| /******************************************************************************* |
| * Copyright (c) 2000, 2003 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.swt.widgets; |
| |
| |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.internal.*; |
| import org.eclipse.swt.internal.gtk.*; |
| 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</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 |
| */ |
| public class Display extends Device { |
| |
| /** |
| * (Warning: This field is only present on GTK) |
| */ |
| public int [] dispatchEvents; |
| |
| /* Events Dispatching and Callback */ |
| int gdkEventCount; |
| int /*long*/ [] gdkEvents; |
| Widget [] gdkEventWidgets; |
| Event [] eventQueue; |
| Callback eventCallback; |
| GdkEventButton gdkEvent = new GdkEventButton (); |
| int /*long*/ eventProc, windowProc2, windowProc3, windowProc4, windowProc5; |
| Callback windowCallback2, windowCallback3, windowCallback4, windowCallback5; |
| EventTable eventTable, filterTable; |
| static String APP_NAME = "SWT"; |
| |
| /* Widget Table */ |
| int freeSlot; |
| int [] indexTable; |
| Widget [] widgetTable; |
| final static int GROW_SIZE = 1024; |
| static final int SWT_OBJECT_INDEX; |
| static { |
| byte [] buffer = Converter.wcsToMbcs (null, "SWT_OBJECT_INDEX", true); |
| SWT_OBJECT_INDEX = OS.g_quark_from_string (buffer); |
| } |
| |
| /* Input method resources */ |
| Control imControl; |
| int /*long*/ preeditWindow, preeditLabel; |
| |
| /* Sync/Async Widget Communication */ |
| Synchronizer synchronizer = new Synchronizer (this); |
| Thread thread; |
| |
| /* Display Shutdown */ |
| Runnable [] disposeList; |
| |
| /* System Tray */ |
| Tray tray; |
| |
| /* Timers */ |
| int [] timerIds; |
| Runnable [] timerList; |
| Callback timerCallback; |
| int /*long*/ timerProc; |
| Callback windowTimerCallback; |
| int /*long*/ windowTimerProc; |
| |
| /* Caret */ |
| Caret currentCaret; |
| Callback caretCallback; |
| int caretId; |
| int /*long*/ caretProc; |
| |
| /* Mnemonics */ |
| Control mnemonicControl; |
| |
| /* Mouse hover */ |
| int mouseHoverId; |
| int /*long*/ mouseHoverHandle, mouseHoverProc; |
| Callback mouseHoverCallback; |
| |
| /* Menu position callback */ |
| int /*long*/ menuPositionProc; |
| Callback menuPositionCallback; |
| |
| /* Shell map callback */ |
| int /*long*/ shellMapProc; |
| Callback shellMapCallback; |
| |
| /* GtkTreeView callbacks */ |
| int[] treeSelection; |
| int treeSelectionLength; |
| int /*long*/ treeSelectionProc; |
| Callback treeSelectionCallback; |
| int /*long*/ textCellDataProc; |
| Callback textCellDataCallback; |
| int /*long*/ pixbufCellDataProc; |
| Callback pixbufCellDataCallback; |
| |
| /* Drag Detect */ |
| int dragStartX,dragStartY; |
| boolean dragging; |
| |
| /* Fonts */ |
| int /*long*/ defaultFont; |
| |
| /* System Images */ |
| int /*long*/ errorPixmap, infoPixmap, questionPixmap, warningPixmap; |
| int /*long*/ errorMask, infoMask, questionMask, warningMask; |
| |
| /* System Cursors */ |
| Cursor [] cursors = new Cursor [SWT.CURSOR_HAND + 1]; |
| |
| /* Colors */ |
| GdkColor COLOR_WIDGET_DARK_SHADOW, COLOR_WIDGET_NORMAL_SHADOW, COLOR_WIDGET_LIGHT_SHADOW; |
| GdkColor COLOR_WIDGET_HIGHLIGHT_SHADOW, COLOR_WIDGET_BACKGROUND, COLOR_WIDGET_FOREGROUND, COLOR_WIDGET_BORDER; |
| GdkColor COLOR_LIST_FOREGROUND, COLOR_LIST_BACKGROUND, COLOR_LIST_SELECTION, COLOR_LIST_SELECTION_TEXT; |
| GdkColor COLOR_TEXT_FOREGROUND, COLOR_TEXT_BACKGROUND, COLOR_INFO_BACKGROUND, COLOR_INFO_FOREGROUND; |
| GdkColor COLOR_TITLE_FOREGROUND, COLOR_TITLE_BACKGROUND, COLOR_TITLE_BACKGROUND_GRADIENT; |
| GdkColor COLOR_TITLE_INACTIVE_FOREGROUND, COLOR_TITLE_INACTIVE_BACKGROUND, COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT; |
| |
| /* Popup Menus */ |
| Menu [] popups; |
| int popupTime; |
| |
| /* Key Mappings */ |
| static final int [] [] KeyTable = { |
| |
| /* Keyboard and Mouse Masks */ |
| {OS.GDK_Alt_L, SWT.ALT}, |
| {OS.GDK_Alt_R, SWT.ALT}, |
| {OS.GDK_Meta_L, SWT.ALT}, |
| {OS.GDK_Meta_R, SWT.ALT}, |
| {OS.GDK_Shift_L, SWT.SHIFT}, |
| {OS.GDK_Shift_R, SWT.SHIFT}, |
| {OS.GDK_Control_L, SWT.CONTROL}, |
| {OS.GDK_Control_R, SWT.CONTROL}, |
| // {OS.GDK_????, SWT.COMMAND}, |
| // {OS.GDK_????, SWT.COMMAND}, |
| |
| /* Non-Numeric Keypad Keys */ |
| {OS.GDK_Up, SWT.ARROW_UP}, |
| {OS.GDK_KP_Up, SWT.ARROW_UP}, |
| {OS.GDK_Down, SWT.ARROW_DOWN}, |
| {OS.GDK_KP_Down, SWT.ARROW_DOWN}, |
| {OS.GDK_Left, SWT.ARROW_LEFT}, |
| {OS.GDK_KP_Left, SWT.ARROW_LEFT}, |
| {OS.GDK_Right, SWT.ARROW_RIGHT}, |
| {OS.GDK_KP_Right, SWT.ARROW_RIGHT}, |
| {OS.GDK_Page_Up, SWT.PAGE_UP}, |
| {OS.GDK_KP_Page_Up, SWT.PAGE_UP}, |
| {OS.GDK_Page_Down, SWT.PAGE_DOWN}, |
| {OS.GDK_KP_Page_Down, SWT.PAGE_DOWN}, |
| {OS.GDK_Home, SWT.HOME}, |
| {OS.GDK_KP_Home, SWT.HOME}, |
| {OS.GDK_End, SWT.END}, |
| {OS.GDK_KP_End, SWT.END}, |
| {OS.GDK_Insert, SWT.INSERT}, |
| {OS.GDK_KP_Insert, SWT.INSERT}, |
| |
| /* Virtual and Ascii Keys */ |
| {OS.GDK_BackSpace, SWT.BS}, |
| {OS.GDK_Return, SWT.CR}, |
| {OS.GDK_Delete, SWT.DEL}, |
| {OS.GDK_KP_Delete, SWT.DEL}, |
| {OS.GDK_Escape, SWT.ESC}, |
| {OS.GDK_Linefeed, SWT.LF}, |
| {OS.GDK_Tab, SWT.TAB}, |
| {OS.GDK_ISO_Left_Tab, SWT.TAB}, |
| |
| /* Functions Keys */ |
| {OS.GDK_F1, SWT.F1}, |
| {OS.GDK_F2, SWT.F2}, |
| {OS.GDK_F3, SWT.F3}, |
| {OS.GDK_F4, SWT.F4}, |
| {OS.GDK_F5, SWT.F5}, |
| {OS.GDK_F6, SWT.F6}, |
| {OS.GDK_F7, SWT.F7}, |
| {OS.GDK_F8, SWT.F8}, |
| {OS.GDK_F9, SWT.F9}, |
| {OS.GDK_F10, SWT.F10}, |
| {OS.GDK_F11, SWT.F11}, |
| {OS.GDK_F12, SWT.F12}, |
| {OS.GDK_F13, SWT.F13}, |
| {OS.GDK_F14, SWT.F14}, |
| {OS.GDK_F15, SWT.F15}, |
| |
| /* Numeric Keypad Keys */ |
| {OS.GDK_KP_Multiply, SWT.KEYPAD_MULTIPLY}, |
| {OS.GDK_KP_Add, SWT.KEYPAD_ADD}, |
| {OS.GDK_KP_Enter, SWT.KEYPAD_CR}, |
| {OS.GDK_KP_Subtract, SWT.KEYPAD_SUBTRACT}, |
| {OS.GDK_KP_Decimal, SWT.KEYPAD_DECIMAL}, |
| {OS.GDK_KP_Divide, SWT.KEYPAD_DIVIDE}, |
| {OS.GDK_KP_0, SWT.KEYPAD_0}, |
| {OS.GDK_KP_1, SWT.KEYPAD_1}, |
| {OS.GDK_KP_2, SWT.KEYPAD_2}, |
| {OS.GDK_KP_3, SWT.KEYPAD_3}, |
| {OS.GDK_KP_4, SWT.KEYPAD_4}, |
| {OS.GDK_KP_5, SWT.KEYPAD_5}, |
| {OS.GDK_KP_6, SWT.KEYPAD_6}, |
| {OS.GDK_KP_7, SWT.KEYPAD_7}, |
| {OS.GDK_KP_8, SWT.KEYPAD_8}, |
| {OS.GDK_KP_9, SWT.KEYPAD_9}, |
| {OS.GDK_KP_Equal, SWT.KEYPAD_EQUAL}, |
| |
| /* Other keys */ |
| {OS.GDK_Caps_Lock, SWT.CAPS_LOCK}, |
| {OS.GDK_Num_Lock, SWT.NUM_LOCK}, |
| {OS.GDK_Scroll_Lock, SWT.SCROLL_LOCK}, |
| {OS.GDK_Pause, SWT.PAUSE}, |
| {OS.GDK_Break, SWT.BREAK}, |
| {OS.GDK_Print, SWT.PRINT_SCREEN}, |
| {OS.GDK_Help, SWT.HELP}, |
| |
| }; |
| |
| /* Multiple Displays. */ |
| static Display Default; |
| static Display [] Displays = new Display [4]; |
| |
| /* Package name */ |
| static final String PACKAGE_PREFIX = "org.eclipse.swt.widgets."; |
| /* This code is intentionally commented. |
| * ".class" can not be used on CLDC. |
| */ |
| /*static { |
| String name = Display.class.getName (); |
| int index = name.lastIndexOf ('.'); |
| PACKAGE_NAME = name.substring (0, index + 1); |
| }*/ |
| |
| /* |
| * In order to support CLDC, .class cannot be used because |
| * it does not compile on some Java compilers when they are |
| * targeted for CLDC. Use Class.forName() instead. |
| */ |
| static final Class OS_LOCK; |
| static { |
| Class lock = null; |
| try { |
| lock = Class.forName ("org.eclipse.swt.internal.gtk.OS"); |
| } catch (Throwable th) { |
