| package org.eclipse.swt.widgets;
|
|
|
| /*
|
| * Copyright (c) 2000, 2002 IBM Corp. All rights reserved. |
| * This file is made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html
|
| */
|
|
|
| import org.eclipse.swt.internal.*;
|
| import org.eclipse.swt.internal.photon.*;
|
| import org.eclipse.swt.*;
|
| import org.eclipse.swt.graphics.*;
|
| import org.eclipse.swt.events.*;
|
|
|
| /** |
| * Instances of this class represent a selectable user interface object |
| * that issues notification when pressed and released. |
| * <dl> |
| * <dt><b>Styles:</b></dt> |
| * <dd>CHECK, CASCADE, PUSH, RADIO, SEPARATOR</dd> |
| * <dt><b>Events:</b></dt> |
| * <dd>Arm, Help, Selection</dd> |
| * </dl> |
| * <p> |
| * Note: Only one of the styles CHECK, CASCADE, PUSH, RADIO and SEPARATOR |
| * may be specified. |
| * </p><p> |
| * IMPORTANT: This class is <em>not</em> intended to be subclassed. |
| * </p> |
| */ |
| public class MenuItem extends Item {
|
| Menu parent, menu;
|
| int accelerator;
|
| boolean enabled = true;
|
|
|
| /** |
| * Constructs a new instance of this class given its parent |
| * (which must be a <code>Menu</code>) and a style value |
| * describing its behavior and appearance. The item is added |
| * to the end of the items maintained by its parent. |
| * <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 menu control which will be the parent of the new instance (cannot be null) |
| * @param style the style of control to construct |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
| * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
| * </ul> |
| * |
| * @see SWT#CHECK |
| * @see SWT#CASCADE |
| * @see SWT#PUSH |
| * @see SWT#RADIO |
| * @see SWT#SEPARATOR |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public MenuItem (Menu parent, int style) {
|
| this (parent, style, parent.getItemCount());
|
| }
|
|
|
| /** |
| * Constructs a new instance of this class given its parent |
| * (which must be a <code>Menu</code>), a style value |
| * describing its behavior and appearance, and the index |
| * at which to place it in the items maintained by its parent. |
| * <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 menu control which will be the parent of the new instance (cannot be null) |
| * @param style the style of control to construct |
| * @param index the index to store the receiver in its parent |
| * |
| * @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#CHECK |
| * @see SWT#CASCADE |
| * @see SWT#PUSH |
| * @see SWT#RADIO |
| * @see SWT#SEPARATOR |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public MenuItem (Menu parent, int style, int index) {
|
| super (parent, checkStyle (style));
|
| this.parent = parent;
|
| createWidget (index);
|
| }
|
|
|
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the arm events are generated for the control, by sending |
| * it one of the messages defined in the <code>ArmListener</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 ArmListener |
| * @see #removeArmListener |
| */ |
| public void addArmListener (ArmListener listener) {
|
| checkWidget();
|
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
|
| TypedListener typedListener = new TypedListener (listener);
|
| addListener (SWT.Arm, typedListener);
|
| }
|
|
|
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the 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 the control is selected, by sending |
| * it one of the messages defined in the <code>SelectionListener</code> |
| * interface. |
| * <p> |
| * When <code>widgetSelected</code> is called, the stateMask field of the event object is valid. |
| * <code>widgetDefaultSelected</code> is not called. |
| * </p> |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see SelectionListener |
| * @see #removeSelectionListener |
| * @see SelectionEvent |
| */ |
| public void addSelectionListener (SelectionListener listener) {
|
| checkWidget();
|
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
|
| TypedListener typedListener = new TypedListener(listener);
|
| addListener (SWT.Selection,typedListener);
|
| addListener (SWT.DefaultSelection,typedListener);
|
| }
|
|
|
| protected void checkSubclass () {
|
| if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS);
|
| }
|
|
|
| static int checkStyle (int style) {
|
| return checkBits (style, SWT.PUSH, SWT.CHECK, SWT.RADIO, SWT.SEPARATOR, SWT.CASCADE, 0);
|
| }
|
|
|
| void createHandle (int index) {
|
| state |= HANDLE;
|
| int count = parent.getItemCount();
|
| if (!(0 <= index && index <= count)) error (SWT.ERROR_INVALID_RANGE);
|
| int parentHandle = parent.handle;
|
| if ((style & SWT.SEPARATOR) != 0) {
|
| handle = OS.PtCreateWidget (OS.PtSeparator (), parentHandle, 0, null);
|
| } else if ((style & (SWT.CHECK | SWT.RADIO)) != 0) {
|
| int [] args = {
|
| OS.Pt_ARG_INDICATOR_TYPE, (style & SWT.CHECK) != 0 ? OS.Pt_N_OF_MANY : OS.Pt_ONE_OF_MANY, 0
|
| };
|
| handle = OS.PtCreateWidget (OS.PtToggleButton (), parentHandle, args.length / 3, args);
|
| } else {
|
| handle = OS.PtCreateWidget (OS.PtMenuButton (), parentHandle, 0, null);
|
| }
|
| if (handle == 0) error (SWT.ERROR_NO_HANDLES);
|
| if (index != count) {
|
| int i = 0;
|
| int child = OS.PtWidgetChildBack (parentHandle);
|
| /*
|
| * Feature in Photon. Menu bars have an extra widget which
|
| * is the parent of all menu items. PtValidParent() can not be
|
| * used, since it does not return that widget.
