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fixing iterator comparison
[wxWidgets.git] / src / gtk / toplevel.cpp
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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
62int wxOpenModalDialogsCount = 0;
63
64// the frame that is currently active (i.e. its child has focus). It is
65// used to generate wxActivateEvents
66static wxTopLevelWindowGTK *g_activeFrame = NULL;
67static 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
73static int g_sendActivateEvent = -1;
74
75//-----------------------------------------------------------------------------
76// RequestUserAttention related functions
77//-----------------------------------------------------------------------------
78
79extern "C" {
80static 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
101static 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
119extern "C" {
120static 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
178extern "C" {
179static
180gboolean 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
211extern "C" {
212static void
213size_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
242extern "C" {
243static
244void 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
258extern "C" {
259static gboolean
260gtk_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
277extern "C" {
278static gboolean
279gtk_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
306extern "C" {
307static void
308gtk_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
335extern "C" {
336static gboolean
337gtk_frame_map_callback( GtkWidget*,
338 GdkEvent * WXUNUSED(event),
339 wxTopLevelWindow *win )
340{
341 const bool wasIconized = win->IsIconized();
342 if (wasIconized)
343 {
344 // Because GetClientSize() returns (0,0) when IsIconized() is true,
345 // a size event must be generated, just in case GetClientSize() was
346 // called while iconized. This specifically happens when restoring a
347 // tlw that was "rolled up" with some WMs.
348 // Queue a resize rather than sending size event directly to allow
349 // children to be made visible first.
350 win->m_oldClientWidth = 0;
351 gtk_widget_queue_resize(win->m_wxwindow);
352 }
353 // it is possible for m_isShown to be false here, see bug #9909
354 if (win->wxWindowBase::Show(true))
355 {
356 wxShowEvent eventShow(win->GetId(), true);
357 eventShow.SetEventObject(win);
358 win->GetEventHandler()->ProcessEvent(eventShow);
359 }
360
361#if GTK_CHECK_VERSION(2,6,0)
362 if (!gtk_check_version(2,6,0))
363 {
364 // restore focus-on-map setting in case ShowWithoutActivating() was called
365 gtk_window_set_focus_on_map(GTK_WINDOW(win->m_widget), true);
366 }
367#endif // GTK+ 2.6+
368
369 return false;
370}
371}
372
373//-----------------------------------------------------------------------------
374// "window-state-event" from m_widget
375//-----------------------------------------------------------------------------
376
377extern "C" {
378static gboolean
379gtk_frame_window_state_callback( GtkWidget* WXUNUSED(widget),
380 GdkEventWindowState *event,
381 wxTopLevelWindow *win )
382{
383 if (event->changed_mask & GDK_WINDOW_STATE_ICONIFIED)
384 win->SetIconizeState((event->new_window_state & GDK_WINDOW_STATE_ICONIFIED) != 0);
385
386 return false;
387}
388}
389
390//-----------------------------------------------------------------------------
391
392bool wxGetFrameExtents(GdkWindow* window, int* left, int* right, int* top, int* bottom)
393{
394 static GdkAtom property = gdk_atom_intern("_NET_FRAME_EXTENTS", false);
395 Atom xproperty = gdk_x11_atom_to_xatom_for_display(
396 gdk_drawable_get_display(window), property);
397 Atom type;
398 int format;
399 gulong nitems, bytes_after;
400 guchar* data;
401 Status status = XGetWindowProperty(
402 gdk_x11_drawable_get_xdisplay(window),
403 gdk_x11_drawable_get_xid(window),
404 xproperty,
405 0, 4, false, XA_CARDINAL,
406 &type, &format, &nitems, &bytes_after, &data);
407 const bool success = status == Success && data && nitems == 4;
408 if (success)
409 {
410 long* p = (long*)data;
411 if (left) *left = int(p[0]);
412 if (right) *right = int(p[1]);
413 if (top) *top = int(p[2]);
414 if (bottom) *bottom = int(p[3]);
415 }
416 if (data)
417 XFree(data);
418 return success;
419}
420
421//-----------------------------------------------------------------------------
422// "property_notify_event" from m_widget
423//-----------------------------------------------------------------------------
424
425extern "C" {
426static gboolean property_notify_event(
427 GtkWidget*, GdkEventProperty* event, wxTopLevelWindowGTK* win)
