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Corrected scrolling when using cursor keys.
[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 #ifndef WX_PRECOMP
27 #include "wx/window.h"
28 #include "wx/msgdlg.h"
29 #include "wx/accel.h"
30 #include "wx/dc.h"
31 #include "wx/dcclient.h"
32 #include "wx/utils.h"
33 #include "wx/app.h"
34 #include "wx/panel.h"
35 #endif
36
37 #if wxUSE_DRAG_AND_DROP
38 #include "wx/dnd.h"
39 #endif
40
41 #include "wx/log.h"
42 #include "wx/sysopt.h"
43 #include "wx/mgl/private.h"
44 #include "wx/intl.h"
45 #include "wx/dcscreen.h"
46 #include "wx/caret.h"
47
48 #include <mgraph.hpp>
49
50 #if wxUSE_TOOLTIPS
51 #include "wx/tooltip.h"
52 #endif
53
54 // ---------------------------------------------------------------------------
55 // global variables
56 // ---------------------------------------------------------------------------
57
58 // MGL window manager and associated DC.
59 winmng_t *g_winMng = NULL;
60 MGLDevCtx *g_displayDC = NULL;
61
62 // the window that has keyboard focus:
63 static wxWindowMGL *gs_focusedWindow = NULL;
64 // the window that is about to be focused after currently focused
65 // one looses focus:
66 static wxWindow *gs_toBeFocusedWindow = NULL;
67 // the window that is currently under mouse cursor:
68 static wxWindowMGL *gs_windowUnderMouse = NULL;
69 // the window that has mouse capture
70 static wxWindowMGL *gs_mouseCapture = NULL;
71 // the frame that is currently active (i.e. its child has focus). It is
72 // used to generate wxActivateEvents
73 static wxWindowMGL *gs_activeFrame = NULL;
74
75 // ---------------------------------------------------------------------------
76 // constants
77 // ---------------------------------------------------------------------------
78
79 // Custom identifiers used to distinguish between various event handlers
80 // and capture handlers passed to MGL_wm
81 enum
82 {
83 wxMGL_CAPTURE_MOUSE = 1,
84 wxMGL_CAPTURE_KEYB = 2
85 };
86
87
88 // ---------------------------------------------------------------------------
89 // private functions
90 // ---------------------------------------------------------------------------
91
92 // Returns toplevel grandparent of given window:
93 static wxWindowMGL* wxGetTopLevelParent(wxWindowMGL *win)
94 {
95 wxWindowMGL *p = win;
96 while (p && !p->IsTopLevel())
97 p = p->GetParent();
98 return p;
99 }
100
101 // An easy way to capture screenshots:
102 static void wxCaptureScreenshot(bool activeWindowOnly)
103 {
104 #ifdef __DOS__
105 #define SCREENSHOT_FILENAME _T("sshot%03i.png")
106 #else
107 #define SCREENSHOT_FILENAME _T("screenshot-%03i.png")
108 #endif
109 static int screenshot_num = 0;
110 wxString screenshot;
111
112 do
113 {
114 screenshot.Printf(SCREENSHOT_FILENAME, screenshot_num++);
115 } while ( wxFileExists(screenshot) && screenshot_num < 1000 );
116
117 wxRect r(0, 0, g_displayDC->sizex(), g_displayDC->sizey());
118
119 if ( activeWindowOnly && gs_activeFrame )
120 {
121 r.Intersect(gs_activeFrame->GetRect());
122 }
123
124 g_displayDC->savePNGFromDC(screenshot.mb_str(),
125 r.x, r. y, r.x+r.width, r.y+r.height);
126
127 wxMessageBox(wxString::Format(_T("Screenshot captured: %s"),
128 screenshot.c_str()));
129 }
130
131 // ---------------------------------------------------------------------------
132 // MGL_WM hooks:
133 // ---------------------------------------------------------------------------
