|
47
|
1 /*******************************************************************************
|
|
|
2 * Copyright (c) 2000, 2007 IBM Corporation and others.
|
|
|
3 * All rights reserved. This program and the accompanying materials
|
|
|
4 * are made available under the terms of the Eclipse Public License v1.0
|
|
|
5 * which accompanies this distribution, and is available at
|
|
|
6 * http://www.eclipse.org/legal/epl-v10.html
|
|
|
7 *
|
|
|
8 * Contributors:
|
|
|
9 * IBM Corporation - initial API and implementation
|
|
|
10 *******************************************************************************/
|
|
|
11 module dwt.widgets.TrayItem;
|
|
|
12
|
|
|
13 import dwt.SWT;
|
|
|
14 import dwt.widgets.Tray;
|
|
|
15 import dwt.widgets.ToolTip;
|
|
|
16 import dwt.widgets.ImageList;
|
|
|
17 import dwt.widgets.Item;
|
|
|
18 import dwt.events.SelectionListener;
|
|
|
19 import dwt.events.SelectionEvent;
|
|
|
20 import dwt.events.MenuDetectListener;
|
|
|
21 import dwt.widgets.TypedListener;
|
|
|
22 import dwt.graphics.Image;
|
|
|
23 import dwt.graphics.Rectangle;
|
|
|
24 import dwt.graphics.Region;
|
|
|
25 import dwt.internal.gtk.OS;
|
|
|
26
|
|
|
27 import Math = tango.math.Math;
|
|
|
28 import tango.stdc.stringz;
|
|
|
29 import tango.util.Convert;
|
|
|
30
|
|
|
31 /**
|
|
|
32 * Instances of this class represent icons that can be placed on the
|
|
|
33 * system tray or task bar status area.
|
|
|
34 * <p>
|
|
|
35 * <dl>
|
|
|
36 * <dt><b>Styles:</b></dt>
|
|
|
37 * <dd>(none)</dd>
|
|
|
38 * <dt><b>Events:</b></dt>
|
|
|
39 * <dd>DefaultSelection, MenuDetect, Selection</dd>
|
|
|
40 * </dl>
|
|
|
41 * </p><p>
|
|
|
42 * IMPORTANT: This class is <em>not</em> intended to be subclassed.
|
|
|
43 * </p>
|
|
|
44 *
|
|
|
45 * @since 3.0
|
|
|
46 */
|
|
|
47 public class TrayItem : Item {
|
|
|
48 Tray parent;
|
|
|
49 ToolTip toolTip;
|
|
|
50 char[] toolTipText;
|
|
|
51 GtkWidget* imageHandle;
|
|
|
52 GtkWidget* tooltipsHandle;
|
|
|
53 ImageList imageList;
|
|
|
54
|
|
|
55 /**
|
|
|
56 * Constructs a new instance of this class given its parent
|
|
|
57 * (which must be a <code>Tray</code>) and a style value
|
|
|
58 * describing its behavior and appearance. The item is added
|
|
|
59 * to the end of the items maintained by its parent.
|
|
|
60 * <p>
|
|
|
61 * The style value is either one of the style constants defined in
|
|
|
62 * class <code>SWT</code> which is applicable to instances of this
|
|
|
63 * class, or must be built by <em>bitwise OR</em>'ing together
|
|
|
64 * (that is, using the <code>int</code> "|" operator) two or more
|
|
|
65 * of those <code>SWT</code> style constants. The class description
|
|
|
66 * lists the style constants that are applicable to the class.
|
|
|
67 * Style bits are also inherited from superclasses.
|
|
|
68 * </p>
|
|
|
69 *
|
|
|
70 * @param parent a composite control which will be the parent of the new instance (cannot be null)
|
|
|
71 * @param style the style of control to construct
|
|
|
72 *
|
|
|
73 * @exception IllegalArgumentException <ul>
|
|
|
74 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
|
|
|
75 * </ul>
|
|
|
76 * @exception SWTException <ul>
|
|
|
77 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
|
|
|
78 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
|
|
|
79 * </ul>
|
|
|
80 *
|
|
|
81 * @see SWT
|
|
|
82 * @see Widget#checkSubclass
|
|
|
83 * @see Widget#getStyle
|
|
|
84 */
|
|
|
85 public this (Tray parent, int style) {
|
|
|
86 super (parent, style);
|
|
|
87 this.parent = parent;
|
|
|
88 createWidget (parent.getItemCount ());
|
|
|
89 }
|
|
|
90
|
|
|
91 /**
|
|
|
92 * Adds the listener to the collection of listeners who will
|
|
|
93 * be notified when the platform-specific context menu trigger
|
|
|
94 * has occurred, by sending it one of the messages defined in
|
|
|
95 * the <code>MenuDetectListener</code> interface.
