--- /dev/null
+/*******************************************************************************
+ * Copyright (c) 2000, 2014 IBM Corporation and others.
+ *
+ * This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License 2.0
+ * which accompanies this distribution, and is available at
+ * https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.widgets;
+
+
+import org.eclipse.swt.*;
+import org.eclipse.swt.events.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.internal.*;
+import org.eclipse.swt.internal.win32.*;
+
+/**
+ * Instances of this class are user interface objects that contain
+ * menu items.
+ * <dl>
+ * <dt><b>Styles:</b></dt>
+ * <dd>BAR, DROP_DOWN, POP_UP, NO_RADIO_GROUP</dd>
+ * <dd>LEFT_TO_RIGHT, RIGHT_TO_LEFT</dd>
+ * <dt><b>Events:</b></dt>
+ * <dd>Help, Hide, Show </dd>
+ * </dl>
+ * <p>
+ * Note: Only one of BAR, DROP_DOWN and POP_UP may be specified.
+ * Only one of LEFT_TO_RIGHT or RIGHT_TO_LEFT may be specified.
+ * </p><p>
+ * IMPORTANT: This class is <em>not</em> intended to be subclassed.
+ * </p>
+ *
+ * @see <a href="http://www.eclipse.org/swt/snippets/#menu">Menu 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 Menu extends Widget {
+ /**
+ * the handle to the OS resource
+ * (Warning: This field is platform dependent)
+ * <p>
+ * <b>IMPORTANT:</b> This field is <em>not</em> part of the SWT
+ * public API. It is marked public only so that it can be shared
+ * within the packages provided by SWT. It is not available on all
+ * platforms and should never be accessed from application code.
+ * </p>
+ *
+ * @noreference This field is not intended to be referenced by clients.
+ */
+ public long handle;
+
+ int x, y;
+ long hBrush;
+ int id0, id1;
+ int foreground = -1, background = -1;
+ Image backgroundImage;
+ boolean hasLocation;
+ MenuItem cascade;
+ Decorations parent;
+ MenuItem selectedMenuItem;
+
+ /* Timer ID for MenuItem ToolTip */
+ static final int ID_TOOLTIP_TIMER = 110;
+
+/**
+ * Constructs a new instance of this class given its parent,
+ * and sets the style for the instance so that the instance
+ * will be a popup menu on the given parent's shell.
+ * <p>
+ * After constructing a menu, it can be set into its parent
+ * using <code>parent.setMenu(menu)</code>. In this case, the parent may
+ * be any control in the same widget tree as the parent.
+ * </p>
+ *
+ * @param parent a control which will be the parent of the new instance (cannot be null)
+ *
+ * @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#POP_UP
+ * @see Widget#checkSubclass
+ * @see Widget#getStyle
+ */
+public Menu (Control parent) {
+ this (checkNull (parent).menuShell (), SWT.POP_UP);
+}
+
+/**
+ * Constructs a new instance of this class given its parent
+ * (which must be a <code>Decorations</code>) 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><p>
+ * After constructing a menu or menuBar, it can be set into its parent
+ * using <code>parent.setMenu(menu)</code> or <code>parent.setMenuBar(menuBar)</code>.
+ * </p>
+ *
+ * @param parent a decorations control which will be the parent of the new instance (cannot be null)
+ * @param style the style of menu 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#BAR
+ * @see SWT#DROP_DOWN
+ * @see SWT#POP_UP
+ * @see SWT#NO_RADIO_GROUP
+ * @see SWT#LEFT_TO_RIGHT
+ * @see SWT#RIGHT_TO_LEFT
+ * @see Widget#checkSubclass
+ * @see Widget#getStyle
+ */
+public Menu (Decorations parent, int style) {
+ this (parent, checkStyle (style), 0);
+}
+
+/**
+ * Constructs a new instance of this class given its parent
+ * (which must be a <code>Menu</code>) and sets the style
+ * for the instance so that the instance will be a drop-down
+ * menu on the given parent's parent.
+ * <p>
+ * After constructing a drop-down menu, it can be set into its parentMenu
+ * using <code>parentMenu.setMenu(menu)</code>.
+ * </p>
+ *
+ * @param parentMenu a menu which will be the parent of the new instance (cannot be null)
+ *
+ * @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 Widget#checkSubclass
+ * @see Widget#getStyle
+ */
+public Menu (Menu parentMenu) {
+ this (checkNull (parentMenu).parent, SWT.DROP_DOWN);
+}
+
+/**
+ * Constructs a new instance of this class given its parent
+ * (which must be a <code>MenuItem</code>) and sets the style
+ * for the instance so that the instance will be a drop-down
+ * menu on the given parent's parent menu.
