1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/gtk/toplevel.cpp
4 // Author: Robert Roebling
6 // Copyright: (c) 1998 Robert Roebling
7 // Licence: wxWindows licence
8 /////////////////////////////////////////////////////////////////////////////
10 // For compilers that support precompilation, includes "wx.h".
11 #include "wx/wxprec.h"
13 // ============================================================================
15 // ============================================================================
17 // ----------------------------------------------------------------------------
19 // ----------------------------------------------------------------------------
22 #define XIconifyWindow XICONIFYWINDOW
25 #include "wx/toplevel.h"
34 #include "wx/evtloop.h"
35 #include "wx/sysopt.h"
38 #ifdef GDK_WINDOWING_X11
40 #include <X11/Xatom.h> // XA_CARDINAL
41 #include "wx/unix/utilsx11.h"
44 #include "wx/gtk/private.h"
45 #include "wx/gtk/private/gtk2-compat.h"
46 #include "wx/gtk/private/win_gtk.h"
49 #include <hildon-widgets/hildon-program.h>
50 #include <hildon-widgets/hildon-window.h>
51 #endif // wxUSE_LIBHILDON
54 #include <hildon/hildon.h>
55 #endif // wxUSE_LIBHILDON2
57 // ----------------------------------------------------------------------------
59 // ----------------------------------------------------------------------------
61 // this is incremented while a modal dialog is shown
62 int wxOpenModalDialogsCount
= 0;
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
;
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;
75 // Whether _NET_REQUEST_FRAME_EXTENTS support is working
76 // 0 == not tested yet, 1 == working, 2 == broken
77 static int gs_requestFrameExtentsStatus
;
79 //-----------------------------------------------------------------------------
80 // RequestUserAttention related functions
81 //-----------------------------------------------------------------------------
84 static void wxgtk_window_set_urgency_hint (GtkWindow
*win
,
87 #if GTK_CHECK_VERSION(2,7,0)
88 if (gtk_check_version(2,7,0) == NULL
)
89 gtk_window_set_urgency_hint(win
, setting
);
93 #ifdef GDK_WINDOWING_X11
94 GdkWindow
* window
= gtk_widget_get_window(GTK_WIDGET(win
));
95 wxCHECK_RET(window
, "wxgtk_window_set_urgency_hint: GdkWindow not realized");
97 Display
* dpy
= GDK_WINDOW_XDISPLAY(window
);
98 Window xid
= GDK_WINDOW_XID(window
);
99 XWMHints
* wm_hints
= XGetWMHints(dpy
, xid
);
102 wm_hints
= XAllocWMHints();
105 wm_hints
->flags
|= XUrgencyHint
;
107 wm_hints
->flags
&= ~XUrgencyHint
;
109 XSetWMHints(dpy
, xid
, wm_hints
);
111 #endif // GDK_WINDOWING_X11
114 #define gtk_window_set_urgency_hint wxgtk_window_set_urgency_hint
118 static gboolean
gtk_frame_urgency_timer_callback( wxTopLevelWindowGTK
*win
)
120 gtk_window_set_urgency_hint(GTK_WINDOW(win
->m_widget
), false);
122 win
->m_urgency_hint
= -2;
127 //-----------------------------------------------------------------------------
129 //-----------------------------------------------------------------------------
132 static gboolean
gtk_frame_focus_in_callback( GtkWidget
*widget
,
133 GdkEvent
*WXUNUSED(event
),
134 wxTopLevelWindowGTK
*win
)
136 switch ( g_sendActivateEvent
)
139 // we've got focus from outside, synthetize wxActivateEvent
140 g_sendActivateEvent
= 1;
144 // another our window just lost focus, it was already ours before
145 // - don't send any wxActivateEvent
146 g_sendActivateEvent
= -1;
151 g_lastActiveFrame
= g_activeFrame
;
153 // wxPrintf( wxT("active: %s\n"), win->GetTitle().c_str() );
155 // MR: wxRequestUserAttention related block
156 switch( win
->m_urgency_hint
)
159 g_source_remove( win
->m_urgency_hint
);
160 // no break, fallthrough to remove hint too
162 gtk_window_set_urgency_hint(GTK_WINDOW(widget
), false);
163 win
->m_urgency_hint
= -2;
169 wxLogTrace(wxT("activate"), wxT("Activating frame %p (from focus_in)"), g_activeFrame
);
170 wxActivateEvent
event(wxEVT_ACTIVATE
, true, g_activeFrame
->GetId());
171 event
.SetEventObject(g_activeFrame
);
172 g_activeFrame
->HandleWindowEvent(event
);
178 //-----------------------------------------------------------------------------
180 //-----------------------------------------------------------------------------
184 gboolean
gtk_frame_focus_out_callback(GtkWidget
* WXUNUSED(widget
),
185 GdkEventFocus
*WXUNUSED(gdk_event
),
186 wxTopLevelWindowGTK
* WXUNUSED(win
))
188 // if the focus goes out of our app altogether, OnIdle() will send
189 // wxActivateEvent, otherwise gtk_window_focus_in_callback() will reset
190 // g_sendActivateEvent to -1
191 g_sendActivateEvent
= 0;
193 // wxASSERT_MSG( (g_activeFrame == win), wxT("TLW deactivatd although it wasn't active") );
195 // wxPrintf( wxT("inactive: %s\n"), win->GetTitle().c_str() );
199 wxLogTrace(wxT("activate"), wxT("Activating frame %p (from focus_in)"), g_activeFrame
);
200 wxActivateEvent
event(wxEVT_ACTIVATE
, false, g_activeFrame
->GetId());
201 event
.SetEventObject(g_activeFrame
);
202 g_activeFrame
->HandleWindowEvent(event
);
204 g_activeFrame
= NULL
;
211 // ----------------------------------------------------------------------------
213 // ----------------------------------------------------------------------------
217 wxgtk_tlw_key_press_event(GtkWidget
*widget
, GdkEventKey
*event
)
219 GtkWindow
* const window
= GTK_WINDOW(widget
);
221 // By default GTK+ checks for the menu accelerators in this (top level)
222 // window first and then propagates the event to the currently focused
223 // child from where it bubbles up the window parent chain. In wxWidgets,
224 // however, we want the child window to have the event first but still
225 // handle it as an accelerator if it's not processed there, so we need to
226 // customize this by reversing the order of the steps done in the standard
227 // GTK+ gtk_window_key_press_event() handler.
