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Small code cleanup in wxWindowGTK::PostCreation().
[wxWidgets.git] / src / gtk / window.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/gtk/window.cpp
3 // Purpose: wxWindowGTK implementation
4 // Author: Robert Roebling
5 // Id: $Id$
6 // Copyright: (c) 1998 Robert Roebling, Julian Smart
7 // Licence: wxWindows licence
8 /////////////////////////////////////////////////////////////////////////////
9
10 // For compilers that support precompilation, includes "wx.h".
11 #include "wx/wxprec.h"
12
13 #ifdef __VMS
14 #define XWarpPointer XWARPPOINTER
15 #endif
16
17 #include "wx/window.h"
18
19 #ifndef WX_PRECOMP
20 #include "wx/log.h"
21 #include "wx/app.h"
22 #include "wx/toplevel.h"
23 #include "wx/dcclient.h"
24 #include "wx/menu.h"
25 #include "wx/settings.h"
26 #include "wx/msgdlg.h"
27 #include "wx/math.h"
28 #endif
29
30 #include "wx/dnd.h"
31 #include "wx/tooltip.h"
32 #include "wx/caret.h"
33 #include "wx/fontutil.h"
34 #include "wx/sysopt.h"
35
36 #include <ctype.h>
37
38 #include "wx/gtk/private.h"
39 #include "wx/gtk/private/win_gtk.h"
40 #include <gdk/gdkkeysyms.h>
41 #include <gdk/gdkx.h>
42
43 #if !GTK_CHECK_VERSION(2,10,0)
44 // GTK+ can reliably detect Meta key state only since 2.10 when
45 // GDK_META_MASK was introduced -- there wasn't any way to detect it
46 // in older versions. wxGTK used GDK_MOD2_MASK for this purpose, but
47 // GDK_MOD2_MASK is documented as:
48 //
49 // the fifth modifier key (it depends on the modifier mapping of the X
50 // server which key is interpreted as this modifier)
51 //
52 // In other words, it isn't guaranteed to map to Meta. This is a real
53 // problem: it is common to map NumLock to it (in fact, it's an exception
54 // if the X server _doesn't_ use it for NumLock). So the old code caused
55 // wxKeyEvent::MetaDown() to always return true as long as NumLock was on
56 // on many systems, which broke all applications using
57 // wxKeyEvent::GetModifiers() to check modifiers state (see e.g. here:
58 // http://tinyurl.com/56lsk2).
59 //
60 // Because of this, it's better to not detect Meta key state at all than
61 // to detect it incorrectly. Hence the following #define, which causes
62 // m_metaDown to be always set to false.
63 #define GDK_META_MASK 0
64 #endif
65
66 //-----------------------------------------------------------------------------
67 // documentation on internals
68 //-----------------------------------------------------------------------------
69
70 /*
71 I have been asked several times about writing some documentation about
72 the GTK port of wxWidgets, especially its internal structures. Obviously,
73 you cannot understand wxGTK without knowing a little about the GTK, but
74 some more information about what the wxWindow, which is the base class
75 for all other window classes, does seems required as well.
76
77 I)
78
79 What does wxWindow do? It contains the common interface for the following
80 jobs of its descendants:
81
82 1) Define the rudimentary behaviour common to all window classes, such as
83 resizing, intercepting user input (so as to make it possible to use these
84 events for special purposes in a derived class), window names etc.
85
86 2) Provide the possibility to contain and manage children, if the derived
87 class is allowed to contain children, which holds true for those window
88 classes which do not display a native GTK widget. To name them, these
89 classes are wxPanel, wxScrolledWindow, wxDialog, wxFrame. The MDI frame-
90 work classes are a special case and are handled a bit differently from
91 the rest. The same holds true for the wxNotebook class.
92
93 3) Provide the possibility to draw into a client area of a window. This,
94 too, only holds true for classes that do not display a native GTK widget
95 as above.
96
97 4) Provide the entire mechanism for scrolling widgets. This actual inter-
98 face for this is usually in wxScrolledWindow, but the GTK implementation
99 is in this class.
100
101 5) A multitude of helper or extra methods for special purposes, such as
102 Drag'n'Drop, managing validators etc.
103
104 6) Display a border (sunken, raised, simple or none).
105
106 Normally one might expect, that one wxWidgets window would always correspond
107 to one GTK widget. Under GTK, there is no such all-round widget that has all
108 the functionality. Moreover, the GTK defines a client area as a different
109 widget from the actual widget you are handling. Last but not least some
110 special classes (e.g. wxFrame) handle different categories of widgets and
111 still have the possibility to draw something in the client area.
112 It was therefore required to write a special purpose GTK widget, that would
113 represent a client area in the sense of wxWidgets capable to do the jobs
114 2), 3) and 4). I have written this class and it resides in win_gtk.c of
115 this directory.
116
117 All windows must have a widget, with which they interact with other under-
118 lying GTK widgets. It is this widget, e.g. that has to be resized etc and
119 the wxWindow class has a member variable called m_widget which holds a
120 pointer to this widget. When the window class represents a GTK native widget,
121 this is (in most cases) the only GTK widget the class manages. E.g. the
122 wxStaticText class handles only a GtkLabel widget a pointer to which you
123 can find in m_widget (defined in wxWindow)
124
125 When the class has a client area for drawing into and for containing children
126 it has to handle the client area widget (of the type wxPizza, defined in
127 win_gtk.cpp), but there could be any number of widgets, handled by a class.
128 The common rule for all windows is only, that the widget that interacts with
129 the rest of GTK must be referenced in m_widget and all other widgets must be
130 children of this widget on the GTK level. The top-most widget, which also
131 represents the client area, must be in the m_wxwindow field and must be of
132 the type wxPizza.
133
134 As I said, the window classes that display a GTK native widget only have
135 one widget, so in the case of e.g. the wxButton class m_widget holds a
136 pointer to a GtkButton widget. But windows with client areas (for drawing
137 and children) have a m_widget field that is a pointer to a GtkScrolled-
138 Window and a m_wxwindow field that is pointer to a wxPizza and this
139 one is (in the GTK sense) a child of the GtkScrolledWindow.
140
141 If the m_wxwindow field is set, then all input to this widget is inter-
142 cepted and sent to the wxWidgets class. If not, all input to the widget
143 that gets pointed to by m_widget gets intercepted and sent to the class.
144
145 II)
146
147 The design of scrolling in wxWidgets is markedly different from that offered
148 by the GTK itself and therefore we cannot simply take it as it is. In GTK,
149 clicking on a scrollbar belonging to scrolled window will inevitably move
150 the window. In wxWidgets, the scrollbar will only emit an event, send this
151 to (normally) a wxScrolledWindow and that class will call ScrollWindow()
152 which actually moves the window and its sub-windows. Note that wxPizza
153 memorizes how much it has been scrolled but that wxWidgets forgets this
154 so that the two coordinates systems have to be kept in synch. This is done
155 in various places using the pizza->m_scroll_x and pizza->m_scroll_y values.
156
157 III)
158
159 Singularly the most broken code in GTK is the code that is supposed to
160 inform subwindows (child windows) about new positions. Very often, duplicate
161 events are sent without changes in size or position, equally often no
162 events are sent at all (All this is due to a bug in the GtkContainer code
163 which got fixed in GTK 1.2.6). For that reason, wxGTK completely ignores
164 GTK's own system and it simply waits for size events for toplevel windows
165 and then iterates down the respective size events to all window. This has
166 the disadvantage that windows might get size events before the GTK widget
167 actually has the reported size. This doesn't normally pose any problem, but
168 the OpenGL drawing routines rely on correct behaviour. Therefore, I have
169 added the m_nativeSizeEvents flag, which is true only for the OpenGL canvas,
170 i.e. the wxGLCanvas will emit a size event, when (and not before) the X11
171 window that is used for OpenGL output really has that size (as reported by
172 GTK).
173
174 IV)
175
176 If someone at some point of time feels the immense desire to have a look at,
177 change or attempt to optimise the Refresh() logic, this person will need an
178 intimate understanding of what "draw" and "expose" events are and what
179 they are used for, in particular when used in connection with GTK's
180 own windowless widgets. Beware.
181
182 V)
183
184 Cursors, too, have been a constant source of pleasure. The main difficulty
185 is that a GdkWindow inherits a cursor if the programmer sets a new cursor
186 for the parent. To prevent this from doing too much harm, I use idle time
187 to set the cursor over and over again, starting from the toplevel windows
188 and ending with the youngest generation (speaking of parent and child windows).
189 Also don't forget that cursors (like much else) are connected to GdkWindows,
190 not GtkWidgets and that the "window" field of a GtkWidget might very well
191 point to the GdkWindow of the parent widget (-> "window-less widget") and
192 that the two obviously have very different meanings.
193
194 */
195
196 //-----------------------------------------------------------------------------
197 // data
198 //-----------------------------------------------------------------------------
199
200 // Don't allow event propagation during drag
201 bool g_blockEventsOnDrag;
202 // Don't allow mouse event propagation during scroll
203 bool g_blockEventsOnScroll;
204 extern wxCursor g_globalCursor;
205
206 // mouse capture state: the window which has it and if the mouse is currently
207 // inside it
208 static wxWindowGTK *g_captureWindow = NULL;
209 static bool g_captureWindowHasMouse = false;
210
211 // The window that currently has focus:
212 static wxWindowGTK *gs_currentFocus = NULL;
213 // The window that is scheduled to get focus in the next event loop iteration
214 // or NULL if there's no pending focus change:
215 static wxWindowGTK *gs_pendingFocus = NULL;
216
217 // the window that has deferred focus-out event pending, if any (see
218 // GTKAddDeferredFocusOut() for details)
219 static wxWindowGTK *gs_deferredFocusOut = NULL;
220
221 // global variables because GTK+ DnD want to have the
222 // mouse event that caused it
223 GdkEvent *g_lastMouseEvent = NULL;
224 int g_lastButtonNumber = 0;
225
226 //-----------------------------------------------------------------------------
227 // debug
228 //-----------------------------------------------------------------------------
229
230 // the trace mask used for the focus debugging messages
231 #define TRACE_FOCUS wxT("focus")
232
233 //-----------------------------------------------------------------------------
234 // missing gdk functions
235 //-----------------------------------------------------------------------------
236
237 void
238 gdk_window_warp_pointer (GdkWindow *window,
239 gint x,
240 gint y)
241 {
242 if (!window)
243 window = gdk_get_default_root_window();
244
245 if (!GDK_WINDOW_DESTROYED(window))
246 {
247 XWarpPointer (GDK_WINDOW_XDISPLAY(window),
248 None, /* not source window -> move from anywhere */
249 GDK_WINDOW_XID(window), /* dest window */
250 0, 0, 0, 0, /* not source window -> move from anywhere */
251 x, y );
252 }
253 }
254
255
256 //-----------------------------------------------------------------------------
257 // "size_request" of m_widget
258 //-----------------------------------------------------------------------------
259
260 extern "C" {
261 static void
262 wxgtk_window_size_request_callback(GtkWidget * WXUNUSED(widget),
263 GtkRequisition *requisition,
264 wxWindow * win)
265 {
266 int w, h;
267 win->GetSize( &w, &h );
268 if (w < 2)
269 w = 2;
270 if (h < 2)
271 h = 2;
272
273 requisition->height = h;
274 requisition->width = w;
275 }
276 }
277
278 //-----------------------------------------------------------------------------
279 // "expose_event" of m_wxwindow
280 //-----------------------------------------------------------------------------
281
282 extern "C" {
283 static gboolean
284 gtk_window_expose_callback( GtkWidget* widget,
285 GdkEventExpose *gdk_event,
286 wxWindow *win )
287 {
288 if (gdk_event->window == widget->window)
289 {
290 win->GetUpdateRegion() = wxRegion( gdk_event->region );
291 win->GtkSendPaintEvents();
292 }
293 // Let parent window draw window-less widgets
294 return FALSE;
295 }
296 }
297
298 #ifndef __WXUNIVERSAL__
299 //-----------------------------------------------------------------------------
300 // "expose_event" from m_wxwindow->parent, for drawing border
301 //-----------------------------------------------------------------------------
302
303 extern "C" {
304 static gboolean
305 expose_event_border(GtkWidget* widget, GdkEventExpose* gdk_event, wxWindow* win)
306 {
307 if (gdk_event->window != widget->window)
308 return false;
309
310 const GtkAllocation& alloc = win->m_wxwindow->allocation;
311 const int x = alloc.x;
312 const int y = alloc.y;
313 const int w = alloc.width;
314 const int h = alloc.height;
315
316 if (w <= 0 || h <= 0)
317 return false;
318
319 if (win->HasFlag(wxBORDER_SIMPLE))
320 {
321 gdk_draw_rectangle(gdk_event->window,
322 widget->style->black_gc, false, x, y, w - 1, h - 1);
323 }
324 else
325 {
326 GtkShadowType shadow = GTK_SHADOW_IN;
327 if (win->HasFlag(wxBORDER_RAISED))
328 shadow = GTK_SHADOW_OUT;
329
330 // Style detail to use
331 const char* detail;
332 if (win->m_widget == win->m_wxwindow)
333 // for non-scrollable wxWindows
334 detail = "entry";
335 else
336 // for scrollable ones
337 detail = "viewport";
338
339 gtk_paint_shadow(
340 win->m_wxwindow->style, gdk_event->window, GTK_STATE_NORMAL,
341 shadow, NULL, wxGTKPrivate::GetEntryWidget(), detail, x, y, w, h);
342 }
343 return false;
344 }
345 }
346
347 //-----------------------------------------------------------------------------
348 // "parent_set" from m_wxwindow
349 //-----------------------------------------------------------------------------
350
351 extern "C" {
352 static void
353 parent_set(GtkWidget* widget, GtkObject* old_parent, wxWindow* win)
354 {
355 if (old_parent)
356 {
357 g_signal_handlers_disconnect_by_func(
358 old_parent, (void*)expose_event_border, win);
359 }
360 if (widget->parent)
361 {
362 g_signal_connect_after(widget->parent, "expose_event",
363 G_CALLBACK(expose_event_border), win);
364 }
365 }
366 }
367 #endif // !__WXUNIVERSAL__
368
369 //-----------------------------------------------------------------------------
370 // "key_press_event" from any window
371 //-----------------------------------------------------------------------------
372
373 // These are used when transforming Ctrl-alpha to ascii values 1-26
374 inline bool wxIsLowerChar(int code)
375 {
376 return (code >= 'a' && code <= 'z' );
377 }
378
379 inline bool wxIsUpperChar(int code)
380 {
381 return (code >= 'A' && code <= 'Z' );
382 }
383
384
385 // set WXTRACE to this to see the key event codes on the console
386 #define TRACE_KEYS wxT("keyevent")
387
388 // translates an X key symbol to WXK_XXX value
389 //
390 // if isChar is true it means that the value returned will be used for EVT_CHAR
391 // event and then we choose the logical WXK_XXX, i.e. '/' for GDK_KP_Divide,
392 // for example, while if it is false it means that the value is going to be
393 // used for KEY_DOWN/UP events and then we translate GDK_KP_Divide to
394 // WXK_NUMPAD_DIVIDE
395 static long wxTranslateKeySymToWXKey(KeySym keysym, bool isChar)
396 {
397 long key_code;
398
399 switch ( keysym )
400 {
401 // Shift, Control and Alt don't generate the CHAR events at all
402 case GDK_Shift_L:
403 case GDK_Shift_R:
404 key_code = isChar ? 0 : WXK_SHIFT;
405 break;
406 case GDK_Control_L:
407 case GDK_Control_R:
408 key_code = isChar ? 0 : WXK_CONTROL;
409 break;
410 case GDK_Meta_L:
411 case GDK_Meta_R:
412 case GDK_Alt_L:
413 case GDK_Alt_R:
414 case GDK_Super_L:
415 case GDK_Super_R:
416 key_code = isChar ? 0 : WXK_ALT;
417 break;
418
419 // neither do the toggle modifies
420 case GDK_Scroll_Lock:
421 key_code = isChar ? 0 : WXK_SCROLL;
422 break;
423
424 case GDK_Caps_Lock:
425 key_code = isChar ? 0 : WXK_CAPITAL;
426 break;
427
428 case GDK_Num_Lock:
429 key_code = isChar ? 0 : WXK_NUMLOCK;
430 break;
431
432
433 // various other special keys
434 case GDK_Menu:
435 key_code = WXK_MENU;
436 break;
437
438 case GDK_Help:
439 key_code = WXK_HELP;
440 break;
441
442 case GDK_BackSpace:
443 key_code = WXK_BACK;
444 break;
445
446 case GDK_ISO_Left_Tab:
447 case GDK_Tab:
448 key_code = WXK_TAB;
449 break;
450
451 case GDK_Linefeed:
452 case GDK_Return:
453 key_code = WXK_RETURN;
454 break;
455
456 case GDK_Clear:
457 key_code = WXK_CLEAR;
458 break;
459
460 case GDK_Pause:
461 key_code = WXK_PAUSE;
462 break;
463
464 case GDK_Select:
465 key_code = WXK_SELECT;
466 break;
467
468 case GDK_Print:
469 key_code = WXK_PRINT;
470 break;
471
472 case GDK_Execute:
473 key_code = WXK_EXECUTE;
474 break;
475
476 case GDK_Escape:
477 key_code = WXK_ESCAPE;
478 break;
479
480 // cursor and other extended keyboard keys
481 case GDK_Delete:
482 key_code = WXK_DELETE;
483 break;
484
485 case GDK_Home:
486 key_code = WXK_HOME;
487 break;
488
489 case GDK_Left:
490 key_code = WXK_LEFT;
491 break;
492
493 case GDK_Up:
494 key_code = WXK_UP;
495 break;
496
497 case GDK_Right:
498 key_code = WXK_RIGHT;
499 break;
500
501 case GDK_Down:
502 key_code = WXK_DOWN;
503 break;
504
505 case GDK_Prior: // == GDK_Page_Up
506 key_code = WXK_PAGEUP;
507 break;
508
509 case GDK_Next: // == GDK_Page_Down
510 key_code = WXK_PAGEDOWN;
511 break;
512
513 case GDK_End:
514 key_code = WXK_END;
515 break;
516
517 case GDK_Begin:
518 key_code = WXK_HOME;
519 break;
520
521 case GDK_Insert:
522 key_code = WXK_INSERT;
523 break;
524
525
526 // numpad keys
527 case GDK_KP_0:
528 case GDK_KP_1:
529 case GDK_KP_2:
530 case GDK_KP_3:
531 case GDK_KP_4:
532 case GDK_KP_5:
533 case GDK_KP_6:
534 case GDK_KP_7:
535 case GDK_KP_8:
536 case GDK_KP_9:
537 key_code = (isChar ? '0' : int(WXK_NUMPAD0)) + keysym - GDK_KP_0;
538 break;
539
540 case GDK_KP_Space:
541 key_code = isChar ? ' ' : int(WXK_NUMPAD_SPACE);
542 break;
543
544 case GDK_KP_Tab:
545 key_code = isChar ? WXK_TAB : WXK_NUMPAD_TAB;
546 break;
547
548 case GDK_KP_Enter:
549 key_code = isChar ? WXK_RETURN : WXK_NUMPAD_ENTER;
550 break;
551
552 case GDK_KP_F1:
553 key_code = isChar ? WXK_F1 : WXK_NUMPAD_F1;
554 break;
555
556 case GDK_KP_F2:
557 key_code = isChar ? WXK_F2 : WXK_NUMPAD_F2;
558 break;
559
560 case GDK_KP_F3:
561 key_code = isChar ? WXK_F3 : WXK_NUMPAD_F3;
562 break;
563
564 case GDK_KP_F4:
565 key_code = isChar ? WXK_F4 : WXK_NUMPAD_F4;
566 break;
567
568 case GDK_KP_Home:
569 key_code = isChar ? WXK_HOME : WXK_NUMPAD_HOME;
570 break;
571
572 case GDK_KP_Left:
573 key_code = isChar ? WXK_LEFT : WXK_NUMPAD_LEFT;
574 break;
575
576 case GDK_KP_Up:
577 key_code = isChar ? WXK_UP : WXK_NUMPAD_UP;
578 break;
579
580 case GDK_KP_Right:
581 key_code = isChar ? WXK_RIGHT : WXK_NUMPAD_RIGHT;
582 break;
583
584 case GDK_KP_Down:
585 key_code = isChar ? WXK_DOWN : WXK_NUMPAD_DOWN;
586 break;
587
588 case GDK_KP_Prior: // == GDK_KP_Page_Up
589 key_code = isChar ? WXK_PAGEUP : WXK_NUMPAD_PAGEUP;
590 break;
591
592 case GDK_KP_Next: // == GDK_KP_Page_Down
593 key_code = isChar ? WXK_PAGEDOWN : WXK_NUMPAD_PAGEDOWN;
594 break;
595
596 case GDK_KP_End:
597 key_code = isChar ? WXK_END : WXK_NUMPAD_END;
598 break;
599
600 case GDK_KP_Begin:
601 key_code = isChar ? WXK_HOME : WXK_NUMPAD_BEGIN;
602 break;
603
604 case GDK_KP_Insert:
605 key_code = isChar ? WXK_INSERT : WXK_NUMPAD_INSERT;
606 break;
607
608 case GDK_KP_Delete:
609 key_code = isChar ? WXK_DELETE : WXK_NUMPAD_DELETE;
610 break;
611
612 case GDK_KP_Equal:
613 key_code = isChar ? '=' : int(WXK_NUMPAD_EQUAL);
614 break;
615
616 case GDK_KP_Multiply:
617 key_code = isChar ? '*' : int(WXK_NUMPAD_MULTIPLY);
618 break;
619
620 case GDK_KP_Add:
621 key_code = isChar ? '+' : int(WXK_NUMPAD_ADD);
622 break;
623
624 case GDK_KP_Separator:
625 // FIXME: what is this?
