/*******************************************************************************
* Copyright (c) 2000, 2013 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.swt.widgets;
import org.eclipse.swt.*;
import org.eclipse.swt.internal.*;
import org.eclipse.swt.internal.cairo.*;
import org.eclipse.swt.internal.gtk.*;
import org.eclipse.swt.graphics.*;
/**
* Instances of this class are responsible for managing the
* connection between SWT and the underlying operating
* system. Their most important function is to implement
* the SWT event loop in terms of the platform event model.
* They also provide various methods for accessing information
* about the operating system, and have overall control over
* the operating system resources which SWT allocates.
* <p>
* Applications which are built with SWT will <em>almost always</em>
* require only a single display. In particular, some platforms
* which SWT supports will not allow more than one <em>active</em>
* display. In other words, some platforms do not support
* creating a new display if one already exists that has not been
* sent the <code>dispose()</code> message.
* <p>
* In SWT, the thread which creates a <code>Display</code>
* instance is distinguished as the <em>user-interface thread</em>
* for that display.
* </p>
* The user-interface thread for a particular display has the
* following special attributes:
* <ul>
* <li>
* The event loop for that display must be run from the thread.
* </li>
* <li>
* Some SWT API methods (notably, most of the public methods in
* <code>Widget</code> and its subclasses), may only be called
* from the thread. (To support multi-threaded user-interface
* applications, class <code>Display</code> provides inter-thread
* communication methods which allow threads other than the
* user-interface thread to request that it perform operations
* on their behalf.)
* </li>
* <li>
* The thread is not allowed to construct other
* <code>Display</code>s until that display has been disposed.
* (Note that, this is in addition to the restriction mentioned
* above concerning platform support for multiple displays. Thus,
* the only way to have multiple simultaneously active displays,
* even on platforms which support it, is to have multiple threads.)
* </li>
* </ul>
* Enforcing these attributes allows SWT to be implemented directly
* on the underlying operating system's event model. This has
* numerous benefits including smaller footprint, better use of
* resources, safer memory management, clearer program logic,
* better performance, and fewer overall operating system threads
* required. The down side however, is that care must be taken
* (only) when constructing multi-threaded applications to use the
* inter-thread communication mechanisms which this class provides
* when required.
* </p><p>
* All SWT API methods which may only be called from the user-interface
* thread are distinguished in their documentation by indicating that
* they throw the "<code>ERROR_THREAD_INVALID_ACCESS</code>"
* SWT exception.
* </p>
* <dl>
* <dt><b>Styles:</b></dt>
* <dd>(none)</dd>
* <dt><b>Events:</b></dt>
* <dd>Close, Dispose, 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.
*/
@SuppressWarnings({"rawtypes"})
public class Display extends Device {
/* Events Dispatching and Callback */
int gdkEventCount;
long /*int*/ [] gdkEvents;
Widget [] gdkEventWidgets;
int [] dispatchEvents;
Event [] eventQueue;
long /*int*/ fds;
int allocated_nfds;
boolean wake;
int [] max_priority = new int [1], timeout = new int [1];
Callback eventCallback, filterCallback;
long /*int*/ eventProc, filterProc, windowProc2, windowProc3, windowProc4, windowProc5;
Callback windowCallback2, windowCallback3, windowCallback4, windowCallback5;
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"; //$NON-NLS-1$
long /*int*/ [] closures, closuresProc;
int [] closuresCount;
int [] signalIds;
long /*int*/ shellMapProcClosure;
/* Widget Table */
int [] indexTable;
int freeSlot;
long /*int*/ 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 (null, "SWT_OBJECT_INDEX", true); //$NON-NLS-1$
SWT_OBJECT_INDEX = OS.g_quark_from_string (buffer);
buffer = Converter.wcsToMbcs (null, "SWT_OBJECT_INDEX1", true); //$NON-NLS-1$
SWT_OBJECT_INDEX1 = OS.g_quark_from_string (buffer);
buffer = Converter.wcsToMbcs (null, "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 /*int*/ preeditWindow, preeditLabel;
/* Sync/Async Widget Communication */
Synchronizer synchronizer = new Synchronizer (this);
Thread thread;
/* Display Shutdown */
Runnable [] disposeList;
/* Deferred Layout list */
Composite[] layoutDeferred;
int layoutDeferredCount;
/* System Tray */
Tray tray;
TrayItem currentTrayItem;
/* Timers */
int [] timerIds;
Runnable [] timerList;
Callback timerCallback;
long /*int*/ timerProc;
Callback windowTimerCallback;
long /*int*/ windowTimerProc;
/* Caret */
Caret currentCaret;
Callback caretCallback;
int caretId;
long /*int*/ caretProc;
/* Mnemonics */
Control mnemonicControl;
/* Mouse hover */
int mouseHoverId;
long /*int*/ mouseHoverHandle, mouseHoverProc;
Callback mouseHoverCallback;
/* Menu position callback */
long /*int*/ menuPositionProc;
Callback menuPositionCallback;
/* Tooltip size allocate callback */
long /*int*/ sizeAllocateProc;
Callback sizeAllocateCallback;
long /*int*/ sizeRequestProc;
Callback sizeRequestCallback;
/* Shell map callback */
long /*int*/ shellMapProc;
Callback shellMapCallback;
/* Idle proc callback */
long /*int*/ 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 /*int*/ cellDataProc;
Callback cellDataCallback;
/* Set direction callback */
long /*int*/ setDirectionProc;
Callback setDirectionCallback;
static final String GET_DIRECTION_PROC_KEY = "org.eclipse.swt.internal.gtk.getDirectionProc"; //$NON-NLS-1$
/* Set emissionProc callback */
long /*int*/ emissionProc;
Callback emissionProcCallback;
static final String GET_EMISSION_PROC_KEY = "org.eclipse.swt.internal.gtk.getEmissionProc"; //$NON-NLS-1$
/* Get all children callback */
long /*int*/ allChildrenProc, allChildren;
Callback allChildrenCallback;
/* Settings callbacks */
long /*int*/ signalProc;
Callback signalCallback;
long /*int*/ shellHandle;
boolean settingsChanged, runSettings;
static final int STYLE_SET = 1;
static final int PROPERTY_NOTIFY = 2;
/* Entry focus behaviour */
boolean entrySelectOnFocus;
/* Enter/Exit events */
Control currentControl;
/* Flush exposes */
long /*int*/ checkIfEventProc;
Callback checkIfEventCallback;
long /*int*/ flushWindow;
boolean flushAll;
GdkRectangle flushRect = new GdkRectangle ();
XExposeEvent exposeEvent = new XExposeEvent ();
XVisibilityEvent visibilityEvent = new XVisibilityEvent ();
long /*int*/ [] flushData = new long /*int*/ [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 */
GdkColor COLOR_WIDGET_DARK_SHADOW, COLOR_WIDGET_NORMAL_SHADOW, COLOR_WIDGET_LIGHT_SHADOW;
GdkColor COLOR_WIDGET_HIGHLIGHT_SHADOW, COLOR_WIDGET_BACKGROUND, COLOR_WIDGET_FOREGROUND, COLOR_WIDGET_BORDER;
GdkColor COLOR_LIST_FOREGROUND, COLOR_LIST_BACKGROUND, COLOR_LIST_SELECTION, COLOR_LIST_SELECTION_TEXT;
GdkColor COLOR_LIST_SELECTION_INACTIVE, COLOR_LIST_SELECTION_TEXT_INACTIVE;
GdkColor COLOR_INFO_BACKGROUND, COLOR_INFO_FOREGROUND, COLOR_LINK_FOREGROUND;
GdkColor COLOR_TITLE_FOREGROUND, COLOR_TITLE_BACKGROUND, COLOR_TITLE_BACKGROUND_GRADIENT;
GdkColor COLOR_TITLE_INACTIVE_FOREGROUND, COLOR_TITLE_INACTIVE_BACKGROUND, COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT;
/* Popup Menus */
Menu [] popups;
/* 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 /*int*/ pangoLayoutNewProc;
/* IM Context constructor */
long /*int*/ imContextNewProc;
/* Custom Resize */
double resizeLocationX, resizeLocationY;
int resizeBoundsX, resizeBoundsY, resizeBoundsWidth, resizeBoundsHeight;
int resizeMode;
/* Fixed Subclass */
static long /*int*/ fixed_type;
static long /*int*/ fixed_info_ptr;
static Callback fixedClassInitCallback, fixedMapCallback, fixedSizeAllocateCallback;
static long /*int*/ fixedClassInitProc, fixedMapProc, fixedSizeAllocateProc, oldFixedSizeAllocateProc;
/* Renderer Subclass */
static long /*int*/ text_renderer_type, pixbuf_renderer_type, toggle_renderer_type;
static long /*int*/ text_renderer_info_ptr, pixbuf_renderer_info_ptr, toggle_renderer_info_ptr;
static Callback rendererClassInitCallback, rendererRenderCallback, rendererGetSizeCallback;
static Callback rendererGetPreferredWidthCallback;
static long /*int*/ rendererClassInitProc, rendererRenderProc, rendererGetSizeProc;
static long /*int*/ rendererGetPreferredWidthProc;
/* Key Mappings */
static final int [] [] KeyTable = {
/* Keyboard and Mouse Masks */
{OS.GDK_Alt_L, SWT.ALT},
{OS.GDK_Alt_R, SWT.ALT},
{OS.GDK_Meta_L, SWT.ALT},
{OS.GDK_Meta_R, SWT.ALT},
{OS.GDK_Shift_L, SWT.SHIFT},
{OS.GDK_Shift_R, SWT.SHIFT},
{OS.GDK_Control_L, SWT.CONTROL},
{OS.GDK_Control_R, SWT.CONTROL},
// {OS.GDK_????, SWT.COMMAND},
// {OS.GDK_????, SWT.COMMAND},
/* Non-Numeric Keypad Keys */
{OS.GDK_Up, SWT.ARROW_UP},
{OS.GDK_KP_Up, SWT.ARROW_UP},
{OS.GDK_Down, SWT.ARROW_DOWN},
{OS.GDK_KP_Down, SWT.ARROW_DOWN},
{OS.GDK_Left, SWT.ARROW_LEFT},
{OS.GDK_KP_Left, SWT.ARROW_LEFT},
{OS.GDK_Right, SWT.ARROW_RIGHT},
{OS.GDK_KP_Right, SWT.ARROW_RIGHT},
{OS.GDK_Page_Up, SWT.PAGE_UP},
{OS.GDK_KP_Page_Up, SWT.PAGE_UP},
{OS.GDK_Page_Down, SWT.PAGE_DOWN},
{OS.GDK_KP_Page_Down, SWT.PAGE_DOWN},
{OS.GDK_Home, SWT.HOME},
{OS.GDK_KP_Home, SWT.HOME},
{OS.GDK_End, SWT.END},
{OS.GDK_KP_End, SWT.END},
{OS.GDK_Insert, SWT.INSERT},
{OS.GDK_KP_Insert, SWT.INSERT},
/* Virtual and Ascii Keys */
{OS.GDK_BackSpace, SWT.BS},
{OS.GDK_Return, SWT.CR},
{OS.GDK_Delete, SWT.DEL},
{OS.GDK_KP_Delete, SWT.DEL},
{OS.GDK_Escape, SWT.ESC},
{OS.GDK_Linefeed, SWT.LF},
{OS.GDK_Tab, SWT.TAB},
{OS.GDK_ISO_Left_Tab, SWT.TAB},
/* Functions Keys */
{OS.GDK_F1, SWT.F1},
{OS.GDK_F2, SWT.F2},
{OS.GDK_F3, SWT.F3},
{OS.GDK_F4, SWT.F4},
{OS.GDK_F5, SWT.F5},
{OS.GDK_F6, SWT.F6},
{OS.GDK_F7, SWT.F7},
{OS.GDK_F8, SWT.F8},
{OS.GDK_F9, SWT.F9},
{OS.GDK_F10, SWT.F10},
{OS.GDK_F11, SWT.F11},
{OS.GDK_F12, SWT.F12},
{OS.GDK_F13, SWT.F13},
{OS.GDK_F14, SWT.F14},
{OS.GDK_F15, SWT.F15},
{OS.GDK_F16, SWT.F16},
{OS.GDK_F17, SWT.F17},
{OS.GDK_F18, SWT.F18},
{OS.GDK_F19, SWT.F19},
{OS.GDK_F20, SWT.F20},
/* Numeric Keypad Keys */
{OS.GDK_KP_Multiply, SWT.KEYPAD_MULTIPLY},
{OS.GDK_KP_Add, SWT.KEYPAD_ADD},
{OS.GDK_KP_Enter, SWT.KEYPAD_CR},
{OS.GDK_KP_Subtract, SWT.KEYPAD_SUBTRACT},
{OS.GDK_KP_Decimal, SWT.KEYPAD_DECIMAL},
{OS.GDK_KP_Divide, SWT.KEYPAD_DIVIDE},
{OS.GDK_KP_0, SWT.KEYPAD_0},
{OS.GDK_KP_1, SWT.KEYPAD_1},
{OS.GDK_KP_2, SWT.KEYPAD_2},
{OS.GDK_KP_3, SWT.KEYPAD_3},
{OS.GDK_KP_4, SWT.KEYPAD_4},
{OS.GDK_KP_5, SWT.KEYPAD_5},
{OS.GDK_KP_6, SWT.KEYPAD_6},
{OS.GDK_KP_7, SWT.KEYPAD_7},
{OS.GDK_KP_8, SWT.KEYPAD_8},
{OS.GDK_KP_9, SWT.KEYPAD_9},
{OS.GDK_KP_Equal, SWT.KEYPAD_EQUAL},
/* Other keys */
{OS.GDK_Caps_Lock, SWT.CAPS_LOCK},
{OS.GDK_Num_Lock, SWT.NUM_LOCK},
{OS.GDK_Scroll_Lock, SWT.SCROLL_LOCK},
{OS.GDK_Pause, SWT.PAUSE},
{OS.GDK_Break, SWT.BREAK},
{OS.GDK_Print, SWT.PRINT_SCREEN},
{OS.GDK_Help, SWT.HELP},
};
/* Multiple Displays. */
static Display Default;
static Display [] Displays = new Display [4];
/* 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);
// }
/* GTK Version */
static final int GTK3_MAJOR = 3;
static final int GTK3_MINOR = 0;
static final int GTK3_MICRO = 0;
static final int GTK2_MAJOR = 2;
static final int GTK2_MINOR = 10;
static final int GTK2_MICRO = 0;
/* Display Data */
Object data;
String [] keys;
Object [] values;
/* Initial Guesses for Shell Trimmings. */
int borderTrimWidth = 4, borderTrimHeight = 4;
int resizeTrimWidth = 6, resizeTrimHeight = 6;
int titleBorderTrimWidth = 5, titleBorderTrimHeight = 28;
int titleResizeTrimWidth = 6, titleResizeTrimHeight = 29;
int titleTrimWidth = 0, titleTrimHeight = 23;
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 = new Runnable () {
public void run () {
Device device = getCurrent ();
if (device == null) {
device = getDefault ();
}
setDevice (device);
}
};
}
/*
* TEMPORARY CODE.
