| /******************************************************************************* |
| * Copyright (c) 2000, 2011 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.internal.win32.*; |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.graphics.*; |
| |
| /** |
| * Instances of this class are responsible for managing the |
| * connection between SWT and the underlying operating |
| * system. Their most important function is to implement |
| * the SWT event loop in terms of the platform event model. |
| * They also provide various methods for accessing information |
| * about the operating system, and have overall control over |
| * the operating system resources which SWT allocates. |
| * <p> |
| * Applications which are built with SWT will <em>almost always</em> |
| * require only a single display. In particular, some platforms |
| * which SWT supports will not allow more than one <em>active</em> |
| * display. In other words, some platforms do not support |
| * creating a new display if one already exists that has not been |
| * sent the <code>dispose()</code> message. |
| * <p> |
| * In SWT, the thread which creates a <code>Display</code> |
| * instance is distinguished as the <em>user-interface thread</em> |
| * for that display. |
| * </p> |
| * The user-interface thread for a particular display has the |
| * following special attributes: |
| * <ul> |
| * <li> |
| * The event loop for that display must be run from the thread. |
| * </li> |
| * <li> |
| * Some SWT API methods (notably, most of the public methods in |
| * <code>Widget</code> and its subclasses), may only be called |
| * from the thread. (To support multi-threaded user-interface |
| * applications, class <code>Display</code> provides inter-thread |
| * communication methods which allow threads other than the |
| * user-interface thread to request that it perform operations |
| * on their behalf.) |
| * </li> |
| * <li> |
| * The thread is not allowed to construct other |
| * <code>Display</code>s until that display has been disposed. |
| * (Note that, this is in addition to the restriction mentioned |
| * above concerning platform support for multiple displays. Thus, |
| * the only way to have multiple simultaneously active displays, |
| * even on platforms which support it, is to have multiple threads.) |
| * </li> |
| * </ul> |
| * Enforcing these attributes allows SWT to be implemented directly |
| * on the underlying operating system's event model. This has |
| * numerous benefits including smaller footprint, better use of |
| * resources, safer memory management, clearer program logic, |
| * better performance, and fewer overall operating system threads |
| * required. The down side however, is that care must be taken |
| * (only) when constructing multi-threaded applications to use the |
| * inter-thread communication mechanisms which this class provides |
| * when required. |
| * </p><p> |
| * All SWT API methods which may only be called from the user-interface |
| * thread are distinguished in their documentation by indicating that |
| * they throw the "<code>ERROR_THREAD_INVALID_ACCESS</code>" |
| * SWT exception. |
| * </p> |
| * <dl> |
| * <dt><b>Styles:</b></dt> |
| * <dd>(none)</dd> |
| * <dt><b>Events:</b></dt> |
| * <dd>Close, Dispose, OpenDocument, Settings, Skin</dd> |
| * </dl> |
| * <p> |
| * IMPORTANT: This class is <em>not</em> intended to be subclassed. |
| * </p> |
| * @see #syncExec |
| * @see #asyncExec |
| * @see #wake |
| * @see #readAndDispatch |
| * @see #sleep |
| * @see Device#dispose |
| * @see <a href="http://www.eclipse.org/swt/snippets/#display">Display snippets</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 Display extends Device { |
| |
| int application, dispatcher, frame, jniRef, nameScope; |
| boolean idle; |
| int sleepOperation, operation; |
| int operationCount; |
| |
| /* Windows and Events */ |
| Event [] eventQueue; |
| EventTable eventTable, filterTable; |
| |
| int lastKey; |
| char lastChar; |
| boolean deadChar; |
| |
| /* Track Mouse Control */ |
| Control mouseControl; |
| |
| /* Focus */ |
| Control focusControl; |
| |
| /* Menus */ |
| Menu [] popups; |
| |
| /* Sync/Async Widget Communication */ |
| Synchronizer synchronizer = new Synchronizer (this); |
| Thread thread; |
| |
| /* Display Shutdown */ |
| Runnable [] disposeList; |
| |
| /* Deferred Layout list */ |
| Composite[] layoutDeferred; |
| int layoutDeferredCount; |
| |
| /* System Tray */ |
| Tray tray; |
| |
| /* Timers */ |
| int timerHandler; |
| int [] timerHandles; |
| Runnable [] timerList; |
| |
| // /* System Resources */ |
| Font systemFont; |
| Image errorImage, infoImage, questionImage, warningIcon; |
| Cursor [] cursors = new Cursor [SWT.CURSOR_HAND + 1]; |
| Color [] colors; |
| |
| /* Sort Indicators */ |
| // Image upArrow, downArrow; |
| |
| /* Color dialog custom dialgos */ |
| int customColors; |
| |
| /* Display Data */ |
| Object data; |
| String [] keys; |
| Object [] values; |
| |
| /* DragDetect */ |
| boolean dragging; |
| int dragDetectFrame, dragRect, dragMouseDown; |
| |
| Control[] invalidate; |
| int invalidateHandler; |
| boolean ignoreRender; |
| |
| Shell [] shells; |
| |
| static String APP_NAME = "SWT"; |
| static String APP_VERSION = ""; //$NON-NLS-1$ |
| |
| /* Key Mappings */ |
| static final int [] [] KeyTable = { |
| |
| /* Keyboard and Mouse Masks */ |
| {OS.Key_LeftAlt, SWT.ALT}, |
| {OS.Key_RightAlt, SWT.ALT}, |
| {OS.Key_LeftShift, SWT.SHIFT}, |
| {OS.Key_RightShift, SWT.SHIFT}, |
| {OS.Key_LeftCtrl, SWT.CONTROL}, |
| {OS.Key_RightCtrl, SWT.CONTROL}, |
| // {OS.VK_????, SWT.COMMAND}, |
| |
| /* NOT CURRENTLY USED */ |
| // {OS.VK_LBUTTON, SWT.BUTTON1}, |
| // {OS.VK_MBUTTON, SWT.BUTTON3}, |
| // {OS.VK_RBUTTON, SWT.BUTTON2}, |
| |
| /* Non-Numeric Keypad Keys */ |
| {OS.Key_Up, SWT.ARROW_UP}, |
| {OS.Key_Down, SWT.ARROW_DOWN}, |
| {OS.Key_Left, SWT.ARROW_LEFT}, |
| {OS.Key_Right, SWT.ARROW_RIGHT}, |
| {OS.Key_PageUp, SWT.PAGE_UP}, |
| {OS.Key_PageDown, SWT.PAGE_DOWN}, |
| {OS.Key_Home, SWT.HOME}, |
| {OS.Key_End, SWT.END}, |
| {OS.Key_Insert, SWT.INSERT}, |
| |
| /* Virtual and Ascii Keys */ |
| {OS.Key_Back, SWT.BS}, |
| {OS.Key_Return, SWT.CR}, |
| {OS.Key_Delete, SWT.DEL}, |
| {OS.Key_Escape, SWT.ESC}, |
| {OS.Key_Return, SWT.LF}, |
| {OS.Key_Tab, SWT.TAB}, |
| |
| /* Functions Keys */ |
| {OS.Key_F1, SWT.F1}, |
| {OS.Key_F2, SWT.F2}, |
| {OS.Key_F3, SWT.F3}, |
| {OS.Key_F4, SWT.F4}, |
| {OS.Key_F5, SWT.F5}, |
| {OS.Key_F6, SWT.F6}, |
| {OS.Key_F7, SWT.F7}, |
| {OS.Key_F8, SWT.F8}, |
| {OS.Key_F9, SWT.F9}, |
| {OS.Key_F10, SWT.F10}, |
| {OS.Key_F11, SWT.F11}, |
| {OS.Key_F12, SWT.F12}, |
| {OS.Key_F13, SWT.F13}, |
| {OS.Key_F14, SWT.F14}, |
| {OS.Key_F15, SWT.F15}, |
| {OS.Key_F16, SWT.F16}, |
| {OS.Key_F17, SWT.F17}, |
| {OS.Key_F18, SWT.F18}, |
| {OS.Key_F19, SWT.F19}, |
| {OS.Key_F20, SWT.F20}, |
| |
| /* Numeric Keypad Keys */ |
| {OS.Key_Multiply, SWT.KEYPAD_MULTIPLY}, |
| {OS.Key_Add, SWT.KEYPAD_ADD}, |
| {OS.Key_Return, SWT.KEYPAD_CR}, |
| {OS.Key_Subtract, SWT.KEYPAD_SUBTRACT}, |
| {OS.Key_Decimal, SWT.KEYPAD_DECIMAL}, |
| {OS.Key_Divide, SWT.KEYPAD_DIVIDE}, |
| {OS.Key_NumPad0, SWT.KEYPAD_0}, |
| {OS.Key_NumPad1, SWT.KEYPAD_1}, |
| {OS.Key_NumPad2, SWT.KEYPAD_2}, |
| {OS.Key_NumPad3, SWT.KEYPAD_3}, |
| {OS.Key_NumPad4, SWT.KEYPAD_4}, |
| {OS.Key_NumPad5, SWT.KEYPAD_5}, |
| {OS.Key_NumPad6, SWT.KEYPAD_6}, |
| {OS.Key_NumPad7, SWT.KEYPAD_7}, |
| {OS.Key_NumPad8, SWT.KEYPAD_8}, |
| {OS.Key_NumPad9, SWT.KEYPAD_9}, |
| // {OS.VK_????, SWT.KEYPAD_EQUAL}, |
| |
| /* Other keys */ |
| {OS.Key_CapsLock, SWT.CAPS_LOCK}, |
| {OS.Key_NumLock, SWT.NUM_LOCK}, |
| {OS.Key_Scroll, SWT.SCROLL_LOCK}, |
| {OS.Key_Pause, SWT.PAUSE}, |
| {OS.Key_Cancel, SWT.BREAK}, |
| {OS.Key_PrintScreen, SWT.PRINT_SCREEN}, |
| // {OS.VK_????, SWT.HELP}, |
| |
| |
| {OS.Key_D0, '0'}, |
| {OS.Key_D1, '1'}, |
| {OS.Key_D2, '2'}, |
| {OS.Key_D3, '3'}, |
| {OS.Key_D4, '4'}, |
| {OS.Key_D5, '5'}, |
| {OS.Key_D6, '6'}, |
| {OS.Key_D7, '7'}, |
| {OS.Key_D8, '8'}, |
| {OS.Key_D9, '9'}, |
| {OS.Key_A, 'a'}, |
| {OS.Key_B, 'b'}, |
| {OS.Key_C, 'c'}, |
| {OS.Key_D, 'd'}, |
| {OS.Key_E, 'e'}, |
| {OS.Key_F, 'f'}, |
| {OS.Key_G, 'g'}, |
| {OS.Key_H, 'h'}, |
| {OS.Key_I, 'i'}, |
| {OS.Key_J, 'j'}, |
| {OS.Key_K, 'k'}, |
| {OS.Key_L, 'l'}, |
| {OS.Key_M, 'm'}, |
| {OS.Key_N, 'n'}, |
| {OS.Key_O, 'o'}, |
| {OS.Key_P, 'p'}, |
| {OS.Key_Q, 'q'}, |
| {OS.Key_R, 'r'}, |
| {OS.Key_S, 's'}, |
| {OS.Key_T, 't'}, |
| {OS.Key_U, 'u'}, |
| {OS.Key_V, 'v'}, |
| {OS.Key_W, 'w'}, |
| {OS.Key_X, 'x'}, |
| {OS.Key_Y, 'y'}, |
| {OS.Key_Z, 'z'}, |
| |
| {OS.Key_OemTilde, '`'}, |
| {OS.Key_OemMinus, '-'}, |
| {OS.Key_OemPlus, '='}, |
| {OS.Key_Oem4, '['}, |
| {OS.Key_Oem6, ']'}, |
| {OS.Key_OemPipe, '\\'}, |
| {OS.Key_OemSemicolon, ';'}, |
| {OS.Key_Oem7, '\''}, |
| {OS.Key_OemComma, ','}, |
| {OS.Key_OemPeriod, '.'}, |
| {OS.Key_Oem2, '/'}, |
| |
| }; |
| |
| /* Multiple Displays */ |
| static Display Default; |
| static Display [] Displays = new Display [4]; |
| |
| /* Multiple Monitors */ |
| static Monitor[] monitors = null; |
| static int monitorCount = 0; |
| |
| /* Modality */ |
| Shell [] modalShells; |
| // Shell modalDialogShell; |
| |
| /* Skinning support */ |
| static final int GROW_SIZE = 1024; |
| Widget [] skinList = new Widget [GROW_SIZE]; |
| int skinCount; |
| |
| /* Package Name */ |
| static final String PACKAGE_PREFIX = "org.eclipse.swt.widgets."; //$NON-NLS-1$ |
| /* |
| * This code is intentionally commented. In order |
| * to support CLDC, .class cannot be used because |
| * it does not compile on some Java compilers when |
| * they are targeted for CLDC. |
| */ |
| // static { |
| // String name = Display.class.getName (); |
| // int index = name.lastIndexOf ('.'); |
| // PACKAGE_PREFIX = name.substring (0, index + 1); |
| // } |
| |
| /* |
| * TEMPORARY CODE. Install the runnable that |
| * gets the current display. This code will |
| * be removed in the future. |
| */ |
| static { |
| DeviceFinder = new Runnable () { |
| public void run () { |
| Device device = getCurrent (); |
| if (device == null) { |
| device = getDefault (); |
| } |
| setDevice (device); |
| } |
| }; |
| } |
| |
| /* |
| * TEMPORARY CODE. |
| */ |
| static void setDevice (Device device) { |
| CurrentDevice = device; |
| } |
| |
| /** |
| * Constructs a new instance of this class. |
| * <p> |
| * Note: The resulting display is marked as the <em>current</em> |
| * display. If this is the first display which has been |
| * constructed since the application started, it is also |
| * marked as the <em>default</em> display. |
| * </p> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if called from a thread that already created an existing display</li> |
| * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
| * </ul> |
| * |
| * @see #getCurrent |
| * @see #getDefault |
| * @see Widget#checkSubclass |
| * @see Shell |
| */ |
| public Display () { |
| this (null); |
| } |
| |
| /** |
| * Constructs a new instance of this class using the parameter. |
| * |
| * @param data the device data |
| */ |
| public Display (DeviceData data) { |
| super (data); |
| } |
| |
| Control _getFocusControl () { |
| int focusedElement = OS.Keyboard_FocusedElement (); |
| Control control = null; |
| if (focusedElement != 0) { |
| Widget widget = getWidget (focusedElement); |
| if (widget instanceof Menu) { |
| Shell shell = ((Menu)widget).getShell(); |
| OS.GCHandle_Free (focusedElement); |
| focusedElement = OS.FocusManager_GetFocusedElement (shell.shellHandle); |
| if (focusedElement == 0) return null; |
| widget = getWidget (focusedElement); |
| } |
| if (widget != null) control = widget.getWidgetControl (); |
| OS.GCHandle_Free (focusedElement); |
| } |
| return control; |
| } |
| |
| void addWidget (int handle, Widget widget) { |
| if (handle == 0) return; |
| int tag = OS.gcnew_IntPtr (widget.jniRef); |
| OS.FrameworkElement_Tag (handle, tag); |
| OS.GCHandle_Free (tag); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when an event of the given type occurs anywhere |
| * in a widget. The event type is one of the event constants |
| * defined in class <code>SWT</code>. When the event does occur, |
| * the listener is notified by sending it the <code>handleEvent()</code> |
