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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/gtk/window.cpp
3 // Purpose: wxWindowGTK implementation
4 // Author: Robert Roebling
5 // Id: $Id$
6 // Copyright: (c) 1998 Robert Roebling, Julian Smart
7 // Licence: wxWindows licence
8 /////////////////////////////////////////////////////////////////////////////
9
10 // For compilers that support precompilation, includes "wx.h".
11 #include "wx/wxprec.h"
12
13 #ifdef __VMS
14 #define XWarpPointer XWARPPOINTER
15 #endif
16
17 #include "wx/window.h"
18
19 #ifndef WX_PRECOMP
20 #include "wx/log.h"
21 #include "wx/app.h"
22 #include "wx/toplevel.h"
23 #include "wx/dcclient.h"
24 #include "wx/menu.h"
25 #include "wx/settings.h"
26 #include "wx/msgdlg.h"
27 #include "wx/math.h"
28 #endif
29
30 #include "wx/dnd.h"
31 #include "wx/tooltip.h"
32 #include "wx/caret.h"
33 #include "wx/fontutil.h"
34 #include "wx/sysopt.h"
35
36 #include <ctype.h>
37
38 #include "wx/gtk/private.h"
39 #include "wx/gtk/private/win_gtk.h"
40
41 #include <gdk/gdkx.h>
42
43 #include <gdk/gdkkeysyms.h>
44 #if GTK_CHECK_VERSION(3,0,0)
45 #include <gdk/gdkkeysyms-compat.h>
46 #endif
47
48 #if !GTK_CHECK_VERSION(2,10,0)
49 // GTK+ can reliably detect Meta key state only since 2.10 when
50 // GDK_META_MASK was introduced -- there wasn't any way to detect it
51 // in older versions. wxGTK used GDK_MOD2_MASK for this purpose, but
52 // GDK_MOD2_MASK is documented as:
53 //
54 // the fifth modifier key (it depends on the modifier mapping of the X
55 // server which key is interpreted as this modifier)
56 //
57 // In other words, it isn't guaranteed to map to Meta. This is a real
58 // problem: it is common to map NumLock to it (in fact, it's an exception
59 // if the X server _doesn't_ use it for NumLock). So the old code caused
60 // wxKeyEvent::MetaDown() to always return true as long as NumLock was on
61 // on many systems, which broke all applications using
62 // wxKeyEvent::GetModifiers() to check modifiers state (see e.g. here:
63 // http://tinyurl.com/56lsk2).
64 //
65 // Because of this, it's better to not detect Meta key state at all than
66 // to detect it incorrectly. Hence the following #define, which causes
67 // m_metaDown to be always set to false.
68 #define GDK_META_MASK 0
69 #endif
70
71 //-----------------------------------------------------------------------------
72 // documentation on internals
73 //-----------------------------------------------------------------------------
74
75 /*
76 I have been asked several times about writing some documentation about
77 the GTK port of wxWidgets, especially its internal structures. Obviously,
78 you cannot understand wxGTK without knowing a little about the GTK, but
79 some more information about what the wxWindow, which is the base class
80 for all other window classes, does seems required as well.
81
82 I)
83
84 What does wxWindow do? It contains the common interface for the following
85 jobs of its descendants:
86
87 1) Define the rudimentary behaviour common to all window classes, such as
88 resizing, intercepting user input (so as to make it possible to use these
89 events for special purposes in a derived class), window names etc.
90
91 2) Provide the possibility to contain and manage children, if the derived
92 class is allowed to contain children, which holds true for those window
93 classes which do not display a native GTK widget. To name them, these
94 classes are wxPanel, wxScrolledWindow, wxDialog, wxFrame. The MDI frame-
95 work classes are a special case and are handled a bit differently from
96 the rest. The same holds true for the wxNotebook class.
97
98 3) Provide the possibility to draw into a client area of a window. This,
99 too, only holds true for classes that do not display a native GTK widget
100 as above.
101
102 4) Provide the entire mechanism for scrolling widgets. This actual inter-
103 face for this is usually in wxScrolledWindow, but the GTK implementation
104 is in this class.
105
106 5) A multitude of helper or extra methods for special purposes, such as
107 Drag'n'Drop, managing validators etc.
108
109 6) Display a border (sunken, raised, simple or none).
110
111 Normally one might expect, that one wxWidgets window would always correspond
112 to one GTK widget. Under GTK, there is no such all-round widget that has all
113 the functionality. Moreover, the GTK defines a client area as a different
114 widget from the actual widget you are handling. Last but not least some
115 special classes (e.g. wxFrame) handle different categories of widgets and
116 still have the possibility to draw something in the client area.
117 It was therefore required to write a special purpose GTK widget, that would
118 represent a client area in the sense of wxWidgets capable to do the jobs
119 2), 3) and 4). I have written this class and it resides in win_gtk.c of
120 this directory.
121
122 All windows must have a widget, with which they interact with other under-
123 lying GTK widgets. It is this widget, e.g. that has to be resized etc and
124 the wxWindow class has a member variable called m_widget which holds a
125 pointer to this widget. When the window class represents a GTK native widget,
126 this is (in most cases) the only GTK widget the class manages. E.g. the
127 wxStaticText class handles only a GtkLabel widget a pointer to which you
128 can find in m_widget (defined in wxWindow)
129
130 When the class has a client area for drawing into and for containing children
131 it has to handle the client area widget (of the type wxPizza, defined in
132 win_gtk.cpp), but there could be any number of widgets, handled by a class.
133 The common rule for all windows is only, that the widget that interacts with
134 the rest of GTK must be referenced in m_widget and all other widgets must be
135 children of this widget on the GTK level. The top-most widget, which also
136 represents the client area, must be in the m_wxwindow field and must be of
137 the type wxPizza.
138
139 As I said, the window classes that display a GTK native widget only have
140 one widget, so in the case of e.g. the wxButton class m_widget holds a
141 pointer to a GtkButton widget. But windows with client areas (for drawing
142 and children) have a m_widget field that is a pointer to a GtkScrolled-
143 Window and a m_wxwindow field that is pointer to a wxPizza and this
144 one is (in the GTK sense) a child of the GtkScrolledWindow.
145
146 If the m_wxwindow field is set, then all input to this widget is inter-
147 cepted and sent to the wxWidgets class. If not, all input to the widget
148 that gets pointed to by m_widget gets intercepted and sent to the class.
149
150 II)
151
152 The design of scrolling in wxWidgets is markedly different from that offered
153 by the GTK itself and therefore we cannot simply take it as it is. In GTK,
154 clicking on a scrollbar belonging to scrolled window will inevitably move
155 the window. In wxWidgets, the scrollbar will only emit an event, send this
156 to (normally) a wxScrolledWindow and that class will call ScrollWindow()
157 which actually moves the window and its sub-windows. Note that wxPizza
158 memorizes how much it has been scrolled but that wxWidgets forgets this
159 so that the two coordinates systems have to be kept in synch. This is done
160 in various places using the pizza->m_scroll_x and pizza->m_scroll_y values.
161
162 III)
163
164 Singularly the most broken code in GTK is the code that is supposed to
165 inform subwindows (child windows) about new positions. Very often, duplicate
166 events are sent without changes in size or position, equally often no
167 events are sent at all (All this is due to a bug in the GtkContainer code
168 which got fixed in GTK 1.2.6). For that reason, wxGTK completely ignores
169 GTK's own system and it simply waits for size events for toplevel windows
170 and then iterates down the respective size events to all window. This has
171 the disadvantage that windows might get size events before the GTK widget
172 actually has the reported size. This doesn't normally pose any problem, but
173 the OpenGL drawing routines rely on correct behaviour. Therefore, I have
174 added the m_nativeSizeEvents flag, which is true only for the OpenGL canvas,
175 i.e. the wxGLCanvas will emit a size event, when (and not before) the X11
176 window that is used for OpenGL output really has that size (as reported by
177 GTK).
178
179 IV)
180
181 If someone at some point of time feels the immense desire to have a look at,
182 change or attempt to optimise the Refresh() logic, this person will need an
183 intimate understanding of what "draw" and "expose" events are and what
184 they are used for, in particular when used in connection with GTK's
185 own windowless widgets. Beware.
186
187 V)
188
189 Cursors, too, have been a constant source of pleasure. The main difficulty
190 is that a GdkWindow inherits a cursor if the programmer sets a new cursor
191 for the parent. To prevent this from doing too much harm, SetCursor calls
192 GTKUpdateCursor, which will recursively re-set the cursors of all child windows.
193 Also don't forget that cursors (like much else) are connected to GdkWindows,
194 not GtkWidgets and that the "window" field of a GtkWidget might very well
195 point to the GdkWindow of the parent widget (-> "window-less widget") and
196 that the two obviously have very different meanings.
197 */
198
199 //-----------------------------------------------------------------------------
200 // data
201 //-----------------------------------------------------------------------------
202
203 // Don't allow event propagation during drag
204 bool g_blockEventsOnDrag;
205 // Don't allow mouse event propagation during scroll
206 bool g_blockEventsOnScroll;
207 extern wxCursor g_globalCursor;
208
209 // mouse capture state: the window which has it and if the mouse is currently
210 // inside it
211 static wxWindowGTK *g_captureWindow = NULL;
212 static bool g_captureWindowHasMouse = false;
213
214 // The window that currently has focus:
215 static wxWindowGTK *gs_currentFocus = NULL;
216 // The window that is scheduled to get focus in the next event loop iteration
217 // or NULL if there's no pending focus change:
218 static wxWindowGTK *gs_pendingFocus = NULL;
219
220 // the window that has deferred focus-out event pending, if any (see
221 // GTKAddDeferredFocusOut() for details)
222 static wxWindowGTK *gs_deferredFocusOut = NULL;
223
224 // global variables because GTK+ DnD want to have the
225 // mouse event that caused it
226 GdkEvent *g_lastMouseEvent = NULL;
227 int g_lastButtonNumber = 0;
228
229 //-----------------------------------------------------------------------------
230 // debug
231 //-----------------------------------------------------------------------------
232
233 // the trace mask used for the focus debugging messages
234 #define TRACE_FOCUS wxT("focus")
235
236 //-----------------------------------------------------------------------------
237 // "size_request" of m_widget
238 //-----------------------------------------------------------------------------
239
240 extern "C" {
241 static void
242 wxgtk_window_size_request_callback(GtkWidget * WXUNUSED(widget),
243 GtkRequisition *requisition,
244 wxWindow * win)
245 {
246 int w, h;
247 win->GetSize( &w, &h );
248 if (w < 2)
249 w = 2;
250 if (h < 2)
251 h = 2;
252
253 requisition->height = h;
254 requisition->width = w;
255 }
256 }
257
258 //-----------------------------------------------------------------------------
259 // "expose_event" of m_wxwindow
260 //-----------------------------------------------------------------------------
261
262 extern "C" {
263 static gboolean
264 gtk_window_expose_callback( GtkWidget*,
265 GdkEventExpose *gdk_event,
266 wxWindow *win )
267 {
268 if (gdk_event->window == win->GTKGetDrawingWindow())
269 {
270 win->GetUpdateRegion() = wxRegion( gdk_event->region );
271 win->GtkSendPaintEvents();
272 }
273 // Let parent window draw window-less widgets
274 return FALSE;
275 }
276 }
277
278 #ifndef __WXUNIVERSAL__
279 //-----------------------------------------------------------------------------
280 // "expose_event" from m_wxwindow->parent, for drawing border
281 //-----------------------------------------------------------------------------
282
283 extern "C" {
284 static gboolean
285 expose_event_border(GtkWidget* widget, GdkEventExpose* gdk_event, wxWindow* win)
286 {
287 if (gdk_event->window != gtk_widget_get_parent_window(win->m_wxwindow))
288 return false;
289
290 if (!win->IsShown())
291 return false;
292
293 GtkAllocation alloc;
294 gtk_widget_get_allocation(win->m_wxwindow, &alloc);
295 const int x = alloc.x;
296 const int y = alloc.y;
297 const int w = alloc.width;
298 const int h = alloc.height;
299
300 if (w <= 0 || h <= 0)
301 return false;
302
303 if (win->HasFlag(wxBORDER_SIMPLE))
304 {
305 gdk_draw_rectangle(gdk_event->window,
306 gtk_widget_get_style(widget)->black_gc, false, x, y, w - 1, h - 1);
307 }
308 else
309 {
310 GtkShadowType shadow = GTK_SHADOW_IN;
311 if (win->HasFlag(wxBORDER_RAISED))
312 shadow = GTK_SHADOW_OUT;
313
314 // Style detail to use
315 const char* detail;
316 if (win->m_widget == win->m_wxwindow)
317 // for non-scrollable wxWindows
318 detail = "entry";
319 else
320 // for scrollable ones
321 detail = "viewport";
322
323 // clip rect is required to avoid painting background
324 // over upper left (w,h) of parent window
325 GdkRectangle clipRect = { x, y, w, h };
326 gtk_paint_shadow(
327 gtk_widget_get_style(win->m_wxwindow), gdk_event->window, GTK_STATE_NORMAL,
328 shadow, &clipRect, wxGTKPrivate::GetEntryWidget(), detail, x, y, w, h);
329 }
330 return false;
331 }
332 }
333
334 //-----------------------------------------------------------------------------
335 // "parent_set" from m_wxwindow
336 //-----------------------------------------------------------------------------
337
338 extern "C" {
339 static void
340 parent_set(GtkWidget* widget, GtkObject* old_parent, wxWindow* win)
341 {
342 if (old_parent)
343 {
344 g_signal_handlers_disconnect_by_func(
345 old_parent, (void*)expose_event_border, win);
346 }
347 GtkWidget* parent = gtk_widget_get_parent(widget);
348 if (parent)
349 {
350 g_signal_connect_after(parent, "expose_event",
351 G_CALLBACK(expose_event_border), win);
352 }
353 }
354 }
355 #endif // !__WXUNIVERSAL__
356
357 //-----------------------------------------------------------------------------
358 // "key_press_event" from any window
359 //-----------------------------------------------------------------------------
360
361 // These are used when transforming Ctrl-alpha to ascii values 1-26
362 inline bool wxIsLowerChar(int code)
363 {
364 return (code >= 'a' && code <= 'z' );
365 }
366
367 inline bool wxIsUpperChar(int code)
368 {
369 return (code >= 'A' && code <= 'Z' );
370 }
371
372
373 // set WXTRACE to this to see the key event codes on the console
374 #define TRACE_KEYS wxT("keyevent")
375
376 // translates an X key symbol to WXK_XXX value
377 //
378 // if isChar is true it means that the value returned will be used for EVT_CHAR
379 // event and then we choose the logical WXK_XXX, i.e. '/' for GDK_KP_Divide,
380 // for example, while if it is false it means that the value is going to be
381 // used for KEY_DOWN/UP events and then we translate GDK_KP_Divide to
382 // WXK_NUMPAD_DIVIDE
383 static long wxTranslateKeySymToWXKey(KeySym keysym, bool isChar)
384 {
385 long key_code;
386
387 switch ( keysym )
388 {
389 // Shift, Control and Alt don't generate the CHAR events at all
390 case GDK_Shift_L:
391 case GDK_Shift_R:
392 key_code = isChar ? 0 : WXK_SHIFT;
393 break;
394 case GDK_Control_L:
395 case GDK_Control_R:
396 key_code = isChar ? 0 : WXK_CONTROL;
397 break;
398 case GDK_Meta_L:
399 case GDK_Meta_R:
400 case GDK_Alt_L:
401 case GDK_Alt_R:
402 case GDK_Super_L:
403 case GDK_Super_R:
404 key_code = isChar ? 0 : WXK_ALT;
405 break;
406
407 // neither do the toggle modifies
408 case GDK_Scroll_Lock:
409 key_code = isChar ? 0 : WXK_SCROLL;
410 break;
411
412 case GDK_Caps_Lock:
413 key_code = isChar ? 0 : WXK_CAPITAL;
414 break;
415
416 case GDK_Num_Lock:
417 key_code = isChar ? 0 : WXK_NUMLOCK;
418 break;
419
420
421 // various other special keys
422 case GDK_Menu:
423 key_code = WXK_MENU;
424 break;
425
426 case GDK_Help:
427 key_code = WXK_HELP;
428 break;
429
430 case GDK_BackSpace:
431 key_code = WXK_BACK;
432 break;
433
434 case GDK_ISO_Left_Tab:
435 case GDK_Tab:
436 key_code = WXK_TAB;
437 break;
438
439 case GDK_Linefeed:
440 case GDK_Return:
441 key_code = WXK_RETURN;
442 break;
443
444 case GDK_Clear:
445 key_code = WXK_CLEAR;
446 break;
447
448 case GDK_Pause:
449 key_code = WXK_PAUSE;
450 break;
451
452 case GDK_Select:
453 key_code = WXK_SELECT;
454 break;
455
456 case GDK_Print:
457 key_code = WXK_PRINT;
458 break;
459
460 case GDK_Execute:
461 key_code = WXK_EXECUTE;
462 break;
463
464 case GDK_Escape:
465 key_code = WXK_ESCAPE;
466 break;
467
468 // cursor and other extended keyboard keys
469 case GDK_Delete:
470 key_code = WXK_DELETE;
471 break;
472
473 case GDK_Home:
474 key_code = WXK_HOME;
475 break;
476
477 case GDK_Left:
478 key_code = WXK_LEFT;
479 break;
480
481 case GDK_Up:
482 key_code = WXK_UP;
483 break;
484
485 case GDK_Right:
486 key_code = WXK_RIGHT;
487 break;
488
489 case GDK_Down:
490 key_code = WXK_DOWN;
491 break;
492
493 case GDK_Prior: // == GDK_Page_Up
494 key_code = WXK_PAGEUP;
495 break;
496
497 case GDK_Next: // == GDK_Page_Down
498 key_code = WXK_PAGEDOWN;
499 break;
500
501 case GDK_End:
502 key_code = WXK_END;
503 break;
504
505 case GDK_Begin:
506 key_code = WXK_HOME;
507 break;
508
509 case GDK_Insert:
510 key_code = WXK_INSERT;
511 break;
512
513
514 // numpad keys
515 case GDK_KP_0:
516 case GDK_KP_1:
517 case GDK_KP_2:
518 case GDK_KP_3:
519 case GDK_KP_4:
520 case GDK_KP_5:
521 case GDK_KP_6:
522 case GDK_KP_7:
523 case GDK_KP_8:
524 case GDK_KP_9:
525 key_code = (isChar ? '0' : int(WXK_NUMPAD0)) + keysym - GDK_KP_0;
526 break;
527
528 case GDK_KP_Space:
529 key_code = isChar ? ' ' : int(WXK_NUMPAD_SPACE);
530 break;
531
532 case GDK_KP_Tab:
533 key_code = isChar ? WXK_TAB : WXK_NUMPAD_TAB;
534 break;
535
536 case GDK_KP_Enter:
537 key_code = isChar ? WXK_RETURN : WXK_NUMPAD_ENTER;
538 break;
539
540 case GDK_KP_F1:
541 key_code = isChar ? WXK_F1 : WXK_NUMPAD_F1;
542 break;
543
544 case GDK_KP_F2:
545 key_code = isChar ? WXK_F2 : WXK_NUMPAD_F2;
546 break;
547
548 case GDK_KP_F3:
549 key_code = isChar ? WXK_F3 : WXK_NUMPAD_F3;
550 break;
551
552 case GDK_KP_F4:
553 key_code = isChar ? WXK_F4 : WXK_NUMPAD_F4;
554 break;
555
556 case GDK_KP_Home:
557 key_code = isChar ? WXK_HOME : WXK_NUMPAD_HOME;
558 break;
559
560 case GDK_KP_Left:
561 key_code = isChar ? WXK_LEFT : WXK_NUMPAD_LEFT;
562 break;
563
564 case GDK_KP_Up:
565 key_code = isChar ? WXK_UP : WXK_NUMPAD_UP;
566 break;
567
568 case GDK_KP_Right:
569 key_code = isChar ? WXK_RIGHT : WXK_NUMPAD_RIGHT;
570 break;
571
572 case GDK_KP_Down:
573 key_code = isChar ? WXK_DOWN : WXK_NUMPAD_DOWN;
574 break;
575
576 case GDK_KP_Prior: // == GDK_KP_Page_Up
577 key_code = isChar ? WXK_PAGEUP : WXK_NUMPAD_PAGEUP;
578 break;
579
580 case GDK_KP_Next: // == GDK_KP_Page_Down
581 key_code = isChar ? WXK_PAGEDOWN : WXK_NUMPAD_PAGEDOWN;
582 break;
583
584 case GDK_KP_End:
585 key_code = isChar ? WXK_END : WXK_NUMPAD_END;
586 break;
587
588 case GDK_KP_Begin:
589 key_code = isChar ? WXK_HOME : WXK_NUMPAD_BEGIN;
590 break;
591
592 case GDK_KP_Insert:
593 key_code = isChar ? WXK_INSERT : WXK_NUMPAD_INSERT;
594 break;
595
596 case GDK_KP_Delete:
597 key_code = isChar ? WXK_DELETE : WXK_NUMPAD_DELETE;
598 break;
599
600 case GDK_KP_Equal:
601 key_code = isChar ? '=' : int(WXK_NUMPAD_EQUAL);
602 break;
603
604 case GDK_KP_Multiply:
605 key_code = isChar ? '*' : int(WXK_NUMPAD_MULTIPLY);
606 break;
607
608 case GDK_KP_Add:
609 key_code = isChar ? '+' : int(WXK_NUMPAD_ADD);
610 break;
611
612 case GDK_KP_Separator:
613 // FIXME: what is this?
