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Define NDEBUG when building 3rd party libraries.
[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
36 #include <ctype.h>
37
38 #include "wx/gtk/private.h"
39 #include "wx/gtk/private/win_gtk.h"
40 #include <gdk/gdkkeysyms.h>
41 #include <gdk/gdkx.h>
42
43 #if !GTK_CHECK_VERSION(2,10,0)
44 // GTK+ can reliably detect Meta key state only since 2.10 when
45 // GDK_META_MASK was introduced -- there wasn't any way to detect it
46 // in older versions. wxGTK used GDK_MOD2_MASK for this purpose, but
47 // GDK_MOD2_MASK is documented as:
48 //
49 // the fifth modifier key (it depends on the modifier mapping of the X
50 // server which key is interpreted as this modifier)
51 //
52 // In other words, it isn't guaranteed to map to Meta. This is a real
53 // problem: it is common to map NumLock to it (in fact, it's an exception
54 // if the X server _doesn't_ use it for NumLock). So the old code caused
55 // wxKeyEvent::MetaDown() to always return true as long as NumLock was on
56 // on many systems, which broke all applications using
57 // wxKeyEvent::GetModifiers() to check modifiers state (see e.g. here:
58 // http://tinyurl.com/56lsk2).
59 //
60 // Because of this, it's better to not detect Meta key state at all than
61 // to detect it incorrectly. Hence the following #define, which causes
62 // m_metaDown to be always set to false.
63 #define GDK_META_MASK 0
64 #endif
65
66 //-----------------------------------------------------------------------------
67 // documentation on internals
68 //-----------------------------------------------------------------------------
69
70 /*
71 I have been asked several times about writing some documentation about
72 the GTK port of wxWidgets, especially its internal structures. Obviously,
73 you cannot understand wxGTK without knowing a little about the GTK, but
74 some more information about what the wxWindow, which is the base class
75 for all other window classes, does seems required as well.
76
77 I)
78
79 What does wxWindow do? It contains the common interface for the following
80 jobs of its descendants:
81
82 1) Define the rudimentary behaviour common to all window classes, such as
83 resizing, intercepting user input (so as to make it possible to use these
84 events for special purposes in a derived class), window names etc.
85
86 2) Provide the possibility to contain and manage children, if the derived
87 class is allowed to contain children, which holds true for those window
88 classes which do not display a native GTK widget. To name them, these
89 classes are wxPanel, wxScrolledWindow, wxDialog, wxFrame. The MDI frame-
90 work classes are a special case and are handled a bit differently from
91 the rest. The same holds true for the wxNotebook class.
92
93 3) Provide the possibility to draw into a client area of a window. This,
94 too, only holds true for classes that do not display a native GTK widget
95 as above.
96
97 4) Provide the entire mechanism for scrolling widgets. This actual inter-
98 face for this is usually in wxScrolledWindow, but the GTK implementation
99 is in this class.
100
101 5) A multitude of helper or extra methods for special purposes, such as
102 Drag'n'Drop, managing validators etc.
103
104 6) Display a border (sunken, raised, simple or none).
105
106 Normally one might expect, that one wxWidgets window would always correspond
107 to one GTK widget. Under GTK, there is no such all-round widget that has all
108 the functionality. Moreover, the GTK defines a client area as a different
109 widget from the actual widget you are handling. Last but not least some
110 special classes (e.g. wxFrame) handle different categories of widgets and
111 still have the possibility to draw something in the client area.
112 It was therefore required to write a special purpose GTK widget, that would
113 represent a client area in the sense of wxWidgets capable to do the jobs
114 2), 3) and 4). I have written this class and it resides in win_gtk.c of
115 this directory.
116
117 All windows must have a widget, with which they interact with other under-
118 lying GTK widgets. It is this widget, e.g. that has to be resized etc and
119 the wxWindow class has a member variable called m_widget which holds a
120 pointer to this widget. When the window class represents a GTK native widget,
121 this is (in most cases) the only GTK widget the class manages. E.g. the
122 wxStaticText class handles only a GtkLabel widget a pointer to which you
123 can find in m_widget (defined in wxWindow)
124
125 When the class has a client area for drawing into and for containing children
126 it has to handle the client area widget (of the type wxPizza, defined in
127 win_gtk.cpp), but there could be any number of widgets, handled by a class.
128 The common rule for all windows is only, that the widget that interacts with
129 the rest of GTK must be referenced in m_widget and all other widgets must be
130 children of this widget on the GTK level. The top-most widget, which also
131 represents the client area, must be in the m_wxwindow field and must be of
132 the type wxPizza.
133
134 As I said, the window classes that display a GTK native widget only have
135 one widget, so in the case of e.g. the wxButton class m_widget holds a
136 pointer to a GtkButton widget. But windows with client areas (for drawing
137 and children) have a m_widget field that is a pointer to a GtkScrolled-
138 Window and a m_wxwindow field that is pointer to a wxPizza and this
139 one is (in the GTK sense) a child of the GtkScrolledWindow.
140
141 If the m_wxwindow field is set, then all input to this widget is inter-
142 cepted and sent to the wxWidgets class. If not, all input to the widget
143 that gets pointed to by m_widget gets intercepted and sent to the class.
144
145 II)
146
147 The design of scrolling in wxWidgets is markedly different from that offered
148 by the GTK itself and therefore we cannot simply take it as it is. In GTK,
149 clicking on a scrollbar belonging to scrolled window will inevitably move
150 the window. In wxWidgets, the scrollbar will only emit an event, send this
151 to (normally) a wxScrolledWindow and that class will call ScrollWindow()
152 which actually moves the window and its sub-windows. Note that wxPizza
153 memorizes how much it has been scrolled but that wxWidgets forgets this
154 so that the two coordinates systems have to be kept in synch. This is done
155 in various places using the pizza->m_scroll_x and pizza->m_scroll_y values.
156
157 III)
158
159 Singularly the most broken code in GTK is the code that is supposed to
160 inform subwindows (child windows) about new positions. Very often, duplicate
161 events are sent without changes in size or position, equally often no
162 events are sent at all (All this is due to a bug in the GtkContainer code
163 which got fixed in GTK 1.2.6). For that reason, wxGTK completely ignores
164 GTK's own system and it simply waits for size events for toplevel windows
165 and then iterates down the respective size events to all window. This has
166 the disadvantage that windows might get size events before the GTK widget
167 actually has the reported size. This doesn't normally pose any problem, but
168 the OpenGL drawing routines rely on correct behaviour. Therefore, I have
169 added the m_nativeSizeEvents flag, which is true only for the OpenGL canvas,
170 i.e. the wxGLCanvas will emit a size event, when (and not before) the X11
171 window that is used for OpenGL output really has that size (as reported by
172 GTK).
173
174 IV)
175
176 If someone at some point of time feels the immense desire to have a look at,
177 change or attempt to optimise the Refresh() logic, this person will need an
178 intimate understanding of what "draw" and "expose" events are and what
179 they are used for, in particular when used in connection with GTK's
180 own windowless widgets. Beware.
181
182 V)
183
184 Cursors, too, have been a constant source of pleasure. The main difficulty
185 is that a GdkWindow inherits a cursor if the programmer sets a new cursor
186 for the parent. To prevent this from doing too much harm, I use idle time
187 to set the cursor over and over again, starting from the toplevel windows
188 and ending with the youngest generation (speaking of parent and child windows).
189 Also don't forget that cursors (like much else) are connected to GdkWindows,
190 not GtkWidgets and that the "window" field of a GtkWidget might very well
191 point to the GdkWindow of the parent widget (-> "window-less widget") and
192 that the two obviously have very different meanings.
193
194 */
195
196 //-----------------------------------------------------------------------------
197 // data
198 //-----------------------------------------------------------------------------
199
200 // Don't allow event propagation during drag
201 bool g_blockEventsOnDrag;
202 // Don't allow mouse event propagation during scroll
203 bool g_blockEventsOnScroll;
204 extern wxCursor g_globalCursor;
205
206 // mouse capture state: the window which has it and if the mouse is currently
207 // inside it
208 static wxWindowGTK *g_captureWindow = NULL;
209 static bool g_captureWindowHasMouse = false;
210
211 // The window that currently has focus:
212 static wxWindowGTK *gs_currentFocus = NULL;
213 // The window that is scheduled to get focus in the next event loop iteration
214 // or NULL if there's no pending focus change:
215 static wxWindowGTK *gs_pendingFocus = NULL;
216
217 // the window that has deferred focus-out event pending, if any (see
218 // GTKAddDeferredFocusOut() for details)
219 static wxWindowGTK *gs_deferredFocusOut = NULL;
220
221 // global variables because GTK+ DnD want to have the
222 // mouse event that caused it
223 GdkEvent *g_lastMouseEvent = NULL;
224 int g_lastButtonNumber = 0;
225
226 //-----------------------------------------------------------------------------
227 // debug
228 //-----------------------------------------------------------------------------
229
230 // the trace mask used for the focus debugging messages
231 #define TRACE_FOCUS wxT("focus")
232
233 //-----------------------------------------------------------------------------
234 // missing gdk functions
235 //-----------------------------------------------------------------------------
236
237 void
238 gdk_window_warp_pointer (GdkWindow *window,
239 gint x,
240 gint y)
241 {
242 if (!window)
243 window = gdk_get_default_root_window();
244
245 if (!GDK_WINDOW_DESTROYED(window))
246 {
247 XWarpPointer (GDK_WINDOW_XDISPLAY(window),
248 None, /* not source window -> move from anywhere */
249 GDK_WINDOW_XID(window), /* dest window */
250 0, 0, 0, 0, /* not source window -> move from anywhere */
251 x, y );
252 }
253 }
254
255
256 //-----------------------------------------------------------------------------
257 // "size_request" of m_widget
258 //-----------------------------------------------------------------------------
259
260 extern "C" {
261 static void
262 wxgtk_window_size_request_callback(GtkWidget * WXUNUSED(widget),
263 GtkRequisition *requisition,
264 wxWindow * win)
265 {
266 int w, h;
267 win->GetSize( &w, &h );
268 if (w < 2)
269 w = 2;
270 if (h < 2)
271 h = 2;
272
273 requisition->height = h;
274 requisition->width = w;
275 }
276 }
277
278 //-----------------------------------------------------------------------------
279 // "expose_event" of m_wxwindow
280 //-----------------------------------------------------------------------------
281
282 extern "C" {
283 static gboolean
284 gtk_window_expose_callback( GtkWidget* widget,
285 GdkEventExpose *gdk_event,
286 wxWindow *win )
287 {
288 if (gdk_event->window == widget->window)
289 {
290 win->GetUpdateRegion() = wxRegion( gdk_event->region );
291 win->GtkSendPaintEvents();
292 }
293 // Let parent window draw window-less widgets
294 return FALSE;
295 }
296 }
297
298 #ifndef __WXUNIVERSAL__
299 //-----------------------------------------------------------------------------
300 // "expose_event" from m_wxwindow->parent, for drawing border
301 //-----------------------------------------------------------------------------
302
303 extern "C" {
304 static gboolean
305 expose_event_border(GtkWidget* widget, GdkEventExpose* gdk_event, wxWindow* win)
306 {
307 if (gdk_event->window != widget->window)
308 return false;
309
310 const GtkAllocation& alloc = win->m_wxwindow->allocation;
311 const int x = alloc.x;
312 const int y = alloc.y;
313 const int w = alloc.width;
314 const int h = alloc.height;
315
316 if (w <= 0 || h <= 0)
317 return false;
318
319 if (win->HasFlag(wxBORDER_SIMPLE))
320 {
321 gdk_draw_rectangle(gdk_event->window,
322 widget->style->black_gc, false, x, y, w - 1, h - 1);
323 }
324 else
325 {
326 GtkShadowType shadow = GTK_SHADOW_IN;
327 if (win->HasFlag(wxBORDER_RAISED))
328 shadow = GTK_SHADOW_OUT;
329
330 // Style detail to use
331 const char* detail;
332 if (win->m_widget == win->m_wxwindow)
333 // for non-scrollable wxWindows
334 detail = "entry";
335 else
336 // for scrollable ones
337 detail = "viewport";
338
339 gtk_paint_shadow(
340 win->m_wxwindow->style, gdk_event->window, GTK_STATE_NORMAL,
341 shadow, NULL, wxGTKPrivate::GetEntryWidget(), detail, x, y, w, h);
342 }
343 return false;
344 }
345 }
346
347 //-----------------------------------------------------------------------------
348 // "parent_set" from m_wxwindow
349 //-----------------------------------------------------------------------------
350
351 extern "C" {
352 static void
353 parent_set(GtkWidget* widget, GtkObject* old_parent, wxWindow* win)
354 {
355 if (old_parent)
356 {
357 g_signal_handlers_disconnect_by_func(
358 old_parent, (void*)expose_event_border, win);
359 }
360 if (widget->parent)
361 {
362 g_signal_connect_after(widget->parent, "expose_event",
363 G_CALLBACK(expose_event_border), win);
364 }
365 }
366 }
367 #endif // !__WXUNIVERSAL__
368
369 //-----------------------------------------------------------------------------
370 // "key_press_event" from any window
371 //-----------------------------------------------------------------------------
372
373 // These are used when transforming Ctrl-alpha to ascii values 1-26
374 inline bool wxIsLowerChar(int code)
375 {
376 return (code >= 'a' && code <= 'z' );
377 }
378
379 inline bool wxIsUpperChar(int code)
380 {
381 return (code >= 'A' && code <= 'Z' );
382 }
383
384
385 // set WXTRACE to this to see the key event codes on the console
386 #define TRACE_KEYS wxT("keyevent")
387
388 // translates an X key symbol to WXK_XXX value
389 //
390 // if isChar is true it means that the value returned will be used for EVT_CHAR
391 // event and then we choose the logical WXK_XXX, i.e. '/' for GDK_KP_Divide,
392 // for example, while if it is false it means that the value is going to be
393 // used for KEY_DOWN/UP events and then we translate GDK_KP_Divide to
394 // WXK_NUMPAD_DIVIDE
395 static long wxTranslateKeySymToWXKey(KeySym keysym, bool isChar)
396 {
397 long key_code;
398
399 switch ( keysym )
400 {
401 // Shift, Control and Alt don't generate the CHAR events at all
402 case GDK_Shift_L:
403 case GDK_Shift_R:
404 key_code = isChar ? 0 : WXK_SHIFT;
405 break;
406 case GDK_Control_L:
407 case GDK_Control_R:
408 key_code = isChar ? 0 : WXK_CONTROL;
409 break;
410 case GDK_Meta_L:
411 case GDK_Meta_R:
412 case GDK_Alt_L:
413 case GDK_Alt_R:
414 case GDK_Super_L:
415 case GDK_Super_R:
416 key_code = isChar ? 0 : WXK_ALT;
417 break;
418
419 // neither do the toggle modifies
420 case GDK_Scroll_Lock:
421 key_code = isChar ? 0 : WXK_SCROLL;
422 break;
423
424 case GDK_Caps_Lock:
425 key_code = isChar ? 0 : WXK_CAPITAL;
426 break;
427
428 case GDK_Num_Lock:
429 key_code = isChar ? 0 : WXK_NUMLOCK;
430 break;
431
432
433 // various other special keys
434 case GDK_Menu:
435 key_code = WXK_MENU;
436 break;
437
438 case GDK_Help:
439 key_code = WXK_HELP;
440 break;
441
442 case GDK_BackSpace:
443 key_code = WXK_BACK;
444 break;
445
446 case GDK_ISO_Left_Tab:
447 case GDK_Tab:
448 key_code = WXK_TAB;
449 break;
450
451 case GDK_Linefeed:
452 case GDK_Return:
453 key_code = WXK_RETURN;
454 break;
455
456 case GDK_Clear:
457 key_code = WXK_CLEAR;
458 break;
459
460 case GDK_Pause:
461 key_code = WXK_PAUSE;
462 break;
463
464 case GDK_Select:
465 key_code = WXK_SELECT;
466 break;
467
468 case GDK_Print:
469 key_code = WXK_PRINT;
470 break;
471
472 case GDK_Execute:
473 key_code = WXK_EXECUTE;
474 break;
475
476 case GDK_Escape:
477 key_code = WXK_ESCAPE;
478 break;
479
480 // cursor and other extended keyboard keys
481 case GDK_Delete:
482 key_code = WXK_DELETE;
483 break;
484
485 case GDK_Home:
486 key_code = WXK_HOME;
487 break;
488
489 case GDK_Left:
490 key_code = WXK_LEFT;
491 break;
492
493 case GDK_Up:
494 key_code = WXK_UP;
495 break;
496
497 case GDK_Right:
498 key_code = WXK_RIGHT;
499 break;
500
501 case GDK_Down:
502 key_code = WXK_DOWN;
503 break;
504
505 case GDK_Prior: // == GDK_Page_Up
506 key_code = WXK_PAGEUP;
507 break;
508
509 case GDK_Next: // == GDK_Page_Down
510 key_code = WXK_PAGEDOWN;
511 break;
512
513 case GDK_End:
514 key_code = WXK_END;
515 break;
516
517 case GDK_Begin:
518 key_code = WXK_HOME;
519 break;
520
521 case GDK_Insert:
522 key_code = WXK_INSERT;
523 break;
524
525
526 // numpad keys
527 case GDK_KP_0:
528 case GDK_KP_1:
529 case GDK_KP_2:
530 case GDK_KP_3:
531 case GDK_KP_4:
532 case GDK_KP_5:
533 case GDK_KP_6:
534 case GDK_KP_7:
535 case GDK_KP_8:
536 case GDK_KP_9:
537 key_code = (isChar ? '0' : int(WXK_NUMPAD0)) + keysym - GDK_KP_0;
538 break;
539
540 case GDK_KP_Space:
541 key_code = isChar ? ' ' : int(WXK_NUMPAD_SPACE);
542 break;
543
544 case GDK_KP_Tab:
545 key_code = isChar ? WXK_TAB : WXK_NUMPAD_TAB;
546 break;
547
548 case GDK_KP_Enter:
549 key_code = isChar ? WXK_RETURN : WXK_NUMPAD_ENTER;
550 break;
551
552 case GDK_KP_F1:
553 key_code = isChar ? WXK_F1 : WXK_NUMPAD_F1;
554 break;
555
556 case GDK_KP_F2:
557 key_code = isChar ? WXK_F2 : WXK_NUMPAD_F2;
558 break;
559
560 case GDK_KP_F3:
561 key_code = isChar ? WXK_F3 : WXK_NUMPAD_F3;
562 break;
563
564 case GDK_KP_F4:
565 key_code = isChar ? WXK_F4 : WXK_NUMPAD_F4;
566 break;
567
568 case GDK_KP_Home:
569 key_code = isChar ? WXK_HOME : WXK_NUMPAD_HOME;
570 break;
571
572 case GDK_KP_Left:
573 key_code = isChar ? WXK_LEFT : WXK_NUMPAD_LEFT;
574 break;
575
576 case GDK_KP_Up:
577 key_code = isChar ? WXK_UP : WXK_NUMPAD_UP;
578 break;
579
580 case GDK_KP_Right:
581 key_code = isChar ? WXK_RIGHT : WXK_NUMPAD_RIGHT;
582 break;
583
584 case GDK_KP_Down:
585 key_code = isChar ? WXK_DOWN : WXK_NUMPAD_DOWN;
586 break;
587
588 case GDK_KP_Prior: // == GDK_KP_Page_Up
589 key_code = isChar ? WXK_PAGEUP : WXK_NUMPAD_PAGEUP;
590 break;
591
592 case GDK_KP_Next: // == GDK_KP_Page_Down
593 key_code = isChar ? WXK_PAGEDOWN : WXK_NUMPAD_PAGEDOWN;
594 break;
595
596 case GDK_KP_End:
597 key_code = isChar ? WXK_END : WXK_NUMPAD_END;
598 break;
599
600 case GDK_KP_Begin:
601 key_code = isChar ? WXK_HOME : WXK_NUMPAD_BEGIN;
602 break;
603
604 case GDK_KP_Insert:
605 key_code = isChar ? WXK_INSERT : WXK_NUMPAD_INSERT;
606 break;
607
608 case GDK_KP_Delete:
609 key_code = isChar ? WXK_DELETE : WXK_NUMPAD_DELETE;
610 break;
611
612 case GDK_KP_Equal:
613 key_code = isChar ? '=' : int(WXK_NUMPAD_EQUAL);
614 break;
615
616 case GDK_KP_Multiply:
617 key_code = isChar ? '*' : int(WXK_NUMPAD_MULTIPLY);
618 break;
619
620 case GDK_KP_Add:
621 key_code = isChar ? '+' : int(WXK_NUMPAD_ADD);
622 break;
623
624 case GDK_KP_Separator:
625 // FIXME: what is this?
