wxTopLevelWindow::GetClientSize() returns 0x0 when the window is minimized under...
[wxWidgets.git] / src / gtk / toplevel.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/gtk/toplevel.cpp
3 // Purpose:
4 // Author: Robert Roebling
5 // Id: $Id$
6 // Copyright: (c) 1998 Robert Roebling
7 // Licence: wxWindows licence
8 /////////////////////////////////////////////////////////////////////////////
9
10 // For compilers that support precompilation, includes "wx.h".
11 #include "wx/wxprec.h"
12
13 // ============================================================================
14 // declarations
15 // ============================================================================
16
17 // ----------------------------------------------------------------------------
18 // headers
19 // ----------------------------------------------------------------------------
20
21 #ifdef __VMS
22 #define XIconifyWindow XICONIFYWINDOW
23 #endif
24
25 #include "wx/toplevel.h"
26
27 #ifndef WX_PRECOMP
28 #include "wx/frame.h"
29 #include "wx/icon.h"
30 #include "wx/log.h"
31 #include "wx/app.h"
32 #endif
33
34 #include "wx/gtk/private.h"
35 #include "wx/evtloop.h"
36
37 #include <gtk/gtk.h>
38 #include <gdk/gdkx.h>
39
40 #include "wx/gtk/win_gtk.h"
41
42 #include "wx/unix/utilsx11.h"
43
44 // XA_CARDINAL
45 #include <X11/Xatom.h>
46
47 // ----------------------------------------------------------------------------
48 // data
49 // ----------------------------------------------------------------------------
50
51 extern int g_openDialogs;
52 extern wxWindowGTK *g_delayedFocus;
53
54 // the frame that is currently active (i.e. its child has focus). It is
55 // used to generate wxActivateEvents
56 static wxTopLevelWindowGTK *g_activeFrame = (wxTopLevelWindowGTK*) NULL;
57 static wxTopLevelWindowGTK *g_lastActiveFrame = (wxTopLevelWindowGTK*) NULL;
58
59 // if we detect that the app has got/lost the focus, we set this variable to
60 // either TRUE or FALSE and an activate event will be sent during the next
61 // OnIdle() call and it is reset to -1: this value means that we shouldn't
62 // send any activate events at all
63 static int g_sendActivateEvent = -1;
64
65 //-----------------------------------------------------------------------------
66 // RequestUserAttention related functions
67 //-----------------------------------------------------------------------------
68
69 extern "C" {
70 static void wxgtk_window_set_urgency_hint (GtkWindow *win,
71 gboolean setting)
72 {
73 wxASSERT_MSG( GTK_WIDGET_REALIZED(win), wxT("wxgtk_window_set_urgency_hint: GdkWindow not realized") );
74 GdkWindow *window = GTK_WIDGET(win)->window;
75 XWMHints *wm_hints;
76
77 wm_hints = XGetWMHints(GDK_WINDOW_XDISPLAY(window), GDK_WINDOW_XWINDOW(window));
78
79 if (!wm_hints)
80 wm_hints = XAllocWMHints();
81
82 if (setting)
83 wm_hints->flags |= XUrgencyHint;
84 else
85 wm_hints->flags &= ~XUrgencyHint;
86
87 XSetWMHints(GDK_WINDOW_XDISPLAY(window), GDK_WINDOW_XWINDOW(window), wm_hints);
88 XFree(wm_hints);
89 }
90
91 static gboolean gtk_frame_urgency_timer_callback( wxTopLevelWindowGTK *win )
92 {
93 #if GTK_CHECK_VERSION(2,7,0)
94 if(!gtk_check_version(2,7,0))
95 gtk_window_set_urgency_hint(GTK_WINDOW( win->m_widget ), FALSE);
96 else
97 #endif
98 wxgtk_window_set_urgency_hint(GTK_WINDOW( win->m_widget ), FALSE);
99
100 win->m_urgency_hint = -2;
101 return FALSE;
102 }
103 }
104
105 //-----------------------------------------------------------------------------
106 // "focus_in_event"
107 //-----------------------------------------------------------------------------
108
109 extern "C" {
110 static gboolean gtk_frame_focus_in_callback( GtkWidget *widget,
111 GdkEvent *WXUNUSED(event),
112 wxTopLevelWindowGTK *win )
113 {
114 // don't need to install idle handler, its done from "event" signal
115
116 switch ( g_sendActivateEvent )
117 {
118 case -1:
119 // we've got focus from outside, synthetize wxActivateEvent
120 g_sendActivateEvent = 1;
121 break;
122
123 case 0:
124 // another our window just lost focus, it was already ours before
125 // - don't send any wxActivateEvent
126 g_sendActivateEvent = -1;
127 break;
128 }
129
130 g_activeFrame = win;
131 g_lastActiveFrame = g_activeFrame;
132
133 // wxPrintf( wxT("active: %s\n"), win->GetTitle().c_str() );
134
135 // MR: wxRequestUserAttention related block
136 switch( win->m_urgency_hint )
137 {
138 default:
139 g_source_remove( win->m_urgency_hint );
140 // no break, fallthrough to remove hint too
141 case -1:
142 #if GTK_CHECK_VERSION(2,7,0)
143 if(!gtk_check_version(2,7,0))
144 gtk_window_set_urgency_hint(GTK_WINDOW( widget ), FALSE);
145 else
146 #endif
147 {
148 wxgtk_window_set_urgency_hint(GTK_WINDOW( widget ), FALSE);
149 }
150
151 win->m_urgency_hint = -2;
152 break;
153
154 case -2: break;
155 }
156
157 wxLogTrace(wxT("activate"), wxT("Activating frame %p (from focus_in)"), g_activeFrame);
158 wxActivateEvent event(wxEVT_ACTIVATE, true, g_activeFrame->GetId());
