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fix setting background color in wxGTK3 with themes which use background images or...
[wxWidgets.git] / src / gtk / window.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/gtk/window.cpp
3 // Purpose: wxWindowGTK implementation
4 // Author: Robert Roebling
5 // Id: $Id$
6 // Copyright: (c) 1998 Robert Roebling, Julian Smart
7 // Licence: wxWindows licence
8 /////////////////////////////////////////////////////////////////////////////
9
10 // For compilers that support precompilation, includes "wx.h".
11 #include "wx/wxprec.h"
12
13 #ifdef __VMS
14 #define XWarpPointer XWARPPOINTER
15 #endif
16
17 #include "wx/window.h"
18
19 #ifndef WX_PRECOMP
20 #include "wx/log.h"
21 #include "wx/app.h"
22 #include "wx/toplevel.h"
23 #include "wx/dcclient.h"
24 #include "wx/menu.h"
25 #include "wx/settings.h"
26 #include "wx/msgdlg.h"
27 #include "wx/math.h"
28 #endif
29
30 #include "wx/dnd.h"
31 #include "wx/tooltip.h"
32 #include "wx/caret.h"
33 #include "wx/fontutil.h"
34 #include "wx/sysopt.h"
35 #ifdef __WXGTK3__
36 #include "wx/gtk/dc.h"
37 #endif
38
39 #include <ctype.h>
40
41 #include <gtk/gtk.h>
42 #include "wx/gtk/private.h"
43 #include "wx/gtk/private/gtk2-compat.h"
44 #include "wx/gtk/private/event.h"
45 #include "wx/gtk/private/win_gtk.h"
46 #include "wx/private/textmeasure.h"
47 using namespace wxGTKImpl;
48
49 #ifdef GDK_WINDOWING_X11
50 #include <gdk/gdkx.h>
51 #include "wx/x11/private/wrapxkb.h"
52 #else
53 typedef guint KeySym;
54 #endif
55
56 #include <gdk/gdkkeysyms.h>
57 #ifdef __WXGTK3__
58 #include <gdk/gdkkeysyms-compat.h>
59 #endif
60
61 // gdk_window_set_composited() is only supported since 2.12
62 #define wxGTK_VERSION_REQUIRED_FOR_COMPOSITING 2,12,0
63 #define wxGTK_HAS_COMPOSITING_SUPPORT GTK_CHECK_VERSION(2,12,0)
64
65 //-----------------------------------------------------------------------------
66 // documentation on internals
67 //-----------------------------------------------------------------------------
68
69 /*
70 I have been asked several times about writing some documentation about
71 the GTK port of wxWidgets, especially its internal structures. Obviously,
72 you cannot understand wxGTK without knowing a little about the GTK, but
73 some more information about what the wxWindow, which is the base class
74 for all other window classes, does seems required as well.
75
76 I)
77
78 What does wxWindow do? It contains the common interface for the following
79 jobs of its descendants:
80
81 1) Define the rudimentary behaviour common to all window classes, such as
82 resizing, intercepting user input (so as to make it possible to use these
83 events for special purposes in a derived class), window names etc.
84
85 2) Provide the possibility to contain and manage children, if the derived
86 class is allowed to contain children, which holds true for those window
87 classes which do not display a native GTK widget. To name them, these
88 classes are wxPanel, wxScrolledWindow, wxDialog, wxFrame. The MDI frame-
89 work classes are a special case and are handled a bit differently from
90 the rest. The same holds true for the wxNotebook class.
91
92 3) Provide the possibility to draw into a client area of a window. This,
93 too, only holds true for classes that do not display a native GTK widget
94 as above.
95
96 4) Provide the entire mechanism for scrolling widgets. This actual inter-
97 face for this is usually in wxScrolledWindow, but the GTK implementation
98 is in this class.
99
100 5) A multitude of helper or extra methods for special purposes, such as
101 Drag'n'Drop, managing validators etc.
102
103 6) Display a border (sunken, raised, simple or none).
104
105 Normally one might expect, that one wxWidgets window would always correspond
106 to one GTK widget. Under GTK, there is no such all-round widget that has all
107 the functionality. Moreover, the GTK defines a client area as a different
108 widget from the actual widget you are handling. Last but not least some
109 special classes (e.g. wxFrame) handle different categories of widgets and
110 still have the possibility to draw something in the client area.
111 It was therefore required to write a special purpose GTK widget, that would
112 represent a client area in the sense of wxWidgets capable to do the jobs
113 2), 3) and 4). I have written this class and it resides in win_gtk.c of
114 this directory.
115
116 All windows must have a widget, with which they interact with other under-
117 lying GTK widgets. It is this widget, e.g. that has to be resized etc and
118 the wxWindow class has a member variable called m_widget which holds a
119 pointer to this widget. When the window class represents a GTK native widget,
120 this is (in most cases) the only GTK widget the class manages. E.g. the
121 wxStaticText class handles only a GtkLabel widget a pointer to which you
122 can find in m_widget (defined in wxWindow)
123
124 When the class has a client area for drawing into and for containing children
125 it has to handle the client area widget (of the type wxPizza, defined in
126 win_gtk.cpp), but there could be any number of widgets, handled by a class.
127 The common rule for all windows is only, that the widget that interacts with
128 the rest of GTK must be referenced in m_widget and all other widgets must be
129 children of this widget on the GTK level. The top-most widget, which also
130 represents the client area, must be in the m_wxwindow field and must be of
131 the type wxPizza.
132
133 As I said, the window classes that display a GTK native widget only have
134 one widget, so in the case of e.g. the wxButton class m_widget holds a
135 pointer to a GtkButton widget. But windows with client areas (for drawing
136 and children) have a m_widget field that is a pointer to a GtkScrolled-
137 Window and a m_wxwindow field that is pointer to a wxPizza and this
138 one is (in the GTK sense) a child of the GtkScrolledWindow.
139
140 If the m_wxwindow field is set, then all input to this widget is inter-
141 cepted and sent to the wxWidgets class. If not, all input to the widget
142 that gets pointed to by m_widget gets intercepted and sent to the class.
143
144 II)
145
146 The design of scrolling in wxWidgets is markedly different from that offered
147 by the GTK itself and therefore we cannot simply take it as it is. In GTK,
148 clicking on a scrollbar belonging to scrolled window will inevitably move
149 the window. In wxWidgets, the scrollbar will only emit an event, send this
150 to (normally) a wxScrolledWindow and that class will call ScrollWindow()
151 which actually moves the window and its sub-windows. Note that wxPizza
152 memorizes how much it has been scrolled but that wxWidgets forgets this
153 so that the two coordinates systems have to be kept in synch. This is done
154 in various places using the pizza->m_scroll_x and pizza->m_scroll_y values.
155
156 III)
157
158 Singularly the most broken code in GTK is the code that is supposed to
159 inform subwindows (child windows) about new positions. Very often, duplicate
160 events are sent without changes in size or position, equally often no
161 events are sent at all (All this is due to a bug in the GtkContainer code
162 which got fixed in GTK 1.2.6). For that reason, wxGTK completely ignores
163 GTK's own system and it simply waits for size events for toplevel windows
164 and then iterates down the respective size events to all window. This has
165 the disadvantage that windows might get size events before the GTK widget
166 actually has the reported size. This doesn't normally pose any problem, but
167 the OpenGL drawing routines rely on correct behaviour. Therefore, I have
168 added the m_nativeSizeEvents flag, which is true only for the OpenGL canvas,
169 i.e. the wxGLCanvas will emit a size event, when (and not before) the X11
170 window that is used for OpenGL output really has that size (as reported by
171 GTK).
172
173 IV)
174
175 If someone at some point of time feels the immense desire to have a look at,
176 change or attempt to optimise the Refresh() logic, this person will need an
177 intimate understanding of what "draw" and "expose" events are and what
178 they are used for, in particular when used in connection with GTK's
179 own windowless widgets. Beware.
180
181 V)
182
183 Cursors, too, have been a constant source of pleasure. The main difficulty
184 is that a GdkWindow inherits a cursor if the programmer sets a new cursor
185 for the parent. To prevent this from doing too much harm, SetCursor calls
186 GTKUpdateCursor, which will recursively re-set the cursors of all child windows.
187 Also don't forget that cursors (like much else) are connected to GdkWindows,
188 not GtkWidgets and that the "window" field of a GtkWidget might very well
189 point to the GdkWindow of the parent widget (-> "window-less widget") and
190 that the two obviously have very different meanings.
191 */
192
193 //-----------------------------------------------------------------------------
194 // data
195 //-----------------------------------------------------------------------------
196
197 // Don't allow event propagation during drag
198 bool g_blockEventsOnDrag;
199 // Don't allow mouse event propagation during scroll
200 bool g_blockEventsOnScroll;
201 extern wxCursor g_globalCursor;
202
203 // mouse capture state: the window which has it and if the mouse is currently
204 // inside it
205 static wxWindowGTK *g_captureWindow = NULL;
206 static bool g_captureWindowHasMouse = false;
207
208 // The window that currently has focus:
209 static wxWindowGTK *gs_currentFocus = NULL;
210 // The window that is scheduled to get focus in the next event loop iteration
211 // or NULL if there's no pending focus change:
212 static wxWindowGTK *gs_pendingFocus = NULL;
213
214 // the window that has deferred focus-out event pending, if any (see
215 // GTKAddDeferredFocusOut() for details)
216 static wxWindowGTK *gs_deferredFocusOut = NULL;
217
218 // global variables because GTK+ DnD want to have the
219 // mouse event that caused it
220 GdkEvent *g_lastMouseEvent = NULL;
221 int g_lastButtonNumber = 0;
222
223 //-----------------------------------------------------------------------------
224 // debug
225 //-----------------------------------------------------------------------------
226
227 // the trace mask used for the focus debugging messages
228 #define TRACE_FOCUS wxT("focus")
229
230 // A handy function to run from under gdb to show information about the given
231 // GtkWidget. Right now it only shows its type, we could enhance it to show
232 // more information later but this is already pretty useful.
233 const char* wxDumpGtkWidget(GtkWidget* w)
234 {
235 static wxString s;
236 s.Printf("GtkWidget %p, type \"%s\"", w, G_OBJECT_TYPE_NAME(w));
237
238 return s.c_str();
239 }
240
241 //-----------------------------------------------------------------------------
242 // "expose_event"/"draw" from m_wxwindow
243 //-----------------------------------------------------------------------------
244
245 extern "C" {
246 #ifdef __WXGTK3__
247 static gboolean draw(GtkWidget*, cairo_t* cr, wxWindow* win)
248 {
249 if (gtk_cairo_should_draw_window(cr, win->GTKGetDrawingWindow()))
250 win->GTKSendPaintEvents(cr);
251
252 return false;
253 }
254 #else // !__WXGTK3__
255 static gboolean expose_event(GtkWidget*, GdkEventExpose* gdk_event, wxWindow* win)
256 {
257 if (gdk_event->window == win->GTKGetDrawingWindow())
258 win->GTKSendPaintEvents(gdk_event->region);
259
260 return false;
261 }
262 #endif // !__WXGTK3__
263 }
264
265 #ifndef __WXUNIVERSAL__
266 //-----------------------------------------------------------------------------
267 // "expose_event"/"draw" from m_wxwindow->parent, for drawing border
268 //-----------------------------------------------------------------------------
269
270 extern "C" {
271 static gboolean
272 #ifdef __WXGTK3__
273 draw_border(GtkWidget*, cairo_t* cr, wxWindow* win)
274 #else
275 draw_border(GtkWidget* widget, GdkEventExpose* gdk_event, wxWindow* win)
276 #endif
277 {
278 #ifdef __WXGTK3__
279 if (!gtk_cairo_should_draw_window(cr, gtk_widget_get_parent_window(win->m_wxwindow)))
280 #else
281 if (gdk_event->window != gtk_widget_get_parent_window(win->m_wxwindow))
282 #endif
283 return false;
284
285 if (!win->IsShown())
286 return false;
287
288 GtkAllocation alloc;
289 gtk_widget_get_allocation(win->m_wxwindow, &alloc);
290 const int x = alloc.x;
291 const int y = alloc.y;
292 const int w = alloc.width;
293 const int h = alloc.height;
294
295 if (w <= 0 || h <= 0)
296 return false;
297
298 if (win->HasFlag(wxBORDER_SIMPLE))
299 {
300 #ifdef __WXGTK3__
301 GtkStyleContext* sc = gtk_widget_get_style_context(win->m_wxwindow);
302 GdkRGBA c;
303 gtk_style_context_get_border_color(sc, GTK_STATE_FLAG_NORMAL, &c);
304 gdk_cairo_set_source_rgba(cr, &c);
305 cairo_set_line_width(cr, 1);
306 cairo_rectangle(cr, x + 0.5, y + 0.5, w - 1, h - 1);
307 cairo_stroke(cr);
308 #else
309 gdk_draw_rectangle(gdk_event->window,
310 gtk_widget_get_style(widget)->black_gc, false, x, y, w - 1, h - 1);
311 #endif
312 }
313 else if (win->HasFlag(wxBORDER_RAISED | wxBORDER_SUNKEN | wxBORDER_THEME))
314 {
315 #ifdef __WXGTK3__
316 //TODO: wxBORDER_RAISED/wxBORDER_SUNKEN
317 GtkStyleContext* sc;
318 if (win->HasFlag(wxHSCROLL | wxVSCROLL))
319 sc = gtk_widget_get_style_context(wxGTKPrivate::GetTreeWidget());
320 else
321 sc = gtk_widget_get_style_context(wxGTKPrivate::GetEntryWidget());
322
323 gtk_render_frame(sc, cr, x, y, w, h);
324 #else // !__WXGTK3__
325 GtkShadowType shadow = GTK_SHADOW_IN;
326 if (win->HasFlag(wxBORDER_RAISED))
327 shadow = GTK_SHADOW_OUT;
328
329 GtkStyle* style;
330 const char* detail;
331 if (win->HasFlag(wxHSCROLL | wxVSCROLL))
332 {
333 style = gtk_widget_get_style(wxGTKPrivate::GetTreeWidget());
334 detail = "viewport";
335 }
336 else
337 {
338 style = gtk_widget_get_style(wxGTKPrivate::GetEntryWidget());
339 detail = "entry";
340 }
341
342 // clip rect is required to avoid painting background
343 // over upper left (w,h) of parent window
344 GdkRectangle clipRect = { x, y, w, h };
345 gtk_paint_shadow(
346 style, gdk_event->window, GTK_STATE_NORMAL,
347 shadow, &clipRect, widget, detail, x, y, w, h);
348 #endif // !__WXGTK3__
349 }
350 return false;
351 }
352 }
353
354 //-----------------------------------------------------------------------------
355 // "parent_set" from m_wxwindow
356 //-----------------------------------------------------------------------------
357
358 extern "C" {
359 static void
360 parent_set(GtkWidget* widget, GtkWidget* old_parent, wxWindow* win)
361 {
362 if (old_parent)
363 {
364 g_signal_handlers_disconnect_by_func(
365 old_parent, (void*)draw_border, win);
366 }
367 GtkWidget* parent = gtk_widget_get_parent(widget);
368 if (parent)
369 {
370 #ifdef __WXGTK3__
371 g_signal_connect_after(parent, "draw", G_CALLBACK(draw_border), win);
372 #else
373 g_signal_connect_after(parent, "expose_event", G_CALLBACK(draw_border), win);
374 #endif
375 }
376 }
377 }
378 #endif // !__WXUNIVERSAL__
379
380 //-----------------------------------------------------------------------------
381 // "key_press_event" from any window
382 //-----------------------------------------------------------------------------
383
384 // set WXTRACE to this to see the key event codes on the console
385 #define TRACE_KEYS wxT("keyevent")
386
387 // translates an X key symbol to WXK_XXX value
388 //
389 // if isChar is true it means that the value returned will be used for EVT_CHAR
390 // event and then we choose the logical WXK_XXX, i.e. '/' for GDK_KP_Divide,
391 // for example, while if it is false it means that the value is going to be
392 // used for KEY_DOWN/UP events and then we translate GDK_KP_Divide to
393 // WXK_NUMPAD_DIVIDE
394 static long wxTranslateKeySymToWXKey(KeySym keysym, bool isChar)
395 {
396 long key_code;
397
398 switch ( keysym )
399 {
400 // Shift, Control and Alt don't generate the CHAR events at all
401 case GDK_Shift_L:
402 case GDK_Shift_R:
403 key_code = isChar ? 0 : WXK_SHIFT;
404 break;
405 case GDK_Control_L:
406 case GDK_Control_R:
407 key_code = isChar ? 0 : WXK_CONTROL;
408 break;
409 case GDK_Meta_L:
410 case GDK_Meta_R:
411 case GDK_Alt_L:
412 case GDK_Alt_R:
413 case GDK_Super_L:
414 case GDK_Super_R:
415 key_code = isChar ? 0 : WXK_ALT;
416 break;
417
418 // neither do the toggle modifies
419 case GDK_Scroll_Lock:
420 key_code = isChar ? 0 : WXK_SCROLL;
421 break;
422
423 case GDK_Caps_Lock:
424 key_code = isChar ? 0 : WXK_CAPITAL;
425 break;
426
427 case GDK_Num_Lock:
428 key_code = isChar ? 0 : WXK_NUMLOCK;
429 break;
430
431
432 // various other special keys
433 case GDK_Menu:
434 key_code = WXK_MENU;
435 break;
436
437 case GDK_Help:
438 key_code = WXK_HELP;
439 break;
440
441 case GDK_BackSpace:
442 key_code = WXK_BACK;
443 break;
444
445 case GDK_ISO_Left_Tab:
446 case GDK_Tab:
447 key_code = WXK_TAB;
448 break;
449
450 case GDK_Linefeed:
451 case GDK_Return:
452 key_code = WXK_RETURN;
453 break;
454
455 case GDK_Clear:
456 key_code = WXK_CLEAR;
457 break;
458
459 case GDK_Pause:
460 key_code = WXK_PAUSE;
461 break;
462
463 case GDK_Select:
464 key_code = WXK_SELECT;
465 break;
466
467 case GDK_Print:
468 key_code = WXK_PRINT;
469 break;
470
471 case GDK_Execute:
472 key_code = WXK_EXECUTE;
473 break;
474
475 case GDK_Escape:
476 key_code = WXK_ESCAPE;
477 break;
478
479 // cursor and other extended keyboard keys
480 case GDK_Delete:
481 key_code = WXK_DELETE;
482 break;
483
484 case GDK_Home:
485 key_code = WXK_HOME;
486 break;
487
488 case GDK_Left:
489 key_code = WXK_LEFT;
490 break;
491
492 case GDK_Up:
493 key_code = WXK_UP;
494 break;
495
496 case GDK_Right:
497 key_code = WXK_RIGHT;
498 break;
499
500 case GDK_Down:
501 key_code = WXK_DOWN;
502 break;
503
504 case GDK_Prior: // == GDK_Page_Up
505 key_code = WXK_PAGEUP;
506 break;
507
508 case GDK_Next: // == GDK_Page_Down
509 key_code = WXK_PAGEDOWN;
510 break;
511
512 case GDK_End:
513 key_code = WXK_END;
514 break;
515
516 case GDK_Begin:
517 key_code = WXK_HOME;
518 break;
519
520 case GDK_Insert:
521 key_code = WXK_INSERT;
522 break;
523
524
525 // numpad keys
526 case GDK_KP_0:
527 case GDK_KP_1:
528 case GDK_KP_2:
529 case GDK_KP_3:
530 case GDK_KP_4:
531 case GDK_KP_5:
532 case GDK_KP_6:
533 case GDK_KP_7:
534 case GDK_KP_8:
535 case GDK_KP_9:
536 key_code = (isChar ? '0' : int(WXK_NUMPAD0)) + keysym - GDK_KP_0;
537 break;
538
539 case GDK_KP_Space:
540 key_code = isChar ? ' ' : int(WXK_NUMPAD_SPACE);
541 break;
542
543 case GDK_KP_Tab:
544 key_code = isChar ? WXK_TAB : WXK_NUMPAD_TAB;
545 break;
546
547 case GDK_KP_Enter:
548 key_code = isChar ? WXK_RETURN : WXK_NUMPAD_ENTER;
549 break;
550
551 case GDK_KP_F1:
552 key_code = isChar ? WXK_F1 : WXK_NUMPAD_F1;
553 break;
554
555 case GDK_KP_F2:
556 key_code = isChar ? WXK_F2 : WXK_NUMPAD_F2;
557 break;
558
559 case GDK_KP_F3:
560 key_code = isChar ? WXK_F3 : WXK_NUMPAD_F3;
561 break;
562
563 case GDK_KP_F4:
564 key_code = isChar ? WXK_F4 : WXK_NUMPAD_F4;
565 break;
566
567 case GDK_KP_Home:
568 key_code = isChar ? WXK_HOME : WXK_NUMPAD_HOME;
569 break;
570
571 case GDK_KP_Left:
572 key_code = isChar ? WXK_LEFT : WXK_NUMPAD_LEFT;
573 break;
574
575 case GDK_KP_Up:
576 key_code = isChar ? WXK_UP : WXK_NUMPAD_UP;
577 break;
578
579 case GDK_KP_Right:
580 key_code = isChar ? WXK_RIGHT : WXK_NUMPAD_RIGHT;
581 break;
582
583 case GDK_KP_Down:
584 key_code = isChar ? WXK_DOWN : WXK_NUMPAD_DOWN;
585 break;
586
587 case GDK_KP_Prior: // == GDK_KP_Page_Up
588 key_code = isChar ? WXK_PAGEUP : WXK_NUMPAD_PAGEUP;
589 break;
590
591 case GDK_KP_Next: // == GDK_KP_Page_Down
592 key_code = isChar ? WXK_PAGEDOWN : WXK_NUMPAD_PAGEDOWN;
593 break;
594
595 case GDK_KP_End:
596 key_code = isChar ? WXK_END : WXK_NUMPAD_END;
597 break;
598
599 case GDK_KP_Begin:
600 key_code = isChar ? WXK_HOME : WXK_NUMPAD_BEGIN;
601 break;
602
603 case GDK_KP_Insert:
604 key_code = isChar ? WXK_INSERT : WXK_NUMPAD_INSERT;
605 break;
606
607 case GDK_KP_Delete:
608 key_code = isChar ? WXK_DELETE : WXK_NUMPAD_DELETE;
609 break;
610
611 case GDK_KP_Equal:
612 key_code = isChar ? '=' : int(WXK_NUMPAD_EQUAL);
613 break;
614
615 case GDK_KP_Multiply:
616 key_code = isChar ? '*' : int(WXK_NUMPAD_MULTIPLY);
617 break;
618
619 case GDK_KP_Add:
620 key_code = isChar ? '+' : int(WXK_NUMPAD_ADD);
621 break;
622
623 case GDK_KP_Separator:
624 // FIXME: what is this?
