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