| /******************************************************************************* |
| * Copyright (c) 2000, 2012 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 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 /*int*/ handle; |
| |
| int x, y; |
| long /*int*/ hBrush, hwndCB; |
| int id0, id1; |
| int foreground = -1, background = -1; |
| Image backgroundImage; |
| boolean hasLocation; |
| MenuItem cascade; |
| Decorations parent; |
| ImageList imageList; |
| |
| /* Resource ID for SHMENUBARINFO */ |
| static final int ID_PPC = 100; |
| |
| /* SmartPhone SoftKeyBar resource ids */ |
| static final int ID_SPMM = 102; |
| static final int ID_SPBM = 103; |
| static final int ID_SPMB = 104; |
| static final int ID_SPBB = 105; |
| static final int ID_SPSOFTKEY0 = 106; |
| static final int ID_SPSOFTKEY1 = 107; |
| |
| /** |
| * 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 /*int*/ 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 /*int*/ 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; |
| /* |
| * 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); |
| if (!success && 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 /*int*/ 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) { |
| if (OS.IsPPC) { |
| long /*int*/ hwndShell = parent.handle; |
| SHMENUBARINFO mbi = new SHMENUBARINFO (); |
| mbi.cbSize = SHMENUBARINFO.sizeof; |
| mbi.hwndParent = hwndShell; |
| mbi.dwFlags = OS.SHCMBF_HIDDEN; |
| mbi.nToolBarId = ID_PPC; |
| mbi.hInstRes = OS.GetLibraryHandle (); |
| boolean success = OS.SHCreateMenuBar (mbi); |
| hwndCB = mbi.hwndMB; |
| if (!success) error (SWT.ERROR_NO_HANDLES); |
| /* Remove the item from the resource file */ |
| OS.SendMessage (hwndCB, OS.TB_DELETEBUTTON, 0, 0); |
| return; |
| } |
| /* |
| * Note in WinCE SmartPhone. The SoftBar contains only 2 items. |
| * An item can either be a menu or a button. |
| * SWT.BAR: creates a SoftBar with 2 menus |
| * SWT.BAR | SWT.BUTTON1: creates a SoftBar with 1 button |
| * for button1, and a menu for button2 |
| * SWT.BAR | SWT.BUTTON1 | SWT.BUTTON2: creates a SoftBar with |
| * 2 buttons |
| */ |
| if (OS.IsSP) { |
| /* Determine type of menubar */ |
| int nToolBarId; |
| if ((style & SWT.BUTTON1) != 0) { |
| nToolBarId = ((style & SWT.BUTTON2) != 0) ? ID_SPBB : ID_SPBM; |
| } else { |
| nToolBarId = ((style & SWT.BUTTON2) != 0) ? ID_SPMB : ID_SPMM; |
| } |
| |
| /* Create SHMENUBAR */ |
| SHMENUBARINFO mbi = new SHMENUBARINFO (); |
| mbi.cbSize = SHMENUBARINFO.sizeof; |
| mbi.hwndParent = parent.handle; |
| mbi.dwFlags = OS.SHCMBF_HIDDEN; |
| mbi.nToolBarId = nToolBarId; /* as defined in .rc file */ |
| mbi.hInstRes = OS.GetLibraryHandle (); |
| if (!OS.SHCreateMenuBar (mbi)) error (SWT.ERROR_NO_HANDLES); |
| hwndCB = mbi.hwndMB; |
| |
| /* |
| * Feature on WinCE SmartPhone. The SHCMBF_HIDDEN flag causes the |
| * SHMENUBAR to not be drawn. However the keyboard events still go |
| * through it. The workaround is to also hide the SHMENUBAR with |
| * ShowWindow (). |
| */ |
| OS.ShowWindow (hwndCB, OS.SW_HIDE); |
| |
| TBBUTTONINFO info = new TBBUTTONINFO (); |
| info.cbSize = TBBUTTONINFO.sizeof; |
| info.dwMask = OS.TBIF_COMMAND; |
| MenuItem item; |
| |
| /* Set first item */ |
| if (nToolBarId == ID_SPMM || nToolBarId == ID_SPMB) { |
