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-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Control.java8440
1 files changed, 4220 insertions, 4220 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Control.java b/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Control.java
index 12d66dd630..c601004f37 100755
--- a/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Control.java
+++ b/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Control.java
@@ -1,4224 +1,4224 @@
-package org.eclipse.swt.widgets;
-
-/*
+package org.eclipse.swt.widgets;
+
+/*
* Copyright (c) 2000, 2002 IBM Corp. All rights reserved.
* This file is made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/cpl-v10.html
- */
-
-import org.eclipse.swt.internal.win32.*;
-import org.eclipse.swt.graphics.*;
-import org.eclipse.swt.*;
-import org.eclipse.swt.events.*;
-import org.eclipse.swt.accessibility.*;
-
-/**
- * Control is the abstract superclass of all windowed user interface classes.
- * <p>
- * <dl>
- * <dt><b>Styles:</b>
- * <dd>BORDER</dd>
- * <dd>LEFT_TO_RIGHT, RIGHT_TO_LEFT</dd>
- * <dt><b>Events:</b>
- * <dd>FocusIn, FocusOut, Help, KeyDown, KeyUp, MouseDoubleClick, MouseDown, MouseEnter,
- * MouseExit, MouseHover, MouseUp, MouseMove, Move, Paint, Resize</dd>
- * </dl>
- * <p>
- * Only one of LEFT_TO_RIGHT or RIGHT_TO_LEFT may be specified.
- * </p><p>
- * IMPORTANT: This class is intended to be subclassed <em>only</em>
- * within the SWT implementation.
- * </p>
- *
- * Note: Only one of LEFT_TO_RIGHT and RIGHT_TO_LEFT may be specified.
- */
-
-public abstract class Control extends Widget implements Drawable {
- /**
- * the handle to the OS resource
- * (Warning: This field is platform dependent)
- */
- public int handle;
-
- Composite parent;
- int drawCount, hCursor;
- int foreground, background;
- Menu menu;
- String toolTipText;
- Object layoutData;
- Accessible accessible;
-
- static final short [] ACCENTS = new short [] {'~', '`', '\'', '^', '"'};
-
-/**
- * Prevents uninitialized instances from being created outside the package.
- */
-Control () {
-}
-
-/**
- * Constructs a new instance of this class given its parent
- * and a style value describing its behavior and appearance.
- * <p>
- * The style value is either one of the style constants defined in
- * class <code>SWT</code> which is applicable to instances of this
- * class, or must be built by <em>bitwise OR</em>'ing together
- * (that is, using the <code>int</code> "|" operator) two or more
- * of those <code>SWT</code> style constants. The class description
- * lists the style constants that are applicable to the class.
- * Style bits are also inherited from superclasses.
- * </p>
- *
- * @param parent a composite control which will be the parent of the new instance (cannot be null)
- * @param style the style of control to construct
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
- * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
- * </ul>
- *
- * @see SWT#BORDER
- * @see Widget#checkSubclass
- * @see Widget#getStyle
- */
-public Control (Composite parent, int style) {
- super (parent, style);
- this.parent = parent;
- createWidget ();
-}
-
-/**
- * Adds the listener to the collection of listeners who will
- * be notified when the control is moved or resized, by sending
- * it one of the messages defined in the <code>ControlListener</code>
- * interface.
- *
- * @param listener the listener which should be notified
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see ControlListener
- * @see #removeControlListener
- */
-public void addControlListener(ControlListener listener) {
- checkWidget ();
- if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
- TypedListener typedListener = new TypedListener (listener);
- addListener (SWT.Resize,typedListener);
- addListener (SWT.Move,typedListener);
-}
-
-/**
- * Adds the listener to the collection of listeners who will
- * be notified when the control gains or loses focus, by sending
- * it one of the messages defined in the <code>FocusListener</code>
- * interface.
- *
- * @param listener the listener which should be notified
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see FocusListener
- * @see #removeFocusListener
- */
-public void addFocusListener (FocusListener listener) {
- checkWidget ();
- if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
- TypedListener typedListener = new TypedListener (listener);
- addListener (SWT.FocusIn,typedListener);
- addListener (SWT.FocusOut,typedListener);
-}
-
-/**
- * Adds the listener to the collection of listeners who will
- * be notified when help events are generated for the control,
- * by sending it one of the messages defined in the
- * <code>HelpListener</code> interface.
- *
- * @param listener the listener which should be notified
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see HelpListener
- * @see #removeHelpListener
- */
-public void addHelpListener (HelpListener listener) {
- checkWidget ();
- if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
- TypedListener typedListener = new TypedListener (listener);
- addListener (SWT.Help, typedListener);
-}
-
-/**
- * Adds the listener to the collection of listeners who will
- * be notified when keys are pressed and released on the system keyboard, by sending
- * it one of the messages defined in the <code>KeyListener</code>
- * interface.
- *
- * @param listener the listener which should be notified
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see KeyListener
- * @see #removeKeyListener
- */
-public void addKeyListener (KeyListener listener) {
- checkWidget ();
- if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
- TypedListener typedListener = new TypedListener (listener);
- addListener (SWT.KeyUp,typedListener);
- addListener (SWT.KeyDown,typedListener);
-}
-
-/**
- * Adds the listener to the collection of listeners who will
- * be notified when mouse buttons are pressed and released, by sending
- * it one of the messages defined in the <code>MouseListener</code>
- * interface.
- *
- * @param listener the listener which should be notified
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see MouseListener
- * @see #removeMouseListener
- */
-public void addMouseListener (MouseListener listener) {
- checkWidget ();
- if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
- TypedListener typedListener = new TypedListener (listener);
- addListener (SWT.MouseDown,typedListener);
- addListener (SWT.MouseUp,typedListener);
- addListener (SWT.MouseDoubleClick,typedListener);
-}
-
-/**
- * Adds the listener to the collection of listeners who will
- * be notified when the mouse passes or hovers over controls, by sending
- * it one of the messages defined in the <code>MouseTrackListener</code>
- * interface.
- *
- * @param listener the listener which should be notified
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see MouseTrackListener
- * @see #removeMouseTrackListener
- */
-public void addMouseTrackListener (MouseTrackListener listener) {
- checkWidget ();
- if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
- TypedListener typedListener = new TypedListener (listener);
- addListener (SWT.MouseEnter,typedListener);
- addListener (SWT.MouseExit,typedListener);
- addListener (SWT.MouseHover,typedListener);
-}
-
-/**
- * Adds the listener to the collection of listeners who will
- * be notified when the mouse moves, by sending it one of the
- * messages defined in the <code>MouseMoveListener</code>
- * interface.
- *
- * @param listener the listener which should be notified
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see MouseMoveListener
- * @see #removeMouseMoveListener
- */
-public void addMouseMoveListener (MouseMoveListener listener) {
- checkWidget ();
- if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
- TypedListener typedListener = new TypedListener (listener);
- addListener (SWT.MouseMove,typedListener);
-}
-
-/**
- * Adds the listener to the collection of listeners who will
- * be notified when the receiver needs to be painted, by sending it
- * one of the messages defined in the <code>PaintListener</code>
- * interface.
- *
- * @param listener the listener which should be notified
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see PaintListener
- * @see #removePaintListener
- */
-public void addPaintListener (PaintListener listener) {
- checkWidget ();
- if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
- TypedListener typedListener = new TypedListener (listener);
- addListener (SWT.Paint,typedListener);
-}
-
-/**
- * Adds the listener to the collection of listeners who will
- * be notified when traversal events occur, by sending it
- * one of the messages defined in the <code>TraverseListener</code>
- * interface.
- *
- * @param listener the listener which should be notified
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see TraverseListener
- * @see #removeTraverseListener
- */
-public void addTraverseListener (TraverseListener listener) {
- checkWidget ();
- if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
- TypedListener typedListener = new TypedListener (listener);
- addListener (SWT.Traverse,typedListener);
-}
-
-abstract int callWindowProc (int msg, int wParam, int lParam);
-
-void checkOrientation (Widget parent) {
- super.checkOrientation (parent);
- if ((style & SWT.RIGHT_TO_LEFT) != 0) style |= SWT.MIRRORED;
-}
-
-/**
- * Returns the preferred size of the receiver.
- * <p>
- * The <em>preferred size</em> of a control is the size that it would
- * best be displayed at. The width hint and height hint arguments
- * allow the caller to ask a control questions such as "Given a particular
- * width, how high does the control need to be to show all of the contents?"
- * To indicate that the caller does not wish to constrain a particular
- * dimension, the constant <code>SWT.DEFAULT</code> is passed for the hint.
- * </p>
- *
- * @param wHint the width hint (can be <code>SWT.DEFAULT</code>)
- * @param hHint the height hint (can be <code>SWT.DEFAULT</code>)
- * @return the preferred size of the control
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see Layout
- * @see #getBorderWidth
- * @see #getBounds
- * @see #getSize
- * @see #pack
- * @see "computeTrim, getClientArea for controls that implement them"
- */
-public Point computeSize (int wHint, int hHint) {
- return computeSize (wHint, hHint, true);
-}
-
-/**
- * Returns the preferred size of the receiver.
- * <p>
- * The <em>preferred size</em> of a control is the size that it would
- * best be displayed at. The width hint and height hint arguments
- * allow the caller to ask a control questions such as "Given a particular
- * width, how high does the control need to be to show all of the contents?"
- * To indicate that the caller does not wish to constrain a particular
- * dimension, the constant <code>SWT.DEFAULT</code> is passed for the hint.
- * </p><p>
- * If the changed flag is <code>true</code>, it indicates that the receiver's
- * <em>contents</em> have changed, therefore any caches that a layout manager
- * containing the control may have been keeping need to be flushed. When the
- * control is resized, the changed flag will be <code>false</code>, so layout
- * manager caches can be retained.
- * </p>
- *
- * @param wHint the width hint (can be <code>SWT.DEFAULT</code>)
- * @param hHint the height hint (can be <code>SWT.DEFAULT</code>)
- * @param changed <code>true</code> if the control's contents have changed, and <code>false</code> otherwise
- * @return the preferred size of the control.
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see Layout
- * @see #getBorderWidth
- * @see #getBounds
- * @see #getSize
- * @see #pack
- * @see "computeTrim, getClientArea for controls that implement them"
- */
-public Point computeSize (int wHint, int hHint, boolean changed) {
- checkWidget ();
- int width = DEFAULT_WIDTH;
- int height = DEFAULT_HEIGHT;
- if (wHint != SWT.DEFAULT) width = wHint;
- if (hHint != SWT.DEFAULT) height = hHint;
- int border = getBorderWidth ();
- width += border * 2;
- height += border * 2;
- return new Point (width, height);
-}
-
-Control computeTabGroup () {
- if (isTabGroup ()) return this;
- return parent.computeTabGroup ();
-}
-
-Control computeTabRoot () {
- Control [] tabList = parent._getTabList ();
- if (tabList != null) {
- int index = 0;
- while (index < tabList.length) {
- if (tabList [index] == this) break;
- index++;
- }
- if (index == tabList.length) {
- if (isTabGroup ()) return this;
- }
- }
- return parent.computeTabRoot ();
-}
-
-Control [] computeTabList () {
- if (isTabGroup ()) {
- if (getVisible () && getEnabled ()) {
- return new Control [] {this};
- }
- }
- return new Control [0];
-}
-
-void createHandle () {
- int hwndParent = 0;
- if (handle != 0) {
- hwndParent = handle;
- } else {
- if (parent != null) hwndParent = parent.handle;
- }
- handle = OS.CreateWindowEx (
- widgetExtStyle (),
- windowClass (),
- null,
- widgetStyle (),
- OS.CW_USEDEFAULT, 0, OS.CW_USEDEFAULT, 0,
- hwndParent,
- 0,
- OS.GetModuleHandle (null),
- null);
- if (handle == 0) error (SWT.ERROR_NO_HANDLES);
- int bits = OS.GetWindowLong (handle, OS.GWL_STYLE);
- if ((bits & OS.WS_CHILD) != 0) {
- OS.SetWindowLong (handle, OS.GWL_ID, handle);
- }
- if (OS.IsDBLocale && parent != null) {
- int hIMC = OS.ImmGetContext (hwndParent);
- OS.ImmAssociateContext (handle, hIMC);
- OS.ImmReleaseContext (hwndParent, hIMC);
- }
-}
-
-void createWidget () {
- foreground = background = -1;
- checkOrientation (parent);
- createHandle ();
- register ();
- subclass ();
- setDefaultFont ();
-}
-
-int defaultBackground () {
- if (OS.IsWinCE) return OS.GetSysColor (OS.COLOR_WINDOW);
- return OS.GetSysColor (OS.COLOR_BTNFACE);
-}
-
-int defaultFont () {
- Display display = getDisplay ();
- return display.systemFont ();
-}
-
-int defaultForeground () {
- return OS.GetSysColor (OS.COLOR_WINDOWTEXT);
-}
-
-void deregister () {
- WidgetTable.remove (handle);
-}
-
-void destroyWidget () {
- int hwnd = handle;
- releaseHandle ();
- if (hwnd != 0) {
- OS.DestroyWindow (hwnd);
- }
-}
-
-void drawBackground (int hDC) {
- RECT rect = new RECT ();
- OS.GetClientRect (handle, rect);
- drawBackground (hDC, rect);
-}
-
-void drawBackground (int hDC, RECT rect) {
- Display display = getDisplay ();
- int hPalette = display.hPalette;
- if (hPalette != 0) {
- OS.SelectPalette (hDC, hPalette, false);
- OS.RealizePalette (hDC);
- }
- int pixel = getBackgroundPixel ();
- int hBrush = findBrush (pixel);
- OS.FillRect (hDC, rect, hBrush);
-}
-
-int findBrush (int pixel) {
- return parent.findBrush (pixel);
-}
-
-int findCursor () {
- if (hCursor != 0) return hCursor;
- return parent.findCursor ();
-}
-
-char findMnemonic (String string) {
- int index = 0;
- int length = string.length ();
- do {
- while (index < length && string.charAt (index) != Mnemonic) index++;
- if (++index >= length) return '\0';
- if (string.charAt (index) != Mnemonic) return string.charAt (index);
- index++;
- } while (index < length);
- return '\0';
-}
-
-void fixFocus () {
- Shell shell = getShell ();
- Control control = this;
- while ((control = control.parent) != null) {
- if (control.setFocus () || control == shell) return;
- }
- OS.SetFocus (0);
-}
-
-/**
- * Forces the receiver to have the <em>keyboard focus</em>, causing
- * all keyboard events to be delivered to it.
- *
- * @return <code>true</code> if the control got focus, and <code>false</code> if it was unable to.
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see #setFocus
- */
-public boolean forceFocus () {
- checkWidget ();
- Decorations shell = menuShell ();
- shell.setSavedFocus (this);
- if (!isEnabled () || !isVisible () || !isActive ()) return false;
- if (isFocusControl ()) return true;
- shell.bringToTop ();
- /*
- * This code is intentionally commented.
- *
- * When setting focus to a control, it is
- * possible that application code can set
- * the focus to another control inside of
- * WM_SETFOCUS. In this case, the original
- * control will no longer have the focus
- * and the call to setFocus() will return
- * false indicating failure.
- *
- * We are still working on a solution at
- * this time.
- */
-// if (OS.GetFocus () != OS.SetFocus (handle)) return false;
- OS.SetFocus (handle);
- return isFocusControl ();
-}
-
-void forceResize () {
- if (parent == null) return;
- WINDOWPOS [] lpwp = parent.lpwp;
- if (lpwp == null) return;
- for (int i=0; i<lpwp.length; i++) {
- WINDOWPOS wp = lpwp [i];
- if (wp != null && wp.hwnd == handle) {
- /*
- * This code is intentionally commented. All widgets that
- * are created by SWT have WS_CLIPSIBLINGS to ensure that
- * application code does not draw outside of the control.
- */
-// int count = parent.getChildrenCount ();
-// if (count > 1) {
-// int bits = OS.GetWindowLong (handle, OS.GWL_STYLE);
-// if ((bits & OS.WS_CLIPSIBLINGS) == 0) wp.flags |= OS.SWP_NOCOPYBITS;
-// }
- OS.SetWindowPos (wp.hwnd, 0, wp.x, wp.y, wp.cx, wp.cy, wp.flags);
- lpwp [i] = null;
- return;
- }
- }
-}
-
-/**
- * Returns the accessible object for the receiver.
- * If this is the first time this object is requested,
- * then the object is created and returned.
- *
- * @return the accessible object
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see Accessible#addAccessibleListener
- * @see Accessible#addAccessibleControlListener
- *
- * @since 2.0
- */
-public Accessible getAccessible () {
- checkWidget ();
- if (accessible == null) accessible = new_Accessible (this);
- return accessible;
-}
-
-/**
- * Returns the receiver's background color.
- *
- * @return the background color
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public Color getBackground () {
- checkWidget ();
- return Color.win32_new (getDisplay (), getBackgroundPixel ());
-}
-
-int getBackgroundPixel () {
- if (background == -1) return defaultBackground ();
- return background;
-}
-
-/**
- * Returns the receiver's border width.
- *
- * @return the border width
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public int getBorderWidth () {
- checkWidget ();
- int bits = OS.GetWindowLong (handle, OS.GWL_EXSTYLE);
- if ((bits & OS.WS_EX_CLIENTEDGE) != 0) return OS.GetSystemMetrics (OS.SM_CXEDGE);
- if ((bits & OS.WS_EX_STATICEDGE) != 0) return OS.GetSystemMetrics (OS.SM_CXBORDER);
- return 0;
-}
-
-/**
- * Returns a rectangle describing the receiver's size and location
- * relative to its parent (or its display if its parent is null).
- *
- * @return the receiver's bounding rectangle
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public Rectangle getBounds () {
- checkWidget ();
- forceResize ();
- RECT rect = new RECT ();
- OS.GetWindowRect (handle, rect);
- int hwndParent = parent == null ? 0 : parent.handle;
- OS.MapWindowPoints (0, hwndParent, rect, 2);
- int width = rect.right - rect.left;
- int height = rect.bottom - rect.top;
- return new Rectangle (rect.left, rect.top, width, height);
-}
-
-int getCodePage () {
- int hFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0);
- LOGFONT logFont = new LOGFONT ();
- OS.GetObject (hFont, LOGFONT.sizeof, logFont);
- int cs = logFont.lfCharSet & 0xFF;
- int [] lpCs = new int [8];
- if (OS.TranslateCharsetInfo (cs, lpCs, OS.TCI_SRCCHARSET)) {
- return lpCs [1];
- }
- return OS.GetACP ();
-}
-
-/**
- * Returns the display that the receiver was created on.
- *
- * @return the receiver's display
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public Display getDisplay () {
- Composite parent = this.parent;
- if (parent == null) error (SWT.ERROR_WIDGET_DISPOSED);
- return parent.getDisplay ();
-}
-
-/**
- * Returns <code>true</code> if the receiver is enabled, and
- * <code>false</code> otherwise. A disabled control is typically
- * not selectable from the user interface and draws with an
- * inactive or "grayed" look.
- *
- * @return the receiver's enabled state
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see #isEnabled
- */
-public boolean getEnabled () {
- checkWidget ();
- return OS.IsWindowEnabled (handle);
-}
-
-/**
- * Returns the font that the receiver will use to paint textual information.
- *
- * @return the receiver's font
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public Font getFont () {
- checkWidget ();
- int hFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0);
- if (hFont == 0) hFont = defaultFont ();
- return Font.win32_new (getDisplay (), hFont);
-}
-
-/**
- * Returns the foreground color that the receiver will use to draw.
- *
- * @return the receiver's foreground color
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public Color getForeground () {
- checkWidget ();
- return Color.win32_new (getDisplay (), getForegroundPixel ());
-}
-
-int getForegroundPixel () {
- if (foreground == -1) return defaultForeground ();
- return foreground;
-}
-
-/**
- * Returns layout data which is associated with the receiver.
- *
- * @return the receiver's layout data
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public Object getLayoutData () {
- checkWidget ();
- return layoutData;
-}
-
-/**
- * Returns a point describing the receiver's location relative
- * to its parent (or its display if its parent is null).
- *
- * @return the receiver's location
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public Point getLocation () {
- checkWidget ();
- forceResize ();
- RECT rect = new RECT ();
- OS.GetWindowRect (handle, rect);
- int hwndParent = parent == null ? 0 : parent.handle;
- OS.MapWindowPoints (0, hwndParent, rect, 2);
- return new Point (rect.left, rect.top);
-}
-
-/**
- * Returns the receiver's pop up menu if it has one, or null
- * if it does not. All controls may optionally have a pop up
- * menu that is displayed when the user requests one for
- * the control. The sequence of key strokes, button presses
- * and/or button releases that are used to request a pop up
- * menu is platform specific.
- *
- * @return the receiver's menu
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public Menu getMenu () {
- checkWidget ();
- return menu;
-}
-
-/**
- * Returns the receiver's parent, which must be a <code>Composite</code>
- * or null when the receiver is a shell that was created with null or
- * a display for a parent.
- *
- * @return the receiver's parent
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public Composite getParent () {
- checkWidget ();
- return parent;
-}
-
-Control [] getPath () {
- int count = 0;
- Shell shell = getShell ();
- Control control = this;
- while (control != shell) {
- count++;
- control = control.parent;
- }
- control = this;
- Control [] result = new Control [count];
- while (control != shell) {
- result [--count] = control;
- control = control.parent;
- }
- return result;
-}
-
-/**
- * Returns the receiver's shell. For all controls other than
- * shells, this simply returns the control's nearest ancestor
- * shell. Shells return themselves, even if they are children
- * of other shells.
- *
- * @return the receiver's shell
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see #getParent
- */
-public Shell getShell () {
- checkWidget ();
- return parent.getShell ();
-}
-
-/**
- * Returns a point describing the receiver's size. The
- * x coordinate of the result is the width of the receiver.
- * The y coordinate of the result is the height of the
- * receiver.
- *
- * @return the receiver's size
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public Point getSize () {
- checkWidget ();
- forceResize ();
- RECT rect = new RECT ();
- OS.GetWindowRect (handle, rect);
- int width = rect.right - rect.left;
- int height = rect.bottom - rect.top;
- return new Point (width, height);
-}
-
-/**
- * Returns the receiver's tool tip text, or null if it has
- * not been set.
- *
- * @return the receiver's tool tip text
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public String getToolTipText () {
- checkWidget ();
- return toolTipText;
-}
-
-/**
- * Returns <code>true</code> if the receiver is visible, and
- * <code>false</code> otherwise.
- * <p>
- * If one of the receiver's ancestors is not visible or some
- * other condition makes the receiver not visible, this method
- * may still indicate that it is considered visible even though
- * it may not actually be showing.
- * </p>
- *
- * @return the receiver's visibility state
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public boolean getVisible () {
- checkWidget ();
- int bits = OS.GetWindowLong (handle, OS.GWL_STYLE);
- return (bits & OS.WS_VISIBLE) != 0;
-}
-
-boolean hasCursor () {
- RECT rect = new RECT ();
- if (!OS.GetClientRect (handle, rect)) return false;
- if (OS.MapWindowPoints (handle, 0, rect, 2) == 0) return false;
- POINT pt = new POINT ();
- return (OS.GetCursorPos (pt) && OS.PtInRect (rect, pt));
-}
-
-boolean hasFocus () {
- /*
- * If a non-SWT child of the control has focus,
- * then this control is considered to have focus
- * even though it does not have focus in Windows.
- */
- int hwndFocus = OS.GetFocus ();
- while (hwndFocus != 0) {
- if (hwndFocus == handle) return true;
- if (WidgetTable.get (hwndFocus) != null) {
- return false;
- }
- hwndFocus = OS.GetParent (hwndFocus);
- }
- return false;
-}
-
-/**
- * Invokes platform specific functionality to allocate a new GC handle.
- * <p>
- * <b>IMPORTANT:</b> This method is <em>not</em> part of the public
- * API for <code>Control</code>. It is marked public only so that it
- * can be shared within the packages provided by SWT. It is not
- * available on all platforms, and should never be called from
- * application code.
- * </p>
- *
- * @param data the platform specific GC data
- * @return the platform specific GC handle
- *
- * @private
- */
-public int internal_new_GC (GCData data) {
- checkWidget();
- int hDC;
- if (data == null || data.ps == null) {
- hDC = OS.GetDC (handle);
- } else {
- hDC = OS.BeginPaint (handle, data.ps);
- }
- if (hDC == 0) SWT.error(SWT.ERROR_NO_HANDLES);
- if (data != null) {
- data.device = getDisplay ();
- data.foreground = getForegroundPixel ();
- data.background = getBackgroundPixel ();
- data.hFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0);
- data.hwnd = handle;
- }
- return hDC;
-}
-
-/**
- * Invokes platform specific functionality to dispose a GC handle.
- * <p>
- * <b>IMPORTANT:</b> This method is <em>not</em> part of the public
- * API for <code>Control</code>. It is marked public only so that it
- * can be shared within the packages provided by SWT. It is not
- * available on all platforms, and should never be called from
- * application code.
- * </p>
- *
- * @param handle the platform specific GC handle
- * @param data the platform specific GC data
- *
- * @private
- */
-public void internal_dispose_GC (int hDC, GCData data) {
- checkWidget ();
- if (data == null || data.ps == null) {
- OS.ReleaseDC (handle, hDC);
- } else {
- OS.EndPaint (handle, data.ps);
- }
-}
-
-boolean isActive () {
- Display display = getDisplay ();
- Shell modal = display.getModalShell ();
- if (modal != null && modal != this) {
- if ((modal.style & SWT.PRIMARY_MODAL) != 0) {
- Shell shell = getShell ();
- if (modal.parent == shell) {
- return false;
- }
- }
- int bits = SWT.APPLICATION_MODAL | SWT.SYSTEM_MODAL;
- if ((modal.style & bits) != 0) {
- Control control = this;
- while (control != null) {
- if (control == modal) break;
- control = control.parent;
- }
- if (control != modal) return false;
- }
- }
- return getShell ().getEnabled ();
-}
-
-public boolean isDisposed () {
- return handle == 0;
-}
-
-/**
- * Returns <code>true</code> if the receiver is enabled and all
- * of the receiver's ancestors are enabled, and <code>false</code>
- * otherwise. A disabled control is typically not selectable from the
- * user interface and draws with an inactive or "grayed" look.
- *
- * @return the receiver's enabled state
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see #getEnabled
- */
-public boolean isEnabled () {
- checkWidget ();
- return getEnabled () && parent.isEnabled ();
-}
-
-/**
- * Returns <code>true</code> if the receiver has the user-interface
- * focus, and <code>false</code> otherwise.
- *
- * @return the receiver's focus state
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public boolean isFocusControl () {
- checkWidget ();
- return hasFocus ();
-}
-
-boolean isFocusAncestor () {
- Display display = getDisplay ();
- Control control = display.getFocusControl ();
- while (control != null && control != this) {
- control = control.parent;
- }
- return control == this;
-}
-
-/**
- * Returns <code>true</code> if the underlying operating
- * system supports this reparenting, otherwise <code>false</code>
- *
- * @return <code>true</code> if the widget can be reparented, otherwise <code>false</code>
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public boolean isReparentable () {
- checkWidget ();
- return true;
-}
-
-boolean isShowing () {
- /*
- * This is not complete. Need to check if the
- * widget is obscurred by a parent or sibling.
- */
- if (!isVisible ()) return false;
- Control control = this;
- while (control != null) {
- Point size = control.getSize ();
- if (size.x == 0 || size.y == 0) {
- return false;
- }
- control = control.parent;
- }
- return true;
- /*
- * Check to see if current damage is included.
- */
-// if (!OS.IsWindowVisible (handle)) return false;
-// int flags = OS.DCX_CACHE | OS.DCX_CLIPCHILDREN | OS.DCX_CLIPSIBLINGS;
-// int hDC = OS.GetDCEx (handle, 0, flags);
-// int result = OS.GetClipBox (hDC, new RECT ());
-// OS.ReleaseDC (handle, hDC);
-// return result != OS.NULLREGION;
-}
-
-boolean isTabGroup () {
- Control [] tabList = parent._getTabList ();
- if (tabList != null) {
- for (int i=0; i<tabList.length; i++) {
- if (tabList [i] == this) return true;
- }
- }
- int bits = OS.GetWindowLong (handle, OS.GWL_STYLE);
- return (bits & OS.WS_TABSTOP) != 0;
-}
-
-boolean isTabItem () {
- Control [] tabList = parent._getTabList ();
- if (tabList != null) {
- for (int i=0; i<tabList.length; i++) {
- if (tabList [i] == this) return false;
- }
- }
- int bits = OS.GetWindowLong (handle, OS.GWL_STYLE);
- if ((bits & OS.WS_TABSTOP) != 0) return false;
- int code = OS.SendMessage (handle, OS.WM_GETDLGCODE, 0, 0);
- if ((code & OS.DLGC_STATIC) != 0) return false;
- if ((code & OS.DLGC_WANTALLKEYS) != 0) return false;
- if ((code & OS.DLGC_WANTARROWS) != 0) return false;
- if ((code & OS.DLGC_WANTTAB) != 0) return false;
- return true;
-}
-
-/**
- * Returns <code>true</code> if the receiver is visible and all
- * of the receiver's ancestors are visible and <code>false</code>
- * otherwise.
- *
- * @return the receiver's visibility state
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see #getVisible
- */
-public boolean isVisible () {
- checkWidget ();
- return OS.IsWindowVisible (handle);
-}
-
-Decorations menuShell () {
- return parent.menuShell ();
-}
-
-boolean mnemonicHit (char key) {
- return false;
-}
-
-boolean mnemonicMatch (char key) {
- return false;
-}
-
-/**
- * Moves the receiver above the specified control in the
- * drawing order. If the argument is null, then the receiver
- * is moved to the top of the drawing order. The control at
- * the top of the drawing order will not be covered by other
- * controls even if they occupy intersecting areas.
- *
- * @param the sibling control (or null)
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_INVALID_ARGUMENT - if the control has been disposed</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public void moveAbove (Control control) {
- checkWidget ();
- int hwndAbove = OS.HWND_TOP;
- if (control != null) {
- if (control.isDisposed ()) error(SWT.ERROR_INVALID_ARGUMENT);
- if (parent != control.parent) return;
- int hwnd = control.handle;
- if (hwnd == 0 || hwnd == handle) return;
- hwndAbove = OS.GetWindow (hwnd, OS.GW_HWNDPREV);
- /*
- * Bug in Windows. For some reason, when GetWindow ()
- * with GW_HWNDPREV is used to query the previous window
- * in the z-order with the first child, Windows returns
- * the first child instead of NULL. The fix is to detect
- * this case and move the control to the top.
- */
- if (hwndAbove == 0 || hwndAbove == hwnd) {
- hwndAbove = OS.HWND_TOP;
- }
- }
- int flags = OS.SWP_NOSIZE | OS.SWP_NOMOVE | OS.SWP_NOACTIVATE;
- OS.SetWindowPos (handle, hwndAbove, 0, 0, 0, 0, flags);
-}
-
-/**
- * Moves the receiver below the specified control in the
- * drawing order. If the argument is null, then the receiver
- * is moved to the bottom of the drawing order. The control at
- * the bottom of the drawing order will be covered by all other
- * controls which occupy intersecting areas.
- *
- * @param the sibling control (or null)
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_INVALID_ARGUMENT - if the control has been disposed</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public void moveBelow (Control control) {
- checkWidget ();
- int hwndAbove = OS.HWND_BOTTOM;
- if (control != null) {
- if (control.isDisposed ()) error(SWT.ERROR_INVALID_ARGUMENT);
- if (parent != control.parent) return;
- hwndAbove = control.handle;
- }
- if (hwndAbove == 0 || hwndAbove == handle) return;
- int flags = OS.SWP_NOSIZE | OS.SWP_NOMOVE | OS.SWP_NOACTIVATE;
- OS.SetWindowPos (handle, hwndAbove, 0, 0, 0, 0, flags);
-}
-
-Accessible new_Accessible (Control control) {
- return Accessible.internal_new_Accessible (this);
-}
-
-/**
- * Causes the receiver to be resized to its preferred size.
- * For a composite, this involves computing the preferred size
- * from its layout, if there is one.
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see #computeSize
- */
-public void pack () {
- checkWidget ();
- pack (true);
-}
-
-/**
- * Causes the receiver to be resized to its preferred size.
- * For a composite, this involves computing the preferred size
- * from its layout, if there is one.