159 event.SetEventObject(g_activeFrame);
160 g_activeFrame->GetEventHandler()->ProcessEvent(event);
161
162 return FALSE;
163 }
164 }
165
166 //-----------------------------------------------------------------------------
167 // "focus_out_event"
168 //-----------------------------------------------------------------------------
169
170 extern "C" {
171 static gboolean gtk_frame_focus_out_callback( GtkWidget *widget,
172 GdkEventFocus *WXUNUSED(gdk_event),
173 wxTopLevelWindowGTK *win )
174 {
175 // don't need to install idle handler, its done from "event" signal
176
177 // if the focus goes out of our app alltogether, OnIdle() will send
178 // wxActivateEvent, otherwise gtk_window_focus_in_callback() will reset
179 // g_sendActivateEvent to -1
180 g_sendActivateEvent = 0;
181
182 // wxASSERT_MSG( (g_activeFrame == win), wxT("TLW deactivatd although it wasn't active") );
183
184 // wxPrintf( wxT("inactive: %s\n"), win->GetTitle().c_str() );
185
186 if (g_activeFrame)
187 {
188 wxLogTrace(wxT("activate"), wxT("Activating frame %p (from focus_in)"), g_activeFrame);
189 wxActivateEvent event(wxEVT_ACTIVATE, false, g_activeFrame->GetId());
190 event.SetEventObject(g_activeFrame);
191 g_activeFrame->GetEventHandler()->ProcessEvent(event);
192
193 g_activeFrame = NULL;
194 }
195
196 return FALSE;
197 }
198 }
199
200 //-----------------------------------------------------------------------------
201 // "focus" from m_window
202 //-----------------------------------------------------------------------------
203
204 extern "C" {
205 static gboolean gtk_frame_focus_callback( GtkWidget *WXUNUSED(widget),
206 GtkDirectionType WXUNUSED(d),
207 wxWindow *WXUNUSED(win) )
208 {
209 if (g_isIdle)
210 wxapp_install_idle_handler();
211
212 // This disables GTK's tab traversal
213 return TRUE;
214 }
215 }
216
217 //-----------------------------------------------------------------------------
218 // "size_allocate"
219 //-----------------------------------------------------------------------------
220
221 extern "C" {
222 static void gtk_frame_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxTopLevelWindowGTK *win )
223 {
224 if (g_isIdle)
225 wxapp_install_idle_handler();
226
227 if (!win->m_hasVMT)
228 return;
229
230 if ((win->m_width != alloc->width) || (win->m_height != alloc->height))
231 {
232 /*
233 wxPrintf( wxT("gtk_frame_size_callback from ") );
234 if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
235 wxPrintf( win->GetClassInfo()->GetClassName() );
236 wxPrintf( wxT(" %d %d %d %d\n"), (int)alloc->x,
237 (int)alloc->y,
238 (int)alloc->width,
239 (int)alloc->height );
240 */
241
242 // Tell the wxWindow class about the new size
243 win->m_width = alloc->width;
244 win->m_height = alloc->height;
245
246 win->GtkUpdateSize();
247 }
248 }
249 }
250
251 //-----------------------------------------------------------------------------
252 // "delete_event"
253 //-----------------------------------------------------------------------------
254
255 extern "C" {
256 static gboolean
257 gtk_frame_delete_callback( GtkWidget *WXUNUSED(widget),
258 GdkEvent *WXUNUSED(event),
259 wxTopLevelWindowGTK *win )
260 {
261 // don't need to install idle handler, its done from "event" signal
262
263 if (win->IsEnabled() &&
264 (g_openDialogs == 0 || (win->GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) ||
265 win->IsGrabbed()))
266 win->Close();
267
268 return TRUE;
269 }
270 }
271
272
273 //-----------------------------------------------------------------------------
274 // "configure_event"
275 //-----------------------------------------------------------------------------
276
277 extern "C" {
278 static gboolean
279 gtk_frame_configure_callback( GtkWidget *WXUNUSED(widget),
280 GdkEventConfigure *WXUNUSED(event),
281 wxTopLevelWindowGTK *win )
282 {
283 // don't need to install idle handler, its done from "event" signal
284
285 if (!win->m_hasVMT || !win->IsShown())
286 return FALSE;
287
288
289 int x = 0;
290 int y = 0;
291 gdk_window_get_root_origin( win->m_widget->window, &x, &y );
292 win->m_x = x;
293 win->m_y = y;
294
295 wxMoveEvent mevent( wxPoint(win->m_x,win->m_y), win->GetId() );
296 mevent.SetEventObject( win );
297 win->GetEventHandler()->ProcessEvent( mevent );
298
299 return FALSE;
300 }
301 }
302
303 //-----------------------------------------------------------------------------
304 // "realize" from m_widget
305 //-----------------------------------------------------------------------------
306
307 // we cannot MWM hints and icons before the widget has been realized,
308 // so we do this directly after realization
309
310 extern "C" {
311 static void
312 gtk_frame_realized_callback( GtkWidget * WXUNUSED(widget),
313 wxTopLevelWindowGTK *win )
314 {
315 if (g_isIdle)
316 wxapp_install_idle_handler();
317
318 // All this is for Motif Window Manager "hints" and is supposed to be
319 // recognized by other WM as well. Not tested.
