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set m_isBeingDeleted to true (only) in SendDestroyEvent(); call it as early as possib...
[wxWidgets.git] / src / mgl / window.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/mgl/window.cpp
3 // Purpose: wxWindow
4 // Author: Vaclav Slavik
5 // (based on GTK & MSW implementations)
6 // RCS-ID: $Id$
7 // Copyright: (c) 2001-2002 SciTech Software, Inc. (www.scitechsoft.com)
8 // Licence: wxWindows licence
9 /////////////////////////////////////////////////////////////////////////////
10
11 // ===========================================================================
12 // declarations
13 // ===========================================================================
14
15 // ---------------------------------------------------------------------------
16 // headers
17 // ---------------------------------------------------------------------------
18
19 // For compilers that support precompilation, includes "wx.h".
20 #include "wx/wxprec.h"
21
22 #ifdef __BORLANDC__
23 #pragma hdrstop
24 #endif
25
26 #include "wx/window.h"
27
28 #ifndef WX_PRECOMP
29 #include "wx/msgdlg.h"
30 #include "wx/accel.h"
31 #include "wx/dc.h"
32 #include "wx/dcclient.h"
33 #include "wx/utils.h"
34 #include "wx/app.h"
35 #include "wx/panel.h"
36 #include "wx/intl.h"
37 #include "wx/log.h"
38 #include "wx/dcscreen.h"
39 #include "wx/menu.h"
40 #endif
41
42 #if wxUSE_DRAG_AND_DROP
43 #include "wx/dnd.h"
44 #endif
45
46 #include "wx/sysopt.h"
47 #include "wx/mgl/private.h"
48 #include "wx/caret.h"
49
50 #include <mgraph.hpp>
51
52 #if wxUSE_TOOLTIPS
53 #include "wx/tooltip.h"
54 #endif
55
56 // ---------------------------------------------------------------------------
57 // global variables
58 // ---------------------------------------------------------------------------
59
60 // MGL window manager and associated DC.
61 winmng_t *g_winMng = NULL;
62 MGLDevCtx *g_displayDC = NULL;
63
64 // the window that has keyboard focus:
65 static wxWindowMGL *gs_focusedWindow = NULL;
66 // the window that is about to be focused after currently focused
67 // one looses focus:
68 static wxWindow *gs_toBeFocusedWindow = NULL;
69 // the window that is currently under mouse cursor:
70 static wxWindowMGL *gs_windowUnderMouse = NULL;
71 // the window that has mouse capture
72 static wxWindowMGL *gs_mouseCapture = NULL;
73 // the frame that is currently active (i.e. its child has focus). It is
74 // used to generate wxActivateEvents
75 static wxWindowMGL *gs_activeFrame = NULL;
76 // track the mouse button state for wxGetMouseState()
77 unsigned long g_buttonState = 0;
78
79 // ---------------------------------------------------------------------------
80 // constants
81 // ---------------------------------------------------------------------------
82
83 // Custom identifiers used to distinguish between various event handlers
84 // and capture handlers passed to MGL_wm
85 enum
86 {
87 wxMGL_CAPTURE_MOUSE = 1,
88 wxMGL_CAPTURE_KEYB = 2
89 };
90
91
92 // ---------------------------------------------------------------------------
93 // private functions
94 // ---------------------------------------------------------------------------
95
96 // Returns toplevel grandparent of given window:
97 static wxWindowMGL* wxGetTopLevelParent(wxWindowMGL *win)
98 {
99 wxWindowMGL *p = win;
100 while (p && !p->IsTopLevel())
101 p = p->GetParent();
102 return p;
103 }
104
105 // An easy way to capture screenshots:
106 static void wxCaptureScreenshot(bool activeWindowOnly)
107 {
108 #ifdef __DOS__
109 #define SCREENSHOT_FILENAME _T("sshot%03i.png")
110 #else
111 #define SCREENSHOT_FILENAME _T("screenshot-%03i.png")
112 #endif
113 static int screenshot_num = 0;
114 wxString screenshot;
115
116 do
117 {
118 screenshot.Printf(SCREENSHOT_FILENAME, screenshot_num++);
119 } while ( wxFileExists(screenshot) && screenshot_num < 1000 );
120
121 wxRect r(0, 0, g_displayDC->sizex(), g_displayDC->sizey());
122
123 if ( activeWindowOnly && gs_activeFrame )
124 {
125 r.Intersect(gs_activeFrame->GetRect());
126 }
127
128 g_displayDC->savePNGFromDC(screenshot.mb_str(),
129 r.x, r. y, r.x+r.width, r.y+r.height);
130
131 wxMessageBox(wxString::Format(_T("Screenshot captured: %s"),
132 screenshot.c_str()));