- * <p>
- * If the changed flag is <code>true</code>, it indicates that the receiver's
- * <em>contents</em> have changed, therefore any caches that a layout manager
- * containing the control may have been keeping need to be flushed. When the
- * control is resized, the changed flag will be <code>false</code>, so layout
- * manager caches can be retained.
- * </p>
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see #computeSize
- */
-public void pack (boolean changed) {
- checkWidget ();
- setSize (computeSize (SWT.DEFAULT, SWT.DEFAULT, changed));
-}
-
-/**
- * Causes the entire bounds of the receiver to be marked
- * as needing to be redrawn. The next time a paint request
- * is processed, the control will be completely painted.
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see #update
- */
-public void redraw () {
- checkWidget ();
- if (!OS.IsWindowVisible (handle)) return;
- if (OS.IsWinCE) {
- OS.InvalidateRect (handle, null, true);
- } else {
- int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE;
- OS.RedrawWindow (handle, null, 0, flags);
- }
-}
-
-/**
- * Causes the rectangular area of the receiver specified by
- * the arguments to be marked as needing to be redrawn.
- * The next time a paint request is processed, that area of
- * the receiver will be painted. If the <code>all</code> flag
- * is <code>true</code>, any children of the receiver which
- * intersect with the specified area will also paint their
- * intersecting areas. If the <code>all</code> flag is
- * <code>false</code>, the children will not be painted.
- *
- * @param x the x coordinate of the area to draw
- * @param y the y coordinate of the area to draw
- * @param width the width of the area to draw
- * @param height the height of the area to draw
- * @param all <code>true</code> if children should redraw, and <code>false</code> otherwise
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see #update
- */
-public void redraw (int x, int y, int width, int height, boolean all) {
- checkWidget ();
- if (width <= 0 || height <= 0) return;
- if (!OS.IsWindowVisible (handle)) return;
- RECT rect = new RECT ();
- OS.SetRect (rect, x, y, x + width, y + height);
- if (OS.IsWinCE) {
- OS.InvalidateRect (handle, rect, true);
- } else {
- int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE;
- if (all) flags |= OS.RDW_ALLCHILDREN;
- OS.RedrawWindow (handle, rect, 0, flags);
- }
-}
-
-void register () {
- WidgetTable.put (handle, this);
-}
-
-void releaseHandle () {
- super.releaseHandle ();
- handle = 0;
-}
-
-void releaseWidget () {
- super.releaseWidget ();
- if (OS.IsDBLocale) {
- OS.ImmAssociateContext (handle, 0);
- }
- if (toolTipText != null) {
- Shell shell = getShell ();
- shell.setToolTipText (handle, null);
- }
- toolTipText = null;
- if (menu != null && !menu.isDisposed ()) {
- menu.dispose ();
- }
- menu = null;
- deregister ();
- unsubclass ();
- parent = null;
- layoutData = null;
- if (accessible != null) {
- accessible.internal_dispose_Accessible ();
- }
- accessible = null;
-}
-
-/**
- * Removes the listener from the collection of listeners who will
- * be notified when the control is moved or resized.
- *
- * @param listener the listener which should be notified
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see ControlListener
- * @see #addControlListener
- */
-public void removeControlListener (ControlListener listener) {
- checkWidget ();
- if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
- if (eventTable == null) return;
- eventTable.unhook (SWT.Move, listener);
- eventTable.unhook (SWT.Resize, listener);
-}
-
-/**
- * Removes the listener from the collection of listeners who will
- * be notified when the control gains or loses focus.
- *
- * @param listener the listener which should be notified
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see FocusListener
- * @see #addFocusListener
- */
-public void removeFocusListener(FocusListener listener) {
- checkWidget ();
- if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
- if (eventTable == null) return;
- eventTable.unhook (SWT.FocusIn, listener);
- eventTable.unhook (SWT.FocusOut, listener);
-}
-
-/**
- * Removes the listener from the collection of listeners who will
- * be notified when the help events are generated for the control.
- *
- * @param listener the listener which should be notified
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see HelpListener
- * @see #addHelpListener
- */
-public void removeHelpListener (HelpListener listener) {
- checkWidget ();
- if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
- if (eventTable == null) return;
- eventTable.unhook (SWT.Help, listener);
-}
-
-/**
- * Removes the listener from the collection of listeners who will
- * be notified when keys are pressed and released on the system keyboard.
- *
- * @param listener the listener which should be notified
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see KeyListener
- * @see #addKeyListener
- */
-public void removeKeyListener(KeyListener listener) {
- checkWidget ();
- if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
- if (eventTable == null) return;
- eventTable.unhook (SWT.KeyUp, listener);
- eventTable.unhook (SWT.KeyDown, listener);
-}
-
-/**
- * Removes the listener from the collection of listeners who will
- * be notified when the mouse passes or hovers over controls.
- *
- * @param listener the listener which should be notified
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see MouseTrackListener
- * @see #addMouseTrackListener
- */
-public void removeMouseTrackListener(MouseTrackListener listener) {
- checkWidget ();
- if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
- if (eventTable == null) return;
- eventTable.unhook (SWT.MouseEnter, listener);
- eventTable.unhook (SWT.MouseExit, listener);
- eventTable.unhook (SWT.MouseHover, listener);
-}
-
-/**
- * Removes the listener from the collection of listeners who will
- * be notified when mouse buttons are pressed and released.
- *
- * @param listener the listener which should be notified
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see MouseListener
- * @see #addMouseListener
- */
-public void removeMouseListener (MouseListener listener) {
- checkWidget ();
- if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
- if (eventTable == null) return;
- eventTable.unhook (SWT.MouseDown, listener);
- eventTable.unhook (SWT.MouseUp, listener);
- eventTable.unhook (SWT.MouseDoubleClick, listener);
-}
-
-/**
- * Removes the listener from the collection of listeners who will
- * be notified when the mouse moves.
- *
- * @param listener the listener which should be notified
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see MouseMoveListener
- * @see #addMouseMoveListener
- */
-public void removeMouseMoveListener(MouseMoveListener listener) {
- checkWidget ();
- if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
- if (eventTable == null) return;
- eventTable.unhook (SWT.MouseMove, listener);
-}
-
-/**
- * Removes the listener from the collection of listeners who will
- * be notified when the receiver needs to be painted.
- *
- * @param listener the listener which should be notified
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see PaintListener
- * @see #addPaintListener
- */
-public void removePaintListener(PaintListener listener) {
- checkWidget ();
- if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
- if (eventTable == null) return;
- eventTable.unhook(SWT.Paint, listener);
-}
-
-/**
- * Removes the listener from the collection of listeners who will
- * be notified when traversal events occur.
- *
- * @param listener the listener which should be notified
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see TraverseListener
- * @see #addTraverseListener
- */
-public void removeTraverseListener(TraverseListener listener) {
- checkWidget ();
- if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
- if (eventTable == null) return;
- eventTable.unhook (SWT.Traverse, listener);
-}
-
-boolean sendKeyEvent (int type, int msg, int wParam, int lParam) {
- Event event = new Event ();
- if (!setKeyState (event, type)) return true;
- return sendKeyEvent (type, msg, wParam, lParam, event);
-}
-
-boolean sendKeyEvent (int type, int msg, int wParam, int lParam, Event event) {
- postEvent (type, event);
- return true;
-}
-
-boolean sendMouseEvent (int type, int button, int msg, int wParam, int lParam) {
- Event event = new Event ();
- event.button = button;
- event.x = (short) (lParam & 0xFFFF);
- event.y = (short) (lParam >> 16);
- setInputState (event, type);
- return sendMouseEvent (type, msg, wParam, lParam, event);
-}
-
-boolean sendMouseEvent (int type, int msg, int wParam, int lParam, Event event) {
- postEvent (type, event);
- return true;
-}
-
-/**
- * Sets the receiver's background color to the color specified
- * by the argument, or to the default system color for the control
- * if the argument is null.
- *
- * @param color the new color (or null)
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public void setBackground (Color color) {
- checkWidget ();
- int pixel = -1;
- if (color != null) {
- if (color.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
- pixel = color.handle;
- }
- setBackgroundPixel (pixel);
-}
-
-void setBackgroundPixel (int pixel) {
- if (background == pixel) return;
- background = pixel;
- OS.InvalidateRect (handle, null, true);
-}
-
-/**
- * Sets the receiver's size and location to the rectangular
- * area specified by the arguments. The <code>x</code> and
- * <code>y</code> arguments are relative to the receiver's
- * parent (or its display if its parent is null).
- * <p>
- * Note: Attempting to set the width or height of the
- * receiver to a negative number will cause that
- * value to be set to zero instead.
- * </p>
- *
- * @param x the new x coordinate for the receiver
- * @param y the new y coordinate for the receiver
- * @param width the new width for the receiver
- * @param height the new height for the receiver
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public void setBounds (int x, int y, int width, int height) {
- checkWidget ();
- int flags = OS.SWP_NOZORDER | OS.SWP_DRAWFRAME | OS.SWP_NOACTIVATE;
- setBounds (x, y, Math.max (0, width), Math.max (0, height), flags);
-}
-
-void setBounds (int x, int y, int width, int height, int flags) {
- if (parent == null) {
- OS.SetWindowPos (handle, 0, x, y, width, height, flags);
- return;
- }
- if (parent.lpwp == null) {
- /*
- * This code is intentionally commented. All widgets that
- * are created by SWT have WS_CLIPSIBLINGS to ensure that
- * application code does not draw outside of the control.
- */
-// int count = parent.getChildrenCount ();
-// if (count > 1) {
-// int bits = OS.GetWindowLong (handle, OS.GWL_STYLE);
-// if ((bits & OS.WS_CLIPSIBLINGS) == 0) flags |= OS.SWP_NOCOPYBITS;
-// }
- OS.SetWindowPos (handle, 0, x, y, width, height, flags);
- return;
- }
- forceResize ();
- WINDOWPOS [] lpwp = parent.lpwp;
- int index = 0;
- while (index < lpwp.length) {
- if (lpwp [index] == null) break;
- index ++;
- }
- if (index == lpwp.length) {
- WINDOWPOS [] newLpwp = new WINDOWPOS [lpwp.length + 4];
- System.arraycopy (lpwp, 0, newLpwp, 0, lpwp.length);
- parent.lpwp = lpwp = newLpwp;
- }
- WINDOWPOS wp = new WINDOWPOS ();
- wp.hwnd = handle;
- wp.x = x;
- wp.y = y;
- wp.cx = width;
- wp.cy = height;
- wp.flags = flags;
- lpwp [index] = wp;
-}
-
-/**
- * Sets the receiver's size and location to the rectangular
- * area specified by the argument. The <code>x</code> and
- * <code>y</code> fields of the rectangle are relative to
- * the receiver's parent (or its display if its parent is null).
- * <p>
- * Note: Attempting to set the width or height of the
- * receiver to a negative number will cause that
- * value to be set to zero instead.
- * </p>
- *
- * @param rect the new bounds for the receiver
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public void setBounds (Rectangle rect) {
- checkWidget ();
- if (rect == null) error (SWT.ERROR_NULL_ARGUMENT);
- setBounds (rect.x, rect.y, rect.width, rect.height);
-}
-
-/**
- * If the argument is <code>true</code>, causes the receiver to have
- * all mouse events delivered to it until the method is called with
- * <code>false</code> as the argument.
- *
- * @param capture <code>true</code> to capture the mouse, and <code>false</code> to release it
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public void setCapture (boolean capture) {
- checkWidget ();
- if (capture) {
- OS.SetCapture (handle);
- } else {
- if (OS.GetCapture () == handle) {
- OS.ReleaseCapture ();
- }
- }
-}
-
-/**
- * Sets the receiver's cursor to the cursor specified by the
- * argument, or to the default cursor for that kind of control
- * if the argument is null.
- * <p>
- * When the mouse pointer passes over a control its appearance
- * is changed to match the control's cursor.
- * </p>
- *
- * @param cursor the new cursor (or null)
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public void setCursor (Cursor cursor) {
- checkWidget ();
- hCursor = 0;
- if (cursor != null) {
- if (cursor.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
- hCursor = cursor.handle;
- }
- if (OS.IsWinCE) {
- OS.SetCursor (hCursor);
- return;
- }
- int hwndCursor = OS.GetCapture ();
- if (hwndCursor == 0) {
- POINT pt = new POINT ();
- if (!OS.GetCursorPos (pt)) return;
- int hwnd = hwndCursor = OS.WindowFromPoint (pt);
- while (hwnd != 0 && hwnd != handle) {
- hwnd = OS.GetParent (hwnd);
- }
- if (hwnd == 0) return;
- }
- int lParam = OS.HTCLIENT | (OS.WM_MOUSEMOVE << 16);
- OS.SendMessage (hwndCursor, OS.WM_SETCURSOR, hwndCursor, lParam);
-}
-
-void setDefaultFont () {
- Display display = getDisplay ();
- int hFont = display.systemFont ();
- OS.SendMessage (handle, OS.WM_SETFONT, hFont, 0);
-}
-
-/**
- * Enables the receiver if the argument is <code>true</code>,
- * and disables it otherwise. A disabled control is typically
- * not selectable from the user interface and draws with an
- * inactive or "grayed" look.
- *
- * @param enabled the new enabled state
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public void setEnabled (boolean enabled) {
- checkWidget ();
-
- /*
- * Feature in Windows. If the receiver has focus, disabling
- * the receiver causes no window to have focus. The fix is
- * to assign focus to the first ancestor window that takes
- * focus. If no window will take focus, set focus to the
- * desktop.
- */
- boolean fixFocus = false;
- if (!enabled) fixFocus = isFocusAncestor ();
- OS.EnableWindow (handle, enabled);
- if (fixFocus) fixFocus ();
-}
-
-/**
- * Causes the receiver to have the <em>keyboard focus</em>,
- * such that all keyboard events will be delivered to it.
- *
- * @return <code>true</code> if the control got focus, and <code>false</code> if it was unable to.
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see #forceFocus
- */
-public boolean setFocus () {
- checkWidget ();
- return forceFocus ();
-}
-
-/**
- * Sets the font that the receiver will use to paint textual information
- * to the font specified by the argument, or to the default font for that
- * kind of control if the argument is null.
- *
- * @param font the new font (or null)
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public void setFont (Font font) {
- checkWidget ();
- int hFont = 0;
- if (font != null) {
- if (font.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
- hFont = font.handle;
- }
- if (hFont == 0) hFont = defaultFont ();
- OS.SendMessage (handle, OS.WM_SETFONT, hFont, 1);
-}
-
-/**
- * Sets the receiver's foreground color to the color specified
- * by the argument, or to the default system color for the control
- * if the argument is null.
- *
- * @param color the new color (or null)
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public void setForeground (Color color) {
- checkWidget ();
- int pixel = -1;
- if (color != null) {
- if (color.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
- pixel = color.handle;
- }
- setForegroundPixel (pixel);
-}
-
-void setForegroundPixel (int pixel) {
- if (foreground == pixel) return;
- foreground = pixel;
- OS.InvalidateRect (handle, null, true);
-}
-
-/**
- * Sets the layout data associated with the receiver to the argument.
- *
- * @param layoutData the new layout data for the receiver.
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public void setLayoutData (Object layoutData) {
- checkWidget ();
- this.layoutData = layoutData;
-}
-
-/**
- * Sets the receiver's location to the point specified by
- * the arguments which are relative to the receiver's
- * parent (or its display if its parent is null).
- *
- * @param x the new x coordinate for the receiver
- * @param y the new y coordinate for the receiver
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public void setLocation (int x, int y) {
- checkWidget ();
- int flags = OS.SWP_NOSIZE | OS.SWP_NOZORDER | OS.SWP_NOACTIVATE;
- /*
- * Feature in WinCE. The SWP_DRAWFRAME flag for SetWindowPos()
- * causes a WM_SIZE message to be sent even when the SWP_NOSIZE
- * flag is specified. The fix is to set SWP_DRAWFRAME only when
- * not running on WinCE.
- */
- if (!OS.IsWinCE) flags |= OS.SWP_DRAWFRAME;
- setBounds (x, y, 0, 0, flags);
-}
-
-/**
- * Sets the receiver's location to the point specified by
- * the argument which is relative to the receiver's
- * parent (or its display if its parent is null).
- *
- * @param location the new location for the receiver
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public void setLocation (Point location) {
- checkWidget ();
- if (location == null) error (SWT.ERROR_NULL_ARGUMENT);
- setLocation (location.x, location.y);
-}
-
-/**
- * Sets the receiver's pop up menu to the argument.
- * All controls may optionally have a pop up
- * menu that is displayed when the user requests one for
- * the control. The sequence of key strokes, button presses
- * and/or button releases that are used to request a pop up
- * menu is platform specific.
- *
- * @param menu the new pop up menu
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_MENU_NOT_POP_UP - the menu is not a pop up menu</li>
- * <li>ERROR_INVALID_PARENT - if the menu is not in the same widget tree</li>
- * <li>ERROR_INVALID_ARGUMENT - if the menu has been disposed</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public void setMenu (Menu menu) {
- checkWidget ();
- if (menu != null) {
- if (menu.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
- if ((menu.style & SWT.POP_UP) == 0) {
- error (SWT.ERROR_MENU_NOT_POP_UP);
- }
- if (menu.parent != menuShell ()) {
- error (SWT.ERROR_INVALID_PARENT);
- }
- }
- this.menu = menu;
-}
-
-boolean setRadioFocus () {
- return false;
-}
-
-boolean setRadioSelection (boolean value) {
- return false;
-}
-
-/**
- * If the argument is <code>false</code>, causes subsequent drawing
- * operations in the receiver to be ignored. No drawing of any kind
- * can occur in the receiver until the flag is set to true.
- * Graphics operations that occurred while the flag was
- * <code>false</code> are lost. When the flag is set to <code>true</code>,
- * the entire widget is marked as needing to be redrawn.
- * <p>
- * Note: This operation is a hint and may not be supported on some
- * platforms or for some widgets.
- * </p>
- *
- * @param redraw the new redraw state
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see #redraw
- * @see #update
- */
-public void setRedraw (boolean redraw) {
- checkWidget ();
- /*
- * This code is intentionally commented.
- *
- * Feature in Windows. When WM_SETREDRAW is used to turn
- * off drawing in a widget, it clears the WS_VISIBLE bits
- * and then sets them when redraw is turned back on. This
- * means that WM_SETREDRAW will make a widget unexpectedly
- * visible.
- *
- * There is no fix at this time.
- */
-// if (drawCount == 0) {
-// int bits = OS.GetWindowLong (handle, OS.GWL_STYLE);
-// if ((bits & OS.WS_VISIBLE) == 0) return;
-// }
-
- if (redraw) {
- if (--drawCount == 0) {
- OS.SendMessage (handle, OS.WM_SETREDRAW, 1, 0);
- if (OS.IsWinCE) {
- OS.InvalidateRect (handle, null, true);
- } else {
- int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE | OS.RDW_ALLCHILDREN;
- OS.RedrawWindow (handle, null, 0, flags);
- }
- }
- } else {
- if (drawCount++ == 0) {
- OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0);
- }
- }
-}
-
-boolean setSavedFocus () {
- return forceFocus ();
-}
-
-/**
- * Sets the receiver's size to the point specified by the arguments.
- * <p>
- * Note: Attempting to set the width or height of the
- * receiver to a negative number will cause that
- * value to be set to zero instead.
- * </p>
- *
- * @param width the new width for the receiver
- * @param height the new height for the receiver
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public void setSize (int width, int height) {
- checkWidget ();
- int flags = OS.SWP_NOMOVE | OS.SWP_NOZORDER | OS.SWP_DRAWFRAME | OS.SWP_NOACTIVATE;
- setBounds (0, 0, Math.max (0, width), Math.max (0, height), flags);
-}
-
-/**
- * Sets the receiver's size to the point specified by the argument.
- * <p>
- * Note: Attempting to set the width or height of the
- * receiver to a negative number will cause them to be
- * set to zero instead.
- * </p>
- *
- * @param size the new size for the receiver
- * @param height the new height for the receiver
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the point is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public void setSize (Point size) {
- checkWidget ();
- if (size == null) error (SWT.ERROR_NULL_ARGUMENT);
- setSize (size.x, size.y);
-}
-
-boolean setTabGroupFocus () {
- return setTabItemFocus ();
-}
-
-boolean setTabItemFocus () {
- if (!isShowing ()) return false;
- return setFocus ();
-}
-
-/**
- * Sets the receiver's tool tip text to the argument, which
- * may be null indicating that no tool tip text should be shown.
- *
- * @param string the new tool tip text (or null)
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public void setToolTipText (String string) {
- checkWidget ();
- Shell shell = getShell ();
- shell.setToolTipText (handle, toolTipText = string);
-}
-
-/**
- * Marks the receiver as visible if the argument is <code>true</code>,
- * and marks it invisible otherwise.
- * <p>
- * If one of the receiver's ancestors is not visible or some
- * other condition makes the receiver not visible, marking
- * it visible may not actually cause it to be displayed.
- * </p>
- *
- * @param visible the new visibility state
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public void setVisible (boolean visible) {
- checkWidget ();
- int bits = OS.GetWindowLong (handle, OS.GWL_STYLE);
- if (((bits & OS.WS_VISIBLE) != 0) == visible) return;
- if (visible) {
- /*
- * It is possible (but unlikely), that application
- * code could have disposed the widget in the show
- * event. If this happens, just return.
- */
- sendEvent (SWT.Show);
- if (isDisposed ()) return;
- }
-
- /*
- * Feature in Windows. If the receiver has focus, hiding
- * the receiver causes no window to have focus. The fix is
- * to assign focus to the first ancestor window that takes
- * focus. If no window will take focus, set focus to the
- * desktop.
- */
- boolean fixFocus = false;
- if (!visible) fixFocus = isFocusAncestor ();
- OS.ShowWindow (handle, visible ? OS.SW_SHOW : OS.SW_HIDE);
- if (!visible) {
- /*
- * It is possible (but unlikely), that application
- * code could have disposed the widget in the show
- * event. If this happens, just return.
- */
- sendEvent (SWT.Hide);
- if (isDisposed ()) return;
- }
- if (fixFocus) fixFocus ();
-}
-
-void sort (int [] items) {
- /* Shell Sort from K&R, pg 108 */
- int length = items.length;
- for (int gap=length/2; gap>0; gap/=2) {
- for (int i=gap; i<length; i++) {
- for (int j=i-gap; j>=0; j-=gap) {
- if (items [j] <= items [j + gap]) {
- int swap = items [j];
- items [j] = items [j + gap];
- items [j + gap] = swap;
- }
- }
- }
- }
-}
-
-void subclass () {
- int oldProc = windowProc ();
- int newProc = getDisplay ().windowProc;
- if (oldProc == newProc) return;
- OS.SetWindowLong (handle, OS.GWL_WNDPROC, newProc);
-}
-
-/**
- * Returns a point which is the result of converting the
- * argument, which is specified in display relative coordinates,
- * to coordinates relative to the receiver.
- * <p>
- * @param x the x coordinate to be translated
- * @param y the y coordinate to be translated
- * @return the translated coordinates
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @since 2.1
- */
-public Point toControl (int x, int y) {
- checkWidget ();
- POINT pt = new POINT ();
- pt.x = x; pt.y = y;
- OS.ScreenToClient (handle, pt);
- return new Point (pt.x, pt.y);
-}
-
-/**
- * Returns a point which is the result of converting the
- * argument, which is specified in display relative coordinates,
- * to coordinates relative to the receiver.
- * <p>
- * @param point the point to be translated (must not be null)
- * @return the translated coordinates
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the point is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public Point toControl (Point point) {
- checkWidget ();
- if (point == null) error (SWT.ERROR_NULL_ARGUMENT);
- return toControl (point.x, point.y);
-}
-
-/**
- * Returns a point which is the result of converting the
- * argument, which is specified in coordinates relative to
- * the receiver, to display relative coordinates.
- * <p>
- * @param x the x coordinate to be translated
- * @param y the y coordinate to be translated
- * @return the translated coordinates
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @since 2.1
- */
-public Point toDisplay (int x, int y) {
- checkWidget ();
- POINT pt = new POINT ();
- pt.x = x; pt.y = y;
- OS.ClientToScreen (handle, pt);
- return new Point (pt.x, pt.y);
-}
-
-/**
- * Returns a point which is the result of converting the
- * argument, which is specified in coordinates relative to
- * the receiver, to display relative coordinates.
- * <p>
- * @param point the point to be translated (must not be null)
- * @return the translated coordinates
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the point is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public Point toDisplay (Point point) {
- checkWidget ();
- if (point == null) error (SWT.ERROR_NULL_ARGUMENT);
- return toDisplay (point.x, point.y);
-}
-
-boolean translateAccelerator (MSG msg) {
- return menuShell ().translateAccelerator (msg);
-}
-
-boolean translateMnemonic (char key) {
- if (!isVisible () || !isEnabled ()) return false;
- Event event = new Event ();
- event.doit = mnemonicMatch (key);
- event.detail = SWT.TRAVERSE_MNEMONIC;
- Display display = getDisplay ();
- display.lastKey = 0;
- display.lastAscii = key;
- display.lastVirtual = display.lastNull = false;
- if (!setKeyState (event, SWT.Traverse)) {
- return false;
- }
- return traverse (event);
-}
-
-boolean translateMnemonic (MSG msg) {
- int hwnd = msg.hwnd;
- if (OS.GetKeyState (OS.VK_MENU) >= 0) {
- int code = OS.SendMessage (hwnd, OS.WM_GETDLGCODE, 0, 0);
- if ((code & OS.DLGC_WANTALLKEYS) != 0) return false;
- if ((code & OS.DLGC_BUTTON) == 0) return false;
- }
- Decorations shell = menuShell ();
- if (shell.isVisible () && shell.isEnabled ()) {
- char ch = mbcsToWcs ((char) msg.wParam);
- return ch != 0 && shell.translateMnemonic (ch);
- }
- return false;
-}
-
-boolean translateTraversal (MSG msg) {
- int key = msg.wParam;
- if (key == OS.VK_MENU) {
- Shell shell = getShell ();
- int hwndShell = shell.handle;
- OS.SendMessage (hwndShell, OS.WM_CHANGEUISTATE, OS.UIS_INITIALIZE, 0);
- return false;
- }
- int hwnd = msg.hwnd;
- int detail = SWT.TRAVERSE_NONE;
- boolean doit = true, all = false;
- boolean lastVirtual = false;
- int lastKey = key, lastAscii = 0;
- switch (key) {
- case OS.VK_ESCAPE: {
- all = true;
- lastAscii = 27;
- int code = OS.SendMessage (hwnd, OS.WM_GETDLGCODE, 0, 0);
- if ((code & OS.DLGC_WANTALLKEYS) != 0) {
- /*
- * Use DLGC_HASSETSEL to determine that the control
- * is a text widget. A text widget normally wants
- * all keys except VK_ESCAPE. If this bit is not
- * set, then assume the control wants all keys,
- * including VK_ESCAPE.
- */
- if ((code & OS.DLGC_HASSETSEL) == 0) doit = false;
- }
- detail = SWT.TRAVERSE_ESCAPE;
- break;
- }
- case OS.VK_RETURN: {
- all = true;
- lastAscii = '\r';
- int code = OS.SendMessage (hwnd, OS.WM_GETDLGCODE, 0, 0);
- if ((code & OS.DLGC_WANTALLKEYS) != 0) doit = false;
- detail = SWT.TRAVERSE_RETURN;
- break;
- }
- case OS.VK_TAB: {
- /*
- * NOTE: This code causes Shift+Tab and Ctrl+Tab to
- * always attempt traversal which is not correct.
- * The default should be the same as a plain Tab key.
- * This behavior is currently relied on by StyledText.
- *
- * The correct behavior is to give every key to a
- * control that answers DLGC_WANTALLKEYS.
- */
- lastAscii = '\t';
- boolean next = OS.GetKeyState (OS.VK_SHIFT) >= 0;
- int code = OS.SendMessage (hwnd, OS.WM_GETDLGCODE, 0, 0);
- if ((code & (OS.DLGC_WANTTAB | OS.DLGC_WANTALLKEYS)) != 0) {
- if (next && OS.GetKeyState (OS.VK_CONTROL) >= 0) doit = false;
- }
- detail = next ? SWT.TRAVERSE_TAB_NEXT : SWT.TRAVERSE_TAB_PREVIOUS;
- break;
- }
- case OS.VK_UP:
- case OS.VK_LEFT:
- case OS.VK_DOWN:
- case OS.VK_RIGHT: {
- /*
- * On WinCE SP there is no tab key. Focus is assigned
- * using only the VK_UP and VK_DOWN keys, not with VK_LEFT
- * or VK_RIGHT. */
- if (OS.IsSP) {
- if (key == OS.VK_LEFT || key == OS.VK_RIGHT) return false;
- }
- lastVirtual = true;
- int code = OS.SendMessage (hwnd, OS.WM_GETDLGCODE, 0, 0);
- if ((code & (OS.DLGC_WANTARROWS /*| OS.DLGC_WANTALLKEYS*/)) != 0) doit = false;
- boolean next = key == OS.VK_DOWN || key == OS.VK_RIGHT;
- detail = next ? SWT.TRAVERSE_ARROW_NEXT : SWT.TRAVERSE_ARROW_PREVIOUS;
- break;
- }
- case OS.VK_PRIOR:
- case OS.VK_NEXT: {
- all = true;
- lastVirtual = true;
- if (OS.GetKeyState (OS.VK_CONTROL) >= 0) return false;
- /*
- * The fact that this code is commented causes Ctrl+PgUp
- * and Ctrl+PgDn to always attempt traversal which is not
- * correct. This behavior is relied on by StyledText.
- *
- * The correct behavior is to give every key to a control
- * that answers DLGC_WANTALLKEYS.
- */
-// int code = OS.SendMessage (hwnd, OS., 0, 0);
-// if ((code & OS.DLGC_WANTALLKEYS) != 0) doit = false;
- detail = key == OS.VK_PRIOR ? SWT.TRAVERSE_PAGE_PREVIOUS : SWT.TRAVERSE_PAGE_NEXT;
- break;
- }
- default:
- return false;
- }
- Event event = new Event ();
- event.doit = doit;
- event.detail = detail;
- Display display = getDisplay ();
- display.lastKey = lastKey;
- display.lastAscii = lastAscii;
- display.lastVirtual = lastVirtual;
- display.lastNull = false;
- if (!setKeyState (event, SWT.Traverse)) {
- return false;
- }
- Shell shell = getShell ();
- Control control = this;
- do {
- if (control.traverse (event)) {
- int hwndShell = shell.handle;
- OS.SendMessage (hwndShell, OS.WM_CHANGEUISTATE, OS.UIS_INITIALIZE, 0);
- return true;
- }
- if (!event.doit && control.hooks (SWT.Traverse)) {
- return false;
- }
- if (control == shell) return false;
- control = control.parent;
- } while (all && control != null);
- return false;
-}
-
-boolean traverse (Event event) {
- /*
- * It is possible (but unlikely), that application
- * code could have disposed the widget in the traverse
- * event. If this happens, return true to stop further
- * event processing.
- */
- sendEvent (SWT.Traverse, event);
- if (isDisposed ()) return false;
- if (!event.doit) return false;
- switch (event.detail) {
- case SWT.TRAVERSE_NONE: return true;
- case SWT.TRAVERSE_ESCAPE: return traverseEscape ();
- case SWT.TRAVERSE_RETURN: return traverseReturn ();
- case SWT.TRAVERSE_TAB_NEXT: return traverseGroup (true);
- case SWT.TRAVERSE_TAB_PREVIOUS: return traverseGroup (false);
- case SWT.TRAVERSE_ARROW_NEXT: return traverseItem (true);
- case SWT.TRAVERSE_ARROW_PREVIOUS: return traverseItem (false);
- case SWT.TRAVERSE_MNEMONIC: return traverseMnemonic (event.character);
- case SWT.TRAVERSE_PAGE_NEXT: return traversePage (true);
- case SWT.TRAVERSE_PAGE_PREVIOUS: return traversePage (false);
- }
- return false;
-}
-
-/**
- * Based on the argument, perform one of the expected platform
- * traversal action. The argument should be one of the constants:
- * <code>SWT.TRAVERSE_ESCAPE</code>, <code>SWT.TRAVERSE_RETURN</code>,
- * <code>SWT.TRAVERSE_TAB_NEXT</code>, <code>SWT.TRAVERSE_TAB_PREVIOUS</code>,
- * <code>SWT.TRAVERSE_ARROW_NEXT</code> and <code>SWT.TRAVERSE_ARROW_PREVIOUS</code>.
