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Added GTKShouldConnectSizeRequest() to prevent size_request handling.
[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 (m_wxwindow)
2345 {
2346 #if GTK_CHECK_VERSION(2, 8, 0)
2347 if (!gtk_check_version(2,8,0))
2348 {
2349 // Make sure we can notify the app when mouse capture is lost
2350 g_signal_connect (m_wxwindow, "grab_broken_event",
2351 G_CALLBACK (gtk_window_grab_broken), this);
2352 }
2353 #endif
2354 }
2355
2356 if ( connect_widget != m_wxwindow )
2357 {
2358 #if GTK_CHECK_VERSION(2, 8, 0)
2359 if (!gtk_check_version(2,8,0))
2360 {
2361 // Make sure we can notify app code when mouse capture is lost
2362 g_signal_connect (connect_widget, "grab_broken_event",
2363 G_CALLBACK (gtk_window_grab_broken), this);
2364 }
2365 #endif
2366 }
2367
2368 if ( GTKShouldConnectSizeRequest() )
2369 {
2370 // This is needed if we want to add our windows into native
2371 // GTK controls, such as the toolbar. With this callback, the
2372 // toolbar gets to know the correct size (the one set by the
2373 // programmer). Sadly, it misbehaves for wxComboBox.
2374 g_signal_connect (m_widget, "size_request",
2375 G_CALLBACK (wxgtk_window_size_request_callback),
2376 this);
2377 }
2378
2379 InheritAttributes();
2380
2381 m_hasVMT = true;
2382
2383 SetLayoutDirection(wxLayout_Default);
2384
2385 // unless the window was created initially hidden (i.e. Hide() had been
2386 // called before Create()), we should show it at GTK+ level as well
2387 if ( IsShown() )
2388 gtk_widget_show( m_widget );
2389 }
2390
2391 void wxWindowGTK::ConnectWidget( GtkWidget *widget )
2392 {
2393 g_signal_connect (widget, "key_press_event",
2394 G_CALLBACK (gtk_window_key_press_callback), this);
2395 g_signal_connect (widget, "key_release_event",
2396 G_CALLBACK (gtk_window_key_release_callback), this);
2397 g_signal_connect (widget, "button_press_event",
2398 G_CALLBACK (gtk_window_button_press_callback), this);
2399 g_signal_connect (widget, "button_release_event",
2400 G_CALLBACK (gtk_window_button_release_callback), this);
2401 g_signal_connect (widget, "motion_notify_event",
2402 G_CALLBACK (gtk_window_motion_notify_callback), this);
2403
2404 g_signal_connect (widget, "scroll_event",
2405 G_CALLBACK (window_scroll_event), this);
2406 if (m_scrollBar[ScrollDir_Horz])
2407 g_signal_connect (m_scrollBar[ScrollDir_Horz], "scroll_event",
2408 G_CALLBACK (window_scroll_event_hscrollbar), this);
2409 if (m_scrollBar[ScrollDir_Vert])
2410 g_signal_connect (m_scrollBar[ScrollDir_Vert], "scroll_event",
2411 G_CALLBACK (window_scroll_event), this);
2412
2413 g_signal_connect (widget, "popup_menu",
2414 G_CALLBACK (wxgtk_window_popup_menu_callback), this);
2415 g_signal_connect (widget, "enter_notify_event",
2416 G_CALLBACK (gtk_window_enter_callback), this);
2417 g_signal_connect (widget, "leave_notify_event",
2418 G_CALLBACK (gtk_window_leave_callback), this);
2419
2420 if (IsTopLevel() && m_wxwindow)
2421 g_signal_connect (m_wxwindow, "style_set",
2422 G_CALLBACK (gtk_window_style_set_callback), this);
2423 }
2424
2425 bool wxWindowGTK::Destroy()
2426 {
2427 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
2428
2429 m_hasVMT = false;
2430
2431 return wxWindowBase::Destroy();
2432 }
2433
2434 void wxWindowGTK::DoMoveWindow(int x, int y, int width, int height)
2435 {
2436 gtk_widget_set_size_request(m_widget, width, height);
2437
2438 // inform the parent to perform the move
2439 wxASSERT_MSG(m_parent && m_parent->m_wxwindow,
2440 "the parent window has no client area?");
2441 WX_PIZZA(m_parent->m_wxwindow)->move(m_widget, x, y);
2442 }
2443
2444 void wxWindowGTK::ConstrainSize()
2445 {
2446 #ifdef __WXGPE__
2447 // GPE's window manager doesn't like size hints at all, esp. when the user
2448 // has to use the virtual keyboard, so don't constrain size there
2449 if (!IsTopLevel())
2450 #endif
2451 {
2452 const wxSize minSize = GetMinSize();
2453 const wxSize maxSize = GetMaxSize();
2454 if (minSize.x > 0 && m_width < minSize.x) m_width = minSize.x;
2455 if (minSize.y > 0 && m_height < minSize.y) m_height = minSize.y;
2456 if (maxSize.x > 0 && m_width > maxSize.x) m_width = maxSize.x;
2457 if (maxSize.y > 0 && m_height > maxSize.y) m_height = maxSize.y;
2458 }
2459 }
2460
2461 void wxWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags )
2462 {
2463 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
2464 wxASSERT_MSG( (m_parent != NULL), wxT("wxWindowGTK::SetSize requires parent.\n") );
2465
2466 int currentX, currentY;
2467 GetPosition(&currentX, &currentY);
2468 if (x == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2469 x = currentX;
2470 if (y == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2471 y = currentY;
2472 AdjustForParentClientOrigin(x, y, sizeFlags);
2473
2474 // calculate the best size if we should auto size the window
2475 if ( ((sizeFlags & wxSIZE_AUTO_WIDTH) && width == -1) ||
2476 ((sizeFlags & wxSIZE_AUTO_HEIGHT) && height == -1) )
2477 {
2478 const wxSize sizeBest = GetBestSize();
2479 if ( (sizeFlags & wxSIZE_AUTO_WIDTH) && width == -1 )
2480 width = sizeBest.x;
2481 if ( (sizeFlags & wxSIZE_AUTO_HEIGHT) && height == -1 )
2482 height = sizeBest.y;
2483 }
2484
2485 const wxSize oldSize(m_width, m_height);
2486 if (width != -1)
2487 m_width = width;
2488 if (height != -1)
2489 m_height = height;
2490
2491 if (m_parent->m_wxwindow)
2492 {
2493 wxPizza* pizza = WX_PIZZA(m_parent->m_wxwindow);
2494 m_x = x + pizza->m_scroll_x;
2495 m_y = y + pizza->m_scroll_y;
2496
2497 int left_border = 0;
2498 int right_border = 0;
2499 int top_border = 0;
2500 int bottom_border = 0;
2501
2502 /* the default button has a border around it */
2503 if (GTK_WIDGET_CAN_DEFAULT(m_widget))
2504 {
2505 GtkBorder *default_border = NULL;
2506 gtk_widget_style_get( m_widget, "default_border", &default_border, NULL );
2507 if (default_border)
2508 {
2509 left_border += default_border->left;
2510 right_border += default_border->right;
2511 top_border += default_border->top;
2512 bottom_border += default_border->bottom;
2513 gtk_border_free( default_border );
2514 }
2515 }
2516
2517 DoMoveWindow( m_x - left_border,
2518 m_y - top_border,
2519 m_width+left_border+right_border,
2520 m_height+top_border+bottom_border );
2521 }
2522
2523 if (m_width != oldSize.x || m_height != oldSize.y)
2524 {
2525 // update these variables to keep size_allocate handler
2526 // from sending another size event for this change
2527 GetClientSize( &m_oldClientWidth, &m_oldClientHeight );
2528
2529 gtk_widget_queue_resize(m_widget);
2530 if (!m_nativeSizeEvent)
2531 {
2532 wxSizeEvent event( wxSize(m_width,m_height), GetId() );
2533 event.SetEventObject( this );
2534 HandleWindowEvent( event );
2535 }
2536 } else
2537 if (sizeFlags & wxSIZE_FORCE_EVENT)
2538 {
2539 wxSizeEvent event( wxSize(m_width,m_height), GetId() );
2540 event.SetEventObject( this );
2541 HandleWindowEvent( event );
2542 }
2543 }
2544
2545 bool wxWindowGTK::GTKShowFromOnIdle()
2546 {
2547 if (IsShown() && m_showOnIdle && !GTK_WIDGET_VISIBLE (m_widget))
2548 {
2549 GtkAllocation alloc;
2550 alloc.x = m_x;
2551 alloc.y = m_y;
2552 alloc.width = m_width;
2553 alloc.height = m_height;
2554 gtk_widget_size_allocate( m_widget, &alloc );
2555 gtk_widget_show( m_widget );
2556 wxShowEvent eventShow(GetId(), true);
2557 eventShow.SetEventObject(this);
2558 HandleWindowEvent(eventShow);
2559 m_showOnIdle = false;
2560 return true;
2561 }
2562
2563 return false;
2564 }
2565
2566 void wxWindowGTK::OnInternalIdle()
2567 {
2568 if ( gs_deferredFocusOut )
2569 GTKHandleDeferredFocusOut();
2570
2571 // Check if we have to show window now
2572 if (GTKShowFromOnIdle()) return;
2573
2574 if ( m_dirtyTabOrder )
2575 {
2576 m_dirtyTabOrder = false;
