javauis/eswt_qt/org.eclipse.swt/Eclipse SWT/qt/org/eclipse/swt/widgets/Widget.java
/*******************************************************************************
* Copyright (c) 2000, 2007 IBM Corporation and others.
* Portion Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
* 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
* Nokia Corporation - Qt implementation
*******************************************************************************/
package org.eclipse.swt.widgets;
import org.eclipse.ercp.swt.mobile.Command;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.internal.SWTEventListener;
import org.eclipse.swt.internal.qt.OS;
import org.eclipse.swt.internal.qt.PackageProxy;
import org.eclipse.swt.internal.qt.QObjectDeleteWrapper;
import org.eclipse.swt.internal.qt.WidgetConstant;
import org.eclipse.swt.internal.qt.WidgetState;
/**
* This class is the abstract superclass of all user interface objects.
* Widgets are created, disposed and issue notification to listeners
* when events occur which affect them.
* <dl>
* <dt><b>Styles:</b></dt>
* <dd>(none)</dd>
* <dt><b>Events:</b></dt>
* <dd>Dispose</dd>
* </dl>
* <p>
* IMPORTANT: This class is intended to be subclassed <em>only</em>
* within the SWT implementation. However, it has not been marked
* final to allow those outside of the SWT development team to implement
* patched versions of the class in order to get around specific
* limitations in advance of when those limitations can be addressed
* by the team. Any class built using subclassing to access the internals
* of this class will likely fail to compile or run between releases and
* may be strongly platform specific. Subclassing should not be attempted
* without an intimate and detailed understanding of the workings of the
* hierarchy. No support is provided for user-written classes which are
* implemented as subclasses of this class.
* </p>
*
* @see #checkSubclass
*/
public abstract class Widget {
int handle, topHandle;
int style, state;
Display display;
EventTable eventTable;
Object data;
PackageProxy packageProxy;
static final int checkBits (int style, int int0, int int1, int int2, int int3, int int4, int int5) {
int mask = int0 | int1 | int2 | int3 | int4 | int5;
if ((style & mask) == 0) style |= int0;
if ((style & int0) != 0) style = (style & ~mask) | int0;
if ((style & int1) != 0) style = (style & ~mask) | int1;
if ((style & int2) != 0) style = (style & ~mask) | int2;
if ((style & int3) != 0) style = (style & ~mask) | int3;
if ((style & int4) != 0) style = (style & ~mask) | int4;
if ((style & int5) != 0) style = (style & ~mask) | int5;
return style;
}
/**
* Prevents uninitialized instances from being created outside the package.
*/
Widget () {}
/**
* Constructs a new instance of this class given its parent
* and a style value describing its behavior and appearance.
* <p>
* The style value is either one of the style constants defined in
* class <code>SWT</code> which is applicable to instances of this
* class, or must be built by <em>bitwise OR</em>'ing together
* (that is, using the <code>int</code> "|" operator) two or more
* of those <code>SWT</code> style constants. The class description
* lists the style constants that are applicable to the class.
* Style bits are also inherited from superclasses.
* </p>
*
* @param parent a widget which will be the parent of the new instance (cannot be null)
* @param style the style of widget to construct
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
* <li>ERROR_INVALID_ARGUMENT - if the parent is disposed</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
* <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
* </ul>
*
* @see SWT
* @see #checkSubclass
* @see #getStyle
*/
public Widget (Widget parent, int style) {
this(parent, style, 0, null, false);
}
/**
* <p>
* <b>IMPORTANT:</b> This constructor is <em>not</em> part of the SWT
* public API. It should never be referenced from application code.
* </p>
*/
protected Widget (Widget parent, int style, int extraStyle, Object packageProxy,
boolean isExtended) {
checkSubclass ();
checkParent (parent);
this.style = style;
if(isExtended) state |= WidgetState.IS_EXTENDED;
display = parent.display;
setPackageProxy(packageProxy);
}
/**
* Adds the listener to the collection of listeners who will
* be notified when the widget is disposed. When the widget is
* disposed, the listener is notified by sending it the
* <code>widgetDisposed()</code> message.