|
|
|
96 *
|
|
|
97 * @param listener the listener which should be notified
|
|
|
98 *
|
|
|
99 * @exception IllegalArgumentException <ul>
|
|
|
100 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
|
|
|
101 * </ul>
|
|
|
102 * @exception SWTException <ul>
|
|
|
103 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
|
|
|
104 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
|
|
|
105 * </ul>
|
|
|
106 *
|
|
|
107 * @see MenuDetectListener
|
|
|
108 * @see #removeMenuDetectListener
|
|
|
109 *
|
|
|
110 * @since 3.3
|
|
|
111 */
|
|
|
112 public void addMenuDetectListener (MenuDetectListener listener) {
|
|
|
113 checkWidget ();
|
|
|
114 if (listener is null) error (SWT.ERROR_NULL_ARGUMENT);
|
|
|
115 TypedListener typedListener = new TypedListener (listener);
|
|
|
116 addListener (SWT.MenuDetect, typedListener);
|
|
|
117 }
|
|
|
118
|
|
|
119 /**
|
|
|
120 * Adds the listener to the collection of listeners who will
|
|
|
121 * be notified when the receiver is selected by the user, by sending
|
|
|
122 * it one of the messages defined in the <code>SelectionListener</code>
|
|
|
123 * interface.
|
|
|
124 * <p>
|
|
|
125 * <code>widgetSelected</code> is called when the receiver is selected
|
|
|
126 * <code>widgetDefaultSelected</code> is called when the receiver is double-clicked
|
|
|
127 * </p>
|
|
|
128 *
|
|
|
129 * @param listener the listener which should be notified when the receiver is selected by the user
|
|
|
130 *
|
|
|
131 * @exception IllegalArgumentException <ul>
|
|
|
132 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
|
|
|
133 * </ul>
|
|
|
134 * @exception SWTException <ul>
|
|
|
135 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
|
|
|
136 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
|
|
|
137 * </ul>
|
|
|
138 *
|
|
|
139 * @see SelectionListener
|
|
|
140 * @see #removeSelectionListener
|
|
|
141 * @see SelectionEvent
|
|
|
142 */
|
|
|
143 public void addSelectionListener(SelectionListener listener) {
|
|
|
144 checkWidget ();
|
|
|
145 if (listener is null) error (SWT.ERROR_NULL_ARGUMENT);
|
|
|
146 TypedListener typedListener = new TypedListener (listener);
|
|
|
147 addListener (SWT.Selection, typedListener);
|
|
|
148 addListener (SWT.DefaultSelection, typedListener);
|
|
|
149 }
|
|
|
150
|
|
|
151 protected void checkSubclass () {
|
|
|
152 if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS);
|
|
|
153 }
|
|
|
154
|
|
|
155 void createWidget (int index) {
|
|
|
156 super.createWidget (index);
|
|
|
157 parent.createItem (this, index);
|
|
|
158 }
|
|
|
159
|
|
|
160 void createHandle (int index) {
|
|
|
161 state |= HANDLE;
|
|
|
162 handle = OS.gtk_plug_new (0);
|
|
|
163 if (handle is null) error (SWT.ERROR_NO_HANDLES);
|
|
|
164 imageHandle = OS.gtk_image_new ();
|
|
|
