| /******************************************************************************* |
| * Copyright (c) 2000, 2018 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.swt.widgets; |
| |
| import java.net.*; |
| import java.util.*; |
| import java.util.function.*; |
| |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.graphics.*; |
| import org.eclipse.swt.internal.*; |
| import org.eclipse.swt.internal.win32.*; |
| |
| /** |
| * Instances of this class are responsible for managing the |
| * connection between SWT and the underlying operating |
| * system. Their most important function is to implement |
| * the SWT event loop in terms of the platform event model. |
| * They also provide various methods for accessing information |
| * about the operating system, and have overall control over |
| * the operating system resources which SWT allocates. |
| * <p> |
| * Applications which are built with SWT will <em>almost always</em> |
| * require only a single display. In particular, some platforms |
| * which SWT supports will not allow more than one <em>active</em> |
| * display. In other words, some platforms do not support |
| * creating a new display if one already exists that has not been |
| * sent the <code>dispose()</code> message. |
| * <p> |
| * In SWT, the thread which creates a <code>Display</code> |
| * instance is distinguished as the <em>user-interface thread</em> |
| * for that display. |
| * </p> |
| * The user-interface thread for a particular display has the |
| * following special attributes: |
| * <ul> |
| * <li> |
| * The event loop for that display must be run from the thread. |
| * </li> |
| * <li> |
| * Some SWT API methods (notably, most of the public methods in |
| * <code>Widget</code> and its subclasses), may only be called |
| * from the thread. (To support multi-threaded user-interface |
| * applications, class <code>Display</code> provides inter-thread |
| * communication methods which allow threads other than the |
| * user-interface thread to request that it perform operations |
| * on their behalf.) |
| * </li> |
| * <li> |
| * The thread is not allowed to construct other |
| * <code>Display</code>s until that display has been disposed. |
| * (Note that, this is in addition to the restriction mentioned |
| * above concerning platform support for multiple displays. Thus, |
| * the only way to have multiple simultaneously active displays, |
| * even on platforms which support it, is to have multiple threads.) |
| * </li> |
| * </ul> |
| * Enforcing these attributes allows SWT to be implemented directly |
| * on the underlying operating system's event model. This has |
| * numerous benefits including smaller footprint, better use of |
| * resources, safer memory management, clearer program logic, |
| * better performance, and fewer overall operating system threads |
| * required. The down side however, is that care must be taken |
| * (only) when constructing multi-threaded applications to use the |
| * inter-thread communication mechanisms which this class provides |
| * when required. |
| * </p><p> |
| * All SWT API methods which may only be called from the user-interface |
| * thread are distinguished in their documentation by indicating that |
| * they throw the "<code>ERROR_THREAD_INVALID_ACCESS</code>" |
| * SWT exception. |
| * </p> |
| * <dl> |
| * <dt><b>Styles:</b></dt> |
| * <dd>(none)</dd> |
| * <dt><b>Events:</b></dt> |
| * <dd>Close, Dispose, OpenDocument, Settings, Skin</dd> |
| * </dl> |
| * <p> |
| * IMPORTANT: This class is <em>not</em> intended to be subclassed. |
| * </p> |
| * @see #syncExec |
| * @see #asyncExec |
| * @see #wake |
| * @see #readAndDispatch |
| * @see #sleep |
| * @see Device#dispose |
| * @see <a href="http://www.eclipse.org/swt/snippets/#display">Display snippets</a> |
| * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> |
| * @noextend This class is not intended to be subclassed by clients. |
| */ |
| public class Display extends Device { |
| |
| /** |
| * the handle to the OS message queue |
| * (Warning: This field is platform dependent) |
| * <p> |
| * <b>IMPORTANT:</b> This field is <em>not</em> part of the SWT |
| * public API. It is marked public only so that it can be shared |
| * within the packages provided by SWT. It is not available on all |
| * platforms and should never be accessed from application code. |
| * </p> |
| * |
| * @noreference This field is not intended to be referenced by clients. |
| */ |
| public MSG msg = new MSG (); |
| |
| static String APP_NAME = "SWT"; //$NON-NLS-1$ |
| static String APP_VERSION = ""; //$NON-NLS-1$ |
| |
| /* Windows and Events */ |
| Event [] eventQueue; |
| Callback windowCallback; |
| long /*int*/ windowProc; |
| int threadId; |
| TCHAR windowClass, windowShadowClass, windowOwnDCClass; |
| static int WindowClassCount; |
| static final String WindowName = "SWT_Window"; //$NON-NLS-1$ |
| static final String WindowShadowName = "SWT_WindowShadow"; //$NON-NLS-1$ |
| static final String WindowOwnDCName = "SWT_WindowOwnDC"; //$NON-NLS-1$ |
| EventTable eventTable, filterTable; |
| boolean useOwnDC; |
| |
| /* Widget Table */ |
| int freeSlot; |
| int [] indexTable; |
| Control lastControl, lastGetControl; |
| long /*int*/ lastHwnd, lastGetHwnd; |
| Control [] controlTable; |
| static final int GROW_SIZE = 1024; |
| static final int SWT_OBJECT_INDEX = OS.GlobalAddAtom (new TCHAR (0, "SWT_OBJECT_INDEX", true)); //$NON-NLS-1$ |
| |
| /* Startup info */ |
| static STARTUPINFO lpStartupInfo; |
| static { |
| lpStartupInfo = new STARTUPINFO (); |
| lpStartupInfo.cb = STARTUPINFO.sizeof; |
| OS.GetStartupInfo (lpStartupInfo); |
| } |
| |
| /* XP Themes */ |
| long /*int*/ hButtonTheme, hEditTheme, hExplorerBarTheme, hScrollBarTheme, hTabTheme; |
| static final char [] BUTTON = new char [] {'B', 'U', 'T', 'T', 'O', 'N', 0}; |
| static final char [] EDIT = new char [] {'E', 'D', 'I', 'T', 0}; |
| static final char [] EXPLORER = new char [] {'E', 'X', 'P', 'L', 'O', 'R', 'E', 'R', 0}; |
| static final char [] EXPLORERBAR = new char [] {'E', 'X', 'P', 'L', 'O', 'R', 'E', 'R', 'B', 'A', 'R', 0}; |
| static final char [] SCROLLBAR = new char [] {'S', 'C', 'R', 'O', 'L', 'L', 'B', 'A', 'R', 0}; |
| static final char [] LISTVIEW = new char [] {'L', 'I', 'S', 'T', 'V', 'I', 'E', 'W', 0}; |
| static final char [] TAB = new char [] {'T', 'A', 'B', 0}; |
| static final char [] TREEVIEW = new char [] {'T', 'R', 'E', 'E', 'V', 'I', 'E', 'W', 0}; |
| |
| /* Focus */ |
| int focusEvent; |
| Control focusControl; |
| boolean fixFocus; |
| |
| /* Menus */ |
| Menu [] bars, popups; |
| MenuItem [] items; |
| |
| /* |
| * The start value for WM_COMMAND id's. |
| * Windows reserves the values 0..100. |
| * |
| * The SmartPhone SWT resource file reserves |
| * the values 101..107. |
| */ |
| static final int ID_START = 108; |
| |
| /* Filter Hook */ |
| Callback msgFilterCallback; |
| long /*int*/ msgFilterProc, filterHook; |
| MSG hookMsg = new MSG (); |
| boolean runDragDrop = true, dragCancelled = false; |
| |
| /* Idle Hook */ |
| Callback foregroundIdleCallback; |
| long /*int*/ foregroundIdleProc, idleHook; |
| |
| /* Message Hook and Embedding */ |
| boolean ignoreNextKey; |
| Callback getMsgCallback, embeddedCallback; |
| long /*int*/ getMsgProc, msgHook, embeddedHwnd, embeddedProc; |
| static final String AWT_WINDOW_CLASS = "SunAwtWindow"; //$NON-NLS-1$ |
| static final short [] ACCENTS = new short [] {'~', '`', '\'', '^', '"'}; |
| |
| /* Sync/Async Widget Communication */ |
| Synchronizer synchronizer = new Synchronizer (this); |
| Consumer<RuntimeException> runtimeExceptionHandler = DefaultExceptionHandler.RUNTIME_EXCEPTION_HANDLER; |
| Consumer<Error> errorHandler = DefaultExceptionHandler.RUNTIME_ERROR_HANDLER; |
| boolean runMessagesInIdle = false, runMessagesInMessageProc = true; |
| static final String RUN_MESSAGES_IN_IDLE_KEY = "org.eclipse.swt.internal.win32.runMessagesInIdle"; //$NON-NLS-1$ |
| static final String RUN_MESSAGES_IN_MESSAGE_PROC_KEY = "org.eclipse.swt.internal.win32.runMessagesInMessageProc"; //$NON-NLS-1$ |
| static final String USE_OWNDC_KEY = "org.eclipse.swt.internal.win32.useOwnDC"; //$NON-NLS-1$ |
| static final String ACCEL_KEY_HIT = "org.eclipse.swt.internal.win32.accelKeyHit"; //$NON-NLS-1$ |
| Thread thread; |
| |
| /* Display Shutdown */ |
| Runnable [] disposeList; |
| |
| /* Deferred Layout list */ |
| Composite[] layoutDeferred; |
| int layoutDeferredCount; |
| |
| /* System Tray */ |
| Tray tray; |
| int nextTrayId; |
| |
| /* TaskBar */ |
| TaskBar taskBar; |
| static final String TASKBAR_EVENT = "/SWTINTERNAL_ID"; //$NON-NLS-1$ |
| static final String LAUNCHER_PREFIX = "--launcher.openFile "; //$NON-NLS-1$ |
| |
| /* Timers */ |
| long /*int*/ [] timerIds; |
| Runnable [] timerList; |
| long /*int*/ nextTimerId = SETTINGS_ID + 1; |
| |
| /* Settings */ |
| static final long /*int*/ SETTINGS_ID = 100; |
| static final int SETTINGS_DELAY = 2000; |
| |
| /* Keyboard and Mouse */ |
| RECT clickRect; |
| int clickCount, lastTime, lastButton; |
| long /*int*/ lastClickHwnd; |
| int scrollRemainder, scrollHRemainder; |
| int lastKey, lastMouse, lastAscii; |
| boolean lastVirtual, lastNull, lastDead; |
| byte [] keyboard = new byte [256]; |
| boolean accelKeyHit, mnemonicKeyHit; |
| boolean lockActiveWindow, captureChanged, xMouse; |
| |
| /* Gesture state */ |
| double magStartDistance, lastDistance; |
| double rotationAngle; |
| int lastX, lastY; |
| |
| /* Touch state */ |
| TouchSource [] touchSources; |
| |
| /* Tool Tips */ |
| int nextToolTipId; |
| |
| /* MDI */ |
| boolean ignoreRestoreFocus; |
| Control lastHittestControl; |
| int lastHittest; |
| |
| /* Message Only Window */ |
| Callback messageCallback; |
| long /*int*/ hwndMessage, messageProc; |
| |
| /* System Resources */ |
| LOGFONT lfSystemFont; |
| Font systemFont; |
| Image errorImage, infoImage, questionImage, warningIcon; |
| Cursor [] cursors = new Cursor [SWT.CURSOR_HAND + 1]; |
| Resource [] resources; |
| static final int RESOURCE_SIZE = 1 + 4 + SWT.CURSOR_HAND + 1; |
| |
| /* ImageList Cache */ |
| ImageList[] imageList, toolImageList, toolHotImageList, toolDisabledImageList; |
| |
| /* Custom Colors for ChooseColor */ |
| long /*int*/ lpCustColors; |
| |
| /* Table */ |
| char [] tableBuffer; |
| |
| /* Resize and move recursion */ |
| int resizeCount; |
| static final int RESIZE_LIMIT = 4; |
| |
| /* Display Data */ |
| Object data; |
| String [] keys; |
| Object [] values; |
| |
| /* Key Mappings */ |
| static final int [] [] KeyTable = { |
| |
| /* Keyboard and Mouse Masks */ |
| {OS.VK_MENU, SWT.ALT}, |
| {OS.VK_SHIFT, SWT.SHIFT}, |
| {OS.VK_CONTROL, SWT.CONTROL}, |
| // {OS.VK_????, SWT.COMMAND}, |
| |
| /* NOT CURRENTLY USED */ |
| // {OS.VK_LBUTTON, SWT.BUTTON1}, |
| // {OS.VK_MBUTTON, SWT.BUTTON3}, |
| // {OS.VK_RBUTTON, SWT.BUTTON2}, |
| |
| /* Non-Numeric Keypad Keys */ |
| {OS.VK_UP, SWT.ARROW_UP}, |
| {OS.VK_DOWN, SWT.ARROW_DOWN}, |
| {OS.VK_LEFT, SWT.ARROW_LEFT}, |
| {OS.VK_RIGHT, SWT.ARROW_RIGHT}, |
| {OS.VK_PRIOR, SWT.PAGE_UP}, |
| {OS.VK_NEXT, SWT.PAGE_DOWN}, |
| {OS.VK_HOME, SWT.HOME}, |
| {OS.VK_END, SWT.END}, |
| {OS.VK_INSERT, SWT.INSERT}, |
| |
| /* Virtual and Ascii Keys */ |
| {OS.VK_BACK, SWT.BS}, |
| {OS.VK_RETURN, SWT.CR}, |
| {OS.VK_DELETE, SWT.DEL}, |
| {OS.VK_ESCAPE, SWT.ESC}, |
| {OS.VK_RETURN, SWT.LF}, |
| {OS.VK_TAB, SWT.TAB}, |
| |
| /* Functions Keys */ |
| {OS.VK_F1, SWT.F1}, |
| {OS.VK_F2, SWT.F2}, |
| {OS.VK_F3, SWT.F3}, |
| {OS.VK_F4, SWT.F4}, |
| {OS.VK_F5, SWT.F5}, |
| {OS.VK_F6, SWT.F6}, |
| {OS.VK_F7, SWT.F7}, |
| {OS.VK_F8, SWT.F8}, |
| {OS.VK_F9, SWT.F9}, |
| {OS.VK_F10, SWT.F10}, |
| {OS.VK_F11, SWT.F11}, |
| {OS.VK_F12, SWT.F12}, |
| {OS.VK_F13, SWT.F13}, |
| {OS.VK_F14, SWT.F14}, |
| {OS.VK_F15, SWT.F15}, |
| {OS.VK_F16, SWT.F16}, |
| {OS.VK_F17, SWT.F17}, |
| {OS.VK_F18, SWT.F18}, |
| {OS.VK_F19, SWT.F19}, |
| {OS.VK_F20, SWT.F20}, |
| |
| /* Numeric Keypad Keys */ |
| {OS.VK_MULTIPLY, SWT.KEYPAD_MULTIPLY}, |
| {OS.VK_ADD, SWT.KEYPAD_ADD}, |
| {OS.VK_RETURN, SWT.KEYPAD_CR}, |
| {OS.VK_SUBTRACT, SWT.KEYPAD_SUBTRACT}, |
| {OS.VK_DECIMAL, SWT.KEYPAD_DECIMAL}, |
| {OS.VK_DIVIDE, SWT.KEYPAD_DIVIDE}, |
| {OS.VK_NUMPAD0, SWT.KEYPAD_0}, |
| {OS.VK_NUMPAD1, SWT.KEYPAD_1}, |
| {OS.VK_NUMPAD2, SWT.KEYPAD_2}, |
| {OS.VK_NUMPAD3, SWT.KEYPAD_3}, |
| {OS.VK_NUMPAD4, SWT.KEYPAD_4}, |
| {OS.VK_NUMPAD5, SWT.KEYPAD_5}, |
| {OS.VK_NUMPAD6, SWT.KEYPAD_6}, |
| {OS.VK_NUMPAD7, SWT.KEYPAD_7}, |
| {OS.VK_NUMPAD8, SWT.KEYPAD_8}, |
| {OS.VK_NUMPAD9, SWT.KEYPAD_9}, |
| // {OS.VK_????, SWT.KEYPAD_EQUAL}, |
| |
| /* Other keys */ |
| {OS.VK_CAPITAL, SWT.CAPS_LOCK}, |
| {OS.VK_NUMLOCK, SWT.NUM_LOCK}, |
| {OS.VK_SCROLL, SWT.SCROLL_LOCK}, |
| {OS.VK_PAUSE, SWT.PAUSE}, |
| {OS.VK_CANCEL, SWT.BREAK}, |
| {OS.VK_SNAPSHOT, SWT.PRINT_SCREEN}, |
| // {OS.VK_????, SWT.HELP}, |
| |
| }; |
| |
| /* Multiple Displays */ |
| static Display Default; |
| static Display [] Displays = new Display [4]; |
| |
| /* Multiple Monitors */ |
| Monitor[] monitors = null; |
| int monitorCount = 0; |
| |
| /* Modality */ |
| Shell [] modalShells; |
| Dialog modalDialog; |
| static boolean TrimEnabled = false; |
| |
| /* Private SWT Window Messages */ |
| static final int SWT_GETACCELCOUNT = OS.WM_APP; |
| static final int SWT_GETACCEL = OS.WM_APP + 1; |
| static final int SWT_KEYMSG = OS.WM_APP + 2; |
| static final int SWT_DESTROY = OS.WM_APP + 3; |
| static final int SWT_TRAYICONMSG = OS.WM_APP + 4; |
| static final int SWT_NULL = OS.WM_APP + 5; |
| static final int SWT_RUNASYNC = OS.WM_APP + 6; |
| static int TASKBARCREATED; |
| static int TASKBARBUTTONCREATED; |
| static int SWT_RESTORECARET; |
| static int DI_GETDRAGIMAGE; |
| static int SWT_OPENDOC; |
| |
| /* Skinning support */ |
| Widget [] skinList = new Widget [GROW_SIZE]; |
| int skinCount; |
| |
| /* Package Name */ |
| static final String PACKAGE_PREFIX = "org.eclipse.swt.widgets."; //$NON-NLS-1$ |
| /* |
| * This code is intentionally commented. In order |
| * to support CLDC, .class cannot be used because |
| * it does not compile on some Java compilers when |
| * they are targeted for CLDC. |
| */ |
| // static { |
| // String name = Display.class.getName (); |
| // int index = name.lastIndexOf ('.'); |
| // PACKAGE_PREFIX = name.substring (0, index + 1); |
| // } |
| |
| /* |
| * TEMPORARY CODE. Install the runnable that |
| * gets the current display. This code will |
| * be removed in the future. |
| */ |
| static { |
| DeviceFinder = () -> { |
| Device device = getCurrent (); |
| if (device == null) { |
| device = getDefault (); |
| } |
| setDevice (device); |
| }; |
| } |
| |
| /* |
| * TEMPORARY CODE. |
| */ |
| static void setDevice (Device device) { |
| CurrentDevice = device; |
| } |
| |
| /** |
| * Constructs a new instance of this class. |
| * <p> |
| * Note: The resulting display is marked as the <em>current</em> |
| * display. If this is the first display which has been |
| * constructed since the application started, it is also |
| * marked as the <em>default</em> display. |
| * </p> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if called from a thread that already created an existing display</li> |
| * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
| * </ul> |
| * |
| * @see #getCurrent |
| * @see #getDefault |
| * @see Widget#checkSubclass |
| * @see Shell |
| */ |
| public Display () { |
| this (null); |
| } |
| |
| /** |
| * Constructs a new instance of this class using the parameter. |
| * |
| * @param data the device data |
| */ |
| public Display (DeviceData data) { |
| super (data); |
| } |
| |
| Control _getFocusControl () { |
| return findControl (OS.GetFocus ()); |
| } |
| |
| void addBar (Menu menu) { |
| if (bars == null) bars = new Menu [4]; |
| int length = bars.length; |
| for (int i=0; i<length; i++) { |
| if (bars [i] == menu) return; |
| } |
| int index = 0; |
| while (index < length) { |
| if (bars [index] == null) break; |
| index++; |
| } |
| if (index == length) { |
| Menu [] newBars = new Menu [length + 4]; |
| System.arraycopy (bars, 0, newBars, 0, length); |
| bars = newBars; |
| } |
| bars [index] = menu; |
| } |
| |
| void addControl (long /*int*/ handle, Control control) { |
| if (handle == 0) return; |
| if (freeSlot == -1) { |
| int length = (freeSlot = indexTable.length) + GROW_SIZE; |
| int [] newIndexTable = new int [length]; |
| Control [] newControlTable = new Control [length]; |
| System.arraycopy (indexTable, 0, newIndexTable, 0, freeSlot); |
| System.arraycopy (controlTable, 0, newControlTable, 0, freeSlot); |
| for (int i=freeSlot; i<length-1; i++) newIndexTable [i] = i + 1; |
| newIndexTable [length - 1] = -1; |
| indexTable = newIndexTable; |
| controlTable = newControlTable; |
| } |
| OS.SetProp (handle, SWT_OBJECT_INDEX, freeSlot + 1); |
| int oldSlot = freeSlot; |
| freeSlot = indexTable [oldSlot]; |
| indexTable [oldSlot] = -2; |
| controlTable [oldSlot] = control; |
| } |
| |
| void addSkinnableWidget (Widget widget) { |
| if (skinCount >= skinList.length) { |
| Widget[] newSkinWidgets = new Widget [skinList.length + GROW_SIZE]; |
| System.arraycopy (skinList, 0, newSkinWidgets, 0, skinList.length); |
| skinList = newSkinWidgets; |
| } |
| skinList [skinCount++] = widget; |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when an event of the given type occurs anywhere |
| * in a widget. The event type is one of the event constants |
| * defined in class <code>SWT</code>. When the event does occur, |
| * the listener is notified by sending it the <code>handleEvent()</code> |
| * message. |
| * <p> |
| * Setting the type of an event to <code>SWT.None</code> from |
| * within the <code>handleEvent()</code> method can be used to |
| * change the event type and stop subsequent Java listeners |
| * from running. Because event filters run before other listeners, |
| * event filters can both block other listeners and set arbitrary |
| * fields within an event. For this reason, event filters are both |
| * powerful and dangerous. They should generally be avoided for |
| * performance, debugging and code maintenance reasons. |
| * </p> |
| * |
| * @param eventType the type of event to listen for |
| * @param listener the listener which should be notified when the event occurs |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see Listener |
| * @see SWT |
| * @see #removeFilter |