134
135 static void MGLAPI wxWindowPainter(window_t *wnd, MGLDC *dc)
136 {
137 wxWindowMGL *w = (wxWindow*) wnd->userData;
138
139 if ( w && !(w->GetWindowStyle() & wxTRANSPARENT_WINDOW) )
140 {
141 MGLDevCtx ctx(dc);
142 w->HandlePaint(&ctx);
143 }
144 }
145
146 static ibool MGLAPI wxWindowMouseHandler(window_t *wnd, event_t *e)
147 {
148 wxWindowMGL *win = (wxWindowMGL*)MGL_wmGetWindowUserData(wnd);
149 wxPoint orig(win->GetClientAreaOrigin());
150 wxPoint where;
151
152 MGL_wmCoordGlobalToLocal(win->GetHandle(),
153 e->where_x, e->where_y, &where.x, &where.y);
154
155 for (wxWindowMGL *w = win; w; w = w->GetParent())
156 {
157 if ( !w->IsEnabled() )
158 return FALSE;
159 if ( w->IsTopLevel() )
160 break;
161 }
162
163 wxEventType type = wxEVT_NULL;
164 wxMouseEvent event;
165 event.SetEventObject(win);
166 event.SetTimestamp(e->when);
167 event.m_x = where.x - orig.x;
168 event.m_y = where.y - orig.y;
169 event.m_shiftDown = ( e->modifiers & EVT_SHIFTKEY ) != 0;
170 event.m_controlDown = ( e->modifiers & EVT_CTRLSTATE ) != 0;
171 event.m_altDown = ( e->modifiers & EVT_LEFTALT ) != 0;
172 event.m_metaDown = ( e->modifiers & EVT_RIGHTALT ) != 0;
173 event.m_leftDown = ( e->modifiers & EVT_LEFTBUT ) != 0;
174 event.m_middleDown = ( e->modifiers & EVT_MIDDLEBUT ) != 0;
175 event.m_rightDown = ( e->modifiers & EVT_RIGHTBUT ) != 0;
176
177 switch (e->what)
178 {
179 case EVT_MOUSEDOWN:
180 // Change focus if the user clicks outside focused window:
181 if ( win->AcceptsFocus() && wxWindow::FindFocus() != win )
182 win->SetFocus();
183
184 if ( e->message & EVT_DBLCLICK )
185 {
186 if ( e->message & EVT_LEFTBMASK )
187 type = wxEVT_LEFT_DCLICK;
188 else if ( e->message & EVT_MIDDLEBMASK )
189 type = wxEVT_MIDDLE_DCLICK;
190 else if ( e->message & EVT_RIGHTBMASK )
191 type = wxEVT_RIGHT_DCLICK;
192 }
193 else
194 {
195 if ( e->message & EVT_LEFTBMASK )
196 type = wxEVT_LEFT_DOWN;
197 else if ( e->message & EVT_MIDDLEBMASK )
198 type = wxEVT_MIDDLE_DOWN;
199 else if ( e->message & EVT_RIGHTBMASK )
200 type = wxEVT_RIGHT_DOWN;
201 }
202
203 break;
204
205 case EVT_MOUSEUP:
206 if ( e->message & EVT_LEFTBMASK )
207 type = wxEVT_LEFT_UP;
208 else if ( e->message & EVT_MIDDLEBMASK )
209 type = wxEVT_MIDDLE_UP;
210 else if ( e->message & EVT_RIGHTBMASK )
211 type = wxEVT_RIGHT_UP;
212 break;
213
214 case EVT_MOUSEMOVE:
215 if ( !gs_mouseCapture )
216 {
217 if ( win != gs_windowUnderMouse )
218 {
219 if ( gs_windowUnderMouse )
220 {
221 wxMouseEvent event2(event);
222 MGL_wmCoordGlobalToLocal(gs_windowUnderMouse->GetHandle(),
223 e->where_x, e->where_y,
224 &event2.m_x, &event2.m_y);
225
226 wxPoint orig(gs_windowUnderMouse->GetClientAreaOrigin());
227 event2.m_x -= orig.x;
228 event2.m_y -= orig.y;
229
230 event2.SetEventObject(gs_windowUnderMouse);
231 event2.SetEventType(wxEVT_LEAVE_WINDOW);
232 gs_windowUnderMouse->GetEventHandler()->ProcessEvent(event2);
233 }
234
235 wxMouseEvent event3(event);
236 event3.SetEventType(wxEVT_ENTER_WINDOW);
237 win->GetEventHandler()->ProcessEvent(event3);
238
239 gs_windowUnderMouse = win;
240 }
241 }
242 else // gs_mouseCapture
243 {
244 bool inside = (where.x >= 0 &&
245 where.y >= 0 &&
246 where.x < win->GetSize().x &&
247 where.y < win->GetSize().y);
248 if ( (inside && gs_windowUnderMouse != win) ||
249 (!inside && gs_windowUnderMouse == win) )
250 {
251 wxMouseEvent evt(inside ?