428{
429 // Watch for changes to _NET_FRAME_EXTENTS property
430 static GdkAtom property = gdk_atom_intern("_NET_FRAME_EXTENTS", false);
431 if (event->state == GDK_PROPERTY_NEW_VALUE && event->atom == property)
432 {
433 wxSize decorSize = win->m_decorSize;
434 int left, right, top, bottom;
435 if (wxGetFrameExtents(event->window, &left, &right, &top, &bottom))
436 decorSize.Set(left + right, top + bottom);
437
438 win->GTKUpdateDecorSize(decorSize);
439 }
440 return false;
441}
442}
443
444// ----------------------------------------------------------------------------
445// wxTopLevelWindowGTK creation
446// ----------------------------------------------------------------------------
447
448void wxTopLevelWindowGTK::Init()
449{
450 m_mainWidget = NULL;
451 m_isIconized = false;
452 m_fsIsShowing = false;
453 m_themeEnabled = true;
454 m_gdkDecor =
455 m_gdkFunc = 0;
456 m_grabbed = false;
457 m_deferShow = true;
458 m_deferShowAllowed = true;
459 m_updateDecorSize = true;
460
461 m_urgency_hint = -2;
462}
463
464bool wxTopLevelWindowGTK::Create( wxWindow *parent,
465 wxWindowID id,
466 const wxString& title,
467 const wxPoint& pos,
468 const wxSize& sizeOrig,
469 long style,
470 const wxString &name )
471{
472 // always create a frame of some reasonable, even if arbitrary, size (at
473 // least for MSW compatibility)
474 wxSize size = sizeOrig;
475 size.x = WidthDefault(size.x);
476 size.y = HeightDefault(size.y);
477
478 wxTopLevelWindows.Append( this );
479
480 if (!PreCreation( parent, pos, size ) ||
481 !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
482 {
483 wxFAIL_MSG( wxT("wxTopLevelWindowGTK creation failed") );
484 return false;
485 }
486
487 m_title = title;
488
489 // NB: m_widget may be !=NULL if it was created by derived class' Create,
490 // e.g. in wxTaskBarIconAreaGTK
491 if (m_widget == NULL)
492 {
493#if wxUSE_LIBHILDON || wxUSE_LIBHILDON2
494 // we must create HildonWindow and not a normal GtkWindow as the latter
495 // doesn't look correctly in Maemo environment and it must also be
496 // registered with the main program object
497 m_widget = hildon_window_new();
498 hildon_program_add_window(wxTheApp->GetHildonProgram(),
499 HILDON_WINDOW(m_widget));
500#else // !wxUSE_LIBHILDON || !wxUSE_LIBHILDON2
501 m_widget = gtk_window_new(GTK_WINDOW_TOPLEVEL);
502 if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)
503 {
504 // Tell WM that this is a dialog window and make it center
505 // on parent by default (this is what GtkDialog ctor does):
506 gtk_window_set_type_hint(GTK_WINDOW(m_widget),
507 GDK_WINDOW_TYPE_HINT_DIALOG);
508 gtk_window_set_position(GTK_WINDOW(m_widget),
509 GTK_WIN_POS_CENTER_ON_PARENT);
510 }
511 else
512 {
513 if (style & wxFRAME_TOOL_WINDOW)
514 {
515 gtk_window_set_type_hint(GTK_WINDOW(m_widget),
516 GDK_WINDOW_TYPE_HINT_UTILITY);
517
518 // On some WMs, like KDE, a TOOL_WINDOW will still show
519 // on the taskbar, but on Gnome a TOOL_WINDOW will not.
520 // For consistency between WMs and with Windows, we
521 // should set the NO_TASKBAR flag which will apply
522 // the set_skip_taskbar_hint if it is available,
523 // ensuring no taskbar entry will appear.
524 style |= wxFRAME_NO_TASKBAR;
525 }
526 }
527#endif // wxUSE_LIBHILDON || wxUSE_LIBHILDON2/!wxUSE_LIBHILDON || !wxUSE_LIBHILDON2
528
529 g_object_ref(m_widget);
530 }
531
532 wxWindow *topParent = wxGetTopLevelParent(m_parent);
533 if (topParent && (((GTK_IS_WINDOW(topParent->m_widget)) &&
534 (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)) ||
535 (style & wxFRAME_FLOAT_ON_PARENT)))
536 {
537 gtk_window_set_transient_for( GTK_WINDOW(m_widget),
538 GTK_WINDOW(topParent->m_widget) );
539 }
540
541 if (style & wxFRAME_NO_TASKBAR)
542 {
543 gtk_window_set_skip_taskbar_hint(GTK_WINDOW(m_widget), TRUE);
544 }
545
546 if (style & wxSTAY_ON_TOP)
547 {
548 gtk_window_set_keep_above(GTK_WINDOW(m_widget), TRUE);
549 }
550 if (style & wxMAXIMIZE)
551 gtk_window_maximize(GTK_WINDOW(m_widget));
552
553#if 0
554 if (!name.empty())
555 gtk_window_set_role( GTK_WINDOW(m_widget), wxGTK_CONV( name ) );
556#endif
557
558 gtk_window_set_title( GTK_WINDOW(m_widget), wxGTK_CONV( title ) );
559 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
560
561 g_signal_connect (m_widget, "delete_event",
562 G_CALLBACK (gtk_frame_delete_callback), this);
563
564 // m_mainWidget is a GtkVBox, holding the bars and client area (m_wxwindow)
565 m_mainWidget = gtk_vbox_new(false, 0);
566 gtk_widget_show( m_mainWidget );
567 GTK_WIDGET_UNSET_FLAGS( m_mainWidget, GTK_CAN_FOCUS );
568 gtk_container_add( GTK_CONTAINER(m_widget), m_mainWidget );