626 key_code = isChar ? '.' : int(WXK_NUMPAD_SEPARATOR);
627 break;
628
629 case GDK_KP_Subtract:
630 key_code = isChar ? '-' : int(WXK_NUMPAD_SUBTRACT);
631 break;
632
633 case GDK_KP_Decimal:
634 key_code = isChar ? '.' : int(WXK_NUMPAD_DECIMAL);
635 break;
636
637 case GDK_KP_Divide:
638 key_code = isChar ? '/' : int(WXK_NUMPAD_DIVIDE);
639 break;
640
641
642 // function keys
643 case GDK_F1:
644 case GDK_F2:
645 case GDK_F3:
646 case GDK_F4:
647 case GDK_F5:
648 case GDK_F6:
649 case GDK_F7:
650 case GDK_F8:
651 case GDK_F9:
652 case GDK_F10:
653 case GDK_F11:
654 case GDK_F12:
655 key_code = WXK_F1 + keysym - GDK_F1;
656 break;
657
658 default:
659 key_code = 0;
660 }
661
662 return key_code;
663 }
664
665 static inline bool wxIsAsciiKeysym(KeySym ks)
666 {
667 return ks < 256;
668 }
669
670 static void wxFillOtherKeyEventFields(wxKeyEvent& event,
671 wxWindowGTK *win,
672 GdkEventKey *gdk_event)
673 {
674 int x = 0;
675 int y = 0;
676 GdkModifierType state;
677 if (gdk_event->window)
678 gdk_window_get_pointer(gdk_event->window, &x, &y, &state);
679
680 event.SetTimestamp( gdk_event->time );
681 event.SetId(win->GetId());
682 event.m_shiftDown = (gdk_event->state & GDK_SHIFT_MASK) != 0;
683 event.m_controlDown = (gdk_event->state & GDK_CONTROL_MASK) != 0;
684 event.m_altDown = (gdk_event->state & GDK_MOD1_MASK) != 0;
685 event.m_metaDown = (gdk_event->state & GDK_META_MASK) != 0;
686 event.m_rawCode = (wxUint32) gdk_event->keyval;
687 event.m_rawFlags = 0;
688 #if wxUSE_UNICODE
689 event.m_uniChar = gdk_keyval_to_unicode(gdk_event->keyval);
690 #endif
691 wxGetMousePosition( &x, &y );
692 win->ScreenToClient( &x, &y );
693 event.m_x = x;
694 event.m_y = y;
695 event.SetEventObject( win );
696 }
697
698
699 static bool
700 wxTranslateGTKKeyEventToWx(wxKeyEvent& event,
701 wxWindowGTK *win,
702 GdkEventKey *gdk_event)
703 {
704 // VZ: it seems that GDK_KEY_RELEASE event doesn't set event->string
705 // but only event->keyval which is quite useless to us, so remember
706 // the last character from GDK_KEY_PRESS and reuse it as last resort
707 //
708 // NB: should be MT-safe as we're always called from the main thread only
709 static struct
710 {
711 KeySym keysym;
712 long keycode;
713 } s_lastKeyPress = { 0, 0 };
714
715 KeySym keysym = gdk_event->keyval;
716
717 wxLogTrace(TRACE_KEYS, wxT("Key %s event: keysym = %ld"),
718 event.GetEventType() == wxEVT_KEY_UP ? wxT("release")
719 : wxT("press"),
720 keysym);
721
722 long key_code = wxTranslateKeySymToWXKey(keysym, false /* !isChar */);
723
724 if ( !key_code )
725 {
726 // do we have the translation or is it a plain ASCII character?
727 if ( (gdk_event->length == 1) || wxIsAsciiKeysym(keysym) )
728 {
729 // we should use keysym if it is ASCII as X does some translations
730 // like "I pressed while Control is down" => "Ctrl-I" == "TAB"
731 // which we don't want here (but which we do use for OnChar())
732 if ( !wxIsAsciiKeysym(keysym) )
733 {
734 keysym = (KeySym)gdk_event->string[0];
735 }
736
737 // we want to always get the same key code when the same key is
738 // pressed regardless of the state of the modifiers, i.e. on a
739 // standard US keyboard pressing '5' or '%' ('5' key with
740 // Shift) should result in the same key code in OnKeyDown():
741 // '5' (although OnChar() will get either '5' or '%').
742 //
743 // to do it we first translate keysym to keycode (== scan code)
744 // and then back but always using the lower register
745 Display *dpy = (Display *)wxGetDisplay();
746 KeyCode keycode = XKeysymToKeycode(dpy, keysym);
747
748 wxLogTrace(TRACE_KEYS, wxT("\t-> keycode %d"), keycode);
749
750 KeySym keysymNormalized = XKeycodeToKeysym(dpy, keycode, 0);
751
752 // use the normalized, i.e. lower register, keysym if we've
753 // got one
754 key_code = keysymNormalized ? keysymNormalized : keysym;
755
756 // as explained above, we want to have lower register key codes
757 // normally but for the letter keys we want to have the upper ones
758 //
759 // NB: don't use XConvertCase() here, we want to do it for letters
760 // only
761 key_code = toupper(key_code);
762 }
763 else // non ASCII key, what to do?
764 {
765 // by default, ignore it
766 key_code = 0;
767
768 // but if we have cached information from the last KEY_PRESS
769 if ( gdk_event->type == GDK_KEY_RELEASE )
770 {
771 // then reuse it
772 if ( keysym == s_lastKeyPress.keysym )
773 {
774 key_code = s_lastKeyPress.keycode;
775 }
776 }
777 }
778
779 if ( gdk_event->type == GDK_KEY_PRESS )
780 {
781 // remember it to be reused for KEY_UP event later
782 s_lastKeyPress.keysym = keysym;
783 s_lastKeyPress.keycode = key_code;
784 }
785 }
786
787 wxLogTrace(TRACE_KEYS, wxT("\t-> wxKeyCode %ld"), key_code);
788
789 // sending unknown key events doesn't really make sense
790 if ( !key_code )
791 return false;
792
793 // now fill all the other fields
794 wxFillOtherKeyEventFields(event, win, gdk_event);
795
796 event.m_keyCode = key_code;
797 #if wxUSE_UNICODE
798 if ( gdk_event->type == GDK_KEY_PRESS || gdk_event->type == GDK_KEY_RELEASE )
799 {
800 event.m_uniChar = key_code;
801 }
802 #endif
803
804 return true;
805 }
806
807
808 struct wxGtkIMData
809 {
810 GtkIMContext *context;
811 GdkEventKey *lastKeyEvent;
812
813 wxGtkIMData()
814 {
815 context = gtk_im_multicontext_new();
816 lastKeyEvent = NULL;
817 }
818 ~wxGtkIMData()
819 {
820 g_object_unref (context);
821 }
822 };
823
824 extern "C" {
825 static gboolean
826 gtk_window_key_press_callback( GtkWidget *WXUNUSED(widget),
827 GdkEventKey *gdk_event,
828 wxWindow *win )
829 {
830 if (!win->m_hasVMT)
831 return FALSE;
832 if (g_blockEventsOnDrag)
833 return FALSE;
834
835 wxKeyEvent event( wxEVT_KEY_DOWN );
836 bool ret = false;
837 bool return_after_IM = false;
838
839 if( wxTranslateGTKKeyEventToWx(event, win, gdk_event) )
840 {
841 // Emit KEY_DOWN event
842 ret = win->HandleWindowEvent( event );
843 }
844 else
845 {
846 // Return after IM processing as we cannot do
847 // anything with it anyhow.
848 return_after_IM = true;
849 }
850
851 if ((!ret) && (win->m_imData != NULL))
852 {
853 // We should let GTK+ IM filter key event first. According to GTK+ 2.0 API
854 // docs, if IM filter returns true, no further processing should be done.
855 // we should send the key_down event anyway.
856 bool intercepted_by_IM = gtk_im_context_filter_keypress(win->m_imData->context, gdk_event);
857 win->m_imData->lastKeyEvent = NULL;
858 if (intercepted_by_IM)
859 {
860 wxLogTrace(TRACE_KEYS, wxT("Key event intercepted by IM"));
861 return TRUE;
862 }
863 }
864
865 if (return_after_IM)
866 return FALSE;
867
868 #if wxUSE_ACCEL
869 if (!ret)
870 {
871 wxWindowGTK *ancestor = win;
872 while (ancestor)
873 {
874 int command = ancestor->GetAcceleratorTable()->GetCommand( event );
875 if (command != -1)
876 {
877 wxCommandEvent menu_event( wxEVT_COMMAND_MENU_SELECTED, command );
878 ret = ancestor->HandleWindowEvent( menu_event );
879
880 if ( !ret )
881 {
882 // if the accelerator wasn't handled as menu event, try
883 // it as button click (for compatibility with other
884 // platforms):
885 wxCommandEvent button_event( wxEVT_COMMAND_BUTTON_CLICKED, command );
886 ret = ancestor->HandleWindowEvent( button_event );
887 }
888
889 break;
890 }
891 if (ancestor->IsTopLevel())
892 break;
893 ancestor = ancestor->GetParent();
894 }
895 }
896 #endif // wxUSE_ACCEL
897
898 // Only send wxEVT_CHAR event if not processed yet. Thus, ALT-x
899 // will only be sent if it is not in an accelerator table.
900 if (!ret)
901 {
902 long key_code;
903 KeySym keysym = gdk_event->keyval;
904 // Find key code for EVT_CHAR and EVT_CHAR_HOOK events
905 key_code = wxTranslateKeySymToWXKey(keysym, true /* isChar */);
906 if ( !key_code )
907 {
908 if ( wxIsAsciiKeysym(keysym) )
909 {
910 // ASCII key
911 key_code = (unsigned char)keysym;
912 }
913 // gdk_event->string is actually deprecated
914 else if ( gdk_event->length == 1 )
915 {
916 key_code = (unsigned char)gdk_event->string[0];
917 }
918 }
919
920 if ( key_code )
921 {
922 wxLogTrace(TRACE_KEYS, wxT("Char event: %ld"), key_code);
923
924 event.m_keyCode = key_code;
925
926 // To conform to the docs we need to translate Ctrl-alpha
927 // characters to values in the range 1-26.
928 if ( event.ControlDown() &&
929 ( wxIsLowerChar(key_code) || wxIsUpperChar(key_code) ))
930 {
931 if ( wxIsLowerChar(key_code) )
932 event.m_keyCode = key_code - 'a' + 1;
933 if ( wxIsUpperChar(key_code) )
934 event.m_keyCode = key_code - 'A' + 1;
935 #if wxUSE_UNICODE
936 event.m_uniChar = event.m_keyCode;
937 #endif
938 }
939
940 // Implement OnCharHook by checking ancestor top level windows
941 wxWindow *parent = win;
942 while (parent && !parent->IsTopLevel())
943 parent = parent->GetParent();
944 if (parent)
945 {
946 event.SetEventType( wxEVT_CHAR_HOOK );
947 ret = parent->HandleWindowEvent( event );
948 }
949
950 if (!ret)
951 {
952 event.SetEventType(wxEVT_CHAR);
953 ret = win->HandleWindowEvent( event );
954 }
955 }
956 }
957
958 return ret;
959 }
960 }
961
962 extern "C" {
963 static void
964 gtk_wxwindow_commit_cb (GtkIMContext * WXUNUSED(context),
965 const gchar *str,
966 wxWindow *window)
967 {
968 wxKeyEvent event( wxEVT_KEY_DOWN );
969
970 // take modifiers, cursor position, timestamp etc. from the last
971 // key_press_event that was fed into Input Method:
972 if (window->m_imData->lastKeyEvent)
973 {
974 wxFillOtherKeyEventFields(event,
975 window, window->m_imData->lastKeyEvent);
976 }
977 else
978 {
979 event.SetEventObject( window );
980 }
981
982 const wxString data(wxGTK_CONV_BACK_SYS(str));
983 if( data.empty() )
984 return;
985
986 bool ret = false;
987
988 // Implement OnCharHook by checking ancestor top level windows
989 wxWindow *parent = window;
990 while (parent && !parent->IsTopLevel())
991 parent = parent->GetParent();
992
993 for( wxString::const_iterator pstr = data.begin(); pstr != data.end(); ++pstr )
994 {
995 #if wxUSE_UNICODE
996 event.m_uniChar = *pstr;
997 // Backward compatible for ISO-8859-1
998 event.m_keyCode = *pstr < 256 ? event.m_uniChar : 0;
999 wxLogTrace(TRACE_KEYS, wxT("IM sent character '%c'"), event.m_uniChar);
1000 #else
1001 event.m_keyCode = (char)*pstr;
1002 #endif // wxUSE_UNICODE
1003
1004 // To conform to the docs we need to translate Ctrl-alpha
1005 // characters to values in the range 1-26.
1006 if ( event.ControlDown() &&
1007 ( wxIsLowerChar(*pstr) || wxIsUpperChar(*pstr) ))
1008 {
1009 if ( wxIsLowerChar(*pstr) )
1010 event.m_keyCode = *pstr - 'a' + 1;
1011 if ( wxIsUpperChar(*pstr) )
1012 event.m_keyCode = *pstr - 'A' + 1;
1013
1014 event.m_keyCode = *pstr - 'a' + 1;
1015 #if wxUSE_UNICODE
1016 event.m_uniChar = event.m_keyCode;
1017 #endif
1018 }
1019
1020 if (parent)
1021 {
1022 event.SetEventType( wxEVT_CHAR_HOOK );
1023 ret = parent->HandleWindowEvent( event );
1024 }
1025
1026 if (!ret)
1027 {
1028 event.SetEventType(wxEVT_CHAR);
1029 ret = window->HandleWindowEvent( event );
1030 }
1031 }
1032 }
1033 }
1034
1035
1036 //-----------------------------------------------------------------------------
1037 // "key_release_event" from any window
1038 //-----------------------------------------------------------------------------
1039
1040 extern "C" {
1041 static gboolean
1042 gtk_window_key_release_callback( GtkWidget * WXUNUSED(widget),
1043 GdkEventKey *gdk_event,
1044 wxWindowGTK *win )
1045 {
1046 if (!win->m_hasVMT)
1047 return FALSE;
1048
1049 if (g_blockEventsOnDrag)
1050 return FALSE;
1051
1052 wxKeyEvent event( wxEVT_KEY_UP );
1053 if ( !wxTranslateGTKKeyEventToWx(event, win, gdk_event) )
1054 {
1055 // unknown key pressed, ignore (the event would be useless anyhow)
1056 return FALSE;
1057 }
1058
1059 return win->GTKProcessEvent(event);
1060 }
1061 }
1062
1063 // ============================================================================
1064 // the mouse events
1065 // ============================================================================
1066
1067 // ----------------------------------------------------------------------------
1068 // mouse event processing helpers
1069 // ----------------------------------------------------------------------------
1070
1071 // init wxMouseEvent with the info from GdkEventXXX struct
1072 template<typename T> void InitMouseEvent(wxWindowGTK *win,
1073 wxMouseEvent& event,
1074 T *gdk_event)
1075 {
1076 event.SetTimestamp( gdk_event->time );
1077 event.m_shiftDown = (gdk_event->state & GDK_SHIFT_MASK) != 0;
1078 event.m_controlDown = (gdk_event->state & GDK_CONTROL_MASK) != 0;
1079 event.m_altDown = (gdk_event->state & GDK_MOD1_MASK) != 0;
1080 event.m_metaDown = (gdk_event->state & GDK_META_MASK) != 0;
1081 event.m_leftDown = (gdk_event->state & GDK_BUTTON1_MASK) != 0;
1082 event.m_middleDown = (gdk_event->state & GDK_BUTTON2_MASK) != 0;
1083 event.m_rightDown = (gdk_event->state & GDK_BUTTON3_MASK) != 0;
1084 event.m_aux1Down = (gdk_event->state & GDK_BUTTON4_MASK) != 0;
1085 event.m_aux2Down = (gdk_event->state & GDK_BUTTON5_MASK) != 0;
1086
1087 wxPoint pt = win->GetClientAreaOrigin();
1088 event.m_x = (wxCoord)gdk_event->x - pt.x;
1089 event.m_y = (wxCoord)gdk_event->y - pt.y;
1090
1091 if ((win->m_wxwindow) && (win->GetLayoutDirection() == wxLayout_RightToLeft))
1092 {
1093 // origin in the upper right corner
1094 int window_width = win->m_wxwindow->allocation.width;
1095 event.m_x = window_width - event.m_x;
1096 }
1097
1098 event.SetEventObject( win );
1099 event.SetId( win->GetId() );
1100 event.SetTimestamp( gdk_event->time );
1101 }
1102
1103 static void AdjustEventButtonState(wxMouseEvent& event)
1104 {
1105 // GDK reports the old state of the button for a button press event, but
1106 // for compatibility with MSW and common sense we want m_leftDown be TRUE
1107 // for a LEFT_DOWN event, not FALSE, so we will invert
1108 // left/right/middleDown for the corresponding click events
1109
1110 if ((event.GetEventType() == wxEVT_LEFT_DOWN) ||
1111 (event.GetEventType() == wxEVT_LEFT_DCLICK) ||
1112 (event.GetEventType() == wxEVT_LEFT_UP))
1113 {
1114 event.m_leftDown = !event.m_leftDown;
1115 return;
1116 }
1117
1118 if ((event.GetEventType() == wxEVT_MIDDLE_DOWN) ||
1119 (event.GetEventType() == wxEVT_MIDDLE_DCLICK) ||
1120 (event.GetEventType() == wxEVT_MIDDLE_UP))
1121 {
1122 event.m_middleDown = !event.m_middleDown;
1123 return;
1124 }
1125
1126 if ((event.GetEventType() == wxEVT_RIGHT_DOWN) ||
1127 (event.GetEventType() == wxEVT_RIGHT_DCLICK) ||
1128 (event.GetEventType() == wxEVT_RIGHT_UP))
1129 {
1130 event.m_rightDown = !event.m_rightDown;
1131 return;
1132 }
1133 }
1134
1135 // find the window to send the mouse event too
1136 static
1137 wxWindowGTK *FindWindowForMouseEvent(wxWindowGTK *win, wxCoord& x, wxCoord& y)
1138 {
1139 wxCoord xx = x;
1140 wxCoord yy = y;
1141
1142 if (win->m_wxwindow)
1143 {
1144 wxPizza* pizza = WX_PIZZA(win->m_wxwindow);
1145 xx += pizza->m_scroll_x;
1146 yy += pizza->m_scroll_y;
1147 }
1148
1149 wxWindowList::compatibility_iterator node = win->GetChildren().GetFirst();
1150 while (node)
1151 {
1152 wxWindowGTK *child = node->GetData();
1153
1154 node = node->GetNext();
1155 if (!child->IsShown())
1156 continue;
1157
1158 if (child->GTKIsTransparentForMouse())
1159 {
1160 // wxStaticBox is transparent in the box itself
1161 int xx1 = child->m_x;
1162 int yy1 = child->m_y;
1163 int xx2 = child->m_x + child->m_width;
1164 int yy2 = child->m_y + child->m_height;
1165
1166 // left
1167 if (((xx >= xx1) && (xx <= xx1+10) && (yy >= yy1) && (yy <= yy2)) ||
1168 // right
1169 ((xx >= xx2-10) && (xx <= xx2) && (yy >= yy1) && (yy <= yy2)) ||
1170 // top
1171 ((xx >= xx1) && (xx <= xx2) && (yy >= yy1) && (yy <= yy1+10)) ||
1172 // bottom
1173 ((xx >= xx1) && (xx <= xx2) && (yy >= yy2-1) && (yy <= yy2)))
1174 {
1175 win = child;
1176 x -= child->m_x;
1177 y -= child->m_y;
1178 break;
1179 }
1180
1181 }
1182 else
1183 {
1184 if ((child->m_wxwindow == NULL) &&
1185 (child->m_x <= xx) &&
1186 (child->m_y <= yy) &&
1187 (child->m_x+child->m_width >= xx) &&
1188 (child->m_y+child->m_height >= yy))
1189 {
1190 win = child;
1191 x -= child->m_x;
1192 y -= child->m_y;
1193 break;
1194 }
1195 }
1196 }
1197
1198 return win;
1199 }
1200
1201 // ----------------------------------------------------------------------------
1202 // common event handlers helpers
1203 // ----------------------------------------------------------------------------
1204
1205 bool wxWindowGTK::GTKProcessEvent(wxEvent& event) const
1206 {
1207 // nothing special at this level
1208 return HandleWindowEvent(event);
1209 }
1210
1211 bool wxWindowGTK::GTKShouldIgnoreEvent() const
1212 {
1213 return !m_hasVMT || g_blockEventsOnDrag;
1214 }
1215
1216 int wxWindowGTK::GTKCallbackCommonPrologue(GdkEventAny *event) const
1217 {
1218 if (!m_hasVMT)
1219 return FALSE;
1220 if (g_blockEventsOnDrag)
1221 return TRUE;
1222 if (g_blockEventsOnScroll)
1223 return TRUE;
1224
1225 if (!GTKIsOwnWindow(event->window))
1226 return FALSE;
1227
1228 return -1;
1229 }
1230
1231 // overloads for all GDK event types we use here: we need to have this as
1232 // GdkEventXXX can't be implicitly cast to GdkEventAny even if it, in fact,
1233 // derives from it in the sense that the structs have the same layout
1234 #define wxDEFINE_COMMON_PROLOGUE_OVERLOAD(T) \
1235 static int wxGtkCallbackCommonPrologue(T *event, wxWindowGTK *win) \
1236 { \
1237 return win->GTKCallbackCommonPrologue((GdkEventAny *)event); \
1238 }
1239
1240 wxDEFINE_COMMON_PROLOGUE_OVERLOAD(GdkEventButton)
1241 wxDEFINE_COMMON_PROLOGUE_OVERLOAD(GdkEventMotion)
1242 wxDEFINE_COMMON_PROLOGUE_OVERLOAD(GdkEventCrossing)
1243
1244 #undef wxDEFINE_COMMON_PROLOGUE_OVERLOAD
1245
1246 #define wxCOMMON_CALLBACK_PROLOGUE(event, win) \
1247 const int rc = wxGtkCallbackCommonPrologue(event, win); \
1248 if ( rc != -1 ) \
1249 return rc
1250
1251 // all event handlers must have C linkage as they're called from GTK+ C code
1252 extern "C"
1253 {
1254
1255 //-----------------------------------------------------------------------------
1256 // "button_press_event"
1257 //-----------------------------------------------------------------------------
1258
1259 static gboolean
1260 gtk_window_button_press_callback( GtkWidget *widget,
1261 GdkEventButton *gdk_event,
1262 wxWindowGTK *win )
1263 {
1264 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1265
1266 g_lastButtonNumber = gdk_event->button;
1267
1268 // GDK sends surplus button down events
1269 // before a double click event. We
1270 // need to filter these out.
