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Add wxWindowGTK::GTKConnectWidget() helper.
[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 gulong wxWindowGTK::GTKConnectWidget(const char *signal, void (*callback)())
2386 {
2387 return g_signal_connect(m_widget, signal, callback, this);
2388 }
2389
2390 void wxWindowGTK::ConnectWidget( GtkWidget *widget )
2391 {
2392 g_signal_connect (widget, "key_press_event",
2393 G_CALLBACK (gtk_window_key_press_callback), this);
2394 g_signal_connect (widget, "key_release_event",
2395 G_CALLBACK (gtk_window_key_release_callback), this);
2396 g_signal_connect (widget, "button_press_event",
2397 G_CALLBACK (gtk_window_button_press_callback), this);
2398 g_signal_connect (widget, "button_release_event",
2399 G_CALLBACK (gtk_window_button_release_callback), this);
2400 g_signal_connect (widget, "motion_notify_event",
2401 G_CALLBACK (gtk_window_motion_notify_callback), this);
2402
2403 g_signal_connect (widget, "scroll_event",
2404 G_CALLBACK (window_scroll_event), this);
2405 if (m_scrollBar[ScrollDir_Horz])
2406 g_signal_connect (m_scrollBar[ScrollDir_Horz], "scroll_event",
2407 G_CALLBACK (window_scroll_event_hscrollbar), this);
2408 if (m_scrollBar[ScrollDir_Vert])
2409 g_signal_connect (m_scrollBar[ScrollDir_Vert], "scroll_event",
2410 G_CALLBACK (window_scroll_event), this);
2411
2412 g_signal_connect (widget, "popup_menu",
2413 G_CALLBACK (wxgtk_window_popup_menu_callback), this);
2414 g_signal_connect (widget, "enter_notify_event",
2415 G_CALLBACK (gtk_window_enter_callback), this);
2416 g_signal_connect (widget, "leave_notify_event",
2417 G_CALLBACK (gtk_window_leave_callback), this);
2418
2419 if (IsTopLevel() && m_wxwindow)
2420 g_signal_connect (m_wxwindow, "style_set",
2421 G_CALLBACK (gtk_window_style_set_callback), this);
2422 }
2423
2424 bool wxWindowGTK::Destroy()
2425 {
2426 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
2427
2428 m_hasVMT = false;
2429
2430 return wxWindowBase::Destroy();
2431 }
2432
2433 void wxWindowGTK::DoMoveWindow(int x, int y, int width, int height)
2434 {
2435 gtk_widget_set_size_request(m_widget, width, height);
2436
2437 // inform the parent to perform the move
2438 wxASSERT_MSG(m_parent && m_parent->m_wxwindow,
2439 "the parent window has no client area?");
2440 WX_PIZZA(m_parent->m_wxwindow)->move(m_widget, x, y);
2441 }
2442
2443 void wxWindowGTK::ConstrainSize()
2444 {
2445 #ifdef __WXGPE__
2446 // GPE's window manager doesn't like size hints at all, esp. when the user
2447 // has to use the virtual keyboard, so don't constrain size there
2448 if (!IsTopLevel())
2449 #endif
2450 {
2451 const wxSize minSize = GetMinSize();
2452 const wxSize maxSize = GetMaxSize();
2453 if (minSize.x > 0 && m_width < minSize.x) m_width = minSize.x;
2454 if (minSize.y > 0 && m_height < minSize.y) m_height = minSize.y;
2455 if (maxSize.x > 0 && m_width > maxSize.x) m_width = maxSize.x;
2456 if (maxSize.y > 0 && m_height > maxSize.y) m_height = maxSize.y;
2457 }
2458 }
2459
2460 void wxWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags )
2461 {
2462 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
2463 wxASSERT_MSG( (m_parent != NULL), wxT("wxWindowGTK::SetSize requires parent.\n") );
2464
2465 int currentX, currentY;
2466 GetPosition(&currentX, &currentY);
2467 if (x == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2468 x = currentX;
2469 if (y == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2470 y = currentY;
2471 AdjustForParentClientOrigin(x, y, sizeFlags);
2472
2473 // calculate the best size if we should auto size the window
2474 if ( ((sizeFlags & wxSIZE_AUTO_WIDTH) && width == -1) ||
2475 ((sizeFlags & wxSIZE_AUTO_HEIGHT) && height == -1) )
2476 {
2477 const wxSize sizeBest = GetBestSize();
2478 if ( (sizeFlags & wxSIZE_AUTO_WIDTH) && width == -1 )
2479 width = sizeBest.x;
2480 if ( (sizeFlags & wxSIZE_AUTO_HEIGHT) && height == -1 )
2481 height = sizeBest.y;
2482 }
2483
2484 const wxSize oldSize(m_width, m_height);
2485 if (width != -1)
2486 m_width = width;
2487 if (height != -1)
2488 m_height = height;
2489
2490 if (m_parent->m_wxwindow)
2491 {
2492 wxPizza* pizza = WX_PIZZA(m_parent->m_wxwindow);
2493 m_x = x + pizza->m_scroll_x;
2494 m_y = y + pizza->m_scroll_y;
2495
2496 int left_border = 0;
2497 int right_border = 0;
2498 int top_border = 0;
2499 int bottom_border = 0;
2500
2501 /* the default button has a border around it */
2502 if (GTK_WIDGET_CAN_DEFAULT(m_widget))
2503 {
2504 GtkBorder *default_border = NULL;
2505 gtk_widget_style_get( m_widget, "default_border", &default_border, NULL );
2506 if (default_border)
2507 {
2508 left_border += default_border->left;
2509 right_border += default_border->right;
2510 top_border += default_border->top;
2511 bottom_border += default_border->bottom;
2512 gtk_border_free( default_border );
2513 }
2514 }
2515
2516 DoMoveWindow( m_x - left_border,
2517 m_y - top_border,
2518 m_width+left_border+right_border,
2519 m_height+top_border+bottom_border );
2520 }
2521
2522 if (m_width != oldSize.x || m_height != oldSize.y)
2523 {
2524 // update these variables to keep size_allocate handler
2525 // from sending another size event for this change
2526 GetClientSize( &m_oldClientWidth, &m_oldClientHeight );
2527
2528 gtk_widget_queue_resize(m_widget);
2529 if (!m_nativeSizeEvent)
2530 {
2531 wxSizeEvent event( wxSize(m_width,m_height), GetId() );
2532 event.SetEventObject( this );
2533 HandleWindowEvent( event );
2534 }
2535 } else
2536 if (sizeFlags & wxSIZE_FORCE_EVENT)
2537 {
2538 wxSizeEvent event( wxSize(m_width,m_height), GetId() );
2539 event.SetEventObject( this );
2540 HandleWindowEvent( event );
2541 }
2542 }
2543
2544 bool wxWindowGTK::GTKShowFromOnIdle()
2545 {
2546 if (IsShown() && m_showOnIdle && !GTK_WIDGET_VISIBLE (m_widget))
2547 {
2548 GtkAllocation alloc;
2549 alloc.x = m_x;
2550 alloc.y = m_y;
2551 alloc.width = m_width;
2552 alloc.height = m_height;
2553 gtk_widget_size_allocate( m_widget, &alloc );
2554 gtk_widget_show( m_widget );
2555 wxShowEvent eventShow(GetId(), true);
2556 eventShow.SetEventObject(this);
2557 HandleWindowEvent(eventShow);
2558 m_showOnIdle = false;
2559 return true;
2560 }
2561
2562 return false;
2563 }
2564
2565 void wxWindowGTK::OnInternalIdle()
2566 {
2567 if ( gs_deferredFocusOut )
2568 GTKHandleDeferredFocusOut();
2569
2570 // Check if we have to show window now
2571 if (GTKShowFromOnIdle()) return;
2572
2573 if ( m_dirtyTabOrder )
2574 {
2575 m_dirtyTabOrder = false;
2576 RealizeTabOrder();
2577 }
2578
2579 // Update style if the window was not yet realized when
2580 // SetBackgroundStyle() was called
2581 if (m_needsStyleChange)
2582 {
2583 SetBackgroundStyle(GetBackgroundStyle());
2584 m_needsStyleChange = false;
2585 }
2586
2587 wxCursor cursor = m_cursor;
2588 if (g_globalCursor.Ok()) cursor = g_globalCursor;
2589
2590 if (cursor.Ok())
2591 {
2592 /* I now set the cursor anew in every OnInternalIdle call
2593 as setting the cursor in a parent window also effects the
2594 windows above so that checking for the current cursor is
2595 not possible. */
2596
2597 if (m_wxwindow && (m_wxwindow != m_widget))
2598 {
2599 GdkWindow *window = m_wxwindow->window;
2600 if (window)
2601 gdk_window_set_cursor( window, cursor.GetCursor() );
2602
2603 if (!g_globalCursor.Ok())
2604 cursor = *wxSTANDARD_CURSOR;
2605
2606 window = m_widget->window;
2607 if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
2608 gdk_window_set_cursor( window, cursor.GetCursor() );
2609
2610 }
2611 else if ( m_widget )
2612 {
2613 GdkWindow *window = m_widget->window;
2614 if ( window && !GTK_WIDGET_NO_WINDOW(m_widget) )
2615 gdk_window_set_cursor( window, cursor.GetCursor() );
2616 }
2617 }
2618
2619 if (wxUpdateUIEvent::CanUpdate(this) && IsShownOnScreen())
2620 UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
2621 }
2622
2623 void wxWindowGTK::DoGetSize( int *width, int *height ) const
2624 {
2625 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2626
2627 if (width) (*width) = m_width;
2628 if (height) (*height) = m_height;
2629 }
2630
2631 void wxWindowGTK::DoSetClientSize( int width, int height )
2632 {
2633 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2634
2635 const wxSize size = GetSize();
2636 const wxSize clientSize = GetClientSize();
2637 SetSize(width + (size.x - clientSize.x), height + (size.y - clientSize.y));
2638 }
2639