614 key_code = isChar ? '.' : int(WXK_NUMPAD_SEPARATOR);
615 break;
616
617 case GDK_KP_Subtract:
618 key_code = isChar ? '-' : int(WXK_NUMPAD_SUBTRACT);
619 break;
620
621 case GDK_KP_Decimal:
622 key_code = isChar ? '.' : int(WXK_NUMPAD_DECIMAL);
623 break;
624
625 case GDK_KP_Divide:
626 key_code = isChar ? '/' : int(WXK_NUMPAD_DIVIDE);
627 break;
628
629
630 // function keys
631 case GDK_F1:
632 case GDK_F2:
633 case GDK_F3:
634 case GDK_F4:
635 case GDK_F5:
636 case GDK_F6:
637 case GDK_F7:
638 case GDK_F8:
639 case GDK_F9:
640 case GDK_F10:
641 case GDK_F11:
642 case GDK_F12:
643 key_code = WXK_F1 + keysym - GDK_F1;
644 break;
645
646 default:
647 key_code = 0;
648 }
649
650 return key_code;
651 }
652
653 static inline bool wxIsAsciiKeysym(KeySym ks)
654 {
655 return ks < 256;
656 }
657
658 static void wxFillOtherKeyEventFields(wxKeyEvent& event,
659 wxWindowGTK *win,
660 GdkEventKey *gdk_event)
661 {
662 event.SetTimestamp( gdk_event->time );
663 event.SetId(win->GetId());
664
665 event.m_shiftDown = (gdk_event->state & GDK_SHIFT_MASK) != 0;
666 event.m_controlDown = (gdk_event->state & GDK_CONTROL_MASK) != 0;
667 event.m_altDown = (gdk_event->state & GDK_MOD1_MASK) != 0;
668 event.m_metaDown = (gdk_event->state & GDK_META_MASK) != 0;
669
670 // Normally we take the state of modifiers directly from the low level GDK
671 // event but unfortunately GDK uses a different convention from MSW for the
672 // key events corresponding to the modifier keys themselves: in it, when
673 // e.g. Shift key is pressed, GDK_SHIFT_MASK is not set while it is set
674 // when Shift is released. Under MSW the situation is exactly reversed and
675 // the modifier corresponding to the key is set when it is pressed and
676 // unset when it is released. To ensure consistent behaviour between
677 // platforms (and because it seems to make slightly more sense, although
678 // arguably both behaviours are reasonable) we follow MSW here.
679 //
680 // Final notice: we set the flags to the desired value instead of just
681 // inverting them because they are not set correctly (i.e. in the same way
682 // as for the real events generated by the user) for wxUIActionSimulator-
683 // produced events and it seems better to keep that class code the same
684 // among all platforms and fix the discrepancy here instead of adding
685 // wxGTK-specific code to wxUIActionSimulator.
686 const bool isPress = gdk_event->type == GDK_KEY_PRESS;
687 switch ( gdk_event->keyval )
688 {
689 case GDK_Shift_L:
690 case GDK_Shift_R:
691 event.m_shiftDown = isPress;
692 break;
693
694 case GDK_Control_L:
695 case GDK_Control_R:
696 event.m_controlDown = isPress;
697 break;
698
699 case GDK_Alt_L:
700 case GDK_Alt_R:
701 event.m_altDown = isPress;
702 break;
703
704 case GDK_Meta_L:
705 case GDK_Meta_R:
706 case GDK_Super_L:
707 case GDK_Super_R:
708 event.m_metaDown = isPress;
709 break;
710 }
711
712 event.m_rawCode = (wxUint32) gdk_event->keyval;
713 event.m_rawFlags = gdk_event->hardware_keycode;
714
715 wxGetMousePosition(&event.m_x, &event.m_y);
716 win->ScreenToClient(&event.m_x, &event.m_y);
717 event.SetEventObject( win );
718 }
719
720
721 static bool
722 wxTranslateGTKKeyEventToWx(wxKeyEvent& event,
723 wxWindowGTK *win,
724 GdkEventKey *gdk_event)
725 {
726 // VZ: it seems that GDK_KEY_RELEASE event doesn't set event->string
727 // but only event->keyval which is quite useless to us, so remember
728 // the last character from GDK_KEY_PRESS and reuse it as last resort
729 //
730 // NB: should be MT-safe as we're always called from the main thread only
731 static struct
732 {
733 KeySym keysym;
734 long keycode;
735 } s_lastKeyPress = { 0, 0 };
736
737 KeySym keysym = gdk_event->keyval;
738
739 wxLogTrace(TRACE_KEYS, wxT("Key %s event: keysym = %ld"),
740 event.GetEventType() == wxEVT_KEY_UP ? wxT("release")
741 : wxT("press"),
742 keysym);
743
744 long key_code = wxTranslateKeySymToWXKey(keysym, false /* !isChar */);
745
746 if ( !key_code )
747 {
748 // do we have the translation or is it a plain ASCII character?
749 if ( (gdk_event->length == 1) || wxIsAsciiKeysym(keysym) )
750 {
751 // we should use keysym if it is ASCII as X does some translations
752 // like "I pressed while Control is down" => "Ctrl-I" == "TAB"
753 // which we don't want here (but which we do use for OnChar())
754 if ( !wxIsAsciiKeysym(keysym) )
755 {
756 keysym = (KeySym)gdk_event->string[0];
757 }
758
759 // we want to always get the same key code when the same key is
760 // pressed regardless of the state of the modifiers, i.e. on a
761 // standard US keyboard pressing '5' or '%' ('5' key with
762 // Shift) should result in the same key code in OnKeyDown():
763 // '5' (although OnChar() will get either '5' or '%').
764 //
765 // to do it we first translate keysym to keycode (== scan code)
766 // and then back but always using the lower register
767 Display *dpy = (Display *)wxGetDisplay();
768 KeyCode keycode = XKeysymToKeycode(dpy, keysym);
769
770 wxLogTrace(TRACE_KEYS, wxT("\t-> keycode %d"), keycode);
771
772 KeySym keysymNormalized = XKeycodeToKeysym(dpy, keycode, 0);
773
774 // use the normalized, i.e. lower register, keysym if we've
775 // got one
776 key_code = keysymNormalized ? keysymNormalized : keysym;
777
778 // as explained above, we want to have lower register key codes
779 // normally but for the letter keys we want to have the upper ones
780 //
781 // NB: don't use XConvertCase() here, we want to do it for letters
782 // only
783 key_code = toupper(key_code);
784 }
785 else // non ASCII key, what to do?
786 {
787 // by default, ignore it
788 key_code = 0;
789
790 // but if we have cached information from the last KEY_PRESS
791 if ( gdk_event->type == GDK_KEY_RELEASE )
792 {
793 // then reuse it
794 if ( keysym == s_lastKeyPress.keysym )
795 {
796 key_code = s_lastKeyPress.keycode;
797 }
798 }
799 }
800
801 if ( gdk_event->type == GDK_KEY_PRESS )
802 {
803 // remember it to be reused for KEY_UP event later
804 s_lastKeyPress.keysym = keysym;
805 s_lastKeyPress.keycode = key_code;
806 }
807 }
808
809 wxLogTrace(TRACE_KEYS, wxT("\t-> wxKeyCode %ld"), key_code);
810
811 // sending unknown key events doesn't really make sense
812 if ( !key_code )
813 return false;
814
815 event.m_keyCode = key_code;
816
817 #if wxUSE_UNICODE
818 event.m_uniChar = gdk_keyval_to_unicode(key_code ? key_code : keysym);
819 if ( !event.m_uniChar && event.m_keyCode <= WXK_DELETE )
820 {
821 // Set Unicode key code to the ASCII equivalent for compatibility. E.g.
822 // let RETURN generate the key event with both key and Unicode key
823 // codes of 13.
824 event.m_uniChar = event.m_keyCode;
825 }
826 #endif // wxUSE_UNICODE
827
828 // now fill all the other fields
829 wxFillOtherKeyEventFields(event, win, gdk_event);
830
831 return true;
832 }
833
834
835 struct wxGtkIMData
836 {
837 GtkIMContext *context;
838 GdkEventKey *lastKeyEvent;
839
840 wxGtkIMData()
841 {
842 context = gtk_im_multicontext_new();
843 lastKeyEvent = NULL;
844 }
845 ~wxGtkIMData()
846 {
847 g_object_unref (context);
848 }
849 };
850
851 namespace
852 {
853
854 // Send wxEVT_CHAR_HOOK event to the parent of the window and if it wasn't
855 // processed, send wxEVT_CHAR to the window itself. Return true if either of
856 // them was handled.
857 bool
858 SendCharHookAndCharEvents(const wxKeyEvent& event, wxWindow *win)
859 {
860 // wxEVT_CHAR_HOOK must be sent to the top level parent window to allow it
861 // to handle key events in all of its children unless the mouse is captured
862 // in which case we consider that the keyboard should be "captured" too.
863 if ( !g_captureWindow )
864 {
865 wxWindow * const parent = wxGetTopLevelParent(win);
866 if ( parent )
867 {
868 // We need to make a copy of the event object because it is
869 // modified while it's handled, notably its WasProcessed() flag
870 // is set after it had been processed once.
871 wxKeyEvent eventCharHook(event);
872 eventCharHook.SetEventType(wxEVT_CHAR_HOOK);
873 if ( parent->HandleWindowEvent(eventCharHook) )
874 return true;
875 }
876 }
877
878 // As above, make a copy of the event first.
879 wxKeyEvent eventChar(event);
880 eventChar.SetEventType(wxEVT_CHAR);
881 return win->HandleWindowEvent(eventChar);
882 }
883
884 } // anonymous namespace
885
886 extern "C" {
887 static gboolean
888 gtk_window_key_press_callback( GtkWidget *WXUNUSED(widget),
889 GdkEventKey *gdk_event,
890 wxWindow *win )
891 {
892 if (!win->m_hasVMT)
893 return FALSE;
894 if (g_blockEventsOnDrag)
895 return FALSE;
896
897 wxKeyEvent event( wxEVT_KEY_DOWN );
898 bool ret = false;
899 bool return_after_IM = false;
900
901 if( wxTranslateGTKKeyEventToWx(event, win, gdk_event) )
902 {
903 // Emit KEY_DOWN event
904 ret = win->HandleWindowEvent( event );
905 }
906 else
907 {
908 // Return after IM processing as we cannot do
909 // anything with it anyhow.
910 return_after_IM = true;
911 }
912
913 if (!ret && win->m_imData)
914 {
915 win->m_imData->lastKeyEvent = gdk_event;
916
917 // We should let GTK+ IM filter key event first. According to GTK+ 2.0 API
918 // docs, if IM filter returns true, no further processing should be done.
919 // we should send the key_down event anyway.
920 bool intercepted_by_IM = gtk_im_context_filter_keypress(win->m_imData->context, gdk_event);
921 win->m_imData->lastKeyEvent = NULL;
922 if (intercepted_by_IM)
923 {
924 wxLogTrace(TRACE_KEYS, wxT("Key event intercepted by IM"));
925 return TRUE;
926 }
927 }
928
929 if (return_after_IM)
930 return FALSE;
931
932 #if wxUSE_ACCEL
933 if (!ret)
934 {
935 wxWindowGTK *ancestor = win;
936 while (ancestor)
937 {
938 int command = ancestor->GetAcceleratorTable()->GetCommand( event );
939 if (command != -1)
940 {
941 wxCommandEvent menu_event( wxEVT_COMMAND_MENU_SELECTED, command );
942 ret = ancestor->HandleWindowEvent( menu_event );
943
944 if ( !ret )
945 {
946 // if the accelerator wasn't handled as menu event, try
947 // it as button click (for compatibility with other
948 // platforms):
949 wxCommandEvent button_event( wxEVT_COMMAND_BUTTON_CLICKED, command );
950 ret = ancestor->HandleWindowEvent( button_event );
951 }
952
953 break;
954 }
955 if (ancestor->IsTopLevel())
956 break;
957 ancestor = ancestor->GetParent();
958 }
959 }
960 #endif // wxUSE_ACCEL
961
962 // Only send wxEVT_CHAR event if not processed yet. Thus, ALT-x
963 // will only be sent if it is not in an accelerator table.
964 if (!ret)
965 {
966 long key_code;
967 KeySym keysym = gdk_event->keyval;
968 // Find key code for EVT_CHAR and EVT_CHAR_HOOK events
969 key_code = wxTranslateKeySymToWXKey(keysym, true /* isChar */);
970 if ( !key_code )
971 {
972 if ( wxIsAsciiKeysym(keysym) )
973 {
974 // ASCII key
975 key_code = (unsigned char)keysym;
976 }
977 // gdk_event->string is actually deprecated
978 else if ( gdk_event->length == 1 )
979 {
980 key_code = (unsigned char)gdk_event->string[0];
981 }
982 }
983
984 if ( key_code )
985 {
986 wxLogTrace(TRACE_KEYS, wxT("Char event: %ld"), key_code);
987
988 event.m_keyCode = key_code;
989
990 // To conform to the docs we need to translate Ctrl-alpha
991 // characters to values in the range 1-26.
992 if ( event.ControlDown() &&
993 ( wxIsLowerChar(key_code) || wxIsUpperChar(key_code) ))
994 {
995 if ( wxIsLowerChar(key_code) )
996 event.m_keyCode = key_code - 'a' + 1;
997 if ( wxIsUpperChar(key_code) )
998 event.m_keyCode = key_code - 'A' + 1;
999 #if wxUSE_UNICODE
1000 event.m_uniChar = event.m_keyCode;
1001 #endif
1002 }
1003
1004 ret = SendCharHookAndCharEvents(event, win);
1005 }
1006 }
1007
1008 return ret;
1009 }
1010 }
1011
1012 extern "C" {
1013 static void
1014 gtk_wxwindow_commit_cb (GtkIMContext * WXUNUSED(context),
1015 const gchar *str,
1016 wxWindow *window)
1017 {
1018 wxKeyEvent event( wxEVT_KEY_DOWN );
1019
1020 // take modifiers, cursor position, timestamp etc. from the last
1021 // key_press_event that was fed into Input Method:
1022 if (window->m_imData->lastKeyEvent)
1023 {
1024 wxFillOtherKeyEventFields(event,
1025 window, window->m_imData->lastKeyEvent);
1026 }
1027 else
1028 {
1029 event.SetEventObject( window );
1030 }
1031
1032 const wxString data(wxGTK_CONV_BACK_SYS(str));
1033 if( data.empty() )
1034 return;
1035
1036 for( wxString::const_iterator pstr = data.begin(); pstr != data.end(); ++pstr )
1037 {
1038 #if wxUSE_UNICODE
1039 event.m_uniChar = *pstr;
1040 // Backward compatible for ISO-8859-1
1041 event.m_keyCode = *pstr < 256 ? event.m_uniChar : 0;
1042 wxLogTrace(TRACE_KEYS, wxT("IM sent character '%c'"), event.m_uniChar);
1043 #else
1044 event.m_keyCode = (char)*pstr;
1045 #endif // wxUSE_UNICODE
1046
1047 // To conform to the docs we need to translate Ctrl-alpha
1048 // characters to values in the range 1-26.
1049 if ( event.ControlDown() &&
1050 ( wxIsLowerChar(*pstr) || wxIsUpperChar(*pstr) ))
1051 {
1052 if ( wxIsLowerChar(*pstr) )
1053 event.m_keyCode = *pstr - 'a' + 1;
1054 if ( wxIsUpperChar(*pstr) )
1055 event.m_keyCode = *pstr - 'A' + 1;
1056
1057 event.m_keyCode = *pstr - 'a' + 1;
1058 #if wxUSE_UNICODE
1059 event.m_uniChar = event.m_keyCode;
1060 #endif
1061 }
1062
1063 SendCharHookAndCharEvents(event, window);
1064 }
1065 }
1066 }
1067
1068
1069 //-----------------------------------------------------------------------------
1070 // "key_release_event" from any window
1071 //-----------------------------------------------------------------------------
1072
1073 extern "C" {
1074 static gboolean
1075 gtk_window_key_release_callback( GtkWidget * WXUNUSED(widget),
1076 GdkEventKey *gdk_event,
1077 wxWindowGTK *win )
1078 {
1079 if (!win->m_hasVMT)
1080 return FALSE;
1081
1082 if (g_blockEventsOnDrag)
1083 return FALSE;
1084
1085 wxKeyEvent event( wxEVT_KEY_UP );
1086 if ( !wxTranslateGTKKeyEventToWx(event, win, gdk_event) )
1087 {
1088 // unknown key pressed, ignore (the event would be useless anyhow)
1089 return FALSE;
1090 }
1091
1092 return win->GTKProcessEvent(event);
1093 }
1094 }
1095
1096 // ============================================================================
1097 // the mouse events
1098 // ============================================================================
1099
1100 // ----------------------------------------------------------------------------
1101 // mouse event processing helpers
1102 // ----------------------------------------------------------------------------
1103
1104 // init wxMouseEvent with the info from GdkEventXXX struct
1105 template<typename T> void InitMouseEvent(wxWindowGTK *win,
1106 wxMouseEvent& event,
1107 T *gdk_event)
1108 {
1109 event.m_shiftDown = (gdk_event->state & GDK_SHIFT_MASK) != 0;
1110 event.m_controlDown = (gdk_event->state & GDK_CONTROL_MASK) != 0;
1111 event.m_altDown = (gdk_event->state & GDK_MOD1_MASK) != 0;
1112 event.m_metaDown = (gdk_event->state & GDK_META_MASK) != 0;
1113 event.m_leftDown = (gdk_event->state & GDK_BUTTON1_MASK) != 0;
1114 event.m_middleDown = (gdk_event->state & GDK_BUTTON2_MASK) != 0;
1115 event.m_rightDown = (gdk_event->state & GDK_BUTTON3_MASK) != 0;
1116
1117 // In gdk/win32 VK_XBUTTON1 is translated to GDK_BUTTON4_MASK
1118 // and VK_XBUTTON2 to GDK_BUTTON5_MASK. In x11/gdk buttons 4/5
1119 // are wheel rotation and buttons 8/9 don't change the state.