229 if ( gtk_window_propagate_key_event(window
, event
) )
232 if ( gtk_window_activate_key(window
, event
) )
235 GtkObjectClass
* parent_class
= >K_WIDGET_GET_CLASS(widget
)->parent_class
;
236 if ( GTK_WIDGET_CLASS(parent_class
)->key_press_event(widget
, event
) )
243 //-----------------------------------------------------------------------------
244 // "size_allocate" from m_wxwindow
245 //-----------------------------------------------------------------------------
249 size_allocate(GtkWidget
*, GtkAllocation
* alloc
, wxTopLevelWindowGTK
* win
)
251 win
->m_useCachedClientSize
= true;
252 if (win
->m_clientWidth
!= alloc
->width
||
253 win
->m_clientHeight
!= alloc
->height
)
255 win
->m_clientWidth
= alloc
->width
;
256 win
->m_clientHeight
= alloc
->height
;
259 gtk_widget_get_allocation(win
->m_widget
, &a
);
260 wxSize
size(a
.width
, a
.height
);
261 size
+= win
->m_decorSize
;
262 win
->m_width
= size
.x
;
263 win
->m_height
= size
.y
;
265 if (!win
->IsIconized())
267 wxSizeEvent
event(size
, win
->GetId());
268 event
.SetEventObject(win
);
269 win
->HandleWindowEvent(event
);
271 // else the window is currently unmapped, don't generate size events
276 //-----------------------------------------------------------------------------
278 //-----------------------------------------------------------------------------
282 gtk_frame_delete_callback( GtkWidget
*WXUNUSED(widget
),
283 GdkEvent
*WXUNUSED(event
),
284 wxTopLevelWindowGTK
*win
)
286 if (win
->IsEnabled() &&
287 (wxOpenModalDialogsCount
== 0 || (win
->GetExtraStyle() & wxTOPLEVEL_EX_DIALOG
) ||
295 //-----------------------------------------------------------------------------
297 //-----------------------------------------------------------------------------
301 gtk_frame_configure_callback( GtkWidget
* widget
,
302 GdkEventConfigure
*WXUNUSED(event
),
303 wxTopLevelWindowGTK
*win
)
309 gtk_window_get_position((GtkWindow
*)widget
, &point
.x
, &point
.y
);
313 wxMoveEvent
mevent(point
, win
->GetId());
314 mevent
.SetEventObject( win
);
315 win
->HandleWindowEvent( mevent
);
321 //-----------------------------------------------------------------------------
322 // "realize" from m_widget
323 //-----------------------------------------------------------------------------
325 // we cannot the WM hints and icons before the widget has been realized,
326 // so we do this directly after realization
328 void wxTopLevelWindowGTK
::GTKHandleRealized()
330 wxNonOwnedWindow
::GTKHandleRealized();
332 gdk_window_set_decorations(gtk_widget_get_window(m_widget
),
333 (GdkWMDecoration
)m_gdkDecor
);
334 gdk_window_set_functions(gtk_widget_get_window(m_widget
),
335 (GdkWMFunction
)m_gdkFunc
);
337 // GTK's shrinking/growing policy
338 if ( !(m_gdkFunc
& GDK_FUNC_RESIZE
) )
339 gtk_window_set_resizable(GTK_WINDOW(m_widget
), FALSE
);
342 gtk_window_set_policy(GTK_WINDOW(m_widget
), 1, 1, 1);
345 const wxIconBundle
& icons
= GetIcons();
346 if (icons
.GetIconCount())
350 if (gtk_window_get_has_resize_grip(GTK_WINDOW(m_widget
)))
352 // Grip window can end up obscured, probably due to deferred show.
353 // Reset grip to ensure it is visible.
354 gtk_window_set_has_resize_grip(GTK_WINDOW(m_widget
), false);
355 gtk_window_set_has_resize_grip(GTK_WINDOW(m_widget
), true);
360 //-----------------------------------------------------------------------------
361 // "map_event" from m_widget
362 //-----------------------------------------------------------------------------
366 gtk_frame_map_callback( GtkWidget
*,
367 GdkEvent
* WXUNUSED(event
),
368 wxTopLevelWindow
*win
)
370 const bool wasIconized
= win
->IsIconized();
373 // Because GetClientSize() returns (0,0) when IsIconized() is true,
374 // a size event must be generated, just in case GetClientSize() was
375 // called while iconized. This specifically happens when restoring a
376 // tlw that was "rolled up" with some WMs.
377 // Queue a resize rather than sending size event directly to allow
378 // children to be made visible first.
