diff options
Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/motif/org/eclipse/swt/widgets/Widget.java')
| -rwxr-xr-x | bundles/org.eclipse.swt/Eclipse SWT/motif/org/eclipse/swt/widgets/Widget.java | 921 |
1 files changed, 0 insertions, 921 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/motif/org/eclipse/swt/widgets/Widget.java b/bundles/org.eclipse.swt/Eclipse SWT/motif/org/eclipse/swt/widgets/Widget.java deleted file mode 100755 index 187774b1d5..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/motif/org/eclipse/swt/widgets/Widget.java +++ /dev/null @@ -1,921 +0,0 @@ -package org.eclipse.swt.widgets;
-
-/*
- * (c) Copyright IBM Corp. 2000, 2001.
- * All Rights Reserved
- */
-
-import org.eclipse.swt.internal.*;
-import org.eclipse.swt.internal.motif.*;
-import org.eclipse.swt.*;
-import org.eclipse.swt.graphics.*;
-import org.eclipse.swt.events.*;
-
-/**
- * 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 {
- public int handle;
- int style, state;
- EventTable eventTable;
- Object data;
- String [] keys;
- Object [] values;
-
- /* Global state flags */
-// static final int AUTOMATIC = 0x00000001;
-// static final int ACTIVE = 0x00000002;
-// static final int AUTOGRAB = 0x00000004;
-// static final int MULTIEXPOSE = 0x00000008;
-// static final int RESIZEREDRAW = 0x00000010;
-// static final int WRAP = 0x00000020;
-// static final int DISABLED = 0x00000040;
-// static final int HIDDEN = 0x00000080;
-// static final int FOREGROUND = 0x00000100;
-// static final int BACKGROUND = 0x00000200;
- static final int DISPOSED = 0x00000400;
- static final int HANDLE = 0x00000800;
- static final int CANVAS = 0x00001000;
-
- static final int DEFAULT_WIDTH = 64;
- static final int DEFAULT_HEIGHT = 64;
-
- /* Global widget variables */
- static final char Mnemonic = '&';
-
- /* DBCS flags */
- static final boolean IsDBLocale;
- static {
- IsDBLocale = OS.MB_CUR_MAX () != 1;
- }
-Widget () {
- /* Do nothing */
-}
-/**
- * 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
- * for all SWT widget classes should include a comment which
- * describes the style constants which are applicable to the class.
- * </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>
- * </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) {
- checkSubclass ();
- checkParent (parent);
- this.style = style;
-}
-/**
- * Adds the listener to the collection of listeners who will
- * be notifed 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.
- *
- * @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 #removeListener
- */
-public void addListener (int eventType, Listener handler) {
- checkWidget();
- if (handler == null) error (SWT.ERROR_NULL_ARGUMENT);
- if (eventTable == null) eventTable = new EventTable ();
- eventTable.hook (eventType, handler);
-}
-/**
- * Adds the listener to the collection of listeners who will
- * be notifed 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);
-}
-static 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;
-}
-void checkParent (Widget parent) {
- if (parent == null) error (SWT.ERROR_NULL_ARGUMENT);
- if (!parent.isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
- if (parent.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT);
-}
-/**
- * Checks that this class can be subclassed.
- * <p>
- * IMPORTANT: By providing an implementation of this method that
- * allows subclassing in a subclass of this class, you agree to
- * be fully responsible for the fact that any such subclass will
- * likely fail between releases and will be strongly platform
- * specific. No support is provided for classes which are implemented
- * as subclasses of this class. The use of subclassing is intended
- * purely to enable those outside of the development team to implement
- * a patched version of the class in an emergency. Subclassing should
- * not be attempted without an intimate and detailed understanding of
- * the hierarchy.
- *
- * @exception SWTError <ul>
- * <li>ERROR_ILLEGAL_SUBCLASS when called</li>
- * </ul>
- */
-protected void checkSubclass () {
- if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS);
-}
-/**
-* Checks access to a widget.
-* <p>
-* Throws an exception when access to the widget
-* is denied.