2640 void wxWindowGTK::DoGetClientSize( int *width, int *height ) const
2641 {
2642 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2643
2644 int w = m_width;
2645 int h = m_height;
2646
2647 if ( m_wxwindow )
2648 {
2649 // if window is scrollable, account for scrollbars
2650 if ( GTK_IS_SCROLLED_WINDOW(m_widget) )
2651 {
2652 GtkPolicyType policy[ScrollDir_Max];
2653 gtk_scrolled_window_get_policy(GTK_SCROLLED_WINDOW(m_widget),
2654 &policy[ScrollDir_Horz],
2655 &policy[ScrollDir_Vert]);
2656
2657 for ( int i = 0; i < ScrollDir_Max; i++ )
2658 {
2659 // don't account for the scrollbars we don't have
2660 GtkRange * const range = m_scrollBar[i];
2661 if ( !range )
2662 continue;
2663
2664 // nor for the ones we have but don't current show
2665 switch ( policy[i] )
2666 {
2667 case GTK_POLICY_NEVER:
2668 // never shown so doesn't take any place
2669 continue;
2670
2671 case GTK_POLICY_ALWAYS:
2672 // no checks necessary
2673 break;
2674
2675 case GTK_POLICY_AUTOMATIC:
2676 // may be shown or not, check
2677 GtkAdjustment *adj = gtk_range_get_adjustment(range);
2678 if ( adj->upper <= adj->page_size )
2679 continue;
2680 }
2681
2682 GtkScrolledWindowClass *scroll_class =
2683 GTK_SCROLLED_WINDOW_CLASS( GTK_OBJECT_GET_CLASS(m_widget) );
2684
2685 GtkRequisition req;
2686 gtk_widget_size_request(GTK_WIDGET(range), &req);
2687 if (i == ScrollDir_Horz)
2688 h -= req.height + scroll_class->scrollbar_spacing;
2689 else
2690 w -= req.width + scroll_class->scrollbar_spacing;
2691 }
2692 }
2693
2694 int border_x, border_y;
2695 WX_PIZZA(m_wxwindow)->get_border_widths(border_x, border_y);
2696 w -= 2 * border_x;
2697 h -= 2 * border_y;
2698
2699 if (w < 0)
2700 w = 0;
2701 if (h < 0)
2702 h = 0;
2703 }
2704
2705 if (width) *width = w;
2706 if (height) *height = h;
2707 }
2708
2709 void wxWindowGTK::DoGetPosition( int *x, int *y ) const
2710 {
2711 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2712
2713 int dx = 0;
2714 int dy = 0;
2715 if (!IsTopLevel() && m_parent && m_parent->m_wxwindow)
2716 {
2717 wxPizza* pizza = WX_PIZZA(m_parent->m_wxwindow);
2718 dx = pizza->m_scroll_x;
2719 dy = pizza->m_scroll_y;
2720 }
2721
2722 if (m_x == -1 && m_y == -1)
2723 {
2724 GdkWindow *source = NULL;
2725 if (m_wxwindow)
2726 source = m_wxwindow->window;
2727 else
2728 source = m_widget->window;
2729
2730 if (source)
2731 {
2732 int org_x = 0;
2733 int org_y = 0;
2734 gdk_window_get_origin( source, &org_x, &org_y );
2735
2736 if (m_parent)
2737 m_parent->ScreenToClient(&org_x, &org_y);
2738
2739 const_cast<wxWindowGTK*>(this)->m_x = org_x;
2740 const_cast<wxWindowGTK*>(this)->m_y = org_y;
2741 }
2742 }
2743
2744 if (x) (*x) = m_x - dx;
2745 if (y) (*y) = m_y - dy;
2746 }
2747
2748 void wxWindowGTK::DoClientToScreen( int *x, int *y ) const
2749 {
2750 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2751
2752 if (!m_widget->window) return;
2753
2754 GdkWindow *source = NULL;
2755 if (m_wxwindow)
2756 source = m_wxwindow->window;
2757 else
2758 source = m_widget->window;
2759
2760 int org_x = 0;
2761 int org_y = 0;
2762 gdk_window_get_origin( source, &org_x, &org_y );
2763
2764 if (!m_wxwindow)
2765 {
2766 if (GTK_WIDGET_NO_WINDOW (m_widget))
2767 {
2768 org_x += m_widget->allocation.x;
2769 org_y += m_widget->allocation.y;
2770 }
2771 }
2772
2773
2774 if (x)
2775 {
2776 if (GetLayoutDirection() == wxLayout_RightToLeft)
2777 *x = (GetClientSize().x - *x) + org_x;
2778 else
2779 *x += org_x;
2780 }
2781
2782 if (y) *y += org_y;
2783 }
2784
2785 void wxWindowGTK::DoScreenToClient( int *x, int *y ) const
2786 {
2787 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2788
2789 if (!m_widget->window) return;
2790
2791 GdkWindow *source = NULL;
2792 if (m_wxwindow)
2793 source = m_wxwindow->window;
2794 else
2795 source = m_widget->window;
2796
2797 int org_x = 0;
2798 int org_y = 0;
2799 gdk_window_get_origin( source, &org_x, &org_y );
2800
2801 if (!m_wxwindow)
2802 {
2803 if (GTK_WIDGET_NO_WINDOW (m_widget))
2804 {
2805 org_x += m_widget->allocation.x;
2806 org_y += m_widget->allocation.y;
2807 }
2808 }
2809
2810 if (x)
2811 {
2812 if (GetLayoutDirection() == wxLayout_RightToLeft)
2813 *x = (GetClientSize().x - *x) - org_x;
2814 else
2815 *x -= org_x;
2816 }
2817 if (y) *y -= org_y;
2818 }
2819
2820 bool wxWindowGTK::Show( bool show )
2821 {
2822 if ( !wxWindowBase::Show(show) )
2823 {
2824 // nothing to do
2825 return false;
2826 }
2827
2828 // notice that we may call Hide() before the window is created and this is
2829 // actually useful to create it hidden initially -- but we can't call
2830 // Show() before it is created
2831 if ( !m_widget )
2832 {
2833 wxASSERT_MSG( !show, "can't show invalid window" );
2834 return true;
2835 }
2836
2837 if ( show )
2838 {
2839 if ( m_showOnIdle )
2840 {
2841 // defer until later
2842 return true;
2843 }
2844
2845 gtk_widget_show(m_widget);
2846 }
2847 else // hide
2848 {
2849 gtk_widget_hide(m_widget);
2850 }
2851
2852 wxShowEvent eventShow(GetId(), show);
2853 eventShow.SetEventObject(this);
2854 HandleWindowEvent(eventShow);
2855
2856 return true;
2857 }
2858
2859 void wxWindowGTK::DoEnable( bool enable )
2860 {
2861 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2862
2863 gtk_widget_set_sensitive( m_widget, enable );
2864 if (m_wxwindow && (m_wxwindow != m_widget))
2865 gtk_widget_set_sensitive( m_wxwindow, enable );
2866 }
2867
2868 int wxWindowGTK::GetCharHeight() const
2869 {
2870 wxCHECK_MSG( (m_widget != NULL), 12, wxT("invalid window") );
2871
2872 wxFont font = GetFont();
2873 wxCHECK_MSG( font.Ok(), 12, wxT("invalid font") );
2874
2875 PangoContext* context = gtk_widget_get_pango_context(m_widget);
2876
2877 if (!context)
2878 return 0;
2879
2880 PangoFontDescription *desc = font.GetNativeFontInfo()->description;
2881 PangoLayout *layout = pango_layout_new(context);
2882 pango_layout_set_font_description(layout, desc);
2883 pango_layout_set_text(layout, "H", 1);
2884 PangoLayoutLine *line = (PangoLayoutLine *)pango_layout_get_lines(layout)->data;
2885
2886 PangoRectangle rect;
2887 pango_layout_line_get_extents(line, NULL, &rect);
2888
2889 g_object_unref (layout);
2890
2891 return (int) PANGO_PIXELS(rect.height);
2892 }
2893
2894 int wxWindowGTK::GetCharWidth() const
2895 {
2896 wxCHECK_MSG( (m_widget != NULL), 8, wxT("invalid window") );
2897
2898 wxFont font = GetFont();
2899 wxCHECK_MSG( font.Ok(), 8, wxT("invalid font") );
2900
2901 PangoContext* context = gtk_widget_get_pango_context(m_widget);
2902
2903 if (!context)
2904 return 0;
2905
2906 PangoFontDescription *desc = font.GetNativeFontInfo()->description;
2907 PangoLayout *layout = pango_layout_new(context);
2908 pango_layout_set_font_description(layout, desc);
2909 pango_layout_set_text(layout, "g", 1);
2910 PangoLayoutLine *line = (PangoLayoutLine *)pango_layout_get_lines(layout)->data;
2911
2912 PangoRectangle rect;
2913 pango_layout_line_get_extents(line, NULL, &rect);
2914
2915 g_object_unref (layout);
2916
2917 return (int) PANGO_PIXELS(rect.width);
2918 }
2919
2920 void wxWindowGTK::DoGetTextExtent( const wxString& string,
2921 int *x,
2922 int *y,
2923 int *descent,
2924 int *externalLeading,
2925 const wxFont *theFont ) const
2926 {
2927 wxFont fontToUse = theFont ? *theFont : GetFont();
2928
2929 wxCHECK_RET( fontToUse.Ok(), wxT("invalid font") );
2930
2931 if (string.empty())
2932 {
2933 if (x) (*x) = 0;
2934 if (y) (*y) = 0;
2935 return;
2936 }
2937
2938 PangoContext *context = NULL;
2939 if (m_widget)
2940 context = gtk_widget_get_pango_context( m_widget );
2941
2942 if (!context)
2943 {
2944 if (x) (*x) = 0;
2945 if (y) (*y) = 0;
2946 return;
2947 }
2948
2949 PangoFontDescription *desc = fontToUse.GetNativeFontInfo()->description;
2950 PangoLayout *layout = pango_layout_new(context);
2951 pango_layout_set_font_description(layout, desc);
2952 {
2953 const wxCharBuffer data = wxGTK_CONV( string );
2954 if ( data )
2955 pango_layout_set_text(layout, data, strlen(data));
2956 }
2957
2958 PangoRectangle rect;
2959 pango_layout_get_extents(layout, NULL, &rect);
2960
2961 if (x) (*x) = (wxCoord) PANGO_PIXELS(rect.width);
2962 if (y) (*y) = (wxCoord) PANGO_PIXELS(rect.height);
2963 if (descent)
2964 {
2965 PangoLayoutIter *iter = pango_layout_get_iter(layout);
2966 int baseline = pango_layout_iter_get_baseline(iter);
2967 pango_layout_iter_free(iter);
2968 *descent = *y - PANGO_PIXELS(baseline);
2969 }
2970 if (externalLeading) (*externalLeading) = 0; // ??
