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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Combo.java')
| -rwxr-xr-x | bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Combo.java | 2489 |
1 files changed, 0 insertions, 2489 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Combo.java b/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Combo.java deleted file mode 100755 index 694b566adb..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Combo.java +++ /dev/null @@ -1,2489 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2009 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * IBM Corporation - initial API and implementation - *******************************************************************************/ -package org.eclipse.swt.widgets; - - -import org.eclipse.swt.internal.*; -import org.eclipse.swt.internal.win32.*; -import org.eclipse.swt.*; -import org.eclipse.swt.graphics.*; -import org.eclipse.swt.events.*; - -/** - * Instances of this class are controls that allow the user - * to choose an item from a list of items, or optionally - * enter a new value by typing it into an editable text - * field. Often, <code>Combo</code>s are used in the same place - * where a single selection <code>List</code> widget could - * be used but space is limited. A <code>Combo</code> takes - * less space than a <code>List</code> widget and shows - * similar information. - * <p> - * Note: Since <code>Combo</code>s can contain both a list - * and an editable text field, it is possible to confuse methods - * which access one versus the other (compare for example, - * <code>clearSelection()</code> and <code>deselectAll()</code>). - * The API documentation is careful to indicate either "the - * receiver's list" or the "the receiver's text field" to - * distinguish between the two cases. - * </p><p> - * Note that although this class is a subclass of <code>Composite</code>, - * it does not make sense to add children to it, or set a layout on it. - * </p> - * <dl> - * <dt><b>Styles:</b></dt> - * <dd>DROP_DOWN, READ_ONLY, SIMPLE</dd> - * <dt><b>Events:</b></dt> - * <dd>DefaultSelection, Modify, Selection, Verify</dd> - * </dl> - * <p> - * Note: Only one of the styles DROP_DOWN and SIMPLE may be specified. - * </p><p> - * IMPORTANT: This class is <em>not</em> intended to be subclassed. - * </p> - * - * @see List - * @see <a href="http://www.eclipse.org/swt/snippets/#combo">Combo snippets</a> - * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: ControlExample</a> - * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> - * @noextend This class is not intended to be subclassed by clients. - */ - -public class Combo extends Composite { - boolean noSelection, ignoreDefaultSelection, ignoreCharacter, ignoreModify, ignoreResize, lockText; - int scrollWidth, visibleCount = 5; - int /*long*/ cbtHook; - /** - * the operating system limit for the number of characters - * that the text field in an instance of this class can hold - */ - public static final int LIMIT; - - /* - * These values can be different on different platforms. - * Therefore they are not initialized in the declaration - * to stop the compiler from inlining. - */ - static { - LIMIT = OS.IsWinNT ? 0x7FFFFFFF : 0x7FFF; - } - - /* - * These are the undocumented control id's for the children of - * a combo box. Since there are no constants for these values, - * they may change with different versions of Windows (but have - * been the same since Windows 3.0). - */ - static final int CBID_LIST = 1000; - static final int CBID_EDIT = 1001; - static /*final*/ int /*long*/ EditProc, ListProc; - - static final int /*long*/ ComboProc; - static final TCHAR ComboClass = new TCHAR (0, "COMBOBOX", true); - static { - WNDCLASS lpWndClass = new WNDCLASS (); - OS.GetClassInfo (0, ComboClass, lpWndClass); - ComboProc = lpWndClass.lpfnWndProc; - } - -/** - * 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#DROP_DOWN - * @see SWT#READ_ONLY - * @see SWT#SIMPLE - * @see Widget#checkSubclass - * @see Widget#getStyle - */ -public Combo (Composite parent, int style) { - super (parent, checkStyle (style)); - /* This code is intentionally commented */ - //if ((style & SWT.H_SCROLL) != 0) this.style |= SWT.H_SCROLL; - this.style |= SWT.H_SCROLL; -} - -/** - * Adds the argument to the end of the receiver's list. - * - * @param string the new item - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the string 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 #add(String,int) - */ -public void add (String string) { - checkWidget (); - if (string == null) error (SWT.ERROR_NULL_ARGUMENT); - TCHAR buffer = new TCHAR (getCodePage (), string, true); - int result = (int)/*64*/OS.SendMessage (handle, OS.CB_ADDSTRING, 0, buffer); - if (result == OS.CB_ERR) error (SWT.ERROR_ITEM_NOT_ADDED); - if (result == OS.CB_ERRSPACE) error (SWT.ERROR_ITEM_NOT_ADDED); - if ((style & SWT.H_SCROLL) != 0) setScrollWidth (buffer, true); -} - -/** - * Adds the argument to the receiver's list at the given - * zero-relative index. - * <p> - * Note: To add an item at the end of the list, use the - * result of calling <code>getItemCount()</code> as the - * index or use <code>add(String)</code>. - * </p> - * - * @param string the new item - * @param index the index for the item - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the string is null</li> - * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list (inclusive)</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 #add(String) - */ -public void add (String string, int index) { - checkWidget (); - if (string == null) error (SWT.ERROR_NULL_ARGUMENT); - int count = (int)/*64*/OS.SendMessage (handle, OS.CB_GETCOUNT, 0, 0); - if (!(0 <= index && index <= count)) { - error (SWT.ERROR_INVALID_RANGE); - } - TCHAR buffer = new TCHAR (getCodePage (), string, true); - int result = (int)/*64*/OS.SendMessage (handle, OS.CB_INSERTSTRING, index, buffer); - if (result == OS.CB_ERRSPACE || result == OS.CB_ERR) { - error (SWT.ERROR_ITEM_NOT_ADDED); - } - if ((style & SWT.H_SCROLL) != 0) setScrollWidth (buffer, true); -} - -/** - * Adds the listener to the collection of listeners who will - * be notified when the receiver's text is modified, by sending - * it one of the messages defined in the <code>ModifyListener</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 ModifyListener - * @see #removeModifyListener - */ -public void addModifyListener (ModifyListener listener) { - checkWidget (); - if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); - TypedListener typedListener = new TypedListener (listener); - addListener (SWT.Modify, typedListener); -} - -/** - * Adds the listener to the collection of listeners who will - * be notified when the user changes the receiver's selection, by sending - * it one of the messages defined in the <code>SelectionListener</code> - * interface. - * <p> - * <code>widgetSelected</code> is called when the user changes the combo's list selection. - * <code>widgetDefaultSelected</code> is typically called when ENTER is pressed the combo's text area. - * </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); -} - -/** - * Adds the listener to the collection of listeners who will - * be notified when the receiver's text is verified, by sending - * it one of the messages defined in the <code>VerifyListener</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 VerifyListener - * @see #removeVerifyListener - * - * @since 3.1 - */ -public void addVerifyListener (VerifyListener listener) { - checkWidget (); - if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); - TypedListener typedListener = new TypedListener (listener); - addListener (SWT.Verify, typedListener); -} - -int /*long*/ callWindowProc (int /*long*/ hwnd, int msg, int /*long*/ wParam, int /*long*/ lParam) { - if (handle == 0) return 0; - if (hwnd == handle) { - switch (msg) { - case OS.WM_SIZE: { - ignoreResize = true; - int /*long*/ result = OS.CallWindowProc (ComboProc, hwnd, msg, wParam, lParam); - ignoreResize = false; - return result; - } - } - return OS.CallWindowProc (ComboProc, hwnd, msg, wParam, lParam); - } - int /*long*/ hwndText = OS.GetDlgItem (handle, CBID_EDIT); - if (hwnd == hwndText) { - if (lockText && msg == OS.WM_SETTEXT) return 0; - return OS.CallWindowProc (EditProc, hwnd, msg, wParam, lParam); - } - int /*long*/ hwndList = OS.GetDlgItem (handle, CBID_LIST); - if (hwnd == hwndList) { - return OS.CallWindowProc (ListProc, hwnd, msg, wParam, lParam); - } - return OS.DefWindowProc (hwnd, msg, wParam, lParam); -} - -int /*long*/ CBTProc (int /*long*/ nCode, int /*long*/ wParam, int /*long*/ lParam) { - if ((int)/*64*/nCode == OS.HCBT_CREATEWND) { - TCHAR buffer = new TCHAR (0, 128); - OS.GetClassName (wParam, buffer, buffer.length ()); - String className = buffer.toString (0, buffer.strlen ()); - if (className.equals ("Edit") || className.equals ("EDIT")) { //$NON-NLS-1$ //$NON-NLS-2$ - int bits = OS.GetWindowLong (wParam, OS.GWL_STYLE); - OS.SetWindowLong (wParam, OS.GWL_STYLE, bits & ~OS.ES_NOHIDESEL); - } - } - return OS.CallNextHookEx (cbtHook, (int)/*64*/nCode, wParam, lParam); -} - -boolean checkHandle (int /*long*/ hwnd) { - return hwnd == handle || hwnd == OS.GetDlgItem (handle, CBID_EDIT) || hwnd == OS.GetDlgItem (handle, CBID_LIST); -} - -protected void checkSubclass () { - if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS); -} - -static int checkStyle (int style) { - /* - * Feature in Windows. It is not possible to create - * a combo box that has a border using Windows style - * bits. All combo boxes draw their own border and - * do not use the standard Windows border styles. - * Therefore, no matter what style bits are specified, - * clear the BORDER bits so that the SWT style will - * match the Windows widget. - * - * The Windows behavior is currently implemented on - * all platforms. - */ - style &= ~SWT.BORDER; - - /* - * Even though it is legal to create this widget - * with scroll bars, they serve no useful purpose - * because they do not automatically scroll the - * widget's client area. The fix is to clear - * the SWT style. - */ - style &= ~(SWT.H_SCROLL | SWT.V_SCROLL); - style = checkBits (style, SWT.DROP_DOWN, SWT.SIMPLE, 0, 0, 0, 0); - if ((style & SWT.SIMPLE) != 0) return style & ~SWT.READ_ONLY; - return style; -} - -/** - * Sets the selection in the receiver's text field to an empty - * selection starting just before the first character. If the - * text field is editable, this has the effect of placing the - * i-beam at the start of the text. - * <p> - * Note: To clear the selected items in the receiver's list, - * use <code>deselectAll()</code>. - * </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 #deselectAll - */ -public void clearSelection () { - checkWidget (); - OS.SendMessage (handle, OS.CB_SETEDITSEL, 0, -1); -} - -public Point computeSize (int wHint, int hHint, boolean changed) { - checkWidget (); - int width = 0, height = 0; - if (wHint == SWT.DEFAULT) { - int /*long*/ newFont, oldFont = 0; - int /*long*/ hDC = OS.GetDC (handle); - newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); - if (newFont != 0) oldFont = OS.SelectObject (hDC, newFont); - int count = (int)/*64*/OS.SendMessage (handle, OS.CB_GETCOUNT, 0, 0); - RECT rect = new RECT (); - int flags = OS.DT_CALCRECT | OS.DT_NOPREFIX; - if ((style & SWT.READ_ONLY) == 0) flags |= OS.DT_EDITCONTROL; - int length = OS.GetWindowTextLength (handle); - int cp = getCodePage (); - TCHAR buffer = new TCHAR (cp, length + 1); - OS.GetWindowText (handle, buffer, length + 1); - OS.DrawText (hDC, buffer, length, rect, flags); - width = Math.max (width, rect.right - rect.left); - if ((style & SWT.H_SCROLL) != 0) { - width = Math.max (width, scrollWidth); - } else { - for (int i=0; i<count; i++) { - length = (int)/*64*/OS.SendMessage (handle, OS.CB_GETLBTEXTLEN, i, 0); - if (length != OS.CB_ERR) { - if (length + 1 > buffer.length ()) buffer = new TCHAR (cp, length + 1); - int result = (int)/*64*/OS.SendMessage (handle, OS.CB_GETLBTEXT, i, buffer); - if (result != OS.CB_ERR) { - OS.DrawText (hDC, buffer, length, rect, flags); - width = Math.max (width, rect.right - rect.left); - } - } - } - } - if (newFont != 0) OS.SelectObject (hDC, oldFont); - OS.ReleaseDC (handle, hDC); - } - if (hHint == SWT.DEFAULT) { - if ((style & SWT.SIMPLE) != 0) { - int count = (int)/*64*/OS.SendMessage (handle, OS.CB_GETCOUNT, 0, 0); - int itemHeight = (int)/*64*/OS.SendMessage (handle, OS.CB_GETITEMHEIGHT, 0, 0); - height = count * itemHeight; - } - } - if (width == 0) width = DEFAULT_WIDTH; - if (height == 0) height = DEFAULT_HEIGHT; - if (wHint != SWT.DEFAULT) width = wHint; - if (hHint != SWT.DEFAULT) height = hHint; - if ((style & SWT.READ_ONLY) != 0) { - width += 8; - } else { - int /*long*/ hwndText = OS.GetDlgItem (handle, CBID_EDIT); - if (hwndText != 0) { - int /*long*/ margins = OS.SendMessage (hwndText, OS.EM_GETMARGINS, 0, 0); - int marginWidth = OS.LOWORD (margins) + OS.HIWORD (margins); - width += marginWidth + 3; - } - } - COMBOBOXINFO pcbi = new COMBOBOXINFO (); - pcbi.cbSize = COMBOBOXINFO.sizeof; - if (((style & SWT.SIMPLE) == 0) && !OS.IsWinCE && OS.GetComboBoxInfo (handle, pcbi)) { - width += pcbi.itemLeft + (pcbi.buttonRight - pcbi.buttonLeft); - height = (pcbi.buttonBottom - pcbi.buttonTop) + pcbi.buttonTop * 2; - } else { - int border = OS.GetSystemMetrics (OS.SM_CXEDGE); - width += OS.GetSystemMetrics (OS.SM_CXVSCROLL) + border * 2; - int textHeight = (int)/*64*/OS.SendMessage (handle, OS.CB_GETITEMHEIGHT, -1, 0); - if ((style & SWT.DROP_DOWN) != 0) { - height = textHeight + 6; - } else { - height += textHeight + 10; - } - } - if ((style & SWT.SIMPLE) != 0 && (style & SWT.H_SCROLL) != 0) { - height += OS.GetSystemMetrics (OS.SM_CYHSCROLL); - } - return new Point (width, height); -} - -/** - * Copies the selected text. - * <p> - * The current selection is copied to the clipboard. - * </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> - * - * @since 2.1 - */ -public void copy () { - checkWidget (); - OS.SendMessage (handle, OS.WM_COPY, 0, 0); -} - -void createHandle () { - /* - * Feature in Windows. When the selection changes in a combo box, - * Windows draws the selection, even when the combo box does not - * have focus. Strictly speaking, this is the correct Windows - * behavior because the combo box sets ES_NOHIDESEL on the text - * control that it creates. Despite this, it looks strange because - * Windows also clears the selection and selects all the text when - * the combo box gets focus. The fix is use the CBT hook to clear - * the ES_NOHIDESEL style bit when the text control is created. - */ - if (OS.IsWinCE || (style & (SWT.READ_ONLY | SWT.SIMPLE)) != 0) { - super.createHandle (); - } else { - int threadId = OS.GetCurrentThreadId (); - Callback cbtCallback = new Callback (this, "CBTProc", 3); //$NON-NLS-1$ - int /*long*/ cbtProc = cbtCallback.getAddress (); - if (cbtProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS); - cbtHook = OS.SetWindowsHookEx (OS.WH_CBT, cbtProc, 0, threadId); - super.createHandle (); - if (cbtHook != 0) OS.UnhookWindowsHookEx (cbtHook); - cbtHook = 0; - cbtCallback.dispose (); - } - state &= ~(CANVAS | THEME_BACKGROUND); - - /* Get the text and list window procs */ - int /*long*/ hwndText = OS.GetDlgItem (handle, CBID_EDIT); - if (hwndText != 0 && EditProc == 0) { - EditProc = OS.GetWindowLongPtr (hwndText, OS.GWLP_WNDPROC); - } - int /*long*/ hwndList = OS.GetDlgItem (handle, CBID_LIST); - if (hwndList != 0 && ListProc == 0) { - ListProc = OS.GetWindowLongPtr (hwndList, OS.GWLP_WNDPROC); - } - - /* - * Bug in Windows. If the combo box has the CBS_SIMPLE style, - * the list portion of the combo box is not drawn correctly the - * first time, causing pixel corruption. The fix is to ensure - * that the combo box has been resized more than once. - */ - if ((style & SWT.SIMPLE) != 0) { - int flags = OS.SWP_NOZORDER | OS.SWP_DRAWFRAME | OS.SWP_NOACTIVATE; - SetWindowPos (handle, 0, 0, 0, 0x3FFF, 0x3FFF, flags); - SetWindowPos (handle, 0, 0, 0, 0, 0, flags); - } -} - -/** - * Cuts the selected text. - * <p> - * The current selection is first copied to the - * clipboard and then deleted from the widget. - * </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> - * - * @since 2.1 - */ -public void cut () { - checkWidget (); - if ((style & SWT.READ_ONLY) != 0) return; - OS.SendMessage (handle, OS.WM_CUT, 0, 0); -} - -int defaultBackground () { - return OS.GetSysColor (OS.COLOR_WINDOW); -} - -void deregister () { - super.deregister (); - int /*long*/ hwndText = OS.GetDlgItem (handle, CBID_EDIT); - if (hwndText != 0) display.removeControl (hwndText); - int /*long*/ hwndList = OS.GetDlgItem (handle, CBID_LIST); - if (hwndList != 0) display.removeControl (hwndList); -} - -/** - * Deselects the item at the given zero-relative index in the receiver's - * list. If the item at the index was already deselected, it remains - * deselected. Indices that are out of range are ignored. - * - * @param index the index of the item to deselect - * - * @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 deselect (int index) { - checkWidget (); - int selection = (int)/*64*/OS.SendMessage (handle, OS.CB_GETCURSEL, 0, 0); - if (index != selection) return; - OS.SendMessage (handle, OS.CB_SETCURSEL, -1, 0); - sendEvent (SWT.Modify); - // widget could be disposed at this point -} - -/** - * Deselects all selected items in the receiver's list. - * <p> - * Note: To clear the selection in the receiver's text field, - * use <code>clearSelection()</code>. - * </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 #clearSelection - */ -public void deselectAll () { - checkWidget (); - OS.SendMessage (handle, OS.CB_SETCURSEL, -1, 0); - sendEvent (SWT.Modify); - // widget could be disposed at this point -} - -boolean dragDetect (int /*long*/ hwnd, int x, int y, boolean filter, boolean [] detect, boolean [] consume) { - if (filter && (style & SWT.READ_ONLY) == 0) { - int /*long*/ hwndText = OS.GetDlgItem (handle, CBID_EDIT); - if (hwndText != 0) { - int [] start = new int [1], end = new int [1]; - OS.SendMessage (handle, OS.CB_GETEDITSEL, start, end); - if (start [0] != end [0]) { - int /*long*/ lParam = OS.MAKELPARAM (x, y); - int position = OS.LOWORD (OS.SendMessage (hwndText, OS.EM_CHARFROMPOS, 0, lParam)); - if (start [0] <= position && position < end [0]) { - if (super.dragDetect (hwnd, x, y, filter, detect, consume)) { - if (consume != null) consume [0] = true; - return true; - } - } - } - return false; - } - } - return super.dragDetect (hwnd, x, y, filter, detect, consume); -} - -/** - * Returns the item at the given, zero-relative index in the - * receiver's list. Throws an exception if the index is out - * of range. - * - * @param index the index of the item to return - * @return the item at the given index - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</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 String getItem (int index) { - checkWidget (); - int length = (int)/*64*/OS.SendMessage (handle, OS.CB_GETLBTEXTLEN, index, 0); - if (length != OS.CB_ERR) { - TCHAR