| * message. |
| * <p> |
| * Setting the type of an event to <code>SWT.None</code> from |
| * within the <code>handleEvent()</code> method can be used to |
| * change the event type and stop subsequent Java listeners |
| * from running. Because event filters run before other listeners, |
| * event filters can both block other listeners and set arbitrary |
| * fields within an event. For this reason, event filters are both |
| * powerful and dangerous. They should generally be avoided for |
| * performance, debugging and code maintenance reasons. |
| * </p> |
| * |
| * @param eventType the type of event to listen for |
| * @param listener the listener which should be notified when the event occurs |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see Listener |
| * @see SWT |
| * @see #removeFilter |
| * @see #removeListener |
| * |
| * @since 3.0 |
| */ |
| public void addFilter (int eventType, Listener listener) { |
| checkDevice (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (filterTable == null) filterTable = new EventTable (); |
| filterTable.hook (eventType, listener); |
| } |
| |
| void addInvalidate (Control control) { |
| if (invalidate == null) invalidate = new Control [4]; |
| int length = invalidate.length; |
| for (int i=0; i<length; i++) { |
| if (invalidate [i] == control) return; |
| } |
| int index = 0; |
| while (index < length) { |
| if (invalidate [index] == null) break; |
| index++; |
| } |
| if (index == length) { |
| Control [] temp = new Control [length + 4]; |
| System.arraycopy (invalidate, 0, temp, 0, length); |
| invalidate = temp; |
| } |
| invalidate [index] = control; |
| if (invalidateHandler == 0) { |
| int handler = invalidateHandler = OS.gcnew_NoArgsDelegate (jniRef, "invalidateHandler"); |
| int operation = OS.Dispatcher_BeginInvoke (dispatcher, OS.DispatcherPriority_Send, handler); |
| OS.GCHandle_Free (operation); |
| OS.GCHandle_Free (handler); |
| } |
| } |
| |
| void addLayoutDeferred (Composite comp) { |
| if (layoutDeferred == null) layoutDeferred = new Composite [64]; |
| if (layoutDeferredCount == layoutDeferred.length) { |
| Composite [] temp = new Composite [layoutDeferred.length + 64]; |
| System.arraycopy (layoutDeferred, 0, temp, 0, layoutDeferred.length); |
| layoutDeferred = temp; |
| } |
| layoutDeferred[layoutDeferredCount++] = comp; |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when an event of the given type occurs. The event |
| * type is one of the event constants defined in class <code>SWT</code>. |
| * When the event does occur in the display, the listener is notified by |
| * sending it the <code>handleEvent()</code> message. |
| * |
| * @param eventType the type of event to listen for |
| * @param listener the listener which should be notified when the event occurs |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see Listener |
| * @see SWT |
| * @see #removeListener |
| * |
| * @since 2.0 |
| */ |
| public void addListener (int eventType, Listener listener) { |
| checkDevice (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) eventTable = new EventTable (); |
| eventTable.hook (eventType, listener); |
| } |
| |
| void addPopup (Menu menu) { |
| if (popups == null) popups = new Menu [4]; |
| int length = popups.length; |
| for (int i=0; i<length; i++) { |
| if (popups [i] == menu) return; |
| } |
| int index = 0; |
| while (index < length) { |
| if (popups [index] == null) break; |
| index++; |
| } |
| if (index == length) { |
| Menu [] newPopups = new Menu [length + 4]; |
| System.arraycopy (popups, 0, newPopups, 0, length); |
| popups = newPopups; |
| } |
| popups [index] = menu; |
| } |
| |
| void addShell (Shell shell) { |
| if (shells == null) shells = new Shell [4]; |
| int length = shells.length; |
| for (int i=0; i<length; i++) { |
| if (shells [i] == shell) return; |
| } |
| int index = 0; |
| while (index < length) { |
| if (shells [index] == null) break; |
| index++; |
| } |
| if (index == length) { |
| Shell [] temp = new Shell [length + 4]; |
| System.arraycopy (shells, 0, temp, 0, length); |
| shells = temp; |
| } |
| shells [index] = shell; |
| } |
| |
| void addSkinnableWidget (Widget widget) { |
| if (skinCount >= skinList.length) { |
| Widget[] newSkinWidgets = new Widget [skinList.length + GROW_SIZE]; |
| System.arraycopy (skinList, 0, newSkinWidgets, 0, skinList.length); |
| skinList = newSkinWidgets; |
| } |
| skinList [skinCount++] = widget; |
| } |
| |
| /** |
| * Causes the <code>run()</code> method of the runnable to |
| * be invoked by the user-interface thread at the next |
| * reasonable opportunity. The caller of this method continues |
| * to run in parallel, and is not notified when the |
| * runnable has completed. Specifying <code>null</code> as the |
| * runnable simply wakes the user-interface thread when run. |
| * <p> |
| * Note that at the time the runnable is invoked, widgets |
| * that have the receiver as their display may have been |
| * disposed. Therefore, it is necessary to check for this |
| * case inside the runnable before accessing the widget. |
| * </p> |
| * |
| * @param runnable code to run on the user-interface thread or <code>null</code> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see #syncExec |
| */ |
| public void asyncExec (Runnable runnable) { |
| synchronized (Device.class) { |
| if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED); |
| synchronizer.asyncExec (runnable); |
| } |
| } |
| |
| /** |
| * Causes the system hardware to emit a short sound |
| * (if it supports this capability). |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void beep () { |
| checkDevice (); |
| OS.Console_Beep (); |
| } |
| |
| /** |
| * Checks that this class can be subclassed. |
| * <p> |
| * IMPORTANT: See the comment in <code>Widget.checkSubclass()</code>. |
| * </p> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
| * </ul> |
| * |
| * @see Widget#checkSubclass |
| */ |
| protected void checkSubclass () { |
| if (!isValidClass (getClass ())) error (SWT.ERROR_INVALID_SUBCLASS); |
| } |
| |
| protected void checkDevice () { |
| if (thread == null) error (SWT.ERROR_WIDGET_DISPOSED); |
| if (thread != Thread.currentThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS); |
| if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED); |
| } |
| |
| static void checkDisplay (Thread thread, boolean multiple) { |
| synchronized (Device.class) { |
| for (int i=0; i<Displays.length; i++) { |
| if (Displays [i] != null) { |
| if (!multiple) SWT.error (SWT.ERROR_NOT_IMPLEMENTED, null, " [multiple displays]"); |
| if (Displays [i].thread == thread) SWT.error (SWT.ERROR_THREAD_INVALID_ACCESS); |
| } |
| } |
| } |
| } |
| |
| void clearModal (Shell shell) { |
| if (modalShells == null) return; |
| int index = 0, length = modalShells.length; |
| while (index < length) { |
| if (modalShells [index] == shell) break; |
| if (modalShells [index] == null) return; |
| index++; |
| } |
| if (index == length) return; |
| System.arraycopy (modalShells, index + 1, modalShells, index, --length - index); |
| modalShells [length] = null; |
| if (index == 0 && modalShells [0] == null) modalShells = null; |
| Shell [] shells = getShells (); |
| for (int i=0; i<shells.length; i++) shells [i].updateModal (); |
| } |
| |
| /** |
| * Requests that the connection between SWT and the underlying |
| * operating system be closed. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see Device#dispose |
| * |
| * @since 2.0 |
| */ |
| public void close () { |
| checkDevice (); |
| Event event = new Event (); |
| sendEvent (SWT.Close, event); |
| if (event.doit) dispose (); |
| } |
| |
| /** |
| * Creates the device in the operating system. If the device |
| * does not have a handle, this method may do nothing depending |
| * on the device. |
| * <p> |
| * This method is called before <code>init</code>. |
| * </p> |
| * |
| * @param data the DeviceData which describes the receiver |
| * |
| * @see #init |
| */ |
| protected void create (DeviceData data) { |
| checkSubclass (); |
| checkDisplay (thread = Thread.currentThread (), true); |
| createDisplay (data); |
| register (this); |
| if (Default == null) Default = this; |
| } |
| |
| void createDisplay (DeviceData data) { |
| Win32.OleInitialize (0); |
| application = OS.gcnew_Application(); |
| if (application == 0) SWT.error(SWT.ERROR_NO_HANDLES); |
| OS.Application_ShutdownMode (application, OS.ShutdownMode_OnExplicitShutdown); |
| nameScope = OS.gcnew_NameScope (); |
| if (nameScope == 0) SWT.error (SWT.ERROR_NO_HANDLES); |
| } |
| |
| static void deregister (Display display) { |
| synchronized (Device.class) { |
| for (int i=0; i<Displays.length; i++) { |
| if (display == Displays [i]) Displays [i] = null; |
| } |
| } |
| } |
| |
| /** |
| * Destroys the device in the operating system and releases |
| * the device's handle. If the device does not have a handle, |
| * this method may do nothing depending on the device. |
| * <p> |
| * This method is called after <code>release</code>. |
| * </p> |
| * @see Device#dispose |
| * @see #release |
| */ |
| protected void destroy () { |
| if (this == Default) Default = null; |
| deregister (this); |
| destroyDisplay (); |
| } |
| |
| void destroyDisplay () { |
| OS.GCHandle_Dump(); |
| } |
| |
| /** |
| * Causes the <code>run()</code> method of the runnable to |
| * be invoked by the user-interface thread just before the |
| * receiver is disposed. Specifying a <code>null</code> runnable |
| * is ignored. |
| * |
| * @param runnable code to run at dispose time. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void disposeExec (Runnable runnable) { |
| checkDevice (); |
| if (disposeList == null) disposeList = new Runnable [4]; |
| for (int i=0; i<disposeList.length; i++) { |
| if (disposeList [i] == null) { |
| disposeList [i] = runnable; |
| return; |
| } |
| } |
| Runnable [] newDisposeList = new Runnable [disposeList.length + 4]; |
| System.arraycopy (disposeList, 0, newDisposeList, 0, disposeList.length); |
| newDisposeList [disposeList.length] = runnable; |
| disposeList = newDisposeList; |
| } |
| |
| /** |
| * Does whatever display specific cleanup is required, and then |
| * uses the code in <code>SWTError.error</code> to handle the error. |
| * |
| * @param code the descriptive error code |
| * |
| * @see SWT#error(int) |
| */ |
| void error (int code) { |
| SWT.error (code); |
| } |
| |
| boolean filterEvent (Event event) { |
| if (filterTable != null) filterTable.sendEvent (event); |
| return false; |
| } |
| |
| boolean filters (int eventType) { |
| if (filterTable == null) return false; |
| return filterTable.hooks (eventType); |
| } |
| |
| /** |
| * Given the operating system handle for a widget, returns |
| * the instance of the <code>Widget</code> subclass which |
| * represents it in the currently running application, if |
| * such exists, or null if no matching widget can be found. |
| * <p> |
| * <b>IMPORTANT:</b> This method should not be called from |
| * application code. The arguments are platform-specific. |
| * </p> |
| * |
| * @param handle the handle for the widget |
| * @return the SWT widget that the handle represents |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @noreference This method is not intended to be referenced by clients. |
| */ |
| public Widget findWidget (int handle) { |
| checkDevice (); |
| return getWidget (handle); |
| } |
| |
| /** |
| * Given the operating system handle for a widget, |
| * and widget-specific id, returns the instance of |
| * the <code>Widget</code> subclass which represents |
| * the handle/id pair in the currently running application, |
| * if such exists, or null if no matching widget can be found. |
| * <p> |
| * <b>IMPORTANT:</b> This method should not be called from |
| * application code. The arguments are platform-specific. |
| * </p> |
| * |
| * @param handle the handle for the widget |
| * @param id the id for the subwidget (usually an item) |
| * @return the SWT widget that the handle/id pair represents |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @noreference This method is not intended to be referenced by clients. |
| * |
| * @since 3.1 |
| */ |
| public Widget findWidget (int handle, int id) { |
| checkDevice (); |
| return null; |
| } |