| } |
| OS_LOCK = lock; |
| } |
| |
| /* #define in gdkevents.h */ |
| static final int DOUBLE_CLICK_TIME = 250; |
| |
| /* GTK Version */ |
| static final int MAJOR = 2; |
| static final int MINOR = 0; |
| static final int MICRO = 6; |
| |
| /* Display Data */ |
| Object data; |
| String [] keys; |
| Object [] values; |
| |
| /* Initial Guesses for Shell Trimmings. */ |
| int borderTrimWidth = 4, borderTrimHeight = 4; |
| int resizeTrimWidth = 6, resizeTrimHeight = 6; |
| int titleBorderTrimWidth = 5, titleBorderTrimHeight = 28; |
| int titleResizeTrimWidth = 6, titleResizeTrimHeight = 29; |
| int titleTrimWidth = 0, titleTrimHeight = 23; |
| |
| /* |
| * 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 not called from the thread that created the parent</li> |
| * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
| * </ul> |
| * |
| * @see #getCurrent |
| * @see #getDefault |
| * @see Widget#checkSubclass |
| * @see Shell |
| */ |
| public Display () { |
| this (null); |
| } |
| |
| public Display (DeviceData data) { |
| super (data); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notifed when an event of the given type occurs anywhere |
| * in this display. When the event does occur, 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 #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 addGdkEvent (int /*long*/ event) { |
| if (gdkEvents == null) { |
| gdkEvents = new int /*long*/ [4]; |
| gdkEventWidgets = new Widget [4]; |
| } |
| if (gdkEventCount == gdkEvents.length) { |
| int /*long*/ [] newEvents = new int /*long*/ [gdkEventCount + 4]; |
| System.arraycopy (gdkEvents, 0, newEvents, 0, gdkEventCount); |
| gdkEvents = newEvents; |
| Widget [] newWidgets = new Widget [gdkEventCount + 4]; |
| System.arraycopy (gdkEventWidgets, 0, newWidgets, 0, gdkEventCount); |
| gdkEventWidgets = newWidgets; |
| } |
| Widget widget = null; |
| int /*long*/ handle = OS.gtk_get_event_widget (event); |
| if (handle != 0) { |
| do { |
| widget = getWidget (handle); |
| } while (widget == null && (handle = OS.gtk_widget_get_parent (handle)) != 0); |
| } |
| gdkEvents [gdkEventCount] = event; |
| gdkEventWidgets [gdkEventCount] = widget; |
| gdkEventCount++; |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notifed when an event of the given type occurs. 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 #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 addMouseHoverTimeout (int /*long*/ handle) { |
| if (mouseHoverId != 0) OS.gtk_timeout_remove (mouseHoverId); |
| mouseHoverId = OS.gtk_timeout_add (400, mouseHoverProc, handle); |
| mouseHoverHandle = handle; |
| } |
| |
| 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 addWidget (int /*long*/ handle, Widget widget) { |
| if (handle == 0) return; |
| if (freeSlot == -1) { |
| int length = (freeSlot = indexTable.length) + GROW_SIZE; |
| int[] newIndexTable = new int[length]; |
| Widget[] newWidgetTable = new Widget [length]; |
| System.arraycopy (indexTable, 0, newIndexTable, 0, freeSlot); |
| System.arraycopy (widgetTable, 0, newWidgetTable, 0, freeSlot); |
| for (int i = freeSlot; i < length - 1; i++) { |
| newIndexTable[i] = i + 1; |
| } |
| newIndexTable[length - 1] = -1; |
| indexTable = newIndexTable; |
| widgetTable = newWidgetTable; |
| } |
| int index = freeSlot + 1; |
| OS.g_object_set_qdata (handle, SWT_OBJECT_INDEX, index); |
| int oldSlot = freeSlot; |
| freeSlot = indexTable[oldSlot]; |
| indexTable [oldSlot] = -2; |
| widgetTable [oldSlot] = 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. |
| * |
| * @param runnable code to run on the user-interface thread. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see #syncExec |
| */ |
| public void asyncExec (Runnable runnable) { |
| 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 () { |
| if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS); |
| OS.gdk_beep(); |
| OS.gdk_flush(); |
| } |
| |
| 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 synchronized void checkDisplay (Thread thread) { |
| for (int i=0; i<Displays.length; i++) { |
| if (Displays [i] != null && Displays [i].thread == thread) { |
| SWT.error (SWT.ERROR_THREAD_INVALID_ACCESS); |
| } |
| } |
| } |
| |
| /** |
| * 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); |
| } |
| |
| /** |
| * 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 ()); |
| createDisplay (data); |
| register (); |
| if (Default == null) Default = this; |
| } |
| |
| synchronized void createDisplay (DeviceData data) { |
| /* |
| * This code is intentionally commented. |
| */ |
| // if (!OS.g_thread_supported ()) { |
| // OS.g_thread_init (0); |
| // OS.gdk_threads_init (); |
| // } |
| OS.gtk_set_locale(); |
| if (!OS.gtk_init_check (new int /*long*/ [] {0}, null)) { |
| SWT.error (SWT.ERROR_NO_HANDLES); |
| } |
| OS.gtk_widget_set_default_direction (OS.GTK_TEXT_DIR_LTR); |
| OS.gdk_rgb_init (); |
| int /*long*/ ptr = OS.gtk_check_version (MAJOR, MINOR, MICRO); |
| if (ptr != 0) { |
| int length = OS.strlen (ptr); |
| byte [] buffer = new byte [length]; |
| OS.memmove (buffer, ptr, length); |
| System.out.println ("***WARNING: " + new String (Converter.mbcsToWcs (null, buffer))); |
| System.out.println ("***WARNING: SWT requires GTK " + MAJOR+ "." + MINOR + "." + MICRO); |
| int major = OS.gtk_major_version (), minor = OS.gtk_minor_version (), micro = OS.gtk_micro_version (); |
| System.out.println ("***WARNING: Detected: " + major + "." + minor + "." + micro); |
| } |
| byte [] buffer = Converter.wcsToMbcs (null, APP_NAME, true); |
| OS.gdk_set_program_class (buffer); |
| byte [] flatStyle = Converter.wcsToMbcs (null, "style \"swt-flat\" { GtkToolbar::shadow-type = none } widget \"*swt-toolbar-flat*\" style : highest \"swt-flat\"", true); |
| OS.gtk_rc_parse_string (flatStyle); |
| |
| /* Initialize the event callback */ |
| eventCallback = new Callback (this, "eventProc", 2); |
| eventProc = eventCallback.getAddress (); |
| if (eventProc == 0) SWT.error (SWT.ERROR_NO_MORE_CALLBACKS); |
| OS.gdk_event_handler_set (eventProc, 0, 0); |
| } |
| |
| int /*long*/[] createImage (String name) { |
| int /*long*/ style = OS.gtk_widget_get_default_style (); |
| byte[] buffer = Converter.wcsToMbcs (null, name, true); |
| int /*long*/ pixbuf = OS.gtk_icon_set_render_icon ( |
| OS.gtk_icon_factory_lookup_default (buffer), style, |
| OS.GTK_TEXT_DIR_NONE, OS.GTK_STATE_NORMAL, -1, 0, 0); |
| if (pixbuf == 0) return null; |
| int /*long*/[] pixmap_return = new int /*long*/[1]; |
| int /*long*/[] mask_return = new int /*long*/[1]; |
| OS.gdk_pixbuf_render_pixmap_and_mask (pixbuf, pixmap_return, mask_return, 128); |
| OS.g_object_unref (pixbuf); |
| return new int /*long*/[] {pixmap_return [0], mask_return [0]}; |
| } |
| |
| synchronized void deregister () { |
| for (int i=0; i<Displays.length; i++) { |
| if (this == 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 #dispose |
| * @see #release |
| */ |
| protected void destroy () { |
| if (this == Default) Default = null; |
| deregister (); |
| destroyDisplay (); |
| } |
| |
| void destroyDisplay () { |
| } |
| |
| /** |
| * 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. |
| * |
| * @param thread the user-interface thread |
| * @return the display for the given thread |
| */ |
| public static synchronized Display findDisplay (Thread thread) { |
| for (int i=0; i<Displays.length; i++) { |
| Display display = Displays [i]; |
