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make Ctrl-PageUp/Down work for changing notebook pages even when there is a wxWindow...
[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/frame.h"
23 #include "wx/dcclient.h"
24 #include "wx/menu.h"
25 #include "wx/settings.h"
26 #include "wx/msgdlg.h"
27 #include "wx/textctrl.h"
28 #include "wx/radiobut.h"
29 #include "wx/toolbar.h"
30 #include "wx/combobox.h"
31 #include "wx/layout.h"
32 #include "wx/math.h"
33 #endif
34
35 #include "wx/dnd.h"
36 #include "wx/tooltip.h"
37 #include "wx/caret.h"
38 #include "wx/fontutil.h"
39
40 #ifdef __WXDEBUG__
41 #include "wx/thread.h"
42 #endif
43
44 #include <ctype.h>
45
46 // FIXME: Due to a hack we use GtkCombo in here, which is deprecated since gtk2.3.0
47 #include <gtk/gtkversion.h>
48 #if defined(GTK_DISABLE_DEPRECATED) && GTK_CHECK_VERSION(2,3,0)
49 #undef GTK_DISABLE_DEPRECATED
50 #include <gtk/gtkcombo.h>
51 #define GTK_DISABLE_DEPRECATED
52 #endif
53
54 #include "wx/gtk/private.h"
55 #include "wx/gtk/win_gtk.h"
56 #include <gdk/gdkkeysyms.h>
57 #include <gdk/gdkx.h>
58
59 //-----------------------------------------------------------------------------
60 // documentation on internals
61 //-----------------------------------------------------------------------------
62
63 /*
64 I have been asked several times about writing some documentation about
65 the GTK port of wxWidgets, especially its internal structures. Obviously,
66 you cannot understand wxGTK without knowing a little about the GTK, but
67 some more information about what the wxWindow, which is the base class
68 for all other window classes, does seems required as well.
69
70 I)
71
72 What does wxWindow do? It contains the common interface for the following
73 jobs of its descendants:
74
75 1) Define the rudimentary behaviour common to all window classes, such as
76 resizing, intercepting user input (so as to make it possible to use these
77 events for special purposes in a derived class), window names etc.
78
79 2) Provide the possibility to contain and manage children, if the derived
80 class is allowed to contain children, which holds true for those window
81 classes which do not display a native GTK widget. To name them, these
82 classes are wxPanel, wxScrolledWindow, wxDialog, wxFrame. The MDI frame-
83 work classes are a special case and are handled a bit differently from
84 the rest. The same holds true for the wxNotebook class.
85
86 3) Provide the possibility to draw into a client area of a window. This,
87 too, only holds true for classes that do not display a native GTK widget
88 as above.
89
90 4) Provide the entire mechanism for scrolling widgets. This actual inter-
91 face for this is usually in wxScrolledWindow, but the GTK implementation
92 is in this class.
93
94 5) A multitude of helper or extra methods for special purposes, such as
95 Drag'n'Drop, managing validators etc.
96
97 6) Display a border (sunken, raised, simple or none).
98
99 Normally one might expect, that one wxWidgets window would always correspond
100 to one GTK widget. Under GTK, there is no such all-round widget that has all
101 the functionality. Moreover, the GTK defines a client area as a different
102 widget from the actual widget you are handling. Last but not least some
103 special classes (e.g. wxFrame) handle different categories of widgets and
104 still have the possibility to draw something in the client area.
105 It was therefore required to write a special purpose GTK widget, that would
106 represent a client area in the sense of wxWidgets capable to do the jobs
107 2), 3) and 4). I have written this class and it resides in win_gtk.c of
108 this directory.
109
110 All windows must have a widget, with which they interact with other under-
111 lying GTK widgets. It is this widget, e.g. that has to be resized etc and
112 the wxWindow class has a member variable called m_widget which holds a
113 pointer to this widget. When the window class represents a GTK native widget,
114 this is (in most cases) the only GTK widget the class manages. E.g. the
115 wxStaticText class handles only a GtkLabel widget a pointer to which you
116 can find in m_widget (defined in wxWindow)
117
118 When the class has a client area for drawing into and for containing children
119 it has to handle the client area widget (of the type GtkPizza, defined in
120 win_gtk.c), but there could be any number of widgets, handled by a class
121 The common rule for all windows is only, that the widget that interacts with
122 the rest of GTK must be referenced in m_widget and all other widgets must be
123 children of this widget on the GTK level. The top-most widget, which also
124 represents the client area, must be in the m_wxwindow field and must be of
125 the type GtkPizza.
126
127 As I said, the window classes that display a GTK native widget only have
128 one widget, so in the case of e.g. the wxButton class m_widget holds a
129 pointer to a GtkButton widget. But windows with client areas (for drawing
130 and children) have a m_widget field that is a pointer to a GtkScrolled-
131 Window and a m_wxwindow field that is pointer to a GtkPizza and this
132 one is (in the GTK sense) a child of the GtkScrolledWindow.
133
134 If the m_wxwindow field is set, then all input to this widget is inter-
135 cepted and sent to the wxWidgets class. If not, all input to the widget
136 that gets pointed to by m_widget gets intercepted and sent to the class.
137
138 II)
139
140 The design of scrolling in wxWidgets is markedly different from that offered
141 by the GTK itself and therefore we cannot simply take it as it is. In GTK,
142 clicking on a scrollbar belonging to scrolled window will inevitably move
143 the window. In wxWidgets, the scrollbar will only emit an event, send this
144 to (normally) a wxScrolledWindow and that class will call ScrollWindow()
145 which actually moves the window and its sub-windows. Note that GtkPizza
146 memorizes how much it has been scrolled but that wxWidgets forgets this
147 so that the two coordinates systems have to be kept in synch. This is done
148 in various places using the pizza->xoffset and pizza->yoffset values.
149
150 III)
151
152 Singularly the most broken code in GTK is the code that is supposed to
153 inform subwindows (child windows) about new positions. Very often, duplicate
154 events are sent without changes in size or position, equally often no
155 events are sent at all (All this is due to a bug in the GtkContainer code
156 which got fixed in GTK 1.2.6). For that reason, wxGTK completely ignores
157 GTK's own system and it simply waits for size events for toplevel windows
158 and then iterates down the respective size events to all window. This has
159 the disadvantage that windows might get size events before the GTK widget
160 actually has the reported size. This doesn't normally pose any problem, but
161 the OpenGL drawing routines rely on correct behaviour. Therefore, I have
162 added the m_nativeSizeEvents flag, which is true only for the OpenGL canvas,
163 i.e. the wxGLCanvas will emit a size event, when (and not before) the X11
164 window that is used for OpenGL output really has that size (as reported by
165 GTK).
166
167 IV)
168
169 If someone at some point of time feels the immense desire to have a look at,
170 change or attempt to optimise the Refresh() logic, this person will need an
171 intimate understanding of what "draw" and "expose" events are and what
172 they are used for, in particular when used in connection with GTK's
173 own windowless widgets. Beware.
174
175 V)
176
177 Cursors, too, have been a constant source of pleasure. The main difficulty
178 is that a GdkWindow inherits a cursor if the programmer sets a new cursor
179 for the parent. To prevent this from doing too much harm, I use idle time
180 to set the cursor over and over again, starting from the toplevel windows
181 and ending with the youngest generation (speaking of parent and child windows).
182 Also don't forget that cursors (like much else) are connected to GdkWindows,
183 not GtkWidgets and that the "window" field of a GtkWidget might very well
184 point to the GdkWindow of the parent widget (-> "window-less widget") and
185 that the two obviously have very different meanings.
186
187 */
188
189 //-----------------------------------------------------------------------------
190 // data
191 //-----------------------------------------------------------------------------
192
193 extern bool g_blockEventsOnDrag;
194 extern bool g_blockEventsOnScroll;
195 extern wxCursor g_globalCursor;
196
197 // mouse capture state: the window which has it and if the mouse is currently
198 // inside it
199 static wxWindowGTK *g_captureWindow = (wxWindowGTK*) NULL;
200 static bool g_captureWindowHasMouse = false;
201
202 wxWindowGTK *g_focusWindow = (wxWindowGTK*) NULL;
203
204 // the last window which had the focus - this is normally never NULL (except
205 // if we never had focus at all) as even when g_focusWindow is NULL it still
206 // keeps its previous value
207 wxWindowGTK *g_focusWindowLast = (wxWindowGTK*) NULL;
208
209 // If a window get the focus set but has not been realized
210 // yet, defer setting the focus to idle time.
211 wxWindowGTK *g_delayedFocus = (wxWindowGTK*) NULL;
212
213 // global variables because GTK+ DnD want to have the
214 // mouse event that caused it
215 GdkEvent *g_lastMouseEvent = (GdkEvent*) NULL;
216 int g_lastButtonNumber = 0;
217
218 extern bool g_mainThreadLocked;
219
220 //-----------------------------------------------------------------------------
221 // debug
222 //-----------------------------------------------------------------------------
223
224 #ifdef __WXDEBUG__
225
226 #if wxUSE_THREADS
227 # define DEBUG_MAIN_THREAD if (wxThread::IsMain() && g_mainThreadLocked) printf("gui reentrance");
228 #else
229 # define DEBUG_MAIN_THREAD
230 #endif
231 #else
232 #define DEBUG_MAIN_THREAD
233 #endif // Debug
234
235 // the trace mask used for the focus debugging messages
236 #define TRACE_FOCUS _T("focus")
237
238 //-----------------------------------------------------------------------------
239 // missing gdk functions
240 //-----------------------------------------------------------------------------
241
242 void
243 gdk_window_warp_pointer (GdkWindow *window,
244 gint x,
245 gint y)
246 {
247 if (!window)
248 window = gdk_get_default_root_window();
249
250 if (!GDK_WINDOW_DESTROYED(window))
251 {
252 XWarpPointer (GDK_WINDOW_XDISPLAY(window),
253 None, /* not source window -> move from anywhere */
254 GDK_WINDOW_XID(window), /* dest window */
255 0, 0, 0, 0, /* not source window -> move from anywhere */
256 x, y );
257 }
258 }
259
260 //-----------------------------------------------------------------------------
261 // local code (see below)
262 //-----------------------------------------------------------------------------
263
264 // returns the child of win which currently has focus or NULL if not found
265 //
266 // Note: can't be static, needed by textctrl.cpp.
267 wxWindow *wxFindFocusedChild(wxWindowGTK *win)
268 {
269 wxWindow *winFocus = wxWindowGTK::FindFocus();
270 if ( !winFocus )
271 return (wxWindow *)NULL;
272
273 if ( winFocus == win )
274 return (wxWindow *)win;
275
276 for ( wxWindowList::compatibility_iterator node = win->GetChildren().GetFirst();
277 node;
278 node = node->GetNext() )
279 {
280 wxWindow *child = wxFindFocusedChild(node->GetData());
281 if ( child )
282 return child;
283 }
284
285 return (wxWindow *)NULL;
286 }
287
288 static void GetScrollbarWidth(GtkWidget* widget, int& w, int& h)
289 {
290 GtkScrolledWindow* scroll_window = GTK_SCROLLED_WINDOW(widget);
291 GtkScrolledWindowClass* scroll_class = GTK_SCROLLED_WINDOW_CLASS(GTK_OBJECT_GET_CLASS(scroll_window));
292 GtkRequisition scroll_req;
293
294 w = 0;
295 if (scroll_window->vscrollbar_visible)
296 {
297 scroll_req.width = 2;
298 scroll_req.height = 2;
299 (* GTK_WIDGET_CLASS( GTK_OBJECT_GET_CLASS(scroll_window->vscrollbar) )->size_request )
300 (scroll_window->vscrollbar, &scroll_req );
301 w = scroll_req.width +
302 scroll_class->scrollbar_spacing;
303 }
304
305 h = 0;
306 if (scroll_window->hscrollbar_visible)
307 {
308 scroll_req.width = 2;
309 scroll_req.height = 2;
310 (* GTK_WIDGET_CLASS( GTK_OBJECT_GET_CLASS(scroll_window->hscrollbar) )->size_request )
311 (scroll_window->hscrollbar, &scroll_req );
312 h = scroll_req.height +
313 scroll_class->scrollbar_spacing;
314 }
315 }
316
317 static void draw_frame( GtkWidget *widget, wxWindowGTK *win )
318 {
319 // wxUniversal widgets draw the borders and scrollbars themselves
320 #ifndef __WXUNIVERSAL__
321 if (!win->m_hasVMT)
322 return;
323
324 int dx = 0;
325 int dy = 0;
326 if (GTK_WIDGET_NO_WINDOW (widget))
327 {
328 dx += widget->allocation.x;
329 dy += widget->allocation.y;
330 }
331
332 int x = dx;
333 int y = dy;
334
335 int dw = 0;
336 int dh = 0;
337 if (win->m_hasScrolling)
338 {
339 GetScrollbarWidth(widget, dw, dh);
340
341 if (win->GetLayoutDirection() == wxLayout_RightToLeft)
342 {
343 // This is actually wrong for old GTK+ version
344 // which do not display the scrollbar on the
345 // left side in RTL
346 x += dw;
347 }
348 }
349
350 int w = widget->allocation.width-dw;
351 int h = widget->allocation.height-dh;
352
353 if (win->HasFlag(wxRAISED_BORDER))
354 {
355 gtk_paint_shadow (widget->style,
356 widget->window,
357 GTK_STATE_NORMAL,
358 GTK_SHADOW_OUT,
359 NULL, NULL, NULL, // FIXME: No clipping?
360 x, y, w, h );
361 return;
362 }
363
364 if (win->HasFlag(wxSUNKEN_BORDER))
365 {
366 gtk_paint_shadow (widget->style,
367 widget->window,
368 GTK_STATE_NORMAL,
369 GTK_SHADOW_IN,
370 NULL, NULL, NULL, // FIXME: No clipping?
371 x, y, w, h );
372 return;
373 }
374
375 if (win->HasFlag(wxSIMPLE_BORDER))
376 {
377 GdkGC *gc;
378 gc = gdk_gc_new( widget->window );
379 gdk_gc_set_foreground( gc, &widget->style->black );
380 gdk_draw_rectangle( widget->window, gc, FALSE, x, y, w-1, h-1 );
381 g_object_unref (gc);
382 return;
383 }
384 #endif // __WXUNIVERSAL__
385 }
386
387 //-----------------------------------------------------------------------------
388 // "expose_event" of m_widget
389 //-----------------------------------------------------------------------------
390
391 extern "C" {
392 static gboolean
393 gtk_window_own_expose_callback( GtkWidget *widget,
394 GdkEventExpose *gdk_event,
395 wxWindowGTK *win )
396 {
397 if (gdk_event->count == 0)
398 draw_frame(widget, win);
399 return false;
400 }
401 }
402
403 //-----------------------------------------------------------------------------
404 // "size_request" of m_widget
405 //-----------------------------------------------------------------------------
406
407 // make it extern because wxStaticText needs to disconnect this one
408 extern "C" {
409 void wxgtk_window_size_request_callback(GtkWidget *widget,
410 GtkRequisition *requisition,
411 wxWindow *win)
412 {
413 int w, h;
414 win->GetSize( &w, &h );
415 if (w < 2)
416 w = 2;
417 if (h < 2)
418 h = 2;
419
420 requisition->height = h;
421 requisition->width = w;
422 }
423 }
424
425 extern "C" {
426 static
427 void wxgtk_combo_size_request_callback(GtkWidget *widget,
428 GtkRequisition *requisition,
429 wxComboBox *win)
430 {
431 // This callback is actually hooked into the text entry
432 // of the combo box, not the GtkHBox.
433
434 int w, h;
435 win->GetSize( &w, &h );
436 if (w < 2)
437 w = 2;
438 if (h < 2)
439 h = 2;
440
441 GtkCombo *gcombo = GTK_COMBO(win->m_widget);
442
443 GtkRequisition entry_req;
444 entry_req.width = 2;
445 entry_req.height = 2;
446 (* GTK_WIDGET_CLASS( GTK_OBJECT_GET_CLASS(gcombo->entry) )->size_request )
447 (gcombo->entry, &entry_req );
448
449 GtkRequisition button_req;
450 button_req.width = 2;
451 button_req.height = 2;
452 (* GTK_WIDGET_CLASS( GTK_OBJECT_GET_CLASS(gcombo->button) )->size_request )
453 (gcombo->button, &button_req );
454
455 requisition->width = w - button_req.width;
456 requisition->height = entry_req.height;
457 }
458 }
459
460 //-----------------------------------------------------------------------------
461 // "expose_event" of m_wxwindow
462 //-----------------------------------------------------------------------------
463
464 extern "C" {
465 static gboolean
466 gtk_window_expose_callback( GtkWidget *widget,
467 GdkEventExpose *gdk_event,
468 wxWindow *win )
469 {
470 DEBUG_MAIN_THREAD
471
472 // don't need to install idle handler, its done from "event" signal
473
474 // This callback gets called in drawing-idle time under
475 // GTK 2.0, so we don't need to defer anything to idle
476 // time anymore.