379 win
->m_useCachedClientSize
= false;
380 win
->m_clientWidth
= 0;
381 gtk_widget_queue_resize(win
->m_wxwindow
);
383 // it is possible for m_isShown to be false here, see bug #9909
384 if (win
->wxWindowBase
::Show(true))
386 wxShowEvent
eventShow(win
->GetId(), true);
387 eventShow
.SetEventObject(win
);
388 win
->GetEventHandler()->ProcessEvent(eventShow
);
391 // restore focus-on-map setting in case ShowWithoutActivating() was called
392 gtk_window_set_focus_on_map(GTK_WINDOW(win
->m_widget
), true);
398 //-----------------------------------------------------------------------------
399 // "window-state-event" from m_widget
400 //-----------------------------------------------------------------------------
404 gtk_frame_window_state_callback( GtkWidget
* WXUNUSED(widget
),
405 GdkEventWindowState
*event
,
406 wxTopLevelWindow
*win
)
408 if (event
->changed_mask
& GDK_WINDOW_STATE_ICONIFIED
)
409 win
->SetIconizeState((event
->new_window_state
& GDK_WINDOW_STATE_ICONIFIED
) != 0);
411 // if maximized bit changed and it is now set
412 if (event
->changed_mask
& event
->new_window_state
& GDK_WINDOW_STATE_MAXIMIZED
)
414 wxMaximizeEvent
evt(win
->GetId());
415 evt
.SetEventObject(win
);
416 win
->HandleWindowEvent(evt
);
419 if (event
->changed_mask
& GDK_WINDOW_STATE_FULLSCREEN
)
420 win
->m_fsIsShowing
= (event
->new_window_state
& GDK_WINDOW_STATE_FULLSCREEN
) != 0;
426 //-----------------------------------------------------------------------------
428 bool wxGetFrameExtents(GdkWindow
* window
, int* left
, int* right
, int* top
, int* bottom
)
430 #ifdef GDK_WINDOWING_X11
431 static GdkAtom property
= gdk_atom_intern("_NET_FRAME_EXTENTS", false);
432 GdkDisplay
* display
= gdk_window_get_display(window
);
433 Atom xproperty
= gdk_x11_atom_to_xatom_for_display(display
, property
);
436 gulong nitems
, bytes_after
;
438 Status status
= XGetWindowProperty(
439 GDK_DISPLAY_XDISPLAY(display
),
440 GDK_WINDOW_XID(window
),
442 0, 4, false, XA_CARDINAL
,
443 &type
, &format
, &nitems
, &bytes_after
, &data
);
444 const bool success
= status
== Success
&& data
&& nitems
== 4;
447 long* p
= (long*)data
;
448 if (left
) *left
= int(p
[0]);
449 if (right
) *right
= int(p
[1]);
450 if (top
) *top
= int(p
[2]);
451 if (bottom
) *bottom
= int(p
[3]);
461 #ifdef GDK_WINDOWING_X11
462 //-----------------------------------------------------------------------------
463 // "property_notify_event" from m_widget
464 //-----------------------------------------------------------------------------
467 static gboolean
property_notify_event(
468 GtkWidget
*, GdkEventProperty
* event
, wxTopLevelWindowGTK
* win
)
470 // Watch for changes to _NET_FRAME_EXTENTS property
471 static GdkAtom property
= gdk_atom_intern("_NET_FRAME_EXTENTS", false);
472 if (event
->state
== GDK_PROPERTY_NEW_VALUE
&& event
->atom
== property
)
474 if (win
->m_netFrameExtentsTimerId
)
476 // WM support for _NET_REQUEST_FRAME_EXTENTS is working
477 gs_requestFrameExtentsStatus
= 1;
478 g_source_remove(win
->m_netFrameExtentsTimerId
);
479 win
->m_netFrameExtentsTimerId
= 0;
482 wxSize decorSize
= win
->m_decorSize
;
483 int left
, right
, top
, bottom
;
484 if (wxGetFrameExtents(event
->window
, &left
, &right
, &top
, &bottom
))
485 decorSize
.Set(left
+ right
, top
+ bottom
);
487 win
->GTKUpdateDecorSize(decorSize
);
494 static gboolean
request_frame_extents_timeout(void* data
)
496 // WM support for _NET_REQUEST_FRAME_EXTENTS is broken
497 gs_requestFrameExtentsStatus
= 2;
499 wxTopLevelWindowGTK
* win
= static_cast<wxTopLevelWindowGTK
*>(data
);
500 win
->m_netFrameExtentsTimerId
= 0;
501 wxSize decorSize
= win
->m_decorSize
;
502 int left
, right
, top
, bottom
;
503 if (wxGetFrameExtents(gtk_widget_get_window(win
->m_widget
), &left
, &right
, &top
, &bottom
))
504 decorSize
.Set(left
+ right
, top
+ bottom
);
505 win
->GTKUpdateDecorSize(decorSize
);
510 #endif // GDK_WINDOWING_X11
512 // ----------------------------------------------------------------------------
513 // wxTopLevelWindowGTK creation
514 // ----------------------------------------------------------------------------
516 void wxTopLevelWindowGTK
::Init()
519 m_isIconized
= false;
520 m_fsIsShowing
= false;
521 m_themeEnabled
= true;
526 m_deferShowAllowed
= true;
527 m_updateDecorSize
= true;
528 m_netFrameExtentsTimerId
= 0;
529 m_incWidth
= m_incHeight
= 0;
534 bool wxTopLevelWindowGTK
::Create( wxWindow
*parent
,
536 const wxString
& title
,
538 const wxSize
& sizeOrig
,
540 const wxString
&name
)
542 // always create a frame of some reasonable, even if arbitrary, size (at
543 // least for MSW compatibility)
544 wxSize size
= sizeOrig
;
545 size
.x
= WidthDefault(size
.x
);
546 size
.y
= HeightDefault(size
.y
);
548 wxTopLevelWindows
.Append( this );
550 if (!PreCreation( parent
, pos
, size
) ||
551 !CreateBase( parent
, id
, pos
, size
, style
, wxDefaultValidator
, name
))
553 wxFAIL_MSG( wxT("wxTopLevelWindowGTK creation failed") );
559 // NB: m_widget may be !=NULL if it was created by derived class' Create,
560 // e.g. in wxTaskBarIconAreaGTK
561 if (m_widget
== NULL
)
563 #if wxUSE_LIBHILDON || wxUSE_LIBHILDON2
564 // we must create HildonWindow and not a normal GtkWindow as the latter
565 // doesn't look correctly in Maemo environment and it must also be
566 // registered with the main program object
567 m_widget
= hildon_window_new();
568 hildon_program_add_window(wxTheApp
->GetHildonProgram(),
569 HILDON_WINDOW(m_widget
));
570 #else // !wxUSE_LIBHILDON || !wxUSE_LIBHILDON2
571 m_widget
= gtk_window_new(GTK_WINDOW_TOPLEVEL
);
572 if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG
)
574 // Tell WM that this is a dialog window and make it center
575 // on parent by default (this is what GtkDialog ctor does):
576 gtk_window_set_type_hint(GTK_WINDOW(m_widget
),
577 GDK_WINDOW_TYPE_HINT_DIALOG
);
578 gtk_window_set_position(GTK_WINDOW(m_widget
),
579 GTK_WIN_POS_CENTER_ON_PARENT
);
583 if (style
& wxFRAME_TOOL_WINDOW
)
585 gtk_window_set_type_hint(GTK_WINDOW(m_widget
),
586 GDK_WINDOW_TYPE_HINT_UTILITY
);
588 // On some WMs, like KDE, a TOOL_WINDOW will still show
589 // on the taskbar, but on Gnome a TOOL_WINDOW will not.
590 // For consistency between WMs and with Windows, we
591 // should set the NO_TASKBAR flag which will apply
592 // the set_skip_taskbar_hint if it is available,
593 // ensuring no taskbar entry will appear.