| if (display != null && display.thread == thread) { |
| return display; |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Causes the <code>run()</code> method of the runnable to |
| * be invoked by the user-interface thread just before the |
| * receiver is disposed. |
| * |
| * @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 SWTError#error |
| */ |
| void error (int code) { |
| SWT.error (code); |
| } |
| |
| int /*long*/ eventProc (int /*long*/ event, int /*long*/ data) { |
| OS.memmove (gdkEvent, event, GdkEventButton.sizeof); |
| boolean dispatch = true; |
| if (dispatchEvents != null) { |
| dispatch = false; |
| for (int i = 0; i < dispatchEvents.length; i++) { |
| if (gdkEvent.type == dispatchEvents [i]) { |
| dispatch = true; |
| break; |
| } |
| } |
| } |
| if (!dispatch) { |
| addGdkEvent (OS.gdk_event_copy (event)); |
| return 0; |
| } |
| boolean forward = false; |
| Control control = null; |
| int /*long*/ window = 0; |
| switch (gdkEvent.type) { |
| case OS.GDK_ENTER_NOTIFY: |
| case OS.GDK_LEAVE_NOTIFY: |
| case OS.GDK_BUTTON_PRESS: |
| case OS.GDK_2BUTTON_PRESS: |
| case OS.GDK_3BUTTON_PRESS: |
| case OS.GDK_BUTTON_RELEASE: |
| case OS.GDK_MOTION_NOTIFY: { |
| window = gdkEvent.window; |
| int /*long*/ [] user_data = new int /*long*/ [1]; |
| do { |
| OS.gdk_window_get_user_data (window, user_data); |
| int /*long*/ handle = user_data [0]; |
| if (handle != 0) { |
| Widget widget = getWidget (handle); |
| if (widget != null && widget instanceof Control) { |
| control = (Control) widget; |
| if (control.isEnabled ()) break; |
| forward = true; |
| } |
| } |
| } while ((window = OS.gdk_window_get_parent (window)) != 0); |
| } |
| } |
| Shell shell = null; |
| GdkEventButton gdkEventButton = null; |
| int /*long*/ oldWindow = 0; |
| double oldX = 0, oldY = 0; |
| if (control != null ) { |
| if (window == 0) return 0; |
| if (forward) { |
| switch (gdkEvent.type) { |
| case OS.GDK_ENTER_NOTIFY: |
| case OS.GDK_LEAVE_NOTIFY: |
| return 0; |
| } |
| gdkEventButton = new GdkEventButton (); |
| OS.memmove (gdkEventButton, event, GdkEventButton.sizeof); |
| oldWindow = gdkEventButton.window; |
| oldX = gdkEventButton.x; |
| oldY = gdkEventButton.y; |
| int /*long*/ eventHandle = control.eventHandle (); |
| gdkEventButton.window = OS.GTK_WIDGET_WINDOW (eventHandle); |
| int [] origin_x = new int [1], origin_y = new int [1]; |
| OS.gdk_window_get_origin (gdkEventButton.window, origin_x, origin_y); |
| gdkEventButton.x = gdkEventButton.x_root - origin_x [0]; |
| gdkEventButton.y = gdkEventButton.y_root - origin_y [0]; |
| OS.memmove (event, gdkEventButton, GdkEventButton.sizeof); |
| } |
| shell = control.getShell (); |
| if ((shell.style & SWT.ON_TOP) != 0) { |
| OS.gtk_grab_add (shell.shellHandle); |
| } |
| } |
| OS.gtk_main_do_event (event); |
| if (dispatchEvents == null && gdkEventCount != 0) { |
| for (int i = 0; i < gdkEventCount; i++) { |
| if (gdkEventWidgets [i] == null || !gdkEventWidgets [i].isDisposed ()) { |
| OS.gdk_event_put (gdkEvents [i]); |
| OS.gdk_event_free (gdkEvents [i]); |
| } |
| } |
| gdkEventCount = 0; |
| gdkEvents = null; |
| } |
| if (control != null ) { |
| if (shell != null && !shell.isDisposed () && (shell.style & SWT.ON_TOP) != 0) { |
| OS.gtk_grab_remove (shell.shellHandle); |
| } |
| if (forward) { |
| gdkEventButton.window = oldWindow; |
| gdkEventButton.x = oldX; |
| gdkEventButton.y = oldY; |
| OS.memmove (event, gdkEventButton, GdkEventButton.sizeof); |
| } |
| } |
| return 0; |
| } |
| |
| /** |
| * 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. |
| * |
| * @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> |
| */ |
| public Widget findWidget (int /*long*/ handle) { |
| checkDevice (); |
| return getWidget (handle); |
| } |
| |
| void flushExposes () { |
| OS.gdk_flush (); |
| OS.gdk_flush (); |
| if (OS.GDK_WINDOWING_X11 ()) { |
| GdkRectangle rect = new GdkRectangle (); |
| XExposeEvent exposeEvent = new XExposeEvent (); |
| int /*long*/ xDisplay = OS.GDK_DISPLAY (); |
| int /*long*/ xEvent = OS.g_malloc (XEvent.sizeof); |
| while (OS.XCheckMaskEvent (xDisplay, OS.ExposureMask, xEvent)) { |
| OS.memmove (exposeEvent, xEvent, XExposeEvent.sizeof); |
| rect.x = exposeEvent.x; |
| rect.y = exposeEvent.y; |
| rect.width = exposeEvent.width; |
| rect.height = exposeEvent.height; |
| int /*long*/ window = OS.gdk_window_lookup (exposeEvent.window); |
| if (window != 0) OS.gdk_window_invalidate_rect (window, rect, true); |
| } |
| OS.g_free (xEvent); |
| } |
| } |
| |
| /** |
| * 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 (); |
| Shell [] shells = getShells (); |
| for (int i=0; i<shells.length; i++) { |
| if (shells [i].hasFocus) return shells [i]; |
| } |
| return null; |
| } |
| |
| /** |
| * Returns a rectangle describing the receiver's size and location. |
| * |
| * @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 (); |
| return new Rectangle (0, 0, OS.gdk_screen_width (), OS.gdk_screen_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 synchronized Display getCurrent () { |
| Thread current = Thread.currentThread (); |
| for (int i=0; i<Displays.length; i++) { |
| Display display = Displays [i]; |
| if (display != null && display.thread == current) return display; |
| } |
| return 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 |
| * |
| * @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[] x = new int[1], y = new int[1]; |
| int /*long*/ window = OS.gdk_window_at_pointer (x,y); |
| if (window == 0) return null; |
| int /*long*/ [] user_data = new int /*long*/ [1]; |
| OS.gdk_window_get_user_data (window, user_data); |
| int /*long*/ handle = user_data [0]; |
| if (handle == 0) return null; |
| do { |
| Widget widget = getWidget (handle); |
| if (widget != null && widget instanceof Control) { |
| Control control = (Control) widget; |
| if (control.getEnabled ()) return control; |
| } |
| } while ((handle = OS.gtk_widget_get_parent (handle)) != 0); |
| return null; |
| } |
| |
| 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); |
| } |
| |
| /** |
| * 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 (); |
| int [] x = new int [1], y = new int [1]; |
| OS.gdk_window_get_pointer (0, x, y, null); |
| return new Point (x [0], y [0]); |
| } |
| |
| /** |
| * 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 (16, 16), new Point (32, 32)}; |
| } |
| |
| /** |
| * 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 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 |
| * @see #disposeExec |
| */ |
| public Object getData (String key) { |
| checkDevice (); |
| if (key == null) error (SWT.ERROR_NULL_ARGUMENT); |
| 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 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 |
| * @see #disposeExec |
| */ |
| public Object getData () { |
| checkDevice (); |
| return data; |
| } |
| |
| /** |
| * Returns a point whose x coordinate is the horizontal |
| * dots per inch of the display, and whose y coordinate |
| * is the vertical dots per inch of the display. |
| * |
| * @return the horizontal and vertical DPI |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public Point getDPI () { |
| checkDevice (); |
| int widthMM = OS.gdk_screen_width_mm (); |
| int width = OS.gdk_screen_width (); |
| int dpi = Compatibility.round (254 * width, widthMM * 10); |
| return new Point (dpi, dpi); |