477
478 GtkPizza *pizza = GTK_PIZZA( widget );
479 if (gdk_event->window != pizza->bin_window)
480 {
481 // block expose events on GTK_WIDGET(pizza)->window,
482 // all drawing is done on pizza->bin_window
483 return true;
484 }
485
486
487 #if 0
488 if (win->GetName())
489 {
490 wxPrintf( wxT("OnExpose from ") );
491 if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
492 wxPrintf( win->GetClassInfo()->GetClassName() );
493 wxPrintf( wxT(" %d %d %d %d\n"), (int)gdk_event->area.x,
494 (int)gdk_event->area.y,
495 (int)gdk_event->area.width,
496 (int)gdk_event->area.height );
497 }
498
499 gtk_paint_box
500 (
501 win->m_wxwindow->style,
502 pizza->bin_window,
503 GTK_STATE_NORMAL,
504 GTK_SHADOW_OUT,
505 (GdkRectangle*) NULL,
506 win->m_wxwindow,
507 (char *)"button", // const_cast
508 20,20,24,24
509 );
510 #endif
511
512 win->GetUpdateRegion() = wxRegion( gdk_event->region );
513
514 win->GtkSendPaintEvents();
515
516 // Let parent window draw window-less widgets
517 return FALSE;
518 }
519 }
520
521 //-----------------------------------------------------------------------------
522 // "key_press_event" from any window
523 //-----------------------------------------------------------------------------
524
525 // These are used when transforming Ctrl-alpha to ascii values 1-26
526 inline bool wxIsLowerChar(int code)
527 {
528 return (code >= 'a' && code <= 'z' );
529 }
530
531 inline bool wxIsUpperChar(int code)
532 {
533 return (code >= 'A' && code <= 'Z' );
534 }
535
536
537 // set WXTRACE to this to see the key event codes on the console
538 #define TRACE_KEYS _T("keyevent")
539
540 // translates an X key symbol to WXK_XXX value
541 //
542 // if isChar is true it means that the value returned will be used for EVT_CHAR
543 // event and then we choose the logical WXK_XXX, i.e. '/' for GDK_KP_Divide,
544 // for example, while if it is false it means that the value is going to be
545 // used for KEY_DOWN/UP events and then we translate GDK_KP_Divide to
546 // WXK_NUMPAD_DIVIDE
547 static long wxTranslateKeySymToWXKey(KeySym keysym, bool isChar)
548 {
549 long key_code;
550
551 switch ( keysym )
552 {
553 // Shift, Control and Alt don't generate the CHAR events at all
554 case GDK_Shift_L:
555 case GDK_Shift_R:
556 key_code = isChar ? 0 : WXK_SHIFT;
557 break;
558 case GDK_Control_L:
559 case GDK_Control_R:
560 key_code = isChar ? 0 : WXK_CONTROL;
561 break;
562 case GDK_Meta_L:
563 case GDK_Meta_R:
564 case GDK_Alt_L:
565 case GDK_Alt_R:
566 case GDK_Super_L:
567 case GDK_Super_R:
568 key_code = isChar ? 0 : WXK_ALT;
569 break;
570
571 // neither do the toggle modifies
572 case GDK_Scroll_Lock:
573 key_code = isChar ? 0 : WXK_SCROLL;
574 break;
575
576 case GDK_Caps_Lock:
577 key_code = isChar ? 0 : WXK_CAPITAL;
578 break;
579
580 case GDK_Num_Lock:
581 key_code = isChar ? 0 : WXK_NUMLOCK;
582 break;
583
584
585 // various other special keys
586 case GDK_Menu:
587 key_code = WXK_MENU;
588 break;
589
590 case GDK_Help:
591 key_code = WXK_HELP;
592 break;
593
594 case GDK_BackSpace:
595 key_code = WXK_BACK;
596 break;
597
598 case GDK_ISO_Left_Tab:
599 case GDK_Tab:
600 key_code = WXK_TAB;
601 break;
602
603 case GDK_Linefeed:
604 case GDK_Return:
605 key_code = WXK_RETURN;
606 break;
607
608 case GDK_Clear:
609 key_code = WXK_CLEAR;
610 break;
611
612 case GDK_Pause:
613 key_code = WXK_PAUSE;
614 break;
615
616 case GDK_Select:
617 key_code = WXK_SELECT;
618 break;
619
620 case GDK_Print:
621 key_code = WXK_PRINT;
622 break;
623
624 case GDK_Execute:
625 key_code = WXK_EXECUTE;
626 break;
627
628 case GDK_Escape:
629 key_code = WXK_ESCAPE;
630 break;
631
632 // cursor and other extended keyboard keys
633 case GDK_Delete:
634 key_code = WXK_DELETE;
635 break;
636
637 case GDK_Home:
638 key_code = WXK_HOME;
639 break;
640
641 case GDK_Left:
642 key_code = WXK_LEFT;
643 break;
644
645 case GDK_Up:
646 key_code = WXK_UP;
647 break;
648
649 case GDK_Right:
650 key_code = WXK_RIGHT;
651 break;
652
653 case GDK_Down:
654 key_code = WXK_DOWN;
655 break;
656
657 case GDK_Prior: // == GDK_Page_Up
658 key_code = WXK_PAGEUP;
659 break;
660
661 case GDK_Next: // == GDK_Page_Down
662 key_code = WXK_PAGEDOWN;
663 break;
664
665 case GDK_End:
666 key_code = WXK_END;
667 break;
668
669 case GDK_Begin:
670 key_code = WXK_HOME;
671 break;
672
673 case GDK_Insert:
674 key_code = WXK_INSERT;
675 break;
676
677
678 // numpad keys
679 case GDK_KP_0:
680 case GDK_KP_1:
681 case GDK_KP_2:
682 case GDK_KP_3:
683 case GDK_KP_4:
684 case GDK_KP_5:
685 case GDK_KP_6:
686 case GDK_KP_7:
687 case GDK_KP_8:
688 case GDK_KP_9:
689 key_code = (isChar ? '0' : WXK_NUMPAD0) + keysym - GDK_KP_0;
690 break;
691
692 case GDK_KP_Space:
693 key_code = isChar ? ' ' : WXK_NUMPAD_SPACE;
694 break;
695
696 case GDK_KP_Tab:
697 key_code = isChar ? WXK_TAB : WXK_NUMPAD_TAB;
698 break;
699
700 case GDK_KP_Enter:
701 key_code = isChar ? WXK_RETURN : WXK_NUMPAD_ENTER;
702 break;
703
704 case GDK_KP_F1:
705 key_code = isChar ? WXK_F1 : WXK_NUMPAD_F1;
706 break;
707
708 case GDK_KP_F2:
709 key_code = isChar ? WXK_F2 : WXK_NUMPAD_F2;
710 break;
711
712 case GDK_KP_F3:
713 key_code = isChar ? WXK_F3 : WXK_NUMPAD_F3;
714 break;
715
716 case GDK_KP_F4:
717 key_code = isChar ? WXK_F4 : WXK_NUMPAD_F4;
718 break;
719
720 case GDK_KP_Home:
721 key_code = isChar ? WXK_HOME : WXK_NUMPAD_HOME;
722 break;
723
724 case GDK_KP_Left:
725 key_code = isChar ? WXK_LEFT : WXK_NUMPAD_LEFT;
726 break;
727
728 case GDK_KP_Up:
729 key_code = isChar ? WXK_UP : WXK_NUMPAD_UP;
730 break;
731
732 case GDK_KP_Right:
733 key_code = isChar ? WXK_RIGHT : WXK_NUMPAD_RIGHT;
734 break;
735
736 case GDK_KP_Down:
737 key_code = isChar ? WXK_DOWN : WXK_NUMPAD_DOWN;
738 break;
739
740 case GDK_KP_Prior: // == GDK_KP_Page_Up
741 key_code = isChar ? WXK_PAGEUP : WXK_NUMPAD_PAGEUP;
742 break;
743
744 case GDK_KP_Next: // == GDK_KP_Page_Down
745 key_code = isChar ? WXK_PAGEDOWN : WXK_NUMPAD_PAGEDOWN;
746 break;
747
748 case GDK_KP_End:
749 key_code = isChar ? WXK_END : WXK_NUMPAD_END;
750 break;
751
752 case GDK_KP_Begin:
753 key_code = isChar ? WXK_HOME : WXK_NUMPAD_BEGIN;
754 break;
755
756 case GDK_KP_Insert:
757 key_code = isChar ? WXK_INSERT : WXK_NUMPAD_INSERT;
758 break;
759
760 case GDK_KP_Delete:
761 key_code = isChar ? WXK_DELETE : WXK_NUMPAD_DELETE;
762 break;
763
764 case GDK_KP_Equal:
765 key_code = isChar ? '=' : WXK_NUMPAD_EQUAL;
766 break;
767
768 case GDK_KP_Multiply:
769 key_code = isChar ? '*' : WXK_NUMPAD_MULTIPLY;
770 break;
771
772 case GDK_KP_Add:
773 key_code = isChar ? '+' : WXK_NUMPAD_ADD;
774 break;
775
776 case GDK_KP_Separator:
777 // FIXME: what is this?
778 key_code = isChar ? '.' : WXK_NUMPAD_SEPARATOR;
779 break;
780
781 case GDK_KP_Subtract:
782 key_code = isChar ? '-' : WXK_NUMPAD_SUBTRACT;
783 break;
784
785 case GDK_KP_Decimal:
786 key_code = isChar ? '.' : WXK_NUMPAD_DECIMAL;
787 break;
788
789 case GDK_KP_Divide:
790 key_code = isChar ? '/' : WXK_NUMPAD_DIVIDE;
791 break;
792
793
794 // function keys
795 case GDK_F1:
796 case GDK_F2:
797 case GDK_F3:
798 case GDK_F4:
799 case GDK_F5:
800 case GDK_F6:
801 case GDK_F7:
802 case GDK_F8:
803 case GDK_F9:
804 case GDK_F10:
805 case GDK_F11:
806 case GDK_F12:
807 key_code = WXK_F1 + keysym - GDK_F1;
808 break;
809
810 default:
811 key_code = 0;
812 }
813
814 return key_code;
815 }
816
817 static inline bool wxIsAsciiKeysym(KeySym ks)
818 {
819 return ks < 256;
820 }
821
822 static void wxFillOtherKeyEventFields(wxKeyEvent& event,
823 wxWindowGTK *win,
824 GdkEventKey *gdk_event)
825 {
826 int x = 0;
827 int y = 0;
828 GdkModifierType state;
829 if (gdk_event->window)
830 gdk_window_get_pointer(gdk_event->window, &x, &y, &state);
831
832 event.SetTimestamp( gdk_event->time );
833 event.SetId(win->GetId());
834 event.m_shiftDown = (gdk_event->state & GDK_SHIFT_MASK) != 0;
835 event.m_controlDown = (gdk_event->state & GDK_CONTROL_MASK) != 0;
836 event.m_altDown = (gdk_event->state & GDK_MOD1_MASK) != 0;
837 event.m_metaDown = (gdk_event->state & GDK_MOD2_MASK) != 0;
838 event.m_scanCode = gdk_event->keyval;
839 event.m_rawCode = (wxUint32) gdk_event->keyval;
840 event.m_rawFlags = 0;
841 #if wxUSE_UNICODE
842 event.m_uniChar = gdk_keyval_to_unicode(gdk_event->keyval);
843 #endif
844 wxGetMousePosition( &x, &y );
845 win->ScreenToClient( &x, &y );
846 event.m_x = x;
847 event.m_y = y;
848 event.SetEventObject( win );
849 }
850
851
852 static bool
853 wxTranslateGTKKeyEventToWx(wxKeyEvent& event,
854 wxWindowGTK *win,
855 GdkEventKey *gdk_event)
856 {
857 // VZ: it seems that GDK_KEY_RELEASE event doesn't set event->string
858 // but only event->keyval which is quite useless to us, so remember
859 // the last character from GDK_KEY_PRESS and reuse it as last resort
860 //
861 // NB: should be MT-safe as we're always called from the main thread only
862 static struct
863 {
864 KeySym keysym;
865 long keycode;
866 } s_lastKeyPress = { 0, 0 };
867
868 KeySym keysym = gdk_event->keyval;
869
870 wxLogTrace(TRACE_KEYS, _T("Key %s event: keysym = %ld"),
871 event.GetEventType() == wxEVT_KEY_UP ? _T("release")
872 : _T("press"),
873 keysym);
874
875 long key_code = wxTranslateKeySymToWXKey(keysym, false /* !isChar */);
876
877 if ( !key_code )
878 {
879 // do we have the translation or is it a plain ASCII character?
880 if ( (gdk_event->length == 1) || wxIsAsciiKeysym(keysym) )
881 {
882 // we should use keysym if it is ASCII as X does some translations
883 // like "I pressed while Control is down" => "Ctrl-I" == "TAB"
884 // which we don't want here (but which we do use for OnChar())
885 if ( !wxIsAsciiKeysym(keysym) )
886 {
887 keysym = (KeySym)gdk_event->string[0];
888 }
889
890 // we want to always get the same key code when the same key is
891 // pressed regardless of the state of the modifiers, i.e. on a
892 // standard US keyboard pressing '5' or '%' ('5' key with
893 // Shift) should result in the same key code in OnKeyDown():
894 // '5' (although OnChar() will get either '5' or '%').
895 //
896 // to do it we first translate keysym to keycode (== scan code)
897 // and then back but always using the lower register
898 Display *dpy = (Display *)wxGetDisplay();
899 KeyCode keycode = XKeysymToKeycode(dpy, keysym);
900
901 wxLogTrace(TRACE_KEYS, _T("\t-> keycode %d"), keycode);
902
903 KeySym keysymNormalized = XKeycodeToKeysym(dpy, keycode, 0);
904
905 // use the normalized, i.e. lower register, keysym if we've
906 // got one
907 key_code = keysymNormalized ? keysymNormalized : keysym;
908
909 // as explained above, we want to have lower register key codes
910 // normally but for the letter keys we want to have the upper ones
911 //
912 // NB: don't use XConvertCase() here, we want to do it for letters
913 // only
914 key_code = toupper(key_code);
915 }
916 else // non ASCII key, what to do?
917 {
918 // by default, ignore it
919 key_code = 0;
920
921 // but if we have cached information from the last KEY_PRESS
922 if ( gdk_event->type == GDK_KEY_RELEASE )
923 {
924 // then reuse it
925 if ( keysym == s_lastKeyPress.keysym )
926 {
927 key_code = s_lastKeyPress.keycode;
928 }
929 }
930 }
931
932 if ( gdk_event->type == GDK_KEY_PRESS )
933 {
934 // remember it to be reused for KEY_UP event later
935 s_lastKeyPress.keysym = keysym;
936 s_lastKeyPress.keycode = key_code;
937 }
938 }
939
940 wxLogTrace(TRACE_KEYS, _T("\t-> wxKeyCode %ld"), key_code);
941
942 // sending unknown key events doesn't really make sense
943 if ( !key_code )
944 return false;
945
946 // now fill all the other fields
947 wxFillOtherKeyEventFields(event, win, gdk_event);
948
949 event.m_keyCode = key_code;
950 #if wxUSE_UNICODE
951 if ( gdk_event->type == GDK_KEY_PRESS || gdk_event->type == GDK_KEY_RELEASE )
952 {
953 event.m_uniChar = key_code;
954 }
955 #endif
956
957 return true;
958 }
959
960
961 struct wxGtkIMData
962 {
963 GtkIMContext *context;
964 GdkEventKey *lastKeyEvent;
965
966 wxGtkIMData()
967 {
968 context = gtk_im_multicontext_new();
969 lastKeyEvent = NULL;
970 }
971 ~wxGtkIMData()
972 {
973 g_object_unref (context);
974 }
975 };
976
977 extern "C" {
978 static gboolean
979 gtk_window_key_press_callback( GtkWidget *widget,
980 GdkEventKey *gdk_event,
981 wxWindow *win )
982 {
983 DEBUG_MAIN_THREAD
984
985 // don't need to install idle handler, its done from "event" signal
986
987 if (!win->m_hasVMT)
988 return FALSE;
989 if (g_blockEventsOnDrag)
990 return FALSE;
991
992
993 wxKeyEvent event( wxEVT_KEY_DOWN );
994 bool ret = false;
995 bool return_after_IM = false;
996
997 if( wxTranslateGTKKeyEventToWx(event, win, gdk_event) )
998 {
999 // Emit KEY_DOWN event
1000 ret = win->GetEventHandler()->ProcessEvent( event );
1001 }
1002 else
1003 {
1004 // Return after IM processing as we cannot do
1005 // anything with it anyhow.
1006 return_after_IM = true;
1007 }
1008
1009 // 2005.01.26 modified by Hong Jen Yee (hzysoft@sina.com.tw):
1010 // When we get a key_press event here, it could be originate
1011 // from the current widget or its child widgets. However, only the widget
1012 // with the INPUT FOCUS can generate the INITIAL key_press event. That is,
1013 // if the CURRENT widget doesn't have the FOCUS at all, this event definitely
1014 // originated from its child widgets and shouldn't be passed to IM context.
1015 // In fact, what a GTK+ IM should do is filtering keyEvents and convert them
1016 // into text input ONLY WHEN THE WIDGET HAS INPUT FOCUS. Besides, when current
1017 // widgets has both IM context and input focus, the event should be filtered
1018 // by gtk_im_context_filter_keypress().
1019 // Then, we should, according to GTK+ 2.0 API doc, return whatever it returns.
1020 if ((!ret) && (win->m_imData != NULL) && ( wxWindow::FindFocus() == win ))
1021 {
1022 // We should let GTK+ IM filter key event first. According to GTK+ 2.0 API
1023 // docs, if IM filter returns true, no further processing should be done.
1024 // we should send the key_down event anyway.
1025 bool intercepted_by_IM = gtk_im_context_filter_keypress(win->m_imData->context, gdk_event);
1026 win->m_imData->lastKeyEvent = NULL;
1027 if (intercepted_by_IM)
1028 {
1029 wxLogTrace(TRACE_KEYS, _T("Key event intercepted by IM"));
1030 return TRUE;
1031 }
1032 }
1033
1034 if (return_after_IM)
1035 return FALSE;
1036
1037 #if wxUSE_ACCEL
1038 if (!ret)
1039 {
1040 wxWindowGTK *ancestor = win;
1041 while (ancestor)
1042 {
1043 int command = ancestor->GetAcceleratorTable()->GetCommand( event );
1044 if (command != -1)
1045 {
1046 wxCommandEvent command_event( wxEVT_COMMAND_MENU_SELECTED, command );
1047 ret = ancestor->GetEventHandler()->ProcessEvent( command_event );
1048 break;
1049 }
1050 if (ancestor->IsTopLevel())
1051 break;
1052 ancestor = ancestor->GetParent();
1053 }
1054 }
1055 #endif // wxUSE_ACCEL
1056
1057 // Only send wxEVT_CHAR event if not processed yet. Thus, ALT-x
1058 // will only be sent if it is not in an accelerator table.
1059 if (!ret)
1060 {
1061 long key_code;
1062 KeySym keysym = gdk_event->keyval;
1063 // Find key code for EVT_CHAR and EVT_CHAR_HOOK events
1064 key_code = wxTranslateKeySymToWXKey(keysym, true /* isChar */);
1065 if ( !key_code )
1066 {
1067 if ( wxIsAsciiKeysym(keysym) )
1068 {
1069 // ASCII key
1070 key_code = (unsigned char)keysym;
1071 }
1072 // gdk_event->string is actually deprecated
1073 else if ( gdk_event->length == 1 )
1074 {
1075 key_code = (unsigned char)gdk_event->string[0];
1076 }
1077 }
1078
1079 if ( key_code )
1080 {
1081 wxLogTrace(TRACE_KEYS, _T("Char event: %ld"), key_code);
1082
1083 event.m_keyCode = key_code;
1084
1085 // To conform to the docs we need to translate Ctrl-alpha
1086 // characters to values in the range 1-26.
1087 if ( event.ControlDown() &&
1088 ( wxIsLowerChar(key_code) || wxIsUpperChar(key_code) ))
1089 {
1090 if ( wxIsLowerChar(key_code) )
1091 event.m_keyCode = key_code - 'a' + 1;
1092 if ( wxIsUpperChar(key_code) )
1093 event.m_keyCode = key_code - 'A' + 1;
1094 #if wxUSE_UNICODE
1095 event.m_uniChar = event.m_keyCode;
1096 #endif
1097 }
1098
1099 // Implement OnCharHook by checking ancestor top level windows
1100 wxWindow *parent = win;
1101 while (parent && !parent->IsTopLevel())
1102 parent = parent->GetParent();
1103 if (parent)
1104 {
1105 event.SetEventType( wxEVT_CHAR_HOOK );
1106 ret = parent->GetEventHandler()->ProcessEvent( event );
1107 }
1108
1109 if (!ret)
1110 {
1111 event.SetEventType(wxEVT_CHAR);
1112 ret = win->GetEventHandler()->ProcessEvent( event );
1113 }
1114 }
1115 }
1116
1117 return ret;
1118 }
1119 }
1120
1121 extern "C" {
1122 static void
1123 gtk_wxwindow_commit_cb (GtkIMContext *context,
1124 const gchar *str,
1125 wxWindow *window)
1126 {
1127 wxKeyEvent event( wxEVT_KEY_DOWN );
1128
1129 // take modifiers, cursor position, timestamp etc. from the last
1130 // key_press_event that was fed into Input Method:
1131 if (window->m_imData->lastKeyEvent)
1132 {
1133 wxFillOtherKeyEventFields(event,
1134 window, window->m_imData->lastKeyEvent);
1135 }
1136
1137 const wxWxCharBuffer data(wxGTK_CONV_BACK_SYS(str));
1138 if( !data )
1139 return;
1140
1141 bool ret = false;
1142
1143 // Implement OnCharHook by checking ancestor top level windows
1144 wxWindow *parent = window;
1145 while (parent && !parent->IsTopLevel())
1146 parent = parent->GetParent();
1147
1148 for( const wxChar* pstr = data; *pstr; pstr++ )
1149 {
1150 #if wxUSE_UNICODE
1151 event.m_uniChar = *pstr;
1152 // Backward compatible for ISO-8859-1
1153 event.m_keyCode = *pstr < 256 ? event.m_uniChar : 0;
1154 wxLogTrace(TRACE_KEYS, _T("IM sent character '%c'"), event.m_uniChar);
1155 #else
1156 event.m_keyCode = *pstr;
1157 #endif // wxUSE_UNICODE
1158
1159 // To conform to the docs we need to translate Ctrl-alpha
1160 // characters to values in the range 1-26.
