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[wxWidgets.git] / src / gtk / window.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/gtk/window.cpp
3 // Purpose:
4 // Author: Robert Roebling
5 // Id: $Id$
6 // Copyright: (c) 1998 Robert Roebling, Julian Smart
7 // Licence: wxWindows licence
8 /////////////////////////////////////////////////////////////////////////////
9
10 // For compilers that support precompilation, includes "wx.h".
11 #include "wx/wxprec.h"
12
13 #ifdef __VMS
14 #define XWarpPointer XWARPPOINTER
15 #endif
16
17 #include "wx/window.h"
18
19 #ifndef WX_PRECOMP
20 #include "wx/log.h"
21 #include "wx/app.h"
22 #include "wx/toplevel.h"
23 #include "wx/dcclient.h"
24 #include "wx/menu.h"
25 #include "wx/settings.h"
26 #include "wx/msgdlg.h"
27 #include "wx/math.h"
28 #endif
29
30 #include "wx/dnd.h"
31 #include "wx/tooltip.h"
32 #include "wx/caret.h"
33 #include "wx/fontutil.h"
34 #include "wx/sysopt.h"
35
36 #include <ctype.h>
37
38 #include "wx/gtk/private.h"
39 #include "wx/gtk/private/win_gtk.h"
40 #include <gdk/gdkkeysyms.h>
41 #include <gdk/gdkx.h>
42
43 #if !GTK_CHECK_VERSION(2,10,0)
44 // GTK+ can reliably detect Meta key state only since 2.10 when
45 // GDK_META_MASK was introduced -- there wasn't any way to detect it
46 // in older versions. wxGTK used GDK_MOD2_MASK for this purpose, but
47 // GDK_MOD2_MASK is documented as:
48 //
49 // the fifth modifier key (it depends on the modifier mapping of the X
50 // server which key is interpreted as this modifier)
51 //
52 // In other words, it isn't guaranteed to map to Meta. This is a real
53 // problem: it is common to map NumLock to it (in fact, it's an exception
54 // if the X server _doesn't_ use it for NumLock). So the old code caused
55 // wxKeyEvent::MetaDown() to always return true as long as NumLock was on
56 // on many systems, which broke all applications using
57 // wxKeyEvent::GetModifiers() to check modifiers state (see e.g. here:
58 // http://tinyurl.com/56lsk2).
59 //
60 // Because of this, it's better to not detect Meta key state at all than
61 // to detect it incorrectly. Hence the following #define, which causes
62 // m_metaDown to be always set to false.
63 #define GDK_META_MASK 0
64 #endif
65
66 //-----------------------------------------------------------------------------
67 // documentation on internals
68 //-----------------------------------------------------------------------------
69
70 /*
71 I have been asked several times about writing some documentation about
72 the GTK port of wxWidgets, especially its internal structures. Obviously,
73 you cannot understand wxGTK without knowing a little about the GTK, but
74 some more information about what the wxWindow, which is the base class
75 for all other window classes, does seems required as well.
76
77 I)
78
79 What does wxWindow do? It contains the common interface for the following
80 jobs of its descendants:
81
82 1) Define the rudimentary behaviour common to all window classes, such as
83 resizing, intercepting user input (so as to make it possible to use these
84 events for special purposes in a derived class), window names etc.
85
86 2) Provide the possibility to contain and manage children, if the derived
87 class is allowed to contain children, which holds true for those window
88 classes which do not display a native GTK widget. To name them, these
89 classes are wxPanel, wxScrolledWindow, wxDialog, wxFrame. The MDI frame-
90 work classes are a special case and are handled a bit differently from
91 the rest. The same holds true for the wxNotebook class.
92
93 3) Provide the possibility to draw into a client area of a window. This,
94 too, only holds true for classes that do not display a native GTK widget
95 as above.
96
97 4) Provide the entire mechanism for scrolling widgets. This actual inter-
98 face for this is usually in wxScrolledWindow, but the GTK implementation
99 is in this class.
100
101 5) A multitude of helper or extra methods for special purposes, such as
102 Drag'n'Drop, managing validators etc.
103
104 6) Display a border (sunken, raised, simple or none).
105
106 Normally one might expect, that one wxWidgets window would always correspond
107 to one GTK widget. Under GTK, there is no such all-round widget that has all
108 the functionality. Moreover, the GTK defines a client area as a different
109 widget from the actual widget you are handling. Last but not least some
110 special classes (e.g. wxFrame) handle different categories of widgets and
111 still have the possibility to draw something in the client area.
112 It was therefore required to write a special purpose GTK widget, that would
113 represent a client area in the sense of wxWidgets capable to do the jobs
114 2), 3) and 4). I have written this class and it resides in win_gtk.c of
115 this directory.
116
117 All windows must have a widget, with which they interact with other under-
118 lying GTK widgets. It is this widget, e.g. that has to be resized etc and
119 the wxWindow class has a member variable called m_widget which holds a
120 pointer to this widget. When the window class represents a GTK native widget,
121 this is (in most cases) the only GTK widget the class manages. E.g. the
122 wxStaticText class handles only a GtkLabel widget a pointer to which you
123 can find in m_widget (defined in wxWindow)
124
125 When the class has a client area for drawing into and for containing children
126 it has to handle the client area widget (of the type wxPizza, defined in
127 win_gtk.cpp), but there could be any number of widgets, handled by a class.
128 The common rule for all windows is only, that the widget that interacts with
129 the rest of GTK must be referenced in m_widget and all other widgets must be
130 children of this widget on the GTK level. The top-most widget, which also
131 represents the client area, must be in the m_wxwindow field and must be of
132 the type wxPizza.
133
134 As I said, the window classes that display a GTK native widget only have
135 one widget, so in the case of e.g. the wxButton class m_widget holds a
136 pointer to a GtkButton widget. But windows with client areas (for drawing
137 and children) have a m_widget field that is a pointer to a GtkScrolled-
138 Window and a m_wxwindow field that is pointer to a wxPizza and this
139 one is (in the GTK sense) a child of the GtkScrolledWindow.
140
141 If the m_wxwindow field is set, then all input to this widget is inter-
142 cepted and sent to the wxWidgets class. If not, all input to the widget
143 that gets pointed to by m_widget gets intercepted and sent to the class.
144
145 II)
146
147 The design of scrolling in wxWidgets is markedly different from that offered
148 by the GTK itself and therefore we cannot simply take it as it is. In GTK,
149 clicking on a scrollbar belonging to scrolled window will inevitably move
150 the window. In wxWidgets, the scrollbar will only emit an event, send this
151 to (normally) a wxScrolledWindow and that class will call ScrollWindow()
152 which actually moves the window and its sub-windows. Note that wxPizza
153 memorizes how much it has been scrolled but that wxWidgets forgets this
154 so that the two coordinates systems have to be kept in synch. This is done
155 in various places using the pizza->m_scroll_x and pizza->m_scroll_y values.
156
157 III)
158
159 Singularly the most broken code in GTK is the code that is supposed to
160 inform subwindows (child windows) about new positions. Very often, duplicate
161 events are sent without changes in size or position, equally often no
162 events are sent at all (All this is due to a bug in the GtkContainer code
163 which got fixed in GTK 1.2.6). For that reason, wxGTK completely ignores
164 GTK's own system and it simply waits for size events for toplevel windows
165 and then iterates down the respective size events to all window. This has
166 the disadvantage that windows might get size events before the GTK widget
167 actually has the reported size. This doesn't normally pose any problem, but
168 the OpenGL drawing routines rely on correct behaviour. Therefore, I have
169 added the m_nativeSizeEvents flag, which is true only for the OpenGL canvas,
170 i.e. the wxGLCanvas will emit a size event, when (and not before) the X11
171 window that is used for OpenGL output really has that size (as reported by
172 GTK).
173
174 IV)
175
176 If someone at some point of time feels the immense desire to have a look at,
177 change or attempt to optimise the Refresh() logic, this person will need an
178 intimate understanding of what "draw" and "expose" events are and what
179 they are used for, in particular when used in connection with GTK's
180 own windowless widgets. Beware.
181
182 V)
183
184 Cursors, too, have been a constant source of pleasure. The main difficulty
185 is that a GdkWindow inherits a cursor if the programmer sets a new cursor
186 for the parent. To prevent this from doing too much harm, I use idle time
187 to set the cursor over and over again, starting from the toplevel windows
188 and ending with the youngest generation (speaking of parent and child windows).
189 Also don't forget that cursors (like much else) are connected to GdkWindows,
190 not GtkWidgets and that the "window" field of a GtkWidget might very well
191 point to the GdkWindow of the parent widget (-> "window-less widget") and
192 that the two obviously have very different meanings.
193
194 */
195
196 //-----------------------------------------------------------------------------
197 // data
198 //-----------------------------------------------------------------------------
199
200 // Don't allow event propagation during drag
201 bool g_blockEventsOnDrag;
202 // Don't allow mouse event propagation during scroll
203 bool g_blockEventsOnScroll;
204 extern wxCursor g_globalCursor;
205
206 // mouse capture state: the window which has it and if the mouse is currently
207 // inside it
208 static wxWindowGTK *g_captureWindow = NULL;
209 static bool g_captureWindowHasMouse = false;
210
211 // The window that currently has focus:
212 static wxWindowGTK *gs_currentFocus = NULL;
213 // The window that is scheduled to get focus in the next event loop iteration
214 // or NULL if there's no pending focus change:
215 static wxWindowGTK *gs_pendingFocus = NULL;
216
217 // the window that has deferred focus-out event pending, if any (see
218 // GTKAddDeferredFocusOut() for details)
219 static wxWindowGTK *gs_deferredFocusOut = NULL;
220
221 // global variables because GTK+ DnD want to have the
222 // mouse event that caused it
223 GdkEvent *g_lastMouseEvent = NULL;
224 int g_lastButtonNumber = 0;
225
226 //-----------------------------------------------------------------------------
227 // debug
228 //-----------------------------------------------------------------------------
229
230 // the trace mask used for the focus debugging messages
231 #define TRACE_FOCUS _T("focus")
232
233 //-----------------------------------------------------------------------------
234 // missing gdk functions
235 //-----------------------------------------------------------------------------
236
237 void
238 gdk_window_warp_pointer (GdkWindow *window,
239 gint x,
240 gint y)
241 {
242 if (!window)
243 window = gdk_get_default_root_window();
244
245 if (!GDK_WINDOW_DESTROYED(window))
246 {
247 XWarpPointer (GDK_WINDOW_XDISPLAY(window),
248 None, /* not source window -> move from anywhere */
249 GDK_WINDOW_XID(window), /* dest window */
250 0, 0, 0, 0, /* not source window -> move from anywhere */
251 x, y );
252 }
253 }
254
255
256 //-----------------------------------------------------------------------------
257 // "size_request" of m_widget
258 //-----------------------------------------------------------------------------
259
260 // make it extern because wxStaticText needs to disconnect this one
261 extern "C" {
262 void wxgtk_window_size_request_callback(GtkWidget * WXUNUSED(widget),
263 GtkRequisition *requisition,
264 wxWindow * win)
265 {
266 int w, h;
267 win->GetSize( &w, &h );
268 if (w < 2)
269 w = 2;
270 if (h < 2)
271 h = 2;
272
273 requisition->height = h;
274 requisition->width = w;
275 }
276 }
277
278 //-----------------------------------------------------------------------------
279 // "expose_event" of m_wxwindow
280 //-----------------------------------------------------------------------------
281
282 extern "C" {
283 static gboolean
284 gtk_window_expose_callback( GtkWidget* widget,
285 GdkEventExpose *gdk_event,
286 wxWindow *win )
287 {
288 if (gdk_event->window == widget->window)
289 {
290 win->GetUpdateRegion() = wxRegion( gdk_event->region );
291 win->GtkSendPaintEvents();
292 }
293 // Let parent window draw window-less widgets
294 return FALSE;
295 }
296 }
297
298 #ifndef __WXUNIVERSAL__
299 //-----------------------------------------------------------------------------
300 // "expose_event" from m_wxwindow->parent, for drawing border
301 //-----------------------------------------------------------------------------
302
303 extern "C" {
304 static gboolean
305 expose_event_border(GtkWidget* widget, GdkEventExpose* gdk_event, wxWindow* win)
306 {
307 if (gdk_event->window != widget->window)
308 return false;
309
310 const GtkAllocation& alloc = win->m_wxwindow->allocation;
311 const int x = alloc.x;
312 const int y = alloc.y;
313 const int w = alloc.width;
314 const int h = alloc.height;
315
316 if (w <= 0 || h <= 0)
317 return false;
318
319 if (win->HasFlag(wxBORDER_SIMPLE))
320 {
321 gdk_draw_rectangle(gdk_event->window,
322 widget->style->black_gc, false, x, y, w - 1, h - 1);
323 }
324 else
325 {
326 GtkShadowType shadow = GTK_SHADOW_IN;
327 if (win->HasFlag(wxBORDER_RAISED))
328 shadow = GTK_SHADOW_OUT;
329
330 // Style detail to use
331 const char* detail;
332 if (win->m_widget == win->m_wxwindow)
333 // for non-scrollable wxWindows
334 detail = "entry";
335 else
336 // for scrollable ones
337 detail = "viewport";
338
339 gtk_paint_shadow(
340 win->m_wxwindow->style, gdk_event->window, GTK_STATE_NORMAL,
341 shadow, NULL, wxGTKPrivate::GetEntryWidget(), detail, x, y, w, h);
342 }
343 return false;
344 }
345 }
346
347 //-----------------------------------------------------------------------------
348 // "parent_set" from m_wxwindow
349 //-----------------------------------------------------------------------------
350
351 extern "C" {
352 static void
353 parent_set(GtkWidget* widget, GtkObject* old_parent, wxWindow* win)
354 {
355 if (old_parent)
356 {
357 g_signal_handlers_disconnect_by_func(
358 old_parent, (void*)expose_event_border, win);
359 }
360 if (widget->parent)
361 {
362 g_signal_connect_after(widget->parent, "expose_event",
363 G_CALLBACK(expose_event_border), win);
364 }
365 }
366 }
367 #endif // !__WXUNIVERSAL__
368
369 //-----------------------------------------------------------------------------
370 // "key_press_event" from any window
371 //-----------------------------------------------------------------------------
372
373 // These are used when transforming Ctrl-alpha to ascii values 1-26
374 inline bool wxIsLowerChar(int code)
375 {
376 return (code >= 'a' && code <= 'z' );
377 }
378
379 inline bool wxIsUpperChar(int code)
380 {
381 return (code >= 'A' && code <= 'Z' );
382 }
383
384
385 // set WXTRACE to this to see the key event codes on the console
386 #define TRACE_KEYS _T("keyevent")
387
388 // translates an X key symbol to WXK_XXX value
389 //
390 // if isChar is true it means that the value returned will be used for EVT_CHAR
391 // event and then we choose the logical WXK_XXX, i.e. '/' for GDK_KP_Divide,
392 // for example, while if it is false it means that the value is going to be
393 // used for KEY_DOWN/UP events and then we translate GDK_KP_Divide to
394 // WXK_NUMPAD_DIVIDE
395 static long wxTranslateKeySymToWXKey(KeySym keysym, bool isChar)
396 {
397 long key_code;
398
399 switch ( keysym )
400 {
401 // Shift, Control and Alt don't generate the CHAR events at all
402 case GDK_Shift_L:
403 case GDK_Shift_R:
404 key_code = isChar ? 0 : WXK_SHIFT;
405 break;
406 case GDK_Control_L:
407 case GDK_Control_R:
408 key_code = isChar ? 0 : WXK_CONTROL;
409 break;
410 case GDK_Meta_L:
411 case GDK_Meta_R:
412 case GDK_Alt_L:
413 case GDK_Alt_R:
414 case GDK_Super_L:
415 case GDK_Super_R:
416 key_code = isChar ? 0 : WXK_ALT;
417 break;
418
419 // neither do the toggle modifies
420 case GDK_Scroll_Lock:
421 key_code = isChar ? 0 : WXK_SCROLL;
422 break;
423
424 case GDK_Caps_Lock:
425 key_code = isChar ? 0 : WXK_CAPITAL;
426 break;
427
428 case GDK_Num_Lock:
429 key_code = isChar ? 0 : WXK_NUMLOCK;
430 break;
431
432
433 // various other special keys
434 case GDK_Menu:
435 key_code = WXK_MENU;
436 break;
437
438 case GDK_Help:
439 key_code = WXK_HELP;
440 break;
441
442 case GDK_BackSpace:
443 key_code = WXK_BACK;
444 break;
445
446 case GDK_ISO_Left_Tab:
447 case GDK_Tab:
448 key_code = WXK_TAB;
449 break;
450
451 case GDK_Linefeed:
452 case GDK_Return:
453 key_code = WXK_RETURN;
454 break;
455
456 case GDK_Clear:
457 key_code = WXK_CLEAR;
458 break;
459
460 case GDK_Pause:
461 key_code = WXK_PAUSE;
462 break;
463
464 case GDK_Select:
465 key_code = WXK_SELECT;
466 break;
467
468 case GDK_Print:
469 key_code = WXK_PRINT;
470 break;
471
472 case GDK_Execute:
473 key_code = WXK_EXECUTE;
474 break;
475
476 case GDK_Escape:
477 key_code = WXK_ESCAPE;
478 break;
479
480 // cursor and other extended keyboard keys
481 case GDK_Delete:
482 key_code = WXK_DELETE;
483 break;
484
485 case GDK_Home:
486 key_code = WXK_HOME;
487 break;
488
489 case GDK_Left:
490 key_code = WXK_LEFT;
491 break;
492
493 case GDK_Up:
494 key_code = WXK_UP;
495 break;
496
497 case GDK_Right:
498 key_code = WXK_RIGHT;
499 break;
500
501 case GDK_Down:
502 key_code = WXK_DOWN;
503 break;
504
505 case GDK_Prior: // == GDK_Page_Up
506 key_code = WXK_PAGEUP;
507 break;
508
509 case GDK_Next: // == GDK_Page_Down
510 key_code = WXK_PAGEDOWN;
511 break;
512
513 case GDK_End:
514 key_code = WXK_END;
515 break;
516
517 case GDK_Begin:
518 key_code = WXK_HOME;
519 break;
520
521 case GDK_Insert:
522 key_code = WXK_INSERT;
523 break;
524
525
526 // numpad keys
527 case GDK_KP_0:
528 case GDK_KP_1:
529 case GDK_KP_2:
530 case GDK_KP_3:
531 case GDK_KP_4:
532 case GDK_KP_5:
533 case GDK_KP_6:
534 case GDK_KP_7:
535 case GDK_KP_8:
536 case GDK_KP_9:
537 key_code = (isChar ? '0' : int(WXK_NUMPAD0)) + keysym - GDK_KP_0;
538 break;
539
540 case GDK_KP_Space:
541 key_code = isChar ? ' ' : int(WXK_NUMPAD_SPACE);
542 break;
543
544 case GDK_KP_Tab:
545 key_code = isChar ? WXK_TAB : WXK_NUMPAD_TAB;
546 break;
547
548 case GDK_KP_Enter:
549 key_code = isChar ? WXK_RETURN : WXK_NUMPAD_ENTER;
550 break;
551
552 case GDK_KP_F1:
553 key_code = isChar ? WXK_F1 : WXK_NUMPAD_F1;
554 break;
555
556 case GDK_KP_F2:
557 key_code = isChar ? WXK_F2 : WXK_NUMPAD_F2;
558 break;
559
560 case GDK_KP_F3:
561 key_code = isChar ? WXK_F3 : WXK_NUMPAD_F3;
562 break;
563
564 case GDK_KP_F4:
565 key_code = isChar ? WXK_F4 : WXK_NUMPAD_F4;
566 break;
567
568 case GDK_KP_Home:
569 key_code = isChar ? WXK_HOME : WXK_NUMPAD_HOME;
570 break;
571
572 case GDK_KP_Left:
573 key_code = isChar ? WXK_LEFT : WXK_NUMPAD_LEFT;
574 break;
575
576 case GDK_KP_Up:
577 key_code = isChar ? WXK_UP : WXK_NUMPAD_UP;
578 break;
579
580 case GDK_KP_Right:
581 key_code = isChar ? WXK_RIGHT : WXK_NUMPAD_RIGHT;
582 break;
583
584 case GDK_KP_Down:
585 key_code = isChar ? WXK_DOWN : WXK_NUMPAD_DOWN;
586 break;
587
588 case GDK_KP_Prior: // == GDK_KP_Page_Up
589 key_code = isChar ? WXK_PAGEUP : WXK_NUMPAD_PAGEUP;
590 break;
591
592 case GDK_KP_Next: // == GDK_KP_Page_Down
593 key_code = isChar ? WXK_PAGEDOWN : WXK_NUMPAD_PAGEDOWN;
594 break;
595
596 case GDK_KP_End:
597 key_code = isChar ? WXK_END : WXK_NUMPAD_END;
598 break;
599
600 case GDK_KP_Begin:
601 key_code = isChar ? WXK_HOME : WXK_NUMPAD_BEGIN;
602 break;
603
604 case GDK_KP_Insert:
605 key_code = isChar ? WXK_INSERT : WXK_NUMPAD_INSERT;
606 break;
607
608 case GDK_KP_Delete:
609 key_code = isChar ? WXK_DELETE : WXK_NUMPAD_DELETE;
610 break;
611
612 case GDK_KP_Equal:
613 key_code = isChar ? '=' : int(WXK_NUMPAD_EQUAL);
614 break;
615
616 case GDK_KP_Multiply:
617 key_code = isChar ? '*' : int(WXK_NUMPAD_MULTIPLY);
618 break;
619
620 case GDK_KP_Add:
621 key_code = isChar ? '+' : int(WXK_NUMPAD_ADD);
622 break;
623
624 case GDK_KP_Separator:
625 // FIXME: what is this?