594 style
|= wxFRAME_NO_TASKBAR
;
597 #endif // wxUSE_LIBHILDON || wxUSE_LIBHILDON2/!wxUSE_LIBHILDON || !wxUSE_LIBHILDON2
599 g_object_ref(m_widget
);
602 wxWindow
*topParent
= wxGetTopLevelParent(m_parent
);
603 if (topParent
&& (((GTK_IS_WINDOW(topParent
->m_widget
)) &&
604 (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG
)) ||
605 (style
& wxFRAME_FLOAT_ON_PARENT
)))
607 gtk_window_set_transient_for( GTK_WINDOW(m_widget
),
608 GTK_WINDOW(topParent
->m_widget
) );
611 if (style
& wxFRAME_NO_TASKBAR
)
613 gtk_window_set_skip_taskbar_hint(GTK_WINDOW(m_widget
), TRUE
);
616 if (style
& wxSTAY_ON_TOP
)
618 gtk_window_set_keep_above(GTK_WINDOW(m_widget
), TRUE
);
620 if (style
& wxMAXIMIZE
)
621 gtk_window_maximize(GTK_WINDOW(m_widget
));
625 gtk_window_set_role( GTK_WINDOW(m_widget
), wxGTK_CONV( name
) );
628 gtk_window_set_title( GTK_WINDOW(m_widget
), wxGTK_CONV( title
) );
629 gtk_widget_set_can_focus(m_widget
, false);
631 g_signal_connect (m_widget
, "delete_event",
632 G_CALLBACK (gtk_frame_delete_callback
), this);
634 // m_mainWidget is a GtkVBox, holding the bars and client area (m_wxwindow)
635 m_mainWidget
= gtk_box_new(GTK_ORIENTATION_VERTICAL
, 0);
636 gtk_widget_show( m_mainWidget
);
637 gtk_widget_set_can_focus(m_mainWidget
, false);
638 gtk_container_add( GTK_CONTAINER(m_widget
), m_mainWidget
);
640 // m_wxwindow is the client area
641 m_wxwindow
= wxPizza
::New();
642 gtk_widget_show( m_wxwindow
);
643 gtk_box_pack_start(GTK_BOX(m_mainWidget
), m_wxwindow
, true, true, 0);
645 // we donm't allow the frame to get the focus as otherwise
646 // the frame will grab it at arbitrary focus changes
647 gtk_widget_set_can_focus(m_wxwindow
, false);
649 if (m_parent
) m_parent
->AddChild( this );
651 g_signal_connect(m_wxwindow
, "size_allocate",
652 G_CALLBACK(size_allocate
), this);
657 if ((m_x
!= -1) || (m_y
!= -1))
658 gtk_widget_set_uposition( m_widget
, m_x
, m_y
);
661 // for some reported size corrections
662 g_signal_connect (m_widget
, "map_event",
663 G_CALLBACK (gtk_frame_map_callback
), this);
665 // for iconized state
666 g_signal_connect (m_widget
, "window_state_event",
667 G_CALLBACK (gtk_frame_window_state_callback
), this);
671 g_signal_connect (m_widget
, "configure_event",
672 G_CALLBACK (gtk_frame_configure_callback
), this);
675 g_signal_connect_after (m_widget
, "focus_in_event",
676 G_CALLBACK (gtk_frame_focus_in_callback
), this);
677 g_signal_connect_after (m_widget
, "focus_out_event",
678 G_CALLBACK (gtk_frame_focus_out_callback
), this);
680 // We need to customize the default GTK+ logic for key processing to make
681 // it conforming to wxWidgets event processing order.
682 g_signal_connect (m_widget
, "key_press_event",
683 G_CALLBACK (wxgtk_tlw_key_press_event
), NULL
);
685 #ifdef GDK_WINDOWING_X11
687 if (GDK_IS_X11_SCREEN(gtk_window_get_screen(GTK_WINDOW(m_widget
))))
690 gtk_widget_add_events(m_widget
, GDK_PROPERTY_CHANGE_MASK
);
691 g_signal_connect(m_widget
, "property_notify_event",
692 G_CALLBACK(property_notify_event
), this);
694 #endif // GDK_WINDOWING_X11
696 // translate wx decorations styles into Motif WM hints (they are recognized
697 // by other WMs as well)
699 // always enable moving the window as we have no separate flag for enabling
701 m_gdkFunc
= GDK_FUNC_MOVE
;
703 if ( style
& wxCLOSE_BOX
)
704 m_gdkFunc
|= GDK_FUNC_CLOSE
;
706 if ( style
& wxMINIMIZE_BOX
)
707 m_gdkFunc
|= GDK_FUNC_MINIMIZE
;
709 if ( style
& wxMAXIMIZE_BOX
)
710 m_gdkFunc
|= GDK_FUNC_MAXIMIZE
;
712 if ( (style
& wxSIMPLE_BORDER
) || (style
& wxNO_BORDER
) )
718 m_gdkDecor
= GDK_DECOR_BORDER
;
720 if ( style
& wxCAPTION
)
721 m_gdkDecor
|= GDK_DECOR_TITLE
;
723 if ( style
& wxSYSTEM_MENU
)
724 m_gdkDecor
|= GDK_DECOR_MENU
;
726 if ( style
& wxMINIMIZE_BOX
)
727 m_gdkDecor
|= GDK_DECOR_MINIMIZE
;
729 if ( style
& wxMAXIMIZE_BOX
)
730 m_gdkDecor
|= GDK_DECOR_MAXIMIZE
;
732 if ( style
& wxRESIZE_BORDER
)
734 m_gdkFunc
|= GDK_FUNC_RESIZE
;
735 m_gdkDecor
|= GDK_DECOR_RESIZEH
;
739 // GTK sometimes chooses very small size if max size hint is not explicitly set
740 DoSetSizeHints(m_minWidth
, m_minHeight
, m_maxWidth
, m_maxHeight
, m_incWidth
, m_incHeight
);
742 m_decorSize
= GetCachedDecorSize();
744 GTKDoGetSize(&w
, &h
);
745 gtk_window_set_default_size(GTK_WINDOW(m_widget
), w
, h
);
750 wxTopLevelWindowGTK
::~wxTopLevelWindowGTK()
752 if ( m_netFrameExtentsTimerId
)
754 // Don't let the timer callback fire as the window pointer passed to it
755 // will become invalid very soon.