252 wxEVT_ENTER_WINDOW : wxEVT_LEAVE_WINDOW);
253 evt.SetEventObject(win);
254 win->GetEventHandler()->ProcessEvent(evt);
255 gs_windowUnderMouse = inside ? win : NULL;
256 }
257 }
258
259 type = wxEVT_MOTION;
260 break;
261
262 default:
263 break;
264 }
265
266 if ( type == wxEVT_NULL )
267 {
268 return FALSE;
269 }
270 else
271 {
272 event.SetEventType(type);
273 return win->GetEventHandler()->ProcessEvent(event);
274 }
275 }
276
277 static long wxScanToKeyCode(event_t *event, bool translate)
278 {
279 // VS: make it __WXDEBUG__-only, since we have lots of wxLogTrace calls
280 // here and the arguments would be stored in non-debug executable even
281 // though wxLogTrace would be no-op...
282 #ifdef __WXDEBUG__
283 #define KEY(mgl_key,wx_key) \
284 case mgl_key: \
285 wxLogTrace(_T("keyevents"), \
286 _T("key " #mgl_key ", mapped to " #wx_key)); \
287 key = wx_key; \
288 break;
289 #else
290 #define KEY(mgl_key,wx_key) \
291 case mgl_key: key = wx_key; break;
292 #endif
293
294 long key = 0;
295
296 if ( translate )
297 {
298 switch ( EVT_scanCode(event->message) )
299 {
300 KEY (KB_padMinus, WXK_NUMPAD_SUBTRACT)
301 KEY (KB_padPlus, WXK_NUMPAD_ADD)
302 KEY (KB_padTimes, WXK_NUMPAD_MULTIPLY)
303 KEY (KB_padDivide, WXK_NUMPAD_DIVIDE)
304 KEY (KB_padCenter, WXK_NUMPAD_SEPARATOR) // ?
305 KEY (KB_padLeft, WXK_NUMPAD_LEFT)
306 KEY (KB_padRight, WXK_NUMPAD_RIGHT)
307 KEY (KB_padUp, WXK_NUMPAD_UP)
308 KEY (KB_padDown, WXK_NUMPAD_DOWN)
309 KEY (KB_padInsert, WXK_NUMPAD_INSERT)
310 KEY (KB_padDelete, WXK_NUMPAD_DELETE)
311 KEY (KB_padHome, WXK_NUMPAD_HOME)
312 KEY (KB_padEnd, WXK_NUMPAD_END)
313 KEY (KB_padPageUp, WXK_NUMPAD_PAGEUP)
314 //KEY (KB_padPageUp, WXK_NUMPAD_PRIOR)
315 KEY (KB_padPageDown, WXK_NUMPAD_PAGEDOWN)
316 //KEY (KB_padPageDown, WXK_NUMPAD_NEXT)