165 if (imageHandle is null) error (SWT.ERROR_NO_HANDLES);
|
|
|
166 OS.gtk_container_add (cast(GtkContainer*)handle, imageHandle);
|
|
|
167 OS.gtk_widget_show (handle);
|
|
|
168 OS.gtk_widget_show (imageHandle);
|
|
|
169 auto id = OS.gtk_plug_get_id (cast(GtkPlug*)handle);
|
|
|
170 int monitor = 0;
|
|
|
171 auto screen = OS.gdk_screen_get_default ();
|
|
|
172 if (screen !is null) {
|
|
|
173 monitor = OS.gdk_screen_get_number (screen);
|
|
|
174 }
|
|
|
175 auto trayAtom = OS.gdk_atom_intern (toStringz("_NET_SYSTEM_TRAY_S" ~ to!(char[])(monitor)), true);
|
|
|
176 auto xTrayAtom = OS.gdk_x11_atom_to_xatom (trayAtom);
|
|
|
177 auto xDisplay = OS.GDK_DISPLAY ();
|
|
|
178 auto trayWindow = OS.XGetSelectionOwner (xDisplay, xTrayAtom);
|
|
|
179 auto messageAtom = OS.gdk_atom_intern (toStringz("_NET_SYSTEM_TRAY_OPCODE"), true);
|
|
|
180 auto xMessageAtom = OS.gdk_x11_atom_to_xatom (messageAtom);
|
|
|
181 XClientMessageEvent* event = cast(XClientMessageEvent*)OS.g_malloc (XClientMessageEvent.sizeof);;
|
|
|
182 event.type = OS.ClientMessage;
|
|
|
183 event.window = trayWindow;
|
|
|
184 event.message_type = xMessageAtom;
|
|
|
185 event.format = 32;
|
|
|
186 event.data.l [0] = OS.GDK_CURRENT_TIME;
|
|
|
187 event.data.l [1] = OS.SYSTEM_TRAY_REQUEST_DOCK;
|
|
|
188 event.data.l [2] = id;
|
|
|
189 OS.XSendEvent (xDisplay, trayWindow, false, OS.NoEventMask, cast(XEvent*) event);
|
|
|
190 OS.g_free (event);
|
|
|
191 }
|
|
|
192
|
|
|
193 void deregister () {
|
|
|
194 super.deregister ();
|
|
|
195 display.removeWidget (imageHandle);
|
|
|
196 }
|
|
|
197
|
|
|
198 void destroyWidget () {
|
|
|
199 parent.destroyItem (this);
|
|
|
200 releaseHandle ();
|
|
|
201 }
|
|
|
202
|
|
|
203 /**
|
|
|
204 * Returns the receiver's parent, which must be a <code>Tray</code>.
|
|
|
205 *
|
|
|
206 * @return the receiver's parent
|
|
|
207 *
|
|
|
208 * @exception SWTException <ul>
|
|
|
209 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
|
|
|
210 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
|
|
|
211 * </ul>
|
|
|
212 *
|
|
|
213 * @since 3.2
|
|
|
214 */
|
|
|
215 public Tray getParent () {
|
|
|
216 checkWidget ();
|
|
|
217 return parent;
|
|
|
218 }
|
|
|
219
|
|
|
220 /**
|
|
|
221 * Returns the receiver's tool tip, or null if it has
|
|
|
222 * not been set.
|
|
|
223 *
|
|
|
224 * @return the receiver's tool tip text
|
|
|
225 *
|
|
|
226 * @exception SWTException <ul>
|
|
|
227 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
|
|
|
228 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
|
|
|
229 * </ul>
|
|
|
230 *
|
|
|
231 * @since 3.2
|
|
|
232 */
|
|
|
233 public ToolTip getToolTip () {
|
|
|
234 checkWidget ();
|
|
|
235 return toolTip;
|
|
|
236 }
|
|
|
237
|
|
|
238 /**
|
|
|
239 * Returns the receiver's tool tip text, or null if it has
|
|
|
240 * not been set.