| * @see #removeListener |
| * |
| * @since 3.0 |
| */ |
| public void addFilter (int eventType, Listener listener) { |
| checkDevice (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (filterTable == null) filterTable = new EventTable (); |
| filterTable.hook (eventType, listener); |
| } |
| |
| void addLayoutDeferred (Composite comp) { |
| if (layoutDeferred == null) layoutDeferred = new Composite [64]; |
| if (layoutDeferredCount == layoutDeferred.length) { |
| Composite [] temp = new Composite [layoutDeferred.length + 64]; |
| System.arraycopy (layoutDeferred, 0, temp, 0, layoutDeferred.length); |
| layoutDeferred = temp; |
| } |
| layoutDeferred[layoutDeferredCount++] = comp; |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when an event of the given type occurs. The event |
| * type is one of the event constants defined in class <code>SWT</code>. |
| * When the event does occur in the display, the listener is notified by |
| * sending it the <code>handleEvent()</code> message. |
| * |
| * @param eventType the type of event to listen for |
| * @param listener the listener which should be notified when the event occurs |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see Listener |
| * @see SWT |
| * @see #removeListener |
| * |
| * @since 2.0 |
| */ |
| public void addListener (int eventType, Listener listener) { |
| checkDevice (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) eventTable = new EventTable (); |
| eventTable.hook (eventType, listener); |
| } |
| |
| void addMenuItem (MenuItem item) { |
| if (items == null) items = new MenuItem [64]; |
| for (int i=0; i<items.length; i++) { |
| if (items [i] == null) { |
| item.id = i + ID_START; |
| items [i] = item; |
| return; |
| } |
| } |
| item.id = items.length + ID_START; |
| MenuItem [] newItems = new MenuItem [items.length + 64]; |
| newItems [items.length] = item; |
| System.arraycopy (items, 0, newItems, 0, items.length); |
| items = newItems; |
| } |
| |
| 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; |
| } |
| |
| int asciiKey (int key) { |
| /* Get the current keyboard. */ |
| for (int i=0; i<keyboard.length; i++) keyboard [i] = 0; |
| if (!OS.GetKeyboardState (keyboard)) return 0; |
| |
| /* Translate the key to ASCII or UNICODE using the virtual keyboard */ |
| char [] result = new char [1]; |
| if (OS.ToUnicode (key, key, keyboard, result, 1, 0) == 1) return result [0]; |
| return 0; |
| } |
| |
| /** |
| * Causes the <code>run()</code> method of the runnable to |
| * be invoked by the user-interface thread at the next |
| * reasonable opportunity. The caller of this method continues |
| * to run in parallel, and is not notified when the |
| * runnable has completed. Specifying <code>null</code> as the |
| * runnable simply wakes the user-interface thread when run. |
| * <p> |
| * Note that at the time the runnable is invoked, widgets |
| * that have the receiver as their display may have been |
| * disposed. Therefore, it is necessary to check for this |
| * case inside the runnable before accessing the widget. |
| * </p> |
| * |
| * @param runnable code to run on the user-interface thread or <code>null</code> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see #syncExec |
| */ |
| public void asyncExec (Runnable runnable) { |
| synchronized (Device.class) { |
| if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED); |
| synchronizer.asyncExec (runnable); |
| } |
| } |
| |
| /** |
| * Causes the system hardware to emit a short sound |
| * (if it supports this capability). |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void beep () { |
| checkDevice (); |
| OS.MessageBeep (OS.MB_OK); |
| } |
| |
| /** |
| * 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); |
| } |
| |
| @Override |
| protected void checkDevice () { |
| if (thread == null) error (SWT.ERROR_WIDGET_DISPOSED); |
| if (thread != Thread.currentThread ()) { |
| /* |
| * Bug in IBM JVM 1.6. For some reason, under |
| * conditions that are yet to be full understood, |
| * Thread.currentThread() is either returning null |
| * or a different instance from the one that was |
| * saved when the Display was created. This is |
| * possibly a JIT problem because modifying this |
| * method to print logging information when the |
| * error happens seems to fix the problem. The |
| * fix is to use operating system calls to verify |
| * that the current thread is not the Display thread. |
| * |
| * NOTE: Despite the fact that Thread.currentThread() |
| * is used in other places, the failure has not been |
| * observed in all places where it is called. |
| */ |
| if (threadId != OS.GetCurrentThreadId ()) { |
| error (SWT.ERROR_THREAD_INVALID_ACCESS); |
| } |
| } |
| if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED); |
| } |
| |
| static void checkDisplay (Thread thread, boolean multiple) { |
| synchronized (Device.class) { |
| for (int i=0; i<Displays.length; i++) { |
| if (Displays [i] != null) { |
| if (!multiple) SWT.error (SWT.ERROR_NOT_IMPLEMENTED, null, " [multiple displays]"); //$NON-NLS-1$ |
| if (Displays [i].thread == thread) SWT.error (SWT.ERROR_THREAD_INVALID_ACCESS); |
| } |
| } |
| } |
| } |
| |
| void clearModal (Shell shell) { |
| if (modalShells == null) return; |
| int index = 0, length = modalShells.length; |
| while (index < length) { |
| if (modalShells [index] == shell) break; |
| if (modalShells [index] == null) return; |
| index++; |
| } |
| if (index == length) return; |
| System.arraycopy (modalShells, index + 1, modalShells, index, --length - index); |
| modalShells [length] = null; |
| if (index == 0 && modalShells [0] == null) modalShells = null; |
| Shell [] shells = getShells (); |
| for (int i=0; i<shells.length; i++) shells [i].updateModal (); |
| } |
| |
| int controlKey (int key) { |
| int upper = (int)/*64*/OS.CharUpper ((short) key); |
| if (64 <= upper && upper <= 95) return upper & 0xBF; |
| return key; |
| } |
| |
| /** |
| * 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 |
| */ |
| @Override |
| protected void create (DeviceData data) { |
| checkSubclass (); |
| checkDisplay (thread = Thread.currentThread (), true); |
| createDisplay (data); |
| register (this); |
| if (Default == null) Default = this; |
| } |
| |
| void createDisplay (DeviceData data) { |
| } |
| |
| static long /*int*/ create32bitDIB (Image image) { |
| int transparentPixel = -1, alpha = -1; |
| long /*int*/ hMask = 0, hBitmap = 0; |
| byte[] alphaData = null; |
| switch (image.type) { |
| case SWT.ICON: |
| ICONINFO info = new ICONINFO (); |
| OS.GetIconInfo (image.handle, info); |
| hBitmap = info.hbmColor; |
| hMask = info.hbmMask; |
| break; |
| case SWT.BITMAP: |
| ImageData data = image.getImageData (DPIUtil.getDeviceZoom ()); |
| hBitmap = image.handle; |
| alpha = data.alpha; |
| alphaData = data.alphaData; |
| transparentPixel = data.transparentPixel; |
| break; |
| } |
| BITMAP bm = new BITMAP (); |
| OS.GetObject (hBitmap, BITMAP.sizeof, bm); |
| int imgWidth = bm.bmWidth; |
| int imgHeight = bm.bmHeight; |
| long /*int*/ hDC = OS.GetDC (0); |
| long /*int*/ srcHdc = OS.CreateCompatibleDC (hDC); |
| long /*int*/ oldSrcBitmap = OS.SelectObject (srcHdc, hBitmap); |
| long /*int*/ memHdc = OS.CreateCompatibleDC (hDC); |
| BITMAPINFOHEADER bmiHeader = new BITMAPINFOHEADER (); |
| bmiHeader.biSize = BITMAPINFOHEADER.sizeof; |
| bmiHeader.biWidth = imgWidth; |
| bmiHeader.biHeight = -imgHeight; |
| bmiHeader.biPlanes = 1; |
| bmiHeader.biBitCount = (short)32; |
| bmiHeader.biCompression = OS.BI_RGB; |
| byte [] bmi = new byte [BITMAPINFOHEADER.sizeof]; |
| OS.MoveMemory (bmi, bmiHeader, BITMAPINFOHEADER.sizeof); |
| long /*int*/ [] pBits = new long /*int*/ [1]; |
| long /*int*/ memDib = OS.CreateDIBSection (0, bmi, OS.DIB_RGB_COLORS, pBits, 0, 0); |
| if (memDib == 0) SWT.error (SWT.ERROR_NO_HANDLES); |
| long /*int*/ oldMemBitmap = OS.SelectObject (memHdc, memDib); |
| BITMAP dibBM = new BITMAP (); |
| OS.GetObject (memDib, BITMAP.sizeof, dibBM); |
| int sizeInBytes = dibBM.bmWidthBytes * dibBM.bmHeight; |
| OS.BitBlt (memHdc, 0, 0, imgWidth, imgHeight, srcHdc, 0, 0, OS.SRCCOPY); |
| byte red = 0, green = 0, blue = 0; |
| if (transparentPixel != -1) { |
| if (bm.bmBitsPixel <= 8) { |
| byte [] color = new byte [4]; |
| OS.GetDIBColorTable (srcHdc, transparentPixel, 1, color); |
| blue = color [0]; |
| green = color [1]; |
| red = color [2]; |
| } else { |
| switch (bm.bmBitsPixel) { |
| case 16: |
| blue = (byte)((transparentPixel & 0x1F) << 3); |
| green = (byte)((transparentPixel & 0x3E0) >> 2); |
| red = (byte)((transparentPixel & 0x7C00) >> 7); |
| break; |
| case 24: |
| blue = (byte)((transparentPixel & 0xFF0000) >> 16); |
| green = (byte)((transparentPixel & 0xFF00) >> 8); |
| red = (byte)(transparentPixel & 0xFF); |
| break; |
| case 32: |
| blue = (byte)((transparentPixel & 0xFF000000) >>> 24); |
| green = (byte)((transparentPixel & 0xFF0000) >> 16); |
| red = (byte)((transparentPixel & 0xFF00) >> 8); |
| break; |
| } |
| } |
| } |
| byte [] srcData = new byte [sizeInBytes]; |
| OS.MoveMemory (srcData, pBits [0], sizeInBytes); |
| if (hMask != 0) { |
| OS.SelectObject(srcHdc, hMask); |
| for (int y = 0, dp = 0; y < imgHeight; ++y) { |
| for (int x = 0; x < imgWidth; ++x) { |
| if (OS.GetPixel(srcHdc, x, y) != 0) { |
| srcData [dp + 0] = srcData [dp + 1] = srcData [dp + 2] = srcData[dp + 3] = (byte)0; |
| } else { |
| srcData[dp + 3] = (byte)0xFF; |
| } |
| dp += 4; |
| } |
| } |
| } else if (alpha != -1) { |
| for (int y = 0, dp = 0; y < imgHeight; ++y) { |
| for (int x = 0; x < imgWidth; ++x) { |
| int r = ((srcData[dp + 0] & 0xFF) * alpha) + 128; |
| r = (r + (r >> 8)) >> 8; |
| int g = ((srcData[dp + 1] & 0xFF) * alpha) + 128; |
| g = (g + (g >> 8)) >> 8; |
| int b = ((srcData[dp + 2] & 0xFF) * alpha) + 128; |
| b = (b + (b >> 8)) >> 8; |
| srcData[dp+0] = (byte)r; |
| srcData[dp+1] = (byte)g; |
| srcData[dp+2] = (byte)b; |
| srcData[dp+3] = (byte)alpha; |
| dp += 4; |
| } |
| } |
| } else if (alphaData != null) { |
| for (int y = 0, dp = 0, ap = 0; y < imgHeight; ++y) { |
| for (int x = 0; x < imgWidth; ++x) { |
| int a = alphaData[ap++] & 0xFF; |
| int r = ((srcData[dp + 0] & 0xFF) * a) + 128; |
| r = (r + (r >> 8)) >> 8; |
| int g = ((srcData[dp + 1] & 0xFF) * a) + 128; |
| g = (g + (g >> 8)) >> 8; |
| int b = ((srcData[dp + 2] & 0xFF) * a) + 128; |
| b = (b + (b >> 8)) >> 8; |
| srcData[dp+0] = (byte)r; |
| srcData[dp+1] = (byte)g; |
| srcData[dp+2] = (byte)b; |
| srcData[dp+3] = (byte)a; |
| dp += 4; |
| } |
| } |
| } else if (transparentPixel != -1) { |
| for (int y = 0, dp = 0; y < imgHeight; ++y) { |
| for (int x = 0; x < imgWidth; ++x) { |
| if (srcData [dp] == blue && srcData [dp + 1] == green && srcData [dp + 2] == red) { |
| srcData [dp + 0] = srcData [dp + 1] = srcData [dp + 2] = srcData [dp + 3] = (byte)0; |
| } else { |
| srcData [dp + 3] = (byte)0xFF; |
| } |
| dp += 4; |
| } |
| } |
| } else { |
| for (int y = 0, dp = 0; y < imgHeight; ++y) { |
| for (int x = 0; x < imgWidth; ++x) { |
| srcData [dp + 3] = (byte)0xFF; |
| dp += 4; |
| } |
| } |
| } |
| OS.MoveMemory (pBits [0], srcData, sizeInBytes); |
| OS.SelectObject (srcHdc, oldSrcBitmap); |
| OS.SelectObject (memHdc, oldMemBitmap); |
| OS.DeleteObject (srcHdc); |
| OS.DeleteObject (memHdc); |
| OS.ReleaseDC (0, hDC); |
| if (hBitmap != image.handle && hBitmap != 0) OS.DeleteObject (hBitmap); |
| if (hMask != 0) OS.DeleteObject (hMask); |
| return memDib; |
| } |
| static long /*int*/ create32bitDIB (long /*int*/ hBitmap, int alpha, byte [] alphaData, int transparentPixel) { |
| BITMAP bm = new BITMAP (); |
| OS.GetObject (hBitmap, BITMAP.sizeof, bm); |
| int imgWidth = bm.bmWidth; |
| int imgHeight = bm.bmHeight; |
| long /*int*/ hDC = OS.GetDC (0); |
| long /*int*/ srcHdc = OS.CreateCompatibleDC (hDC); |
| long /*int*/ oldSrcBitmap = OS.SelectObject (srcHdc, hBitmap); |
| long /*int*/ memHdc = OS.CreateCompatibleDC (hDC); |
| BITMAPINFOHEADER bmiHeader = new BITMAPINFOHEADER (); |
| bmiHeader.biSize = BITMAPINFOHEADER.sizeof; |
| bmiHeader.biWidth = imgWidth; |
| bmiHeader.biHeight = -imgHeight; |
| bmiHeader.biPlanes = 1; |
| bmiHeader.biBitCount = (short)32; |
| bmiHeader.biCompression = OS.BI_RGB; |
| byte [] bmi = new byte [BITMAPINFOHEADER.sizeof]; |
| OS.MoveMemory (bmi, bmiHeader, BITMAPINFOHEADER.sizeof); |
| long /*int*/ [] pBits = new long /*int*/ [1]; |
| long /*int*/ memDib = OS.CreateDIBSection (0, bmi, OS.DIB_RGB_COLORS, pBits, 0, 0); |
| if (memDib == 0) SWT.error (SWT.ERROR_NO_HANDLES); |
| long /*int*/ oldMemBitmap = OS.SelectObject (memHdc, memDib); |
| BITMAP dibBM = new BITMAP (); |
| OS.GetObject (memDib, BITMAP.sizeof, dibBM); |
| int sizeInBytes = dibBM.bmWidthBytes * dibBM.bmHeight; |
| OS.BitBlt (memHdc, 0, 0, imgWidth, imgHeight, srcHdc, 0, 0, OS.SRCCOPY); |
| byte red = 0, green = 0, blue = 0; |
| if (transparentPixel != -1) { |
| if (bm.bmBitsPixel <= 8) { |
| byte [] color = new byte [4]; |
| OS.GetDIBColorTable (srcHdc, transparentPixel, 1, color); |
| blue = color [0]; |
| green = color [1]; |
| red = color [2]; |
| } else { |
| switch (bm.bmBitsPixel) { |
| case 16: |
| blue = (byte)((transparentPixel & 0x1F) << 3); |
| green = (byte)((transparentPixel & 0x3E0) >> 2); |
| red = (byte)((transparentPixel & 0x7C00) >> 7); |
| break; |
| case 24: |
| blue = (byte)((transparentPixel & 0xFF0000) >> 16); |
| green = (byte)((transparentPixel & 0xFF00) >> 8); |
| red = (byte)(transparentPixel & 0xFF); |
| break; |
| case 32: |
| blue = (byte)((transparentPixel & 0xFF000000) >>> 24); |
| green = (byte)((transparentPixel & 0xFF0000) >> 16); |
| red = (byte)((transparentPixel & 0xFF00) >> 8); |
| break; |
| } |
| } |
| } |
| OS.SelectObject (srcHdc, oldSrcBitmap); |
| OS.SelectObject (memHdc, oldMemBitmap); |
| OS.DeleteObject (srcHdc); |
| OS.DeleteObject (memHdc); |
| OS.ReleaseDC (0, hDC); |
| byte [] srcData = new byte [sizeInBytes]; |
| OS.MoveMemory (srcData, pBits [0], sizeInBytes); |
| if (alpha != -1) { |
| for (int y = 0, dp = 0; y < imgHeight; ++y) { |
| for (int x = 0; x < imgWidth; ++x) { |
| srcData [dp + 3] = (byte)alpha; |
| dp += 4; |
| } |
| } |
| } else if (alphaData != null) { |
| for (int y = 0, dp = 0, ap = 0; y < imgHeight; ++y) { |
| for (int x = 0; x < imgWidth; ++x) { |
| srcData [dp + 3] = alphaData [ap++]; |
| dp += 4; |
| } |
| } |
| } else if (transparentPixel != -1) { |
| for (int y = 0, dp = 0; y < imgHeight; ++y) { |
| for (int x = 0; x < imgWidth; ++x) { |
| if (srcData [dp] == blue && srcData [dp + 1] == green && srcData [dp + 2] == red) { |
| srcData [dp + 3] = (byte)0; |
| } else { |
| srcData [dp + 3] = (byte)0xFF; |
| } |
| dp += 4; |
| } |
| } |
| } |
| OS.MoveMemory (pBits [0], srcData, sizeInBytes); |
| return memDib; |
| } |
| |
| static Image createIcon (Image image) { |
| Device device = image.getDevice (); |
| ImageData data = image.getImageData (DPIUtil.getDeviceZoom ()); |
| if (data.alpha == -1 && data.alphaData == null) { |
| ImageData mask = data.getTransparencyMask (); |
| return new Image (device, data, mask); |
| } |
| int width = data.width, height = data.height; |
| long /*int*/ hMask, hBitmap; |
| long /*int*/ hDC = device.internal_new_GC (null); |
| long /*int*/ dstHdc = OS.CreateCompatibleDC (hDC), oldDstBitmap; |
| hBitmap = Display.create32bitDIB (image.handle, data.alpha, data.alphaData, data.transparentPixel); |
| hMask = OS.CreateBitmap (width, height, 1, 1, null); |
| oldDstBitmap = OS.SelectObject (dstHdc, hMask); |
| OS.PatBlt (dstHdc, 0, 0, width, height, OS.BLACKNESS); |
| OS.SelectObject (dstHdc, oldDstBitmap); |
| OS.DeleteDC (dstHdc); |
| device.internal_dispose_GC (hDC, null); |
| ICONINFO info = new ICONINFO (); |
| info.fIcon = true; |
| info.hbmColor = hBitmap; |
| info.hbmMask = hMask; |
| long /*int*/ hIcon = OS.CreateIconIndirect (info); |
| if (hIcon == 0) SWT.error(SWT.ERROR_NO_HANDLES); |
| OS.DeleteObject (hBitmap); |
| OS.DeleteObject (hMask); |
| return Image.win32_new (device, SWT.ICON, hIcon); |
| } |
| |
| static void deregister (Display display) { |
| synchronized (Device.class) { |
| for (int i=0; i<Displays.length; i++) { |
| if (display == Displays [i]) Displays [i] = null; |
| } |
| } |
| } |
| |
| /** |
| * Destroys the device in the operating system and releases |
| * the device's handle. If the device does not have a handle, |
| * this method may do nothing depending on the device. |
| * <p> |
| * This method is called after <code>release</code>. |
| * </p> |
| * @see Device#dispose |
| * @see #release |
| */ |
| @Override |
| protected void destroy () { |
| if (this == Default) Default = null; |
| deregister (this); |
| destroyDisplay (); |
| } |
| |
| void destroyDisplay () { |
| } |
| |
| /** |
| * Causes the <code>run()</code> method of the runnable to |
| * be invoked by the user-interface thread just before the |
| * receiver is disposed. Specifying a <code>null</code> runnable |
| * is ignored. |
| * |
| * @param runnable code to run at dispose time. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void disposeExec (Runnable runnable) { |
| checkDevice (); |
| if (disposeList == null) disposeList = new Runnable [4]; |
| for (int i=0; i<disposeList.length; i++) { |
| if (disposeList [i] == null) { |
| disposeList [i] = runnable; |
| return; |
| } |
| } |
| Runnable [] newDisposeList = new Runnable [disposeList.length + 4]; |
| System.arraycopy (disposeList, 0, newDisposeList, 0, disposeList.length); |
| newDisposeList [disposeList.length] = runnable; |
| disposeList = newDisposeList; |
| } |
| |
| void drawMenuBars () { |
| if (bars == null) return; |
| for (int i=0; i<bars.length; i++) { |
| Menu menu = bars [i]; |
| if (menu != null && !menu.isDisposed ()) menu.update (); |
| } |
| bars = null; |
| } |
| |
| long /*int*/ embeddedProc (long /*int*/ hwnd, long /*int*/ msg, long /*int*/ wParam, long /*int*/ lParam) { |
| switch ((int)/*64*/msg) { |
| case SWT_KEYMSG: { |
| MSG keyMsg = new MSG (); |
| OS.MoveMemory (keyMsg, lParam, MSG.sizeof); |
| OS.TranslateMessage (keyMsg); |
| OS.DispatchMessage (keyMsg); |
| long /*int*/ hHeap = OS.GetProcessHeap (); |
| OS.HeapFree (hHeap, 0, lParam); |
| break; |
| } |
| case SWT_DESTROY: { |
| OS.DestroyWindow (hwnd); |
| if (embeddedCallback != null) embeddedCallback.dispose (); |
| if (getMsgCallback != null) getMsgCallback.dispose (); |
| embeddedCallback = getMsgCallback = null; |