2577 RealizeTabOrder();
2578 }
2579
2580 // Update style if the window was not yet realized when
2581 // SetBackgroundStyle() was called
2582 if (m_needsStyleChange)
2583 {
2584 SetBackgroundStyle(GetBackgroundStyle());
2585 m_needsStyleChange = false;
2586 }
2587
2588 wxCursor cursor = m_cursor;
2589 if (g_globalCursor.Ok()) cursor = g_globalCursor;
2590
2591 if (cursor.Ok())
2592 {
2593 /* I now set the cursor anew in every OnInternalIdle call
2594 as setting the cursor in a parent window also effects the
2595 windows above so that checking for the current cursor is
2596 not possible. */
2597
2598 if (m_wxwindow && (m_wxwindow != m_widget))
2599 {
2600 GdkWindow *window = m_wxwindow->window;
2601 if (window)
2602 gdk_window_set_cursor( window, cursor.GetCursor() );
2603
2604 if (!g_globalCursor.Ok())
2605 cursor = *wxSTANDARD_CURSOR;
2606
2607 window = m_widget->window;
2608 if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
2609 gdk_window_set_cursor( window, cursor.GetCursor() );
2610
2611 }
2612 else if ( m_widget )
2613 {
2614 GdkWindow *window = m_widget->window;
2615 if ( window && !GTK_WIDGET_NO_WINDOW(m_widget) )
2616 gdk_window_set_cursor( window, cursor.GetCursor() );
2617 }
2618 }
2619
2620 if (wxUpdateUIEvent::CanUpdate(this) && IsShownOnScreen())
2621 UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
2622 }
2623
2624 void wxWindowGTK::DoGetSize( int *width, int *height ) const
2625 {
2626 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2627
2628 if (width) (*width) = m_width;
2629 if (height) (*height) = m_height;
2630 }
2631
2632 void wxWindowGTK::DoSetClientSize( int width, int height )
2633 {
2634 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2635
2636 const wxSize size = GetSize();
2637 const wxSize clientSize = GetClientSize();
2638 SetSize(width + (size.x - clientSize.x), height + (size.y - clientSize.y));
2639 }
2640
2641 void wxWindowGTK::DoGetClientSize( int *width, int *height ) const
2642 {
2643 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2644
2645 int w = m_width;
2646 int h = m_height;
2647
2648 if ( m_wxwindow )
2649 {
2650 // if window is scrollable, account for scrollbars
2651 if ( GTK_IS_SCROLLED_WINDOW(m_widget) )
2652 {
2653 GtkPolicyType policy[ScrollDir_Max];
2654 gtk_scrolled_window_get_policy(GTK_SCROLLED_WINDOW(m_widget),
2655 &policy[ScrollDir_Horz],
2656 &policy[ScrollDir_Vert]);
2657
2658 for ( int i = 0; i < ScrollDir_Max; i++ )
2659 {
2660 // don't account for the scrollbars we don't have
2661 GtkRange * const range = m_scrollBar[i];
2662 if ( !range )
2663 continue;
2664
2665 // nor for the ones we have but don't current show
2666 switch ( policy[i] )
2667 {
2668 case GTK_POLICY_NEVER:
2669 // never shown so doesn't take any place
2670 continue;
2671
2672 case GTK_POLICY_ALWAYS:
2673 // no checks necessary
2674 break;
2675
2676 case GTK_POLICY_AUTOMATIC:
2677 // may be shown or not, check
2678 GtkAdjustment *adj = gtk_range_get_adjustment(range);
2679 if ( adj->upper <= adj->page_size )
2680 continue;
2681 }
2682
2683 GtkScrolledWindowClass *scroll_class =
2684 GTK_SCROLLED_WINDOW_CLASS( GTK_OBJECT_GET_CLASS(m_widget) );
2685
2686 GtkRequisition req;
2687 gtk_widget_size_request(GTK_WIDGET(range), &req);
2688 if (i == ScrollDir_Horz)
2689 h -= req.height + scroll_class->scrollbar_spacing;
2690 else
2691 w -= req.width + scroll_class->scrollbar_spacing;
2692 }
2693 }
2694
2695 int border_x, border_y;
2696 WX_PIZZA(m_wxwindow)->get_border_widths(border_x, border_y);
2697 w -= 2 * border_x;
2698 h -= 2 * border_y;
2699
2700 if (w < 0)
2701 w = 0;
2702 if (h < 0)
2703 h = 0;
2704 }
2705
2706 if (width) *width = w;
2707 if (height) *height = h;
2708 }
2709
2710 void wxWindowGTK::DoGetPosition( int *x, int *y ) const
2711 {
2712 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2713
2714 int dx = 0;
2715 int dy = 0;
2716 if (!IsTopLevel() && m_parent && m_parent->m_wxwindow)
2717 {
2718 wxPizza* pizza = WX_PIZZA(m_parent->m_wxwindow);
2719 dx = pizza->m_scroll_x;
2720 dy = pizza->m_scroll_y;
2721 }
2722
2723 if (m_x == -1 && m_y == -1)
2724 {
2725 GdkWindow *source = NULL;
2726 if (m_wxwindow)
2727 source = m_wxwindow->window;
2728 else
2729 source = m_widget->window;
2730
2731 if (source)
2732 {
2733 int org_x = 0;
2734 int org_y = 0;
2735 gdk_window_get_origin( source, &org_x, &org_y );
2736
2737 if (m_parent)
2738 m_parent->ScreenToClient(&org_x, &org_y);
2739
2740 const_cast<wxWindowGTK*>(this)->m_x = org_x;
2741 const_cast<wxWindowGTK*>(this)->m_y = org_y;
2742 }
2743 }
2744
2745 if (x) (*x) = m_x - dx;
2746 if (y) (*y) = m_y - dy;
2747 }
2748
2749 void wxWindowGTK::DoClientToScreen( int *x, int *y ) const
2750 {
2751 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2752
2753 if (!m_widget->window) return;
2754
2755 GdkWindow *source = NULL;
2756 if (m_wxwindow)
2757 source = m_wxwindow->window;
2758 else
2759 source = m_widget->window;
2760
2761 int org_x = 0;
2762 int org_y = 0;
2763 gdk_window_get_origin( source, &org_x, &org_y );
2764
2765 if (!m_wxwindow)
2766 {
2767 if (GTK_WIDGET_NO_WINDOW (m_widget))
2768 {
2769 org_x += m_widget->allocation.x;
2770 org_y += m_widget->allocation.y;
2771 }
2772 }
2773
2774
2775 if (x)
2776 {
2777 if (GetLayoutDirection() == wxLayout_RightToLeft)
2778 *x = (GetClientSize().x - *x) + org_x;
2779 else
2780 *x += org_x;
2781 }
2782
2783 if (y) *y += org_y;
2784 }
2785
2786 void wxWindowGTK::DoScreenToClient( int *x, int *y ) const
2787 {
2788 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2789
2790 if (!m_widget->window) return;
2791
2792 GdkWindow *source = NULL;
2793 if (m_wxwindow)
2794 source = m_wxwindow->window;
2795 else
2796 source = m_widget->window;
2797
2798 int org_x = 0;
2799 int org_y = 0;
2800 gdk_window_get_origin( source, &org_x, &org_y );
2801
2802 if (!m_wxwindow)
2803 {
2804 if (GTK_WIDGET_NO_WINDOW (m_widget))
2805 {
2806 org_x += m_widget->allocation.x;
2807 org_y += m_widget->allocation.y;
2808 }
2809 }
2810
2811 if (x)
2812 {
2813 if (GetLayoutDirection() == wxLayout_RightToLeft)
2814 *x = (GetClientSize().x - *x) - org_x;
2815 else
2816 *x -= org_x;
2817 }
2818 if (y) *y -= org_y;
2819 }
2820
2821 bool wxWindowGTK::Show( bool show )
2822 {
2823 if ( !wxWindowBase::Show(show) )
2824 {
2825 // nothing to do
2826 return false;
2827 }
2828
2829 // notice that we may call Hide() before the window is created and this is
2830 // actually useful to create it hidden initially -- but we can't call
2831 // Show() before it is created
2832 if ( !m_widget )
2833 {
2834 wxASSERT_MSG( !show, "can't show invalid window" );
2835 return true;
2836 }
2837
2838 if ( show )
2839 {
2840 if ( m_showOnIdle )
2841 {
2842 // defer until later
2843 return true;
2844 }
2845
2846 gtk_widget_show(m_widget);
2847 }
2848 else // hide
2849 {
2850 gtk_widget_hide(m_widget);
2851 }
2852
2853 wxShowEvent eventShow(GetId(), show);
2854 eventShow.SetEventObject(this);
2855 HandleWindowEvent(eventShow);
2856
2857 return true;
2858 }
2859
2860 void wxWindowGTK::DoEnable( bool enable )
2861 {
2862 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2863
2864 gtk_widget_set_sensitive( m_widget, enable );
2865 if (m_wxwindow && (m_wxwindow != m_widget))
2866 gtk_widget_set_sensitive( m_wxwindow, enable );
2867 }
2868
2869 int wxWindowGTK::GetCharHeight() const
2870 {
2871 wxCHECK_MSG( (m_widget != NULL), 12, wxT("invalid window") );
2872
2873 wxFont font = GetFont();
2874 wxCHECK_MSG( font.Ok(), 12, wxT("invalid font") );
2875
2876 PangoContext* context = gtk_widget_get_pango_context(m_widget);
2877
2878 if (!context)
2879 return 0;
2880
2881 PangoFontDescription *desc = font.GetNativeFontInfo()->description;
2882 PangoLayout *layout = pango_layout_new(context);
2883 pango_layout_set_font_description(layout, desc);