| long /*int*/ hMenu = OS.SendMessage (hwndCB, OS.SHCMBM_GETSUBMENU, 0, ID_SPSOFTKEY0); |
| /* Remove the item from the resource file */ |
| OS.RemoveMenu (hMenu, 0, OS.MF_BYPOSITION); |
| Menu menu = new Menu (parent, SWT.DROP_DOWN, hMenu); |
| item = new MenuItem (this, menu, SWT.CASCADE, 0); |
| } else { |
| item = new MenuItem (this, null, SWT.PUSH, 0); |
| } |
| info.idCommand = id0 = item.id; |
| OS.SendMessage (hwndCB, OS.TB_SETBUTTONINFO, ID_SPSOFTKEY0, info); |
| |
| /* Set second item */ |
| if (nToolBarId == ID_SPMM || nToolBarId == ID_SPBM) { |
| long /*int*/ hMenu = OS.SendMessage (hwndCB, OS.SHCMBM_GETSUBMENU, 0, ID_SPSOFTKEY1); |
| OS.RemoveMenu (hMenu, 0, OS.MF_BYPOSITION); |
| Menu menu = new Menu (parent, SWT.DROP_DOWN, hMenu); |
| item = new MenuItem (this, menu, SWT.CASCADE, 1); |
| } else { |
| item = new MenuItem (this, null, SWT.PUSH, 1); |
| } |
| info.idCommand = id1 = item.id; |
| OS.SendMessage (hwndCB, OS.TB_SETBUTTONINFO, ID_SPSOFTKEY1, info); |
| |
| /* |
| * Override the Back key. For some reason, the owner of the menubar |
| * must be a Dialog or it won't receive the WM_HOTKEY message. As |
| * a result, Shell on WinCE SP must use the class Dialog. |
| */ |
| int dwMask = OS.SHMBOF_NODEFAULT | OS.SHMBOF_NOTIFY; |
| long /*int*/ lParam = OS.MAKELPARAM (dwMask, dwMask); |
| OS.SendMessage (hwndCB, OS.SHCMBM_OVERRIDEKEY, OS.VK_ESCAPE, lParam); |
| return; |
| } |
| handle = OS.CreateMenu (); |
| if (handle == 0) error (SWT.ERROR_NO_HANDLES); |
| if (OS.IsHPC) { |
| long /*int*/ hwndShell = parent.handle; |
| hwndCB = OS.CommandBar_Create (OS.GetModuleHandle (null), hwndShell, 1); |
| if (hwndCB == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.CommandBar_Show (hwndCB, false); |
| OS.CommandBar_InsertMenubarEx (hwndCB, 0, handle, 0); |
| /* |
| * The command bar hosts the 'close' button when the window does not |
| * have a caption. |
| */ |
| if ((parent.style & SWT.CLOSE) != 0 && (parent.style & SWT.TITLE) == 0) { |
| OS.CommandBar_AddAdornments (hwndCB, 0, 0); |
| } |
| } |
| } else { |
| handle = OS.CreatePopupMenu (); |
| if (handle == 0) error (SWT.ERROR_NO_HANDLES); |
| } |
| } |
| |
| void createItem (MenuItem item, int index) { |
| int count = GetMenuItemCount (handle); |
| if (!(0 <= index && index <= count)) error (SWT.ERROR_INVALID_RANGE); |
| display.addMenuItem (item); |
| boolean success = false; |
| if ((OS.IsPPC || OS.IsSP) && hwndCB != 0) { |
| if (OS.IsSP) return; |
| TBBUTTON lpButton = new TBBUTTON (); |
| lpButton.idCommand = item.id; |
| lpButton.fsStyle = (byte) OS.TBSTYLE_AUTOSIZE; |
| if ((item.style & SWT.CASCADE) != 0) lpButton.fsStyle |= OS.TBSTYLE_DROPDOWN | 0x80; |
| if ((item.style & SWT.SEPARATOR) != 0) lpButton.fsStyle = (byte) OS.BTNS_SEP; |
| lpButton.fsState = (byte) OS.TBSTATE_ENABLED; |
| lpButton.iBitmap = OS.I_IMAGENONE; |
| success = OS.SendMessage (hwndCB, OS.TB_INSERTBUTTON, index, lpButton) != 0; |
| } else { |
| if (OS.IsWinCE) { |
| int uFlags = OS.MF_BYPOSITION; |
| TCHAR lpNewItem = null; |
| if ((item.style & SWT.SEPARATOR) != 0) { |
| uFlags |= OS.MF_SEPARATOR; |
| } else { |
| lpNewItem = new TCHAR (0, " ", true); |
| } |
| success = OS.InsertMenu (handle, index, uFlags, item.id, lpNewItem); |
| if (success) { |
| MENUITEMINFO info = new MENUITEMINFO (); |
| info.cbSize = MENUITEMINFO.sizeof; |
| info.fMask = OS.MIIM_DATA; |