|
|
|
241 *
|
|
|
242 * @return the receiver's tool tip text
|
|
|
243 *
|
|
|
244 * @exception SWTException <ul>
|
|
|
245 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
|
|
|
246 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
|
|
|
247 * </ul>
|
|
|
248 */
|
|
|
249 public char[] getToolTipText () {
|
|
|
250 checkWidget ();
|
|
|
251 return toolTipText;
|
|
|
252 }
|
|
|
253
|
|
|
254 override int /*long*/ gtk_button_press_event (GtkWidget* widget, GdkEventButton* event) {
|
|
|
255 if (event.type is OS.GDK_3BUTTON_PRESS) return 0;
|
|
|
256 if (event.button is 3 && event.type is OS.GDK_BUTTON_PRESS) {
|
|
|
257 sendEvent (SWT.MenuDetect);
|
|
|
258 return 0;
|
|
|
259 }
|
|
|
260 if (event.type is OS.GDK_2BUTTON_PRESS) {
|
|
|
261 postEvent (SWT.DefaultSelection);
|
|
|
262 } else {
|
|
|
263 postEvent (SWT.Selection);
|
|
|
264 }
|
|
|
265 return 0;
|
|
|
266 }
|
|
|
267
|
|
|
268 override int /*long*/ gtk_size_allocate (GtkWidget* widget, int /*long*/ allocation) {
|
|
|
269 if (image !is null && image.mask !is null) {
|
|
|
270 if (OS.gdk_drawable_get_depth (image.mask) is 1) {
|
|
|
271 int xoffset = cast(int) Math.floor (OS.GTK_WIDGET_X (widget) + ((OS.GTK_WIDGET_WIDTH (widget) - OS.GTK_WIDGET_REQUISITION_WIDTH (widget)) * 0.5) + 0.5);
|
|
|
272 int yoffset = cast(int) Math.floor (OS.GTK_WIDGET_Y (widget) + ((OS.GTK_WIDGET_HEIGHT (widget) - OS.GTK_WIDGET_REQUISITION_HEIGHT (widget)) * 0.5) + 0.5);
|
|
|
273 Rectangle b = image.getBounds();
|
|
|
274 auto gdkImage = OS.gdk_drawable_get_image (image.mask, 0, 0, b.width, b.height);
|
|
|
275 if (gdkImage is null) SWT.error(SWT.ERROR_NO_HANDLES);
|
|
|
276 byte[] maskData = (cast(byte*)gdkImage.mem)[ 0 .. gdkImage.bpl * gdkImage.height].dup;
|
|
|
277 Region region = new Region (display);
|
|
|
278 for (int y = 0; y < b.height; y++) {
|
|
|
279 for (int x = 0; x < b.width; x++) {
|
|
|
280 int index = (y * gdkImage.bpl) + (x >> 3);
|
|
|
281 int theByte = maskData [index] & 0xFF;
|
|
|
282 int mask = 1 << (x & 0x7);
|
|
|
283 if ((theByte & mask) !is 0) {
|
|
|
284 region.add (xoffset + x, yoffset + y, 1, 1);
|
|
|
285 }
|
|
|
286 }
|
|
|
287 }
|
|
|
288 OS.g_object_unref (gdkImage);
|
|
|
289 OS.gtk_widget_realize (handle);
|
|
|
290 auto window = OS.GTK_WIDGET_WINDOW (handle);
|
|
|
291 OS.gdk_window_shape_combine_region (window, region.handle, 0, 0);
|
|
|
292 region.dispose ();
|
|
|
293 }
|
|
|
294 }
|
|
|
295 return 0;
|
|
|
296 }
|
|
|
297
|
|
|
298 void hookEvents () {
|
|
|
299 int eventMask = OS.GDK_BUTTON_PRESS_MASK;
|
|
|
300 OS.gtk_widget_add_events (handle, eventMask);
|
|
|
301 OS.g_signal_connect_closure_by_id (handle, display.signalIds [BUTTON_PRESS_EVENT], 0, display.closures [BUTTON_PRESS_EVENT], false);
|
|
|
302 OS.g_signal_connect_closure_by_id (imageHandle, display.signalIds [SIZE_ALLOCATE], 0, display.closures [SIZE_ALLOCATE], false);
|
|
|
303 }
|
|
|
304
|
|
|
305 /**
|
|
|
306 * Returns <code>true</code> if the receiver is visible and
|
|
|
307 * <code>false</code> otherwise.
