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[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 #include "wx/sysopt.h"
37
38 #include <gtk/gtk.h>
39 #include <gdk/gdkx.h>
40
41 #include "wx/gtk/private/win_gtk.h"
42
43 #include "wx/unix/utilsx11.h"
44
45 // XA_CARDINAL
46 #include <X11/Xatom.h>
47
48 #if wxUSE_LIBHILDON
49 #include <hildon-widgets/hildon-program.h>
50 #include <hildon-widgets/hildon-window.h>
51 #endif // wxUSE_LIBHILDON
52
53 #if wxUSE_LIBHILDON2
54 #include <hildon/hildon.h>
55 #endif // wxUSE_LIBHILDON2
56
57 // ----------------------------------------------------------------------------
58 // data
59 // ----------------------------------------------------------------------------
60
61 // this is incremented while a modal dialog is shown
62 int wxOpenModalDialogsCount = 0;
63
64 // the frame that is currently active (i.e. its child has focus). It is
65 // used to generate wxActivateEvents
66 static wxTopLevelWindowGTK *g_activeFrame = NULL;
67 static wxTopLevelWindowGTK *g_lastActiveFrame = NULL;
68
69 // if we detect that the app has got/lost the focus, we set this variable to
70 // either TRUE or FALSE and an activate event will be sent during the next
71 // OnIdle() call and it is reset to -1: this value means that we shouldn't
72 // send any activate events at all
73 static int g_sendActivateEvent = -1;
74
75 //-----------------------------------------------------------------------------
76 // RequestUserAttention related functions
77 //-----------------------------------------------------------------------------
78
79 extern "C" {
80 static void wxgtk_window_set_urgency_hint (GtkWindow *win,
81 gboolean setting)
82 {
83 wxASSERT_MSG( GTK_WIDGET_REALIZED(win), wxT("wxgtk_window_set_urgency_hint: GdkWindow not realized") );
84 GdkWindow *window = GTK_WIDGET(win)->window;
85 XWMHints *wm_hints;
86
87 wm_hints = XGetWMHints(GDK_WINDOW_XDISPLAY(window), GDK_WINDOW_XWINDOW(window));
88
89 if (!wm_hints)
90 wm_hints = XAllocWMHints();
91
92 if (setting)
93 wm_hints->flags |= XUrgencyHint;
94 else
95 wm_hints->flags &= ~XUrgencyHint;
96
97 XSetWMHints(GDK_WINDOW_XDISPLAY(window), GDK_WINDOW_XWINDOW(window), wm_hints);
98 XFree(wm_hints);
99 }
100
101 static gboolean gtk_frame_urgency_timer_callback( wxTopLevelWindowGTK *win )
102 {
103 #if GTK_CHECK_VERSION(2,7,0)
104 if(!gtk_check_version(2,7,0))
105 gtk_window_set_urgency_hint(GTK_WINDOW( win->m_widget ), FALSE);
106 else
107 #endif
108 wxgtk_window_set_urgency_hint(GTK_WINDOW( win->m_widget ), FALSE);
109
110 win->m_urgency_hint = -2;
111 return FALSE;
112 }
113 }
114
115 //-----------------------------------------------------------------------------
116 // "focus_in_event"
117 //-----------------------------------------------------------------------------
118
119 extern "C" {
120 static gboolean gtk_frame_focus_in_callback( GtkWidget *widget,
121 GdkEvent *WXUNUSED(event),
122 wxTopLevelWindowGTK *win )
123 {
124 switch ( g_sendActivateEvent )
125 {
126 case -1:
127 // we've got focus from outside, synthetize wxActivateEvent
128 g_sendActivateEvent = 1;
129 break;
130
131 case 0:
132 // another our window just lost focus, it was already ours before
133 // - don't send any wxActivateEvent
134 g_sendActivateEvent = -1;
135 break;
136 }
137
138 g_activeFrame = win;
139 g_lastActiveFrame = g_activeFrame;
140
141 // wxPrintf( wxT("active: %s\n"), win->GetTitle().c_str() );
142
143 // MR: wxRequestUserAttention related block
144 switch( win->m_urgency_hint )
145 {
146 default:
147 g_source_remove( win->m_urgency_hint );
148 // no break, fallthrough to remove hint too
149 case -1:
150 #if GTK_CHECK_VERSION(2,7,0)
151 if(!gtk_check_version(2,7,0))
152 gtk_window_set_urgency_hint(GTK_WINDOW( widget ), FALSE);
153 else
154 #endif
155 {
156 wxgtk_window_set_urgency_hint(GTK_WINDOW( widget ), FALSE);
157 }
158
159 win->m_urgency_hint = -2;
160 break;
161
162 case -2: break;
163 }
164
165 wxLogTrace(wxT("activate"), wxT("Activating frame %p (from focus_in)"), g_activeFrame);
166 wxActivateEvent event(wxEVT_ACTIVATE, true, g_activeFrame->GetId());
167 event.SetEventObject(g_activeFrame);
168 g_activeFrame->HandleWindowEvent(event);
169
170 return FALSE;
171 }
172 }
173
174 //-----------------------------------------------------------------------------
175 // "focus_out_event"
176 //-----------------------------------------------------------------------------
177
178 extern "C" {
179 static
180 gboolean gtk_frame_focus_out_callback(GtkWidget * WXUNUSED(widget),
181 GdkEventFocus *WXUNUSED(gdk_event),
182 wxTopLevelWindowGTK * WXUNUSED(win))
183 {
184 // if the focus goes out of our app alltogether, OnIdle() will send
185 // wxActivateEvent, otherwise gtk_window_focus_in_callback() will reset
186 // g_sendActivateEvent to -1
187 g_sendActivateEvent = 0;
188
189 // wxASSERT_MSG( (g_activeFrame == win), wxT("TLW deactivatd although it wasn't active") );
190
191 // wxPrintf( wxT("inactive: %s\n"), win->GetTitle().c_str() );
192
193 if (g_activeFrame)
194 {