| info.dwItemData = item.id; |
| success = OS.SetMenuItemInfo (handle, index, true, info); |
| } |
| } else { |
| /* |
| * 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 /*int*/ hHeap = OS.GetProcessHeap (); |
| TCHAR buffer = new TCHAR (0, " ", true); |
| int byteCount = buffer.length () * TCHAR.sizeof; |
| long /*int*/ pszText = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); |
| OS.MoveMemory (pszText, buffer, byteCount); |
| 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; |
| 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.IsWinCE) { |
| if ((OS.IsPPC || OS.IsSP) && hwndCB != 0) { |
| if (OS.IsSP) { |
| redraw(); |
| return; |
| } |
| int index = (int)/*64*/OS.SendMessage (hwndCB, OS.TB_COMMANDTOINDEX, item.id, 0); |
| if (OS.SendMessage (hwndCB, OS.TB_DELETEBUTTON, index, 0) == 0) { |
| error (SWT.ERROR_ITEM_NOT_REMOVED); |
| } |
| int count = (int)/*64*/OS.SendMessage (hwndCB, OS.TB_BUTTONCOUNT, 0, 0); |
| if (count == 0) { |
| if (imageList != null) { |
| OS.SendMessage (handle, OS.TB_SETIMAGELIST, 0, 0); |
| display.releaseImageList (imageList); |
| imageList = null; |
| } |
| } |
| } else { |
| 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) break; |
| index++; |
| } |
| if (info.dwItemData != item.id) { |
| error (SWT.ERROR_ITEM_NOT_REMOVED); |
| } |
| if (!OS.DeleteMenu (handle, index, OS.MF_BYPOSITION)) { |
| error (SWT.ERROR_ITEM_NOT_REMOVED); |
| } |
| } |
| } else { |
| if (!OS.DeleteMenu (handle, item.id, OS.MF_BYCOMMAND)) { |
| error (SWT.ERROR_ITEM_NOT_REMOVED); |
| } |
| } |
| redraw (); |
| } |
| |
| void destroyWidget () { |
| MenuItem cascade = this.cascade; |
| long /*int*/ hMenu = handle, hCB = hwndCB; |
| releaseHandle (); |
| if (OS.IsWinCE && hCB != 0) { |
| OS.CommandBar_Destroy (hCB); |
| } else { |
| if (cascade != null) { |
| if (!OS.IsSP) cascade.setMenu (null, true); |
| } else { |
| if (hMenu != 0) OS.DestroyMenu (hMenu); |
| } |
| } |
| } |
| |
| void fixMenus (Decorations newParent) { |
| 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 (OS.IsWinCE) return new Rectangle (0, 0, 0, 0); |
| if ((style & SWT.BAR) != 0) { |
| if (parent.menuBar != this) { |
| return new Rectangle (0, 0, 0, 0); |
| } |
| long /*int*/ 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 = 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. |
| * |
| * </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 getDefaultItem () { |
| checkWidget (); |
| if (OS.IsWinCE) return null; |
| 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; |
| if ((OS.IsPPC || OS.IsSP) && hwndCB != 0) { |
| if (OS.IsPPC) { |
| TBBUTTON lpButton = new TBBUTTON (); |
| long /*int*/ result = OS.SendMessage (hwndCB, OS.TB_GETBUTTON, index, lpButton); |
| if (result == 0) error (SWT.ERROR_CANNOT_GET_ITEM); |
| id = lpButton.idCommand; |
| } |
| if (OS.IsSP) { |
| if (!(0 <= index && index <= 1)) error (SWT.ERROR_CANNOT_GET_ITEM); |
| id = index == 0 ? id0 : id1; |
| } |
| } else { |
| 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)/*64*/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 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 (); |
| if ((OS.IsPPC || OS.IsSP) && hwndCB != 0) { |
| if (OS.IsSP) { |
| MenuItem [] result = new MenuItem [2]; |
| result[0] = display.getMenuItem (id0); |