| |
| /** |
| * Given a widget and a widget-specific id, returns the |
| * instance of the <code>Widget</code> subclass which represents |
| * the widget/id pair in the currently running application, |
| * if such exists, or null if no matching widget can be found. |
| * |
| * @param widget the widget |
| * @param id the id for the subwidget (usually an item) |
| * @return the SWT subwidget (usually an item) that the widget/id pair represents |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 3.3 |
| */ |
| public Widget findWidget (Widget widget, int id) { |
| checkDevice (); |
| return null; |
| } |
| |
| /** |
| * Returns the display which the given thread is the |
| * user-interface thread for, or null if the given thread |
| * is not a user-interface thread for any display. Specifying |
| * <code>null</code> as the thread will return <code>null</code> |
| * for the display. |
| * |
| * @param thread the user-interface thread |
| * @return the display for the given thread |
| */ |
| public static Display findDisplay (Thread thread) { |
| synchronized (Device.class) { |
| for (int i=0; i<Displays.length; i++) { |
| Display display = Displays [i]; |
| if (display != null && display.thread == thread) { |
| return display; |
| } |
| } |
| return null; |
| } |
| } |
| |
| /** |
| * Returns the currently active <code>Shell</code>, or null |
| * if no shell belonging to the currently running application |
| * is active. |
| * |
| * @return the active shell or null |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public Shell getActiveShell () { |
| checkDevice (); |
| int windows = OS.Application_Windows (application); |
| int count = OS.WindowCollection_Count (windows); |
| int activeWindow = 0; |
| if (count != 0) { |
| int enumerator = OS.WindowCollection_GetEnumerator (windows); |
| while (OS.IEnumerator_MoveNext (enumerator)) { |
| int window = OS.WindowCollection_Current (enumerator); |
| if (OS.Window_IsActive (window)) { |
| activeWindow = window; |
| break; |
| } |
| OS.GCHandle_Free (window); |
| } |
| OS.GCHandle_Free (enumerator); |
| } |
| OS.GCHandle_Free (windows); |
| Shell shell = (Shell)getWidget (activeWindow); |
| if (activeWindow != 0) OS.GCHandle_Free (activeWindow); |
| return shell; |
| } |
| |
| /** |
| * Returns the single instance of the application menu bar, or |
| * <code>null</code> if there is no application menu bar for the platform. |
| * |
| * @return the application menu bar, or <code>null</code> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 3.7 |
| */ |
| public Menu getMenuBar () { |
| checkDevice (); |
| return null; |
| } |
| |
| /** |
| * Returns a rectangle describing the receiver's size and location. Note that |
| * on multi-monitor systems the origin can be negative. |
| * |
| * @return the bounding rectangle |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public Rectangle getBounds () { |
| checkDevice (); |
| int x = (int) OS.SystemParameters_VirtualScreenLeft (); |
| int y = (int) OS.SystemParameters_VirtualScreenTop (); |
| int width = (int) OS.SystemParameters_VirtualScreenWidth (); |
| int height = (int) OS.SystemParameters_VirtualScreenHeight (); |
| return new Rectangle (x, y, width, height); |
| } |
| |
| /** |
| * Returns the display which the currently running thread is |
| * the user-interface thread for, or null if the currently |
| * running thread is not a user-interface thread for any display. |
| * |
| * @return the current display |
| */ |
| public static Display getCurrent () { |
| return findDisplay (Thread.currentThread ()); |
| } |
| |
| /** |
| * Returns a rectangle which describes the area of the |
| * receiver which is capable of displaying data. |
| * |
| * @return the client area |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see #getBounds |
| */ |
| public Rectangle getClientArea () { |
| checkDevice (); |
| // if (true/*OS.GetSystemMetrics (OS.SM_CMONITORS) < 2*/) { |
| int rect = OS.SystemParameters_WorkArea (); |
| int x = (int) OS.Rect_X (rect); |
| int y = (int) OS.Rect_Y (rect); |
| int width = (int) OS.Rect_Width (rect); |
| int height = (int) OS.Rect_Height (rect); |
| OS.GCHandle_Free (rect); |
| return new Rectangle (x, y, width, height); |
| // } |
| // int x = (int) OS.SystemParameters_VirtualScreenLeft (); |
| // int y = (int) OS.SystemParameters_VirtualScreenTop (); |
| // int width = (int) OS.SystemParameters_VirtualScreenWidth (); |
| // int height = (int) OS.SystemParameters_VirtualScreenHeight (); |
| // return new Rectangle (x, y, width, height); |
| } |
| |
| Widget getWidget (int handle) { |
| if (handle == 0) return null; |
| int frameworkElementType = OS.FrameworkElement_typeid (); |
| int frameworkContentElementType = OS.FrameworkContentElement_typeid (); |
| int widget = handle; |
| int jniRef = 0; |
| do { |
| int parent = 0; |
| if (OS.Type_IsInstanceOfType (frameworkElementType, widget)) { |
| int tag = OS.FrameworkElement_Tag (widget); |
| if (tag != 0) { |
| jniRef = OS.IntPtr_ToInt32 (tag); |
| OS.GCHandle_Free (tag); |
| break; |
| } |
| parent = OS.FrameworkElement_Parent (widget); |
| if (parent == 0) { |
| parent = OS.VisualTreeHelper_GetParent (widget); |
| } |
| } else { |
| if (OS.Type_IsInstanceOfType (frameworkContentElementType, widget)) { |
| parent = OS.FrameworkContentElement_Parent (widget); |
| } |
| } |
| if (widget != handle) OS.GCHandle_Free (widget); |
| widget = parent; |
| } while (widget != 0); |
| if (widget != handle && widget != 0) OS.GCHandle_Free (widget); |
| OS.GCHandle_Free (frameworkElementType); |
| OS.GCHandle_Free (frameworkContentElementType); |
| return jniRef != 0 ? (Widget) OS.JNIGetObject (jniRef) : null; |
| } |
| |
| /** |
| * Returns the control which the on-screen pointer is currently |
| * over top of, or null if it is not currently over one of the |
| * controls built by the currently running application. |
| * |
| * @return the control under the cursor or <code>null</code> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public Control getCursorControl () { |
| checkDevice (); |
| int inputElement = 0; |
| int captured = OS.Mouse_Captured (); |
| if (captured != 0) { |
| int sources = OS.PresentationSource_CurrentSources (); |
| int enumerator = OS.IEnumerable_GetEnumerator (sources); |
| while (OS.IEnumerator_MoveNext (enumerator) && inputElement == 0) { |
| int current = OS.IEnumerator_Current (enumerator); |
| int root = OS.PresentationSource_RootVisual (current); |
| if (root != 0) { |
| int pt = OS.Mouse_GetPosition (root); |
| inputElement = OS.UIElement_InputHitTest (root, pt); |
| OS.GCHandle_Free (pt); |
| OS.GCHandle_Free (root); |
| } |
| OS.GCHandle_Free (current); |
| } |
| OS.GCHandle_Free (enumerator); |
| OS.GCHandle_Free (sources); |
| OS.GCHandle_Free (captured); |
| } else { |
| inputElement = OS.Mouse_DirectlyOver (); |
| } |
| if (inputElement != 0) { |
| Widget widget = getWidget (inputElement); |
| OS.GCHandle_Free (inputElement); |
| if (widget != null) return widget.getWidgetControl (); |
| } |
| return null; |
| } |
| |
| /** |
| * Returns the location of the on-screen pointer relative |
| * to the top left corner of the screen. |
| * |
| * @return the cursor location |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public Point getCursorLocation () { |
| checkDevice (); |
| POINT pt = new POINT (); |
| Win32.GetCursorPos (pt); |
| return new Point (pt.x, pt.y); |
| } |
| |
| /** |
| * Returns an array containing the recommended cursor sizes. |
| * |
| * @return the array of cursor sizes |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 3.0 |
| */ |
| public Point [] getCursorSizes () { |
| checkDevice (); |
| // return new Point [] { |
| // new Point (OS.GetSystemMetrics (OS.SM_CXCURSOR), OS.GetSystemMetrics (OS.SM_CYCURSOR))}; |
| return null; |
| } |
| |
| /** |
| * Returns the default display. One is created (making the |
| * thread that invokes this method its user-interface thread) |
| * if it did not already exist. |
| * |
| * @return the default display |
| */ |
| public static Display getDefault () { |
| synchronized (Device.class) { |
| if (Default == null) Default = new Display (); |
| return Default; |
| } |
| } |
| |
| static boolean isValidClass (Class clazz) { |
| String name = clazz.getName (); |
| int index = name.lastIndexOf ('.'); |
| return name.substring (0, index + 1).equals (PACKAGE_PREFIX); |
| } |
| |
| /** |
| * Returns the application defined property of the receiver |
| * with the specified name, or null if it has not been set. |
| * <p> |
| * Applications may have associated arbitrary objects with the |
| * receiver in this fashion. If the objects stored in the |
| * properties need to be notified when the display is disposed |
| * of, it is the application's responsibility to provide a |
| * <code>disposeExec()</code> handler which does so. |
| * </p> |
| * |
| * @param key the name of the property |
| * @return the value of the property or null if it has not been set |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the key is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see #setData(String, Object) |
| * @see #disposeExec(Runnable) |
| */ |
| public Object getData (String key) { |
| checkDevice (); |
| if (key == null) error (SWT.ERROR_NULL_ARGUMENT); |
| // if (key.equals (RUN_MESSAGES_IN_IDLE_KEY)) { |
| // return new Boolean (runMessagesInIdle); |
| // } |
| if (keys == null) return null; |
| for (int i=0; i<keys.length; i++) { |
| if (keys [i].equals (key)) return values [i]; |
| } |
| return null; |
| } |
| |
| /** |
| * Returns the application defined, display specific data |
| * associated with the receiver, or null if it has not been |
| * set. The <em>display specific data</em> is a single, |
| * unnamed field that is stored with every display. |
| * <p> |
| * Applications may put arbitrary objects in this field. If |
| * the object stored in the display specific data needs to |
| * be notified when the display is disposed of, it is the |
| * application's responsibility to provide a |
| * <code>disposeExec()</code> handler which does so. |
| * </p> |
| * |
| * @return the display specific data |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see #setData(Object) |
| * @see #disposeExec(Runnable) |
| */ |
| public Object getData () { |
| checkDevice (); |
| return data; |
| } |
| |
| /** |
| * Returns the button dismissal alignment, one of <code>LEFT</code> or <code>RIGHT</code>. |
| * The button dismissal alignment is the ordering that should be used when positioning the |
| * default dismissal button for a dialog. For example, in a dialog that contains an OK and |
| * CANCEL button, on platforms where the button dismissal alignment is <code>LEFT</code>, the |
| * button ordering should be OK/CANCEL. When button dismissal alignment is <code>RIGHT</code>, |
| * the button ordering should be CANCEL/OK. |
| * |
| * @return the button dismissal order |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 2.1 |
| */ |
| public int getDismissalAlignment () { |
| checkDevice (); |
| return SWT.LEFT; |
| } |
| |
| |
| /** |
| * Returns the longest duration, in milliseconds, between |
| * two mouse button clicks that will be considered a |
| * <em>double click</em> by the underlying operating system. |
| * |
| * @return the double click time |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public int getDoubleClickTime () { |
| checkDevice (); |
| //TODO |
| return 500; |
| } |
| |
| /** |
| * Returns the control which currently has keyboard focus, |
| * or null if keyboard events are not currently going to |
| * any of the controls built by the currently running |
| * application. |
| * |
| * @return the focus control or <code>null</code> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public Control getFocusControl () { |
| checkDevice (); |
| if (focusControl != null && !focusControl.isDisposed ()) { |
| return focusControl; |
| } |
| return _getFocusControl (); |
| } |
| |
| /** |
| * Returns true when the high contrast mode is enabled. |
| * Otherwise, false is returned. |
| * <p> |
| * Note: This operation is a hint and is not supported on |
| * platforms that do not have this concept. |
| * </p> |
| * |
| * @return the high contrast mode |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 3.0 |