- *
- * @param traversal the type of traversal
- * @return true if the traversal succeeded
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public boolean traverse (int traversal) {
- checkWidget ();
- if (!isFocusControl () && !setFocus ()) return false;
- Event event = new Event ();
- event.doit = true;
- event.detail = traversal;
- return traverse (event);
-}
-
-boolean traverseEscape () {
- return false;
-}
-
-boolean traverseGroup (boolean next) {
- Control root = computeTabRoot ();
- Control group = computeTabGroup ();
- Control [] list = root.computeTabList ();
- int length = list.length;
- int index = 0;
- while (index < length) {
- if (list [index] == group) break;
- index++;
- }
- /*
- * It is possible (but unlikely), that application
- * code could have disposed the widget in focus in
- * or out events. Ensure that a disposed widget is
- * not accessed.
- */
- if (index == length) return false;
- int start = index, offset = (next) ? 1 : -1;
- while ((index = ((index + offset + length) % length)) != start) {
- Control control = list [index];
- if (!control.isDisposed () && control.setTabGroupFocus ()) {
- if (!isDisposed () && !isFocusControl ()) return true;
- }
- }
- if (group.isDisposed ()) return false;
- return group.setTabGroupFocus ();
-}
-
-boolean traverseItem (boolean next) {
- Control [] children = parent._getChildren ();
- int length = children.length;
- int index = 0;
- while (index < length) {
- if (children [index] == this) break;
- index++;
- }
- /*
- * It is possible (but unlikely), that application
- * code could have disposed the widget in focus in
- * or out events. Ensure that a disposed widget is
- * not accessed.
- */
- int start = index, offset = (next) ? 1 : -1;
- while ((index = (index + offset + length) % length) != start) {
- Control child = children [index];
- if (!child.isDisposed () && child.isTabItem ()) {
- if (child.setTabItemFocus ()) return true;
- }
- }
- return false;
-}
-
-boolean traverseMnemonic (char key) {
- return mnemonicHit (key);
-}
-
-boolean traversePage (boolean next) {
- return false;
-}
-
-boolean traverseReturn () {
- return false;
-}
-
-void unsubclass () {
- int newProc = windowProc ();
- int oldProc = getDisplay ().windowProc;
- if (oldProc == newProc) return;
- OS.SetWindowLong (handle, OS.GWL_WNDPROC, newProc);
-}
-
-/**
- * Forces all outstanding paint requests for the widget
- * to be processed before this method returns.
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see #redraw
- */
-public void update () {
- checkWidget ();
- update (false);
-}
-
-void update (boolean all) {
-// checkWidget ();
- if (OS.IsWinCE) {
- OS.UpdateWindow (handle);
- } else {
- int flags = OS.RDW_UPDATENOW;
- if (all) flags |= OS.RDW_ALLCHILDREN;
- OS.RedrawWindow (handle, null, 0, flags);
- }
-}
-
-void updateFont (Font oldFont, Font newFont) {
- Font font = getFont ();
- if (font.equals (oldFont)) setFont (newFont);
-}
-
-int widgetExtStyle () {
- int bits = 0;
- if ((style & SWT.BORDER) != 0) bits |= OS.WS_EX_CLIENTEDGE;
- /*
- * Feature in Windows NT. When CreateWindowEx() is called with
- * WS_EX_LAYOUTRTL or WS_EX_NOINHERITLAYOUT, CreateWindowEx()
- * fails to create the HWND. The fix is to not use these bits.
- */
- if ((OS.WIN32_MAJOR << 16 | OS.WIN32_MINOR) < (4 << 16 | 10)) {
- return bits;
- }
- bits |= OS.WS_EX_NOINHERITLAYOUT;
- if ((style & SWT.RIGHT_TO_LEFT) != 0) bits |= OS.WS_EX_LAYOUTRTL;
- return bits;
-}
-
-int widgetStyle () {
- /* Force clipping of siblings by setting WS_CLIPSIBLINGS */
- return OS.WS_CHILD | OS.WS_VISIBLE | OS.WS_CLIPSIBLINGS;
-
- /*
- * This code is intentionally commented. When clipping
- * of both siblings and children is not enforced, it is
- * possible for application code to draw outside of the
- * control.
- */
-// int bits = OS.WS_CHILD | OS.WS_VISIBLE;
-// if ((style & SWT.CLIP_SIBLINGS) != 0) bits |= OS.WS_CLIPSIBLINGS;
-// if ((style & SWT.CLIP_CHILDREN) != 0) bits |= OS.WS_CLIPCHILDREN;
-// return bits;
-}
-
-/**
- * Changes the parent of the widget to be the one provided if
- * the underlying operating system supports this feature.
- * Answers <code>true</code> if the parent is successfully changed.
- *
- * @param parent the new parent for the control.
- * @return <code>true</code> if the parent is changed and <code>false</code> otherwise.
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
- * </ul>
- * @exception SWTError <ul>
- * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
- * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
- * </ul>
- */
-public boolean setParent (Composite parent) {
- checkWidget ();
- if (parent == null) error (SWT.ERROR_NULL_ARGUMENT);
- if (parent.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
- if (OS.SetParent (handle, parent.handle) == 0) {
- return false;
- }
- this.parent = parent;
- return true;
-}
-
-abstract TCHAR windowClass ();
-
-abstract int windowProc ();
-
-int windowProc (int msg, int wParam, int lParam) {
- LRESULT result = null;
- switch (msg) {
- case OS.WM_ACTIVATE: result = WM_ACTIVATE (wParam, lParam); break;
- case OS.WM_CHAR: result = WM_CHAR (wParam, lParam); break;
- case OS.WM_CLEAR: result = WM_CLEAR (wParam, lParam); break;
- case OS.WM_CLOSE: result = WM_CLOSE (wParam, lParam); break;
- case OS.WM_COMMAND: result = WM_COMMAND (wParam, lParam); break;
- case OS.WM_CONTEXTMENU: result = WM_CONTEXTMENU (wParam, lParam); break;
- case OS.WM_CTLCOLORBTN:
- case OS.WM_CTLCOLORDLG:
- case OS.WM_CTLCOLOREDIT:
- case OS.WM_CTLCOLORLISTBOX:
- case OS.WM_CTLCOLORMSGBOX:
- case OS.WM_CTLCOLORSCROLLBAR:
- case OS.WM_CTLCOLORSTATIC: result = WM_CTLCOLOR (wParam, lParam); break;
- case OS.WM_CUT: result = WM_CUT (wParam, lParam); break;
- case OS.WM_DESTROY: result = WM_DESTROY (wParam, lParam); break;
- case OS.WM_DRAWITEM: result = WM_DRAWITEM (wParam, lParam); break;
- case OS.WM_ENDSESSION: result = WM_ENDSESSION (wParam, lParam); break;
- case OS.WM_ERASEBKGND: result = WM_ERASEBKGND (wParam, lParam); break;
- case OS.WM_GETDLGCODE: result = WM_GETDLGCODE (wParam, lParam); break;
- case OS.WM_HELP: result = WM_HELP (wParam, lParam); break;
- case OS.WM_HSCROLL: result = WM_HSCROLL (wParam, lParam); break;
- case OS.WM_IME_CHAR: result = WM_IME_CHAR (wParam, lParam); break;
- case OS.WM_IME_COMPOSITION: result = WM_IME_COMPOSITION (wParam, lParam); break;
- case OS.WM_INITMENUPOPUP: result = WM_INITMENUPOPUP (wParam, lParam); break;
- case OS.WM_GETFONT: result = WM_GETFONT (wParam, lParam); break;
- case OS.WM_GETOBJECT: result = WM_GETOBJECT (wParam, lParam); break;
- case OS.WM_HOTKEY: result = WM_HOTKEY (wParam, lParam); break;
- case OS.WM_KEYDOWN: result = WM_KEYDOWN (wParam, lParam); break;
- case OS.WM_KEYUP: result = WM_KEYUP (wParam, lParam); break;
- case OS.WM_KILLFOCUS: result = WM_KILLFOCUS (wParam, lParam); break;
- case OS.WM_LBUTTONDBLCLK: result = WM_LBUTTONDBLCLK (wParam, lParam); break;
- case OS.WM_LBUTTONDOWN: result = WM_LBUTTONDOWN (wParam, lParam); break;
- case OS.WM_LBUTTONUP: result = WM_LBUTTONUP (wParam, lParam); break;
- case OS.WM_MBUTTONDBLCLK: result = WM_MBUTTONDBLCLK (wParam, lParam); break;
- case OS.WM_MBUTTONDOWN: result = WM_MBUTTONDOWN (wParam, lParam); break;
- case OS.WM_MBUTTONUP: result = WM_MBUTTONUP (wParam, lParam); break;
- case OS.WM_MEASUREITEM: result = WM_MEASUREITEM (wParam, lParam); break;
- case OS.WM_MENUCHAR: result = WM_MENUCHAR (wParam, lParam); break;
- case OS.WM_MENUSELECT: result = WM_MENUSELECT (wParam, lParam); break;
- case OS.WM_MOUSEACTIVATE: result = WM_MOUSEACTIVATE (wParam, lParam); break;
- case OS.WM_MOUSEHOVER: result = WM_MOUSEHOVER (wParam, lParam); break;
- case OS.WM_MOUSELEAVE: result = WM_MOUSELEAVE (wParam, lParam); break;
- case OS.WM_MOUSEMOVE: result = WM_MOUSEMOVE (wParam, lParam); break;
- case OS.WM_MOUSEWHEEL: result = WM_MOUSEWHEEL (wParam, lParam); break;
- case OS.WM_MOVE: result = WM_MOVE (wParam, lParam); break;
- case OS.WM_NCACTIVATE: result = WM_NCACTIVATE (wParam, lParam); break;
- case OS.WM_NCCALCSIZE: result = WM_NCCALCSIZE (wParam, lParam); break;
- case OS.WM_NCHITTEST: result = WM_NCHITTEST (wParam, lParam); break;
- case OS.WM_NOTIFY: result = WM_NOTIFY (wParam, lParam); break;
- case OS.WM_PAINT: result = WM_PAINT (wParam, lParam); break;
- case OS.WM_PALETTECHANGED: result = WM_PALETTECHANGED (wParam, lParam); break;
- case OS.WM_PASTE: result = WM_PASTE (wParam, lParam); break;
- case OS.WM_PRINTCLIENT: result = WM_PRINTCLIENT (wParam, lParam); break;
- case OS.WM_QUERYENDSESSION: result = WM_QUERYENDSESSION (wParam, lParam); break;
- case OS.WM_QUERYNEWPALETTE: result = WM_QUERYNEWPALETTE (wParam, lParam); break;
- case OS.WM_QUERYOPEN: result = WM_QUERYOPEN (wParam, lParam); break;
- case OS.WM_RBUTTONDBLCLK: result = WM_RBUTTONDBLCLK (wParam, lParam); break;
- case OS.WM_RBUTTONDOWN: result = WM_RBUTTONDOWN (wParam, lParam); break;
- case OS.WM_RBUTTONUP: result = WM_RBUTTONUP (wParam, lParam); break;
- case OS.WM_SETCURSOR: result = WM_SETCURSOR (wParam, lParam); break;
- case OS.WM_SETFOCUS: result = WM_SETFOCUS (wParam, lParam); break;
- case OS.WM_SETFONT: result = WM_SETFONT (wParam, lParam); break;
- case OS.WM_SETTINGCHANGE: result = WM_SETTINGCHANGE (wParam, lParam); break;
- case OS.WM_SETREDRAW: result = WM_SETREDRAW (wParam, lParam); break;
- case OS.WM_SHOWWINDOW: result = WM_SHOWWINDOW (wParam, lParam); break;
- case OS.WM_SIZE: result = WM_SIZE (wParam, lParam); break;
- case OS.WM_SYSCHAR: result = WM_SYSCHAR (wParam, lParam); break;
- case OS.WM_SYSCOLORCHANGE: result = WM_SYSCOLORCHANGE (wParam, lParam); break;
- case OS.WM_SYSCOMMAND: result = WM_SYSCOMMAND (wParam, lParam); break;
- case OS.WM_SYSKEYDOWN: result = WM_SYSKEYDOWN (wParam, lParam); break;
- case OS.WM_SYSKEYUP: result = WM_SYSKEYUP (wParam, lParam); break;
- case OS.WM_TIMER: result = WM_TIMER (wParam, lParam); break;
- case OS.WM_UNDO: result = WM_UNDO (wParam, lParam); break;
- case OS.WM_VSCROLL: result = WM_VSCROLL (wParam, lParam); break;
- case OS.WM_WINDOWPOSCHANGING: result = WM_WINDOWPOSCHANGING (wParam, lParam); break;
- }
- if (result != null) return result.value;
- return callWindowProc (msg, wParam, lParam);
-}
-
-LRESULT WM_ACTIVATE (int wParam, int lParam) {
- return null;
-}
-
-LRESULT WM_CHAR (int wParam, int lParam) {
-
- /*
- * Do not report a lead byte as a key pressed.
- */
- Display display = getDisplay ();
- if (!OS.IsUnicode && OS.IsDBLocale) {
- byte lead = (byte) (wParam & 0xFF);
- if (OS.IsDBCSLeadByte (lead)) return null;
- }
-
- /*
- * Use VkKeyScan () to tell us if the character is a control
- * or a numeric key pad character with Num Lock down. On
- * international keyboards, the control key may be down when
- * the character is not a control character. In this case
- * use the last key (computed in WM_KEYDOWN) instead of wParam
- * as the keycode because there is not enough information to
- * compute the keycode in WPARAM.
- */
- display.lastAscii = wParam;
- display.lastNull = false;
- if (display.lastKey == 0) {
- display.lastKey = wParam;
- display.lastVirtual = display.isVirtualKey (wParam);
- } else {
- int result = OS.IsWinCE ? 0 : OS.VkKeyScan ((short) wParam);
- if (!OS.IsWinCE && (result == -1 || (result >> 8) <= 2)) {
- if (OS.GetKeyState (OS.VK_CONTROL) < 0) {
- display.lastVirtual = display.isVirtualKey (display.lastKey);
- }
- } else {
- display.lastKey = wParam;
- display.lastVirtual = false;
- }
- }
- if (!sendKeyEvent (SWT.KeyDown, OS.WM_CHAR, wParam, lParam)) {
- return LRESULT.ZERO;
- }
- return null;
-}
-
-LRESULT WM_CLEAR (int wParam, int lParam) {
- return null;
-}
-
-LRESULT WM_CLOSE (int wParam, int lParam) {
- return null;
-}
-
-LRESULT WM_COMMAND (int wParam, int lParam) {
- /*
- * When the WM_COMMAND message is sent from a
- * menu, the HWND parameter in LPARAM is zero.
- */
- if (lParam == 0) {
- Decorations shell = menuShell ();
- if (shell.isEnabled ()) {
- int id = wParam & 0xFFFF;
- MenuItem item = shell.findMenuItem (id);
- if (item != null && item.isEnabled ()) {
- return item.wmCommandChild (wParam, lParam);
- }
- }
- return null;
- }
- Control control = WidgetTable.get (lParam);
- if (control == null) return null;
- return control.wmCommandChild (wParam, lParam);
-}
-
-LRESULT WM_CONTEXTMENU (int wParam, int lParam) {
- if (wParam != handle) return null;
-
- /*
- * Feature in Windows. When the user presses WM_NCRBUTTONUP,
- * a WM_CONTEXTMENU message is generated. This happens when
- * the user releases the mouse over a scroll bar. Normally,
- * window displays the default scrolling menu but applications
- * can process WM_CONTEXTMENU to display a different menu.
- * Typically, an application does not want to supply a special
- * scroll menu. The fix is to look for a WM_CONTEXTMENU that
- * originated from a mouse event and display the menu when the
- * mouse was released in the client area.
- */
- POINT pt = new POINT ();
- pt.x = (short) (lParam & 0xFFFF);
- pt.y = (short) (lParam >> 16);
- if (pt.x != -1 || pt.y != -1) {
- RECT rect = new RECT ();
- OS.GetClientRect (handle, rect);
- OS.ScreenToClient (handle, pt);
- if (!OS.PtInRect (rect, pt)) return null;
- }
-
- /*
- * Because context menus can be shared between controls
- * and the parent of all menus is the shell, the menu may
- * have been destroyed.
- */
- if (menu != null && !menu.isDisposed ()) {
-// menu.setLocation (x, y);
- menu.setVisible (true);
- return LRESULT.ZERO;
- }
- return null;
-}
-
-LRESULT WM_CTLCOLOR (int wParam, int lParam) {
- Display display = getDisplay ();
- int hPalette = display.hPalette;
- if (hPalette != 0) {
- OS.SelectPalette (wParam, hPalette, false);
- OS.RealizePalette (wParam);
- }
- Control control = WidgetTable.get (lParam);
- if (control == null) return null;
- return control.wmColorChild (wParam, lParam);
-}
-
-LRESULT WM_CUT (int wParam, int lParam) {
- return null;
-}
-
-LRESULT WM_DESTROY (int wParam, int lParam) {
- return null;
-}
-
-LRESULT WM_DRAWITEM (int wParam, int lParam) {
- DRAWITEMSTRUCT struct = new DRAWITEMSTRUCT ();
- OS.MoveMemory (struct, lParam, DRAWITEMSTRUCT.sizeof);
- if (struct.CtlType == OS.ODT_MENU) {
- Decorations shell = menuShell ();
- MenuItem item = shell.findMenuItem (struct.itemID);
- if (item == null) return null;
- return item.wmDrawChild (wParam, lParam);
- }
- Control control = WidgetTable.get (struct.hwndItem);
- if (control == null) return null;
- return control.wmDrawChild (wParam, lParam);
-}
-
-LRESULT WM_ENDSESSION (int wParam, int lParam) {
- return null;
-}
-
-LRESULT WM_ERASEBKGND (int wParam, int lParam) {
- return null;
-}
-
-LRESULT WM_GETDLGCODE (int wParam, int lParam) {
- return null;
-}
-
-LRESULT WM_GETFONT (int wParam, int lParam) {
- return null;
-}
-
-LRESULT WM_GETOBJECT (int wParam, int lParam) {
- if (accessible != null) {
- int result = accessible.internal_WM_GETOBJECT (wParam, lParam);
- if (result != 0) return new LRESULT (result);
- }
- return null;
-}
-
-LRESULT WM_HOTKEY (int wParam, int lParam) {
- return null;
-}
-
-LRESULT WM_HELP (int wParam, int lParam) {
- if (OS.IsWinCE) return null;
- HELPINFO lphi = new HELPINFO ();
- OS.MoveMemory (lphi, lParam, HELPINFO.sizeof);
- Decorations shell = menuShell ();
- if (!shell.isEnabled ()) return null;
- if (lphi.iContextType == OS.HELPINFO_MENUITEM) {
- MenuItem item = shell.findMenuItem (lphi.iCtrlId);
- if (item != null && item.isEnabled ()) {
- Widget widget = null;
- if (item.hooks (SWT.Help)) {
- widget = item;
- } else {
- Menu menu = item.parent;
- if (menu.hooks (SWT.Help)) widget = menu;
- }
- if (widget != null) {
- int hwndShell = shell.handle;
- OS.SendMessage (hwndShell, OS.WM_CANCELMODE, 0, 0);
- widget.postEvent (SWT.Help);
- return LRESULT.ONE;
- }
- }
- return null;
- }
- if (hooks (SWT.Help)) {
- postEvent (SWT.Help);
- return LRESULT.ONE;
- }
- return null;
-}
-
-LRESULT WM_HSCROLL (int wParam, int lParam) {
- if (lParam == 0) return null;
- Control control = WidgetTable.get (lParam);
- if (control == null) return null;
- return control.wmScrollChild (wParam, lParam);
-}
-
-LRESULT WM_IME_CHAR (int wParam, int lParam) {
- Display display = getDisplay ();
- display.lastKey = 0;
- display.lastAscii = wParam;
- display.lastVirtual = display.lastNull = false;
- sendKeyEvent (SWT.KeyDown, OS.WM_IME_CHAR, wParam, lParam);
- sendKeyEvent (SWT.KeyUp, OS.WM_IME_CHAR, wParam, lParam);
- display.lastKey = display.lastAscii = 0;
- return LRESULT.ZERO;
-}
-
-LRESULT WM_IME_COMPOSITION (int wParam, int lParam) {
- return null;
-}
-
-LRESULT WM_INITMENUPOPUP (int wParam, int lParam) {
-
- /* Ignore WM_INITMENUPOPUP for an accelerator */
- Display display = getDisplay ();
- if (display.accelKeyHit) return null;
-
- /*
- * If the high order word of LPARAM is non-zero,
- * the menu is the system menu and we can ignore
- * WPARAM. Otherwise, use WPARAM to find the menu.
- */
- Shell shell = getShell ();
- Menu oldMenu = shell.activeMenu, newMenu = null;
- if ((lParam >> 16) == 0) {
- newMenu = menuShell ().findMenu (wParam);
- }
- Menu menu = newMenu;
- while (menu != null && menu != oldMenu) {
- menu = menu.getParentMenu ();
- }
- if (menu == null) {
- menu = shell.activeMenu;
- while (menu != null) {
- /*
- * It is possible (but unlikely), that application
- * code could have disposed the widget in the hide
- * event. If this happens, stop searching up the
- * ancestor list because there is no longer a link
- * to follow.
- */
- menu.sendEvent (SWT.Hide);
- if (menu.isDisposed ()) break;
- menu = menu.getParentMenu ();
- Menu ancestor = newMenu;
- while (ancestor != null && ancestor != menu) {
- ancestor = ancestor.getParentMenu ();
- }
- if (ancestor != null) break;
- }
- }
-
- /*
- * The shell and the new menu may be disposed because of
- * sending the hide event to the ancestor menus but setting
- * a field to null in a disposed shell is not harmful.
- */
- if (newMenu != null && newMenu.isDisposed ()) newMenu = null;
- shell.activeMenu = newMenu;
-
- /*
- * Send the show event
- */
- if (newMenu != null && newMenu != oldMenu) {
- /*
- * SWT.Selection events are posted to allow stepping
- * in the VA/Java debugger. SWT.Show events are
- * sent to ensure that application event handler
- * code runs before the menu is displayed. This
- * means that SWT.Show events would normally occur
- * before SWT.Selection events. While this is not
- * strictly incorrect, applications often use the
- * SWT.Selection event to update the state of menu
- * items and would like the ordering of events to
- * be the other way around.
- *
- * The fix is to run the deferred events before
- * the menu is shown. This means that stepping
- * through a selection event that was caused by
- * a popup menu will fail in VA/Java.
- */
- display.runDeferredEvents ();
- newMenu.sendEvent (SWT.Show);
- // widget could be disposed at this point
- }
- return null;
-}
-
-LRESULT WM_KEYDOWN (int wParam, int lParam) {
-
- /* Ignore repeating modifier keys by testing key down state */
- switch (wParam) {
- case OS.VK_SHIFT:
- case OS.VK_MENU:
- case OS.VK_CONTROL:
- case OS.VK_CAPITAL:
- case OS.VK_NUMLOCK:
- case OS.VK_SCROLL:
- if ((lParam & 0x40000000) != 0) return null;
- }
-
- /* Clear last key and last ascii because a new key has been typed */
- Display display = getDisplay ();
- display.lastAscii = display.lastKey = 0;
- display.lastVirtual = display.lastNull = false;
-
- /*
- * Do not report a lead byte as a key pressed.
- */
- if (!OS.IsUnicode && OS.IsDBLocale) {
- byte lead = (byte) (wParam & 0xFF);
- if (OS.IsDBCSLeadByte (lead)) return null;
- }
-
- /* Map the virtual key */
- /*
- * Bug on WinCE. MapVirtualKey() returns incorrect values.
- * The fix is to rely on a key mappings table to determine
- * whether the key event must be sent now or if a WM_CHAR
- * event will follow.
- */
- int mapKey = OS.IsWinCE ? 0 : OS.MapVirtualKey (wParam, 2);
-
- /*
- * Bug in Windows 95 and NT. When the user types an accent key such
- * as ^ to get an accented character on a German keyboard, the accent
- * key should be ignored and the next key that the user types is the
- * accented key. On Windows 95 and NT, a call to ToAscii (), clears the
- * accented state such that the next WM_CHAR loses the accent. The fix
- * is to detect the accent key stroke (called a dead key) by testing the
- * high bit of the value returned by MapVirtualKey (). A further problem
- * is that the high bit on Windows NT is bit 32 while the high bit on
- * Windows 95 is bit 16. They should both be bit 32.
- *
- * NOTE: This code is used to avoid a call to ToAscii ().
- */
- if (OS.IsWinNT) {
- if ((mapKey & 0x80000000) != 0) return null;
- } else {
- if ((mapKey & 0x8000) != 0) return null;
- }
-
- /*
- * Bug in Windows. When the accent key is generated on an international
- * keyboard using Ctrl+Alt or the special key, MapVirtualKey () does not
- * have the high bit set indicating that this is an accent key stroke.
- * The fix is to iterate through all known accent, mapping them back to
- * their corresponding virtual key and key state. If the virtual key
- * and key state match the current key, then this is an accent that has
- * been generated using an international keyboard and calling ToAscii ()
- * will clear the accent state.
- *
- * NOTE: This code is used to avoid a call to ToAscii ().
- */
- if (!OS.IsWinCE) {
+ * http://www.eclipse.org/legal/cpl-v10.html
+ */
+
+import org.eclipse.swt.internal.win32.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.*;
+import org.eclipse.swt.events.*;
+import org.eclipse.swt.accessibility.*;
+
+/**
+ * Control is the abstract superclass of all windowed user interface classes.
+ * <p>
+ * <dl>
+ * <dt><b>Styles:</b>
+ * <dd>BORDER</dd>
+ * <dd>LEFT_TO_RIGHT, RIGHT_TO_LEFT</dd>
+ * <dt><b>Events:</b>
+ * <dd>FocusIn, FocusOut, Help, KeyDown, KeyUp, MouseDoubleClick, MouseDown, MouseEnter,
+ * MouseExit, MouseHover, MouseUp, MouseMove, Move, Paint, Resize</dd>
+ * </dl>
+ * <p>
+ * Only one of LEFT_TO_RIGHT or RIGHT_TO_LEFT may be specified.
+ * </p><p>
+ * IMPORTANT: This class is intended to be subclassed <em>only</em>
+ * within the SWT implementation.
+ * </p>
+ *
+ * Note: Only one of LEFT_TO_RIGHT and RIGHT_TO_LEFT may be specified.
+ */
+
+public abstract class Control extends Widget implements Drawable {
+ /**
+ * the handle to the OS resource
+ * (Warning: This field is platform dependent)
+ */
+ public int handle;
+
+ Composite parent;
+ int drawCount, hCursor;
+ int foreground, background;
+ Menu menu;
+ String toolTipText;
+ Object layoutData;
+ Accessible accessible;
+
+ static final short [] ACCENTS = new short [] {'~', '`', '\'', '^', '"'};
+
+/**
+ * Prevents uninitialized instances from being created outside the package.
+ */
+Control () {
+}
+
+/**
+ * Constructs a new instance of this class given its parent
+ * and a style value describing its behavior and appearance.
+ * <p>
+ * The style value is either one of the style constants defined in
+ * class <code>SWT</code> which is applicable to instances of this
+ * class, or must be built by <em>bitwise OR</em>'ing together
+ * (that is, using the <code>int</code> "|" operator) two or more
+ * of those <code>SWT</code> style constants. The class description
+ * lists the style constants that are applicable to the class.
+ * Style bits are also inherited from superclasses.
+ * </p>
+ *
+ * @param parent a composite control which will be the parent of the new instance (cannot be null)
+ * @param style the style of control to construct
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
+ * </ul>
+ *
+ * @see SWT#BORDER
+ * @see Widget#checkSubclass
+ * @see Widget#getStyle
+ */
+public Control (Composite parent, int style) {
+ super (parent, style);
+ this.parent = parent;
+ createWidget ();
+}
+
+/**
+ * Adds the listener to the collection of listeners who will
+ * be notified when the control is moved or resized, by sending
+ * it one of the messages defined in the <code>ControlListener</code>
+ * interface.
+ *
+ * @param listener the listener which should be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see ControlListener
+ * @see #removeControlListener
+ */
+public void addControlListener(ControlListener listener) {
+ checkWidget ();
+ if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
+ TypedListener typedListener = new TypedListener (listener);
+ addListener (SWT.Resize,typedListener);
+ addListener (SWT.Move,typedListener);
+}
+
+/**
+ * Adds the listener to the collection of listeners who will
+ * be notified when the control gains or loses focus, by sending
+ * it one of the messages defined in the <code>FocusListener</code>
+ * interface.
+ *
+ * @param listener the listener which should be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see FocusListener
+ * @see #removeFocusListener
+ */
+public void addFocusListener (FocusListener listener) {
+ checkWidget ();
+ if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
+ TypedListener typedListener = new TypedListener (listener);
+ addListener (SWT.FocusIn,typedListener);
+ addListener (SWT.FocusOut,typedListener);
+}
+
+/**
+ * Adds the listener to the collection of listeners who will
+ * be notified when help events are generated for the control,
+ * by sending it one of the messages defined in the
+ * <code>HelpListener</code> interface.
+ *
+ * @param listener the listener which should be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see HelpListener
+ * @see #removeHelpListener
+ */
+public void addHelpListener (HelpListener listener) {
+ checkWidget ();
+ if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
+ TypedListener typedListener = new TypedListener (listener);
+ addListener (SWT.Help, typedListener);
+}
+
+/**
+ * Adds the listener to the collection of listeners who will
+ * be notified when keys are pressed and released on the system keyboard, by sending
+ * it one of the messages defined in the <code>KeyListener</code>
+ * interface.
+ *
+ * @param listener the listener which should be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see KeyListener
+ * @see #removeKeyListener
+ */
+public void addKeyListener (KeyListener listener) {
+ checkWidget ();
+ if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
+ TypedListener typedListener = new TypedListener (listener);
+ addListener (SWT.KeyUp,typedListener);
+ addListener (SWT.KeyDown,typedListener);
+}
+
+/**
+ * Adds the listener to the collection of listeners who will
+ * be notified when mouse buttons are pressed and released, by sending
+ * it one of the messages defined in the <code>MouseListener</code>
+ * interface.
+ *
+ * @param listener the listener which should be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see MouseListener
+ * @see #removeMouseListener
+ */
+public void addMouseListener (MouseListener listener) {
+ checkWidget ();
+ if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
+ TypedListener typedListener = new TypedListener (listener);
+ addListener (SWT.MouseDown,typedListener);
+ addListener (SWT.MouseUp,typedListener);
+ addListener (SWT.MouseDoubleClick,typedListener);
+}
+
+/**
+ * Adds the listener to the collection of listeners who will
+ * be notified when the mouse passes or hovers over controls, by sending
+ * it one of the messages defined in the <code>MouseTrackListener</code>
+ * interface.
+ *
+ * @param listener the listener which should be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see MouseTrackListener
+ * @see #removeMouseTrackListener
+ */
+public void addMouseTrackListener (MouseTrackListener listener) {
+ checkWidget ();
+ if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
+ TypedListener typedListener = new TypedListener (listener);
+ addListener (SWT.MouseEnter,typedListener);
+ addListener (SWT.MouseExit,typedListener);
+ addListener (SWT.MouseHover,typedListener);
+}
+
+/**
+ * Adds the listener to the collection of listeners who will
+ * be notified when the mouse moves, by sending it one of the
+ * messages defined in the <code>MouseMoveListener</code>
+ * interface.
+ *
+ * @param listener the listener which should be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see MouseMoveListener
+ * @see #removeMouseMoveListener
+ */
+public void addMouseMoveListener (MouseMoveListener listener) {
+ checkWidget ();
+ if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
+ TypedListener typedListener = new TypedListener (listener);
+ addListener (SWT.MouseMove,typedListener);
+}
+
+/**
+ * Adds the listener to the collection of listeners who will
+ * be notified when the receiver needs to be painted, by sending it
+ * one of the messages defined in the <code>PaintListener</code>
+ * interface.
+ *
+ * @param listener the listener which should be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see PaintListener
+ * @see #removePaintListener
+ */
+public void addPaintListener (PaintListener listener) {
+ checkWidget ();
+ if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
+ TypedListener typedListener = new TypedListener (listener);
+ addListener (SWT.Paint,typedListener);
+}
+
+/**
+ * Adds the listener to the collection of listeners who will
+ * be notified when traversal events occur, by sending it
+ * one of the messages defined in the <code>TraverseListener</code>
+ * interface.