| result[1] = display.getMenuItem (id1); |
| return result; |
| } |
| int count = (int)/*64*/OS.SendMessage (hwndCB, OS.TB_BUTTONCOUNT, 0, 0); |
| TBBUTTON lpButton = new TBBUTTON (); |
| MenuItem [] result = new MenuItem [count]; |
| for (int i=0; i<count; i++) { |
| OS.SendMessage (hwndCB, OS.TB_GETBUTTON, i, lpButton); |
| result [i] = display.getMenuItem (lpButton.idCommand); |
| } |
| return result; |
| } |
| int index = 0, count = 0; |
| int length = OS.IsWinCE ? 4 : 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)/*64*/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; |
| } |
| |
| int GetMenuItemCount (long /*int*/ handle) { |
| if (OS.IsWinCE) { |
| if ((OS.IsPPC || OS.IsSP) && hwndCB != 0) { |
| return OS.IsSP ? 2 : (int)/*64*/OS.SendMessage (hwndCB, OS.TB_BUTTONCOUNT, 0, 0); |
| } |
| int count = 0; |
| MENUITEMINFO info = new MENUITEMINFO (); |
| info.cbSize = MENUITEMINFO.sizeof; |
| while (OS.GetMenuItemInfo (handle, count, true, info)) count++; |
| return count; |
| } |
| return OS.GetMenuItemCount (handle); |
| } |
| |
| String getNameText () { |
| String result = ""; |
| MenuItem [] items = getItems (); |
| int length = items.length; |
| if (length > 0) { |
| for (int i=0; i<length-1; i++) { |
| result = result + items [i].getNameText() + ", "; |
| } |
| result = result + items [length-1].getNameText (); |
| } |
| 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. |
| * |
| * @return the receiver's shell |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #getParent |
| */ |
| public Shell getShell () { |
| checkWidget (); |
| return parent.getShell (); |
| } |
| |
| /** |
| * Returns <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; |
| } |
| |
| int imageIndex (Image image) { |
| if (hwndCB == 0 || image == null) return OS.I_IMAGENONE; |
| if (imageList == null) { |
| Rectangle bounds = image.getBounds (); |
| imageList = display.getImageList (style & SWT.RIGHT_TO_LEFT, bounds.width, bounds.height); |
| int index = imageList.add (image); |
| long /*int*/ hImageList = imageList.getHandle (); |
| OS.SendMessage (hwndCB, OS.TB_SETIMAGELIST, 0, hImageList); |
| return index; |
| } |
| int index = imageList.indexOf (image); |
| if (index == -1) { |
| index = imageList.add (image); |
| } else { |
| imageList.put (index, image); |
| } |
| return index; |
| } |
| |
| /** |
| * 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; |
| if ((OS.IsPPC || OS.IsSP) && hwndCB != 0) { |
| if (OS.IsPPC) { |
| return (int)/*64*/OS.SendMessage (hwndCB, OS.TB_COMMANDTOINDEX, item.id, 0); |
| } |
| if (OS.IsSP) { |
| if (item.id == id0) return 0; |
| if (item.id == id1) return 1; |
| 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 (); |
| } |
| } |
| |
| void releaseHandle () { |
| super.releaseHandle (); |
| handle = hwndCB = 0; |
| cascade = null; |
| } |
| |
| void releaseChildren (boolean destroy) { |
| MenuItem [] items = getItems (); |
| for (int i=0; i<items.length; i++) { |
| MenuItem item = items [i]; |
| if (item != null && !item.isDisposed ()) { |
| if (OS.IsPPC && hwndCB != 0) { |
| item.dispose (); |
| } else { |
| item.release (false); |
| } |
| } |
| } |
| super.releaseChildren (destroy); |
| } |
| |
| 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); |
| } |
| } |
| } |
| |
| void releaseWidget () { |
| super.releaseWidget (); |
