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Reverse hierarchy of wxPizza GdkWindows
[wxWidgets.git] / src / gtk / window.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/gtk/window.cpp
3 // Purpose: wxWindowGTK implementation
4 // Author: Robert Roebling
5 // Id: $Id$
6 // Copyright: (c) 1998 Robert Roebling, Julian Smart
7 // Licence: wxWindows licence
8 /////////////////////////////////////////////////////////////////////////////
9
10 // For compilers that support precompilation, includes "wx.h".
11 #include "wx/wxprec.h"
12
13 #ifdef __VMS
14 #define XWarpPointer XWARPPOINTER
15 #endif
16
17 #include "wx/window.h"
18
19 #ifndef WX_PRECOMP
20 #include "wx/log.h"
21 #include "wx/app.h"
22 #include "wx/toplevel.h"
23 #include "wx/dcclient.h"
24 #include "wx/menu.h"
25 #include "wx/settings.h"
26 #include "wx/msgdlg.h"
27 #include "wx/math.h"
28 #endif
29
30 #include "wx/dnd.h"
31 #include "wx/tooltip.h"
32 #include "wx/caret.h"
33 #include "wx/fontutil.h"
34 #include "wx/sysopt.h"
35
36 #include <ctype.h>
37
38 #include "wx/gtk/private.h"
39 #include "wx/gtk/private/win_gtk.h"
40 #include <gdk/gdkkeysyms.h>
41 #include <gdk/gdkx.h>
42
43 #if !GTK_CHECK_VERSION(2,10,0)
44 // GTK+ can reliably detect Meta key state only since 2.10 when
45 // GDK_META_MASK was introduced -- there wasn't any way to detect it
46 // in older versions. wxGTK used GDK_MOD2_MASK for this purpose, but
47 // GDK_MOD2_MASK is documented as:
48 //
49 // the fifth modifier key (it depends on the modifier mapping of the X
50 // server which key is interpreted as this modifier)
51 //
52 // In other words, it isn't guaranteed to map to Meta. This is a real
53 // problem: it is common to map NumLock to it (in fact, it's an exception
54 // if the X server _doesn't_ use it for NumLock). So the old code caused
55 // wxKeyEvent::MetaDown() to always return true as long as NumLock was on
56 // on many systems, which broke all applications using
57 // wxKeyEvent::GetModifiers() to check modifiers state (see e.g. here:
58 // http://tinyurl.com/56lsk2).
59 //
60 // Because of this, it's better to not detect Meta key state at all than
61 // to detect it incorrectly. Hence the following #define, which causes
62 // m_metaDown to be always set to false.
63 #define GDK_META_MASK 0
64 #endif
65
66 //-----------------------------------------------------------------------------
67 // documentation on internals
68 //-----------------------------------------------------------------------------
69
70 /*
71 I have been asked several times about writing some documentation about
72 the GTK port of wxWidgets, especially its internal structures. Obviously,
73 you cannot understand wxGTK without knowing a little about the GTK, but
74 some more information about what the wxWindow, which is the base class
75 for all other window classes, does seems required as well.
76
77 I)
78
79 What does wxWindow do? It contains the common interface for the following
80 jobs of its descendants:
81
82 1) Define the rudimentary behaviour common to all window classes, such as
83 resizing, intercepting user input (so as to make it possible to use these
84 events for special purposes in a derived class), window names etc.
85
86 2) Provide the possibility to contain and manage children, if the derived
87 class is allowed to contain children, which holds true for those window
88 classes which do not display a native GTK widget. To name them, these
89 classes are wxPanel, wxScrolledWindow, wxDialog, wxFrame. The MDI frame-
90 work classes are a special case and are handled a bit differently from
91 the rest. The same holds true for the wxNotebook class.
92
93 3) Provide the possibility to draw into a client area of a window. This,
94 too, only holds true for classes that do not display a native GTK widget
95 as above.
96
97 4) Provide the entire mechanism for scrolling widgets. This actual inter-
98 face for this is usually in wxScrolledWindow, but the GTK implementation
99 is in this class.
100
101 5) A multitude of helper or extra methods for special purposes, such as
102 Drag'n'Drop, managing validators etc.
103
104 6) Display a border (sunken, raised, simple or none).
105
106 Normally one might expect, that one wxWidgets window would always correspond
107 to one GTK widget. Under GTK, there is no such all-round widget that has all
108 the functionality. Moreover, the GTK defines a client area as a different
109 widget from the actual widget you are handling. Last but not least some
110 special classes (e.g. wxFrame) handle different categories of widgets and
111 still have the possibility to draw something in the client area.
112 It was therefore required to write a special purpose GTK widget, that would
113 represent a client area in the sense of wxWidgets capable to do the jobs
114 2), 3) and 4). I have written this class and it resides in win_gtk.c of
115 this directory.
116
117 All windows must have a widget, with which they interact with other under-
118 lying GTK widgets. It is this widget, e.g. that has to be resized etc and
119 the wxWindow class has a member variable called m_widget which holds a
120 pointer to this widget. When the window class represents a GTK native widget,
121 this is (in most cases) the only GTK widget the class manages. E.g. the
122 wxStaticText class handles only a GtkLabel widget a pointer to which you
123 can find in m_widget (defined in wxWindow)
124
125 When the class has a client area for drawing into and for containing children
126 it has to handle the client area widget (of the type wxPizza, defined in
127 win_gtk.cpp), but there could be any number of widgets, handled by a class.
128 The common rule for all windows is only, that the widget that interacts with
129 the rest of GTK must be referenced in m_widget and all other widgets must be
130 children of this widget on the GTK level. The top-most widget, which also
131 represents the client area, must be in the m_wxwindow field and must be of
132 the type wxPizza.
133
134 As I said, the window classes that display a GTK native widget only have
135 one widget, so in the case of e.g. the wxButton class m_widget holds a
136 pointer to a GtkButton widget. But windows with client areas (for drawing
137 and children) have a m_widget field that is a pointer to a GtkScrolled-
138 Window and a m_wxwindow field that is pointer to a wxPizza and this
139 one is (in the GTK sense) a child of the GtkScrolledWindow.
140
141 If the m_wxwindow field is set, then all input to this widget is inter-
142 cepted and sent to the wxWidgets class. If not, all input to the widget
143 that gets pointed to by m_widget gets intercepted and sent to the class.
144
145 II)
146
147 The design of scrolling in wxWidgets is markedly different from that offered
148 by the GTK itself and therefore we cannot simply take it as it is. In GTK,
149 clicking on a scrollbar belonging to scrolled window will inevitably move
150 the window. In wxWidgets, the scrollbar will only emit an event, send this
151 to (normally) a wxScrolledWindow and that class will call ScrollWindow()
152 which actually moves the window and its sub-windows. Note that wxPizza
153 memorizes how much it has been scrolled but that wxWidgets forgets this
154 so that the two coordinates systems have to be kept in synch. This is done
155 in various places using the pizza->m_scroll_x and pizza->m_scroll_y values.
156
157 III)
158
159 Singularly the most broken code in GTK is the code that is supposed to
160 inform subwindows (child windows) about new positions. Very often, duplicate
161 events are sent without changes in size or position, equally often no
162 events are sent at all (All this is due to a bug in the GtkContainer code
163 which got fixed in GTK 1.2.6). For that reason, wxGTK completely ignores
164 GTK's own system and it simply waits for size events for toplevel windows
165 and then iterates down the respective size events to all window. This has
166 the disadvantage that windows might get size events before the GTK widget
167 actually has the reported size. This doesn't normally pose any problem, but
168 the OpenGL drawing routines rely on correct behaviour. Therefore, I have
169 added the m_nativeSizeEvents flag, which is true only for the OpenGL canvas,
170 i.e. the wxGLCanvas will emit a size event, when (and not before) the X11
171 window that is used for OpenGL output really has that size (as reported by
172 GTK).
173
174 IV)
175
176 If someone at some point of time feels the immense desire to have a look at,
177 change or attempt to optimise the Refresh() logic, this person will need an
178 intimate understanding of what "draw" and "expose" events are and what
179 they are used for, in particular when used in connection with GTK's
180 own windowless widgets. Beware.
181
182 V)
183
184 Cursors, too, have been a constant source of pleasure. The main difficulty
185 is that a GdkWindow inherits a cursor if the programmer sets a new cursor
186 for the parent. To prevent this from doing too much harm, I use idle time
187 to set the cursor over and over again, starting from the toplevel windows
188 and ending with the youngest generation (speaking of parent and child windows).
189 Also don't forget that cursors (like much else) are connected to GdkWindows,
190 not GtkWidgets and that the "window" field of a GtkWidget might very well
191 point to the GdkWindow of the parent widget (-> "window-less widget") and
192 that the two obviously have very different meanings.
193
194 */
195
196 //-----------------------------------------------------------------------------
197 // data
198 //-----------------------------------------------------------------------------
199
200 // Don't allow event propagation during drag
201 bool g_blockEventsOnDrag;
202 // Don't allow mouse event propagation during scroll
203 bool g_blockEventsOnScroll;
204 extern wxCursor g_globalCursor;
205
206 // mouse capture state: the window which has it and if the mouse is currently
207 // inside it
208 static wxWindowGTK *g_captureWindow = NULL;
209 static bool g_captureWindowHasMouse = false;
210
211 // The window that currently has focus:
212 static wxWindowGTK *gs_currentFocus = NULL;
213 // The window that is scheduled to get focus in the next event loop iteration
214 // or NULL if there's no pending focus change:
215 static wxWindowGTK *gs_pendingFocus = NULL;
216
217 // the window that has deferred focus-out event pending, if any (see
218 // GTKAddDeferredFocusOut() for details)
219 static wxWindowGTK *gs_deferredFocusOut = NULL;
220
221 // global variables because GTK+ DnD want to have the
222 // mouse event that caused it
223 GdkEvent *g_lastMouseEvent = NULL;
224 int g_lastButtonNumber = 0;
225
226 //-----------------------------------------------------------------------------
227 // debug
228 //-----------------------------------------------------------------------------
229
230 // the trace mask used for the focus debugging messages
231 #define TRACE_FOCUS wxT("focus")
232
233 //-----------------------------------------------------------------------------
234 // missing gdk functions
235 //-----------------------------------------------------------------------------
236
237 void
238 gdk_window_warp_pointer (GdkWindow *window,
239 gint x,
240 gint y)
241 {
242 if (!window)
243 window = gdk_get_default_root_window();
244
245 if (!GDK_WINDOW_DESTROYED(window))
246 {
247 XWarpPointer (GDK_WINDOW_XDISPLAY(window),
248 None, /* not source window -> move from anywhere */
249 GDK_WINDOW_XID(window), /* dest window */
250 0, 0, 0, 0, /* not source window -> move from anywhere */
251 x, y );
252 }
253 }
254
255
256 //-----------------------------------------------------------------------------
257 // "size_request" of m_widget
258 //-----------------------------------------------------------------------------
259
260 extern "C" {
261 static void
262 wxgtk_window_size_request_callback(GtkWidget * WXUNUSED(widget),
263 GtkRequisition *requisition,
264 wxWindow * win)
265 {
266 int w, h;
267 win->GetSize( &w, &h );
268 if (w < 2)
269 w = 2;
270 if (h < 2)
271 h = 2;
272
273 requisition->height = h;
274 requisition->width = w;
275 }
276 }
277
278 //-----------------------------------------------------------------------------
279 // "expose_event" of m_wxwindow
280 //-----------------------------------------------------------------------------
281
282 extern "C" {
283 static gboolean
284 gtk_window_expose_callback( GtkWidget*,
285 GdkEventExpose *gdk_event,
286 wxWindow *win )
287 {
288 if (gdk_event->window == win->GTKGetDrawingWindow())
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 != gtk_widget_get_parent_window(win->m_wxwindow))
308 return false;
309
310 const GtkAllocation& alloc = win->m_wxwindow->allocation;
311 const int x = alloc.x;
312 const int y = alloc.y;
313 const int w = alloc.width;
314 const int h = alloc.height;
315
316 if (w <= 0 || h <= 0)
317 return false;
318
319 if (win->HasFlag(wxBORDER_SIMPLE))
320 {
321 gdk_draw_rectangle(gdk_event->window,
322 widget->style->black_gc, false, x, y, w - 1, h - 1);
323 }
324 else
325 {
326 GtkShadowType shadow = GTK_SHADOW_IN;
327 if (win->HasFlag(wxBORDER_RAISED))
328 shadow = GTK_SHADOW_OUT;
329
330 // Style detail to use
331 const char* detail;
332 if (win->m_widget == win->m_wxwindow)
333 // for non-scrollable wxWindows
334 detail = "entry";
335 else
336 // for scrollable ones
337 detail = "viewport";
338
339 gtk_paint_shadow(
340 win->m_wxwindow->style, gdk_event->window, GTK_STATE_NORMAL,
341 shadow, NULL, wxGTKPrivate::GetEntryWidget(), detail, x, y, w, h);
342 }
343 return false;
344 }
345 }
346
347 //-----------------------------------------------------------------------------
348 // "parent_set" from m_wxwindow
349 //-----------------------------------------------------------------------------
350
351 extern "C" {
352 static void
353 parent_set(GtkWidget* widget, GtkObject* old_parent, wxWindow* win)
354 {
355 if (old_parent)
356 {
357 g_signal_handlers_disconnect_by_func(
358 old_parent, (void*)expose_event_border, win);
359 }
360 if (widget->parent)
361 {
362 g_signal_connect_after(widget->parent, "expose_event",
363 G_CALLBACK(expose_event_border), win);
364 }
365 }
366 }
367 #endif // !__WXUNIVERSAL__
368
369 //-----------------------------------------------------------------------------
370 // "key_press_event" from any window
371 //-----------------------------------------------------------------------------
372
373 // These are used when transforming Ctrl-alpha to ascii values 1-26
374 inline bool wxIsLowerChar(int code)
375 {
376 return (code >= 'a' && code <= 'z' );
377 }
378
379 inline bool wxIsUpperChar(int code)
380 {
381 return (code >= 'A' && code <= 'Z' );
382 }
383
384
385 // set WXTRACE to this to see the key event codes on the console
386 #define TRACE_KEYS wxT("keyevent")
387
388 // translates an X key symbol to WXK_XXX value
389 //
390 // if isChar is true it means that the value returned will be used for EVT_CHAR
391 // event and then we choose the logical WXK_XXX, i.e. '/' for GDK_KP_Divide,
392 // for example, while if it is false it means that the value is going to be
393 // used for KEY_DOWN/UP events and then we translate GDK_KP_Divide to
394 // WXK_NUMPAD_DIVIDE
395 static long wxTranslateKeySymToWXKey(KeySym keysym, bool isChar)
396 {
397 long key_code;
398
399 switch ( keysym )
400 {
401 // Shift, Control and Alt don't generate the CHAR events at all
402 case GDK_Shift_L:
403 case GDK_Shift_R:
404 key_code = isChar ? 0 : WXK_SHIFT;
405 break;
406 case GDK_Control_L:
407 case GDK_Control_R:
408 key_code = isChar ? 0 : WXK_CONTROL;
409 break;
410 case GDK_Meta_L:
411 case GDK_Meta_R:
412 case GDK_Alt_L:
413 case GDK_Alt_R:
414 case GDK_Super_L:
415 case GDK_Super_R:
416 key_code = isChar ? 0 : WXK_ALT;
417 break;
418
419 // neither do the toggle modifies
420 case GDK_Scroll_Lock:
421 key_code = isChar ? 0 : WXK_SCROLL;
422 break;
423
424 case GDK_Caps_Lock:
425 key_code = isChar ? 0 : WXK_CAPITAL;
426 break;
427
428 case GDK_Num_Lock:
429 key_code = isChar ? 0 : WXK_NUMLOCK;
430 break;
431
432
433 // various other special keys
434 case GDK_Menu:
435 key_code = WXK_MENU;
436 break;
437
438 case GDK_Help:
439 key_code = WXK_HELP;
440 break;
441
442 case GDK_BackSpace:
443 key_code = WXK_BACK;
444 break;
445
446 case GDK_ISO_Left_Tab:
447 case GDK_Tab:
448 key_code = WXK_TAB;
449 break;
450
451 case GDK_Linefeed:
452 case GDK_Return:
453 key_code = WXK_RETURN;
454 break;
455
456 case GDK_Clear:
457 key_code = WXK_CLEAR;
458 break;
459
460 case GDK_Pause:
461 key_code = WXK_PAUSE;
462 break;
463
464 case GDK_Select:
465 key_code = WXK_SELECT;
466 break;
467
468 case GDK_Print:
469 key_code = WXK_PRINT;
470 break;
471
472 case GDK_Execute:
473 key_code = WXK_EXECUTE;
474 break;
475
476 case GDK_Escape:
477 key_code = WXK_ESCAPE;
478 break;
479
480 // cursor and other extended keyboard keys
481 case GDK_Delete:
482 key_code = WXK_DELETE;
483 break;
484
485 case GDK_Home:
486 key_code = WXK_HOME;
487 break;
488
489 case GDK_Left:
490 key_code = WXK_LEFT;
491 break;
492
493 case GDK_Up:
494 key_code = WXK_UP;
495 break;
496
497 case GDK_Right:
498 key_code = WXK_RIGHT;
499 break;
500
501 case GDK_Down:
502 key_code = WXK_DOWN;
503 break;
504
505 case GDK_Prior: // == GDK_Page_Up
506 key_code = WXK_PAGEUP;
507 break;
508
509 case GDK_Next: // == GDK_Page_Down
510 key_code = WXK_PAGEDOWN;
511 break;
512
513 case GDK_End:
514 key_code = WXK_END;
515 break;
516
517 case GDK_Begin:
518 key_code = WXK_HOME;
519 break;
520
521 case GDK_Insert:
522 key_code = WXK_INSERT;
523 break;
524
525
526 // numpad keys
527 case GDK_KP_0:
528 case GDK_KP_1:
529 case GDK_KP_2:
530 case GDK_KP_3:
531 case GDK_KP_4:
532 case GDK_KP_5:
533 case GDK_KP_6:
534 case GDK_KP_7:
535 case GDK_KP_8:
536 case GDK_KP_9:
537 key_code = (isChar ? '0' : int(WXK_NUMPAD0)) + keysym - GDK_KP_0;
538 break;
539
540 case GDK_KP_Space:
541 key_code = isChar ? ' ' : int(WXK_NUMPAD_SPACE);
542 break;
543
544 case GDK_KP_Tab:
545 key_code = isChar ? WXK_TAB : WXK_NUMPAD_TAB;
546 break;
547
548 case GDK_KP_Enter:
549 key_code = isChar ? WXK_RETURN : WXK_NUMPAD_ENTER;
550 break;
551
552 case GDK_KP_F1:
553 key_code = isChar ? WXK_F1 : WXK_NUMPAD_F1;
554 break;
555
556 case GDK_KP_F2:
557 key_code = isChar ? WXK_F2 : WXK_NUMPAD_F2;
558 break;
559
560 case GDK_KP_F3:
561 key_code = isChar ? WXK_F3 : WXK_NUMPAD_F3;
562 break;
563
564 case GDK_KP_F4:
565 key_code = isChar ? WXK_F4 : WXK_NUMPAD_F4;
566 break;
567
568 case GDK_KP_Home:
569 key_code = isChar ? WXK_HOME : WXK_NUMPAD_HOME;
570 break;
571
572 case GDK_KP_Left:
573 key_code = isChar ? WXK_LEFT : WXK_NUMPAD_LEFT;
574 break;
575
576 case GDK_KP_Up:
577 key_code = isChar ? WXK_UP : WXK_NUMPAD_UP;
578 break;
579
580 case GDK_KP_Right:
581 key_code = isChar ? WXK_RIGHT : WXK_NUMPAD_RIGHT;
582 break;
583
584 case GDK_KP_Down:
585 key_code = isChar ? WXK_DOWN : WXK_NUMPAD_DOWN;
586 break;
587
588 case GDK_KP_Prior: // == GDK_KP_Page_Up
589 key_code = isChar ? WXK_PAGEUP : WXK_NUMPAD_PAGEUP;
590 break;
591
592 case GDK_KP_Next: // == GDK_KP_Page_Down
593 key_code = isChar ? WXK_PAGEDOWN : WXK_NUMPAD_PAGEDOWN;
594 break;
595
596 case GDK_KP_End:
597 key_code = isChar ? WXK_END : WXK_NUMPAD_END;
598 break;
599
600 case GDK_KP_Begin:
601 key_code = isChar ? WXK_HOME : WXK_NUMPAD_BEGIN;
602 break;
603
604 case GDK_KP_Insert:
605 key_code = isChar ? WXK_INSERT : WXK_NUMPAD_INSERT;
606 break;
607
608 case GDK_KP_Delete:
609 key_code = isChar ? WXK_DELETE : WXK_NUMPAD_DELETE;
610 break;
611
612 case GDK_KP_Equal:
613 key_code = isChar ? '=' : int(WXK_NUMPAD_EQUAL);
614 break;
615
616 case GDK_KP_Multiply:
617 key_code = isChar ? '*' : int(WXK_NUMPAD_MULTIPLY);
618 break;
619
620 case GDK_KP_Add:
621 key_code = isChar ? '+' : int(WXK_NUMPAD_ADD);
622 break;
623
624 case GDK_KP_Separator:
625 // FIXME: what is this?