|
|
|
308 *
|
|
|
309 * @return the receiver's visibility
|
|
|
310 *
|
|
|
311 * @exception SWTException <ul>
|
|
|
312 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
|
|
|
313 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
|
|
|
314 * </ul>
|
|
|
315 */
|
|
|
316 public bool getVisible () {
|
|
|
317 checkWidget ();
|
|
|
318 return OS.GTK_WIDGET_VISIBLE (handle);
|
|
|
319 }
|
|
|
320
|
|
|
321 void register () {
|
|
|
322 super.register ();
|
|
|
323 display.addWidget (imageHandle, this);
|
|
|
324 }
|
|
|
325
|
|
|
326 void releaseHandle () {
|
|
|
327 if (handle !is null) OS.gtk_widget_destroy (handle);
|
|
|
328 handle = imageHandle = null;
|
|
|
329 super.releaseHandle ();
|
|
|
330 parent = null;
|
|
|
331 }
|
|
|
332
|
|
|
333 void releaseWidget () {
|
|
|
334 super.releaseWidget ();
|
|
|
335 if (tooltipsHandle !is null) OS.g_object_unref (tooltipsHandle);
|
|
|
336 tooltipsHandle = null;
|
|
|
337 if (imageList !is null) imageList.dispose ();
|
|
|
338 imageList = null;
|
|
|
339 toolTipText = null;
|
|
|
340 }
|
|
|
341
|
|
|
342 /**
|
|
|
343 * Removes the listener from the collection of listeners who will
|
|
|
344 * be notified when the platform-specific context menu trigger has
|
|
|
345 * occurred.
|
|
|
346 *
|
|
|
347 * @param listener the listener which should no longer be notified
|
|
|
348 *
|
|
|
349 * @exception IllegalArgumentException <ul>
|
|
|
350 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
|
|
|
351 * </ul>
|
|
|
352 * @exception SWTException <ul>
|
|
|
353 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
|
|
|
354 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
|
|
|
355 * </ul>
|
|
|
356 *
|
|
|
357 * @see MenuDetectListener
|
|
|
358 * @see #addMenuDetectListener
|
|
|
359 *
|
|
|
360 * @since 3.3
|
|
|
361 */
|
|
|
362 public void removeMenuDetectListener (MenuDetectListener listener) {
|
|
|
363 checkWidget ();
|
|
|
364 if (listener is null) error (SWT.ERROR_NULL_ARGUMENT);
|
|
|
365 if (eventTable is null) return;
|
|
|
366 eventTable.unhook (SWT.MenuDetect, listener);
|
|
|
367 }
|
|
|
368
|
|
|
369 /**
|
|
|
370 * Removes the listener from the collection of listeners who will
|
|
|
371 * be notified when the receiver is selected by the user.
|
|
|
372 *
|
|
|
373 * @param listener the listener which should no longer be notified
|
|
|
374 *
|
|
|
375 * @exception IllegalArgumentException <ul>
|
|
|
376 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
|
|
|
377 * </ul>
|
|
|
378 * @exception SWTException <ul>
|
|
|
379 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
|
|
|
380 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
|
|
|
381 * </ul>
|
|
|
382 *
|
|
|
383 * @see SelectionListener
|
|
|
384 * @see #addSelectionListener
|
|
|
385 */
|
|
|
386 public void removeSelectionListener (SelectionListener listener) {
|
|
|
387 checkWidget ();
|
|
|
388 if (listener is null) error (SWT.ERROR_NULL_ARGUMENT);
|
|
|
389 if (eventTable is null) return;
|
|
|
390 eventTable.unhook (SWT.Selection, listener);
|
|
|
391 eventTable.unhook (SWT.DefaultSelection, listener);
|
|
|
392 }
|
|
|
393
|
|
|
394 /**
|
|
|
395 * Sets the receiver's image.
|
|
|
396 *
|
|
|
397 * @param image the new image
|
|
|
398 *
|
|
|
399 * @exception IllegalArgumentException <ul>
|
|
|
400 * <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</li>
|
|
|
401 * </ul>
|
|
|
402 * @exception SWTException <ul>
|
|
|
403 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
|
|
|
404 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
|
|
|
405 * </ul>
|
|
|
406 */
|
|
|
407 public void setImage (Image image) {
|
|
|
408 checkWidget ();
|
|
|
409 if (image !is null && image.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT);
|
|
|
410 this.image = image;
|
|
|
411 if (image !is null) {
|
|
|
412 Rectangle rect = image.getBounds ();
|
|
|
413 OS.gtk_widget_set_size_request (handle, rect.width, rect.height);
|
|
|
414 if (imageList is null) imageList = new ImageList ();
|
|
|
415 int imageIndex = imageList.indexOf (image);
|
|
|
416 if (imageIndex is -1) {
|
|
|
417 imageIndex = imageList.add (image);
|
|
|
418 } else {
|
|
|
419 imageList.put (imageIndex, image);
|
|
|
420 }
|
|
|
421 auto pixbuf = imageList.getPixbuf (imageIndex);
|
|
|
422 OS.gtk_image_set_from_pixbuf (cast(GtkImage*)imageHandle, pixbuf);
|
|
|
423 OS.gtk_widget_show (imageHandle);
|
|
|
424 } else {
|
|
|
425 OS.gtk_widget_set_size_request (handle, 1, 1);
|
|
|
426 OS.gtk_image_set_from_pixbuf (cast(GtkImage*)imageHandle, null);
|
|
|
427 OS.gtk_widget_hide (imageHandle);
|
|
|
428 }
|
|
|
429 }
|
|
|
430
|
|
|
431 /**
|
|
|
432 * Sets the receiver's tool tip to the argument, which
|
|
|
433 * may be null indicating that no tool tip should be shown.
