| /******************************************************************************* |
| * Copyright (c) 2000, 2004 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.carbon.FontInfo; |
| import org.eclipse.swt.internal.carbon.GDevice; |
| import org.eclipse.swt.internal.carbon.OS; |
| import org.eclipse.swt.internal.carbon.MenuTrackingData; |
| import org.eclipse.swt.internal.carbon.Rect; |
| |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.events.*; |
| import org.eclipse.swt.graphics.*; |
| |
| /** |
| * 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> |
| */ |
| 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> |
| */ |
| int handle; |
| short id; |
| int x, y; |
| // int width, height; |
| boolean hasLocation, modified, closed; |
| MenuItem [] items; |
| MenuItem cascade, defaultItem, lastTarget; |
| Decorations parent; |
| |
| /** |
| * 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. |
| * |
| * @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> |
| * |
| * @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 Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public Menu (Decorations parent, int style) { |
| super (parent, checkStyle (style)); |
| this.parent = parent; |
| createWidget (); |
| } |
| |
| /** |
| * 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. |
| * |
| * @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. |
| * |
| * @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); |
| } |
| |
| 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 _setVisible (boolean visible) { |
| if ((style & (SWT.BAR | SWT.DROP_DOWN)) != 0) return; |
| if (!visible) return; |
| int left = 0, top = 0; |
| org.eclipse.swt.internal.carbon.Point where = new org.eclipse.swt.internal.carbon.Point (); |
| OS.GetGlobalMouse (where); |
| if (hasLocation) { |
| left = x; |
| top = y; |
| } else { |
| left = where.h; |
| top = where.v; |
| } |
| /* |
| * Feature in the Macintosh. PopUpMenuSelect() does not position |
| * the menu at the specified coordinates. The x coordinate is honoured, |
| * but the top of the menu is placed a few pixels above the y coordinate. |
| * This means that the first item in the menu will be under the mouse |
| * and will draw selected. This is against the Macintosh User Guidelines. |
| * The fix is to offset the menu by one pixel in both directions when |
| * it coincides with the mouse location. |
| */ |
| if (left == where.h) left++; |
| if (top == where.v) top++; |
| OS.PopUpMenuSelect (handle, (short)top, (short)left, (short)-1); |
| } |
| |
| /** |
| * 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); |
| } |
| |
| void createHandle () { |
| display.addMenu (this); |
| int outMenuRef [] = new int [1]; |
| OS.CreateNewMenu (id, 0, outMenuRef); |
| if (outMenuRef [0] == 0) { |
| display.removeMenu (this); |
| error (SWT.ERROR_NO_HANDLES); |
| } |
| handle = outMenuRef [0]; |
| } |
| |
| void createItem (MenuItem item, int index) { |
| checkWidget (); |
| int count = OS.CountMenuItems (handle); |
| if (!(0 <= index && index <= count)) error (SWT.ERROR_INVALID_RANGE); |
| int attributes = OS.kMenuItemAttrAutoRepeat | OS.kMenuItemAttrCustomDraw; |
| if ((item.style & SWT.SEPARATOR) != 0) attributes = OS.kMenuItemAttrSeparator; |
| int result = OS.InsertMenuItemTextWithCFString (handle, 0, (short) index, attributes, 0); |
| if (result != OS.noErr) { |
| error (SWT.ERROR_ITEM_NOT_ADDED); |
| } |
| if (count == items.length) { |
| MenuItem [] newItems = new MenuItem [items.length + 4]; |
| System.arraycopy (items, 0, newItems, 0, items.length); |
| items = newItems; |
| } |