626 key_code = isChar ? '.' : int(WXK_NUMPAD_SEPARATOR);
627 break;
628
629 case GDK_KP_Subtract:
630 key_code = isChar ? '-' : int(WXK_NUMPAD_SUBTRACT);
631 break;
632
633 case GDK_KP_Decimal:
634 key_code = isChar ? '.' : int(WXK_NUMPAD_DECIMAL);
635 break;
636
637 case GDK_KP_Divide:
638 key_code = isChar ? '/' : int(WXK_NUMPAD_DIVIDE);
639 break;
640
641
642 // function keys
643 case GDK_F1:
644 case GDK_F2:
645 case GDK_F3:
646 case GDK_F4:
647 case GDK_F5:
648 case GDK_F6:
649 case GDK_F7:
650 case GDK_F8:
651 case GDK_F9:
652 case GDK_F10:
653 case GDK_F11:
654 case GDK_F12:
655 key_code = WXK_F1 + keysym - GDK_F1;
656 break;
657
658 default:
659 key_code = 0;
660 }
661
662 return key_code;
663 }
664
665 static inline bool wxIsAsciiKeysym(KeySym ks)
666 {
667 return ks < 256;
668 }
669
670 static void wxFillOtherKeyEventFields(wxKeyEvent& event,
671 wxWindowGTK *win,
672 GdkEventKey *gdk_event)
673 {
674 int x = 0;
675 int y = 0;
676 GdkModifierType state;
677 if (gdk_event->window)
678 gdk_window_get_pointer(gdk_event->window, &x, &y, &state);
679
680 event.SetTimestamp( gdk_event->time );
681 event.SetId(win->GetId());
682 event.m_shiftDown = (gdk_event->state & GDK_SHIFT_MASK) != 0;
683 event.m_controlDown = (gdk_event->state & GDK_CONTROL_MASK) != 0;
684 event.m_altDown = (gdk_event->state & GDK_MOD1_MASK) != 0;
685 event.m_metaDown = (gdk_event->state & GDK_META_MASK) != 0;
686 event.m_rawCode = (wxUint32) gdk_event->keyval;
687 event.m_rawFlags = 0;
688 #if wxUSE_UNICODE
689 event.m_uniChar = gdk_keyval_to_unicode(gdk_event->keyval);
690 #endif
691 wxGetMousePosition( &x, &y );
692 win->ScreenToClient( &x, &y );
693 event.m_x = x;
694 event.m_y = y;
695 event.SetEventObject( win );
696 }
697
698
699 static bool
700 wxTranslateGTKKeyEventToWx(wxKeyEvent& event,
701 wxWindowGTK *win,
702 GdkEventKey *gdk_event)
703 {
704 // VZ: it seems that GDK_KEY_RELEASE event doesn't set event->string
705 // but only event->keyval which is quite useless to us, so remember
706 // the last character from GDK_KEY_PRESS and reuse it as last resort
707 //
708 // NB: should be MT-safe as we're always called from the main thread only
709 static struct
710 {
711 KeySym keysym;
712 long keycode;
713 } s_lastKeyPress = { 0, 0 };
714
715 KeySym keysym = gdk_event->keyval;
716
717 wxLogTrace(TRACE_KEYS, wxT("Key %s event: keysym = %ld"),
718 event.GetEventType() == wxEVT_KEY_UP ? wxT("release")
719 : wxT("press"),
720 keysym);
721
722 long key_code = wxTranslateKeySymToWXKey(keysym, false /* !isChar */);
723
724 if ( !key_code )
725 {
726 // do we have the translation or is it a plain ASCII character?
727 if ( (gdk_event->length == 1) || wxIsAsciiKeysym(keysym) )
728 {
729 // we should use keysym if it is ASCII as X does some translations
730 // like "I pressed while Control is down" => "Ctrl-I" == "TAB"
731 // which we don't want here (but which we do use for OnChar())
732 if ( !wxIsAsciiKeysym(keysym) )
733 {
734 keysym = (KeySym)gdk_event->string[0];
735 }
736
737 // we want to always get the same key code when the same key is
738 // pressed regardless of the state of the modifiers, i.e. on a
739 // standard US keyboard pressing '5' or '%' ('5' key with
740 // Shift) should result in the same key code in OnKeyDown():
741 // '5' (although OnChar() will get either '5' or '%').
742 //
743 // to do it we first translate keysym to keycode (== scan code)
744 // and then back but always using the lower register
745 Display *dpy = (Display *)wxGetDisplay();
746 KeyCode keycode = XKeysymToKeycode(dpy, keysym);
747
748 wxLogTrace(TRACE_KEYS, wxT("\t-> keycode %d"), keycode);
749
750 KeySym keysymNormalized = XKeycodeToKeysym(dpy, keycode, 0);
751
752 // use the normalized, i.e. lower register, keysym if we've
753 // got one
754 key_code = keysymNormalized ? keysymNormalized : keysym;
755
756 // as explained above, we want to have lower register key codes
757 // normally but for the letter keys we want to have the upper ones
758 //
759 // NB: don't use XConvertCase() here, we want to do it for letters
760 // only
761 key_code = toupper(key_code);
762 }
763 else // non ASCII key, what to do?
764 {
765 // by default, ignore it
766 key_code = 0;
767
768 // but if we have cached information from the last KEY_PRESS
769 if ( gdk_event->type == GDK_KEY_RELEASE )
770 {
771 // then reuse it
772 if ( keysym == s_lastKeyPress.keysym )
773 {
774 key_code = s_lastKeyPress.keycode;
775 }
776 }
777 }
778
779 if ( gdk_event->type == GDK_KEY_PRESS )
780 {
781 // remember it to be reused for KEY_UP event later
782 s_lastKeyPress.keysym = keysym;
783 s_lastKeyPress.keycode = key_code;
784 }
785 }
786
787 wxLogTrace(TRACE_KEYS, wxT("\t-> wxKeyCode %ld"), key_code);
788
789 // sending unknown key events doesn't really make sense
790 if ( !key_code )
791 return false;
792
793 // now fill all the other fields
794 wxFillOtherKeyEventFields(event, win, gdk_event);
795
796 event.m_keyCode = key_code;
797 #if wxUSE_UNICODE
798 if ( gdk_event->type == GDK_KEY_PRESS || gdk_event->type == GDK_KEY_RELEASE )
799 {
800 event.m_uniChar = key_code;
801 }
802 #endif
803
804 return true;
805 }
806
807
808 struct wxGtkIMData
809 {
810 GtkIMContext *context;
811 GdkEventKey *lastKeyEvent;
812
813 wxGtkIMData()
814 {
815 context = gtk_im_multicontext_new();
816 lastKeyEvent = NULL;
817 }
818 ~wxGtkIMData()
819 {
820 g_object_unref (context);
821 }
822 };
823
824 extern "C" {
825 static gboolean
826 gtk_window_key_press_callback( GtkWidget *WXUNUSED(widget),
827 GdkEventKey *gdk_event,
828 wxWindow *win )
829 {
830 if (!win->m_hasVMT)
831 return FALSE;
832 if (g_blockEventsOnDrag)
833 return FALSE;
834
835 wxKeyEvent event( wxEVT_KEY_DOWN );
836 bool ret = false;
837 bool return_after_IM = false;
838
839 if( wxTranslateGTKKeyEventToWx(event, win, gdk_event) )
840 {
841 // Emit KEY_DOWN event
842 ret = win->HandleWindowEvent( event );
843 }
844 else
845 {
846 // Return after IM processing as we cannot do
847 // anything with it anyhow.
848 return_after_IM = true;
849 }
850
851 if ((!ret) && (win->m_imData != NULL))
852 {
853 // We should let GTK+ IM filter key event first. According to GTK+ 2.0 API
854 // docs, if IM filter returns true, no further processing should be done.
855 // we should send the key_down event anyway.
856 bool intercepted_by_IM = gtk_im_context_filter_keypress(win->m_imData->context, gdk_event);
857 win->m_imData->lastKeyEvent = NULL;
858 if (intercepted_by_IM)
859 {
860 wxLogTrace(TRACE_KEYS, wxT("Key event intercepted by IM"));
861 return TRUE;
862 }
863 }
864
865 if (return_after_IM)
866 return FALSE;
867
868 #if wxUSE_ACCEL
869 if (!ret)
870 {
871 wxWindowGTK *ancestor = win;
872 while (ancestor)
873 {
874 int command = ancestor->GetAcceleratorTable()->GetCommand( event );
875 if (command != -1)
876 {
877 wxCommandEvent menu_event( wxEVT_COMMAND_MENU_SELECTED, command );
878 ret = ancestor->HandleWindowEvent( menu_event );
879
880 if ( !ret )
881 {
882 // if the accelerator wasn't handled as menu event, try
883 // it as button click (for compatibility with other
884 // platforms):
885 wxCommandEvent button_event( wxEVT_COMMAND_BUTTON_CLICKED, command );
886 ret = ancestor->HandleWindowEvent( button_event );
887 }
888
889 break;
890 }
891 if (ancestor->IsTopLevel())
892 break;
893 ancestor = ancestor->GetParent();
894 }
895 }
896 #endif // wxUSE_ACCEL
897
898 // Only send wxEVT_CHAR event if not processed yet. Thus, ALT-x
899 // will only be sent if it is not in an accelerator table.
900 if (!ret)
901 {
902 long key_code;
903 KeySym keysym = gdk_event->keyval;
904 // Find key code for EVT_CHAR and EVT_CHAR_HOOK events
905 key_code = wxTranslateKeySymToWXKey(keysym, true /* isChar */);
906 if ( !key_code )
907 {
908 if ( wxIsAsciiKeysym(keysym) )
909 {
910 // ASCII key
911 key_code = (unsigned char)keysym;
912 }
913 // gdk_event->string is actually deprecated
914 else if ( gdk_event->length == 1 )
915 {
916 key_code = (unsigned char)gdk_event->string[0];
917 }
918 }
919
920 if ( key_code )
921 {
922 wxLogTrace(TRACE_KEYS, wxT("Char event: %ld"), key_code);
923
924 event.m_keyCode = key_code;
925
926 // To conform to the docs we need to translate Ctrl-alpha
927 // characters to values in the range 1-26.
928 if ( event.ControlDown() &&
929 ( wxIsLowerChar(key_code) || wxIsUpperChar(key_code) ))
930 {
931 if ( wxIsLowerChar(key_code) )
932 event.m_keyCode = key_code - 'a' + 1;
933 if ( wxIsUpperChar(key_code) )
934 event.m_keyCode = key_code - 'A' + 1;
935 #if wxUSE_UNICODE
936 event.m_uniChar = event.m_keyCode;
937 #endif
938 }
939
940 // Implement OnCharHook by checking ancestor top level windows
941 wxWindow *parent = win;
942 while (parent && !parent->IsTopLevel())
943 parent = parent->GetParent();
944 if (parent)
945 {
946 event.SetEventType( wxEVT_CHAR_HOOK );
947 ret = parent->HandleWindowEvent( event );
948 }
949
950 if (!ret)
951 {
952 event.SetEventType(wxEVT_CHAR);
953 ret = win->HandleWindowEvent( event );
954 }
955 }
956 }
957
958 return ret;
959 }
960 }
961
962 extern "C" {
963 static void
964 gtk_wxwindow_commit_cb (GtkIMContext * WXUNUSED(context),
965 const gchar *str,
966 wxWindow *window)
967 {
968 wxKeyEvent event( wxEVT_KEY_DOWN );
969
970 // take modifiers, cursor position, timestamp etc. from the last
971 // key_press_event that was fed into Input Method:
972 if (window->m_imData->lastKeyEvent)
973 {
974 wxFillOtherKeyEventFields(event,
975 window, window->m_imData->lastKeyEvent);
976 }
977 else
978 {
979 event.SetEventObject( window );
980 }
981
982 const wxString data(wxGTK_CONV_BACK_SYS(str));
983 if( data.empty() )
984 return;
985
986 bool ret = false;
987
988 // Implement OnCharHook by checking ancestor top level windows
989 wxWindow *parent = window;
990 while (parent && !parent->IsTopLevel())
991 parent = parent->GetParent();
992
993 for( wxString::const_iterator pstr = data.begin(); pstr != data.end(); ++pstr )
994 {
995 #if wxUSE_UNICODE
996 event.m_uniChar = *pstr;
997 // Backward compatible for ISO-8859-1
998 event.m_keyCode = *pstr < 256 ? event.m_uniChar : 0;
999 wxLogTrace(TRACE_KEYS, wxT("IM sent character '%c'"), event.m_uniChar);
1000 #else
1001 event.m_keyCode = (char)*pstr;
1002 #endif // wxUSE_UNICODE
1003
1004 // To conform to the docs we need to translate Ctrl-alpha
1005 // characters to values in the range 1-26.
1006 if ( event.ControlDown() &&
1007 ( wxIsLowerChar(*pstr) || wxIsUpperChar(*pstr) ))
1008 {
1009 if ( wxIsLowerChar(*pstr) )
1010 event.m_keyCode = *pstr - 'a' + 1;
1011 if ( wxIsUpperChar(*pstr) )
1012 event.m_keyCode = *pstr - 'A' + 1;
1013
1014 event.m_keyCode = *pstr - 'a' + 1;
1015 #if wxUSE_UNICODE
1016 event.m_uniChar = event.m_keyCode;
1017 #endif
1018 }
1019
1020 if (parent)
1021 {
1022 event.SetEventType( wxEVT_CHAR_HOOK );
1023 ret = parent->HandleWindowEvent( event );
1024 }
1025
1026 if (!ret)
1027 {
1028 event.SetEventType(wxEVT_CHAR);
1029 ret = window->HandleWindowEvent( event );
1030 }
1031 }
1032 }
1033 }
1034
1035
1036 //-----------------------------------------------------------------------------
1037 // "key_release_event" from any window
1038 //-----------------------------------------------------------------------------
1039
1040 extern "C" {
1041 static gboolean
1042 gtk_window_key_release_callback( GtkWidget * WXUNUSED(widget),
1043 GdkEventKey *gdk_event,
1044 wxWindowGTK *win )
1045 {
1046 if (!win->m_hasVMT)
1047 return FALSE;
1048
1049 if (g_blockEventsOnDrag)
1050 return FALSE;
1051
1052 wxKeyEvent event( wxEVT_KEY_UP );
1053 if ( !wxTranslateGTKKeyEventToWx(event, win, gdk_event) )
1054 {
1055 // unknown key pressed, ignore (the event would be useless anyhow)
1056 return FALSE;
1057 }
1058
1059 return win->GTKProcessEvent(event);
1060 }
1061 }
1062
1063 // ============================================================================
1064 // the mouse events
1065 // ============================================================================
1066
1067 // ----------------------------------------------------------------------------
1068 // mouse event processing helpers
1069 // ----------------------------------------------------------------------------
1070
1071 // init wxMouseEvent with the info from GdkEventXXX struct
1072 template<typename T> void InitMouseEvent(wxWindowGTK *win,
1073 wxMouseEvent& event,
1074 T *gdk_event)
1075 {
1076 event.SetTimestamp( gdk_event->time );
1077 event.m_shiftDown = (gdk_event->state & GDK_SHIFT_MASK) != 0;
1078 event.m_controlDown = (gdk_event->state & GDK_CONTROL_MASK) != 0;
1079 event.m_altDown = (gdk_event->state & GDK_MOD1_MASK) != 0;
1080 event.m_metaDown = (gdk_event->state & GDK_META_MASK) != 0;
1081 event.m_leftDown = (gdk_event->state & GDK_BUTTON1_MASK) != 0;
1082 event.m_middleDown = (gdk_event->state & GDK_BUTTON2_MASK) != 0;
1083 event.m_rightDown = (gdk_event->state & GDK_BUTTON3_MASK) != 0;
1084 event.m_aux1Down = (gdk_event->state & GDK_BUTTON4_MASK) != 0;
1085 event.m_aux2Down = (gdk_event->state & GDK_BUTTON5_MASK) != 0;
1086
1087 wxPoint pt = win->GetClientAreaOrigin();
1088 event.m_x = (wxCoord)gdk_event->x - pt.x;
1089 event.m_y = (wxCoord)gdk_event->y - pt.y;
1090
1091 if ((win->m_wxwindow) && (win->GetLayoutDirection() == wxLayout_RightToLeft))
1092 {
1093 // origin in the upper right corner
1094 int window_width = win->m_wxwindow->allocation.width;
1095 event.m_x = window_width - event.m_x;
1096 }
1097
1098 event.SetEventObject( win );
1099 event.SetId( win->GetId() );
1100 event.SetTimestamp( gdk_event->time );
1101 }
1102
1103 static void AdjustEventButtonState(wxMouseEvent& event)
1104 {
1105 // GDK reports the old state of the button for a button press event, but
1106 // for compatibility with MSW and common sense we want m_leftDown be TRUE
1107 // for a LEFT_DOWN event, not FALSE, so we will invert
1108 // left/right/middleDown for the corresponding click events
1109
1110 if ((event.GetEventType() == wxEVT_LEFT_DOWN) ||
1111 (event.GetEventType() == wxEVT_LEFT_DCLICK) ||
1112 (event.GetEventType() == wxEVT_LEFT_UP))
1113 {
1114 event.m_leftDown = !event.m_leftDown;
1115 return;
1116 }
1117
1118 if ((event.GetEventType() == wxEVT_MIDDLE_DOWN) ||
1119 (event.GetEventType() == wxEVT_MIDDLE_DCLICK) ||
1120 (event.GetEventType() == wxEVT_MIDDLE_UP))
1121 {
1122 event.m_middleDown = !event.m_middleDown;
1123 return;
1124 }
1125
1126 if ((event.GetEventType() == wxEVT_RIGHT_DOWN) ||
1127 (event.GetEventType() == wxEVT_RIGHT_DCLICK) ||
1128 (event.GetEventType() == wxEVT_RIGHT_UP))
1129 {
1130 event.m_rightDown = !event.m_rightDown;
1131 return;
1132 }
1133 }
1134
1135 // find the window to send the mouse event too
1136 static
1137 wxWindowGTK *FindWindowForMouseEvent(wxWindowGTK *win, wxCoord& x, wxCoord& y)
1138 {
1139 wxCoord xx = x;
1140 wxCoord yy = y;
1141
1142 if (win->m_wxwindow)
1143 {
1144 wxPizza* pizza = WX_PIZZA(win->m_wxwindow);
1145 xx += pizza->m_scroll_x;
1146 yy += pizza->m_scroll_y;
1147 }
1148
1149 wxWindowList::compatibility_iterator node = win->GetChildren().GetFirst();
1150 while (node)
1151 {
1152 wxWindowGTK *child = node->GetData();
1153
1154 node = node->GetNext();
1155 if (!child->IsShown())
1156 continue;
1157
1158 if (child->GTKIsTransparentForMouse())
1159 {
1160 // wxStaticBox is transparent in the box itself
1161 int xx1 = child->m_x;
1162 int yy1 = child->m_y;
1163 int xx2 = child->m_x + child->m_width;
1164 int yy2 = child->m_y + child->m_height;
1165
1166 // left
1167 if (((xx >= xx1) && (xx <= xx1+10) && (yy >= yy1) && (yy <= yy2)) ||
1168 // right
1169 ((xx >= xx2-10) && (xx <= xx2) && (yy >= yy1) && (yy <= yy2)) ||
1170 // top
1171 ((xx >= xx1) && (xx <= xx2) && (yy >= yy1) && (yy <= yy1+10)) ||
1172 // bottom
1173 ((xx >= xx1) && (xx <= xx2) && (yy >= yy2-1) && (yy <= yy2)))
1174 {
1175 win = child;
1176 x -= child->m_x;
1177 y -= child->m_y;
1178 break;
1179 }
1180
1181 }
1182 else
1183 {
1184 if ((child->m_wxwindow == NULL) &&
1185 (child->m_x <= xx) &&
1186 (child->m_y <= yy) &&
1187 (child->m_x+child->m_width >= xx) &&
1188 (child->m_y+child->m_height >= yy))
1189 {
1190 win = child;
1191 x -= child->m_x;
1192 y -= child->m_y;
1193 break;
1194 }
1195 }
1196 }
1197
1198 return win;
1199 }
1200
1201 // ----------------------------------------------------------------------------
1202 // common event handlers helpers
1203 // ----------------------------------------------------------------------------
1204
1205 bool wxWindowGTK::GTKProcessEvent(wxEvent& event) const
1206 {
1207 // nothing special at this level
1208 return HandleWindowEvent(event);
1209 }
1210
1211 bool wxWindowGTK::GTKShouldIgnoreEvent() const
1212 {
1213 return !m_hasVMT || g_blockEventsOnDrag;
1214 }
1215
1216 int wxWindowGTK::GTKCallbackCommonPrologue(GdkEventAny *event) const
1217 {
1218 if (!m_hasVMT)
1219 return FALSE;
1220 if (g_blockEventsOnDrag)
1221 return TRUE;
1222 if (g_blockEventsOnScroll)
1223 return TRUE;
1224
1225 if (!GTKIsOwnWindow(event->window))
1226 return FALSE;
1227
1228 return -1;
1229 }
1230
1231 // overloads for all GDK event types we use here: we need to have this as
1232 // GdkEventXXX can't be implicitly cast to GdkEventAny even if it, in fact,
1233 // derives from it in the sense that the structs have the same layout
1234 #define wxDEFINE_COMMON_PROLOGUE_OVERLOAD(T) \
1235 static int wxGtkCallbackCommonPrologue(T *event, wxWindowGTK *win) \
1236 { \
1237 return win->GTKCallbackCommonPrologue((GdkEventAny *)event); \
1238 }
1239
1240 wxDEFINE_COMMON_PROLOGUE_OVERLOAD(GdkEventButton)
1241 wxDEFINE_COMMON_PROLOGUE_OVERLOAD(GdkEventMotion)
1242 wxDEFINE_COMMON_PROLOGUE_OVERLOAD(GdkEventCrossing)
1243
1244 #undef wxDEFINE_COMMON_PROLOGUE_OVERLOAD
1245
1246 #define wxCOMMON_CALLBACK_PROLOGUE(event, win) \
1247 const int rc = wxGtkCallbackCommonPrologue(event, win); \
1248 if ( rc != -1 ) \
1249 return rc
1250
1251 // all event handlers must have C linkage as they're called from GTK+ C code
1252 extern "C"
1253 {
1254
1255 //-----------------------------------------------------------------------------
1256 // "button_press_event"
1257 //-----------------------------------------------------------------------------
1258
1259 static gboolean
1260 gtk_window_button_press_callback( GtkWidget *widget,
1261 GdkEventButton *gdk_event,
1262 wxWindowGTK *win )
1263 {
1264 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1265
1266 g_lastButtonNumber = gdk_event->button;
1267
1268 // GDK sends surplus button down events
1269 // before a double click event. We
1270 // need to filter these out.