| embeddedProc = getMsgProc = 0; |
| break; |
| } |
| } |
| return OS.DefWindowProc (hwnd, (int)/*64*/msg, wParam, lParam); |
| } |
| |
| /** |
| * Does whatever display specific cleanup is required, and then |
| * uses the code in <code>SWTError.error</code> to handle the error. |
| * |
| * @param code the descriptive error code |
| * |
| * @see SWT#error(int) |
| */ |
| void error (int code) { |
| SWT.error (code); |
| } |
| |
| boolean filterEvent (Event event) { |
| if (filterTable != null) { |
| int type = event.type; |
| sendPreEvent (type); |
| try { |
| filterTable.sendEvent (event); |
| } finally { |
| sendPostEvent (type); |
| } |
| } |
| return false; |
| } |
| |
| boolean filters (int eventType) { |
| if (filterTable == null) return false; |
| return filterTable.hooks (eventType); |
| } |
| |
| boolean filterMessage (MSG msg) { |
| int message = msg.message; |
| if (OS.WM_KEYFIRST <= message && message <= OS.WM_KEYLAST) { |
| Control control = findControl (msg.hwnd); |
| if (control != null) { |
| if (translateAccelerator (msg, control) || translateMnemonic (msg, control) || translateTraversal (msg, control)) { |
| lastAscii = lastKey = 0; |
| lastVirtual = lastNull = lastDead = false; |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| Control findControl (long /*int*/ handle) { |
| if (handle == 0) return null; |
| long /*int*/ hwndOwner = 0; |
| do { |
| Control control = getControl (handle); |
| if (control != null) return control; |
| hwndOwner = OS.GetWindow (handle, OS.GW_OWNER); |
| handle = OS.GetParent (handle); |
| } while (handle != 0 && handle != hwndOwner); |
| return null; |
| } |
| |
| /** |
| * Given the operating system handle for a widget, returns |
| * the instance of the <code>Widget</code> subclass which |
| * represents it in the currently running application, if |
| * such exists, or null if no matching widget can be found. |
| * <p> |
| * <b>IMPORTANT:</b> This method should not be called from |
| * application code. The arguments are platform-specific. |
| * </p> |
| * |
| * @param handle the handle for the widget |
| * @return the SWT widget that the handle represents |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @noreference This method is not intended to be referenced by clients. |
| */ |
| public Widget findWidget (long /*int*/ handle) { |
| checkDevice (); |
| return getControl (handle); |
| } |
| |
| /** |
| * Given the operating system handle for a widget, |
| * and widget-specific id, returns the instance of |
| * the <code>Widget</code> subclass which represents |
| * the handle/id pair in the currently running application, |
| * if such exists, or null if no matching widget can be found. |
| * <p> |
| * <b>IMPORTANT:</b> This method should not be called from |
| * application code. The arguments are platform-specific. |
| * </p> |
| * |
| * @param handle the handle for the widget |
| * @param id the id for the subwidget (usually an item) |
| * @return the SWT widget that the handle/id pair represents |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @noreference This method is not intended to be referenced by clients. |
| * |
| * @since 3.1 |
| */ |
| public Widget findWidget (long /*int*/ handle, long /*int*/ id) { |
| checkDevice (); |
| Control control = getControl (handle); |
| return control != null ? control.findItem (id) : null; |
| } |
| |
| /** |
| * Given a widget and a widget-specific id, returns the |
| * instance of the <code>Widget</code> subclass which represents |
| * the widget/id pair in the currently running application, |
| * if such exists, or null if no matching widget can be found. |
| * |
| * @param widget the widget |
| * @param id the id for the subwidget (usually an item) |
| * @return the SWT subwidget (usually an item) that the widget/id pair represents |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @noreference This method is not intended to be referenced by clients. |
| * |
| * @since 3.3 |
| */ |
| public Widget findWidget (Widget widget, long /*int*/ id) { |
| checkDevice (); |
| if (widget instanceof Control) { |
| return findWidget (((Control) widget).handle, id); |
| } |
| return null; |
| } |
| |
| long /*int*/ foregroundIdleProc (long /*int*/ code, long /*int*/ wParam, long /*int*/ lParam) { |
| if (code >= 0) { |
| if (getMessageCount () != 0) { |
| sendPostExternalEventDispatchEvent (); |
| if (runMessagesInIdle) { |
| if (runMessagesInMessageProc) { |
| OS.PostMessage (hwndMessage, SWT_RUNASYNC, 0, 0); |
| } else { |
| runAsyncMessages (false); |
| } |
| } |
| /* |
| * Bug in Windows. For some reason, input events can be lost |
| * when a message is posted to the queue from a foreground idle |
| * hook. The fix is to detect that there are outstanding input |
| * events and avoid posting the wake event. |
| * |
| * Note that PeekMessage() changes the state of events on the |
| * queue to no longer be considered new. If we peek for input |
| * events and posted messages (PM_QS_INPUT | PM_QS_POSTMESSAGE), |
| * it is possible to cause WaitMessage() to sleep until a new |
| * input event is generated causing sync runnables not to be |
| * executed. |
| */ |
| MSG msg = new MSG(); |
| int flags = OS.PM_NOREMOVE | OS.PM_NOYIELD | OS.PM_QS_INPUT; |
| if (!OS.PeekMessage (msg, 0, 0, 0, flags)) wakeThread (); |
| sendPreExternalEventDispatchEvent (); |
| } |
| } |
| return OS.CallNextHookEx (idleHook, (int)/*64*/code, wParam, lParam); |
| } |
| |
| /** |
| * Returns the display which the given thread is the |
| * user-interface thread for, or null if the given thread |
| * is not a user-interface thread for any display. Specifying |
| * <code>null</code> as the thread will return <code>null</code> |
| * for the display. |
| * |
| * @param thread the user-interface thread |
| * @return the display for the given thread |
| */ |
| public static Display findDisplay (Thread thread) { |
| synchronized (Device.class) { |
| for (int i=0; i<Displays.length; i++) { |
| Display display = Displays [i]; |
| if (display != null && display.thread == thread) { |
| return display; |
| } |
| } |
| return null; |
| } |
| } |
| |
| TouchSource findTouchSource (long /*int*/ touchDevice, Monitor monitor) { |
| if (touchSources == null) touchSources = new TouchSource [4]; |
| int length = touchSources.length; |
| for (int i=0; i<length; i++) { |
| if (touchSources [i] != null && touchSources [i].handle == touchDevice) { |
| return touchSources [i]; |
| } |
| } |
| int index = 0; |
| while (index < length) { |
| if (touchSources [index] == null) break; |
| index++; |
| } |
| if (index == length) { |
| TouchSource [] newTouchSources = new TouchSource [length + 4]; |
| System.arraycopy (touchSources, 0, newTouchSources, 0, length); |
| touchSources = newTouchSources; |
| } |
| return touchSources [index] = new TouchSource (touchDevice, true, monitor.getBounds ()); |
| } |
| |
| /** |
| * 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 (); |
| Control control = findControl (OS.GetActiveWindow ()); |
| return control != null ? control.getShell () : null; |
| } |
| |
| /** |
| * Returns the single instance of the application menu bar, or |
| * <code>null</code> if there is no application menu bar for the platform. |
| * |
| * @return the application menu bar, or <code>null</code> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 3.7 |
| */ |
| public Menu getMenuBar () { |
| checkDevice (); |
| return null; |
| } |
| |
| /** |
| * Returns a rectangle describing the receiver's size and location. Note that |
| * on multi-monitor systems the origin can be negative. |
| * |
| * @return the bounding rectangle |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| @Override |
| public Rectangle getBounds() { |
| checkDevice (); |
| return DPIUtil.autoScaleDown(getBoundsInPixels()); |
| } |
| |
| Rectangle getBoundsInPixels () { |
| checkDevice (); |
| if (OS.GetSystemMetrics (OS.SM_CMONITORS) < 2) { |
| int width = OS.GetSystemMetrics (OS.SM_CXSCREEN); |
| int height = OS.GetSystemMetrics (OS.SM_CYSCREEN); |
| return new Rectangle (0, 0, width, height); |
| } |
| int x = OS.GetSystemMetrics (OS.SM_XVIRTUALSCREEN); |
| int y = OS.GetSystemMetrics (OS.SM_YVIRTUALSCREEN); |
| int width = OS.GetSystemMetrics (OS.SM_CXVIRTUALSCREEN); |
| int height = OS.GetSystemMetrics (OS.SM_CYVIRTUALSCREEN); |
| return new Rectangle (x, y, width, height); |
| } |
| |
| /** |
| * Returns the display which the currently running thread is |
| * the user-interface thread for, or null if the currently |
| * running thread is not a user-interface thread for any display. |
| * |
| * @return the current display |
| */ |
| public static Display getCurrent () { |
| return findDisplay (Thread.currentThread ()); |
| } |
| |
| int getClickCount (int type, int button, long /*int*/ hwnd, long /*int*/ lParam) { |
| switch (type) { |
| case SWT.MouseDown: |
| int doubleClick = OS.GetDoubleClickTime (); |
| if (clickRect == null) clickRect = new RECT (); |
| int deltaTime = Math.abs (lastTime - getLastEventTime ()); |
| POINT pt = new POINT (); |
| OS.POINTSTOPOINT (pt, lParam); |
| if (lastClickHwnd == hwnd && lastButton == button && (deltaTime <= doubleClick) && OS.PtInRect (clickRect, pt)) { |
| clickCount++; |
| } else { |
| clickCount = 1; |
| } |
| //FALL THROUGH |
| case SWT.MouseDoubleClick: |
| lastButton = button; |
| lastClickHwnd = hwnd; |
| lastTime = getLastEventTime (); |
| int xInset = OS.GetSystemMetrics (OS.SM_CXDOUBLECLK) / 2; |
| int yInset = OS.GetSystemMetrics (OS.SM_CYDOUBLECLK) / 2; |
| int x = OS.GET_X_LPARAM (lParam), y = OS.GET_Y_LPARAM (lParam); |
| OS.SetRect (clickRect, x - xInset, y - yInset, x + xInset, y + yInset); |
| //FALL THROUGH |
| case SWT.MouseUp: |
| return clickCount; |
| } |
| return 0; |
| } |
| |
| /** |
| * Returns a rectangle which describes the area of the |
| * receiver which is capable of displaying data. |
| * |
| * @return the client area |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see #getBounds |
| */ |
| @Override |
| public Rectangle getClientArea () { |
| checkDevice (); |
| return DPIUtil.autoScaleDown(getClientAreaInPixels()); |
| } |
| |
| Rectangle getClientAreaInPixels () { |
| checkDevice (); |
| if (OS.GetSystemMetrics (OS.SM_CMONITORS) < 2) { |
| RECT rect = new RECT (); |
| OS.SystemParametersInfo (OS.SPI_GETWORKAREA, 0, rect, 0); |
| int width = rect.right - rect.left; |
| int height = rect.bottom - rect.top; |
| return new Rectangle (rect.left, rect.top, width, height); |
| } |
| int x = OS.GetSystemMetrics (OS.SM_XVIRTUALSCREEN); |
| int y = OS.GetSystemMetrics (OS.SM_YVIRTUALSCREEN); |
| int width = OS.GetSystemMetrics (OS.SM_CXVIRTUALSCREEN); |
| int height = OS.GetSystemMetrics (OS.SM_CYVIRTUALSCREEN); |
| return new Rectangle (x, y, width, height); |
| } |
| |
| Control getControl (long /*int*/ handle) { |
| if (handle == 0) return null; |
| if (lastControl != null && lastHwnd == handle) { |
| return lastControl; |
| } |
| if (lastGetControl != null && lastGetHwnd == handle) { |
| return lastGetControl; |
| } |
| int index = (int)/*64*/OS.GetProp (handle, SWT_OBJECT_INDEX) - 1; |
| if (0 <= index && index < controlTable.length) { |
| Control control = controlTable [index]; |
| /* |
| * Because GWL_USERDATA can be used by native widgets that |
| * do not belong to SWT, it is possible that GWL_USERDATA |
| * could return an index that is in the range of the table, |
| * but was not put there by SWT. Therefore, it is necessary |
| * to check the handle of the control that is in the table |
| * against the handle that provided the GWL_USERDATA. |
| */ |
| if (control != null && control.checkHandle (handle)) { |
| lastGetHwnd = handle; |
| lastGetControl = control; |
| return control; |
| } |
| } |
| 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 or <code>null</code> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public Control getCursorControl () { |
| checkDevice (); |
| POINT pt = new POINT (); |
| if (!OS.GetCursorPos (pt)) return null; |
| return findControl (OS.WindowFromPoint (pt)); |
| } |
| |
| /** |
| * 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 (); |
| return DPIUtil.autoScaleDown(getCursorLocationInPixels()); |
| } |
| |
| Point getCursorLocationInPixels () { |
| POINT pt = new POINT (); |
| OS.GetCursorPos (pt); |
| return new Point (pt.x, pt.y); |
| } |
| |
| /** |
| * Returns an array containing the recommended cursor sizes. |
| * |
| * @return the array of cursor sizes |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 3.0 |
| */ |
| public Point [] getCursorSizes () { |
| checkDevice (); |
| return new Point [] { |
| new Point (OS.GetSystemMetrics (OS.SM_CXCURSOR), OS.GetSystemMetrics (OS.SM_CYCURSOR))}; |
| } |
| |
| /** |
| * Returns the default display. One is created (making the |
| * thread that invokes this method its user-interface thread) |
| * if it did not already exist. |
| * |
| * @return the default display |
| */ |
| public static Display getDefault () { |
| synchronized (Device.class) { |
| if (Default == null) Default = new Display (); |
| return Default; |
| } |
| } |
| |
| /** |
| * @since 3.108 |
| */ |
| @Override |
| protected int getDeviceZoom() { |
| /* |
| * Win8.1 and above we should pick zoom for the primary monitor which always |
| * reflects the latest OS zoom value, for more details refer bug 537273. |
| */ |
| if (OS.WIN32_VERSION >= OS.VERSION (6, 3)) { |
| return getPrimaryMonitor().getZoom(); |
| } |
| /* Otherwise return Windows zoom level, as set during session login. */ |
| return super.getDeviceZoom(); |
| } |
| |
| static boolean isValidClass (Class<?> clazz) { |
| String name = clazz.getName (); |
| int index = name.lastIndexOf ('.'); |
| return name.substring (0, index + 1).equals (PACKAGE_PREFIX); |
| } |
| |
| /** |
| * Returns the application defined property of the receiver |
| * with the specified name, or null if it has not been set. |
| * <p> |
| * Applications may have associated arbitrary objects with the |
| * receiver in this fashion. If the objects stored in the |
| * properties need to be notified when the display is disposed |
| * of, it is the application's responsibility to provide a |
| * <code>disposeExec()</code> handler which does so. |
| * </p> |
| * |
| * @param key the name of the property |
| * @return the value of the property or null if it has not been set |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the key is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see #setData(String, Object) |
| * @see #disposeExec(Runnable) |
| */ |
| public Object getData (String key) { |
| checkDevice (); |
| if (key == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (key.equals (RUN_MESSAGES_IN_IDLE_KEY)) { |
| return new Boolean (runMessagesInIdle); |
| } |
| if (key.equals (RUN_MESSAGES_IN_MESSAGE_PROC_KEY)) { |
| return new Boolean (runMessagesInMessageProc); |
| } |
| if (key.equals (USE_OWNDC_KEY)) { |
| return new Boolean (useOwnDC); |
| } |
| if (key.equals (ACCEL_KEY_HIT)) { |
| return new Boolean (accelKeyHit); |
| } |
| if (keys == null) return null; |
| for (int i=0; i<keys.length; i++) { |
| if (keys [i].equals (key)) return values [i]; |
| } |
| return null; |
| } |
| |
| /** |
| * Returns the application defined, display specific data |
| * associated with the receiver, or null if it has not been |
| * set. The <em>display specific data</em> is a single, |
| * unnamed field that is stored with every display. |
| * <p> |
| * Applications may put arbitrary objects in this field. If |
| * the object stored in the display specific data needs to |
| * be notified when the display is disposed of, it is the |
| * application's responsibility to provide a |
| * <code>disposeExec()</code> handler which does so. |
| * </p> |
| * |
| * @return the display specific data |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see #setData(Object) |
| * @see #disposeExec(Runnable) |
| */ |
| public Object getData () { |
| checkDevice (); |
| return data; |
| } |
| |
| /** |
| * Returns the button dismissal alignment, one of <code>LEFT</code> or <code>RIGHT</code>. |
| * The button dismissal alignment is the ordering that should be used when positioning the |
| * default dismissal button for a dialog. For example, in a dialog that contains an OK and |
| * CANCEL button, on platforms where the button dismissal alignment is <code>LEFT</code>, the |
| * button ordering should be OK/CANCEL. When button dismissal alignment is <code>RIGHT</code>, |
| * the button ordering should be CANCEL/OK. |
| * |
| * @return the button dismissal order |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 2.1 |
| */ |
| public int getDismissalAlignment () { |
| checkDevice (); |
| return SWT.LEFT; |
| } |
| |
| |
| /** |
| * Returns the longest duration, in milliseconds, between |
| * two mouse button clicks that will be considered a |
| * <em>double click</em> by the underlying operating system. |
| * |
| * @return the double click time |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public int getDoubleClickTime () { |
| checkDevice (); |
| return OS.GetDoubleClickTime (); |
| } |
| |
| /** |
| * Returns the control which currently has keyboard focus, |
| * or null if keyboard events are not currently going to |
| * any of the controls built by the currently running |
| * application. |
| * |
| * @return the focus control or <code>null</code> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public Control getFocusControl () { |
| checkDevice (); |
| if (focusControl != null && !focusControl.isDisposed ()) { |
| return focusControl; |
| } |
| return _getFocusControl (); |
| } |
| |
| String getFontName (LOGFONT logFont) { |
| char[] chars = logFont.lfFaceName; |
| int index = 0; |
| while (index < chars.length) { |
| if (chars [index] == 0) break; |
| index++; |
| } |
| return new String (chars, 0, index); |
| } |
| |
| /** |
| * 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 (); |
| HIGHCONTRAST pvParam = new HIGHCONTRAST (); |
| pvParam.cbSize = HIGHCONTRAST.sizeof; |
| OS.SystemParametersInfo (OS.SPI_GETHIGHCONTRAST, 0, pvParam, 0); |
| return (pvParam.dwFlags & OS.HCF_HIGHCONTRASTON) != 0; |
| } |
| |
| /** |
| * Returns the maximum allowed depth of icons on this display, in bits per pixel. |
| * On some platforms, this may be different than the actual depth of the display. |
| * |
