| /******************************************************************************* |
| * Copyright (c) 2000, 2020 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.io.*; |
| import java.lang.reflect.*; |
| import java.net.*; |
| import java.util.*; |
| import java.util.Map.*; |
| import java.util.function.*; |
| import java.util.regex.*; |
| import java.util.regex.Pattern; |
| |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.graphics.*; |
| import org.eclipse.swt.internal.*; |
| import org.eclipse.swt.internal.GDBus.*; |
| import org.eclipse.swt.internal.cairo.*; |
| import org.eclipse.swt.internal.gtk.*; |
| |
| /** |
| * 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> |
| * <p> |
| * 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 { |
| |
| static boolean strictChecks = System.getProperty("org.eclipse.swt.internal.gtk.enableStrictChecks") != null; |
| |
| private static final int SLOT_IN_USE = -2; |
| private static final int LAST_TABLE_INDEX = -1; |
| |
| /* Events Dispatching and Callback */ |
| int gdkEventCount; |
| long [] gdkEvents; |
| Widget [] gdkEventWidgets; |
| int [] dispatchEvents; |
| Event [] eventQueue; |
| long fds; |
| int allocated_nfds; |
| boolean wake; |
| int [] max_priority = new int [1], timeout = new int [1]; |
| Callback eventCallback; |
| long eventProc, windowProc2, windowProc3, windowProc4, windowProc5, windowProc6; |
| long snapshotDrawProc, changeValueProc; |
| long keyPressReleaseProc, focusProc, enterMotionScrollProc, leaveProc, resizeProc, activateProc; |
| long gesturePressReleaseProc; |
| long notifyProc; |
| Callback windowCallback2, windowCallback3, windowCallback4, windowCallback5, windowCallback6; |
| Callback snapshotDraw, changeValue; |
| Callback keyPressReleaseCallback, focusCallback, enterMotionScrollCallback, leaveCallback, resizeCallback, activateCallback; |
| Callback gesturePressReleaseCallback; |
| Callback notifyCallback; |
| EventTable eventTable, filterTable; |
| static String APP_NAME = "SWT"; //$NON-NLS-1$ |
| static String APP_VERSION = ""; //$NON-NLS-1$ |
| static final String DISPATCH_EVENT_KEY = "org.eclipse.swt.internal.gtk.dispatchEvent"; //$NON-NLS-1$ |
| static final String ADD_WIDGET_KEY = "org.eclipse.swt.internal.addWidget"; //$NON-NLS-1$ |
| static final String EXTERNAL_EVENT_LOOP_KEY = "org.eclipse.swt.internal.gtk.externalEventLoop"; //$NON-NLS-1$ |
| long [] closures, closuresProc; |
| int [] closuresCount; |
| int [] signalIds; |
| long shellMapProcClosure; |
| boolean externalEventLoop; // events are dispatched outside SWT, e.g. when system dialog is open |
| |
| /* Widget Table */ |
| int [] indexTable; |
| int freeSlot; |
| long lastHandle; |
| Widget lastWidget; |
| Widget [] widgetTable; |
| final static int GROW_SIZE = 1024; |
| static final int SWT_OBJECT_INDEX; |
| static final int SWT_OBJECT_INDEX1; |
| static final int SWT_OBJECT_INDEX2; |
| static { |
| byte [] buffer = Converter.wcsToMbcs ("SWT_OBJECT_INDEX", true); //$NON-NLS-1$ |
| SWT_OBJECT_INDEX = OS.g_quark_from_string (buffer); |
| buffer = Converter.wcsToMbcs ("SWT_OBJECT_INDEX1", true); //$NON-NLS-1$ |
| SWT_OBJECT_INDEX1 = OS.g_quark_from_string (buffer); |
| buffer = Converter.wcsToMbcs ("SWT_OBJECT_INDEX2", true); //$NON-NLS-1$ |
| SWT_OBJECT_INDEX2 = OS.g_quark_from_string (buffer); |
| } |
| |
| /* Modality */ |
| Shell [] modalShells; |
| Dialog modalDialog; |
| static final String GET_MODAL_DIALOG = "org.eclipse.swt.internal.gtk.getModalDialog"; //$NON-NLS-1$ |
| static final String SET_MODAL_DIALOG = "org.eclipse.swt.internal.gtk.setModalDialog"; //$NON-NLS-1$ |
| |
| /* Focus */ |
| int focusEvent; |
| Control focusControl; |
| Shell activeShell; |
| boolean activePending; |
| boolean ignoreActivate, ignoreFocus; |
| |
| Tracker tracker; |
| |
| /* Input method resources */ |
| Control imControl; |
| long preeditWindow, preeditLabel; |
| |
| /* Sync/Async Widget Communication */ |
| Synchronizer synchronizer = new Synchronizer (this); |
| Consumer<RuntimeException> runtimeExceptionHandler = DefaultExceptionHandler.RUNTIME_EXCEPTION_HANDLER; |
| Consumer<Error> errorHandler = DefaultExceptionHandler.RUNTIME_ERROR_HANDLER; |
| Thread thread; |
| |
| /* Display Shutdown */ |
| private class SessionManagerListener implements SessionManagerDBus.IListener { |
| Display parent; |
| |
| public SessionManagerListener(Display parent) { |
| this.parent = parent; |
| } |
| |
| @Override |
| public boolean isReadyToExit() { |
| Event event = new Event (); |
| parent.sendEvent(SWT.Close, event); |
| return event.doit; |
| } |
| |
| @Override |
| public void stop() { |
| parent.dispose(); |
| } |
| } |
| |
| SessionManagerDBus sessionManagerDBus; |
| SessionManagerListener sessionManagerListener; |
| Runnable [] disposeList; |
| |
| /* |
| * DBus objects to be freed upong Display release. Only public for use in |
| * other areas of SWT (i.e. WebKit). See bug 540060. |
| */ |
| /** @noreference */ |
| public ArrayList<Long> dBusServers = new ArrayList<>(); |
| /** @noreference */ |
| public ArrayList<Long> dBusAuthObservers = new ArrayList<>(); |
| /** @noreference */ |
| public ArrayList<Long> dBusGUIDS = new ArrayList<>(); |
| /** @noreference */ |
| public ArrayList<Long> dBusConnections = new ArrayList<>(); |
| |
| /* Deferred Layout list */ |
| Composite[] layoutDeferred; |
| int layoutDeferredCount; |
| |
| /* System Tray */ |
| Tray tray; |
| TrayItem currentTrayItem; |
| |
| /* Timers */ |
| int [] timerIds; |
| Runnable [] timerList; |
| Callback timerCallback; |
| long timerProc; |
| Callback windowTimerCallback; |
| long windowTimerProc; |
| |
| /* Caret */ |
| Caret currentCaret; |
| Callback caretCallback; |
| int caretId; |
| long caretProc; |
| |
| /* Mnemonics */ |
| Control mnemonicControl; |
| |
| /* Mouse hover */ |
| int mouseHoverId; |
| long mouseHoverHandle, mouseHoverProc; |
| Callback mouseHoverCallback; |
| |
| /* Tooltip size allocate callback */ |
| long sizeAllocateProc; |
| Callback sizeAllocateCallback; |
| long sizeRequestProc; |
| Callback sizeRequestCallback; |
| |
| /* Shell map callback */ |
| long shellMapProc; |
| Callback shellMapCallback; |
| |
| /* Idle proc callback */ |
| long idleProc; |
| int idleHandle; |
| Callback idleCallback; |
| static final String ADD_IDLE_PROC_KEY = "org.eclipse.swt.internal.gtk.addIdleProc"; //$NON-NLS-1$ |
| static final String REMOVE_IDLE_PROC_KEY = "org.eclipse.swt.internal.gtk.removeIdleProc"; //$NON-NLS-1$ |
| Object idleLock = new Object(); |
| boolean idleNeeded; |
| |
| /* GtkTreeView callbacks */ |
| long cellDataProc; |
| Callback cellDataCallback; |
| |
| |
| /* Set direction callback */ |
| long setDirectionProc; |
| Callback setDirectionCallback; |
| static final String GET_DIRECTION_PROC_KEY = "org.eclipse.swt.internal.gtk.getDirectionProc"; //$NON-NLS-1$ |
| |
| /* Set emissionProc callback */ |
| long emissionProc; |
| Callback emissionProcCallback; |
| static final String GET_EMISSION_PROC_KEY = "org.eclipse.swt.internal.gtk.getEmissionProc"; //$NON-NLS-1$ |
| |
| /* Get all children callback */ |
| long allChildrenProc, allChildren; |
| Callback allChildrenCallback; |
| |
| /* Settings callbacks */ |
| long signalProc; |
| Callback signalCallback; |
| long shellHandle; |
| boolean settingsChanged, runSettings; |
| static final int STYLE_UPDATED = 1; |
| static final int PROPERTY_NOTIFY = 2; |
| |
| /* Entry focus behaviour */ |
| boolean entrySelectOnFocus; |
| |
| /* Enter/Exit events */ |
| Control currentControl; |
| |
| /* Flush exposes */ |
| long checkIfEventProc; |
| Callback checkIfEventCallback; |
| long flushWindow; |
| boolean flushAll; |
| GdkRectangle flushRect = new GdkRectangle (); |
| XExposeEvent exposeEvent = new XExposeEvent (); |
| long [] flushData = new long [1]; |
| |
| /* System Resources */ |
| Image errorImage, infoImage, questionImage, warningImage; |
| Cursor [] cursors = new Cursor [SWT.CURSOR_HAND + 1]; |
| Resource [] resources; |
| static final int RESOURCE_SIZE = 1 + 4 + SWT.CURSOR_HAND + 1; |
| |
| /* Colors, GTK3 */ |
| GdkRGBA COLOR_WIDGET_DARK_SHADOW_RGBA, COLOR_WIDGET_NORMAL_SHADOW_RGBA, COLOR_WIDGET_LIGHT_SHADOW_RGBA; |
| GdkRGBA COLOR_WIDGET_HIGHLIGHT_SHADOW_RGBA, COLOR_WIDGET_BACKGROUND_RGBA, COLOR_WIDGET_FOREGROUND_RGBA, COLOR_WIDGET_BORDER_RGBA; |
| GdkRGBA COLOR_LIST_FOREGROUND_RGBA, COLOR_LIST_BACKGROUND_RGBA, COLOR_LIST_SELECTION_RGBA, COLOR_LIST_SELECTION_TEXT_RGBA; |
| GdkRGBA COLOR_LIST_SELECTION_INACTIVE_RGBA, COLOR_LIST_SELECTION_TEXT_INACTIVE_RGBA; |
| GdkRGBA COLOR_INFO_BACKGROUND_RGBA, COLOR_INFO_FOREGROUND_RGBA, COLOR_LINK_FOREGROUND_RGBA; |
| GdkRGBA COLOR_TITLE_FOREGROUND_RGBA, COLOR_TITLE_BACKGROUND_RGBA, COLOR_TITLE_BACKGROUND_GRADIENT_RGBA; |
| GdkRGBA COLOR_TITLE_INACTIVE_FOREGROUND_RGBA, COLOR_TITLE_INACTIVE_BACKGROUND_RGBA, COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT_RGBA; |
| GdkRGBA COLOR_WIDGET_DISABLED_FOREGROUND_RGBA, COLOR_TEXT_DISABLED_BACKGROUND_RGBA; |
| GdkRGBA COLOR_TOGGLE_BUTTON_FOREGROUND_RGBA; |
| |
| /* Initialize color list */ |
| ArrayList<String> colorList; |
| |
| /* Placeholder color ints since SWT system colors is missing them */ |
| final int SWT_COLOR_LIST_SELECTION_TEXT_INACTIVE = 38; |
| final int SWT_COLOR_LIST_SELECTION_INACTIVE = 39; |
| |
| /* Theme related */ |
| /** The name of the current theme, including the theme named by GTK_THEME. */ |
| static String themeName; |
| /** True if the current theme is dark. This includes the theme set in GTK_THEME. */ |
| static boolean themeDark; |
| |
| private final static Pattern colorPattern = Pattern.compile("[^-]color: (rgba?\\((?:\\d+(?:,\\s?)?){3,4}\\))"); |
| |
| /* Popup Menus */ |
| Menu [] popups; |
| |
| /* Click count*/ |
| int clickCount = 1; |
| |
| /* Entry inner border */ |
| static final int INNER_BORDER = 2; |
| |
| /* Timestamp of the Last Received Events */ |
| int lastEventTime, lastUserEventTime; |
| |
| /* Pango layout constructor */ |
| long pangoLayoutNewProc; |
| long pangoFontFamilyNewProc; |
| long pangoFontFaceNewProc; |
| |
| /* IM Context constructor */ |
| long imContextNewProc; |
| |
| /* GtkPrinterOptionWidget constructor */ |
| long printerOptionWidgetNewProc; |
| |
| /* Custom Resize */ |
| double resizeLocationX, resizeLocationY; |
| int resizeBoundsX, resizeBoundsY, resizeBoundsWidth, resizeBoundsHeight; |
| int resizeMode; |
| |
| /* Fixed Subclass */ |
| static long fixed_type; |
| |
| /* Renderer Subclass */ |
| static long text_renderer_type, pixbuf_renderer_type, toggle_renderer_type; |
| static long text_renderer_info_ptr, pixbuf_renderer_info_ptr, toggle_renderer_info_ptr; |
| static Callback rendererClassInitCallback, rendererRenderCallback, rendererSnapshotCallback; |
| static Callback rendererGetPreferredWidthCallback; |
| static long rendererClassInitProc, rendererRenderProc, rendererSnapshotProc; |
| static long rendererGetPreferredWidthProc; |
| |
| /* Key Mappings */ |
| static final int [] [] KeyTable = { |
| |
| /* Keyboard and Mouse Masks */ |
| {GDK.GDK_Alt_L, SWT.ALT}, |
| {GDK.GDK_Alt_R, SWT.ALT}, |
| {GDK.GDK_Meta_L, SWT.ALT}, |
| {GDK.GDK_Meta_R, SWT.ALT}, |
| {GDK.GDK_Shift_L, SWT.SHIFT}, |
| {GDK.GDK_Shift_R, SWT.SHIFT}, |
| {GDK.GDK_Control_L, SWT.CONTROL}, |
| {GDK.GDK_Control_R, SWT.CONTROL}, |
| {GDK.GDK_ISO_Level3_Shift, SWT.ALT_GR}, |
| // {OS.GDK_????, SWT.COMMAND}, |
| // {OS.GDK_????, SWT.COMMAND}, |
| |
| /* Non-Numeric Keypad Keys */ |
| {GDK.GDK_Up, SWT.ARROW_UP}, |
| {GDK.GDK_KP_Up, SWT.ARROW_UP}, |
| {GDK.GDK_Down, SWT.ARROW_DOWN}, |
| {GDK.GDK_KP_Down, SWT.ARROW_DOWN}, |
| {GDK.GDK_Left, SWT.ARROW_LEFT}, |
| {GDK.GDK_KP_Left, SWT.ARROW_LEFT}, |
| {GDK.GDK_Right, SWT.ARROW_RIGHT}, |
| {GDK.GDK_KP_Right, SWT.ARROW_RIGHT}, |
| {GDK.GDK_Page_Up, SWT.PAGE_UP}, |
| {GDK.GDK_KP_Page_Up, SWT.PAGE_UP}, |
| {GDK.GDK_Page_Down, SWT.PAGE_DOWN}, |
| {GDK.GDK_KP_Page_Down, SWT.PAGE_DOWN}, |
| {GDK.GDK_Home, SWT.HOME}, |
| {GDK.GDK_KP_Home, SWT.HOME}, |
| {GDK.GDK_End, SWT.END}, |
| {GDK.GDK_KP_End, SWT.END}, |
| {GDK.GDK_Insert, SWT.INSERT}, |
| {GDK.GDK_KP_Insert, SWT.INSERT}, |
| |
| /* Virtual and Ascii Keys */ |
| {GDK.GDK_BackSpace, SWT.BS}, |
| {GDK.GDK_Return, SWT.CR}, |
| {GDK.GDK_Delete, SWT.DEL}, |
| {GDK.GDK_KP_Delete, SWT.DEL}, |
| {GDK.GDK_Escape, SWT.ESC}, |
| {GDK.GDK_Linefeed, SWT.LF}, |
| {GDK.GDK_Tab, SWT.TAB}, |
| {GDK.GDK_ISO_Left_Tab, SWT.TAB}, |
| |
| /* Functions Keys */ |
| {GDK.GDK_F1, SWT.F1}, |
| {GDK.GDK_F2, SWT.F2}, |
| {GDK.GDK_F3, SWT.F3}, |
| {GDK.GDK_F4, SWT.F4}, |
| {GDK.GDK_F5, SWT.F5}, |
| {GDK.GDK_F6, SWT.F6}, |
| {GDK.GDK_F7, SWT.F7}, |
| {GDK.GDK_F8, SWT.F8}, |
| {GDK.GDK_F9, SWT.F9}, |
| {GDK.GDK_F10, SWT.F10}, |
| {GDK.GDK_F11, SWT.F11}, |
| {GDK.GDK_F12, SWT.F12}, |
| {GDK.GDK_F13, SWT.F13}, |
| {GDK.GDK_F14, SWT.F14}, |
| {GDK.GDK_F15, SWT.F15}, |
| {GDK.GDK_F16, SWT.F16}, |
| {GDK.GDK_F17, SWT.F17}, |
| {GDK.GDK_F18, SWT.F18}, |
| {GDK.GDK_F19, SWT.F19}, |
| {GDK.GDK_F20, SWT.F20}, |
| |
| /* Numeric Keypad Keys */ |
| {GDK.GDK_KP_Multiply, SWT.KEYPAD_MULTIPLY}, |
| {GDK.GDK_KP_Add, SWT.KEYPAD_ADD}, |
| {GDK.GDK_KP_Enter, SWT.KEYPAD_CR}, |
| {GDK.GDK_KP_Subtract, SWT.KEYPAD_SUBTRACT}, |
| {GDK.GDK_KP_Decimal, SWT.KEYPAD_DECIMAL}, |
| {GDK.GDK_KP_Divide, SWT.KEYPAD_DIVIDE}, |
| {GDK.GDK_KP_0, SWT.KEYPAD_0}, |
| {GDK.GDK_KP_1, SWT.KEYPAD_1}, |
| {GDK.GDK_KP_2, SWT.KEYPAD_2}, |
| {GDK.GDK_KP_3, SWT.KEYPAD_3}, |
| {GDK.GDK_KP_4, SWT.KEYPAD_4}, |
| {GDK.GDK_KP_5, SWT.KEYPAD_5}, |
| {GDK.GDK_KP_6, SWT.KEYPAD_6}, |
| {GDK.GDK_KP_7, SWT.KEYPAD_7}, |
| {GDK.GDK_KP_8, SWT.KEYPAD_8}, |
| {GDK.GDK_KP_9, SWT.KEYPAD_9}, |
| {GDK.GDK_KP_Equal, SWT.KEYPAD_EQUAL}, |
| |
| /* Other keys */ |
| {GDK.GDK_Caps_Lock, SWT.CAPS_LOCK}, |
| {GDK.GDK_Num_Lock, SWT.NUM_LOCK}, |
| {GDK.GDK_Scroll_Lock, SWT.SCROLL_LOCK}, |
| {GDK.GDK_Pause, SWT.PAUSE}, |
| {GDK.GDK_Break, SWT.BREAK}, |
| {GDK.GDK_Print, SWT.PRINT_SCREEN}, |
| {GDK.GDK_Help, SWT.HELP}, |
| |
| }; |
| |
| /* Cache pressed modifier state. See Bug 537025. */ |
| int cachedModifierState = 0; |
| |
| /* Latin layout key group */ |
| private int latinKeyGroup; |
| |
| /* Mapping from layout key group to number of Latin alphabet keys. See Bug 533395, Bug 61190. */ |
| Map<Integer, Integer> groupKeysCount; |
| |
| /* Keymap "keys-changed" callback */ |
| long keysChangedProc; |
| Callback keysChangedCallback; |
| |
| /* Multiple Displays. */ |
| static Display Default; |
| static Display [] Displays = new Display [4]; |
| |
| /* 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. |
| * ".class" can not be used on CLDC. |
| */ |
| // static { |
| // String name = Display.class.getName (); |
| // int index = name.lastIndexOf ('.'); |
| // PACKAGE_NAME = name.substring (0, index + 1); |
| // } |
| |
| /* Minimum GTK version requirement */ |
| static final int GTK3_MAJOR = 3; |
| static final int GTK3_MINOR = 20; |
| static final int GTK3_MICRO = 0; |
| |
| /* Latest GTK version support */ |
| static final int GTK4_MAJOR = 4; |
| static final int GTK4_MINOR = 0; |
| static final int GTK4_MICRO = 0; |
| |
| /* Display Data */ |
| Object data; |
| String [] keys; |
| Object [] values; |
| |
| /* Initial Guesses for Shell Trimmings. */ |
| static final int TRIM_NONE = 0; |
| static final int TRIM_BORDER = 1; |
| static final int TRIM_RESIZE = 2; |
| static final int TRIM_TITLE_BORDER = 3; |
| static final int TRIM_TITLE_RESIZE = 4; |
| static final int TRIM_TITLE = 5; |
| int [] trimWidths = new int [6]; |
| int [] trimHeights = new int [6]; |
| { |
| trimWidths [TRIM_NONE] = 0; trimHeights [TRIM_NONE] = 0; |
| trimWidths [TRIM_BORDER] = 4; trimHeights [TRIM_BORDER] = 4; |
| trimWidths [TRIM_RESIZE] = 6; trimHeights [TRIM_RESIZE] = 6; |
| trimWidths [TRIM_TITLE_BORDER] = 5; trimHeights [TRIM_TITLE_BORDER] = 28; |
| trimWidths [TRIM_TITLE_RESIZE] = 6; trimHeights [TRIM_TITLE_RESIZE] = 29; |
| trimWidths [TRIM_TITLE] = 0; trimHeights [TRIM_TITLE] = 23; |
| |
| String path = System.getProperty ("user.home"); //$NON-NLS-1$ |
| if (path != null) { |
| File file = new File (path, ".swt/trims.prefs"); |
| if (file.exists () && file.isFile ()) { |
| Properties props = new Properties (); |
| try (FileInputStream fis = new FileInputStream (file)) { |
| props.load (fis); |
| String trimWidthsString = props.getProperty ("trimWidths"); |
| String trimHeightsString = props.getProperty ("trimHeights"); |
| if (trimWidthsString != null && trimHeightsString != null) { |
| StringTokenizer tok = new StringTokenizer (trimWidthsString); |
| for (int i = 0; i < trimWidths.length && tok.hasMoreTokens (); i++) { |
| trimWidths [i] = Integer.parseInt (tok.nextToken ()); |
| } |
| tok = new StringTokenizer (trimHeightsString); |
| for (int i = 0; i < trimHeights.length && tok.hasMoreTokens (); i++) { |
| trimHeights [i] = Integer.parseInt (tok.nextToken ()); |
| } |
| } |
| } catch (IOException | NumberFormatException e) { |
| // use default values |
| } |
| } |
| } |
| } |
| |
| boolean ignoreTrim; |
| |
| /* Window Manager */ |
| String windowManager; |
| |
| /* |
| * 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); |
| } |
| |
| /** |
| * 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; |
| } |
| |
| void addGdkEvent (long event) { |
| if (gdkEvents == null) { |
| int length = GROW_SIZE; |
| gdkEvents = new long [length]; |
| gdkEventWidgets = new Widget [length]; |
| gdkEventCount = 0; |
| } |
| if (gdkEventCount == gdkEvents.length) { |
| int length = gdkEventCount + GROW_SIZE; |
| long [] newEvents = new long [length]; |
| System.arraycopy (gdkEvents, 0, newEvents, 0, gdkEventCount); |
| gdkEvents = newEvents; |
| Widget [] newWidgets = new Widget [length]; |
| System.arraycopy (gdkEventWidgets, 0, newWidgets, 0, gdkEventCount); |
| gdkEventWidgets = newWidgets; |
| } |
| Widget widget = null; |
| long handle = GTK.gtk_get_event_widget (event); |
| if (handle != 0) { |
| do { |
| widget = getWidget (handle); |
| } while (widget == null && (handle = GTK.gtk_widget_get_parent (handle)) != 0); |
| } |
| gdkEvents [gdkEventCount] = event; |
| gdkEventWidgets [gdkEventCount] = widget; |
| gdkEventCount++; |
| } |
| |
| void addIdleProc() { |
| synchronized (idleLock){ |
| this.idleNeeded = true; |
| if (idleHandle == 0) { |
| idleHandle = OS.g_idle_add (idleProc, 0); |
| } |
| } |
| } |
| |
| /** |
| * 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 (); |
| if (eventType == SWT.OpenDocument || eventType == SWT.OpenUrl) { |
| gdbus_init_methods(); |
| } |
| eventTable.hook (eventType, listener); |
| } |
| |
| /** |
| * Handle gdbus on 'org.eclipse.swt' DBus session. |
| * E.g equinox launcher passes files/urls to SWT via gdbus. "./eclipse myFile" or "./eclipse http://www.google.com" |
| * |
| * Only one SWT instance can hold the unique and well-known name at one time. |
| * We construct the name as org.eclipse.swt.NAME (e.g. org.eclipse.swt.Eclipse), |
| * where NAME is derived from the application executable but may be changed |
| * using the command-line argument -name. |
| * |
| * For equinox launcher, See eclipseGtk.c:gtkPlatformJavaSystemProperties |
| */ |
| private void gdbus_init_methods() { |
| GDBusMethod[] methods = { |
| new GDBusMethod( |
| // FileOpen call can be reached via: |
| // gdbus call --session --dest org.eclipse.swt.Eclipse --object-path /org/eclipse/swt --method org.eclipse.swt.FileOpen "['/tmp/hi','http://www.eclipse.org']" |
| // See Bug525305_Browser_OpenUrl.java test snippet for testing/verification. |
| // In a child eclipse, this will open the files in a new editor. |
| // This is reached by equinox launcher from eclipseGtk.c. Look for "g_dbus_proxy_call_sync" |
| "FileOpen", |
| new String [][] {{OS.DBUS_TYPE_STRING_ARRAY,"A String array containing file paths or URLs for OpenDocument/OpenUrl signal"}}, |
| new String [0][0], |
| (args) -> { |
| String[] fileNames = (String[]) args[0]; |
| for (int i = 0; i < fileNames.length; i++) { |
| Event event = new Event (); |
| event.text = fileNames[i]; |
| try { |
| if (new URI (fileNames[i]).getScheme() != null) { // For specs, see: https://docs.oracle.com/javase/8/docs/api/java/net/URI.html |
| // E.g: eclipse http://www.google.com |
| sendEvent (SWT.OpenUrl, event); |
| } else { |
| throw new URISyntaxException(fileNames[i], "Not a valid Url. Probably file."); |
| } |
| } catch (URISyntaxException e) { |
| // E.g eclipse /tmp/myfile (absolute) or eclipse myfile (relative) |
| sendEvent (SWT.OpenDocument, event); |
| } |
| } |
| return null; |
| }) |
| }; |
| GDBus.init(methods, getAppName()); |
| } |
| |
| long allChildrenProc (long widget, long recurse) { |
| allChildren = OS.g_list_append (allChildren, widget); |
| if (recurse != 0 && GTK.GTK_IS_CONTAINER (widget)) { |
| GTK.gtk_container_forall (widget, allChildrenProc, recurse); |
| } |
| return 0; |
| } |
| |
| void addMouseHoverTimeout (long handle) { |
| if (mouseHoverId != 0) OS.g_source_remove (mouseHoverId); |
| mouseHoverId = OS.g_timeout_add (400, mouseHoverProc, handle); |
| mouseHoverHandle = handle; |
| } |
| |
| void addPopup (Menu menu) { |
| if (popups == null) popups = new Menu [4]; |
| int length = popups.length; |
| for (int i=0; i<length; i++) { |
| if (popups [i] == menu) return; |
| /* Bug 530577, 528998: Clicking on button that triggers popup menus causes |
| * menu.setVisible to be called twice, once due to MouseDown, and once due to ButtonClicked. |
| * This causes two duplicate menus (with different handles) to popup at the same time. |
| * The fix is to avoid having two identical popup menus in the queue. |