626 key_code = isChar ? '.' : int(WXK_NUMPAD_SEPARATOR);
627 break;
628
629 case GDK_KP_Subtract:
630 key_code = isChar ? '-' : int(WXK_NUMPAD_SUBTRACT);
631 break;
632
633 case GDK_KP_Decimal:
634 key_code = isChar ? '.' : int(WXK_NUMPAD_DECIMAL);
635 break;
636
637 case GDK_KP_Divide:
638 key_code = isChar ? '/' : int(WXK_NUMPAD_DIVIDE);
639 break;
640
641
642 // function keys
643 case GDK_F1:
644 case GDK_F2:
645 case GDK_F3:
646 case GDK_F4:
647 case GDK_F5:
648 case GDK_F6:
649 case GDK_F7:
650 case GDK_F8:
651 case GDK_F9:
652 case GDK_F10:
653 case GDK_F11:
654 case GDK_F12:
655 key_code = WXK_F1 + keysym - GDK_F1;
656 break;
657
658 default:
659 key_code = 0;
660 }
661
662 return key_code;
663 }
664
665 static inline bool wxIsAsciiKeysym(KeySym ks)
666 {
667 return ks < 256;
668 }
669
670 static void wxFillOtherKeyEventFields(wxKeyEvent& event,
671 wxWindowGTK *win,
672 GdkEventKey *gdk_event)
673 {
674 int x = 0;
675 int y = 0;
676 GdkModifierType state;
677 if (gdk_event->window)
678 gdk_window_get_pointer(gdk_event->window, &x, &y, &state);
679
680 event.SetTimestamp( gdk_event->time );
681 event.SetId(win->GetId());
682 event.m_shiftDown = (gdk_event->state & GDK_SHIFT_MASK) != 0;
683 event.m_controlDown = (gdk_event->state & GDK_CONTROL_MASK) != 0;
684 event.m_altDown = (gdk_event->state & GDK_MOD1_MASK) != 0;
685 event.m_metaDown = (gdk_event->state & GDK_META_MASK) != 0;
686 event.m_rawCode = (wxUint32) gdk_event->keyval;
687 event.m_rawFlags = 0;
688 #if wxUSE_UNICODE
689 event.m_uniChar = gdk_keyval_to_unicode(gdk_event->keyval);
690 #endif
691 wxGetMousePosition( &x, &y );
692 win->ScreenToClient( &x, &y );
693 event.m_x = x;
694 event.m_y = y;
695 event.SetEventObject( win );
696 }
697
698
699 static bool
700 wxTranslateGTKKeyEventToWx(wxKeyEvent& event,
701 wxWindowGTK *win,
702 GdkEventKey *gdk_event)
703 {
704 // VZ: it seems that GDK_KEY_RELEASE event doesn't set event->string
705 // but only event->keyval which is quite useless to us, so remember
706 // the last character from GDK_KEY_PRESS and reuse it as last resort
707 //
708 // NB: should be MT-safe as we're always called from the main thread only
709 static struct
710 {
711 KeySym keysym;
712 long keycode;
713 } s_lastKeyPress = { 0, 0 };
714
715 KeySym keysym = gdk_event->keyval;
716
717 wxLogTrace(TRACE_KEYS, wxT("Key %s event: keysym = %ld"),
718 event.GetEventType() == wxEVT_KEY_UP ? wxT("release")
719 : wxT("press"),
720 keysym);
721
722 long key_code = wxTranslateKeySymToWXKey(keysym, false /* !isChar */);
723
724 if ( !key_code )
725 {
726 // do we have the translation or is it a plain ASCII character?
727 if ( (gdk_event->length == 1) || wxIsAsciiKeysym(keysym) )
728 {
729 // we should use keysym if it is ASCII as X does some translations
730 // like "I pressed while Control is down" => "Ctrl-I" == "TAB"
731 // which we don't want here (but which we do use for OnChar())
732 if ( !wxIsAsciiKeysym(keysym) )
733 {
734 keysym = (KeySym)gdk_event->string[0];
735 }
736
737 // we want to always get the same key code when the same key is
738 // pressed regardless of the state of the modifiers, i.e. on a
739 // standard US keyboard pressing '5' or '%' ('5' key with
740 // Shift) should result in the same key code in OnKeyDown():
741 // '5' (although OnChar() will get either '5' or '%').
742 //
743 // to do it we first translate keysym to keycode (== scan code)
744 // and then back but always using the lower register
745 Display *dpy = (Display *)wxGetDisplay();
746 KeyCode keycode = XKeysymToKeycode(dpy, keysym);
747
748 wxLogTrace(TRACE_KEYS, wxT("\t-> keycode %d"), keycode);
749
750 KeySym keysymNormalized = XKeycodeToKeysym(dpy, keycode, 0);
751
752 // use the normalized, i.e. lower register, keysym if we've
753 // got one
754 key_code = keysymNormalized ? keysymNormalized : keysym;
755
756 // as explained above, we want to have lower register key codes
757 // normally but for the letter keys we want to have the upper ones
758 //
759 // NB: don't use XConvertCase() here, we want to do it for letters
760 // only
761 key_code = toupper(key_code);
762 }
763 else // non ASCII key, what to do?
764 {
765 // by default, ignore it
766 key_code = 0;
767
768 // but if we have cached information from the last KEY_PRESS
769 if ( gdk_event->type == GDK_KEY_RELEASE )
770 {
771 // then reuse it
772 if ( keysym == s_lastKeyPress.keysym )
773 {
774 key_code = s_lastKeyPress.keycode;
775 }
776 }
777 }
778
779 if ( gdk_event->type == GDK_KEY_PRESS )
780 {
781 // remember it to be reused for KEY_UP event later
782 s_lastKeyPress.keysym = keysym;
783 s_lastKeyPress.keycode = key_code;
784 }
785 }
786
787 wxLogTrace(TRACE_KEYS, wxT("\t-> wxKeyCode %ld"), key_code);
788
789 // sending unknown key events doesn't really make sense
790 if ( !key_code )
791 return false;
792
793 // now fill all the other fields
794 wxFillOtherKeyEventFields(event, win, gdk_event);
795
796 event.m_keyCode = key_code;
797 #if wxUSE_UNICODE
798 if ( gdk_event->type == GDK_KEY_PRESS || gdk_event->type == GDK_KEY_RELEASE )
799 {
800 event.m_uniChar = key_code;
801 }
802 #endif
803
804 return true;
805 }
806
807
808 struct wxGtkIMData
809 {
810 GtkIMContext *context;
811 GdkEventKey *lastKeyEvent;
812
813 wxGtkIMData()
814 {
815 context = gtk_im_multicontext_new();
816 lastKeyEvent = NULL;
817 }
818 ~wxGtkIMData()
819 {
820 g_object_unref (context);
821 }
822 };
823
824 extern "C" {
825 static gboolean
826 gtk_window_key_press_callback( GtkWidget *WXUNUSED(widget),
827 GdkEventKey *gdk_event,
828 wxWindow *win )
829 {
830 if (!win->m_hasVMT)
831 return FALSE;
832 if (g_blockEventsOnDrag)
833 return FALSE;
834
835 wxKeyEvent event( wxEVT_KEY_DOWN );
836 bool ret = false;
837 bool return_after_IM = false;
838
839 if( wxTranslateGTKKeyEventToWx(event, win, gdk_event) )
840 {
841 // Emit KEY_DOWN event
842 ret = win->HandleWindowEvent( event );
843 }
844 else
845 {
846 // Return after IM processing as we cannot do
847 // anything with it anyhow.
848 return_after_IM = true;
849 }
850
851 if ((!ret) && (win->m_imData != NULL))
852 {
853 // We should let GTK+ IM filter key event first. According to GTK+ 2.0 API
854 // docs, if IM filter returns true, no further processing should be done.
855 // we should send the key_down event anyway.
856 bool intercepted_by_IM = gtk_im_context_filter_keypress(win->m_imData->context, gdk_event);
857 win->m_imData->lastKeyEvent = NULL;
858 if (intercepted_by_IM)
859 {
860 wxLogTrace(TRACE_KEYS, wxT("Key event intercepted by IM"));
861 return TRUE;
862 }
863 }
864
865 if (return_after_IM)
866 return FALSE;
867
868 #if wxUSE_ACCEL
869 if (!ret)
870 {
871 wxWindowGTK *ancestor = win;
872 while (ancestor)
873 {
874 int command = ancestor->GetAcceleratorTable()->GetCommand( event );
875 if (command != -1)
876 {
877 wxCommandEvent menu_event( wxEVT_COMMAND_MENU_SELECTED, command );
878 ret = ancestor->HandleWindowEvent( menu_event );
879
880 if ( !ret )
881 {
882 // if the accelerator wasn't handled as menu event, try
883 // it as button click (for compatibility with other
884 // platforms):
885 wxCommandEvent button_event( wxEVT_COMMAND_BUTTON_CLICKED, command );
886 ret = ancestor->HandleWindowEvent( button_event );
887 }
888
889 break;
890 }
891 if (ancestor->IsTopLevel())
892 break;
893 ancestor = ancestor->GetParent();
894 }
895 }
896 #endif // wxUSE_ACCEL
897
898 // Only send wxEVT_CHAR event if not processed yet. Thus, ALT-x
899 // will only be sent if it is not in an accelerator table.
900 if (!ret)
901 {
902 long key_code;
903 KeySym keysym = gdk_event->keyval;
904 // Find key code for EVT_CHAR and EVT_CHAR_HOOK events
905 key_code = wxTranslateKeySymToWXKey(keysym, true /* isChar */);
906 if ( !key_code )
907 {
908 if ( wxIsAsciiKeysym(keysym) )
909 {
910 // ASCII key
911 key_code = (unsigned char)keysym;
912 }
913 // gdk_event->string is actually deprecated
914 else if ( gdk_event->length == 1 )
915 {
916 key_code = (unsigned char)gdk_event->string[0];
917 }
918 }
919
920 if ( key_code )
921 {
922 wxLogTrace(TRACE_KEYS, wxT("Char event: %ld"), key_code);
923
924 event.m_keyCode = key_code;
925
926 // To conform to the docs we need to translate Ctrl-alpha
927 // characters to values in the range 1-26.
928 if ( event.ControlDown() &&
929 ( wxIsLowerChar(key_code) || wxIsUpperChar(key_code) ))
930 {
931 if ( wxIsLowerChar(key_code) )
932 event.m_keyCode = key_code - 'a' + 1;
933 if ( wxIsUpperChar(key_code) )
934 event.m_keyCode = key_code - 'A' + 1;
935 #if wxUSE_UNICODE
936 event.m_uniChar = event.m_keyCode;
937 #endif
938 }
939
940 // Implement OnCharHook by checking ancestor top level windows
941 wxWindow *parent = win;
942 while (parent && !parent->IsTopLevel())
943 parent = parent->GetParent();
944 if (parent)
945 {
946 event.SetEventType( wxEVT_CHAR_HOOK );
947 ret = parent->HandleWindowEvent( event );
948 }
949
950 if (!ret)
951 {
952 event.SetEventType(wxEVT_CHAR);
953 ret = win->HandleWindowEvent( event );
954 }
955 }
956 }
957
958 return ret;
959 }
960 }
961
962 extern "C" {
963 static void
964 gtk_wxwindow_commit_cb (GtkIMContext * WXUNUSED(context),
965 const gchar *str,
966 wxWindow *window)
967 {
968 wxKeyEvent event( wxEVT_KEY_DOWN );
969
970 // take modifiers, cursor position, timestamp etc. from the last
971 // key_press_event that was fed into Input Method:
972 if (window->m_imData->lastKeyEvent)
973 {
974 wxFillOtherKeyEventFields(event,
975 window, window->m_imData->lastKeyEvent);
976 }
977 else
978 {
979 event.SetEventObject( window );
980 }
981
982 const wxString data(wxGTK_CONV_BACK_SYS(str));
983 if( data.empty() )
984 return;
985
986 bool ret = false;
987
988 // Implement OnCharHook by checking ancestor top level windows
989 wxWindow *parent = window;
990 while (parent && !parent->IsTopLevel())
991 parent = parent->GetParent();
992
993 for( wxString::const_iterator pstr = data.begin(); pstr != data.end(); ++pstr )
994 {
995 #if wxUSE_UNICODE
996 event.m_uniChar = *pstr;
997 // Backward compatible for ISO-8859-1
998 event.m_keyCode = *pstr < 256 ? event.m_uniChar : 0;
999 wxLogTrace(TRACE_KEYS, wxT("IM sent character '%c'"), event.m_uniChar);
1000 #else
1001 event.m_keyCode = (char)*pstr;
1002 #endif // wxUSE_UNICODE
1003
1004 // To conform to the docs we need to translate Ctrl-alpha
1005 // characters to values in the range 1-26.
1006 if ( event.ControlDown() &&
1007 ( wxIsLowerChar(*pstr) || wxIsUpperChar(*pstr) ))
1008 {
1009 if ( wxIsLowerChar(*pstr) )
1010 event.m_keyCode = *pstr - 'a' + 1;
1011 if ( wxIsUpperChar(*pstr) )
1012 event.m_keyCode = *pstr - 'A' + 1;
1013
1014 event.m_keyCode = *pstr - 'a' + 1;
1015 #if wxUSE_UNICODE
1016 event.m_uniChar = event.m_keyCode;
1017 #endif
1018 }
1019
1020 if (parent)
1021 {
1022 event.SetEventType( wxEVT_CHAR_HOOK );
1023 ret = parent->HandleWindowEvent( event );
1024 }
1025
1026 if (!ret)
1027 {
1028 event.SetEventType(wxEVT_CHAR);
1029 ret = window->HandleWindowEvent( event );
1030 }
1031 }
1032 }
1033 }
1034
1035
1036 //-----------------------------------------------------------------------------
1037 // "key_release_event" from any window
1038 //-----------------------------------------------------------------------------
1039
1040 extern "C" {
1041 static gboolean
1042 gtk_window_key_release_callback( GtkWidget * WXUNUSED(widget),
1043 GdkEventKey *gdk_event,
1044 wxWindowGTK *win )
1045 {
1046 if (!win->m_hasVMT)
1047 return FALSE;
1048
1049 if (g_blockEventsOnDrag)
1050 return FALSE;
1051
1052 wxKeyEvent event( wxEVT_KEY_UP );
1053 if ( !wxTranslateGTKKeyEventToWx(event, win, gdk_event) )
1054 {
1055 // unknown key pressed, ignore (the event would be useless anyhow)
1056 return FALSE;
1057 }
1058
1059 return win->GTKProcessEvent(event);
1060 }
1061 }
1062
1063 // ============================================================================
1064 // the mouse events
1065 // ============================================================================
1066
1067 // ----------------------------------------------------------------------------
1068 // mouse event processing helpers
1069 // ----------------------------------------------------------------------------
1070
1071 // init wxMouseEvent with the info from GdkEventXXX struct
1072 template<typename T> void InitMouseEvent(wxWindowGTK *win,
1073 wxMouseEvent& event,
1074 T *gdk_event)
1075 {
1076 event.SetTimestamp( gdk_event->time );
1077 event.m_shiftDown = (gdk_event->state & GDK_SHIFT_MASK) != 0;
1078 event.m_controlDown = (gdk_event->state & GDK_CONTROL_MASK) != 0;
1079 event.m_altDown = (gdk_event->state & GDK_MOD1_MASK) != 0;
1080 event.m_metaDown = (gdk_event->state & GDK_META_MASK) != 0;
1081 event.m_leftDown = (gdk_event->state & GDK_BUTTON1_MASK) != 0;
1082 event.m_middleDown = (gdk_event->state & GDK_BUTTON2_MASK) != 0;
1083 event.m_rightDown = (gdk_event->state & GDK_BUTTON3_MASK) != 0;
1084 event.m_aux1Down = (gdk_event->state & GDK_BUTTON4_MASK) != 0;
1085 event.m_aux2Down = (gdk_event->state & GDK_BUTTON5_MASK) != 0;
1086
1087 wxPoint pt = win->GetClientAreaOrigin();
1088 event.m_x = (wxCoord)gdk_event->x - pt.x;
1089 event.m_y = (wxCoord)gdk_event->y - pt.y;
1090
1091 if ((win->m_wxwindow) && (win->GetLayoutDirection() == wxLayout_RightToLeft))
1092 {
1093 // origin in the upper right corner
1094 int window_width = win->m_wxwindow->allocation.width;
1095 event.m_x = window_width - event.m_x;
1096 }
1097
1098 event.SetEventObject( win );
1099 event.SetId( win->GetId() );
1100 event.SetTimestamp( gdk_event->time );
1101 }
1102
1103 static void AdjustEventButtonState(wxMouseEvent& event)
1104 {
1105 // GDK reports the old state of the button for a button press event, but
1106 // for compatibility with MSW and common sense we want m_leftDown be TRUE
1107 // for a LEFT_DOWN event, not FALSE, so we will invert
1108 // left/right/middleDown for the corresponding click events
1109
1110 if ((event.GetEventType() == wxEVT_LEFT_DOWN) ||
1111 (event.GetEventType() == wxEVT_LEFT_DCLICK) ||
1112 (event.GetEventType() == wxEVT_LEFT_UP))
1113 {
1114 event.m_leftDown = !event.m_leftDown;
1115 return;
1116 }
1117
1118 if ((event.GetEventType() == wxEVT_MIDDLE_DOWN) ||
1119 (event.GetEventType() == wxEVT_MIDDLE_DCLICK) ||
1120 (event.GetEventType() == wxEVT_MIDDLE_UP))
1121 {
1122 event.m_middleDown = !event.m_middleDown;
1123 return;
1124 }
1125
1126 if ((event.GetEventType() == wxEVT_RIGHT_DOWN) ||
1127 (event.GetEventType() == wxEVT_RIGHT_DCLICK) ||
1128 (event.GetEventType() == wxEVT_RIGHT_UP))
1129 {
1130 event.m_rightDown = !event.m_rightDown;
1131 return;
1132 }
1133 }
1134
1135 // find the window to send the mouse event too
1136 static
1137 wxWindowGTK *FindWindowForMouseEvent(wxWindowGTK *win, wxCoord& x, wxCoord& y)
1138 {
1139 wxCoord xx = x;
1140 wxCoord yy = y;
1141
1142 if (win->m_wxwindow)
1143 {
1144 wxPizza* pizza = WX_PIZZA(win->m_wxwindow);
1145 xx += pizza->m_scroll_x;
1146 yy += pizza->m_scroll_y;
1147 }
1148
1149 wxWindowList::compatibility_iterator node = win->GetChildren().GetFirst();
1150 while (node)
1151 {
1152 wxWindowGTK *child = node->GetData();
1153
1154 node = node->GetNext();
1155 if (!child->IsShown())
1156 continue;
1157
1158 if (child->GTKIsTransparentForMouse())
1159 {
1160 // wxStaticBox is transparent in the box itself
1161 int xx1 = child->m_x;
1162 int yy1 = child->m_y;
1163 int xx2 = child->m_x + child->m_width;
1164 int yy2 = child->m_y + child->m_height;
1165
1166 // left
1167 if (((xx >= xx1) && (xx <= xx1+10) && (yy >= yy1) && (yy <= yy2)) ||
1168 // right
1169 ((xx >= xx2-10) && (xx <= xx2) && (yy >= yy1) && (yy <= yy2)) ||
1170 // top
1171 ((xx >= xx1) && (xx <= xx2) && (yy >= yy1) && (yy <= yy1+10)) ||
1172 // bottom
1173 ((xx >= xx1) && (xx <= xx2) && (yy >= yy2-1) && (yy <= yy2)))
1174 {
1175 win = child;
1176 x -= child->m_x;
1177 y -= child->m_y;
1178 break;
1179 }
1180
1181 }
1182 else
1183 {
1184 if ((child->m_wxwindow == NULL) &&
1185 (child->m_x <= xx) &&
1186 (child->m_y <= yy) &&
1187 (child->m_x+child->m_width >= xx) &&
1188 (child->m_y+child->m_height >= yy))
1189 {
1190 win = child;
1191 x -= child->m_x;
1192 y -= child->m_y;
1193 break;
1194 }
1195 }
1196 }
1197
1198 return win;
1199 }
1200
1201 // ----------------------------------------------------------------------------
1202 // common event handlers helpers
1203 // ----------------------------------------------------------------------------
1204
1205 bool wxWindowGTK::GTKProcessEvent(wxEvent& event) const
1206 {
1207 // nothing special at this level
1208 return HandleWindowEvent(event);
1209 }
1210
1211 bool wxWindowGTK::GTKShouldIgnoreEvent() const
1212 {
1213 return !m_hasVMT || g_blockEventsOnDrag;
1214 }
1215
1216 int wxWindowGTK::GTKCallbackCommonPrologue(GdkEventAny *event) const
1217 {
1218 if (!m_hasVMT)
1219 return FALSE;
1220 if (g_blockEventsOnDrag)
1221 return TRUE;
1222 if (g_blockEventsOnScroll)
1223 return TRUE;
1224
1225 if (!GTKIsOwnWindow(event->window))
1226 return FALSE;
1227
1228 return -1;
1229 }
1230
1231 // overloads for all GDK event types we use here: we need to have this as
1232 // GdkEventXXX can't be implicitly cast to GdkEventAny even if it, in fact,
1233 // derives from it in the sense that the structs have the same layout
1234 #define wxDEFINE_COMMON_PROLOGUE_OVERLOAD(T) \
1235 static int wxGtkCallbackCommonPrologue(T *event, wxWindowGTK *win) \
1236 { \
1237 return win->GTKCallbackCommonPrologue((GdkEventAny *)event); \
1238 }
1239
1240 wxDEFINE_COMMON_PROLOGUE_OVERLOAD(GdkEventButton)
1241 wxDEFINE_COMMON_PROLOGUE_OVERLOAD(GdkEventMotion)
1242 wxDEFINE_COMMON_PROLOGUE_OVERLOAD(GdkEventCrossing)
1243
1244 #undef wxDEFINE_COMMON_PROLOGUE_OVERLOAD
1245
1246 #define wxCOMMON_CALLBACK_PROLOGUE(event, win) \
1247 const int rc = wxGtkCallbackCommonPrologue(event, win); \
1248 if ( rc != -1 ) \
1249 return rc
1250
1251 // all event handlers must have C linkage as they're called from GTK+ C code
1252 extern "C"
1253 {
1254
1255 //-----------------------------------------------------------------------------
1256 // "button_press_event"
1257 //-----------------------------------------------------------------------------
1258
1259 static gboolean
1260 gtk_window_button_press_callback( GtkWidget *widget,
1261 GdkEventButton *gdk_event,
1262 wxWindowGTK *win )
1263 {
1264 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1265
1266 g_lastButtonNumber = gdk_event->button;
1267
1268 // GDK sends surplus button down events
1269 // before a double click event. We
1270 // need to filter these out.