-*
-* It is an error to call a method on a widget that
-* has been disposed or to call a method on a widget
-* from a thread that is different from the thread
-* that created the widget. There may be more or
-* less error checks in future or different versions
-* of SWT may issue different errors.
-*
-* This method is intended to be called by widget
-* implementors to enforce the standard SWT error
-* checking prologue in API methods.
-*
-* @exception SWTError(ERROR_THREAD_INVALID_ACCESS)
-* when called from the wrong thread
-* @exception SWTError(ERROR_WIDGET_DISPOSED)
-* when the widget has been disposed
-*/
-protected void checkWidget () {
- if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
- if (isDisposed ()) error (SWT.ERROR_WIDGET_DISPOSED);
-}
-void createHandle (int index) {
- /* Do nothing */
-}
-void createWidget (int index) {
- createHandle (index);
- hookEvents ();
- register ();
- manageChildren ();
-}
-void deregister () {
- if (handle == 0) return;
- WidgetTable.remove (handle);
-}
-void destroyWidget () {
- int topHandle = topHandle ();
- releaseHandle ();
- if (topHandle != 0) {
- OS.XtDestroyWidget (topHandle);
- }
-}
-/**
- * Disposes of the operating system resources associated with
- * the receiver and all its descendents. After this method has
- * been invoked, the receiver and all descendents 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 descendents
- * 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 () {
- /*
- * Note: It is valid to attempt to dispose a widget
- * more than once. If this happens, fail silently.
- */
- if (isDisposed()) return;
- if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
- releaseChild ();
- releaseWidget ();
- destroyWidget ();
-}
-void enableHandle (boolean enabled, int widgetHandle) {
- int [] argList = {OS.XmNsensitive, enabled ? 1 : 0};
- OS.XtSetValues (widgetHandle, argList, argList.length / 2);
-}
-void error (int code) {
- SWT.error(code);
-}
-/**
- * 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
- */
-public Object getData () {
- checkWidget();
- return 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
- */
-public Object getData (String key) {
- checkWidget();
- if (key == null) error (SWT.ERROR_NULL_ARGUMENT);
- if (keys == null) return null;
- for (int i=0; i<keys.length; i++) {
- if (keys [i].equals (key)) return values [i];
- }
- return null;
-}
-
-/**
- * Returns the <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>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public abstract Display getDisplay ();
-String getName () {
- String string = getClass ().getName ();
- int index = string.lastIndexOf ('.');
- if (index == -1) return string;
- return string.substring (index + 1, string.length ());
-}
-String getNameText () {
- return "";
-}
-/**
- * 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;
-}
-void hookEvents () {
- /* Do nothing */
-}
-boolean hooks (int eventType) {
- if (eventTable == null) return false;
- return eventTable.hooks (eventType);
-}
-/**
- * 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 () {
- if (handle != 0) return false;
- if ((state & HANDLE) != 0) return true;
- return (state & DISPOSED) != 0;
-}
-/**
- * Return the listening state.
- * <p>
- * Returns true if there is a listener, listening for the eventType.
- * Otherwise, returns false.
- *
- * @param eventType the type of event
- * @return true if the event is hooked
- *
- * @exception SWTError <ul>
- * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
- * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
- * <li>ERROR_NULL_ARGUMENT when the name is null</li>
- * </ul>
- */
-protected boolean isListening (int eventType) {
- checkWidget();
- return hooks (eventType);
-}
-boolean isValidSubclass () {
- return Display.isValidClass (getClass ());
-}
-boolean isValidThread () {
- return getDisplay ().isValidThread ();
-}
-void manageChildren () {
- /* Do nothing */
-}
-char mbcsToWcs (int ch) {
- return mbcsToWcs (ch, null);
-}
-char mbcsToWcs (int ch, String codePage) {
- int key = ch & 0xFFFF;
- if (key <= 0x7F) return (char) 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 (codePage, buffer);
- if (result.length == 0) return 0;
- return result [0];
-}
-/**
- * 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.
