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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/wpf/org/eclipse/swt/widgets/Menu.java')
| -rw-r--r-- | bundles/org.eclipse.swt/Eclipse SWT/wpf/org/eclipse/swt/widgets/Menu.java | 916 |
1 files changed, 0 insertions, 916 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/wpf/org/eclipse/swt/widgets/Menu.java b/bundles/org.eclipse.swt/Eclipse SWT/wpf/org/eclipse/swt/widgets/Menu.java deleted file mode 100644 index b6462e7c77..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/wpf/org/eclipse/swt/widgets/Menu.java +++ /dev/null @@ -1,916 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2009 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * IBM Corporation - initial API and implementation - *******************************************************************************/ -package org.eclipse.swt.widgets; - - -import org.eclipse.swt.internal.wpf.*; -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 { - int itemCount; - MenuItem cascade, selected; - 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. - * <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, int handle) { - super (parent, checkStyle (style)); - this.parent = parent; - this.handle = handle; - createWidget (); -} - -void _setVisible (boolean visible) { - if ((style & (SWT.BAR | SWT.DROP_DOWN)) != 0) return; - OS.ContextMenu_IsOpen (handle, visible); -} - -/** - * 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 () { - int bits = SWT.BAR | SWT.DROP_DOWN | SWT.POP_UP; - switch (style & bits) { - case SWT.BAR: - handle = OS.gcnew_Menu (); - if (handle == 0) SWT.error (SWT.ERROR_NO_HANDLES); - break; - case SWT.POP_UP: - handle = OS.gcnew_ContextMenu (); - if (handle == 0) SWT.error (SWT.ERROR_NO_HANDLES); - OS.ContextMenu_Placement (handle, OS.PlacementMode_MousePoint); - break; - case SWT.DROP_DOWN: - handle = OS.gcnew_CompositeCollection (); - if (handle == 0) SWT.error (SWT.ERROR_NO_HANDLES); - int defaultItem = OS.gcnew_MenuItem (); - OS.CompositeCollection_Insert (handle, 0, defaultItem); - OS.GCHandle_Free (defaultItem); - break; - } -} - -void createItem (MenuItem item, int index) { - if (!(0 <= index && index <= itemCount)) error (SWT.ERROR_INVALID_RANGE); - item.createWidget (); - if ((style & SWT.DROP_DOWN) != 0) { - if (itemCount == 0) OS.CompositeCollection_RemoveAt (handle, 0); - OS.CompositeCollection_Insert (handle, index, item.handle); - } else { - int items = OS.ItemsControl_Items (handle); - OS.ItemCollection_Insert (items, index, item.handle); - OS.GCHandle_Free (items); - } - itemCount++; -} - -void createWidget () { - checkOrientation (parent); - super.createWidget (); - parent.addMenu (this); -} - -void deregister () { - if ((style & SWT.DROP_DOWN) != 0) return; - display.removeWidget (handle); -} - -void destroyItem (MenuItem item) { - if ((style & SWT.DROP_DOWN) != 0) { - OS.CompositeCollection_Remove (handle, item.handle); - if (itemCount == 1) { - int defaultItem = OS.gcnew_MenuItem (); - OS.CompositeCollection_Insert (handle, 0, defaultItem); - OS.GCHandle_Free (defaultItem); - } - } else { - int items = OS.ItemsControl_Items (handle); - OS.ItemCollection_Remove (items, item.handle); - OS.GCHandle_Free (items); - } - itemCount--; -} - -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 a rectangle describing the receiver's size and location - * relative to its parent (or its display if its parent is null), - * unless the receiver is a menu or a shell. In this case, the - * location is relative to the display. - * <p> - * Note that the bounds of a menu or menu item are undefined when - * the menu is not visible. This is because most platforms compute - * the bounds of a menu dynamically just before it is displayed. - * </p> - * - * @return the receiver's bounding rectangle - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - * - * @since 3.1 - */ -/*public*/ Rectangle getBounds () { - checkWidget (); - if ((style & SWT.DROP_DOWN) != 0) return new Rectangle (0, 0, 0, 0); - if (!OS.UIElement_IsVisible (handle)) return new Rectangle (0, 0, 0, 0); - int point = OS.gcnew_Point (0, 0); - int location = OS.UIElement_TranslatePoint (handle, point, parent.handle); - int