625 key_code = isChar ? '.' : int(WXK_NUMPAD_SEPARATOR);
626 break;
627
628 case GDK_KP_Subtract:
629 key_code = isChar ? '-' : int(WXK_NUMPAD_SUBTRACT);
630 break;
631
632 case GDK_KP_Decimal:
633 key_code = isChar ? '.' : int(WXK_NUMPAD_DECIMAL);
634 break;
635
636 case GDK_KP_Divide:
637 key_code = isChar ? '/' : int(WXK_NUMPAD_DIVIDE);
638 break;
639
640
641 // function keys
642 case GDK_F1:
643 case GDK_F2:
644 case GDK_F3:
645 case GDK_F4:
646 case GDK_F5:
647 case GDK_F6:
648 case GDK_F7:
649 case GDK_F8:
650 case GDK_F9:
651 case GDK_F10:
652 case GDK_F11:
653 case GDK_F12:
654 key_code = WXK_F1 + keysym - GDK_F1;
655 break;
656
657 default:
658 key_code = 0;
659 }
660
661 return key_code;
662 }
663
664 static inline bool wxIsAsciiKeysym(KeySym ks)
665 {
666 return ks < 256;
667 }
668
669 static void wxFillOtherKeyEventFields(wxKeyEvent& event,
670 wxWindowGTK *win,
671 GdkEventKey *gdk_event)
672 {
673 event.SetTimestamp( gdk_event->time );
674 event.SetId(win->GetId());
675
676 event.m_shiftDown = (gdk_event->state & GDK_SHIFT_MASK) != 0;
677 event.m_controlDown = (gdk_event->state & GDK_CONTROL_MASK) != 0;
678 event.m_altDown = (gdk_event->state & GDK_MOD1_MASK) != 0;
679 event.m_metaDown = (gdk_event->state & GDK_META_MASK) != 0;
680
681 // At least with current Linux systems, MOD5 corresponds to AltGr key and
682 // we represent it, for consistency with Windows, which really allows to
683 // use Ctrl+Alt as a replacement for AltGr if this key is not present, as a
684 // combination of these two modifiers.
685 if ( gdk_event->state & GDK_MOD5_MASK )
686 {
687 event.m_controlDown =
688 event.m_altDown = true;
689 }
690
691 // Normally we take the state of modifiers directly from the low level GDK
692 // event but unfortunately GDK uses a different convention from MSW for the
693 // key events corresponding to the modifier keys themselves: in it, when
694 // e.g. Shift key is pressed, GDK_SHIFT_MASK is not set while it is set
695 // when Shift is released. Under MSW the situation is exactly reversed and
696 // the modifier corresponding to the key is set when it is pressed and
697 // unset when it is released. To ensure consistent behaviour between
698 // platforms (and because it seems to make slightly more sense, although
699 // arguably both behaviours are reasonable) we follow MSW here.
700 //
701 // Final notice: we set the flags to the desired value instead of just
702 // inverting them because they are not set correctly (i.e. in the same way
703 // as for the real events generated by the user) for wxUIActionSimulator-
704 // produced events and it seems better to keep that class code the same
705 // among all platforms and fix the discrepancy here instead of adding
706 // wxGTK-specific code to wxUIActionSimulator.
707 const bool isPress = gdk_event->type == GDK_KEY_PRESS;
708 switch ( gdk_event->keyval )
709 {
710 case GDK_Shift_L:
711 case GDK_Shift_R:
712 event.m_shiftDown = isPress;
713 break;
714
715 case GDK_Control_L:
716 case GDK_Control_R:
717 event.m_controlDown = isPress;
718 break;
719
720 case GDK_Alt_L:
721 case GDK_Alt_R:
722 event.m_altDown = isPress;
723 break;
724
725 case GDK_Meta_L:
726 case GDK_Meta_R:
727 case GDK_Super_L:
728 case GDK_Super_R:
729 event.m_metaDown = isPress;
730 break;
731 }
732
733 event.m_rawCode = (wxUint32) gdk_event->keyval;
734 event.m_rawFlags = gdk_event->hardware_keycode;
735
736 event.SetEventObject( win );
737 }
738
739
740 static bool
741 wxTranslateGTKKeyEventToWx(wxKeyEvent& event,
742 wxWindowGTK *win,
743 GdkEventKey *gdk_event)
744 {
745 // VZ: it seems that GDK_KEY_RELEASE event doesn't set event->string
746 // but only event->keyval which is quite useless to us, so remember
747 // the last character from GDK_KEY_PRESS and reuse it as last resort
748 //
749 // NB: should be MT-safe as we're always called from the main thread only
750 static struct
751 {
752 KeySym keysym;
753 long keycode;
754 } s_lastKeyPress = { 0, 0 };
755
756 KeySym keysym = gdk_event->keyval;
757
758 wxLogTrace(TRACE_KEYS, wxT("Key %s event: keysym = %ld"),
759 event.GetEventType() == wxEVT_KEY_UP ? wxT("release")
760 : wxT("press"),
761 keysym);
762
763 long key_code = wxTranslateKeySymToWXKey(keysym, false /* !isChar */);
764
765 if ( !key_code )
766 {
767 // do we have the translation or is it a plain ASCII character?
768 if ( (gdk_event->length == 1) || wxIsAsciiKeysym(keysym) )
769 {
770 // we should use keysym if it is ASCII as X does some translations
771 // like "I pressed while Control is down" => "Ctrl-I" == "TAB"
772 // which we don't want here (but which we do use for OnChar())
773 if ( !wxIsAsciiKeysym(keysym) )
774 {
775 keysym = (KeySym)gdk_event->string[0];
776 }
777
778 #ifdef GDK_WINDOWING_X11
779 // we want to always get the same key code when the same key is
780 // pressed regardless of the state of the modifiers, i.e. on a
781 // standard US keyboard pressing '5' or '%' ('5' key with
782 // Shift) should result in the same key code in OnKeyDown():
783 // '5' (although OnChar() will get either '5' or '%').
784 //
785 // to do it we first translate keysym to keycode (== scan code)
786 // and then back but always using the lower register
787 Display *dpy = (Display *)wxGetDisplay();
788 KeyCode keycode = XKeysymToKeycode(dpy, keysym);
789
790 wxLogTrace(TRACE_KEYS, wxT("\t-> keycode %d"), keycode);
791
792 #ifdef HAVE_X11_XKBLIB_H
793 KeySym keysymNormalized = XkbKeycodeToKeysym(dpy, keycode, 0, 0);
794 #else
795 KeySym keysymNormalized = XKeycodeToKeysym(dpy, keycode, 0);
796 #endif
797
798 // use the normalized, i.e. lower register, keysym if we've
799 // got one
800 key_code = keysymNormalized ? keysymNormalized : keysym;
801 #else
802 key_code = keysym;
803 #endif
804
805 // as explained above, we want to have lower register key codes
806 // normally but for the letter keys we want to have the upper ones
807 //
808 // NB: don't use XConvertCase() here, we want to do it for letters
809 // only
810 key_code = toupper(key_code);
811 }
812 else // non ASCII key, what to do?
813 {
814 // by default, ignore it
815 key_code = 0;
816
817 // but if we have cached information from the last KEY_PRESS
818 if ( gdk_event->type == GDK_KEY_RELEASE )
819 {
820 // then reuse it
821 if ( keysym == s_lastKeyPress.keysym )
822 {
823 key_code = s_lastKeyPress.keycode;
824 }
825 }
826 }
827
828 if ( gdk_event->type == GDK_KEY_PRESS )
829 {
830 // remember it to be reused for KEY_UP event later
831 s_lastKeyPress.keysym = keysym;
832 s_lastKeyPress.keycode = key_code;
833 }
834 }
835
836 wxLogTrace(TRACE_KEYS, wxT("\t-> wxKeyCode %ld"), key_code);
837
838 // sending unknown key events doesn't really make sense
839 if ( !key_code )
840 return false;
841
842 event.m_keyCode = key_code;
843
844 #if wxUSE_UNICODE
845 event.m_uniChar = gdk_keyval_to_unicode(key_code ? key_code : keysym);
846 if ( !event.m_uniChar && event.m_keyCode <= WXK_DELETE )
847 {
848 // Set Unicode key code to the ASCII equivalent for compatibility. E.g.
849 // let RETURN generate the key event with both key and Unicode key
850 // codes of 13.
851 event.m_uniChar = event.m_keyCode;
852 }
853 #endif // wxUSE_UNICODE
854
855 // now fill all the other fields
856 wxFillOtherKeyEventFields(event, win, gdk_event);
857
858 return true;
859 }
860
861
862 struct wxGtkIMData
863 {
864 GtkIMContext *context;
865 GdkEventKey *lastKeyEvent;
866
867 wxGtkIMData()
868 {
869 context = gtk_im_multicontext_new();
870 lastKeyEvent = NULL;
871 }
872 ~wxGtkIMData()
873 {
874 g_object_unref (context);
875 }
876 };
877
878 namespace
879 {
880
881 // Send wxEVT_CHAR_HOOK event to the parent of the window and return true only
882 // if it was processed (and not skipped).
883 bool SendCharHookEvent(const wxKeyEvent& event, wxWindow *win)
884 {
885 // wxEVT_CHAR_HOOK must be sent to allow the parent windows (e.g. a dialog
886 // which typically closes when Esc key is pressed in any of its controls)
887 // to handle key events in all of its children unless the mouse is captured
888 // in which case we consider that the keyboard should be "captured" too.
889 if ( !g_captureWindow )
890 {
891 wxKeyEvent eventCharHook(wxEVT_CHAR_HOOK, event);
892 if ( win->HandleWindowEvent(eventCharHook)
893 && !event.IsNextEventAllowed() )
894 return true;
895 }
896
897 return false;
898 }
899
900 // Adjust wxEVT_CHAR event key code fields. This function takes care of two
901 // conventions:
902 // (a) Ctrl-letter key presses generate key codes in range 1..26
903 // (b) Unicode key codes are same as key codes for the codes in 1..255 range
904 void AdjustCharEventKeyCodes(wxKeyEvent& event)
905 {
906 const int code = event.m_keyCode;
907
908 // Check for (a) above.
909 if ( event.ControlDown() )
910 {
911 // We intentionally don't use isupper/lower() here, we really need
912 // ASCII letters only as it doesn't make sense to translate any other
913 // ones into this range which has only 26 slots.
914 if ( code >= 'a' && code <= 'z' )
915 event.m_keyCode = code - 'a' + 1;
916 else if ( code >= 'A' && code <= 'Z' )
917 event.m_keyCode = code - 'A' + 1;
918
919 #if wxUSE_UNICODE
920 // Adjust the Unicode equivalent in the same way too.
921 if ( event.m_keyCode != code )
922 event.m_uniChar = event.m_keyCode;
923 #endif // wxUSE_UNICODE
924 }
925
926 #if wxUSE_UNICODE
927 // Check for (b) from above.
928 //
929 // FIXME: Should we do it for key codes up to 255?
930 if ( !event.m_uniChar && code < WXK_DELETE )
931 event.m_uniChar = code;
932 #endif // wxUSE_UNICODE
933 }
934
935 } // anonymous namespace
936
937 // If a widget does not handle a key or mouse event, GTK+ sends it up the
938 // parent chain until it is handled. These events are not supposed to propagate
939 // in wxWidgets, so this code avoids handling them in any parent wxWindow,
940 // while still allowing the event to propagate so things like native keyboard
941 // navigation will work.
942 #define wxPROCESS_EVENT_ONCE(EventType, event) \
943 static EventType eventPrev; \
944 if (memcmp(&eventPrev, event, sizeof(EventType)) == 0) \
945 return false; \
946 eventPrev = *event
947
948 extern "C" {
949 static gboolean
950 gtk_window_key_press_callback( GtkWidget *WXUNUSED(widget),
951 GdkEventKey *gdk_event,
952 wxWindow *win )
953 {
954 if (g_blockEventsOnDrag)
955 return FALSE;
956
957 wxPROCESS_EVENT_ONCE(GdkEventKey, gdk_event);
958
959 wxKeyEvent event( wxEVT_KEY_DOWN );
960 bool ret = false;
961 bool return_after_IM = false;
962
963 if( wxTranslateGTKKeyEventToWx(event, win, gdk_event) )
964 {
965 // Send the CHAR_HOOK event first
966 if ( SendCharHookEvent(event, win) )
967 {
968 // Don't do anything at all with this event any more.
969 return TRUE;
970 }
971
972 // Next check for accelerators.
973 #if wxUSE_ACCEL
974 wxWindowGTK *ancestor = win;
975 while (ancestor)
976 {
977 int command = ancestor->GetAcceleratorTable()->GetCommand( event );
978 if (command != -1)
979 {
980 wxCommandEvent menu_event( wxEVT_COMMAND_MENU_SELECTED, command );
981 ret = ancestor->HandleWindowEvent( menu_event );
982
983 if ( !ret )
984 {
985 // if the accelerator wasn't handled as menu event, try
986 // it as button click (for compatibility with other
987 // platforms):
988 wxCommandEvent button_event( wxEVT_COMMAND_BUTTON_CLICKED, command );
989 ret = ancestor->HandleWindowEvent( button_event );
990 }
991
992 break;
993 }
994 if (ancestor->IsTopLevel())
995 break;
996 ancestor = ancestor->GetParent();
997 }
998 #endif // wxUSE_ACCEL
999
1000 // If not an accelerator, then emit KEY_DOWN event
1001 if ( !ret )
1002 ret = win->HandleWindowEvent( event );
1003 }
1004 else
1005 {
1006 // Return after IM processing as we cannot do
1007 // anything with it anyhow.
1008 return_after_IM = true;
1009 }
1010
1011 if (!ret && win->m_imData)
1012 {
1013 win->m_imData->lastKeyEvent = gdk_event;
1014
1015 // We should let GTK+ IM filter key event first. According to GTK+ 2.0 API
1016 // docs, if IM filter returns true, no further processing should be done.
1017 // we should send the key_down event anyway.
1018 bool intercepted_by_IM =
1019 gtk_im_context_filter_keypress(win->m_imData->context, gdk_event) != 0;
1020 win->m_imData->lastKeyEvent = NULL;
1021 if (intercepted_by_IM)
1022 {
1023 wxLogTrace(TRACE_KEYS, wxT("Key event intercepted by IM"));
1024 return TRUE;
1025 }
1026 }
1027
1028 if (return_after_IM)
1029 return FALSE;
1030
1031 // Only send wxEVT_CHAR event if not processed yet. Thus, ALT-x
1032 // will only be sent if it is not in an accelerator table.