1161 if ( event.ControlDown() &&
1162 ( wxIsLowerChar(*pstr) || wxIsUpperChar(*pstr) ))
1163 {
1164 if ( wxIsLowerChar(*pstr) )
1165 event.m_keyCode = *pstr - 'a' + 1;
1166 if ( wxIsUpperChar(*pstr) )
1167 event.m_keyCode = *pstr - 'A' + 1;
1168
1169 event.m_keyCode = *pstr - 'a' + 1;
1170 #if wxUSE_UNICODE
1171 event.m_uniChar = event.m_keyCode;
1172 #endif
1173 }
1174
1175 if (parent)
1176 {
1177 event.SetEventType( wxEVT_CHAR_HOOK );
1178 ret = parent->GetEventHandler()->ProcessEvent( event );
1179 }
1180
1181 if (!ret)
1182 {
1183 event.SetEventType(wxEVT_CHAR);
1184 ret = window->GetEventHandler()->ProcessEvent( event );
1185 }
1186 }
1187 }
1188 }
1189
1190
1191 //-----------------------------------------------------------------------------
1192 // "key_release_event" from any window
1193 //-----------------------------------------------------------------------------
1194
1195 extern "C" {
1196 static gboolean
1197 gtk_window_key_release_callback( GtkWidget *widget,
1198 GdkEventKey *gdk_event,
1199 wxWindowGTK *win )
1200 {
1201 DEBUG_MAIN_THREAD
1202
1203 // don't need to install idle handler, its done from "event" signal
1204
1205 if (!win->m_hasVMT)
1206 return FALSE;
1207
1208 if (g_blockEventsOnDrag)
1209 return FALSE;
1210
1211 wxKeyEvent event( wxEVT_KEY_UP );
1212 if ( !wxTranslateGTKKeyEventToWx(event, win, gdk_event) )
1213 {
1214 // unknown key pressed, ignore (the event would be useless anyhow)
1215 return FALSE;
1216 }
1217
1218 return win->GTKProcessEvent(event);
1219 }
1220 }
1221
1222 // ============================================================================
1223 // the mouse events
1224 // ============================================================================
1225
1226 // ----------------------------------------------------------------------------
1227 // mouse event processing helpers
1228 // ----------------------------------------------------------------------------
1229
1230 // init wxMouseEvent with the info from GdkEventXXX struct
1231 template<typename T> void InitMouseEvent(wxWindowGTK *win,
1232 wxMouseEvent& event,
1233 T *gdk_event)
1234 {
1235 event.SetTimestamp( gdk_event->time );
1236 event.m_shiftDown = (gdk_event->state & GDK_SHIFT_MASK);
1237 event.m_controlDown = (gdk_event->state & GDK_CONTROL_MASK);
1238 event.m_altDown = (gdk_event->state & GDK_MOD1_MASK);
1239 event.m_metaDown = (gdk_event->state & GDK_MOD2_MASK);
1240 event.m_leftDown = (gdk_event->state & GDK_BUTTON1_MASK);
1241 event.m_middleDown = (gdk_event->state & GDK_BUTTON2_MASK);
1242 event.m_rightDown = (gdk_event->state & GDK_BUTTON3_MASK);
1243 if (event.GetEventType() == wxEVT_MOUSEWHEEL)
1244 {
1245 event.m_linesPerAction = 3;
1246 event.m_wheelDelta = 120;
1247 if (((GdkEventButton*)gdk_event)->button == 4)
1248 event.m_wheelRotation = 120;
1249 else if (((GdkEventButton*)gdk_event)->button == 5)
1250 event.m_wheelRotation = -120;
1251 }
1252
1253 wxPoint pt = win->GetClientAreaOrigin();
1254 event.m_x = (wxCoord)gdk_event->x - pt.x;
1255 event.m_y = (wxCoord)gdk_event->y - pt.y;
1256
1257 if ((win->m_wxwindow) && (win->GetLayoutDirection() == wxLayout_RightToLeft))
1258 {
1259 // origin in the upper right corner
1260 int window_width = gtk_pizza_get_rtl_offset( GTK_PIZZA(win->m_wxwindow) );
1261 event.m_x = window_width - event.m_x;
1262 }
1263
1264 event.SetEventObject( win );
1265 event.SetId( win->GetId() );
1266 event.SetTimestamp( gdk_event->time );
1267 }
1268
1269 static void AdjustEventButtonState(wxMouseEvent& event)
1270 {
1271 // GDK reports the old state of the button for a button press event, but
1272 // for compatibility with MSW and common sense we want m_leftDown be TRUE
1273 // for a LEFT_DOWN event, not FALSE, so we will invert
1274 // left/right/middleDown for the corresponding click events
1275
1276 if ((event.GetEventType() == wxEVT_LEFT_DOWN) ||
1277 (event.GetEventType() == wxEVT_LEFT_DCLICK) ||
1278 (event.GetEventType() == wxEVT_LEFT_UP))
1279 {
1280 event.m_leftDown = !event.m_leftDown;
1281 return;
1282 }
1283
1284 if ((event.GetEventType() == wxEVT_MIDDLE_DOWN) ||
1285 (event.GetEventType() == wxEVT_MIDDLE_DCLICK) ||
1286 (event.GetEventType() == wxEVT_MIDDLE_UP))
1287 {
1288 event.m_middleDown = !event.m_middleDown;
1289 return;
1290 }
1291
1292 if ((event.GetEventType() == wxEVT_RIGHT_DOWN) ||
1293 (event.GetEventType() == wxEVT_RIGHT_DCLICK) ||
1294 (event.GetEventType() == wxEVT_RIGHT_UP))
1295 {
1296 event.m_rightDown = !event.m_rightDown;
1297 return;
1298 }
1299 }
1300
1301 // find the window to send the mouse event too
1302 static
1303 wxWindowGTK *FindWindowForMouseEvent(wxWindowGTK *win, wxCoord& x, wxCoord& y)
1304 {
1305 wxCoord xx = x;
1306 wxCoord yy = y;
1307
1308 if (win->m_wxwindow)
1309 {
1310 GtkPizza *pizza = GTK_PIZZA(win->m_wxwindow);
1311 xx += gtk_pizza_get_xoffset( pizza );
1312 yy += gtk_pizza_get_yoffset( pizza );
1313 }
1314
1315 wxWindowList::compatibility_iterator node = win->GetChildren().GetFirst();
1316 while (node)
1317 {
1318 wxWindowGTK *child = node->GetData();
1319
1320 node = node->GetNext();
1321 if (!child->IsShown())
1322 continue;
1323
1324 if (child->IsTransparentForMouse())
1325 {
1326 // wxStaticBox is transparent in the box itself
1327 int xx1 = child->m_x;
1328 int yy1 = child->m_y;
1329 int xx2 = child->m_x + child->m_width;
1330 int yy2 = child->m_y + child->m_height;
1331
1332 // left
1333 if (((xx >= xx1) && (xx <= xx1+10) && (yy >= yy1) && (yy <= yy2)) ||
1334 // right
1335 ((xx >= xx2-10) && (xx <= xx2) && (yy >= yy1) && (yy <= yy2)) ||
1336 // top
1337 ((xx >= xx1) && (xx <= xx2) && (yy >= yy1) && (yy <= yy1+10)) ||
1338 // bottom
1339 ((xx >= xx1) && (xx <= xx2) && (yy >= yy2-1) && (yy <= yy2)))
1340 {
1341 win = child;
1342 x -= child->m_x;
1343 y -= child->m_y;
1344 break;
1345 }
1346
1347 }
1348 else
1349 {
1350 if ((child->m_wxwindow == (GtkWidget*) NULL) &&
1351 (child->m_x <= xx) &&
1352 (child->m_y <= yy) &&
1353 (child->m_x+child->m_width >= xx) &&
1354 (child->m_y+child->m_height >= yy))
1355 {
1356 win = child;
1357 x -= child->m_x;
1358 y -= child->m_y;
1359 break;
1360 }
1361 }
1362 }
1363
1364 return win;
1365 }
1366
1367 // ----------------------------------------------------------------------------
1368 // common event handlers helpers
1369 // ----------------------------------------------------------------------------
1370
1371 bool wxWindowGTK::GTKProcessEvent(wxEvent& event) const
1372 {
1373 // nothing special at this level
1374 return GetEventHandler()->ProcessEvent(event);
1375 }
1376
1377 int wxWindowGTK::GTKCallbackCommonPrologue(GdkEventAny *event) const
1378 {
1379 DEBUG_MAIN_THREAD
1380
1381 // don't need to install idle handler, its done from "event" signal
1382
1383 if (!m_hasVMT)
1384 return FALSE;
1385 if (g_blockEventsOnDrag)
1386 return TRUE;
1387 if (g_blockEventsOnScroll)
1388 return TRUE;
1389
1390 if (!GTKIsOwnWindow(event->window))
1391 return FALSE;
1392
1393 return -1;
1394 }
1395
1396 // overloads for all GDK event types we use here: we need to have this as
1397 // GdkEventXXX can't be implicitly cast to GdkEventAny even if it, in fact,
1398 // derives from it in the sense that the structs have the same layout
1399 #define wxDEFINE_COMMON_PROLOGUE_OVERLOAD(T) \
1400 static int wxGtkCallbackCommonPrologue(T *event, wxWindowGTK *win) \
1401 { \
1402 return win->GTKCallbackCommonPrologue((GdkEventAny *)event); \
1403 }
1404
1405 wxDEFINE_COMMON_PROLOGUE_OVERLOAD(GdkEventButton)
1406 wxDEFINE_COMMON_PROLOGUE_OVERLOAD(GdkEventMotion)
1407 wxDEFINE_COMMON_PROLOGUE_OVERLOAD(GdkEventCrossing)
1408
1409 #undef wxDEFINE_COMMON_PROLOGUE_OVERLOAD
1410
1411 #define wxCOMMON_CALLBACK_PROLOGUE(event, win) \
1412 const int rc = wxGtkCallbackCommonPrologue(event, win); \
1413 if ( rc != -1 ) \
1414 return rc
1415
1416 // send the wxChildFocusEvent and wxFocusEvent, common code of
1417 // gtk_window_focus_in_callback() and SetFocus()
1418 static bool DoSendFocusEvents(wxWindow *win)
1419 {
1420 // Notify the parent keeping track of focus for the kbd navigation
1421 // purposes that we got it.
1422 wxChildFocusEvent eventChildFocus(win);
1423 (void)win->GetEventHandler()->ProcessEvent(eventChildFocus);
1424
1425 wxFocusEvent eventFocus(wxEVT_SET_FOCUS, win->GetId());
1426 eventFocus.SetEventObject(win);
1427
1428 return win->GetEventHandler()->ProcessEvent(eventFocus);
1429 }
1430
1431 // all event handlers must have C linkage as they're called from GTK+ C code
1432 extern "C"
1433 {
1434
1435 //-----------------------------------------------------------------------------
1436 // "button_press_event"
1437 //-----------------------------------------------------------------------------
1438
1439 static gboolean
1440 gtk_window_button_press_callback( GtkWidget *widget,
1441 GdkEventButton *gdk_event,
1442 wxWindowGTK *win )
1443 {
1444 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1445
1446 g_lastButtonNumber = gdk_event->button;
1447
1448 if (win->m_wxwindow && (g_focusWindow != win) && win->CanAcceptFocus())
1449 {
1450 gtk_widget_grab_focus( win->m_wxwindow );
1451 }
1452
1453 // GDK sends surplus button down events
1454 // before a double click event. We
1455 // need to filter these out.
1456 if ((gdk_event->type == GDK_BUTTON_PRESS) && (win->m_wxwindow))
1457 {
1458 GdkEvent *peek_event = gdk_event_peek();
1459 if (peek_event)
1460 {
1461 if ((peek_event->type == GDK_2BUTTON_PRESS) ||
1462 (peek_event->type == GDK_3BUTTON_PRESS))
1463 {
1464 gdk_event_free( peek_event );
1465 return TRUE;
1466 }
1467 else
1468 {
1469 gdk_event_free( peek_event );
1470 }
1471 }
1472 }
1473
1474 wxEventType event_type = wxEVT_NULL;
1475
1476 // GdkDisplay is a GTK+ 2.2.0 thing
1477 #if defined(__WXGTK20__) && GTK_CHECK_VERSION(2, 2, 0)
1478 if ( gdk_event->type == GDK_2BUTTON_PRESS &&
1479 !gtk_check_version(2,2,0) &&
1480 gdk_event->button >= 1 && gdk_event->button <= 3 )
1481 {
1482 // Reset GDK internal timestamp variables in order to disable GDK
1483 // triple click events. GDK will then next time believe no button has
1484 // been clicked just before, and send a normal button click event.
1485 GdkDisplay* display = gtk_widget_get_display (widget);
1486 display->button_click_time[1] = 0;
1487 display->button_click_time[0] = 0;
1488 }
1489 #endif // GTK 2+
1490
1491 if (gdk_event->button == 1)
1492 {
1493 // note that GDK generates triple click events which are not supported
1494 // by wxWidgets but still have to be passed to the app as otherwise
1495 // clicks would simply go missing
1496 switch (gdk_event->type)
1497 {
1498 // we shouldn't get triple clicks at all for GTK2 because we
1499 // suppress them artificially using the code above but we still
1500 // should map them to something for GTK1 and not just ignore them
1501 // as this would lose clicks
1502 case GDK_3BUTTON_PRESS: // we could also map this to DCLICK...
1503 case GDK_BUTTON_PRESS:
1504 event_type = wxEVT_LEFT_DOWN;
1505 break;
1506
1507 case GDK_2BUTTON_PRESS:
1508 event_type = wxEVT_LEFT_DCLICK;
1509 break;
1510
1511 default:
1512 // just to silence gcc warnings
1513 ;
1514 }
1515 }
1516 else if (gdk_event->button == 2)
1517 {
1518 switch (gdk_event->type)
1519 {
1520 case GDK_3BUTTON_PRESS:
1521 case GDK_BUTTON_PRESS:
1522 event_type = wxEVT_MIDDLE_DOWN;
1523 break;
1524
1525 case GDK_2BUTTON_PRESS:
1526 event_type = wxEVT_MIDDLE_DCLICK;
1527 break;
1528
1529 default:
1530 ;
1531 }
1532 }
1533 else if (gdk_event->button == 3)
1534 {
1535 switch (gdk_event->type)
1536 {
1537 case GDK_3BUTTON_PRESS:
1538 case GDK_BUTTON_PRESS:
1539 event_type = wxEVT_RIGHT_DOWN;
1540 break;
1541
1542 case GDK_2BUTTON_PRESS:
1543 event_type = wxEVT_RIGHT_DCLICK;
1544 break;
1545
1546 default:
1547 ;
1548 }
1549 }
1550 else if (gdk_event->button == 4 || gdk_event->button == 5)
1551 {
1552 if (gdk_event->type == GDK_BUTTON_PRESS )
1553 {
1554 event_type = wxEVT_MOUSEWHEEL;
1555 }
1556 }
1557
1558 if ( event_type == wxEVT_NULL )
1559 {
1560 // unknown mouse button or click type
1561 return FALSE;
1562 }
1563
1564 g_lastMouseEvent = (GdkEvent*) gdk_event;
1565
1566 wxMouseEvent event( event_type );
1567 InitMouseEvent( win, event, gdk_event );
1568
1569 AdjustEventButtonState(event);
1570
1571 // wxListBox actually gets mouse events from the item, so we need to give it
1572 // a chance to correct this
1573 win->FixUpMouseEvent(widget, event.m_x, event.m_y);
1574
1575 // find the correct window to send the event to: it may be a different one
1576 // from the one which got it at GTK+ level because some controls don't have
1577 // their own X window and thus cannot get any events.
1578 if ( !g_captureWindow )
1579 win = FindWindowForMouseEvent(win, event.m_x, event.m_y);
1580
1581 // reset the event object and id in case win changed.
1582 event.SetEventObject( win );
1583 event.SetId( win->GetId() );
1584
1585 bool ret = win->GTKProcessEvent( event );
1586 g_lastMouseEvent = NULL;
1587 if ( ret )
1588 return TRUE;
1589
1590 if (event_type == wxEVT_RIGHT_DOWN)
1591 {
1592 // generate a "context menu" event: this is similar to right mouse
1593 // click under many GUIs except that it is generated differently
1594 // (right up under MSW, ctrl-click under Mac, right down here) and
1595 //
1596 // (a) it's a command event and so is propagated to the parent
1597 // (b) under some ports it can be generated from kbd too
1598 // (c) it uses screen coords (because of (a))
1599 wxContextMenuEvent evtCtx(
1600 wxEVT_CONTEXT_MENU,
1601 win->GetId(),
1602 win->ClientToScreen(event.GetPosition()));
1603 evtCtx.SetEventObject(win);
1604 return win->GTKProcessEvent(evtCtx);
1605 }
1606
1607 return FALSE;
1608 }
1609
1610 //-----------------------------------------------------------------------------
1611 // "button_release_event"
1612 //-----------------------------------------------------------------------------
1613
1614 static gboolean
1615 gtk_window_button_release_callback( GtkWidget *widget,
1616 GdkEventButton *gdk_event,
1617 wxWindowGTK *win )
1618 {
1619 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1620
1621 g_lastButtonNumber = 0;
1622
1623 wxEventType event_type = wxEVT_NULL;
1624
1625 switch (gdk_event->button)
1626 {
1627 case 1:
1628 event_type = wxEVT_LEFT_UP;
1629 break;
1630
1631 case 2:
1632 event_type = wxEVT_MIDDLE_UP;
1633 break;
1634
1635 case 3:
1636 event_type = wxEVT_RIGHT_UP;
1637 break;
1638
1639 default:
1640 // unknown button, don't process
1641 return FALSE;
1642 }
1643
1644 g_lastMouseEvent = (GdkEvent*) gdk_event;
1645
1646 wxMouseEvent event( event_type );
1647 InitMouseEvent( win, event, gdk_event );
1648
1649 AdjustEventButtonState(event);
1650
1651 // same wxListBox hack as above
1652 win->FixUpMouseEvent(widget, event.m_x, event.m_y);
1653
1654 if ( !g_captureWindow )
1655 win = FindWindowForMouseEvent(win, event.m_x, event.m_y);
1656
1657 // reset the event object and id in case win changed.