| */ |
| public boolean getHighContrast () { |
| checkDevice (); |
| return OS.SystemParameters_HighContrast (); |
| } |
| |
| /** |
| * Returns the maximum allowed depth of icons on this display, in bits per pixel. |
| * On some platforms, this may be different than the actual depth of the display. |
| * |
| * @return the maximum icon depth |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see Device#getDepth |
| */ |
| public int getIconDepth () { |
| checkDevice (); |
| // if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (5, 1)) { |
| // if (getDepth () >= 24) return 32; |
| // } |
| // |
| // /* Use the character encoding for the default locale */ |
| // TCHAR buffer1 = new TCHAR (0, "Control Panel\\Desktop\\WindowMetrics", true); //$NON-NLS-1$ |
| // |
| // int [] phkResult = new int [1]; |
| // int result = OS.RegOpenKeyEx (OS.HKEY_CURRENT_USER, buffer1, 0, OS.KEY_READ, phkResult); |
| // if (result != 0) return 4; |
| int depth = 4; |
| // int [] lpcbData = new int [1]; |
| // |
| // /* Use the character encoding for the default locale */ |
| // TCHAR buffer2 = new TCHAR (0, "Shell Icon BPP", true); //$NON-NLS-1$ |
| // result = OS.RegQueryValueEx (phkResult [0], buffer2, 0, null, (TCHAR) null, lpcbData); |
| // if (result == 0) { |
| // TCHAR lpData = new TCHAR (0, lpcbData [0] / TCHAR.sizeof); |
| // result = OS.RegQueryValueEx (phkResult [0], buffer2, 0, null, lpData, lpcbData); |
| // if (result == 0) { |
| // try { |
| // depth = Integer.parseInt (lpData.toString (0, lpData.strlen ())); |
| // } catch (NumberFormatException e) {} |
| // } |
| // } |
| // OS.RegCloseKey (phkResult [0]); |
| return depth; |
| } |
| |
| /** |
| * Returns an array containing the recommended icon sizes. |
| * |
| * @return the array of icon sizes |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see Decorations#setImages(Image[]) |
| * |
| * @since 3.0 |
| */ |
| public Point [] getIconSizes () { |
| checkDevice (); |
| //TODO |
| // return new Point [] { |
| // new Point (OS.GetSystemMetrics (OS.SM_CXSMICON), OS.GetSystemMetrics (OS.SM_CYSMICON)), |
| // new Point (OS.GetSystemMetrics (OS.SM_CXICON), OS.GetSystemMetrics (OS.SM_CYICON)), |
| // }; |
| return null; |
| } |
| |
| int getLastEventTime () { |
| //TODO - use OS |
| return (int)System.currentTimeMillis(); |
| } |
| |
| int getMessageCount () { |
| return synchronizer.getMessageCount (); |
| } |
| |
| |
| Shell getModalShell () { |
| if (modalShells == null) return null; |
| int index = modalShells.length; |
| while (--index >= 0) { |
| Shell shell = modalShells [index]; |
| if (shell != null) return shell; |
| } |
| return null; |
| } |
| |
| //Shell getModalDialogShell () { |
| // if (modalDialogShell != null && modalDialogShell.isDisposed ()) modalDialogShell = null; |
| // return modalDialogShell; |
| //} |
| |
| /** |
| * Returns an array of monitors attached to the device. |
| * |
| * @return the array of monitors |
| * |
| * @since 3.0 |
| */ |
| public Monitor [] getMonitors () { |
| checkDevice (); |
| int screens = OS.Screen_AllScreens (); |
| if (screens == 0) error (SWT.ERROR_NO_HANDLES); |
| int screenCount = OS.ICollection_Count (screens); |
| Monitor [] monitors = new Monitor [screenCount]; |
| for (int i=0; i<screenCount; i++) { |
| int screen = OS.IList_default (screens, i); |
| int bounds = OS.Screen_Bounds (screen); |
| int workingArea = OS.Screen_WorkingArea (screen); |
| Monitor monitor = new Monitor (); |
| monitor.x = OS.Rectangle_X (bounds); |
| monitor.y = OS.Rectangle_Y (bounds); |
| monitor.width = OS.Rectangle_Width (bounds); |
| monitor.height = OS.Rectangle_Height (bounds); |
| monitor.clientX = OS.Rectangle_X (workingArea); |
| monitor.clientY = OS.Rectangle_Y (workingArea); |
| monitor.clientWidth = OS.Rectangle_Width (workingArea); |
| monitor.clientHeight = OS.Rectangle_Height (workingArea); |
| monitors [i] = monitor; |
| OS.GCHandle_Free (workingArea); |
| OS.GCHandle_Free (bounds); |
| OS.GCHandle_Free (screen); |
| } |
| OS.GCHandle_Free (screens); |
| return monitors; |
| } |
| |
| /** |
| * Returns the primary monitor for that device. |
| * |
| * @return the primary monitor |
| * |
| * @since 3.0 |
| */ |
| public Monitor getPrimaryMonitor () { |
| checkDevice (); |
| int screen = OS.Screen_PrimaryScreen (); |
| if (screen == 0) error (SWT.ERROR_NO_HANDLES); |
| int bounds = OS.Screen_Bounds (screen); |
| int workingArea = OS.Screen_WorkingArea (screen); |
| Monitor monitor = new Monitor (); |
| monitor.x = OS.Rectangle_X (bounds); |
| monitor.y = OS.Rectangle_Y (bounds); |
| monitor.width = OS.Rectangle_Width (bounds); |
| monitor.height = OS.Rectangle_Height (bounds); |
| monitor.clientX = OS.Rectangle_X (workingArea); |
| monitor.clientY = OS.Rectangle_Y (workingArea); |
| monitor.clientWidth = OS.Rectangle_Width (workingArea); |
| monitor.clientHeight = OS.Rectangle_Height (workingArea); |
| OS.GCHandle_Free (workingArea); |
| OS.GCHandle_Free (bounds); |
| OS.GCHandle_Free (screen); |
| return monitor; |
| } |
| |
| /** |
| * Returns a (possibly empty) array containing all shells which have |
| * not been disposed and have the receiver as their display. |
| * |
| * @return the receiver's shells |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public Shell [] getShells () { |
| checkDevice (); |
| if (shells == null) return new Shell [0]; |
| int length = 0; |
| for (int i=0; i<shells.length; i++) { |
| if (shells [i] != null) length++; |
| } |
| int index = 0; |
| Shell [] result = new Shell [length]; |
| for (int i=0; i<shells.length; i++) { |
| Shell widget = shells [i]; |
| if (widget != null) result [index++] = widget; |
| } |
| return result; |
| } |
| |
| /** |
| * Gets the synchronizer used by the display. |
| * |
| * @return the receiver's synchronizer |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 3.4 |
| */ |
| public Synchronizer getSynchronizer () { |
| checkDevice (); |
| return synchronizer; |
| } |
| |
| /** |
| * Returns the thread that has invoked <code>syncExec</code> |
| * or null if no such runnable is currently being invoked by |
| * the user-interface thread. |
| * <p> |
| * Note: If a runnable invoked by asyncExec is currently |
| * running, this method will return null. |
| * </p> |
| * |
| * @return the receiver's sync-interface thread |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public Thread getSyncThread () { |
| synchronized (Device.class) { |
| if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED); |
| return synchronizer.syncThread; |
| } |
| } |
| |
| /** |
| * Returns the matching standard color for the given |
| * constant, which should be one of the color constants |
| * specified in class <code>SWT</code>. Any value other |
| * than one of the SWT color constants which is passed |
| * in will result in the color black. This color should |
| * not be free'd because it was allocated by the system, |
| * not the application. |
| * |
| * @param id the color constant |
| * @return the matching color |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see SWT |
| */ |
| public Color getSystemColor (int id) { |
| checkDevice (); |
| Color color = null; |
| if (0 <= id && id < colors.length) { |
| color = colors [id]; |
| } |
| return color != null ? color : super.getSystemColor (id); |
| } |
| |
| /** |
| * Returns the matching standard platform cursor for the given |
| * constant, which should be one of the cursor constants |
| * specified in class <code>SWT</code>. This cursor should |
| * not be free'd because it was allocated by the system, |
| * not the application. A value of <code>null</code> will |
| * be returned if the supplied constant is not an SWT cursor |
| * constant. |
| * |
| * @param id the SWT cursor constant |
| * @return the corresponding cursor or <code>null</code> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see SWT#CURSOR_ARROW |
| * @see SWT#CURSOR_WAIT |
| * @see SWT#CURSOR_CROSS |
| * @see SWT#CURSOR_APPSTARTING |
| * @see SWT#CURSOR_HELP |
| * @see SWT#CURSOR_SIZEALL |
| * @see SWT#CURSOR_SIZENESW |
| * @see SWT#CURSOR_SIZENS |
| * @see SWT#CURSOR_SIZENWSE |
| * @see SWT#CURSOR_SIZEWE |
| * @see SWT#CURSOR_SIZEN |
| * @see SWT#CURSOR_SIZES |
| * @see SWT#CURSOR_SIZEE |
| * @see SWT#CURSOR_SIZEW |
| * @see SWT#CURSOR_SIZENE |
| * @see SWT#CURSOR_SIZESE |
| * @see SWT#CURSOR_SIZESW |
| * @see SWT#CURSOR_SIZENW |
| * @see SWT#CURSOR_UPARROW |
| * @see SWT#CURSOR_IBEAM |
| * @see SWT#CURSOR_NO |
| * @see SWT#CURSOR_HAND |
| * |
| * @since 3.0 |
| */ |
| public Cursor getSystemCursor (int id) { |
| checkDevice (); |
| if (!(0 <= id && id < cursors.length)) return null; |
| if (cursors [id] == null) { |
| cursors [id] = new Cursor (this, id); |
| } |
| return cursors [id]; |
| } |
| |
| /** |
| * Returns the matching standard platform image for the given |
| * constant, which should be one of the icon constants |
| * specified in class <code>SWT</code>. This image should |
| * not be free'd because it was allocated by the system, |
| * not the application. A value of <code>null</code> will |
| * be returned either if the supplied constant is not an |
| * SWT icon constant or if the platform does not define an |
| * image that corresponds to the constant. |
| * |
| * @param id the SWT icon constant |
| * @return the corresponding image or <code>null</code> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see SWT#ICON_ERROR |
| * @see SWT#ICON_INFORMATION |
| * @see SWT#ICON_QUESTION |
| * @see SWT#ICON_WARNING |
| * @see SWT#ICON_WORKING |
| * |
| * @since 3.0 |
| */ |
| public Image getSystemImage (int id) { |
| checkDevice (); |
| switch (id) { |
| case SWT.ICON_ERROR: { |
| if (errorImage != null) return errorImage; |
| int hIcon = Win32.LoadImage (0, Win32.OIC_HAND, Win32.IMAGE_ICON, 0, 0, Win32.LR_SHARED); |
| int empty = OS.Int32Rect_Empty (); |
| int source = OS.Imaging_CreateBitmapSourceFromHIcon (hIcon, empty, 0); |
| errorImage = Image.wpf_new (this, SWT.BITMAP, source); |
| OS.GCHandle_Free (empty); |
| Win32.DestroyIcon (hIcon); |
| return errorImage; |
| } |
| case SWT.ICON_WORKING: |
| case SWT.ICON_INFORMATION: { |
| if (infoImage != null) return infoImage; |
| int hIcon = Win32.LoadImage (0, Win32.OIC_INFORMATION, Win32.IMAGE_ICON, 0, 0, Win32.LR_SHARED); |
| int empty = OS.Int32Rect_Empty (); |
| int source = OS.Imaging_CreateBitmapSourceFromHIcon (hIcon, empty, 0); |
| infoImage = Image.wpf_new (this, SWT.BITMAP, source); |
| OS.GCHandle_Free (empty); |
| Win32.DestroyIcon (hIcon); |
| return infoImage; |
| } |
| case SWT.ICON_QUESTION: { |
| if (questionImage != null) return questionImage; |
| int hIcon = Win32.LoadImage (0, Win32.OIC_QUES, Win32.IMAGE_ICON, 0, 0, Win32.LR_SHARED); |
| int empty = OS.Int32Rect_Empty (); |
| int source = OS.Imaging_CreateBitmapSourceFromHIcon (hIcon, empty, 0); |
| questionImage = Image.wpf_new (this, SWT.BITMAP, source); |
| OS.GCHandle_Free (empty); |
| Win32.DestroyIcon (hIcon); |
| return questionImage; |
| } |
| case SWT.ICON_WARNING: { |
| if (warningIcon != null) return warningIcon; |
| int hIcon = Win32.LoadImage (0, Win32.OIC_BANG, Win32.IMAGE_ICON, 0, 0, Win32.LR_SHARED); |
| int empty = OS.Int32Rect_Empty (); |
| int source = OS.Imaging_CreateBitmapSourceFromHIcon (hIcon, empty, 0); |
| warningIcon = Image.wpf_new (this, SWT.BITMAP, source); |
| OS.GCHandle_Free (empty); |
| Win32.DestroyIcon (hIcon); |
| return warningIcon; |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Returns the single instance of the system-provided menu for the application, or |
| * <code>null</code> on platforms where no menu is provided for the application. |
| * |
| * @return the system menu, or <code>null</code> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 3.7 |
| */ |
| public Menu getSystemMenu () { |
| checkDevice(); |
| return null; |
| } |
| |
| /** |
| * Returns the single instance of the system taskBar or null |
| * when there is no system taskBar available for the platform. |
| * |
| * @return the system taskBar or <code>null</code> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 3.6 |
| */ |
| public TaskBar getSystemTaskBar () { |
| checkDevice (); |
| return null; |
| } |
| |
| /** |
| * Returns the single instance of the system tray or null |
