diff options
Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/MenuItem.java')
| -rwxr-xr-x | bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/MenuItem.java | 1946 |
1 files changed, 973 insertions, 973 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/MenuItem.java b/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/MenuItem.java index 6833f5561c..5a59689728 100755 --- a/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/MenuItem.java +++ b/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/MenuItem.java @@ -1,976 +1,976 @@ -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.*;
-import org.eclipse.swt.graphics.*;
-import org.eclipse.swt.events.*;
-
-/**
- * Instances of this class represent a selectable user interface object
- * that issues notification when pressed and released.
- * <dl>
- * <dt><b>Styles:</b></dt>
- * <dd>CHECK, CASCADE, PUSH, RADIO, SEPARATOR</dd>
- * <dt><b>Events:</b></dt>
- * <dd>Arm, Help, Selection</dd>
- * </dl>
- * <p>
- * Note: Only one of the styles CHECK, CASCADE, PUSH, RADIO and SEPARATOR
- * may be specified.
- * </p><p>
- * IMPORTANT: This class is <em>not</em> intended to be subclassed.
- * </p>
- */
-
-public class MenuItem extends Item {
- Menu parent, menu;
- int id, accelerator;
-
-/**
- * Constructs a new instance of this class given its parent
- * (which must be a <code>Menu</code>) and a style value
- * describing its behavior and appearance. The item is added
- * to the end of the items maintained by its parent.
- * <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 menu 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#CHECK
- * @see SWT#CASCADE
- * @see SWT#PUSH
- * @see SWT#RADIO
- * @see SWT#SEPARATOR
- * @see Widget#checkSubclass
- * @see Widget#getStyle
- */
-public MenuItem (Menu parent, int style) {
- super (parent, checkStyle (style));
- this.parent = parent;
- parent.createItem (this, parent.getItemCount ());
-}
-
-/**
- * Constructs a new instance of this class given its parent
- * (which must be a <code>Menu</code>), a style value
- * describing its behavior and appearance, and the index
- * at which to place it in the items maintained by its parent.
- * <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 menu control which will be the parent of the new instance (cannot be null)
- * @param style the style of control to construct
- * @param index the index to store the receiver in its parent
- *
- * @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#CHECK
- * @see SWT#CASCADE
- * @see SWT#PUSH
- * @see SWT#RADIO
- * @see SWT#SEPARATOR
- * @see Widget#checkSubclass
- * @see Widget#getStyle
- */
-public MenuItem (Menu parent, int style, int index) {
- super (parent, checkStyle (style));
- this.parent = parent;
- parent.createItem (this, index);
-}
-
-MenuItem (Menu parent, Menu menu, int style, int index) {
- super (parent, checkStyle (style));
- this.parent = parent;
- this.menu = menu;
- if (menu != null) menu.cascade = this;
- Decorations shell = parent.parent;
- shell.add (this);
-}
-
-/**
- * Adds the listener to the collection of listeners who will
- * be notified when the arm events are generated for the control, by sending
- * it one of the messages defined in the <code>ArmListener</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 ArmListener
- * @see #removeArmListener
- */
-public void addArmListener (ArmListener listener) {
- checkWidget ();
- if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
- TypedListener typedListener = new TypedListener (listener);
- addListener (SWT.Arm, typedListener);
-}
-
-/**
- * Adds the listener to the collection of listeners who will
- * be notified when the 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 the control is selected, by sending
- * it one of the messages defined in the <code>SelectionListener</code>
- * interface.
- * <p>
- * When <code>widgetSelected</code> is called, the stateMask field of the event object is valid.
- * <code>widgetDefaultSelected</code> is not called.
- * </p>
- *
- * @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 SelectionListener
- * @see #removeSelectionListener
- * @see SelectionEvent
- */
-public void addSelectionListener (SelectionListener listener) {
- checkWidget ();
- if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
- TypedListener typedListener = new TypedListener(listener);
- addListener (SWT.Selection,typedListener);
- addListener (SWT.DefaultSelection,typedListener);
-}
-
-protected void checkSubclass () {
- if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS);
-}
-
-static int checkStyle (int style) {
- return checkBits (style, SWT.PUSH, SWT.CHECK, SWT.RADIO, SWT.SEPARATOR, SWT.CASCADE, 0);
-}
-
-void fillAccel (ACCEL accel) {
- accel.fVirt = 0;
- accel.cmd = accel.key = 0;
- if (accelerator == 0) return;
- int fVirt = OS.FVIRTKEY;
- int key = accelerator & SWT.KEY_MASK;
- int vKey = Display.untranslateKey (key);
- if (vKey != 0) {
- key = vKey;
- } else {
- switch (key) {
- /*
- * Bug in Windows. For some reason, VkKeyScan
- * fails to map ESC to VK_ESCAPE and DEL to
- * VK_DELETE. The fix is to map these keys
- * as a special case.
- */
- case 27: key = OS.VK_ESCAPE; break;
- case 127: key = OS.VK_DELETE; break;
- default: {
- key = wcsToMbcs ((char) key);
- if (key == 0) return;
- if (OS.IsWinCE) {
- key = OS.CharUpper ((short) key);
- } else {
- vKey = OS.VkKeyScan ((short) key) & 0xFF;
- if (vKey == -1) {
- fVirt = 0;
- } else {
- key = vKey;
- }
- }
- }
- }
- }
- accel.key = (short) key;
- accel.cmd = (short) id;
- accel.fVirt = (byte) fVirt;
- if ((accelerator & SWT.ALT) != 0) accel.fVirt |= OS.FALT;
- if ((accelerator & SWT.SHIFT) != 0) accel.fVirt |= OS.FSHIFT;
- if ((accelerator & SWT.CONTROL) != 0) accel.fVirt |= OS.FCONTROL;
-}
-
-/**
- * Return the widget accelerator. An accelerator is the bit-wise
- * OR of zero or more modifier masks and a key. Examples:
- * <code>SWT.CONTROL | SWT.SHIFT | 'T', SWT.ALT | SWT.F2</code>.