320 gdk_window_set_decorations(win->m_widget->window,
321 (GdkWMDecoration)win->m_gdkDecor);
322 gdk_window_set_functions(win->m_widget->window,
323 (GdkWMFunction)win->m_gdkFunc);
324
325 // GTK's shrinking/growing policy
326 if ((win->m_gdkFunc & GDK_FUNC_RESIZE) == 0)
327 gtk_window_set_resizable(GTK_WINDOW(win->m_widget), FALSE);
328 else
329 gtk_window_set_policy(GTK_WINDOW(win->m_widget), 1, 1, 1);
330
331 // reset the icon
332 wxIconBundle iconsOld = win->GetIcons();
333 if ( iconsOld.GetIcon(-1).Ok() )
334 {
335 win->SetIcon( wxNullIcon );
336 win->SetIcons( iconsOld );
337 }
338 }
339 }
340
341 //-----------------------------------------------------------------------------
342 // "map_event" from m_widget
343 //-----------------------------------------------------------------------------
344
345 extern "C" {
346 static void
347 gtk_frame_map_callback( GtkWidget * WXUNUSED(widget),
348 GdkEvent * WXUNUSED(event),
349 wxTopLevelWindow *win )
350 {
351 win->SetIconizeState(false);
352 }
353 }
354
355 //-----------------------------------------------------------------------------
356 // "unmap_event" from m_widget
357 //-----------------------------------------------------------------------------
358
359 extern "C" {
360 static void
361 gtk_frame_unmap_callback( GtkWidget * WXUNUSED(widget),
362 GdkEvent * WXUNUSED(event),
363 wxTopLevelWindow *win )
364 {
365 win->SetIconizeState(true);
366 }
367 }
368
369 //-----------------------------------------------------------------------------
370 // "expose_event" of m_client
371 //-----------------------------------------------------------------------------
372
373 extern "C" {
374 static gboolean
375 gtk_window_expose_callback( GtkWidget *widget,
376 GdkEventExpose *gdk_event,
377 wxWindow *win )
378 {
379 GtkPizza *pizza = GTK_PIZZA(widget);
380
381 gtk_paint_flat_box (win->m_widget->style,
382 pizza->bin_window, GTK_STATE_NORMAL,
383 GTK_SHADOW_NONE,
384 &gdk_event->area,
385 win->m_widget,
386 (char *)"base",
387 0, 0, -1, -1);
388
389 return FALSE;
390 }
391 }
392
393 // ----------------------------------------------------------------------------
394 // wxTopLevelWindowGTK itself
395 // ----------------------------------------------------------------------------
396
397 //-----------------------------------------------------------------------------
398 // InsertChild for wxTopLevelWindowGTK
399 //-----------------------------------------------------------------------------
400
401 /* Callback for wxTopLevelWindowGTK. This very strange beast has to be used because
402 * C++ has no virtual methods in a constructor. We have to emulate a
403 * virtual function here as wxWidgets requires different ways to insert
404 * a child in container classes. */
405
406 static void wxInsertChildInTopLevelWindow( wxTopLevelWindowGTK* parent, wxWindow* child )
407 {
408 wxASSERT( GTK_IS_WIDGET(child->m_widget) );
409
410 if (!parent->m_insertInClientArea)
411 {
412 // these are outside the client area
413 wxTopLevelWindowGTK* frame = (wxTopLevelWindowGTK*) parent;
414 gtk_pizza_put( GTK_PIZZA(frame->m_mainWidget),
415 GTK_WIDGET(child->m_widget),
416 child->m_x,
417 child->m_y,
418 child->m_width,
419 child->m_height );
420 }
421 else
422 {
423 // these are inside the client area
424 gtk_pizza_put( GTK_PIZZA(parent->m_wxwindow),
425 GTK_WIDGET(child->m_widget),
426 child->m_x,
427 child->m_y,
428 child->m_width,
429 child->m_height );
430 }
431 }
432
433 // ----------------------------------------------------------------------------
434 // wxTopLevelWindowGTK creation
435 // ----------------------------------------------------------------------------
436
437 void wxTopLevelWindowGTK::Init()
438 {
439 m_sizeSet = false;
440 m_miniEdge = 0;
441 m_miniTitle = 0;
442 m_mainWidget = (GtkWidget*) NULL;
443 m_insertInClientArea = true;
444 m_isIconized = false;
445 m_fsIsShowing = false;
446 m_fsSaveFlag = 0;
447 m_themeEnabled = true;
448 m_gdkDecor = m_gdkFunc = 0;
449 m_grabbed = false;
450
451 m_urgency_hint = -2;
452 }
453
454 bool wxTopLevelWindowGTK::Create( wxWindow *parent,
455 wxWindowID id,
456 const wxString& title,
457 const wxPoint& pos,
458 const wxSize& sizeOrig,
459 long style,
460 const wxString &name )
461 {
462 // always create a frame of some reasonable, even if arbitrary, size (at
463 // least for MSW compatibility)
464 wxSize size = sizeOrig;
465 size.x = WidthDefault(size.x);
466 size.y = HeightDefault(size.y);
467
468 wxTopLevelWindows.Append( this );
469
470 m_needParent = false;
471
472 if (!PreCreation( parent, pos, size ) ||
473 !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
474 {
475 wxFAIL_MSG( wxT("wxTopLevelWindowGTK creation failed") );
476 return false;
477 }
478
479 m_title = title;
480
481 m_insertCallback = (wxInsertChildFunction) wxInsertChildInTopLevelWindow;
482
483 // NB: m_widget may be !=NULL if it was created by derived class' Create,
484 // e.g. in wxTaskBarIconAreaGTK
485 if (m_widget == NULL)
486 {
487 if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)
488 {
489 m_widget = gtk_window_new(GTK_WINDOW_TOPLEVEL);
490 // Tell WM that this is a dialog window and make it center
491 // on parent by default (this is what GtkDialog ctor does):
492 gtk_window_set_type_hint(GTK_WINDOW(m_widget),
493 GDK_WINDOW_TYPE_HINT_DIALOG);
494 gtk_window_set_position(GTK_WINDOW(m_widget),
495 GTK_WIN_POS_CENTER_ON_PARENT);
496 }
497 else
498 {
499 m_widget = gtk_window_new(GTK_WINDOW_TOPLEVEL);
500 #if GTK_CHECK_VERSION(2,1,0)
501 if (!gtk_check_version(2,1,0))
502 {
503 if (style & wxFRAME_TOOL_WINDOW)
504 {
505 gtk_window_set_type_hint(GTK_WINDOW(m_widget),
506 GDK_WINDOW_TYPE_HINT_UTILITY);
507
508 // On some WMs, like KDE, a TOOL_WINDOW will still show
509 // on the taskbar, but on Gnome a TOOL_WINDOW will not.
510 // For consistency between WMs and with Windows, we
511 // should set the NO_TASKBAR flag which will apply
512 // the set_skip_taskbar_hint if it is available,
513 // ensuring no taskbar entry will appear.
514 style |= wxFRAME_NO_TASKBAR;
515 }
516 }
517 #endif
518 }
519 }
520
521 wxWindow *topParent = wxGetTopLevelParent(m_parent);
522 if (topParent && (((GTK_IS_WINDOW(topParent->m_widget)) &&
523 (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)) ||
524 (style & wxFRAME_FLOAT_ON_PARENT)))
525 {
526 gtk_window_set_transient_for( GTK_WINDOW(m_widget),
527 GTK_WINDOW(topParent->m_widget) );
528 }
529
530 #if GTK_CHECK_VERSION(2,2,0)
531 if (!gtk_check_version(2,2,0))
532 {
533 if (style & wxFRAME_NO_TASKBAR)
534 {
535 gtk_window_set_skip_taskbar_hint(GTK_WINDOW(m_widget), TRUE);
536 }
537 }
538 #endif
539
540 #ifdef __WXGTK24__
541 if (!gtk_check_version(2,4,0))
542 {
543 if (style & wxSTAY_ON_TOP)
544 {
545 gtk_window_set_keep_above(GTK_WINDOW(m_widget), TRUE);
546 }
547 }
548 #endif
549
550 #if 0
551 if (!name.empty())
552 gtk_window_set_role( GTK_WINDOW(m_widget), wxGTK_CONV( name ) );
553 #endif
554
555 gtk_window_set_title( GTK_WINDOW(m_widget), wxGTK_CONV( title ) );
556 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
557
558 g_signal_connect (m_widget, "delete_event",
559 G_CALLBACK (gtk_frame_delete_callback), this);
560
561 // m_mainWidget holds the toolbar, the menubar and the client area
562 m_mainWidget = gtk_pizza_new();
563 gtk_widget_show( m_mainWidget );
564 GTK_WIDGET_UNSET_FLAGS( m_mainWidget, GTK_CAN_FOCUS );
565 gtk_container_add( GTK_CONTAINER(m_widget), m_mainWidget );
566
567 if (m_miniEdge == 0) // wxMiniFrame has its own version.