317 KEY (KB_1, '1')
318 KEY (KB_2, '2')
319 KEY (KB_3, '3')
320 KEY (KB_4, '4')
321 KEY (KB_5, '5')
322 KEY (KB_6, '6')
323 KEY (KB_7, '7')
324 KEY (KB_8, '8')
325 KEY (KB_9, '9')
326 KEY (KB_0, '0')
327 KEY (KB_minus, WXK_SUBTRACT)
328 KEY (KB_equals, WXK_ADD)
329 KEY (KB_backSlash, '\\')
330 KEY (KB_Q, 'Q')
331 KEY (KB_W, 'W')
332 KEY (KB_E, 'E')
333 KEY (KB_R, 'R')
334 KEY (KB_T, 'T')
335 KEY (KB_Y, 'Y')
336 KEY (KB_U, 'U')
337 KEY (KB_I, 'I')
338 KEY (KB_O, 'O')
339 KEY (KB_P, 'P')
340 KEY (KB_leftSquareBrace,'[')
341 KEY (KB_rightSquareBrace,']')
342 KEY (KB_A, 'A')
343 KEY (KB_S, 'S')
344 KEY (KB_D, 'D')
345 KEY (KB_F, 'F')
346 KEY (KB_G, 'G')
347 KEY (KB_H, 'H')
348 KEY (KB_J, 'J')
349 KEY (KB_K, 'K')
350 KEY (KB_L, 'L')
351 KEY (KB_semicolon, ';')
352 KEY (KB_apostrophe, '\'')
353 KEY (KB_Z, 'Z')
354 KEY (KB_X, 'X')
355 KEY (KB_C, 'C')
356 KEY (KB_V, 'V')
357 KEY (KB_B, 'B')
358 KEY (KB_N, 'N')
359 KEY (KB_M, 'M')
360 KEY (KB_comma, ',')
361 KEY (KB_period, '.')
362 KEY (KB_divide, WXK_DIVIDE)
363 KEY (KB_space, WXK_SPACE)
364 KEY (KB_tilde, '~')
365
366 default: break;
367 }
368 }
369
370 if ( key == 0 )
371 {
372 switch ( EVT_scanCode(event->message) )
373 {
374 KEY (KB_padEnter, WXK_NUMPAD_ENTER)
375 KEY (KB_F1, WXK_F1)
376 KEY (KB_F2, WXK_F2)
377 KEY (KB_F3, WXK_F3)
378 KEY (KB_F4, WXK_F4)
379 KEY (KB_F5, WXK_F5)
380 KEY (KB_F6, WXK_F6)
381 KEY (KB_F7, WXK_F7)
382 KEY (KB_F8, WXK_F8)
383 KEY (KB_F9, WXK_F9)
384 KEY (KB_F10, WXK_F10)
385 KEY (KB_F11, WXK_F11)
386 KEY (KB_F12, WXK_F12)
387 KEY (KB_left, WXK_LEFT)
388 KEY (KB_right, WXK_RIGHT)
389 KEY (KB_up, WXK_UP)
390 KEY (KB_down, WXK_DOWN)
391 KEY (KB_insert, WXK_INSERT)
392 KEY (KB_delete, WXK_DELETE)
393 KEY (KB_home, WXK_HOME)
394 KEY (KB_end, WXK_END)
395 KEY (KB_pageUp, WXK_PAGEUP)
396 KEY (KB_pageDown, WXK_PAGEDOWN)
397 KEY (KB_capsLock, WXK_CAPITAL)
398 KEY (KB_numLock, WXK_NUMLOCK)
399 KEY (KB_scrollLock, WXK_SCROLL)
400 KEY (KB_leftShift, WXK_SHIFT)
401 KEY (KB_rightShift, WXK_SHIFT)
402 KEY (KB_leftCtrl, WXK_CONTROL)
403 KEY (KB_rightCtrl, WXK_CONTROL)
404 KEY (KB_leftAlt, WXK_ALT)
405 KEY (KB_rightAlt, WXK_ALT)
406 KEY (KB_leftWindows, WXK_START)
407 KEY (KB_rightWindows, WXK_START)
408 KEY (KB_menu, WXK_MENU)
409 KEY (KB_sysReq, WXK_SNAPSHOT)
410 KEY (KB_esc, WXK_ESCAPE)
411 KEY (KB_backspace, WXK_BACK)
412 KEY (KB_tab, WXK_TAB)
413 KEY (KB_enter, WXK_RETURN)
414
415 default:
416 key = EVT_asciiCode(event->message);
417 break;
418 }
419 }
420
421 #undef KEY
422
423 return key;
424 }
425
426 static bool wxHandleSpecialKeys(wxKeyEvent& event)
427 {
428 // Add an easy way to capture screenshots:
429 if ( event.m_keyCode == WXK_SNAPSHOT
430 #ifdef __WXDEBUG__ // FIXME_MGL - remove when KB_sysReq works in MGL!