626 key_code = isChar ? '.' : int(WXK_NUMPAD_SEPARATOR);
627 break;
628
629 case GDK_KP_Subtract:
630 key_code = isChar ? '-' : int(WXK_NUMPAD_SUBTRACT);
631 break;
632
633 case GDK_KP_Decimal:
634 key_code = isChar ? '.' : int(WXK_NUMPAD_DECIMAL);
635 break;
636
637 case GDK_KP_Divide:
638 key_code = isChar ? '/' : int(WXK_NUMPAD_DIVIDE);
639 break;
640
641
642 // function keys
643 case GDK_F1:
644 case GDK_F2:
645 case GDK_F3:
646 case GDK_F4:
647 case GDK_F5:
648 case GDK_F6:
649 case GDK_F7:
650 case GDK_F8:
651 case GDK_F9:
652 case GDK_F10:
653 case GDK_F11:
654 case GDK_F12:
655 key_code = WXK_F1 + keysym - GDK_F1;
656 break;
657
658 default:
659 key_code = 0;
660 }
661
662 return key_code;
663 }
664
665 static inline bool wxIsAsciiKeysym(KeySym ks)
666 {
667 return ks < 256;
668 }
669
670 static void wxFillOtherKeyEventFields(wxKeyEvent& event,
671 wxWindowGTK *win,
672 GdkEventKey *gdk_event)
673 {
674 int x = 0;
675 int y = 0;
676 GdkModifierType state;
677 if (gdk_event->window)
678 gdk_window_get_pointer(gdk_event->window, &x, &y, &state);
679
680 event.SetTimestamp( gdk_event->time );
681 event.SetId(win->GetId());
682 event.m_shiftDown = (gdk_event->state & GDK_SHIFT_MASK) != 0;
683 event.m_controlDown = (gdk_event->state & GDK_CONTROL_MASK) != 0;
684 event.m_altDown = (gdk_event->state & GDK_MOD1_MASK) != 0;
685 event.m_metaDown = (gdk_event->state & GDK_META_MASK) != 0;
686 event.m_scanCode = gdk_event->keyval;
687 event.m_rawCode = (wxUint32) gdk_event->keyval;
688 event.m_rawFlags = 0;
689 #if wxUSE_UNICODE
690 event.m_uniChar = gdk_keyval_to_unicode(gdk_event->keyval);
691 #endif
692 wxGetMousePosition( &x, &y );
693 win->ScreenToClient( &x, &y );
694 event.m_x = x;
695 event.m_y = y;
696 event.SetEventObject( win );
697 }
698
699
700 static bool
701 wxTranslateGTKKeyEventToWx(wxKeyEvent& event,
702 wxWindowGTK *win,
703 GdkEventKey *gdk_event)
704 {
705 // VZ: it seems that GDK_KEY_RELEASE event doesn't set event->string
706 // but only event->keyval which is quite useless to us, so remember
707 // the last character from GDK_KEY_PRESS and reuse it as last resort
708 //
709 // NB: should be MT-safe as we're always called from the main thread only
710 static struct
711 {
712 KeySym keysym;
713 long keycode;
714 } s_lastKeyPress = { 0, 0 };
715
716 KeySym keysym = gdk_event->keyval;
717
718 wxLogTrace(TRACE_KEYS, _T("Key %s event: keysym = %ld"),
719 event.GetEventType() == wxEVT_KEY_UP ? _T("release")
720 : _T("press"),
721 keysym);
722
723 long key_code = wxTranslateKeySymToWXKey(keysym, false /* !isChar */);
724
725 if ( !key_code )
726 {
727 // do we have the translation or is it a plain ASCII character?
728 if ( (gdk_event->length == 1) || wxIsAsciiKeysym(keysym) )
729 {
730 // we should use keysym if it is ASCII as X does some translations
731 // like "I pressed while Control is down" => "Ctrl-I" == "TAB"
732 // which we don't want here (but which we do use for OnChar())
733 if ( !wxIsAsciiKeysym(keysym) )
734 {
735 keysym = (KeySym)gdk_event->string[0];
736 }
737
738 // we want to always get the same key code when the same key is
739 // pressed regardless of the state of the modifiers, i.e. on a
740 // standard US keyboard pressing '5' or '%' ('5' key with
741 // Shift) should result in the same key code in OnKeyDown():
742 // '5' (although OnChar() will get either '5' or '%').
743 //
744 // to do it we first translate keysym to keycode (== scan code)
745 // and then back but always using the lower register
746 Display *dpy = (Display *)wxGetDisplay();
747 KeyCode keycode = XKeysymToKeycode(dpy, keysym);
748
749 wxLogTrace(TRACE_KEYS, _T("\t-> keycode %d"), keycode);
750
751 KeySym keysymNormalized = XKeycodeToKeysym(dpy, keycode, 0);
752
753 // use the normalized, i.e. lower register, keysym if we've
754 // got one
755 key_code = keysymNormalized ? keysymNormalized : keysym;
756
757 // as explained above, we want to have lower register key codes
758 // normally but for the letter keys we want to have the upper ones
759 //
760 // NB: don't use XConvertCase() here, we want to do it for letters
761 // only
762 key_code = toupper(key_code);
763 }
764 else // non ASCII key, what to do?
765 {
766 // by default, ignore it
767 key_code = 0;
768
769 // but if we have cached information from the last KEY_PRESS
770 if ( gdk_event->type == GDK_KEY_RELEASE )
771 {
772 // then reuse it
773 if ( keysym == s_lastKeyPress.keysym )
774 {
775 key_code = s_lastKeyPress.keycode;
776 }
777 }
778 }
779
780 if ( gdk_event->type == GDK_KEY_PRESS )
781 {
782 // remember it to be reused for KEY_UP event later
783 s_lastKeyPress.keysym = keysym;
784 s_lastKeyPress.keycode = key_code;
785 }
786 }
787
788 wxLogTrace(TRACE_KEYS, _T("\t-> wxKeyCode %ld"), key_code);
789
790 // sending unknown key events doesn't really make sense
791 if ( !key_code )
792 return false;
793
794 // now fill all the other fields
795 wxFillOtherKeyEventFields(event, win, gdk_event);
796
797 event.m_keyCode = key_code;
798 #if wxUSE_UNICODE
799 if ( gdk_event->type == GDK_KEY_PRESS || gdk_event->type == GDK_KEY_RELEASE )
800 {
801 event.m_uniChar = key_code;
802 }
803 #endif
804
805 return true;
806 }
807
808
809 struct wxGtkIMData
810 {
811 GtkIMContext *context;
812 GdkEventKey *lastKeyEvent;
813
814 wxGtkIMData()
815 {
816 context = gtk_im_multicontext_new();
817 lastKeyEvent = NULL;
818 }
819 ~wxGtkIMData()
820 {
821 g_object_unref (context);
822 }
823 };
824
825 extern "C" {
826 static gboolean
827 gtk_window_key_press_callback( GtkWidget *WXUNUSED(widget),
828 GdkEventKey *gdk_event,
829 wxWindow *win )
830 {
831 if (!win->m_hasVMT)
832 return FALSE;
833 if (g_blockEventsOnDrag)
834 return FALSE;
835
836 wxKeyEvent event( wxEVT_KEY_DOWN );
837 bool ret = false;
838 bool return_after_IM = false;
839
840 if( wxTranslateGTKKeyEventToWx(event, win, gdk_event) )
841 {
842 // Emit KEY_DOWN event
843 ret = win->HandleWindowEvent( event );
844 }
845 else
846 {
847 // Return after IM processing as we cannot do
848 // anything with it anyhow.
849 return_after_IM = true;
850 }
851
852 if ((!ret) && (win->m_imData != NULL))
853 {
854 // We should let GTK+ IM filter key event first. According to GTK+ 2.0 API
855 // docs, if IM filter returns true, no further processing should be done.
856 // we should send the key_down event anyway.
857 bool intercepted_by_IM = gtk_im_context_filter_keypress(win->m_imData->context, gdk_event);
858 win->m_imData->lastKeyEvent = NULL;
859 if (intercepted_by_IM)
860 {
861 wxLogTrace(TRACE_KEYS, _T("Key event intercepted by IM"));
862 return TRUE;
863 }
864 }
865
866 if (return_after_IM)
867 return FALSE;
868
869 #if wxUSE_ACCEL
870 if (!ret)
871 {
872 wxWindowGTK *ancestor = win;
873 while (ancestor)
874 {
875 int command = ancestor->GetAcceleratorTable()->GetCommand( event );
876 if (command != -1)
877 {
878 wxCommandEvent menu_event( wxEVT_COMMAND_MENU_SELECTED, command );
879 ret = ancestor->HandleWindowEvent( menu_event );
880
881 if ( !ret )
882 {
883 // if the accelerator wasn't handled as menu event, try
884 // it as button click (for compatibility with other
885 // platforms):
886 wxCommandEvent button_event( wxEVT_COMMAND_BUTTON_CLICKED, command );
887 ret = ancestor->HandleWindowEvent( button_event );
888 }
889
890 break;
891 }
892 if (ancestor->IsTopLevel())
893 break;
894 ancestor = ancestor->GetParent();
895 }
896 }
897 #endif // wxUSE_ACCEL
898
899 // Only send wxEVT_CHAR event if not processed yet. Thus, ALT-x
900 // will only be sent if it is not in an accelerator table.
901 if (!ret)
902 {
903 long key_code;
904 KeySym keysym = gdk_event->keyval;
905 // Find key code for EVT_CHAR and EVT_CHAR_HOOK events
906 key_code = wxTranslateKeySymToWXKey(keysym, true /* isChar */);
907 if ( !key_code )
908 {
909 if ( wxIsAsciiKeysym(keysym) )
910 {
911 // ASCII key
912 key_code = (unsigned char)keysym;
913 }
914 // gdk_event->string is actually deprecated
915 else if ( gdk_event->length == 1 )
916 {
917 key_code = (unsigned char)gdk_event->string[0];
918 }
919 }
920
921 if ( key_code )
922 {
923 wxLogTrace(TRACE_KEYS, _T("Char event: %ld"), key_code);
924
925 event.m_keyCode = key_code;
926
927 // To conform to the docs we need to translate Ctrl-alpha
928 // characters to values in the range 1-26.
929 if ( event.ControlDown() &&
930 ( wxIsLowerChar(key_code) || wxIsUpperChar(key_code) ))
931 {
932 if ( wxIsLowerChar(key_code) )
933 event.m_keyCode = key_code - 'a' + 1;
934 if ( wxIsUpperChar(key_code) )
935 event.m_keyCode = key_code - 'A' + 1;
936 #if wxUSE_UNICODE
937 event.m_uniChar = event.m_keyCode;
938 #endif
939 }
940
941 // Implement OnCharHook by checking ancestor top level windows
942 wxWindow *parent = win;
943 while (parent && !parent->IsTopLevel())
944 parent = parent->GetParent();
945 if (parent)
946 {
947 event.SetEventType( wxEVT_CHAR_HOOK );
948 ret = parent->HandleWindowEvent( event );
949 }
950
951 if (!ret)
952 {
953 event.SetEventType(wxEVT_CHAR);
954 ret = win->HandleWindowEvent( event );
955 }
956 }
957 }
958
959 return ret;
960 }
961 }
962
963 extern "C" {
964 static void
965 gtk_wxwindow_commit_cb (GtkIMContext * WXUNUSED(context),
966 const gchar *str,
967 wxWindow *window)
968 {
969 wxKeyEvent event( wxEVT_KEY_DOWN );
970
971 // take modifiers, cursor position, timestamp etc. from the last
972 // key_press_event that was fed into Input Method:
973 if (window->m_imData->lastKeyEvent)
974 {
975 wxFillOtherKeyEventFields(event,
976 window, window->m_imData->lastKeyEvent);
977 }
978 else
979 {
980 event.SetEventObject( window );
981 }
982
983 const wxString data(wxGTK_CONV_BACK_SYS(str));
984 if( data.empty() )
985 return;
986
987 bool ret = false;
988
989 // Implement OnCharHook by checking ancestor top level windows
990 wxWindow *parent = window;
991 while (parent && !parent->IsTopLevel())
992 parent = parent->GetParent();
993
994 for( wxString::const_iterator pstr = data.begin(); pstr != data.end(); ++pstr )
995 {
996 #if wxUSE_UNICODE
997 event.m_uniChar = *pstr;
998 // Backward compatible for ISO-8859-1
999 event.m_keyCode = *pstr < 256 ? event.m_uniChar : 0;
1000 wxLogTrace(TRACE_KEYS, _T("IM sent character '%c'"), event.m_uniChar);
1001 #else
1002 event.m_keyCode = (char)*pstr;
1003 #endif // wxUSE_UNICODE
1004
1005 // To conform to the docs we need to translate Ctrl-alpha
1006 // characters to values in the range 1-26.