+ * <p>
+ * After constructing a drop-down menu, it can be set into its parentItem
+ * using <code>parentItem.setMenu(menu)</code>.
+ * </p>
+ *
+ * @param parentItem a menu item which will be the parent of the new instance (cannot be null)
+ *
+ * @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 Widget#checkSubclass
+ * @see Widget#getStyle
+ */
+public Menu (MenuItem parentItem) {
+ this (checkNull (parentItem).parent);
+}
+
+Menu (Decorations parent, int style, long handle) {
+ super (parent, checkStyle (style));
+ this.parent = parent;
+ this.handle = handle;
+ /*
+ * Bug in IBM JVM 1.3.1. For some reason, when the checkOrientation() is
+ * called from createWidget(), the JVM issues this error:
+ *
+ * JVM Exception 0x2 (subcode 0x0) occurred in thread "main" (TID:0x9F19D8)
+ *
+ * In addition, on Windows XP, a dialog appears with following error message,
+ * indicating that the problem may be in the JIT:
+ *
+ * AppName: java.exe AppVer: 0.0.0.0 ModName: jitc.dll
+ * ModVer: 0.0.0.0 Offset: 000b6912
+ *
+ * The fix is to call checkOrientation() from here.
+ */
+ checkOrientation (parent);
+ createWidget ();
+}
+
+void _setVisible (boolean visible) {
+ if ((style & (SWT.BAR | SWT.DROP_DOWN)) != 0) return;
+ long hwndParent = parent.handle;
+ if (visible) {
+ int flags = OS.TPM_LEFTBUTTON;
+ if (OS.GetKeyState (OS.VK_LBUTTON) >= 0) flags |= OS.TPM_RIGHTBUTTON;
+ if ((style & SWT.RIGHT_TO_LEFT) != 0) flags |= OS.TPM_RIGHTALIGN;
+ if ((parent.style & SWT.MIRRORED) != 0) {
+ flags &= ~OS.TPM_RIGHTALIGN;
+ if ((style & SWT.LEFT_TO_RIGHT) != 0) flags |= OS.TPM_RIGHTALIGN;
+ }
+ int nX = x, nY = y;
+ if (!hasLocation) {
+ int pos = OS.GetMessagePos ();
+ nX = OS.GET_X_LPARAM (pos);
+ nY = OS.GET_Y_LPARAM (pos);
+ }
+ hasLocation = false;
+ Display display = this.display;
+ display.sendPreExternalEventDispatchEvent ();
+ /*
+ * Feature in Windows. It is legal use TrackPopupMenu()
+ * to display an empty menu as long as menu items are added
+ * inside of WM_INITPOPUPMENU. If no items are added, then
+ * TrackPopupMenu() fails and does not send an indication
+ * that the menu has been closed. This is not strictly a
+ * bug but leads to unwanted behavior when application code
+ * assumes that every WM_INITPOPUPMENU will eventually result
+ * in a WM_MENUSELECT, wParam=MAKEWPARAM (0, 0xFFFF), lParam=0 to
+ * indicate that the menu has been closed. The fix is to detect
+ * the case when TrackPopupMenu() fails and the number of items in
+ * the menu is zero and issue a fake WM_MENUSELECT.
+ */
+ boolean success = OS.TrackPopupMenu (handle, flags, nX, nY, 0, hwndParent, null);
+ // widget could be disposed at this point
+ display.sendPostExternalEventDispatchEvent ();
+ if (!success && OS.GetMenuItemCount (handle) == 0) {
+ OS.SendMessage (hwndParent, OS.WM_MENUSELECT, OS.MAKEWPARAM (0, 0xFFFF), 0);
+ }
+ } else {
+ OS.SendMessage (hwndParent, OS.WM_CANCELMODE, 0, 0);
+ }
+ /*
+ * Bug in Windows. After closing a popup menu, the accessibility focus
+ * is not returned to the focus control. This causes confusion for AT users.
+ * The fix is to explicitly set the accessibility focus back to the focus control.
+ */
+ long hFocus = OS.GetFocus();
+ if (hFocus != 0) {
+ OS.NotifyWinEvent (OS.EVENT_OBJECT_FOCUS, hFocus, OS.OBJID_CLIENT, 0);
+ }
+}
+
+/**
+ * Adds the listener to the collection of listeners who will
+ * be notified when help events are generated for the control,
+ * by sending it one of the messages defined in the
+ * <code>HelpListener</code> interface.