| System.arraycopy (items, index, items, index + 1, count - index); |
| items [index] = item; |
| modified = true; |
| int emptyMenu = item.createEmptyMenu (); |
| if (emptyMenu != 0) OS.SetMenuItemHierarchicalMenu (handle, (short) (index + 1), emptyMenu); |
| } |
| |
| void createWidget () { |
| checkOrientation (parent); |
| super.createWidget (); |
| items = new MenuItem [4]; |
| } |
| |
| void destroyItem (MenuItem item) { |
| int count = OS.CountMenuItems (handle); |
| int index = 0; |
| while (index < count) { |
| if (items [index] == item) break; |
| index++; |
| } |
| if (index == count) return; |
| System.arraycopy (items, index + 1, items, index, --count - index); |
| items [count] = null; |
| if (count == 0) items = new MenuItem [4]; |
| if (item.menu == null) item.destroyEmptyMenu (index); |
| modified = true; |
| OS.DeleteMenuItem (handle, (short) (index + 1)); |
| } |
| |
| void destroyWidget () { |
| int theMenu = handle; |
| releaseHandle (); |
| if (theMenu != 0) { |
| OS.DeleteMenu (OS.GetMenuID (theMenu)); |
| OS.DisposeMenu (theMenu); |
| } |
| } |
| |
| /*public*/ Rectangle getBounds () { |
| checkWidget (); |
| if ((style & SWT.BAR) != 0) { |
| Menu menu = display.getMenuBar (); |
| if (this != menu) return new Rectangle (0, 0, 0, 0); |
| int height = OS.GetMBarHeight (); |
| int gdevice = OS.GetMainDevice (); |
| int [] ptr = new int [1]; |
| OS.memcpy (ptr, gdevice, 4); |
| GDevice device = new GDevice (); |
| OS.memcpy (device, ptr [0], GDevice.sizeof); |
| return new Rectangle (0, 0, device.right - device.left, height); |
| } |
| OS.CalcMenuSize (handle); |
| return new Rectangle (x, y, 0, 0); |
| // return new Rectangle (x, y, width, height); |
| } |
| |
| /** |
| * 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(); |
| return defaultItem; |
| } |
| |
| /** |
| * 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 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 count = OS.CountMenuItems (handle); |
| if (!(0 <= index && index < count)) error (SWT.ERROR_INVALID_RANGE); |
| return items [index]; |
| } |
| |
| /** |
| * 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.CountMenuItems (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 count = OS.CountMenuItems (handle); |
| MenuItem [] result = new MenuItem [count]; |
| System.arraycopy (items, 0, result, 0, count); |
| return result; |
| } |
| |
| 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 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; |
| } |
| } |
| MenuTrackingData outData = new MenuTrackingData (); |
| return OS.GetMenuTrackingData (handle, outData) == OS.noErr; |
| } |
| |
| void hookEvents () { |
| super.hookEvents (); |
| int menuProc = display.menuProc; |
| int [] mask = new int [] { |
| OS.kEventClassMenu, OS.kEventMenuCalculateSize, |
| OS.kEventClassMenu, OS.kEventMenuClosed, |
| OS.kEventClassMenu, OS.kEventMenuCreateFrameView, |
| OS.kEventClassMenu, OS.kEventMenuDrawItem, |
| OS.kEventClassMenu, OS.kEventMenuDrawItemContent, |
| OS.kEventClassMenu, OS.kEventMenuMeasureItemWidth, |
| OS.kEventClassMenu, OS.kEventMenuOpening, |
| OS.kEventClassMenu, OS.kEventMenuTargetItem, |
| }; |
| int menuTarget = OS.GetMenuEventTarget (handle); |
| OS.InstallEventHandler (menuTarget, menuProc, mask.length / 2, mask, handle, null); |
| } |
| |
| int kEventMenuCalculateSize (int nextHandler, int theEvent, int userData) { |
| int result = super.kEventMenuCalculateSize (nextHandler, theEvent, userData); |
| if (result == OS.noErr) return result; |
| int [] theControl = new int [1]; |
| OS.GetEventParameter (theEvent, OS.kEventParamControlRef, OS.typeControlRef, null, 4, null, theControl); |