569
570 // m_wxwindow is the client area
571 m_wxwindow = wxPizza::New();
572 gtk_widget_show( m_wxwindow );
573 gtk_container_add( GTK_CONTAINER(m_mainWidget), m_wxwindow );
574
575 // we donm't allow the frame to get the focus as otherwise
576 // the frame will grab it at arbitrary focus changes
577 GTK_WIDGET_UNSET_FLAGS( m_wxwindow, GTK_CAN_FOCUS );
578
579 if (m_parent) m_parent->AddChild( this );
580
581 g_signal_connect(m_wxwindow, "size_allocate",
582 G_CALLBACK(size_allocate), this);
583
584 g_signal_connect (m_widget, "size_request",
585 G_CALLBACK (wxgtk_tlw_size_request_callback), this);
586 PostCreation();
587
588 if ((m_x != -1) || (m_y != -1))
589 gtk_widget_set_uposition( m_widget, m_x, m_y );
590
591 // we cannot set MWM hints and icons before the widget has
592 // been realized, so we do this directly after realization
593 g_signal_connect (m_widget, "realize",
594 G_CALLBACK (gtk_frame_realized_callback), this);
595
596 // for some reported size corrections
597 g_signal_connect (m_widget, "map_event",
598 G_CALLBACK (gtk_frame_map_callback), this);
599
600 // for iconized state
601 g_signal_connect (m_widget, "window_state_event",
602 G_CALLBACK (gtk_frame_window_state_callback), this);
603
604
605 // for wxMoveEvent
606 g_signal_connect (m_widget, "configure_event",
607 G_CALLBACK (gtk_frame_configure_callback), this);
608
609 // activation
610 g_signal_connect_after (m_widget, "focus_in_event",
611 G_CALLBACK (gtk_frame_focus_in_callback), this);
612 g_signal_connect_after (m_widget, "focus_out_event",
613 G_CALLBACK (gtk_frame_focus_out_callback), this);
614
615 gtk_widget_add_events(m_widget, GDK_PROPERTY_CHANGE_MASK);
616 g_signal_connect(m_widget, "property_notify_event",
617 G_CALLBACK(property_notify_event), this);
618
619 // translate wx decorations styles into Motif WM hints (they are recognized
620 // by other WMs as well)
621
622 // always enable moving the window as we have no separate flag for enabling
623 // it
624 m_gdkFunc = GDK_FUNC_MOVE;
625
626 if ( style & wxCLOSE_BOX )
627 m_gdkFunc |= GDK_FUNC_CLOSE;
628
629 if ( style & wxMINIMIZE_BOX )
630 m_gdkFunc |= GDK_FUNC_MINIMIZE;
631
632 if ( style & wxMAXIMIZE_BOX )
633 m_gdkFunc |= GDK_FUNC_MAXIMIZE;
634
635 if ( (style & wxSIMPLE_BORDER) || (style & wxNO_BORDER) )
636 {
637 m_gdkDecor = 0;
638 }
639 else // have border
640 {
641 m_gdkDecor = GDK_DECOR_BORDER;
642
643 if ( style & wxCAPTION )
644 m_gdkDecor |= GDK_DECOR_TITLE;
645
646 if ( style & wxSYSTEM_MENU )
647 m_gdkDecor |= GDK_DECOR_MENU;
648
649 if ( style & wxMINIMIZE_BOX )
650 m_gdkDecor |= GDK_DECOR_MINIMIZE;
651
652 if ( style & wxMAXIMIZE_BOX )
653 m_gdkDecor |= GDK_DECOR_MAXIMIZE;
654
655 if ( style & wxRESIZE_BORDER )
656 {
657 m_gdkFunc |= GDK_FUNC_RESIZE;
658 m_gdkDecor |= GDK_DECOR_RESIZEH;
659 }
660 }
661
662 m_decorSize = GetCachedDecorSize();
663 int w, h;
664 GTKDoGetSize(&w, &h);
665 gtk_window_set_default_size(GTK_WINDOW(m_widget), w, h);
666
667 return true;
668}
669
670wxTopLevelWindowGTK::~wxTopLevelWindowGTK()
671{
672#if wxUSE_LIBHILDON || wxUSE_LIBHILDON2
673 // it can also be a (standard) dialog
674 if ( HILDON_IS_WINDOW(m_widget) )
675 {
676 hildon_program_remove_window(wxTheApp->GetHildonProgram(),
677 HILDON_WINDOW(m_widget));
678 }
679#endif // wxUSE_LIBHILDON || wxUSE_LIBHILDON2
680
681 if (m_grabbed)
682 {
683 wxFAIL_MSG(wxT("Window still grabbed"));
684 RemoveGrab();
685 }
686
687 SendDestroyEvent();
688
689 // it may also be GtkScrolledWindow in the case of an MDI child
690 if (GTK_IS_WINDOW(m_widget))
691 {
692 gtk_window_set_focus( GTK_WINDOW(m_widget), NULL );
693 }
694
695 if (g_activeFrame == this)
696 g_activeFrame = NULL;
697 if (g_lastActiveFrame == this)
698 g_lastActiveFrame = NULL;
699}
700
701bool wxTopLevelWindowGTK::EnableCloseButton( bool enable )
702{
703 if (enable)
704 m_gdkFunc |= GDK_FUNC_CLOSE;
705 else
706 m_gdkFunc &= ~GDK_FUNC_CLOSE;
707
708 if (GTK_WIDGET_REALIZED(m_widget) && (m_widget->window))
709 gdk_window_set_functions( m_widget->window, (GdkWMFunction)m_gdkFunc );
710
711 return true;
712}
713
714bool wxTopLevelWindowGTK::ShowFullScreen(bool show, long)
715{
716 if (show == m_fsIsShowing)
717 return false; // return what?
718
719 m_fsIsShowing = show;
720
721 wxX11FullScreenMethod method =
722 wxGetFullScreenMethodX11((WXDisplay*)GDK_DISPLAY(),
723 (WXWindow)GDK_ROOT_WINDOW());
724
725 // NB: gtk_window_fullscreen() uses freedesktop.org's WMspec extensions
726 // to switch to fullscreen, which is not always available. We must
727 // check if WM supports the spec and use legacy methods if it
728 // doesn't.
