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Respect that GTK+ wants to have space between scrollbar and client area
[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 // make it extern because wxStaticText needs to disconnect this one
261 extern "C" {
262 void 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 style &= ~wxBORDER_MASK;
2099 style |= border;
2100
2101 if (!PreCreation( parent, pos, size ) ||
2102 !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
2103 {
2104 wxFAIL_MSG( wxT("wxWindowGTK creation failed") );
2105 return false;
2106 }
2107
2108
2109 m_wxwindow = wxPizza::New(m_windowStyle);
2110 #ifndef __WXUNIVERSAL__
2111 if (HasFlag(wxPizza::BORDER_STYLES))
2112 {
2113 g_signal_connect(m_wxwindow, "parent_set",
2114 G_CALLBACK(parent_set), this);
2115 }
2116 #endif
2117 if (!HasFlag(wxHSCROLL) && !HasFlag(wxVSCROLL))
2118 m_widget = m_wxwindow;
2119 else
2120 {
2121 m_widget = gtk_scrolled_window_new( NULL, NULL );
2122
2123 GtkScrolledWindow *scrolledWindow = GTK_SCROLLED_WINDOW(m_widget);
2124
2125 // We should accept the native look
2126 #if 0
2127 GtkScrolledWindowClass *scroll_class = GTK_SCROLLED_WINDOW_CLASS( GTK_OBJECT_GET_CLASS(m_widget) );
2128 scroll_class->scrollbar_spacing = 0;
2129 #endif
2130
2131 // There is a conflict with default bindings at GTK+
2132 // level between scrolled windows and notebooks both of which want to use
2133 // Ctrl-PageUp/Down: scrolled windows for scrolling in the horizontal
2134 // direction and notebooks for changing pages -- we decide that if we don't
2135 // have wxHSCROLL style we can safely sacrifice horizontal scrolling if it
2136 // means we can get working keyboard navigation in notebooks
2137 if ( !HasFlag(wxHSCROLL) )
2138 {
2139 GtkBindingSet *
2140 bindings = gtk_binding_set_by_class(G_OBJECT_GET_CLASS(m_widget));
2141 if ( bindings )
2142 {
2143 gtk_binding_entry_remove(bindings, GDK_Page_Up, GDK_CONTROL_MASK);
2144 gtk_binding_entry_remove(bindings, GDK_Page_Down, GDK_CONTROL_MASK);
2145 }
2146 }
2147
2148 if (HasFlag(wxALWAYS_SHOW_SB))
2149 {
2150 gtk_scrolled_window_set_policy( scrolledWindow, GTK_POLICY_ALWAYS, GTK_POLICY_ALWAYS );
2151
2152 scrolledWindow->hscrollbar_visible = TRUE;
2153 scrolledWindow->vscrollbar_visible = TRUE;
2154 }
2155 else
2156 {
2157 gtk_scrolled_window_set_policy( scrolledWindow, GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
2158 }
2159
2160 m_scrollBar[ScrollDir_Horz] = GTK_RANGE(scrolledWindow->hscrollbar);
2161 m_scrollBar[ScrollDir_Vert] = GTK_RANGE(scrolledWindow->vscrollbar);
2162 if (GetLayoutDirection() == wxLayout_RightToLeft)
2163 gtk_range_set_inverted( m_scrollBar[ScrollDir_Horz], TRUE );
2164
2165 gtk_container_add( GTK_CONTAINER(m_widget), m_wxwindow );
2166
2167 // connect various scroll-related events
2168 for ( int dir = 0; dir < ScrollDir_Max; dir++ )
2169 {
2170 // these handlers block mouse events to any window during scrolling
2171 // such as motion events and prevent GTK and wxWidgets from fighting
2172 // over where the slider should be
2173 g_signal_connect(m_scrollBar[dir], "button_press_event",
2174 G_CALLBACK(gtk_scrollbar_button_press_event), this);
2175 g_signal_connect(m_scrollBar[dir], "button_release_event",
2176 G_CALLBACK(gtk_scrollbar_button_release_event), this);
2177
2178 gulong handler_id = g_signal_connect(m_scrollBar[dir], "event_after",
2179 G_CALLBACK(gtk_scrollbar_event_after), this);
2180 g_signal_handler_block(m_scrollBar[dir], handler_id);
2181
2182 // these handlers get notified when scrollbar slider moves
2183 g_signal_connect_after(m_scrollBar[dir], "value_changed",
2184 G_CALLBACK(gtk_scrollbar_value_changed), this);
2185 }
2186
2187 gtk_widget_show( m_wxwindow );
2188 }
2189 g_object_ref(m_widget);
2190
2191 if (m_parent)
2192 m_parent->DoAddChild( this );
2193
2194 m_focusWidget = m_wxwindow;
2195
2196 SetCanFocus(AcceptsFocus());
2197
2198 PostCreation();
2199
2200 return true;
2201 }
2202
2203 wxWindowGTK::~wxWindowGTK()
2204 {
2205 SendDestroyEvent();
2206
2207 if (gs_currentFocus == this)
2208 gs_currentFocus = NULL;
2209 if (gs_pendingFocus == this)
2210 gs_pendingFocus = NULL;
2211
2212 if ( gs_deferredFocusOut == this )
2213 gs_deferredFocusOut = NULL;
2214
2215 m_hasVMT = false;
2216
2217 // destroy children before destroying this window itself
2218 DestroyChildren();
2219
2220 // unhook focus handlers to prevent stray events being
2221 // propagated to this (soon to be) dead object
2222 if (m_focusWidget != NULL)
2223 {
2224 g_signal_handlers_disconnect_by_func (m_focusWidget,
2225 (gpointer) gtk_window_focus_in_callback,
2226 this);
2227 g_signal_handlers_disconnect_by_func (m_focusWidget,
2228 (gpointer) gtk_window_focus_out_callback,
2229 this);
2230 }
2231
2232 if (m_widget)
2233 Show( false );
2234
2235 // delete before the widgets to avoid a crash on solaris
2236 delete m_imData;
2237
2238 if (m_widget)
2239 {
2240 // Note that gtk_widget_destroy() does not destroy the widget, it just
2241 // emits the "destroy" signal. The widget is not actually destroyed
2242 // until its reference count drops to zero.
2243 gtk_widget_destroy(m_widget);
2244 // Release our reference, should be the last one
2245 g_object_unref(m_widget);
2246 m_widget = NULL;
2247 }
2248 m_wxwindow = NULL;
2249 }
2250
2251 bool wxWindowGTK::PreCreation( wxWindowGTK *parent, const wxPoint &pos, const wxSize &size )
2252 {
2253 if ( GTKNeedsParent() )
2254 {
2255 wxCHECK_MSG( parent, false, wxT("Must have non-NULL parent") );
2256 }
2257
2258 // Use either the given size, or the default if -1 is given.
2259 // See wxWindowBase for these functions.
2260 m_width = WidthDefault(size.x) ;
2261 m_height = HeightDefault(size.y);
2262
2263 m_x = (int)pos.x;
2264 m_y = (int)pos.y;
2265
2266 return true;
2267 }
2268
2269 void wxWindowGTK::PostCreation()
2270 {
2271 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
2272
2273 if (m_wxwindow)
2274 {
2275 if (!m_noExpose)
2276 {
2277 // these get reported to wxWidgets -> wxPaintEvent
2278
2279 g_signal_connect (m_wxwindow, "expose_event",
2280 G_CALLBACK (gtk_window_expose_callback), this);
2281
2282 if (GetLayoutDirection() == wxLayout_LeftToRight)
2283 gtk_widget_set_redraw_on_allocate(m_wxwindow, HasFlag(wxFULL_REPAINT_ON_RESIZE));
2284 }
2285
2286 // Create input method handler
2287 m_imData = new wxGtkIMData;
2288
2289 // Cannot handle drawing preedited text yet
2290 gtk_im_context_set_use_preedit( m_imData->context, FALSE );
2291
2292 g_signal_connect (m_imData->context, "commit",
2293 G_CALLBACK (gtk_wxwindow_commit_cb), this);
2294 }
2295
2296 // focus handling
2297
2298 if (!GTK_IS_WINDOW(m_widget))
2299 {
2300 if (m_focusWidget == NULL)
2301 m_focusWidget = m_widget;
2302
2303 if (m_wxwindow)
2304 {
2305 g_signal_connect (m_focusWidget, "focus_in_event",
2306 G_CALLBACK (gtk_window_focus_in_callback), this);
2307 g_signal_connect (m_focusWidget, "focus_out_event",
2308 G_CALLBACK (gtk_window_focus_out_callback), this);
2309 }
2310 else
2311 {
2312 g_signal_connect_after (m_focusWidget, "focus_in_event",
2313 G_CALLBACK (gtk_window_focus_in_callback), this);
2314 g_signal_connect_after (m_focusWidget, "focus_out_event",
2315 G_CALLBACK (gtk_window_focus_out_callback), this);
2316 }
2317 }
2318
2319 if ( !AcceptsFocusFromKeyboard() )
2320 {
2321 SetCanFocus(false);
2322
2323 g_signal_connect(m_widget, "focus",
2324 G_CALLBACK(wx_window_focus_callback), this);
2325 }
2326
2327 // connect to the various key and mouse handlers
2328
2329 GtkWidget *connect_widget = GetConnectWidget();
2330
2331 ConnectWidget( connect_widget );
2332
2333 /* We cannot set colours, fonts and cursors before the widget has
2334 been realized, so we do this directly after realization */
2335 g_signal_connect (connect_widget, "realize",
2336 G_CALLBACK (gtk_window_realized_callback), this);
2337
2338 if (!IsTopLevel())
2339 {
2340 g_signal_connect(m_wxwindow ? m_wxwindow : m_widget, "size_allocate",
2341 G_CALLBACK(size_allocate), this);
2342 }
2343
2344 if (m_wxwindow)
2345 {
2346 #if GTK_CHECK_VERSION(2, 8, 0)
2347 if (!gtk_check_version(2,8,0))
2348 {
2349 // Make sure we can notify the app when mouse capture is lost
2350 g_signal_connect (m_wxwindow, "grab_broken_event",
2351 G_CALLBACK (gtk_window_grab_broken), this);
2352 }
2353 #endif
2354 }
2355
2356 if ( connect_widget != m_wxwindow )
2357 {
2358 #if GTK_CHECK_VERSION(2, 8, 0)
2359 if (!gtk_check_version(2,8,0))
2360 {
2361 // Make sure we can notify app code when mouse capture is lost
2362 g_signal_connect (connect_widget, "grab_broken_event",
2363 G_CALLBACK (gtk_window_grab_broken), this);
2364 }
2365 #endif
2366 }
2367
2368 #ifdef GTK_IS_FILE_CHOOSER_BUTTON
2369 if (!gtk_check_version(2,6,0) && GTK_IS_FILE_CHOOSER_BUTTON(m_widget))
2370 {
2371 // If we connect to the "size_request" signal of a GtkFileChooserButton
2372 // then that control won't be sized properly when placed inside sizers
2373 // (this can be tested removing this elseif and running XRC or WIDGETS samples)
2374 // FIXME: what should be done here ?