133 }
134
135 // ---------------------------------------------------------------------------
136 // MGL_WM hooks:
137 // ---------------------------------------------------------------------------
138
139 static void MGLAPI wxWindowPainter(window_t *wnd, MGLDC *dc)
140 {
141 wxWindowMGL *w = (wxWindow*) wnd->userData;
142
143 if ( w && !(w->GetWindowStyle() & wxTRANSPARENT_WINDOW) )
144 {
145 MGLDevCtx ctx(dc);
146 w->HandlePaint(&ctx);
147 }
148 }
149
150 static ibool MGLAPI wxWindowMouseHandler(window_t *wnd, event_t *e)
151 {
152 wxWindowMGL *win = (wxWindowMGL*)MGL_wmGetWindowUserData(wnd);
153 wxPoint orig(win->GetClientAreaOrigin());
154 wxPoint where;
155
156 g_buttonState = e->modifiers;
157
158 MGL_wmCoordGlobalToLocal(win->GetHandle(),
159 e->where_x, e->where_y, &where.x, &where.y);
160
161 for (wxWindowMGL *w = win; w; w = w->GetParent())
162 {
163 if ( !w->IsEnabled() )
164 return FALSE;
165 if ( w->IsTopLevel() )
166 break;
167 }
168
169 wxEventType type = wxEVT_NULL;
170 wxMouseEvent event;
171 event.SetEventObject(win);
172 event.SetTimestamp(e->when);
173 event.m_x = where.x - orig.x;
174 event.m_y = where.y - orig.y;
175 event.m_shiftDown = ( e->modifiers & EVT_SHIFTKEY ) != 0;
176 event.m_controlDown = ( e->modifiers & EVT_CTRLSTATE ) != 0;
177 event.m_altDown = ( e->modifiers & EVT_LEFTALT ) != 0;
178 event.m_metaDown = ( e->modifiers & EVT_RIGHTALT ) != 0;
179 event.m_leftDown = ( e->modifiers & EVT_LEFTBUT ) != 0;
180 event.m_middleDown = ( e->modifiers & EVT_MIDDLEBUT ) != 0;
181 event.m_rightDown = ( e->modifiers & EVT_RIGHTBUT ) != 0;
182
183 switch (e->what)
184 {
185 case EVT_MOUSEDOWN:
186 // Change focus if the user clicks outside focused window:
187 if ( win->CanAcceptFocus() && wxWindow::FindFocus() != win )
188 win->SetFocus();
189
190 if ( e->message & EVT_DBLCLICK )
191 {
192 if ( e->message & EVT_LEFTBMASK )
193 type = wxEVT_LEFT_DCLICK;
194 else if ( e->message & EVT_MIDDLEBMASK )
195 type = wxEVT_MIDDLE_DCLICK;
196 else if ( e->message & EVT_RIGHTBMASK )
197 type = wxEVT_RIGHT_DCLICK;
198 }
199 else
200 {
201 if ( e->message & EVT_LEFTBMASK )
202 type = wxEVT_LEFT_DOWN;
203 else if ( e->message & EVT_MIDDLEBMASK )
204 type = wxEVT_MIDDLE_DOWN;
205 else if ( e->message & EVT_RIGHTBMASK )
206 type = wxEVT_RIGHT_DOWN;
207 }
208
209 break;
210
211 case EVT_MOUSEUP:
212 if ( e->message & EVT_LEFTBMASK )
213 type = wxEVT_LEFT_UP;
214 else if ( e->message & EVT_MIDDLEBMASK )
215 type = wxEVT_MIDDLE_UP;
216 else if ( e->message & EVT_RIGHTBMASK )
217 type = wxEVT_RIGHT_UP;
218 break;
219
220 case EVT_MOUSEMOVE:
221 if ( !gs_mouseCapture )
222 {
223 if ( win != gs_windowUnderMouse )
224 {
225 if ( gs_windowUnderMouse )
226 {
227 wxMouseEvent event2(event);
228 MGL_wmCoordGlobalToLocal(gs_windowUnderMouse->GetHandle(),
229 e->where_x, e->where_y,
230 &event2.m_x, &event2.m_y);
231
232 wxPoint orig(gs_windowUnderMouse->GetClientAreaOrigin());
233 event2.m_x -= orig.x;
234 event2.m_y -= orig.y;
235
236 event2.SetEventObject(gs_windowUnderMouse);
237 event2.SetEventType(wxEVT_LEAVE_WINDOW);
238 gs_windowUnderMouse->HandleWindowEvent(event2);
239 }
240
241 wxMouseEvent event3(event);
242 event3.SetEventType(wxEVT_ENTER_WINDOW);
243 win->HandleWindowEvent(event3);
244
245 gs_windowUnderMouse = win;
246 }
247 }
248 else // gs_mouseCapture
249 {
250 bool inside = (where.x >= 0 &&
251 where.y >= 0 &&
252 where.x < win->GetSize().x &&
253 where.y < win->GetSize().y);
254 if ( (inside && gs_windowUnderMouse != win) ||
255 (!inside && gs_windowUnderMouse == win) )
256 {
257 wxMouseEvent evt(inside ?
258 wxEVT_ENTER_WINDOW : wxEVT_LEAVE_WINDOW);
259 evt.SetEventObject(win);
260 win->HandleWindowEvent(evt);
261 gs_windowUnderMouse = inside ? win : NULL;
262 }
263 }
264
265 type = wxEVT_MOTION;
266 break;
267
268 default:
269 break;
270 }
271
272 if ( type == wxEVT_NULL )
273 {
274 return FALSE;
275 }
276 else
277 {
278 event.SetEventType(type);
279 return win->HandleWindowEvent(event);
280 }
281 }
282
283 static long wxScanToKeyCode(event_t *event, bool translate)
284 {
285 // VS: make it __WXDEBUG__-only, since we have lots of wxLogTrace calls
286 // here and the arguments would be stored in non-debug executable even
287 // though wxLogTrace would be no-op...
