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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Display.java')
-rw-r--r--bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Display.java1516
1 files changed, 0 insertions, 1516 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Display.java b/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Display.java
deleted file mode 100644
index 6512842431..0000000000
--- a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Display.java
+++ /dev/null
@@ -1,1516 +0,0 @@
-package org.eclipse.swt.widgets;
-
-/*
- * (c) Copyright IBM Corp. 2000, 2001.
- * All Rights Reserved
- */
-
-import org.eclipse.swt.*;
-import org.eclipse.swt.internal.*;
-import org.eclipse.swt.internal.gtk.*;
-import org.eclipse.swt.graphics.*;
-
-/**
- * Instances of this class are responsible for managing the
- * connection between SWT and the underlying operating
- * system. Their most important function is to implement
- * the SWT event loop in terms of the platform event model.
- * They also provide various methods for accessing information
- * about the operating system, and have overall control over
- * the operating system resources which SWT allocates.
- * <p>
- * Applications which are built with SWT will <em>almost always</em>
- * require only a single display. In particular, some platforms
- * which SWT supports will not allow more than one <em>active</em>
- * display. In other words, some platforms do not support
- * creating a new display if one already exists that has not been
- * sent the <code>dispose()</code> message.
- * <p>
- * In SWT, the thread which creates a <code>Display</code>
- * instance is distinguished as the <em>user-interface thread</em>
- * for that display.
- * </p>
- * The user-interface thread for a particular display has the
- * following special attributes:
- * <ul>
- * <li>
- * The event loop for that display must be run from the thread.
- * </li>
- * <li>
- * Some SWT API methods (notably, most of the public methods in
- * <code>Widget</code> and its subclasses), may only be called
- * from the thread. (To support multi-threaded user-interface
- * applications, class <code>Display</code> provides inter-thread
- * communication methods which allow threads other than the
- * user-interface thread to request that it perform operations
- * on their behalf.)
- * </li>
- * <li>
- * The thread is not allowed to construct other
- * <code>Display</code>s until that display has been disposed.
- * (Note that, this is in addition to the restriction mentioned
- * above concerning platform support for multiple displays. Thus,
- * the only way to have multiple simultaneously active displays,
- * even on platforms which support it, is to have multiple threads.)
- * </li>
- * </ul>
- * Enforcing these attributes allows SWT to be implemented directly
- * on the underlying operating system's event model. This has
- * numerous benefits including smaller footprint, better use of
- * resources, safer memory management, clearer program logic,
- * better performance, and fewer overall operating system threads
- * required. The down side however, is that care must be taken
- * (only) when constructing multi-threaded applications to use the
- * inter-thread communication mechanisms which this class provides
- * when required.
- * </p><p>
- * All SWT API methods which may only be called from the user-interface
- * thread are distinguished in their documentation by indicating that
- * they throw the "<code>ERROR_THREAD_INVALID_ACCESS</code>"
- * SWT exception.
- * </p><p>
- * IMPORTANT: This class is <em>not</em> intended to be subclassed.
- * </p>
- *
- * @see #syncExec
- * @see #asyncExec
- * @see #wake
- * @see #readAndDispatch
- * @see #sleep
- * @see #dispose
- */
-
-public class Display extends Device {
-
- /* Events Dispatching and Callback */
- Event [] eventQueue;
- int windowProc2, windowProc3, windowProc4, windowProc5;
- Callback windowCallback2, windowCallback3, windowCallback4, windowCallback5;
-
- /* Sync/Async Widget Communication */
- Synchronizer synchronizer = new Synchronizer (this);
- int messagesSize;
- RunnableLock [] messages;
- Object messageLock = new Object ();
- Thread thread = Thread.currentThread ();
-
- /* Display Shutdown */
- Runnable [] disposeList;
-
- /* Timers */
- int [] timerIDs;
- Runnable [] timerList;
- Callback timerCallback;
- int timerProc;
-
- /* Caret */
- Caret currentCaret;
- Callback caretCallback;
- int caretID, caretProc;
-
- /* Colors */
- Color NORMAL_fg, NORMAL_bg, NORMAL_dark, NORMAL_mid, NORMAL_light, NORMAL_text, NORMAL_base;
- Color ACTIVE_fg, ACTIVE_bg, ACTIVE_dark, ACTIVE_mid, ACTIVE_light, ACTIVE_text, ACTIVE_base;
- Color PRELIGHT_fg, PRELIGHT_bg, PRELIGHT_dark, PRELIGHT_mid, PRELIGHT_light, PRELIGHT_text, PRELIGHT_base;
- Color SELECTED_fg, SELECTED_bg, SELECTED_dark, SELECTED_mid, SELECTED_light, SELECTED_text, SELECTED_base;
- Color INSENSITIVE_fg, INSENSITIVE_bg, INSENSITIVE_dark, INSENSITIVE_mid, INSENSITIVE_light, INSENSITIVE_text, INSENSITIVE_base;
-
- /* Key Mappings */
- static final int [] [] KeyTable = {
-