1007 if ( event.ControlDown() &&
1008 ( wxIsLowerChar(*pstr) || wxIsUpperChar(*pstr) ))
1009 {
1010 if ( wxIsLowerChar(*pstr) )
1011 event.m_keyCode = *pstr - 'a' + 1;
1012 if ( wxIsUpperChar(*pstr) )
1013 event.m_keyCode = *pstr - 'A' + 1;
1014
1015 event.m_keyCode = *pstr - 'a' + 1;
1016 #if wxUSE_UNICODE
1017 event.m_uniChar = event.m_keyCode;
1018 #endif
1019 }
1020
1021 if (parent)
1022 {
1023 event.SetEventType( wxEVT_CHAR_HOOK );
1024 ret = parent->HandleWindowEvent( event );
1025 }
1026
1027 if (!ret)
1028 {
1029 event.SetEventType(wxEVT_CHAR);
1030 ret = window->HandleWindowEvent( event );
1031 }
1032 }
1033 }
1034 }
1035
1036
1037 //-----------------------------------------------------------------------------
1038 // "key_release_event" from any window
1039 //-----------------------------------------------------------------------------
1040
1041 extern "C" {
1042 static gboolean
1043 gtk_window_key_release_callback( GtkWidget * WXUNUSED(widget),
1044 GdkEventKey *gdk_event,
1045 wxWindowGTK *win )
1046 {
1047 if (!win->m_hasVMT)
1048 return FALSE;
1049
1050 if (g_blockEventsOnDrag)
1051 return FALSE;
1052
1053 wxKeyEvent event( wxEVT_KEY_UP );
1054 if ( !wxTranslateGTKKeyEventToWx(event, win, gdk_event) )
1055 {
1056 // unknown key pressed, ignore (the event would be useless anyhow)
1057 return FALSE;
1058 }
1059
1060 return win->GTKProcessEvent(event);
1061 }
1062 }
1063
1064 // ============================================================================
1065 // the mouse events
1066 // ============================================================================
1067
1068 // ----------------------------------------------------------------------------
1069 // mouse event processing helpers
1070 // ----------------------------------------------------------------------------
1071
1072 // init wxMouseEvent with the info from GdkEventXXX struct
1073 template<typename T> void InitMouseEvent(wxWindowGTK *win,
1074 wxMouseEvent& event,
1075 T *gdk_event)
1076 {
1077 event.SetTimestamp( gdk_event->time );
1078 event.m_shiftDown = gdk_event->state & GDK_SHIFT_MASK;
1079 event.m_controlDown = gdk_event->state & GDK_CONTROL_MASK;
1080 event.m_altDown = gdk_event->state & GDK_MOD1_MASK;
1081 event.m_metaDown = gdk_event->state & GDK_META_MASK;
1082 event.m_leftDown = gdk_event->state & GDK_BUTTON1_MASK;
1083 event.m_middleDown = gdk_event->state & GDK_BUTTON2_MASK;
1084 event.m_rightDown = gdk_event->state & GDK_BUTTON3_MASK;
1085 event.m_aux1Down = gdk_event->state & GDK_BUTTON4_MASK;
1086 event.m_aux2Down = gdk_event->state & GDK_BUTTON5_MASK;
1087
1088 wxPoint pt = win->GetClientAreaOrigin();
1089 event.m_x = (wxCoord)gdk_event->x - pt.x;
1090 event.m_y = (wxCoord)gdk_event->y - pt.y;
1091
1092 if ((win->m_wxwindow) && (win->GetLayoutDirection() == wxLayout_RightToLeft))
1093 {
1094 // origin in the upper right corner
1095 int window_width = win->m_wxwindow->allocation.width;
1096 event.m_x = window_width - event.m_x;
1097 }
1098
1099 event.SetEventObject( win );
1100 event.SetId( win->GetId() );
1101 event.SetTimestamp( gdk_event->time );
1102 }
1103
1104 static void AdjustEventButtonState(wxMouseEvent& event)
1105 {
1106 // GDK reports the old state of the button for a button press event, but
1107 // for compatibility with MSW and common sense we want m_leftDown be TRUE
1108 // for a LEFT_DOWN event, not FALSE, so we will invert
1109 // left/right/middleDown for the corresponding click events
1110
1111 if ((event.GetEventType() == wxEVT_LEFT_DOWN) ||
1112 (event.GetEventType() == wxEVT_LEFT_DCLICK) ||
1113 (event.GetEventType() == wxEVT_LEFT_UP))
1114 {
1115 event.m_leftDown = !event.m_leftDown;
1116 return;
1117 }
1118
1119 if ((event.GetEventType() == wxEVT_MIDDLE_DOWN) ||
1120 (event.GetEventType() == wxEVT_MIDDLE_DCLICK) ||
1121 (event.GetEventType() == wxEVT_MIDDLE_UP))
1122 {
1123 event.m_middleDown = !event.m_middleDown;
1124 return;
1125 }
1126
1127 if ((event.GetEventType() == wxEVT_RIGHT_DOWN) ||
1128 (event.GetEventType() == wxEVT_RIGHT_DCLICK) ||
1129 (event.GetEventType() == wxEVT_RIGHT_UP))
1130 {
1131 event.m_rightDown = !event.m_rightDown;
1132 return;
1133 }
1134 }
1135
1136 // find the window to send the mouse event too
1137 static
1138 wxWindowGTK *FindWindowForMouseEvent(wxWindowGTK *win, wxCoord& x, wxCoord& y)
1139 {
1140 wxCoord xx = x;
1141 wxCoord yy = y;
1142
1143 if (win->m_wxwindow)
1144 {
1145 wxPizza* pizza = WX_PIZZA(win->m_wxwindow);
1146 xx += pizza->m_scroll_x;
1147 yy += pizza->m_scroll_y;
1148 }
1149
1150 wxWindowList::compatibility_iterator node = win->GetChildren().GetFirst();
1151 while (node)
1152 {
1153 wxWindowGTK *child = node->GetData();
1154
1155 node = node->GetNext();
1156 if (!child->IsShown())
1157 continue;
1158
1159 if (child->IsTransparentForMouse())
1160 {
1161 // wxStaticBox is transparent in the box itself
1162 int xx1 = child->m_x;
1163 int yy1 = child->m_y;
1164 int xx2 = child->m_x + child->m_width;
1165 int yy2 = child->m_y + child->m_height;
1166
1167 // left
1168 if (((xx >= xx1) && (xx <= xx1+10) && (yy >= yy1) && (yy <= yy2)) ||
1169 // right
1170 ((xx >= xx2-10) && (xx <= xx2) && (yy >= yy1) && (yy <= yy2)) ||
1171 // top
1172 ((xx >= xx1) && (xx <= xx2) && (yy >= yy1) && (yy <= yy1+10)) ||
1173 // bottom
1174 ((xx >= xx1) && (xx <= xx2) && (yy >= yy2-1) && (yy <= yy2)))
1175 {
1176 win = child;
1177 x -= child->m_x;
1178 y -= child->m_y;
1179 break;
1180 }
1181
1182 }
1183 else
1184 {
1185 if ((child->m_wxwindow == NULL) &&
1186 (child->m_x <= xx) &&
1187 (child->m_y <= yy) &&
1188 (child->m_x+child->m_width >= xx) &&
1189 (child->m_y+child->m_height >= yy))
1190 {
1191 win = child;
1192 x -= child->m_x;
1193 y -= child->m_y;
1194 break;
1195 }
1196 }
1197 }
1198
1199 return win;
1200 }
1201
1202 // ----------------------------------------------------------------------------
1203 // common event handlers helpers
1204 // ----------------------------------------------------------------------------
1205
1206 bool wxWindowGTK::GTKProcessEvent(wxEvent& event) const
1207 {
1208 // nothing special at this level
1209 return HandleWindowEvent(event);
1210 }
1211
1212 int wxWindowGTK::GTKCallbackCommonPrologue(GdkEventAny *event) const
1213 {
1214 if (!m_hasVMT)
1215 return FALSE;
1216 if (g_blockEventsOnDrag)
1217 return TRUE;
1218 if (g_blockEventsOnScroll)
1219 return TRUE;
1220
1221 if (!GTKIsOwnWindow(event->window))
1222 return FALSE;
1223
1224 return -1;
1225 }
1226
1227 // overloads for all GDK event types we use here: we need to have this as
1228 // GdkEventXXX can't be implicitly cast to GdkEventAny even if it, in fact,
1229 // derives from it in the sense that the structs have the same layout
1230 #define wxDEFINE_COMMON_PROLOGUE_OVERLOAD(T) \
1231 static int wxGtkCallbackCommonPrologue(T *event, wxWindowGTK *win) \
1232 { \
1233 return win->GTKCallbackCommonPrologue((GdkEventAny *)event); \
1234 }
1235
1236 wxDEFINE_COMMON_PROLOGUE_OVERLOAD(GdkEventButton)
1237 wxDEFINE_COMMON_PROLOGUE_OVERLOAD(GdkEventMotion)
1238 wxDEFINE_COMMON_PROLOGUE_OVERLOAD(GdkEventCrossing)
1239
1240 #undef wxDEFINE_COMMON_PROLOGUE_OVERLOAD
1241
1242 #define wxCOMMON_CALLBACK_PROLOGUE(event, win) \
1243 const int rc = wxGtkCallbackCommonPrologue(event, win); \
1244 if ( rc != -1 ) \
1245 return rc
1246
1247 // all event handlers must have C linkage as they're called from GTK+ C code
1248 extern "C"
1249 {
1250
1251 //-----------------------------------------------------------------------------
1252 // "button_press_event"
1253 //-----------------------------------------------------------------------------
1254
1255 static gboolean
1256 gtk_window_button_press_callback( GtkWidget *widget,
1257 GdkEventButton *gdk_event,
1258 wxWindowGTK *win )
1259 {
1260 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1261
1262 g_lastButtonNumber = gdk_event->button;
1263
1264 // GDK sends surplus button down events
1265 // before a double click event. We
1266 // need to filter these out.
1267 if ((gdk_event->type == GDK_BUTTON_PRESS) && (win->m_wxwindow))
1268 {
1269 GdkEvent *peek_event = gdk_event_peek();
1270 if (peek_event)
1271 {
1272 if ((peek_event->type == GDK_2BUTTON_PRESS) ||
1273 (peek_event->type == GDK_3BUTTON_PRESS))
1274 {
1275 gdk_event_free( peek_event );
1276 return TRUE;
1277 }
1278 else
1279 {
1280 gdk_event_free( peek_event );
1281 }
1282 }
1283 }
1284
1285 wxEventType event_type = wxEVT_NULL;
1286
1287 if ( gdk_event->type == GDK_2BUTTON_PRESS &&
1288 gdk_event->button >= 1 && gdk_event->button <= 3 )
1289 {
1290 // Reset GDK internal timestamp variables in order to disable GDK
1291 // triple click events. GDK will then next time believe no button has
1292 // been clicked just before, and send a normal button click event.
1293 GdkDisplay* display = gtk_widget_get_display (widget);
1294 display->button_click_time[1] = 0;
1295 display->button_click_time[0] = 0;
1296 }
1297
1298 if (gdk_event->button == 1)
1299 {
1300 // note that GDK generates triple click events which are not supported
1301 // by wxWidgets but still have to be passed to the app as otherwise
1302 // clicks would simply go missing
1303 switch (gdk_event->type)
1304 {
1305 // we shouldn't get triple clicks at all for GTK2 because we
1306 // suppress them artificially using the code above but we still
1307 // should map them to something for GTK1 and not just ignore them
1308 // as this would lose clicks
1309 case GDK_3BUTTON_PRESS: // we could also map this to DCLICK...
1310 case GDK_BUTTON_PRESS:
1311 event_type = wxEVT_LEFT_DOWN;
1312 break;
1313
1314 case GDK_2BUTTON_PRESS:
1315 event_type = wxEVT_LEFT_DCLICK;
1316 break;
1317
1318 default:
1319 // just to silence gcc warnings
1320 ;
1321 }
1322 }
1323 else if (gdk_event->button == 2)
1324 {
1325 switch (gdk_event->type)
1326 {
1327 case GDK_3BUTTON_PRESS:
1328 case GDK_BUTTON_PRESS:
1329 event_type = wxEVT_MIDDLE_DOWN;
1330 break;
1331
1332 case GDK_2BUTTON_PRESS:
1333 event_type = wxEVT_MIDDLE_DCLICK;
1334 break;
1335
1336 default:
1337 ;
1338 }
1339 }
1340 else if (gdk_event->button == 3)
1341 {
1342 switch (gdk_event->type)
1343 {
1344 case GDK_3BUTTON_PRESS:
1345 case GDK_BUTTON_PRESS:
1346 event_type = wxEVT_RIGHT_DOWN;
1347 break;
1348
1349 case GDK_2BUTTON_PRESS:
1350 event_type = wxEVT_RIGHT_DCLICK;
1351 break;
1352
1353 default:
1354 ;
1355 }
1356 }
1357
1358 if ( event_type == wxEVT_NULL )
1359 {
1360 // unknown mouse button or click type
1361 return FALSE;
1362 }
1363
1364 g_lastMouseEvent = (GdkEvent*) gdk_event;
1365
1366 wxMouseEvent event( event_type );
1367 InitMouseEvent( win, event, gdk_event );
1368
1369 AdjustEventButtonState(event);
1370
1371 // wxListBox actually gets mouse events from the item, so we need to give it
1372 // a chance to correct this
1373 win->FixUpMouseEvent(widget, event.m_x, event.m_y);
1374
1375 // find the correct window to send the event to: it may be a different one
1376 // from the one which got it at GTK+ level because some controls don't have
1377 // their own X window and thus cannot get any events.
1378 if ( !g_captureWindow )
1379 win = FindWindowForMouseEvent(win, event.m_x, event.m_y);
1380
1381 // reset the event object and id in case win changed.
1382 event.SetEventObject( win );
1383 event.SetId( win->GetId() );
1384
1385 bool ret = win->GTKProcessEvent( event );
1386 g_lastMouseEvent = NULL;
1387 if ( ret )
1388 return TRUE;
1389
1390 if ((event_type == wxEVT_LEFT_DOWN) && !win->IsOfStandardClass() &&
1391 (gs_currentFocus != win) /* && win->IsFocusable() */)
1392 {
1393 win->SetFocus();
1394 }
1395
1396 if (event_type == wxEVT_RIGHT_DOWN)
1397 {
1398 // generate a "context menu" event: this is similar to right mouse
1399 // click under many GUIs except that it is generated differently
1400 // (right up under MSW, ctrl-click under Mac, right down here) and
1401 //
1402 // (a) it's a command event and so is propagated to the parent
1403 // (b) under some ports it can be generated from kbd too
1404 // (c) it uses screen coords (because of (a))
1405 wxContextMenuEvent evtCtx(
1406 wxEVT_CONTEXT_MENU,
1407 win->GetId(),
1408 win->ClientToScreen(event.GetPosition()));
1409 evtCtx.SetEventObject(win);
1410 return win->GTKProcessEvent(evtCtx);
1411 }
1412
1413 return FALSE;
1414 }
1415
1416 //-----------------------------------------------------------------------------
1417 // "button_release_event"
1418 //-----------------------------------------------------------------------------
1419
1420 static gboolean
1421 gtk_window_button_release_callback( GtkWidget *widget,
1422 GdkEventButton *gdk_event,
1423 wxWindowGTK *win )
1424 {
1425 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1426
1427 g_lastButtonNumber = 0;
1428
1429 wxEventType event_type = wxEVT_NULL;
1430
1431 switch (gdk_event->button)
1432 {
1433 case 1:
1434 event_type = wxEVT_LEFT_UP;
1435 break;
1436
1437 case 2:
1438 event_type = wxEVT_MIDDLE_UP;
1439 break;
1440
1441 case 3:
1442 event_type = wxEVT_RIGHT_UP;
1443 break;
1444
1445 default:
1446 // unknown button, don't process
1447 return FALSE;
1448 }
1449
1450 g_lastMouseEvent = (GdkEvent*) gdk_event;
1451
1452 wxMouseEvent event( event_type );
1453 InitMouseEvent( win, event, gdk_event );
1454
1455 AdjustEventButtonState(event);
1456
1457 // same wxListBox hack as above
1458 win->FixUpMouseEvent(widget, event.m_x, event.m_y);
1459
1460 if ( !g_captureWindow )
1461 win = FindWindowForMouseEvent(win, event.m_x, event.m_y);
1462
1463 // reset the event object and id in case win changed.
1464 event.SetEventObject( win );
1465 event.SetId( win->GetId() );
1466
1467 bool ret = win->GTKProcessEvent(event);
1468
1469 g_lastMouseEvent = NULL;
1470
1471 return ret;
1472 }
1473
1474 //-----------------------------------------------------------------------------
1475 // "motion_notify_event"
1476 //-----------------------------------------------------------------------------
1477
1478 static gboolean
1479 gtk_window_motion_notify_callback( GtkWidget * WXUNUSED(widget),
1480 GdkEventMotion *gdk_event,
1481 wxWindowGTK *win )
1482 {
1483 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1484
1485 if (gdk_event->is_hint)
1486 {
1487 int x = 0;
1488 int y = 0;
1489 GdkModifierType state;
1490 gdk_window_get_pointer(gdk_event->window, &x, &y, &state);
1491 gdk_event->x = x;
1492 gdk_event->y = y;
1493 }
1494
1495 g_lastMouseEvent = (GdkEvent*) gdk_event;
1496
1497 wxMouseEvent event( wxEVT_MOTION );
1498 InitMouseEvent(win, event, gdk_event);
1499
1500 if ( g_captureWindow )
1501 {
1502 // synthesise a mouse enter or leave event if needed
1503 GdkWindow *winUnderMouse = gdk_window_at_pointer(NULL, NULL);
1504 // This seems to be necessary and actually been added to
1505 // GDK itself in version 2.0.X
1506 gdk_flush();
1507
1508 bool hasMouse = winUnderMouse == gdk_event->window;
1509 if ( hasMouse != g_captureWindowHasMouse )
1510 {
1511 // the mouse changed window
1512 g_captureWindowHasMouse = hasMouse;
1513
1514 wxMouseEvent eventM(g_captureWindowHasMouse ? wxEVT_ENTER_WINDOW
1515 : wxEVT_LEAVE_WINDOW);
1516 InitMouseEvent(win, eventM, gdk_event);
1517 eventM.SetEventObject(win);
1518 win->GTKProcessEvent(eventM);
1519 }
1520 }
1521 else // no capture
1522 {
1523 win = FindWindowForMouseEvent(win, event.m_x, event.m_y);
1524
1525 // reset the event object and id in case win changed.
1526 event.SetEventObject( win );
1527 event.SetId( win->GetId() );
1528 }
1529
1530 if ( !g_captureWindow )
1531 {
1532 wxSetCursorEvent cevent( event.m_x, event.m_y );
1533 if (win->GTKProcessEvent( cevent ))
1534 {
1535 win->SetCursor( cevent.GetCursor() );
1536 }
1537 }
1538
1539 bool ret = win->GTKProcessEvent(event);
1540
1541 g_lastMouseEvent = NULL;
1542
1543 return ret;
1544 }
1545
1546 //-----------------------------------------------------------------------------
1547 // "scroll_event" (mouse wheel event)
1548 //-----------------------------------------------------------------------------
1549
1550 static gboolean
1551 window_scroll_event_hscrollbar(GtkWidget*, GdkEventScroll* gdk_event, wxWindow* win)
1552 {
1553 if (gdk_event->direction != GDK_SCROLL_LEFT &&
1554 gdk_event->direction != GDK_SCROLL_RIGHT)
1555 {
1556 return false;
1557 }
1558
1559 wxMouseEvent event(wxEVT_MOUSEWHEEL);
1560 InitMouseEvent(win, event, gdk_event);
1561
1562 GtkRange *range = win->m_scrollBar[wxWindow::ScrollDir_Horz];
1563 if (!range) return FALSE;
1564
1565 if (range && GTK_WIDGET_VISIBLE (range))
1566 {
1567 GtkAdjustment *adj = range->adjustment;
1568 gdouble delta = adj->step_increment * 3;
1569 if (gdk_event->direction == GDK_SCROLL_LEFT)
1570 delta = -delta;
1571
1572 gdouble new_value = CLAMP (adj->value + delta, adj->lower, adj->upper - adj->page_size);
1573
1574 gtk_adjustment_set_value (adj, new_value);
1575
1576 return TRUE;
1577 }
1578
1579 return FALSE;
1580 }
1581
1582 static gboolean
1583 window_scroll_event(GtkWidget*, GdkEventScroll* gdk_event, wxWindow* win)
1584 {
1585 if (gdk_event->direction != GDK_SCROLL_UP &&
1586 gdk_event->direction != GDK_SCROLL_DOWN)
1587 {
1588 return false;
1589 }
1590
1591 wxMouseEvent event(wxEVT_MOUSEWHEEL);
1592 InitMouseEvent(win, event, gdk_event);
1593
1594 // FIXME: Get these values from GTK or GDK
1595 event.m_linesPerAction = 3;
1596 event.m_wheelDelta = 120;
1597 if (gdk_event->direction == GDK_SCROLL_UP)
1598 event.m_wheelRotation = 120;
1599 else
1600 event.m_wheelRotation = -120;
1601
1602 if (win->GTKProcessEvent(event))
1603 return TRUE;
1604
1605 GtkRange *range = win->m_scrollBar[wxWindow::ScrollDir_Vert];
1606 if (!range) return FALSE;
1607
1608 if (range && GTK_WIDGET_VISIBLE (range))
1609 {
1610 GtkAdjustment *adj = range->adjustment;
1611 gdouble delta = adj->step_increment * 3;
1612 if (gdk_event->direction == GDK_SCROLL_UP)
1613 delta = -delta;
1614
1615 gdouble new_value = CLAMP (adj->value + delta, adj->lower, adj->upper - adj->page_size);
1616
1617 gtk_adjustment_set_value (adj, new_value);
1618
1619 return TRUE;
1620 }
1621
1622 return FALSE;
1623 }
1624
1625 //-----------------------------------------------------------------------------
1626 // "popup-menu"
1627 //-----------------------------------------------------------------------------
1628
1629 static gboolean wxgtk_window_popup_menu_callback(GtkWidget*, wxWindowGTK* win)
1630 {
1631 wxContextMenuEvent event(wxEVT_CONTEXT_MENU, win->GetId(), wxPoint(-1, -1));
1632 event.SetEventObject(win);
1633 return win->GTKProcessEvent(event);
1634 }
1635
1636 //-----------------------------------------------------------------------------
1637 // "focus_in_event"
1638 //-----------------------------------------------------------------------------
1639
1640 static gboolean
1641 gtk_window_focus_in_callback( GtkWidget * WXUNUSED(widget),
1642 GdkEventFocus *WXUNUSED(event),
1643 wxWindowGTK *win )
1644 {
1645 return win->GTKHandleFocusIn();
1646 }
1647
1648 //-----------------------------------------------------------------------------
1649 // "focus_out_event"
1650 //-----------------------------------------------------------------------------
1651
1652 static gboolean
1653 gtk_window_focus_out_callback( GtkWidget * WXUNUSED(widget),
1654 GdkEventFocus * WXUNUSED(gdk_event),
1655 wxWindowGTK *win )
1656 {
1657 return win->GTKHandleFocusOut();
1658 }
1659
1660 //-----------------------------------------------------------------------------
1661 // "focus"
1662 //-----------------------------------------------------------------------------
1663
1664 static gboolean
1665 wx_window_focus_callback(GtkWidget *widget,
1666 GtkDirectionType WXUNUSED(direction),
1667 wxWindowGTK *win)
1668 {
1669 // the default handler for focus signal in GtkScrolledWindow sets
1670 // focus to the window itself even if it doesn't accept focus, i.e. has no
1671 // GTK_CAN_FOCUS in its style -- work around this by forcibly preventing
1672 // the signal from reaching gtk_scrolled_window_focus() if we don't have
1673 // any children which might accept focus (we know we don't accept the focus
1674 // ourselves as this signal is only connected in this case)
1675 if ( win->GetChildren().empty() )
1676 g_signal_stop_emission_by_name(widget, "focus");
1677
1678 // we didn't change the focus
1679 return FALSE;
1680 }
1681
1682 //-----------------------------------------------------------------------------
1683 // "enter_notify_event"
1684 //-----------------------------------------------------------------------------
1685
1686 static gboolean
1687 gtk_window_enter_callback( GtkWidget *widget,
1688 GdkEventCrossing *gdk_event,
1689 wxWindowGTK *win )
1690 {
1691 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1692
1693 // Event was emitted after a grab
1694 if (gdk_event->mode != GDK_CROSSING_NORMAL) return FALSE;
1695
1696 int x = 0;
1697 int y = 0;
1698 GdkModifierType state = (GdkModifierType)0;
1699
1700 gdk_window_get_pointer( widget->window, &x, &y, &state );
1701
1702 wxMouseEvent event( wxEVT_ENTER_WINDOW );
1703 InitMouseEvent(win, event, gdk_event);
1704 wxPoint pt = win->GetClientAreaOrigin();
1705 event.m_x = x + pt.x;
1706 event.m_y = y + pt.y;
1707
1708 if ( !g_captureWindow )
1709 {
1710 wxSetCursorEvent cevent( event.m_x, event.m_y );
1711 if (win->GTKProcessEvent( cevent ))
1712 {
1713 win->SetCursor( cevent.GetCursor() );
1714 }
1715 }
1716
1717 return win->GTKProcessEvent(event);
1718 }
1719
1720 //-----------------------------------------------------------------------------
1721 // "leave_notify_event"
1722 //-----------------------------------------------------------------------------
1723
1724 static gboolean
1725 gtk_window_leave_callback( GtkWidget *widget,
1726 GdkEventCrossing *gdk_event,
1727 wxWindowGTK *win )
1728 {
1729 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1730
1731 // Event was emitted after an ungrab
1732 if (gdk_event->mode != GDK_CROSSING_NORMAL) return FALSE;
1733
1734 wxMouseEvent event( wxEVT_LEAVE_WINDOW );
1735
1736 int x = 0;
1737 int y = 0;
1738 GdkModifierType state = (GdkModifierType)0;
1739
1740 gdk_window_get_pointer( widget->window, &x, &y, &state );
1741
1742 InitMouseEvent(win, event, gdk_event);
1743
1744 return win->GTKProcessEvent(event);
1745 }
1746
1747 //-----------------------------------------------------------------------------
1748 // "value_changed" from scrollbar
1749 //-----------------------------------------------------------------------------
1750
1751 static void
1752 gtk_scrollbar_value_changed(GtkRange* range, wxWindow* win)
1753 {
1754 wxEventType eventType = win->GetScrollEventType(range);
1755 if (eventType != wxEVT_NULL)
1756 {
1757 // Convert scroll event type to scrollwin event type
1758 eventType += wxEVT_SCROLLWIN_TOP - wxEVT_SCROLL_TOP;
1759
1760 // find the scrollbar which generated the event
1761 wxWindowGTK::ScrollDir dir = win->ScrollDirFromRange(range);
1762
1763 // generate the corresponding wx event
1764 const int orient = wxWindow::OrientFromScrollDir(dir);
1765 wxScrollWinEvent event(eventType, win->GetScrollPos(orient), orient);
1766 event.SetEventObject(win);
1767
1768 win->GTKProcessEvent(event);
1769 }
1770 }
1771
1772 //-----------------------------------------------------------------------------
1773 // "button_press_event" from scrollbar
1774 //-----------------------------------------------------------------------------
1775
1776 static gboolean
1777 gtk_scrollbar_button_press_event(GtkRange*, GdkEventButton*, wxWindow* win)
1778 {
1779 g_blockEventsOnScroll = true;
1780 win->m_mouseButtonDown = true;
1781
1782 return false;
1783 }
1784
1785 //-----------------------------------------------------------------------------
1786 // "event_after" from scrollbar
1787 //-----------------------------------------------------------------------------
1788
1789 static void
1790 gtk_scrollbar_event_after(GtkRange* range, GdkEvent* event, wxWindow* win)
1791 {
1792 if (event->type == GDK_BUTTON_RELEASE)
1793 {
1794 g_signal_handlers_block_by_func(range, (void*)gtk_scrollbar_event_after, win);
1795
1796 const int orient = wxWindow::OrientFromScrollDir(
1797 win->ScrollDirFromRange(range));
1798 wxScrollWinEvent evt(wxEVT_SCROLLWIN_THUMBRELEASE,
1799 win->GetScrollPos(orient), orient);
1800 evt.SetEventObject(win);
1801 win->GTKProcessEvent(evt);
1802 }
1803 }
1804
1805 //-----------------------------------------------------------------------------
1806 // "button_release_event" from scrollbar
1807 //-----------------------------------------------------------------------------
1808
1809 static gboolean
1810 gtk_scrollbar_button_release_event(GtkRange* range, GdkEventButton*, wxWindow* win)
1811 {
1812 g_blockEventsOnScroll = false;
1813 win->m_mouseButtonDown = false;
1814 // If thumb tracking
1815 if (win->m_isScrolling)
1816 {
1817 win->m_isScrolling = false;
1818 // Hook up handler to send thumb release event after this emission is finished.