+ *
+ * @param listener the listener which should be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see HelpListener
+ * @see #removeHelpListener
+ */
+public void addHelpListener (HelpListener listener) {
+ checkWidget ();
+ if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
+ TypedListener typedListener = new TypedListener (listener);
+ addListener (SWT.Help, typedListener);
+}
+
+/**
+ * Adds the listener to the collection of listeners who will
+ * be notified when menus are hidden or shown, by sending it
+ * one of the messages defined in the <code>MenuListener</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 MenuListener
+ * @see #removeMenuListener
+ */
+public void addMenuListener (MenuListener listener) {
+ checkWidget ();
+ if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
+ TypedListener typedListener = new TypedListener (listener);
+ addListener (SWT.Hide,typedListener);
+ addListener (SWT.Show,typedListener);
+}
+
+static Control checkNull (Control control) {
+ if (control == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
+ return control;
+}
+
+static Menu checkNull (Menu menu) {
+ if (menu == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
+ return menu;
+}
+
+static MenuItem checkNull (MenuItem item) {
+ if (item == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
+ return item;
+}
+
+static int checkStyle (int style) {
+ return checkBits (style, SWT.POP_UP, SWT.BAR, SWT.DROP_DOWN, 0, 0, 0);
+}
+
+void createHandle () {
+ if (handle != 0) return;
+ if ((style & SWT.BAR) != 0) {
+ handle = OS.CreateMenu ();
+ } else {
+ handle = OS.CreatePopupMenu ();
+ }
+ if (handle == 0) error (SWT.ERROR_NO_HANDLES);
+}
+
+void createItem (MenuItem item, int index) {
+ int count = OS.GetMenuItemCount (handle);
+ if (!(0 <= index && index <= count)) error (SWT.ERROR_INVALID_RANGE);
+ display.addMenuItem (item);
+ /*
+ * Bug in Windows. For some reason, when InsertMenuItem()
+ * is used to insert an item without text, it is not possible
+ * to use SetMenuItemInfo() to set the text at a later time.
+ * The fix is to insert the item with some text.
+ *
+ * Feature in Windows. When an empty string is used instead
+ * of a space and InsertMenuItem() is used to set a submenu
+ * before setting text to a non-empty string, the menu item
+ * becomes unexpectedly disabled. The fix is to insert a
+ * space.
+ */
+ long hHeap = OS.GetProcessHeap ();
+ long pszText = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, 4);
+ OS.MoveMemory (pszText, new char [] {' ', '\0'}, 4);
+ MENUITEMINFO info = new MENUITEMINFO ();
+ info.cbSize = MENUITEMINFO.sizeof;
+ info.fMask = OS.MIIM_ID | OS.MIIM_TYPE | OS.MIIM_DATA;
+ info.wID = item.id;
+ info.dwItemData = item.id;
+ info.fType = item.widgetStyle ();
+ info.dwTypeData = pszText;
+ boolean success = OS.InsertMenuItem (handle, index, true, info);
+ if (pszText != 0) OS.HeapFree (hHeap, 0, pszText);
+ if (!success) {
+ display.removeMenuItem (item);
+ error (SWT.ERROR_ITEM_NOT_ADDED);
+ }
+ redraw ();
+}
+
+void createWidget () {
+ /*
+ * Bug in IBM JVM 1.3.1. For some reason, when the following code is called
+ * from this method, the JVM issues this error:
+ *
+ * JVM Exception 0x2 (subcode 0x0) occurred in thread "main" (TID:0x9F19D8)
+ *
+ * In addition, on Windows XP, a dialog appears with following error message,
+ * indicating that the problem may be in the JIT:
+ *
+ * AppName: java.exe AppVer: 0.0.0.0 ModName: jitc.dll
+ * ModVer: 0.0.0.0 Offset: 000b6912
+ *
+ * The fix is to move the code to the caller of this method.