*/
static void setDevice (Device device) {
CurrentDevice = device;
}
/**
* Constructs a new instance of this class.
* <p>
* Note: The resulting display is marked as the <em>current</em>
* display. If this is the first display which has been
* constructed since the application started, it is also
* marked as the <em>default</em> display.
* </p>
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if called from a thread that already created an existing display</li>
* <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
* </ul>
*
* @see #getCurrent
* @see #getDefault
* @see Widget#checkSubclass
* @see Shell
*/
public Display () {
this (null);
}
/**
* Constructs a new instance of this class using the parameter.
*
* @param data the device data
*/
public Display (DeviceData data) {
super (data);
}
/**
* 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 /*int*/ event) {
if (gdkEvents == null) {
int length = GROW_SIZE;
gdkEvents = new long /*int*/ [length];
gdkEventWidgets = new Widget [length];
gdkEventCount = 0;
}
if (gdkEventCount == gdkEvents.length) {
int length = gdkEventCount + GROW_SIZE;
long /*int*/ [] newEvents = new long /*int*/ [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 /*int*/ handle = OS.gtk_get_event_widget (event);
if (handle != 0) {
do {
widget = getWidget (handle);
} while (widget == null && (handle = OS.gtk_widget_get_parent (handle)) != 0);
}
gdkEvents [gdkEventCount] = event;
gdkEventWidgets [gdkEventCount] = widget;
gdkEventCount++;
}
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 ();
eventTable.hook (eventType, listener);
}
long /*int*/ allChildrenProc (long /*int*/ widget, long /*int*/ recurse) {
allChildren = OS.g_list_append (allChildren, widget);
if (recurse != 0 && OS.GTK_IS_CONTAINER (widget)) {
OS.gtk_container_forall (widget, allChildrenProc, recurse);
}
return 0;
}
void addMouseHoverTimeout (long /*int*/ 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;
}
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 /*int*/ handle, Widget widget) {
if (handle == 0) return;
if (freeSlot == -1) {
int length = (freeSlot = indexTable.length) + GROW_SIZE;
int[] newIndexTable = new int[length];
Widget[] newWidgetTable = new Widget [length];
System.arraycopy (indexTable, 0, newIndexTable, 0, freeSlot);
System.arraycopy (widgetTable, 0, newWidgetTable, 0, freeSlot);
for (int i = freeSlot; i < length - 1; i++) {
newIndexTable[i] = i + 1;
}
newIndexTable[length - 1] = -1;
indexTable = newIndexTable;
widgetTable = newWidgetTable;
}
int index = freeSlot + 1;
OS.g_object_set_qdata (handle, SWT_OBJECT_INDEX, index);
int oldSlot = freeSlot;
freeSlot = indexTable[oldSlot];
indexTable [oldSlot] = -2;
widgetTable [oldSlot] = widget;
}
/**
* Causes the <code>run()</code> method of the runnable to
* be invoked by the user-interface thread at the next
* reasonable opportunity. The caller of this method continues
* to run in parallel, and is not notified when the
* runnable has completed. 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);
OS.gdk_beep();
if (!OS.GDK_WINDOWING_X11 ()) {
OS.gdk_flush ();
} else {
long /*int*/ xDisplay = OS.gdk_x11_display_get_xdisplay(OS.gdk_display_get_default());
OS.XFlush (xDisplay);
}
}
long /*int*/ cellDataProc (long /*int*/ tree_column, long /*int*/ cell, long /*int*/ tree_model, long /*int*/ iter, long /*int*/ 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 /*int*/ checkIfEventProc (long /*int*/ display, long /*int*/ xEvent, long /*int*/ userData) {
int type = OS.X_EVENT_TYPE (xEvent);
switch (type) {
case OS.VisibilityNotify:
/*
* As of GTK 2.17.11, obscured controls no longer send expose
* events. It is no longer necessary to track visiblity notify
* events.
*/
if (OS.GTK_VERSION >= OS.VERSION (2, 17, 11)) return 0;
case OS.Expose:
case OS.GraphicsExpose:
break;
default:
return 0;
}
long /*int*/ window = 0;
if (OS.GTK_VERSION >= OS.VERSION (2, 24, 0)) {
window = OS.gdk_x11_window_lookup_for_display(OS.gdk_display_get_default(), OS.X_EVENT_WINDOW (xEvent));
} else {
window = OS.gdk_window_lookup (OS.X_EVENT_WINDOW (xEvent));
}
if (window == 0) return 0;
if (flushWindow != 0) {
if (flushAll) {
long /*int*/ tempWindow = window;
do {
if (tempWindow == flushWindow) break;
} while ((tempWindow = OS.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 = exposeEvent.width;
flushRect.height = exposeEvent.height;
OS.gdk_window_invalidate_rect (window, flushRect, true);
exposeEvent.type = -1;
OS.memmove (xEvent, exposeEvent, XExposeEvent.sizeof);
break;
}
case OS.VisibilityNotify: {
OS.memmove (visibilityEvent, xEvent, XVisibilityEvent.sizeof);
OS.gdk_window_get_user_data (window, flushData);
long /*int*/ handle = flushData [0];
Widget widget = handle != 0 ? getWidget (handle) : null;
if (widget != null && widget instanceof Control) {
Control control = (Control) widget;
if (window == control.paintWindow ()) {
if (visibilityEvent.state == OS.VisibilityFullyObscured) {
control.state |= Widget.OBSCURED;
} else {
control.state &= ~Widget.OBSCURED;
}
}
}
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;
}
void createDisplay (DeviceData data) {
if (OS.GLIB_VERSION < OS.VERSION(2, 32, 0)) {
/* Required for g_main_context_wakeup */
if (!OS.g_thread_supported()) {
OS.g_thread_init(0);
}
}
if (OS.GTK_VERSION < OS.VERSION(2, 24, 0)) {
OS.gtk_set_locale();
}
if (!OS.gtk_init_check (new long /*int*/ [] {0}, null)) {
SWT.error (SWT.ERROR_NO_HANDLES, null, " [gtk_init_check() failed]"); //$NON-NLS-1$
}
if (OS.GDK_WINDOWING_X11 ()) xDisplay = OS.gdk_x11_get_default_xdisplay();
int major = OS.gtk_major_version ();
long /*int*/ ptr;
if (major == GTK3_MAJOR) {
ptr = OS.gtk_check_version (GTK3_MAJOR, GTK3_MINOR, GTK3_MICRO);
} else {
ptr = OS.gtk_check_version (GTK2_MAJOR, GTK2_MINOR, GTK2_MICRO);
}
if (ptr != 0) {
int length = OS.strlen (ptr);
byte [] buffer = new byte [length];
OS.memmove (buffer, ptr, length);
System.out.println ("***WARNING: " + new String (Converter.mbcsToWcs (null, buffer))); //$NON-NLS-1$
System.out.println ("***WARNING: SWT requires GTK " + GTK2_MAJOR+ "." + GTK2_MINOR + "." + GTK2_MICRO); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
int minor = OS.gtk_minor_version (), micro = OS.gtk_micro_version ();
System.out.println ("***WARNING: Detected: " + major + "." + minor + "." + micro); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}
if (OS.GTK3) {
fixed_type = OS.swt_fixed_get_type();
}
if (fixed_type == 0) {
byte [] type_name = Converter.wcsToMbcs (null, "SwtFixed", true); //$NON-NLS-1$
fixedClassInitCallback = new Callback (getClass (), "fixedClassInitProc", 2); //$NON-NLS-1$
fixedClassInitProc = fixedClassInitCallback.getAddress ();
if (fixedClassInitProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
fixedMapCallback = new Callback (getClass (), "fixedMapProc", 1); //$NON-NLS-1$
fixedMapProc = fixedMapCallback.getAddress ();
if (fixedMapProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
fixedSizeAllocateCallback = new Callback (getClass (), "fixedSizeAllocateProc", 2); //$NON-NLS-1$
fixedSizeAllocateProc = fixedSizeAllocateCallback.getAddress ();
if (fixedSizeAllocateProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
long /*int*/ queryPtr = OS.g_malloc (GTypeQuery.sizeof);
OS.g_type_query (OS.GTK_TYPE_FIXED(), queryPtr);
GTypeQuery query = new GTypeQuery ();
OS.memmove (query, queryPtr, GTypeQuery.sizeof);
OS.g_free (queryPtr);
GTypeInfo fixed_info = new GTypeInfo ();
fixed_info.class_size = (short) query.class_size;
fixed_info.class_init = fixedClassInitProc;
fixed_info.instance_size = (short) query.instance_size;
fixed_info_ptr = OS.g_malloc (GTypeInfo.sizeof);
OS.memmove (fixed_info_ptr, fixed_info, GTypeInfo.sizeof);
fixed_type = OS.g_type_register_static (OS.GTK_TYPE_FIXED (), type_name, fixed_info_ptr, 0);
}
if (rendererClassInitProc == 0) {
rendererClassInitCallback = new Callback (getClass (), "rendererClassInitProc", 2); //$NON-NLS-1$
rendererClassInitProc = rendererClassInitCallback.getAddress ();
if (rendererClassInitProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
}
if (rendererRenderProc == 0) {
rendererRenderCallback = new Callback (getClass (), "rendererRenderProc", OS.GTK3 ? 6 : 7); //$NON-NLS-1$
rendererRenderProc = rendererRenderCallback.getAddress ();
if (rendererRenderProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
}
if (OS.GTK3) {
if (rendererGetPreferredWidthProc == 0) {
rendererGetPreferredWidthCallback = new Callback (getClass (), "rendererGetPreferredWidthProc", 4); //$NON-NLS-1$
rendererGetPreferredWidthProc = rendererGetPreferredWidthCallback.getAddress ();
if (rendererGetPreferredWidthProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
}
} else {
if (rendererGetSizeProc == 0) {
rendererGetSizeCallback = new Callback (getClass (), "rendererGetSizeProc", 7); //$NON-NLS-1$
rendererGetSizeProc = rendererGetSizeCallback.getAddress ();
if (rendererGetSizeProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
}
}
if (text_renderer_type == 0) {
GTypeInfo renderer_info = new GTypeInfo ();
renderer_info.class_size = (short) OS.GtkCellRendererTextClass_sizeof ();
renderer_info.class_init = rendererClassInitProc;
renderer_info.instance_size = (short) OS.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 (null, "SwtTextRenderer", true); //$NON-NLS-1$
text_renderer_type = OS.g_type_register_static (OS.GTK_TYPE_CELL_RENDERER_TEXT (), type_name, text_renderer_info_ptr, 0);
}
if (pixbuf_renderer_type == 0) {
GTypeInfo renderer_info = new GTypeInfo ();
renderer_info.class_size = (short) OS.GtkCellRendererPixbufClass_sizeof ();
renderer_info.class_init = rendererClassInitProc;
renderer_info.instance_size = (short) OS.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 (null, "SwtPixbufRenderer", true); //$NON-NLS-1$
pixbuf_renderer_type = OS.g_type_register_static (OS.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) OS.GtkCellRendererToggleClass_sizeof ();
renderer_info.class_init = rendererClassInitProc;
renderer_info.instance_size = (short) OS.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 (null, "SwtToggleRenderer", true); //$NON-NLS-1$
toggle_renderer_type = OS.g_type_register_static (OS.GTK_TYPE_CELL_RENDERER_TOGGLE (), type_name, toggle_renderer_info_ptr, 0);
}
OS.gtk_widget_set_default_direction (OS.GTK_TEXT_DIR_LTR);
byte [] buffer = Converter.wcsToMbcs (null, APP_NAME, true);
OS.g_set_prgname (buffer);
OS.gdk_set_program_class (buffer);
if (!OS.GTK3) {
byte [] flatStyle = Converter.wcsToMbcs (null, "style \"swt-flat\" { GtkToolbar::shadow-type = none } widget \"*.swt-toolbar-flat\" style : highest \"swt-flat\"", true); //$NON-NLS-1$