| * when there is no system tray available for the platform. |
| * |
| * @return the system tray or <code>null</code> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 3.0 |
| */ |
| public Tray getSystemTray () { |
| checkDevice (); |
| if (tray != null) return tray; |
| tray = new Tray (this, SWT.NONE); |
| return tray; |
| } |
| |
| /** |
| * Returns the user-interface thread for the receiver. |
| * |
| * @return the receiver's user-interface thread |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public Thread getThread () { |
| synchronized (Device.class) { |
| if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED); |
| return thread; |
| } |
| } |
| |
| /** |
| * Returns a boolean indicating whether a touch-aware input device is |
| * attached to the system and is ready for use. |
| * |
| * @return <code>true</code> if a touch-aware input device is detected, or <code>false</code> otherwise |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 3.7 |
| */ |
| public boolean getTouchEnabled() { |
| checkDevice(); |
| return false; |
| } |
| |
| /** |
| * Invokes platform specific functionality to allocate a new GC handle. |
| * <p> |
| * <b>IMPORTANT:</b> This method is <em>not</em> part of the public |
| * API for <code>Display</code>. 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 called from |
| * application code. |
| * </p> |
| * |
| * @param data the platform specific GC data |
| * @return the platform specific GC handle |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * @exception SWTError <ul> |
| * <li>ERROR_NO_HANDLES if a handle could not be obtained for gc creation</li> |
| * </ul> |
| * |
| * @noreference This method is not intended to be referenced by clients. |
| */ |
| public int internal_new_GC (GCData data) { |
| if (isDisposed()) SWT.error(SWT.ERROR_DEVICE_DISPOSED); |
| //TODO - for now, return a drawing context that can measure text |
| if (data == null) return 0; |
| int visual = OS.gcnew_DrawingVisual(); |
| if (visual == 0) SWT.error(SWT.ERROR_NO_HANDLES); |
| int dc = OS.DrawingVisual_RenderOpen (visual); |
| if (dc == 0) SWT.error (SWT.ERROR_NO_HANDLES); |
| data.visual = visual; |
| data.font = getSystemFont (); |
| return dc; |
| } |
| |
| /** |
| * Initializes any internal resources needed by the |
| * device. |
| * <p> |
| * This method is called after <code>create</code>. |
| * </p> |
| * |
| * @see #create |
| */ |
| protected void init () { |
| super.init (); |
| |
| dispatcher = OS.Application_Dispatcher (application); |
| if (dispatcher == 0) SWT.error (SWT.ERROR_NO_HANDLES); |
| frame = OS.gcnew_DispatcherFrame (); |
| if (frame == 0) SWT.error (SWT.ERROR_NO_HANDLES); |
| jniRef = OS.NewGlobalRef (this); |
| if (jniRef == 0) SWT.error (SWT.ERROR_NO_HANDLES); |
| int hooks = OS.Dispatcher_Hooks (dispatcher); |
| int handler = OS.gcnew_EventHandler (jniRef, "HandleDispatcherInactive"); |
| OS.DispatcherHooks_DispatcherInactive (hooks, handler); |
| OS.GCHandle_Free (handler); |
| handler = OS.gcnew_DispatcherHookEventHandler (jniRef, "HandleOperationCompleted"); |
| OS.DispatcherHooks_OperationCompleted (hooks, handler); |
| OS.GCHandle_Free (handler); |
| handler = OS.gcnew_DispatcherHookEventHandler (jniRef, "HandleOperationPosted"); |
| OS.DispatcherHooks_OperationPosted (hooks, handler); |
| OS.GCHandle_Free (handler); |
| OS.GCHandle_Free (hooks); |
| timerHandler = OS.gcnew_TimerHandler(jniRef, "timerProc"); |
| |
| |
| /* Create the standard colors */ |
| colors = new Color [SWT.COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT + 1]; |
| colors [SWT.COLOR_WIDGET_DARK_SHADOW] = Color.wpf_new( this, OS.SystemColors_ControlDarkDarkColor ()); |
| colors [SWT.COLOR_WIDGET_NORMAL_SHADOW] = Color.wpf_new (this, OS.SystemColors_ControlDarkColor ()); |
| colors [SWT.COLOR_WIDGET_LIGHT_SHADOW] = Color.wpf_new (this, OS.SystemColors_ControlLightColor ()); |
| colors [SWT.COLOR_WIDGET_HIGHLIGHT_SHADOW] = Color.wpf_new (this, OS.SystemColors_ControlLightLightColor ()); |
| colors [SWT.COLOR_WIDGET_FOREGROUND] = Color.wpf_new (this, OS.SystemColors_ControlTextColor ()); |
| colors [SWT.COLOR_WIDGET_BACKGROUND] = Color.wpf_new (this, OS.SystemColors_ControlColor ()); |
| colors [SWT.COLOR_WIDGET_BORDER] = Color.wpf_new (this, OS.SystemColors_ActiveBorderColor ()); |
| colors [SWT.COLOR_LIST_FOREGROUND] = Color.wpf_new (this, OS.SystemColors_WindowTextColor ()); |
| colors [SWT.COLOR_LIST_BACKGROUND] = Color.wpf_new (this, OS.SystemColors_WindowColor ()); |
| colors [SWT.COLOR_LIST_SELECTION] = Color.wpf_new (this, OS.SystemColors_HighlightColor ()); |
| colors [SWT.COLOR_LIST_SELECTION_TEXT] = Color.wpf_new (this, OS.SystemColors_HighlightTextColor ()); |
| colors [SWT.COLOR_INFO_FOREGROUND] = Color.wpf_new (this, OS.SystemColors_InfoTextColor ()); |
| colors [SWT.COLOR_INFO_BACKGROUND] = Color.wpf_new (this, OS.SystemColors_InfoColor ()); |
| colors [SWT.COLOR_TITLE_FOREGROUND] = Color.wpf_new (this, OS.SystemColors_ActiveCaptionTextColor ()); |
| colors [SWT.COLOR_TITLE_BACKGROUND] = Color.wpf_new (this, OS.SystemColors_ActiveCaptionColor ()); |
| colors [SWT.COLOR_TITLE_BACKGROUND_GRADIENT] = Color.wpf_new (this, OS.SystemColors_GradientActiveCaptionColor ()); |
| colors [SWT.COLOR_TITLE_INACTIVE_FOREGROUND] = Color.wpf_new (this, OS.SystemColors_InactiveCaptionTextColor ()); |
| colors [SWT.COLOR_TITLE_INACTIVE_BACKGROUND] = Color.wpf_new (this, OS.SystemColors_InactiveCaptionColor ()); |
| colors [SWT.COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT] = Color.wpf_new (this, OS.SystemColors_GradientInactiveCaptionColor ()); |
| |
| } |
| |
| void invalidateHandler () { |
| invalidateHandler = 0; |
| if (invalidate != null) { |
| Control[] invalidate = this.invalidate; |
| this.invalidate = null; |
| for (int i = 0; i < invalidate.length; i++) { |
| Control control = invalidate [i]; |
| if (control != null && !control.isDisposed()) { |
| control.redraw (true); |
| } |
| } |
| } |
| } |
| |
| void HandleDispatcherInactive (int sender, int e) { |
| if (runAsyncMessages (false)) wakeThread (); |
| } |
| |
| void HandleOperationCompleted (int sender, int e) { |
| if (operation != 0) { |
| int current = OS.DispatcherHookEventArgs_Operation(e); |
| int priority = OS.DispatcherOperation_Priority(current); |
| if (priority == 5) OS.DispatcherOperation_Abort(operation); |
| OS.GCHandle_Free(current); |
| } |
| } |
| |
| void HandleOperationPosted (int sender, int e) { |
| if (sleepOperation != 0) OS.DispatcherOperation_Priority(sleepOperation, OS.DispatcherPriority_Send); |
| } |
| |
| /** |
| * Invokes platform specific functionality to dispose a GC handle. |
| * <p> |
| * <b>IMPORTANT:</b> This method is <em>not</em> part of the public |
| * API for <code>Display</code>. 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 called from |
| * application code. |
| * </p> |
| * |
| * @param hDC the platform specific GC handle |
| * @param data the platform specific GC data |
| * |
| * @noreference This method is not intended to be referenced by clients. |
| */ |
| public void internal_dispose_GC (int dc, GCData data) { |
| //TODO - the wrong drawing context was created |
| if (data != null && data.drawingContext == 0) { |
| OS.DrawingContext_Close (dc); |
| OS.GCHandle_Free (dc); |
| OS.GCHandle_Free (data.visual); |
| } |
| } |
| |
| boolean isValidThread () { |
| return thread == Thread.currentThread (); |
| } |
| |
| /** |
| * Maps a point from one coordinate system to another. |
| * When the control is null, coordinates are mapped to |
| * the display. |
| * <p> |
| * NOTE: On right-to-left platforms where the coordinate |
| * systems are mirrored, special care needs to be taken |
| * when mapping coordinates from one control to another |
| * to ensure the result is correctly mirrored. |
| * |
| * Mapping a point that is the origin of a rectangle and |
| * then adding the width and height is not equivalent to |
| * mapping the rectangle. When one control is mirrored |
| * and the other is not, adding the width and height to a |
| * point that was mapped causes the rectangle to extend |
| * in the wrong direction. Mapping the entire rectangle |
| * instead of just one point causes both the origin and |
| * the corner of the rectangle to be mapped. |
| * </p> |
| * |
| * @param from the source <code>Control</code> or <code>null</code> |
| * @param to the destination <code>Control</code> or <code>null</code> |
| * @param point to be mapped |
| * @return point with mapped coordinates |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the point is null</li> |
| * <li>ERROR_INVALID_ARGUMENT - if the Control from or the Control to have been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 2.1.2 |
| */ |
| public Point map (Control from, Control to, Point point) { |
| checkDevice (); |
| if (point == null) error (SWT.ERROR_NULL_ARGUMENT); |
| return map (from, to, point.x, point.y); |
| } |
| |
| /** |
| * Maps a point from one coordinate system to another. |
| * When the control is null, coordinates are mapped to |
| * the display. |
| * <p> |
| * NOTE: On right-to-left platforms where the coordinate |
| * systems are mirrored, special care needs to be taken |
| * when mapping coordinates from one control to another |
| * to ensure the result is correctly mirrored. |
| * |
| * Mapping a point that is the origin of a rectangle and |
| * then adding the width and height is not equivalent to |
| * mapping the rectangle. When one control is mirrored |
| * and the other is not, adding the width and height to a |
| * point that was mapped causes the rectangle to extend |
| * in the wrong direction. Mapping the entire rectangle |
| * instead of just one point causes both the origin and |
| * the corner of the rectangle to be mapped. |
| * </p> |
| * |
| * @param from the source <code>Control</code> or <code>null</code> |
| * @param to the destination <code>Control</code> or <code>null</code> |
| * @param x coordinates to be mapped |
| * @param y coordinates to be mapped |
| * @return point with mapped coordinates |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the Control from or the Control to have been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 2.1.2 |
| */ |
| public Point map (Control from, Control to, int x, int y) { |
| checkDevice (); |
| if (from != null && from.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (to != null && to.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (from == to) return new Point (x, y); |
| int newX, newY; |
| if (from != null && to != null) { |
| int point = OS.gcnew_Point (x, y); |
| int newPoint = OS.UIElement_TranslatePoint (from.handle, point, to.handle); |
| newX = (int) (OS.Point_X (newPoint) + 0.5); |
| newY = (int) (OS.Point_Y (newPoint) + 0.5); |
| OS.GCHandle_Free (point); |
| OS.GCHandle_Free (newPoint); |
| } else { |
| if (from == null) { |
| int toHandle = to.handle; |
| to.updateLayout (toHandle); |
| int source = OS.PresentationSource_FromVisual (toHandle); |
| int window = OS.PresentationSource_RootVisual (source); |
| OS.GCHandle_Free (source); |
| int point = OS.gcnew_Point (x, y); |
| int temp = OS.Visual_PointFromScreen (window, point); |
| int newPoint = OS.UIElement_TranslatePoint (window, temp, toHandle); |
| newX = (int) OS.Point_X (newPoint); |
| newY = (int) OS.Point_Y (newPoint); |
| OS.GCHandle_Free (temp); |
| OS.GCHandle_Free (point); |
| OS.GCHandle_Free (newPoint); |
| OS.GCHandle_Free (window); |
| } else { |
| int fromHandle = from.handle; |
| from.updateLayout (fromHandle); |
| int source = OS.PresentationSource_FromVisual (fromHandle); |
| int window = OS.PresentationSource_RootVisual (source); |
| OS.GCHandle_Free (source); |
| int point = OS.gcnew_Point (x, y); |
| int temp = OS.UIElement_TranslatePoint (fromHandle, point, window); |
| int newPoint = OS.Visual_PointToScreen (window, temp); |
| newX = (int) OS.Point_X (newPoint); |
| newY = (int) OS.Point_Y (newPoint); |
| OS.GCHandle_Free (temp); |
| OS.GCHandle_Free (point); |
| OS.GCHandle_Free (newPoint); |
| OS.GCHandle_Free (window); |
| } |
| } |
| return new Point (newX, newY); |
| } |
| |
| /** |
| * Maps a point from one coordinate system to another. |
| * When the control is null, coordinates are mapped to |
| * the display. |
| * <p> |