1658 event.SetEventObject( win );
1659 event.SetId( win->GetId() );
1660
1661 bool ret = win->GTKProcessEvent(event);
1662
1663 g_lastMouseEvent = NULL;
1664
1665 return ret;
1666 }
1667
1668 //-----------------------------------------------------------------------------
1669 // "motion_notify_event"
1670 //-----------------------------------------------------------------------------
1671
1672 static gboolean
1673 gtk_window_motion_notify_callback( GtkWidget *widget,
1674 GdkEventMotion *gdk_event,
1675 wxWindowGTK *win )
1676 {
1677 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1678
1679 if (gdk_event->is_hint)
1680 {
1681 int x = 0;
1682 int y = 0;
1683 GdkModifierType state;
1684 gdk_window_get_pointer(gdk_event->window, &x, &y, &state);
1685 gdk_event->x = x;
1686 gdk_event->y = y;
1687 }
1688
1689 g_lastMouseEvent = (GdkEvent*) gdk_event;
1690
1691 wxMouseEvent event( wxEVT_MOTION );
1692 InitMouseEvent(win, event, gdk_event);
1693
1694 if ( g_captureWindow )
1695 {
1696 // synthesise a mouse enter or leave event if needed
1697 GdkWindow *winUnderMouse = gdk_window_at_pointer(NULL, NULL);
1698 // This seems to be necessary and actually been added to
1699 // GDK itself in version 2.0.X
1700 gdk_flush();
1701
1702 bool hasMouse = winUnderMouse == gdk_event->window;
1703 if ( hasMouse != g_captureWindowHasMouse )
1704 {
1705 // the mouse changed window
1706 g_captureWindowHasMouse = hasMouse;
1707
1708 wxMouseEvent eventM(g_captureWindowHasMouse ? wxEVT_ENTER_WINDOW
1709 : wxEVT_LEAVE_WINDOW);
1710 InitMouseEvent(win, eventM, gdk_event);
1711 eventM.SetEventObject(win);
1712 win->GTKProcessEvent(eventM);
1713 }
1714 }
1715 else // no capture
1716 {
1717 win = FindWindowForMouseEvent(win, event.m_x, event.m_y);
1718
1719 // reset the event object and id in case win changed.
1720 event.SetEventObject( win );
1721 event.SetId( win->GetId() );
1722 }
1723
1724 if ( !g_captureWindow )
1725 {
1726 wxSetCursorEvent cevent( event.m_x, event.m_y );
1727 if (win->GTKProcessEvent( cevent ))
1728 {
1729 win->SetCursor( cevent.GetCursor() );
1730 }
1731 }
1732
1733 bool ret = win->GTKProcessEvent(event);
1734
1735 g_lastMouseEvent = NULL;
1736
1737 return ret;
1738 }
1739
1740 //-----------------------------------------------------------------------------
1741 // "scroll_event", (mouse wheel event)
1742 //-----------------------------------------------------------------------------
1743
1744 static gboolean
1745 window_scroll_event(GtkWidget*, GdkEventScroll* gdk_event, wxWindow* win)
1746 {
1747 DEBUG_MAIN_THREAD
1748
1749 // don't need to install idle handler, its done from "event" signal
1750
1751 if (gdk_event->direction != GDK_SCROLL_UP &&
1752 gdk_event->direction != GDK_SCROLL_DOWN)
1753 {
1754 return false;
1755 }
1756
1757 wxMouseEvent event(wxEVT_MOUSEWHEEL);
1758 // Can't use InitMouse macro because scroll events don't have button
1759 event.SetTimestamp( gdk_event->time );
1760 event.m_shiftDown = (gdk_event->state & GDK_SHIFT_MASK);
1761 event.m_controlDown = (gdk_event->state & GDK_CONTROL_MASK);
1762 event.m_altDown = (gdk_event->state & GDK_MOD1_MASK);
1763 event.m_metaDown = (gdk_event->state & GDK_MOD2_MASK);
1764 event.m_leftDown = (gdk_event->state & GDK_BUTTON1_MASK);
1765 event.m_middleDown = (gdk_event->state & GDK_BUTTON2_MASK);
1766 event.m_rightDown = (gdk_event->state & GDK_BUTTON3_MASK);
1767 event.m_linesPerAction = 3;
1768 event.m_wheelDelta = 120;
1769 if (gdk_event->direction == GDK_SCROLL_UP)
1770 event.m_wheelRotation = 120;
1771 else
1772 event.m_wheelRotation = -120;
1773
1774 wxPoint pt = win->GetClientAreaOrigin();
1775 event.m_x = (wxCoord)gdk_event->x - pt.x;
1776 event.m_y = (wxCoord)gdk_event->y - pt.y;
1777
1778 event.SetEventObject( win );
1779 event.SetId( win->GetId() );
1780 event.SetTimestamp( gdk_event->time );
1781
1782 return win->GTKProcessEvent(event);
1783 }
1784
1785 //-----------------------------------------------------------------------------
1786 // "popup-menu"
1787 //-----------------------------------------------------------------------------
1788
1789 static gboolean wxgtk_window_popup_menu_callback(GtkWidget*, wxWindowGTK* win)
1790 {
1791 wxContextMenuEvent event(wxEVT_CONTEXT_MENU, win->GetId(), wxPoint(-1, -1));
1792 event.SetEventObject(win);
1793 return win->GTKProcessEvent(event);
1794 }
1795
1796 //-----------------------------------------------------------------------------
1797 // "focus_in_event"
1798 //-----------------------------------------------------------------------------
1799
1800 static gboolean
1801 gtk_window_focus_in_callback( GtkWidget *widget,
1802 GdkEventFocus *WXUNUSED(event),
1803 wxWindow *win )
1804 {
1805 DEBUG_MAIN_THREAD
1806
1807 // don't need to install idle handler, its done from "event" signal
1808
1809 if (win->m_imData)
1810 gtk_im_context_focus_in(win->m_imData->context);
1811
1812 g_focusWindowLast =
1813 g_focusWindow = win;
1814
1815 wxLogTrace(TRACE_FOCUS,
1816 _T("%s: focus in"), win->GetName().c_str());
1817
1818 #if wxUSE_CARET
1819 // caret needs to be informed about focus change
1820 wxCaret *caret = win->GetCaret();
1821 if ( caret )
1822 {
1823 caret->OnSetFocus();
1824 }
1825 #endif // wxUSE_CARET
1826
1827 gboolean ret = FALSE;
1828
1829 // does the window itself think that it has the focus?
1830 if ( !win->m_hasFocus )
1831 {
1832 // not yet, notify it
1833 win->m_hasFocus = true;
1834
1835 (void)DoSendFocusEvents(win);
1836
1837 ret = TRUE;
1838 }
1839
1840 // Disable default focus handling for custom windows
1841 // since the default GTK+ handler issues a repaint
1842 if (win->m_wxwindow)
1843 return ret;
1844
1845 return FALSE;
1846 }
1847
1848 //-----------------------------------------------------------------------------
1849 // "focus_out_event"
1850 //-----------------------------------------------------------------------------
1851
1852 static gboolean
1853 gtk_window_focus_out_callback( GtkWidget *widget,
1854 GdkEventFocus *gdk_event,
1855 wxWindowGTK *win )
1856 {
1857 DEBUG_MAIN_THREAD
1858
1859 // don't need to install idle handler, its done from "event" signal
1860
1861 if (win->m_imData)
1862 gtk_im_context_focus_out(win->m_imData->context);
1863
1864 wxLogTrace( TRACE_FOCUS,
1865 _T("%s: focus out"), win->GetName().c_str() );
1866
1867
1868 wxWindowGTK *winFocus = wxFindFocusedChild(win);
1869 if ( winFocus )
1870 win = winFocus;
1871
1872 g_focusWindow = (wxWindowGTK *)NULL;
1873
1874 #if wxUSE_CARET
1875 // caret needs to be informed about focus change
1876 wxCaret *caret = win->GetCaret();
1877 if ( caret )
1878 {
1879 caret->OnKillFocus();
1880 }
1881 #endif // wxUSE_CARET
1882
1883 gboolean ret = FALSE;
1884
1885 // don't send the window a kill focus event if it thinks that it doesn't
1886 // have focus already
1887 if ( win->m_hasFocus )
1888 {
1889 win->m_hasFocus = false;
1890
1891 wxFocusEvent event( wxEVT_KILL_FOCUS, win->GetId() );
1892 event.SetEventObject( win );
1893
1894 (void)win->GTKProcessEvent( event );
1895
1896 ret = TRUE;
1897 }
1898
1899 // Disable default focus handling for custom windows
1900 // since the default GTK+ handler issues a repaint
1901 if (win->m_wxwindow)
1902 return ret;
1903
1904 return FALSE;
1905 }
1906
1907 static gboolean
1908 wx_window_focus_callback(GtkWidget *widget,
1909 GtkDirectionType direction,
1910 wxWindowGTK *win)
1911 {
1912 // the default handler for focus signal in GtkPizza (or, rather, in
1913 // GtkScrolledWindow from which GtkPizza inherits this behaviour) sets
1914 // focus to the window itself even if it doesn't accept focus, i.e. has no
1915 // GTK_CAN_FOCUS in its style -- work around this by forcibly preventing
1916 // the signal from reaching gtk_scrolled_window_focus() if we don't have
1917 // any children which might accept focus (we know we don't accept the focus
1918 // ourselves as this signal is only connected in this case)
1919 if ( win->GetChildren().empty() )
1920 g_signal_stop_emission_by_name(widget, "focus");
1921
1922 // we didn't change the focus
1923 return FALSE;
1924 }
1925
1926 //-----------------------------------------------------------------------------
1927 // "enter_notify_event"
1928 //-----------------------------------------------------------------------------
1929
1930 static gboolean
1931 gtk_window_enter_callback( GtkWidget *widget,
1932 GdkEventCrossing *gdk_event,
1933 wxWindowGTK *win )
1934 {
1935 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1936
1937 // Event was emitted after a grab
1938 if (gdk_event->mode != GDK_CROSSING_NORMAL) return FALSE;
1939
1940 int x = 0;
1941 int y = 0;
1942 GdkModifierType state = (GdkModifierType)0;
1943
1944 gdk_window_get_pointer( widget->window, &x, &y, &state );
1945
1946 wxMouseEvent event( wxEVT_ENTER_WINDOW );
1947 InitMouseEvent(win, event, gdk_event);
1948 wxPoint pt = win->GetClientAreaOrigin();
1949 event.m_x = x + pt.x;
1950 event.m_y = y + pt.y;
1951
1952 if ( !g_captureWindow )
1953 {
1954 wxSetCursorEvent cevent( event.m_x, event.m_y );
1955 if (win->GTKProcessEvent( cevent ))
1956 {
1957 win->SetCursor( cevent.GetCursor() );
1958 }
1959 }
1960
1961 return win->GTKProcessEvent(event);
1962 }
1963
1964 //-----------------------------------------------------------------------------
1965 // "leave_notify_event"
1966 //-----------------------------------------------------------------------------
1967
1968 static gboolean
1969 gtk_window_leave_callback( GtkWidget *widget,
1970 GdkEventCrossing *gdk_event,
1971 wxWindowGTK *win )
1972 {
1973 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1974
1975 // Event was emitted after an ungrab
1976 if (gdk_event->mode != GDK_CROSSING_NORMAL) return FALSE;
1977
1978 wxMouseEvent event( wxEVT_LEAVE_WINDOW );
1979 event.SetTimestamp( gdk_event->time );
1980 event.SetEventObject( win );
1981
1982 int x = 0;
1983 int y = 0;
1984 GdkModifierType state = (GdkModifierType)0;
1985
1986 gdk_window_get_pointer( widget->window, &x, &y, &state );
1987
1988 event.m_shiftDown = (state & GDK_SHIFT_MASK) != 0;
1989 event.m_controlDown = (state & GDK_CONTROL_MASK) != 0;
1990 event.m_altDown = (state & GDK_MOD1_MASK) != 0;
1991 event.m_metaDown = (state & GDK_MOD2_MASK) != 0;
1992 event.m_leftDown = (state & GDK_BUTTON1_MASK) != 0;
1993 event.m_middleDown = (state & GDK_BUTTON2_MASK) != 0;
1994 event.m_rightDown = (state & GDK_BUTTON3_MASK) != 0;
1995
1996 wxPoint pt = win->GetClientAreaOrigin();
1997 event.m_x = x + pt.x;
1998 event.m_y = y + pt.y;
1999
2000 return win->GTKProcessEvent(event);
2001 }
2002
2003 //-----------------------------------------------------------------------------
2004 // "value_changed" from scrollbar
2005 //-----------------------------------------------------------------------------
2006
2007 static void
2008 gtk_scrollbar_value_changed(GtkRange* range, wxWindow* win)
2009 {
2010 wxEventType eventType = win->GetScrollEventType(range);
2011 if (eventType != wxEVT_NULL)
2012 {
2013 // Convert scroll event type to scrollwin event type
2014 eventType += wxEVT_SCROLLWIN_TOP - wxEVT_SCROLL_TOP;
2015
2016 // find the scrollbar which generated the event
2017 wxWindowGTK::ScrollDir dir = win->ScrollDirFromRange(range);
2018
2019 // generate the corresponding wx event
2020 const int orient = wxWindow::OrientFromScrollDir(dir);
2021 wxScrollWinEvent event(eventType, win->GetScrollPos(orient), orient);
2022 event.SetEventObject(win);
2023
2024 win->m_blockValueChanged[dir] = true;
2025 win->GTKProcessEvent(event);
2026 win->m_blockValueChanged[dir] = false;
2027 }
2028 }
2029
2030 //-----------------------------------------------------------------------------
2031 // "button_press_event" from scrollbar
2032 //-----------------------------------------------------------------------------
2033
2034 static gboolean
2035 gtk_scrollbar_button_press_event(GtkRange*, GdkEventButton*, wxWindow* win)
2036 {
2037 DEBUG_MAIN_THREAD
2038
2039 // don't need to install idle handler, its done from "event" signal
2040
2041 g_blockEventsOnScroll = true;
2042 win->m_mouseButtonDown = true;
2043
2044 return false;
2045 }
2046
2047 //-----------------------------------------------------------------------------
2048 // "event_after" from scrollbar
2049 //-----------------------------------------------------------------------------
2050
2051 static void
2052 gtk_scrollbar_event_after(GtkRange* range, GdkEvent* event, wxWindow* win)
2053 {
2054 if (event->type == GDK_BUTTON_RELEASE)
2055 {
2056 g_signal_handlers_block_by_func(range, (void*)gtk_scrollbar_event_after, win);
2057
2058 const int orient = wxWindow::OrientFromScrollDir(
2059 win->ScrollDirFromRange(range));
2060 wxScrollWinEvent event(wxEVT_SCROLLWIN_THUMBRELEASE, win->GetScrollPos(orient), orient);
2061 event.SetEventObject(win);
2062 win->GTKProcessEvent(event);
2063 }
2064 }
2065
2066 //-----------------------------------------------------------------------------
2067 // "button_release_event" from scrollbar
2068 //-----------------------------------------------------------------------------
2069
2070 static gboolean
2071 gtk_scrollbar_button_release_event(GtkRange* range, GdkEventButton*, wxWindow* win)
2072 {
2073 DEBUG_MAIN_THREAD
2074
2075 g_blockEventsOnScroll = false;
2076 win->m_mouseButtonDown = false;
2077 // If thumb tracking
2078 if (win->m_isScrolling)
2079 {
2080 win->m_isScrolling = false;
2081 // Hook up handler to send thumb release event after this emission is finished.
2082 // To allow setting scroll position from event handler, sending event must
2083 // be deferred until after the GtkRange handler for this signal has run
2084 g_signal_handlers_unblock_by_func(range, (void*)gtk_scrollbar_event_after, win);
2085 }
2086
2087 return false;
2088 }
2089
2090 //-----------------------------------------------------------------------------
2091 // "realize" from m_widget
2092 //-----------------------------------------------------------------------------
2093
2094 /* We cannot set colours and fonts before the widget has
2095 been realized, so we do this directly after realization. */
2096
2097 static void
2098 gtk_window_realized_callback( GtkWidget *m_widget, wxWindow *win )
2099 {
2100 DEBUG_MAIN_THREAD
2101
2102 if (g_isIdle)
2103 wxapp_install_idle_handler();
2104
2105 if (win->m_imData)
2106 {
2107 GtkPizza *pizza = GTK_PIZZA( m_widget );
2108 gtk_im_context_set_client_window( win->m_imData->context,
2109 pizza->bin_window );
2110 }
2111
2112 wxWindowCreateEvent event( win );
2113 event.SetEventObject( win );
2114 win->GTKProcessEvent( event );
2115 }
2116
2117 //-----------------------------------------------------------------------------
2118 // "size_allocate"
2119 //-----------------------------------------------------------------------------
2120
2121 static
2122 void gtk_window_size_callback( GtkWidget *WXUNUSED(widget),
2123 GtkAllocation *alloc,
2124 wxWindow *win )
2125 {
2126 if (g_isIdle)
2127 wxapp_install_idle_handler();
2128
2129 int client_width = 0;
2130 int client_height = 0;
2131 win->GetClientSize( &client_width, &client_height );
2132 if ((client_width == win->m_oldClientWidth) && (client_height == win->m_oldClientHeight))
2133 return;
2134
2135 if ( !client_width && !client_height )
2136 {
2137 // the window is currently unmapped, don't generate size events
2138 return;
2139 }
2140
2141 win->m_oldClientWidth = client_width;
2142 win->m_oldClientHeight = client_height;
2143
2144 if (!win->m_nativeSizeEvent)
2145 {
2146 wxSizeEvent event( win->GetSize(), win->GetId() );
2147 event.SetEventObject( win );
2148 win->GTKProcessEvent( event );
2149 }
2150 }
2151
2152 } // extern "C"
2153
2154 // ----------------------------------------------------------------------------
2155 // this wxWindowBase function is implemented here (in platform-specific file)
2156 // because it is static and so couldn't be made virtual
2157 // ----------------------------------------------------------------------------
2158
2159 wxWindow *wxWindowBase::DoFindFocus()
2160 {
2161 // the cast is necessary when we compile in wxUniversal mode
2162 return (wxWindow *)g_focusWindow;
2163 }
2164
2165 //-----------------------------------------------------------------------------
2166 // InsertChild for wxWindowGTK.