| int menuProc = display.menuProc; |
| int [] mask = new int [] { |
| OS.kEventClassMenu, OS.kEventMenuGetFrameBounds, |
| }; |
| int controlTarget = OS.GetControlEventTarget (theControl [0]); |
| //TODO - installed multi-times, does this matter? |
| OS.InstallEventHandler (controlTarget, menuProc, mask.length / 2, mask, handle, null); |
| return result; |
| } |
| |
| int kEventMenuClosed (int nextHandler, int theEvent, int userData) { |
| int result = super.kEventMenuClosed (nextHandler, theEvent, userData); |
| if (result == OS.noErr) return result; |
| closed = true; |
| // width = height = 0; |
| // int count = OS.CountMenuItems (handle); |
| // for (int i=0; i<count; i++) { |
| // MenuItem item = items [i]; |
| // item.x = item.y = item.width = item.height = 0; |
| // } |
| sendEvent (SWT.Hide); |
| if (hooks (SWT.Hide)) { |
| getShell().update (true); |
| } |
| return OS.eventNotHandledErr; |
| } |
| |
| int kEventMenuCreateFrameView (int nextHandler, int theEvent, int userData) { |
| int result = super.kEventMenuCreateFrameView (nextHandler, theEvent, userData); |
| if (result == OS.noErr) return result; |
| int [] theControl = new int [1]; |
| OS.GetEventParameter (theEvent, OS.kEventParamControlRef, OS.typeControlRef, null, 4, null, theControl); |
| int menuProc = display.menuProc; |
| int [] mask = new int [] { |
| OS.kEventClassMenu, OS.kEventMenuGetFrameBounds, |
| }; |
| int controlTarget = OS.GetControlEventTarget (theControl [0]); |
| OS.InstallEventHandler (controlTarget, menuProc, mask.length / 2, mask, handle, null); |
| return OS.eventNotHandledErr; |
| } |
| |
| int kEventMenuDrawItem (int nextHandler, int theEvent, int userData) { |
| int result = super.kEventMenuDrawItem (nextHandler, theEvent, userData); |
| if (result == OS.noErr) return result; |
| // short [] index = new short [1]; |
| // OS.GetEventParameter (theEvent, OS.kEventParamMenuItemIndex, OS.typeMenuItemIndex, null, 2, null, index); |
| // MenuItem item = items [index [0] - 1]; |
| // Rect rect = new Rect (); |
| // OS.GetEventParameter (theEvent, OS.kEventParamMenuItemBounds, OS.typeQDRectangle, null, Rect.sizeof, null, rect); |
| // item.x = rect.left - x; |
| // item.y = rect.top - y; |
| // item.width = rect.right - rect.left; |
| // item.height = rect.bottom - rect.top; |
| return OS.eventNotHandledErr; |
| } |
| |
| int kEventMenuDrawItemContent (int nextHandler, int theEvent, int userData) { |
| int result = super.kEventMenuDrawItemContent (nextHandler, theEvent, userData); |
| if (result == OS.noErr) return result; |
| short [] index = new short [1]; |
| OS.GetEventParameter (theEvent, OS.kEventParamMenuItemIndex, OS.typeMenuItemIndex, null, 2, null, index); |
| MenuItem item = items [index [0] - 1]; |
| if (item.accelerator == 0) { |
| int accelIndex = item.text.indexOf ('\t'); |
| if (accelIndex != -1) { |
| String accelText = item.text.substring (accelIndex + 1); |
| int length = accelText.length (); |
| if (length != 0) { |
| result = OS.CallNextEventHandler (nextHandler, theEvent); |
| Rect rect = new Rect (); |
| OS.GetEventParameter (theEvent, OS.kEventParamMenuItemBounds, OS.typeQDRectangle, null, Rect.sizeof, null, rect); |
| int [] context = new int [1]; |
| OS.GetEventParameter (theEvent, OS.kEventParamCGContextRef, OS.typeCGContextRef, null, 4, null, context); |
| |
| /* Draw the key */ |
| int modifierIndex = modifierIndex (accelText); |
| char [] buffer = new char [length - modifierIndex - 1]; |
| accelText.getChars (modifierIndex + 1, length, buffer, 0); |
| int font = OS.kThemeMenuItemFont; |
| if (buffer.length > 1) font = OS.kThemeMenuItemCmdKeyFont; |