- /* Keyboard and Mouse Masks */
- {OS.GDK_Alt_L, SWT.ALT},
- {OS.GDK_Alt_R, SWT.ALT},
- {OS.GDK_Shift_L, SWT.SHIFT},
- {OS.GDK_Shift_R, SWT.SHIFT},
- {OS.GDK_Control_L, SWT.CONTROL},
- {OS.GDK_Control_R, SWT.CONTROL},
-
- /* Non-Numeric Keypad Constants */
- {OS.GDK_Up, SWT.ARROW_UP},
- {OS.GDK_Down, SWT.ARROW_DOWN},
- {OS.GDK_Left, SWT.ARROW_LEFT},
- {OS.GDK_Right, SWT.ARROW_RIGHT},
- {OS.GDK_Page_Up, SWT.PAGE_UP},
- {OS.GDK_Page_Down, SWT.PAGE_DOWN},
- {OS.GDK_Home, SWT.HOME},
- {OS.GDK_End, SWT.END},
- {OS.GDK_Insert, SWT.INSERT},
-
- /* NOT CURRENTLY USED */
-// {OS.GDK_Delete, SWT.DELETE},
- {OS.GDK_Return, SWT.CR},
-
- /* Functions Keys */
- {OS.GDK_F1, SWT.F1},
- {OS.GDK_F2, SWT.F2},
- {OS.GDK_F3, SWT.F3},
- {OS.GDK_F4, SWT.F4},
- {OS.GDK_F5, SWT.F5},
- {OS.GDK_F6, SWT.F6},
- {OS.GDK_F7, SWT.F7},
- {OS.GDK_F8, SWT.F8},
- {OS.GDK_F9, SWT.F9},
- {OS.GDK_F10, SWT.F10},
- {OS.GDK_F11, SWT.F11},
- {OS.GDK_F12, SWT.F12},
-
- /* Numeric Keypad Constants */
- /* NOT CURRENTLY USED */
-// {OS.GDK_KP_Add, SWT.KP_PLUS},
-// {OS.GDK_KP_Subtract, SWT.KP_MINUS},
-// {OS.GDK_KP_Multiply, SWT.KP_TIMES},
-// {OS.GDK_KP_Divide, SWT.KP_DIVIDE},
-// {OS.GDK_KP_Decimal, SWT.KP_PERIOD},
-// {OS.GDK_KP_Enter, SWT.CR},
-// {OS.GDK_KP_0, SWT.KP_0},
-// {OS.GDK_KP_1, SWT.KP_1},
-// {OS.GDK_KP_2, SWT.KP_2},
-// {OS.GDK_KP_3, SWT.KP_3},
-// {OS.GDK_KP_4, SWT.KP_4},
-// {OS.GDK_KP_5, SWT.KP_5},
-// {OS.GDK_KP_6, SWT.KP_6},
-// {OS.GDK_KP_7, SWT.KP_7},
-// {OS.GDK_KP_8, SWT.KP_8},
-// {OS.GDK_KP_9, SWT.KP_9},
-
- };
-
- /* Multiple Displays. */
- static Display Default;
- static Display [] Displays = new Display [4];
-
- /* Package name */
- static final String PACKAGE_PREFIX = "org.eclipse.swt.widgets.";
- /* This code is intentionally commented.
- * ".class" can not be used on CLDC.
- */
- /*static {
- String name = Display.class.getName ();
- int index = name.lastIndexOf ('.');
- PACKAGE_NAME = name.substring (0, index + 1);
- }*/
-
- /* #define in gdkevents.h */
- static final int DOUBLE_CLICK_TIME = 250;
-
- /* Display Data */
- Object data;
- String [] keys;
- Object [] values;
-
- /*
- * TEMPORARY CODE. Install the runnable that
- * gets the current display. This code will
- * be removed in the future.
- */
- static {
- DeviceFinder = new Runnable () {
- public void run () {
- Device device = getCurrent ();
- if (device == null) {
- device = getDefault ();
- }
- setDevice (device);
- }
- };
- }
-
-/*
-* TEMPORARY CODE.
-*/
-static void setDevice (Device device) {
- CurrentDevice = device;
-}
-
-/**
- * Constructs a new instance of this class.
- * <p>
- * Note: The resulting display is marked as the <em>current</em>
- * display. If this is the first display which has been
- * constructed since the application started, it is also
- * marked as the <em>default</em> display.
- * </p>
- *
- * @exception SWTException <ul>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
- * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
- * </ul>
- *
- * @see #getCurrent
- * @see #getDefault
- * @see Widget#checkSubclass
- * @see Shell
- */
-public Display () {
- this (null);
-}
-
-public Display (DeviceData data) {
- super (data);
-}
-
-void addLast (RunnableLock entry) {
- synchronized (messageLock) {
- if (messages == null) messages = new RunnableLock [4];
- if (messagesSize == messages.length) {
- RunnableLock[] newMessages = new RunnableLock [messagesSize + 4];
- System.arraycopy (messages, 0, newMessages, 0, messagesSize);
- messages = newMessages;
- }
- messages [messagesSize++] = entry;
- }
-}
-
-/**
- * Causes the <code>run()</code> method of the runnable to
- * be invoked by the user-interface thread at the next
- * reasonable opportunity. The caller of this method continues
- * to run in parallel, and is not notified when the
- * runnable has completed.
- *
- * @param runnable code to run on the user-interface thread.
- *
- * @see #syncExec
- */
-public void asyncExec (Runnable runnable) {
- if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED);
- synchronizer.asyncExec (runnable);
-}
-
-/**
- * Causes the system hardware to emit a short sound
- * (if it supports this capability).
- */
-public void beep () {
- if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
- OS.gdk_beep();
- OS.gdk_flush();
-}
-
-protected void checkDevice () {
- if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
- if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED);
-}
-
-static synchronized void checkDisplay (Thread thread) {
- for (int i=0; i<Displays.length; i++) {
- if (Displays [i] != null && Displays [i].thread == thread) {
- SWT.error (SWT.ERROR_THREAD_INVALID_ACCESS);
- }
- }
-}
-
-protected void checkSubclass () {
- if (!isValidClass (getClass ())) error (SWT.ERROR_INVALID_SUBCLASS);
-}
-
-protected void create (DeviceData data) {
- checkSubclass ();
- checkDisplay(thread = Thread.currentThread ());
- createDisplay (data);
- register ();
- if (Default == null) Default = this;
-}
-
-synchronized void createDisplay (DeviceData data) {
- if (!OS.gtk_init_check (new int [] {0}, null)) {
- /*
- * This code is intentionally commented.