2167 //-----------------------------------------------------------------------------
2168
2169 /* Callback for wxWindowGTK. This very strange beast has to be used because
2170 * C++ has no virtual methods in a constructor. We have to emulate a
2171 * virtual function here as wxNotebook requires a different way to insert
2172 * a child in it. I had opted for creating a wxNotebookPage window class
2173 * which would have made this superfluous (such in the MDI window system),
2174 * but no-one was listening to me... */
2175
2176 static void wxInsertChildInWindow( wxWindowGTK* parent, wxWindowGTK* child )
2177 {
2178 /* the window might have been scrolled already, do we
2179 have to adapt the position */
2180 GtkPizza *pizza = GTK_PIZZA(parent->m_wxwindow);
2181 child->m_x += gtk_pizza_get_xoffset( pizza );
2182 child->m_y += gtk_pizza_get_yoffset( pizza );
2183
2184 gtk_pizza_put( GTK_PIZZA(parent->m_wxwindow),
2185 GTK_WIDGET(child->m_widget),
2186 child->m_x,
2187 child->m_y,
2188 child->m_width,
2189 child->m_height );
2190 }
2191
2192 //-----------------------------------------------------------------------------
2193 // global functions
2194 //-----------------------------------------------------------------------------
2195
2196 wxWindow *wxGetActiveWindow()
2197 {
2198 return wxWindow::FindFocus();
2199 }
2200
2201
2202 wxMouseState wxGetMouseState()
2203 {
2204 wxMouseState ms;
2205
2206 gint x;
2207 gint y;
2208 GdkModifierType mask;
2209
2210 gdk_window_get_pointer(NULL, &x, &y, &mask);
2211
2212 ms.SetX(x);
2213 ms.SetY(y);
2214 ms.SetLeftDown(mask & GDK_BUTTON1_MASK);
2215 ms.SetMiddleDown(mask & GDK_BUTTON2_MASK);
2216 ms.SetRightDown(mask & GDK_BUTTON3_MASK);
2217
2218 ms.SetControlDown(mask & GDK_CONTROL_MASK);
2219 ms.SetShiftDown(mask & GDK_SHIFT_MASK);
2220 ms.SetAltDown(mask & GDK_MOD1_MASK);
2221 ms.SetMetaDown(mask & GDK_MOD2_MASK);
2222
2223 return ms;
2224 }
2225
2226 //-----------------------------------------------------------------------------
2227 // wxWindowGTK
2228 //-----------------------------------------------------------------------------
2229
2230 // in wxUniv/MSW this class is abstract because it doesn't have DoPopupMenu()
2231 // method
2232 #ifdef __WXUNIVERSAL__
2233 IMPLEMENT_ABSTRACT_CLASS(wxWindowGTK, wxWindowBase)
2234 #else // __WXGTK__
2235 IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxWindowBase)
2236 #endif // __WXUNIVERSAL__/__WXGTK__
2237
2238 void wxWindowGTK::Init()
2239 {
2240 // GTK specific
2241 m_widget = (GtkWidget *) NULL;
2242 m_wxwindow = (GtkWidget *) NULL;
2243 m_focusWidget = (GtkWidget *) NULL;
2244
2245 // position/size
2246 m_x = 0;
2247 m_y = 0;
2248 m_width = 0;
2249 m_height = 0;
2250
2251 m_sizeSet = false;
2252 m_hasVMT = false;
2253 m_needParent = true;
2254 m_isBeingDeleted = false;
2255
2256 m_showOnIdle= false;
2257
2258 m_noExpose = false;
2259 m_nativeSizeEvent = false;
2260
2261 m_hasScrolling = false;
2262 m_isScrolling = false;
2263 m_mouseButtonDown = false;
2264 m_blockScrollEvent = false;
2265
2266 // initialize scrolling stuff
2267 for ( int dir = 0; dir < ScrollDir_Max; dir++ )
2268 {
2269 m_scrollBar[dir] = NULL;
2270 m_scrollPos[dir] = 0;
2271 m_blockValueChanged[dir] = false;
2272 }
2273
2274 m_oldClientWidth =
2275 m_oldClientHeight = 0;
2276
2277 m_resizing = false;
2278
2279 m_insertCallback = (wxInsertChildFunction) NULL;
2280
2281 m_hasFocus = false;
2282
2283 m_clipPaintRegion = false;
2284
2285 m_needsStyleChange = false;
2286
2287 m_cursor = *wxSTANDARD_CURSOR;
2288
2289 m_imData = NULL;
2290 m_dirtyTabOrder = false;
2291 }
2292
2293 wxWindowGTK::wxWindowGTK()
2294 {
2295 Init();
2296 }
2297
2298 wxWindowGTK::wxWindowGTK( wxWindow *parent,
2299 wxWindowID id,
2300 const wxPoint &pos,
2301 const wxSize &size,
2302 long style,
2303 const wxString &name )
2304 {
2305 Init();
2306
2307 Create( parent, id, pos, size, style, name );
2308 }
2309
2310 bool wxWindowGTK::Create( wxWindow *parent,
2311 wxWindowID id,
2312 const wxPoint &pos,
2313 const wxSize &size,
2314 long style,
2315 const wxString &name )
2316 {
2317 if (!PreCreation( parent, pos, size ) ||
2318 !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
2319 {
2320 wxFAIL_MSG( wxT("wxWindowGTK creation failed") );
2321 return false;
2322 }
2323
2324 m_insertCallback = wxInsertChildInWindow;
2325
2326 m_widget = gtk_scrolled_window_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL );
2327
2328 GtkScrolledWindow *scrolledWindow = GTK_SCROLLED_WINDOW(m_widget);
2329
2330 GtkScrolledWindowClass *scroll_class = GTK_SCROLLED_WINDOW_CLASS( GTK_OBJECT_GET_CLASS(m_widget) );
2331 scroll_class->scrollbar_spacing = 0;
2332
2333 // we create a GtkScrolledWindow for all windows, even those which don't
2334 // use scrollbars, but there is a conflict with default bindings at GTK+
2335 // level between scrolled windows and notebooks both of which want to use
2336 // Ctrl-PageUp/Down: scrolled windows for scrolling in the horizontal
2337 // direction and notebooks for changing pages -- we decide that if we don't
2338 // have wxHSCROLL style we can safely sacrifice horizontal scrolling if it
2339 // means we can get working keyboard navigation in notebooks
2340 if ( !HasFlag(wxHSCROLL) )
2341 {
2342 GtkBindingSet *
2343 bindings = gtk_binding_set_by_class(G_OBJECT_GET_CLASS(m_widget));
2344 if ( bindings )
2345 {
2346 gtk_binding_entry_remove(bindings, GDK_Page_Up, GDK_CONTROL_MASK);
2347 gtk_binding_entry_remove(bindings, GDK_Page_Down, GDK_CONTROL_MASK);
2348 }
2349 }
2350
2351 if (HasFlag(wxALWAYS_SHOW_SB))
2352 {
2353 gtk_scrolled_window_set_policy( scrolledWindow, GTK_POLICY_ALWAYS, GTK_POLICY_ALWAYS );
2354
2355 scrolledWindow->hscrollbar_visible = TRUE;
2356 scrolledWindow->vscrollbar_visible = TRUE;
2357 }
2358 else
2359 {
2360 gtk_scrolled_window_set_policy( scrolledWindow, GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
2361 }
2362
2363 m_scrollBar[ScrollDir_Horz] = GTK_RANGE(scrolledWindow->hscrollbar);
2364 m_scrollBar[ScrollDir_Vert] = GTK_RANGE(scrolledWindow->vscrollbar);
2365 if (GetLayoutDirection() == wxLayout_RightToLeft)
2366 gtk_range_set_inverted( m_scrollBar[ScrollDir_Horz], TRUE );
2367
2368 m_wxwindow = gtk_pizza_new();
2369
2370 #ifndef __WXUNIVERSAL__
2371 if (HasFlag(wxSIMPLE_BORDER))
2372 gtk_container_set_border_width((GtkContainer*)m_wxwindow, 1);
2373 else if (HasFlag(wxRAISED_BORDER) || HasFlag(wxSUNKEN_BORDER))
2374 gtk_container_set_border_width((GtkContainer*)m_wxwindow, 2);
2375 #endif // __WXUNIVERSAL__
2376
2377 gtk_container_add( GTK_CONTAINER(m_widget), m_wxwindow );
2378
2379 // connect various scroll-related events
2380 for ( int dir = 0; dir < ScrollDir_Max; dir++ )
2381 {
2382 // these handlers block mouse events to any window during scrolling
2383 // such as motion events and prevent GTK and wxWidgets from fighting
2384 // over where the slider should be
2385 g_signal_connect(m_scrollBar[dir], "button_press_event",
2386 G_CALLBACK(gtk_scrollbar_button_press_event), this);
2387 g_signal_connect(m_scrollBar[dir], "button_release_event",
2388 G_CALLBACK(gtk_scrollbar_button_release_event), this);
2389
2390 gulong handler_id = g_signal_connect(m_scrollBar[dir], "event_after",
2391 G_CALLBACK(gtk_scrollbar_event_after), this);
2392 g_signal_handler_block(m_scrollBar[dir], handler_id);
2393
2394 // these handlers get notified when scrollbar slider moves
2395 g_signal_connect(m_scrollBar[dir], "value_changed",
2396 G_CALLBACK(gtk_scrollbar_value_changed), this);
2397 }
2398
2399 gtk_widget_show( m_wxwindow );
2400
2401 if (m_parent)
2402 m_parent->DoAddChild( this );
2403
2404 m_focusWidget = m_wxwindow;
2405
2406 PostCreation();
2407
2408 return true;
2409 }
2410
2411 wxWindowGTK::~wxWindowGTK()
2412 {
2413 SendDestroyEvent();
2414
2415 if (g_focusWindow == this)
2416 g_focusWindow = NULL;
2417
2418 if ( g_delayedFocus == this )
2419 g_delayedFocus = NULL;
2420
2421 m_isBeingDeleted = true;
2422 m_hasVMT = false;
2423
2424 // destroy children before destroying this window itself
2425 DestroyChildren();
2426
2427 // unhook focus handlers to prevent stray events being
2428 // propagated to this (soon to be) dead object
2429 if (m_focusWidget != NULL)
2430 {
2431 g_signal_handlers_disconnect_by_func (m_focusWidget,
2432 (gpointer) gtk_window_focus_in_callback,
2433 this);
2434 g_signal_handlers_disconnect_by_func (m_focusWidget,
2435 (gpointer) gtk_window_focus_out_callback,
2436 this);
2437 }
2438
2439 if (m_widget)
2440 Show( false );
2441
2442 // delete before the widgets to avoid a crash on solaris
2443 delete m_imData;
2444
2445 if (m_wxwindow)
2446 {
2447 gtk_widget_destroy( m_wxwindow );
2448 m_wxwindow = (GtkWidget*) NULL;
2449 }
2450
2451 if (m_widget)
2452 {
2453 gtk_widget_destroy( m_widget );
2454 m_widget = (GtkWidget*) NULL;
2455 }
2456 }
2457
2458 bool wxWindowGTK::PreCreation( wxWindowGTK *parent, const wxPoint &pos, const wxSize &size )
2459 {
2460 wxCHECK_MSG( !m_needParent || parent, false, wxT("Need complete parent.") );
2461
2462 // Use either the given size, or the default if -1 is given.
2463 // See wxWindowBase for these functions.
2464 m_width = WidthDefault(size.x) ;
2465 m_height = HeightDefault(size.y);
2466
2467 m_x = (int)pos.x;
2468 m_y = (int)pos.y;
2469
2470 return true;
2471 }
2472
2473 void wxWindowGTK::PostCreation()
2474 {
2475 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
2476
2477 if (m_wxwindow)
2478 {
2479 if (!m_noExpose)
2480 {
2481 // these get reported to wxWidgets -> wxPaintEvent
2482
2483 g_signal_connect (m_wxwindow, "expose_event",
2484 G_CALLBACK (gtk_window_expose_callback), this);
2485
2486 if (GetLayoutDirection() == wxLayout_LeftToRight)
2487 gtk_widget_set_redraw_on_allocate( GTK_WIDGET(m_wxwindow), HasFlag( wxFULL_REPAINT_ON_RESIZE ) );
2488 }
2489
2490 // Create input method handler
2491 m_imData = new wxGtkIMData;
2492
2493 // Cannot handle drawing preedited text yet
2494 gtk_im_context_set_use_preedit( m_imData->context, FALSE );
2495
2496 g_signal_connect (m_imData->context, "commit",
2497 G_CALLBACK (gtk_wxwindow_commit_cb), this);
2498
2499 // these are called when the "sunken" or "raised" borders are drawn
2500 g_signal_connect (m_widget, "expose_event",
2501 G_CALLBACK (gtk_window_own_expose_callback), this);
2502 }
2503
2504 // focus handling
2505
2506 if (!GTK_IS_WINDOW(m_widget))
2507 {
2508 if (m_focusWidget == NULL)
2509 m_focusWidget = m_widget;
2510
2511 if (m_wxwindow)
2512 {
2513 g_signal_connect (m_focusWidget, "focus_in_event",
2514 G_CALLBACK (gtk_window_focus_in_callback), this);
2515 g_signal_connect (m_focusWidget, "focus_out_event",
2516 G_CALLBACK (gtk_window_focus_out_callback), this);
2517 }
2518 else
2519 {
2520 g_signal_connect_after (m_focusWidget, "focus_in_event",
2521 G_CALLBACK (gtk_window_focus_in_callback), this);
2522 g_signal_connect_after (m_focusWidget, "focus_out_event",
2523 G_CALLBACK (gtk_window_focus_out_callback), this);
2524 }
2525 }
2526
2527 if ( !AcceptsFocusFromKeyboard() )
2528 {
2529 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
2530 if ( m_wxwindow )
2531 GTK_WIDGET_UNSET_FLAGS( m_wxwindow, GTK_CAN_FOCUS );
2532
2533 g_signal_connect(m_widget, "focus",
2534 G_CALLBACK(wx_window_focus_callback), this);
2535 }
2536
2537 // connect to the various key and mouse handlers
2538
2539 GtkWidget *connect_widget = GetConnectWidget();
2540
2541 ConnectWidget( connect_widget );
2542
2543 /* We cannot set colours, fonts and cursors before the widget has
2544 been realized, so we do this directly after realization */
2545 g_signal_connect (connect_widget, "realize",
2546 G_CALLBACK (gtk_window_realized_callback), this);
2547
2548 if (m_wxwindow)
2549 {
2550 // Catch native resize events
2551 g_signal_connect (m_wxwindow, "size_allocate",
2552 G_CALLBACK (gtk_window_size_callback), this);
2553 }
2554
2555 if (GTK_IS_COMBO(m_widget))
2556 {
2557 GtkCombo *gcombo = GTK_COMBO(m_widget);
2558
2559 g_signal_connect (gcombo->entry, "size_request",
2560 G_CALLBACK (wxgtk_combo_size_request_callback),
2561 this);
2562 }
2563 #ifdef GTK_IS_FILE_CHOOSER_BUTTON
2564 else if (!gtk_check_version(2,6,0) && GTK_IS_FILE_CHOOSER_BUTTON(m_widget))
2565 {
2566 // If we connect to the "size_request" signal of a GtkFileChooserButton
2567 // then that control won't be sized properly when placed inside sizers
2568 // (this can be tested removing this elseif and running XRC or WIDGETS samples)
2569 // FIXME: what should be done here ?
2570 }
2571 #endif
2572 else if ( !IsTopLevel() ) // top level windows use their own callback
2573 {
2574 // This is needed if we want to add our windows into native
2575 // GTK controls, such as the toolbar. With this callback, the
2576 // toolbar gets to know the correct size (the one set by the
2577 // programmer). Sadly, it misbehaves for wxComboBox.
2578 g_signal_connect (m_widget, "size_request",
2579 G_CALLBACK (wxgtk_window_size_request_callback),
2580 this);
2581 }
2582
2583 InheritAttributes();
2584
2585 m_hasVMT = true;
2586
2587 SetLayoutDirection(wxLayout_Default);
2588
2589 // unless the window was created initially hidden (i.e. Hide() had been
2590 // called before Create()), we should show it at GTK+ level as well
2591 if ( IsShown() )
2592 gtk_widget_show( m_widget );
2593 }
2594
2595 void wxWindowGTK::ConnectWidget( GtkWidget *widget )
2596 {
2597 g_signal_connect (widget, "key_press_event",
2598 G_CALLBACK (gtk_window_key_press_callback), this);
2599 g_signal_connect (widget, "key_release_event",
2600 G_CALLBACK (gtk_window_key_release_callback), this);
2601 g_signal_connect (widget, "button_press_event",
2602 G_CALLBACK (gtk_window_button_press_callback), this);
2603 g_signal_connect (widget, "button_release_event",
2604 G_CALLBACK (gtk_window_button_release_callback), this);
2605 g_signal_connect (widget, "motion_notify_event",
2606 G_CALLBACK (gtk_window_motion_notify_callback), this);
2607 g_signal_connect (widget, "scroll_event",
2608 G_CALLBACK (window_scroll_event), this);
2609 g_signal_connect (widget, "popup_menu",
2610 G_CALLBACK (wxgtk_window_popup_menu_callback), this);
2611 g_signal_connect (widget, "enter_notify_event",
2612 G_CALLBACK (gtk_window_enter_callback), this);
2613 g_signal_connect (widget, "leave_notify_event",
2614 G_CALLBACK (gtk_window_leave_callback), this);
2615 }
2616
2617 bool wxWindowGTK::Destroy()
2618 {
2619 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
2620
2621 m_hasVMT = false;
2622
2623 return wxWindowBase::Destroy();
2624 }
2625
2626 void wxWindowGTK::DoMoveWindow(int x, int y, int width, int height)
2627 {
2628 // inform the parent to perform the move
2629 gtk_pizza_set_size( GTK_PIZZA(m_parent->m_wxwindow), m_widget, x, y, width, height );
2630
2631 }
2632
2633 void wxWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags )
2634 {
2635 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
2636 wxASSERT_MSG( (m_parent != NULL), wxT("wxWindowGTK::SetSize requires parent.\n") );
2637
2638 if (m_resizing) return; /* I don't like recursions */
2639 m_resizing = true;
2640
2641 int currentX, currentY;
2642 GetPosition(&currentX, &currentY);
2643 if (x == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2644 x = currentX;
2645 if (y == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2646 y = currentY;
2647 AdjustForParentClientOrigin(x, y, sizeFlags);
2648
2649 // calculate the best size if we should auto size the window
2650 if ( ((sizeFlags & wxSIZE_AUTO_WIDTH) && width == -1) ||
2651 ((sizeFlags & wxSIZE_AUTO_HEIGHT) && height == -1) )
2652 {
2653 const wxSize sizeBest = GetBestSize();
2654 if ( (sizeFlags & wxSIZE_AUTO_WIDTH) && width == -1 )
2655 width = sizeBest.x;
2656 if ( (sizeFlags & wxSIZE_AUTO_HEIGHT) && height == -1 )
2657 height = sizeBest.y;
2658 }
2659
2660 if (width != -1)
2661 m_width = width;
2662 if (height != -1)
2663 m_height = height;
2664
2665 int minWidth = GetMinWidth(),
2666 minHeight = GetMinHeight(),
2667 maxWidth = GetMaxWidth(),
2668 maxHeight = GetMaxHeight();
2669
2670 if ((minWidth != -1) && (m_width < minWidth )) m_width = minWidth;
2671 if ((minHeight != -1) && (m_height < minHeight)) m_height = minHeight;
2672 if ((maxWidth != -1) && (m_width > maxWidth )) m_width = maxWidth;
2673 if ((maxHeight != -1) && (m_height > maxHeight)) m_height = maxHeight;
2674
2675 #if wxUSE_TOOLBAR_NATIVE
2676 if (wxDynamicCast(GetParent(), wxToolBar))
2677 {
2678 // don't take the x,y values, they're wrong because toolbar sets them
2679 GtkWidget *widget = GTK_WIDGET(m_widget);
2680 gtk_widget_set_size_request (widget, m_width, m_height);
2681 }
2682 else
2683 #endif
2684 if (m_parent->m_wxwindow == NULL) // i.e. wxNotebook
2685 {
2686 // don't set the size for children of wxNotebook, just take the values.