| * @return the maximum icon depth |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see Device#getDepth |
| */ |
| public int getIconDepth () { |
| checkDevice (); |
| if (getDepth () >= 24) return 32; |
| |
| /* Use the character encoding for the default locale */ |
| TCHAR buffer1 = new TCHAR (0, "Control Panel\\Desktop\\WindowMetrics", true); //$NON-NLS-1$ |
| |
| long /*int*/ [] phkResult = new long /*int*/ [1]; |
| int result = OS.RegOpenKeyEx (OS.HKEY_CURRENT_USER, buffer1, 0, OS.KEY_READ, phkResult); |
| if (result != 0) return 4; |
| int depth = 4; |
| int [] lpcbData = new int [1]; |
| |
| /* Use the character encoding for the default locale */ |
| TCHAR buffer2 = new TCHAR (0, "Shell Icon BPP", true); //$NON-NLS-1$ |
| result = OS.RegQueryValueEx (phkResult [0], buffer2, 0, null, (TCHAR) null, lpcbData); |
| if (result == 0) { |
| TCHAR lpData = new TCHAR (0, lpcbData [0] / TCHAR.sizeof); |
| result = OS.RegQueryValueEx (phkResult [0], buffer2, 0, null, lpData, lpcbData); |
| if (result == 0) { |
| try { |
| depth = Integer.parseInt (lpData.toString (0, lpData.strlen ())); |
| } catch (NumberFormatException e) {} |
| } |
| } |
| OS.RegCloseKey (phkResult [0]); |
| return depth; |
| } |
| |
| /** |
| * Returns an array containing the recommended icon sizes. |
| * |
| * @return the array of icon sizes |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see Decorations#setImages(Image[]) |
| * |
| * @since 3.0 |
| */ |
| public Point [] getIconSizes () { |
| checkDevice (); |
| return new Point [] { |
| new Point (OS.GetSystemMetrics (OS.SM_CXSMICON), OS.GetSystemMetrics (OS.SM_CYSMICON)), |
| new Point (OS.GetSystemMetrics (OS.SM_CXICON), OS.GetSystemMetrics (OS.SM_CYICON)), |
| }; |
| } |
| |
| ImageList getImageList (int style, int width, int height) { |
| if (imageList == null) imageList = new ImageList [4]; |
| |
| int i = 0; |
| int length = imageList.length; |
| while (i < length) { |
| ImageList list = imageList [i]; |
| if (list == null) break; |
| Point size = list.getImageSize(); |
| if (size.x == width && size.y == height) { |
| if (list.getStyle () == style) { |
| list.addRef(); |
| return list; |
| } |
| } |
| i++; |
| } |
| |
| if (i == length) { |
| ImageList [] newList = new ImageList [length + 4]; |
| System.arraycopy (imageList, 0, newList, 0, length); |
| imageList = newList; |
| } |
| |
| ImageList list = new ImageList (style, width, height); |
| imageList [i] = list; |
| list.addRef(); |
| return list; |
| } |
| |
| ImageList getImageListToolBar (int style, int width, int height) { |
| if (toolImageList == null) toolImageList = new ImageList [4]; |
| |
| int i = 0; |
| int length = toolImageList.length; |
| while (i < length) { |
| ImageList list = toolImageList [i]; |
| if (list == null) break; |
| Point size = list.getImageSize(); |
| if (size.x == width && size.y == height) { |
| if (list.getStyle () == style) { |
| list.addRef(); |
| return list; |
| } |
| } |
| i++; |
| } |
| |
| if (i == length) { |
| ImageList [] newList = new ImageList [length + 4]; |
| System.arraycopy (toolImageList, 0, newList, 0, length); |
| toolImageList = newList; |
| } |
| |
| ImageList list = new ImageList (style, width, height); |
| toolImageList [i] = list; |
| list.addRef(); |
| return list; |
| } |
| |
| ImageList getImageListToolBarDisabled (int style, int width, int height) { |
| if (toolDisabledImageList == null) toolDisabledImageList = new ImageList [4]; |
| |
| int i = 0; |
| int length = toolDisabledImageList.length; |
| while (i < length) { |
| ImageList list = toolDisabledImageList [i]; |
| if (list == null) break; |
| Point size = list.getImageSize(); |
| if (size.x == width && size.y == height) { |
| if (list.getStyle () == style) { |
| list.addRef(); |
| return list; |
| } |
| } |
| i++; |
| } |
| |
| if (i == length) { |
| ImageList [] newList = new ImageList [length + 4]; |
| System.arraycopy (toolDisabledImageList, 0, newList, 0, length); |
| toolDisabledImageList = newList; |
| } |
| |
| ImageList list = new ImageList (style, width, height); |
| toolDisabledImageList [i] = list; |
| list.addRef(); |
| return list; |
| } |
| |
| ImageList getImageListToolBarHot (int style, int width, int height) { |
| if (toolHotImageList == null) toolHotImageList = new ImageList [4]; |
| |
| int i = 0; |
| int length = toolHotImageList.length; |
| while (i < length) { |
| ImageList list = toolHotImageList [i]; |
| if (list == null) break; |
| Point size = list.getImageSize(); |
| if (size.x == width && size.y == height) { |
| if (list.getStyle () == style) { |
| list.addRef(); |
| return list; |
| } |
| } |
| i++; |
| } |
| |
| if (i == length) { |
| ImageList [] newList = new ImageList [length + 4]; |
| System.arraycopy (toolHotImageList, 0, newList, 0, length); |
| toolHotImageList = newList; |
| } |
| |
| ImageList list = new ImageList (style, width, height); |
| toolHotImageList [i] = list; |
| list.addRef(); |
| return list; |
| } |
| |
| int getLastEventTime () { |
| return OS.GetMessageTime (); |
| } |
| |
| MenuItem getMenuItem (int id) { |
| if (items == null) return null; |
| id = id - ID_START; |
| if (0 <= id && id < items.length) return items [id]; |
| return null; |
| } |
| |
| int getMessageCount () { |
| return synchronizer.getMessageCount (); |
| } |
| |
| |
| Shell getModalShell () { |
| if (modalShells == null) return null; |
| int index = modalShells.length; |
| while (--index >= 0) { |
| Shell shell = modalShells [index]; |
| if (shell != null) return shell; |
| } |
| return null; |
| } |
| |
| Dialog getModalDialog () { |
| return modalDialog; |
| } |
| |
| Monitor getMonitor (long /*int*/ hmonitor) { |
| MONITORINFO lpmi = new MONITORINFO (); |
| lpmi.cbSize = MONITORINFO.sizeof; |
| OS.GetMonitorInfo (hmonitor, lpmi); |
| Monitor monitor = new Monitor (); |
| monitor.handle = hmonitor; |
| Rectangle boundsInPixels = new Rectangle (lpmi.rcMonitor_left, lpmi.rcMonitor_top, lpmi.rcMonitor_right - lpmi.rcMonitor_left,lpmi.rcMonitor_bottom - lpmi.rcMonitor_top); |
| monitor.setBounds (DPIUtil.autoScaleDown (boundsInPixels)); |
| Rectangle clientAreaInPixels = new Rectangle (lpmi.rcWork_left, lpmi.rcWork_top, lpmi.rcWork_right - lpmi.rcWork_left, lpmi.rcWork_bottom - lpmi.rcWork_top); |
| monitor.setClientArea (DPIUtil.autoScaleDown (clientAreaInPixels)); |
| if (OS.WIN32_VERSION >= OS.VERSION (6, 3)) { |
| int [] dpiX = new int[1]; |
| int [] dpiY = new int[1]; |
| int result = OS.GetDpiForMonitor (monitor.handle, OS.MDT_EFFECTIVE_DPI, dpiX, dpiY); |
| result = (result == OS.S_OK) ? DPIUtil.mapDPIToZoom (dpiX[0]) : 100; |
| /* |
| * Always return true monitor zoom value as fetched from native, else will lead |
| * to scaling issue on OS Win8.1 and above, for more details refer bug 537614. |
| */ |
| monitor.zoom = result; |
| } else { |
| monitor.zoom = getDeviceZoom (); |
| } |
| return monitor; |
| } |
| |
| /** |
| * Returns an array of monitors attached to the device. |
| * |
| * @return the array of monitors |
| * |
| * @since 3.0 |
| */ |
| public Monitor [] getMonitors () { |
| checkDevice (); |
| monitors = new Monitor [4]; |
| Callback callback = new Callback (this, "monitorEnumProc", 4); //$NON-NLS-1$ |
| long /*int*/ lpfnEnum = callback.getAddress (); |
| if (lpfnEnum == 0) error (SWT.ERROR_NO_MORE_CALLBACKS); |
| OS.EnumDisplayMonitors (0, null, lpfnEnum, 0); |
| callback.dispose (); |
| Monitor [] result = new Monitor [monitorCount]; |
| System.arraycopy (monitors, 0, result, 0, monitorCount); |
| monitors = null; |
| monitorCount = 0; |
| return result; |
| } |
| |
| long /*int*/ getMsgProc (long /*int*/ code, long /*int*/ wParam, long /*int*/ lParam) { |
| if (embeddedHwnd == 0) { |
| long /*int*/ hInstance = OS.GetModuleHandle (null); |
| embeddedHwnd = OS.CreateWindowEx (0, |
| windowClass, |
| null, |
| OS.WS_OVERLAPPED, |
| 0, 0, 0, 0, |
| 0, |
| 0, |
| hInstance, |
| null); |
| embeddedCallback = new Callback (this, "embeddedProc", 4); //$NON-NLS-1$ |
| embeddedProc = embeddedCallback.getAddress (); |
| if (embeddedProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS); |
| OS.SetWindowLongPtr (embeddedHwnd, OS.GWLP_WNDPROC, embeddedProc); |
| } |
| if (code >= 0 && (wParam & OS.PM_REMOVE) != 0) { |
| MSG msg = new MSG (); |
| OS.MoveMemory (msg, lParam, MSG.sizeof); |
| switch (msg.message) { |
| case OS.WM_KEYDOWN: |
| case OS.WM_KEYUP: |
| case OS.WM_SYSKEYDOWN: |
| case OS.WM_SYSKEYUP: { |
| Control control = findControl (msg.hwnd); |
| if (control != null) { |
| long /*int*/ hHeap = OS.GetProcessHeap (); |
| long /*int*/ keyMsg = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, MSG.sizeof); |
| OS.MoveMemory (keyMsg, msg, MSG.sizeof); |
| OS.PostMessage (hwndMessage, SWT_KEYMSG, wParam, keyMsg); |
| switch ((int)/*64*/msg.wParam) { |
| case OS.VK_SHIFT: |
| case OS.VK_MENU: |
| case OS.VK_CONTROL: |
| case OS.VK_CAPITAL: |
| case OS.VK_NUMLOCK: |
| case OS.VK_SCROLL: |
| break; |
| default: |
| msg.message = OS.WM_NULL; |
| OS.MoveMemory (lParam, msg, MSG.sizeof); |
| } |
| } |
| } |
| } |
| } |
| return OS.CallNextHookEx (msgHook, (int)/*64*/code, wParam, lParam); |
| } |
| |
| /** |
| * Returns the primary monitor for that device. |
| * |
| * @return the primary monitor |
| * |
| * @since 3.0 |
| */ |
| public Monitor getPrimaryMonitor () { |
| checkDevice (); |
| long /*int*/ hmonitor = OS.MonitorFromWindow (0, OS.MONITOR_DEFAULTTOPRIMARY); |
| return getMonitor (hmonitor); |
| } |
| |
| /** |
| * Returns a (possibly empty) array containing all shells which have |
| * not been disposed and have the receiver as their display. |
| * |
| * @return the receiver's shells |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public Shell [] getShells () { |
| checkDevice (); |
| int index = 0; |
| Shell [] result = new Shell [16]; |
| for (int i = 0; i < controlTable.length; i++) { |
| Control control = controlTable [i]; |
| if (control != null && control instanceof Shell) { |
| int j = 0; |
| while (j < index) { |
| if (result [j] == control) break; |
| j++; |
| } |
| if (j == index) { |
| if (index == result.length) { |
| Shell [] newResult = new Shell [index + 16]; |
| System.arraycopy (result, 0, newResult, 0, index); |
| result = newResult; |
| } |
| result [index++] = (Shell) control; |
| } |
| } |
| } |
| if (index == result.length) return result; |
| Shell [] newResult = new Shell [index]; |
| System.arraycopy (result, 0, newResult, 0, index); |
| return newResult; |
| } |
| |
| /** |
| * Gets the synchronizer used by the display. |
| * |
| * @return the receiver's synchronizer |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 3.4 |
| */ |
| public Synchronizer getSynchronizer () { |
| checkDevice (); |
| return synchronizer; |
| } |
| |
| /** |
| * Returns the thread that has invoked <code>syncExec</code> |
| * or null if no such runnable is currently being invoked by |
| * the user-interface thread. |
| * <p> |
| * Note: If a runnable invoked by asyncExec is currently |
| * running, this method will return null. |
| * </p> |
| * |
| * @return the receiver's sync-interface thread |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public Thread getSyncThread () { |
| synchronized (Device.class) { |
| if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED); |
| return synchronizer.syncThread; |
| } |
| } |
| |
| /** |
| * Returns the matching standard color for the given |
| * constant, which should be one of the color constants |
| * specified in class <code>SWT</code>. Any value other |
| * than one of the SWT color constants which is passed |
| * in will result in the color black. This color should |
| * not be free'd because it was allocated by the system, |
| * not the application. |
| * |
| * @param id the color constant |
| * @return the matching color |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see SWT |
| */ |
| @Override |
| public Color getSystemColor (int id) { |
| checkDevice (); |
| int pixel = 0x00000000; |
| switch (id) { |
| case SWT.COLOR_WIDGET_DARK_SHADOW: pixel = OS.GetSysColor (OS.COLOR_3DDKSHADOW); break; |
| case SWT.COLOR_WIDGET_NORMAL_SHADOW: pixel = OS.GetSysColor (OS.COLOR_3DSHADOW); break; |
| case SWT.COLOR_WIDGET_LIGHT_SHADOW: pixel = OS.GetSysColor (OS.COLOR_3DLIGHT); break; |
| case SWT.COLOR_WIDGET_HIGHLIGHT_SHADOW: pixel = OS.GetSysColor (OS.COLOR_3DHIGHLIGHT); break; |
| case SWT.COLOR_WIDGET_BACKGROUND: pixel = OS.GetSysColor (OS.COLOR_3DFACE); break; |
| case SWT.COLOR_WIDGET_BORDER: pixel = OS.GetSysColor (OS.COLOR_WINDOWFRAME); break; |
| case SWT.COLOR_WIDGET_FOREGROUND: |
| case SWT.COLOR_LIST_FOREGROUND: pixel = OS.GetSysColor (OS.COLOR_WINDOWTEXT); break; |
| case SWT.COLOR_LIST_BACKGROUND: pixel = OS.GetSysColor (OS.COLOR_WINDOW); break; |
| case SWT.COLOR_LIST_SELECTION: pixel = OS.GetSysColor (OS.COLOR_HIGHLIGHT); break; |
| case SWT.COLOR_LIST_SELECTION_TEXT: pixel = OS.GetSysColor (OS.COLOR_HIGHLIGHTTEXT);break; |
| case SWT.COLOR_LINK_FOREGROUND: pixel = OS.GetSysColor (OS.COLOR_HOTLIGHT);break; |
| case SWT.COLOR_INFO_FOREGROUND: pixel = OS.GetSysColor (OS.COLOR_INFOTEXT); break; |
| case SWT.COLOR_INFO_BACKGROUND: pixel = OS.GetSysColor (OS.COLOR_INFOBK); break; |
| case SWT.COLOR_TITLE_FOREGROUND: pixel = OS.GetSysColor (OS.COLOR_CAPTIONTEXT); break; |
| case SWT.COLOR_TITLE_BACKGROUND: pixel = OS.GetSysColor (OS.COLOR_ACTIVECAPTION); break; |
| case SWT.COLOR_TITLE_BACKGROUND_GRADIENT: |
| pixel = OS.GetSysColor (OS.COLOR_GRADIENTACTIVECAPTION); |
| if (pixel == 0) pixel = OS.GetSysColor (OS.COLOR_ACTIVECAPTION); |
| break; |
| case SWT.COLOR_TITLE_INACTIVE_FOREGROUND: pixel = OS.GetSysColor (OS.COLOR_INACTIVECAPTIONTEXT); break; |
| case SWT.COLOR_TITLE_INACTIVE_BACKGROUND: pixel = OS.GetSysColor (OS.COLOR_INACTIVECAPTION); break; |
| case SWT.COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT: |
| pixel = OS.GetSysColor (OS.COLOR_GRADIENTINACTIVECAPTION); |
| if (pixel == 0) pixel = OS.GetSysColor (OS.COLOR_INACTIVECAPTION); |
| break; |
| default: |
| return super.getSystemColor (id); |
| } |
| return Color.win32_new (this, pixel); |
| } |
| |
| /** |
| * 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 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> |
| */ |
| @Override |
| public Font getSystemFont () { |
| checkDevice (); |
| if (systemFont != null) return systemFont; |
| long /*int*/ hFont = 0; |
| NONCLIENTMETRICS info = new NONCLIENTMETRICS (); |
| info.cbSize = NONCLIENTMETRICS.sizeof; |
| if (OS.SystemParametersInfo (OS.SPI_GETNONCLIENTMETRICS, 0, info, 0)) { |
| LOGFONT logFont = info.lfMessageFont; |
| hFont = OS.CreateFontIndirect (logFont); |
| lfSystemFont = hFont != 0 ? logFont : null; |
| } |
| if (hFont == 0) hFont = OS.GetStockObject (OS.DEFAULT_GUI_FONT); |
| if (hFont == 0) hFont = OS.GetStockObject (OS.SYSTEM_FONT); |
| return systemFont = Font.win32_new (this, hFont); |
| } |
| |
| /** |
| * Returns the matching standard platform image for the given |
| * constant, which should be one of the icon constants |
| * specified in class <code>SWT</code>. This image should |
| * not be free'd because it was allocated by the system, |
| * not the application. A value of <code>null</code> will |
| * be returned either if the supplied constant is not an |
| * SWT icon constant or if the platform does not define an |
| * image that corresponds to the constant. |
| * |
| * @param id the SWT icon constant |
| * @return the corresponding image or <code>null</code> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see SWT#ICON_ERROR |
| * @see SWT#ICON_INFORMATION |
| * @see SWT#ICON_QUESTION |
| * @see SWT#ICON_WARNING |
| * @see SWT#ICON_WORKING |
| * |
| * @since 3.0 |
| */ |
| public Image getSystemImage (int id) { |
| checkDevice (); |
| switch (id) { |
| case SWT.ICON_ERROR: { |
| if (errorImage != null) return errorImage; |
| long /*int*/ hIcon = OS.LoadImage (0, OS.OIC_HAND, OS.IMAGE_ICON, 0, 0, OS.LR_SHARED); |
| return errorImage = Image.win32_new (this, SWT.ICON, hIcon); |
| } |
| case SWT.ICON_WORKING: |
| case SWT.ICON_INFORMATION: { |
| if (infoImage != null) return infoImage; |
| long /*int*/ hIcon = OS.LoadImage (0, OS.OIC_INFORMATION, OS.IMAGE_ICON, 0, 0, OS.LR_SHARED); |
| return infoImage = Image.win32_new (this, SWT.ICON, hIcon); |
| } |
| case SWT.ICON_QUESTION: { |
| if (questionImage != null) return questionImage; |
| long /*int*/ hIcon = OS.LoadImage (0, OS.OIC_QUES, OS.IMAGE_ICON, 0, 0, OS.LR_SHARED); |
| return questionImage = Image.win32_new (this, SWT.ICON, hIcon); |
| } |
| case SWT.ICON_WARNING: { |
| if (warningIcon != null) return warningIcon; |
| long /*int*/ hIcon = OS.LoadImage (0, OS.OIC_BANG, OS.IMAGE_ICON, 0, 0, OS.LR_SHARED); |
| return warningIcon = Image.win32_new (this, SWT.ICON, hIcon); |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Returns the single instance of the system-provided menu for the application, or |
| * <code>null</code> on platforms where no menu is provided for the application. |
| * |
| * @return the system menu, or <code>null</code> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 3.7 |
| */ |
| public Menu getSystemMenu () { |
| checkDevice(); |
| return null; |
| } |
| |
| /** |
| * Returns the single instance of the system taskBar or null |
| * when there is no system taskBar available for the platform. |
| * |
| * @return the system taskBar or <code>null</code> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 3.6 |
| */ |
| public TaskBar getSystemTaskBar () { |
| checkDevice (); |
| if (taskBar != null) return taskBar; |
| if (OS.WIN32_VERSION >= OS.VERSION (6, 1)) { |
| taskBar = new TaskBar (this, SWT.NONE); |
| } |
| return taskBar; |
| } |
| |
| /** |
| * Returns the single instance of the system tray or null |
| * when there is no system tray available for the platform. |
| * |
| * @return the system tray or <code>null</code> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 3.0 |
| */ |
| public Tray getSystemTray () { |
| checkDevice (); |
| if (tray == null) tray = new Tray (this, SWT.NONE); |
| return tray; |
| } |
| |
| /** |
| * Returns the user-interface thread for the receiver. |
| * |
| * @return the receiver's user-interface thread |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public Thread getThread () { |
| synchronized (Device.class) { |
| if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED); |
| return thread; |
| } |
| } |
| |
| /** |