*
* @param listener the listener which should be notified when the receiver is disposed
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*
* @see DisposeListener
* @see #removeDisposeListener
*/
public void addDisposeListener (DisposeListener listener) {
checkWidget ();
if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
TypedListener typedListener = new TypedListener (listener);
addListener (SWT.Dispose, typedListener);
}
/**
* Adds the listener to the collection of listeners who will
* be notified when an event of the given type occurs. When the
* event does occur in the widget, the listener is notified by
* sending it the <code>handleEvent()</code> message. 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 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_WIDGET_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*
* @see Listener
* @see SWT
* @see #removeListener(int, Listener)
* @see #notifyListeners
*/
public void addListener (int eventType, Listener listener) {
checkWidget ();
if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
_addListener (eventType, listener);
}
void _addListener (int eventType, Listener listener) {
if (eventTable == null) eventTable = new EventTable ();
eventTable.hook (eventType, listener);
}
final void addWidget (int handle) {
Display.addWidget(handle, this);
}
final void checkOrientation (Widget parent) {
style &= ~SWT.MIRRORED;
// If orientation explicitly specified then always use that
if ((style & (SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT)) == 0) {
if (parent != null) {
// Inherit the flag from parent
if ((parent.style & SWT.LEFT_TO_RIGHT) != 0) style |= SWT.LEFT_TO_RIGHT;
if ((parent.style & SWT.RIGHT_TO_LEFT) != 0) style |= SWT.RIGHT_TO_LEFT;
// If the parent follows the system language direction this widget
// does too (unless the user explicitly specified the direction).
state |= (parent.state & WidgetState.FOLLOWS_SYSLANG_DIRECTION);
} else {
// Use the default determined by a system property.
// Setting RIGHT_TO_LEFT flag triggers the coordinate mirroring.
if(Display.defaultOrientation != SWT.LEFT_TO_RIGHT) {
style |= Display.defaultOrientation;
}
// If there's no parent this widget follows the system language
// direction if that's the default behavior configured by a system
// property.
if(Display.defaultOrientationIsSysLangDirection)
state |= WidgetState.FOLLOWS_SYSLANG_DIRECTION;
}
}
style = checkBits (style, SWT.LEFT_TO_RIGHT, SWT.RIGHT_TO_LEFT, 0, 0, 0, 0);
}
/*
* Throws an exception if the specified widget can not be
* used as a parent for the receiver.
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
* <li>ERROR_INVALID_ARGUMENT - if the parent is disposed</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
* </ul>
*/
final void checkParent (Widget parent) {
if (parent == null) error (SWT.ERROR_NULL_ARGUMENT);
if (parent.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT);
parent.checkWidget ();
}
/**
* Checks that this class can be subclassed.
* <p>
* The SWT class library is intended to be subclassed
* only at specific, controlled points (most notably,
* <code>Composite</code> and <code>Canvas</code> when
* implementing new widgets). This method enforces this
* rule unless it is overridden.
* </p><p>
* <em>IMPORTANT:</em> By providing an implementation of this
* method that allows a subclass of a class which does not
* normally allow subclassing to be created, the implementer
* agrees to be fully responsible for the fact that any such
* subclass will likely fail between SWT releases and will be
* strongly platform specific. No support is provided for
* user-written classes which are implemented in this fashion.
* </p><p>
* The ability to subclass outside of the allowed SWT classes
* is intended purely to enable those not on the SWT development
* team to implement patches in order to get around specific
* limitations in advance of when those limitations can be
* addressed by the team. Subclassing should not be attempted
* without an intimate and detailed understanding of the hierarchy.