- */
-// disposed = true;
-// SWT.error (SWT.ERROR_DEVICE_DISPOSED);
- return;
- }
- OS.gdk_rgb_init ();
- int ptr = OS.gtk_check_version (1, 2, 8);
- if (ptr != 0) {
- System.out.println ("***WARNING: SWT requires GTK version 1.2.8 or greater");
- int length = OS.strlen (ptr);
- byte [] buffer = new byte [length];
- OS.memmove (buffer, ptr, length);
- System.out.println ("***WARNING: " + new String (Converter.mbcsToWcs (null, buffer)));
- }
-}
-
-synchronized void deregister () {
- for (int i=0; i<Displays.length; i++) {
- if (this == Displays [i]) Displays [i] = null;
- }
-}
-
-protected void destroy () {
- if (this == Default) Default = null;
- deregister ();
- destroyDisplay ();
-}
-
-void destroyDisplay () {
-}
-
-/**
- * Returns the display which the given thread is the
- * user-interface thread for, or null if the given thread
- * is not a user-interface thread for any display.
- *
- * @param thread the user-interface thread
- * @return the display for the given thread
- */
-public static synchronized Display findDisplay (Thread thread) {
- for (int i=0; i<Displays.length; i++) {
- Display display = Displays [i];
- if (display != null && display.thread == thread) {
- return display;
- }
- }
- return null;
-}
-
-/**
- * Causes the <code>run()</code> method of the runnable to
- * be invoked by the user-interface thread just before the
- * receiver is disposed.
- *
- * @param runnable code to run at dispose time.
- */
-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) {
- throw new SWTError (code);
-}
-
-/**
- * Given the operating system handle for a widget, returns
- * the instance of the <code>Widget</code> subclass which
- * represents it in the currently running application, if
- * such exists, or null if no matching widget can be found.
- *
- * @param handle the handle for the widget
- * @return the SWT widget that the handle represents
- *
- * @exception SWTException <ul>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public Widget findWidget (int handle) {
- checkDevice ();
- // In 0.058 and before, this used to go up the parent
- // chain if the handle was not found in the widget
- // table, up to the root. Now, we require that all
- // widgets register ALL their handles.
- // If somebody creates their own handles outside
- // SWT, it's their problem.
- return WidgetTable.get (handle);
-}
-
-/*
- * In SWT, we force all widgets to have real Gdk windows,
- * thus getting rid of the concept of "lightweight" widgets.
- * Given a GdkWindow, answer a handle to the GtkWidget realized
- * through that window.
- * If the argument is not the pointe rto a GdkWindow, the
- * universe will be left in an inconsistent state.
- */
-int findGtkWidgetByGdkWindow (int gdkWindow) {
- int[] pwidget = new int[1];
- OS.gdk_window_get_user_data(gdkWindow, pwidget);
- return pwidget[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>
- * </ul>
- */
-public Shell getActiveShell () {
- checkDevice ();
- Shell [] shells = getShells();
- for (int i=0; i<shells.length; i++) {
- if (shells [i].hasFocus) return shells [i];
- }
- return null;
-}
-
-/**
- * Returns a rectangle describing the receiver's size and location.
- *
- * @return the bounding rectangle
- *
- * @exception SWTException <ul>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public Rectangle getBounds () {
- checkDevice ();
- return new Rectangle(0, 0, OS.gdk_screen_width (), OS.gdk_screen_height ());
-}
-
-/**
- * Returns the display which the currently running thread is
- * the user-interface thread for, or null if the currently
- * running thread is not a user-interface thread for any display.
- *
- * @return the current display
- */
-public static synchronized Display getCurrent () {
- Thread current = Thread.currentThread ();
- for (int i=0; i<Displays.length; i++) {
- Display display = Displays [i];
- if (display != null && display.thread == current) return display;
- }
- return null;
-}
-
-/**
- * Returns the control which the on-screen pointer is currently
- * over top of, or null if it is not currently over one of the
- * controls built by the currently running application.
- *
- * @return the control under the cursor
- *
- * @exception SWTException <ul>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public Control getCursorControl () {
- checkDevice();
- int[] x = new int[1], y = new int[1];
- int cursorWindowHandle = OS.gdk_window_at_pointer(x,y);
- if (cursorWindowHandle==0) return null;
- int handle = findGtkWidgetByGdkWindow(cursorWindowHandle);
- if (handle==0) return null;
- return findControl(handle);
-}
-
-Control findControl(int h) {
- Widget w = findWidget(h);
- if (w==null) return null;
- if (w instanceof Control) return (Control)w;
- // w is something like an Item. Go for the parent
-
- GtkWidget widget = new GtkWidget();
- OS.memmove(widget, h, GtkWidget.sizeof);
- return findControl(widget.parent);
-}
-
-/**
- * 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>
- * </ul>
- */
-public Point getCursorLocation () {
- checkDevice ();
- int [] x = new int [1], y = new int [1];
- OS.gdk_window_get_pointer (0, x, y, 0);
- return new Point (x [0], y [0]);
-}
-
-/**
- * Returns the application defined property of the receiver
- * with the specified name, or null if it has not been set.
- * <p>
- * Applications may have associated arbitrary objects with the
- * receiver in this fashion. If the objects stored in the
- * properties need to be notified when the display is disposed
- * of, it is the application's responsibility provide a
- * <code>disposeExec()</code> handler which does so.
- * </p>
- *
- * @param key the name of the property
- * @return the value of the property or null if it has not been set
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the key is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see #setData
- * @see #disposeExec
- */
-public Object getData (String key) {
- checkDevice ();
- if (key == null) error (SWT.ERROR_NULL_ARGUMENT);
- if (keys == null) return null;
- for (int i=0; i<keys.length; i++) {
- if (keys [i].equals (key)) return values [i];
- }
- return null;
-}
-
-/**
- * Returns the application defined, display specific data
- * associated with the receiver, or null if it has not been
- * set. The <em>display specific data</em> is a single,
- * unnamed field that is stored with every display.
- * <p>
- * Applications may put arbitrary objects in this field. If
- * the object stored in the display specific data needs to
- * be notified when the display is disposed of, it is the
- * application's responsibility provide a
- * <code>disposeExec()</code> handler which does so.