- *
- * @return the accelerator
- *
- * </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 int getAccelerator () {
- checkWidget ();
- return accelerator;
-}
-
-public Display getDisplay () {
- Menu 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 ();
- if ((OS.IsPPC || OS.IsSP) && parent.hwndCB != 0) {
- int hwndCB = parent.hwndCB;
- TBBUTTONINFO info = new TBBUTTONINFO ();
- info.cbSize = TBBUTTONINFO.sizeof;
- info.dwMask = OS.TBIF_STATE;
- OS.SendMessage (hwndCB, OS.TB_GETBUTTONINFO, id, info);
- return (info.fsState & OS.TBSTATE_ENABLED) != 0;
- }
- int hMenu = parent.handle;
- MENUITEMINFO info = new MENUITEMINFO ();
- info.cbSize = MENUITEMINFO.sizeof;
- info.fMask = OS.MIIM_STATE;
- boolean success;
- if (OS.IsWinCE) {
- int index = parent.indexOf (this);
- if (index == -1) error (SWT.ERROR_CANNOT_GET_ENABLED);
- success = OS.GetMenuItemInfo (hMenu, index, true, info);
- } else {
- success = OS.GetMenuItemInfo (hMenu, id, false, info);
- }
- if (!success) error (SWT.ERROR_CANNOT_GET_ENABLED);
- return (info.fState & (OS.MFS_DISABLED | OS.MFS_GRAYED)) == 0;
-}
-
-/**
- * Returns the receiver's cascade menu if it has one or null
- * if it does not. Only <code>CASCADE</code> menu items can have
- * a pull down menu. The sequence of key strokes, button presses
- * and/or button releases that are used to request a pull down
- * 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;
-}
-
-String getNameText () {
- if ((style & SWT.SEPARATOR) != 0) return "|";
- return super.getNameText ();
-}
-
-/**
- * Returns the receiver's parent, which must be a <code>Menu</code>.
- *
- * @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 Menu getParent () {
- checkWidget ();
- return parent;
-}
-
-/**
- * Returns <code>true</code> if the receiver is selected,
- * and false otherwise.
- * <p>
- * When the receiver is of type <code>CHECK</code> or <code>RADIO</code>,
- * it is selected when it is checked.
- *
- * @return the selection 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 getSelection () {
- checkWidget ();
- if ((style & (SWT.CHECK | SWT.RADIO)) == 0) return false;
- if ((OS.IsPPC || OS.IsSP) && parent.hwndCB != 0) return false;
- int hMenu = parent.handle;
- MENUITEMINFO info = new MENUITEMINFO ();
- info.cbSize = MENUITEMINFO.sizeof;
- info.fMask = OS.MIIM_STATE;
- boolean success = OS.GetMenuItemInfo (hMenu, id, false, info);
- if (!success) error (SWT.ERROR_CANNOT_GET_SELECTION);
- return (info.fState & OS.MFS_CHECKED) !=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 () {
- return getEnabled () && parent.isEnabled ();
-}
-
-void releaseChild () {
- super.releaseChild ();
- if (menu != null) menu.dispose ();
- menu = null;
- parent.destroyItem (this);
-}
-
-void releaseMenu () {
- if (!OS.IsSP) setMenu (null);
- menu = null;
-}
-
-void releaseWidget () {
- if (menu != null) menu.releaseResources ();
- menu = null;
- super.releaseWidget ();
- if (accelerator != 0) {
- parent.destroyAccelerators ();
- }
- accelerator = 0;
- Decorations shell = parent.parent;
- shell.remove (this);
- parent = null;
-}
-
-/**
- * Removes the listener from the collection of listeners who will
- * be notified when the arm 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 ArmListener
- * @see #addArmListener
- */
-public void removeArmListener (ArmListener listener) {
- checkWidget ();
- if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
- if (eventTable == null) return;
- eventTable.unhook (SWT.Arm, 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 the control is selected.
- *
- * @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 SelectionListener
- * @see #addSelectionListener
- */
-public void removeSelectionListener (SelectionListener listener) {
- checkWidget ();
- if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
- if (eventTable == null) return;
- eventTable.unhook (SWT.Selection, listener);
- eventTable.unhook (SWT.DefaultSelection,listener);
-}
-
-void selectRadio () {
- int index = 0;
- MenuItem [] items = parent.getItems ();
- while (index < items.length && items [index] != this) index++;
- int i = index - 1;
- while (i >= 0 && items [i].setRadioSelection (false)) --i;
- int j = index + 1;
- while (j < items.length && items [j].setRadioSelection (false)) j++;
- setSelection (true);
-}
-
-/**
- * Sets the widget accelerator. An accelerator is the bit-wise
- * OR of zero or more modifier masks and a key. Examples:
- * <code>SWT.MOD1 | SWT.MOD2 | 'T', SWT.MOD3 | SWT.F2</code>.
- * <code>SWT.CONTROL | SWT.SHIFT | 'T', SWT.ALT | SWT.F2</code>.
- *
- * @param accelerator an integer that is the bit-wise OR of masks and a key
- *
- * </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 setAccelerator (int accelerator) {
- checkWidget ();
- if (this.accelerator == accelerator) return;
- this.accelerator = accelerator;
- parent.destroyAccelerators ();
-}
-
-/**
- * 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 ();
- if ((OS.IsPPC || OS.IsSP) && parent.hwndCB != 0) {
- int hwndCB = parent.hwndCB;
- TBBUTTONINFO info = new TBBUTTONINFO ();
- info.cbSize = TBBUTTONINFO.sizeof;
- info.dwMask = OS.TBIF_STATE;
- OS.SendMessage (hwndCB, OS.TB_GETBUTTONINFO, id, info);
- info.fsState &= ~OS.TBSTATE_ENABLED;
- if (enabled) info.fsState |= OS.TBSTATE_ENABLED;
- OS.SendMessage (hwndCB, OS.TB_SETBUTTONINFO, id, info);
- } else {
- int hMenu = parent.handle;
- if (OS.IsWinCE) {
- int index = parent.indexOf (this);
- if (index == -1) return;
- int uEnable = OS.MF_BYPOSITION | (enabled ? OS.MF_ENABLED : OS.MF_GRAYED);
- OS.EnableMenuItem (hMenu, index, uEnable);
- } else {
- MENUITEMINFO info = new MENUITEMINFO ();
- info.cbSize = MENUITEMINFO.sizeof;
- info.fMask = OS.MIIM_STATE;
- boolean success = OS.GetMenuItemInfo (hMenu, id, false, info);
- if (!success) error (SWT.ERROR_CANNOT_SET_ENABLED);
- int bits = OS.MFS_DISABLED | OS.MFS_GRAYED;
- if (enabled) {
- if ((info.fState & bits) == 0) return;
- info.fState &= ~bits;
- } else {
- if ((info.fState & bits) == bits) return;
- info.fState |= bits;
- }
- success = OS.SetMenuItemInfo (hMenu, id, false, info);
- if (!success) error (SWT.ERROR_CANNOT_SET_ENABLED);
- }
- }
- parent.redraw ();
-}
-
-/**
- * Sets the image the receiver will display to the argument.
- * <p>
- * Note: This feature is not available on all window systems (for example, Window NT),
- * in which case, calling this method will silently do nothing.