1120 event.m_aux1Down = (gdk_event->state & GDK_BUTTON4_MASK) != 0;
1121 event.m_aux2Down = (gdk_event->state & GDK_BUTTON5_MASK) != 0;
1122
1123 wxPoint pt = win->GetClientAreaOrigin();
1124 event.m_x = (wxCoord)gdk_event->x - pt.x;
1125 event.m_y = (wxCoord)gdk_event->y - pt.y;
1126
1127 if ((win->m_wxwindow) && (win->GetLayoutDirection() == wxLayout_RightToLeft))
1128 {
1129 // origin in the upper right corner
1130 GtkAllocation a;
1131 gtk_widget_get_allocation(win->m_wxwindow, &a);
1132 int window_width = a.width;
1133 event.m_x = window_width - event.m_x;
1134 }
1135
1136 event.SetEventObject( win );
1137 event.SetId( win->GetId() );
1138 event.SetTimestamp( gdk_event->time );
1139 }
1140
1141 static void AdjustEventButtonState(wxMouseEvent& event)
1142 {
1143 // GDK reports the old state of the button for a button press event, but
1144 // for compatibility with MSW and common sense we want m_leftDown be TRUE
1145 // for a LEFT_DOWN event, not FALSE, so we will invert
1146 // left/right/middleDown for the corresponding click events
1147
1148 if ((event.GetEventType() == wxEVT_LEFT_DOWN) ||
1149 (event.GetEventType() == wxEVT_LEFT_DCLICK) ||
1150 (event.GetEventType() == wxEVT_LEFT_UP))
1151 {
1152 event.m_leftDown = !event.m_leftDown;
1153 return;
1154 }
1155
1156 if ((event.GetEventType() == wxEVT_MIDDLE_DOWN) ||
1157 (event.GetEventType() == wxEVT_MIDDLE_DCLICK) ||
1158 (event.GetEventType() == wxEVT_MIDDLE_UP))
1159 {
1160 event.m_middleDown = !event.m_middleDown;
1161 return;
1162 }
1163
1164 if ((event.GetEventType() == wxEVT_RIGHT_DOWN) ||
1165 (event.GetEventType() == wxEVT_RIGHT_DCLICK) ||
1166 (event.GetEventType() == wxEVT_RIGHT_UP))
1167 {
1168 event.m_rightDown = !event.m_rightDown;
1169 return;
1170 }
1171
1172 if ((event.GetEventType() == wxEVT_AUX1_DOWN) ||
1173 (event.GetEventType() == wxEVT_AUX1_DCLICK))
1174 {
1175 event.m_aux1Down = true;
1176 return;
1177 }
1178
1179 if ((event.GetEventType() == wxEVT_AUX2_DOWN) ||
1180 (event.GetEventType() == wxEVT_AUX2_DCLICK))
1181 {
1182 event.m_aux2Down = true;
1183 return;
1184 }
1185 }
1186
1187 // find the window to send the mouse event too
1188 static
1189 wxWindowGTK *FindWindowForMouseEvent(wxWindowGTK *win, wxCoord& x, wxCoord& y)
1190 {
1191 wxCoord xx = x;
1192 wxCoord yy = y;
1193
1194 if (win->m_wxwindow)
1195 {
1196 wxPizza* pizza = WX_PIZZA(win->m_wxwindow);
1197 xx += pizza->m_scroll_x;
1198 yy += pizza->m_scroll_y;
1199 }
1200
1201 wxWindowList::compatibility_iterator node = win->GetChildren().GetFirst();
1202 while (node)
1203 {
1204 wxWindowGTK *child = node->GetData();
1205
1206 node = node->GetNext();
1207 if (!child->IsShown())
1208 continue;
1209
1210 if (child->GTKIsTransparentForMouse())
1211 {
1212 // wxStaticBox is transparent in the box itself
1213 int xx1 = child->m_x;
1214 int yy1 = child->m_y;
1215 int xx2 = child->m_x + child->m_width;
1216 int yy2 = child->m_y + child->m_height;
1217
1218 // left
1219 if (((xx >= xx1) && (xx <= xx1+10) && (yy >= yy1) && (yy <= yy2)) ||
1220 // right
1221 ((xx >= xx2-10) && (xx <= xx2) && (yy >= yy1) && (yy <= yy2)) ||
1222 // top
1223 ((xx >= xx1) && (xx <= xx2) && (yy >= yy1) && (yy <= yy1+10)) ||
1224 // bottom
1225 ((xx >= xx1) && (xx <= xx2) && (yy >= yy2-1) && (yy <= yy2)))
1226 {
1227 win = child;
1228 x -= child->m_x;
1229 y -= child->m_y;
1230 break;
1231 }
1232
1233 }
1234 else
1235 {
1236 if ((child->m_wxwindow == NULL) &&
1237 (child->m_x <= xx) &&
1238 (child->m_y <= yy) &&
1239 (child->m_x+child->m_width >= xx) &&
1240 (child->m_y+child->m_height >= yy))
1241 {
1242 win = child;
1243 x -= child->m_x;
1244 y -= child->m_y;
1245 break;
1246 }
1247 }
1248 }
1249
1250 return win;
1251 }
1252
1253 // ----------------------------------------------------------------------------
1254 // common event handlers helpers
1255 // ----------------------------------------------------------------------------
1256
1257 bool wxWindowGTK::GTKProcessEvent(wxEvent& event) const
1258 {
1259 // nothing special at this level
1260 return HandleWindowEvent(event);
1261 }
1262
1263 bool wxWindowGTK::GTKShouldIgnoreEvent() const
1264 {
1265 return !m_hasVMT || g_blockEventsOnDrag;
1266 }
1267
1268 int wxWindowGTK::GTKCallbackCommonPrologue(GdkEventAny *event) const
1269 {
1270 if (!m_hasVMT)
1271 return FALSE;
1272 if (g_blockEventsOnDrag)
1273 return TRUE;
1274 if (g_blockEventsOnScroll)
1275 return TRUE;
1276
1277 if (!GTKIsOwnWindow(event->window))
1278 return FALSE;
1279
1280 return -1;
1281 }
1282
1283 // overloads for all GDK event types we use here: we need to have this as
1284 // GdkEventXXX can't be implicitly cast to GdkEventAny even if it, in fact,
1285 // derives from it in the sense that the structs have the same layout
1286 #define wxDEFINE_COMMON_PROLOGUE_OVERLOAD(T) \
1287 static int wxGtkCallbackCommonPrologue(T *event, wxWindowGTK *win) \
1288 { \
1289 return win->GTKCallbackCommonPrologue((GdkEventAny *)event); \
1290 }
1291
1292 wxDEFINE_COMMON_PROLOGUE_OVERLOAD(GdkEventButton)
1293 wxDEFINE_COMMON_PROLOGUE_OVERLOAD(GdkEventMotion)
1294 wxDEFINE_COMMON_PROLOGUE_OVERLOAD(GdkEventCrossing)
1295
1296 #undef wxDEFINE_COMMON_PROLOGUE_OVERLOAD
1297
1298 #define wxCOMMON_CALLBACK_PROLOGUE(event, win) \
1299 const int rc = wxGtkCallbackCommonPrologue(event, win); \
1300 if ( rc != -1 ) \
1301 return rc
1302
1303 // all event handlers must have C linkage as they're called from GTK+ C code
1304 extern "C"
1305 {
1306
1307 //-----------------------------------------------------------------------------
1308 // "button_press_event"
1309 //-----------------------------------------------------------------------------
1310
1311 static gboolean
1312 gtk_window_button_press_callback( GtkWidget *widget,
1313 GdkEventButton *gdk_event,
1314 wxWindowGTK *win )
1315 {
1316 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1317
1318 g_lastButtonNumber = gdk_event->button;
1319
1320 // GDK sends surplus button down events
1321 // before a double click event. We
1322 // need to filter these out.
1323 if ((gdk_event->type == GDK_BUTTON_PRESS) && (win->m_wxwindow))
1324 {
1325 GdkEvent *peek_event = gdk_event_peek();
1326 if (peek_event)
1327 {
1328 if ((peek_event->type == GDK_2BUTTON_PRESS) ||
1329 (peek_event->type == GDK_3BUTTON_PRESS))
1330 {
1331 gdk_event_free( peek_event );
1332 return TRUE;
1333 }
1334 else
1335 {
1336 gdk_event_free( peek_event );
1337 }
1338 }
1339 }
1340
1341 wxEventType event_type = wxEVT_NULL;
1342
1343 if ( gdk_event->type == GDK_2BUTTON_PRESS &&
1344 gdk_event->button >= 1 && gdk_event->button <= 3 )
1345 {
1346 // Reset GDK internal timestamp variables in order to disable GDK
1347 // triple click events. GDK will then next time believe no button has
1348 // been clicked just before, and send a normal button click event.
1349 GdkDisplay* display = gtk_widget_get_display (widget);
1350 display->button_click_time[1] = 0;
1351 display->button_click_time[0] = 0;
1352 }
1353
1354 if (gdk_event->button == 1)
1355 {
1356 // note that GDK generates triple click events which are not supported
1357 // by wxWidgets but still have to be passed to the app as otherwise
1358 // clicks would simply go missing
1359 switch (gdk_event->type)
1360 {
1361 // we shouldn't get triple clicks at all for GTK2 because we
1362 // suppress them artificially using the code above but we still
1363 // should map them to something for GTK1 and not just ignore them
1364 // as this would lose clicks
1365 case GDK_3BUTTON_PRESS: // we could also map this to DCLICK...
1366 case GDK_BUTTON_PRESS:
1367 event_type = wxEVT_LEFT_DOWN;
1368 break;
1369
1370 case GDK_2BUTTON_PRESS:
1371 event_type = wxEVT_LEFT_DCLICK;
1372 break;
1373
1374 default:
1375 // just to silence gcc warnings
1376 ;
1377 }
1378 }
1379 else if (gdk_event->button == 2)
1380 {
1381 switch (gdk_event->type)
1382 {
1383 case GDK_3BUTTON_PRESS:
1384 case GDK_BUTTON_PRESS:
1385 event_type = wxEVT_MIDDLE_DOWN;
1386 break;
1387
1388 case GDK_2BUTTON_PRESS:
1389 event_type = wxEVT_MIDDLE_DCLICK;
1390 break;
1391
1392 default:
1393 ;
1394 }
1395 }
1396 else if (gdk_event->button == 3)
1397 {
1398 switch (gdk_event->type)
1399 {
1400 case GDK_3BUTTON_PRESS:
1401 case GDK_BUTTON_PRESS:
1402 event_type = wxEVT_RIGHT_DOWN;
1403 break;
1404
1405 case GDK_2BUTTON_PRESS:
1406 event_type = wxEVT_RIGHT_DCLICK;
1407 break;
1408
1409 default:
1410 ;
1411 }
1412 }
1413
1414 else if (gdk_event->button == 8)
1415 {
1416 switch (gdk_event->type)
1417 {
1418 case GDK_3BUTTON_PRESS:
1419 case GDK_BUTTON_PRESS:
1420 event_type = wxEVT_AUX1_DOWN;
1421 break;
1422
1423 case GDK_2BUTTON_PRESS:
1424 event_type = wxEVT_AUX1_DCLICK;
1425 break;
1426
1427 default:
1428 ;
1429 }
1430 }
1431
1432 else if (gdk_event->button == 9)
1433 {
1434 switch (gdk_event->type)
1435 {
1436 case GDK_3BUTTON_PRESS:
1437 case GDK_BUTTON_PRESS:
1438 event_type = wxEVT_AUX2_DOWN;
1439 break;
1440
1441 case GDK_2BUTTON_PRESS:
1442 event_type = wxEVT_AUX2_DCLICK;
1443 break;
1444
1445 default:
1446 ;
1447 }
1448 }
1449
1450 if ( event_type == wxEVT_NULL )
1451 {
1452 // unknown mouse button or click type
1453 return FALSE;
1454 }
1455
1456 g_lastMouseEvent = (GdkEvent*) gdk_event;
1457
1458 wxMouseEvent event( event_type );
1459 InitMouseEvent( win, event, gdk_event );
1460
1461 AdjustEventButtonState(event);
1462
1463 // find the correct window to send the event to: it may be a different one
1464 // from the one which got it at GTK+ level because some controls don't have
1465 // their own X window and thus cannot get any events.
1466 if ( !g_captureWindow )
1467 win = FindWindowForMouseEvent(win, event.m_x, event.m_y);
1468
1469 // reset the event object and id in case win changed.
1470 event.SetEventObject( win );
1471 event.SetId( win->GetId() );
1472
1473 bool ret = win->GTKProcessEvent( event );
1474 g_lastMouseEvent = NULL;
1475 if ( ret )
1476 return TRUE;
1477
1478 if ((event_type == wxEVT_LEFT_DOWN) && !win->IsOfStandardClass() &&
1479 (gs_currentFocus != win) /* && win->IsFocusable() */)
1480 {
1481 win->SetFocus();
1482 }
1483
1484 if (event_type == wxEVT_RIGHT_DOWN)
1485 {
1486 // generate a "context menu" event: this is similar to right mouse
1487 // click under many GUIs except that it is generated differently
1488 // (right up under MSW, ctrl-click under Mac, right down here) and
1489 //
1490 // (a) it's a command event and so is propagated to the parent
1491 // (b) under some ports it can be generated from kbd too
1492 // (c) it uses screen coords (because of (a))
1493 wxContextMenuEvent evtCtx(
1494 wxEVT_CONTEXT_MENU,
1495 win->GetId(),
1496 win->ClientToScreen(event.GetPosition()));
1497 evtCtx.SetEventObject(win);
1498 return win->GTKProcessEvent(evtCtx);
1499 }
1500
1501 return FALSE;
1502 }
1503
1504 //-----------------------------------------------------------------------------
1505 // "button_release_event"
1506 //-----------------------------------------------------------------------------
1507
1508 static gboolean
1509 gtk_window_button_release_callback( GtkWidget *WXUNUSED(widget),
1510 GdkEventButton *gdk_event,
1511 wxWindowGTK *win )
1512 {
1513 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1514
1515 g_lastButtonNumber = 0;
1516
1517 wxEventType event_type = wxEVT_NULL;
1518
1519 switch (gdk_event->button)
1520 {
1521 case 1:
1522 event_type = wxEVT_LEFT_UP;
1523 break;
1524
1525 case 2:
1526 event_type = wxEVT_MIDDLE_UP;
1527 break;
1528
1529 case 3:
1530 event_type = wxEVT_RIGHT_UP;
1531 break;
1532
1533 case 8:
1534 event_type = wxEVT_AUX1_UP;
1535 break;
1536
1537 case 9:
1538 event_type = wxEVT_AUX2_UP;
1539 break;
1540
1541 default:
1542 // unknown button, don't process
1543 return FALSE;
1544 }
1545
1546 g_lastMouseEvent = (GdkEvent*) gdk_event;
1547
1548 wxMouseEvent event( event_type );
1549 InitMouseEvent( win, event, gdk_event );
1550
1551 AdjustEventButtonState(event);
1552
1553 if ( !g_captureWindow )
1554 win = FindWindowForMouseEvent(win, event.m_x, event.m_y);
1555
1556 // reset the event object and id in case win changed.
1557 event.SetEventObject( win );
1558 event.SetId( win->GetId() );
1559
1560 bool ret = win->GTKProcessEvent(event);
1561
1562 g_lastMouseEvent = NULL;
1563
1564 return ret;
1565 }
1566
1567 //-----------------------------------------------------------------------------
1568 // "motion_notify_event"
1569 //-----------------------------------------------------------------------------
1570
1571 static gboolean
1572 gtk_window_motion_notify_callback( GtkWidget * WXUNUSED(widget),
1573 GdkEventMotion *gdk_event,
1574 wxWindowGTK *win )
1575 {
1576 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1577
1578 if (gdk_event->is_hint)
1579 {
1580 int x = 0;
1581 int y = 0;
1582 GdkModifierType state;
1583 gdk_window_get_pointer(gdk_event->window, &x, &y, &state);
1584 gdk_event->x = x;
1585 gdk_event->y = y;
1586 }
1587
1588 g_lastMouseEvent = (GdkEvent*) gdk_event;
1589
1590 wxMouseEvent event( wxEVT_MOTION );
1591 InitMouseEvent(win, event, gdk_event);
1592
1593 if ( g_captureWindow )
1594 {
1595 // synthesise a mouse enter or leave event if needed
1596 GdkWindow *winUnderMouse = gdk_window_at_pointer(NULL, NULL);
1597 // This seems to be necessary and actually been added to
1598 // GDK itself in version 2.0.X
1599 gdk_flush();
1600
1601 bool hasMouse = winUnderMouse == gdk_event->window;
1602 if ( hasMouse != g_captureWindowHasMouse )
1603 {
1604 // the mouse changed window
1605 g_captureWindowHasMouse = hasMouse;
1606
1607 wxMouseEvent eventM(g_captureWindowHasMouse ? wxEVT_ENTER_WINDOW
1608 : wxEVT_LEAVE_WINDOW);
1609 InitMouseEvent(win, eventM, gdk_event);
1610 eventM.SetEventObject(win);
1611 win->GTKProcessEvent(eventM);
1612 }
1613 }
1614 else // no capture
1615 {
1616 win = FindWindowForMouseEvent(win, event.m_x, event.m_y);
1617
1618 // reset the event object and id in case win changed.