| } |
| |
| /** |
| * 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 synchronized Display getDefault () { |
| 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 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.RIGHT; |
| } |
| |
| /** |
| * 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 (); |
| return DOUBLE_CLICK_TIME; |
| } |
| |
| /** |
| * 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 control under 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> |
| */ |
| public Control getFocusControl () { |
| checkDevice (); |
| Shell shell = getActiveShell (); |
| if (shell == null) return null; |
| int /*long*/ shellHandle = shell.shellHandle; |
| int /*long*/ handle = OS.gtk_window_get_focus (shellHandle); |
| if (handle == 0) return null; |
| do { |
| Widget widget = getWidget (handle); |
| if (widget != null && widget instanceof Control) { |
| Control window = (Control) widget; |
| if (window.getEnabled ()) return window; |
| } |
| } while ((handle = OS.gtk_widget_get_parent (handle)) != 0); |
| return null; |
| } |
| |
| /** |
| * 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 false; |
| } |
| |
| public int getDepth () { |
| checkDevice (); |
| GdkVisual visual = new GdkVisual (); |
| OS.memmove (visual, OS.gdk_visual_get_system()); |
| return visual.depth; |
| } |
| |
| /** |
| * Returns the maximum allowed depth of icons on this display. |
| * 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> |
| */ |
| public int getIconDepth () { |
| checkDevice (); |
| return getDepth (); |
| } |
| |
| /** |
| * 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 (); |
| return new Point [] {new Point (16, 16), new Point (32, 32)}; |
| } |
| |
| int getLastEventTime () { |
| return OS.gtk_get_current_event_time (); |
| } |
| |
| int getMessageCount () { |
| return synchronizer.getMessageCount (); |
| } |
| |
| /** |
| * Returns an array of monitors attached to the device. |
| * |
| * @return the array of monitors |
| * |
| * @since 3.0 |
| */ |
| public Monitor [] getMonitors () { |
| checkDevice (); |
| Monitor [] monitors = null; |
| int /*long*/ screen = OS.gdk_screen_get_default (); |
| if (screen != 0) { |
| int monitorCount = OS.gdk_screen_get_n_monitors (screen); |
| if (monitorCount > 0) { |
| monitors = new Monitor [monitorCount]; |
| GdkRectangle dest = new GdkRectangle (); |
| for (int i = 0; i < monitorCount; i++) { |
| OS.gdk_screen_get_monitor_geometry (screen, i, dest); |
| Monitor monitor = new Monitor (); |
| monitor.handle = i; |
| monitor.x = dest.x; |
| monitor.y = dest.y; |
| monitor.width = dest.width; |
| monitor.height = dest.height; |
| monitor.clientX = monitor.x; |
| monitor.clientY = monitor.y; |
| monitor.clientWidth = monitor.width; |
| monitor.clientHeight = monitor.height; |
| monitors [i] = monitor; |
| } |
| } |
| } |
| if (monitors == null) { |
| /* No multimonitor support detected, default to one monitor */ |
| Monitor monitor = new Monitor (); |
| Rectangle bounds = getBounds (); |
| monitor.x = bounds.x; |
| monitor.y = bounds.y; |
| monitor.width = bounds.width; |
| monitor.height = bounds.height; |
| monitor.clientX = monitor.x; |
| monitor.clientY = monitor.y; |
| monitor.clientWidth = monitor.width; |
| monitor.clientHeight = monitor.height; |
| monitors = new Monitor [] { monitor }; |
| } |
| return monitors; |
| } |
| |
| /** |
| * Returns the primary monitor for that device. |
| * |
| * @return the primary monitor |
| * |
| * @since 3.0 |
| */ |
| public Monitor getPrimaryMonitor () { |
| checkDevice (); |
| Monitor [] monitors = getMonitors (); |
| return monitors [0]; |
| } |
| |
| /** |
| * Returns an 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 (); |
| int length = 0; |
| for (int i=0; i<widgetTable.length; i++) { |
| Widget widget = widgetTable [i]; |
| if (widget != null && widget instanceof Shell) length++; |
| } |
| int index = 0; |
| Shell [] result = new Shell [length]; |
| for (int i=0; i<widgetTable.length; i++) { |
| Widget widget = widgetTable [i]; |
| if (widget != null && widget instanceof Shell) { |
| int j = 0; |
| while (j < index) { |
| if (result [j] == widget) break; |
| j++; |
| } |
| if (j == index) result [index++] = (Shell) widget; |
| } |
| } |
| if (index == length) return result; |
| Shell [] newResult = new Shell [index]; |
| System.arraycopy (result, 0, newResult, 0, index); |
| return newResult; |
| } |
| |
| /** |
| * 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 () { |
| 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 (); |
| GdkColor gdkColor = null; |
| switch (id) { |
| case SWT.COLOR_INFO_FOREGROUND: gdkColor = COLOR_INFO_FOREGROUND; break; |
| case SWT.COLOR_INFO_BACKGROUND: gdkColor = COLOR_INFO_BACKGROUND; break; |
| case SWT.COLOR_TITLE_FOREGROUND: gdkColor = COLOR_TITLE_FOREGROUND; break; |
| case SWT.COLOR_TITLE_BACKGROUND: gdkColor = COLOR_TITLE_BACKGROUND; break; |
| case SWT.COLOR_TITLE_BACKGROUND_GRADIENT: gdkColor = COLOR_TITLE_BACKGROUND_GRADIENT; break; |
| case SWT.COLOR_TITLE_INACTIVE_FOREGROUND: gdkColor = COLOR_TITLE_INACTIVE_FOREGROUND; break; |
| case SWT.COLOR_TITLE_INACTIVE_BACKGROUND: gdkColor = COLOR_TITLE_INACTIVE_BACKGROUND; break; |
| case SWT.COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT: gdkColor = COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT; break; |
| case SWT.COLOR_WIDGET_DARK_SHADOW: gdkColor = COLOR_WIDGET_DARK_SHADOW; break; |
| case SWT.COLOR_WIDGET_NORMAL_SHADOW: gdkColor = COLOR_WIDGET_NORMAL_SHADOW; break; |
| case SWT.COLOR_WIDGET_LIGHT_SHADOW: gdkColor = COLOR_WIDGET_LIGHT_SHADOW; break; |
| case SWT.COLOR_WIDGET_HIGHLIGHT_SHADOW: gdkColor = COLOR_WIDGET_HIGHLIGHT_SHADOW; break; |
| case SWT.COLOR_WIDGET_BACKGROUND: gdkColor = COLOR_WIDGET_BACKGROUND; break; |
| case SWT.COLOR_WIDGET_FOREGROUND: gdkColor = COLOR_WIDGET_FOREGROUND; break; |
| case SWT.COLOR_WIDGET_BORDER: gdkColor = COLOR_WIDGET_BORDER; break; |
| case SWT.COLOR_LIST_FOREGROUND: gdkColor = COLOR_LIST_FOREGROUND; break; |
| case SWT.COLOR_LIST_BACKGROUND: gdkColor = COLOR_LIST_BACKGROUND; break; |
| case SWT.COLOR_LIST_SELECTION: gdkColor = COLOR_LIST_SELECTION; break; |
| case SWT.COLOR_LIST_SELECTION_TEXT: gdkColor = COLOR_LIST_SELECTION_TEXT; break; |
| default: |
| return super.getSystemColor (id); |
| } |
| if (gdkColor == null) return super.getSystemColor (SWT.COLOR_BLACK); |
| return Color.gtk_new (this, gdkColor); |
| } |
| |
| /** |
| * 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) { |
| int /*long*/ imagePixmap = 0, imageMask = 0; |
| switch (id) { |
| case SWT.ICON_ERROR: |
| if (errorPixmap == 0) { |
| int /*long*/[] image = createImage ("gtk-dialog-error"); |
| if (image != null) { |
| errorPixmap = image [0]; |
| errorMask = image [1]; |
| } |
| } |
| imagePixmap = errorPixmap; |
| imageMask = errorMask; |
| break; |
| case SWT.ICON_INFORMATION: |
| case SWT.ICON_WORKING: |
| if (infoPixmap == 0) { |
| int /*long*/[] image = createImage ("gtk-dialog-info"); |
| if (image != null) { |
| infoPixmap = image [0]; |
| infoMask = image [1]; |
| } |
| } |
| imagePixmap = infoPixmap; |
| imageMask = infoMask; |
| break; |
| case SWT.ICON_QUESTION: |
| if (questionPixmap == 0) { |
| int /*long*/[] image = createImage ("gtk-dialog-question"); |
| if (image != null) { |
| questionPixmap = image [0]; |
| questionMask = image [1]; |
| } |
| } |
| imagePixmap = questionPixmap; |