1271 if ((gdk_event->type == GDK_BUTTON_PRESS) && (win->m_wxwindow))
1272 {
1273 GdkEvent *peek_event = gdk_event_peek();
1274 if (peek_event)
1275 {
1276 if ((peek_event->type == GDK_2BUTTON_PRESS) ||
1277 (peek_event->type == GDK_3BUTTON_PRESS))
1278 {
1279 gdk_event_free( peek_event );
1280 return TRUE;
1281 }
1282 else
1283 {
1284 gdk_event_free( peek_event );
1285 }
1286 }
1287 }
1288
1289 wxEventType event_type = wxEVT_NULL;
1290
1291 if ( gdk_event->type == GDK_2BUTTON_PRESS &&
1292 gdk_event->button >= 1 && gdk_event->button <= 3 )
1293 {
1294 // Reset GDK internal timestamp variables in order to disable GDK
1295 // triple click events. GDK will then next time believe no button has
1296 // been clicked just before, and send a normal button click event.
1297 GdkDisplay* display = gtk_widget_get_display (widget);
1298 display->button_click_time[1] = 0;
1299 display->button_click_time[0] = 0;
1300 }
1301
1302 if (gdk_event->button == 1)
1303 {
1304 // note that GDK generates triple click events which are not supported
1305 // by wxWidgets but still have to be passed to the app as otherwise
1306 // clicks would simply go missing
1307 switch (gdk_event->type)
1308 {
1309 // we shouldn't get triple clicks at all for GTK2 because we
1310 // suppress them artificially using the code above but we still
1311 // should map them to something for GTK1 and not just ignore them
1312 // as this would lose clicks
1313 case GDK_3BUTTON_PRESS: // we could also map this to DCLICK...
1314 case GDK_BUTTON_PRESS:
1315 event_type = wxEVT_LEFT_DOWN;
1316 break;
1317
1318 case GDK_2BUTTON_PRESS:
1319 event_type = wxEVT_LEFT_DCLICK;
1320 break;
1321
1322 default:
1323 // just to silence gcc warnings
1324 ;
1325 }
1326 }
1327 else if (gdk_event->button == 2)
1328 {
1329 switch (gdk_event->type)
1330 {
1331 case GDK_3BUTTON_PRESS:
1332 case GDK_BUTTON_PRESS:
1333 event_type = wxEVT_MIDDLE_DOWN;
1334 break;
1335
1336 case GDK_2BUTTON_PRESS:
1337 event_type = wxEVT_MIDDLE_DCLICK;
1338 break;
1339
1340 default:
1341 ;
1342 }
1343 }
1344 else if (gdk_event->button == 3)
1345 {
1346 switch (gdk_event->type)
1347 {
1348 case GDK_3BUTTON_PRESS:
1349 case GDK_BUTTON_PRESS:
1350 event_type = wxEVT_RIGHT_DOWN;
1351 break;
1352
1353 case GDK_2BUTTON_PRESS:
1354 event_type = wxEVT_RIGHT_DCLICK;
1355 break;
1356
1357 default:
1358 ;
1359 }
1360 }
1361
1362 if ( event_type == wxEVT_NULL )
1363 {
1364 // unknown mouse button or click type
1365 return FALSE;
1366 }
1367
1368 g_lastMouseEvent = (GdkEvent*) gdk_event;
1369
1370 wxMouseEvent event( event_type );
1371 InitMouseEvent( win, event, gdk_event );
1372
1373 AdjustEventButtonState(event);
1374
1375 // find the correct window to send the event to: it may be a different one
1376 // from the one which got it at GTK+ level because some controls don't have
1377 // their own X window and thus cannot get any events.
1378 if ( !g_captureWindow )
1379 win = FindWindowForMouseEvent(win, event.m_x, event.m_y);
1380
1381 // reset the event object and id in case win changed.
1382 event.SetEventObject( win );
1383 event.SetId( win->GetId() );
1384
1385 bool ret = win->GTKProcessEvent( event );
1386 g_lastMouseEvent = NULL;
1387 if ( ret )
1388 return TRUE;
1389
1390 if ((event_type == wxEVT_LEFT_DOWN) && !win->IsOfStandardClass() &&
1391 (gs_currentFocus != win) /* && win->IsFocusable() */)
1392 {
1393 win->SetFocus();
1394 }
1395
1396 if (event_type == wxEVT_RIGHT_DOWN)
1397 {
1398 // generate a "context menu" event: this is similar to right mouse
1399 // click under many GUIs except that it is generated differently
1400 // (right up under MSW, ctrl-click under Mac, right down here) and
1401 //
1402 // (a) it's a command event and so is propagated to the parent
1403 // (b) under some ports it can be generated from kbd too
1404 // (c) it uses screen coords (because of (a))
1405 wxContextMenuEvent evtCtx(
1406 wxEVT_CONTEXT_MENU,
1407 win->GetId(),
1408 win->ClientToScreen(event.GetPosition()));
1409 evtCtx.SetEventObject(win);
1410 return win->GTKProcessEvent(evtCtx);
1411 }
1412
1413 return FALSE;
1414 }
1415
1416 //-----------------------------------------------------------------------------
1417 // "button_release_event"
1418 //-----------------------------------------------------------------------------
1419
1420 static gboolean
1421 gtk_window_button_release_callback( GtkWidget *WXUNUSED(widget),
1422 GdkEventButton *gdk_event,
1423 wxWindowGTK *win )
1424 {
1425 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1426
1427 g_lastButtonNumber = 0;
1428
1429 wxEventType event_type = wxEVT_NULL;
1430
1431 switch (gdk_event->button)
1432 {
1433 case 1:
1434 event_type = wxEVT_LEFT_UP;
1435 break;
1436
1437 case 2:
1438 event_type = wxEVT_MIDDLE_UP;
1439 break;
1440
1441 case 3:
1442 event_type = wxEVT_RIGHT_UP;
1443 break;
1444
1445 default:
1446 // unknown button, don't process
1447 return FALSE;
1448 }
1449
1450 g_lastMouseEvent = (GdkEvent*) gdk_event;
1451
1452 wxMouseEvent event( event_type );
1453 InitMouseEvent( win, event, gdk_event );
1454
1455 AdjustEventButtonState(event);
1456
1457 if ( !g_captureWindow )
1458 win = FindWindowForMouseEvent(win, event.m_x, event.m_y);
1459
1460 // reset the event object and id in case win changed.
1461 event.SetEventObject( win );
1462 event.SetId( win->GetId() );
1463
1464 bool ret = win->GTKProcessEvent(event);
1465
1466 g_lastMouseEvent = NULL;
1467
1468 return ret;
1469 }
1470
1471 //-----------------------------------------------------------------------------
1472 // "motion_notify_event"
1473 //-----------------------------------------------------------------------------
1474
1475 static gboolean
1476 gtk_window_motion_notify_callback( GtkWidget * WXUNUSED(widget),
1477 GdkEventMotion *gdk_event,
1478 wxWindowGTK *win )
1479 {
1480 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1481
1482 if (gdk_event->is_hint)
1483 {
1484 int x = 0;
1485 int y = 0;
1486 GdkModifierType state;
1487 gdk_window_get_pointer(gdk_event->window, &x, &y, &state);
1488 gdk_event->x = x;
1489 gdk_event->y = y;
1490 }
1491
1492 g_lastMouseEvent = (GdkEvent*) gdk_event;
1493
1494 wxMouseEvent event( wxEVT_MOTION );
1495 InitMouseEvent(win, event, gdk_event);
1496
1497 if ( g_captureWindow )
1498 {
1499 // synthesise a mouse enter or leave event if needed
1500 GdkWindow *winUnderMouse = gdk_window_at_pointer(NULL, NULL);
1501 // This seems to be necessary and actually been added to
1502 // GDK itself in version 2.0.X
1503 gdk_flush();
1504
1505 bool hasMouse = winUnderMouse == gdk_event->window;
1506 if ( hasMouse != g_captureWindowHasMouse )
1507 {
1508 // the mouse changed window
1509 g_captureWindowHasMouse = hasMouse;
1510
1511 wxMouseEvent eventM(g_captureWindowHasMouse ? wxEVT_ENTER_WINDOW
1512 : wxEVT_LEAVE_WINDOW);
1513 InitMouseEvent(win, eventM, gdk_event);
1514 eventM.SetEventObject(win);
1515 win->GTKProcessEvent(eventM);
1516 }
1517 }
1518 else // no capture
1519 {
1520 win = FindWindowForMouseEvent(win, event.m_x, event.m_y);
1521
1522 // reset the event object and id in case win changed.
1523 event.SetEventObject( win );
1524 event.SetId( win->GetId() );
1525 }
1526
1527 if ( !g_captureWindow )
1528 {
1529 wxSetCursorEvent cevent( event.m_x, event.m_y );
1530 if (win->GTKProcessEvent( cevent ))
1531 {
1532 win->SetCursor( cevent.GetCursor() );
1533 }
1534 }
1535
1536 bool ret = win->GTKProcessEvent(event);
1537
1538 g_lastMouseEvent = NULL;
1539
1540 return ret;
1541 }
1542
1543 //-----------------------------------------------------------------------------
1544 // "scroll_event" (mouse wheel event)
1545 //-----------------------------------------------------------------------------
1546
1547 static gboolean
1548 window_scroll_event_hscrollbar(GtkWidget*, GdkEventScroll* gdk_event, wxWindow* win)
1549 {
1550 if (gdk_event->direction != GDK_SCROLL_LEFT &&
1551 gdk_event->direction != GDK_SCROLL_RIGHT)
1552 {
1553 return false;
1554 }
1555
1556 wxMouseEvent event(wxEVT_MOUSEWHEEL);
1557 InitMouseEvent(win, event, gdk_event);
1558
1559 GtkRange *range = win->m_scrollBar[wxWindow::ScrollDir_Horz];
1560 if (!range) return FALSE;
1561
1562 if (range && GTK_WIDGET_VISIBLE (range))
1563 {
1564 GtkAdjustment *adj = range->adjustment;
1565 gdouble delta = adj->step_increment * 3;
1566 if (gdk_event->direction == GDK_SCROLL_LEFT)
1567 delta = -delta;
1568
1569 gdouble new_value = CLAMP (adj->value + delta, adj->lower, adj->upper - adj->page_size);
1570
1571 gtk_adjustment_set_value (adj, new_value);
1572
1573 return TRUE;
1574 }
1575
1576 return FALSE;
1577 }
1578
1579 static gboolean
1580 window_scroll_event(GtkWidget*, GdkEventScroll* gdk_event, wxWindow* win)
1581 {
1582 if (gdk_event->direction != GDK_SCROLL_UP &&
1583 gdk_event->direction != GDK_SCROLL_DOWN)
1584 {
1585 return false;
1586 }
1587
1588 wxMouseEvent event(wxEVT_MOUSEWHEEL);
1589 InitMouseEvent(win, event, gdk_event);
1590
1591 // FIXME: Get these values from GTK or GDK
1592 event.m_linesPerAction = 3;
1593 event.m_wheelDelta = 120;
1594 if (gdk_event->direction == GDK_SCROLL_UP)
1595 event.m_wheelRotation = 120;
1596 else
1597 event.m_wheelRotation = -120;
1598
1599 if (win->GTKProcessEvent(event))
1600 return TRUE;
1601
1602 GtkRange *range = win->m_scrollBar[wxWindow::ScrollDir_Vert];
1603 if (!range) return FALSE;
1604
1605 if (range && GTK_WIDGET_VISIBLE (range))
1606 {
1607 GtkAdjustment *adj = range->adjustment;
1608 gdouble delta = adj->step_increment * 3;
1609 if (gdk_event->direction == GDK_SCROLL_UP)
1610 delta = -delta;
1611
1612 gdouble new_value = CLAMP (adj->value + delta, adj->lower, adj->upper - adj->page_size);
1613
1614 gtk_adjustment_set_value (adj, new_value);
1615
1616 return TRUE;
1617 }
1618
1619 return FALSE;
1620 }
1621
1622 //-----------------------------------------------------------------------------
1623 // "popup-menu"
1624 //-----------------------------------------------------------------------------
1625
1626 static gboolean wxgtk_window_popup_menu_callback(GtkWidget*, wxWindowGTK* win)
1627 {
1628 wxContextMenuEvent event(wxEVT_CONTEXT_MENU, win->GetId(), wxPoint(-1, -1));
1629 event.SetEventObject(win);
1630 return win->GTKProcessEvent(event);
1631 }
1632
1633 //-----------------------------------------------------------------------------
1634 // "focus_in_event"
1635 //-----------------------------------------------------------------------------
1636
1637 static gboolean
1638 gtk_window_focus_in_callback( GtkWidget * WXUNUSED(widget),
1639 GdkEventFocus *WXUNUSED(event),
1640 wxWindowGTK *win )
1641 {
1642 return win->GTKHandleFocusIn();
1643 }
1644
1645 //-----------------------------------------------------------------------------
1646 // "focus_out_event"
1647 //-----------------------------------------------------------------------------
1648
1649 static gboolean
1650 gtk_window_focus_out_callback( GtkWidget * WXUNUSED(widget),
1651 GdkEventFocus * WXUNUSED(gdk_event),
1652 wxWindowGTK *win )
1653 {
1654 return win->GTKHandleFocusOut();
1655 }
1656
1657 //-----------------------------------------------------------------------------
1658 // "focus"
1659 //-----------------------------------------------------------------------------
1660
1661 static gboolean
1662 wx_window_focus_callback(GtkWidget *widget,
1663 GtkDirectionType WXUNUSED(direction),
1664 wxWindowGTK *win)
1665 {
1666 // the default handler for focus signal in GtkScrolledWindow sets
1667 // focus to the window itself even if it doesn't accept focus, i.e. has no
1668 // GTK_CAN_FOCUS in its style -- work around this by forcibly preventing
1669 // the signal from reaching gtk_scrolled_window_focus() if we don't have
1670 // any children which might accept focus (we know we don't accept the focus
1671 // ourselves as this signal is only connected in this case)
1672 if ( win->GetChildren().empty() )
1673 g_signal_stop_emission_by_name(widget, "focus");
1674
1675 // we didn't change the focus
1676 return FALSE;
1677 }
1678
1679 //-----------------------------------------------------------------------------
1680 // "enter_notify_event"
1681 //-----------------------------------------------------------------------------
1682
1683 static gboolean
1684 gtk_window_enter_callback( GtkWidget *widget,
1685 GdkEventCrossing *gdk_event,
1686 wxWindowGTK *win )
1687 {
1688 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1689
1690 // Event was emitted after a grab
1691 if (gdk_event->mode != GDK_CROSSING_NORMAL) return FALSE;
1692
1693 int x = 0;
1694 int y = 0;
1695 GdkModifierType state = (GdkModifierType)0;
1696
1697 gdk_window_get_pointer( widget->window, &x, &y, &state );
1698
1699 wxMouseEvent event( wxEVT_ENTER_WINDOW );
1700 InitMouseEvent(win, event, gdk_event);
1701 wxPoint pt = win->GetClientAreaOrigin();
1702 event.m_x = x + pt.x;
1703 event.m_y = y + pt.y;
1704
1705 if ( !g_captureWindow )
1706 {
1707 wxSetCursorEvent cevent( event.m_x, event.m_y );
1708 if (win->GTKProcessEvent( cevent ))
1709 {
1710 win->SetCursor( cevent.GetCursor() );
1711 }
1712 }
1713
1714 return win->GTKProcessEvent(event);
1715 }
1716
1717 //-----------------------------------------------------------------------------
1718 // "leave_notify_event"
1719 //-----------------------------------------------------------------------------
1720
1721 static gboolean
1722 gtk_window_leave_callback( GtkWidget *widget,
1723 GdkEventCrossing *gdk_event,
1724 wxWindowGTK *win )
1725 {
1726 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1727
1728 // Event was emitted after an ungrab
1729 if (gdk_event->mode != GDK_CROSSING_NORMAL) return FALSE;
1730
1731 wxMouseEvent event( wxEVT_LEAVE_WINDOW );
1732
1733 int x = 0;
1734 int y = 0;
1735 GdkModifierType state = (GdkModifierType)0;
1736
1737 gdk_window_get_pointer( widget->window, &x, &y, &state );
1738
1739 InitMouseEvent(win, event, gdk_event);
1740
1741 return win->GTKProcessEvent(event);
1742 }
1743
1744 //-----------------------------------------------------------------------------
1745 // "value_changed" from scrollbar
1746 //-----------------------------------------------------------------------------
1747
1748 static void
1749 gtk_scrollbar_value_changed(GtkRange* range, wxWindow* win)
1750 {
1751 wxEventType eventType = win->GTKGetScrollEventType(range);
1752 if (eventType != wxEVT_NULL)
1753 {
1754 // Convert scroll event type to scrollwin event type
1755 eventType += wxEVT_SCROLLWIN_TOP - wxEVT_SCROLL_TOP;
1756
1757 // find the scrollbar which generated the event
1758 wxWindowGTK::ScrollDir dir = win->ScrollDirFromRange(range);
1759
1760 // generate the corresponding wx event
1761 const int orient = wxWindow::OrientFromScrollDir(dir);
1762 wxScrollWinEvent event(eventType, win->GetScrollPos(orient), orient);
1763 event.SetEventObject(win);
1764
1765 win->GTKProcessEvent(event);
1766 }
1767 }
1768
1769 //-----------------------------------------------------------------------------
1770 // "button_press_event" from scrollbar
1771 //-----------------------------------------------------------------------------
1772
1773 static gboolean
1774 gtk_scrollbar_button_press_event(GtkRange*, GdkEventButton*, wxWindow* win)
1775 {
1776 g_blockEventsOnScroll = true;
1777 win->m_mouseButtonDown = true;
1778
1779 return false;
1780 }
1781
1782 //-----------------------------------------------------------------------------
1783 // "event_after" from scrollbar
1784 //-----------------------------------------------------------------------------
1785
1786 static void
1787 gtk_scrollbar_event_after(GtkRange* range, GdkEvent* event, wxWindow* win)
1788 {
1789 if (event->type == GDK_BUTTON_RELEASE)
1790 {
1791 g_signal_handlers_block_by_func(range, (void*)gtk_scrollbar_event_after, win);
1792
1793 const int orient = wxWindow::OrientFromScrollDir(
1794 win->ScrollDirFromRange(range));
1795 wxScrollWinEvent evt(wxEVT_SCROLLWIN_THUMBRELEASE,
1796 win->GetScrollPos(orient), orient);
1797 evt.SetEventObject(win);
1798 win->GTKProcessEvent(evt);
1799 }
1800 }
1801
1802 //-----------------------------------------------------------------------------
1803 // "button_release_event" from scrollbar
1804 //-----------------------------------------------------------------------------
1805
1806 static gboolean
1807 gtk_scrollbar_button_release_event(GtkRange* range, GdkEventButton*, wxWindow* win)
1808 {
1809 g_blockEventsOnScroll = false;
1810 win->m_mouseButtonDown = false;
1811 // If thumb tracking
1812 if (win->m_isScrolling)
1813 {
1814 win->m_isScrolling = false;
1815 // Hook up handler to send thumb release event after this emission is finished.