1271 if ((gdk_event->type == GDK_BUTTON_PRESS) && (win->m_wxwindow))
1272 {
1273 GdkEvent *peek_event = gdk_event_peek();
1274 if (peek_event)
1275 {
1276 if ((peek_event->type == GDK_2BUTTON_PRESS) ||
1277 (peek_event->type == GDK_3BUTTON_PRESS))
1278 {
1279 gdk_event_free( peek_event );
1280 return TRUE;
1281 }
1282 else
1283 {
1284 gdk_event_free( peek_event );
1285 }
1286 }
1287 }
1288
1289 wxEventType event_type = wxEVT_NULL;
1290
1291 if ( gdk_event->type == GDK_2BUTTON_PRESS &&
1292 gdk_event->button >= 1 && gdk_event->button <= 3 )
1293 {
1294 // Reset GDK internal timestamp variables in order to disable GDK
1295 // triple click events. GDK will then next time believe no button has
1296 // been clicked just before, and send a normal button click event.
1297 GdkDisplay* display = gtk_widget_get_display (widget);
1298 display->button_click_time[1] = 0;
1299 display->button_click_time[0] = 0;
1300 }
1301
1302 if (gdk_event->button == 1)
1303 {
1304 // note that GDK generates triple click events which are not supported
1305 // by wxWidgets but still have to be passed to the app as otherwise
1306 // clicks would simply go missing
1307 switch (gdk_event->type)
1308 {
1309 // we shouldn't get triple clicks at all for GTK2 because we
1310 // suppress them artificially using the code above but we still
1311 // should map them to something for GTK1 and not just ignore them
1312 // as this would lose clicks
1313 case GDK_3BUTTON_PRESS: // we could also map this to DCLICK...
1314 case GDK_BUTTON_PRESS:
1315 event_type = wxEVT_LEFT_DOWN;
1316 break;
1317
1318 case GDK_2BUTTON_PRESS:
1319 event_type = wxEVT_LEFT_DCLICK;
1320 break;
1321
1322 default:
1323 // just to silence gcc warnings
1324 ;
1325 }
1326 }
1327 else if (gdk_event->button == 2)
1328 {
1329 switch (gdk_event->type)
1330 {
1331 case GDK_3BUTTON_PRESS:
1332 case GDK_BUTTON_PRESS:
1333 event_type = wxEVT_MIDDLE_DOWN;
1334 break;
1335
1336 case GDK_2BUTTON_PRESS:
1337 event_type = wxEVT_MIDDLE_DCLICK;
1338 break;
1339
1340 default:
1341 ;
1342 }
1343 }
1344 else if (gdk_event->button == 3)
1345 {
1346 switch (gdk_event->type)
1347 {
1348 case GDK_3BUTTON_PRESS:
1349 case GDK_BUTTON_PRESS:
1350 event_type = wxEVT_RIGHT_DOWN;
1351 break;
1352
1353 case GDK_2BUTTON_PRESS:
1354 event_type = wxEVT_RIGHT_DCLICK;
1355 break;
1356
1357 default:
1358 ;
1359 }
1360 }
1361
1362 if ( event_type == wxEVT_NULL )
1363 {
1364 // unknown mouse button or click type
1365 return FALSE;
1366 }
1367
1368 g_lastMouseEvent = (GdkEvent*) gdk_event;
1369
1370 wxMouseEvent event( event_type );
1371 InitMouseEvent( win, event, gdk_event );
1372
1373 AdjustEventButtonState(event);
1374
1375 // find the correct window to send the event to: it may be a different one
1376 // from the one which got it at GTK+ level because some controls don't have
1377 // their own X window and thus cannot get any events.
1378 if ( !g_captureWindow )
1379 win = FindWindowForMouseEvent(win, event.m_x, event.m_y);
1380
1381 // reset the event object and id in case win changed.
1382 event.SetEventObject( win );
1383 event.SetId( win->GetId() );
1384
1385 bool ret = win->GTKProcessEvent( event );
1386 g_lastMouseEvent = NULL;
1387 if ( ret )
1388 return TRUE;
1389
1390 if ((event_type == wxEVT_LEFT_DOWN) && !win->IsOfStandardClass() &&
1391 (gs_currentFocus != win) /* && win->IsFocusable() */)
1392 {
1393 win->SetFocus();
1394 }
1395
1396 if (event_type == wxEVT_RIGHT_DOWN)
1397 {
1398 // generate a "context menu" event: this is similar to right mouse
1399 // click under many GUIs except that it is generated differently
1400 // (right up under MSW, ctrl-click under Mac, right down here) and
1401 //
1402 // (a) it's a command event and so is propagated to the parent
1403 // (b) under some ports it can be generated from kbd too
1404 // (c) it uses screen coords (because of (a))
1405 wxContextMenuEvent evtCtx(
1406 wxEVT_CONTEXT_MENU,
1407 win->GetId(),
1408 win->ClientToScreen(event.GetPosition()));
1409 evtCtx.SetEventObject(win);
1410 return win->GTKProcessEvent(evtCtx);
1411 }
1412
1413 return FALSE;
1414 }
1415
1416 //-----------------------------------------------------------------------------
1417 // "button_release_event"
1418 //-----------------------------------------------------------------------------
1419
1420 static gboolean
1421 gtk_window_button_release_callback( GtkWidget *WXUNUSED(widget),
1422 GdkEventButton *gdk_event,
1423 wxWindowGTK *win )
1424 {
1425 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1426
1427 g_lastButtonNumber = 0;
1428
1429 wxEventType event_type = wxEVT_NULL;
1430
1431 switch (gdk_event->button)
1432 {
1433 case 1:
1434 event_type = wxEVT_LEFT_UP;
1435 break;
1436
1437 case 2:
1438 event_type = wxEVT_MIDDLE_UP;
1439 break;
1440
1441 case 3:
1442 event_type = wxEVT_RIGHT_UP;
1443 break;
1444
1445 default:
1446 // unknown button, don't process
1447 return FALSE;
1448 }
1449
1450 g_lastMouseEvent = (GdkEvent*) gdk_event;
1451
1452 wxMouseEvent event( event_type );
1453 InitMouseEvent( win, event, gdk_event );
1454
1455 AdjustEventButtonState(event);
1456
1457 if ( !g_captureWindow )
1458 win = FindWindowForMouseEvent(win, event.m_x, event.m_y);
1459
1460 // reset the event object and id in case win changed.
1461 event.SetEventObject( win );
1462 event.SetId( win->GetId() );
1463
1464 bool ret = win->GTKProcessEvent(event);
1465
1466 g_lastMouseEvent = NULL;
1467
1468 return ret;
1469 }
1470
1471 //-----------------------------------------------------------------------------
1472 // "motion_notify_event"
1473 //-----------------------------------------------------------------------------
1474
1475 static gboolean
1476 gtk_window_motion_notify_callback( GtkWidget * WXUNUSED(widget),
1477 GdkEventMotion *gdk_event,
1478 wxWindowGTK *win )
1479 {
1480 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1481
1482 if (gdk_event->is_hint)
1483 {
1484 int x = 0;
1485 int y = 0;
1486 GdkModifierType state;
1487 gdk_window_get_pointer(gdk_event->window, &x, &y, &state);
1488 gdk_event->x = x;
1489 gdk_event->y = y;
1490 }
1491
1492 g_lastMouseEvent = (GdkEvent*) gdk_event;
1493
1494 wxMouseEvent event( wxEVT_MOTION );
1495 InitMouseEvent(win, event, gdk_event);
1496
1497 if ( g_captureWindow )
1498 {
1499 // synthesise a mouse enter or leave event if needed
1500 GdkWindow *winUnderMouse = gdk_window_at_pointer(NULL, NULL);
1501 // This seems to be necessary and actually been added to
1502 // GDK itself in version 2.0.X
1503 gdk_flush();
1504
1505 bool hasMouse = winUnderMouse == gdk_event->window;
1506 if ( hasMouse != g_captureWindowHasMouse )
1507 {
1508 // the mouse changed window
1509 g_captureWindowHasMouse = hasMouse;
1510
1511 wxMouseEvent eventM(g_captureWindowHasMouse ? wxEVT_ENTER_WINDOW
1512 : wxEVT_LEAVE_WINDOW);
1513 InitMouseEvent(win, eventM, gdk_event);
1514 eventM.SetEventObject(win);
1515 win->GTKProcessEvent(eventM);
1516 }
1517 }
1518 else // no capture
1519 {
1520 win = FindWindowForMouseEvent(win, event.m_x, event.m_y);
1521
1522 // reset the event object and id in case win changed.
1523 event.SetEventObject( win );
1524 event.SetId( win->GetId() );
1525 }
1526
1527 if ( !g_captureWindow )
1528 {
1529 wxSetCursorEvent cevent( event.m_x, event.m_y );
1530 if (win->GTKProcessEvent( cevent ))
1531 {
1532 win->SetCursor( cevent.GetCursor() );
1533 }
1534 }
1535
1536 bool ret = win->GTKProcessEvent(event);
1537
1538 g_lastMouseEvent = NULL;
1539
1540 return ret;
1541 }
1542
1543 //-----------------------------------------------------------------------------
1544 // "scroll_event" (mouse wheel event)
1545 //-----------------------------------------------------------------------------
1546
1547 static gboolean
1548 window_scroll_event_hscrollbar(GtkWidget*, GdkEventScroll* gdk_event, wxWindow* win)
1549 {
1550 if (gdk_event->direction != GDK_SCROLL_LEFT &&
1551 gdk_event->direction != GDK_SCROLL_RIGHT)
1552 {
1553 return false;
1554 }
1555
1556 wxMouseEvent event(wxEVT_MOUSEWHEEL);
1557 InitMouseEvent(win, event, gdk_event);
1558
1559 GtkRange *range = win->m_scrollBar[wxWindow::ScrollDir_Horz];
1560 if (!range) return FALSE;
1561
1562 if (range && GTK_WIDGET_VISIBLE (range))
1563 {
1564 GtkAdjustment *adj = range->adjustment;
1565 gdouble delta = adj->step_increment * 3;
1566 if (gdk_event->direction == GDK_SCROLL_LEFT)
1567 delta = -delta;
1568
1569 gdouble new_value = CLAMP (adj->value + delta, adj->lower, adj->upper - adj->page_size);
1570
1571 gtk_adjustment_set_value (adj, new_value);
1572
1573 return TRUE;
1574 }
1575
1576 return FALSE;
1577 }
1578
1579 static gboolean
1580 window_scroll_event(GtkWidget*, GdkEventScroll* gdk_event, wxWindow* win)
1581 {
1582 if (gdk_event->direction != GDK_SCROLL_UP &&
1583 gdk_event->direction != GDK_SCROLL_DOWN)
1584 {
1585 return false;
1586 }
1587
1588 wxMouseEvent event(wxEVT_MOUSEWHEEL);
1589 InitMouseEvent(win, event, gdk_event);
1590
1591 // FIXME: Get these values from GTK or GDK
1592 event.m_linesPerAction = 3;
1593 event.m_wheelDelta = 120;
1594 if (gdk_event->direction == GDK_SCROLL_UP)
1595 event.m_wheelRotation = 120;
1596 else
1597 event.m_wheelRotation = -120;
1598
1599 if (win->GTKProcessEvent(event))
1600 return TRUE;
1601
1602 GtkRange *range = win->m_scrollBar[wxWindow::ScrollDir_Vert];
1603 if (!range) return FALSE;
1604
1605 if (range && GTK_WIDGET_VISIBLE (range))
1606 {
1607 GtkAdjustment *adj = range->adjustment;
1608 gdouble delta = adj->step_increment * 3;
1609 if (gdk_event->direction == GDK_SCROLL_UP)
1610 delta = -delta;
1611
1612 gdouble new_value = CLAMP (adj->value + delta, adj->lower, adj->upper - adj->page_size);
1613
1614 gtk_adjustment_set_value (adj, new_value);
1615
1616 return TRUE;
1617 }
1618
1619 return FALSE;
1620 }
1621
1622 //-----------------------------------------------------------------------------
1623 // "popup-menu"
1624 //-----------------------------------------------------------------------------
1625
1626 static gboolean wxgtk_window_popup_menu_callback(GtkWidget*, wxWindowGTK* win)
1627 {
1628 wxContextMenuEvent event(wxEVT_CONTEXT_MENU, win->GetId(), wxPoint(-1, -1));
1629 event.SetEventObject(win);
1630 return win->GTKProcessEvent(event);
1631 }
1632
1633 //-----------------------------------------------------------------------------
1634 // "focus_in_event"
1635 //-----------------------------------------------------------------------------
1636
1637 static gboolean
1638 gtk_window_focus_in_callback( GtkWidget * WXUNUSED(widget),
1639 GdkEventFocus *WXUNUSED(event),
1640 wxWindowGTK *win )
1641 {
1642 return win->GTKHandleFocusIn();
1643 }
1644
1645 //-----------------------------------------------------------------------------
1646 // "focus_out_event"
1647 //-----------------------------------------------------------------------------
1648
1649 static gboolean
1650 gtk_window_focus_out_callback( GtkWidget * WXUNUSED(widget),
1651 GdkEventFocus * WXUNUSED(gdk_event),
1652 wxWindowGTK *win )
1653 {
1654 return win->GTKHandleFocusOut();
1655 }
1656
1657 //-----------------------------------------------------------------------------
1658 // "focus"
1659 //-----------------------------------------------------------------------------
1660
1661 static gboolean
1662 wx_window_focus_callback(GtkWidget *widget,
1663 GtkDirectionType WXUNUSED(direction),
1664 wxWindowGTK *win)
1665 {
1666 // the default handler for focus signal in GtkScrolledWindow sets
1667 // focus to the window itself even if it doesn't accept focus, i.e. has no
1668 // GTK_CAN_FOCUS in its style -- work around this by forcibly preventing
1669 // the signal from reaching gtk_scrolled_window_focus() if we don't have
1670 // any children which might accept focus (we know we don't accept the focus
1671 // ourselves as this signal is only connected in this case)
1672 if ( win->GetChildren().empty() )
1673 g_signal_stop_emission_by_name(widget, "focus");
1674
1675 // we didn't change the focus
1676 return FALSE;
1677 }
1678
1679 //-----------------------------------------------------------------------------
1680 // "enter_notify_event"
1681 //-----------------------------------------------------------------------------
1682
1683 static gboolean
1684 gtk_window_enter_callback( GtkWidget *widget,
1685 GdkEventCrossing *gdk_event,
1686 wxWindowGTK *win )
1687 {
1688 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1689
1690 // Event was emitted after a grab
1691 if (gdk_event->mode != GDK_CROSSING_NORMAL) return FALSE;
1692
1693 int x = 0;
1694 int y = 0;
1695 GdkModifierType state = (GdkModifierType)0;
1696
1697 gdk_window_get_pointer( widget->window, &x, &y, &state );
1698
1699 wxMouseEvent event( wxEVT_ENTER_WINDOW );
1700 InitMouseEvent(win, event, gdk_event);
1701 wxPoint pt = win->GetClientAreaOrigin();
1702 event.m_x = x + pt.x;
1703 event.m_y = y + pt.y;
1704
1705 if ( !g_captureWindow )
1706 {
1707 wxSetCursorEvent cevent( event.m_x, event.m_y );
1708 if (win->GTKProcessEvent( cevent ))
1709 {
1710 win->SetCursor( cevent.GetCursor() );
1711 }
1712 }
1713
1714 return win->GTKProcessEvent(event);
1715 }
1716
1717 //-----------------------------------------------------------------------------
1718 // "leave_notify_event"
1719 //-----------------------------------------------------------------------------
1720
1721 static gboolean
1722 gtk_window_leave_callback( GtkWidget *widget,
1723 GdkEventCrossing *gdk_event,
1724 wxWindowGTK *win )
1725 {
1726 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1727
1728 // Event was emitted after an ungrab
1729 if (gdk_event->mode != GDK_CROSSING_NORMAL) return FALSE;
1730
1731 wxMouseEvent event( wxEVT_LEAVE_WINDOW );
1732
1733 int x = 0;
1734 int y = 0;
1735 GdkModifierType state = (GdkModifierType)0;
1736
1737 gdk_window_get_pointer( widget->window, &x, &y, &state );
1738
1739 InitMouseEvent(win, event, gdk_event);
1740
1741 return win->GTKProcessEvent(event);
1742 }
1743
1744 //-----------------------------------------------------------------------------
1745 // "value_changed" from scrollbar
1746 //-----------------------------------------------------------------------------
1747
1748 static void
1749 gtk_scrollbar_value_changed(GtkRange* range, wxWindow* win)
1750 {
1751 wxEventType eventType = win->GTKGetScrollEventType(range);
1752 if (eventType != wxEVT_NULL)
1753 {
1754 // Convert scroll event type to scrollwin event type
1755 eventType += wxEVT_SCROLLWIN_TOP - wxEVT_SCROLL_TOP;
1756
1757 // find the scrollbar which generated the event
1758 wxWindowGTK::ScrollDir dir = win->ScrollDirFromRange(range);
1759
1760 // generate the corresponding wx event
1761 const int orient = wxWindow::OrientFromScrollDir(dir);
1762 wxScrollWinEvent event(eventType, win->GetScrollPos(orient), orient);
1763 event.SetEventObject(win);
1764
1765 win->GTKProcessEvent(event);
1766 }
1767 }
1768
1769 //-----------------------------------------------------------------------------
1770 // "button_press_event" from scrollbar
1771 //-----------------------------------------------------------------------------
1772
1773 static gboolean
1774 gtk_scrollbar_button_press_event(GtkRange*, GdkEventButton*, wxWindow* win)
1775 {
1776 g_blockEventsOnScroll = true;
1777 win->m_mouseButtonDown = true;
1778
1779 return false;
1780 }
1781
1782 //-----------------------------------------------------------------------------
1783 // "event_after" from scrollbar
1784 //-----------------------------------------------------------------------------
1785
1786 static void
1787 gtk_scrollbar_event_after(GtkRange* range, GdkEvent* event, wxWindow* win)
1788 {
1789 if (event->type == GDK_BUTTON_RELEASE)
1790 {
1791 g_signal_handlers_block_by_func(range, (void*)gtk_scrollbar_event_after, win);
1792
1793 const int orient = wxWindow::OrientFromScrollDir(
1794 win->ScrollDirFromRange(range));
1795 wxScrollWinEvent evt(wxEVT_SCROLLWIN_THUMBRELEASE,
1796 win->GetScrollPos(orient), orient);
1797 evt.SetEventObject(win);
1798 win->GTKProcessEvent(evt);
1799 }
1800 }
1801
1802 //-----------------------------------------------------------------------------
1803 // "button_release_event" from scrollbar
1804 //-----------------------------------------------------------------------------
1805
1806 static gboolean
1807 gtk_scrollbar_button_release_event(GtkRange* range, GdkEventButton*, wxWindow* win)
1808 {
1809 g_blockEventsOnScroll = false;
1810 win->m_mouseButtonDown = false;
1811 // If thumb tracking
1812 if (win->m_isScrolling)
1813 {
1814 win->m_isScrolling = false;
1815 // Hook up handler to send thumb release event after this emission is finished.