+ */
+// checkOrientation (parent);
+ createHandle ();
+ parent.addMenu (this);
+}
+
+int defaultBackground () {
+ return OS.GetSysColor (OS.COLOR_MENU);
+}
+
+int defaultForeground () {
+ return OS.GetSysColor (OS.COLOR_MENUTEXT);
+}
+
+void destroyAccelerators () {
+ parent.destroyAccelerators ();
+}
+
+void destroyItem (MenuItem item) {
+ if (!OS.DeleteMenu (handle, item.id, OS.MF_BYCOMMAND)) {
+ error (SWT.ERROR_ITEM_NOT_REMOVED);
+ }
+ redraw ();
+}
+
+@Override
+void destroyWidget () {
+ MenuItem cascade = this.cascade;
+ long hMenu = handle;
+ releaseHandle ();
+ if (cascade != null) {
+ cascade.setMenu (null, true);
+ } else {
+ if (hMenu != 0) OS.DestroyMenu (hMenu);
+ }
+}
+
+void fixMenus (Decorations newParent) {
+ if (isDisposed()) {
+ return;
+ }
+ MenuItem [] items = getItems ();
+ for (int i=0; i<items.length; i++) {
+ items [i].fixMenus (newParent);
+ }
+ parent.removeMenu (this);
+ newParent.addMenu (this);
+ this.parent = newParent;
+}
+
+/**
+ * Returns the receiver's background color.
+ *
+ * @return the background color
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.3
+ */
+/*public*/ Color getBackground () {
+ checkWidget ();
+ return Color.win32_new (display, background != -1 ? background : defaultBackground ());
+}
+
+/**
+ * Returns the receiver's background image.
+ *
+ * @return the background image
+ *
+ * @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 3.3
+ */
+/*public*/ Image getBackgroundImage () {
+ checkWidget ();
+ return backgroundImage;
+}
+
+/**
+ * Returns a rectangle describing the receiver's size and location
+ * relative to its parent (or its display if its parent is null),
+ * unless the receiver is a menu or a shell. In this case, the
+ * location is relative to the display.
+ * <p>
+ * Note that the bounds of a menu or menu item are undefined when
+ * the menu is not visible. This is because most platforms compute
+ * the bounds of a menu dynamically just before it is displayed.
+ * </p>
+ *
+ * @return the receiver's bounding rectangle
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.1
+ */
+/*public*/ Rectangle getBounds () {
+ checkWidget ();
+ if ((style & SWT.BAR) != 0) {
+ if (parent.menuBar != this) {
+ return new Rectangle (0, 0, 0, 0);
+ }
+ long hwndShell = parent.handle;
+ MENUBARINFO info = new MENUBARINFO ();
+ info.cbSize = MENUBARINFO.sizeof;
+ if (OS.GetMenuBarInfo (hwndShell, OS.OBJID_MENU, 0, info)) {
+ int width = info.right - info.left;
+ int height = info.bottom - info.top;
+ return new Rectangle (info.left, info.top, width, height);
+ }
+ } else {
+ int count = OS.GetMenuItemCount (handle);
+ if (count != 0) {
+ RECT rect1 = new RECT ();
+ if (OS.GetMenuItemRect (0, handle, 0, rect1)) {
+ RECT rect2 = new RECT ();
+ if (OS.GetMenuItemRect (0, handle, count - 1, rect2)) {
+ int x = rect1.left - 2, y = rect1.top - 2;
+ int width = (rect2.right - rect2.left) + 4;
+ int height = (rect2.bottom - rect1.top) + 4;
+ return new Rectangle (x, y, width, height);
+ }
+ }
+ }
+ }
+ return new Rectangle (0, 0, 0, 0);
+}
+
+/**
+ * Returns the default menu item or null if none has
+ * been previously set.
+ *
+ * @return the default menu 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 MenuItem getDefaultItem () {
+ checkWidget ();
+ int id = OS.GetMenuDefaultItem (handle, OS.MF_BYCOMMAND, OS.GMDI_USEDISABLED);
+ if (id == -1) return null;
+ MENUITEMINFO info = new MENUITEMINFO ();
+ info.cbSize = MENUITEMINFO.sizeof;
+ info.fMask = OS.MIIM_ID;
+ if (OS.GetMenuItemInfo (handle, id, false, info)) {
+ return display.getMenuItem (info.wID);
+ }
+ return null;
+}
+
+/**
+ * Returns <code>true</code> if the receiver is enabled, and
+ * <code>false</code> otherwise. A disabled menu is typically
+ * not selectable from the user interface and draws with an
+ * inactive or "grayed" look.
+ *
+ * @return the receiver's enabled state
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see #isEnabled
+ */
+public boolean getEnabled () {
+ checkWidget ();
+ return (state & DISABLED) == 0;
+}
+
+/**
+ * Returns the foreground color that the receiver will use to draw.