288 #ifdef __WXDEBUG__
289 #define KEY(mgl_key,wx_key) \
290 case mgl_key: \
291 wxLogTrace(_T("keyevents"), \
292 _T("key " #mgl_key ", mapped to " #wx_key)); \
293 key = wx_key; \
294 break;
295 #else
296 #define KEY(mgl_key,wx_key) \
297 case mgl_key: key = wx_key; break;
298 #endif
299
300 long key = 0;
301
302 if ( translate )
303 {
304 bool numlock = (event->modifiers & EVT_NUMLOCK) != 0;
305
306 switch ( EVT_scanCode(event->message) )
307 {
308 KEY (KB_padMinus, WXK_NUMPAD_SUBTRACT)
309 KEY (KB_padPlus, WXK_NUMPAD_ADD)
310 KEY (KB_padTimes, WXK_NUMPAD_MULTIPLY)
311 KEY (KB_padDivide, WXK_NUMPAD_DIVIDE)
312 KEY (KB_padCenter, numlock ? WXK_NUMPAD5 : WXK_NUMPAD_SEPARATOR) // ?
313 KEY (KB_padLeft, numlock ? WXK_NUMPAD4 : WXK_NUMPAD_LEFT)
314 KEY (KB_padRight, numlock ? WXK_NUMPAD6 : WXK_NUMPAD_RIGHT)
315 KEY (KB_padUp, numlock ? WXK_NUMPAD8 : WXK_NUMPAD_UP)
316 KEY (KB_padDown, numlock ? WXK_NUMPAD2 : WXK_NUMPAD_DOWN)
317 KEY (KB_padInsert, numlock ? WXK_NUMPAD0 : WXK_NUMPAD_INSERT)
318 KEY (KB_padDelete, numlock ? WXK_DECIMAL : WXK_NUMPAD_DELETE)
319 KEY (KB_padHome, numlock ? WXK_NUMPAD7 : WXK_NUMPAD_HOME)
320 KEY (KB_padEnd, numlock ? WXK_NUMPAD1 : WXK_NUMPAD_END)
321 KEY (KB_padPageUp, numlock ? WXK_NUMPAD9 : WXK_NUMPAD_PAGEUP)
322 KEY (KB_padPageDown, numlock ? WXK_NUMPAD3 : WXK_NUMPAD_PAGEDOWN)
323 KEY (KB_1, '1')
324 KEY (KB_2, '2')
325 KEY (KB_3, '3')
326 KEY (KB_4, '4')
327 KEY (KB_5, '5')
328 KEY (KB_6, '6')
329 KEY (KB_7, '7')
330 KEY (KB_8, '8')
331 KEY (KB_9, '9')
332 KEY (KB_0, '0')
333 KEY (KB_minus, WXK_SUBTRACT)
334 KEY (KB_equals, WXK_ADD)
335 KEY (KB_backSlash, '\\')
336 KEY (KB_Q, 'Q')
337 KEY (KB_W, 'W')
338 KEY (KB_E, 'E')
339 KEY (KB_R, 'R')
340 KEY (KB_T, 'T')
341 KEY (KB_Y, 'Y')
342 KEY (KB_U, 'U')
343 KEY (KB_I, 'I')
344 KEY (KB_O, 'O')
345 KEY (KB_P, 'P')
346 KEY (KB_leftSquareBrace,'[')
347 KEY (KB_rightSquareBrace,']')
348 KEY (KB_A, 'A')
349 KEY (KB_S, 'S')
350 KEY (KB_D, 'D')
351 KEY (KB_F, 'F')
352 KEY (KB_G, 'G')
353 KEY (KB_H, 'H')
354 KEY (KB_J, 'J')
355 KEY (KB_K, 'K')
356 KEY (KB_L, 'L')
357 KEY (KB_semicolon, ';')
358 KEY (KB_apostrophe, '\'')
359 KEY (KB_Z, 'Z')
360 KEY (KB_X, 'X')
361 KEY (KB_C, 'C')
362 KEY (KB_V, 'V')
363 KEY (KB_B, 'B')
364 KEY (KB_N, 'N')
365 KEY (KB_M, 'M')
366 KEY (KB_comma, ',')
367 KEY (KB_period, '.')
368 KEY (KB_divide, WXK_DIVIDE)
369 KEY (KB_space, WXK_SPACE)
370 KEY (KB_tilde, '~')
371
372 default: break;
373 }
374 }
375
376 if ( key == 0 )
377 {
378 switch ( EVT_scanCode(event->message) )
379 {
380 KEY (KB_padEnter, WXK_NUMPAD_ENTER)
381 KEY (KB_F1, WXK_F1)
382 KEY (KB_F2, WXK_F2)
383 KEY (KB_F3, WXK_F3)
384 KEY (KB_F4, WXK_F4)
385 KEY (KB_F5, WXK_F5)
386 KEY (KB_F6, WXK_F6)
387 KEY (KB_F7, WXK_F7)
388 KEY (KB_F8, WXK_F8)
389 KEY (KB_F9, WXK_F9)
390 KEY (KB_F10, WXK_F10)
391 KEY (KB_F11, WXK_F11)
392 KEY (KB_F12, WXK_F12)
393 KEY (KB_left, WXK_LEFT)
394 KEY (KB_right, WXK_RIGHT)
395 KEY (KB_up, WXK_UP)
396 KEY (KB_down, WXK_DOWN)
397 KEY (KB_insert, WXK_INSERT)
398 KEY (KB_delete, WXK_DELETE)
399 KEY (KB_home, WXK_HOME)
400 KEY (KB_end, WXK_END)
401 KEY (KB_pageUp, WXK_PAGEUP)
402 KEY (KB_pageDown, WXK_PAGEDOWN)
403 KEY (KB_capsLock, WXK_CAPITAL)
404 KEY (KB_numLock, WXK_NUMLOCK)
405 KEY (KB_scrollLock, WXK_SCROLL)
406 KEY (KB_leftShift, WXK_SHIFT)
407 KEY (KB_rightShift, WXK_SHIFT)
408 KEY (KB_leftCtrl, WXK_CONTROL)
409 KEY (KB_rightCtrl, WXK_CONTROL)
410 KEY (KB_leftAlt, WXK_ALT)
411 KEY (KB_rightAlt, WXK_ALT)
412 KEY (KB_leftWindows, WXK_START)
413 KEY (KB_rightWindows, WXK_START)
414 KEY (KB_menu, WXK_MENU)
415 KEY (KB_sysReq, WXK_SNAPSHOT)
416 KEY (KB_esc, WXK_ESCAPE)
417 KEY (KB_backspace, WXK_BACK)
418 KEY (KB_tab, WXK_TAB)
419 KEY (KB_enter, WXK_RETURN)
420
421 default:
422 key = EVT_asciiCode(event->message);
423 break;
424 }
425 }
426
427 #undef KEY
428
429 return key;
430 }
431
432 static bool wxHandleSpecialKeys(wxKeyEvent& event)
433 {
434 // Add an easy way to capture screenshots:
435 if ( event.m_keyCode == WXK_SNAPSHOT
436 #ifdef __WXDEBUG__ // FIXME_MGL - remove when KB_sysReq works in MGL!