2375 } else
2376 #endif
2377 if ( !IsTopLevel() ) // top level windows use their own callback
2378 {
2379 // This is needed if we want to add our windows into native
2380 // GTK controls, such as the toolbar. With this callback, the
2381 // toolbar gets to know the correct size (the one set by the
2382 // programmer). Sadly, it misbehaves for wxComboBox.
2383 g_signal_connect (m_widget, "size_request",
2384 G_CALLBACK (wxgtk_window_size_request_callback),
2385 this);
2386 }
2387
2388 InheritAttributes();
2389
2390 m_hasVMT = true;
2391
2392 SetLayoutDirection(wxLayout_Default);
2393
2394 // unless the window was created initially hidden (i.e. Hide() had been
2395 // called before Create()), we should show it at GTK+ level as well
2396 if ( IsShown() )
2397 gtk_widget_show( m_widget );
2398 }
2399
2400 void wxWindowGTK::ConnectWidget( GtkWidget *widget )
2401 {
2402 g_signal_connect (widget, "key_press_event",
2403 G_CALLBACK (gtk_window_key_press_callback), this);
2404 g_signal_connect (widget, "key_release_event",
2405 G_CALLBACK (gtk_window_key_release_callback), this);
2406 g_signal_connect (widget, "button_press_event",
2407 G_CALLBACK (gtk_window_button_press_callback), this);
2408 g_signal_connect (widget, "button_release_event",
2409 G_CALLBACK (gtk_window_button_release_callback), this);
2410 g_signal_connect (widget, "motion_notify_event",
2411 G_CALLBACK (gtk_window_motion_notify_callback), this);
2412
2413 g_signal_connect (widget, "scroll_event",
2414 G_CALLBACK (window_scroll_event), this);
2415 if (m_scrollBar[ScrollDir_Horz])
2416 g_signal_connect (m_scrollBar[ScrollDir_Horz], "scroll_event",
2417 G_CALLBACK (window_scroll_event_hscrollbar), this);
2418 if (m_scrollBar[ScrollDir_Vert])
2419 g_signal_connect (m_scrollBar[ScrollDir_Vert], "scroll_event",
2420 G_CALLBACK (window_scroll_event), this);
2421
2422 g_signal_connect (widget, "popup_menu",
2423 G_CALLBACK (wxgtk_window_popup_menu_callback), this);
2424 g_signal_connect (widget, "enter_notify_event",
2425 G_CALLBACK (gtk_window_enter_callback), this);
2426 g_signal_connect (widget, "leave_notify_event",
2427 G_CALLBACK (gtk_window_leave_callback), this);
2428
2429 if (IsTopLevel() && m_wxwindow)
2430 g_signal_connect (m_wxwindow, "style_set",
2431 G_CALLBACK (gtk_window_style_set_callback), this);
2432 }
2433
2434 bool wxWindowGTK::Destroy()
2435 {
2436 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
2437
2438 m_hasVMT = false;
2439
2440 return wxWindowBase::Destroy();
2441 }
2442
2443 void wxWindowGTK::DoMoveWindow(int x, int y, int width, int height)
2444 {
2445 gtk_widget_set_size_request(m_widget, width, height);
2446 // inform the parent to perform the move
2447 WX_PIZZA(m_parent->m_wxwindow)->move(m_widget, x, y);
2448 }
2449
2450 void wxWindowGTK::ConstrainSize()
2451 {
2452 #ifdef __WXGPE__
2453 // GPE's window manager doesn't like size hints at all, esp. when the user
2454 // has to use the virtual keyboard, so don't constrain size there
2455 if (!IsTopLevel())
2456 #endif
2457 {
2458 const wxSize minSize = GetMinSize();
2459 const wxSize maxSize = GetMaxSize();
2460 if (minSize.x > 0 && m_width < minSize.x) m_width = minSize.x;
2461 if (minSize.y > 0 && m_height < minSize.y) m_height = minSize.y;
2462 if (maxSize.x > 0 && m_width > maxSize.x) m_width = maxSize.x;
2463 if (maxSize.y > 0 && m_height > maxSize.y) m_height = maxSize.y;
2464 }
2465 }
2466
2467 void wxWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags )
2468 {
2469 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
2470 wxASSERT_MSG( (m_parent != NULL), wxT("wxWindowGTK::SetSize requires parent.\n") );
2471
2472 int currentX, currentY;
2473 GetPosition(&currentX, &currentY);
2474 if (x == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2475 x = currentX;
2476 if (y == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2477 y = currentY;
2478 AdjustForParentClientOrigin(x, y, sizeFlags);
2479
2480 // calculate the best size if we should auto size the window
2481 if ( ((sizeFlags & wxSIZE_AUTO_WIDTH) && width == -1) ||
2482 ((sizeFlags & wxSIZE_AUTO_HEIGHT) && height == -1) )
2483 {
2484 const wxSize sizeBest = GetBestSize();
2485 if ( (sizeFlags & wxSIZE_AUTO_WIDTH) && width == -1 )
2486 width = sizeBest.x;
2487 if ( (sizeFlags & wxSIZE_AUTO_HEIGHT) && height == -1 )
2488 height = sizeBest.y;
2489 }
2490
2491 const wxSize oldSize(m_width, m_height);
2492 if (width != -1)
2493 m_width = width;
2494 if (height != -1)
2495 m_height = height;
2496
2497 if (m_parent->m_wxwindow)
2498 {
2499 wxPizza* pizza = WX_PIZZA(m_parent->m_wxwindow);
2500 m_x = x + pizza->m_scroll_x;
2501 m_y = y + pizza->m_scroll_y;
2502
2503 int left_border = 0;
2504 int right_border = 0;
2505 int top_border = 0;
2506 int bottom_border = 0;
2507
2508 /* the default button has a border around it */
2509 if (GTK_WIDGET_CAN_DEFAULT(m_widget))
2510 {
2511 GtkBorder *default_border = NULL;
2512 gtk_widget_style_get( m_widget, "default_border", &default_border, NULL );
2513 if (default_border)
2514 {
2515 left_border += default_border->left;
2516 right_border += default_border->right;
2517 top_border += default_border->top;
2518 bottom_border += default_border->bottom;
2519 gtk_border_free( default_border );
2520 }
2521 }
2522
2523 DoMoveWindow( m_x - left_border,
2524 m_y - top_border,
2525 m_width+left_border+right_border,
2526 m_height+top_border+bottom_border );
2527 }
2528
2529 if (m_width != oldSize.x || m_height != oldSize.y)
2530 {
2531 // update these variables to keep size_allocate handler
2532 // from sending another size event for this change
2533 GetClientSize( &m_oldClientWidth, &m_oldClientHeight );
2534
2535 gtk_widget_queue_resize(m_widget);
2536 if (!m_nativeSizeEvent)
2537 {
2538 wxSizeEvent event( wxSize(m_width,m_height), GetId() );
2539 event.SetEventObject( this );
2540 HandleWindowEvent( event );
2541 }
2542 }
2543 }
2544
2545 bool wxWindowGTK::GtkShowFromOnIdle()
2546 {
2547 if (IsShown() && m_showOnIdle && !GTK_WIDGET_VISIBLE (m_widget))
2548 {
2549 GtkAllocation alloc;
2550 alloc.x = m_x;
2551 alloc.y = m_y;
2552 alloc.width = m_width;
2553 alloc.height = m_height;
2554 gtk_widget_size_allocate( m_widget, &alloc );
2555 gtk_widget_show( m_widget );
2556 wxShowEvent eventShow(GetId(), true);
2557 eventShow.SetEventObject(this);
2558 HandleWindowEvent(eventShow);
2559 m_showOnIdle = false;
2560 return true;
2561 }
2562
2563 return false;
2564 }
2565
2566 void wxWindowGTK::OnInternalIdle()
2567 {
2568 if ( gs_deferredFocusOut )
2569 GTKHandleDeferredFocusOut();
2570
2571 // Check if we have to show window now
2572 if (GtkShowFromOnIdle()) return;
2573
2574 if ( m_dirtyTabOrder )
2575 {
2576 m_dirtyTabOrder = false;
2577 RealizeTabOrder();
2578 }
2579
2580 // Update style if the window was not yet realized
2581 // and SetBackgroundStyle(wxBG_STYLE_CUSTOM) was called
2582 if (m_needsStyleChange)
2583 {
2584 SetBackgroundStyle(GetBackgroundStyle());
2585 m_needsStyleChange = false;
2586 }
2587
2588 wxCursor cursor = m_cursor;
2589 if (g_globalCursor.Ok()) cursor = g_globalCursor;
2590
2591 if (cursor.Ok())
2592 {
2593 /* I now set the cursor anew in every OnInternalIdle call
2594 as setting the cursor in a parent window also effects the
2595 windows above so that checking for the current cursor is
2596 not possible. */
2597
2598 if (m_wxwindow && (m_wxwindow != m_widget))
2599 {
2600 GdkWindow *window = m_wxwindow->window;
2601 if (window)
2602 gdk_window_set_cursor( window, cursor.GetCursor() );
2603
2604 if (!g_globalCursor.Ok())
2605 cursor = *wxSTANDARD_CURSOR;
2606
2607 window = m_widget->window;
2608 if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
2609 gdk_window_set_cursor( window, cursor.GetCursor() );
2610
2611 }
2612 else if ( m_widget )
2613 {
2614 GdkWindow *window = m_widget->window;
2615 if ( window && !GTK_WIDGET_NO_WINDOW(m_widget) )
2616 gdk_window_set_cursor( window, cursor.GetCursor() );
2617 }
2618 }
2619
2620 if (wxUpdateUIEvent::CanUpdate(this) && IsShownOnScreen())
2621 UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
2622 }
2623
2624 void wxWindowGTK::DoGetSize( int *width, int *height ) const
2625 {
2626 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2627
2628 if (width) (*width) = m_width;
2629 if (height) (*height) = m_height;
2630 }