2884 pango_layout_set_text(layout, "H", 1);
2885 PangoLayoutLine *line = (PangoLayoutLine *)pango_layout_get_lines(layout)->data;
2886
2887 PangoRectangle rect;
2888 pango_layout_line_get_extents(line, NULL, &rect);
2889
2890 g_object_unref (layout);
2891
2892 return (int) PANGO_PIXELS(rect.height);
2893 }
2894
2895 int wxWindowGTK::GetCharWidth() const
2896 {
2897 wxCHECK_MSG( (m_widget != NULL), 8, wxT("invalid window") );
2898
2899 wxFont font = GetFont();
2900 wxCHECK_MSG( font.Ok(), 8, wxT("invalid font") );
2901
2902 PangoContext* context = gtk_widget_get_pango_context(m_widget);
2903
2904 if (!context)
2905 return 0;
2906
2907 PangoFontDescription *desc = font.GetNativeFontInfo()->description;
2908 PangoLayout *layout = pango_layout_new(context);
2909 pango_layout_set_font_description(layout, desc);
2910 pango_layout_set_text(layout, "g", 1);
2911 PangoLayoutLine *line = (PangoLayoutLine *)pango_layout_get_lines(layout)->data;
2912
2913 PangoRectangle rect;
2914 pango_layout_line_get_extents(line, NULL, &rect);
2915
2916 g_object_unref (layout);
2917
2918 return (int) PANGO_PIXELS(rect.width);
2919 }
2920
2921 void wxWindowGTK::DoGetTextExtent( const wxString& string,
2922 int *x,
2923 int *y,
2924 int *descent,
2925 int *externalLeading,
2926 const wxFont *theFont ) const
2927 {
2928 wxFont fontToUse = theFont ? *theFont : GetFont();
2929
2930 wxCHECK_RET( fontToUse.Ok(), wxT("invalid font") );
2931
2932 if (string.empty())
2933 {
2934 if (x) (*x) = 0;
2935 if (y) (*y) = 0;
2936 return;
2937 }
2938
2939 PangoContext *context = NULL;
2940 if (m_widget)
2941 context = gtk_widget_get_pango_context( m_widget );
2942
2943 if (!context)
2944 {
2945 if (x) (*x) = 0;
2946 if (y) (*y) = 0;
2947 return;
2948 }
2949
2950 PangoFontDescription *desc = fontToUse.GetNativeFontInfo()->description;
2951 PangoLayout *layout = pango_layout_new(context);
2952 pango_layout_set_font_description(layout, desc);
2953 {
2954 const wxCharBuffer data = wxGTK_CONV( string );
2955 if ( data )
2956 pango_layout_set_text(layout, data, strlen(data));
2957 }
2958
2959 PangoRectangle rect;
2960 pango_layout_get_extents(layout, NULL, &rect);
2961
2962 if (x) (*x) = (wxCoord) PANGO_PIXELS(rect.width);
2963 if (y) (*y) = (wxCoord) PANGO_PIXELS(rect.height);
2964 if (descent)
2965 {
2966 PangoLayoutIter *iter = pango_layout_get_iter(layout);
2967 int baseline = pango_layout_iter_get_baseline(iter);
2968 pango_layout_iter_free(iter);
2969 *descent = *y - PANGO_PIXELS(baseline);
2970 }
2971 if (externalLeading) (*externalLeading) = 0; // ??
2972
2973 g_object_unref (layout);
2974 }
2975
2976 void wxWindowGTK::GTKDisableFocusOutEvent()
2977 {
2978 g_signal_handlers_block_by_func( m_focusWidget,
2979 (gpointer) gtk_window_focus_out_callback, this);
2980 }
2981
2982 void wxWindowGTK::GTKEnableFocusOutEvent()
2983 {
2984 g_signal_handlers_unblock_by_func( m_focusWidget,
2985 (gpointer) gtk_window_focus_out_callback, this);
2986 }
2987
2988 bool wxWindowGTK::GTKHandleFocusIn()
2989 {
2990 // Disable default focus handling for custom windows since the default GTK+
2991 // handler issues a repaint
2992 const bool retval = m_wxwindow ? true : false;
2993
2994
2995 // NB: if there's still unprocessed deferred focus-out event (see
2996 // GTKHandleFocusOut() for explanation), we need to process it first so
2997 // that the order of focus events -- focus-out first, then focus-in
2998 // elsewhere -- is preserved
2999 if ( gs_deferredFocusOut )
3000 {
3001 if ( GTKNeedsToFilterSameWindowFocus() &&
3002 gs_deferredFocusOut == this )
3003 {
3004 // GTK+ focus changed from this wxWindow back to itself, so don't
3005 // emit any events at all
3006 wxLogTrace(TRACE_FOCUS,
3007 "filtered out spurious focus change within %s(%p, %s)",
3008 GetClassInfo()->GetClassName(), this, GetLabel());
3009 gs_deferredFocusOut = NULL;
3010 return retval;
3011 }
3012
3013 // otherwise we need to send focus-out first
3014 wxASSERT_MSG ( gs_deferredFocusOut != this,
3015 "GTKHandleFocusIn(GTKFocus_Normal) called even though focus changed back to itself - derived class should handle this" );
3016 GTKHandleDeferredFocusOut();
3017 }
3018
3019
3020 wxLogTrace(TRACE_FOCUS,
3021 "handling focus_in event for %s(%p, %s)",
3022 GetClassInfo()->GetClassName(), this, GetLabel());
3023
3024 if (m_imData)
3025 gtk_im_context_focus_in(m_imData->context);
3026
3027 gs_currentFocus = this;
3028 gs_pendingFocus = NULL;
3029
3030 #if wxUSE_CARET
3031 // caret needs to be informed about focus change
3032 wxCaret *caret = GetCaret();
3033 if ( caret )
3034 {
3035 caret->OnSetFocus();
3036 }
3037 #endif // wxUSE_CARET
3038
3039 // Notify the parent keeping track of focus for the kbd navigation
3040 // purposes that we got it.
3041 wxChildFocusEvent eventChildFocus(static_cast<wxWindow*>(this));
3042 GTKProcessEvent(eventChildFocus);
3043
3044 wxFocusEvent eventFocus(wxEVT_SET_FOCUS, GetId());
3045 eventFocus.SetEventObject(this);
3046 GTKProcessEvent(eventFocus);
3047
3048 return retval;
3049 }
3050
3051 bool wxWindowGTK::GTKHandleFocusOut()
3052 {
3053 // Disable default focus handling for custom windows since the default GTK+
3054 // handler issues a repaint
3055 const bool retval = m_wxwindow ? true : false;
3056
3057
3058 // NB: If a control is composed of several GtkWidgets and when focus
3059 // changes from one of them to another within the same wxWindow, we get
3060 // a focus-out event followed by focus-in for another GtkWidget owned
3061 // by the same wx control. We don't want to generate two spurious
3062 // wxEVT_SET_FOCUS events in this case, so we defer sending wx events
3063 // from GTKHandleFocusOut() until we know for sure it's not coming back
3064 // (i.e. in GTKHandleFocusIn() or at idle time).
3065 if ( GTKNeedsToFilterSameWindowFocus() )
3066 {
3067 wxASSERT_MSG( gs_deferredFocusOut == NULL,
3068 "deferred focus out event already pending" );
3069 wxLogTrace(TRACE_FOCUS,
3070 "deferring focus_out event for %s(%p, %s)",
3071 GetClassInfo()->GetClassName(), this, GetLabel());
3072 gs_deferredFocusOut = this;
3073 return retval;
3074 }
3075
3076 GTKHandleFocusOutNoDeferring();
3077
3078 return retval;
3079 }
3080
3081 void wxWindowGTK::GTKHandleFocusOutNoDeferring()
3082 {
3083 wxLogTrace(TRACE_FOCUS,
3084 "handling focus_out event for %s(%p, %s)",
3085 GetClassInfo()->GetClassName(), this, GetLabel());
3086
3087 if (m_imData)
3088 gtk_im_context_focus_out(m_imData->context);
3089
3090 if ( gs_currentFocus != this )
3091 {
3092 // Something is terribly wrong, gs_currentFocus is out of sync with the
3093 // real focus. We will reset it to NULL anyway, because after this
3094 // focus-out event is handled, one of the following with happen:
3095 //
3096 // * either focus will go out of the app altogether, in which case
3097 // gs_currentFocus _should_ be NULL
3098 //
3099 // * or it goes to another control, in which case focus-in event will
3100 // follow immediately and it will set gs_currentFocus to the right
3101 // value
3102 wxLogDebug("window %s(%p, %s) lost focus even though it didn't have it",
3103 GetClassInfo()->GetClassName(), this, GetLabel());
3104 }
3105 gs_currentFocus = NULL;
3106
3107 #if wxUSE_CARET
3108 // caret needs to be informed about focus change
3109 wxCaret *caret = GetCaret();
3110 if ( caret )
3111 {
3112 caret->OnKillFocus();
3113 }
3114 #endif // wxUSE_CARET
3115
3116 wxFocusEvent event( wxEVT_KILL_FOCUS, GetId() );
3117 event.SetEventObject( this );
3118 GTKProcessEvent( event );
3119 }
3120
3121 /*static*/
3122 void wxWindowGTK::GTKHandleDeferredFocusOut()
3123 {
3124 // NB: See GTKHandleFocusOut() for explanation. This function is called
3125 // from either GTKHandleFocusIn() or OnInternalIdle() to process
3126 // deferred event.