437 || (event.m_keyCode == WXK_F1 &&
438 event.m_shiftDown && event.m_controlDown)
439 #endif
440 )
441 {
442 wxCaptureScreenshot(event.m_altDown/*only active wnd?*/);
443 return true;
444 }
445
446 return false;
447 }
448
449 static ibool MGLAPI wxWindowKeybHandler(window_t *wnd, event_t *e)
450 {
451 wxWindowMGL *win = (wxWindowMGL*)MGL_wmGetWindowUserData(wnd);
452
453 if ( !win->IsEnabled() ) return FALSE;
454
455 wxPoint where;
456 MGL_wmCoordGlobalToLocal(win->GetHandle(),
457 e->where_x, e->where_y, &where.x, &where.y);
458
459 wxKeyEvent event;
460 event.SetEventObject(win);
461 event.SetTimestamp(e->when);
462 event.m_keyCode = wxScanToKeyCode(e, true);
463 event.m_scanCode = 0; // not used by wx at all
464 event.m_x = where.x;
465 event.m_y = where.y;
466 event.m_shiftDown = ( e->modifiers & EVT_SHIFTKEY ) != 0;
467 event.m_controlDown = ( e->modifiers & EVT_CTRLSTATE ) != 0;
468 event.m_altDown = ( e->modifiers & EVT_LEFTALT ) != 0;
469 event.m_metaDown = ( e->modifiers & EVT_RIGHTALT ) != 0;
470
471 if ( e->what == EVT_KEYUP )
472 {
473 event.SetEventType(wxEVT_KEY_UP);
474 return win->HandleWindowEvent(event);
475 }
476 else
477 {
478 bool ret;
479 wxKeyEvent event2;
480
481 event.SetEventType(wxEVT_KEY_DOWN);
482 event2 = event;
483
484 ret = win->HandleWindowEvent(event);
485
486 // wxMSW doesn't send char events with Alt pressed
487 // Only send wxEVT_CHAR event if not processed yet. Thus, ALT-x
488 // will only be sent if it is not in an accelerator table:
489 event2.m_keyCode = wxScanToKeyCode(e, false);
490 if ( !ret && event2.m_keyCode != 0 )
491 {
492 event2.SetEventType(wxEVT_CHAR);
493 ret = win->HandleWindowEvent(event2);
494 }
495
496 // Synthetize navigation key event, but do it only if the TAB key
497 // wasn't handled yet:
498 if ( !ret && event.m_keyCode == WXK_TAB &&
499 win->GetParent() && win->GetParent()->HasFlag(wxTAB_TRAVERSAL) )
500 {
501 wxNavigationKeyEvent navEvent;
502 navEvent.SetEventObject(win->GetParent());
503 // Shift-TAB goes in reverse direction:
504 navEvent.SetDirection(!event.m_shiftDown);
505 // Ctrl-TAB changes the (parent) window, i.e. switch notebook page:
506 navEvent.SetWindowChange(event.m_controlDown);
507 navEvent.SetCurrentFocus(wxStaticCast(win, wxWindow));
508 ret = win->HandleWindowEvent(navEvent);
509 }
510
511 // Finally, process special meaning keys that are usually
512 // a responsibility of OS or window manager:
513 if ( !ret )
514 ret = wxHandleSpecialKeys(event);
515
516 return ret;
517 }
518 }
519
520 // ---------------------------------------------------------------------------
521 // event tables
522 // ---------------------------------------------------------------------------
523
524 // in wxUniv this class is abstract because it doesn't have DoPopupMenu()
525 IMPLEMENT_ABSTRACT_CLASS(wxWindowMGL, wxWindowBase)
526
527 BEGIN_EVENT_TABLE(wxWindowMGL, wxWindowBase)
528 END_EVENT_TABLE()
529
530 // ===========================================================================
531 // implementation
532 // ===========================================================================
533
534 // ----------------------------------------------------------------------------
535 // constructors and such
536 // ----------------------------------------------------------------------------
537
538 extern wxVideoMode wxGetDefaultDisplayMode();
539
540 void wxWindowMGL::Init()
541 {
542 // First of all, make sure window manager is up and running. If it is
543 // not the case, initialize it in default display mode
544 if ( !g_winMng )
545 {
546 if ( !wxTheApp->SetDisplayMode(wxGetDefaultDisplayMode()) )
547 wxLogFatalError(_("Cannot initialize display."));
548 }
549
550 // mgl specific:
551 m_wnd = NULL;
552 m_isShown = true;
553 m_paintMGLDC = NULL;
554 m_eraseBackground = -1;
555 }
556
557 // Destructor
558 wxWindowMGL::~wxWindowMGL()
559 {
560 SendDestroyEvent();
561
562 if ( gs_mouseCapture == this )
563 ReleaseMouse();
564
565 if (gs_activeFrame == this)
566 {
567 gs_activeFrame = NULL;
568 // activate next frame in Z-order:
569 if ( m_wnd->prev )
570 {
571 wxWindowMGL *win = (wxWindowMGL*)m_wnd->prev->userData;
572 win->SetFocus();
573 }
574 else if ( m_wnd->next )
575 {
576 wxWindowMGL *win = (wxWindowMGL*)m_wnd->next->userData;
577 win->SetFocus();
578 }
579 }
580
581 if ( gs_focusedWindow == this )
582 KillFocus();
583
584 if ( gs_windowUnderMouse == this )
585 gs_windowUnderMouse = NULL;
586
587 DestroyChildren();
588
589 if ( m_wnd )
590 MGL_wmDestroyWindow(m_wnd);
591 }
592
593 // real construction (Init() must have been called before!)