2631
2632 void wxWindowGTK::DoSetClientSize( int width, int height )
2633 {
2634 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2635
2636 const wxSize size = GetSize();
2637 const wxSize clientSize = GetClientSize();
2638 SetSize(width + (size.x - clientSize.x), height + (size.y - clientSize.y));
2639 }
2640
2641 void wxWindowGTK::DoGetClientSize( int *width, int *height ) const
2642 {
2643 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2644
2645 int w = m_width;
2646 int h = m_height;
2647
2648 if ( m_wxwindow )
2649 {
2650 // if window is scrollable, account for scrollbars
2651 if ( GTK_IS_SCROLLED_WINDOW(m_widget) )
2652 {
2653 GtkPolicyType policy[ScrollDir_Max];
2654 gtk_scrolled_window_get_policy(GTK_SCROLLED_WINDOW(m_widget),
2655 &policy[ScrollDir_Horz],
2656 &policy[ScrollDir_Vert]);
2657
2658 for ( int i = 0; i < ScrollDir_Max; i++ )
2659 {
2660 // don't account for the scrollbars we don't have
2661 GtkRange * const range = m_scrollBar[i];
2662 if ( !range )
2663 continue;
2664
2665 // nor for the ones we have but don't current show
2666 switch ( policy[i] )
2667 {
2668 case GTK_POLICY_NEVER:
2669 // never shown so doesn't take any place
2670 continue;
2671
2672 case GTK_POLICY_ALWAYS:
2673 // no checks necessary
2674 break;
2675
2676 case GTK_POLICY_AUTOMATIC:
2677 // may be shown or not, check
2678 GtkAdjustment *adj = gtk_range_get_adjustment(range);
2679 if ( adj->upper <= adj->page_size )
2680 continue;
2681 }
2682
2683 GtkRequisition req;
2684 gtk_widget_size_request(GTK_WIDGET(range), &req);
2685 if (i == ScrollDir_Horz)
2686 h -= req.height;
2687 else
2688 w -= req.width;
2689 }
2690 }
2691
2692 int border_x, border_y;
2693 WX_PIZZA(m_wxwindow)->get_border_widths(border_x, border_y);
2694 w -= 2 * border_x;
2695 h -= 2 * border_y;
2696
2697 if (w < 0)
2698 w = 0;
2699 if (h < 0)
2700 h = 0;
2701 }
2702
2703 if (width) *width = w;
2704 if (height) *height = h;
2705 }
2706
2707 void wxWindowGTK::DoGetPosition( int *x, int *y ) const
2708 {
2709 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2710
2711 int dx = 0;
2712 int dy = 0;
2713 if (!IsTopLevel() && m_parent && m_parent->m_wxwindow)
2714 {
2715 wxPizza* pizza = WX_PIZZA(m_parent->m_wxwindow);
2716 dx = pizza->m_scroll_x;
2717 dy = pizza->m_scroll_y;
2718 }
2719
2720 if (m_x == -1 && m_y == -1)
2721 {
2722 GdkWindow *source = NULL;
2723 if (m_wxwindow)
2724 source = m_wxwindow->window;
2725 else
2726 source = m_widget->window;
2727
2728 if (source)
2729 {
2730 int org_x = 0;
2731 int org_y = 0;
2732 gdk_window_get_origin( source, &org_x, &org_y );
2733
2734 if (m_parent)
2735 m_parent->ScreenToClient(&org_x, &org_y);
2736
2737 const_cast<wxWindowGTK*>(this)->m_x = org_x;
2738 const_cast<wxWindowGTK*>(this)->m_y = org_y;
2739 }
2740 }
2741
2742 if (x) (*x) = m_x - dx;
2743 if (y) (*y) = m_y - dy;
2744 }
2745
2746 void wxWindowGTK::DoClientToScreen( int *x, int *y ) const
2747 {
2748 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2749
2750 if (!m_widget->window) return;
2751
2752 GdkWindow *source = NULL;
2753 if (m_wxwindow)
2754 source = m_wxwindow->window;
2755 else
2756 source = m_widget->window;
2757
2758 int org_x = 0;
2759 int org_y = 0;
2760 gdk_window_get_origin( source, &org_x, &org_y );
2761
2762 if (!m_wxwindow)
2763 {
2764 if (GTK_WIDGET_NO_WINDOW (m_widget))
2765 {
2766 org_x += m_widget->allocation.x;
2767 org_y += m_widget->allocation.y;
2768 }
2769 }
2770
2771
2772 if (x)
2773 {
2774 if (GetLayoutDirection() == wxLayout_RightToLeft)
2775 *x = (GetClientSize().x - *x) + org_x;
2776 else
2777 *x += org_x;
2778 }
2779
2780 if (y) *y += org_y;
2781 }
2782
2783 void wxWindowGTK::DoScreenToClient( int *x, int *y ) const
2784 {
2785 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2786
2787 if (!m_widget->window) return;
2788
2789 GdkWindow *source = NULL;
2790 if (m_wxwindow)
2791 source = m_wxwindow->window;
2792 else
2793 source = m_widget->window;
2794
2795 int org_x = 0;
2796 int org_y = 0;
2797 gdk_window_get_origin( source, &org_x, &org_y );
2798
2799 if (!m_wxwindow)
2800 {
2801 if (GTK_WIDGET_NO_WINDOW (m_widget))
2802 {
2803 org_x += m_widget->allocation.x;
2804 org_y += m_widget->allocation.y;
2805 }
2806 }
2807
2808 if (x)
2809 {
2810 if (GetLayoutDirection() == wxLayout_RightToLeft)
2811 *x = (GetClientSize().x - *x) - org_x;
2812 else
2813 *x -= org_x;
2814 }
2815 if (y) *y -= org_y;
2816 }
2817
2818 bool wxWindowGTK::Show( bool show )
2819 {
2820 wxCHECK_MSG( (m_widget != NULL), false, wxT("invalid window") );
2821
2822 if (!wxWindowBase::Show(show))
2823 {
2824 // nothing to do
2825 return false;
2826 }
2827
2828 if (show && m_showOnIdle)
2829 {
2830 // deferred
2831 }
2832 else
2833 {
2834 if (show)
2835 gtk_widget_show(m_widget);
2836 else
2837 gtk_widget_hide(m_widget);
2838 wxShowEvent eventShow(GetId(), show);
2839 eventShow.SetEventObject(this);
2840 HandleWindowEvent(eventShow);
2841 }
2842
2843 return true;
2844 }
2845
2846 void wxWindowGTK::DoEnable( bool enable )
2847 {
2848 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2849
2850 gtk_widget_set_sensitive( m_widget, enable );
2851 if (m_wxwindow && (m_wxwindow != m_widget))
2852 gtk_widget_set_sensitive( m_wxwindow, enable );
2853 }
2854
2855 int wxWindowGTK::GetCharHeight() const
2856 {
2857 wxCHECK_MSG( (m_widget != NULL), 12, wxT("invalid window") );
2858
2859 wxFont font = GetFont();
2860 wxCHECK_MSG( font.Ok(), 12, wxT("invalid font") );
2861
2862 PangoContext* context = gtk_widget_get_pango_context(m_widget);
2863
2864 if (!context)
2865 return 0;
2866
2867 PangoFontDescription *desc = font.GetNativeFontInfo()->description;
2868 PangoLayout *layout = pango_layout_new(context);
2869 pango_layout_set_font_description(layout, desc);
2870 pango_layout_set_text(layout, "H", 1);
2871 PangoLayoutLine *line = (PangoLayoutLine *)pango_layout_get_lines(layout)->data;
2872
2873 PangoRectangle rect;
2874 pango_layout_line_get_extents(line, NULL, &rect);
2875
2876 g_object_unref (layout);
2877
2878 return (int) PANGO_PIXELS(rect.height);
2879 }
2880
2881 int wxWindowGTK::GetCharWidth() const
2882 {
2883 wxCHECK_MSG( (m_widget != NULL), 8, wxT("invalid window") );
2884
2885 wxFont font = GetFont();
2886 wxCHECK_MSG( font.Ok(), 8, wxT("invalid font") );
2887
2888 PangoContext* context = gtk_widget_get_pango_context(m_widget);
2889
2890 if (!context)
2891 return 0;
2892
2893 PangoFontDescription *desc = font.GetNativeFontInfo()->description;
2894 PangoLayout *layout = pango_layout_new(context);
2895 pango_layout_set_font_description(layout, desc);
2896 pango_layout_set_text(layout, "g", 1);
2897 PangoLayoutLine *line = (PangoLayoutLine *)pango_layout_get_lines(layout)->data;
2898
2899 PangoRectangle rect;
2900 pango_layout_line_get_extents(line, NULL, &rect);
2901
2902 g_object_unref (layout);
2903
2904 return (int) PANGO_PIXELS(rect.width);
2905 }
2906
2907 void wxWindowGTK::GetTextExtent( const wxString& string,
2908 int *x,
2909 int *y,
2910 int *descent,
2911 int *externalLeading,
2912 const wxFont *theFont ) const
2913 {
2914 wxFont fontToUse = theFont ? *theFont : GetFont();
2915
2916 wxCHECK_RET( fontToUse.Ok(), wxT("invalid font") );
2917
2918 if (string.empty())
2919 {
2920 if (x) (*x) = 0;
2921 if (y) (*y) = 0;
2922 return;
2923 }
2924
2925 PangoContext *context = NULL;
2926 if (m_widget)
2927 context = gtk_widget_get_pango_context( m_widget );
2928
2929 if (!context)
2930 {
2931 if (x) (*x) = 0;
2932 if (y) (*y) = 0;
2933 return;
2934 }
2935
2936 PangoFontDescription *desc = fontToUse.GetNativeFontInfo()->description;
2937 PangoLayout *layout = pango_layout_new(context);
2938 pango_layout_set_font_description(layout, desc);
2939 {
2940 const wxCharBuffer data = wxGTK_CONV( string );
2941 if ( data )
2942 pango_layout_set_text(layout, data, strlen(data));
2943 }
2944
2945 PangoRectangle rect;
2946 pango_layout_get_extents(layout, NULL, &rect);
2947
2948 if (x) (*x) = (wxCoord) PANGO_PIXELS(rect.width);
2949 if (y) (*y) = (wxCoord) PANGO_PIXELS(rect.height);
2950 if (descent)
2951 {
2952 PangoLayoutIter *iter = pango_layout_get_iter(layout);
2953 int baseline = pango_layout_iter_get_baseline(iter);
2954 pango_layout_iter_free(iter);
2955 *descent = *y - PANGO_PIXELS(baseline);
2956 }
2957 if (externalLeading) (*externalLeading) = 0; // ??