3127 if ( gs_deferredFocusOut )
3128 {
3129 wxWindowGTK *win = gs_deferredFocusOut;
3130 gs_deferredFocusOut = NULL;
3131
3132 wxLogTrace(TRACE_FOCUS,
3133 "processing deferred focus_out event for %s(%p, %s)",
3134 win->GetClassInfo()->GetClassName(), win, win->GetLabel());
3135
3136 win->GTKHandleFocusOutNoDeferring();
3137 }
3138 }
3139
3140 void wxWindowGTK::SetFocus()
3141 {
3142 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
3143
3144 // Setting "physical" focus is not immediate in GTK+ and while
3145 // gtk_widget_is_focus ("determines if the widget is the focus widget
3146 // within its toplevel", i.e. returns true for one widget per TLW, not
3147 // globally) returns true immediately after grabbing focus,
3148 // GTK_WIDGET_HAS_FOCUS (which returns true only for the one widget that
3149 // has focus at the moment) takes affect only after the window is shown
3150 // (if it was hidden at the moment of the call) or at the next event loop
3151 // iteration.
3152 //
3153 // Because we want to FindFocus() call immediately following
3154 // foo->SetFocus() to return foo, we have to keep track of "pending" focus
3155 // ourselves.
3156 gs_pendingFocus = this;
3157
3158 GtkWidget *widget = m_wxwindow ? m_wxwindow : m_focusWidget;
3159
3160 if ( GTK_IS_CONTAINER(widget) &&
3161 !GTK_WIDGET_CAN_FOCUS(widget) )
3162 {
3163 wxLogTrace(TRACE_FOCUS,
3164 wxT("Setting focus to a child of %s(%p, %s)"),
3165 GetClassInfo()->GetClassName(), this, GetLabel().c_str());
3166 gtk_widget_child_focus(widget, GTK_DIR_TAB_FORWARD);
3167 }
3168 else
3169 {
3170 wxLogTrace(TRACE_FOCUS,
3171 wxT("Setting focus to %s(%p, %s)"),
3172 GetClassInfo()->GetClassName(), this, GetLabel().c_str());
3173 gtk_widget_grab_focus(widget);
3174 }
3175 }
3176
3177 void wxWindowGTK::SetCanFocus(bool canFocus)
3178 {
3179 if ( canFocus )
3180 GTK_WIDGET_SET_FLAGS(m_widget, GTK_CAN_FOCUS);
3181 else
3182 GTK_WIDGET_UNSET_FLAGS(m_widget, GTK_CAN_FOCUS);
3183
3184 if ( m_wxwindow && (m_widget != m_wxwindow) )
3185 {
3186 if ( canFocus )
3187 GTK_WIDGET_SET_FLAGS(m_wxwindow, GTK_CAN_FOCUS);
3188 else
3189 GTK_WIDGET_UNSET_FLAGS(m_wxwindow, GTK_CAN_FOCUS);
3190 }
3191 }
3192
3193 bool wxWindowGTK::Reparent( wxWindowBase *newParentBase )
3194 {
3195 wxCHECK_MSG( (m_widget != NULL), false, wxT("invalid window") );
3196
3197 wxWindowGTK *oldParent = m_parent,
3198 *newParent = (wxWindowGTK *)newParentBase;
3199
3200 wxASSERT( GTK_IS_WIDGET(m_widget) );
3201
3202 if ( !wxWindowBase::Reparent(newParent) )
3203 return false;
3204
3205 wxASSERT( GTK_IS_WIDGET(m_widget) );
3206
3207 if (oldParent)
3208 gtk_container_remove( GTK_CONTAINER(m_widget->parent), m_widget );
3209
3210 wxASSERT( GTK_IS_WIDGET(m_widget) );
3211
3212 if (newParent)
3213 {
3214 if (GTK_WIDGET_VISIBLE (newParent->m_widget))
3215 {
3216 m_showOnIdle = true;
3217 gtk_widget_hide( m_widget );
3218 }
3219 /* insert GTK representation */
3220 newParent->AddChildGTK(this);
3221 }
3222
3223 SetLayoutDirection(wxLayout_Default);
3224
3225 return true;
3226 }
3227
3228 void wxWindowGTK::DoAddChild(wxWindowGTK *child)
3229 {
3230 wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
3231 wxASSERT_MSG( (child != NULL), wxT("invalid child window") );
3232
3233 /* add to list */
3234 AddChild( child );
3235
3236 /* insert GTK representation */
3237 AddChildGTK(child);
3238 }
3239
3240 void wxWindowGTK::AddChild(wxWindowBase *child)
3241 {
3242 wxWindowBase::AddChild(child);
3243 m_dirtyTabOrder = true;
3244 wxTheApp->WakeUpIdle();
3245 }
3246
3247 void wxWindowGTK::RemoveChild(wxWindowBase *child)
3248 {
3249 wxWindowBase::RemoveChild(child);
3250 m_dirtyTabOrder = true;
3251 wxTheApp->WakeUpIdle();
3252 }
3253
3254 /* static */
3255 wxLayoutDirection wxWindowGTK::GTKGetLayout(GtkWidget *widget)
3256 {
3257 return gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL
3258 ? wxLayout_RightToLeft
3259 : wxLayout_LeftToRight;
3260 }
3261
3262 /* static */
3263 void wxWindowGTK::GTKSetLayout(GtkWidget *widget, wxLayoutDirection dir)
3264 {
3265 wxASSERT_MSG( dir != wxLayout_Default, wxT("invalid layout direction") );
3266
3267 gtk_widget_set_direction(widget,
3268 dir == wxLayout_RightToLeft ? GTK_TEXT_DIR_RTL
3269 : GTK_TEXT_DIR_LTR);
3270 }
3271
3272 wxLayoutDirection wxWindowGTK::GetLayoutDirection() const
3273 {
3274 return GTKGetLayout(m_widget);
3275 }
3276
3277 void wxWindowGTK::SetLayoutDirection(wxLayoutDirection dir)
3278 {
3279 if ( dir == wxLayout_Default )
3280 {
3281 const wxWindow *const parent = GetParent();
3282 if ( parent )
3283 {
3284 // inherit layout from parent.
3285 dir = parent->GetLayoutDirection();
3286 }
3287 else // no parent, use global default layout
3288 {
3289 dir = wxTheApp->GetLayoutDirection();
3290 }
3291 }
3292
3293 if ( dir == wxLayout_Default )
3294 return;
3295
3296 GTKSetLayout(m_widget, dir);
3297
3298 if (m_wxwindow && (m_wxwindow != m_widget))
3299 GTKSetLayout(m_wxwindow, dir);
3300 }
3301
3302 wxCoord
3303 wxWindowGTK::AdjustForLayoutDirection(wxCoord x,
3304 wxCoord WXUNUSED(width),
3305 wxCoord WXUNUSED(widthTotal)) const
3306 {
3307 // We now mirror the coordinates of RTL windows in wxPizza
3308 return x;
3309 }
3310
3311 void wxWindowGTK::DoMoveInTabOrder(wxWindow *win, WindowOrder move)
3312 {
3313 wxWindowBase::DoMoveInTabOrder(win, move);
3314 m_dirtyTabOrder = true;
3315 wxTheApp->WakeUpIdle();
3316 }
3317
3318 bool wxWindowGTK::DoNavigateIn(int flags)
3319 {
3320 if ( flags & wxNavigationKeyEvent::WinChange )
3321 {
3322 wxFAIL_MSG( wxT("not implemented") );
3323
3324 return false;
3325 }
3326 else // navigate inside the container
3327 {
3328 wxWindow *parent = wxGetTopLevelParent((wxWindow *)this);
3329 wxCHECK_MSG( parent, false, wxT("every window must have a TLW parent") );
3330
3331 GtkDirectionType dir;
3332 dir = flags & wxNavigationKeyEvent::IsForward ? GTK_DIR_TAB_FORWARD
3333 : GTK_DIR_TAB_BACKWARD;
3334
3335 gboolean rc;
3336 g_signal_emit_by_name(parent->m_widget, "focus", dir, &rc);
3337
3338 return rc == TRUE;
3339 }
3340 }
3341
3342 bool wxWindowGTK::GTKWidgetNeedsMnemonic() const
3343 {
3344 // none needed by default
3345 return false;
3346 }
3347
3348 void wxWindowGTK::GTKWidgetDoSetMnemonic(GtkWidget* WXUNUSED(w))
3349 {
3350 // nothing to do by default since none is needed
3351 }
3352
3353 void wxWindowGTK::RealizeTabOrder()
3354 {
3355 if (m_wxwindow)
3356 {
3357 if ( !m_children.empty() )
3358 {
3359 // we don't only construct the correct focus chain but also use
3360 // this opportunity to update the mnemonic widgets for the widgets
3361 // that need them
3362
3363 GList *chain = NULL;
3364 wxWindowGTK* mnemonicWindow = NULL;
3365
3366 for ( wxWindowList::const_iterator i = m_children.begin();
3367 i != m_children.end();
3368 ++i )
3369 {
3370 wxWindowGTK *win = *i;
3371
3372 if ( mnemonicWindow )
3373 {
3374 if ( win->AcceptsFocusFromKeyboard() )
3375 {
3376 // wxComboBox et al. needs to focus on on a different
3377 // widget than m_widget, so if the main widget isn't
3378 // focusable try the connect widget
3379 GtkWidget* w = win->m_widget;
3380 if ( !GTK_WIDGET_CAN_FOCUS(w) )
3381 {
3382 w = win->GetConnectWidget();
3383 if ( !GTK_WIDGET_CAN_FOCUS(w) )
3384 w = NULL;
3385 }
3386
3387 if ( w )
3388 {
3389 mnemonicWindow->GTKWidgetDoSetMnemonic(w);
3390 mnemonicWindow = NULL;
3391 }
3392 }
3393 }
3394 else if ( win->GTKWidgetNeedsMnemonic() )
3395 {
3396 mnemonicWindow = win;
3397 }
3398
3399 chain = g_list_prepend(chain, win->m_widget);
3400 }
3401
3402 chain = g_list_reverse(chain);
3403
3404 gtk_container_set_focus_chain(GTK_CONTAINER(m_wxwindow), chain);
3405 g_list_free(chain);
3406 }
3407 else // no children
3408 {
3409 gtk_container_unset_focus_chain(GTK_CONTAINER(m_wxwindow));
3410 }
3411 }
3412 }
3413
3414 void wxWindowGTK::Raise()
3415 {
3416 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3417
3418 if (m_wxwindow && m_wxwindow->window)
3419 {
3420 gdk_window_raise( m_wxwindow->window );
3421 }
3422 else if (m_widget->window)
3423 {
3424 gdk_window_raise( m_widget->window );
3425 }
3426 }
3427
3428 void wxWindowGTK::Lower()
3429 {
3430 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3431
3432 if (m_wxwindow && m_wxwindow->window)
3433 {
3434 gdk_window_lower( m_wxwindow->window );
3435 }
3436 else if (m_widget->window)
3437 {
3438 gdk_window_lower( m_widget->window );
3439 }
3440 }
3441
3442 bool wxWindowGTK::SetCursor( const wxCursor &cursor )
3443 {
3444 if ( !wxWindowBase::SetCursor(cursor.Ok() ? cursor : *wxSTANDARD_CURSOR) )
3445 return false;
3446
3447 GTKUpdateCursor();
3448
3449 return true;
3450 }
3451
3452 void wxWindowGTK::GTKUpdateCursor()
3453 {
3454 wxCursor cursor(g_globalCursor.Ok() ? g_globalCursor : GetCursor());
3455 if ( cursor.Ok() )
3456 {
3457 wxArrayGdkWindows windowsThis;
3458 GdkWindow * const winThis = GTKGetWindow(windowsThis);
3459 if ( winThis )
3460 {
3461 gdk_window_set_cursor(winThis, cursor.GetCursor());
3462 }
3463 else
3464 {
3465 const size_t count = windowsThis.size();
3466 for ( size_t n = 0; n < count; n++ )
3467 {
3468 GdkWindow *win = windowsThis[n];
3469 if ( !win )
3470 {
3471 wxFAIL_MSG(wxT("NULL window returned by GTKGetWindow()?"));
3472 continue;
3473 }
3474
3475 gdk_window_set_cursor(win, cursor.GetCursor());
3476 }
3477 }
3478 }
3479 }
3480
3481 void wxWindowGTK::WarpPointer( int x, int y )
3482 {
3483 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3484
3485 // We provide this function ourselves as it is
3486 // missing in GDK (top of this file).