| imageMask = questionMask; |
| break; |
| case SWT.ICON_WARNING: |
| if (warningPixmap == 0) { |
| int /*long*/[] image = createImage ("gtk-dialog-warning"); |
| if (image != null) { |
| warningPixmap = image [0]; |
| warningMask = image [1]; |
| } |
| } |
| imagePixmap = warningPixmap; |
| imageMask = warningMask; |
| break; |
| } |
| if (imagePixmap == 0) return null; |
| return Image.gtk_new (this, SWT.ICON, imagePixmap, imageMask); |
| } |
| |
| void initializeSystemResources () { |
| int /*long*/ shellHandle = OS.gtk_window_new (OS.GTK_WINDOW_TOPLEVEL); |
| if (shellHandle == 0) SWT.error (SWT.ERROR_NO_HANDLES); |
| OS.gtk_widget_realize (shellHandle); |
| |
| int /*long*/ tooltipShellHandle = OS.gtk_window_new (OS.GTK_WINDOW_POPUP); |
| if (tooltipShellHandle == 0) SWT.error (SWT.ERROR_NO_HANDLES); |
| byte[] gtk_tooltips = Converter.wcsToMbcs (null, "gtk-tooltips", true); |
| OS.gtk_widget_set_name (tooltipShellHandle, gtk_tooltips); |
| OS.gtk_widget_realize (tooltipShellHandle); |
| |
| GdkColor gdkColor; |
| int /*long*/ style = OS.gtk_widget_get_style (shellHandle); |
| int /*long*/ tooltipStyle = OS.gtk_widget_get_style (tooltipShellHandle); |
| |
| defaultFont = OS.pango_font_description_copy (OS.gtk_style_get_font_desc (style)); |
| |
| gdkColor = new GdkColor(); |
| OS.gtk_style_get_black (style, gdkColor); |
| COLOR_WIDGET_DARK_SHADOW = gdkColor; |
| |
| gdkColor = new GdkColor(); |
| OS.gtk_style_get_dark (style, OS.GTK_STATE_NORMAL, gdkColor); |
| COLOR_WIDGET_NORMAL_SHADOW = gdkColor; |
| |
| gdkColor = new GdkColor(); |
| OS.gtk_style_get_bg (style, OS.GTK_STATE_NORMAL, gdkColor); |
| COLOR_WIDGET_LIGHT_SHADOW = gdkColor; |
| |
| gdkColor = new GdkColor(); |
| OS.gtk_style_get_light (style, OS.GTK_STATE_NORMAL, gdkColor); |
| COLOR_WIDGET_HIGHLIGHT_SHADOW = gdkColor; |
| |
| gdkColor = new GdkColor(); |
| OS.gtk_style_get_fg (style, OS.GTK_STATE_NORMAL, gdkColor); |
| COLOR_WIDGET_FOREGROUND = gdkColor; |
| |
| gdkColor = new GdkColor(); |
| OS.gtk_style_get_bg (style, OS.GTK_STATE_NORMAL, gdkColor); |
| COLOR_WIDGET_BACKGROUND = gdkColor; |
| |
| gdkColor = new GdkColor(); |
| OS.gtk_style_get_text (style, OS.GTK_STATE_NORMAL, gdkColor); |
| COLOR_TEXT_FOREGROUND = gdkColor; |
| |
| gdkColor = new GdkColor(); |
| OS.gtk_style_get_base (style, OS.GTK_STATE_NORMAL, gdkColor); |
| COLOR_TEXT_BACKGROUND = gdkColor; |
| |
| gdkColor = new GdkColor(); |
| OS.gtk_style_get_text (style, OS.GTK_STATE_NORMAL, gdkColor); |
| COLOR_LIST_FOREGROUND = gdkColor; |
| |
| gdkColor = new GdkColor(); |
| OS.gtk_style_get_base (style, OS.GTK_STATE_NORMAL, gdkColor); |
| COLOR_LIST_BACKGROUND = gdkColor; |
| |
| gdkColor = new GdkColor(); |
| OS.gtk_style_get_text (style, OS.GTK_STATE_SELECTED, gdkColor); |
| COLOR_LIST_SELECTION_TEXT = gdkColor; |
| |
| gdkColor = new GdkColor(); |
| OS.gtk_style_get_base (style, OS.GTK_STATE_SELECTED, gdkColor); |
| COLOR_LIST_SELECTION = gdkColor; |
| |
| gdkColor = new GdkColor(); |
| OS.gtk_style_get_fg (tooltipStyle, OS.GTK_STATE_NORMAL, gdkColor); |
| COLOR_INFO_FOREGROUND = gdkColor; |
| |
| gdkColor = new GdkColor(); |
| OS.gtk_style_get_bg (tooltipStyle, OS.GTK_STATE_NORMAL, gdkColor); |
| COLOR_INFO_BACKGROUND = gdkColor; |
| |
| gdkColor = new GdkColor(); |
| OS.gtk_style_get_bg (style, OS.GTK_STATE_SELECTED, gdkColor); |
| COLOR_TITLE_BACKGROUND = gdkColor; |
| |
| gdkColor = new GdkColor(); |
| OS.gtk_style_get_fg (style, OS.GTK_STATE_SELECTED, gdkColor); |
| COLOR_TITLE_FOREGROUND = gdkColor; |
| |
| gdkColor = new GdkColor(); |
| OS.gtk_style_get_light (style, OS.GTK_STATE_SELECTED, gdkColor); |
| COLOR_TITLE_BACKGROUND_GRADIENT = gdkColor; |
| |
| gdkColor = new GdkColor(); |
| OS.gtk_style_get_bg (style, OS.GTK_STATE_INSENSITIVE, gdkColor); |
| COLOR_TITLE_INACTIVE_BACKGROUND = gdkColor; |
| |
| gdkColor = new GdkColor(); |
| OS.gtk_style_get_fg (style, OS.GTK_STATE_INSENSITIVE, gdkColor); |
| COLOR_TITLE_INACTIVE_FOREGROUND = gdkColor; |
| |
| gdkColor = new GdkColor(); |
| OS.gtk_style_get_light (style, OS.GTK_STATE_INSENSITIVE, gdkColor); |
| COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT = gdkColor; |
| |
| OS.gtk_widget_destroy (tooltipShellHandle); |
| OS.gtk_widget_destroy (shellHandle); |
| } |
| |
| /** |
| * Returns a reasonable font for applications to use. |
| * On some platforms, this will match the "default font" |
| * or "system font" if such can be found. This font |
| * should not be free'd because it was allocated by the |
| * system, not the application. |
| * <p> |
| * Typically, applications which want the default look |
| * should simply not set the font on the widgets they |
| * create. Widgets are always created with the correct |
| * default font for the class of user-interface component |
| * they represent. |
| * </p> |
| * |
| * @return a font |
| * |
| * @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 Font getSystemFont () { |
| checkDevice (); |
| return Font.gtk_new (this, defaultFont); |
| } |
| |
| /** |
| * Returns the single instance of the system tray. |
| * |
| * @return the receiver's user-interface thread |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 3.0 |
| */ |
| public Tray getSystemTray () { |
| if (tray != null) return tray; |
| return tray = new Tray (this, SWT.NULL); |
| } |
| |
| /** |
| * 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 () { |
| if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED); |
| return thread; |
| } |
| |
| Widget getWidget (int /*long*/ handle) { |
| if (handle == 0) return null; |
| int /*long*/ index = OS.g_object_get_qdata (handle, SWT_OBJECT_INDEX) - 1; |
| if (0 <= index && index < widgetTable.length) return widgetTable [(int)/*64*/index]; |
| return null; |
| } |
| |
| /** |
| * 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 (); |
| initializeCallbacks (); |
| initializeSystemResources (); |
| initializeWidgetTable (); |
| } |
| |
| void initializeCallbacks () { |
| windowCallback2 = new Callback (this, "windowProc", 2); |
| windowProc2 = windowCallback2.getAddress (); |
| if (windowProc2 == 0) SWT.error (SWT.ERROR_NO_MORE_CALLBACKS); |
| |
| windowCallback3 = new Callback (this, "windowProc", 3); |
| windowProc3 = windowCallback3.getAddress (); |
| if (windowProc3 == 0) SWT.error (SWT.ERROR_NO_MORE_CALLBACKS); |
| |
| windowCallback4 = new Callback (this, "windowProc", 4); |
| windowProc4 = windowCallback4.getAddress (); |
| if (windowProc4 == 0) SWT.error (SWT.ERROR_NO_MORE_CALLBACKS); |
| |
| windowCallback5 = new Callback (this, "windowProc", 5); |
| windowProc5 = windowCallback5.getAddress (); |
| if (windowProc5 == 0) SWT.error (SWT.ERROR_NO_MORE_CALLBACKS); |
| |
| timerCallback = new Callback (this, "timerProc", 1); |
| timerProc = timerCallback.getAddress (); |
| if (timerProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS); |
| |
| windowTimerCallback = new Callback (this, "windowTimerProc", 1); |
| windowTimerProc = windowTimerCallback.getAddress (); |
| if (windowTimerProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS); |
| |
| mouseHoverCallback = new Callback (this, "mouseHoverProc", 1); |
| mouseHoverProc = mouseHoverCallback.getAddress (); |
| if (mouseHoverProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS); |
| |
| caretCallback = new Callback(this, "caretProc", 1); |
| caretProc = caretCallback.getAddress(); |