1271 if ((gdk_event->type == GDK_BUTTON_PRESS) && (win->m_wxwindow))
1272 {
1273 GdkEvent *peek_event = gdk_event_peek();
1274 if (peek_event)
1275 {
1276 if ((peek_event->type == GDK_2BUTTON_PRESS) ||
1277 (peek_event->type == GDK_3BUTTON_PRESS))
1278 {
1279 gdk_event_free( peek_event );
1280 return TRUE;
1281 }
1282 else
1283 {
1284 gdk_event_free( peek_event );
1285 }
1286 }
1287 }
1288
1289 wxEventType event_type = wxEVT_NULL;
1290
1291 if ( gdk_event->type == GDK_2BUTTON_PRESS &&
1292 gdk_event->button >= 1 && gdk_event->button <= 3 )
1293 {
1294 // Reset GDK internal timestamp variables in order to disable GDK
1295 // triple click events. GDK will then next time believe no button has
1296 // been clicked just before, and send a normal button click event.
1297 GdkDisplay* display = gtk_widget_get_display (widget);
1298 display->button_click_time[1] = 0;
1299 display->button_click_time[0] = 0;
1300 }
1301
1302 if (gdk_event->button == 1)
1303 {
1304 // note that GDK generates triple click events which are not supported
1305 // by wxWidgets but still have to be passed to the app as otherwise
1306 // clicks would simply go missing
1307 switch (gdk_event->type)
1308 {
1309 // we shouldn't get triple clicks at all for GTK2 because we
1310 // suppress them artificially using the code above but we still
1311 // should map them to something for GTK1 and not just ignore them
1312 // as this would lose clicks
1313 case GDK_3BUTTON_PRESS: // we could also map this to DCLICK...
1314 case GDK_BUTTON_PRESS:
1315 event_type = wxEVT_LEFT_DOWN;
1316 break;
1317
1318 case GDK_2BUTTON_PRESS:
1319 event_type = wxEVT_LEFT_DCLICK;
1320 break;
1321
1322 default:
1323 // just to silence gcc warnings
1324 ;
1325 }
1326 }
1327 else if (gdk_event->button == 2)
1328 {
1329 switch (gdk_event->type)
1330 {
1331 case GDK_3BUTTON_PRESS:
1332 case GDK_BUTTON_PRESS:
1333 event_type = wxEVT_MIDDLE_DOWN;
1334 break;
1335
1336 case GDK_2BUTTON_PRESS:
1337 event_type = wxEVT_MIDDLE_DCLICK;
1338 break;
1339
1340 default:
1341 ;
1342 }
1343 }
1344 else if (gdk_event->button == 3)
1345 {
1346 switch (gdk_event->type)
1347 {
1348 case GDK_3BUTTON_PRESS:
1349 case GDK_BUTTON_PRESS:
1350 event_type = wxEVT_RIGHT_DOWN;
1351 break;
1352
1353 case GDK_2BUTTON_PRESS:
1354 event_type = wxEVT_RIGHT_DCLICK;
1355 break;
1356
1357 default:
1358 ;
1359 }
1360 }
1361
1362 if ( event_type == wxEVT_NULL )
1363 {
1364 // unknown mouse button or click type
1365 return FALSE;
1366 }
1367
1368 g_lastMouseEvent = (GdkEvent*) gdk_event;
1369
1370 wxMouseEvent event( event_type );
1371 InitMouseEvent( win, event, gdk_event );
1372
1373 AdjustEventButtonState(event);
1374
1375 // find the correct window to send the event to: it may be a different one
1376 // from the one which got it at GTK+ level because some controls don't have
1377 // their own X window and thus cannot get any events.
1378 if ( !g_captureWindow )
1379 win = FindWindowForMouseEvent(win, event.m_x, event.m_y);
1380
1381 // reset the event object and id in case win changed.
1382 event.SetEventObject( win );
1383 event.SetId( win->GetId() );
1384
1385 bool ret = win->GTKProcessEvent( event );
1386 g_lastMouseEvent = NULL;
1387 if ( ret )
1388 return TRUE;
1389
1390 if ((event_type == wxEVT_LEFT_DOWN) && !win->IsOfStandardClass() &&
1391 (gs_currentFocus != win) /* && win->IsFocusable() */)
1392 {
1393 win->SetFocus();
1394 }
1395
1396 if (event_type == wxEVT_RIGHT_DOWN)
1397 {
1398 // generate a "context menu" event: this is similar to right mouse
1399 // click under many GUIs except that it is generated differently
1400 // (right up under MSW, ctrl-click under Mac, right down here) and
1401 //
1402 // (a) it's a command event and so is propagated to the parent
1403 // (b) under some ports it can be generated from kbd too
1404 // (c) it uses screen coords (because of (a))
1405 wxContextMenuEvent evtCtx(
1406 wxEVT_CONTEXT_MENU,
1407 win->GetId(),
1408 win->ClientToScreen(event.GetPosition()));
1409 evtCtx.SetEventObject(win);
1410 return win->GTKProcessEvent(evtCtx);
1411 }
1412
1413 return FALSE;
1414 }
1415
1416 //-----------------------------------------------------------------------------
1417 // "button_release_event"
1418 //-----------------------------------------------------------------------------
1419
1420 static gboolean
1421 gtk_window_button_release_callback( GtkWidget *WXUNUSED(widget),
1422 GdkEventButton *gdk_event,
1423 wxWindowGTK *win )
1424 {
1425 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1426
1427 g_lastButtonNumber = 0;
1428
1429 wxEventType event_type = wxEVT_NULL;
1430
1431 switch (gdk_event->button)
1432 {
1433 case 1:
1434 event_type = wxEVT_LEFT_UP;
1435 break;
1436
1437 case 2:
1438 event_type = wxEVT_MIDDLE_UP;
1439 break;
1440
1441 case 3:
1442 event_type = wxEVT_RIGHT_UP;
1443 break;
1444
1445 default:
1446 // unknown button, don't process
1447 return FALSE;
1448 }
1449
1450 g_lastMouseEvent = (GdkEvent*) gdk_event;
1451
1452 wxMouseEvent event( event_type );
1453 InitMouseEvent( win, event, gdk_event );
1454
1455 AdjustEventButtonState(event);
1456
1457 if ( !g_captureWindow )
1458 win = FindWindowForMouseEvent(win, event.m_x, event.m_y);
1459
1460 // reset the event object and id in case win changed.
1461 event.SetEventObject( win );
1462 event.SetId( win->GetId() );
1463
1464 bool ret = win->GTKProcessEvent(event);
1465
1466 g_lastMouseEvent = NULL;
1467
1468 return ret;
1469 }
1470
1471 //-----------------------------------------------------------------------------
1472 // "motion_notify_event"
1473 //-----------------------------------------------------------------------------
1474
1475 static gboolean
1476 gtk_window_motion_notify_callback( GtkWidget * WXUNUSED(widget),
1477 GdkEventMotion *gdk_event,
1478 wxWindowGTK *win )
1479 {
1480 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1481
1482 if (gdk_event->is_hint)
1483 {
1484 int x = 0;
1485 int y = 0;
1486 GdkModifierType state;
1487 gdk_window_get_pointer(gdk_event->window, &x, &y, &state);
1488 gdk_event->x = x;
1489 gdk_event->y = y;
1490 }
1491
1492 g_lastMouseEvent = (GdkEvent*) gdk_event;
1493
1494 wxMouseEvent event( wxEVT_MOTION );
1495 InitMouseEvent(win, event, gdk_event);
1496
1497 if ( g_captureWindow )
1498 {
1499 // synthesise a mouse enter or leave event if needed
1500 GdkWindow *winUnderMouse = gdk_window_at_pointer(NULL, NULL);
1501 // This seems to be necessary and actually been added to
1502 // GDK itself in version 2.0.X
1503 gdk_flush();
1504
1505 bool hasMouse = winUnderMouse == gdk_event->window;
1506 if ( hasMouse != g_captureWindowHasMouse )
1507 {
1508 // the mouse changed window
1509 g_captureWindowHasMouse = hasMouse;
1510
1511 wxMouseEvent eventM(g_captureWindowHasMouse ? wxEVT_ENTER_WINDOW
1512 : wxEVT_LEAVE_WINDOW);
1513 InitMouseEvent(win, eventM, gdk_event);
1514 eventM.SetEventObject(win);
1515 win->GTKProcessEvent(eventM);
1516 }
1517 }
1518 else // no capture
1519 {
1520 win = FindWindowForMouseEvent(win, event.m_x, event.m_y);
1521
1522 // reset the event object and id in case win changed.
1523 event.SetEventObject( win );
1524 event.SetId( win->GetId() );
1525 }
1526
1527 if ( !g_captureWindow )
1528 {
1529 wxSetCursorEvent cevent( event.m_x, event.m_y );
1530 if (win->GTKProcessEvent( cevent ))
1531 {
1532 win->SetCursor( cevent.GetCursor() );
1533 }
1534 }
1535
1536 bool ret = win->GTKProcessEvent(event);
1537
1538 g_lastMouseEvent = NULL;
1539
1540 return ret;
1541 }
1542
1543 //-----------------------------------------------------------------------------
1544 // "scroll_event" (mouse wheel event)
1545 //-----------------------------------------------------------------------------
1546
1547 static gboolean
1548 window_scroll_event_hscrollbar(GtkWidget*, GdkEventScroll* gdk_event, wxWindow* win)
1549 {
1550 if (gdk_event->direction != GDK_SCROLL_LEFT &&
1551 gdk_event->direction != GDK_SCROLL_RIGHT)
1552 {
1553 return false;
1554 }
1555
1556 wxMouseEvent event(wxEVT_MOUSEWHEEL);
1557 InitMouseEvent(win, event, gdk_event);
1558
1559 GtkRange *range = win->m_scrollBar[wxWindow::ScrollDir_Horz];
1560 if (!range) return FALSE;
1561
1562 if (range && GTK_WIDGET_VISIBLE (range))
1563 {
1564 GtkAdjustment *adj = range->adjustment;
1565 gdouble delta = adj->step_increment * 3;
1566 if (gdk_event->direction == GDK_SCROLL_LEFT)
1567 delta = -delta;
1568
1569 gdouble new_value = CLAMP (adj->value + delta, adj->lower, adj->upper - adj->page_size);
1570
1571 gtk_adjustment_set_value (adj, new_value);
1572
1573 return TRUE;
1574 }
1575
1576 return FALSE;
1577 }
1578
1579 static gboolean
1580 window_scroll_event(GtkWidget*, GdkEventScroll* gdk_event, wxWindow* win)
1581 {
1582 if (gdk_event->direction != GDK_SCROLL_UP &&
1583 gdk_event->direction != GDK_SCROLL_DOWN)
1584 {
1585 return false;
1586 }
1587
1588 wxMouseEvent event(wxEVT_MOUSEWHEEL);
1589 InitMouseEvent(win, event, gdk_event);
1590
1591 // FIXME: Get these values from GTK or GDK
1592 event.m_linesPerAction = 3;
1593 event.m_wheelDelta = 120;
1594 if (gdk_event->direction == GDK_SCROLL_UP)
1595 event.m_wheelRotation = 120;
1596 else
1597 event.m_wheelRotation = -120;
1598
1599 if (win->GTKProcessEvent(event))
1600 return TRUE;
1601
1602 GtkRange *range = win->m_scrollBar[wxWindow::ScrollDir_Vert];
1603 if (!range) return FALSE;
1604
1605 if (range && GTK_WIDGET_VISIBLE (range))
1606 {
1607 GtkAdjustment *adj = range->adjustment;
1608 gdouble delta = adj->step_increment * 3;
1609 if (gdk_event->direction == GDK_SCROLL_UP)
1610 delta = -delta;
1611
1612 gdouble new_value = CLAMP (adj->value + delta, adj->lower, adj->upper - adj->page_size);
1613
1614 gtk_adjustment_set_value (adj, new_value);
1615
1616 return TRUE;
1617 }
1618
1619 return FALSE;
1620 }
1621
1622 //-----------------------------------------------------------------------------
1623 // "popup-menu"
1624 //-----------------------------------------------------------------------------
1625
1626 static gboolean wxgtk_window_popup_menu_callback(GtkWidget*, wxWindowGTK* win)
1627 {
1628 wxContextMenuEvent event(wxEVT_CONTEXT_MENU, win->GetId(), wxPoint(-1, -1));
1629 event.SetEventObject(win);
1630 return win->GTKProcessEvent(event);
1631 }
1632
1633 //-----------------------------------------------------------------------------
1634 // "focus_in_event"
1635 //-----------------------------------------------------------------------------
1636
1637 static gboolean
1638 gtk_window_focus_in_callback( GtkWidget * WXUNUSED(widget),
1639 GdkEventFocus *WXUNUSED(event),
1640 wxWindowGTK *win )
1641 {
1642 return win->GTKHandleFocusIn();
1643 }
1644
1645 //-----------------------------------------------------------------------------
1646 // "focus_out_event"
1647 //-----------------------------------------------------------------------------
1648
1649 static gboolean
1650 gtk_window_focus_out_callback( GtkWidget * WXUNUSED(widget),
1651 GdkEventFocus * WXUNUSED(gdk_event),
1652 wxWindowGTK *win )
1653 {
1654 return win->GTKHandleFocusOut();
1655 }
1656
1657 //-----------------------------------------------------------------------------
1658 // "focus"
1659 //-----------------------------------------------------------------------------
1660
1661 static gboolean
1662 wx_window_focus_callback(GtkWidget *widget,
1663 GtkDirectionType WXUNUSED(direction),
1664 wxWindowGTK *win)
1665 {
1666 // the default handler for focus signal in GtkScrolledWindow sets
1667 // focus to the window itself even if it doesn't accept focus, i.e. has no
1668 // GTK_CAN_FOCUS in its style -- work around this by forcibly preventing
1669 // the signal from reaching gtk_scrolled_window_focus() if we don't have
1670 // any children which might accept focus (we know we don't accept the focus
1671 // ourselves as this signal is only connected in this case)
1672 if ( win->GetChildren().empty() )
1673 g_signal_stop_emission_by_name(widget, "focus");
1674
1675 // we didn't change the focus
1676 return FALSE;
1677 }
1678
1679 //-----------------------------------------------------------------------------
1680 // "enter_notify_event"
1681 //-----------------------------------------------------------------------------
1682
1683 static gboolean
1684 gtk_window_enter_callback( GtkWidget *widget,
1685 GdkEventCrossing *gdk_event,
1686 wxWindowGTK *win )
1687 {
1688 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1689
1690 // Event was emitted after a grab
1691 if (gdk_event->mode != GDK_CROSSING_NORMAL) return FALSE;
1692
1693 int x = 0;
1694 int y = 0;
1695 GdkModifierType state = (GdkModifierType)0;
1696
1697 gdk_window_get_pointer( widget->window, &x, &y, &state );
1698
1699 wxMouseEvent event( wxEVT_ENTER_WINDOW );
1700 InitMouseEvent(win, event, gdk_event);
1701 wxPoint pt = win->GetClientAreaOrigin();
1702 event.m_x = x + pt.x;
1703 event.m_y = y + pt.y;
1704
1705 if ( !g_captureWindow )
1706 {
1707 wxSetCursorEvent cevent( event.m_x, event.m_y );
1708 if (win->GTKProcessEvent( cevent ))
1709 {
1710 win->SetCursor( cevent.GetCursor() );
1711 }
1712 }
1713
1714 return win->GTKProcessEvent(event);
1715 }
1716
1717 //-----------------------------------------------------------------------------
1718 // "leave_notify_event"
1719 //-----------------------------------------------------------------------------
1720
1721 static gboolean
1722 gtk_window_leave_callback( GtkWidget *widget,
1723 GdkEventCrossing *gdk_event,
1724 wxWindowGTK *win )
1725 {
1726 wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
1727
1728 // Event was emitted after an ungrab
1729 if (gdk_event->mode != GDK_CROSSING_NORMAL) return FALSE;
1730
1731 wxMouseEvent event( wxEVT_LEAVE_WINDOW );
1732
1733 int x = 0;
1734 int y = 0;
1735 GdkModifierType state = (GdkModifierType)0;
1736
1737 gdk_window_get_pointer( widget->window, &x, &y, &state );
1738
1739 InitMouseEvent(win, event, gdk_event);
1740
1741 return win->GTKProcessEvent(event);
1742 }
1743
1744 //-----------------------------------------------------------------------------
1745 // "value_changed" from scrollbar
1746 //-----------------------------------------------------------------------------
1747
1748 static void
1749 gtk_scrollbar_value_changed(GtkRange* range, wxWindow* win)
1750 {
1751 wxEventType eventType = win->GTKGetScrollEventType(range);
1752 if (eventType != wxEVT_NULL)
1753 {
1754 // Convert scroll event type to scrollwin event type
1755 eventType += wxEVT_SCROLLWIN_TOP - wxEVT_SCROLL_TOP;
1756
1757 // find the scrollbar which generated the event
1758 wxWindowGTK::ScrollDir dir = win->ScrollDirFromRange(range);
1759
1760 // generate the corresponding wx event
1761 const int orient = wxWindow::OrientFromScrollDir(dir);
1762 wxScrollWinEvent event(eventType, win->GetScrollPos(orient), orient);
1763 event.SetEventObject(win);
1764
1765 win->GTKProcessEvent(event);
1766 }
1767 }
1768
1769 //-----------------------------------------------------------------------------
1770 // "button_press_event" from scrollbar
1771 //-----------------------------------------------------------------------------
1772
1773 static gboolean
1774 gtk_scrollbar_button_press_event(GtkRange*, GdkEventButton*, wxWindow* win)
1775 {
1776 g_blockEventsOnScroll = true;
1777 win->m_mouseButtonDown = true;
1778
1779 return false;
1780 }
1781
1782 //-----------------------------------------------------------------------------
1783 // "event_after" from scrollbar
1784 //-----------------------------------------------------------------------------
1785
1786 static void
1787 gtk_scrollbar_event_after(GtkRange* range, GdkEvent* event, wxWindow* win)
1788 {
1789 if (event->type == GDK_BUTTON_RELEASE)
1790 {
1791 g_signal_handlers_block_by_func(range, (void*)gtk_scrollbar_event_after, win);
1792
1793 const int orient = wxWindow::OrientFromScrollDir(
1794 win->ScrollDirFromRange(range));
1795 wxScrollWinEvent evt(wxEVT_SCROLLWIN_THUMBRELEASE,
1796 win->GetScrollPos(orient), orient);
1797 evt.SetEventObject(win);
1798 win->GTKProcessEvent(evt);
1799 }
1800 }
1801
1802 //-----------------------------------------------------------------------------
1803 // "button_release_event" from scrollbar
1804 //-----------------------------------------------------------------------------
1805
1806 static gboolean
1807 gtk_scrollbar_button_release_event(GtkRange* range, GdkEventButton*, wxWindow* win)
1808 {
1809 g_blockEventsOnScroll = false;
1810 win->m_mouseButtonDown = false;
1811 // If thumb tracking
1812 if (win->m_isScrolling)
1813 {
1814 win->m_isScrolling = false;
1815 // Hook up handler to send thumb release event after this emission is finished.