* </p>
*
* @exception SWTException <ul>
* <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
* </ul>
*/
protected void checkSubclass () {
if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS);
}
/**
* Throws an <code>SWTException</code> if the receiver can not
* be accessed by the caller. This may include both checks on
* the state of the receiver and more generally on the entire
* execution context. This method <em>should</em> be called by
* widget implementors to enforce the standard SWT invariants.
* <p>
* Currently, it is an error to invoke any method (other than
* <code>isDisposed()</code>) on a widget that has had its
* <code>dispose()</code> method called. It is also an error
* to call widget methods from any thread that is different
* from the thread that created the widget.
* </p><p>
* In future releases of SWT, there may be more or fewer error
* checks and exceptions may be thrown for different reasons.
* </p>
*
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*/
protected void checkWidget () {
Display display = this.display;
if (display == null) error (SWT.ERROR_WIDGET_DISPOSED);
if (display.thread != Thread.currentThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
if ((state & WidgetState.DISPOSED) != 0) error (SWT.ERROR_WIDGET_DISPOSED);
}
/*
* _pp means that some widgets want to "override" this method in another
* package. If this is such a widget then there is a 'package proxy' (pp) that
* must be called instead of the implementation in this package.
*/
void createHandle_pp (int index) {
}
void createWidget (int index) {
if(packageProxy != null) {
packageProxy.createHandle(index);
} else {
createHandle_pp (index);
}
// If subclasses didn't specify topHandle then it's assumed that there's
// only one QWidget. I.e. handle is the root widget.
if(topHandle == 0) topHandle = handle;
if(packageProxy != null) {
packageProxy.hookEvents();
} else {
hookEvents_pp();
}
if(packageProxy != null) {
packageProxy.register();
} else {
register_pp();
}
}
void deregister_pp () {
if (handle != 0) Display.removeWidget (handle);
}
void destroyWidget () {
int _topHandle = topHandle;
if(packageProxy != null) {
packageProxy.releaseHandle();
} else {
releaseHandle_pp ();
}
if (_topHandle != 0 && (state & WidgetState.HANDLE) != 0) {
QObjectDeleteWrapper.deleteSafely( _topHandle );
}
}
/**
* Disposes of the operating system resources associated with
* the receiver and all its descendants. After this method has
* been invoked, the receiver and all descendants will answer
* <code>true</code> when sent the message <code>isDisposed()</code>.
* Any internal connections between the widgets in the tree will
* have been removed to facilitate garbage collection.
* <p>
* NOTE: This method is not called recursively on the descendants
* of the receiver. This means that, widget implementers can not
* detect when a widget is being disposed of by re-implementing
* this method, but should instead listen for the <code>Dispose</code>
* event.
* </p>
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*
* @see #addDisposeListener
* @see #removeDisposeListener
* @see #checkWidget
*/
public void dispose () {
if (isDisposed ()) return;
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
release (true);
}
final void error (int code) {
SWT.error (code);
}
final boolean filters (int eventType) {
return Display.filters (eventType);
}
static final Command[] getCommands(Control control) {
return control.getCommands();
}
/**
* Returns the application defined widget data associated
* with the receiver, or null if it has not been set. The
* <em>widget data</em> is a single, unnamed field that is
* stored with every widget.
* <p>
* Applications may put arbitrary objects in this field. If
* the object stored in the widget data needs to be notified
* when the widget is disposed of, it is the application's
* responsibility to hook the Dispose event on the widget and
* do so.
* </p>
*
* @return the widget data
*
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - when the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - when called from the wrong thread</li>
* </ul>
*
* @see #setData(Object)
*/
public Object getData () {
checkWidget();
return (state & WidgetState.KEYED_DATA) != 0 ? ((Object []) data) [0] : data;
}
/**
* 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 widget is disposed
* of, it is the application's responsibility to hook the
* Dispose event on the widget and do 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_WIDGET_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*
* @see #setData(String, Object)
*/
public Object getData (String key) {
checkWidget();
if (key == null) error (SWT.ERROR_NULL_ARGUMENT);
if ((state & WidgetState.KEYED_DATA) != 0) {
Object [] table = (Object []) data;
for (int i=1; i<table.length; i+=2) {
if (key.equals (table [i])) return table [i+1];
}
}
return null;
}
/**
* Returns the <code>Display</code> that is associated with
* the receiver.