594 bool wxWindowMGL::Create(wxWindow *parent,
595 wxWindowID id,
596 const wxPoint& pos,
597 const wxSize& size,
598 long style,
599 const wxString& name)
600 {
601 if ( !CreateBase(parent, id, pos, size, style, wxDefaultValidator, name) )
602 return false;
603
604 if ( parent )
605 parent->AddChild(this);
606
607 int x, y, w, h;
608 x = pos.x, y = pos.y;
609 if ( x == -1 )
610 x = 0; // FIXME_MGL, something better, see GTK+
611 if ( y == -1 )
612 y = 0; // FIXME_MGL, something better, see GTK+
613 AdjustForParentClientOrigin(x, y, 0);
614 w = WidthDefault(size.x);
615 h = HeightDefault(size.y);
616
617 long mgl_style = 0;
618 window_t *wnd_parent = parent ? parent->GetHandle() : NULL;
619
620 if ( style & wxFULL_REPAINT_ON_RESIZE )
621 {
622 mgl_style |= MGL_WM_FULL_REPAINT_ON_RESIZE;
623 }
624 if ( style & wxSTAY_ON_TOP )
625 {
626 mgl_style |= MGL_WM_ALWAYS_ON_TOP;
627 }
628 if ( style & wxPOPUP_WINDOW )
629 {
630 mgl_style |= MGL_WM_ALWAYS_ON_TOP;
631 // it is created hidden as other top level windows
632 m_isShown = false;
633 wnd_parent = NULL;
634 }
635
636 window_t *wnd = MGL_wmCreateWindow(g_winMng, wnd_parent, x, y, w, h);
637
638 MGL_wmSetWindowFlags(wnd, mgl_style);
639 MGL_wmShowWindow(wnd, m_isShown);
640
641 SetMGLwindow_t(wnd);
642
643 return true;
644 }
645
646 void wxWindowMGL::SetMGLwindow_t(struct window_t *wnd)
647 {
648 if ( m_wnd )
649 MGL_wmDestroyWindow(m_wnd);
650
651 m_wnd = wnd;
652 if ( !m_wnd ) return;
653
654 m_isShown = (bool)m_wnd->visible;
655
656 MGL_wmSetWindowUserData(m_wnd, (void*) this);
657 MGL_wmSetWindowPainter(m_wnd, wxWindowPainter);
658 MGL_wmPushWindowEventHandler(m_wnd, wxWindowMouseHandler, EVT_MOUSEEVT, 0);
659 MGL_wmPushWindowEventHandler(m_wnd, wxWindowKeybHandler, EVT_KEYEVT, 0);
660
661 if ( m_cursor.Ok() )
662 MGL_wmSetWindowCursor(m_wnd, *m_cursor.GetMGLCursor());
663 else
664 MGL_wmSetWindowCursor(m_wnd, *wxSTANDARD_CURSOR->GetMGLCursor());
665 }
666
667 // ---------------------------------------------------------------------------
668 // basic operations
669 // ---------------------------------------------------------------------------
670
671 void wxWindowMGL::SetFocus()
672 {
673 if ( gs_focusedWindow == this ) return;
674
675 wxWindowMGL *oldFocusedWindow = gs_focusedWindow;
676
677 if ( gs_focusedWindow )
678 {
679 gs_toBeFocusedWindow = (wxWindow*)this;
680 gs_focusedWindow->KillFocus();
681 gs_toBeFocusedWindow = NULL;
682 }
683
684 gs_focusedWindow = this;
685
686 MGL_wmCaptureEvents(GetHandle(), EVT_KEYEVT, wxMGL_CAPTURE_KEYB);
687
688 wxWindowMGL *active = wxGetTopLevelParent(this);
689 if ( !(m_windowStyle & wxPOPUP_WINDOW) && active != gs_activeFrame )
690 {
691 if ( gs_activeFrame )
692 {
693 wxActivateEvent event(wxEVT_ACTIVATE, false, gs_activeFrame->GetId());
694 event.SetEventObject(gs_activeFrame);
695 gs_activeFrame->HandleWindowEvent(event);
696 }
697
698 gs_activeFrame = active;
699 wxActivateEvent event(wxEVT_ACTIVATE, true, gs_activeFrame->GetId());
700 event.SetEventObject(gs_activeFrame);
701 gs_activeFrame->HandleWindowEvent(event);
702 }
703
704 // notify the parent keeping track of focus for the kbd navigation
705 // purposes that we got it
706 wxChildFocusEvent eventFocus((wxWindow*)this);
707 HandleWindowEvent(eventFocus);
708
709 wxFocusEvent event(wxEVT_SET_FOCUS, GetId());
710 event.SetEventObject(this);
711 event.SetWindow((wxWindow*)oldFocusedWindow);
712 HandleWindowEvent(event);
713
714 #if wxUSE_CARET
715 // caret needs to be informed about focus change
716 wxCaret *caret = GetCaret();
717 if ( caret )
718 caret->OnSetFocus();
719 #endif // wxUSE_CARET
720 }
721
722 void wxWindowMGL::KillFocus()
723 {
724 if ( gs_focusedWindow != this ) return;
725 gs_focusedWindow = NULL;
726
727 if ( m_isBeingDeleted ) return;
728