OS.gtk_rc_parse_string (flatStyle);
}
/* Initialize the hidden shell */
shellHandle = OS.gtk_window_new (OS.GTK_WINDOW_TOPLEVEL);
if (shellHandle == 0) error (SWT.ERROR_NO_HANDLES);
OS.gtk_widget_realize (shellHandle);
/* Initialize the filter and event callback */
eventCallback = new Callback (this, "eventProc", 2); //$NON-NLS-1$
eventProc = eventCallback.getAddress ();
if (eventProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
OS.gdk_event_handler_set (eventProc, 0, 0);
filterCallback = new Callback (this, "filterProc", 3); //$NON-NLS-1$
filterProc = filterCallback.getAddress ();
if (filterProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
OS.gdk_window_add_filter (0, filterProc, 0);
if (OS.GDK_WINDOWING_X11 ()) {
long /*int*/ xWindow;
if (OS.GTK3) {
xWindow = OS.gdk_x11_window_get_xid (OS.gtk_widget_get_window (shellHandle));
} else if (OS.GTK_VERSION >= OS.VERSION(2, 14, 0)){
xWindow = OS.gdk_x11_drawable_get_xid (OS.gtk_widget_get_window (shellHandle));
} else {
xWindow = OS.gdk_x11_drawable_get_xid (OS.GTK_WIDGET_WINDOW (shellHandle));
}
byte[] atomName = Converter.wcsToMbcs (null, "SWT_Window_" + APP_NAME, true); //$NON-NLS-1$
long /*int*/ atom = OS.XInternAtom (xDisplay, atomName, false);
OS.XSetSelectionOwner (xDisplay, atom, xWindow, OS.CurrentTime);
OS.XGetSelectionOwner (xDisplay, atom);
}
signalCallback = new Callback (this, "signalProc", 3); //$NON-NLS-1$
signalProc = signalCallback.getAddress ();
if (signalProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
OS.gtk_widget_add_events (shellHandle, OS.GDK_PROPERTY_CHANGE_MASK);
OS.g_signal_connect (shellHandle, OS.property_notify_event, signalProc, PROPERTY_NOTIFY);
}
Image createImage (String name) {
byte[] buffer = Converter.wcsToMbcs (null, name, true);
long /*int*/ pixbuf, icon_set = OS.gtk_icon_factory_lookup_default (buffer);
if (OS.GTK3) {
pixbuf = OS.gtk_icon_set_render_icon_pixbuf(icon_set, OS.gtk_widget_get_style_context(shellHandle), OS.GTK_ICON_SIZE_DIALOG);
} else {
long /*int*/ style = OS.gtk_widget_get_default_style ();
pixbuf = OS.gtk_icon_set_render_icon (icon_set, style,
OS.GTK_TEXT_DIR_NONE, OS.GTK_STATE_NORMAL, OS.GTK_ICON_SIZE_DIALOG, 0, 0);
}
if (pixbuf == 0) return null;
int width = OS.gdk_pixbuf_get_width (pixbuf);
int height = OS.gdk_pixbuf_get_height (pixbuf);
int stride = OS.gdk_pixbuf_get_rowstride (pixbuf);
boolean hasAlpha = OS.gdk_pixbuf_get_has_alpha (pixbuf);
long /*int*/ pixels = OS.gdk_pixbuf_get_pixels (pixbuf);
byte [] data = new byte [stride * height];
OS.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 /*int*/ emissionProc (long /*int*/ ihint, long /*int*/ n_param_values, long /*int*/ param_values, long /*int*/ data) {
if (OS.gtk_widget_get_toplevel (OS.g_value_peek_pointer(param_values)) == data) {
OS.gtk_widget_set_direction (OS.g_value_peek_pointer(param_values), OS.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 /*int*/ eventProc (long /*int*/ event, long /*int*/ 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 = OS.gdk_event_get_time (event);
if (time != 0) lastEventTime = time;
int eventType = OS.GDK_EVENT_TYPE (event);
switch (eventType) {
case OS.GDK_BUTTON_PRESS:
case OS.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) {
addGdkEvent (OS.gdk_event_copy (event));
return 0;
}
dispatch = true;
if (tracker != null) {
dispatch = tracker.processEvent (event);
}
if (dispatch) OS.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 /*int*/ handle) {
checkDevice ();
return getWidget (handle);
}
/**
* Given the operating system handle for a widget,
* and widget-specific id, returns the instance of
* the <code>Widget</code> subclass which represents
* the handle/id pair in the currently running application,
* if such exists, or null if no matching widget can be found.
* <p>
* <b>IMPORTANT:</b> This method should not be called from
* application code. The arguments are platform-specific.
* </p>
*
* @param handle the handle for the widget
* @param id the id for the subwidget (usually an item)
* @return the SWT widget that the handle/id pair represents
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @noreference This method is not intended to be referenced by clients.
*
* @since 3.1
*/
public Widget findWidget (long /*int*/ handle, long /*int*/ id) {
checkDevice ();
return null;
}
/**
* Given a widget and a widget-specific id, returns the
* instance of the <code>Widget</code> subclass which represents
* the widget/id pair in the currently running application,
* if such exists, or null if no matching widget can be found.
*
* @param widget the widget
* @param id the id for the subwidget (usually an item)
* @return the SWT subwidget (usually an item) that the widget/id pair represents
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @noreference This method is not intended to be referenced by clients.
*
* @since 3.3
*/
public Widget findWidget (Widget widget, long /*int*/ id) {
checkDevice ();
return null;
}
static long /*int*/ fixedClassInitProc (long /*int*/ g_class, long /*int*/ class_data) {
GtkWidgetClass klass = new GtkWidgetClass ();
OS.memmove (klass, g_class);
klass.map = fixedMapProc;
oldFixedSizeAllocateProc = klass.size_allocate;
klass.size_allocate = fixedSizeAllocateProc;
OS.memmove (g_class, klass);
return 0;
}
static long /*int*/ fixedMapProc (long /*int*/ handle) {
Display display = getCurrent ();
Widget widget = display.getWidget (handle);
if (widget != null) return widget.fixedMapProc (handle);
return 0;
}
static long /*int*/ fixedSizeAllocateProc (long /*int*/ handle, long /*int*/ allocation) {
Display display = getCurrent ();
Widget widget = display.getWidget (handle);
if (widget != null) return widget.fixedSizeAllocateProc (handle, allocation);
return OS.Call (oldFixedSizeAllocateProc, handle, allocation);
}
static long /*int*/ rendererClassInitProc (long /*int*/ g_class, long /*int*/ class_data) {
GtkCellRendererClass klass = new GtkCellRendererClass ();
OS.memmove (klass, g_class);
klass.render = rendererRenderProc;
if (OS.GTK3) {
klass.get_preferred_width = rendererGetPreferredWidthProc;
} else {
klass.get_size = rendererGetSizeProc;
}
OS.memmove (g_class, klass);
return 0;
}
static long /*int*/ rendererGetPreferredWidthProc (long /*int*/ cell, long /*int*/ handle, long /*int*/ minimun_size, long /*int*/ 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 /*int*/ rendererGetSizeProc (long /*int*/ cell, long /*int*/ handle, long /*int*/ cell_area, long /*int*/ x_offset, long /*int*/ y_offset, long /*int*/ width, long /*int*/ height) {
Display display = getCurrent ();
Widget widget = display.getWidget (handle);
if (widget != null) return widget.rendererGetSizeProc (cell, handle, cell_area, x_offset, y_offset, width, height);
return 0;
}
static long /*int*/ rendererRenderProc (long /*int*/ cell, long /*int*/ cr, long /*int*/ handle, long /*int*/ background_area, long /*int*/ cell_area, long /*int*/ 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 /*int*/ rendererRenderProc (long /*int*/ cell, long /*int*/ window, long /*int*/ handle, long /*int*/ background_area, long /*int*/ cell_area, long /*int*/ expose_area, long /*int*/ flags) {
Display display = getCurrent ();
Widget widget = display.getWidget (handle);
if (widget != null) return widget.rendererRenderProc (cell, window, handle, background_area, cell_area, expose_area, flags);
return 0;
}
void flushExposes (long /*int*/ window, boolean all) {
OS.gdk_flush ();
OS.gdk_flush ();
if (OS.GDK_WINDOWING_X11 ()) {
this.flushWindow = window;
this.flushAll = all;
long /*int*/ xDisplay = OS.gdk_x11_display_get_xdisplay(OS.gdk_display_get_default());
long /*int*/ 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 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 Display getCurrent () {
return findDisplay (Thread.currentThread ());
}
int getCaretBlinkTime () {
// checkDevice ();
long /*int*/ settings = OS.gtk_settings_get_default ();
if (settings == 0) return 500;
int [] buffer = new int [1];
OS.g_object_get (settings, OS.gtk_cursor_blink, buffer, 0);
if (buffer [0] == 0) return 0;
OS.g_object_get (settings, OS.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 /*int*/ getClosure (int id) {
if (OS.GLIB_VERSION >= OS.VERSION(2, 36, 0) && ++closuresCount [id] >= 255) {
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 /*int*/ handle = 0;
long /*int*/ [] user_data = new long /*int*/ [1];
long /*int*/ window = gdk_device_get_window_at_position (x,y);
if (window != 0) {
OS.gdk_window_get_user_data (window, 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.GDK_WINDOWING_X11 ()) return null;
OS.gdk_error_trap_push ();
int[] unusedInt = new int[1];
long /*int*/[] unusedPtr = new long /*int*/[1], buffer = new long /*int*/[1];
long /*int*/ 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 /*int*/ gdkWindow = 0;
if (OS.GTK_VERSION >= OS.VERSION (2, 24, 0)) {
gdkWindow = OS.gdk_x11_window_lookup_for_display(OS.gdk_display_get_default(), xWindow);
} else {
gdkWindow = OS.gdk_window_lookup (xWindow);
}
if (gdkWindow != 0) {
OS.gdk_window_get_user_data (gdkWindow, user_data);
if (user_data[0] != 0) handle = user_data[0];
}
}
} while (xWindow != 0);
OS.gdk_error_trap_pop ();
}
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 = OS.gtk_widget_get_parent (handle)) != 0);
return null;
}
static GtkBorder getEntryInnerBorder (long /*int*/ handle) {
GtkBorder gtkBorder = new GtkBorder();
long /*int*/ border = OS.gtk_entry_get_inner_border (handle);
if (border != 0) {
OS.memmove (gtkBorder, border, GtkBorder.sizeof);
return gtkBorder;
}
long /*int*/ [] borderPtr = new long /*int*/ [1];
OS.gtk_widget_style_get (handle, OS.inner_border, borderPtr,0);
if (borderPtr[0] != 0) {
OS.memmove (gtkBorder, borderPtr[0], GtkBorder.sizeof);
OS.gtk_border_free(borderPtr[0]);
return gtkBorder;
}
gtkBorder.left = INNER_BORDER;
gtkBorder.top = INNER_BORDER;
gtkBorder.right = INNER_BORDER;
gtkBorder.bottom = INNER_BORDER;
return gtkBorder;
}
boolean filterEvent (Event event) {
if (filterTable != null) filterTable.sendEvent (event);
return false;
}
boolean filters (int eventType) {
if (filterTable == null) return false;
return filterTable.hooks (eventType);
}
long /*int*/ filterProc (long /*int*/ xEvent, long /*int*/ gdkEvent, long /*int*/ data) {
Widget widget = getWidget (data);
if (widget == null) return 0;
return widget.filterProc (xEvent, gdkEvent, data);
}
/**
* Returns the location of the on-screen pointer relative
* to the top left corner of the screen.