* <p>
* A widget's display is either provided when it is created
* (for example, top level <code>Shell</code>s) or is the
* same as its parent's display.
* </p>
*
* @return the receiver's display
*
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
* </ul>
*/
public Display getDisplay () {
Display display = this.display;
if (display == null) error (SWT.ERROR_WIDGET_DISPOSED);
return display;
}
String getName () {
String string = getClass ().getName ();
int index = string.length ();
while ((--index > 0) && (string.charAt (index) != '.')) {}
return string.substring (index + 1, string.length ());
}
String getNameText () {
return "";
}
String getPhoneNumber_pp() {
if (packageProxy != null) {
return packageProxy.getPhoneNumber();
}
return null;
}
/**
* Returns the receiver's style information.
* <p>
* Note that the value which is returned by this method <em>may
* not match</em> the value which was provided to the constructor
* when the receiver was created. This can occur when the underlying
* operating system does not support a particular combination of
* requested styles. For example, if the platform widget used to
* implement a particular SWT widget always has scroll bars, the
* result of calling this method would always have the
* <code>SWT.H_SCROLL</code> and <code>SWT.V_SCROLL</code> bits set.
* </p>
*
* @return the style bits
*
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*/
public int getStyle () {
checkWidget ();
return style;
}
// Experimental support for StyleSheets
public String getStyleSheet(){
checkWidget();
return OS.QWidget_styleSheet(handle);
}
void hookEvents_pp () {
}
/*
* Returns <code>true</code> if the specified eventType is
* hooked, and <code>false</code> otherwise. Implementations
* of SWT can avoid creating objects and sending events
* when an event happens in the operating system but
* there are no listeners hooked for the event.
*
* @param eventType the event to be checked
*
* @return <code>true</code> when the eventType is hooked and <code>false</code> otherwise
*
* @see #isListening
*/
final boolean hooks (int eventType) {
if (eventTable == null) return false;
return eventTable.hooks (eventType);
}
boolean isInternalWidget_pp() {
return (state & WidgetState.INTERNAL) != 0;
}
/**
* Returns <code>true</code> if the widget has been disposed,
* and <code>false</code> otherwise.
* <p>
* This method gets the dispose state for the widget.
* When a widget has been disposed, it is an error to
* invoke any other method using the widget.
* </p>
*
* @return <code>true</code> when the widget is disposed and <code>false</code> otherwise
*/
public boolean isDisposed () {
return (state & WidgetState.DISPOSED) != 0;
}
/**
* Returns <code>true</code> if there are any listeners
* for the specified event type associated with the receiver,
* and <code>false</code> otherwise. The event type is one of
* the event constants defined in class <code>SWT</code>.