1619 event.SetEventObject( win );
1620 event.SetId( win->GetId() );
1621 }
1622
1623 if ( !g_captureWindow )
1624 {
1625 wxSetCursorEvent cevent( event.m_x, event.m_y );
1626 if (win->GTKProcessEvent( cevent ))
1627 {
1628 win->SetCursor( cevent.GetCursor() );
1629 }
1630 }
1631
1632 bool ret = win->GTKProcessEvent(event);
1633
1634 g_lastMouseEvent = NULL;
1635
1636 return ret;
1637 }
1638
1639 //-----------------------------------------------------------------------------
1640 // "scroll_event" (mouse wheel event)
1641 //-----------------------------------------------------------------------------
1642
1643 static gboolean
1644 window_scroll_event_hscrollbar(GtkWidget*, GdkEventScroll* gdk_event, wxWindow* win)
1645 {
1646 if (gdk_event->direction != GDK_SCROLL_LEFT &&
1647 gdk_event->direction != GDK_SCROLL_RIGHT)
1648 {
1649 return false;
1650 }
1651
1652 GtkRange *range = win->m_scrollBar[wxWindow::ScrollDir_Horz];
1653
1654 if (range && gtk_widget_get_visible(GTK_WIDGET(range)))
1655 {
1656 GtkAdjustment* adj = gtk_range_get_adjustment(range);
1657 double delta = gtk_adjustment_get_step_increment(adj) * 3;
1658 if (gdk_event->direction == GDK_SCROLL_LEFT)
1659 delta = -delta;
1660
1661 gtk_range_set_value(range, gtk_adjustment_get_value(adj) + delta);
1662
1663 return TRUE;
1664 }
1665
1666 return FALSE;
1667 }
1668
1669 static gboolean
1670 window_scroll_event(GtkWidget*, GdkEventScroll* gdk_event, wxWindow* win)
1671 {
1672 if (gdk_event->direction != GDK_SCROLL_UP &&
1673 gdk_event->direction != GDK_SCROLL_DOWN)
1674 {
1675 return false;
1676 }
1677
1678 wxMouseEvent event(wxEVT_MOUSEWHEEL);
1679 InitMouseEvent(win, event, gdk_event);
1680
1681 // FIXME: Get these values from GTK or GDK
1682 event.m_linesPerAction = 3;
1683 event.m_wheelDelta = 120;
1684 if (gdk_event->direction == GDK_SCROLL_UP)
1685 event.m_wheelRotation = 120;
1686 else
1687 event.m_wheelRotation = -120;
1688
1689 if (win->GTKProcessEvent(event))
1690 return TRUE;
1691
1692 GtkRange *range = win->m_scrollBar[wxWindow::ScrollDir_Vert];
1693
1694 if (range && gtk_widget_get_visible(GTK_WIDGET(range)))
1695 {
1696 GtkAdjustment* adj = gtk_range_get_adjustment(range);
1697 double delta = gtk_adjustment_get_step_increment(adj) * 3;
1698 if (gdk_event->direction == GDK_SCROLL_UP)
1699 delta = -delta;
1700
1701 gtk_range_set_value(range, gtk_adjustment_get_value(adj) + delta);
1702
1703 return TRUE;
1704 }
1705
1706 return FALSE;
1707 }
1708
1709 //-----------------------------------------------------------------------------
1710 // "popup-menu"
1711 //-----------------------------------------------------------------------------
1712
1713 static gboolean wxgtk_window_popup_menu_callback(GtkWidget*, wxWindowGTK* win)
1714 {
1715 wxContextMenuEvent event(wxEVT_CONTEXT_MENU, win->GetId(), wxPoint(-1, -1));
1716 event.SetEventObject(win);
1717 return win->GTKProcessEvent(event);
1718 }
1719
1720 //-----------------------------------------------------------------------------
1721 // "focus_in_event"
1722 //-----------------------------------------------------------------------------
1723
1724 static gboolean
1725 gtk_window_focus_in_callback( GtkWidget * WXUNUSED(widget),
1726 GdkEventFocus *WXUNUSED(event),
1727 wxWindowGTK *win )
1728 {
1729 return win->GTKHandleFocusIn();
1730 }
1731
1732 //-----------------------------------------------------------------------------
1733 // "focus_out_event"
1734 //-----------------------------------------------------------------------------
1735
1736 static gboolean
1737 gtk_window_focus_out_callback( GtkWidget * WXUNUSED(widget),
1738 GdkEventFocus * WXUNUSED(gdk_event),
1739 wxWindowGTK *win )
1740 {
1741 return win->GTKHandleFocusOut();
1742 }
1743
1744 //-----------------------------------------------------------------------------
1745 // "focus"
1746 //-----------------------------------------------------------------------------
1747
1748 static gboolean
1749 wx_window_focus_callback(GtkWidget *widget,
1750 GtkDirectionType WXUNUSED(direction),
1751 wxWindowGTK *win)
1752 {
1753 // the default handler for focus signal in GtkScrolledWindow sets
1754 // focus to the window itself even if it doesn't accept focus, i.e. has no
1755 // GTK_CAN_FOCUS in its style -- work around this by forcibly preventing
1756 // the signal from reaching gtk_scrolled_window_focus() if we don't have
1757 // any children which might accept focus (we know we don't accept the focus
1758 // ourselves as this signal is only connected in this case)
1759 if ( win->GetChildren().empty() )
1760 g_signal_stop_emission_by_name(widget, "focus");
1761
1762 // we didn't change the focus
1763 return FALSE;
1764 }
1765
1766 //-----------------------------------------------------------------------------
1767 // "enter_notify_event"
1768 //-----------------------------------------------------------------------------
1769
1770 static gboolean
1771 gtk_window_enter_callback( GtkWidget *widget,
1772 GdkEventCrossing *gdk_event,
1773 wxWindowGTK *win )
1774 {
1775 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1776
1777 // Event was emitted after a grab
1778 if (gdk_event->mode != GDK_CROSSING_NORMAL) return FALSE;
1779
1780 int x = 0;
1781 int y = 0;
1782 GdkModifierType state = (GdkModifierType)0;
1783
1784 gdk_window_get_pointer(gtk_widget_get_window(widget), &x, &y, &state);
1785
1786 wxMouseEvent event( wxEVT_ENTER_WINDOW );
1787 InitMouseEvent(win, event, gdk_event);
1788 wxPoint pt = win->GetClientAreaOrigin();
1789 event.m_x = x + pt.x;
1790 event.m_y = y + pt.y;
1791
1792 if ( !g_captureWindow )
1793 {
1794 wxSetCursorEvent cevent( event.m_x, event.m_y );
1795 if (win->GTKProcessEvent( cevent ))
1796 {
1797 win->SetCursor( cevent.GetCursor() );
1798 }
1799 }
1800
1801 return win->GTKProcessEvent(event);
1802 }
1803
1804 //-----------------------------------------------------------------------------
1805 // "leave_notify_event"
1806 //-----------------------------------------------------------------------------
1807
1808 static gboolean
1809 gtk_window_leave_callback( GtkWidget *widget,
1810 GdkEventCrossing *gdk_event,
1811 wxWindowGTK *win )
1812 {
1813 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1814
1815 // Event was emitted after an ungrab
1816 if (gdk_event->mode != GDK_CROSSING_NORMAL) return FALSE;
1817
1818 wxMouseEvent event( wxEVT_LEAVE_WINDOW );
1819
1820 int x = 0;
1821 int y = 0;
1822 GdkModifierType state = (GdkModifierType)0;
1823
1824 gdk_window_get_pointer(gtk_widget_get_window(widget), &x, &y, &state);
1825
1826 InitMouseEvent(win, event, gdk_event);
1827
1828 return win->GTKProcessEvent(event);
1829 }
1830
1831 //-----------------------------------------------------------------------------
1832 // "value_changed" from scrollbar
1833 //-----------------------------------------------------------------------------
1834
1835 static void
1836 gtk_scrollbar_value_changed(GtkRange* range, wxWindow* win)
1837 {
1838 wxEventType eventType = win->GTKGetScrollEventType(range);
1839 if (eventType != wxEVT_NULL)
1840 {
1841 // Convert scroll event type to scrollwin event type
1842 eventType += wxEVT_SCROLLWIN_TOP - wxEVT_SCROLL_TOP;
1843
1844 // find the scrollbar which generated the event
1845 wxWindowGTK::ScrollDir dir = win->ScrollDirFromRange(range);
1846
1847 // generate the corresponding wx event
1848 const int orient = wxWindow::OrientFromScrollDir(dir);
1849 wxScrollWinEvent event(eventType, win->GetScrollPos(orient), orient);
1850 event.SetEventObject(win);
1851
1852 win->GTKProcessEvent(event);
1853 }
1854 }
1855
1856 //-----------------------------------------------------------------------------
1857 // "button_press_event" from scrollbar
1858 //-----------------------------------------------------------------------------
1859
1860 static gboolean
1861 gtk_scrollbar_button_press_event(GtkRange*, GdkEventButton*, wxWindow* win)
1862 {
1863 g_blockEventsOnScroll = true;
1864 win->m_mouseButtonDown = true;
1865
1866 return false;
1867 }
1868
1869 //-----------------------------------------------------------------------------
1870 // "event_after" from scrollbar
1871 //-----------------------------------------------------------------------------
1872
1873 static void
1874 gtk_scrollbar_event_after(GtkRange* range, GdkEvent* event, wxWindow* win)
1875 {
1876 if (event->type == GDK_BUTTON_RELEASE)
1877 {
1878 g_signal_handlers_block_by_func(range, (void*)gtk_scrollbar_event_after, win);
1879
1880 const int orient = wxWindow::OrientFromScrollDir(
1881 win->ScrollDirFromRange(range));
1882 wxScrollWinEvent evt(wxEVT_SCROLLWIN_THUMBRELEASE,
1883 win->GetScrollPos(orient), orient);
1884 evt.SetEventObject(win);
1885 win->GTKProcessEvent(evt);
1886 }
1887 }
1888
1889 //-----------------------------------------------------------------------------
1890 // "button_release_event" from scrollbar
1891 //-----------------------------------------------------------------------------
1892
1893 static gboolean
1894 gtk_scrollbar_button_release_event(GtkRange* range, GdkEventButton*, wxWindow* win)
1895 {
1896 g_blockEventsOnScroll = false;
1897 win->m_mouseButtonDown = false;
1898 // If thumb tracking
1899 if (win->m_isScrolling)
1900 {
1901 win->m_isScrolling = false;
1902 // Hook up handler to send thumb release event after this emission is finished.
1903 // To allow setting scroll position from event handler, sending event must
1904 // be deferred until after the GtkRange handler for this signal has run
1905 g_signal_handlers_unblock_by_func(range, (void*)gtk_scrollbar_event_after, win);
1906 }
1907
1908 return false;
1909 }
1910
1911 //-----------------------------------------------------------------------------
1912 // "realize" from m_widget
1913 //-----------------------------------------------------------------------------
1914
1915 static void
1916 gtk_window_realized_callback(GtkWidget* WXUNUSED(widget), wxWindow* win)
1917 {
1918 win->GTKHandleRealized();
1919 }
1920
1921 void wxWindowGTK::GTKHandleRealized()
1922 {
1923 if (m_imData)
1924 {
1925 gtk_im_context_set_client_window
1926 (
1927 m_imData->context,
1928 m_wxwindow ? GTKGetDrawingWindow()
1929 : gtk_widget_get_window(m_widget)
1930 );
1931 }
1932
1933 // We cannot set colours and fonts before the widget
1934 // been realized, so we do this directly after realization
1935 // or otherwise in idle time
1936
1937 if (m_needsStyleChange)
1938 {
1939 SetBackgroundStyle(GetBackgroundStyle());
1940 m_needsStyleChange = false;
1941 }
1942
1943 wxWindowCreateEvent event( this );
1944 event.SetEventObject( this );
1945 GTKProcessEvent( event );
1946
1947 GTKUpdateCursor(true, false);
1948 }
1949
1950 //-----------------------------------------------------------------------------
1951 // "size_allocate" from m_wxwindow or m_widget
1952 //-----------------------------------------------------------------------------
1953
1954 static void
1955 size_allocate(GtkWidget*, GtkAllocation* alloc, wxWindow* win)
1956 {
1957 int w = alloc->width;
1958 int h = alloc->height;
1959 if (win->m_wxwindow)
1960 {
1961 int border_x, border_y;
1962 WX_PIZZA(win->m_wxwindow)->get_border_widths(border_x, border_y);
1963 w -= 2 * border_x;
1964 h -= 2 * border_y;
1965 if (w < 0) w = 0;
1966 if (h < 0) h = 0;
1967 }
1968 if (win->m_oldClientWidth != w || win->m_oldClientHeight != h)
1969 {
1970 win->m_oldClientWidth = w;
1971 win->m_oldClientHeight = h;
1972 // this callback can be connected to m_wxwindow,
1973 // so always get size from m_widget->allocation
1974 GtkAllocation a;
1975 gtk_widget_get_allocation(win->m_widget, &a);
1976 win->m_width = a.width;
1977 win->m_height = a.height;
1978 if (!win->m_nativeSizeEvent)
1979 {
1980 wxSizeEvent event(win->GetSize(), win->GetId());
1981 event.SetEventObject(win);
1982 win->GTKProcessEvent(event);
1983 }
1984 }
1985 }
1986
1987 //-----------------------------------------------------------------------------
1988 // "grab_broken"
1989 //-----------------------------------------------------------------------------
1990
1991 #if GTK_CHECK_VERSION(2, 8, 0)
1992 static gboolean
1993 gtk_window_grab_broken( GtkWidget*,
1994 GdkEventGrabBroken *event,
1995 wxWindow *win )
1996 {
1997 // Mouse capture has been lost involuntarily, notify the application
1998 if(!event->keyboard && wxWindow::GetCapture() == win)
1999 {
2000 wxMouseCaptureLostEvent evt( win->GetId() );
2001 evt.SetEventObject( win );
2002 win->HandleWindowEvent( evt );
2003 }
2004 return false;
2005 }
2006 #endif
2007
2008 //-----------------------------------------------------------------------------
2009 // "style_set"
2010 //-----------------------------------------------------------------------------
2011
2012 static
2013 void gtk_window_style_set_callback( GtkWidget *WXUNUSED(widget),
2014 GtkStyle *previous_style,
2015 wxWindow* win )
2016 {
2017 if (win && previous_style)
2018 {
2019 wxSysColourChangedEvent event;
2020 event.SetEventObject(win);
2021
2022 win->GTKProcessEvent( event );
2023 }
2024 }
2025
2026 } // extern "C"
2027
2028 // ----------------------------------------------------------------------------
2029 // this wxWindowBase function is implemented here (in platform-specific file)
2030 // because it is static and so couldn't be made virtual
2031 // ----------------------------------------------------------------------------
2032
2033 wxWindow *wxWindowBase::DoFindFocus()
2034 {
2035 wxWindowGTK *focus = gs_pendingFocus ? gs_pendingFocus : gs_currentFocus;
2036 // the cast is necessary when we compile in wxUniversal mode
2037 return static_cast<wxWindow*>(focus);
2038 }
2039
2040 void wxWindowGTK::AddChildGTK(wxWindowGTK* child)
2041 {
2042 wxASSERT_MSG(m_wxwindow, "Cannot add a child to a window without a client area");
2043
2044 // the window might have been scrolled already, we
2045 // have to adapt the position
2046 wxPizza* pizza = WX_PIZZA(m_wxwindow);
2047 child->m_x += pizza->m_scroll_x;
2048 child->m_y += pizza->m_scroll_y;
2049
2050 gtk_widget_set_size_request(
2051 child->m_widget, child->m_width, child->m_height);
2052 pizza->put(child->m_widget, child->m_x, child->m_y);
2053 }
2054
2055 //-----------------------------------------------------------------------------
2056 // global functions
2057 //-----------------------------------------------------------------------------
2058
2059 wxWindow *wxGetActiveWindow()
2060 {
2061 return wxWindow::FindFocus();
2062 }
2063
2064
2065 wxMouseState wxGetMouseState()
2066 {
2067 wxMouseState ms;
2068
2069 gint x;
2070 gint y;
2071 GdkModifierType mask;
2072
2073 gdk_window_get_pointer(NULL, &x, &y, &mask);
2074
2075 ms.SetX(x);
2076 ms.SetY(y);
2077 ms.SetLeftDown((mask & GDK_BUTTON1_MASK) != 0);
2078 ms.SetMiddleDown((mask & GDK_BUTTON2_MASK) != 0);
2079 ms.SetRightDown((mask & GDK_BUTTON3_MASK) != 0);
2080 // see the comment in InitMouseEvent()
2081 ms.SetAux1Down((mask & GDK_BUTTON4_MASK) != 0);
2082 ms.SetAux2Down((mask & GDK_BUTTON5_MASK) != 0);
2083
2084 ms.SetControlDown((mask & GDK_CONTROL_MASK) != 0);
2085 ms.SetShiftDown((mask & GDK_SHIFT_MASK) != 0);
2086 ms.SetAltDown((mask & GDK_MOD1_MASK) != 0);
2087 ms.SetMetaDown((mask & GDK_META_MASK) != 0);
2088
2089 return ms;
2090 }
2091
2092 //-----------------------------------------------------------------------------
2093 // wxWindowGTK
2094 //-----------------------------------------------------------------------------
2095
2096 // in wxUniv/MSW this class is abstract because it doesn't have DoPopupMenu()
2097 // method
2098 #ifdef __WXUNIVERSAL__
2099 IMPLEMENT_ABSTRACT_CLASS(wxWindowGTK, wxWindowBase)
2100 #endif // __WXUNIVERSAL__
2101
2102 void wxWindowGTK::Init()
2103 {
2104 // GTK specific
2105 m_widget = NULL;
2106 m_wxwindow = NULL;
2107 m_focusWidget = NULL;
2108
2109 // position/size
2110 m_x = 0;
2111 m_y = 0;
2112 m_width = 0;
2113 m_height = 0;
2114
2115 m_hasVMT = false;
2116
2117 m_showOnIdle = false;
2118
2119 m_noExpose = false;
2120 m_nativeSizeEvent = false;
2121
2122 m_isScrolling = false;
2123 m_mouseButtonDown = false;
2124
2125 // initialize scrolling stuff
2126 for ( int dir = 0; dir < ScrollDir_Max; dir++ )
2127 {
2128 m_scrollBar[dir] = NULL;
2129 m_scrollPos[dir] = 0;
2130 }
2131
2132 m_oldClientWidth =
2133 m_oldClientHeight = 0;
2134
2135 m_clipPaintRegion = false;
2136
2137 m_needsStyleChange = false;
2138
2139 m_cursor = *wxSTANDARD_CURSOR;
2140
2141 m_imData = NULL;
2142 m_dirtyTabOrder = false;
2143 }
2144
2145 wxWindowGTK::wxWindowGTK()
2146 {
2147 Init();
2148 }
2149
2150 wxWindowGTK::wxWindowGTK( wxWindow *parent,
2151 wxWindowID id,
2152 const wxPoint &pos,
2153 const wxSize &size,
2154 long style,
2155 const wxString &name )
2156 {
2157 Init();
2158
2159 Create( parent, id, pos, size, style, name );
2160 }
2161
2162 bool wxWindowGTK::Create( wxWindow *parent,
2163 wxWindowID id,
2164 const wxPoint &pos,
2165 const wxSize &size,
2166 long style,
2167 const wxString &name )
2168 {
2169 // Get default border
2170 wxBorder border = GetBorder(style);
2171
2172 style &= ~wxBORDER_MASK;
2173 style |= border;
2174
2175 if (!PreCreation( parent, pos, size ) ||
2176 !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
2177 {
2178 wxFAIL_MSG( wxT("wxWindowGTK creation failed") );
2179 return false;
2180 }
2181
2182 // We should accept the native look
2183 #if 0
2184 GtkScrolledWindowClass *scroll_class = GTK_SCROLLED_WINDOW_CLASS( GTK_OBJECT_GET_CLASS(m_widget) );
2185 scroll_class->scrollbar_spacing = 0;
2186 #endif
2187
2188
2189 m_wxwindow = wxPizza::New(m_windowStyle);
2190 #ifndef __WXUNIVERSAL__
2191 if (HasFlag(wxPizza::BORDER_STYLES))
2192 {
2193 g_signal_connect(m_wxwindow, "parent_set",
2194 G_CALLBACK(parent_set), this);
2195 }
2196 #endif
2197 if (!HasFlag(wxHSCROLL) && !HasFlag(wxVSCROLL))
2198 m_widget = m_wxwindow;
2199 else
2200 {
2201 m_widget = gtk_scrolled_window_new( NULL, NULL );
2202
2203 GtkScrolledWindow *scrolledWindow = GTK_SCROLLED_WINDOW(m_widget);
2204
2205 // There is a conflict with default bindings at GTK+
2206 // level between scrolled windows and notebooks both of which want to use
2207 // Ctrl-PageUp/Down: scrolled windows for scrolling in the horizontal
2208 // direction and notebooks for changing pages -- we decide that if we don't
2209 // have wxHSCROLL style we can safely sacrifice horizontal scrolling if it
2210 // means we can get working keyboard navigation in notebooks
2211 if ( !HasFlag(wxHSCROLL) )
2212 {
2213 GtkBindingSet *
2214 bindings = gtk_binding_set_by_class(G_OBJECT_GET_CLASS(m_widget));
2215 if ( bindings )
2216 {
2217 gtk_binding_entry_remove(bindings, GDK_Page_Up, GDK_CONTROL_MASK);
2218 gtk_binding_entry_remove(bindings, GDK_Page_Down, GDK_CONTROL_MASK);
2219 }
2220 }
2221
2222 if (HasFlag(wxALWAYS_SHOW_SB))
2223 {
2224 gtk_scrolled_window_set_policy( scrolledWindow, GTK_POLICY_ALWAYS, GTK_POLICY_ALWAYS );
2225 }
2226 else
2227 {
2228 gtk_scrolled_window_set_policy( scrolledWindow, GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
2229 }
2230
2231 m_scrollBar[ScrollDir_Horz] = GTK_RANGE(gtk_scrolled_window_get_hscrollbar(scrolledWindow));
2232 m_scrollBar[ScrollDir_Vert] = GTK_RANGE(gtk_scrolled_window_get_vscrollbar(scrolledWindow));
2233 if (GetLayoutDirection() == wxLayout_RightToLeft)
2234 gtk_range_set_inverted( m_scrollBar[ScrollDir_Horz], TRUE );
2235
2236 gtk_container_add( GTK_CONTAINER(m_widget), m_wxwindow );
2237
2238 // connect various scroll-related events
2239 for ( int dir = 0; dir < ScrollDir_Max; dir++ )
2240 {
2241 // these handlers block mouse events to any window during scrolling
2242 // such as motion events and prevent GTK and wxWidgets from fighting
2243 // over where the slider should be
2244 g_signal_connect(m_scrollBar[dir], "button_press_event",
2245 G_CALLBACK(gtk_scrollbar_button_press_event), this);
2246 g_signal_connect(m_scrollBar[dir], "button_release_event",
2247 G_CALLBACK(gtk_scrollbar_button_release_event), this);
2248
2249 gulong handler_id = g_signal_connect(m_scrollBar[dir], "event_after",
2250 G_CALLBACK(gtk_scrollbar_event_after), this);
2251 g_signal_handler_block(m_scrollBar[dir], handler_id);
2252
2253 // these handlers get notified when scrollbar slider moves
2254 g_signal_connect_after(m_scrollBar[dir], "value_changed",
2255 G_CALLBACK(gtk_scrollbar_value_changed), this);
2256 }
2257
2258 gtk_widget_show( m_wxwindow );
2259 }
2260 g_object_ref(m_widget);
2261
2262 if (m_parent)
2263 m_parent->DoAddChild( this );
2264
2265 m_focusWidget = m_wxwindow;
2266
2267 SetCanFocus(AcceptsFocus());
2268
2269 PostCreation();
2270
2271 return true;
2272 }
2273
2274 wxWindowGTK::~wxWindowGTK()
2275 {
2276 SendDestroyEvent();
2277
2278 if (gs_currentFocus == this)
2279 gs_currentFocus = NULL;
2280 if (gs_pendingFocus == this)
2281 gs_pendingFocus = NULL;
2282
2283 if ( gs_deferredFocusOut == this )
2284 gs_deferredFocusOut = NULL;
2285
2286 m_hasVMT = false;
2287
2288 // destroy children before destroying this window itself
2289 DestroyChildren();
2290
2291 // unhook focus handlers to prevent stray events being
2292 // propagated to this (soon to be) dead object
2293 if (m_focusWidget != NULL)
2294 {
2295 g_signal_handlers_disconnect_by_func (m_focusWidget,
2296 (gpointer) gtk_window_focus_in_callback,
2297 this);
2298 g_signal_handlers_disconnect_by_func (m_focusWidget,
2299 (gpointer) gtk_window_focus_out_callback,
2300 this);
2301 }
2302
2303 if (m_widget)
2304 Show( false );
2305
2306 // delete before the widgets to avoid a crash on solaris
2307 delete m_imData;
2308
2309 // avoid problem with GTK+ 2.18 where a frozen window causes the whole
2310 // TLW to be frozen, and if the window is then destroyed, nothing ever
2311 // gets painted again
2312 if (IsFrozen())
2313 DoThaw();
2314
2315 if (m_widget)
2316 {
2317 // Note that gtk_widget_destroy() does not destroy the widget, it just
2318 // emits the "destroy" signal. The widget is not actually destroyed
2319 // until its reference count drops to zero.