| * NOTE: On right-to-left platforms where the coordinate |
| * systems are mirrored, special care needs to be taken |
| * when mapping coordinates from one control to another |
| * to ensure the result is correctly mirrored. |
| * |
| * Mapping a point that is the origin of a rectangle and |
| * then adding the width and height is not equivalent to |
| * mapping the rectangle. When one control is mirrored |
| * and the other is not, adding the width and height to a |
| * point that was mapped causes the rectangle to extend |
| * in the wrong direction. Mapping the entire rectangle |
| * instead of just one point causes both the origin and |
| * the corner of the rectangle to be mapped. |
| * </p> |
| * |
| * @param from the source <code>Control</code> or <code>null</code> |
| * @param to the destination <code>Control</code> or <code>null</code> |
| * @param rectangle to be mapped |
| * @return rectangle with mapped coordinates |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the rectangle is null</li> |
| * <li>ERROR_INVALID_ARGUMENT - if the Control from or the Control to have been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 2.1.2 |
| */ |
| public Rectangle map (Control from, Control to, Rectangle rectangle) { |
| checkDevice (); |
| if (rectangle == null) error (SWT.ERROR_NULL_ARGUMENT); |
| return map (from, to, rectangle.x, rectangle.y, rectangle.width, rectangle.height); |
| } |
| |
| /** |
| * Maps a point from one coordinate system to another. |
| * When the control is null, coordinates are mapped to |
| * the display. |
| * <p> |
| * NOTE: On right-to-left platforms where the coordinate |
| * systems are mirrored, special care needs to be taken |
| * when mapping coordinates from one control to another |
| * to ensure the result is correctly mirrored. |
| * |
| * Mapping a point that is the origin of a rectangle and |
| * then adding the width and height is not equivalent to |
| * mapping the rectangle. When one control is mirrored |
| * and the other is not, adding the width and height to a |
| * point that was mapped causes the rectangle to extend |
| * in the wrong direction. Mapping the entire rectangle |
| * instead of just one point causes both the origin and |
| * the corner of the rectangle to be mapped. |
| * </p> |
| * |
| * @param from the source <code>Control</code> or <code>null</code> |
| * @param to the destination <code>Control</code> or <code>null</code> |
| * @param x coordinates to be mapped |
| * @param y coordinates to be mapped |
| * @param width coordinates to be mapped |
| * @param height coordinates to be mapped |
| * @return rectangle with mapped coordinates |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the Control from or the Control to have been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 2.1.2 |
| */ |
| public Rectangle map (Control from, Control to, int x, int y, int width, int height) { |
| checkDevice (); |
| if (from != null && from.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (to != null && to.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (from == to) return new Rectangle (x, y, width, height); |
| //TODO |
| Point point = map (from, to, x, y); |
| return new Rectangle (point.x, point.y, width, height); |
| } |
| |
| /** |
| * Generate a low level system event. |
| * |
| * <code>post</code> is used to generate low level keyboard |
| * and mouse events. The intent is to enable automated UI |
| * testing by simulating the input from the user. Most |
| * SWT applications should never need to call this method. |
| * <p> |
| * Note that this operation can fail when the operating system |
| * fails to generate the event for any reason. For example, |
| * this can happen when there is no such key or mouse button |
| * or when the system event queue is full. |
| * </p> |
| * <p> |
| * <b>Event Types:</b> |
| * <p>KeyDown, KeyUp |
| * <p>The following fields in the <code>Event</code> apply: |
| * <ul> |
| * <li>(in) type KeyDown or KeyUp</li> |
| * <p> Either one of: |
| * <li>(in) character a character that corresponds to a keyboard key</li> |
| * <li>(in) keyCode the key code of the key that was typed, |
| * as defined by the key code constants in class <code>SWT</code></li> |
| * </ul> |
| * <p>MouseDown, MouseUp</p> |
| * <p>The following fields in the <code>Event</code> apply: |
| * <ul> |
| * <li>(in) type MouseDown or MouseUp |
| * <li>(in) button the button that is pressed or released |
| * </ul> |
| * <p>MouseMove</p> |
| * <p>The following fields in the <code>Event</code> apply: |
| * <ul> |
| * <li>(in) type MouseMove |
| * <li>(in) x the x coordinate to move the mouse pointer to in screen coordinates |
| * <li>(in) y the y coordinate to move the mouse pointer to in screen coordinates |
| * </ul> |
| * <p>MouseWheel</p> |
| * <p>The following fields in the <code>Event</code> apply: |
| * <ul> |
| * <li>(in) type MouseWheel |
| * <li>(in) detail either SWT.SCROLL_LINE or SWT.SCROLL_PAGE |
| * <li>(in) count the number of lines or pages to scroll |
| * </ul> |
| * </dl> |
| * |
| * @param event the event to be generated |
| * |
| * @return true if the event was generated or false otherwise |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the event is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 3.0 |
| * |
| */ |
| public boolean post (Event event) { |
| synchronized (Device.class) { |
| if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED); |
| if (event == null) error (SWT.ERROR_NULL_ARGUMENT); |
| // int type = event.type; |
| // switch (type){ |
| // case SWT.KeyDown: |
| // case SWT.KeyUp: { |
| // KEYBDINPUT inputs = new KEYBDINPUT (); |
| // inputs.wVk = (short) untranslateKey (event.keyCode); |
| // if (inputs.wVk == 0) { |
| // char key = event.character; |
| // switch (key) { |
| // case SWT.BS: inputs.wVk = (short) OS.VK_BACK; break; |
| // case SWT.CR: inputs.wVk = (short) OS.VK_RETURN; break; |
| // case SWT.DEL: inputs.wVk = (short) OS.VK_DELETE; break; |
| // case SWT.ESC: inputs.wVk = (short) OS.VK_ESCAPE; break; |
| // case SWT.TAB: inputs.wVk = (short) OS.VK_TAB; break; |
| // /* |
| // * Since there is no LF key on the keyboard, do not attempt |
| // * to map LF to CR or attempt to post an LF key. |
| // */ |
| // // case SWT.LF: inputs.wVk = (short) OS.VK_RETURN; break; |
| // case SWT.LF: return false; |
| // default: { |
| // if (OS.IsWinCE) { |
| // inputs.wVk = OS.CharUpper ((short) key); |
| // } else { |
| // inputs.wVk = OS.VkKeyScan ((short) wcsToMbcs (key, 0)); |
| // if (inputs.wVk == -1) return false; |
| // inputs.wVk &= 0xFF; |
| // } |
| // } |
| // } |
| // } |
| // inputs.dwFlags = type == SWT.KeyUp ? OS.KEYEVENTF_KEYUP : 0; |
| // int hHeap = OS.GetProcessHeap (); |
| // int pInputs = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, INPUT.sizeof); |
| // OS.MoveMemory(pInputs, new int[] {OS.INPUT_KEYBOARD}, 4); |
| // OS.MoveMemory (pInputs + 4, inputs, KEYBDINPUT.sizeof); |
| // boolean result = OS.SendInput (1, pInputs, INPUT.sizeof) != 0; |
| // OS.HeapFree (hHeap, 0, pInputs); |
| // return result; |
| // } |
| // case SWT.MouseDown: |
| // case SWT.MouseMove: |
| // case SWT.MouseUp: { |
| // MOUSEINPUT inputs = new MOUSEINPUT (); |
| // if (type == SWT.MouseMove){ |
| // inputs.dwFlags = OS.MOUSEEVENTF_MOVE | OS.MOUSEEVENTF_ABSOLUTE; |
| // inputs.dx = event.x * 65535 / (OS.GetSystemMetrics (OS.SM_CXSCREEN) - 1); |
| // inputs.dy = event.y * 65535 / (OS.GetSystemMetrics (OS.SM_CYSCREEN) - 1); |
| // } else { |
| // switch (event.button) { |
| // case 1: inputs.dwFlags = type == SWT.MouseDown ? OS.MOUSEEVENTF_LEFTDOWN : OS.MOUSEEVENTF_LEFTUP; break; |
| // case 2: inputs.dwFlags = type == SWT.MouseDown ? OS.MOUSEEVENTF_MIDDLEDOWN : OS.MOUSEEVENTF_MIDDLEUP; break; |
| // case 3: inputs.dwFlags = type == SWT.MouseDown ? OS.MOUSEEVENTF_RIGHTDOWN : OS.MOUSEEVENTF_RIGHTUP; break; |
| // default: return false; |
| // } |
| // } |
| // int hHeap = OS.GetProcessHeap (); |
| // int pInputs = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, INPUT.sizeof); |
| // OS.MoveMemory(pInputs, new int[] {OS.INPUT_MOUSE}, 4); |
| // OS.MoveMemory (pInputs + 4, inputs, MOUSEINPUT.sizeof); |
| // boolean result = OS.SendInput (1, pInputs, INPUT.sizeof) != 0; |
| // OS.HeapFree (hHeap, 0, pInputs); |
| // return result; |
| // } |
| // } |
| return false; |
| } |
| } |
| |
| void postEvent (Event event) { |
| /* |
| * Place the event at the end of the event queue. |
| * This code is always called in the Display's |
| * thread so it must be re-enterant but does not |
| * need to be synchronized. |
| */ |
| if (eventQueue == null) eventQueue = new Event [4]; |
| int index = 0; |
| int length = eventQueue.length; |
| while (index < length) { |
| if (eventQueue [index] == null) break; |
| index++; |
| } |
| if (index == length) { |
| Event [] newQueue = new Event [length + 4]; |
| System.arraycopy (eventQueue, 0, newQueue, 0, length); |
| eventQueue = newQueue; |
| } |
| eventQueue [index] = event; |
| } |
| |
| void removePopup (Menu menu) { |
| if (popups == null) return; |
| for (int i=0; i<popups.length; i++) { |
| if (popups [i] == menu) { |
| popups [i] = null; |
| return; |
| } |
| } |
| } |
| |
| void removeShell (Shell shell) { |
| if (shells == null) return; |
| for (int i=0; i<shells.length; i++) { |
| if (shells [i] == shell) { |
| shells [i] = null; |
| return; |
| } |
| } |
| } |
| |
| /** |
| * Reads an event from the operating system's event queue, |
| * dispatches it appropriately, and returns <code>true</code> |
| * if there is potentially more work to do, or <code>false</code> |
| * if the caller can sleep until another event is placed on |
| * the event queue. |
| * <p> |
| * In addition to checking the system event queue, this method also |
| * checks if any inter-thread messages (created by <code>syncExec()</code> |
| * or <code>asyncExec()</code>) are waiting to be processed, and if |
| * so handles them before returning. |
| * </p> |
| * |
| * @return <code>false</code> if the caller can sleep upon return from this method |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_FAILED_EXEC - if an exception occurred while running an inter-thread message</li> |
| * </ul> |
| * |
| * @see #sleep |
| * @see #wake |
| */ |
| public boolean readAndDispatch () { |
| checkDevice (); |
| runSkin (); |
| runDeferredLayouts (); |
| runPopups (); |
| idle = false; |
| int handler = OS.gcnew_NoArgsDelegate(jniRef, "setIdleHandler"); |
| operation = OS.Dispatcher_BeginInvoke(dispatcher, 2, handler); |
| OS.DispatcherOperation_Wait(operation); |
| OS.GCHandle_Free(handler); |
| OS.GCHandle_Free(operation); |
| operation = 0; |
| if (!idle) { |
| runDeferredEvents(); |
| return true; |
| } |
| return isDisposed () || runAsyncMessages(false); |
| } |
| |
| static void register (Display display) { |
| synchronized (Device.class) { |
| for (int i=0; i<Displays.length; i++) { |
| if (Displays [i] == null) { |
| Displays [i] = display; |
| return; |
| } |
| } |
| Display [] newDisplays = new Display [Displays.length + 4]; |
| System.arraycopy (Displays, 0, newDisplays, 0, Displays.length); |
| newDisplays [Displays.length] = display; |
| Displays = newDisplays; |
| } |
| } |
| |
| /** |
| * Releases any internal resources back to the operating |
| * system and clears all fields except the device handle. |
| * <p> |
| * Disposes all shells which are currently open on the display. |
| * After this method has been invoked, all related related shells |
| * will answer <code>true</code> when sent the message |
| * <code>isDisposed()</code>. |
| * </p><p> |
| * When a device is destroyed, resources that were acquired |
| * on behalf of the programmer need to be returned to the |
| * operating system. For example, if the device allocated a |
| * font to be used as the system font, this font would be |
| * freed in <code>release</code>. Also,to assist the garbage |
| * collector and minimize the amount of memory that is not |
| * reclaimed when the programmer keeps a reference to a |
| * disposed device, all fields except the handle are zero'd. |
| * The handle is needed by <code>destroy</code>. |
| * </p> |
| * This method is called before <code>destroy</code>. |
| * |
| * @see Device#dispose |
| * @see #destroy |