729 MGL_wmUncaptureEvents(GetHandle(), wxMGL_CAPTURE_KEYB);
730
731 #if wxUSE_CARET
732 // caret needs to be informed about focus change
733 wxCaret *caret = GetCaret();
734 if ( caret )
735 caret->OnKillFocus();
736 #endif // wxUSE_CARET
737
738 wxFocusEvent event(wxEVT_KILL_FOCUS, GetId());
739 event.SetEventObject(this);
740 event.SetWindow(gs_toBeFocusedWindow);
741 HandleWindowEvent(event);
742 }
743
744 // ----------------------------------------------------------------------------
745 // this wxWindowBase function is implemented here (in platform-specific file)
746 // because it is static and so couldn't be made virtual
747 // ----------------------------------------------------------------------------
748 wxWindow *wxWindowBase::DoFindFocus()
749 {
750 return (wxWindow*)gs_focusedWindow;
751 }
752
753 bool wxWindowMGL::Show(bool show)
754 {
755 if ( !wxWindowBase::Show(show) )
756 return false;
757
758 MGL_wmShowWindow(m_wnd, show);
759
760 if (!show && gs_activeFrame == this)
761 {
762 // activate next frame in Z-order:
763 if ( m_wnd->prev )
764 {
765 wxWindowMGL *win = (wxWindowMGL*)m_wnd->prev->userData;
766 win->SetFocus();
767 }
768 else if ( m_wnd->next )
769 {
770 wxWindowMGL *win = (wxWindowMGL*)m_wnd->next->userData;
771 win->SetFocus();
772 }
773 else
774 {
775 gs_activeFrame = NULL;
776 }
777 }
778
779 return true;
780 }
781
782 // Raise the window to the top of the Z order
783 void wxWindowMGL::Raise()
784 {
785 MGL_wmRaiseWindow(m_wnd);
786 }
787
788 // Lower the window to the bottom of the Z order
789 void wxWindowMGL::Lower()
790 {
791 MGL_wmLowerWindow(m_wnd);
792 }
793
794 void wxWindowMGL::DoCaptureMouse()
795 {
796 if ( gs_mouseCapture )
797 MGL_wmUncaptureEvents(gs_mouseCapture->m_wnd, wxMGL_CAPTURE_MOUSE);
798
799 gs_mouseCapture = this;
800 MGL_wmCaptureEvents(m_wnd, EVT_MOUSEEVT, wxMGL_CAPTURE_MOUSE);
801 }
802
803 void wxWindowMGL::DoReleaseMouse()
804 {
805 wxASSERT_MSG( gs_mouseCapture == this, wxT("attempt to release mouse, but this window hasn't captured it") );
806
807 MGL_wmUncaptureEvents(m_wnd, wxMGL_CAPTURE_MOUSE);
808 gs_mouseCapture = NULL;
809 }
810
811 /* static */ wxWindow *wxWindowBase::GetCapture()
812 {
813 return (wxWindow*)gs_mouseCapture;
814 }
815
816 bool wxWindowMGL::SetCursor(const wxCursor& cursor)
817 {
818 if ( !wxWindowBase::SetCursor(cursor) )
819 {
820 // no change
821 return false;
822 }
823
824 if ( m_cursor.Ok() )
825 MGL_wmSetWindowCursor(m_wnd, *m_cursor.GetMGLCursor());
826 else
827 MGL_wmSetWindowCursor(m_wnd, *wxSTANDARD_CURSOR->GetMGLCursor());
828
829 return true;
830 }
831
832 void wxWindowMGL::WarpPointer(int x, int y)
833 {
834 int w, h;
835 wxDisplaySize(&w, &h);
836
837 ClientToScreen(&x, &y);
838 if ( x < 0 )
839 x = 0;
840 if ( y < 0 )
841 y = 0;
842 if ( x >= w )
843 x = w-1;
844 if ( y >= h )
845 y = h-1;
846
847 EVT_setMousePos(x, y);
848 }
849
850 // Set this window to be the child of 'parent'.
851 bool wxWindowMGL::Reparent(wxWindowBase *parent)
852 {
853 if ( !wxWindowBase::Reparent(parent) )
854 return false;
855
856 MGL_wmReparentWindow(m_wnd, parent->GetHandle());
857
858 return true;
859 }
860
861
862 // ---------------------------------------------------------------------------
863 // drag and drop
864 // ---------------------------------------------------------------------------
865
866 #if wxUSE_DRAG_AND_DROP
867
868 void wxWindowMGL::SetDropTarget(wxDropTarget *pDropTarget)
869 {
870 if ( m_dropTarget != 0 ) {
871 m_dropTarget->Revoke(m_hWnd);
872 delete m_dropTarget;
873 }
874
875 m_dropTarget = pDropTarget;
876 if ( m_dropTarget != 0 )
877 m_dropTarget->Register(m_hWnd);
878 }
879 // FIXME_MGL
880 #endif // wxUSE_DRAG_AND_DROP
881
882 // old style file-manager drag&drop support: we retain the old-style
883 // DragAcceptFiles in parallel with SetDropTarget.