+ *
+ * @return the receiver's foreground color
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+/*public*/ Color getForeground () {
+ checkWidget ();
+ return Color.win32_new (display, foreground != -1 ? foreground : defaultForeground ());
+}
+
+/**
+ * Returns the item at the given, zero-relative index in the
+ * receiver. 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 MenuItem getItem (int index) {
+ checkWidget ();
+ int id = 0;
+ MENUITEMINFO info = new MENUITEMINFO ();
+ info.cbSize = MENUITEMINFO.sizeof;
+ info.fMask = OS.MIIM_DATA;
+ if (!OS.GetMenuItemInfo (handle, index, true, info)) {
+ error (SWT.ERROR_INVALID_RANGE);
+ }
+ id = (int)info.dwItemData;
+ return display.getMenuItem (id);
+}
+
+/**
+ * Returns the number of items contained in the receiver.
+ *
+ * @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 ();
+ return OS.GetMenuItemCount (handle);
+}
+
+/**
+ * Returns a (possibly empty) array of <code>MenuItem</code>s which
+ * are the items in the receiver.
+ * <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
+ *
+ * @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 MenuItem [] getItems () {
+ checkWidget ();
+ int index = 0, count = 0;
+ int length = OS.GetMenuItemCount (handle);
+ if (length < 0) {
+ int error = OS.GetLastError();
+ SWT.error(SWT.ERROR_CANNOT_GET_COUNT, null, " [GetLastError=0x" + Integer.toHexString(error) + "]");//$NON-NLS-1$ $NON-NLS-2$
+ }
+ MenuItem [] items = new MenuItem [length];
+ MENUITEMINFO info = new MENUITEMINFO ();
+ info.cbSize = MENUITEMINFO.sizeof;
+ info.fMask = OS.MIIM_DATA;
+ while (OS.GetMenuItemInfo (handle, index, true, info)) {
+ if (count == items.length) {
+ MenuItem [] newItems = new MenuItem [count + 4];
+ System.arraycopy (items, 0, newItems, 0, count);
+ items = newItems;
+ }
+ MenuItem item = display.getMenuItem ((int)info.dwItemData);
+ if (item != null) items [count++] = item;
+ index++;
+ }
+ if (count == items.length) return items;
+ MenuItem [] result = new MenuItem [count];
+ System.arraycopy (items, 0, result, 0, count);
+ return result;
+}
+
+@Override
+String getNameText () {
+ String result = "";
+ MenuItem [] items = getItems ();
+ int length = items.length;
+ if (length > 0) {
+ for (int i=0; i<=length-1; i++) {
+ result += (items [i] == null ? "null" : items [i].getNameText())
+ + (i < (length - 1) ? ", " : "");
+ }
+ }
+ return result;
+}
+
+/**
+ * Returns the orientation of the receiver, which will be one of the
+ * constants <code>SWT.LEFT_TO_RIGHT</code> or <code>SWT.RIGHT_TO_LEFT</code>.
+ *
+ * @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 3.7
+ */
+public int getOrientation () {
+ checkWidget ();
+ return style & (SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT);
+}
+
+/**
+ * Returns the receiver's parent, which must be a <code>Decorations</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 Decorations getParent () {
+ checkWidget ();
+ return parent;
+}
+
+/**
+ * Returns the receiver's parent item, which must be a
+ * <code>MenuItem</code> or null when the receiver is a
+ * root.
+ *
+ * @return the receiver's parent 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 MenuItem getParentItem () {
+ checkWidget ();
+ return cascade;
+}
+
+/**
+ * Returns the receiver's parent item, which must be a
+ * <code>Menu</code> or null when the receiver is a
+ * root.
+ *
+ * @return the receiver's parent 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 Menu getParentMenu () {
+ checkWidget ();
+ if (cascade != null) return cascade.parent;
+ return null;
+}
+
+/**
+ * Returns the receiver's shell. For all controls other than
+ * shells, this simply returns the control's nearest ancestor
+ * shell. Shells return themselves, even if they are children
+ * of other shells. Returns null if receiver or its ancestor
+ * is the application menubar.
+ *
+ * @return the receiver's shell or null
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see #getParent
+ */
+public Shell getShell () {
+ checkWidget ();
+ return parent.getShell ();
+}
+
+/**
+ * Returns <code>true</code> if the receiver is visible, and
+ * <code>false</code> otherwise.
+ * <p>
+ * If one of the receiver's ancestors is not visible or some
+ * other condition makes the receiver not visible, this method
+ * may still indicate that it is considered visible even though
+ * it may not actually be showing.