195 wxLogTrace(wxT("activate"), wxT("Activating frame %p (from focus_in)"), g_activeFrame);
196 wxActivateEvent event(wxEVT_ACTIVATE, false, g_activeFrame->GetId());
197 event.SetEventObject(g_activeFrame);
198 g_activeFrame->HandleWindowEvent(event);
199
200 g_activeFrame = NULL;
201 }
202
203 return FALSE;
204 }
205 }
206
207 //-----------------------------------------------------------------------------
208 // "size_allocate" from m_wxwindow
209 //-----------------------------------------------------------------------------
210
211 extern "C" {
212 static void
213 size_allocate(GtkWidget*, GtkAllocation* alloc, wxTopLevelWindowGTK* win)
214 {
215 if (win->m_oldClientWidth != alloc->width ||
216 win->m_oldClientHeight != alloc->height)
217 {
218 win->m_oldClientWidth = alloc->width;
219 win->m_oldClientHeight = alloc->height;
220
221 wxSize size(win->m_widget->allocation.width,
222 win->m_widget->allocation.height);
223 size += win->m_decorSize;
224 win->m_width = size.x;
225 win->m_height = size.y;
226
227 if (!win->IsIconized())
228 {
229 wxSizeEvent event(size, win->GetId());
230 event.SetEventObject(win);
231 win->HandleWindowEvent(event);
232 }
233 // else the window is currently unmapped, don't generate size events
234 }
235 }
236 }
237
238 // ----------------------------------------------------------------------------
239 // "size_request"
240 // ----------------------------------------------------------------------------
241
242 extern "C" {
243 static
244 void wxgtk_tlw_size_request_callback(GtkWidget * WXUNUSED(widget),
245 GtkRequisition *requisition,
246 wxTopLevelWindowGTK *win)
247 {
248 // we must return the size of the window without WM decorations, otherwise
249 // GTK+ gets confused, so don't call just GetSize() here
250 win->GTKDoGetSize(&requisition->width, &requisition->height);
251 }
252 }
253
254 //-----------------------------------------------------------------------------
255 // "delete_event"
256 //-----------------------------------------------------------------------------
257
258 extern "C" {
259 static gboolean
260 gtk_frame_delete_callback( GtkWidget *WXUNUSED(widget),
261 GdkEvent *WXUNUSED(event),
262 wxTopLevelWindowGTK *win )
263 {
264 if (win->IsEnabled() &&
265 (wxOpenModalDialogsCount == 0 || (win->GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) ||
266 win->IsGrabbed()))
267 win->Close();
268
269 return TRUE;
270 }
271 }
272
273 //-----------------------------------------------------------------------------
274 // "configure_event"
275 //-----------------------------------------------------------------------------
276
277 extern "C" {
278 static gboolean
279 gtk_frame_configure_callback( GtkWidget* widget,
280 GdkEventConfigure *WXUNUSED(event),
281 wxTopLevelWindowGTK *win )
282 {
283 if (!win->m_hasVMT || !win->IsShown())
284 return FALSE;
285
286 wxPoint point;
287 gtk_window_get_position((GtkWindow*)widget, &point.x, &point.y);
288
289 win->m_x = point.x;
290 win->m_y = point.y;
291 wxMoveEvent mevent(point, win->GetId());
292 mevent.SetEventObject( win );
293 win->HandleWindowEvent( mevent );
294
295 return FALSE;
296 }
297 }
298
299 //-----------------------------------------------------------------------------
300 // "realize" from m_widget
301 //-----------------------------------------------------------------------------
302
303 // we cannot the WM hints and icons before the widget has been realized,
304 // so we do this directly after realization
305
306 extern "C" {
307 static void
308 gtk_frame_realized_callback( GtkWidget * WXUNUSED(widget),
309 wxTopLevelWindowGTK *win )
310 {
311 gdk_window_set_decorations(win->m_widget->window,
312 (GdkWMDecoration)win->m_gdkDecor);
313 gdk_window_set_functions(win->m_widget->window,
314 (GdkWMFunction)win->m_gdkFunc);
315
316 // GTK's shrinking/growing policy
317 if ( !(win->m_gdkFunc & GDK_FUNC_RESIZE) )
318 gtk_window_set_resizable(GTK_WINDOW(win->m_widget), FALSE);
319 else
320 gtk_window_set_policy(GTK_WINDOW(win->m_widget), 1, 1, 1);
321
322 const wxIconBundle& icons = win->GetIcons();
323 if (icons.GetIconCount())
324 win->SetIcons(icons);
325
326 if (win->HasFlag(wxFRAME_SHAPED))
327 win->SetShape(win->m_shape); // it will really set the window shape now
328 }
329 }
330
331 //-----------------------------------------------------------------------------
332 // "map_event" from m_widget
333 //-----------------------------------------------------------------------------
334
335 extern "C" {
336 static gboolean
337 gtk_frame_map_callback( GtkWidget*,
338 GdkEvent * WXUNUSED(event),
339 wxTopLevelWindow *win )
340 {
341 const bool wasIconized = win->IsIconized();
342 win->SetIconizeState(false);
343 if (wasIconized)
344 {
345 // Because GetClientSize() returns (0,0) when IsIconized() is true,
346 // a size event must be generated, just in case GetClientSize() was
347 // called while iconized. This specifically happens when restoring a
348 // tlw that was "rolled up" with some WMs.
349 // Queue a resize rather than sending size event directly to allow
350 // children to be made visible first.