1816 // To allow setting scroll position from event handler, sending event must
1817 // be deferred until after the GtkRange handler for this signal has run
1818 g_signal_handlers_unblock_by_func(range, (void*)gtk_scrollbar_event_after, win);
1819 }
1820
1821 return false;
1822 }
1823
1824 //-----------------------------------------------------------------------------
1825 // "realize" from m_widget
1826 //-----------------------------------------------------------------------------
1827
1828 static void
1829 gtk_window_realized_callback(GtkWidget* widget, wxWindow* win)
1830 {
1831 if (win->m_imData)
1832 {
1833 gtk_im_context_set_client_window( win->m_imData->context,
1834 win->m_wxwindow ? win->GTKGetDrawingWindow() : widget->window);
1835 }
1836
1837 // We cannot set colours and fonts before the widget
1838 // been realized, so we do this directly after realization
1839 // or otherwise in idle time
1840
1841 if (win->m_needsStyleChange)
1842 {
1843 win->SetBackgroundStyle(win->GetBackgroundStyle());
1844 win->m_needsStyleChange = false;
1845 }
1846
1847 wxWindowCreateEvent event( win );
1848 event.SetEventObject( win );
1849 win->GTKProcessEvent( event );
1850 }
1851
1852 //-----------------------------------------------------------------------------
1853 // "size_allocate" from m_wxwindow or m_widget
1854 //-----------------------------------------------------------------------------
1855
1856 static void
1857 size_allocate(GtkWidget*, GtkAllocation* alloc, wxWindow* win)
1858 {
1859 int w = alloc->width;
1860 int h = alloc->height;
1861 if (win->m_wxwindow)
1862 {
1863 int border_x, border_y;
1864 WX_PIZZA(win->m_wxwindow)->get_border_widths(border_x, border_y);
1865 w -= 2 * border_x;
1866 h -= 2 * border_y;
1867 if (w < 0) w = 0;
1868 if (h < 0) h = 0;
1869 }
1870 if (win->m_oldClientWidth != w || win->m_oldClientHeight != h)
1871 {
1872 win->m_oldClientWidth = w;
1873 win->m_oldClientHeight = h;
1874 // this callback can be connected to m_wxwindow,
1875 // so always get size from m_widget->allocation
1876 win->m_width = win->m_widget->allocation.width;
1877 win->m_height = win->m_widget->allocation.height;
1878 if (!win->m_nativeSizeEvent)
1879 {
1880 wxSizeEvent event(win->GetSize(), win->GetId());
1881 event.SetEventObject(win);
1882 win->GTKProcessEvent(event);
1883 }
1884 }
1885 }
1886
1887 //-----------------------------------------------------------------------------
1888 // "grab_broken"
1889 //-----------------------------------------------------------------------------
1890
1891 #if GTK_CHECK_VERSION(2, 8, 0)
1892 static gboolean
1893 gtk_window_grab_broken( GtkWidget*,
1894 GdkEventGrabBroken *event,
1895 wxWindow *win )
1896 {
1897 // Mouse capture has been lost involuntarily, notify the application
1898 if(!event->keyboard && wxWindow::GetCapture() == win)
1899 {
1900 wxMouseCaptureLostEvent evt( win->GetId() );
1901 evt.SetEventObject( win );
1902 win->HandleWindowEvent( evt );
1903 }
1904 return false;
1905 }
1906 #endif
1907
1908 //-----------------------------------------------------------------------------
1909 // "style_set"
1910 //-----------------------------------------------------------------------------
1911
1912 static
1913 void gtk_window_style_set_callback( GtkWidget *WXUNUSED(widget),
1914 GtkStyle *previous_style,
1915 wxWindow* win )
1916 {
1917 if (win && previous_style)
1918 {
1919 wxSysColourChangedEvent event;
1920 event.SetEventObject(win);
1921
1922 win->GTKProcessEvent( event );
1923 }
1924 }
1925
1926 } // extern "C"
1927
1928 // ----------------------------------------------------------------------------
1929 // this wxWindowBase function is implemented here (in platform-specific file)
1930 // because it is static and so couldn't be made virtual
1931 // ----------------------------------------------------------------------------
1932
1933 wxWindow *wxWindowBase::DoFindFocus()
1934 {
1935 wxWindowGTK *focus = gs_pendingFocus ? gs_pendingFocus : gs_currentFocus;
1936 // the cast is necessary when we compile in wxUniversal mode
1937 return static_cast<wxWindow*>(focus);
1938 }
1939
1940 void wxWindowGTK::AddChildGTK(wxWindowGTK* child)
1941 {
1942 wxASSERT_MSG(m_wxwindow, "Cannot add a child to a window without a client area");
1943
1944 // the window might have been scrolled already, we
1945 // have to adapt the position
1946 wxPizza* pizza = WX_PIZZA(m_wxwindow);
1947 child->m_x += pizza->m_scroll_x;
1948 child->m_y += pizza->m_scroll_y;
1949
1950 gtk_widget_set_size_request(
1951 child->m_widget, child->m_width, child->m_height);
1952 pizza->put(child->m_widget, child->m_x, child->m_y);
1953 }
1954
1955 //-----------------------------------------------------------------------------
1956 // global functions
1957 //-----------------------------------------------------------------------------
1958
1959 wxWindow *wxGetActiveWindow()
1960 {
1961 return wxWindow::FindFocus();
1962 }
1963
1964
1965 wxMouseState wxGetMouseState()
1966 {
1967 wxMouseState ms;
1968
1969 gint x;
1970 gint y;
1971 GdkModifierType mask;
1972
1973 gdk_window_get_pointer(NULL, &x, &y, &mask);
1974
1975 ms.SetX(x);
1976 ms.SetY(y);
1977 ms.SetLeftDown((mask & GDK_BUTTON1_MASK) != 0);
1978 ms.SetMiddleDown((mask & GDK_BUTTON2_MASK) != 0);
1979 ms.SetRightDown((mask & GDK_BUTTON3_MASK) != 0);
1980 ms.SetAux1Down((mask & GDK_BUTTON4_MASK) != 0);
1981 ms.SetAux2Down((mask & GDK_BUTTON5_MASK) != 0);
1982
1983 ms.SetControlDown((mask & GDK_CONTROL_MASK) != 0);
1984 ms.SetShiftDown((mask & GDK_SHIFT_MASK) != 0);
1985 ms.SetAltDown((mask & GDK_MOD1_MASK) != 0);
1986 ms.SetMetaDown((mask & GDK_META_MASK) != 0);
1987
1988 return ms;
1989 }
1990
1991 //-----------------------------------------------------------------------------
1992 // wxWindowGTK
1993 //-----------------------------------------------------------------------------
1994
1995 // in wxUniv/MSW this class is abstract because it doesn't have DoPopupMenu()
1996 // method
1997 #ifdef __WXUNIVERSAL__
1998 IMPLEMENT_ABSTRACT_CLASS(wxWindowGTK, wxWindowBase)
1999 #else // __WXGTK__
2000 IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxWindowBase)
2001 #endif // __WXUNIVERSAL__/__WXGTK__
2002
2003 void wxWindowGTK::Init()
2004 {
2005 // GTK specific
2006 m_widget = NULL;
2007 m_wxwindow = NULL;
2008 m_focusWidget = NULL;
2009
2010 // position/size
2011 m_x = 0;
2012 m_y = 0;
2013 m_width = 0;
2014 m_height = 0;
2015
2016 m_hasVMT = false;
2017
2018 m_showOnIdle = false;
2019
2020 m_noExpose = false;
2021 m_nativeSizeEvent = false;
2022
2023 m_isScrolling = false;
2024 m_mouseButtonDown = false;
2025
2026 // initialize scrolling stuff
2027 for ( int dir = 0; dir < ScrollDir_Max; dir++ )
2028 {
2029 m_scrollBar[dir] = NULL;
2030 m_scrollPos[dir] = 0;
2031 }
2032
2033 m_oldClientWidth =
2034 m_oldClientHeight = 0;
2035
2036 m_clipPaintRegion = false;
2037
2038 m_needsStyleChange = false;
2039
2040 m_cursor = *wxSTANDARD_CURSOR;
2041
2042 m_imData = NULL;
2043 m_dirtyTabOrder = false;
2044 }
2045
2046 wxWindowGTK::wxWindowGTK()
2047 {
2048 Init();
2049 }
2050
2051 wxWindowGTK::wxWindowGTK( wxWindow *parent,
2052 wxWindowID id,
2053 const wxPoint &pos,
2054 const wxSize &size,
2055 long style,
2056 const wxString &name )
2057 {
2058 Init();
2059
2060 Create( parent, id, pos, size, style, name );
2061 }
2062
2063 bool wxWindowGTK::Create( wxWindow *parent,
2064 wxWindowID id,
2065 const wxPoint &pos,
2066 const wxSize &size,
2067 long style,
2068 const wxString &name )
2069 {
2070 // Get default border
2071 wxBorder border = GetBorder(style);
2072
2073 style &= ~wxBORDER_MASK;
2074 style |= border;
2075
2076 if (!PreCreation( parent, pos, size ) ||
2077 !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
2078 {
2079 wxFAIL_MSG( wxT("wxWindowGTK creation failed") );
2080 return false;
2081 }
2082
2083 // We should accept the native look
2084 #if 0
2085 GtkScrolledWindowClass *scroll_class = GTK_SCROLLED_WINDOW_CLASS( GTK_OBJECT_GET_CLASS(m_widget) );
2086 scroll_class->scrollbar_spacing = 0;
2087 #endif
2088
2089
2090 m_wxwindow = wxPizza::New(m_windowStyle);
2091 #ifndef __WXUNIVERSAL__
2092 if (HasFlag(wxPizza::BORDER_STYLES))
2093 {
2094 g_signal_connect(m_wxwindow, "parent_set",
2095 G_CALLBACK(parent_set), this);
2096 }
2097 #endif
2098 if (!HasFlag(wxHSCROLL) && !HasFlag(wxVSCROLL))
2099 m_widget = m_wxwindow;
2100 else
2101 {
2102 m_widget = gtk_scrolled_window_new( NULL, NULL );
2103
2104 GtkScrolledWindow *scrolledWindow = GTK_SCROLLED_WINDOW(m_widget);
2105
2106 // There is a conflict with default bindings at GTK+
2107 // level between scrolled windows and notebooks both of which want to use
2108 // Ctrl-PageUp/Down: scrolled windows for scrolling in the horizontal
2109 // direction and notebooks for changing pages -- we decide that if we don't
2110 // have wxHSCROLL style we can safely sacrifice horizontal scrolling if it
2111 // means we can get working keyboard navigation in notebooks
2112 if ( !HasFlag(wxHSCROLL) )
2113 {
2114 GtkBindingSet *
2115 bindings = gtk_binding_set_by_class(G_OBJECT_GET_CLASS(m_widget));
2116 if ( bindings )
2117 {
2118 gtk_binding_entry_remove(bindings, GDK_Page_Up, GDK_CONTROL_MASK);
2119 gtk_binding_entry_remove(bindings, GDK_Page_Down, GDK_CONTROL_MASK);
2120 }
2121 }
2122
2123 if (HasFlag(wxALWAYS_SHOW_SB))
2124 {
2125 gtk_scrolled_window_set_policy( scrolledWindow, GTK_POLICY_ALWAYS, GTK_POLICY_ALWAYS );
2126
2127 scrolledWindow->hscrollbar_visible = TRUE;
2128 scrolledWindow->vscrollbar_visible = TRUE;
2129 }
2130 else
2131 {
2132 gtk_scrolled_window_set_policy( scrolledWindow, GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
2133 }
2134
2135 m_scrollBar[ScrollDir_Horz] = GTK_RANGE(scrolledWindow->hscrollbar);
2136 m_scrollBar[ScrollDir_Vert] = GTK_RANGE(scrolledWindow->vscrollbar);
2137 if (GetLayoutDirection() == wxLayout_RightToLeft)
2138 gtk_range_set_inverted( m_scrollBar[ScrollDir_Horz], TRUE );
2139
2140 gtk_container_add( GTK_CONTAINER(m_widget), m_wxwindow );
2141
2142 // connect various scroll-related events
2143 for ( int dir = 0; dir < ScrollDir_Max; dir++ )
2144 {
2145 // these handlers block mouse events to any window during scrolling
2146 // such as motion events and prevent GTK and wxWidgets from fighting
2147 // over where the slider should be
2148 g_signal_connect(m_scrollBar[dir], "button_press_event",
2149 G_CALLBACK(gtk_scrollbar_button_press_event), this);
2150 g_signal_connect(m_scrollBar[dir], "button_release_event",
2151 G_CALLBACK(gtk_scrollbar_button_release_event), this);
2152
2153 gulong handler_id = g_signal_connect(m_scrollBar[dir], "event_after",
2154 G_CALLBACK(gtk_scrollbar_event_after), this);
2155 g_signal_handler_block(m_scrollBar[dir], handler_id);
2156
2157 // these handlers get notified when scrollbar slider moves
2158 g_signal_connect_after(m_scrollBar[dir], "value_changed",
2159 G_CALLBACK(gtk_scrollbar_value_changed), this);
2160 }
2161
2162 gtk_widget_show( m_wxwindow );
2163 }
2164 g_object_ref(m_widget);
2165
2166 if (m_parent)
2167 m_parent->DoAddChild( this );
2168
2169 m_focusWidget = m_wxwindow;
2170
2171 SetCanFocus(AcceptsFocus());
2172
2173 PostCreation();
2174
2175 return true;
2176 }
2177
2178 wxWindowGTK::~wxWindowGTK()
2179 {
2180 SendDestroyEvent();
2181
2182 if (gs_currentFocus == this)
2183 gs_currentFocus = NULL;
2184 if (gs_pendingFocus == this)
2185 gs_pendingFocus = NULL;
2186
2187 if ( gs_deferredFocusOut == this )
2188 gs_deferredFocusOut = NULL;
2189
2190 m_hasVMT = false;
2191
2192 // destroy children before destroying this window itself
2193 DestroyChildren();
2194
2195 // unhook focus handlers to prevent stray events being
2196 // propagated to this (soon to be) dead object
2197 if (m_focusWidget != NULL)
2198 {
2199 g_signal_handlers_disconnect_by_func (m_focusWidget,
2200 (gpointer) gtk_window_focus_in_callback,
2201 this);
2202 g_signal_handlers_disconnect_by_func (m_focusWidget,
2203 (gpointer) gtk_window_focus_out_callback,
2204 this);
2205 }
2206
2207 if (m_widget)
2208 Show( false );
2209
2210 // delete before the widgets to avoid a crash on solaris
2211 delete m_imData;
2212
2213 if (m_widget)
2214 {
2215 // Note that gtk_widget_destroy() does not destroy the widget, it just
2216 // emits the "destroy" signal. The widget is not actually destroyed
2217 // until its reference count drops to zero.
2218 gtk_widget_destroy(m_widget);
2219 // Release our reference, should be the last one
2220 g_object_unref(m_widget);
2221 m_widget = NULL;
2222 }
2223 m_wxwindow = NULL;
2224 }
2225
2226 bool wxWindowGTK::PreCreation( wxWindowGTK *parent, const wxPoint &pos, const wxSize &size )
2227 {
2228 if ( GTKNeedsParent() )
2229 {
2230 wxCHECK_MSG( parent, false, wxT("Must have non-NULL parent") );
2231 }
2232
2233 // Use either the given size, or the default if -1 is given.
2234 // See wxWindowBase for these functions.