2687 m_x = x;
2688 m_y = y;
2689 m_width = width;
2690 m_height = height;
2691 }
2692 else
2693 {
2694 GtkPizza *pizza = GTK_PIZZA(m_parent->m_wxwindow);
2695 if ((sizeFlags & wxSIZE_ALLOW_MINUS_ONE) == 0)
2696 {
2697 if (x != -1) m_x = x + gtk_pizza_get_xoffset( pizza );
2698 if (y != -1) m_y = y + gtk_pizza_get_yoffset( pizza );
2699 }
2700 else
2701 {
2702 m_x = x + gtk_pizza_get_xoffset( pizza );
2703 m_y = y + gtk_pizza_get_yoffset( pizza );
2704 }
2705
2706 int left_border = 0;
2707 int right_border = 0;
2708 int top_border = 0;
2709 int bottom_border = 0;
2710
2711 /* the default button has a border around it */
2712 if (GTK_WIDGET_CAN_DEFAULT(m_widget))
2713 {
2714 GtkBorder *default_border = NULL;
2715 gtk_widget_style_get( m_widget, "default_border", &default_border, NULL );
2716 if (default_border)
2717 {
2718 left_border += default_border->left;
2719 right_border += default_border->right;
2720 top_border += default_border->top;
2721 bottom_border += default_border->bottom;
2722 g_free( default_border );
2723 }
2724 }
2725
2726 DoMoveWindow( m_x-top_border,
2727 m_y-left_border,
2728 m_width+left_border+right_border,
2729 m_height+top_border+bottom_border );
2730 }
2731
2732 if (m_hasScrolling)
2733 {
2734 /* Sometimes the client area changes size without the
2735 whole windows's size changing, but if the whole
2736 windows's size doesn't change, no wxSizeEvent will
2737 normally be sent. Here we add an extra test if
2738 the client test has been changed and this will
2739 be used then. */
2740 GetClientSize( &m_oldClientWidth, &m_oldClientHeight );
2741 }
2742
2743 /*
2744 wxPrintf( "OnSize sent from " );
2745 if (GetClassInfo() && GetClassInfo()->GetClassName())
2746 wxPrintf( GetClassInfo()->GetClassName() );
2747 wxPrintf( " %d %d %d %d\n", (int)m_x, (int)m_y, (int)m_width, (int)m_height );
2748 */
2749
2750 if (!m_nativeSizeEvent)
2751 {
2752 wxSizeEvent event( wxSize(m_width,m_height), GetId() );
2753 event.SetEventObject( this );
2754 GetEventHandler()->ProcessEvent( event );
2755 }
2756
2757 m_resizing = false;
2758 }
2759
2760 bool wxWindowGTK::GtkShowFromOnIdle()
2761 {
2762 if (IsShown() && m_showOnIdle && !GTK_WIDGET_VISIBLE (m_widget))
2763 {
2764 GtkAllocation alloc;
2765 alloc.x = m_x;
2766 alloc.y = m_y;
2767 alloc.width = m_width;
2768 alloc.height = m_height;
2769 gtk_widget_size_allocate( m_widget, &alloc );
2770 gtk_widget_show( m_widget );
2771 wxShowEvent eventShow(GetId(), true);
2772 eventShow.SetEventObject(this);
2773 GetEventHandler()->ProcessEvent(eventShow);
2774 m_showOnIdle = false;
2775 return true;
2776 }
2777
2778 return false;
2779 }
2780
2781 void wxWindowGTK::OnInternalIdle()
2782 {
2783 // Check if we have to show window now
2784 if (GtkShowFromOnIdle()) return;
2785
2786 if ( m_dirtyTabOrder )
2787 {
2788 m_dirtyTabOrder = false;
2789 RealizeTabOrder();
2790 }
2791
2792 // Update style if the window was not yet realized
2793 // and SetBackgroundStyle(wxBG_STYLE_CUSTOM) was called
2794 if (m_needsStyleChange)
2795 {
2796 SetBackgroundStyle(GetBackgroundStyle());
2797 m_needsStyleChange = false;
2798 }
2799
2800 wxCursor cursor = m_cursor;
2801 if (g_globalCursor.Ok()) cursor = g_globalCursor;
2802
2803 if (cursor.Ok())
2804 {
2805 /* I now set the cursor anew in every OnInternalIdle call
2806 as setting the cursor in a parent window also effects the
2807 windows above so that checking for the current cursor is
2808 not possible. */
2809
2810 if (m_wxwindow)
2811 {
2812 GdkWindow *window = GTK_PIZZA(m_wxwindow)->bin_window;
2813 if (window)
2814 gdk_window_set_cursor( window, cursor.GetCursor() );
2815
2816 if (!g_globalCursor.Ok())
2817 cursor = *wxSTANDARD_CURSOR;
2818
2819 window = m_widget->window;
2820 if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
2821 gdk_window_set_cursor( window, cursor.GetCursor() );
2822
2823 }
2824 else if ( m_widget )
2825 {
2826 GdkWindow *window = m_widget->window;
2827 if ( window && !GTK_WIDGET_NO_WINDOW(m_widget) )
2828 gdk_window_set_cursor( window, cursor.GetCursor() );
2829 }
2830 }
2831
2832 if (wxUpdateUIEvent::CanUpdate(this))
2833 UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
2834 }
2835
2836 void wxWindowGTK::DoGetSize( int *width, int *height ) const
2837 {
2838 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2839
2840 if (width) (*width) = m_width;
2841 if (height) (*height) = m_height;
2842 }
2843
2844 void wxWindowGTK::DoSetClientSize( int width, int height )
2845 {
2846 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2847
2848 if (m_wxwindow)
2849 {
2850 int dw = 0;
2851 int dh = 0;
2852
2853 if (m_hasScrolling)
2854 {
2855 GetScrollbarWidth(m_widget, dw, dh);
2856 }
2857
2858 const int border = GTK_CONTAINER(m_wxwindow)->border_width;
2859 dw += 2 * border;
2860 dh += 2 * border;
2861
2862 width += dw;
2863 height += dh;
2864 }
2865
2866 SetSize(width, height);
2867 }
2868
2869 void wxWindowGTK::DoGetClientSize( int *width, int *height ) const
2870 {
2871 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2872
2873 int w = m_width;
2874 int h = m_height;
2875
2876 if (m_wxwindow)
2877 {
2878 int dw = 0;
2879 int dh = 0;
2880
2881 if (m_hasScrolling)
2882 GetScrollbarWidth(m_widget, dw, dh);
2883
2884 const int border = GTK_CONTAINER(m_wxwindow)->border_width;
2885 dw += 2 * border;
2886 dh += 2 * border;
2887
2888 w -= dw;
2889 h -= dh;
2890 if (w < 0)
2891 w = 0;
2892 if (h < 0)
2893 h = 0;
2894 }
2895
2896 if (width) *width = w;
2897 if (height) *height = h;
2898 }
2899
2900 void wxWindowGTK::DoGetPosition( int *x, int *y ) const
2901 {
2902 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2903
2904 int dx = 0;
2905 int dy = 0;
2906 if (m_parent && m_parent->m_wxwindow)
2907 {
2908 GtkPizza *pizza = GTK_PIZZA(m_parent->m_wxwindow);
2909 dx = gtk_pizza_get_xoffset( pizza );
2910 dy = gtk_pizza_get_yoffset( pizza );
2911 }
2912
2913 if (m_x == -1 && m_y == -1)
2914 {
2915 GdkWindow *source = (GdkWindow *) NULL;
2916 if (m_wxwindow)
2917 source = GTK_PIZZA(m_wxwindow)->bin_window;
2918 else
2919 source = m_widget->window;
2920
2921 if (source)
2922 {
2923 int org_x = 0;
2924 int org_y = 0;
2925 gdk_window_get_origin( source, &org_x, &org_y );
2926
2927 if (GetParent())
2928 GetParent()->ScreenToClient(&org_x, &org_y);
2929
2930 wx_const_cast(wxWindowGTK*, this)->m_x = org_x;
2931 wx_const_cast(wxWindowGTK*, this)->m_y = org_y;
2932 }
2933 }
2934
2935 if (x) (*x) = m_x - dx;
2936 if (y) (*y) = m_y - dy;
2937 }
2938
2939 void wxWindowGTK::DoClientToScreen( int *x, int *y ) const
2940 {
2941 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2942
2943 if (!m_widget->window) return;
2944
2945 GdkWindow *source = (GdkWindow *) NULL;
2946 if (m_wxwindow)
2947 source = GTK_PIZZA(m_wxwindow)->bin_window;
2948 else
2949 source = m_widget->window;
2950
2951 int org_x = 0;
2952 int org_y = 0;
2953 gdk_window_get_origin( source, &org_x, &org_y );
2954
2955 if (!m_wxwindow)
2956 {
2957 if (GTK_WIDGET_NO_WINDOW (m_widget))
2958 {
2959 org_x += m_widget->allocation.x;
2960 org_y += m_widget->allocation.y;
2961 }
2962 }
2963
2964
2965 if (x)
2966 {
2967 if (GetLayoutDirection() == wxLayout_RightToLeft)
2968 *x = (GetClientSize().x - *x) + org_x;
2969 else
2970 *x += org_x;
2971 }
2972
2973 if (y) *y += org_y;
2974 }
2975
2976 void wxWindowGTK::DoScreenToClient( int *x, int *y ) const
2977 {
2978 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2979
2980 if (!m_widget->window) return;
2981
2982 GdkWindow *source = (GdkWindow *) NULL;
2983 if (m_wxwindow)
2984 source = GTK_PIZZA(m_wxwindow)->bin_window;
2985 else
2986 source = m_widget->window;
2987
2988 int org_x = 0;
2989 int org_y = 0;
2990 gdk_window_get_origin( source, &org_x, &org_y );
2991
2992 if (!m_wxwindow)
2993 {
2994 if (GTK_WIDGET_NO_WINDOW (m_widget))
2995 {
2996 org_x += m_widget->allocation.x;
2997 org_y += m_widget->allocation.y;
2998 }
2999 }
3000
3001 if (x)
3002 {
3003 if (GetLayoutDirection() == wxLayout_RightToLeft)
3004 *x = (GetClientSize().x - *x) - org_x;
3005 else
3006 *x -= org_x;
3007 }
3008 if (y) *y -= org_y;
3009 }
3010
3011 bool wxWindowGTK::Show( bool show )
3012 {
3013 wxCHECK_MSG( (m_widget != NULL), false, wxT("invalid window") );
3014
3015 if (!wxWindowBase::Show(show))
3016 {
3017 // nothing to do
3018 return false;
3019 }
3020
3021 if (show)
3022 {
3023 if (!m_showOnIdle)
3024 {
3025 gtk_widget_show( m_widget );
3026 wxShowEvent eventShow(GetId(), show);
3027 eventShow.SetEventObject(this);
3028 GetEventHandler()->ProcessEvent(eventShow);
3029 }
3030 }
3031 else
3032 {
3033 gtk_widget_hide( m_widget );
3034 wxShowEvent eventShow(GetId(), show);
3035 eventShow.SetEventObject(this);
3036 GetEventHandler()->ProcessEvent(eventShow);
3037 }
3038
3039 return true;
3040 }
3041
3042 void wxWindowGTK::DoEnable( bool enable )
3043 {
3044 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3045
3046 gtk_widget_set_sensitive( m_widget, enable );
3047 if ( m_wxwindow )
3048 gtk_widget_set_sensitive( m_wxwindow, enable );
3049 }
3050
3051 int wxWindowGTK::GetCharHeight() const
3052 {
3053 wxCHECK_MSG( (m_widget != NULL), 12, wxT("invalid window") );
3054
3055 wxFont font = GetFont();
3056 wxCHECK_MSG( font.Ok(), 12, wxT("invalid font") );
3057
3058 PangoContext *context = NULL;
3059 if (m_widget)
3060 context = gtk_widget_get_pango_context( m_widget );
3061
3062 if (!context)
3063 return 0;
3064
3065 PangoFontDescription *desc = font.GetNativeFontInfo()->description;
3066 PangoLayout *layout = pango_layout_new(context);
3067 pango_layout_set_font_description(layout, desc);
3068 pango_layout_set_text(layout, "H", 1);
3069 PangoLayoutLine *line = (PangoLayoutLine *)pango_layout_get_lines(layout)->data;
3070
3071 PangoRectangle rect;
3072 pango_layout_line_get_extents(line, NULL, &rect);
3073
3074 g_object_unref (layout);
3075
3076 return (int) PANGO_PIXELS(rect.height);
3077 }
3078
3079 int wxWindowGTK::GetCharWidth() const
3080 {
3081 wxCHECK_MSG( (m_widget != NULL), 8, wxT("invalid window") );
3082
3083 wxFont font = GetFont();
3084 wxCHECK_MSG( font.Ok(), 8, wxT("invalid font") );
3085
3086 PangoContext *context = NULL;
3087 if (m_widget)
3088 context = gtk_widget_get_pango_context( m_widget );
3089
3090 if (!context)
3091 return 0;
3092
3093 PangoFontDescription *desc = font.GetNativeFontInfo()->description;
3094 PangoLayout *layout = pango_layout_new(context);
3095 pango_layout_set_font_description(layout, desc);
3096 pango_layout_set_text(layout, "g", 1);
3097 PangoLayoutLine *line = (PangoLayoutLine *)pango_layout_get_lines(layout)->data;
3098
3099 PangoRectangle rect;
3100 pango_layout_line_get_extents(line, NULL, &rect);
3101
3102 g_object_unref (layout);
3103
3104 return (int) PANGO_PIXELS(rect.width);
3105 }
3106
3107 void wxWindowGTK::GetTextExtent( const wxString& string,
3108 int *x,
3109 int *y,
3110 int *descent,
3111 int *externalLeading,
3112 const wxFont *theFont ) const
3113 {
3114 wxFont fontToUse = theFont ? *theFont : GetFont();
3115
3116 wxCHECK_RET( fontToUse.Ok(), wxT("invalid font") );
3117
3118 if (string.empty())
3119 {
3120 if (x) (*x) = 0;
3121 if (y) (*y) = 0;
3122 return;
3123 }
3124
3125 PangoContext *context = NULL;
3126 if (m_widget)
3127 context = gtk_widget_get_pango_context( m_widget );
3128
3129 if (!context)
3130 {
3131 if (x) (*x) = 0;
3132 if (y) (*y) = 0;
3133 return;
3134 }
3135
3136 PangoFontDescription *desc = fontToUse.GetNativeFontInfo()->description;
3137 PangoLayout *layout = pango_layout_new(context);
3138 pango_layout_set_font_description(layout, desc);
3139 {
3140 const wxCharBuffer data = wxGTK_CONV( string );
3141 if ( data )
3142 pango_layout_set_text(layout, data, strlen(data));
3143 }
3144
3145 PangoRectangle rect;
3146 pango_layout_get_extents(layout, NULL, &rect);
3147
3148 if (x) (*x) = (wxCoord) PANGO_PIXELS(rect.width);
3149 if (y) (*y) = (wxCoord) PANGO_PIXELS(rect.height);
3150 if (descent)
3151 {
3152 PangoLayoutIter *iter = pango_layout_get_iter(layout);
3153 int baseline = pango_layout_iter_get_baseline(iter);
3154 pango_layout_iter_free(iter);
3155 *descent = *y - PANGO_PIXELS(baseline);
3156 }
3157 if (externalLeading) (*externalLeading) = 0; // ??
3158
3159 g_object_unref (layout);
3160 }
3161
3162 bool wxWindowGTK::GTKSetDelayedFocusIfNeeded()
3163 {
3164 if ( g_delayedFocus == this )
3165 {
3166 if ( GTK_WIDGET_REALIZED(m_widget) )
3167 {
3168 gtk_widget_grab_focus(m_widget);
3169 g_delayedFocus = NULL;
3170
3171 return true;
3172 }
3173 }
3174
3175 return false;
3176 }
3177
3178 void wxWindowGTK::SetFocus()
3179 {
3180 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
3181 if ( m_hasFocus )
3182 {
3183 // don't do anything if we already have focus
3184 return;
3185 }
3186
3187 if (m_wxwindow)
3188 {
3189 if (!GTK_WIDGET_HAS_FOCUS (m_wxwindow))
3190 {
3191 gtk_widget_grab_focus (m_wxwindow);
3192 }
3193 }
3194 else if (m_widget)
3195 {
3196 if (GTK_IS_CONTAINER(m_widget))
3197 {
3198 if (IsKindOf(CLASSINFO(wxRadioButton)))
3199 {
3200 gtk_widget_grab_focus (m_widget);
3201 return;
3202 }
3203
3204 gtk_widget_child_focus( m_widget, GTK_DIR_TAB_FORWARD );
3205 }
3206 else
3207 if (GTK_WIDGET_CAN_FOCUS(m_widget) && !GTK_WIDGET_HAS_FOCUS (m_widget) )
3208 {
3209
3210 if (!GTK_WIDGET_REALIZED(m_widget))
3211 {
3212 // we can't set the focus to the widget now so we remember that
3213 // it should be focused and will do it later, during the idle
3214 // time, as soon as we can
3215 wxLogTrace(TRACE_FOCUS,
3216 _T("Delaying setting focus to %s(%s)"),
3217 GetClassInfo()->GetClassName(), GetLabel().c_str());
3218
3219 g_delayedFocus = this;
3220 }
3221 else
3222 {
3223 wxLogTrace(TRACE_FOCUS,
3224 _T("Setting focus to %s(%s)"),
3225 GetClassInfo()->GetClassName(), GetLabel().c_str());
3226
3227 gtk_widget_grab_focus (m_widget);
3228 }
3229 }
3230 else
3231 {
3232 wxLogTrace(TRACE_FOCUS,
3233 _T("Can't set focus to %s(%s)"),
3234 GetClassInfo()->GetClassName(), GetLabel().c_str());
3235 }
3236 }
3237 }
3238
3239 bool wxWindowGTK::Reparent( wxWindowBase *newParentBase )
3240 {
3241 wxCHECK_MSG( (m_widget != NULL), false, wxT("invalid window") );
3242
3243 wxWindowGTK *oldParent = m_parent,
3244 *newParent = (wxWindowGTK *)newParentBase;
3245
3246 wxASSERT( GTK_IS_WIDGET(m_widget) );
3247
3248 if ( !wxWindowBase::Reparent(newParent) )
3249 return false;
3250
3251 wxASSERT( GTK_IS_WIDGET(m_widget) );
3252
3253 /* prevent GTK from deleting the widget arbitrarily */
3254 gtk_widget_ref( m_widget );
3255
3256 if (oldParent)
3257 {
3258 gtk_container_remove( GTK_CONTAINER(m_widget->parent), m_widget );
3259 }
3260
3261 wxASSERT( GTK_IS_WIDGET(m_widget) );
3262
3263 if (newParent)
3264 {
3265 if (GTK_WIDGET_VISIBLE (newParent->m_widget))
3266 {
3267 m_showOnIdle = true;
3268 gtk_widget_hide( m_widget );
3269 }
3270
3271 /* insert GTK representation */
3272 (*(newParent->m_insertCallback))(newParent, this);
3273 }
3274
3275 /* reverse: prevent GTK from deleting the widget arbitrarily */
3276 gtk_widget_unref( m_widget );
3277
3278 SetLayoutDirection(wxLayout_Default);
3279
3280 return true;
3281 }
3282
3283 void wxWindowGTK::DoAddChild(wxWindowGTK *child)
3284 {
3285 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
3286
3287 wxASSERT_MSG( (child != NULL), wxT("invalid child window") );
3288
3289 wxASSERT_MSG( (m_insertCallback != NULL), wxT("invalid child insertion function") );
3290
3291 /* add to list */
3292 AddChild( child );
3293
3294 /* insert GTK representation */
3295 (*m_insertCallback)(this, child);
3296 }
3297
3298 void wxWindowGTK::AddChild(wxWindowBase *child)
3299 {
3300 wxWindowBase::AddChild(child);
3301 m_dirtyTabOrder = true;
3302 if (g_isIdle)
3303 wxapp_install_idle_handler();
3304 }
3305
3306 void wxWindowGTK::RemoveChild(wxWindowBase *child)
3307 {
3308 wxWindowBase::RemoveChild(child);
3309 m_dirtyTabOrder = true;
3310 if (g_isIdle)
3311 wxapp_install_idle_handler();
3312 }
3313
3314 /* static */
3315 wxLayoutDirection wxWindowGTK::GTKGetLayout(GtkWidget *widget)
3316 {
3317 return gtk_widget_get_direction(GTK_WIDGET(widget)) == GTK_TEXT_DIR_RTL
3318 ? wxLayout_RightToLeft
3319 : wxLayout_LeftToRight;
3320 }
3321
3322 /* static */
3323 void wxWindowGTK::GTKSetLayout(GtkWidget *widget, wxLayoutDirection dir)
3324 {
3325 wxASSERT_MSG( dir != wxLayout_Default, _T("invalid layout direction") );
3326
3327 gtk_widget_set_direction(GTK_WIDGET(widget),
3328 dir == wxLayout_RightToLeft ? GTK_TEXT_DIR_RTL
3329 : GTK_TEXT_DIR_LTR);
3330 }
3331
3332 wxLayoutDirection wxWindowGTK::GetLayoutDirection() const
3333 {
3334 return GTKGetLayout(m_widget);
3335 }
3336
3337 void wxWindowGTK::SetLayoutDirection(wxLayoutDirection dir)
3338 {
3339 if ( dir == wxLayout_Default )
3340 {
3341 const wxWindow *const parent = GetParent();
3342 if ( parent )
3343 {
3344 // inherit layout from parent.