2320 gtk_widget_destroy(m_widget);
2321 // Release our reference, should be the last one
2322 g_object_unref(m_widget);
2323 m_widget = NULL;
2324 }
2325 m_wxwindow = NULL;
2326 }
2327
2328 bool wxWindowGTK::PreCreation( wxWindowGTK *parent, const wxPoint &pos, const wxSize &size )
2329 {
2330 if ( GTKNeedsParent() )
2331 {
2332 wxCHECK_MSG( parent, false, wxT("Must have non-NULL parent") );
2333 }
2334
2335 // Use either the given size, or the default if -1 is given.
2336 // See wxWindowBase for these functions.
2337 m_width = WidthDefault(size.x) ;
2338 m_height = HeightDefault(size.y);
2339
2340 m_x = (int)pos.x;
2341 m_y = (int)pos.y;
2342
2343 return true;
2344 }
2345
2346 void wxWindowGTK::PostCreation()
2347 {
2348 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
2349
2350 if (m_wxwindow)
2351 {
2352 if (!m_noExpose)
2353 {
2354 // these get reported to wxWidgets -> wxPaintEvent
2355
2356 g_signal_connect (m_wxwindow, "expose_event",
2357 G_CALLBACK (gtk_window_expose_callback), this);
2358
2359 if (GetLayoutDirection() == wxLayout_LeftToRight)
2360 gtk_widget_set_redraw_on_allocate(m_wxwindow, HasFlag(wxFULL_REPAINT_ON_RESIZE));
2361 }
2362
2363 // Create input method handler
2364 m_imData = new wxGtkIMData;
2365
2366 // Cannot handle drawing preedited text yet
2367 gtk_im_context_set_use_preedit( m_imData->context, FALSE );
2368
2369 g_signal_connect (m_imData->context, "commit",
2370 G_CALLBACK (gtk_wxwindow_commit_cb), this);
2371 }
2372
2373 // focus handling
2374
2375 if (!GTK_IS_WINDOW(m_widget))
2376 {
2377 if (m_focusWidget == NULL)
2378 m_focusWidget = m_widget;
2379
2380 if (m_wxwindow)
2381 {
2382 g_signal_connect (m_focusWidget, "focus_in_event",
2383 G_CALLBACK (gtk_window_focus_in_callback), this);
2384 g_signal_connect (m_focusWidget, "focus_out_event",
2385 G_CALLBACK (gtk_window_focus_out_callback), this);
2386 }
2387 else
2388 {
2389 g_signal_connect_after (m_focusWidget, "focus_in_event",
2390 G_CALLBACK (gtk_window_focus_in_callback), this);
2391 g_signal_connect_after (m_focusWidget, "focus_out_event",
2392 G_CALLBACK (gtk_window_focus_out_callback), this);
2393 }
2394 }
2395
2396 if ( !AcceptsFocusFromKeyboard() )
2397 {
2398 SetCanFocus(false);
2399
2400 g_signal_connect(m_widget, "focus",
2401 G_CALLBACK(wx_window_focus_callback), this);
2402 }
2403
2404 // connect to the various key and mouse handlers
2405
2406 GtkWidget *connect_widget = GetConnectWidget();
2407
2408 ConnectWidget( connect_widget );
2409
2410 /* We cannot set colours, fonts and cursors before the widget has
2411 been realized, so we do this directly after realization */
2412 g_signal_connect (connect_widget, "realize",
2413 G_CALLBACK (gtk_window_realized_callback), this);
2414
2415 if (!IsTopLevel())
2416 {
2417 g_signal_connect(m_wxwindow ? m_wxwindow : m_widget, "size_allocate",
2418 G_CALLBACK(size_allocate), this);
2419 }
2420
2421 #if GTK_CHECK_VERSION(2, 8, 0)
2422 if ( gtk_check_version(2,8,0) == NULL )
2423 {
2424 // Make sure we can notify the app when mouse capture is lost
2425 if ( m_wxwindow )
2426 {
2427 g_signal_connect (m_wxwindow, "grab_broken_event",
2428 G_CALLBACK (gtk_window_grab_broken), this);
2429 }
2430
2431 if ( connect_widget != m_wxwindow )
2432 {
2433 g_signal_connect (connect_widget, "grab_broken_event",
2434 G_CALLBACK (gtk_window_grab_broken), this);
2435 }
2436 }
2437 #endif // GTK+ >= 2.8
2438
2439 if ( GTKShouldConnectSizeRequest() )
2440 {
2441 // This is needed if we want to add our windows into native
2442 // GTK controls, such as the toolbar. With this callback, the
2443 // toolbar gets to know the correct size (the one set by the
2444 // programmer). Sadly, it misbehaves for wxComboBox.
2445 g_signal_connect (m_widget, "size_request",
2446 G_CALLBACK (wxgtk_window_size_request_callback),
2447 this);
2448 }
2449
2450 InheritAttributes();
2451
2452 m_hasVMT = true;
2453
2454 SetLayoutDirection(wxLayout_Default);
2455
2456 // unless the window was created initially hidden (i.e. Hide() had been
2457 // called before Create()), we should show it at GTK+ level as well
2458 if ( IsShown() )
2459 gtk_widget_show( m_widget );
2460 }
2461
2462 unsigned long wxWindowGTK::GTKConnectWidget(const char *signal, void (*callback)())
2463 {
2464 return g_signal_connect(m_widget, signal, callback, this);
2465 }
2466
2467 void wxWindowGTK::ConnectWidget( GtkWidget *widget )
2468 {
2469 g_signal_connect (widget, "key_press_event",
2470 G_CALLBACK (gtk_window_key_press_callback), this);
2471 g_signal_connect (widget, "key_release_event",
2472 G_CALLBACK (gtk_window_key_release_callback), this);
2473 g_signal_connect (widget, "button_press_event",
2474 G_CALLBACK (gtk_window_button_press_callback), this);
2475 g_signal_connect (widget, "button_release_event",
2476 G_CALLBACK (gtk_window_button_release_callback), this);
2477 g_signal_connect (widget, "motion_notify_event",
2478 G_CALLBACK (gtk_window_motion_notify_callback), this);
2479
2480 g_signal_connect (widget, "scroll_event",
2481 G_CALLBACK (window_scroll_event), this);
2482 if (m_scrollBar[ScrollDir_Horz])
2483 g_signal_connect (m_scrollBar[ScrollDir_Horz], "scroll_event",
2484 G_CALLBACK (window_scroll_event_hscrollbar), this);
2485 if (m_scrollBar[ScrollDir_Vert])
2486 g_signal_connect (m_scrollBar[ScrollDir_Vert], "scroll_event",
2487 G_CALLBACK (window_scroll_event), this);
2488
2489 g_signal_connect (widget, "popup_menu",
2490 G_CALLBACK (wxgtk_window_popup_menu_callback), this);
2491 g_signal_connect (widget, "enter_notify_event",
2492 G_CALLBACK (gtk_window_enter_callback), this);
2493 g_signal_connect (widget, "leave_notify_event",
2494 G_CALLBACK (gtk_window_leave_callback), this);
2495
2496 if (IsTopLevel() && m_wxwindow)
2497 g_signal_connect (m_wxwindow, "style_set",
2498 G_CALLBACK (gtk_window_style_set_callback), this);
2499 }
2500
2501 bool wxWindowGTK::Destroy()
2502 {
2503 m_hasVMT = false;
2504
2505 return wxWindowBase::Destroy();
2506 }
2507
2508 void wxWindowGTK::DoMoveWindow(int x, int y, int width, int height)
2509 {
2510 gtk_widget_set_size_request(m_widget, width, height);
2511
2512 // inform the parent to perform the move
2513 wxASSERT_MSG(m_parent && m_parent->m_wxwindow,
2514 "the parent window has no client area?");
2515 WX_PIZZA(m_parent->m_wxwindow)->move(m_widget, x, y);
2516 }
2517
2518 void wxWindowGTK::ConstrainSize()
2519 {
2520 #ifdef __WXGPE__
2521 // GPE's window manager doesn't like size hints at all, esp. when the user
2522 // has to use the virtual keyboard, so don't constrain size there
2523 if (!IsTopLevel())
2524 #endif
2525 {
2526 const wxSize minSize = GetMinSize();
2527 const wxSize maxSize = GetMaxSize();
2528 if (minSize.x > 0 && m_width < minSize.x) m_width = minSize.x;
2529 if (minSize.y > 0 && m_height < minSize.y) m_height = minSize.y;
2530 if (maxSize.x > 0 && m_width > maxSize.x) m_width = maxSize.x;
2531 if (maxSize.y > 0 && m_height > maxSize.y) m_height = maxSize.y;
2532 }
2533 }
2534
2535 void wxWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags )
2536 {
2537 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
2538 wxASSERT_MSG( (m_parent != NULL), wxT("wxWindowGTK::SetSize requires parent.\n") );
2539
2540 int currentX, currentY;
2541 GetPosition(&currentX, &currentY);
2542 if (x == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2543 x = currentX;
2544 if (y == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2545 y = currentY;
2546 AdjustForParentClientOrigin(x, y, sizeFlags);
2547
2548 // calculate the best size if we should auto size the window
2549 if ( ((sizeFlags & wxSIZE_AUTO_WIDTH) && width == -1) ||
2550 ((sizeFlags & wxSIZE_AUTO_HEIGHT) && height == -1) )
2551 {
2552 const wxSize sizeBest = GetBestSize();
2553 if ( (sizeFlags & wxSIZE_AUTO_WIDTH) && width == -1 )
2554 width = sizeBest.x;
2555 if ( (sizeFlags & wxSIZE_AUTO_HEIGHT) && height == -1 )
2556 height = sizeBest.y;
2557 }
2558
2559 const wxSize oldSize(m_width, m_height);
2560 if (width != -1)
2561 m_width = width;
2562 if (height != -1)
2563 m_height = height;
2564
2565 if (m_parent->m_wxwindow)
2566 {
2567 wxPizza* pizza = WX_PIZZA(m_parent->m_wxwindow);
2568 m_x = x + pizza->m_scroll_x;
2569 m_y = y + pizza->m_scroll_y;
2570
2571 int left_border = 0;
2572 int right_border = 0;
2573 int top_border = 0;
2574 int bottom_border = 0;
2575
2576 /* the default button has a border around it */
2577 if (gtk_widget_get_can_default(m_widget))
2578 {
2579 GtkBorder *default_border = NULL;
2580 gtk_widget_style_get( m_widget, "default_border", &default_border, NULL );
2581 if (default_border)
2582 {
2583 left_border += default_border->left;
2584 right_border += default_border->right;
2585 top_border += default_border->top;
2586 bottom_border += default_border->bottom;
2587 gtk_border_free( default_border );
2588 }
2589 }
2590
2591 DoMoveWindow( m_x - left_border,
2592 m_y - top_border,
2593 m_width+left_border+right_border,
2594 m_height+top_border+bottom_border );
2595 }
2596
2597 if (m_width != oldSize.x || m_height != oldSize.y)
2598 {
2599 // update these variables to keep size_allocate handler
2600 // from sending another size event for this change
2601 GetClientSize( &m_oldClientWidth, &m_oldClientHeight );
2602
2603 gtk_widget_queue_resize(m_widget);
2604 if (!m_nativeSizeEvent)
2605 {
2606 wxSizeEvent event( wxSize(m_width,m_height), GetId() );
2607 event.SetEventObject( this );
2608 HandleWindowEvent( event );
2609 }
2610 } else
2611 if (sizeFlags & wxSIZE_FORCE_EVENT)
2612 {
2613 wxSizeEvent event( wxSize(m_width,m_height), GetId() );
2614 event.SetEventObject( this );
2615 HandleWindowEvent( event );
2616 }
2617 }
2618
2619 bool wxWindowGTK::GTKShowFromOnIdle()
2620 {
2621 if (IsShown() && m_showOnIdle && !gtk_widget_get_visible (m_widget))
2622 {
2623 GtkAllocation alloc;
2624 alloc.x = m_x;
2625 alloc.y = m_y;
2626 alloc.width = m_width;
2627 alloc.height = m_height;
2628 gtk_widget_size_allocate( m_widget, &alloc );
2629 gtk_widget_show( m_widget );
2630 wxShowEvent eventShow(GetId(), true);
2631 eventShow.SetEventObject(this);
2632 HandleWindowEvent(eventShow);
2633 m_showOnIdle = false;
2634 return true;
2635 }
2636
2637 return false;
2638 }
2639
2640 void wxWindowGTK::OnInternalIdle()
2641 {
2642 if ( gs_deferredFocusOut )
2643 GTKHandleDeferredFocusOut();
2644
2645 // Check if we have to show window now
2646 if (GTKShowFromOnIdle()) return;
2647
2648 if ( m_dirtyTabOrder )
2649 {
2650 m_dirtyTabOrder = false;
2651 RealizeTabOrder();
2652 }
2653
2654 // Update style if the window was not yet realized when
2655 // SetBackgroundStyle() was called
2656 if (m_needsStyleChange)
2657 {
2658 SetBackgroundStyle(GetBackgroundStyle());
2659 m_needsStyleChange = false;
2660 }
2661
2662 wxWindowBase::OnInternalIdle();
2663 }
2664
2665 void wxWindowGTK::DoGetSize( int *width, int *height ) const
2666 {
2667 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2668
2669 if (width) (*width) = m_width;
2670 if (height) (*height) = m_height;
2671 }
2672
2673 void wxWindowGTK::DoSetClientSize( int width, int height )
2674 {
2675 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2676
2677 const wxSize size = GetSize();
2678 const wxSize clientSize = GetClientSize();
2679 SetSize(width + (size.x - clientSize.x), height + (size.y - clientSize.y));
2680 }
2681
2682 void wxWindowGTK::DoGetClientSize( int *width, int *height ) const
2683 {
2684 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2685
2686 int w = m_width;
2687 int h = m_height;
2688
2689 if ( m_wxwindow )
2690 {
2691 // if window is scrollable, account for scrollbars
2692 if ( GTK_IS_SCROLLED_WINDOW(m_widget) )
2693 {
2694 GtkPolicyType policy[ScrollDir_Max];
2695 gtk_scrolled_window_get_policy(GTK_SCROLLED_WINDOW(m_widget),
2696 &policy[ScrollDir_Horz],
2697 &policy[ScrollDir_Vert]);
2698
2699 for ( int i = 0; i < ScrollDir_Max; i++ )
2700 {
2701 // don't account for the scrollbars we don't have
2702 GtkRange * const range = m_scrollBar[i];
2703 if ( !range )
2704 continue;
2705
2706 // nor for the ones we have but don't current show
2707 switch ( policy[i] )
2708 {
2709 case GTK_POLICY_NEVER:
2710 // never shown so doesn't take any place
2711 continue;
2712
2713 case GTK_POLICY_ALWAYS:
2714 // no checks necessary
2715 break;
2716
2717 case GTK_POLICY_AUTOMATIC:
2718 // may be shown or not, check
2719 GtkAdjustment *adj = gtk_range_get_adjustment(range);
2720 if (gtk_adjustment_get_upper(adj) <= gtk_adjustment_get_page_size(adj))
2721 continue;
2722 }
2723
2724 GtkScrolledWindowClass *scroll_class =
2725 GTK_SCROLLED_WINDOW_CLASS( GTK_OBJECT_GET_CLASS(m_widget) );
2726
2727 GtkRequisition req;
2728 gtk_widget_size_request(GTK_WIDGET(range), &req);
2729 if (i == ScrollDir_Horz)
2730 h -= req.height + scroll_class->scrollbar_spacing;
2731 else
2732 w -= req.width + scroll_class->scrollbar_spacing;
2733 }
2734 }
2735
2736 const wxSize sizeBorders = DoGetBorderSize();
2737 w -= sizeBorders.x;
2738 h -= sizeBorders.y;
2739
2740 if (w < 0)
2741 w = 0;
2742 if (h < 0)
2743 h = 0;
2744 }
2745
2746 if (width) *width = w;
2747 if (height) *height = h;
2748 }
2749
2750 wxSize wxWindowGTK::DoGetBorderSize() const
2751 {
2752 if ( !m_wxwindow )
2753 return wxWindowBase::DoGetBorderSize();
2754
2755 int x, y;
2756 WX_PIZZA(m_wxwindow)->get_border_widths(x, y);
2757
2758 return 2*wxSize(x, y);
2759 }
2760
2761 void wxWindowGTK::DoGetPosition( int *x, int *y ) const
2762 {
2763 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2764
2765 int dx = 0;
2766 int dy = 0;
2767 if (!IsTopLevel() && m_parent && m_parent->m_wxwindow)
2768 {
2769 wxPizza* pizza = WX_PIZZA(m_parent->m_wxwindow);
2770 dx = pizza->m_scroll_x;
2771 dy = pizza->m_scroll_y;
2772 }
2773
2774 if (m_x == -1 && m_y == -1)
2775 {
2776 GdkWindow *source = NULL;
2777 if (m_wxwindow)
2778 source = gtk_widget_get_window(m_wxwindow);
2779 else
2780 source = gtk_widget_get_window(m_widget);
2781
2782 if (source)
2783 {
2784 int org_x = 0;
2785 int org_y = 0;
2786 gdk_window_get_origin( source, &org_x, &org_y );
2787
2788 if (m_parent)
2789 m_parent->ScreenToClient(&org_x, &org_y);
2790
2791 const_cast<wxWindowGTK*>(this)->m_x = org_x;
2792 const_cast<wxWindowGTK*>(this)->m_y = org_y;
2793 }
2794 }
2795
2796 if (x) (*x) = m_x - dx;
2797 if (y) (*y) = m_y - dy;
2798 }
2799
2800 void wxWindowGTK::DoClientToScreen( int *x, int *y ) const
2801 {
2802 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2803
2804 if (gtk_widget_get_window(m_widget) == NULL) return;
2805
2806 GdkWindow *source = NULL;
2807 if (m_wxwindow)
2808 source = gtk_widget_get_window(m_wxwindow);
2809 else
2810 source = gtk_widget_get_window(m_widget);
2811
2812 int org_x = 0;
2813 int org_y = 0;
2814 gdk_window_get_origin( source, &org_x, &org_y );
2815
2816 if (!m_wxwindow)
2817 {
2818 if (!gtk_widget_get_has_window(m_widget))
2819 {
2820 GtkAllocation a;
2821 gtk_widget_get_allocation(m_widget, &a);
2822 org_x += a.x;
2823 org_y += a.y;
2824 }
2825 }
2826
2827
2828 if (x)
2829 {
2830 if (GetLayoutDirection() == wxLayout_RightToLeft)
2831 *x = (GetClientSize().x - *x) + org_x;
2832 else
2833 *x += org_x;
2834 }
2835
2836 if (y) *y += org_y;
2837 }
2838
2839 void wxWindowGTK::DoScreenToClient( int *x, int *y ) const
2840 {
2841 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2842
2843 if (!gtk_widget_get_realized(m_widget)) return;
2844
2845 GdkWindow *source = NULL;
2846 if (m_wxwindow)
2847 source = gtk_widget_get_window(m_wxwindow);
2848 else
2849 source = gtk_widget_get_window(m_widget);
2850
2851 int org_x = 0;
2852 int org_y = 0;
2853 gdk_window_get_origin( source, &org_x, &org_y );
2854
2855 if (!m_wxwindow)
2856 {
2857 if (!gtk_widget_get_has_window(m_widget))
2858 {
2859 GtkAllocation a;
2860 gtk_widget_get_allocation(m_widget, &a);
2861 org_x += a.x;
2862 org_y += a.y;
2863 }
2864 }
2865
2866 if (x)
2867 {
2868 if (GetLayoutDirection() == wxLayout_RightToLeft)
2869 *x = (GetClientSize().x - *x) - org_x;
2870 else
2871 *x -= org_x;
2872 }
2873 if (y) *y -= org_y;
2874 }
2875
2876 bool wxWindowGTK::Show( bool show )
2877 {
2878 if ( !wxWindowBase::Show(show) )
2879 {
2880 // nothing to do
2881 return false;
2882 }
2883
2884 // notice that we may call Hide() before the window is created and this is
2885 // actually useful to create it hidden initially -- but we can't call
2886 // Show() before it is created
2887 if ( !m_widget )
2888 {
2889 wxASSERT_MSG( !show, "can't show invalid window" );
2890 return true;
2891 }
2892
2893 if ( show )
2894 {
2895 if ( m_showOnIdle )
2896 {
2897 // defer until later
2898 return true;
2899 }
2900
2901 gtk_widget_show(m_widget);
2902 }
2903 else // hide
2904 {
2905 gtk_widget_hide(m_widget);
2906 }
2907
2908 wxShowEvent eventShow(GetId(), show);
2909 eventShow.SetEventObject(this);
2910 HandleWindowEvent(eventShow);
2911
2912 return true;
2913 }
2914
2915 void wxWindowGTK::DoEnable( bool enable )
2916 {
2917 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2918
2919 gtk_widget_set_sensitive( m_widget, enable );
2920 if (m_wxwindow && (m_wxwindow != m_widget))
2921 gtk_widget_set_sensitive( m_wxwindow, enable );
2922 }
2923
2924 int wxWindowGTK::GetCharHeight() const
2925 {
2926 wxCHECK_MSG( (m_widget != NULL), 12, wxT("invalid window") );
2927
2928 wxFont font = GetFont();
2929 wxCHECK_MSG( font.IsOk(), 12, wxT("invalid font") );
2930
2931 PangoContext* context = gtk_widget_get_pango_context(m_widget);
2932
2933 if (!context)
2934 return 0;
2935
2936 PangoFontDescription *desc = font.GetNativeFontInfo()->description;
2937 PangoLayout *layout = pango_layout_new(context);
2938 pango_layout_set_font_description(layout, desc);
2939 pango_layout_set_text(layout, "H", 1);
2940 PangoLayoutLine *line = (PangoLayoutLine *)pango_layout_get_lines(layout)->data;
2941
2942 PangoRectangle rect;
2943 pango_layout_line_get_extents(line, NULL, &rect);
2944
2945 g_object_unref (layout);
2946
2947 return (int) PANGO_PIXELS(rect.height);
2948 }
2949
2950 int wxWindowGTK::GetCharWidth() const
2951 {
2952 wxCHECK_MSG( (m_widget != NULL), 8, wxT("invalid window") );
2953
2954 wxFont font = GetFont();
2955 wxCHECK_MSG( font.IsOk(), 8, wxT("invalid font") );
2956
2957 PangoContext* context = gtk_widget_get_pango_context(m_widget);
2958
2959 if (!context)
2960 return 0;
2961
2962 PangoFontDescription *desc = font.GetNativeFontInfo()->description;
2963 PangoLayout *layout = pango_layout_new(context);
2964 pango_layout_set_font_description(layout, desc);
2965 pango_layout_set_text(layout, "g", 1);
2966 PangoLayoutLine *line = (PangoLayoutLine *)pango_layout_get_lines(layout)->data;
2967
2968 PangoRectangle rect;
2969 pango_layout_line_get_extents(line, NULL, &rect);
2970
2971 g_object_unref (layout);
2972
2973 return (int) PANGO_PIXELS(rect.width);
2974 }
2975
2976 void wxWindowGTK::DoGetTextExtent( const wxString& string,
2977 int *x,
2978 int *y,
2979 int *descent,
2980 int *externalLeading,
2981 const wxFont *theFont ) const
2982 {
2983 wxFont fontToUse = theFont ? *theFont : GetFont();
2984
2985 wxCHECK_RET( fontToUse.IsOk(), wxT("invalid font") );
2986
2987 if (string.empty())
2988 {
2989 if (x) (*x) = 0;
2990 if (y) (*y) = 0;
2991 return;
2992 }
2993
2994 PangoContext *context = NULL;
2995 if (m_widget)
2996 context = gtk_widget_get_pango_context( m_widget );
2997
2998 if (!context)
2999 {
3000 if (x) (*x) = 0;
3001 if (y) (*y) = 0;
3002 return;
3003 }
3004
3005 PangoFontDescription *desc = fontToUse.GetNativeFontInfo()->description;
3006 PangoLayout *layout = pango_layout_new(context);
3007 pango_layout_set_font_description(layout, desc);
3008 {
3009 const wxCharBuffer data = wxGTK_CONV( string );
3010 if ( data )
3011 pango_layout_set_text(layout, data, strlen(data));
3012 }
3013
3014 PangoRectangle rect;
3015 pango_layout_get_extents(layout, NULL, &rect);
3016
3017 if (x) (*x) = (wxCoord) PANGO_PIXELS(rect.width);
3018 if (y) (*y) = (wxCoord) PANGO_PIXELS(rect.height);
3019 if (descent)
3020 {
3021 PangoLayoutIter *iter = pango_layout_get_iter(layout);
3022 int baseline = pango_layout_iter_get_baseline(iter);
3023 pango_layout_iter_free(iter);
3024 *descent = *y - PANGO_PIXELS(baseline);
3025 }
3026 if (externalLeading) (*externalLeading) = 0; // ??