568 {
569 // For m_mainWidget themes
570 g_signal_connect (m_mainWidget, "expose_event",
571 G_CALLBACK (gtk_window_expose_callback), this);
572 }
573
574 // m_wxwindow only represents the client area without toolbar and menubar
575 m_wxwindow = gtk_pizza_new();
576 gtk_widget_show( m_wxwindow );
577 gtk_container_add( GTK_CONTAINER(m_mainWidget), m_wxwindow );
578
579 // we donm't allow the frame to get the focus as otherwise
580 // the frame will grab it at arbitrary focus changes
581 GTK_WIDGET_UNSET_FLAGS( m_wxwindow, GTK_CAN_FOCUS );
582
583 if (m_parent) m_parent->AddChild( this );
584
585 // the user resized the frame by dragging etc.
586 g_signal_connect (m_widget, "size_allocate",
587 G_CALLBACK (gtk_frame_size_callback), this);
588
589 PostCreation();
590
591 if ((m_x != -1) || (m_y != -1))
592 gtk_widget_set_uposition( m_widget, m_x, m_y );
593
594 gtk_window_set_default_size( GTK_WINDOW(m_widget), m_width, m_height );
595
596 // we cannot set MWM hints and icons before the widget has
597 // been realized, so we do this directly after realization
598 g_signal_connect (m_widget, "realize",
599 G_CALLBACK (gtk_frame_realized_callback), this);
600
601 // map and unmap for iconized state
602 g_signal_connect (m_widget, "map_event",
603 G_CALLBACK (gtk_frame_map_callback), this);
604 g_signal_connect (m_widget, "unmap_event",
605 G_CALLBACK (gtk_frame_unmap_callback), this);
606
607 // the only way to get the window size is to connect to this event
608 g_signal_connect (m_widget, "configure_event",
609 G_CALLBACK (gtk_frame_configure_callback), this);
610
611 // disable native tab traversal
612 g_signal_connect (m_widget, "focus",
613 G_CALLBACK (gtk_frame_focus_callback), this);
614
615 // activation
616 g_signal_connect_after (m_widget, "focus_in_event",
617 G_CALLBACK (gtk_frame_focus_in_callback), this);
618 g_signal_connect_after (m_widget, "focus_out_event",
619 G_CALLBACK (gtk_frame_focus_out_callback), this);
620
621 // decorations
622 if ((style & wxSIMPLE_BORDER) || (style & wxNO_BORDER))
623 {
624 m_gdkDecor = 0;
625 m_gdkFunc = 0;
626 }
627 else
628 if (m_miniEdge > 0)
629 {
630 m_gdkDecor = 0;
631 m_gdkFunc = 0;
632
633 if ((style & wxRESIZE_BORDER) != 0)
634 m_gdkFunc |= GDK_FUNC_RESIZE;
635 }
636 else
637 {
638 m_gdkDecor = (long) GDK_DECOR_BORDER;
639 m_gdkFunc = (long) GDK_FUNC_MOVE;
640
641 // All this is for Motif Window Manager "hints" and is supposed to be
642 // recognized by other WMs as well.
643 if ((style & wxCAPTION) != 0)
644 {
645 m_gdkDecor |= GDK_DECOR_TITLE;
646 }
647 if ((style & wxCLOSE_BOX) != 0)
648 {
649 m_gdkFunc |= GDK_FUNC_CLOSE;
650 }
651 if ((style & wxSYSTEM_MENU) != 0)
652 {
653 m_gdkDecor |= GDK_DECOR_MENU;
654 }
655 if ((style & wxMINIMIZE_BOX) != 0)
656 {
657 m_gdkFunc |= GDK_FUNC_MINIMIZE;
658 m_gdkDecor |= GDK_DECOR_MINIMIZE;
659 }
660 if ((style & wxMAXIMIZE_BOX) != 0)
661 {
662 m_gdkFunc |= GDK_FUNC_MAXIMIZE;
663 m_gdkDecor |= GDK_DECOR_MAXIMIZE;
664 }
665 if ((style & wxRESIZE_BORDER) != 0)
666 {
667 m_gdkFunc |= GDK_FUNC_RESIZE;
668 m_gdkDecor |= GDK_DECOR_RESIZEH;
669 }
670 }
671
672 return true;
673 }
674
675 wxTopLevelWindowGTK::~wxTopLevelWindowGTK()
676 {
677 if (m_grabbed)
678 {
679 wxFAIL_MSG(_T("Window still grabbed"));
680 RemoveGrab();
681 }
682
683 m_isBeingDeleted = true;
684
685 // it may also be GtkScrolledWindow in the case of an MDI child
686 if (GTK_IS_WINDOW(m_widget))
687 {
688 gtk_window_set_focus( GTK_WINDOW(m_widget), NULL );
689 }
690
691 if (g_activeFrame == this)
692 g_activeFrame = NULL;
693 if (g_lastActiveFrame == this)
694 g_lastActiveFrame = NULL;
695 }
696
697 bool wxTopLevelWindowGTK::EnableCloseButton( bool enable )
698 {
699 if (enable)
700 m_gdkFunc |= GDK_FUNC_CLOSE;
701 else
702 m_gdkFunc &= ~GDK_FUNC_CLOSE;
703
704 if (GTK_WIDGET_REALIZED(m_widget) && (m_widget->window))
705 gdk_window_set_functions( m_widget->window, (GdkWMFunction)m_gdkFunc );
706
707 return true;
708 }
709
710 bool wxTopLevelWindowGTK::ShowFullScreen(bool show, long style )
711 {
712 if (show == m_fsIsShowing)
713 return false; // return what?