3487
3488 GdkWindow *window = NULL;
3489 if (m_wxwindow)
3490 window = m_wxwindow->window;
3491 else
3492 window = GetConnectWidget()->window;
3493
3494 if (window)
3495 gdk_window_warp_pointer( window, x, y );
3496 }
3497
3498 wxWindowGTK::ScrollDir wxWindowGTK::ScrollDirFromRange(GtkRange *range) const
3499 {
3500 // find the scrollbar which generated the event
3501 for ( int dir = 0; dir < ScrollDir_Max; dir++ )
3502 {
3503 if ( range == m_scrollBar[dir] )
3504 return (ScrollDir)dir;
3505 }
3506
3507 wxFAIL_MSG( wxT("event from unknown scrollbar received") );
3508
3509 return ScrollDir_Max;
3510 }
3511
3512 bool wxWindowGTK::DoScrollByUnits(ScrollDir dir, ScrollUnit unit, int units)
3513 {
3514 bool changed = false;
3515 GtkRange* range = m_scrollBar[dir];
3516 if ( range && units )
3517 {
3518 GtkAdjustment* adj = range->adjustment;
3519 gdouble inc = unit == ScrollUnit_Line ? adj->step_increment
3520 : adj->page_increment;
3521
3522 const int posOld = int(adj->value + 0.5);
3523 gtk_range_set_value(range, posOld + units*inc);
3524
3525 changed = int(adj->value + 0.5) != posOld;
3526 }
3527
3528 return changed;
3529 }
3530
3531 bool wxWindowGTK::ScrollLines(int lines)
3532 {
3533 return DoScrollByUnits(ScrollDir_Vert, ScrollUnit_Line, lines);
3534 }
3535
3536 bool wxWindowGTK::ScrollPages(int pages)
3537 {
3538 return DoScrollByUnits(ScrollDir_Vert, ScrollUnit_Page, pages);
3539 }
3540
3541 void wxWindowGTK::Refresh(bool WXUNUSED(eraseBackground),
3542 const wxRect *rect)
3543 {
3544 if ( !m_widget )
3545 {
3546 // it is valid to call Refresh() for a window which hasn't been created
3547 // yet, it simply doesn't do anything in this case
3548 return;
3549 }
3550
3551 if (!m_wxwindow)
3552 {
3553 if (rect)
3554 gtk_widget_queue_draw_area( m_widget, rect->x, rect->y, rect->width, rect->height );
3555 else
3556 gtk_widget_queue_draw( m_widget );
3557 }
3558 else
3559 {
3560 // Just return if the widget or one of its ancestors isn't mapped
3561 GtkWidget *w;
3562 for (w = m_wxwindow; w != NULL; w = w->parent)
3563 if (!GTK_WIDGET_MAPPED (w))
3564 return;
3565
3566 if (rect)
3567 {
3568 int x = rect->x;
3569 if (GetLayoutDirection() == wxLayout_RightToLeft)
3570 x = GetClientSize().x - x - rect->width;
3571 GdkRectangle r;
3572 r.x = rect->x;
3573 r.y = rect->y;
3574 r.width = rect->width;
3575 r.height = rect->height;
3576 gdk_window_invalidate_rect( m_wxwindow->window, &r, TRUE );
3577 }
3578 else
3579 gdk_window_invalidate_rect( m_wxwindow->window, NULL, TRUE );
3580 }
3581 }
3582
3583 void wxWindowGTK::Update()
3584 {
3585 if (m_widget && m_widget->window)
3586 {
3587 GdkDisplay* display = gtk_widget_get_display(m_widget);
3588 // Flush everything out to the server, and wait for it to finish.
3589 // This ensures nothing will overwrite the drawing we are about to do.
3590 gdk_display_sync(display);
3591
3592 gdk_window_process_updates(m_widget->window, TRUE);
3593
3594 // Flush again, but no need to wait for it to finish
3595 gdk_display_flush(display);
3596 }
3597 }
3598
3599 bool wxWindowGTK::DoIsExposed( int x, int y ) const
3600 {
3601 return m_updateRegion.Contains(x, y) != wxOutRegion;
3602 }
3603
3604 bool wxWindowGTK::DoIsExposed( int x, int y, int w, int h ) const
3605 {
3606 if (GetLayoutDirection() == wxLayout_RightToLeft)
3607 return m_updateRegion.Contains(x-w, y, w, h) != wxOutRegion;
3608 else
3609 return m_updateRegion.Contains(x, y, w, h) != wxOutRegion;
3610 }
3611
3612 void wxWindowGTK::GtkSendPaintEvents()
3613 {
3614 if (!m_wxwindow)
3615 {
3616 m_updateRegion.Clear();
3617 return;
3618 }
3619
3620 // Clip to paint region in wxClientDC
3621 m_clipPaintRegion = true;
3622
3623 m_nativeUpdateRegion = m_updateRegion;
3624
3625 if (GetLayoutDirection() == wxLayout_RightToLeft)
3626 {
3627 // Transform m_updateRegion under RTL
3628 m_updateRegion.Clear();
3629
3630 gint width;
3631 gdk_drawable_get_size(m_wxwindow->window, &width, NULL);
3632
3633 wxRegionIterator upd( m_nativeUpdateRegion );
3634 while (upd)
3635 {
3636 wxRect rect;
3637 rect.x = upd.GetX();
3638 rect.y = upd.GetY();
3639 rect.width = upd.GetWidth();
3640 rect.height = upd.GetHeight();
3641
3642 rect.x = width - rect.x - rect.width;
3643 m_updateRegion.Union( rect );
3644
3645 ++upd;
3646 }
3647 }
3648
3649 switch ( GetBackgroundStyle() )
3650 {
3651 case wxBG_STYLE_ERASE:
3652 {
3653 wxWindowDC dc( (wxWindow*)this );
3654 dc.SetDeviceClippingRegion( m_updateRegion );
3655
3656 // Work around gtk-qt <= 0.60 bug whereby the window colour
3657 // remains grey
3658 if ( UseBgCol() &&
3659 wxSystemOptions::
3660 GetOptionInt("gtk.window.force-background-colour") )
3661 {
3662 dc.SetBackground(GetBackgroundColour());
3663 dc.Clear();
3664 }
3665
3666 wxEraseEvent erase_event( GetId(), &dc );
3667 erase_event.SetEventObject( this );
3668
3669 if ( HandleWindowEvent(erase_event) )
3670 {
3671 // background erased, don't do it again
3672 break;
3673 }
3674 }
3675 // fall through
3676
3677 case wxBG_STYLE_SYSTEM:
3678 if ( GetThemeEnabled() )
3679 {
3680 // find ancestor from which to steal background
3681 wxWindow *parent = wxGetTopLevelParent((wxWindow *)this);
3682 if (!parent)
3683 parent = (wxWindow*)this;
3684
3685 if (GTK_WIDGET_MAPPED(parent->m_widget))
3686 {
3687 wxRegionIterator upd( m_nativeUpdateRegion );
3688 while (upd)
3689 {
3690 GdkRectangle rect;
3691 rect.x = upd.GetX();
3692 rect.y = upd.GetY();
3693 rect.width = upd.GetWidth();
3694 rect.height = upd.GetHeight();
3695
3696 gtk_paint_flat_box( parent->m_widget->style,
3697 m_wxwindow->window,
3698 (GtkStateType)GTK_WIDGET_STATE(m_wxwindow),
3699 GTK_SHADOW_NONE,
3700 &rect,
3701 parent->m_widget,
3702 (char *)"base",
3703 0, 0, -1, -1 );
3704
3705 ++upd;
3706 }
3707 }
3708 }
3709 break;
3710
3711 case wxBG_STYLE_PAINT:
3712 // nothing to do: window will be painted over in EVT_PAINT
3713 break;
3714
3715 default:
3716 wxFAIL_MSG( "unsupported background style" );
3717 }
3718
3719 wxNcPaintEvent nc_paint_event( GetId() );
3720 nc_paint_event.SetEventObject( this );
3721 HandleWindowEvent( nc_paint_event );
3722
3723 wxPaintEvent paint_event( GetId() );
3724 paint_event.SetEventObject( this );
3725 HandleWindowEvent( paint_event );
3726
3727 m_clipPaintRegion = false;
3728
3729 m_updateRegion.Clear();
3730 m_nativeUpdateRegion.Clear();
3731 }
3732
3733 void wxWindowGTK::SetDoubleBuffered( bool on )
3734 {
3735 wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3736
3737 if ( m_wxwindow )
3738 gtk_widget_set_double_buffered( m_wxwindow, on );
3739 }
3740
3741 bool wxWindowGTK::IsDoubleBuffered() const
3742 {
3743 return GTK_WIDGET_DOUBLE_BUFFERED( m_wxwindow );
3744 }
3745
3746 void wxWindowGTK::ClearBackground()
3747 {
3748 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
3749 }
3750
3751 #if wxUSE_TOOLTIPS
3752 void wxWindowGTK::DoSetToolTip( wxToolTip *tip )
3753 {
3754 wxWindowBase::DoSetToolTip(tip);
3755
3756 if (m_tooltip)
3757 {
3758 m_tooltip->GTKApply( (wxWindow *)this );
3759 }
3760 else
3761 {
3762 GtkWidget *w = GetConnectWidget();
3763 wxToolTip::GTKApply(w, NULL);
3764 #if GTK_CHECK_VERSION(2, 12, 0)
3765 // Just applying NULL doesn't work on 2.12.0, so also use
3766 // gtk_widget_set_has_tooltip. It is part of the new GtkTooltip API
3767 // but seems also to work with the old GtkTooltips.