1819 // To allow setting scroll position from event handler, sending event must
1820 // be deferred until after the GtkRange handler for this signal has run
1821 g_signal_handlers_unblock_by_func(range, (void*)gtk_scrollbar_event_after, win);
1822 }
1823
1824 return false;
1825 }
1826
1827 //-----------------------------------------------------------------------------
1828 // "realize" from m_widget
1829 //-----------------------------------------------------------------------------
1830
1831 static void
1832 gtk_window_realized_callback(GtkWidget* widget, wxWindow* win)
1833 {
1834 if (win->m_imData)
1835 {
1836 gtk_im_context_set_client_window( win->m_imData->context,
1837 widget->window);
1838 }
1839
1840 // We cannot set colours and fonts before the widget
1841 // been realized, so we do this directly after realization
1842 // or otherwise in idle time
1843
1844 if (win->m_needsStyleChange)
1845 {
1846 win->SetBackgroundStyle(win->GetBackgroundStyle());
1847 win->m_needsStyleChange = false;
1848 }
1849
1850 wxWindowCreateEvent event( win );
1851 event.SetEventObject( win );
1852 win->GTKProcessEvent( event );
1853 }
1854
1855 //-----------------------------------------------------------------------------
1856 // "size_allocate" from m_wxwindow or m_widget
1857 //-----------------------------------------------------------------------------
1858
1859 static void
1860 size_allocate(GtkWidget*, GtkAllocation* alloc, wxWindow* win)
1861 {
1862 int w = alloc->width;
1863 int h = alloc->height;
1864 if (win->m_wxwindow)
1865 {
1866 int border_x, border_y;
1867 WX_PIZZA(win->m_wxwindow)->get_border_widths(border_x, border_y);
1868 w -= 2 * border_x;
1869 h -= 2 * border_y;
1870 if (w < 0) w = 0;
1871 if (h < 0) h = 0;
1872 }
1873 if (win->m_oldClientWidth != w || win->m_oldClientHeight != h)
1874 {
1875 win->m_oldClientWidth = w;
1876 win->m_oldClientHeight = h;
1877 // this callback can be connected to m_wxwindow,
1878 // so always get size from m_widget->allocation
1879 win->m_width = win->m_widget->allocation.width;
1880 win->m_height = win->m_widget->allocation.height;
1881 if (!win->m_nativeSizeEvent)
1882 {
1883 wxSizeEvent event(win->GetSize(), win->GetId());
1884 event.SetEventObject(win);
1885 win->GTKProcessEvent(event);
1886 }
1887 }
1888 }
1889
1890 //-----------------------------------------------------------------------------
1891 // "grab_broken"
1892 //-----------------------------------------------------------------------------
1893
1894 #if GTK_CHECK_VERSION(2, 8, 0)
1895 static gboolean
1896 gtk_window_grab_broken( GtkWidget*,
1897 GdkEventGrabBroken *event,
1898 wxWindow *win )
1899 {
1900 // Mouse capture has been lost involuntarily, notify the application
1901 if(!event->keyboard && wxWindow::GetCapture() == win)
1902 {
1903 wxMouseCaptureLostEvent evt( win->GetId() );
1904 evt.SetEventObject( win );
1905 win->HandleWindowEvent( evt );
1906 }
1907 return false;
1908 }
1909 #endif
1910
1911 //-----------------------------------------------------------------------------
1912 // "style_set"
1913 //-----------------------------------------------------------------------------
1914
1915 static
1916 void gtk_window_style_set_callback( GtkWidget *WXUNUSED(widget),
1917 GtkStyle *previous_style,
1918 wxWindow* win )
1919 {
1920 if (win && previous_style)
1921 {
1922 wxSysColourChangedEvent event;
1923 event.SetEventObject(win);
1924
1925 win->GTKProcessEvent( event );
1926 }
1927 }
1928
1929 } // extern "C"
1930
1931 // Helper to suspend colour change event event processing while we change a widget's style
1932 class wxSuspendStyleEvents
1933 {
1934 public:
1935 wxSuspendStyleEvents(wxWindow* win)
1936 {
1937 m_win = NULL;
1938 if (win->m_wxwindow && win->IsTopLevel())
1939 {
1940 m_win = win;
1941 g_signal_handlers_block_by_func(
1942 m_win->m_wxwindow, (void*)gtk_window_style_set_callback, m_win);
1943 }
1944 }
1945 ~wxSuspendStyleEvents()
1946 {
1947 if (m_win)
1948 g_signal_handlers_unblock_by_func(
1949 m_win->m_wxwindow, (void*)gtk_window_style_set_callback, m_win);
1950 }
1951
1952 wxWindow* m_win;
1953 };
1954
1955 // ----------------------------------------------------------------------------
1956 // this wxWindowBase function is implemented here (in platform-specific file)
1957 // because it is static and so couldn't be made virtual
1958 // ----------------------------------------------------------------------------
1959
1960 wxWindow *wxWindowBase::DoFindFocus()
1961 {
1962 wxWindowGTK *focus = gs_pendingFocus ? gs_pendingFocus : gs_currentFocus;
1963 // the cast is necessary when we compile in wxUniversal mode
1964 return static_cast<wxWindow*>(focus);
1965 }
1966
1967 void wxWindowGTK::AddChildGTK(wxWindowGTK* child)
1968 {
1969 /* the window might have been scrolled already, do we
1970 have to adapt the position */
1971 wxPizza* pizza = WX_PIZZA(m_wxwindow);
1972 child->m_x += pizza->m_scroll_x;
1973 child->m_y += pizza->m_scroll_y;
1974
1975 gtk_widget_set_size_request(
1976 child->m_widget, child->m_width, child->m_height);
1977 gtk_fixed_put(
1978 GTK_FIXED(m_wxwindow), child->m_widget, child->m_x, child->m_y);
1979 }
1980
1981 //-----------------------------------------------------------------------------
1982 // global functions
1983 //-----------------------------------------------------------------------------
1984
1985 wxWindow *wxGetActiveWindow()
1986 {
1987 return wxWindow::FindFocus();
1988 }
1989
1990
1991 wxMouseState wxGetMouseState()
1992 {
1993 wxMouseState ms;
1994
1995 gint x;
1996 gint y;
1997 GdkModifierType mask;
1998
1999 gdk_window_get_pointer(NULL, &x, &y, &mask);
2000
2001 ms.SetX(x);
2002 ms.SetY(y);
2003 ms.SetLeftDown(mask & GDK_BUTTON1_MASK);
2004 ms.SetMiddleDown(mask & GDK_BUTTON2_MASK);
2005 ms.SetRightDown(mask & GDK_BUTTON3_MASK);
2006 ms.SetAux1Down(mask & GDK_BUTTON4_MASK);
2007 ms.SetAux2Down(mask & GDK_BUTTON5_MASK);
2008
2009 ms.SetControlDown(mask & GDK_CONTROL_MASK);
2010 ms.SetShiftDown(mask & GDK_SHIFT_MASK);
2011 ms.SetAltDown(mask & GDK_MOD1_MASK);
2012 ms.SetMetaDown(mask & GDK_META_MASK);
2013
2014 return ms;
2015 }
2016
2017 //-----------------------------------------------------------------------------
2018 // wxWindowGTK
2019 //-----------------------------------------------------------------------------
2020
2021 // in wxUniv/MSW this class is abstract because it doesn't have DoPopupMenu()
2022 // method
2023 #ifdef __WXUNIVERSAL__
2024 IMPLEMENT_ABSTRACT_CLASS(wxWindowGTK, wxWindowBase)
2025 #else // __WXGTK__
2026 IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxWindowBase)
2027 #endif // __WXUNIVERSAL__/__WXGTK__
2028
2029 void wxWindowGTK::Init()
2030 {
2031 // GTK specific
2032 m_widget = NULL;
2033 m_wxwindow = NULL;
2034 m_focusWidget = NULL;
2035
2036 // position/size
2037 m_x = 0;
2038 m_y = 0;
2039 m_width = 0;
2040 m_height = 0;
2041
2042 m_hasVMT = false;
2043
2044 m_showOnIdle = false;
2045
2046 m_noExpose = false;
2047 m_nativeSizeEvent = false;
2048
2049 m_isScrolling = false;
2050 m_mouseButtonDown = false;
2051
2052 // initialize scrolling stuff
2053 for ( int dir = 0; dir < ScrollDir_Max; dir++ )
2054 {
2055 m_scrollBar[dir] = NULL;
2056 m_scrollPos[dir] = 0;
2057 }
2058
2059 m_oldClientWidth =
2060 m_oldClientHeight = 0;
2061
2062 m_clipPaintRegion = false;
2063
2064 m_needsStyleChange = false;
2065
2066 m_cursor = *wxSTANDARD_CURSOR;
2067
2068 m_imData = NULL;
2069 m_dirtyTabOrder = false;
2070 }
2071
2072 wxWindowGTK::wxWindowGTK()
2073 {
2074 Init();
2075 }
2076
2077 wxWindowGTK::wxWindowGTK( wxWindow *parent,
2078 wxWindowID id,
2079 const wxPoint &pos,
2080 const wxSize &size,
2081 long style,
2082 const wxString &name )
2083 {
2084 Init();
2085
2086 Create( parent, id, pos, size, style, name );
2087 }
2088
2089 bool wxWindowGTK::Create( wxWindow *parent,
2090 wxWindowID id,
2091 const wxPoint &pos,
2092 const wxSize &size,
2093 long style,
2094 const wxString &name )
2095 {
2096 // Get default border
2097 wxBorder border = GetBorder(style);
2098 style &= ~wxBORDER_MASK;
2099 style |= border;
2100
2101 if (!PreCreation( parent, pos, size ) ||
2102 !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
2103 {
2104 wxFAIL_MSG( wxT("wxWindowGTK creation failed") );
2105 return false;
2106 }
2107
2108
2109 m_wxwindow = wxPizza::New(m_windowStyle);
2110 #ifndef __WXUNIVERSAL__
2111 if (HasFlag(wxPizza::BORDER_STYLES))
2112 {
2113 g_signal_connect(m_wxwindow, "parent_set",
2114 G_CALLBACK(parent_set), this);
2115 }
2116 #endif
2117 if (!HasFlag(wxHSCROLL) && !HasFlag(wxVSCROLL))
2118 m_widget = m_wxwindow;
2119 else
2120 {
2121 m_widget = gtk_scrolled_window_new( NULL, NULL );
2122
2123 GtkScrolledWindow *scrolledWindow = GTK_SCROLLED_WINDOW(m_widget);
2124
2125 GtkScrolledWindowClass *scroll_class = GTK_SCROLLED_WINDOW_CLASS( GTK_OBJECT_GET_CLASS(m_widget) );
2126 scroll_class->scrollbar_spacing = 0;
2127
2128 // There is a conflict with default bindings at GTK+
2129 // level between scrolled windows and notebooks both of which want to use
2130 // Ctrl-PageUp/Down: scrolled windows for scrolling in the horizontal
2131 // direction and notebooks for changing pages -- we decide that if we don't
2132 // have wxHSCROLL style we can safely sacrifice horizontal scrolling if it
2133 // means we can get working keyboard navigation in notebooks
2134 if ( !HasFlag(wxHSCROLL) )
2135 {
2136 GtkBindingSet *
2137 bindings = gtk_binding_set_by_class(G_OBJECT_GET_CLASS(m_widget));
2138 if ( bindings )
2139 {
2140 gtk_binding_entry_remove(bindings, GDK_Page_Up, GDK_CONTROL_MASK);
2141 gtk_binding_entry_remove(bindings, GDK_Page_Down, GDK_CONTROL_MASK);
2142 }
2143 }
2144
2145 if (HasFlag(wxALWAYS_SHOW_SB))
2146 {
2147 gtk_scrolled_window_set_policy( scrolledWindow, GTK_POLICY_ALWAYS, GTK_POLICY_ALWAYS );
2148
2149 scrolledWindow->hscrollbar_visible = TRUE;
2150 scrolledWindow->vscrollbar_visible = TRUE;
2151 }
2152 else
2153 {
2154 gtk_scrolled_window_set_policy( scrolledWindow, GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
2155 }
2156
2157 m_scrollBar[ScrollDir_Horz] = GTK_RANGE(scrolledWindow->hscrollbar);
2158 m_scrollBar[ScrollDir_Vert] = GTK_RANGE(scrolledWindow->vscrollbar);
2159 if (GetLayoutDirection() == wxLayout_RightToLeft)
2160 gtk_range_set_inverted( m_scrollBar[ScrollDir_Horz], TRUE );
2161
2162 gtk_container_add( GTK_CONTAINER(m_widget), m_wxwindow );
2163
2164 // connect various scroll-related events
2165 for ( int dir = 0; dir < ScrollDir_Max; dir++ )
2166 {
2167 // these handlers block mouse events to any window during scrolling
2168 // such as motion events and prevent GTK and wxWidgets from fighting
2169 // over where the slider should be
2170 g_signal_connect(m_scrollBar[dir], "button_press_event",
2171 G_CALLBACK(gtk_scrollbar_button_press_event), this);
2172 g_signal_connect(m_scrollBar[dir], "button_release_event",
2173 G_CALLBACK(gtk_scrollbar_button_release_event), this);
2174
2175 gulong handler_id = g_signal_connect(m_scrollBar[dir], "event_after",
2176 G_CALLBACK(gtk_scrollbar_event_after), this);
2177 g_signal_handler_block(m_scrollBar[dir], handler_id);
2178
2179 // these handlers get notified when scrollbar slider moves
2180 g_signal_connect_after(m_scrollBar[dir], "value_changed",
2181 G_CALLBACK(gtk_scrollbar_value_changed), this);
2182 }
2183
2184 gtk_widget_show( m_wxwindow );
2185 }
2186 g_object_ref(m_widget);
2187
2188 if (m_parent)
2189 m_parent->DoAddChild( this );
2190
2191 m_focusWidget = m_wxwindow;
2192
2193 SetCanFocus(AcceptsFocus());
2194
2195 PostCreation();
2196
2197 return true;
2198 }
2199
2200 wxWindowGTK::~wxWindowGTK()
2201 {
2202 SendDestroyEvent();
2203
2204 if (gs_currentFocus == this)
2205 gs_currentFocus = NULL;
2206 if (gs_pendingFocus == this)
2207 gs_pendingFocus = NULL;
2208
2209 if ( gs_deferredFocusOut == this )
2210 gs_deferredFocusOut = NULL;
2211
2212 m_hasVMT = false;
2213
2214 // destroy children before destroying this window itself
2215 DestroyChildren();
2216
2217 // unhook focus handlers to prevent stray events being
2218 // propagated to this (soon to be) dead object
2219 if (m_focusWidget != NULL)
2220 {
2221 g_signal_handlers_disconnect_by_func (m_focusWidget,
2222 (gpointer) gtk_window_focus_in_callback,
2223 this);
2224 g_signal_handlers_disconnect_by_func (m_focusWidget,
2225 (gpointer) gtk_window_focus_out_callback,
2226 this);
2227 }
2228
2229 if (m_widget)
2230 Show( false );
2231
2232 // delete before the widgets to avoid a crash on solaris
2233 delete m_imData;
2234
2235 if (m_widget)
2236 {
2237 // Note that gtk_widget_destroy() does not destroy the widget, it just
2238 // emits the "destroy" signal. The widget is not actually destroyed
2239 // until its reference count drops to zero.