431 || (event.m_keyCode == WXK_F1 &&
432 event.m_shiftDown && event.m_controlDown)
433 #endif
434 )
435 {
436 wxCaptureScreenshot(event.m_altDown/*only active wnd?*/);
437 return true;
438 }
439
440 return false;
441 }
442
443 static ibool MGLAPI wxWindowKeybHandler(window_t *wnd, event_t *e)
444 {
445 wxWindowMGL *win = (wxWindowMGL*)MGL_wmGetWindowUserData(wnd);
446
447 if ( !win->IsEnabled() ) return FALSE;
448
449 wxPoint where;
450 MGL_wmCoordGlobalToLocal(win->GetHandle(),
451 e->where_x, e->where_y, &where.x, &where.y);
452
453 wxKeyEvent event;
454 event.SetEventObject(win);
455 event.SetTimestamp(e->when);
456 event.m_keyCode = wxScanToKeyCode(e, true);
457 event.m_scanCode = 0; // not used by wx at all
458 event.m_x = where.x;
459 event.m_y = where.y;
460 event.m_shiftDown = ( e->modifiers & EVT_SHIFTKEY ) != 0;
461 event.m_controlDown = ( e->modifiers & EVT_CTRLSTATE ) != 0;
462 event.m_altDown = ( e->modifiers & EVT_LEFTALT ) != 0;
463 event.m_metaDown = ( e->modifiers & EVT_RIGHTALT ) != 0;
464
465 if ( e->what == EVT_KEYUP )
466 {
467 event.SetEventType(wxEVT_KEY_UP);
468 return win->GetEventHandler()->ProcessEvent(event);
469 }
470 else
471 {
472 bool ret;
473 wxKeyEvent event2;
474
475 event.SetEventType(wxEVT_KEY_DOWN);
476 event2 = event;
477
478 ret = win->GetEventHandler()->ProcessEvent(event);
479
480 // wxMSW doesn't send char events with Alt pressed
481 // Only send wxEVT_CHAR event if not processed yet. Thus, ALT-x
482 // will only be sent if it is not in an accelerator table:
483 event2.m_keyCode = wxScanToKeyCode(e, false);
484 if ( !ret && event2.m_keyCode != 0 )
485 {
486 event2.SetEventType(wxEVT_CHAR);
487 ret = win->GetEventHandler()->ProcessEvent(event2);
488 }
489
490 // Synthetize navigation key event, but do it only if the TAB key
491 // wasn't handled yet:
492 if ( !ret && event.m_keyCode == WXK_TAB &&
493 win->GetParent() && win->GetParent()->HasFlag(wxTAB_TRAVERSAL) )
494 {
495 wxNavigationKeyEvent navEvent;
496 navEvent.SetEventObject(win->GetParent());
497 // Shift-TAB goes in reverse direction:
498 navEvent.SetDirection(!event.m_shiftDown);
499 // Ctrl-TAB changes the (parent) window, i.e. switch notebook page:
500 navEvent.SetWindowChange(event.m_controlDown);
501 navEvent.SetCurrentFocus(wxStaticCast(win, wxWindow));
502 ret = win->GetParent()->GetEventHandler()->ProcessEvent(navEvent);
503 }
504
505 // Finally, process special meaning keys that are usually
506 // a responsibility of OS or window manager:
507 if ( !ret )
508 ret = wxHandleSpecialKeys(event);
509
510 return ret;
511 }
512 }
513
514 // ---------------------------------------------------------------------------
515 // event tables
516 // ---------------------------------------------------------------------------
517
518 // in wxUniv this class is abstract because it doesn't have DoPopupMenu()
519 IMPLEMENT_ABSTRACT_CLASS(wxWindowMGL, wxWindowBase)
520
521 BEGIN_EVENT_TABLE(wxWindowMGL, wxWindowBase)
522 END_EVENT_TABLE()
523
524 // ===========================================================================
525 // implementation
526 // ===========================================================================