- * </p>
- *
- * @return the display specific data
- *
- * @exception SWTException <ul>
- * <li>ERROR_THREAD_INVALID_ACCESS - when called from the wrong thread</li>
- * </ul>
- *
- * @see #setData
- * @see #disposeExec
- */
-public Object getData () {
- checkDevice ();
- return data;
-}
-/**
- * Returns a point whose x coordinate is the horizontal
- * dots per inch of the display, and whose y coordinate
- * is the vertical dots per inch of the display.
- *
- * @return the horizontal and vertical DPI
- *
- * @exception SWTException <ul>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public Point getDPI () {
- checkDevice ();
- int widthMM = OS.gdk_screen_width_mm ();
- int width = OS.gdk_screen_width ();
- // compute round(25.4 * width / widthMM)
- int dpi = Compatibility.round(254 * width, widthMM * 10);
- return new Point (dpi, dpi);
-}
-
-/**
- * Returns the default display. One is created (making the
- * thread that invokes this method its user-interface thread)
- * if it did not already exist.
- *
- * @return the default display
- */
-public static synchronized Display getDefault () {
- if (Default == null) Default = new Display ();
- return Default;
-}
-
-static boolean isValidClass (Class clazz) {
- String name = clazz.getName ();
- int index = name.lastIndexOf ('.');
- return name.substring (0, index + 1).equals (PACKAGE_PREFIX);
-}
-
-/**
- * Returns the 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>
- * </ul>
- */
-public int getDoubleClickTime () {
- checkDevice ();
- return DOUBLE_CLICK_TIME;
-}
-
-/**
- * Returns the control which currently has keyboard focus,
- * or null if keyboard events are not currently going to
- * any of the controls built by the currently running
- * application.
- *
- * @return the control under the cursor
- *
- * @exception SWTException <ul>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public Control getFocusControl () {
- checkDevice ();
- Shell active = getActiveShell();
- if (active==null) return null;
- return active.getFocusControl();
-}
-
-public int getDepth () {
- checkDevice ();
- GdkVisual visual = new GdkVisual ();
- OS.memmove(visual, OS.gdk_visual_get_system(), GdkVisual.sizeof);
- return visual.depth;
-}
-
-/**
- * Returns the maximum allowed depth of icons on this display.
- * On some platforms, this may be different than the actual
- * depth of the display.
- *
- * @return the maximum icon depth
- *
- * @exception SWTException <ul>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public int getIconDepth () {
- checkDevice ();
- return getDepth ();
-}
-
-/**
- * Returns an array containing all shells which have not been
- * disposed and have the receiver as their display.
- *
- * @return the receiver's shells
- *
- * @exception SWTException <ul>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public Shell [] getShells () {
- checkDevice ();
- int count = 0;
- Shell [] shells = WidgetTable.shells ();
- for (int i=0; i<shells.length; i++) {
- Shell shell = shells [i];
- if (!shell.isDisposed () && (this == shell.getDisplay ())) {
- count++;
- }
- }
- int index = 0;
- Shell [] result = new Shell [count];
- for (int i=0; i<shells.length; i++) {
- Shell shell = shells [i];
- if (!shell.isDisposed () && (this == shell.getDisplay ())) {
- result [index++] = shell;
- }
- }
- return result;
-}
-
-/**
- * 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
- */
-public Thread getSyncThread () {
- if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED);
- return synchronizer.syncThread;
-}
-
-/**
- * Returns the matching standard color for the given
- * constant, which should be one of the color constants
- * specified in class <code>SWT</code>. Any value other
- * than one of the SWT color constants which is passed
- * in will result in the color black. This color should
- * not be free'd because it was allocated by the system,
- * not the application.
- *
- * @param id the color constant
- * @return the matching color
- *
- * @exception SWTException <ul>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see SWT
- */
-public Color getSystemColor (int id) {
- checkDevice ();
- switch (id) {
- case SWT.COLOR_INFO_FOREGROUND: return NORMAL_fg;
- case SWT.COLOR_INFO_BACKGROUND: return NORMAL_bg;
-
- case SWT.COLOR_TITLE_FOREGROUND: return SELECTED_text;
- case SWT.COLOR_TITLE_BACKGROUND: return SELECTED_bg;
- case SWT.COLOR_TITLE_BACKGROUND_GRADIENT: return SELECTED_light;
- case SWT.COLOR_TITLE_INACTIVE_FOREGROUND: return INSENSITIVE_fg;
- case SWT.COLOR_TITLE_INACTIVE_BACKGROUND: return INSENSITIVE_bg;
- case SWT.COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT: return INSENSITIVE_light;
-
- case SWT.COLOR_WIDGET_DARK_SHADOW: return NORMAL_dark;
- case SWT.COLOR_WIDGET_NORMAL_SHADOW: return NORMAL_mid;
- case SWT.COLOR_WIDGET_LIGHT_SHADOW: return NORMAL_light;
- case SWT.COLOR_WIDGET_HIGHLIGHT_SHADOW: return NORMAL_light;
- case SWT.COLOR_WIDGET_BACKGROUND: return NORMAL_bg;
- case SWT.COLOR_WIDGET_FOREGROUND: return NORMAL_fg;
- case SWT.COLOR_WIDGET_BORDER: return super.getSystemColor (SWT.COLOR_BLACK);
-