2235 m_width = WidthDefault(size.x) ;
2236 m_height = HeightDefault(size.y);
2237
2238 m_x = (int)pos.x;
2239 m_y = (int)pos.y;
2240
2241 return true;
2242 }
2243
2244 void wxWindowGTK::PostCreation()
2245 {
2246 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
2247
2248 if (m_wxwindow)
2249 {
2250 if (!m_noExpose)
2251 {
2252 // these get reported to wxWidgets -> wxPaintEvent
2253
2254 g_signal_connect (m_wxwindow, "expose_event",
2255 G_CALLBACK (gtk_window_expose_callback), this);
2256
2257 if (GetLayoutDirection() == wxLayout_LeftToRight)
2258 gtk_widget_set_redraw_on_allocate(m_wxwindow, HasFlag(wxFULL_REPAINT_ON_RESIZE));
2259 }
2260
2261 // Create input method handler
2262 m_imData = new wxGtkIMData;
2263
2264 // Cannot handle drawing preedited text yet
2265 gtk_im_context_set_use_preedit( m_imData->context, FALSE );
2266
2267 g_signal_connect (m_imData->context, "commit",
2268 G_CALLBACK (gtk_wxwindow_commit_cb), this);
2269 }
2270
2271 // focus handling
2272
2273 if (!GTK_IS_WINDOW(m_widget))
2274 {
2275 if (m_focusWidget == NULL)
2276 m_focusWidget = m_widget;
2277
2278 if (m_wxwindow)
2279 {
2280 g_signal_connect (m_focusWidget, "focus_in_event",
2281 G_CALLBACK (gtk_window_focus_in_callback), this);
2282 g_signal_connect (m_focusWidget, "focus_out_event",
2283 G_CALLBACK (gtk_window_focus_out_callback), this);
2284 }
2285 else
2286 {
2287 g_signal_connect_after (m_focusWidget, "focus_in_event",
2288 G_CALLBACK (gtk_window_focus_in_callback), this);
2289 g_signal_connect_after (m_focusWidget, "focus_out_event",
2290 G_CALLBACK (gtk_window_focus_out_callback), this);
2291 }
2292 }
2293
2294 if ( !AcceptsFocusFromKeyboard() )
2295 {
2296 SetCanFocus(false);
2297
2298 g_signal_connect(m_widget, "focus",
2299 G_CALLBACK(wx_window_focus_callback), this);
2300 }
2301
2302 // connect to the various key and mouse handlers
2303
2304 GtkWidget *connect_widget = GetConnectWidget();
2305
2306 ConnectWidget( connect_widget );
2307
2308 /* We cannot set colours, fonts and cursors before the widget has
2309 been realized, so we do this directly after realization */
2310 g_signal_connect (connect_widget, "realize",
2311 G_CALLBACK (gtk_window_realized_callback), this);
2312
2313 if (!IsTopLevel())
2314 {
2315 g_signal_connect(m_wxwindow ? m_wxwindow : m_widget, "size_allocate",
2316 G_CALLBACK(size_allocate), this);
2317 }
2318
2319 #if GTK_CHECK_VERSION(2, 8, 0)
2320 if ( gtk_check_version(2,8,0) == NULL )
2321 {
2322 // Make sure we can notify the app when mouse capture is lost
2323 if ( m_wxwindow )
2324 {
2325 g_signal_connect (m_wxwindow, "grab_broken_event",
2326 G_CALLBACK (gtk_window_grab_broken), this);
2327 }
2328
2329 if ( connect_widget != m_wxwindow )
2330 {
2331 g_signal_connect (connect_widget, "grab_broken_event",
2332 G_CALLBACK (gtk_window_grab_broken), this);
2333 }
2334 }
2335 #endif // GTK+ >= 2.8
2336
2337 if ( GTKShouldConnectSizeRequest() )
2338 {
2339 // This is needed if we want to add our windows into native
2340 // GTK controls, such as the toolbar. With this callback, the
2341 // toolbar gets to know the correct size (the one set by the
2342 // programmer). Sadly, it misbehaves for wxComboBox.
2343 g_signal_connect (m_widget, "size_request",
2344 G_CALLBACK (wxgtk_window_size_request_callback),
2345 this);
2346 }
2347
2348 InheritAttributes();
2349
2350 m_hasVMT = true;
2351
2352 SetLayoutDirection(wxLayout_Default);
2353
2354 // unless the window was created initially hidden (i.e. Hide() had been
2355 // called before Create()), we should show it at GTK+ level as well
2356 if ( IsShown() )
2357 gtk_widget_show( m_widget );
2358 }
2359
2360 gulong wxWindowGTK::GTKConnectWidget(const char *signal, void (*callback)())
2361 {
2362 return g_signal_connect(m_widget, signal, callback, this);
2363 }
2364
2365 void wxWindowGTK::ConnectWidget( GtkWidget *widget )
2366 {
2367 g_signal_connect (widget, "key_press_event",
2368 G_CALLBACK (gtk_window_key_press_callback), this);
2369 g_signal_connect (widget, "key_release_event",
2370 G_CALLBACK (gtk_window_key_release_callback), this);
2371 g_signal_connect (widget, "button_press_event",
2372 G_CALLBACK (gtk_window_button_press_callback), this);
2373 g_signal_connect (widget, "button_release_event",
2374 G_CALLBACK (gtk_window_button_release_callback), this);
2375 g_signal_connect (widget, "motion_notify_event",
2376 G_CALLBACK (gtk_window_motion_notify_callback), this);
2377
2378 g_signal_connect (widget, "scroll_event",
2379 G_CALLBACK (window_scroll_event), this);
2380 if (m_scrollBar[ScrollDir_Horz])
2381 g_signal_connect (m_scrollBar[ScrollDir_Horz], "scroll_event",
2382 G_CALLBACK (window_scroll_event_hscrollbar), this);
2383 if (m_scrollBar[ScrollDir_Vert])
2384 g_signal_connect (m_scrollBar[ScrollDir_Vert], "scroll_event",
2385 G_CALLBACK (window_scroll_event), this);
2386
2387 g_signal_connect (widget, "popup_menu",
2388 G_CALLBACK (wxgtk_window_popup_menu_callback), this);
2389 g_signal_connect (widget, "enter_notify_event",
2390 G_CALLBACK (gtk_window_enter_callback), this);
2391 g_signal_connect (widget, "leave_notify_event",
2392 G_CALLBACK (gtk_window_leave_callback), this);
2393
2394 if (IsTopLevel() && m_wxwindow)
2395 g_signal_connect (m_wxwindow, "style_set",
2396 G_CALLBACK (gtk_window_style_set_callback), this);
2397 }
2398
2399 bool wxWindowGTK::Destroy()
2400 {
2401 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
2402
2403 m_hasVMT = false;
2404
2405 return wxWindowBase::Destroy();
2406 }
2407
2408 void wxWindowGTK::DoMoveWindow(int x, int y, int width, int height)
2409 {
2410 gtk_widget_set_size_request(m_widget, width, height);
2411
2412 // inform the parent to perform the move
2413 wxASSERT_MSG(m_parent && m_parent->m_wxwindow,
2414 "the parent window has no client area?");
2415 WX_PIZZA(m_parent->m_wxwindow)->move(m_widget, x, y);
2416 }
2417
2418 void wxWindowGTK::ConstrainSize()
2419 {
2420 #ifdef __WXGPE__
2421 // GPE's window manager doesn't like size hints at all, esp. when the user
2422 // has to use the virtual keyboard, so don't constrain size there
2423 if (!IsTopLevel())
2424 #endif
2425 {
2426 const wxSize minSize = GetMinSize();
2427 const wxSize maxSize = GetMaxSize();
2428 if (minSize.x > 0 && m_width < minSize.x) m_width = minSize.x;
2429 if (minSize.y > 0 && m_height < minSize.y) m_height = minSize.y;
2430 if (maxSize.x > 0 && m_width > maxSize.x) m_width = maxSize.x;
2431 if (maxSize.y > 0 && m_height > maxSize.y) m_height = maxSize.y;
2432 }
2433 }
2434
2435 void wxWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags )
2436 {
2437 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
2438 wxASSERT_MSG( (m_parent != NULL), wxT("wxWindowGTK::SetSize requires parent.\n") );
2439
2440 int currentX, currentY;
2441 GetPosition(&currentX, &currentY);
2442 if (x == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2443 x = currentX;
2444 if (y == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2445 y = currentY;
2446 AdjustForParentClientOrigin(x, y, sizeFlags);
2447
2448 // calculate the best size if we should auto size the window
2449 if ( ((sizeFlags & wxSIZE_AUTO_WIDTH) && width == -1) ||
2450 ((sizeFlags & wxSIZE_AUTO_HEIGHT) && height == -1) )
2451 {
2452 const wxSize sizeBest = GetBestSize();
2453 if ( (sizeFlags & wxSIZE_AUTO_WIDTH) && width == -1 )
2454 width = sizeBest.x;
2455 if ( (sizeFlags & wxSIZE_AUTO_HEIGHT) && height == -1 )
2456 height = sizeBest.y;
2457 }
2458
2459 const wxSize oldSize(m_width, m_height);
2460 if (width != -1)
2461 m_width = width;
2462 if (height != -1)
2463 m_height = height;
2464
2465 if (m_parent->m_wxwindow)
2466 {
2467 wxPizza* pizza = WX_PIZZA(m_parent->m_wxwindow);
2468 m_x = x + pizza->m_scroll_x;
2469 m_y = y + pizza->m_scroll_y;
2470
2471 int left_border = 0;
2472 int right_border = 0;
2473 int top_border = 0;
2474 int bottom_border = 0;
2475
2476 /* the default button has a border around it */
2477 if (GTK_WIDGET_CAN_DEFAULT(m_widget))
2478 {
2479 GtkBorder *default_border = NULL;
2480 gtk_widget_style_get( m_widget, "default_border", &default_border, NULL );
2481 if (default_border)
2482 {
2483 left_border += default_border->left;
2484 right_border += default_border->right;
2485 top_border += default_border->top;
2486 bottom_border += default_border->bottom;
2487 gtk_border_free( default_border );
2488 }
2489 }
2490
2491 DoMoveWindow( m_x - left_border,
2492 m_y - top_border,
2493 m_width+left_border+right_border,
2494 m_height+top_border+bottom_border );
2495 }
2496
2497 if (m_width != oldSize.x || m_height != oldSize.y)
2498 {
2499 // update these variables to keep size_allocate handler
2500 // from sending another size event for this change
2501 GetClientSize( &m_oldClientWidth, &m_oldClientHeight );
2502
2503 gtk_widget_queue_resize(m_widget);
2504 if (!m_nativeSizeEvent)
2505 {
2506 wxSizeEvent event( wxSize(m_width,m_height), GetId() );
2507 event.SetEventObject( this );
2508 HandleWindowEvent( event );
2509 }
2510 } else
2511 if (sizeFlags & wxSIZE_FORCE_EVENT)
2512 {
2513 wxSizeEvent event( wxSize(m_width,m_height), GetId() );
2514 event.SetEventObject( this );
2515 HandleWindowEvent( event );
2516 }
2517 }
2518
2519 bool wxWindowGTK::GTKShowFromOnIdle()
2520 {
2521 if (IsShown() && m_showOnIdle && !GTK_WIDGET_VISIBLE (m_widget))
2522 {
2523 GtkAllocation alloc;
2524 alloc.x = m_x;
2525 alloc.y = m_y;
2526 alloc.width = m_width;
2527 alloc.height = m_height;
2528 gtk_widget_size_allocate( m_widget, &alloc );
2529 gtk_widget_show( m_widget );
2530 wxShowEvent eventShow(GetId(), true);
2531 eventShow.SetEventObject(this);
2532 HandleWindowEvent(eventShow);
2533 m_showOnIdle = false;
2534 return true;
2535 }
2536
2537 return false;
2538 }
2539
2540 void wxWindowGTK::OnInternalIdle()
2541 {
2542 if ( gs_deferredFocusOut )
2543 GTKHandleDeferredFocusOut();
2544
2545 // Check if we have to show window now
2546 if (GTKShowFromOnIdle()) return;
2547
2548 if ( m_dirtyTabOrder )
2549 {
2550 m_dirtyTabOrder = false;
2551 RealizeTabOrder();
2552 }
2553
2554 // Update style if the window was not yet realized when
2555 // SetBackgroundStyle() was called
2556 if (m_needsStyleChange)
2557 {
2558 SetBackgroundStyle(GetBackgroundStyle());
2559 m_needsStyleChange = false;
2560 }
2561
2562 wxCursor cursor = m_cursor;
2563 if (g_globalCursor.Ok()) cursor = g_globalCursor;
2564
2565 if (cursor.Ok())
2566 {
2567 /* I now set the cursor anew in every OnInternalIdle call
2568 as setting the cursor in a parent window also effects the
2569 windows above so that checking for the current cursor is
2570 not possible. */
2571
2572 if (m_wxwindow && (m_wxwindow != m_widget))
2573 {
2574 GdkWindow* window = GTKGetDrawingWindow();
2575 if (window)
2576 gdk_window_set_cursor( window, cursor.GetCursor() );
2577
2578 if (!g_globalCursor.Ok())
2579 cursor = *wxSTANDARD_CURSOR;
2580
2581 window = m_widget->window;
2582 if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
2583 gdk_window_set_cursor( window, cursor.GetCursor() );
2584
2585 }
2586 else if ( m_widget )
2587 {
2588 GdkWindow *window = m_widget->window;
2589 if ( window && !GTK_WIDGET_NO_WINDOW(m_widget) )
2590 gdk_window_set_cursor( window, cursor.GetCursor() );
2591 }
2592 }
2593
2594 if (wxUpdateUIEvent::CanUpdate(this) && IsShownOnScreen())
2595 UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
2596 }
2597
2598 void wxWindowGTK::DoGetSize( int *width, int *height ) const
2599 {
2600 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2601
2602 if (width) (*width) = m_width;
2603 if (height) (*height) = m_height;
2604 }
2605
2606 void wxWindowGTK::DoSetClientSize( int width, int height )
2607 {
2608 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2609
2610 const wxSize size = GetSize();
2611 const wxSize clientSize = GetClientSize();
2612 SetSize(width + (size.x - clientSize.x), height + (size.y - clientSize.y));
2613 }
2614
2615 void wxWindowGTK::DoGetClientSize( int *width, int *height ) const
2616 {
2617 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2618
2619 int w = m_width;
2620 int h = m_height;
2621
2622 if ( m_wxwindow )
2623 {
2624 // if window is scrollable, account for scrollbars
2625 if ( GTK_IS_SCROLLED_WINDOW(m_widget) )
2626 {
2627 GtkPolicyType policy[ScrollDir_Max];
2628 gtk_scrolled_window_get_policy(GTK_SCROLLED_WINDOW(m_widget),
2629 &policy[ScrollDir_Horz],
2630 &policy[ScrollDir_Vert]);
2631
2632 for ( int i = 0; i < ScrollDir_Max; i++ )
2633 {
2634 // don't account for the scrollbars we don't have
2635 GtkRange * const range = m_scrollBar[i];
2636 if ( !range )
2637 continue;
2638
2639 // nor for the ones we have but don't current show
2640 switch ( policy[i] )
2641 {
2642 case GTK_POLICY_NEVER:
2643 // never shown so doesn't take any place
2644 continue;
2645
2646 case GTK_POLICY_ALWAYS:
2647 // no checks necessary
2648 break;
2649
2650 case GTK_POLICY_AUTOMATIC:
2651 // may be shown or not, check
2652 GtkAdjustment *adj = gtk_range_get_adjustment(range);
2653 if ( adj->upper <= adj->page_size )
2654 continue;
2655 }
2656
2657 GtkScrolledWindowClass *scroll_class =
2658 GTK_SCROLLED_WINDOW_CLASS( GTK_OBJECT_GET_CLASS(m_widget) );
2659
2660 GtkRequisition req;
2661 gtk_widget_size_request(GTK_WIDGET(range), &req);
2662 if (i == ScrollDir_Horz)
2663 h -= req.height + scroll_class->scrollbar_spacing;
2664 else
2665 w -= req.width + scroll_class->scrollbar_spacing;
2666 }
2667 }
2668
2669 int border_x, border_y;
2670 WX_PIZZA(m_wxwindow)->get_border_widths(border_x, border_y);
2671 w -= 2 * border_x;
2672 h -= 2 * border_y;
2673
2674 if (w < 0)
2675 w = 0;
2676 if (h < 0)
2677 h = 0;
2678 }
2679
2680 if (width) *width = w;
2681 if (height) *height = h;
2682 }
2683
2684 void wxWindowGTK::DoGetPosition( int *x, int *y ) const
2685 {
2686 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2687
2688 int dx = 0;
2689 int dy = 0;
2690 if (!IsTopLevel() && m_parent && m_parent->m_wxwindow)
2691 {
2692 wxPizza* pizza = WX_PIZZA(m_parent->m_wxwindow);
2693 dx = pizza->m_scroll_x;
2694 dy = pizza->m_scroll_y;
2695 }
2696
2697 if (m_x == -1 && m_y == -1)
2698 {
2699 GdkWindow *source = NULL;
2700 if (m_wxwindow)
2701 source = m_wxwindow->window;
2702 else
2703 source = m_widget->window;
2704
2705 if (source)
2706 {
2707 int org_x = 0;
2708 int org_y = 0;
2709 gdk_window_get_origin( source, &org_x, &org_y );
2710
2711 if (m_parent)
2712 m_parent->ScreenToClient(&org_x, &org_y);
2713
2714 const_cast<wxWindowGTK*>(this)->m_x = org_x;
2715 const_cast<wxWindowGTK*>(this)->m_y = org_y;
2716 }
2717 }
2718
2719 if (x) (*x) = m_x - dx;
2720 if (y) (*y) = m_y - dy;
2721 }
2722
2723 void wxWindowGTK::DoClientToScreen( int *x, int *y ) const
2724 {
2725 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2726
2727 if (!m_widget->window) return;
2728
2729 GdkWindow *source = NULL;
2730 if (m_wxwindow)
2731 source = m_wxwindow->window;
2732 else
2733 source = m_widget->window;
2734
2735 int org_x = 0;
2736 int org_y = 0;
2737 gdk_window_get_origin( source, &org_x, &org_y );
2738
2739 if (!m_wxwindow)
2740 {
2741 if (GTK_WIDGET_NO_WINDOW (m_widget))
2742 {
2743 org_x += m_widget->allocation.x;
2744 org_y += m_widget->allocation.y;
2745 }
2746 }
2747
2748
2749 if (x)
2750 {
2751 if (GetLayoutDirection() == wxLayout_RightToLeft)
2752 *x = (GetClientSize().x - *x) + org_x;
2753 else
2754 *x += org_x;
2755 }
2756
2757 if (y) *y += org_y;
2758 }
2759
2760 void wxWindowGTK::DoScreenToClient( int *x, int *y ) const
2761 {
2762 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2763
2764 if (!m_widget->window) return;
2765
2766 GdkWindow *source = NULL;
2767 if (m_wxwindow)
2768 source = m_wxwindow->window;
2769 else
2770 source = m_widget->window;
2771
2772 int org_x = 0;
2773 int org_y = 0;
2774 gdk_window_get_origin( source, &org_x, &org_y );
2775
2776 if (!m_wxwindow)
2777 {
2778 if (GTK_WIDGET_NO_WINDOW (m_widget))
2779 {
2780 org_x += m_widget->allocation.x;
2781 org_y += m_widget->allocation.y;
2782 }
2783 }
2784
2785 if (x)
2786 {
2787 if (GetLayoutDirection() == wxLayout_RightToLeft)
2788 *x = (GetClientSize().x - *x) - org_x;
2789 else
2790 *x -= org_x;
2791 }
2792 if (y) *y -= org_y;
2793 }
2794
2795 bool wxWindowGTK::Show( bool show )
2796 {
2797 if ( !wxWindowBase::Show(show) )
2798 {
2799 // nothing to do
2800 return false;
2801 }
2802
2803 // notice that we may call Hide() before the window is created and this is
2804 // actually useful to create it hidden initially -- but we can't call
2805 // Show() before it is created
2806 if ( !m_widget )
2807 {
2808 wxASSERT_MSG( !show, "can't show invalid window" );
2809 return true;
2810 }
2811
2812 if ( show )
2813 {
2814 if ( m_showOnIdle )
2815 {
2816 // defer until later
2817 return true;
2818 }
2819
2820 gtk_widget_show(m_widget);
2821 }
2822 else // hide
2823 {
2824 gtk_widget_hide(m_widget);
2825 }
2826
2827 wxShowEvent eventShow(GetId(), show);
2828 eventShow.SetEventObject(this);
2829 HandleWindowEvent(eventShow);
2830
2831 return true;
2832 }
2833
2834 void wxWindowGTK::DoEnable( bool enable )
2835 {
2836 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2837
2838 gtk_widget_set_sensitive( m_widget, enable );
2839 if (m_wxwindow && (m_wxwindow != m_widget))
2840 gtk_widget_set_sensitive( m_wxwindow, enable );
2841 }
2842
2843 int wxWindowGTK::GetCharHeight() const
2844 {
2845 wxCHECK_MSG( (m_widget != NULL), 12, wxT("invalid window") );
2846
2847 wxFont font = GetFont();
2848 wxCHECK_MSG( font.Ok(), 12, wxT("invalid font") );
2849
2850 PangoContext* context = gtk_widget_get_pango_context(m_widget);
2851
2852 if (!context)
2853 return 0;
2854
2855 PangoFontDescription *desc = font.GetNativeFontInfo()->description;
2856 PangoLayout *layout = pango_layout_new(context);
2857 pango_layout_set_font_description(layout, desc);
2858 pango_layout_set_text(layout, "H", 1);
2859 PangoLayoutLine *line = (PangoLayoutLine *)pango_layout_get_lines(layout)->data;
2860
2861 PangoRectangle rect;
2862 pango_layout_line_get_extents(line, NULL, &rect);
2863
2864 g_object_unref (layout);
2865
2866 return (int) PANGO_PIXELS(rect.height);
2867 }
2868
2869 int wxWindowGTK::GetCharWidth() const
2870 {
2871 wxCHECK_MSG( (m_widget != NULL), 8, wxT("invalid window") );
2872
2873 wxFont font = GetFont();
2874 wxCHECK_MSG( font.Ok(), 8, wxT("invalid font") );
2875
2876 PangoContext* context = gtk_widget_get_pango_context(m_widget);
2877
2878 if (!context)
2879 return 0;
2880
2881 PangoFontDescription *desc = font.GetNativeFontInfo()->description;
2882 PangoLayout *layout = pango_layout_new(context);
2883 pango_layout_set_font_description(layout, desc);
2884 pango_layout_set_text(layout, "g", 1);
2885 PangoLayoutLine *line = (PangoLayoutLine *)pango_layout_get_lines(layout)->data;
2886
2887 PangoRectangle rect;
2888 pango_layout_line_get_extents(line, NULL, &rect);
2889
2890 g_object_unref (layout);
2891
2892 return (int) PANGO_PIXELS(rect.width);
2893 }
2894
2895 void wxWindowGTK::DoGetTextExtent( const wxString& string,
2896 int *x,
2897 int *y,
2898 int *descent,
2899 int *externalLeading,
2900 const wxFont *theFont ) const
2901 {
2902 wxFont fontToUse = theFont ? *theFont : GetFont();
2903
2904 wxCHECK_RET( fontToUse.Ok(), wxT("invalid font") );
2905
2906 if (string.empty())
2907 {
2908 if (x) (*x) = 0;
2909 if (y) (*y) = 0;
2910 return;
2911 }
2912
2913 PangoContext *context = NULL;
2914 if (m_widget)
2915 context = gtk_widget_get_pango_context( m_widget );
2916
2917 if (!context)
2918 {
2919 if (x) (*x) = 0;
2920 if (y) (*y) = 0;
2921 return;
2922 }
2923
2924 PangoFontDescription *desc = fontToUse.GetNativeFontInfo()->description;
2925 PangoLayout *layout = pango_layout_new(context);
2926 pango_layout_set_font_description(layout, desc);
2927 {
2928 const wxCharBuffer data = wxGTK_CONV( string );
2929 if ( data )
2930 pango_layout_set_text(layout, data, strlen(data));
2931 }
2932
2933 PangoRectangle rect;
2934 pango_layout_get_extents(layout, NULL, &rect);
2935
2936 if (x) (*x) = (wxCoord) PANGO_PIXELS(rect.width);
2937 if (y) (*y) = (wxCoord) PANGO_PIXELS(rect.height);
2938 if (descent)
2939 {
2940 PangoLayoutIter *iter = pango_layout_get_iter(layout);
2941 int baseline = pango_layout_iter_get_baseline(iter);
2942 pango_layout_iter_free(iter);
2943 *descent = *y - PANGO_PIXELS(baseline);
2944 }
2945 if (externalLeading) (*externalLeading) = 0; // ??