*
* @return the cursor location
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*/
public Point getCursorLocation () {
checkDevice ();
int [] x = new int [1], y = new int [1];
gdk_window_get_device_position (0, x, y, null);
return new Point (x [0], y [0]);
}
/**
* Returns an array containing the recommended cursor sizes.
*
* @return the array of cursor sizes
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @since 3.0
*/
public Point [] getCursorSizes () {
checkDevice ();
return new Point [] {new Point (16, 16), new Point (32, 32)};
}
/**
* Returns the application defined property of the receiver
* with the specified name, or null if it has not been set.
* <p>
* Applications may have associated arbitrary objects with the
* receiver in this fashion. If the objects stored in the
* properties need to be notified when the display is disposed
* of, it is the application's responsibility 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 /*int*/ gtk_fixed_get_type () {
return fixed_type;
}
long /*int*/ gtk_cell_renderer_text_get_type () {
return text_renderer_type;
}
long /*int*/ gtk_cell_renderer_pixbuf_get_type () {
return pixbuf_renderer_type;
}
long /*int*/ gtk_cell_renderer_toggle_get_type () {
return toggle_renderer_type;
}
/**
* 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 /*int*/ settings = OS.gtk_settings_get_default ();
OS.g_object_get (settings, OS.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 /*int*/ settings = OS.gtk_settings_get_default ();
int [] buffer = new int [1];
OS.g_object_get (settings, OS.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 /*int*/ shellHandle = activeShell.shellHandle;
long /*int*/ handle = OS.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 = OS.gtk_widget_get_parent (handle)) != 0);
return null;
}
/**
* Returns true when the high contrast mode is enabled.
* Otherwise, false is returned.
* <p>
* Note: This operation is a hint and is not supported on
* platforms that do not have this concept.
* </p>
*
* @return the high contrast mode
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @since 3.0
*/
public boolean getHighContrast () {
checkDevice ();
return false;
}
@Override
public int getDepth () {
checkDevice ();
if (OS.GTK_VERSION >= OS.VERSION(2, 22, 0)) {
return OS.gdk_visual_get_depth(OS.gdk_visual_get_system());
} else {
GdkVisual visual = new GdkVisual ();
OS.memmove (visual, OS.gdk_visual_get_system());
return visual.depth;
}
}
/**
* Returns the maximum allowed depth of icons on this display, 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)};
}
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() {
byte[] name = Converter.wcsToMbcs (null, "_NET_WORKAREA", true); //$NON-NLS-1$
long /*int*/ atom = OS.gdk_atom_intern (name, true);
if (atom == OS.GDK_NONE) return null;
long /*int*/[] actualType = new long /*int*/[1];
int[] actualFormat = new int[1];
int[] actualLength = new int[1];
long /*int*/[] data = new long /*int*/[1];
if (!OS.gdk_property_get (OS.gdk_get_default_root_window(), atom, OS.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];
OS.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];
OS.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 = getWorkArea();
long /*int*/ screen = OS.gdk_screen_get_default ();
if (screen != 0) {
int monitorCount = OS.gdk_screen_get_n_monitors (screen);
if (monitorCount > 0) {
monitors = new Monitor [monitorCount];
GdkRectangle dest = new GdkRectangle ();
for (int i = 0; i < monitorCount; i++) {
OS.gdk_screen_get_monitor_geometry (screen, i, dest);
Monitor monitor = new Monitor ();
monitor.handle = i;
monitor.x = dest.x;
monitor.y = dest.y;
monitor.width = dest.width;
monitor.height = dest.height;
if (i == 0 && 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 [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 () {
checkDevice ();
Monitor [] monitors = getMonitors ();
return monitors [0];
}
/**
* 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 != null && widget instanceof Shell) {
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;
}
}
}
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 ();
GdkColor gdkColor = null;
switch (id) {
case SWT.COLOR_LINK_FOREGROUND: gdkColor = COLOR_LINK_FOREGROUND; break;
case SWT.COLOR_INFO_FOREGROUND: gdkColor = COLOR_INFO_FOREGROUND; break;
case SWT.COLOR_INFO_BACKGROUND: gdkColor = COLOR_INFO_BACKGROUND; break;
case SWT.COLOR_TITLE_FOREGROUND: gdkColor = COLOR_TITLE_FOREGROUND; break;
case SWT.COLOR_TITLE_BACKGROUND: gdkColor = COLOR_TITLE_BACKGROUND; break;
case SWT.COLOR_TITLE_BACKGROUND_GRADIENT: gdkColor = COLOR_TITLE_BACKGROUND_GRADIENT; break;
case SWT.COLOR_TITLE_INACTIVE_FOREGROUND: gdkColor = COLOR_TITLE_INACTIVE_FOREGROUND; break;
case SWT.COLOR_TITLE_INACTIVE_BACKGROUND: gdkColor = COLOR_TITLE_INACTIVE_BACKGROUND; break;
case SWT.COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT: gdkColor = COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT; break;
case SWT.COLOR_WIDGET_DARK_SHADOW: gdkColor = COLOR_WIDGET_DARK_SHADOW; break;
case SWT.COLOR_WIDGET_NORMAL_SHADOW: gdkColor = COLOR_WIDGET_NORMAL_SHADOW; break;
case SWT.COLOR_WIDGET_LIGHT_SHADOW: gdkColor = COLOR_WIDGET_LIGHT_SHADOW; break;
case SWT.COLOR_WIDGET_HIGHLIGHT_SHADOW: gdkColor = COLOR_WIDGET_HIGHLIGHT_SHADOW; break;
case SWT.COLOR_WIDGET_BACKGROUND: gdkColor = COLOR_WIDGET_BACKGROUND; break;
case SWT.COLOR_WIDGET_FOREGROUND: gdkColor = COLOR_WIDGET_FOREGROUND; break;
case SWT.COLOR_WIDGET_BORDER: gdkColor = COLOR_WIDGET_BORDER; break;
case SWT.COLOR_LIST_FOREGROUND: gdkColor = COLOR_LIST_FOREGROUND; break;
case SWT.COLOR_LIST_BACKGROUND: gdkColor = COLOR_LIST_BACKGROUND; break;
case SWT.COLOR_LIST_SELECTION: gdkColor = COLOR_LIST_SELECTION; break;
case SWT.COLOR_LIST_SELECTION_TEXT: gdkColor = COLOR_LIST_SELECTION_TEXT; break;
default:
return super.getSystemColor (id);
}
if (gdkColor == null) return super.getSystemColor (SWT.COLOR_BLACK);
return Color.gtk_new (this, gdkColor);
}
/**
* Returns the matching standard platform cursor for the given
* constant, which should be one of the cursor constants
* specified in class <code>SWT</code>. This cursor should
* not be free'd because it was allocated by the system,
* not the application. A value of <code>null</code> will
* be returned if the supplied constant is not an SWT cursor
* constant.
*
* @param id the SWT cursor constant
* @return the corresponding cursor or <code>null</code>
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @see SWT#CURSOR_ARROW
* @see SWT#CURSOR_WAIT
* @see SWT#CURSOR_CROSS
* @see SWT#CURSOR_APPSTARTING
* @see SWT#CURSOR_HELP
* @see SWT#CURSOR_SIZEALL
* @see SWT#CURSOR_SIZENESW
* @see SWT#CURSOR_SIZENS
* @see SWT#CURSOR_SIZENWSE
* @see SWT#CURSOR_SIZEWE
* @see SWT#CURSOR_SIZEN
* @see SWT#CURSOR_SIZES
* @see SWT#CURSOR_SIZEE
* @see SWT#CURSOR_SIZEW
* @see SWT#CURSOR_SIZENE
* @see SWT#CURSOR_SIZESE
* @see SWT#CURSOR_SIZESW
* @see SWT#CURSOR_SIZENW
* @see SWT#CURSOR_UPARROW
* @see SWT#CURSOR_IBEAM
* @see SWT#CURSOR_NO
* @see SWT#CURSOR_HAND
*
* @since 3.0
*/
public Cursor getSystemCursor (int id) {
checkDevice ();
if (!(0 <= id && id < cursors.length)) return null;
if (cursors [id] == null) {
cursors [id] = new Cursor (this, id);
}
return cursors [id];
}
/**
* Returns the matching standard platform image for the given
* constant, which should be one of the icon constants
* specified in class <code>SWT</code>. This image should
* not be free'd because it was allocated by the system,
* not the application. A value of <code>null</code> will
* be returned either if the supplied constant is not an
* SWT icon constant or if the platform does not define an
* image that corresponds to the constant.
*
* @param id the SWT icon constant
* @return the corresponding image or <code>null</code>
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @see SWT#ICON_ERROR
* @see SWT#ICON_INFORMATION
* @see SWT#ICON_QUESTION
* @see SWT#ICON_WARNING
* @see SWT#ICON_WORKING
*
* @since 3.0
*/
public Image getSystemImage (int id) {
checkDevice ();
switch (id) {
case SWT.ICON_ERROR:
if (errorImage == null) {
errorImage = createImage ("gtk-dialog-error"); //$NON-NLS-1$
}
return errorImage;
case SWT.ICON_INFORMATION:
case SWT.ICON_WORKING:
if (infoImage == null) {
infoImage = createImage ("gtk-dialog-info"); //$NON-NLS-1$
}
return infoImage;
case SWT.ICON_QUESTION:
if (questionImage == null) {
questionImage = createImage ("gtk-dialog-question"); //$NON-NLS-1$
}
return questionImage;
case SWT.ICON_WARNING:
if (warningImage == null) {
warningImage = createImage ("gtk-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;
}
GdkColor toGdkColor (GdkRGBA rgba) {
GdkColor gdkColor = new GdkColor();
gdkColor.red = (short)(rgba.red * 0xFFFF);
gdkColor.green = (short)(rgba.green * 0xFFFF);
gdkColor.blue = (short)(rgba.blue * 0xFFFF);
return gdkColor;
}
GdkColor toGdkColor (GdkRGBA rgba, double m) {
double[] h = new double[1];
double[] s = new double[1];
double[] v = new double[1];
OS.gtk_rgb_to_hsv(rgba.red, rgba.green, rgba.blue, h, s, v);
double L = (2 - s[0]) * v[0];
double S = s[0] * v[0];
S /= (L <= 1) ? L : 2 - L;
L /= 2;
S = Math.max(0f, Math.min(1f, S * m));
L = Math.max(0f, Math.min(1f, L * m));
L *= 2;
S *= L <= 1 ? L : 2 - L;
v[0] = (L + S) / 2;
s[0] = (2 * S) / (L + S);
OS.gtk_hsv_to_rgb(h[0], s[0], v[0], h, s, v);
GdkColor gdkColor = new GdkColor();
gdkColor.red = (short)(h[0] * 0xFFFF);
gdkColor.green = (short)(s[0] * 0xFFFF);
gdkColor.blue = (short)(v[0] * 0xFFFF);
return gdkColor;
}
void getBackgroundColor (long /*int*/ context, int state, GdkRGBA rgba) {
/*
* Draw the context background to an offset screen surface and get the color
* in the middle of the surface.