1816 // To allow setting scroll position from event handler, sending event must
1817 // be deferred until after the GtkRange handler for this signal has run
1818 g_signal_handlers_unblock_by_func(range, (void*)gtk_scrollbar_event_after, win);
1819 }
1820
1821 return false;
1822 }
1823
1824 //-----------------------------------------------------------------------------
1825 // "realize" from m_widget
1826 //-----------------------------------------------------------------------------
1827
1828 static void
1829 gtk_window_realized_callback(GtkWidget* widget, wxWindow* win)
1830 {
1831 if (win->m_imData)
1832 {
1833 gtk_im_context_set_client_window( win->m_imData->context,
1834 widget->window);
1835 }
1836
1837 // We cannot set colours and fonts before the widget
1838 // been realized, so we do this directly after realization
1839 // or otherwise in idle time
1840
1841 if (win->m_needsStyleChange)
1842 {
1843 win->SetBackgroundStyle(win->GetBackgroundStyle());
1844 win->m_needsStyleChange = false;
1845 }
1846
1847 wxWindowCreateEvent event( win );
1848 event.SetEventObject( win );
1849 win->GTKProcessEvent( event );
1850 }
1851
1852 //-----------------------------------------------------------------------------
1853 // "size_allocate" from m_wxwindow or m_widget
1854 //-----------------------------------------------------------------------------
1855
1856 static void
1857 size_allocate(GtkWidget*, GtkAllocation* alloc, wxWindow* win)
1858 {
1859 int w = alloc->width;
1860 int h = alloc->height;
1861 if (win->m_wxwindow)
1862 {
1863 int border_x, border_y;
1864 WX_PIZZA(win->m_wxwindow)->get_border_widths(border_x, border_y);
1865 w -= 2 * border_x;
1866 h -= 2 * border_y;
1867 if (w < 0) w = 0;
1868 if (h < 0) h = 0;
1869 }
1870 if (win->m_oldClientWidth != w || win->m_oldClientHeight != h)
1871 {
1872 win->m_oldClientWidth = w;
1873 win->m_oldClientHeight = h;
1874 // this callback can be connected to m_wxwindow,
1875 // so always get size from m_widget->allocation
1876 win->m_width = win->m_widget->allocation.width;
1877 win->m_height = win->m_widget->allocation.height;
1878 if (!win->m_nativeSizeEvent)
1879 {
1880 wxSizeEvent event(win->GetSize(), win->GetId());
1881 event.SetEventObject(win);
1882 win->GTKProcessEvent(event);
1883 }
1884 }
1885 }
1886
1887 //-----------------------------------------------------------------------------
1888 // "grab_broken"
1889 //-----------------------------------------------------------------------------
1890
1891 #if GTK_CHECK_VERSION(2, 8, 0)
1892 static gboolean
1893 gtk_window_grab_broken( GtkWidget*,
1894 GdkEventGrabBroken *event,
1895 wxWindow *win )
1896 {
1897 // Mouse capture has been lost involuntarily, notify the application
1898 if(!event->keyboard && wxWindow::GetCapture() == win)
1899 {
1900 wxMouseCaptureLostEvent evt( win->GetId() );
1901 evt.SetEventObject( win );
1902 win->HandleWindowEvent( evt );
1903 }
1904 return false;
1905 }
1906 #endif
1907
1908 //-----------------------------------------------------------------------------
1909 // "style_set"
1910 //-----------------------------------------------------------------------------
1911
1912 static
1913 void gtk_window_style_set_callback( GtkWidget *WXUNUSED(widget),
1914 GtkStyle *previous_style,
1915 wxWindow* win )
1916 {
1917 if (win && previous_style)
1918 {
1919 wxSysColourChangedEvent event;
1920 event.SetEventObject(win);
1921
1922 win->GTKProcessEvent( event );
1923 }
1924 }
1925
1926 } // extern "C"
1927
1928 // Helper to suspend colour change event event processing while we change a widget's style
1929 class wxSuspendStyleEvents
1930 {
1931 public:
1932 wxSuspendStyleEvents(wxWindow* win)
1933 {
1934 m_win = NULL;
1935 if (win->m_wxwindow && win->IsTopLevel())
1936 {
1937 m_win = win;
1938 g_signal_handlers_block_by_func(
1939 m_win->m_wxwindow, (void*)gtk_window_style_set_callback, m_win);
1940 }
1941 }
1942 ~wxSuspendStyleEvents()
1943 {
1944 if (m_win)
1945 g_signal_handlers_unblock_by_func(
1946 m_win->m_wxwindow, (void*)gtk_window_style_set_callback, m_win);
1947 }
1948
1949 wxWindow* m_win;
1950 };
1951
1952 // ----------------------------------------------------------------------------
1953 // this wxWindowBase function is implemented here (in platform-specific file)
1954 // because it is static and so couldn't be made virtual
1955 // ----------------------------------------------------------------------------
1956
1957 wxWindow *wxWindowBase::DoFindFocus()
1958 {
1959 wxWindowGTK *focus = gs_pendingFocus ? gs_pendingFocus : gs_currentFocus;
1960 // the cast is necessary when we compile in wxUniversal mode
1961 return static_cast<wxWindow*>(focus);
1962 }
1963
1964 void wxWindowGTK::AddChildGTK(wxWindowGTK* child)
1965 {
1966 wxASSERT_MSG(m_wxwindow, "Cannot add a child to a window without a client area");
1967
1968 // the window might have been scrolled already, we
1969 // have to adapt the position
1970 wxPizza* pizza = WX_PIZZA(m_wxwindow);
1971 child->m_x += pizza->m_scroll_x;
1972 child->m_y += pizza->m_scroll_y;
1973
1974 gtk_widget_set_size_request(
1975 child->m_widget, child->m_width, child->m_height);
1976 gtk_fixed_put(
1977 GTK_FIXED(m_wxwindow), child->m_widget, child->m_x, child->m_y);
1978 }
1979
1980 //-----------------------------------------------------------------------------
1981 // global functions
1982 //-----------------------------------------------------------------------------
1983
1984 wxWindow *wxGetActiveWindow()
1985 {
1986 return wxWindow::FindFocus();
1987 }
1988
1989
1990 wxMouseState wxGetMouseState()
1991 {
1992 wxMouseState ms;
1993
1994 gint x;
1995 gint y;
1996 GdkModifierType mask;
1997
1998 gdk_window_get_pointer(NULL, &x, &y, &mask);
1999
2000 ms.SetX(x);
2001 ms.SetY(y);
2002 ms.SetLeftDown((mask & GDK_BUTTON1_MASK) != 0);
2003 ms.SetMiddleDown((mask & GDK_BUTTON2_MASK) != 0);
2004 ms.SetRightDown((mask & GDK_BUTTON3_MASK) != 0);
2005 ms.SetAux1Down((mask & GDK_BUTTON4_MASK) != 0);
2006 ms.SetAux2Down((mask & GDK_BUTTON5_MASK) != 0);
2007
2008 ms.SetControlDown((mask & GDK_CONTROL_MASK) != 0);
2009 ms.SetShiftDown((mask & GDK_SHIFT_MASK) != 0);
2010 ms.SetAltDown((mask & GDK_MOD1_MASK) != 0);
2011 ms.SetMetaDown((mask & GDK_META_MASK) != 0);
2012
2013 return ms;
2014 }
2015
2016 //-----------------------------------------------------------------------------
2017 // wxWindowGTK
2018 //-----------------------------------------------------------------------------
2019
2020 // in wxUniv/MSW this class is abstract because it doesn't have DoPopupMenu()
2021 // method
2022 #ifdef __WXUNIVERSAL__
2023 IMPLEMENT_ABSTRACT_CLASS(wxWindowGTK, wxWindowBase)
2024 #else // __WXGTK__
2025 IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxWindowBase)
2026 #endif // __WXUNIVERSAL__/__WXGTK__
2027
2028 void wxWindowGTK::Init()
2029 {
2030 // GTK specific
2031 m_widget = NULL;
2032 m_wxwindow = NULL;
2033 m_focusWidget = NULL;
2034
2035 // position/size
2036 m_x = 0;
2037 m_y = 0;
2038 m_width = 0;
2039 m_height = 0;
2040
2041 m_hasVMT = false;
2042
2043 m_showOnIdle = false;
2044
2045 m_noExpose = false;
2046 m_nativeSizeEvent = false;
2047
2048 m_isScrolling = false;
2049 m_mouseButtonDown = false;
2050
2051 // initialize scrolling stuff
2052 for ( int dir = 0; dir < ScrollDir_Max; dir++ )
2053 {
2054 m_scrollBar[dir] = NULL;
2055 m_scrollPos[dir] = 0;
2056 }
2057
2058 m_oldClientWidth =
2059 m_oldClientHeight = 0;
2060
2061 m_clipPaintRegion = false;
2062
2063 m_needsStyleChange = false;
2064
2065 m_cursor = *wxSTANDARD_CURSOR;
2066
2067 m_imData = NULL;
2068 m_dirtyTabOrder = false;
2069 }
2070
2071 wxWindowGTK::wxWindowGTK()
2072 {
2073 Init();
2074 }
2075
2076 wxWindowGTK::wxWindowGTK( wxWindow *parent,
2077 wxWindowID id,
2078 const wxPoint &pos,
2079 const wxSize &size,
2080 long style,
2081 const wxString &name )
2082 {
2083 Init();
2084
2085 Create( parent, id, pos, size, style, name );
2086 }
2087
2088 bool wxWindowGTK::Create( wxWindow *parent,
2089 wxWindowID id,
2090 const wxPoint &pos,
2091 const wxSize &size,
2092 long style,
2093 const wxString &name )
2094 {
2095 // Get default border
2096 wxBorder border = GetBorder(style);
2097
2098 style &= ~wxBORDER_MASK;
2099 style |= border;
2100
2101 if (!PreCreation( parent, pos, size ) ||
2102 !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
2103 {
2104 wxFAIL_MSG( wxT("wxWindowGTK creation failed") );
2105 return false;
2106 }
2107
2108 // We should accept the native look
2109 #if 0
2110 GtkScrolledWindowClass *scroll_class = GTK_SCROLLED_WINDOW_CLASS( GTK_OBJECT_GET_CLASS(m_widget) );
2111 scroll_class->scrollbar_spacing = 0;
2112 #endif
2113
2114
2115 m_wxwindow = wxPizza::New(m_windowStyle,this);
2116 #ifndef __WXUNIVERSAL__
2117 if (HasFlag(wxPizza::BORDER_STYLES))
2118 {
2119 g_signal_connect(m_wxwindow, "parent_set",
2120 G_CALLBACK(parent_set), this);
2121 }
2122 #endif
2123 if (!HasFlag(wxHSCROLL) && !HasFlag(wxVSCROLL))
2124 m_widget = m_wxwindow;
2125 else
2126 {
2127 m_widget = gtk_scrolled_window_new( NULL, NULL );
2128
2129 GtkScrolledWindow *scrolledWindow = GTK_SCROLLED_WINDOW(m_widget);
2130
2131 // There is a conflict with default bindings at GTK+
2132 // level between scrolled windows and notebooks both of which want to use
2133 // Ctrl-PageUp/Down: scrolled windows for scrolling in the horizontal
2134 // direction and notebooks for changing pages -- we decide that if we don't
2135 // have wxHSCROLL style we can safely sacrifice horizontal scrolling if it
2136 // means we can get working keyboard navigation in notebooks
2137 if ( !HasFlag(wxHSCROLL) )
2138 {
2139 GtkBindingSet *
2140 bindings = gtk_binding_set_by_class(G_OBJECT_GET_CLASS(m_widget));
2141 if ( bindings )
2142 {
2143 gtk_binding_entry_remove(bindings, GDK_Page_Up, GDK_CONTROL_MASK);
2144 gtk_binding_entry_remove(bindings, GDK_Page_Down, GDK_CONTROL_MASK);
2145 }
2146 }
2147
2148 if (HasFlag(wxALWAYS_SHOW_SB))
2149 {
2150 gtk_scrolled_window_set_policy( scrolledWindow, GTK_POLICY_ALWAYS, GTK_POLICY_ALWAYS );
2151
2152 scrolledWindow->hscrollbar_visible = TRUE;
2153 scrolledWindow->vscrollbar_visible = TRUE;
2154 }
2155 else
2156 {
2157 gtk_scrolled_window_set_policy( scrolledWindow, GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
2158 }
2159
2160 m_scrollBar[ScrollDir_Horz] = GTK_RANGE(scrolledWindow->hscrollbar);
2161 m_scrollBar[ScrollDir_Vert] = GTK_RANGE(scrolledWindow->vscrollbar);
2162 if (GetLayoutDirection() == wxLayout_RightToLeft)
2163 gtk_range_set_inverted( m_scrollBar[ScrollDir_Horz], TRUE );
2164
2165 gtk_container_add( GTK_CONTAINER(m_widget), m_wxwindow );
2166
2167 // connect various scroll-related events
2168 for ( int dir = 0; dir < ScrollDir_Max; dir++ )
2169 {
2170 // these handlers block mouse events to any window during scrolling
2171 // such as motion events and prevent GTK and wxWidgets from fighting
2172 // over where the slider should be
2173 g_signal_connect(m_scrollBar[dir], "button_press_event",
2174 G_CALLBACK(gtk_scrollbar_button_press_event), this);
2175 g_signal_connect(m_scrollBar[dir], "button_release_event",
2176 G_CALLBACK(gtk_scrollbar_button_release_event), this);
2177
2178 gulong handler_id = g_signal_connect(m_scrollBar[dir], "event_after",
2179 G_CALLBACK(gtk_scrollbar_event_after), this);
2180 g_signal_handler_block(m_scrollBar[dir], handler_id);
2181
2182 // these handlers get notified when scrollbar slider moves
2183 g_signal_connect_after(m_scrollBar[dir], "value_changed",
2184 G_CALLBACK(gtk_scrollbar_value_changed), this);
2185 }
2186
2187 gtk_widget_show( m_wxwindow );
2188 }
2189 g_object_ref(m_widget);
2190
2191 if (m_parent)
2192 m_parent->DoAddChild( this );
2193
2194 m_focusWidget = m_wxwindow;
2195
2196 SetCanFocus(AcceptsFocus());
2197
2198 PostCreation();
2199
2200 return true;
2201 }
2202
2203 wxWindowGTK::~wxWindowGTK()
2204 {
2205 SendDestroyEvent();
2206
2207 if (gs_currentFocus == this)
2208 gs_currentFocus = NULL;
2209 if (gs_pendingFocus == this)
2210 gs_pendingFocus = NULL;
2211
2212 if ( gs_deferredFocusOut == this )
2213 gs_deferredFocusOut = NULL;
2214
2215 m_hasVMT = false;
2216
2217 // destroy children before destroying this window itself
2218 DestroyChildren();
2219
2220 // unhook focus handlers to prevent stray events being
2221 // propagated to this (soon to be) dead object
2222 if (m_focusWidget != NULL)
2223 {
2224 g_signal_handlers_disconnect_by_func (m_focusWidget,
2225 (gpointer) gtk_window_focus_in_callback,
2226 this);
2227 g_signal_handlers_disconnect_by_func (m_focusWidget,
2228 (gpointer) gtk_window_focus_out_callback,
2229 this);
2230 }
2231
2232 if (m_widget)
2233 Show( false );
2234
2235 // delete before the widgets to avoid a crash on solaris
2236 delete m_imData;
2237
2238 if (m_widget)
2239 {
2240 // Note that gtk_widget_destroy() does not destroy the widget, it just
2241 // emits the "destroy" signal. The widget is not actually destroyed
2242 // until its reference count drops to zero.
2243 gtk_widget_destroy(m_widget);
2244 // Release our reference, should be the last one
2245 g_object_unref(m_widget);
2246 m_widget = NULL;
2247 }
2248 m_wxwindow = NULL;
2249 }
2250
2251 bool wxWindowGTK::PreCreation( wxWindowGTK *parent, const wxPoint &pos, const wxSize &size )
2252 {
2253 if ( GTKNeedsParent() )
2254 {
2255 wxCHECK_MSG( parent, false, wxT("Must have non-NULL parent") );
2256 }
2257
2258 // Use either the given size, or the default if -1 is given.
2259 // See wxWindowBase for these functions.