- *
- * @param eventType the type of event which has occurred
- * @param event the event data
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the event 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>
- */
-public void notifyListeners (int eventType, Event event) {
- checkWidget();
- if (event == null) error (SWT.ERROR_NULL_ARGUMENT);
- if (eventTable == null) return;
- event.type = eventType;
- event.widget = this;
- eventTable.sendEvent (event);
-}
-void postEvent (int eventType) {
- if (eventTable == null) return;
- postEvent (eventType, new Event ());
-}
-void postEvent (int eventType, Event event) {
- if (eventTable == null) return;
- event.type = eventType;
- event.widget = this;
- Display display = getDisplay ();
- if (event.time == 0) {
- event.time = OS.XtLastTimestampProcessed (display.xDisplay);
- }
- display.postEvent (event);
-}
-int processArm (int callData) {
- return 0;
-}
-int processDispose (int callData) {
- return 0;
-}
-int processDefaultSelection (int callData) {
- return 0;
-}
-int processEvent (int eventNumber, int callData) {
- switch (eventNumber) {
- case SWT.Arm: return processArm (callData);
- case SWT.Dispose: return processDispose (callData);
- case SWT.DefaultSelection: return processDefaultSelection (callData);
- case SWT.FocusIn: return processSetFocus (callData);
- case SWT.Help: return processHelp (callData);
- case SWT.Hide: return processHide (callData);
- case SWT.KeyDown: return processKeyDown (callData);
- case SWT.KeyUp: return processKeyUp (callData);
- case SWT.Modify: return processModify (callData);
- case SWT.MouseDown: return processMouseDown (callData);
- case SWT.MouseEnter: return processMouseEnter (callData);
- case SWT.MouseExit: return processMouseExit (callData);
- case SWT.MouseHover: return processMouseHover (callData);
- case SWT.MouseMove: return processMouseMove (callData);
- case SWT.MouseUp: return processMouseUp (callData);
- case SWT.Paint: return processPaint (callData);
- case SWT.Resize: return processResize (callData);
- case SWT.Show: return processShow (callData);
- case SWT.Selection: return processSelection (callData);
- case SWT.Verify: return processVerify (callData);
- case -1: return processNonMaskable (callData);
- }
- return 0;
-}
-int processHelp (int callData) {
- return 0;
-}
-int processHide (int callData) {
- return 0;
-}
-int processKeyDown (int callData) {
- return 0;
-}
-int processKeyUp (int callData) {
- return 0;
-}
-int processModify (int callData) {
- return 0;
-}
-int processMouseDown (int callData) {
- return 0;
-}
-int processMouseEnter (int callData) {
- return 0;
-}
-int processMouseExit (int callData) {
- return 0;
-}
-int processMouseHover (int id) {
- return 0;
-}
-int processMouseMove (int callData) {
- return 0;
-}
-int processMouseUp (int callData) {
- return 0;
-}
-int processNonMaskable (int callData) {
- return 0;
-}
-int processPaint (int callData) {
- return 0;
-}
-int processResize (int callData) {
- return 0;
-}
-int processSelection (int callData) {
- return 0;
-}
-int processSetFocus (int callData) {
- return 0;
-}
-int processShow (int callData) {
- return 0;
-}
-int processVerify (int callData) {
- return 0;
-}
-void propagateHandle (boolean enabled, int widgetHandle) {
- int xDisplay = OS.XtDisplay (widgetHandle);
- if (xDisplay == 0) return;
- int xWindow = OS.XtWindow (widgetHandle);
- if (xWindow == 0) return;
- /*
- * Get the event mask from the widget. The event mask
- * returned by XtBuildEventMask () includes the masks
- * associated with all callbacks and event handlers
- * that have been hooked on the widget.
- */
- int event_mask = OS.XtBuildEventMask (widgetHandle);
- int do_not_propagate_mask =
- OS.KeyPressMask | OS.KeyReleaseMask | OS.ButtonPressMask |
- OS.ButtonReleaseMask | OS.PointerMotionMask;
- if (!enabled) {
- /*
- * Attempting to propogate EnterWindowMask and LeaveWindowMask
- * causes an X error so these must be specially cleared out from
- * the event mask, not included in the propogate mask.