*/
OS.gtk_style_context_save (context);
OS.gtk_style_context_set_state (context, state);
long /*int*/ surface = Cairo.cairo_image_surface_create (Cairo.CAIRO_FORMAT_RGB24, 1, 1);
long /*int*/ cairo = Cairo.cairo_create (surface);
OS.gtk_render_background (context, cairo, -50, -50, 100, 100);
Cairo.cairo_fill (cairo);
Cairo.cairo_surface_flush (surface);
byte[] buffer = new byte[3];
OS.memmove (buffer, Cairo.cairo_image_surface_get_data(surface), buffer.length);
rgba.red = buffer[2] / 255f;
rgba.green = buffer[1] / 255f;
rgba.blue = buffer[0] / 255f;
rgba.alpha = 1;
Cairo.cairo_surface_destroy (surface);
Cairo.cairo_destroy (cairo);
OS.gtk_style_context_restore (context);
}
void initializeSystemColors () {
long /*int*/ tooltipShellHandle = OS.gtk_window_new (OS.GTK_WINDOW_POPUP);
if (tooltipShellHandle == 0) error (SWT.ERROR_NO_HANDLES);
byte[] gtk_tooltip = Converter.wcsToMbcs (null, OS.GTK3 ? "gtk-tooltip" : "gtk-tooltips", true); //$NON-NLS-1$
OS.gtk_widget_set_name (tooltipShellHandle, gtk_tooltip);
OS.gtk_widget_realize (tooltipShellHandle);
/* Initialize link foreground */
long /*int*/ linkWidget = OS.gtk_label_new (new byte[1]);
if (linkWidget == 0) error (SWT.ERROR_NO_HANDLES);
OS.gtk_container_add (tooltipShellHandle, linkWidget);
long /*int*/ [] linkColor = new long /*int*/ [1];
OS.gtk_widget_style_get (linkWidget, OS.link_color, linkColor, 0);
GdkColor gdkColor = new GdkColor();
if (linkColor [0] != 0) {
OS.memmove (gdkColor, linkColor[0], GdkColor.sizeof);
OS.gdk_color_free (linkColor [0]);
} else {
gdkColor.blue = (short)0xeeee;
}
long /*int*/ colormap = OS.gdk_colormap_get_system();
OS.gdk_colormap_alloc_color(colormap, gdkColor, true, true);
COLOR_LINK_FOREGROUND = gdkColor;
if (OS.GTK3) {
long /*int*/ context = OS.gtk_widget_get_style_context (tooltipShellHandle);
OS.gtk_style_context_add_class (context, OS.GTK_STYLE_CLASS_TOOLTIP);
OS.gtk_style_context_invalidate(context);
GdkRGBA rgba = new GdkRGBA();
OS.gtk_style_context_get_color (context, OS.GTK_STATE_FLAG_NORMAL, rgba);
COLOR_INFO_FOREGROUND = toGdkColor (rgba);
getBackgroundColor (context, OS.GTK_STATE_FLAG_NORMAL, rgba);
COLOR_INFO_BACKGROUND = toGdkColor (rgba);
OS.gtk_widget_destroy (tooltipShellHandle);
context = OS.gtk_widget_get_style_context (shellHandle);
COLOR_WIDGET_DARK_SHADOW = toGdkColor (new GdkRGBA());
OS.gtk_style_context_get_background_color (context, OS.GTK_STATE_FLAG_NORMAL, rgba);
COLOR_WIDGET_LIGHT_SHADOW = toGdkColor (rgba);
COLOR_WIDGET_NORMAL_SHADOW = toGdkColor (rgba, 0.7);
COLOR_WIDGET_HIGHLIGHT_SHADOW = toGdkColor (rgba, 1.3);
OS.gtk_style_context_get_color (context, OS.GTK_STATE_FLAG_NORMAL, rgba);
COLOR_WIDGET_FOREGROUND = toGdkColor (rgba);
OS.gtk_style_context_get_background_color (context, OS.GTK_STATE_FLAG_NORMAL, rgba);
COLOR_WIDGET_BACKGROUND = toGdkColor (rgba);
OS.gtk_style_context_save (context);
OS.gtk_style_context_add_class(context, OS.GTK_STYLE_CLASS_VIEW);
OS.gtk_style_context_add_class(context, OS.GTK_STYLE_CLASS_CELL);
OS.gtk_style_context_invalidate(context);
OS.gtk_style_context_get_color (context, OS.GTK_STATE_FLAG_NORMAL, rgba);
COLOR_LIST_FOREGROUND = toGdkColor (rgba);
OS.gtk_style_context_get_background_color (context, OS.GTK_STATE_FLAG_NORMAL, rgba);
COLOR_LIST_BACKGROUND = toGdkColor (rgba);
OS.gtk_style_context_restore (context);
OS.gtk_style_context_get_color (context, OS.GTK_STATE_FLAG_SELECTED, rgba);
COLOR_LIST_SELECTION_TEXT = toGdkColor (rgba);
OS.gtk_style_context_get_background_color (context, OS.GTK_STATE_FLAG_SELECTED, rgba);
COLOR_LIST_SELECTION = toGdkColor (rgba);
OS.gtk_style_context_get_color (context, OS.GTK_STATE_FLAG_ACTIVE, rgba);
COLOR_LIST_SELECTION_TEXT_INACTIVE = toGdkColor (rgba);
OS.gtk_style_context_get_background_color (context, OS.GTK_STATE_FLAG_ACTIVE, rgba);
COLOR_LIST_SELECTION_INACTIVE = toGdkColor (rgba);
COLOR_TITLE_FOREGROUND = COLOR_LIST_SELECTION_TEXT;
COLOR_TITLE_BACKGROUND = COLOR_LIST_SELECTION;
OS.gtk_style_context_get_background_color (context, OS.GTK_STATE_FLAG_SELECTED, rgba);
COLOR_TITLE_BACKGROUND_GRADIENT = toGdkColor (rgba, 1.3);
OS.gtk_style_context_get_color (context, OS.GTK_STATE_FLAG_INSENSITIVE, rgba);
COLOR_TITLE_INACTIVE_FOREGROUND = toGdkColor (rgba);
OS.gtk_style_context_get_background_color (context, OS.GTK_STATE_FLAG_INSENSITIVE, rgba);
COLOR_TITLE_INACTIVE_BACKGROUND = toGdkColor (rgba);
COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT = toGdkColor (rgba, 1.3);
return;
}
/* Get Tooltip resources */
long /*int*/ tooltipStyle = OS.gtk_widget_get_style (tooltipShellHandle);
gdkColor = new GdkColor();
OS.gtk_style_get_fg (tooltipStyle, OS.GTK_STATE_NORMAL, gdkColor);
COLOR_INFO_FOREGROUND = gdkColor;
gdkColor = new GdkColor();
OS.gtk_style_get_bg (tooltipStyle, OS.GTK_STATE_NORMAL, gdkColor);
COLOR_INFO_BACKGROUND = gdkColor;
OS.gtk_widget_destroy (tooltipShellHandle);
/* Get Shell resources */
long /*int*/ style = OS.gtk_widget_get_style (shellHandle);
gdkColor = new GdkColor();
OS.gtk_style_get_black (style, gdkColor);
COLOR_WIDGET_DARK_SHADOW = gdkColor;
gdkColor = new GdkColor();
OS.gtk_style_get_dark (style, OS.GTK_STATE_NORMAL, gdkColor);
COLOR_WIDGET_NORMAL_SHADOW = gdkColor;
gdkColor = new GdkColor();
OS.gtk_style_get_bg (style, OS.GTK_STATE_NORMAL, gdkColor);
COLOR_WIDGET_LIGHT_SHADOW = gdkColor;
gdkColor = new GdkColor();
OS.gtk_style_get_light (style, OS.GTK_STATE_NORMAL, gdkColor);
COLOR_WIDGET_HIGHLIGHT_SHADOW = gdkColor;
gdkColor = new GdkColor();
OS.gtk_style_get_fg (style, OS.GTK_STATE_NORMAL, gdkColor);
COLOR_WIDGET_FOREGROUND = gdkColor;
gdkColor = new GdkColor();
OS.gtk_style_get_bg (style, OS.GTK_STATE_NORMAL, gdkColor);
COLOR_WIDGET_BACKGROUND = gdkColor;
//gdkColor = new GdkColor();
//OS.gtk_style_get_text (style, OS.GTK_STATE_NORMAL, gdkColor);
//COLOR_TEXT_FOREGROUND = gdkColor;
//gdkColor = new GdkColor();
//OS.gtk_style_get_base (style, OS.GTK_STATE_NORMAL, gdkColor);
//COLOR_TEXT_BACKGROUND = gdkColor;
gdkColor = new GdkColor();
OS.gtk_style_get_text (style, OS.GTK_STATE_NORMAL, gdkColor);
COLOR_LIST_FOREGROUND = gdkColor;
gdkColor = new GdkColor();
OS.gtk_style_get_base (style, OS.GTK_STATE_NORMAL, gdkColor);
COLOR_LIST_BACKGROUND = gdkColor;
gdkColor = new GdkColor();
OS.gtk_style_get_text (style, OS.GTK_STATE_SELECTED, gdkColor);
COLOR_LIST_SELECTION_TEXT = gdkColor;
gdkColor = new GdkColor();
OS.gtk_style_get_base (style, OS.GTK_STATE_SELECTED, gdkColor);
COLOR_LIST_SELECTION = gdkColor;
gdkColor = new GdkColor();
OS.gtk_style_get_text (style, OS.GTK_STATE_ACTIVE, gdkColor);
COLOR_LIST_SELECTION_TEXT_INACTIVE = gdkColor;
gdkColor = new GdkColor();
OS.gtk_style_get_base (style, OS.GTK_STATE_ACTIVE, gdkColor);
COLOR_LIST_SELECTION_INACTIVE = gdkColor;
gdkColor = new GdkColor();
OS.gtk_style_get_bg (style, OS.GTK_STATE_SELECTED, gdkColor);
COLOR_TITLE_BACKGROUND = gdkColor;
gdkColor = new GdkColor();
OS.gtk_style_get_fg (style, OS.GTK_STATE_SELECTED, gdkColor);
COLOR_TITLE_FOREGROUND = gdkColor;
gdkColor = new GdkColor();
OS.gtk_style_get_light (style, OS.GTK_STATE_SELECTED, gdkColor);
COLOR_TITLE_BACKGROUND_GRADIENT = gdkColor;
gdkColor = new GdkColor();
OS.gtk_style_get_bg (style, OS.GTK_STATE_INSENSITIVE, gdkColor);
COLOR_TITLE_INACTIVE_BACKGROUND = gdkColor;
gdkColor = new GdkColor();
OS.gtk_style_get_fg (style, OS.GTK_STATE_INSENSITIVE, gdkColor);
COLOR_TITLE_INACTIVE_FOREGROUND = gdkColor;
gdkColor = new GdkColor();
OS.gtk_style_get_light (style, OS.GTK_STATE_INSENSITIVE, gdkColor);
COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT = gdkColor;
}
/**
* 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 /*int*/ handle) {
if (handle == 0) return null;
if (lastWidget != null && lastHandle == handle) return lastWidget;
long /*int*/ index = OS.g_object_get_qdata (handle, SWT_OBJECT_INDEX) - 1;
if (0 <= index && index < widgetTable.length) {
lastHandle = handle;
return lastWidget = widgetTable [(int)/*64*/index];
}
return null;
}
long /*int*/ idleProc (long /*int*/ 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 ();
initializeWindowManager ();
}
void initializeCallbacks () {
closures = new long /*int*/ [Widget.LAST_SIGNAL];
closuresCount = new int[Widget.LAST_SIGNAL];
closuresProc = new long /*int*/ [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, OS.GTK_TYPE_WIDGET ());
signalIds [Widget.BUTTON_RELEASE_EVENT] = OS.g_signal_lookup (OS.button_release_event, OS.GTK_TYPE_WIDGET ());
signalIds [Widget.CONFIGURE_EVENT] = OS.g_signal_lookup (OS.configure_event, OS.GTK_TYPE_WIDGET ());
signalIds [Widget.DELETE_EVENT] = OS.g_signal_lookup (OS.delete_event, OS.GTK_TYPE_WIDGET ());
signalIds [Widget.ENTER_NOTIFY_EVENT] = OS.g_signal_lookup (OS.enter_notify_event, OS.GTK_TYPE_WIDGET ());
signalIds [Widget.EVENT] = OS.g_signal_lookup (OS.event, OS.GTK_TYPE_WIDGET ());
signalIds [Widget.EVENT_AFTER] = OS.g_signal_lookup (OS.event_after, OS.GTK_TYPE_WIDGET ());
signalIds [Widget.EXPOSE_EVENT] = OS.g_signal_lookup (OS.GTK3 ? OS.draw : OS.expose_event, OS.GTK_TYPE_WIDGET ());
signalIds [Widget.FOCUS] = OS.g_signal_lookup (OS.focus, OS.GTK_TYPE_WIDGET ());
signalIds [Widget.FOCUS_IN_EVENT] = OS.g_signal_lookup (OS.focus_in_event, OS.GTK_TYPE_WIDGET ());
signalIds [Widget.FOCUS_OUT_EVENT] = OS.g_signal_lookup (OS.focus_out_event, OS.GTK_TYPE_WIDGET ());
signalIds [Widget.GRAB_FOCUS] = OS.g_signal_lookup (OS.grab_focus, OS.GTK_TYPE_WIDGET ());
signalIds [Widget.HIDE] = OS.g_signal_lookup (OS.hide, OS.GTK_TYPE_WIDGET ());
signalIds [Widget.KEY_PRESS_EVENT] = OS.g_signal_lookup (OS.key_press_event, OS.GTK_TYPE_WIDGET ());
signalIds [Widget.KEY_RELEASE_EVENT] = OS.g_signal_lookup (OS.key_release_event, OS.GTK_TYPE_WIDGET ());
signalIds [Widget.LEAVE_NOTIFY_EVENT] = OS.g_signal_lookup (OS.leave_notify_event, OS.GTK_TYPE_WIDGET ());
signalIds [Widget.MAP] = OS.g_signal_lookup (OS.map, OS.GTK_TYPE_WIDGET ());
signalIds [Widget.MAP_EVENT] = OS.g_signal_lookup (OS.map_event, OS.GTK_TYPE_WIDGET ());
signalIds [Widget.MNEMONIC_ACTIVATE] = OS.g_signal_lookup (OS.mnemonic_activate, OS.GTK_TYPE_WIDGET ());