2971
2972 g_object_unref (layout);
2973 }
2974
2975 void wxWindowGTK::GTKDisableFocusOutEvent()
2976 {
2977 g_signal_handlers_block_by_func( m_focusWidget,
2978 (gpointer) gtk_window_focus_out_callback, this);
2979 }
2980
2981 void wxWindowGTK::GTKEnableFocusOutEvent()
2982 {
2983 g_signal_handlers_unblock_by_func( m_focusWidget,
2984 (gpointer) gtk_window_focus_out_callback, this);
2985 }
2986
2987 bool wxWindowGTK::GTKHandleFocusIn()
2988 {
2989 // Disable default focus handling for custom windows since the default GTK+
2990 // handler issues a repaint
2991 const bool retval = m_wxwindow ? true : false;
2992
2993
2994 // NB: if there's still unprocessed deferred focus-out event (see
2995 // GTKHandleFocusOut() for explanation), we need to process it first so
2996 // that the order of focus events -- focus-out first, then focus-in
2997 // elsewhere -- is preserved
2998 if ( gs_deferredFocusOut )
2999 {
3000 if ( GTKNeedsToFilterSameWindowFocus() &&
3001 gs_deferredFocusOut == this )
3002 {
3003 // GTK+ focus changed from this wxWindow back to itself, so don't
3004 // emit any events at all
3005 wxLogTrace(TRACE_FOCUS,
3006 "filtered out spurious focus change within %s(%p, %s)",
3007 GetClassInfo()->GetClassName(), this, GetLabel());
3008 gs_deferredFocusOut = NULL;
3009 return retval;
3010 }
3011
3012 // otherwise we need to send focus-out first
3013 wxASSERT_MSG ( gs_deferredFocusOut != this,
3014 "GTKHandleFocusIn(GTKFocus_Normal) called even though focus changed back to itself - derived class should handle this" );
3015 GTKHandleDeferredFocusOut();
3016 }
3017
3018
3019 wxLogTrace(TRACE_FOCUS,
3020 "handling focus_in event for %s(%p, %s)",
3021 GetClassInfo()->GetClassName(), this, GetLabel());
3022
3023 if (m_imData)
3024 gtk_im_context_focus_in(m_imData->context);
3025
3026 gs_currentFocus = this;
3027 gs_pendingFocus = NULL;
3028
3029 #if wxUSE_CARET
3030 // caret needs to be informed about focus change
3031 wxCaret *caret = GetCaret();
3032 if ( caret )
3033 {
3034 caret->OnSetFocus();
3035 }
3036 #endif // wxUSE_CARET
3037
3038 // Notify the parent keeping track of focus for the kbd navigation
3039 // purposes that we got it.
3040 wxChildFocusEvent eventChildFocus(static_cast<wxWindow*>(this));
3041 GTKProcessEvent(eventChildFocus);
3042
3043 wxFocusEvent eventFocus(wxEVT_SET_FOCUS, GetId());
3044 eventFocus.SetEventObject(this);
3045 GTKProcessEvent(eventFocus);
3046
3047 return retval;
3048 }
3049
3050 bool wxWindowGTK::GTKHandleFocusOut()
3051 {
3052 // Disable default focus handling for custom windows since the default GTK+
3053 // handler issues a repaint
3054 const bool retval = m_wxwindow ? true : false;
3055
3056
3057 // NB: If a control is composed of several GtkWidgets and when focus
3058 // changes from one of them to another within the same wxWindow, we get
3059 // a focus-out event followed by focus-in for another GtkWidget owned
3060 // by the same wx control. We don't want to generate two spurious
3061 // wxEVT_SET_FOCUS events in this case, so we defer sending wx events
3062 // from GTKHandleFocusOut() until we know for sure it's not coming back
3063 // (i.e. in GTKHandleFocusIn() or at idle time).
3064 if ( GTKNeedsToFilterSameWindowFocus() )
3065 {
3066 wxASSERT_MSG( gs_deferredFocusOut == NULL,
3067 "deferred focus out event already pending" );
3068 wxLogTrace(TRACE_FOCUS,
3069 "deferring focus_out event for %s(%p, %s)",
3070 GetClassInfo()->GetClassName(), this, GetLabel());
3071 gs_deferredFocusOut = this;
3072 return retval;
3073 }
3074
3075 GTKHandleFocusOutNoDeferring();
3076
3077 return retval;
3078 }
3079
3080 void wxWindowGTK::GTKHandleFocusOutNoDeferring()
3081 {
3082 wxLogTrace(TRACE_FOCUS,
3083 "handling focus_out event for %s(%p, %s)",
3084 GetClassInfo()->GetClassName(), this, GetLabel());
3085
3086 if (m_imData)
3087 gtk_im_context_focus_out(m_imData->context);
3088
3089 if ( gs_currentFocus != this )
3090 {
3091 // Something is terribly wrong, gs_currentFocus is out of sync with the
3092 // real focus. We will reset it to NULL anyway, because after this
3093 // focus-out event is handled, one of the following with happen:
3094 //
3095 // * either focus will go out of the app altogether, in which case
3096 // gs_currentFocus _should_ be NULL
3097 //
3098 // * or it goes to another control, in which case focus-in event will
3099 // follow immediately and it will set gs_currentFocus to the right
3100 // value
3101 wxLogDebug("window %s(%p, %s) lost focus even though it didn't have it",
3102 GetClassInfo()->GetClassName(), this, GetLabel());
3103 }
3104 gs_currentFocus = NULL;
3105
3106 #if wxUSE_CARET
3107 // caret needs to be informed about focus change
3108 wxCaret *caret = GetCaret();
3109 if ( caret )
3110 {
3111 caret->OnKillFocus();
3112 }
3113 #endif // wxUSE_CARET
3114
3115 wxFocusEvent event( wxEVT_KILL_FOCUS, GetId() );
3116 event.SetEventObject( this );
3117 GTKProcessEvent( event );
3118 }
3119
3120 /*static*/
3121 void wxWindowGTK::GTKHandleDeferredFocusOut()
3122 {
3123 // NB: See GTKHandleFocusOut() for explanation. This function is called
3124 // from either GTKHandleFocusIn() or OnInternalIdle() to process
3125 // deferred event.
3126 if ( gs_deferredFocusOut )
3127 {
3128 wxWindowGTK *win = gs_deferredFocusOut;
3129 gs_deferredFocusOut = NULL;
3130
3131 wxLogTrace(TRACE_FOCUS,
3132 "processing deferred focus_out event for %s(%p, %s)",
3133 win->GetClassInfo()->GetClassName(), win, win->GetLabel());
3134
3135 win->GTKHandleFocusOutNoDeferring();
3136 }
3137 }
3138
3139 void wxWindowGTK::SetFocus()
3140 {
3141 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
3142
3143 // Setting "physical" focus is not immediate in GTK+ and while
3144 // gtk_widget_is_focus ("determines if the widget is the focus widget
3145 // within its toplevel", i.e. returns true for one widget per TLW, not
3146 // globally) returns true immediately after grabbing focus,
3147 // GTK_WIDGET_HAS_FOCUS (which returns true only for the one widget that
3148 // has focus at the moment) takes affect only after the window is shown
3149 // (if it was hidden at the moment of the call) or at the next event loop
3150 // iteration.
3151 //
3152 // Because we want to FindFocus() call immediately following
3153 // foo->SetFocus() to return foo, we have to keep track of "pending" focus
3154 // ourselves.