1816 // To allow setting scroll position from event handler, sending event must
1817 // be deferred until after the GtkRange handler for this signal has run
1818 g_signal_handlers_unblock_by_func(range, (void*)gtk_scrollbar_event_after, win);
1819 }
1820
1821 return false;
1822 }
1823
1824 //-----------------------------------------------------------------------------
1825 // "realize" from m_widget
1826 //-----------------------------------------------------------------------------
1827
1828 static void
1829 gtk_window_realized_callback(GtkWidget* widget, wxWindow* win)
1830 {
1831 if (win->m_imData)
1832 {
1833 gtk_im_context_set_client_window( win->m_imData->context,
1834 widget->window);
1835 }
1836
1837 // We cannot set colours and fonts before the widget
1838 // been realized, so we do this directly after realization
1839 // or otherwise in idle time
1840
1841 if (win->m_needsStyleChange)
1842 {
1843 win->SetBackgroundStyle(win->GetBackgroundStyle());
1844 win->m_needsStyleChange = false;
1845 }
1846
1847 wxWindowCreateEvent event( win );
1848 event.SetEventObject( win );
1849 win->GTKProcessEvent( event );
1850 }
1851
1852 //-----------------------------------------------------------------------------
1853 // "size_allocate" from m_wxwindow or m_widget
1854 //-----------------------------------------------------------------------------
1855
1856 static void
1857 size_allocate(GtkWidget*, GtkAllocation* alloc, wxWindow* win)
1858 {
1859 int w = alloc->width;
1860 int h = alloc->height;
1861 if (win->m_wxwindow)
1862 {
1863 int border_x, border_y;
1864 WX_PIZZA(win->m_wxwindow)->get_border_widths(border_x, border_y);
1865 w -= 2 * border_x;
1866 h -= 2 * border_y;
1867 if (w < 0) w = 0;
1868 if (h < 0) h = 0;
1869 }
1870 if (win->m_oldClientWidth != w || win->m_oldClientHeight != h)
1871 {
1872 win->m_oldClientWidth = w;
1873 win->m_oldClientHeight = h;
1874 // this callback can be connected to m_wxwindow,
1875 // so always get size from m_widget->allocation
1876 win->m_width = win->m_widget->allocation.width;
1877 win->m_height = win->m_widget->allocation.height;
1878 if (!win->m_nativeSizeEvent)
1879 {
1880 wxSizeEvent event(win->GetSize(), win->GetId());
1881 event.SetEventObject(win);
1882 win->GTKProcessEvent(event);
1883 }
1884 }
1885 }
1886
1887 //-----------------------------------------------------------------------------
1888 // "grab_broken"
1889 //-----------------------------------------------------------------------------
1890
1891 #if GTK_CHECK_VERSION(2, 8, 0)
1892 static gboolean
1893 gtk_window_grab_broken( GtkWidget*,
1894 GdkEventGrabBroken *event,
1895 wxWindow *win )
1896 {
1897 // Mouse capture has been lost involuntarily, notify the application
1898 if(!event->keyboard && wxWindow::GetCapture() == win)
1899 {
1900 wxMouseCaptureLostEvent evt( win->GetId() );
1901 evt.SetEventObject( win );
1902 win->HandleWindowEvent( evt );
1903 }
1904 return false;
1905 }
1906 #endif
1907
1908 //-----------------------------------------------------------------------------
1909 // "style_set"
1910 //-----------------------------------------------------------------------------
1911
1912 static
1913 void gtk_window_style_set_callback( GtkWidget *WXUNUSED(widget),
1914 GtkStyle *previous_style,
1915 wxWindow* win )
1916 {
1917 if (win && previous_style)
1918 {
1919 wxSysColourChangedEvent event;
1920 event.SetEventObject(win);
1921
1922 win->GTKProcessEvent( event );
1923 }
1924 }
1925
1926 } // extern "C"
1927
1928 // Helper to suspend colour change event event processing while we change a widget's style
1929 class wxSuspendStyleEvents
1930 {
1931 public:
1932 wxSuspendStyleEvents(wxWindow* win)
1933 {
1934 m_win = NULL;
1935 if (win->m_wxwindow && win->IsTopLevel())
1936 {
1937 m_win = win;
1938 g_signal_handlers_block_by_func(
1939 m_win->m_wxwindow, (void*)gtk_window_style_set_callback, m_win);
1940 }
1941 }
1942 ~wxSuspendStyleEvents()
1943 {
1944 if (m_win)
1945 g_signal_handlers_unblock_by_func(
1946 m_win->m_wxwindow, (void*)gtk_window_style_set_callback, m_win);
1947 }
1948
1949 wxWindow* m_win;
1950 };
1951
1952 // ----------------------------------------------------------------------------
1953 // this wxWindowBase function is implemented here (in platform-specific file)
1954 // because it is static and so couldn't be made virtual
1955 // ----------------------------------------------------------------------------
1956
1957 wxWindow *wxWindowBase::DoFindFocus()
1958 {
1959 wxWindowGTK *focus = gs_pendingFocus ? gs_pendingFocus : gs_currentFocus;
1960 // the cast is necessary when we compile in wxUniversal mode
1961 return static_cast<wxWindow*>(focus);
1962 }
1963
1964 void wxWindowGTK::AddChildGTK(wxWindowGTK* child)
1965 {
1966 wxASSERT_MSG(m_wxwindow, "Cannot add a child to a window without a client area");
1967
1968 // the window might have been scrolled already, we
1969 // have to adapt the position
1970 wxPizza* pizza = WX_PIZZA(m_wxwindow);
1971 child->m_x += pizza->m_scroll_x;
1972 child->m_y += pizza->m_scroll_y;
1973
1974 gtk_widget_set_size_request(
1975 child->m_widget, child->m_width, child->m_height);
1976 gtk_fixed_put(
1977 GTK_FIXED(m_wxwindow), child->m_widget, child->m_x, child->m_y);
1978 }
1979
1980 //-----------------------------------------------------------------------------
1981 // global functions
1982 //-----------------------------------------------------------------------------
1983
1984 wxWindow *wxGetActiveWindow()
1985 {
1986 return wxWindow::FindFocus();
1987 }
1988
1989
1990 wxMouseState wxGetMouseState()
1991 {
1992 wxMouseState ms;
1993
1994 gint x;
1995 gint y;
1996 GdkModifierType mask;
1997
1998 gdk_window_get_pointer(NULL, &x, &y, &mask);
1999
2000 ms.SetX(x);
2001 ms.SetY(y);
2002 ms.SetLeftDown((mask & GDK_BUTTON1_MASK) != 0);
2003 ms.SetMiddleDown((mask & GDK_BUTTON2_MASK) != 0);
2004 ms.SetRightDown((mask & GDK_BUTTON3_MASK) != 0);
2005 ms.SetAux1Down((mask & GDK_BUTTON4_MASK) != 0);
2006 ms.SetAux2Down((mask & GDK_BUTTON5_MASK) != 0);
2007
2008 ms.SetControlDown((mask & GDK_CONTROL_MASK) != 0);
2009 ms.SetShiftDown((mask & GDK_SHIFT_MASK) != 0);
2010 ms.SetAltDown((mask & GDK_MOD1_MASK) != 0);
2011 ms.SetMetaDown((mask & GDK_META_MASK) != 0);
2012
2013 return ms;
2014 }
2015
2016 //-----------------------------------------------------------------------------
2017 // wxWindowGTK
2018 //-----------------------------------------------------------------------------
2019
2020 // in wxUniv/MSW this class is abstract because it doesn't have DoPopupMenu()
2021 // method
2022 #ifdef __WXUNIVERSAL__
2023 IMPLEMENT_ABSTRACT_CLASS(wxWindowGTK, wxWindowBase)
2024 #else // __WXGTK__
2025 IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxWindowBase)
2026 #endif // __WXUNIVERSAL__/__WXGTK__
2027
2028 void wxWindowGTK::Init()
2029 {
2030 // GTK specific
2031 m_widget = NULL;
2032 m_wxwindow = NULL;
2033 m_focusWidget = NULL;
2034
2035 // position/size
2036 m_x = 0;
2037 m_y = 0;
2038 m_width = 0;
2039 m_height = 0;
2040
2041 m_hasVMT = false;
2042
2043 m_showOnIdle = false;
2044
2045 m_noExpose = false;
2046 m_nativeSizeEvent = false;
2047
2048 m_isScrolling = false;
2049 m_mouseButtonDown = false;
2050
2051 // initialize scrolling stuff
2052 for ( int dir = 0; dir < ScrollDir_Max; dir++ )
2053 {
2054 m_scrollBar[dir] = NULL;
2055 m_scrollPos[dir] = 0;
2056 }
2057
2058 m_oldClientWidth =
2059 m_oldClientHeight = 0;
2060
2061 m_clipPaintRegion = false;
2062
2063 m_needsStyleChange = false;
2064
2065 m_cursor = *wxSTANDARD_CURSOR;
2066
2067 m_imData = NULL;
2068 m_dirtyTabOrder = false;
2069 }
2070
2071 wxWindowGTK::wxWindowGTK()
2072 {
2073 Init();
2074 }
2075
2076 wxWindowGTK::wxWindowGTK( wxWindow *parent,
2077 wxWindowID id,
2078 const wxPoint &pos,
2079 const wxSize &size,
2080 long style,
2081 const wxString &name )
2082 {
2083 Init();
2084
2085 Create( parent, id, pos, size, style, name );
2086 }
2087
2088 bool wxWindowGTK::Create( wxWindow *parent,
2089 wxWindowID id,
2090 const wxPoint &pos,
2091 const wxSize &size,
2092 long style,
2093 const wxString &name )
2094 {
2095 // Get default border
2096 wxBorder border = GetBorder(style);
2097
2098 style &= ~wxBORDER_MASK;
2099 style |= border;
2100
2101 if (!PreCreation( parent, pos, size ) ||
2102 !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
2103 {
2104 wxFAIL_MSG( wxT("wxWindowGTK creation failed") );
2105 return false;
2106 }
2107
2108 // We should accept the native look
2109 #if 0
2110 GtkScrolledWindowClass *scroll_class = GTK_SCROLLED_WINDOW_CLASS( GTK_OBJECT_GET_CLASS(m_widget) );
2111 scroll_class->scrollbar_spacing = 0;
2112 #endif
2113
2114
2115 m_wxwindow = wxPizza::New(m_windowStyle,this);
2116 #ifndef __WXUNIVERSAL__
2117 if (HasFlag(wxPizza::BORDER_STYLES))
2118 {
2119 g_signal_connect(m_wxwindow, "parent_set",
2120 G_CALLBACK(parent_set), this);
2121 }
2122 #endif
2123 if (!HasFlag(wxHSCROLL) && !HasFlag(wxVSCROLL))
2124 m_widget = m_wxwindow;
2125 else
2126 {
2127 m_widget = gtk_scrolled_window_new( NULL, NULL );
2128
2129 GtkScrolledWindow *scrolledWindow = GTK_SCROLLED_WINDOW(m_widget);
2130
2131 // There is a conflict with default bindings at GTK+
2132 // level between scrolled windows and notebooks both of which want to use
2133 // Ctrl-PageUp/Down: scrolled windows for scrolling in the horizontal
2134 // direction and notebooks for changing pages -- we decide that if we don't
2135 // have wxHSCROLL style we can safely sacrifice horizontal scrolling if it
2136 // means we can get working keyboard navigation in notebooks
2137 if ( !HasFlag(wxHSCROLL) )
2138 {
2139 GtkBindingSet *
2140 bindings = gtk_binding_set_by_class(G_OBJECT_GET_CLASS(m_widget));
2141 if ( bindings )
2142 {
2143 gtk_binding_entry_remove(bindings, GDK_Page_Up, GDK_CONTROL_MASK);
2144 gtk_binding_entry_remove(bindings, GDK_Page_Down, GDK_CONTROL_MASK);
2145 }
2146 }
2147
2148 if (HasFlag(wxALWAYS_SHOW_SB))
2149 {
2150 gtk_scrolled_window_set_policy( scrolledWindow, GTK_POLICY_ALWAYS, GTK_POLICY_ALWAYS );
2151
2152 scrolledWindow->hscrollbar_visible = TRUE;
2153 scrolledWindow->vscrollbar_visible = TRUE;
2154 }
2155 else
2156 {
2157 gtk_scrolled_window_set_policy( scrolledWindow, GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
2158 }
2159
2160 m_scrollBar[ScrollDir_Horz] = GTK_RANGE(scrolledWindow->hscrollbar);
2161 m_scrollBar[ScrollDir_Vert] = GTK_RANGE(scrolledWindow->vscrollbar);
2162 if (GetLayoutDirection() == wxLayout_RightToLeft)
2163 gtk_range_set_inverted( m_scrollBar[ScrollDir_Horz], TRUE );
2164
2165 gtk_container_add( GTK_CONTAINER(m_widget), m_wxwindow );
2166
2167 // connect various scroll-related events
2168 for ( int dir = 0; dir < ScrollDir_Max; dir++ )
2169 {
2170 // these handlers block mouse events to any window during scrolling
2171 // such as motion events and prevent GTK and wxWidgets from fighting
2172 // over where the slider should be
2173 g_signal_connect(m_scrollBar[dir], "button_press_event",
2174 G_CALLBACK(gtk_scrollbar_button_press_event), this);
2175 g_signal_connect(m_scrollBar[dir], "button_release_event",
2176 G_CALLBACK(gtk_scrollbar_button_release_event), this);
2177
2178 gulong handler_id = g_signal_connect(m_scrollBar[dir], "event_after",
2179 G_CALLBACK(gtk_scrollbar_event_after), this);
2180 g_signal_handler_block(m_scrollBar[dir], handler_id);
2181
2182 // these handlers get notified when scrollbar slider moves
2183 g_signal_connect_after(m_scrollBar[dir], "value_changed",
2184 G_CALLBACK(gtk_scrollbar_value_changed), this);
2185 }
2186
2187 gtk_widget_show( m_wxwindow );
2188 }
2189 g_object_ref(m_widget);
2190
2191 if (m_parent)
2192 m_parent->DoAddChild( this );
2193
2194 m_focusWidget = m_wxwindow;
2195
2196 SetCanFocus(AcceptsFocus());
2197
2198 PostCreation();
2199
2200 return true;
2201 }
2202
2203 wxWindowGTK::~wxWindowGTK()
2204 {
2205 SendDestroyEvent();
2206
2207 if (gs_currentFocus == this)
2208 gs_currentFocus = NULL;
2209 if (gs_pendingFocus == this)
2210 gs_pendingFocus = NULL;
2211
2212 if ( gs_deferredFocusOut == this )
2213 gs_deferredFocusOut = NULL;
2214
2215 m_hasVMT = false;
2216
2217 // destroy children before destroying this window itself
2218 DestroyChildren();
2219
2220 // unhook focus handlers to prevent stray events being
2221 // propagated to this (soon to be) dead object
2222 if (m_focusWidget != NULL)
2223 {
2224 g_signal_handlers_disconnect_by_func (m_focusWidget,
2225 (gpointer) gtk_window_focus_in_callback,
2226 this);
2227 g_signal_handlers_disconnect_by_func (m_focusWidget,
2228 (gpointer) gtk_window_focus_out_callback,
2229 this);
2230 }
2231
2232 if (m_widget)
2233 Show( false );
2234
2235 // delete before the widgets to avoid a crash on solaris
2236 delete m_imData;
2237
2238 if (m_widget)
2239 {
2240 // Note that gtk_widget_destroy() does not destroy the widget, it just
2241 // emits the "destroy" signal. The widget is not actually destroyed
2242 // until its reference count drops to zero.