|
| */
|
| if (child != 0 && (parent.style & SWT.BAR) != 0) child = OS.PtWidgetChildBack (child);
|
| while (i != index && child != 0) {
|
| child = OS.PtWidgetBrotherInFront (child);
|
| i++;
|
| }
|
| OS.PtWidgetInsert (topHandle (), child, 1);
|
| }
|
| if (OS.PtWidgetIsRealized (parentHandle)) {
|
| OS.PtRealizeWidget (topHandle ());
|
| }
|
| }
|
|
|
| /** |
| * Return the widget accelerator. An accelerator is the bit-wise |
| * OR of zero or more modifier masks and a key. Examples: |
| * <code>SWT.CONTROL | SWT.SHIFT | 'T', SWT.ALT | SWT.F2</code>. |
| * |
| * @return the accelerator |
| * |
| * </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 getAccelerator () {
|
| checkWidget();
|
| return accelerator;
|
| }
|
|
|
| public Display getDisplay () {
|
| Menu parent = this.parent;
|
| if (parent == null) error (SWT.ERROR_WIDGET_DISPOSED);
|
| return parent.getDisplay ();
|
| }
|
|
|
| /** |
| * Returns <code>true</code> if the receiver is enabled, and |
| * <code>false</code> otherwise. A disabled control 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> |
| */ |
| public boolean getEnabled () {
|
| checkWidget ();
|
| /*
|
| * Bug in Photon. The Pt_BLOCKED flag of a menu item is cleared
|
| * when its parent menu is realized. The fix is to remember
|
| * the menu item state and reset it when the menu item is
|
| * realized.
|
| */
|
| // int topHandle = topHandle ();
|
| // return (OS.PtWidgetFlags (topHandle) & OS.Pt_BLOCKED) == 0;
|
| return enabled;
|
| }
|
|
|
| /** |
| * Returns the receiver's cascade menu if it has one or null |
| * if it does not. Only <code>CASCADE</code> menu items can have |
| * a pull down menu. The sequence of key strokes, button presses |
| * and/or button releases that are used to request a pull down |
| * menu is platform specific. |
| * |
| * @return the receiver's menu |
| * |
| * @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 getMenu () {
|
| checkWidget();
|
| return menu;
|
| }
|
|
|
| String getNameText () {
|
| if ((style & SWT.SEPARATOR) != 0) return "|";
|
| return super.getNameText ();
|
| }
|
|
|
| /** |
| * Returns the receiver's parent, which must be a <code>Menu</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 Menu getParent () {
|
| checkWidget();
|
| return parent;
|
| }
|
|
|
| /** |
| * Returns <code>true</code> if the receiver is selected, |
| * and false otherwise. |
| * <p> |
| * When the receiver is of type <code>CHECK</code> or <code>RADIO</code>, |
| * it is selected when it is checked. |
| * |
| * @return the selection 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 getSelection () {
|
| checkWidget();
|
| if ((style & (SWT.CHECK | SWT.RADIO | SWT.TOGGLE)) == 0) return false;
|
| return (OS.PtWidgetFlags (handle) & OS.Pt_SET) != 0;
|
| }
|
|
|
| void hookEvents () {
|
| if ((style & SWT.SEPARATOR) != 0) return;
|
| int windowProc = getDisplay ().windowProc;
|
| if ((style & SWT.CASCADE) != 0) {
|
| OS.PtAddCallback (handle, OS.Pt_CB_ARM, windowProc, SWT.Arm);
|
| }
|
| OS.PtAddCallback (handle, OS.Pt_CB_ACTIVATE, windowProc, SWT.Selection);
|
| if ((parent.style & SWT.BAR) == 0) {
|
| OS.PtAddCallback (handle, OS.Pt_CB_REALIZED, windowProc, SWT.Show);
|
| }
|
| }
|
|
|
| /**
|