3155 gs_pendingFocus = this;
3156
3157 GtkWidget *widget = m_wxwindow ? m_wxwindow : m_focusWidget;
3158
3159 if ( GTK_IS_CONTAINER(widget) &&
3160 !GTK_WIDGET_CAN_FOCUS(widget) )
3161 {
3162 wxLogTrace(TRACE_FOCUS,
3163 wxT("Setting focus to a child of %s(%p, %s)"),
3164 GetClassInfo()->GetClassName(), this, GetLabel().c_str());
3165 gtk_widget_child_focus(widget, GTK_DIR_TAB_FORWARD);
3166 }
3167 else
3168 {
3169 wxLogTrace(TRACE_FOCUS,
3170 wxT("Setting focus to %s(%p, %s)"),
3171 GetClassInfo()->GetClassName(), this, GetLabel().c_str());
3172 gtk_widget_grab_focus(widget);
3173 }
3174 }
3175
3176 void wxWindowGTK::SetCanFocus(bool canFocus)
3177 {
3178 if ( canFocus )
3179 GTK_WIDGET_SET_FLAGS(m_widget, GTK_CAN_FOCUS);
3180 else
3181 GTK_WIDGET_UNSET_FLAGS(m_widget, GTK_CAN_FOCUS);
3182
3183 if ( m_wxwindow && (m_widget != m_wxwindow) )
3184 {
3185 if ( canFocus )
3186 GTK_WIDGET_SET_FLAGS(m_wxwindow, GTK_CAN_FOCUS);
3187 else
3188 GTK_WIDGET_UNSET_FLAGS(m_wxwindow, GTK_CAN_FOCUS);
3189 }
3190 }
3191
3192 bool wxWindowGTK::Reparent( wxWindowBase *newParentBase )
3193 {
3194 wxCHECK_MSG( (m_widget != NULL), false, wxT("invalid window") );
3195
3196 wxWindowGTK *oldParent = m_parent,
3197 *newParent = (wxWindowGTK *)newParentBase;
3198
3199 wxASSERT( GTK_IS_WIDGET(m_widget) );
3200
3201 if ( !wxWindowBase::Reparent(newParent) )
3202 return false;
3203
3204 wxASSERT( GTK_IS_WIDGET(m_widget) );
3205
3206 if (oldParent)
3207 gtk_container_remove( GTK_CONTAINER(m_widget->parent), m_widget );
3208
3209 wxASSERT( GTK_IS_WIDGET(m_widget) );
3210
3211 if (newParent)
3212 {
3213 if (GTK_WIDGET_VISIBLE (newParent->m_widget))
3214 {
3215 m_showOnIdle = true;
3216 gtk_widget_hide( m_widget );
3217 }
3218 /* insert GTK representation */
3219 newParent->AddChildGTK(this);
3220 }
3221
3222 SetLayoutDirection(wxLayout_Default);
3223
3224 return true;
3225 }
3226
3227 void wxWindowGTK::DoAddChild(wxWindowGTK *child)
3228 {
3229 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
3230 wxASSERT_MSG( (child != NULL), wxT("invalid child window") );
3231
3232 /* add to list */
3233 AddChild( child );
3234
3235 /* insert GTK representation */
3236 AddChildGTK(child);
3237 }
3238
3239 void wxWindowGTK::AddChild(wxWindowBase *child)
3240 {
3241 wxWindowBase::AddChild(child);
3242 m_dirtyTabOrder = true;
3243 wxTheApp->WakeUpIdle();
3244 }
3245
3246 void wxWindowGTK::RemoveChild(wxWindowBase *child)
3247 {
3248 wxWindowBase::RemoveChild(child);
3249 m_dirtyTabOrder = true;
3250 wxTheApp->WakeUpIdle();
3251 }
3252
3253 /* static */
3254 wxLayoutDirection wxWindowGTK::GTKGetLayout(GtkWidget *widget)
3255 {
3256 return gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL
3257 ? wxLayout_RightToLeft
3258 : wxLayout_LeftToRight;
3259 }
3260
3261 /* static */
3262 void wxWindowGTK::GTKSetLayout(GtkWidget *widget, wxLayoutDirection dir)
3263 {
3264 wxASSERT_MSG( dir != wxLayout_Default, wxT("invalid layout direction") );
3265
3266 gtk_widget_set_direction(widget,
3267 dir == wxLayout_RightToLeft ? GTK_TEXT_DIR_RTL
3268 : GTK_TEXT_DIR_LTR);
3269 }
3270
3271 wxLayoutDirection wxWindowGTK::GetLayoutDirection() const
3272 {
3273 return GTKGetLayout(m_widget);
3274 }
3275
3276 void wxWindowGTK::SetLayoutDirection(wxLayoutDirection dir)
3277 {
3278 if ( dir == wxLayout_Default )
3279 {
3280 const wxWindow *const parent = GetParent();
3281 if ( parent )
3282 {
3283 // inherit layout from parent.
3284 dir = parent->GetLayoutDirection();
3285 }
3286 else // no parent, use global default layout
3287 {
3288 dir = wxTheApp->GetLayoutDirection();
3289 }
3290 }
3291
3292 if ( dir == wxLayout_Default )
3293 return;
3294
3295 GTKSetLayout(m_widget, dir);
3296
3297 if (m_wxwindow && (m_wxwindow != m_widget))
3298 GTKSetLayout(m_wxwindow, dir);
3299 }
3300
3301 wxCoord
3302 wxWindowGTK::AdjustForLayoutDirection(wxCoord x,
3303 wxCoord WXUNUSED(width),
3304 wxCoord WXUNUSED(widthTotal)) const
3305 {
3306 // We now mirror the coordinates of RTL windows in wxPizza
3307 return x;
3308 }
3309
3310 void wxWindowGTK::DoMoveInTabOrder(wxWindow *win, WindowOrder move)
3311 {
3312 wxWindowBase::DoMoveInTabOrder(win, move);
3313 m_dirtyTabOrder = true;
3314 wxTheApp->WakeUpIdle();
3315 }
3316
3317 bool wxWindowGTK::DoNavigateIn(int flags)
3318 {
3319 if ( flags & wxNavigationKeyEvent::WinChange )
3320 {
3321 wxFAIL_MSG( wxT("not implemented") );
3322
3323 return false;
3324 }
3325 else // navigate inside the container
3326 {
3327 wxWindow *parent = wxGetTopLevelParent((wxWindow *)this);
3328 wxCHECK_MSG( parent, false, wxT("every window must have a TLW parent") );
3329
3330 GtkDirectionType dir;
3331 dir = flags & wxNavigationKeyEvent::IsForward ? GTK_DIR_TAB_FORWARD
3332 : GTK_DIR_TAB_BACKWARD;
3333
3334 gboolean rc;
3335 g_signal_emit_by_name(parent->m_widget, "focus", dir, &rc);
3336
3337 return rc == TRUE;
3338 }
3339 }
3340
3341 bool wxWindowGTK::GTKWidgetNeedsMnemonic() const
3342 {
3343 // none needed by default
3344 return false;
3345 }
3346
3347 void wxWindowGTK::GTKWidgetDoSetMnemonic(GtkWidget* WXUNUSED(w))
3348 {
3349 // nothing to do by default since none is needed
3350 }
3351
3352 void wxWindowGTK::RealizeTabOrder()
3353 {
3354 if (m_wxwindow)
3355 {
3356 if ( !m_children.empty() )
3357 {
3358 // we don't only construct the correct focus chain but also use
3359 // this opportunity to update the mnemonic widgets for the widgets
3360 // that need them
3361
3362 GList *chain = NULL;
3363 wxWindowGTK* mnemonicWindow = NULL;
3364
3365 for ( wxWindowList::const_iterator i = m_children.begin();
3366 i != m_children.end();
3367 ++i )
3368 {
3369 wxWindowGTK *win = *i;
3370
3371 if ( mnemonicWindow )
3372 {
3373 if ( win->AcceptsFocusFromKeyboard() )
3374 {
3375 // wxComboBox et al. needs to focus on on a different
3376 // widget than m_widget, so if the main widget isn't
3377 // focusable try the connect widget
3378 GtkWidget* w = win->m_widget;
3379 if ( !GTK_WIDGET_CAN_FOCUS(w) )
3380 {
3381 w = win->GetConnectWidget();
3382 if ( !GTK_WIDGET_CAN_FOCUS(w) )
3383 w = NULL;
3384 }
3385
3386 if ( w )
3387 {
3388 mnemonicWindow->GTKWidgetDoSetMnemonic(w);
3389 mnemonicWindow = NULL;
3390 }
3391 }
3392 }
3393 else if ( win->GTKWidgetNeedsMnemonic() )
3394 {
3395 mnemonicWindow = win;
3396 }
3397
3398 chain = g_list_prepend(chain, win->m_widget);
3399 }
3400
3401 chain = g_list_reverse(chain);
3402
3403 gtk_container_set_focus_chain(GTK_CONTAINER(m_wxwindow), chain);
3404 g_list_free(chain);
3405 }
3406 else // no children
3407 {
3408 gtk_container_unset_focus_chain(GTK_CONTAINER(m_wxwindow));
3409 }
3410 }
3411 }
3412
3413 void wxWindowGTK::Raise()
3414 {
3415 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3416
3417 if (m_wxwindow && m_wxwindow->window)
3418 {
3419 gdk_window_raise( m_wxwindow->window );
3420 }
3421 else if (m_widget->window)
3422 {
3423 gdk_window_raise( m_widget->window );
3424 }
3425 }
3426
3427 void wxWindowGTK::Lower()
3428 {
3429 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3430
3431 if (m_wxwindow && m_wxwindow->window)
3432 {
3433 gdk_window_lower( m_wxwindow->window );
3434 }
3435 else if (m_widget->window)
3436 {
3437 gdk_window_lower( m_widget->window );
3438 }
3439 }
3440
3441 bool wxWindowGTK::SetCursor( const wxCursor &cursor )
3442 {
3443 if ( !wxWindowBase::SetCursor(cursor.Ok() ? cursor : *wxSTANDARD_CURSOR) )
3444 return false;
3445
3446 GTKUpdateCursor();
3447
3448 return true;
3449 }
3450
3451 void wxWindowGTK::GTKUpdateCursor()
3452 {
3453 wxCursor cursor(g_globalCursor.Ok() ? g_globalCursor : GetCursor());
3454 if ( cursor.Ok() )
3455 {
3456 wxArrayGdkWindows windowsThis;
3457 GdkWindow * const winThis = GTKGetWindow(windowsThis);
3458 if ( winThis )
3459 {
3460 gdk_window_set_cursor(winThis, cursor.GetCursor());
3461 }
3462 else
3463 {
3464 const size_t count = windowsThis.size();
3465 for ( size_t n = 0; n < count; n++ )
3466 {
3467 GdkWindow *win = windowsThis[n];
3468 if ( !win )
3469 {
3470 wxFAIL_MSG(wxT("NULL window returned by GTKGetWindow()?"));
3471 continue;
3472 }
3473
3474 gdk_window_set_cursor(win, cursor.GetCursor());
3475 }
3476 }
3477 }
3478 }
3479
3480 void wxWindowGTK::WarpPointer( int x, int y )
3481 {
3482 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3483
3484 // We provide this function ourselves as it is
3485 // missing in GDK (top of this file).