- *
- * @param menu the image to 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 void setImage (Image image) {
- checkWidget ();
- if ((style & SWT.SEPARATOR) != 0) return;
- super.setImage (image);
- if (OS.IsWinCE) return;
- if ((OS.WIN32_MAJOR << 16 | OS.WIN32_MINOR) < (4 << 16 | 10)) {
- return;
- }
- int hMenu = parent.handle;
- MENUITEMINFO info = new MENUITEMINFO ();
- info.cbSize = MENUITEMINFO.sizeof;
- info.fMask = OS.MIIM_BITMAP;
- if (image != null) info.hbmpItem = OS.HBMMENU_CALLBACK;
- OS.SetMenuItemInfo (hMenu, id, false, info);
- parent.redraw ();
-}
-
-/**
- * Sets the receiver's pull down menu to the argument.
- * Only <code>CASCADE</code> menu items can have a
- * pull down menu. The sequence of key strokes, button presses
- * and/or button releases that are used to request a pull down
- * menu is platform specific.
- *
- * @param menu the new pull down menu
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_MENU_NOT_DROP_DOWN - if the menu is not a drop down menu</li>
- * <li>ERROR_MENUITEM_NOT_CASCADE - if the menu item is not a <code>CASCADE</code></li>
- * <li>ERROR_INVALID_ARGUMENT - if the menu has been disposed</li>
- * <li>ERROR_INVALID_PARENT - if the menu is not in the same widget tree</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 ();
-
- /* Check to make sure the new menu is valid */
- if ((style & SWT.CASCADE) == 0) {
- error (SWT.ERROR_MENUITEM_NOT_CASCADE);
- }
- if (menu != null) {
- if (menu.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
- if ((menu.style & SWT.DROP_DOWN) == 0) {
- error (SWT.ERROR_MENU_NOT_DROP_DOWN);
- }
- if (menu.parent != parent.parent) {
- error (SWT.ERROR_INVALID_PARENT);
- }
- }
-
- /* Assign the new menu */
- Menu oldMenu = this.menu;
- if (oldMenu == menu) return;
- if (oldMenu != null) oldMenu.cascade = null;
- this.menu = menu;
-
- /* Assign the new menu in the OS */
- if ((OS.IsPPC || OS.IsSP) && parent.hwndCB != 0) {
- if (OS.IsPPC) {
- int hwndCB = parent.hwndCB;
- int hMenu = menu == null ? 0 : menu.handle;
- OS.SendMessage (hwndCB, OS.SHCMBM_SETSUBMENU, id, hMenu);
- }
- if (OS.IsSP) error (SWT.ERROR_CANNOT_SET_MENU);
- } else {
- /*
- * Feature in Windows. When SetMenuItemInfo () is used to
- * set a submenu and the menu item already has a submenu,
- * Windows destroys the previous menu. This is undocumented
- * and unexpected but not necessarily wrong. The fix is to
- * remove the item with RemoveMenu () which does not destroy
- * the submenu and then insert the item with InsertMenuItem ().
- */
- int hMenu = parent.handle;
- MENUITEMINFO info = new MENUITEMINFO ();
- info.cbSize = MENUITEMINFO.sizeof;
- info.fMask = OS.MIIM_DATA;
- int index = 0;
- while (OS.GetMenuItemInfo (hMenu, index, true, info)) {
- if (info.dwItemData == id) break;
- index++;
- }
- if (info.dwItemData != id) return;
- int cch = 128;
- int hHeap = OS.GetProcessHeap ();
- int byteCount = cch * TCHAR.sizeof;
- int pszText = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount);
- info.fMask = OS.MIIM_STATE | OS.MIIM_ID | OS.MIIM_TYPE | OS.MIIM_DATA;
- info.dwTypeData = pszText;
- info.cch = cch;
- boolean success = OS.GetMenuItemInfo (hMenu, index, true, info);
- if (menu != null) {
- menu.cascade = this;
- info.fMask |= OS.MIIM_SUBMENU;
- info.hSubMenu = menu.handle;
- }
- OS.RemoveMenu (hMenu, index, OS.MF_BYPOSITION);
- if (OS.IsWinCE) {
- /*
- * On WinCE, InsertMenuItem is not available. SetMenuItemInfo
- * does not set the menu item state and submenu use InsertMenu
- * to set these fields and SetMenuItemInfo to set the menu item
- * data. NOTE: SetMenuItemInfo is also used to set the string
- * that was queried from the original menu item.
- */
- int uIDNewItem = id;
- int uFlags = OS.MF_BYPOSITION;
- if (menu != null) {
- uFlags |= OS.MF_POPUP;
- uIDNewItem = menu.handle;
- }
- TCHAR lpNewItem = new TCHAR (0, "", true);
- success = OS.InsertMenu (hMenu, index, uFlags, uIDNewItem, lpNewItem);
- if (success) {
- info.fMask = OS.MIIM_DATA | OS.MIIM_TYPE;
- success = OS.SetMenuItemInfo (hMenu, index, true, info);
- if ((info.fState & (OS.MFS_DISABLED | OS.MFS_GRAYED)) != 0) {
- OS.EnableMenuItem (hMenu, index, OS.MF_BYPOSITION | OS.MF_GRAYED);
- }
- if ((info.fState & OS.MFS_CHECKED) != 0) {
- OS.CheckMenuItem (hMenu, index, OS.MF_BYPOSITION | OS.MF_CHECKED);
- }
- }
- } else {
- success = OS.InsertMenuItem (hMenu, index, true, info);
- }
- if (pszText != 0) OS.HeapFree (hHeap, 0, pszText);
- if (!success) error (SWT.ERROR_CANNOT_SET_MENU);
- }
- parent.destroyAccelerators ();
-}
-
-boolean setRadioSelection (boolean value) {
- if ((style & SWT.RADIO) == 0) return false;
- if (getSelection () != value) {
- setSelection (value);
- postEvent (SWT.Selection);
- }
- return true;
-}
-
-/**
- * Sets the selection state of the receiver.
- * <p>
- * When the receiver is of type <code>CHECK</code> or <code>RADIO</code>,
- * it is selected when it is checked.
- *
- * @param selected the new selection 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 setSelection (boolean selected) {
- checkWidget ();
- if ((style & (SWT.CHECK | SWT.RADIO)) == 0) return;
- if ((OS.IsPPC || OS.IsSP) && parent.hwndCB != 0) return;
- int hMenu = parent.handle;
- if (OS.IsWinCE) {
- int index = parent.indexOf (this);
- if (index == -1) return;
- int uCheck = OS.MF_BYPOSITION | (selected ? OS.MF_CHECKED : OS.MF_UNCHECKED);
- OS.CheckMenuItem (hMenu, index, uCheck);
- } else {
- MENUITEMINFO info = new MENUITEMINFO ();
- info.cbSize = MENUITEMINFO.sizeof;
- info.fMask = OS.MIIM_STATE;
- boolean success = OS.GetMenuItemInfo (hMenu, id, false, info);
- if (!success) error (SWT.ERROR_CANNOT_SET_SELECTION);
- info.fState &= ~OS.MFS_CHECKED;
- if (selected) info.fState |= OS.MFS_CHECKED;
- success = OS.SetMenuItemInfo (hMenu, id, false, info);
- if (!success) error (SWT.ERROR_CANNOT_SET_SELECTION);
- }
- parent.redraw ();
-}
-/**
- * Sets the receiver's text. The string may include
- * the mnemonic character and accelerator text.
