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