+ * </p>
+ *
+ * @return the receiver's visibility state
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public boolean getVisible () {
+ checkWidget ();
+ if ((style & SWT.BAR) != 0) {
+ return this == parent.menuShell ().menuBar;
+ }
+ if ((style & SWT.POP_UP) != 0) {
+ Menu [] popups = display.popups;
+ if (popups == null) return false;
+ for (int i=0; i<popups.length; i++) {
+ if (popups [i] == this) return true;
+ }
+ }
+ Shell shell = getShell ();
+ Menu menu = shell.activeMenu;
+ while (menu != null && menu != this) {
+ menu = menu.getParentMenu ();
+ }
+ return this == menu;
+}
+
+void hideCurrentToolTip () {
+ if (this.selectedMenuItem != null) {
+ selectedMenuItem.hideToolTip ();
+ }
+}
+
+/**
+ * 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 item the search item
+ * @return the index of the item
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the item 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 (MenuItem item) {
+ checkWidget ();
+ if (item == null) error (SWT.ERROR_NULL_ARGUMENT);
+ if (item.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
+ if (item.parent != this) return -1;
+ int index = 0;
+ MENUITEMINFO info = new MENUITEMINFO ();
+ info.cbSize = MENUITEMINFO.sizeof;
+ info.fMask = OS.MIIM_DATA;
+ while (OS.GetMenuItemInfo (handle, index, true, info)) {
+ if (info.dwItemData == item.id) return index;
+ index++;
+ }
+ return -1;
+}
+
+/**
+ * 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 menu is typically not selectable from the
+ * user interface and draws with an inactive or "grayed" look.
+ *
+ * @return the receiver's enabled state
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see #getEnabled
+ */
+public boolean isEnabled () {
+ checkWidget ();
+ Menu parentMenu = getParentMenu ();
+ if (parentMenu == null) {
+ return getEnabled () && parent.isEnabled ();
+ }
+ return getEnabled () && parentMenu.isEnabled ();
+}
+
+/**
+ * Returns <code>true</code> if the receiver is visible and all
+ * of the receiver's ancestors are visible and <code>false</code>
+ * otherwise.
+ *
+ * @return the receiver's visibility state
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see #getVisible
+ */
+public boolean isVisible () {
+ checkWidget ();
+ return getVisible ();
+}
+
+void redraw () {
+ if (!isVisible ()) return;
+ if ((style & SWT.BAR) != 0) {
+ display.addBar (this);
+ } else {
+ update ();
+ }
+}
+
+@Override
+void releaseHandle () {
+ super.releaseHandle ();
+ handle = 0;
+ cascade = null;
+}
+
+@Override
+void releaseChildren (boolean destroy) {
+ MenuItem [] items = getItems ();
+ for (int i=0; i<items.length; i++) {
+ MenuItem item = items [i];
+ if (item != null && !item.isDisposed ()) {
+ item.release (false);
+ }
+ }
+ super.releaseChildren (destroy);
+}
+
+@Override
+void releaseParent () {
+ super.releaseParent ();
+ if ((style & SWT.BAR) != 0) {
+ display.removeBar (this);
+ if (this == parent.menuBar) {
+ parent.setMenuBar (null);
+ }
+ } else {
+ if ((style & SWT.POP_UP) != 0) {
+ display.removePopup (this);
+ }
+ }
+}
+
+@Override
+void releaseWidget () {
+ super.releaseWidget ();
+ backgroundImage = null;
+ if (hBrush != 0) OS.DeleteObject (hBrush);
+ hBrush = 0;
+ if (parent != null) parent.removeMenu (this);
+ parent = null;
+}
+
+/**
+ * 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 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 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 menu events are generated for the control.
+ *
+ * @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 MenuListener
+ * @see #addMenuListener
+ */
+public void removeMenuListener (MenuListener listener) {
+ checkWidget ();
+ if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
+ if (eventTable == null) return;
+ eventTable.unhook (SWT.Hide, listener);
+ eventTable.unhook (SWT.Show, listener);
+}
+
+@Override
+void reskinChildren (int flags) {
+ MenuItem [] items = getItems ();
+ for (int i=0; i<items.length; i++) {
+ MenuItem item = items [i];
+ item.reskin (flags);
+ }
+ super.reskinChildren (flags);
+}
+
+/**
+ * Sets the receiver's background color to the color specified
+ * by the argument, or to the default system color for the control
+ * if the argument is null.