714
715 m_fsIsShowing = show;
716
717 wxX11FullScreenMethod method =
718 wxGetFullScreenMethodX11((WXDisplay*)GDK_DISPLAY(),
719 (WXWindow)GDK_ROOT_WINDOW());
720
721 #if GTK_CHECK_VERSION(2,2,0)
722 // NB: gtk_window_fullscreen() uses freedesktop.org's WMspec extensions
723 // to switch to fullscreen, which is not always available. We must
724 // check if WM supports the spec and use legacy methods if it
725 // doesn't.
726 if ( (method == wxX11_FS_WMSPEC) && !gtk_check_version(2,2,0) )
727 {
728 if (show)
729 {
730 m_fsSaveFlag = style;
731 gtk_window_fullscreen( GTK_WINDOW( m_widget ) );
732 }
733 else
734 {
735 m_fsSaveFlag = 0;
736 gtk_window_unfullscreen( GTK_WINDOW( m_widget ) );
737 }
738 }
739 else
740 #endif // GTK+ >= 2.2.0
741 {
742 GdkWindow *window = m_widget->window;
743
744 if (show)
745 {
746 m_fsSaveFlag = style;
747 GetPosition( &m_fsSaveFrame.x, &m_fsSaveFrame.y );
748 GetSize( &m_fsSaveFrame.width, &m_fsSaveFrame.height );
749
750 int screen_width,screen_height;
751 wxDisplaySize( &screen_width, &screen_height );
752
753 gint client_x, client_y, root_x, root_y;
754 gint width, height;
755
756 if (method != wxX11_FS_WMSPEC)
757 {
758 // don't do it always, Metacity hates it
759 m_fsSaveGdkFunc = m_gdkFunc;
760 m_fsSaveGdkDecor = m_gdkDecor;
761 m_gdkFunc = m_gdkDecor = 0;
762 gdk_window_set_decorations(window, (GdkWMDecoration)0);
763 gdk_window_set_functions(window, (GdkWMFunction)0);
764 }
765
766 gdk_window_get_origin (m_widget->window, &root_x, &root_y);
767 gdk_window_get_geometry (m_widget->window, &client_x, &client_y,
768 &width, &height, NULL);
769
770 gdk_window_move_resize (m_widget->window, -client_x, -client_y,
771 screen_width + 1, screen_height + 1);
772
773 wxSetFullScreenStateX11((WXDisplay*)GDK_DISPLAY(),
774 (WXWindow)GDK_ROOT_WINDOW(),
775 (WXWindow)GDK_WINDOW_XWINDOW(window),
776 show, &m_fsSaveFrame, method);
777 }
778 else // hide
779 {
780 m_fsSaveFlag = 0;
781 if (method != wxX11_FS_WMSPEC)
782 {
783 // don't do it always, Metacity hates it
784 m_gdkFunc = m_fsSaveGdkFunc;
785 m_gdkDecor = m_fsSaveGdkDecor;
786 gdk_window_set_decorations(window, (GdkWMDecoration)m_gdkDecor);
787 gdk_window_set_functions(window, (GdkWMFunction)m_gdkFunc);
788 }
789
790 wxSetFullScreenStateX11((WXDisplay*)GDK_DISPLAY(),
791 (WXWindow)GDK_ROOT_WINDOW(),
792 (WXWindow)GDK_WINDOW_XWINDOW(window),
793 show, &m_fsSaveFrame, method);
794
795 SetSize(m_fsSaveFrame.x, m_fsSaveFrame.y,
796 m_fsSaveFrame.width, m_fsSaveFrame.height);
797 }
798 }
799
800 // documented behaviour is to show the window if it's still hidden when
801 // showing it full screen
802 if ( show && !IsShown() )
803 Show();
804
805 return true;
806 }
807
808 // ----------------------------------------------------------------------------
809 // overridden wxWindow methods
810 // ----------------------------------------------------------------------------
811
812 bool wxTopLevelWindowGTK::Show( bool show )
813 {
814 wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
815
816 if (show == IsShown())
817 return true;
818
819 if (show && !m_sizeSet)
820 {
821 /* by calling GtkOnSize here, we don't have to call
822 either after showing the frame, which would entail
823 much ugly flicker or from within the size_allocate
824 handler, because GTK 1.1.X forbids that. */
825
826 GtkOnSize();
827 }
828
829 // This seems no longer to be needed and the call
830 // itself is deprecated.
831 //
832 //if (show)
833 // gtk_widget_set_uposition( m_widget, m_x, m_y );
834
835 return wxWindow::Show( show );
836 }
837
838 void wxTopLevelWindowGTK::Raise()
839 {
840 gtk_window_present( GTK_WINDOW( m_widget ) );
841 }
842
843 void wxTopLevelWindowGTK::DoMoveWindow(int WXUNUSED(x), int WXUNUSED(y), int WXUNUSED(width), int WXUNUSED(height) )
844 {
845 wxFAIL_MSG( wxT("DoMoveWindow called for wxTopLevelWindowGTK") );
846 }
847
848 // ----------------------------------------------------------------------------
849 // window geometry
850 // ----------------------------------------------------------------------------
851
852 void wxTopLevelWindowGTK::GTKDoSetSize(int width, int height)
853 {
854 // avoid recursions
855 if (m_resizing)
856 return;
857 m_resizing = true;
858
859 int old_width = m_width;
860 int old_height = m_height;
861
862 if ( width != -1 )
863 m_width = width;
864 if ( height != -1 )
865 m_height = height;
866
867 // GPE's window manager doesn't like size hints at all, esp. when the user
868 // has to use the virtual keyboard, so don't constrain size there
869 #ifndef __WXGPE__
870 int minWidth = GetMinWidth(),
871 minHeight = GetMinHeight(),
872 maxWidth = GetMaxWidth(),
873 maxHeight = GetMaxHeight();
874
875 if ( minWidth != -1 && m_width < minWidth )
876 m_width = minWidth;
877 if ( minHeight != -1 && m_height < minHeight )
878 m_height = minHeight;
879 if ( maxWidth != -1 && m_width > maxWidth )
880 m_width = maxWidth;
881 if ( maxHeight != -1 && m_height > maxHeight )
882 m_height = maxHeight;
883 #endif // __WXGPE__
884
885 if ( m_width != old_width || m_height != old_height )
886 {
887 gtk_window_resize( GTK_WINDOW(m_widget), m_width, m_height );
888
889 /* we set the size in GtkOnSize, i.e. mostly the actual resizing is
890 done either directly before the frame is shown or in idle time