527
528 // ----------------------------------------------------------------------------
529 // constructors and such
530 // ----------------------------------------------------------------------------
531
532 extern wxVideoMode wxGetDefaultDisplayMode();
533
534 void wxWindowMGL::Init()
535 {
536 // First of all, make sure window manager is up and running. If it is
537 // not the case, initialize it in default display mode
538 if ( !g_winMng )
539 {
540 if ( !wxTheApp->SetDisplayMode(wxGetDefaultDisplayMode()) )
541 wxLogFatalError(_("Cannot initialize display."));
542 }
543
544 // mgl specific:
545 m_wnd = NULL;
546 m_isShown = true;
547 m_frozen = false;
548 m_paintMGLDC = NULL;
549 m_eraseBackground = -1;
550 }
551
552 // Destructor
553 wxWindowMGL::~wxWindowMGL()
554 {
555 SendDestroyEvent();
556
557 m_isBeingDeleted = true;
558
559 if ( gs_mouseCapture == this )
560 ReleaseMouse();
561
562 if (gs_activeFrame == this)
563 {
564 gs_activeFrame = NULL;
565 // activate next frame in Z-order:
566 if ( m_wnd->prev )
567 {
568 wxWindowMGL *win = (wxWindowMGL*)m_wnd->prev->userData;
569 win->SetFocus();
570 }
571 else if ( m_wnd->next )
572 {
573 wxWindowMGL *win = (wxWindowMGL*)m_wnd->next->userData;
574 win->SetFocus();
575 }
576 }
577
578 if ( gs_focusedWindow == this )
579 KillFocus();
580
581 if ( gs_windowUnderMouse == this )
582 gs_windowUnderMouse = NULL;
583
584 DestroyChildren();
585
586 if ( m_wnd )
587 MGL_wmDestroyWindow(m_wnd);
588 }
589
590 // real construction (Init() must have been called before!)
591 bool wxWindowMGL::Create(wxWindow *parent,
592 wxWindowID id,
593 const wxPoint& pos,
594 const wxSize& size,
595 long style,
596 const wxString& name)
597 {
598 if ( !CreateBase(parent, id, pos, size, style, wxDefaultValidator, name) )
599 return false;
600
601 if ( parent )
602 parent->AddChild(this);
603
604 int x, y, w, h;
605 x = pos.x, y = pos.y;
606 if ( x == -1 )
607 x = 0; // FIXME_MGL, something better, see GTK+
608 if ( y == -1 )
609 y = 0; // FIXME_MGL, something better, see GTK+
610 AdjustForParentClientOrigin(x, y, 0);
611 w = WidthDefault(size.x);
612 h = HeightDefault(size.y);
613
614 long mgl_style = 0;
615 window_t *wnd_parent = parent ? parent->GetHandle() : NULL;
616
617 if ( style & wxFULL_REPAINT_ON_RESIZE )
618 {
619 mgl_style |= MGL_WM_FULL_REPAINT_ON_RESIZE;
620 }
621 if ( style & wxSTAY_ON_TOP )
622 {
623 mgl_style |= MGL_WM_ALWAYS_ON_TOP;
624 }
625 if ( style & wxPOPUP_WINDOW )
626 {
627 mgl_style |= MGL_WM_ALWAYS_ON_TOP;
628 // it is created hidden as other top level windows
629 m_isShown = false;
630 wnd_parent = NULL;
631 }
632
633 window_t *wnd = MGL_wmCreateWindow(g_winMng, wnd_parent, x, y, w, h);
634
635 MGL_wmSetWindowFlags(wnd, mgl_style);
636 MGL_wmShowWindow(wnd, m_isShown);
637
638 SetMGLwindow_t(wnd);
639
640 return true;
641 }
642
643 void wxWindowMGL::SetMGLwindow_t(struct window_t *wnd)
644 {
645 if ( m_wnd )
646 MGL_wmDestroyWindow(m_wnd);
647
648 m_wnd = wnd;
649 if ( !m_wnd ) return;
650
651 m_isShown = (bool)m_wnd->visible;
652
653 MGL_wmSetWindowUserData(m_wnd, (void*) this);
654 MGL_wmSetWindowPainter(m_wnd, wxWindowPainter);