+ *
+ * @param color the new color (or null)
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.3
+ */
+/*public*/ void setBackground (Color color) {
+ checkWidget ();
+ int pixel = -1;
+ if (color != null) {
+ if (color.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
+ pixel = color.handle;
+ }
+ if (pixel == background) return;
+ background = pixel;
+ updateBackground ();
+}
+
+/**
+ * Sets the receiver's background image to the image specified
+ * by the argument, or to the default system color for the control
+ * if the argument is null. The background image is tiled to fill
+ * the available space.
+ *
+ * @param image the new image (or null)
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
+ * <li>ERROR_INVALID_ARGUMENT - if the argument is not a bitmap</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>
+ *
+ * @since 3.3
+ */
+/*public*/ void setBackgroundImage (Image image) {
+ checkWidget ();
+ if (image != null) {
+ if (image.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT);
+ if (image.type != SWT.BITMAP) error (SWT.ERROR_INVALID_ARGUMENT);
+ }
+ if (backgroundImage == image) return;
+ backgroundImage = image;
+ updateBackground ();
+}
+
+/**
+ * Sets the receiver's foreground color to the color specified
+ * by the argument, or to the default system color for the control
+ * if the argument is null.
+ *
+ * @param color the new color (or null)
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.3
+ */
+/*public*/ void setForeground (Color color) {
+ checkWidget ();
+ int pixel = -1;
+ if (color != null) {
+ if (color.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
+ pixel = color.handle;
+ }
+ if (pixel == foreground) return;
+ foreground = pixel;
+ updateForeground ();
+}
+
+/**
+ * Sets the default menu item to the argument or removes
+ * the default emphasis when the argument is <code>null</code>.
+ *
+ * @param item the default menu item or null
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT - if the menu item has been disposed</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setDefaultItem (MenuItem item) {
+ checkWidget ();
+ int newID = -1;
+ if (item != null) {
+ if (item.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
+ if (item.parent != this) return;
+ newID = item.id;
+ }
+ int oldID = OS.GetMenuDefaultItem (handle, OS.MF_BYCOMMAND, OS.GMDI_USEDISABLED);
+ if (newID == oldID) return;
+ OS.SetMenuDefaultItem (handle, newID, OS.MF_BYCOMMAND);
+ redraw ();
+}
+
+/**
+ * Enables the receiver if the argument is <code>true</code>,
+ * and disables it otherwise. A disabled menu 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 ();
+ state &= ~DISABLED;
+ if (!enabled) state |= DISABLED;
+}
+
+/**
+ * Sets the location of the receiver, which must be a popup,
+ * to the point specified by the arguments which are relative
+ * to the display.
+ * <p>
+ * Note that this is different from most widgets where the
+ * location of the widget is relative to the parent.
+ * </p><p>
+ * Also note that the actual location of the menu is dependent
+ * on platform specific behavior. For example: on Linux with
+ * Wayland this operation is a hint due to lack of global
+ * coordinates.
+ * </p>
+ *
+ * @param x the new x coordinate for the receiver
+ * @param y the new y coordinate for the receiver
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setLocation (int x, int y) {
+ checkWidget ();
+ setLocationInPixels(DPIUtil.autoScaleUp(x), DPIUtil.autoScaleUp(y));
+}
+
+void setLocationInPixels (int x, int y) {
+ if ((style & (SWT.BAR | SWT.DROP_DOWN)) != 0) return;
+ this.x = x;
+ this.y = y;
+ hasLocation = true;
+}
+
+/**
+ * Sets the location of the receiver, which must be a popup,
+ * to the point specified by the argument which is relative
+ * to the display.
+ * <p>
+ * Note that this is different from most widgets where the
+ * location of the widget is relative to the parent.
+ * </p><p>
+ * Note that the platform window manager ultimately has control
+ * over the location of popup menus.
+ * </p>
+ *
+ * @param location the new location for the receiver
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the point is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 2.1
+ */
+public void setLocation (Point location) {
+ checkWidget ();
+ if (location == null) error (SWT.ERROR_NULL_ARGUMENT);
+ location = DPIUtil.autoScaleUp(location);
+ setLocationInPixels(location.x, location.y);
+}
+
+/**
+ * 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 3.7
+ */
+public void setOrientation (int orientation) {
+ checkWidget ();
+ if ((style & (SWT.BAR | SWT.DROP_DOWN)) != 0) return;
+ _setOrientation (orientation);
+}
+
+void _setOrientation (int orientation) {
+ int flags = SWT.RIGHT_TO_LEFT | SWT.LEFT_TO_RIGHT;
+ if ((orientation & flags) == 0 || (orientation & flags) == flags) return;
+ style &= ~flags;
+ style |= orientation & flags;
+ style &= ~SWT.FLIP_TEXT_DIRECTION;
+ MenuItem [] itms = getItems ();
+ for (int i=0; i<itms.length; i++) {
+ itms [i].setOrientation (orientation);
+ }
+}
+
+/**
+ * Marks the receiver as visible if the argument is <code>true</code>,
+ * and marks it invisible otherwise.