|
|
|
434 *
|
|
|
435 * @param toolTip the new tool tip (or null)
|
|
|
436 *
|
|
|
437 * @exception SWTException <ul>
|
|
|
438 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
|
|
|
439 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
|
|
|
440 * </ul>
|
|
|
441 *
|
|
|
442 * @since 3.2
|
|
|
443 */
|
|
|
444 public void setToolTip (ToolTip toolTip) {
|
|
|
445 checkWidget ();
|
|
|
446 ToolTip oldTip = this.toolTip, newTip = toolTip;
|
|
|
447 if (oldTip !is null) oldTip.item = null;
|
|
|
448 this.toolTip = newTip;
|
|
|
449 if (newTip !is null) newTip.item = this;
|
|
|
450 }
|
|
|
451
|
|
|
452 /**
|
|
|
453 * Sets the receiver's tool tip text to the argument, which
|
|
|
454 * may be null indicating that no tool tip text should be shown.
|
|
|
455 *
|
|
|
456 * @param value the new tool tip text (or null)
|
|
|
457 *
|
|
|
458 * @exception SWTException <ul>
|
|
|
459 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
|
|
|
460 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
|
|
|
461 * </ul>
|
|
|
462 */
|
|
|
463 public void setToolTipText (char[] string) {
|
|
|
464 checkWidget ();
|
|
|
465 toolTipText = string;
|
|
|
466 char* buffer = null;
|
|
|
467 if (string !is null && string.length > 0) {
|
|
|
468 buffer = toStringz( string );
|
|
|
469 }
|
|
|
470 if (tooltipsHandle is null) {
|
|
|
471 tooltipsHandle = cast(GtkWidget*)OS.gtk_tooltips_new ();
|
|
|
472 if (tooltipsHandle is null) error (SWT.ERROR_NO_HANDLES);
|
|
|
473 OS.g_object_ref (cast(GObject*)tooltipsHandle);
|
|
|
474 OS.gtk_object_sink (cast(GtkObject*)tooltipsHandle);
|
|
|
475 }
|
|
|
476 OS.gtk_tooltips_set_tip (cast(GtkTooltips*)tooltipsHandle, handle, buffer, null);
|
|
|
477 }
|
|
|
478
|
|
|
479 /**
|
|
|
480 * Makes the receiver visible if the argument is <code>true</code>,
|
|
|
481 * and makes it invisible otherwise.
|
|
|
482 *
|
|
|
483 * @param visible the new visibility state
|
|
|
484 *
|
|
|
485 * @exception SWTException <ul>
|
|
|
486 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
|
|
|
487 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
|
|
|
488 * </ul>
|
|
|
489 */
|
|
|
490 public void setVisible (bool visible) {
|
|
|
491 checkWidget ();
|
|
|
492 if (OS.GTK_WIDGET_VISIBLE (handle) is visible) return;
|
|
|
493 if (visible) {
|
|
|
494 /*
|
|
|
495 * It is possible (but unlikely), that application
|
|
|
496 * code could have disposed the widget in the show
|
|
|
497 * event. If this happens, just return.
|
|
|
498 */
|
|
|
499 sendEvent (SWT.Show);
|
|
|
500 if (isDisposed ()) return;
|
|
|
501 OS.gtk_widget_show (handle);
|
|
|
502 } else {
|
|
|
503 OS.gtk_widget_hide (handle);
|
|
|
504 sendEvent (SWT.Hide);
|
|
|
505 }
|
|
|
506 }
|
|
|
507 }
|