3486
3487 GdkWindow *window = NULL;
3488 if (m_wxwindow)
3489 window = m_wxwindow->window;
3490 else
3491 window = GetConnectWidget()->window;
3492
3493 if (window)
3494 gdk_window_warp_pointer( window, x, y );
3495 }
3496
3497 wxWindowGTK::ScrollDir wxWindowGTK::ScrollDirFromRange(GtkRange *range) const
3498 {
3499 // find the scrollbar which generated the event
3500 for ( int dir = 0; dir < ScrollDir_Max; dir++ )
3501 {
3502 if ( range == m_scrollBar[dir] )
3503 return (ScrollDir)dir;
3504 }
3505
3506 wxFAIL_MSG( wxT("event from unknown scrollbar received") );
3507
3508 return ScrollDir_Max;
3509 }
3510
3511 bool wxWindowGTK::DoScrollByUnits(ScrollDir dir, ScrollUnit unit, int units)
3512 {
3513 bool changed = false;
3514 GtkRange* range = m_scrollBar[dir];
3515 if ( range && units )
3516 {
3517 GtkAdjustment* adj = range->adjustment;
3518 gdouble inc = unit == ScrollUnit_Line ? adj->step_increment
3519 : adj->page_increment;
3520
3521 const int posOld = int(adj->value + 0.5);
3522 gtk_range_set_value(range, posOld + units*inc);
3523
3524 changed = int(adj->value + 0.5) != posOld;
3525 }
3526
3527 return changed;
3528 }
3529
3530 bool wxWindowGTK::ScrollLines(int lines)
3531 {
3532 return DoScrollByUnits(ScrollDir_Vert, ScrollUnit_Line, lines);
3533 }
3534
3535 bool wxWindowGTK::ScrollPages(int pages)
3536 {
3537 return DoScrollByUnits(ScrollDir_Vert, ScrollUnit_Page, pages);
3538 }
3539
3540 void wxWindowGTK::Refresh(bool WXUNUSED(eraseBackground),
3541 const wxRect *rect)
3542 {
3543 if ( !m_widget )
3544 {
3545 // it is valid to call Refresh() for a window which hasn't been created
3546 // yet, it simply doesn't do anything in this case
3547 return;
3548 }
3549
3550 if (!m_wxwindow)
3551 {
3552 if (rect)
3553 gtk_widget_queue_draw_area( m_widget, rect->x, rect->y, rect->width, rect->height );
3554 else
3555 gtk_widget_queue_draw( m_widget );
3556 }
3557 else
3558 {
3559 // Just return if the widget or one of its ancestors isn't mapped
3560 GtkWidget *w;
3561 for (w = m_wxwindow; w != NULL; w = w->parent)
3562 if (!GTK_WIDGET_MAPPED (w))
3563 return;
3564
3565 if (rect)
3566 {
3567 int x = rect->x;
3568 if (GetLayoutDirection() == wxLayout_RightToLeft)
3569 x = GetClientSize().x - x - rect->width;
3570 GdkRectangle r;
3571 r.x = rect->x;
3572 r.y = rect->y;
3573 r.width = rect->width;
3574 r.height = rect->height;
3575 gdk_window_invalidate_rect( m_wxwindow->window, &r, TRUE );
3576 }
3577 else
3578 gdk_window_invalidate_rect( m_wxwindow->window, NULL, TRUE );
3579 }
3580 }
3581
3582 void wxWindowGTK::Update()
3583 {
3584 if (m_widget && m_widget->window)
3585 {
3586 GdkDisplay* display = gtk_widget_get_display(m_widget);
3587 // Flush everything out to the server, and wait for it to finish.
3588 // This ensures nothing will overwrite the drawing we are about to do.
3589 gdk_display_sync(display);
3590
3591 gdk_window_process_updates(m_widget->window, TRUE);
3592
3593 // Flush again, but no need to wait for it to finish
3594 gdk_display_flush(display);
3595 }
3596 }
3597
3598 bool wxWindowGTK::DoIsExposed( int x, int y ) const
3599 {
3600 return m_updateRegion.Contains(x, y) != wxOutRegion;
3601 }
3602
3603 bool wxWindowGTK::DoIsExposed( int x, int y, int w, int h ) const
3604 {
3605 if (GetLayoutDirection() == wxLayout_RightToLeft)
3606 return m_updateRegion.Contains(x-w, y, w, h) != wxOutRegion;
3607 else
3608 return m_updateRegion.Contains(x, y, w, h) != wxOutRegion;
3609 }
3610
3611 void wxWindowGTK::GtkSendPaintEvents()
3612 {
3613 if (!m_wxwindow)
3614 {
3615 m_updateRegion.Clear();
3616 return;
3617 }
3618
3619 // Clip to paint region in wxClientDC
3620 m_clipPaintRegion = true;
3621
3622 m_nativeUpdateRegion = m_updateRegion;
3623
3624 if (GetLayoutDirection() == wxLayout_RightToLeft)
3625 {
3626 // Transform m_updateRegion under RTL
3627 m_updateRegion.Clear();
3628
3629 gint width;
3630 gdk_drawable_get_size(m_wxwindow->window, &width, NULL);
3631
3632 wxRegionIterator upd( m_nativeUpdateRegion );
3633 while (upd)
3634 {
3635 wxRect rect;
3636 rect.x = upd.GetX();
3637 rect.y = upd.GetY();
3638 rect.width = upd.GetWidth();
3639 rect.height = upd.GetHeight();
3640
3641 rect.x = width - rect.x - rect.width;
3642 m_updateRegion.Union( rect );
3643
3644 ++upd;
3645 }
3646 }
3647
3648 switch ( GetBackgroundStyle() )
3649 {
3650 case wxBG_STYLE_ERASE:
3651 {
3652 wxWindowDC dc( (wxWindow*)this );
3653 dc.SetDeviceClippingRegion( m_updateRegion );
3654
3655 // Work around gtk-qt <= 0.60 bug whereby the window colour
3656 // remains grey
3657 if ( UseBgCol() &&
3658 wxSystemOptions::
3659 GetOptionInt("gtk.window.force-background-colour") )
3660 {
3661 dc.SetBackground(GetBackgroundColour());
3662 dc.Clear();
3663 }
3664
3665 wxEraseEvent erase_event( GetId(), &dc );
3666 erase_event.SetEventObject( this );
3667
3668 if ( HandleWindowEvent(erase_event) )
3669 {
3670 // background erased, don't do it again
3671 break;
3672 }
3673 }
3674 // fall through
3675
3676 case wxBG_STYLE_SYSTEM:
3677 if ( GetThemeEnabled() )
3678 {
3679 // find ancestor from which to steal background
3680 wxWindow *parent = wxGetTopLevelParent((wxWindow *)this);
3681 if (!parent)
3682 parent = (wxWindow*)this;
3683
3684 if (GTK_WIDGET_MAPPED(parent->m_widget))
3685 {
3686 wxRegionIterator upd( m_nativeUpdateRegion );
3687 while (upd)
3688 {
3689 GdkRectangle rect;
3690 rect.x = upd.GetX();
3691 rect.y = upd.GetY();
3692 rect.width = upd.GetWidth();
3693 rect.height = upd.GetHeight();
3694
3695 gtk_paint_flat_box( parent->m_widget->style,
3696 m_wxwindow->window,
3697 (GtkStateType)GTK_WIDGET_STATE(m_wxwindow),
3698 GTK_SHADOW_NONE,
3699 &rect,
3700 parent->m_widget,
3701 (char *)"base",
3702 0, 0, -1, -1 );
3703
3704 ++upd;
3705 }
3706 }
3707 }
3708 break;
3709
3710 case wxBG_STYLE_PAINT:
3711 // nothing to do: window will be painted over in EVT_PAINT
3712 break;
3713
3714 default:
3715 wxFAIL_MSG( "unsupported background style" );
3716 }
3717
3718 wxNcPaintEvent nc_paint_event( GetId() );
3719 nc_paint_event.SetEventObject( this );
3720 HandleWindowEvent( nc_paint_event );
3721
3722 wxPaintEvent paint_event( GetId() );
3723 paint_event.SetEventObject( this );
3724 HandleWindowEvent( paint_event );
3725
3726 m_clipPaintRegion = false;
3727
3728 m_updateRegion.Clear();
3729 m_nativeUpdateRegion.Clear();
3730 }
3731
3732 void wxWindowGTK::SetDoubleBuffered( bool on )
3733 {
3734 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3735
3736 if ( m_wxwindow )
3737 gtk_widget_set_double_buffered( m_wxwindow, on );
3738 }
3739
3740 bool wxWindowGTK::IsDoubleBuffered() const
3741 {
3742 return GTK_WIDGET_DOUBLE_BUFFERED( m_wxwindow );
3743 }
3744
3745 void wxWindowGTK::ClearBackground()
3746 {
3747 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
3748 }
3749
3750 #if wxUSE_TOOLTIPS
3751 void wxWindowGTK::DoSetToolTip( wxToolTip *tip )
3752 {
3753 wxWindowBase::DoSetToolTip(tip);
3754
3755 if (m_tooltip)
3756 {
3757 m_tooltip->GTKApply( (wxWindow *)this );
3758 }
3759 else
3760 {
3761 GtkWidget *w = GetConnectWidget();
3762 wxToolTip::GTKApply(w, NULL);
3763 #if GTK_CHECK_VERSION(2, 12, 0)
3764 // Just applying NULL doesn't work on 2.12.0, so also use
3765 // gtk_widget_set_has_tooltip. It is part of the new GtkTooltip API
3766 // but seems also to work with the old GtkTooltips.