| */ |
| if (popups[i] != null && popups[i].getNameText().equals(menu.getNameText())) return; |
| } |
| int index = 0; |
| while (index < length) { |
| if (popups [index] == null) break; |
| index++; |
| } |
| if (index == length) { |
| Menu [] newPopups = new Menu [length + 4]; |
| System.arraycopy (popups, 0, newPopups, 0, length); |
| popups = newPopups; |
| } |
| popups [index] = menu; |
| } |
| |
| void 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; |
| } |
| |
| void addWidget (long handle, Widget widget) { |
| if (handle == 0) return; |
| // Last element in the indexTable is -1, so if freeSlot == -1 we have no place anymore |
| if (freeSlot == LAST_TABLE_INDEX) { |
| int length = (freeSlot = indexTable.length) + GROW_SIZE; |
| int[] newIndexTable = new int[length]; |
| Widget[] newWidgetTable = new Widget [length]; |
| System.arraycopy (indexTable, 0, newIndexTable, 0, freeSlot); |
| System.arraycopy (widgetTable, 0, newWidgetTable, 0, freeSlot); |
| for (int i = freeSlot; i < length - 1; i++) { |
| newIndexTable[i] = i + 1; |
| } |
| // mark last slot as "need resize" |
| newIndexTable[length - 1] = LAST_TABLE_INDEX; |
| indexTable = newIndexTable; |
| widgetTable = newWidgetTable; |
| } |
| int index = freeSlot + 1; |
| if(strictChecks) { |
| long data = OS.g_object_get_qdata (handle, SWT_OBJECT_INDEX); |
| if(data > 0 && data != index) { |
| SWT.error(SWT.ERROR_INVALID_ARGUMENT, null, ". Potential leak of " + widget + debugInfoForIndex(data - 1)); |
| } |
| } |
| OS.g_object_set_qdata (handle, SWT_OBJECT_INDEX, index); |
| int oldSlot = freeSlot; |
| freeSlot = indexTable[oldSlot]; |
| // Mark old index slot as used |
| indexTable [oldSlot] = SLOT_IN_USE; |
| if(widgetTable [oldSlot] != null) { |
| SWT.error(SWT.ERROR_INVALID_ARGUMENT, null, ". Trying to override non empty slot with " + widget + debugInfoForIndex(oldSlot)); |
| } |
| widgetTable [oldSlot] = widget; |
| } |
| |
| /** |
| * Causes the <code>run()</code> method of the runnable to |
| * be invoked by the user-interface thread at the next |
| * reasonable opportunity. The caller of this method continues |
| * to run in parallel, and is not notified when the |
| * runnable has completed. 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); |
| synchronized (idleLock) { |
| if (idleNeeded && idleHandle == 0) { |
| //NOTE: calling unlocked function in OS |
| idleHandle = OS.g_idle_add (idleProc, 0); |
| } |
| } |
| synchronizer.asyncExec (runnable); |
| } |
| } |
| |
| /** |
| * Causes the system hardware to emit a short sound |
| * (if it supports this capability). |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void beep () { |
| if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS); |
| GDK.gdk_display_beep(GDK.gdk_display_get_default()); |
| } |
| |
| long cellDataProc (long tree_column, long cell, long tree_model, long iter, long data) { |
| Widget widget = getWidget (data); |
| if (widget == null) return 0; |
| return widget.cellDataProc (tree_column, cell, tree_model, iter, data); |
| } |
| |
| |
| @Override |
| protected void checkDevice () { |
| if (thread == null) error (SWT.ERROR_WIDGET_DISPOSED); |
| if (thread != Thread.currentThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS); |
| if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED); |
| } |
| |
| static void checkDisplay (Thread thread, boolean multiple) { |
| synchronized (Device.class) { |
| for (int i=0; i<Displays.length; i++) { |
| if (Displays [i] != null) { |
| if (!multiple) SWT.error (SWT.ERROR_NOT_IMPLEMENTED, null, " [multiple displays]"); //$NON-NLS-1$ |
| if (Displays [i].thread == thread) SWT.error (SWT.ERROR_THREAD_INVALID_ACCESS); |
| } |
| } |
| } |
| } |
| |
| long checkIfEventProc (long display, long xEvent, long userData) { |
| int type = OS.X_EVENT_TYPE (xEvent); |
| switch (type) { |
| case OS.Expose: |
| case OS.GraphicsExpose: |
| break; |
| default: |
| return 0; |
| } |
| long window = GDK.gdk_x11_window_lookup_for_display(GDK.gdk_display_get_default(), OS.X_EVENT_WINDOW (xEvent)); |
| if (window == 0) return 0; |
| if (flushWindow != 0) { |
| if (flushAll) { |
| long tempWindow = window; |
| do { |
| if (tempWindow == flushWindow) break; |
| } while ((tempWindow = GDK.gdk_window_get_parent (tempWindow)) != 0); |
| if (tempWindow != flushWindow) return 0; |
| } else { |
| if (window != flushWindow) return 0; |
| } |
| } |
| OS.memmove (exposeEvent, xEvent, XExposeEvent.sizeof); |
| switch (type) { |
| case OS.Expose: |
| case OS.GraphicsExpose: { |
| flushRect.x = exposeEvent.x; |
| flushRect.y = exposeEvent.y; |
| flushRect.width = Math.max (0, exposeEvent.width); |
| flushRect.height = Math.max (0, exposeEvent.height); |
| GDK.gdk_window_invalidate_rect (window, flushRect, true); |
| exposeEvent.type = -1; |
| OS.memmove (xEvent, exposeEvent, XExposeEvent.sizeof); |
| break; |
| } |
| } |
| return 0; |
| } |
| |
| /** |
| * 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); |
| } |
| |
| void clearModal (Shell shell) { |
| if (modalShells == null) return; |
| int index = 0, length = modalShells.length; |
| while (index < length) { |
| if (modalShells [index] == shell) break; |
| if (modalShells [index] == null) return; |
| index++; |
| } |
| if (index == length) return; |
| System.arraycopy (modalShells, index + 1, modalShells, index, --length - index); |
| modalShells [length] = null; |
| if (index == 0 && modalShells [0] == null) modalShells = null; |
| Shell [] shells = getShells (); |
| for (int i=0; i<shells.length; i++) shells [i].updateModal (); |
| } |
| |
| /** |
| * Requests that the connection between SWT and the underlying |
| * operating system be closed. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see Device#dispose |
| * |
| * @since 2.0 |
| */ |
| public void close () { |
| checkDevice (); |
| Event event = new Event (); |
| sendEvent (SWT.Close, event); |
| if (event.doit) dispose (); |
| } |
| |
| /** |
| * Creates the device in the operating system. If the device |
| * does not have a handle, this method may do nothing depending |
| * on the device. |
| * <p> |
| * This method is called before <code>init</code>. |
| * </p> |
| * |
| * @param data the DeviceData which describes the receiver |
| * |
| * @see #init |
| */ |
| @Override |
| protected void create (DeviceData data) { |
| checkSubclass (); |
| checkDisplay(thread = Thread.currentThread (), false); |
| createDisplay (data); |
| register (this); |
| if (Default == null) Default = this; |
| } |
| |
| /** |
| * Check if the XIM module is present and generates a warning for potential graphical issues |
| * if GTK_IM_MODULE=xim is detected. See Bug 517671. |
| * |
| * Additionally, this method enforces IBus as the input method for SWT-GTK on GNOME. |
| * This is because GNOME forces IBus by default, so any discrepancy can cause crashes on newer |
| * versions of GTK3. |
| */ |
| void checkIMModule () { |
| Map<String, String> env = System.getenv(); |
| String module = env.get("GTK_IM_MODULE"); |
| if (module != null && module.equals("xim")) { |
| System.err.println("***WARNING: Detected: GTK_IM_MODULE=xim. This input method is unsupported and can cause graphical issues."); |
| System.err.println("***WARNING: Unset GTK_IM_MODULE or set GTK_IM_MODULE=ibus if flicking is experienced. "); |
| } |
| // Enforce ibus as the input module on GNOME |
| if (OS.isGNOME) { |
| long settings = GTK.gtk_settings_get_default (); |
| byte[] ibus = Converter.wcsToMbcs ("ibus", true); |
| if (settings != 0) OS.g_object_set (settings, GTK.gtk_im_module, ibus, 0); |
| } |
| } |
| |
| /** |
| * Sets the org.eclipse.swt.internal.gtk.theme value with the current |
| * GTK theme name. Checks if the current theme SWT is running with |
| * is dark or not. This includes checking the GTK_THEME environment |
| * variable, the theme name, and GSettings. |
| * |
| * @param themeName the full name of the current theme SWT is running with |
| * @return true if the current theme is dark |
| */ |
| boolean checkAndSetThemeDetails (String themeName) { |
| if (themeName.endsWith("-dark") || themeName.endsWith(":dark")) { |
| System.setProperty("org.eclipse.swt.internal.gtk.theme", themeName); |
| return true; |
| } |
| long settings = GTK.gtk_settings_get_default (); |
| int [] darkThemePreferred = new int [1]; |
| OS.g_object_get(settings, GTK.gtk_application_prefer_dark_theme, darkThemePreferred, 0); |
| if (darkThemePreferred[0] != 0) { |
| /* |
| * When 'gtk-application-prefer-dark-theme' is set to true, GTK uses the 'dark' |
| * variant of the theme specified in the system settings -- see 'get_theme_name' |
| * in the GtkSettings source code for more context. |
| */ |
| System.setProperty("org.eclipse.swt.internal.gtk.theme", themeName.concat(":dark")); |
| } else { |
| System.setProperty("org.eclipse.swt.internal.gtk.theme", themeName); |
| } |
| return darkThemePreferred[0] != 0; |
| } |
| |
| void createDisplay (DeviceData data) { |
| boolean init = GTK.GTK4 ? GTK.gtk_init_check () : GTK.gtk_init_check (new long [] {0}, null); |
| if (!init) SWT.error (SWT.ERROR_NO_HANDLES, null, " [gtk_init_check() failed]"); //$NON-NLS-1$ |
| checkIMModule(); |
| //set GTK+ Theme name as property for introspection purposes |
| themeName = OS.GTK_THEME_SET ? OS.GTK_THEME_SET_NAME : OS.getThemeName(); |
| themeDark = checkAndSetThemeDetails(themeName); |
| if (OS.isX11()) { |
| xDisplay = GTK.GTK4 ? 0 : GDK.gdk_x11_get_default_xdisplay(); |
| } |
| if (OS.SWT_DEBUG) Device.DEBUG = true; |
| long ptr = GTK.gtk_check_version (GTK3_MAJOR, GTK3_MINOR, GTK3_MICRO); |
| if (ptr != 0) { |
| int length = C.strlen (ptr); |
| byte [] buffer = new byte [length]; |
| C.memmove (buffer, ptr, length); |
| System.out.println ("***WARNING: " + new String (Converter.mbcsToWcs (buffer))); //$NON-NLS-1$ |
| System.out.println ("***WARNING: SWT requires GTK " + GTK3_MAJOR+ "." + GTK3_MINOR + "." + GTK3_MICRO); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ |
| int major = GTK.gtk_get_major_version(), minor = GTK.gtk_get_minor_version (), micro = GTK.gtk_get_micro_version (); |
| System.out.println ("***WARNING: Detected: " + major + "." + minor + "." + micro); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ |
| } |
| fixed_type = OS.swt_fixed_get_type(); |
| if (rendererClassInitProc == 0) { |
| rendererClassInitCallback = new Callback (getClass (), "rendererClassInitProc", 2); //$NON-NLS-1$ |
| rendererClassInitProc = rendererClassInitCallback.getAddress (); |
| } |
| if (GTK.GTK4) { |
| if (rendererSnapshotProc == 0) { |
| rendererSnapshotCallback = new Callback (getClass (), "rendererSnapshotProc", 6); //$NON-NLS-1$ |
| rendererSnapshotProc = rendererSnapshotCallback.getAddress (); |
| } |
| } else { |
| if (rendererRenderProc == 0) { |
| rendererRenderCallback = new Callback (getClass (), "rendererRenderProc", 6); //$NON-NLS-1$ |
| rendererRenderProc = rendererRenderCallback.getAddress (); |
| } |
| } |
| if (rendererGetPreferredWidthProc == 0) { |
| rendererGetPreferredWidthCallback = new Callback (getClass (), "rendererGetPreferredWidthProc", 4); //$NON-NLS-1$ |
| rendererGetPreferredWidthProc = rendererGetPreferredWidthCallback.getAddress (); |
| } |
| if (text_renderer_type == 0) { |
| GTypeInfo renderer_info = new GTypeInfo (); |
| renderer_info.class_size = (short) GTK.GtkCellRendererTextClass_sizeof (); |
| renderer_info.class_init = rendererClassInitProc; |
| renderer_info.instance_size = (short) GTK.GtkCellRendererText_sizeof (); |
| text_renderer_info_ptr = OS.g_malloc (GTypeInfo.sizeof); |
| OS.memmove (text_renderer_info_ptr, renderer_info, GTypeInfo.sizeof); |
| byte [] type_name = Converter.wcsToMbcs ("SwtTextRenderer", true); //$NON-NLS-1$ |
| text_renderer_type = OS.g_type_register_static (GTK.GTK_TYPE_CELL_RENDERER_TEXT (), type_name, text_renderer_info_ptr, 0); |
| } |
| |
| /* |
| * In GTK4, GtkCellRendererPixbuf & GtkCellRendererToggle are final structs, and |
| * we no longer have access to them in order to register our own type. |
| */ |
| if (!GTK.GTK4) { |
| if (pixbuf_renderer_type == 0) { |
| GTypeInfo renderer_info = new GTypeInfo(); |
| renderer_info.class_size = (short) GTK.GtkCellRendererPixbufClass_sizeof(); |
| renderer_info.class_init = rendererClassInitProc; |
| renderer_info.instance_size = (short) GTK.GtkCellRendererPixbuf_sizeof(); |
| pixbuf_renderer_info_ptr = OS.g_malloc(GTypeInfo.sizeof); |
| OS.memmove(pixbuf_renderer_info_ptr, renderer_info, GTypeInfo.sizeof); |
| byte[] type_name = Converter.wcsToMbcs("SwtPixbufRenderer", true); //$NON-NLS-1$ |
| pixbuf_renderer_type = OS.g_type_register_static(GTK.GTK_TYPE_CELL_RENDERER_PIXBUF(), type_name, pixbuf_renderer_info_ptr, 0); |
| } |
| if (toggle_renderer_type == 0) { |
| GTypeInfo renderer_info = new GTypeInfo(); |
| renderer_info.class_size = (short) GTK.GtkCellRendererToggleClass_sizeof(); |
| renderer_info.class_init = rendererClassInitProc; |
| renderer_info.instance_size = (short) GTK.GtkCellRendererToggle_sizeof(); |
| toggle_renderer_info_ptr = OS.g_malloc(GTypeInfo.sizeof); |
| OS.memmove(toggle_renderer_info_ptr, renderer_info, GTypeInfo.sizeof); |
| byte[] type_name = Converter.wcsToMbcs("SwtToggleRenderer", true); //$NON-NLS-1$ |
| toggle_renderer_type = OS.g_type_register_static(GTK.GTK_TYPE_CELL_RENDERER_TOGGLE (), type_name, toggle_renderer_info_ptr, 0); |
| } |
| } |
| |
| GTK.gtk_widget_set_default_direction (GTK.GTK_TEXT_DIR_LTR); |
| byte [] buffer = Converter.wcsToMbcs (APP_NAME, true); |
| OS.g_set_prgname (buffer); |
| if (OS.isX11() && !GTK.GTK4) { |
| GDK.gdk_set_program_class (buffer); |
| } |
| |
| /* Initialize the hidden shell */ |
| if (GTK.GTK4) { |
| shellHandle = GTK.gtk_window_new(); |
| } else { |
| shellHandle = GTK.gtk_window_new (GTK.GTK_WINDOW_TOPLEVEL); |
| } |
| if (shellHandle == 0) error (SWT.ERROR_NO_HANDLES); |
| GTK.gtk_widget_realize (shellHandle); |
| |
| /* Initialize the filter and event callback */ |
| eventCallback = new Callback (this, "eventProc", 2); //$NON-NLS-1$ |
| eventProc = eventCallback.getAddress (); |
| GDK.gdk_event_handler_set (eventProc, 0, 0); |
| |
| signalCallback = new Callback (this, "signalProc", 3); //$NON-NLS-1$ |
| signalProc = signalCallback.getAddress (); |
| |
| if (!GTK.GTK4) { |
| byte[] atomName = Converter.wcsToMbcs ("SWT_Window_" + APP_NAME, true); //$NON-NLS-1$ |
| long atom = GDK.gdk_atom_intern(atomName, false); |
| GDK.gdk_selection_owner_set(GTK.gtk_widget_get_window(shellHandle), atom, OS.CurrentTime, false); |
| GDK.gdk_selection_owner_get(atom); |
| |
| // No GdkWindow on GTK4 |
| GTK.gtk_widget_add_events (shellHandle, GDK.GDK_PROPERTY_CHANGE_MASK); |
| OS.g_signal_connect (shellHandle, OS.property_notify_event, signalProc, PROPERTY_NOTIFY); |
| } |
| |
| latinKeyGroup = findLatinKeyGroup (); |
| keysChangedCallback = new Callback (this, "keysChangedProc", 2); //$NON-NLS-1$ |
| keysChangedProc = keysChangedCallback.getAddress (); |
| long keymap; |
| long display = GDK.gdk_display_get_default(); |
| if (GTK.GTK4) { |
| long keyboardDevice = GDK.gdk_seat_get_keyboard(GDK.gdk_display_get_default_seat(display)); |
| OS.g_signal_connect (keyboardDevice, OS.changed, keysChangedProc, 0); |
| } else { |
| keymap = GDK.gdk_keymap_get_for_display(display); |
| OS.g_signal_connect (keymap, OS.keys_changed, keysChangedProc, 0); |
| } |
| } |
| |
| /** |
| * Determine key group of Latin layout, and update the layout group to key count map. |
| * If there are multiple Latin keyboard layout group, return the first one. |
| * |
| * @return the most Latin keyboard layout group (i.e. group holding the max number of Latin alphabet keys) |
| */ |
| private int findLatinKeyGroup () { |
| int result = 0; |
| groupKeysCount = new HashMap<> (); |
| long display = GDK.gdk_display_get_default(); |
| |
| // count all key groups for Latin alphabet |
| for (int keyval = GDK.GDK_KEY_a; keyval <= GDK.GDK_KEY_z; keyval++) { |
| long [] keys = new long [1]; |
| int [] n_keys = new int [1]; |
| |
| boolean foundKeys; |
| if (GTK.GTK4) { |
| foundKeys = GDK.gdk_display_map_keyval(display, keyval, keys, n_keys); |
| } else { |
| long keymap = GDK.gdk_keymap_get_for_display(display); |
| foundKeys = GDK.gdk_keymap_get_entries_for_keyval (keymap, keyval, keys, n_keys); |
| } |
| |
| if (foundKeys) { |
| GdkKeymapKey key_entry = new GdkKeymapKey (); |
| for (int key = 0; key < n_keys [0]; key++) { |
| OS.memmove (key_entry, keys [0] + key * GdkKeymapKey.sizeof, GdkKeymapKey.sizeof); |
| Integer keys_count = (Integer) groupKeysCount.get (key_entry.group); |
| if (keys_count != null) { |
| keys_count++; |
| } else { |
| keys_count = 1; |
| } |
| groupKeysCount.put (key_entry.group, keys_count); |
| } |
| OS.g_free (keys [0]); |
| } |
| } |
| |
| // group with maximum keys count is Latin |
| int max_keys_count = 0; |
| for (Map.Entry<Integer, Integer> entry : groupKeysCount.entrySet()) { |
| Integer group = entry.getKey (); |
| Integer keys_count = entry.getValue (); |
| if (keys_count > max_keys_count) { |
| result = group; |
| max_keys_count = keys_count; |
| } |
| } |
| |
| return result; |
| } |
| |
| /** |
| * Return the most Latin keyboard layout group. |
| */ |
| int getLatinKeyGroup () { |
| return latinKeyGroup; |
| } |
| |
| /** |
| * Return a mapping from layout group to the number of Latin alphabet (a-z) in each group |
| */ |
| Map<Integer, Integer> getGroupKeysCount () { |
| return groupKeysCount; |
| } |
| |
| /** |
| * 'keys-changed' event handler. |
| * Updates the most Latin keyboard layout group field. |
| */ |
| long keysChangedProc (long keymap, long user_data) { |
| latinKeyGroup = findLatinKeyGroup (); |
| return 0; |
| } |
| |
| Image createImage (String name) { |
| byte[] buffer = Converter.wcsToMbcs(name, true); |
| |
| long pixbuf; |
| if (GTK.GTK4) { |
| long iconTheme = GTK.gtk_icon_theme_get_for_display(GDK.gdk_display_get_default()); |
| long paintable = GTK.gtk_icon_theme_lookup_icon(iconTheme, buffer, 0, 48, 1, GTK.GTK_TEXT_DIR_LTR, GTK.GTK_ICON_LOOKUP_FORCE_REGULAR); |
| long file = GTK.gtk_icon_paintable_get_file(paintable); |
| long texture = GDK.gdk_texture_new_from_file(file, 0); |
| pixbuf = GDK.gdk_pixbuf_get_from_texture(texture); |
| |
| OS.g_object_unref(texture); |
| OS.g_object_unref(file); |
| OS.g_object_unref(paintable); |
| } else { |
| long iconTheme = GTK.gtk_icon_theme_get_default(); |
| pixbuf = GTK.gtk_icon_theme_load_icon(iconTheme, buffer, 48, GTK.GTK_ICON_LOOKUP_FORCE_SIZE, 0); |
| } |
| |
| if (pixbuf == 0) return null; |
| int width = GDK.gdk_pixbuf_get_width (pixbuf); |
| int height = GDK.gdk_pixbuf_get_height (pixbuf); |
| int stride = GDK.gdk_pixbuf_get_rowstride (pixbuf); |
| boolean hasAlpha = GDK.gdk_pixbuf_get_has_alpha (pixbuf); |
| long pixels = GDK.gdk_pixbuf_get_pixels (pixbuf); |
| byte [] data = new byte [stride * height]; |
| C.memmove (data, pixels, data.length); |
| OS.g_object_unref (pixbuf); |
| ImageData imageData = null; |
| if (hasAlpha) { |
| PaletteData palette = new PaletteData (0xFF000000, 0xFF0000, 0xFF00); |
| imageData = new ImageData (width, height, 32, palette); |
| byte [] alpha = new byte [stride * height]; |
| for (int y=0; y<height; y++) { |
| for (int x=0; x<width; x++) { |
| alpha [y*width+x] = data [y*stride+x*4+3]; |
| data [y*stride+x*4+3] = 0; |
| } |
| } |
| imageData.setAlphas (0, 0, width * height, alpha, 0); |
| } else { |
| PaletteData palette = new PaletteData (0xFF0000, 0xFF00, 0xFF); |
| imageData = new ImageData (width, height, 24, palette); |
| } |
| imageData.data = data; |
| imageData.bytesPerLine = stride; |
| return new Image (this, imageData); |
| } |
| |
| 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 () { |
| } |
| |
| long emissionProc (long ihint, long n_param_values, long param_values, long data) { |
| long topLevel; |
| if (GTK.GTK4) { |
| topLevel = GTK.gtk_widget_get_native (OS.g_value_peek_pointer(param_values)); |
| } else { |
| topLevel = GTK.gtk_widget_get_toplevel (OS.g_value_peek_pointer(param_values)); |
| } |
| |
| if (topLevel == data) { |
| GTK.gtk_widget_set_direction (OS.g_value_peek_pointer(param_values), GTK.GTK_TEXT_DIR_RTL); |
| } |
| |
| return 1; |
| } |
| |
| /** |
| * 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; |
| } |
| } |
| |
| /** |
| * Causes the <code>run()</code> method of the runnable to |
| * be invoked by the user-interface thread just before the |
| * receiver is disposed. Specifying a <code>null</code> runnable |
| * is ignored. |
| * |
| * @param runnable code to run at dispose time. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void disposeExec (Runnable runnable) { |
| checkDevice (); |
| if (disposeList == null) disposeList = new Runnable [4]; |
| for (int i=0; i<disposeList.length; i++) { |
| if (disposeList [i] == null) { |
| disposeList [i] = runnable; |
| return; |
| } |
| } |
| Runnable [] newDisposeList = new Runnable [disposeList.length + 4]; |
| System.arraycopy (disposeList, 0, newDisposeList, 0, disposeList.length); |
| newDisposeList [disposeList.length] = runnable; |
| disposeList = newDisposeList; |
| } |
| |
| /** |
| * Does whatever display specific cleanup is required, and then |
| * uses the code in <code>SWTError.error</code> to handle the error. |
| * |
| * @param code the descriptive error code |
| * |
| * @see SWTError#error |
| */ |
| void error (int code) { |
| SWT.error (code); |
| } |
| |
| long eventProc (long event, long data) { |
| /* |
| * Use gdk_event_get_time() rather than event.time or |