| * 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 control 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 () {
|
| return getEnabled () && parent.isEnabled ();
|
| }
|
|
|
| int processActivate (int info) {
|
| showMenu ();
|
| return OS.Pt_CONTINUE;
|
| }
|
|
|
| int processSelection (int info) {
|
| if ((style & SWT.CASCADE) != 0 && menu != null) {
|
| return OS.Pt_CONTINUE;
|
| }
|
| Event event = new Event ();
|
| if (info != 0) {
|
| PtCallbackInfo_t cbinfo = new PtCallbackInfo_t ();
|
| OS.memmove (cbinfo, info, PtCallbackInfo_t.sizeof);
|
| if (cbinfo.event != 0) {
|
| PhEvent_t ev = new PhEvent_t ();
|
| OS.memmove (ev, cbinfo.event, PhEvent_t.sizeof);
|
| int data = OS.PhGetData (cbinfo.event);
|
| if (data != 0) {
|
| switch (ev.type) {
|
| case OS.Ph_EV_KEY:
|
| PhKeyEvent_t ke = new PhKeyEvent_t ();
|
| OS.memmove (ke, data, PhKeyEvent_t.sizeof);
|
| setKeyState (event, ke);
|
| break;
|
| case OS.Ph_EV_BUT_PRESS:
|
| case OS.Ph_EV_BUT_RELEASE:
|
| PhPointerEvent_t pe = new PhPointerEvent_t ();
|
| OS.memmove (pe, data, PhPointerEvent_t.sizeof);
|
| setMouseState (ev.type, event, pe);
|
| break;
|
| }
|
| }
|
| }
|
| }
|
| postEvent (SWT.Selection, event);
|
| return OS.Pt_CONTINUE;
|
| }
|
|
|
| int processShow (int info) {
|
| /*
|
| * Bug in Photon. The Pt_BLOCKED flag of a menu item is cleared
|
| * when its parent menu is realized. The fix is to remember
|
| * the menu item state and reset it when the menu item is
|
| * realized.
|
| */
|
| int topHandle = topHandle ();
|
| int flags = enabled ? 0 : OS.Pt_BLOCKED | OS.Pt_GHOST;
|
| OS.PtSetResource (handle, OS.Pt_ARG_FLAGS, flags, OS.Pt_BLOCKED | OS.Pt_GHOST);
|
| return OS.Pt_CONTINUE;
|
| }
|
|
|
| int processArm(int info) {
|
| postEvent (SWT.Arm);
|
| showMenu ();
|
| return OS.Pt_CONTINUE;
|
| }
|
|
|
| void releaseChild () {
|
| super.releaseChild ();
|
| if (menu != null) menu.dispose ();
|
| menu = null;
|
| }
|
|
|
| void releaseWidget () {
|
| if (menu != null && !menu.isDisposed ()) {
|
| menu.releaseWidget ();
|
| menu.releaseHandle ();
|
| }
|
| menu = null;
|
| super.releaseWidget ();
|
| if (accelerator != 0) removeAccelerator ();
|
| accelerator = 0;
|
| parent = null;
|
| }
|
|
|
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the arm events are generated for the control. |
| * |
| * @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 ArmListener |
| * @see #addArmListener |
| */ |
| public void removeArmListener (ArmListener listener) {
|
| checkWidget();
|
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
|
| if (eventTable == null) return;
|
| eventTable.unhook (SWT.Arm, listener);
|
| }
|
|
|
| /** |
| * 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 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);
|
| }
|
|
|
| void removeAccelerator () {
|
| if (accelerator == 0) return;
|
|
|
| int keyMods = 0;
|
| if ((accelerator & SWT.ALT) != 0) keyMods |= OS.Pk_KM_Alt;
|
| if ((accelerator & SWT.SHIFT) != 0) keyMods |= OS.Pk_KM_Shift;
|
| if ((accelerator & SWT.CONTROL) != 0) keyMods |= OS.Pk_KM_Ctrl;
|
| int key = (accelerator & ~(SWT.ALT | SWT.SHIFT | SWT.CONTROL));
|
| Display display = getDisplay ();
|
| int keyCode = display.untranslateKey (key);
|
| if (keyCode != 0) key = keyCode;