+ *
+ * @param listener the listener which should be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see TraverseListener
+ * @see #removeTraverseListener
+ */
+public void addTraverseListener (TraverseListener listener) {
+ checkWidget ();
+ if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
+ TypedListener typedListener = new TypedListener (listener);
+ addListener (SWT.Traverse,typedListener);
+}
+
+abstract int callWindowProc (int msg, int wParam, int lParam);
+
+void checkOrientation (Widget parent) {
+ super.checkOrientation (parent);
+ if ((style & SWT.RIGHT_TO_LEFT) != 0) style |= SWT.MIRRORED;
+}
+
+/**
+ * Returns the preferred size of the receiver.
+ * <p>
+ * The <em>preferred size</em> of a control is the size that it would
+ * best be displayed at. The width hint and height hint arguments
+ * allow the caller to ask a control questions such as "Given a particular
+ * width, how high does the control need to be to show all of the contents?"
+ * To indicate that the caller does not wish to constrain a particular
+ * dimension, the constant <code>SWT.DEFAULT</code> is passed for the hint.
+ * </p>
+ *
+ * @param wHint the width hint (can be <code>SWT.DEFAULT</code>)
+ * @param hHint the height hint (can be <code>SWT.DEFAULT</code>)
+ * @return the preferred size of the control
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see Layout
+ * @see #getBorderWidth
+ * @see #getBounds
+ * @see #getSize
+ * @see #pack
+ * @see "computeTrim, getClientArea for controls that implement them"
+ */
+public Point computeSize (int wHint, int hHint) {
+ return computeSize (wHint, hHint, true);
+}
+
+/**
+ * Returns the preferred size of the receiver.
+ * <p>
+ * The <em>preferred size</em> of a control is the size that it would
+ * best be displayed at. The width hint and height hint arguments
+ * allow the caller to ask a control questions such as "Given a particular
+ * width, how high does the control need to be to show all of the contents?"
+ * To indicate that the caller does not wish to constrain a particular
+ * dimension, the constant <code>SWT.DEFAULT</code> is passed for the hint.
+ * </p><p>
+ * If the changed flag is <code>true</code>, it indicates that the receiver's
+ * <em>contents</em> have changed, therefore any caches that a layout manager
+ * containing the control may have been keeping need to be flushed. When the
+ * control is resized, the changed flag will be <code>false</code>, so layout
+ * manager caches can be retained.
+ * </p>
+ *
+ * @param wHint the width hint (can be <code>SWT.DEFAULT</code>)
+ * @param hHint the height hint (can be <code>SWT.DEFAULT</code>)
+ * @param changed <code>true</code> if the control's contents have changed, and <code>false</code> otherwise
+ * @return the preferred size of the control.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see Layout
+ * @see #getBorderWidth
+ * @see #getBounds
+ * @see #getSize
+ * @see #pack
+ * @see "computeTrim, getClientArea for controls that implement them"
+ */
+public Point computeSize (int wHint, int hHint, boolean changed) {
+ checkWidget ();
+ int width = DEFAULT_WIDTH;
+ int height = DEFAULT_HEIGHT;
+ if (wHint != SWT.DEFAULT) width = wHint;
+ if (hHint != SWT.DEFAULT) height = hHint;
+ int border = getBorderWidth ();
+ width += border * 2;
+ height += border * 2;
+ return new Point (width, height);
+}
+
+Control computeTabGroup () {
+ if (isTabGroup ()) return this;
+ return parent.computeTabGroup ();
+}
+
+Control computeTabRoot () {
+ Control [] tabList = parent._getTabList ();
+ if (tabList != null) {
+ int index = 0;
+ while (index < tabList.length) {
+ if (tabList [index] == this) break;
+ index++;
+ }
+ if (index == tabList.length) {
+ if (isTabGroup ()) return this;
+ }
+ }
+ return parent.computeTabRoot ();
+}
+
+Control [] computeTabList () {
+ if (isTabGroup ()) {
+ if (getVisible () && getEnabled ()) {
+ return new Control [] {this};
+ }
+ }
+ return new Control [0];
+}
+
+void createHandle () {
+ int hwndParent = 0;
+ if (handle != 0) {
+ hwndParent = handle;
+ } else {
+ if (parent != null) hwndParent = parent.handle;
+ }
+ handle = OS.CreateWindowEx (
+ widgetExtStyle (),
+ windowClass (),
+ null,
+ widgetStyle (),
+ OS.CW_USEDEFAULT, 0, OS.CW_USEDEFAULT, 0,
+ hwndParent,
+ 0,
+ OS.GetModuleHandle (null),
+ null);
+ if (handle == 0) error (SWT.ERROR_NO_HANDLES);
+ int bits = OS.GetWindowLong (handle, OS.GWL_STYLE);
+ if ((bits & OS.WS_CHILD) != 0) {
+ OS.SetWindowLong (handle, OS.GWL_ID, handle);
+ }
+ if (OS.IsDBLocale && parent != null) {
+ int hIMC = OS.ImmGetContext (hwndParent);
+ OS.ImmAssociateContext (handle, hIMC);
+ OS.ImmReleaseContext (hwndParent, hIMC);
+ }
+}
+
+void createWidget () {
+ foreground = background = -1;
+ checkOrientation (parent);
+ createHandle ();
+ register ();
+ subclass ();
+ setDefaultFont ();
+}
+
+int defaultBackground () {
+ if (OS.IsWinCE) return OS.GetSysColor (OS.COLOR_WINDOW);
+ return OS.GetSysColor (OS.COLOR_BTNFACE);
+}
+
+int defaultFont () {
+ Display display = getDisplay ();
+ return display.systemFont ();
+}
+
+int defaultForeground () {
+ return OS.GetSysColor (OS.COLOR_WINDOWTEXT);
+}
+
+void deregister () {
+ WidgetTable.remove (handle);
+}
+
+void destroyWidget () {
+ int hwnd = handle;
+ releaseHandle ();
+ if (hwnd != 0) {
+ OS.DestroyWindow (hwnd);
+ }
+}
+
+void drawBackground (int hDC) {
+ RECT rect = new RECT ();
+ OS.GetClientRect (handle, rect);
+ drawBackground (hDC, rect);
+}
+
+void drawBackground (int hDC, RECT rect) {
+ Display display = getDisplay ();
+ int hPalette = display.hPalette;
+ if (hPalette != 0) {
+ OS.SelectPalette (hDC, hPalette, false);
+ OS.RealizePalette (hDC);
+ }
+ int pixel = getBackgroundPixel ();
+ int hBrush = findBrush (pixel);
+ OS.FillRect (hDC, rect, hBrush);
+}
+
+int findBrush (int pixel) {
+ return parent.findBrush (pixel);
+}
+
+int findCursor () {
+ if (hCursor != 0) return hCursor;
+ return parent.findCursor ();
+}
+
+char findMnemonic (String string) {
+ int index = 0;
+ int length = string.length ();
+ do {
+ while (index < length && string.charAt (index) != Mnemonic) index++;
+ if (++index >= length) return '\0';
+ if (string.charAt (index) != Mnemonic) return string.charAt (index);
+ index++;
+ } while (index < length);
+ return '\0';
+}
+
+void fixFocus () {
+ Shell shell = getShell ();
+ Control control = this;
+ while ((control = control.parent) != null) {
+ if (control.setFocus () || control == shell) return;
+ }
+ OS.SetFocus (0);
+}
+
+/**
+ * Forces the receiver to have the <em>keyboard focus</em>, causing
+ * all keyboard events to be delivered to it.
+ *
+ * @return <code>true</code> if the control got focus, and <code>false</code> if it was unable to.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see #setFocus
+ */
+public boolean forceFocus () {
+ checkWidget ();
+ Decorations shell = menuShell ();
+ shell.setSavedFocus (this);
+ if (!isEnabled () || !isVisible () || !isActive ()) return false;
+ if (isFocusControl ()) return true;
+ shell.bringToTop ();
+ /*
+ * This code is intentionally commented.
+ *
+ * When setting focus to a control, it is
+ * possible that application code can set
+ * the focus to another control inside of
+ * WM_SETFOCUS. In this case, the original
+ * control will no longer have the focus
+ * and the call to setFocus() will return
+ * false indicating failure.
+ *
+ * We are still working on a solution at
+ * this time.
+ */
+// if (OS.GetFocus () != OS.SetFocus (handle)) return false;
+ OS.SetFocus (handle);
+ return isFocusControl ();
+}
+
+void forceResize () {
+ if (parent == null) return;
+ WINDOWPOS [] lpwp = parent.lpwp;
+ if (lpwp == null) return;
+ for (int i=0; i<lpwp.length; i++) {
+ WINDOWPOS wp = lpwp [i];
+ if (wp != null && wp.hwnd == handle) {
+ /*
+ * This code is intentionally commented. All widgets that
+ * are created by SWT have WS_CLIPSIBLINGS to ensure that
+ * application code does not draw outside of the control.
+ */
+// int count = parent.getChildrenCount ();
+// if (count > 1) {
+// int bits = OS.GetWindowLong (handle, OS.GWL_STYLE);
+// if ((bits & OS.WS_CLIPSIBLINGS) == 0) wp.flags |= OS.SWP_NOCOPYBITS;
+// }
+ OS.SetWindowPos (wp.hwnd, 0, wp.x, wp.y, wp.cx, wp.cy, wp.flags);
+ lpwp [i] = null;
+ return;
+ }
+ }
+}
+
+/**
+ * Returns the accessible object for the receiver.
+ * If this is the first time this object is requested,
+ * then the object is created and returned.
+ *
+ * @return the accessible object
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see Accessible#addAccessibleListener
+ * @see Accessible#addAccessibleControlListener
+ *
+ * @since 2.0
+ */
+public Accessible getAccessible () {
+ checkWidget ();
+ if (accessible == null) accessible = new_Accessible (this);
+ return accessible;
+}
+
+/**
+ * Returns the receiver's background color.
+ *
+ * @return the background color
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public Color getBackground () {
+ checkWidget ();
+ return Color.win32_new (getDisplay (), getBackgroundPixel ());
+}
+
+int getBackgroundPixel () {
+ if (background == -1) return defaultBackground ();
+ return background;
+}
+
+/**
+ * Returns the receiver's border width.
+ *
+ * @return the border width
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public int getBorderWidth () {
+ checkWidget ();
+ int bits = OS.GetWindowLong (handle, OS.GWL_EXSTYLE);
+ if ((bits & OS.WS_EX_CLIENTEDGE) != 0) return OS.GetSystemMetrics (OS.SM_CXEDGE);
+ if ((bits & OS.WS_EX_STATICEDGE) != 0) return OS.GetSystemMetrics (OS.SM_CXBORDER);
+ return 0;
+}
+
+/**
+ * Returns a rectangle describing the receiver's size and location
+ * relative to its parent (or its display if its parent is null).
+ *
+ * @return the receiver's bounding rectangle
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public Rectangle getBounds () {
+ checkWidget ();
+ forceResize ();
+ RECT rect = new RECT ();
+ OS.GetWindowRect (handle, rect);
+ int hwndParent = parent == null ? 0 : parent.handle;
+ OS.MapWindowPoints (0, hwndParent, rect, 2);
+ int width = rect.right - rect.left;
+ int height = rect.bottom - rect.top;
+ return new Rectangle (rect.left, rect.top, width, height);
+}
+
+int getCodePage () {
+ int hFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0);
+ LOGFONT logFont = new LOGFONT ();
+ OS.GetObject (hFont, LOGFONT.sizeof, logFont);
+ int cs = logFont.lfCharSet & 0xFF;
+ int [] lpCs = new int [8];
+ if (OS.TranslateCharsetInfo (cs, lpCs, OS.TCI_SRCCHARSET)) {
+ return lpCs [1];
+ }
+ return OS.GetACP ();
+}
+
+/**
+ * Returns the display that the receiver was created on.
+ *
+ * @return the receiver's display
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public Display getDisplay () {
+ Composite parent = this.parent;
+ if (parent == null) error (SWT.ERROR_WIDGET_DISPOSED);
+ return parent.getDisplay ();
+}
+
+/**
+ * Returns <code>true</code> if the receiver is enabled, and
+ * <code>false</code> otherwise. A disabled control is typically
+ * not selectable from the user interface and draws with an
+ * inactive or "grayed" look.
+ *
+ * @return the receiver's enabled state
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see #isEnabled
+ */
+public boolean getEnabled () {
+ checkWidget ();
+ return OS.IsWindowEnabled (handle);
+}
+
+/**
+ * Returns the font that the receiver will use to paint textual information.
+ *
+ * @return the receiver's font
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public Font getFont () {
+ checkWidget ();
+ int hFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0);
+ if (hFont == 0) hFont = defaultFont ();
+ return Font.win32_new (getDisplay (), hFont);
+}
+
+/**
+ * Returns the foreground color that the receiver will use to draw.
+ *
+ * @return the receiver's foreground color
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public Color getForeground () {
+ checkWidget ();
+ return Color.win32_new (getDisplay (), getForegroundPixel ());
+}
+
+int getForegroundPixel () {
+ if (foreground == -1) return defaultForeground ();
+ return foreground;
+}
+
+/**
+ * Returns layout data which is associated with the receiver.
+ *
+ * @return the receiver's layout data
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public Object getLayoutData () {
+ checkWidget ();
+ return layoutData;
+}
+
+/**
+ * Returns a point describing the receiver's location relative
+ * to its parent (or its display if its parent is null).
+ *
+ * @return the receiver's location
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public Point getLocation () {
+ checkWidget ();
+ forceResize ();
+ RECT rect = new RECT ();
+ OS.GetWindowRect (handle, rect);
+ int hwndParent = parent == null ? 0 : parent.handle;
+ OS.MapWindowPoints (0, hwndParent, rect, 2);
+ return new Point (rect.left, rect.top);
+}
+
+/**
+ * Returns the receiver's pop up menu if it has one, or null
+ * if it does not. All controls may optionally have a pop up
+ * menu that is displayed when the user requests one for
+ * the control. The sequence of key strokes, button presses
+ * and/or button releases that are used to request a pop up
+ * menu is platform specific.
+ *
+ * @return the receiver's menu
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public Menu getMenu () {
+ checkWidget ();
+ return menu;
+}
+
+/**
+ * Returns the receiver's parent, which must be a <code>Composite</code>
+ * or null when the receiver is a shell that was created with null or
+ * a display for a parent.
+ *
+ * @return the receiver's parent
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public Composite getParent () {
+ checkWidget ();
+ return parent;
+}
+
+Control [] getPath () {
+ int count = 0;
+ Shell shell = getShell ();
+ Control control = this;
+ while (control != shell) {
+ count++;
+ control = control.parent;
+ }
+ control = this;
+ Control [] result = new Control [count];
+ while (control != shell) {
+ result [--count] = control;
+ control = control.parent;
+ }
+ return result;
+}
+
+/**
+ * Returns the receiver's shell. For all controls other than
+ * shells, this simply returns the control's nearest ancestor
+ * shell. Shells return themselves, even if they are children
+ * of other shells.
+ *
+ * @return the receiver's shell
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see #getParent
+ */
+public Shell getShell () {
+ checkWidget ();
+ return parent.getShell ();
+}
+
+/**
+ * Returns a point describing the receiver's size. The
+ * x coordinate of the result is the width of the receiver.
+ * The y coordinate of the result is the height of the
+ * receiver.
+ *
+ * @return the receiver's size
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public Point getSize () {
+ checkWidget ();
+ forceResize ();
+ RECT rect = new RECT ();
+ OS.GetWindowRect (handle, rect);
+ int width = rect.right - rect.left;
+ int height = rect.bottom - rect.top;
+ return new Point (width, height);
+}
+
+/**
+ * Returns the receiver's tool tip text, or null if it has
+ * not been set.
+ *
+ * @return the receiver's tool tip text
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public String getToolTipText () {
+ checkWidget ();
+ return toolTipText;
+}
+
+/**
+ * Returns <code>true</code> if the receiver is visible, and
+ * <code>false</code> otherwise.
+ * <p>
+ * If one of the receiver's ancestors is not visible or some
+ * other condition makes the receiver not visible, this method
+ * may still indicate that it is considered visible even though
+ * it may not actually be showing.
+ * </p>
+ *
+ * @return the receiver's visibility state
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public boolean getVisible () {
+ checkWidget ();
+ int bits = OS.GetWindowLong (handle, OS.GWL_STYLE);
+ return (bits & OS.WS_VISIBLE) != 0;
+}
+
+boolean hasCursor () {
+ RECT rect = new RECT ();
+ if (!OS.GetClientRect (handle, rect)) return false;
+ if (OS.MapWindowPoints (handle, 0, rect, 2) == 0) return false;
+ POINT pt = new POINT ();
+ return (OS.GetCursorPos (pt) && OS.PtInRect (rect, pt));
+}
+
+boolean hasFocus () {
+ /*
+ * If a non-SWT child of the control has focus,
+ * then this control is considered to have focus
+ * even though it does not have focus in Windows.
+ */
+ int hwndFocus = OS.GetFocus ();
+ while (hwndFocus != 0) {
+ if (hwndFocus == handle) return true;
+ if (WidgetTable.get (hwndFocus) != null) {
+ return false;
+ }
+ hwndFocus = OS.GetParent (hwndFocus);
+ }
+ return false;
+}
+
+/**
+ * Invokes platform specific functionality to allocate a new GC handle.
+ * <p>
+ * <b>IMPORTANT:</b> This method is <em>not</em> part of the public
+ * API for <code>Control</code>. It is marked public only so that it
+ * can be shared within the packages provided by SWT. It is not
+ * available on all platforms, and should never be called from
+ * application code.
+ * </p>
+ *
+ * @param data the platform specific GC data
+ * @return the platform specific GC handle
+ *
+ * @private
+ */
+public int internal_new_GC (GCData data) {
+ checkWidget();
+ int hDC;
+ if (data == null || data.ps == null) {
+ hDC = OS.GetDC (handle);
+ } else {
+ hDC = OS.BeginPaint (handle, data.ps);
+ }
+ if (hDC == 0) SWT.error(SWT.ERROR_NO_HANDLES);
+ if (data != null) {
+ data.device = getDisplay ();
+ data.foreground = getForegroundPixel ();
+ data.background = getBackgroundPixel ();
+ data.hFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0);
+ data.hwnd = handle;
+ }
+ return hDC;
+}
+
+/**
+ * Invokes platform specific functionality to dispose a GC handle.
+ * <p>
+ * <b>IMPORTANT:</b> This method is <em>not</em> part of the public
+ * API for <code>Control</code>. It is marked public only so that it
+ * can be shared within the packages provided by SWT. It is not
+ * available on all platforms, and should never be called from
+ * application code.
+ * </p>
+ *
+ * @param handle the platform specific GC handle
+ * @param data the platform specific GC data
+ *
+ * @private
+ */
+public void internal_dispose_GC (int hDC, GCData data) {
+ checkWidget ();
+ if (data == null || data.ps == null) {
+ OS.ReleaseDC (handle, hDC);
+ } else {
+ OS.EndPaint (handle, data.ps);
+ }
+}
+
+boolean isActive () {
+ Display display = getDisplay ();
+ Shell modal = display.getModalShell ();
+ if (modal != null && modal != this) {
+ if ((modal.style & SWT.PRIMARY_MODAL) != 0) {
+ Shell shell = getShell ();
+ if (modal.parent == shell) {
+ return false;
+ }
+ }
+ int bits = SWT.APPLICATION_MODAL | SWT.SYSTEM_MODAL;
+ if ((modal.style & bits) != 0) {
+ Control control = this;
+ while (control != null) {
+ if (control == modal) break;
+ control = control.parent;
+ }
+ if (control != modal) return false;
+ }
+ }
+ return getShell ().getEnabled ();
+}
+
+public boolean isDisposed () {
+ return handle == 0;
+}
+
+/**
+ * Returns <code>true</code> if the receiver is enabled and all
+ * of the receiver's ancestors are enabled, and <code>false</code>
+ * otherwise. A disabled control is typically not selectable from the
+ * user interface and draws with an inactive or "grayed" look.
+ *
+ * @return the receiver's enabled state
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see #getEnabled
+ */
+public boolean isEnabled () {
+ checkWidget ();
+ return getEnabled () && parent.isEnabled ();
+}
+
+/**
+ * Returns <code>true</code> if the receiver has the user-interface
+ * focus, and <code>false</code> otherwise.
+ *
+ * @return the receiver's focus state
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public boolean isFocusControl () {
+ checkWidget ();
+ return hasFocus ();
+}
+
+boolean isFocusAncestor () {
+ Display display = getDisplay ();
+ Control control = display.getFocusControl ();
+ while (control != null && control != this) {
+ control = control.parent;
+ }
+ return control == this;
+}
+
+/**
+ * Returns <code>true</code> if the underlying operating
+ * system supports this reparenting, otherwise <code>false</code>
+ *
+ * @return <code>true</code> if the widget can be reparented, otherwise <code>false</code>
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public boolean isReparentable () {
+ checkWidget ();
+ return true;
+}
+
+boolean isShowing () {
+ /*
+ * This is not complete. Need to check if the
+ * widget is obscurred by a parent or sibling.
+ */
+ if (!isVisible ()) return false;
+ Control control = this;
+ while (control != null) {
+ Point size = control.getSize ();
+ if (size.x == 0 || size.y == 0) {
+ return false;
+ }
+ control = control.parent;
+ }
+ return true;
+ /*
+ * Check to see if current damage is included.
+ */
+// if (!OS.IsWindowVisible (handle)) return false;
+// int flags = OS.DCX_CACHE | OS.DCX_CLIPCHILDREN | OS.DCX_CLIPSIBLINGS;
+// int hDC = OS.GetDCEx (handle, 0, flags);
+// int result = OS.GetClipBox (hDC, new RECT ());
+// OS.ReleaseDC (handle, hDC);
+// return result != OS.NULLREGION;
+}
+
+boolean isTabGroup () {
+ Control [] tabList = parent._getTabList ();
+ if (tabList != null) {
+ for (int i=0; i<tabList.length; i++) {
+ if (tabList [i] == this) return true;
+ }
+ }
+ int bits = OS.GetWindowLong (handle, OS.GWL_STYLE);
+ return (bits & OS.WS_TABSTOP) != 0;
+}
+
+boolean isTabItem () {
+ Control [] tabList = parent._getTabList ();
+ if (tabList != null) {
+ for (int i=0; i<tabList.length; i++) {
+ if (tabList [i] == this) return false;
+ }
+ }
+ int bits = OS.GetWindowLong (handle, OS.GWL_STYLE);
+ if ((bits & OS.WS_TABSTOP) != 0) return false;
+ int code = OS.SendMessage (handle, OS.WM_GETDLGCODE, 0, 0);
+ if ((code & OS.DLGC_STATIC) != 0) return false;
+ if ((code & OS.DLGC_WANTALLKEYS) != 0) return false;
+ if ((code & OS.DLGC_WANTARROWS) != 0) return false;
+ if ((code & OS.DLGC_WANTTAB) != 0) return false;
+ return true;
+}
+
+/**
+ * Returns <code>true</code> if the receiver is visible and all
+ * of the receiver's ancestors are visible and <code>false</code>
+ * otherwise.
+ *
+ * @return the receiver's visibility state
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see #getVisible
+ */
+public boolean isVisible () {
+ checkWidget ();
+ return OS.IsWindowVisible (handle);
+}
+
+Decorations menuShell () {
+ return parent.menuShell ();
+}
+
+boolean mnemonicHit (char key) {
+ return false;
+}
+
+boolean mnemonicMatch (char key) {
+ return false;
+}
+
+/**
+ * Moves the receiver above the specified control in the
+ * drawing order. If the argument is null, then the receiver
+ * is moved to the top of the drawing order. The control at
+ * the top of the drawing order will not be covered by other
+ * controls even if they occupy intersecting areas.
+ *
+ * @param the sibling control (or null)
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT - if the control has been disposed</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void moveAbove (Control control) {
+ checkWidget ();
+ int hwndAbove = OS.HWND_TOP;
+ if (control != null) {
+ if (control.isDisposed ()) error(SWT.ERROR_INVALID_ARGUMENT);
+ if (parent != control.parent) return;
+ int hwnd = control.handle;
+ if (hwnd == 0 || hwnd == handle) return;
+ hwndAbove = OS.GetWindow (hwnd, OS.GW_HWNDPREV);
+ /*
+ * Bug in Windows. For some reason, when GetWindow ()
+ * with GW_HWNDPREV is used to query the previous window
+ * in the z-order with the first child, Windows returns
+ * the first child instead of NULL. The fix is to detect
+ * this case and move the control to the top.
+ */
+ if (hwndAbove == 0 || hwndAbove == hwnd) {
+ hwndAbove = OS.HWND_TOP;
+ }
+ }
+ int flags = OS.SWP_NOSIZE | OS.SWP_NOMOVE | OS.SWP_NOACTIVATE;
+ OS.SetWindowPos (handle, hwndAbove, 0, 0, 0, 0, flags);
+}
+
+/**
+ * Moves the receiver below the specified control in the
+ * drawing order. If the argument is null, then the receiver
+ * is moved to the bottom of the drawing order. The control at
+ * the bottom of the drawing order will be covered by all other
+ * controls which occupy intersecting areas.
+ *
+ * @param the sibling control (or null)
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT - if the control has been disposed</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void moveBelow (Control control) {
+ checkWidget ();
+ int hwndAbove = OS.HWND_BOTTOM;
+ if (control != null) {
+ if (control.isDisposed ()) error(SWT.ERROR_INVALID_ARGUMENT);
+ if (parent != control.parent) return;
+ hwndAbove = control.handle;
+ }
+ if (hwndAbove == 0 || hwndAbove == handle) return;
+ int flags = OS.SWP_NOSIZE | OS.SWP_NOMOVE | OS.SWP_NOACTIVATE;
+ OS.SetWindowPos (handle, hwndAbove, 0, 0, 0, 0, flags);
+}
+
+Accessible new_Accessible (Control control) {
+ return Accessible.internal_new_Accessible (this);
+}
+
+/**
+ * Causes the receiver to be resized to its preferred size.
+ * For a composite, this involves computing the preferred size
+ * from its layout, if there is one.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see #computeSize
+ */
+public void pack () {
+ checkWidget ();
+ pack (true);
+}
+
+/**
+ * Causes the receiver to be resized to its preferred size.
+ * For a composite, this involves computing the preferred size
+ * from its layout, if there is one.
+ * <p>
+ * If the changed flag is <code>true</code>, it indicates that the receiver's
+ * <em>contents</em> have changed, therefore any caches that a layout manager
+ * containing the control may have been keeping need to be flushed. When the
+ * control is resized, the changed flag will be <code>false</code>, so layout
+ * manager caches can be retained.
+ * </p>
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see #computeSize
+ */
+public void pack (boolean changed) {
+ checkWidget ();
+ setSize (computeSize (SWT.DEFAULT, SWT.DEFAULT, changed));
+}
+
+/**
+ * Causes the entire bounds of the receiver to be marked
+ * as needing to be redrawn. The next time a paint request
+ * is processed, the control will be completely painted.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see #update
+ */
+public void redraw () {
+ checkWidget ();
+ if (!OS.IsWindowVisible (handle)) return;
+ if (OS.IsWinCE) {
+ OS.InvalidateRect (handle, null, true);
+ } else {
+ int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE;
+ OS.RedrawWindow (handle, null, 0, flags);
+ }
+}
+
+/**
+ * Causes the rectangular area of the receiver specified by
+ * the arguments to be marked as needing to be redrawn.
+ * The next time a paint request is processed, that area of
+ * the receiver will be painted. If the <code>all</code> flag
+ * is <code>true</code>, any children of the receiver which
+ * intersect with the specified area will also paint their
+ * intersecting areas. If the <code>all</code> flag is
+ * <code>false</code>, the children will not be painted.
+ *
+ * @param x the x coordinate of the area to draw
+ * @param y the y coordinate of the area to draw
+ * @param width the width of the area to draw
+ * @param height the height of the area to draw
+ * @param all <code>true</code> if children should redraw, and <code>false</code> otherwise
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see #update
+ */
+public void redraw (int x, int y, int width, int height, boolean all) {
+ checkWidget ();
+ if (width <= 0 || height <= 0) return;
+ if (!OS.IsWindowVisible (handle)) return;
+ RECT rect = new RECT ();
+ OS.SetRect (rect, x, y, x + width, y + height);
+ if (OS.IsWinCE) {
+ OS.InvalidateRect (handle, rect, true);
+ } else {
+ int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE;
+ if (all) flags |= OS.RDW_ALLCHILDREN;
+ OS.RedrawWindow (handle, rect, 0, flags);
+ }
+}
+
+void register () {
+ WidgetTable.put (handle, this);
+}
+
+void releaseHandle () {
+ super.releaseHandle ();
+ handle = 0;
+}
+
+void releaseWidget () {
+ super.releaseWidget ();
+ if (OS.IsDBLocale) {
+ OS.ImmAssociateContext (handle, 0);
+ }
+ if (toolTipText != null) {
+ Shell shell = getShell ();
+ shell.setToolTipText (handle, null);
+ }
+ toolTipText = null;
+ if (menu != null && !menu.isDisposed ()) {
+ menu.dispose ();
+ }
+ menu = null;
+ deregister ();
+ unsubclass ();
+ parent = null;
+ layoutData = null;
+ if (accessible != null) {
+ accessible.internal_dispose_Accessible ();
+ }
+ accessible = null;
+}
+
+/**
+ * Removes the listener from the collection of listeners who will
+ * be notified when the control is moved or resized.
+ *
+ * @param listener the listener which should be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see ControlListener
+ * @see #addControlListener
+ */
+public void removeControlListener (ControlListener listener) {
+ checkWidget ();
+ if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
+ if (eventTable == null) return;
+ eventTable.unhook (SWT.Move, listener);
+ eventTable.unhook (SWT.Resize, listener);
+}
+
+/**
+ * Removes the listener from the collection of listeners who will
+ * be notified when the control gains or loses focus.
+ *
+ * @param listener the listener which should be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see FocusListener
+ * @see #addFocusListener
+ */
+public void removeFocusListener(FocusListener listener) {
+ checkWidget ();
+ if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
+ if (eventTable == null) return;
+ eventTable.unhook (SWT.FocusIn, listener);
+ eventTable.unhook (SWT.FocusOut, listener);
+}
+
+/**
+ * Removes the listener from the collection of listeners who will
+ * be notified when the help events are generated for the control.
+ *
+ * @param listener the listener which should be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see HelpListener
+ * @see #addHelpListener
+ */
+public void removeHelpListener (HelpListener listener) {
+ checkWidget ();
+ if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
+ if (eventTable == null) return;
+ eventTable.unhook (SWT.Help, listener);
+}
+
+/**
+ * Removes the listener from the collection of listeners who will
+ * be notified when keys are pressed and released on the system keyboard.
+ *
+ * @param listener the listener which should be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see KeyListener
+ * @see #addKeyListener
+ */
+public void removeKeyListener(KeyListener listener) {
+ checkWidget ();
+ if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
+ if (eventTable == null) return;
+ eventTable.unhook (SWT.KeyUp, listener);
+ eventTable.unhook (SWT.KeyDown, listener);
+}
+
+/**
+ * Removes the listener from the collection of listeners who will
+ * be notified when the mouse passes or hovers over controls.
+ *
+ * @param listener the listener which should be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see MouseTrackListener
+ * @see #addMouseTrackListener
+ */
+public void removeMouseTrackListener(MouseTrackListener listener) {
+ checkWidget ();
+ if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
+ if (eventTable == null) return;
+ eventTable.unhook (SWT.MouseEnter, listener);
+ eventTable.unhook (SWT.MouseExit, listener);
+ eventTable.unhook (SWT.MouseHover, listener);
+}
+
+/**
+ * Removes the listener from the collection of listeners who will
+ * be notified when mouse buttons are pressed and released.
+ *
+ * @param listener the listener which should be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see MouseListener
+ * @see #addMouseListener
+ */
+public void removeMouseListener (MouseListener listener) {
+ checkWidget ();
+ if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
+ if (eventTable == null) return;
+ eventTable.unhook (SWT.MouseDown, listener);
+ eventTable.unhook (SWT.MouseUp, listener);
+ eventTable.unhook (SWT.MouseDoubleClick, listener);
+}
+
+/**
+ * Removes the listener from the collection of listeners who will
+ * be notified when the mouse moves.