| * gtk_get_current_event_time(). If the event does not |
| * have a time stamp, then the field will contain garbage. |
| * Note that calling gtk_get_current_event_time() from |
| * outside of gtk_main_do_event() seems to always |
| * return zero. |
| */ |
| int time = GDK.gdk_event_get_time (event); |
| if (time != 0) lastEventTime = time; |
| |
| int eventType = GTK.GTK4 ? GDK.gdk_event_get_event_type(event) : GDK.GDK_EVENT_TYPE (event); |
| Control.fixGdkEventTypeValues(eventType); |
| switch (eventType) { |
| case GDK.GDK_BUTTON_PRESS: |
| case GDK.GDK_KEY_PRESS: |
| lastUserEventTime = time; |
| } |
| boolean dispatch = true; |
| if (dispatchEvents != null) { |
| dispatch = false; |
| for (int i = 0; i < dispatchEvents.length; i++) { |
| if (eventType == dispatchEvents [i]) { |
| dispatch = true; |
| break; |
| } |
| } |
| } |
| if (!dispatch) { |
| long copiedEvent; |
| if (GTK.GTK4) { |
| copiedEvent = GDK.gdk_event_ref (event); |
| } else { |
| copiedEvent = GDK.gdk_event_copy (event); |
| } |
| |
| addGdkEvent (copiedEvent); |
| return 0; |
| } |
| dispatch = true; |
| if (tracker != null) { |
| dispatch = tracker.processEvent (event); |
| } |
| if (dispatch) GTK.gtk_main_do_event (event); |
| if (dispatchEvents == null) putGdkEvents (); |
| return 0; |
| } |
| |
| /** |
| * Given the operating system handle for a widget, returns |
| * the instance of the <code>Widget</code> subclass which |
| * represents it in the currently running application, if |
| * such exists, or null if no matching widget can be found. |
| * <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 handle) { |
| checkDevice (); |
| return getWidget (handle); |
| } |
| |
| /** |
| * Given the operating system handle for a widget, |
| * and widget-specific id, returns the instance of |
| * the <code>Widget</code> subclass which represents |
| * the handle/id pair in the currently running application, |
| * if such exists, or null if no matching widget can be found. |
| * <p> |
| * <b>IMPORTANT:</b> This method should not be called from |
| * application code. The arguments are platform-specific. |
| * </p> |
| * |
| * @param handle the handle for the widget |
| * @param id the id for the subwidget (usually an item) |
| * @return the SWT widget that the handle/id pair represents |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @noreference This method is not intended to be referenced by clients. |
| * |
| * @since 3.1 |
| */ |
| public Widget findWidget (long handle, long id) { |
| checkDevice (); |
| return null; |
| } |
| |
| /** |
| * Given a widget and a widget-specific id, returns the |
| * instance of the <code>Widget</code> subclass which represents |
| * the widget/id pair in the currently running application, |
| * if such exists, or null if no matching widget can be found. |
| * |
| * @param widget the widget |
| * @param id the id for the subwidget (usually an item) |
| * @return the SWT subwidget (usually an item) that the widget/id pair represents |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @noreference This method is not intended to be referenced by clients. |
| * |
| * @since 3.3 |
| */ |
| public Widget findWidget (Widget widget, long id) { |
| checkDevice (); |
| return null; |
| } |
| |
| static long rendererClassInitProc (long g_class, long class_data) { |
| GtkCellRendererClass klass = new GtkCellRendererClass (); |
| OS.memmove (klass, g_class); |
| if (GTK.GTK4) { |
| klass.snapshot = rendererSnapshotProc; |
| } else { |
| klass.render = rendererRenderProc; |
| } |
| klass.get_preferred_width = rendererGetPreferredWidthProc; |
| OS.memmove (g_class, klass); |
| return 0; |
| } |
| |
| static long snapshotDrawProc (long handle, long snapshot) { |
| Display display = getCurrent (); |
| Widget widget = display.getWidget (handle); |
| if (widget != null) widget.snapshotToDraw(handle, snapshot); |
| long child = GTK.gtk_widget_get_first_child(handle); |
| // Propagate the snapshot down the widget tree |
| while (child != 0) { |
| GTK.gtk_widget_snapshot_child(handle, child, snapshot); |
| child = GTK.gtk_widget_get_next_sibling(child); |
| } |
| return 0; |
| } |
| |
| static long rendererGetPreferredWidthProc (long cell, long handle, long minimun_size, long natural_size) { |
| Display display = getCurrent (); |
| Widget widget = display.getWidget (handle); |
| if (widget != null) return widget.rendererGetPreferredWidthProc (cell, handle, minimun_size, natural_size); |
| return 0; |
| } |
| |
| static long rendererRenderProc (long cell, long cr, long handle, long background_area, long cell_area, long flags) { |
| Display display = getCurrent (); |
| Widget widget = display.getWidget (handle); |
| if (widget != null) return widget.rendererRenderProc (cell, cr, handle, background_area, cell_area, flags); |
| return 0; |
| } |
| |
| static long rendererSnapshotProc (long cell, long snapshot, long handle, long background_area, long cell_area, long flags) { |
| Display display = getCurrent (); |
| Widget widget = display.getWidget (handle); |
| if (widget != null) return widget.rendererSnapshotProc (cell, snapshot, handle, background_area, cell_area, flags); |
| return 0; |
| } |
| |
| void flushExposes (long window, boolean all) { |
| if (OS.isX11()) { |
| this.flushWindow = window; |
| this.flushAll = all; |
| long xDisplay = GDK.gdk_x11_display_get_xdisplay(GDK.gdk_display_get_default()); |
| long xEvent = OS.g_malloc (XEvent.sizeof); |
| OS.XCheckIfEvent (xDisplay, xEvent, checkIfEventProc, 0); |
| OS.g_free (xEvent); |
| this.flushWindow = 0; |
| } |
| } |
| |
| /** |
| * 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 (); |
| return activeShell; |
| } |
| |
| /** |
| * 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 ()); |
| } |
| |
| /** |
| * 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 () { |
| if (OS.isX11()) { |
| Rectangle workArea = getWorkArea(); |
| /* |
| * getWorkArea() can return null if the WM isn't running Xorg (i.e. x11 on Wayland). |
| * To workaround these cases, return the workArea only if getWorkArea() succeeds, |
| * otherwise call super.getClientArea(). See bug 33659. |
| */ |
| if (workArea != null) return workArea; |
| } |
| return super.getClientArea(); |
| } |
| |
| Rectangle getBoundsInPixels () { |
| checkDevice (); |
| int monitorCount; |
| Rectangle bounds = new Rectangle(0, 0, 0, 0); |
| int maxWidth = 0, maxHeight = 0; |
| if (GTK.GTK_VERSION >= OS.VERSION(3, 22, 0)) { |
| long display = GDK.gdk_display_get_default (); |
| monitorCount = GDK.gdk_display_get_n_monitors (display); |
| if (monitorCount > 0) { |
| for (int i = 0; i < monitorCount; i++) { |
| long monitor = GDK.gdk_display_get_monitor(display, i); |
| GdkRectangle dest = new GdkRectangle (); |
| GDK.gdk_monitor_get_geometry (monitor, dest); |
| if ((dest.x + dest.width) > maxWidth) maxWidth = dest.x + dest.width; |
| if ((dest.y + dest.height) > maxHeight) maxHeight = dest.y + dest.height; |
| } |
| bounds.width = maxWidth; |
| bounds.height = maxHeight; |
| return bounds; |
| } |
| } else { |
| long screen = GDK.gdk_screen_get_default(); |
| monitorCount = GDK.gdk_screen_get_n_monitors(screen); |
| if (monitorCount > 0) { |
| for (int i = 0; i < monitorCount; i++) { |
| GdkRectangle dest = new GdkRectangle (); |
| GDK.gdk_screen_get_monitor_geometry (screen, i, dest); |
| if ((dest.x + dest.width) > maxWidth) maxWidth = dest.x + dest.width; |
| if ((dest.y + dest.height) > maxHeight) maxHeight = dest.y + dest.height; |
| } |
| bounds.width = maxWidth; |
| bounds.height = maxHeight; |
| return bounds; |
| } |
| } |
| if (GTK.GTK4) { |
| return new Rectangle (0, 0, 0, 0); |
| } else { |
| return new Rectangle (0, 0, GDK.gdk_screen_width (), GDK.gdk_screen_height ()); |
| } |
| } |
| |
| /** |
| * Returns the display which the currently running thread is |
| * the user-interface thread for, or null if the currently |
| * running thread is not a user-interface thread for any display. |
| * |
| * @return the current display |
| */ |
| public static Display getCurrent () { |
| return findDisplay (Thread.currentThread ()); |
| } |
| |
| int getCaretBlinkTime () { |
| // checkDevice (); |
| long settings = GTK.gtk_settings_get_default (); |
| if (settings == 0) return 500; |
| int [] buffer = new int [1]; |
| OS.g_object_get (settings, GTK.gtk_cursor_blink, buffer, 0); |
| if (buffer [0] == 0) return 0; |
| OS.g_object_get (settings, GTK.gtk_cursor_blink_time, buffer, 0); |
| if (buffer [0] == 0) return 500; |
| /* |
| * By experimentation, GTK application don't use the whole |
| * blink cycle time. Instead, they divide up the time, using |
| * an effective blink rate of about 1/2 the total time. |
| */ |
| return buffer [0] / 2; |
| } |
| |
| long getClosure (int id) { |
| if (closures [id] != 0) OS.g_closure_unref (closures [id]); |
| closures [id] = OS.g_cclosure_new (closuresProc [id], id, 0); |
| OS.g_closure_ref (closures [id]); |
| OS.g_closure_sink (closures [id]); |
| closuresCount [id] = 0; |
| return closures [id]; |
| } |
| |
| /** |
| * Returns the control which the on-screen pointer is currently |
| * over top of, or null if it is not currently over one of the |
| * controls built by the currently running application. |
| * |
| * @return the control under the cursor or <code>null</code> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public Control getCursorControl () { |
| checkDevice(); |
| int[] x = new int[1], y = new int[1]; |
| long handle = 0; |
| long [] user_data = new long [1]; |
| long gdkResource; |
| if (GTK.GTK4) { |
| double[] xDouble = new double [1], yDouble = new double [1]; |
| gdkResource = gdk_device_get_surface_at_position (xDouble, yDouble); |
| x[0] = (int) xDouble[0]; |
| y[0] = (int) yDouble[0]; |
| } else { |
| gdkResource = gdk_device_get_window_at_position (x,y); |
| } |
| if (gdkResource != 0) { |
| if (GTK.GTK4) { |
| // TODO: GTK4 need to retrieve handle |
| } else { |
| GDK.gdk_window_get_user_data (gdkResource, user_data); |
| } |
| handle = user_data [0]; |
| } else { |
| /* |
| * Feature in GTK. gdk_window_at_pointer() will not return a window |
| * if the pointer is over a foreign embedded window. The fix is to use |
| * XQueryPointer to find the containing GDK window. |
| */ |
| if (!OS.isX11()) return null; |
| long gdkDisplay = GDK.gdk_display_get_default(); |
| if (OS.isX11()) { |
| GDK.gdk_x11_display_error_trap_push(gdkDisplay); |
| } |
| int[] unusedInt = new int[1]; |
| long [] unusedPtr = new long [1], buffer = new long [1]; |
| long xWindow, xParent = OS.XDefaultRootWindow (xDisplay); |
| do { |
| if (OS.XQueryPointer (xDisplay, xParent, unusedPtr, buffer, unusedInt, unusedInt, unusedInt, unusedInt, unusedInt) == 0) { |
| handle = 0; |
| break; |
| } |
| if ((xWindow = buffer [0]) != 0) { |
| xParent = xWindow; |
| long gdkWindow = GDK.gdk_x11_window_lookup_for_display(gdkDisplay, xWindow); |
| if (gdkWindow != 0) { |
| GDK.gdk_window_get_user_data (gdkWindow, user_data); |
| if (user_data[0] != 0) handle = user_data[0]; |
| } |
| } |
| } while (xWindow != 0); |
| if (OS.isX11()) { |
| GDK.gdk_x11_display_error_trap_pop_ignored(gdkDisplay); |
| } |
| } |
| if (handle == 0) return null; |
| do { |
| Widget widget = getWidget (handle); |
| if (widget != null && widget instanceof Control) { |
| Control control = (Control) widget; |
| if (control.isEnabled ()) return control; |
| } |
| } while ((handle = GTK.gtk_widget_get_parent (handle)) != 0); |
| return null; |
| } |
| |
| 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); |
| } |
| |
| /** |
| * 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() { |
| return DPIUtil.autoScaleDown(getCursorLocationInPixels()); |
| } |
| |
| Point getCursorLocationInPixels() { |
| checkDevice(); |
| |
| int[] x = new int[1], y = new int[1]; |
| if (GTK.GTK4) { |
| double[] xDouble = new double[1], yDouble = new double[1]; |
| |
| getPointerPosition(xDouble, yDouble); |
| x[0] = (int)xDouble[0]; |
| y[0] = (int)yDouble[0]; |
| } else { |
| getWindowPointerPosition(0, x, y, null); |
| |
| /* |
| * Wayland feature: There is no global x/y coordinates in Wayland for security measures, so they |
| * all return relative coordinates dependant to the root window. If there is a popup window (type SWT.ON_TOP), |
| * the return position is relative to the new popup window and not relative to the parent if its |
| * active. Using that as an offset and adding all parent shell relative coordinates will give the |
| * user the correct mouse position in Wayland. This only supports popups that are type |
| * SWT.ON_TOP as any other type of window is not tied to the parent window through |
| * a subsurface. There is currently no support for global coordinates |
| * in Wayland. See Bug 514483. |
| */ |
| if (!OS.isX11() && activeShell != null) { |
| Shell tempShell = activeShell; |
| int [] offsetX = new int [1], offsetY = new int [1]; |
| while (tempShell.getParent() != null) { |
| GTK.gtk_window_get_position(tempShell.shellHandle, offsetX, offsetY); |
| x[0]+= offsetX[0]; |
| y[0]+= offsetY[0]; |
| tempShell = tempShell.getParent().getShell(); |
| } |
| } |
| } |
| |
| return new Point(x[0], y[0]); |
| } |
| |
| /** |
| * Returns an array containing the recommended cursor sizes. |
| * |
| * @return the array of cursor sizes |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 3.0 |
| */ |
| public Point [] getCursorSizes () { |
| checkDevice (); |
| return new Point [] {new Point (16, 16), new Point (32, 32)}; |
| } |
| |
| /** |
| * Returns the application defined property of the receiver |
| * with the specified name, or null if it has not been set. |
| * <p> |
| * Applications may have associated arbitrary objects with the |
| * receiver in this fashion. If the objects stored in the |
| * properties need to be notified when the display is disposed |
| * of, it is the application's responsibility 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 (DISPATCH_EVENT_KEY)) { |
| return dispatchEvents; |
| } |
| if (key.equals (GET_MODAL_DIALOG)) { |
| return modalDialog; |
| } |
| if (key.equals (GET_DIRECTION_PROC_KEY)) { |
| return new LONG (setDirectionProc); |
| } |
| if (key.equals (GET_EMISSION_PROC_KEY)) { |
| return new LONG (emissionProc); |
| } |
| 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; |
| } |
| |
| long gtk_fixed_get_type () { |
| return fixed_type; |
| } |
| |
| long gtk_cell_renderer_text_get_type () { |
| return text_renderer_type; |
| } |
| |
| long gtk_cell_renderer_pixbuf_get_type () { |
| return pixbuf_renderer_type; |
| } |
| |
| long gtk_cell_renderer_toggle_get_type () { |
| return toggle_renderer_type; |
| } |
| |
| String gtk_css_create_css_color_string (String background, String foreground, int property) { |
| switch (property) { |
| case SWT.FOREGROUND: |
| if (foreground != null && background != null) { |
| return foreground + "\n" + background; |
| } else if (foreground != null) { |
| return foreground; |
| } else { |
| return ""; |
| } |
| case SWT.BACKGROUND: |
| if (foreground != null && background != null) { |
| return background + "\n" + foreground; |
| } else if (background != null) { |
| return background; |
| } else { |
| return ""; |
| } |
| default: |
| return ""; |
| } |
| } |
| |
| /** |
| * This method allows for parsing of background colors from a GTK CSS string. |
| * It allows for specific search input, such as a selector or tag, or for parsing |
| * the first (and usually only) background color in a given GtkCssProvider. |
| * |
| * For example: given the string GtkWidget {background-color: rgba(255, 0, 0, 255);} |
| * this method will return a GdkRGBA object with the color red. Supported formats |
| * include "background-color" and just "background". |
| * |
| * @param css a CSS being parsed |
| * @param precise a String representation of a selector to search for, or NULL if |
| * the entire GtkCssProvider is to be parsed |
| * |
| * @return a GdkRGBA object representing the background color, or COLOR_WIDGET_BACKGROUND |
| * if the background color could not be parsed or isn't set |
| */ |
| GdkRGBA gtk_css_parse_background (String css, String precise) { |
| String shortOutput; |
| int startIndex; |
| GdkRGBA rgba = new GdkRGBA (); |
| if (css.isEmpty()) return COLOR_WIDGET_BACKGROUND_RGBA; |
| String searched = ""; |
| /* |
| * This section allows for finer searching: for example |
| * specifying precise as null will cause the whole GtkCssProvider |
| * to be searched and return the first background color value. |
| * |
| * Specifying a string for precise causes only the subset of the |
| * GtkCssProvider to be searched, provided that precise is a subset |
| * of the provider. |
| */ |
| if (precise != null) { |
| if (css.contains(precise)) { |
| searched = css.substring(css.indexOf(precise)); |
| } |
| } else { |
| searched = css; |
| } |
| if (searched.isEmpty()) { |
| return COLOR_WIDGET_BACKGROUND_RGBA; |
| } |
| |
| /* Although we only set the property "background-color", we can handle |
| * the "background" property as well. We check for either of these cases |
| * and extract a GdkRGBA object from the parsed CSS string. |
| */ |
| if (searched.contains ("background-color:")) { |
| startIndex = searched.indexOf ("background-color:"); |
| shortOutput = searched.substring (startIndex + 18); |
| rgba = gtk_css_property_to_rgba (shortOutput); |
| } else if (searched.contains ("background:")) { |
| startIndex = searched.indexOf ("background:"); |
| shortOutput = searched.substring (startIndex + 13); |
| rgba = gtk_css_property_to_rgba (shortOutput); |
| } |
| return rgba; |
| } |
| |
| String gtk_css_provider_to_string (long provider) { |
| // Fetch the CSS in char/string format from the provider. |
| if (provider == 0) { |
| return ""; |
| } |
| long str = GTK.gtk_css_provider_to_string(provider); |
| if (str == 0) return ""; |
| int length = C.strlen (str); |
| byte [] buffer = new byte [length]; |
| C.memmove (buffer, str, length); |
| OS.g_free(str); |
| return new String (Converter.mbcsToWcs (buffer)); |
| } |
| |
| /** |
| * This method allows for parsing of foreground colors from a GTK CSS string. |
| * It allows for specific search input, such as a selector or tag, or for parsing |
| * the first (and usually only) foreground color in a given GtkCssProvider. |
| * |
| * For example: given the string GtkWidget {color: rgba(255, 0, 0, 255);} |
| * this method will return a GdkRGBA object with the color red. |
| * |
| * @param css a CSS representation of the gtk theme |
| * @param precise a String representation of a selector to search for, or NULL if |
| * the entire GtkCssProvider is to be parsed |
| * |
| * @return a GdkRGBA object representing the foreground color or COLOR_WIDGET_FOREGROUND |
| * if the foreground color could not be parsed or isn't set |
| */ |
| GdkRGBA gtk_css_parse_foreground (String css, String precise) { |
| if (css.isEmpty()) return COLOR_WIDGET_FOREGROUND_RGBA; |
| GdkRGBA rgba = new GdkRGBA (); |
| String searched = ""; |
| /* |
| * This section allows for finer searching: for example |
| * specifying precise as null will cause the whole GtkCssProvider |
| * to be searched and return the first foreground color value. |
| * |
| * Specifying a string for precise causes only the subset of the |
| * GtkCssProvider to be searched, provided that precise is a subset |
| * of the provider. |
| */ |
| if (precise != null) { |
| if (css.contains(precise)) { |
| searched = css.substring(css.indexOf(precise)); |
| } |
| } else { |
| searched = css; |
| } |
| if (searched.isEmpty()) { |
| return COLOR_WIDGET_FOREGROUND_RGBA; |
| } |
| /* |
| * Because background-color and color have overlapping characters, |
| * a simple String.contains() check will not suffice. This means |
| * that a more encompassing regex is needed to capture "pure" color |
| * properties and filter out things like background-color, border-color, |
| * etc. |
| */ |
| Matcher m = colorPattern.matcher(searched); |
| if (m.find()) { |
| String shortOutput = m.group(1); |
| rgba = gtk_css_property_to_rgba(shortOutput); |
| } else { |
| return COLOR_WIDGET_FOREGROUND_RGBA; |
| } |
| return rgba; |
| } |
| |
| /** |
| * This method parses a string representation of a color |
| * and returns a GdkRGBA object of that color. |
| * |
| * Supported formats: |
| * -a standard X11 color |
| * -a hex value in the form "#rgb", "#rrggbb", "#rrrgggbbb" or "rrrrggggbbbb" |
| * -an RGB color in the for "rgb(r,g,b)" |
| * -an RGBA color in the form "rgba(r,g,b,a)" |
| * |
| * @param property a String representation of the color |
| * |
| * @return a GdkRGBA object representing the color, or transparent (empty GdkRGBA) |
| * if the color could not be parsed |
| */ |
| GdkRGBA gtk_css_property_to_rgba(String property) { |
| GdkRGBA rgba = new GdkRGBA (); |
| String [] propertyParsed = new String [1]; |
| //Note that we still need to remove the ";" character from the input string |
| propertyParsed = property.split (";"); |
| GDK.gdk_rgba_parse (rgba, Converter.wcsToMbcs (propertyParsed[0], true)); |
| return rgba; |
| } |
| |
| /** |
| * In GdkRGBA, values are a double between 0-1. In CSS, |
| * values are integers between 0-255 for r, g, and b. |
| * Alpha is still a double between 0-1. |
| * |
| * The final CSS format is: rgba(int, int, int, double) |
| * Due to this, there is a slight loss of precision. |
| * Setting/getting with CSS *might* yield slight differences. |
| * |