3768 if (gtk_check_version(2, 12, 0) == NULL)
3769 gtk_widget_set_has_tooltip(w, FALSE);
3770 #endif
3771 }
3772 }
3773
3774 void wxWindowGTK::GTKApplyToolTip( GtkTooltips *tips, const gchar *tip )
3775 {
3776 gtk_tooltips_set_tip(tips, GetConnectWidget(), tip, NULL);
3777 }
3778 #endif // wxUSE_TOOLTIPS
3779
3780 bool wxWindowGTK::SetBackgroundColour( const wxColour &colour )
3781 {
3782 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
3783
3784 if (!wxWindowBase::SetBackgroundColour(colour))
3785 return false;
3786
3787 if (colour.Ok())
3788 {
3789 // We need the pixel value e.g. for background clearing.
3790 m_backgroundColour.CalcPixel(gtk_widget_get_colormap(m_widget));
3791 }
3792
3793 // apply style change (forceStyle=true so that new style is applied
3794 // even if the bg colour changed from valid to wxNullColour)
3795 GTKApplyWidgetStyle(true);
3796
3797 return true;
3798 }
3799
3800 bool wxWindowGTK::SetForegroundColour( const wxColour &colour )
3801 {
3802 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
3803
3804 if (!wxWindowBase::SetForegroundColour(colour))
3805 {
3806 return false;
3807 }
3808
3809 if (colour.Ok())
3810 {
3811 // We need the pixel value e.g. for background clearing.
3812 m_foregroundColour.CalcPixel(gtk_widget_get_colormap(m_widget));
3813 }
3814
3815 // apply style change (forceStyle=true so that new style is applied
3816 // even if the bg colour changed from valid to wxNullColour):
3817 GTKApplyWidgetStyle(true);
3818
3819 return true;
3820 }
3821
3822 PangoContext *wxWindowGTK::GTKGetPangoDefaultContext()
3823 {
3824 return gtk_widget_get_pango_context( m_widget );
3825 }
3826
3827 GtkRcStyle *wxWindowGTK::GTKCreateWidgetStyle(bool forceStyle)
3828 {
3829 // do we need to apply any changes at all?
3830 if ( !forceStyle &&
3831 !m_font.Ok() &&
3832 !m_foregroundColour.Ok() && !m_backgroundColour.Ok() )
3833 {
3834 return NULL;
3835 }
3836
3837 GtkRcStyle *style = gtk_rc_style_new();
3838
3839 if ( m_font.Ok() )
3840 {
3841 style->font_desc =
3842 pango_font_description_copy( m_font.GetNativeFontInfo()->description );
3843 }
3844
3845 int flagsNormal = 0,
3846 flagsPrelight = 0,
3847 flagsActive = 0,
3848 flagsInsensitive = 0;
3849
3850 if ( m_foregroundColour.Ok() )
3851 {
3852 const GdkColor *fg = m_foregroundColour.GetColor();
3853
3854 style->fg[GTK_STATE_NORMAL] =
3855 style->text[GTK_STATE_NORMAL] = *fg;
3856 flagsNormal |= GTK_RC_FG | GTK_RC_TEXT;
3857
3858 style->fg[GTK_STATE_PRELIGHT] =
3859 style->text[GTK_STATE_PRELIGHT] = *fg;
3860 flagsPrelight |= GTK_RC_FG | GTK_RC_TEXT;
3861
3862 style->fg[GTK_STATE_ACTIVE] =
3863 style->text[GTK_STATE_ACTIVE] = *fg;
3864 flagsActive |= GTK_RC_FG | GTK_RC_TEXT;
3865 }
3866
3867 if ( m_backgroundColour.Ok() )
3868 {
3869 const GdkColor *bg = m_backgroundColour.GetColor();
3870
3871 style->bg[GTK_STATE_NORMAL] =
3872 style->base[GTK_STATE_NORMAL] = *bg;
3873 flagsNormal |= GTK_RC_BG | GTK_RC_BASE;
3874
3875 style->bg[GTK_STATE_PRELIGHT] =
3876 style->base[GTK_STATE_PRELIGHT] = *bg;
3877 flagsPrelight |= GTK_RC_BG | GTK_RC_BASE;
3878
3879 style->bg[GTK_STATE_ACTIVE] =
3880 style->base[GTK_STATE_ACTIVE] = *bg;
3881 flagsActive |= GTK_RC_BG | GTK_RC_BASE;
3882
3883 style->bg[GTK_STATE_INSENSITIVE] =
3884 style->base[GTK_STATE_INSENSITIVE] = *bg;
3885 flagsInsensitive |= GTK_RC_BG | GTK_RC_BASE;
3886 }
3887
3888 style->color_flags[GTK_STATE_NORMAL] = (GtkRcFlags)flagsNormal;
3889 style->color_flags[GTK_STATE_PRELIGHT] = (GtkRcFlags)flagsPrelight;
3890 style->color_flags[GTK_STATE_ACTIVE] = (GtkRcFlags)flagsActive;
3891 style->color_flags[GTK_STATE_INSENSITIVE] = (GtkRcFlags)flagsInsensitive;
3892
3893 return style;
3894 }
3895
3896 void wxWindowGTK::GTKApplyWidgetStyle(bool forceStyle)
3897 {
3898 GtkRcStyle *style = GTKCreateWidgetStyle(forceStyle);
3899 if ( style )
3900 {
3901 DoApplyWidgetStyle(style);
3902 gtk_rc_style_unref(style);
3903 }
3904
3905 // Style change may affect GTK+'s size calculation:
3906 InvalidateBestSize();
3907 }
3908
3909 void wxWindowGTK::DoApplyWidgetStyle(GtkRcStyle *style)
3910 {
3911 wxSuspendStyleEvents s(static_cast<wxWindow*>(this));
3912
3913 if (m_wxwindow)
3914 gtk_widget_modify_style(m_wxwindow, style);
3915 else
3916 gtk_widget_modify_style(m_widget, style);
3917 }
3918
3919 bool wxWindowGTK::SetBackgroundStyle(wxBackgroundStyle style)
3920 {
3921 wxWindowBase::SetBackgroundStyle(style);
3922
3923 if ( style == wxBG_STYLE_PAINT )
3924 {
3925 GdkWindow *window;
3926 if ( m_wxwindow )
3927 {
3928 window = m_wxwindow->window;
3929 }
3930 else
3931 {
3932 GtkWidget * const w = GetConnectWidget();
3933 window = w ? w->window : NULL;
3934 }
3935
3936 if (window)
3937 {
3938 // Make sure GDK/X11 doesn't refresh the window
3939 // automatically.