3767 if (gtk_check_version(2, 12, 0) == NULL)
3768 gtk_widget_set_has_tooltip(w, FALSE);
3769 #endif
3770 }
3771 }
3772
3773 void wxWindowGTK::GTKApplyToolTip( GtkTooltips *tips, const gchar *tip )
3774 {
3775 gtk_tooltips_set_tip(tips, GetConnectWidget(), tip, NULL);
3776 }
3777 #endif // wxUSE_TOOLTIPS
3778
3779 bool wxWindowGTK::SetBackgroundColour( const wxColour &colour )
3780 {
3781 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
3782
3783 if (!wxWindowBase::SetBackgroundColour(colour))
3784 return false;
3785
3786 if (colour.Ok())
3787 {
3788 // We need the pixel value e.g. for background clearing.
3789 m_backgroundColour.CalcPixel(gtk_widget_get_colormap(m_widget));
3790 }
3791
3792 // apply style change (forceStyle=true so that new style is applied
3793 // even if the bg colour changed from valid to wxNullColour)
3794 GTKApplyWidgetStyle(true);
3795
3796 return true;
3797 }
3798
3799 bool wxWindowGTK::SetForegroundColour( const wxColour &colour )
3800 {
3801 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
3802
3803 if (!wxWindowBase::SetForegroundColour(colour))
3804 {
3805 return false;
3806 }
3807
3808 if (colour.Ok())
3809 {
3810 // We need the pixel value e.g. for background clearing.
3811 m_foregroundColour.CalcPixel(gtk_widget_get_colormap(m_widget));
3812 }
3813
3814 // apply style change (forceStyle=true so that new style is applied
3815 // even if the bg colour changed from valid to wxNullColour):
3816 GTKApplyWidgetStyle(true);
3817
3818 return true;
3819 }
3820
3821 PangoContext *wxWindowGTK::GTKGetPangoDefaultContext()
3822 {
3823 return gtk_widget_get_pango_context( m_widget );
3824 }
3825
3826 GtkRcStyle *wxWindowGTK::GTKCreateWidgetStyle(bool forceStyle)
3827 {
3828 // do we need to apply any changes at all?
3829 if ( !forceStyle &&
3830 !m_font.Ok() &&
3831 !m_foregroundColour.Ok() && !m_backgroundColour.Ok() )
3832 {
3833 return NULL;
3834 }
3835
3836 GtkRcStyle *style = gtk_rc_style_new();
3837
3838 if ( m_font.Ok() )
3839 {
3840 style->font_desc =
3841 pango_font_description_copy( m_font.GetNativeFontInfo()->description );
3842 }
3843
3844 int flagsNormal = 0,
3845 flagsPrelight = 0,
3846 flagsActive = 0,
3847 flagsInsensitive = 0;
3848
3849 if ( m_foregroundColour.Ok() )
3850 {
3851 const GdkColor *fg = m_foregroundColour.GetColor();
3852
3853 style->fg[GTK_STATE_NORMAL] =
3854 style->text[GTK_STATE_NORMAL] = *fg;
3855 flagsNormal |= GTK_RC_FG | GTK_RC_TEXT;
3856
3857 style->fg[GTK_STATE_PRELIGHT] =
3858 style->text[GTK_STATE_PRELIGHT] = *fg;
3859 flagsPrelight |= GTK_RC_FG | GTK_RC_TEXT;
3860
3861 style->fg[GTK_STATE_ACTIVE] =
3862 style->text[GTK_STATE_ACTIVE] = *fg;
3863 flagsActive |= GTK_RC_FG | GTK_RC_TEXT;
3864 }
3865
3866 if ( m_backgroundColour.Ok() )
3867 {
3868 const GdkColor *bg = m_backgroundColour.GetColor();
3869
3870 style->bg[GTK_STATE_NORMAL] =
3871 style->base[GTK_STATE_NORMAL] = *bg;
3872 flagsNormal |= GTK_RC_BG | GTK_RC_BASE;
3873
3874 style->bg[GTK_STATE_PRELIGHT] =
3875 style->base[GTK_STATE_PRELIGHT] = *bg;
3876 flagsPrelight |= GTK_RC_BG | GTK_RC_BASE;
3877
3878 style->bg[GTK_STATE_ACTIVE] =
3879 style->base[GTK_STATE_ACTIVE] = *bg;
3880 flagsActive |= GTK_RC_BG | GTK_RC_BASE;
3881
3882 style->bg[GTK_STATE_INSENSITIVE] =
3883 style->base[GTK_STATE_INSENSITIVE] = *bg;
3884 flagsInsensitive |= GTK_RC_BG | GTK_RC_BASE;
3885 }
3886
3887 style->color_flags[GTK_STATE_NORMAL] = (GtkRcFlags)flagsNormal;
3888 style->color_flags[GTK_STATE_PRELIGHT] = (GtkRcFlags)flagsPrelight;
3889 style->color_flags[GTK_STATE_ACTIVE] = (GtkRcFlags)flagsActive;
3890 style->color_flags[GTK_STATE_INSENSITIVE] = (GtkRcFlags)flagsInsensitive;
3891
3892 return style;
3893 }
3894
3895 void wxWindowGTK::GTKApplyWidgetStyle(bool forceStyle)
3896 {
3897 GtkRcStyle *style = GTKCreateWidgetStyle(forceStyle);
3898 if ( style )
3899 {
3900 DoApplyWidgetStyle(style);
3901 gtk_rc_style_unref(style);
3902 }
3903
3904 // Style change may affect GTK+'s size calculation:
3905 InvalidateBestSize();
3906 }
3907
3908 void wxWindowGTK::DoApplyWidgetStyle(GtkRcStyle *style)
3909 {
3910 wxSuspendStyleEvents s(static_cast<wxWindow*>(this));
3911
3912 if (m_wxwindow)
3913 gtk_widget_modify_style(m_wxwindow, style);
3914 else
3915 gtk_widget_modify_style(m_widget, style);
3916 }
3917
3918 bool wxWindowGTK::SetBackgroundStyle(wxBackgroundStyle style)
3919 {
3920 wxWindowBase::SetBackgroundStyle(style);
3921
3922 if ( style == wxBG_STYLE_PAINT )
3923 {
3924 GdkWindow *window;
3925 if ( m_wxwindow )
3926 {
3927 window = m_wxwindow->window;
3928 }
3929 else
3930 {
3931 GtkWidget * const w = GetConnectWidget();
3932 window = w ? w->window : NULL;
3933 }
3934
3935 if (window)
3936 {
3937 // Make sure GDK/X11 doesn't refresh the window
3938 // automatically.