1033 if (!ret)
1034 {
1035 KeySym keysym = gdk_event->keyval;
1036 // Find key code for EVT_CHAR and EVT_CHAR_HOOK events
1037 long key_code = wxTranslateKeySymToWXKey(keysym, true /* isChar */);
1038 if ( !key_code )
1039 {
1040 if ( wxIsAsciiKeysym(keysym) )
1041 {
1042 // ASCII key
1043 key_code = (unsigned char)keysym;
1044 }
1045 // gdk_event->string is actually deprecated
1046 else if ( gdk_event->length == 1 )
1047 {
1048 key_code = (unsigned char)gdk_event->string[0];
1049 }
1050 }
1051
1052 if ( key_code )
1053 {
1054 wxKeyEvent eventChar(wxEVT_CHAR, event);
1055
1056 wxLogTrace(TRACE_KEYS, wxT("Char event: %ld"), key_code);
1057
1058 eventChar.m_keyCode = key_code;
1059 #if wxUSE_UNICODE
1060 eventChar.m_uniChar = gdk_keyval_to_unicode(key_code);
1061 #endif // wxUSE_UNICODE
1062
1063 AdjustCharEventKeyCodes(eventChar);
1064
1065 ret = win->HandleWindowEvent(eventChar);
1066 }
1067 }
1068
1069 return ret;
1070 }
1071 }
1072
1073 extern "C" {
1074 static void
1075 gtk_wxwindow_commit_cb (GtkIMContext * WXUNUSED(context),
1076 const gchar *str,
1077 wxWindow *window)
1078 {
1079 wxKeyEvent event( wxEVT_CHAR );
1080
1081 // take modifiers, cursor position, timestamp etc. from the last
1082 // key_press_event that was fed into Input Method:
1083 if (window->m_imData->lastKeyEvent)
1084 {
1085 wxFillOtherKeyEventFields(event,
1086 window, window->m_imData->lastKeyEvent);
1087 }
1088 else
1089 {
1090 event.SetEventObject( window );
1091 }
1092
1093 const wxString data(wxGTK_CONV_BACK_SYS(str));
1094 if( data.empty() )
1095 return;
1096
1097 for( wxString::const_iterator pstr = data.begin(); pstr != data.end(); ++pstr )
1098 {
1099 #if wxUSE_UNICODE
1100 event.m_uniChar = *pstr;
1101 // Backward compatible for ISO-8859-1
1102 event.m_keyCode = *pstr < 256 ? event.m_uniChar : 0;
1103 wxLogTrace(TRACE_KEYS, wxT("IM sent character '%c'"), event.m_uniChar);
1104 #else
1105 event.m_keyCode = (char)*pstr;
1106 #endif // wxUSE_UNICODE
1107
1108 AdjustCharEventKeyCodes(event);
1109
1110 window->HandleWindowEvent(event);
1111 }
1112 }
1113 }
1114
1115
1116 //-----------------------------------------------------------------------------
1117 // "key_release_event" from any window
1118 //-----------------------------------------------------------------------------
1119
1120 extern "C" {
1121 static gboolean
1122 gtk_window_key_release_callback( GtkWidget * WXUNUSED(widget),
1123 GdkEventKey *gdk_event,
1124 wxWindowGTK *win )
1125 {
1126 if (g_blockEventsOnDrag)
1127 return FALSE;
1128
1129 wxPROCESS_EVENT_ONCE(GdkEventKey, gdk_event);
1130
1131 wxKeyEvent event( wxEVT_KEY_UP );
1132 if ( !wxTranslateGTKKeyEventToWx(event, win, gdk_event) )
1133 {
1134 // unknown key pressed, ignore (the event would be useless anyhow)
1135 return FALSE;
1136 }
1137
1138 return win->GTKProcessEvent(event);
1139 }
1140 }
1141
1142 // ============================================================================
1143 // the mouse events
1144 // ============================================================================
1145
1146 // ----------------------------------------------------------------------------
1147 // mouse event processing helpers
1148 // ----------------------------------------------------------------------------
1149
1150 static void AdjustEventButtonState(wxMouseEvent& event)
1151 {
1152 // GDK reports the old state of the button for a button press event, but
1153 // for compatibility with MSW and common sense we want m_leftDown be TRUE
1154 // for a LEFT_DOWN event, not FALSE, so we will invert
1155 // left/right/middleDown for the corresponding click events
1156
1157 if ((event.GetEventType() == wxEVT_LEFT_DOWN) ||
1158 (event.GetEventType() == wxEVT_LEFT_DCLICK) ||
1159 (event.GetEventType() == wxEVT_LEFT_UP))
1160 {
1161 event.m_leftDown = !event.m_leftDown;
1162 return;
1163 }
1164
1165 if ((event.GetEventType() == wxEVT_MIDDLE_DOWN) ||
1166 (event.GetEventType() == wxEVT_MIDDLE_DCLICK) ||
1167 (event.GetEventType() == wxEVT_MIDDLE_UP))
1168 {
1169 event.m_middleDown = !event.m_middleDown;
1170 return;
1171 }
1172
1173 if ((event.GetEventType() == wxEVT_RIGHT_DOWN) ||
1174 (event.GetEventType() == wxEVT_RIGHT_DCLICK) ||
1175 (event.GetEventType() == wxEVT_RIGHT_UP))
1176 {
1177 event.m_rightDown = !event.m_rightDown;
1178 return;
1179 }
1180
1181 if ((event.GetEventType() == wxEVT_AUX1_DOWN) ||
1182 (event.GetEventType() == wxEVT_AUX1_DCLICK))
1183 {
1184 event.m_aux1Down = true;
1185 return;
1186 }
1187
1188 if ((event.GetEventType() == wxEVT_AUX2_DOWN) ||
1189 (event.GetEventType() == wxEVT_AUX2_DCLICK))
1190 {
1191 event.m_aux2Down = true;
1192 return;
1193 }
1194 }
1195
1196 // find the window to send the mouse event to
1197 static
1198 wxWindowGTK *FindWindowForMouseEvent(wxWindowGTK *win, wxCoord& x, wxCoord& y)
1199 {
1200 wxCoord xx = x;
1201 wxCoord yy = y;
1202
1203 if (win->m_wxwindow)
1204 {
1205 wxPizza* pizza = WX_PIZZA(win->m_wxwindow);
1206 xx += pizza->m_scroll_x;
1207 yy += pizza->m_scroll_y;
1208 }
1209
1210 wxWindowList::compatibility_iterator node = win->GetChildren().GetFirst();
1211 while (node)
1212 {
1213 wxWindow* child = static_cast<wxWindow*>(node->GetData());
1214
1215 node = node->GetNext();
1216 if (!child->IsShown())
1217 continue;
1218
1219 if (child->GTKIsTransparentForMouse())
1220 {
1221 // wxStaticBox is transparent in the box itself
1222 int xx1 = child->m_x;
1223 int yy1 = child->m_y;
1224 int xx2 = child->m_x + child->m_width;
1225 int yy2 = child->m_y + child->m_height;
1226
1227 // left
1228 if (((xx >= xx1) && (xx <= xx1+10) && (yy >= yy1) && (yy <= yy2)) ||
1229 // right
1230 ((xx >= xx2-10) && (xx <= xx2) && (yy >= yy1) && (yy <= yy2)) ||
1231 // top
1232 ((xx >= xx1) && (xx <= xx2) && (yy >= yy1) && (yy <= yy1+10)) ||
1233 // bottom
1234 ((xx >= xx1) && (xx <= xx2) && (yy >= yy2-1) && (yy <= yy2)))
1235 {
1236 win = child;
1237 x -= child->m_x;
1238 y -= child->m_y;
1239 break;
1240 }
1241
1242 }
1243 else
1244 {
1245 if ((child->m_wxwindow == NULL) &&
1246 win->IsClientAreaChild(child) &&
1247 (child->m_x <= xx) &&
1248 (child->m_y <= yy) &&
1249 (child->m_x+child->m_width >= xx) &&
1250 (child->m_y+child->m_height >= yy))
1251 {
1252 win = child;
1253 x -= child->m_x;
1254 y -= child->m_y;
1255 break;
1256 }
1257 }
1258 }
1259
1260 return win;
1261 }
1262
1263 // ----------------------------------------------------------------------------
1264 // common event handlers helpers
1265 // ----------------------------------------------------------------------------
1266
1267 bool wxWindowGTK::GTKProcessEvent(wxEvent& event) const
1268 {
1269 // nothing special at this level
1270 return HandleWindowEvent(event);
1271 }
1272
1273 bool wxWindowGTK::GTKShouldIgnoreEvent() const
1274 {
1275 return g_blockEventsOnDrag;
1276 }
1277
1278 int wxWindowGTK::GTKCallbackCommonPrologue(GdkEventAny *event) const
1279 {
1280 if (g_blockEventsOnDrag)
1281 return TRUE;
1282 if (g_blockEventsOnScroll)
1283 return TRUE;
1284
1285 if (!GTKIsOwnWindow(event->window))
1286 return FALSE;
1287
1288 return -1;
1289 }
1290
1291 // overloads for all GDK event types we use here: we need to have this as
1292 // GdkEventXXX can't be implicitly cast to GdkEventAny even if it, in fact,
1293 // derives from it in the sense that the structs have the same layout
1294 #define wxDEFINE_COMMON_PROLOGUE_OVERLOAD(T) \
1295 static int wxGtkCallbackCommonPrologue(T *event, wxWindowGTK *win) \
1296 { \
1297 return win->GTKCallbackCommonPrologue((GdkEventAny *)event); \
1298 }
1299
1300 wxDEFINE_COMMON_PROLOGUE_OVERLOAD(GdkEventButton)
1301 wxDEFINE_COMMON_PROLOGUE_OVERLOAD(GdkEventMotion)
1302 wxDEFINE_COMMON_PROLOGUE_OVERLOAD(GdkEventCrossing)
1303
1304 #undef wxDEFINE_COMMON_PROLOGUE_OVERLOAD
1305
1306 #define wxCOMMON_CALLBACK_PROLOGUE(event, win) \
1307 const int rc = wxGtkCallbackCommonPrologue(event, win); \
1308 if ( rc != -1 ) \
1309 return rc
1310
1311 // all event handlers must have C linkage as they're called from GTK+ C code
1312 extern "C"
1313 {
1314
1315 //-----------------------------------------------------------------------------
1316 // "button_press_event"
1317 //-----------------------------------------------------------------------------
1318
1319 static gboolean
1320 gtk_window_button_press_callback( GtkWidget* WXUNUSED_IN_GTK3(widget),
1321 GdkEventButton *gdk_event,
1322 wxWindowGTK *win )
1323 {
1324 wxPROCESS_EVENT_ONCE(GdkEventButton, gdk_event);
1325
1326 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1327
1328 g_lastButtonNumber = gdk_event->button;
1329
1330 wxEventType event_type;
1331 wxEventType down;
1332 wxEventType dclick;
1333 switch (gdk_event->button)
1334 {
1335 case 1:
1336 down = wxEVT_LEFT_DOWN;
1337 dclick = wxEVT_LEFT_DCLICK;
1338 break;
1339 case 2:
1340 down = wxEVT_MIDDLE_DOWN;
1341 dclick = wxEVT_MIDDLE_DCLICK;
1342 break;
1343 case 3:
1344 down = wxEVT_RIGHT_DOWN;
1345 dclick = wxEVT_RIGHT_DCLICK;
1346 break;
1347 case 8:
1348 down = wxEVT_AUX1_DOWN;
1349 dclick = wxEVT_AUX1_DCLICK;
1350 break;
1351 case 9:
1352 down = wxEVT_AUX2_DOWN;
1353 dclick = wxEVT_AUX2_DCLICK;
1354 break;
1355 default:
1356 return false;
1357 }
1358 switch (gdk_event->type)
1359 {
1360 case GDK_BUTTON_PRESS:
1361 event_type = down;
1362 // GDK sends surplus button down events
1363 // before a double click event. We
1364 // need to filter these out.
1365 if (win->m_wxwindow)
1366 {
1367 GdkEvent* peek_event = gdk_event_peek();
1368 if (peek_event)
1369 {
1370 const GdkEventType peek_event_type = peek_event->type;
1371 gdk_event_free(peek_event);
1372 if (peek_event_type == GDK_2BUTTON_PRESS ||
1373 peek_event_type == GDK_3BUTTON_PRESS)
1374 {
1375 return true;
1376 }
1377 }
1378 }
1379 break;
1380 case GDK_2BUTTON_PRESS:
1381 event_type = dclick;
1382 #ifndef __WXGTK3__
1383 if (gdk_event->button >= 1 && gdk_event->button <= 3)
1384 {
1385 // Reset GDK internal timestamp variables in order to disable GDK
1386 // triple click events. GDK will then next time believe no button has
1387 // been clicked just before, and send a normal button click event.
1388 GdkDisplay* display = gtk_widget_get_display(widget);
1389 display->button_click_time[1] = 0;
1390 display->button_click_time[0] = 0;
1391 }
1392 #endif // !__WXGTK3__
1393 break;
1394 // we shouldn't get triple clicks at all for GTK2 because we
1395 // suppress them artificially using the code above but we still
1396 // should map them to something for GTK3 and not just ignore them
1397 // as this would lose clicks
1398 case GDK_3BUTTON_PRESS:
1399 event_type = down;
1400 break;
1401 default:
1402 return false;
1403 }
1404
1405 g_lastMouseEvent = (GdkEvent*) gdk_event;
1406
1407 wxMouseEvent event( event_type );
1408 InitMouseEvent( win, event, gdk_event );
1409
1410 AdjustEventButtonState(event);
1411
1412 // find the correct window to send the event to: it may be a different one
1413 // from the one which got it at GTK+ level because some controls don't have
1414 // their own X window and thus cannot get any events.
1415 if ( !g_captureWindow )
1416 win = FindWindowForMouseEvent(win, event.m_x, event.m_y);
1417
1418 // reset the event object and id in case win changed.
1419 event.SetEventObject( win );
1420 event.SetId( win->GetId() );
1421
1422 bool ret = win->GTKProcessEvent( event );
1423 g_lastMouseEvent = NULL;
1424 if ( ret )
1425 return TRUE;
1426
1427 if ((event_type == wxEVT_LEFT_DOWN) && !win->IsOfStandardClass() &&
1428 (gs_currentFocus != win) /* && win->IsFocusable() */)
1429 {
1430 win->SetFocus();
1431 }
1432
1433 if (event_type == wxEVT_RIGHT_DOWN)
1434 {
1435 // generate a "context menu" event: this is similar to right mouse
1436 // click under many GUIs except that it is generated differently
1437 // (right up under MSW, ctrl-click under Mac, right down here) and
1438 //
1439 // (a) it's a command event and so is propagated to the parent
1440 // (b) under some ports it can be generated from kbd too
1441 // (c) it uses screen coords (because of (a))
1442 wxContextMenuEvent evtCtx(
1443 wxEVT_CONTEXT_MENU,
1444 win->GetId(),
1445 win->ClientToScreen(event.GetPosition()));
1446 evtCtx.SetEventObject(win);
1447 return win->GTKProcessEvent(evtCtx);
1448 }
1449
1450 return FALSE;
1451 }
1452
1453 //-----------------------------------------------------------------------------
1454 // "button_release_event"
1455 //-----------------------------------------------------------------------------
1456
1457 static gboolean
1458 gtk_window_button_release_callback( GtkWidget *WXUNUSED(widget),
1459 GdkEventButton *gdk_event,
1460 wxWindowGTK *win )
1461 {
1462 wxPROCESS_EVENT_ONCE(GdkEventButton, gdk_event);
1463
1464 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1465
1466 g_lastButtonNumber = 0;
1467
1468 wxEventType event_type = wxEVT_NULL;
1469
1470 switch (gdk_event->button)
1471 {
1472 case 1:
1473 event_type = wxEVT_LEFT_UP;
1474 break;
1475
1476 case 2:
1477 event_type = wxEVT_MIDDLE_UP;
1478 break;
1479
1480 case 3:
1481 event_type = wxEVT_RIGHT_UP;
1482 break;
1483
1484 case 8:
1485 event_type = wxEVT_AUX1_UP;
1486 break;
1487
1488 case 9:
1489 event_type = wxEVT_AUX2_UP;
1490 break;
1491
1492 default:
1493 // unknown button, don't process
1494 return FALSE;
1495 }
1496
1497 g_lastMouseEvent = (GdkEvent*) gdk_event;
1498
1499 wxMouseEvent event( event_type );
1500 InitMouseEvent( win, event, gdk_event );
1501
1502 AdjustEventButtonState(event);
1503
1504 if ( !g_captureWindow )
1505 win = FindWindowForMouseEvent(win, event.m_x, event.m_y);
1506
1507 // reset the event object and id in case win changed.
1508 event.SetEventObject( win );
1509 event.SetId( win->GetId() );
1510
1511 bool ret = win->GTKProcessEvent(event);
1512
1513 g_lastMouseEvent = NULL;
1514
1515 return ret;
1516 }
1517
1518 //-----------------------------------------------------------------------------
1519 // "motion_notify_event"
1520 //-----------------------------------------------------------------------------
1521
1522 static gboolean
1523 gtk_window_motion_notify_callback( GtkWidget * WXUNUSED(widget),
1524 GdkEventMotion *gdk_event,
1525 wxWindowGTK *win )
1526 {
1527 wxPROCESS_EVENT_ONCE(GdkEventMotion, gdk_event);
1528
1529 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1530
1531 if (gdk_event->is_hint)
1532 {
1533 int x = 0;
1534 int y = 0;
1535 GdkModifierType state;
1536 gdk_window_get_pointer(gdk_event->window, &x, &y, &state);
1537 gdk_event->x = x;
1538 gdk_event->y = y;
1539 }
1540
1541 g_lastMouseEvent = (GdkEvent*) gdk_event;
1542
1543 wxMouseEvent event( wxEVT_MOTION );
1544 InitMouseEvent(win, event, gdk_event);
1545
1546 if ( g_captureWindow )
1547 {
1548 // synthesise a mouse enter or leave event if needed
1549 GdkWindow *winUnderMouse = gdk_window_at_pointer(NULL, NULL);
1550 // This seems to be necessary and actually been added to
1551 // GDK itself in version 2.0.X
1552 gdk_flush();
1553
1554 bool hasMouse = winUnderMouse == gdk_event->window;
1555 if ( hasMouse != g_captureWindowHasMouse )
1556 {
1557 // the mouse changed window
1558 g_captureWindowHasMouse = hasMouse;
1559
1560 wxMouseEvent eventM(g_captureWindowHasMouse ? wxEVT_ENTER_WINDOW
1561 : wxEVT_LEAVE_WINDOW);
1562 InitMouseEvent(win, eventM, gdk_event);
1563 eventM.SetEventObject(win);
1564 win->GTKProcessEvent(eventM);
1565 }
1566 }
1567 else // no capture
1568 {
1569 win = FindWindowForMouseEvent(win, event.m_x, event.m_y);
1570
1571 // reset the event object and id in case win changed.
1572 event.SetEventObject( win );
1573 event.SetId( win->GetId() );
1574 }
1575
1576 if ( !g_captureWindow )
1577 {
1578 wxSetCursorEvent cevent( event.m_x, event.m_y );
1579 if (win->GTKProcessEvent( cevent ))
1580 {
1581 win->SetCursor( cevent.GetCursor() );
1582 }
1583 }
1584
1585 bool ret = win->GTKProcessEvent(event);
1586
1587 g_lastMouseEvent = NULL;
1588
1589 return ret;
1590 }
1591
1592 //-----------------------------------------------------------------------------
1593 // "scroll_event" (mouse wheel event)
1594 //-----------------------------------------------------------------------------
1595
1596 static gboolean
1597 window_scroll_event_hscrollbar(GtkWidget*, GdkEventScroll* gdk_event, wxWindow* win)
1598 {
1599 if (gdk_event->direction != GDK_SCROLL_LEFT &&
1600 gdk_event->direction != GDK_SCROLL_RIGHT)
1601 {
1602 return false;
1603 }
1604
1605 GtkRange *range = win->m_scrollBar[wxWindow::ScrollDir_Horz];
1606
1607 if (range && gtk_widget_get_visible(GTK_WIDGET(range)))
1608 {
1609 GtkAdjustment* adj = gtk_range_get_adjustment(range);
1610 double delta = gtk_adjustment_get_step_increment(adj) * 3;
1611 if (gdk_event->direction == GDK_SCROLL_LEFT)
1612 delta = -delta;
1613
1614 gtk_range_set_value(range, gtk_adjustment_get_value(adj) + delta);
1615
1616 return TRUE;
1617 }
1618
1619 return FALSE;
1620 }
1621
1622 static gboolean
1623 window_scroll_event(GtkWidget*, GdkEventScroll* gdk_event, wxWindow* win)
1624 {
1625 wxMouseEvent event(wxEVT_MOUSEWHEEL);
1626 InitMouseEvent(win, event, gdk_event);
1627
1628 // FIXME: Get these values from GTK or GDK
1629 event.m_linesPerAction = 3;
1630 event.m_wheelDelta = 120;
1631
1632 // Determine the scroll direction.
1633 switch (gdk_event->direction)
1634 {
1635 case GDK_SCROLL_UP:
1636 case GDK_SCROLL_RIGHT:
1637 event.m_wheelRotation = 120;
1638 break;
1639
1640 case GDK_SCROLL_DOWN:
1641 case GDK_SCROLL_LEFT:
1642 event.m_wheelRotation = -120;
1643 break;
1644
1645 default:
1646 return false; // Unknown/unhandled direction
1647 }
1648
1649 // And the scroll axis.
1650 switch (gdk_event->direction)
1651 {
1652 case GDK_SCROLL_UP:
1653 case GDK_SCROLL_DOWN:
1654 event.m_wheelAxis = wxMOUSE_WHEEL_VERTICAL;
1655 break;
1656
1657 case GDK_SCROLL_LEFT:
1658 case GDK_SCROLL_RIGHT:
1659 event.m_wheelAxis = wxMOUSE_WHEEL_HORIZONTAL;
1660 break;
1661 }
1662
1663 if (win->GTKProcessEvent(event))
1664 return TRUE;
1665
1666 GtkRange *range = win->m_scrollBar[wxWindow::ScrollDir_Vert];
1667
1668 if (range && gtk_widget_get_visible(GTK_WIDGET(range)))
1669 {
1670 GtkAdjustment* adj = gtk_range_get_adjustment(range);
1671 double delta = gtk_adjustment_get_step_increment(adj) * 3;
1672 if (gdk_event->direction == GDK_SCROLL_UP)
1673 delta = -delta;
1674
1675 gtk_range_set_value(range, gtk_adjustment_get_value(adj) + delta);
1676
1677 return TRUE;
1678 }
1679
1680 return FALSE;
1681 }
1682
1683 //-----------------------------------------------------------------------------
1684 // "popup-menu"
1685 //-----------------------------------------------------------------------------
1686
1687 static gboolean wxgtk_window_popup_menu_callback(GtkWidget*, wxWindowGTK* win)
1688 {
1689 wxContextMenuEvent event(wxEVT_CONTEXT_MENU, win->GetId(), wxPoint(-1, -1));
1690 event.SetEventObject(win);
1691 return win->GTKProcessEvent(event);
1692 }
1693
1694 //-----------------------------------------------------------------------------
1695 // "focus_in_event"
1696 //-----------------------------------------------------------------------------
1697
1698 static gboolean
1699 gtk_window_focus_in_callback( GtkWidget * WXUNUSED(widget),
1700 GdkEventFocus *WXUNUSED(event),
1701 wxWindowGTK *win )
1702 {
1703 return win->GTKHandleFocusIn();
1704 }
1705
1706 //-----------------------------------------------------------------------------
1707 // "focus_out_event"
1708 //-----------------------------------------------------------------------------
1709
1710 static gboolean
1711 gtk_window_focus_out_callback( GtkWidget * WXUNUSED(widget),
1712 GdkEventFocus * WXUNUSED(gdk_event),
1713 wxWindowGTK *win )
1714 {
1715 return win->GTKHandleFocusOut();
1716 }
1717
1718 //-----------------------------------------------------------------------------
1719 // "focus"
1720 //-----------------------------------------------------------------------------
1721
1722 static gboolean
1723 wx_window_focus_callback(GtkWidget *widget,
1724 GtkDirectionType WXUNUSED(direction),
1725 wxWindowGTK *win)
1726 {
1727 // the default handler for focus signal in GtkScrolledWindow sets
1728 // focus to the window itself even if it doesn't accept focus, i.e. has no
1729 // GTK_CAN_FOCUS in its style -- work around this by forcibly preventing
1730 // the signal from reaching gtk_scrolled_window_focus() if we don't have
1731 // any children which might accept focus (we know we don't accept the focus
1732 // ourselves as this signal is only connected in this case)
1733 if ( win->GetChildren().empty() )
1734 g_signal_stop_emission_by_name(widget, "focus");
1735
1736 // we didn't change the focus
1737 return FALSE;
1738 }
1739
1740 //-----------------------------------------------------------------------------
1741 // "enter_notify_event"
1742 //-----------------------------------------------------------------------------
1743
1744 static gboolean
1745 gtk_window_enter_callback( GtkWidget *widget,
1746 GdkEventCrossing *gdk_event,
1747 wxWindowGTK *win )
1748 {
1749 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1750
1751 // Event was emitted after a grab
1752 if (gdk_event->mode != GDK_CROSSING_NORMAL) return FALSE;
1753
1754 int x = 0;
1755 int y = 0;
1756 GdkModifierType state = (GdkModifierType)0;
1757
1758 gdk_window_get_pointer(gtk_widget_get_window(widget), &x, &y, &state);
1759
1760 wxMouseEvent event( wxEVT_ENTER_WINDOW );
1761 InitMouseEvent(win, event, gdk_event);
1762 wxPoint pt = win->GetClientAreaOrigin();
1763 event.m_x = x + pt.x;
1764 event.m_y = y + pt.y;
1765
1766 if ( !g_captureWindow )
1767 {
1768 wxSetCursorEvent cevent( event.m_x, event.m_y );
1769 if (win->GTKProcessEvent( cevent ))
1770 {
1771 win->SetCursor( cevent.GetCursor() );
1772 }
1773 }
1774
1775 return win->GTKProcessEvent(event);
1776 }
1777
1778 //-----------------------------------------------------------------------------
1779 // "leave_notify_event"
1780 //-----------------------------------------------------------------------------
1781
1782 static gboolean
1783 gtk_window_leave_callback( GtkWidget *widget,
1784 GdkEventCrossing *gdk_event,
1785 wxWindowGTK *win )
1786 {
1787 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1788
1789 // Event was emitted after an ungrab
1790 if (gdk_event->mode != GDK_CROSSING_NORMAL) return FALSE;
1791
1792 wxMouseEvent event( wxEVT_LEAVE_WINDOW );
1793
1794 int x = 0;
1795 int y = 0;
1796 GdkModifierType state = (GdkModifierType)0;
1797
1798 gdk_window_get_pointer(gtk_widget_get_window(widget), &x, &y, &state);
1799
1800 InitMouseEvent(win, event, gdk_event);
1801
1802 return win->GTKProcessEvent(event);
1803 }
1804
1805 //-----------------------------------------------------------------------------
1806 // "value_changed" from scrollbar
1807 //-----------------------------------------------------------------------------
1808
1809 static void
1810 gtk_scrollbar_value_changed(GtkRange* range, wxWindow* win)
1811 {
1812 wxEventType eventType = win->GTKGetScrollEventType(range);
1813 if (eventType != wxEVT_NULL)
1814 {
1815 // Convert scroll event type to scrollwin event type
1816 eventType += wxEVT_SCROLLWIN_TOP - wxEVT_SCROLL_TOP;
1817
1818 // find the scrollbar which generated the event
1819 wxWindowGTK::ScrollDir dir = win->ScrollDirFromRange(range);
1820
1821 // generate the corresponding wx event
1822 const int orient = wxWindow::OrientFromScrollDir(dir);
1823 wxScrollWinEvent event(eventType, win->GetScrollPos(orient), orient);
1824 event.SetEventObject(win);
1825
1826 win->GTKProcessEvent(event);
1827 }
1828 }
1829
1830 //-----------------------------------------------------------------------------
1831 // "button_press_event" from scrollbar
1832 //-----------------------------------------------------------------------------
1833
1834 static gboolean
1835 gtk_scrollbar_button_press_event(GtkRange*, GdkEventButton*, wxWindow* win)
1836 {
1837 g_blockEventsOnScroll = true;
1838 win->m_mouseButtonDown = true;
1839
1840 return false;
1841 }
1842
1843 //-----------------------------------------------------------------------------
1844 // "event_after" from scrollbar
1845 //-----------------------------------------------------------------------------
1846
1847 static void
1848 gtk_scrollbar_event_after(GtkRange* range, GdkEvent* event, wxWindow* win)
1849 {
1850 if (event->type == GDK_BUTTON_RELEASE)
1851 {
1852 g_signal_handlers_block_by_func(range, (void*)gtk_scrollbar_event_after, win);
1853
1854 const int orient = wxWindow::OrientFromScrollDir(
1855 win->ScrollDirFromRange(range));
1856 wxScrollWinEvent evt(wxEVT_SCROLLWIN_THUMBRELEASE,
1857 win->GetScrollPos(orient), orient);
1858 evt.SetEventObject(win);
1859 win->GTKProcessEvent(evt);
1860 }
1861 }
1862
1863 //-----------------------------------------------------------------------------
1864 // "button_release_event" from scrollbar
1865 //-----------------------------------------------------------------------------
1866
1867 static gboolean
1868 gtk_scrollbar_button_release_event(GtkRange* range, GdkEventButton*, wxWindow* win)
1869 {
1870 g_blockEventsOnScroll = false;
1871 win->m_mouseButtonDown = false;
1872 // If thumb tracking
1873 if (win->m_isScrolling)
1874 {
1875 win->m_isScrolling = false;
1876 // Hook up handler to send thumb release event after this emission is finished.