655 MGL_wmPushWindowEventHandler(m_wnd, wxWindowMouseHandler, EVT_MOUSEEVT, 0);
656 MGL_wmPushWindowEventHandler(m_wnd, wxWindowKeybHandler, EVT_KEYEVT, 0);
657
658 if ( m_cursor.Ok() )
659 MGL_wmSetWindowCursor(m_wnd, *m_cursor.GetMGLCursor());
660 else
661 MGL_wmSetWindowCursor(m_wnd, *wxSTANDARD_CURSOR->GetMGLCursor());
662 }
663
664 // ---------------------------------------------------------------------------
665 // basic operations
666 // ---------------------------------------------------------------------------
667
668 void wxWindowMGL::SetFocus()
669 {
670 if ( gs_focusedWindow == this ) return;
671
672 wxWindowMGL *oldFocusedWindow = gs_focusedWindow;
673
674 if ( gs_focusedWindow )
675 {
676 gs_toBeFocusedWindow = (wxWindow*)this;
677 gs_focusedWindow->KillFocus();
678 gs_toBeFocusedWindow = NULL;
679 }
680
681 gs_focusedWindow = this;
682
683 MGL_wmCaptureEvents(GetHandle(), EVT_KEYEVT, wxMGL_CAPTURE_KEYB);
684
685 wxWindowMGL *active = wxGetTopLevelParent(this);
686 if ( !(m_windowStyle & wxPOPUP_WINDOW) && active != gs_activeFrame )
687 {
688 if ( gs_activeFrame )
689 {
690 wxActivateEvent event(wxEVT_ACTIVATE, false, gs_activeFrame->GetId());
691 event.SetEventObject(gs_activeFrame);
692 gs_activeFrame->GetEventHandler()->ProcessEvent(event);
693 }
694
695 gs_activeFrame = active;
696 wxActivateEvent event(wxEVT_ACTIVATE, true, gs_activeFrame->GetId());
697 event.SetEventObject(gs_activeFrame);
698 gs_activeFrame->GetEventHandler()->ProcessEvent(event);
699 }
700
701 wxFocusEvent event(wxEVT_SET_FOCUS, GetId());
702 event.SetEventObject(this);
703 event.SetWindow((wxWindow*)oldFocusedWindow);
704 GetEventHandler()->ProcessEvent(event);
705
706 #if wxUSE_CARET
707 // caret needs to be informed about focus change
708 wxCaret *caret = GetCaret();
709 if ( caret )
710 caret->OnSetFocus();
711 #endif // wxUSE_CARET
712 }
713
714 void wxWindowMGL::KillFocus()
715 {
716 if ( gs_focusedWindow != this ) return;
717 gs_focusedWindow = NULL;
718
719 if ( m_isBeingDeleted ) return;
720
721 MGL_wmUncaptureEvents(GetHandle(), wxMGL_CAPTURE_KEYB);
722
723 #if wxUSE_CARET
724 // caret needs to be informed about focus change
725 wxCaret *caret = GetCaret();
726 if ( caret )
727 caret->OnKillFocus();
728 #endif // wxUSE_CARET
729
730 wxFocusEvent event(wxEVT_KILL_FOCUS, GetId());
731 event.SetEventObject(this);
732 event.SetWindow(gs_toBeFocusedWindow);
733 GetEventHandler()->ProcessEvent(event);
734 }
735
736 // ----------------------------------------------------------------------------
737 // this wxWindowBase function is implemented here (in platform-specific file)
738 // because it is static and so couldn't be made virtual
739 // ----------------------------------------------------------------------------
740 wxWindow *wxWindowBase::DoFindFocus()
741 {
742 return (wxWindow*)gs_focusedWindow;
743 }
744
745 bool wxWindowMGL::Show(bool show)
746 {
747 if ( !wxWindowBase::Show(show) )
748 return false;
749
750 MGL_wmShowWindow(m_wnd, show);
751
752 if (!show && gs_activeFrame == this)
753 {
754 // activate next frame in Z-order:
755 if ( m_wnd->prev )
756 {
757 wxWindowMGL *win = (wxWindowMGL*)m_wnd->prev->userData;
758 win->SetFocus();