3345 dir = parent->GetLayoutDirection();
3346 }
3347 else // no parent, use global default layout
3348 {
3349 dir = wxTheApp->GetLayoutDirection();
3350 }
3351 }
3352
3353 if ( dir == wxLayout_Default )
3354 return;
3355
3356 GTKSetLayout(m_widget, dir);
3357
3358 if (m_wxwindow)
3359 GTKSetLayout(m_wxwindow, dir);
3360 }
3361
3362 wxCoord
3363 wxWindowGTK::AdjustForLayoutDirection(wxCoord x,
3364 wxCoord WXUNUSED(width),
3365 wxCoord WXUNUSED(widthTotal)) const
3366 {
3367 // We now mirrors the coordinates of RTL windows in GtkPizza
3368 return x;
3369 }
3370
3371 void wxWindowGTK::DoMoveInTabOrder(wxWindow *win, MoveKind move)
3372 {
3373 wxWindowBase::DoMoveInTabOrder(win, move);
3374 m_dirtyTabOrder = true;
3375 if (g_isIdle)
3376 wxapp_install_idle_handler();
3377 }
3378
3379 bool wxWindowGTK::DoNavigateIn(int flags)
3380 {
3381 if ( flags & wxNavigationKeyEvent::WinChange )
3382 {
3383 wxFAIL_MSG( _T("not implemented") );
3384
3385 return false;
3386 }
3387 else // navigate inside the container
3388 {
3389 wxWindow *parent = wxGetTopLevelParent(this);
3390 wxCHECK_MSG( parent, false, _T("every window must have a TLW parent") );
3391
3392 GtkDirectionType dir;
3393 dir = flags & wxNavigationKeyEvent::IsForward ? GTK_DIR_TAB_FORWARD
3394 : GTK_DIR_TAB_BACKWARD;
3395
3396 gboolean rc;
3397 g_signal_emit_by_name(parent->m_widget, "focus", dir, &rc);
3398
3399 return rc == TRUE;
3400 }
3401 }
3402
3403 bool wxWindowGTK::GTKWidgetNeedsMnemonic() const
3404 {
3405 // none needed by default
3406 return false;
3407 }
3408
3409 void wxWindowGTK::GTKWidgetDoSetMnemonic(GtkWidget* WXUNUSED(w))
3410 {
3411 // nothing to do by default since none is needed
3412 }
3413
3414 void wxWindowGTK::RealizeTabOrder()
3415 {
3416 if (m_wxwindow)
3417 {
3418 if ( !m_children.empty() )
3419 {
3420 // we don't only construct the correct focus chain but also use
3421 // this opportunity to update the mnemonic widgets for the widgets
3422 // that need them
3423
3424 GList *chain = NULL;
3425 wxWindowGTK* mnemonicWindow = NULL;
3426
3427 for ( wxWindowList::const_iterator i = m_children.begin();
3428 i != m_children.end();
3429 ++i )
3430 {
3431 wxWindowGTK *win = *i;
3432
3433 if ( mnemonicWindow )
3434 {
3435 if ( win->AcceptsFocusFromKeyboard() )
3436 {
3437 // wxComboBox et al. needs to focus on on a different
3438 // widget than m_widget, so if the main widget isn't
3439 // focusable try the connect widget
3440 GtkWidget* w = win->m_widget;
3441 if ( !GTK_WIDGET_CAN_FOCUS(w) )
3442 {
3443 w = win->GetConnectWidget();
3444 if ( !GTK_WIDGET_CAN_FOCUS(w) )
3445 w = NULL;
3446 }
3447
3448 if ( w )
3449 {
3450 mnemonicWindow->GTKWidgetDoSetMnemonic(w);
3451 mnemonicWindow = NULL;
3452 }
3453 }
3454 }
3455 else if ( win->GTKWidgetNeedsMnemonic() )
3456 {
3457 mnemonicWindow = win;
3458 }
3459
3460 chain = g_list_prepend(chain, win->m_widget);
3461 }
3462
3463 chain = g_list_reverse(chain);
3464
3465 gtk_container_set_focus_chain(GTK_CONTAINER(m_wxwindow), chain);
3466 g_list_free(chain);
3467 }
3468 else // no children
3469 {
3470 gtk_container_unset_focus_chain(GTK_CONTAINER(m_wxwindow));
3471 }
3472 }
3473 }
3474
3475 void wxWindowGTK::Raise()
3476 {
3477 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3478
3479 if (m_wxwindow && m_wxwindow->window)
3480 {
3481 gdk_window_raise( m_wxwindow->window );
3482 }
3483 else if (m_widget->window)
3484 {
3485 gdk_window_raise( m_widget->window );
3486 }
3487 }
3488
3489 void wxWindowGTK::Lower()
3490 {
3491 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3492
3493 if (m_wxwindow && m_wxwindow->window)
3494 {
3495 gdk_window_lower( m_wxwindow->window );
3496 }
3497 else if (m_widget->window)
3498 {
3499 gdk_window_lower( m_widget->window );
3500 }
3501 }
3502
3503 bool wxWindowGTK::SetCursor( const wxCursor &cursor )
3504 {
3505 if ( !wxWindowBase::SetCursor(cursor.Ok() ? cursor : *wxSTANDARD_CURSOR) )
3506 return false;
3507
3508 GTKUpdateCursor();
3509
3510 return true;
3511 }
3512
3513 void wxWindowGTK::GTKUpdateCursor()
3514 {
3515 wxCursor cursor(g_globalCursor.Ok() ? g_globalCursor : GetCursor());
3516 if ( cursor.Ok() )
3517 {
3518 wxArrayGdkWindows windowsThis;
3519 GdkWindow * const winThis = GTKGetWindow(windowsThis);
3520 if ( winThis )
3521 {
3522 gdk_window_set_cursor(winThis, cursor.GetCursor());
3523 }
3524 else
3525 {
3526 const size_t count = windowsThis.size();
3527 for ( size_t n = 0; n < count; n++ )
3528 {
3529 GdkWindow *win = windowsThis[n];
3530 if ( !win )
3531 {
3532 wxFAIL_MSG(_T("NULL window returned by GTKGetWindow()?"));
3533 continue;
3534 }
3535
3536 gdk_window_set_cursor(win, cursor.GetCursor());
3537 }
3538 }
3539 }
3540 }
3541
3542 void wxWindowGTK::WarpPointer( int x, int y )
3543 {
3544 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3545
3546 // We provide this function ourselves as it is
3547 // missing in GDK (top of this file).
3548
3549 GdkWindow *window = (GdkWindow*) NULL;
3550 if (m_wxwindow)
3551 window = GTK_PIZZA(m_wxwindow)->bin_window;
3552 else
3553 window = GetConnectWidget()->window;
3554
3555 if (window)
3556 gdk_window_warp_pointer( window, x, y );
3557 }
3558
3559 wxWindowGTK::ScrollDir wxWindowGTK::ScrollDirFromRange(GtkRange *range) const
3560 {
3561 // find the scrollbar which generated the event
3562 for ( int dir = 0; dir < ScrollDir_Max; dir++ )
3563 {
3564 if ( range == m_scrollBar[dir] )
3565 return (ScrollDir)dir;
3566 }
3567
3568 wxFAIL_MSG( _T("event from unknown scrollbar received") );
3569
3570 return ScrollDir_Max;
3571 }
3572
3573 bool wxWindowGTK::DoScrollByUnits(ScrollDir dir, ScrollUnit unit, int units)
3574 {
3575 bool changed = false;
3576 GtkRange* range = m_scrollBar[dir];
3577 if ( range && units )
3578 {
3579 GtkAdjustment* adj = range->adjustment;
3580 gdouble inc = unit == ScrollUnit_Line ? adj->step_increment
3581 : adj->page_increment;
3582
3583 const int posOld = int(adj->value + 0.5);
3584 gtk_range_set_value(range, posOld + units*inc);
3585
3586 changed = int(adj->value + 0.5) != posOld;
3587 }
3588
3589 return changed;
3590 }
3591
3592 bool wxWindowGTK::ScrollLines(int lines)
3593 {
3594 return DoScrollByUnits(ScrollDir_Vert, ScrollUnit_Line, lines);
3595 }
3596
3597 bool wxWindowGTK::ScrollPages(int pages)
3598 {
3599 return DoScrollByUnits(ScrollDir_Vert, ScrollUnit_Page, pages);
3600 }
3601
3602 void wxWindowGTK::Refresh( bool eraseBackground, const wxRect *rect )
3603 {
3604 if (!m_widget)
3605 return;
3606 if (!m_widget->window)
3607 return;
3608
3609 if (m_wxwindow)
3610 {
3611 if (!GTK_PIZZA(m_wxwindow)->bin_window) return;
3612
3613 GdkRectangle gdk_rect,
3614 *p;
3615 if (rect)
3616 {
3617 gdk_rect.x = rect->x;
3618 gdk_rect.y = rect->y;
3619 gdk_rect.width = rect->width;
3620 gdk_rect.height = rect->height;
3621 if (GetLayoutDirection() == wxLayout_RightToLeft)
3622 gdk_rect.x = GetClientSize().x - gdk_rect.x - gdk_rect.width;
3623
3624 p = &gdk_rect;
3625 }
3626 else // invalidate everything
3627 {
3628 p = NULL;
3629 }
3630
3631 gdk_window_invalidate_rect( GTK_PIZZA(m_wxwindow)->bin_window, p, TRUE );
3632 }
3633 }
3634
3635 void wxWindowGTK::Update()
3636 {
3637 GtkUpdate();
3638
3639 // when we call Update() we really want to update the window immediately on
3640 // screen, even if it means flushing the entire queue and hence slowing down
3641 // everything -- but it should still be done, it's just that Update() should
3642 // be called very rarely
3643 gdk_flush();
3644 }
3645
3646 void wxWindowGTK::GtkUpdate()
3647 {
3648 if (m_wxwindow && GTK_PIZZA(m_wxwindow)->bin_window)
3649 gdk_window_process_updates( GTK_PIZZA(m_wxwindow)->bin_window, FALSE );
3650 if (m_widget && m_widget->window)
3651 gdk_window_process_updates( m_widget->window, FALSE );
3652
3653 // for consistency with other platforms (and also because it's convenient
3654 // to be able to update an entire TLW by calling Update() only once), we
3655 // should also update all our children here
3656 for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
3657 node;
3658 node = node->GetNext() )
3659 {
3660 node->GetData()->GtkUpdate();
3661 }
3662 }
3663
3664 bool wxWindowGTK::DoIsExposed( int x, int y ) const
3665 {
3666 return m_updateRegion.Contains(x, y) != wxOutRegion;
3667 }
3668
3669
3670 bool wxWindowGTK::DoIsExposed( int x, int y, int w, int h ) const
3671 {
3672 if (GetLayoutDirection() == wxLayout_RightToLeft)
3673 return m_updateRegion.Contains(x-w, y, w, h) != wxOutRegion;
3674 else
3675 return m_updateRegion.Contains(x, y, w, h) != wxOutRegion;
3676 }
3677
3678 void wxWindowGTK::GtkSendPaintEvents()
3679 {
3680 if (!m_wxwindow)
3681 {
3682 m_updateRegion.Clear();
3683 return;
3684 }
3685
3686 // Clip to paint region in wxClientDC
3687 m_clipPaintRegion = true;
3688
3689 m_nativeUpdateRegion = m_updateRegion;
3690
3691 if (GetLayoutDirection() == wxLayout_RightToLeft)
3692 {
3693 // Transform m_updateRegion under RTL
3694 m_updateRegion.Clear();
3695
3696 gint width;
3697 gdk_window_get_geometry( GTK_PIZZA(m_wxwindow)->bin_window,
3698 NULL, NULL, &width, NULL, NULL );
3699
3700 wxRegionIterator upd( m_nativeUpdateRegion );
3701 while (upd)
3702 {
3703 wxRect rect;
3704 rect.x = upd.GetX();
3705 rect.y = upd.GetY();
3706 rect.width = upd.GetWidth();
3707 rect.height = upd.GetHeight();
3708
3709 rect.x = width - rect.x - rect.width;
3710 m_updateRegion.Union( rect );
3711
3712 ++upd;
3713 }
3714 }
3715
3716 // widget to draw on
3717 GtkPizza *pizza = GTK_PIZZA (m_wxwindow);
3718
3719 if (GetThemeEnabled() && (GetBackgroundStyle() == wxBG_STYLE_SYSTEM))
3720 {
3721 // find ancestor from which to steal background
3722 wxWindow *parent = wxGetTopLevelParent((wxWindow *)this);
3723 if (!parent)
3724 parent = (wxWindow*)this;
3725
3726 if (GTK_WIDGET_MAPPED(parent->m_widget))
3727 {
3728 wxRegionIterator upd( m_nativeUpdateRegion );
3729 while (upd)
3730 {
3731 GdkRectangle rect;
3732 rect.x = upd.GetX();
3733 rect.y = upd.GetY();
3734 rect.width = upd.GetWidth();
3735 rect.height = upd.GetHeight();
3736
3737 gtk_paint_flat_box( parent->m_widget->style,
3738 pizza->bin_window,
3739 (GtkStateType)GTK_WIDGET_STATE(m_wxwindow),
3740 GTK_SHADOW_NONE,
3741 &rect,
3742 parent->m_widget,
3743 (char *)"base",
3744 0, 0, -1, -1 );
3745
3746 ++upd;
3747 }
3748 }
3749 }
3750 else
3751 {
3752 wxWindowDC dc( (wxWindow*)this );
3753 dc.SetClippingRegion( m_updateRegion );
3754
3755 wxEraseEvent erase_event( GetId(), &dc );
3756 erase_event.SetEventObject( this );
3757
3758 GetEventHandler()->ProcessEvent(erase_event);
3759 }
3760
3761 wxNcPaintEvent nc_paint_event( GetId() );
3762 nc_paint_event.SetEventObject( this );
3763 GetEventHandler()->ProcessEvent( nc_paint_event );
3764
3765 wxPaintEvent paint_event( GetId() );
3766 paint_event.SetEventObject( this );
3767 GetEventHandler()->ProcessEvent( paint_event );
3768
3769 m_clipPaintRegion = false;
3770
3771 m_updateRegion.Clear();
3772 m_nativeUpdateRegion.Clear();
3773 }
3774
3775 void wxWindowGTK::SetDoubleBuffered( bool on )
3776 {
3777 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3778
3779 if ( m_wxwindow )
3780 gtk_widget_set_double_buffered( m_wxwindow, on );
3781 }
3782
3783 bool wxWindowGTK::IsDoubleBuffered() const
3784 {
3785 return GTK_WIDGET_DOUBLE_BUFFERED( m_wxwindow );
3786 }
3787
3788 void wxWindowGTK::ClearBackground()
3789 {
3790 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
3791 }
3792
3793 #if wxUSE_TOOLTIPS
3794 void wxWindowGTK::DoSetToolTip( wxToolTip *tip )
3795 {
3796 wxWindowBase::DoSetToolTip(tip);
3797
3798 if (m_tooltip)
3799 m_tooltip->Apply( (wxWindow *)this );
3800 }
3801
3802 void wxWindowGTK::ApplyToolTip( GtkTooltips *tips, const wxChar *tip )
3803 {
3804 if (tip)
3805 {
3806 wxString tmp( tip );
3807 gtk_tooltips_set_tip( tips, GetConnectWidget(), wxGTK_CONV(tmp), (gchar*) NULL );
3808 }
3809 else
3810 {
3811 gtk_tooltips_set_tip( tips, GetConnectWidget(), NULL, NULL);
3812 }
3813 }
3814 #endif // wxUSE_TOOLTIPS
3815
3816 bool wxWindowGTK::SetBackgroundColour( const wxColour &colour )
3817 {
3818 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
3819
3820 if (!wxWindowBase::SetBackgroundColour(colour))
3821 return false;
3822
3823 if (colour.Ok())
3824 {
3825 // We need the pixel value e.g. for background clearing.
3826 m_backgroundColour.CalcPixel(gtk_widget_get_colormap(m_widget));
3827 }
3828
3829 // apply style change (forceStyle=true so that new style is applied
3830 // even if the bg colour changed from valid to wxNullColour)
3831 if (GetBackgroundStyle() != wxBG_STYLE_CUSTOM)
3832 ApplyWidgetStyle(true);
3833
3834 return true;
3835 }
3836
3837 bool wxWindowGTK::SetForegroundColour( const wxColour &colour )
3838 {
3839 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
3840
3841 if (!wxWindowBase::SetForegroundColour(colour))
3842 {
3843 return false;
3844 }
3845
3846 if (colour.Ok())
3847 {
3848 // We need the pixel value e.g. for background clearing.