351 win->m_oldClientWidth = 0;
352 gtk_widget_queue_resize(win->m_wxwindow);
353 }
354 // it is possible for m_isShown to be false here, see bug #9909
355 if (win->wxWindowBase::Show(true))
356 {
357 wxShowEvent eventShow(win->GetId(), true);
358 eventShow.SetEventObject(win);
359 win->GetEventHandler()->ProcessEvent(eventShow);
360 }
361 return false;
362 }
363 }
364
365 //-----------------------------------------------------------------------------
366 // "unmap_event" from m_widget
367 //-----------------------------------------------------------------------------
368
369 extern "C" {
370 static gboolean
371 gtk_frame_unmap_callback( GtkWidget * WXUNUSED(widget),
372 GdkEvent * WXUNUSED(event),
373 wxTopLevelWindow *win )
374 {
375 win->SetIconizeState(true);
376 return false;
377 }
378 }
379
380 //-----------------------------------------------------------------------------
381
382 bool wxGetFrameExtents(GdkWindow* window, int* left, int* right, int* top, int* bottom)
383 {
384 static GdkAtom property = gdk_atom_intern("_NET_FRAME_EXTENTS", false);
385 Atom xproperty = gdk_x11_atom_to_xatom_for_display(
386 gdk_drawable_get_display(window), property);
387 Atom type;
388 int format;
389 gulong nitems, bytes_after;
390 guchar* data;
391 Status status = XGetWindowProperty(
392 gdk_x11_drawable_get_xdisplay(window),
393 gdk_x11_drawable_get_xid(window),
394 xproperty,
395 0, 4, false, XA_CARDINAL,
396 &type, &format, &nitems, &bytes_after, &data);
397 const bool success = status == Success && data && nitems == 4;
398 if (success)
399 {
400 long* p = (long*)data;
401 if (left) *left = int(p[0]);
402 if (right) *right = int(p[1]);
403 if (top) *top = int(p[2]);
404 if (bottom) *bottom = int(p[3]);
405 }
406 if (data)
407 XFree(data);
408 return success;
409 }
410
411 //-----------------------------------------------------------------------------
412 // "property_notify_event" from m_widget
413 //-----------------------------------------------------------------------------
414
415 extern "C" {
416 static gboolean property_notify_event(
417 GtkWidget*, GdkEventProperty* event, wxTopLevelWindowGTK* win)
418 {
419 // Watch for changes to _NET_FRAME_EXTENTS property
420 static GdkAtom property = gdk_atom_intern("_NET_FRAME_EXTENTS", false);
421 if (event->state == GDK_PROPERTY_NEW_VALUE && event->atom == property)
422 {
423 wxSize decorSize = win->m_decorSize;
424 int left, right, top, bottom;
425 if (wxGetFrameExtents(event->window, &left, &right, &top, &bottom))
426 decorSize.Set(left + right, top + bottom);
427
428 win->GTKUpdateDecorSize(decorSize);
429 }
430 return false;
431 }
432 }
433
434 // ----------------------------------------------------------------------------
435 // wxTopLevelWindowGTK creation
436 // ----------------------------------------------------------------------------
437
438 void wxTopLevelWindowGTK::Init()
439 {
440 m_mainWidget = NULL;
441 m_isIconized = false;
442 m_fsIsShowing = false;
443 m_themeEnabled = true;
444 m_gdkDecor =
445 m_gdkFunc = 0;
446 m_grabbed = false;
447 m_deferShow = true;
448 m_deferShowAllowed = true;
449 m_updateDecorSize = true;
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 if (!PreCreation( parent, pos, size ) ||
471 !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
472 {
473 wxFAIL_MSG( wxT("wxTopLevelWindowGTK creation failed") );
474 return false;
475 }
476
477 m_title = title;
478
479 // NB: m_widget may be !=NULL if it was created by derived class' Create,
480 // e.g. in wxTaskBarIconAreaGTK
481 if (m_widget == NULL)
482 {
483 #if wxUSE_LIBHILDON || wxUSE_LIBHILDON2
484 // we must create HildonWindow and not a normal GtkWindow as the latter
485 // doesn't look correctly in Maemo environment and it must also be
486 // registered with the main program object
487 m_widget = hildon_window_new();
488 hildon_program_add_window(wxTheApp->GetHildonProgram(),
489 HILDON_WINDOW(m_widget));
490 #else // !wxUSE_LIBHILDON || !wxUSE_LIBHILDON2
491 m_widget = gtk_window_new(GTK_WINDOW_TOPLEVEL);
492 if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)
493 {
494 // Tell WM that this is a dialog window and make it center
495 // on parent by default (this is what GtkDialog ctor does):
496 gtk_window_set_type_hint(GTK_WINDOW(m_widget),
497 GDK_WINDOW_TYPE_HINT_DIALOG);
498 gtk_window_set_position(GTK_WINDOW(m_widget),
499 GTK_WIN_POS_CENTER_ON_PARENT);
500 }
501 else
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 // wxUSE_LIBHILDON || wxUSE_LIBHILDON2/!wxUSE_LIBHILDON || !wxUSE_LIBHILDON2
518
519 g_object_ref(m_widget);
520 }
521
522 wxWindow *topParent = wxGetTopLevelParent(m_parent);
523 if (topParent && (((GTK_IS_WINDOW(topParent->m_widget)) &&
524 (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)) ||
525 (style & wxFRAME_FLOAT_ON_PARENT)))
526 {
527 gtk_window_set_transient_for( GTK_WINDOW(m_widget),
528 GTK_WINDOW(topParent->m_widget) );
529 }
530
531 if (style & wxFRAME_NO_TASKBAR)
532 {
533 gtk_window_set_skip_taskbar_hint(GTK_WINDOW(m_widget), TRUE);
534 }
535
536 if (style & wxSTAY_ON_TOP)
537 {
538 gtk_window_set_keep_above(GTK_WINDOW(m_widget), TRUE);
539 }
540
541 #if 0
542 if (!name.empty())