| byte [] family = new byte [256]; |
| short [] size = new short [1]; |
| byte [] style = new byte [1]; |
| OS.GetThemeFont ((short) font, (short) OS.smSystemScript, family, size, style); |
| FontInfo info = new FontInfo (); |
| OS.FetchFontInfo (family[0], size[0], style[0], info); |
| int [] metric = new int [1]; |
| OS.GetThemeMetric (OS.kThemeMetricMenuIconTrailingEdgeMargin, metric); |
| int str = OS.CFStringCreateWithCharacters (OS.kCFAllocatorDefault, buffer, buffer.length); |
| org.eclipse.swt.internal.carbon.Point size1 = new org.eclipse.swt.internal.carbon.Point (); |
| OS.GetThemeTextDimensions (str, (short) font, 0, false, size1, null); |
| rect.left = (short) (rect.right - Math.max (info.widMax, size1.h) - metric [0]); |
| OS.DrawThemeTextBox (str, (short) font, OS.kThemeStateActive, false, rect, (short) OS.teFlushLeft, context [0]); |
| OS.CFRelease (str); |
| |
| /* Draw the modifiers */ |
| if (modifierIndex != -1) { |
| buffer = new char [modifierIndex + 1]; |
| accelText.getChars (0, buffer.length, buffer, 0); |
| str = OS.CFStringCreateWithCharacters (OS.kCFAllocatorDefault, buffer, buffer.length); |
| OS.GetThemeTextDimensions (str, (short) OS.kThemeMenuItemCmdKeyFont, 0, false, size1, null); |
| rect.right = rect.left; |
| rect.left = (short) (rect.right - size1.h); |
| OS.DrawThemeTextBox (str, (short) OS.kThemeMenuItemCmdKeyFont, OS.kThemeStateActive, false, rect, (short) OS.teFlushLeft, context [0]); |
| OS.CFRelease (str); |
| } |
| return result; |
| } |
| } |
| } |
| return OS.eventNotHandledErr; |
| } |
| |
| int kEventMenuGetFrameBounds (int nextHandler, int theEvent, int userData) { |
| int result = super.kEventMenuGetFrameBounds (nextHandler, theEvent, userData); |
| if (result == OS.noErr) return result; |
| result = OS.CallNextEventHandler (nextHandler, theEvent); |
| // CGRect rect = new CGRect (); |
| // OS.GetEventParameter (theEvent, OS.kEventParamBounds, OS.typeHIRect, null, CGRect.sizeof, null, rect); |
| // x = (int) rect.x; |
| // y = (int) rect.y; |
| // width = (int) rect.width; |
| // height = (int) rect.height; |
| // if (cascade != null) { |
| // OS.GetEventParameter (theEvent, OS.kEventParamMenuItemBounds, OS.typeHIRect, null, CGRect.sizeof, null, rect); |
| // cascade.x = (int) rect.x - x; |
| // cascade.y = (int) rect.y - y; |
| // cascade.width = (int) rect.width; |
| // cascade.height = (int) rect.height; |
| // } |
| return result; |
| } |
| |
| int kEventMenuMeasureItemWidth (int nextHandler, int theEvent, int userData) { |
| int result = super.kEventMenuMeasureItemWidth (nextHandler, theEvent, userData); |
| if (result == OS.noErr) return result; |
| short [] index = new short [1]; |
| OS.GetEventParameter (theEvent, OS.kEventParamMenuItemIndex, OS.typeMenuItemIndex, null, 2, null, index); |
| MenuItem item = items [index [0] - 1]; |
| if (item.accelerator == 0) { |
| int accelIndex = item.text.indexOf ('\t'); |
| if (accelIndex != -1) { |
| String accelText = item.text.substring (accelIndex + 1); |
| if (accelText.length () != 0) { |
| result = OS.CallNextEventHandler (nextHandler, theEvent); |
| char [] buffer = new char [accelText.length ()]; |
| accelText.getChars (0, buffer.length, buffer, 0); |
| int str = OS.CFStringCreateWithCharacters (OS.kCFAllocatorDefault, buffer, buffer.length); |
| org.eclipse.swt.internal.carbon.Point size = new org.eclipse.swt.internal.carbon.Point (); |
| OS.GetThemeTextDimensions (str, (short) OS.kThemeMenuItemCmdKeyFont, 0, false, size, null); |
| OS.CFRelease (str); |
| short [] width = new short [1]; |
| OS.GetEventParameter (theEvent, OS.kEventParamMenuItemWidth, OS.typeSInt16, null, 2, null, width); |