- case SWT.COLOR_LIST_FOREGROUND: return super.getSystemColor (SWT.COLOR_BLACK);
- case SWT.COLOR_LIST_BACKGROUND: return super.getSystemColor (SWT.COLOR_WHITE);
- case SWT.COLOR_LIST_SELECTION: return SELECTED_bg;
- case SWT.COLOR_LIST_SELECTION_TEXT: return SELECTED_text;
- }
- return super.getSystemColor (id);
-}
-
-void initializeSystemColors() {
-
- /* Get the theme colors */
- GtkStyle defaultStyle = new GtkStyle();
- OS.memmove (defaultStyle, OS.gtk_widget_get_default_style(), GtkStyle.sizeof);
-
- GdkColor gdk_NORMAL_dark = new GdkColor();
- gdk_NORMAL_dark.pixel = defaultStyle.dark0_pixel;
- gdk_NORMAL_dark.red = defaultStyle.dark0_red;
- gdk_NORMAL_dark.green = defaultStyle.dark0_green;
- gdk_NORMAL_dark.blue = defaultStyle.dark0_blue;
- NORMAL_dark = Color.gtk_new(gdk_NORMAL_dark);
-
- GdkColor gdk_NORMAL_mid = new GdkColor();
- gdk_NORMAL_mid.pixel = defaultStyle.mid0_pixel;
- gdk_NORMAL_mid.red = defaultStyle.mid0_red;
- gdk_NORMAL_mid.green = defaultStyle.mid0_green;
- gdk_NORMAL_mid.blue = defaultStyle.mid0_blue;
- NORMAL_mid = Color.gtk_new(gdk_NORMAL_mid);
-
- GdkColor gdk_NORMAL_light = new GdkColor();
- gdk_NORMAL_light.pixel = defaultStyle.light0_pixel;
- gdk_NORMAL_light.red = defaultStyle.light0_red;
- gdk_NORMAL_light.green = defaultStyle.light0_green;
- gdk_NORMAL_light.blue = defaultStyle.light0_blue;
- NORMAL_light = Color.gtk_new(gdk_NORMAL_light);
-
- GdkColor gdk_NORMAL_fg = new GdkColor();
- gdk_NORMAL_fg.pixel = defaultStyle.fg0_pixel;
- gdk_NORMAL_fg.red = defaultStyle.fg0_red;
- gdk_NORMAL_fg.green = defaultStyle.fg0_green;
- gdk_NORMAL_fg.blue = defaultStyle.fg0_blue;
- NORMAL_fg = Color.gtk_new(gdk_NORMAL_fg);
-
- GdkColor gdk_NORMAL_bg = new GdkColor();
- gdk_NORMAL_bg.pixel = defaultStyle.bg0_pixel;
- gdk_NORMAL_bg.red = defaultStyle.bg0_red;
- gdk_NORMAL_bg.green = defaultStyle.bg0_green;
- gdk_NORMAL_bg.blue = defaultStyle.bg0_blue;
- NORMAL_bg = Color.gtk_new(gdk_NORMAL_bg);
-
- GdkColor gdk_NORMAL_text = new GdkColor();
- gdk_NORMAL_text.pixel = defaultStyle.text0_pixel;
- gdk_NORMAL_text.red = defaultStyle.text0_red;
- gdk_NORMAL_text.green = defaultStyle.text0_green;
- gdk_NORMAL_text.blue = defaultStyle.text0_blue;
- NORMAL_text = Color.gtk_new(gdk_NORMAL_text);
-
- GdkColor gdk_NORMAL_base = new GdkColor();
- gdk_NORMAL_base.pixel = defaultStyle.base0_pixel;
- gdk_NORMAL_base.red = defaultStyle.base0_red;
- gdk_NORMAL_base.green = defaultStyle.base0_green;
- gdk_NORMAL_base.blue = defaultStyle.base0_blue;
- NORMAL_base = Color.gtk_new(gdk_NORMAL_base);
-
- GdkColor gdk_SELECTED_text = new GdkColor();
- gdk_SELECTED_text.pixel = defaultStyle.text3_pixel;
- gdk_SELECTED_text.red = defaultStyle.text3_red;
- gdk_SELECTED_text.green = defaultStyle.text3_green;
- gdk_SELECTED_text.blue = defaultStyle.text3_blue;
- SELECTED_text = Color.gtk_new(gdk_SELECTED_text);
-
- GdkColor gdk_SELECTED_bg = new GdkColor();
- gdk_SELECTED_bg.pixel = defaultStyle.bg3_pixel;
- gdk_SELECTED_bg.red = defaultStyle.bg3_red;
- gdk_SELECTED_bg.green = defaultStyle.bg3_green;
- gdk_SELECTED_bg.blue = defaultStyle.bg3_blue;
- SELECTED_bg = Color.gtk_new(gdk_SELECTED_bg);
-
- GdkColor gdk_SELECTED_base = new GdkColor();
- gdk_SELECTED_base.pixel = defaultStyle.base3_pixel;
- gdk_SELECTED_base.red = defaultStyle.base3_red;
- gdk_SELECTED_base.green = defaultStyle.base3_green;
- gdk_SELECTED_base.blue = defaultStyle.base3_blue;
- SELECTED_base = Color.gtk_new(gdk_SELECTED_base);
-
- GdkColor gdk_SELECTED_light = new GdkColor();
- gdk_SELECTED_light.pixel = defaultStyle.light3_pixel;
- gdk_SELECTED_light.red = defaultStyle.light3_red;
- gdk_SELECTED_light.green = defaultStyle.light3_green;
- gdk_SELECTED_light.blue = defaultStyle.light3_blue;
- SELECTED_light = Color.gtk_new(gdk_SELECTED_light);
-
-
- GdkColor gdk_PRELIGHT_light = new GdkColor();
- gdk_PRELIGHT_light.pixel = defaultStyle.light2_pixel;
- gdk_PRELIGHT_light.red = defaultStyle.light2_red;
- gdk_PRELIGHT_light.green = defaultStyle.light2_green;
- gdk_PRELIGHT_light.blue = defaultStyle.light2_blue;
- PRELIGHT_light = Color.gtk_new(gdk_PRELIGHT_light);
-
- GdkColor gdk_INSENSITIVE_light = new GdkColor();
- gdk_INSENSITIVE_light.pixel = defaultStyle.light4_pixel;
- gdk_INSENSITIVE_light.red = defaultStyle.light4_red;
- gdk_INSENSITIVE_light.green = defaultStyle.light4_green;
- gdk_INSENSITIVE_light.blue = defaultStyle.light4_blue;
- INSENSITIVE_light = Color.gtk_new(gdk_INSENSITIVE_light);
-
- GdkColor gdk_INSENSITIVE_fg = new GdkColor();
- gdk_INSENSITIVE_fg.pixel = defaultStyle.fg4_pixel;
- gdk_INSENSITIVE_fg.red = defaultStyle.fg4_red;
- gdk_INSENSITIVE_fg.green = defaultStyle.fg4_green;
- gdk_INSENSITIVE_fg.blue = defaultStyle.fg4_blue;
- INSENSITIVE_fg = Color.gtk_new(gdk_INSENSITIVE_fg);
-
- GdkColor gdk_INSENSITIVE_bg = new GdkColor();
- gdk_INSENSITIVE_bg.pixel = defaultStyle.bg4_pixel;
- gdk_INSENSITIVE_bg.red = defaultStyle.bg4_red;
- gdk_INSENSITIVE_bg.green = defaultStyle.bg4_green;
- gdk_INSENSITIVE_bg.blue = defaultStyle.bg4_blue;
- INSENSITIVE_bg = Color.gtk_new(gdk_INSENSITIVE_bg);
-
-
-}
-
-/**
- * Returns a reasonable font for applications to use.