729 if ( method == wxX11_FS_WMSPEC )
730 {
731 if (show)
732 gtk_window_fullscreen( GTK_WINDOW( m_widget ) );
733 else
734 gtk_window_unfullscreen( GTK_WINDOW( m_widget ) );
735 }
736 else
737 {
738 GdkWindow *window = m_widget->window;
739
740 if (show)
741 {
742 GetPosition( &m_fsSaveFrame.x, &m_fsSaveFrame.y );
743 GetSize( &m_fsSaveFrame.width, &m_fsSaveFrame.height );
744
745 int screen_width,screen_height;
746 wxDisplaySize( &screen_width, &screen_height );
747
748 gint client_x, client_y, root_x, root_y;
749 gint width, height;
750
751 m_fsSaveGdkFunc = m_gdkFunc;
752 m_fsSaveGdkDecor = m_gdkDecor;
753 m_gdkFunc = m_gdkDecor = 0;
754 gdk_window_set_decorations(window, (GdkWMDecoration)0);
755 gdk_window_set_functions(window, (GdkWMFunction)0);
756
757 gdk_window_get_origin (m_widget->window, &root_x, &root_y);
758 gdk_window_get_geometry (m_widget->window, &client_x, &client_y,
759 &width, &height, NULL);
760
761 gdk_window_move_resize (m_widget->window, -client_x, -client_y,
762 screen_width + 1, screen_height + 1);
763
764 wxSetFullScreenStateX11((WXDisplay*)GDK_DISPLAY(),
765 (WXWindow)GDK_ROOT_WINDOW(),
766 (WXWindow)GDK_WINDOW_XWINDOW(window),
767 show, &m_fsSaveFrame, method);
768 }
769 else // hide
770 {
771 m_gdkFunc = m_fsSaveGdkFunc;
772 m_gdkDecor = m_fsSaveGdkDecor;
773 gdk_window_set_decorations(window, (GdkWMDecoration)m_gdkDecor);
774 gdk_window_set_functions(window, (GdkWMFunction)m_gdkFunc);
775
776 wxSetFullScreenStateX11((WXDisplay*)GDK_DISPLAY(),
777 (WXWindow)GDK_ROOT_WINDOW(),
778 (WXWindow)GDK_WINDOW_XWINDOW(window),
779 show, &m_fsSaveFrame, method);
780
781 SetSize(m_fsSaveFrame.x, m_fsSaveFrame.y,
782 m_fsSaveFrame.width, m_fsSaveFrame.height);
783 }
784 }
785
786 // documented behaviour is to show the window if it's still hidden when
787 // showing it full screen
788 if (show)
789 Show();
790
791 return true;
792}
793
794// ----------------------------------------------------------------------------
795// overridden wxWindow methods
796// ----------------------------------------------------------------------------
797
798void wxTopLevelWindowGTK::Refresh( bool WXUNUSED(eraseBackground), const wxRect *WXUNUSED(rect) )
799{
800 wxCHECK_RET( m_widget, wxT("invalid frame") );
801
802 gtk_widget_queue_draw( m_widget );
803
804 if (m_wxwindow && m_wxwindow->window)
805 gdk_window_invalidate_rect( m_wxwindow->window, NULL, TRUE );
806}
807
808bool wxTopLevelWindowGTK::Show( bool show )
809{
810 wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
811
812 bool deferShow = show && !m_isShown && m_deferShow;
813 if (deferShow)
814 {
815 deferShow = m_deferShowAllowed && !GTK_WIDGET_REALIZED(m_widget);
816 if (deferShow)
817 {
818 deferShow = g_signal_handler_find(m_widget,
819 GSignalMatchType(G_SIGNAL_MATCH_ID | G_SIGNAL_MATCH_DATA),
820 g_signal_lookup("property_notify_event", GTK_TYPE_WIDGET),
821 0, NULL, NULL, this) != 0;
822 }
823 GdkScreen* screen = NULL;
824 if (deferShow)
825 {
826 screen = gtk_widget_get_screen(m_widget);
827 GdkAtom atom = gdk_atom_intern("_NET_REQUEST_FRAME_EXTENTS", false);
828 deferShow = gdk_x11_screen_supports_net_wm_hint(screen, atom) != 0;
829 // If _NET_REQUEST_FRAME_EXTENTS not supported, don't allow changes
830 // to m_decorSize, it breaks saving/restoring window size with
831 // GetSize()/SetSize() because it makes window bigger between each
832 // restore and save.
833 m_updateDecorSize = deferShow;
834 }
835 if (deferShow)
836 {
837 // Fluxbox support for _NET_REQUEST_FRAME_EXTENTS is broken
838 const char* name = gdk_x11_screen_get_window_manager_name(screen);
839 deferShow = strcmp(name, "Fluxbox") != 0;
840 m_updateDecorSize = deferShow;
841 }
842
843 m_deferShow = deferShow;
844 }
845 if (deferShow)
846 {
847 // Initial show. If WM supports _NET_REQUEST_FRAME_EXTENTS, defer
848 // calling gtk_widget_show() until _NET_FRAME_EXTENTS property
849 // notification is received, so correct frame extents are known.
850 // This allows resizing m_widget to keep the overall size in sync with
851 // what wxWidgets expects it to be without an obvious change in the
852 // window size immediately after it becomes visible.