2243 gtk_widget_destroy(m_widget);
2244 // Release our reference, should be the last one
2245 g_object_unref(m_widget);
2246 m_widget = NULL;
2247 }
2248 m_wxwindow = NULL;
2249 }
2250
2251 bool wxWindowGTK::PreCreation( wxWindowGTK *parent, const wxPoint &pos, const wxSize &size )
2252 {
2253 if ( GTKNeedsParent() )
2254 {
2255 wxCHECK_MSG( parent, false, wxT("Must have non-NULL parent") );
2256 }
2257
2258 // Use either the given size, or the default if -1 is given.
2259 // See wxWindowBase for these functions.
2260 m_width = WidthDefault(size.x) ;
2261 m_height = HeightDefault(size.y);
2262
2263 m_x = (int)pos.x;
2264 m_y = (int)pos.y;
2265
2266 return true;
2267 }
2268
2269 void wxWindowGTK::PostCreation()
2270 {
2271 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
2272
2273 if (m_wxwindow)
2274 {
2275 if (!m_noExpose)
2276 {
2277 // these get reported to wxWidgets -> wxPaintEvent
2278
2279 g_signal_connect (m_wxwindow, "expose_event",
2280 G_CALLBACK (gtk_window_expose_callback), this);
2281
2282 if (GetLayoutDirection() == wxLayout_LeftToRight)
2283 gtk_widget_set_redraw_on_allocate(m_wxwindow, HasFlag(wxFULL_REPAINT_ON_RESIZE));
2284 }
2285
2286 // Create input method handler
2287 m_imData = new wxGtkIMData;
2288
2289 // Cannot handle drawing preedited text yet
2290 gtk_im_context_set_use_preedit( m_imData->context, FALSE );
2291
2292 g_signal_connect (m_imData->context, "commit",
2293 G_CALLBACK (gtk_wxwindow_commit_cb), this);
2294 }
2295
2296 // focus handling
2297
2298 if (!GTK_IS_WINDOW(m_widget))
2299 {
2300 if (m_focusWidget == NULL)
2301 m_focusWidget = m_widget;
2302
2303 if (m_wxwindow)
2304 {
2305 g_signal_connect (m_focusWidget, "focus_in_event",
2306 G_CALLBACK (gtk_window_focus_in_callback), this);
2307 g_signal_connect (m_focusWidget, "focus_out_event",
2308 G_CALLBACK (gtk_window_focus_out_callback), this);
2309 }
2310 else
2311 {
2312 g_signal_connect_after (m_focusWidget, "focus_in_event",
2313 G_CALLBACK (gtk_window_focus_in_callback), this);
2314 g_signal_connect_after (m_focusWidget, "focus_out_event",
2315 G_CALLBACK (gtk_window_focus_out_callback), this);
2316 }
2317 }
2318
2319 if ( !AcceptsFocusFromKeyboard() )
2320 {
2321 SetCanFocus(false);
2322
2323 g_signal_connect(m_widget, "focus",
2324 G_CALLBACK(wx_window_focus_callback), this);
2325 }
2326
2327 // connect to the various key and mouse handlers
2328
2329 GtkWidget *connect_widget = GetConnectWidget();
2330
2331 ConnectWidget( connect_widget );
2332
2333 /* We cannot set colours, fonts and cursors before the widget has
2334 been realized, so we do this directly after realization */
2335 g_signal_connect (connect_widget, "realize",
2336 G_CALLBACK (gtk_window_realized_callback), this);
2337
2338 if (!IsTopLevel())
2339 {
2340 g_signal_connect(m_wxwindow ? m_wxwindow : m_widget, "size_allocate",
2341 G_CALLBACK(size_allocate), this);
2342 }
2343
2344 #if GTK_CHECK_VERSION(2, 8, 0)
2345 if ( gtk_check_version(2,8,0) == NULL )
2346 {
2347 // Make sure we can notify the app when mouse capture is lost
2348 if ( m_wxwindow )
2349 {
2350 g_signal_connect (m_wxwindow, "grab_broken_event",
2351 G_CALLBACK (gtk_window_grab_broken), this);
2352 }
2353
2354 if ( connect_widget != m_wxwindow )
2355 {
2356 g_signal_connect (connect_widget, "grab_broken_event",
2357 G_CALLBACK (gtk_window_grab_broken), this);
2358 }
2359 }
2360 #endif // GTK+ >= 2.8
2361
2362 if ( GTKShouldConnectSizeRequest() )
2363 {
2364 // This is needed if we want to add our windows into native
2365 // GTK controls, such as the toolbar. With this callback, the
2366 // toolbar gets to know the correct size (the one set by the
2367 // programmer). Sadly, it misbehaves for wxComboBox.
2368 g_signal_connect (m_widget, "size_request",
2369 G_CALLBACK (wxgtk_window_size_request_callback),
2370 this);
2371 }
2372
2373 InheritAttributes();
2374
2375 m_hasVMT = true;
2376
2377 SetLayoutDirection(wxLayout_Default);
2378
2379 // unless the window was created initially hidden (i.e. Hide() had been
2380 // called before Create()), we should show it at GTK+ level as well
2381 if ( IsShown() )
2382 gtk_widget_show( m_widget );
2383 }
2384
2385 void wxWindowGTK::ConnectWidget( GtkWidget *widget )
2386 {
2387 g_signal_connect (widget, "key_press_event",
2388 G_CALLBACK (gtk_window_key_press_callback), this);
2389 g_signal_connect (widget, "key_release_event",
2390 G_CALLBACK (gtk_window_key_release_callback), this);
2391 g_signal_connect (widget, "button_press_event",
2392 G_CALLBACK (gtk_window_button_press_callback), this);
2393 g_signal_connect (widget, "button_release_event",
2394 G_CALLBACK (gtk_window_button_release_callback), this);
2395 g_signal_connect (widget, "motion_notify_event",
2396 G_CALLBACK (gtk_window_motion_notify_callback), this);
2397
2398 g_signal_connect (widget, "scroll_event",
2399 G_CALLBACK (window_scroll_event), this);
2400 if (m_scrollBar[ScrollDir_Horz])
2401 g_signal_connect (m_scrollBar[ScrollDir_Horz], "scroll_event",
2402 G_CALLBACK (window_scroll_event_hscrollbar), this);
2403 if (m_scrollBar[ScrollDir_Vert])
2404 g_signal_connect (m_scrollBar[ScrollDir_Vert], "scroll_event",
2405 G_CALLBACK (window_scroll_event), this);
2406
2407 g_signal_connect (widget, "popup_menu",
2408 G_CALLBACK (wxgtk_window_popup_menu_callback), this);
2409 g_signal_connect (widget, "enter_notify_event",
2410 G_CALLBACK (gtk_window_enter_callback), this);
2411 g_signal_connect (widget, "leave_notify_event",
2412 G_CALLBACK (gtk_window_leave_callback), this);
2413
2414 if (IsTopLevel() && m_wxwindow)
2415 g_signal_connect (m_wxwindow, "style_set",
2416 G_CALLBACK (gtk_window_style_set_callback), this);
2417 }
2418
2419 bool wxWindowGTK::Destroy()
2420 {
2421 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
2422
2423 m_hasVMT = false;
2424
2425 return wxWindowBase::Destroy();
2426 }
2427
2428 void wxWindowGTK::DoMoveWindow(int x, int y, int width, int height)
2429 {
2430 gtk_widget_set_size_request(m_widget, width, height);
2431
2432 // inform the parent to perform the move
2433 wxASSERT_MSG(m_parent && m_parent->m_wxwindow,
2434 "the parent window has no client area?");
2435 WX_PIZZA(m_parent->m_wxwindow)->move(m_widget, x, y);
2436 }
2437
2438 void wxWindowGTK::ConstrainSize()
2439 {
2440 #ifdef __WXGPE__
2441 // GPE's window manager doesn't like size hints at all, esp. when the user
2442 // has to use the virtual keyboard, so don't constrain size there
2443 if (!IsTopLevel())
2444 #endif
2445 {
2446 const wxSize minSize = GetMinSize();
2447 const wxSize maxSize = GetMaxSize();
2448 if (minSize.x > 0 && m_width < minSize.x) m_width = minSize.x;
2449 if (minSize.y > 0 && m_height < minSize.y) m_height = minSize.y;
2450 if (maxSize.x > 0 && m_width > maxSize.x) m_width = maxSize.x;
2451 if (maxSize.y > 0 && m_height > maxSize.y) m_height = maxSize.y;
2452 }
2453 }
2454
2455 void wxWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags )
2456 {
2457 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
2458 wxASSERT_MSG( (m_parent != NULL), wxT("wxWindowGTK::SetSize requires parent.\n") );
2459
2460 int currentX, currentY;
2461 GetPosition(&currentX, &currentY);
2462 if (x == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2463 x = currentX;
2464 if (y == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2465 y = currentY;
2466 AdjustForParentClientOrigin(x, y, sizeFlags);
2467
2468 // calculate the best size if we should auto size the window
2469 if ( ((sizeFlags & wxSIZE_AUTO_WIDTH) && width == -1) ||
2470 ((sizeFlags & wxSIZE_AUTO_HEIGHT) && height == -1) )
2471 {
2472 const wxSize sizeBest = GetBestSize();
2473 if ( (sizeFlags & wxSIZE_AUTO_WIDTH) && width == -1 )
2474 width = sizeBest.x;
2475 if ( (sizeFlags & wxSIZE_AUTO_HEIGHT) && height == -1 )
2476 height = sizeBest.y;
2477 }
2478
2479 const wxSize oldSize(m_width, m_height);
2480 if (width != -1)
2481 m_width = width;
2482 if (height != -1)
2483 m_height = height;
2484
2485 if (m_parent->m_wxwindow)
2486 {
2487 wxPizza* pizza = WX_PIZZA(m_parent->m_wxwindow);
2488 m_x = x + pizza->m_scroll_x;
2489 m_y = y + pizza->m_scroll_y;
2490
2491 int left_border = 0;
2492 int right_border = 0;
2493 int top_border = 0;
2494 int bottom_border = 0;
2495
2496 /* the default button has a border around it */
2497 if (GTK_WIDGET_CAN_DEFAULT(m_widget))
2498 {
2499 GtkBorder *default_border = NULL;
2500 gtk_widget_style_get( m_widget, "default_border", &default_border, NULL );
2501 if (default_border)
2502 {
2503 left_border += default_border->left;
2504 right_border += default_border->right;
2505 top_border += default_border->top;
2506 bottom_border += default_border->bottom;
2507 gtk_border_free( default_border );
2508 }
2509 }
2510
2511 DoMoveWindow( m_x - left_border,
2512 m_y - top_border,
2513 m_width+left_border+right_border,
2514 m_height+top_border+bottom_border );
2515 }
2516
2517 if (m_width != oldSize.x || m_height != oldSize.y)
2518 {
2519 // update these variables to keep size_allocate handler
2520 // from sending another size event for this change
2521 GetClientSize( &m_oldClientWidth, &m_oldClientHeight );
2522
2523 gtk_widget_queue_resize(m_widget);
2524 if (!m_nativeSizeEvent)
2525 {
2526 wxSizeEvent event( wxSize(m_width,m_height), GetId() );
2527 event.SetEventObject( this );
2528 HandleWindowEvent( event );
2529 }
2530 } else
2531 if (sizeFlags & wxSIZE_FORCE_EVENT)
2532 {
2533 wxSizeEvent event( wxSize(m_width,m_height), GetId() );
2534 event.SetEventObject( this );
2535 HandleWindowEvent( event );
2536 }
2537 }
2538
2539 bool wxWindowGTK::GTKShowFromOnIdle()
2540 {
2541 if (IsShown() && m_showOnIdle && !GTK_WIDGET_VISIBLE (m_widget))
2542 {
2543 GtkAllocation alloc;
2544 alloc.x = m_x;
2545 alloc.y = m_y;
2546 alloc.width = m_width;
2547 alloc.height = m_height;
2548 gtk_widget_size_allocate( m_widget, &alloc );
2549 gtk_widget_show( m_widget );
2550 wxShowEvent eventShow(GetId(), true);
2551 eventShow.SetEventObject(this);
2552 HandleWindowEvent(eventShow);
2553 m_showOnIdle = false;
2554 return true;
2555 }
2556
2557 return false;
2558 }
2559
2560 void wxWindowGTK::OnInternalIdle()
2561 {
2562 if ( gs_deferredFocusOut )
2563 GTKHandleDeferredFocusOut();
2564
2565 // Check if we have to show window now
2566 if (GTKShowFromOnIdle()) return;
2567
2568 if ( m_dirtyTabOrder )
2569 {
2570 m_dirtyTabOrder = false;
2571 RealizeTabOrder();
2572 }
2573
2574 // Update style if the window was not yet realized when
2575 // SetBackgroundStyle() was called
2576 if (m_needsStyleChange)
2577 {
2578 SetBackgroundStyle(GetBackgroundStyle());
2579 m_needsStyleChange = false;
2580 }
2581
2582 wxCursor cursor = m_cursor;
2583 if (g_globalCursor.Ok()) cursor = g_globalCursor;
2584
2585 if (cursor.Ok())
2586 {
2587 /* I now set the cursor anew in every OnInternalIdle call
2588 as setting the cursor in a parent window also effects the
2589 windows above so that checking for the current cursor is
2590 not possible. */
2591
2592 if (m_wxwindow && (m_wxwindow != m_widget))
2593 {
2594 GdkWindow *window = m_wxwindow->window;
2595 if (window)
2596 gdk_window_set_cursor( window, cursor.GetCursor() );
2597
2598 if (!g_globalCursor.Ok())
2599 cursor = *wxSTANDARD_CURSOR;
2600
2601 window = m_widget->window;
2602 if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
2603 gdk_window_set_cursor( window, cursor.GetCursor() );
2604
2605 }
2606 else if ( m_widget )
2607 {
2608 GdkWindow *window = m_widget->window;
2609 if ( window && !GTK_WIDGET_NO_WINDOW(m_widget) )
2610 gdk_window_set_cursor( window, cursor.GetCursor() );
2611 }
2612 }
2613
2614 if (wxUpdateUIEvent::CanUpdate(this) && IsShownOnScreen())
2615 UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
2616 }
2617
2618 void wxWindowGTK::DoGetSize( int *width, int *height ) const
2619 {
2620 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2621
2622 if (width) (*width) = m_width;
2623 if (height) (*height) = m_height;
2624 }
2625
2626 void wxWindowGTK::DoSetClientSize( int width, int height )
2627 {
2628 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2629
2630 const wxSize size = GetSize();
2631 const wxSize clientSize = GetClientSize();
2632 SetSize(width + (size.x - clientSize.x), height + (size.y - clientSize.y));
2633 }
2634
2635 void wxWindowGTK::DoGetClientSize( int *width, int *height ) const
2636 {
2637 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2638
2639 int w = m_width;
2640 int h = m_height;
2641
2642 if ( m_wxwindow )
2643 {
2644 // if window is scrollable, account for scrollbars
2645 if ( GTK_IS_SCROLLED_WINDOW(m_widget) )
2646 {
2647 GtkPolicyType policy[ScrollDir_Max];
2648 gtk_scrolled_window_get_policy(GTK_SCROLLED_WINDOW(m_widget),
2649 &policy[ScrollDir_Horz],
2650 &policy[ScrollDir_Vert]);
2651
2652 for ( int i = 0; i < ScrollDir_Max; i++ )
2653 {
2654 // don't account for the scrollbars we don't have
2655 GtkRange * const range = m_scrollBar[i];
2656 if ( !range )
2657 continue;
2658
2659 // nor for the ones we have but don't current show
2660 switch ( policy[i] )
2661 {
2662 case GTK_POLICY_NEVER:
2663 // never shown so doesn't take any place
2664 continue;
2665
2666 case GTK_POLICY_ALWAYS:
2667 // no checks necessary
2668 break;
2669
2670 case GTK_POLICY_AUTOMATIC:
2671 // may be shown or not, check
2672 GtkAdjustment *adj = gtk_range_get_adjustment(range);
2673 if ( adj->upper <= adj->page_size )
2674 continue;
2675 }
2676
2677 GtkScrolledWindowClass *scroll_class =
2678 GTK_SCROLLED_WINDOW_CLASS( GTK_OBJECT_GET_CLASS(m_widget) );
2679
2680 GtkRequisition req;
2681 gtk_widget_size_request(GTK_WIDGET(range), &req);
2682 if (i == ScrollDir_Horz)
2683 h -= req.height + scroll_class->scrollbar_spacing;
2684 else
2685 w -= req.width + scroll_class->scrollbar_spacing;
2686 }
2687 }
2688
2689 int border_x, border_y;
2690 WX_PIZZA(m_wxwindow)->get_border_widths(border_x, border_y);
2691 w -= 2 * border_x;
2692 h -= 2 * border_y;
2693
2694 if (w < 0)
2695 w = 0;
2696 if (h < 0)
2697 h = 0;
2698 }
2699
2700 if (width) *width = w;
2701 if (height) *height = h;
2702 }
2703
2704 void wxWindowGTK::DoGetPosition( int *x, int *y ) const
2705 {
2706 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2707
2708 int dx = 0;
2709 int dy = 0;
2710 if (!IsTopLevel() && m_parent && m_parent->m_wxwindow)
2711 {
2712 wxPizza* pizza = WX_PIZZA(m_parent->m_wxwindow);
2713 dx = pizza->m_scroll_x;
2714 dy = pizza->m_scroll_y;
2715 }
2716
2717 if (m_x == -1 && m_y == -1)
2718 {
2719 GdkWindow *source = NULL;
2720 if (m_wxwindow)
2721 source = m_wxwindow->window;
2722 else
2723 source = m_widget->window;
2724
2725 if (source)
2726 {
2727 int org_x = 0;
2728 int org_y = 0;
2729 gdk_window_get_origin( source, &org_x, &org_y );
2730
2731 if (m_parent)
2732 m_parent->ScreenToClient(&org_x, &org_y);
2733
2734 const_cast<wxWindowGTK*>(this)->m_x = org_x;
2735 const_cast<wxWindowGTK*>(this)->m_y = org_y;
2736 }
2737 }
2738
2739 if (x) (*x) = m_x - dx;
2740 if (y) (*y) = m_y - dy;
2741 }
2742
2743 void wxWindowGTK::DoClientToScreen( int *x, int *y ) const
2744 {
2745 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2746
2747 if (!m_widget->window) return;
2748
2749 GdkWindow *source = NULL;
2750 if (m_wxwindow)
2751 source = m_wxwindow->window;
2752 else
2753 source = m_widget->window;
2754
2755 int org_x = 0;
2756 int org_y = 0;
2757 gdk_window_get_origin( source, &org_x, &org_y );
2758
2759 if (!m_wxwindow)
2760 {
2761 if (GTK_WIDGET_NO_WINDOW (m_widget))
2762 {
2763 org_x += m_widget->allocation.x;
2764 org_y += m_widget->allocation.y;
2765 }
2766 }
2767
2768
2769 if (x)
2770 {
2771 if (GetLayoutDirection() == wxLayout_RightToLeft)
2772 *x = (GetClientSize().x - *x) + org_x;
2773 else
2774 *x += org_x;
2775 }
2776
2777 if (y) *y += org_y;
2778 }
2779
2780 void wxWindowGTK::DoScreenToClient( int *x, int *y ) const
2781 {
2782 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2783
2784 if (!m_widget->window) return;
2785
2786 GdkWindow *source = NULL;
2787 if (m_wxwindow)
2788 source = m_wxwindow->window;
2789 else
2790 source = m_widget->window;
2791
2792 int org_x = 0;
2793 int org_y = 0;
2794 gdk_window_get_origin( source, &org_x, &org_y );
2795
2796 if (!m_wxwindow)
2797 {
2798 if (GTK_WIDGET_NO_WINDOW (m_widget))
2799 {
2800 org_x += m_widget->allocation.x;
2801 org_y += m_widget->allocation.y;
2802 }
2803 }
2804
2805 if (x)
2806 {
2807 if (GetLayoutDirection() == wxLayout_RightToLeft)
2808 *x = (GetClientSize().x - *x) - org_x;
2809 else
2810 *x -= org_x;
2811 }
2812 if (y) *y -= org_y;
2813 }
2814
2815 bool wxWindowGTK::Show( bool show )
2816 {
2817 if ( !wxWindowBase::Show(show) )
2818 {
2819 // nothing to do
2820 return false;
2821 }
2822
2823 // notice that we may call Hide() before the window is created and this is
2824 // actually useful to create it hidden initially -- but we can't call
2825 // Show() before it is created
2826 if ( !m_widget )
2827 {
2828 wxASSERT_MSG( !show, "can't show invalid window" );
2829 return true;
2830 }
2831
2832 if ( show )
2833 {
2834 if ( m_showOnIdle )
2835 {
2836 // defer until later
2837 return true;
2838 }
2839
2840 gtk_widget_show(m_widget);
2841 }
2842 else // hide
2843 {
2844 gtk_widget_hide(m_widget);
2845 }
2846
2847 wxShowEvent eventShow(GetId(), show);
2848 eventShow.SetEventObject(this);
2849 HandleWindowEvent(eventShow);
2850
2851 return true;
2852 }
2853
2854 void wxWindowGTK::DoEnable( bool enable )
2855 {
2856 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2857
2858 gtk_widget_set_sensitive( m_widget, enable );
2859 if (m_wxwindow && (m_wxwindow != m_widget))
2860 gtk_widget_set_sensitive( m_wxwindow, enable );
2861 }
2862
2863 int wxWindowGTK::GetCharHeight() const
2864 {
2865 wxCHECK_MSG( (m_widget != NULL), 12, wxT("invalid window") );
2866
2867 wxFont font = GetFont();
2868 wxCHECK_MSG( font.Ok(), 12, wxT("invalid font") );
2869
2870 PangoContext* context = gtk_widget_get_pango_context(m_widget);
2871
2872 if (!context)
2873 return 0;
2874
2875 PangoFontDescription *desc = font.GetNativeFontInfo()->description;
2876 PangoLayout *layout = pango_layout_new(context);
2877 pango_layout_set_font_description(layout, desc);
2878 pango_layout_set_text(layout, "H", 1);
2879 PangoLayoutLine *line = (PangoLayoutLine *)pango_layout_get_lines(layout)->data;
2880
2881 PangoRectangle rect;
2882 pango_layout_line_get_extents(line, NULL, &rect);
2883
2884 g_object_unref (layout);
2885
2886 return (int) PANGO_PIXELS(rect.height);
2887 }
2888
2889 int wxWindowGTK::GetCharWidth() const
2890 {
2891 wxCHECK_MSG( (m_widget != NULL), 8, wxT("invalid window") );
2892
2893 wxFont font = GetFont();
2894 wxCHECK_MSG( font.Ok(), 8, wxT("invalid font") );
2895
2896 PangoContext* context = gtk_widget_get_pango_context(m_widget);
2897
2898 if (!context)
2899 return 0;
2900
2901 PangoFontDescription *desc = font.GetNativeFontInfo()->description;
2902 PangoLayout *layout = pango_layout_new(context);
2903 pango_layout_set_font_description(layout, desc);
2904 pango_layout_set_text(layout, "g", 1);
2905 PangoLayoutLine *line = (PangoLayoutLine *)pango_layout_get_lines(layout)->data;
2906
2907 PangoRectangle rect;
2908 pango_layout_line_get_extents(line, NULL, &rect);
2909
2910 g_object_unref (layout);
2911
2912 return (int) PANGO_PIXELS(rect.width);
2913 }
2914
2915 void wxWindowGTK::DoGetTextExtent( const wxString& string,
2916 int *x,
2917 int *y,
2918 int *descent,
2919 int *externalLeading,
2920 const wxFont *theFont ) const
2921 {
2922 wxFont fontToUse = theFont ? *theFont : GetFont();
2923
2924 wxCHECK_RET( fontToUse.Ok(), wxT("invalid font") );
2925
2926 if (string.empty())
2927 {
2928 if (x) (*x) = 0;
2929 if (y) (*y) = 0;
2930 return;
2931 }
2932
2933 PangoContext *context = NULL;
2934 if (m_widget)
2935 context = gtk_widget_get_pango_context( m_widget );
2936
2937 if (!context)
2938 {
2939 if (x) (*x) = 0;
2940 if (y) (*y) = 0;
2941 return;
2942 }
2943
2944 PangoFontDescription *desc = fontToUse.GetNativeFontInfo()->description;
2945 PangoLayout *layout = pango_layout_new(context);
2946 pango_layout_set_font_description(layout, desc);
2947 {
2948 const wxCharBuffer data = wxGTK_CONV( string );
2949 if ( data )
2950 pango_layout_set_text(layout, data, strlen(data));
2951 }
2952
2953 PangoRectangle rect;
2954 pango_layout_get_extents(layout, NULL, &rect);
2955
2956 if (x) (*x) = (wxCoord) PANGO_PIXELS(rect.width);
2957 if (y) (*y) = (wxCoord) PANGO_PIXELS(rect.height);
2958 if (descent)
2959 {
2960 PangoLayoutIter *iter = pango_layout_get_iter(layout);
2961 int baseline = pango_layout_iter_get_baseline(iter);
2962 pango_layout_iter_free(iter);
2963 *descent = *y - PANGO_PIXELS(baseline);
2964 }
2965 if (externalLeading) (*externalLeading) = 0; // ??