3940 gdk_window_set_back_pixmap( window, None, False );
3941 #ifdef __X__
3942 Display* display = GDK_WINDOW_DISPLAY(window);
3943 XFlush(display);
3944 #endif
3945 m_needsStyleChange = false;
3946 }
3947 else // window not realized yet
3948 {
3949 // Do in OnIdle, because the window is not yet available
3950 m_needsStyleChange = true;
3951 }
3952
3953 // Don't apply widget style, or we get a grey background
3954 }
3955 else
3956 {
3957 // apply style change (forceStyle=true so that new style is applied
3958 // even if the bg colour changed from valid to wxNullColour):
3959 GTKApplyWidgetStyle(true);
3960 }
3961
3962 return true;
3963 }
3964
3965 // ----------------------------------------------------------------------------
3966 // Pop-up menu stuff
3967 // ----------------------------------------------------------------------------
3968
3969 #if wxUSE_MENUS_NATIVE
3970
3971 static void SetInvokingWindow( wxMenu *menu, wxWindow* win )
3972 {
3973 menu->SetInvokingWindow( win );
3974
3975 wxMenuItemList::compatibility_iterator node = menu->GetMenuItems().GetFirst();
3976 while (node)
3977 {
3978 wxMenuItem *menuitem = node->GetData();
3979 if (menuitem->IsSubMenu())
3980 {
3981 SetInvokingWindow( menuitem->GetSubMenu(), win );
3982 }
3983
3984 node = node->GetNext();
3985 }
3986 }
3987
3988 extern "C" {
3989 static
3990 void wxPopupMenuPositionCallback( GtkMenu *menu,
3991 gint *x, gint *y,
3992 gboolean * WXUNUSED(whatever),
3993 gpointer user_data )
3994 {
3995 // ensure that the menu appears entirely on screen
3996 GtkRequisition req;
3997 gtk_widget_get_child_requisition(GTK_WIDGET(menu), &req);
3998
3999 wxSize sizeScreen = wxGetDisplaySize();
4000 wxPoint *pos = (wxPoint*)user_data;
4001
4002 gint xmax = sizeScreen.x - req.width,
4003 ymax = sizeScreen.y - req.height;
4004
4005 *x = pos->x < xmax ? pos->x : xmax;
4006 *y = pos->y < ymax ? pos->y : ymax;
4007 }
4008 }
4009
4010 bool wxWindowGTK::DoPopupMenu( wxMenu *menu, int x, int y )
4011 {
4012 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
4013
4014 wxCHECK_MSG( menu != NULL, false, wxT("invalid popup-menu") );
4015
4016 SetInvokingWindow( menu, this );
4017
4018 menu->UpdateUI();
4019
4020 wxPoint pos;
4021 gpointer userdata;
4022 GtkMenuPositionFunc posfunc;
4023 if ( x == -1 && y == -1 )
4024 {
4025 // use GTK's default positioning algorithm
4026 userdata = NULL;
4027 posfunc = NULL;
4028 }
4029 else
4030 {
4031 pos = ClientToScreen(wxPoint(x, y));
4032 userdata = &pos;
4033 posfunc = wxPopupMenuPositionCallback;
4034 }
4035
4036 menu->m_popupShown = true;
4037 gtk_menu_popup(
4038 GTK_MENU(menu->m_menu),
4039 NULL, // parent menu shell
4040 NULL, // parent menu item
4041 posfunc, // function to position it
4042 userdata, // client data
4043 0, // button used to activate it
4044 gtk_get_current_event_time()
4045 );
4046
4047 while (menu->m_popupShown)
4048 {
4049 gtk_main_iteration();
4050 }
4051
4052 return true;
4053 }
4054
4055 #endif // wxUSE_MENUS_NATIVE
4056
4057 #if wxUSE_DRAG_AND_DROP
4058
4059 void wxWindowGTK::SetDropTarget( wxDropTarget *dropTarget )
4060 {
4061 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4062
4063 GtkWidget *dnd_widget = GetConnectWidget();
4064
4065 if (m_dropTarget) m_dropTarget->GtkUnregisterWidget( dnd_widget );
4066
4067 if (m_dropTarget) delete m_dropTarget;
4068 m_dropTarget = dropTarget;
4069
4070 if (m_dropTarget) m_dropTarget->GtkRegisterWidget( dnd_widget );
4071 }
4072
4073 #endif // wxUSE_DRAG_AND_DROP
4074
4075 GtkWidget* wxWindowGTK::GetConnectWidget()
4076 {
4077 GtkWidget *connect_widget = m_widget;
4078 if (m_wxwindow) connect_widget = m_wxwindow;
4079
4080 return connect_widget;
4081 }
4082
4083 bool wxWindowGTK::GTKIsOwnWindow(GdkWindow *window) const
4084 {
4085 wxArrayGdkWindows windowsThis;
4086 GdkWindow * const winThis = GTKGetWindow(windowsThis);
4087
4088 return winThis ? window == winThis
4089 : windowsThis.Index(window) != wxNOT_FOUND;
4090 }
4091
4092 GdkWindow *wxWindowGTK::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
4093 {
4094 return m_wxwindow ? m_wxwindow->window : m_widget->window;
4095 }
4096
4097 bool wxWindowGTK::SetFont( const wxFont &font )
4098 {
4099 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
4100
4101 if (!wxWindowBase::SetFont(font))
4102 return false;
4103
4104 // apply style change (forceStyle=true so that new style is applied
4105 // even if the font changed from valid to wxNullFont):
4106 GTKApplyWidgetStyle(true);
4107
4108 return true;
4109 }
4110
4111 void wxWindowGTK::DoCaptureMouse()
4112 {
4113 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4114
4115 GdkWindow *window = NULL;
4116 if (m_wxwindow)
4117 window = m_wxwindow->window;
4118 else
4119 window = GetConnectWidget()->window;
4120
4121 wxCHECK_RET( window, wxT("CaptureMouse() failed") );
4122
4123 const wxCursor* cursor = &m_cursor;
4124 if (!cursor->Ok())
4125 cursor = wxSTANDARD_CURSOR;
4126
4127 gdk_pointer_grab( window, FALSE,
4128 (GdkEventMask)
4129 (GDK_BUTTON_PRESS_MASK |
4130 GDK_BUTTON_RELEASE_MASK |
4131 GDK_POINTER_MOTION_HINT_MASK |
4132 GDK_POINTER_MOTION_MASK),
4133 NULL,
4134 cursor->GetCursor(),
4135 (guint32)GDK_CURRENT_TIME );
4136 g_captureWindow = this;
4137 g_captureWindowHasMouse = true;
4138 }
4139
4140 void wxWindowGTK::DoReleaseMouse()
4141 {
4142 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4143
4144 wxCHECK_RET( g_captureWindow, wxT("can't release mouse - not captured") );
4145
4146 g_captureWindow = NULL;
4147
4148 GdkWindow *window = NULL;
4149 if (m_wxwindow)
4150 window = m_wxwindow->window;
4151 else
4152 window = GetConnectWidget()->window;
4153
4154 if (!window)
4155 return;
4156
4157 gdk_pointer_ungrab ( (guint32)GDK_CURRENT_TIME );
4158 }
4159
4160 void wxWindowGTK::GTKReleaseMouseAndNotify()
4161 {
4162 DoReleaseMouse();
4163 wxMouseCaptureLostEvent evt(GetId());
4164 evt.SetEventObject( this );
4165 HandleWindowEvent( evt );
4166 }
4167
4168 /* static */
4169 wxWindow *wxWindowBase::GetCapture()
4170 {
4171 return (wxWindow *)g_captureWindow;
4172 }
4173
4174 bool wxWindowGTK::IsRetained() const
4175 {
4176 return false;
4177 }
4178
4179 void wxWindowGTK::SetScrollbar(int orient,
4180 int pos,
4181 int thumbVisible,
4182 int range,
4183 bool WXUNUSED(update))
4184 {
4185 const int dir = ScrollDirFromOrient(orient);
4186 GtkRange* const sb = m_scrollBar[dir];
4187 wxCHECK_RET( sb, wxT("this window is not scrollable") );
4188
4189 if (range <= 0)
4190 {
4191 // GtkRange requires upper > lower
4192 range =
4193 thumbVisible = 1;
4194 }
4195
4196 GtkAdjustment * const adj = sb->adjustment;
4197 adj->step_increment = 1;
4198 adj->page_increment =
4199 adj->page_size = thumbVisible;
4200 adj->value = pos;
4201
4202 g_signal_handlers_block_by_func(
4203 sb, (void*)gtk_scrollbar_value_changed, this);
4204
4205 gtk_range_set_range(sb, 0, range);
4206 m_scrollPos[dir] = sb->adjustment->value;
4207
4208 g_signal_handlers_unblock_by_func(
4209 sb, (void*)gtk_scrollbar_value_changed, this);
4210 }
4211
4212 void wxWindowGTK::SetScrollPos(int orient, int pos, bool WXUNUSED(refresh))
4213 {
4214 const int dir = ScrollDirFromOrient(orient);
4215 GtkRange * const sb = m_scrollBar[dir];
4216 wxCHECK_RET( sb, wxT("this window is not scrollable") );
4217
4218 // This check is more than an optimization. Without it, the slider
4219 // will not move smoothly while tracking when using wxScrollHelper.