2260 m_width = WidthDefault(size.x) ;
2261 m_height = HeightDefault(size.y);
2262
2263 m_x = (int)pos.x;
2264 m_y = (int)pos.y;
2265
2266 return true;
2267 }
2268
2269 void wxWindowGTK::PostCreation()
2270 {
2271 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
2272
2273 if (m_wxwindow)
2274 {
2275 if (!m_noExpose)
2276 {
2277 // these get reported to wxWidgets -> wxPaintEvent
2278
2279 g_signal_connect (m_wxwindow, "expose_event",
2280 G_CALLBACK (gtk_window_expose_callback), this);
2281
2282 if (GetLayoutDirection() == wxLayout_LeftToRight)
2283 gtk_widget_set_redraw_on_allocate(m_wxwindow, HasFlag(wxFULL_REPAINT_ON_RESIZE));
2284 }
2285
2286 // Create input method handler
2287 m_imData = new wxGtkIMData;
2288
2289 // Cannot handle drawing preedited text yet
2290 gtk_im_context_set_use_preedit( m_imData->context, FALSE );
2291
2292 g_signal_connect (m_imData->context, "commit",
2293 G_CALLBACK (gtk_wxwindow_commit_cb), this);
2294 }
2295
2296 // focus handling
2297
2298 if (!GTK_IS_WINDOW(m_widget))
2299 {
2300 if (m_focusWidget == NULL)
2301 m_focusWidget = m_widget;
2302
2303 if (m_wxwindow)
2304 {
2305 g_signal_connect (m_focusWidget, "focus_in_event",
2306 G_CALLBACK (gtk_window_focus_in_callback), this);
2307 g_signal_connect (m_focusWidget, "focus_out_event",
2308 G_CALLBACK (gtk_window_focus_out_callback), this);
2309 }
2310 else
2311 {
2312 g_signal_connect_after (m_focusWidget, "focus_in_event",
2313 G_CALLBACK (gtk_window_focus_in_callback), this);
2314 g_signal_connect_after (m_focusWidget, "focus_out_event",
2315 G_CALLBACK (gtk_window_focus_out_callback), this);
2316 }
2317 }
2318
2319 if ( !AcceptsFocusFromKeyboard() )
2320 {
2321 SetCanFocus(false);
2322
2323 g_signal_connect(m_widget, "focus",
2324 G_CALLBACK(wx_window_focus_callback), this);
2325 }
2326
2327 // connect to the various key and mouse handlers
2328
2329 GtkWidget *connect_widget = GetConnectWidget();
2330
2331 ConnectWidget( connect_widget );
2332
2333 /* We cannot set colours, fonts and cursors before the widget has
2334 been realized, so we do this directly after realization */
2335 g_signal_connect (connect_widget, "realize",
2336 G_CALLBACK (gtk_window_realized_callback), this);
2337
2338 if (!IsTopLevel())
2339 {
2340 g_signal_connect(m_wxwindow ? m_wxwindow : m_widget, "size_allocate",
2341 G_CALLBACK(size_allocate), this);
2342 }
2343
2344 if (m_wxwindow)
2345 {
2346 #if GTK_CHECK_VERSION(2, 8, 0)
2347 if (!gtk_check_version(2,8,0))
2348 {
2349 // Make sure we can notify the app when mouse capture is lost
2350 g_signal_connect (m_wxwindow, "grab_broken_event",
2351 G_CALLBACK (gtk_window_grab_broken), this);
2352 }
2353 #endif
2354 }
2355
2356 if ( connect_widget != m_wxwindow )
2357 {
2358 #if GTK_CHECK_VERSION(2, 8, 0)
2359 if (!gtk_check_version(2,8,0))
2360 {
2361 // Make sure we can notify app code when mouse capture is lost
2362 g_signal_connect (connect_widget, "grab_broken_event",
2363 G_CALLBACK (gtk_window_grab_broken), this);
2364 }
2365 #endif
2366 }
2367
2368 #ifdef GTK_IS_FILE_CHOOSER_BUTTON
2369 if (!gtk_check_version(2,6,0) && GTK_IS_FILE_CHOOSER_BUTTON(m_widget))
2370 {
2371 // If we connect to the "size_request" signal of a GtkFileChooserButton
2372 // then that control won't be sized properly when placed inside sizers
2373 // (this can be tested removing this elseif and running XRC or WIDGETS samples)
2374 // FIXME: what should be done here ?
2375 } else
2376 #endif
2377 if ( !IsTopLevel() ) // top level windows use their own callback
2378 {
2379 // This is needed if we want to add our windows into native
2380 // GTK controls, such as the toolbar. With this callback, the
2381 // toolbar gets to know the correct size (the one set by the
2382 // programmer). Sadly, it misbehaves for wxComboBox.
2383 g_signal_connect (m_widget, "size_request",
2384 G_CALLBACK (wxgtk_window_size_request_callback),
2385 this);
2386 }
2387
2388 InheritAttributes();
2389
2390 m_hasVMT = true;
2391
2392 SetLayoutDirection(wxLayout_Default);
2393
2394 // unless the window was created initially hidden (i.e. Hide() had been
2395 // called before Create()), we should show it at GTK+ level as well
2396 if ( IsShown() )
2397 gtk_widget_show( m_widget );
2398 }
2399
2400 void wxWindowGTK::ConnectWidget( GtkWidget *widget )
2401 {
2402 g_signal_connect (widget, "key_press_event",
2403 G_CALLBACK (gtk_window_key_press_callback), this);
2404 g_signal_connect (widget, "key_release_event",
2405 G_CALLBACK (gtk_window_key_release_callback), this);
2406 g_signal_connect (widget, "button_press_event",
2407 G_CALLBACK (gtk_window_button_press_callback), this);
2408 g_signal_connect (widget, "button_release_event",
2409 G_CALLBACK (gtk_window_button_release_callback), this);
2410 g_signal_connect (widget, "motion_notify_event",
2411 G_CALLBACK (gtk_window_motion_notify_callback), this);
2412
2413 g_signal_connect (widget, "scroll_event",
2414 G_CALLBACK (window_scroll_event), this);
2415 if (m_scrollBar[ScrollDir_Horz])
2416 g_signal_connect (m_scrollBar[ScrollDir_Horz], "scroll_event",
2417 G_CALLBACK (window_scroll_event_hscrollbar), this);
2418 if (m_scrollBar[ScrollDir_Vert])
2419 g_signal_connect (m_scrollBar[ScrollDir_Vert], "scroll_event",
2420 G_CALLBACK (window_scroll_event), this);
2421
2422 g_signal_connect (widget, "popup_menu",
2423 G_CALLBACK (wxgtk_window_popup_menu_callback), this);
2424 g_signal_connect (widget, "enter_notify_event",
2425 G_CALLBACK (gtk_window_enter_callback), this);
2426 g_signal_connect (widget, "leave_notify_event",
2427 G_CALLBACK (gtk_window_leave_callback), this);
2428
2429 if (IsTopLevel() && m_wxwindow)
2430 g_signal_connect (m_wxwindow, "style_set",
2431 G_CALLBACK (gtk_window_style_set_callback), this);
2432 }
2433
2434 bool wxWindowGTK::Destroy()
2435 {
2436 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
2437
2438 m_hasVMT = false;
2439
2440 return wxWindowBase::Destroy();
2441 }
2442
2443 void wxWindowGTK::DoMoveWindow(int x, int y, int width, int height)
2444 {
2445 gtk_widget_set_size_request(m_widget, width, height);
2446
2447 // inform the parent to perform the move
2448 wxASSERT_MSG(m_parent && m_parent->m_wxwindow,
2449 "the parent window has no client area?");
2450 WX_PIZZA(m_parent->m_wxwindow)->move(m_widget, x, y);
2451 }
2452
2453 void wxWindowGTK::ConstrainSize()
2454 {
2455 #ifdef __WXGPE__
2456 // GPE's window manager doesn't like size hints at all, esp. when the user
2457 // has to use the virtual keyboard, so don't constrain size there
2458 if (!IsTopLevel())
2459 #endif
2460 {
2461 const wxSize minSize = GetMinSize();
2462 const wxSize maxSize = GetMaxSize();
2463 if (minSize.x > 0 && m_width < minSize.x) m_width = minSize.x;
2464 if (minSize.y > 0 && m_height < minSize.y) m_height = minSize.y;
2465 if (maxSize.x > 0 && m_width > maxSize.x) m_width = maxSize.x;
2466 if (maxSize.y > 0 && m_height > maxSize.y) m_height = maxSize.y;
2467 }
2468 }
2469
2470 void wxWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags )
2471 {
2472 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
2473 wxASSERT_MSG( (m_parent != NULL), wxT("wxWindowGTK::SetSize requires parent.\n") );
2474
2475 int currentX, currentY;
2476 GetPosition(&currentX, &currentY);
2477 if (x == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2478 x = currentX;
2479 if (y == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2480 y = currentY;
2481 AdjustForParentClientOrigin(x, y, sizeFlags);
2482
2483 // calculate the best size if we should auto size the window
2484 if ( ((sizeFlags & wxSIZE_AUTO_WIDTH) && width == -1) ||
2485 ((sizeFlags & wxSIZE_AUTO_HEIGHT) && height == -1) )
2486 {
2487 const wxSize sizeBest = GetBestSize();
2488 if ( (sizeFlags & wxSIZE_AUTO_WIDTH) && width == -1 )
2489 width = sizeBest.x;
2490 if ( (sizeFlags & wxSIZE_AUTO_HEIGHT) && height == -1 )
2491 height = sizeBest.y;
2492 }
2493
2494 const wxSize oldSize(m_width, m_height);
2495 if (width != -1)
2496 m_width = width;
2497 if (height != -1)
2498 m_height = height;
2499
2500 if (m_parent->m_wxwindow)
2501 {
2502 wxPizza* pizza = WX_PIZZA(m_parent->m_wxwindow);
2503 m_x = x + pizza->m_scroll_x;
2504 m_y = y + pizza->m_scroll_y;
2505
2506 int left_border = 0;
2507 int right_border = 0;
2508 int top_border = 0;
2509 int bottom_border = 0;
2510
2511 /* the default button has a border around it */
2512 if (GTK_WIDGET_CAN_DEFAULT(m_widget))
2513 {
2514 GtkBorder *default_border = NULL;
2515 gtk_widget_style_get( m_widget, "default_border", &default_border, NULL );
2516 if (default_border)
2517 {
2518 left_border += default_border->left;
2519 right_border += default_border->right;
2520 top_border += default_border->top;
2521 bottom_border += default_border->bottom;
2522 gtk_border_free( default_border );
2523 }
2524 }
2525
2526 DoMoveWindow( m_x - left_border,
2527 m_y - top_border,
2528 m_width+left_border+right_border,
2529 m_height+top_border+bottom_border );
2530 }
2531
2532 if (m_width != oldSize.x || m_height != oldSize.y)
2533 {
2534 // update these variables to keep size_allocate handler
2535 // from sending another size event for this change
2536 GetClientSize( &m_oldClientWidth, &m_oldClientHeight );
2537
2538 gtk_widget_queue_resize(m_widget);
2539 if (!m_nativeSizeEvent)
2540 {
2541 wxSizeEvent event( wxSize(m_width,m_height), GetId() );
2542 event.SetEventObject( this );
2543 HandleWindowEvent( event );
2544 }
2545 } else
2546 if (sizeFlags & wxSIZE_FORCE_EVENT)
2547 {
2548 wxSizeEvent event( wxSize(m_width,m_height), GetId() );
2549 event.SetEventObject( this );
2550 HandleWindowEvent( event );
2551 }
2552 }
2553
2554 bool wxWindowGTK::GTKShowFromOnIdle()
2555 {
2556 if (IsShown() && m_showOnIdle && !GTK_WIDGET_VISIBLE (m_widget))
2557 {
2558 GtkAllocation alloc;
2559 alloc.x = m_x;
2560 alloc.y = m_y;
2561 alloc.width = m_width;
2562 alloc.height = m_height;
2563 gtk_widget_size_allocate( m_widget, &alloc );
2564 gtk_widget_show( m_widget );
2565 wxShowEvent eventShow(GetId(), true);
2566 eventShow.SetEventObject(this);
2567 HandleWindowEvent(eventShow);
2568 m_showOnIdle = false;
2569 return true;
2570 }
2571
2572 return false;
2573 }
2574
2575 void wxWindowGTK::OnInternalIdle()
2576 {
2577 if ( gs_deferredFocusOut )
2578 GTKHandleDeferredFocusOut();
2579
2580 // Check if we have to show window now
2581 if (GTKShowFromOnIdle()) return;
2582
2583 if ( m_dirtyTabOrder )
2584 {
2585 m_dirtyTabOrder = false;
2586 RealizeTabOrder();
2587 }
2588
2589 // Update style if the window was not yet realized when
2590 // SetBackgroundStyle() was called
2591 if (m_needsStyleChange)
2592 {
2593 SetBackgroundStyle(GetBackgroundStyle());
2594 m_needsStyleChange = false;
2595 }
2596
2597 wxCursor cursor = m_cursor;
2598 if (g_globalCursor.Ok()) cursor = g_globalCursor;
2599
2600 if (cursor.Ok())
2601 {
2602 /* I now set the cursor anew in every OnInternalIdle call
2603 as setting the cursor in a parent window also effects the
2604 windows above so that checking for the current cursor is
2605 not possible. */
2606
2607 if (m_wxwindow && (m_wxwindow != m_widget))
2608 {
2609 GdkWindow *window = m_wxwindow->window;
2610 if (window)
2611 gdk_window_set_cursor( window, cursor.GetCursor() );
2612
2613 if (!g_globalCursor.Ok())
2614 cursor = *wxSTANDARD_CURSOR;
2615
2616 window = m_widget->window;
2617 if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
2618 gdk_window_set_cursor( window, cursor.GetCursor() );
2619
2620 }
2621 else if ( m_widget )
2622 {
2623 GdkWindow *window = m_widget->window;
2624 if ( window && !GTK_WIDGET_NO_WINDOW(m_widget) )
2625 gdk_window_set_cursor( window, cursor.GetCursor() );
2626 }
2627 }
2628
2629 if (wxUpdateUIEvent::CanUpdate(this) && IsShownOnScreen())
2630 UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
2631 }
2632
2633 void wxWindowGTK::DoGetSize( int *width, int *height ) const
2634 {
2635 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2636
2637 if (width) (*width) = m_width;
2638 if (height) (*height) = m_height;
2639 }
2640
2641 void wxWindowGTK::DoSetClientSize( int width, int height )
2642 {
2643 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2644
2645 const wxSize size = GetSize();
2646 const wxSize clientSize = GetClientSize();
2647 SetSize(width + (size.x - clientSize.x), height + (size.y - clientSize.y));
2648 }
2649
2650 void wxWindowGTK::DoGetClientSize( int *width, int *height ) const
2651 {
2652 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2653
2654 int w = m_width;
2655 int h = m_height;
2656
2657 if ( m_wxwindow )
2658 {
2659 // if window is scrollable, account for scrollbars
2660 if ( GTK_IS_SCROLLED_WINDOW(m_widget) )
2661 {
2662 GtkPolicyType policy[ScrollDir_Max];
2663 gtk_scrolled_window_get_policy(GTK_SCROLLED_WINDOW(m_widget),
2664 &policy[ScrollDir_Horz],
2665 &policy[ScrollDir_Vert]);
2666
2667 for ( int i = 0; i < ScrollDir_Max; i++ )
2668 {
2669 // don't account for the scrollbars we don't have
2670 GtkRange * const range = m_scrollBar[i];
2671 if ( !range )
2672 continue;
2673
2674 // nor for the ones we have but don't current show
2675 switch ( policy[i] )
2676 {
2677 case GTK_POLICY_NEVER:
2678 // never shown so doesn't take any place
2679 continue;
2680
2681 case GTK_POLICY_ALWAYS:
2682 // no checks necessary
2683 break;
2684
2685 case GTK_POLICY_AUTOMATIC:
2686 // may be shown or not, check
2687 GtkAdjustment *adj = gtk_range_get_adjustment(range);
2688 if ( adj->upper <= adj->page_size )
2689 continue;
2690 }
2691
2692 GtkScrolledWindowClass *scroll_class =
2693 GTK_SCROLLED_WINDOW_CLASS( GTK_OBJECT_GET_CLASS(m_widget) );
2694
2695 GtkRequisition req;
2696 gtk_widget_size_request(GTK_WIDGET(range), &req);
2697 if (i == ScrollDir_Horz)
2698 h -= req.height + scroll_class->scrollbar_spacing;
2699 else
2700 w -= req.width + scroll_class->scrollbar_spacing;
2701 }
2702 }
2703
2704 int border_x, border_y;
2705 WX_PIZZA(m_wxwindow)->get_border_widths(border_x, border_y);
2706 w -= 2 * border_x;
2707 h -= 2 * border_y;
2708
2709 if (w < 0)
2710 w = 0;
2711 if (h < 0)
2712 h = 0;
2713 }
2714
2715 if (width) *width = w;
2716 if (height) *height = h;
2717 }
2718
2719 void wxWindowGTK::DoGetPosition( int *x, int *y ) const
2720 {
2721 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2722
2723 int dx = 0;
2724 int dy = 0;
2725 if (!IsTopLevel() && m_parent && m_parent->m_wxwindow)
2726 {
2727 wxPizza* pizza = WX_PIZZA(m_parent->m_wxwindow);
2728 dx = pizza->m_scroll_x;
2729 dy = pizza->m_scroll_y;
2730 }
2731
2732 if (m_x == -1 && m_y == -1)
2733 {
2734 GdkWindow *source = NULL;
2735 if (m_wxwindow)
2736 source = m_wxwindow->window;
2737 else
2738 source = m_widget->window;
2739
2740 if (source)
2741 {
2742 int org_x = 0;
2743 int org_y = 0;
2744 gdk_window_get_origin( source, &org_x, &org_y );
2745
2746 if (m_parent)
2747 m_parent->ScreenToClient(&org_x, &org_y);
2748
2749 const_cast<wxWindowGTK*>(this)->m_x = org_x;
2750 const_cast<wxWindowGTK*>(this)->m_y = org_y;
2751 }
2752 }
2753
2754 if (x) (*x) = m_x - dx;
2755 if (y) (*y) = m_y - dy;
2756 }
2757
2758 void wxWindowGTK::DoClientToScreen( int *x, int *y ) const
2759 {
2760 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2761
2762 if (!m_widget->window) return;
2763
2764 GdkWindow *source = NULL;
2765 if (m_wxwindow)
2766 source = m_wxwindow->window;
2767 else
2768 source = m_widget->window;
2769
2770 int org_x = 0;
2771 int org_y = 0;
2772 gdk_window_get_origin( source, &org_x, &org_y );
2773
2774 if (!m_wxwindow)
2775 {
2776 if (GTK_WIDGET_NO_WINDOW (m_widget))
2777 {
2778 org_x += m_widget->allocation.x;
2779 org_y += m_widget->allocation.y;
2780 }
2781 }
2782
2783
2784 if (x)
2785 {
2786 if (GetLayoutDirection() == wxLayout_RightToLeft)
2787 *x = (GetClientSize().x - *x) + org_x;
2788 else
2789 *x += org_x;
2790 }
2791
2792 if (y) *y += org_y;
2793 }
2794
2795 void wxWindowGTK::DoScreenToClient( int *x, int *y ) const
2796 {
2797 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2798
2799 if (!m_widget->window) return;
2800
2801 GdkWindow *source = NULL;
2802 if (m_wxwindow)
2803 source = m_wxwindow->window;
2804 else
2805 source = m_widget->window;
2806
2807 int org_x = 0;
2808 int org_y = 0;
2809 gdk_window_get_origin( source, &org_x, &org_y );
2810
2811 if (!m_wxwindow)
2812 {
2813 if (GTK_WIDGET_NO_WINDOW (m_widget))
2814 {
2815 org_x += m_widget->allocation.x;
2816 org_y += m_widget->allocation.y;
2817 }
2818 }
2819
2820 if (x)
2821 {
2822 if (GetLayoutDirection() == wxLayout_RightToLeft)
2823 *x = (GetClientSize().x - *x) - org_x;
2824 else
2825 *x -= org_x;
2826 }
2827 if (y) *y -= org_y;
2828 }
2829
2830 bool wxWindowGTK::Show( bool show )
2831 {
2832 if ( !wxWindowBase::Show(show) )
2833 {
2834 // nothing to do
2835 return false;
2836 }
2837
2838 // notice that we may call Hide() before the window is created and this is
2839 // actually useful to create it hidden initially -- but we can't call
2840 // Show() before it is created
2841 if ( !m_widget )
2842 {
2843 wxASSERT_MSG( !show, "can't show invalid window" );
2844 return true;
2845 }
2846
2847 if ( show )
2848 {
2849 if ( m_showOnIdle )
2850 {
2851 // defer until later
2852 return true;
2853 }
2854
2855 gtk_widget_show(m_widget);
2856 }
2857 else // hide
2858 {
2859 gtk_widget_hide(m_widget);
2860 }
2861
2862 wxShowEvent eventShow(GetId(), show);
2863 eventShow.SetEventObject(this);
2864 HandleWindowEvent(eventShow);
2865
2866 return true;
2867 }
2868
2869 void wxWindowGTK::DoEnable( bool enable )
2870 {
2871 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2872
2873 gtk_widget_set_sensitive( m_widget, enable );
2874 if (m_wxwindow && (m_wxwindow != m_widget))
2875 gtk_widget_set_sensitive( m_wxwindow, enable );
2876 }
2877
2878 int wxWindowGTK::GetCharHeight() const
2879 {
2880 wxCHECK_MSG( (m_widget != NULL), 12, wxT("invalid window") );
2881
2882 wxFont font = GetFont();
2883 wxCHECK_MSG( font.Ok(), 12, wxT("invalid font") );
2884
2885 PangoContext* context = gtk_widget_get_pango_context(m_widget);
2886
2887 if (!context)
2888 return 0;
2889
2890 PangoFontDescription *desc = font.GetNativeFontInfo()->description;
2891 PangoLayout *layout = pango_layout_new(context);
2892 pango_layout_set_font_description(layout, desc);
2893 pango_layout_set_text(layout, "H", 1);
2894 PangoLayoutLine *line = (PangoLayoutLine *)pango_layout_get_lines(layout)->data;
2895
2896 PangoRectangle rect;
2897 pango_layout_line_get_extents(line, NULL, &rect);
2898
2899 g_object_unref (layout);
2900
2901 return (int) PANGO_PIXELS(rect.height);
2902 }
2903
2904 int wxWindowGTK::GetCharWidth() const
2905 {
2906 wxCHECK_MSG( (m_widget != NULL), 8, wxT("invalid window") );
2907
2908 wxFont font = GetFont();
2909 wxCHECK_MSG( font.Ok(), 8, wxT("invalid font") );
2910
2911 PangoContext* context = gtk_widget_get_pango_context(m_widget);
2912
2913 if (!context)
2914 return 0;
2915
2916 PangoFontDescription *desc = font.GetNativeFontInfo()->description;
2917 PangoLayout *layout = pango_layout_new(context);
2918 pango_layout_set_font_description(layout, desc);
2919 pango_layout_set_text(layout, "g", 1);
2920 PangoLayoutLine *line = (PangoLayoutLine *)pango_layout_get_lines(layout)->data;
2921
2922 PangoRectangle rect;
2923 pango_layout_line_get_extents(line, NULL, &rect);
2924
2925 g_object_unref (layout);
2926
2927 return (int) PANGO_PIXELS(rect.width);
2928 }
2929
2930 void wxWindowGTK::DoGetTextExtent( const wxString& string,
2931 int *x,
2932 int *y,
2933 int *descent,
2934 int *externalLeading,
2935 const wxFont *theFont ) const
2936 {
2937 wxFont fontToUse = theFont ? *theFont : GetFont();
2938
2939 wxCHECK_RET( fontToUse.Ok(), wxT("invalid font") );
2940
2941 if (string.empty())
2942 {
2943 if (x) (*x) = 0;
2944 if (y) (*y) = 0;
2945 return;
2946 }
2947
2948 PangoContext *context = NULL;
2949 if (m_widget)
2950 context = gtk_widget_get_pango_context( m_widget );
2951
2952 if (!context)
2953 {
2954 if (x) (*x) = 0;
2955 if (y) (*y) = 0;
2956 return;
2957 }
2958
2959 PangoFontDescription *desc = fontToUse.GetNativeFontInfo()->description;
2960 PangoLayout *layout = pango_layout_new(context);
2961 pango_layout_set_font_description(layout, desc);
2962 {
2963 const wxCharBuffer data = wxGTK_CONV( string );
2964 if ( data )
2965 pango_layout_set_text(layout, data, strlen(data));
2966 }
2967
2968 PangoRectangle rect;
2969 pango_layout_get_extents(layout, NULL, &rect);
2970
2971 if (x) (*x) = (wxCoord) PANGO_PIXELS(rect.width);
2972 if (y) (*y) = (wxCoord) PANGO_PIXELS(rect.height);
2973 if (descent)
2974 {
2975 PangoLayoutIter *iter = pango_layout_get_iter(layout);
2976 int baseline = pango_layout_iter_get_baseline(iter);
2977 pango_layout_iter_free(iter);
2978 *descent = *y - PANGO_PIXELS(baseline);
2979 }
2980 if (externalLeading) (*externalLeading) = 0; // ??