+ *
+ * @param listener the listener which should be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see MouseMoveListener
+ * @see #addMouseMoveListener
+ */
+public void removeMouseMoveListener(MouseMoveListener listener) {
+ checkWidget ();
+ if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
+ if (eventTable == null) return;
+ eventTable.unhook (SWT.MouseMove, listener);
+}
+
+/**
+ * Removes the listener from the collection of listeners who will
+ * be notified when the receiver needs to be painted.
+ *
+ * @param listener the listener which should be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see PaintListener
+ * @see #addPaintListener
+ */
+public void removePaintListener(PaintListener listener) {
+ checkWidget ();
+ if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
+ if (eventTable == null) return;
+ eventTable.unhook(SWT.Paint, listener);
+}
+
+/**
+ * Removes the listener from the collection of listeners who will
+ * be notified when traversal events occur.
+ *
+ * @param listener the listener which should be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see TraverseListener
+ * @see #addTraverseListener
+ */
+public void removeTraverseListener(TraverseListener listener) {
+ checkWidget ();
+ if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
+ if (eventTable == null) return;
+ eventTable.unhook (SWT.Traverse, listener);
+}
+
+boolean sendKeyEvent (int type, int msg, int wParam, int lParam) {
+ Event event = new Event ();
+ if (!setKeyState (event, type)) return true;
+ return sendKeyEvent (type, msg, wParam, lParam, event);
+}
+
+boolean sendKeyEvent (int type, int msg, int wParam, int lParam, Event event) {
+ postEvent (type, event);
+ return true;
+}
+
+boolean sendMouseEvent (int type, int button, int msg, int wParam, int lParam) {
+ Event event = new Event ();
+ event.button = button;
+ event.x = (short) (lParam & 0xFFFF);
+ event.y = (short) (lParam >> 16);
+ setInputState (event, type);
+ return sendMouseEvent (type, msg, wParam, lParam, event);
+}
+
+boolean sendMouseEvent (int type, int msg, int wParam, int lParam, Event event) {
+ postEvent (type, event);
+ return true;
+}
+
+/**
+ * Sets the receiver's background color to the color specified
+ * by the argument, or to the default system color for the control
+ * if the argument is null.
+ *
+ * @param color the new color (or null)
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setBackground (Color color) {
+ checkWidget ();
+ int pixel = -1;
+ if (color != null) {
+ if (color.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ pixel = color.handle;
+ }
+ setBackgroundPixel (pixel);
+}
+
+void setBackgroundPixel (int pixel) {
+ if (background == pixel) return;
+ background = pixel;
+ OS.InvalidateRect (handle, null, true);
+}
+
+/**
+ * Sets the receiver's size and location to the rectangular
+ * area specified by the arguments. The <code>x</code> and
+ * <code>y</code> arguments are relative to the receiver's
+ * parent (or its display if its parent is null).
+ * <p>
+ * Note: Attempting to set the width or height of the
+ * receiver to a negative number will cause that
+ * value to be set to zero instead.
+ * </p>
+ *
+ * @param x the new x coordinate for the receiver
+ * @param y the new y coordinate for the receiver
+ * @param width the new width for the receiver
+ * @param height the new height for the receiver
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setBounds (int x, int y, int width, int height) {
+ checkWidget ();
+ int flags = OS.SWP_NOZORDER | OS.SWP_DRAWFRAME | OS.SWP_NOACTIVATE;
+ setBounds (x, y, Math.max (0, width), Math.max (0, height), flags);
+}
+
+void setBounds (int x, int y, int width, int height, int flags) {
+ if (parent == null) {
+ OS.SetWindowPos (handle, 0, x, y, width, height, flags);
+ return;
+ }
+ if (parent.lpwp == null) {
+ /*
+ * This code is intentionally commented. All widgets that
+ * are created by SWT have WS_CLIPSIBLINGS to ensure that
+ * application code does not draw outside of the control.
+ */
+// int count = parent.getChildrenCount ();
+// if (count > 1) {
+// int bits = OS.GetWindowLong (handle, OS.GWL_STYLE);
+// if ((bits & OS.WS_CLIPSIBLINGS) == 0) flags |= OS.SWP_NOCOPYBITS;
+// }
+ OS.SetWindowPos (handle, 0, x, y, width, height, flags);
+ return;
+ }
+ forceResize ();
+ WINDOWPOS [] lpwp = parent.lpwp;
+ int index = 0;
+ while (index < lpwp.length) {
+ if (lpwp [index] == null) break;
+ index ++;
+ }
+ if (index == lpwp.length) {
+ WINDOWPOS [] newLpwp = new WINDOWPOS [lpwp.length + 4];
+ System.arraycopy (lpwp, 0, newLpwp, 0, lpwp.length);
+ parent.lpwp = lpwp = newLpwp;
+ }
+ WINDOWPOS wp = new WINDOWPOS ();
+ wp.hwnd = handle;
+ wp.x = x;
+ wp.y = y;
+ wp.cx = width;
+ wp.cy = height;
+ wp.flags = flags;
+ lpwp [index] = wp;
+}
+
+/**
+ * Sets the receiver's size and location to the rectangular
+ * area specified by the argument. The <code>x</code> and
+ * <code>y</code> fields of the rectangle are relative to
+ * the receiver's parent (or its display if its parent is null).
+ * <p>
+ * Note: Attempting to set the width or height of the
+ * receiver to a negative number will cause that
+ * value to be set to zero instead.
+ * </p>
+ *
+ * @param rect the new bounds for the receiver
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setBounds (Rectangle rect) {
+ checkWidget ();
+ if (rect == null) error (SWT.ERROR_NULL_ARGUMENT);
+ setBounds (rect.x, rect.y, rect.width, rect.height);
+}
+
+/**
+ * If the argument is <code>true</code>, causes the receiver to have
+ * all mouse events delivered to it until the method is called with
+ * <code>false</code> as the argument.
+ *
+ * @param capture <code>true</code> to capture the mouse, and <code>false</code> to release it
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setCapture (boolean capture) {
+ checkWidget ();
+ if (capture) {
+ OS.SetCapture (handle);
+ } else {
+ if (OS.GetCapture () == handle) {
+ OS.ReleaseCapture ();
+ }
+ }
+}
+
+/**
+ * Sets the receiver's cursor to the cursor specified by the
+ * argument, or to the default cursor for that kind of control
+ * if the argument is null.
+ * <p>
+ * When the mouse pointer passes over a control its appearance
+ * is changed to match the control's cursor.
+ * </p>
+ *
+ * @param cursor the new cursor (or null)
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setCursor (Cursor cursor) {
+ checkWidget ();
+ hCursor = 0;
+ if (cursor != null) {
+ if (cursor.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ hCursor = cursor.handle;
+ }
+ if (OS.IsWinCE) {
+ OS.SetCursor (hCursor);
+ return;
+ }
+ int hwndCursor = OS.GetCapture ();
+ if (hwndCursor == 0) {
+ POINT pt = new POINT ();
+ if (!OS.GetCursorPos (pt)) return;
+ int hwnd = hwndCursor = OS.WindowFromPoint (pt);
+ while (hwnd != 0 && hwnd != handle) {
+ hwnd = OS.GetParent (hwnd);
+ }
+ if (hwnd == 0) return;
+ }
+ int lParam = OS.HTCLIENT | (OS.WM_MOUSEMOVE << 16);
+ OS.SendMessage (hwndCursor, OS.WM_SETCURSOR, hwndCursor, lParam);
+}
+
+void setDefaultFont () {
+ Display display = getDisplay ();
+ int hFont = display.systemFont ();
+ OS.SendMessage (handle, OS.WM_SETFONT, hFont, 0);
+}
+
+/**
+ * Enables the receiver if the argument is <code>true</code>,
+ * and disables it otherwise. A disabled control is typically
+ * not selectable from the user interface and draws with an
+ * inactive or "grayed" look.
+ *
+ * @param enabled the new enabled state
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setEnabled (boolean enabled) {
+ checkWidget ();
+
+ /*
+ * Feature in Windows. If the receiver has focus, disabling
+ * the receiver causes no window to have focus. The fix is
+ * to assign focus to the first ancestor window that takes
+ * focus. If no window will take focus, set focus to the
+ * desktop.
+ */
+ boolean fixFocus = false;
+ if (!enabled) fixFocus = isFocusAncestor ();
+ OS.EnableWindow (handle, enabled);
+ if (fixFocus) fixFocus ();
+}
+
+/**
+ * Causes the receiver to have the <em>keyboard focus</em>,
+ * such that all keyboard events will be delivered to it.
+ *
+ * @return <code>true</code> if the control got focus, and <code>false</code> if it was unable to.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see #forceFocus
+ */
+public boolean setFocus () {
+ checkWidget ();
+ return forceFocus ();
+}
+
+/**
+ * Sets the font that the receiver will use to paint textual information
+ * to the font specified by the argument, or to the default font for that
+ * kind of control if the argument is null.
+ *
+ * @param font the new font (or null)
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setFont (Font font) {
+ checkWidget ();
+ int hFont = 0;
+ if (font != null) {
+ if (font.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ hFont = font.handle;
+ }
+ if (hFont == 0) hFont = defaultFont ();
+ OS.SendMessage (handle, OS.WM_SETFONT, hFont, 1);
+}
+
+/**
+ * Sets the receiver's foreground color to the color specified
+ * by the argument, or to the default system color for the control
+ * if the argument is null.
+ *
+ * @param color the new color (or null)
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setForeground (Color color) {
+ checkWidget ();
+ int pixel = -1;
+ if (color != null) {
+ if (color.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ pixel = color.handle;
+ }
+ setForegroundPixel (pixel);
+}
+
+void setForegroundPixel (int pixel) {
+ if (foreground == pixel) return;
+ foreground = pixel;
+ OS.InvalidateRect (handle, null, true);
+}
+
+/**
+ * Sets the layout data associated with the receiver to the argument.
+ *
+ * @param layoutData the new layout data for the receiver.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setLayoutData (Object layoutData) {
+ checkWidget ();
+ this.layoutData = layoutData;
+}
+
+/**
+ * Sets the receiver's location to the point specified by
+ * the arguments which are relative to the receiver's
+ * parent (or its display if its parent is null).
+ *
+ * @param x the new x coordinate for the receiver
+ * @param y the new y coordinate for the receiver
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setLocation (int x, int y) {
+ checkWidget ();
+ int flags = OS.SWP_NOSIZE | OS.SWP_NOZORDER | OS.SWP_NOACTIVATE;
+ /*
+ * Feature in WinCE. The SWP_DRAWFRAME flag for SetWindowPos()
+ * causes a WM_SIZE message to be sent even when the SWP_NOSIZE
+ * flag is specified. The fix is to set SWP_DRAWFRAME only when
+ * not running on WinCE.
+ */
+ if (!OS.IsWinCE) flags |= OS.SWP_DRAWFRAME;
+ setBounds (x, y, 0, 0, flags);
+}
+
+/**
+ * Sets the receiver's location to the point specified by
+ * the argument which is relative to the receiver's
+ * parent (or its display if its parent is null).
+ *
+ * @param location the new location for the receiver
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setLocation (Point location) {
+ checkWidget ();
+ if (location == null) error (SWT.ERROR_NULL_ARGUMENT);
+ setLocation (location.x, location.y);
+}
+
+/**
+ * Sets the receiver's pop up menu to the argument.
+ * All controls may optionally have a pop up
+ * menu that is displayed when the user requests one for
+ * the control. The sequence of key strokes, button presses
+ * and/or button releases that are used to request a pop up
+ * menu is platform specific.
+ *
+ * @param menu the new pop up menu
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_MENU_NOT_POP_UP - the menu is not a pop up menu</li>
+ * <li>ERROR_INVALID_PARENT - if the menu is not in the same widget tree</li>
+ * <li>ERROR_INVALID_ARGUMENT - if the menu has been disposed</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setMenu (Menu menu) {
+ checkWidget ();
+ if (menu != null) {
+ if (menu.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ if ((menu.style & SWT.POP_UP) == 0) {
+ error (SWT.ERROR_MENU_NOT_POP_UP);
+ }
+ if (menu.parent != menuShell ()) {
+ error (SWT.ERROR_INVALID_PARENT);
+ }
+ }
+ this.menu = menu;
+}
+
+boolean setRadioFocus () {
+ return false;
+}
+
+boolean setRadioSelection (boolean value) {
+ return false;
+}
+
+/**
+ * If the argument is <code>false</code>, causes subsequent drawing
+ * operations in the receiver to be ignored. No drawing of any kind
+ * can occur in the receiver until the flag is set to true.
+ * Graphics operations that occurred while the flag was
+ * <code>false</code> are lost. When the flag is set to <code>true</code>,
+ * the entire widget is marked as needing to be redrawn.
+ * <p>
+ * Note: This operation is a hint and may not be supported on some
+ * platforms or for some widgets.
+ * </p>
+ *
+ * @param redraw the new redraw state
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see #redraw
+ * @see #update
+ */
+public void setRedraw (boolean redraw) {
+ checkWidget ();
+ /*
+ * This code is intentionally commented.
+ *
+ * Feature in Windows. When WM_SETREDRAW is used to turn
+ * off drawing in a widget, it clears the WS_VISIBLE bits
+ * and then sets them when redraw is turned back on. This
+ * means that WM_SETREDRAW will make a widget unexpectedly
+ * visible.
+ *
+ * There is no fix at this time.
+ */
+// if (drawCount == 0) {
+// int bits = OS.GetWindowLong (handle, OS.GWL_STYLE);
+// if ((bits & OS.WS_VISIBLE) == 0) return;
+// }
+
+ if (redraw) {
+ if (--drawCount == 0) {
+ OS.SendMessage (handle, OS.WM_SETREDRAW, 1, 0);
+ if (OS.IsWinCE) {
+ OS.InvalidateRect (handle, null, true);
+ } else {
+ int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE | OS.RDW_ALLCHILDREN;
+ OS.RedrawWindow (handle, null, 0, flags);
+ }
+ }
+ } else {
+ if (drawCount++ == 0) {
+ OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0);
+ }
+ }
+}
+
+boolean setSavedFocus () {
+ return forceFocus ();
+}
+
+/**
+ * Sets the receiver's size to the point specified by the arguments.
+ * <p>
+ * Note: Attempting to set the width or height of the
+ * receiver to a negative number will cause that
+ * value to be set to zero instead.
+ * </p>
+ *
+ * @param width the new width for the receiver
+ * @param height the new height for the receiver
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setSize (int width, int height) {
+ checkWidget ();
+ int flags = OS.SWP_NOMOVE | OS.SWP_NOZORDER | OS.SWP_DRAWFRAME | OS.SWP_NOACTIVATE;
+ setBounds (0, 0, Math.max (0, width), Math.max (0, height), flags);
+}
+
+/**
+ * Sets the receiver's size to the point specified by the argument.
+ * <p>
+ * Note: Attempting to set the width or height of the
+ * receiver to a negative number will cause them to be
+ * set to zero instead.
+ * </p>
+ *
+ * @param size the new size for the receiver
+ * @param height the new height for the receiver
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the point is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setSize (Point size) {
+ checkWidget ();
+ if (size == null) error (SWT.ERROR_NULL_ARGUMENT);
+ setSize (size.x, size.y);
+}
+
+boolean setTabGroupFocus () {
+ return setTabItemFocus ();
+}
+
+boolean setTabItemFocus () {
+ if (!isShowing ()) return false;
+ return setFocus ();
+}
+
+/**
+ * Sets the receiver's tool tip text to the argument, which
+ * may be null indicating that no tool tip text should be shown.
+ *
+ * @param string the new tool tip text (or null)
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setToolTipText (String string) {
+ checkWidget ();
+ Shell shell = getShell ();
+ shell.setToolTipText (handle, toolTipText = string);
+}
+
+/**
+ * Marks the receiver as visible if the argument is <code>true</code>,
+ * and marks it invisible otherwise.
+ * <p>
+ * If one of the receiver's ancestors is not visible or some
+ * other condition makes the receiver not visible, marking
+ * it visible may not actually cause it to be displayed.
+ * </p>
+ *
+ * @param visible the new visibility state
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setVisible (boolean visible) {
+ checkWidget ();
+ int bits = OS.GetWindowLong (handle, OS.GWL_STYLE);
+ if (((bits & OS.WS_VISIBLE) != 0) == visible) return;
+ if (visible) {
+ /*
+ * It is possible (but unlikely), that application
+ * code could have disposed the widget in the show
+ * event. If this happens, just return.
+ */
+ sendEvent (SWT.Show);
+ if (isDisposed ()) return;
+ }
+
+ /*
+ * Feature in Windows. If the receiver has focus, hiding
+ * the receiver causes no window to have focus. The fix is
+ * to assign focus to the first ancestor window that takes
+ * focus. If no window will take focus, set focus to the
+ * desktop.
+ */
+ boolean fixFocus = false;
+ if (!visible) fixFocus = isFocusAncestor ();
+ OS.ShowWindow (handle, visible ? OS.SW_SHOW : OS.SW_HIDE);
+ if (!visible) {
+ /*
+ * It is possible (but unlikely), that application
+ * code could have disposed the widget in the show
+ * event. If this happens, just return.
+ */
+ sendEvent (SWT.Hide);
+ if (isDisposed ()) return;
+ }
+ if (fixFocus) fixFocus ();
+}
+
+void sort (int [] items) {
+ /* Shell Sort from K&R, pg 108 */
+ int length = items.length;
+ for (int gap=length/2; gap>0; gap/=2) {
+ for (int i=gap; i<length; i++) {
+ for (int j=i-gap; j>=0; j-=gap) {
+ if (items [j] <= items [j + gap]) {
+ int swap = items [j];
+ items [j] = items [j + gap];
+ items [j + gap] = swap;
+ }
+ }
+ }
+ }
+}
+
+void subclass () {
+ int oldProc = windowProc ();
+ int newProc = getDisplay ().windowProc;
+ if (oldProc == newProc) return;
+ OS.SetWindowLong (handle, OS.GWL_WNDPROC, newProc);
+}
+
+/**
+ * Returns a point which is the result of converting the
+ * argument, which is specified in display relative coordinates,
+ * to coordinates relative to the receiver.
+ * <p>
+ * @param x the x coordinate to be translated
+ * @param y the y coordinate to be translated
+ * @return the translated coordinates
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 2.1
+ */
+public Point toControl (int x, int y) {
+ checkWidget ();
+ POINT pt = new POINT ();
+ pt.x = x; pt.y = y;
+ OS.ScreenToClient (handle, pt);
+ return new Point (pt.x, pt.y);
+}
+
+/**
+ * Returns a point which is the result of converting the
+ * argument, which is specified in display relative coordinates,
+ * to coordinates relative to the receiver.
+ * <p>
+ * @param point the point to be translated (must not be null)
+ * @return the translated coordinates
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the point is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public Point toControl (Point point) {
+ checkWidget ();
+ if (point == null) error (SWT.ERROR_NULL_ARGUMENT);
+ return toControl (point.x, point.y);
+}
+
+/**
+ * Returns a point which is the result of converting the
+ * argument, which is specified in coordinates relative to
+ * the receiver, to display relative coordinates.
+ * <p>
+ * @param x the x coordinate to be translated
+ * @param y the y coordinate to be translated
+ * @return the translated coordinates
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 2.1
+ */
+public Point toDisplay (int x, int y) {
+ checkWidget ();
+ POINT pt = new POINT ();
+ pt.x = x; pt.y = y;
+ OS.ClientToScreen (handle, pt);
+ return new Point (pt.x, pt.y);
+}
+
+/**
+ * Returns a point which is the result of converting the
+ * argument, which is specified in coordinates relative to
+ * the receiver, to display relative coordinates.
+ * <p>
+ * @param point the point to be translated (must not be null)
+ * @return the translated coordinates
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the point is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public Point toDisplay (Point point) {
+ checkWidget ();
+ if (point == null) error (SWT.ERROR_NULL_ARGUMENT);
+ return toDisplay (point.x, point.y);
+}
+
+boolean translateAccelerator (MSG msg) {
+ return menuShell ().translateAccelerator (msg);
+}
+
+boolean translateMnemonic (char key) {
+ if (!isVisible () || !isEnabled ()) return false;
+ Event event = new Event ();
+ event.doit = mnemonicMatch (key);
+ event.detail = SWT.TRAVERSE_MNEMONIC;
+ Display display = getDisplay ();
+ display.lastKey = 0;
+ display.lastAscii = key;
+ display.lastVirtual = display.lastNull = false;
+ if (!setKeyState (event, SWT.Traverse)) {
+ return false;
+ }
+ return traverse (event);
+}
+
+boolean translateMnemonic (MSG msg) {
+ int hwnd = msg.hwnd;
+ if (OS.GetKeyState (OS.VK_MENU) >= 0) {
+ int code = OS.SendMessage (hwnd, OS.WM_GETDLGCODE, 0, 0);
+ if ((code & OS.DLGC_WANTALLKEYS) != 0) return false;
+ if ((code & OS.DLGC_BUTTON) == 0) return false;
+ }
+ Decorations shell = menuShell ();
+ if (shell.isVisible () && shell.isEnabled ()) {
+ char ch = mbcsToWcs ((char) msg.wParam);
+ return ch != 0 && shell.translateMnemonic (ch);
+ }
+ return false;
+}
+
+boolean translateTraversal (MSG msg) {
+ int key = msg.wParam;
+ if (key == OS.VK_MENU) {
+ Shell shell = getShell ();
+ int hwndShell = shell.handle;
+ OS.SendMessage (hwndShell, OS.WM_CHANGEUISTATE, OS.UIS_INITIALIZE, 0);
+ return false;
+ }
+ int hwnd = msg.hwnd;
+ int detail = SWT.TRAVERSE_NONE;
+ boolean doit = true, all = false;
+ boolean lastVirtual = false;
+ int lastKey = key, lastAscii = 0;
+ switch (key) {
+ case OS.VK_ESCAPE: {
+ all = true;
+ lastAscii = 27;
+ int code = OS.SendMessage (hwnd, OS.WM_GETDLGCODE, 0, 0);
+ if ((code & OS.DLGC_WANTALLKEYS) != 0) {
+ /*
+ * Use DLGC_HASSETSEL to determine that the control
+ * is a text widget. A text widget normally wants
+ * all keys except VK_ESCAPE. If this bit is not
+ * set, then assume the control wants all keys,
+ * including VK_ESCAPE.
+ */
+ if ((code & OS.DLGC_HASSETSEL) == 0) doit = false;
+ }
+ detail = SWT.TRAVERSE_ESCAPE;
+ break;
+ }
+ case OS.VK_RETURN: {
+ all = true;
+ lastAscii = '\r';
+ int code = OS.SendMessage (hwnd, OS.WM_GETDLGCODE, 0, 0);
+ if ((code & OS.DLGC_WANTALLKEYS) != 0) doit = false;
+ detail = SWT.TRAVERSE_RETURN;
+ break;
+ }
+ case OS.VK_TAB: {
+ /*
+ * NOTE: This code causes Shift+Tab and Ctrl+Tab to
+ * always attempt traversal which is not correct.
+ * The default should be the same as a plain Tab key.
+ * This behavior is currently relied on by StyledText.
+ *
+ * The correct behavior is to give every key to a
+ * control that answers DLGC_WANTALLKEYS.
+ */
+ lastAscii = '\t';
+ boolean next = OS.GetKeyState (OS.VK_SHIFT) >= 0;
+ int code = OS.SendMessage (hwnd, OS.WM_GETDLGCODE, 0, 0);
+ if ((code & (OS.DLGC_WANTTAB | OS.DLGC_WANTALLKEYS)) != 0) {
+ if (next && OS.GetKeyState (OS.VK_CONTROL) >= 0) doit = false;
+ }
+ detail = next ? SWT.TRAVERSE_TAB_NEXT : SWT.TRAVERSE_TAB_PREVIOUS;
+ break;
+ }
+ case OS.VK_UP:
+ case OS.VK_LEFT:
+ case OS.VK_DOWN:
+ case OS.VK_RIGHT: {
+ /*
+ * On WinCE SP there is no tab key. Focus is assigned
+ * using only the VK_UP and VK_DOWN keys, not with VK_LEFT
+ * or VK_RIGHT. */
+ if (OS.IsSP) {
+ if (key == OS.VK_LEFT || key == OS.VK_RIGHT) return false;
+ }
+ lastVirtual = true;
+ int code = OS.SendMessage (hwnd, OS.WM_GETDLGCODE, 0, 0);
+ if ((code & (OS.DLGC_WANTARROWS /*| OS.DLGC_WANTALLKEYS*/)) != 0) doit = false;
+ boolean next = key == OS.VK_DOWN || key == OS.VK_RIGHT;
+ detail = next ? SWT.TRAVERSE_ARROW_NEXT : SWT.TRAVERSE_ARROW_PREVIOUS;
+ break;
+ }
+ case OS.VK_PRIOR:
+ case OS.VK_NEXT: {
+ all = true;
+ lastVirtual = true;
+ if (OS.GetKeyState (OS.VK_CONTROL) >= 0) return false;
+ /*
+ * The fact that this code is commented causes Ctrl+PgUp
+ * and Ctrl+PgDn to always attempt traversal which is not
+ * correct. This behavior is relied on by StyledText.
+ *
+ * The correct behavior is to give every key to a control
+ * that answers DLGC_WANTALLKEYS.
+ */
+// int code = OS.SendMessage (hwnd, OS., 0, 0);
+// if ((code & OS.DLGC_WANTALLKEYS) != 0) doit = false;
+ detail = key == OS.VK_PRIOR ? SWT.TRAVERSE_PAGE_PREVIOUS : SWT.TRAVERSE_PAGE_NEXT;
+ break;
+ }
+ default:
+ return false;
+ }
+ Event event = new Event ();
+ event.doit = doit;
+ event.detail = detail;
+ Display display = getDisplay ();
+ display.lastKey = lastKey;
+ display.lastAscii = lastAscii;
+ display.lastVirtual = lastVirtual;
+ display.lastNull = false;
+ if (!setKeyState (event, SWT.Traverse)) {
+ return false;
+ }
+ Shell shell = getShell ();
+ Control control = this;
+ do {
+ if (control.traverse (event)) {
+ int hwndShell = shell.handle;
+ OS.SendMessage (hwndShell, OS.WM_CHANGEUISTATE, OS.UIS_INITIALIZE, 0);
+ return true;
+ }
+ if (!event.doit && control.hooks (SWT.Traverse)) {
+ return false;
+ }
+ if (control == shell) return false;
+ control = control.parent;
+ } while (all && control != null);
+ return false;
+}
+
+boolean traverse (Event event) {
+ /*
+ * It is possible (but unlikely), that application
+ * code could have disposed the widget in the traverse
+ * event. If this happens, return true to stop further
+ * event processing.
+ */
+ sendEvent (SWT.Traverse, event);
+ if (isDisposed ()) return false;
+ if (!event.doit) return false;
+ switch (event.detail) {
+ case SWT.TRAVERSE_NONE: return true;
+ case SWT.TRAVERSE_ESCAPE: return traverseEscape ();
+ case SWT.TRAVERSE_RETURN: return traverseReturn ();
+ case SWT.TRAVERSE_TAB_NEXT: return traverseGroup (true);
+ case SWT.TRAVERSE_TAB_PREVIOUS: return traverseGroup (false);
+ case SWT.TRAVERSE_ARROW_NEXT: return traverseItem (true);
+ case SWT.TRAVERSE_ARROW_PREVIOUS: return traverseItem (false);
+ case SWT.TRAVERSE_MNEMONIC: return traverseMnemonic (event.character);
+ case SWT.TRAVERSE_PAGE_NEXT: return traversePage (true);
+ case SWT.TRAVERSE_PAGE_PREVIOUS: return traversePage (false);
+ }
+ return false;
+}
+
+/**
+ * Based on the argument, perform one of the expected platform
+ * traversal action. The argument should be one of the constants:
+ * <code>SWT.TRAVERSE_ESCAPE</code>, <code>SWT.TRAVERSE_RETURN</code>,
+ * <code>SWT.TRAVERSE_TAB_NEXT</code>, <code>SWT.TRAVERSE_TAB_PREVIOUS</code>,
+ * <code>SWT.TRAVERSE_ARROW_NEXT</code> and <code>SWT.TRAVERSE_ARROW_PREVIOUS</code>.
+ *
+ * @param traversal the type of traversal
+ * @return true if the traversal succeeded
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public boolean traverse (int traversal) {
+ checkWidget ();
+ if (!isFocusControl () && !setFocus ()) return false;
+ Event event = new Event ();
+ event.doit = true;
+ event.detail = traversal;
+ return traverse (event);
+}
+
+boolean traverseEscape () {
+ return false;
+}
+
+boolean traverseGroup (boolean next) {
+ Control root = computeTabRoot ();
+ Control group = computeTabGroup ();
+ Control [] list = root.computeTabList ();
+ int length = list.length;
+ int index = 0;
+ while (index < length) {
+ if (list [index] == group) break;
+ index++;
+ }
+ /*
+ * It is possible (but unlikely), that application
+ * code could have disposed the widget in focus in
+ * or out events. Ensure that a disposed widget is
+ * not accessed.
+ */
+ if (index == length) return false;
+ int start = index, offset = (next) ? 1 : -1;
+ while ((index = ((index + offset + length) % length)) != start) {
+ Control control = list [index];
+ if (!control.isDisposed () && control.setTabGroupFocus ()) {
+ if (!isDisposed () && !isFocusControl ()) return true;
+ }
+ }
+ if (group.isDisposed ()) return false;
+ return group.setTabGroupFocus ();
+}
+
+boolean traverseItem (boolean next) {
+ Control [] children = parent._getChildren ();
+ int length = children.length;
+ int index = 0;
+ while (index < length) {
+ if (children [index] == this) break;
+ index++;
+ }
+ /*
+ * It is possible (but unlikely), that application
+ * code could have disposed the widget in focus in
+ * or out events. Ensure that a disposed widget is
+ * not accessed.
+ */
+ int start = index, offset = (next) ? 1 : -1;
+ while ((index = (index + offset + length) % length) != start) {
+ Control child = children [index];
+ if (!child.isDisposed () && child.isTabItem ()) {
+ if (child.setTabItemFocus ()) return true;
+ }
+ }
+ return false;
+}
+
+boolean traverseMnemonic (char key) {
+ return mnemonicHit (key);
+}
+
+boolean traversePage (boolean next) {
+ return false;
+}
+
+boolean traverseReturn () {
+ return false;
+}
+
+void unsubclass () {
+ int newProc = windowProc ();
+ int oldProc = getDisplay ().windowProc;
+ if (oldProc == newProc) return;
+ OS.SetWindowLong (handle, OS.GWL_WNDPROC, newProc);
+}
+
+/**
+ * Forces all outstanding paint requests for the widget
+ * to be processed before this method returns.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see #redraw
+ */
+public void update () {
+ checkWidget ();
+ update (false);
+}
+
+void update (boolean all) {
+// checkWidget ();
+ if (OS.IsWinCE) {
+ OS.UpdateWindow (handle);
+ } else {
+ int flags = OS.RDW_UPDATENOW;
+ if (all) flags |= OS.RDW_ALLCHILDREN;
+ OS.RedrawWindow (handle, null, 0, flags);
+ }
+}
+
+void updateFont (Font oldFont, Font newFont) {
+ Font font = getFont ();
+ if (font.equals (oldFont)) setFont (newFont);
+}
+
+int widgetExtStyle () {
+ int bits = 0;
+ if ((style & SWT.BORDER) != 0) bits |= OS.WS_EX_CLIENTEDGE;
+ /*
+ * Feature in Windows NT. When CreateWindowEx() is called with
+ * WS_EX_LAYOUTRTL or WS_EX_NOINHERITLAYOUT, CreateWindowEx()
+ * fails to create the HWND. The fix is to not use these bits.
+ */
+ if ((OS.WIN32_MAJOR << 16 | OS.WIN32_MINOR) < (4 << 16 | 10)) {
+ return bits;
+ }
+ bits |= OS.WS_EX_NOINHERITLAYOUT;
+ if ((style & SWT.RIGHT_TO_LEFT) != 0) bits |= OS.WS_EX_LAYOUTRTL;
+ return bits;
+}
+
+int widgetStyle () {
+ /* Force clipping of siblings by setting WS_CLIPSIBLINGS */
+ return OS.WS_CHILD | OS.WS_VISIBLE | OS.WS_CLIPSIBLINGS;
+
+ /*
+ * This code is intentionally commented. When clipping
+ * of both siblings and children is not enforced, it is
+ * possible for application code to draw outside of the
+ * control.