| * Returns a boolean indicating whether a touch-aware input device is |
| * attached to the system and is ready for use. |
| * |
| * @return <code>true</code> if a touch-aware input device is detected, or <code>false</code> otherwise |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 3.7 |
| */ |
| public boolean getTouchEnabled () { |
| checkDevice(); |
| int value = OS.GetSystemMetrics (OS.SM_DIGITIZER); |
| return (value & (OS.NID_READY | OS.NID_MULTI_INPUT)) == (OS.NID_READY | OS.NID_MULTI_INPUT); |
| } |
| |
| long /*int*/ hButtonTheme () { |
| if (hButtonTheme != 0) return hButtonTheme; |
| return hButtonTheme = OS.OpenThemeData (hwndMessage, BUTTON); |
| } |
| |
| long /*int*/ hEditTheme () { |
| if (hEditTheme != 0) return hEditTheme; |
| return hEditTheme = OS.OpenThemeData (hwndMessage, EDIT); |
| } |
| |
| long /*int*/ hExplorerBarTheme () { |
| if (hExplorerBarTheme != 0) return hExplorerBarTheme; |
| return hExplorerBarTheme = OS.OpenThemeData (hwndMessage, EXPLORERBAR); |
| } |
| |
| long /*int*/ hScrollBarTheme () { |
| if (hScrollBarTheme != 0) return hScrollBarTheme; |
| return hScrollBarTheme = OS.OpenThemeData (hwndMessage, SCROLLBAR); |
| } |
| |
| long /*int*/ hTabTheme () { |
| if (hTabTheme != 0) return hTabTheme; |
| return hTabTheme = OS.OpenThemeData (hwndMessage, TAB); |
| } |
| |
| /** |
| * Invokes platform specific functionality to allocate a new GC handle. |
| * <p> |
| * <b>IMPORTANT:</b> This method is <em>not</em> part of the public |
| * API for <code>Display</code>. It is marked public only so that it |
| * can be shared within the packages provided by SWT. It is not |
| * available on all platforms, and should never be called from |
| * application code. |
| * </p> |
| * |
| * @param data the platform specific GC data |
| * @return the platform specific GC handle |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * @exception SWTError <ul> |
| * <li>ERROR_NO_HANDLES if a handle could not be obtained for gc creation</li> |
| * </ul> |
| * |
| * @noreference This method is not intended to be referenced by clients. |
| */ |
| @Override |
| public long /*int*/ internal_new_GC (GCData data) { |
| if (isDisposed()) error(SWT.ERROR_DEVICE_DISPOSED); |
| long /*int*/ hDC = OS.GetDC (0); |
| if (hDC == 0) error (SWT.ERROR_NO_HANDLES); |
| if (data != null) { |
| int mask = SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT; |
| if ((data.style & mask) != 0) { |
| data.layout = (data.style & SWT.RIGHT_TO_LEFT) != 0 ? OS.LAYOUT_RTL : 0; |
| } else { |
| data.style |= SWT.LEFT_TO_RIGHT; |
| } |
| data.device = this; |
| data.font = getSystemFont (); |
| } |
| return hDC; |
| } |
| |
| /** |
| * Initializes any internal resources needed by the |
| * device. |
| * <p> |
| * This method is called after <code>create</code>. |
| * </p> |
| * |
| * @see #create |
| */ |
| @Override |
| protected void init () { |
| super.init (); |
| DPIUtil.setDeviceZoom (getDeviceZoom ()); |
| |
| /* Set the application user model ID, if APP_NAME is non Default */ |
| char [] appName = null; |
| if (APP_NAME != null && !"SWT".equalsIgnoreCase (APP_NAME)) { |
| if (OS.WIN32_VERSION >= OS.VERSION (6, 1)) { |
| int length = APP_NAME.length (); |
| appName = new char [length + 1]; |
| APP_NAME.getChars (0, length, appName, 0); |
| long /*int*/ [] appID = new long /*int*/ [1]; |
| if (OS.GetCurrentProcessExplicitAppUserModelID(appID) != 0) { |
| OS.SetCurrentProcessExplicitAppUserModelID (appName); |
| } |
| if (appID[0] != 0) OS.CoTaskMemFree(appID[0]); |
| } |
| } |
| |
| /* Create the callbacks */ |
| windowCallback = new Callback (this, "windowProc", 4); //$NON-NLS-1$ |
| windowProc = windowCallback.getAddress (); |
| if (windowProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS); |
| |
| /* Remember the current thread id */ |
| threadId = OS.GetCurrentThreadId (); |
| |
| /* Use the character encoding for the default locale */ |
| windowClass = new TCHAR (0, WindowName + WindowClassCount, true); |
| windowShadowClass = new TCHAR (0, WindowShadowName + WindowClassCount, true); |
| windowOwnDCClass = new TCHAR (0, WindowOwnDCName + WindowClassCount, true); |
| WindowClassCount++; |
| |
| /* Register the SWT window class */ |
| long /*int*/ hInstance = OS.GetModuleHandle (null); |
| WNDCLASS lpWndClass = new WNDCLASS (); |
| lpWndClass.hInstance = hInstance; |
| lpWndClass.lpfnWndProc = windowProc; |
| lpWndClass.style = OS.CS_DBLCLKS; |
| lpWndClass.hCursor = OS.LoadCursor (0, OS.IDC_ARROW); |
| lpWndClass.hIcon = OS.LoadIcon (0, OS.IDI_APPLICATION); |
| OS.RegisterClass (windowClass, lpWndClass); |
| |
| /* Register the SWT drop shadow window class */ |
| lpWndClass.style |= OS.CS_DROPSHADOW; |
| OS.RegisterClass (windowShadowClass, lpWndClass); |
| |
| /* Register the CS_OWNDC window class */ |
| lpWndClass.style |= OS.CS_OWNDC; |
| OS.RegisterClass (windowOwnDCClass, lpWndClass); |
| |
| /* Create the message only HWND */ |
| hwndMessage = OS.CreateWindowEx (0, |
| windowClass, |
| null, |
| OS.WS_OVERLAPPED, |
| 0, 0, 0, 0, |
| 0, |
| 0, |
| hInstance, |
| null); |
| String title = "SWT_Window_"+APP_NAME; |
| OS.SetWindowText(hwndMessage, new TCHAR(0, title, true)); |
| messageCallback = new Callback (this, "messageProc", 4); //$NON-NLS-1$ |
| messageProc = messageCallback.getAddress (); |
| if (messageProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS); |
| OS.SetWindowLongPtr (hwndMessage, OS.GWLP_WNDPROC, messageProc); |
| |
| /* Create the filter hook */ |
| msgFilterCallback = new Callback (this, "msgFilterProc", 3); //$NON-NLS-1$ |
| msgFilterProc = msgFilterCallback.getAddress (); |
| if (msgFilterProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS); |
| filterHook = OS.SetWindowsHookEx (OS.WH_MSGFILTER, msgFilterProc, 0, threadId); |
| |
| /* Create the idle hook */ |
| foregroundIdleCallback = new Callback (this, "foregroundIdleProc", 3); //$NON-NLS-1$ |
| foregroundIdleProc = foregroundIdleCallback.getAddress (); |
| if (foregroundIdleProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS); |
| idleHook = OS.SetWindowsHookEx (OS.WH_FOREGROUNDIDLE, foregroundIdleProc, 0, threadId); |
| |
| /* Register window messages */ |
| TASKBARCREATED = OS.RegisterWindowMessage (new TCHAR (0, "TaskbarCreated", true)); //$NON-NLS-1$ |
| TASKBARBUTTONCREATED = OS.RegisterWindowMessage (new TCHAR (0, "TaskbarButtonCreated", true)); //$NON-NLS-1$ |
| SWT_RESTORECARET = OS.RegisterWindowMessage (new TCHAR (0, "SWT_RESTORECARET", true)); //$NON-NLS-1$ |
| DI_GETDRAGIMAGE = OS.RegisterWindowMessage (new TCHAR (0, "ShellGetDragImage", true)); //$NON-NLS-1$ |
| SWT_OPENDOC = OS.RegisterWindowMessage(new TCHAR (0, "SWT_OPENDOC", true)); //$NON-NLS-1$ |
| |
| /* Initialize OLE */ |
| OS.OleInitialize (0); |
| |
| if (appName != null) { |
| /* Delete any old jump list set for the ID */ |
| long /*int*/ [] ppv = new long /*int*/ [1]; |
| int hr = OS.CoCreateInstance (TaskBar.CLSID_DestinationList, 0, OS.CLSCTX_INPROC_SERVER, TaskBar.IID_ICustomDestinationList, ppv); |
| if (hr == OS.S_OK) { |
| /*ICustomDestinationList::DeleteList*/ |
| OS.VtblCall (10, ppv [0], appName); |
| /*IUnknown::Release*/ |
| OS.VtblCall (2, ppv [0]); |
| } |
| } |
| |
| /* Initialize buffered painting */ |
| OS.BufferedPaintInit (); |
| |
| /* Initialize the Widget Table */ |
| indexTable = new int [GROW_SIZE]; |
| controlTable = new Control [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 |
| * |
| * @noreference This method is not intended to be referenced by clients. |
| */ |
| @Override |
| public void internal_dispose_GC (long /*int*/ hDC, GCData data) { |
| OS.ReleaseDC (0, hDC); |
| } |
| |
| boolean isXMouseActive () { |
| /* |
| * NOTE: X-Mouse is active when bit 1 of the UserPreferencesMask is set. |
| */ |
| boolean xMouseActive = false; |
| TCHAR key = new TCHAR (0, "Control Panel\\Desktop", true); //$NON-NLS-1$ |
| long /*int*/ [] phKey = new long /*int*/ [1]; |
| int result = OS.RegOpenKeyEx (OS.HKEY_CURRENT_USER, key, 0, OS.KEY_READ, phKey); |
| if (result == 0) { |
| TCHAR lpValueName = new TCHAR (0, "UserPreferencesMask", true); //$NON-NLS-1$ |
| int [] lpcbData = new int [] {4}, lpData = new int [1]; |
| result = OS.RegQueryValueEx (phKey [0], lpValueName, 0, null, lpData, lpcbData); |
| if (result == 0) xMouseActive = (lpData [0] & 0x01) != 0; |
| OS.RegCloseKey (phKey [0]); |
| } |
| return xMouseActive; |
| } |
| |
| boolean isValidThread () { |
| return thread == Thread.currentThread (); |
| } |
| |
| /** |
| * Maps a point from one coordinate system to another. |
| * When the control is null, coordinates are mapped to |
| * the display. |
| * <p> |
| * NOTE: On right-to-left platforms where the coordinate |
| * systems are mirrored, special care needs to be taken |
| * when mapping coordinates from one control to another |
| * to ensure the result is correctly mirrored. |
| * |
| * Mapping a point that is the origin of a rectangle and |
| * then adding the width and height is not equivalent to |
| * mapping the rectangle. When one control is mirrored |
| * and the other is not, adding the width and height to a |
| * point that was mapped causes the rectangle to extend |
| * in the wrong direction. Mapping the entire rectangle |
| * instead of just one point causes both the origin and |
| * the corner of the rectangle to be mapped. |
| * </p> |
| * |
| * @param from the source <code>Control</code> or <code>null</code> |
| * @param to the destination <code>Control</code> or <code>null</code> |
| * @param point to be mapped |
| * @return point with mapped coordinates |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the point is null</li> |
| * <li>ERROR_INVALID_ARGUMENT - if the Control from or the Control to have been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 2.1.2 |
| */ |
| public Point map (Control from, Control to, Point point) { |
| checkDevice (); |
| if (point == null) error (SWT.ERROR_NULL_ARGUMENT); |
| point = DPIUtil.autoScaleUp(point); |
| return DPIUtil.autoScaleDown(mapInPixels(from, to, point)); |
| } |
| |
| Point mapInPixels (Control from, Control to, Point point) { |
| return mapInPixels (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 (); |
| x = DPIUtil.autoScaleUp(x); |
| y = DPIUtil.autoScaleUp(y); |
| return DPIUtil.autoScaleDown(mapInPixels(from, to, x, y)); |
| } |
| |
| Point mapInPixels (Control from, Control to, int x, int y) { |
| if (from != null && from.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (to != null && to.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (from == to) return new Point (x, y); |
| long /*int*/ hwndFrom = from != null ? from.handle : 0; |
| long /*int*/ hwndTo = to != null ? to.handle : 0; |
| POINT point = new POINT (); |
| point.x = x; |
| point.y = y; |
| OS.MapWindowPoints (hwndFrom, hwndTo, point, 1); |
| return new Point (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 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); |
| rectangle = DPIUtil.autoScaleUp(rectangle); |
| return DPIUtil.autoScaleDown(mapInPixels(from, to, rectangle)); |
| } |
| |
| Rectangle mapInPixels (Control from, Control to, Rectangle rectangle) { |
| return mapInPixels (from, to, rectangle.x, rectangle.y, rectangle.width, rectangle.height); |
| } |
| |
| /** |
| * Maps a point from one coordinate system to another. |
| * When the control is null, coordinates are mapped to |
| * the display. |
| * <p> |
| * NOTE: On right-to-left platforms where the coordinate |
| * systems are mirrored, special care needs to be taken |
| * when mapping coordinates from one control to another |
| * to ensure the result is correctly mirrored. |
| * |
| * Mapping a point that is the origin of a rectangle and |
| * then adding the width and height is not equivalent to |
| * mapping the rectangle. When one control is mirrored |
| * and the other is not, adding the width and height to a |
| * point that was mapped causes the rectangle to extend |
| * in the wrong direction. Mapping the entire rectangle |
| * instead of just one point causes both the origin and |
| * the corner of the rectangle to be mapped. |
| * </p> |
| * |
| * @param from the source <code>Control</code> or <code>null</code> |
| * @param to the destination <code>Control</code> or <code>null</code> |
| * @param x coordinates to be mapped |
| * @param y coordinates to be mapped |
| * @param width coordinates to be mapped |
| * @param height coordinates to be mapped |
| * @return rectangle with mapped coordinates |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the Control from or the Control to have been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 2.1.2 |
| */ |
| public Rectangle map (Control from, Control to, int x, int y, int width, int height) { |
| checkDevice (); |
| x = DPIUtil.autoScaleUp(x); |
| y = DPIUtil.autoScaleUp(y); |
| width = DPIUtil.autoScaleUp(width); |
| height = DPIUtil.autoScaleUp(height); |
| return DPIUtil.autoScaleDown(mapInPixels(from, to, x, y, width, height)); |
| } |
| |
| Rectangle mapInPixels (Control from, Control to, int x, int y, int width, int height) { |
| if (from != null && from.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (to != null && to.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (from == to) return new Rectangle (x, y, width, height); |
| long /*int*/ hwndFrom = from != null ? from.handle : 0; |
| long /*int*/ hwndTo = to != null ? to.handle : 0; |
| RECT rect = new RECT (); |
| rect.left = x; |
| rect.top = y; |
| rect.right = x + width; |
| rect.bottom = y + height; |
| OS.MapWindowPoints (hwndFrom, hwndTo, rect, 2); |
| return new Rectangle (rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top); |
| } |
| |
| long /*int*/ messageProc (long /*int*/ hwnd, long /*int*/ msg, long /*int*/ wParam, long /*int*/ lParam) { |
| switch ((int)/*64*/msg) { |
| case SWT_RUNASYNC: { |
| if (runMessagesInIdle) runAsyncMessages (false); |
| break; |
| } |
| case SWT_KEYMSG: { |
| boolean consumed = false; |
| MSG keyMsg = new MSG (); |
| OS.MoveMemory (keyMsg, lParam, MSG.sizeof); |
| Control control = findControl (keyMsg.hwnd); |
| if (control != null) { |
| /* |
| * Feature in Windows. When the user types an accent key such |
| * as ^ in order to get an accented character on a German keyboard, |
| * calling TranslateMessage(), ToUnicode() or ToAscii() consumes |
| * the key. This means that a subsequent call to TranslateMessage() |
| * will see a regular key rather than the accented key. The fix |
| * is to use MapVirtualKey() and VkKeyScan () to detect an accent |
| * and avoid calls to TranslateMessage(). |
| */ |
| boolean accentKey = false; |
| switch (keyMsg.message) { |
| case OS.WM_KEYDOWN: |
| case OS.WM_SYSKEYDOWN: { |
| switch ((int)/*64*/keyMsg.wParam) { |
| case OS.VK_SHIFT: |
| case OS.VK_MENU: |
| case OS.VK_CONTROL: |
| case OS.VK_CAPITAL: |
| case OS.VK_NUMLOCK: |
| case OS.VK_SCROLL: |
| break; |
| default: { |
| int mapKey = OS.MapVirtualKey ((int)/*64*/keyMsg.wParam, 2); |
| if (mapKey != 0) { |
| accentKey = (mapKey & 0x80000000) != 0; |
| if (!accentKey) { |
| for (int i=0; i<ACCENTS.length; i++) { |
| int value = OS.VkKeyScan (ACCENTS [i]); |
| if (value != -1 && (value & 0xFF) == keyMsg.wParam) { |
| int state = value >> 8; |
| if ((OS.GetKeyState (OS.VK_SHIFT) < 0) == ((state & 0x1) != 0) && |
| (OS.GetKeyState (OS.VK_CONTROL) < 0) == ((state & 0x2) != 0) && |
| (OS.GetKeyState (OS.VK_MENU) < 0) == ((state & 0x4) != 0)) { |
| if ((state & 0x7) != 0) accentKey = true; |
| break; |
| } |
| } |
| } |
| } |
| } |
| break; |
| } |
| } |
| break; |
| } |
| } |
| if (!accentKey && !ignoreNextKey) { |
| keyMsg.hwnd = control.handle; |
| int flags = OS.PM_REMOVE | OS.PM_NOYIELD | OS.PM_QS_INPUT | OS.PM_QS_POSTMESSAGE; |
| do { |
| if (!(consumed |= filterMessage (keyMsg))) { |
| OS.TranslateMessage (keyMsg); |
| consumed |= OS.DispatchMessage (keyMsg) == 1; |
| } |
| } while (OS.PeekMessage (keyMsg, keyMsg.hwnd, OS.WM_KEYFIRST, OS.WM_KEYLAST, flags)); |
| } |
| switch (keyMsg.message) { |
| case OS.WM_KEYDOWN: |
| case OS.WM_SYSKEYDOWN: { |
| switch ((int)/*64*/keyMsg.wParam) { |
| case OS.VK_SHIFT: |
| case OS.VK_MENU: |
| case OS.VK_CONTROL: |
| case OS.VK_CAPITAL: |
| case OS.VK_NUMLOCK: |
| case OS.VK_SCROLL: |
| break; |
| default: { |
| ignoreNextKey = accentKey; |
| break; |
| } |
| } |
| } |
| } |
| } |
| switch ((int)/*64*/keyMsg.wParam) { |
| case OS.VK_SHIFT: |
| case OS.VK_MENU: |
| case OS.VK_CONTROL: |
| case OS.VK_CAPITAL: |
| case OS.VK_NUMLOCK: |
| case OS.VK_SCROLL: |
| consumed = true; |
| } |
| if (consumed) { |
| long /*int*/ hHeap = OS.GetProcessHeap (); |
| OS.HeapFree (hHeap, 0, lParam); |
| } else { |
| OS.PostMessage (embeddedHwnd, SWT_KEYMSG, wParam, lParam); |
| } |
| return 0; |
| } |
| case SWT_TRAYICONMSG: { |
| if (tray != null) { |
| TrayItem [] items = tray.items; |
| for (int i=0; i<items.length; i++) { |
| TrayItem item = items [i]; |
| if (item != null && item.id == wParam) { |
| return item.messageProc (hwnd, (int)/*64*/msg, wParam, lParam); |
| } |
| } |
| } |
| return 0; |
| } |
| case OS.WM_ACTIVATEAPP: { |
| /* |
| * Feature in Windows. When multiple shells are |
| * disabled and one of the shells has an enabled |
| * dialog child and the user selects a disabled |
| * shell that does not have the enabled dialog |
| * child using the Task bar, Windows brings the |
| * disabled shell to the front. As soon as the |
| * user clicks on the disabled shell, the enabled |
| * dialog child comes to the front. This behavior |
| * is unspecified and seems strange. Normally, a |
| * disabled shell is frozen on the screen and the |
| * user cannot change the z-order by clicking with |
| * the mouse. The fix is to look for WM_ACTIVATEAPP |
| * and force the enabled dialog child to the front. |
| * This is typically what the user is expecting. |
| * |
| * NOTE: If the modal shell is disabled for any |
| * reason, it should not be brought to the front. |
| */ |
| if (wParam != 0) { |
| if (!isXMouseActive ()) { |
| long /*int*/ hwndActive = OS.GetActiveWindow (); |
| if (hwndActive != 0 && OS.IsWindowEnabled (hwndActive)) break; |
| Shell modal = modalDialog != null ? modalDialog.parent : getModalShell (); |
| if (modal != null && !modal.isDisposed ()) { |
| long /*int*/ hwndModal = modal.handle; |
| if (OS.IsWindowEnabled (hwndModal)) { |
| modal.bringToTop (); |
| if (modal.isDisposed ()) break; |