| */ |
| protected void release () { |
| sendEvent (SWT.Dispose, new Event ()); |
| Shell [] shells = getShells (); |
| for (int i=0; i<shells.length; i++) { |
| Shell shell = shells [i]; |
| if (!shell.isDisposed ()) shell.dispose (); |
| } |
| if (tray != null) tray.dispose (); |
| tray = null; |
| |
| //hack... readAndDispatch Always returns true right now, prevents apps from shutting down. |
| //while (readAndDispatch ()) {} |
| |
| if (disposeList != null) { |
| for (int i=0; i<disposeList.length; i++) { |
| if (disposeList [i] != null) disposeList [i].run (); |
| } |
| } |
| disposeList = null; |
| synchronizer.releaseSynchronizer (); |
| synchronizer = null; |
| releaseDisplay (); |
| super.release (); |
| } |
| |
| void releaseDisplay () { |
| /* Release the timers */ |
| OS.GCHandle_Free (timerHandler); |
| timerHandler = 0; |
| if (timerHandles != null) { |
| for (int i = 0; i < timerHandles.length; i++) { |
| int timer = timerHandles [i]; |
| if (timer != 0) { |
| OS.DispatcherTimer_Stop (timer); |
| OS.GCHandle_Free (timer); |
| } |
| } |
| } |
| timerHandles = null; |
| timerList = null; |
| if (nameScope != 0) OS.GCHandle_Free (nameScope); |
| nameScope = 0; |
| if (application != 0) { |
| OS.Application_Shutdown (application); |
| OS.GCHandle_Free (application); |
| } |
| application = 0; |
| if (dispatcher != 0) OS.GCHandle_Free (dispatcher); |
| dispatcher = 0; |
| if (frame != 0) OS.GCHandle_Free (frame); |
| frame = 0; |
| if (jniRef != 0) OS.DeleteGlobalRef (jniRef); |
| jniRef = 0; |
| |
| for (int i = 0; i < colors.length; i++) { |
| if (colors [i] != null) colors [i].dispose (); |
| } |
| colors = null; |
| |
| // /* Release the System fonts */ |
| // if (systemFont != null) systemFont.dispose (); |
| // systemFont = null; |
| // lfSystemFont = null; |
| |
| /* Release the System Images */ |
| if (errorImage != null) errorImage.dispose (); |
| if (infoImage != null) infoImage.dispose (); |
| if (questionImage != null) questionImage.dispose (); |
| if (warningIcon != null) warningIcon.dispose (); |
| errorImage = infoImage = questionImage = warningIcon = null; |
| |
| /* Release the System Cursors */ |
| for (int i = 0; i < cursors.length; i++) { |
| if (cursors [i] != null) cursors [i].dispose (); |
| } |
| cursors = null; |
| |
| // /* Release Acquired Resources */ |
| // if (resources != null) { |
| // for (int i=0; i<resources.length; i++) { |
| // if (resources [i] != null) resources [i].dispose (); |
| // } |
| // resources = null; |
| // } |
| // |
| /* Release Custom Colors for ChooseColor */ |
| if (customColors != 0) OS.GCHandle_Free (customColors); |
| customColors = 0; |
| |
| /* Release references */ |
| thread = null; |
| // modalDialogShell = null; |
| modalShells = null; |
| data = null; |
| keys = null; |
| values = null; |
| popups = null; |
| mouseControl = null; |
| shells = null; |
| eventTable = filterTable = null; |
| |
| /* Uninitialize OLE */ |
| Win32.OleUninitialize (); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when an event of the given type occurs anywhere in |
| * a widget. The event type is one of the event constants defined |
| * in class <code>SWT</code>. |
| * |
| * @param eventType the type of event to listen for |
| * @param listener the listener which should no longer be notified when the event occurs |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see Listener |
| * @see SWT |
| * @see #addFilter |
| * @see #addListener |
| * |
| * @since 3.0 |
| */ |
| public void removeFilter (int eventType, Listener listener) { |
| checkDevice (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (filterTable == null) return; |
| filterTable.unhook (eventType, listener); |
| if (filterTable.size () == 0) filterTable = null; |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when an event of the given type occurs. The event type |
| * is one of the event constants defined in class <code>SWT</code>. |
| * |
| * @param eventType the type of event to listen for |
| * @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_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see Listener |
| * @see SWT |
| * @see #addListener |
| * |
| * @since 2.0 |
| */ |
| public void removeListener (int eventType, Listener listener) { |
| checkDevice (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (eventType, listener); |
| } |
| |
| Widget removeWidget (int handle) { |
| if (handle == 0) return null; |
| int tag = OS.FrameworkElement_Tag (handle), ref = 0; |
| if (tag != 0) { |
| ref = OS.IntPtr_ToInt32(tag); |
| OS.GCHandle_Free(tag); |
| } |
| Widget widget = null; |
| if (ref != 0) { |
| OS.FrameworkElement_Tag (handle, 0); |
| widget = (Widget) OS.JNIGetObject (ref); |
| } |
| return widget; |
| } |
| |
| boolean runAsyncMessages (boolean all) { |
| return synchronizer.runAsyncMessages (all); |
| } |
| |
| boolean runDeferredEvents () { |
| boolean run = false; |
| /* |
| * Run deferred events. This code is always |
| * called in the Display's thread so it must |
| * be re-enterant but need not be synchronized. |
| */ |
| while (eventQueue != null) { |
| |
| /* Take an event off the queue */ |
| Event event = eventQueue [0]; |
| if (event == null) break; |
| int length = eventQueue.length; |
| System.arraycopy (eventQueue, 1, eventQueue, 0, --length); |
| eventQueue [length] = null; |
| |
| /* Run the event */ |
| Widget widget = event.widget; |
| if (widget != null && !widget.isDisposed ()) { |
| Widget item = event.item; |
| if (item == null || !item.isDisposed ()) { |
| run = true; |
| widget.sendEvent (event); |
| } |
| } |
| |
| /* |
| * At this point, the event queue could |
| * be null due to a recursive invokation |
| * when running the event. |
| */ |
| } |
| |
| /* Clear the queue */ |
| eventQueue = null; |
| return run; |
| } |
| |
| boolean runDeferredLayouts () { |
| if (layoutDeferredCount != 0) { |
| Composite[] temp = layoutDeferred; |
| int count = layoutDeferredCount; |
| layoutDeferred = null; |
| layoutDeferredCount = 0; |
| for (int i = 0; i < count; i++) { |
| Composite comp = temp[i]; |
| if (!comp.isDisposed()) comp.setLayoutDeferred (false); |
| } |
| return true; |
| } |
| return false; |
| } |
| |
| boolean runPopups () { |
| if (popups == null) return false; |
| boolean result = false; |
| while (popups != null) { |
| Menu menu = popups [0]; |
| if (menu == null) break; |
| int length = popups.length; |
| System.arraycopy (popups, 1, popups, 0, --length); |
| popups [length] = null; |
| runDeferredEvents (); |
| if (!menu.isDisposed()) menu._setVisible (true); |
| result = true; |
| } |
| popups = null; |
| return result; |
| } |
| |
| void runSettings () { |
| Font oldFont = getSystemFont (); |
| saveResources (); |
| // updateImages (); |
| sendEvent (SWT.Settings, null); |
| Font newFont = getSystemFont (); |
| boolean sameFont = oldFont.equals (newFont); |
| Shell [] shells = getShells (); |
| for (int i=0; i<shells.length; i++) { |
| Shell shell = shells [i]; |
| if (!shell.isDisposed ()) { |
| if (!sameFont) { |
| shell.updateFont (oldFont, newFont); |
| } |
| /* This code is intentionally commented */ |
| //shell.redraw (true); |
| shell.layout (true, true); |
| } |
| } |
| } |
| |
| boolean runSkin () { |
| if (skinCount > 0) { |
| Widget [] oldSkinWidgets = skinList; |
| int count = skinCount; |
| skinList = new Widget[GROW_SIZE]; |
| skinCount = 0; |
| if (eventTable != null && eventTable.hooks(SWT.Skin)) { |
| for (int i = 0; i < count; i++) { |
| Widget widget = oldSkinWidgets[i]; |
| if (widget != null && !widget.isDisposed()) { |
| widget.state &= ~Widget.SKIN_NEEDED; |
| oldSkinWidgets[i] = null; |
| Event event = new Event (); |
| event.widget = widget; |
| sendEvent (SWT.Skin, event); |
| } |
| } |
| } |
| return true; |
| } |
| return false; |
| } |
| |
| void saveResources () { |
| // int resourceCount = 0; |
| // if (resources == null) { |
| // resources = new Resource [RESOURCE_SIZE]; |
| // } else { |
| // resourceCount = resources.length; |
| // Resource [] newResources = new Resource [resourceCount + RESOURCE_SIZE]; |
| // System.arraycopy (resources, 0, newResources, 0, resourceCount); |
| // resources = newResources; |
| // } |
| // if (systemFont != null) { |
| // if (!OS.IsWinCE) { |
| // NONCLIENTMETRICS info = OS.IsUnicode ? (NONCLIENTMETRICS) new NONCLIENTMETRICSW () : new NONCLIENTMETRICSA (); |
| // info.cbSize = NONCLIENTMETRICS.sizeof; |
| // if (OS.SystemParametersInfo (OS.SPI_GETNONCLIENTMETRICS, 0, info, 0)) { |
| // LOGFONT logFont = OS.IsUnicode ? (LOGFONT) ((NONCLIENTMETRICSW)info).lfMessageFont : ((NONCLIENTMETRICSA)info).lfMessageFont; |
| // if (lfSystemFont == null || |
| // logFont.lfCharSet != lfSystemFont.lfCharSet || |
| // logFont.lfHeight != lfSystemFont.lfHeight || |
| // logFont.lfWidth != lfSystemFont.lfWidth || |
| // logFont.lfEscapement != lfSystemFont.lfEscapement || |
| // logFont.lfOrientation != lfSystemFont.lfOrientation || |
| // logFont.lfWeight != lfSystemFont.lfWeight || |
| // logFont.lfItalic != lfSystemFont.lfItalic || |
| // logFont.lfUnderline != lfSystemFont.lfUnderline || |
| // logFont.lfStrikeOut != lfSystemFont.lfStrikeOut || |
| // logFont.lfCharSet != lfSystemFont.lfCharSet || |
| // logFont.lfOutPrecision != lfSystemFont.lfOutPrecision || |
| // logFont.lfClipPrecision != lfSystemFont.lfClipPrecision || |
| // logFont.lfQuality != lfSystemFont.lfQuality || |
| // logFont.lfPitchAndFamily != lfSystemFont.lfPitchAndFamily || |
| // !getFontName (logFont).equals (getFontName (lfSystemFont))) { |
| // resources [resourceCount++] = systemFont; |
| // lfSystemFont = logFont; |
| // systemFont = null; |
| // } |
| // } |
| // } |
| // } |
| // if (errorImage != null) resources [resourceCount++] = errorImage; |
| // if (infoImage != null) resources [resourceCount++] = infoImage; |
| // if (questionImage != null) resources [resourceCount++] = questionImage; |
| // if (warningIcon != null) resources [resourceCount++] = warningIcon; |
| // errorImage = infoImage = questionImage = warningIcon = null; |
| // for (int i=0; i<cursors.length; i++) { |
| // if (cursors [i] != null) resources [resourceCount++] = cursors [i]; |
| // cursors [i] = null; |
| // } |
| // if (resourceCount < RESOURCE_SIZE) { |
| // Resource [] newResources = new Resource [resourceCount]; |
| // System.arraycopy (resources, 0, newResources, 0, resourceCount); |
| // resources = newResources; |
| // } |
| } |
| |
| void sendEvent (int eventType, Event event) { |
| if (eventTable == null && filterTable == null) { |
| return; |
| } |
| if (event == null) event = new Event (); |
| event.display = this; |
| event.type = eventType; |
| if (event.time == 0) event.time = getLastEventTime (); |
| if (!filterEvent (event)) { |
| if (eventTable != null) eventTable.sendEvent (event); |
| } |
| } |
| |
| /** |
| * Sets the location of the on-screen pointer relative to the top left corner |
| * of the screen. <b>Note: It is typically considered bad practice for a |
| * program to move the on-screen pointer location.</b> |
| * |
| * @param x the new x coordinate for the cursor |
| * @param y the new y coordinate for the cursor |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 2.1 |
| */ |
| public void setCursorLocation (int x, int y) { |
| checkDevice (); |
| Win32.SetCursorPos (x, y); |
| } |
| |
| /** |
| * Sets the location of the on-screen pointer relative to the top left corner |
| * of the screen. <b>Note: It is typically considered bad practice for a |
| * program to move the on-screen pointer location.</b> |
| * |
| * @param point new position |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_NULL_ARGUMENT - if the point is null |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 2.0 |
| */ |
| public void setCursorLocation (Point point) { |
| checkDevice (); |
| if (point == null) error (SWT.ERROR_NULL_ARGUMENT); |
| setCursorLocation (point.x, point.y); |
| } |
| |
| /** |
| * Sets the application defined property of the receiver |
| * with the specified name to the given argument. |
| * <p> |
| * Applications may have associated arbitrary objects with the |
| * receiver in this fashion. If the objects stored in the |
| * properties need to be notified when the display is disposed |
| * of, it is the application's responsibility provide a |