+ */
+// int bits = OS.WS_CHILD | OS.WS_VISIBLE;
+// if ((style & SWT.CLIP_SIBLINGS) != 0) bits |= OS.WS_CLIPSIBLINGS;
+// if ((style & SWT.CLIP_CHILDREN) != 0) bits |= OS.WS_CLIPCHILDREN;
+// return bits;
+}
+
+/**
+ * Changes the parent of the widget to be the one provided if
+ * the underlying operating system supports this feature.
+ * Answers <code>true</code> if the parent is successfully changed.
+ *
+ * @param parent the new parent for the control.
+ * @return <code>true</code> if the parent is changed and <code>false</code> otherwise.
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
+ * </ul>
+ * @exception SWTError <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ */
+public boolean setParent (Composite parent) {
+ checkWidget ();
+ if (parent == null) error (SWT.ERROR_NULL_ARGUMENT);
+ if (parent.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ if (OS.SetParent (handle, parent.handle) == 0) {
+ return false;
+ }
+ this.parent = parent;
+ return true;
+}
+
+abstract TCHAR windowClass ();
+
+abstract int windowProc ();
+
+int windowProc (int msg, int wParam, int lParam) {
+ LRESULT result = null;
+ switch (msg) {
+ case OS.WM_ACTIVATE: result = WM_ACTIVATE (wParam, lParam); break;
+ case OS.WM_CHAR: result = WM_CHAR (wParam, lParam); break;
+ case OS.WM_CLEAR: result = WM_CLEAR (wParam, lParam); break;
+ case OS.WM_CLOSE: result = WM_CLOSE (wParam, lParam); break;
+ case OS.WM_COMMAND: result = WM_COMMAND (wParam, lParam); break;
+ case OS.WM_CONTEXTMENU: result = WM_CONTEXTMENU (wParam, lParam); break;
+ case OS.WM_CTLCOLORBTN:
+ case OS.WM_CTLCOLORDLG:
+ case OS.WM_CTLCOLOREDIT:
+ case OS.WM_CTLCOLORLISTBOX:
+ case OS.WM_CTLCOLORMSGBOX:
+ case OS.WM_CTLCOLORSCROLLBAR:
+ case OS.WM_CTLCOLORSTATIC: result = WM_CTLCOLOR (wParam, lParam); break;
+ case OS.WM_CUT: result = WM_CUT (wParam, lParam); break;
+ case OS.WM_DESTROY: result = WM_DESTROY (wParam, lParam); break;
+ case OS.WM_DRAWITEM: result = WM_DRAWITEM (wParam, lParam); break;
+ case OS.WM_ENDSESSION: result = WM_ENDSESSION (wParam, lParam); break;
+ case OS.WM_ERASEBKGND: result = WM_ERASEBKGND (wParam, lParam); break;
+ case OS.WM_GETDLGCODE: result = WM_GETDLGCODE (wParam, lParam); break;
+ case OS.WM_HELP: result = WM_HELP (wParam, lParam); break;
+ case OS.WM_HSCROLL: result = WM_HSCROLL (wParam, lParam); break;
+ case OS.WM_IME_CHAR: result = WM_IME_CHAR (wParam, lParam); break;
+ case OS.WM_IME_COMPOSITION: result = WM_IME_COMPOSITION (wParam, lParam); break;
+ case OS.WM_INITMENUPOPUP: result = WM_INITMENUPOPUP (wParam, lParam); break;
+ case OS.WM_GETFONT: result = WM_GETFONT (wParam, lParam); break;
+ case OS.WM_GETOBJECT: result = WM_GETOBJECT (wParam, lParam); break;
+ case OS.WM_HOTKEY: result = WM_HOTKEY (wParam, lParam); break;
+ case OS.WM_KEYDOWN: result = WM_KEYDOWN (wParam, lParam); break;
+ case OS.WM_KEYUP: result = WM_KEYUP (wParam, lParam); break;
+ case OS.WM_KILLFOCUS: result = WM_KILLFOCUS (wParam, lParam); break;
+ case OS.WM_LBUTTONDBLCLK: result = WM_LBUTTONDBLCLK (wParam, lParam); break;
+ case OS.WM_LBUTTONDOWN: result = WM_LBUTTONDOWN (wParam, lParam); break;
+ case OS.WM_LBUTTONUP: result = WM_LBUTTONUP (wParam, lParam); break;
+ case OS.WM_MBUTTONDBLCLK: result = WM_MBUTTONDBLCLK (wParam, lParam); break;
+ case OS.WM_MBUTTONDOWN: result = WM_MBUTTONDOWN (wParam, lParam); break;
+ case OS.WM_MBUTTONUP: result = WM_MBUTTONUP (wParam, lParam); break;
+ case OS.WM_MEASUREITEM: result = WM_MEASUREITEM (wParam, lParam); break;
+ case OS.WM_MENUCHAR: result = WM_MENUCHAR (wParam, lParam); break;
+ case OS.WM_MENUSELECT: result = WM_MENUSELECT (wParam, lParam); break;
+ case OS.WM_MOUSEACTIVATE: result = WM_MOUSEACTIVATE (wParam, lParam); break;
+ case OS.WM_MOUSEHOVER: result = WM_MOUSEHOVER (wParam, lParam); break;
+ case OS.WM_MOUSELEAVE: result = WM_MOUSELEAVE (wParam, lParam); break;
+ case OS.WM_MOUSEMOVE: result = WM_MOUSEMOVE (wParam, lParam); break;
+ case OS.WM_MOUSEWHEEL: result = WM_MOUSEWHEEL (wParam, lParam); break;
+ case OS.WM_MOVE: result = WM_MOVE (wParam, lParam); break;
+ case OS.WM_NCACTIVATE: result = WM_NCACTIVATE (wParam, lParam); break;
+ case OS.WM_NCCALCSIZE: result = WM_NCCALCSIZE (wParam, lParam); break;
+ case OS.WM_NCHITTEST: result = WM_NCHITTEST (wParam, lParam); break;
+ case OS.WM_NOTIFY: result = WM_NOTIFY (wParam, lParam); break;
+ case OS.WM_PAINT: result = WM_PAINT (wParam, lParam); break;
+ case OS.WM_PALETTECHANGED: result = WM_PALETTECHANGED (wParam, lParam); break;
+ case OS.WM_PASTE: result = WM_PASTE (wParam, lParam); break;
+ case OS.WM_PRINTCLIENT: result = WM_PRINTCLIENT (wParam, lParam); break;
+ case OS.WM_QUERYENDSESSION: result = WM_QUERYENDSESSION (wParam, lParam); break;
+ case OS.WM_QUERYNEWPALETTE: result = WM_QUERYNEWPALETTE (wParam, lParam); break;
+ case OS.WM_QUERYOPEN: result = WM_QUERYOPEN (wParam, lParam); break;
+ case OS.WM_RBUTTONDBLCLK: result = WM_RBUTTONDBLCLK (wParam, lParam); break;
+ case OS.WM_RBUTTONDOWN: result = WM_RBUTTONDOWN (wParam, lParam); break;
+ case OS.WM_RBUTTONUP: result = WM_RBUTTONUP (wParam, lParam); break;
+ case OS.WM_SETCURSOR: result = WM_SETCURSOR (wParam, lParam); break;
+ case OS.WM_SETFOCUS: result = WM_SETFOCUS (wParam, lParam); break;
+ case OS.WM_SETFONT: result = WM_SETFONT (wParam, lParam); break;
+ case OS.WM_SETTINGCHANGE: result = WM_SETTINGCHANGE (wParam, lParam); break;
+ case OS.WM_SETREDRAW: result = WM_SETREDRAW (wParam, lParam); break;
+ case OS.WM_SHOWWINDOW: result = WM_SHOWWINDOW (wParam, lParam); break;
+ case OS.WM_SIZE: result = WM_SIZE (wParam, lParam); break;
+ case OS.WM_SYSCHAR: result = WM_SYSCHAR (wParam, lParam); break;
+ case OS.WM_SYSCOLORCHANGE: result = WM_SYSCOLORCHANGE (wParam, lParam); break;
+ case OS.WM_SYSCOMMAND: result = WM_SYSCOMMAND (wParam, lParam); break;
+ case OS.WM_SYSKEYDOWN: result = WM_SYSKEYDOWN (wParam, lParam); break;
+ case OS.WM_SYSKEYUP: result = WM_SYSKEYUP (wParam, lParam); break;
+ case OS.WM_TIMER: result = WM_TIMER (wParam, lParam); break;
+ case OS.WM_UNDO: result = WM_UNDO (wParam, lParam); break;
+ case OS.WM_VSCROLL: result = WM_VSCROLL (wParam, lParam); break;
+ case OS.WM_WINDOWPOSCHANGING: result = WM_WINDOWPOSCHANGING (wParam, lParam); break;
+ }
+ if (result != null) return result.value;
+ return callWindowProc (msg, wParam, lParam);
+}
+
+LRESULT WM_ACTIVATE (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT WM_CHAR (int wParam, int lParam) {
+
+ /*
+ * Do not report a lead byte as a key pressed.
+ */
+ Display display = getDisplay ();
+ if (!OS.IsUnicode && OS.IsDBLocale) {
+ byte lead = (byte) (wParam & 0xFF);
+ if (OS.IsDBCSLeadByte (lead)) return null;
+ }
+
+ /*
+ * Use VkKeyScan () to tell us if the character is a control
+ * or a numeric key pad character with Num Lock down. On
+ * international keyboards, the control key may be down when
+ * the character is not a control character. In this case
+ * use the last key (computed in WM_KEYDOWN) instead of wParam
+ * as the keycode because there is not enough information to
+ * compute the keycode in WPARAM.
+ */
+ display.lastAscii = wParam;
+ display.lastNull = false;
+ if (display.lastKey == 0) {
+ display.lastKey = wParam;
+ display.lastVirtual = display.isVirtualKey (wParam);
+ } else {
+ int result = OS.IsWinCE ? 0 : OS.VkKeyScan ((short) wParam);
+ if (!OS.IsWinCE && (result == -1 || (result >> 8) <= 2)) {
+ if (OS.GetKeyState (OS.VK_CONTROL) < 0) {
+ display.lastVirtual = display.isVirtualKey (display.lastKey);
+ }
+ } else {
+ display.lastKey = wParam;
+ display.lastVirtual = false;
+ }
+ }
+ if (!sendKeyEvent (SWT.KeyDown, OS.WM_CHAR, wParam, lParam)) {
+ return LRESULT.ZERO;
+ }
+ return null;
+}
+
+LRESULT WM_CLEAR (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT WM_CLOSE (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT WM_COMMAND (int wParam, int lParam) {
+ /*
+ * When the WM_COMMAND message is sent from a
+ * menu, the HWND parameter in LPARAM is zero.
+ */
+ if (lParam == 0) {
+ Decorations shell = menuShell ();
+ if (shell.isEnabled ()) {
+ int id = wParam & 0xFFFF;
+ MenuItem item = shell.findMenuItem (id);
+ if (item != null && item.isEnabled ()) {
+ return item.wmCommandChild (wParam, lParam);
+ }
+ }
+ return null;
+ }
+ Control control = WidgetTable.get (lParam);
+ if (control == null) return null;
+ return control.wmCommandChild (wParam, lParam);
+}
+
+LRESULT WM_CONTEXTMENU (int wParam, int lParam) {
+ if (wParam != handle) return null;
+
+ /*
+ * Feature in Windows. When the user presses WM_NCRBUTTONUP,
+ * a WM_CONTEXTMENU message is generated. This happens when
+ * the user releases the mouse over a scroll bar. Normally,
+ * window displays the default scrolling menu but applications
+ * can process WM_CONTEXTMENU to display a different menu.
+ * Typically, an application does not want to supply a special
+ * scroll menu. The fix is to look for a WM_CONTEXTMENU that
+ * originated from a mouse event and display the menu when the
+ * mouse was released in the client area.
+ */
+ POINT pt = new POINT ();
+ pt.x = (short) (lParam & 0xFFFF);
+ pt.y = (short) (lParam >> 16);
+ if (pt.x != -1 || pt.y != -1) {
+ RECT rect = new RECT ();
+ OS.GetClientRect (handle, rect);
+ OS.ScreenToClient (handle, pt);
+ if (!OS.PtInRect (rect, pt)) return null;
+ }
+
+ /*
+ * Because context menus can be shared between controls
+ * and the parent of all menus is the shell, the menu may
+ * have been destroyed.
+ */
+ if (menu != null && !menu.isDisposed ()) {
+// menu.setLocation (x, y);
+ menu.setVisible (true);
+ return LRESULT.ZERO;
+ }
+ return null;
+}
+
+LRESULT WM_CTLCOLOR (int wParam, int lParam) {
+ Display display = getDisplay ();
+ int hPalette = display.hPalette;
+ if (hPalette != 0) {
+ OS.SelectPalette (wParam, hPalette, false);
+ OS.RealizePalette (wParam);
+ }
+ Control control = WidgetTable.get (lParam);
+ if (control == null) return null;
+ return control.wmColorChild (wParam, lParam);
+}
+
+LRESULT WM_CUT (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT WM_DESTROY (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT WM_DRAWITEM (int wParam, int lParam) {
+ DRAWITEMSTRUCT struct = new DRAWITEMSTRUCT ();
+ OS.MoveMemory (struct, lParam, DRAWITEMSTRUCT.sizeof);
+ if (struct.CtlType == OS.ODT_MENU) {
+ Decorations shell = menuShell ();
+ MenuItem item = shell.findMenuItem (struct.itemID);
+ if (item == null) return null;
+ return item.wmDrawChild (wParam, lParam);
+ }
+ Control control = WidgetTable.get (struct.hwndItem);
+ if (control == null) return null;
+ return control.wmDrawChild (wParam, lParam);
+}
+
+LRESULT WM_ENDSESSION (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT WM_ERASEBKGND (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT WM_GETDLGCODE (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT WM_GETFONT (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT WM_GETOBJECT (int wParam, int lParam) {
+ if (accessible != null) {
+ int result = accessible.internal_WM_GETOBJECT (wParam, lParam);
+ if (result != 0) return new LRESULT (result);
+ }
+ return null;
+}
+
+LRESULT WM_HOTKEY (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT WM_HELP (int wParam, int lParam) {
+ if (OS.IsWinCE) return null;
+ HELPINFO lphi = new HELPINFO ();
+ OS.MoveMemory (lphi, lParam, HELPINFO.sizeof);
+ Decorations shell = menuShell ();
+ if (!shell.isEnabled ()) return null;
+ if (lphi.iContextType == OS.HELPINFO_MENUITEM) {
+ MenuItem item = shell.findMenuItem (lphi.iCtrlId);
+ if (item != null && item.isEnabled ()) {
+ Widget widget = null;
+ if (item.hooks (SWT.Help)) {
+ widget = item;
+ } else {
+ Menu menu = item.parent;
+ if (menu.hooks (SWT.Help)) widget = menu;
+ }
+ if (widget != null) {
+ int hwndShell = shell.handle;
+ OS.SendMessage (hwndShell, OS.WM_CANCELMODE, 0, 0);
+ widget.postEvent (SWT.Help);
+ return LRESULT.ONE;
+ }
+ }
+ return null;
+ }
+ if (hooks (SWT.Help)) {
+ postEvent (SWT.Help);
+ return LRESULT.ONE;
+ }
+ return null;
+}
+
+LRESULT WM_HSCROLL (int wParam, int lParam) {
+ if (lParam == 0) return null;
+ Control control = WidgetTable.get (lParam);
+ if (control == null) return null;
+ return control.wmScrollChild (wParam, lParam);
+}
+
+LRESULT WM_IME_CHAR (int wParam, int lParam) {
+ Display display = getDisplay ();
+ display.lastKey = 0;
+ display.lastAscii = wParam;
+ display.lastVirtual = display.lastNull = false;
+ sendKeyEvent (SWT.KeyDown, OS.WM_IME_CHAR, wParam, lParam);
+ sendKeyEvent (SWT.KeyUp, OS.WM_IME_CHAR, wParam, lParam);
+ display.lastKey = display.lastAscii = 0;
+ return LRESULT.ZERO;
+}
+
+LRESULT WM_IME_COMPOSITION (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT WM_INITMENUPOPUP (int wParam, int lParam) {
+
+ /* Ignore WM_INITMENUPOPUP for an accelerator */
+ Display display = getDisplay ();
+ if (display.accelKeyHit) return null;
+
+ /*
+ * If the high order word of LPARAM is non-zero,
+ * the menu is the system menu and we can ignore
+ * WPARAM. Otherwise, use WPARAM to find the menu.
+ */
+ Shell shell = getShell ();
+ Menu oldMenu = shell.activeMenu, newMenu = null;
+ if ((lParam >> 16) == 0) {
+ newMenu = menuShell ().findMenu (wParam);
+ }
+ Menu menu = newMenu;
+ while (menu != null && menu != oldMenu) {
+ menu = menu.getParentMenu ();
+ }
+ if (menu == null) {
+ menu = shell.activeMenu;
+ while (menu != null) {
+ /*
+ * It is possible (but unlikely), that application
+ * code could have disposed the widget in the hide
+ * event. If this happens, stop searching up the
+ * ancestor list because there is no longer a link
+ * to follow.
+ */
+ menu.sendEvent (SWT.Hide);
+ if (menu.isDisposed ()) break;
+ menu = menu.getParentMenu ();
+ Menu ancestor = newMenu;
+ while (ancestor != null && ancestor != menu) {
+ ancestor = ancestor.getParentMenu ();
+ }
+ if (ancestor != null) break;
+ }
+ }
+
+ /*
+ * The shell and the new menu may be disposed because of
+ * sending the hide event to the ancestor menus but setting
+ * a field to null in a disposed shell is not harmful.
+ */
+ if (newMenu != null && newMenu.isDisposed ()) newMenu = null;
+ shell.activeMenu = newMenu;
+
+ /*
+ * Send the show event
+ */
+ if (newMenu != null && newMenu != oldMenu) {
+ /*
+ * SWT.Selection events are posted to allow stepping
+ * in the VA/Java debugger. SWT.Show events are
+ * sent to ensure that application event handler
+ * code runs before the menu is displayed. This
+ * means that SWT.Show events would normally occur
+ * before SWT.Selection events. While this is not
+ * strictly incorrect, applications often use the
+ * SWT.Selection event to update the state of menu
+ * items and would like the ordering of events to
+ * be the other way around.
+ *
+ * The fix is to run the deferred events before
+ * the menu is shown. This means that stepping
+ * through a selection event that was caused by
+ * a popup menu will fail in VA/Java.
+ */
+ display.runDeferredEvents ();
+ newMenu.sendEvent (SWT.Show);
+ // widget could be disposed at this point
+ }
+ return null;
+}
+
+LRESULT WM_KEYDOWN (int wParam, int lParam) {
+
+ /* Ignore repeating modifier keys by testing key down state */
+ switch (wParam) {
+ case OS.VK_SHIFT:
+ case OS.VK_MENU:
+ case OS.VK_CONTROL:
+ case OS.VK_CAPITAL:
+ case OS.VK_NUMLOCK:
+ case OS.VK_SCROLL:
+ if ((lParam & 0x40000000) != 0) return null;
+ }
+
+ /* Clear last key and last ascii because a new key has been typed */
+ Display display = getDisplay ();
+ display.lastAscii = display.lastKey = 0;
+ display.lastVirtual = display.lastNull = false;
+
+ /*
+ * Do not report a lead byte as a key pressed.
+ */
+ if (!OS.IsUnicode && OS.IsDBLocale) {
+ byte lead = (byte) (wParam & 0xFF);
+ if (OS.IsDBCSLeadByte (lead)) return null;
+ }
+
+ /* Map the virtual key */
+ /*
+ * Bug on WinCE. MapVirtualKey() returns incorrect values.
+ * The fix is to rely on a key mappings table to determine
+ * whether the key event must be sent now or if a WM_CHAR
+ * event will follow.
+ */
+ int mapKey = OS.IsWinCE ? 0 : OS.MapVirtualKey (wParam, 2);
+
+ /*
+ * Bug in Windows 95 and NT. When the user types an accent key such
+ * as ^ to get an accented character on a German keyboard, the accent
+ * key should be ignored and the next key that the user types is the
+ * accented key. On Windows 95 and NT, a call to ToAscii (), clears the
+ * accented state such that the next WM_CHAR loses the accent. The fix
+ * is to detect the accent key stroke (called a dead key) by testing the
+ * high bit of the value returned by MapVirtualKey (). A further problem
+ * is that the high bit on Windows NT is bit 32 while the high bit on
+ * Windows 95 is bit 16. They should both be bit 32.
+ *
+ * NOTE: This code is used to avoid a call to ToAscii ().
+ */
+ if (OS.IsWinNT) {
+ if ((mapKey & 0x80000000) != 0) return null;
+ } else {
+ if ((mapKey & 0x8000) != 0) return null;
+ }
+
+ /*
+ * Bug in Windows. When the accent key is generated on an international
+ * keyboard using Ctrl+Alt or the special key, MapVirtualKey () does not
+ * have the high bit set indicating that this is an accent key stroke.
+ * The fix is to iterate through all known accent, mapping them back to
+ * their corresponding virtual key and key state. If the virtual key
+ * and key state match the current key, then this is an accent that has
+ * been generated using an international keyboard and calling ToAscii ()
+ * will clear the accent state.
+ *
+ * NOTE: This code is used to avoid a call to ToAscii ().
+ */
+ if (!OS.IsWinCE) {
for (int i=0; i<ACCENTS.length; i++) {
- int value = OS.VkKeyScan (ACCENTS [i]);
- if ((value & 0xFF) == wParam && (value & 0x600) == 0x600) {
- return null;
- }
- }
- }
-
- /*
- * If we are going to get a WM_CHAR, ensure that last key has
- * the correct character value for the key down and key up
- * events. It is not sufficient to ignore the WM_KEYDOWN
- * (when we know we are going to get a WM_CHAR) and compute
- * the key in WM_CHAR because there is not enough information
- * by the time we get the WM_CHAR. For example, when the user
- * types Ctrl+Shift+6 on a US keyboard, we get a WM_CHAR with
- * wParam=30. When the user types Ctrl+Shift+6 on a German
- * keyboard, we also get a WM_CHAR with wParam=30. On the US
- * keyboard Shift+6 is ^, on the German keyboard Shift+6 is &.
- * There is no way to map wParam=30 in WM_CHAR to the correct
- * value. Also, on international keyboards, the control key
- * may be down when the user has not entered a control character.
- */
- display.lastKey = wParam;
- display.lastVirtual = (mapKey == 0);
- if (display.lastVirtual) {
- /*
- * Feature in Windows. The virtual key VK_DELETE is not
- * treated as both a virtual key and an ASCII key by Windows.
- * Therefore, we will not receive a WM_CHAR for this key.
- * The fix is to treat VK_DELETE as a special case and map
- * the ASCII value explictly (Delete is 0x7F).
- */
- if (display.lastKey == OS.VK_DELETE) display.lastAscii = 0x7F;
- /*
- * It is possible to get a WM_CHAR for a virtual key when
- * Num Lock is on. If the user types Home while Num Lock
- * is down, a WM_CHAR is issued with WPARM=55 (for the
- * character 7). If we are going to get a WM_CHAR we need
- * to ensure that the last key has the correct value. Note
- * that Ctrl+Home does not issue a WM_CHAR when Num Lock is
- * down.
- */
- if (OS.VK_NUMPAD0 <= display.lastKey && display.lastKey <= OS.VK_DIVIDE) {
- if (display.asciiKey (display.lastKey) != 0) return null;
- display.lastAscii = display.numpadKey (display.lastKey);
- }
- } else {
- /*
- * Get the shifted state or convert to lower case if necessary.
- * If the user types Ctrl+A, LastKey should be 'a', not 'A'. If
- * the user types Ctrl+Shift+A, LastKey should be 'A'. If the user
- * types Ctrl+Shift+6, the value of LastKey will depend on the
- * international keyboard.
- */
- if (OS.GetKeyState (OS.VK_SHIFT) < 0) {
- display.lastKey = display.shiftedKey (display.lastKey);
- if (display.lastKey == 0) display.lastKey = wParam;
- } else {
- display.lastKey = OS.CharLower ((short) mapKey);
- }
- /*
- * Some key combinations map to Windows ASCII keys depending
- * on the keyboard. For example, Ctrl+Alt+Q maps to @ on a
- * German keyboard. If the current key combination is special,
- * the correct character is placed in wParam for processing in
- * WM_CHAR. If this is the case, issue the key down event from
- * inside WM_CHAR.
- */
- int asciiKey = display.asciiKey (wParam);
- if (asciiKey != 0) {
- /*
- * When the user types Ctrl+Space, ToAscii () maps this to
- * Space. Normally, ToAscii () maps a key to a different
- * key if both a WM_KEYDOWN and a WM_CHAR will be issued.
- * To avoid the extra SWT.KeyDown, look for VK_SPACE and
- * issue the event from WM_CHAR.
- */
- if (asciiKey == OS.VK_SPACE) {
- display.lastVirtual = true;
- return null;
- }
- if (asciiKey != wParam) return null;
- }
-
- /*
- * If the control key is not down at this point, then
- * the key that was pressed was an accent key. In that
- * case, do not issue the key down event.
- */
- if (OS.GetKeyState (OS.VK_CONTROL) >= 0) {
- display.lastKey = 0;
- return null;
- }
-
- /*
- * Virtual keys such as VK_RETURN are both virtual and ASCII keys.
- * Normally, these are marked virtual in WM_CHAR. Since we will not
- * be getting a WM_CHAR for the key at this point, we need to test
- * LastKey to see if it is virtual. This happens when the user types
- * Ctrl+Tab.
- */
- display.lastVirtual = display.isVirtualKey (wParam);
- display.lastAscii = display.controlKey (display.lastKey);
- display.lastNull = display.lastAscii == 0 && display.lastKey == '@';
- }
- if (!sendKeyEvent (SWT.KeyDown, OS.WM_KEYDOWN, wParam, lParam)) {
- return LRESULT.ZERO;
- }
- return null;
-}
-
-LRESULT WM_KEYUP (int wParam, int lParam) {
- Display display = getDisplay ();
-
- /* Check for hardware keys */
- if (OS.IsWinCE) {
- if (OS.VK_APP1 <= wParam && wParam <= OS.VK_APP6) {
- display.lastKey = display.lastAscii = 0;
- display.lastVirtual = display.lastNull = false;
- Event event = new Event ();
- event.detail = wParam - OS.VK_APP1 + 1;
- /* Check the bit 30 to get the key state */
- int type = (lParam & 0x40000000) != 0 ? SWT.HardKeyUp : SWT.HardKeyDown;
- if (setInputState (event, type)) sendEvent (type, event);
- return null;
- }
- }
-
- /*
- * If the key up is not hooked, reset last key
- * and last ascii in case the key down is hooked.
- */
- if (!hooks (SWT.KeyUp) && !display.filters (SWT.KeyUp)) {
- display.lastKey = display.lastAscii = 0;
- display.lastVirtual = display.lastNull = false;
- return null;
- }
-
- /* Map the virtual key. */
- /*
- * Bug on WinCE. MapVirtualKey() returns incorrect values.
- * The fix is to rely on a key mappings table to determine
- * whether the key event must be sent now or if a WM_CHAR
- * event will follow.
- */
- int mapKey = OS.IsWinCE ? 0 : OS.MapVirtualKey (wParam, 2);
-
- /*
- * Bug in Windows 95 and NT. When the user types an accent key such
- * as ^ to get an accented character on a German keyboard, the accent
- * key should be ignored and the next key that the user types is the
- * accented key. On Windows 95 and NT, a call to ToAscii (), clears the
- * accented state such that the next WM_CHAR loses the accent. The fix
- * is to detect the accent key stroke (called a dead key) by testing the
- * high bit of the value returned by MapVirtualKey (). A further problem
- * is that the high bit on Windows NT is bit 32 while the high bit on
- * Windows 95 is bit 16. They should both be bit 32.
- *
- * NOTE: This code is used to avoid a call to ToAscii ().
- *
- */
- if (OS.IsWinNT) {
- if ((mapKey & 0x80000000) != 0) return null;
- } else {
- if ((mapKey & 0x8000) != 0) return null;
- }
-
- /*
- * Bug in Windows. When the accent key is generated on an international
- * keyboard using Ctrl+Alt or the special key, MapVirtualKey () does not
- * have the high bit set indicating that this is an accent key stroke.
- * The fix is to iterate through all known accent, mapping them back to
- * their corresponding virtual key and key state. If the virtual key
- * and key state match the current key, then this is an accent that has
- * been generated using an international keyboard.
- *
- * NOTE: This code is used to avoid a call to ToAscii ().
- */
- if (!OS.IsWinCE) {
- for (int i=0; i<ACCENTS.length; i++) {
- int value = OS.VkKeyScan (ACCENTS [i]);
- if ((value & 0xFF) == wParam && (value & 0x600) == 0x600) {
- display.lastKey = display.lastAscii = 0;
- display.lastVirtual = display.lastNull = false;
- return null;
- }
- }
- }
-
- display.lastVirtual = (mapKey == 0);
- if (display.lastVirtual) {
- display.lastKey = wParam;
- } else {
- if (display.lastKey == 0) {
- display.lastAscii = 0;
- display.lastNull = false;
- return null;
- }
- display.lastVirtual = display.isVirtualKey (display.lastKey);
- }
-
- LRESULT result = null;
- if (!sendKeyEvent (SWT.KeyUp, OS.WM_KEYUP, wParam, lParam)) {
- result = LRESULT.ZERO;
- }
- display.lastKey = display.lastAscii = 0;
- display.lastVirtual = display.lastNull = false;
- return result;
-}
-
-LRESULT WM_KILLFOCUS (int wParam, int lParam) {
- int code = callWindowProc (OS.WM_KILLFOCUS, wParam, lParam);
- Display display = getDisplay ();
- Shell shell = getShell ();
-
- /*
- * It is possible (but unlikely), that application
- * code could have disposed the widget in the focus
- * out event. If this happens keep going to send
- * the deactivate events.
- */
- sendEvent (SWT.FocusOut);
- // widget could be disposed at this point
-
- /*
- * It is possible that the shell may be
- * disposed at this point. If this happens
- * don't send the activate and deactivate
- * events.
- */
- if (!shell.isDisposed ()) {
- Control control = display.findControl (wParam);
- if (control == null || shell != control.getShell ()) {
- shell.setActiveControl (null);
- }
- }
-
- /*
- * It is possible (but unlikely), that application
- * code could have disposed the widget in the focus
- * or deactivate events. If this happens, end the
- * processing of the Windows message by returning
- * zero as the result of the window proc.
- */
- if (isDisposed ()) return LRESULT.ZERO;
- if (code == 0) return LRESULT.ZERO;
- return new LRESULT (code);
-}
-
-LRESULT WM_LBUTTONDBLCLK (int wParam, int lParam) {
- /*
- * Feature in Windows. Windows sends the following
- * messages when the user double clicks the mouse:
- *
- * WM_LBUTTONDOWN - mouse down
- * WM_LBUTTONUP - mouse up
- * WM_LBUTTONDBLCLK - double click
- * WM_LBUTTONUP - mouse up
- *
- * Applications that expect matching mouse down/up
- * pairs will not see the second mouse down. The
- * fix is to send a mouse down event.
- */
- sendMouseEvent (SWT.MouseDown, 1, OS.WM_LBUTTONDOWN, wParam, lParam);
- sendMouseEvent (SWT.MouseDoubleClick, 1, OS.WM_LBUTTONDBLCLK, wParam, lParam);
- int result = callWindowProc (OS.WM_LBUTTONDBLCLK, wParam, lParam);
- if (OS.GetCapture () != handle) OS.SetCapture (handle);
- return new LRESULT (result);
-}
-
-LRESULT WM_LBUTTONDOWN (int wParam, int lParam) {
- boolean dragging = false, mouseDown = true;
- boolean dragDetect = hooks (SWT.DragDetect);
- if (dragDetect) {
- if (!OS.IsWinCE) {
- /*
- * Feature in Windows. It's possible that the drag
- * operation will not be started while the mouse is
- * down, meaning that the mouse should be captured.
- * This can happen when the user types the ESC key
- * to cancel the drag. The fix is to query the state
- * of the mouse and capture the mouse accordingly.