buffer = new TCHAR (getCodePage (), length + 1); - int result = (int)/*64*/OS.SendMessage (handle, OS.CB_GETLBTEXT, index, buffer); - if (result != OS.CB_ERR) return buffer.toString (0, length); - } - int count = (int)/*64*/OS.SendMessage (handle, OS.CB_GETCOUNT, 0, 0); - if (0 <= index && index < count) error (SWT.ERROR_CANNOT_GET_ITEM); - error (SWT.ERROR_INVALID_RANGE); - return ""; -} - -/** - * Returns the number of items contained in the receiver's list. - * - * @return the number of items - * - * @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 getItemCount () { - checkWidget (); - int count = (int)/*64*/OS.SendMessage (handle, OS.CB_GETCOUNT, 0, 0); - if (count == OS.CB_ERR) error (SWT.ERROR_CANNOT_GET_COUNT); - return count; -} - -/** - * Returns the height of the area which would be used to - * display <em>one</em> of the items in the receiver's list. - * - * @return the height of one item - * - * @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 getItemHeight () { - checkWidget (); - int result = (int)/*64*/OS.SendMessage (handle, OS.CB_GETITEMHEIGHT, 0, 0); - if (result == OS.CB_ERR) error (SWT.ERROR_CANNOT_GET_ITEM_HEIGHT); - return result; -} - -/** - * Returns a (possibly empty) array of <code>String</code>s which are - * the items in the receiver's list. - * <p> - * Note: This is not the actual structure used by the receiver - * to maintain its list of items, so modifying the array will - * not affect the receiver. - * </p> - * - * @return the items in the receiver's list - * - * @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 [] getItems () { - checkWidget (); - int count = getItemCount (); - String [] result = new String [count]; - for (int i=0; i<count; i++) result [i] = getItem (i); - return result; -} - -/** - * Returns <code>true</code> if the receiver's list 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 list'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> - * - * @since 3.4 - */ -public boolean getListVisible () { - checkWidget (); - if ((style & SWT.DROP_DOWN) != 0) { - return OS.SendMessage (handle, OS.CB_GETDROPPEDSTATE, 0, 0) != 0; - } - return true; -} - -String getNameText () { - return getText (); -} - -/** - * Marks the receiver's list 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> - * - * @since 3.4 - */ -public void setListVisible (boolean visible) { - checkWidget (); - OS.SendMessage (handle, OS.CB_SHOWDROPDOWN, visible ? 1 : 0, 0); -} - -/** - * Returns the orientation of the receiver. - * - * @return the orientation style - * - * @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 2.1.2 - */ -public int getOrientation () { - checkWidget(); - return style & (SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT); -} - -/** - * Returns a <code>Point</code> whose x coordinate is the - * character position representing the start of the selection - * in the receiver's text field, and whose y coordinate is the - * character position representing the end of the selection. - * An "empty" selection is indicated by the x and y coordinates - * having the same value. - * <p> - * Indexing is zero based. The range of a selection is from - * 0..N where N is the number of characters in the widget. - * </p> - * - * @return a point representing the selection start and end - * - * @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 getSelection () { - checkWidget (); - if ((style & SWT.DROP_DOWN) != 0 && (style & SWT.READ_ONLY) != 0) { - return new Point (0, OS.GetWindowTextLength (handle)); - } - int [] start = new int [1], end = new int [1]; - OS.SendMessage (handle, OS.CB_GETEDITSEL, start, end); - if (!OS.IsUnicode && OS.IsDBLocale) { - start [0] = mbcsToWcsPos (start [0]); - end [0] = mbcsToWcsPos (end [0]); - } - return new Point (start [0], end [0]); -} - -/** - * Returns the zero-relative index of the item which is currently - * selected in the receiver's list, or -1 if no item is selected. - * - * @return the index of the selected item - * - * @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 getSelectionIndex () { - checkWidget (); - if (noSelection) return -1; - return (int)/*64*/OS.SendMessage (handle, OS.CB_GETCURSEL, 0, 0); -} - -/** - * Returns a string containing a copy of the contents of the - * receiver's text field, or an empty string if there are no - * contents. - * - * @return the receiver's 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 getText () { - checkWidget (); - int length = OS.GetWindowTextLength (handle); - if (length == 0) return ""; - TCHAR buffer = new TCHAR (getCodePage (), length + 1); - OS.GetWindowText (handle, buffer, length + 1); - return buffer.toString (0, length); -} - -/** - * Returns the height of the receivers's text field. - * - * @return the text height - * - * @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 getTextHeight () { - checkWidget (); - COMBOBOXINFO pcbi = new COMBOBOXINFO (); - pcbi.cbSize = COMBOBOXINFO.sizeof; - if (((style & SWT.SIMPLE) == 0) && !OS.IsWinCE && OS.GetComboBoxInfo (handle, pcbi)) { - return (pcbi.buttonBottom - pcbi.buttonTop) + pcbi.buttonTop * 2; - } - int result = (int)/*64*/OS.SendMessage (handle, OS.CB_GETITEMHEIGHT, -1, 0); - if (result == OS.CB_ERR) error (SWT.ERROR_CANNOT_GET_ITEM_HEIGHT); - return (style & SWT.DROP_DOWN) != 0 ? result + 6 : result + 10; -} - -/** - * Returns the maximum number of characters that the receiver's - * text field is capable of holding. If this has not been changed - * by <code>setTextLimit()</code>, it will be the constant - * <code>Combo.LIMIT</code>. - * - * @return the text limit - * - * @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 #LIMIT - */ -public int getTextLimit () { - checkWidget (); - int /*long*/ hwndText = OS.GetDlgItem (handle, CBID_EDIT); - if (hwndText == 0) return LIMIT; - return (int)/*64*/OS.SendMessage (hwndText, OS.EM_GETLIMITTEXT, 0, 0) & 0x7FFFFFFF; -} - -/** - * Gets the number of items that are visible in the drop - * down portion of the receiver's list. - * <p> - * Note: This operation is a hint and is not supported on - * platforms that do not have this concept. - * </p> - * - * @return the number of items that are visible - * - * @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 3.0 - */ -public int getVisibleItemCount () { - checkWidget (); - return visibleCount; -} - -boolean hasFocus () { - int /*long*/ hwndFocus = OS.GetFocus (); - if (hwndFocus == handle) return true; - if (hwndFocus == 0) return false; - int /*long*/ hwndText = OS.GetDlgItem (handle, CBID_EDIT); - if (hwndFocus == hwndText) return true; - int /*long*/ hwndList = OS.GetDlgItem (handle, CBID_LIST); - if (hwndFocus == hwndList) return true; - return false; -} - -/** - * Searches the receiver's list starting at the first item - * (index 0) until an item is found that is equal to the - * argument, and returns the index of that item. If no item - * is found, returns -1. - * - * @param string the search item - * @return the index of the item - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the string 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 int indexOf (String string) { - return indexOf (string, 0); -} - -/** - * Searches the receiver's list starting at the given, - * zero-relative index until an item is found that is equal - * to the argument, and returns the index of that item. If - * no item is found or the starting index is out of range, - * returns -1. - * - * @param string the search item - * @param start the zero-relative index at which to begin the search - * @return the index of the item - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the string 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 int indexOf (String string, int start) { - checkWidget (); - if (string == null) error (SWT.ERROR_NULL_ARGUMENT); - - /* - * Bug in Windows. For some reason, CB_FINDSTRINGEXACT - * will not find empty strings even though it is legal - * to insert an empty string into a combo. The fix is - * to search the combo, an item at a time. - */ - if (string.length () == 0) { - int count = getItemCount (); - for (int i=start; i<count; i++) { - if (string.equals (getItem (i))) return i; - } - return -1; - } - - /* Use CB_FINDSTRINGEXACT to search for the item */ - int count = (int)/*64*/OS.SendMessage (handle, OS.CB_GETCOUNT, 0, 0); - if (!