4220 if (GetScrollPos(orient) != pos)
4221 {
4222 g_signal_handlers_block_by_func(
4223 sb, (void*)gtk_scrollbar_value_changed, this);
4224
4225 gtk_range_set_value(sb, pos);
4226 m_scrollPos[dir] = sb->adjustment->value;
4227
4228 g_signal_handlers_unblock_by_func(
4229 sb, (void*)gtk_scrollbar_value_changed, this);
4230 }
4231 }
4232
4233 int wxWindowGTK::GetScrollThumb(int orient) const
4234 {
4235 GtkRange * const sb = m_scrollBar[ScrollDirFromOrient(orient)];
4236 wxCHECK_MSG( sb, 0, wxT("this window is not scrollable") );
4237
4238 return wxRound(sb->adjustment->page_size);
4239 }
4240
4241 int wxWindowGTK::GetScrollPos( int orient ) const
4242 {
4243 GtkRange * const sb = m_scrollBar[ScrollDirFromOrient(orient)];
4244 wxCHECK_MSG( sb, 0, wxT("this window is not scrollable") );
4245
4246 return wxRound(sb->adjustment->value);
4247 }
4248
4249 int wxWindowGTK::GetScrollRange( int orient ) const
4250 {
4251 GtkRange * const sb = m_scrollBar[ScrollDirFromOrient(orient)];
4252 wxCHECK_MSG( sb, 0, wxT("this window is not scrollable") );
4253
4254 return wxRound(sb->adjustment->upper);
4255 }
4256
4257 // Determine if increment is the same as +/-x, allowing for some small
4258 // difference due to possible inexactness in floating point arithmetic
4259 static inline bool IsScrollIncrement(double increment, double x)
4260 {
4261 wxASSERT(increment > 0);
4262 const double tolerance = 1.0 / 1024;
4263 return fabs(increment - fabs(x)) < tolerance;
4264 }
4265
4266 wxEventType wxWindowGTK::GTKGetScrollEventType(GtkRange* range)
4267 {
4268 wxASSERT(range == m_scrollBar[0] || range == m_scrollBar[1]);
4269
4270 const int barIndex = range == m_scrollBar[1];
4271 GtkAdjustment* adj = range->adjustment;
4272
4273 const int value = wxRound(adj->value);
4274
4275 // save previous position
4276 const double oldPos = m_scrollPos[barIndex];
4277 // update current position
4278 m_scrollPos[barIndex] = adj->value;
4279 // If event should be ignored, or integral position has not changed
4280 if (!m_hasVMT || g_blockEventsOnDrag || value == wxRound(oldPos))
4281 {
4282 return wxEVT_NULL;
4283 }
4284
4285 wxEventType eventType = wxEVT_SCROLL_THUMBTRACK;
4286 if (!m_isScrolling)
4287 {
4288 // Difference from last change event
4289 const double diff = adj->value - oldPos;
4290 const bool isDown = diff > 0;
4291
4292 if (IsScrollIncrement(adj->step_increment, diff))
4293 {
4294 eventType = isDown ? wxEVT_SCROLL_LINEDOWN : wxEVT_SCROLL_LINEUP;
4295 }
4296 else if (IsScrollIncrement(adj->page_increment, diff))
4297 {
4298 eventType = isDown ? wxEVT_SCROLL_PAGEDOWN : wxEVT_SCROLL_PAGEUP;
4299 }
4300 else if (m_mouseButtonDown)
4301 {
4302 // Assume track event
4303 m_isScrolling = true;
4304 }
4305 }
4306 return eventType;
4307 }
4308
4309 void wxWindowGTK::ScrollWindow( int dx, int dy, const wxRect* WXUNUSED(rect) )
4310 {
4311 wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4312
4313 wxCHECK_RET( m_wxwindow != NULL, wxT("window needs client area for scrolling") );
4314
4315 // No scrolling requested.
4316 if ((dx == 0) && (dy == 0)) return;
4317
4318 m_clipPaintRegion = true;
4319
4320 WX_PIZZA(m_wxwindow)->scroll(dx, dy);
4321
4322 m_clipPaintRegion = false;
4323
4324 #if wxUSE_CARET
4325 bool restoreCaret = (GetCaret() != NULL && GetCaret()->IsVisible());
4326 if (restoreCaret)
4327 {
4328 wxRect caretRect(GetCaret()->GetPosition(), GetCaret()->GetSize());
4329 if (dx > 0)
4330 caretRect.width += dx;
4331 else
4332 {
4333 caretRect.x += dx; caretRect.width -= dx;
4334 }
4335 if (dy > 0)
4336 caretRect.height += dy;
4337 else
4338 {
4339 caretRect.y += dy; caretRect.height -= dy;
4340 }
4341
4342 RefreshRect(caretRect);
4343 }
4344 #endif // wxUSE_CARET
4345 }
4346
4347 void wxWindowGTK::GTKScrolledWindowSetBorder(GtkWidget* w, int wxstyle)
4348 {
4349 //RN: Note that static controls usually have no border on gtk, so maybe
4350 //it makes sense to treat that as simply no border at the wx level
4351 //as well...
4352 if (!(wxstyle & wxNO_BORDER) && !(wxstyle & wxBORDER_STATIC))
4353 {
4354 GtkShadowType gtkstyle;
4355
4356 if(wxstyle & wxBORDER_RAISED)
4357 gtkstyle = GTK_SHADOW_OUT;
4358 else if ((wxstyle & wxBORDER_SUNKEN) || (wxstyle & wxBORDER_THEME))
4359 gtkstyle = GTK_SHADOW_IN;
4360 #if 0
4361 // Now obsolete
4362 else if (wxstyle & wxBORDER_DOUBLE)
4363 gtkstyle = GTK_SHADOW_ETCHED_IN;
4364 #endif
4365 else //default
4366 gtkstyle = GTK_SHADOW_IN;
4367
4368 gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(w),
4369 gtkstyle );
4370 }
4371 }
4372
4373 void wxWindowGTK::SetWindowStyleFlag( long style )
4374 {
4375 // Updates the internal variable. NB: Now m_windowStyle bits carry the _new_ style values already
4376 wxWindowBase::SetWindowStyleFlag(style);
4377 }
4378
4379 // Find the wxWindow at the current mouse position, also returning the mouse
4380 // position.
4381 wxWindow* wxFindWindowAtPointer(wxPoint& pt)
4382 {
4383 pt = wxGetMousePosition();
4384 wxWindow* found = wxFindWindowAtPoint(pt);
4385 return found;
4386 }
4387
4388 // Get the current mouse position.
4389 wxPoint wxGetMousePosition()
4390 {
4391 /* This crashes when used within wxHelpContext,
4392 so we have to use the X-specific implementation below.
4393 gint x, y;
4394 GdkModifierType *mask;
4395 (void) gdk_window_get_pointer(NULL, &x, &y, mask);
4396
4397 return wxPoint(x, y);
4398 */
4399
4400 int x, y;
4401 GdkWindow* windowAtPtr = gdk_window_at_pointer(& x, & y);
4402
4403 Display *display = windowAtPtr ? GDK_WINDOW_XDISPLAY(windowAtPtr) : GDK_DISPLAY();
4404 Window rootWindow = RootWindowOfScreen (DefaultScreenOfDisplay(display));
4405 Window rootReturn, childReturn;
4406 int rootX, rootY, winX, winY;
4407 unsigned int maskReturn;
4408
4409 XQueryPointer (display,
4410 rootWindow,
4411 &rootReturn,
4412 &childReturn,
4413 &rootX, &rootY, &winX, &winY, &maskReturn);
4414 return wxPoint(rootX, rootY);
4415
4416 }
4417
4418 GdkWindow* wxWindowGTK::GTKGetDrawingWindow() const
4419 {
4420 GdkWindow* window = NULL;
4421 if (m_wxwindow)
4422 window = m_wxwindow->window;
4423 return window;
4424 }
4425
4426 // ----------------------------------------------------------------------------
4427 // freeze/thaw
4428 // ----------------------------------------------------------------------------
4429
4430 extern "C"
4431 {
4432
4433 // this is called if we attempted to freeze unrealized widget when it finally
4434 // is realized (and so can be frozen):
4435 static void wx_frozen_widget_realize(GtkWidget* w, void* WXUNUSED(data))
4436 {
4437 wxASSERT( w && !GTK_WIDGET_NO_WINDOW(w) );
4438 wxASSERT( GTK_WIDGET_REALIZED(w) );
4439
4440 g_signal_handlers_disconnect_by_func
4441 (
4442 w,
4443 (void*)wx_frozen_widget_realize,
4444 NULL
4445 );
4446
4447 gdk_window_freeze_updates(w->window);
4448 }
4449
4450 } // extern "C"
4451
4452 void wxWindowGTK::GTKFreezeWidget(GtkWidget *w)
4453 {
4454 if ( !w || GTK_WIDGET_NO_WINDOW(w) )
4455 return; // window-less widget, cannot be frozen
4456
4457 if ( !GTK_WIDGET_REALIZED(w) )
4458 {
4459 // we can't thaw unrealized widgets because they don't have GdkWindow,
4460 // so set it up to be done immediately after realization:
4461 g_signal_connect_after
4462 (
4463 w,
4464 "realize",
4465 G_CALLBACK(wx_frozen_widget_realize),
4466 NULL
4467 );
4468 return;
4469 }
4470
4471 gdk_window_freeze_updates(w->window);
4472 }
4473
4474 void wxWindowGTK::GTKThawWidget(GtkWidget *w)
4475 {
4476 if ( !w || GTK_WIDGET_NO_WINDOW(w) )
4477 return; // window-less widget, cannot be frozen
4478
4479 if ( !GTK_WIDGET_REALIZED(w) )
4480 {
4481 // the widget wasn't realized yet, no need to thaw
4482 g_signal_handlers_disconnect_by_func
4483 (
4484 w,
4485 (void*)wx_frozen_widget_realize,
4486 NULL
4487 );
4488 return;
4489 }
4490
4491 gdk_window_thaw_updates(w->window);
4492 }
4493
4494 void wxWindowGTK::DoFreeze()
4495 {
4496 GTKFreezeWidget(m_widget);
4497 if ( m_wxwindow && m_widget != m_wxwindow )
4498 GTKFreezeWidget(m_wxwindow);
4499 }
4500
4501 void wxWindowGTK::DoThaw()
4502 {
4503 GTKThawWidget(m_widget);
4504 if ( m_wxwindow && m_widget != m_wxwindow )
4505 GTKThawWidget(m_wxwindow);
4506 }
wxWidgets (Impactor)