2946
2947 g_object_unref (layout);
2948 }
2949
2950 void wxWindowGTK::GTKDisableFocusOutEvent()
2951 {
2952 g_signal_handlers_block_by_func( m_focusWidget,
2953 (gpointer) gtk_window_focus_out_callback, this);
2954 }
2955
2956 void wxWindowGTK::GTKEnableFocusOutEvent()
2957 {
2958 g_signal_handlers_unblock_by_func( m_focusWidget,
2959 (gpointer) gtk_window_focus_out_callback, this);
2960 }
2961
2962 bool wxWindowGTK::GTKHandleFocusIn()
2963 {
2964 // Disable default focus handling for custom windows since the default GTK+
2965 // handler issues a repaint
2966 const bool retval = m_wxwindow ? true : false;
2967
2968
2969 // NB: if there's still unprocessed deferred focus-out event (see
2970 // GTKHandleFocusOut() for explanation), we need to process it first so
2971 // that the order of focus events -- focus-out first, then focus-in
2972 // elsewhere -- is preserved
2973 if ( gs_deferredFocusOut )
2974 {
2975 if ( GTKNeedsToFilterSameWindowFocus() &&
2976 gs_deferredFocusOut == this )
2977 {
2978 // GTK+ focus changed from this wxWindow back to itself, so don't
2979 // emit any events at all
2980 wxLogTrace(TRACE_FOCUS,
2981 "filtered out spurious focus change within %s(%p, %s)",
2982 GetClassInfo()->GetClassName(), this, GetLabel());
2983 gs_deferredFocusOut = NULL;
2984 return retval;
2985 }
2986
2987 // otherwise we need to send focus-out first
2988 wxASSERT_MSG ( gs_deferredFocusOut != this,
2989 "GTKHandleFocusIn(GTKFocus_Normal) called even though focus changed back to itself - derived class should handle this" );
2990 GTKHandleDeferredFocusOut();
2991 }
2992
2993
2994 wxLogTrace(TRACE_FOCUS,
2995 "handling focus_in event for %s(%p, %s)",
2996 GetClassInfo()->GetClassName(), this, GetLabel());
2997
2998 if (m_imData)
2999 gtk_im_context_focus_in(m_imData->context);
3000
3001 gs_currentFocus = this;
3002 gs_pendingFocus = NULL;
3003
3004 #if wxUSE_CARET
3005 // caret needs to be informed about focus change
3006 wxCaret *caret = GetCaret();
3007 if ( caret )
3008 {
3009 caret->OnSetFocus();
3010 }
3011 #endif // wxUSE_CARET
3012
3013 // Notify the parent keeping track of focus for the kbd navigation
3014 // purposes that we got it.
3015 wxChildFocusEvent eventChildFocus(static_cast<wxWindow*>(this));
3016 GTKProcessEvent(eventChildFocus);
3017
3018 wxFocusEvent eventFocus(wxEVT_SET_FOCUS, GetId());
3019 eventFocus.SetEventObject(this);
3020 GTKProcessEvent(eventFocus);
3021
3022 return retval;
3023 }
3024
3025 bool wxWindowGTK::GTKHandleFocusOut()
3026 {
3027 // Disable default focus handling for custom windows since the default GTK+
3028 // handler issues a repaint
3029 const bool retval = m_wxwindow ? true : false;
3030
3031
3032 // NB: If a control is composed of several GtkWidgets and when focus
3033 // changes from one of them to another within the same wxWindow, we get
3034 // a focus-out event followed by focus-in for another GtkWidget owned
3035 // by the same wx control. We don't want to generate two spurious
3036 // wxEVT_SET_FOCUS events in this case, so we defer sending wx events
3037 // from GTKHandleFocusOut() until we know for sure it's not coming back
3038 // (i.e. in GTKHandleFocusIn() or at idle time).
3039 if ( GTKNeedsToFilterSameWindowFocus() )
3040 {
3041 wxASSERT_MSG( gs_deferredFocusOut == NULL,
3042 "deferred focus out event already pending" );
3043 wxLogTrace(TRACE_FOCUS,
3044 "deferring focus_out event for %s(%p, %s)",
3045 GetClassInfo()->GetClassName(), this, GetLabel());
3046 gs_deferredFocusOut = this;
3047 return retval;
3048 }
3049
3050 GTKHandleFocusOutNoDeferring();
3051
3052 return retval;
3053 }
3054
3055 void wxWindowGTK::GTKHandleFocusOutNoDeferring()
3056 {
3057 wxLogTrace(TRACE_FOCUS,
3058 "handling focus_out event for %s(%p, %s)",
3059 GetClassInfo()->GetClassName(), this, GetLabel());
3060
3061 if (m_imData)
3062 gtk_im_context_focus_out(m_imData->context);
3063
3064 if ( gs_currentFocus != this )
3065 {
3066 // Something is terribly wrong, gs_currentFocus is out of sync with the
3067 // real focus. We will reset it to NULL anyway, because after this
3068 // focus-out event is handled, one of the following with happen:
3069 //
3070 // * either focus will go out of the app altogether, in which case
3071 // gs_currentFocus _should_ be NULL
3072 //
3073 // * or it goes to another control, in which case focus-in event will
3074 // follow immediately and it will set gs_currentFocus to the right
3075 // value
3076 wxLogDebug("window %s(%p, %s) lost focus even though it didn't have it",
3077 GetClassInfo()->GetClassName(), this, GetLabel());
3078 }
3079 gs_currentFocus = NULL;
3080
3081 #if wxUSE_CARET
3082 // caret needs to be informed about focus change
3083 wxCaret *caret = GetCaret();
3084 if ( caret )
3085 {
3086 caret->OnKillFocus();
3087 }
3088 #endif // wxUSE_CARET
3089
3090 wxFocusEvent event( wxEVT_KILL_FOCUS, GetId() );
3091 event.SetEventObject( this );
3092 GTKProcessEvent( event );
3093 }
3094
3095 /*static*/
3096 void wxWindowGTK::GTKHandleDeferredFocusOut()
3097 {
3098 // NB: See GTKHandleFocusOut() for explanation. This function is called
3099 // from either GTKHandleFocusIn() or OnInternalIdle() to process
3100 // deferred event.
3101 if ( gs_deferredFocusOut )
3102 {
3103 wxWindowGTK *win = gs_deferredFocusOut;
3104 gs_deferredFocusOut = NULL;
3105
3106 wxLogTrace(TRACE_FOCUS,
3107 "processing deferred focus_out event for %s(%p, %s)",
3108 win->GetClassInfo()->GetClassName(), win, win->GetLabel());
3109
3110 win->GTKHandleFocusOutNoDeferring();
3111 }
3112 }
3113
3114 void wxWindowGTK::SetFocus()
3115 {
3116 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
3117
3118 // Setting "physical" focus is not immediate in GTK+ and while
3119 // gtk_widget_is_focus ("determines if the widget is the focus widget
3120 // within its toplevel", i.e. returns true for one widget per TLW, not
3121 // globally) returns true immediately after grabbing focus,
3122 // GTK_WIDGET_HAS_FOCUS (which returns true only for the one widget that
3123 // has focus at the moment) takes affect only after the window is shown
3124 // (if it was hidden at the moment of the call) or at the next event loop
3125 // iteration.
3126 //
3127 // Because we want to FindFocus() call immediately following
3128 // foo->SetFocus() to return foo, we have to keep track of "pending" focus
3129 // ourselves.
3130 gs_pendingFocus = this;
3131
3132 GtkWidget *widget = m_wxwindow ? m_wxwindow : m_focusWidget;
3133
3134 if ( GTK_IS_CONTAINER(widget) &&
3135 !GTK_WIDGET_CAN_FOCUS(widget) )
3136 {
3137 wxLogTrace(TRACE_FOCUS,
3138 wxT("Setting focus to a child of %s(%p, %s)"),
3139 GetClassInfo()->GetClassName(), this, GetLabel().c_str());
3140 gtk_widget_child_focus(widget, GTK_DIR_TAB_FORWARD);
3141 }
3142 else
3143 {
3144 wxLogTrace(TRACE_FOCUS,
3145 wxT("Setting focus to %s(%p, %s)"),
3146 GetClassInfo()->GetClassName(), this, GetLabel().c_str());
3147 gtk_widget_grab_focus(widget);
3148 }
3149 }
3150
3151 void wxWindowGTK::SetCanFocus(bool canFocus)
3152 {
3153 if ( canFocus )
3154 GTK_WIDGET_SET_FLAGS(m_widget, GTK_CAN_FOCUS);
3155 else
3156 GTK_WIDGET_UNSET_FLAGS(m_widget, GTK_CAN_FOCUS);
3157
3158 if ( m_wxwindow && (m_widget != m_wxwindow) )
3159 {
3160 if ( canFocus )
3161 GTK_WIDGET_SET_FLAGS(m_wxwindow, GTK_CAN_FOCUS);
3162 else
3163 GTK_WIDGET_UNSET_FLAGS(m_wxwindow, GTK_CAN_FOCUS);
3164 }
3165 }
3166
3167 bool wxWindowGTK::Reparent( wxWindowBase *newParentBase )
3168 {
3169 wxCHECK_MSG( (m_widget != NULL), false, wxT("invalid window") );
3170
3171 wxWindowGTK *oldParent = m_parent,
3172 *newParent = (wxWindowGTK *)newParentBase;
3173
3174 wxASSERT( GTK_IS_WIDGET(m_widget) );
3175
3176 if ( !wxWindowBase::Reparent(newParent) )
3177 return false;
3178
3179 wxASSERT( GTK_IS_WIDGET(m_widget) );
3180
3181 if (oldParent)
3182 gtk_container_remove( GTK_CONTAINER(m_widget->parent), m_widget );
3183
3184 wxASSERT( GTK_IS_WIDGET(m_widget) );
3185
3186 if (newParent)
3187 {
3188 if (GTK_WIDGET_VISIBLE (newParent->m_widget))
3189 {
3190 m_showOnIdle = true;
3191 gtk_widget_hide( m_widget );
3192 }
3193 /* insert GTK representation */
3194 newParent->AddChildGTK(this);
3195 }
3196
3197 SetLayoutDirection(wxLayout_Default);
3198
3199 return true;
3200 }
3201
3202 void wxWindowGTK::DoAddChild(wxWindowGTK *child)
3203 {
3204 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
3205 wxASSERT_MSG( (child != NULL), wxT("invalid child window") );
3206
3207 /* add to list */
3208 AddChild( child );
3209
3210 /* insert GTK representation */
3211 AddChildGTK(child);
3212 }
3213
3214 void wxWindowGTK::AddChild(wxWindowBase *child)
3215 {
3216 wxWindowBase::AddChild(child);
3217 m_dirtyTabOrder = true;
3218 wxTheApp->WakeUpIdle();
3219 }
3220
3221 void wxWindowGTK::RemoveChild(wxWindowBase *child)
3222 {
3223 wxWindowBase::RemoveChild(child);
3224 m_dirtyTabOrder = true;
3225 wxTheApp->WakeUpIdle();
3226 }
3227
3228 /* static */
3229 wxLayoutDirection wxWindowGTK::GTKGetLayout(GtkWidget *widget)
3230 {
3231 return gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL
3232 ? wxLayout_RightToLeft
3233 : wxLayout_LeftToRight;
3234 }
3235
3236 /* static */
3237 void wxWindowGTK::GTKSetLayout(GtkWidget *widget, wxLayoutDirection dir)
3238 {
3239 wxASSERT_MSG( dir != wxLayout_Default, wxT("invalid layout direction") );
3240
3241 gtk_widget_set_direction(widget,
3242 dir == wxLayout_RightToLeft ? GTK_TEXT_DIR_RTL
3243 : GTK_TEXT_DIR_LTR);
3244 }
3245
3246 wxLayoutDirection wxWindowGTK::GetLayoutDirection() const
3247 {
3248 return GTKGetLayout(m_widget);
3249 }
3250
3251 void wxWindowGTK::SetLayoutDirection(wxLayoutDirection dir)
3252 {
3253 if ( dir == wxLayout_Default )
3254 {
3255 const wxWindow *const parent = GetParent();
3256 if ( parent )
3257 {
3258 // inherit layout from parent.