- * On some platforms, this will match the "default font"
- * or "system font" if such can be found. This font
- * should not be free'd because it was allocated by the
- * system, not the application.
- * <p>
- * Typically, applications which want the default look
- * should simply not set the font on the widgets they
- * create. Widgets are always created with the correct
- * default font for the class of user-interface component
- * they represent.
- * </p>
- *
- * @return a font
- *
- * @exception SWTException <ul>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public Font getSystemFont () {
- checkDevice ();
- GtkStyle style = new GtkStyle();
- OS.memmove (style, OS.gtk_widget_get_default_style(), GtkStyle.sizeof);
- int gdkFont = style.font; // gives a GdkFont*
- return Font.gtk_new (gdkFont);
-}
-
-/**
- * Returns the user-interface thread for the receiver.
- *
- * @return the receiver's user-interface thread
- */
-public Thread getThread () {
- if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED);
- return thread;
-}
-
-protected void init () {
- super.init ();
- initializeCallbacks ();
- initializeSystemColors ();
-}
-
-void initializeCallbacks () {
- windowCallback2 = new Callback (this, "windowProc", 2);
- windowProc2 = windowCallback2.getAddress ();
- if (windowProc2 == 0) SWT.error (SWT.ERROR_NO_MORE_CALLBACKS);
-
- windowCallback3 = new Callback (this, "windowProc", 3);
- windowProc3 = windowCallback3.getAddress ();
- if (windowProc3 == 0) SWT.error (SWT.ERROR_NO_MORE_CALLBACKS);
-
- windowCallback4 = new Callback (this, "windowProc", 4);
- windowProc4 = windowCallback4.getAddress ();
- if (windowProc4 == 0) SWT.error (SWT.ERROR_NO_MORE_CALLBACKS);
-
- windowCallback5 = new Callback (this, "windowProc", 5);
- windowProc5 = windowCallback5.getAddress ();
- if (windowProc5 == 0) SWT.error (SWT.ERROR_NO_MORE_CALLBACKS);
-
- timerCallback = new Callback (this, "timerProc", 2);
- timerProc = timerCallback.getAddress ();
- if (timerProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
-
- caretCallback = new Callback(this, "caretProc", 2);
- caretProc = caretCallback.getAddress();
- if (caretProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
-}
-
-/**
- * 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 handle the platform specific GC handle
- * @param data the platform specific GC data
- *
- * @private
- */
-public void internal_dispose_GC (int handle, GCData data) {
- OS.gdk_gc_destroy(handle);
-}
-
-/**
- * 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
- *
- * @private
- */
-public int internal_new_GC (GCData data) {
- if (isDisposed()) SWT.error(SWT.ERROR_DEVICE_DISPOSED);
- int root = OS.GDK_ROOT_PARENT();
- int gc = OS.gdk_gc_new(root);
- data.drawable = root;
- return gc;
-}
-
-boolean isValidThread () {
- return thread == Thread.currentThread ();
-}
-
-void postEvent (Event event) {
- /*
- * Place the event at the end of the event queue.
- * This code is always called in the Display's
- * thread so it must be re-enterant but does not
- * need to be synchronized.
- */
- if (eventQueue == null) eventQueue = new Event [4];
- int index = 0;
- int length = eventQueue.length;
- while (index < length) {
- if (eventQueue [index] == null) break;
- index++;
- }
- if (index == length) {
- Event [] newQueue = new Event [length + 4];
- System.arraycopy (eventQueue, 0, newQueue, 0, length);
- eventQueue = newQueue;
- }
- eventQueue [index] = event;
-}
-
-/**
- * Reads an event from the operating system's event queue,
- * dispatches it appropriately, and returns <code>true</code>
- * if there is potentially more work to do, or <code>false</code>
- * if the caller can sleep until another event is placed on
- * the event queue.
- * <p>
- * In addition to checking the system event queue, this method also
- * checks if any inter-thread messages (created by <code>syncExec()</code>
- * or <code>asyncExec()</code>) are waiting to be processed, and if
- * so handles them before returning.