3939 gdk_window_set_back_pixmap( window, None, False );
3940 #ifdef __X__
3941 Display* display = GDK_WINDOW_DISPLAY(window);
3942 XFlush(display);
3943 #endif
3944 m_needsStyleChange = false;
3945 }
3946 else // window not realized yet
3947 {
3948 // Do in OnIdle, because the window is not yet available
3949 m_needsStyleChange = true;
3950 }
3951
3952 // Don't apply widget style, or we get a grey background
3953 }
3954 else
3955 {
3956 // apply style change (forceStyle=true so that new style is applied
3957 // even if the bg colour changed from valid to wxNullColour):
3958 GTKApplyWidgetStyle(true);
3959 }
3960
3961 return true;
3962 }
3963
3964 // ----------------------------------------------------------------------------
3965 // Pop-up menu stuff
3966 // ----------------------------------------------------------------------------
3967
3968 #if wxUSE_MENUS_NATIVE
3969
3970 static void SetInvokingWindow( wxMenu *menu, wxWindow* win )
3971 {
3972 menu->SetInvokingWindow( win );
3973
3974 wxMenuItemList::compatibility_iterator node = menu->GetMenuItems().GetFirst();
3975 while (node)
3976 {
3977 wxMenuItem *menuitem = node->GetData();
3978 if (menuitem->IsSubMenu())
3979 {
3980 SetInvokingWindow( menuitem->GetSubMenu(), win );
3981 }
3982
3983 node = node->GetNext();
3984 }
3985 }
3986
3987 extern "C" {
3988 static
3989 void wxPopupMenuPositionCallback( GtkMenu *menu,
3990 gint *x, gint *y,
3991 gboolean * WXUNUSED(whatever),
3992 gpointer user_data )
3993 {
3994 // ensure that the menu appears entirely on screen
3995 GtkRequisition req;
3996 gtk_widget_get_child_requisition(GTK_WIDGET(menu), &req);
3997
3998 wxSize sizeScreen = wxGetDisplaySize();
3999 wxPoint *pos = (wxPoint*)user_data;
4000
4001 gint xmax = sizeScreen.x - req.width,
4002 ymax = sizeScreen.y - req.height;
4003
4004 *x = pos->x < xmax ? pos->x : xmax;
4005 *y = pos->y < ymax ? pos->y : ymax;
4006 }
4007 }
4008
4009 bool wxWindowGTK::DoPopupMenu( wxMenu *menu, int x, int y )
4010 {
4011 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
4012
4013 wxCHECK_MSG( menu != NULL, false, wxT("invalid popup-menu") );
4014
4015 SetInvokingWindow( menu, this );
4016
4017 menu->UpdateUI();
4018
4019 wxPoint pos;
4020 gpointer userdata;
4021 GtkMenuPositionFunc posfunc;
4022 if ( x == -1 && y == -1 )
4023 {
4024 // use GTK's default positioning algorithm
4025 userdata = NULL;
4026 posfunc = NULL;
4027 }
4028 else
4029 {
4030 pos = ClientToScreen(wxPoint(x, y));
4031 userdata = &pos;
4032 posfunc = wxPopupMenuPositionCallback;
4033 }
4034
4035 menu->m_popupShown = true;
4036 gtk_menu_popup(
4037 GTK_MENU(menu->m_menu),
4038 NULL, // parent menu shell
4039 NULL, // parent menu item
4040 posfunc, // function to position it
4041 userdata, // client data
4042 0, // button used to activate it
4043 gtk_get_current_event_time()
4044 );
4045
4046 while (menu->m_popupShown)
4047 {
4048 gtk_main_iteration();
4049 }
4050
4051 return true;
4052 }
4053
4054 #endif // wxUSE_MENUS_NATIVE
4055
4056 #if wxUSE_DRAG_AND_DROP
4057
4058 void wxWindowGTK::SetDropTarget( wxDropTarget *dropTarget )
4059 {
4060 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4061
4062 GtkWidget *dnd_widget = GetConnectWidget();
4063
4064 if (m_dropTarget) m_dropTarget->GtkUnregisterWidget( dnd_widget );
4065
4066 if (m_dropTarget) delete m_dropTarget;
4067 m_dropTarget = dropTarget;
4068
4069 if (m_dropTarget) m_dropTarget->GtkRegisterWidget( dnd_widget );
4070 }
4071
4072 #endif // wxUSE_DRAG_AND_DROP
4073
4074 GtkWidget* wxWindowGTK::GetConnectWidget()
4075 {
4076 GtkWidget *connect_widget = m_widget;
4077 if (m_wxwindow) connect_widget = m_wxwindow;
4078
4079 return connect_widget;
4080 }
4081
4082 bool wxWindowGTK::GTKIsOwnWindow(GdkWindow *window) const
4083 {
4084 wxArrayGdkWindows windowsThis;
4085 GdkWindow * const winThis = GTKGetWindow(windowsThis);
4086
4087 return winThis ? window == winThis
4088 : windowsThis.Index(window) != wxNOT_FOUND;
4089 }
4090
4091 GdkWindow *wxWindowGTK::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
4092 {
4093 return m_wxwindow ? m_wxwindow->window : m_widget->window;
4094 }
4095
4096 bool wxWindowGTK::SetFont( const wxFont &font )
4097 {
4098 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
4099
4100 if (!wxWindowBase::SetFont(font))
4101 return false;
4102
4103 // apply style change (forceStyle=true so that new style is applied
4104 // even if the font changed from valid to wxNullFont):
4105 GTKApplyWidgetStyle(true);
4106
4107 return true;
4108 }
4109
4110 void wxWindowGTK::DoCaptureMouse()
4111 {
4112 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4113
4114 GdkWindow *window = NULL;
4115 if (m_wxwindow)
4116 window = m_wxwindow->window;
4117 else
4118 window = GetConnectWidget()->window;
4119
4120 wxCHECK_RET( window, wxT("CaptureMouse() failed") );
4121
4122 const wxCursor* cursor = &m_cursor;
4123 if (!cursor->Ok())
4124 cursor = wxSTANDARD_CURSOR;
4125
4126 gdk_pointer_grab( window, FALSE,
4127 (GdkEventMask)
4128 (GDK_BUTTON_PRESS_MASK |
4129 GDK_BUTTON_RELEASE_MASK |
4130 GDK_POINTER_MOTION_HINT_MASK |
4131 GDK_POINTER_MOTION_MASK),
4132 NULL,
4133 cursor->GetCursor(),
4134 (guint32)GDK_CURRENT_TIME );
4135 g_captureWindow = this;
4136 g_captureWindowHasMouse = true;
4137 }
4138
4139 void wxWindowGTK::DoReleaseMouse()
4140 {
4141 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4142
4143 wxCHECK_RET( g_captureWindow, wxT("can't release mouse - not captured") );
4144
4145 g_captureWindow = NULL;
4146
4147 GdkWindow *window = NULL;
4148 if (m_wxwindow)
4149 window = m_wxwindow->window;
4150 else
4151 window = GetConnectWidget()->window;
4152
4153 if (!window)
4154 return;
4155
4156 gdk_pointer_ungrab ( (guint32)GDK_CURRENT_TIME );
4157 }
4158
4159 void wxWindowGTK::GTKReleaseMouseAndNotify()
4160 {
4161 DoReleaseMouse();
4162 wxMouseCaptureLostEvent evt(GetId());
4163 evt.SetEventObject( this );
4164 HandleWindowEvent( evt );
4165 }
4166
4167 /* static */
4168 wxWindow *wxWindowBase::GetCapture()
4169 {
4170 return (wxWindow *)g_captureWindow;
4171 }
4172
4173 bool wxWindowGTK::IsRetained() const
4174 {
4175 return false;
4176 }
4177
4178 void wxWindowGTK::SetScrollbar(int orient,
4179 int pos,
4180 int thumbVisible,
4181 int range,
4182 bool WXUNUSED(update))
4183 {
4184 const int dir = ScrollDirFromOrient(orient);
4185 GtkRange* const sb = m_scrollBar[dir];
4186 wxCHECK_RET( sb, wxT("this window is not scrollable") );
4187
4188 if (range <= 0)
4189 {
4190 // GtkRange requires upper > lower
4191 range =
4192 thumbVisible = 1;
4193 }
4194
4195 GtkAdjustment * const adj = sb->adjustment;
4196 adj->step_increment = 1;
4197 adj->page_increment =
4198 adj->page_size = thumbVisible;
4199 adj->value = pos;
4200
4201 g_signal_handlers_block_by_func(
4202 sb, (void*)gtk_scrollbar_value_changed, this);
4203
4204 gtk_range_set_range(sb, 0, range);
4205 m_scrollPos[dir] = sb->adjustment->value;
4206
4207 g_signal_handlers_unblock_by_func(
4208 sb, (void*)gtk_scrollbar_value_changed, this);
4209 }
4210
4211 void wxWindowGTK::SetScrollPos(int orient, int pos, bool WXUNUSED(refresh))
4212 {
4213 const int dir = ScrollDirFromOrient(orient);
4214 GtkRange * const sb = m_scrollBar[dir];
4215 wxCHECK_RET( sb, wxT("this window is not scrollable") );
4216
4217 // This check is more than an optimization. Without it, the slider
4218 // will not move smoothly while tracking when using wxScrollHelper.