1877 // To allow setting scroll position from event handler, sending event must
1878 // be deferred until after the GtkRange handler for this signal has run
1879 g_signal_handlers_unblock_by_func(range, (void*)gtk_scrollbar_event_after, win);
1880 }
1881
1882 return false;
1883 }
1884
1885 //-----------------------------------------------------------------------------
1886 // "realize" from m_widget
1887 //-----------------------------------------------------------------------------
1888
1889 static void
1890 gtk_window_realized_callback(GtkWidget* WXUNUSED(widget), wxWindowGTK* win)
1891 {
1892 win->GTKHandleRealized();
1893 }
1894
1895 //-----------------------------------------------------------------------------
1896 // "size_allocate" from m_wxwindow or m_widget
1897 //-----------------------------------------------------------------------------
1898
1899 static void
1900 size_allocate(GtkWidget*, GtkAllocation* alloc, wxWindow* win)
1901 {
1902 int w = alloc->width;
1903 int h = alloc->height;
1904 if (win->m_wxwindow)
1905 {
1906 GtkBorder border;
1907 WX_PIZZA(win->m_wxwindow)->get_border(border);
1908 w -= border.left + border.right;
1909 h -= border.top + border.bottom;
1910 if (w < 0) w = 0;
1911 if (h < 0) h = 0;
1912 }
1913 if (win->m_oldClientWidth != w || win->m_oldClientHeight != h)
1914 {
1915 win->m_oldClientWidth = w;
1916 win->m_oldClientHeight = h;
1917 // this callback can be connected to m_wxwindow,
1918 // so always get size from m_widget->allocation
1919 GtkAllocation a;
1920 gtk_widget_get_allocation(win->m_widget, &a);
1921 win->m_width = a.width;
1922 win->m_height = a.height;
1923 if (!win->m_nativeSizeEvent)
1924 {
1925 wxSizeEvent event(win->GetSize(), win->GetId());
1926 event.SetEventObject(win);
1927 win->GTKProcessEvent(event);
1928 }
1929 }
1930 }
1931
1932 //-----------------------------------------------------------------------------
1933 // "grab_broken"
1934 //-----------------------------------------------------------------------------
1935
1936 #if GTK_CHECK_VERSION(2, 8, 0)
1937 static gboolean
1938 gtk_window_grab_broken( GtkWidget*,
1939 GdkEventGrabBroken *event,
1940 wxWindow *win )
1941 {
1942 // Mouse capture has been lost involuntarily, notify the application
1943 if(!event->keyboard && wxWindow::GetCapture() == win)
1944 {
1945 wxMouseCaptureLostEvent evt( win->GetId() );
1946 evt.SetEventObject( win );
1947 win->HandleWindowEvent( evt );
1948 }
1949 return false;
1950 }
1951 #endif
1952
1953 //-----------------------------------------------------------------------------
1954 // "style_set"/"style_updated"
1955 //-----------------------------------------------------------------------------
1956
1957 #ifdef __WXGTK3__
1958 static void style_updated(GtkWidget*, wxWindow* win)
1959 #else
1960 static void style_updated(GtkWidget*, GtkStyle*, wxWindow* win)
1961 #endif
1962 {
1963 if (win->IsTopLevel())
1964 {
1965 wxSysColourChangedEvent event;
1966 event.SetEventObject(win);
1967 win->GTKProcessEvent(event);
1968 }
1969 else
1970 {
1971 // Border width could change, which will change client size.
1972 // Make sure size event occurs for this
1973 win->m_oldClientWidth = 0;
1974 }
1975 }
1976
1977 //-----------------------------------------------------------------------------
1978 // "unrealize"
1979 //-----------------------------------------------------------------------------
1980
1981 static void unrealize(GtkWidget*, wxWindow* win)
1982 {
1983 win->GTKHandleUnrealize();
1984 }
1985
1986 } // extern "C"
1987
1988 void wxWindowGTK::GTKHandleRealized()
1989 {
1990 if (IsFrozen())
1991 DoFreeze();
1992
1993 if (m_imData)
1994 {
1995 gtk_im_context_set_client_window
1996 (
1997 m_imData->context,
1998 m_wxwindow ? GTKGetDrawingWindow()
1999 : gtk_widget_get_window(m_widget)
2000 );
2001 }
2002
2003 // Use composited window if background is transparent, if supported.
2004 if (m_backgroundStyle == wxBG_STYLE_TRANSPARENT)
2005 {
2006 #if wxGTK_HAS_COMPOSITING_SUPPORT
2007 if (IsTransparentBackgroundSupported())
2008 {
2009 GdkWindow* const window = GTKGetDrawingWindow();
2010 if (window)
2011 gdk_window_set_composited(window, true);
2012 }
2013 else
2014 #endif // wxGTK_HAS_COMPOSITING_SUPPORT
2015 {
2016 // We revert to erase mode if transparency is not supported
2017 m_backgroundStyle = wxBG_STYLE_ERASE;
2018 }
2019 }
2020
2021
2022 // We cannot set colours and fonts before the widget
2023 // been realized, so we do this directly after realization
2024 // or otherwise in idle time
2025
2026 if (m_needsStyleChange)
2027 {
2028 SetBackgroundStyle(GetBackgroundStyle());
2029 m_needsStyleChange = false;
2030 }
2031
2032 wxWindowCreateEvent event(static_cast<wxWindow*>(this));
2033 event.SetEventObject( this );
2034 GTKProcessEvent( event );
2035
2036 GTKUpdateCursor(true, false);
2037
2038 if (m_wxwindow &&
2039 (IsTopLevel() || HasFlag(wxBORDER_RAISED | wxBORDER_SUNKEN | wxBORDER_THEME)))
2040 {
2041 // attaching to style changed signal after realization avoids initial
2042 // changes we don't care about
2043 const gchar *detailed_signal =
2044 #ifdef __WXGTK3__
2045 "style_updated";
2046 #else
2047 "style_set";
2048 #endif
2049 g_signal_connect(m_wxwindow,
2050 detailed_signal,
2051 G_CALLBACK(style_updated), this);
2052 }
2053 }
2054
2055 void wxWindowGTK::GTKHandleUnrealize()
2056 {
2057 // unrealizing a frozen window seems to have some lingering effect
2058 // preventing updates to the affected area
2059 if (IsFrozen())
2060 DoThaw();
2061
2062 if (m_wxwindow)
2063 {
2064 if (m_imData)
2065 gtk_im_context_set_client_window(m_imData->context, NULL);
2066
2067 g_signal_handlers_disconnect_by_func(
2068 m_wxwindow, (void*)style_updated, this);
2069 }
2070 }
2071
2072 // ----------------------------------------------------------------------------
2073 // this wxWindowBase function is implemented here (in platform-specific file)
2074 // because it is static and so couldn't be made virtual
2075 // ----------------------------------------------------------------------------
2076
2077 wxWindow *wxWindowBase::DoFindFocus()
2078 {
2079 // For compatibility with wxMSW, pretend that showing a popup menu doesn't
2080 // change the focus and that it remains on the window showing it, even
2081 // though the real focus does change in GTK.
2082 extern wxMenu *wxCurrentPopupMenu;
2083 if ( wxCurrentPopupMenu )
2084 return wxCurrentPopupMenu->GetInvokingWindow();
2085
2086 wxWindowGTK *focus = gs_pendingFocus ? gs_pendingFocus : gs_currentFocus;
2087 // the cast is necessary when we compile in wxUniversal mode
2088 return static_cast<wxWindow*>(focus);
2089 }
2090
2091 void wxWindowGTK::AddChildGTK(wxWindowGTK* child)
2092 {
2093 wxASSERT_MSG(m_wxwindow, "Cannot add a child to a window without a client area");
2094
2095 // the window might have been scrolled already, we
2096 // have to adapt the position
2097 wxPizza* pizza = WX_PIZZA(m_wxwindow);
2098 child->m_x += pizza->m_scroll_x;
2099 child->m_y += pizza->m_scroll_y;
2100
2101 pizza->put(child->m_widget,
2102 child->m_x, child->m_y, child->m_width, child->m_height);
2103 }
2104
2105 //-----------------------------------------------------------------------------
2106 // global functions
2107 //-----------------------------------------------------------------------------
2108
2109 wxWindow *wxGetActiveWindow()
2110 {
2111 return wxWindow::FindFocus();
2112 }
2113
2114
2115 // Under Unix this is implemented using X11 functions in utilsx11.cpp but we
2116 // need to have this function under Windows too, so provide at least a stub.
2117 #ifndef GDK_WINDOWING_X11
2118 bool wxGetKeyState(wxKeyCode WXUNUSED(key))
2119 {
2120 wxFAIL_MSG(wxS("Not implemented under Windows"));
2121 return false;
2122 }
2123 #endif // __WINDOWS__
2124
2125 static void GetMouseState(int& x, int& y, GdkModifierType& mask)
2126 {
2127 wxWindow* tlw = NULL;
2128 if (!wxTopLevelWindows.empty())
2129 tlw = wxTopLevelWindows.front();
2130 GdkDisplay* display;
2131 if (tlw && tlw->m_widget)
2132 display = gtk_widget_get_display(tlw->m_widget);
2133 else
2134 display = gdk_display_get_default();
2135 gdk_display_get_pointer(display, NULL, &x, &y, &mask);
2136 }
2137
2138 wxMouseState wxGetMouseState()
2139 {
2140 wxMouseState ms;
2141
2142 gint x;
2143 gint y;
2144 GdkModifierType mask;
2145
2146 GetMouseState(x, y, mask);
2147
2148 ms.SetX(x);
2149 ms.SetY(y);
2150 ms.SetLeftDown((mask & GDK_BUTTON1_MASK) != 0);
2151 ms.SetMiddleDown((mask & GDK_BUTTON2_MASK) != 0);
2152 ms.SetRightDown((mask & GDK_BUTTON3_MASK) != 0);
2153 // see the comment in InitMouseEvent()
2154 ms.SetAux1Down((mask & GDK_BUTTON4_MASK) != 0);
2155 ms.SetAux2Down((mask & GDK_BUTTON5_MASK) != 0);
2156
2157 ms.SetControlDown((mask & GDK_CONTROL_MASK) != 0);
2158 ms.SetShiftDown((mask & GDK_SHIFT_MASK) != 0);
2159 ms.SetAltDown((mask & GDK_MOD1_MASK) != 0);
2160 ms.SetMetaDown((mask & GDK_META_MASK) != 0);
2161
2162 return ms;
2163 }
2164
2165 //-----------------------------------------------------------------------------
2166 // wxWindowGTK
2167 //-----------------------------------------------------------------------------
2168
2169 // in wxUniv/MSW this class is abstract because it doesn't have DoPopupMenu()
2170 // method
2171 #ifdef __WXUNIVERSAL__
2172 IMPLEMENT_ABSTRACT_CLASS(wxWindowGTK, wxWindowBase)
2173 #endif // __WXUNIVERSAL__
2174
2175 void wxWindowGTK::Init()
2176 {
2177 // GTK specific
2178 m_widget = NULL;
2179 m_wxwindow = NULL;
2180 m_focusWidget = NULL;
2181
2182 // position/size
2183 m_x = 0;
2184 m_y = 0;
2185 m_width = 0;
2186 m_height = 0;
2187
2188 m_showOnIdle = false;
2189
2190 m_noExpose = false;
2191 m_nativeSizeEvent = false;
2192 #ifdef __WXGTK3__
2193 m_paintContext = NULL;
2194 m_styleProvider = NULL;
2195 #endif
2196
2197 m_isScrolling = false;
2198 m_mouseButtonDown = false;
2199
2200 // initialize scrolling stuff
2201 for ( int dir = 0; dir < ScrollDir_Max; dir++ )
2202 {
2203 m_scrollBar[dir] = NULL;
2204 m_scrollPos[dir] = 0;
2205 }
2206
2207 m_oldClientWidth =
2208 m_oldClientHeight = 0;
2209
2210 m_clipPaintRegion = false;
2211
2212 m_needsStyleChange = false;
2213
2214 m_cursor = *wxSTANDARD_CURSOR;
2215
2216 m_imData = NULL;
2217 m_dirtyTabOrder = false;
2218 }
2219
2220 wxWindowGTK::wxWindowGTK()
2221 {
2222 Init();
2223 }
2224
2225 wxWindowGTK::wxWindowGTK( wxWindow *parent,
2226 wxWindowID id,
2227 const wxPoint &pos,
2228 const wxSize &size,
2229 long style,
2230 const wxString &name )
2231 {
2232 Init();
2233
2234 Create( parent, id, pos, size, style, name );
2235 }
2236
2237 void wxWindowGTK::GTKCreateScrolledWindowWith(GtkWidget* view)
2238 {
2239 wxASSERT_MSG( HasFlag(wxHSCROLL) || HasFlag(wxVSCROLL),
2240 wxS("Must not be called if scrolling is not needed.") );
2241
2242 m_widget = gtk_scrolled_window_new( NULL, NULL );
2243
2244 GtkScrolledWindow *scrolledWindow = GTK_SCROLLED_WINDOW(m_widget);
2245
2246 // There is a conflict with default bindings at GTK+
2247 // level between scrolled windows and notebooks both of which want to use
2248 // Ctrl-PageUp/Down: scrolled windows for scrolling in the horizontal
2249 // direction and notebooks for changing pages -- we decide that if we don't
2250 // have wxHSCROLL style we can safely sacrifice horizontal scrolling if it
2251 // means we can get working keyboard navigation in notebooks
2252 if ( !HasFlag(wxHSCROLL) )
2253 {
2254 GtkBindingSet *
2255 bindings = gtk_binding_set_by_class(G_OBJECT_GET_CLASS(m_widget));
2256 if ( bindings )
2257 {
2258 gtk_binding_entry_remove(bindings, GDK_Page_Up, GDK_CONTROL_MASK);
2259 gtk_binding_entry_remove(bindings, GDK_Page_Down, GDK_CONTROL_MASK);
2260 }
2261 }
2262
2263 if (HasFlag(wxALWAYS_SHOW_SB))
2264 {
2265 gtk_scrolled_window_set_policy( scrolledWindow, GTK_POLICY_ALWAYS, GTK_POLICY_ALWAYS );
2266 }
2267 else
2268 {
2269 gtk_scrolled_window_set_policy( scrolledWindow, GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
2270 }
2271
2272 m_scrollBar[ScrollDir_Horz] = GTK_RANGE(gtk_scrolled_window_get_hscrollbar(scrolledWindow));
2273 m_scrollBar[ScrollDir_Vert] = GTK_RANGE(gtk_scrolled_window_get_vscrollbar(scrolledWindow));
2274 if (GetLayoutDirection() == wxLayout_RightToLeft)
2275 gtk_range_set_inverted( m_scrollBar[ScrollDir_Horz], TRUE );
2276
2277 gtk_container_add( GTK_CONTAINER(m_widget), view );
2278
2279 // connect various scroll-related events
2280 for ( int dir = 0; dir < ScrollDir_Max; dir++ )
2281 {
2282 // these handlers block mouse events to any window during scrolling
2283 // such as motion events and prevent GTK and wxWidgets from fighting
2284 // over where the slider should be
2285 g_signal_connect(m_scrollBar[dir], "button_press_event",
2286 G_CALLBACK(gtk_scrollbar_button_press_event), this);
2287 g_signal_connect(m_scrollBar[dir], "button_release_event",
2288 G_CALLBACK(gtk_scrollbar_button_release_event), this);
2289
2290 gulong handler_id = g_signal_connect(m_scrollBar[dir], "event_after",
2291 G_CALLBACK(gtk_scrollbar_event_after), this);
2292 g_signal_handler_block(m_scrollBar[dir], handler_id);
2293
2294 // these handlers get notified when scrollbar slider moves
2295 g_signal_connect_after(m_scrollBar[dir], "value_changed",
2296 G_CALLBACK(gtk_scrollbar_value_changed), this);
2297 }
2298
2299 gtk_widget_show( view );
2300 }
2301
2302 bool wxWindowGTK::Create( wxWindow *parent,
2303 wxWindowID id,
2304 const wxPoint &pos,
2305 const wxSize &size,
2306 long style,
2307 const wxString &name )
2308 {
2309 // Get default border
2310 wxBorder border = GetBorder(style);
2311
2312 style &= ~wxBORDER_MASK;
2313 style |= border;
2314
2315 if (!PreCreation( parent, pos, size ) ||
2316 !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
2317 {
2318 wxFAIL_MSG( wxT("wxWindowGTK creation failed") );
2319 return false;
2320 }
2321
2322 // We should accept the native look
2323 #if 0
2324 GtkScrolledWindowClass *scroll_class = GTK_SCROLLED_WINDOW_CLASS( GTK_OBJECT_GET_CLASS(m_widget) );
2325 scroll_class->scrollbar_spacing = 0;
2326 #endif
2327
2328
2329 m_wxwindow = wxPizza::New(m_windowStyle);
2330 #ifndef __WXUNIVERSAL__
2331 if (HasFlag(wxPizza::BORDER_STYLES))
2332 {
2333 g_signal_connect(m_wxwindow, "parent_set",
2334 G_CALLBACK(parent_set), this);
2335 }
2336 #endif
2337 if (!HasFlag(wxHSCROLL) && !HasFlag(wxVSCROLL))
2338 m_widget = m_wxwindow;
2339 else
2340 GTKCreateScrolledWindowWith(m_wxwindow);
2341 g_object_ref(m_widget);
2342
2343 if (m_parent)
2344 m_parent->DoAddChild( this );
2345
2346 m_focusWidget = m_wxwindow;
2347
2348 SetCanFocus(AcceptsFocus());
2349
2350 PostCreation();
2351
2352 return true;
2353 }
2354
2355 void wxWindowGTK::GTKDisconnect(void* instance)
2356 {
2357 g_signal_handlers_disconnect_matched(instance,
2358 GSignalMatchType(G_SIGNAL_MATCH_DATA), 0, 0, NULL, NULL, this);
2359 }
2360
2361 wxWindowGTK::~wxWindowGTK()
2362 {
2363 SendDestroyEvent();
2364
2365 if (gs_currentFocus == this)
2366 gs_currentFocus = NULL;
2367 if (gs_pendingFocus == this)
2368 gs_pendingFocus = NULL;
2369
2370 if ( gs_deferredFocusOut == this )
2371 gs_deferredFocusOut = NULL;
2372
2373 if (m_widget)
2374 GTKDisconnect(m_widget);
2375 if (m_wxwindow && m_wxwindow != m_widget)
2376 GTKDisconnect(m_wxwindow);
2377
2378 // destroy children before destroying this window itself
2379 DestroyChildren();
2380
2381 if (m_widget)
2382 Show( false );
2383
2384 // delete before the widgets to avoid a crash on solaris
2385 delete m_imData;
2386 m_imData = NULL;
2387
2388 // avoid problem with GTK+ 2.18 where a frozen window causes the whole
2389 // TLW to be frozen, and if the window is then destroyed, nothing ever
2390 // gets painted again
2391 while (IsFrozen())
2392 Thaw();
2393
2394 #ifdef __WXGTK3__
2395 if (m_styleProvider)
2396 g_object_unref(m_styleProvider);
2397 #endif
2398
2399 if (m_widget)
2400 {
2401 // Note that gtk_widget_destroy() does not destroy the widget, it just
2402 // emits the "destroy" signal. The widget is not actually destroyed
2403 // until its reference count drops to zero.