| } |
| long /*int*/ hwndPopup = OS.GetLastActivePopup (hwndModal); |
| if (hwndPopup != 0 && hwndPopup != modal.handle) { |
| if (getControl (hwndPopup) == null) { |
| if (OS.IsWindowEnabled (hwndPopup)) { |
| OS.SetActiveWindow (hwndPopup); |
| } |
| } |
| } |
| } |
| } |
| } |
| break; |
| } |
| case OS.WM_ENDSESSION: { |
| if (wParam != 0) { |
| dispose (); |
| /* |
| * When the session is ending, no SWT program can continue |
| * to run. In order to avoid running code after the display |
| * has been disposed, exit from Java. |
| */ |
| /* This code is intentionally commented */ |
| // System.exit (0); |
| } |
| break; |
| } |
| case OS.WM_QUERYENDSESSION: { |
| Event event = new Event (); |
| sendEvent (SWT.Close, event); |
| if (!event.doit) return 0; |
| break; |
| } |
| case OS.WM_DWMCOLORIZATIONCOLORCHANGED: |
| case OS.WM_SETTINGCHANGE: { |
| /* Set the initial timer or push the time out period forward */ |
| OS.SetTimer (hwndMessage, SETTINGS_ID, SETTINGS_DELAY, 0); |
| break; |
| } |
| case OS.WM_THEMECHANGED: { |
| if (hButtonTheme != 0) OS.CloseThemeData (hButtonTheme); |
| if (hEditTheme != 0) OS.CloseThemeData (hEditTheme); |
| if (hExplorerBarTheme != 0) OS.CloseThemeData (hExplorerBarTheme); |
| if (hScrollBarTheme != 0) OS.CloseThemeData (hScrollBarTheme); |
| if (hTabTheme != 0) OS.CloseThemeData (hTabTheme); |
| hButtonTheme = hEditTheme = hExplorerBarTheme = hScrollBarTheme = hTabTheme = 0; |
| break; |
| } |
| case OS.WM_TIMER: { |
| if (wParam == SETTINGS_ID) { |
| OS.KillTimer (hwndMessage, SETTINGS_ID); |
| runSettings (); |
| } else { |
| runTimer (wParam); |
| } |
| break; |
| } |
| default: { |
| if ((int)/*64*/msg == TASKBARCREATED) { |
| if (tray != null) { |
| TrayItem [] items = tray.items; |
| for (int i=0; i<items.length; i++) { |
| TrayItem item = items [i]; |
| if (item != null) item.recreate (); |
| } |
| } |
| } |
| if ((int)/*64*/msg == SWT_OPENDOC) { |
| String filename = getSharedData((int)/*64*/wParam, (int)/*64*/lParam); |
| if (filename != null) { |
| if (filename.startsWith (TASKBAR_EVENT)) { |
| String text = filename.substring (TASKBAR_EVENT.length ()); |
| int id = Integer.parseInt (text); |
| MenuItem item = getMenuItem (id); |
| if (item != null) { |
| item.sendSelectionEvent (SWT.Selection); |
| } |
| } else { |
| Event event = new Event (); |
| event.text = filename; |
| try { |
| new URI (filename); |
| sendEvent (SWT.OpenUrl, event); |
| } catch (URISyntaxException e) { |
| sendEvent (SWT.OpenDocument, event); |
| } |
| } |
| wakeThread (); |
| } |
| } |
| } |
| } |
| return OS.DefWindowProc (hwnd, (int)/*64*/msg, wParam, lParam); |
| } |
| |
| String getSharedData(int pid, int handle) { |
| long /*int*/ [] mapHandle = new long /*int*/ [1]; |
| if (pid == OS.GetCurrentProcessId()) { |
| mapHandle[0] = handle; |
| } else { |
| long /*int*/ processHandle = OS.OpenProcess(OS.PROCESS_VM_READ|OS.PROCESS_DUP_HANDLE, false, pid); |
| if (processHandle == 0) return null; |
| OS.DuplicateHandle(processHandle, handle, OS.GetCurrentProcess(), mapHandle, OS.DUPLICATE_SAME_ACCESS, false, OS.DUPLICATE_SAME_ACCESS); |
| OS.CloseHandle(processHandle); |
| } |
| |
| long /*int*/ sharedData = OS.MapViewOfFile(mapHandle[0], OS.FILE_MAP_READ, 0, 0, 0); |
| if (sharedData == 0) return null; |
| int length = OS.wcslen (sharedData); |
| TCHAR buffer = new TCHAR (0, length); |
| int byteCount = buffer.length () * TCHAR.sizeof; |
| OS.MoveMemory (buffer, sharedData, byteCount); |
| String result = buffer.toString (0, length); |
| OS.UnmapViewOfFile(sharedData); |
| if (handle != mapHandle[0]) { |
| OS.CloseHandle(mapHandle[0]); |
| } |
| return result; |
| } |
| |
| long /*int*/ monitorEnumProc (long /*int*/ hmonitor, long /*int*/ hdc, long /*int*/ lprcMonitor, long /*int*/ dwData) { |
| if (monitorCount >= monitors.length) { |
| Monitor[] newMonitors = new Monitor [monitors.length + 4]; |
| System.arraycopy (monitors, 0, newMonitors, 0, monitors.length); |
| monitors = newMonitors; |
| } |
| monitors [monitorCount++] = getMonitor (hmonitor); |
| return 1; |
| } |
| |
| long /*int*/ msgFilterProc (long /*int*/ code, long /*int*/ wParam, long /*int*/ lParam) { |
| switch ((int)/*64*/code) { |
| case OS.MSGF_COMMCTRL_BEGINDRAG: { |
| if (!runDragDrop && !dragCancelled) { |
| OS.MoveMemory (hookMsg, lParam, MSG.sizeof); |
| if (hookMsg.message == OS.WM_MOUSEMOVE) { |
| dragCancelled = true; |
| OS.SendMessage (hookMsg.hwnd, OS.WM_CANCELMODE, 0, 0); |
| } |
| } |
| break; |
| } |
| /* |
| * Feature in Windows. For some reason, when the user clicks |
| * a table or tree, the Windows hook WH_MSGFILTER is sent when |
| * an input event from a dialog box, message box, menu, or scroll |
| * bar did not occur, causing async messages to run at the wrong |
| * time. The fix is to check the message filter code. |
| */ |
| case OS.MSGF_DIALOGBOX: |
| case OS.MSGF_MAINLOOP: |
| case OS.MSGF_MENU: |
| case OS.MSGF_MOVE: |
| case OS.MSGF_MESSAGEBOX: |
| case OS.MSGF_NEXTWINDOW: |
| case OS.MSGF_SCROLLBAR: |
| case OS.MSGF_SIZE: { |
| OS.MoveMemory (hookMsg, lParam, MSG.sizeof); |
| if (hookMsg.message == OS.WM_NULL) { |
| MSG msg = new MSG (); |
| int flags = OS.PM_NOREMOVE | OS.PM_NOYIELD | OS.PM_QS_INPUT | OS.PM_QS_POSTMESSAGE; |
| if (!OS.PeekMessage (msg, 0, 0, 0, flags)) { |
| if (runAsyncMessages (false)) wakeThread (); |
| } |
| } |
| break; |
| } |
| } |
| return OS.CallNextHookEx (filterHook, (int)/*64*/code, wParam, lParam); |
| } |
| |
| int numpadKey (int key) { |
| switch (key) { |
| case OS.VK_NUMPAD0: return '0'; |
| case OS.VK_NUMPAD1: return '1'; |
| case OS.VK_NUMPAD2: return '2'; |
| case OS.VK_NUMPAD3: return '3'; |
| case OS.VK_NUMPAD4: return '4'; |
| case OS.VK_NUMPAD5: return '5'; |
| case OS.VK_NUMPAD6: return '6'; |
| case OS.VK_NUMPAD7: return '7'; |
| case OS.VK_NUMPAD8: return '8'; |
| case OS.VK_NUMPAD9: return '9'; |
| case OS.VK_MULTIPLY: return '*'; |
| case OS.VK_ADD: return '+'; |
| case OS.VK_SEPARATOR: return '\0'; |
| case OS.VK_SUBTRACT: return '-'; |
| case OS.VK_DECIMAL: return '.'; |
| case OS.VK_DIVIDE: return '/'; |
| } |
| return 0; |
| } |
| |
| /** |
| * Generate a low level system event. |
| * |
| * <code>post</code> is used to generate low level keyboard |
| * and mouse events. The intent is to enable automated UI |
| * testing by simulating the input from the user. Most |
| * SWT applications should never need to call this method. |
| * <p> |
| * Note that this operation can fail when the operating system |
| * fails to generate the event for any reason. For example, |
| * this can happen when there is no such key or mouse button |
| * or when the system event queue is full. |
| * </p> |
| * <p> |
| * <b>Event Types:</b> |
| * <p>KeyDown, KeyUp |
| * <p>The following fields in the <code>Event</code> apply: |
| * <ul> |
| * <li>(in) type KeyDown or KeyUp</li> |
| * <p> Either one of: |
| * <li>(in) character a character that corresponds to a keyboard key</li> |
| * <li>(in) keyCode the key code of the key that was typed, |
| * as defined by the key code constants in class <code>SWT</code></li> |
| * <p> Optional (on some platforms): </p> |
| * <li>(in) stateMask the state of the keyboard modifier, |
| * as defined by the key code constants in class <code>SWT</code> |
| * </li> |
| * </ul> |
| * <p>MouseDown, MouseUp</p> |
| * <p>The following fields in the <code>Event</code> apply: |
| * <ul> |
| * <li>(in) type MouseDown or MouseUp |
| * <li>(in) button the button that is pressed or released |
| * </ul> |
| * <p>MouseMove</p> |
| * <p>The following fields in the <code>Event</code> apply: |
| * <ul> |
| * <li>(in) type MouseMove |
| * <li>(in) x the x coordinate to move the mouse pointer to in screen coordinates |
| * <li>(in) y the y coordinate to move the mouse pointer to in screen coordinates |
| * </ul> |
| * <p>MouseWheel</p> |
| * <p>The following fields in the <code>Event</code> apply: |
| * <ul> |
| * <li>(in) type MouseWheel |
| * <li>(in) detail either SWT.SCROLL_LINE or SWT.SCROLL_PAGE |
| * <li>(in) count the number of lines or pages to scroll |
| * </ul> |
| * </dl> |
| * |
| * @param event the event to be generated |
| * |
| * @return true if the event was generated or false otherwise |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the event is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 3.0 |
| * |
| */ |
| public boolean post (Event event) { |
| synchronized (Device.class) { |
| if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED); |
| if (event == null) error (SWT.ERROR_NULL_ARGUMENT); |
| int type = event.type; |
| switch (type){ |
| case SWT.KeyDown: |
| case SWT.KeyUp: { |
| KEYBDINPUT inputs = new KEYBDINPUT (); |
| inputs.wVk = (short) untranslateKey (event.keyCode); |
| if (inputs.wVk == 0) { |
| char key = event.character; |
| switch (key) { |
| case SWT.BS: inputs.wVk = (short) OS.VK_BACK; break; |
| case SWT.CR: inputs.wVk = (short) OS.VK_RETURN; break; |
| case SWT.DEL: inputs.wVk = (short) OS.VK_DELETE; break; |
| case SWT.ESC: inputs.wVk = (short) OS.VK_ESCAPE; break; |
| case SWT.TAB: inputs.wVk = (short) OS.VK_TAB; break; |
| /* |
| * Since there is no LF key on the keyboard, do not attempt |
| * to map LF to CR or attempt to post an LF key. |
| */ |
| // case SWT.LF: inputs.wVk = (short) OS.VK_RETURN; break; |
| case SWT.LF: return false; |
| default: { |
| inputs.wVk = OS.VkKeyScan ((short) key); |
| if (inputs.wVk == -1) return false; |
| inputs.wVk &= 0xFF; |
| } |
| } |
| } |
| inputs.dwFlags = type == SWT.KeyUp ? OS.KEYEVENTF_KEYUP : 0; |
| switch (inputs.wVk) { |
| case OS.VK_INSERT: |
| case OS.VK_DELETE: |
| case OS.VK_HOME: |
| case OS.VK_END: |
| case OS.VK_PRIOR: |
| case OS.VK_NEXT: |
| case OS.VK_UP: |
| case OS.VK_DOWN: |
| case OS.VK_LEFT: |
| case OS.VK_RIGHT: |
| case OS.VK_NUMLOCK: |
| case OS.VK_SNAPSHOT: |
| case OS.VK_CANCEL: |
| case OS.VK_DIVIDE: |
| inputs.dwFlags |= OS.KEYEVENTF_EXTENDEDKEY; |
| } |
| long /*int*/ hHeap = OS.GetProcessHeap (); |
| long /*int*/ pInputs = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, INPUT.sizeof); |
| OS.MoveMemory(pInputs, new int[] {OS.INPUT_KEYBOARD}, 4); |
| //TODO - DWORD type of INPUT structure aligned to 8 bytes on 64 bit |
| OS.MoveMemory (pInputs + C.PTR_SIZEOF, inputs, KEYBDINPUT.sizeof); |
| boolean result = OS.SendInput (1, pInputs, INPUT.sizeof) != 0; |
| OS.HeapFree (hHeap, 0, pInputs); |
| return result; |
| } |
| case SWT.MouseDown: |
| case SWT.MouseMove: |
| case SWT.MouseUp: |
| case SWT.MouseWheel: { |
| MOUSEINPUT inputs = new MOUSEINPUT (); |
| if (type == SWT.MouseMove){ |
| inputs.dwFlags = OS.MOUSEEVENTF_MOVE | OS.MOUSEEVENTF_ABSOLUTE | OS.MOUSEEVENTF_VIRTUALDESK; |
| int x = OS.GetSystemMetrics (OS.SM_XVIRTUALSCREEN); |
| int y = OS.GetSystemMetrics (OS.SM_YVIRTUALSCREEN); |
| int width = OS.GetSystemMetrics (OS.SM_CXVIRTUALSCREEN); |
| int height = OS.GetSystemMetrics (OS.SM_CYVIRTUALSCREEN); |
| Point loc = event.getLocationInPixels(); |
| inputs.dx = ((loc.x - x) * 65535 + width - 2) / (width - 1); |
| inputs.dy = ((loc.y - y) * 65535 + height - 2) / (height - 1); |
| } else { |
| if (type == SWT.MouseWheel) { |
| inputs.dwFlags = OS.MOUSEEVENTF_WHEEL; |
| switch (event.detail) { |
| case SWT.SCROLL_PAGE: |
| inputs.mouseData = event.count * OS.WHEEL_DELTA; |
| break; |
| case SWT.SCROLL_LINE: |
| int [] value = new int [1]; |
| OS.SystemParametersInfo (OS.SPI_GETWHEELSCROLLLINES, 0, value, 0); |
| inputs.mouseData = event.count * OS.WHEEL_DELTA / value [0]; |
| break; |
| default: return false; |
| } |
| } else { |
| switch (event.button) { |
| case 1: inputs.dwFlags = type == SWT.MouseDown ? OS.MOUSEEVENTF_LEFTDOWN : OS.MOUSEEVENTF_LEFTUP; break; |
| case 2: inputs.dwFlags = type == SWT.MouseDown ? OS.MOUSEEVENTF_MIDDLEDOWN : OS.MOUSEEVENTF_MIDDLEUP; break; |
| case 3: inputs.dwFlags = type == SWT.MouseDown ? OS.MOUSEEVENTF_RIGHTDOWN : OS.MOUSEEVENTF_RIGHTUP; break; |
| case 4: { |
| inputs.dwFlags = type == SWT.MouseDown ? OS.MOUSEEVENTF_XDOWN : OS.MOUSEEVENTF_XUP; |
| inputs.mouseData = OS.XBUTTON1; |
| break; |
| } |
| case 5: { |
| inputs.dwFlags = type == SWT.MouseDown ? OS.MOUSEEVENTF_XDOWN : OS.MOUSEEVENTF_XUP; |
| inputs.mouseData = OS.XBUTTON2; |
| break; |
| } |
| default: return false; |
| } |
| } |
| } |
| long /*int*/ hHeap = OS.GetProcessHeap (); |
| long /*int*/ pInputs = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, INPUT.sizeof); |
| OS.MoveMemory(pInputs, new int[] {OS.INPUT_MOUSE}, 4); |
| //TODO - DWORD type of INPUT structure aligned to 8 bytes on 64 bit |
| OS.MoveMemory (pInputs + C.PTR_SIZEOF, inputs, MOUSEINPUT.sizeof); |
| boolean result = OS.SendInput (1, pInputs, INPUT.sizeof) != 0; |
| OS.HeapFree (hHeap, 0, pInputs); |
| return result; |
| } |
| } |
| return false; |
| } |
| } |
| |
| void postEvent (Event event) { |
| /* |
| * Place the event at the end of the event queue. |
| * This code is always called in the Display's |
| * thread so it must be re-enterant but does not |
| * need to be synchronized. |
| */ |
| if (eventQueue == null) eventQueue = new Event [4]; |
| int index = 0; |
| int length = eventQueue.length; |
| while (index < length) { |
| if (eventQueue [index] == null) break; |
| index++; |
| } |
| if (index == length) { |
| Event [] newQueue = new Event [length + 4]; |
| System.arraycopy (eventQueue, 0, newQueue, 0, length); |
| eventQueue = newQueue; |
| } |
| eventQueue [index] = event; |
| } |
| |
| /** |
| * Reads an event from the operating system's event queue, |
| * dispatches it appropriately, and returns <code>true</code> |
| * if there is potentially more work to do, or <code>false</code> |
| * if the caller can sleep until another event is placed on |
| * the event queue. |
| * <p> |
| * In addition to checking the system event queue, this method also |
| * checks if any inter-thread messages (created by <code>syncExec()</code> |
| * or <code>asyncExec()</code>) are waiting to be processed, and if |
| * so handles them before returning. |
| * </p> |
| * |
| * @return <code>false</code> if the caller can sleep upon return from this method |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_FAILED_EXEC - if an exception occurred while running an inter-thread message</li> |
| * </ul> |
| * |
| * @see #sleep |
| * @see #wake |
| */ |
| public boolean readAndDispatch () { |
| checkDevice (); |
| lpStartupInfo = null; |
| drawMenuBars (); |
| runSkin (); |
| runDeferredLayouts (); |
| runPopups (); |
| if (OS.PeekMessage (msg, 0, 0, 0, OS.PM_REMOVE)) { |
| if (!filterMessage (msg)) { |
| OS.TranslateMessage (msg); |
| OS.DispatchMessage (msg); |
| } |
| runDeferredEvents (); |
| return true; |
| } |
| return isDisposed () || runAsyncMessages (false); |
| } |
| |
| static void register (Display display) { |
| synchronized (Device.class) { |
| for (int i=0; i<Displays.length; i++) { |
| if (Displays [i] == null) { |
| Displays [i] = display; |
| return; |
| } |
| } |
| Display [] newDisplays = new Display [Displays.length + 4]; |
| System.arraycopy (Displays, 0, newDisplays, 0, Displays.length); |
| newDisplays [Displays.length] = display; |
| Displays = newDisplays; |
| } |
| } |
| |
| /** |
| * Releases any internal resources back to the operating |
| * system and clears all fields except the device handle. |
| * <p> |
| * Disposes all shells which are currently open on the display. |
| * After this method has been invoked, all related related shells |
| * will answer <code>true</code> when sent the message |
| * <code>isDisposed()</code>. |
| * </p><p> |
| * When a device is destroyed, resources that were acquired |
| * on behalf of the programmer need to be returned to the |
| * operating system. For example, if the device allocated a |
| * font to be used as the system font, this font would be |
| * freed in <code>release</code>. Also,to assist the garbage |
| * collector and minimize the amount of memory that is not |
| * reclaimed when the programmer keeps a reference to a |
| * disposed device, all fields except the handle are zero'd. |
| * The handle is needed by <code>destroy</code>. |
| * </p> |
| * This method is called before <code>destroy</code>. |
| * |
| * @see Device#dispose |
| * @see #destroy |
| */ |
| @Override |
| 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; |
| if (taskBar != null) taskBar.dispose (); |
| taskBar = null; |
| while (readAndDispatch ()) {} |
| if (disposeList != null) { |
| for (int i=0; i<disposeList.length; i++) { |
| Runnable next = disposeList [i]; |
| if (next != null) { |
| try { |
| next.run (); |
| } catch (RuntimeException exception) { |
| runtimeExceptionHandler.accept (exception); |
| } catch (Error error) { |
| errorHandler.accept (error); |
| } |
| } |
| } |
| } |
| disposeList = null; |
| synchronizer.releaseSynchronizer (); |
| synchronizer = null; |
| releaseDisplay (); |
| super.release (); |
| } |
| |
| void releaseDisplay () { |
| if (embeddedHwnd != 0) { |
| OS.PostMessage (embeddedHwnd, SWT_DESTROY, 0, 0); |
| } |
| |
| /* Release XP Themes */ |
| if (hButtonTheme != 0) OS.CloseThemeData (hButtonTheme); |
| if (hEditTheme != 0) OS.CloseThemeData (hEditTheme); |
| if (hExplorerBarTheme != 0) OS.CloseThemeData (hExplorerBarTheme); |
| if (hScrollBarTheme != 0) OS.CloseThemeData (hScrollBarTheme); |
| if (hTabTheme != 0) OS.CloseThemeData (hTabTheme); |
| hButtonTheme = hEditTheme = hExplorerBarTheme = hScrollBarTheme = hTabTheme = 0; |
| |
| /* Unhook the message hook */ |
| if (msgHook != 0) OS.UnhookWindowsHookEx (msgHook); |
| msgHook = 0; |
| |
| /* Unhook the filter hook */ |
| if (filterHook != 0) OS.UnhookWindowsHookEx (filterHook); |
| filterHook = 0; |
| msgFilterCallback.dispose (); |
| msgFilterCallback = null; |
| msgFilterProc = 0; |
| |
| /* Unhook the idle hook */ |
| if (idleHook != 0) OS.UnhookWindowsHookEx (idleHook); |
| idleHook = 0; |
| foregroundIdleCallback.dispose (); |
| foregroundIdleCallback = null; |
| foregroundIdleProc = 0; |
| |
| /* Stop the settings timer */ |
| OS.KillTimer (hwndMessage, SETTINGS_ID); |
| |
| /* Destroy the message only HWND */ |
| if (hwndMessage != 0) OS.DestroyWindow (hwndMessage); |
| hwndMessage = 0; |
| messageCallback.dispose (); |
| messageCallback = null; |
| messageProc = 0; |
| |
| /* Unregister the SWT window class */ |
| long /*int*/ hHeap = OS.GetProcessHeap (); |
| long /*int*/ hInstance = OS.GetModuleHandle (null); |