- * </p>
- *
- * @return <code>false</code> if the caller can sleep upon return from this method
- *
- * @exception SWTException <ul>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see #sleep
- * @see #wake
- */
-public boolean readAndDispatch () {
- checkDevice ();
- int status = OS.gtk_events_pending ();
- if (status != 0) {
-// if ((status & OS.XtIMTimer) != 0) OS.XtAppProcessEvent (context, OS.XtIMTimer);
-// if ((status & OS.XtIMAlternateInput) != 0) OS.XtAppProcessEvent (context, OS.XtIMAlternateInput);
-// if ((status & OS.XtIMXEvent) != 0) {
-// OS.XtAppNextEvent (context, event);
-// OS.XtDispatchEvent (event);
-// }
-/* int eventPtr = OS.gdk_event_get();
- if (eventPtr != 0) {
- OS.gtk_main_do_event(eventPtr);
- }*/
- OS.gtk_main_iteration ();
- runDeferredEvents ();
- return true;
- }
- return runAsyncMessages ();
-}
-
-synchronized void register () {
- for (int i=0; i<Displays.length; i++) {
- if (Displays [i] == null) {
- Displays [i] = this;
- return;
- }
- }
- Display [] newDisplays = new Display [Displays.length + 4];
- System.arraycopy (Displays, 0, newDisplays, 0, Displays.length);
- newDisplays [Displays.length] = this;
- Displays = newDisplays;
-}
-
-protected void release () {
-
- /* Release shells */
- Shell [] shells = WidgetTable.shells ();
- for (int i=0; i<shells.length; i++) {
- Shell shell = shells [i];
- if (!shell.isDisposed ()) {
- if (this == shell.getDisplay ()) shell.dispose ();
- }
- }
- while (readAndDispatch ()) {};
-
- /* Run dispose list */
- if (disposeList != null) {
- for (int i=0; i<disposeList.length; i++) {
- if (disposeList [i] != null) disposeList [i].run ();
- }
- }
- disposeList = null;
-
- /* Release synchronizer */
- synchronizer.releaseSynchronizer ();
- synchronizer = null;
- releaseDisplay ();
-
- super.release ();
-}
-
-void releaseDisplay () {
- windowCallback2.dispose (); windowCallback2 = null;
- windowCallback3.dispose (); windowCallback3 = null;
- windowCallback4.dispose (); windowCallback4 = null;
- windowCallback5.dispose (); windowCallback5 = null;
-
- /* Dispose the caret callback */
- if (caretID != 0) OS.gtk_timeout_remove (caretID);
- caretID = caretProc = 0;
- caretCallback.dispose ();
- caretCallback = null;
-
- /* Dispose the timer callback */
- if (timerIDs != null) {
- for (int i=0; i<timerIDs.length; i++) {
- if (timerIDs [i] != 0) OS.gtk_timeout_remove (timerIDs [i]);
- }
- }
- timerIDs = null;
- timerList = null;
- timerProc = 0;
- timerCallback.dispose ();
- timerCallback = null;
-
- messages = null; messageLock = null; thread = null;
- messagesSize = windowProc2 = windowProc3 = windowProc4 = windowProc5 = 0;
-
- NORMAL_fg = NORMAL_bg = NORMAL_dark = NORMAL_mid = NORMAL_light = NORMAL_text = NORMAL_base =
- ACTIVE_fg = ACTIVE_bg = ACTIVE_dark = ACTIVE_mid = ACTIVE_light = ACTIVE_text = ACTIVE_base =
- PRELIGHT_fg = PRELIGHT_bg = PRELIGHT_dark = PRELIGHT_mid = PRELIGHT_light = PRELIGHT_text = PRELIGHT_base =
- SELECTED_fg = SELECTED_bg = SELECTED_dark = SELECTED_mid = SELECTED_light = SELECTED_text = SELECTED_base =
- INSENSITIVE_fg = INSENSITIVE_bg = INSENSITIVE_dark = INSENSITIVE_mid = INSENSITIVE_light = INSENSITIVE_text =
- INSENSITIVE_base = null;
-}
-
-RunnableLock removeFirst () {
- synchronized (messageLock) {
- if (messagesSize == 0) return null;
- RunnableLock lock = messages [0];
- System.arraycopy (messages, 1, messages, 0, --messagesSize);
- messages [messagesSize] = null;
- if (messagesSize == 0) messages = null;
- return lock;
- }
-}
-
-boolean runAsyncMessages () {
- return synchronizer.runAsyncMessages ();
-}
-
-boolean runDeferredEvents () {
- /*
- * Run deferred events. This code is always
- * called in the Display's thread so it must
- * be re-enterant need not be synchronized.
- */
- while (eventQueue != null) {
-
- /* Take an event off the queue */
- Event event = eventQueue [0];
- if (event == null) break;
- int length = eventQueue.length;
- System.arraycopy (eventQueue, 1, eventQueue, 0, --length);
- eventQueue [length] = null;
-
- /* Run the event */
- Widget widget = event.widget;
- if (widget != null && !widget.isDisposed ()) {
- Widget item = event.item;
- if (item == null || !item.isDisposed ()) {
- widget.notifyListeners (event.type, 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 true;
-}
-
-/**
- * On platforms which support it, sets the application name
- * to be the argument. On Motif, for example, this can be used
- * to set the name used for resource lookup.
- *
- * @param name the new app name
- */
-public static void setAppName (String name) {
- /* Do nothing - Gtk doesn't have the concept of application name. */
-}
-
-/**
- * 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>
- * </ul>
- *
- * @see #setData
- * @see #disposeExec
- */
-public void setData (String key, Object value) {
- checkDevice ();
- if (key == null) error (SWT.ERROR_NULL_ARGUMENT);
-
- /* Remove the key/value pair */
- if (value == null) {
- if (keys == null) return;
- int index = 0;
- while (index < keys.length && !keys [index].equals (key)) index++;
- if (index == keys.length) return;
- if (keys.length == 1) {
- keys = null;
- values = null;
- } else {
- String [] newKeys = new String [keys.length - 1];
- Object [] newValues = new Object [values.length - 1];
- System.arraycopy (keys, 0, newKeys, 0, index);
- System.arraycopy (keys, index + 1, newKeys, index, newKeys.length - index);
- System.arraycopy (values, 0, newValues, 0, index);
- System.arraycopy (values, index + 1, newValues, index, newValues.length - index);
- keys = newKeys;
- values = newValues;
- }
- return;
- }
-
- /* Add the key/value pair */
- if (keys == null) {
- keys = new String [] {key};
- values = new Object [] {value};
- return;
- }
- for (int i=0; i<keys.length; i++) {
- if (keys [i].equals (key)) {
- values [i] = value;
- return;
- }
- }
- String [] newKeys = new String [keys.length + 1];
- Object [] newValues = new Object [values.length + 1];
- System.arraycopy (keys, 0, newKeys, 0, keys.length);
- System.arraycopy (values, 0, newValues, 0, values.length);
- newKeys [keys.length] = key;
- newValues [values.length] = value;
- keys = newKeys;
- values = newValues;
-}
-
-/**
- * Sets the application defined, display specific data
- * associated with the receiver, to the argument.