2958
2959 g_object_unref (layout);
2960 }
2961
2962 void wxWindowGTK::GTKDisableFocusOutEvent()
2963 {
2964 g_signal_handlers_block_by_func( m_focusWidget,
2965 (gpointer) gtk_window_focus_out_callback, this);
2966 }
2967
2968 void wxWindowGTK::GTKEnableFocusOutEvent()
2969 {
2970 g_signal_handlers_unblock_by_func( m_focusWidget,
2971 (gpointer) gtk_window_focus_out_callback, this);
2972 }
2973
2974 bool wxWindowGTK::GTKHandleFocusIn()
2975 {
2976 // Disable default focus handling for custom windows since the default GTK+
2977 // handler issues a repaint
2978 const bool retval = m_wxwindow ? true : false;
2979
2980
2981 // NB: if there's still unprocessed deferred focus-out event (see
2982 // GTKHandleFocusOut() for explanation), we need to process it first so
2983 // that the order of focus events -- focus-out first, then focus-in
2984 // elsewhere -- is preserved
2985 if ( gs_deferredFocusOut )
2986 {
2987 if ( GTKNeedsToFilterSameWindowFocus() &&
2988 gs_deferredFocusOut == this )
2989 {
2990 // GTK+ focus changed from this wxWindow back to itself, so don't
2991 // emit any events at all
2992 wxLogTrace(TRACE_FOCUS,
2993 "filtered out spurious focus change within %s(%p, %s)",
2994 GetClassInfo()->GetClassName(), this, GetLabel());
2995 gs_deferredFocusOut = NULL;
2996 return retval;
2997 }
2998
2999 // otherwise we need to send focus-out first
3000 wxASSERT_MSG ( gs_deferredFocusOut != this,
3001 "GTKHandleFocusIn(GTKFocus_Normal) called even though focus changed back to itself - derived class should handle this" );
3002 GTKHandleDeferredFocusOut();
3003 }
3004
3005
3006 wxLogTrace(TRACE_FOCUS,
3007 "handling focus_in event for %s(%p, %s)",
3008 GetClassInfo()->GetClassName(), this, GetLabel());
3009
3010 if (m_imData)
3011 gtk_im_context_focus_in(m_imData->context);
3012
3013 gs_currentFocus = this;
3014 gs_pendingFocus = NULL;
3015
3016 #if wxUSE_CARET
3017 // caret needs to be informed about focus change
3018 wxCaret *caret = GetCaret();
3019 if ( caret )
3020 {
3021 caret->OnSetFocus();
3022 }
3023 #endif // wxUSE_CARET
3024
3025 // Notify the parent keeping track of focus for the kbd navigation
3026 // purposes that we got it.
3027 wxChildFocusEvent eventChildFocus(static_cast<wxWindow*>(this));
3028 GTKProcessEvent(eventChildFocus);
3029
3030 wxFocusEvent eventFocus(wxEVT_SET_FOCUS, GetId());
3031 eventFocus.SetEventObject(this);
3032 GTKProcessEvent(eventFocus);
3033
3034 return retval;
3035 }
3036
3037 bool wxWindowGTK::GTKHandleFocusOut()
3038 {
3039 // Disable default focus handling for custom windows since the default GTK+
3040 // handler issues a repaint
3041 const bool retval = m_wxwindow ? true : false;
3042
3043
3044 // NB: If a control is composed of several GtkWidgets and when focus
3045 // changes from one of them to another within the same wxWindow, we get
3046 // a focus-out event followed by focus-in for another GtkWidget owned
3047 // by the same wx control. We don't want to generate two spurious
3048 // wxEVT_SET_FOCUS events in this case, so we defer sending wx events
3049 // from GTKHandleFocusOut() until we know for sure it's not coming back
3050 // (i.e. in GTKHandleFocusIn() or at idle time).
3051 if ( GTKNeedsToFilterSameWindowFocus() )
3052 {
3053 wxASSERT_MSG( gs_deferredFocusOut == NULL,
3054 "deferred focus out event already pending" );
3055 wxLogTrace(TRACE_FOCUS,
3056 "deferring focus_out event for %s(%p, %s)",
3057 GetClassInfo()->GetClassName(), this, GetLabel());
3058 gs_deferredFocusOut = this;
3059 return retval;
3060 }
3061
3062 GTKHandleFocusOutNoDeferring();
3063
3064 return retval;
3065 }
3066
3067 void wxWindowGTK::GTKHandleFocusOutNoDeferring()
3068 {
3069 wxLogTrace(TRACE_FOCUS,
3070 "handling focus_out event for %s(%p, %s)",
3071 GetClassInfo()->GetClassName(), this, GetLabel());
3072
3073 if (m_imData)
3074 gtk_im_context_focus_out(m_imData->context);
3075
3076 if ( gs_currentFocus != this )
3077 {
3078 // Something is terribly wrong, gs_currentFocus is out of sync with the
3079 // real focus. We will reset it to NULL anyway, because after this
3080 // focus-out event is handled, one of the following with happen:
3081 //
3082 // * either focus will go out of the app altogether, in which case
3083 // gs_currentFocus _should_ be NULL
3084 //
3085 // * or it goes to another control, in which case focus-in event will
3086 // follow immediately and it will set gs_currentFocus to the right
3087 // value
3088 wxLogDebug("window %s(%p, %s) lost focus even though it didn't have it",
3089 GetClassInfo()->GetClassName(), this, GetLabel());
3090 }
3091 gs_currentFocus = NULL;
3092
3093 #if wxUSE_CARET
3094 // caret needs to be informed about focus change
3095 wxCaret *caret = GetCaret();
3096 if ( caret )
3097 {
3098 caret->OnKillFocus();
3099 }
3100 #endif // wxUSE_CARET
3101
3102 wxFocusEvent event( wxEVT_KILL_FOCUS, GetId() );
3103 event.SetEventObject( this );
3104 GTKProcessEvent( event );
3105 }
3106
3107 /*static*/
3108 void wxWindowGTK::GTKHandleDeferredFocusOut()
3109 {
3110 // NB: See GTKHandleFocusOut() for explanation. This function is called
3111 // from either GTKHandleFocusIn() or OnInternalIdle() to process
3112 // deferred event.
3113 if ( gs_deferredFocusOut )
3114 {
3115 wxWindowGTK *win = gs_deferredFocusOut;
3116 gs_deferredFocusOut = NULL;
3117
3118 wxLogTrace(TRACE_FOCUS,
3119 "processing deferred focus_out event for %s(%p, %s)",
3120 win->GetClassInfo()->GetClassName(), win, win->GetLabel());
3121
3122 win->GTKHandleFocusOutNoDeferring();
3123 }
3124 }
3125
3126 void wxWindowGTK::SetFocus()
3127 {
3128 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
3129
3130 // Setting "physical" focus is not immediate in GTK+ and while
3131 // gtk_widget_is_focus ("determines if the widget is the focus widget
3132 // within its toplevel", i.e. returns true for one widget per TLW, not
3133 // globally) returns true immediately after grabbing focus,
3134 // GTK_WIDGET_HAS_FOCUS (which returns true only for the one widget that
3135 // has focus at the moment) takes affect only after the window is shown
3136 // (if it was hidden at the moment of the call) or at the next event loop
3137 // iteration.
3138 //
3139 // Because we want to FindFocus() call immediately following
3140 // foo->SetFocus() to return foo, we have to keep track of "pending" focus
3141 // ourselves.
3142 gs_pendingFocus = this;
3143
3144 GtkWidget *widget = m_wxwindow ? m_wxwindow : m_focusWidget;
3145
3146 if ( GTK_IS_CONTAINER(widget) &&
3147 !GTK_WIDGET_CAN_FOCUS(widget) )
3148 {
3149 wxLogTrace(TRACE_FOCUS,
3150 _T("Setting focus to a child of %s(%p, %s)"),
3151 GetClassInfo()->GetClassName(), this, GetLabel().c_str());
3152 gtk_widget_child_focus(widget, GTK_DIR_TAB_FORWARD);
3153 }
3154 else
3155 {
3156 wxLogTrace(TRACE_FOCUS,
3157 _T("Setting focus to %s(%p, %s)"),
3158 GetClassInfo()->GetClassName(), this, GetLabel().c_str());
3159 gtk_widget_grab_focus(widget);
3160 }
3161 }
3162
3163 void wxWindowGTK::SetCanFocus(bool canFocus)
3164 {
3165 if ( canFocus )
3166 GTK_WIDGET_SET_FLAGS(m_widget, GTK_CAN_FOCUS);
3167 else
3168 GTK_WIDGET_UNSET_FLAGS(m_widget, GTK_CAN_FOCUS);
3169
3170 if ( m_wxwindow && (m_widget != m_wxwindow) )
3171 {
3172 if ( canFocus )
3173 GTK_WIDGET_SET_FLAGS(m_wxwindow, GTK_CAN_FOCUS);
3174 else
3175 GTK_WIDGET_UNSET_FLAGS(m_wxwindow, GTK_CAN_FOCUS);
3176 }
3177 }
3178
3179 bool wxWindowGTK::Reparent( wxWindowBase *newParentBase )
3180 {
3181 wxCHECK_MSG( (m_widget != NULL), false, wxT("invalid window") );
3182
3183 wxWindowGTK *oldParent = m_parent,
3184 *newParent = (wxWindowGTK *)newParentBase;
3185
3186 wxASSERT( GTK_IS_WIDGET(m_widget) );
3187
3188 if ( !wxWindowBase::Reparent(newParent) )
3189 return false;
3190
3191 wxASSERT( GTK_IS_WIDGET(m_widget) );
3192
3193 if (oldParent)
3194 gtk_container_remove( GTK_CONTAINER(m_widget->parent), m_widget );
3195
3196 wxASSERT( GTK_IS_WIDGET(m_widget) );
3197
3198 if (newParent)
3199 {
3200 if (GTK_WIDGET_VISIBLE (newParent->m_widget))
3201 {
3202 m_showOnIdle = true;
3203 gtk_widget_hide( m_widget );
3204 }
3205 /* insert GTK representation */
3206 newParent->AddChildGTK(this);
3207 }
3208
3209 SetLayoutDirection(wxLayout_Default);
3210
3211 return true;
3212 }
3213
3214 void wxWindowGTK::DoAddChild(wxWindowGTK *child)
3215 {
3216 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
3217 wxASSERT_MSG( (child != NULL), wxT("invalid child window") );
3218
3219 /* add to list */
3220 AddChild( child );
3221
3222 /* insert GTK representation */
3223 AddChildGTK(child);
3224 }
3225
3226 void wxWindowGTK::AddChild(wxWindowBase *child)
3227 {
3228 wxWindowBase::AddChild(child);
3229 m_dirtyTabOrder = true;
3230 wxTheApp->WakeUpIdle();
3231 }
3232
3233 void wxWindowGTK::RemoveChild(wxWindowBase *child)
3234 {
3235 wxWindowBase::RemoveChild(child);
3236 m_dirtyTabOrder = true;
3237 wxTheApp->WakeUpIdle();
3238 }
3239
3240 /* static */
3241 wxLayoutDirection wxWindowGTK::GTKGetLayout(GtkWidget *widget)
3242 {
3243 return gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL
3244 ? wxLayout_RightToLeft
3245 : wxLayout_LeftToRight;
3246 }
3247
3248 /* static */
3249 void wxWindowGTK::GTKSetLayout(GtkWidget *widget, wxLayoutDirection dir)
3250 {
3251 wxASSERT_MSG( dir != wxLayout_Default, _T("invalid layout direction") );
3252
3253 gtk_widget_set_direction(widget,
3254 dir == wxLayout_RightToLeft ? GTK_TEXT_DIR_RTL
3255 : GTK_TEXT_DIR_LTR);
3256 }
3257
3258 wxLayoutDirection wxWindowGTK::GetLayoutDirection() const
3259 {
3260 return GTKGetLayout(m_widget);
3261 }
3262
3263 void wxWindowGTK::SetLayoutDirection(wxLayoutDirection dir)
3264 {
3265 if ( dir == wxLayout_Default )
3266 {
3267 const wxWindow *const parent = GetParent();
3268 if ( parent )
3269 {
3270 // inherit layout from parent.