2240 gtk_widget_destroy(m_widget);
2241 // Release our reference, should be the last one
2242 g_object_unref(m_widget);
2243 m_widget = NULL;
2244 }
2245 m_wxwindow = NULL;
2246 }
2247
2248 bool wxWindowGTK::PreCreation( wxWindowGTK *parent, const wxPoint &pos, const wxSize &size )
2249 {
2250 if ( GTKNeedsParent() )
2251 {
2252 wxCHECK_MSG( parent, false, wxT("Must have non-NULL parent") );
2253 }
2254
2255 // Use either the given size, or the default if -1 is given.
2256 // See wxWindowBase for these functions.
2257 m_width = WidthDefault(size.x) ;
2258 m_height = HeightDefault(size.y);
2259
2260 m_x = (int)pos.x;
2261 m_y = (int)pos.y;
2262
2263 return true;
2264 }
2265
2266 void wxWindowGTK::PostCreation()
2267 {
2268 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
2269
2270 if (m_wxwindow)
2271 {
2272 if (!m_noExpose)
2273 {
2274 // these get reported to wxWidgets -> wxPaintEvent
2275
2276 g_signal_connect (m_wxwindow, "expose_event",
2277 G_CALLBACK (gtk_window_expose_callback), this);
2278
2279 if (GetLayoutDirection() == wxLayout_LeftToRight)
2280 gtk_widget_set_redraw_on_allocate(m_wxwindow, HasFlag(wxFULL_REPAINT_ON_RESIZE));
2281 }
2282
2283 // Create input method handler
2284 m_imData = new wxGtkIMData;
2285
2286 // Cannot handle drawing preedited text yet
2287 gtk_im_context_set_use_preedit( m_imData->context, FALSE );
2288
2289 g_signal_connect (m_imData->context, "commit",
2290 G_CALLBACK (gtk_wxwindow_commit_cb), this);
2291 }
2292
2293 // focus handling
2294
2295 if (!GTK_IS_WINDOW(m_widget))
2296 {
2297 if (m_focusWidget == NULL)
2298 m_focusWidget = m_widget;
2299
2300 if (m_wxwindow)
2301 {
2302 g_signal_connect (m_focusWidget, "focus_in_event",
2303 G_CALLBACK (gtk_window_focus_in_callback), this);
2304 g_signal_connect (m_focusWidget, "focus_out_event",
2305 G_CALLBACK (gtk_window_focus_out_callback), this);
2306 }
2307 else
2308 {
2309 g_signal_connect_after (m_focusWidget, "focus_in_event",
2310 G_CALLBACK (gtk_window_focus_in_callback), this);
2311 g_signal_connect_after (m_focusWidget, "focus_out_event",
2312 G_CALLBACK (gtk_window_focus_out_callback), this);
2313 }
2314 }
2315
2316 if ( !AcceptsFocusFromKeyboard() )
2317 {
2318 SetCanFocus(false);
2319
2320 g_signal_connect(m_widget, "focus",
2321 G_CALLBACK(wx_window_focus_callback), this);
2322 }
2323
2324 // connect to the various key and mouse handlers
2325
2326 GtkWidget *connect_widget = GetConnectWidget();
2327
2328 ConnectWidget( connect_widget );
2329
2330 /* We cannot set colours, fonts and cursors before the widget has
2331 been realized, so we do this directly after realization */
2332 g_signal_connect (connect_widget, "realize",
2333 G_CALLBACK (gtk_window_realized_callback), this);
2334
2335 if (!IsTopLevel())
2336 {
2337 g_signal_connect(m_wxwindow ? m_wxwindow : m_widget, "size_allocate",
2338 G_CALLBACK(size_allocate), this);
2339 }
2340
2341 if (m_wxwindow)
2342 {
2343 #if GTK_CHECK_VERSION(2, 8, 0)
2344 if (!gtk_check_version(2,8,0))
2345 {
2346 // Make sure we can notify the app when mouse capture is lost
2347 g_signal_connect (m_wxwindow, "grab_broken_event",
2348 G_CALLBACK (gtk_window_grab_broken), this);
2349 }
2350 #endif
2351 }
2352
2353 if ( connect_widget != m_wxwindow )
2354 {
2355 #if GTK_CHECK_VERSION(2, 8, 0)
2356 if (!gtk_check_version(2,8,0))
2357 {
2358 // Make sure we can notify app code when mouse capture is lost
2359 g_signal_connect (connect_widget, "grab_broken_event",
2360 G_CALLBACK (gtk_window_grab_broken), this);
2361 }
2362 #endif
2363 }
2364
2365 #ifdef GTK_IS_FILE_CHOOSER_BUTTON
2366 if (!gtk_check_version(2,6,0) && GTK_IS_FILE_CHOOSER_BUTTON(m_widget))
2367 {
2368 // If we connect to the "size_request" signal of a GtkFileChooserButton
2369 // then that control won't be sized properly when placed inside sizers
2370 // (this can be tested removing this elseif and running XRC or WIDGETS samples)
2371 // FIXME: what should be done here ?
2372 } else
2373 #endif
2374 if ( !IsTopLevel() ) // top level windows use their own callback
2375 {
2376 // This is needed if we want to add our windows into native
2377 // GTK controls, such as the toolbar. With this callback, the
2378 // toolbar gets to know the correct size (the one set by the
2379 // programmer). Sadly, it misbehaves for wxComboBox.
2380 g_signal_connect (m_widget, "size_request",
2381 G_CALLBACK (wxgtk_window_size_request_callback),
2382 this);
2383 }
2384
2385 InheritAttributes();
2386
2387 m_hasVMT = true;
2388
2389 SetLayoutDirection(wxLayout_Default);
2390
2391 // unless the window was created initially hidden (i.e. Hide() had been
2392 // called before Create()), we should show it at GTK+ level as well
2393 if ( IsShown() )
2394 gtk_widget_show( m_widget );
2395 }
2396
2397 void wxWindowGTK::ConnectWidget( GtkWidget *widget )
2398 {
2399 g_signal_connect (widget, "key_press_event",
2400 G_CALLBACK (gtk_window_key_press_callback), this);
2401 g_signal_connect (widget, "key_release_event",
2402 G_CALLBACK (gtk_window_key_release_callback), this);
2403 g_signal_connect (widget, "button_press_event",
2404 G_CALLBACK (gtk_window_button_press_callback), this);
2405 g_signal_connect (widget, "button_release_event",
2406 G_CALLBACK (gtk_window_button_release_callback), this);
2407 g_signal_connect (widget, "motion_notify_event",
2408 G_CALLBACK (gtk_window_motion_notify_callback), this);
2409
2410 g_signal_connect (widget, "scroll_event",
2411 G_CALLBACK (window_scroll_event), this);
2412 if (m_scrollBar[ScrollDir_Horz])
2413 g_signal_connect (m_scrollBar[ScrollDir_Horz], "scroll_event",
2414 G_CALLBACK (window_scroll_event_hscrollbar), this);
2415 if (m_scrollBar[ScrollDir_Vert])
2416 g_signal_connect (m_scrollBar[ScrollDir_Vert], "scroll_event",
2417 G_CALLBACK (window_scroll_event), this);
2418
2419 g_signal_connect (widget, "popup_menu",
2420 G_CALLBACK (wxgtk_window_popup_menu_callback), this);
2421 g_signal_connect (widget, "enter_notify_event",
2422 G_CALLBACK (gtk_window_enter_callback), this);
2423 g_signal_connect (widget, "leave_notify_event",
2424 G_CALLBACK (gtk_window_leave_callback), this);
2425
2426 if (IsTopLevel() && m_wxwindow)
2427 g_signal_connect (m_wxwindow, "style_set",
2428 G_CALLBACK (gtk_window_style_set_callback), this);
2429 }
2430
2431 bool wxWindowGTK::Destroy()
2432 {
2433 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
2434
2435 m_hasVMT = false;
2436
2437 return wxWindowBase::Destroy();
2438 }
2439
2440 void wxWindowGTK::DoMoveWindow(int x, int y, int width, int height)
2441 {
2442 gtk_widget_set_size_request(m_widget, width, height);
2443 // inform the parent to perform the move
2444 WX_PIZZA(m_parent->m_wxwindow)->move(m_widget, x, y);
2445 }
2446
2447 void wxWindowGTK::ConstrainSize()
2448 {
2449 #ifdef __WXGPE__
2450 // GPE's window manager doesn't like size hints at all, esp. when the user
2451 // has to use the virtual keyboard, so don't constrain size there
2452 if (!IsTopLevel())
2453 #endif
2454 {
2455 const wxSize minSize = GetMinSize();
2456 const wxSize maxSize = GetMaxSize();
2457 if (minSize.x > 0 && m_width < minSize.x) m_width = minSize.x;
2458 if (minSize.y > 0 && m_height < minSize.y) m_height = minSize.y;
2459 if (maxSize.x > 0 && m_width > maxSize.x) m_width = maxSize.x;
2460 if (maxSize.y > 0 && m_height > maxSize.y) m_height = maxSize.y;
2461 }
2462 }
2463
2464 void wxWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags )
2465 {
2466 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
2467 wxASSERT_MSG( (m_parent != NULL), wxT("wxWindowGTK::SetSize requires parent.\n") );
2468
2469 int currentX, currentY;
2470 GetPosition(&currentX, &currentY);
2471 if (x == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2472 x = currentX;
2473 if (y == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2474 y = currentY;
2475 AdjustForParentClientOrigin(x, y, sizeFlags);
2476
2477 // calculate the best size if we should auto size the window
2478 if ( ((sizeFlags & wxSIZE_AUTO_WIDTH) && width == -1) ||
2479 ((sizeFlags & wxSIZE_AUTO_HEIGHT) && height == -1) )
2480 {
2481 const wxSize sizeBest = GetBestSize();
2482 if ( (sizeFlags & wxSIZE_AUTO_WIDTH) && width == -1 )
2483 width = sizeBest.x;
2484 if ( (sizeFlags & wxSIZE_AUTO_HEIGHT) && height == -1 )
2485 height = sizeBest.y;
2486 }
2487
2488 const wxSize oldSize(m_width, m_height);
2489 if (width != -1)
2490 m_width = width;
2491 if (height != -1)
2492 m_height = height;
2493
2494 if (m_parent->m_wxwindow)
2495 {
2496 wxPizza* pizza = WX_PIZZA(m_parent->m_wxwindow);
2497 m_x = x + pizza->m_scroll_x;
2498 m_y = y + pizza->m_scroll_y;
2499
2500 int left_border = 0;
2501 int right_border = 0;
2502 int top_border = 0;
2503 int bottom_border = 0;
2504
2505 /* the default button has a border around it */
2506 if (GTK_WIDGET_CAN_DEFAULT(m_widget))
2507 {
2508 GtkBorder *default_border = NULL;
2509 gtk_widget_style_get( m_widget, "default_border", &default_border, NULL );
2510 if (default_border)
2511 {
2512 left_border += default_border->left;
2513 right_border += default_border->right;
2514 top_border += default_border->top;
2515 bottom_border += default_border->bottom;
2516 gtk_border_free( default_border );
2517 }
2518 }
2519
2520 DoMoveWindow( m_x - left_border,
2521 m_y - top_border,
2522 m_width+left_border+right_border,
2523 m_height+top_border+bottom_border );
2524 }
2525
2526 if (m_width != oldSize.x || m_height != oldSize.y)
2527 {
2528 // update these variables to keep size_allocate handler
2529 // from sending another size event for this change
2530 GetClientSize( &m_oldClientWidth, &m_oldClientHeight );
2531
2532 gtk_widget_queue_resize(m_widget);
2533 if (!m_nativeSizeEvent)
2534 {
2535 wxSizeEvent event( wxSize(m_width,m_height), GetId() );
2536 event.SetEventObject( this );
2537 HandleWindowEvent( event );
2538 }
2539 }
2540 }
2541
2542 bool wxWindowGTK::GtkShowFromOnIdle()
2543 {
2544 if (IsShown() && m_showOnIdle && !GTK_WIDGET_VISIBLE (m_widget))
2545 {
2546 GtkAllocation alloc;
2547 alloc.x = m_x;
2548 alloc.y = m_y;
2549 alloc.width = m_width;
2550 alloc.height = m_height;
2551 gtk_widget_size_allocate( m_widget, &alloc );
2552 gtk_widget_show( m_widget );
2553 wxShowEvent eventShow(GetId(), true);
2554 eventShow.SetEventObject(this);
2555 HandleWindowEvent(eventShow);
2556 m_showOnIdle = false;
2557 return true;
2558 }
2559
2560 return false;
2561 }
2562
2563 void wxWindowGTK::OnInternalIdle()
2564 {
2565 if ( gs_deferredFocusOut )
2566 GTKHandleDeferredFocusOut();
2567
2568 // Check if we have to show window now
2569 if (GtkShowFromOnIdle()) return;
2570
2571 if ( m_dirtyTabOrder )
2572 {
2573 m_dirtyTabOrder = false;
2574 RealizeTabOrder();
2575 }
2576
2577 // Update style if the window was not yet realized
2578 // and SetBackgroundStyle(wxBG_STYLE_CUSTOM) was called
2579 if (m_needsStyleChange)
2580 {
2581 SetBackgroundStyle(GetBackgroundStyle());
2582 m_needsStyleChange = false;
2583 }
2584
2585 wxCursor cursor = m_cursor;
2586 if (g_globalCursor.Ok()) cursor = g_globalCursor;
2587
2588 if (cursor.Ok())
2589 {
2590 /* I now set the cursor anew in every OnInternalIdle call
2591 as setting the cursor in a parent window also effects the
2592 windows above so that checking for the current cursor is
2593 not possible. */
2594
2595 if (m_wxwindow && (m_wxwindow != m_widget))
2596 {
2597 GdkWindow *window = m_wxwindow->window;
2598 if (window)
2599 gdk_window_set_cursor( window, cursor.GetCursor() );
2600
2601 if (!g_globalCursor.Ok())
2602 cursor = *wxSTANDARD_CURSOR;
2603
2604 window = m_widget->window;
2605 if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
2606 gdk_window_set_cursor( window, cursor.GetCursor() );
2607
2608 }
2609 else if ( m_widget )
2610 {
2611 GdkWindow *window = m_widget->window;
2612 if ( window && !GTK_WIDGET_NO_WINDOW(m_widget) )
2613 gdk_window_set_cursor( window, cursor.GetCursor() );
2614 }
2615 }
2616
2617 if (wxUpdateUIEvent::CanUpdate(this) && IsShownOnScreen())
2618 UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
2619 }
2620
2621 void wxWindowGTK::DoGetSize( int *width, int *height ) const
2622 {
2623 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2624
2625 if (width) (*width) = m_width;
2626 if (height) (*height) = m_height;
2627 }
2628
2629 void wxWindowGTK::DoSetClientSize( int width, int height )
2630 {
2631 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2632
2633 const wxSize size = GetSize();
2634 const wxSize clientSize = GetClientSize();
2635 SetSize(width + (size.x - clientSize.x), height + (size.y - clientSize.y));
2636 }
2637
2638 void wxWindowGTK::DoGetClientSize( int *width, int *height ) const
2639 {
2640 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2641
2642 int w = m_width;
2643 int h = m_height;
2644
2645 if ( m_wxwindow )
2646 {
2647 // if window is scrollable, account for scrollbars
2648 if ( GTK_IS_SCROLLED_WINDOW(m_widget) )
2649 {
2650 GtkPolicyType policy[ScrollDir_Max];
2651 gtk_scrolled_window_get_policy(GTK_SCROLLED_WINDOW(m_widget),
2652 &policy[ScrollDir_Horz],
2653 &policy[ScrollDir_Vert]);
2654
2655 for ( int i = 0; i < ScrollDir_Max; i++ )
2656 {
2657 // don't account for the scrollbars we don't have
2658 GtkRange * const range = m_scrollBar[i];
2659 if ( !range )
2660 continue;
2661
2662 // nor for the ones we have but don't current show
2663 switch ( policy[i] )
2664 {
2665 case GTK_POLICY_NEVER:
2666 // never shown so doesn't take any place
2667 continue;
2668
2669 case GTK_POLICY_ALWAYS:
2670 // no checks necessary
2671 break;
2672
2673 case GTK_POLICY_AUTOMATIC:
2674 // may be shown or not, check
2675 GtkAdjustment *adj = gtk_range_get_adjustment(range);
2676 if ( adj->upper <= adj->page_size )
2677 continue;
2678 }
2679
2680 GtkRequisition req;
2681 gtk_widget_size_request(GTK_WIDGET(range), &req);
2682 if (i == ScrollDir_Horz)
2683 h -= req.height;
2684 else
2685 w -= req.width;
2686 }
2687 }
2688
2689 int border_x, border_y;
2690 WX_PIZZA(m_wxwindow)->get_border_widths(border_x, border_y);
2691 w -= 2 * border_x;
2692 h -= 2 * border_y;
2693
2694 if (w < 0)
2695 w = 0;
2696 if (h < 0)
2697 h = 0;
2698 }
2699
2700 if (width) *width = w;
2701 if (height) *height = h;
2702 }
2703
2704 void wxWindowGTK::DoGetPosition( int *x, int *y ) const
2705 {
2706 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2707
2708 int dx = 0;
2709 int dy = 0;
2710 if (!IsTopLevel() && m_parent && m_parent->m_wxwindow)
2711 {
2712 wxPizza* pizza = WX_PIZZA(m_parent->m_wxwindow);
2713 dx = pizza->m_scroll_x;
2714 dy = pizza->m_scroll_y;
2715 }
2716
2717 if (m_x == -1 && m_y == -1)
2718 {
2719 GdkWindow *source = NULL;
2720 if (m_wxwindow)
2721 source = m_wxwindow->window;
2722 else
2723 source = m_widget->window;
2724
2725 if (source)
2726 {
2727 int org_x = 0;
2728 int org_y = 0;
2729 gdk_window_get_origin( source, &org_x, &org_y );
2730
2731 if (m_parent)
2732 m_parent->ScreenToClient(&org_x, &org_y);
2733
2734 const_cast<wxWindowGTK*>(this)->m_x = org_x;
2735 const_cast<wxWindowGTK*>(this)->m_y = org_y;
2736 }
2737 }
2738
2739 if (x) (*x) = m_x - dx;
2740 if (y) (*y) = m_y - dy;
2741 }
2742
2743 void wxWindowGTK::DoClientToScreen( int *x, int *y ) const
2744 {
2745 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2746
2747 if (!m_widget->window) return;
2748
2749 GdkWindow *source = NULL;
2750 if (m_wxwindow)
2751 source = m_wxwindow->window;
2752 else
2753 source = m_widget->window;
2754
2755 int org_x = 0;
2756 int org_y = 0;
2757 gdk_window_get_origin( source, &org_x, &org_y );
2758
2759 if (!m_wxwindow)
2760 {
2761 if (GTK_WIDGET_NO_WINDOW (m_widget))
2762 {
2763 org_x += m_widget->allocation.x;
2764 org_y += m_widget->allocation.y;
2765 }
2766 }
2767
2768
2769 if (x)
2770 {
2771 if (GetLayoutDirection() == wxLayout_RightToLeft)
2772 *x = (GetClientSize().x - *x) + org_x;
2773 else
2774 *x += org_x;
2775 }
2776
2777 if (y) *y += org_y;
2778 }
2779
2780 void wxWindowGTK::DoScreenToClient( int *x, int *y ) const
2781 {
2782 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2783
2784 if (!m_widget->window) return;
2785
2786 GdkWindow *source = NULL;
2787 if (m_wxwindow)
2788 source = m_wxwindow->window;
2789 else
2790 source = m_widget->window;
2791
2792 int org_x = 0;
2793 int org_y = 0;
2794 gdk_window_get_origin( source, &org_x, &org_y );
2795
2796 if (!m_wxwindow)
2797 {
2798 if (GTK_WIDGET_NO_WINDOW (m_widget))
2799 {
2800 org_x += m_widget->allocation.x;
2801 org_y += m_widget->allocation.y;
2802 }
2803 }
2804
2805 if (x)
2806 {
2807 if (GetLayoutDirection() == wxLayout_RightToLeft)
2808 *x = (GetClientSize().x - *x) - org_x;
2809 else
2810 *x -= org_x;
2811 }
2812 if (y) *y -= org_y;
2813 }
2814
2815 bool wxWindowGTK::Show( bool show )
2816 {
2817 wxCHECK_MSG( (m_widget != NULL), false, wxT("invalid window") );
2818
2819 if (!wxWindowBase::Show(show))
2820 {
2821 // nothing to do
2822 return false;
2823 }
2824
2825 if (show && m_showOnIdle)
2826 {
2827 // deferred
2828 }
2829 else
2830 {
2831 if (show)
2832 gtk_widget_show(m_widget);
2833 else
2834 gtk_widget_hide(m_widget);
2835 wxShowEvent eventShow(GetId(), show);
2836 eventShow.SetEventObject(this);
2837 HandleWindowEvent(eventShow);
2838 }
2839
2840 return true;
2841 }
2842
2843 void wxWindowGTK::DoEnable( bool enable )
2844 {
2845 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2846
2847 gtk_widget_set_sensitive( m_widget, enable );
2848 if (m_wxwindow && (m_wxwindow != m_widget))
2849 gtk_widget_set_sensitive( m_wxwindow, enable );
2850 }
2851
2852 int wxWindowGTK::GetCharHeight() const
2853 {
2854 wxCHECK_MSG( (m_widget != NULL), 12, wxT("invalid window") );
2855
2856 wxFont font = GetFont();
2857 wxCHECK_MSG( font.Ok(), 12, wxT("invalid font") );
2858
2859 PangoContext* context = gtk_widget_get_pango_context(m_widget);
2860
2861 if (!context)
2862 return 0;
2863
2864 PangoFontDescription *desc = font.GetNativeFontInfo()->description;
2865 PangoLayout *layout = pango_layout_new(context);
2866 pango_layout_set_font_description(layout, desc);
2867 pango_layout_set_text(layout, "H", 1);
2868 PangoLayoutLine *line = (PangoLayoutLine *)pango_layout_get_lines(layout)->data;
2869
2870 PangoRectangle rect;
2871 pango_layout_line_get_extents(line, NULL, &rect);
2872
2873 g_object_unref (layout);
2874
2875 return (int) PANGO_PIXELS(rect.height);
2876 }
2877
2878 int wxWindowGTK::GetCharWidth() const
2879 {
2880 wxCHECK_MSG( (m_widget != NULL), 8, wxT("invalid window") );
2881
2882 wxFont font = GetFont();
2883 wxCHECK_MSG( font.Ok(), 8, wxT("invalid font") );
2884
2885 PangoContext* context = gtk_widget_get_pango_context(m_widget);
2886
2887 if (!context)
2888 return 0;
2889
2890 PangoFontDescription *desc = font.GetNativeFontInfo()->description;
2891 PangoLayout *layout = pango_layout_new(context);
2892 pango_layout_set_font_description(layout, desc);
2893 pango_layout_set_text(layout, "g", 1);
2894 PangoLayoutLine *line = (PangoLayoutLine *)pango_layout_get_lines(layout)->data;
2895
2896 PangoRectangle rect;
2897 pango_layout_line_get_extents(line, NULL, &rect);
2898
2899 g_object_unref (layout);
2900
2901 return (int) PANGO_PIXELS(rect.width);
2902 }
2903
2904 void wxWindowGTK::GetTextExtent( const wxString& string,
2905 int *x,
2906 int *y,
2907 int *descent,
2908 int *externalLeading,
2909 const wxFont *theFont ) const
2910 {
2911 wxFont fontToUse = theFont ? *theFont : GetFont();
2912
2913 wxCHECK_RET( fontToUse.Ok(), wxT("invalid font") );
2914
2915 if (string.empty())
2916 {
2917 if (x) (*x) = 0;
2918 if (y) (*y) = 0;
2919 return;
2920 }
2921
2922 PangoContext *context = NULL;
2923 if (m_widget)
2924 context = gtk_widget_get_pango_context( m_widget );
2925
2926 if (!context)
2927 {
2928 if (x) (*x) = 0;
2929 if (y) (*y) = 0;
2930 return;
2931 }
2932
2933 PangoFontDescription *desc = fontToUse.GetNativeFontInfo()->description;
2934 PangoLayout *layout = pango_layout_new(context);
2935 pango_layout_set_font_description(layout, desc);
2936 {
2937 const wxCharBuffer data = wxGTK_CONV( string );
2938 if ( data )
2939 pango_layout_set_text(layout, data, strlen(data));
2940 }
2941
2942 PangoRectangle rect;
2943 pango_layout_get_extents(layout, NULL, &rect);
2944
2945 if (x) (*x) = (wxCoord) PANGO_PIXELS(rect.width);
2946 if (y) (*y) = (wxCoord) PANGO_PIXELS(rect.height);
2947 if (descent)
2948 {
2949 PangoLayoutIter *iter = pango_layout_get_iter(layout);
2950 int baseline = pango_layout_iter_get_baseline(iter);
2951 pango_layout_iter_free(iter);
2952 *descent = *y - PANGO_PIXELS(baseline);
2953 }
2954 if (externalLeading) (*externalLeading) = 0; // ??