| if (caretProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS); |
| |
| menuPositionCallback = new Callback(this, "menuPositionProc", 5); |
| menuPositionProc = menuPositionCallback.getAddress(); |
| if (menuPositionProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS); |
| |
| shellMapCallback = new Callback(this, "shellMapProc", 3); |
| shellMapProc = shellMapCallback.getAddress(); |
| if (shellMapProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS); |
| |
| treeSelectionCallback = new Callback(this, "treeSelectionProc", 4); |
| treeSelectionProc = treeSelectionCallback.getAddress(); |
| if (treeSelectionProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS); |
| |
| textCellDataCallback = new Callback (this, "textCellDataProc", 5); |
| textCellDataProc = textCellDataCallback.getAddress (); |
| if (textCellDataProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS); |
| |
| pixbufCellDataCallback = new Callback (this, "pixbufCellDataProc", 5); |
| pixbufCellDataProc = pixbufCellDataCallback.getAddress (); |
| if (pixbufCellDataProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS); |
| } |
| |
| void initializeWidgetTable () { |
| indexTable = new int [GROW_SIZE]; |
| widgetTable = new Widget [GROW_SIZE]; |
| for (int i=0; i<GROW_SIZE-1; i++) indexTable [i] = i + 1; |
| indexTable [GROW_SIZE - 1] = -1; |
| } |
| |
| /** |
| * 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 |
| */ |
| public void internal_dispose_GC (int /*long*/ gdkGC, GCData data) { |
| OS.g_object_unref (gdkGC); |
| } |
| |
| /** |
| * 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 SWTError <ul> |
| * <li>ERROR_NO_HANDLES if a handle could not be obtained for image creation</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public int /*long*/ internal_new_GC (GCData data) { |
| if (isDisposed()) SWT.error(SWT.ERROR_DEVICE_DISPOSED); |
| int /*long*/ root = OS.GDK_ROOT_PARENT (); |
| int /*long*/ gdkGC = OS.gdk_gc_new (root); |
| if (gdkGC == 0) SWT.error (SWT.ERROR_NO_HANDLES); |
| if (data != null) { |
| int mask = SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT; |
| if ((data.style & mask) == 0) { |
| data.style |= SWT.LEFT_TO_RIGHT; |
| } |
| data.device = this; |
| data.drawable = root; |
| data.font = defaultFont; |
| } |
| return gdkGC; |
| } |
| |
| 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 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 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); |
| Point point = new Point (x, y); |
| if (from != null) { |
| int /*long*/ eventHandle = from.eventHandle (); |
| OS.gtk_widget_realize (eventHandle); |
| int /*long*/ window = OS.GTK_WIDGET_WINDOW (eventHandle); |
| int [] origin_x = new int [1], origin_y = new int [1]; |
| OS.gdk_window_get_origin (window, origin_x, origin_y); |
| point.x += origin_x [0]; |
| point.y += origin_y [0]; |
| } |
| if (to != null) { |
| int /*long*/ eventHandle = to.eventHandle (); |
| OS.gtk_widget_realize (eventHandle); |
| int /*long*/ window = OS.GTK_WIDGET_WINDOW (eventHandle); |
| int [] origin_x = new int [1], origin_y = new int [1]; |
| OS.gdk_window_get_origin (window, origin_x, origin_y); |
| point.x -= origin_x [0]; |
| point.y -= origin_y [0]; |
| } |
| return point; |
| } |
| |
| /** |
| * 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); |
| } |
| |
| static char mbcsToWcs (char ch) { |
| int key = ch & 0xFFFF; |
| if (key <= 0x7F) return ch; |
| byte [] buffer; |
| if (key <= 0xFF) { |
| buffer = new byte [1]; |
| buffer [0] = (byte) key; |
| } else { |
| buffer = new byte [2]; |
| buffer [0] = (byte) ((key >> 8) & 0xFF); |
| buffer [1] = (byte) (key & 0xFF); |
| } |
| char [] result = Converter.mbcsToWcs (null, buffer); |
| if (result.length == 0) return 0; |
| return result [0]; |
| } |
| |
| int /*long*/ menuPositionProc (int /*long*/ menu, int /*long*/ x, int /*long*/ y, int /*long*/ push_in, int /*long*/ user_data) { |
| Widget widget = getWidget (menu); |
| if (widget == null) return 0; |
| return widget.menuPositionProc (menu, x, y, push_in, user_data); |
| } |
| |
| /** |
| * 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); |
| Rectangle rect = new Rectangle (x, y, width, height); |
| if (from != null) { |
| int /*long*/ eventHandle = from.eventHandle (); |
| OS.gtk_widget_realize (eventHandle); |
| int /*long*/ window = OS.GTK_WIDGET_WINDOW (eventHandle); |
| int [] origin_x = new int [1], origin_y = new int [1]; |
| OS.gdk_window_get_origin (window, origin_x, origin_y); |
| rect.x += origin_x [0]; |
| rect.y += origin_y [0]; |
| } |
| if (to != null) { |
| int /*long*/ eventHandle = to.eventHandle (); |
| OS.gtk_widget_realize (eventHandle); |
| int /*long*/ window = OS.GTK_WIDGET_WINDOW (eventHandle); |
| int [] origin_x = new int [1], origin_y = new int [1]; |
| OS.gdk_window_get_origin (window, origin_x, origin_y); |
| rect.x -= origin_x [0]; |
| rect.y -= origin_y [0]; |
| } |
| return rect; |
| } |
| |
| int /*long*/ mouseHoverProc (int /*long*/ handle) { |
| Widget widget = getWidget (handle); |
| if (widget == null) return 0; |
| return widget.hoverProc (handle); |
| } |
| |
| /** |
| * 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> |
| * <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> |
| * </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) { |
| if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED); |
| if (event == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (!OS.GDK_WINDOWING_X11()) return false; |
| int /*long*/ xDisplay = OS.GDK_DISPLAY (); |
| int type = event.type; |
| switch (type) { |
| case SWT.KeyDown: |
| case SWT.KeyUp: { |
| int keyCode = 0; |
| int /*long*/ keysym = untranslateKey (event.keyCode); |
| if (keysym != 0) keyCode = OS.XKeysymToKeycode (xDisplay, keysym); |
| if (keyCode == 0) { |
| char key = event.character; |
| switch (key) { |
| case '\r': keysym = OS.GDK_Return; break; |
| default: keysym = wcsToMbcs (key); |
| } |
| keyCode = OS.XKeysymToKeycode (xDisplay, keysym); |
| if (keyCode == 0) return false; |
| } |
| OS.XTestFakeKeyEvent (xDisplay, keyCode, type == SWT.KeyDown, 0); |
| return true; |
| } |
| case SWT.MouseDown: |
| case SWT.MouseMove: |
| case SWT.MouseUp: { |
| if (type == SWT.MouseMove) { |
| OS.XTestFakeMotionEvent (xDisplay, -1, event.x, event.y, 0); |
| } else { |
| int button = event.button; |
| if (button < 1 || button > 3) return false; |
| OS.XTestFakeButtonEvent (xDisplay, button, type == SWT.MouseDown, 0); |
| } |
| return true; |
| } |
| } |
| 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; |
| } |
| |
| /** |
| * 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> |
| * </ul> |
| * |
| * @see #sleep |
| * @see #wake |
| */ |
| public boolean readAndDispatch () { |
| checkDevice (); |
| runPopups (); |
| int status = OS.gtk_events_pending (); |
| if (status != 0) { |
| OS.gtk_main_iteration (); |
| runDeferredEvents (); |
| return true; |
| } |
| return runAsyncMessages (); |
| } |
| |
| synchronized void register () { |
| for (int i=0; i<Displays.length; i++) { |
| if (Displays [i] == null) { |
| Displays [i] = this; |
| return; |
| } |
| } |
| Display [] newDisplays = new Display [Displays.length + 4]; |
| System.arraycopy (Displays, 0, newDisplays, 0, Displays.length); |
| newDisplays [Displays.length] = this; |
| 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 #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; |