| OS.UnregisterClass (windowClass, hInstance); |
| |
| /* Unregister the SWT drop shadow and CS_OWNDC window class */ |
| OS.UnregisterClass (windowShadowClass, hInstance); |
| OS.UnregisterClass (windowOwnDCClass, hInstance); |
| windowClass = windowShadowClass = windowOwnDCClass = null; |
| windowCallback.dispose (); |
| windowCallback = null; |
| windowProc = 0; |
| |
| /* Release the System fonts */ |
| if (systemFont != null) systemFont.dispose (); |
| systemFont = null; |
| lfSystemFont = null; |
| |
| /* Release the System Images */ |
| if (errorImage != null) errorImage.dispose (); |
| if (infoImage != null) infoImage.dispose (); |
| if (questionImage != null) questionImage.dispose (); |
| if (warningIcon != null) warningIcon.dispose (); |
| errorImage = infoImage = questionImage = warningIcon = null; |
| |
| /* Release the System Cursors */ |
| for (int i = 0; i < cursors.length; i++) { |
| if (cursors [i] != null) cursors [i].dispose (); |
| } |
| cursors = null; |
| |
| /* Release Acquired Resources */ |
| if (resources != null) { |
| for (int i=0; i<resources.length; i++) { |
| if (resources [i] != null) resources [i].dispose (); |
| } |
| resources = null; |
| } |
| |
| /* Release Custom Colors for ChooseColor */ |
| if (lpCustColors != 0) OS.HeapFree (hHeap, 0, lpCustColors); |
| lpCustColors = 0; |
| |
| /* Uninitialize OLE */ |
| OS.OleUninitialize (); |
| |
| /* Uninitialize buffered painting */ |
| OS.BufferedPaintUnInit (); |
| |
| /* Release references */ |
| thread = null; |
| msg = hookMsg = null; |
| keyboard = null; |
| modalDialog = null; |
| modalShells = null; |
| data = null; |
| keys = null; |
| values = null; |
| bars = popups = null; |
| indexTable = null; |
| timerIds = null; |
| controlTable = null; |
| lastControl = lastGetControl = lastHittestControl = null; |
| imageList = toolImageList = toolHotImageList = toolDisabledImageList = null; |
| timerList = null; |
| tableBuffer = null; |
| eventTable = filterTable = null; |
| items = null; |
| clickRect = null; |
| monitors = null; |
| touchSources = null; |
| |
| /* Release handles */ |
| threadId = 0; |
| } |
| |
| void releaseImageList (ImageList list) { |
| int i = 0; |
| int length = imageList.length; |
| while (i < length) { |
| if (imageList [i] == list) { |
| if (list.removeRef () > 0) return; |
| list.dispose (); |
| System.arraycopy (imageList, i + 1, imageList, i, --length - i); |
| imageList [length] = null; |
| for (int j=0; j<length; j++) { |
| if (imageList [j] != null) return; |
| } |
| imageList = null; |
| return; |
| } |
| i++; |
| } |
| } |
| |
| void releaseToolImageList (ImageList list) { |
| int i = 0; |
| int length = toolImageList.length; |
| while (i < length) { |
| if (toolImageList [i] == list) { |
| if (list.removeRef () > 0) return; |
| list.dispose (); |
| System.arraycopy (toolImageList, i + 1, toolImageList, i, --length - i); |
| toolImageList [length] = null; |
| for (int j=0; j<length; j++) { |
| if (toolImageList [j] != null) return; |
| } |
| toolImageList = null; |
| return; |
| } |
| i++; |
| } |
| } |
| |
| void releaseToolHotImageList (ImageList list) { |
| int i = 0; |
| int length = toolHotImageList.length; |
| while (i < length) { |
| if (toolHotImageList [i] == list) { |
| if (list.removeRef () > 0) return; |
| list.dispose (); |
| System.arraycopy (toolHotImageList, i + 1, toolHotImageList, i, --length - i); |
| toolHotImageList [length] = null; |
| for (int j=0; j<length; j++) { |
| if (toolHotImageList [j] != null) return; |
| } |
| toolHotImageList = null; |
| return; |
| } |
| i++; |
| } |
| } |
| |
| void releaseToolDisabledImageList (ImageList list) { |
| int i = 0; |
| int length = toolDisabledImageList.length; |
| while (i < length) { |
| if (toolDisabledImageList [i] == list) { |
| if (list.removeRef () > 0) return; |
| list.dispose (); |
| System.arraycopy (toolDisabledImageList, i + 1, toolDisabledImageList, i, --length - i); |
| toolDisabledImageList [length] = null; |
| for (int j=0; j<length; j++) { |
| if (toolDisabledImageList [j] != null) return; |
| } |
| toolDisabledImageList = null; |
| return; |
| } |
| i++; |
| } |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when an event of the given type occurs anywhere in |
| * a widget. The event type is one of the event constants defined |
| * in class <code>SWT</code>. |
| * |
| * @param eventType the type of event to listen for |
| * @param listener the listener which should no longer be notified when the event occurs |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see Listener |
| * @see SWT |
| * @see #addFilter |
| * @see #addListener |
| * |
| * @since 3.0 |
| */ |
| public void removeFilter (int eventType, Listener listener) { |
| checkDevice (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (filterTable == null) return; |
| filterTable.unhook (eventType, listener); |
| if (filterTable.size () == 0) filterTable = null; |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when an event of the given type occurs. The event type |
| * is one of the event constants defined in class <code>SWT</code>. |
| * |
| * @param eventType the type of event to listen for |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see Listener |
| * @see SWT |
| * @see #addListener |
| * |
| * @since 2.0 |
| */ |
| public void removeListener (int eventType, Listener listener) { |
| checkDevice (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (eventType, listener); |
| } |
| |
| void removeBar (Menu menu) { |
| if (bars == null) return; |
| for (int i=0; i<bars.length; i++) { |
| if (bars [i] == menu) { |
| bars [i] = null; |
| return; |
| } |
| } |
| } |
| |
| Control removeControl (long /*int*/ handle) { |
| if (handle == 0) return null; |
| lastControl = lastGetControl = null; |
| Control control = null; |
| int index = (int)/*64*/OS.RemoveProp (handle, SWT_OBJECT_INDEX) - 1; |
| if (0 <= index && index < controlTable.length) { |
| control = controlTable [index]; |
| controlTable [index] = null; |
| indexTable [index] = freeSlot; |
| freeSlot = index; |
| } |
| return control; |
| } |
| |
| void removeMenuItem (MenuItem item) { |
| if (items == null) return; |
| items [item.id - ID_START] = null; |
| } |
| |
| void removePopup (Menu menu) { |
| if (popups == null) return; |
| for (int i=0; i<popups.length; i++) { |
| if (popups [i] == menu) { |
| popups [i] = null; |
| return; |
| } |
| } |
| } |
| |
| boolean runAsyncMessages (boolean all) { |
| return synchronizer.runAsyncMessages (all); |
| } |
| |
| boolean runDeferredEvents () { |
| boolean run = false; |
| /* |
| * Run deferred events. This code is always |
| * called in the Display's thread so it must |
| * be re-enterant but need not be synchronized. |
| */ |
| while (eventQueue != null) { |
| |
| /* Take an event off the queue */ |
| Event event = eventQueue [0]; |
| if (event == null) break; |
| int length = eventQueue.length; |
| System.arraycopy (eventQueue, 1, eventQueue, 0, --length); |
| eventQueue [length] = null; |
| |
| /* Run the event */ |
| Widget widget = event.widget; |
| if (widget != null && !widget.isDisposed ()) { |
| Widget item = event.item; |
| if (item == null || !item.isDisposed ()) { |
| run = true; |
| widget.sendEvent (event); |
| } |
| } |
| |
| /* |
| * At this point, the event queue could |
| * be null due to a recursive invocation |
| * when running the event. |
| */ |
| } |
| |
| /* Clear the queue */ |
| eventQueue = null; |
| return run; |
| } |
| |
| boolean runDeferredLayouts () { |
| if (layoutDeferredCount != 0) { |
| Composite[] temp = layoutDeferred; |
| int count = layoutDeferredCount; |
| layoutDeferred = null; |
| layoutDeferredCount = 0; |
| for (int i = 0; i < count; i++) { |
| Composite comp = temp[i]; |
| if (!comp.isDisposed()) comp.setLayoutDeferred (false); |
| } |
| return true; |
| } |
| return false; |
| } |
| |
| boolean runPopups () { |
| if (popups == null) return false; |
| boolean result = false; |
| while (popups != null) { |
| Menu menu = popups [0]; |
| if (menu == null) break; |
| int length = popups.length; |
| System.arraycopy (popups, 1, popups, 0, --length); |
| popups [length] = null; |
| runDeferredEvents (); |
| if (!menu.isDisposed ()) menu._setVisible (true); |
| result = true; |
| } |
| popups = null; |
| return result; |
| } |
| |
| void runSettings () { |
| Font oldFont = getSystemFont (); |
| saveResources (); |
| sendEvent (SWT.Settings, null); |
| Font newFont = getSystemFont (); |
| boolean sameFont = oldFont.equals (newFont); |
| Shell [] shells = getShells (); |
| for (int i=0; i<shells.length; i++) { |
| Shell shell = shells [i]; |
| if (!shell.isDisposed ()) { |
| if (!sameFont) { |
| shell.updateFont (oldFont, newFont); |
| } |
| /* This code is intentionally commented */ |
| //shell.redraw (true); |
| shell.layout (true, true); |
| } |
| } |
| } |
| |
| boolean runSkin () { |
| if (skinCount > 0) { |
| Widget [] oldSkinWidgets = skinList; |
| int count = skinCount; |
| skinList = new Widget[GROW_SIZE]; |
| skinCount = 0; |
| if (eventTable != null && eventTable.hooks(SWT.Skin)) { |
| for (int i = 0; i < count; i++) { |
| Widget widget = oldSkinWidgets[i]; |
| if (widget != null && !widget.isDisposed()) { |
| widget.state &= ~Widget.SKIN_NEEDED; |
| oldSkinWidgets[i] = null; |
| Event event = new Event (); |
| event.widget = widget; |
| sendEvent (SWT.Skin, event); |
| } |
| } |
| } |
| return true; |
| } |
| return false; |
| } |
| |
| boolean runTimer (long /*int*/ id) { |
| if (timerList != null && timerIds != null) { |
| int index = 0; |
| while (index <timerIds.length) { |
| if (timerIds [index] == id) { |
| OS.KillTimer (hwndMessage, timerIds [index]); |
| timerIds [index] = 0; |
| Runnable runnable = timerList [index]; |
| timerList [index] = null; |
| if (runnable != null) { |
| try { |
| runnable.run (); |
| } catch (RuntimeException exception) { |
| runtimeExceptionHandler.accept (exception); |
| } catch (Error exception) { |
| errorHandler.accept (exception); |
| } |
| } |
| return true; |
| } |
| index++; |
| } |
| } |
| return false; |
| } |
| |
| void saveResources () { |
| int resourceCount = 0; |
| if (resources == null) { |
| resources = new Resource [RESOURCE_SIZE]; |
| } else { |
| resourceCount = resources.length; |
| Resource [] newResources = new Resource [resourceCount + RESOURCE_SIZE]; |
| System.arraycopy (resources, 0, newResources, 0, resourceCount); |
| resources = newResources; |
| } |
| if (systemFont != null) { |
| NONCLIENTMETRICS info = new NONCLIENTMETRICS (); |
| info.cbSize = NONCLIENTMETRICS.sizeof; |
| if (OS.SystemParametersInfo (OS.SPI_GETNONCLIENTMETRICS, 0, info, 0)) { |
| LOGFONT logFont = info.lfMessageFont; |
| if (lfSystemFont == null || |
| logFont.lfCharSet != lfSystemFont.lfCharSet || |
| logFont.lfHeight != lfSystemFont.lfHeight || |
| logFont.lfWidth != lfSystemFont.lfWidth || |
| logFont.lfEscapement != lfSystemFont.lfEscapement || |
| logFont.lfOrientation != lfSystemFont.lfOrientation || |
| logFont.lfWeight != lfSystemFont.lfWeight || |
| logFont.lfItalic != lfSystemFont.lfItalic || |
| logFont.lfUnderline != lfSystemFont.lfUnderline || |
| logFont.lfStrikeOut != lfSystemFont.lfStrikeOut || |
| logFont.lfCharSet != lfSystemFont.lfCharSet || |
| logFont.lfOutPrecision != lfSystemFont.lfOutPrecision || |
| logFont.lfClipPrecision != lfSystemFont.lfClipPrecision || |
| logFont.lfQuality != lfSystemFont.lfQuality || |
| logFont.lfPitchAndFamily != lfSystemFont.lfPitchAndFamily || |
| !getFontName (logFont).equals (getFontName (lfSystemFont))) { |
| resources [resourceCount++] = systemFont; |
| lfSystemFont = logFont; |
| systemFont = null; |
| } |
| } |
| } |
| if (errorImage != null) resources [resourceCount++] = errorImage; |
| if (infoImage != null) resources [resourceCount++] = infoImage; |
| if (questionImage != null) resources [resourceCount++] = questionImage; |
| if (warningIcon != null) resources [resourceCount++] = warningIcon; |
| errorImage = infoImage = questionImage = warningIcon = null; |
| for (int i=0; i<cursors.length; i++) { |
| if (cursors [i] != null) resources [resourceCount++] = cursors [i]; |
| cursors [i] = null; |
| } |
| if (resourceCount < RESOURCE_SIZE) { |
| Resource [] newResources = new Resource [resourceCount]; |
| System.arraycopy (resources, 0, newResources, 0, resourceCount); |
| resources = newResources; |
| } |
| } |
| |
| void sendEvent (int eventType, Event event) { |
| if (eventTable == null && filterTable == null) { |
| return; |
| } |
| if (event == null) event = new Event (); |
| event.display = this; |
| event.type = eventType; |
| if (event.time == 0) event.time = getLastEventTime (); |
| if (!filterEvent (event)) { |
| if (eventTable != null) sendEvent (eventTable, event); |
| } |
| } |
| |
| void sendEvent (EventTable eventTable, Event event) { |
| int type = event.type; |
| sendPreEvent (type); |
| try { |
| eventTable.sendEvent (event); |
| } finally { |
| sendPostEvent (type); |
| } |
| } |
| |
| void sendPreEvent (int eventType) { |
| if (eventType != SWT.PreEvent && eventType != SWT.PostEvent |
| && eventType != SWT.PreExternalEventDispatch |
| && eventType != SWT.PostExternalEventDispatch) { |
| if (eventTable != null && eventTable.hooks (SWT.PreEvent)) { |
| Event event = new Event (); |
| event.detail = eventType; |
| sendEvent (SWT.PreEvent, event); |
| } |
| } |
| } |
| |
| void sendPostEvent (int eventType) { |
| if (eventType != SWT.PreEvent && eventType != SWT.PostEvent |
| && eventType != SWT.PreExternalEventDispatch |
| && eventType != SWT.PostExternalEventDispatch) { |
| if (eventTable != null && eventTable.hooks (SWT.PostEvent)) { |
| Event event = new Event (); |
| event.detail = eventType; |
| sendEvent (SWT.PostEvent, event); |
| } |
| } |
| } |
| |
| /** |
| * Sends a SWT.PreExternalEventDispatch event. |
| * |
| * @noreference This method is not intended to be referenced by clients. |
| */ |
| public void sendPreExternalEventDispatchEvent () { |
| if (eventTable != null && eventTable.hooks (SWT.PreExternalEventDispatch)) { |
| sendEvent (SWT.PreExternalEventDispatch, null); |
| } |
| } |
| |
| /** |
| * Sends a SWT.PostExternalEventDispatch event. |
| * |
| * @noreference This method is not intended to be referenced by clients. |
| */ |
| public void sendPostExternalEventDispatchEvent () { |
| if (eventTable != null && eventTable.hooks (SWT.PostExternalEventDispatch)) { |
| sendEvent (SWT.PostExternalEventDispatch, null); |
| } |
| } |
| |
| /** |
| * 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 (); |
| setCursorLocationInPixels (DPIUtil.autoScaleUp (x), DPIUtil.autoScaleUp (y)); |
| } |
| |
| void setCursorLocationInPixels (int x, int y) { |
| OS.SetCursorPos (x, y); |
| } |
| |
| /** |
| * Sets the location of the on-screen pointer relative to the top left corner |
| * of the screen. <b>Note: It is typically considered bad practice for a |
| * program to move the on-screen pointer location.</b> |
| * |
| * @param point new position |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_NULL_ARGUMENT - if the point is null |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 2.0 |
| */ |
| public void setCursorLocation (Point point) { |
| checkDevice (); |
| if (point == null) error (SWT.ERROR_NULL_ARGUMENT); |
| setCursorLocation (point.x, point.y); |
| } |
| |
| /** |
| * Sets the application defined property of the receiver |
| * with the specified name to the given argument. |
| * <p> |
| * Applications may have associated arbitrary objects with the |
| * receiver in this fashion. If the objects stored in the |
| * properties need to be notified when the display is disposed |
| * of, it is the application's responsibility provide a |
| * <code>disposeExec()</code> handler which does so. |
| * </p> |
| * |
| * @param key the name of the property |
| * @param value the new value for the property |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the key is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see #getData(String) |
| * @see #disposeExec(Runnable) |
| */ |
| public void setData (String key, Object value) { |
| checkDevice (); |
| if (key == null) error (SWT.ERROR_NULL_ARGUMENT); |
| |
| if (key.equals (RUN_MESSAGES_IN_IDLE_KEY)) { |
| Boolean data = (Boolean) value; |
| runMessagesInIdle = data != null && data.booleanValue (); |
| return; |
| } |
| if (key.equals (RUN_MESSAGES_IN_MESSAGE_PROC_KEY)) { |
| Boolean data = (Boolean) value; |
| runMessagesInMessageProc = data != null && data.booleanValue (); |
| return; |
| } |
| if (key.equals (USE_OWNDC_KEY)) { |
| Boolean data = (Boolean) value; |
| useOwnDC = data != null && data.booleanValue (); |
| return; |
| } |
| if (key.equals (ACCEL_KEY_HIT)) { |
| Boolean data = (Boolean) value; |
| accelKeyHit = data != null && data.booleanValue (); |
| return; |
| } |
| /* Remove the key/value pair */ |
| if (value == null) { |
| if (keys == null) return; |
| int index = 0; |
| while (index < keys.length && !keys [index].equals (key)) index++; |
| if (index == keys.length) return; |
| if (keys.length == 1) { |
| keys = null; |
| values = null; |
| } else { |
| String [] newKeys = new String [keys.length - 1]; |
| Object [] newValues = new Object [values.length - 1]; |
| System.arraycopy (keys, 0, newKeys, 0, index); |
| System.arraycopy (keys, index + 1, newKeys, index, newKeys.length - index); |
| System.arraycopy (values, 0, newValues, 0, index); |
| System.arraycopy (values, index + 1, newValues, index, newValues.length - index); |
| keys = newKeys; |
| values = newValues; |
| } |
| return; |
| } |
| |
| /* Add the key/value pair */ |
| if (keys == null) { |
| keys = new String [] {key}; |
| values = new Object [] {value}; |
| return; |
| } |
| for (int i=0; i<keys.length; i++) { |
| if (keys [i].equals (key)) { |
| values [i] = value; |
| return; |
| } |
| } |
| String [] newKeys = new String [keys.length + 1]; |
| Object [] newValues = new Object [values.length + 1]; |
| System.arraycopy (keys, 0, newKeys, 0, keys.length); |
| System.arraycopy (values, 0, newValues, 0, values.length); |
| newKeys [keys.length] = key; |
| newValues [values.length] = value; |
| keys = newKeys; |
| values = newValues; |
| } |
| |
| /** |
| * Sets the application defined, display specific data |
| * associated with the receiver, to the argument. |
| * The <em>display specific data</em> is a single, |