|
| else key = Character.toLowerCase ((char)key);
|
| Shell shell = parent.getShell ();
|
| OS.PtRemoveHotkeyHandler(shell.shellHandle, key, keyMods, (short)0, handle, display.hotkeyProc);
|
| }
|
|
|
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the control is selected. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see SelectionListener |
| * @see #addSelectionListener |
| */ |
| public void removeSelectionListener (SelectionListener listener) {
|
| checkWidget();
|
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
|
| if (eventTable == null) return;
|
| eventTable.unhook (SWT.Selection, listener);
|
| eventTable.unhook (SWT.DefaultSelection,listener);
|
| }
|
|
|
| /** |
| * Sets the widget accelerator. An accelerator is the bit-wise |
| * OR of zero or more modifier masks and a key. Examples: |
| * <code>SWT.CONTROL | SWT.SHIFT | 'T', SWT.ALT | SWT.F2</code>. |
| * |
| * @param accelerator an integer that is the bit-wise OR of masks and a key |
| * |
| * </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 setAccelerator (int accelerator) {
|
| checkWidget();
|
| removeAccelerator ();
|
|
|
| this.accelerator = accelerator;
|
| if (accelerator == 0) return;
|
|
|
| int keyMods = 0;
|
| if ((accelerator & SWT.ALT) != 0) keyMods |= OS.Pk_KM_Alt;
|
| if ((accelerator & SWT.SHIFT) != 0) keyMods |= OS.Pk_KM_Shift;
|
| if ((accelerator & SWT.CONTROL) != 0) keyMods |= OS.Pk_KM_Ctrl;
|
| int key = (accelerator & ~(SWT.ALT | SWT.SHIFT | SWT.CONTROL));
|
| Display display = getDisplay ();
|
| int keyCode = display.untranslateKey (key);
|
| if (keyCode != 0) key = keyCode;
|
| else key = Character.toLowerCase ((char)key);
|
| Shell shell = parent.getShell ();
|
| OS.PtAddHotkeyHandler(shell.shellHandle, key, keyMods, (short)0, handle, display.hotkeyProc);
|
| }
|
|
|
| /** |
| * Enables the receiver if the argument is <code>true</code>, |
| * and disables it otherwise. A disabled control 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 ();
|
| this.enabled = enabled;
|
| int topHandle = topHandle ();
|
| int flags = enabled ? 0 : OS.Pt_BLOCKED | OS.Pt_GHOST;
|
| OS.PtSetResource (topHandle, OS.Pt_ARG_FLAGS, flags, OS.Pt_BLOCKED | OS.Pt_GHOST);
|
| }
|
|
|
| /** |
| * Sets the image the receiver will display to the argument. |
| * <p> |
| * Note: This feature is not available on all window systems (for example, Window NT), |
| * in which case, calling this method will silently do nothing. |
| * |
| * @param menu the image to display |
| * |
| * @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 setImage (Image image) {
|
| checkWidget();
|
| if ((style & SWT.SEPARATOR) != 0) return;
|
| if (this.image == image) return;
|
| super.setImage (image);
|
| if ((style & (SWT.CHECK | SWT.RADIO)) != 0) return;
|
| int imageHandle = 0;
|
| int type = OS.Pt_Z_STRING;
|
| if (image != null) {
|
| imageHandle = copyPhImage (image.handle);
|
| if (text.length () != 0) type = OS.Pt_TEXT_IMAGE;
|
| else type = OS.Pt_IMAGE;
|
| } else {
|
| /*
|
| * Bug in Photon. Photon will segment fault, if Pt_ARG_LABEL_IMAGE
|
| * is set to NULL. This means that after setting an image into a
|
| * PtMenuButton, it can never be removed. The fix is to set it to
|
| * a small blank image.