2981
2982 g_object_unref (layout);
2983 }
2984
2985 void wxWindowGTK::GTKDisableFocusOutEvent()
2986 {
2987 g_signal_handlers_block_by_func( m_focusWidget,
2988 (gpointer) gtk_window_focus_out_callback, this);
2989 }
2990
2991 void wxWindowGTK::GTKEnableFocusOutEvent()
2992 {
2993 g_signal_handlers_unblock_by_func( m_focusWidget,
2994 (gpointer) gtk_window_focus_out_callback, this);
2995 }
2996
2997 bool wxWindowGTK::GTKHandleFocusIn()
2998 {
2999 // Disable default focus handling for custom windows since the default GTK+
3000 // handler issues a repaint
3001 const bool retval = m_wxwindow ? true : false;
3002
3003
3004 // NB: if there's still unprocessed deferred focus-out event (see
3005 // GTKHandleFocusOut() for explanation), we need to process it first so
3006 // that the order of focus events -- focus-out first, then focus-in
3007 // elsewhere -- is preserved
3008 if ( gs_deferredFocusOut )
3009 {
3010 if ( GTKNeedsToFilterSameWindowFocus() &&
3011 gs_deferredFocusOut == this )
3012 {
3013 // GTK+ focus changed from this wxWindow back to itself, so don't
3014 // emit any events at all
3015 wxLogTrace(TRACE_FOCUS,
3016 "filtered out spurious focus change within %s(%p, %s)",
3017 GetClassInfo()->GetClassName(), this, GetLabel());
3018 gs_deferredFocusOut = NULL;
3019 return retval;
3020 }
3021
3022 // otherwise we need to send focus-out first
3023 wxASSERT_MSG ( gs_deferredFocusOut != this,
3024 "GTKHandleFocusIn(GTKFocus_Normal) called even though focus changed back to itself - derived class should handle this" );
3025 GTKHandleDeferredFocusOut();
3026 }
3027
3028
3029 wxLogTrace(TRACE_FOCUS,
3030 "handling focus_in event for %s(%p, %s)",
3031 GetClassInfo()->GetClassName(), this, GetLabel());
3032
3033 if (m_imData)
3034 gtk_im_context_focus_in(m_imData->context);
3035
3036 gs_currentFocus = this;
3037 gs_pendingFocus = NULL;
3038
3039 #if wxUSE_CARET
3040 // caret needs to be informed about focus change
3041 wxCaret *caret = GetCaret();
3042 if ( caret )
3043 {
3044 caret->OnSetFocus();
3045 }
3046 #endif // wxUSE_CARET
3047
3048 // Notify the parent keeping track of focus for the kbd navigation
3049 // purposes that we got it.
3050 wxChildFocusEvent eventChildFocus(static_cast<wxWindow*>(this));
3051 GTKProcessEvent(eventChildFocus);
3052
3053 wxFocusEvent eventFocus(wxEVT_SET_FOCUS, GetId());
3054 eventFocus.SetEventObject(this);
3055 GTKProcessEvent(eventFocus);
3056
3057 return retval;
3058 }
3059
3060 bool wxWindowGTK::GTKHandleFocusOut()
3061 {
3062 // Disable default focus handling for custom windows since the default GTK+
3063 // handler issues a repaint
3064 const bool retval = m_wxwindow ? true : false;
3065
3066
3067 // NB: If a control is composed of several GtkWidgets and when focus
3068 // changes from one of them to another within the same wxWindow, we get
3069 // a focus-out event followed by focus-in for another GtkWidget owned
3070 // by the same wx control. We don't want to generate two spurious
3071 // wxEVT_SET_FOCUS events in this case, so we defer sending wx events
3072 // from GTKHandleFocusOut() until we know for sure it's not coming back
3073 // (i.e. in GTKHandleFocusIn() or at idle time).
3074 if ( GTKNeedsToFilterSameWindowFocus() )
3075 {
3076 wxASSERT_MSG( gs_deferredFocusOut == NULL,
3077 "deferred focus out event already pending" );
3078 wxLogTrace(TRACE_FOCUS,
3079 "deferring focus_out event for %s(%p, %s)",
3080 GetClassInfo()->GetClassName(), this, GetLabel());
3081 gs_deferredFocusOut = this;
3082 return retval;
3083 }
3084
3085 GTKHandleFocusOutNoDeferring();
3086
3087 return retval;
3088 }
3089
3090 void wxWindowGTK::GTKHandleFocusOutNoDeferring()
3091 {
3092 wxLogTrace(TRACE_FOCUS,
3093 "handling focus_out event for %s(%p, %s)",
3094 GetClassInfo()->GetClassName(), this, GetLabel());
3095
3096 if (m_imData)
3097 gtk_im_context_focus_out(m_imData->context);
3098
3099 if ( gs_currentFocus != this )
3100 {
3101 // Something is terribly wrong, gs_currentFocus is out of sync with the
3102 // real focus. We will reset it to NULL anyway, because after this
3103 // focus-out event is handled, one of the following with happen:
3104 //
3105 // * either focus will go out of the app altogether, in which case
3106 // gs_currentFocus _should_ be NULL
3107 //
3108 // * or it goes to another control, in which case focus-in event will
3109 // follow immediately and it will set gs_currentFocus to the right
3110 // value
3111 wxLogDebug("window %s(%p, %s) lost focus even though it didn't have it",
3112 GetClassInfo()->GetClassName(), this, GetLabel());
3113 }
3114 gs_currentFocus = NULL;
3115
3116 #if wxUSE_CARET
3117 // caret needs to be informed about focus change
3118 wxCaret *caret = GetCaret();
3119 if ( caret )
3120 {
3121 caret->OnKillFocus();
3122 }
3123 #endif // wxUSE_CARET
3124
3125 wxFocusEvent event( wxEVT_KILL_FOCUS, GetId() );
3126 event.SetEventObject( this );
3127 GTKProcessEvent( event );
3128 }
3129
3130 /*static*/
3131 void wxWindowGTK::GTKHandleDeferredFocusOut()
3132 {
3133 // NB: See GTKHandleFocusOut() for explanation. This function is called
3134 // from either GTKHandleFocusIn() or OnInternalIdle() to process
3135 // deferred event.
3136 if ( gs_deferredFocusOut )
3137 {
3138 wxWindowGTK *win = gs_deferredFocusOut;
3139 gs_deferredFocusOut = NULL;
3140
3141 wxLogTrace(TRACE_FOCUS,
3142 "processing deferred focus_out event for %s(%p, %s)",
3143 win->GetClassInfo()->GetClassName(), win, win->GetLabel());
3144
3145 win->GTKHandleFocusOutNoDeferring();
3146 }
3147 }
3148
3149 void wxWindowGTK::SetFocus()
3150 {
3151 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
3152
3153 // Setting "physical" focus is not immediate in GTK+ and while
3154 // gtk_widget_is_focus ("determines if the widget is the focus widget
3155 // within its toplevel", i.e. returns true for one widget per TLW, not
3156 // globally) returns true immediately after grabbing focus,
3157 // GTK_WIDGET_HAS_FOCUS (which returns true only for the one widget that
3158 // has focus at the moment) takes affect only after the window is shown
3159 // (if it was hidden at the moment of the call) or at the next event loop
3160 // iteration.
3161 //
3162 // Because we want to FindFocus() call immediately following
3163 // foo->SetFocus() to return foo, we have to keep track of "pending" focus
3164 // ourselves.
3165 gs_pendingFocus = this;
3166
3167 GtkWidget *widget = m_wxwindow ? m_wxwindow : m_focusWidget;
3168
3169 if ( GTK_IS_CONTAINER(widget) &&
3170 !GTK_WIDGET_CAN_FOCUS(widget) )
3171 {
3172 wxLogTrace(TRACE_FOCUS,
3173 wxT("Setting focus to a child of %s(%p, %s)"),
3174 GetClassInfo()->GetClassName(), this, GetLabel().c_str());
3175 gtk_widget_child_focus(widget, GTK_DIR_TAB_FORWARD);
3176 }
3177 else
3178 {
3179 wxLogTrace(TRACE_FOCUS,
3180 wxT("Setting focus to %s(%p, %s)"),
3181 GetClassInfo()->GetClassName(), this, GetLabel().c_str());
3182 gtk_widget_grab_focus(widget);
3183 }
3184 }
3185
3186 void wxWindowGTK::SetCanFocus(bool canFocus)
3187 {
3188 if ( canFocus )
3189 GTK_WIDGET_SET_FLAGS(m_widget, GTK_CAN_FOCUS);
3190 else
3191 GTK_WIDGET_UNSET_FLAGS(m_widget, GTK_CAN_FOCUS);
3192
3193 if ( m_wxwindow && (m_widget != m_wxwindow) )
3194 {
3195 if ( canFocus )
3196 GTK_WIDGET_SET_FLAGS(m_wxwindow, GTK_CAN_FOCUS);
3197 else
3198 GTK_WIDGET_UNSET_FLAGS(m_wxwindow, GTK_CAN_FOCUS);
3199 }
3200 }
3201
3202 bool wxWindowGTK::Reparent( wxWindowBase *newParentBase )
3203 {
3204 wxCHECK_MSG( (m_widget != NULL), false, wxT("invalid window") );
3205
3206 wxWindowGTK *oldParent = m_parent,
3207 *newParent = (wxWindowGTK *)newParentBase;
3208
3209 wxASSERT( GTK_IS_WIDGET(m_widget) );
3210
3211 if ( !wxWindowBase::Reparent(newParent) )
3212 return false;
3213
3214 wxASSERT( GTK_IS_WIDGET(m_widget) );
3215
3216 if (oldParent)
3217 gtk_container_remove( GTK_CONTAINER(m_widget->parent), m_widget );
3218
3219 wxASSERT( GTK_IS_WIDGET(m_widget) );
3220
3221 if (newParent)
3222 {
3223 if (GTK_WIDGET_VISIBLE (newParent->m_widget))
3224 {
3225 m_showOnIdle = true;
3226 gtk_widget_hide( m_widget );
3227 }
3228 /* insert GTK representation */
3229 newParent->AddChildGTK(this);
3230 }
3231
3232 SetLayoutDirection(wxLayout_Default);
3233
3234 return true;
3235 }
3236
3237 void wxWindowGTK::DoAddChild(wxWindowGTK *child)
3238 {
3239 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
3240 wxASSERT_MSG( (child != NULL), wxT("invalid child window") );
3241
3242 /* add to list */
3243 AddChild( child );
3244
3245 /* insert GTK representation */
3246 AddChildGTK(child);
3247 }
3248
3249 void wxWindowGTK::AddChild(wxWindowBase *child)
3250 {
3251 wxWindowBase::AddChild(child);
3252 m_dirtyTabOrder = true;
3253 wxTheApp->WakeUpIdle();
3254 }
3255
3256 void wxWindowGTK::RemoveChild(wxWindowBase *child)
3257 {
3258 wxWindowBase::RemoveChild(child);
3259 m_dirtyTabOrder = true;
3260 wxTheApp->WakeUpIdle();
3261 }
3262
3263 /* static */
3264 wxLayoutDirection wxWindowGTK::GTKGetLayout(GtkWidget *widget)
3265 {
3266 return gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL
3267 ? wxLayout_RightToLeft
3268 : wxLayout_LeftToRight;
3269 }
3270
3271 /* static */
3272 void wxWindowGTK::GTKSetLayout(GtkWidget *widget, wxLayoutDirection dir)
3273 {
3274 wxASSERT_MSG( dir != wxLayout_Default, wxT("invalid layout direction") );
3275
3276 gtk_widget_set_direction(widget,
3277 dir == wxLayout_RightToLeft ? GTK_TEXT_DIR_RTL
3278 : GTK_TEXT_DIR_LTR);
3279 }
3280
3281 wxLayoutDirection wxWindowGTK::GetLayoutDirection() const
3282 {
3283 return GTKGetLayout(m_widget);
3284 }
3285
3286 void wxWindowGTK::SetLayoutDirection(wxLayoutDirection dir)
3287 {
3288 if ( dir == wxLayout_Default )
3289 {
3290 const wxWindow *const parent = GetParent();
3291 if ( parent )
3292 {
3293 // inherit layout from parent.