2966
2967 g_object_unref (layout);
2968 }
2969
2970 void wxWindowGTK::GTKDisableFocusOutEvent()
2971 {
2972 g_signal_handlers_block_by_func( m_focusWidget,
2973 (gpointer) gtk_window_focus_out_callback, this);
2974 }
2975
2976 void wxWindowGTK::GTKEnableFocusOutEvent()
2977 {
2978 g_signal_handlers_unblock_by_func( m_focusWidget,
2979 (gpointer) gtk_window_focus_out_callback, this);
2980 }
2981
2982 bool wxWindowGTK::GTKHandleFocusIn()
2983 {
2984 // Disable default focus handling for custom windows since the default GTK+
2985 // handler issues a repaint
2986 const bool retval = m_wxwindow ? true : false;
2987
2988
2989 // NB: if there's still unprocessed deferred focus-out event (see
2990 // GTKHandleFocusOut() for explanation), we need to process it first so
2991 // that the order of focus events -- focus-out first, then focus-in
2992 // elsewhere -- is preserved
2993 if ( gs_deferredFocusOut )
2994 {
2995 if ( GTKNeedsToFilterSameWindowFocus() &&
2996 gs_deferredFocusOut == this )
2997 {
2998 // GTK+ focus changed from this wxWindow back to itself, so don't
2999 // emit any events at all
3000 wxLogTrace(TRACE_FOCUS,
3001 "filtered out spurious focus change within %s(%p, %s)",
3002 GetClassInfo()->GetClassName(), this, GetLabel());
3003 gs_deferredFocusOut = NULL;
3004 return retval;
3005 }
3006
3007 // otherwise we need to send focus-out first
3008 wxASSERT_MSG ( gs_deferredFocusOut != this,
3009 "GTKHandleFocusIn(GTKFocus_Normal) called even though focus changed back to itself - derived class should handle this" );
3010 GTKHandleDeferredFocusOut();
3011 }
3012
3013
3014 wxLogTrace(TRACE_FOCUS,
3015 "handling focus_in event for %s(%p, %s)",
3016 GetClassInfo()->GetClassName(), this, GetLabel());
3017
3018 if (m_imData)
3019 gtk_im_context_focus_in(m_imData->context);
3020
3021 gs_currentFocus = this;
3022 gs_pendingFocus = NULL;
3023
3024 #if wxUSE_CARET
3025 // caret needs to be informed about focus change
3026 wxCaret *caret = GetCaret();
3027 if ( caret )
3028 {
3029 caret->OnSetFocus();
3030 }
3031 #endif // wxUSE_CARET
3032
3033 // Notify the parent keeping track of focus for the kbd navigation
3034 // purposes that we got it.
3035 wxChildFocusEvent eventChildFocus(static_cast<wxWindow*>(this));
3036 GTKProcessEvent(eventChildFocus);
3037
3038 wxFocusEvent eventFocus(wxEVT_SET_FOCUS, GetId());
3039 eventFocus.SetEventObject(this);
3040 GTKProcessEvent(eventFocus);
3041
3042 return retval;
3043 }
3044
3045 bool wxWindowGTK::GTKHandleFocusOut()
3046 {
3047 // Disable default focus handling for custom windows since the default GTK+
3048 // handler issues a repaint
3049 const bool retval = m_wxwindow ? true : false;
3050
3051
3052 // NB: If a control is composed of several GtkWidgets and when focus
3053 // changes from one of them to another within the same wxWindow, we get
3054 // a focus-out event followed by focus-in for another GtkWidget owned
3055 // by the same wx control. We don't want to generate two spurious
3056 // wxEVT_SET_FOCUS events in this case, so we defer sending wx events
3057 // from GTKHandleFocusOut() until we know for sure it's not coming back
3058 // (i.e. in GTKHandleFocusIn() or at idle time).
3059 if ( GTKNeedsToFilterSameWindowFocus() )
3060 {
3061 wxASSERT_MSG( gs_deferredFocusOut == NULL,
3062 "deferred focus out event already pending" );
3063 wxLogTrace(TRACE_FOCUS,
3064 "deferring focus_out event for %s(%p, %s)",
3065 GetClassInfo()->GetClassName(), this, GetLabel());
3066 gs_deferredFocusOut = this;
3067 return retval;
3068 }
3069
3070 GTKHandleFocusOutNoDeferring();
3071
3072 return retval;
3073 }
3074
3075 void wxWindowGTK::GTKHandleFocusOutNoDeferring()
3076 {
3077 wxLogTrace(TRACE_FOCUS,
3078 "handling focus_out event for %s(%p, %s)",
3079 GetClassInfo()->GetClassName(), this, GetLabel());
3080
3081 if (m_imData)
3082 gtk_im_context_focus_out(m_imData->context);
3083
3084 if ( gs_currentFocus != this )
3085 {
3086 // Something is terribly wrong, gs_currentFocus is out of sync with the
3087 // real focus. We will reset it to NULL anyway, because after this
3088 // focus-out event is handled, one of the following with happen:
3089 //
3090 // * either focus will go out of the app altogether, in which case
3091 // gs_currentFocus _should_ be NULL
3092 //
3093 // * or it goes to another control, in which case focus-in event will
3094 // follow immediately and it will set gs_currentFocus to the right
3095 // value
3096 wxLogDebug("window %s(%p, %s) lost focus even though it didn't have it",
3097 GetClassInfo()->GetClassName(), this, GetLabel());
3098 }
3099 gs_currentFocus = NULL;
3100
3101 #if wxUSE_CARET
3102 // caret needs to be informed about focus change
3103 wxCaret *caret = GetCaret();
3104 if ( caret )
3105 {
3106 caret->OnKillFocus();
3107 }
3108 #endif // wxUSE_CARET
3109
3110 wxFocusEvent event( wxEVT_KILL_FOCUS, GetId() );
3111 event.SetEventObject( this );
3112 GTKProcessEvent( event );
3113 }
3114
3115 /*static*/
3116 void wxWindowGTK::GTKHandleDeferredFocusOut()
3117 {
3118 // NB: See GTKHandleFocusOut() for explanation. This function is called
3119 // from either GTKHandleFocusIn() or OnInternalIdle() to process
3120 // deferred event.
3121 if ( gs_deferredFocusOut )
3122 {
3123 wxWindowGTK *win = gs_deferredFocusOut;
3124 gs_deferredFocusOut = NULL;
3125
3126 wxLogTrace(TRACE_FOCUS,
3127 "processing deferred focus_out event for %s(%p, %s)",
3128 win->GetClassInfo()->GetClassName(), win, win->GetLabel());
3129
3130 win->GTKHandleFocusOutNoDeferring();
3131 }
3132 }
3133
3134 void wxWindowGTK::SetFocus()
3135 {
3136 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
3137
3138 // Setting "physical" focus is not immediate in GTK+ and while
3139 // gtk_widget_is_focus ("determines if the widget is the focus widget
3140 // within its toplevel", i.e. returns true for one widget per TLW, not
3141 // globally) returns true immediately after grabbing focus,
3142 // GTK_WIDGET_HAS_FOCUS (which returns true only for the one widget that
3143 // has focus at the moment) takes affect only after the window is shown
3144 // (if it was hidden at the moment of the call) or at the next event loop
3145 // iteration.
3146 //
3147 // Because we want to FindFocus() call immediately following
3148 // foo->SetFocus() to return foo, we have to keep track of "pending" focus
3149 // ourselves.
3150 gs_pendingFocus = this;
3151
3152 GtkWidget *widget = m_wxwindow ? m_wxwindow : m_focusWidget;
3153
3154 if ( GTK_IS_CONTAINER(widget) &&
3155 !GTK_WIDGET_CAN_FOCUS(widget) )
3156 {
3157 wxLogTrace(TRACE_FOCUS,
3158 wxT("Setting focus to a child of %s(%p, %s)"),
3159 GetClassInfo()->GetClassName(), this, GetLabel().c_str());
3160 gtk_widget_child_focus(widget, GTK_DIR_TAB_FORWARD);
3161 }
3162 else
3163 {
3164 wxLogTrace(TRACE_FOCUS,
3165 wxT("Setting focus to %s(%p, %s)"),
3166 GetClassInfo()->GetClassName(), this, GetLabel().c_str());
3167 gtk_widget_grab_focus(widget);
3168 }
3169 }
3170
3171 void wxWindowGTK::SetCanFocus(bool canFocus)
3172 {
3173 if ( canFocus )
3174 GTK_WIDGET_SET_FLAGS(m_widget, GTK_CAN_FOCUS);
3175 else
3176 GTK_WIDGET_UNSET_FLAGS(m_widget, GTK_CAN_FOCUS);
3177
3178 if ( m_wxwindow && (m_widget != m_wxwindow) )
3179 {
3180 if ( canFocus )
3181 GTK_WIDGET_SET_FLAGS(m_wxwindow, GTK_CAN_FOCUS);
3182 else
3183 GTK_WIDGET_UNSET_FLAGS(m_wxwindow, GTK_CAN_FOCUS);
3184 }
3185 }
3186
3187 bool wxWindowGTK::Reparent( wxWindowBase *newParentBase )
3188 {
3189 wxCHECK_MSG( (m_widget != NULL), false, wxT("invalid window") );
3190
3191 wxWindowGTK *oldParent = m_parent,
3192 *newParent = (wxWindowGTK *)newParentBase;
3193
3194 wxASSERT( GTK_IS_WIDGET(m_widget) );
3195
3196 if ( !wxWindowBase::Reparent(newParent) )
3197 return false;
3198
3199 wxASSERT( GTK_IS_WIDGET(m_widget) );
3200
3201 if (oldParent)
3202 gtk_container_remove( GTK_CONTAINER(m_widget->parent), m_widget );
3203
3204 wxASSERT( GTK_IS_WIDGET(m_widget) );
3205
3206 if (newParent)
3207 {
3208 if (GTK_WIDGET_VISIBLE (newParent->m_widget))
3209 {
3210 m_showOnIdle = true;
3211 gtk_widget_hide( m_widget );
3212 }
3213 /* insert GTK representation */
3214 newParent->AddChildGTK(this);
3215 }
3216
3217 SetLayoutDirection(wxLayout_Default);
3218
3219 return true;
3220 }
3221
3222 void wxWindowGTK::DoAddChild(wxWindowGTK *child)
3223 {
3224 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
3225 wxASSERT_MSG( (child != NULL), wxT("invalid child window") );
3226
3227 /* add to list */
3228 AddChild( child );
3229
3230 /* insert GTK representation */
3231 AddChildGTK(child);
3232 }
3233
3234 void wxWindowGTK::AddChild(wxWindowBase *child)
3235 {
3236 wxWindowBase::AddChild(child);
3237 m_dirtyTabOrder = true;
3238 wxTheApp->WakeUpIdle();
3239 }
3240
3241 void wxWindowGTK::RemoveChild(wxWindowBase *child)
3242 {
3243 wxWindowBase::RemoveChild(child);
3244 m_dirtyTabOrder = true;
3245 wxTheApp->WakeUpIdle();
3246 }
3247
3248 /* static */
3249 wxLayoutDirection wxWindowGTK::GTKGetLayout(GtkWidget *widget)
3250 {
3251 return gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL
3252 ? wxLayout_RightToLeft
3253 : wxLayout_LeftToRight;
3254 }
3255
3256 /* static */
3257 void wxWindowGTK::GTKSetLayout(GtkWidget *widget, wxLayoutDirection dir)
3258 {
3259 wxASSERT_MSG( dir != wxLayout_Default, wxT("invalid layout direction") );
3260
3261 gtk_widget_set_direction(widget,
3262 dir == wxLayout_RightToLeft ? GTK_TEXT_DIR_RTL
3263 : GTK_TEXT_DIR_LTR);
3264 }
3265
3266 wxLayoutDirection wxWindowGTK::GetLayoutDirection() const
3267 {
3268 return GTKGetLayout(m_widget);
3269 }
3270
3271 void wxWindowGTK::SetLayoutDirection(wxLayoutDirection dir)
3272 {
3273 if ( dir == wxLayout_Default )
3274 {
3275 const wxWindow *const parent = GetParent();
3276 if ( parent )
3277 {
3278 // inherit layout from parent.