| backgroundImage = null; |
| if (hBrush == 0) OS.DeleteObject (hBrush); |
| hBrush = 0; |
| if (OS.IsPPC && hwndCB != 0) { |
| if (imageList != null) { |
| OS.SendMessage (hwndCB, OS.TB_SETIMAGELIST, 0, 0); |
| display.releaseToolImageList (imageList); |
| imageList = null; |
| } |
| } |
| 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); |
| } |
| |
| 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; |
| } |
| if (OS.IsWinCE) return; |
| 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> |
| * Note that the platform window manager ultimately has control |
| * over the location of popup menus. |
| * </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 (); |
| 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); |
| setLocation (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) { |
| 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; |
| 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 (OS.IsPPC || OS.IsSP) return; |
| if (OS.IsHPC) { |
| /* |
| * Each time a menu has been modified, the command menu bar |
| * must be redrawn or it won't update properly. For example, |
| * a submenu will not drop down. |
| */ |
| Menu menuBar = parent.menuBar; |
| if (menuBar != null) { |
| Menu menu = this; |
| while (menu != null && menu != menuBar) { |
| menu = menu.getParentMenu (); |
| } |
| if (menu == menuBar) { |
| OS.CommandBar_DrawMenuBar (menuBar.hwndCB, 0); |
| OS.CommandBar_Show (menuBar.hwndCB, true); |
| } |
| } |
| return; |
| } |
| if (OS.IsWinCE) return; |
| if ((style & SWT.BAR) != 0) { |
| if (this == parent.menuBar) OS.DrawMenuBar (parent.handle); |
| return; |
| } |
| if (OS.WIN32_VERSION < OS.VERSION (4, 10)) { |
| 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; |
| } |
| } |
| |
| /* |
| * Bug in Windows. If a menu contains items that have |
| * images and can be checked, Windows does not include |
| * the width of the image and the width of the check when |
| * computing the width of the menu. When the longest item |
| * does not have an image, the label and the accelerator |
| * text can overlap. The fix is to use SetMenuItemInfo() |
| * to indicate that all items have a bitmap and then include |
| * the width of the widest bitmap in WM_MEASURECHILD. |
| * |
| * NOTE: This work around causes problems on Windows 98. |
| * Under certain circumstances that have yet to be isolated, |
| * some menus can become huge and blank. For now, do not |
| * run the code on Windows 98. |
| * |
| * NOTE: This work around doesn't run on Vista because |
| * WM_MEASURECHILD and WM_DRAWITEM cause Vista to lose |
| * the menu theme. |
| */ |
| if (!OS.IsWin95) { |
| if (OS.WIN32_VERSION < OS.VERSION (6, 0)) { |
| MENUITEMINFO info = new MENUITEMINFO (); |
| info.cbSize = MENUITEMINFO.sizeof; |
| info.fMask = OS.MIIM_BITMAP; |
| for (int i=0; i<items.length; i++) { |
| MenuItem item = items [i]; |
| if ((style & SWT.SEPARATOR) == 0) { |
| if (item.image == null || foreground != -1) { |
| info.hbmpItem = hasImage || foreground != -1 ? OS.HBMMENU_CALLBACK : 0; |
| OS.SetMenuItemInfo (handle, item.id, false, info); |
| } |
| } |
| } |
| } |
| } |
| |
| /* 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 () { |
| if (OS.WIN32_VERSION < OS.VERSION (4, 10)) return; |
| 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 (); |
| } |
| } |