3294 dir = parent->GetLayoutDirection();
3295 }
3296 else // no parent, use global default layout
3297 {
3298 dir = wxTheApp->GetLayoutDirection();
3299 }
3300 }
3301
3302 if ( dir == wxLayout_Default )
3303 return;
3304
3305 GTKSetLayout(m_widget, dir);
3306
3307 if (m_wxwindow && (m_wxwindow != m_widget))
3308 GTKSetLayout(m_wxwindow, dir);
3309 }
3310
3311 wxCoord
3312 wxWindowGTK::AdjustForLayoutDirection(wxCoord x,
3313 wxCoord WXUNUSED(width),
3314 wxCoord WXUNUSED(widthTotal)) const
3315 {
3316 // We now mirror the coordinates of RTL windows in wxPizza
3317 return x;
3318 }
3319
3320 void wxWindowGTK::DoMoveInTabOrder(wxWindow *win, WindowOrder move)
3321 {
3322 wxWindowBase::DoMoveInTabOrder(win, move);
3323 m_dirtyTabOrder = true;
3324 wxTheApp->WakeUpIdle();
3325 }
3326
3327 bool wxWindowGTK::DoNavigateIn(int flags)
3328 {
3329 if ( flags & wxNavigationKeyEvent::WinChange )
3330 {
3331 wxFAIL_MSG( wxT("not implemented") );
3332
3333 return false;
3334 }
3335 else // navigate inside the container
3336 {
3337 wxWindow *parent = wxGetTopLevelParent((wxWindow *)this);
3338 wxCHECK_MSG( parent, false, wxT("every window must have a TLW parent") );
3339
3340 GtkDirectionType dir;
3341 dir = flags & wxNavigationKeyEvent::IsForward ? GTK_DIR_TAB_FORWARD
3342 : GTK_DIR_TAB_BACKWARD;
3343
3344 gboolean rc;
3345 g_signal_emit_by_name(parent->m_widget, "focus", dir, &rc);
3346
3347 return rc == TRUE;
3348 }
3349 }
3350
3351 bool wxWindowGTK::GTKWidgetNeedsMnemonic() const
3352 {
3353 // none needed by default
3354 return false;
3355 }
3356
3357 void wxWindowGTK::GTKWidgetDoSetMnemonic(GtkWidget* WXUNUSED(w))
3358 {
3359 // nothing to do by default since none is needed
3360 }
3361
3362 void wxWindowGTK::RealizeTabOrder()
3363 {
3364 if (m_wxwindow)
3365 {
3366 if ( !m_children.empty() )
3367 {
3368 // we don't only construct the correct focus chain but also use
3369 // this opportunity to update the mnemonic widgets for the widgets
3370 // that need them
3371
3372 GList *chain = NULL;
3373 wxWindowGTK* mnemonicWindow = NULL;
3374
3375 for ( wxWindowList::const_iterator i = m_children.begin();
3376 i != m_children.end();
3377 ++i )
3378 {
3379 wxWindowGTK *win = *i;
3380
3381 if ( mnemonicWindow )
3382 {
3383 if ( win->AcceptsFocusFromKeyboard() )
3384 {
3385 // wxComboBox et al. needs to focus on on a different
3386 // widget than m_widget, so if the main widget isn't
3387 // focusable try the connect widget
3388 GtkWidget* w = win->m_widget;
3389 if ( !GTK_WIDGET_CAN_FOCUS(w) )
3390 {
3391 w = win->GetConnectWidget();
3392 if ( !GTK_WIDGET_CAN_FOCUS(w) )
3393 w = NULL;
3394 }
3395
3396 if ( w )
3397 {
3398 mnemonicWindow->GTKWidgetDoSetMnemonic(w);
3399 mnemonicWindow = NULL;
3400 }
3401 }
3402 }
3403 else if ( win->GTKWidgetNeedsMnemonic() )
3404 {
3405 mnemonicWindow = win;
3406 }
3407
3408 chain = g_list_prepend(chain, win->m_widget);
3409 }
3410
3411 chain = g_list_reverse(chain);
3412
3413 gtk_container_set_focus_chain(GTK_CONTAINER(m_wxwindow), chain);
3414 g_list_free(chain);
3415 }
3416 else // no children
3417 {
3418 gtk_container_unset_focus_chain(GTK_CONTAINER(m_wxwindow));
3419 }
3420 }
3421 }
3422
3423 void wxWindowGTK::Raise()
3424 {
3425 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3426
3427 if (m_wxwindow && m_wxwindow->window)
3428 {
3429 gdk_window_raise( m_wxwindow->window );
3430 }
3431 else if (m_widget->window)
3432 {
3433 gdk_window_raise( m_widget->window );
3434 }
3435 }
3436
3437 void wxWindowGTK::Lower()
3438 {
3439 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3440
3441 if (m_wxwindow && m_wxwindow->window)
3442 {
3443 gdk_window_lower( m_wxwindow->window );
3444 }
3445 else if (m_widget->window)
3446 {
3447 gdk_window_lower( m_widget->window );
3448 }
3449 }
3450
3451 bool wxWindowGTK::SetCursor( const wxCursor &cursor )
3452 {
3453 if ( !wxWindowBase::SetCursor(cursor.Ok() ? cursor : *wxSTANDARD_CURSOR) )
3454 return false;
3455
3456 GTKUpdateCursor();
3457
3458 return true;
3459 }
3460
3461 void wxWindowGTK::GTKUpdateCursor()
3462 {
3463 wxCursor cursor(g_globalCursor.Ok() ? g_globalCursor : GetCursor());
3464 if ( cursor.Ok() )
3465 {
3466 wxArrayGdkWindows windowsThis;
3467 GdkWindow * const winThis = GTKGetWindow(windowsThis);
3468 if ( winThis )
3469 {
3470 gdk_window_set_cursor(winThis, cursor.GetCursor());
3471 }
3472 else
3473 {
3474 const size_t count = windowsThis.size();
3475 for ( size_t n = 0; n < count; n++ )
3476 {
3477 GdkWindow *win = windowsThis[n];
3478 if ( !win )
3479 {
3480 wxFAIL_MSG(wxT("NULL window returned by GTKGetWindow()?"));
3481 continue;
3482 }
3483
3484 gdk_window_set_cursor(win, cursor.GetCursor());
3485 }
3486 }
3487 }
3488 }
3489
3490 void wxWindowGTK::WarpPointer( int x, int y )
3491 {
3492 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3493
3494 // We provide this function ourselves as it is
3495 // missing in GDK (top of this file).
3496
3497 GdkWindow *window = NULL;
3498 if (m_wxwindow)
3499 window = m_wxwindow->window;
3500 else
3501 window = GetConnectWidget()->window;
3502
3503 if (window)
3504 gdk_window_warp_pointer( window, x, y );
3505 }
3506
3507 wxWindowGTK::ScrollDir wxWindowGTK::ScrollDirFromRange(GtkRange *range) const
3508 {
3509 // find the scrollbar which generated the event
3510 for ( int dir = 0; dir < ScrollDir_Max; dir++ )
3511 {
3512 if ( range == m_scrollBar[dir] )
3513 return (ScrollDir)dir;
3514 }
3515
3516 wxFAIL_MSG( wxT("event from unknown scrollbar received") );
3517
3518 return ScrollDir_Max;
3519 }
3520
3521 bool wxWindowGTK::DoScrollByUnits(ScrollDir dir, ScrollUnit unit, int units)
3522 {
3523 bool changed = false;
3524 GtkRange* range = m_scrollBar[dir];
3525 if ( range && units )
3526 {
3527 GtkAdjustment* adj = range->adjustment;
3528 gdouble inc = unit == ScrollUnit_Line ? adj->step_increment
3529 : adj->page_increment;
3530
3531 const int posOld = int(adj->value + 0.5);
3532 gtk_range_set_value(range, posOld + units*inc);
3533
3534 changed = int(adj->value + 0.5) != posOld;
3535 }
3536
3537 return changed;
3538 }
3539
3540 bool wxWindowGTK::ScrollLines(int lines)
3541 {
3542 return DoScrollByUnits(ScrollDir_Vert, ScrollUnit_Line, lines);
3543 }
3544
3545 bool wxWindowGTK::ScrollPages(int pages)
3546 {
3547 return DoScrollByUnits(ScrollDir_Vert, ScrollUnit_Page, pages);
3548 }
3549
3550 void wxWindowGTK::Refresh(bool WXUNUSED(eraseBackground),
3551 const wxRect *rect)
3552 {
3553 if ( !m_widget )
3554 {
3555 // it is valid to call Refresh() for a window which hasn't been created
3556 // yet, it simply doesn't do anything in this case
3557 return;
3558 }
3559
3560 if (!m_wxwindow)
3561 {
3562 if (rect)
3563 gtk_widget_queue_draw_area( m_widget, rect->x, rect->y, rect->width, rect->height );
3564 else
3565 gtk_widget_queue_draw( m_widget );
3566 }
3567 else
3568 {
3569 // Just return if the widget or one of its ancestors isn't mapped
3570 GtkWidget *w;
3571 for (w = m_wxwindow; w != NULL; w = w->parent)
3572 if (!GTK_WIDGET_MAPPED (w))
3573 return;
3574
3575 if (rect)
3576 {
3577 int x = rect->x;
3578 if (GetLayoutDirection() == wxLayout_RightToLeft)
3579 x = GetClientSize().x - x - rect->width;
3580 GdkRectangle r;
3581 r.x = rect->x;
3582 r.y = rect->y;
3583 r.width = rect->width;
3584 r.height = rect->height;
3585 gdk_window_invalidate_rect( m_wxwindow->window, &r, TRUE );
3586 }
3587 else
3588 gdk_window_invalidate_rect( m_wxwindow->window, NULL, TRUE );
3589 }
3590 }
3591
3592 void wxWindowGTK::Update()
3593 {
3594 if (m_widget && m_widget->window)
3595 {
3596 GdkDisplay* display = gtk_widget_get_display(m_widget);
3597 // Flush everything out to the server, and wait for it to finish.
3598 // This ensures nothing will overwrite the drawing we are about to do.
3599 gdk_display_sync(display);
3600
3601 gdk_window_process_updates(m_widget->window, TRUE);
3602
3603 // Flush again, but no need to wait for it to finish
3604 gdk_display_flush(display);
3605 }
3606 }
3607
3608 bool wxWindowGTK::DoIsExposed( int x, int y ) const
3609 {
3610 return m_updateRegion.Contains(x, y) != wxOutRegion;
3611 }
3612
3613 bool wxWindowGTK::DoIsExposed( int x, int y, int w, int h ) const
3614 {
3615 if (GetLayoutDirection() == wxLayout_RightToLeft)
3616 return m_updateRegion.Contains(x-w, y, w, h) != wxOutRegion;
3617 else
3618 return m_updateRegion.Contains(x, y, w, h) != wxOutRegion;
3619 }
3620
3621 void wxWindowGTK::GtkSendPaintEvents()
3622 {
3623 if (!m_wxwindow)
3624 {
3625 m_updateRegion.Clear();
3626 return;
3627 }
3628
3629 // Clip to paint region in wxClientDC
3630 m_clipPaintRegion = true;
3631
3632 m_nativeUpdateRegion = m_updateRegion;
3633
3634 if (GetLayoutDirection() == wxLayout_RightToLeft)
3635 {
3636 // Transform m_updateRegion under RTL
3637 m_updateRegion.Clear();
3638
3639 gint width;
3640 gdk_drawable_get_size(m_wxwindow->window, &width, NULL);
3641
3642 wxRegionIterator upd( m_nativeUpdateRegion );
3643 while (upd)
3644 {
3645 wxRect rect;
3646 rect.x = upd.GetX();
3647 rect.y = upd.GetY();
3648 rect.width = upd.GetWidth();
3649 rect.height = upd.GetHeight();
3650
3651 rect.x = width - rect.x - rect.width;
3652 m_updateRegion.Union( rect );
3653
3654 ++upd;
3655 }
3656 }
3657
3658 switch ( GetBackgroundStyle() )
3659 {
3660 case wxBG_STYLE_ERASE:
3661 {
3662 wxWindowDC dc( (wxWindow*)this );
3663 dc.SetDeviceClippingRegion( m_updateRegion );
3664
3665 // Work around gtk-qt <= 0.60 bug whereby the window colour
3666 // remains grey
3667 if ( UseBgCol() &&
3668 wxSystemOptions::
3669 GetOptionInt("gtk.window.force-background-colour") )
3670 {
3671 dc.SetBackground(GetBackgroundColour());
3672 dc.Clear();
3673 }
3674
3675 wxEraseEvent erase_event( GetId(), &dc );
3676 erase_event.SetEventObject( this );
3677
3678 if ( HandleWindowEvent(erase_event) )
3679 {
3680 // background erased, don't do it again
3681 break;
3682 }
3683 }
3684 // fall through
3685
3686 case wxBG_STYLE_SYSTEM:
3687 if ( GetThemeEnabled() )
3688 {
3689 // find ancestor from which to steal background
3690 wxWindow *parent = wxGetTopLevelParent((wxWindow *)this);
3691 if (!parent)
3692 parent = (wxWindow*)this;
3693
3694 if (GTK_WIDGET_MAPPED(parent->m_widget))
3695 {
3696 wxRegionIterator upd( m_nativeUpdateRegion );
3697 while (upd)
3698 {
3699 GdkRectangle rect;
3700 rect.x = upd.GetX();
3701 rect.y = upd.GetY();
3702 rect.width = upd.GetWidth();
3703 rect.height = upd.GetHeight();
3704
3705 gtk_paint_flat_box( parent->m_widget->style,
3706 m_wxwindow->window,
3707 (GtkStateType)GTK_WIDGET_STATE(m_wxwindow),
3708 GTK_SHADOW_NONE,
3709 &rect,
3710 parent->m_widget,
3711 (char *)"base",
3712 0, 0, -1, -1 );
3713
3714 ++upd;
3715 }
3716 }
3717 }
3718 break;
3719
3720 case wxBG_STYLE_PAINT:
3721 // nothing to do: window will be painted over in EVT_PAINT
3722 break;
3723
3724 default:
3725 wxFAIL_MSG( "unsupported background style" );
3726 }
3727
3728 wxNcPaintEvent nc_paint_event( GetId() );
3729 nc_paint_event.SetEventObject( this );
3730 HandleWindowEvent( nc_paint_event );
3731
3732 wxPaintEvent paint_event( GetId() );
3733 paint_event.SetEventObject( this );
3734 HandleWindowEvent( paint_event );
3735
3736 m_clipPaintRegion = false;
3737
3738 m_updateRegion.Clear();
3739 m_nativeUpdateRegion.Clear();
3740 }
3741
3742 void wxWindowGTK::SetDoubleBuffered( bool on )
3743 {
3744 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3745
3746 if ( m_wxwindow )
3747 gtk_widget_set_double_buffered( m_wxwindow, on );
3748 }
3749
3750 bool wxWindowGTK::IsDoubleBuffered() const
3751 {
3752 return GTK_WIDGET_DOUBLE_BUFFERED( m_wxwindow );
3753 }
3754
3755 void wxWindowGTK::ClearBackground()
3756 {
3757 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
3758 }
3759
3760 #if wxUSE_TOOLTIPS
3761 void wxWindowGTK::DoSetToolTip( wxToolTip *tip )
3762 {
3763 wxWindowBase::DoSetToolTip(tip);
3764
3765 if (m_tooltip)
3766 {
3767 m_tooltip->GTKApply( (wxWindow *)this );
3768 }
3769 else
3770 {
3771 GtkWidget *w = GetConnectWidget();
3772 wxToolTip::GTKApply(w, NULL);
3773 #if GTK_CHECK_VERSION(2, 12, 0)
3774 // Just applying NULL doesn't work on 2.12.0, so also use
3775 // gtk_widget_set_has_tooltip. It is part of the new GtkTooltip API
3776 // but seems also to work with the old GtkTooltips.
3777 if (gtk_check_version(2, 12, 0) == NULL)
3778 gtk_widget_set_has_tooltip(w, FALSE);
3779 #endif
3780 }
3781 }
3782
3783 void wxWindowGTK::GTKApplyToolTip( GtkTooltips *tips, const gchar *tip )
3784 {
3785 gtk_tooltips_set_tip(tips, GetConnectWidget(), tip, NULL);
3786 }
3787 #endif // wxUSE_TOOLTIPS
3788
3789 bool wxWindowGTK::SetBackgroundColour( const wxColour &colour )
3790 {
3791 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
3792
3793 if (!wxWindowBase::SetBackgroundColour(colour))
3794 return false;
3795
3796 if (colour.Ok())
3797 {
3798 // We need the pixel value e.g. for background clearing.
3799 m_backgroundColour.CalcPixel(gtk_widget_get_colormap(m_widget));
3800 }
3801
3802 // apply style change (forceStyle=true so that new style is applied
3803 // even if the bg colour changed from valid to wxNullColour)
3804 GTKApplyWidgetStyle(true);
3805
3806 return true;
3807 }
3808
3809 bool wxWindowGTK::SetForegroundColour( const wxColour &colour )
3810 {
3811 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
3812
3813 if (!wxWindowBase::SetForegroundColour(colour))
3814 {
3815 return false;
3816 }
3817
3818 if (colour.Ok())
3819 {
3820 // We need the pixel value e.g. for background clearing.
3821 m_foregroundColour.CalcPixel(gtk_widget_get_colormap(m_widget));
3822 }
3823
3824 // apply style change (forceStyle=true so that new style is applied
3825 // even if the bg colour changed from valid to wxNullColour):
3826 GTKApplyWidgetStyle(true);
3827
3828 return true;
3829 }
3830
3831 PangoContext *wxWindowGTK::GTKGetPangoDefaultContext()
3832 {
3833 return gtk_widget_get_pango_context( m_widget );
3834 }
3835
3836 GtkRcStyle *wxWindowGTK::GTKCreateWidgetStyle(bool forceStyle)
3837 {
3838 // do we need to apply any changes at all?
3839 if ( !forceStyle &&
3840 !m_font.Ok() &&
3841 !m_foregroundColour.Ok() && !m_backgroundColour.Ok() )
3842 {
3843 return NULL;
3844 }
3845
3846 GtkRcStyle *style = gtk_rc_style_new();
3847
3848 if ( m_font.Ok() )
3849 {
3850 style->font_desc =
3851 pango_font_description_copy( m_font.GetNativeFontInfo()->description );
3852 }
3853
3854 int flagsNormal = 0,
3855 flagsPrelight = 0,
3856 flagsActive = 0,
3857 flagsInsensitive = 0;
3858
3859 if ( m_foregroundColour.Ok() )
3860 {
3861 const GdkColor *fg = m_foregroundColour.GetColor();
3862
3863 style->fg[GTK_STATE_NORMAL] =
3864 style->text[GTK_STATE_NORMAL] = *fg;
3865 flagsNormal |= GTK_RC_FG | GTK_RC_TEXT;
3866
3867 style->fg[GTK_STATE_PRELIGHT] =
3868 style->text[GTK_STATE_PRELIGHT] = *fg;
3869 flagsPrelight |= GTK_RC_FG | GTK_RC_TEXT;
3870
3871 style->fg[GTK_STATE_ACTIVE] =
3872 style->text[GTK_STATE_ACTIVE] = *fg;
3873 flagsActive |= GTK_RC_FG | GTK_RC_TEXT;
3874 }
3875
3876 if ( m_backgroundColour.Ok() )
3877 {
3878 const GdkColor *bg = m_backgroundColour.GetColor();
3879
3880 style->bg[GTK_STATE_NORMAL] =
3881 style->base[GTK_STATE_NORMAL] = *bg;
3882 flagsNormal |= GTK_RC_BG | GTK_RC_BASE;
3883
3884 style->bg[GTK_STATE_PRELIGHT] =
3885 style->base[GTK_STATE_PRELIGHT] = *bg;
3886 flagsPrelight |= GTK_RC_BG | GTK_RC_BASE;
3887
3888 style->bg[GTK_STATE_ACTIVE] =
3889 style->base[GTK_STATE_ACTIVE] = *bg;
3890 flagsActive |= GTK_RC_BG | GTK_RC_BASE;
3891
3892 style->bg[GTK_STATE_INSENSITIVE] =
3893 style->base[GTK_STATE_INSENSITIVE] = *bg;
3894 flagsInsensitive |= GTK_RC_BG | GTK_RC_BASE;
3895 }
3896
3897 style->color_flags[GTK_STATE_NORMAL] = (GtkRcFlags)flagsNormal;
3898 style->color_flags[GTK_STATE_PRELIGHT] = (GtkRcFlags)flagsPrelight;
3899 style->color_flags[GTK_STATE_ACTIVE] = (GtkRcFlags)flagsActive;
3900 style->color_flags[GTK_STATE_INSENSITIVE] = (GtkRcFlags)flagsInsensitive;
3901
3902 return style;
3903 }
3904
3905 void wxWindowGTK::GTKApplyWidgetStyle(bool forceStyle)
3906 {
3907 GtkRcStyle *style = GTKCreateWidgetStyle(forceStyle);
3908 if ( style )
3909 {
3910 DoApplyWidgetStyle(style);
3911 gtk_rc_style_unref(style);
3912 }
3913
3914 // Style change may affect GTK+'s size calculation:
3915 InvalidateBestSize();
3916 }
3917
3918 void wxWindowGTK::DoApplyWidgetStyle(GtkRcStyle *style)
3919 {
3920 wxSuspendStyleEvents s(static_cast<wxWindow*>(this));
3921
3922 if (m_wxwindow)
3923 gtk_widget_modify_style(m_wxwindow, style);
3924 else
3925 gtk_widget_modify_style(m_widget, style);
3926 }
3927
3928 bool wxWindowGTK::SetBackgroundStyle(wxBackgroundStyle style)
3929 {
3930 wxWindowBase::SetBackgroundStyle(style);
3931
3932 if ( style == wxBG_STYLE_PAINT )
3933 {
3934 GdkWindow *window;
3935 if ( m_wxwindow )
3936 {
3937 window = m_wxwindow->window;
3938 }
3939 else
3940 {
3941 GtkWidget * const w = GetConnectWidget();
3942 window = w ? w->window : NULL;
3943 }
3944
3945 if (window)
3946 {
3947 // Make sure GDK/X11 doesn't refresh the window
3948 // automatically.