x = (int) OS.Point_X (location); - int y = (int) OS.Point_Y (location); - OS.GCHandle_Free (point); - OS.GCHandle_Free (location); - int width = (int) OS.FrameworkElement_ActualWidth (handle); - int height = (int) OS.FrameworkElement_ActualHeight (handle); - 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 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 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 (); - if (index < 0 || index >= itemCount) error(SWT.ERROR_INVALID_RANGE); - if ((style & SWT.DROP_DOWN) != 0) return getItem (handle, index); - int items = OS.ItemsControl_Items (handle); - MenuItem result = getItem (items, index); - OS.GCHandle_Free (items); - return result; -} - -MenuItem getItem (int items, int index) { - int item; - if ((style & SWT.DROP_DOWN) != 0) { - item = OS.IList_default (handle, index); - } else { - item = OS.ItemCollection_GetItemAt (items, index); - } - MenuItem result = (MenuItem) display.getWidget (item); - OS.GCHandle_Free (item); - return result; -} - -/** - * 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 itemCount; -} - -/** - * 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 (); - MenuItem [] result = new MenuItem [itemCount]; - int items = (style & SWT.DROP_DOWN) == 0 ? OS.ItemsControl_Items (handle) : handle; - for (int i = 0; i < itemCount; i++) { - result [i] = getItem (items, i); - } - if (items != handle) OS.GCHandle_Free (items); - 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; - } - } -// Shell shell = getShell (); -// Menu menu = shell.activeMenu; -// while (menu != null && menu != this) { -// menu = menu.getParentMenu (); -// } -// return this == menu; - return OS.UIElement_Visibility (handle) == OS.Visibility_Visible; -} - -void HandleClosed (int sender, int e) { - if (!checkEvent (e)) return; - sendEvent (SWT.Hide); -} - -void HandleOpened (int sender, int e) { - if (!checkEvent (e)) return; - sendEvent (SWT.Show); -} - -void hookEvents() { - super.hookEvents (); - if ((style & SWT.POP_UP) != 0) { - int handler = OS.gcnew_RoutedEventHandler (jniRef, "HandleClosed"); - OS.ContextMenu_Closed (handle, handler); - OS.GCHandle_Free (handler); - handler = OS.gcnew_RoutedEventHandler (jniRef, "HandleOpened"); - OS.ContextMenu_Opened (handle, handler); - OS.GCHandle_Free (handler); - } -} - -/** - * 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); - int index = -1; - if ((style & SWT.DROP_DOWN) != 0) { - index = OS.CompositeCollection_IndexOf (handle, item.handle); - } else { - int items = OS.ItemsControl_Items (handle); - index = OS.ItemCollection_IndexOf (items, item.handle); - OS.GCHandle_Free (items); - } - return index; -} - -/** - * 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 (); -} - -void register() { - if ((style & SWT.DROP_DOWN) != 0) return; - display.addWidget (handle, this); -} - -void releaseChildren (boolean destroy) { - MenuItem [] items = getItems (); - for (int i=0; i<items.length; i++) { - MenuItem item = items [i]; - if (item != null && !item.isDisposed ()) { - item.release (false); - } - } - super.releaseChildren (destroy); -} - -void releaseHandle () { - super.releaseHandle (); - if (handle != 0) OS.GCHandle_Free (handle); - handle = 0; - parent = null; -} - -void releaseParent () { - super.releaseParent (); - if (cascade != null) cascade.releaseMenu (); - if ((style & SWT.BAR) != 0) { - if (this == parent.menuBar) { - parent.setMenuBar (null); - } - } else { - if ((style & SWT.POP_UP) != 0) { - display.removePopup (this); - } - } -} - -void releaseWidget () { - super.releaseWidget (); - if (parent != null) parent.removeMenu (this); - parent = null; - cascade = 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 (); -} - -/** - * 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; - OS.ContextMenu_Placement (handle, OS.PlacementMode_AbsolutePoint); - OS.ContextMenu_HorizontalOffset (handle, x); - OS.ContextMenu_VerticalOffset (handle, y); -} - -/** - * 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) SWT.error (SWT.ERROR_NULL_ARGUMENT); - setLocation (location.x, location.y); -} - -void setNameScope() { - // DO NOTHING -} - -/** - * 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); - } -} - - -} |