3271 dir = parent->GetLayoutDirection();
3272 }
3273 else // no parent, use global default layout
3274 {
3275 dir = wxTheApp->GetLayoutDirection();
3276 }
3277 }
3278
3279 if ( dir == wxLayout_Default )
3280 return;
3281
3282 GTKSetLayout(m_widget, dir);
3283
3284 if (m_wxwindow && (m_wxwindow != m_widget))
3285 GTKSetLayout(m_wxwindow, dir);
3286 }
3287
3288 wxCoord
3289 wxWindowGTK::AdjustForLayoutDirection(wxCoord x,
3290 wxCoord WXUNUSED(width),
3291 wxCoord WXUNUSED(widthTotal)) const
3292 {
3293 // We now mirror the coordinates of RTL windows in wxPizza
3294 return x;
3295 }
3296
3297 void wxWindowGTK::DoMoveInTabOrder(wxWindow *win, WindowOrder move)
3298 {
3299 wxWindowBase::DoMoveInTabOrder(win, move);
3300 m_dirtyTabOrder = true;
3301 wxTheApp->WakeUpIdle();
3302 }
3303
3304 bool wxWindowGTK::DoNavigateIn(int flags)
3305 {
3306 if ( flags & wxNavigationKeyEvent::WinChange )
3307 {
3308 wxFAIL_MSG( _T("not implemented") );
3309
3310 return false;
3311 }
3312 else // navigate inside the container
3313 {
3314 wxWindow *parent = wxGetTopLevelParent((wxWindow *)this);
3315 wxCHECK_MSG( parent, false, _T("every window must have a TLW parent") );
3316
3317 GtkDirectionType dir;
3318 dir = flags & wxNavigationKeyEvent::IsForward ? GTK_DIR_TAB_FORWARD
3319 : GTK_DIR_TAB_BACKWARD;
3320
3321 gboolean rc;
3322 g_signal_emit_by_name(parent->m_widget, "focus", dir, &rc);
3323
3324 return rc == TRUE;
3325 }
3326 }
3327
3328 bool wxWindowGTK::GTKWidgetNeedsMnemonic() const
3329 {
3330 // none needed by default
3331 return false;
3332 }
3333
3334 void wxWindowGTK::GTKWidgetDoSetMnemonic(GtkWidget* WXUNUSED(w))
3335 {
3336 // nothing to do by default since none is needed
3337 }
3338
3339 void wxWindowGTK::RealizeTabOrder()
3340 {
3341 if (m_wxwindow)
3342 {
3343 if ( !m_children.empty() )
3344 {
3345 // we don't only construct the correct focus chain but also use
3346 // this opportunity to update the mnemonic widgets for the widgets
3347 // that need them
3348
3349 GList *chain = NULL;
3350 wxWindowGTK* mnemonicWindow = NULL;
3351
3352 for ( wxWindowList::const_iterator i = m_children.begin();
3353 i != m_children.end();
3354 ++i )
3355 {
3356 wxWindowGTK *win = *i;
3357
3358 if ( mnemonicWindow )
3359 {
3360 if ( win->AcceptsFocusFromKeyboard() )
3361 {
3362 // wxComboBox et al. needs to focus on on a different
3363 // widget than m_widget, so if the main widget isn't
3364 // focusable try the connect widget
3365 GtkWidget* w = win->m_widget;
3366 if ( !GTK_WIDGET_CAN_FOCUS(w) )
3367 {
3368 w = win->GetConnectWidget();
3369 if ( !GTK_WIDGET_CAN_FOCUS(w) )
3370 w = NULL;
3371 }
3372
3373 if ( w )
3374 {
3375 mnemonicWindow->GTKWidgetDoSetMnemonic(w);
3376 mnemonicWindow = NULL;
3377 }
3378 }
3379 }
3380 else if ( win->GTKWidgetNeedsMnemonic() )
3381 {
3382 mnemonicWindow = win;
3383 }
3384
3385 chain = g_list_prepend(chain, win->m_widget);
3386 }
3387
3388 chain = g_list_reverse(chain);
3389
3390 gtk_container_set_focus_chain(GTK_CONTAINER(m_wxwindow), chain);
3391 g_list_free(chain);
3392 }
3393 else // no children
3394 {
3395 gtk_container_unset_focus_chain(GTK_CONTAINER(m_wxwindow));
3396 }
3397 }
3398 }
3399
3400 void wxWindowGTK::Raise()
3401 {
3402 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3403
3404 if (m_wxwindow && m_wxwindow->window)
3405 {
3406 gdk_window_raise( m_wxwindow->window );
3407 }
3408 else if (m_widget->window)
3409 {
3410 gdk_window_raise( m_widget->window );
3411 }
3412 }
3413
3414 void wxWindowGTK::Lower()
3415 {
3416 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3417
3418 if (m_wxwindow && m_wxwindow->window)
3419 {
3420 gdk_window_lower( m_wxwindow->window );
3421 }
3422 else if (m_widget->window)
3423 {
3424 gdk_window_lower( m_widget->window );
3425 }
3426 }
3427
3428 bool wxWindowGTK::SetCursor( const wxCursor &cursor )
3429 {
3430 if ( !wxWindowBase::SetCursor(cursor.Ok() ? cursor : *wxSTANDARD_CURSOR) )
3431 return false;
3432
3433 GTKUpdateCursor();
3434
3435 return true;
3436 }
3437
3438 void wxWindowGTK::GTKUpdateCursor()
3439 {
3440 wxCursor cursor(g_globalCursor.Ok() ? g_globalCursor : GetCursor());
3441 if ( cursor.Ok() )
3442 {
3443 wxArrayGdkWindows windowsThis;
3444 GdkWindow * const winThis = GTKGetWindow(windowsThis);
3445 if ( winThis )
3446 {
3447 gdk_window_set_cursor(winThis, cursor.GetCursor());
3448 }
3449 else
3450 {
3451 const size_t count = windowsThis.size();
3452 for ( size_t n = 0; n < count; n++ )
3453 {
3454 GdkWindow *win = windowsThis[n];
3455 if ( !win )
3456 {
3457 wxFAIL_MSG(_T("NULL window returned by GTKGetWindow()?"));
3458 continue;
3459 }
3460
3461 gdk_window_set_cursor(win, cursor.GetCursor());
3462 }
3463 }
3464 }
3465 }
3466
3467 void wxWindowGTK::WarpPointer( int x, int y )
3468 {
3469 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3470
3471 // We provide this function ourselves as it is
3472 // missing in GDK (top of this file).