- * <p>
- * Mnemonics are indicated by an '&' that causes the next
- * character to be the mnemonic. When the user presses a
- * key sequence that matches the mnemonic, a selection
- * event occurs. On most platforms, the mnemonic appears
- * underlined but may be emphasised in a platform specific
- * manner. The mnemonic indicator character '&' can be
- * escaped by doubling it in the string, causing a single
- *'&' to be displayed.
- * </p>
- * <p>
- * Accelerator text is indicated by the '\t' character.
- * On platforms that support accelerator text, the text
- * that follows the '\t' character is displayed to the user,
- * typically indicating the key stroke that will cause
- * the item to become selected. On most platforms, the
- * accelerator text appears right aligned in the menu.
- * Setting the accelerator text does not install the
- * accelerator key sequence. The accelerator key sequence
- * is installed using #setAccelerator.
- * </p>
- *
- * @param string the new text
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the text 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 #setAccelerator
- */
-public void setText (String string) {
- checkWidget ();
- if (string == null) error (SWT.ERROR_NULL_ARGUMENT);
- if ((style & SWT.SEPARATOR) != 0) return;
- if (text.equals (string)) return;
- super.setText (string);
- int hHeap = OS.GetProcessHeap ();
- int pszText;
- boolean success = false;
- if ((OS.IsPPC || OS.IsSP) && parent.hwndCB != 0) {
- /*
- * Bug in WinCE PPC. Tool items on the menubar don't resize
- * correctly when the character '&' is used (even when it
- * is a sequence '&&'). The fix is to remove all '&' from
- * the string.
- */
- if (string.indexOf ('&') != -1) {
- int length = string.length ();
- char[] text = new char [length];
- string.getChars( 0, length, text, 0);
- int i = 0, j = 0;
- for (i=0; i<length; i++) {
- if (text[i] != '&') text [j++] = text [i];
- }
- if (j < i) string = new String (text, 0, j);
- }
- /* Use the character encoding for the default locale */
- TCHAR buffer = new TCHAR (0, string, true);
- int byteCount = buffer.length () * TCHAR.sizeof;
- pszText = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount);
- OS.MoveMemory (pszText, buffer, byteCount);
- int hwndCB = parent.hwndCB;
- TBBUTTONINFO info2 = new TBBUTTONINFO ();
- info2.cbSize = TBBUTTONINFO.sizeof;
- info2.dwMask = OS.TBIF_TEXT;
- info2.pszText = pszText;
- success = OS.SendMessage (hwndCB, OS.TB_SETBUTTONINFO, id, info2) != 0;
- } else {
- /* Use the character encoding for the default locale */
- TCHAR buffer = new TCHAR (0, string, true);
- int byteCount = buffer.length () * TCHAR.sizeof;
- pszText = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount);
- OS.MoveMemory (pszText, buffer, byteCount);
- int hMenu = parent.handle;
- MENUITEMINFO info = new MENUITEMINFO ();
- info.cbSize = MENUITEMINFO.sizeof;
- info.fMask = OS.MIIM_TYPE;
- info.fType = widgetStyle ();
- info.dwTypeData = pszText;
- success = OS.SetMenuItemInfo (hMenu, id, false, info);
- /*
- * Bug in Windows 2000. For some reason, when MIIM_TYPE is set
- * on a menu item that also has MIIM_BITMAP, the MIIM_TYPE clears
- * the MIIM_BITMAP style. The fix is to reset both MIIM_BITMAP.
- * Note, this does not happen on Windows 98.
- */
- if (!OS.IsWinCE) {
- if ((OS.WIN32_MAJOR << 16 | OS.WIN32_MINOR) >= (4 << 16 | 10)) {
- if (image != null) {
- info.fMask = OS.MIIM_BITMAP;
- info.hbmpItem = OS.HBMMENU_CALLBACK;
- success = OS.SetMenuItemInfo (hMenu, id, false, info);
- }
- }
- }
- }
- if (pszText != 0) OS.HeapFree (hHeap, 0, pszText);
- if (!success) error (SWT.ERROR_CANNOT_SET_TEXT);
- parent.redraw ();
-}
-
-int widgetStyle () {
- int bits = 0;
- Decorations shell = parent.parent;
- if ((shell.style & SWT.MIRRORED) != 0) {
- if ((parent.style & SWT.LEFT_TO_RIGHT) != 0) {
- bits |= OS.MFT_RIGHTJUSTIFY | OS.MFT_RIGHTORDER;
- }
- } else {
- if ((parent.style & SWT.RIGHT_TO_LEFT) != 0) {
- bits |= OS.MFT_RIGHTJUSTIFY | OS.MFT_RIGHTORDER;
- }
- }
- if ((style & SWT.SEPARATOR) != 0) return bits | OS.MFT_SEPARATOR;
- if ((style & SWT.RADIO) != 0) return bits | OS.MFT_RADIOCHECK;
- return bits | OS.MFT_STRING;
-}
-
-LRESULT wmCommandChild (int wParam, int lParam) {
- if ((style & SWT.CHECK) != 0) {
- setSelection (!getSelection ());
- } else {
- if ((style & SWT.RADIO) != 0) {
- if ((parent.getStyle () & SWT.NO_RADIO_GROUP) != 0) {
- setSelection (!getSelection ());
- } else {
- selectRadio ();
- }
- }
- }
- Event event = new Event ();
- setInputState (event, SWT.Selection);
- postEvent (SWT.Selection, event);
- return null;
-}
-
-LRESULT wmDrawChild (int wParam, int lParam) {
- DRAWITEMSTRUCT struct = new DRAWITEMSTRUCT ();
- OS.MoveMemory (struct, lParam, DRAWITEMSTRUCT.sizeof);
- if (image != null) {
- /*
- * This code intentionally commented.