853
854 // Realize m_widget, so m_widget->window can be used. Realizing normally
855 // causes the widget tree to be size_allocated, which generates size
856 // events in the wrong order. However, the size_allocates will not be
857 // done if the allocation is not the default (1,1).
858 const int alloc_width = m_widget->allocation.width;
859 if (alloc_width == 1)
860 m_widget->allocation.width = 2;
861 gtk_widget_realize(m_widget);
862 if (alloc_width == 1)
863 m_widget->allocation.width = 1;
864
865 // send _NET_REQUEST_FRAME_EXTENTS
866 XClientMessageEvent xevent;
867 memset(&xevent, 0, sizeof(xevent));
868 xevent.type = ClientMessage;
869 xevent.window = gdk_x11_drawable_get_xid(m_widget->window);
870 xevent.message_type = gdk_x11_atom_to_xatom_for_display(
871 gdk_drawable_get_display(m_widget->window),
872 gdk_atom_intern("_NET_REQUEST_FRAME_EXTENTS", false));
873 xevent.format = 32;
874 Display* display = gdk_x11_drawable_get_xdisplay(m_widget->window);
875 XSendEvent(display, DefaultRootWindow(display), false,
876 SubstructureNotifyMask | SubstructureRedirectMask,
877 (XEvent*)&xevent);
878
879 // defer calling gtk_widget_show()
880 m_isShown = true;
881 return true;
882 }
883
884 if (show && !GTK_WIDGET_REALIZED(m_widget))
885 {
886 // size_allocate signals occur in reverse order (bottom to top).
887 // Things work better if the initial wxSizeEvents are sent (from the
888 // top down), before the initial size_allocate signals occur.
889 wxSizeEvent event(GetSize(), GetId());
890 event.SetEventObject(this);
891 HandleWindowEvent(event);
892 }
893
894 bool change = base_type::Show(show);
895
896 if (change && !show)
897 {
898 // make sure window has a non-default position, so when it is shown
899 // again, it won't be repositioned by WM as if it were a new window
900 // Note that this must be done _after_ the window is hidden.
901 gtk_window_move((GtkWindow*)m_widget, m_x, m_y);
902 }
903
904 return change;
905}
906
907void wxTopLevelWindowGTK::ShowWithoutActivating()
908{
909 if (!m_isShown)
910 {
911#if GTK_CHECK_VERSION(2,6,0)
912 if (!gtk_check_version(2,6,0))
913 gtk_window_set_focus_on_map(GTK_WINDOW(m_widget), false);
914#endif // GTK+ 2.6+
915
916 Show(true);
917 }
918}
919
920void wxTopLevelWindowGTK::Raise()
921{
922 gtk_window_present( GTK_WINDOW( m_widget ) );
923}
924
925void wxTopLevelWindowGTK::DoMoveWindow(int WXUNUSED(x), int WXUNUSED(y), int WXUNUSED(width), int WXUNUSED(height) )
926{
927 wxFAIL_MSG( wxT("DoMoveWindow called for wxTopLevelWindowGTK") );
928}
929
930// ----------------------------------------------------------------------------
931// window geometry
932// ----------------------------------------------------------------------------
933
934void wxTopLevelWindowGTK::GTKDoGetSize(int *width, int *height) const
935{
936 wxSize size(m_width, m_height);
937 size -= m_decorSize;
938 if (size.x < 0) size.x = 0;
939 if (size.y < 0) size.y = 0;
940#if wxUSE_LIBHILDON2
941 if (width) {
942 if (size.x == 720)
943 *width = 696;
944 else
945 *width = size.x;
946 }
947 if (height) {
948 if (size.y == 420)
949 *height = 396;
950 else if (size.y == 270)
951 *height = 246;
952 else
953 *height = size.y;
954 }
955#else // wxUSE_LIBHILDON2
956 if (width) *width = size.x;
957 if (height) *height = size.y;
958#endif // wxUSE_LIBHILDON2 /!wxUSE_LIBHILDON2
959}
960
961void wxTopLevelWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags )
962{
963 wxCHECK_RET( m_widget, wxT("invalid frame") );
964
965 m_deferShowAllowed = true;
966
967 // deal with the position first
968 int old_x = m_x;
969 int old_y = m_y;
970
971 if ( !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
972 {
973 // -1 means "use existing" unless the flag above is specified
974 if ( x != -1 )
975 m_x = x;
976 if ( y != -1 )
977 m_y = y;
978 }
979 else // wxSIZE_ALLOW_MINUS_ONE
980 {
981 m_x = x;
982 m_y = y;
983 }
984
985 if ( m_x != old_x || m_y != old_y )
986 {
987 gtk_window_move( GTK_WINDOW(m_widget), m_x, m_y );
988 }
989
990 const wxSize oldSize(m_width, m_height);
991 if (width >= 0)
992 m_width = width;
993 if (height >= 0)
994 m_height = height;
995 ConstrainSize();
996 if (m_width != oldSize.x || m_height != oldSize.y)
997 {
998 int w, h;
999 GTKDoGetSize(&w, &h);
1000 gtk_window_resize(GTK_WINDOW(m_widget), w, h);