3473
3474 GdkWindow *window = NULL;
3475 if (m_wxwindow)
3476 window = m_wxwindow->window;
3477 else
3478 window = GetConnectWidget()->window;
3479
3480 if (window)
3481 gdk_window_warp_pointer( window, x, y );
3482 }
3483
3484 wxWindowGTK::ScrollDir wxWindowGTK::ScrollDirFromRange(GtkRange *range) const
3485 {
3486 // find the scrollbar which generated the event
3487 for ( int dir = 0; dir < ScrollDir_Max; dir++ )
3488 {
3489 if ( range == m_scrollBar[dir] )
3490 return (ScrollDir)dir;
3491 }
3492
3493 wxFAIL_MSG( _T("event from unknown scrollbar received") );
3494
3495 return ScrollDir_Max;
3496 }
3497
3498 bool wxWindowGTK::DoScrollByUnits(ScrollDir dir, ScrollUnit unit, int units)
3499 {
3500 bool changed = false;
3501 GtkRange* range = m_scrollBar[dir];
3502 if ( range && units )
3503 {
3504 GtkAdjustment* adj = range->adjustment;
3505 gdouble inc = unit == ScrollUnit_Line ? adj->step_increment
3506 : adj->page_increment;
3507
3508 const int posOld = int(adj->value + 0.5);
3509 gtk_range_set_value(range, posOld + units*inc);
3510
3511 changed = int(adj->value + 0.5) != posOld;
3512 }
3513
3514 return changed;
3515 }
3516
3517 bool wxWindowGTK::ScrollLines(int lines)
3518 {
3519 return DoScrollByUnits(ScrollDir_Vert, ScrollUnit_Line, lines);
3520 }
3521
3522 bool wxWindowGTK::ScrollPages(int pages)
3523 {
3524 return DoScrollByUnits(ScrollDir_Vert, ScrollUnit_Page, pages);
3525 }
3526
3527 void wxWindowGTK::Refresh(bool WXUNUSED(eraseBackground),
3528 const wxRect *rect)
3529 {
3530 if (!m_widget)
3531 return;
3532 if (!m_widget->window)
3533 return;
3534
3535 if (m_wxwindow)
3536 {
3537 if (m_wxwindow->window == NULL) return;
3538
3539 GdkRectangle gdk_rect,
3540 *p;
3541 if (rect)
3542 {
3543 gdk_rect.x = rect->x;
3544 gdk_rect.y = rect->y;
3545 gdk_rect.width = rect->width;
3546 gdk_rect.height = rect->height;
3547 if (GetLayoutDirection() == wxLayout_RightToLeft)
3548 gdk_rect.x = GetClientSize().x - gdk_rect.x - gdk_rect.width;
3549
3550 p = &gdk_rect;
3551 }
3552 else // invalidate everything
3553 {
3554 p = NULL;
3555 }
3556
3557 gdk_window_invalidate_rect(m_wxwindow->window, p, true);
3558 }
3559 }
3560
3561 void wxWindowGTK::Update()
3562 {
3563 GtkUpdate();
3564
3565 // when we call Update() we really want to update the window immediately on
3566 // screen, even if it means flushing the entire queue and hence slowing down
3567 // everything -- but it should still be done, it's just that Update() should
3568 // be called very rarely
3569 gdk_flush();
3570 }
3571
3572 void wxWindowGTK::GtkUpdate()
3573 {
3574 if (m_wxwindow && m_wxwindow->window)
3575 gdk_window_process_updates(m_wxwindow->window, false);
3576 if (m_widget && m_widget->window && (m_wxwindow != m_widget))
3577 gdk_window_process_updates( m_widget->window, FALSE );
3578
3579 // for consistency with other platforms (and also because it's convenient
3580 // to be able to update an entire TLW by calling Update() only once), we
3581 // should also update all our children here
3582 for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
3583 node;
3584 node = node->GetNext() )
3585 {
3586 node->GetData()->GtkUpdate();
3587 }
3588 }
3589
3590 bool wxWindowGTK::DoIsExposed( int x, int y ) const
3591 {
3592 return m_updateRegion.Contains(x, y) != wxOutRegion;
3593 }
3594
3595
3596 bool wxWindowGTK::DoIsExposed( int x, int y, int w, int h ) const
3597 {
3598 if (GetLayoutDirection() == wxLayout_RightToLeft)
3599 return m_updateRegion.Contains(x-w, y, w, h) != wxOutRegion;
3600 else
3601 return m_updateRegion.Contains(x, y, w, h) != wxOutRegion;
3602 }
3603
3604 void wxWindowGTK::GtkSendPaintEvents()
3605 {
3606 if (!m_wxwindow)
3607 {
3608 m_updateRegion.Clear();
3609 return;
3610 }
3611
3612 // Clip to paint region in wxClientDC
3613 m_clipPaintRegion = true;
3614
3615 m_nativeUpdateRegion = m_updateRegion;
3616
3617 if (GetLayoutDirection() == wxLayout_RightToLeft)
3618 {
3619 // Transform m_updateRegion under RTL
3620 m_updateRegion.Clear();
3621
3622 gint width;
3623 gdk_drawable_get_size(m_wxwindow->window, &width, NULL);
3624
3625 wxRegionIterator upd( m_nativeUpdateRegion );
3626 while (upd)
3627 {
3628 wxRect rect;
3629 rect.x = upd.GetX();
3630 rect.y = upd.GetY();
3631 rect.width = upd.GetWidth();
3632 rect.height = upd.GetHeight();
3633
3634 rect.x = width - rect.x - rect.width;
3635 m_updateRegion.Union( rect );
3636
3637 ++upd;
3638 }
3639 }
3640
3641 if (GetThemeEnabled() && (GetBackgroundStyle() == wxBG_STYLE_SYSTEM))
3642 {
3643 // find ancestor from which to steal background
3644 wxWindow *parent = wxGetTopLevelParent((wxWindow *)this);
3645 if (!parent)
3646 parent = (wxWindow*)this;
3647
3648 if (GTK_WIDGET_MAPPED(parent->m_widget))
3649 {
3650 wxRegionIterator upd( m_nativeUpdateRegion );
3651 while (upd)
3652 {
3653 GdkRectangle rect;
3654 rect.x = upd.GetX();
3655 rect.y = upd.GetY();
3656 rect.width = upd.GetWidth();
3657 rect.height = upd.GetHeight();
3658
3659 gtk_paint_flat_box( parent->m_widget->style,
3660 m_wxwindow->window,
3661 (GtkStateType)GTK_WIDGET_STATE(m_wxwindow),
3662 GTK_SHADOW_NONE,
3663 &rect,
3664 parent->m_widget,
3665 (char *)"base",
3666 0, 0, -1, -1 );
3667
3668 ++upd;
3669 }
3670 }
3671 }
3672 else
3673 {
3674 wxWindowDC dc( (wxWindow*)this );
3675 dc.SetDeviceClippingRegion( m_updateRegion );
3676
3677 // Work around gtk-qt <= 0.60 bug whereby the window colour
3678 // remains grey
3679 if (GetBackgroundStyle() == wxBG_STYLE_COLOUR && GetBackgroundColour().Ok() && wxSystemOptions::GetOptionInt(wxT("gtk.window.force-background-colour")) == 1)
3680 {
3681 dc.SetBackground(wxBrush(GetBackgroundColour()));
3682 dc.Clear();
3683 }
3684
3685 wxEraseEvent erase_event( GetId(), &dc );
3686 erase_event.SetEventObject( this );
3687
3688 HandleWindowEvent(erase_event);
3689 }
3690
3691 wxNcPaintEvent nc_paint_event( GetId() );
3692 nc_paint_event.SetEventObject( this );
3693 HandleWindowEvent( nc_paint_event );
3694
3695 wxPaintEvent paint_event( GetId() );
3696 paint_event.SetEventObject( this );
3697 HandleWindowEvent( paint_event );
3698
3699 m_clipPaintRegion = false;
3700
3701 m_updateRegion.Clear();
3702 m_nativeUpdateRegion.Clear();
3703 }
3704
3705 void wxWindowGTK::SetDoubleBuffered( bool on )
3706 {
3707 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3708
3709 if ( m_wxwindow )
3710 gtk_widget_set_double_buffered( m_wxwindow, on );
3711 }
3712
3713 bool wxWindowGTK::IsDoubleBuffered() const
3714 {
3715 return GTK_WIDGET_DOUBLE_BUFFERED( m_wxwindow );
3716 }
3717
3718 void wxWindowGTK::ClearBackground()
3719 {
3720 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
3721 }
3722
3723 #if wxUSE_TOOLTIPS
3724 void wxWindowGTK::DoSetToolTip( wxToolTip *tip )
3725 {
3726 wxWindowBase::DoSetToolTip(tip);
3727
3728 if (m_tooltip)
3729 m_tooltip->Apply( (wxWindow *)this );
3730 }
3731
3732 void wxWindowGTK::ApplyToolTip( GtkTooltips *tips, const gchar *tip )
3733 {
3734 gtk_tooltips_set_tip(tips, GetConnectWidget(), tip, NULL);
3735 }
3736 #endif // wxUSE_TOOLTIPS
3737
3738 bool wxWindowGTK::SetBackgroundColour( const wxColour &colour )
3739 {
3740 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
3741
3742 if (!wxWindowBase::SetBackgroundColour(colour))
3743 return false;
3744
3745 if (colour.Ok())
3746 {
3747 // We need the pixel value e.g. for background clearing.
3748 m_backgroundColour.CalcPixel(gtk_widget_get_colormap(m_widget));
3749 }
3750
3751 // apply style change (forceStyle=true so that new style is applied
3752 // even if the bg colour changed from valid to wxNullColour)
3753 if (GetBackgroundStyle() != wxBG_STYLE_CUSTOM)
3754 ApplyWidgetStyle(true);
3755
3756 return true;
3757 }
3758
3759 bool wxWindowGTK::SetForegroundColour( const wxColour &colour )
3760 {
3761 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
3762
3763 if (!wxWindowBase::SetForegroundColour(colour))
3764 {
3765 return false;
3766 }
3767
3768 if (colour.Ok())
3769 {
3770 // We need the pixel value e.g. for background clearing.
3771 m_foregroundColour.CalcPixel(gtk_widget_get_colormap(m_widget));
3772 }
3773
3774 // apply style change (forceStyle=true so that new style is applied
3775 // even if the bg colour changed from valid to wxNullColour):
3776 ApplyWidgetStyle(true);
3777
3778 return true;
3779 }
3780
3781 PangoContext *wxWindowGTK::GtkGetPangoDefaultContext()
3782 {
3783 return gtk_widget_get_pango_context( m_widget );
3784 }
3785
3786 GtkRcStyle *wxWindowGTK::CreateWidgetStyle(bool forceStyle)
3787 {
3788 // do we need to apply any changes at all?
3789 if ( !forceStyle &&
3790 !m_font.Ok() &&
3791 !m_foregroundColour.Ok() && !m_backgroundColour.Ok() )
3792 {
3793 return NULL;
3794 }
3795
3796 GtkRcStyle *style = gtk_rc_style_new();
3797
3798 if ( m_font.Ok() )
3799 {
3800 style->font_desc =
3801 pango_font_description_copy( m_font.GetNativeFontInfo()->description );
3802 }
3803
3804 int flagsNormal = 0,
3805 flagsPrelight = 0,
3806 flagsActive = 0,
3807 flagsInsensitive = 0;
3808
3809 if ( m_foregroundColour.Ok() )
3810 {
3811 const GdkColor *fg = m_foregroundColour.GetColor();
3812
3813 style->fg[GTK_STATE_NORMAL] =
3814 style->text[GTK_STATE_NORMAL] = *fg;
3815 flagsNormal |= GTK_RC_FG | GTK_RC_TEXT;
3816
3817 style->fg[GTK_STATE_PRELIGHT] =
3818 style->text[GTK_STATE_PRELIGHT] = *fg;
3819 flagsPrelight |= GTK_RC_FG | GTK_RC_TEXT;
3820
3821 style->fg[GTK_STATE_ACTIVE] =
3822 style->text[GTK_STATE_ACTIVE] = *fg;
3823 flagsActive |= GTK_RC_FG | GTK_RC_TEXT;
3824 }
3825
3826 if ( m_backgroundColour.Ok() )
3827 {
3828 const GdkColor *bg = m_backgroundColour.GetColor();
3829
3830 style->bg[GTK_STATE_NORMAL] =
3831 style->base[GTK_STATE_NORMAL] = *bg;
3832 flagsNormal |= GTK_RC_BG | GTK_RC_BASE;
3833
3834 style->bg[GTK_STATE_PRELIGHT] =
3835 style->base[GTK_STATE_PRELIGHT] = *bg;
3836 flagsPrelight |= GTK_RC_BG | GTK_RC_BASE;
3837
3838 style->bg[GTK_STATE_ACTIVE] =
3839 style->base[GTK_STATE_ACTIVE] = *bg;
3840 flagsActive |= GTK_RC_BG | GTK_RC_BASE;
3841
3842 style->bg[GTK_STATE_INSENSITIVE] =
3843 style->base[GTK_STATE_INSENSITIVE] = *bg;
3844 flagsInsensitive |= GTK_RC_BG | GTK_RC_BASE;
3845 }
3846
3847 style->color_flags[GTK_STATE_NORMAL] = (GtkRcFlags)flagsNormal;
3848 style->color_flags[GTK_STATE_PRELIGHT] = (GtkRcFlags)flagsPrelight;
3849 style->color_flags[GTK_STATE_ACTIVE] = (GtkRcFlags)flagsActive;
3850 style->color_flags[GTK_STATE_INSENSITIVE] = (GtkRcFlags)flagsInsensitive;
3851
3852 return style;
3853 }
3854
3855 void wxWindowGTK::ApplyWidgetStyle(bool forceStyle)
3856 {
3857 GtkRcStyle *style = CreateWidgetStyle(forceStyle);
3858 if ( style )
3859 {
3860 DoApplyWidgetStyle(style);
3861 gtk_rc_style_unref(style);
3862 }
3863
3864 // Style change may affect GTK+'s size calculation:
3865 InvalidateBestSize();
3866 }
3867
3868 void wxWindowGTK::DoApplyWidgetStyle(GtkRcStyle *style)
3869 {
3870 wxSuspendStyleEvents s(static_cast<wxWindow*>(this));
3871
3872 if (m_wxwindow)
3873 gtk_widget_modify_style(m_wxwindow, style);
3874 else
3875 gtk_widget_modify_style(m_widget, style);
3876 }
3877
3878 bool wxWindowGTK::SetBackgroundStyle(wxBackgroundStyle style)
3879 {
3880 wxWindowBase::SetBackgroundStyle(style);
3881
3882 if (style == wxBG_STYLE_CUSTOM)
3883 {
3884 GdkWindow *window;
3885 if ( m_wxwindow )
3886 {
3887 window = m_wxwindow->window;
3888 }
3889 else
3890 {
3891 GtkWidget * const w = GetConnectWidget();
3892 window = w ? w->window : NULL;
3893 }
3894
3895 if (window)
3896 {
3897 // Make sure GDK/X11 doesn't refresh the window
3898 // automatically.