884 void wxWindowMGL::DragAcceptFiles(bool WXUNUSED(accept))
885 {
886 #if 0 // FIXME_MGL
887 HWND hWnd = GetHwnd();
888 if ( hWnd )
889 ::DragAcceptFiles(hWnd, (BOOL)accept);
890 #endif
891 }
892
893 // ---------------------------------------------------------------------------
894 // moving and resizing
895 // ---------------------------------------------------------------------------
896
897 // Get total size
898 void wxWindowMGL::DoGetSize(int *x, int *y) const
899 {
900 wxASSERT_MSG( m_wnd, wxT("invalid window") );
901
902 if (x) *x = m_wnd->width;
903 if (y) *y = m_wnd->height;
904 }
905
906 void wxWindowMGL::DoGetPosition(int *x, int *y) const
907 {
908 wxASSERT_MSG( m_wnd, wxT("invalid window") );
909
910 int pX = 0, pY = 0;
911 AdjustForParentClientOrigin(pX, pY, 0);
912
913 if (x) *x = m_wnd->x - pX;
914 if (y) *y = m_wnd->y - pY;
915 }
916
917 void wxWindowMGL::DoScreenToClient(int *x, int *y) const
918 {
919 int ax, ay;
920 MGL_wmCoordGlobalToLocal(m_wnd, 0, 0, &ax, &ay);
921 if (x)
922 (*x) += ax;
923 if (y)
924 (*y) += ay;
925 }
926
927 void wxWindowMGL::DoClientToScreen(int *x, int *y) const
928 {
929 int ax, ay;
930 MGL_wmCoordLocalToGlobal(m_wnd, 0, 0, &ax, &ay);
931 if (x)
932 (*x) += ax;
933 if (y)
934 (*y) += ay;
935 }
936
937 // Get size *available for subwindows* i.e. excluding menu bar etc.
938 void wxWindowMGL::DoGetClientSize(int *x, int *y) const
939 {
940 DoGetSize(x, y);
941 }
942
943 void wxWindowMGL::DoMoveWindow(int x, int y, int width, int height)
944 {
945 wxRect rcClient(GetClientRect());
946
947 MGL_wmSetWindowPosition(m_wnd, x, y, width, height);
948
949 // When the origin or a window stays fixed but the height or width
950 // changes, invalidate the old and new non-client areas
951 if ( !HasFlag(wxFULL_REPAINT_ON_RESIZE) &&
952 m_wnd->x == x && m_wnd->y == y &&
953 rcClient.Intersect(GetClientRect()) != wxRect(0, 0, width, height) )
954 {
955 wxRegion rgn(0, 0, width, height);
956 rgn.Subtract(rcClient);
957
958 // This should work I think, but doesn't seem to:
959 //MGL_wmInvalidateWindowRegion(m_wnd, rgn.GetMGLRegion().rgnPointer());
960
961 // Use MGL_wmInvalidateWindowRect instead:
962 for (wxRegionIterator it(rgn); it; it++)
963 {
964 rect_t rc;
965 rc.left = it.GetX();
966 rc.top = it.GetY();
967 rc.right = rc.left + it.GetW();
968 rc.bottom = rc.top + it.GetH();
969 MGL_wmInvalidateWindowRect(m_wnd, &rc);
970 }
971 }
972 }
973
974 // set the size of the window: if the dimensions are positive, just use them,
975 // but if any of them is equal to -1, it means that we must find the value for
976 // it ourselves (unless sizeFlags contains wxSIZE_ALLOW_MINUS_ONE flag, in
977 // which case -1 is a valid value for x and y)
978 //
979 // If sizeFlags contains wxSIZE_AUTO_WIDTH/HEIGHT flags (default), we calculate
980 // the width/height to best suit our contents, otherwise we reuse the current
981 // width/height
982 void wxWindowMGL::DoSetSize(int x, int y, int width, int height, int sizeFlags)
983 {
984 // get the current size and position...
985 int currentX, currentY;
986 GetPosition(&currentX, &currentY);
987 int currentW,currentH;
988 GetSize(&currentW, &currentH);
989
990 // ... and don't do anything (avoiding flicker) if it's already ok
991 if ( x == currentX && y == currentY &&
992 width == currentW && height == currentH )
993 {
994 return;
995 }
996
997 if ( x == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
998 x = currentX;
999 if ( y == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
1000 y = currentY;
1001
1002 AdjustForParentClientOrigin(x, y, sizeFlags);
1003
1004 wxSize size(-1, -1);
1005 if ( width == -1 )
1006 {
1007 if ( sizeFlags & wxSIZE_AUTO_WIDTH )
1008 {
1009 size = DoGetBestSize();
1010 width = size.x;
1011 }
1012 else
1013 {
1014 // just take the current one
1015 width = currentW;
1016 }
1017 }
1018
1019 if ( height == -1 )
1020 {
1021 if ( sizeFlags & wxSIZE_AUTO_HEIGHT )
1022 {
1023 if ( size.x == -1 )
1024 {
1025 size = DoGetBestSize();
1026 }
1027 //else: already called DoGetBestSize() above
1028
1029 height = size.y;
1030 }
1031 else
1032 {
1033 // just take the current one
1034 height = currentH;
1035 }
1036 }
1037
1038 int maxWidth = GetMaxWidth(),
1039 minWidth = GetMinWidth(),
1040 maxHeight = GetMaxHeight(),
1041 minHeight = GetMinHeight();
1042
1043 if ( minWidth != -1 && width < minWidth ) width = minWidth;
1044 if ( maxWidth != -1 && width > maxWidth ) width = maxWidth;
1045 if ( minHeight != -1 && height < minHeight ) height = minHeight;