1001
1002 GetClientSize(&m_oldClientWidth, &m_oldClientHeight);
1003 wxSizeEvent event(GetSize(), GetId());
1004 event.SetEventObject(this);
1005 HandleWindowEvent(event);
1006 }
1007}
1008
1009void wxTopLevelWindowGTK::DoSetClientSize(int width, int height)
1010{
1011 base_type::DoSetClientSize(width, height);
1012
1013 // Since client size is being explicitly set, don't change it later
1014 // Has to be done after calling base because it calls SetSize,
1015 // which sets this true
1016 m_deferShowAllowed = false;
1017}
1018
1019void wxTopLevelWindowGTK::DoGetClientSize( int *width, int *height ) const
1020{
1021 wxASSERT_MSG(m_widget, wxT("invalid frame"));
1022
1023 if ( IsIconized() )
1024 {
1025 // for consistency with wxMSW, client area is supposed to be empty for
1026 // the iconized windows
1027 if ( width )
1028 *width = 0;
1029 if ( height )
1030 *height = 0;
1031 }
1032 else
1033 {
1034 GTKDoGetSize(width, height);
1035 }
1036}
1037
1038void wxTopLevelWindowGTK::DoSetSizeHints( int minW, int minH,
1039 int maxW, int maxH,
1040 int incW, int incH )
1041{
1042 base_type::DoSetSizeHints(minW, minH, maxW, maxH, incW, incH);
1043
1044 const wxSize minSize = GetMinSize();
1045 const wxSize maxSize = GetMaxSize();
1046 GdkGeometry hints;
1047 int hints_mask = 0;
1048 if (minSize.x > 0 || minSize.y > 0)
1049 {
1050 hints_mask |= GDK_HINT_MIN_SIZE;
1051 hints.min_width = minSize.x - m_decorSize.x;
1052 if (hints.min_width < 0)
1053 hints.min_width = 0;
1054 hints.min_height = minSize.y - m_decorSize.y;
1055 if (hints.min_height < 0)
1056 hints.min_height = 0;
1057 }
1058 if (maxSize.x > 0 || maxSize.y > 0)
1059 {
1060 hints_mask |= GDK_HINT_MAX_SIZE;
1061 hints.max_width = maxSize.x - m_decorSize.x;
1062 if (hints.max_width < 0)
1063 hints.max_width = INT_MAX;
1064 hints.max_height = maxSize.y - m_decorSize.y;
1065 if (hints.max_height < 0)
1066 hints.max_height = INT_MAX;
1067 }
1068 if (incW > 0 || incH > 0)
1069 {
1070 hints_mask |= GDK_HINT_RESIZE_INC;
1071 hints.width_inc = incW > 0 ? incW : 1;
1072 hints.height_inc = incH > 0 ? incH : 1;
1073 }
1074 gtk_window_set_geometry_hints(
1075 (GtkWindow*)m_widget, NULL, &hints, (GdkWindowHints)hints_mask);
1076}
1077
1078void wxTopLevelWindowGTK::GTKUpdateDecorSize(const wxSize& decorSize)
1079{
1080 if (!IsMaximized() && !IsFullScreen())
1081 GetCachedDecorSize() = decorSize;
1082 if (m_updateDecorSize && m_decorSize != decorSize)
1083 {
1084 const wxSize diff = decorSize - m_decorSize;
1085 m_decorSize = decorSize;
1086 bool resized = false;
1087 if (m_deferShow)
1088 {
1089 // keep overall size unchanged by shrinking m_widget
1090 int w, h;
1091 GTKDoGetSize(&w, &h);
1092 // but not if size would be less than minimum, it won't take effect
1093 const wxSize minSize = GetMinSize();
1094 if (w >= minSize.x && h >= minSize.y)
1095 {
1096 gtk_window_resize(GTK_WINDOW(m_widget), w, h);
1097 resized = true;
1098 }
1099 }
1100 if (!resized)
1101 {
1102 // adjust overall size to match change in frame extents
1103 m_width += diff.x;
1104 m_height += diff.y;
1105 if (m_width < 0) m_width = 0;
1106 if (m_height < 0) m_height = 0;
1107 m_oldClientWidth = 0;
1108 gtk_widget_queue_resize(m_wxwindow);
1109 }
1110 }
1111 if (m_deferShow)
1112 {
1113 // gtk_widget_show() was deferred, do it now
1114 m_deferShow = false;
1115 GetClientSize(&m_oldClientWidth, &m_oldClientHeight);
1116 wxSizeEvent sizeEvent(GetSize(), GetId());
1117 sizeEvent.SetEventObject(this);
1118 HandleWindowEvent(sizeEvent);
1119
1120 gtk_widget_show(m_widget);
1121
1122 wxShowEvent showEvent(GetId(), true);
1123 showEvent.SetEventObject(this);
1124 HandleWindowEvent(showEvent);
1125 }
1126}
1127
1128wxSize& wxTopLevelWindowGTK::GetCachedDecorSize()
1129{
1130 static wxSize size[8];
1131
1132 int index = 0;
1133 // title bar
1134 if (m_gdkDecor & (GDK_DECOR_MENU | GDK_DECOR_MINIMIZE | GDK_DECOR_MAXIMIZE | GDK_DECOR_TITLE))
1135 index = 1;
1136 // border
1137 if (m_gdkDecor & GDK_DECOR_BORDER)
1138 index |= 2;
1139 // utility window decor can be different
1140 if (m_windowStyle & wxFRAME_TOOL_WINDOW)
1141 index |= 4;
1142 return size[index];
1143}
1144
1145void wxTopLevelWindowGTK::OnInternalIdle()
1146{
1147 wxWindow::OnInternalIdle();
1148
1149 // Synthetize activate events.