3027
3028 g_object_unref (layout);
3029 }
3030
3031 void wxWindowGTK::GTKDisableFocusOutEvent()
3032 {
3033 g_signal_handlers_block_by_func( m_focusWidget,
3034 (gpointer) gtk_window_focus_out_callback, this);
3035 }
3036
3037 void wxWindowGTK::GTKEnableFocusOutEvent()
3038 {
3039 g_signal_handlers_unblock_by_func( m_focusWidget,
3040 (gpointer) gtk_window_focus_out_callback, this);
3041 }
3042
3043 bool wxWindowGTK::GTKHandleFocusIn()
3044 {
3045 // Disable default focus handling for custom windows since the default GTK+
3046 // handler issues a repaint
3047 const bool retval = m_wxwindow ? true : false;
3048
3049
3050 // NB: if there's still unprocessed deferred focus-out event (see
3051 // GTKHandleFocusOut() for explanation), we need to process it first so
3052 // that the order of focus events -- focus-out first, then focus-in
3053 // elsewhere -- is preserved
3054 if ( gs_deferredFocusOut )
3055 {
3056 if ( GTKNeedsToFilterSameWindowFocus() &&
3057 gs_deferredFocusOut == this )
3058 {
3059 // GTK+ focus changed from this wxWindow back to itself, so don't
3060 // emit any events at all
3061 wxLogTrace(TRACE_FOCUS,
3062 "filtered out spurious focus change within %s(%p, %s)",
3063 GetClassInfo()->GetClassName(), this, GetLabel());
3064 gs_deferredFocusOut = NULL;
3065 return retval;
3066 }
3067
3068 // otherwise we need to send focus-out first
3069 wxASSERT_MSG ( gs_deferredFocusOut != this,
3070 "GTKHandleFocusIn(GTKFocus_Normal) called even though focus changed back to itself - derived class should handle this" );
3071 GTKHandleDeferredFocusOut();
3072 }
3073
3074
3075 wxLogTrace(TRACE_FOCUS,
3076 "handling focus_in event for %s(%p, %s)",
3077 GetClassInfo()->GetClassName(), this, GetLabel());
3078
3079 if (m_imData)
3080 gtk_im_context_focus_in(m_imData->context);
3081
3082 gs_currentFocus = this;
3083 gs_pendingFocus = NULL;
3084
3085 #if wxUSE_CARET
3086 // caret needs to be informed about focus change
3087 wxCaret *caret = GetCaret();
3088 if ( caret )
3089 {
3090 caret->OnSetFocus();
3091 }
3092 #endif // wxUSE_CARET
3093
3094 // Notify the parent keeping track of focus for the kbd navigation
3095 // purposes that we got it.
3096 wxChildFocusEvent eventChildFocus(static_cast<wxWindow*>(this));
3097 GTKProcessEvent(eventChildFocus);
3098
3099 wxFocusEvent eventFocus(wxEVT_SET_FOCUS, GetId());
3100 eventFocus.SetEventObject(this);
3101 GTKProcessEvent(eventFocus);
3102
3103 return retval;
3104 }
3105
3106 bool wxWindowGTK::GTKHandleFocusOut()
3107 {
3108 // Disable default focus handling for custom windows since the default GTK+
3109 // handler issues a repaint
3110 const bool retval = m_wxwindow ? true : false;
3111
3112
3113 // NB: If a control is composed of several GtkWidgets and when focus
3114 // changes from one of them to another within the same wxWindow, we get
3115 // a focus-out event followed by focus-in for another GtkWidget owned
3116 // by the same wx control. We don't want to generate two spurious
3117 // wxEVT_SET_FOCUS events in this case, so we defer sending wx events
3118 // from GTKHandleFocusOut() until we know for sure it's not coming back
3119 // (i.e. in GTKHandleFocusIn() or at idle time).
3120 if ( GTKNeedsToFilterSameWindowFocus() )
3121 {
3122 wxASSERT_MSG( gs_deferredFocusOut == NULL,
3123 "deferred focus out event already pending" );
3124 wxLogTrace(TRACE_FOCUS,
3125 "deferring focus_out event for %s(%p, %s)",
3126 GetClassInfo()->GetClassName(), this, GetLabel());
3127 gs_deferredFocusOut = this;
3128 return retval;
3129 }
3130
3131 GTKHandleFocusOutNoDeferring();
3132
3133 return retval;
3134 }
3135
3136 void wxWindowGTK::GTKHandleFocusOutNoDeferring()
3137 {
3138 wxLogTrace(TRACE_FOCUS,
3139 "handling focus_out event for %s(%p, %s)",
3140 GetClassInfo()->GetClassName(), this, GetLabel());
3141
3142 if (m_imData)
3143 gtk_im_context_focus_out(m_imData->context);
3144
3145 if ( gs_currentFocus != this )
3146 {
3147 // Something is terribly wrong, gs_currentFocus is out of sync with the
3148 // real focus. We will reset it to NULL anyway, because after this
3149 // focus-out event is handled, one of the following with happen:
3150 //
3151 // * either focus will go out of the app altogether, in which case
3152 // gs_currentFocus _should_ be NULL
3153 //
3154 // * or it goes to another control, in which case focus-in event will
3155 // follow immediately and it will set gs_currentFocus to the right
3156 // value
3157 wxLogDebug("window %s(%p, %s) lost focus even though it didn't have it",
3158 GetClassInfo()->GetClassName(), this, GetLabel());
3159 }
3160 gs_currentFocus = NULL;
3161
3162 #if wxUSE_CARET
3163 // caret needs to be informed about focus change
3164 wxCaret *caret = GetCaret();
3165 if ( caret )
3166 {
3167 caret->OnKillFocus();
3168 }
3169 #endif // wxUSE_CARET
3170
3171 wxFocusEvent event( wxEVT_KILL_FOCUS, GetId() );
3172 event.SetEventObject( this );
3173 GTKProcessEvent( event );
3174 }
3175
3176 /*static*/
3177 void wxWindowGTK::GTKHandleDeferredFocusOut()
3178 {
3179 // NB: See GTKHandleFocusOut() for explanation. This function is called
3180 // from either GTKHandleFocusIn() or OnInternalIdle() to process
3181 // deferred event.
3182 if ( gs_deferredFocusOut )
3183 {
3184 wxWindowGTK *win = gs_deferredFocusOut;
3185 gs_deferredFocusOut = NULL;
3186
3187 wxLogTrace(TRACE_FOCUS,
3188 "processing deferred focus_out event for %s(%p, %s)",
3189 win->GetClassInfo()->GetClassName(), win, win->GetLabel());
3190
3191 win->GTKHandleFocusOutNoDeferring();
3192 }
3193 }
3194
3195 void wxWindowGTK::SetFocus()
3196 {
3197 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
3198
3199 // Setting "physical" focus is not immediate in GTK+ and while
3200 // gtk_widget_is_focus ("determines if the widget is the focus widget
3201 // within its toplevel", i.e. returns true for one widget per TLW, not
3202 // globally) returns true immediately after grabbing focus,
3203 // GTK_WIDGET_HAS_FOCUS (which returns true only for the one widget that
3204 // has focus at the moment) takes effect only after the window is shown
3205 // (if it was hidden at the moment of the call) or at the next event loop
3206 // iteration.
3207 //
3208 // Because we want to FindFocus() call immediately following
3209 // foo->SetFocus() to return foo, we have to keep track of "pending" focus
3210 // ourselves.
3211 gs_pendingFocus = this;
3212
3213 GtkWidget *widget = m_wxwindow ? m_wxwindow : m_focusWidget;
3214
3215 if ( GTK_IS_CONTAINER(widget) &&
3216 !gtk_widget_get_can_focus(widget) )
3217 {
3218 wxLogTrace(TRACE_FOCUS,
3219 wxT("Setting focus to a child of %s(%p, %s)"),
3220 GetClassInfo()->GetClassName(), this, GetLabel().c_str());
3221 gtk_widget_child_focus(widget, GTK_DIR_TAB_FORWARD);
3222 }
3223 else
3224 {
3225 wxLogTrace(TRACE_FOCUS,
3226 wxT("Setting focus to %s(%p, %s)"),
3227 GetClassInfo()->GetClassName(), this, GetLabel().c_str());
3228 gtk_widget_grab_focus(widget);
3229 }
3230 }
3231
3232 void wxWindowGTK::SetCanFocus(bool canFocus)
3233 {
3234 gtk_widget_set_can_focus(m_widget, canFocus);
3235
3236 if ( m_wxwindow && (m_widget != m_wxwindow) )
3237 {
3238 gtk_widget_set_can_focus(m_wxwindow, canFocus);
3239 }
3240 }
3241
3242 bool wxWindowGTK::Reparent( wxWindowBase *newParentBase )
3243 {
3244 wxCHECK_MSG( (m_widget != NULL), false, wxT("invalid window") );
3245
3246 wxWindowGTK * const newParent = (wxWindowGTK *)newParentBase;
3247
3248 wxASSERT( GTK_IS_WIDGET(m_widget) );
3249
3250 if ( !wxWindowBase::Reparent(newParent) )
3251 return false;
3252
3253 wxASSERT( GTK_IS_WIDGET(m_widget) );
3254
3255 // Notice that old m_parent pointer might be non-NULL here but the widget
3256 // still not have any parent at GTK level if it's a notebook page that had
3257 // been removed from the notebook so test this at GTK level and not wx one.
3258 if ( GtkWidget *parentGTK = gtk_widget_get_parent(m_widget) )
3259 gtk_container_remove(GTK_CONTAINER(parentGTK), m_widget);
3260
3261 wxASSERT( GTK_IS_WIDGET(m_widget) );
3262
3263 if (newParent)
3264 {
3265 if (gtk_widget_get_visible (newParent->m_widget))
3266 {
3267 m_showOnIdle = true;
3268 gtk_widget_hide( m_widget );
3269 }
3270 /* insert GTK representation */
3271 newParent->AddChildGTK(this);
3272 }
3273
3274 SetLayoutDirection(wxLayout_Default);
3275
3276 return true;
3277 }
3278
3279 void wxWindowGTK::DoAddChild(wxWindowGTK *child)
3280 {
3281 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
3282 wxASSERT_MSG( (child != NULL), wxT("invalid child window") );
3283
3284 /* add to list */
3285 AddChild( child );
3286
3287 /* insert GTK representation */
3288 AddChildGTK(child);
3289 }
3290
3291 void wxWindowGTK::AddChild(wxWindowBase *child)
3292 {
3293 wxWindowBase::AddChild(child);
3294 m_dirtyTabOrder = true;
3295 wxTheApp->WakeUpIdle();
3296 }
3297
3298 void wxWindowGTK::RemoveChild(wxWindowBase *child)
3299 {
3300 wxWindowBase::RemoveChild(child);
3301 m_dirtyTabOrder = true;
3302 wxTheApp->WakeUpIdle();
3303 }
3304
3305 /* static */
3306 wxLayoutDirection wxWindowGTK::GTKGetLayout(GtkWidget *widget)
3307 {
3308 return gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL
3309 ? wxLayout_RightToLeft
3310 : wxLayout_LeftToRight;
3311 }
3312
3313 /* static */
3314 void wxWindowGTK::GTKSetLayout(GtkWidget *widget, wxLayoutDirection dir)
3315 {
3316 wxASSERT_MSG( dir != wxLayout_Default, wxT("invalid layout direction") );
3317
3318 gtk_widget_set_direction(widget,
3319 dir == wxLayout_RightToLeft ? GTK_TEXT_DIR_RTL
3320 : GTK_TEXT_DIR_LTR);
3321 }
3322
3323 wxLayoutDirection wxWindowGTK::GetLayoutDirection() const
3324 {
3325 return GTKGetLayout(m_widget);
3326 }
3327
3328 void wxWindowGTK::SetLayoutDirection(wxLayoutDirection dir)
3329 {
3330 if ( dir == wxLayout_Default )
3331 {
3332 const wxWindow *const parent = GetParent();
3333 if ( parent )
3334 {
3335 // inherit layout from parent.