| * @param rgba a GdkRGBA object containing the color to be parsed |
| * or NULL |
| * |
| * @return a String representation of the color or COLOR_WIDGET_BACKGROUND |
| * if NULL is specified as a parameter |
| */ |
| String gtk_rgba_to_css_string (GdkRGBA rgba) { |
| /* |
| * In GdkRGBA, values are a double between 0-1. |
| * In CSS, values are integers between 0-255 for r, g, and b. |
| * Alpha is still a double between 0-1. |
| * The final CSS format is: rgba(int, int, int, double) |
| * Due to this, there is a slight loss of precision. |
| * Setting/getting with CSS *might* yield slight differences. |
| */ |
| GdkRGBA toConvert; |
| if (rgba != null) { |
| toConvert = rgba; |
| } else { |
| // If we have a null RGBA, set it to the default COLOR_WIDGET_BACKGROUND. |
| toConvert = COLOR_WIDGET_BACKGROUND_RGBA; |
| } |
| long str = GDK.gdk_rgba_to_string (toConvert); |
| int length = C.strlen (str); |
| byte [] buffer = new byte [length]; |
| C.memmove (buffer, str, length); |
| OS.g_free(str); |
| return new String (Converter.mbcsToWcs (buffer)); |
| } |
| |
| /** |
| * Gets the name of the widget in String format. |
| * |
| * @param handle a pointer to the GtkWidget resource |
| * |
| * @return a String representation of the widget's name |
| */ |
| String gtk_widget_get_name(long handle) { |
| long str = GTK.gtk_widget_get_name (handle); |
| String name; |
| if (str == 0) { |
| name = "*"; |
| } else { |
| int length = C.strlen (str); |
| byte [] buffer = new byte [length]; |
| C.memmove (buffer, str, length); |
| name = new String (Converter.mbcsToWcs (buffer)); |
| } |
| return name; |
| } |
| |
| /** |
| * Gets the CSS name of the widget provided. This |
| * only works on GTK3.20+. |
| * |
| * @param handle a pointer to the GtkWidget resource |
| * |
| * @return a String representation of the widget's CSS name |
| */ |
| String gtk_widget_class_get_css_name(long handle) { |
| long str = GTK.gtk_widget_class_get_css_name (GTK.GTK_WIDGET_GET_CLASS(handle)); |
| String name; |
| if (str == 0) { |
| name = "*"; |
| } else { |
| int length = C.strlen (str); |
| byte [] buffer = new byte [length]; |
| C.memmove (buffer, str, length); |
| name = new String (Converter.mbcsToWcs (buffer)); |
| } |
| return name; |
| } |
| |
| /** |
| * Returns the default display. One is created (making the |
| * thread that invokes this method its user-interface thread) |
| * if it did not already exist. |
| * |
| * @return the default display |
| */ |
| public static Display getDefault () { |
| synchronized (Device.class) { |
| if (Default == null) Default = new Display (); |
| return Default; |
| } |
| } |
| |
| static boolean isValidClass (Class<?> clazz) { |
| String name = clazz.getName (); |
| int index = name.lastIndexOf ('.'); |
| return name.substring (0, index + 1).equals (PACKAGE_PREFIX); |
| } |
| |
| /** |
| * Returns the 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 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 (); |
| int [] buffer = new int [1]; |
| long settings = GTK.gtk_settings_get_default (); |
| OS.g_object_get (settings, GTK.gtk_alternative_button_order, buffer, 0); |
| return buffer [0] == 1 ? SWT.LEFT : SWT.RIGHT; |
| } |
| |
| /** |
| * Returns the longest duration, in milliseconds, between |
| * two mouse button clicks that will be considered a |
| * <em>double click</em> by the underlying operating system. |
| * |
| * @return the double click time |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public int getDoubleClickTime () { |
| checkDevice (); |
| long settings = GTK.gtk_settings_get_default (); |
| int [] buffer = new int [1]; |
| OS.g_object_get (settings, GTK.gtk_double_click_time, buffer, 0); |
| return buffer [0]; |
| } |
| |
| /** |
| * 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; |
| } |
| if (activeShell == null) return null; |
| long shellHandle = activeShell.shellHandle; |
| long handle = GTK.gtk_window_get_focus (shellHandle); |
| if (handle == 0) return null; |
| do { |
| Widget widget = getWidget (handle); |
| if (widget != null && widget instanceof Control) { |
| Control control = (Control) widget; |
| return control.isEnabled () ? control : null; |
| } |
| } while ((handle = GTK.gtk_widget_get_parent (handle)) != 0); |
| return null; |
| } |
| |
| /** |
| * Returns true when the high contrast mode is enabled. |
| * Otherwise, false is returned. |
| * <p> |
| * Note: This operation is a hint and is not supported on |
| * platforms that do not have this concept. |
| * </p> |
| * |
| * @return the high contrast mode |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 3.0 |
| */ |
| public boolean getHighContrast () { |
| checkDevice (); |
| return false; |
| } |
| |
| @Override |
| public int getDepth () { |
| checkDevice (); |
| if (GTK.GTK4) { |
| // Bit depth is always 32 in GTK4 |
| return 32; |
| } else { |
| long screen = GDK.gdk_screen_get_default(); |
| long visual = GDK.gdk_screen_get_system_visual(screen); |
| return GDK.gdk_visual_get_depth(visual); |
| } |
| } |
| |
| /** |
| * 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 (); |
| return getDepth (); |
| } |
| |
| /** |
| * Returns an array containing the recommended icon sizes. |
| * |
| * @return the array of icon sizes |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see Decorations#setImages(Image[]) |
| * |
| * @since 3.0 |
| */ |
| public Point [] getIconSizes () { |
| checkDevice (); |
| return new Point [] {new Point (16, 16), new Point (32, 32)}; |
| } |
| |
| /** |
| * Returns <code>true</code> if the current OS theme has a dark appearance, else |
| * returns <code>false</code>. |
| * <p> |
| * Note: This operation is a hint and is not supported on platforms that do not |
| * have this concept. |
| * </p> |
| * <p> |
| * Note: Windows 10 onwards users can separately configure the theme for OS and |
| * Application level and this can be read from the Windows registry. Since the |
| * application needs to honor the application level theme, this API reads the |
| * Application level theme setting. |
| * </p> |
| * |
| * @return <code>true</code> if the current OS theme has a dark appearance, else |
| * returns <code>false</code>. |
| * |
| * @since 3.112 |
| */ |
| public static boolean isSystemDarkTheme () { |
| return themeDark; |
| } |
| |
| int getLastEventTime () { |
| return lastEventTime; |
| } |
| |
| int getMessageCount () { |
| return synchronizer.getMessageCount (); |
| } |
| |
| Dialog getModalDialog () { |
| return modalDialog; |
| } |
| |
| /** |
| * Returns the work area, an EWMH property to store the size |
| * and position of the screen not covered by dock and panel |
| * windows. See http://freedesktop.org/Standards/wm-spec. |
| */ |
| Rectangle getWorkArea() { |
| if (OS.IsWin32) { |
| return null; |
| } |
| byte[] name = Converter.wcsToMbcs ("_NET_WORKAREA", true); //$NON-NLS-1$ |
| long atom = GDK.gdk_atom_intern (name, true); |
| if (atom == GDK.GDK_NONE) return null; |
| long [] actualType = new long [1]; |
| int[] actualFormat = new int[1]; |
| int[] actualLength = new int[1]; |
| long [] data = new long [1]; |
| if (!GDK.gdk_property_get (GDK.gdk_get_default_root_window(), atom, GDK.GDK_NONE, 0, 16, 0, actualType, actualFormat, actualLength, data)) { |
| return null; |
| } |
| Rectangle result = null; |
| if (data [0] != 0) { |
| if (actualLength [0] == 16) { |
| int values [] = new int [4]; |
| C.memmove (values, data[0], 16); |
| result = new Rectangle (values [0],values [1],values [2],values [3]); |
| } else if (actualLength [0] == 32) { |
| long values [] = new long [4]; |
| C.memmove (values, data[0], 32); |
| result = new Rectangle ((int)values [0],(int)values [1],(int)values [2],(int)values [3]); |
| } |
| OS.g_free (data [0]); |
| } |
| return result; |
| } |
| |
| /** |
| * Returns an array of monitors attached to the device. |
| * |
| * @return the array of monitors |
| * |
| * @since 3.0 |
| */ |
| public Monitor [] getMonitors () { |
| checkDevice (); |
| Monitor [] monitors = null; |
| Rectangle workArea = DPIUtil.autoScaleDown (getWorkArea ()); |
| if (GTK.GTK_VERSION >= OS.VERSION(3, 22, 0)) { |
| long display = GDK.gdk_display_get_default (); |
| if (display != 0) { |
| int monitorCount = GDK.gdk_display_get_n_monitors (display); |
| if (monitorCount > 0) { |
| monitors = new Monitor [monitorCount]; |
| GdkRectangle dest = new GdkRectangle (); |
| for (int i = 0; i < monitorCount; i++) { |
| long gdkMonitor = GDK.gdk_display_get_monitor(display, i); |
| GDK.gdk_monitor_get_geometry (gdkMonitor, dest); |
| Monitor monitor = new Monitor (); |
| monitor.handle = i; |
| monitor.x = DPIUtil.autoScaleDown (dest.x); |
| monitor.y = DPIUtil.autoScaleDown (dest.y); |
| monitor.width = DPIUtil.autoScaleDown (dest.width); |
| monitor.height = DPIUtil.autoScaleDown (dest.height); |
| if (!OS.isX11()) { |
| int scale_factor = (int) GDK.gdk_monitor_get_scale_factor ( |
| GDK.gdk_display_get_monitor (GDK.gdk_display_get_default (), (int) monitor.handle)); |
| monitor.zoom = scale_factor * 100; |
| } else { |
| monitor.zoom = Display._getDeviceZoom(monitor.handle); |
| } |
| |
| // workarea was defined in GTK 3.4. If present, it will return the best results |
| // since it takes into account per-monitor trim |
| GDK.gdk_monitor_get_workarea (gdkMonitor, dest); |
| monitor.clientX = DPIUtil.autoScaleDown (dest.x); |
| monitor.clientY = DPIUtil.autoScaleDown (dest.y); |
| monitor.clientWidth = DPIUtil.autoScaleDown (dest.width); |
| monitor.clientHeight = DPIUtil.autoScaleDown (dest.height); |
| monitors [i] = monitor; |
| } |
| } |
| } |
| } else { |
| long screen = GDK.gdk_screen_get_default (); |
| if (screen != 0) { |
| int monitorCount = GDK.gdk_screen_get_n_monitors (screen); |
| if (monitorCount > 0) { |
| monitors = new Monitor [monitorCount]; |
| GdkRectangle dest = new GdkRectangle (); |
| for (int i = 0; i < monitorCount; i++) { |
| GDK.gdk_screen_get_monitor_geometry (screen, i, dest); |
| Monitor monitor = new Monitor (); |
| monitor.handle = i; |
| monitor.x = DPIUtil.autoScaleDown (dest.x); |
| monitor.y = DPIUtil.autoScaleDown (dest.y); |
| monitor.width = DPIUtil.autoScaleDown (dest.width); |
| monitor.height = DPIUtil.autoScaleDown (dest.height); |
| monitor.zoom = Display._getDeviceZoom(monitor.handle); |
| |
| // workarea was defined in GTK 3.4. If present, it will return the best results |
| // since it takes into account per-monitor trim |
| GDK.gdk_screen_get_monitor_workarea (screen, i, dest); |
| monitor.clientX = DPIUtil.autoScaleDown (dest.x); |
| monitor.clientY = DPIUtil.autoScaleDown (dest.y); |
| monitor.clientWidth = DPIUtil.autoScaleDown (dest.width); |
| monitor.clientHeight = DPIUtil.autoScaleDown (dest.height); |
| monitors [i] = monitor; |
| } |
| } |
| } |
| } |
| |
| if (monitors == null) { |
| /* No multimonitor support detected, default to one monitor */ |
| Monitor monitor = new Monitor (); |
| Rectangle bounds = getBounds (); |
| monitor.x = bounds.x; |
| monitor.y = bounds.y; |
| monitor.width = bounds.width; |
| monitor.height = bounds.height; |
| if (workArea != null) { |
| monitor.clientX = workArea.x; |
| monitor.clientY = workArea.y; |
| monitor.clientWidth = workArea.width; |
| monitor.clientHeight = workArea.height; |
| } else { |
| monitor.clientX = monitor.x; |
| monitor.clientY = monitor.y; |
| monitor.clientWidth = monitor.width; |
| monitor.clientHeight = monitor.height; |
| } |
| monitors = new Monitor [] { monitor }; |
| } |
| return monitors; |
| } |
| |
| /** |
| * Returns the primary monitor for that device. |
| * |
| * @return the primary monitor |
| * |
| * @since 3.0 |
| */ |
| public Monitor getPrimaryMonitor () { |
| //Developer note, for testing see: |
| //org.eclipse.swt.tests.junit.Test_org_eclipse_swt_widgets_Display.test_getPrimaryMonitor() |
| |
| checkDevice (); |
| Monitor [] monitors = getMonitors (); |
| int primaryMonitorIndex = 0; |
| |
| //attempt to find actual primary monitor if one is configured: |
| if (GTK.GTK_VERSION >= OS.VERSION(3, 22, 0)) { |
| long display = GDK.gdk_display_get_default(); |
| long monitor = GDK.gdk_display_get_primary_monitor(display); |
| long toCompare; |
| for (int i = 0; i < monitors.length; i++) { |
| toCompare = GDK.gdk_display_get_monitor(display, i); |
| if (toCompare == monitor) { |
| return monitors[i]; |
| } |
| } |
| } else { |
| long screen = GDK.gdk_screen_get_default (); |
| if (screen != 0) { |
| //if no primary monitor is configured by the user, this returns 0. |
| primaryMonitorIndex = GDK.gdk_screen_get_primary_monitor (screen); |
| } |
| } |
| return monitors [primaryMonitorIndex]; |
| } |
| |
| |
| /** |
| * 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 < widgetTable.length; i++) { |
| Widget widget = widgetTable [i]; |
| if (!(widget instanceof Shell)) { |
| continue; |
| } |
| if (!widget.isDisposed()) { |
| int j = 0; |
| while (j < index) { |
| if (result [j] == widget) 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) widget; |
| } |
| } else { |
| // bug 532632: somehow widgetTable got corrupted and we have disposed |
| // shell entries in the table (at least one). |
| |
| // We don't throw an error here because it was not broken here, but |
| // we at least try to report an error (we have no logging context). |
| System.err.println ("SWT ERROR: disposed shell detected in the table" + debugInfoForIndex(i)); |
| |
| // As of today widgetTable contains *four* entries for the *same* |
| // Shell instance. If we found one broken, there can be others... |
| // So we clean here all the occurencies of the leaked shell. |
| for (int j = i; j < widgetTable.length; j++) { |
| if(widgetTable[j] == widget) { |
| widgetTable[j] = null; |
| } |
| } |
| } |
| } |
| 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 (); |
| GdkRGBA gdkRGBA = null; |
| switch (id) { |
| case SWT.COLOR_LINK_FOREGROUND: gdkRGBA = copyRGBA(COLOR_LINK_FOREGROUND_RGBA); break; |
| case SWT.COLOR_INFO_FOREGROUND: gdkRGBA = copyRGBA(COLOR_INFO_FOREGROUND_RGBA); break; |
| case SWT.COLOR_INFO_BACKGROUND: gdkRGBA = copyRGBA(COLOR_INFO_BACKGROUND_RGBA); break; |
| case SWT.COLOR_TITLE_FOREGROUND: gdkRGBA = copyRGBA(COLOR_TITLE_FOREGROUND_RGBA); break; |
| case SWT.COLOR_TITLE_BACKGROUND: gdkRGBA = copyRGBA(COLOR_TITLE_BACKGROUND_RGBA); break; |
| case SWT.COLOR_TITLE_BACKGROUND_GRADIENT: gdkRGBA = copyRGBA(COLOR_TITLE_BACKGROUND_GRADIENT_RGBA); break; |
| case SWT.COLOR_TITLE_INACTIVE_FOREGROUND: gdkRGBA = copyRGBA(COLOR_TITLE_INACTIVE_FOREGROUND_RGBA); break; |
| case SWT.COLOR_TITLE_INACTIVE_BACKGROUND: gdkRGBA = copyRGBA(COLOR_TITLE_INACTIVE_BACKGROUND_RGBA); break; |
| case SWT.COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT: gdkRGBA = copyRGBA(COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT_RGBA); break; |
| case SWT.COLOR_WIDGET_DARK_SHADOW: gdkRGBA = copyRGBA(COLOR_WIDGET_DARK_SHADOW_RGBA); break; |
| case SWT.COLOR_WIDGET_NORMAL_SHADOW: gdkRGBA = copyRGBA(COLOR_WIDGET_NORMAL_SHADOW_RGBA); break; |
| case SWT.COLOR_WIDGET_LIGHT_SHADOW: gdkRGBA = copyRGBA(COLOR_WIDGET_LIGHT_SHADOW_RGBA); break; |
| case SWT.COLOR_WIDGET_HIGHLIGHT_SHADOW: gdkRGBA = copyRGBA(COLOR_WIDGET_HIGHLIGHT_SHADOW_RGBA); break; |
| case SWT.COLOR_WIDGET_BACKGROUND: gdkRGBA = copyRGBA(COLOR_WIDGET_BACKGROUND_RGBA); break; |
| case SWT.COLOR_WIDGET_FOREGROUND: gdkRGBA = copyRGBA(COLOR_WIDGET_FOREGROUND_RGBA); break; |
| case SWT.COLOR_WIDGET_BORDER: gdkRGBA = copyRGBA(COLOR_WIDGET_BORDER_RGBA); break; |
| case SWT.COLOR_LIST_FOREGROUND: gdkRGBA = copyRGBA(COLOR_LIST_FOREGROUND_RGBA); break; |
| case SWT.COLOR_LIST_BACKGROUND: gdkRGBA = copyRGBA(COLOR_LIST_BACKGROUND_RGBA); break; |
| case SWT.COLOR_LIST_SELECTION: gdkRGBA = copyRGBA(COLOR_LIST_SELECTION_RGBA); break; |
| case SWT.COLOR_LIST_SELECTION_TEXT: gdkRGBA = copyRGBA(COLOR_LIST_SELECTION_TEXT_RGBA); break; |
| case SWT.COLOR_WIDGET_DISABLED_FOREGROUND: gdkRGBA = copyRGBA(COLOR_WIDGET_DISABLED_FOREGROUND_RGBA); break; |
| case SWT.COLOR_TEXT_DISABLED_BACKGROUND: gdkRGBA = copyRGBA(COLOR_TEXT_DISABLED_BACKGROUND_RGBA); break; |
| default: |
| return super.getSystemColor (id); |
| } |
| if (gdkRGBA == null) return super.getSystemColor (SWT.COLOR_BLACK); |
| return Color.gtk_new (this, gdkRGBA); |
| } |
| |
| /** |
| * Returns the matching standard platform cursor for the given |
| * constant, which should be one of the cursor constants |
| * specified in class <code>SWT</code>. This cursor should |
| * not be free'd because it was allocated by the system, |
| * not the application. A value of <code>null</code> will |
| * be returned if the supplied constant is not an SWT cursor |
| * constant. |
| * |
| * @param id the SWT cursor constant |
| * @return the corresponding cursor or <code>null</code> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see SWT#CURSOR_ARROW |
| * @see SWT#CURSOR_WAIT |
| * @see SWT#CURSOR_CROSS |
| * @see SWT#CURSOR_APPSTARTING |
| * @see SWT#CURSOR_HELP |
| * @see SWT#CURSOR_SIZEALL |
| * @see SWT#CURSOR_SIZENESW |
| * @see SWT#CURSOR_SIZENS |
| * @see SWT#CURSOR_SIZENWSE |
| * @see SWT#CURSOR_SIZEWE |
| * @see SWT#CURSOR_SIZEN |
| * @see SWT#CURSOR_SIZES |
| * @see SWT#CURSOR_SIZEE |
| * @see SWT#CURSOR_SIZEW |
| * @see SWT#CURSOR_SIZENE |
| * @see SWT#CURSOR_SIZESE |
| * @see SWT#CURSOR_SIZESW |
| * @see SWT#CURSOR_SIZENW |
| * @see SWT#CURSOR_UPARROW |
| * @see SWT#CURSOR_IBEAM |
| * @see SWT#CURSOR_NO |
| * @see SWT#CURSOR_HAND |
| * |
| * @since 3.0 |
| */ |
| public Cursor getSystemCursor (int id) { |
| checkDevice (); |
| if (!(0 <= id && id < cursors.length)) return null; |
| if (cursors [id] == null) { |
| cursors [id] = new Cursor (this, id); |
| } |
| return cursors [id]; |
| } |
| |
| /** |
| * Returns the matching standard platform image for the given |
| * constant, which should be one of the icon constants |
| * specified in class <code>SWT</code>. This image should |
| * not be free'd because it was allocated by the system, |
| * not the application. A value of <code>null</code> will |
| * be returned either if the supplied constant is not an |
| * SWT icon constant or if the platform does not define an |
| * image that corresponds to the constant. |
| * |
| * @param id the SWT icon constant |
| * @return the corresponding image or <code>null</code> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see SWT#ICON_ERROR |
| * @see SWT#ICON_INFORMATION |
| * @see SWT#ICON_QUESTION |
| * @see SWT#ICON_WARNING |
| * @see SWT#ICON_WORKING |
| * |
| * @since 3.0 |
| */ |
| public Image getSystemImage (int id) { |
| checkDevice (); |
| switch (id) { |
| case SWT.ICON_ERROR: |
| if (errorImage == null) { |
| errorImage = createImage ("dialog-error"); //$NON-NLS-1$ |
| } |
| return errorImage; |
| case SWT.ICON_INFORMATION: |
| case SWT.ICON_WORKING: |
| if (infoImage == null) { |
| infoImage = createImage ("dialog-information"); //$NON-NLS-1$ |
| } |
| return infoImage; |
| case SWT.ICON_QUESTION: |
| if (questionImage == null) { |
| questionImage = createImage ("dialog-question"); //$NON-NLS-1$ |
| } |
| return questionImage; |
| case SWT.ICON_WARNING: |
| if (warningImage == null) { |
| warningImage = createImage ("dialog-warning"); //$NON-NLS-1$ |
| } |
| return warningImage; |
| } |
| 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; |
| } |
| |
| /** |
| * This method converts from RGB to HSV, from HSV |
| * to HSL (including brightness), from HSL back to HSV |
| * and from HSV back to RGB. In short (ordered 1 - 5): |
| * |
| * 1. RGB -> HSV |
| * 2. HSV -> HSL |
| * 3. HSL -> HSL (with brightness) |
| * 4. HSL -> HSV |
| * 5. HSV -> RGB |
| * |
| * NOTE: hue, saturation, and luminosity are values |
| * from 0 to 1. Brightness can be any number from |
| * 0 to Double.MAX_VALUE, but is only practical |
| * when luminosity and saturation are <= 1. |
| * |
| * The higher the brightness, the lighter a color gets. |
| * Lighter here means "more white", i.e. saturation |
| * and luminosity values of 1.0 means the color is pure white. |
| * |
| * More info on the conversion can be found here: |
| * |
| * https://en.wikipedia.org/wiki/HSL_and_HSV |
| * http://codeitdown.com/hsl-hsb-hsv-color/ |
| * |
| * @param rgba the source GdkRGBA from which RGB values are copied from |
| * @param brightness a value between 0 and Double.MAX_VALUE which modifies the brightness of saturation and luminosity |
| * @return GdkRGBA object with calculated RGB values |
| */ |
| GdkRGBA toGdkRGBA (GdkRGBA rgba, double brightness) { |
| GdkRGBA newRGBA = new GdkRGBA(); |
| newRGBA.alpha = rgba.alpha; |
| |
| // Instantiate hue, saturation, and value doubles for HSV. |
| // Perform the RGB to HSV conversion. |
| double[] hue = new double[1]; |
| double[] saturationHSV = new double[1]; |
| double[] value = new double[1]; |
| |
| if (GTK.GTK4) { |
| float[] h = new float[1]; |
| float[] s = new float[1]; |
| float[] v = new float[1]; |
| GTK.gtk_rgb_to_hsv((float)rgba.red, (float)rgba.green, (float)rgba.blue, h, s, v); |
| hue[0] = (double)h[0]; |
| saturationHSV[0] = (double)s[0]; |
| value[0] = (double)v[0]; |
| } else { |
| GTK.gtk_rgb_to_hsv(rgba.red, rgba.green, rgba.blue, hue, saturationHSV, value); |
| } |
| |
| // Calculate luminosity |
| double luminosity = ((2 - saturationHSV[0]) * value[0]) / 2; |
| |
| // Calculate saturation |
| double saturationHSL = saturationHSV[0] * value[0]; |
| saturationHSL /= (luminosity <= 1) ? luminosity : 2 - luminosity; |
| |
| // Calculate saturation and luminosity with brightness. |