| * unnamed field that is stored with every display. |
| * <p> |
| * Applications may put arbitrary objects in this field. If |
| * the object stored in the display specific data needs to |
| * be notified when the display is disposed of, it is the |
| * application's responsibility provide a |
| * <code>disposeExec()</code> handler which does so. |
| * </p> |
| * |
| * @param data the new display specific data |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see #getData() |
| * @see #disposeExec(Runnable) |
| */ |
| public void setData (Object data) { |
| checkDevice (); |
| this.data = data; |
| } |
| |
| /** |
| * Returns the application name. |
| * |
| * @return the application name |
| * |
| * @see #setAppName(String) |
| * |
| * @since 3.6 |
| */ |
| public static String getAppName () { |
| return APP_NAME; |
| } |
| |
| /** |
| * Returns the application version. |
| * |
| * @return the application version |
| * |
| * @see #setAppVersion(String) |
| * |
| * @since 3.6 |
| */ |
| public static String getAppVersion () { |
| return APP_VERSION; |
| } |
| |
| /** |
| * Sets the application name to the argument. |
| * <p> |
| * The application name can be used in several ways, |
| * depending on the platform and tools being used. |
| * Accessibility tools could ask for the application |
| * name. On Windows, if the application name is set |
| * to any value other than "SWT" (case insensitive), |
| * it is used to set the application user model ID |
| * which is used by the OS for taskbar grouping. |
| * @see <a href="http://msdn.microsoft.com/en-us/library/windows/desktop/dd378459%28v=vs.85%29.aspx#HOW">AppUserModelID (Windows)</a> |
| * </p><p> |
| * Specifying <code>null</code> for the name clears it. |
| * </p> |
| * |
| * @param name the new app name or <code>null</code> |
| */ |
| public static void setAppName (String name) { |
| APP_NAME = name; |
| } |
| |
| /** |
| * Sets the application version to the argument. |
| * |
| * @param version the new app version |
| * |
| * @since 3.6 |
| */ |
| public static void setAppVersion (String version) { |
| APP_VERSION = version; |
| } |
| |
| void setModalDialog (Dialog modalDailog) { |
| this.modalDialog = modalDailog; |
| Shell [] shells = getShells (); |
| for (int i=0; i<shells.length; i++) shells [i].updateModal (); |
| } |
| |
| void setModalShell (Shell shell) { |
| if (modalShells == null) modalShells = new Shell [4]; |
| int index = 0, length = modalShells.length; |
| while (index < length) { |
| if (modalShells [index] == shell) return; |
| if (modalShells [index] == null) break; |
| index++; |
| } |
| if (index == length) { |
| Shell [] newModalShells = new Shell [length + 4]; |
| System.arraycopy (modalShells, 0, newModalShells, 0, length); |
| modalShells = newModalShells; |
| } |
| modalShells [index] = shell; |
| Shell [] shells = getShells (); |
| for (int i=0; i<shells.length; i++) shells [i].updateModal (); |
| } |
| |
| /** |
| * Sets the synchronizer used by the display to be |
| * the argument, which can not be null. |
| * |
| * @param synchronizer the new synchronizer for the display (must not be null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the synchronizer is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_FAILED_EXEC - if an exception occurred while running an inter-thread message</li> |
| * </ul> |
| */ |
| public void setSynchronizer (Synchronizer synchronizer) { |
| checkDevice (); |
| if (synchronizer == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (synchronizer == this.synchronizer) return; |
| Synchronizer oldSynchronizer; |
| synchronized (Device.class) { |
| oldSynchronizer = this.synchronizer; |
| this.synchronizer = synchronizer; |
| } |
| if (oldSynchronizer != null) { |
| oldSynchronizer.moveAllEventsTo(synchronizer); |
| } |
| } |
| |
| /** |
| * Sets a callback that will be invoked whenever an exception is thrown by a listener or external |
| * callback function. The application may use this to set a global exception handling policy: |
| * the most common policies are either to log and discard the exception or to re-throw the |
| * exception. |
| * <p> |
| * The default SWT error handling policy is to rethrow exceptions. |
| * |
| * @param runtimeExceptionHandler new exception handler to be registered. |
| * @since 3.106 |
| */ |
| public final void setRuntimeExceptionHandler (Consumer<RuntimeException> runtimeExceptionHandler) { |
| checkDevice(); |
| this.runtimeExceptionHandler = Objects.requireNonNull (runtimeExceptionHandler); |
| } |
| |
| /** |
| * Returns the current exception handler. It will receive all exceptions thrown by listeners |
| * and external callbacks in this display. If code wishes to temporarily replace the exception |
| * handler (for example, during a unit test), it is common practice to invoke this method prior |
| * to replacing the exception handler so that the old handler may be restored afterward. |
| * |
| * @return the current exception handler. Never <code>null</code>. |
| * @since 3.106 |
| */ |
| public final Consumer<RuntimeException> getRuntimeExceptionHandler () { |
| return runtimeExceptionHandler; |
| } |
| |
| /** |
| * Sets a callback that will be invoked whenever an error is thrown by a listener or external |
| * callback function. The application may use this to set a global exception handling policy: |
| * the most common policies are either to log and discard the exception or to re-throw the |
| * exception. |
| * <p> |
| * The default SWT error handling policy is to rethrow exceptions. |
| * |
| * @param errorHandler new error handler to be registered. |
| * @since 3.106 |
| */ |
| public final void setErrorHandler (Consumer<Error> errorHandler) { |
| checkDevice(); |
| this.errorHandler = Objects.requireNonNull (errorHandler); |
| } |
| |
| /** |
| * Returns the current exception handler. It will receive all errors thrown by listeners |
| * and external callbacks in this display. If code wishes to temporarily replace the error |
| * handler (for example, during a unit test), it is common practice to invoke this method prior |
| * to replacing the error handler so that the old handler may be restored afterward. |
| * |
| * @return the current error handler. Never <code>null</code>. |
| * @since 3.106 |
| */ |
| public final Consumer<Error> getErrorHandler () { |
| return errorHandler; |
| } |
| |
| int shiftedKey (int key) { |
| /* Clear the virtual keyboard and press the shift key */ |
| for (int i=0; i<keyboard.length; i++) keyboard [i] = 0; |
| keyboard [OS.VK_SHIFT] |= 0x80; |
| |
| /* Translate the key to ASCII or UNICODE using the virtual keyboard */ |
| char [] result = new char [1]; |
| if (OS.ToUnicode (key, key, keyboard, result, 1, 0) == 1) return result [0]; |
| return 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 (); |
| if (getMessageCount () != 0) return true; |
| sendPreExternalEventDispatchEvent (); |
| boolean result = OS.WaitMessage (); |
| sendPostExternalEventDispatchEvent (); |
| return result; |
| } |
| |
| /** |
| * Causes the <code>run()</code> method of the runnable to |
| * be invoked by the user-interface thread at the next |
| * reasonable opportunity. The thread which calls this method |
| * is suspended until the runnable completes. Specifying <code>null</code> |
| * as the runnable simply wakes the user-interface thread. |
| * <p> |
| * Note that at the time the runnable is invoked, widgets |
| * that have the receiver as their display may have been |
| * disposed. Therefore, it is necessary to check for this |
| * case inside the runnable before accessing the widget. |
| * </p> |
| * |
| * @param runnable code to run on the user-interface thread or <code>null</code> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_FAILED_EXEC - if an exception occurred when executing the runnable</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see #asyncExec |
| */ |
| public void syncExec (Runnable runnable) { |
| Synchronizer synchronizer; |
| synchronized (Device.class) { |
| if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED); |
| synchronizer = this.synchronizer; |
| } |
| synchronizer.syncExec (runnable); |
| } |
| |
| /** |
| * Causes the <code>run()</code> method of the runnable to |
| * be invoked by the user-interface thread after the specified |
| * number of milliseconds have elapsed. If milliseconds is less |
| * than zero, the runnable is not executed. |
| * <p> |
| * Note that at the time the runnable is invoked, widgets |
| * that have the receiver as their display may have been |
| * disposed. Therefore, it is necessary to check for this |
| * case inside the runnable before accessing the widget. |
| * </p> |
| * |
| * @param milliseconds the delay before running the runnable |
| * @param runnable code to run on the user-interface thread |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the runnable is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see #asyncExec |
| */ |
| public void timerExec (int milliseconds, Runnable runnable) { |
| checkDevice (); |
| if (runnable == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (timerList == null) timerList = new Runnable [4]; |
| if (timerIds == null) timerIds = new long /*int*/ [4]; |
| int index = 0; |
| while (index < timerList.length) { |
| if (timerList [index] == runnable) break; |
| index++; |
| } |
| long /*int*/ timerId = 0; |
| if (index != timerList.length) { |
| timerId = timerIds [index]; |
| if (milliseconds < 0) { |
| OS.KillTimer (hwndMessage, timerId); |
| timerList [index] = null; |
| timerIds [index] = 0; |
| return; |
| } |
| } else { |
| if (milliseconds < 0) return; |
| index = 0; |
| while (index < timerList.length) { |
| if (timerList [index] == null) break; |
| index++; |
| } |
| timerId = nextTimerId++; |
| if (index == timerList.length) { |
| Runnable [] newTimerList = new Runnable [timerList.length + 4]; |
| System.arraycopy (timerList, 0, newTimerList, 0, timerList.length); |
| timerList = newTimerList; |
| long /*int*/ [] newTimerIds = new long /*int*/ [timerIds.length + 4]; |
| System.arraycopy (timerIds, 0, newTimerIds, 0, timerIds.length); |
| timerIds = newTimerIds; |
| } |
| } |
| long /*int*/ newTimerID = OS.SetTimer (hwndMessage, timerId, milliseconds, 0); |
| if (newTimerID != 0) { |
| timerList [index] = runnable; |
| timerIds [index] = newTimerID; |
| } |
| } |
| |
| boolean translateAccelerator (MSG msg, Control control) { |
| accelKeyHit = true; |
| boolean result = control.translateAccelerator (msg); |
| accelKeyHit = false; |
| return result; |
| } |
| |
| static int translateKey (int key) { |
| for (int i=0; i<KeyTable.length; i++) { |
| if (KeyTable [i] [0] == key) return KeyTable [i] [1]; |
| } |
| return 0; |
| } |
| |
| boolean translateMnemonic (MSG msg, Control control) { |
| switch (msg.message) { |
| case OS.WM_CHAR: |
| case OS.WM_SYSCHAR: |
| return control.translateMnemonic (msg); |
| } |
| return false; |
| } |
| |
| boolean translateTraversal (MSG msg, Control control) { |
| switch (msg.message) { |
| case OS.WM_KEYDOWN: |
| switch ((int)/*64*/msg.wParam) { |
| case OS.VK_RETURN: |
| case OS.VK_ESCAPE: |
| case OS.VK_TAB: |
| case OS.VK_UP: |
| case OS.VK_DOWN: |
| case OS.VK_LEFT: |
| case OS.VK_RIGHT: |
| case OS.VK_PRIOR: |
| case OS.VK_NEXT: |
| return control.translateTraversal (msg); |
| } |
| break; |
| case OS.WM_SYSKEYDOWN: |
| switch ((int)/*64*/msg.wParam) { |
| case OS.VK_MENU: |
| return control.translateTraversal (msg); |
| } |
| break; |
| } |
| return false; |
| } |
| |
| 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 (); |
| /* |
| * Feature in Windows. When an application does not remove |
| * events from the event queue for some time, Windows assumes |
| * the application is not responding and no longer sends paint |
| * events to the application. The fix is to detect that the |
| * application is not responding and call PeekMessage() with |
| * PM_REMOVE to tell Windows that the application is ready |
| * to dispatch events. Note that the message does not have |
| * to be found or dispatched in order to wake Windows up. |
| * |
| * NOTE: This allows other cross thread messages to be delivered, |
| * most notably WM_ACTIVATE. |
| */ |
| if (OS.IsHungAppWindow (hwndMessage)) { |
| MSG msg = new MSG (); |
| int flags = OS.PM_REMOVE | OS.PM_NOYIELD; |
| OS.PeekMessage (msg, hwndMessage, SWT_NULL, SWT_NULL, flags); |
| } |
| Shell[] shells = getShells (); |
| for (int i=0; i<shells.length; i++) { |
| Shell shell = shells [i]; |
| if (!shell.isDisposed ()) shell.update (true); |
| } |
| } |
| |
| /** |
| * If the receiver's user-interface thread was <code>sleep</code>ing, |
| * causes it to be awakened and start running again. Note that this |
| * method may be called from any thread. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see #sleep |
| */ |
| public void wake () { |
| synchronized (Device.class) { |
| if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED); |
| if (thread == Thread.currentThread ()) return; |
| wakeThread (); |
| } |
| } |
| |
| void wakeThread () { |
| OS.PostThreadMessage (threadId, OS.WM_NULL, 0, 0); |
| } |
| |
| long /*int*/ windowProc (long /*int*/ hwnd, long /*int*/ msg, long /*int*/ wParam, long /*int*/ lParam) { |
| if (lastControl != null && lastHwnd == hwnd) { |
| return lastControl.windowProc (hwnd, (int)/*64*/msg, wParam, lParam); |
| } |
| int index = (int)/*64*/OS.GetProp (hwnd, SWT_OBJECT_INDEX) - 1; |
| if (0 <= index && index < controlTable.length) { |
| Control control = controlTable [index]; |
| if (control != null) { |
| lastHwnd = hwnd; |
| lastControl = control; |
| return control.windowProc (hwnd, (int)/*64*/msg, wParam, lParam); |
| } |
| } |
| return OS.DefWindowProc (hwnd, (int)/*64*/msg, wParam, lParam); |
| } |
| |
| int textWidth (String text, long /*int*/ handle) { |
| long /*int*/ oldFont = 0; |
| RECT rect = new RECT (); |
| long /*int*/ hDC = OS.GetDC (handle); |
| long /*int*/ newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); |
| if (newFont != 0) oldFont = OS.SelectObject (hDC, newFont); |
| int flags = OS.DT_CALCRECT | OS.DT_SINGLELINE | OS.DT_NOPREFIX; |
| TCHAR buffer = new TCHAR(0, text, false); |
| OS.DrawText (hDC, buffer, buffer.length (), rect, flags); |
| if (newFont != 0) OS.SelectObject (hDC, oldFont); |
| OS.ReleaseDC (handle, hDC); |
| return (rect.right - rect.left); |
| } |
| |
| String wrapText (String text, long /*int*/ handle, int width) { |
| String Lf = "\r\n"; //$NON-NLS-1$ |
| text = withCrLf (text); |
| int length = text.length (); |
| if (width <= 0 || length == 0 || length == 1) return text; |
| StringBuffer result = new StringBuffer (); |
| int lineStart = 0, lineEnd = 0; |
| while (lineStart < length) { |
| lineEnd = text.indexOf (Lf, lineStart); |
| boolean noLf = lineEnd == -1; |
| if (noLf) lineEnd = length; |
| int nextStart = lineEnd + Lf.length (); |
| while (lineEnd > lineStart + 1 && Character.isWhitespace (text.charAt (lineEnd - 1))) { |
| lineEnd--; |
| } |
| int wordStart = lineStart, wordEnd = lineStart; |
| int i = lineStart; |
| while (i < lineEnd) { |
| int lastStart = wordStart, lastEnd = wordEnd; |
| wordStart = i; |
| while (i < lineEnd && !Character.isWhitespace (text.charAt (i))) { |
| i++; |
| } |
| wordEnd = i - 1; |
| String line = text.substring (lineStart, wordEnd + 1); |
| int lineWidth = textWidth (line, handle); |
| while (i < lineEnd && Character.isWhitespace (text.charAt (i))) { |
| i++; |
| } |
| if (lineWidth > width) { |
| if (lastStart == wordStart) { |
| while (wordStart < wordEnd) { |
| line = text.substring (lineStart, wordStart + 1); |
| lineWidth = textWidth (line, handle); |
| if (lineWidth >= width) break; |
| wordStart++; |
| } |
| if (wordStart == lastStart) wordStart++; |
| lastEnd = wordStart - 1; |
| } |
| line = text.substring (lineStart, lastEnd + 1); |
| result.append (line); result.append (Lf); |
| i = wordStart; lineStart = wordStart; wordEnd = wordStart; |
| } |
| } |
| if (lineStart < lineEnd) { |
| result.append (text.substring (lineStart, lineEnd)); |
| } |
| if (!noLf) { |
| result.append (Lf); |
| } |
| lineStart = nextStart; |
| } |
| return result.toString (); |
| } |
| |
| static String withCrLf (String string) { |
| |
| /* If the string is empty, return the string. */ |
| int length = string.length (); |
| if (length == 0) return string; |
| |
| /* |
| * Check for an LF or CR/LF and assume the rest of |
| * the string is formated that way. This will not |
| * work if the string contains mixed delimiters. |
| */ |
| int i = string.indexOf ('\n', 0); |
| if (i == -1) return string; |
| if (i > 0 && string.charAt (i - 1) == '\r') { |
| return string; |
| } |
| |
| /* |
| * The string is formatted with LF. Compute the |
| * number of lines and the size of the buffer |
| * needed to hold the result |
| */ |
| i++; |
| int count = 1; |
| while (i < length) { |
| if ((i = string.indexOf ('\n', i)) == -1) break; |
| count++; i++; |
| } |
| count += length; |
| |
| /* Create a new string with the CR/LF line terminator. */ |
| i = 0; |
| StringBuffer result = new StringBuffer (count); |
| while (i < length) { |
| int j = string.indexOf ('\n', i); |
| if (j == -1) j = length; |
| result.append (string.substring (i, j)); |
| if ((i = j) < length) { |
| result.append ("\r\n"); //$NON-NLS-1$ |
| i++; |
| } |
| } |
| return result.toString (); |
| } |
| |
| static char [] withCrLf (char [] string) { |
| /* If the string is empty, return the string. */ |
| int length = string.length; |
| if (length == 0) return string; |
| |
| /* |
| * Check for an LF or CR/LF and assume the rest of |
| * the string is formated that way. This will not |
| * work if the string contains mixed delimiters. |
| * Also, compute the number of lines. |
| */ |
| int count = 0; |
| for (int i = 0; i < string.length; i++) { |
| if (string [i] == '\n') { |
| count++; |
| if (count == 1 && i > 0 && string [i - 1] == '\r') return string; |
| } |
| } |
| if (count == 0) return string; |
| |
| /* |
| * The string is formatted with LF. |
| */ |
| count += length; |
| |
| /* Create a new string with the CR/LF line terminator. */ |
| char [] result = new char [count]; |
| for (int i = 0, j = 0; i < length && j < count; i++) { |
| if (string [i] == '\n') { |
| result [j++] = '\r'; |
| } |
| result [j++] = string [i]; |
| } |
| |
| return result; |
| } |
| |
| } |