*
* @param eventType the type of event
* @return true if the event is hooked
*
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*
* @see SWT
*/
public boolean isListening (int eventType) {
checkWidget ();
return hooks (eventType);
}
/*
* Checks if key or character code corresponds to selection key
* @param key Key code
* @param character Character code
* @return true if key/character is a selection key, false otherwise
*/
final boolean isSelectionKey(int key, int character) {
if(OS.windowServer == OS.WS_X11) {
if (character == ' ') {
return true;
}
} else if (OS.windowServer == OS.WS_SYMBIAN_S60) {
if (key == OS.QT_KEY_RETURN || character == -5) {
return true;
}
}
return false;
}
final boolean isValidSubclass() {
return Display.isValidClass(getClass());
}
final boolean isValidThread () {
return getDisplay ().isValidThread ();
}
final Event makeKeyEvent(int key, int modifier, int character, int nativeScanCode) {
Event event = new Event ();
switch (key) {
case OS.QT_KEY_CONTROL: //intentional fall through
case OS.QT_KEY_ALT:
case OS.QT_KEY_META:
case OS.QT_KEY_UP:
case OS.QT_KEY_DOWN:
case OS.QT_KEY_LEFT:
case OS.QT_KEY_RIGHT:
event.character = 0;
break;
case OS.QT_KEY_ENTER : //intentional fall through
case OS.QT_KEY_RETURN : event.character = SWT.CR; break;
case OS.QT_KEY_BACKSPACE: event.character = SWT.BS; break;
case OS.QT_KEY_DELETE: event.character = SWT.DEL; break;
case OS.QT_KEY_ESCAPE: event.character = SWT.ESC; break;
case OS.QT_KEY_TAB: event.character = SWT.TAB; break;
case OS.QT_KEY_SHIFT: event.character = (char)SWT.SHIFT; break;
default:
event.character = (char)character; break;
}
boolean keypad = (modifier & OS.QT_KEYPADMODIFIER) != 0 ;
event.keyCode = Display.translateKey( key, keypad );
if ( event.keyCode == 0 ){// keyCode defaults to unicode value of character.
event.keyCode = character;
}
if( (modifier & OS.QT_NOMODIFIER) == 0 ){
event.stateMask = Display.translateModifiers(modifier);
}
if (keypad) {
event.keyLocation = SWT.KEYPAD;
}
event.keyLocation |= Display.translateKeyLocation(nativeScanCode);
return event;
}
/**
* Notifies all of the receiver's listeners for events
* of the given type that one such event has occurred by
* invoking their <code>handleEvent()</code> method. The
* event type is one of the event constants defined in class
* <code>SWT</code>.
*
* @param eventType the type of event which has occurred
* @param event the event data
*
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*
* @see SWT
* @see #addListener
* @see #removeListener(int, Listener)
*/
public void notifyListeners (int eventType, Event event) {
checkWidget();
if (event == null) event = new Event ();
sendEvent (eventType, event);
}
final void postEvent (int eventType) {
sendEvent (eventType, null, false);
}
final void postEvent (int eventType, Event event) {
sendEvent (eventType, event, false);
}
/*
* Qt Events
*/
boolean qt_event_close() {
return false;
}
boolean qt_event_contextmenu(int x, int y, int reason) {
return false;
}
boolean qt_event_focusIn( int reason ) {
return false;
}
boolean qt_event_focusOut( int reason ) {
return false;
}
boolean qt_event_keypress_pp( int widgetHandle, int key, int modifier, int character, int nativeScanCode ) {
if (((state & WidgetState.NO_KEY_PROPAGATE) != 0) && (widgetHandle != handle)) {
return true;
}
return sendKeyEvent( SWT.KeyDown, key, modifier, character, nativeScanCode );
}
boolean qt_event_keyrelease_pp( int widgetHandle, int key, int modifier, int character, int nativeScanCode ) {
if (((state & WidgetState.NO_KEY_PROPAGATE) != 0) && (widgetHandle != handle)) {
return true;
}
return sendKeyEvent( SWT.KeyUp, key, modifier, character, nativeScanCode );
}
boolean qt_event_mouseButtonDblClick_pp( int widgetHandle, int button, int x, int y, int state, int buttons ) {
return false;
}
boolean qt_event_mouseButtonPress_pp (int widgetHandle, int button, int x, int y, int state, int buttons) {
return false;
}
boolean qt_event_mouseButtonRelease_pp ( int widgetHandle, int button, int x, int y, int state, int buttons ) {