| saturationHSL = Math.max(0f, Math.min(1f, saturationHSL * brightness)); |
| luminosity = Math.max(0f, Math.min(1f, luminosity * brightness)); |
| |
| // Convert from HSL (with brightness) back to HSV |
| luminosity *= 2; |
| saturationHSL *= luminosity <= 1 ? luminosity : 2 - luminosity; |
| value[0] = (luminosity + saturationHSL) / 2; |
| saturationHSV[0] = (2 * saturationHSL) / (luminosity + saturationHSL); |
| |
| // Convert from HSV back to RGB and return the GdkRGBA object |
| if (GTK.GTK4) { |
| float[] r = new float[1]; |
| float[] g = new float[1]; |
| float[] b = new float[1]; |
| GTK.gtk_hsv_to_rgb((float)hue[0], (float)saturationHSV[0], (float)value[0], r, g, b); |
| newRGBA.red = r[0]; |
| newRGBA.green = g[0]; |
| newRGBA.blue = b[0]; |
| } else { |
| GTK.gtk_hsv_to_rgb(hue[0], saturationHSV[0], value[0], hue, saturationHSV, value); |
| newRGBA.red = hue[0]; |
| newRGBA.green = saturationHSV[0]; |
| newRGBA.blue = value[0]; |
| } |
| |
| return newRGBA; |
| } |
| |
| /** |
| * Calculates original color from RGBA with premultiplied alpha. |
| * |
| * NOTE: Calculating inverse gives a range of possible colors due to rounding that |
| * occurs with integer calculations. However, alpha-blend formula only has the |
| * multiplied component, so all of those inverses are equivalent. |
| */ |
| static int inversePremultipliedColor(int color, int alpha) { |
| if (alpha == 0) return 0; |
| return (255*color + alpha-1) / alpha; |
| } |
| |
| /** |
| * What user sees is a combination of multiple layers. |
| * This is only important when top layer is semi-transparent. |
| */ |
| private static void renderAllBackgrounds(long styleContext, long cairo) { |
| if (!GTK.GTK4) { |
| // GTK4 GtkStyleContext has no concept of parents |
| long parentStyleContext = GTK.gtk_style_context_get_parent (styleContext); |
| if (parentStyleContext != 0) renderAllBackgrounds (parentStyleContext, cairo); |
| } |
| |
| GTK.gtk_render_background (styleContext, cairo, -50, -50, 100, 100); |
| } |
| |
| /** |
| * Background in GTK theme can be more complex then just solid color: |
| * 1) Due to 'background-image', 'background-position', 'background-repeat', etc. |
| * Example: 'tooltip' in 'Ambiance' theme uses 'background-image'. |
| * 2) If background is semi-transparent, user actually sees a combination of layers. |
| * Example: 'tooltip' in 'HighContrast' theme has transparent label. |
| * Both problems are solved by drawing to a temporary image and getting |
| * the color of the pixel in the middle. |
| */ |
| GdkRGBA styleContextEstimateBackgroundColor(long context, int state) { |
| // Render to a temporary image |
| GTK.gtk_style_context_save (context); |
| GTK.gtk_style_context_set_state (context, state); |
| long surface = Cairo.cairo_image_surface_create (Cairo.CAIRO_FORMAT_ARGB32, 1, 1); |
| long cairo = Cairo.cairo_create (surface); |
| renderAllBackgrounds (context, cairo); |
| Cairo.cairo_fill (cairo); |
| Cairo.cairo_surface_flush (surface); |
| byte[] buffer = new byte[4]; |
| C.memmove (buffer, Cairo.cairo_image_surface_get_data(surface), buffer.length); |
| Cairo.cairo_surface_destroy (surface); |
| Cairo.cairo_destroy (cairo); |
| GTK.gtk_style_context_restore (context); |
| |
| // CAIRO_FORMAT_ARGB32 means a-r-g-b order, 1 byte per value. |
| int a = Byte.toUnsignedInt(buffer[3]); |
| int r = Byte.toUnsignedInt(buffer[2]); |
| int g = Byte.toUnsignedInt(buffer[1]); |
| int b = Byte.toUnsignedInt(buffer[0]); |
| |
| // NOTE: cairo uses premultiplied alpha (see CAIRO_FORMAT_ARGB32) |
| GdkRGBA rgba = new GdkRGBA (); |
| rgba.alpha = a / 255f; |
| rgba.red = inversePremultipliedColor(r, a) / 255f; |
| rgba.green = inversePremultipliedColor(g, a) / 255f; |
| rgba.blue = inversePremultipliedColor(b, a) / 255f; |
| |
| return rgba; |
| } |
| |
| GdkRGBA copyRGBA (GdkRGBA source) { |
| GdkRGBA retRGBA = new GdkRGBA (); |
| if (source != null) { |
| retRGBA.alpha = source.alpha; |
| retRGBA.red = source.red; |
| retRGBA.green = source.green; |
| retRGBA.blue = source.blue; |
| } |
| return retRGBA; |
| } |
| |
| void initializeSystemColors () { |
| COLOR_WIDGET_DARK_SHADOW_RGBA = new GdkRGBA (); |
| COLOR_WIDGET_DARK_SHADOW_RGBA.alpha = 1.0; |
| |
| // Initialize and create a list of X11 named colors |
| initializeNamedColorList(); |
| |
| // Load Widget colors first, because 'COLOR_WIDGET_BACKGROUND_RGBA' |
| // can be used as substitute for other missing colors. |
| long shellContext = GTK.gtk_widget_get_style_context(shellHandle); |
| initializeSystemColorsWidget(shellContext); |
| |
| initializeSystemColorsList(shellContext); |
| initializeSystemColorsTitle(shellContext); |
| initializeSystemColorsLink(); |
| initializeSystemColorsTooltip(); |
| initializeSystemColorsToggleButton(); |
| initializeSystemColorsDisabled(); |
| |
| COLOR_TITLE_FOREGROUND_RGBA = COLOR_LIST_SELECTION_TEXT_RGBA; |
| COLOR_TITLE_BACKGROUND_RGBA = COLOR_LIST_SELECTION_RGBA; |
| COLOR_TITLE_BACKGROUND_GRADIENT_RGBA = toGdkRGBA (COLOR_LIST_SELECTION_RGBA, 1.3); |
| COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT_RGBA = toGdkRGBA (COLOR_TITLE_INACTIVE_BACKGROUND_RGBA, 1.3); |
| } |
| |
| void initializeSystemColorsWidget(long shellContext) { |
| COLOR_WIDGET_FOREGROUND_RGBA = styleContextGetColor (shellContext, GTK.GTK_STATE_FLAG_NORMAL); |
| COLOR_WIDGET_BACKGROUND_RGBA = styleContextEstimateBackgroundColor(shellContext, GTK.GTK_STATE_FLAG_NORMAL); |
| |
| COLOR_WIDGET_LIGHT_SHADOW_RGBA = COLOR_WIDGET_BACKGROUND_RGBA; |
| COLOR_WIDGET_NORMAL_SHADOW_RGBA = toGdkRGBA (COLOR_WIDGET_BACKGROUND_RGBA, 0.7); |
| COLOR_WIDGET_HIGHLIGHT_SHADOW_RGBA = toGdkRGBA (COLOR_WIDGET_BACKGROUND_RGBA, 1.3); |
| } |
| |
| void initializeSystemColorsList(long shellContext) { |
| // Apply temporary styles |
| GTK.gtk_style_context_save (shellContext); |
| GTK.gtk_style_context_add_class(shellContext, GTK.GTK_STYLE_CLASS_VIEW); |
| GTK.gtk_style_context_add_class(shellContext, GTK.GTK_STYLE_CLASS_CELL); |
| GTK.gtk_style_context_invalidate(shellContext); |
| |
| COLOR_LIST_FOREGROUND_RGBA = styleContextGetColor (shellContext, GTK.GTK_STATE_FLAG_NORMAL); |
| COLOR_LIST_BACKGROUND_RGBA = styleContextEstimateBackgroundColor(shellContext, GTK.GTK_STATE_FLAG_NORMAL); |
| |
| /* |
| * Some themes define different selection colors based on whether or not the window is focused, |
| * or in the background. For this reason we use the SELECTED and FOCUSED flag for default selection |
| * colors, and the SELECTED and BACKDROP flags for inactive/unfocused selection colors. |
| * |
| * These colors will be the same for themes that do not define different selection colors based on focus. |
| */ |
| COLOR_LIST_SELECTION_TEXT_RGBA = styleContextGetColor (shellContext, GTK.GTK_STATE_FLAG_SELECTED | GTK.GTK_STATE_FLAG_FOCUSED); |
| COLOR_LIST_SELECTION_RGBA = styleContextEstimateBackgroundColor(shellContext, GTK.GTK_STATE_FLAG_SELECTED | GTK.GTK_STATE_FLAG_FOCUSED); |
| |
| COLOR_LIST_SELECTION_TEXT_INACTIVE_RGBA = styleContextGetColor (shellContext, GTK.GTK_STATE_FLAG_SELECTED | GTK.GTK_STATE_FLAG_BACKDROP); |
| COLOR_LIST_SELECTION_INACTIVE_RGBA = styleContextEstimateBackgroundColor(shellContext, GTK.GTK_STATE_FLAG_SELECTED | GTK.GTK_STATE_FLAG_BACKDROP); |
| |
| // Revert temporary styles |
| GTK.gtk_style_context_restore (shellContext); |
| } |
| |
| void initializeSystemColorsTitle(long shellContext) { |
| long customLabel = OS.g_object_new(GTK.gtk_label_get_type(), 0); |
| OS.g_object_ref_sink(customLabel); |
| |
| // Just use temporary label; this is easier then finding the original label |
| long styleContextLabel = GTK.gtk_widget_get_style_context(customLabel); |
| COLOR_TITLE_INACTIVE_FOREGROUND_RGBA = styleContextGetColor (styleContextLabel, GTK.GTK_STATE_FLAG_INSENSITIVE); |
| // Most Labels inherit background colors of their parent, so use the shell's BG color here |
| COLOR_TITLE_INACTIVE_BACKGROUND_RGBA = styleContextEstimateBackgroundColor(shellContext, GTK.GTK_STATE_FLAG_INSENSITIVE); |
| |
| OS.g_object_unref(customLabel); |
| } |
| |
| private void initializeSystemColorsLink() { |
| /* |
| * Note: GTK has two types of link at least: |
| * |
| * 1) GtkLabel with HTML-like markup |
| * 2) GtkLinkButton |
| * |
| * The 'HighContrast' theme has different colors for these. |
| * GtkLabel is easier to work with, and obtained color matches color in previous SWT versions. |
| */ |
| |
| // The 'Clearlooks-Phenix' theme sets 'color:' for 'window {' css node, so a stand-alone label is not enough |
| long window; |
| if (GTK.GTK4) { |
| window = GTK.gtk_window_new(); |
| } else { |
| window = GTK.gtk_window_new (GTK.GTK_WINDOW_TOPLEVEL); |
| } |
| long label = GTK.gtk_label_new(null); |
| if (GTK.GTK4) { |
| GTK.gtk_window_set_child(window, label); |
| } else { |
| GTK.gtk_container_add(window, label); |
| } |
| |
| long styleContextLink = GTK.gtk_widget_get_style_context (label); |
| COLOR_LINK_FOREGROUND_RGBA = styleContextGetColor (styleContextLink, GTK.GTK_STATE_FLAG_LINK); |
| |
| if (GTK.GTK4) { |
| GTK.gtk_window_destroy(window); |
| } else { |
| GTK.gtk_widget_destroy(window); |
| } |
| } |
| |
| void initializeSystemColorsTooltip() { |
| // Create a temporary tooltip |
| long tooltip = OS.g_object_new(GTK.gtk_tooltip_get_type(), 0); |
| |
| // Add temporary label as custom control into tooltip |
| long customLabel = OS.g_object_new(GTK.gtk_label_get_type(), 0); |
| GTK.gtk_tooltip_set_custom(tooltip, customLabel); |
| |
| // Just use temporary label; this is easier then finding the original label |
| long styleContextLabel = GTK.gtk_widget_get_style_context(customLabel); |
| COLOR_INFO_FOREGROUND_RGBA = styleContextGetColor(styleContextLabel, GTK.GTK_STATE_FLAG_NORMAL); |
| COLOR_INFO_BACKGROUND_RGBA = styleContextEstimateBackgroundColor(styleContextLabel, GTK.GTK_STATE_FLAG_NORMAL); |
| |
| // Cleanup |
| // customLabel is owned by tooltip and will be destroyed automatically |
| OS.g_object_unref(tooltip); |
| } |
| |
| void initializeSystemColorsToggleButton() { |
| // GtkCheckButton and GtkRadioButton use the same colors |
| long button = GTK.gtk_check_button_new(); |
| OS.g_object_ref_sink(button); |
| |
| long styleContextButton = GTK.gtk_widget_get_style_context(button); |
| COLOR_TOGGLE_BUTTON_FOREGROUND_RGBA = styleContextGetColor(styleContextButton, GTK.GTK_STATE_FLAG_NORMAL); |
| |
| OS.g_object_unref(button); |
| } |
| |
| void initializeSystemColorsDisabled() { |
| /* |
| * 'Yaru' theme on Ubuntu 18.10 defines background color for |
| * 'entry:backdrop:disabled' as 'transparent', so parent window's color |
| * will be used. However, SWT doesn't quite expect transparent colors. |
| * The workaround is to use a temporary window as parent. GTK will blend |
| * colors and return non-transparent result. |
| */ |
| long window; |
| if (GTK.GTK4) { |
| window = GTK.gtk_window_new(); |
| } else { |
| window = GTK.gtk_window_new (GTK.GTK_WINDOW_TOPLEVEL); |
| } |
| long entry = GTK.gtk_entry_new (); |
| if (GTK.GTK4) { |
| GTK.gtk_window_set_child(window, entry); |
| } else { |
| GTK.gtk_container_add(window, entry); |
| } |
| |
| long context = GTK.gtk_widget_get_style_context (entry); |
| |
| COLOR_WIDGET_DISABLED_FOREGROUND_RGBA = styleContextGetColor (context, GTK.GTK_STATE_FLAG_INSENSITIVE); |
| COLOR_TEXT_DISABLED_BACKGROUND_RGBA = styleContextEstimateBackgroundColor (context, GTK.GTK_STATE_FLAG_INSENSITIVE); |
| |
| if (GTK.GTK4) { |
| GTK.gtk_window_destroy(window); |
| } else { |
| GTK.gtk_widget_destroy(window); |
| } |
| } |
| |
| GdkRGBA styleContextGetColor(long context, int flag) { |
| /* |
| * Feature in GTK: we need to handle calls to gtk_style_context_get_color() |
| * differently due to changes in GTK3.18+. This solves failing test cases |
| * which started failing after GTK3.16. See Bug 481122 for more info. |
| * Reference: https://blogs.gnome.org/mclasen/2015/11/20/a-gtk-update/ |
| */ |
| GdkRGBA rgba = new GdkRGBA (); |
| if (GTK.GTK4) { |
| GTK.gtk_style_context_get_color(context, rgba); |
| } else { |
| GTK.gtk_style_context_save(context); |
| GTK.gtk_style_context_set_state(context, flag); |
| GTK.gtk_style_context_get_color (context, flag, rgba); |
| GTK.gtk_style_context_restore(context); |
| } |
| return rgba; |
| } |
| |
| /** |
| * Returns the single instance of the system taskBar or null |
| * when there is no system taskBar available for the platform. |
| * |
| * @return the system taskBar or <code>null</code> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 3.6 |
| */ |
| public TaskBar getSystemTaskBar () { |
| checkDevice (); |
| return null; |
| } |
| |
| /** |
| * Returns the single instance of the system tray or null |
| * when there is no system tray available for the platform. |
| * |
| * @return the system tray or <code>null</code> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 3.0 |
| */ |
| public Tray getSystemTray () { |
| checkDevice (); |
| if (tray != null) return tray; |
| return tray = new Tray (this, SWT.NONE); |
| } |
| |
| /** |
| * Returns the user-interface thread for the receiver. |
| * |
| * @return the receiver's user-interface thread |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public Thread getThread () { |
| synchronized (Device.class) { |
| if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED); |
| return thread; |
| } |
| } |
| |
| /** |
| * Returns a boolean indicating whether a touch-aware input device is |
| * attached to the system and is ready for use. |
| * |
| * @return <code>true</code> if a touch-aware input device is detected, or <code>false</code> otherwise |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 3.7 |
| */ |
| public boolean getTouchEnabled() { |
| checkDevice(); |
| return false; |
| } |
| |
| Widget getWidget (long handle) { |
| if (handle == 0) return null; |
| if (lastWidget != null && lastHandle == handle) return lastWidget; |
| long index = OS.g_object_get_qdata (handle, SWT_OBJECT_INDEX) - 1; |
| if (0 <= index && index < widgetTable.length) { |
| lastHandle = handle; |
| return lastWidget = widgetTable [(int)index]; |
| } |
| return null; |
| } |
| |
| long idleProc (long data) { |
| boolean result = runAsyncMessages (false); |
| if (!result) { |
| synchronized (idleLock) { |
| idleHandle = 0; |
| } |
| } |
| return result ? 1 : 0; |
| } |
| |
| /** |
| * 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 (); |
| initializeCallbacks (); |
| initializeSubclasses (); |
| initializeSystemColors (); |
| initializeSystemSettings (); |
| initializeWidgetTable (); |
| initializeSessionManager (); |
| } |
| |
| void initializeCallbacks () { |
| closures = new long [Widget.LAST_SIGNAL]; |
| closuresCount = new int[Widget.LAST_SIGNAL]; |
| closuresProc = new long [Widget.LAST_SIGNAL]; |
| signalIds = new int [Widget.LAST_SIGNAL]; |
| |
| /* Cache signals for GtkWidget */ |
| signalIds [Widget.BUTTON_PRESS_EVENT] = OS.g_signal_lookup (OS.button_press_event, GTK.GTK_TYPE_WIDGET ()); |
| signalIds [Widget.BUTTON_RELEASE_EVENT] = OS.g_signal_lookup (OS.button_release_event, GTK.GTK_TYPE_WIDGET ()); |
| signalIds [Widget.CONFIGURE_EVENT] = OS.g_signal_lookup (OS.configure_event, GTK.GTK_TYPE_WIDGET ()); |
| signalIds [Widget.DELETE_EVENT] = OS.g_signal_lookup (OS.delete_event, GTK.GTK_TYPE_WIDGET ()); |
| signalIds [Widget.ENTER_NOTIFY_EVENT] = OS.g_signal_lookup (OS.enter_notify_event, GTK.GTK_TYPE_WIDGET ()); |
| signalIds [Widget.EVENT_AFTER] = OS.g_signal_lookup (OS.event_after, GTK.GTK_TYPE_WIDGET ()); |
| signalIds [Widget.EXPOSE_EVENT] = OS.g_signal_lookup (OS.draw, GTK.GTK_TYPE_WIDGET ()); |
| signalIds [Widget.EXPOSE_EVENT_INVERSE] = OS.g_signal_lookup (OS.draw, GTK.GTK_TYPE_WIDGET ()); |
| signalIds [Widget.FOCUS] = OS.g_signal_lookup (OS.focus, GTK.GTK_TYPE_WIDGET ()); |
| signalIds [Widget.FOCUS_IN_EVENT] = OS.g_signal_lookup (OS.focus_in_event, GTK.GTK_TYPE_WIDGET ()); |
| signalIds [Widget.FOCUS_OUT_EVENT] = OS.g_signal_lookup (OS.focus_out_event, GTK.GTK_TYPE_WIDGET ()); |
| signalIds [Widget.GRAB_FOCUS] = OS.g_signal_lookup (OS.grab_focus, GTK.GTK_TYPE_WIDGET ()); |
| signalIds [Widget.HIDE] = OS.g_signal_lookup (OS.hide, GTK.GTK_TYPE_WIDGET ()); |
| signalIds [Widget.KEY_PRESS_EVENT] = OS.g_signal_lookup (OS.key_press_event, GTK.GTK_TYPE_WIDGET ()); |
| signalIds [Widget.KEY_RELEASE_EVENT] = OS.g_signal_lookup (OS.key_release_event, GTK.GTK_TYPE_WIDGET ()); |
| signalIds [Widget.LEAVE_NOTIFY_EVENT] = OS.g_signal_lookup (OS.leave_notify_event, GTK.GTK_TYPE_WIDGET ()); |
| signalIds [Widget.MAP] = OS.g_signal_lookup (OS.map, GTK.GTK_TYPE_WIDGET ()); |
| signalIds [Widget.MAP_EVENT] = OS.g_signal_lookup (OS.map_event, GTK.GTK_TYPE_WIDGET ()); |
| signalIds [Widget.MNEMONIC_ACTIVATE] = OS.g_signal_lookup (OS.mnemonic_activate, GTK.GTK_TYPE_WIDGET ()); |
| signalIds [Widget.MOTION_NOTIFY_EVENT] = OS.g_signal_lookup (OS.motion_notify_event, GTK.GTK_TYPE_WIDGET ()); |
| /* |
| * Connect to the "popped-up" signal on GTK3.22+ if the user has specified the |
| * SWT_MENU_LOCATION_DEBUGGING environment variable. |
| */ |
| if (GTK.GTK_VERSION >= OS.VERSION(3, 22, 0) && OS.SWT_MENU_LOCATION_DEBUGGING) { |
| long menuType = GTK.GTK_TYPE_MENU (); |
| OS.g_type_class_ref (menuType); |
| signalIds [Widget.POPPED_UP] = OS.g_signal_lookup (OS.popped_up, menuType); |
| } else { |
| signalIds [Widget.POPPED_UP] = 0; |
| } |
| signalIds [Widget.POPUP_MENU] = OS.g_signal_lookup (OS.popup_menu, GTK.GTK_TYPE_WIDGET ()); |
| signalIds [Widget.REALIZE] = OS.g_signal_lookup (OS.realize, GTK.GTK_TYPE_WIDGET ()); |
| signalIds [Widget.SCROLL_EVENT] = OS.g_signal_lookup (OS.scroll_event, GTK.GTK_TYPE_WIDGET ()); |
| signalIds [Widget.SHOW] = OS.g_signal_lookup (OS.show, GTK.GTK_TYPE_WIDGET ()); |
| signalIds [Widget.SHOW_HELP] = OS.g_signal_lookup (OS.show_help, GTK.GTK_TYPE_WIDGET ()); |
| if (!GTK.GTK4) signalIds [Widget.SIZE_ALLOCATE] = OS.g_signal_lookup (OS.size_allocate, GTK.GTK_TYPE_WIDGET ()); |
| signalIds [Widget.STYLE_UPDATED] = OS.g_signal_lookup (OS.style_updated, GTK.GTK_TYPE_WIDGET ()); |
| signalIds [Widget.UNMAP] = OS.g_signal_lookup (OS.unmap, GTK.GTK_TYPE_WIDGET ()); |
| signalIds [Widget.UNMAP_EVENT] = OS.g_signal_lookup (OS.unmap_event, GTK.GTK_TYPE_WIDGET ()); |
| signalIds [Widget.UNREALIZE] = OS.g_signal_lookup (OS.realize, GTK.GTK_TYPE_WIDGET ()); |
| signalIds [Widget.WINDOW_STATE_EVENT] = OS.g_signal_lookup (OS.window_state_event, GTK.GTK_TYPE_WIDGET ()); |
| |
| if (GTK.GTK4) { |
| snapshotDraw = new Callback (getClass (), "snapshotDrawProc", 2); //$NON-NLS-1$ |
| snapshotDrawProc = snapshotDraw.getAddress (); |
| } |
| |
| windowCallback2 = new Callback (this, "windowProc", 2); //$NON-NLS-1$ |
| windowProc2 = windowCallback2.getAddress (); |
| |
| if (GTK.GTK4) { |
| keyPressReleaseCallback = new Callback (this, "keyPressReleaseProc", long.class, new Type[] { |
| long.class, int.class, int.class, int.class, long.class}); //$NON-NLS-1$ |
| keyPressReleaseProc = keyPressReleaseCallback.getAddress (); |
| |
| /* |
| * Usually GTK4 signals will be connected via g_signal_connect(), |
| * i.e. without closures, but we will assign the closures anyways |
| * just to be safe. |
| */ |
| closuresProc [Widget.KEY_PRESSED] = keyPressReleaseProc; |
| closuresProc [Widget.KEY_RELEASED] = keyPressReleaseProc; |
| |
| focusCallback = new Callback (this, "focusProc", long.class, new Type[] { |
| long.class, long.class}); //$NON-NLS-1$ |
| focusProc = focusCallback.getAddress (); |
| |
| closuresProc [Widget.FOCUS_IN] = focusProc; |
| closuresProc [Widget.FOCUS_OUT] = focusProc; |
| |
| enterMotionScrollCallback = new Callback (this, "enterMotionScrollProc", long.class, new Type[] { |
| long.class, double.class, double.class, long.class}); //$NON-NLS-1$ |
| enterMotionScrollProc = enterMotionScrollCallback.getAddress (); |
| |
| closuresProc [Widget.ENTER] = enterMotionScrollProc; |
| closuresProc [Widget.MOTION] = enterMotionScrollProc; |
| closuresProc [Widget.SCROLL] = enterMotionScrollProc; |
| |
| gesturePressReleaseCallback = new Callback (this, "gesturePressReleaseProc", long.class, new Type[] { |
| long.class, int.class, double.class, double.class, long.class}); //$NON-NLS-1$ |
| gesturePressReleaseProc = gesturePressReleaseCallback.getAddress(); |
| |
| closuresProc [Widget.GESTURE_PRESSED] = gesturePressReleaseProc; |
| closuresProc [Widget.GESTURE_RELEASED] = gesturePressReleaseProc; |
| |
| leaveCallback = new Callback (this, "leaveProc", long.class, new Type[] { |
| long.class, long.class}); //$NON-NLS-1$ |
| leaveProc = leaveCallback.getAddress (); |
| |
| resizeCallback = new Callback (this, "resizeProc", void.class, new Type[] { |
| long.class, int.class, int.class}); //$NON-NLS-1$ |
| resizeProc = resizeCallback.getAddress (); |
| |
| activateCallback = new Callback(this, "activateProc", void.class, new Type[] { |
| long.class, long.class, long.class |
| }); |
| activateProc = activateCallback.getAddress(); |
| |
| closuresProc [Widget.LEAVE] = leaveProc; |
| } |
| |
| notifyCallback = new Callback(this, "notifyProc", long.class, new Type[] { |
| long.class, long.class, long.class}); //$NON-NLS-1$ |
| notifyProc = notifyCallback.getAddress(); |
| |
| closuresProc [Widget.NOTIFY_STATE] = notifyProc; |
| closuresProc [Widget.DPI_CHANGED] = notifyProc; |
| |
| closuresProc [Widget.ACTIVATE] = windowProc2; |
| closuresProc [Widget.ACTIVATE_INVERSE] = windowProc2; |
| closuresProc [Widget.CHANGED] = windowProc2; |
| closuresProc [Widget.CLICKED] = windowProc2; |
| closuresProc [Widget.CLOSE_REQUEST] = windowProc2; |