2955
2956 g_object_unref (layout);
2957 }
2958
2959 void wxWindowGTK::GTKDisableFocusOutEvent()
2960 {
2961 g_signal_handlers_block_by_func( m_focusWidget,
2962 (gpointer) gtk_window_focus_out_callback, this);
2963 }
2964
2965 void wxWindowGTK::GTKEnableFocusOutEvent()
2966 {
2967 g_signal_handlers_unblock_by_func( m_focusWidget,
2968 (gpointer) gtk_window_focus_out_callback, this);
2969 }
2970
2971 bool wxWindowGTK::GTKHandleFocusIn()
2972 {
2973 // Disable default focus handling for custom windows since the default GTK+
2974 // handler issues a repaint
2975 const bool retval = m_wxwindow ? true : false;
2976
2977
2978 // NB: if there's still unprocessed deferred focus-out event (see
2979 // GTKHandleFocusOut() for explanation), we need to process it first so
2980 // that the order of focus events -- focus-out first, then focus-in
2981 // elsewhere -- is preserved
2982 if ( gs_deferredFocusOut )
2983 {
2984 if ( GTKNeedsToFilterSameWindowFocus() &&
2985 gs_deferredFocusOut == this )
2986 {
2987 // GTK+ focus changed from this wxWindow back to itself, so don't
2988 // emit any events at all
2989 wxLogTrace(TRACE_FOCUS,
2990 "filtered out spurious focus change within %s(%p, %s)",
2991 GetClassInfo()->GetClassName(), this, GetLabel());
2992 gs_deferredFocusOut = NULL;
2993 return retval;
2994 }
2995
2996 // otherwise we need to send focus-out first
2997 wxASSERT_MSG ( gs_deferredFocusOut != this,
2998 "GTKHandleFocusIn(GTKFocus_Normal) called even though focus changed back to itself - derived class should handle this" );
2999 GTKHandleDeferredFocusOut();
3000 }
3001
3002
3003 wxLogTrace(TRACE_FOCUS,
3004 "handling focus_in event for %s(%p, %s)",
3005 GetClassInfo()->GetClassName(), this, GetLabel());
3006
3007 if (m_imData)
3008 gtk_im_context_focus_in(m_imData->context);
3009
3010 gs_currentFocus = this;
3011 gs_pendingFocus = NULL;
3012
3013 #if wxUSE_CARET
3014 // caret needs to be informed about focus change
3015 wxCaret *caret = GetCaret();
3016 if ( caret )
3017 {
3018 caret->OnSetFocus();
3019 }
3020 #endif // wxUSE_CARET
3021
3022 // Notify the parent keeping track of focus for the kbd navigation
3023 // purposes that we got it.
3024 wxChildFocusEvent eventChildFocus(static_cast<wxWindow*>(this));
3025 GTKProcessEvent(eventChildFocus);
3026
3027 wxFocusEvent eventFocus(wxEVT_SET_FOCUS, GetId());
3028 eventFocus.SetEventObject(this);
3029 GTKProcessEvent(eventFocus);
3030
3031 return retval;
3032 }
3033
3034 bool wxWindowGTK::GTKHandleFocusOut()
3035 {
3036 // Disable default focus handling for custom windows since the default GTK+
3037 // handler issues a repaint
3038 const bool retval = m_wxwindow ? true : false;
3039
3040
3041 // NB: If a control is composed of several GtkWidgets and when focus
3042 // changes from one of them to another within the same wxWindow, we get
3043 // a focus-out event followed by focus-in for another GtkWidget owned
3044 // by the same wx control. We don't want to generate two spurious
3045 // wxEVT_SET_FOCUS events in this case, so we defer sending wx events
3046 // from GTKHandleFocusOut() until we know for sure it's not coming back
3047 // (i.e. in GTKHandleFocusIn() or at idle time).
3048 if ( GTKNeedsToFilterSameWindowFocus() )
3049 {
3050 wxASSERT_MSG( gs_deferredFocusOut == NULL,
3051 "deferred focus out event already pending" );
3052 wxLogTrace(TRACE_FOCUS,
3053 "deferring focus_out event for %s(%p, %s)",
3054 GetClassInfo()->GetClassName(), this, GetLabel());
3055 gs_deferredFocusOut = this;
3056 return retval;
3057 }
3058
3059 GTKHandleFocusOutNoDeferring();
3060
3061 return retval;
3062 }
3063
3064 void wxWindowGTK::GTKHandleFocusOutNoDeferring()
3065 {
3066 wxLogTrace(TRACE_FOCUS,
3067 "handling focus_out event for %s(%p, %s)",
3068 GetClassInfo()->GetClassName(), this, GetLabel());
3069
3070 if (m_imData)
3071 gtk_im_context_focus_out(m_imData->context);
3072
3073 if ( gs_currentFocus != this )
3074 {
3075 // Something is terribly wrong, gs_currentFocus is out of sync with the
3076 // real focus. We will reset it to NULL anyway, because after this
3077 // focus-out event is handled, one of the following with happen:
3078 //
3079 // * either focus will go out of the app altogether, in which case
3080 // gs_currentFocus _should_ be NULL
3081 //
3082 // * or it goes to another control, in which case focus-in event will
3083 // follow immediately and it will set gs_currentFocus to the right
3084 // value
3085 wxLogDebug("window %s(%p, %s) lost focus even though it didn't have it",
3086 GetClassInfo()->GetClassName(), this, GetLabel());
3087 }
3088 gs_currentFocus = NULL;
3089
3090 #if wxUSE_CARET
3091 // caret needs to be informed about focus change
3092 wxCaret *caret = GetCaret();
3093 if ( caret )
3094 {
3095 caret->OnKillFocus();
3096 }
3097 #endif // wxUSE_CARET
3098
3099 wxFocusEvent event( wxEVT_KILL_FOCUS, GetId() );
3100 event.SetEventObject( this );
3101 GTKProcessEvent( event );
3102 }
3103
3104 /*static*/
3105 void wxWindowGTK::GTKHandleDeferredFocusOut()
3106 {
3107 // NB: See GTKHandleFocusOut() for explanation. This function is called
3108 // from either GTKHandleFocusIn() or OnInternalIdle() to process
3109 // deferred event.
3110 if ( gs_deferredFocusOut )
3111 {
3112 wxWindowGTK *win = gs_deferredFocusOut;
3113 gs_deferredFocusOut = NULL;
3114
3115 wxLogTrace(TRACE_FOCUS,
3116 "processing deferred focus_out event for %s(%p, %s)",
3117 win->GetClassInfo()->GetClassName(), win, win->GetLabel());
3118
3119 win->GTKHandleFocusOutNoDeferring();
3120 }
3121 }
3122
3123 void wxWindowGTK::SetFocus()
3124 {
3125 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
3126
3127 // Setting "physical" focus is not immediate in GTK+ and while
3128 // gtk_widget_is_focus ("determines if the widget is the focus widget
3129 // within its toplevel", i.e. returns true for one widget per TLW, not
3130 // globally) returns true immediately after grabbing focus,
3131 // GTK_WIDGET_HAS_FOCUS (which returns true only for the one widget that
3132 // has focus at the moment) takes affect only after the window is shown
3133 // (if it was hidden at the moment of the call) or at the next event loop
3134 // iteration.
3135 //
3136 // Because we want to FindFocus() call immediately following
3137 // foo->SetFocus() to return foo, we have to keep track of "pending" focus
3138 // ourselves.
3139 gs_pendingFocus = this;
3140
3141 GtkWidget *widget = m_wxwindow ? m_wxwindow : m_focusWidget;
3142
3143 if ( GTK_IS_CONTAINER(widget) &&
3144 !GTK_WIDGET_CAN_FOCUS(widget) )
3145 {
3146 wxLogTrace(TRACE_FOCUS,
3147 _T("Setting focus to a child of %s(%p, %s)"),
3148 GetClassInfo()->GetClassName(), this, GetLabel().c_str());
3149 gtk_widget_child_focus(widget, GTK_DIR_TAB_FORWARD);
3150 }
3151 else
3152 {
3153 wxLogTrace(TRACE_FOCUS,
3154 _T("Setting focus to %s(%p, %s)"),
3155 GetClassInfo()->GetClassName(), this, GetLabel().c_str());
3156 gtk_widget_grab_focus(widget);
3157 }
3158 }
3159
3160 void wxWindowGTK::SetCanFocus(bool canFocus)
3161 {
3162 if ( canFocus )
3163 GTK_WIDGET_SET_FLAGS(m_widget, GTK_CAN_FOCUS);
3164 else
3165 GTK_WIDGET_UNSET_FLAGS(m_widget, GTK_CAN_FOCUS);
3166
3167 if ( m_wxwindow && (m_widget != m_wxwindow) )
3168 {
3169 if ( canFocus )
3170 GTK_WIDGET_SET_FLAGS(m_wxwindow, GTK_CAN_FOCUS);
3171 else
3172 GTK_WIDGET_UNSET_FLAGS(m_wxwindow, GTK_CAN_FOCUS);
3173 }
3174 }
3175
3176 bool wxWindowGTK::Reparent( wxWindowBase *newParentBase )
3177 {
3178 wxCHECK_MSG( (m_widget != NULL), false, wxT("invalid window") );
3179
3180 wxWindowGTK *oldParent = m_parent,
3181 *newParent = (wxWindowGTK *)newParentBase;
3182
3183 wxASSERT( GTK_IS_WIDGET(m_widget) );
3184
3185 if ( !wxWindowBase::Reparent(newParent) )
3186 return false;
3187
3188 wxASSERT( GTK_IS_WIDGET(m_widget) );
3189
3190 if (oldParent)
3191 gtk_container_remove( GTK_CONTAINER(m_widget->parent), m_widget );
3192
3193 wxASSERT( GTK_IS_WIDGET(m_widget) );
3194
3195 if (newParent)
3196 {
3197 if (GTK_WIDGET_VISIBLE (newParent->m_widget))
3198 {
3199 m_showOnIdle = true;
3200 gtk_widget_hide( m_widget );
3201 }
3202 /* insert GTK representation */
3203 newParent->AddChildGTK(this);
3204 }
3205
3206 SetLayoutDirection(wxLayout_Default);
3207
3208 return true;
3209 }
3210
3211 void wxWindowGTK::DoAddChild(wxWindowGTK *child)
3212 {
3213 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
3214 wxASSERT_MSG( (child != NULL), wxT("invalid child window") );
3215
3216 /* add to list */
3217 AddChild( child );
3218
3219 /* insert GTK representation */
3220 AddChildGTK(child);
3221 }
3222
3223 void wxWindowGTK::AddChild(wxWindowBase *child)
3224 {
3225 wxWindowBase::AddChild(child);
3226 m_dirtyTabOrder = true;
3227 wxTheApp->WakeUpIdle();
3228 }
3229
3230 void wxWindowGTK::RemoveChild(wxWindowBase *child)
3231 {
3232 wxWindowBase::RemoveChild(child);
3233 m_dirtyTabOrder = true;
3234 wxTheApp->WakeUpIdle();
3235 }
3236
3237 /* static */
3238 wxLayoutDirection wxWindowGTK::GTKGetLayout(GtkWidget *widget)
3239 {
3240 return gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL
3241 ? wxLayout_RightToLeft
3242 : wxLayout_LeftToRight;
3243 }
3244
3245 /* static */
3246 void wxWindowGTK::GTKSetLayout(GtkWidget *widget, wxLayoutDirection dir)
3247 {
3248 wxASSERT_MSG( dir != wxLayout_Default, _T("invalid layout direction") );
3249
3250 gtk_widget_set_direction(widget,
3251 dir == wxLayout_RightToLeft ? GTK_TEXT_DIR_RTL
3252 : GTK_TEXT_DIR_LTR);
3253 }
3254
3255 wxLayoutDirection wxWindowGTK::GetLayoutDirection() const
3256 {
3257 return GTKGetLayout(m_widget);
3258 }
3259
3260 void wxWindowGTK::SetLayoutDirection(wxLayoutDirection dir)
3261 {
3262 if ( dir == wxLayout_Default )
3263 {
3264 const wxWindow *const parent = GetParent();
3265 if ( parent )
3266 {
3267 // inherit layout from parent.