| * <code>disposeExec()</code> handler which does so. |
| * </p> |
| * |
| * @param key the name of the property |
| * @param value the new value for the property |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the key is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see #getData(String) |
| * @see #disposeExec(Runnable) |
| */ |
| public void setData (String key, Object value) { |
| checkDevice (); |
| if (key == null) error (SWT.ERROR_NULL_ARGUMENT); |
| |
| // if (key.equals (RUN_MESSAGES_IN_IDLE_KEY)) { |
| // Boolean data = (Boolean) value; |
| // runMessagesInIdle = data != null && data.booleanValue (); |
| // return; |
| // } |
| |
| /* Remove the key/value pair */ |
| if (value == null) { |
| if (keys == null) return; |
| int index = 0; |
| while (index < keys.length && !keys [index].equals (key)) index++; |
| if (index == keys.length) return; |
| if (keys.length == 1) { |
| keys = null; |
| values = null; |
| } else { |
| String [] newKeys = new String [keys.length - 1]; |
| Object [] newValues = new Object [values.length - 1]; |
| System.arraycopy (keys, 0, newKeys, 0, index); |
| System.arraycopy (keys, index + 1, newKeys, index, newKeys.length - index); |
| System.arraycopy (values, 0, newValues, 0, index); |
| System.arraycopy (values, index + 1, newValues, index, newValues.length - index); |
| keys = newKeys; |
| values = newValues; |
| } |
| return; |
| } |
| |
| /* Add the key/value pair */ |
| if (keys == null) { |
| keys = new String [] {key}; |
| values = new Object [] {value}; |
| return; |
| } |
| for (int i=0; i<keys.length; i++) { |
| if (keys [i].equals (key)) { |
| values [i] = value; |
| return; |
| } |
| } |
| String [] newKeys = new String [keys.length + 1]; |
| Object [] newValues = new Object [values.length + 1]; |
| System.arraycopy (keys, 0, newKeys, 0, keys.length); |
| System.arraycopy (values, 0, newValues, 0, values.length); |
| newKeys [keys.length] = key; |
| newValues [values.length] = value; |
| keys = newKeys; |
| values = newValues; |
| } |
| |
| /** |
| * Sets the application defined, display specific data |
| * associated with the receiver, to the argument. |
| * The <em>display specific data</em> is a single, |
| * unnamed field that is stored with every display. |
| * <p> |
| * Applications may put arbitrary objects in this field. If |
| * the object stored in the display specific data needs to |
| * be notified when the display is disposed of, it is the |
| * application's responsibility provide a |
| * <code>disposeExec()</code> handler which does so. |
| * </p> |
| * |
| * @param data the new display specific data |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see #getData() |
| * @see #disposeExec(Runnable) |
| */ |
| public void setData (Object data) { |
| checkDevice (); |
| this.data = data; |
| } |
| |
| /** |
| * Returns the application name. |
| * |
| * @return the application name |
| * |
| * @see #setAppName(String) |
| * |
| * @since 3.6 |
| */ |
| public static String getAppName () { |
| return APP_NAME; |
| } |
| |
| /** |
| * Returns the application version. |
| * |
| * @return the application version |
| * |
| * @see #setAppVersion(String) |
| * |
| * @since 3.6 |
| */ |
| public static String getAppVersion () { |
| return APP_VERSION; |
| } |
| |
| /** |
| * Sets the application name to the argument. |
| * <p> |
| * The application name can be used in several ways, |
| * depending on the platform and tools being used. |
| * On Motif, for example, this can be used to set |
| * the name used for resource lookup. Accessibility |
| * tools may also ask for the application name. |
| * </p><p> |
| * Specifying <code>null</code> for the name clears it. |
| * </p> |
| * |
| * @param name the new app name or <code>null</code> |
| */ |
| public static void setAppName (String name) { |
| APP_NAME = name; |
| } |
| |
| /** |
| * Sets the application version to the argument. |
| * |
| * @param version the new app version |
| * |
| * @since 3.6 |
| */ |
| public static void setAppVersion (String version) { |
| APP_VERSION = version; |
| } |
| |
| //void setModalDialogShell (Shell modalDailog) { |
| // if (modalDialogShell != null && modalDialogShell.isDisposed ()) modalDialogShell = null; |
| // this.modalDialogShell = modalDailog; |
| // Shell [] shells = getShells (); |
| // for (int i=0; i<shells.length; i++) shells [i].updateModal (); |
| //} |
| |
| void setIdleHandler () { |
| idle = true; |
| } |
| |
| void setModalShell (Shell shell) { |
| if (modalShells == null) modalShells = new Shell [4]; |
| int index = 0, length = modalShells.length; |
| while (index < length) { |
| if (modalShells [index] == shell) return; |
| if (modalShells [index] == null) break; |
| index++; |
| } |
| if (index == length) { |
| Shell [] newModalShells = new Shell [length + 4]; |
| System.arraycopy (modalShells, 0, newModalShells, 0, length); |
| modalShells = newModalShells; |
| } |
| modalShells [index] = shell; |
| Shell [] shells = getShells (); |
| for (int i=0; i<shells.length; i++) shells [i].updateModal (); |
| } |
| |
| /** |
| * Sets the synchronizer used by the display to be |
| * the argument, which can not be null. |
| * |
| * @param synchronizer the new synchronizer for the display (must not be null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the synchronizer is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_FAILED_EXEC - if an exception occurred while running an inter-thread message</li> |
| * </ul> |
| */ |
| public void setSynchronizer (Synchronizer synchronizer) { |
| checkDevice (); |
| if (synchronizer == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (synchronizer == this.synchronizer) return; |
| Synchronizer oldSynchronizer; |
| synchronized (Device.class) { |
| oldSynchronizer = this.synchronizer; |
| this.synchronizer = synchronizer; |
| } |
| if (oldSynchronizer != null) { |
| oldSynchronizer.runAsyncMessages(true); |
| } |
| } |
| |
| /** |
| * Causes the user-interface thread to <em>sleep</em> (that is, |
| * to be put in a state where it does not consume CPU cycles) |
| * until an event is received or it is otherwise awakened. |
| * |
| * @return <code>true</code> if an event requiring dispatching was placed on the queue. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see #wake |
| */ |
| public boolean sleep () { |
| checkDevice (); |
| int handler = OS.gcnew_NoArgsDelegate (jniRef, "sleep_noop"); |
| sleepOperation = OS.Dispatcher_BeginInvoke(dispatcher, OS.DispatcherPriority_Inactive, handler); |
| OS.DispatcherOperation_Wait(sleepOperation); |
| OS.GCHandle_Free(handler); |
| OS.GCHandle_Free(sleepOperation); |
| sleepOperation = 0; |
| return true; |
| } |
| |
| void sleep_noop() { |
| } |
| |
| /** |
| * Causes the <code>run()</code> method of the runnable to |
| * be invoked by the user-interface thread at the next |
| * reasonable opportunity. The thread which calls this method |
| * is suspended until the runnable completes. Specifying <code>null</code> |
| * as the runnable simply wakes the user-interface thread. |
| * <p> |
| * Note that at the time the runnable is invoked, widgets |
| * that have the receiver as their display may have been |
| * disposed. Therefore, it is necessary to check for this |
| * case inside the runnable before accessing the widget. |
| * </p> |
| * |
| * @param runnable code to run on the user-interface thread or <code>null</code> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_FAILED_EXEC - if an exception occurred when executing the runnable</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see #asyncExec |
| */ |
| public void syncExec (Runnable runnable) { |
| Synchronizer synchronizer; |
| synchronized (Device.class) { |
| if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED); |
| synchronizer = this.synchronizer; |
| } |
| synchronizer.syncExec (runnable); |
| } |
| |
| /** |
| * Causes the <code>run()</code> method of the runnable to |
| * be invoked by the user-interface thread after the specified |
| * number of milliseconds have elapsed. If milliseconds is less |
| * than zero, the runnable is not executed. |
| * <p> |
| * Note that at the time the runnable is invoked, widgets |
| * that have the receiver as their display may have been |
| * disposed. Therefore, it is necessary to check for this |
| * case inside the runnable before accessing the widget. |
| * </p> |
| * |
| * @param milliseconds the delay before running the runnable |
| * @param runnable code to run on the user-interface thread |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the runnable is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see #asyncExec |
| */ |
| public void timerExec (int milliseconds, Runnable runnable) { |
| checkDevice (); |
| if (runnable == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (timerList == null) timerList = new Runnable [4]; |
| if (timerHandles == null) timerHandles = new int [4]; |
| int index = 0; |
| while (index < timerList.length) { |
| if (timerList [index] == runnable) break; |
| index++; |
| } |
| int timer = 0; |
| if (index != timerList.length) { |
| timer = timerHandles [index]; |
| if (milliseconds < 0) { |
| OS.DispatcherTimer_Stop (timer); |
| timerList [index] = null; |
| OS.GCHandle_Free (timer); |
| timerHandles [index] = 0; |
| return; |
| } |
| } else { |
| if (milliseconds < 0) return; |
| index = 0; |
| while (index < timerList.length) { |
| if (timerList [index] == null) break; |
| index++; |
| } |
| if (index == timerList.length) { |
| Runnable [] newTimerList = new Runnable [timerList.length + 4]; |
| System.arraycopy (timerList, 0, newTimerList, 0, timerList.length); |
| timerList = newTimerList; |
| int [] newTimerHandles = new int [timerHandles.length + 4]; |
| System.arraycopy (timerHandles, 0, newTimerHandles, 0, timerHandles.length); |
| timerHandles = newTimerHandles; |
| } |
| } |
| if (timer == 0) timer = OS.gcnew_DispatcherTimer(); |
| if (timer != 0) { |
| OS.DispatcherTimer_Tag (timer, index); |
| int timeSpan = OS.TimeSpan_FromMilliseconds (milliseconds); |
| OS.DispatcherTimer_Interval(timer, timeSpan); |
| OS.DispatcherTimer_Tick (timer, timerHandler); |
| OS.DispatcherTimer_Start (timer); |
| timerList [index] = runnable; |
| timerHandles [index] = timer; |
| OS.GCHandle_Free (timeSpan); |
| } |
| } |
| |
| void timerProc (int index, int e) { |
| if (0 <= index && index < timerHandles.length) { |
| int timer = timerHandles [index]; |
| if (timer != 0) { |
| OS.DispatcherTimer_Stop (timer); |
| OS.GCHandle_Free (timer); |
| timerHandles [index] = 0; |
| Runnable runnable = timerList [index]; |
| timerList [index] = null; |
| runnable.run (); |
| } |
| } |
| } |
| |
| static int translateKey (int key) { |
| for (int i=0; i<KeyTable.length; i++) { |
| if (KeyTable [i] [0] == key) return KeyTable [i] [1]; |
| } |
| return 0; |
| } |
| |
| static int untranslateKey (int key) { |
| for (int i=0; i<KeyTable.length; i++) { |
| if (KeyTable [i] [1] == key) return KeyTable [i] [0]; |
| } |
| return 0; |
| } |
| |
| /** |
| * Forces all outstanding paint requests for the display |
| * to be processed before this method returns. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see Control#update() |
| */ |
| public void update() { |
| checkDevice (); |
| Shell[] shells = getShells (); |
| for (int i=0; i<shells.length; i++) { |
| Shell shell = shells [i]; |
| if (!shell.isDisposed ()) shell.update (true); |
| } |
| } |
| |
| /** |
| * If the receiver's user-interface thread was <code>sleep</code>ing, |
| * causes it to be awakened and start running again. Note that this |
| * method may be called from any thread. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see #sleep |
| */ |
| public void wake () { |
| synchronized (Device.class) { |
| if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED); |
| if (thread == Thread.currentThread ()) return; |
| wakeThread (); |
| } |
| } |
| |
| void wakeThreadHandler () { |
| } |
| |
| void wakeThread () { |
| int handler = OS.gcnew_NoArgsDelegate (jniRef, "wakeThreadHandler"); |
| int operation = OS.Dispatcher_BeginInvoke (dispatcher, OS.DispatcherPriority_Normal, handler); |
| OS.GCHandle_Free (operation); |
| OS.GCHandle_Free (handler); |
| } |
| |
| } |