| closuresProc [Widget.CREATE_MENU_PROXY] = windowProc2; |
| closuresProc [Widget.DAY_SELECTED] = windowProc2; |
| closuresProc [Widget.DAY_SELECTED_DOUBLE_CLICK] = windowProc2; |
| closuresProc [Widget.HIDE] = windowProc2; |
| closuresProc [Widget.GRAB_FOCUS] = windowProc2; |
| closuresProc [Widget.MAP] = windowProc2; |
| closuresProc [Widget.MONTH_CHANGED] = windowProc2; |
| closuresProc [Widget.OUTPUT] = windowProc2; |
| closuresProc [Widget.POPUP_MENU] = windowProc2; |
| closuresProc [Widget.PREEDIT_CHANGED] = windowProc2; |
| closuresProc [Widget.REALIZE] = windowProc2; |
| closuresProc [Widget.SELECT] = windowProc2; |
| closuresProc [Widget.SELECTION_DONE] = windowProc2; |
| closuresProc [Widget.SHOW] = windowProc2; |
| closuresProc [Widget.START_INTERACTIVE_SEARCH] = windowProc2; |
| closuresProc [Widget.STYLE_UPDATED] = windowProc2; |
| closuresProc [Widget.VALUE_CHANGED] = windowProc2; |
| closuresProc [Widget.UNMAP] = windowProc2; |
| closuresProc [Widget.UNREALIZE] = windowProc2; |
| closuresProc [Widget.BACKSPACE] = windowProc2; |
| closuresProc [Widget.BACKSPACE_INVERSE] = windowProc2; |
| closuresProc [Widget.COPY_CLIPBOARD] = windowProc2; |
| closuresProc [Widget.COPY_CLIPBOARD_INVERSE] = windowProc2; |
| closuresProc [Widget.CUT_CLIPBOARD] = windowProc2; |
| closuresProc [Widget.CUT_CLIPBOARD_INVERSE] = windowProc2; |
| closuresProc [Widget.PASTE_CLIPBOARD] = windowProc2; |
| closuresProc [Widget.PASTE_CLIPBOARD_INVERSE] = windowProc2; |
| |
| windowCallback3 = new Callback (this, "windowProc", 3); //$NON-NLS-1$ |
| windowProc3 = windowCallback3.getAddress (); |
| |
| closuresProc [Widget.BUTTON_PRESS_EVENT] = windowProc3; |
| closuresProc [Widget.BUTTON_PRESS_EVENT_INVERSE] = windowProc3; |
| closuresProc [Widget.BUTTON_RELEASE_EVENT] = windowProc3; |
| closuresProc [Widget.BUTTON_RELEASE_EVENT_INVERSE] = windowProc3; |
| closuresProc [Widget.COMMIT] = windowProc3; |
| closuresProc [Widget.CONFIGURE_EVENT] = windowProc3; |
| closuresProc [Widget.DELETE_EVENT] = windowProc3; |
| closuresProc [Widget.ENTER_NOTIFY_EVENT] = windowProc3; |
| closuresProc [Widget.EVENT_AFTER] = windowProc3; |
| closuresProc [Widget.EXPOSE_EVENT] = windowProc3; |
| closuresProc [Widget.EXPOSE_EVENT_INVERSE] = windowProc3; |
| closuresProc [Widget.FOCUS] = windowProc3; |
| closuresProc [Widget.FOCUS_IN_EVENT] = windowProc3; |
| closuresProc [Widget.FOCUS_OUT_EVENT] = windowProc3; |
| closuresProc [Widget.KEY_PRESS_EVENT] = windowProc3; |
| closuresProc [Widget.KEY_RELEASE_EVENT] = windowProc3; |
| closuresProc [Widget.INPUT] = windowProc3; |
| closuresProc [Widget.LEAVE_NOTIFY_EVENT] = windowProc3; |
| closuresProc [Widget.MAP_EVENT] = windowProc3; |
| closuresProc [Widget.MNEMONIC_ACTIVATE] = windowProc3; |
| closuresProc [Widget.MOTION_NOTIFY_EVENT] = windowProc3; |
| closuresProc [Widget.MOTION_NOTIFY_EVENT_INVERSE] = windowProc3; |
| closuresProc [Widget.MOVE_FOCUS] = windowProc3; |
| closuresProc [Widget.POPULATE_POPUP] = windowProc3; |
| closuresProc [Widget.SCROLL_EVENT] = windowProc3; |
| closuresProc [Widget.SHOW_HELP] = windowProc3; |
| closuresProc [Widget.SIZE_ALLOCATE] = windowProc3; |
| closuresProc [Widget.TOGGLED] = windowProc3; |
| closuresProc [Widget.UNMAP_EVENT] = windowProc3; |
| closuresProc [Widget.WINDOW_STATE_EVENT] = windowProc3; |
| closuresProc [Widget.ROW_DELETED] = windowProc3; |
| closuresProc [Widget.DIRECTION_CHANGED] = windowProc3; |
| |
| windowCallback4 = new Callback (this, "windowProc", 4); //$NON-NLS-1$ |
| windowProc4 = windowCallback4.getAddress (); |
| |
| closuresProc [Widget.DELETE_RANGE] = windowProc4; |
| closuresProc [Widget.DELETE_TEXT] = windowProc4; |
| closuresProc [Widget.ICON_RELEASE] = windowProc4; |
| closuresProc [Widget.ROW_ACTIVATED] = windowProc4; |
| closuresProc [Widget.SCROLL_CHILD] = windowProc4; |
| closuresProc [Widget.STATUS_ICON_POPUP_MENU] = windowProc4; |
| closuresProc [Widget.SWITCH_PAGE] = windowProc4; |
| closuresProc [Widget.TEST_COLLAPSE_ROW] = windowProc4; |
| closuresProc [Widget.TEST_EXPAND_ROW] = windowProc4; |
| closuresProc [Widget.ROW_INSERTED] = windowProc4; |
| closuresProc [Widget.ROW_HAS_CHILD_TOGGLED] = windowProc4; |
| closuresProc [Widget.DELETE_FROM_CURSOR] = windowProc4; |
| closuresProc [Widget.DELETE_FROM_CURSOR_INVERSE] = windowProc4; |
| closuresProc [Widget.SIZE_ALLOCATE_GTK4] = windowProc4; |
| |
| windowCallback5 = new Callback (this, "windowProc", 5); //$NON-NLS-1$ |
| windowProc5 = windowCallback5.getAddress (); |
| |
| /* |
| * The "change-value" signal has a double parameter, so this |
| * needs to be handled separately. See bug |
| */ |
| changeValue = new Callback (this, "changeValue", boolean.class, new Type [] {long.class, int.class, double.class, long.class}); //$NON-NLS-1$ |
| changeValueProc = changeValue.getAddress (); |
| closuresProc [Widget.CHANGE_VALUE] = changeValueProc; |
| |
| closuresProc [Widget.EXPAND_COLLAPSE_CURSOR_ROW] = windowProc5; |
| closuresProc [Widget.INSERT_TEXT] = windowProc5; |
| closuresProc [Widget.TEXT_BUFFER_INSERT_TEXT] = windowProc5; |
| closuresProc [Widget.MOVE_CURSOR] = windowProc5; |
| closuresProc [Widget.MOVE_CURSOR_INVERSE] = windowProc5; |
| |
| if (signalIds [Widget.POPPED_UP] != 0) { |
| windowCallback6 = new Callback (this, "windowProc", 6); //$NON-NLS-1$ |
| windowProc6 = windowCallback6.getAddress (); |
| closuresProc [Widget.POPPED_UP] = windowProc6; |
| } |
| |
| for (int i = 0; i < Widget.LAST_SIGNAL; i++) { |
| if (closuresProc[i] != 0) { |
| closures [i] = OS.g_cclosure_new(closuresProc [i], i, 0); |
| } |
| if (closures [i] != 0) { |
| OS.g_closure_ref (closures [i]); |
| OS.g_closure_sink (closures [i]); |
| } |
| } |
| |
| timerCallback = new Callback (this, "timerProc", 1); //$NON-NLS-1$ |
| timerProc = timerCallback.getAddress (); |
| |
| windowTimerCallback = new Callback (this, "windowTimerProc", 1); //$NON-NLS-1$ |
| windowTimerProc = windowTimerCallback.getAddress (); |
| |
| mouseHoverCallback = new Callback (this, "mouseHoverProc", 1); //$NON-NLS-1$ |
| mouseHoverProc = mouseHoverCallback.getAddress (); |
| |
| caretCallback = new Callback(this, "caretProc", 1); //$NON-NLS-1$ |
| caretProc = caretCallback.getAddress(); |
| |
| sizeAllocateCallback = new Callback(this, "sizeAllocateProc", 3); //$NON-NLS-1$ |
| sizeAllocateProc = sizeAllocateCallback.getAddress(); |
| |
| sizeRequestCallback = new Callback(this, "sizeRequestProc", 3); //$NON-NLS-1$ |
| sizeRequestProc = sizeRequestCallback.getAddress(); |
| |
| shellMapCallback = new Callback(this, "shellMapProc", 3); //$NON-NLS-1$ |
| shellMapProc = shellMapCallback.getAddress(); |
| |
| shellMapProcClosure = OS.g_cclosure_new (shellMapProc, 0, 0); |
| OS.g_closure_ref (shellMapProcClosure); |
| |
| cellDataCallback = new Callback (this, "cellDataProc", 5); //$NON-NLS-1$ |
| cellDataProc = cellDataCallback.getAddress (); |
| |
| setDirectionCallback = new Callback (this, "setDirectionProc", 2); //$NON-NLS-1$ |
| setDirectionProc = setDirectionCallback.getAddress (); |
| |
| emissionProcCallback = new Callback (this, "emissionProc", 4); //$NON-NLS-1$ |
| emissionProc = emissionProcCallback.getAddress (); |
| |
| allChildrenCallback = new Callback (this, "allChildrenProc", 2); //$NON-NLS-1$ |
| allChildrenProc = allChildrenCallback.getAddress (); |
| |
| checkIfEventCallback = new Callback (this, "checkIfEventProc", 3); //$NON-NLS-1$ |
| checkIfEventProc = checkIfEventCallback.getAddress (); |
| |
| idleCallback = new Callback (this, "idleProc", 1); //$NON-NLS-1$ |
| idleProc = idleCallback.getAddress (); |
| } |
| |
| void initializeNamedColorList() { |
| colorList = new ArrayList<>(); |
| colorList.add("black"); |
| colorList.add("darkred"); |
| colorList.add("darkgreen"); |
| colorList.add("darkyellow"); |
| colorList.add("darkblue"); |
| colorList.add("darkmagenta"); |
| colorList.add("darkcyan"); |
| colorList.add("darkgray"); |
| colorList.add("gray"); |
| colorList.add("red"); |
| colorList.add("green"); |
| colorList.add("yellow"); |
| colorList.add("blue"); |
| colorList.add("magenta"); |
| colorList.add("cyan"); |
| colorList.add("white"); |
| |
| } |
| |
| void initializeSubclasses () { |
| if (!GTK.GTK4) { |
| long pangoLayoutType = OS.PANGO_TYPE_LAYOUT (); |
| long pangoLayoutClass = OS.g_type_class_ref (pangoLayoutType); |
| pangoLayoutNewProc = OS.G_OBJECT_CLASS_CONSTRUCTOR (pangoLayoutClass); |
| OS.G_OBJECT_CLASS_SET_CONSTRUCTOR (pangoLayoutClass, OS.pangoLayoutNewProc_CALLBACK(pangoLayoutNewProc)); |
| OS.g_type_class_unref (pangoLayoutClass); |
| |
| long imContextType = GTK.GTK_TYPE_IM_MULTICONTEXT (); |
| long imContextClass = OS.g_type_class_ref (imContextType); |
| imContextNewProc = OS.G_OBJECT_CLASS_CONSTRUCTOR (imContextClass); |
| OS.G_OBJECT_CLASS_SET_CONSTRUCTOR (imContextClass, OS.imContextNewProc_CALLBACK(imContextNewProc)); |
| OS.g_type_class_unref (imContextClass); |
| |
| long pangoFontFamilyType = OS.PANGO_TYPE_FONT_FAMILY (); |
| long pangoFontFamilyClass = OS.g_type_class_ref (pangoFontFamilyType); |
| pangoFontFamilyNewProc = OS.G_OBJECT_CLASS_CONSTRUCTOR (pangoFontFamilyClass); |
| OS.G_OBJECT_CLASS_SET_CONSTRUCTOR (pangoFontFamilyClass, OS.pangoFontFamilyNewProc_CALLBACK(pangoFontFamilyNewProc)); |
| OS.g_type_class_unref (pangoFontFamilyClass); |
| |
| long pangoFontFaceType = OS.PANGO_TYPE_FONT_FACE (); |
| long pangoFontFaceClass = OS.g_type_class_ref (pangoFontFaceType); |
| pangoFontFaceNewProc = OS.G_OBJECT_CLASS_CONSTRUCTOR (pangoFontFaceClass); |
| OS.G_OBJECT_CLASS_SET_CONSTRUCTOR (pangoFontFaceClass, OS.pangoFontFaceNewProc_CALLBACK(pangoFontFaceNewProc)); |
| OS.g_type_class_unref (pangoFontFaceClass); |
| |
| if (!OS.IsWin32) { /* TODO [win32] replace unixprint */ |
| long printerOptionWidgetType = GTK.gtk_printer_option_widget_get_type(); |
| long printerOptionWidgetClass = OS.g_type_class_ref (printerOptionWidgetType); |
| printerOptionWidgetNewProc = OS.G_OBJECT_CLASS_CONSTRUCTOR (printerOptionWidgetClass); |
| OS.G_OBJECT_CLASS_SET_CONSTRUCTOR (printerOptionWidgetClass, OS.printerOptionWidgetNewProc_CALLBACK(printerOptionWidgetNewProc)); |
| OS.g_type_class_unref (printerOptionWidgetClass); |
| } |
| } |
| } |
| |
| void initializeSystemSettings () { |
| if (!GTK.GTK4) { |
| OS.g_signal_connect (shellHandle, OS.style_updated, signalProc, STYLE_UPDATED); |
| OS.g_signal_connect(GTK.gtk_settings_get_default (), OS.notify_theme_change, signalProc, STYLE_UPDATED); |
| } |
| |
| int[] flag = new int[1]; |
| long settings = GTK.gtk_settings_get_default(); |
| OS.g_object_get(settings, GTK.gtk_entry_select_on_focus, flag, 0); |
| |
| entrySelectOnFocus = (flag[0] != 0); |
| } |
| |
| void initializeWidgetTable () { |
| indexTable = new int [GROW_SIZE]; |
| widgetTable = new Widget [GROW_SIZE]; |
| for (int i=0; i<GROW_SIZE-1; i++) indexTable [i] = i + 1; |
| indexTable [GROW_SIZE - 1] = -1; |
| } |
| |
| void initializeSessionManager() { |
| sessionManagerDBus = new SessionManagerDBus(); |
| sessionManagerListener = new SessionManagerListener(this); |
| sessionManagerDBus.addListener(sessionManagerListener); |
| } |
| |
| /** |
| * Some parts of SWT (like WebKit) use GDBus for IPC. Some of these objects |
| * cannot be disposed of in their own classes due to design challenges. |
| * In these instances we release them along with this Display. This ensures |
| * no Browser will be using them at disposal time. |
| */ |
| void releaseDBusServices() { |
| releaseSessionManager(); |
| for (long connection : dBusConnections) { |
| if (OS.g_dbus_connection_is_closed(connection)) continue; |
| long [] error = new long [1]; |
| boolean closed = OS.g_dbus_connection_close_sync(connection, 0, error); |
| if (error[0] != 0) { |
| String msg = extractFreeGError(error[0]); |
| System.err.println("SWT Display: error closing connection: " + msg); |
| } |
| if (closed) { |
| // Free this as we added a reference to it |
| OS.g_object_unref(connection); |
| } |
| } |
| for (long server : dBusServers) { |
| OS.g_dbus_server_stop(server); |
| OS.g_object_unref(server); |
| } |
| for (long authObserver : dBusAuthObservers) { |
| OS.g_object_unref(authObserver); |
| } |
| for (long guid : dBusGUIDS) { |
| OS.g_free(guid); |
| } |
| dBusConnections.clear(); |
| dBusServers.clear(); |
| dBusAuthObservers.clear(); |
| dBusGUIDS.clear(); |
| dBusServers = dBusAuthObservers = dBusGUIDS = dBusConnections = null; |
| } |
| |
| /** |
| * Helper method to extract GError messages. Only call if the pointer is valid (i.e. non-zero). |
| * |
| * @param errorPtr pointer to the GError |
| * @return a String representing the error message that was set |
| * |
| * @noreference This method is not intended to be referenced by clients. |
| */ |
| public static String extractFreeGError(long errorPtr) { |
| long errorMessageC = OS.g_error_get_message(errorPtr); |
| String errorMessageStr = Converter.cCharPtrToJavaString(errorMessageC, false); |
| OS.g_error_free(errorPtr); |
| return errorMessageStr; |
| } |
| |
| void releaseSessionManager() { |
| if (sessionManagerDBus != null) { |
| sessionManagerDBus.dispose(); |
| sessionManagerDBus = null; |
| } |
| |
| sessionManagerListener = null; |
| } |
| |
| /** |
| * 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 hDC, GCData data) { |
| Cairo.cairo_destroy (hDC); |
| } |
| |
| /** |
| * 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 internal_new_GC (GCData data) { |
| if (isDisposed()) error(SWT.ERROR_DEVICE_DISPOSED); |
| long gc = 0; |
| long root = 0; |
| if (GTK.GTK4) { |
| long surface = Cairo.cairo_image_surface_create(Cairo.CAIRO_FORMAT_A8, data.width, data.height); |
| gc = Cairo.cairo_create(surface); |
| } else { |
| root = GDK.gdk_get_default_root_window(); |
| gc = GDK.gdk_cairo_create(root); |
| } |
| if (gc == 0) error (SWT.ERROR_NO_HANDLES); |
| //TODO how gdk_gc_set_subwindow is done in cairo? |
| if (data != null) { |
| int mask = SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT; |
| if ((data.style & mask) == 0) { |
| data.style |= SWT.LEFT_TO_RIGHT; |
| } |
| data.device = this; |
| data.drawable = root; |
| data.backgroundRGBA = getSystemColor (SWT.COLOR_WHITE).handle; |
| data.foregroundRGBA = getSystemColor (SWT.COLOR_BLACK).handle; |
| data.font = getSystemFont (); |
| } |
| return gc; |
| } |
| |
| boolean isValidThread () { |
| return thread == Thread.currentThread (); |
| } |
| |
| /** |
| * Maps a point from one coordinate system to another. |
| * When the control is null, coordinates are mapped to |
| * the display. |
| * <p> |
| * NOTE: On right-to-left platforms where the coordinate |
| * systems are mirrored, special care needs to be taken |
| * when mapping coordinates from one control to another |
| * to ensure the result is correctly mirrored. |
| * |
| * Mapping a point that is the origin of a rectangle and |
| * then adding the width and height is not equivalent to |
| * mapping the rectangle. When one control is mirrored |
| * and the other is not, adding the width and height to a |
| * point that was mapped causes the rectangle to extend |
| * in the wrong direction. Mapping the entire rectangle |
| * instead of just one point causes both the origin and |
| * the corner of the rectangle to be mapped. |
| * </p> |
| * |
| * @param from the source <code>Control</code> or <code>null</code> |
| * @param to the destination <code>Control</code> or <code>null</code> |
| * @param point to be mapped |
| * @return point with mapped coordinates |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the point is null</li> |
| * <li>ERROR_INVALID_ARGUMENT - if the Control from or the Control to have been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 2.1.2 |
| */ |
| public Point map (Control from, Control to, Point point) { |
| checkDevice (); |
| if (point == null) error (SWT.ERROR_NULL_ARGUMENT); |
| return map (from, to, point.x, point.y); |
| } |
| |
| /** |
| * Maps a point from one coordinate system to another. |
| * When the control is null, coordinates are mapped to |
| * the display. |
| * <p> |
| * NOTE: On right-to-left platforms where the coordinate |
| * systems are mirrored, special care needs to be taken |
| * when mapping coordinates from one control to another |
| * to ensure the result is correctly mirrored. |
| * |
| * Mapping a point that is the origin of a rectangle and |
| * then adding the width and height is not equivalent to |
| * mapping the rectangle. When one control is mirrored |
| * and the other is not, adding the width and height to a |
| * point that was mapped causes the rectangle to extend |
| * in the wrong direction. Mapping the entire rectangle |
| * instead of just one point causes both the origin and |
| * the corner of the rectangle to be mapped. |
| * </p> |
| * |
| * @param from the source <code>Control</code> or <code>null</code> |
| * @param to the destination <code>Control</code> or <code>null</code> |
| * @param x coordinates to be mapped |
| * @param y coordinates to be mapped |
| * @return point with mapped coordinates |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the Control from or the Control to have been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 2.1.2 |
| */ |
| public Point map (Control from, Control to, int x, int y) { |
| checkDevice (); |
| if (from != null && from.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (to != null && to.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT); |
| Point point = new Point (x, y); |
| if (from == to) return point; |
| if (from != null) { |
| Point origin = DPIUtil.autoScaleDown (GTK.GTK4 ? from.getSurfaceOrigin() : from.getWindowOrigin ()); |
| if ((from.style & SWT.MIRRORED) != 0) point.x = DPIUtil.autoScaleDown (from.getClientWidth ()) - point.x; |
| point.x += origin.x; |
| point.y += origin.y; |
| } |
| if (to != null) { |
| Point origin = DPIUtil.autoScaleDown (GTK.GTK4 ? to.getSurfaceOrigin() : to.getWindowOrigin ()); |
| point.x -= origin.x; |
| point.y -= origin.y; |
| if ((to.style & SWT.MIRRORED) != 0) point.x = DPIUtil.autoScaleDown (to.getClientWidth ()) - point.x; |
| } |
| return point; |
| } |
| |
| Point mapInPixels (Control from, Control to, int x, int y) { |
| checkDevice (); |
| if (from != null && from.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (to != null && to.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT); |
| Point point = new Point (x, y); |
| if (from == to) return point; |
| if (from != null) { |
| Point origin = GTK.GTK4 ? from.getSurfaceOrigin() : from.getWindowOrigin (); |
| if ((from.style & SWT.MIRRORED) != 0) point.x = from.getClientWidth () - point.x; |
| point.x += origin.x; |
| point.y += origin.y; |
| } |
| if (to != null) { |
| Point origin = GTK.GTK4 ? to.getSurfaceOrigin() : to.getWindowOrigin (); |
| point.x -= origin.x; |
| point.y -= origin.y; |
| if ((to.style & SWT.MIRRORED) != 0) point.x = to.getClientWidth () - point.x; |
| } |
| return point; |
| } |
| |
| /** |
| * Maps a point from one coordinate system to another. |
| * When the control is null, coordinates are mapped to |
| * the display. |
| * <p> |
| * NOTE: On right-to-left platforms where the coordinate |
| * systems are mirrored, special care needs to be taken |
| * when mapping coordinates from one control to another |
| * to ensure the result is correctly mirrored. |
| * |
| * Mapping a point that is the origin of a rectangle and |
| * then adding the width and height is not equivalent to |
| * mapping the rectangle. When one control is mirrored |
| * and the other is not, adding the width and height to a |
| * point that was mapped causes the rectangle to extend |
| * in the wrong direction. Mapping the entire rectangle |
| * instead of just one point causes both the origin and |
| * the corner of the rectangle to be mapped. |
| * </p> |
| * |
| * @param from the source <code>Control</code> or <code>null</code> |
| * @param to the destination <code>Control</code> or <code>null</code> |
| * @param rectangle to be mapped |
| * @return rectangle with mapped coordinates |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the rectangle is null</li> |
| * <li>ERROR_INVALID_ARGUMENT - if the Control from or the Control to have been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @since 2.1.2 |
| */ |
| public Rectangle map (Control from, Control to, Rectangle rectangle) { |
| checkDevice(); |
| if (rectangle == null) error (SWT.ERROR_NULL_ARGUMENT); |
| return map (from, to, rectangle.x, rectangle.y, rectangle.width, rectangle.height); |
| } |
| |
| Rectangle mapInPixels (Control from, Control to, Rectangle rectangle) { |
| checkDevice(); |
| if (rectangle == null) error (SWT.ERROR_NULL_ARGUMENT); |
| 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(); |
| if (from != null && from.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (to != null && to.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT); |
| Rectangle rect = new Rectangle (x, y, width, height); |
| if (from == to) return rect; |
| boolean fromRTL = false, toRTL = false; |
| if (from != null) { |
| Point origin = DPIUtil.autoScaleDown (GTK.GTK4 ? from.getSurfaceOrigin () : from.getWindowOrigin ()); |
| if (fromRTL = (from.style & SWT.MIRRORED) != 0) rect.x = DPIUtil.autoScaleDown (from.getClientWidth ()) - rect.x; |
| rect.x += origin.x; |
| rect.y += origin.y; |
| } |
| if (to != null) { |
| Point origin = DPIUtil.autoScaleDown (GTK.GTK4 ? to.getSurfaceOrigin() : to.getWindowOrigin ()); |
| rect.x -= origin.x; |
| rect.y -= origin.y; |