3268 dir = parent->GetLayoutDirection();
3269 }
3270 else // no parent, use global default layout
3271 {
3272 dir = wxTheApp->GetLayoutDirection();
3273 }
3274 }
3275
3276 if ( dir == wxLayout_Default )
3277 return;
3278
3279 GTKSetLayout(m_widget, dir);
3280
3281 if (m_wxwindow && (m_wxwindow != m_widget))
3282 GTKSetLayout(m_wxwindow, dir);
3283 }
3284
3285 wxCoord
3286 wxWindowGTK::AdjustForLayoutDirection(wxCoord x,
3287 wxCoord WXUNUSED(width),
3288 wxCoord WXUNUSED(widthTotal)) const
3289 {
3290 // We now mirror the coordinates of RTL windows in wxPizza
3291 return x;
3292 }
3293
3294 void wxWindowGTK::DoMoveInTabOrder(wxWindow *win, WindowOrder move)
3295 {
3296 wxWindowBase::DoMoveInTabOrder(win, move);
3297 m_dirtyTabOrder = true;
3298 wxTheApp->WakeUpIdle();
3299 }
3300
3301 bool wxWindowGTK::DoNavigateIn(int flags)
3302 {
3303 if ( flags & wxNavigationKeyEvent::WinChange )
3304 {
3305 wxFAIL_MSG( _T("not implemented") );
3306
3307 return false;
3308 }
3309 else // navigate inside the container
3310 {
3311 wxWindow *parent = wxGetTopLevelParent((wxWindow *)this);
3312 wxCHECK_MSG( parent, false, _T("every window must have a TLW parent") );
3313
3314 GtkDirectionType dir;
3315 dir = flags & wxNavigationKeyEvent::IsForward ? GTK_DIR_TAB_FORWARD
3316 : GTK_DIR_TAB_BACKWARD;
3317
3318 gboolean rc;
3319 g_signal_emit_by_name(parent->m_widget, "focus", dir, &rc);
3320
3321 return rc == TRUE;
3322 }
3323 }
3324
3325 bool wxWindowGTK::GTKWidgetNeedsMnemonic() const
3326 {
3327 // none needed by default
3328 return false;
3329 }
3330
3331 void wxWindowGTK::GTKWidgetDoSetMnemonic(GtkWidget* WXUNUSED(w))
3332 {
3333 // nothing to do by default since none is needed
3334 }
3335
3336 void wxWindowGTK::RealizeTabOrder()
3337 {
3338 if (m_wxwindow)
3339 {
3340 if ( !m_children.empty() )
3341 {
3342 // we don't only construct the correct focus chain but also use
3343 // this opportunity to update the mnemonic widgets for the widgets
3344 // that need them
3345
3346 GList *chain = NULL;
3347 wxWindowGTK* mnemonicWindow = NULL;
3348
3349 for ( wxWindowList::const_iterator i = m_children.begin();
3350 i != m_children.end();
3351 ++i )
3352 {
3353 wxWindowGTK *win = *i;
3354
3355 if ( mnemonicWindow )
3356 {
3357 if ( win->AcceptsFocusFromKeyboard() )
3358 {
3359 // wxComboBox et al. needs to focus on on a different
3360 // widget than m_widget, so if the main widget isn't
3361 // focusable try the connect widget
3362 GtkWidget* w = win->m_widget;
3363 if ( !GTK_WIDGET_CAN_FOCUS(w) )
3364 {
3365 w = win->GetConnectWidget();
3366 if ( !GTK_WIDGET_CAN_FOCUS(w) )
3367 w = NULL;
3368 }
3369
3370 if ( w )
3371 {
3372 mnemonicWindow->GTKWidgetDoSetMnemonic(w);
3373 mnemonicWindow = NULL;
3374 }
3375 }
3376 }
3377 else if ( win->GTKWidgetNeedsMnemonic() )
3378 {
3379 mnemonicWindow = win;
3380 }
3381
3382 chain = g_list_prepend(chain, win->m_widget);
3383 }
3384
3385 chain = g_list_reverse(chain);
3386
3387 gtk_container_set_focus_chain(GTK_CONTAINER(m_wxwindow), chain);
3388 g_list_free(chain);
3389 }
3390 else // no children
3391 {
3392 gtk_container_unset_focus_chain(GTK_CONTAINER(m_wxwindow));
3393 }
3394 }
3395 }
3396
3397 void wxWindowGTK::Raise()
3398 {
3399 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3400
3401 if (m_wxwindow && m_wxwindow->window)
3402 {
3403 gdk_window_raise( m_wxwindow->window );
3404 }
3405 else if (m_widget->window)
3406 {
3407 gdk_window_raise( m_widget->window );
3408 }
3409 }
3410
3411 void wxWindowGTK::Lower()
3412 {
3413 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3414
3415 if (m_wxwindow && m_wxwindow->window)
3416 {
3417 gdk_window_lower( m_wxwindow->window );
3418 }
3419 else if (m_widget->window)
3420 {
3421 gdk_window_lower( m_widget->window );
3422 }
3423 }
3424
3425 bool wxWindowGTK::SetCursor( const wxCursor &cursor )
3426 {
3427 if ( !wxWindowBase::SetCursor(cursor.Ok() ? cursor : *wxSTANDARD_CURSOR) )
3428 return false;
3429
3430 GTKUpdateCursor();
3431
3432 return true;
3433 }
3434
3435 void wxWindowGTK::GTKUpdateCursor()
3436 {
3437 wxCursor cursor(g_globalCursor.Ok() ? g_globalCursor : GetCursor());
3438 if ( cursor.Ok() )
3439 {
3440 wxArrayGdkWindows windowsThis;
3441 GdkWindow * const winThis = GTKGetWindow(windowsThis);
3442 if ( winThis )
3443 {
3444 gdk_window_set_cursor(winThis, cursor.GetCursor());
3445 }
3446 else
3447 {
3448 const size_t count = windowsThis.size();
3449 for ( size_t n = 0; n < count; n++ )
3450 {
3451 GdkWindow *win = windowsThis[n];
3452 if ( !win )
3453 {
3454 wxFAIL_MSG(_T("NULL window returned by GTKGetWindow()?"));
3455 continue;
3456 }
3457
3458 gdk_window_set_cursor(win, cursor.GetCursor());
3459 }
3460 }
3461 }
3462 }
3463
3464 void wxWindowGTK::WarpPointer( int x, int y )
3465 {
3466 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3467
3468 // We provide this function ourselves as it is
3469 // missing in GDK (top of this file).
3470
3471 GdkWindow *window = NULL;
3472 if (m_wxwindow)
3473 window = m_wxwindow->window;
3474 else
3475 window = GetConnectWidget()->window;
3476
3477 if (window)
3478 gdk_window_warp_pointer( window, x, y );
3479 }
3480
3481 wxWindowGTK::ScrollDir wxWindowGTK::ScrollDirFromRange(GtkRange *range) const
3482 {
3483 // find the scrollbar which generated the event
3484 for ( int dir = 0; dir < ScrollDir_Max; dir++ )
3485 {
3486 if ( range == m_scrollBar[dir] )
3487 return (ScrollDir)dir;
3488 }
3489
3490 wxFAIL_MSG( _T("event from unknown scrollbar received") );
3491
3492 return ScrollDir_Max;
3493 }
3494
3495 bool wxWindowGTK::DoScrollByUnits(ScrollDir dir, ScrollUnit unit, int units)
3496 {
3497 bool changed = false;
3498 GtkRange* range = m_scrollBar[dir];
3499 if ( range && units )
3500 {
3501 GtkAdjustment* adj = range->adjustment;
3502 gdouble inc = unit == ScrollUnit_Line ? adj->step_increment
3503 : adj->page_increment;
3504
3505 const int posOld = int(adj->value + 0.5);
3506 gtk_range_set_value(range, posOld + units*inc);
3507
3508 changed = int(adj->value + 0.5) != posOld;
3509 }
3510
3511 return changed;
3512 }
3513
3514 bool wxWindowGTK::ScrollLines(int lines)
3515 {
3516 return DoScrollByUnits(ScrollDir_Vert, ScrollUnit_Line, lines);
3517 }
3518
3519 bool wxWindowGTK::ScrollPages(int pages)
3520 {
3521 return DoScrollByUnits(ScrollDir_Vert, ScrollUnit_Page, pages);
3522 }
3523
3524 void wxWindowGTK::Refresh(bool WXUNUSED(eraseBackground),
3525 const wxRect *rect)
3526 {
3527 if (!m_widget)
3528 return;
3529 if (!m_widget->window)
3530 return;
3531
3532 if (m_wxwindow)
3533 {
3534 if (m_wxwindow->window == NULL) return;
3535
3536 GdkRectangle gdk_rect,
3537 *p;
3538 if (rect)
3539 {
3540 gdk_rect.x = rect->x;
3541 gdk_rect.y = rect->y;
3542 gdk_rect.width = rect->width;
3543 gdk_rect.height = rect->height;
3544 if (GetLayoutDirection() == wxLayout_RightToLeft)
3545 gdk_rect.x = GetClientSize().x - gdk_rect.x - gdk_rect.width;
3546
3547 p = &gdk_rect;
3548 }
3549 else // invalidate everything
3550 {
3551 p = NULL;
3552 }
3553
3554 gdk_window_invalidate_rect(m_wxwindow->window, p, true);
3555 }
3556 }
3557
3558 void wxWindowGTK::Update()
3559 {
3560 GtkUpdate();
3561
3562 // when we call Update() we really want to update the window immediately on
3563 // screen, even if it means flushing the entire queue and hence slowing down
3564 // everything -- but it should still be done, it's just that Update() should
3565 // be called very rarely
3566 gdk_flush();
3567 }
3568
3569 void wxWindowGTK::GtkUpdate()
3570 {
3571 if (m_wxwindow && m_wxwindow->window)
3572 gdk_window_process_updates(m_wxwindow->window, false);
3573 if (m_widget && m_widget->window && (m_wxwindow != m_widget))
3574 gdk_window_process_updates( m_widget->window, FALSE );
3575
3576 // for consistency with other platforms (and also because it's convenient
3577 // to be able to update an entire TLW by calling Update() only once), we
3578 // should also update all our children here
3579 for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
3580 node;
3581 node = node->GetNext() )
3582 {
3583 node->GetData()->GtkUpdate();
3584 }
3585 }
3586
3587 bool wxWindowGTK::DoIsExposed( int x, int y ) const
3588 {
3589 return m_updateRegion.Contains(x, y) != wxOutRegion;
3590 }
3591
3592
3593 bool wxWindowGTK::DoIsExposed( int x, int y, int w, int h ) const
3594 {
3595 if (GetLayoutDirection() == wxLayout_RightToLeft)
3596 return m_updateRegion.Contains(x-w, y, w, h) != wxOutRegion;
3597 else
3598 return m_updateRegion.Contains(x, y, w, h) != wxOutRegion;
3599 }
3600
3601 void wxWindowGTK::GtkSendPaintEvents()
3602 {
3603 if (!m_wxwindow)
3604 {
3605 m_updateRegion.Clear();
3606 return;
3607 }
3608
3609 // Clip to paint region in wxClientDC
3610 m_clipPaintRegion = true;
3611
3612 m_nativeUpdateRegion = m_updateRegion;
3613
3614 if (GetLayoutDirection() == wxLayout_RightToLeft)
3615 {
3616 // Transform m_updateRegion under RTL
3617 m_updateRegion.Clear();
3618
3619 gint width;
3620 gdk_drawable_get_size(m_wxwindow->window, &width, NULL);
3621
3622 wxRegionIterator upd( m_nativeUpdateRegion );
3623 while (upd)
3624 {
3625 wxRect rect;
3626 rect.x = upd.GetX();
3627 rect.y = upd.GetY();
3628 rect.width = upd.GetWidth();
3629 rect.height = upd.GetHeight();
3630
3631 rect.x = width - rect.x - rect.width;
3632 m_updateRegion.Union( rect );
3633
3634 ++upd;
3635 }
3636 }
3637
3638 if (GetThemeEnabled() && (GetBackgroundStyle() == wxBG_STYLE_SYSTEM))
3639 {
3640 // find ancestor from which to steal background
3641 wxWindow *parent = wxGetTopLevelParent((wxWindow *)this);
3642 if (!parent)
3643 parent = (wxWindow*)this;
3644
3645 if (GTK_WIDGET_MAPPED(parent->m_widget))
3646 {
3647 wxRegionIterator upd( m_nativeUpdateRegion );
3648 while (upd)
3649 {
3650 GdkRectangle rect;
3651 rect.x = upd.GetX();
3652 rect.y = upd.GetY();
3653 rect.width = upd.GetWidth();
3654 rect.height = upd.GetHeight();
3655
3656 gtk_paint_flat_box( parent->m_widget->style,
3657 m_wxwindow->window,
3658 (GtkStateType)GTK_WIDGET_STATE(m_wxwindow),
3659 GTK_SHADOW_NONE,
3660 &rect,
3661 parent->m_widget,
3662 (char *)"base",
3663 0, 0, -1, -1 );
3664
3665 ++upd;
3666 }
3667 }
3668 }
3669 else
3670 {
3671 wxWindowDC dc( (wxWindow*)this );
3672 dc.SetDeviceClippingRegion( m_updateRegion );
3673
3674 // Work around gtk-qt <= 0.60 bug whereby the window colour
3675 // remains grey
3676 if (GetBackgroundStyle() == wxBG_STYLE_COLOUR && GetBackgroundColour().Ok() && wxSystemOptions::GetOptionInt(wxT("gtk.window.force-background-colour")) == 1)
3677 {
3678 dc.SetBackground(wxBrush(GetBackgroundColour()));
3679 dc.Clear();
3680 }
3681
3682 wxEraseEvent erase_event( GetId(), &dc );
3683 erase_event.SetEventObject( this );
3684
3685 HandleWindowEvent(erase_event);
3686 }
3687
3688 wxNcPaintEvent nc_paint_event( GetId() );
3689 nc_paint_event.SetEventObject( this );
3690 HandleWindowEvent( nc_paint_event );
3691
3692 wxPaintEvent paint_event( GetId() );
3693 paint_event.SetEventObject( this );
3694 HandleWindowEvent( paint_event );
3695
3696 m_clipPaintRegion = false;
3697
3698 m_updateRegion.Clear();
3699 m_nativeUpdateRegion.Clear();
3700 }
3701
3702 void wxWindowGTK::SetDoubleBuffered( bool on )
3703 {
3704 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3705
3706 if ( m_wxwindow )
3707 gtk_widget_set_double_buffered( m_wxwindow, on );
3708 }
3709
3710 bool wxWindowGTK::IsDoubleBuffered() const
3711 {
3712 return GTK_WIDGET_DOUBLE_BUFFERED( m_wxwindow );
3713 }
3714
3715 void wxWindowGTK::ClearBackground()
3716 {
3717 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
3718 }
3719
3720 #if wxUSE_TOOLTIPS
3721 void wxWindowGTK::DoSetToolTip( wxToolTip *tip )
3722 {
3723 wxWindowBase::DoSetToolTip(tip);
3724
3725 if (m_tooltip)
3726 m_tooltip->Apply( (wxWindow *)this );
3727 }
3728
3729 void wxWindowGTK::ApplyToolTip( GtkTooltips *tips, const gchar *tip )
3730 {
3731 gtk_tooltips_set_tip(tips, GetConnectWidget(), tip, NULL);
3732 }
3733 #endif // wxUSE_TOOLTIPS
3734
3735 bool wxWindowGTK::SetBackgroundColour( const wxColour &colour )
3736 {
3737 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
3738
3739 if (!wxWindowBase::SetBackgroundColour(colour))
3740 return false;
3741
3742 if (colour.Ok())
3743 {
3744 // We need the pixel value e.g. for background clearing.
3745 m_backgroundColour.CalcPixel(gtk_widget_get_colormap(m_widget));
3746 }
3747
3748 // apply style change (forceStyle=true so that new style is applied
3749 // even if the bg colour changed from valid to wxNullColour)
3750 if (GetBackgroundStyle() != wxBG_STYLE_CUSTOM)
3751 ApplyWidgetStyle(true);
3752
3753 return true;
3754 }
3755
3756 bool wxWindowGTK::SetForegroundColour( const wxColour &colour )
3757 {
3758 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
3759
3760 if (!wxWindowBase::SetForegroundColour(colour))
3761 {
3762 return false;
3763 }
3764
3765 if (colour.Ok())
3766 {
3767 // We need the pixel value e.g. for background clearing.
3768 m_foregroundColour.CalcPixel(gtk_widget_get_colormap(m_widget));
3769 }
3770
3771 // apply style change (forceStyle=true so that new style is applied
3772 // even if the bg colour changed from valid to wxNullColour):
3773 ApplyWidgetStyle(true);
3774
3775 return true;
3776 }
3777
3778 PangoContext *wxWindowGTK::GtkGetPangoDefaultContext()
3779 {
3780 return gtk_widget_get_pango_context( m_widget );
3781 }
3782
3783 GtkRcStyle *wxWindowGTK::CreateWidgetStyle(bool forceStyle)
3784 {
3785 // do we need to apply any changes at all?
3786 if ( !forceStyle &&
3787 !m_font.Ok() &&
3788 !m_foregroundColour.Ok() && !m_backgroundColour.Ok() )
3789 {
3790 return NULL;
3791 }
3792
3793 GtkRcStyle *style = gtk_rc_style_new();
3794
3795 if ( m_font.Ok() )
3796 {
3797 style->font_desc =
3798 pango_font_description_copy( m_font.GetNativeFontInfo()->description );
3799 }
3800
3801 int flagsNormal = 0,
3802 flagsPrelight = 0,
3803 flagsActive = 0,
3804 flagsInsensitive = 0;
3805
3806 if ( m_foregroundColour.Ok() )
3807 {
3808 const GdkColor *fg = m_foregroundColour.GetColor();
3809
3810 style->fg[GTK_STATE_NORMAL] =
3811 style->text[GTK_STATE_NORMAL] = *fg;
3812 flagsNormal |= GTK_RC_FG | GTK_RC_TEXT;
3813
3814 style->fg[GTK_STATE_PRELIGHT] =
3815 style->text[GTK_STATE_PRELIGHT] = *fg;
3816 flagsPrelight |= GTK_RC_FG | GTK_RC_TEXT;
3817
3818 style->fg[GTK_STATE_ACTIVE] =
3819 style->text[GTK_STATE_ACTIVE] = *fg;
3820 flagsActive |= GTK_RC_FG | GTK_RC_TEXT;
3821 }
3822
3823 if ( m_backgroundColour.Ok() )
3824 {
3825 const GdkColor *bg = m_backgroundColour.GetColor();
3826
3827 style->bg[GTK_STATE_NORMAL] =
3828 style->base[GTK_STATE_NORMAL] = *bg;
3829 flagsNormal |= GTK_RC_BG | GTK_RC_BASE;
3830
3831 style->bg[GTK_STATE_PRELIGHT] =
3832 style->base[GTK_STATE_PRELIGHT] = *bg;
3833 flagsPrelight |= GTK_RC_BG | GTK_RC_BASE;
3834
3835 style->bg[GTK_STATE_ACTIVE] =
3836 style->base[GTK_STATE_ACTIVE] = *bg;
3837 flagsActive |= GTK_RC_BG | GTK_RC_BASE;
3838
3839 style->bg[GTK_STATE_INSENSITIVE] =
3840 style->base[GTK_STATE_INSENSITIVE] = *bg;
3841 flagsInsensitive |= GTK_RC_BG | GTK_RC_BASE;
3842 }
3843
3844 style->color_flags[GTK_STATE_NORMAL] = (GtkRcFlags)flagsNormal;
3845 style->color_flags[GTK_STATE_PRELIGHT] = (GtkRcFlags)flagsPrelight;
3846 style->color_flags[GTK_STATE_ACTIVE] = (GtkRcFlags)flagsActive;
3847 style->color_flags[GTK_STATE_INSENSITIVE] = (GtkRcFlags)flagsInsensitive;
3848
3849 return style;
3850 }
3851
3852 void wxWindowGTK::ApplyWidgetStyle(bool forceStyle)
3853 {
3854 GtkRcStyle *style = CreateWidgetStyle(forceStyle);
3855 if ( style )
3856 {
3857 DoApplyWidgetStyle(style);
3858 gtk_rc_style_unref(style);
3859 }
3860
3861 // Style change may affect GTK+'s size calculation:
3862 InvalidateBestSize();
3863 }
3864
3865 void wxWindowGTK::DoApplyWidgetStyle(GtkRcStyle *style)
3866 {
3867 wxSuspendStyleEvents s(static_cast<wxWindow*>(this));
3868
3869 if (m_wxwindow)
3870 gtk_widget_modify_style(m_wxwindow, style);
3871 else
3872 gtk_widget_modify_style(m_widget, style);
3873 }
3874
3875 bool wxWindowGTK::SetBackgroundStyle(wxBackgroundStyle style)
3876 {
3877 wxWindowBase::SetBackgroundStyle(style);
3878
3879 if (style == wxBG_STYLE_CUSTOM)
3880 {
3881 GdkWindow *window;
3882 if ( m_wxwindow )
3883 {
3884 window = m_wxwindow->window;
3885 }
3886 else
3887 {
3888 GtkWidget * const w = GetConnectWidget();
3889 window = w ? w->window : NULL;
3890 }
3891
3892 if (window)
3893 {
3894 // Make sure GDK/X11 doesn't refresh the window
3895 // automatically.