3279 dir = parent->GetLayoutDirection();
3280 }
3281 else // no parent, use global default layout
3282 {
3283 dir = wxTheApp->GetLayoutDirection();
3284 }
3285 }
3286
3287 if ( dir == wxLayout_Default )
3288 return;
3289
3290 GTKSetLayout(m_widget, dir);
3291
3292 if (m_wxwindow && (m_wxwindow != m_widget))
3293 GTKSetLayout(m_wxwindow, dir);
3294 }
3295
3296 wxCoord
3297 wxWindowGTK::AdjustForLayoutDirection(wxCoord x,
3298 wxCoord WXUNUSED(width),
3299 wxCoord WXUNUSED(widthTotal)) const
3300 {
3301 // We now mirror the coordinates of RTL windows in wxPizza
3302 return x;
3303 }
3304
3305 void wxWindowGTK::DoMoveInTabOrder(wxWindow *win, WindowOrder move)
3306 {
3307 wxWindowBase::DoMoveInTabOrder(win, move);
3308 m_dirtyTabOrder = true;
3309 wxTheApp->WakeUpIdle();
3310 }
3311
3312 bool wxWindowGTK::DoNavigateIn(int flags)
3313 {
3314 if ( flags & wxNavigationKeyEvent::WinChange )
3315 {
3316 wxFAIL_MSG( wxT("not implemented") );
3317
3318 return false;
3319 }
3320 else // navigate inside the container
3321 {
3322 wxWindow *parent = wxGetTopLevelParent((wxWindow *)this);
3323 wxCHECK_MSG( parent, false, wxT("every window must have a TLW parent") );
3324
3325 GtkDirectionType dir;
3326 dir = flags & wxNavigationKeyEvent::IsForward ? GTK_DIR_TAB_FORWARD
3327 : GTK_DIR_TAB_BACKWARD;
3328
3329 gboolean rc;
3330 g_signal_emit_by_name(parent->m_widget, "focus", dir, &rc);
3331
3332 return rc == TRUE;
3333 }
3334 }
3335
3336 bool wxWindowGTK::GTKWidgetNeedsMnemonic() const
3337 {
3338 // none needed by default
3339 return false;
3340 }
3341
3342 void wxWindowGTK::GTKWidgetDoSetMnemonic(GtkWidget* WXUNUSED(w))
3343 {
3344 // nothing to do by default since none is needed
3345 }
3346
3347 void wxWindowGTK::RealizeTabOrder()
3348 {
3349 if (m_wxwindow)
3350 {
3351 if ( !m_children.empty() )
3352 {
3353 // we don't only construct the correct focus chain but also use
3354 // this opportunity to update the mnemonic widgets for the widgets
3355 // that need them
3356
3357 GList *chain = NULL;
3358 wxWindowGTK* mnemonicWindow = NULL;
3359
3360 for ( wxWindowList::const_iterator i = m_children.begin();
3361 i != m_children.end();
3362 ++i )
3363 {
3364 wxWindowGTK *win = *i;
3365
3366 if ( mnemonicWindow )
3367 {
3368 if ( win->AcceptsFocusFromKeyboard() )
3369 {
3370 // wxComboBox et al. needs to focus on on a different
3371 // widget than m_widget, so if the main widget isn't
3372 // focusable try the connect widget
3373 GtkWidget* w = win->m_widget;
3374 if ( !GTK_WIDGET_CAN_FOCUS(w) )
3375 {
3376 w = win->GetConnectWidget();
3377 if ( !GTK_WIDGET_CAN_FOCUS(w) )
3378 w = NULL;
3379 }
3380
3381 if ( w )
3382 {
3383 mnemonicWindow->GTKWidgetDoSetMnemonic(w);
3384 mnemonicWindow = NULL;
3385 }
3386 }
3387 }
3388 else if ( win->GTKWidgetNeedsMnemonic() )
3389 {
3390 mnemonicWindow = win;
3391 }
3392
3393 chain = g_list_prepend(chain, win->m_widget);
3394 }
3395
3396 chain = g_list_reverse(chain);
3397
3398 gtk_container_set_focus_chain(GTK_CONTAINER(m_wxwindow), chain);
3399 g_list_free(chain);
3400 }
3401 else // no children
3402 {
3403 gtk_container_unset_focus_chain(GTK_CONTAINER(m_wxwindow));
3404 }
3405 }
3406 }
3407
3408 void wxWindowGTK::Raise()
3409 {
3410 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3411
3412 if (m_wxwindow && m_wxwindow->window)
3413 {
3414 gdk_window_raise( m_wxwindow->window );
3415 }
3416 else if (m_widget->window)
3417 {
3418 gdk_window_raise( m_widget->window );
3419 }
3420 }
3421
3422 void wxWindowGTK::Lower()
3423 {
3424 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3425
3426 if (m_wxwindow && m_wxwindow->window)
3427 {
3428 gdk_window_lower( m_wxwindow->window );
3429 }
3430 else if (m_widget->window)
3431 {
3432 gdk_window_lower( m_widget->window );
3433 }
3434 }
3435
3436 bool wxWindowGTK::SetCursor( const wxCursor &cursor )
3437 {
3438 if ( !wxWindowBase::SetCursor(cursor.Ok() ? cursor : *wxSTANDARD_CURSOR) )
3439 return false;
3440
3441 GTKUpdateCursor();
3442
3443 return true;
3444 }
3445
3446 void wxWindowGTK::GTKUpdateCursor()
3447 {
3448 wxCursor cursor(g_globalCursor.Ok() ? g_globalCursor : GetCursor());
3449 if ( cursor.Ok() )
3450 {
3451 wxArrayGdkWindows windowsThis;
3452 GdkWindow * const winThis = GTKGetWindow(windowsThis);
3453 if ( winThis )
3454 {
3455 gdk_window_set_cursor(winThis, cursor.GetCursor());
3456 }
3457 else
3458 {
3459 const size_t count = windowsThis.size();
3460 for ( size_t n = 0; n < count; n++ )
3461 {
3462 GdkWindow *win = windowsThis[n];
3463 if ( !win )
3464 {
3465 wxFAIL_MSG(wxT("NULL window returned by GTKGetWindow()?"));
3466 continue;
3467 }
3468
3469 gdk_window_set_cursor(win, cursor.GetCursor());
3470 }
3471 }
3472 }
3473 }
3474
3475 void wxWindowGTK::WarpPointer( int x, int y )
3476 {
3477 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3478
3479 // We provide this function ourselves as it is
3480 // missing in GDK (top of this file).
3481
3482 GdkWindow *window = NULL;
3483 if (m_wxwindow)
3484 window = m_wxwindow->window;
3485 else
3486 window = GetConnectWidget()->window;
3487
3488 if (window)
3489 gdk_window_warp_pointer( window, x, y );
3490 }
3491
3492 wxWindowGTK::ScrollDir wxWindowGTK::ScrollDirFromRange(GtkRange *range) const
3493 {
3494 // find the scrollbar which generated the event
3495 for ( int dir = 0; dir < ScrollDir_Max; dir++ )
3496 {
3497 if ( range == m_scrollBar[dir] )
3498 return (ScrollDir)dir;
3499 }
3500
3501 wxFAIL_MSG( wxT("event from unknown scrollbar received") );
3502
3503 return ScrollDir_Max;
3504 }
3505
3506 bool wxWindowGTK::DoScrollByUnits(ScrollDir dir, ScrollUnit unit, int units)
3507 {
3508 bool changed = false;
3509 GtkRange* range = m_scrollBar[dir];
3510 if ( range && units )
3511 {
3512 GtkAdjustment* adj = range->adjustment;
3513 gdouble inc = unit == ScrollUnit_Line ? adj->step_increment
3514 : adj->page_increment;
3515
3516 const int posOld = int(adj->value + 0.5);
3517 gtk_range_set_value(range, posOld + units*inc);
3518
3519 changed = int(adj->value + 0.5) != posOld;
3520 }
3521
3522 return changed;
3523 }
3524
3525 bool wxWindowGTK::ScrollLines(int lines)
3526 {
3527 return DoScrollByUnits(ScrollDir_Vert, ScrollUnit_Line, lines);
3528 }
3529
3530 bool wxWindowGTK::ScrollPages(int pages)
3531 {
3532 return DoScrollByUnits(ScrollDir_Vert, ScrollUnit_Page, pages);
3533 }
3534
3535 void wxWindowGTK::Refresh(bool WXUNUSED(eraseBackground),
3536 const wxRect *rect)
3537 {
3538 if ( !m_widget )
3539 {
3540 // it is valid to call Refresh() for a window which hasn't been created
3541 // yet, it simply doesn't do anything in this case
3542 return;
3543 }
3544
3545 if (!m_wxwindow)
3546 {
3547 if (rect)
3548 gtk_widget_queue_draw_area( m_widget, rect->x, rect->y, rect->width, rect->height );
3549 else
3550 gtk_widget_queue_draw( m_widget );
3551 }
3552 else
3553 {
3554 // Just return if the widget or one of its ancestors isn't mapped
3555 GtkWidget *w;
3556 for (w = m_wxwindow; w != NULL; w = w->parent)
3557 if (!GTK_WIDGET_MAPPED (w))
3558 return;
3559
3560 if (rect)
3561 {
3562 int x = rect->x;
3563 if (GetLayoutDirection() == wxLayout_RightToLeft)
3564 x = GetClientSize().x - x - rect->width;
3565 GdkRectangle r;
3566 r.x = rect->x;
3567 r.y = rect->y;
3568 r.width = rect->width;
3569 r.height = rect->height;
3570 gdk_window_invalidate_rect( m_wxwindow->window, &r, TRUE );
3571 }
3572 else
3573 gdk_window_invalidate_rect( m_wxwindow->window, NULL, TRUE );
3574 }
3575 }
3576
3577 void wxWindowGTK::Update()
3578 {
3579 if (m_widget && m_widget->window)
3580 {
3581 GdkDisplay* display = gtk_widget_get_display(m_widget);
3582 // Flush everything out to the server, and wait for it to finish.
3583 // This ensures nothing will overwrite the drawing we are about to do.
3584 gdk_display_sync(display);
3585
3586 gdk_window_process_updates(m_widget->window, TRUE);
3587
3588 // Flush again, but no need to wait for it to finish
3589 gdk_display_flush(display);
3590 }
3591 }
3592
3593 bool wxWindowGTK::DoIsExposed( int x, int y ) const
3594 {
3595 return m_updateRegion.Contains(x, y) != wxOutRegion;
3596 }
3597
3598 bool wxWindowGTK::DoIsExposed( int x, int y, int w, int h ) const
3599 {
3600 if (GetLayoutDirection() == wxLayout_RightToLeft)
3601 return m_updateRegion.Contains(x-w, y, w, h) != wxOutRegion;
3602 else
3603 return m_updateRegion.Contains(x, y, w, h) != wxOutRegion;
3604 }
3605
3606 void wxWindowGTK::GtkSendPaintEvents()
3607 {
3608 if (!m_wxwindow)
3609 {
3610 m_updateRegion.Clear();
3611 return;
3612 }
3613
3614 // Clip to paint region in wxClientDC
3615 m_clipPaintRegion = true;
3616
3617 m_nativeUpdateRegion = m_updateRegion;
3618
3619 if (GetLayoutDirection() == wxLayout_RightToLeft)
3620 {
3621 // Transform m_updateRegion under RTL
3622 m_updateRegion.Clear();
3623
3624 gint width;
3625 gdk_drawable_get_size(m_wxwindow->window, &width, NULL);
3626
3627 wxRegionIterator upd( m_nativeUpdateRegion );
3628 while (upd)
3629 {
3630 wxRect rect;
3631 rect.x = upd.GetX();
3632 rect.y = upd.GetY();
3633 rect.width = upd.GetWidth();
3634 rect.height = upd.GetHeight();
3635
3636 rect.x = width - rect.x - rect.width;
3637 m_updateRegion.Union( rect );
3638
3639 ++upd;
3640 }
3641 }
3642
3643 switch ( GetBackgroundStyle() )
3644 {
3645 case wxBG_STYLE_ERASE:
3646 {
3647 wxWindowDC dc( (wxWindow*)this );
3648 dc.SetDeviceClippingRegion( m_updateRegion );
3649
3650 // Work around gtk-qt <= 0.60 bug whereby the window colour
3651 // remains grey
3652 if ( UseBgCol() &&
3653 wxSystemOptions::
3654 GetOptionInt("gtk.window.force-background-colour") )
3655 {
3656 dc.SetBackground(GetBackgroundColour());
3657 dc.Clear();
3658 }
3659
3660 wxEraseEvent erase_event( GetId(), &dc );
3661 erase_event.SetEventObject( this );
3662
3663 if ( HandleWindowEvent(erase_event) )
3664 {
3665 // background erased, don't do it again
3666 break;
3667 }
3668 }
3669 // fall through
3670
3671 case wxBG_STYLE_SYSTEM:
3672 if ( GetThemeEnabled() )
3673 {
3674 // find ancestor from which to steal background
3675 wxWindow *parent = wxGetTopLevelParent((wxWindow *)this);
3676 if (!parent)
3677 parent = (wxWindow*)this;
3678
3679 if (GTK_WIDGET_MAPPED(parent->m_widget))
3680 {
3681 wxRegionIterator upd( m_nativeUpdateRegion );
3682 while (upd)
3683 {
3684 GdkRectangle rect;
3685 rect.x = upd.GetX();
3686 rect.y = upd.GetY();
3687 rect.width = upd.GetWidth();
3688 rect.height = upd.GetHeight();
3689
3690 gtk_paint_flat_box( parent->m_widget->style,
3691 m_wxwindow->window,
3692 (GtkStateType)GTK_WIDGET_STATE(m_wxwindow),
3693 GTK_SHADOW_NONE,
3694 &rect,
3695 parent->m_widget,
3696 (char *)"base",
3697 0, 0, -1, -1 );
3698
3699 ++upd;
3700 }
3701 }
3702 }
3703 break;
3704
3705 case wxBG_STYLE_PAINT:
3706 // nothing to do: window will be painted over in EVT_PAINT
3707 break;
3708
3709 default:
3710 wxFAIL_MSG( "unsupported background style" );
3711 }
3712
3713 wxNcPaintEvent nc_paint_event( GetId() );
3714 nc_paint_event.SetEventObject( this );
3715 HandleWindowEvent( nc_paint_event );
3716
3717 wxPaintEvent paint_event( GetId() );
3718 paint_event.SetEventObject( this );
3719 HandleWindowEvent( paint_event );
3720
3721 m_clipPaintRegion = false;
3722
3723 m_updateRegion.Clear();
3724 m_nativeUpdateRegion.Clear();
3725 }
3726
3727 void wxWindowGTK::SetDoubleBuffered( bool on )
3728 {
3729 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3730
3731 if ( m_wxwindow )
3732 gtk_widget_set_double_buffered( m_wxwindow, on );
3733 }
3734
3735 bool wxWindowGTK::IsDoubleBuffered() const
3736 {
3737 return GTK_WIDGET_DOUBLE_BUFFERED( m_wxwindow );
3738 }
3739
3740 void wxWindowGTK::ClearBackground()
3741 {
3742 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
3743 }
3744
3745 #if wxUSE_TOOLTIPS
3746 void wxWindowGTK::DoSetToolTip( wxToolTip *tip )
3747 {
3748 wxWindowBase::DoSetToolTip(tip);
3749
3750 if (m_tooltip)
3751 {
3752 m_tooltip->GTKApply( (wxWindow *)this );
3753 }
3754 else
3755 {
3756 GtkWidget *w = GetConnectWidget();
3757 wxToolTip::GTKApply(w, NULL);
3758 #if GTK_CHECK_VERSION(2, 12, 0)
3759 // Just applying NULL doesn't work on 2.12.0, so also use
3760 // gtk_widget_set_has_tooltip. It is part of the new GtkTooltip API
3761 // but seems also to work with the old GtkTooltips.
3762 if (gtk_check_version(2, 12, 0) == NULL)
3763 gtk_widget_set_has_tooltip(w, FALSE);
3764 #endif
3765 }
3766 }
3767
3768 void wxWindowGTK::GTKApplyToolTip( GtkTooltips *tips, const gchar *tip )
3769 {
3770 gtk_tooltips_set_tip(tips, GetConnectWidget(), tip, NULL);
3771 }
3772 #endif // wxUSE_TOOLTIPS
3773
3774 bool wxWindowGTK::SetBackgroundColour( const wxColour &colour )
3775 {
3776 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
3777
3778 if (!wxWindowBase::SetBackgroundColour(colour))
3779 return false;
3780
3781 if (colour.Ok())
3782 {
3783 // We need the pixel value e.g. for background clearing.
3784 m_backgroundColour.CalcPixel(gtk_widget_get_colormap(m_widget));
3785 }
3786
3787 // apply style change (forceStyle=true so that new style is applied
3788 // even if the bg colour changed from valid to wxNullColour)
3789 GTKApplyWidgetStyle(true);
3790
3791 return true;
3792 }
3793
3794 bool wxWindowGTK::SetForegroundColour( const wxColour &colour )
3795 {
3796 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
3797
3798 if (!wxWindowBase::SetForegroundColour(colour))
3799 {
3800 return false;
3801 }
3802
3803 if (colour.Ok())
3804 {
3805 // We need the pixel value e.g. for background clearing.
3806 m_foregroundColour.CalcPixel(gtk_widget_get_colormap(m_widget));
3807 }
3808
3809 // apply style change (forceStyle=true so that new style is applied
3810 // even if the bg colour changed from valid to wxNullColour):
3811 GTKApplyWidgetStyle(true);
3812
3813 return true;
3814 }
3815
3816 PangoContext *wxWindowGTK::GTKGetPangoDefaultContext()
3817 {
3818 return gtk_widget_get_pango_context( m_widget );
3819 }
3820
3821 GtkRcStyle *wxWindowGTK::GTKCreateWidgetStyle(bool forceStyle)
3822 {
3823 // do we need to apply any changes at all?
3824 if ( !forceStyle &&
3825 !m_font.Ok() &&
3826 !m_foregroundColour.Ok() && !m_backgroundColour.Ok() )
3827 {
3828 return NULL;
3829 }
3830
3831 GtkRcStyle *style = gtk_rc_style_new();
3832
3833 if ( m_font.Ok() )
3834 {
3835 style->font_desc =
3836 pango_font_description_copy( m_font.GetNativeFontInfo()->description );
3837 }
3838
3839 int flagsNormal = 0,
3840 flagsPrelight = 0,
3841 flagsActive = 0,
3842 flagsInsensitive = 0;
3843
3844 if ( m_foregroundColour.Ok() )
3845 {
3846 const GdkColor *fg = m_foregroundColour.GetColor();
3847
3848 style->fg[GTK_STATE_NORMAL] =
3849 style->text[GTK_STATE_NORMAL] = *fg;
3850 flagsNormal |= GTK_RC_FG | GTK_RC_TEXT;
3851
3852 style->fg[GTK_STATE_PRELIGHT] =
3853 style->text[GTK_STATE_PRELIGHT] = *fg;
3854 flagsPrelight |= GTK_RC_FG | GTK_RC_TEXT;
3855
3856 style->fg[GTK_STATE_ACTIVE] =
3857 style->text[GTK_STATE_ACTIVE] = *fg;
3858 flagsActive |= GTK_RC_FG | GTK_RC_TEXT;
3859 }
3860
3861 if ( m_backgroundColour.Ok() )
3862 {
3863 const GdkColor *bg = m_backgroundColour.GetColor();
3864
3865 style->bg[GTK_STATE_NORMAL] =
3866 style->base[GTK_STATE_NORMAL] = *bg;
3867 flagsNormal |= GTK_RC_BG | GTK_RC_BASE;
3868
3869 style->bg[GTK_STATE_PRELIGHT] =
3870 style->base[GTK_STATE_PRELIGHT] = *bg;
3871 flagsPrelight |= GTK_RC_BG | GTK_RC_BASE;
3872
3873 style->bg[GTK_STATE_ACTIVE] =
3874 style->base[GTK_STATE_ACTIVE] = *bg;
3875 flagsActive |= GTK_RC_BG | GTK_RC_BASE;
3876
3877 style->bg[GTK_STATE_INSENSITIVE] =
3878 style->base[GTK_STATE_INSENSITIVE] = *bg;
3879 flagsInsensitive |= GTK_RC_BG | GTK_RC_BASE;
3880 }
3881
3882 style->color_flags[GTK_STATE_NORMAL] = (GtkRcFlags)flagsNormal;
3883 style->color_flags[GTK_STATE_PRELIGHT] = (GtkRcFlags)flagsPrelight;
3884 style->color_flags[GTK_STATE_ACTIVE] = (GtkRcFlags)flagsActive;
3885 style->color_flags[GTK_STATE_INSENSITIVE] = (GtkRcFlags)flagsInsensitive;
3886
3887 return style;
3888 }
3889
3890 void wxWindowGTK::GTKApplyWidgetStyle(bool forceStyle)
3891 {
3892 GtkRcStyle *style = GTKCreateWidgetStyle(forceStyle);
3893 if ( style )
3894 {
3895 DoApplyWidgetStyle(style);
3896 gtk_rc_style_unref(style);
3897 }
3898
3899 // Style change may affect GTK+'s size calculation:
3900 InvalidateBestSize();
3901 }
3902
3903 void wxWindowGTK::DoApplyWidgetStyle(GtkRcStyle *style)
3904 {
3905 wxSuspendStyleEvents s(static_cast<wxWindow*>(this));
3906
3907 if (m_wxwindow)
3908 gtk_widget_modify_style(m_wxwindow, style);
3909 else
3910 gtk_widget_modify_style(m_widget, style);
3911 }
3912
3913 bool wxWindowGTK::SetBackgroundStyle(wxBackgroundStyle style)
3914 {
3915 wxWindowBase::SetBackgroundStyle(style);
3916
3917 if ( style == wxBG_STYLE_PAINT )
3918 {
3919 GdkWindow *window;
3920 if ( m_wxwindow )
3921 {
3922 window = m_wxwindow->window;
3923 }
3924 else
3925 {
3926 GtkWidget * const w = GetConnectWidget();
3927 window = w ? w->window : NULL;
3928 }
3929
3930 if (window)
3931 {
3932 // Make sure GDK/X11 doesn't refresh the window
3933 // automatically.