- */
- POINT pt = new POINT ();
- pt.x = (short) (lParam & 0xFFFF);
- pt.y = (short) (lParam >> 16);
- OS.ClientToScreen(handle, pt);
- dragging = OS.DragDetect (handle, pt);
- mouseDown = OS.GetKeyState (OS.VK_LBUTTON) < 0;
- }
- }
- sendMouseEvent (SWT.MouseDown, 1, OS.WM_LBUTTONDOWN, wParam, lParam);
- int result = callWindowProc (OS.WM_LBUTTONDOWN, wParam, lParam);
- if (OS.IsPPC) {
- if (menu != null && !menu.isDisposed ()) {
- int x = (short) (lParam & 0xFFFF);
- int y = (short) (lParam >> 16);
- SHRGINFO shrg = new SHRGINFO ();
- shrg.cbSize = SHRGINFO.sizeof;
- shrg.hwndClient = handle;
- shrg.ptDown_x = x;
- shrg.ptDown_y = y;
- shrg.dwFlags = OS.SHRG_RETURNCMD;
- int type = OS.SHRecognizeGesture (shrg);
- if (type == OS.GN_CONTEXTMENU) {
- menu.setVisible (true);
- }
- }
- }
- if (mouseDown) {
- if (OS.GetCapture () != handle) OS.SetCapture (handle);
- }
- if (dragging) {
- postEvent (SWT.DragDetect);
- } else {
- if (dragDetect) {
- /*
- * Feature in Windows. DragDetect() captures the mouse
- * and tracks its movement until the user releases the
- * left mouse button, presses the ESC key, or moves the
- * mouse outside the drag rectangle. If the user moves
- * the mouse outside of the drag rectangle, DragDetect()
- * returns true and a drag and drop operation can be
- * started. When the left mouse button is released or
- * the ESC key is pressed, these events are consumed by
- * DragDetect() so that application code that matches
- * mouse down/up pairs or looks for the ESC key will not
- * function properly. The fix is to send these events
- * when the drag has not started.
- *
- * NOTE: For now, don't send a fake WM_KEYDOWN/WM_KEYUP
- * events for the ESC key. This would require computing
- * wParam (the key) and lParam (the repeat count, scan code,
- * extended-key flag, context code, previous key-state flag,
- * and transition-state flag) which is non-trivial.
- */
- if (OS.GetKeyState (OS.VK_ESCAPE) >= 0) {
- OS.SendMessage (handle, OS.WM_LBUTTONUP, wParam, lParam);
- }
- }
- }
- return new LRESULT (result);
-}
-
-LRESULT WM_LBUTTONUP (int wParam, int lParam) {
- sendMouseEvent (SWT.MouseUp, 1, OS.WM_LBUTTONUP, wParam, lParam);
- int result = callWindowProc (OS.WM_LBUTTONUP, wParam, lParam);
- if ((wParam & (OS.MK_LBUTTON | OS.MK_MBUTTON | OS.MK_RBUTTON)) == 0) {
- if (OS.GetCapture () == handle) OS.ReleaseCapture ();
- }
- return new LRESULT (result);
-}
-
-LRESULT WM_MBUTTONDBLCLK (int wParam, int lParam) {
- /*
- * Feature in Windows. Windows sends the following
- * messages when the user double clicks the mouse:
- *
- * WM_MBUTTONDOWN - mouse down
- * WM_MBUTTONUP - mouse up
- * WM_MLBUTTONDBLCLK - double click
- * WM_MBUTTONUP - mouse up
- *
- * Applications that expect matching mouse down/up
- * pairs will not see the second mouse down. The
- * fix is to send a mouse down event.
- */
- sendMouseEvent (SWT.MouseDown, 2, OS.WM_MBUTTONDOWN, wParam, lParam);
- sendMouseEvent (SWT.MouseDoubleClick, 2, OS.WM_MBUTTONDBLCLK, wParam, lParam);
- int result = callWindowProc (OS.WM_MBUTTONDBLCLK, wParam, lParam);
- if (OS.GetCapture () != handle) OS.SetCapture (handle);
- return new LRESULT (result);
-}
-
-LRESULT WM_MBUTTONDOWN (int wParam, int lParam) {
- sendMouseEvent (SWT.MouseDown, 2, OS.WM_MBUTTONDOWN, wParam, lParam);
- int result = callWindowProc (OS.WM_MBUTTONDOWN, wParam, lParam);
- if (OS.GetCapture () != handle) OS.SetCapture(handle);
- return new LRESULT (result);
-}
-
-LRESULT WM_MBUTTONUP (int wParam, int lParam) {
- sendMouseEvent (SWT.MouseUp, 2, OS.WM_MBUTTONUP, wParam, lParam);
- int result = callWindowProc (OS.WM_MBUTTONUP, wParam, lParam);
- if ((wParam & (OS.MK_LBUTTON | OS.MK_MBUTTON | OS.MK_RBUTTON)) == 0) {
- if (OS.GetCapture () == handle) OS.ReleaseCapture ();
- }
- return new LRESULT (result);
-}
-
-LRESULT WM_MEASUREITEM (int wParam, int lParam) {
- MEASUREITEMSTRUCT struct = new MEASUREITEMSTRUCT ();
- OS.MoveMemory (struct, lParam, MEASUREITEMSTRUCT.sizeof);
- if (struct.CtlType == OS.ODT_MENU) {
- Decorations shell = menuShell ();
- MenuItem item = shell.findMenuItem (struct.itemID);
- if (item == null) return null;
- return item.wmMeasureChild (wParam, lParam);
- }
- int hwnd = OS.GetDlgItem (handle, struct.CtlID);
- Control control = WidgetTable.get (hwnd);
- if (control == null) return null;
- return control.wmMeasureChild (wParam, lParam);
-}
-
-LRESULT WM_MENUCHAR (int wParam, int lParam) {
- /*
- * Feature in Windows. When the user types Alt+<key>
- * and <key> does not match a mnemonic in the System
- * menu or the menu bar, Windows beeps. This beep is
- * unexpected and unwanted by applications that look
- * for Alt+<key>. The fix is to detect the case and
- * stop Windows from beeping by closing the menu.
- */
- int type = wParam >> 16;
- if (type == 0 || type == OS.MF_SYSMENU) {
- Display display = getDisplay ();
- display.mnemonicKeyHit = false;
- return new LRESULT (OS.MNC_CLOSE << 16);
- }
- return null;
-}
-
-LRESULT WM_MENUSELECT (int wParam, int lParam) {
- int code = wParam >> 16;
- Shell shell = getShell ();
- if (code == -1 && lParam == 0) {
- Display display = getDisplay ();
- display.mnemonicKeyHit = true;
- Menu menu = shell.activeMenu;
- while (menu != null) {
- /*
- * It is possible (but unlikely), that application
- * code could have disposed the widget in the hide
- * event. If this happens, stop searching up the
- * parent list because there is no longer a link
- * to follow.
- */
- menu.sendEvent (SWT.Hide);
- if (menu.isDisposed ()) break;
- menu = menu.getParentMenu ();
- }
- /*
- * The shell may be disposed because of sending the hide
- * event to the last active menu menu but setting a field
- * to null in a destroyed widget is not harmful.
- */
- shell.activeMenu = null;
- return null;
- }
- if ((code & OS.MF_SYSMENU) != 0) return null;
- if ((code & OS.MF_HILITE) != 0) {
- MenuItem item = null;
- Decorations menuShell = menuShell ();
- if ((code & OS.MF_POPUP) != 0) {
- int index = wParam & 0xFFFF;
- MENUITEMINFO info = new MENUITEMINFO ();
- info.cbSize = MENUITEMINFO.sizeof;
- info.fMask = OS.MIIM_SUBMENU;
- if (OS.GetMenuItemInfo (lParam, index, true, info)) {
- Menu newMenu = menuShell.findMenu (info.hSubMenu);
- if (newMenu != null) item = newMenu.cascade;
- }
- } else {
- Menu newMenu = menuShell.findMenu (lParam);
- if (newMenu != null) {
- int id = wParam & 0xFFFF;
- item = menuShell.findMenuItem (id);
- }
- Menu oldMenu = shell.activeMenu;
- if (oldMenu != null) {
- Menu ancestor = oldMenu;
- while (ancestor != null && ancestor != newMenu) {
- ancestor = ancestor.getParentMenu ();
- }
- if (ancestor == newMenu) {
- ancestor = oldMenu;
- while (ancestor != newMenu) {
- /*
- * It is possible (but unlikely), that application
- * code could have disposed the widget in the hide
- * event or the item about to be armed. If this
- * happens, stop searching up the ancestor list
- * because there is no longer a link to follow.
- */
- ancestor.sendEvent (SWT.Hide);
- if (ancestor.isDisposed ()) break;
- ancestor = ancestor.getParentMenu ();
- }
- /*
- * The shell and/or the item could be disposed when
- * processing hide events from above. If this happens,
- * ensure that the shell is not accessed and that no
- * arm event is sent to the item.
- */
- if (!shell.isDisposed ()) {
- if (newMenu != null && newMenu.isDisposed ()) {
- newMenu = null;
- }
- shell.activeMenu = newMenu;
- }
- if (item != null && item.isDisposed ()) item = null;
- }
- }
- }
- if (item != null) item.sendEvent (SWT.Arm);
- }
- return null;
-}
-
-LRESULT WM_MOUSEACTIVATE (int wParam, int lParam) {
- return null;
-}
-
-LRESULT WM_MOUSEHOVER (int wParam, int lParam) {
- sendMouseEvent (SWT.MouseHover, 0, OS.WM_MOUSEHOVER, wParam, lParam);
- return null;
-}
-
-LRESULT WM_MOUSELEAVE (int wParam, int lParam) {
- int pos = OS.GetMessagePos ();
- POINT pt = new POINT ();
- pt.x = (short) (pos & 0xFFFF);
- pt.y = (short) (pos >> 16);
- OS.ScreenToClient (handle, pt);
- lParam = pt.x | (pt.y << 16);
- sendMouseEvent (SWT.MouseExit, 0, OS.WM_MOUSELEAVE, wParam, lParam);
- return null;
-}
-
-LRESULT WM_MOUSEMOVE (int wParam, int lParam) {
- if (!OS.IsWinCE) {
- Display display = getDisplay ();
- boolean mouseEnter = hooks (SWT.MouseEnter) || display.filters (SWT.MouseEnter);
- boolean mouseExit = hooks (SWT.MouseExit) || display.filters (SWT.MouseExit);
- boolean mouseHover = hooks (SWT.MouseHover) || display.filters (SWT.MouseHover);
- if (mouseEnter || mouseExit || mouseHover) {
- TRACKMOUSEEVENT lpEventTrack = new TRACKMOUSEEVENT ();
- lpEventTrack.cbSize = TRACKMOUSEEVENT.sizeof;
- lpEventTrack.dwFlags = OS.TME_QUERY;
- lpEventTrack.hwndTrack = handle;
- OS.TrackMouseEvent (lpEventTrack);
- if (lpEventTrack.dwFlags == 0) {
- lpEventTrack.dwFlags = OS.TME_LEAVE | OS.TME_HOVER;
- lpEventTrack.hwndTrack = handle;
- OS.TrackMouseEvent (lpEventTrack);
- if (mouseEnter) {
- sendMouseEvent (SWT.MouseEnter, 0, OS.WM_MOUSEMOVE, wParam, lParam);
- }
- } else {
- lpEventTrack.dwFlags = OS.TME_HOVER;
- OS.TrackMouseEvent (lpEventTrack);
- }
- }
- }
- Display display = getDisplay ();
- int pos = OS.GetMessagePos ();
- if (pos != display.lastMouse) {
- display.lastMouse = pos;
- sendMouseEvent (SWT.MouseMove, 0, OS.WM_MOUSEMOVE, wParam, lParam);
- }
- return null;
-}
-
-LRESULT WM_MOUSEWHEEL (int wParam, int lParam) {
- return null;
-}
-
-LRESULT WM_MOVE (int wParam, int lParam) {
- sendEvent (SWT.Move);
- // widget could be disposed at this point
- return null;
-}
-
-LRESULT WM_NCACTIVATE (int wParam, int lParam) {
- return null;
-}
-
-LRESULT WM_NCCALCSIZE (int wParam, int lParam) {
- return null;
-}
-
-LRESULT WM_NCHITTEST (int wParam, int lParam) {
- if (!OS.IsWindowEnabled (handle)) return null;
- if (!isActive ()) return new LRESULT (OS.HTTRANSPARENT);
- return null;
-}
-
-LRESULT WM_NOTIFY (int wParam, int lParam) {
- NMHDR hdr = new NMHDR ();
- OS.MoveMemory (hdr, lParam, NMHDR.sizeof);
- int hwnd = hdr.hwndFrom;
- if (hwnd == 0) return null;
- Control control = WidgetTable.get (hwnd);
- if (control == null) return null;
- return control.wmNotifyChild (wParam, lParam);
-}
-
-LRESULT WM_PAINT (int wParam, int lParam) {
-
- /* Exit early - don't draw the background */
- if (!hooks (SWT.Paint) && !filters (SWT.Paint)) {
- return null;
- }
-
- /* Get the damage */
- int result = 0;
- if (OS.IsWinCE) {
- RECT rect = new RECT ();
- OS.GetUpdateRect (handle, rect, false);
- result = callWindowProc (OS.WM_PAINT, wParam, lParam);
- OS.InvalidateRect (handle, rect, false);
- } else {
- int rgn = OS.CreateRectRgn (0, 0, 0, 0);
- OS.GetUpdateRgn (handle, rgn, false);
- result = callWindowProc (OS.WM_PAINT, wParam, lParam);
- OS.InvalidateRgn (handle, rgn, false);
- OS.DeleteObject (rgn);
- }
-
- /* Create the paint GC */
- PAINTSTRUCT ps = new PAINTSTRUCT ();
- GCData data = new GCData ();
- data.ps = ps;
- GC gc = GC.win32_new (this, data);
-
- /* Send the paint event */
- Event event = new Event ();
- event.gc = gc;
- event.x = ps.left;
- event.y = ps.top;
- event.width = ps.right - ps.left;
- event.height = ps.bottom - ps.top;
- /*
- * It is possible (but unlikely), that application
- * code could have disposed the widget in the paint
- * event. If this happens, attempt to give back the
- * paint GC anyways because this is a scarce Windows
- * resource.
- */
- sendEvent (SWT.Paint, event);
- // widget could be disposed at this point
-
- /* Dispose the paint GC */
- event.gc = null;
- gc.dispose ();
-
- if (result == 0) return LRESULT.ZERO;
- return new LRESULT (result);
-}
-
-LRESULT WM_PALETTECHANGED (int wParam, int lParam) {
- return null;
-}
-
-LRESULT WM_PASTE (int wParam, int lParam) {
- return null;
-}
-
-LRESULT WM_PRINTCLIENT (int wParam, int lParam) {
- return null;
-}
-
-LRESULT WM_QUERYENDSESSION (int wParam, int lParam) {
- return null;
-}
-
-LRESULT WM_QUERYNEWPALETTE (int wParam, int lParam) {
- return null;
-}
-
-LRESULT WM_QUERYOPEN (int wParam, int lParam) {
- return null;
-}
-
-LRESULT WM_RBUTTONDBLCLK (int wParam, int lParam) {
- /*
- * Feature in Windows. Windows sends the following
- * messages when the user double clicks the mouse:
- *
- * WM_RBUTTONDOWN - mouse down
- * WM_RBUTTONUP - mouse up
- * WM_RBUTTONDBLCLK - double click
- * WM_LBUTTONUP - mouse up
- *
- * Applications that expect matching mouse down/up
- * pairs will not see the second mouse down. The
- * fix is to send a mouse down event.
- */
- sendMouseEvent (SWT.MouseDown, 3, OS.WM_RBUTTONDOWN, wParam, lParam);
- sendMouseEvent (SWT.MouseDoubleClick, 3, OS.WM_RBUTTONDBLCLK, wParam, lParam);
- int result = callWindowProc (OS.WM_RBUTTONDBLCLK, wParam, lParam);
- if (OS.GetCapture () != handle) OS.SetCapture (handle);
- return new LRESULT (result);
-}
-
-LRESULT WM_RBUTTONDOWN (int wParam, int lParam) {
- sendMouseEvent (SWT.MouseDown, 3, OS.WM_RBUTTONDOWN, wParam, lParam);
- int result = callWindowProc (OS.WM_RBUTTONDOWN, wParam, lParam);
- if (OS.GetCapture () != handle) OS.SetCapture (handle);
- return new LRESULT (result);
-}
-
-LRESULT WM_RBUTTONUP (int wParam, int lParam) {
- sendMouseEvent (SWT.MouseUp, 3, OS.WM_RBUTTONUP, wParam, lParam);
- int result = callWindowProc (OS.WM_RBUTTONUP, wParam, lParam);
- if ((wParam & (OS.MK_LBUTTON | OS.MK_MBUTTON | OS.MK_RBUTTON)) == 0) {
- if (OS.GetCapture () == handle) OS.ReleaseCapture ();
- }
- return new LRESULT (result);
-}
-
-LRESULT WM_SETCURSOR (int wParam, int lParam) {
- int hitTest = lParam & 0xFFFF;
- if (hitTest == OS.HTCLIENT) {
- Control control = WidgetTable.get (wParam);
- if (control == null) return null;
- int hCursor = control.findCursor ();
- if (hCursor != 0) {
- OS.SetCursor (hCursor);
- return LRESULT.ONE;
- }
- }
- return null;
-}
-
-LRESULT WM_SETFOCUS (int wParam, int lParam) {
- int code = callWindowProc (OS.WM_SETFOCUS, wParam, lParam);
- Shell shell = getShell ();
-
- /*
- * It is possible (but unlikely), that application
- * code could have disposed the widget in the focus
- * in event. If this happens keep going to send
- * the activate events.
- */
- sendEvent (SWT.FocusIn);
- // widget could be disposed at this point
-
- /*
- * It is possible that the shell may be
- * disposed at this point. If this happens
- * don't send the activate and deactivate
- * events.
- */
- if (!shell.isDisposed ()) {
- shell.setActiveControl (this);
- }
-
- /*
- * It is possible (but unlikely), that application
- * code could have disposed the widget in the focus
- * or activate events. If this happens, end the
- * processing of the Windows message by returning
- * zero as the result of the window proc.
- */
- if (isDisposed ()) return LRESULT.ZERO;
- if (code == 0) return LRESULT.ZERO;
- return new LRESULT (code);
-}
-
-LRESULT WM_SETTINGCHANGE (int wParam, int lParam) {
- return null;
-}
-
-LRESULT WM_SETFONT (int wParam, int lParam) {
- return null;
-}
-
-LRESULT WM_SETREDRAW (int wParam, int lParam) {
- return null;
-}
-
-LRESULT WM_SHOWWINDOW (int wParam, int lParam) {
- return null;
-}
-
-LRESULT WM_SIZE (int wParam, int lParam) {
- sendEvent (SWT.Resize);
- // widget could be disposed at this point
- return null;
-}
-
-LRESULT WM_SYSCHAR (int wParam, int lParam) {
- Display display = getDisplay ();
-
- /* Set last key and last ascii because a new key has been typed */
- display.lastAscii = display.lastKey = wParam;
- display.lastVirtual = display.isVirtualKey (wParam);
- display.lastNull = false;
-
- /* Do not issue a key down if a menu bar mnemonic was invoked */
- if (!hooks (SWT.KeyDown) && !display.filters (SWT.KeyDown)) {
- return null;
- }
- display.mnemonicKeyHit = true;
- int result = callWindowProc (OS.WM_SYSCHAR, wParam, lParam);
- if (!display.mnemonicKeyHit) {
- sendKeyEvent (SWT.KeyDown, OS.WM_SYSCHAR, wParam, lParam);
- }
- display.mnemonicKeyHit = false;
- return new LRESULT (result);
-}
-
-LRESULT WM_SYSCOLORCHANGE (int wParam, int lParam) {
- return null;
-}
-
-LRESULT WM_SYSCOMMAND (int wParam, int lParam) {
- /*
- * Check to see if the command is a system command or
- * a user menu item that was added to the System menu.
- * When a user item is added to the System menu,
- * WM_SYSCOMMAND must always return zero.
- */
- if ((wParam & 0xF000) == 0) {
- Decorations shell = menuShell ();
- if (shell.isEnabled ()) {
- MenuItem item = shell.findMenuItem (wParam & 0xFFFF);
- if (item != null) item.wmCommandChild (wParam, lParam);
- }
- return LRESULT.ZERO;
- }
-
- /* Process the System Command */
- int cmd = wParam & 0xFFF0;
- switch (cmd) {
- case OS.SC_CLOSE:
- int hwndShell = menuShell ().handle;
- int bits = OS.GetWindowLong (hwndShell, OS.GWL_STYLE);
- if ((bits & OS.WS_SYSMENU) == 0) return LRESULT.ZERO;
- break;
- case OS.SC_KEYMENU:
- if (hooks (SWT.KeyDown) || hooks (SWT.KeyUp)) {
- Decorations shell = menuShell ();
- Menu menu = shell.getMenuBar ();
- if (menu != null) {
- char key = mbcsToWcs (lParam);
- if (key != 0) {
- key = Character.toUpperCase (key);
- MenuItem [] items = menu.getItems ();
- for (int i=0; i<items.length; i++) {
- MenuItem item = items [i];
- String text = item.getText ();
- char mnemonic = findMnemonic (text);
- if (text.length () > 0 && mnemonic == 0) {
- char ch = text.charAt (0);
- if (Character.toUpperCase (ch) == key) {
- Display display = getDisplay ();
- display.mnemonicKeyHit = false;
- return LRESULT.ZERO;
- }
- }
- }
- }
- }
- }
- // FALL THROUGH
- case OS.SC_HSCROLL:
- case OS.SC_VSCROLL:
- /*
- * Do not allow keyboard traversal of the menu bar
- * or scrolling when the shell is not enabled.
- */
- Decorations shell = menuShell ();
- if (!shell.isEnabled () || !shell.isActive ()) {
- return LRESULT.ZERO;
- }
- break;
- case OS.SC_MINIMIZE:
- /* Save the focus widget when the shell is minimized */
- menuShell ().saveFocus ();
- break;
- }
- return null;
-}
-
-LRESULT WM_SYSKEYDOWN (int wParam, int lParam) {
- /*
- * Feature in Windows. WM_SYSKEYDOWN is sent when
- * the user presses ALT-<aKey> or F10 without the ALT key.
- * In order to issue events for F10 (without the ALT key)
- * but ignore all other key presses without the ALT key,
- * make F10 a special case.
- */
- if (wParam != OS.VK_F10) {
- /* Make sure WM_SYSKEYDOWN was sent by ALT-<aKey>. */
- if ((lParam & 0x20000000) == 0) return null;
- }
-
- /* Ignore repeating modifier keys by testing key down state */
- switch (wParam) {
- case OS.VK_SHIFT:
- case OS.VK_MENU:
- case OS.VK_CONTROL:
- case OS.VK_CAPITAL:
- case OS.VK_NUMLOCK:
- case OS.VK_SCROLL:
- if ((lParam & 0x40000000) != 0) return null;
- }
-
- /* Clear last key and last ascii because a new key has been typed */
- Display display = getDisplay ();
- display.lastAscii = display.lastKey = 0;
- display.lastVirtual = display.lastNull = false;
-
- /* If are going to get a WM_SYSCHAR, ignore this message. */
- /*
- * Bug on WinCE. MapVirtualKey() returns incorrect values.
- * The fix is to rely on a key mappings table to determine
- * whether the key event must be sent now or if a WM_SYSCHAR
- * event will follow.
- */
- if (!OS.IsWinCE) {
- if (OS.MapVirtualKey (wParam, 2) != 0) {
- /*
- * Feature in Windows. MapVirtualKey() indicates that
- * a WM_SYSCHAR message will occur for Alt+Enter but
- * this message never happens. The fix is to issue the
- * event from WM_SYSKEYDOWN and map VK_RETURN to '\r'.
- */
- if (wParam != OS.VK_RETURN) return null;
- display.lastAscii = '\r';
- }
- }
- display.lastKey = wParam;
- display.lastVirtual = true;
-
- /*
- * Feature in Windows. The virtual key VK_DELETE is not
- * treated as both a virtual key and an ASCII key by Windows.
- * Therefore, we will not receive a WM_CHAR for this key.
- * The fix is to treat VK_DELETE as a special case and map
- * the ASCII value explictly (Delete is 0x7F).
- */
- if (display.lastKey == OS.VK_DELETE) display.lastAscii = 0x7F;
-
- /*
- * It is possible to get a WM_CHAR for a virtual key when
- * Num Lock is on. If the user types Home while Num Lock
- * is down, a WM_CHAR is issued with WPARM=55 (for the
- * character 7). If we are going to get a WM_CHAR we need
- * to ensure that the last key has the correct value. Note
- * that Ctrl+Home does not issue a WM_CHAR when Num Lock is
- * down.
- */
- if (OS.VK_NUMPAD0 <= display.lastKey && display.lastKey <= OS.VK_DIVIDE) {
- if (display.asciiKey (display.lastKey) != 0) return null;
- }
-
- if (!sendKeyEvent (SWT.KeyDown, OS.WM_SYSKEYDOWN, wParam, lParam)) {
- return LRESULT.ZERO;
- }
- return null;
-}
-
-LRESULT WM_SYSKEYUP (int wParam, int lParam) {
- return WM_KEYUP (wParam, lParam);
-}
-
-LRESULT WM_TIMER (int wParam, int lParam) {
- return null;
-}
-
-LRESULT WM_UNDO (int wParam, int lParam) {
- return null;
-}
-
-LRESULT WM_VSCROLL (int wParam, int lParam) {
- if (lParam == 0) return null;
- Control control = WidgetTable.get (lParam);
- if (control == null) return null;
- return control.wmScrollChild (wParam, lParam);
-}
-
-LRESULT WM_WINDOWPOSCHANGING (int wParam, int lParam) {
- return null;
-}
-
-LRESULT wmColorChild (int wParam, int lParam) {
- if (background == -1 && foreground == -1) return null;
- int forePixel = foreground, backPixel = background;
- if (forePixel == -1) forePixel = defaultForeground ();
- if (backPixel == -1) backPixel = defaultBackground ();
- OS.SetTextColor (wParam, forePixel);
- OS.SetBkColor (wParam, backPixel);
- return new LRESULT (findBrush (backPixel));
-}
-
-LRESULT wmCommandChild (int wParam, int lParam) {
- return null;
-}
-
-LRESULT wmDrawChild (int wParam, int lParam) {
- return null;
-}
-
-LRESULT wmMeasureChild (int wParam, int lParam) {
- return null;
-}
-
-LRESULT wmNotifyChild (int wParam, int lParam) {
- return null;
-}
-
-LRESULT wmScrollChild (int wParam, int lParam) {
- return null;
-}
-
-}
-
+ int value = OS.VkKeyScan (ACCENTS [i]);
+ if ((value & 0xFF) == wParam && (value & 0x600) == 0x600) {
+ return null;
+ }
+ }
+ }
+
+ /*
+ * If we are going to get a WM_CHAR, ensure that last key has
+ * the correct character value for the key down and key up
+ * events. It is not sufficient to ignore the WM_KEYDOWN
+ * (when we know we are going to get a WM_CHAR) and compute
+ * the key in WM_CHAR because there is not enough information
+ * by the time we get the WM_CHAR. For example, when the user
+ * types Ctrl+Shift+6 on a US keyboard, we get a WM_CHAR with
+ * wParam=30. When the user types Ctrl+Shift+6 on a German
+ * keyboard, we also get a WM_CHAR with wParam=30. On the US
+ * keyboard Shift+6 is ^, on the German keyboard Shift+6 is &.
+ * There is no way to map wParam=30 in WM_CHAR to the correct
+ * value. Also, on international keyboards, the control key
+ * may be down when the user has not entered a control character.
+ */
+ display.lastKey = wParam;
+ display.lastVirtual = (mapKey == 0);
+ if (display.lastVirtual) {
+ /*
+ * Feature in Windows. The virtual key VK_DELETE is not
+ * treated as both a virtual key and an ASCII key by Windows.
+ * Therefore, we will not receive a WM_CHAR for this key.
+ * The fix is to treat VK_DELETE as a special case and map
+ * the ASCII value explictly (Delete is 0x7F).
+ */
+ if (display.lastKey == OS.VK_DELETE) display.lastAscii = 0x7F;
+ /*
+ * It is possible to get a WM_CHAR for a virtual key when
+ * Num Lock is on. If the user types Home while Num Lock
+ * is down, a WM_CHAR is issued with WPARM=55 (for the
+ * character 7). If we are going to get a WM_CHAR we need
+ * to ensure that the last key has the correct value. Note
+ * that Ctrl+Home does not issue a WM_CHAR when Num Lock is
+ * down.
+ */
+ if (OS.VK_NUMPAD0 <= display.lastKey && display.lastKey <= OS.VK_DIVIDE) {
+ if (display.asciiKey (display.lastKey) != 0) return null;
+ display.lastAscii = display.numpadKey (display.lastKey);
+ }
+ } else {
+ /*
+ * Get the shifted state or convert to lower case if necessary.
+ * If the user types Ctrl+A, LastKey should be 'a', not 'A'. If
+ * the user types Ctrl+Shift+A, LastKey should be 'A'. If the user
+ * types Ctrl+Shift+6, the value of LastKey will depend on the
+ * international keyboard.
+ */
+ if (OS.GetKeyState (OS.VK_SHIFT) < 0) {
+ display.lastKey = display.shiftedKey (display.lastKey);
+ if (display.lastKey == 0) display.lastKey = wParam;
+ } else {
+ display.lastKey = OS.CharLower ((short) mapKey);
+ }
+ /*
+ * Some key combinations map to Windows ASCII keys depending
+ * on the keyboard. For example, Ctrl+Alt+Q maps to @ on a
+ * German keyboard. If the current key combination is special,
+ * the correct character is placed in wParam for processing in
+ * WM_CHAR. If this is the case, issue the key down event from
+ * inside WM_CHAR.
+ */
+ int asciiKey = display.asciiKey (wParam);
+ if (asciiKey != 0) {
+ /*
+ * When the user types Ctrl+Space, ToAscii () maps this to
+ * Space. Normally, ToAscii () maps a key to a different
+ * key if both a WM_KEYDOWN and a WM_CHAR will be issued.
+ * To avoid the extra SWT.KeyDown, look for VK_SPACE and
+ * issue the event from WM_CHAR.
+ */
+ if (asciiKey == OS.VK_SPACE) {
+ display.lastVirtual = true;
+ return null;
+ }
+ if (asciiKey != wParam) return null;
+ }
+
+ /*
+ * If the control key is not down at this point, then
+ * the key that was pressed was an accent key. In that
+ * case, do not issue the key down event.
+ */
+ if (OS.GetKeyState (OS.VK_CONTROL) >= 0) {
+ display.lastKey = 0;
+ return null;
+ }
+
+ /*
+ * Virtual keys such as VK_RETURN are both virtual and ASCII keys.
+ * Normally, these are marked virtual in WM_CHAR. Since we will not
+ * be getting a WM_CHAR for the key at this point, we need to test
+ * LastKey to see if it is virtual. This happens when the user types
+ * Ctrl+Tab.
+ */
+ display.lastVirtual = display.isVirtualKey (wParam);
+ display.lastAscii = display.controlKey (display.lastKey);
+ display.lastNull = display.lastAscii == 0 && display.lastKey == '@';
+ }
+ if (!sendKeyEvent (SWT.KeyDown, OS.WM_KEYDOWN, wParam, lParam)) {
+ return LRESULT.ZERO;
+ }
+ return null;
+}
+
+LRESULT WM_KEYUP (int wParam, int lParam) {
+ Display display = getDisplay ();
+
+ /* Check for hardware keys */
+ if (OS.IsWinCE) {
+ if (OS.VK_APP1 <= wParam && wParam <= OS.VK_APP6) {
+ display.lastKey = display.lastAscii = 0;
+ display.lastVirtual = display.lastNull = false;
+ Event event = new Event ();
+ event.detail = wParam - OS.VK_APP1 + 1;
+ /* Check the bit 30 to get the key state */
+ int type = (lParam & 0x40000000) != 0 ? SWT.HardKeyUp : SWT.HardKeyDown;
+ if (setInputState (event, type)) sendEvent (type, event);
+ return null;
+ }
+ }
+
+ /*
+ * If the key up is not hooked, reset last key
+ * and last ascii in case the key down is hooked.