signalIds [Widget.MOTION_NOTIFY_EVENT] = OS.g_signal_lookup (OS.motion_notify_event, OS.GTK_TYPE_WIDGET ());
signalIds [Widget.POPUP_MENU] = OS.g_signal_lookup (OS.popup_menu, OS.GTK_TYPE_WIDGET ());
signalIds [Widget.REALIZE] = OS.g_signal_lookup (OS.realize, OS.GTK_TYPE_WIDGET ());
signalIds [Widget.SCROLL_EVENT] = OS.g_signal_lookup (OS.scroll_event, OS.GTK_TYPE_WIDGET ());
signalIds [Widget.SHOW] = OS.g_signal_lookup (OS.show, OS.GTK_TYPE_WIDGET ());
signalIds [Widget.SHOW_HELP] = OS.g_signal_lookup (OS.show_help, OS.GTK_TYPE_WIDGET ());
signalIds [Widget.SIZE_ALLOCATE] = OS.g_signal_lookup (OS.size_allocate, OS.GTK_TYPE_WIDGET ());
signalIds [Widget.STYLE_SET] = OS.g_signal_lookup (OS.style_set, OS.GTK_TYPE_WIDGET ());
signalIds [Widget.UNMAP] = OS.g_signal_lookup (OS.unmap, OS.GTK_TYPE_WIDGET ());
signalIds [Widget.UNMAP_EVENT] = OS.g_signal_lookup (OS.unmap_event, OS.GTK_TYPE_WIDGET ());
signalIds [Widget.UNREALIZE] = OS.g_signal_lookup (OS.realize, OS.GTK_TYPE_WIDGET ());
signalIds [Widget.VISIBILITY_NOTIFY_EVENT] = OS.g_signal_lookup (OS.visibility_notify_event, OS.GTK_TYPE_WIDGET ());
signalIds [Widget.WINDOW_STATE_EVENT] = OS.g_signal_lookup (OS.window_state_event, OS.GTK_TYPE_WIDGET ());
windowCallback2 = new Callback (this, "windowProc", 2); //$NON-NLS-1$
windowProc2 = windowCallback2.getAddress ();
if (windowProc2 == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
closuresProc [Widget.ACTIVATE] = windowProc2;
closuresProc [Widget.ACTIVATE_INVERSE] = windowProc2;
closuresProc [Widget.CHANGED] = windowProc2;
closuresProc [Widget.CLICKED] = 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.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 ();
if (windowProc3 == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
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] = 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.STYLE_SET] = windowProc3;
closuresProc [Widget.TOGGLED] = windowProc3;
closuresProc [Widget.UNMAP_EVENT] = windowProc3;
closuresProc [Widget.VISIBILITY_NOTIFY_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 ();
if (windowProc4 == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
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.DELETE_FROM_CURSOR] = windowProc4;
closuresProc [Widget.DELETE_FROM_CURSOR_INVERSE] = windowProc4;
windowCallback5 = new Callback (this, "windowProc", 5); //$NON-NLS-1$
windowProc5 = windowCallback5.getAddress ();
if (windowProc5 == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
closuresProc [Widget.CHANGE_VALUE] = windowProc5;
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;
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 ();
if (timerProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
windowTimerCallback = new Callback (this, "windowTimerProc", 1); //$NON-NLS-1$
windowTimerProc = windowTimerCallback.getAddress ();
if (windowTimerProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
mouseHoverCallback = new Callback (this, "mouseHoverProc", 1); //$NON-NLS-1$
mouseHoverProc = mouseHoverCallback.getAddress ();
if (mouseHoverProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
caretCallback = new Callback(this, "caretProc", 1); //$NON-NLS-1$
caretProc = caretCallback.getAddress();
if (caretProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
menuPositionCallback = new Callback(this, "menuPositionProc", 5); //$NON-NLS-1$
menuPositionProc = menuPositionCallback.getAddress();
if (menuPositionProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
sizeAllocateCallback = new Callback(this, "sizeAllocateProc", 3); //$NON-NLS-1$
sizeAllocateProc = sizeAllocateCallback.getAddress();
if (sizeAllocateProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
sizeRequestCallback = new Callback(this, "sizeRequestProc", 3); //$NON-NLS-1$
sizeRequestProc = sizeRequestCallback.getAddress();
if (sizeRequestProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
shellMapCallback = new Callback(this, "shellMapProc", 3); //$NON-NLS-1$
shellMapProc = shellMapCallback.getAddress();
if (shellMapProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
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 ();
if (cellDataProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
setDirectionCallback = new Callback (this, "setDirectionProc", 2); //$NON-NLS-1$
setDirectionProc = setDirectionCallback.getAddress ();
if (setDirectionProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
emissionProcCallback = new Callback (this, "emissionProc", 4); //$NON-NLS-1$
emissionProc = emissionProcCallback.getAddress ();
if (emissionProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
allChildrenCallback = new Callback (this, "allChildrenProc", 2); //$NON-NLS-1$
allChildrenProc = allChildrenCallback.getAddress ();
if (allChildrenProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
checkIfEventCallback = new Callback (this, "checkIfEventProc", 3); //$NON-NLS-1$
checkIfEventProc = checkIfEventCallback.getAddress ();
if (checkIfEventProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
idleCallback = new Callback (this, "idleProc", 1); //$NON-NLS-1$
idleProc = idleCallback.getAddress ();
if (idleProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
}
void initializeSubclasses () {
long /*int*/ pangoLayoutType = OS.PANGO_TYPE_LAYOUT ();
long /*int*/ 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);
if (OS.GTK3) {
long /*int*/ imContextType = OS.GTK_TYPE_IM_MULTICONTEXT ();
long /*int*/ 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);
}
}
void initializeSystemSettings () {
OS.g_signal_connect (shellHandle, OS.style_set, signalProc, STYLE_SET);
/*
* Feature in GTK. Despite the fact that the
* gtk-entry-select-on-focus property is a global
* setting, it is initialized when the GtkEntry
* is initialized. This means that it cannot be
* accessed before a GtkEntry is created. The
* fix is to for the initializaion by creating
* a temporary GtkEntry.
*/
long /*int*/ entry = OS.gtk_entry_new ();
OS.gtk_widget_destroy (entry);
int [] buffer2 = new int [1];
long /*int*/ settings = OS.gtk_settings_get_default ();
OS.g_object_get (settings, OS.gtk_entry_select_on_focus, buffer2, 0);
entrySelectOnFocus = buffer2 [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 initializeWindowManager () {
/* Get the window manager name */
windowManager = ""; //$NON-NLS-1$
long /*int*/ screen = OS.gdk_screen_get_default ();
if (screen != 0) {
long /*int*/ ptr2 = OS.gdk_x11_screen_get_window_manager_name (screen);
if (ptr2 != 0) {
int length = OS.strlen (ptr2);
if (length > 0) {
byte [] buffer2 = new byte [length];
OS.memmove (buffer2, ptr2, length);
windowManager = new String (Converter.mbcsToWcs (null, buffer2));
}
}
}
}
/**
* Invokes platform specific functionality to dispose a GC handle.
* <p>
* <b>IMPORTANT:</b> This method is <em>not</em> part of the public
* API for <code>Display</code>. It is marked public only so that it
* can be shared within the packages provided by SWT. It is not
* available on all platforms, and should never be called from
* application code.
* </p>
*
* @param hDC the platform specific GC handle
* @param data the platform specific GC data
*
* @noreference This method is not intended to be referenced by clients.
*/
@Override
public void internal_dispose_GC (long /*int*/ hDC, GCData data) {
long /*int*/ gc = hDC;
if (OS.USE_CAIRO) {
Cairo.cairo_destroy (gc);
} else {
OS.g_object_unref (gc);
}
}
/**
* Invokes platform specific functionality to allocate a new GC handle.
* <p>
* <b>IMPORTANT:</b> This method is <em>not</em> part of the public
* API for <code>Display</code>. It is marked public only so that it
* can be shared within the packages provided by SWT. It is not
* available on all platforms, and should never be called from
* application code.
* </p>
*
* @param data the platform specific GC data
* @return the platform specific GC handle
*
* @exception SWTException <ul>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
* @exception SWTError <ul>
* <li>ERROR_NO_HANDLES if a handle could not be obtained for gc creation</li>
* </ul>
*
* @noreference This method is not intended to be referenced by clients.
*/
@Override
public long /*int*/ internal_new_GC (GCData data) {
if (isDisposed()) error(SWT.ERROR_DEVICE_DISPOSED);
long /*int*/ root = OS.gdk_get_default_root_window();
long /*int*/ gc;
if (OS.USE_CAIRO) {
gc = OS.gdk_cairo_create (root);
if (gc == 0) error (SWT.ERROR_NO_HANDLES);
//TODO how gdk_gc_set_subwindow is done in cairo?
} else {
gc = OS.gdk_gc_new (root);
if (gc == 0) error (SWT.ERROR_NO_HANDLES);
OS.gdk_gc_set_subwindow (gc, OS.GDK_INCLUDE_INFERIORS);
}
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.background = getSystemColor (SWT.COLOR_WHITE).handle;
data.foreground = 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) {
long /*int*/ window = from.eventWindow ();
int [] origin_x = new int [1], origin_y = new int [1];
OS.gdk_window_get_origin (window, origin_x, origin_y);
if ((from.style & SWT.MIRRORED) != 0) point.x = from.getClientWidth () - point.x;
point.x += origin_x [0];
point.y += origin_y [0];
}
if (to != null) {
long /*int*/ window = to.eventWindow ();
int [] origin_x = new int [1], origin_y = new int [1];
OS.gdk_window_get_origin (window, origin_x, origin_y);
point.x -= origin_x [0];
point.y -= origin_y [0];
if ((to.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);
}
static char mbcsToWcs (char ch) {
int key = ch & 0xFFFF;
if (key <= 0x7F) return ch;
byte [] buffer;
if (key <= 0xFF) {
buffer = new byte [1];
buffer [0] = (byte) key;
} else {
buffer = new byte [2];
buffer [0] = (byte) ((key >> 8) & 0xFF);
buffer [1] = (byte) (key & 0xFF);
}
char [] result = Converter.mbcsToWcs (null, buffer);
if (result.length == 0) return 0;
return result [0];
}
long /*int*/ menuPositionProc (long /*int*/ menu, long /*int*/ x, long /*int*/ y, long /*int*/ push_in, long /*int*/ user_data) {
Widget widget = getWidget (menu);
if (widget == null) return 0;
return widget.menuPositionProc (menu, x, y, push_in, user_data);
}
/**
* Maps a point from one coordinate system to another.