2404 gtk_widget_destroy(m_widget);
2405 // Release our reference, should be the last one
2406 g_object_unref(m_widget);
2407 m_widget = NULL;
2408 }
2409 m_wxwindow = NULL;
2410 }
2411
2412 bool wxWindowGTK::PreCreation( wxWindowGTK *parent, const wxPoint &pos, const wxSize &size )
2413 {
2414 if ( GTKNeedsParent() )
2415 {
2416 wxCHECK_MSG( parent, false, wxT("Must have non-NULL parent") );
2417 }
2418
2419 // Use either the given size, or the default if -1 is given.
2420 // See wxWindowBase for these functions.
2421 m_width = WidthDefault(size.x) ;
2422 m_height = HeightDefault(size.y);
2423
2424 if (pos != wxDefaultPosition)
2425 {
2426 m_x = pos.x;
2427 m_y = pos.y;
2428 }
2429
2430 return true;
2431 }
2432
2433 void wxWindowGTK::PostCreation()
2434 {
2435 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
2436
2437 #if wxGTK_HAS_COMPOSITING_SUPPORT
2438 // Set RGBA visual as soon as possible to minimize the possibility that
2439 // somebody uses the wrong one.
2440 if ( m_backgroundStyle == wxBG_STYLE_TRANSPARENT &&
2441 IsTransparentBackgroundSupported() )
2442 {
2443 GdkScreen *screen = gtk_widget_get_screen (m_widget);
2444 #ifdef __WXGTK3__
2445 gtk_widget_set_visual(m_widget, gdk_screen_get_rgba_visual(screen));
2446 #else
2447 GdkColormap *rgba_colormap = gdk_screen_get_rgba_colormap (screen);
2448
2449 if (rgba_colormap)
2450 gtk_widget_set_colormap(m_widget, rgba_colormap);
2451 #endif
2452 }
2453 #endif // wxGTK_HAS_COMPOSITING_SUPPORT
2454
2455 if (m_wxwindow)
2456 {
2457 if (!m_noExpose)
2458 {
2459 // these get reported to wxWidgets -> wxPaintEvent
2460 #ifdef __WXGTK3__
2461 g_signal_connect(m_wxwindow, "draw", G_CALLBACK(draw), this);
2462 #else
2463 g_signal_connect(m_wxwindow, "expose_event", G_CALLBACK(expose_event), this);
2464 #endif
2465
2466 if (GetLayoutDirection() == wxLayout_LeftToRight)
2467 gtk_widget_set_redraw_on_allocate(m_wxwindow, HasFlag(wxFULL_REPAINT_ON_RESIZE));
2468 }
2469
2470 // Create input method handler
2471 m_imData = new wxGtkIMData;
2472
2473 // Cannot handle drawing preedited text yet
2474 gtk_im_context_set_use_preedit( m_imData->context, FALSE );
2475
2476 g_signal_connect (m_imData->context, "commit",
2477 G_CALLBACK (gtk_wxwindow_commit_cb), this);
2478 }
2479
2480 // focus handling
2481
2482 if (!GTK_IS_WINDOW(m_widget))
2483 {
2484 if (m_focusWidget == NULL)
2485 m_focusWidget = m_widget;
2486
2487 if (m_wxwindow)
2488 {
2489 g_signal_connect (m_focusWidget, "focus_in_event",
2490 G_CALLBACK (gtk_window_focus_in_callback), this);
2491 g_signal_connect (m_focusWidget, "focus_out_event",
2492 G_CALLBACK (gtk_window_focus_out_callback), this);
2493 }
2494 else
2495 {
2496 g_signal_connect_after (m_focusWidget, "focus_in_event",
2497 G_CALLBACK (gtk_window_focus_in_callback), this);
2498 g_signal_connect_after (m_focusWidget, "focus_out_event",
2499 G_CALLBACK (gtk_window_focus_out_callback), this);
2500 }
2501 }
2502
2503 if ( !AcceptsFocusFromKeyboard() )
2504 {
2505 SetCanFocus(false);
2506
2507 g_signal_connect(m_widget, "focus",
2508 G_CALLBACK(wx_window_focus_callback), this);
2509 }
2510
2511 // connect to the various key and mouse handlers
2512
2513 GtkWidget *connect_widget = GetConnectWidget();
2514
2515 ConnectWidget( connect_widget );
2516
2517 // We cannot set colours, fonts and cursors before the widget has been
2518 // realized, so we do this directly after realization -- unless the widget
2519 // was in fact realized already.
2520 if ( gtk_widget_get_realized(connect_widget) )
2521 {
2522 GTKHandleRealized();
2523 }
2524 else
2525 {
2526 g_signal_connect (connect_widget, "realize",
2527 G_CALLBACK (gtk_window_realized_callback), this);
2528 }
2529 g_signal_connect(connect_widget, "unrealize", G_CALLBACK(unrealize), this);
2530
2531 if (!IsTopLevel())
2532 {
2533 g_signal_connect(m_wxwindow ? m_wxwindow : m_widget, "size_allocate",
2534 G_CALLBACK(size_allocate), this);
2535 }
2536
2537 #if GTK_CHECK_VERSION(2, 8, 0)
2538 #ifndef __WXGTK3__
2539 if ( gtk_check_version(2,8,0) == NULL )
2540 #endif
2541 {
2542 // Make sure we can notify the app when mouse capture is lost
2543 if ( m_wxwindow )
2544 {
2545 g_signal_connect (m_wxwindow, "grab_broken_event",
2546 G_CALLBACK (gtk_window_grab_broken), this);
2547 }
2548
2549 if ( connect_widget != m_wxwindow )
2550 {
2551 g_signal_connect (connect_widget, "grab_broken_event",
2552 G_CALLBACK (gtk_window_grab_broken), this);
2553 }
2554 }
2555 #endif // GTK+ >= 2.8
2556
2557 if (!WX_IS_PIZZA(gtk_widget_get_parent(m_widget)) && !GTK_IS_WINDOW(m_widget))
2558 gtk_widget_set_size_request(m_widget, m_width, m_height);
2559
2560 InheritAttributes();
2561
2562 SetLayoutDirection(wxLayout_Default);
2563
2564 // unless the window was created initially hidden (i.e. Hide() had been
2565 // called before Create()), we should show it at GTK+ level as well
2566 if ( IsShown() )
2567 gtk_widget_show( m_widget );
2568 }
2569
2570 unsigned long
2571 wxWindowGTK::GTKConnectWidget(const char *signal, wxGTKCallback callback)
2572 {
2573 return g_signal_connect(m_widget, signal, callback, this);
2574 }
2575
2576 void wxWindowGTK::ConnectWidget( GtkWidget *widget )
2577 {
2578 g_signal_connect (widget, "key_press_event",
2579 G_CALLBACK (gtk_window_key_press_callback), this);
2580 g_signal_connect (widget, "key_release_event",
2581 G_CALLBACK (gtk_window_key_release_callback), this);
2582 g_signal_connect (widget, "button_press_event",
2583 G_CALLBACK (gtk_window_button_press_callback), this);
2584 g_signal_connect (widget, "button_release_event",
2585 G_CALLBACK (gtk_window_button_release_callback), this);
2586 g_signal_connect (widget, "motion_notify_event",
2587 G_CALLBACK (gtk_window_motion_notify_callback), this);
2588
2589 g_signal_connect (widget, "scroll_event",
2590 G_CALLBACK (window_scroll_event), this);
2591 if (m_scrollBar[ScrollDir_Horz])
2592 g_signal_connect (m_scrollBar[ScrollDir_Horz], "scroll_event",
2593 G_CALLBACK (window_scroll_event_hscrollbar), this);
2594 if (m_scrollBar[ScrollDir_Vert])
2595 g_signal_connect (m_scrollBar[ScrollDir_Vert], "scroll_event",
2596 G_CALLBACK (window_scroll_event), this);
2597
2598 g_signal_connect (widget, "popup_menu",
2599 G_CALLBACK (wxgtk_window_popup_menu_callback), this);
2600 g_signal_connect (widget, "enter_notify_event",
2601 G_CALLBACK (gtk_window_enter_callback), this);
2602 g_signal_connect (widget, "leave_notify_event",
2603 G_CALLBACK (gtk_window_leave_callback), this);
2604 }
2605
2606 static GSList* gs_queueResizeList;
2607
2608 extern "C" {
2609 static gboolean queue_resize(void*)
2610 {
2611 gdk_threads_enter();
2612 for (GSList* p = gs_queueResizeList; p; p = p->next)
2613 {
2614 if (p->data)
2615 {
2616 gtk_widget_queue_resize(GTK_WIDGET(p->data));
2617 g_object_remove_weak_pointer(G_OBJECT(p->data), &p->data);
2618 }
2619 }
2620 g_slist_free(gs_queueResizeList);
2621 gs_queueResizeList = NULL;
2622 gdk_threads_leave();
2623 return false;
2624 }
2625 }
2626
2627 void wxWindowGTK::DoMoveWindow(int x, int y, int width, int height)
2628 {
2629 gtk_widget_set_size_request(m_widget, width, height);
2630 GtkWidget* parent = gtk_widget_get_parent(m_widget);
2631 if (WX_IS_PIZZA(parent))
2632 WX_PIZZA(parent)->move(m_widget, x, y, width, height);
2633
2634 // With GTK3, gtk_widget_queue_resize() is ignored while a size-allocate
2635 // is in progress. This situation is common in wxWidgets, since
2636 // size-allocate can generate wxSizeEvent and size event handlers often
2637 // call SetSize(), directly or indirectly. Work around this by deferring
2638 // the queue-resize until after size-allocate processing is finished.
2639 if (g_slist_find(gs_queueResizeList, m_widget) == NULL)
2640 {
2641 if (gs_queueResizeList == NULL)
2642 g_idle_add_full(GTK_PRIORITY_RESIZE, queue_resize, NULL, NULL);
2643 gs_queueResizeList = g_slist_prepend(gs_queueResizeList, m_widget);
2644 g_object_add_weak_pointer(G_OBJECT(m_widget), &gs_queueResizeList->data);
2645 }
2646 }
2647
2648 void wxWindowGTK::ConstrainSize()
2649 {
2650 #ifdef __WXGPE__
2651 // GPE's window manager doesn't like size hints at all, esp. when the user
2652 // has to use the virtual keyboard, so don't constrain size there
2653 if (!IsTopLevel())
2654 #endif
2655 {
2656 const wxSize minSize = GetMinSize();
2657 const wxSize maxSize = GetMaxSize();
2658 if (minSize.x > 0 && m_width < minSize.x) m_width = minSize.x;
2659 if (minSize.y > 0 && m_height < minSize.y) m_height = minSize.y;
2660 if (maxSize.x > 0 && m_width > maxSize.x) m_width = maxSize.x;
2661 if (maxSize.y > 0 && m_height > maxSize.y) m_height = maxSize.y;
2662 }
2663 }
2664
2665 void wxWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags )
2666 {
2667 wxCHECK_RET(m_widget, "invalid window");
2668
2669 int scrollX = 0, scrollY = 0;
2670 GtkWidget* parent = gtk_widget_get_parent(m_widget);
2671 if (WX_IS_PIZZA(parent))
2672 {
2673 wxPizza* pizza = WX_PIZZA(parent);
2674 scrollX = pizza->m_scroll_x;
2675 scrollY = pizza->m_scroll_y;
2676 }
2677 if (x != -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2678 x += scrollX;
2679 else
2680 x = m_x;
2681 if (y != -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2682 y += scrollY;
2683 else
2684 y = m_y;
2685
2686 // calculate the best size if we should auto size the window
2687 if ( ((sizeFlags & wxSIZE_AUTO_WIDTH) && width == -1) ||
2688 ((sizeFlags & wxSIZE_AUTO_HEIGHT) && height == -1) )
2689 {
2690 const wxSize sizeBest = GetBestSize();
2691 if ( (sizeFlags & wxSIZE_AUTO_WIDTH) && width == -1 )
2692 width = sizeBest.x;
2693 if ( (sizeFlags & wxSIZE_AUTO_HEIGHT) && height == -1 )
2694 height = sizeBest.y;
2695 }
2696
2697 if (width == -1)
2698 width = m_width;
2699 if (height == -1)
2700 height = m_height;
2701
2702 const bool sizeChange = m_width != width || m_height != height;
2703 if (sizeChange || m_x != x || m_y != y)
2704 {
2705 m_x = x;
2706 m_y = y;
2707 m_width = width;
2708 m_height = height;
2709
2710 /* the default button has a border around it */
2711 if (gtk_widget_get_can_default(m_widget))
2712 {
2713 GtkBorder *default_border = NULL;
2714 gtk_widget_style_get( m_widget, "default_border", &default_border, NULL );
2715 if (default_border)
2716 {
2717 x -= default_border->left;
2718 y -= default_border->top;
2719 width += default_border->left + default_border->right;
2720 height += default_border->top + default_border->bottom;
2721 gtk_border_free( default_border );
2722 }
2723 }
2724
2725 DoMoveWindow(x, y, width, height);
2726 }
2727
2728 if ((sizeChange && !m_nativeSizeEvent) || (sizeFlags & wxSIZE_FORCE_EVENT))
2729 {
2730 // update these variables to keep size_allocate handler
2731 // from sending another size event for this change
2732 GetClientSize( &m_oldClientWidth, &m_oldClientHeight );
2733
2734 wxSizeEvent event( wxSize(m_width,m_height), GetId() );
2735 event.SetEventObject( this );
2736 HandleWindowEvent( event );
2737 }
2738 }
2739
2740 bool wxWindowGTK::GTKShowFromOnIdle()
2741 {
2742 if (IsShown() && m_showOnIdle && !gtk_widget_get_visible (m_widget))
2743 {
2744 GtkAllocation alloc;
2745 alloc.x = m_x;
2746 alloc.y = m_y;
2747 alloc.width = m_width;
2748 alloc.height = m_height;
2749 gtk_widget_size_allocate( m_widget, &alloc );
2750 gtk_widget_show( m_widget );
2751 wxShowEvent eventShow(GetId(), true);
2752 eventShow.SetEventObject(this);
2753 HandleWindowEvent(eventShow);
2754 m_showOnIdle = false;
2755 return true;
2756 }
2757
2758 return false;
2759 }
2760
2761 void wxWindowGTK::OnInternalIdle()
2762 {
2763 if ( gs_deferredFocusOut )
2764 GTKHandleDeferredFocusOut();
2765
2766 // Check if we have to show window now
2767 if (GTKShowFromOnIdle()) return;
2768
2769 if ( m_dirtyTabOrder )
2770 {
2771 m_dirtyTabOrder = false;
2772 RealizeTabOrder();
2773 }
2774
2775 wxWindowBase::OnInternalIdle();
2776 }
2777
2778 void wxWindowGTK::DoGetSize( int *width, int *height ) const
2779 {
2780 if (width) (*width) = m_width;
2781 if (height) (*height) = m_height;
2782 }
2783
2784 void wxWindowGTK::DoSetClientSize( int width, int height )
2785 {
2786 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2787
2788 const wxSize size = GetSize();
2789 const wxSize clientSize = GetClientSize();
2790 SetSize(width + (size.x - clientSize.x), height + (size.y - clientSize.y));
2791 }
2792
2793 void wxWindowGTK::DoGetClientSize( int *width, int *height ) const
2794 {
2795 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2796
2797 int w = m_width;
2798 int h = m_height;
2799
2800 if ( m_wxwindow )
2801 {
2802 // if window is scrollable, account for scrollbars
2803 if ( GTK_IS_SCROLLED_WINDOW(m_widget) )
2804 {
2805 GtkPolicyType policy[ScrollDir_Max];
2806 gtk_scrolled_window_get_policy(GTK_SCROLLED_WINDOW(m_widget),
2807 &policy[ScrollDir_Horz],
2808 &policy[ScrollDir_Vert]);
2809 const int scrollbar_spacing =
2810 GTK_SCROLLED_WINDOW_GET_CLASS(m_widget)->scrollbar_spacing;
2811
2812 for ( int i = 0; i < ScrollDir_Max; i++ )
2813 {
2814 // don't account for the scrollbars we don't have
2815 GtkRange * const range = m_scrollBar[i];
2816 if ( !range )
2817 continue;
2818
2819 // nor for the ones we have but don't current show
2820 switch ( policy[i] )
2821 {
2822 case GTK_POLICY_NEVER:
2823 // never shown so doesn't take any place
2824 continue;
2825
2826 case GTK_POLICY_ALWAYS:
2827 // no checks necessary
2828 break;
2829
2830 case GTK_POLICY_AUTOMATIC:
2831 // may be shown or not, check
2832 GtkAdjustment *adj = gtk_range_get_adjustment(range);
2833 if (gtk_adjustment_get_upper(adj) <= gtk_adjustment_get_page_size(adj))
2834 continue;
2835 }
2836
2837 GtkRequisition req;
2838 #ifdef __WXGTK3__
2839 GtkWidget* widget = GTK_WIDGET(range);
2840 if (i == ScrollDir_Horz)
2841 {
2842 if (height)
2843 {
2844 gtk_widget_get_preferred_height(widget, NULL, &req.height);
2845 h -= req.height + scrollbar_spacing;
2846 }
2847 }
2848 else
2849 {
2850 if (width)
2851 {
2852 gtk_widget_get_preferred_width(widget, NULL, &req.width);
2853 w -= req.width + scrollbar_spacing;
2854 }
2855 }
2856 #else // !__WXGTK3__
2857 gtk_widget_size_request(GTK_WIDGET(range), &req);
2858 if (i == ScrollDir_Horz)
2859 h -= req.height + scrollbar_spacing;
2860 else
2861 w -= req.width + scrollbar_spacing;
2862 #endif // !__WXGTK3__
2863 }
2864 }
2865
2866 const wxSize sizeBorders = DoGetBorderSize();
2867 w -= sizeBorders.x;
2868 h -= sizeBorders.y;
2869
2870 if (w < 0)
2871 w = 0;
2872 if (h < 0)
2873 h = 0;
2874 }
2875
2876 if (width) *width = w;
2877 if (height) *height = h;
2878 }
2879
2880 wxSize wxWindowGTK::DoGetBorderSize() const
2881 {
2882 if ( !m_wxwindow )
2883 return wxWindowBase::DoGetBorderSize();
2884
2885 GtkBorder border;
2886 WX_PIZZA(m_wxwindow)->get_border(border);
2887 return wxSize(border.left + border.right, border.top + border.bottom);
2888 }
2889
2890 void wxWindowGTK::DoGetPosition( int *x, int *y ) const
2891 {
2892 int dx = 0;
2893 int dy = 0;
2894 GtkWidget* parent = NULL;
2895 if (m_widget)
2896 parent = gtk_widget_get_parent(m_widget);
2897 if (WX_IS_PIZZA(parent))
2898 {
2899 wxPizza* pizza = WX_PIZZA(parent);
2900 dx = pizza->m_scroll_x;
2901 dy = pizza->m_scroll_y;
2902 }
2903 if (x) (*x) = m_x - dx;
2904 if (y) (*y) = m_y - dy;
2905 }
2906
2907 void wxWindowGTK::DoClientToScreen( int *x, int *y ) const
2908 {
2909 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2910
2911 if (gtk_widget_get_window(m_widget) == NULL) return;
2912
2913 GdkWindow *source = NULL;
2914 if (m_wxwindow)
2915 source = gtk_widget_get_window(m_wxwindow);
2916 else
2917 source = gtk_widget_get_window(m_widget);
2918
2919 int org_x = 0;
2920 int org_y = 0;
2921 gdk_window_get_origin( source, &org_x, &org_y );
2922
2923 if (!m_wxwindow)
2924 {
2925 if (!gtk_widget_get_has_window(m_widget))
2926 {
2927 GtkAllocation a;
2928 gtk_widget_get_allocation(m_widget, &a);
2929 org_x += a.x;
2930 org_y += a.y;
2931 }
2932 }
2933
2934
2935 if (x)
2936 {
2937 if (GetLayoutDirection() == wxLayout_RightToLeft)
2938 *x = (GetClientSize().x - *x) + org_x;
2939 else
2940 *x += org_x;
2941 }
2942
2943 if (y) *y += org_y;
2944 }
2945
2946 void wxWindowGTK::DoScreenToClient( int *x, int *y ) const
2947 {
2948 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2949
2950 if (!gtk_widget_get_realized(m_widget)) return;
2951
2952 GdkWindow *source = NULL;
2953 if (m_wxwindow)
2954 source = gtk_widget_get_window(m_wxwindow);
2955 else
2956 source = gtk_widget_get_window(m_widget);
2957
2958 int org_x = 0;
2959 int org_y = 0;
2960 gdk_window_get_origin( source, &org_x, &org_y );
2961
2962 if (!m_wxwindow)
2963 {
2964 if (!gtk_widget_get_has_window(m_widget))
2965 {
2966 GtkAllocation a;
2967 gtk_widget_get_allocation(m_widget, &a);
2968 org_x += a.x;
2969 org_y += a.y;
2970 }
2971 }
2972
2973 if (x)
2974 {
2975 if (GetLayoutDirection() == wxLayout_RightToLeft)
2976 *x = (GetClientSize().x - *x) - org_x;
2977 else
2978 *x -= org_x;
2979 }
2980 if (y) *y -= org_y;
2981 }
2982
2983 bool wxWindowGTK::Show( bool show )
2984 {
2985 if ( !wxWindowBase::Show(show) )
2986 {
2987 // nothing to do
2988 return false;
2989 }
2990
2991 // notice that we may call Hide() before the window is created and this is
2992 // actually useful to create it hidden initially -- but we can't call
2993 // Show() before it is created
2994 if ( !m_widget )
2995 {
2996 wxASSERT_MSG( !show, "can't show invalid window" );
2997 return true;
2998 }
2999
3000 if ( show )
3001 {
3002 if ( m_showOnIdle )
3003 {
3004 // defer until later
3005 return true;
3006 }