3899 gdk_window_set_back_pixmap( window, None, False );
3900 #ifdef __X__
3901 Display* display = GDK_WINDOW_DISPLAY(window);
3902 XFlush(display);
3903 #endif
3904 m_needsStyleChange = false;
3905 }
3906 else // window not realized yet
3907 {
3908 // Do in OnIdle, because the window is not yet available
3909 m_needsStyleChange = true;
3910 }
3911
3912 // Don't apply widget style, or we get a grey background
3913 }
3914 else
3915 {
3916 // apply style change (forceStyle=true so that new style is applied
3917 // even if the bg colour changed from valid to wxNullColour):
3918 ApplyWidgetStyle(true);
3919 }
3920 return true;
3921 }
3922
3923 // ----------------------------------------------------------------------------
3924 // Pop-up menu stuff
3925 // ----------------------------------------------------------------------------
3926
3927 #if wxUSE_MENUS_NATIVE
3928
3929 static void SetInvokingWindow( wxMenu *menu, wxWindow* win )
3930 {
3931 menu->SetInvokingWindow( win );
3932
3933 wxMenuItemList::compatibility_iterator node = menu->GetMenuItems().GetFirst();
3934 while (node)
3935 {
3936 wxMenuItem *menuitem = node->GetData();
3937 if (menuitem->IsSubMenu())
3938 {
3939 SetInvokingWindow( menuitem->GetSubMenu(), win );
3940 }
3941
3942 node = node->GetNext();
3943 }
3944 }
3945
3946 extern "C" {
3947 static
3948 void wxPopupMenuPositionCallback( GtkMenu *menu,
3949 gint *x, gint *y,
3950 gboolean * WXUNUSED(whatever),
3951 gpointer user_data )
3952 {
3953 // ensure that the menu appears entirely on screen
3954 GtkRequisition req;
3955 gtk_widget_get_child_requisition(GTK_WIDGET(menu), &req);
3956
3957 wxSize sizeScreen = wxGetDisplaySize();
3958 wxPoint *pos = (wxPoint*)user_data;
3959
3960 gint xmax = sizeScreen.x - req.width,
3961 ymax = sizeScreen.y - req.height;
3962
3963 *x = pos->x < xmax ? pos->x : xmax;
3964 *y = pos->y < ymax ? pos->y : ymax;
3965 }
3966 }
3967
3968 void wxWindowGTK::DoPopupMenuUpdateUI(wxMenu* menu)
3969 {
3970 menu->UpdateUI();
3971 }
3972
3973 bool wxWindowGTK::DoPopupMenu( wxMenu *menu, int x, int y )
3974 {
3975 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
3976
3977 wxCHECK_MSG( menu != NULL, false, wxT("invalid popup-menu") );
3978
3979 SetInvokingWindow( menu, this );
3980
3981 DoPopupMenuUpdateUI(menu);
3982
3983 wxPoint pos;
3984 gpointer userdata;
3985 GtkMenuPositionFunc posfunc;
3986 if ( x == -1 && y == -1 )
3987 {
3988 // use GTK's default positioning algorithm
3989 userdata = NULL;
3990 posfunc = NULL;
3991 }
3992 else
3993 {
3994 pos = ClientToScreen(wxPoint(x, y));
3995 userdata = &pos;
3996 posfunc = wxPopupMenuPositionCallback;
3997 }
3998
3999 menu->m_popupShown = true;
4000 gtk_menu_popup(
4001 GTK_MENU(menu->m_menu),
4002 NULL, // parent menu shell
4003 NULL, // parent menu item
4004 posfunc, // function to position it
4005 userdata, // client data
4006 0, // button used to activate it
4007 gtk_get_current_event_time()
4008 );
4009
4010 while (menu->m_popupShown)
4011 {
4012 gtk_main_iteration();
4013 }
4014
4015 return true;
4016 }
4017
4018 #endif // wxUSE_MENUS_NATIVE
4019
4020 #if wxUSE_DRAG_AND_DROP
4021
4022 void wxWindowGTK::SetDropTarget( wxDropTarget *dropTarget )
4023 {
4024 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4025
4026 GtkWidget *dnd_widget = GetConnectWidget();
4027
4028 if (m_dropTarget) m_dropTarget->GtkUnregisterWidget( dnd_widget );
4029
4030 if (m_dropTarget) delete m_dropTarget;
4031 m_dropTarget = dropTarget;
4032
4033 if (m_dropTarget) m_dropTarget->GtkRegisterWidget( dnd_widget );
4034 }
4035
4036 #endif // wxUSE_DRAG_AND_DROP
4037
4038 GtkWidget* wxWindowGTK::GetConnectWidget()
4039 {
4040 GtkWidget *connect_widget = m_widget;
4041 if (m_wxwindow) connect_widget = m_wxwindow;
4042
4043 return connect_widget;
4044 }
4045
4046 bool wxWindowGTK::GTKIsOwnWindow(GdkWindow *window) const
4047 {
4048 wxArrayGdkWindows windowsThis;
4049 GdkWindow * const winThis = GTKGetWindow(windowsThis);
4050
4051 return winThis ? window == winThis
4052 : windowsThis.Index(window) != wxNOT_FOUND;
4053 }
4054
4055 GdkWindow *wxWindowGTK::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
4056 {
4057 return m_wxwindow ? m_wxwindow->window : m_widget->window;
4058 }
4059
4060 bool wxWindowGTK::SetFont( const wxFont &font )
4061 {
4062 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
4063
4064 if (!wxWindowBase::SetFont(font))
4065 return false;
4066
4067 // apply style change (forceStyle=true so that new style is applied
4068 // even if the font changed from valid to wxNullFont):
4069 ApplyWidgetStyle(true);
4070
4071 return true;
4072 }
4073
4074 void wxWindowGTK::DoCaptureMouse()
4075 {
4076 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4077
4078 GdkWindow *window = NULL;
4079 if (m_wxwindow)
4080 window = m_wxwindow->window;
4081 else
4082 window = GetConnectWidget()->window;
4083
4084 wxCHECK_RET( window, _T("CaptureMouse() failed") );
4085
4086 const wxCursor* cursor = &m_cursor;
4087 if (!cursor->Ok())
4088 cursor = wxSTANDARD_CURSOR;
4089
4090 gdk_pointer_grab( window, FALSE,
4091 (GdkEventMask)
4092 (GDK_BUTTON_PRESS_MASK |
4093 GDK_BUTTON_RELEASE_MASK |
4094 GDK_POINTER_MOTION_HINT_MASK |
4095 GDK_POINTER_MOTION_MASK),
4096 NULL,
4097 cursor->GetCursor(),
4098 (guint32)GDK_CURRENT_TIME );
4099 g_captureWindow = this;
4100 g_captureWindowHasMouse = true;
4101 }
4102
4103 void wxWindowGTK::DoReleaseMouse()
4104 {
4105 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4106
4107 wxCHECK_RET( g_captureWindow, wxT("can't release mouse - not captured") );
4108
4109 g_captureWindow = NULL;
4110
4111 GdkWindow *window = NULL;
4112 if (m_wxwindow)
4113 window = m_wxwindow->window;
4114 else
4115 window = GetConnectWidget()->window;
4116
4117 if (!window)
4118 return;
4119
4120 gdk_pointer_ungrab ( (guint32)GDK_CURRENT_TIME );
4121 }
4122
4123 void wxWindowGTK::GTKReleaseMouseAndNotify()
4124 {
4125 DoReleaseMouse();
4126 wxMouseCaptureLostEvent evt(GetId());
4127 evt.SetEventObject( this );
4128 HandleWindowEvent( evt );
4129 }
4130
4131 /* static */
4132 wxWindow *wxWindowBase::GetCapture()
4133 {
4134 return (wxWindow *)g_captureWindow;
4135 }
4136
4137 bool wxWindowGTK::IsRetained() const
4138 {
4139 return false;
4140 }
4141
4142 void wxWindowGTK::SetScrollbar(int orient,
4143 int pos,
4144 int thumbVisible,
4145 int range,
4146 bool WXUNUSED(update))
4147 {
4148 const int dir = ScrollDirFromOrient(orient);
4149 GtkRange* const sb = m_scrollBar[dir];
4150 wxCHECK_RET( sb, _T("this window is not scrollable") );
4151
4152 if (range <= 0)
4153 {
4154 // GtkRange requires upper > lower
4155 range =
4156 thumbVisible = 1;
4157 }
4158
4159 GtkAdjustment * const adj = sb->adjustment;
4160 adj->step_increment = 1;
4161 adj->page_increment =
4162 adj->page_size = thumbVisible;
4163 adj->value = pos;
4164
4165 g_signal_handlers_block_by_func(
4166 sb, (void*)gtk_scrollbar_value_changed, this);
4167
4168 gtk_range_set_range(sb, 0, range);
4169 m_scrollPos[dir] = sb->adjustment->value;
4170
4171 g_signal_handlers_unblock_by_func(
4172 sb, (void*)gtk_scrollbar_value_changed, this);
4173 }
4174
4175 void wxWindowGTK::SetScrollPos(int orient, int pos, bool WXUNUSED(refresh))
4176 {
4177 const int dir = ScrollDirFromOrient(orient);
4178 GtkRange * const sb = m_scrollBar[dir];
4179 wxCHECK_RET( sb, _T("this window is not scrollable") );
4180
4181 // This check is more than an optimization. Without it, the slider
4182 // will not move smoothly while tracking when using wxScrollHelper.