- * The <em>display specific data</em> is a single,
- * unnamed field that is stored with every display.
- * <p>
- * Applications may put arbitrary objects in this field. If
- * the object stored in the display specific data needs to
- * be notified when the display is disposed of, it is the
- * application's responsibility provide a
- * <code>disposeExec()</code> handler which does so.
- * </p>
- *
- * @param data the new display specific data
- *
- * @exception SWTException <ul>
- * <li>ERROR_THREAD_INVALID_ACCESS - when called from the wrong thread</li>
- * </ul>
- *
- * @see #getData
- * @see #disposeExec
- */
-public void setData (Object data) {
- checkDevice ();
- this.data = data;
-}
-
-/**
- * Sets the synchronizer used by the display to be
- * the argument, which can not be null.
- *
- * @param synchronizer the new synchronizer for the display (must not be null)
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the synchronizer is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public void setSynchronizer (Synchronizer synchronizer) {
- checkDevice ();
- if (synchronizer == null) error (SWT.ERROR_NULL_ARGUMENT);
- if (this.synchronizer != null) {
- this.synchronizer.runAsyncMessages();
- }
- this.synchronizer = synchronizer;
-}
-
-/**
- * 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>
- * </ul>
- *
- * @see #wake
- */
-
-public boolean sleep () {
- checkDevice ();
- /* Temporary code - need to sleep waiting for the next message */
- try { Thread.sleep(50); } catch (Exception e) {};
- 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.
- *
- * @param milliseconds the delay before running the runnable
- * @param runnable code to run on the user-interface thread
- *
- * @exception SWTException <ul>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see #asyncExec
- */
-public void timerExec (int milliseconds, Runnable runnable) {
- checkDevice ();
- if (timerList == null) timerList = new Runnable [4];
- if (timerIDs == null) timerIDs = new int [4];
- int index = 0;
- while (index < timerList.length) {
- if (timerList [index] == null) break;
- index++;
- }
- if (index == timerList.length) {
- Runnable [] newTimerList = new Runnable [timerList.length + 4];
- System.arraycopy (timerList, 0, newTimerList, 0, timerList.length);
- timerList = newTimerList;
- int [] newTimerIDs = new int [timerIDs.length + 4];
- System.arraycopy (timerIDs, 0, newTimerIDs, 0, timerIDs.length);
- timerIDs = newTimerIDs;
- }
- int timerID = OS.gtk_timeout_add (milliseconds, timerProc, index);
- if (timerID != 0) {
- timerIDs [index] = timerID;
- timerList [index] = runnable;
- }
-}
-
-int timerProc (int index, int id) {
- if (timerList == null) return 0;
- if (0 <= index && index < timerList.length) {
- Runnable runnable = timerList [index];
- timerList [index] = null;
- timerIDs [index] = 0;
- if (runnable != null) runnable.run ();
- }
- return 0;
-}
-
-int caretProc (int clientData, int id) {
- caretID = 0;
- if (currentCaret == null) {
- return 0;
- }
- if (currentCaret.blinkCaret()) {
- int blinkRate = currentCaret.blinkRate;
- caretID = OS.gtk_timeout_add (blinkRate, caretProc, 0);
- } else {
- currentCaret = null;
- }
- return 0;
-}
-
-void setCurrentCaret (Caret caret) {
- if (caretID != 0) OS.gtk_timeout_remove(caretID);
- caretID = 0;
- currentCaret = caret;
- if (caret == null) return;
- int blinkRate = currentCaret.blinkRate;
- caretID = OS.gtk_timeout_add (blinkRate, caretProc, 0);
-}
-
-/**
- * Causes the <code>run()</code> method of the runnable to
- * be invoked by the user-interface thread at the next
- * reasonable opportunity. The thread which calls this method
- * is suspended until the runnable completes.
- *
- * @param runnable code to run on the user-interface thread.
- *
- * @exception SWTException <ul>
- * <li>ERROR_FAILED_EXEC - if an exception occured when executing the runnable</li>
- * </ul>
- *
- * @see #asyncExec
- */
-public void syncExec (Runnable runnable) {
- if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED);
- synchronizer.syncExec (runnable);
-}
-
-static int translateKey (int key) {
- for (int i=0; i<KeyTable.length; i++) {
- if (KeyTable [i] [0] == key) return KeyTable [i] [1];
- }
- return 0;
-}
-
-static int untranslateKey (int key) {
- for (int i=0; i<KeyTable.length; i++) {
- if (KeyTable [i] [1] == key) return KeyTable [i] [0];
- }
- return 0;
-}
-
-public void update () {
- checkDevice ();
- /* NOT IMPLEMENTED - Need to flush only pending draws */
- OS.gdk_flush ();
- while ((OS.gtk_events_pending ()) != 0) {
- OS.gtk_main_iteration ();
- }
-}
-
-/**
- * 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.
- *
- * @see #sleep
- */
-public void wake () {
- /* NOT IMPLEMENTED - Need to wake up the event loop */
- if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED);
-}
-
-int windowProc (int handle, int user_data) {
- Widget widget = WidgetTable.get (handle);
- if (widget == null) return 0;
- return widget.processEvent (user_data, 0, 0, 0);
-}
-
-int windowProc (int handle, int int0, int user_data) {
- Widget widget = WidgetTable.get (handle);
- if (widget == null) return 0;
- return widget.processEvent (user_data, int0, 0, 0);
-}
-
-int windowProc (int handle, int int0, int int1, int user_data) {
- Widget widget = WidgetTable.get (handle);
- if (widget == null) return 0;
- return widget.processEvent (user_data, int0, int1, 0);
-}
-
-int windowProc (int handle, int int0, int int1, int int2, int user_data) {
- Widget widget = WidgetTable.get (handle);
- if (widget == null) return 0;
- return widget.processEvent (user_data, int0, int1, int2);
-}
-
-}

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