- */
-// GC gc = GC.win32_new (struct.hDC, null);
-// gc.drawImage (image, struct.left, struct.top);
- int hImage = image.handle;
- switch (image.type) {
- case SWT.BITMAP:
- BITMAP bm = new BITMAP ();
- OS.GetObject (hImage, BITMAP.sizeof, bm);
- int hDC = OS.CreateCompatibleDC (struct.hDC);
- int oldBitmap = OS.SelectObject (hDC, hImage);
- OS.BitBlt (struct.hDC, struct.left, struct.top + 2, bm.bmWidth, bm.bmHeight, hDC, 0, 0, OS.SRCCOPY);
- OS.SelectObject (hDC, oldBitmap);
- OS.DeleteDC (hDC);
- break;
- case SWT.ICON:
- OS.DrawIconEx (struct.hDC, struct.left, struct.top + 2, hImage, 0, 0, 0, 0, OS.DI_NORMAL);
- break;
- }
- }
- return null;
-}
-
-LRESULT wmMeasureChild (int wParam, int lParam) {
- MEASUREITEMSTRUCT struct = new MEASUREITEMSTRUCT ();
- OS.MoveMemory (struct, lParam, MEASUREITEMSTRUCT.sizeof);
- if (image != null) {
- /*
- * Feature in Windows. On Windows 98, it is necessary
- * to add 4 pixels to the width of the image or the image
- * and text are too close. On other Windows platforms,
- * this causes the text of the longest item to touch the
- * accelerator text. The fix is to add only 2 pixels in
- * this case.
- */
- Rectangle rect = image.getBounds ();
- struct.itemWidth = rect.width + (OS.IsWin95 ? 4 : 2);
- struct.itemHeight = rect.height + 4;
- }
- OS.MoveMemory (lParam, struct, MEASUREITEMSTRUCT.sizeof);
- return null;
-}
-
-}
+ * http://www.eclipse.org/legal/cpl-v10.html + */ + +import org.eclipse.swt.internal.win32.*; +import org.eclipse.swt.*; +import org.eclipse.swt.graphics.*; +import org.eclipse.swt.events.*; + +/** + * Instances of this class represent a selectable user interface object + * that issues notification when pressed and released. + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>CHECK, CASCADE, PUSH, RADIO, SEPARATOR</dd> + * <dt><b>Events:</b></dt> + * <dd>Arm, Help, Selection</dd> + * </dl> + * <p> + * Note: Only one of the styles CHECK, CASCADE, PUSH, RADIO and SEPARATOR + * may be specified. + * </p><p> + * IMPORTANT: This class is <em>not</em> intended to be subclassed. + * </p> + */ + +public class MenuItem extends Item { + Menu parent, menu; + int id, accelerator; + +/** + * Constructs a new instance of this class given its parent + * (which must be a <code>Menu</code>) and a style value + * describing its behavior and appearance. The item is added + * to the end of the items maintained by its parent. + * <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 menu 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#CHECK + * @see SWT#CASCADE + * @see SWT#PUSH + * @see SWT#RADIO + * @see SWT#SEPARATOR + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public MenuItem (Menu parent, int style) { + super (parent, checkStyle (style)); + this.parent = parent; + parent.createItem (this, parent.getItemCount ()); +} + +/** + * Constructs a new instance of this class given its parent + * (which must be a <code>Menu</code>), a style value + * describing its behavior and appearance, and the index + * at which to place it in the items maintained by its parent. + * <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 menu control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * @param index the index to store the receiver in its parent + * + * @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#CHECK + * @see SWT#CASCADE + * @see SWT#PUSH + * @see SWT#RADIO + * @see SWT#SEPARATOR + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public MenuItem (Menu parent, int style, int index) { + super (parent, checkStyle (style)); + this.parent = parent; + parent.createItem (this, index); +} + +MenuItem (Menu parent, Menu menu, int style, int index) { + super (parent, checkStyle (style)); + this.parent = parent; + this.menu = menu; + if (menu != null) menu.cascade = this; + Decorations shell = parent.parent; + shell.add (this); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the arm events are generated for the control, by sending + * it one of the messages defined in the <code>ArmListener</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 ArmListener + * @see #removeArmListener + */ +public void addArmListener (ArmListener listener) { + checkWidget (); + if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (SWT.Arm, typedListener); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the 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 the control is selected, by sending + * it one of the messages defined in the <code>SelectionListener</code> + * interface. + * <p> + * When <code>widgetSelected</code> is called, the stateMask field of the event object is valid. + * <code>widgetDefaultSelected</code> is not called. + * </p> + * + * @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 SelectionListener + * @see #removeSelectionListener + * @see SelectionEvent + */ +public void addSelectionListener (SelectionListener listener) { + checkWidget (); + if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener(listener); + addListener (SWT.Selection,typedListener); + addListener (SWT.DefaultSelection,typedListener); +} + +protected void checkSubclass () { + if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS); +} + +static int checkStyle (int style) { + return checkBits (style, SWT.PUSH, SWT.CHECK, SWT.RADIO, SWT.SEPARATOR, SWT.CASCADE, 0); +} + +void fillAccel (ACCEL accel) { + accel.fVirt = 0; + accel.cmd = accel.key = 0; + if (accelerator == 0) return; + int fVirt = OS.FVIRTKEY; + int key = accelerator & SWT.KEY_MASK; + int vKey = Display.untranslateKey (key); + if (vKey != 0) { + key = vKey; + } else { + switch (key) { + /* + * Bug in Windows. For some reason, VkKeyScan + * fails to map ESC to VK_ESCAPE and DEL to + * VK_DELETE. The fix is to map these keys + * as a special case. + */ + case 27: key = OS.VK_ESCAPE; break; + case 127: key = OS.VK_DELETE; break; + default: { + key = wcsToMbcs ((char) key); + if (key == 0) return; + if (OS.IsWinCE) { + key = OS.CharUpper ((short) key); + } else { + vKey = OS.VkKeyScan ((short) key) & 0xFF; + if (vKey == -1) { + fVirt = 0; + } else { + key = vKey; + } + } + } + } + } + accel.key = (short) key; + accel.cmd = (short) id; + accel.fVirt = (byte) fVirt; + if ((accelerator & SWT.ALT) != 0) accel.fVirt |= OS.FALT; + if ((accelerator & SWT.SHIFT) != 