3007
3008 gtk_widget_show(m_widget);
3009 }
3010 else // hide
3011 {
3012 gtk_widget_hide(m_widget);
3013 }
3014
3015 wxShowEvent eventShow(GetId(), show);
3016 eventShow.SetEventObject(this);
3017 HandleWindowEvent(eventShow);
3018
3019 return true;
3020 }
3021
3022 void wxWindowGTK::DoEnable( bool enable )
3023 {
3024 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3025
3026 gtk_widget_set_sensitive( m_widget, enable );
3027 if (m_wxwindow && (m_wxwindow != m_widget))
3028 gtk_widget_set_sensitive( m_wxwindow, enable );
3029 }
3030
3031 int wxWindowGTK::GetCharHeight() const
3032 {
3033 wxCHECK_MSG( (m_widget != NULL), 12, wxT("invalid window") );
3034
3035 wxFont font = GetFont();
3036 wxCHECK_MSG( font.IsOk(), 12, wxT("invalid font") );
3037
3038 PangoContext* context = gtk_widget_get_pango_context(m_widget);
3039
3040 if (!context)
3041 return 0;
3042
3043 PangoFontDescription *desc = font.GetNativeFontInfo()->description;
3044 PangoLayout *layout = pango_layout_new(context);
3045 pango_layout_set_font_description(layout, desc);
3046 pango_layout_set_text(layout, "H", 1);
3047 PangoLayoutLine *line = (PangoLayoutLine *)pango_layout_get_lines(layout)->data;
3048
3049 PangoRectangle rect;
3050 pango_layout_line_get_extents(line, NULL, &rect);
3051
3052 g_object_unref (layout);
3053
3054 return (int) PANGO_PIXELS(rect.height);
3055 }
3056
3057 int wxWindowGTK::GetCharWidth() const
3058 {
3059 wxCHECK_MSG( (m_widget != NULL), 8, wxT("invalid window") );
3060
3061 wxFont font = GetFont();
3062 wxCHECK_MSG( font.IsOk(), 8, wxT("invalid font") );
3063
3064 PangoContext* context = gtk_widget_get_pango_context(m_widget);
3065
3066 if (!context)
3067 return 0;
3068
3069 PangoFontDescription *desc = font.GetNativeFontInfo()->description;
3070 PangoLayout *layout = pango_layout_new(context);
3071 pango_layout_set_font_description(layout, desc);
3072 pango_layout_set_text(layout, "g", 1);
3073 PangoLayoutLine *line = (PangoLayoutLine *)pango_layout_get_lines(layout)->data;
3074
3075 PangoRectangle rect;
3076 pango_layout_line_get_extents(line, NULL, &rect);
3077
3078 g_object_unref (layout);
3079
3080 return (int) PANGO_PIXELS(rect.width);
3081 }
3082
3083 void wxWindowGTK::DoGetTextExtent( const wxString& string,
3084 int *x,
3085 int *y,
3086 int *descent,
3087 int *externalLeading,
3088 const wxFont *theFont ) const
3089 {
3090 // ensure we work with a valid font
3091 wxFont fontToUse;
3092 if ( !theFont || !theFont->IsOk() )
3093 fontToUse = GetFont();
3094 else
3095 fontToUse = *theFont;
3096
3097 wxCHECK_RET( fontToUse.IsOk(), wxT("invalid font") );
3098
3099 const wxWindow* win = static_cast<const wxWindow*>(this);
3100 wxTextMeasure txm(win, &fontToUse);
3101 txm.GetTextExtent(string, x, y, descent, externalLeading);
3102 }
3103
3104 void wxWindowGTK::GTKDisableFocusOutEvent()
3105 {
3106 g_signal_handlers_block_by_func( m_focusWidget,
3107 (gpointer) gtk_window_focus_out_callback, this);
3108 }
3109
3110 void wxWindowGTK::GTKEnableFocusOutEvent()
3111 {
3112 g_signal_handlers_unblock_by_func( m_focusWidget,
3113 (gpointer) gtk_window_focus_out_callback, this);
3114 }
3115
3116 bool wxWindowGTK::GTKHandleFocusIn()
3117 {
3118 // Disable default focus handling for custom windows since the default GTK+
3119 // handler issues a repaint
3120 const bool retval = m_wxwindow ? true : false;
3121
3122
3123 // NB: if there's still unprocessed deferred focus-out event (see
3124 // GTKHandleFocusOut() for explanation), we need to process it first so
3125 // that the order of focus events -- focus-out first, then focus-in
3126 // elsewhere -- is preserved
3127 if ( gs_deferredFocusOut )
3128 {
3129 if ( GTKNeedsToFilterSameWindowFocus() &&
3130 gs_deferredFocusOut == this )
3131 {
3132 // GTK+ focus changed from this wxWindow back to itself, so don't
3133 // emit any events at all
3134 wxLogTrace(TRACE_FOCUS,
3135 "filtered out spurious focus change within %s(%p, %s)",
3136 GetClassInfo()->GetClassName(), this, GetLabel());
3137 gs_deferredFocusOut = NULL;
3138 return retval;
3139 }
3140
3141 // otherwise we need to send focus-out first
3142 wxASSERT_MSG ( gs_deferredFocusOut != this,
3143 "GTKHandleFocusIn(GTKFocus_Normal) called even though focus changed back to itself - derived class should handle this" );
3144 GTKHandleDeferredFocusOut();
3145 }
3146
3147
3148 wxLogTrace(TRACE_FOCUS,
3149 "handling focus_in event for %s(%p, %s)",
3150 GetClassInfo()->GetClassName(), this, GetLabel());
3151
3152 if (m_imData)
3153 gtk_im_context_focus_in(m_imData->context);
3154
3155 gs_currentFocus = this;
3156 gs_pendingFocus = NULL;
3157
3158 #if wxUSE_CARET
3159 // caret needs to be informed about focus change
3160 wxCaret *caret = GetCaret();
3161 if ( caret )
3162 {
3163 caret->OnSetFocus();
3164 }
3165 #endif // wxUSE_CARET
3166
3167 // Notify the parent keeping track of focus for the kbd navigation
3168 // purposes that we got it.
3169 wxChildFocusEvent eventChildFocus(static_cast<wxWindow*>(this));
3170 GTKProcessEvent(eventChildFocus);
3171
3172 wxFocusEvent eventFocus(wxEVT_SET_FOCUS, GetId());
3173 eventFocus.SetEventObject(this);
3174 GTKProcessEvent(eventFocus);
3175
3176 return retval;
3177 }
3178
3179 bool wxWindowGTK::GTKHandleFocusOut()
3180 {
3181 // Disable default focus handling for custom windows since the default GTK+
3182 // handler issues a repaint
3183 const bool retval = m_wxwindow ? true : false;
3184
3185
3186 // NB: If a control is composed of several GtkWidgets and when focus
3187 // changes from one of them to another within the same wxWindow, we get
3188 // a focus-out event followed by focus-in for another GtkWidget owned
3189 // by the same wx control. We don't want to generate two spurious
3190 // wxEVT_SET_FOCUS events in this case, so we defer sending wx events
3191 // from GTKHandleFocusOut() until we know for sure it's not coming back
3192 // (i.e. in GTKHandleFocusIn() or at idle time).
3193 if ( GTKNeedsToFilterSameWindowFocus() )
3194 {
3195 wxASSERT_MSG( gs_deferredFocusOut == NULL,
3196 "deferred focus out event already pending" );
3197 wxLogTrace(TRACE_FOCUS,
3198 "deferring focus_out event for %s(%p, %s)",
3199 GetClassInfo()->GetClassName(), this, GetLabel());
3200 gs_deferredFocusOut = this;
3201 return retval;
3202 }
3203
3204 GTKHandleFocusOutNoDeferring();
3205
3206 return retval;
3207 }
3208
3209 void wxWindowGTK::GTKHandleFocusOutNoDeferring()
3210 {
3211 wxLogTrace(TRACE_FOCUS,
3212 "handling focus_out event for %s(%p, %s)",
3213 GetClassInfo()->GetClassName(), this, GetLabel());
3214
3215 if (m_imData)
3216 gtk_im_context_focus_out(m_imData->context);
3217
3218 if ( gs_currentFocus != this )
3219 {
3220 // Something is terribly wrong, gs_currentFocus is out of sync with the
3221 // real focus. We will reset it to NULL anyway, because after this
3222 // focus-out event is handled, one of the following with happen:
3223 //
3224 // * either focus will go out of the app altogether, in which case
3225 // gs_currentFocus _should_ be NULL
3226 //
3227 // * or it goes to another control, in which case focus-in event will
3228 // follow immediately and it will set gs_currentFocus to the right
3229 // value
3230 wxLogDebug("window %s(%p, %s) lost focus even though it didn't have it",
3231 GetClassInfo()->GetClassName(), this, GetLabel());
3232 }
3233 gs_currentFocus = NULL;
3234
3235 #if wxUSE_CARET
3236 // caret needs to be informed about focus change
3237 wxCaret *caret = GetCaret();
3238 if ( caret )
3239 {
3240 caret->OnKillFocus();
3241 }
3242 #endif // wxUSE_CARET
3243
3244 wxFocusEvent event( wxEVT_KILL_FOCUS, GetId() );
3245 event.SetEventObject( this );
3246 event.SetWindow( FindFocus() );
3247 GTKProcessEvent( event );
3248 }
3249
3250 /*static*/
3251 void wxWindowGTK::GTKHandleDeferredFocusOut()
3252 {
3253 // NB: See GTKHandleFocusOut() for explanation. This function is called
3254 // from either GTKHandleFocusIn() or OnInternalIdle() to process
3255 // deferred event.
3256 if ( gs_deferredFocusOut )
3257 {
3258 wxWindowGTK *win = gs_deferredFocusOut;
3259 gs_deferredFocusOut = NULL;
3260
3261 wxLogTrace(TRACE_FOCUS,
3262 "processing deferred focus_out event for %s(%p, %s)",
3263 win->GetClassInfo()->GetClassName(), win, win->GetLabel());
3264
3265 win->GTKHandleFocusOutNoDeferring();
3266 }
3267 }
3268
3269 void wxWindowGTK::SetFocus()
3270 {
3271 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
3272
3273 // Setting "physical" focus is not immediate in GTK+ and while
3274 // gtk_widget_is_focus ("determines if the widget is the focus widget
3275 // within its toplevel", i.e. returns true for one widget per TLW, not
3276 // globally) returns true immediately after grabbing focus,
3277 // GTK_WIDGET_HAS_FOCUS (which returns true only for the one widget that
3278 // has focus at the moment) takes effect only after the window is shown
3279 // (if it was hidden at the moment of the call) or at the next event loop
3280 // iteration.
3281 //
3282 // Because we want to FindFocus() call immediately following
3283 // foo->SetFocus() to return foo, we have to keep track of "pending" focus
3284 // ourselves.
3285 gs_pendingFocus = this;
3286
3287 GtkWidget *widget = m_wxwindow ? m_wxwindow : m_focusWidget;
3288
3289 if ( GTK_IS_CONTAINER(widget) &&
3290 !gtk_widget_get_can_focus(widget) )
3291 {
3292 wxLogTrace(TRACE_FOCUS,
3293 wxT("Setting focus to a child of %s(%p, %s)"),
3294 GetClassInfo()->GetClassName(), this, GetLabel().c_str());
3295 gtk_widget_child_focus(widget, GTK_DIR_TAB_FORWARD);
3296 }
3297 else
3298 {
3299 wxLogTrace(TRACE_FOCUS,
3300 wxT("Setting focus to %s(%p, %s)"),
3301 GetClassInfo()->GetClassName(), this, GetLabel().c_str());
3302 gtk_widget_grab_focus(widget);
3303 }
3304 }
3305
3306 void wxWindowGTK::SetCanFocus(bool canFocus)
3307 {
3308 gtk_widget_set_can_focus(m_widget, canFocus);
3309
3310 if ( m_wxwindow && (m_widget != m_wxwindow) )
3311 {
3312 gtk_widget_set_can_focus(m_wxwindow, canFocus);
3313 }
3314 }
3315
3316 bool wxWindowGTK::Reparent( wxWindowBase *newParentBase )
3317 {
3318 wxCHECK_MSG( (m_widget != NULL), false, wxT("invalid window") );
3319
3320 wxWindowGTK * const newParent = (wxWindowGTK *)newParentBase;
3321
3322 wxASSERT( GTK_IS_WIDGET(m_widget) );
3323
3324 if ( !wxWindowBase::Reparent(newParent) )
3325 return false;
3326
3327 wxASSERT( GTK_IS_WIDGET(m_widget) );
3328
3329 // Notice that old m_parent pointer might be non-NULL here but the widget
3330 // still not have any parent at GTK level if it's a notebook page that had
3331 // been removed from the notebook so test this at GTK level and not wx one.
3332 if ( GtkWidget *parentGTK = gtk_widget_get_parent(m_widget) )
3333 gtk_container_remove(GTK_CONTAINER(parentGTK), m_widget);
3334
3335 wxASSERT( GTK_IS_WIDGET(m_widget) );
3336
3337 if (newParent)
3338 {
3339 if (gtk_widget_get_visible (newParent->m_widget))
3340 {
3341 m_showOnIdle = true;
3342 gtk_widget_hide( m_widget );
3343 }
3344 /* insert GTK representation */
3345 newParent->AddChildGTK(this);
3346 }
3347
3348 SetLayoutDirection(wxLayout_Default);
3349
3350 return true;
3351 }
3352
3353 void wxWindowGTK::DoAddChild(wxWindowGTK *child)
3354 {
3355 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
3356 wxASSERT_MSG( (child != NULL), wxT("invalid child window") );
3357
3358 /* add to list */
3359 AddChild( child );
3360
3361 /* insert GTK representation */
3362 AddChildGTK(child);
3363 }
3364
3365 void wxWindowGTK::AddChild(wxWindowBase *child)
3366 {
3367 wxWindowBase::AddChild(child);
3368 m_dirtyTabOrder = true;
3369 wxTheApp->WakeUpIdle();
3370 }
3371
3372 void wxWindowGTK::RemoveChild(wxWindowBase *child)
3373 {
3374 wxWindowBase::RemoveChild(child);
3375 m_dirtyTabOrder = true;
3376 wxTheApp->WakeUpIdle();
3377 }
3378
3379 /* static */
3380 wxLayoutDirection wxWindowGTK::GTKGetLayout(GtkWidget *widget)
3381 {
3382 return gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL
3383 ? wxLayout_RightToLeft
3384 : wxLayout_LeftToRight;
3385 }
3386
3387 /* static */
3388 void wxWindowGTK::GTKSetLayout(GtkWidget *widget, wxLayoutDirection dir)
3389 {
3390 wxASSERT_MSG( dir != wxLayout_Default, wxT("invalid layout direction") );
3391
3392 gtk_widget_set_direction(widget,
3393 dir == wxLayout_RightToLeft ? GTK_TEXT_DIR_RTL
3394 : GTK_TEXT_DIR_LTR);
3395 }
3396
3397 wxLayoutDirection wxWindowGTK::GetLayoutDirection() const
3398 {
3399 return GTKGetLayout(m_widget);
3400 }
3401
3402 void wxWindowGTK::SetLayoutDirection(wxLayoutDirection dir)
3403 {
3404 if ( dir == wxLayout_Default )
3405 {
3406 const wxWindow *const parent = GetParent();
3407 if ( parent )
3408 {
3409 // inherit layout from parent.
3410 dir = parent->GetLayoutDirection();
3411 }
3412 else // no parent, use global default layout
3413 {
3414 dir = wxTheApp->GetLayoutDirection();
3415 }
3416 }
3417
3418 if ( dir == wxLayout_Default )
3419 return;
3420
3421 GTKSetLayout(m_widget, dir);
3422
3423 if (m_wxwindow && (m_wxwindow != m_widget))
3424 GTKSetLayout(m_wxwindow, dir);
3425 }
3426
3427 wxCoord
3428 wxWindowGTK::AdjustForLayoutDirection(wxCoord x,
3429 wxCoord WXUNUSED(width),
3430 wxCoord WXUNUSED(widthTotal)) const
3431 {
3432 // We now mirror the coordinates of RTL windows in wxPizza
3433 return x;
3434 }
3435
3436 void wxWindowGTK::DoMoveInTabOrder(wxWindow *win, WindowOrder move)
3437 {
3438 wxWindowBase::DoMoveInTabOrder(win, move);
3439 m_dirtyTabOrder = true;
3440 wxTheApp->WakeUpIdle();
3441 }
3442
3443 bool wxWindowGTK::DoNavigateIn(int flags)
3444 {
3445 if ( flags & wxNavigationKeyEvent::WinChange )
3446 {
3447 wxFAIL_MSG( wxT("not implemented") );
3448
3449 return false;
3450 }
3451 else // navigate inside the container
3452 {
3453 wxWindow *parent = wxGetTopLevelParent((wxWindow *)this);
3454 wxCHECK_MSG( parent, false, wxT("every window must have a TLW parent") );
3455
3456 GtkDirectionType dir;
3457 dir = flags & wxNavigationKeyEvent::IsForward ? GTK_DIR_TAB_FORWARD
3458 : GTK_DIR_TAB_BACKWARD;
3459
3460 gboolean rc;
3461 g_signal_emit_by_name(parent->m_widget, "focus", dir, &rc);
3462
3463 return rc != 0;
3464 }
3465 }
3466
3467 bool wxWindowGTK::GTKWidgetNeedsMnemonic() const
3468 {
3469 // none needed by default
3470 return false;
3471 }
3472
3473 void wxWindowGTK::GTKWidgetDoSetMnemonic(GtkWidget* WXUNUSED(w))
3474 {
3475 // nothing to do by default since none is needed
3476 }
3477
3478 void wxWindowGTK::RealizeTabOrder()
3479 {
3480 if (m_wxwindow)
3481 {
3482 if ( !m_children.empty() )
3483 {
3484 // we don't only construct the correct focus chain but also use
3485 // this opportunity to update the mnemonic widgets for the widgets
3486 // that need them
3487
3488 GList *chain = NULL;
3489 wxWindowGTK* mnemonicWindow = NULL;
3490
3491 for ( wxWindowList::const_iterator i = m_children.begin();
3492 i != m_children.end();
3493 ++i )
3494 {
3495 wxWindowGTK *win = *i;
3496
3497 bool focusableFromKeyboard = win->AcceptsFocusFromKeyboard();
3498
3499 if ( mnemonicWindow )
3500 {
3501 if ( focusableFromKeyboard )
3502 {
3503 // wxComboBox et al. needs to focus on on a different
3504 // widget than m_widget, so if the main widget isn't
3505 // focusable try the connect widget
3506 GtkWidget* w = win->m_widget;
3507 if ( !gtk_widget_get_can_focus(w) )
3508 {
3509 w = win->GetConnectWidget();
3510 if ( !gtk_widget_get_can_focus(w) )
3511 w = NULL;
3512 }
3513
3514 if ( w )
3515 {
3516 mnemonicWindow->GTKWidgetDoSetMnemonic(w);
3517 mnemonicWindow = NULL;
3518 }
3519 }
3520 }
3521 else if ( win->GTKWidgetNeedsMnemonic() )
3522 {
3523 mnemonicWindow = win;
3524 }
3525
3526 if ( focusableFromKeyboard )
3527 chain = g_list_prepend(chain, win->m_widget);
3528 }
3529
3530 chain = g_list_reverse(chain);
3531
3532 gtk_container_set_focus_chain(GTK_CONTAINER(m_wxwindow), chain);
3533 g_list_free(chain);
3534 }
3535 else // no children
3536 {
3537 gtk_container_unset_focus_chain(GTK_CONTAINER(m_wxwindow));
3538 }
3539 }
3540 }
3541
3542 void wxWindowGTK::Raise()
3543 {
3544 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3545
3546 if (m_wxwindow && gtk_widget_get_window(m_wxwindow))
3547 {
3548 gdk_window_raise(gtk_widget_get_window(m_wxwindow));
3549 }
3550 else if (gtk_widget_get_window(m_widget))
3551 {
3552 gdk_window_raise(gtk_widget_get_window(m_widget));
3553 }
3554 }
3555
3556 void wxWindowGTK::Lower()
3557 {
3558 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3559
3560 if (m_wxwindow && gtk_widget_get_window(m_wxwindow))
3561 {
3562 gdk_window_lower(gtk_widget_get_window(m_wxwindow));
3563 }
3564 else if (gtk_widget_get_window(m_widget))
3565 {
3566 gdk_window_lower(gtk_widget_get_window(m_widget));
3567 }
3568 }
3569
3570 bool wxWindowGTK::SetCursor( const wxCursor &cursor )
3571 {
3572 if ( !wxWindowBase::SetCursor(cursor.IsOk() ? cursor : *wxSTANDARD_CURSOR) )
3573 return false;
3574
3575 GTKUpdateCursor();
3576
3577 return true;
3578 }
3579
3580 void wxWindowGTK::GTKUpdateCursor(bool update_self /*=true*/, bool recurse /*=true*/)
3581 {
3582 if (update_self)
3583 {
3584 wxCursor cursor(g_globalCursor.IsOk() ? g_globalCursor : GetCursor());
3585 if ( cursor.IsOk() )
3586 {
3587 wxArrayGdkWindows windowsThis;
3588 GdkWindow* window = GTKGetWindow(windowsThis);
3589 if (window)
3590 gdk_window_set_cursor( window, cursor.GetCursor() );
3591 else
3592 {
3593 const size_t count = windowsThis.size();
3594 for ( size_t n = 0; n < count; n++ )
3595 {
3596 GdkWindow *win = windowsThis[n];
3597 // It can be zero if the window has not been realized yet.