4183 if (GetScrollPos(orient) != pos)
4184 {
4185 g_signal_handlers_block_by_func(
4186 sb, (void*)gtk_scrollbar_value_changed, this);
4187
4188 gtk_range_set_value(sb, pos);
4189 m_scrollPos[dir] = sb->adjustment->value;
4190
4191 g_signal_handlers_unblock_by_func(
4192 sb, (void*)gtk_scrollbar_value_changed, this);
4193 }
4194 }
4195
4196 int wxWindowGTK::GetScrollThumb(int orient) const
4197 {
4198 GtkRange * const sb = m_scrollBar[ScrollDirFromOrient(orient)];
4199 wxCHECK_MSG( sb, 0, _T("this window is not scrollable") );
4200
4201 return int(sb->adjustment->page_size);
4202 }
4203
4204 int wxWindowGTK::GetScrollPos( int orient ) const
4205 {
4206 GtkRange * const sb = m_scrollBar[ScrollDirFromOrient(orient)];
4207 wxCHECK_MSG( sb, 0, _T("this window is not scrollable") );
4208
4209 return int(sb->adjustment->value + 0.5);
4210 }
4211
4212 int wxWindowGTK::GetScrollRange( int orient ) const
4213 {
4214 GtkRange * const sb = m_scrollBar[ScrollDirFromOrient(orient)];
4215 wxCHECK_MSG( sb, 0, _T("this window is not scrollable") );
4216
4217 return int(sb->adjustment->upper);
4218 }
4219
4220 // Determine if increment is the same as +/-x, allowing for some small
4221 // difference due to possible inexactness in floating point arithmetic
4222 static inline bool IsScrollIncrement(double increment, double x)
4223 {
4224 wxASSERT(increment > 0);
4225 const double tolerance = 1.0 / 1024;
4226 return fabs(increment - fabs(x)) < tolerance;
4227 }
4228
4229 wxEventType wxWindowGTK::GetScrollEventType(GtkRange* range)
4230 {
4231 wxASSERT(range == m_scrollBar[0] || range == m_scrollBar[1]);
4232
4233 const int barIndex = range == m_scrollBar[1];
4234 GtkAdjustment* adj = range->adjustment;
4235
4236 const int value = int(adj->value + 0.5);
4237
4238 // save previous position
4239 const double oldPos = m_scrollPos[barIndex];
4240 // update current position
4241 m_scrollPos[barIndex] = adj->value;
4242 // If event should be ignored, or integral position has not changed
4243 if (!m_hasVMT || g_blockEventsOnDrag || value == int(oldPos + 0.5))
4244 {
4245 return wxEVT_NULL;
4246 }
4247
4248 wxEventType eventType = wxEVT_SCROLL_THUMBTRACK;
4249 if (!m_isScrolling)
4250 {
4251 // Difference from last change event
4252 const double diff = adj->value - oldPos;
4253 const bool isDown = diff > 0;
4254
4255 if (IsScrollIncrement(adj->step_increment, diff))
4256 {
4257 eventType = isDown ? wxEVT_SCROLL_LINEDOWN : wxEVT_SCROLL_LINEUP;
4258 }
4259 else if (IsScrollIncrement(adj->page_increment, diff))
4260 {
4261 eventType = isDown ? wxEVT_SCROLL_PAGEDOWN : wxEVT_SCROLL_PAGEUP;
4262 }
4263 else if (m_mouseButtonDown)
4264 {
4265 // Assume track event
4266 m_isScrolling = true;
4267 }
4268 }
4269 return eventType;
4270 }
4271
4272 void wxWindowGTK::ScrollWindow( int dx, int dy, const wxRect* WXUNUSED(rect) )
4273 {
4274 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4275
4276 wxCHECK_RET( m_wxwindow != NULL, wxT("window needs client area for scrolling") );
4277
4278 // No scrolling requested.
4279 if ((dx == 0) && (dy == 0)) return;
4280
4281 m_clipPaintRegion = true;
4282
4283 WX_PIZZA(m_wxwindow)->scroll(dx, dy);
4284
4285 m_clipPaintRegion = false;
4286
4287 #if wxUSE_CARET
4288 bool restoreCaret = (GetCaret() != NULL && GetCaret()->IsVisible());
4289 if (restoreCaret)
4290 {
4291 wxRect caretRect(GetCaret()->GetPosition(), GetCaret()->GetSize());
4292 if (dx > 0)
4293 caretRect.width += dx;
4294 else
4295 {
4296 caretRect.x += dx; caretRect.width -= dx;
4297 }
4298 if (dy > 0)
4299 caretRect.height += dy;
4300 else
4301 {
4302 caretRect.y += dy; caretRect.height -= dy;
4303 }
4304
4305 RefreshRect(caretRect);
4306 }
4307 #endif // wxUSE_CARET
4308 }
4309
4310 void wxWindowGTK::GtkScrolledWindowSetBorder(GtkWidget* w, int wxstyle)
4311 {
4312 //RN: Note that static controls usually have no border on gtk, so maybe
4313 //it makes sense to treat that as simply no border at the wx level
4314 //as well...
4315 if (!(wxstyle & wxNO_BORDER) && !(wxstyle & wxBORDER_STATIC))
4316 {
4317 GtkShadowType gtkstyle;
4318
4319 if(wxstyle & wxBORDER_RAISED)
4320 gtkstyle = GTK_SHADOW_OUT;
4321 else if (wxstyle & wxBORDER_SUNKEN)
4322 gtkstyle = GTK_SHADOW_IN;
4323 #if 0
4324 // Now obsolete
4325 else if (wxstyle & wxBORDER_DOUBLE)
4326 gtkstyle = GTK_SHADOW_ETCHED_IN;
4327 #endif
4328 else //default
4329 gtkstyle = GTK_SHADOW_IN;
4330
4331 gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(w),
4332 gtkstyle );
4333 }
4334 }
4335
4336 void wxWindowGTK::SetWindowStyleFlag( long style )
4337 {
4338 // Updates the internal variable. NB: Now m_windowStyle bits carry the _new_ style values already
4339 wxWindowBase::SetWindowStyleFlag(style);
4340 }
4341
4342 // Find the wxWindow at the current mouse position, also returning the mouse
4343 // position.
4344 wxWindow* wxFindWindowAtPointer(wxPoint& pt)
4345 {
4346 pt = wxGetMousePosition();
4347 wxWindow* found = wxFindWindowAtPoint(pt);
4348 return found;
4349 }
4350
4351 // Get the current mouse position.
4352 wxPoint wxGetMousePosition()
4353 {
4354 /* This crashes when used within wxHelpContext,
4355 so we have to use the X-specific implementation below.
4356 gint x, y;
4357 GdkModifierType *mask;
4358 (void) gdk_window_get_pointer(NULL, &x, &y, mask);
4359
4360 return wxPoint(x, y);
4361 */
4362
4363 int x, y;
4364 GdkWindow* windowAtPtr = gdk_window_at_pointer(& x, & y);
4365
4366 Display *display = windowAtPtr ? GDK_WINDOW_XDISPLAY(windowAtPtr) : GDK_DISPLAY();
4367 Window rootWindow = RootWindowOfScreen (DefaultScreenOfDisplay(display));
4368 Window rootReturn, childReturn;
4369 int rootX, rootY, winX, winY;
4370 unsigned int maskReturn;
4371
4372 XQueryPointer (display,
4373 rootWindow,
4374 &rootReturn,
4375 &childReturn,
4376 &rootX, &rootY, &winX, &winY, &maskReturn);
4377 return wxPoint(rootX, rootY);
4378
4379 }
4380
4381 GdkWindow* wxWindowGTK::GTKGetDrawingWindow() const
4382 {
4383 GdkWindow* window = NULL;
4384 if (m_wxwindow)
4385 window = m_wxwindow->window;
4386 return window;
4387 }
4388
4389 // ----------------------------------------------------------------------------
4390 // freeze/thaw
4391 // ----------------------------------------------------------------------------
4392
4393 extern "C"
4394 {
4395
4396 // this is called if we attempted to freeze unrealized widget when it finally
4397 // is realized (and so can be frozen):
4398 static void wx_frozen_widget_realize(GtkWidget* w, void* WXUNUSED(data))
4399 {
4400 wxASSERT( w && !GTK_WIDGET_NO_WINDOW(w) );
4401 wxASSERT( GTK_WIDGET_REALIZED(w) );
4402
4403 g_signal_handlers_disconnect_by_func
4404 (
4405 w,
4406 (void*)wx_frozen_widget_realize,
4407 NULL
4408 );
4409
4410 gdk_window_freeze_updates(w->window);
4411 }
4412
4413 } // extern "C"
4414
4415 void wxWindowGTK::GTKFreezeWidget(GtkWidget *w)
4416 {
4417 if ( !w || GTK_WIDGET_NO_WINDOW(w) )
4418 return; // window-less widget, cannot be frozen
4419
4420 if ( !GTK_WIDGET_REALIZED(w) )
4421 {
4422 // we can't thaw unrealized widgets because they don't have GdkWindow,
4423 // so set it up to be done immediately after realization:
4424 g_signal_connect_after
4425 (
4426 w,
4427 "realize",
4428 G_CALLBACK(wx_frozen_widget_realize),
4429 NULL
4430 );
4431 return;
4432 }
4433
4434 gdk_window_freeze_updates(w->window);
4435 }
4436
4437 void wxWindowGTK::GTKThawWidget(GtkWidget *w)
4438 {
4439 if ( !w || GTK_WIDGET_NO_WINDOW(w) )
4440 return; // window-less widget, cannot be frozen
4441
4442 if ( !GTK_WIDGET_REALIZED(w) )
4443 {
4444 // the widget wasn't realized yet, no need to thaw
4445 g_signal_handlers_disconnect_by_func
4446 (
4447 w,
4448 (void*)wx_frozen_widget_realize,
4449 NULL
4450 );
4451 return;
4452 }
4453
4454 gdk_window_thaw_updates(w->window);
4455 }
4456
4457 void wxWindowGTK::DoFreeze()
4458 {
4459 GTKFreezeWidget(m_widget);
4460 if ( m_wxwindow && m_widget != m_wxwindow )
4461 GTKFreezeWidget(m_wxwindow);
4462 }
4463
4464 void wxWindowGTK::DoThaw()
4465 {
4466 GTKThawWidget(m_widget);
4467 if ( m_wxwindow && m_widget != m_wxwindow )
4468 GTKThawWidget(m_wxwindow);
4469 }
wxWidgets (Impactor)