0) accel.fVirt |= OS.FSHIFT; + if ((accelerator & SWT.CONTROL) != 0) accel.fVirt |= OS.FCONTROL; +} + +/** + * Return the widget accelerator. An accelerator is the bit-wise + * OR of zero or more modifier masks and a key. Examples: + * <code>SWT.CONTROL | SWT.SHIFT | 'T', SWT.ALT | SWT.F2</code>. + * + * @return the accelerator + * + * </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 int getAccelerator () { + checkWidget (); + return accelerator; +} + +public Display getDisplay () { + Menu 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 (); + if ((OS.IsPPC || OS.IsSP) && parent.hwndCB != 0) { + int hwndCB = parent.hwndCB; + TBBUTTONINFO info = new TBBUTTONINFO (); + info.cbSize = TBBUTTONINFO.sizeof; + info.dwMask = OS.TBIF_STATE; + OS.SendMessage (hwndCB, OS.TB_GETBUTTONINFO, id, info); + return (info.fsState & OS.TBSTATE_ENABLED) != 0; + } + int hMenu = parent.handle; + MENUITEMINFO info = new MENUITEMINFO (); + info.cbSize = MENUITEMINFO.sizeof; + info.fMask = OS.MIIM_STATE; + boolean success; + if (OS.IsWinCE) { + int index = parent.indexOf (this); + if (index == -1) error (SWT.ERROR_CANNOT_GET_ENABLED); + success = OS.GetMenuItemInfo (hMenu, index, true, info); + } else { + success = OS.GetMenuItemInfo (hMenu, id, false, info); + } + if (!success) error (SWT.ERROR_CANNOT_GET_ENABLED); + return (info.fState & (OS.MFS_DISABLED | OS.MFS_GRAYED)) == 0; +} + +/** + * Returns the receiver's cascade menu if it has one or null + * if it does not. Only <code>CASCADE</code> menu items can have + * a pull down menu. The sequence of key strokes, button presses + * and/or button releases that are used to request a pull down + * 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; +} + +String getNameText () { + if ((style & SWT.SEPARATOR) != 0) return "|"; + return super.getNameText (); +} + +/** + * Returns the receiver's parent, which must be a <code>Menu</code>. + * + * @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 Menu getParent () { + checkWidget (); + return parent; +} + +/** + * Returns <code>true</code> if the receiver is selected, + * and false otherwise. + * <p> + * When the receiver is of type <code>CHECK</code> or <code>RADIO</code>, + * it is selected when it is checked. + * + * @return the selection 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 getSelection () { + checkWidget (); + if ((style & (SWT.CHECK | SWT.RADIO)) == 0) return false; + if ((OS.IsPPC || OS.IsSP) && parent.hwndCB != 0) return false; + int hMenu = parent.handle; + MENUITEMINFO info = new MENUITEMINFO (); + info.cbSize = MENUITEMINFO.sizeof; + info.fMask = OS.MIIM_STATE; + boolean success = OS.GetMenuItemInfo (hMenu, id, false, info); + if (!success) error (SWT.ERROR_CANNOT_GET_SELECTION); + return (info.fState & OS.MFS_CHECKED) !=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 () { + return getEnabled () && parent.isEnabled (); +} + +void releaseChild () { + super.releaseChild (); + if (menu != null) menu.dispose (); + menu = null; + parent.destroyItem (this); +} + +void releaseMenu () { + if (!OS.IsSP) setMenu (null); + menu = null; +} + +void releaseWidget () { + if (menu != null) menu.releaseResources (); + menu = null; + super.releaseWidget (); + if (accelerator != 0) { + parent.destroyAccelerators (); + } + accelerator = 0; + Decorations shell = parent.parent; + shell.remove (this); + parent = null; +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the arm 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 ArmListener + * @see #addArmListener + */ +public void removeArmListener (ArmListener listener) { + checkWidget (); + if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); + if (eventTable == null) return; + eventTable.unhook (SWT.Arm, 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 the control is selected. + * + * @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 SelectionListener + * @see #addSelectionListener + */ +public void removeSelectionListener (SelectionListener listener) { + checkWidget (); + if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); + if (eventTable == null) return; + eventTable.unhook (SWT.Selection, listener); + eventTable.unhook (SWT.DefaultSelection,listener); +} + +void selectRadio () { + int index = 0; + MenuItem [] items = parent.getItems (); + while (index < items.length && items [index] != this) index++; + int i = index - 1; + while (i >= 0 && items [i].setRadioSelection (false)) --i; + int j = index + 1; + while (j < items.length && items [j].setRadioSelection (false)) j++; + setSelection (true); +} + +/** + * Sets the widget accelerator. An accelerator is the bit-wise + * OR of zero or more modifier masks and a key. Examples: + * <code>SWT.MOD1 | SWT.MOD2 | 'T', SWT.MOD3 | SWT.F2</code>. + * <code>SWT.CONTROL | SWT.SHIFT | 'T', SWT.ALT | SWT.F2</code>. + * + * @param accelerator an integer that is the bit-wise OR of masks and a key + * + * </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 setAccelerator (int accelerator) { + checkWidget (); + if (this.accelerator == accelerator) return; + this.accelerator = accelerator; + parent.destroyAccelerators (); +} + +/** + * 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 (); + if ((OS.IsPPC || OS.IsSP) && parent.hwndCB != 0) { + int hwndCB = parent.hwndCB; + TBBUTTONINFO info = new TBBUTTONINFO (); + info.cbSize = TBBUTTONINFO.sizeof; + info.dwMask = OS.TBIF_STATE; + OS.SendMessage (hwndCB, OS.TB_GETBUTTONINFO, id, info); + info.fsState &= ~OS.TBSTATE_ENABLED; + if (enabled) info.fsState |= OS.TBSTATE_ENABLED; + OS.SendMessage (hwndCB, OS.TB_SETBUTTONINFO, id, info); + } else { + int hMenu = parent.handle; + if (OS.IsWinCE) { + int index = parent.indexOf (this); + if (index == -1) return; + int uEnable = OS.MF_BYPOSITION | (enabled ? OS.MF_ENABLED : OS.MF_GRAYED); + OS.EnableMenuItem (hMenu, index, uEnable); + } else { + MENUITEMINFO info = new MENUITEMINFO (); + info.cbSize = MENUITEMINFO.sizeof; + info.fMask = OS.MIIM_STATE; + boolean success = OS.GetMenuItemInfo (hMenu, id, false, info); + if (!success) error (SWT.ERROR_CANNOT_SET_ENABLED); + int bits = OS.MFS_DISABLED | OS.MFS_GRAYED; + if (enabled) { + if ((info.fState & bits) == 0) return; + info.fState &= ~bits; + } else { + if ((info.fState & bits) == bits) return; + info.fState |= bits; + } + success = OS.SetMenuItemInfo (hMenu, id, false, info); + if (!success) error (SWT.ERROR_CANNOT_SET_ENABLED); + } + } + parent.redraw (); +} + +/** + * Sets the image the receiver will display to the argument. + * <p> + * Note: This feature is not available on all window systems (for example, Window NT), + * in which case, calling this method will silently do nothing. + * + * @param menu the image to 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 void setImage (Image image) { + checkWidget (); + if ((style & SWT.SEPARATOR) != 0) return; + super.setImage (image); + if (OS.IsWinCE) return; + if ((OS.WIN32_MAJOR << 16 | OS.WIN32_MINOR) < (4 << 16 | 10)) { + return; + } + int hMenu = parent.handle; + MENUITEMINFO info = new MENUITEMINFO (); + info.cbSize = MENUITEMINFO.sizeof; + info.fMask = OS.MIIM_BITMAP; + if (image != null) info.hbmpItem = OS.HBMMENU_CALLBACK; + OS.SetMenuItemInfo (hMenu, id, false, info); + parent.redraw (); +} + +/** + * Sets the receiver's pull down menu to the argument. + * Only <code>CASCADE</code> menu items can have a + * pull down menu. The sequence of key strokes, button presses + * and/or button releases that are used to request a pull down + * menu is platform specific. + * + * @param menu the new pull down menu + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_MENU_NOT_DROP_DOWN - if the menu is not a drop down menu</li> + * <li>ERROR_MENUITEM_NOT_CASCADE - if the menu item is not a <code>CASCADE</code></li> + * <li>ERROR_INVALID_ARGUMENT - if the menu has been disposed</li> + * <li>ERROR_INVALID_PARENT - if the menu is not in the same widget tree</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 (); + + /* Check to make sure the new menu is valid */ + if ((style & SWT.CASCADE) == 0) { + error (SWT.ERROR_MENUITEM_NOT_CASCADE); + } + if (menu != null) { + if (menu.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT); + if ((menu.style & SWT.DROP_DOWN) == 0) { + error (SWT.ERROR_MENU_NOT_DROP_DOWN); + } + if (menu.parent != parent.parent) { + error (SWT.ERROR_INVALID_PARENT); + } + } + + /* Assign the new menu */ + Menu oldMenu = this.menu; + if (oldMenu == menu) return; + if (oldMenu != null) oldMenu.cascade = null; + this.menu = menu; + + /* Assign the new menu in the OS */ + if ((OS.IsPPC || OS.IsSP) && parent.hwndCB != 0) { + if (OS.IsPPC) { + int hwndCB = parent.hwndCB; + int hMenu = menu == null ? 0 : menu.handle; + OS.SendMessage (hwndCB, OS.SHCMBM_SETSUBMENU, id, hMenu); + } + if (OS.IsSP) error (SWT.ERROR_CANNOT_SET_MENU); + } else { + /* + * Feature in Windows. When SetMenuItemInfo () is used to + * set a submenu and the menu item already has a submenu, + * Windows destroys the previous menu. This is undocumented + * and unexpected but not necessarily wrong. The fix is to + * remove the item with RemoveMenu () which does not destroy + * the submenu and then insert the item with InsertMenuItem (). + */ + int hMenu = parent.handle; + MENUITEMINFO info = new MENUITEMINFO (); + info.cbSize = MENUITEMINFO.sizeof; + info.fMask = OS.MIIM_DATA; + int index = 0; + while (OS.GetMenuItemInfo (hMenu, index, true, info)) { + if (info.dwItemData == id) break; + index++; + } + if (info.dwItemData != id) return; + int cch = 128; + int hHeap = OS.GetProcessHeap (); + int byteCount = cch * TCHAR.sizeof; + int pszText = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); + info.fMask = OS.MIIM_STATE | OS.MIIM_ID | OS.MIIM_TYPE | OS.MIIM_DATA; + info.dwTypeData = pszText; + info.cch = cch; + boolean success = OS.GetMenuItemInfo (hMenu, index, true, info); + if (menu != null) { + menu.cascade = this; + info.fMask |= OS.MIIM_SUBMENU; + info.hSubMenu = menu.handle; + } + OS.RemoveMenu (hMenu, index, OS.MF_BYPOSITION); + if (OS.IsWinCE) { + /* + * On WinCE, InsertMenuItem is not available. SetMenuItemInfo + * does not set the menu item state and submenu use InsertMenu + * to set these fields and SetMenuItemInfo to set the menu item + * data. NOTE: SetMenuItemInfo is also used to set the string + * that was queried from the original menu item. + */ + int uIDNewItem = id; + int uFlags = OS.MF_BYPOSITION; + if (menu != null) { + uFlags |= OS.MF_POPUP; + uIDNewItem = menu.handle; + } + TCHAR lpNewItem = new TCHAR (0, "", true); + success = OS.InsertMenu (hMenu, index, uFlags, uIDNewItem, lpNewItem); + if (success) { + info.fMask = OS.MIIM_DATA | OS.MIIM_TYPE; + success = OS.SetMenuItemInfo (hMenu, index, true, info); + if ((info.fState & (OS.MFS_DISABLED | OS.MFS_GRAYED)) != 0) { + OS.EnableMenuItem (hMenu, index, OS.MF_BYPOSITION | OS.MF_GRAYED); + } + if ((info.fState & OS.MFS_CHECKED) != 0) { + OS.CheckMenuItem (hMenu, index, OS.MF_BYPOSITION | OS.MF_CHECKED); + } + } + } else { + success = OS.InsertMenuItem (hMenu, index, true, info); + } + if (pszText != 0) OS.HeapFree (hHeap, 0, pszText); + if (!success) error (SWT.ERROR_CANNOT_SET_MENU); + } + parent.destroyAccelerators (); +} + +boolean setRadioSelection (boolean value) { + if ((style & SWT.RADIO) == 0) return false; + if (getSelection () != value) { + setSelection (value); + postEvent (SWT.Selection); + } + return true; +} + +/** + * Sets the selection state of the receiver. + * <p> + * When the receiver is of type <code>CHECK</code> or <code>RADIO</code>, + * it is selected when it is checked. + * + * @param selected the new selection 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 setSelection (boolean selected) { + checkWidget (); + if ((style & (SWT.CHECK | SWT.RADIO)) == 0) return; + if ((OS.IsPPC || OS.IsSP) && parent.hwndCB != 0) return; + int hMenu = parent.handle; + if (OS.IsWinCE) { + int index = parent.indexOf (this); + if (index == -1) return; + int uCheck = OS.MF_BYPOSITION | (selected ? OS.MF_CHECKED : OS.MF_UNCHECKED); + OS.CheckMenuItem (hMenu, index, uCheck); + } else { + MENUITEMINFO info = new MENUITEMINFO (); + info.cbSize = MENUITEMINFO.sizeof; + info.fMask = OS.MIIM_STATE; + boolean success = OS.GetMenuItemInfo (hMenu, id, false, info); + if (!success) error (SWT.ERROR_CANNOT_SET_SELECTION); + info.fState &= ~OS.MFS_CHECKED; + if (selected) info.fState |= OS.MFS_CHECKED; + success = OS.SetMenuItemInfo (hMenu, id, false, info); + if (!success) error (SWT.ERROR_CANNOT_SET_SELECTION); + } + parent.redraw (); +} +/** + * Sets the