(0 <= start && start < count)) return -1; - int index = start - 1, last = 0; - TCHAR buffer = new TCHAR (getCodePage (), string, true); - do { - index = (int)/*64*/OS.SendMessage (handle, OS.CB_FINDSTRINGEXACT, last = index, buffer); - if (index == OS.CB_ERR || index <= last) return -1; - } while (!string.equals (getItem (index))); - return index; -} - -int mbcsToWcsPos (int mbcsPos) { - if (mbcsPos <= 0) return 0; - if (OS.IsUnicode) return mbcsPos; - int /*long*/ hwndText = OS.GetDlgItem (handle, CBID_EDIT); - if (hwndText == 0) return mbcsPos; - int mbcsSize = OS.GetWindowTextLengthA (hwndText); - if (mbcsSize == 0) return 0; - if (mbcsPos >= mbcsSize) return mbcsSize; - byte [] buffer = new byte [mbcsSize + 1]; - OS.GetWindowTextA (hwndText, buffer, mbcsSize + 1); - return OS.MultiByteToWideChar (getCodePage (), OS.MB_PRECOMPOSED, buffer, mbcsPos, null, 0); -} - -/** - * Pastes text from clipboard. - * <p> - * The selected text is deleted from the widget - * and new text inserted from the clipboard. - * </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> - * - * @since 2.1 - */ -public void paste () { - checkWidget (); - if ((style & SWT.READ_ONLY) != 0) return; - OS.SendMessage (handle, OS.WM_PASTE, 0, 0); -} - -void register () { - super.register (); - int /*long*/ hwndText = OS.GetDlgItem (handle, CBID_EDIT); - if (hwndText != 0) display.addControl (hwndText, this); - int /*long*/ hwndList = OS.GetDlgItem (handle, CBID_LIST); - if (hwndList != 0) display.addControl (hwndList, this); -} - -/** - * Removes the item from the receiver's list at the given - * zero-relative index. - * - * @param index the index for the item - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</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 remove (int index) { - checkWidget (); - remove (index, true); -} - -void remove (int index, boolean notify) { - TCHAR buffer = null; - if ((style & SWT.H_SCROLL) != 0) { - int length = (int)/*64*/OS.SendMessage (handle, OS.CB_GETLBTEXTLEN, index, 0); - if (length == OS.CB_ERR) { - int count = (int)/*64*/OS.SendMessage (handle, OS.CB_GETCOUNT, 0, 0); - if (0 <= index && index < count) error (SWT.ERROR_ITEM_NOT_REMOVED); - error (SWT.ERROR_INVALID_RANGE); - } - buffer = new TCHAR (getCodePage (), length + 1); - int result = (int)/*64*/OS.SendMessage (handle, OS.CB_GETLBTEXT, index, buffer); - if (result == OS.CB_ERR) { - int count = (int)/*64*/OS.SendMessage (handle, OS.CB_GETCOUNT, 0, 0); - if (0 <= index && index < count) error (SWT.ERROR_ITEM_NOT_REMOVED); - error (SWT.ERROR_INVALID_RANGE); - } - } - int length = OS.GetWindowTextLength (handle); - int code = (int)/*64*/OS.SendMessage (handle, OS.CB_DELETESTRING, index, 0); - if (code == OS.CB_ERR) { - int count = (int)/*64*/OS.SendMessage (handle, OS.CB_GETCOUNT, 0, 0); - if (0 <= index && index < count) error (SWT.ERROR_ITEM_NOT_REMOVED); - error (SWT.ERROR_INVALID_RANGE); - } - if ((style & SWT.H_SCROLL) != 0) setScrollWidth (buffer, true); - if (notify && length != OS.GetWindowTextLength (handle)) { - sendEvent (SWT.Modify); - if (isDisposed ()) return; - } - /* - * Bug in Windows. When the combo box is read only - * with exactly one item that is currently selected - * and that item is removed, the combo box does not - * redraw to clear the text area. The fix is to - * force a redraw. - */ - if ((style & SWT.READ_ONLY) != 0) { - int count = (int)/*64*/OS.SendMessage (handle, OS.CB_GETCOUNT, 0, 0); - if (count == 0) OS.InvalidateRect (handle, null, true); - } -} - -/** - * Removes the items from the receiver's list which are - * between the given zero-relative start and end - * indices (inclusive). - * - * @param start the start of the range - * @param end the end of the range - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_INVALID_RANGE - if either the start or end are not between 0 and the number of elements in the list minus 1 (inclusive)</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 remove (int start, int end) { - checkWidget (); - if (start > end) return; - int count = (int)/*64*/OS.SendMessage (handle, OS.CB_GETCOUNT, 0, 0); - if (!(0 <= start && start <= end && end < count)) { - error (SWT.ERROR_INVALID_RANGE); - } - int textLength = OS.GetWindowTextLength (handle); - RECT rect = null; - int /*long*/ hDC = 0, oldFont = 0, newFont = 0; - int newWidth = 0; - if ((style & SWT.H_SCROLL) != 0) { - rect = new RECT (); - hDC = OS.GetDC (handle); - newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); - if (newFont != 0) oldFont = OS.SelectObject (hDC, newFont); - } - int cp = getCodePage (); - int flags = OS.DT_CALCRECT | OS.DT_SINGLELINE | OS.DT_NOPREFIX; - for (int i=start; i<=end; i++) { - TCHAR buffer = null; - if ((style & SWT.H_SCROLL) != 0) { - int length = (int)/*64*/OS.SendMessage (handle, OS.CB_GETLBTEXTLEN, start, 0); - if (length == OS.CB_ERR) break; - buffer = new TCHAR (cp, length + 1); - int result = (int)/*64*/OS.SendMessage (handle, OS.CB_GETLBTEXT, start, buffer); - if (result == OS.CB_ERR) break; - } - int result = (int)/*64*/OS.SendMessage (handle, OS.CB_DELETESTRING, start, 0); - if (result == OS.CB_ERR) error (SWT.ERROR_ITEM_NOT_REMOVED); - if ((style & SWT.H_SCROLL) != 0) { - OS.DrawText (hDC, buffer, -1, rect, flags); - newWidth = Math.max (newWidth, rect.right - rect.left); - } - } - if ((style & SWT.H_SCROLL) != 0) { - if (newFont != 0) OS.SelectObject (hDC, oldFont); - OS.ReleaseDC (handle, hDC); - setScrollWidth (newWidth, false); - } - if (textLength != OS.GetWindowTextLength (handle)) { - sendEvent (SWT.Modify); - if (isDisposed ()) return; - } - /* - * Bug in Windows. When the combo box is read only - * with exactly one item that is currently selected - * and that item is removed, the combo box does not - * redraw to clear the text area. The fix is to - * force a redraw. - */ - if ((style & SWT.READ_ONLY) != 0) { - count = (int)/*64*/OS.SendMessage (handle, OS.CB_GETCOUNT, 0, 0); - if (count == 0) OS.InvalidateRect (handle, null, true); - } -} - -/** - * Searches the receiver's list starting at the first item - * until an item is found that is equal to the argument, - * and removes that item from the list. - * - * @param string the item to remove - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the string is null</li> - * <li>ERROR_INVALID_ARGUMENT - if the string is not found in the list</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 remove (String string) { - checkWidget (); - if (string == null) error (SWT.ERROR_NULL_ARGUMENT); - int index = indexOf (string, 0); - if (index == -1) error (SWT.ERROR_INVALID_ARGUMENT); - remove (index); -} - -/** - * Removes all of the items from the receiver's list and clear the - * contents of receiver's text field. - * <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> - */ -public void removeAll () { - checkWidget (); - OS.SendMessage (handle, OS.CB_RESETCONTENT, 0, 0); - sendEvent (SWT.Modify); - if (isDisposed ()) return; - if ((style & SWT.H_SCROLL) != 0) setScrollWidth (0); -} - -/** - * Removes the listener from the collection of listeners who will - * be notified when the receiver's text is modified. - * - * @param listener the listener which should no longer 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 ModifyListener - * @see #addModifyListener - */ -public void removeModifyListener (ModifyListener listener) { - checkWidget (); - if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); - if (eventTable == null) return; - eventTable.unhook (SWT.Modify, listener); -} - -/** - * Removes the listener from the collection of listeners who will - * be notified when the user changes the receiver's selection. - * - * @param listener the listener which should no longer 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); -} - -/** - * Removes the listener from the collection of listeners who will - * be notified when the control is verified. - * - * @param listener the listener which should no longer 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 VerifyListener - * @see #addVerifyListener - * - * @since 3.1 - */ -public void removeVerifyListener (VerifyListener listener) { - checkWidget (); - if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); - if (eventTable == null) return; - eventTable.unhook (SWT.Verify, listener); -} - -boolean sendKeyEvent (int type, int msg, int /*long*/ wParam, int /*long*/ lParam, Event event) { - if (!super.sendKeyEvent (type, msg, wParam, lParam, event)) { - return false; - } - if ((style & SWT.READ_ONLY) != 0) return true; - if (type != SWT.KeyDown) return true; - if (msg != OS.WM_CHAR && msg != OS.WM_KEYDOWN && msg != OS.WM_IME_CHAR) { - return true; - } - if (event.character == 0) return true; - if (!hooks (SWT.Verify) && !filters (SWT.Verify)) return true; - char key = event.character; - int stateMask = event.stateMask; - - /* - * Disable all magic keys that could modify the text - * and don't send events when Alt, Shift or Ctrl is - * pressed. - */ - switch (msg) { - case OS.WM_CHAR: - if (key != 0x08 && key != 0x7F && key != '\r' && key != '\t' && key != '\n') break; - // FALL THROUGH - case OS.WM_KEYDOWN: - if ((stateMask & (SWT.ALT | SWT.SHIFT | SWT.CONTROL)) != 0) return false; - break; - } - - /* - * If the left button is down, the text widget refuses the character. - */ - if (OS.GetKeyState (OS.VK_LBUTTON) < 0) { - return true; - } - - /* Verify the character */ - String oldText = ""; - int [] start = new int [1], end = new int [1]; - int /*long*/ hwndText = OS.GetDlgItem (handle, CBID_EDIT); - if (hwndText == 0) return true; - OS.SendMessage (hwndText, OS.EM_GETSEL, start, end); - switch (key) { - case 0x08: /* Bs */ - if (start [0] == end [0]) { - if (start [0] == 0) return true; - start [0] = start [0] - 1; - if (!OS.IsUnicode && OS.IsDBLocale) { - int [] newStart = new int [1], newEnd = new int [1]; - OS.SendMessage (hwndText, OS.EM_SETSEL, start [0], end [0]); - OS.SendMessage (hwndText, OS.EM_GETSEL, newStart, newEnd); - if (start [0] != newStart [0]) start [0] = start [0] - 1; - } - start [0] = Math.max (start [0], 0); - } - break; - case 0x7F: /* Del */ - if (start [0] == end [0]) { - int length = OS.GetWindowTextLength (hwndText); - if (start [0] == length) return true; - end [0] = end [0] + 1; - if (!OS.IsUnicode && OS.IsDBLocale) { - int [] newStart = new int [1], newEnd = new int [1]; - OS.SendMessage (hwndText, OS.EM_SETSEL, start [0], end [0]); - OS.SendMessage (hwndText, OS.EM_GETSEL, newStart, newEnd); - if (end [0] != newEnd [0]) end [0] = end [0] + 1; - } - end [0] = Math.min (end [0], length); - } - break; - case '\r': /* Return */ - return true; - default: /* Tab and other characters */ - if (key != '\t' && key < 0x20) return true; - oldText = new String (new char [] {key}); - break; - } - String newText = verifyText (oldText, start [0], end [0], event); - if (newText == null) return false; - if (newText == oldText) return true; - TCHAR buffer = new TCHAR (getCodePage (), newText, true); - OS.SendMessage (hwndText, OS.EM_SETSEL, start [0], end [0]); - OS.SendMessage (hwndText, OS.EM_REPLACESEL, 0, buffer); - return false; -} - -/** - * Selects the item at the given zero-relative index in the receiver's - * list. If the item at the index was already selected, it remains - * selected. Indices that are out of range are ignored. - * - * @param index the index of the item to select - * - * @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 select (int index) { - checkWidget (); - int count = (int)/*64*/OS.SendMessage (handle, OS.CB_GETCOUNT, 0, 0); - if (0 <= index && index < count) { - int selection = (int)/*64*/OS.SendMessage (handle, OS.CB_GETCURSEL, 0, 0); - int code = (int)/*64*/OS.SendMessage (handle, OS.CB_SETCURSEL, index, 0); - if (code != OS.CB_ERR && code != selection) { - sendEvent (SWT.Modify); - // widget could be disposed at this point - } - } -} - -void setBackgroundImage (int /*long*/ hBitmap) { - super.setBackgroundImage (hBitmap); - int /*long*/ hwndText = OS.GetDlgItem (handle, CBID_EDIT); - if (hwndText != 0) OS.InvalidateRect (hwndText, null, true); - int /*long*/ hwndList = OS.GetDlgItem (handle, CBID_LIST); - if (hwndList != 0) OS.InvalidateRect (hwndList, null, true); -} - -void setBackgroundPixel (int pixel) { - super.setBackgroundPixel (pixel); - int /*long*/ hwndText = OS.GetDlgItem (handle, CBID_EDIT); - if (hwndText != 0) OS.InvalidateRect (hwndText, null, true); - int /*long*/ hwndList = OS.GetDlgItem (handle, CBID_LIST); - if (hwndList != 0) OS.InvalidateRect (hwndList, null, true); -} - -void setBounds (int x, int y, int width, int height, int flags) { - /* - * Feature in Windows. If the combo box has the CBS_DROPDOWN - * or CBS_DROPDOWNLIST style, Windows uses the height that the - * programmer sets in SetWindowPos () to control height of the - * drop down list. When the width is non-zero, Windows remembers - * this value and sets the height to be the height of the text - * field part of the combo box. If the width is zero, Windows - * allows the height to have any value. Therefore, when the - * programmer sets and then queries the height, the values can - * be different depending on the width. The problem occurs when - * the programmer uses computeSize () to determine the preferred - * height (always the height of the text field) and then uses - * this value to set the height of the combo box. The result - * is a combo box with a zero size drop down list. The fix, is - * to always set the height to show a fixed number of combo box - * items and ignore the height value that the programmer supplies. - */ - if ((style & SWT.DROP_DOWN) != 0) { - height = getTextHeight () + (getItemHeight () * visibleCount) + 2; - /* - * Feature in Windows. When a drop down combo box is resized, - * the combo box resizes the height of the text field and uses - * the height provided in SetWindowPos () to determine the height - * of the drop down list. For some reason, the combo box redraws - * the whole area, not just the text field. The fix is to set the - * SWP_NOSIZE bits when the height of text field and the drop down - * list is the same as the requested height. - * - * NOTE: Setting the width of a combo box to zero does not update - * the width of the drop down control rect. If the width of the - * combo box is zero, then do not set SWP_NOSIZE. - */ - RECT rect = new RECT (); - OS.GetWindowRect (handle, rect); - if (rect.right - rect.left != 0) { - if (OS.SendMessage (handle, OS.CB_GETDROPPEDCONTROLRECT, 0, rect) != 0) { - int oldWidth = rect.right - rect.left, oldHeight = rect.bottom - rect.top; - if (oldWidth == width && oldHeight == height) flags |= OS.SWP_NOSIZE; - } - } - SetWindowPos (handle, 0, x, y, width, height, flags); - } else { - super.setBounds (x, y, width, height, flags); - } -} - -public void setFont (Font font) { - checkWidget (); - super.setFont (font); - if ((style & SWT.H_SCROLL) != 0) setScrollWidth (); -} - -void setForegroundPixel (int pixel) { - super.setForegroundPixel (pixel); - int /*long*/ hwndText = OS.GetDlgItem (handle, CBID_EDIT); - if (hwndText != 0) OS.InvalidateRect (hwndText, null, true); - int /*long*/ hwndList = OS.GetDlgItem (handle, CBID_LIST); - if (hwndList != 0) OS.InvalidateRect (hwndList, null, true); -} - -/** - * Sets the text of the item in the receiver's list at the given - * zero-relative index to the string argument. - * - * @param index the index for the item - * @param string the new text for the item - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> - * <li>ERROR_NULL_ARGUMENT - if the string 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 setItem (int index, String string) { - checkWidget (); - if (string == null) error (SWT.ERROR_NULL_ARGUMENT); - int selection = getSelectionIndex (); - remove (index, false); - if (isDisposed ()) return; - add (string, index); - if (selection != -1) select (selection); -} - -/** - * Sets the receiver's list to be the given array of items. - * - * @param items the array of items - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the items array is null</li> - * <li>ERROR_INVALID_ARGUMENT - if an item in the items array 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 setItems (String [] items) { - checkWidget (); - if (items == null) error (SWT.ERROR_NULL_ARGUMENT); - for (int i=0; i<items.length; i++) { - if (items [i] == null) error (SWT.ERROR_INVALID_ARGUMENT); - } - RECT rect = null; - int /*long*/ hDC = 0, oldFont = 0, newFont = 0; - int newWidth = 0; - if ((style & SWT.H_SCROLL) != 0) { - rect = new RECT (); - hDC = OS.GetDC (handle); - newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); - if (newFont != 0) oldFont = OS.SelectObject (hDC, newFont); - setScrollWidth (0); - } - OS.SendMessage (handle, OS.CB_RESETCONTENT, 0, 0); - int codePage = getCodePage (); - for (int i=0; i<items.length; i++) { - String string = items [i]; - TCHAR buffer = new TCHAR (codePage, string, true); - int code = (int)/*64*/OS.SendMessage (handle, OS.CB_ADDSTRING, 0, buffer); - if (code == OS.CB_ERR) error (SWT.ERROR_ITEM_NOT_ADDED); - if (code == OS.CB_ERRSPACE) error (SWT.ERROR_ITEM_NOT_ADDED); - if ((style & SWT.H_SCROLL) != 0) { - int flags = OS.DT_CALCRECT | OS.DT_SINGLELINE | OS.DT_NOPREFIX; - OS.DrawText (hDC, buffer, -1, rect, flags); - newWidth = Math.max (newWidth, rect.right - rect.left); - } - } - if ((style & SWT.H_SCROLL) != 0) { - if (newFont != 0) OS.SelectObject (hDC, oldFont); - OS.ReleaseDC (handle, hDC); - setScrollWidth (newWidth + 3); - } - sendEvent (SWT.Modify); - // widget could be disposed at this point -} - -/** - * Sets the orientation of the receiver, which must be one - * of the constants <code>SWT.LEFT_TO_RIGHT</code> or <code>SWT.RIGHT_TO_LEFT</code>. - * <p> - * - * @param orientation new orientation style - * - * @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 2.1.2 - */ -public void setOrientation (int orientation) { - checkWidget(); - if (OS.IsWinCE) return; - if (OS.WIN32_VERSION < OS.VERSION (4, 10)) return; - int flags = SWT.RIGHT_TO_LEFT | SWT.LEFT_TO_RIGHT; - if ((orientation & flags) == 0 || (orientation & flags) == flags) return; - style &= ~flags; - style |= orientation & flags; - int bits = OS.GetWindowLong (handle, OS.GWL_EXSTYLE); - if ((style & SWT.RIGHT_TO_LEFT) != 0) { - style |= SWT.MIRRORED; - bits |= OS.WS_EX_LAYOUTRTL; - } else { - style &= ~SWT.MIRRORED; - bits &= ~OS.WS_EX_LAYOUTRTL; - } - OS.SetWindowLong (handle, OS.GWL_EXSTYLE, bits); - int /*long*/ hwndText = 0, hwndList = 0; - COMBOBOXINFO pcbi = new COMBOBOXINFO (); - pcbi.cbSize = COMBOBOXINFO.sizeof; - if (OS.GetComboBoxInfo (handle, pcbi)) { - hwndText = pcbi.hwndItem; - hwndList = pcbi.hwndList; - } - if (hwndText != 0) { - int bits1 = OS.GetWindowLong (hwndText, OS.GWL_EXSTYLE); - int bits2 = OS.GetWindowLong (hwndText, OS.GWL_STYLE); - if ((style & SWT.RIGHT_TO_LEFT) != 0) { - bits1 |= OS.WS_EX_RIGHT | OS.WS_EX_RTLREADING; - bits2 |= OS.ES_RIGHT; - } else { - bits1 &= ~(OS.WS_EX_RIGHT | OS.WS_EX_RTLREADING); - bits2 &= ~OS.ES_RIGHT; - } - OS.SetWindowLong (hwndText, OS.GWL_EXSTYLE, bits1); - OS.SetWindowLong (hwndText, OS.GWL_STYLE, bits2); - - /* - * Bug in Windows. For some reason, the single line text field - * portion of the combo box does not redraw to reflect the new - * style bits. The fix is to force the widget to be resized by - * temporarily shrinking and then growing the width and height. - */ - RECT rect = new RECT (); - OS.GetWindowRect (hwndText, rect); - int width = rect.right - rect.left, height = rect.bottom - rect.top; - OS.GetWindowRect (handle, rect); - int widthCombo = rect.right - rect.left, heightCombo = rect.bottom - rect.top; - int uFlags = OS.SWP_NOMOVE | OS.SWP_NOZORDER | OS.SWP_NOACTIVATE; - SetWindowPos (hwndText, 0, 0, 0, width - 1, height - 1, uFlags); - SetWindowPos (handle, 0, 0, 0, widthCombo - 1, heightCombo - 1, uFlags); - SetWindowPos (hwndText, 0, 0, 0, width, height, uFlags); - SetWindowPos (handle, 0, 0, 0, widthCombo, heightCombo, uFlags); - OS.InvalidateRect (handle, null, true); - } - if (hwndList != 0) { - int bits1 = OS.GetWindowLong (hwndList, OS.GWL_EXSTYLE); - if ((style & SWT.RIGHT_TO_LEFT) != 0) { - bits1 |= OS.WS_EX_LAYOUTRTL; - } else { - bits1 &= ~OS.WS_EX_LAYOUTRTL; - } - OS.SetWindowLong (hwndList, OS.GWL_EXSTYLE, bits1); - } -} - -void setScrollWidth () { - int newWidth = 0; - RECT rect = new RECT (); - int /*long*/ newFont, oldFont = 0; - int /*long*/ hDC = OS.GetDC (handle); - newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); - if (newFont != 0) oldFont = OS.SelectObject (hDC, newFont); - int cp = getCodePage (); - int count = (int)/*64*/OS.SendMessage (handle, OS.CB_GETCOUNT, 0, 0); - int flags = OS.DT_CALCRECT | OS.DT_SINGLELINE | OS.DT_NOPREFIX; - for (int i=0; i<count; i++) { - int length = (int)/*64*/OS.SendMessage (handle, OS.CB_GETLBTEXTLEN, i, 0); - if (length != OS.CB_ERR) { - TCHAR buffer = new TCHAR (cp, length + 1); - int result = (int)/*64*/OS.SendMessage (handle, OS.CB_GETLBTEXT, i, buffer); - if (result != OS.CB_ERR) { - OS.DrawText (hDC, buffer, -1, rect, flags); - newWidth = Math.max (newWidth, rect.right - rect.left); - } - } - } - if (newFont != 0) OS.SelectObject (hDC, oldFont); - OS.ReleaseDC (handle, hDC); - setScrollWidth (newWidth + 3); -} - -void setScrollWidth (int scrollWidth) { - this.scrollWidth = scrollWidth; - if ((style & SWT.SIMPLE) != 0) { - OS.SendMessage (handle, OS.CB_SETHORIZONTALEXTENT, scrollWidth, 0); - return; - } - boolean scroll = false; - int count = (int)/*64*/OS.SendMessage (handle, OS.CB_GETCOUNT, 0, 0); - if (count > 3) { - int maxWidth = 0; - if (OS.IsWinCE || OS.WIN32_VERSION < OS.VERSION (4, 10)) { - RECT rect = new RECT (); - OS.SystemParametersInfo (OS.SPI_GETWORKAREA, 0, rect, 0); - maxWidth = (rect.right - rect.left) / 4; - } else { - int /*long*/ hmonitor = OS.MonitorFromWindow (handle, OS.MONITOR_DEFAULTTONEAREST); - MONITORINFO lpmi = new MONITORINFO (); - lpmi.cbSize = MONITORINFO.sizeof; - OS.GetMonitorInfo (hmonitor, lpmi); - maxWidth = (lpmi.rcWork_right - lpmi.rcWork_left) / 4; - } - scroll = scrollWidth > maxWidth; - } - /* - * Feature in Windows. For some reason, in a editable combo box, - * when CB_SETDROPPEDWIDTH is used to set the width of the drop - * down list and the current text does not match an item in the - * list, Windows selects the item that most closely matches the - * contents of the combo. The fix is to lock the current text - * by ignoring all WM_SETTEXT messages during processing of - * CB_SETDROPPEDWIDTH. - */ - if ((style & SWT.READ_ONLY) == 0) lockText = true; - if (scroll) { - OS.SendMessage (handle, OS.CB_SETDROPPEDWIDTH, 0, 0); - OS.SendMessage (handle, OS.CB_SETHORIZONTALEXTENT, scrollWidth, 0); - } else { - scrollWidth += OS.GetSystemMetrics (OS.SM_CYHSCROLL); - OS.SendMessage (handle, OS.CB_SETDROPPEDWIDTH, scrollWidth, 0); - OS.SendMessage (handle, OS.CB_SETHORIZONTALEXTENT, 0, 0); - } - if ((style & SWT.READ_ONLY) == 0) lockText = false; -} - -void setScrollWidth (TCHAR buffer, boolean grow) { - RECT rect = new RECT (); - int /*long*/ newFont, oldFont = 0; - int /*long*/ hDC = OS.GetDC (handle); - newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); - if (newFont != 0) oldFont = OS.SelectObject (hDC, newFont); - int flags = OS.DT_CALCRECT | OS.DT_SINGLELINE | OS.DT_NOPREFIX; - OS.DrawText (hDC, buffer, -1, rect, flags); - if (newFont != 0) OS.SelectObject (hDC, oldFont); - OS.ReleaseDC (handle, hDC); - setScrollWidth (rect.right - rect.left, grow); -} - -void setScrollWidth (int newWidth, boolean grow) { - if (grow) { - if (newWidth <= scrollWidth) return; - setScrollWidth (newWidth + 3); - } else { - if (newWidth < scrollWidth) return; - setScrollWidth (); - } -} - -/** - * Sets the selection in the receiver's text field to the - * range specified by the argument whose x coordinate is the - * start of the selection and whose y coordinate is the end - * of the selection. - * - * @param selection a point representing the new selection start and end - * - * @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 setSelection (Point selection) { - checkWidget (); - if (selection == null) error (SWT.ERROR_NULL_ARGUMENT); - int start = selection.x, end = selection.y; - if (!OS.IsUnicode && OS.IsDBLocale) { - start = wcsToMbcsPos (start); - end = wcsToMbcsPos (end); - } - int /*long*/ bits = OS.MAKELPARAM (start, end); - OS.SendMessage (handle, OS.CB_SETEDITSEL, 0, bits); -} - -/** - * Sets the contents of the receiver's text field to the - * given string. - * <p> - * This call is ignored when the receiver is read only and - * the given string is not in the receiver's list. - * </p> - * <p> - * Note: The text field in a <code>Combo</code> is typically - * only capable of displaying a single line of text. Thus, - * setting the text to a string containing line breaks or - * other special characters will probably cause it to - * display incorrectly. - * </p> - * - * @param string the new text - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the string 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 setText (String string) { - checkWidget (); - if (string == null) error (SWT.ERROR_NULL_ARGUMENT); - if ((style & SWT.READ_ONLY) != 0) { - int index = indexOf (string); - if (index != -1) select (index); - return; - } - int limit = LIMIT; - int /*long*/ hwndText = OS.GetDlgItem (handle, CBID_EDIT); - if (hwndText != 0) { - limit = (int)/*64*/OS.SendMessage (hwndText, OS.EM_GETLIMITTEXT, 0, 0) & 0x7FFFFFFF; - } - if (string.length () > limit) string = string.substring (0, limit); - TCHAR buffer = new TCHAR (getCodePage (), string, true); - if (OS.SetWindowText (handle, buffer)) { - sendEvent (SWT.Modify); - // widget could be disposed at this point - } -} - -/** - * Sets the maximum number of characters that the receiver's - * text field is capable of holding to be the argument. - * <p> - * To reset this value to the default, use <code>setTextLimit(Combo.LIMIT)</code>. - * Specifying a limit value larger than <code>Combo.LIMIT</code> sets the - * receiver's limit to <code>Combo.LIMIT</code>. - * </p> - * @param limit new text limit - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_CANNOT_BE_ZERO - if the limit is zero</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 #LIMIT - */ -public void setTextLimit (int limit) { - checkWidget (); - if (limit == 0) error (SWT.ERROR_CANNOT_BE_ZERO); - OS.SendMessage (handle, OS.CB_LIMITTEXT, limit, 0); -} - -void setToolTipText (Shell shell, String string) { - int /*long*/ hwndText = OS.GetDlgItem (handle, CBID_EDIT); - int /*long*/ hwndList = OS.GetDlgItem (handle, CBID_LIST); - if (hwndText != 0) shell.setToolTipText (hwndText, string); - if (hwndList != 0) shell.setToolTipText (hwndList, string); - shell.setToolTipText (handle, string); -} - -/** - * Sets the number of items that are visible in the drop - * down portion of the receiver's list. - * <p> - * Note: This operation is a hint and is not supported on - * platforms that do not have this concept. - * </p> - * - * @param count the new number of items to be visible - * - * @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 3.0 - */ -public void setVisibleItemCount (int count) { - checkWidget (); - if (count < 0) return; - visibleCount = count; - if ((style & SWT.DROP_DOWN) != 0) { - forceResize (); - RECT rect = new RECT (); - OS.GetWindowRect (handle, rect); - int flags = OS.SWP_NOMOVE | OS.SWP_NOZORDER | OS.SWP_DRAWFRAME | OS.SWP_NOACTIVATE; - setBounds (0, 0, rect.right - rect.left, rect.bottom - rect.top, flags); - } -} - -void subclass () { - super.subclass (); - int /*long*/ newProc = display.windowProc; - int /*long*/ hwndText = OS.GetDlgItem (handle, CBID_EDIT); - if (hwndText != 0) { - OS.SetWindowLongPtr (hwndText, OS.GWLP_WNDPROC, newProc); - } - int /*long*/ hwndList = OS.GetDlgItem (handle, CBID_LIST); - if (hwndList != 0) { - OS.SetWindowLongPtr (hwndList, OS.GWLP_WNDPROC, newProc); - } -} - -boolean translateTraversal (MSG msg) { - /* - * When the combo box is dropped down, allow return - * to select an item in the list and escape to close - * the combo box. - */ - switch ((int)/*64*/(msg.wParam)) { - case OS.VK_RETURN: - case OS.VK_ESCAPE: - if ((style & SWT.DROP_DOWN) != 0) { - if (OS.SendMessage (handle, OS.CB_GETDROPPEDSTATE, 0, 0) != 0) { - return false; - } - } - } - return super.translateTraversal (msg); -} - -boolean traverseEscape () { - if ((style & SWT.DROP_DOWN) != 0) { - if (OS.SendMessage (handle, OS.CB_GETDROPPEDSTATE, 0, 0) != 0) { - OS.SendMessage (handle, OS.CB_SHOWDROPDOWN, 0, 0); - return true; - } - } - return super.traverseEscape (); -} - -boolean traverseReturn () { - if ((style & SWT.DROP_DOWN) != 0) { - if (OS.SendMessage (handle, OS.CB_GETDROPPEDSTATE, 0, 0) != 0) { - OS.SendMessage (handle, OS.CB_SHOWDROPDOWN, 0, 0); - return true; - } - } - return super.traverseReturn (); -} - -void unsubclass () { - super.unsubclass (); - int /*long*/ hwndText = OS.GetDlgItem (handle, CBID_EDIT); - if (hwndText != 0 && EditProc != 0) { - OS.SetWindowLongPtr (hwndText, OS.GWLP_WNDPROC, EditProc); - } - int /*long*/ hwndList = OS.GetDlgItem (handle, CBID_LIST); - if (hwndList != 0 && ListProc != 0) { - OS.SetWindowLongPtr (hwndList, OS.GWLP_WNDPROC, ListProc); - } -} - -String verifyText (String string, int start, int end, Event keyEvent) { - Event event = new Event (); - event.text = string; - event.start = start; - event.end = end; - if (keyEvent != null) { - event.character = keyEvent.character; - event.keyCode = keyEvent.keyCode; - event.stateMask = keyEvent.stateMask; - } - if (!OS.IsUnicode && OS.IsDBLocale) { - event.start = mbcsToWcsPos (start); - event.end = mbcsToWcsPos (end); - } - /* - * It is possible (but unlikely), that application - * code could have disposed the widget in the verify - * event. If this happens, answer null to cancel - * the operation. - */ - sendEvent (SWT.Verify, event); - if (!event.doit || isDisposed ()) return