3896 gdk_window_set_back_pixmap( window, None, False );
3897 #ifdef __X__
3898 Display* display = GDK_WINDOW_DISPLAY(window);
3899 XFlush(display);
3900 #endif
3901 m_needsStyleChange = false;
3902 }
3903 else // window not realized yet
3904 {
3905 // Do in OnIdle, because the window is not yet available
3906 m_needsStyleChange = true;
3907 }
3908
3909 // Don't apply widget style, or we get a grey background
3910 }
3911 else
3912 {
3913 // apply style change (forceStyle=true so that new style is applied
3914 // even if the bg colour changed from valid to wxNullColour):
3915 ApplyWidgetStyle(true);
3916 }
3917 return true;
3918 }
3919
3920 // ----------------------------------------------------------------------------
3921 // Pop-up menu stuff
3922 // ----------------------------------------------------------------------------
3923
3924 #if wxUSE_MENUS_NATIVE
3925
3926 static void SetInvokingWindow( wxMenu *menu, wxWindow* win )
3927 {
3928 menu->SetInvokingWindow( win );
3929
3930 wxMenuItemList::compatibility_iterator node = menu->GetMenuItems().GetFirst();
3931 while (node)
3932 {
3933 wxMenuItem *menuitem = node->GetData();
3934 if (menuitem->IsSubMenu())
3935 {
3936 SetInvokingWindow( menuitem->GetSubMenu(), win );
3937 }
3938
3939 node = node->GetNext();
3940 }
3941 }
3942
3943 extern "C" {
3944 static
3945 void wxPopupMenuPositionCallback( GtkMenu *menu,
3946 gint *x, gint *y,
3947 gboolean * WXUNUSED(whatever),
3948 gpointer user_data )
3949 {
3950 // ensure that the menu appears entirely on screen
3951 GtkRequisition req;
3952 gtk_widget_get_child_requisition(GTK_WIDGET(menu), &req);
3953
3954 wxSize sizeScreen = wxGetDisplaySize();
3955 wxPoint *pos = (wxPoint*)user_data;
3956
3957 gint xmax = sizeScreen.x - req.width,
3958 ymax = sizeScreen.y - req.height;
3959
3960 *x = pos->x < xmax ? pos->x : xmax;
3961 *y = pos->y < ymax ? pos->y : ymax;
3962 }
3963 }
3964
3965 void wxWindowGTK::DoPopupMenuUpdateUI(wxMenu* menu)
3966 {
3967 menu->UpdateUI();
3968 }
3969
3970 bool wxWindowGTK::DoPopupMenu( wxMenu *menu, int x, int y )
3971 {
3972 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
3973
3974 wxCHECK_MSG( menu != NULL, false, wxT("invalid popup-menu") );
3975
3976 SetInvokingWindow( menu, this );
3977
3978 DoPopupMenuUpdateUI(menu);
3979
3980 wxPoint pos;
3981 gpointer userdata;
3982 GtkMenuPositionFunc posfunc;
3983 if ( x == -1 && y == -1 )
3984 {
3985 // use GTK's default positioning algorithm
3986 userdata = NULL;
3987 posfunc = NULL;
3988 }
3989 else
3990 {
3991 pos = ClientToScreen(wxPoint(x, y));
3992 userdata = &pos;
3993 posfunc = wxPopupMenuPositionCallback;
3994 }
3995
3996 menu->m_popupShown = true;
3997 gtk_menu_popup(
3998 GTK_MENU(menu->m_menu),
3999 NULL, // parent menu shell
4000 NULL, // parent menu item
4001 posfunc, // function to position it
4002 userdata, // client data
4003 0, // button used to activate it
4004 gtk_get_current_event_time()
4005 );
4006
4007 while (menu->m_popupShown)
4008 {
4009 gtk_main_iteration();
4010 }
4011
4012 return true;
4013 }
4014
4015 #endif // wxUSE_MENUS_NATIVE
4016
4017 #if wxUSE_DRAG_AND_DROP
4018
4019 void wxWindowGTK::SetDropTarget( wxDropTarget *dropTarget )
4020 {
4021 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4022
4023 GtkWidget *dnd_widget = GetConnectWidget();
4024
4025 if (m_dropTarget) m_dropTarget->UnregisterWidget( dnd_widget );
4026
4027 if (m_dropTarget) delete m_dropTarget;
4028 m_dropTarget = dropTarget;
4029
4030 if (m_dropTarget) m_dropTarget->RegisterWidget( dnd_widget );
4031 }
4032
4033 #endif // wxUSE_DRAG_AND_DROP
4034
4035 GtkWidget* wxWindowGTK::GetConnectWidget()
4036 {
4037 GtkWidget *connect_widget = m_widget;
4038 if (m_wxwindow) connect_widget = m_wxwindow;
4039
4040 return connect_widget;
4041 }
4042
4043 bool wxWindowGTK::GTKIsOwnWindow(GdkWindow *window) const
4044 {
4045 wxArrayGdkWindows windowsThis;
4046 GdkWindow * const winThis = GTKGetWindow(windowsThis);
4047
4048 return winThis ? window == winThis
4049 : windowsThis.Index(window) != wxNOT_FOUND;
4050 }
4051
4052 GdkWindow *wxWindowGTK::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
4053 {
4054 return m_wxwindow ? m_wxwindow->window : m_widget->window;
4055 }
4056
4057 bool wxWindowGTK::SetFont( const wxFont &font )
4058 {
4059 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
4060
4061 if (!wxWindowBase::SetFont(font))
4062 return false;
4063
4064 // apply style change (forceStyle=true so that new style is applied
4065 // even if the font changed from valid to wxNullFont):
4066 ApplyWidgetStyle(true);
4067
4068 return true;
4069 }
4070
4071 void wxWindowGTK::DoCaptureMouse()
4072 {
4073 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4074
4075 GdkWindow *window = NULL;
4076 if (m_wxwindow)
4077 window = m_wxwindow->window;
4078 else
4079 window = GetConnectWidget()->window;
4080
4081 wxCHECK_RET( window, _T("CaptureMouse() failed") );
4082
4083 const wxCursor* cursor = &m_cursor;
4084 if (!cursor->Ok())
4085 cursor = wxSTANDARD_CURSOR;
4086
4087 gdk_pointer_grab( window, FALSE,
4088 (GdkEventMask)
4089 (GDK_BUTTON_PRESS_MASK |
4090 GDK_BUTTON_RELEASE_MASK |
4091 GDK_POINTER_MOTION_HINT_MASK |
4092 GDK_POINTER_MOTION_MASK),
4093 NULL,
4094 cursor->GetCursor(),
4095 (guint32)GDK_CURRENT_TIME );
4096 g_captureWindow = this;
4097 g_captureWindowHasMouse = true;
4098 }
4099
4100 void wxWindowGTK::DoReleaseMouse()
4101 {
4102 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4103
4104 wxCHECK_RET( g_captureWindow, wxT("can't release mouse - not captured") );
4105
4106 g_captureWindow = NULL;
4107
4108 GdkWindow *window = NULL;
4109 if (m_wxwindow)
4110 window = m_wxwindow->window;
4111 else
4112 window = GetConnectWidget()->window;
4113
4114 if (!window)
4115 return;
4116
4117 gdk_pointer_ungrab ( (guint32)GDK_CURRENT_TIME );
4118 }
4119
4120 void wxWindowGTK::GTKReleaseMouseAndNotify()
4121 {
4122 DoReleaseMouse();
4123 wxMouseCaptureLostEvent evt(GetId());
4124 evt.SetEventObject( this );
4125 HandleWindowEvent( evt );
4126 }
4127
4128 /* static */
4129 wxWindow *wxWindowBase::GetCapture()
4130 {
4131 return (wxWindow *)g_captureWindow;
4132 }
4133
4134 bool wxWindowGTK::IsRetained() const
4135 {
4136 return false;
4137 }
4138
4139 void wxWindowGTK::SetScrollbar(int orient,
4140 int pos,
4141 int thumbVisible,
4142 int range,
4143 bool WXUNUSED(update))
4144 {
4145 const int dir = ScrollDirFromOrient(orient);
4146 GtkRange* const sb = m_scrollBar[dir];
4147 wxCHECK_RET( sb, _T("this window is not scrollable") );
4148
4149 if (range <= 0)
4150 {
4151 // GtkRange requires upper > lower
4152 range =
4153 thumbVisible = 1;
4154 }
4155
4156 GtkAdjustment * const adj = sb->adjustment;
4157 adj->step_increment = 1;
4158 adj->page_increment =
4159 adj->page_size = thumbVisible;
4160 adj->value = pos;
4161
4162 g_signal_handlers_block_by_func(
4163 sb, (void*)gtk_scrollbar_value_changed, this);
4164
4165 gtk_range_set_range(sb, 0, range);
4166 m_scrollPos[dir] = sb->adjustment->value;
4167
4168 g_signal_handlers_unblock_by_func(
4169 sb, (void*)gtk_scrollbar_value_changed, this);
4170 }
4171
4172 void wxWindowGTK::SetScrollPos(int orient, int pos, bool WXUNUSED(refresh))
4173 {
4174 const int dir = ScrollDirFromOrient(orient);
4175 GtkRange * const sb = m_scrollBar[dir];
4176 wxCHECK_RET( sb, _T("this window is not scrollable") );
4177
4178 // This check is more than an optimization. Without it, the slider
4179 // will not move smoothly while tracking when using wxScrollHelper.
4180 if (GetScrollPos(orient) != pos)
4181 {
4182 g_signal_handlers_block_by_func(
4183 sb, (void*)gtk_scrollbar_value_changed, this);
4184
4185 gtk_range_set_value(sb, pos);
4186 m_scrollPos[dir] = sb->adjustment->value;
4187
4188 g_signal_handlers_unblock_by_func(
4189 sb, (void*)gtk_scrollbar_value_changed, this);
4190 }
4191 }
4192
4193 int wxWindowGTK::GetScrollThumb(int orient) const
4194 {
4195 GtkRange * const sb = m_scrollBar[ScrollDirFromOrient(orient)];
4196 wxCHECK_MSG( sb, 0, _T("this window is not scrollable") );
4197
4198 return int(sb->adjustment->page_size);
4199 }
4200
4201 int wxWindowGTK::GetScrollPos( int orient ) const
4202 {
4203 GtkRange * const sb = m_scrollBar[ScrollDirFromOrient(orient)];
4204 wxCHECK_MSG( sb, 0, _T("this window is not scrollable") );
4205
4206 return int(sb->adjustment->value + 0.5);
4207 }
4208
4209 int wxWindowGTK::GetScrollRange( int orient ) const
4210 {
4211 GtkRange * const sb = m_scrollBar[ScrollDirFromOrient(orient)];
4212 wxCHECK_MSG( sb, 0, _T("this window is not scrollable") );
4213
4214 return int(sb->adjustment->upper);
4215 }
4216
4217 // Determine if increment is the same as +/-x, allowing for some small
4218 // difference due to possible inexactness in floating point arithmetic
4219 static inline bool IsScrollIncrement(double increment, double x)
4220 {
4221 wxASSERT(increment > 0);
4222 const double tolerance = 1.0 / 1024;
4223 return fabs(increment - fabs(x)) < tolerance;
4224 }
4225
4226 wxEventType wxWindowGTK::GetScrollEventType(GtkRange* range)
4227 {
4228 wxASSERT(range == m_scrollBar[0] || range == m_scrollBar[1]);
4229
4230 const int barIndex = range == m_scrollBar[1];
4231 GtkAdjustment* adj = range->adjustment;
4232
4233 const int value = int(adj->value + 0.5);
4234
4235 // save previous position
4236 const double oldPos = m_scrollPos[barIndex];
4237 // update current position
4238 m_scrollPos[barIndex] = adj->value;
4239 // If event should be ignored, or integral position has not changed
4240 if (!m_hasVMT || g_blockEventsOnDrag || value == int(oldPos + 0.5))
4241 {
4242 return wxEVT_NULL;
4243 }
4244
4245 wxEventType eventType = wxEVT_SCROLL_THUMBTRACK;
4246 if (!m_isScrolling)
4247 {
4248 // Difference from last change event
4249 const double diff = adj->value - oldPos;
4250 const bool isDown = diff > 0;
4251
4252 if (IsScrollIncrement(adj->step_increment, diff))
4253 {
4254 eventType = isDown ? wxEVT_SCROLL_LINEDOWN : wxEVT_SCROLL_LINEUP;
4255 }
4256 else if (IsScrollIncrement(adj->page_increment, diff))
4257 {
4258 eventType = isDown ? wxEVT_SCROLL_PAGEDOWN : wxEVT_SCROLL_PAGEUP;
4259 }
4260 else if (m_mouseButtonDown)
4261 {
4262 // Assume track event
4263 m_isScrolling = true;
4264 }
4265 }
4266 return eventType;
4267 }
4268
4269 void wxWindowGTK::ScrollWindow( int dx, int dy, const wxRect* WXUNUSED(rect) )
4270 {
4271 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4272
4273 wxCHECK_RET( m_wxwindow != NULL, wxT("window needs client area for scrolling") );
4274
4275 // No scrolling requested.
4276 if ((dx == 0) && (dy == 0)) return;
4277
4278 m_clipPaintRegion = true;
4279
4280 WX_PIZZA(m_wxwindow)->scroll(dx, dy);
4281
4282 m_clipPaintRegion = false;
4283
4284 #if wxUSE_CARET
4285 bool restoreCaret = (GetCaret() != NULL && GetCaret()->IsVisible());
4286 if (restoreCaret)
4287 {
4288 wxRect caretRect(GetCaret()->GetPosition(), GetCaret()->GetSize());
4289 if (dx > 0)
4290 caretRect.width += dx;
4291 else
4292 {
4293 caretRect.x += dx; caretRect.width -= dx;
4294 }
4295 if (dy > 0)
4296 caretRect.height += dy;
4297 else
4298 {
4299 caretRect.y += dy; caretRect.height -= dy;
4300 }
4301
4302 RefreshRect(caretRect);
4303 }
4304 #endif // wxUSE_CARET
4305 }
4306
4307 void wxWindowGTK::GtkScrolledWindowSetBorder(GtkWidget* w, int wxstyle)
4308 {
4309 //RN: Note that static controls usually have no border on gtk, so maybe
4310 //it makes sense to treat that as simply no border at the wx level
4311 //as well...
4312 if (!(wxstyle & wxNO_BORDER) && !(wxstyle & wxBORDER_STATIC))
4313 {
4314 GtkShadowType gtkstyle;
4315
4316 if(wxstyle & wxBORDER_RAISED)
4317 gtkstyle = GTK_SHADOW_OUT;
4318 else if (wxstyle & wxBORDER_SUNKEN)
4319 gtkstyle = GTK_SHADOW_IN;
4320 #if 0
4321 // Now obsolete
4322 else if (wxstyle & wxBORDER_DOUBLE)
4323 gtkstyle = GTK_SHADOW_ETCHED_IN;
4324 #endif
4325 else //default
4326 gtkstyle = GTK_SHADOW_IN;
4327
4328 gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(w),
4329 gtkstyle );
4330 }
4331 }
4332
4333 void wxWindowGTK::SetWindowStyleFlag( long style )
4334 {
4335 // Updates the internal variable. NB: Now m_windowStyle bits carry the _new_ style values already
4336 wxWindowBase::SetWindowStyleFlag(style);
4337 }
4338
4339 // Find the wxWindow at the current mouse position, also returning the mouse
4340 // position.
4341 wxWindow* wxFindWindowAtPointer(wxPoint& pt)
4342 {
4343 pt = wxGetMousePosition();
4344 wxWindow* found = wxFindWindowAtPoint(pt);
4345 return found;
4346 }
4347
4348 // Get the current mouse position.
4349 wxPoint wxGetMousePosition()
4350 {
4351 /* This crashes when used within wxHelpContext,
4352 so we have to use the X-specific implementation below.
4353 gint x, y;
4354 GdkModifierType *mask;
4355 (void) gdk_window_get_pointer(NULL, &x, &y, mask);
4356
4357 return wxPoint(x, y);
4358 */
4359
4360 int x, y;
4361 GdkWindow* windowAtPtr = gdk_window_at_pointer(& x, & y);
4362
4363 Display *display = windowAtPtr ? GDK_WINDOW_XDISPLAY(windowAtPtr) : GDK_DISPLAY();
4364 Window rootWindow = RootWindowOfScreen (DefaultScreenOfDisplay(display));
4365 Window rootReturn, childReturn;
4366 int rootX, rootY, winX, winY;
4367 unsigned int maskReturn;
4368
4369 XQueryPointer (display,
4370 rootWindow,
4371 &rootReturn,
4372 &childReturn,
4373 &rootX, &rootY, &winX, &winY, &maskReturn);
4374 return wxPoint(rootX, rootY);
4375
4376 }
4377
4378 GdkWindow* wxWindowGTK::GTKGetDrawingWindow() const
4379 {
4380 GdkWindow* window = NULL;
4381 if (m_wxwindow)
4382 window = m_wxwindow->window;
4383 return window;
4384 }
4385
4386 // ----------------------------------------------------------------------------
4387 // freeze/thaw
4388 // ----------------------------------------------------------------------------
4389
4390 extern "C"
4391 {
4392
4393 // this is called if we attempted to freeze unrealized widget when it finally
4394 // is realized (and so can be frozen):
4395 static void wx_frozen_widget_realize(GtkWidget* w, void* WXUNUSED(data))
4396 {
4397 wxASSERT( w && !GTK_WIDGET_NO_WINDOW(w) );
4398 wxASSERT( GTK_WIDGET_REALIZED(w) );
4399
4400 g_signal_handlers_disconnect_by_func
4401 (
4402 w,
4403 (void*)wx_frozen_widget_realize,
4404 NULL
4405 );
4406
4407 gdk_window_freeze_updates(w->window);
4408 }
4409
4410 } // extern "C"
4411
4412 void wxWindowGTK::GTKFreezeWidget(GtkWidget *w)
4413 {
4414 if ( !w || GTK_WIDGET_NO_WINDOW(w) )
4415 return; // window-less widget, cannot be frozen
4416
4417 if ( !GTK_WIDGET_REALIZED(w) )
4418 {
4419 // we can't thaw unrealized widgets because they don't have GdkWindow,
4420 // so set it up to be done immediately after realization:
4421 g_signal_connect_after
4422 (
4423 w,
4424 "realize",
4425 G_CALLBACK(wx_frozen_widget_realize),
4426 NULL
4427 );
4428 return;
4429 }
4430
4431 gdk_window_freeze_updates(w->window);
4432 }
4433
4434 void wxWindowGTK::GTKThawWidget(GtkWidget *w)
4435 {
4436 if ( !w || GTK_WIDGET_NO_WINDOW(w) )
4437 return; // window-less widget, cannot be frozen
4438
4439 if ( !GTK_WIDGET_REALIZED(w) )
4440 {
4441 // the widget wasn't realized yet, no need to thaw
4442 g_signal_handlers_disconnect_by_func
4443 (
4444 w,
4445 (void*)wx_frozen_widget_realize,
4446 NULL
4447 );
4448 return;
4449 }
4450
4451 gdk_window_thaw_updates(w->window);
4452 }
4453
4454 void wxWindowGTK::DoFreeze()
4455 {
4456 GTKFreezeWidget(m_widget);
4457 if ( m_wxwindow && m_widget != m_wxwindow )
4458 GTKFreezeWidget(m_wxwindow);
4459 }
4460
4461 void wxWindowGTK::DoThaw()
4462 {
4463 GTKThawWidget(m_widget);
4464 if ( m_wxwindow && m_widget != m_wxwindow )
4465 GTKThawWidget(m_wxwindow);
4466 }
wxWidgets (Impactor)