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