- */
- event_mask &= ~(do_not_propagate_mask | OS.EnterWindowMask | OS.LeaveWindowMask);
- do_not_propagate_mask = 0;
- }
- XSetWindowAttributes attributes = new XSetWindowAttributes ();
- attributes.event_mask = event_mask;
- attributes.do_not_propagate_mask = do_not_propagate_mask;
- OS.XChangeWindowAttributes (xDisplay, xWindow, OS.CWDontPropagate | OS.CWEventMask, attributes);
- int [] argList = {OS.XmNtraversalOn, enabled ? 1 : 0};
- OS.XtSetValues (widgetHandle, argList, argList.length / 2);
-}
-void redrawHandle (int x, int y, int width, int height, int widgetHandle) {
- int display = OS.XtDisplay (widgetHandle);
- if (display == 0) return;
- int window = OS.XtWindow (widgetHandle);
- if (window == 0) return;
- int [] argList = {OS.XmNborderWidth, 0, OS.XmNborderColor, 0};
- OS.XtGetValues (widgetHandle, argList, argList.length / 2);
- if (argList [1] != 0) {
- /* Force the border to repaint by setting the color */
- OS.XtSetValues (widgetHandle, argList, argList.length / 2);
- }
- OS.XClearArea (display, window, x, y, width, height, true);
-}
-void register () {
- if (handle == 0) return;
- WidgetTable.put (handle, this);
-}
-void releaseChild () {
- /* Do nothing */
-}
-void releaseHandle () {
- handle = 0;
- state |= DISPOSED;
-}
-void releaseWidget () {
- sendEvent (SWT.Dispose);
- deregister ();
- eventTable = null;
- data = null;
- keys = null;
- values = null;
-}
-/**
- * Removes the listener from the collection of listeners who will
- * be notifed when an event of the given type occurs.
- *
- * @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
- */
-public void removeListener (int eventType, Listener handler) {
- checkWidget();
- if (handler == null) error (SWT.ERROR_NULL_ARGUMENT);
- if (eventTable == null) return;
- eventTable.unhook (eventType, handler);
-}
-/**
-* Warning: API under construction.
-*/
-protected void removeListener (int eventType, SWTEventListener 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 notifed 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 #removeDisposeListener
- */
-public void removeDisposeListener (DisposeListener listener) {
- checkWidget();
- if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
- if (eventTable == null) return;
- eventTable.unhook (SWT.Dispose, listener);
-}
-void sendEvent (int eventType) {
- if (eventTable == null) return;
- sendEvent (eventType, new Event ());
-}
-void setInputState (Event event, XInputEvent xEvent) {
- if ((xEvent.state & OS.Mod1Mask) != 0) event.stateMask |= SWT.ALT;
- if ((xEvent.state & OS.ShiftMask) != 0) event.stateMask |= SWT.SHIFT;
- if ((xEvent.state & OS.ControlMask) != 0) event.stateMask |= SWT.CONTROL;
- if ((xEvent.state & OS.Button1Mask) != 0) event.stateMask |= SWT.BUTTON1;
- if ((xEvent.state & OS.Button2Mask) != 0) event.stateMask |= SWT.BUTTON2;
- if ((xEvent.state & OS.Button3Mask) != 0) event.stateMask |= SWT.BUTTON3;
-}
-void setKeyState (Event event, XKeyEvent xEvent) {
- if (xEvent.keycode != 0) {
- byte [] buffer = new byte [1];
- int [] keysym = new int [1];
- OS.XLookupString (xEvent, buffer, buffer.length, keysym, null);
- /*
- * Bug in MOTIF. On Solaris only, XK_F11 and XK_F12 are not
- * translated correctly by XLookupString(). They are mapped
- * to 0x1005FF10 and 0x1005FF11 respectively. The fix is to
- * look for these values explicitly and correct them.