891 so that different calls to SetSize() don't lead to flicker. */
892 m_sizeSet = false;
893 }
894
895 m_resizing = false;
896 }
897
898 void wxTopLevelWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags )
899 {
900 wxCHECK_RET( m_widget, wxT("invalid frame") );
901
902 // this shouldn't happen: wxFrame, wxMDIParentFrame and wxMDIChildFrame have m_wxwindow
903 wxASSERT_MSG( (m_wxwindow != NULL), wxT("invalid frame") );
904
905
906 // deal with the position first
907 int old_x = m_x;
908 int old_y = m_y;
909
910 if ( !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
911 {
912 // -1 means "use existing" unless the flag above is specified
913 if ( x != -1 )
914 m_x = x;
915 if ( y != -1 )
916 m_y = y;
917 }
918 else // wxSIZE_ALLOW_MINUS_ONE
919 {
920 m_x = x;
921 m_y = y;
922 }
923
924 if ( m_x != old_x || m_y != old_y )
925 {
926 gtk_window_move( GTK_WINDOW(m_widget), m_x, m_y );
927 }
928
929
930 // and now change the size: as we want to set the size of the entire
931 // window, including decorations, we must adjust the size passed to
932 // GTKDoSetSize() which takes with the size of undecorated frame only
933 if ( width != -1 || height != -1 )
934 {
935 int wTotal,
936 hTotal;
937 DoGetSize(&wTotal, &hTotal);
938
939 int wUndec,
940 hUndec;
941 wxTopLevelWindowBase::DoGetSize(&wUndec, &hUndec);
942
943 if ( width != -1 )
944 width -= wTotal - wUndec;
945 if ( height != -1 )
946 height -= hTotal - hUndec;
947 }
948
949 GTKDoSetSize(width, height);
950 }
951
952 void wxTopLevelWindowGTK::DoGetSize(int *width, int *height) const
953 {
954 wxCHECK_RET( m_widget, wxT("invalid frame") );
955
956 if ( !m_widget->window )
957 {
958 // this can happen if we're called before the window is realized, so
959 // don't assert but just return the stored values
960 wxTopLevelWindowBase::DoGetSize(width, height);
961 return;
962 }
963
964 GdkRectangle rect;
965 gdk_window_get_frame_extents(m_widget->window, &rect);
966
967 if ( width )
968 *width = rect.width;
969 if ( height )
970 *height = rect.height;
971 }
972
973 void wxTopLevelWindowGTK::DoGetClientSize( int *width, int *height ) const
974 {
975 if ( IsIconized() )
976 {
977 // for consistency with wxMSW, client area is supposed to be empty for
978 // the iconized windows
979 if ( width )
980 *width = 0;
981 if ( height )
982 *height = 0;
983
984 return;
985 }
986
987 wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
988
989 if (height)
990 {
991 *height = m_height - 2 * m_miniEdge - m_miniTitle;
992 if (*height < 0)
993 *height = 0;
994 }
995 if (width)
996 {
997 *width = m_width - 2 * m_miniEdge;
998 if (*width < 0)
999 *width = 0;
1000 }
1001 }
1002
1003 void wxTopLevelWindowGTK::DoSetClientSize( int width, int height )
1004 {
1005 GTKDoSetSize(width + m_miniEdge*2, height + m_miniEdge*2 + m_miniTitle);
1006 }
1007
1008 void wxTopLevelWindowGTK::DoSetSizeHints( int minW, int minH,
1009 int maxW, int maxH,
1010 int incW, int incH )
1011 {
1012 wxTopLevelWindowBase::DoSetSizeHints( minW, minH, maxW, maxH, incW, incH );
1013
1014 const wxSize minSize = GetMinSize();
1015 const wxSize maxSize = GetMaxSize();
1016 GdkGeometry hints;
1017 int hints_mask = 0;
1018 if (minSize.x > 0 || minSize.y > 0)
1019 {
1020 hints_mask |= GDK_HINT_MIN_SIZE;
1021 hints.min_width = minSize.x > 0 ? minSize.x : 0;
1022 hints.min_height = minSize.y > 0 ? minSize.y : 0;
1023 }
1024 if (maxSize.x > 0 || maxSize.y > 0)
1025 {
1026 hints_mask |= GDK_HINT_MAX_SIZE;
1027 hints.max_width = maxSize.x > 0 ? maxSize.x : INT_MAX;
1028 hints.max_height = maxSize.y > 0 ? maxSize.y : INT_MAX;
1029 }
1030 if (incW > 0 || incH > 0)
1031 {
1032 hints_mask |= GDK_HINT_RESIZE_INC;
1033 hints.width_inc = incW > 0 ? incW : 1;
1034 hints.height_inc = incH > 0 ? incH : 1;
1035 }
1036 gtk_window_set_geometry_hints(
1037 (GtkWindow*)m_widget, NULL, &hints, (GdkWindowHints)hints_mask);
1038 }
1039
1040
1041 void wxTopLevelWindowGTK::GtkOnSize()
1042 {
1043 // avoid recursions
1044 if (m_resizing) return;
1045 m_resizing = true;
1046
1047 if ( m_wxwindow == NULL ) return;
1048
1049 /* wxMDIChildFrame derives from wxFrame but it _is_ a wxWindow as it uses
1050 wxWindow::Create to create it's GTK equivalent. m_mainWidget is only
1051 set in wxFrame::Create so it is used to check what kind of frame we
1052 have here. if m_mainWidget is NULL it is a wxMDIChildFrame and so we
1053 skip the part which handles m_frameMenuBar, m_frameToolBar and (most
1054 importantly) m_mainWidget */
1055
1056 int minWidth = GetMinWidth(),
1057 minHeight = GetMinHeight(),
1058 maxWidth = GetMaxWidth(),
1059 maxHeight = GetMaxHeight();
1060
1061 #ifdef __WXGPE__
1062 // GPE's window manager doesn't like size hints
1063 // at all, esp. when the user has to use the
1064 // virtual keyboard.
1065 minWidth = -1;
1066 minHeight = -1;
1067 maxWidth = -1;
1068 maxHeight = -1;
1069 #endif
1070
1071 if ((minWidth != -1) && (m_width < minWidth)) m_width = minWidth;
1072 if ((minHeight != -1) && (m_height < minHeight)) m_height = minHeight;
1073 if ((maxWidth != -1) && (m_width > maxWidth)) m_width = maxWidth;
1074 if ((maxHeight != -1) && (m_height > maxHeight)) m_height = maxHeight;
1075
1076 if (m_mainWidget)
1077 {
1078 // m_mainWidget holds the menubar, the toolbar and the client area,
1079 // which is represented by m_wxwindow.