null; - return event.text; -} - -int wcsToMbcsPos (int wcsPos) { - if (wcsPos <= 0) return 0; - if (OS.IsUnicode) return wcsPos; - int /*long*/ hwndText = OS.GetDlgItem (handle, CBID_EDIT); - if (hwndText == 0) return wcsPos; - int mbcsSize = OS.GetWindowTextLengthA (hwndText); - if (mbcsSize == 0) return 0; - byte [] buffer = new byte [mbcsSize + 1]; - OS.GetWindowTextA (hwndText, buffer, mbcsSize + 1); - int mbcsPos = 0, wcsCount = 0; - while (mbcsPos < mbcsSize) { - if (wcsPos == wcsCount) break; - if (OS.IsDBCSLeadByte (buffer [mbcsPos++])) mbcsPos++; - wcsCount++; - } - return mbcsPos; -} - -int widgetExtStyle () { - return super.widgetExtStyle () & ~OS.WS_EX_NOINHERITLAYOUT; -} - -int widgetStyle () { - int bits = super.widgetStyle () | OS.CBS_AUTOHSCROLL | OS.CBS_NOINTEGRALHEIGHT | OS.WS_HSCROLL |OS.WS_VSCROLL; - if ((style & SWT.SIMPLE) != 0) return bits | OS.CBS_SIMPLE; - if ((style & SWT.READ_ONLY) != 0) return bits | OS.CBS_DROPDOWNLIST; - return bits | OS.CBS_DROPDOWN; -} - -TCHAR windowClass () { - return ComboClass; -} - -int /*long*/ windowProc () { - return ComboProc; -} - -int /*long*/ windowProc (int /*long*/ hwnd, int msg, int /*long*/ wParam, int /*long*/ lParam) { - if (handle == 0) return 0; - if (hwnd != handle) { - int /*long*/ hwndText = OS.GetDlgItem (handle, CBID_EDIT); - int /*long*/ hwndList = OS.GetDlgItem (handle, CBID_LIST); - if ((hwndText != 0 && hwnd == hwndText) || (hwndList != 0 && hwnd == hwndList)) { - LRESULT result = null; - switch (msg) { - /* Keyboard messages */ - case OS.WM_CHAR: result = wmChar (hwnd, wParam, lParam); break; - case OS.WM_IME_CHAR: result = wmIMEChar (hwnd, wParam, lParam); break; - case OS.WM_KEYDOWN: result = wmKeyDown (hwnd, wParam, lParam); break; - case OS.WM_KEYUP: result = wmKeyUp (hwnd, wParam, lParam); break; - case OS.WM_SYSCHAR: result = wmSysChar (hwnd, wParam, lParam); break; - case OS.WM_SYSKEYDOWN: result = wmSysKeyDown (hwnd, wParam, lParam); break; - case OS.WM_SYSKEYUP: result = wmSysKeyUp (hwnd, wParam, lParam); break; - - /* Mouse Messages */ - case OS.WM_CAPTURECHANGED: result = wmCaptureChanged (hwnd, wParam, lParam); break; - case OS.WM_LBUTTONDBLCLK: result = wmLButtonDblClk (hwnd, wParam, lParam); break; - case OS.WM_LBUTTONDOWN: result = wmLButtonDown (hwnd, wParam, lParam); break; - case OS.WM_LBUTTONUP: result = wmLButtonUp (hwnd, wParam, lParam); break; - case OS.WM_MBUTTONDBLCLK: result = wmMButtonDblClk (hwnd, wParam, lParam); break; - case OS.WM_MBUTTONDOWN: result = wmMButtonDown (hwnd, wParam, lParam); break; - case OS.WM_MBUTTONUP: result = wmMButtonUp (hwnd, wParam, lParam); break; - case OS.WM_MOUSEHOVER: result = wmMouseHover (hwnd, wParam, lParam); break; - case OS.WM_MOUSELEAVE: result = wmMouseLeave (hwnd, wParam, lParam); break; - case OS.WM_MOUSEMOVE: result = wmMouseMove (hwnd, wParam, lParam); break; -// case OS.WM_MOUSEWHEEL: result = wmMouseWheel (hwnd, wParam, lParam); break; - case OS.WM_RBUTTONDBLCLK: result = wmRButtonDblClk (hwnd, wParam, lParam); break; - case OS.WM_RBUTTONDOWN: result = wmRButtonDown (hwnd, wParam, lParam); break; - case OS.WM_RBUTTONUP: result = wmRButtonUp (hwnd, wParam, lParam); break; - case OS.WM_XBUTTONDBLCLK: result = wmXButtonDblClk (hwnd, wParam, lParam); break; - case OS.WM_XBUTTONDOWN: result = wmXButtonDown (hwnd, wParam, lParam); break; - case OS.WM_XBUTTONUP: result = wmXButtonUp (hwnd, wParam, lParam); break; - - /* Paint messages */ - case OS.WM_PAINT: result = wmPaint (hwnd, wParam, lParam); break; - - /* Menu messages */ - case OS.WM_CONTEXTMENU: result = wmContextMenu (hwnd, wParam, lParam); break; - - /* Clipboard messages */ - case OS.WM_CLEAR: - case OS.WM_CUT: - case OS.WM_PASTE: - case OS.WM_UNDO: - case OS.EM_UNDO: - case OS.WM_SETTEXT: - if (hwnd == hwndText) { - result = wmClipboard (hwnd, msg, wParam, lParam); - } - break; - } - if (result != null) return result.value; - return callWindowProc (hwnd, msg, wParam, lParam); - } - } - if (msg == OS.CB_SETCURSEL) { - if ((style & SWT.READ_ONLY) != 0) { - if (hooks (SWT.Verify) || filters (SWT.Verify)) { - String oldText = getText (), newText = null; - if (wParam == -1) { - newText = ""; - } else { - if (0 <= wParam && wParam < getItemCount ()) { - newText = getItem ((int)/*64*/wParam); - } - } - if (newText != null && !newText.equals (oldText)) { - int length = OS.GetWindowTextLength (handle); - oldText = newText; - newText = verifyText (newText, 0, length, null); - if (newText == null) return 0; - if (!newText.equals (oldText)) { - int index = indexOf (newText); - if (index != -1 && index != wParam) { - return callWindowProc (handle, OS.CB_SETCURSEL, index, lParam); - } - } - } - } - } - } - return super.windowProc (hwnd, msg, wParam, lParam); -} - -LRESULT WM_CTLCOLOR (int /*long*/ wParam, int /*long*/ lParam) { - return wmColorChild (wParam, lParam); -} - -LRESULT WM_GETDLGCODE (int /*long*/ wParam, int /*long*/ lParam) { - int /*long*/ code = callWindowProc (handle, OS.WM_GETDLGCODE, wParam, lParam); - return new LRESULT (code | OS.DLGC_WANTARROWS); -} - -LRESULT WM_KILLFOCUS (int /*long*/ wParam, int /*long*/ lParam) { - /* - * Bug in Windows. When a combo box that is read only - * is disposed in CBN_KILLFOCUS, Windows segment faults. - * The fix is to send focus from WM_KILLFOCUS instead - * of CBN_KILLFOCUS. - * - * NOTE: In version 6 of COMCTL32.DLL, the bug is fixed. - */ - if ((style & SWT.READ_ONLY) != 0) { - return super.WM_KILLFOCUS (wParam, lParam); - } - - /* - * Return NULL - Focus notification is - * done in WM_COMMAND by CBN_KILLFOCUS. - */ - return null; -} - -LRESULT WM_LBUTTONDOWN (int /*long*/ wParam, int /*long*/ lParam) { - /* - * Feature in Windows. When an editable combo box is dropped - * down and the text in the entry field partially matches an - * item in the list, Windows selects the item but doesn't send - * WM_COMMAND with CBN_SELCHANGE. The fix is to detect that - * the selection has changed and issue the notification. - */ - int oldSelection = (int)/*64*/OS.SendMessage (handle, OS.CB_GETCURSEL, 0, 0); - LRESULT result = super.WM_LBUTTONDOWN (wParam, lParam); - if (result == LRESULT.ZERO) return result; - if ((style & SWT.READ_ONLY) == 0) { - int newSelection = (int)/*64*/OS.SendMessage (handle, OS.CB_GETCURSEL, 0, 0); - if (oldSelection != newSelection) { - sendEvent (SWT.Modify); - if (isDisposed ()) return LRESULT.ZERO; - sendEvent (SWT.Selection); - if (isDisposed ()) return LRESULT.ZERO; - } - } - return result; -} - -LRESULT WM_SETFOCUS (int /*long*/ wParam, int /*long*/ lParam) { - /* - * Return NULL - Focus notification is - * done by WM_COMMAND with CBN_SETFOCUS. - */ - return null; -} - -LRESULT WM_SIZE (int /*long*/ wParam, int /*long*/ lParam) { - /* - * Feature in Windows. When a combo box is resized, - * the size of the drop down rectangle is specified - * using the height and then the combo box resizes - * to be the height of the text field. This causes - * two WM_SIZE messages to be sent and two SWT.Resize - * events to be issued. The fix is to ignore the - * second resize. - */ - if (ignoreResize) return null; - /* - * Bug in Windows. If the combo box has the CBS_SIMPLE style, - * the list portion of the combo box is not redrawn when the - * combo box is resized. The fix is to force a redraw when - * the size has changed. - */ - if ((style & SWT.SIMPLE) != 0) { - LRESULT result = super.WM_SIZE (wParam, lParam); - if (OS.IsWindowVisible (handle)) { - if (OS.IsWinCE) { - int /*long*/ hwndText = OS.GetDlgItem (handle, CBID_EDIT); - if (hwndText != 0) OS.InvalidateRect (hwndText, null, true); - int /*long*/ hwndList = OS.GetDlgItem (handle, CBID_LIST); - if (hwndList != 0) OS.InvalidateRect (hwndList, null, true); - } else { - int uFlags = OS.RDW_ERASE | OS.RDW_INVALIDATE | OS.RDW_ALLCHILDREN; - OS.RedrawWindow (handle, null, 0, uFlags); - } - } - return result; - } - - /* - * Feature in Windows. When an editable drop down combo box - * contains text that does not correspond to an item in the - * list, when the widget is resized, it selects the closest - * match from the list. The fix is to lock the current text - * by ignoring all WM_SETTEXT messages during processing of - * WM_SIZE. - */ - if ((style & SWT.READ_ONLY) == 0) lockText = true; - LRESULT result = super.WM_SIZE (wParam, lParam); - if ((style & SWT.READ_ONLY) == 0) lockText = false; - /* - * Feature in Windows. When CB_SETDROPPEDWIDTH is called with - * a width that is smaller than the current size of the combo - * box, it is ignored. This the fix is to set the width after - * the combo box has been resized. - */ - if ((style & SWT.H_SCROLL) != 0) setScrollWidth (scrollWidth); - return result; -} - -LRESULT WM_WINDOWPOSCHANGING (int /*long*/ wParam, int /*long*/ lParam) { - LRESULT result = super.WM_WINDOWPOSCHANGING (wParam, lParam); - if (result != null) return result; - /* - * Feature in Windows. When a combo box is resized, - * the size of the drop down rectangle is specified - * using the height and then the combo box resizes - * to be the height of the text field. This causes - * sibling windows that intersect with the original - * bounds to redrawn. The fix is to stop the redraw - * using SWP_NOREDRAW and then damage the combo box - * text field and the area in the parent where the - * combo box used to be. - */ - if (OS.IsWinCE) return result; - if (!getDrawing ()) return result; - if (!OS.IsWindowVisible (handle)) return result; - if (ignoreResize) { - WINDOWPOS lpwp = new WINDOWPOS (); - OS.MoveMemory (lpwp, lParam, WINDOWPOS.sizeof); - if ((lpwp.flags & OS.SWP_NOSIZE) == 