3259 dir = parent->GetLayoutDirection();
3260 }
3261 else // no parent, use global default layout
3262 {
3263 dir = wxTheApp->GetLayoutDirection();
3264 }
3265 }
3266
3267 if ( dir == wxLayout_Default )
3268 return;
3269
3270 GTKSetLayout(m_widget, dir);
3271
3272 if (m_wxwindow && (m_wxwindow != m_widget))
3273 GTKSetLayout(m_wxwindow, dir);
3274 }
3275
3276 wxCoord
3277 wxWindowGTK::AdjustForLayoutDirection(wxCoord x,
3278 wxCoord WXUNUSED(width),
3279 wxCoord WXUNUSED(widthTotal)) const
3280 {
3281 // We now mirror the coordinates of RTL windows in wxPizza
3282 return x;
3283 }
3284
3285 void wxWindowGTK::DoMoveInTabOrder(wxWindow *win, WindowOrder move)
3286 {
3287 wxWindowBase::DoMoveInTabOrder(win, move);
3288 m_dirtyTabOrder = true;
3289 wxTheApp->WakeUpIdle();
3290 }
3291
3292 bool wxWindowGTK::DoNavigateIn(int flags)
3293 {
3294 if ( flags & wxNavigationKeyEvent::WinChange )
3295 {
3296 wxFAIL_MSG( wxT("not implemented") );
3297
3298 return false;
3299 }
3300 else // navigate inside the container
3301 {
3302 wxWindow *parent = wxGetTopLevelParent((wxWindow *)this);
3303 wxCHECK_MSG( parent, false, wxT("every window must have a TLW parent") );
3304
3305 GtkDirectionType dir;
3306 dir = flags & wxNavigationKeyEvent::IsForward ? GTK_DIR_TAB_FORWARD
3307 : GTK_DIR_TAB_BACKWARD;
3308
3309 gboolean rc;
3310 g_signal_emit_by_name(parent->m_widget, "focus", dir, &rc);
3311
3312 return rc == TRUE;
3313 }
3314 }
3315
3316 bool wxWindowGTK::GTKWidgetNeedsMnemonic() const
3317 {
3318 // none needed by default
3319 return false;
3320 }
3321
3322 void wxWindowGTK::GTKWidgetDoSetMnemonic(GtkWidget* WXUNUSED(w))
3323 {
3324 // nothing to do by default since none is needed
3325 }
3326
3327 void wxWindowGTK::RealizeTabOrder()
3328 {
3329 if (m_wxwindow)
3330 {
3331 if ( !m_children.empty() )
3332 {
3333 // we don't only construct the correct focus chain but also use
3334 // this opportunity to update the mnemonic widgets for the widgets
3335 // that need them
3336
3337 GList *chain = NULL;
3338 wxWindowGTK* mnemonicWindow = NULL;
3339
3340 for ( wxWindowList::const_iterator i = m_children.begin();
3341 i != m_children.end();
3342 ++i )
3343 {
3344 wxWindowGTK *win = *i;
3345
3346 if ( mnemonicWindow )
3347 {
3348 if ( win->AcceptsFocusFromKeyboard() )
3349 {
3350 // wxComboBox et al. needs to focus on on a different
3351 // widget than m_widget, so if the main widget isn't
3352 // focusable try the connect widget
3353 GtkWidget* w = win->m_widget;
3354 if ( !GTK_WIDGET_CAN_FOCUS(w) )
3355 {
3356 w = win->GetConnectWidget();
3357 if ( !GTK_WIDGET_CAN_FOCUS(w) )
3358 w = NULL;
3359 }
3360
3361 if ( w )
3362 {
3363 mnemonicWindow->GTKWidgetDoSetMnemonic(w);
3364 mnemonicWindow = NULL;
3365 }
3366 }
3367 }
3368 else if ( win->GTKWidgetNeedsMnemonic() )
3369 {
3370 mnemonicWindow = win;
3371 }
3372
3373 chain = g_list_prepend(chain, win->m_widget);
3374 }
3375
3376 chain = g_list_reverse(chain);
3377
3378 gtk_container_set_focus_chain(GTK_CONTAINER(m_wxwindow), chain);
3379 g_list_free(chain);
3380 }
3381 else // no children
3382 {
3383 gtk_container_unset_focus_chain(GTK_CONTAINER(m_wxwindow));
3384 }
3385 }
3386 }
3387
3388 void wxWindowGTK::Raise()
3389 {
3390 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3391
3392 if (m_wxwindow && m_wxwindow->window)
3393 {
3394 gdk_window_raise( m_wxwindow->window );
3395 }
3396 else if (m_widget->window)
3397 {
3398 gdk_window_raise( m_widget->window );
3399 }
3400 }
3401
3402 void wxWindowGTK::Lower()
3403 {
3404 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3405
3406 if (m_wxwindow && m_wxwindow->window)
3407 {
3408 gdk_window_lower( m_wxwindow->window );
3409 }
3410 else if (m_widget->window)
3411 {
3412 gdk_window_lower( m_widget->window );
3413 }
3414 }
3415
3416 bool wxWindowGTK::SetCursor( const wxCursor &cursor )
3417 {
3418 if ( !wxWindowBase::SetCursor(cursor.Ok() ? cursor : *wxSTANDARD_CURSOR) )
3419 return false;
3420
3421 GTKUpdateCursor();
3422
3423 return true;
3424 }
3425
3426 void wxWindowGTK::GTKUpdateCursor()
3427 {
3428 wxCursor cursor(g_globalCursor.Ok() ? g_globalCursor : GetCursor());
3429 if ( cursor.Ok() )
3430 {
3431 wxArrayGdkWindows windowsThis;
3432 GdkWindow * const winThis = GTKGetWindow(windowsThis);
3433 if ( winThis )
3434 {
3435 gdk_window_set_cursor(winThis, cursor.GetCursor());
3436 }
3437 else
3438 {
3439 const size_t count = windowsThis.size();
3440 for ( size_t n = 0; n < count; n++ )
3441 {
3442 GdkWindow *win = windowsThis[n];
3443 if ( !win )
3444 {
3445 wxFAIL_MSG(wxT("NULL window returned by GTKGetWindow()?"));
3446 continue;
3447 }
3448
3449 gdk_window_set_cursor(win, cursor.GetCursor());
3450 }
3451 }
3452 }
3453 }
3454
3455 void wxWindowGTK::WarpPointer( int x, int y )
3456 {
3457 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3458
3459 // We provide this function ourselves as it is
3460 // missing in GDK (top of this file).
3461
3462 GdkWindow *window = NULL;
3463 if (m_wxwindow)
3464 window = m_wxwindow->window;
3465 else
3466 window = GetConnectWidget()->window;
3467
3468 if (window)
3469 gdk_window_warp_pointer( window, x, y );
3470 }
3471
3472 wxWindowGTK::ScrollDir wxWindowGTK::ScrollDirFromRange(GtkRange *range) const
3473 {
3474 // find the scrollbar which generated the event
3475 for ( int dir = 0; dir < ScrollDir_Max; dir++ )
3476 {
3477 if ( range == m_scrollBar[dir] )
3478 return (ScrollDir)dir;
3479 }
3480
3481 wxFAIL_MSG( wxT("event from unknown scrollbar received") );
3482
3483 return ScrollDir_Max;
3484 }
3485
3486 bool wxWindowGTK::DoScrollByUnits(ScrollDir dir, ScrollUnit unit, int units)
3487 {
3488 bool changed = false;
3489 GtkRange* range = m_scrollBar[dir];
3490 if ( range && units )
3491 {
3492 GtkAdjustment* adj = range->adjustment;
3493 gdouble inc = unit == ScrollUnit_Line ? adj->step_increment
3494 : adj->page_increment;
3495
3496 const int posOld = int(adj->value + 0.5);
3497 gtk_range_set_value(range, posOld + units*inc);
3498
3499 changed = int(adj->value + 0.5) != posOld;
3500 }
3501
3502 return changed;
3503 }
3504
3505 bool wxWindowGTK::ScrollLines(int lines)
3506 {
3507 return DoScrollByUnits(ScrollDir_Vert, ScrollUnit_Line, lines);
3508 }
3509
3510 bool wxWindowGTK::ScrollPages(int pages)
3511 {
3512 return DoScrollByUnits(ScrollDir_Vert, ScrollUnit_Page, pages);
3513 }
3514
3515 void wxWindowGTK::Refresh(bool WXUNUSED(eraseBackground),
3516 const wxRect *rect)
3517 {
3518 if ( !m_widget )
3519 {
3520 // it is valid to call Refresh() for a window which hasn't been created
3521 // yet, it simply doesn't do anything in this case
3522 return;
3523 }
3524
3525 if (!m_wxwindow)
3526 {
3527 if (rect)
3528 gtk_widget_queue_draw_area( m_widget, rect->x, rect->y, rect->width, rect->height );
3529 else
3530 gtk_widget_queue_draw( m_widget );
3531 }
3532 else
3533 {
3534 // Just return if the widget or one of its ancestors isn't mapped
3535 GtkWidget *w;
3536 for (w = m_wxwindow; w != NULL; w = w->parent)
3537 if (!GTK_WIDGET_MAPPED (w))
3538 return;
3539
3540 GdkWindow* window = GTKGetDrawingWindow();
3541 if (rect)
3542 {
3543 int x = rect->x;
3544 if (GetLayoutDirection() == wxLayout_RightToLeft)
3545 x = GetClientSize().x - x - rect->width;
3546 GdkRectangle r;
3547 r.x = rect->x;
3548 r.y = rect->y;
3549 r.width = rect->width;
3550 r.height = rect->height;
3551 gdk_window_invalidate_rect(window, &r, true);
3552 }
3553 else
3554 gdk_window_invalidate_rect(window, NULL, true);
3555 }
3556 }
3557
3558 void wxWindowGTK::Update()
3559 {
3560 if (m_widget && GTK_WIDGET_MAPPED(m_widget))
3561 {
3562 GdkDisplay* display = gtk_widget_get_display(m_widget);
3563 // Flush everything out to the server, and wait for it to finish.
3564 // This ensures nothing will overwrite the drawing we are about to do.
3565 gdk_display_sync(display);
3566
3567 GdkWindow* window = GTKGetDrawingWindow();
3568 if (window == NULL)
3569 window = m_widget->window;
3570 gdk_window_process_updates(window, true);
3571
3572 // Flush again, but no need to wait for it to finish
3573 gdk_display_flush(display);
3574 }
3575 }
3576
3577 bool wxWindowGTK::DoIsExposed( int x, int y ) const
3578 {
3579 return m_updateRegion.Contains(x, y) != wxOutRegion;
3580 }
3581
3582 bool wxWindowGTK::DoIsExposed( int x, int y, int w, int h ) const
3583 {
3584 if (GetLayoutDirection() == wxLayout_RightToLeft)
3585 return m_updateRegion.Contains(x-w, y, w, h) != wxOutRegion;
3586 else
3587 return m_updateRegion.Contains(x, y, w, h) != wxOutRegion;
3588 }
3589
3590 void wxWindowGTK::GtkSendPaintEvents()
3591 {
3592 if (!m_wxwindow)
3593 {
3594 m_updateRegion.Clear();
3595 return;
3596 }
3597
3598 // Clip to paint region in wxClientDC
3599 m_clipPaintRegion = true;
3600
3601 m_nativeUpdateRegion = m_updateRegion;
3602
3603 if (GetLayoutDirection() == wxLayout_RightToLeft)
3604 {
3605 // Transform m_updateRegion under RTL
3606 m_updateRegion.Clear();
3607
3608 gint width;
3609 gdk_drawable_get_size(m_wxwindow->window, &width, NULL);
3610
3611 wxRegionIterator upd( m_nativeUpdateRegion );
3612 while (upd)
3613 {
3614 wxRect rect;
3615 rect.x = upd.GetX();
3616 rect.y = upd.GetY();
3617 rect.width = upd.GetWidth();
3618 rect.height = upd.GetHeight();
3619
3620 rect.x = width - rect.x - rect.width;
3621 m_updateRegion.Union( rect );
3622
3623 ++upd;
3624 }
3625 }
3626
3627 switch ( GetBackgroundStyle() )
3628 {
3629 case wxBG_STYLE_ERASE:
3630 {
3631 wxWindowDC dc( (wxWindow*)this );
3632 dc.SetDeviceClippingRegion( m_updateRegion );
3633
3634 // Work around gtk-qt <= 0.60 bug whereby the window colour
3635 // remains grey
3636 if ( UseBgCol() &&
3637 wxSystemOptions::
3638 GetOptionInt("gtk.window.force-background-colour") )
3639 {
3640 dc.SetBackground(GetBackgroundColour());
3641 dc.Clear();
3642 }
3643
3644 wxEraseEvent erase_event( GetId(), &dc );
3645 erase_event.SetEventObject( this );
3646
3647 if ( HandleWindowEvent(erase_event) )
3648 {
3649 // background erased, don't do it again
3650 break;
3651 }
3652 }
3653 // fall through
3654
3655 case wxBG_STYLE_SYSTEM:
3656 if ( GetThemeEnabled() )
3657 {
3658 // find ancestor from which to steal background
3659 wxWindow *parent = wxGetTopLevelParent((wxWindow *)this);
3660 if (!parent)
3661 parent = (wxWindow*)this;
3662
3663 if (GTK_WIDGET_MAPPED(parent->m_widget))
3664 {
3665 wxRegionIterator upd( m_nativeUpdateRegion );
3666 while (upd)
3667 {
3668 GdkRectangle rect;
3669 rect.x = upd.GetX();
3670 rect.y = upd.GetY();
3671 rect.width = upd.GetWidth();
3672 rect.height = upd.GetHeight();
3673
3674 gtk_paint_flat_box( parent->m_widget->style,
3675 GTKGetDrawingWindow(),
3676 (GtkStateType)GTK_WIDGET_STATE(m_wxwindow),
3677 GTK_SHADOW_NONE,
3678 &rect,
3679 parent->m_widget,
3680 (char *)"base",
3681 0, 0, -1, -1 );
3682
3683 ++upd;
3684 }
3685 }
3686 }
3687 break;
3688
3689 case wxBG_STYLE_PAINT:
3690 // nothing to do: window will be painted over in EVT_PAINT
3691 break;
3692
3693 default:
3694 wxFAIL_MSG( "unsupported background style" );
3695 }
3696
3697 wxNcPaintEvent nc_paint_event( GetId() );
3698 nc_paint_event.SetEventObject( this );
3699 HandleWindowEvent( nc_paint_event );
3700
3701 wxPaintEvent paint_event( GetId() );
3702 paint_event.SetEventObject( this );
3703 HandleWindowEvent( paint_event );
3704
3705 m_clipPaintRegion = false;
3706
3707 m_updateRegion.Clear();
3708 m_nativeUpdateRegion.Clear();
3709 }
3710
3711 void wxWindowGTK::SetDoubleBuffered( bool on )
3712 {
3713 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3714
3715 if ( m_wxwindow )
3716 gtk_widget_set_double_buffered( m_wxwindow, on );
3717 }
3718
3719 bool wxWindowGTK::IsDoubleBuffered() const
3720 {
3721 return GTK_WIDGET_DOUBLE_BUFFERED( m_wxwindow );
3722 }
3723
3724 void wxWindowGTK::ClearBackground()
3725 {
3726 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
3727 }
3728
3729 #if wxUSE_TOOLTIPS
3730 void wxWindowGTK::DoSetToolTip( wxToolTip *tip )
3731 {
3732 wxWindowBase::DoSetToolTip(tip);
3733
3734 if (m_tooltip)
3735 {
3736 m_tooltip->GTKApply( (wxWindow *)this );
3737 }
3738 else
3739 {
3740 GtkWidget *w = GetConnectWidget();
3741 wxToolTip::GTKApply(w, NULL);
3742 #if GTK_CHECK_VERSION(2, 12, 0)
3743 // Just applying NULL doesn't work on 2.12.0, so also use
3744 // gtk_widget_set_has_tooltip. It is part of the new GtkTooltip API
3745 // but seems also to work with the old GtkTooltips.
3746 if (gtk_check_version(2, 12, 0) == NULL)
3747 gtk_widget_set_has_tooltip(w, FALSE);
3748 #endif
3749 }
3750 }
3751
3752 void wxWindowGTK::GTKApplyToolTip( GtkTooltips *tips, const gchar *tip )
3753 {
3754 gtk_tooltips_set_tip(tips, GetConnectWidget(), tip, NULL);
3755 }
3756 #endif // wxUSE_TOOLTIPS
3757
3758 bool wxWindowGTK::SetBackgroundColour( const wxColour &colour )
3759 {
3760 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
3761
3762 if (!wxWindowBase::SetBackgroundColour(colour))
3763 return false;
3764
3765 if (colour.Ok())
3766 {
3767 // We need the pixel value e.g. for background clearing.
3768 m_backgroundColour.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 GTKApplyWidgetStyle(true);
3774
3775 return true;
3776 }
3777
3778 bool wxWindowGTK::SetForegroundColour( const wxColour &colour )
3779 {
3780 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
3781
3782 if (!wxWindowBase::SetForegroundColour(colour))
3783 {
3784 return false;
3785 }
3786
3787 if (colour.Ok())
3788 {
3789 // We need the pixel value e.g. for background clearing.
3790 m_foregroundColour.CalcPixel(gtk_widget_get_colormap(m_widget));
3791 }
3792
3793 // apply style change (forceStyle=true so that new style is applied
3794 // even if the bg colour changed from valid to wxNullColour):
3795 GTKApplyWidgetStyle(true);
3796
3797 return true;
3798 }
3799
3800 PangoContext *wxWindowGTK::GTKGetPangoDefaultContext()
3801 {
3802 return gtk_widget_get_pango_context( m_widget );
3803 }
3804
3805 GtkRcStyle *wxWindowGTK::GTKCreateWidgetStyle(bool forceStyle)
3806 {
3807 // do we need to apply any changes at all?
3808 if ( !forceStyle &&
3809 !m_font.Ok() &&
3810 !m_foregroundColour.Ok() && !m_backgroundColour.Ok() )
3811 {
3812 return NULL;
3813 }
3814
3815 GtkRcStyle *style = gtk_rc_style_new();
3816
3817 if ( m_font.Ok() )
3818 {
3819 style->font_desc =
3820 pango_font_description_copy( m_font.GetNativeFontInfo()->description );
3821 }
3822
3823 int flagsNormal = 0,
3824 flagsPrelight = 0,
3825 flagsActive = 0,
3826 flagsInsensitive = 0;
3827
3828 if ( m_foregroundColour.Ok() )
3829 {
3830 const GdkColor *fg = m_foregroundColour.GetColor();
3831
3832 style->fg[GTK_STATE_NORMAL] =
3833 style->text[GTK_STATE_NORMAL] = *fg;
3834 flagsNormal |= GTK_RC_FG | GTK_RC_TEXT;
3835
3836 style->fg[GTK_STATE_PRELIGHT] =
3837 style->text[GTK_STATE_PRELIGHT] = *fg;
3838 flagsPrelight |= GTK_RC_FG | GTK_RC_TEXT;
3839
3840 style->fg[GTK_STATE_ACTIVE] =
3841 style->text[GTK_STATE_ACTIVE] = *fg;
3842 flagsActive |= GTK_RC_FG | GTK_RC_TEXT;
3843 }
3844
3845 if ( m_backgroundColour.Ok() )
3846 {
3847 const GdkColor *bg = m_backgroundColour.GetColor();
3848
3849 style->bg[GTK_STATE_NORMAL] =
3850 style->base[GTK_STATE_NORMAL] = *bg;
3851 flagsNormal |= GTK_RC_BG | GTK_RC_BASE;
3852
3853 style->bg[GTK_STATE_PRELIGHT] =
3854 style->base[GTK_STATE_PRELIGHT] = *bg;
3855 flagsPrelight |= GTK_RC_BG | GTK_RC_BASE;
3856
3857 style->bg[GTK_STATE_ACTIVE] =
3858 style->base[GTK_STATE_ACTIVE] = *bg;
3859 flagsActive |= GTK_RC_BG | GTK_RC_BASE;
3860
3861 style->bg[GTK_STATE_INSENSITIVE] =
3862 style->base[GTK_STATE_INSENSITIVE] = *bg;
3863 flagsInsensitive |= GTK_RC_BG | GTK_RC_BASE;
3864 }
3865
3866 style->color_flags[GTK_STATE_NORMAL] = (GtkRcFlags)flagsNormal;
3867 style->color_flags[GTK_STATE_PRELIGHT] = (GtkRcFlags)flagsPrelight;
3868 style->color_flags[GTK_STATE_ACTIVE] = (GtkRcFlags)flagsActive;
3869 style->color_flags[GTK_STATE_INSENSITIVE] = (GtkRcFlags)flagsInsensitive;
3870
3871 return style;
3872 }
3873
3874 void wxWindowGTK::GTKApplyWidgetStyle(bool forceStyle)
3875 {
3876 GtkRcStyle *style = GTKCreateWidgetStyle(forceStyle);
3877 if ( style )
3878 {
3879 DoApplyWidgetStyle(style);
3880 gtk_rc_style_unref(style);
3881 }
3882
3883 // Style change may affect GTK+'s size calculation:
3884 InvalidateBestSize();
3885 }
3886
3887 void wxWindowGTK::DoApplyWidgetStyle(GtkRcStyle *style)
3888 {
3889 if ( m_wxwindow )
3890 {
3891 // block the signal temporarily to avoid sending
3892 // wxSysColourChangedEvents when we change the colours ourselves
3893 bool unblock = false;
3894 if ( IsTopLevel() )
3895 {
3896 unblock = true;
3897 g_signal_handlers_block_by_func(
3898 m_wxwindow, (void *)gtk_window_style_set_callback, this);
3899 }
3900
3901 gtk_widget_modify_style(m_wxwindow, style);
3902
3903 if ( unblock )
3904 {
3905 g_signal_handlers_unblock_by_func(
3906 m_wxwindow, (void *)gtk_window_style_set_callback, this);
3907 }
3908 }
3909 else
3910 {
3911 gtk_widget_modify_style(m_widget, style);
3912 }
3913 }
3914
3915 bool wxWindowGTK::SetBackgroundStyle(wxBackgroundStyle style)
3916 {
3917 wxWindowBase::SetBackgroundStyle(style);
3918
3919 if ( style == wxBG_STYLE_PAINT )
3920 {
3921 GdkWindow *window;
3922 if ( m_wxwindow )
3923 {
3924 window = GTKGetDrawingWindow();
3925 }
3926 else
3927 {
3928 GtkWidget * const w = GetConnectWidget();
3929 window = w ? w->window : NULL;
3930 }
3931
3932 if (window)
3933 {
3934 // Make sure GDK/X11 doesn't refresh the window
3935 // automatically.