* When the control is null, coordinates are mapped to
* the display.
* <p>
* NOTE: On right-to-left platforms where the coordinate
* systems are mirrored, special care needs to be taken
* when mapping coordinates from one control to another
* to ensure the result is correctly mirrored.
*
* Mapping a point that is the origin of a rectangle and
* then adding the width and height is not equivalent to
* mapping the rectangle. When one control is mirrored
* and the other is not, adding the width and height to a
* point that was mapped causes the rectangle to extend
* in the wrong direction. Mapping the entire rectangle
* instead of just one point causes both the origin and
* the corner of the rectangle to be mapped.
* </p>
*
* @param from the source <code>Control</code> or <code>null</code>
* @param to the destination <code>Control</code> or <code>null</code>
* @param x coordinates to be mapped
* @param y coordinates to be mapped
* @param width coordinates to be mapped
* @param height coordinates to be mapped
* @return rectangle with mapped coordinates
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_INVALID_ARGUMENT - if the Control from or the Control to have been disposed</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @since 2.1.2
*/
public Rectangle map (Control from, Control to, int x, int y, int width, int height) {
checkDevice();
if (from != null && from.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT);
if (to != null && to.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT);
Rectangle rect = new Rectangle (x, y, width, height);
if (from == to) return rect;
boolean fromRTL = false, toRTL = false;
if (from != null) {
long /*int*/ window = from.eventWindow ();
int [] origin_x = new int [1], origin_y = new int [1];
OS.gdk_window_get_origin (window, origin_x, origin_y);
if (fromRTL = (from.style & SWT.MIRRORED) != 0) rect.x = from.getClientWidth() - rect.x;
rect.x += origin_x [0];
rect.y += origin_y [0];
}
if (to != null) {
long /*int*/ window = to.eventWindow ();
int [] origin_x = new int [1], origin_y = new int [1];
OS.gdk_window_get_origin (window, origin_x, origin_y);
rect.x -= origin_x [0];
rect.y -= origin_y [0];
if (toRTL = (to.style & SWT.MIRRORED) != 0) rect.x = to.getClientWidth () - rect.x;
}
if (fromRTL != toRTL) rect.x -= rect.width;
return rect;
}
long /*int*/ mouseHoverProc (long /*int*/ handle) {
Widget widget = getWidget (handle);
if (widget == null) return 0;
return widget.hoverProc (handle);
}
/**
* Generate a low level system event.
*
* <code>post</code> is used to generate low level keyboard
* and mouse events. The intent is to enable automated UI
* testing by simulating the input from the user. Most
* SWT applications should never need to call this method.
* <p>
* Note that this operation can fail when the operating system
* fails to generate the event for any reason. For example,
* this can happen when there is no such key or mouse button
* or when the system event queue is full.
* </p>
* <p>
* <b>Event Types:</b>
* <p>KeyDown, KeyUp
* <p>The following fields in the <code>Event</code> apply:
* <ul>
* <li>(in) type KeyDown or KeyUp</li>
* <p> Either one of:
* <li>(in) character a character that corresponds to a keyboard key</li>
* <li>(in) keyCode the key code of the key that was typed,
* as defined by the key code constants in class <code>SWT</code></li>
* </ul>
* <p>MouseDown, MouseUp</p>
* <p>The following fields in the <code>Event</code> apply:
* <ul>
* <li>(in) type MouseDown or MouseUp
* <li>(in) button the button that is pressed or released
* </ul>
* <p>MouseMove</p>
* <p>The following fields in the <code>Event</code> apply:
* <ul>
* <li>(in) type MouseMove
* <li>(in) x the x coordinate to move the mouse pointer to in screen coordinates
* <li>(in) y the y coordinate to move the mouse pointer to in screen coordinates
* </ul>
* <p>MouseWheel</p>
* <p>The following fields in the <code>Event</code> apply:
* <ul>
* <li>(in) type MouseWheel
* <li>(in) detail either SWT.SCROLL_LINE or SWT.SCROLL_PAGE
* <li>(in) count the number of lines or pages to scroll
* </ul>
* </dl>
*
* @param event the event to be generated
*
* @return true if the event was generated or false otherwise
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the event is null</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @since 3.0
*
*/
public boolean post (Event event) {
/*
* Get the operating system lock before synchronizing on the device
* lock so that the device lock will not be held should another
* thread already be in the operating system. This avoids deadlock
* should the other thread need the device lock.
*/
Lock lock = OS.lock;
lock.lock();
try {
synchronized (Device.class) {
if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED);
if (event == null) error (SWT.ERROR_NULL_ARGUMENT);
if (!OS.GDK_WINDOWING_X11()) return false;
long /*int*/ xDisplay = OS.gdk_x11_display_get_xdisplay(OS.gdk_display_get_default());
int type = event.type;
switch (type) {
case SWT.KeyDown:
case SWT.KeyUp: {
int keyCode = 0;
long /*int*/ keysym = untranslateKey (event.keyCode);
if (keysym != 0) keyCode = OS.XKeysymToKeycode (xDisplay, keysym);
if (keyCode == 0) {
char key = event.character;
switch (key) {
case SWT.BS: keysym = OS.GDK_BackSpace; break;
case SWT.CR: keysym = OS.GDK_Return; break;
case SWT.DEL: keysym = OS.GDK_Delete; break;
case SWT.ESC: keysym = OS.GDK_Escape; break;
case SWT.TAB: keysym = OS.GDK_Tab; break;
case SWT.LF: keysym = OS.GDK_Linefeed; break;
default:
keysym = key;
}
keyCode = OS.XKeysymToKeycode (xDisplay, keysym);
if (keyCode == 0) return false;
}
OS.XTestFakeKeyEvent (xDisplay, keyCode, type == SWT.KeyDown, 0);
return true;
}
case SWT.MouseDown:
case SWT.MouseMove:
case SWT.MouseUp: {
if (type == SWT.MouseMove) {
OS.XTestFakeMotionEvent (xDisplay, -1, event.x, event.y, 0);
} else {
int button = event.button;
switch (button) {
case 1:
case 2:
case 3: break;
case 4: button = 6; break;
case 5: button = 7; break;
default: return false;
}
OS.XTestFakeButtonEvent (xDisplay, button, type == SWT.MouseDown, 0);
}
return true;
}
/*
* This code is intentionally commented. After posting a
* mouse wheel event the system may respond unpredictably
* to subsequent mouse actions.
*/
// case SWT.MouseWheel: {
// if (event.count == 0) return false;
// int button = event.count < 0 ? 5 : 4;
// OS.XTestFakeButtonEvent (xDisplay, button, type == SWT.MouseWheel, 0);
// }
}
return false;
}
} finally {
lock.unlock();
}
}
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 /*int*/ event = gdkEvents [i];
Widget widget = gdkEventWidgets [i];
if (widget == null || !widget.isDisposed ()) {
OS.gdk_event_put (event);
}
OS.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.
*/
OS.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++) {
if (disposeList [i] != null) disposeList [i].run ();
}
}
disposeList = null;
synchronizer.releaseSynchronizer ();
synchronizer = null;
releaseDisplay ();
super.release ();
}
void releaseDisplay () {
windowCallback2.dispose (); windowCallback2 = null;
windowCallback3.dispose (); windowCallback3 = null;
windowCallback4.dispose (); windowCallback4 = null;
windowCallback5.dispose (); windowCallback5 = null;
windowProc2 = windowProc3 = windowProc4 = windowProc5 = 0;
/* Dispose xfilter callback */
if (filterProc != 0) {
OS.gdk_window_remove_filter(0, filterProc, 0);
}
filterCallback.dispose(); filterCallback = null;
filterProc = 0;
/* Dispose checkIfEvent callback */
checkIfEventCallback.dispose(); checkIfEventCallback = null;
checkIfEventProc = 0;
/* Dispose preedit window */
if (preeditWindow != 0) OS.gtk_widget_destroy (preeditWindow);
imControl = null;
/* Dispose the menu callback */
menuPositionCallback.dispose (); menuPositionCallback = null;
menuPositionProc = 0;
/* Dispose the 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 = COLOR_WIDGET_NORMAL_SHADOW = COLOR_WIDGET_LIGHT_SHADOW =
COLOR_WIDGET_HIGHLIGHT_SHADOW = COLOR_WIDGET_BACKGROUND = COLOR_WIDGET_BORDER =
COLOR_LIST_FOREGROUND = COLOR_LIST_BACKGROUND = COLOR_LIST_SELECTION = COLOR_LIST_SELECTION_TEXT =
COLOR_LIST_SELECTION_INACTIVE = COLOR_LIST_SELECTION_TEXT_INACTIVE =
COLOR_WIDGET_FOREGROUND = COLOR_TITLE_FOREGROUND = COLOR_TITLE_BACKGROUND = COLOR_TITLE_BACKGROUND_GRADIENT =
COLOR_TITLE_INACTIVE_FOREGROUND = COLOR_TITLE_INACTIVE_BACKGROUND = COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT =
COLOR_INFO_BACKGROUND = COLOR_INFO_FOREGROUND = COLOR_LINK_FOREGROUND = null;
/* Dispose the event callback */
OS.gdk_event_handler_set (0, 0, 0);
eventCallback.dispose (); eventCallback = null;
/* Dispose the hidden shell */
if (shellHandle != 0) OS.gtk_widget_destroy (shellHandle);
shellHandle = 0;
/* Dispose the settings callback */
signalCallback.dispose(); signalCallback = null;
signalProc = 0;
/* Dispose subclass */
long /*int*/ pangoLayoutType = OS.PANGO_TYPE_LAYOUT ();
long /*int*/ pangoLayoutClass = OS.g_type_class_ref (pangoLayoutType);
OS.G_OBJECT_CLASS_SET_CONSTRUCTOR (pangoLayoutClass, pangoLayoutNewProc);
OS.g_type_class_unref (pangoLayoutClass);
pangoLayoutNewProc = 0;
if (OS.GTK3) {
long /*int*/ imContextType = OS.GTK_TYPE_IM_MULTICONTEXT ();
long /*int*/ imContextClass = OS.g_type_class_ref (imContextType);
OS.G_OBJECT_CLASS_SET_CONSTRUCTOR (imContextClass, imContextNewProc);
OS.g_type_class_unref (imContextClass);
imContextNewProc = 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;
windowManager = null;
eventTable = filterTable = null;
modalDialog = null;
flushRect = null;
exposeEvent = null;
visibilityEvent = null;
idleLock = null;
}
/**
* 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 /*int*/ removeGdkEvent () {
if (gdkEventCount == 0) return 0;
long /*int*/ 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 /*int*/ 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 /*int*/ handle) {
if (handle == 0) return null;
lastWidget = null;
Widget widget = null;
int index = (int)/*64*/ OS.g_object_get_qdata (handle, SWT_OBJECT_INDEX) - 1;
if (0 <= index && index < widgetTable.length) {
widget = widgetTable [index];
widgetTable [index] = null;
indexTable [index] = freeSlot;
freeSlot = index;
OS.g_object_set_qdata (handle, SWT_OBJECT_INDEX, 0);
}
return widget;
}
boolean runAsyncMessages (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.
* On Motif, for example, this can be used to set
* the name used for resource lookup. Accessibility
* tools may also ask for the application name.
* </p><p>
* Specifying <code>null</code> for the name clears it.
* </p>
*
* @param name the new app name or <code>null</code>
*/
public static void setAppName (String name) {
APP_NAME = name;
}
/**
* Sets the application version to the argument.
*
* @param version the new app version
*
* @since 3.6
*/
public static void setAppVersion (String version) {
APP_VERSION = version;
}
/**
* Sets the location of the on-screen pointer relative to the top left corner
* of the screen. <b>Note: It is typically considered bad practice for a
* program to move the on-screen pointer location.</b>
*
* @param x the new x coordinate for the cursor
* @param y the new y coordinate for the cursor
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @since 2.1
*/
public void setCursorLocation (int x, int y) {
checkDevice ();
if (OS.GDK_WINDOWING_X11 ()) {
long /*int*/ xDisplay = OS.gdk_x11_display_get_xdisplay(OS.gdk_display_get_default());
long /*int*/ xWindow = OS.XDefaultRootWindow (xDisplay);
OS.XWarpPointer (xDisplay, OS.None, xWindow, 0, 0, 0, 0, x, y);
}
}
/**
* Sets the location of the on-screen pointer relative to the top left corner
* of the screen. <b>Note: It is typically considered bad practice for a
* program to move the on-screen pointer location.</b>
*
* @param point new position
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_NULL_ARGUMENT - if the point is null
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @since 2.0
*/
public void setCursorLocation (Point point) {
checkDevice ();
if (point == null) error (SWT.ERROR_NULL_ARGUMENT);
setCursorLocation (point.x, point.y);
}
/**
* Sets the application defined property of the receiver
* with the specified name to the given argument.