| if (toRTL = (to.style & SWT.MIRRORED) != 0) rect.x = DPIUtil.autoScaleDown (to.getClientWidth ()) - rect.x; |
| } |
| |
| if (fromRTL != toRTL) rect.x -= rect.width; |
| return rect; |
| } |
| |
| Rectangle mapInPixels (Control from, Control to, int x, int y, int width, int height) { |
| checkDevice(); |
| if (from != null && from.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (to != null && to.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT); |
| |
| // TODO: GTK4 no longer able to retrieve surface/window origin |
| if (GTK.GTK4) return new Rectangle(x, y, 0, 0); |
| |
| Rectangle rect = new Rectangle (x, y, width, height); |
| if (from == to) return rect; |
| boolean fromRTL = false, toRTL = false; |
| if (from != null) { |
| Point origin = from.getWindowOrigin (); |
| if (fromRTL = (from.style & SWT.MIRRORED) != 0) rect.x = from.getClientWidth () - rect.x; |
| rect.x += origin.x; |
| rect.y += origin.y; |
| } |
| if (to != null) { |
| Point origin = to.getWindowOrigin (); |
| rect.x -= origin.x; |
| rect.y -= origin.y; |
| if (toRTL = (to.style & SWT.MIRRORED) != 0) rect.x = to.getClientWidth () - rect.x; |
| } |
| |
| if (fromRTL != toRTL) rect.x -= rect.width; |
| return rect; |
| } |
| |
| long mouseHoverProc (long handle) { |
| Widget widget = getWidget (handle); |
| // null the GSource id as our implementation always returns 0 so the hover is |
| // hidden and this leads to the GSource to be destroyed |
| mouseHoverId = 0; |
| if (widget == null) { |
| return 0; |
| } |
| return widget.hoverProc (handle); |
| } |
| |
| long findFocusedWindow() { |
| long gdkWindow = 0; |
| long window_list = GDK.gdk_window_get_children(GDK.gdk_get_default_root_window()); |
| if (window_list != 0) { |
| long windows = window_list; |
| while (windows != 0) { |
| long curr_window = OS.g_list_data(windows); |
| int state = GDK.gdk_window_get_state(curr_window); |
| if ((state & GDK.GDK_WINDOW_STATE_FOCUSED) != 0 && (state & GDK.GDK_WINDOW_STATE_WITHDRAWN) == 0) { |
| gdkWindow = curr_window; |
| OS.g_object_ref(gdkWindow); |
| break; |
| } |
| windows = OS.g_list_next(windows); |
| } |
| OS.g_list_free(window_list); |
| } |
| |
| return gdkWindow; |
| } |
| |
| /** |
| * 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></ul> |
| * <p> Either one of:</p> |
| * <ul><li>(in) character a character that corresponds to a keyboard key</li> |
| * <li>(in) keyCode the key code of the key that was typed, |
| * as defined by the key code constants in class <code>SWT</code></li></ul> |
| * <p> Optional (on some platforms): </p> |
| * <ul><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> |
| * <li>(in) x the x coordinate to move the mouse pointer to in screen coordinates</li> |
| * <li>(in) y the y coordinate to move the mouse pointer to in screen coordinates</li> |
| * </ul> |
| * <p>MouseWheel</p> |
| * <p>The following fields in the <code>Event</code> apply:</p> |
| * <ul> |
| * <li>(in) type MouseWheel</li> |
| * <li>(in) detail either SWT.SCROLL_LINE or SWT.SCROLL_PAGE</li> |
| * <li>(in) count the number of lines or pages to scroll</li> |
| * </ul> |
| * |
| * @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; |
| |
| if (type == SWT.MouseMove) { |
| Rectangle loc = DPIUtil.autoScaleUp(event.getBounds()); |
| setCursorLocationInPixels(new Point(loc.x, loc.y)); |
| return true; |
| } |
| |
| long gdkDisplay = GDK.gdk_display_get_default(); |
| long gdkSeat = GDK.gdk_display_get_default_seat(gdkDisplay); |
| |
| switch (type) { |
| case SWT.KeyDown: |
| case SWT.KeyUp: { |
| long gdkWindow = findFocusedWindow(); |
| if (gdkWindow == 0) return false; |
| |
| /* Translate the SWT Event fields to GDK fields |
| * We need hardware_keycode, GdkModifierType, group to get keyval |
| * 1) event.character -> hardware_keycode |
| * 2) event.stateMask -> GdkModifierType(state) |
| * 3) event.keyCode -> hardware_keycode, GdkModifierType(state) (i.e. SWT.SHIFT) |
| */ |
| int state = type == SWT.KeyDown ? GDK.GDK_KEY_PRESS_MASK : GDK.GDK_KEY_RELEASE_MASK; |
| if (cachedModifierState != 0) { |
| state |= cachedModifierState; |
| } |
| int is_modifier = 1; |
| int modifier = event.stateMask != 0 ? event.stateMask : event.keyCode; |
| switch (modifier) { |
| case SWT.SHIFT: state |= GDK.GDK_SHIFT_MASK; break; |
| case SWT.ALT: state |= GDK.GDK_MOD1_MASK; break; |
| case SWT.CONTROL: state |= GDK.GDK_CONTROL_MASK; break; |
| case SWT.ALT_GR: state |= GDK.GDK_MOD5_MASK; break; |
| default: |
| is_modifier = cachedModifierState == 0 ? 0 : 1; |
| } |
| |
| // Save the modifier state pressed until it is released |
| if (is_modifier == 1 && type == SWT.KeyDown) { |
| cachedModifierState = state & (~GDK.GDK_KEY_PRESS_MASK | ~GDK.GDK_KEY_RELEASE_MASK); |
| } else { |
| cachedModifierState = 0; |
| } |
| |
| int hardware_keycode = 0; |
| int raw_keyval = untranslateKey(event.keyCode); |
| if (raw_keyval == 0) raw_keyval = event.character; |
| |
| long [] keys_list = new long [1]; |
| int [] n_keys = new int [1]; |
| int [] keyval = new int [1], effective_group = new int [1], level = new int [1], consumed_modifiers = new int[1]; |
| int final_keyval = raw_keyval; |
| |
| boolean foundKeys; |
| long keymap = 0; |
| if (GTK.GTK4) { |
| // TODO: Find alternative for gdk_keymap_translate_keyboard_state (no longer exist, and keymap can not be retrieved) |
| foundKeys = GDK.gdk_display_map_keyval(gdkDisplay, raw_keyval, keys_list, n_keys); |
| } else { |
| keymap = GDK.gdk_keymap_get_for_display(gdkDisplay); |
| foundKeys = GDK.gdk_keymap_get_entries_for_keyval (keymap, raw_keyval, keys_list, n_keys); |
| } |
| |
| if (foundKeys) { |
| GdkKeymapKey key_entry = new GdkKeymapKey (); |
| if (n_keys[0] > 0) { |
| OS.memmove(key_entry, keys_list[0], GdkKeymapKey.sizeof); |
| hardware_keycode = key_entry.keycode; |
| } |
| OS.g_free(keys_list[0]); |
| |
| GDK.gdk_keymap_translate_keyboard_state(keymap, hardware_keycode, state, 0, keyval, effective_group, level, consumed_modifiers); |
| if (is_modifier == 1) final_keyval = keyval[0]; |
| } |
| |
| /* Construct GdkEventKey */ |
| final long eventPtr = GDK.gdk_event_new(type == SWT.KeyDown ? GDK.GDK_KEY_PRESS : GDK.GDK_KEY_RELEASE); |
| GdkEventKey newKeyEvent = new GdkEventKey (); |
| newKeyEvent.type = type == SWT.KeyDown ? GDK.GDK_KEY_PRESS : GDK.GDK_KEY_RELEASE; |
| newKeyEvent.window = gdkWindow; |
| newKeyEvent.send_event = 1; |
| newKeyEvent.time = GDK.GDK_CURRENT_TIME; |
| newKeyEvent.keyval = final_keyval; |
| newKeyEvent.state = state; |
| newKeyEvent.hardware_keycode = (short) hardware_keycode; |
| newKeyEvent.group = (byte) effective_group[0]; |
| newKeyEvent.is_modifier = is_modifier; |
| |
| OS.memmove(eventPtr, newKeyEvent, GdkEventKey.sizeof); |
| GDK.gdk_event_set_device (eventPtr, GDK.gdk_seat_get_keyboard(gdkSeat)); |
| if (GTK.GTK4) { |
| GDK.gdk_display_put_event(gdkDisplay, eventPtr); |
| } else { |
| GDK.gdk_event_put (eventPtr); |
| } |
| |
| if (GTK.GTK4) { |
| GDK.gdk_event_unref(eventPtr); |
| } else { |
| GDK.gdk_event_free(eventPtr); |
| } |
| return true; |
| } |
| case SWT.MouseDown: |
| case SWT.MouseUp: { |
| int[] x = new int[1], y = new int[1], mask = new int[1]; |
| final long gdkPointerDevice = GDK.gdk_seat_get_pointer(gdkSeat); |
| final long gdkWindow = GDK.gdk_device_get_window_at_position(gdkPointerDevice, x, y); |
| // Under Wayland or some window managers, gdkWindow is not known to GDK and null is returned, |
| // cannot post mouse events as it will lead to crash |
| if (gdkWindow == 0) return false; |
| OS.g_object_ref(gdkWindow); |
| |
| /* Construct GdkEventButton */ |
| final long eventPtr = GDK.gdk_event_new(type == SWT.MouseDown ? GDK.GDK_BUTTON_PRESS : GDK.GDK_BUTTON_RELEASE); |
| GdkEventButton newButtonEvent = new GdkEventButton (); |
| newButtonEvent.type = type == SWT.MouseDown ? GDK.GDK_BUTTON_PRESS : GDK.GDK_BUTTON_RELEASE; |
| newButtonEvent.window = gdkWindow; |
| newButtonEvent.send_event = 1; |
| newButtonEvent.time = GDK.GDK_CURRENT_TIME; |
| newButtonEvent.x = x[0]; |
| newButtonEvent.y = y[0]; |
| newButtonEvent.state = mask[0]; |
| newButtonEvent.button = event.button; |
| newButtonEvent.device = gdkPointerDevice; |
| |
| OS.memmove(eventPtr, newButtonEvent, GdkEventButton.sizeof); |
| GDK.gdk_event_set_device(eventPtr, gdkPointerDevice); |
| |
| GDK.gdk_event_put(eventPtr); |
| if (GTK.GTK4) { |
| GDK.gdk_event_unref(eventPtr); |
| } else { |
| GDK.gdk_event_free (eventPtr); |
| } |
| return true; |
| } |
| } |
| return false; |
| } |
| } |
| |
| void postEvent (Event event) { |
| /* |
| * Place the event at the end of the event queue. |
| * This code is always called in the Display's |
| * thread so it must be re-enterant but does not |
| * need to be synchronized. |
| */ |
| if (eventQueue == null) eventQueue = new Event [4]; |
| int index = 0; |
| int length = eventQueue.length; |
| while (index < length) { |
| if (eventQueue [index] == null) break; |
| index++; |
| } |
| if (index == length) { |
| Event [] newQueue = new Event [length + 4]; |
| System.arraycopy (eventQueue, 0, newQueue, 0, length); |
| eventQueue = newQueue; |
| } |
| eventQueue [index] = event; |
| } |
| |
| void putGdkEvents () { |
| if (gdkEventCount != 0) { |
| for (int i = 0; i < gdkEventCount; i++) { |
| long event = gdkEvents [i]; |
| Widget widget = gdkEventWidgets [i]; |
| if (widget == null || !widget.isDisposed ()) { |
| if (GTK.GTK4) { |
| long display = GDK.gdk_display_get_default(); |
| GDK.gdk_display_put_event(display, event); |
| } else { |
| GDK.gdk_event_put (event); |
| } |
| } |
| if (GTK.GTK4) { |
| GDK.gdk_event_unref(event); |
| } else { |
| GDK.gdk_event_free (event); |
| } |
| gdkEvents [i] = 0; |
| gdkEventWidgets [i] = null; |
| } |
| gdkEventCount = 0; |
| } |
| } |
| |
| /** |
| * Reads an event from the operating system's event queue, |
| * dispatches it appropriately, and returns <code>true</code> |
| * if there is potentially more work to do, or <code>false</code> |
| * if the caller can sleep until another event is placed on |
| * the event queue. |
| * <p> |
| * In addition to checking the system event queue, this method also |
| * checks if any inter-thread messages (created by <code>syncExec()</code> |
| * or <code>asyncExec()</code>) are waiting to be processed, and if |
| * so handles them before returning. |
| * </p> |
| * |
| * @return <code>false</code> if the caller can sleep upon return from this method |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_FAILED_EXEC - if an exception occurred while running an inter-thread message</li> |
| * </ul> |
| * |
| * @see #sleep |
| * @see #wake |
| */ |
| public boolean readAndDispatch () { |
| checkDevice (); |
| runSkin (); |
| runDeferredLayouts (); |
| boolean events = false; |
| events |= runSettings (); |
| events |= runPopups (); |
| /* |
| * This call to gdk_threads_leave() is a temporary work around |
| * to avoid deadlocks when gdk_threads_init() is called by native |
| * code outside of SWT (i.e AWT, etc). It ensures that the current |
| * thread leaves the GTK lock before calling the function below. |
| */ |
| if (!GTK.GTK4) GDK.gdk_threads_leave(); |
| events |= OS.g_main_context_iteration (0, false); |
| if (events) { |
| 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; |
| 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; |
| releaseDBusServices (); |
| releaseSessionManager (); |
| releaseDisplay (); |
| super.release (); |
| } |
| |
| void releaseDisplay () { |
| windowCallback2.dispose (); windowCallback2 = null; |
| windowCallback3.dispose (); windowCallback3 = null; |
| windowCallback4.dispose (); windowCallback4 = null; |
| windowCallback5.dispose (); windowCallback5 = null; |
| if (windowCallback6 != null) { |
| windowCallback6.dispose (); windowCallback6 = null; |
| } |
| windowProc2 = windowProc3 = windowProc4 = windowProc5 = windowProc6 = 0; |
| |
| if (changeValue != null) { |
| changeValue.dispose(); changeValue = null; |
| } |
| changeValueProc = 0; |
| |
| if (GTK.GTK4) { |
| keyPressReleaseCallback.dispose(); |
| keyPressReleaseCallback = null; |
| keyPressReleaseProc = 0; |
| |
| focusCallback.dispose(); |
| focusCallback = null; |
| focusProc = 0; |
| |
| enterMotionScrollCallback.dispose(); |
| enterMotionScrollCallback = null; |
| enterMotionScrollProc = 0; |
| |
| leaveCallback.dispose(); |
| leaveCallback = null; |
| leaveProc = 0; |
| |
| resizeCallback.dispose(); |
| resizeCallback = null; |
| resizeProc = 0; |
| |
| gesturePressReleaseCallback.dispose(); |
| gesturePressReleaseCallback = null; |
| gesturePressReleaseProc = 0; |
| |
| snapshotDraw.dispose(); |
| snapshotDraw = null; |
| snapshotDrawProc = 0; |
| } |
| |
| notifyCallback.dispose(); |
| notifyCallback = null; |
| notifyProc = 0; |
| |
| /* Dispose checkIfEvent callback */ |
| checkIfEventCallback.dispose(); checkIfEventCallback = null; |
| checkIfEventProc = 0; |
| |
| /* Dispose preedit window */ |
| if (preeditWindow != 0) { |
| if (GTK.GTK4) { |
| GTK.gtk_window_destroy(preeditWindow); |
| } else { |
| GTK.gtk_widget_destroy(preeditWindow); |
| } |
| } |
| preeditWindow = 0; |
| imControl = null; |
| |
| /* Dispose the tooltip map callback */ |
| sizeAllocateCallback.dispose (); sizeAllocateCallback = null; |
| sizeAllocateProc = 0; |
| sizeRequestCallback.dispose (); sizeRequestCallback = null; |
| sizeRequestProc = 0; |
| |
| /* Dispose the shell map callback */ |
| shellMapCallback.dispose (); shellMapCallback = null; |
| shellMapProc = 0; |
| |
| /* Dispose the run async messages callback */ |
| idleCallback.dispose (); idleCallback = null; |
| idleProc = 0; |
| if (idleHandle != 0) OS.g_source_remove (idleHandle); |
| idleHandle = 0; |
| |
| /* Dispose GtkTreeView callbacks */ |
| cellDataCallback.dispose (); cellDataCallback = null; |
| cellDataProc = 0; |
| |
| /* Dispose the set direction callback */ |
| setDirectionCallback.dispose (); setDirectionCallback = null; |
| setDirectionProc = 0; |
| |
| /* Dispose the emission proc callback */ |
| emissionProcCallback.dispose (); emissionProcCallback = null; |
| emissionProc = 0; |
| |
| /* Dispose the set direction callback */ |
| allChildrenCallback.dispose (); allChildrenCallback = null; |
| allChildrenProc = 0; |
| |
| /* Dispose the caret callback */ |
| if (caretId != 0) OS.g_source_remove (caretId); |
| caretId = 0; |
| caretProc = 0; |
| caretCallback.dispose (); |
| caretCallback = null; |
| |
| /* Release closures */ |
| for (int i = 0; i < Widget.LAST_SIGNAL; i++) { |
| if (closures [i] != 0) OS.g_closure_unref (closures [i]); |
| } |
| if (shellMapProcClosure != 0) OS.g_closure_unref (shellMapProcClosure); |
| |
| /* Dispose the timer callback */ |
| if (timerIds != null) { |
| for (int i=0; i<timerIds.length; i++) { |
| if (timerIds [i] != 0) OS.g_source_remove (timerIds [i]); |
| } |
| } |
| timerIds = null; |
| timerList = null; |
| timerProc = 0; |
| timerCallback.dispose (); |
| timerCallback = null; |
| windowTimerProc = 0; |
| windowTimerCallback.dispose (); |
| windowTimerCallback = null; |
| |
| /* Dispose mouse hover callback */ |
| if (mouseHoverId != 0) OS.g_source_remove (mouseHoverId); |
| mouseHoverId = 0; |
| mouseHoverHandle = mouseHoverProc = 0; |
| mouseHoverCallback.dispose (); |
| mouseHoverCallback = null; |
| |
| /* Dispose the System Images */ |
| if (errorImage != null) errorImage.dispose(); |
| if (infoImage != null) infoImage.dispose(); |
| if (questionImage != null) questionImage.dispose(); |
| if (warningImage != null) warningImage.dispose(); |
| errorImage = infoImage = questionImage = warningImage = 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 the System Colors */ |
| COLOR_WIDGET_DARK_SHADOW_RGBA = COLOR_WIDGET_NORMAL_SHADOW_RGBA = COLOR_WIDGET_LIGHT_SHADOW_RGBA = |
| COLOR_WIDGET_HIGHLIGHT_SHADOW_RGBA = COLOR_WIDGET_BACKGROUND_RGBA = COLOR_WIDGET_BORDER_RGBA = |
| COLOR_LIST_FOREGROUND_RGBA = COLOR_LIST_BACKGROUND_RGBA = COLOR_LIST_SELECTION_RGBA = COLOR_LIST_SELECTION_TEXT_RGBA = |
| COLOR_LIST_SELECTION_INACTIVE_RGBA = COLOR_LIST_SELECTION_TEXT_INACTIVE_RGBA = |
| COLOR_WIDGET_FOREGROUND_RGBA = COLOR_TITLE_FOREGROUND_RGBA = COLOR_TITLE_BACKGROUND_RGBA = COLOR_TITLE_BACKGROUND_GRADIENT_RGBA = |
| COLOR_TITLE_INACTIVE_FOREGROUND_RGBA = COLOR_TITLE_INACTIVE_BACKGROUND_RGBA = COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT_RGBA = |
| COLOR_INFO_BACKGROUND_RGBA = COLOR_INFO_FOREGROUND_RGBA = COLOR_LINK_FOREGROUND_RGBA = COLOR_WIDGET_DISABLED_FOREGROUND_RGBA = |
| COLOR_TEXT_DISABLED_BACKGROUND_RGBA = null; |
| COLOR_TOGGLE_BUTTON_FOREGROUND_RGBA = null; |
| |
| /* Dispose the event callback */ |
| GDK.gdk_event_handler_set (0, 0, 0); |
| eventCallback.dispose (); eventCallback = null; |
| |
| /* Dispose the hidden shell */ |
| if (shellHandle != 0) { |
| if (GTK.GTK4) { |
| GTK.gtk_window_destroy(shellHandle); |
| } else { |
| GTK.gtk_widget_destroy(shellHandle); |
| } |
| } |
| shellHandle = 0; |
| |
| /* Dispose the settings callback */ |
| signalCallback.dispose(); signalCallback = null; |
| signalProc = 0; |
| |
| /* Dispose the "keys-changed" callback */ |
| keysChangedCallback.dispose(); keysChangedCallback = null; |
| keysChangedProc = 0; |
| |
| /* Dispose subclass */ |
| long pangoLayoutType = OS.PANGO_TYPE_LAYOUT (); |
| long pangoLayoutClass = OS.g_type_class_ref (pangoLayoutType); |
| OS.G_OBJECT_CLASS_SET_CONSTRUCTOR (pangoLayoutClass, pangoLayoutNewProc); |
| OS.g_type_class_unref (pangoLayoutClass); |
| pangoLayoutNewProc = 0; |
| long imContextType = GTK.GTK_TYPE_IM_MULTICONTEXT (); |
| long imContextClass = OS.g_type_class_ref (imContextType); |
| OS.G_OBJECT_CLASS_SET_CONSTRUCTOR (imContextClass, imContextNewProc); |
| OS.g_type_class_unref (imContextClass); |
| imContextNewProc = 0; |
| long pangoFontFamilyType = OS.PANGO_TYPE_FONT_FAMILY (); |
| long pangoFontFamilyClass = OS.g_type_class_ref (pangoFontFamilyType); |
| OS.G_OBJECT_CLASS_SET_CONSTRUCTOR (pangoFontFamilyClass, pangoFontFamilyNewProc); |
| OS.g_type_class_unref (pangoFontFamilyClass); |
| pangoFontFamilyNewProc = 0; |
| long pangoFontFaceType = OS.PANGO_TYPE_FONT_FACE (); |
| long pangoFontFaceClass = OS.g_type_class_ref (pangoFontFaceType); |
| OS.G_OBJECT_CLASS_SET_CONSTRUCTOR (pangoFontFaceClass, pangoFontFaceNewProc); |
| OS.g_type_class_unref (pangoFontFaceClass); |
| pangoFontFaceNewProc = 0; |
| |
| /* Release the sleep resources */ |
| max_priority = timeout = null; |
| if (fds != 0) OS.g_free (fds); |
| fds = 0; |
| |
| /* Release references */ |
| popups = null; |
| thread = null; |
| lastWidget = activeShell = null; |
| flushData = closures = null; |
| indexTable = signalIds = null; |
| widgetTable = modalShells = null; |
| data = null; |
| values = keys = null; |
| eventTable = filterTable = null; |
| modalDialog = null; |
| flushRect = null; |
| exposeEvent = null; |
| idleLock = null; |
| |
| /* Save window trim caches */ |
| String userHome = System.getProperty ("user.home"); //$NON-NLS-1$ |
| if (userHome != null) { |
| File dir = new File (userHome, ".swt"); |
| if ((dir.exists () && dir.isDirectory ()) || dir.mkdirs ()) { |
| File file = new File (dir, "trims.prefs"); |
| Properties props = new Properties (); |
| StringBuilder buf = new StringBuilder (); |
| for (int w : trimWidths) buf.append (w).append (' '); |
| props.put ("trimWidths", buf.toString ()); |
| buf = new StringBuilder(); |
| for (int h : trimHeights) buf.append (h).append (' '); |
| props.put ("trimHeights", buf.toString ()); |
| try (FileOutputStream fos = new FileOutputStream (file)){ |
| props.store (fos, null); |
| } catch (IOException e) { |
| // skip saving trim caches |
| } |
| } |
| } |
| } |
| |
| /** |
| * 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; |
| } |
| |
| long removeGdkEvent () { |
| if (gdkEventCount == 0) return 0; |
| long event = gdkEvents [0]; |
| --gdkEventCount; |
| System.arraycopy (gdkEvents, 1, gdkEvents, 0, gdkEventCount); |
| System.arraycopy (gdkEventWidgets, 1, gdkEventWidgets, 0, gdkEventCount); |
| gdkEvents [gdkEventCount] = 0; |
| gdkEventWidgets [gdkEventCount] = null; |
| if (gdkEventCount == 0) { |
| gdkEvents = null; |
| gdkEventWidgets = null; |
| } |
| return event; |
| } |
| |
| void removeIdleProc () { |
| synchronized (idleLock) { |
| if (idleHandle != 0) OS.g_source_remove (idleHandle); |
| idleNeeded = false; |
| idleHandle = 0; |
| } |
| } |
| /** |
| * 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 removeMouseHoverTimeout (long handle) { |
| if (handle != mouseHoverHandle) return; |
| if (mouseHoverId != 0) OS.g_source_remove (mouseHoverId); |
| mouseHoverId = 0; |
| mouseHoverHandle = 0; |
| } |
| |
| void removePopup (Menu menu) { |
| if (popups == null) return; |
| for (int i=0; i<popups.length; i++) { |
| if (popups [i] == menu) { |
| popups [i] = null; |
| return; |
| } |
| } |
| } |
| |
| Widget removeWidget (long handle) { |
| if (handle == 0) return null; |
| lastWidget = null; |
| Widget widget = null; |
| int index; |
| long data = OS.g_object_get_qdata (handle, SWT_OBJECT_INDEX) - 1; |
| if(data < 0 || data > Integer.MAX_VALUE) { |
| SWT.error(SWT.ERROR_INVALID_RETURN_VALUE, null, ". g_object_get_qdata returned unexpected index value" + debugInfoForIndex(data)); |
| } |
| index = (int)data; |
| if (0 <= index && index < widgetTable.length) { |
| widget = widgetTable [index]; |
| widgetTable [index] = null; |
| indexTable [index] = freeSlot; |
| freeSlot = index; |
| OS.g_object_set_qdata (handle, SWT_OBJECT_INDEX, 0); |
| |
| if(widget == null) { |