4219 if (GetScrollPos(orient) != pos)
4220 {
4221 g_signal_handlers_block_by_func(
4222 sb, (void*)gtk_scrollbar_value_changed, this);
4223
4224 gtk_range_set_value(sb, pos);
4225 m_scrollPos[dir] = sb->adjustment->value;
4226
4227 g_signal_handlers_unblock_by_func(
4228 sb, (void*)gtk_scrollbar_value_changed, this);
4229 }
4230 }
4231
4232 int wxWindowGTK::GetScrollThumb(int orient) const
4233 {
4234 GtkRange * const sb = m_scrollBar[ScrollDirFromOrient(orient)];
4235 wxCHECK_MSG( sb, 0, wxT("this window is not scrollable") );
4236
4237 return wxRound(sb->adjustment->page_size);
4238 }
4239
4240 int wxWindowGTK::GetScrollPos( int orient ) const
4241 {
4242 GtkRange * const sb = m_scrollBar[ScrollDirFromOrient(orient)];
4243 wxCHECK_MSG( sb, 0, wxT("this window is not scrollable") );
4244
4245 return wxRound(sb->adjustment->value);
4246 }
4247
4248 int wxWindowGTK::GetScrollRange( int orient ) const
4249 {
4250 GtkRange * const sb = m_scrollBar[ScrollDirFromOrient(orient)];
4251 wxCHECK_MSG( sb, 0, wxT("this window is not scrollable") );
4252
4253 return wxRound(sb->adjustment->upper);
4254 }
4255
4256 // Determine if increment is the same as +/-x, allowing for some small
4257 // difference due to possible inexactness in floating point arithmetic
4258 static inline bool IsScrollIncrement(double increment, double x)
4259 {
4260 wxASSERT(increment > 0);
4261 const double tolerance = 1.0 / 1024;
4262 return fabs(increment - fabs(x)) < tolerance;
4263 }
4264
4265 wxEventType wxWindowGTK::GTKGetScrollEventType(GtkRange* range)
4266 {
4267 wxASSERT(range == m_scrollBar[0] || range == m_scrollBar[1]);
4268
4269 const int barIndex = range == m_scrollBar[1];
4270 GtkAdjustment* adj = range->adjustment;
4271
4272 const int value = wxRound(adj->value);
4273
4274 // save previous position
4275 const double oldPos = m_scrollPos[barIndex];
4276 // update current position
4277 m_scrollPos[barIndex] = adj->value;
4278 // If event should be ignored, or integral position has not changed
4279 if (!m_hasVMT || g_blockEventsOnDrag || value == wxRound(oldPos))
4280 {
4281 return wxEVT_NULL;
4282 }
4283
4284 wxEventType eventType = wxEVT_SCROLL_THUMBTRACK;
4285 if (!m_isScrolling)
4286 {
4287 // Difference from last change event
4288 const double diff = adj->value - oldPos;
4289 const bool isDown = diff > 0;
4290
4291 if (IsScrollIncrement(adj->step_increment, diff))
4292 {
4293 eventType = isDown ? wxEVT_SCROLL_LINEDOWN : wxEVT_SCROLL_LINEUP;
4294 }
4295 else if (IsScrollIncrement(adj->page_increment, diff))
4296 {
4297 eventType = isDown ? wxEVT_SCROLL_PAGEDOWN : wxEVT_SCROLL_PAGEUP;
4298 }
4299 else if (m_mouseButtonDown)
4300 {
4301 // Assume track event
4302 m_isScrolling = true;
4303 }
4304 }
4305 return eventType;
4306 }
4307
4308 void wxWindowGTK::ScrollWindow( int dx, int dy, const wxRect* WXUNUSED(rect) )
4309 {
4310 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4311
4312 wxCHECK_RET( m_wxwindow != NULL, wxT("window needs client area for scrolling") );
4313
4314 // No scrolling requested.
4315 if ((dx == 0) && (dy == 0)) return;
4316
4317 m_clipPaintRegion = true;
4318
4319 WX_PIZZA(m_wxwindow)->scroll(dx, dy);
4320
4321 m_clipPaintRegion = false;
4322
4323 #if wxUSE_CARET
4324 bool restoreCaret = (GetCaret() != NULL && GetCaret()->IsVisible());
4325 if (restoreCaret)
4326 {
4327 wxRect caretRect(GetCaret()->GetPosition(), GetCaret()->GetSize());
4328 if (dx > 0)
4329 caretRect.width += dx;
4330 else
4331 {
4332 caretRect.x += dx; caretRect.width -= dx;
4333 }
4334 if (dy > 0)
4335 caretRect.height += dy;
4336 else
4337 {
4338 caretRect.y += dy; caretRect.height -= dy;
4339 }
4340
4341 RefreshRect(caretRect);
4342 }
4343 #endif // wxUSE_CARET
4344 }
4345
4346 void wxWindowGTK::GTKScrolledWindowSetBorder(GtkWidget* w, int wxstyle)
4347 {
4348 //RN: Note that static controls usually have no border on gtk, so maybe
4349 //it makes sense to treat that as simply no border at the wx level
4350 //as well...
4351 if (!(wxstyle & wxNO_BORDER) && !(wxstyle & wxBORDER_STATIC))
4352 {
4353 GtkShadowType gtkstyle;
4354
4355 if(wxstyle & wxBORDER_RAISED)
4356 gtkstyle = GTK_SHADOW_OUT;
4357 else if ((wxstyle & wxBORDER_SUNKEN) || (wxstyle & wxBORDER_THEME))
4358 gtkstyle = GTK_SHADOW_IN;
4359 #if 0
4360 // Now obsolete
4361 else if (wxstyle & wxBORDER_DOUBLE)
4362 gtkstyle = GTK_SHADOW_ETCHED_IN;
4363 #endif
4364 else //default
4365 gtkstyle = GTK_SHADOW_IN;
4366
4367 gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(w),
4368 gtkstyle );
4369 }
4370 }
4371
4372 void wxWindowGTK::SetWindowStyleFlag( long style )
4373 {
4374 // Updates the internal variable. NB: Now m_windowStyle bits carry the _new_ style values already
4375 wxWindowBase::SetWindowStyleFlag(style);
4376 }
4377
4378 // Find the wxWindow at the current mouse position, also returning the mouse
4379 // position.
4380 wxWindow* wxFindWindowAtPointer(wxPoint& pt)
4381 {
4382 pt = wxGetMousePosition();
4383 wxWindow* found = wxFindWindowAtPoint(pt);
4384 return found;
4385 }
4386
4387 // Get the current mouse position.
4388 wxPoint wxGetMousePosition()
4389 {
4390 /* This crashes when used within wxHelpContext,
4391 so we have to use the X-specific implementation below.
4392 gint x, y;
4393 GdkModifierType *mask;
4394 (void) gdk_window_get_pointer(NULL, &x, &y, mask);
4395
4396 return wxPoint(x, y);
4397 */
4398
4399 int x, y;
4400 GdkWindow* windowAtPtr = gdk_window_at_pointer(& x, & y);
4401
4402 Display *display = windowAtPtr ? GDK_WINDOW_XDISPLAY(windowAtPtr) : GDK_DISPLAY();
4403 Window rootWindow = RootWindowOfScreen (DefaultScreenOfDisplay(display));
4404 Window rootReturn, childReturn;
4405 int rootX, rootY, winX, winY;
4406 unsigned int maskReturn;
4407
4408 XQueryPointer (display,
4409 rootWindow,
4410 &rootReturn,
4411 &childReturn,
4412 &rootX, &rootY, &winX, &winY, &maskReturn);
4413 return wxPoint(rootX, rootY);
4414
4415 }
4416
4417 GdkWindow* wxWindowGTK::GTKGetDrawingWindow() const
4418 {
4419 GdkWindow* window = NULL;
4420 if (m_wxwindow)
4421 window = m_wxwindow->window;
4422 return window;
4423 }
4424
4425 // ----------------------------------------------------------------------------
4426 // freeze/thaw
4427 // ----------------------------------------------------------------------------
4428
4429 extern "C"
4430 {
4431
4432 // this is called if we attempted to freeze unrealized widget when it finally
4433 // is realized (and so can be frozen):
4434 static void wx_frozen_widget_realize(GtkWidget* w, void* WXUNUSED(data))
4435 {
4436 wxASSERT( w && !GTK_WIDGET_NO_WINDOW(w) );
4437 wxASSERT( GTK_WIDGET_REALIZED(w) );
4438
4439 g_signal_handlers_disconnect_by_func
4440 (
4441 w,
4442 (void*)wx_frozen_widget_realize,
4443 NULL
4444 );
4445
4446 gdk_window_freeze_updates(w->window);
4447 }
4448
4449 } // extern "C"
4450
4451 void wxWindowGTK::GTKFreezeWidget(GtkWidget *w)
4452 {
4453 if ( !w || GTK_WIDGET_NO_WINDOW(w) )
4454 return; // window-less widget, cannot be frozen
4455
4456 if ( !GTK_WIDGET_REALIZED(w) )
4457 {
4458 // we can't thaw unrealized widgets because they don't have GdkWindow,
4459 // so set it up to be done immediately after realization:
4460 g_signal_connect_after
4461 (
4462 w,
4463 "realize",
4464 G_CALLBACK(wx_frozen_widget_realize),
4465 NULL
4466 );
4467 return;
4468 }
4469
4470 gdk_window_freeze_updates(w->window);
4471 }
4472
4473 void wxWindowGTK::GTKThawWidget(GtkWidget *w)
4474 {
4475 if ( !w || GTK_WIDGET_NO_WINDOW(w) )
4476 return; // window-less widget, cannot be frozen
4477
4478 if ( !GTK_WIDGET_REALIZED(w) )
4479 {
4480 // the widget wasn't realized yet, no need to thaw
4481 g_signal_handlers_disconnect_by_func
4482 (
4483 w,
4484 (void*)wx_frozen_widget_realize,
4485 NULL
4486 );
4487 return;
4488 }
4489
4490 gdk_window_thaw_updates(w->window);
4491 }
4492
4493 void wxWindowGTK::DoFreeze()
4494 {
4495 GTKFreezeWidget(m_widget);
4496 if ( m_wxwindow && m_widget != m_wxwindow )
4497 GTKFreezeWidget(m_wxwindow);
4498 }
4499
4500 void wxWindowGTK::DoThaw()
4501 {
4502 GTKThawWidget(m_widget);
4503 if ( m_wxwindow && m_widget != m_wxwindow )
4504 GTKThawWidget(m_wxwindow);
4505 }
wxWidgets (Impactor)