receiver's text. The string may include + * the mnemonic character and accelerator text. + * <p> + * Mnemonics are indicated by an '&' that causes the next + * character to be the mnemonic. When the user presses a + * key sequence that matches the mnemonic, a selection + * event occurs. On most platforms, the mnemonic appears + * underlined but may be emphasised in a platform specific + * manner. The mnemonic indicator character '&' can be + * escaped by doubling it in the string, causing a single + *'&' to be displayed. + * </p> + * <p> + * Accelerator text is indicated by the '\t' character. + * On platforms that support accelerator text, the text + * that follows the '\t' character is displayed to the user, + * typically indicating the key stroke that will cause + * the item to become selected. On most platforms, the + * accelerator text appears right aligned in the menu. + * Setting the accelerator text does not install the + * accelerator key sequence. The accelerator key sequence + * is installed using #setAccelerator. + * </p> + * + * @param string the new text + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the text 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 #setAccelerator + */ +public void setText (String string) { + checkWidget (); + if (string == null) error (SWT.ERROR_NULL_ARGUMENT); + if ((style & SWT.SEPARATOR) != 0) return; + if (text.equals (string)) return; + super.setText (string); + int hHeap = OS.GetProcessHeap (); + int pszText; + boolean success = false; + if ((OS.IsPPC || OS.IsSP) && parent.hwndCB != 0) { + /* + * Bug in WinCE PPC. Tool items on the menubar don't resize + * correctly when the character '&' is used (even when it + * is a sequence '&&'). The fix is to remove all '&' from + * the string. + */ + if (string.indexOf ('&') != -1) { + int length = string.length (); + char[] text = new char [length]; + string.getChars( 0, length, text, 0); + int i = 0, j = 0; + for (i=0; i<length; i++) { + if (text[i] != '&') text [j++] = text [i]; + } + if (j < i) string = new String (text, 0, j); + } + /* Use the character encoding for the default locale */ + TCHAR buffer = new TCHAR (0, string, true); + int byteCount = buffer.length () * TCHAR.sizeof; + pszText = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); + OS.MoveMemory (pszText, buffer, byteCount); + int hwndCB = parent.hwndCB; + TBBUTTONINFO info2 = new TBBUTTONINFO (); + info2.cbSize = TBBUTTONINFO.sizeof; + info2.dwMask = OS.TBIF_TEXT; + info2.pszText = pszText; + success = OS.SendMessage (hwndCB, OS.TB_SETBUTTONINFO, id, info2) != 0; + } else { + /* Use the character encoding for the default locale */ + TCHAR buffer = new TCHAR (0, string, true); + int byteCount = buffer.length () * TCHAR.sizeof; + pszText = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); + OS.MoveMemory (pszText, buffer, byteCount); + int hMenu = parent.handle; + MENUITEMINFO info = new MENUITEMINFO (); + info.cbSize = MENUITEMINFO.sizeof; + info.fMask = OS.MIIM_TYPE; + info.fType = widgetStyle (); + info.dwTypeData = pszText; + success = OS.SetMenuItemInfo (hMenu, id, false, info); + /* + * Bug in Windows 2000. For some reason, when MIIM_TYPE is set + * on a menu item that also has MIIM_BITMAP, the MIIM_TYPE clears + * the MIIM_BITMAP style. The fix is to reset both MIIM_BITMAP. + * Note, this does not happen on Windows 98. + */ + if (!OS.IsWinCE) { + if ((OS.WIN32_MAJOR << 16 | OS.WIN32_MINOR) >= (4 << 16 | 10)) { + if (image != null) { + info.fMask = OS.MIIM_BITMAP; + info.hbmpItem = OS.HBMMENU_CALLBACK; + success = OS.SetMenuItemInfo (hMenu, id, false, info); + } + } + } + } + if (pszText != 0) OS.HeapFree (hHeap, 0, pszText); + if (!success) error (SWT.ERROR_CANNOT_SET_TEXT); + parent.redraw (); +} + +int widgetStyle () { + int bits = 0; + Decorations shell = parent.parent; + if ((shell.style & SWT.MIRRORED) != 0) { + if ((parent.style & SWT.LEFT_TO_RIGHT) != 0) { + bits |= OS.MFT_RIGHTJUSTIFY | OS.MFT_RIGHTORDER; + } + } else { + if ((parent.style & SWT.RIGHT_TO_LEFT) != 0) { + bits |= OS.MFT_RIGHTJUSTIFY | OS.MFT_RIGHTORDER; + } + } + if ((style & SWT.SEPARATOR) != 0) return bits | OS.MFT_SEPARATOR; + if ((style & SWT.RADIO) != 0) return bits | OS.MFT_RADIOCHECK; + return bits | OS.MFT_STRING; +} + +LRESULT wmCommandChild (int wParam, int lParam) { + if ((style & SWT.CHECK) != 0) { + setSelection (!getSelection ()); + } else { + if ((style & SWT.RADIO) != 0) { + if ((parent.getStyle () & SWT.NO_RADIO_GROUP) != 0) { + setSelection (!getSelection ()); + } else { + selectRadio (); + } + } + } + Event event = new Event (); + setInputState (event, SWT.Selection); + postEvent (SWT.Selection, event); + return null; +} + +LRESULT wmDrawChild (int wParam, int lParam) { + DRAWITEMSTRUCT struct = new DRAWITEMSTRUCT (); + OS.MoveMemory (struct, lParam, DRAWITEMSTRUCT.sizeof); + if (image != null) { + /* + * This code intentionally commented. + */ +// GC gc = GC.win32_new (struct.hDC, null); +// gc.drawImage (image, struct.left, struct.top); + int hImage = image.handle; + switch (image.type) { + case SWT.BITMAP: + BITMAP bm = new BITMAP (); + OS.GetObject (hImage, BITMAP.sizeof, bm); + int hDC = OS.CreateCompatibleDC (struct.hDC); + int oldBitmap = OS.SelectObject (hDC, hImage); + OS.BitBlt (struct.hDC, struct.left, struct.top + 2, bm.bmWidth, bm.bmHeight, hDC, 0, 0, OS.SRCCOPY); + OS.SelectObject (hDC, oldBitmap); + OS.DeleteDC (hDC); + break; + case SWT.ICON: + OS.DrawIconEx (struct.hDC, struct.left, struct.top + 2, hImage, 0, 0, 0, 0, OS.DI_NORMAL); + break; + } + } + return null; +} + +LRESULT wmMeasureChild (int wParam, int lParam) { + MEASUREITEMSTRUCT struct = new MEASUREITEMSTRUCT (); + OS.MoveMemory (struct, lParam, MEASUREITEMSTRUCT.sizeof); + if (image != null) { + /* + * Feature in Windows. On Windows 98, it is necessary + * to add 4 pixels to the width of the image or the image + * and text are too close. On other Windows platforms, + * this causes the text of the longest item to touch the + * accelerator text. The fix is to add only 2 pixels in + * this case. + */ + Rectangle rect = image.getBounds (); + struct.itemWidth = rect.width + (OS.IsWin95 ? 4 : 2); + struct.itemHeight = rect.height + 4; + } + OS.MoveMemory (lParam, struct, MEASUREITEMSTRUCT.sizeof); + return null; +} + +} |