1080 int client_x = m_miniEdge;
1081 int client_y = m_miniEdge + m_miniTitle;
1082 int client_w = m_width - 2*m_miniEdge;
1083 int client_h = m_height - 2*m_miniEdge - m_miniTitle;
1084 if (client_w < 0)
1085 client_w = 0;
1086 if (client_h < 0)
1087 client_h = 0;
1088
1089 // Let the parent perform the resize
1090 gtk_pizza_set_size( GTK_PIZZA(m_mainWidget),
1091 m_wxwindow,
1092 client_x, client_y, client_w, client_h );
1093 }
1094 else
1095 {
1096 // If there is no m_mainWidget between m_widget and m_wxwindow there
1097 // is no need to set the size or position of m_wxwindow.
1098 }
1099
1100 m_sizeSet = true;
1101
1102 // send size event to frame
1103 wxSizeEvent event( wxSize(m_width,m_height), GetId() );
1104 event.SetEventObject( this );
1105 GetEventHandler()->ProcessEvent( event );
1106
1107 m_resizing = false;
1108 }
1109
1110 void wxTopLevelWindowGTK::OnInternalIdle()
1111 {
1112 if (!m_sizeSet && GTK_WIDGET_REALIZED(m_wxwindow))
1113 {
1114 GtkOnSize();
1115
1116 // we'll come back later
1117 if (g_isIdle)
1118 wxapp_install_idle_handler();
1119 return;
1120 }
1121
1122 // set the focus if not done yet and if we can already do it
1123 if ( GTK_WIDGET_REALIZED(m_wxwindow) )
1124 {
1125 if ( g_delayedFocus &&
1126 wxGetTopLevelParent((wxWindow*)g_delayedFocus) == this )
1127 {
1128 wxLogTrace(_T("focus"),
1129 _T("Setting focus from wxTLW::OnIdle() to %s(%s)"),
1130 g_delayedFocus->GetClassInfo()->GetClassName(),
1131 g_delayedFocus->GetLabel().c_str());
1132
1133 g_delayedFocus->SetFocus();
1134 g_delayedFocus = NULL;
1135 }
1136 }
1137
1138 wxWindow::OnInternalIdle();
1139
1140 // Synthetize activate events.
1141 if ( g_sendActivateEvent != -1 )
1142 {
1143 bool activate = g_sendActivateEvent != 0;
1144
1145 // if (!activate) wxPrintf( wxT("de") );
1146 // wxPrintf( wxT("activate\n") );
1147
1148 // do it only once
1149 g_sendActivateEvent = -1;
1150
1151 wxTheApp->SetActive(activate, (wxWindow *)g_lastActiveFrame);
1152 }
1153 }
1154
1155 // ----------------------------------------------------------------------------
1156 // frame title/icon
1157 // ----------------------------------------------------------------------------
1158
1159 void wxTopLevelWindowGTK::SetTitle( const wxString &title )
1160 {
1161 wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
1162
1163 if ( title == m_title )
1164 return;
1165
1166 m_title = title;
1167
1168 gtk_window_set_title( GTK_WINDOW(m_widget), wxGTK_CONV( title ) );
1169 }
1170
1171 void wxTopLevelWindowGTK::SetIcon( const wxIcon &icon )
1172 {
1173 SetIcons( wxIconBundle( icon ) );
1174 }
1175
1176 void wxTopLevelWindowGTK::SetIcons( const wxIconBundle &icons )
1177 {
1178 wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
1179
1180 wxTopLevelWindowBase::SetIcons( icons );
1181
1182 GList *list = NULL;
1183 size_t max = icons.m_icons.GetCount();
1184
1185 for (size_t i = 0; i < max; i++)
1186 {
1187 if (icons.m_icons[i].Ok())
1188 {
1189 list = g_list_prepend(list, icons.m_icons[i].GetPixbuf());
1190 }
1191 }
1192 gtk_window_set_icon_list(GTK_WINDOW(m_widget), list);
1193 g_list_free(list);
1194 }
1195
1196 // ----------------------------------------------------------------------------
1197 // frame state: maximized/iconized/normal
1198 // ----------------------------------------------------------------------------
1199
1200 void wxTopLevelWindowGTK::Maximize(bool maximize)
1201 {
1202 if (maximize)
1203 gtk_window_maximize( GTK_WINDOW( m_widget ) );
1204 else
1205 gtk_window_unmaximize( GTK_WINDOW( m_widget ) );
1206 }
1207
1208 bool wxTopLevelWindowGTK::IsMaximized() const
1209 {
1210 if(!m_widget->window)
1211 return false;
1212
1213 return gdk_window_get_state(m_widget->window) & GDK_WINDOW_STATE_MAXIMIZED;
1214 }
1215
1216 void wxTopLevelWindowGTK::Restore()
1217 {
1218 // "Present" seems similar enough to "restore"
1219 gtk_window_present( GTK_WINDOW( m_widget ) );
1220 }
1221
1222 void wxTopLevelWindowGTK::Iconize( bool iconize )
1223 {
1224 if (iconize)
1225 gtk_window_iconify( GTK_WINDOW( m_widget ) );
1226 else
1227 gtk_window_deiconify( GTK_WINDOW( m_widget ) );
1228 }
1229
1230 bool wxTopLevelWindowGTK::IsIconized() const
1231 {
1232 return m_isIconized;
1233 }
1234
1235 void wxTopLevelWindowGTK::SetIconizeState(bool iconize)
1236 {
1237 if ( iconize != m_isIconized )
1238 {
1239 m_isIconized = iconize;
1240 (void)SendIconizeEvent(iconize);
1241 }
1242 }
1243
1244 void wxTopLevelWindowGTK::AddGrab()
1245 {
1246 if (!m_grabbed)
1247 {
1248 m_grabbed = true;
1249 gtk_grab_add( m_widget );
1250 wxEventLoop().Run();
1251 gtk_grab_remove( m_widget );
1252 }
1253 }
1254
1255 void wxTopLevelWindowGTK::RemoveGrab()
1256 {
1257 if (m_grabbed)
1258 {
1259 gtk_main_quit();
1260 m_grabbed = false;
1261 }
1262 }
1263
1264
1265 // helper
1266 static bool do_shape_combine_region(GdkWindow* window, const wxRegion& region)
1267 {
1268 if (window)
1269 {
1270 if (region.IsEmpty())
1271 {
1272 gdk_window_shape_combine_mask(window, NULL, 0, 0);
1273 }
1274 else
1275 {
1276 gdk_window_shape_combine_region(window, region.GetRegion(), 0, 0);
1277 return true;
1278 }
1279 }
1280 return false;
1281 }
1282
1283
1284 bool wxTopLevelWindowGTK::SetShape(const wxRegion& region)
1285 {
1286 wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), false,
1287 _T("Shaped windows must be created with the wxFRAME_SHAPED style."));
1288
1289 GdkWindow *window = NULL;
1290 if (m_wxwindow)
1291 {
1292 window = GTK_PIZZA(m_wxwindow)->bin_window;
1293 do_shape_combine_region(window, region);
1294 }
1295 window = m_widget->window;
1296 return do_shape_combine_region(window, region);
1297 }
1298
1299 bool wxTopLevelWindowGTK::IsActive()
1300 {
1301 return (this == (wxTopLevelWindowGTK*)g_activeFrame);
1302 }
1303
1304 void wxTopLevelWindowGTK::RequestUserAttention(int flags)
1305 {
1306 bool new_hint_value = false;
1307
1308 // FIXME: This is a workaround to focus handling problem
1309 // If RequestUserAttention is called for example right after a wxSleep, OnInternalIdle hasn't
1310 // yet been processed, and the internal focus system is not up to date yet.