+ */
+ if (!hooks (SWT.KeyUp) && !display.filters (SWT.KeyUp)) {
+ display.lastKey = display.lastAscii = 0;
+ display.lastVirtual = display.lastNull = false;
+ return null;
+ }
+
+ /* Map the virtual key. */
+ /*
+ * Bug on WinCE. MapVirtualKey() returns incorrect values.
+ * The fix is to rely on a key mappings table to determine
+ * whether the key event must be sent now or if a WM_CHAR
+ * event will follow.
+ */
+ int mapKey = OS.IsWinCE ? 0 : OS.MapVirtualKey (wParam, 2);
+
+ /*
+ * Bug in Windows 95 and NT. When the user types an accent key such
+ * as ^ to get an accented character on a German keyboard, the accent
+ * key should be ignored and the next key that the user types is the
+ * accented key. On Windows 95 and NT, a call to ToAscii (), clears the
+ * accented state such that the next WM_CHAR loses the accent. The fix
+ * is to detect the accent key stroke (called a dead key) by testing the
+ * high bit of the value returned by MapVirtualKey (). A further problem
+ * is that the high bit on Windows NT is bit 32 while the high bit on
+ * Windows 95 is bit 16. They should both be bit 32.
+ *
+ * NOTE: This code is used to avoid a call to ToAscii ().
+ *
+ */
+ if (OS.IsWinNT) {
+ if ((mapKey & 0x80000000) != 0) return null;
+ } else {
+ if ((mapKey & 0x8000) != 0) return null;
+ }
+
+ /*
+ * Bug in Windows. When the accent key is generated on an international
+ * keyboard using Ctrl+Alt or the special key, MapVirtualKey () does not
+ * have the high bit set indicating that this is an accent key stroke.
+ * The fix is to iterate through all known accent, mapping them back to
+ * their corresponding virtual key and key state. If the virtual key
+ * and key state match the current key, then this is an accent that has
+ * been generated using an international keyboard.
+ *
+ * NOTE: This code is used to avoid a call to ToAscii ().
+ */
+ if (!OS.IsWinCE) {
+ for (int i=0; i<ACCENTS.length; i++) {
+ int value = OS.VkKeyScan (ACCENTS [i]);
+ if ((value & 0xFF) == wParam && (value & 0x600) == 0x600) {
+ display.lastKey = display.lastAscii = 0;
+ display.lastVirtual = display.lastNull = false;
+ return null;
+ }
+ }
+ }
+
+ display.lastVirtual = (mapKey == 0);
+ if (display.lastVirtual) {
+ display.lastKey = wParam;
+ } else {
+ if (display.lastKey == 0) {
+ display.lastAscii = 0;
+ display.lastNull = false;
+ return null;
+ }
+ display.lastVirtual = display.isVirtualKey (display.lastKey);
+ }
+
+ LRESULT result = null;
+ if (!sendKeyEvent (SWT.KeyUp, OS.WM_KEYUP, wParam, lParam)) {
+ result = LRESULT.ZERO;
+ }
+ display.lastKey = display.lastAscii = 0;
+ display.lastVirtual = display.lastNull = false;
+ return result;
+}
+
+LRESULT WM_KILLFOCUS (int wParam, int lParam) {
+ int code = callWindowProc (OS.WM_KILLFOCUS, wParam, lParam);
+ Display display = getDisplay ();
+ Shell shell = getShell ();
+
+ /*
+ * It is possible (but unlikely), that application
+ * code could have disposed the widget in the focus
+ * out event. If this happens keep going to send
+ * the deactivate events.
+ */
+ sendEvent (SWT.FocusOut);
+ // widget could be disposed at this point
+
+ /*
+ * It is possible that the shell may be
+ * disposed at this point. If this happens
+ * don't send the activate and deactivate
+ * events.
+ */
+ if (!shell.isDisposed ()) {
+ Control control = display.findControl (wParam);
+ if (control == null || shell != control.getShell ()) {
+ shell.setActiveControl (null);
+ }
+ }
+
+ /*
+ * It is possible (but unlikely), that application
+ * code could have disposed the widget in the focus
+ * or deactivate events. If this happens, end the
+ * processing of the Windows message by returning
+ * zero as the result of the window proc.
+ */
+ if (isDisposed ()) return LRESULT.ZERO;
+ if (code == 0) return LRESULT.ZERO;
+ return new LRESULT (code);
+}
+
+LRESULT WM_LBUTTONDBLCLK (int wParam, int lParam) {
+ /*
+ * Feature in Windows. Windows sends the following
+ * messages when the user double clicks the mouse:
+ *
+ * WM_LBUTTONDOWN - mouse down
+ * WM_LBUTTONUP - mouse up
+ * WM_LBUTTONDBLCLK - double click
+ * WM_LBUTTONUP - mouse up
+ *
+ * Applications that expect matching mouse down/up
+ * pairs will not see the second mouse down. The
+ * fix is to send a mouse down event.
+ */
+ sendMouseEvent (SWT.MouseDown, 1, OS.WM_LBUTTONDOWN, wParam, lParam);
+ sendMouseEvent (SWT.MouseDoubleClick, 1, OS.WM_LBUTTONDBLCLK, wParam, lParam);
+ int result = callWindowProc (OS.WM_LBUTTONDBLCLK, wParam, lParam);
+ if (OS.GetCapture () != handle) OS.SetCapture (handle);
+ return new LRESULT (result);
+}
+
+LRESULT WM_LBUTTONDOWN (int wParam, int lParam) {
+ boolean dragging = false, mouseDown = true;
+ boolean dragDetect = hooks (SWT.DragDetect);
+ if (dragDetect) {
+ if (!OS.IsWinCE) {
+ /*
+ * Feature in Windows. It's possible that the drag
+ * operation will not be started while the mouse is
+ * down, meaning that the mouse should be captured.
+ * This can happen when the user types the ESC key
+ * to cancel the drag. The fix is to query the state
+ * of the mouse and capture the mouse accordingly.
+ */
+ POINT pt = new POINT ();
+ pt.x = (short) (lParam & 0xFFFF);
+ pt.y = (short) (lParam >> 16);
+ OS.ClientToScreen(handle, pt);
+ dragging = OS.DragDetect (handle, pt);
+ mouseDown = OS.GetKeyState (OS.VK_LBUTTON) < 0;
+ }
+ }
+ sendMouseEvent (SWT.MouseDown, 1, OS.WM_LBUTTONDOWN, wParam, lParam);
+ int result = callWindowProc (OS.WM_LBUTTONDOWN, wParam, lParam);
+ if (OS.IsPPC) {
+ if (menu != null && !menu.isDisposed ()) {
+ int x = (short) (lParam & 0xFFFF);
+ int y = (short) (lParam >> 16);
+ SHRGINFO shrg = new SHRGINFO ();
+ shrg.cbSize = SHRGINFO.sizeof;
+ shrg.hwndClient = handle;
+ shrg.ptDown_x = x;
+ shrg.ptDown_y = y;
+ shrg.dwFlags = OS.SHRG_RETURNCMD;
+ int type = OS.SHRecognizeGesture (shrg);
+ if (type == OS.GN_CONTEXTMENU) {
+ menu.setVisible (true);
+ }
+ }
+ }
+ if (mouseDown) {
+ if (OS.GetCapture () != handle) OS.SetCapture (handle);
+ }
+ if (dragging) {
+ postEvent (SWT.DragDetect);
+ } else {
+ if (dragDetect) {
+ /*
+ * Feature in Windows. DragDetect() captures the mouse
+ * and tracks its movement until the user releases the
+ * left mouse button, presses the ESC key, or moves the
+ * mouse outside the drag rectangle. If the user moves
+ * the mouse outside of the drag rectangle, DragDetect()
+ * returns true and a drag and drop operation can be
+ * started. When the left mouse button is released or
+ * the ESC key is pressed, these events are consumed by
+ * DragDetect() so that application code that matches
+ * mouse down/up pairs or looks for the ESC key will not
+ * function properly. The fix is to send these events
+ * when the drag has not started.
+ *
+ * NOTE: For now, don't send a fake WM_KEYDOWN/WM_KEYUP
+ * events for the ESC key. This would require computing
+ * wParam (the key) and lParam (the repeat count, scan code,
+ * extended-key flag, context code, previous key-state flag,
+ * and transition-state flag) which is non-trivial.
+ */
+ if (OS.GetKeyState (OS.VK_ESCAPE) >= 0) {
+ OS.SendMessage (handle, OS.WM_LBUTTONUP, wParam, lParam);
+ }
+ }
+ }
+ return new LRESULT (result);
+}
+
+LRESULT WM_LBUTTONUP (int wParam, int lParam) {
+ sendMouseEvent (SWT.MouseUp, 1, OS.WM_LBUTTONUP, wParam, lParam);
+ int result = callWindowProc (OS.WM_LBUTTONUP, wParam, lParam);
+ if ((wParam & (OS.MK_LBUTTON | OS.MK_MBUTTON | OS.MK_RBUTTON)) == 0) {
+ if (OS.GetCapture () == handle) OS.ReleaseCapture ();
+ }
+ return new LRESULT (result);
+}
+
+LRESULT WM_MBUTTONDBLCLK (int wParam, int lParam) {
+ /*
+ * Feature in Windows. Windows sends the following
+ * messages when the user double clicks the mouse:
+ *
+ * WM_MBUTTONDOWN - mouse down
+ * WM_MBUTTONUP - mouse up
+ * WM_MLBUTTONDBLCLK - double click
+ * WM_MBUTTONUP - mouse up
+ *
+ * Applications that expect matching mouse down/up
+ * pairs will not see the second mouse down. The
+ * fix is to send a mouse down event.
+ */
+ sendMouseEvent (SWT.MouseDown, 2, OS.WM_MBUTTONDOWN, wParam, lParam);
+ sendMouseEvent (SWT.MouseDoubleClick, 2, OS.WM_MBUTTONDBLCLK, wParam, lParam);
+ int result = callWindowProc (OS.WM_MBUTTONDBLCLK, wParam, lParam);
+ if (OS.GetCapture () != handle) OS.SetCapture (handle);
+ return new LRESULT (result);
+}
+
+LRESULT WM_MBUTTONDOWN (int wParam, int lParam) {
+ sendMouseEvent (SWT.MouseDown, 2, OS.WM_MBUTTONDOWN, wParam, lParam);
+ int result = callWindowProc (OS.WM_MBUTTONDOWN, wParam, lParam);
+ if (OS.GetCapture () != handle) OS.SetCapture(handle);
+ return new LRESULT (result);
+}
+
+LRESULT WM_MBUTTONUP (int wParam, int lParam) {
+ sendMouseEvent (SWT.MouseUp, 2, OS.WM_MBUTTONUP, wParam, lParam);
+ int result = callWindowProc (OS.WM_MBUTTONUP, wParam, lParam);
+ if ((wParam & (OS.MK_LBUTTON | OS.MK_MBUTTON | OS.MK_RBUTTON)) == 0) {
+ if (OS.GetCapture () == handle) OS.ReleaseCapture ();
+ }
+ return new LRESULT (result);
+}
+
+LRESULT WM_MEASUREITEM (int wParam, int lParam) {
+ MEASUREITEMSTRUCT struct = new MEASUREITEMSTRUCT ();
+ OS.MoveMemory (struct, lParam, MEASUREITEMSTRUCT.sizeof);
+ if (struct.CtlType == OS.ODT_MENU) {
+ Decorations shell = menuShell ();
+ MenuItem item = shell.findMenuItem (struct.itemID);
+ if (item == null) return null;
+ return item.wmMeasureChild (wParam, lParam);
+ }
+ int hwnd = OS.GetDlgItem (handle, struct.CtlID);
+ Control control = WidgetTable.get (hwnd);
+ if (control == null) return null;
+ return control.wmMeasureChild (wParam, lParam);
+}
+
+LRESULT WM_MENUCHAR (int wParam, int lParam) {
+ /*
+ * Feature in Windows. When the user types Alt+<key>
+ * and <key> does not match a mnemonic in the System
+ * menu or the menu bar, Windows beeps. This beep is
+ * unexpected and unwanted by applications that look
+ * for Alt+<key>. The fix is to detect the case and
+ * stop Windows from beeping by closing the menu.
+ */
+ int type = wParam >> 16;
+ if (type == 0 || type == OS.MF_SYSMENU) {
+ Display display = getDisplay ();
+ display.mnemonicKeyHit = false;
+ return new LRESULT (OS.MNC_CLOSE << 16);
+ }
+ return null;
+}
+
+LRESULT WM_MENUSELECT (int wParam, int lParam) {
+ int code = wParam >> 16;
+ Shell shell = getShell ();
+ if (code == -1 && lParam == 0) {
+ Display display = getDisplay ();
+ display.mnemonicKeyHit = true;
+ Menu menu = shell.activeMenu;
+ while (menu != null) {
+ /*
+ * It is possible (but unlikely), that application
+ * code could have disposed the widget in the hide
+ * event. If this happens, stop searching up the
+ * parent list because there is no longer a link
+ * to follow.
+ */
+ menu.sendEvent (SWT.Hide);
+ if (menu.isDisposed ()) break;
+ menu = menu.getParentMenu ();
+ }
+ /*
+ * The shell may be disposed because of sending the hide
+ * event to the last active menu menu but setting a field
+ * to null in a destroyed widget is not harmful.
+ */
+ shell.activeMenu = null;
+ return null;
+ }
+ if ((code & OS.MF_SYSMENU) != 0) return null;
+ if ((code & OS.MF_HILITE) != 0) {
+ MenuItem item = null;
+ Decorations menuShell = menuShell ();
+ if ((code & OS.MF_POPUP) != 0) {
+ int index = wParam & 0xFFFF;
+ MENUITEMINFO info = new MENUITEMINFO ();
+ info.cbSize = MENUITEMINFO.sizeof;
+ info.fMask = OS.MIIM_SUBMENU;
+ if (OS.GetMenuItemInfo (lParam, index, true, info)) {
+ Menu newMenu = menuShell.findMenu (info.hSubMenu);
+ if (newMenu != null) item = newMenu.cascade;
+ }
+ } else {
+ Menu newMenu = menuShell.findMenu (lParam);
+ if (newMenu != null) {
+ int id = wParam & 0xFFFF;
+ item = menuShell.findMenuItem (id);
+ }
+ Menu oldMenu = shell.activeMenu;
+ if (oldMenu != null) {
+ Menu ancestor = oldMenu;
+ while (ancestor != null && ancestor != newMenu) {
+ ancestor = ancestor.getParentMenu ();
+ }
+ if (ancestor == newMenu) {
+ ancestor = oldMenu;
+ while (ancestor != newMenu) {
+ /*
+ * It is possible (but unlikely), that application
+ * code could have disposed the widget in the hide
+ * event or the item about to be armed. If this
+ * happens, stop searching up the ancestor list
+ * because there is no longer a link to follow.
+ */
+ ancestor.sendEvent (SWT.Hide);
+ if (ancestor.isDisposed ()) break;
+ ancestor = ancestor.getParentMenu ();
+ }
+ /*
+ * The shell and/or the item could be disposed when
+ * processing hide events from above. If this happens,
+ * ensure that the shell is not accessed and that no
+ * arm event is sent to the item.
+ */
+ if (!shell.isDisposed ()) {
+ if (newMenu != null && newMenu.isDisposed ()) {
+ newMenu = null;
+ }
+ shell.activeMenu = newMenu;
+ }
+ if (item != null && item.isDisposed ()) item = null;
+ }
+ }
+ }
+ if (item != null) item.sendEvent (SWT.Arm);
+ }
+ return null;
+}
+
+LRESULT WM_MOUSEACTIVATE (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT WM_MOUSEHOVER (int wParam, int lParam) {
+ sendMouseEvent (SWT.MouseHover, 0, OS.WM_MOUSEHOVER, wParam, lParam);
+ return null;
+}
+
+LRESULT WM_MOUSELEAVE (int wParam, int lParam) {
+ int pos = OS.GetMessagePos ();
+ POINT pt = new POINT ();
+ pt.x = (short) (pos & 0xFFFF);
+ pt.y = (short) (pos >> 16);
+ OS.ScreenToClient (handle, pt);
+ lParam = pt.x | (pt.y << 16);
+ sendMouseEvent (SWT.MouseExit, 0, OS.WM_MOUSELEAVE, wParam, lParam);
+ return null;
+}
+
+LRESULT WM_MOUSEMOVE (int wParam, int lParam) {
+ if (!OS.IsWinCE) {
+ Display display = getDisplay ();
+ boolean mouseEnter = hooks (SWT.MouseEnter) || display.filters (SWT.MouseEnter);
+ boolean mouseExit = hooks (SWT.MouseExit) || display.filters (SWT.MouseExit);
+ boolean mouseHover = hooks (SWT.MouseHover) || display.filters (SWT.MouseHover);
+ if (mouseEnter || mouseExit || mouseHover) {
+ TRACKMOUSEEVENT lpEventTrack = new TRACKMOUSEEVENT ();
+ lpEventTrack.cbSize = TRACKMOUSEEVENT.sizeof;
+ lpEventTrack.dwFlags = OS.TME_QUERY;
+ lpEventTrack.hwndTrack = handle;
+ OS.TrackMouseEvent (lpEventTrack);
+ if (lpEventTrack.dwFlags == 0) {
+ lpEventTrack.dwFlags = OS.TME_LEAVE | OS.TME_HOVER;
+ lpEventTrack.hwndTrack = handle;
+ OS.TrackMouseEvent (lpEventTrack);
+ if (mouseEnter) {
+ sendMouseEvent (SWT.MouseEnter, 0, OS.WM_MOUSEMOVE, wParam, lParam);
+ }
+ } else {
+ lpEventTrack.dwFlags = OS.TME_HOVER;
+ OS.TrackMouseEvent (lpEventTrack);
+ }
+ }
+ }
+ Display display = getDisplay ();
+ int pos = OS.GetMessagePos ();
+ if (pos != display.lastMouse) {
+ display.lastMouse = pos;
+ sendMouseEvent (SWT.MouseMove, 0, OS.WM_MOUSEMOVE, wParam, lParam);
+ }
+ return null;
+}
+
+LRESULT WM_MOUSEWHEEL (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT WM_MOVE (int wParam, int lParam) {
+ sendEvent (SWT.Move);
+ // widget could be disposed at this point
+ return null;
+}
+
+LRESULT WM_NCACTIVATE (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT WM_NCCALCSIZE (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT WM_NCHITTEST (int wParam, int lParam) {
+ if (!OS.IsWindowEnabled (handle)) return null;
+ if (!isActive ()) return new LRESULT (OS.HTTRANSPARENT);
+ return null;
+}
+
+LRESULT WM_NOTIFY (int wParam, int lParam) {
+ NMHDR hdr = new NMHDR ();
+ OS.MoveMemory (hdr, lParam, NMHDR.sizeof);
+ int hwnd = hdr.hwndFrom;
+ if (hwnd == 0) return null;
+ Control control = WidgetTable.get (hwnd);
+ if (control == null) return null;
+ return control.wmNotifyChild (wParam, lParam);
+}
+
+LRESULT WM_PAINT (int wParam, int lParam) {
+
+ /* Exit early - don't draw the background */
+ if (!hooks (SWT.Paint) && !filters (SWT.Paint)) {
+ return null;
+ }
+
+ /* Get the damage */
+ int result = 0;
+ if (OS.IsWinCE) {
+ RECT rect = new RECT ();
+ OS.GetUpdateRect (handle, rect, false);
+ result = callWindowProc (OS.WM_PAINT, wParam, lParam);
+ OS.InvalidateRect (handle, rect, false);
+ } else {
+ int rgn = OS.CreateRectRgn (0, 0, 0, 0);
+ OS.GetUpdateRgn (handle, rgn, false);
+ result = callWindowProc (OS.WM_PAINT, wParam, lParam);
+ OS.InvalidateRgn (handle, rgn, false);
+ OS.DeleteObject (rgn);
+ }
+
+ /* Create the paint GC */
+ PAINTSTRUCT ps = new PAINTSTRUCT ();
+ GCData data = new GCData ();
+ data.ps = ps;
+ GC gc = GC.win32_new (this, data);
+
+ /* Send the paint event */
+ Event event = new Event ();
+ event.gc = gc;
+ event.x = ps.left;
+ event.y = ps.top;
+ event.width = ps.right - ps.left;
+ event.height = ps.bottom - ps.top;
+ /*
+ * It is possible (but unlikely), that application
+ * code could have disposed the widget in the paint
+ * event. If this happens, attempt to give back the
+ * paint GC anyways because this is a scarce Windows
+ * resource.
+ */
+ sendEvent (SWT.Paint, event);
+ // widget could be disposed at this point
+
+ /* Dispose the paint GC */
+ event.gc = null;
+ gc.dispose ();
+
+ if (result == 0) return LRESULT.ZERO;
+ return new LRESULT (result);
+}
+
+LRESULT WM_PALETTECHANGED (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT WM_PASTE (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT WM_PRINTCLIENT (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT WM_QUERYENDSESSION (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT WM_QUERYNEWPALETTE (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT WM_QUERYOPEN (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT WM_RBUTTONDBLCLK (int wParam, int lParam) {
+ /*
+ * Feature in Windows. Windows sends the following
+ * messages when the user double clicks the mouse:
+ *
+ * WM_RBUTTONDOWN - mouse down
+ * WM_RBUTTONUP - mouse up
+ * WM_RBUTTONDBLCLK - double click
+ * WM_LBUTTONUP - mouse up
+ *
+ * Applications that expect matching mouse down/up
+ * pairs will not see the second mouse down. The
+ * fix is to send a mouse down event.
+ */
+ sendMouseEvent (SWT.MouseDown, 3, OS.WM_RBUTTONDOWN, wParam, lParam);
+ sendMouseEvent (SWT.MouseDoubleClick, 3, OS.WM_RBUTTONDBLCLK, wParam, lParam);
+ int result = callWindowProc (OS.WM_RBUTTONDBLCLK, wParam, lParam);
+ if (OS.GetCapture () != handle) OS.SetCapture (handle);
+ return new LRESULT (result);
+}
+
+LRESULT WM_RBUTTONDOWN (int wParam, int lParam) {
+ sendMouseEvent (SWT.MouseDown, 3, OS.WM_RBUTTONDOWN, wParam, lParam);
+ int result = callWindowProc (OS.WM_RBUTTONDOWN, wParam, lParam);
+ if (OS.GetCapture () != handle) OS.SetCapture (handle);
+ return new LRESULT (result);
+}
+
+LRESULT WM_RBUTTONUP (int wParam, int lParam) {
+ sendMouseEvent (SWT.MouseUp, 3, OS.WM_RBUTTONUP, wParam, lParam);
+ int result = callWindowProc (OS.WM_RBUTTONUP, wParam, lParam);
+ if ((wParam & (OS.MK_LBUTTON | OS.MK_MBUTTON | OS.MK_RBUTTON)) == 0) {
+ if (OS.GetCapture () == handle) OS.ReleaseCapture ();
+ }
+ return new LRESULT (result);
+}
+
+LRESULT WM_SETCURSOR (int wParam, int lParam) {
+ int hitTest = lParam & 0xFFFF;
+ if (hitTest == OS.HTCLIENT) {
+ Control control = WidgetTable.get (wParam);
+ if (control == null) return null;
+ int hCursor = control.findCursor ();
+ if (hCursor != 0) {
+ OS.SetCursor (hCursor);
+ return LRESULT.ONE;
+ }
+ }
+ return null;
+}
+
+LRESULT WM_SETFOCUS (int wParam, int lParam) {
+ int code = callWindowProc (OS.WM_SETFOCUS, wParam, lParam);
+ Shell shell = getShell ();
+
+ /*
+ * It is possible (but unlikely), that application
+ * code could have disposed the widget in the focus
+ * in event. If this happens keep going to send
+ * the activate events.
+ */
+ sendEvent (SWT.FocusIn);
+ // widget could be disposed at this point
+
+ /*
+ * It is possible that the shell may be
+ * disposed at this point. If this happens
+ * don't send the activate and deactivate
+ * events.
+ */
+ if (!shell.isDisposed ()) {
+ shell.setActiveControl (this);
+ }
+
+ /*
+ * It is possible (but unlikely), that application
+ * code could have disposed the widget in the focus
+ * or activate events. If this happens, end the
+ * processing of the Windows message by returning
+ * zero as the result of the window proc.
+ */
+ if (isDisposed ()) return LRESULT.ZERO;
+ if (code == 0) return LRESULT.ZERO;
+ return new LRESULT (code);
+}
+
+LRESULT WM_SETTINGCHANGE (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT WM_SETFONT (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT WM_SETREDRAW (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT WM_SHOWWINDOW (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT WM_SIZE (int wParam, int lParam) {
+ sendEvent (SWT.Resize);
+ // widget could be disposed at this point
+ return null;
+}
+
+LRESULT WM_SYSCHAR (int wParam, int lParam) {
+ Display display = getDisplay ();
+
+ /* Set last key and last ascii because a new key has been typed */
+ display.lastAscii = display.lastKey = wParam;
+ display.lastVirtual = display.isVirtualKey (wParam);
+ display.lastNull = false;
+
+ /* Do not issue a key down if a menu bar mnemonic was invoked */
+ if (!hooks (SWT.KeyDown) && !display.filters (SWT.KeyDown)) {
+ return null;
+ }
+ display.mnemonicKeyHit = true;
+ int result = callWindowProc (OS.WM_SYSCHAR, wParam, lParam);
+ if (!display.mnemonicKeyHit) {
+ sendKeyEvent (SWT.KeyDown, OS.WM_SYSCHAR, wParam, lParam);
+ }
+ display.mnemonicKeyHit = false;
+ return new LRESULT (result);
+}
+
+LRESULT WM_SYSCOLORCHANGE (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT WM_SYSCOMMAND (int wParam, int lParam) {
+ /*
+ * Check to see if the command is a system command or
+ * a user menu item that was added to the System menu.
+ * When a user item is added to the System menu,
+ * WM_SYSCOMMAND must always return zero.
+ */
+ if ((wParam & 0xF000) == 0) {
+ Decorations shell = menuShell ();
+ if (shell.isEnabled ()) {
+ MenuItem item = shell.findMenuItem (wParam & 0xFFFF);
+ if (item != null) item.wmCommandChild (wParam, lParam);
+ }
+ return LRESULT.ZERO;
+ }
+
+ /* Process the System Command */
+ int cmd = wParam & 0xFFF0;
+ switch (cmd) {
+ case OS.SC_CLOSE:
+ int hwndShell = menuShell ().handle;
+ int bits = OS.GetWindowLong (hwndShell, OS.GWL_STYLE);
+ if ((bits & OS.WS_SYSMENU) == 0) return LRESULT.ZERO;
+ break;
+ case OS.SC_KEYMENU:
+ if (hooks (SWT.KeyDown) || hooks (SWT.KeyUp)) {
+ Decorations shell = menuShell ();
+ Menu menu = shell.getMenuBar ();
+ if (menu != null) {
+ char key = mbcsToWcs (lParam);
+ if (key != 0) {
+ key = Character.toUpperCase (key);
+ MenuItem [] items = menu.getItems ();
+ for (int i=0; i<items.length; i++) {
+ MenuItem item = items [i];
+ String text = item.getText ();
+ char mnemonic = findMnemonic (text);
+ if (text.length () > 0 && mnemonic == 0) {
+ char ch = text.charAt (0);
+ if (Character.toUpperCase (ch) == key) {
+ Display display = getDisplay ();
+ display.mnemonicKeyHit = false;
+ return LRESULT.ZERO;
+ }
+ }
+ }
+ }
+ }
+ }
+ // FALL THROUGH
+ case OS.SC_HSCROLL:
+ case OS.SC_VSCROLL:
+ /*
+ * Do not allow keyboard traversal of the menu bar
+ * or scrolling when the shell is not enabled.
+ */
+ Decorations shell = menuShell ();
+ if (!shell.isEnabled () || !shell.isActive ()) {
+ return LRESULT.ZERO;
+ }
+ break;
+ case OS.SC_MINIMIZE:
+ /* Save the focus widget when the shell is minimized */
+ menuShell ().saveFocus ();
+ break;
+ }
+ return null;
+}
+
+LRESULT WM_SYSKEYDOWN (int wParam, int lParam) {
+ /*
+ * Feature in Windows. WM_SYSKEYDOWN is sent when
+ * the user presses ALT-<aKey> or F10 without the ALT key.
+ * In order to issue events for F10 (without the ALT key)
+ * but ignore all other key presses without the ALT key,
+ * make F10 a special case.
+ */
+ if (wParam != OS.VK_F10) {
+ /* Make sure WM_SYSKEYDOWN was sent by ALT-<aKey>. */
+ if ((lParam & 0x20000000) == 0) return null;
+ }
+
+ /* Ignore repeating modifier keys by testing key down state */
+ switch (wParam) {
+ case OS.VK_SHIFT:
+ case OS.VK_MENU:
+ case OS.VK_CONTROL:
+ case OS.VK_CAPITAL:
+ case OS.VK_NUMLOCK:
+ case OS.VK_SCROLL:
+ if ((lParam & 0x40000000) != 0) return null;
+ }
+
+ /* Clear last key and last ascii because a new key has been typed */
+ Display display = getDisplay ();
+ display.lastAscii = display.lastKey = 0;
+ display.lastVirtual = display.lastNull = false;
+
+ /* If are going to get a WM_SYSCHAR, ignore this message. */
+ /*
+ * Bug on WinCE. MapVirtualKey() returns incorrect values.
+ * The fix is to rely on a key mappings table to determine
+ * whether the key event must be sent now or if a WM_SYSCHAR
+ * event will follow.
+ */
+ if (!OS.IsWinCE) {
+ if (OS.MapVirtualKey (wParam, 2) != 0) {
+ /*
+ * Feature in Windows. MapVirtualKey() indicates that
+ * a WM_SYSCHAR message will occur for Alt+Enter but
+ * this message never happens. The fix is to issue the
+ * event from WM_SYSKEYDOWN and map VK_RETURN to '\r'.
+ */
+ if (wParam != OS.VK_RETURN) return null;
+ display.lastAscii = '\r';
+ }
+ }
+ display.lastKey = wParam;
+ display.lastVirtual = true;
+
+ /*
+ * Feature in Windows. The virtual key VK_DELETE is not
+ * treated as both a virtual key and an ASCII key by Windows.
+ * Therefore, we will not receive a WM_CHAR for this key.
+ * The fix is to treat VK_DELETE as a special case and map
+ * the ASCII value explictly (Delete is 0x7F).
+ */
+ if (display.lastKey == OS.VK_DELETE) display.lastAscii = 0x7F;
+
+ /*
+ * It is possible to get a WM_CHAR for a virtual key when
+ * Num Lock is on. If the user types Home while Num Lock
+ * is down, a WM_CHAR is issued with WPARM=55 (for the
+ * character 7). If we are going to get a WM_CHAR we need
+ * to ensure that the last key has the correct value. Note
+ * that Ctrl+Home does not issue a WM_CHAR when Num Lock is
+ * down.
+ */
+ if (OS.VK_NUMPAD0 <= display.lastKey && display.lastKey <= OS.VK_DIVIDE) {
+ if (display.asciiKey (display.lastKey) != 0) return null;
+ }
+
+ if (!sendKeyEvent (SWT.KeyDown, OS.WM_SYSKEYDOWN, wParam, lParam)) {
+ return LRESULT.ZERO;
+ }
+ return null;
+}
+
+LRESULT WM_SYSKEYUP (int wParam, int lParam) {
+ return WM_KEYUP (wParam, lParam);
+}
+
+LRESULT WM_TIMER (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT WM_UNDO (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT WM_VSCROLL (int wParam, int lParam) {
+ if (lParam == 0) return null;
+ Control control = WidgetTable.get (lParam);
+ if (control == null) return null;
+ return control.wmScrollChild (wParam, lParam);
+}
+
+LRESULT WM_WINDOWPOSCHANGING (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT wmColorChild (int wParam, int lParam) {
+ if (background == -1 && foreground == -1) return null;
+ int forePixel = foreground, backPixel = background;
+ if (forePixel == -1) forePixel = defaultForeground ();
+ if (backPixel == -1) backPixel = defaultBackground ();
+ OS.SetTextColor (wParam, forePixel);
+ OS.SetBkColor (wParam, backPixel);
+ return new LRESULT (findBrush (backPixel));
+}
+
+LRESULT wmCommandChild (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT wmDrawChild (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT wmMeasureChild (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT wmNotifyChild (int wParam, int lParam) {
+ return null;
+}
+
+LRESULT wmScrollChild (int wParam, int lParam) {
+ return null;
+}
+
+}
+