543 gtk_window_set_role( GTK_WINDOW(m_widget), wxGTK_CONV( name ) );
544 #endif
545
546 gtk_window_set_title( GTK_WINDOW(m_widget), wxGTK_CONV( title ) );
547 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
548
549 g_signal_connect (m_widget, "delete_event",
550 G_CALLBACK (gtk_frame_delete_callback), this);
551
552 // m_mainWidget is a GtkVBox, holding the bars and client area (m_wxwindow)
553 m_mainWidget = gtk_vbox_new(false, 0);
554 gtk_widget_show( m_mainWidget );
555 GTK_WIDGET_UNSET_FLAGS( m_mainWidget, GTK_CAN_FOCUS );
556 gtk_container_add( GTK_CONTAINER(m_widget), m_mainWidget );
557
558 // m_wxwindow is the client area
559 m_wxwindow = wxPizza::New(0,this);
560 gtk_widget_show( m_wxwindow );
561 gtk_container_add( GTK_CONTAINER(m_mainWidget), m_wxwindow );
562
563 // we donm't allow the frame to get the focus as otherwise
564 // the frame will grab it at arbitrary focus changes
565 GTK_WIDGET_UNSET_FLAGS( m_wxwindow, GTK_CAN_FOCUS );
566
567 if (m_parent) m_parent->AddChild( this );
568
569 g_signal_connect(m_wxwindow, "size_allocate",
570 G_CALLBACK(size_allocate), this);
571
572 g_signal_connect (m_widget, "size_request",
573 G_CALLBACK (wxgtk_tlw_size_request_callback), this);
574 PostCreation();
575
576 if ((m_x != -1) || (m_y != -1))
577 gtk_widget_set_uposition( m_widget, m_x, m_y );
578
579 // we cannot set MWM hints and icons before the widget has
580 // been realized, so we do this directly after realization
581 g_signal_connect (m_widget, "realize",
582 G_CALLBACK (gtk_frame_realized_callback), this);
583
584 // map and unmap for iconized state
585 g_signal_connect (m_widget, "map_event",
586 G_CALLBACK (gtk_frame_map_callback), this);
587 g_signal_connect (m_widget, "unmap_event",
588 G_CALLBACK (gtk_frame_unmap_callback), this);
589
590 // for wxMoveEvent
591 g_signal_connect (m_widget, "configure_event",
592 G_CALLBACK (gtk_frame_configure_callback), this);
593
594 // activation
595 g_signal_connect_after (m_widget, "focus_in_event",
596 G_CALLBACK (gtk_frame_focus_in_callback), this);
597 g_signal_connect_after (m_widget, "focus_out_event",
598 G_CALLBACK (gtk_frame_focus_out_callback), this);
599
600 gtk_widget_add_events(m_widget, GDK_PROPERTY_CHANGE_MASK);
601 g_signal_connect(m_widget, "property_notify_event",
602 G_CALLBACK(property_notify_event), this);
603
604 // translate wx decorations styles into Motif WM hints (they are recognized
605 // by other WMs as well)
606
607 // always enable moving the window as we have no separate flag for enabling
608 // it
609 m_gdkFunc = GDK_FUNC_MOVE;
610
611 if ( style & wxCLOSE_BOX )
612 m_gdkFunc |= GDK_FUNC_CLOSE;
613
614 if ( style & wxMINIMIZE_BOX )
615 m_gdkFunc |= GDK_FUNC_MINIMIZE;
616
617 if ( style & wxMAXIMIZE_BOX )
618 m_gdkFunc |= GDK_FUNC_MAXIMIZE;
619
620 if ( (style & wxSIMPLE_BORDER) || (style & wxNO_BORDER) )
621 {
622 m_gdkDecor = 0;
623 }
624 else // have border
625 {
626 m_gdkDecor = GDK_DECOR_BORDER;
627
628 if ( style & wxCAPTION )
629 m_gdkDecor |= GDK_DECOR_TITLE;
630
631 if ( style & wxSYSTEM_MENU )
632 m_gdkDecor |= GDK_DECOR_MENU;
633
634 if ( style & wxMINIMIZE_BOX )
635 m_gdkDecor |= GDK_DECOR_MINIMIZE;
636
637 if ( style & wxMAXIMIZE_BOX )
638 m_gdkDecor |= GDK_DECOR_MAXIMIZE;
639
640 if ( style & wxRESIZE_BORDER )
641 {
642 m_gdkFunc |= GDK_FUNC_RESIZE;
643 m_gdkDecor |= GDK_DECOR_RESIZEH;
644 }
645 }
646
647 m_decorSize = GetCachedDecorSize();
648 int w, h;
649 GTKDoGetSize(&w, &h);
650 gtk_window_set_default_size(GTK_WINDOW(m_widget), w, h);
651
652 return true;
653 }
654
655 wxTopLevelWindowGTK::~wxTopLevelWindowGTK()
656 {
657 #if wxUSE_LIBHILDON || wxUSE_LIBHILDON2
658 // it can also be a (standard) dialog
659 if ( HILDON_IS_WINDOW(m_widget) )
660 {
661 hildon_program_remove_window(wxTheApp->GetHildonProgram(),
662 HILDON_WINDOW(m_widget));
663 }
664 #endif // wxUSE_LIBHILDON || wxUSE_LIBHILDON2
665
666 if (m_grabbed)
667 {
668 wxFAIL_MSG(wxT("Window still grabbed"));
669 RemoveGrab();
670 }
671
672 SendDestroyEvent();
673
674 // it may also be GtkScrolledWindow in the case of an MDI child
675 if (GTK_IS_WINDOW(m_widget))
676 {
677 gtk_window_set_focus( GTK_WINDOW(m_widget), NULL );
678 }
679
680 if (g_activeFrame == this)
681 g_activeFrame = NULL;
682 if (g_lastActiveFrame == this)
683 g_lastActiveFrame = NULL;
684 }
685
686 bool wxTopLevelWindowGTK::EnableCloseButton( bool enable )
687 {
688 if (enable)
689 m_gdkFunc |= GDK_FUNC_CLOSE;
690 else
691 m_gdkFunc &= ~GDK_FUNC_CLOSE;
692
693 if (GTK_WIDGET_REALIZED(m_widget) && (m_widget->window))
694 gdk_window_set_functions( m_widget->window, (GdkWMFunction)m_gdkFunc );
695
696 return true;
697 }
698
699 bool wxTopLevelWindowGTK::ShowFullScreen(bool show, long)
700 {
701 if (show == m_fsIsShowing)
702 return false; // return what?
703
704 m_fsIsShowing = show;
705
706 wxX11FullScreenMethod method =
707 wxGetFullScreenMethodX11((WXDisplay*)GDK_DISPLAY(),
708 (WXWindow)GDK_ROOT_WINDOW());
709
710 // NB: gtk_window_fullscreen() uses freedesktop.org's WMspec extensions
711 // to switch to fullscreen, which is not always available. We must
712 // check if WM supports the spec and use legacy methods if it
713 // doesn't.