| int [] metric = new int [1]; |
| OS.GetThemeMetric (OS.kThemeMetricMenuTextTrailingEdgeMargin, metric); |
| width [0] += metric [0] + size.h; |
| OS.SetEventParameter (theEvent, OS.kEventParamMenuItemWidth, OS.typeSInt16, 2, width); |
| return result; |
| } |
| } |
| } |
| return OS.eventNotHandledErr; |
| } |
| |
| int kEventMenuOpening (int nextHandler, int theEvent, int userData) { |
| int result = super.kEventMenuOpening (nextHandler, theEvent, userData); |
| if (result == OS.noErr) return result; |
| closed = false; |
| sendEvent (SWT.Show); |
| modified = false; |
| if (hooks (SWT.Show)) { |
| getShell().update (true); |
| } |
| return OS.eventNotHandledErr; |
| } |
| |
| int kEventMenuTargetItem (int nextHandler, int theEvent, int userData) { |
| int result = super.kEventMenuTargetItem (nextHandler, theEvent, userData); |
| if (result == OS.noErr) return result; |
| lastTarget = null; |
| short [] index = new short [1]; |
| if (OS.GetEventParameter (theEvent, OS.kEventParamMenuItemIndex, OS.typeMenuItemIndex, null, 2, null, index) == OS.noErr) { |
| if (index [0] > 0) lastTarget = items [index [0] - 1]; |
| if (lastTarget != null) { |
| lastTarget.sendEvent (SWT.Arm); |
| if (lastTarget.hooks (SWT.Arm)) { |
| getShell().update (true); |
| } |
| } |
| } |
| return OS.eventNotHandledErr; |
| } |
| |
| /** |
| * 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 string is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public int indexOf (MenuItem item) { |
| checkWidget (); |
| if (item == null) error (SWT.ERROR_NULL_ARGUMENT); |
| int count = OS.CountMenuItems (handle); |
| for (int i=0; i<count; i++) { |
| if (items [i] == item) return i; |
| } |
| 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 (); |
| 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 (); |
| } |
| |
| int modifierIndex (String accelText) { |
| int start = accelText.length () - 1; |
| int index = start; |
| while (index >= 0) { |
| char c = accelText.charAt (index); |
| switch (c) { |
| case ' ': |
| if (index != start) return index; |
| break; |
| case '\u2303': |
| case '\u2325': |
| case '\u21E7': |
| case '\u2318': |
| return index; |
| } |
| index--; |
| } |
| return -1; |
| } |
| |
| void releaseChild () { |
| super.releaseChild (); |
| if (cascade != null) cascade.setMenu (null); |
| if ((style & SWT.BAR) != 0 && this == parent.menuBar) { |
| parent.setMenuBar (null); |
| } |
| } |
| |
| void releaseHandle () { |
| super.releaseHandle (); |
| handle = 0; |
| } |
| |
| void releaseWidget () { |
| int count = OS.CountMenuItems (handle); |
| for (int i=0; i<count; i++) { |
| MenuItem item = items [i]; |
| if (!item.isDisposed ()) item.releaseResources (); |
| } |
| items = null; |
| super.releaseWidget (); |
| display.removeMenu (this); |
| parent = null; |
| cascade = defaultItem = lastTarget = 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); |
| } |
| |
| /** |
| * 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(); |
| if (item != null && item.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT); |
| defaultItem = item; |
| } |
| |
| /** |
| * 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(); |
| if (enabled) { |
| state &= ~DISABLED; |
| OS.EnableMenuItem (handle, (short)0); |
| } else { |
| state |= DISABLED; |
| OS.DisableMenuItem (handle, (short)0); |
| } |
| } |
| |
| /** |
| * 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 (); |
| 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); |
| } |
| |
| /** |
| * 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); |
| } |
| } |
| |
| } |