3336 dir = parent->GetLayoutDirection();
3337 }
3338 else // no parent, use global default layout
3339 {
3340 dir = wxTheApp->GetLayoutDirection();
3341 }
3342 }
3343
3344 if ( dir == wxLayout_Default )
3345 return;
3346
3347 GTKSetLayout(m_widget, dir);
3348
3349 if (m_wxwindow && (m_wxwindow != m_widget))
3350 GTKSetLayout(m_wxwindow, dir);
3351 }
3352
3353 wxCoord
3354 wxWindowGTK::AdjustForLayoutDirection(wxCoord x,
3355 wxCoord WXUNUSED(width),
3356 wxCoord WXUNUSED(widthTotal)) const
3357 {
3358 // We now mirror the coordinates of RTL windows in wxPizza
3359 return x;
3360 }
3361
3362 void wxWindowGTK::DoMoveInTabOrder(wxWindow *win, WindowOrder move)
3363 {
3364 wxWindowBase::DoMoveInTabOrder(win, move);
3365 m_dirtyTabOrder = true;
3366 wxTheApp->WakeUpIdle();
3367 }
3368
3369 bool wxWindowGTK::DoNavigateIn(int flags)
3370 {
3371 if ( flags & wxNavigationKeyEvent::WinChange )
3372 {
3373 wxFAIL_MSG( wxT("not implemented") );
3374
3375 return false;
3376 }
3377 else // navigate inside the container
3378 {
3379 wxWindow *parent = wxGetTopLevelParent((wxWindow *)this);
3380 wxCHECK_MSG( parent, false, wxT("every window must have a TLW parent") );
3381
3382 GtkDirectionType dir;
3383 dir = flags & wxNavigationKeyEvent::IsForward ? GTK_DIR_TAB_FORWARD
3384 : GTK_DIR_TAB_BACKWARD;
3385
3386 gboolean rc;
3387 g_signal_emit_by_name(parent->m_widget, "focus", dir, &rc);
3388
3389 return rc == TRUE;
3390 }
3391 }
3392
3393 bool wxWindowGTK::GTKWidgetNeedsMnemonic() const
3394 {
3395 // none needed by default
3396 return false;
3397 }
3398
3399 void wxWindowGTK::GTKWidgetDoSetMnemonic(GtkWidget* WXUNUSED(w))
3400 {
3401 // nothing to do by default since none is needed
3402 }
3403
3404 void wxWindowGTK::RealizeTabOrder()
3405 {
3406 if (m_wxwindow)
3407 {
3408 if ( !m_children.empty() )
3409 {
3410 // we don't only construct the correct focus chain but also use
3411 // this opportunity to update the mnemonic widgets for the widgets
3412 // that need them
3413
3414 GList *chain = NULL;
3415 wxWindowGTK* mnemonicWindow = NULL;
3416
3417 for ( wxWindowList::const_iterator i = m_children.begin();
3418 i != m_children.end();
3419 ++i )
3420 {
3421 wxWindowGTK *win = *i;
3422
3423 bool focusableFromKeyboard = win->AcceptsFocusFromKeyboard();
3424
3425 if ( mnemonicWindow )
3426 {
3427 if ( focusableFromKeyboard )
3428 {
3429 // wxComboBox et al. needs to focus on on a different
3430 // widget than m_widget, so if the main widget isn't
3431 // focusable try the connect widget
3432 GtkWidget* w = win->m_widget;
3433 if ( !gtk_widget_get_can_focus(w) )
3434 {
3435 w = win->GetConnectWidget();
3436 if ( !gtk_widget_get_can_focus(w) )
3437 w = NULL;
3438 }
3439
3440 if ( w )
3441 {
3442 mnemonicWindow->GTKWidgetDoSetMnemonic(w);
3443 mnemonicWindow = NULL;
3444 }
3445 }
3446 }
3447 else if ( win->GTKWidgetNeedsMnemonic() )
3448 {
3449 mnemonicWindow = win;
3450 }
3451
3452 if ( focusableFromKeyboard )
3453 chain = g_list_prepend(chain, win->m_widget);
3454 }
3455
3456 chain = g_list_reverse(chain);
3457
3458 gtk_container_set_focus_chain(GTK_CONTAINER(m_wxwindow), chain);
3459 g_list_free(chain);
3460 }
3461 else // no children
3462 {
3463 gtk_container_unset_focus_chain(GTK_CONTAINER(m_wxwindow));
3464 }
3465 }
3466 }
3467
3468 void wxWindowGTK::Raise()
3469 {
3470 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3471
3472 if (m_wxwindow && gtk_widget_get_window(m_wxwindow))
3473 {
3474 gdk_window_raise(gtk_widget_get_window(m_wxwindow));
3475 }
3476 else if (gtk_widget_get_window(m_widget))
3477 {
3478 gdk_window_raise(gtk_widget_get_window(m_widget));
3479 }
3480 }
3481
3482 void wxWindowGTK::Lower()
3483 {
3484 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3485
3486 if (m_wxwindow && gtk_widget_get_window(m_wxwindow))
3487 {
3488 gdk_window_lower(gtk_widget_get_window(m_wxwindow));
3489 }
3490 else if (gtk_widget_get_window(m_widget))
3491 {
3492 gdk_window_lower(gtk_widget_get_window(m_widget));
3493 }
3494 }
3495
3496 bool wxWindowGTK::SetCursor( const wxCursor &cursor )
3497 {
3498 if ( !wxWindowBase::SetCursor(cursor.IsOk() ? cursor : *wxSTANDARD_CURSOR) )
3499 return false;
3500
3501 GTKUpdateCursor();
3502
3503 return true;
3504 }
3505
3506 void wxWindowGTK::GTKUpdateCursor(bool update_self /*=true*/, bool recurse /*=true*/)
3507 {
3508 if (update_self)
3509 {
3510 wxCursor cursor(g_globalCursor.IsOk() ? g_globalCursor : GetCursor());
3511 if ( cursor.IsOk() )
3512 {
3513 wxArrayGdkWindows windowsThis;
3514 GdkWindow* window = GTKGetWindow(windowsThis);
3515 if (window)
3516 gdk_window_set_cursor( window, cursor.GetCursor() );
3517 else
3518 {
3519 const size_t count = windowsThis.size();
3520 for ( size_t n = 0; n < count; n++ )
3521 {
3522 GdkWindow *win = windowsThis[n];
3523 // It can be zero if the window has not been realized yet.
3524 if ( win )
3525 {
3526 gdk_window_set_cursor(win, cursor.GetCursor());
3527 }
3528 }
3529 }
3530 }
3531 }
3532
3533 if (recurse)
3534 {
3535 for (wxWindowList::iterator it = GetChildren().begin(); it != GetChildren().end(); ++it)
3536 {
3537 (*it)->GTKUpdateCursor( true );
3538 }
3539 }
3540 }
3541
3542 void wxWindowGTK::WarpPointer( int x, int y )
3543 {
3544 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3545
3546 ClientToScreen(&x, &y);
3547 GdkDisplay* display = gtk_widget_get_display(m_widget);
3548 GdkScreen* screen = gtk_widget_get_screen(m_widget);
3549 #ifdef __WXGTK30__
3550 GdkDeviceManager* manager = gdk_display_get_device_manager(display);
3551 gdk_device_warp(gdk_device_manager_get_client_pointer(manager), screen, x, y);
3552 #else
3553 XWarpPointer(GDK_DISPLAY_XDISPLAY(display),
3554 None,
3555 GDK_WINDOW_XID(gdk_screen_get_root_window(screen)),
3556 0, 0, 0, 0, x, y);
3557 #endif
3558 }
3559
3560 wxWindowGTK::ScrollDir wxWindowGTK::ScrollDirFromRange(GtkRange *range) const
3561 {
3562 // find the scrollbar which generated the event
3563 for ( int dir = 0; dir < ScrollDir_Max; dir++ )
3564 {
3565 if ( range == m_scrollBar[dir] )
3566 return (ScrollDir)dir;
3567 }
3568
3569 wxFAIL_MSG( wxT("event from unknown scrollbar received") );
3570
3571 return ScrollDir_Max;
3572 }
3573
3574 bool wxWindowGTK::DoScrollByUnits(ScrollDir dir, ScrollUnit unit, int units)
3575 {
3576 bool changed = false;
3577 GtkRange* range = m_scrollBar[dir];
3578 if ( range && units )
3579 {
3580 GtkAdjustment* adj = gtk_range_get_adjustment(range);
3581 double inc = unit == ScrollUnit_Line ? gtk_adjustment_get_step_increment(adj)
3582 : gtk_adjustment_get_page_increment(adj);
3583
3584 const int posOld = wxRound(gtk_adjustment_get_value(adj));
3585 gtk_range_set_value(range, posOld + units*inc);
3586
3587 changed = wxRound(gtk_adjustment_get_value(adj)) != posOld;
3588 }
3589
3590 return changed;
3591 }
3592
3593 bool wxWindowGTK::ScrollLines(int lines)
3594 {
3595 return DoScrollByUnits(ScrollDir_Vert, ScrollUnit_Line, lines);
3596 }
3597
3598 bool wxWindowGTK::ScrollPages(int pages)
3599 {
3600 return DoScrollByUnits(ScrollDir_Vert, ScrollUnit_Page, pages);
3601 }
3602
3603 void wxWindowGTK::Refresh(bool WXUNUSED(eraseBackground),
3604 const wxRect *rect)
3605 {
3606 if ( !m_widget )
3607 {
3608 // it is valid to call Refresh() for a window which hasn't been created
3609 // yet, it simply doesn't do anything in this case
3610 return;
3611 }
3612
3613 if (!m_wxwindow)
3614 {
3615 if (rect)
3616 gtk_widget_queue_draw_area( m_widget, rect->x, rect->y, rect->width, rect->height );
3617 else
3618 gtk_widget_queue_draw( m_widget );
3619 }
3620 else
3621 {
3622 // Just return if the widget or one of its ancestors isn't mapped
3623 GtkWidget *w;
3624 for (w = m_wxwindow; w != NULL; w = gtk_widget_get_parent(w))
3625 if (!gtk_widget_get_mapped (w))
3626 return;
3627
3628 GdkWindow* window = GTKGetDrawingWindow();
3629 if (rect)
3630 {
3631 int x = rect->x;
3632 if (GetLayoutDirection() == wxLayout_RightToLeft)
3633 x = GetClientSize().x - x - rect->width;
3634 GdkRectangle r;
3635 r.x = rect->x;
3636 r.y = rect->y;
3637 r.width = rect->width;
3638 r.height = rect->height;
3639 gdk_window_invalidate_rect(window, &r, true);
3640 }
3641 else
3642 gdk_window_invalidate_rect(window, NULL, true);
3643 }
3644 }
3645
3646 void wxWindowGTK::Update()
3647 {
3648 if (m_widget && gtk_widget_get_mapped(m_widget))
3649 {
3650 GdkDisplay* display = gtk_widget_get_display(m_widget);
3651 // Flush everything out to the server, and wait for it to finish.
3652 // This ensures nothing will overwrite the drawing we are about to do.
3653 gdk_display_sync(display);
3654
3655 GdkWindow* window = GTKGetDrawingWindow();
3656 if (window == NULL)
3657 window = gtk_widget_get_window(m_widget);
3658 gdk_window_process_updates(window, true);
3659
3660 // Flush again, but no need to wait for it to finish
3661 gdk_display_flush(display);
3662 }
3663 }
3664
3665 bool wxWindowGTK::DoIsExposed( int x, int y ) const
3666 {
3667 return m_updateRegion.Contains(x, y) != wxOutRegion;
3668 }
3669
3670 bool wxWindowGTK::DoIsExposed( int x, int y, int w, int h ) const
3671 {
3672 if (GetLayoutDirection() == wxLayout_RightToLeft)
3673 return m_updateRegion.Contains(x-w, y, w, h) != wxOutRegion;
3674 else
3675 return m_updateRegion.Contains(x, y, w, h) != wxOutRegion;
3676 }
3677
3678 void wxWindowGTK::GtkSendPaintEvents()
3679 {
3680 if (!m_wxwindow)
3681 {
3682 m_updateRegion.Clear();
3683 return;
3684 }
3685
3686 // Clip to paint region in wxClientDC
3687 m_clipPaintRegion = true;
3688
3689 m_nativeUpdateRegion = m_updateRegion;
3690
3691 if (GetLayoutDirection() == wxLayout_RightToLeft)
3692 {
3693 // Transform m_updateRegion under RTL
3694 m_updateRegion.Clear();
3695
3696 gint width;
3697 gdk_drawable_get_size(gtk_widget_get_window(m_wxwindow), &width, NULL);
3698
3699 wxRegionIterator upd( m_nativeUpdateRegion );
3700 while (upd)
3701 {
3702 wxRect rect;
3703 rect.x = upd.GetX();
3704 rect.y = upd.GetY();
3705 rect.width = upd.GetWidth();
3706 rect.height = upd.GetHeight();
3707
3708 rect.x = width - rect.x - rect.width;
3709 m_updateRegion.Union( rect );
3710
3711 ++upd;
3712 }
3713 }
3714
3715 switch ( GetBackgroundStyle() )
3716 {
3717 case wxBG_STYLE_ERASE:
3718 {
3719 wxWindowDC dc( (wxWindow*)this );
3720 dc.SetDeviceClippingRegion( m_updateRegion );
3721
3722 // Work around gtk-qt <= 0.60 bug whereby the window colour
3723 // remains grey
3724 if ( UseBgCol() &&
3725 wxSystemOptions::
3726 GetOptionInt("gtk.window.force-background-colour") )
3727 {
3728 dc.SetBackground(GetBackgroundColour());
3729 dc.Clear();
3730 }
3731
3732 wxEraseEvent erase_event( GetId(), &dc );
3733 erase_event.SetEventObject( this );
3734
3735 if ( HandleWindowEvent(erase_event) )
3736 {
3737 // background erased, don't do it again
3738 break;
3739 }
3740 }
3741 // fall through
3742
3743 case wxBG_STYLE_SYSTEM:
3744 if ( GetThemeEnabled() )
3745 {
3746 // find ancestor from which to steal background
3747 wxWindow *parent = wxGetTopLevelParent((wxWindow *)this);
3748 if (!parent)
3749 parent = (wxWindow*)this;
3750
3751 if (gtk_widget_get_mapped(parent->m_widget))
3752 {
3753 wxRegionIterator upd( m_nativeUpdateRegion );
3754 while (upd)
3755 {
3756 GdkRectangle rect;
3757 rect.x = upd.GetX();
3758 rect.y = upd.GetY();
3759 rect.width = upd.GetWidth();
3760 rect.height = upd.GetHeight();
3761
3762 gtk_paint_flat_box(gtk_widget_get_style(parent->m_widget),
3763 GTKGetDrawingWindow(),
3764 gtk_widget_get_state(m_wxwindow),
3765 GTK_SHADOW_NONE,
3766 &rect,
3767 parent->m_widget,
3768 (char *)"base",
3769 0, 0, -1, -1 );
3770
3771 ++upd;
3772 }
3773 }
3774 }
3775 break;
3776
3777 case wxBG_STYLE_PAINT:
3778 // nothing to do: window will be painted over in EVT_PAINT
3779 break;
3780
3781 default:
3782 wxFAIL_MSG( "unsupported background style" );
3783 }
3784
3785 wxNcPaintEvent nc_paint_event( GetId() );
3786 nc_paint_event.SetEventObject( this );
3787 HandleWindowEvent( nc_paint_event );
3788
3789 wxPaintEvent paint_event( GetId() );
3790 paint_event.SetEventObject( this );
3791 HandleWindowEvent( paint_event );
3792
3793 m_clipPaintRegion = false;
3794
3795 m_updateRegion.Clear();
3796 m_nativeUpdateRegion.Clear();
3797 }
3798
3799 void wxWindowGTK::SetDoubleBuffered( bool on )
3800 {
3801 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3802
3803 if ( m_wxwindow )
3804 gtk_widget_set_double_buffered( m_wxwindow, on );
3805 }
3806
3807 bool wxWindowGTK::IsDoubleBuffered() const
3808 {
3809 return gtk_widget_get_double_buffered( m_wxwindow );
3810 }
3811
3812 void wxWindowGTK::ClearBackground()
3813 {
3814 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
3815 }
3816
3817 #if wxUSE_TOOLTIPS
3818 void wxWindowGTK::DoSetToolTip( wxToolTip *tip )
3819 {
3820 if (m_tooltip != tip)
3821 {
3822 wxWindowBase::DoSetToolTip(tip);
3823
3824 if (m_tooltip)
3825 m_tooltip->GTKSetWindow(static_cast<wxWindow*>(this));
3826 else
3827 GTKApplyToolTip(NULL);
3828 }
3829 }
3830
3831 void wxWindowGTK::GTKApplyToolTip(const char* tip)
3832 {
3833 wxToolTip::GTKApply(GetConnectWidget(), tip);
3834 }
3835 #endif // wxUSE_TOOLTIPS
3836
3837 bool wxWindowGTK::SetBackgroundColour( const wxColour &colour )
3838 {
3839 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
3840
3841 if (!wxWindowBase::SetBackgroundColour(colour))
3842 return false;
3843
3844 if (colour.IsOk())
3845 {
3846 // We need the pixel value e.g. for background clearing.
3847 m_backgroundColour.CalcPixel(gtk_widget_get_colormap(m_widget));
3848 }
3849
3850 // apply style change (forceStyle=true so that new style is applied
3851 // even if the bg colour changed from valid to wxNullColour)
3852 GTKApplyWidgetStyle(true);
3853
3854 return true;
3855 }
3856
3857 bool wxWindowGTK::SetForegroundColour( const wxColour &colour )
3858 {
3859 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
3860
3861 if (!wxWindowBase::SetForegroundColour(colour))
3862 {
3863 return false;
3864 }
3865
3866 if (colour.IsOk())
3867 {
3868 // We need the pixel value e.g. for background clearing.
3869 m_foregroundColour.CalcPixel(gtk_widget_get_colormap(m_widget));
3870 }
3871
3872 // apply style change (forceStyle=true so that new style is applied
3873 // even if the bg colour changed from valid to wxNullColour):
3874 GTKApplyWidgetStyle(true);
3875
3876 return true;
3877 }
3878
3879 PangoContext *wxWindowGTK::GTKGetPangoDefaultContext()
3880 {
3881 return gtk_widget_get_pango_context( m_widget );
3882 }
3883
3884 GtkRcStyle *wxWindowGTK::GTKCreateWidgetStyle(bool forceStyle)
3885 {
3886 // do we need to apply any changes at all?
3887 if ( !forceStyle &&
3888 !m_font.IsOk() &&
3889 !m_foregroundColour.IsOk() && !m_backgroundColour.IsOk() )
3890 {
3891 return NULL;
3892 }
3893
3894 GtkRcStyle *style = gtk_rc_style_new();
3895
3896 if ( m_font.IsOk() )
3897 {
3898 style->font_desc =
3899 pango_font_description_copy( m_font.GetNativeFontInfo()->description );
3900 }
3901
3902 int flagsNormal = 0,
3903 flagsPrelight = 0,
3904 flagsActive = 0,
3905 flagsInsensitive = 0;
3906
3907 if ( m_foregroundColour.IsOk() )
3908 {
3909 const GdkColor *fg = m_foregroundColour.GetColor();
3910
3911 style->fg[GTK_STATE_NORMAL] =
3912 style->text[GTK_STATE_NORMAL] = *fg;
3913 flagsNormal |= GTK_RC_FG | GTK_RC_TEXT;
3914
3915 style->fg[GTK_STATE_PRELIGHT] =
3916 style->text[GTK_STATE_PRELIGHT] = *fg;
3917 flagsPrelight |= GTK_RC_FG | GTK_RC_TEXT;
3918
3919 style->fg[GTK_STATE_ACTIVE] =
3920 style->text[GTK_STATE_ACTIVE] = *fg;
3921 flagsActive |= GTK_RC_FG | GTK_RC_TEXT;
3922 }
3923
3924 if ( m_backgroundColour.IsOk() )
3925 {
3926 const GdkColor *bg = m_backgroundColour.GetColor();
3927
3928 style->bg[GTK_STATE_NORMAL] =
3929 style->base[GTK_STATE_NORMAL] = *bg;
3930 flagsNormal |= GTK_RC_BG | GTK_RC_BASE;
3931
3932 style->bg[GTK_STATE_PRELIGHT] =
3933 style->base[GTK_STATE_PRELIGHT] = *bg;
3934 flagsPrelight |= GTK_RC_BG | GTK_RC_BASE;
3935
3936 style->bg[GTK_STATE_ACTIVE] =
3937 style->base[GTK_STATE_ACTIVE] = *bg;
3938 flagsActive |= GTK_RC_BG | GTK_RC_BASE;
3939
3940 style->bg[GTK_STATE_INSENSITIVE] =
3941 style->base[GTK_STATE_INSENSITIVE] = *bg;
3942 flagsInsensitive |= GTK_RC_BG | GTK_RC_BASE;
3943 }
3944
3945 style->color_flags[GTK_STATE_NORMAL] = (GtkRcFlags)flagsNormal;
3946 style->color_flags[GTK_STATE_PRELIGHT] = (GtkRcFlags)flagsPrelight;
3947 style->color_flags[GTK_STATE_ACTIVE] = (GtkRcFlags)flagsActive;
3948 style->color_flags[GTK_STATE_INSENSITIVE] = (GtkRcFlags)flagsInsensitive;
3949
3950 return style;
3951 }
3952
3953 void wxWindowGTK::GTKApplyWidgetStyle(bool forceStyle)
3954 {
3955 GtkRcStyle *style = GTKCreateWidgetStyle(forceStyle);
3956 if ( style )
3957 {
3958 DoApplyWidgetStyle(style);
3959 g_object_unref(style);
3960 }
3961
3962 // Style change may affect GTK+'s size calculation:
3963 InvalidateBestSize();
3964 }
3965
3966 void wxWindowGTK::DoApplyWidgetStyle(GtkRcStyle *style)
3967 {
3968 if ( m_wxwindow )
3969 {
3970 // block the signal temporarily to avoid sending
3971 // wxSysColourChangedEvents when we change the colours ourselves
3972 bool unblock = false;
3973 if ( IsTopLevel() )
3974 {
3975 unblock = true;
3976 g_signal_handlers_block_by_func(
3977 m_wxwindow, (void *)gtk_window_style_set_callback, this);
3978 }
3979
3980 gtk_widget_modify_style(m_wxwindow, style);
3981
3982 if ( unblock )
3983 {
3984 g_signal_handlers_unblock_by_func(
3985 m_wxwindow, (void *)gtk_window_style_set_callback, this);
3986 }
3987 }
3988 else
3989 {
3990 gtk_widget_modify_style(m_widget, style);
3991 }
3992 }
3993
3994 bool wxWindowGTK::SetBackgroundStyle(wxBackgroundStyle style)
3995 {
3996 wxWindowBase::SetBackgroundStyle(style);
3997
3998 if ( style == wxBG_STYLE_PAINT )
3999 {
4000 GdkWindow *window;
4001 if ( m_wxwindow )
4002 {
4003 window = GTKGetDrawingWindow();
4004 }
4005 else
4006 {
4007 GtkWidget * const w = GetConnectWidget();
4008 window = w ? gtk_widget_get_window(w) : NULL;
4009 }
4010
4011 if (window)
4012 {
4013 // Make sure GDK/X11 doesn't refresh the window
4014 // automatically.