1150 if ( g_sendActivateEvent != -1 )
1151 {
1152 bool activate = g_sendActivateEvent != 0;
1153
1154 // if (!activate) wxPrintf( wxT("de") );
1155 // wxPrintf( wxT("activate\n") );
1156
1157 // do it only once
1158 g_sendActivateEvent = -1;
1159
1160 wxTheApp->SetActive(activate, (wxWindow *)g_lastActiveFrame);
1161 }
1162}
1163
1164// ----------------------------------------------------------------------------
1165// frame title/icon
1166// ----------------------------------------------------------------------------
1167
1168void wxTopLevelWindowGTK::SetTitle( const wxString &title )
1169{
1170 wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
1171
1172 if ( title == m_title )
1173 return;
1174
1175 m_title = title;
1176
1177 gtk_window_set_title( GTK_WINDOW(m_widget), wxGTK_CONV( title ) );
1178}
1179
1180void wxTopLevelWindowGTK::SetIcons( const wxIconBundle &icons )
1181{
1182 wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
1183
1184 base_type::SetIcons(icons);
1185
1186 // Setting icons before window is realized can cause a GTK assertion if
1187 // another TLW is realized before this one, and it has this one as it's
1188 // transient parent. The life demo exibits this problem.
1189 if (GTK_WIDGET_REALIZED(m_widget))
1190 {
1191 GList* list = NULL;
1192 for (size_t i = icons.GetIconCount(); i--;)
1193 list = g_list_prepend(list, icons.GetIconByIndex(i).GetPixbuf());
1194 gtk_window_set_icon_list(GTK_WINDOW(m_widget), list);
1195 g_list_free(list);
1196 }
1197}
1198
1199// ----------------------------------------------------------------------------
1200// frame state: maximized/iconized/normal
1201// ----------------------------------------------------------------------------
1202
1203void wxTopLevelWindowGTK::Maximize(bool maximize)
1204{
1205 if (maximize)
1206 gtk_window_maximize( GTK_WINDOW( m_widget ) );
1207 else
1208 gtk_window_unmaximize( GTK_WINDOW( m_widget ) );
1209}
1210
1211bool wxTopLevelWindowGTK::IsMaximized() const
1212{
1213 if(!m_widget->window)
1214 return false;
1215
1216 return gdk_window_get_state(m_widget->window) & GDK_WINDOW_STATE_MAXIMIZED;
1217}
1218
1219void wxTopLevelWindowGTK::Restore()
1220{
1221 // "Present" seems similar enough to "restore"
1222 gtk_window_present( GTK_WINDOW( m_widget ) );
1223}
1224
1225void wxTopLevelWindowGTK::Iconize( bool iconize )
1226{
1227 if (iconize)
1228 gtk_window_iconify( GTK_WINDOW( m_widget ) );
1229 else
1230 gtk_window_deiconify( GTK_WINDOW( m_widget ) );
1231}
1232
1233bool wxTopLevelWindowGTK::IsIconized() const
1234{
1235 return m_isIconized;
1236}
1237
1238void wxTopLevelWindowGTK::SetIconizeState(bool iconize)
1239{
1240 if ( iconize != m_isIconized )
1241 {
1242 m_isIconized = iconize;
1243 (void)SendIconizeEvent(iconize);
1244 }
1245}
1246
1247void wxTopLevelWindowGTK::AddGrab()
1248{
1249 if (!m_grabbed)
1250 {
1251 m_grabbed = true;
1252 gtk_grab_add( m_widget );
1253 wxGUIEventLoop().Run();
1254 gtk_grab_remove( m_widget );
1255 }
1256}
1257
1258void wxTopLevelWindowGTK::RemoveGrab()
1259{
1260 if (m_grabbed)
1261 {
1262 gtk_main_quit();
1263 m_grabbed = false;
1264 }
1265}
1266
1267
1268// helper
1269static bool do_shape_combine_region(GdkWindow* window, const wxRegion& region)
1270{
1271 if (window)
1272 {
1273 if (region.IsEmpty())
1274 {
1275 gdk_window_shape_combine_mask(window, NULL, 0, 0);
1276 }
1277 else
1278 {
1279 gdk_window_shape_combine_region(window, region.GetRegion(), 0, 0);
1280 return true;
1281 }
1282 }
1283 return false;
1284}
1285
1286
1287bool wxTopLevelWindowGTK::SetShape(const wxRegion& region)
1288{
1289 wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), false,
1290 wxT("Shaped windows must be created with the wxFRAME_SHAPED style."));
1291
1292 if ( GTK_WIDGET_REALIZED(m_widget) )
1293 {
1294 if ( m_wxwindow )
1295 do_shape_combine_region(m_wxwindow->window, region);
1296
1297 return do_shape_combine_region(m_widget->window, region);
1298 }
1299 else // not realized yet
1300 {
1301 // store the shape to set, it will be really set once we're realized
1302 m_shape = region;
1303
1304 // we don't know if we're going to succeed or fail, be optimistic by
1305 // default
1306 return true;
1307 }
1308}
1309
1310bool wxTopLevelWindowGTK::IsActive()
1311{
1312 return (this == (wxTopLevelWindowGTK*)g_activeFrame);
1313}
1314
1315void wxTopLevelWindowGTK::RequestUserAttention(int flags)
1316{
1317 bool new_hint_value = false;
1318
1319 // FIXME: This is a workaround to focus handling problem
1320 // If RequestUserAttention is called for example right after a wxSleep, OnInternalIdle
1321 // hasn't yet been processed, and the internal focus system is not up to date yet.