714 if ( method == wxX11_FS_WMSPEC )
715 {
716 if (show)
717 gtk_window_fullscreen( GTK_WINDOW( m_widget ) );
718 else
719 gtk_window_unfullscreen( GTK_WINDOW( m_widget ) );
720 }
721 else
722 {
723 GdkWindow *window = m_widget->window;
724
725 if (show)
726 {
727 GetPosition( &m_fsSaveFrame.x, &m_fsSaveFrame.y );
728 GetSize( &m_fsSaveFrame.width, &m_fsSaveFrame.height );
729
730 int screen_width,screen_height;
731 wxDisplaySize( &screen_width, &screen_height );
732
733 gint client_x, client_y, root_x, root_y;
734 gint width, height;
735
736 m_fsSaveGdkFunc = m_gdkFunc;
737 m_fsSaveGdkDecor = m_gdkDecor;
738 m_gdkFunc = m_gdkDecor = 0;
739 gdk_window_set_decorations(window, (GdkWMDecoration)0);
740 gdk_window_set_functions(window, (GdkWMFunction)0);
741
742 gdk_window_get_origin (m_widget->window, &root_x, &root_y);
743 gdk_window_get_geometry (m_widget->window, &client_x, &client_y,
744 &width, &height, NULL);
745
746 gdk_window_move_resize (m_widget->window, -client_x, -client_y,
747 screen_width + 1, screen_height + 1);
748
749 wxSetFullScreenStateX11((WXDisplay*)GDK_DISPLAY(),
750 (WXWindow)GDK_ROOT_WINDOW(),
751 (WXWindow)GDK_WINDOW_XWINDOW(window),
752 show, &m_fsSaveFrame, method);
753 }
754 else // hide
755 {
756 m_gdkFunc = m_fsSaveGdkFunc;
757 m_gdkDecor = m_fsSaveGdkDecor;
758 gdk_window_set_decorations(window, (GdkWMDecoration)m_gdkDecor);
759 gdk_window_set_functions(window, (GdkWMFunction)m_gdkFunc);
760
761 wxSetFullScreenStateX11((WXDisplay*)GDK_DISPLAY(),
762 (WXWindow)GDK_ROOT_WINDOW(),
763 (WXWindow)GDK_WINDOW_XWINDOW(window),
764 show, &m_fsSaveFrame, method);
765
766 SetSize(m_fsSaveFrame.x, m_fsSaveFrame.y,
767 m_fsSaveFrame.width, m_fsSaveFrame.height);
768 }
769 }
770
771 // documented behaviour is to show the window if it's still hidden when
772 // showing it full screen
773 if (show)
774 Show();
775
776 return true;
777 }
778
779 // ----------------------------------------------------------------------------
780 // overridden wxWindow methods
781 // ----------------------------------------------------------------------------
782
783 void wxTopLevelWindowGTK::Refresh( bool WXUNUSED(eraseBackground), const wxRect *WXUNUSED(rect) )
784 {
785 wxCHECK_RET( m_widget, wxT("invalid frame") );
786
787 gtk_widget_queue_draw( m_widget );
788
789 if (m_wxwindow && m_wxwindow->window)
790 gdk_window_invalidate_rect( m_wxwindow->window, NULL, TRUE );
791 }
792
793 bool wxTopLevelWindowGTK::Show( bool show )
794 {
795 wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
796
797 bool deferShow = show && !m_isShown && m_deferShow;
798 if (deferShow)
799 {
800 deferShow = m_deferShowAllowed && !GTK_WIDGET_REALIZED(m_widget);
801 if (deferShow)
802 {
803 deferShow = g_signal_handler_find(m_widget,
804 GSignalMatchType(G_SIGNAL_MATCH_ID | G_SIGNAL_MATCH_DATA),
805 g_signal_lookup("property_notify_event", GTK_TYPE_WIDGET),
806 0, NULL, NULL, this) != 0;
807 }
808 GdkScreen* screen = NULL;
809 if (deferShow)
810 {
811 screen = gtk_widget_get_screen(m_widget);
812 GdkAtom atom = gdk_atom_intern("_NET_REQUEST_FRAME_EXTENTS", false);
813 deferShow = gdk_x11_screen_supports_net_wm_hint(screen, atom) != 0;
814 // If _NET_REQUEST_FRAME_EXTENTS not supported, don't allow changes
815 // to m_decorSize, it breaks saving/restoring window size with
816 // GetSize()/SetSize() because it makes window bigger between each
817 // restore and save.
818 m_updateDecorSize = deferShow;
819 }
820 if (deferShow)
821 {
822 // Fluxbox support for _NET_REQUEST_FRAME_EXTENTS is broken
823 const char* name = gdk_x11_screen_get_window_manager_name(screen);
824 deferShow = strcmp(name, "Fluxbox") != 0;
825 m_updateDecorSize = deferShow;
826 }
827
828 m_deferShow = deferShow;
829 }
830 if (deferShow)
831 {
832 // Initial show. If WM supports _NET_REQUEST_FRAME_EXTENTS, defer
833 // calling gtk_widget_show() until _NET_FRAME_EXTENTS property
834 // notification is received, so correct frame extents are known.
835 // This allows resizing m_widget to keep the overall size in sync with
836 // what wxWidgets expects it to be without an obvious change in the
837 // window size immediately after it becomes visible.
838
839 // Realize m_widget, so m_widget->window can be used. Realizing normally
840 // causes the widget tree to be size_allocated, which generates size
841 // events in the wrong order. However, the size_allocates will not be
842 // done if the allocation is not the default (1,1).
843 const int alloc_width = m_widget->allocation.width;
844 if (alloc_width == 1)
845 m_widget->allocation.width = 2;
846 gtk_widget_realize(m_widget);
847 if (alloc_width == 1)
848 m_widget->allocation.width = 1;
849
850 // send _NET_REQUEST_FRAME_EXTENTS
851 XClientMessageEvent xevent;
852 memset(&xevent, 0, sizeof(xevent));
853 xevent.type = ClientMessage;
854 xevent.window = gdk_x11_drawable_get_xid(m_widget->window);
855 xevent.message_type = gdk_x11_atom_to_xatom_for_display(
856 gdk_drawable_get_display(m_widget->window),
857 gdk_atom_intern("_NET_REQUEST_FRAME_EXTENTS", false));
858 xevent.format = 32;
859 Display* display = gdk_x11_drawable_get_xdisplay(m_widget->window);
860 XSendEvent(display, DefaultRootWindow(display), false,
861 SubstructureNotifyMask | SubstructureRedirectMask,
862 (XEvent*)&xevent);
863
864 // defer calling gtk_widget_show()
865 m_isShown = true;
866 return true;
867 }
868
869 if (show && !GTK_WIDGET_REALIZED(m_widget))
870 {
871 // size_allocate signals occur in reverse order (bottom to top).
872 // Things work better if the initial wxSizeEvents are sent (from the
873 // top down), before the initial size_allocate signals occur.
874 wxSizeEvent event(GetSize(), GetId());
875 event.SetEventObject(this);
876 HandleWindowEvent(event);
877 }
878
879 bool change = wxTopLevelWindowBase::Show(show);
880
881 if (change && !show)
882 {
883 // make sure window has a non-default position, so when it is shown
884 // again, it won't be repositioned by WM as if it were a new window
885 // Note that this must be done _after_ the window is hidden.