1046 if ( maxHeight != -1 && height > maxHeight ) height = maxHeight;
1047
1048 if ( m_wnd->x != x || m_wnd->y != y ||
1049 (int)m_wnd->width != width || (int)m_wnd->height != height )
1050 {
1051 DoMoveWindow(x, y, width, height);
1052
1053 wxSize newSize(width, height);
1054 wxSizeEvent event(newSize, GetId());
1055 event.SetEventObject(this);
1056 HandleWindowEvent(event);
1057 }
1058 }
1059
1060 void wxWindowMGL::DoSetClientSize(int width, int height)
1061 {
1062 SetSize(width, height);
1063 }
1064
1065 // ---------------------------------------------------------------------------
1066 // text metrics
1067 // ---------------------------------------------------------------------------
1068
1069 int wxWindowMGL::GetCharHeight() const
1070 {
1071 wxScreenDC dc;
1072 dc.SetFont(m_font);
1073 return dc.GetCharHeight();
1074 }
1075
1076 int wxWindowMGL::GetCharWidth() const
1077 {
1078 wxScreenDC dc;
1079 dc.SetFont(m_font);
1080 return dc.GetCharWidth();
1081 }
1082
1083 void wxWindowMGL::GetTextExtent(const wxString& string,
1084 int *x, int *y,
1085 int *descent, int *externalLeading,
1086 const wxFont *theFont) const
1087 {
1088 wxScreenDC dc;
1089 if (!theFont)
1090 theFont = &m_font;
1091 dc.GetTextExtent(string, x, y, descent, externalLeading, (wxFont*)theFont);
1092 }
1093
1094
1095 // ---------------------------------------------------------------------------
1096 // painting
1097 // ---------------------------------------------------------------------------
1098
1099 void wxWindowMGL::Refresh(bool eraseBack, const wxRect *rect)
1100 {
1101 if ( m_eraseBackground == -1 )
1102 m_eraseBackground = eraseBack;
1103 else
1104 m_eraseBackground |= eraseBack;
1105
1106 if ( rect )
1107 {
1108 rect_t r;
1109 r.left = rect->GetLeft(), r.right = rect->GetRight();
1110 r.top = rect->GetTop(), r.bottom = rect->GetBottom();
1111 MGL_wmInvalidateWindowRect(GetHandle(), &r);
1112 }
1113 else
1114 MGL_wmInvalidateWindow(GetHandle());
1115 }
1116
1117 void wxWindowMGL::Update()
1118 {
1119 if ( !IsFrozen() )
1120 MGL_wmUpdateDC(g_winMng);
1121 }
1122
1123 void wxWindowMGL::DoFreeze()
1124 {
1125 m_refreshAfterThaw = false;
1126 }
1127
1128 void wxWindowMGL::DoThaw()
1129 {
1130 if ( m_refreshAfterThaw )
1131 Refresh();
1132 }
1133
1134 void wxWindowMGL::HandlePaint(MGLDevCtx *dc)
1135 {
1136 if ( IsFrozen() )
1137 {
1138 // Don't paint anything if the window is frozen.
1139 m_refreshAfterThaw = true;
1140 return;
1141 }
1142
1143 #ifdef __WXDEBUG__
1144 // FIXME_MGL -- debugging stuff, to be removed!
1145 static int debugPaintEvents = -1;
1146 if ( debugPaintEvents == -1 )
1147 debugPaintEvents = wxGetEnv(wxT("WXMGL_DEBUG_PAINT_EVENTS"), NULL);
1148 if ( debugPaintEvents )
1149 {
1150 dc->setColorRGB(255,0,255);
1151 dc->fillRect(-1000,-1000,2000,2000);
1152 wxMilliSleep(50);
1153 }
1154 #endif
1155
1156 MGLRegion clip;
1157 dc->getClipRegion(clip);
1158 m_updateRegion = wxRegion(clip);
1159 m_paintMGLDC = dc;
1160
1161 #if wxUSE_CARET
1162 // must hide caret temporarily, otherwise we'd get rendering artifacts
1163 wxCaret *caret = GetCaret();
1164 if ( caret )
1165 caret->Hide();
1166 #endif // wxUSE_CARET
1167
1168 if ( m_eraseBackground != 0 )
1169 {
1170 wxWindowDC dc((wxWindow*)this);
1171 wxEraseEvent eventEr(m_windowId, &dc);
1172 eventEr.SetEventObject(this);
1173 HandleWindowEvent(eventEr);
1174 }
1175 m_eraseBackground = -1;
1176
1177 wxNcPaintEvent eventNc(GetId());
1178 eventNc.SetEventObject(this);
1179 HandleWindowEvent(eventNc);
1180
1181 wxPaintEvent eventPt(GetId());
1182 eventPt.SetEventObject(this);
1183 HandleWindowEvent(eventPt);
1184
1185 #if wxUSE_CARET
1186 if ( caret )
1187 caret->Show();
1188 #endif // wxUSE_CARET
1189
1190 m_paintMGLDC = NULL;
1191 m_updateRegion.Clear();
1192 }
1193
1194
1195 // Find the wxWindow at the current mouse position, returning the mouse
1196 // position.
1197 wxWindow* wxFindWindowAtPointer(wxPoint& pt)
1198 {
1199 return wxFindWindowAtPoint(pt = wxGetMousePosition());
1200 }
1201
1202 wxWindow* wxFindWindowAtPoint(const wxPoint& pt)
1203 {
1204 window_t *wnd = MGL_wmGetWindowAtPosition(g_winMng, pt.x, pt.y);
1205 return (wxWindow*)wnd->userData;
1206 }
1207
1208
1209 // ---------------------------------------------------------------------------
1210 // idle events processing
1211 // ---------------------------------------------------------------------------
1212
1213 void wxWindowMGL::OnInternalIdle()
1214 {
1215 if (wxUpdateUIEvent::CanUpdate(this) && IsShown())
1216 UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
1217 }
wxWidgets (Impactor)