3598 if ( win )
3599 {
3600 gdk_window_set_cursor(win, cursor.GetCursor());
3601 }
3602 }
3603 }
3604 }
3605 }
3606
3607 if (recurse)
3608 {
3609 for (wxWindowList::iterator it = GetChildren().begin(); it != GetChildren().end(); ++it)
3610 {
3611 (*it)->GTKUpdateCursor( true );
3612 }
3613 }
3614 }
3615
3616 void wxWindowGTK::WarpPointer( int x, int y )
3617 {
3618 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3619
3620 ClientToScreen(&x, &y);
3621 GdkDisplay* display = gtk_widget_get_display(m_widget);
3622 GdkScreen* screen = gtk_widget_get_screen(m_widget);
3623 #ifdef __WXGTK3__
3624 GdkDeviceManager* manager = gdk_display_get_device_manager(display);
3625 gdk_device_warp(gdk_device_manager_get_client_pointer(manager), screen, x, y);
3626 #else
3627 #ifdef GDK_WINDOWING_X11
3628 XWarpPointer(GDK_DISPLAY_XDISPLAY(display),
3629 None,
3630 GDK_WINDOW_XID(gdk_screen_get_root_window(screen)),
3631 0, 0, 0, 0, x, y);
3632 #endif
3633 #endif
3634 }
3635
3636 wxWindowGTK::ScrollDir wxWindowGTK::ScrollDirFromRange(GtkRange *range) const
3637 {
3638 // find the scrollbar which generated the event
3639 for ( int dir = 0; dir < ScrollDir_Max; dir++ )
3640 {
3641 if ( range == m_scrollBar[dir] )
3642 return (ScrollDir)dir;
3643 }
3644
3645 wxFAIL_MSG( wxT("event from unknown scrollbar received") );
3646
3647 return ScrollDir_Max;
3648 }
3649
3650 bool wxWindowGTK::DoScrollByUnits(ScrollDir dir, ScrollUnit unit, int units)
3651 {
3652 bool changed = false;
3653 GtkRange* range = m_scrollBar[dir];
3654 if ( range && units )
3655 {
3656 GtkAdjustment* adj = gtk_range_get_adjustment(range);
3657 double inc = unit == ScrollUnit_Line ? gtk_adjustment_get_step_increment(adj)
3658 : gtk_adjustment_get_page_increment(adj);
3659
3660 const int posOld = wxRound(gtk_adjustment_get_value(adj));
3661 gtk_range_set_value(range, posOld + units*inc);
3662
3663 changed = wxRound(gtk_adjustment_get_value(adj)) != posOld;
3664 }
3665
3666 return changed;
3667 }
3668
3669 bool wxWindowGTK::ScrollLines(int lines)
3670 {
3671 return DoScrollByUnits(ScrollDir_Vert, ScrollUnit_Line, lines);
3672 }
3673
3674 bool wxWindowGTK::ScrollPages(int pages)
3675 {
3676 return DoScrollByUnits(ScrollDir_Vert, ScrollUnit_Page, pages);
3677 }
3678
3679 void wxWindowGTK::Refresh(bool WXUNUSED(eraseBackground),
3680 const wxRect *rect)
3681 {
3682 if (m_wxwindow)
3683 {
3684 if (gtk_widget_get_mapped(m_wxwindow))
3685 {
3686 GdkWindow* window = gtk_widget_get_window(m_wxwindow);
3687 if (rect)
3688 {
3689 GdkRectangle r = { rect->x, rect->y, rect->width, rect->height };
3690 if (GetLayoutDirection() == wxLayout_RightToLeft)
3691 r.x = gdk_window_get_width(window) - r.x - rect->width;
3692 gdk_window_invalidate_rect(window, &r, true);
3693 }
3694 else
3695 gdk_window_invalidate_rect(window, NULL, true);
3696 }
3697 }
3698 else if (m_widget)
3699 {
3700 if (gtk_widget_get_mapped(m_widget))
3701 {
3702 if (rect)
3703 gtk_widget_queue_draw_area(m_widget, rect->x, rect->y, rect->width, rect->height);
3704 else
3705 gtk_widget_queue_draw(m_widget);
3706 }
3707 }
3708 }
3709
3710 void wxWindowGTK::Update()
3711 {
3712 if (m_widget && gtk_widget_get_mapped(m_widget))
3713 {
3714 GdkDisplay* display = gtk_widget_get_display(m_widget);
3715 // Flush everything out to the server, and wait for it to finish.
3716 // This ensures nothing will overwrite the drawing we are about to do.
3717 gdk_display_sync(display);
3718
3719 GdkWindow* window = GTKGetDrawingWindow();
3720 if (window == NULL)
3721 window = gtk_widget_get_window(m_widget);
3722 gdk_window_process_updates(window, true);
3723
3724 // Flush again, but no need to wait for it to finish
3725 gdk_display_flush(display);
3726 }
3727 }
3728
3729 bool wxWindowGTK::DoIsExposed( int x, int y ) const
3730 {
3731 return m_updateRegion.Contains(x, y) != wxOutRegion;
3732 }
3733
3734 bool wxWindowGTK::DoIsExposed( int x, int y, int w, int h ) const
3735 {
3736 if (GetLayoutDirection() == wxLayout_RightToLeft)
3737 return m_updateRegion.Contains(x-w, y, w, h) != wxOutRegion;
3738 else
3739 return m_updateRegion.Contains(x, y, w, h) != wxOutRegion;
3740 }
3741
3742 #ifdef __WXGTK3__
3743 void wxWindowGTK::GTKSendPaintEvents(cairo_t* cr)
3744 #else
3745 void wxWindowGTK::GTKSendPaintEvents(const GdkRegion* region)
3746 #endif
3747 {
3748 #ifdef __WXGTK3__
3749 m_paintContext = cr;
3750 double x1, y1, x2, y2;
3751 cairo_clip_extents(cr, &x1, &y1, &x2, &y2);
3752 m_updateRegion = wxRegion(int(x1), int(y1), int(x2 - x1), int(y2 - y1));
3753 #else // !__WXGTK3__
3754 m_updateRegion = wxRegion(region);
3755 #if wxGTK_HAS_COMPOSITING_SUPPORT
3756 cairo_t* cr = NULL;
3757 #endif
3758 #endif // !__WXGTK3__
3759 // Clip to paint region in wxClientDC
3760 m_clipPaintRegion = true;
3761
3762 m_nativeUpdateRegion = m_updateRegion;
3763
3764 if (GetLayoutDirection() == wxLayout_RightToLeft)
3765 {
3766 // Transform m_updateRegion under RTL
3767 m_updateRegion.Clear();
3768
3769 const int width = gdk_window_get_width(GTKGetDrawingWindow());
3770
3771 wxRegionIterator upd( m_nativeUpdateRegion );
3772 while (upd)
3773 {
3774 wxRect rect;
3775 rect.x = upd.GetX();
3776 rect.y = upd.GetY();
3777 rect.width = upd.GetWidth();
3778 rect.height = upd.GetHeight();
3779
3780 rect.x = width - rect.x - rect.width;
3781 m_updateRegion.Union( rect );
3782
3783 ++upd;
3784 }
3785 }
3786
3787 switch ( GetBackgroundStyle() )
3788 {
3789 case wxBG_STYLE_TRANSPARENT:
3790 #if wxGTK_HAS_COMPOSITING_SUPPORT
3791 if (IsTransparentBackgroundSupported())
3792 {
3793 // Set a transparent background, so that overlaying in parent
3794 // might indeed let see through where this child did not
3795 // explicitly paint.
3796 // NB: it works also for top level windows (but this is the
3797 // windows manager which then does the compositing job)
3798 #ifndef __WXGTK3__
3799 cr = gdk_cairo_create(m_wxwindow->window);
3800 gdk_cairo_region(cr, m_nativeUpdateRegion.GetRegion());
3801 cairo_clip(cr);
3802 #endif
3803 cairo_set_operator(cr, CAIRO_OPERATOR_CLEAR);
3804 cairo_paint(cr);
3805 cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
3806 #ifndef __WXGTK3__
3807 cairo_surface_flush(cairo_get_target(cr));
3808 #endif
3809 }
3810 #endif // wxGTK_HAS_COMPOSITING_SUPPORT
3811 break;
3812
3813 case wxBG_STYLE_ERASE:
3814 {
3815 #ifdef __WXGTK3__
3816 wxGTKCairoDC dc(cr);
3817 #else
3818 wxWindowDC dc( (wxWindow*)this );
3819 dc.SetDeviceClippingRegion( m_updateRegion );
3820
3821 // Work around gtk-qt <= 0.60 bug whereby the window colour
3822 // remains grey
3823 if ( UseBgCol() &&
3824 wxSystemOptions::
3825 GetOptionInt("gtk.window.force-background-colour") )
3826 {
3827 dc.SetBackground(GetBackgroundColour());
3828 dc.Clear();
3829 }
3830 #endif // !__WXGTK3__
3831 wxEraseEvent erase_event( GetId(), &dc );
3832 erase_event.SetEventObject( this );
3833
3834 if ( HandleWindowEvent(erase_event) )
3835 {
3836 // background erased, don't do it again
3837 break;
3838 }
3839 }
3840 // fall through
3841
3842 case wxBG_STYLE_SYSTEM:
3843 if ( GetThemeEnabled() )
3844 {
3845 GdkWindow* gdkWindow = GTKGetDrawingWindow();
3846 const int w = gdk_window_get_width(gdkWindow);
3847 const int h = gdk_window_get_height(gdkWindow);
3848 #ifdef __WXGTK3__
3849 GtkStyleContext* sc = gtk_widget_get_style_context(m_wxwindow);
3850 gtk_render_background(sc, cr, 0, 0, w, h);
3851 #else
3852 // find ancestor from which to steal background
3853 wxWindow *parent = wxGetTopLevelParent((wxWindow *)this);
3854 if (!parent)
3855 parent = (wxWindow*)this;
3856 GdkRectangle rect;
3857 m_nativeUpdateRegion.GetBox(rect.x, rect.y, rect.width, rect.height);
3858 gtk_paint_flat_box(gtk_widget_get_style(parent->m_widget),
3859 gdkWindow,
3860 gtk_widget_get_state(m_wxwindow),
3861 GTK_SHADOW_NONE,
3862 &rect,
3863 parent->m_widget,
3864 (char *)"base",
3865 0, 0, w, h);
3866 #endif // !__WXGTK3__
3867 }
3868 break;
3869
3870 case wxBG_STYLE_PAINT:
3871 // nothing to do: window will be painted over in EVT_PAINT
3872 break;
3873
3874 default:
3875 wxFAIL_MSG( "unsupported background style" );
3876 }
3877
3878 wxNcPaintEvent nc_paint_event( GetId() );
3879 nc_paint_event.SetEventObject( this );
3880 HandleWindowEvent( nc_paint_event );
3881
3882 wxPaintEvent paint_event( GetId() );
3883 paint_event.SetEventObject( this );
3884 HandleWindowEvent( paint_event );
3885
3886 #if wxGTK_HAS_COMPOSITING_SUPPORT
3887 if (IsTransparentBackgroundSupported())
3888 { // now composite children which need it
3889 // Overlay all our composite children on top of the painted area
3890 wxWindowList::compatibility_iterator node;
3891 for ( node = m_children.GetFirst(); node ; node = node->GetNext() )
3892 {
3893 wxWindow *compositeChild = node->GetData();
3894 if (compositeChild->GetBackgroundStyle() == wxBG_STYLE_TRANSPARENT)
3895 {
3896 #ifndef __WXGTK3__
3897 if (cr == NULL)
3898 {
3899 cr = gdk_cairo_create(m_wxwindow->window);
3900 gdk_cairo_region(cr, m_nativeUpdateRegion.GetRegion());
3901 cairo_clip(cr);
3902 }
3903 #endif // !__WXGTK3__
3904 GtkWidget *child = compositeChild->m_wxwindow;
3905 GtkAllocation alloc;
3906 gtk_widget_get_allocation(child, &alloc);
3907
3908 // The source data is the (composited) child
3909 gdk_cairo_set_source_window(
3910 cr, gtk_widget_get_window(child), alloc.x, alloc.y);
3911
3912 cairo_paint(cr);
3913 }
3914 }
3915 #ifndef __WXGTK3__
3916 if (cr)
3917 cairo_destroy(cr);
3918 #endif
3919 }
3920 #endif // wxGTK_HAS_COMPOSITING_SUPPORT
3921
3922 m_clipPaintRegion = false;
3923 #ifdef __WXGTK3__
3924 m_paintContext = NULL;
3925 #endif
3926 m_updateRegion.Clear();
3927 m_nativeUpdateRegion.Clear();
3928 }
3929
3930 void wxWindowGTK::SetDoubleBuffered( bool on )
3931 {
3932 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3933
3934 if ( m_wxwindow )
3935 gtk_widget_set_double_buffered( m_wxwindow, on );
3936 }
3937
3938 bool wxWindowGTK::IsDoubleBuffered() const
3939 {
3940 return gtk_widget_get_double_buffered( m_wxwindow ) != 0;
3941 }
3942
3943 void wxWindowGTK::ClearBackground()
3944 {
3945 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
3946 }
3947
3948 #if wxUSE_TOOLTIPS
3949 void wxWindowGTK::DoSetToolTip( wxToolTip *tip )
3950 {
3951 if (m_tooltip != tip)
3952 {
3953 wxWindowBase::DoSetToolTip(tip);
3954
3955 if (m_tooltip)
3956 m_tooltip->GTKSetWindow(static_cast<wxWindow*>(this));
3957 else
3958 GTKApplyToolTip(NULL);
3959 }
3960 }
3961
3962 void wxWindowGTK::GTKApplyToolTip(const char* tip)
3963 {
3964 wxToolTip::GTKApply(GetConnectWidget(), tip);
3965 }
3966 #endif // wxUSE_TOOLTIPS
3967
3968 bool wxWindowGTK::SetBackgroundColour( const wxColour &colour )
3969 {
3970 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
3971
3972 if (!wxWindowBase::SetBackgroundColour(colour))
3973 return false;
3974
3975 #ifndef __WXGTK3__
3976 if (colour.IsOk())
3977 {
3978 // We need the pixel value e.g. for background clearing.
3979 m_backgroundColour.CalcPixel(gtk_widget_get_colormap(m_widget));
3980 }
3981 #endif
3982
3983 // apply style change (forceStyle=true so that new style is applied
3984 // even if the bg colour changed from valid to wxNullColour)
3985 GTKApplyWidgetStyle(true);
3986
3987 return true;
3988 }
3989
3990 bool wxWindowGTK::SetForegroundColour( const wxColour &colour )
3991 {
3992 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
3993
3994 if (!wxWindowBase::SetForegroundColour(colour))
3995 {
3996 return false;
3997 }
3998
3999 #ifndef __WXGTK3__
4000 if (colour.IsOk())
4001 {
4002 // We need the pixel value e.g. for background clearing.
4003 m_foregroundColour.CalcPixel(gtk_widget_get_colormap(m_widget));
4004 }
4005 #endif
4006
4007 // apply style change (forceStyle=true so that new style is applied
4008 // even if the bg colour changed from valid to wxNullColour):
4009 GTKApplyWidgetStyle(true);
4010
4011 return true;
4012 }
4013
4014 PangoContext *wxWindowGTK::GTKGetPangoDefaultContext()
4015 {
4016 return gtk_widget_get_pango_context( m_widget );
4017 }
4018
4019 #ifndef __WXGTK3__
4020 GtkRcStyle* wxWindowGTK::GTKCreateWidgetStyle()
4021 {
4022 GtkRcStyle *style = gtk_rc_style_new();
4023
4024 if ( m_font.IsOk() )
4025 {
4026 style->font_desc =
4027 pango_font_description_copy( m_font.GetNativeFontInfo()->description );
4028 }
4029
4030 int flagsNormal = 0,
4031 flagsPrelight = 0,
4032 flagsActive = 0,
4033 flagsInsensitive = 0;
4034
4035 if ( m_foregroundColour.IsOk() )
4036 {
4037 const GdkColor *fg = m_foregroundColour.GetColor();
4038
4039 style->fg[GTK_STATE_NORMAL] =
4040 style->text[GTK_STATE_NORMAL] = *fg;
4041 flagsNormal |= GTK_RC_FG | GTK_RC_TEXT;
4042
4043 style->fg[GTK_STATE_PRELIGHT] =
4044 style->text[GTK_STATE_PRELIGHT] = *fg;
4045 flagsPrelight |= GTK_RC_FG | GTK_RC_TEXT;
4046
4047 style->fg[GTK_STATE_ACTIVE] =
4048 style->text[GTK_STATE_ACTIVE] = *fg;
4049 flagsActive |= GTK_RC_FG | GTK_RC_TEXT;
4050 }
4051
4052 if ( m_backgroundColour.IsOk() )
4053 {
4054 const GdkColor *bg = m_backgroundColour.GetColor();
4055
4056 style->bg[GTK_STATE_NORMAL] =
4057 style->base[GTK_STATE_NORMAL] = *bg;
4058 flagsNormal |= GTK_RC_BG | GTK_RC_BASE;
4059
4060 style->bg[GTK_STATE_PRELIGHT] =
4061 style->base[GTK_STATE_PRELIGHT] = *bg;
4062 flagsPrelight |= GTK_RC_BG | GTK_RC_BASE;
4063
4064 style->bg[GTK_STATE_ACTIVE] =
4065 style->base[GTK_STATE_ACTIVE] = *bg;
4066 flagsActive |= GTK_RC_BG | GTK_RC_BASE;
4067
4068 style->bg[GTK_STATE_INSENSITIVE] =
4069 style->base[GTK_STATE_INSENSITIVE] = *bg;
4070 flagsInsensitive |= GTK_RC_BG | GTK_RC_BASE;
4071 }
4072
4073 style->color_flags[GTK_STATE_NORMAL] = (GtkRcFlags)flagsNormal;
4074 style->color_flags[GTK_STATE_PRELIGHT] = (GtkRcFlags)flagsPrelight;
4075 style->color_flags[GTK_STATE_ACTIVE] = (GtkRcFlags)flagsActive;
4076 style->color_flags[GTK_STATE_INSENSITIVE] = (GtkRcFlags)flagsInsensitive;
4077
4078 return style;
4079 }
4080 #endif // !__WXGTK3__
4081
4082 void wxWindowGTK::GTKApplyWidgetStyle(bool forceStyle)
4083 {
4084 if (forceStyle || m_font.IsOk() ||
4085 m_foregroundColour.IsOk() || m_backgroundColour.IsOk())
4086 {
4087 #ifdef __WXGTK3__
4088 if (m_backgroundColour.IsOk())
4089 {
4090 // create a GtkStyleProvider to override "background-image"
4091 if (m_styleProvider == NULL)
4092 m_styleProvider = GTK_STYLE_PROVIDER(gtk_css_provider_new());
4093 const char css[] =
4094 "*{background-image:-gtk-gradient(linear,0 0,0 1,"
4095 "from(rgba(%u,%u,%u,%g)),to(rgba(%u,%u,%u,%g)))}";
4096 char buf[sizeof(css) + 20];
4097 const unsigned r = m_backgroundColour.Red();
4098 const unsigned g = m_backgroundColour.Green();
4099 const unsigned b = m_backgroundColour.Blue();
4100 const double a = m_backgroundColour.Alpha() / 255.0;
4101 g_snprintf(buf, sizeof(buf), css, r, g, b, a, r, g, b, a);
4102 gtk_css_provider_load_from_data(GTK_CSS_PROVIDER(m_styleProvider), buf, -1, NULL);
4103 }
4104 DoApplyWidgetStyle(NULL);
4105 #else
4106 GtkRcStyle* style = GTKCreateWidgetStyle();
4107 DoApplyWidgetStyle(style);
4108 g_object_unref(style);
4109 #endif
4110 }
4111
4112 // Style change may affect GTK+'s size calculation:
4113 InvalidateBestSize();
4114 }
4115
4116 void wxWindowGTK::DoApplyWidgetStyle(GtkRcStyle *style)
4117 {
4118 GtkWidget* widget = m_wxwindow ? m_wxwindow : m_widget;
4119
4120 // block the signal temporarily to avoid sending
4121 // wxSysColourChangedEvents when we change the colours ourselves
4122 bool unblock = false;
4123 if (m_wxwindow && IsTopLevel())
4124 {
4125 unblock = true;
4126 g_signal_handlers_block_by_func(
4127 m_wxwindow, (void*)style_updated, this);
4128 }
4129
4130 GTKApplyStyle(widget, style);
4131
4132 if (unblock)
4133 {
4134 g_signal_handlers_unblock_by_func(
4135 m_wxwindow, (void*)style_updated, this);
4136 }
4137 }
4138
4139 void wxWindowGTK::GTKApplyStyle(GtkWidget* widget, GtkRcStyle* WXUNUSED_IN_GTK3(style))
4140 {
4141 #ifdef __WXGTK3__
4142 const PangoFontDescription* pfd = NULL;
4143 if (m_font.IsOk())
4144 pfd = pango_font_description_copy(m_font.GetNativeFontInfo()->description);
4145 gtk_widget_override_font(widget, pfd);
4146 gtk_widget_override_color(widget, GTK_STATE_FLAG_NORMAL, m_foregroundColour);
4147 gtk_widget_override_background_color(widget, GTK_STATE_FLAG_NORMAL, m_backgroundColour);
4148
4149 // setting background color has no effect with some themes when the widget style
4150 // has a "background-image" property, so we need to override that as well
4151
4152 GtkStyleContext* context = gtk_widget_get_style_context(widget);
4153 if (m_styleProvider)
4154 gtk_style_context_remove_provider(context, m_styleProvider);
4155 cairo_pattern_t* pattern = NULL;
4156 if (m_backgroundColour.IsOk())
4157 {
4158 gtk_style_context_get(context,
4159 GTK_STATE_FLAG_NORMAL, "background-image", &pattern, NULL);
4160 }
4161 if (pattern)
4162 {
4163 cairo_pattern_destroy(pattern);
4164 gtk_style_context_add_provider(context,
4165 m_styleProvider, GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
4166 }
4167 #else
4168 gtk_widget_modify_style(widget, style);
4169 #endif
4170 }
4171
4172 bool wxWindowGTK::SetBackgroundStyle(wxBackgroundStyle style)
4173 {
4174 if (!wxWindowBase::SetBackgroundStyle(style))
4175 return false;
4176
4177 #ifndef __WXGTK3__
4178 GdkWindow *window;
4179 if ( m_wxwindow )
4180 {
4181 window = GTKGetDrawingWindow();
4182 }
4183 else
4184 {
4185 GtkWidget * const w = GetConnectWidget();
4186 window = w ? gtk_widget_get_window(w) : NULL;
4187 }
4188
4189 bool wantNoBackPixmap = style == wxBG_STYLE_PAINT || style == wxBG_STYLE_TRANSPARENT;
4190
4191 if ( wantNoBackPixmap )
4192 {
4193 if (window)
4194 {
4195 // Make sure GDK/X11 doesn't refresh the window
4196 // automatically.