886 gtk_window_move((GtkWindow*)m_widget, m_x, m_y);
887 }
888
889 return change;
890 }
891
892 void wxTopLevelWindowGTK::ShowWithoutActivating()
893 {
894 gtk_window_set_focus_on_map(GTK_WINDOW(m_widget), false);
895 Show(true);
896 }
897
898 void wxTopLevelWindowGTK::Raise()
899 {
900 gtk_window_present( GTK_WINDOW( m_widget ) );
901 }
902
903 void wxTopLevelWindowGTK::DoMoveWindow(int WXUNUSED(x), int WXUNUSED(y), int WXUNUSED(width), int WXUNUSED(height) )
904 {
905 wxFAIL_MSG( wxT("DoMoveWindow called for wxTopLevelWindowGTK") );
906 }
907
908 // ----------------------------------------------------------------------------
909 // window geometry
910 // ----------------------------------------------------------------------------
911
912 void wxTopLevelWindowGTK::GTKDoGetSize(int *width, int *height) const
913 {
914 wxSize size(m_width, m_height);
915 size -= m_decorSize;
916 if (size.x < 0) size.x = 0;
917 if (size.y < 0) size.y = 0;
918 #if wxUSE_LIBHILDON2
919 if (width) {
920 if (size.x == 720)
921 *width = 696;
922 else
923 *width = size.x;
924 }
925 if (height) {
926 if (size.y == 420)
927 *height = 396;
928 else if (size.y == 270)
929 *height = 246;
930 else
931 *height = size.y;
932 }
933 #else // wxUSE_LIBHILDON2
934 if (width) *width = size.x;
935 if (height) *height = size.y;
936 #endif // wxUSE_LIBHILDON2 /!wxUSE_LIBHILDON2
937 }
938
939 void wxTopLevelWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags )
940 {
941 wxCHECK_RET( m_widget, wxT("invalid frame") );
942
943 m_deferShowAllowed = true;
944
945 // deal with the position first
946 int old_x = m_x;
947 int old_y = m_y;
948
949 if ( !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
950 {
951 // -1 means "use existing" unless the flag above is specified
952 if ( x != -1 )
953 m_x = x;
954 if ( y != -1 )
955 m_y = y;
956 }
957 else // wxSIZE_ALLOW_MINUS_ONE
958 {
959 m_x = x;
960 m_y = y;
961 }
962
963 if ( m_x != old_x || m_y != old_y )
964 {
965 gtk_window_move( GTK_WINDOW(m_widget), m_x, m_y );
966 }
967
968 const wxSize oldSize(m_width, m_height);
969 if (width >= 0)
970 m_width = width;
971 if (height >= 0)
972 m_height = height;
973 ConstrainSize();
974 if (m_width != oldSize.x || m_height != oldSize.y)
975 {
976 int w, h;
977 GTKDoGetSize(&w, &h);
978 gtk_window_resize(GTK_WINDOW(m_widget), w, h);
979
980 GetClientSize(&m_oldClientWidth, &m_oldClientHeight);
981 wxSizeEvent event(GetSize(), GetId());
982 event.SetEventObject(this);
983 HandleWindowEvent(event);
984 }
985 }
986
987 void wxTopLevelWindowGTK::DoSetClientSize(int width, int height)
988 {
989 // Since client size is being explicitly set, don't change it later
990 m_deferShowAllowed = false;
991
992 wxTopLevelWindowBase::DoSetClientSize(width, height);
993 }
994
995 void wxTopLevelWindowGTK::DoGetClientSize( int *width, int *height ) const
996 {
997 wxASSERT_MSG(m_widget, wxT("invalid frame"));
998
999 if ( IsIconized() )
1000 {
1001 // for consistency with wxMSW, client area is supposed to be empty for
1002 // the iconized windows
1003 if ( width )
1004 *width = 0;
1005 if ( height )
1006 *height = 0;
1007 }
1008 else
1009 {
1010 GTKDoGetSize(width, height);
1011 }
1012 }
1013
1014 void wxTopLevelWindowGTK::DoSetSizeHints( int minW, int minH,
1015 int maxW, int maxH,
1016 int incW, int incH )
1017 {
1018 wxTopLevelWindowBase::DoSetSizeHints( minW, minH, maxW, maxH, incW, incH );
1019
1020 const wxSize minSize = GetMinSize();
1021 const wxSize maxSize = GetMaxSize();
1022 GdkGeometry hints;
1023 int hints_mask = 0;
1024 if (minSize.x > 0 || minSize.y > 0)
1025 {
1026 hints_mask |= GDK_HINT_MIN_SIZE;
1027 hints.min_width = minSize.x - m_decorSize.x;
1028 if (hints.min_width < 0)
1029 hints.min_width = 0;
1030 hints.min_height = minSize.y - m_decorSize.y;
1031 if (hints.min_height < 0)
1032 hints.min_height = 0;
1033 }
1034 if (maxSize.x > 0 || maxSize.y > 0)
1035 {
1036 hints_mask |= GDK_HINT_MAX_SIZE;
1037 hints.max_width = maxSize.x - m_decorSize.x;
1038 if (hints.max_width < 0)
1039 hints.max_width = INT_MAX;
1040 hints.max_height = maxSize.y - m_decorSize.y;
1041 if (hints.max_height < 0)
1042 hints.max_height = INT_MAX;
1043 }
1044 if (incW > 0 || incH > 0)
1045 {
1046 hints_mask |= GDK_HINT_RESIZE_INC;
1047 hints.width_inc = incW > 0 ? incW : 1;
1048 hints.height_inc = incH > 0 ? incH : 1;
1049 }
1050 gtk_window_set_geometry_hints(
1051 (GtkWindow*)m_widget, NULL, &hints, (GdkWindowHints)hints_mask);
1052 }
1053
1054 void wxTopLevelWindowGTK::GTKUpdateDecorSize(const wxSize& decorSize)
1055 {
1056 if (!IsMaximized() && !IsFullScreen())
1057 GetCachedDecorSize() = decorSize;
1058 if (m_updateDecorSize && m_decorSize != decorSize)
1059 {
1060 const wxSize diff = decorSize - m_decorSize;
1061 m_decorSize = decorSize;
1062 bool resized = false;
1063 if (m_deferShow)
1064 {
1065 // keep overall size unchanged by shrinking m_widget
1066 int w, h;
1067 GTKDoGetSize(&w, &h);
1068 // but not if size would be less than minimum, it won't take effect
1069 const wxSize minSize = GetMinSize();
1070 if (w >= minSize.x && h >= minSize.y)
1071 {
1072 gtk_window_resize(GTK_WINDOW(m_widget), w, h);
1073 resized = true;
1074 }
1075 }
1076 if (!resized)
1077 {
1078 // adjust overall size to match change in frame extents
1079 m_width += diff.x;
1080 m_height += diff.y;
1081 if (m_width < 0) m_width = 0;
1082 if (m_height < 0) m_height = 0;
1083 m_oldClientWidth = 0;
1084 gtk_widget_queue_resize(m_wxwindow);
1085 }
1086 }
1087 if (m_deferShow)
1088 {
1089 // gtk_widget_show() was deferred, do it now
1090 m_deferShow = false;
1091 GetClientSize(&m_oldClientWidth, &m_oldClientHeight);