3934 gdk_window_set_back_pixmap( window, None, False );
3935 #ifdef __X__
3936 Display* display = GDK_WINDOW_DISPLAY(window);
3937 XFlush(display);
3938 #endif
3939 m_needsStyleChange = false;
3940 }
3941 else // window not realized yet
3942 {
3943 // Do in OnIdle, because the window is not yet available
3944 m_needsStyleChange = true;
3945 }
3946
3947 // Don't apply widget style, or we get a grey background
3948 }
3949 else
3950 {
3951 // apply style change (forceStyle=true so that new style is applied
3952 // even if the bg colour changed from valid to wxNullColour):
3953 GTKApplyWidgetStyle(true);
3954 }
3955
3956 return true;
3957 }
3958
3959 // ----------------------------------------------------------------------------
3960 // Pop-up menu stuff
3961 // ----------------------------------------------------------------------------
3962
3963 #if wxUSE_MENUS_NATIVE
3964
3965 static void SetInvokingWindow( wxMenu *menu, wxWindow* win )
3966 {
3967 menu->SetInvokingWindow( win );
3968
3969 wxMenuItemList::compatibility_iterator node = menu->GetMenuItems().GetFirst();
3970 while (node)
3971 {
3972 wxMenuItem *menuitem = node->GetData();
3973 if (menuitem->IsSubMenu())
3974 {
3975 SetInvokingWindow( menuitem->GetSubMenu(), win );
3976 }
3977
3978 node = node->GetNext();
3979 }
3980 }
3981
3982 extern "C" {
3983 static
3984 void wxPopupMenuPositionCallback( GtkMenu *menu,
3985 gint *x, gint *y,
3986 gboolean * WXUNUSED(whatever),
3987 gpointer user_data )
3988 {
3989 // ensure that the menu appears entirely on screen
3990 GtkRequisition req;
3991 gtk_widget_get_child_requisition(GTK_WIDGET(menu), &req);
3992
3993 wxSize sizeScreen = wxGetDisplaySize();
3994 wxPoint *pos = (wxPoint*)user_data;
3995
3996 gint xmax = sizeScreen.x - req.width,
3997 ymax = sizeScreen.y - req.height;
3998
3999 *x = pos->x < xmax ? pos->x : xmax;
4000 *y = pos->y < ymax ? pos->y : ymax;
4001 }
4002 }
4003
4004 bool wxWindowGTK::DoPopupMenu( wxMenu *menu, int x, int y )
4005 {
4006 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
4007
4008 wxCHECK_MSG( menu != NULL, false, wxT("invalid popup-menu") );
4009
4010 SetInvokingWindow( menu, this );
4011
4012 menu->UpdateUI();
4013
4014 wxPoint pos;
4015 gpointer userdata;
4016 GtkMenuPositionFunc posfunc;
4017 if ( x == -1 && y == -1 )
4018 {
4019 // use GTK's default positioning algorithm
4020 userdata = NULL;
4021 posfunc = NULL;
4022 }
4023 else
4024 {
4025 pos = ClientToScreen(wxPoint(x, y));
4026 userdata = &pos;
4027 posfunc = wxPopupMenuPositionCallback;
4028 }
4029
4030 menu->m_popupShown = true;
4031 gtk_menu_popup(
4032 GTK_MENU(menu->m_menu),
4033 NULL, // parent menu shell
4034 NULL, // parent menu item
4035 posfunc, // function to position it
4036 userdata, // client data
4037 0, // button used to activate it
4038 gtk_get_current_event_time()
4039 );
4040
4041 while (menu->m_popupShown)
4042 {
4043 gtk_main_iteration();
4044 }
4045
4046 return true;
4047 }
4048
4049 #endif // wxUSE_MENUS_NATIVE
4050
4051 #if wxUSE_DRAG_AND_DROP
4052
4053 void wxWindowGTK::SetDropTarget( wxDropTarget *dropTarget )
4054 {
4055 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4056
4057 GtkWidget *dnd_widget = GetConnectWidget();
4058
4059 if (m_dropTarget) m_dropTarget->GtkUnregisterWidget( dnd_widget );
4060
4061 if (m_dropTarget) delete m_dropTarget;
4062 m_dropTarget = dropTarget;
4063
4064 if (m_dropTarget) m_dropTarget->GtkRegisterWidget( dnd_widget );
4065 }
4066
4067 #endif // wxUSE_DRAG_AND_DROP
4068
4069 GtkWidget* wxWindowGTK::GetConnectWidget()
4070 {
4071 GtkWidget *connect_widget = m_widget;
4072 if (m_wxwindow) connect_widget = m_wxwindow;
4073
4074 return connect_widget;
4075 }
4076
4077 bool wxWindowGTK::GTKIsOwnWindow(GdkWindow *window) const
4078 {
4079 wxArrayGdkWindows windowsThis;
4080 GdkWindow * const winThis = GTKGetWindow(windowsThis);
4081
4082 return winThis ? window == winThis
4083 : windowsThis.Index(window) != wxNOT_FOUND;
4084 }
4085
4086 GdkWindow *wxWindowGTK::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
4087 {
4088 return m_wxwindow ? m_wxwindow->window : m_widget->window;
4089 }
4090
4091 bool wxWindowGTK::SetFont( const wxFont &font )
4092 {
4093 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
4094
4095 if (!wxWindowBase::SetFont(font))
4096 return false;
4097
4098 // apply style change (forceStyle=true so that new style is applied
4099 // even if the font changed from valid to wxNullFont):
4100 GTKApplyWidgetStyle(true);
4101
4102 return true;
4103 }
4104
4105 void wxWindowGTK::DoCaptureMouse()
4106 {
4107 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4108
4109 GdkWindow *window = NULL;
4110 if (m_wxwindow)
4111 window = m_wxwindow->window;
4112 else
4113 window = GetConnectWidget()->window;
4114
4115 wxCHECK_RET( window, wxT("CaptureMouse() failed") );
4116
4117 const wxCursor* cursor = &m_cursor;
4118 if (!cursor->Ok())
4119 cursor = wxSTANDARD_CURSOR;
4120
4121 gdk_pointer_grab( window, FALSE,
4122 (GdkEventMask)
4123 (GDK_BUTTON_PRESS_MASK |
4124 GDK_BUTTON_RELEASE_MASK |
4125 GDK_POINTER_MOTION_HINT_MASK |
4126 GDK_POINTER_MOTION_MASK),
4127 NULL,
4128 cursor->GetCursor(),
4129 (guint32)GDK_CURRENT_TIME );
4130 g_captureWindow = this;
4131 g_captureWindowHasMouse = true;
4132 }
4133
4134 void wxWindowGTK::DoReleaseMouse()
4135 {
4136 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4137
4138 wxCHECK_RET( g_captureWindow, wxT("can't release mouse - not captured") );
4139
4140 g_captureWindow = NULL;
4141
4142 GdkWindow *window = NULL;
4143 if (m_wxwindow)
4144 window = m_wxwindow->window;
4145 else
4146 window = GetConnectWidget()->window;
4147
4148 if (!window)
4149 return;
4150
4151 gdk_pointer_ungrab ( (guint32)GDK_CURRENT_TIME );
4152 }
4153
4154 void wxWindowGTK::GTKReleaseMouseAndNotify()
4155 {
4156 DoReleaseMouse();
4157 wxMouseCaptureLostEvent evt(GetId());
4158 evt.SetEventObject( this );
4159 HandleWindowEvent( evt );
4160 }
4161
4162 /* static */
4163 wxWindow *wxWindowBase::GetCapture()
4164 {
4165 return (wxWindow *)g_captureWindow;
4166 }
4167
4168 bool wxWindowGTK::IsRetained() const
4169 {
4170 return false;
4171 }
4172
4173 void wxWindowGTK::SetScrollbar(int orient,
4174 int pos,
4175 int thumbVisible,
4176 int range,
4177 bool WXUNUSED(update))
4178 {
4179 const int dir = ScrollDirFromOrient(orient);
4180 GtkRange* const sb = m_scrollBar[dir];
4181 wxCHECK_RET( sb, wxT("this window is not scrollable") );
4182
4183 if (range <= 0)
4184 {
4185 // GtkRange requires upper > lower
4186 range =
4187 thumbVisible = 1;
4188 }
4189
4190 GtkAdjustment * const adj = sb->adjustment;
4191 adj->step_increment = 1;
4192 adj->page_increment =
4193 adj->page_size = thumbVisible;
4194 adj->value = pos;
4195
4196 g_signal_handlers_block_by_func(
4197 sb, (void*)gtk_scrollbar_value_changed, this);
4198
4199 gtk_range_set_range(sb, 0, range);
4200 m_scrollPos[dir] = sb->adjustment->value;
4201
4202 g_signal_handlers_unblock_by_func(
4203 sb, (void*)gtk_scrollbar_value_changed, this);
4204 }
4205
4206 void wxWindowGTK::SetScrollPos(int orient, int pos, bool WXUNUSED(refresh))
4207 {
4208 const int dir = ScrollDirFromOrient(orient);
4209 GtkRange * const sb = m_scrollBar[dir];
4210 wxCHECK_RET( sb, wxT("this window is not scrollable") );
4211
4212 // This check is more than an optimization. Without it, the slider
4213 // will not move smoothly while tracking when using wxScrollHelper.
4214 if (GetScrollPos(orient) != pos)
4215 {
4216 g_signal_handlers_block_by_func(
4217 sb, (void*)gtk_scrollbar_value_changed, this);
4218
4219 gtk_range_set_value(sb, pos);
4220 m_scrollPos[dir] = sb->adjustment->value;
4221
4222 g_signal_handlers_unblock_by_func(
4223 sb, (void*)gtk_scrollbar_value_changed, this);
4224 }
4225 }
4226
4227 int wxWindowGTK::GetScrollThumb(int orient) const
4228 {
4229 GtkRange * const sb = m_scrollBar[ScrollDirFromOrient(orient)];
4230 wxCHECK_MSG( sb, 0, wxT("this window is not scrollable") );
4231
4232 return wxRound(sb->adjustment->page_size);
4233 }
4234
4235 int wxWindowGTK::GetScrollPos( int orient ) const
4236 {
4237 GtkRange * const sb = m_scrollBar[ScrollDirFromOrient(orient)];
4238 wxCHECK_MSG( sb, 0, wxT("this window is not scrollable") );
4239
4240 return wxRound(sb->adjustment->value);
4241 }
4242
4243 int wxWindowGTK::GetScrollRange( int orient ) const
4244 {
4245 GtkRange * const sb = m_scrollBar[ScrollDirFromOrient(orient)];
4246 wxCHECK_MSG( sb, 0, wxT("this window is not scrollable") );
4247
4248 return wxRound(sb->adjustment->upper);
4249 }
4250
4251 // Determine if increment is the same as +/-x, allowing for some small
4252 // difference due to possible inexactness in floating point arithmetic
4253 static inline bool IsScrollIncrement(double increment, double x)
4254 {
4255 wxASSERT(increment > 0);
4256 const double tolerance = 1.0 / 1024;
4257 return fabs(increment - fabs(x)) < tolerance;
4258 }
4259
4260 wxEventType wxWindowGTK::GTKGetScrollEventType(GtkRange* range)
4261 {
4262 wxASSERT(range == m_scrollBar[0] || range == m_scrollBar[1]);
4263
4264 const int barIndex = range == m_scrollBar[1];
4265 GtkAdjustment* adj = range->adjustment;
4266
4267 const int value = wxRound(adj->value);
4268
4269 // save previous position
4270 const double oldPos = m_scrollPos[barIndex];
4271 // update current position
4272 m_scrollPos[barIndex] = adj->value;
4273 // If event should be ignored, or integral position has not changed
4274 if (!m_hasVMT || g_blockEventsOnDrag || value == wxRound(oldPos))
4275 {
4276 return wxEVT_NULL;
4277 }
4278
4279 wxEventType eventType = wxEVT_SCROLL_THUMBTRACK;
4280 if (!m_isScrolling)
4281 {
4282 // Difference from last change event
4283 const double diff = adj->value - oldPos;
4284 const bool isDown = diff > 0;
4285
4286 if (IsScrollIncrement(adj->step_increment, diff))
4287 {
4288 eventType = isDown ? wxEVT_SCROLL_LINEDOWN : wxEVT_SCROLL_LINEUP;
4289 }
4290 else if (IsScrollIncrement(adj->page_increment, diff))
4291 {
4292 eventType = isDown ? wxEVT_SCROLL_PAGEDOWN : wxEVT_SCROLL_PAGEUP;
4293 }
4294 else if (m_mouseButtonDown)
4295 {
4296 // Assume track event
4297 m_isScrolling = true;
4298 }
4299 }
4300 return eventType;
4301 }
4302
4303 void wxWindowGTK::ScrollWindow( int dx, int dy, const wxRect* WXUNUSED(rect) )
4304 {
4305 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4306
4307 wxCHECK_RET( m_wxwindow != NULL, wxT("window needs client area for scrolling") );
4308
4309 // No scrolling requested.
4310 if ((dx == 0) && (dy == 0)) return;
4311
4312 m_clipPaintRegion = true;
4313
4314 WX_PIZZA(m_wxwindow)->scroll(dx, dy);
4315
4316 m_clipPaintRegion = false;
4317
4318 #if wxUSE_CARET
4319 bool restoreCaret = (GetCaret() != NULL && GetCaret()->IsVisible());
4320 if (restoreCaret)
4321 {
4322 wxRect caretRect(GetCaret()->GetPosition(), GetCaret()->GetSize());
4323 if (dx > 0)
4324 caretRect.width += dx;
4325 else
4326 {
4327 caretRect.x += dx; caretRect.width -= dx;
4328 }
4329 if (dy > 0)
4330 caretRect.height += dy;
4331 else
4332 {
4333 caretRect.y += dy; caretRect.height -= dy;
4334 }
4335
4336 RefreshRect(caretRect);
4337 }
4338 #endif // wxUSE_CARET
4339 }
4340
4341 void wxWindowGTK::GTKScrolledWindowSetBorder(GtkWidget* w, int wxstyle)
4342 {
4343 //RN: Note that static controls usually have no border on gtk, so maybe
4344 //it makes sense to treat that as simply no border at the wx level
4345 //as well...
4346 if (!(wxstyle & wxNO_BORDER) && !(wxstyle & wxBORDER_STATIC))
4347 {
4348 GtkShadowType gtkstyle;
4349
4350 if(wxstyle & wxBORDER_RAISED)
4351 gtkstyle = GTK_SHADOW_OUT;
4352 else if ((wxstyle & wxBORDER_SUNKEN) || (wxstyle & wxBORDER_THEME))
4353 gtkstyle = GTK_SHADOW_IN;
4354 #if 0
4355 // Now obsolete
4356 else if (wxstyle & wxBORDER_DOUBLE)
4357 gtkstyle = GTK_SHADOW_ETCHED_IN;
4358 #endif
4359 else //default
4360 gtkstyle = GTK_SHADOW_IN;
4361
4362 gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(w),
4363 gtkstyle );
4364 }
4365 }
4366
4367 void wxWindowGTK::SetWindowStyleFlag( long style )
4368 {
4369 // Updates the internal variable. NB: Now m_windowStyle bits carry the _new_ style values already
4370 wxWindowBase::SetWindowStyleFlag(style);
4371 }
4372
4373 // Find the wxWindow at the current mouse position, also returning the mouse
4374 // position.
4375 wxWindow* wxFindWindowAtPointer(wxPoint& pt)
4376 {
4377 pt = wxGetMousePosition();
4378 wxWindow* found = wxFindWindowAtPoint(pt);
4379 return found;
4380 }
4381
4382 // Get the current mouse position.
4383 wxPoint wxGetMousePosition()
4384 {
4385 /* This crashes when used within wxHelpContext,
4386 so we have to use the X-specific implementation below.
4387 gint x, y;
4388 GdkModifierType *mask;
4389 (void) gdk_window_get_pointer(NULL, &x, &y, mask);
4390
4391 return wxPoint(x, y);
4392 */
4393
4394 int x, y;
4395 GdkWindow* windowAtPtr = gdk_window_at_pointer(& x, & y);
4396
4397 Display *display = windowAtPtr ? GDK_WINDOW_XDISPLAY(windowAtPtr) : GDK_DISPLAY();
4398 Window rootWindow = RootWindowOfScreen (DefaultScreenOfDisplay(display));
4399 Window rootReturn, childReturn;
4400 int rootX, rootY, winX, winY;
4401 unsigned int maskReturn;
4402
4403 XQueryPointer (display,
4404 rootWindow,
4405 &rootReturn,
4406 &childReturn,
4407 &rootX, &rootY, &winX, &winY, &maskReturn);
4408 return wxPoint(rootX, rootY);
4409
4410 }
4411
4412 GdkWindow* wxWindowGTK::GTKGetDrawingWindow() const
4413 {
4414 GdkWindow* window = NULL;
4415 if (m_wxwindow)
4416 window = m_wxwindow->window;
4417 return window;
4418 }
4419
4420 // ----------------------------------------------------------------------------
4421 // freeze/thaw
4422 // ----------------------------------------------------------------------------
4423
4424 extern "C"
4425 {
4426
4427 // this is called if we attempted to freeze unrealized widget when it finally
4428 // is realized (and so can be frozen):
4429 static void wx_frozen_widget_realize(GtkWidget* w, void* WXUNUSED(data))
4430 {
4431 wxASSERT( w && !GTK_WIDGET_NO_WINDOW(w) );
4432 wxASSERT( GTK_WIDGET_REALIZED(w) );
4433
4434 g_signal_handlers_disconnect_by_func
4435 (
4436 w,
4437 (void*)wx_frozen_widget_realize,
4438 NULL
4439 );
4440
4441 gdk_window_freeze_updates(w->window);
4442 }
4443
4444 } // extern "C"
4445
4446 void wxWindowGTK::GTKFreezeWidget(GtkWidget *w)
4447 {
4448 if ( !w || GTK_WIDGET_NO_WINDOW(w) )
4449 return; // window-less widget, cannot be frozen
4450
4451 if ( !GTK_WIDGET_REALIZED(w) )
4452 {
4453 // we can't thaw unrealized widgets because they don't have GdkWindow,
4454 // so set it up to be done immediately after realization:
4455 g_signal_connect_after
4456 (
4457 w,
4458 "realize",
4459 G_CALLBACK(wx_frozen_widget_realize),
4460 NULL
4461 );
4462 return;
4463 }
4464
4465 gdk_window_freeze_updates(w->window);
4466 }
4467
4468 void wxWindowGTK::GTKThawWidget(GtkWidget *w)
4469 {
4470 if ( !w || GTK_WIDGET_NO_WINDOW(w) )
4471 return; // window-less widget, cannot be frozen
4472
4473 if ( !GTK_WIDGET_REALIZED(w) )
4474 {
4475 // the widget wasn't realized yet, no need to thaw
4476 g_signal_handlers_disconnect_by_func
4477 (
4478 w,
4479 (void*)wx_frozen_widget_realize,
4480 NULL
4481 );
4482 return;
4483 }
4484
4485 gdk_window_thaw_updates(w->window);
4486 }
4487
4488 void wxWindowGTK::DoFreeze()
4489 {
4490 GTKFreezeWidget(m_widget);
4491 if ( m_wxwindow && m_widget != m_wxwindow )
4492 GTKFreezeWidget(m_wxwindow);
4493 }
4494
4495 void wxWindowGTK::DoThaw()
4496 {
4497 GTKThawWidget(m_widget);
4498 if ( m_wxwindow && m_widget != m_wxwindow )
4499 GTKThawWidget(m_wxwindow);
4500 }
wxWidgets (Impactor)