|
| */
|
| Display display = getDisplay ();
|
| imageHandle = copyPhImage (display.nullImage);
|
| }
|
| int [] args = {
|
| OS.Pt_ARG_LABEL_IMAGE, imageHandle, 0,
|
| OS.Pt_ARG_LABEL_TYPE, type, 0,
|
| };
|
| OS.PtSetResources (handle, args.length / 3, args);
|
| if (imageHandle != 0) OS.free (imageHandle);
|
| /*
|
| * Bug on Photon. When a the text is set on a menu
|
| * item that is realized, the menu item does not resize
|
| * to show the new text. The fix is to force the item
|
| * to recalculate the size.
|
| */
|
| if (OS.PtWidgetIsRealized (handle)) OS.PtExtentWidgetFamily (parent.handle);
|
| }
|
|
|
| /** |
| * Sets the receiver's pull down menu to the argument. |
| * Only <code>CASCADE</code> menu items can have a |
| * pull down menu. The sequence of key strokes, button presses |
| * and/or button releases that are used to request a pull down |
| * menu is platform specific. |
| * |
| * @param menu the new pull down menu |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_MENU_NOT_DROP_DOWN - if the menu is not a drop down menu</li> |
| * <li>ERROR_MENUITEM_NOT_CASCADE - if the menu item is not a <code>CASCADE</code></li> |
| * <li>ERROR_INVALID_ARGUMENT - if the menu has been disposed</li> |
| * <li>ERROR_INVALID_PARENT - if the menu is not in the same widget tree</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 setMenu (Menu menu) {
|
| checkWidget();
|
| if ((style & SWT.CASCADE) == 0) {
|
| error (SWT.ERROR_MENUITEM_NOT_CASCADE);
|
| }
|
| if (menu != null) {
|
| if (menu.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
|
| if ((menu.style & SWT.DROP_DOWN) == 0) {
|
| error (SWT.ERROR_MENU_NOT_DROP_DOWN);
|
| }
|
| if (menu.parent != parent.parent) {
|
| error (SWT.ERROR_INVALID_PARENT);
|
| }
|
| }
|
| Menu oldMenu = this.menu;
|
| if (oldMenu == menu) return;
|
| this.menu = menu;
|
| if (oldMenu != null) {
|
| oldMenu.cascade = null;
|
| if ((parent.style & SWT.BAR) == 0) {
|
| OS.PtSetResource (handle, OS.Pt_ARG_BUTTON_TYPE, OS.Pt_MENU_TEXT, 0);
|
| }
|
| }
|
| if (menu != null) {
|
| menu.cascade = this;
|
| if ((parent.style & SWT.BAR) == 0) {
|
| OS.PtSetResource (handle, OS.Pt_ARG_BUTTON_TYPE, OS.Pt_MENU_RIGHT, 0);
|
| }
|
| }
|
| }
|
|
|
| /** |
| * Sets the selection state of the receiver. |
| * <p> |
| * When the receiver is of type <code>CHECK</code> or <code>RADIO</code>, |
| * it is selected when it is checked. |
| * |
| * @param selected the new selection 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 setSelection (boolean selected) {
|
| checkWidget();
|
| if ((style & (SWT.CHECK | SWT.RADIO | SWT.TOGGLE)) == 0) return;
|
| OS.PtSetResource (handle, OS.Pt_ARG_FLAGS, selected ? OS.Pt_SET : 0, OS.Pt_SET);
|
| }
|
|
|
| public void setText (String string) {
|
| checkWidget();
|
| if (string == null) error (SWT.ERROR_NULL_ARGUMENT);
|
| super.setText (string);
|
| char [] text = new char [string.length ()];
|
| string.getChars (0, text.length, text, 0);
|
| boolean accel = false;
|
| int i=0, j=0;
|
| char mnemonic=0;
|
| while (i < text.length) {
|
| if (text [i] == '\t') {accel = true; break;};
|
| if ((text [j++] = text [i++]) == Mnemonic) {
|
| if (i == text.length) {continue;}
|
| if (text [i] == Mnemonic) {i++; continue;}
|