3949 gdk_window_set_back_pixmap( window, None, False );
3950 #ifdef __X__
3951 Display* display = GDK_WINDOW_DISPLAY(window);
3952 XFlush(display);
3953 #endif
3954 m_needsStyleChange = false;
3955 }
3956 else // window not realized yet
3957 {
3958 // Do in OnIdle, because the window is not yet available
3959 m_needsStyleChange = true;
3960 }
3961
3962 // Don't apply widget style, or we get a grey background
3963 }
3964 else
3965 {
3966 // apply style change (forceStyle=true so that new style is applied
3967 // even if the bg colour changed from valid to wxNullColour):
3968 GTKApplyWidgetStyle(true);
3969 }
3970
3971 return true;
3972 }
3973
3974 // ----------------------------------------------------------------------------
3975 // Pop-up menu stuff
3976 // ----------------------------------------------------------------------------
3977
3978 #if wxUSE_MENUS_NATIVE
3979
3980 static void SetInvokingWindow( wxMenu *menu, wxWindow* win )
3981 {
3982 menu->SetInvokingWindow( win );
3983
3984 wxMenuItemList::compatibility_iterator node = menu->GetMenuItems().GetFirst();
3985 while (node)
3986 {
3987 wxMenuItem *menuitem = node->GetData();
3988 if (menuitem->IsSubMenu())
3989 {
3990 SetInvokingWindow( menuitem->GetSubMenu(), win );
3991 }
3992
3993 node = node->GetNext();
3994 }
3995 }
3996
3997 extern "C" {
3998 static
3999 void wxPopupMenuPositionCallback( GtkMenu *menu,
4000 gint *x, gint *y,
4001 gboolean * WXUNUSED(whatever),
4002 gpointer user_data )
4003 {
4004 // ensure that the menu appears entirely on screen
4005 GtkRequisition req;
4006 gtk_widget_get_child_requisition(GTK_WIDGET(menu), &req);
4007
4008 wxSize sizeScreen = wxGetDisplaySize();
4009 wxPoint *pos = (wxPoint*)user_data;
4010
4011 gint xmax = sizeScreen.x - req.width,
4012 ymax = sizeScreen.y - req.height;
4013
4014 *x = pos->x < xmax ? pos->x : xmax;
4015 *y = pos->y < ymax ? pos->y : ymax;
4016 }
4017 }
4018
4019 bool wxWindowGTK::DoPopupMenu( wxMenu *menu, int x, int y )
4020 {
4021 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
4022
4023 wxCHECK_MSG( menu != NULL, false, wxT("invalid popup-menu") );
4024
4025 SetInvokingWindow( menu, this );
4026
4027 menu->UpdateUI();
4028
4029 wxPoint pos;
4030 gpointer userdata;
4031 GtkMenuPositionFunc posfunc;
4032 if ( x == -1 && y == -1 )
4033 {
4034 // use GTK's default positioning algorithm
4035 userdata = NULL;
4036 posfunc = NULL;
4037 }
4038 else
4039 {
4040 pos = ClientToScreen(wxPoint(x, y));
4041 userdata = &pos;
4042 posfunc = wxPopupMenuPositionCallback;
4043 }
4044
4045 menu->m_popupShown = true;
4046 gtk_menu_popup(
4047 GTK_MENU(menu->m_menu),
4048 NULL, // parent menu shell
4049 NULL, // parent menu item
4050 posfunc, // function to position it
4051 userdata, // client data
4052 0, // button used to activate it
4053 gtk_get_current_event_time()
4054 );
4055
4056 while (menu->m_popupShown)
4057 {
4058 gtk_main_iteration();
4059 }
4060
4061 return true;
4062 }
4063
4064 #endif // wxUSE_MENUS_NATIVE
4065
4066 #if wxUSE_DRAG_AND_DROP
4067
4068 void wxWindowGTK::SetDropTarget( wxDropTarget *dropTarget )
4069 {
4070 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4071
4072 GtkWidget *dnd_widget = GetConnectWidget();
4073
4074 if (m_dropTarget) m_dropTarget->GtkUnregisterWidget( dnd_widget );
4075
4076 if (m_dropTarget) delete m_dropTarget;
4077 m_dropTarget = dropTarget;
4078
4079 if (m_dropTarget) m_dropTarget->GtkRegisterWidget( dnd_widget );
4080 }
4081
4082 #endif // wxUSE_DRAG_AND_DROP
4083
4084 GtkWidget* wxWindowGTK::GetConnectWidget()
4085 {
4086 GtkWidget *connect_widget = m_widget;
4087 if (m_wxwindow) connect_widget = m_wxwindow;
4088
4089 return connect_widget;
4090 }
4091
4092 bool wxWindowGTK::GTKIsOwnWindow(GdkWindow *window) const
4093 {
4094 wxArrayGdkWindows windowsThis;
4095 GdkWindow * const winThis = GTKGetWindow(windowsThis);
4096
4097 return winThis ? window == winThis
4098 : windowsThis.Index(window) != wxNOT_FOUND;
4099 }
4100
4101 GdkWindow *wxWindowGTK::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
4102 {
4103 return m_wxwindow ? m_wxwindow->window : m_widget->window;
4104 }
4105
4106 bool wxWindowGTK::SetFont( const wxFont &font )
4107 {
4108 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
4109
4110 if (!wxWindowBase::SetFont(font))
4111 return false;
4112
4113 // apply style change (forceStyle=true so that new style is applied
4114 // even if the font changed from valid to wxNullFont):
4115 GTKApplyWidgetStyle(true);
4116
4117 return true;
4118 }
4119
4120 void wxWindowGTK::DoCaptureMouse()
4121 {
4122 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4123
4124 GdkWindow *window = NULL;
4125 if (m_wxwindow)
4126 window = m_wxwindow->window;
4127 else
4128 window = GetConnectWidget()->window;
4129
4130 wxCHECK_RET( window, wxT("CaptureMouse() failed") );
4131
4132 const wxCursor* cursor = &m_cursor;
4133 if (!cursor->Ok())
4134 cursor = wxSTANDARD_CURSOR;
4135
4136 gdk_pointer_grab( window, FALSE,
4137 (GdkEventMask)
4138 (GDK_BUTTON_PRESS_MASK |
4139 GDK_BUTTON_RELEASE_MASK |
4140 GDK_POINTER_MOTION_HINT_MASK |
4141 GDK_POINTER_MOTION_MASK),
4142 NULL,
4143 cursor->GetCursor(),
4144 (guint32)GDK_CURRENT_TIME );
4145 g_captureWindow = this;
4146 g_captureWindowHasMouse = true;
4147 }
4148
4149 void wxWindowGTK::DoReleaseMouse()
4150 {
4151 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4152
4153 wxCHECK_RET( g_captureWindow, wxT("can't release mouse - not captured") );
4154
4155 g_captureWindow = NULL;
4156
4157 GdkWindow *window = NULL;
4158 if (m_wxwindow)
4159 window = m_wxwindow->window;
4160 else
4161 window = GetConnectWidget()->window;
4162
4163 if (!window)
4164 return;
4165
4166 gdk_pointer_ungrab ( (guint32)GDK_CURRENT_TIME );
4167 }
4168
4169 void wxWindowGTK::GTKReleaseMouseAndNotify()
4170 {
4171 DoReleaseMouse();
4172 wxMouseCaptureLostEvent evt(GetId());
4173 evt.SetEventObject( this );
4174 HandleWindowEvent( evt );
4175 }
4176
4177 /* static */
4178 wxWindow *wxWindowBase::GetCapture()
4179 {
4180 return (wxWindow *)g_captureWindow;
4181 }
4182
4183 bool wxWindowGTK::IsRetained() const
4184 {
4185 return false;
4186 }
4187
4188 void wxWindowGTK::SetScrollbar(int orient,
4189 int pos,
4190 int thumbVisible,
4191 int range,
4192 bool WXUNUSED(update))
4193 {
4194 const int dir = ScrollDirFromOrient(orient);
4195 GtkRange* const sb = m_scrollBar[dir];
4196 wxCHECK_RET( sb, wxT("this window is not scrollable") );
4197
4198 if (range <= 0)
4199 {
4200 // GtkRange requires upper > lower
4201 range =
4202 thumbVisible = 1;
4203 }
4204
4205 GtkAdjustment * const adj = sb->adjustment;
4206 adj->step_increment = 1;
4207 adj->page_increment =
4208 adj->page_size = thumbVisible;
4209 adj->value = pos;
4210
4211 g_signal_handlers_block_by_func(
4212 sb, (void*)gtk_scrollbar_value_changed, this);
4213
4214 gtk_range_set_range(sb, 0, range);
4215 m_scrollPos[dir] = sb->adjustment->value;
4216
4217 g_signal_handlers_unblock_by_func(
4218 sb, (void*)gtk_scrollbar_value_changed, this);
4219 }
4220
4221 void wxWindowGTK::SetScrollPos(int orient, int pos, bool WXUNUSED(refresh))
4222 {
4223 const int dir = ScrollDirFromOrient(orient);
4224 GtkRange * const sb = m_scrollBar[dir];
4225 wxCHECK_RET( sb, wxT("this window is not scrollable") );
4226
4227 // This check is more than an optimization. Without it, the slider
4228 // will not move smoothly while tracking when using wxScrollHelper.
4229 if (GetScrollPos(orient) != pos)
4230 {
4231 g_signal_handlers_block_by_func(
4232 sb, (void*)gtk_scrollbar_value_changed, this);
4233
4234 gtk_range_set_value(sb, pos);
4235 m_scrollPos[dir] = sb->adjustment->value;
4236
4237 g_signal_handlers_unblock_by_func(
4238 sb, (void*)gtk_scrollbar_value_changed, this);
4239 }
4240 }
4241
4242 int wxWindowGTK::GetScrollThumb(int orient) const
4243 {
4244 GtkRange * const sb = m_scrollBar[ScrollDirFromOrient(orient)];
4245 wxCHECK_MSG( sb, 0, wxT("this window is not scrollable") );
4246
4247 return wxRound(sb->adjustment->page_size);
4248 }
4249
4250 int wxWindowGTK::GetScrollPos( int orient ) const
4251 {
4252 GtkRange * const sb = m_scrollBar[ScrollDirFromOrient(orient)];
4253 wxCHECK_MSG( sb, 0, wxT("this window is not scrollable") );
4254
4255 return wxRound(sb->adjustment->value);
4256 }
4257
4258 int wxWindowGTK::GetScrollRange( int orient ) const
4259 {
4260 GtkRange * const sb = m_scrollBar[ScrollDirFromOrient(orient)];
4261 wxCHECK_MSG( sb, 0, wxT("this window is not scrollable") );
4262
4263 return wxRound(sb->adjustment->upper);
4264 }
4265
4266 // Determine if increment is the same as +/-x, allowing for some small
4267 // difference due to possible inexactness in floating point arithmetic
4268 static inline bool IsScrollIncrement(double increment, double x)
4269 {
4270 wxASSERT(increment > 0);
4271 const double tolerance = 1.0 / 1024;
4272 return fabs(increment - fabs(x)) < tolerance;
4273 }
4274
4275 wxEventType wxWindowGTK::GTKGetScrollEventType(GtkRange* range)
4276 {
4277 wxASSERT(range == m_scrollBar[0] || range == m_scrollBar[1]);
4278
4279 const int barIndex = range == m_scrollBar[1];
4280 GtkAdjustment* adj = range->adjustment;
4281
4282 const int value = wxRound(adj->value);
4283
4284 // save previous position
4285 const double oldPos = m_scrollPos[barIndex];
4286 // update current position
4287 m_scrollPos[barIndex] = adj->value;
4288 // If event should be ignored, or integral position has not changed
4289 if (!m_hasVMT || g_blockEventsOnDrag || value == wxRound(oldPos))
4290 {
4291 return wxEVT_NULL;
4292 }
4293
4294 wxEventType eventType = wxEVT_SCROLL_THUMBTRACK;
4295 if (!m_isScrolling)
4296 {
4297 // Difference from last change event
4298 const double diff = adj->value - oldPos;
4299 const bool isDown = diff > 0;
4300
4301 if (IsScrollIncrement(adj->step_increment, diff))
4302 {
4303 eventType = isDown ? wxEVT_SCROLL_LINEDOWN : wxEVT_SCROLL_LINEUP;
4304 }
4305 else if (IsScrollIncrement(adj->page_increment, diff))
4306 {
4307 eventType = isDown ? wxEVT_SCROLL_PAGEDOWN : wxEVT_SCROLL_PAGEUP;
4308 }
4309 else if (m_mouseButtonDown)
4310 {
4311 // Assume track event
4312 m_isScrolling = true;
4313 }
4314 }
4315 return eventType;
4316 }
4317
4318 void wxWindowGTK::ScrollWindow( int dx, int dy, const wxRect* WXUNUSED(rect) )
4319 {
4320 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4321
4322 wxCHECK_RET( m_wxwindow != NULL, wxT("window needs client area for scrolling") );
4323
4324 // No scrolling requested.
4325 if ((dx == 0) && (dy == 0)) return;
4326
4327 m_clipPaintRegion = true;
4328
4329 WX_PIZZA(m_wxwindow)->scroll(dx, dy);
4330
4331 m_clipPaintRegion = false;
4332
4333 #if wxUSE_CARET
4334 bool restoreCaret = (GetCaret() != NULL && GetCaret()->IsVisible());
4335 if (restoreCaret)
4336 {
4337 wxRect caretRect(GetCaret()->GetPosition(), GetCaret()->GetSize());
4338 if (dx > 0)
4339 caretRect.width += dx;
4340 else
4341 {
4342 caretRect.x += dx; caretRect.width -= dx;
4343 }
4344 if (dy > 0)
4345 caretRect.height += dy;
4346 else
4347 {
4348 caretRect.y += dy; caretRect.height -= dy;
4349 }
4350
4351 RefreshRect(caretRect);
4352 }
4353 #endif // wxUSE_CARET
4354 }
4355
4356 void wxWindowGTK::GTKScrolledWindowSetBorder(GtkWidget* w, int wxstyle)
4357 {
4358 //RN: Note that static controls usually have no border on gtk, so maybe
4359 //it makes sense to treat that as simply no border at the wx level
4360 //as well...
4361 if (!(wxstyle & wxNO_BORDER) && !(wxstyle & wxBORDER_STATIC))
4362 {
4363 GtkShadowType gtkstyle;
4364
4365 if(wxstyle & wxBORDER_RAISED)
4366 gtkstyle = GTK_SHADOW_OUT;
4367 else if (wxstyle & wxBORDER_SUNKEN)
4368 gtkstyle = GTK_SHADOW_IN;
4369 #if 0
4370 // Now obsolete
4371 else if (wxstyle & wxBORDER_DOUBLE)
4372 gtkstyle = GTK_SHADOW_ETCHED_IN;
4373 #endif
4374 else //default
4375 gtkstyle = GTK_SHADOW_IN;
4376
4377 gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(w),
4378 gtkstyle );
4379 }
4380 }
4381
4382 void wxWindowGTK::SetWindowStyleFlag( long style )
4383 {
4384 // Updates the internal variable. NB: Now m_windowStyle bits carry the _new_ style values already
4385 wxWindowBase::SetWindowStyleFlag(style);
4386 }
4387
4388 // Find the wxWindow at the current mouse position, also returning the mouse
4389 // position.
4390 wxWindow* wxFindWindowAtPointer(wxPoint& pt)
4391 {
4392 pt = wxGetMousePosition();
4393 wxWindow* found = wxFindWindowAtPoint(pt);
4394 return found;
4395 }
4396
4397 // Get the current mouse position.
4398 wxPoint wxGetMousePosition()
4399 {
4400 /* This crashes when used within wxHelpContext,
4401 so we have to use the X-specific implementation below.
4402 gint x, y;
4403 GdkModifierType *mask;
4404 (void) gdk_window_get_pointer(NULL, &x, &y, mask);
4405
4406 return wxPoint(x, y);
4407 */
4408
4409 int x, y;
4410 GdkWindow* windowAtPtr = gdk_window_at_pointer(& x, & y);
4411
4412 Display *display = windowAtPtr ? GDK_WINDOW_XDISPLAY(windowAtPtr) : GDK_DISPLAY();
4413 Window rootWindow = RootWindowOfScreen (DefaultScreenOfDisplay(display));
4414 Window rootReturn, childReturn;
4415 int rootX, rootY, winX, winY;
4416 unsigned int maskReturn;
4417
4418 XQueryPointer (display,
4419 rootWindow,
4420 &rootReturn,
4421 &childReturn,
4422 &rootX, &rootY, &winX, &winY, &maskReturn);
4423 return wxPoint(rootX, rootY);
4424
4425 }
4426
4427 GdkWindow* wxWindowGTK::GTKGetDrawingWindow() const
4428 {
4429 GdkWindow* window = NULL;
4430 if (m_wxwindow)
4431 window = m_wxwindow->window;
4432 return window;
4433 }
4434
4435 // ----------------------------------------------------------------------------
4436 // freeze/thaw
4437 // ----------------------------------------------------------------------------
4438
4439 extern "C"
4440 {
4441
4442 // this is called if we attempted to freeze unrealized widget when it finally
4443 // is realized (and so can be frozen):
4444 static void wx_frozen_widget_realize(GtkWidget* w, void* WXUNUSED(data))
4445 {
4446 wxASSERT( w && !GTK_WIDGET_NO_WINDOW(w) );
4447 wxASSERT( GTK_WIDGET_REALIZED(w) );
4448
4449 g_signal_handlers_disconnect_by_func
4450 (
4451 w,
4452 (void*)wx_frozen_widget_realize,
4453 NULL
4454 );
4455
4456 gdk_window_freeze_updates(w->window);
4457 }
4458
4459 } // extern "C"
4460
4461 void wxWindowGTK::GTKFreezeWidget(GtkWidget *w)
4462 {
4463 if ( !w || GTK_WIDGET_NO_WINDOW(w) )
4464 return; // window-less widget, cannot be frozen
4465
4466 if ( !GTK_WIDGET_REALIZED(w) )
4467 {
4468 // we can't thaw unrealized widgets because they don't have GdkWindow,
4469 // so set it up to be done immediately after realization:
4470 g_signal_connect_after
4471 (
4472 w,
4473 "realize",
4474 G_CALLBACK(wx_frozen_widget_realize),
4475 NULL
4476 );
4477 return;
4478 }
4479
4480 gdk_window_freeze_updates(w->window);
4481 }
4482
4483 void wxWindowGTK::GTKThawWidget(GtkWidget *w)
4484 {
4485 if ( !w || GTK_WIDGET_NO_WINDOW(w) )
4486 return; // window-less widget, cannot be frozen
4487
4488 if ( !GTK_WIDGET_REALIZED(w) )
4489 {
4490 // the widget wasn't realized yet, no need to thaw
4491 g_signal_handlers_disconnect_by_func
4492 (
4493 w,
4494 (void*)wx_frozen_widget_realize,
4495 NULL
4496 );
4497 return;
4498 }
4499
4500 gdk_window_thaw_updates(w->window);
4501 }
4502
4503 void wxWindowGTK::DoFreeze()
4504 {
4505 GTKFreezeWidget(m_widget);
4506 if ( m_wxwindow && m_widget != m_wxwindow )
4507 GTKFreezeWidget(m_wxwindow);
4508 }
4509
4510 void wxWindowGTK::DoThaw()
4511 {
4512 GTKThawWidget(m_widget);
4513 if ( m_wxwindow && m_widget != m_wxwindow )
4514 GTKThawWidget(m_wxwindow);
4515 }
wxWidgets (Impactor)