3936 gdk_window_set_back_pixmap( window, None, False );
3937 #ifdef __X__
3938 Display* display = GDK_WINDOW_DISPLAY(window);
3939 XFlush(display);
3940 #endif
3941 m_needsStyleChange = false;
3942 }
3943 else // window not realized yet
3944 {
3945 // Do in OnIdle, because the window is not yet available
3946 m_needsStyleChange = true;
3947 }
3948
3949 // Don't apply widget style, or we get a grey background
3950 }
3951 else
3952 {
3953 // apply style change (forceStyle=true so that new style is applied
3954 // even if the bg colour changed from valid to wxNullColour):
3955 GTKApplyWidgetStyle(true);
3956 }
3957
3958 return true;
3959 }
3960
3961 // ----------------------------------------------------------------------------
3962 // Pop-up menu stuff
3963 // ----------------------------------------------------------------------------
3964
3965 #if wxUSE_MENUS_NATIVE
3966
3967 static void SetInvokingWindow( wxMenu *menu, wxWindow* win )
3968 {
3969 menu->SetInvokingWindow( win );
3970
3971 wxMenuItemList::compatibility_iterator node = menu->GetMenuItems().GetFirst();
3972 while (node)
3973 {
3974 wxMenuItem *menuitem = node->GetData();
3975 if (menuitem->IsSubMenu())
3976 {
3977 SetInvokingWindow( menuitem->GetSubMenu(), win );
3978 }
3979
3980 node = node->GetNext();
3981 }
3982 }
3983
3984 extern "C" {
3985 static
3986 void wxPopupMenuPositionCallback( GtkMenu *menu,
3987 gint *x, gint *y,
3988 gboolean * WXUNUSED(whatever),
3989 gpointer user_data )
3990 {
3991 // ensure that the menu appears entirely on screen
3992 GtkRequisition req;
3993 gtk_widget_get_child_requisition(GTK_WIDGET(menu), &req);
3994
3995 wxSize sizeScreen = wxGetDisplaySize();
3996 wxPoint *pos = (wxPoint*)user_data;
3997
3998 gint xmax = sizeScreen.x - req.width,
3999 ymax = sizeScreen.y - req.height;
4000
4001 *x = pos->x < xmax ? pos->x : xmax;
4002 *y = pos->y < ymax ? pos->y : ymax;
4003 }
4004 }
4005
4006 bool wxWindowGTK::DoPopupMenu( wxMenu *menu, int x, int y )
4007 {
4008 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
4009
4010 wxCHECK_MSG( menu != NULL, false, wxT("invalid popup-menu") );
4011
4012 SetInvokingWindow( menu, this );
4013
4014 menu->UpdateUI();
4015
4016 wxPoint pos;
4017 gpointer userdata;
4018 GtkMenuPositionFunc posfunc;
4019 if ( x == -1 && y == -1 )
4020 {
4021 // use GTK's default positioning algorithm
4022 userdata = NULL;
4023 posfunc = NULL;
4024 }
4025 else
4026 {
4027 pos = ClientToScreen(wxPoint(x, y));
4028 userdata = &pos;
4029 posfunc = wxPopupMenuPositionCallback;
4030 }
4031
4032 menu->m_popupShown = true;
4033 gtk_menu_popup(
4034 GTK_MENU(menu->m_menu),
4035 NULL, // parent menu shell
4036 NULL, // parent menu item
4037 posfunc, // function to position it
4038 userdata, // client data
4039 0, // button used to activate it
4040 gtk_get_current_event_time()
4041 );
4042
4043 while (menu->m_popupShown)
4044 {
4045 gtk_main_iteration();
4046 }
4047
4048 return true;
4049 }
4050
4051 #endif // wxUSE_MENUS_NATIVE
4052
4053 #if wxUSE_DRAG_AND_DROP
4054
4055 void wxWindowGTK::SetDropTarget( wxDropTarget *dropTarget )
4056 {
4057 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4058
4059 GtkWidget *dnd_widget = GetConnectWidget();
4060
4061 if (m_dropTarget) m_dropTarget->GtkUnregisterWidget( dnd_widget );
4062
4063 if (m_dropTarget) delete m_dropTarget;
4064 m_dropTarget = dropTarget;
4065
4066 if (m_dropTarget) m_dropTarget->GtkRegisterWidget( dnd_widget );
4067 }
4068
4069 #endif // wxUSE_DRAG_AND_DROP
4070
4071 GtkWidget* wxWindowGTK::GetConnectWidget()
4072 {
4073 GtkWidget *connect_widget = m_widget;
4074 if (m_wxwindow) connect_widget = m_wxwindow;
4075
4076 return connect_widget;
4077 }
4078
4079 bool wxWindowGTK::GTKIsOwnWindow(GdkWindow *window) const
4080 {
4081 wxArrayGdkWindows windowsThis;
4082 GdkWindow * const winThis = GTKGetWindow(windowsThis);
4083
4084 return winThis ? window == winThis
4085 : windowsThis.Index(window) != wxNOT_FOUND;
4086 }
4087
4088 GdkWindow *wxWindowGTK::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
4089 {
4090 return m_wxwindow ? GTKGetDrawingWindow() : m_widget->window;
4091 }
4092
4093 bool wxWindowGTK::SetFont( const wxFont &font )
4094 {
4095 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
4096
4097 if (!wxWindowBase::SetFont(font))
4098 return false;
4099
4100 // apply style change (forceStyle=true so that new style is applied
4101 // even if the font changed from valid to wxNullFont):
4102 GTKApplyWidgetStyle(true);
4103
4104 return true;
4105 }
4106
4107 void wxWindowGTK::DoCaptureMouse()
4108 {
4109 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4110
4111 GdkWindow *window = NULL;
4112 if (m_wxwindow)
4113 window = GTKGetDrawingWindow();
4114 else
4115 window = GetConnectWidget()->window;
4116
4117 wxCHECK_RET( window, wxT("CaptureMouse() failed") );
4118
4119 const wxCursor* cursor = &m_cursor;
4120 if (!cursor->Ok())
4121 cursor = wxSTANDARD_CURSOR;
4122
4123 gdk_pointer_grab( window, FALSE,
4124 (GdkEventMask)
4125 (GDK_BUTTON_PRESS_MASK |
4126 GDK_BUTTON_RELEASE_MASK |
4127 GDK_POINTER_MOTION_HINT_MASK |
4128 GDK_POINTER_MOTION_MASK),
4129 NULL,
4130 cursor->GetCursor(),
4131 (guint32)GDK_CURRENT_TIME );
4132 g_captureWindow = this;
4133 g_captureWindowHasMouse = true;
4134 }
4135
4136 void wxWindowGTK::DoReleaseMouse()
4137 {
4138 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4139
4140 wxCHECK_RET( g_captureWindow, wxT("can't release mouse - not captured") );
4141
4142 g_captureWindow = NULL;
4143
4144 GdkWindow *window = NULL;
4145 if (m_wxwindow)
4146 window = GTKGetDrawingWindow();
4147 else
4148 window = GetConnectWidget()->window;
4149
4150 if (!window)
4151 return;
4152
4153 gdk_pointer_ungrab ( (guint32)GDK_CURRENT_TIME );
4154 }
4155
4156 void wxWindowGTK::GTKReleaseMouseAndNotify()
4157 {
4158 DoReleaseMouse();
4159 wxMouseCaptureLostEvent evt(GetId());
4160 evt.SetEventObject( this );
4161 HandleWindowEvent( evt );
4162 }
4163
4164 /* static */
4165 wxWindow *wxWindowBase::GetCapture()
4166 {
4167 return (wxWindow *)g_captureWindow;
4168 }
4169
4170 bool wxWindowGTK::IsRetained() const
4171 {
4172 return false;
4173 }
4174
4175 void wxWindowGTK::SetScrollbar(int orient,
4176 int pos,
4177 int thumbVisible,
4178 int range,
4179 bool WXUNUSED(update))
4180 {
4181 const int dir = ScrollDirFromOrient(orient);
4182 GtkRange* const sb = m_scrollBar[dir];
4183 wxCHECK_RET( sb, wxT("this window is not scrollable") );
4184
4185 if (range <= 0)
4186 {
4187 // GtkRange requires upper > lower
4188 range =
4189 thumbVisible = 1;
4190 }
4191
4192 GtkAdjustment * const adj = sb->adjustment;
4193 adj->step_increment = 1;
4194 adj->page_increment =
4195 adj->page_size = thumbVisible;
4196 adj->value = pos;
4197
4198 g_signal_handlers_block_by_func(
4199 sb, (void*)gtk_scrollbar_value_changed, this);
4200
4201 gtk_range_set_range(sb, 0, range);
4202 m_scrollPos[dir] = sb->adjustment->value;
4203
4204 g_signal_handlers_unblock_by_func(
4205 sb, (void*)gtk_scrollbar_value_changed, this);
4206 }
4207
4208 void wxWindowGTK::SetScrollPos(int orient, int pos, bool WXUNUSED(refresh))
4209 {
4210 const int dir = ScrollDirFromOrient(orient);
4211 GtkRange * const sb = m_scrollBar[dir];
4212 wxCHECK_RET( sb, wxT("this window is not scrollable") );
4213
4214 // This check is more than an optimization. Without it, the slider
4215 // will not move smoothly while tracking when using wxScrollHelper.
4216 if (GetScrollPos(orient) != pos)
4217 {
4218 g_signal_handlers_block_by_func(
4219 sb, (void*)gtk_scrollbar_value_changed, this);
4220
4221 gtk_range_set_value(sb, pos);
4222 m_scrollPos[dir] = sb->adjustment->value;
4223
4224 g_signal_handlers_unblock_by_func(
4225 sb, (void*)gtk_scrollbar_value_changed, this);
4226 }
4227 }
4228
4229 int wxWindowGTK::GetScrollThumb(int orient) const
4230 {
4231 GtkRange * const sb = m_scrollBar[ScrollDirFromOrient(orient)];
4232 wxCHECK_MSG( sb, 0, wxT("this window is not scrollable") );
4233
4234 return wxRound(sb->adjustment->page_size);
4235 }
4236
4237 int wxWindowGTK::GetScrollPos( int orient ) const
4238 {
4239 GtkRange * const sb = m_scrollBar[ScrollDirFromOrient(orient)];
4240 wxCHECK_MSG( sb, 0, wxT("this window is not scrollable") );
4241
4242 return wxRound(sb->adjustment->value);
4243 }
4244
4245 int wxWindowGTK::GetScrollRange( int orient ) const
4246 {
4247 GtkRange * const sb = m_scrollBar[ScrollDirFromOrient(orient)];
4248 wxCHECK_MSG( sb, 0, wxT("this window is not scrollable") );
4249
4250 return wxRound(sb->adjustment->upper);
4251 }
4252
4253 // Determine if increment is the same as +/-x, allowing for some small
4254 // difference due to possible inexactness in floating point arithmetic
4255 static inline bool IsScrollIncrement(double increment, double x)
4256 {
4257 wxASSERT(increment > 0);
4258 const double tolerance = 1.0 / 1024;
4259 return fabs(increment - fabs(x)) < tolerance;
4260 }
4261
4262 wxEventType wxWindowGTK::GTKGetScrollEventType(GtkRange* range)
4263 {
4264 wxASSERT(range == m_scrollBar[0] || range == m_scrollBar[1]);
4265
4266 const int barIndex = range == m_scrollBar[1];
4267 GtkAdjustment* adj = range->adjustment;
4268
4269 const int value = wxRound(adj->value);
4270
4271 // save previous position
4272 const double oldPos = m_scrollPos[barIndex];
4273 // update current position
4274 m_scrollPos[barIndex] = adj->value;
4275 // If event should be ignored, or integral position has not changed
4276 if (!m_hasVMT || g_blockEventsOnDrag || value == wxRound(oldPos))
4277 {
4278 return wxEVT_NULL;
4279 }
4280
4281 wxEventType eventType = wxEVT_SCROLL_THUMBTRACK;
4282 if (!m_isScrolling)
4283 {
4284 // Difference from last change event
4285 const double diff = adj->value - oldPos;
4286 const bool isDown = diff > 0;
4287
4288 if (IsScrollIncrement(adj->step_increment, diff))
4289 {
4290 eventType = isDown ? wxEVT_SCROLL_LINEDOWN : wxEVT_SCROLL_LINEUP;
4291 }
4292 else if (IsScrollIncrement(adj->page_increment, diff))
4293 {
4294 eventType = isDown ? wxEVT_SCROLL_PAGEDOWN : wxEVT_SCROLL_PAGEUP;
4295 }
4296 else if (m_mouseButtonDown)
4297 {
4298 // Assume track event
4299 m_isScrolling = true;
4300 }
4301 }
4302 return eventType;
4303 }
4304
4305 void wxWindowGTK::ScrollWindow( int dx, int dy, const wxRect* WXUNUSED(rect) )
4306 {
4307 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4308
4309 wxCHECK_RET( m_wxwindow != NULL, wxT("window needs client area for scrolling") );
4310
4311 // No scrolling requested.
4312 if ((dx == 0) && (dy == 0)) return;
4313
4314 m_clipPaintRegion = true;
4315
4316 WX_PIZZA(m_wxwindow)->scroll(dx, dy);
4317
4318 m_clipPaintRegion = false;
4319
4320 #if wxUSE_CARET
4321 bool restoreCaret = (GetCaret() != NULL && GetCaret()->IsVisible());
4322 if (restoreCaret)
4323 {
4324 wxRect caretRect(GetCaret()->GetPosition(), GetCaret()->GetSize());
4325 if (dx > 0)
4326 caretRect.width += dx;
4327 else
4328 {
4329 caretRect.x += dx; caretRect.width -= dx;
4330 }
4331 if (dy > 0)
4332 caretRect.height += dy;
4333 else
4334 {
4335 caretRect.y += dy; caretRect.height -= dy;
4336 }
4337
4338 RefreshRect(caretRect);
4339 }
4340 #endif // wxUSE_CARET
4341 }
4342
4343 void wxWindowGTK::GTKScrolledWindowSetBorder(GtkWidget* w, int wxstyle)
4344 {
4345 //RN: Note that static controls usually have no border on gtk, so maybe
4346 //it makes sense to treat that as simply no border at the wx level
4347 //as well...
4348 if (!(wxstyle & wxNO_BORDER) && !(wxstyle & wxBORDER_STATIC))
4349 {
4350 GtkShadowType gtkstyle;
4351
4352 if(wxstyle & wxBORDER_RAISED)
4353 gtkstyle = GTK_SHADOW_OUT;
4354 else if ((wxstyle & wxBORDER_SUNKEN) || (wxstyle & wxBORDER_THEME))
4355 gtkstyle = GTK_SHADOW_IN;
4356 #if 0
4357 // Now obsolete
4358 else if (wxstyle & wxBORDER_DOUBLE)
4359 gtkstyle = GTK_SHADOW_ETCHED_IN;
4360 #endif
4361 else //default
4362 gtkstyle = GTK_SHADOW_IN;
4363
4364 gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(w),
4365 gtkstyle );
4366 }
4367 }
4368
4369 void wxWindowGTK::SetWindowStyleFlag( long style )
4370 {
4371 // Updates the internal variable. NB: Now m_windowStyle bits carry the _new_ style values already
4372 wxWindowBase::SetWindowStyleFlag(style);
4373 }
4374
4375 // Find the wxWindow at the current mouse position, also returning the mouse
4376 // position.
4377 wxWindow* wxFindWindowAtPointer(wxPoint& pt)
4378 {
4379 pt = wxGetMousePosition();
4380 wxWindow* found = wxFindWindowAtPoint(pt);
4381 return found;
4382 }
4383
4384 // Get the current mouse position.
4385 wxPoint wxGetMousePosition()
4386 {
4387 /* This crashes when used within wxHelpContext,
4388 so we have to use the X-specific implementation below.
4389 gint x, y;
4390 GdkModifierType *mask;
4391 (void) gdk_window_get_pointer(NULL, &x, &y, mask);
4392
4393 return wxPoint(x, y);
4394 */
4395
4396 int x, y;
4397 GdkWindow* windowAtPtr = gdk_window_at_pointer(& x, & y);
4398
4399 Display *display = windowAtPtr ? GDK_WINDOW_XDISPLAY(windowAtPtr) : GDK_DISPLAY();
4400 Window rootWindow = RootWindowOfScreen (DefaultScreenOfDisplay(display));
4401 Window rootReturn, childReturn;
4402 int rootX, rootY, winX, winY;
4403 unsigned int maskReturn;
4404
4405 XQueryPointer (display,
4406 rootWindow,
4407 &rootReturn,
4408 &childReturn,
4409 &rootX, &rootY, &winX, &winY, &maskReturn);
4410 return wxPoint(rootX, rootY);
4411
4412 }
4413
4414 GdkWindow* wxWindowGTK::GTKGetDrawingWindow() const
4415 {
4416 GdkWindow* window = NULL;
4417 if (m_wxwindow)
4418 window = WX_PIZZA(m_wxwindow)->m_draw_window;
4419 return window;
4420 }
4421
4422 // ----------------------------------------------------------------------------
4423 // freeze/thaw
4424 // ----------------------------------------------------------------------------
4425
4426 extern "C"
4427 {
4428
4429 // this is called if we attempted to freeze unrealized widget when it finally
4430 // is realized (and so can be frozen):
4431 static void wx_frozen_widget_realize(GtkWidget* w, wxWindowGTK* win)
4432 {
4433 wxASSERT( w && !GTK_WIDGET_NO_WINDOW(w) );
4434 wxASSERT( GTK_WIDGET_REALIZED(w) );
4435
4436 g_signal_handlers_disconnect_by_func
4437 (
4438 w,
4439 (void*)wx_frozen_widget_realize,
4440 win
4441 );
4442
4443 GdkWindow* window = win->GTKGetDrawingWindow();
4444 if (window == NULL)
4445 window = w->window;
4446 gdk_window_freeze_updates(window);
4447 }
4448
4449 } // extern "C"
4450
4451 void wxWindowGTK::GTKFreezeWidget(GtkWidget *w)
4452 {
4453 if ( !w || GTK_WIDGET_NO_WINDOW(w) )
4454 return; // window-less widget, cannot be frozen
4455
4456 if ( !GTK_WIDGET_REALIZED(w) )
4457 {
4458 // we can't thaw unrealized widgets because they don't have GdkWindow,
4459 // so set it up to be done immediately after realization:
4460 g_signal_connect_after
4461 (
4462 w,
4463 "realize",
4464 G_CALLBACK(wx_frozen_widget_realize),
4465 this
4466 );
4467 return;
4468 }
4469
4470 GdkWindow* window = GTKGetDrawingWindow();
4471 if (window == NULL)
4472 window = w->window;
4473 gdk_window_freeze_updates(window);
4474 }
4475
4476 void wxWindowGTK::GTKThawWidget(GtkWidget *w)
4477 {
4478 if ( !w || GTK_WIDGET_NO_WINDOW(w) )
4479 return; // window-less widget, cannot be frozen
4480
4481 if ( !GTK_WIDGET_REALIZED(w) )
4482 {
4483 // the widget wasn't realized yet, no need to thaw
4484 g_signal_handlers_disconnect_by_func
4485 (
4486 w,
4487 (void*)wx_frozen_widget_realize,
4488 this
4489 );
4490 return;
4491 }
4492
4493 GdkWindow* window = GTKGetDrawingWindow();
4494 if (window == NULL)
4495 window = w->window;
4496 gdk_window_thaw_updates(window);
4497 }
4498
4499 void wxWindowGTK::DoFreeze()
4500 {
4501 GTKFreezeWidget(m_widget);
4502 if ( m_wxwindow && m_widget != m_wxwindow )
4503 GTKFreezeWidget(m_wxwindow);
4504 }
4505
4506 void wxWindowGTK::DoThaw()
4507 {
4508 GTKThawWidget(m_widget);
4509 if ( m_wxwindow && m_widget != m_wxwindow )
4510 GTKThawWidget(m_wxwindow);
4511 }
wxWidgets (Impactor)