+ * <p>
+ * If one of the receiver's ancestors is not visible or some
+ * other condition makes the receiver not visible, marking
+ * it visible may not actually cause it to be displayed.
+ * </p>
+ *
+ * @param visible the new visibility state
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setVisible (boolean visible) {
+ checkWidget ();
+ if ((style & (SWT.BAR | SWT.DROP_DOWN)) != 0) return;
+ if (visible) {
+ display.addPopup (this);
+ } else {
+ display.removePopup (this);
+ _setVisible (false);
+ }
+}
+
+void update () {
+ if ((style & SWT.BAR) != 0) {
+ if (this == parent.menuBar) OS.DrawMenuBar (parent.handle);
+ return;
+ }
+ boolean hasCheck = false, hasImage = false;
+ MenuItem [] items = getItems ();
+ for (int i=0; i<items.length; i++) {
+ MenuItem item = items [i];
+ if (item.image != null) {
+ if ((hasImage = true) && hasCheck) break;
+ }
+ if ((item.style & (SWT.CHECK | SWT.RADIO)) != 0) {
+ if ((hasCheck = true) && hasImage) break;
+ }
+ }
+
+ /* Update the menu to hide or show the space for bitmaps */
+ MENUINFO lpcmi = new MENUINFO ();
+ lpcmi.cbSize = MENUINFO.sizeof;
+ lpcmi.fMask = OS.MIM_STYLE;
+ OS.GetMenuInfo (handle, lpcmi);
+ if (hasImage && !hasCheck) {
+ lpcmi.dwStyle |= OS.MNS_CHECKORBMP;
+ } else {
+ lpcmi.dwStyle &= ~OS.MNS_CHECKORBMP;
+ }
+ OS.SetMenuInfo (handle, lpcmi);
+}
+
+void updateBackground () {
+ if (hBrush != 0) OS.DeleteObject (hBrush);
+ hBrush = 0;
+ if (backgroundImage != null) {
+ hBrush = OS.CreatePatternBrush (backgroundImage.handle);
+ } else {
+ if (background != -1) hBrush = OS.CreateSolidBrush (background);
+ }
+ MENUINFO lpcmi = new MENUINFO ();
+ lpcmi.cbSize = MENUINFO.sizeof;
+ lpcmi.fMask = OS.MIM_BACKGROUND;
+ lpcmi.hbrBack = hBrush;
+ OS.SetMenuInfo (handle, lpcmi);
+}
+
+void updateForeground () {
+ MENUITEMINFO info = new MENUITEMINFO ();
+ info.cbSize = MENUITEMINFO.sizeof;
+ int index = 0;
+ while (OS.GetMenuItemInfo (handle, index, true, info)) {
+ info.fMask = OS.MIIM_BITMAP;
+ info.hbmpItem = OS.HBMMENU_CALLBACK;
+ OS.SetMenuItemInfo (handle, index, true, info);
+ index++;
+ }
+ redraw ();
+}
+
+LRESULT wmTimer (long wParam, long lParam) {
+ if (wParam == ID_TOOLTIP_TIMER) {
+ POINT pt = new POINT ();
+ OS.GetCursorPos (pt);
+ if (selectedMenuItem != null) {
+ RECT rect = new RECT ();
+ boolean success = OS.GetMenuItemRect (0, selectedMenuItem.parent.handle, selectedMenuItem.index, rect);
+ if (!success) return null;
+ if (OS.PtInRect (rect, pt)) {
+ // Mouse cursor is within the bounds of menu item
+ selectedMenuItem.showTooltip (pt.x, pt.y + OS.GetSystemMetrics(OS.SM_CYCURSOR) / 2 + 5);
+ } else {
+ /*
+ * Mouse cursor is outside the bounds of the menu item:
+ * Keyboard or mnemonic was used to select menu item
+ */
+ selectedMenuItem.showTooltip ((rect.right + rect.left) / 2, rect.bottom + 5);
+ }
+ }
+ }
+
+ return null;
+}
+}
Code Review / simantics / platform.git / blobdiff