| SWT.error(SWT.ERROR_INVALID_ARGUMENT, null, ". Widget already released" + debugInfoForIndex(index)); |
| } |
| } else { |
| SWT.error(SWT.ERROR_INVALID_ARGUMENT, null, ". Invalid index for handle " + handle + debugInfoForIndex(index)); |
| } |
| return widget; |
| } |
| |
| String debugInfoForIndex(long index) { |
| String s = ", index: " + index; |
| int idx = (int) index; |
| if (idx >= 0 && idx < widgetTable.length) { |
| s += ", current value at: " + widgetTable[idx]; |
| } |
| s += dumpWidgetTableInfo(); |
| return s; |
| } |
| |
| void dpiChanged(int newScaleFactor) { |
| DPIUtil.setDeviceZoom (DPIUtil.mapDPIToZoom(getDPI().x * newScaleFactor)); |
| Shell[] shells = getShells(); |
| for (int i = 0; i < shells.length; i++) { |
| shells[i].layout(true, true); |
| } |
| } |
| |
| String dumpWidgetTableInfo() { |
| StringBuilder sb = new StringBuilder(", table size: "); |
| sb.append(widgetTable.length); |
| IdentityHashMap<Widget, Collection<Integer>> disposed = new IdentityHashMap<>(); |
| for (int i = 0; i < widgetTable.length; i++) { |
| Widget w = widgetTable[i]; |
| if (w != null && w.isDisposed()) { |
| Collection<Integer> list = disposed.get(w); |
| if (list == null) { |
| list = new ArrayList<>(); |
| disposed.put(w, list); |
| } |
| list.add(Integer.valueOf(i)); |
| } |
| } |
| if (!disposed.isEmpty()) { |
| sb.append(", leaked elements:"); |
| Set<Entry<Widget,Collection<Integer>>> set = disposed.entrySet(); |
| for (Entry<Widget, Collection<Integer>> entry : set) { |
| sb.append(" ").append(entry.getKey()).append(" at ").append(entry.getValue()).append(","); |
| } |
| } |
| return sb.toString(); |
| } |
| |
| boolean runAsyncMessages (boolean all) { |
| return synchronizer.runAsyncMessages (all); |
| } |
| |
| boolean runDeferredEvents () { |
| boolean run = false; |
| /* |
| * Run deferred events. This code is always |
| * called in the Display's thread so it must |
| * be re-enterant but need not be synchronized. |
| */ |
| while (eventQueue != null) { |
| |
| /* Take an event off the queue */ |
| Event event = eventQueue [0]; |
| if (event == null) break; |
| int length = eventQueue.length; |
| System.arraycopy (eventQueue, 1, eventQueue, 0, --length); |
| eventQueue [length] = null; |
| |
| /* Run the event */ |
| Widget widget = event.widget; |
| if (widget != null && !widget.isDisposed ()) { |
| Widget item = event.item; |
| if (item == null || !item.isDisposed ()) { |
| run = true; |
| widget.sendEvent (event); |
| } |
| } |
| |
| /* |
| * At this point, the event queue could |
| * be null due to a recursive invokation |
| * when running the event. |
| */ |
| } |
| |
| /* Clear the queue */ |
| eventQueue = null; |
| return run; |
| } |
| |
| boolean runDeferredLayouts () { |
| if (layoutDeferredCount != 0) { |
| Composite[] temp = layoutDeferred; |
| int count = layoutDeferredCount; |
| layoutDeferred = null; |
| layoutDeferredCount = 0; |
| for (int i = 0; i < count; i++) { |
| Composite comp = temp[i]; |
| if (!comp.isDisposed()) comp.setLayoutDeferred (false); |
| } |
| update (); |
| 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; |
| } |
| |
| boolean runSettings () { |
| if (!runSettings) return false; |
| runSettings = false; |
| saveResources (); |
| initializeSystemColors (); |
| sendEvent (SWT.Settings, null); |
| Shell [] shells = getShells (); |
| for (int i=0; i<shells.length; i++) { |
| Shell shell = shells [i]; |
| if (!shell.isDisposed ()) { |
| shell.fixStyle (); |
| shell.redraw (true); |
| shell.layout (true, true); |
| } |
| } |
| return 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; |
| } |
| |
| /** |
| * 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; |
| } |
| |
| /** |
| * 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) { |
| setCursorLocation(new Point (x, y)); |
| } |
| |
| void setCursorLocationInPixels (Point location) { |
| long gdkDisplay = GDK.gdk_display_get_default(); |
| long gdkPointer = GDK.gdk_get_pointer(gdkDisplay); |
| if (GTK.GTK4) { |
| //TODO: GTK4 no gdk_device_warp |
| } else { |
| long gdkScreen = GDK.gdk_screen_get_default(); |
| GDK.gdk_device_warp(gdkPointer, gdkScreen, location.x, location.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); |
| point = DPIUtil.autoScaleUp(point); |
| setCursorLocationInPixels(point); |
| } |
| |
| /** |
| * 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 (DISPATCH_EVENT_KEY)) { |
| if (value == null || value instanceof int []) { |
| dispatchEvents = (int []) value; |
| if (value == null) putGdkEvents (); |
| return; |
| } |
| } |
| if (key.equals (SET_MODAL_DIALOG)) { |
| setModalDialog ((Dialog) value); |
| return; |
| } |
| if (key.equals (ADD_WIDGET_KEY)) { |
| Object [] data = (Object []) value; |
| long handle = ((LONG) data [0]).value; |
| Widget widget = (Widget) data [1]; |
| if (widget != null) { |
| addWidget (handle, widget); |
| } else { |
| removeWidget (handle); |
| } |
| } |
| if (key.equals (ADD_IDLE_PROC_KEY)) { |
| addIdleProc (); |
| return; |
| } |
| if (key.equals (REMOVE_IDLE_PROC_KEY)) { |
| removeIdleProc (); |
| return; |
| } |
| if (key.equals (EXTERNAL_EVENT_LOOP_KEY)) { |
| Boolean data = (Boolean) value; |
| externalEventLoop = 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; |
| } |
| |
| long setDirectionProc (long widget, long direction) { |
| GTK.gtk_widget_set_direction (widget, (int)direction); |
| if (!GTK.GTK4 && GTK.GTK_IS_MENU_ITEM (widget)) { |
| long submenu = GTK.gtk_menu_item_get_submenu (widget); |
| if (submenu != 0) { |
| GTK.gtk_widget_set_direction (submenu, (int)direction); |
| GTK.gtk_container_forall (submenu, setDirectionProc, direction); |
| } |
| } |
| if (GTK.GTK_IS_CONTAINER (widget)) { |
| GTK.gtk_container_forall (widget, setDirectionProc, direction); |
| } |
| return 0; |
| } |
| |
| 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; |
| } |
| |
| void showIMWindow (Control control) { |
| imControl = control; |
| if (preeditWindow == 0) { |
| preeditWindow = GTK.gtk_window_new (GTK.GTK_WINDOW_POPUP); |
| if (preeditWindow == 0) error (SWT.ERROR_NO_HANDLES); |
| preeditLabel = GTK.gtk_label_new (null); |
| if (preeditLabel == 0) error (SWT.ERROR_NO_HANDLES); |
| |
| if (GTK.GTK4) { |
| GTK.gtk_window_set_child(preeditWindow, preeditLabel); |
| } else { |
| GTK.gtk_container_add (preeditWindow, preeditLabel); |
| GTK.gtk_widget_show (preeditLabel); |
| } |
| } |
| long [] preeditString = new long [1]; |
| long [] pangoAttrs = new long [1]; |
| long imHandle = control.imHandle (); |
| GTK.gtk_im_context_get_preedit_string (imHandle, preeditString, pangoAttrs, null); |
| if (preeditString [0] != 0 && C.strlen (preeditString [0]) > 0) { |
| Control widget = control.findBackgroundControl (); |
| if (widget == null) widget = control; |
| widget.setBackgroundGdkRGBA (preeditWindow, control.getBackgroundGdkRGBA()); |
| widget.setForegroundGdkRGBA (preeditLabel, control.getForegroundGdkRGBA()); |
| widget.setFontDescription (preeditLabel, control.getFontDescription ()); |
| if (pangoAttrs [0] != 0) GTK.gtk_label_set_attributes (preeditLabel, pangoAttrs[0]); |
| GTK.gtk_label_set_text (preeditLabel, preeditString [0]); |
| Point point = control.toDisplayInPixels (control.getIMCaretPos ()); |
| GTK.gtk_window_move (preeditWindow, point.x, point.y); |
| GtkRequisition requisition = new GtkRequisition (); |
| GTK.gtk_widget_get_preferred_size (preeditLabel, requisition, null); |
| GTK.gtk_window_resize (preeditWindow, requisition.width, requisition.height); |
| GTK.gtk_widget_show (preeditWindow); |
| } else { |
| GTK.gtk_widget_hide (preeditWindow); |
| } |
| if (preeditString [0] != 0) OS.g_free (preeditString [0]); |
| if (pangoAttrs [0] != 0) OS.pango_attr_list_unref (pangoAttrs [0]); |
| } |
| |
| /** |
| * Causes the user-interface thread to <em>sleep</em> (that is, |
| * to be put in a state where it does not consume CPU cycles) |
| * until an event is received or it is otherwise awakened. |
| * |
| * @return <code>true</code> if an event requiring dispatching was placed on the queue. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see #wake |
| */ |
| public boolean sleep () { |
| checkDevice (); |
| if (gdkEventCount == 0) { |
| gdkEvents = null; |
| gdkEventWidgets = null; |
| } |
| if (settingsChanged) { |
| settingsChanged = false; |
| runSettings = true; |
| return false; |
| } |
| if (getMessageCount () != 0) return true; |
| sendPreExternalEventDispatchEvent (); |
| if (fds == 0) { |
| allocated_nfds = 2; |
| fds = OS.g_malloc (OS.GPollFD_sizeof () * allocated_nfds); |
| } |
| max_priority [0] = timeout [0] = 0; |
| long context = OS.g_main_context_default (); |
| boolean result = false; |
| do { |
| if (OS.g_main_context_acquire (context)) { |
| result = OS.g_main_context_prepare (context, max_priority); |
| int nfds; |
| while ((nfds = OS.g_main_context_query (context, max_priority [0], timeout, fds, allocated_nfds)) > allocated_nfds) { |
| OS.g_free (fds); |
| allocated_nfds = nfds; |
| fds = OS.g_malloc (OS.GPollFD_sizeof() * allocated_nfds); |
| } |
| long poll = OS.g_main_context_get_poll_func (context); |
| if (poll != 0) { |
| if (nfds > 0 || timeout [0] != 0) { |
| /* |
| * Bug in GTK. For some reason, g_main_context_wakeup() may |
| * fail to wake up the UI thread from the polling function. |
| * The fix is to sleep for a maximum of 50 milliseconds. |
| */ |
| if (timeout [0] < 0) timeout [0] = 50; |
| |
| wake = false; |
| OS.Call (poll, fds, nfds, timeout [0]); |
| } |
| } |
| OS.g_main_context_check (context, max_priority [0], fds, nfds); |
| OS.g_main_context_release (context); |
| } |
| } while (!result && getMessageCount () == 0 && !wake); |
| wake = false; |
| sendPostExternalEventDispatchEvent (); |
| return true; |
| } |
| |
| /** |
| * Causes the <code>run()</code> method of the runnable to |
| * be invoked by the user-interface thread after the specified |
| * number of milliseconds have elapsed. If milliseconds is less |
| * than zero, the runnable is not executed. |
| * <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 int [4]; |
| int index = 0; |
| while (index < timerList.length) { |
| if (timerList [index] == runnable) break; |
| index++; |
| } |
| if (index != timerList.length) { |
| OS.g_source_remove (timerIds [index]); |
| timerList [index] = null; |
| timerIds [index] = 0; |
| if (milliseconds < 0) return; |
| } else { |
| if (milliseconds < 0) return; |
| index = 0; |
| while (index < timerList.length) { |
| if (timerList [index] == null) break; |
| index++; |
| } |
| if (index == timerList.length) { |
| Runnable [] newTimerList = new Runnable [timerList.length + 4]; |
| System.arraycopy (timerList, 0, newTimerList, 0, timerList.length); |
| timerList = newTimerList; |
| int [] newTimerIds = new int [timerIds.length + 4]; |
| System.arraycopy (timerIds, 0, newTimerIds, 0, timerIds.length); |
| timerIds = newTimerIds; |
| } |
| } |
| int timerId = OS.g_timeout_add (milliseconds, timerProc, index); |
| if (timerId != 0) { |
| timerIds [index] = timerId; |
| timerList [index] = runnable; |
| } |
| } |
| |
| long timerProc (long i) { |
| if (timerList == null) return 0; |
| int index = (int)i; |
| if (0 <= index && index < timerList.length) { |
| Runnable runnable = timerList [index]; |
| timerList [index] = null; |
| timerIds [index] = 0; |
| if (runnable != null) { |
| try { |
| runnable.run (); |
| } catch (RuntimeException exception) { |
| runtimeExceptionHandler.accept (exception); |
| } catch (Error exception) { |
| errorHandler.accept (exception); |
| } |
| } |
| } |
| return 0; |
| } |
| |
| long caretProc (long clientData) { |
| caretId = 0; |
| if (currentCaret == null) { |
| return 0; |
| } |
| if (currentCaret.blinkCaret()) { |
| int blinkRate = currentCaret.blinkRate; |
| if (blinkRate == 0) return 0; |
| /* |
| * blink is set to true so that when gtk_draw() is called, we know it is the correct |
| * state to draw/redraw the caret. See Bug 517487. |
| */ |
| currentCaret.getParent().blink = true; |
| caretId = OS.g_timeout_add (blinkRate, caretProc, 0); |
| } else { |
| currentCaret = null; |
| } |
| return 0; |
| } |
| |
| /* |
| * Causes the caretProc method timing interval to be reset. This is useful as the blink rate |
| * intervals should always reset when the caret is moved. See Bug 517487. |
| */ |
| void resetCaretTiming() { |
| if (caretId != 0) { |
| OS.g_source_remove(caretId); |
| caretId = OS.g_timeout_add(currentCaret.blinkRate, caretProc, 0); |
| } |
| } |
| |
| long sizeAllocateProc (long handle, long arg0, long user_data) { |
| Widget widget = getWidget (user_data); |
| if (widget == null) return 0; |
| return widget.sizeAllocateProc (handle, arg0, user_data); |
| } |
| |
| long sizeRequestProc (long handle, long arg0, long user_data) { |
| Widget widget = getWidget (user_data); |
| if (widget == null) return 0; |
| return widget.sizeRequestProc (handle, arg0, user_data); |
| } |
| |
| 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 (errorImage != null) resources [resourceCount++] = errorImage; |
| if (infoImage != null) resources [resourceCount++] = infoImage; |
| if (questionImage != null) resources [resourceCount++] = questionImage; |
| if (warningImage != null) resources [resourceCount++] = warningImage; |
| errorImage = infoImage = questionImage = warningImage = 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); |
| } |
| } |
| |
| void setCurrentCaret (Caret caret) { |
| if (caretId != 0) OS.g_source_remove(caretId); |
| caretId = 0; |
| currentCaret = caret; |
| if (caret == null) return; |
| int blinkRate = currentCaret.blinkRate; |
| caretId = OS.g_timeout_add (blinkRate, caretProc, 0); |
| } |
| |
| long shellMapProc (long handle, long arg0, long user_data) { |
| Widget widget = getWidget (handle); |
| if (widget == null) return 0; |
| return widget.shellMapProc (handle, arg0, user_data); |
| } |
| |
| long signalProc (long gobject, long arg1, long user_data) { |
| switch((int)user_data) { |
| case STYLE_UPDATED: |
| settingsChanged = true; |
| break; |
| } |
| 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 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; |
| synchronized (idleLock) { |
| if (idleNeeded && idleHandle == 0) { |
| //NOTE: calling unlocked function in OS |
| idleHandle = OS.g_idle_add (idleProc, 0); |
| } |
| } |
| } |
| synchronizer.syncExec (runnable); |
| } |
| |
| static int translateKey (int key) { |
| for (int i=0; i<KeyTable.length; i++) { |
| if (KeyTable [i] [0] == key) return KeyTable [i] [1]; |
| } |
| return 0; |
| } |
| |
| static int untranslateKey (int key) { |
| for (int i=0; i<KeyTable.length; i++) { |
| if (KeyTable [i] [1] == key) return KeyTable [i] [0]; |
| } |
| return 0; |
| } |
| |
| /** |
| * Forces all outstanding paint requests for the display |
| * to be processed before this method returns. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see Control#update() |
| */ |
| public void update () { |
| checkDevice (); |
| flushExposes (0, 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.g_main_context_wakeup (0); |
| wake = true; |
| } |
| |
| long enterMotionScrollProc (long controller, double x, double y, long user_data) { |
| long handle = GTK.gtk_event_controller_get_widget(controller); |
| Widget widget = getWidget (handle); |
| if (widget == null) return 0; |
| return widget.enterMotionScrollProc(controller, handle, x, y, user_data); |
| } |
| |
| long focusProc (long controller, long user_data) { |
| long handle = GTK.gtk_event_controller_get_widget(controller); |
| Widget widget = getWidget (handle); |
| if (widget == null) return 0; |
| return widget.focusProc(controller, handle, user_data); |
| } |
| |
| long keyPressReleaseProc (long controller, int keyval, int keycode, int state, long user_data) { |
| long handle = GTK.gtk_event_controller_get_widget(controller); |
| Widget widget = getWidget (handle); |
| if (widget == null) return 0; |
| return widget.keyPressReleaseProc(controller, handle, keyval, keycode, state, user_data); |
| } |
| |
| long gesturePressReleaseProc (long gesture, int n_press, double x, double y, long user_data) { |
| long handle = GTK.gtk_event_controller_get_widget(gesture); |
| Widget widget = getWidget (handle); |
| if (widget == null) return 0; |
| return widget.gesturePressReleaseProc (gesture, n_press, x, y, user_data); |
| } |
| |
| long leaveProc (long controller, long user_data) { |
| long handle = GTK.gtk_event_controller_get_widget(controller); |
| Widget widget = getWidget (handle); |
| if (widget == null) return 0; |
| return widget.leaveProc(controller, handle, user_data); |
| } |
| |
| void activateProc(long action, long parameter, long user_data) { |
| Widget widget = getWidget(user_data); |
| if(widget == null) return; |
| |
| widget.gtk_activate(user_data); |
| } |
| |
| void resizeProc(long handle, int width, int height) { |
| Widget widget = getWidget(handle); |
| if (widget != null) widget.gtk_size_allocate(handle, 0); |
| } |
| |
| long notifyProc (long object, long param_spec, long user_data) { |
| Widget widget = getWidget (object); |
| if (widget == null) { |
| widget = getWidget (user_data); |
| if (widget == null) { |
| return 0; |
| } else { |
| /* |
| * There is a corner case where the connected handle is actually |
| * a GdkSurface. |
| */ |
| return widget.notifyProc(object, param_spec, Widget.NOTIFY_STATE); |
| } |
| } |
| return widget.notifyProc(object, param_spec, user_data); |
| } |
| |
| boolean changeValue (long handle, int scroll, double value, long user_data) { |
| Widget widget = getWidget (handle); |
| if (widget == null) return false; |
| return widget.gtk_change_value(handle, scroll, value, user_data); |
| } |
| |
| long windowProc (long handle, long user_data) { |
| Widget widget = getWidget (handle); |
| if (widget == null) return 0; |
| return widget.windowProc (handle, user_data); |
| } |
| |
| long windowProc (long handle, long arg0, long user_data) { |
| Widget widget = getWidget (handle); |
| if (widget == null) return 0; |
| return widget.windowProc (handle, arg0, user_data); |
| } |
| |
| long windowProc (long handle, long arg0, long arg1, long user_data) { |
| Widget widget = getWidget (handle); |
| if (widget == null) return 0; |
| return widget.windowProc (handle, arg0, arg1, user_data); |
| } |
| |
| long windowProc (long handle, long arg0, long arg1, long arg2, long user_data) { |
| Widget widget = getWidget (handle); |
| if (widget == null) return 0; |
| return widget.windowProc (handle, arg0, arg1, arg2, user_data); |
| } |
| |
| long windowProc (long handle, long arg0, long arg1, long arg2, long arg3, long user_data) { |
| Widget widget = getWidget (handle); |
| if (widget == null) return 0; |
| return widget.windowProc (handle, arg0, arg1, arg2, arg3, user_data); |
| } |
| |
| long windowTimerProc (long handle) { |
| Widget widget = getWidget (handle); |
| if (widget == null) return 0; |
| return widget.timerProc (handle); |
| } |
| |
| /** |
| * Gets the current cursor position relative to the upper left corner of the window. |
| * Available to GTK3 implementations only. |
| * |
| * @return the cursor position to <b>x</b> & <b>y</b>. Return value of the function is the window pointer underneath the cursor, can be NULL. |
| */ |
| long getWindowPointerPosition(long window, int[] x, int[] y, int[] mask) { |
| long display = 0; |
| |
| if (window != 0) { |
| display = GDK.gdk_window_get_display(window); |
| } else { |
| window = GDK.gdk_get_default_root_window(); |
| display = GDK.gdk_window_get_display(window); |
| } |
| |
| long pointer = GDK.gdk_get_pointer(display); |
| return GDK.gdk_window_get_device_position(window, pointer, x, y, mask); |
| } |
| |
| /** |
| * Gets the current cursor position relative to the upper left corner of the surface. |
| * Available to GTK4 implementations only. |
| */ |
| void getPointerPosition(double[] x, double[] y) { |
| long display = GDK.gdk_display_get_default(); |
| long seat = GDK.gdk_display_get_default_seat(display); |
| long pointer = GDK.gdk_seat_get_pointer(seat); |
| |
| GDK.gdk_device_get_surface_at_position(pointer, x, y); |
| } |
| |
| long gdk_device_get_window_at_position (int[] win_x, int[] win_y) { |
| long display = GDK.gdk_display_get_default (); |
| long device = GDK.gdk_get_pointer(display); |
| return GDK.gdk_device_get_window_at_position (device, win_x, win_y); |
| } |
| |
| long gdk_device_get_surface_at_position (double[] win_x, double[] win_y) { |
| long display = GDK.gdk_display_get_default (); |
| long device = GDK.gdk_get_pointer(display); |
| return GDK.gdk_device_get_surface_at_position (device, win_x, win_y); |
| } |
| |
| static int _getDeviceZoom (long monitor_num) { |
| /* |
| * We can hard-code 96 as gdk_screen_get_resolution will always return -1 |
| * if gdk_screen_set_resolution has not been called. |
| */ |
| int dpi = 96; |
| if (GTK.GTK_VERSION >= OS.VERSION(3, 22, 0)) { |
| long display = GDK.gdk_display_get_default(); |
| long monitor = GDK.gdk_display_get_monitor_at_point(display, 0, 0); |
| int scale = GDK.gdk_monitor_get_scale_factor(monitor); |
| dpi = dpi * scale; |
| } else { |
| long screen = GDK.gdk_screen_get_default (); |
| dpi = (int) GDK.gdk_screen_get_resolution (screen); |
| if (dpi <= 0) dpi = 96; // gdk_screen_get_resolution returns -1 in case of error |
| int scale = GDK.gdk_screen_get_monitor_scale_factor (screen, (int) monitor_num); |
| dpi = dpi * scale; |
| } |
| return DPIUtil.mapDPIToZoom (dpi); |
| } |
| } |