4015 gdk_window_set_back_pixmap( window, None, False );
4016 #ifdef __X__
4017 Display* display = GDK_WINDOW_DISPLAY(window);
4018 XFlush(display);
4019 #endif
4020 m_needsStyleChange = false;
4021 }
4022 else // window not realized yet
4023 {
4024 // Do in OnIdle, because the window is not yet available
4025 m_needsStyleChange = true;
4026 }
4027
4028 // Don't apply widget style, or we get a grey background
4029 }
4030 else
4031 {
4032 // apply style change (forceStyle=true so that new style is applied
4033 // even if the bg colour changed from valid to wxNullColour):
4034 GTKApplyWidgetStyle(true);
4035 }
4036
4037 return true;
4038 }
4039
4040 // ----------------------------------------------------------------------------
4041 // Pop-up menu stuff
4042 // ----------------------------------------------------------------------------
4043
4044 #if wxUSE_MENUS_NATIVE
4045
4046 extern "C" {
4047 static
4048 void wxPopupMenuPositionCallback( GtkMenu *menu,
4049 gint *x, gint *y,
4050 gboolean * WXUNUSED(whatever),
4051 gpointer user_data )
4052 {
4053 // ensure that the menu appears entirely on screen
4054 GtkRequisition req;
4055 gtk_widget_get_child_requisition(GTK_WIDGET(menu), &req);
4056
4057 wxSize sizeScreen = wxGetDisplaySize();
4058 wxPoint *pos = (wxPoint*)user_data;
4059
4060 gint xmax = sizeScreen.x - req.width,
4061 ymax = sizeScreen.y - req.height;
4062
4063 *x = pos->x < xmax ? pos->x : xmax;
4064 *y = pos->y < ymax ? pos->y : ymax;
4065 }
4066 }
4067
4068 bool wxWindowGTK::DoPopupMenu( wxMenu *menu, int x, int y )
4069 {
4070 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
4071
4072 menu->UpdateUI();
4073
4074 wxPoint pos;
4075 gpointer userdata;
4076 GtkMenuPositionFunc posfunc;
4077 if ( x == -1 && y == -1 )
4078 {
4079 // use GTK's default positioning algorithm
4080 userdata = NULL;
4081 posfunc = NULL;
4082 }
4083 else
4084 {
4085 pos = ClientToScreen(wxPoint(x, y));
4086 userdata = &pos;
4087 posfunc = wxPopupMenuPositionCallback;
4088 }
4089
4090 menu->m_popupShown = true;
4091 gtk_menu_popup(
4092 GTK_MENU(menu->m_menu),
4093 NULL, // parent menu shell
4094 NULL, // parent menu item
4095 posfunc, // function to position it
4096 userdata, // client data
4097 0, // button used to activate it
4098 gtk_get_current_event_time()
4099 );
4100
4101 while (menu->m_popupShown)
4102 {
4103 gtk_main_iteration();
4104 }
4105
4106 return true;
4107 }
4108
4109 #endif // wxUSE_MENUS_NATIVE
4110
4111 #if wxUSE_DRAG_AND_DROP
4112
4113 void wxWindowGTK::SetDropTarget( wxDropTarget *dropTarget )
4114 {
4115 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4116
4117 GtkWidget *dnd_widget = GetConnectWidget();
4118
4119 if (m_dropTarget) m_dropTarget->GtkUnregisterWidget( dnd_widget );
4120
4121 if (m_dropTarget) delete m_dropTarget;
4122 m_dropTarget = dropTarget;
4123
4124 if (m_dropTarget) m_dropTarget->GtkRegisterWidget( dnd_widget );
4125 }
4126
4127 #endif // wxUSE_DRAG_AND_DROP
4128
4129 GtkWidget* wxWindowGTK::GetConnectWidget()
4130 {
4131 GtkWidget *connect_widget = m_widget;
4132 if (m_wxwindow) connect_widget = m_wxwindow;
4133
4134 return connect_widget;
4135 }
4136
4137 bool wxWindowGTK::GTKIsOwnWindow(GdkWindow *window) const
4138 {
4139 wxArrayGdkWindows windowsThis;
4140 GdkWindow * const winThis = GTKGetWindow(windowsThis);
4141
4142 return winThis ? window == winThis
4143 : windowsThis.Index(window) != wxNOT_FOUND;
4144 }
4145
4146 GdkWindow *wxWindowGTK::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
4147 {
4148 return m_wxwindow ? GTKGetDrawingWindow() : gtk_widget_get_window(m_widget);
4149 }
4150
4151 bool wxWindowGTK::SetFont( const wxFont &font )
4152 {
4153 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
4154
4155 if (!wxWindowBase::SetFont(font))
4156 return false;
4157
4158 // apply style change (forceStyle=true so that new style is applied
4159 // even if the font changed from valid to wxNullFont):
4160 GTKApplyWidgetStyle(true);
4161
4162 return true;
4163 }
4164
4165 void wxWindowGTK::DoCaptureMouse()
4166 {
4167 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4168
4169 GdkWindow *window = NULL;
4170 if (m_wxwindow)
4171 window = GTKGetDrawingWindow();
4172 else
4173 window = gtk_widget_get_window(GetConnectWidget());
4174
4175 wxCHECK_RET( window, wxT("CaptureMouse() failed") );
4176
4177 const wxCursor* cursor = &m_cursor;
4178 if (!cursor->IsOk())
4179 cursor = wxSTANDARD_CURSOR;
4180
4181 gdk_pointer_grab( window, FALSE,
4182 (GdkEventMask)
4183 (GDK_BUTTON_PRESS_MASK |
4184 GDK_BUTTON_RELEASE_MASK |
4185 GDK_POINTER_MOTION_HINT_MASK |
4186 GDK_POINTER_MOTION_MASK),
4187 NULL,
4188 cursor->GetCursor(),
4189 (guint32)GDK_CURRENT_TIME );
4190 g_captureWindow = this;
4191 g_captureWindowHasMouse = true;
4192 }
4193
4194 void wxWindowGTK::DoReleaseMouse()
4195 {
4196 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4197
4198 wxCHECK_RET( g_captureWindow, wxT("can't release mouse - not captured") );
4199
4200 g_captureWindow = NULL;
4201
4202 GdkWindow *window = NULL;
4203 if (m_wxwindow)
4204 window = GTKGetDrawingWindow();
4205 else
4206 window = gtk_widget_get_window(GetConnectWidget());
4207
4208 if (!window)
4209 return;
4210
4211 gdk_pointer_ungrab ( (guint32)GDK_CURRENT_TIME );
4212 }
4213
4214 void wxWindowGTK::GTKReleaseMouseAndNotify()
4215 {
4216 DoReleaseMouse();
4217 wxMouseCaptureLostEvent evt(GetId());
4218 evt.SetEventObject( this );
4219 HandleWindowEvent( evt );
4220 }
4221
4222 /* static */
4223 wxWindow *wxWindowBase::GetCapture()
4224 {
4225 return (wxWindow *)g_captureWindow;
4226 }
4227
4228 bool wxWindowGTK::IsRetained() const
4229 {
4230 return false;
4231 }
4232
4233 void wxWindowGTK::SetScrollbar(int orient,
4234 int pos,
4235 int thumbVisible,
4236 int range,
4237 bool WXUNUSED(update))
4238 {
4239 const int dir = ScrollDirFromOrient(orient);
4240 GtkRange* const sb = m_scrollBar[dir];
4241 wxCHECK_RET( sb, wxT("this window is not scrollable") );
4242
4243 if (range <= 0)
4244 {
4245 // GtkRange requires upper > lower
4246 range =
4247 thumbVisible = 1;
4248 }
4249
4250 g_signal_handlers_block_by_func(
4251 sb, (void*)gtk_scrollbar_value_changed, this);
4252
4253 gtk_range_set_increments(sb, 1, thumbVisible);
4254 gtk_adjustment_set_page_size(gtk_range_get_adjustment(sb), thumbVisible);
4255 gtk_range_set_range(sb, 0, range);
4256 gtk_range_set_value(sb, pos);
4257 m_scrollPos[dir] = gtk_range_get_value(sb);
4258
4259 g_signal_handlers_unblock_by_func(
4260 sb, (void*)gtk_scrollbar_value_changed, this);
4261 }
4262
4263 void wxWindowGTK::SetScrollPos(int orient, int pos, bool WXUNUSED(refresh))
4264 {
4265 const int dir = ScrollDirFromOrient(orient);
4266 GtkRange * const sb = m_scrollBar[dir];
4267 wxCHECK_RET( sb, wxT("this window is not scrollable") );
4268
4269 // This check is more than an optimization. Without it, the slider
4270 // will not move smoothly while tracking when using wxScrollHelper.
4271 if (GetScrollPos(orient) != pos)
4272 {
4273 g_signal_handlers_block_by_func(
4274 sb, (void*)gtk_scrollbar_value_changed, this);
4275
4276 gtk_range_set_value(sb, pos);
4277 m_scrollPos[dir] = gtk_range_get_value(sb);
4278
4279 g_signal_handlers_unblock_by_func(
4280 sb, (void*)gtk_scrollbar_value_changed, this);
4281 }
4282 }
4283
4284 int wxWindowGTK::GetScrollThumb(int orient) const
4285 {
4286 GtkRange * const sb = m_scrollBar[ScrollDirFromOrient(orient)];
4287 wxCHECK_MSG( sb, 0, wxT("this window is not scrollable") );
4288
4289 return wxRound(gtk_adjustment_get_page_size(gtk_range_get_adjustment(sb)));
4290 }
4291
4292 int wxWindowGTK::GetScrollPos( int orient ) const
4293 {
4294 GtkRange * const sb = m_scrollBar[ScrollDirFromOrient(orient)];
4295 wxCHECK_MSG( sb, 0, wxT("this window is not scrollable") );
4296
4297 return wxRound(gtk_range_get_value(sb));
4298 }
4299
4300 int wxWindowGTK::GetScrollRange( int orient ) const
4301 {
4302 GtkRange * const sb = m_scrollBar[ScrollDirFromOrient(orient)];
4303 wxCHECK_MSG( sb, 0, wxT("this window is not scrollable") );
4304
4305 return wxRound(gtk_adjustment_get_upper(gtk_range_get_adjustment(sb)));
4306 }
4307
4308 // Determine if increment is the same as +/-x, allowing for some small
4309 // difference due to possible inexactness in floating point arithmetic
4310 static inline bool IsScrollIncrement(double increment, double x)
4311 {
4312 wxASSERT(increment > 0);
4313 const double tolerance = 1.0 / 1024;
4314 return fabs(increment - fabs(x)) < tolerance;
4315 }
4316
4317 wxEventType wxWindowGTK::GTKGetScrollEventType(GtkRange* range)
4318 {
4319 wxASSERT(range == m_scrollBar[0] || range == m_scrollBar[1]);
4320
4321 const int barIndex = range == m_scrollBar[1];
4322
4323 const double value = gtk_range_get_value(range);
4324
4325 // save previous position
4326 const double oldPos = m_scrollPos[barIndex];
4327 // update current position
4328 m_scrollPos[barIndex] = value;
4329 // If event should be ignored, or integral position has not changed
4330 if (!m_hasVMT || g_blockEventsOnDrag || wxRound(value) == wxRound(oldPos))
4331 {
4332 return wxEVT_NULL;
4333 }
4334
4335 wxEventType eventType = wxEVT_SCROLL_THUMBTRACK;
4336 if (!m_isScrolling)
4337 {
4338 // Difference from last change event
4339 const double diff = value - oldPos;
4340 const bool isDown = diff > 0;
4341
4342 GtkAdjustment* adj = gtk_range_get_adjustment(range);
4343 if (IsScrollIncrement(gtk_adjustment_get_step_increment(adj), diff))
4344 {
4345 eventType = isDown ? wxEVT_SCROLL_LINEDOWN : wxEVT_SCROLL_LINEUP;
4346 }
4347 else if (IsScrollIncrement(gtk_adjustment_get_page_increment(adj), diff))
4348 {
4349 eventType = isDown ? wxEVT_SCROLL_PAGEDOWN : wxEVT_SCROLL_PAGEUP;
4350 }
4351 else if (m_mouseButtonDown)
4352 {
4353 // Assume track event
4354 m_isScrolling = true;
4355 }
4356 }
4357 return eventType;
4358 }
4359
4360 void wxWindowGTK::ScrollWindow( int dx, int dy, const wxRect* WXUNUSED(rect) )
4361 {
4362 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4363
4364 wxCHECK_RET( m_wxwindow != NULL, wxT("window needs client area for scrolling") );
4365
4366 // No scrolling requested.
4367 if ((dx == 0) && (dy == 0)) return;
4368
4369 m_clipPaintRegion = true;
4370
4371 WX_PIZZA(m_wxwindow)->scroll(dx, dy);
4372
4373 m_clipPaintRegion = false;
4374
4375 #if wxUSE_CARET
4376 bool restoreCaret = (GetCaret() != NULL && GetCaret()->IsVisible());
4377 if (restoreCaret)
4378 {
4379 wxRect caretRect(GetCaret()->GetPosition(), GetCaret()->GetSize());
4380 if (dx > 0)
4381 caretRect.width += dx;
4382 else
4383 {
4384 caretRect.x += dx; caretRect.width -= dx;
4385 }
4386 if (dy > 0)
4387 caretRect.height += dy;
4388 else
4389 {
4390 caretRect.y += dy; caretRect.height -= dy;
4391 }
4392
4393 RefreshRect(caretRect);
4394 }
4395 #endif // wxUSE_CARET
4396 }
4397
4398 void wxWindowGTK::GTKScrolledWindowSetBorder(GtkWidget* w, int wxstyle)
4399 {
4400 //RN: Note that static controls usually have no border on gtk, so maybe
4401 //it makes sense to treat that as simply no border at the wx level
4402 //as well...
4403 if (!(wxstyle & wxNO_BORDER) && !(wxstyle & wxBORDER_STATIC))
4404 {
4405 GtkShadowType gtkstyle;
4406
4407 if(wxstyle & wxBORDER_RAISED)
4408 gtkstyle = GTK_SHADOW_OUT;
4409 else if ((wxstyle & wxBORDER_SUNKEN) || (wxstyle & wxBORDER_THEME))
4410 gtkstyle = GTK_SHADOW_IN;
4411 #if 0
4412 // Now obsolete
4413 else if (wxstyle & wxBORDER_DOUBLE)
4414 gtkstyle = GTK_SHADOW_ETCHED_IN;
4415 #endif
4416 else //default
4417 gtkstyle = GTK_SHADOW_IN;
4418
4419 gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(w),
4420 gtkstyle );
4421 }
4422 }
4423
4424 void wxWindowGTK::SetWindowStyleFlag( long style )
4425 {
4426 // Updates the internal variable. NB: Now m_windowStyle bits carry the _new_ style values already
4427 wxWindowBase::SetWindowStyleFlag(style);
4428 }
4429
4430 // Find the wxWindow at the current mouse position, also returning the mouse
4431 // position.
4432 wxWindow* wxFindWindowAtPointer(wxPoint& pt)
4433 {
4434 pt = wxGetMousePosition();
4435 wxWindow* found = wxFindWindowAtPoint(pt);
4436 return found;
4437 }
4438
4439 // Get the current mouse position.
4440 wxPoint wxGetMousePosition()
4441 {
4442 /* This crashes when used within wxHelpContext,
4443 so we have to use the X-specific implementation below.
4444 gint x, y;
4445 GdkModifierType *mask;
4446 (void) gdk_window_get_pointer(NULL, &x, &y, mask);
4447
4448 return wxPoint(x, y);
4449 */
4450
4451 int x, y;
4452 GdkWindow* windowAtPtr = gdk_window_at_pointer(& x, & y);
4453
4454 Display *display = windowAtPtr ? GDK_WINDOW_XDISPLAY(windowAtPtr) : GDK_DISPLAY();
4455 Window rootWindow = RootWindowOfScreen (DefaultScreenOfDisplay(display));
4456 Window rootReturn, childReturn;
4457 int rootX, rootY, winX, winY;
4458 unsigned int maskReturn;
4459
4460 XQueryPointer (display,
4461 rootWindow,
4462 &rootReturn,
4463 &childReturn,
4464 &rootX, &rootY, &winX, &winY, &maskReturn);
4465 return wxPoint(rootX, rootY);
4466
4467 }
4468
4469 GdkWindow* wxWindowGTK::GTKGetDrawingWindow() const
4470 {
4471 GdkWindow* window = NULL;
4472 if (m_wxwindow)
4473 window = gtk_widget_get_window(m_wxwindow);
4474 return window;
4475 }
4476
4477 // ----------------------------------------------------------------------------
4478 // freeze/thaw
4479 // ----------------------------------------------------------------------------
4480
4481 extern "C"
4482 {
4483
4484 // this is called if we attempted to freeze unrealized widget when it finally
4485 // is realized (and so can be frozen):
4486 static void wx_frozen_widget_realize(GtkWidget* w, wxWindowGTK* win)
4487 {
4488 wxASSERT( w && gtk_widget_get_has_window(w) );
4489 wxASSERT( gtk_widget_get_realized(w) );
4490
4491 g_signal_handlers_disconnect_by_func
4492 (
4493 w,
4494 (void*)wx_frozen_widget_realize,
4495 win
4496 );
4497
4498 GdkWindow* window;
4499 if (w == win->m_wxwindow)
4500 window = win->GTKGetDrawingWindow();
4501 else
4502 window = gtk_widget_get_window(w);
4503 gdk_window_freeze_updates(window);
4504 }
4505
4506 } // extern "C"
4507
4508 void wxWindowGTK::GTKFreezeWidget(GtkWidget *w)
4509 {
4510 if ( !w || !gtk_widget_get_has_window(w) )
4511 return; // window-less widget, cannot be frozen
4512
4513 GdkWindow* window = gtk_widget_get_window(w);
4514 if (window == NULL)
4515 {
4516 // we can't thaw unrealized widgets because they don't have GdkWindow,
4517 // so set it up to be done immediately after realization:
4518 g_signal_connect_after
4519 (
4520 w,
4521 "realize",
4522 G_CALLBACK(wx_frozen_widget_realize),
4523 this
4524 );
4525 return;
4526 }
4527
4528 if (w == m_wxwindow)
4529 window = GTKGetDrawingWindow();
4530 gdk_window_freeze_updates(window);
4531 }
4532
4533 void wxWindowGTK::GTKThawWidget(GtkWidget *w)
4534 {
4535 if ( !w || !gtk_widget_get_has_window(w) )
4536 return; // window-less widget, cannot be frozen
4537
4538 GdkWindow* window = gtk_widget_get_window(w);
4539 if (window == NULL)
4540 {
4541 // the widget wasn't realized yet, no need to thaw
4542 g_signal_handlers_disconnect_by_func
4543 (
4544 w,
4545 (void*)wx_frozen_widget_realize,
4546 this
4547 );
4548 return;
4549 }
4550
4551 if (w == m_wxwindow)
4552 window = GTKGetDrawingWindow();
4553 gdk_window_thaw_updates(window);
4554 }
4555
4556 void wxWindowGTK::DoFreeze()
4557 {
4558 GTKFreezeWidget(m_widget);
4559 if ( m_wxwindow && m_widget != m_wxwindow )
4560 GTKFreezeWidget(m_wxwindow);
4561 }
4562
4563 void wxWindowGTK::DoThaw()
4564 {
4565 GTKThawWidget(m_widget);
4566 if ( m_wxwindow && m_widget != m_wxwindow )
4567 GTKThawWidget(m_wxwindow);
4568 }
wxWidgets (Impactor)