3849 m_foregroundColour.CalcPixel(gtk_widget_get_colormap(m_widget));
3850 }
3851
3852 // apply style change (forceStyle=true so that new style is applied
3853 // even if the bg colour changed from valid to wxNullColour):
3854 ApplyWidgetStyle(true);
3855
3856 return true;
3857 }
3858
3859 PangoContext *wxWindowGTK::GtkGetPangoDefaultContext()
3860 {
3861 return gtk_widget_get_pango_context( m_widget );
3862 }
3863
3864 GtkRcStyle *wxWindowGTK::CreateWidgetStyle(bool forceStyle)
3865 {
3866 // do we need to apply any changes at all?
3867 if ( !forceStyle &&
3868 !m_font.Ok() &&
3869 !m_foregroundColour.Ok() && !m_backgroundColour.Ok() )
3870 {
3871 return NULL;
3872 }
3873
3874 GtkRcStyle *style = gtk_rc_style_new();
3875
3876 if ( m_font.Ok() )
3877 {
3878 style->font_desc =
3879 pango_font_description_copy( m_font.GetNativeFontInfo()->description );
3880 }
3881
3882 int flagsNormal = 0,
3883 flagsPrelight = 0,
3884 flagsActive = 0,
3885 flagsInsensitive = 0;
3886
3887 if ( m_foregroundColour.Ok() )
3888 {
3889 const GdkColor *fg = m_foregroundColour.GetColor();
3890
3891 style->fg[GTK_STATE_NORMAL] =
3892 style->text[GTK_STATE_NORMAL] = *fg;
3893 flagsNormal |= GTK_RC_FG | GTK_RC_TEXT;
3894
3895 style->fg[GTK_STATE_PRELIGHT] =
3896 style->text[GTK_STATE_PRELIGHT] = *fg;
3897 flagsPrelight |= GTK_RC_FG | GTK_RC_TEXT;
3898
3899 style->fg[GTK_STATE_ACTIVE] =
3900 style->text[GTK_STATE_ACTIVE] = *fg;
3901 flagsActive |= GTK_RC_FG | GTK_RC_TEXT;
3902 }
3903
3904 if ( m_backgroundColour.Ok() )
3905 {
3906 const GdkColor *bg = m_backgroundColour.GetColor();
3907
3908 style->bg[GTK_STATE_NORMAL] =
3909 style->base[GTK_STATE_NORMAL] = *bg;
3910 flagsNormal |= GTK_RC_BG | GTK_RC_BASE;
3911
3912 style->bg[GTK_STATE_PRELIGHT] =
3913 style->base[GTK_STATE_PRELIGHT] = *bg;
3914 flagsPrelight |= GTK_RC_BG | GTK_RC_BASE;
3915
3916 style->bg[GTK_STATE_ACTIVE] =
3917 style->base[GTK_STATE_ACTIVE] = *bg;
3918 flagsActive |= GTK_RC_BG | GTK_RC_BASE;
3919
3920 style->bg[GTK_STATE_INSENSITIVE] =
3921 style->base[GTK_STATE_INSENSITIVE] = *bg;
3922 flagsInsensitive |= GTK_RC_BG | GTK_RC_BASE;
3923 }
3924
3925 style->color_flags[GTK_STATE_NORMAL] = (GtkRcFlags)flagsNormal;
3926 style->color_flags[GTK_STATE_PRELIGHT] = (GtkRcFlags)flagsPrelight;
3927 style->color_flags[GTK_STATE_ACTIVE] = (GtkRcFlags)flagsActive;
3928 style->color_flags[GTK_STATE_INSENSITIVE] = (GtkRcFlags)flagsInsensitive;
3929
3930 return style;
3931 }
3932
3933 void wxWindowGTK::ApplyWidgetStyle(bool forceStyle)
3934 {
3935 GtkRcStyle *style = CreateWidgetStyle(forceStyle);
3936 if ( style )
3937 {
3938 DoApplyWidgetStyle(style);
3939 gtk_rc_style_unref(style);
3940 }
3941
3942 // Style change may affect GTK+'s size calculation:
3943 InvalidateBestSize();
3944 }
3945
3946 void wxWindowGTK::DoApplyWidgetStyle(GtkRcStyle *style)
3947 {
3948 if (m_wxwindow)
3949 gtk_widget_modify_style(m_wxwindow, style);
3950 else
3951 gtk_widget_modify_style(m_widget, style);
3952 }
3953
3954 bool wxWindowGTK::SetBackgroundStyle(wxBackgroundStyle style)
3955 {
3956 wxWindowBase::SetBackgroundStyle(style);
3957
3958 if (style == wxBG_STYLE_CUSTOM)
3959 {
3960 GdkWindow *window = (GdkWindow*) NULL;
3961 if (m_wxwindow)
3962 window = GTK_PIZZA(m_wxwindow)->bin_window;
3963 else
3964 window = GetConnectWidget()->window;
3965
3966 if (window)
3967 {
3968 // Make sure GDK/X11 doesn't refresh the window
3969 // automatically.
3970 gdk_window_set_back_pixmap( window, None, False );
3971 #ifdef __X__
3972 Display* display = GDK_WINDOW_DISPLAY(window);
3973 XFlush(display);
3974 #endif
3975 m_needsStyleChange = false;
3976 }
3977 else
3978 // Do in OnIdle, because the window is not yet available
3979 m_needsStyleChange = true;
3980
3981 // Don't apply widget style, or we get a grey background
3982 }
3983 else
3984 {
3985 // apply style change (forceStyle=true so that new style is applied
3986 // even if the bg colour changed from valid to wxNullColour):
3987 ApplyWidgetStyle(true);
3988 }
3989 return true;
3990 }
3991
3992 #if wxUSE_DRAG_AND_DROP
3993
3994 void wxWindowGTK::SetDropTarget( wxDropTarget *dropTarget )
3995 {
3996 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
3997
3998 GtkWidget *dnd_widget = GetConnectWidget();
3999
4000 if (m_dropTarget) m_dropTarget->UnregisterWidget( dnd_widget );
4001
4002 if (m_dropTarget) delete m_dropTarget;
4003 m_dropTarget = dropTarget;
4004
4005 if (m_dropTarget) m_dropTarget->RegisterWidget( dnd_widget );
4006 }
4007
4008 #endif // wxUSE_DRAG_AND_DROP
4009
4010 GtkWidget* wxWindowGTK::GetConnectWidget()
4011 {
4012 GtkWidget *connect_widget = m_widget;
4013 if (m_wxwindow) connect_widget = m_wxwindow;
4014
4015 return connect_widget;
4016 }
4017
4018 bool wxWindowGTK::GTKIsOwnWindow(GdkWindow *window) const
4019 {
4020 wxArrayGdkWindows windowsThis;
4021 GdkWindow * const winThis = GTKGetWindow(windowsThis);
4022
4023 return winThis ? window == winThis
4024 : windowsThis.Index(window) != wxNOT_FOUND;
4025 }
4026
4027 GdkWindow *wxWindowGTK::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
4028 {
4029 return m_wxwindow ? GTK_PIZZA(m_wxwindow)->bin_window : m_widget->window;
4030 }
4031
4032 bool wxWindowGTK::SetFont( const wxFont &font )
4033 {
4034 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
4035
4036 if (!wxWindowBase::SetFont(font))
4037 return false;
4038
4039 // apply style change (forceStyle=true so that new style is applied
4040 // even if the font changed from valid to wxNullFont):
4041 ApplyWidgetStyle(true);
4042
4043 return true;
4044 }
4045
4046 void wxWindowGTK::DoCaptureMouse()
4047 {
4048 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4049
4050 GdkWindow *window = (GdkWindow*) NULL;
4051 if (m_wxwindow)
4052 window = GTK_PIZZA(m_wxwindow)->bin_window;
4053 else
4054 window = GetConnectWidget()->window;
4055
4056 wxCHECK_RET( window, _T("CaptureMouse() failed") );
4057
4058 const wxCursor* cursor = &m_cursor;
4059 if (!cursor->Ok())
4060 cursor = wxSTANDARD_CURSOR;
4061
4062 gdk_pointer_grab( window, FALSE,
4063 (GdkEventMask)
4064 (GDK_BUTTON_PRESS_MASK |
4065 GDK_BUTTON_RELEASE_MASK |
4066 GDK_POINTER_MOTION_HINT_MASK |
4067 GDK_POINTER_MOTION_MASK),
4068 (GdkWindow *) NULL,
4069 cursor->GetCursor(),
4070 (guint32)GDK_CURRENT_TIME );
4071 g_captureWindow = this;
4072 g_captureWindowHasMouse = true;
4073 }
4074
4075 void wxWindowGTK::DoReleaseMouse()
4076 {
4077 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4078
4079 wxCHECK_RET( g_captureWindow, wxT("can't release mouse - not captured") );
4080
4081 g_captureWindow = (wxWindowGTK*) NULL;
4082
4083 GdkWindow *window = (GdkWindow*) NULL;
4084 if (m_wxwindow)
4085 window = GTK_PIZZA(m_wxwindow)->bin_window;
4086 else
4087 window = GetConnectWidget()->window;
4088
4089 if (!window)
4090 return;
4091
4092 gdk_pointer_ungrab ( (guint32)GDK_CURRENT_TIME );
4093 }
4094
4095 /* static */
4096 wxWindow *wxWindowBase::GetCapture()
4097 {
4098 return (wxWindow *)g_captureWindow;
4099 }
4100
4101 bool wxWindowGTK::IsRetained() const
4102 {
4103 return false;
4104 }
4105
4106 void wxWindowGTK::BlockScrollEvent()
4107 {
4108 wxASSERT(!m_blockScrollEvent);
4109 m_blockScrollEvent = true;
4110 }
4111
4112 void wxWindowGTK::UnblockScrollEvent()
4113 {
4114 wxASSERT(m_blockScrollEvent);
4115 m_blockScrollEvent = false;
4116 }
4117
4118 void wxWindowGTK::SetScrollbar(int orient,
4119 int pos,
4120 int thumbVisible,
4121 int range,
4122 bool WXUNUSED(update))
4123 {
4124 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4125 wxCHECK_RET( m_wxwindow != NULL, wxT("window needs client area for scrolling") );
4126
4127 if (range > 0)
4128 {
4129 m_hasScrolling = true;
4130 }
4131 else
4132 {
4133 // GtkRange requires upper > lower
4134 range =
4135 thumbVisible = 1;
4136 }
4137
4138 if (pos > range - thumbVisible)
4139 pos = range - thumbVisible;
4140 if (pos < 0)
4141 pos = 0;
4142 GtkAdjustment* adj = m_scrollBar[ScrollDirFromOrient(orient)]->adjustment;
4143 adj->step_increment = 1;
4144 adj->page_increment =
4145 adj->page_size = thumbVisible;
4146 adj->upper = range;
4147 SetScrollPos(orient, pos);
4148 gtk_adjustment_changed(adj);
4149 }
4150
4151 void wxWindowGTK::SetScrollPos(int orient, int pos, bool WXUNUSED(refresh))
4152 {
4153 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4154 wxCHECK_RET( m_wxwindow != NULL, wxT("window needs client area for scrolling") );
4155
4156 // This check is more than an optimization. Without it, the slider
4157 // will not move smoothly while tracking when using wxScrollHelper.
4158 if (GetScrollPos(orient) != pos)
4159 {
4160 const int dir = ScrollDirFromOrient(orient);
4161 GtkAdjustment* adj = m_scrollBar[dir]->adjustment;
4162 const int max = int(adj->upper - adj->page_size);
4163 if (pos > max)
4164 pos = max;
4165 if (pos < 0)
4166 pos = 0;
4167 m_scrollPos[dir] = adj->value = pos;
4168
4169 // If a "value_changed" signal emission is not already in progress
4170 if (!m_blockValueChanged[dir])
4171 {
4172 gtk_adjustment_value_changed(adj);
4173 }
4174 }
4175 }
4176
4177 int wxWindowGTK::GetScrollThumb(int orient) const
4178 {
4179 wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid window") );
4180 wxCHECK_MSG( m_wxwindow != NULL, 0, wxT("window needs client area for scrolling") );
4181
4182 return int(m_scrollBar[ScrollDirFromOrient(orient)]->adjustment->page_size);
4183 }
4184
4185 int wxWindowGTK::GetScrollPos( int orient ) const
4186 {
4187 wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid window") );
4188 wxCHECK_MSG( m_wxwindow != NULL, 0, wxT("window needs client area for scrolling") );
4189
4190 return int(m_scrollBar[ScrollDirFromOrient(orient)]->adjustment->value + 0.5);
4191 }
4192
4193 int wxWindowGTK::GetScrollRange( int orient ) const
4194 {
4195 wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid window") );
4196 wxCHECK_MSG( m_wxwindow != NULL, 0, wxT("window needs client area for scrolling") );
4197
4198 return int(m_scrollBar[ScrollDirFromOrient(orient)]->adjustment->upper);
4199 }
4200
4201 // Determine if increment is the same as +/-x, allowing for some small
4202 // difference due to possible inexactness in floating point arithmetic
4203 static inline bool IsScrollIncrement(double increment, double x)
4204 {
4205 wxASSERT(increment > 0);
4206 const double tolerance = 1.0 / 1024;
4207 return fabs(increment - fabs(x)) < tolerance;
4208 }
4209
4210 wxEventType wxWindowGTK::GetScrollEventType(GtkRange* range)
4211 {
4212 DEBUG_MAIN_THREAD
4213
4214 if (g_isIdle)
4215 wxapp_install_idle_handler();
4216
4217 wxASSERT(range == m_scrollBar[0] || range == m_scrollBar[1]);
4218
4219 const int barIndex = range == m_scrollBar[1];
4220 GtkAdjustment* adj = range->adjustment;
4221
4222 const int value = int(adj->value + 0.5);
4223
4224 // save previous position
4225 const double oldPos = m_scrollPos[barIndex];
4226 // update current position
4227 m_scrollPos[barIndex] = adj->value;
4228 // If event should be ignored, or integral position has not changed
4229 if (!m_hasVMT || g_blockEventsOnDrag || value == int(oldPos + 0.5))
4230 {
4231 return wxEVT_NULL;
4232 }
4233
4234 wxEventType eventType = wxEVT_SCROLL_THUMBTRACK;
4235 if (!m_isScrolling)
4236 {
4237 // Difference from last change event
4238 const double diff = adj->value - oldPos;
4239 const bool isDown = diff > 0;
4240
4241 if (IsScrollIncrement(adj->step_increment, diff))
4242 {
4243 eventType = isDown ? wxEVT_SCROLL_LINEDOWN : wxEVT_SCROLL_LINEUP;
4244 }
4245 else if (IsScrollIncrement(adj->page_increment, diff))
4246 {
4247 eventType = isDown ? wxEVT_SCROLL_PAGEDOWN : wxEVT_SCROLL_PAGEUP;
4248 }
4249 else if (m_mouseButtonDown)
4250 {
4251 // Assume track event
4252 m_isScrolling = true;
4253 }
4254 }
4255 return eventType;
4256 }
4257
4258 void wxWindowGTK::ScrollWindow( int dx, int dy, const wxRect* WXUNUSED(rect) )
4259 {
4260 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4261
4262 wxCHECK_RET( m_wxwindow != NULL, wxT("window needs client area for scrolling") );
4263
4264 // No scrolling requested.
4265 if ((dx == 0) && (dy == 0)) return;
4266
4267 m_clipPaintRegion = true;
4268
4269 if (GetLayoutDirection() == wxLayout_RightToLeft)
4270 gtk_pizza_scroll( GTK_PIZZA(m_wxwindow), dx, -dy );
4271 else
4272 gtk_pizza_scroll( GTK_PIZZA(m_wxwindow), -dx, -dy );
4273
4274 m_clipPaintRegion = false;
4275
4276 #if wxUSE_CARET
4277 bool restoreCaret = (GetCaret() != NULL && GetCaret()->IsVisible());
4278 if (restoreCaret)
4279 {
4280 wxRect caretRect(GetCaret()->GetPosition(), GetCaret()->GetSize());
4281 if (dx > 0)
4282 caretRect.width += dx;
4283 else
4284 {
4285 caretRect.x += dx; caretRect.width -= dx;
4286 }
4287 if (dy > 0)
4288 caretRect.height += dy;
4289 else
4290 {
4291 caretRect.y += dy; caretRect.height -= dy;
4292 }
4293
4294 RefreshRect(caretRect);
4295 }
4296 #endif // wxUSE_CARET
4297 }
4298
4299 void wxWindowGTK::GtkScrolledWindowSetBorder(GtkWidget* w, int wxstyle)
4300 {
4301 //RN: Note that static controls usually have no border on gtk, so maybe
4302 //it makes sense to treat that as simply no border at the wx level
4303 //as well...
4304 if (!(wxstyle & wxNO_BORDER) && !(wxstyle & wxBORDER_STATIC))
4305 {
4306 GtkShadowType gtkstyle;
4307
4308 if(wxstyle & wxBORDER_RAISED)
4309 gtkstyle = GTK_SHADOW_OUT;
4310 else if (wxstyle & wxBORDER_SUNKEN)
4311 gtkstyle = GTK_SHADOW_IN;
4312 else if (wxstyle & wxBORDER_DOUBLE)
4313 gtkstyle = GTK_SHADOW_ETCHED_IN;
4314 else //default
4315 gtkstyle = GTK_SHADOW_IN;
4316
4317 gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(w),
4318 gtkstyle );
4319 }
4320 }
4321
4322 void wxWindowGTK::SetWindowStyleFlag( long style )
4323 {
4324 // Updates the internal variable. NB: Now m_windowStyle bits carry the _new_ style values already
4325 wxWindowBase::SetWindowStyleFlag(style);
4326 }
4327
4328 // Find the wxWindow at the current mouse position, also returning the mouse
4329 // position.
4330 wxWindow* wxFindWindowAtPointer(wxPoint& pt)
4331 {
4332 pt = wxGetMousePosition();
4333 wxWindow* found = wxFindWindowAtPoint(pt);
4334 return found;
4335 }
4336
4337 // Get the current mouse position.
4338 wxPoint wxGetMousePosition()
4339 {
4340 /* This crashes when used within wxHelpContext,
4341 so we have to use the X-specific implementation below.
4342 gint x, y;
4343 GdkModifierType *mask;
4344 (void) gdk_window_get_pointer(NULL, &x, &y, mask);
4345
4346 return wxPoint(x, y);
4347 */
4348
4349 int x, y;
4350 GdkWindow* windowAtPtr = gdk_window_at_pointer(& x, & y);
4351
4352 Display *display = windowAtPtr ? GDK_WINDOW_XDISPLAY(windowAtPtr) : GDK_DISPLAY();
4353 Window rootWindow = RootWindowOfScreen (DefaultScreenOfDisplay(display));
4354 Window rootReturn, childReturn;
4355 int rootX, rootY, winX, winY;
4356 unsigned int maskReturn;
4357
4358 XQueryPointer (display,
4359 rootWindow,
4360 &rootReturn,
4361 &childReturn,
4362 &rootX, &rootY, &winX, &winY, &maskReturn);
4363 return wxPoint(rootX, rootY);
4364
4365 }
4366
4367 // Needed for implementing e.g. combobox on wxGTK within a modal dialog.
4368 void wxAddGrab(wxWindow* window)
4369 {
4370 gtk_grab_add( (GtkWidget*) window->GetHandle() );
4371 }
4372
4373 void wxRemoveGrab(wxWindow* window)
4374 {
4375 gtk_grab_remove( (GtkWidget*) window->GetHandle() );
4376 }
wxWidgets (Impactor)