* <p>
* Applications may have associated arbitrary objects with the
* receiver in this fashion. If the objects stored in the
* properties need to be notified when the display is disposed
* of, it is the application's responsibility provide a
* <code>disposeExec()</code> handler which does so.
* </p>
*
* @param key the name of the property
* @param value the new value for the property
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the key is null</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @see #getData(String)
* @see #disposeExec(Runnable)
*/
public void setData (String key, Object value) {
checkDevice ();
if (key == null) error (SWT.ERROR_NULL_ARGUMENT);
if (key.equals (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 /*int*/ 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;
}
/* 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 /*int*/ setDirectionProc (long /*int*/ widget, long /*int*/ direction) {
OS.gtk_widget_set_direction (widget, (int)/*64*/ direction);
if (OS.GTK_IS_MENU_ITEM (widget)) {
long /*int*/ submenu = OS.gtk_menu_item_get_submenu (widget);
if (submenu != 0) {
OS.gtk_widget_set_direction (submenu, (int)/*64*/ direction);
OS.gtk_container_forall (submenu, setDirectionProc, direction);
}
}
if (OS.GTK_IS_CONTAINER (widget)) {
OS.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.runAsyncMessages(true);
}
}
void showIMWindow (Control control) {
imControl = control;
if (preeditWindow == 0) {
preeditWindow = OS.gtk_window_new (OS.GTK_WINDOW_POPUP);
if (preeditWindow == 0) error (SWT.ERROR_NO_HANDLES);
preeditLabel = OS.gtk_label_new (null);
if (preeditLabel == 0) error (SWT.ERROR_NO_HANDLES);
OS.gtk_container_add (preeditWindow, preeditLabel);
OS.gtk_widget_show (preeditLabel);
}
long /*int*/ [] preeditString = new long /*int*/ [1];
long /*int*/ [] pangoAttrs = new long /*int*/ [1];
long /*int*/ imHandle = control.imHandle ();
OS.gtk_im_context_get_preedit_string (imHandle, preeditString, pangoAttrs, null);
if (preeditString [0] != 0 && OS.strlen (preeditString [0]) > 0) {
Control widget = control.findBackgroundControl ();
if (widget == null) widget = control;
GdkColor color = widget.getBackgroundColor ();
if (OS.GTK3) {
widget.setBackgroundColor (preeditWindow, color);
} else {
OS.gtk_widget_modify_bg (preeditWindow, OS.GTK_STATE_NORMAL, color);
}
widget.setForegroundColor (preeditLabel, control.getForegroundColor());
widget.setFontDescription (preeditLabel, control.getFontDescription ());
if (pangoAttrs [0] != 0) OS.gtk_label_set_attributes (preeditLabel, pangoAttrs[0]);
OS.gtk_label_set_text (preeditLabel, preeditString [0]);
Point point = control.toDisplay (control.getIMCaretPos ());
OS.gtk_window_move (preeditWindow, point.x, point.y);
GtkRequisition requisition = new GtkRequisition ();
if (OS.GTK3) {
OS.gtk_widget_get_preferred_size (preeditLabel, requisition, null);
} else {
OS.gtk_widget_size_request (preeditLabel, requisition);
}
OS.gtk_window_resize (preeditWindow, requisition.width, requisition.height);
OS.gtk_widget_show (preeditWindow);
} else {
OS.gtk_widget_hide (preeditWindow);
}
if (preeditString [0] != 0) OS.g_free (preeditString [0]);
if (pangoAttrs [0] != 0) OS.pango_attr_list_unref (pangoAttrs [0]);
}
/**
* Causes the user-interface thread to <em>sleep</em> (that is,
* to be put in a state where it does not consume CPU cycles)
* until an event is received or it is otherwise awakened.
*
* @return <code>true</code> if an event requiring dispatching was placed on the queue.
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @see #wake
*/
public boolean sleep () {
checkDevice ();
if (gdkEventCount == 0) {
gdkEvents = null;
gdkEventWidgets = null;
}
if (settingsChanged) {
settingsChanged = false;
runSettings = true;
return false;
}
if (getMessageCount () != 0) return true;
if (fds == 0) {
allocated_nfds = 2;
fds = OS.g_malloc (OS.GPollFD_sizeof () * allocated_nfds);
}
max_priority [0] = timeout [0] = 0;
long /*int*/ 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 /*int*/ 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;
/* Exit the OS lock to allow other threads to enter GTK */
Lock lock = OS.lock;
int count = lock.lock ();
for (int i = 0; i < count; i++) lock.unlock ();
try {
wake = false;
OS.Call (poll, fds, nfds, timeout [0]);
} finally {
for (int i = 0; i < count; i++) lock.lock ();
lock.unlock ();
}
}
}
OS.g_main_context_check (context, max_priority [0], fds, nfds);
OS.g_main_context_release (context);
}
} while (!result && getMessageCount () == 0 && !wake);
wake = false;
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 /*int*/ timerProc (long /*int*/ i) {
if (timerList == null) return 0;
int index = (int)/*64*/i;
if (0 <= index && index < timerList.length) {
Runnable runnable = timerList [index];
timerList [index] = null;
timerIds [index] = 0;
if (runnable != null) runnable.run ();
}
return 0;
}
long /*int*/ caretProc (long /*int*/ clientData) {
caretId = 0;
if (currentCaret == null) {
return 0;
}
if (currentCaret.blinkCaret()) {
int blinkRate = currentCaret.blinkRate;
if (blinkRate == 0) return 0;
caretId = OS.g_timeout_add (blinkRate, caretProc, 0);
} else {
currentCaret = null;
}
return 0;
}
long /*int*/ sizeAllocateProc (long /*int*/ handle, long /*int*/ arg0, long /*int*/ user_data) {
Widget widget = getWidget (user_data);
if (widget == null) return 0;
return widget.sizeAllocateProc (handle, arg0, user_data);
}
long /*int*/ sizeRequestProc (long /*int*/ handle, long /*int*/ arg0, long /*int*/ 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) {
sendPreEvent(event);
try {
eventTable.sendEvent (event);
} finally {
sendPostEvent(event);
}
}
void sendPreEvent(Event event) {
if (event == null || (event.type != SWT.PreEvent && event.type != SWT.PostEvent)) {
if (this.eventTable != null && this.eventTable.hooks(SWT.PreEvent)) {
sendEvent(SWT.PreEvent, null);
}
}
}
void sendPostEvent(Event event) {
if (event == null || (event.type != SWT.PreEvent && event.type != SWT.PostEvent)) {
if (this.eventTable != null && this.eventTable.hooks(SWT.PostEvent)) {
sendEvent(SWT.PostEvent, 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 /*int*/ shellMapProc (long /*int*/ handle, long /*int*/ arg0, long /*int*/ user_data) {
Widget widget = getWidget (handle);
if (widget == null) return 0;
return widget.shellMapProc (handle, arg0, user_data);
}
long /*int*/ signalProc (long /*int*/ gobject, long /*int*/ arg1, long /*int*/ user_data) {
switch((int)/*64*/user_data) {
case STYLE_SET:
settingsChanged = true;
break;
case PROPERTY_NOTIFY:
GdkEventProperty gdkEvent = new GdkEventProperty ();
OS.memmove (gdkEvent, arg1);
if (gdkEvent.type == OS.GDK_PROPERTY_NOTIFY) {
byte[] name = Converter.wcsToMbcs (null, "org.eclipse.swt.filePath.message", true); //$NON-NLS-1$
long /*int*/ atom = OS.gdk_x11_atom_to_xatom (OS.gdk_atom_intern (name, true));
if (atom == OS.gdk_x11_atom_to_xatom (gdkEvent.atom)) {
long /*int*/ xWindow;
if (OS.GTK3) {
xWindow = OS.gdk_x11_window_get_xid (OS.gtk_widget_get_window (shellHandle));
} else if (OS.GTK_VERSION >= OS.VERSION(2, 14, 0)){
xWindow = OS.gdk_x11_drawable_get_xid (OS.gtk_widget_get_window( shellHandle));
} else {
xWindow = OS.gdk_x11_drawable_get_xid (OS.GTK_WIDGET_WINDOW( shellHandle));
}
long /*int*/ [] type = new long /*int*/ [1];
int [] format = new int [1];
int [] nitems = new int [1];
int [] bytes_after = new int [1];
long /*int*/ [] data = new long /*int*/ [1];
OS.XGetWindowProperty (OS.gdk_x11_display_get_xdisplay(OS.gdk_display_get_default()), xWindow, atom, 0, -1, true, OS.AnyPropertyType,
type, format, nitems, bytes_after, data);
if (nitems [0] > 0) {
byte [] buffer = new byte [nitems [0]];
OS.memmove(buffer, data [0], buffer.length);
OS.XFree (data [0]);
char[] chars = Converter.mbcsToWcs(null, buffer);
String string = new String (chars);
int lastIndex = 0;
int index = string.indexOf (':');
while (index != -1) {
String file = string.substring (lastIndex, index);
Event event = new Event ();
event.text = file;
sendEvent (SWT.OpenDocument, event);
lastIndex = index+1;
index = string.indexOf(':', lastIndex);
}
}
}
}
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);
OS.gdk_window_process_all_updates ();
}
/**
* If the receiver's user-interface thread was <code>sleep</code>ing,
* causes it to be awakened and start running again. Note that this
* method may be called from any thread.
*
* @exception SWTException <ul>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @see #sleep
*/
public void wake () {
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;
}
static char wcsToMbcs (char ch) {
int key = ch & 0xFFFF;
if (key <= 0x7F) return ch;
byte [] buffer = Converter.wcsToMbcs (null, new char [] {ch}, false);
if (buffer.length == 1) return (char) buffer [0];
if (buffer.length == 2) {
return (char) (((buffer [0] & 0xFF) << 8) | (buffer [1] & 0xFF));
}
return 0;
}
long /*int*/ windowProc (long /*int*/ handle, long /*int*/ user_data) {
Widget widget = getWidget (handle);
if (widget == null) return 0;
return widget.windowProc (handle, user_data);
}
long /*int*/ windowProc (long /*int*/ handle, long /*int*/ arg0, long /*int*/ user_data) {
Widget widget = getWidget (handle);
if (widget == null) return 0;
return widget.windowProc (handle, arg0, user_data);
}
long /*int*/ windowProc (long /*int*/ handle, long /*int*/ arg0, long /*int*/ arg1, long /*int*/ user_data) {
Widget widget = getWidget (handle);
if (widget == null) return 0;
return widget.windowProc (handle, arg0, arg1, user_data);
}
long /*int*/ windowProc (long /*int*/ handle, long /*int*/ arg0, long /*int*/ arg1, long /*int*/ arg2, long /*int*/ user_data) {
Widget widget = getWidget (handle);
if (widget == null) return 0;
return widget.windowProc (handle, arg0, arg1, arg2, user_data);
}
long /*int*/ windowTimerProc (long /*int*/ handle) {
Widget widget = getWidget (handle);
if (widget == null) return 0;
return widget.timerProc (handle);
}
long /*int*/ gdk_window_get_device_position (long /*int*/ window, int[] x, int[] y, int[] mask) {
if (OS.GTK3) {
long /*int*/ display = 0;
if( window != 0) {
display = OS.gdk_window_get_display (window);
} else {
window = OS.gdk_get_default_root_window ();
display = OS.gdk_window_get_display (window);
}
long /*int*/ device_manager = OS.gdk_display_get_device_manager (display);
long /*int*/ pointer = OS.gdk_device_manager_get_client_pointer (device_manager);
return OS.gdk_window_get_device_position(window, pointer, x, y, mask);
} else {
return OS.gdk_window_get_pointer (window, x, y, mask);
}
}
long /*int*/ gdk_device_get_window_at_position (int[] win_x, int[] win_y) {
if (OS.GTK3) {
long /*int*/ display = OS.gdk_display_get_default ();
long /*int*/ device_manager = OS.gdk_display_get_device_manager (display);
long /*int*/ device = OS.gdk_device_manager_get_client_pointer (device_manager);
return OS.gdk_device_get_window_at_position (device, win_x, win_y);
} else {
return OS.gdk_window_at_pointer (win_x, win_y);
}
}
}