1092 wxSizeEvent sizeEvent(GetSize(), GetId());
1093 sizeEvent.SetEventObject(this);
1094 HandleWindowEvent(sizeEvent);
1095
1096 gtk_widget_show(m_widget);
1097
1098 wxShowEvent showEvent(GetId(), true);
1099 showEvent.SetEventObject(this);
1100 HandleWindowEvent(showEvent);
1101 }
1102 }
1103
1104 wxSize& wxTopLevelWindowGTK::GetCachedDecorSize()
1105 {
1106 static wxSize size[8];
1107
1108 int index = 0;
1109 // title bar
1110 if (m_gdkDecor & (GDK_DECOR_MENU | GDK_DECOR_MINIMIZE | GDK_DECOR_MAXIMIZE | GDK_DECOR_TITLE))
1111 index = 1;
1112 // border
1113 if (m_gdkDecor & GDK_DECOR_BORDER)
1114 index |= 2;
1115 // utility window decor can be different
1116 if (m_windowStyle & wxFRAME_TOOL_WINDOW)
1117 index |= 4;
1118 return size[index];
1119 }
1120
1121 void wxTopLevelWindowGTK::OnInternalIdle()
1122 {
1123 wxWindow::OnInternalIdle();
1124
1125 // Synthetize activate events.
1126 if ( g_sendActivateEvent != -1 )
1127 {
1128 bool activate = g_sendActivateEvent != 0;
1129
1130 // if (!activate) wxPrintf( wxT("de") );
1131 // wxPrintf( wxT("activate\n") );
1132
1133 // do it only once
1134 g_sendActivateEvent = -1;
1135
1136 wxTheApp->SetActive(activate, (wxWindow *)g_lastActiveFrame);
1137 }
1138 }
1139
1140 // ----------------------------------------------------------------------------
1141 // frame title/icon
1142 // ----------------------------------------------------------------------------
1143
1144 void wxTopLevelWindowGTK::SetTitle( const wxString &title )
1145 {
1146 wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
1147
1148 if ( title == m_title )
1149 return;
1150
1151 m_title = title;
1152
1153 gtk_window_set_title( GTK_WINDOW(m_widget), wxGTK_CONV( title ) );
1154 }
1155
1156 void wxTopLevelWindowGTK::SetIcons( const wxIconBundle &icons )
1157 {
1158 wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
1159
1160 wxTopLevelWindowBase::SetIcons( icons );
1161
1162 // Setting icons before window is realized can cause a GTK assertion if
1163 // another TLW is realized before this one, and it has this one as it's
1164 // transient parent. The life demo exibits this problem.
1165 if (GTK_WIDGET_REALIZED(m_widget))
1166 {
1167 GList* list = NULL;
1168 for (size_t i = icons.GetIconCount(); i--;)
1169 list = g_list_prepend(list, icons.GetIconByIndex(i).GetPixbuf());
1170 gtk_window_set_icon_list(GTK_WINDOW(m_widget), list);
1171 g_list_free(list);
1172 }
1173 }
1174
1175 // ----------------------------------------------------------------------------
1176 // frame state: maximized/iconized/normal
1177 // ----------------------------------------------------------------------------
1178
1179 void wxTopLevelWindowGTK::Maximize(bool maximize)
1180 {
1181 if (maximize)
1182 gtk_window_maximize( GTK_WINDOW( m_widget ) );
1183 else
1184 gtk_window_unmaximize( GTK_WINDOW( m_widget ) );
1185 }
1186
1187 bool wxTopLevelWindowGTK::IsMaximized() const
1188 {
1189 if(!m_widget->window)
1190 return false;
1191
1192 return gdk_window_get_state(m_widget->window) & GDK_WINDOW_STATE_MAXIMIZED;
1193 }
1194
1195 void wxTopLevelWindowGTK::Restore()
1196 {
1197 // "Present" seems similar enough to "restore"
1198 gtk_window_present( GTK_WINDOW( m_widget ) );
1199 }
1200
1201 void wxTopLevelWindowGTK::Iconize( bool iconize )
1202 {
1203 if (iconize)
1204 gtk_window_iconify( GTK_WINDOW( m_widget ) );
1205 else
1206 gtk_window_deiconify( GTK_WINDOW( m_widget ) );
1207 }
1208
1209 bool wxTopLevelWindowGTK::IsIconized() const
1210 {
1211 return m_isIconized;
1212 }
1213
1214 void wxTopLevelWindowGTK::SetIconizeState(bool iconize)
1215 {
1216 if ( iconize != m_isIconized )
1217 {
1218 m_isIconized = iconize;
1219 (void)SendIconizeEvent(iconize);
1220 }
1221 }
1222
1223 void wxTopLevelWindowGTK::AddGrab()
1224 {
1225 if (!m_grabbed)
1226 {
1227 m_grabbed = true;
1228 gtk_grab_add( m_widget );
1229 wxGUIEventLoop().Run();
1230 gtk_grab_remove( m_widget );
1231 }
1232 }
1233
1234 void wxTopLevelWindowGTK::RemoveGrab()
1235 {
1236 if (m_grabbed)
1237 {
1238 gtk_main_quit();
1239 m_grabbed = false;
1240 }
1241 }
1242
1243
1244 // helper
1245 static bool do_shape_combine_region(GdkWindow* window, const wxRegion& region)
1246 {
1247 if (window)
1248 {
1249 if (region.IsEmpty())
1250 {
1251 gdk_window_shape_combine_mask(window, NULL, 0, 0);
1252 }
1253 else
1254 {
1255 gdk_window_shape_combine_region(window, region.GetRegion(), 0, 0);
1256 return true;
1257 }
1258 }
1259 return false;
1260 }
1261
1262
1263 bool wxTopLevelWindowGTK::SetShape(const wxRegion& region)
1264 {
1265 wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), false,
1266 wxT("Shaped windows must be created with the wxFRAME_SHAPED style."));
1267
1268 if ( GTK_WIDGET_REALIZED(m_widget) )
1269 {
1270 if ( m_wxwindow )
1271 do_shape_combine_region(m_wxwindow->window, region);
1272
1273 return do_shape_combine_region(m_widget->window, region);
1274 }
1275 else // not realized yet
1276 {
1277 // store the shape to set, it will be really set once we're realized
1278 m_shape = region;
1279
1280 // we don't know if we're going to succeed or fail, be optimistic by
1281 // default
1282 return true;
1283 }
1284 }
1285
1286 bool wxTopLevelWindowGTK::IsActive()
1287 {
1288 return (this == (wxTopLevelWindowGTK*)g_activeFrame);
1289 }
1290
1291 void wxTopLevelWindowGTK::RequestUserAttention(int flags)
1292 {
1293 bool new_hint_value = false;
1294
1295 // FIXME: This is a workaround to focus handling problem
1296 // If RequestUserAttention is called for example right after a wxSleep, OnInternalIdle
1297 // hasn't yet been processed, and the internal focus system is not up to date yet.