return false;
}
boolean qt_event_mouseMove ( int widgetHandle, int button, int x, int y, int state, int buttons ) {
return false;
}
boolean qt_event_paint( int widgetHandle, int x, int y, int width, int height, int regionHandle ) {
return false;
}
boolean qt_event_shortcut(int key, int modifier, int character) {
return false;
}
boolean qt_event_windowActivate(int widgetHandle) {
return false;
}
boolean qt_event_windowDeactivate(int widgetHandle) {
return false;
}
boolean qt_event_windowStateChange(int widgetHandle, int oldState) {
return false;
}
/*
* Qt Signals
*/
void qt_signal_aboutToHide() {
}
void qt_signal_aboutToShow() {
}
void qt_signal_clicked() {
}
void qt_signal_qapplication_focusChanged_pp(int old, int now) {
}
void qt_signal_current_tab_changed_pp(int index) {
}
void qt_signal_dateedit_dateTimeChanged_pp() {
}
void qt_signal_hover() {
}
void qt_signal_linkActivated_pp(String link) {
}
void qt_signal_list_itemActivated_pp(int selectionHandle) {
}
void qt_signal_list_itemDoubleClicked_pp(int selectionHandle) {
}
void qt_signal_list_itemSelectionChanged_pp() {
}
void qt_signal_pressed() {
}
void qt_signal_released() {
}
void qt_signal_requestCompleted_pp(int value){
}
void qt_signal_return_pressed_pp() {
}
void qt_signal_selectionChanged_pp(int selectionHandle, int deSelectionHandle) {
}
void qt_signal_slider_action_triggered(int action) {
}
void qt_signal_slider_changed(int value) {
}
void qt_signal_slider_released(){
}
void qt_signal_table_cellActivated(int row, int column) {
}
void qt_signal_table_cellChanged(int row, int column) {
}
void qt_signal_table_currentCellChanged(int currentRow, int currentColumn, int previousRow, int previousColumn) {
}
void qt_signal_table_itemSelectionChanged() {
}
void qt_signal_text_changed_pp(String text) {
}
void qt_signal_text_cursorPositionChanged_pp(int oldPos, int newPos) {
}
void qt_signal_text_selectionChanged_pp() {
}
void qt_signal_tray_activated(int arg1) {
}
void qt_signal_tree_itemActivated(int selectionHandle, int column) {
}
void qt_signal_tree_itemCollapsed(int selectionHandle) {
}
void qt_signal_tree_itemExpanded(int selectionHandle) {
}
void qt_signal_tree_itemSelectionChanged() {
}
void qt_signal_triggered_pp(boolean checked) {
}
void qt_signal_abstractitemview_activated_pp(int row, int column) {
}
/*
* QtSwt Events
*/
void qt_swt_event_bufferFlush() {
}
void qt_swt_event_focusWasGained() {
}
void qt_swt_event_focusWasLost() {
}
void qt_swt_event_widgetMoved(int widgetHandle) {
}
void qt_swt_event_widgetPainted(int widgetHandle, int x, int y, int width, int height, int regionHandle) {
}
void qt_swt_event_widgetResized_pp(int widgetHandle, int oldWidth, int oldHeight, int width, int height, boolean sendResizeEvent) {
}
void register_pp () {
if (handle == 0) return;
if ((state & WidgetState.HANDLE) != 0) Display.addWidget (handle, this);
}
void release (boolean destroy) {
if ((state & WidgetState.DISPOSE_SENT) == 0) {
state |= WidgetState.DISPOSE_SENT;
sendEvent (SWT.Dispose);
}
if ((state & WidgetState.DISPOSED) == 0) {
if(packageProxy != null) {
packageProxy.releaseChildren(destroy);
} else {
releaseChildren_pp(destroy);
}
}
if ((state & WidgetState.RELEASED) == 0) {
state |= WidgetState.RELEASED;
if (destroy) {
if(packageProxy != null) {
packageProxy.releaseParent();
packageProxy.releaseWidget();
} else {
releaseParent_pp();
releaseWidget_pp();
}
destroyWidget ();
} else {
if(packageProxy != null) {
packageProxy.releaseWidget ();
packageProxy.releaseHandle();
} else {
releaseWidget_pp ();
releaseHandle_pp ();
}
}
}
}
void releaseChildren_pp (boolean destroy) {
}
void releaseHandle_pp () {
handle = topHandle = 0;
state |= WidgetState.DISPOSED;
display = null;
}
void releaseParent_pp () {
/* Do nothing */
}
void releaseWidget_pp () {
if(packageProxy != null) {
packageProxy.deregister();
} else {
deregister_pp();
}
eventTable = null;
data = null;
}
/**
* Removes the listener from the collection of listeners who will
* be notified when the widget is disposed.