756 g_source_remove(m_netFrameExtentsTimerId
);
759 #if wxUSE_LIBHILDON || wxUSE_LIBHILDON2
760 // it can also be a (standard) dialog
761 if ( HILDON_IS_WINDOW(m_widget
) )
763 hildon_program_remove_window(wxTheApp
->GetHildonProgram(),
764 HILDON_WINDOW(m_widget
));
766 #endif // wxUSE_LIBHILDON || wxUSE_LIBHILDON2
770 wxFAIL_MSG(wxT("Window still grabbed"));
776 // it may also be GtkScrolledWindow in the case of an MDI child
777 if (GTK_IS_WINDOW(m_widget
))
779 gtk_window_set_focus( GTK_WINDOW(m_widget
), NULL
);
782 if (g_activeFrame
== this)
783 g_activeFrame
= NULL
;
784 if (g_lastActiveFrame
== this)
785 g_lastActiveFrame
= NULL
;
788 bool wxTopLevelWindowGTK
::EnableCloseButton( bool enable
)
791 m_gdkFunc
|= GDK_FUNC_CLOSE
;
793 m_gdkFunc
&= ~GDK_FUNC_CLOSE
;
795 GdkWindow
* window
= gtk_widget_get_window(m_widget
);
797 gdk_window_set_functions(window
, (GdkWMFunction
)m_gdkFunc
);
802 bool wxTopLevelWindowGTK
::ShowFullScreen(bool show
, long)
804 if (show
== m_fsIsShowing
)
805 return false; // return what?
807 m_fsIsShowing
= show
;
809 #ifdef GDK_WINDOWING_X11
810 Display
* xdpy
= GDK_DISPLAY_XDISPLAY(gtk_widget_get_display(m_widget
));
811 Window xroot
= GDK_WINDOW_XID(gtk_widget_get_root_window(m_widget
));
812 wxX11FullScreenMethod method
= wxGetFullScreenMethodX11(xdpy
, (WXWindow
)xroot
);
814 // NB: gtk_window_fullscreen() uses freedesktop.org's WMspec extensions
815 // to switch to fullscreen, which is not always available. We must
816 // check if WM supports the spec and use legacy methods if it
818 if ( method
== wxX11_FS_WMSPEC
)
819 #endif // GDK_WINDOWING_X11
822 gtk_window_fullscreen( GTK_WINDOW( m_widget
) );
824 gtk_window_unfullscreen( GTK_WINDOW( m_widget
) );
826 #ifdef GDK_WINDOWING_X11
829 GdkWindow
* window
= gtk_widget_get_window(m_widget
);
830 Window xid
= GDK_WINDOW_XID(window
);
834 GetPosition( &m_fsSaveFrame
.x
, &m_fsSaveFrame
.y
);
835 GetSize( &m_fsSaveFrame
.width
, &m_fsSaveFrame
.height
);
837 GdkScreen
* screen
= gtk_widget_get_screen(m_widget
);
838 const int screen_width
= gdk_screen_get_width(screen
);
839 const int screen_height
= gdk_screen_get_height(screen
);
841 gint client_x
, client_y
, root_x
, root_y
;
844 m_fsSaveGdkFunc
= m_gdkFunc
;
845 m_fsSaveGdkDecor
= m_gdkDecor
;
846 m_gdkFunc
= m_gdkDecor
= 0;
847 gdk_window_set_decorations(window
, (GdkWMDecoration
)0);
848 gdk_window_set_functions(window
, (GdkWMFunction
)0);
850 gdk_window_get_origin(window
, &root_x
, &root_y
);
851 gdk_window_get_geometry(window
, &client_x
, &client_y
, &width
, &height
);
853 gdk_window_move_resize(
854 window
, -client_x
, -client_y
, screen_width
+ 1, screen_height
+ 1);
856 wxSetFullScreenStateX11(xdpy
,
859 show
, &m_fsSaveFrame
, method
);
863 m_gdkFunc
= m_fsSaveGdkFunc
;
864 m_gdkDecor
= m_fsSaveGdkDecor
;
865 gdk_window_set_decorations(window
, (GdkWMDecoration
)m_gdkDecor
);
866 gdk_window_set_functions(window
, (GdkWMFunction
)m_gdkFunc
);
868 wxSetFullScreenStateX11(xdpy
,
871 show
, &m_fsSaveFrame
, method
);
873 SetSize(m_fsSaveFrame
.x
, m_fsSaveFrame
.y
,
874 m_fsSaveFrame
.width
, m_fsSaveFrame
.height
);
877 #endif // GDK_WINDOWING_X11
879 // documented behaviour is to show the window if it's still hidden when
880 // showing it full screen
887 // ----------------------------------------------------------------------------
888 // overridden wxWindow methods
889 // ----------------------------------------------------------------------------
891 void wxTopLevelWindowGTK
::Refresh( bool WXUNUSED(eraseBackground
), const wxRect
*WXUNUSED(rect
) )
893 wxCHECK_RET( m_widget
, wxT("invalid frame") );
895 gtk_widget_queue_draw( m_widget
);
897 GdkWindow
* window
= NULL
;
899 window
= gtk_widget_get_window(m_wxwindow
);
901 gdk_window_invalidate_rect(window
, NULL
, true);
904 bool wxTopLevelWindowGTK
::Show( bool show
)
906 wxASSERT_MSG( (m_widget
!= NULL
), wxT("invalid frame") );
908 #ifdef GDK_WINDOWING_X11
909 bool deferShow
= show
&& !m_isShown
&& m_deferShow
;
912 deferShow
= m_deferShowAllowed
&& gs_requestFrameExtentsStatus
!= 2 &&
913 !gtk_widget_get_realized(m_widget
) &&
914 g_signal_handler_find(m_widget
,
915 GSignalMatchType(G_SIGNAL_MATCH_ID
| G_SIGNAL_MATCH_DATA
),
916 g_signal_lookup("property_notify_event", GTK_TYPE_WIDGET
),
917 0, NULL
, NULL
, this);
920 GdkScreen
* screen
= gtk_widget_get_screen(m_widget
);
921 GdkAtom atom
= gdk_atom_intern("_NET_REQUEST_FRAME_EXTENTS", false);
922 deferShow
= gdk_x11_screen_supports_net_wm_hint(screen
, atom
) != 0;
924 // If _NET_REQUEST_FRAME_EXTENTS not supported, don't allow changes
925 // to m_decorSize, it breaks saving/restoring window size with
926 // GetSize()/SetSize() because it makes window bigger between each
928 m_updateDecorSize
= deferShow
;
931 m_deferShow
= deferShow
;
935 // Initial show. If WM supports _NET_REQUEST_FRAME_EXTENTS, defer
936 // calling gtk_widget_show() until _NET_FRAME_EXTENTS property
937 // notification is received, so correct frame extents are known.