1298 // YieldFor(wxEVT_CATEGORY_UI) ensures the processing of it (hopefully it
1299 // won't have side effects) - MR
1300 wxEventLoopBase::GetActive()->YieldFor(wxEVT_CATEGORY_UI);
1301
1302 if(m_urgency_hint >= 0)
1303 g_source_remove(m_urgency_hint);
1304
1305 m_urgency_hint = -2;
1306
1307 if( GTK_WIDGET_REALIZED(m_widget) && !IsActive() )
1308 {
1309 new_hint_value = true;
1310
1311 if (flags & wxUSER_ATTENTION_INFO)
1312 {
1313 m_urgency_hint = g_timeout_add(5000, (GSourceFunc)gtk_frame_urgency_timer_callback, this);
1314 } else {
1315 m_urgency_hint = -1;
1316 }
1317 }
1318
1319 #if GTK_CHECK_VERSION(2,7,0)
1320 if(!gtk_check_version(2,7,0))
1321 gtk_window_set_urgency_hint(GTK_WINDOW( m_widget ), new_hint_value);
1322 else
1323 #endif
1324 wxgtk_window_set_urgency_hint(GTK_WINDOW( m_widget ), new_hint_value);
1325 }
1326
1327 void wxTopLevelWindowGTK::SetWindowStyleFlag( long style )
1328 {
1329 // Store which styles were changed
1330 long styleChanges = style ^ m_windowStyle;
1331
1332 // Process wxWindow styles. This also updates the internal variable
1333 // Therefore m_windowStyle bits carry now the _new_ style values
1334 wxWindow::SetWindowStyleFlag(style);
1335
1336 // just return for now if widget does not exist yet
1337 if (!m_widget)
1338 return;
1339
1340 if ( styleChanges & wxSTAY_ON_TOP )
1341 {
1342 gtk_window_set_keep_above(GTK_WINDOW(m_widget),
1343 m_windowStyle & wxSTAY_ON_TOP);
1344 }
1345
1346 if ( styleChanges & wxFRAME_NO_TASKBAR )
1347 {
1348 gtk_window_set_skip_taskbar_hint(GTK_WINDOW(m_widget),
1349 m_windowStyle & wxFRAME_NO_TASKBAR);
1350 }
1351 }
1352
1353 /* Get the X Window between child and the root window.
1354 This should usually be the WM managed XID */
1355 static Window wxGetTopmostWindowX11(Display *dpy, Window child)
1356 {
1357 Window root, parent;
1358 Window* children;
1359 unsigned int nchildren;
1360
1361 XQueryTree(dpy, child, &root, &parent, &children, &nchildren);
1362 XFree(children);
1363
1364 while (parent != root) {
1365 child = parent;
1366 XQueryTree(dpy, child, &root, &parent, &children, &nchildren);
1367 XFree(children);
1368 }
1369
1370 return child;
1371 }
1372
1373 bool wxTopLevelWindowGTK::SetTransparent(wxByte alpha)
1374 {
1375 if (!m_widget || !m_widget->window)
1376 return false;
1377
1378 Display* dpy = GDK_WINDOW_XDISPLAY (m_widget->window);
1379 // We need to get the X Window that has the root window as the immediate parent
1380 // and m_widget->window as a child. This should be the X Window that the WM manages and
1381 // from which the opacity property is checked from.
1382 Window win = wxGetTopmostWindowX11(dpy, GDK_WINDOW_XID (m_widget->window));
1383
1384
1385 // Using pure Xlib to not have a GTK version check mess due to gtk2.0 not having GdkDisplay
1386 if (alpha == 0xff)
1387 XDeleteProperty(dpy, win, XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False));
1388 else
1389 {
1390 long opacity = alpha * 0x1010101L;
1391 XChangeProperty(dpy, win, XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False),
1392 XA_CARDINAL, 32, PropModeReplace,
1393 (unsigned char *) &opacity, 1L);
1394 }
1395 XSync(dpy, False);
1396 return true;
1397 }
1398
1399 bool wxTopLevelWindowGTK::CanSetTransparent()
1400 {
1401 // allow to override automatic detection as it's far from perfect
1402 static const wxChar *SYSOPT_TRANSPARENT = wxT("gtk.tlw.can-set-transparent");
1403 if ( wxSystemOptions::HasOption(SYSOPT_TRANSPARENT) )
1404 {
1405 return wxSystemOptions::GetOptionInt(SYSOPT_TRANSPARENT) != 0;
1406 }
1407
1408 #if GTK_CHECK_VERSION(2,10,0)
1409 if (!gtk_check_version(2,10,0))
1410 {
1411 return (gtk_widget_is_composited (m_widget));
1412 }
1413 else
1414 #endif // In case of lower versions than gtk+-2.10.0 we could look for _NET_WM_CM_Sn ourselves
1415 {
1416 return false;
1417 }
1418
1419 #if 0 // Don't be optimistic here for the sake of wxAUI
1420 int opcode, event, error;
1421 // Check for the existence of a RGBA visual instead?
1422 return XQueryExtension(gdk_x11_get_default_xdisplay (),
1423 "Composite", &opcode, &event, &error);
1424 #endif
1425 }
wxWidgets (Impactor)