4197 gdk_window_set_back_pixmap( window, NULL, FALSE );
4198 m_needsStyleChange = false;
4199 }
4200 else // window not realized yet
4201 {
4202 // Do when window is realized
4203 m_needsStyleChange = true;
4204 }
4205
4206 // Don't apply widget style, or we get a grey background
4207 }
4208 else
4209 {
4210 // apply style change (forceStyle=true so that new style is applied
4211 // even if the bg colour changed from valid to wxNullColour):
4212 GTKApplyWidgetStyle(true);
4213 }
4214 #endif // !__WXGTK3__
4215
4216 return true;
4217 }
4218
4219 bool wxWindowGTK::IsTransparentBackgroundSupported(wxString* reason) const
4220 {
4221 #if wxGTK_HAS_COMPOSITING_SUPPORT
4222 #ifndef __WXGTK3__
4223 if (gtk_check_version(wxGTK_VERSION_REQUIRED_FOR_COMPOSITING) != NULL)
4224 {
4225 if (reason)
4226 {
4227 *reason = _("GTK+ installed on this machine is too old to "
4228 "support screen compositing, please install "
4229 "GTK+ 2.12 or later.");
4230 }
4231
4232 return false;
4233 }
4234 #endif // !__WXGTK3__
4235
4236 // NB: We don't check here if the particular kind of widget supports
4237 // transparency, we check only if it would be possible for a generic window
4238
4239 wxCHECK_MSG ( m_widget, false, "Window must be created first" );
4240
4241 if (!gdk_screen_is_composited(gtk_widget_get_screen(m_widget)))
4242 {
4243 if (reason)
4244 {
4245 *reason = _("Compositing not supported by this system, "
4246 "please enable it in your Window Manager.");
4247 }
4248
4249 return false;
4250 }
4251
4252 return true;
4253 #else
4254 if (reason)
4255 {
4256 *reason = _("This program was compiled with a too old version of GTK+, "
4257 "please rebuild with GTK+ 2.12 or newer.");
4258 }
4259
4260 return false;
4261 #endif // wxGTK_HAS_COMPOSITING_SUPPORT/!wxGTK_HAS_COMPOSITING_SUPPORT
4262 }
4263
4264 // ----------------------------------------------------------------------------
4265 // Pop-up menu stuff
4266 // ----------------------------------------------------------------------------
4267
4268 #if wxUSE_MENUS_NATIVE
4269
4270 extern "C" {
4271 static
4272 void wxPopupMenuPositionCallback( GtkMenu *menu,
4273 gint *x, gint *y,
4274 gboolean * WXUNUSED(whatever),
4275 gpointer user_data )
4276 {
4277 // ensure that the menu appears entirely on screen
4278 GtkRequisition req;
4279 gtk_widget_get_child_requisition(GTK_WIDGET(menu), &req);
4280
4281 wxSize sizeScreen = wxGetDisplaySize();
4282 wxPoint *pos = (wxPoint*)user_data;
4283
4284 gint xmax = sizeScreen.x - req.width,
4285 ymax = sizeScreen.y - req.height;
4286
4287 *x = pos->x < xmax ? pos->x : xmax;
4288 *y = pos->y < ymax ? pos->y : ymax;
4289 }
4290 }
4291
4292 bool wxWindowGTK::DoPopupMenu( wxMenu *menu, int x, int y )
4293 {
4294 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
4295
4296 menu->UpdateUI();
4297
4298 wxPoint pos;
4299 gpointer userdata;
4300 GtkMenuPositionFunc posfunc;
4301 if ( x == -1 && y == -1 )
4302 {
4303 // use GTK's default positioning algorithm
4304 userdata = NULL;
4305 posfunc = NULL;
4306 }
4307 else
4308 {
4309 pos = ClientToScreen(wxPoint(x, y));
4310 userdata = &pos;
4311 posfunc = wxPopupMenuPositionCallback;
4312 }
4313
4314 menu->m_popupShown = true;
4315 gtk_menu_popup(
4316 GTK_MENU(menu->m_menu),
4317 NULL, // parent menu shell
4318 NULL, // parent menu item
4319 posfunc, // function to position it
4320 userdata, // client data
4321 0, // button used to activate it
4322 gtk_get_current_event_time()
4323 );
4324
4325 while (menu->m_popupShown)
4326 {
4327 gtk_main_iteration();
4328 }
4329
4330 return true;
4331 }
4332
4333 #endif // wxUSE_MENUS_NATIVE
4334
4335 #if wxUSE_DRAG_AND_DROP
4336
4337 void wxWindowGTK::SetDropTarget( wxDropTarget *dropTarget )
4338 {
4339 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4340
4341 GtkWidget *dnd_widget = GetConnectWidget();
4342
4343 if (m_dropTarget) m_dropTarget->GtkUnregisterWidget( dnd_widget );
4344
4345 if (m_dropTarget) delete m_dropTarget;
4346 m_dropTarget = dropTarget;
4347
4348 if (m_dropTarget) m_dropTarget->GtkRegisterWidget( dnd_widget );
4349 }
4350
4351 #endif // wxUSE_DRAG_AND_DROP
4352
4353 GtkWidget* wxWindowGTK::GetConnectWidget()
4354 {
4355 GtkWidget *connect_widget = m_widget;
4356 if (m_wxwindow) connect_widget = m_wxwindow;
4357
4358 return connect_widget;
4359 }
4360
4361 bool wxWindowGTK::GTKIsOwnWindow(GdkWindow *window) const
4362 {
4363 wxArrayGdkWindows windowsThis;
4364 GdkWindow * const winThis = GTKGetWindow(windowsThis);
4365
4366 return winThis ? window == winThis
4367 : windowsThis.Index(window) != wxNOT_FOUND;
4368 }
4369
4370 GdkWindow *wxWindowGTK::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
4371 {
4372 return m_wxwindow ? GTKGetDrawingWindow() : gtk_widget_get_window(m_widget);
4373 }
4374
4375 bool wxWindowGTK::SetFont( const wxFont &font )
4376 {
4377 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
4378
4379 if (!wxWindowBase::SetFont(font))
4380 return false;
4381
4382 // apply style change (forceStyle=true so that new style is applied
4383 // even if the font changed from valid to wxNullFont):
4384 GTKApplyWidgetStyle(true);
4385
4386 return true;
4387 }
4388
4389 void wxWindowGTK::DoCaptureMouse()
4390 {
4391 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4392
4393 GdkWindow *window = NULL;
4394 if (m_wxwindow)
4395 window = GTKGetDrawingWindow();
4396 else
4397 window = gtk_widget_get_window(GetConnectWidget());
4398
4399 wxCHECK_RET( window, wxT("CaptureMouse() failed") );
4400
4401 const wxCursor* cursor = &m_cursor;
4402 if (!cursor->IsOk())
4403 cursor = wxSTANDARD_CURSOR;
4404
4405 gdk_pointer_grab( window, FALSE,
4406 (GdkEventMask)
4407 (GDK_BUTTON_PRESS_MASK |
4408 GDK_BUTTON_RELEASE_MASK |
4409 GDK_POINTER_MOTION_HINT_MASK |
4410 GDK_POINTER_MOTION_MASK),
4411 NULL,
4412 cursor->GetCursor(),
4413 (guint32)GDK_CURRENT_TIME );
4414 g_captureWindow = this;
4415 g_captureWindowHasMouse = true;
4416 }
4417
4418 void wxWindowGTK::DoReleaseMouse()
4419 {
4420 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4421
4422 wxCHECK_RET( g_captureWindow, wxT("can't release mouse - not captured") );
4423
4424 g_captureWindow = NULL;
4425
4426 GdkWindow *window = NULL;
4427 if (m_wxwindow)
4428 window = GTKGetDrawingWindow();
4429 else
4430 window = gtk_widget_get_window(GetConnectWidget());
4431
4432 if (!window)
4433 return;
4434
4435 gdk_pointer_ungrab ( (guint32)GDK_CURRENT_TIME );
4436 }
4437
4438 void wxWindowGTK::GTKReleaseMouseAndNotify()
4439 {
4440 DoReleaseMouse();
4441 wxMouseCaptureLostEvent evt(GetId());
4442 evt.SetEventObject( this );
4443 HandleWindowEvent( evt );
4444 }
4445
4446 /* static */
4447 wxWindow *wxWindowBase::GetCapture()
4448 {
4449 return (wxWindow *)g_captureWindow;
4450 }
4451
4452 bool wxWindowGTK::IsRetained() const
4453 {
4454 return false;
4455 }
4456
4457 void wxWindowGTK::SetScrollbar(int orient,
4458 int pos,
4459 int thumbVisible,
4460 int range,
4461 bool WXUNUSED(update))
4462 {
4463 const int dir = ScrollDirFromOrient(orient);
4464 GtkRange* const sb = m_scrollBar[dir];
4465 wxCHECK_RET( sb, wxT("this window is not scrollable") );
4466
4467 if (range <= 0)
4468 {
4469 // GtkRange requires upper > lower
4470 range =
4471 thumbVisible = 1;
4472 }
4473
4474 g_signal_handlers_block_by_func(
4475 sb, (void*)gtk_scrollbar_value_changed, this);
4476
4477 gtk_range_set_increments(sb, 1, thumbVisible);
4478 gtk_adjustment_set_page_size(gtk_range_get_adjustment(sb), thumbVisible);
4479 gtk_range_set_range(sb, 0, range);
4480 gtk_range_set_value(sb, pos);
4481 m_scrollPos[dir] = gtk_range_get_value(sb);
4482
4483 g_signal_handlers_unblock_by_func(
4484 sb, (void*)gtk_scrollbar_value_changed, this);
4485 }
4486
4487 void wxWindowGTK::SetScrollPos(int orient, int pos, bool WXUNUSED(refresh))
4488 {
4489 const int dir = ScrollDirFromOrient(orient);
4490 GtkRange * const sb = m_scrollBar[dir];
4491 wxCHECK_RET( sb, wxT("this window is not scrollable") );
4492
4493 // This check is more than an optimization. Without it, the slider
4494 // will not move smoothly while tracking when using wxScrollHelper.
4495 if (GetScrollPos(orient) != pos)
4496 {
4497 g_signal_handlers_block_by_func(
4498 sb, (void*)gtk_scrollbar_value_changed, this);
4499
4500 gtk_range_set_value(sb, pos);
4501 m_scrollPos[dir] = gtk_range_get_value(sb);
4502
4503 g_signal_handlers_unblock_by_func(
4504 sb, (void*)gtk_scrollbar_value_changed, this);
4505 }
4506 }
4507
4508 int wxWindowGTK::GetScrollThumb(int orient) const
4509 {
4510 GtkRange * const sb = m_scrollBar[ScrollDirFromOrient(orient)];
4511 wxCHECK_MSG( sb, 0, wxT("this window is not scrollable") );
4512
4513 return wxRound(gtk_adjustment_get_page_size(gtk_range_get_adjustment(sb)));
4514 }
4515
4516 int wxWindowGTK::GetScrollPos( int orient ) const
4517 {
4518 GtkRange * const sb = m_scrollBar[ScrollDirFromOrient(orient)];
4519 wxCHECK_MSG( sb, 0, wxT("this window is not scrollable") );
4520
4521 return wxRound(gtk_range_get_value(sb));
4522 }
4523
4524 int wxWindowGTK::GetScrollRange( int orient ) const
4525 {
4526 GtkRange * const sb = m_scrollBar[ScrollDirFromOrient(orient)];
4527 wxCHECK_MSG( sb, 0, wxT("this window is not scrollable") );
4528
4529 return wxRound(gtk_adjustment_get_upper(gtk_range_get_adjustment(sb)));
4530 }
4531
4532 // Determine if increment is the same as +/-x, allowing for some small
4533 // difference due to possible inexactness in floating point arithmetic
4534 static inline bool IsScrollIncrement(double increment, double x)
4535 {
4536 wxASSERT(increment > 0);
4537 const double tolerance = 1.0 / 1024;
4538 return fabs(increment - fabs(x)) < tolerance;
4539 }
4540
4541 wxEventType wxWindowGTK::GTKGetScrollEventType(GtkRange* range)
4542 {
4543 wxASSERT(range == m_scrollBar[0] || range == m_scrollBar[1]);
4544
4545 const int barIndex = range == m_scrollBar[1];
4546
4547 const double value = gtk_range_get_value(range);
4548
4549 // save previous position
4550 const double oldPos = m_scrollPos[barIndex];
4551 // update current position
4552 m_scrollPos[barIndex] = value;
4553 // If event should be ignored, or integral position has not changed
4554 if (g_blockEventsOnDrag || wxRound(value) == wxRound(oldPos))
4555 {
4556 return wxEVT_NULL;
4557 }
4558
4559 wxEventType eventType = wxEVT_SCROLL_THUMBTRACK;
4560 if (!m_isScrolling)
4561 {
4562 // Difference from last change event
4563 const double diff = value - oldPos;
4564 const bool isDown = diff > 0;
4565
4566 GtkAdjustment* adj = gtk_range_get_adjustment(range);
4567 if (IsScrollIncrement(gtk_adjustment_get_step_increment(adj), diff))
4568 {
4569 eventType = isDown ? wxEVT_SCROLL_LINEDOWN : wxEVT_SCROLL_LINEUP;
4570 }
4571 else if (IsScrollIncrement(gtk_adjustment_get_page_increment(adj), diff))
4572 {
4573 eventType = isDown ? wxEVT_SCROLL_PAGEDOWN : wxEVT_SCROLL_PAGEUP;
4574 }
4575 else if (m_mouseButtonDown)
4576 {
4577 // Assume track event
4578 m_isScrolling = true;
4579 }
4580 }
4581 return eventType;
4582 }
4583
4584 void wxWindowGTK::ScrollWindow( int dx, int dy, const wxRect* WXUNUSED(rect) )
4585 {
4586 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4587
4588 wxCHECK_RET( m_wxwindow != NULL, wxT("window needs client area for scrolling") );
4589
4590 // No scrolling requested.
4591 if ((dx == 0) && (dy == 0)) return;
4592
4593 m_clipPaintRegion = true;
4594
4595 WX_PIZZA(m_wxwindow)->scroll(dx, dy);
4596
4597 m_clipPaintRegion = false;
4598
4599 #if wxUSE_CARET
4600 bool restoreCaret = (GetCaret() != NULL && GetCaret()->IsVisible());
4601 if (restoreCaret)
4602 {
4603 wxRect caretRect(GetCaret()->GetPosition(), GetCaret()->GetSize());
4604 if (dx > 0)
4605 caretRect.width += dx;
4606 else
4607 {
4608 caretRect.x += dx; caretRect.width -= dx;
4609 }
4610 if (dy > 0)
4611 caretRect.height += dy;
4612 else
4613 {
4614 caretRect.y += dy; caretRect.height -= dy;
4615 }
4616
4617 RefreshRect(caretRect);
4618 }
4619 #endif // wxUSE_CARET
4620 }
4621
4622 void wxWindowGTK::GTKScrolledWindowSetBorder(GtkWidget* w, int wxstyle)
4623 {
4624 //RN: Note that static controls usually have no border on gtk, so maybe
4625 //it makes sense to treat that as simply no border at the wx level
4626 //as well...
4627 if (!(wxstyle & wxNO_BORDER) && !(wxstyle & wxBORDER_STATIC))
4628 {
4629 GtkShadowType gtkstyle;
4630
4631 if(wxstyle & wxBORDER_RAISED)
4632 gtkstyle = GTK_SHADOW_OUT;
4633 else if ((wxstyle & wxBORDER_SUNKEN) || (wxstyle & wxBORDER_THEME))
4634 gtkstyle = GTK_SHADOW_IN;
4635 #if 0
4636 // Now obsolete
4637 else if (wxstyle & wxBORDER_DOUBLE)
4638 gtkstyle = GTK_SHADOW_ETCHED_IN;
4639 #endif
4640 else //default
4641 gtkstyle = GTK_SHADOW_IN;
4642
4643 gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(w),
4644 gtkstyle );
4645 }
4646 }
4647
4648 // Find the wxWindow at the current mouse position, also returning the mouse
4649 // position.
4650 wxWindow* wxFindWindowAtPointer(wxPoint& pt)
4651 {
4652 pt = wxGetMousePosition();
4653 wxWindow* found = wxFindWindowAtPoint(pt);
4654 return found;
4655 }
4656
4657 // Get the current mouse position.
4658 wxPoint wxGetMousePosition()
4659 {
4660 int x, y;
4661 GdkModifierType unused;
4662 GetMouseState(x, y, unused);
4663 return wxPoint(x, y);
4664 }
4665
4666 GdkWindow* wxWindowGTK::GTKGetDrawingWindow() const
4667 {
4668 GdkWindow* window = NULL;
4669 if (m_wxwindow)
4670 window = gtk_widget_get_window(m_wxwindow);
4671 return window;
4672 }
4673
4674 // ----------------------------------------------------------------------------
4675 // freeze/thaw
4676 // ----------------------------------------------------------------------------
4677
4678 void wxWindowGTK::GTKFreezeWidget(GtkWidget* widget)
4679 {
4680 if (widget && gtk_widget_get_has_window(widget))
4681 {
4682 GdkWindow* window = gtk_widget_get_window(widget);
4683 if (window)
4684 gdk_window_freeze_updates(window);
4685 }
4686 }
4687
4688 void wxWindowGTK::GTKThawWidget(GtkWidget* widget)
4689 {
4690 if (widget && gtk_widget_get_has_window(widget))
4691 {
4692 GdkWindow* window = gtk_widget_get_window(widget);
4693 if (window)
4694 gdk_window_thaw_updates(window);
4695 }
4696 }
4697
4698 void wxWindowGTK::DoFreeze()
4699 {
4700 GtkWidget* widget = m_wxwindow;
4701 if (widget == NULL)
4702 widget = m_widget;
4703 GTKFreezeWidget(widget);
4704 }
4705
4706 void wxWindowGTK::DoThaw()
4707 {
4708 GtkWidget* widget = m_wxwindow;
4709 if (widget == NULL)
4710 widget = m_widget;
4711 GTKThawWidget(widget);
4712 }
wxWidgets (Impactor)