938 // This allows resizing m_widget to keep the overall size in sync with
939 // what wxWidgets expects it to be without an obvious change in the
940 // window size immediately after it becomes visible.
942 // Realize m_widget, so m_widget->window can be used. Realizing normally
943 // causes the widget tree to be size_allocated, which generates size
944 // events in the wrong order. However, the size_allocates will not be
945 // done if the allocation is not the default (1,1).
947 gtk_widget_get_allocation(m_widget
, &alloc
);
948 const int alloc_width
= alloc
.width
;
949 if (alloc_width
== 1)
952 gtk_widget_set_allocation(m_widget
, &alloc
);
954 gtk_widget_realize(m_widget
);
955 if (alloc_width
== 1)
958 gtk_widget_set_allocation(m_widget
, &alloc
);
961 // send _NET_REQUEST_FRAME_EXTENTS
962 XClientMessageEvent xevent
;
963 memset(&xevent
, 0, sizeof(xevent
));
964 xevent
.type
= ClientMessage
;
965 GdkWindow
* window
= gtk_widget_get_window(m_widget
);
966 xevent
.window
= GDK_WINDOW_XID(window
);
967 xevent
.message_type
= gdk_x11_atom_to_xatom_for_display(
968 gdk_window_get_display(window
),
969 gdk_atom_intern("_NET_REQUEST_FRAME_EXTENTS", false));
971 Display
* display
= GDK_DISPLAY_XDISPLAY(gdk_window_get_display(window
));
972 XSendEvent(display
, DefaultRootWindow(display
), false,
973 SubstructureNotifyMask
| SubstructureRedirectMask
,
976 if (gs_requestFrameExtentsStatus
== 0)
978 // if WM does not respond to request within 1 second,
979 // we assume support for _NET_REQUEST_FRAME_EXTENTS is not working
980 m_netFrameExtentsTimerId
=
981 g_timeout_add(1000, request_frame_extents_timeout
, this);
984 // defer calling gtk_widget_show()
988 #endif // GDK_WINDOWING_X11
990 if (show
&& !gtk_widget_get_realized(m_widget
))
992 // size_allocate signals occur in reverse order (bottom to top).
993 // Things work better if the initial wxSizeEvents are sent (from the
994 // top down), before the initial size_allocate signals occur.
995 wxSizeEvent
event(GetSize(), GetId());
996 event
.SetEventObject(this);
997 HandleWindowEvent(event
);
1000 bool change
= base_type
::Show(show
);
1002 if (change
&& !show
)
1004 // make sure window has a non-default position, so when it is shown
1005 // again, it won't be repositioned by WM as if it were a new window
1006 // Note that this must be done _after_ the window is hidden.
1007 gtk_window_move((GtkWindow
*)m_widget
, m_x
, m_y
);
1013 void wxTopLevelWindowGTK
::ShowWithoutActivating()
1017 gtk_window_set_focus_on_map(GTK_WINDOW(m_widget
), false);
1022 void wxTopLevelWindowGTK
::Raise()
1024 gtk_window_present( GTK_WINDOW( m_widget
) );
1027 void wxTopLevelWindowGTK
::DoMoveWindow(int WXUNUSED(x
), int WXUNUSED(y
), int WXUNUSED(width
), int WXUNUSED(height
) )
1029 wxFAIL_MSG( wxT("DoMoveWindow called for wxTopLevelWindowGTK") );
1032 // ----------------------------------------------------------------------------
1034 // ----------------------------------------------------------------------------
1036 void wxTopLevelWindowGTK
::GTKDoGetSize(int *width
, int *height
) const
1038 wxSize
size(m_width
, m_height
);
1039 size
-= m_decorSize
;
1040 if (size
.x
< 0) size
.x
= 0;
1041 if (size
.y
< 0) size
.y
= 0;
1042 #if wxUSE_LIBHILDON2
1052 else if (size
.y
== 270)
1057 #else // wxUSE_LIBHILDON2
1058 if (width
) *width
= size
.x
;
1059 if (height
) *height
= size
.y
;
1060 #endif // wxUSE_LIBHILDON2 /!wxUSE_LIBHILDON2
1063 void wxTopLevelWindowGTK
::DoSetSize( int x
, int y
, int width
, int height
, int sizeFlags
)
1065 wxCHECK_RET( m_widget
, wxT("invalid frame") );
1067 // deal with the position first
1071 if ( !(sizeFlags
& wxSIZE_ALLOW_MINUS_ONE
) )
1073 // -1 means "use existing" unless the flag above is specified
1079 else // wxSIZE_ALLOW_MINUS_ONE
1085 if ( m_x
!= old_x
|| m_y
!= old_y
)
1087 gtk_window_move( GTK_WINDOW(m_widget
), m_x
, m_y
);
1090 const wxSize
oldSize(m_width
, m_height
);
1096 if (m_width
< 1) m_width
= 1;
1097 if (m_height
< 1) m_height
= 1;
1098 if (m_width
!= oldSize
.x
|| m_height
!= oldSize
.y
)
1100 m_deferShowAllowed
= true;
1101 m_useCachedClientSize
= false;
1104 GTKDoGetSize(&w
, &h
);
1105 gtk_window_resize(GTK_WINDOW(m_widget
), w
, h
);
1107 DoGetClientSize(&m_clientWidth
, &m_clientHeight
);
1108 wxSizeEvent
event(GetSize(), GetId());
1109 event
.SetEventObject(this);
1110 HandleWindowEvent(event
);
1114 void wxTopLevelWindowGTK
::DoSetClientSize(int width
, int height
)
1116 base_type
::DoSetClientSize(width
, height
);
1118 // Since client size is being explicitly set, don't change it later
1119 // Has to be done after calling base because it calls SetSize,
1120 // which sets this true
1121 m_deferShowAllowed
= false;
1124 void wxTopLevelWindowGTK
