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