| 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 () { |
| windowCallback2.dispose (); windowCallback2 = null; |
| windowCallback3.dispose (); windowCallback3 = null; |
| windowCallback4.dispose (); windowCallback4 = null; |
| windowCallback5.dispose (); windowCallback5 = null; |
| |
| /* Dispose preedit window */ |
| if (preeditWindow != 0) OS.gtk_widget_destroy (preeditWindow); |
| imControl = null; |
| |
| /* Dispose the menu callback */ |
| menuPositionCallback.dispose (); menuPositionCallback = null; |
| menuPositionProc = 0; |
| |
| /* Dispose the shell map callback */ |
| shellMapCallback.dispose (); shellMapCallback = null; |
| shellMapProc = 0; |
| |
| /* Dispose GtkTreeView callbacks */ |
| treeSelectionCallback.dispose (); treeSelectionCallback = null; |
| treeSelectionProc = 0; |
| textCellDataCallback.dispose (); textCellDataCallback = null; |
| textCellDataProc = 0; |
| pixbufCellDataCallback.dispose (); pixbufCellDataCallback = null; |
| pixbufCellDataProc = 0; |
| |
| /* Dispose the caret callback */ |
| if (caretId != 0) OS.gtk_timeout_remove (caretId); |
| caretId = 0; |
| caretProc = 0; |
| caretCallback.dispose (); |
| caretCallback = null; |
| |
| /* Dispose the timer callback */ |
| if (timerIds != null) { |
| for (int i=0; i<timerIds.length; i++) { |
| if (timerIds [i] != 0) OS.gtk_timeout_remove (timerIds [i]); |
| } |
| } |
| timerIds = null; |
| timerList = null; |
| timerProc = 0; |
| timerCallback.dispose (); |
| timerCallback = null; |
| windowTimerProc = 0; |
| windowTimerCallback.dispose (); |
| windowTimerCallback = null; |
| |
| /* Dispose mouse hover callback */ |
| if (mouseHoverId != 0) OS.gtk_timeout_remove (mouseHoverId); |
| mouseHoverId = 0; |
| mouseHoverHandle = mouseHoverProc = 0; |
| mouseHoverCallback.dispose (); |
| mouseHoverCallback = null; |
| |
| thread = null; |
| windowProc2 = windowProc3 = windowProc4 = windowProc5 = 0; |
| |
| /* Dispose the default font */ |
| if (defaultFont != 0) OS.pango_font_description_free (defaultFont); |
| defaultFont = 0; |
| |
| /* Dispose the System Images */ |
| if (errorPixmap != 0) { |
| OS.g_object_unref (errorPixmap); |
| OS.g_object_unref (errorMask); |
| } |
| if (infoPixmap != 0) { |
| OS.g_object_unref (infoPixmap); |
| OS.g_object_unref (infoMask); |
| } |
| if (questionPixmap != 0) { |
| OS.g_object_unref (questionPixmap); |
| OS.g_object_unref (questionMask); |
| } |
| if (warningPixmap != 0) { |
| OS.g_object_unref (warningPixmap); |
| OS.g_object_unref (warningMask); |
| } |
| errorPixmap = infoPixmap = questionPixmap = warningPixmap = 0; |
| errorMask = infoMask = questionMask = warningMask = 0; |
| |
| /* Release the System Cursors */ |
| for (int i = 0; i < cursors.length; i++) { |
| if (cursors [i] != null) cursors [i].dispose (); |
| } |
| cursors = null; |
| |
| COLOR_WIDGET_DARK_SHADOW = COLOR_WIDGET_NORMAL_SHADOW = COLOR_WIDGET_LIGHT_SHADOW = |
| COLOR_WIDGET_HIGHLIGHT_SHADOW = COLOR_WIDGET_BACKGROUND = COLOR_WIDGET_BORDER = |
| COLOR_LIST_FOREGROUND = COLOR_LIST_BACKGROUND = COLOR_LIST_SELECTION = COLOR_LIST_SELECTION_TEXT = |
| COLOR_INFO_BACKGROUND = null; |
| |
| /* Dispose the event callback */ |
| OS.gdk_event_handler_set (0, 0, 0); |
| eventCallback.dispose (); eventCallback = null; |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notifed when an event of the given type occurs anywhere in |
| * this display. |
| * |
| * @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 #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; |
| } |
| |
| int /*long*/ removeGdkEvent () { |
| if (gdkEventCount == 0) return 0; |
| int /*long*/ event = gdkEvents [0]; |
| --gdkEventCount; |
| System.arraycopy (gdkEvents, 1, gdkEvents, 0, gdkEventCount); |
| System.arraycopy (gdkEventWidgets, 1, gdkEventWidgets, 0, gdkEventCount); |
| gdkEvents [gdkEventCount] = 0; |
| gdkEventWidgets [gdkEventCount] = null; |
| if (gdkEventCount == 0) { |
| gdkEvents = null; |
| gdkEventWidgets = null; |
| } |
| return event; |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notifed when an event of the given type occurs. |
| * |
| * @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> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see Listener |
| * @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); |
| } |
| |
| void removeMouseHoverTimeout (int /*long*/ handle) { |
| if (handle != mouseHoverHandle) return; |
| if (mouseHoverId != 0) OS.gtk_timeout_remove (mouseHoverId); |
| mouseHoverId = 0; |
| mouseHoverHandle = 0; |
| } |
| |
| void removePopup (Menu menu) { |
| if (popups == null) return; |
| for (int i=0; i<popups.length; i++) { |
| if (popups [i] == menu) { |
| popups [i] = null; |
| return; |
| } |
| } |
| } |
| |
| Widget removeWidget (int /*long*/ handle) { |
| if (handle == 0) return null; |
| Widget widget = null; |
| int index = (int)/*64*/ OS.g_object_get_qdata (handle, SWT_OBJECT_INDEX) - 1; |
| if (0 <= index && index < widgetTable.length) { |
| widget = widgetTable [index]; |
| widgetTable [index] = null; |
| indexTable [index] = freeSlot; |
| freeSlot = index; |
| OS.g_object_set_qdata (handle, SWT_OBJECT_INDEX, 0); |
| } |
| return widget; |
| } |
| |
| boolean runAsyncMessages () { |
| return synchronizer.runAsyncMessages (); |
| } |
| |
| boolean runDeferredEvents () { |
| /* |
| * 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 ()) { |
| widget.sendEvent (event); |
| |
| /* Ask for the next mouse event */ |
| if (event.type == SWT.MouseMove) { |
| OS.gdk_window_get_pointer (0, null, null, null); |
| } |
| } |
| } |
| |
| /* |
| * At this point, the event queue could |
| * be null due to a recursive invokation |
| * when running the event. |
| */ |
| } |
| |
| /* Clear the queue */ |
| eventQueue = null; |
| return true; |
| } |
| |
| 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 (); |
| menu._setVisible (true); |
| result = true; |
| } |
| popups = null; |
| return result; |
| } |
| |
| /** |
| * On platforms which support it, sets the application name |
| * to be the argument. On Motif, for example, this can be used |
| * to set the name used for resource lookup. |
| * |
| * @param name the new app name |
| */ |
| public static void setAppName (String name) { |
| APP_NAME = name; |
| } |
| |
| /** |
| * 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 (); |
| /* This is not supported on GTK */ |
| } |
| |
| /** |
| * 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 #setData |
| * @see #disposeExec |
| */ |
| public void setData (String key, Object value) { |
| checkDevice (); |
| if (key == null) error (SWT.ERROR_NULL_ARGUMENT); |
| |
| /* 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 |
| */ |
| public void setData (Object data) { |
| checkDevice (); |
| this.data = data; |
| } |
| |
| /** |
| * 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> |
| * </ul> |
| */ |
| public void setSynchronizer (Synchronizer synchronizer) { |
| checkDevice (); |
| if (synchronizer == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (this.synchronizer != null) { |
| this.synchronizer.runAsyncMessages(); |
| } |
| this.synchronizer = synchronizer; |
| } |
| |
| void showIMWindow (Control control) { |
| imControl = control; |
| if (preeditWindow == 0) { |
| preeditWindow = OS.gtk_window_new (OS.GTK_WINDOW_POPUP); |
| if (preeditWindow == 0) error (SWT.ERROR_NO_HANDLES); |