1322 // YieldFor(wxEVT_CATEGORY_UI) ensures the processing of it (hopefully it
1323 // won't have side effects) - MR
1324 wxEventLoopBase::GetActive()->YieldFor(wxEVT_CATEGORY_UI);
1325
1326 if(m_urgency_hint >= 0)
1327 g_source_remove(m_urgency_hint);
1328
1329 m_urgency_hint = -2;
1330
1331 if( GTK_WIDGET_REALIZED(m_widget) && !IsActive() )
1332 {
1333 new_hint_value = true;
1334
1335 if (flags & wxUSER_ATTENTION_INFO)
1336 {
1337 m_urgency_hint = g_timeout_add(5000, (GSourceFunc)gtk_frame_urgency_timer_callback, this);
1338 } else {
1339 m_urgency_hint = -1;
1340 }
1341 }
1342
1343#if GTK_CHECK_VERSION(2,7,0)
1344 if(!gtk_check_version(2,7,0))
1345 gtk_window_set_urgency_hint(GTK_WINDOW( m_widget ), new_hint_value);
1346 else
1347#endif
1348 wxgtk_window_set_urgency_hint(GTK_WINDOW( m_widget ), new_hint_value);
1349}
1350
1351void wxTopLevelWindowGTK::SetWindowStyleFlag( long style )
1352{
1353 // Store which styles were changed
1354 long styleChanges = style ^ m_windowStyle;
1355
1356 // Process wxWindow styles. This also updates the internal variable
1357 // Therefore m_windowStyle bits carry now the _new_ style values
1358 wxWindow::SetWindowStyleFlag(style);
1359
1360 // just return for now if widget does not exist yet
1361 if (!m_widget)
1362 return;
1363
1364 if ( styleChanges & wxSTAY_ON_TOP )
1365 {
1366 gtk_window_set_keep_above(GTK_WINDOW(m_widget),
1367 m_windowStyle & wxSTAY_ON_TOP);
1368 }
1369
1370 if ( styleChanges & wxFRAME_NO_TASKBAR )
1371 {
1372 gtk_window_set_skip_taskbar_hint(GTK_WINDOW(m_widget),
1373 m_windowStyle & wxFRAME_NO_TASKBAR);
1374 }
1375}
1376
1377/* Get the X Window between child and the root window.
1378 This should usually be the WM managed XID */
1379static Window wxGetTopmostWindowX11(Display *dpy, Window child)
1380{
1381 Window root, parent;
1382 Window* children;
1383 unsigned int nchildren;
1384
1385 XQueryTree(dpy, child, &root, &parent, &children, &nchildren);
1386 XFree(children);
1387
1388 while (parent != root) {
1389 child = parent;
1390 XQueryTree(dpy, child, &root, &parent, &children, &nchildren);
1391 XFree(children);
1392 }
1393
1394 return child;
1395}
1396
1397bool wxTopLevelWindowGTK::SetTransparent(wxByte alpha)
1398{
1399 if (!m_widget || !m_widget->window)
1400 return false;
1401
1402 Display* dpy = GDK_WINDOW_XDISPLAY (m_widget->window);
1403 // We need to get the X Window that has the root window as the immediate parent
1404 // and m_widget->window as a child. This should be the X Window that the WM manages and
1405 // from which the opacity property is checked from.
1406 Window win = wxGetTopmostWindowX11(dpy, GDK_WINDOW_XID (m_widget->window));
1407
1408
1409 // Using pure Xlib to not have a GTK version check mess due to gtk2.0 not having GdkDisplay
1410 if (alpha == 0xff)
1411 XDeleteProperty(dpy, win, XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False));
1412 else
1413 {
1414 long opacity = alpha * 0x1010101L;
1415 XChangeProperty(dpy, win, XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False),
1416 XA_CARDINAL, 32, PropModeReplace,
1417 (unsigned char *) &opacity, 1L);
1418 }
1419 XSync(dpy, False);
1420 return true;
1421}
1422
1423bool wxTopLevelWindowGTK::CanSetTransparent()
1424{
1425 // allow to override automatic detection as it's far from perfect
1426 const wxString SYSOPT_TRANSPARENT = "gtk.tlw.can-set-transparent";
1427 if ( wxSystemOptions::HasOption(SYSOPT_TRANSPARENT) )
1428 {
1429 return wxSystemOptions::GetOptionInt(SYSOPT_TRANSPARENT) != 0;
1430 }
1431
1432#if GTK_CHECK_VERSION(2,10,0)
1433 if (!gtk_check_version(2,10,0))
1434 {
1435 return (gtk_widget_is_composited (m_widget));
1436 }
1437 else
1438#endif // In case of lower versions than gtk+-2.10.0 we could look for _NET_WM_CM_Sn ourselves
1439 {
1440 return false;
1441 }
1442
1443#if 0 // Don't be optimistic here for the sake of wxAUI
1444 int opcode, event, error;
1445 // Check for the existence of a RGBA visual instead?
1446 return XQueryExtension(gdk_x11_get_default_xdisplay (),
1447 "Composite", &opcode, &event, &error);
1448#endif
1449}
wxWidgets (Impactor)