*
* @param listener the listener which should no longer be notified when the receiver is disposed
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*
* @see DisposeListener
* @see #addDisposeListener
*/
public void removeDisposeListener (DisposeListener listener) {
checkWidget ();
if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
if (eventTable == null) return;
eventTable.unhook (SWT.Dispose, listener);
}
/**
* 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 when the event occurs
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*
* @see Listener
* @see SWT
* @see #addListener
* @see #notifyListeners
*/
public void removeListener (int eventType, Listener handler) {
checkWidget ();
if (handler == null) error (SWT.ERROR_NULL_ARGUMENT);
if (eventTable == null) return;
eventTable.unhook (eventType, handler);
}
/**
* Removes the listener from the collection of listeners who will
* be notified when an event of the given type occurs.
* <p>
* <b>IMPORTANT:</b> This method is <em>not</em> part of the SWT
* public API. It is marked public only so that it can be shared
* within the packages provided by SWT. It should never be
* referenced from application code.
* </p>
*
* @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_WIDGET_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*
* @see Listener
* @see #addListener
*/
protected void removeListener (int eventType, SWTEventListener handler) {
checkWidget ();
if (handler == null) error (SWT.ERROR_NULL_ARGUMENT);
if (eventTable == null) return;
eventTable.unhook (eventType, handler);
}
final Widget removeWidget (int handle) {
return Display.removeWidget(handle);
}
final void sendEvent (Event event) {
Display display = event.display;
if (!Display.filterEvent (event)) {
if (eventTable != null) eventTable.sendEvent (event);
}
}
final void sendEvent (int eventType) {
sendEvent (eventType, null, true);
}
final void sendEvent (int eventType, Event event) {
sendEvent (eventType, event, true);
}
final void sendEvent (int eventType, Event event, boolean send) {
if (eventTable == null && !Display.filters (eventType)) {
return;
}
if (event == null) event = new Event ();
event.type = eventType;
event.display = display;
event.widget = this;
if (event.time == 0) {
event.time = Display.getLastEventTime ();
}
if (send) {
sendEvent (event);
} else {
Display.postEvent (event);
}
}
final boolean sendKeyEvent ( int type, int key, int modifier, int character, int nativeScanCode ) {
Event event = makeKeyEvent(key, modifier, character, nativeScanCode);
sendEvent (type, event);
if (isDisposed () ) return true;
return !event.doit;
}
/**
* Sets the application defined widget data associated
* with the receiver to be the argument. The <em>widget
* data</em> is a single, unnamed field that is stored
* with every widget.
* <p>
* Applications may put arbitrary objects in this field. If
* the object stored in the widget data needs to be notified
* when the widget is disposed of, it is the application's
* responsibility to hook the Dispose event on the widget and
* do so.
* </p>
*
* @param data the widget data
*
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - when the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - when called from the wrong thread</li>
* </ul>
*
* @see #getData()
*/
public void setData (Object data) {
checkWidget();
if ((state & WidgetState.KEYED_DATA) != 0) {
((Object []) this.data) [0] = data;
} else {
this.data = data;
}
}
/**
* Sets the application defined property of the receiver
* with the specified name to the given value.