| preeditLabel = OS.gtk_label_new (null); |
| if (preeditLabel == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.gtk_container_add (preeditWindow, preeditLabel); |
| OS.gtk_widget_show (preeditLabel); |
| } |
| int /*long*/ [] preeditString = new int /*long*/ [1]; |
| int /*long*/ [] pangoAttrs = new int /*long*/ [1]; |
| int /*long*/ imHandle = control.imHandle (); |
| OS.gtk_im_context_get_preedit_string (imHandle, preeditString, pangoAttrs, null); |
| if (preeditString [0] != 0 && OS.strlen (preeditString [0]) > 0) { |
| OS.gtk_widget_modify_bg (preeditWindow, OS.GTK_STATE_NORMAL, control.getBackgroundColor ()); |
| OS.gtk_widget_modify_fg (preeditLabel, OS.GTK_STATE_NORMAL, control.getForegroundColor ()); |
| OS.gtk_widget_modify_font (preeditLabel, control.getFontDescription ()); |
| if (pangoAttrs [0] != 0) OS.gtk_label_set_attributes (preeditLabel, pangoAttrs[0]); |
| OS.gtk_label_set_text (preeditLabel, preeditString [0]); |
| Point point = control.toDisplay (control.getIMCaretPos ()); |
| OS.gtk_window_move (preeditWindow, point.x, point.y); |
| GtkRequisition requisition = new GtkRequisition (); |
| OS.gtk_widget_size_request (preeditLabel, requisition); |
| OS.gtk_window_resize (preeditWindow, requisition.width, requisition.height); |
| OS.gtk_widget_show (preeditWindow); |
| } else { |
| OS.gtk_widget_hide (preeditWindow); |
| } |
| if (preeditString [0] != 0) OS.g_free (preeditString [0]); |
| if (pangoAttrs [0] != 0) OS.pango_attr_list_unref (pangoAttrs [0]); |
| } |
| |
| /** |
| * 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 (); |
| //TODO need to sleep waiting for the next event |
| do { |
| if (getMessageCount () != 0) break; |
| if (OS.gtk_events_pending () != 0) break; |
| try { |
| synchronized (OS_LOCK) { |
| OS_LOCK.wait (50); |
| } |
| } catch (Exception e) { |
| return false; |
| } |
| } while (true); |
| return true; |
| } |
| |
| /** |
| * 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. |
| * |
| * @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 (timerIds == null) timerIds = new int [4]; |
| int index = 0; |
| while (index < timerList.length) { |
| if (timerList [index] == runnable) break; |
| index++; |
| } |
| if (index != timerList.length) { |
| OS.gtk_timeout_remove (timerIds [index]); |
| timerList [index] = null; |
| timerIds [index] = 0; |
| if (milliseconds < 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 [] newTimerIds = new int [timerIds.length + 4]; |
| System.arraycopy (timerIds, 0, newTimerIds, 0, timerIds.length); |
| timerIds = newTimerIds; |
| } |
| } |
| int timerId = OS.gtk_timeout_add (milliseconds, timerProc, index); |
| if (timerId != 0) { |
| timerIds [index] = timerId; |
| timerList [index] = runnable; |
| } |
| } |
| |
| int /*long*/ timerProc (int /*long*/ i) { |
| if (timerList == null) return 0; |
| int index = (int)/*64*/i; |
| if (0 <= index && index < timerList.length) { |
| Runnable runnable = timerList [index]; |
| timerList [index] = null; |
| timerIds [index] = 0; |
| if (runnable != null) runnable.run (); |
| } |
| return 0; |
| } |
| |
| int /*long*/ caretProc (int /*long*/ clientData) { |
| caretId = 0; |
| if (currentCaret == null) { |
| return 0; |
| } |
| if (currentCaret.blinkCaret()) { |
| int blinkRate = currentCaret.blinkRate; |
| caretId = OS.gtk_timeout_add (blinkRate, caretProc, 0); |
| } else { |
| currentCaret = null; |
| } |
| return 0; |
| } |
| |
| int /*long*/ pixbufCellDataProc (int /*long*/ tree_column, int /*long*/ cell, int /*long*/ tree_model, int /*long*/ iter, int /*long*/ data) { |
| Widget widget = getWidget (data); |
| if (widget == null) return 0; |
| return widget.pixbufCellDataProc (tree_column, cell, tree_model, iter, data); |
| } |
| int /*long*/ textCellDataProc (int /*long*/ tree_column, int /*long*/ cell, int /*long*/ tree_model, int /*long*/ iter, int /*long*/ data) { |
| Widget widget = getWidget (data); |
| if (widget == null) return 0; |
| return widget.textCellDataProc (tree_column, cell, tree_model, iter, data); |
| } |
| |
| int /*long*/ treeSelectionProc (int /*long*/ model, int /*long*/ path, int /*long*/ iter, int /*long*/ data) { |
| Widget widget = getWidget (data); |
| if (widget == null) return 0; |
| return widget.treeSelectionProc (model, path, iter, treeSelection, treeSelectionLength++); |
| } |
| |
| 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); |
| } |
| } |
| |
| void setCurrentCaret (Caret caret) { |
| if (caretId != 0) OS.gtk_timeout_remove(caretId); |
| caretId = 0; |
| currentCaret = caret; |
| if (caret == null) return; |
| int blinkRate = currentCaret.blinkRate; |
| caretId = OS.gtk_timeout_add (blinkRate, caretProc, 0); |
| } |
| |
| int /*long*/ shellMapProc (int /*long*/ handle, int /*long*/ arg0, int /*long*/ user_data) { |
| Widget widget = getWidget (handle); |
| if (widget == null) return 0; |
| return widget.shellMapProc (handle, arg0, user_data); |
| } |
| |
| /** |
| * 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. |
| * |
| * @param runnable code to run on the user-interface thread. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_FAILED_EXEC - if an exception occured when executing the runnable</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see #asyncExec |
| */ |
| public void syncExec (Runnable runnable) { |
| if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED); |
| synchronizer.syncExec (runnable); |
| } |
| |
| 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 (); |
| flushExposes (); |
| OS.gdk_window_process_all_updates (); |
| } |
| |
| /** |
| * 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 () { |
| if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED); |
| if (thread == Thread.currentThread ()) return; |
| wakeThread (); |
| } |
| |
| void wakeThread () { |
| // NOT IMPLEMENTED - need to wake up the event loop |
| } |
| |
| static char wcsToMbcs (char ch) { |
| int key = ch & 0xFFFF; |
| if (key <= 0x7F) return ch; |
| byte [] buffer = Converter.wcsToMbcs (null, new char [] {ch}, false); |
| if (buffer.length == 1) return (char) buffer [0]; |
| if (buffer.length == 2) { |
| return (char) (((buffer [0] & 0xFF) << 8) | (buffer [1] & 0xFF)); |
| } |
| return 0; |
| } |
| |
| int /*long*/ windowProc (int /*long*/ handle, int /*long*/ user_data) { |
| Widget widget = getWidget (handle); |
| if (widget == null) return 0; |
| return widget.windowProc (handle, user_data); |
| } |
| |
| int /*long*/ windowProc (int /*long*/ handle, int /*long*/ arg0, int /*long*/ user_data) { |
| Widget widget = getWidget (handle); |
| if (widget == null) return 0; |
| return widget.windowProc (handle, arg0, user_data); |
| } |
| |
| int /*long*/ windowProc (int /*long*/ handle, int /*long*/ arg0, int /*long*/ arg1, int /*long*/ user_data) { |
| Widget widget = getWidget (handle); |
| if (widget == null) return 0; |
| return widget.windowProc (handle, arg0, arg1, user_data); |
| } |
| |
| int /*long*/ windowProc (int /*long*/ handle, int /*long*/ arg0, int /*long*/ arg1, int /*long*/ arg2, int /*long*/ user_data) { |
| Widget widget = getWidget (handle); |
| if (widget == null) return 0; |
| return widget.windowProc (handle, arg0, arg1, arg2, user_data); |
| } |
| |
| int /*long*/ windowTimerProc (int /*long*/ handle) { |
| Widget widget = getWidget (handle); |
| if (widget == null) return 0; |
| return widget.timerProc (handle); |
| } |
| |
| } |