0) { - lpwp.flags |= OS.SWP_NOREDRAW; - OS.MoveMemory (lParam, lpwp, WINDOWPOS.sizeof); - OS.InvalidateRect (handle, null, true); - RECT rect = new RECT (); - OS.GetWindowRect (handle, rect); - int width = rect.right - rect.left; - int height = rect.bottom - rect.top; - if (width != 0 && height != 0) { - int /*long*/ hwndParent = parent.handle; - int /*long*/ hwndChild = OS.GetWindow (hwndParent, OS.GW_CHILD); - OS.MapWindowPoints (0, hwndParent, rect, 2); - int /*long*/ rgn1 = OS.CreateRectRgn (rect.left, rect.top, rect.right, rect.bottom); - while (hwndChild != 0) { - if (hwndChild != handle) { - OS.GetWindowRect (hwndChild, rect); - OS.MapWindowPoints (0, hwndParent, rect, 2); - int /*long*/ rgn2 = OS.CreateRectRgn (rect.left, rect.top, rect.right, rect.bottom); - OS.CombineRgn (rgn1, rgn1, rgn2, OS.RGN_DIFF); - OS.DeleteObject (rgn2); - } - hwndChild = OS.GetWindow (hwndChild, OS.GW_HWNDNEXT); - } - int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE; - OS.RedrawWindow (hwndParent, null, rgn1, flags); - OS.DeleteObject (rgn1); - } - } - } - return result; -} - -LRESULT wmChar (int /*long*/ hwnd, int /*long*/ wParam, int /*long*/ lParam) { - if (ignoreCharacter) return null; - LRESULT result = super.wmChar (hwnd, wParam, lParam); - if (result != null) return result; - /* - * Feature in Windows. For some reason, when the - * widget is a single line text widget, when the - * user presses tab, return or escape, Windows beeps. - * The fix is to look for these keys and not call - * the window proc. - * - * NOTE: This only happens when the drop down list - * is not visible. - */ - switch ((int)/*64*/wParam) { - case SWT.TAB: return LRESULT.ZERO; - case SWT.CR: - if (!ignoreDefaultSelection) postEvent (SWT.DefaultSelection); - ignoreDefaultSelection = false; - // FALL THROUGH - case SWT.ESC: - if ((style & SWT.DROP_DOWN) != 0) { - if (OS.SendMessage (handle, OS.CB_GETDROPPEDSTATE, 0, 0) == 0) { - return LRESULT.ZERO; - } - } - } - return result; -} - -LRESULT wmClipboard (int /*long*/ hwndText, int msg, int /*long*/ wParam, int /*long*/ lParam) { - if ((style & SWT.READ_ONLY) != 0) return null; - if (!hooks (SWT.Verify) && !filters (SWT.Verify)) return null; - boolean call = false; - int [] start = new int [1], end = new int [1]; - String newText = null; - switch (msg) { - case OS.WM_CLEAR: - case OS.WM_CUT: - OS.SendMessage (hwndText, OS.EM_GETSEL, start, end); - if (start [0] != end [0]) { - newText = ""; - call = true; - } - break; - case OS.WM_PASTE: - OS.SendMessage (hwndText, OS.EM_GETSEL, start, end); - newText = getClipboardText (); - break; - case OS.EM_UNDO: - case OS.WM_UNDO: - if (OS.SendMessage (hwndText, OS.EM_CANUNDO, 0, 0) != 0) { - ignoreModify = true; - OS.CallWindowProc (EditProc, hwndText, msg, wParam, lParam); - int length = OS.GetWindowTextLength (hwndText); - int [] newStart = new int [1], newEnd = new int [1]; - OS.SendMessage (hwndText, OS.EM_GETSEL, newStart, newEnd); - if (length != 0 && newStart [0] != newEnd [0]) { - TCHAR buffer = new TCHAR (getCodePage (), length + 1); - OS.GetWindowText (hwndText, buffer, length + 1); - newText = buffer.toString (newStart [0], newEnd [0] - newStart [0]); - } else { - newText = ""; - } - OS.CallWindowProc (EditProc, hwndText, msg, wParam, lParam); - OS.SendMessage (hwndText, OS.EM_GETSEL, start, end); - ignoreModify = false; - } - break; - case OS.WM_SETTEXT: - end [0] = OS.GetWindowTextLength (hwndText); - int length = OS.IsUnicode ? OS.wcslen (lParam) : OS.strlen (lParam); - TCHAR buffer = new TCHAR (getCodePage (), length); - int byteCount = buffer.length () * TCHAR.sizeof; - OS.MoveMemory (buffer, lParam, byteCount); - newText = buffer.toString (0, length); - break; - } - if (newText != null) { - String oldText = newText; - newText = verifyText (newText, start [0], end [0], null); - if (newText == null) return LRESULT.ZERO; - if (!newText.equals (oldText)) { - if (call) { - OS.CallWindowProc (EditProc, hwndText, msg, wParam, lParam); - } - TCHAR buffer = new TCHAR (getCodePage (), newText, true); - if (msg == OS.WM_SETTEXT) { - int /*long*/ hHeap = OS.GetProcessHeap (); - int byteCount = buffer.length () * TCHAR.sizeof; - int /*long*/ pszText = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); - OS.MoveMemory (pszText, buffer, byteCount); - int /*long*/ code = OS.CallWindowProc (EditProc, hwndText, msg, wParam, pszText); - OS.HeapFree (hHeap, 0, pszText); - return new LRESULT (code); - } else { - OS.SendMessage (hwndText, OS.EM_REPLACESEL, 0, buffer); - return LRESULT.ZERO; - } - } - } - return null; -} - -LRESULT wmCommandChild (int /*long*/ wParam, int /*long*/ lParam) { - int code = OS.HIWORD (wParam); - switch (code) { - case OS.CBN_EDITCHANGE: - if (ignoreModify) break; - /* - * Feature in Windows. If the combo box list selection is - * queried using CB_GETCURSEL before the WM_COMMAND (with - * CBN_EDITCHANGE) returns, CB_GETCURSEL returns the previous - * selection in the list. It seems that the combo box sends - * the WM_COMMAND before it makes the selection in the list box - * match the entry field. The fix is remember that no selection - * in the list should exist in this case. - */ - noSelection = true; - sendEvent (SWT.Modify); - if (isDisposed ()) return LRESULT.ZERO; - noSelection = false; - break; - case OS.CBN_SELCHANGE: - /* - * Feature in Windows. If the text in an editable combo box - * is queried using GetWindowText () before the WM_COMMAND - * (with CBN_SELCHANGE) returns, GetWindowText () returns is - * the previous text in the combo box. It seems that the combo - * box sends the WM_COMMAND before it updates the text field to - * match the list selection. The fix is to force the text field - * to match the list selection by re-selecting the list item. - */ - int index = (int)/*64*/OS.SendMessage (handle, OS.CB_GETCURSEL, 0, 0); - if (index != OS.CB_ERR) { - OS.SendMessage (handle, OS.CB_SETCURSEL, index, 0); - } - /* - * It is possible (but unlikely), that application - * code could have disposed the widget in the modify - * event. If this happens, end the processing of the - * Windows message by returning zero as the result of - * the window proc. - */ - sendEvent (SWT.Modify); - if (isDisposed ()) return LRESULT.ZERO; - postEvent (SWT.Selection); - break; - case OS.CBN_SETFOCUS: - sendFocusEvent (SWT.FocusIn); - if (isDisposed ()) return LRESULT.ZERO; - break; - case OS.CBN_KILLFOCUS: - /* - * Bug in Windows. When a combo box that is read only - * is disposed in CBN_KILLFOCUS, Windows segment faults. - * The fix is to send focus from WM_KILLFOCUS instead - * of CBN_KILLFOCUS. - * - * NOTE: In version 6 of COMCTL32.DLL, the bug is fixed. - */ - if ((style & SWT.READ_ONLY) != 0) break; - sendFocusEvent (SWT.FocusOut); - if (isDisposed ()) return LRESULT.ZERO; - break; - } - return super.wmCommandChild (wParam, lParam); -} - -LRESULT wmIMEChar (int /*long*/ hwnd, int /*long*/ wParam, int /*long*/ lParam) { - - /* Process a DBCS character */ - Display display = this.display; - display.lastKey = 0; - display.lastAscii = (int)/*64*/wParam; - display.lastVirtual = display.lastNull = display.lastDead = false; - if (!sendKeyEvent (SWT.KeyDown, OS.WM_IME_CHAR, wParam, lParam)) { - return LRESULT.ZERO; - } - - /* - * Feature in Windows. The Windows text widget uses - * two 2 WM_CHAR's to process a DBCS key instead of - * using WM_IME_CHAR. The fix is to allow the text - * widget to get the WM_CHAR's but ignore sending - * them to the application. - */ - ignoreCharacter = true; - int /*long*/ result = callWindowProc (hwnd, OS.WM_IME_CHAR, wParam, lParam); - MSG msg = new MSG (); - int flags = OS.PM_REMOVE | OS.PM_NOYIELD | OS.PM_QS_INPUT | OS.PM_QS_POSTMESSAGE; - while (OS.PeekMessage (msg, hwnd, OS.WM_CHAR, OS.WM_CHAR, flags)) { - OS.TranslateMessage (msg); - OS.DispatchMessage (msg); - } - ignoreCharacter = false; - - sendKeyEvent (SWT.KeyUp, OS.WM_IME_CHAR, wParam, lParam); - // widget could be disposed at this point - display.lastKey = display.lastAscii = 0; - return new LRESULT (result); -} - -LRESULT wmKeyDown (int /*long*/ hwnd, int /*long*/ wParam, int /*long*/ lParam) { - if (ignoreCharacter) return null; - LRESULT result = super.wmKeyDown (hwnd, wParam, lParam); - if (result != null) return result; - ignoreDefaultSelection = false; - if (wParam == OS.VK_RETURN) { - if ((style & SWT.DROP_DOWN) != 0) { - if (OS.SendMessage (handle, OS.CB_GETDROPPEDSTATE, 0, 0) != 0) { - ignoreDefaultSelection = true; - } - } - } - return result; -} - -LRESULT wmSysKeyDown (int /*long*/ hwnd, int /*long*/ wParam, int /*long*/ lParam) { - /* - * Feature in Windows. When an editable combo box is dropped - * down using Alt+Down and the text in the entry field partially - * matches an item in the list, Windows selects the item but doesn't - * send WM_COMMAND with CBN_SELCHANGE. The fix is to detect that - * the selection has changed and issue the notification. - */ - int oldSelection = (int)/*64*/OS.SendMessage (handle, OS.CB_GETCURSEL, 0, 0); - LRESULT result = super.wmSysKeyDown (hwnd, wParam, lParam); - if (result != null) return result; - if ((style & SWT.READ_ONLY) == 0) { - if (wParam == OS.VK_DOWN) { - int /*long*/ code = callWindowProc (hwnd, OS.WM_SYSKEYDOWN, wParam, lParam); - int newSelection = (int)/*64*/OS.SendMessage (handle, OS.CB_GETCURSEL, 0, 0); - if (oldSelection != newSelection) { - sendEvent (SWT.Modify); - if (isDisposed ()) return LRESULT.ZERO; - sendEvent (SWT.Selection); - if (isDisposed ()) return LRESULT.ZERO; - } - return new LRESULT (code); - } - } - return result; -} - -} |