::DoGetClientSize( int *width
, int *height
) const
1126 wxASSERT_MSG(m_widget
, wxT("invalid frame"));
1130 // for consistency with wxMSW, client area is supposed to be empty for
1131 // the iconized windows
1137 else if (m_useCachedClientSize
)
1138 base_type
::DoGetClientSize(width
, height
);
1141 GTKDoGetSize(width
, height
);
1145 void wxTopLevelWindowGTK
::DoSetSizeHints( int minW
, int minH
,
1147 int incW
, int incH
)
1149 base_type
::DoSetSizeHints(minW
, minH
, maxW
, maxH
, incW
, incH
);
1153 const wxSize minSize
= GetMinSize();
1154 const wxSize maxSize
= GetMaxSize();
1156 // always set both min and max hints, otherwise GTK will
1157 // make assumptions we don't want about the unset values
1158 int hints_mask
= GDK_HINT_MIN_SIZE
| GDK_HINT_MAX_SIZE
;
1159 hints
.min_width
= 1;
1160 hints
.min_height
= 1;
1161 hints
.max_width
= INT_MAX
;
1162 hints
.max_height
= INT_MAX
;
1163 if (minSize
.x
> m_decorSize
.x
)
1164 hints
.min_width
= minSize
.x
- m_decorSize
.x
;
1165 if (minSize
.y
> m_decorSize
.y
)
1166 hints
.min_height
= minSize
.y
- m_decorSize
.y
;
1169 hints
.max_width
= maxSize
.x
- m_decorSize
.x
;
1170 if (hints
.max_width
< hints
.min_width
)
1171 hints
.max_width
= hints
.min_width
;
1175 hints
.max_height
= maxSize
.y
- m_decorSize
.y
;
1176 if (hints
.max_height
< hints
.min_height
)
1177 hints
.max_height
= hints
.min_height
;
1179 if (incW
> 0 || incH
> 0)
1181 hints_mask
|= GDK_HINT_RESIZE_INC
;
1182 hints
.width_inc
= incW
> 0 ? incW
: 1;
1183 hints
.height_inc
= incH
> 0 ? incH
: 1;
1185 gtk_window_set_geometry_hints(
1186 (GtkWindow
*)m_widget
, NULL
, &hints
, (GdkWindowHints
)hints_mask
);
1189 #ifdef GDK_WINDOWING_X11
1190 void wxTopLevelWindowGTK
::GTKUpdateDecorSize(const wxSize
& decorSize
)
1192 if (!IsMaximized() && !IsFullScreen())
1193 GetCachedDecorSize() = decorSize
;
1194 if (m_updateDecorSize
&& m_decorSize
!= decorSize
)
1196 m_useCachedClientSize
= false;
1197 const wxSize diff
= decorSize
- m_decorSize
;
1198 m_decorSize
= decorSize
;
1199 bool resized
= false;
1200 if (m_minWidth
> 0 || m_minHeight
> 0 || m_maxWidth
> 0 || m_maxHeight
> 0)
1202 // update size hints, they depend on m_decorSize
1203 DoSetSizeHints(m_minWidth
, m_minHeight
, m_maxWidth
, m_maxHeight
, m_incWidth
, m_incHeight
);
1207 // keep overall size unchanged by shrinking m_widget
1209 GTKDoGetSize(&w
, &h
);
1210 // but not if size would be less than minimum, it won't take effect
1211 if (w
>= m_minWidth
- decorSize
.x
&& h
>= m_minHeight
- decorSize
.y
)
1213 gtk_window_resize(GTK_WINDOW(m_widget
), w
, h
);
1219 // adjust overall size to match change in frame extents
1222 if (m_width
< 1) m_width
= 1;
1223 if (m_height
< 1) m_height
= 1;
1225 gtk_widget_queue_resize(m_wxwindow
);
1230 // gtk_widget_show() was deferred, do it now
1231 m_deferShow
= false;
1232 DoGetClientSize(&m_clientWidth
, &m_clientHeight
);
1233 wxSizeEvent
sizeEvent(GetSize(), GetId());
1234 sizeEvent
.SetEventObject(this);
1235 HandleWindowEvent(sizeEvent
);
1237 gtk_widget_show(m_widget
);
1239 wxShowEvent
showEvent(GetId(), true);
1240 showEvent
.SetEventObject(this);
1241 HandleWindowEvent(showEvent
);
1244 #endif // GDK_WINDOWING_X11
1246 wxSize
& wxTopLevelWindowGTK
::GetCachedDecorSize()
1248 static wxSize size
[8];
1252 if (m_gdkDecor
& (GDK_DECOR_MENU
| GDK_DECOR_MINIMIZE
| GDK_DECOR_MAXIMIZE
| GDK_DECOR_TITLE
))
1255 if (m_gdkDecor
& GDK_DECOR_BORDER
)
1257 // utility window decor can be different
1258 if (m_windowStyle
& wxFRAME_TOOL_WINDOW
)
1263 void wxTopLevelWindowGTK
::OnInternalIdle()
1265 wxTopLevelWindowBase
::OnInternalIdle();
1267 // Synthetize activate events.
1268 if ( g_sendActivateEvent
!= -1 )
1270 bool activate
= g_sendActivateEvent
!= 0;
1272 // if (!activate) wxPrintf( wxT("de") );
1273 // wxPrintf( wxT("activate\n") );
1276 g_sendActivateEvent
= -1;
1278 wxTheApp
->SetActive(activate
, (wxWindow
*)g_lastActiveFrame
);
1282 // ----------------------------------------------------------------------------
1284 // ----------------------------------------------------------------------------
1286 void wxTopLevelWindowGTK
::SetTitle( const wxString
&title
)
1288 wxASSERT_MSG( (m_widget
!= NULL
), wxT("invalid frame") );
1290 if ( title
== m_title
)
1295 gtk_window_set_title( GTK_WINDOW(m_widget
), wxGTK_CONV( title
) );
1298 void wxTopLevelWindowGTK
::SetIcons( const wxIconBundle
&icons
)
1300 wxASSERT_MSG( (m_widget
!= NULL
), wxT("invalid frame") );
1302 base_type
::SetIcons(icons
);
1304 // Setting icons before window is realized can cause a GTK assertion if
1305 // another TLW is realized before this one, and it has this one as it's
1306 // transient parent. The life demo exibits this problem.