- */
- if (OS.IsSunOS && keysym [0] != 0) {
- switch (keysym [0]) {
- case 0x1005FF10:
- keysym [0] = OS.XK_F11;
- buffer [0] = 0;
- break;
- case 0x1005FF11:
- keysym [0] = OS.XK_F12;
- buffer [0] = 0;
- break;
- }
- /*
- * Bug in MOTIF. On Solaris only, there is garbage in the
- * high 16-bits for Keysyms such as XK_Down. Since Keysyms
- * must be 16-bits to fit into a Character, mask away the
- * high 16-bits on all platforms.
- */
- keysym [0] &= 0xFFFF;
- }
- if (buffer [0] == 0) {
- event.keyCode = Display.translateKey (keysym [0]);
- /*
- * If translateKey () could not find a translation for the keysym
- * then attempt some known keysyms for which we can provide the
- * appropriate character.
- */
- if (event.keyCode == 0) {
- switch (keysym [0]) {
- case OS.XK_ISO_Left_Tab: event.character = '\t'; break;
- /*
- * Bug in Motif. When CTRL+space is pressed XLookupString
- * does not fill buffer [0] with anything, so we fill in
- * the event's character here.
- */
- case OS.XK_space: event.character = ' '; break;
- }
- }
- } else {
- event.character = mbcsToWcs (buffer [0] & 0xFF);
- }
- }
- setInputState (event, xEvent);
-}
-void sendEvent (int eventType, Event event) {
- if (eventTable == null) return;
- event.type = eventType;
- event.widget = this;
- if (event.time == 0) {
- Display display = getDisplay ();
- event.time = OS.XtLastTimestampProcessed (display.xDisplay);
- }
- eventTable.sendEvent (event);
-}
-/**
- * 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>
- */
-public void setData (Object data) {
- checkWidget();
- 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
- */
-public void setData (String key, Object value) {
- checkWidget();
- if (key == null) error (SWT.ERROR_NULL_ARGUMENT);
-
- /* Remove the key/value pair */
- if (value == null) {
- if (keys == null) return;
- int index = 0;
- while (index < keys.length && !keys [index].equals (key)) index++;
- if (index == keys.length) return;
- if (keys.length == 1) {
- keys = null;
- values = null;
- } else {
- String [] newKeys = new String [keys.length - 1];
- Object [] newValues = new Object [values.length - 1];
- System.arraycopy (keys, 0, newKeys, 0, index);
- System.arraycopy (keys, index + 1, newKeys, index, newKeys.length - index);
- System.arraycopy (values, 0, newValues, 0, index);
- System.arraycopy (values, index + 1, newValues, index, newValues.length - index);
- keys = newKeys;
- values = newValues;
- }
- return;
- }
-
- /* Add the key/value pair */
- if (keys == null) {
- keys = new String [] {key};
- values = new Object [] {value};
- return;
- }
- for (int i=0; i<keys.length; i++) {
- if (keys [i].equals (key)) {
- values [i] = value;
- return;
- }
- }
- String [] newKeys = new String [keys.length + 1];
- Object [] newValues = new Object [values.length + 1];
- System.arraycopy (keys, 0, newKeys, 0, keys.length);
- System.arraycopy (values, 0, newValues, 0, values.length);
- newKeys [keys.length] = key;
- newValues [values.length] = value;
- keys = newKeys;
- values = newValues;
-}
-
-/**
- * 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 + "}";
-}
-int topHandle () {
- return handle;
-}
-boolean translateMnemonic (int key, XKeyEvent xEvent) {
- return false;
-}
-boolean translateTraversal (int key, XKeyEvent xEvent) {
- return false;
-}
-int wcsToMbcs (char ch) {
- return wcsToMbcs (ch, null);
-}
-int wcsToMbcs (char ch, String codePage) {
- int key = ch & 0xFFFF;
- if (key <= 0x7F) return ch;
- byte [] buffer = Converter.wcsToMbcs (codePage, 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;
-}
-}
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