1311 // wxYieldIfNeeded ensures the processing of it, but can have unwanted side effects - MR
1312 ::wxYieldIfNeeded();
1313
1314 if(m_urgency_hint >= 0)
1315 g_source_remove(m_urgency_hint);
1316
1317 m_urgency_hint = -2;
1318
1319 if( GTK_WIDGET_REALIZED(m_widget) && !IsActive() )
1320 {
1321 new_hint_value = true;
1322
1323 if (flags & wxUSER_ATTENTION_INFO)
1324 {
1325 m_urgency_hint = g_timeout_add(5000, (GSourceFunc)gtk_frame_urgency_timer_callback, this);
1326 } else {
1327 m_urgency_hint = -1;
1328 }
1329 }
1330
1331 #if GTK_CHECK_VERSION(2,7,0)
1332 if(!gtk_check_version(2,7,0))
1333 gtk_window_set_urgency_hint(GTK_WINDOW( m_widget ), new_hint_value);
1334 else
1335 #endif
1336 wxgtk_window_set_urgency_hint(GTK_WINDOW( m_widget ), new_hint_value);
1337 }
1338
1339 void wxTopLevelWindowGTK::SetWindowStyleFlag( long style )
1340 {
1341 #if defined(__WXGTK24__) || GTK_CHECK_VERSION(2,2,0)
1342 // Store which styles were changed
1343 long styleChanges = style ^ m_windowStyle;
1344 #endif
1345
1346 // Process wxWindow styles. This also updates the internal variable
1347 // Therefore m_windowStyle bits carry now the _new_ style values
1348 wxWindow::SetWindowStyleFlag(style);
1349
1350 // just return for now if widget does not exist yet
1351 if (!m_widget)
1352 return;
1353
1354 #ifdef __WXGTK24__
1355 if ( (styleChanges & wxSTAY_ON_TOP) && !gtk_check_version(2,4,0) )
1356 gtk_window_set_keep_above(GTK_WINDOW(m_widget), m_windowStyle & wxSTAY_ON_TOP);
1357 #endif // GTK+ 2.4
1358 #if GTK_CHECK_VERSION(2,2,0)
1359 if ( (styleChanges & wxFRAME_NO_TASKBAR) && !gtk_check_version(2,2,0) )
1360 {
1361 gtk_window_set_skip_taskbar_hint(GTK_WINDOW(m_widget), m_windowStyle & wxFRAME_NO_TASKBAR);
1362 }
1363 #endif // GTK+ 2.2
1364 }
1365
1366 #include <X11/Xlib.h>
1367
1368 /* Get the X Window between child and the root window.
1369 This should usually be the WM managed XID */
1370 static Window wxGetTopmostWindowX11(Display *dpy, Window child)
1371 {
1372 Window root, parent;
1373 Window* children;
1374 unsigned int nchildren;
1375
1376 XQueryTree(dpy, child, &root, &parent, &children, &nchildren);
1377 XFree(children);
1378
1379 while (parent != root) {
1380 child = parent;
1381 XQueryTree(dpy, child, &root, &parent, &children, &nchildren);
1382 XFree(children);
1383 }
1384
1385 return child;
1386 }
1387
1388 bool wxTopLevelWindowGTK::SetTransparent(wxByte alpha)
1389 {
1390 if (!m_widget || !m_widget->window)
1391 return false;
1392
1393 Display* dpy = GDK_WINDOW_XDISPLAY (m_widget->window);
1394 // We need to get the X Window that has the root window as the immediate parent
1395 // and m_widget->window as a child. This should be the X Window that the WM manages and
1396 // from which the opacity property is checked from.
1397 Window win = wxGetTopmostWindowX11(dpy, GDK_WINDOW_XID (m_widget->window));
1398
1399 unsigned int opacity = alpha * 0x1010101;
1400
1401 // Using pure Xlib to not have a GTK version check mess due to gtk2.0 not having GdkDisplay
1402 if (alpha == 0xff)
1403 XDeleteProperty(dpy, win, XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False));
1404 else
1405 XChangeProperty(dpy, win, XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False),
1406 XA_CARDINAL, 32, PropModeReplace,
1407 (unsigned char *) &opacity, 1L);
1408 XSync(dpy, False);
1409 return true;
1410 }
1411
1412 bool wxTopLevelWindowGTK::CanSetTransparent()
1413 {
1414 #if GTK_CHECK_VERSION(2,10,0)
1415 if (!gtk_check_version(2,10,0))
1416 {
1417 return (gtk_widget_is_composited (m_widget));
1418 }
1419 else
1420 #endif // In case of lower versions than gtk+-2.10.0 we could look for _NET_WM_CM_Sn ourselves
1421 {
1422 return false;
1423 }
1424
1425 #if 0 // Don't be optimistic here for the sake of wxAUI
1426 int opcode, event, error;
1427 // Check for the existence of a RGBA visual instead?
1428 return XQueryExtension(gdk_x11_get_default_xdisplay (),
1429 "Composite", &opcode, &event, &error);
1430 #endif
1431 }