1307 if (gtk_widget_get_realized(m_widget
))
1310 for (size_t i
= icons
.GetIconCount(); i
--;)
1311 list
= g_list_prepend(list
, icons
.GetIconByIndex(i
).GetPixbuf());
1312 gtk_window_set_icon_list(GTK_WINDOW(m_widget
), list
);
1317 // ----------------------------------------------------------------------------
1318 // frame state: maximized/iconized/normal
1319 // ----------------------------------------------------------------------------
1321 void wxTopLevelWindowGTK
::Maximize(bool maximize
)
1324 gtk_window_maximize( GTK_WINDOW( m_widget
) );
1326 gtk_window_unmaximize( GTK_WINDOW( m_widget
) );
1329 bool wxTopLevelWindowGTK
::IsMaximized() const
1331 GdkWindow
* window
= NULL
;
1333 window
= gtk_widget_get_window(m_widget
);
1334 return window
&& (gdk_window_get_state(window
) & GDK_WINDOW_STATE_MAXIMIZED
);
1337 void wxTopLevelWindowGTK
::Restore()
1339 // "Present" seems similar enough to "restore"
1340 gtk_window_present( GTK_WINDOW( m_widget
) );
1343 void wxTopLevelWindowGTK
::Iconize( bool iconize
)
1346 gtk_window_iconify( GTK_WINDOW( m_widget
) );
1348 gtk_window_deiconify( GTK_WINDOW( m_widget
) );
1351 bool wxTopLevelWindowGTK
::IsIconized() const
1353 return m_isIconized
;
1356 void wxTopLevelWindowGTK
::SetIconizeState(bool iconize
)
1358 if ( iconize
!= m_isIconized
)
1360 m_isIconized
= iconize
;
1361 (void)SendIconizeEvent(iconize
);
1365 void wxTopLevelWindowGTK
::AddGrab()
1370 gtk_grab_add( m_widget
);
1371 wxGUIEventLoop().Run();
1372 gtk_grab_remove( m_widget
);
1376 void wxTopLevelWindowGTK
::RemoveGrab()
1385 bool wxTopLevelWindowGTK
::IsActive()
1387 return (this == (wxTopLevelWindowGTK
*)g_activeFrame
);
1390 void wxTopLevelWindowGTK
::RequestUserAttention(int flags
)
1392 bool new_hint_value
= false;
1394 // FIXME: This is a workaround to focus handling problem
1395 // If RequestUserAttention is called for example right after a wxSleep, OnInternalIdle
1396 // hasn't yet been processed, and the internal focus system is not up to date yet.
1397 // YieldFor(wxEVT_CATEGORY_UI) ensures the processing of it (hopefully it
1398 // won't have side effects) - MR
1399 wxEventLoopBase
::GetActive()->YieldFor(wxEVT_CATEGORY_UI
);
1401 if(m_urgency_hint
>= 0)
1402 g_source_remove(m_urgency_hint
);
1404 m_urgency_hint
= -2;
1406 if( gtk_widget_get_realized(m_widget
) && !IsActive() )
1408 new_hint_value
= true;
1410 if (flags
& wxUSER_ATTENTION_INFO
)
1412 m_urgency_hint
= g_timeout_add(5000, (GSourceFunc
)gtk_frame_urgency_timer_callback
, this);
1414 m_urgency_hint
= -1;
1418 gtk_window_set_urgency_hint(GTK_WINDOW(m_widget
), new_hint_value
);
1421 void wxTopLevelWindowGTK
::SetWindowStyleFlag( long style
)
1423 // Store which styles were changed
1424 long styleChanges
= style
^ m_windowStyle
;
1426 // Process wxWindow styles. This also updates the internal variable
1427 // Therefore m_windowStyle bits carry now the _new_ style values
1428 wxWindow
::SetWindowStyleFlag(style
);
1430 // just return for now if widget does not exist yet
1434 if ( styleChanges
& wxSTAY_ON_TOP
)
1436 gtk_window_set_keep_above(GTK_WINDOW(m_widget
),
1437 m_windowStyle
& wxSTAY_ON_TOP
);
1440 if ( styleChanges
& wxFRAME_NO_TASKBAR
)
1442 gtk_window_set_skip_taskbar_hint(GTK_WINDOW(m_widget
),
1443 m_windowStyle
& wxFRAME_NO_TASKBAR
);
1447 bool wxTopLevelWindowGTK
::SetTransparent(wxByte alpha
)
1449 GdkWindow
* window
= NULL
;
1451 window
= gtk_widget_get_window(m_widget
);
1455 #ifdef GDK_WINDOWING_X11
1456 Display
* dpy
= GDK_WINDOW_XDISPLAY(window
);
1457 Window win
= GDK_WINDOW_XID(window
);
1459 // Using pure Xlib to not have a GTK version check mess due to gtk2.0 not having GdkDisplay
1461 XDeleteProperty(dpy
, win
, XInternAtom(dpy
, "_NET_WM_WINDOW_OPACITY", False
));
1464 long opacity
= alpha
* 0x1010101L
;
1465 XChangeProperty(dpy
, win
, XInternAtom(dpy
, "_NET_WM_WINDOW_OPACITY", False
),
1466 XA_CARDINAL
, 32, PropModeReplace
,
1467 (unsigned char *) &opacity
, 1L);
1471 #else // !GDK_WINDOWING_X11
1473 #endif // GDK_WINDOWING_X11 / !GDK_WINDOWING_X11
1476 bool wxTopLevelWindowGTK
::CanSetTransparent()
1478 // allow to override automatic detection as it's far from perfect
1479 const wxString SYSOPT_TRANSPARENT
= "gtk.tlw.can-set-transparent";
1480 if ( wxSystemOptions
::HasOption(SYSOPT_TRANSPARENT
) )
1482 return wxSystemOptions
::GetOptionInt(SYSOPT_TRANSPARENT
) != 0;
1486 return gtk_widget_is_composited(m_widget
) != 0;
1488 #if GTK_CHECK_VERSION(2,10,0)
1489 if (!gtk_check_version(2,10,0))
1491 return gtk_widget_is_composited(m_widget
) != 0;
1494 #endif // In case of lower versions than gtk+-2.10.0 we could look for _NET_WM_CM_Sn ourselves
1498 #endif // !__WXGTK3__
1500 #if 0 // Don't be optimistic here for the sake of wxAUI
1501 int opcode
, event
, error
;
1502 // Check for the existence of a RGBA visual instead?
1503 return XQueryExtension(gdk_x11_get_default_xdisplay (),
1504 "Composite", &opcode
, &event
, &error
);