| if (mnemonic == 0) mnemonic = text [i];
|
| j--;
|
| }
|
| }
|
| int keyMods = 0;
|
| byte [] buffer2 = new byte [1];
|
| if (accel && ++i < text.length) {
|
| int start = i;
|
| // while (i < text.length) {
|
| // if (text [i] == '+') {
|
| // String str = new String (text, start, i - start);
|
| // if (str.equals ("Ctrl")) keyMods |= OS.Pk_KM_Ctrl;
|
| // if (str.equals ("Shift")) keyMods |= OS.Pk_KM_Shift;
|
| // if (str.equals ("Alt")) keyMods |= OS.Pk_KM_Alt;
|
| // start = i + 1;
|
| // }
|
| // i++;
|
| // }
|
| if (start < text.length) {
|
| char [] accelText = new char [text.length - start];
|
| System.arraycopy (text, start, accelText, 0, accelText.length);
|
| buffer2 = Converter.wcsToMbcs (null, accelText, true);
|
| }
|
| }
|
| while (j < text.length) text [j++] = 0;
|
| byte [] buffer1 = Converter.wcsToMbcs (null, text, true);
|
| int ptr1 = OS.malloc (buffer1.length);
|
| OS.memmove (ptr1, buffer1, buffer1.length);
|
| int ptr2 = OS.malloc (buffer2.length);
|
| OS.memmove (ptr2, buffer2, buffer2.length);
|
| int ptr3 = 0;
|
| if (mnemonic != 0) {
|
| byte [] buffer3 = Converter.wcsToMbcs (null, new char []{mnemonic}, true);
|
| ptr3 = OS.malloc (buffer3.length);
|
| OS.memmove (ptr3, buffer3, buffer3.length);
|
| }
|
| if ((parent.style & SWT.BAR) != 0) {
|
| replaceMnemonic (mnemonic, false, true);
|
| }
|
| int type = OS.Pt_Z_STRING;
|
| if ((style & SWT.PUSH) != 0) {
|
| if (image != null) type = OS.Pt_TEXT_IMAGE;
|
| }
|
| int [] args = {
|
| OS.Pt_ARG_TEXT_STRING, ptr1, 0,
|
| OS.Pt_ARG_ACCEL_TEXT, ptr2, 0,
|
| OS.Pt_ARG_MODIFIER_KEYS, keyMods, keyMods,
|
| OS.Pt_ARG_ACCEL_KEY, ptr3, 0,
|
| OS.Pt_ARG_LABEL_TYPE, type, 0,
|
| };
|
| OS.PtSetResources (handle, args.length / 3, args);
|
| OS.free (ptr1);
|
| OS.free (ptr2);
|
| OS.free (ptr3);
|
| /*
|
| * Bug on Photon. When a the text is set on a menu
|
| * item that is realized, the menu item does not resize
|
| * to show the new text. The fix is to force the item
|
| * to recalculate the size.
|
| */
|
| if (OS.PtWidgetIsRealized (handle)) OS.PtExtentWidgetFamily (parent.handle);
|
| }
|
|
|
| void showMenu() {
|
| if (menu == null) return;
|
| int menuHandle = menu.handle;
|
| if (!OS.PtWidgetIsRealized (menuHandle)) {
|
| if ((parent.style & SWT.BAR) == 0) {
|
| OS.PtSetResource (menuHandle, OS.Pt_ARG_MENU_FLAGS, OS.Pt_MENU_CHILD, OS.Pt_MENU_CHILD);
|
| }
|
| OS.PtReParentWidget (menuHandle, handle);
|
|
|
| /*
|
| * Bug in Photon. PtPositionMenu does not position the menu
|
| * properly when the menu is a direct child a menu bar item.
|
| * The fix is to position the menu ourselfs.
|
| */
|
| if ((parent.style & SWT.BAR) != 0) {
|
| PhPoint_t pt = new PhPoint_t ();
|
| short [] x = new short [1], y = new short [1];
|
| OS.PtGetAbsPosition (handle, x, y);
|
| pt.x = x [0];
|
| pt.y = y [0];
|
| int [] args = {OS.Pt_ARG_HEIGHT, 0, 0};
|
| OS.PtGetResources (handle, args.length / 3, args);
|
| pt.y += args [1];
|
| int ptr = OS.malloc (PhPoint_t.sizeof);
|
| OS.memmove (ptr, pt, PhPoint_t.sizeof);
|
| OS.PtSetResource (menuHandle, OS.Pt_ARG_POS, ptr, 0);
|
| OS.free (ptr);
|
| } else {
|
| OS.PtPositionMenu (menuHandle, null);
|
| }
|
|
|
| menu.sendEvent (SWT.Show);
|
| OS.PtRealizeWidget (menuHandle);
|
| }
|
| }
|
|
|
| }
|