* <p>
* Applications may associate arbitrary objects with the
* receiver in this fashion. If the objects stored in the
* properties need to be notified when the widget is disposed
* of, it is the application's responsibility to hook the
* Dispose event on the widget and do 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_WIDGET_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*
* @see #getData(String)
*/
public void setData (String key, Object value) {
checkWidget();
if (key == null) error (SWT.ERROR_NULL_ARGUMENT);
if (key.equals (WidgetConstant.SET_CANVAS_STATE_KEY)) {
boolean enabled = ((Boolean)value).booleanValue();
if (enabled) {
this.state |= WidgetState.CANVAS;
}
else {
this.state &= ~WidgetState.CANVAS;
}
return;
}
if (key.equals (WidgetConstant.SET_NO_TRAVERSE_STATE_KEY)) {
boolean enabled = ((Boolean)value).booleanValue();
if (enabled) {
this.state |= WidgetState.NO_TRAVERSE;
}
else {
this.state &= ~WidgetState.NO_TRAVERSE;
}
return;
}
if (key.equals (WidgetConstant.SET_NO_KEY_PROPAGATE_STATE_KEY)) {
boolean enabled = ((Boolean)value).booleanValue();
if (enabled) {
this.state |= WidgetState.NO_KEY_PROPAGATE;
}
else {
this.state &= ~WidgetState.NO_KEY_PROPAGATE;
}
return;
}
if (key.equals (WidgetConstant.SET_NO_MOUSE_PROPAGATE_STATE_KEY)) {
boolean enabled = ((Boolean)value).booleanValue();
if (enabled) {
this.state |= WidgetState.NO_MOUSE_PROPAGATE;
}
else {
this.state &= ~WidgetState.NO_MOUSE_PROPAGATE;
}
return;
}
if (key.equals (WidgetConstant.SET_EMBEDDED_SCROLLBARS_STATE_KEY)) {
boolean enabled = ((Boolean)value).booleanValue();
if (enabled) {
this.state |= WidgetState.EMBEDDED_SCROLLBARS;
}
else {
this.state &= ~WidgetState.EMBEDDED_SCROLLBARS;
}
return;
}
if(key.equals(WidgetConstant.CSS_ID)){
OS.QObject_setObjectName(handle,(String)value);
// Do not return here and let Widget store the key
// value.
}
int index = 1;
Object [] table = null;
if ((state & WidgetState.KEYED_DATA) != 0) {
table = (Object []) data;
while (index < table.length) {
if (key.equals (table [index])) break;
index += 2;
}
}
if (value != null) {
if ((state & WidgetState.KEYED_DATA) != 0) {
if (index == table.length) {
Object [] newTable = new Object [table.length + 2];
System.arraycopy (table, 0, newTable, 0, table.length);
data = table = newTable;
}
} else {
table = new Object [3];
table [0] = data;
data = table;
state |= WidgetState.KEYED_DATA;
}
table [index] = key;
table [index + 1] = value;
} else {
if ((state & WidgetState.KEYED_DATA) != 0) {
if (index != table.length) {
int length = table.length - 2;
if (length == 1) {
data = table [0];
state &= ~WidgetState.KEYED_DATA;
} else {
Object [] newTable = new Object [length];
System.arraycopy (table, 0, newTable, 0, index);
System.arraycopy (table, index + 2, newTable, index, length - index);
data = newTable;
}
}
}
}
}
void setWidgetInternalOnly_pp(){
state|=WidgetState.INTERNAL;
}
final void setPackageProxy(Object packageProxy) {
// If the subclass is in another package then it provides a proxy object
// which implements the methods that "override" the package private
// implementations from this package. We must call the proxy object
// implementations if they are provided.
if(packageProxy != null) {
PackageProxy proxyObject = (PackageProxy)packageProxy;
proxyObject.setWidget(this);
this.packageProxy = proxyObject;
}
}
/**
* Returns a string containing a concise, human-readable
* description of the receiver.
*
* @return a string representation of the receiver
*/
public String toString () {
String string = "*Disposed*";
if (!isDisposed ()) {
string = "*Wrong Thread*";
if (isValidThread ()) string = getNameText ();
}
return getName () + " {" + string + "}";
}
}