759 }
760 else if ( m_wnd->next )
761 {
762 wxWindowMGL *win = (wxWindowMGL*)m_wnd->next->userData;
763 win->SetFocus();
764 }
765 else
766 {
767 gs_activeFrame = NULL;
768 }
769 }
770
771 return true;
772 }
773
774 // Raise the window to the top of the Z order
775 void wxWindowMGL::Raise()
776 {
777 MGL_wmRaiseWindow(m_wnd);
778 }
779
780 // Lower the window to the bottom of the Z order
781 void wxWindowMGL::Lower()
782 {
783 MGL_wmLowerWindow(m_wnd);
784 }
785
786 void wxWindowMGL::DoCaptureMouse()
787 {
788 if ( gs_mouseCapture )
789 MGL_wmUncaptureEvents(gs_mouseCapture->m_wnd, wxMGL_CAPTURE_MOUSE);
790
791 gs_mouseCapture = this;
792 MGL_wmCaptureEvents(m_wnd, EVT_MOUSEEVT, wxMGL_CAPTURE_MOUSE);
793 }
794
795 void wxWindowMGL::DoReleaseMouse()
796 {
797 wxASSERT_MSG( gs_mouseCapture == this, wxT("attempt to release mouse, but this window hasn't captured it") );
798
799 MGL_wmUncaptureEvents(m_wnd, wxMGL_CAPTURE_MOUSE);
800 gs_mouseCapture = NULL;
801 }
802
803 /* static */ wxWindow *wxWindowBase::GetCapture()
804 {
805 return (wxWindow*)gs_mouseCapture;
806 }
807
808 bool wxWindowMGL::SetCursor(const wxCursor& cursor)
809 {
810 if ( !wxWindowBase::SetCursor(cursor) )
811 {
812 // no change
813 return false;
814 }
815
816 if ( m_cursor.Ok() )
817 MGL_wmSetWindowCursor(m_wnd, *m_cursor.GetMGLCursor());
818 else
819 MGL_wmSetWindowCursor(m_wnd, *wxSTANDARD_CURSOR->GetMGLCursor());
820
821 return true;
822 }
823
824 void wxWindowMGL::WarpPointer(int x, int y)
825 {
826 int w, h;
827 wxDisplaySize(&w, &h);
828
829 ClientToScreen(&x, &y);
830 if ( x < 0 )
831 x = 0;
832 if ( y < 0 )
833 y = 0;
834 if ( x >= w )
835 x = w-1;
836 if ( y >= h )
837 y = h-1;
838
839 EVT_setMousePos(x, y);
840 }
841
842 // Set this window to be the child of 'parent'.
843 bool wxWindowMGL::Reparent(wxWindowBase *parent)
844 {
845 if ( !wxWindowBase::Reparent(parent) )
846 return false;
847
848 MGL_wmReparentWindow(m_wnd, parent->GetHandle());
849
850 return true;
851 }
852
853
854 // ---------------------------------------------------------------------------
855 // drag and drop
856 // ---------------------------------------------------------------------------
857
858 #if wxUSE_DRAG_AND_DROP
859
860 void wxWindowMGL::SetDropTarget(wxDropTarget *pDropTarget)
861 {
862 if ( m_dropTarget != 0 ) {
863 m_dropTarget->Revoke(m_hWnd);
864 delete m_dropTarget;
865 }
866
867 m_dropTarget = pDropTarget;
868 if ( m_dropTarget != 0 )
869 m_dropTarget->Register(m_hWnd);
870 }
871 // FIXME_MGL
872 #endif // wxUSE_DRAG_AND_DROP
873
874 // old style file-manager drag&drop support: we retain the old-style
875 // DragAcceptFiles in parallel with SetDropTarget.
876 void wxWindowMGL::DragAcceptFiles(bool WXUNUSED(accept))
877 {
878 #if 0 // FIXME_MGL
879 HWND hWnd = GetHwnd();
880 if ( hWnd )
881 ::DragAcceptFiles(hWnd, (BOOL)accept);
882 #endif
883 }
884
885 // ---------------------------------------------------------------------------
886 // moving and resizing
887 // ---------------------------------------------------------------------------
888
889 // Get total size
890 void wxWindowMGL::DoGetSize(int *x, int *y) const
891 {
892 wxASSERT_MSG( m_wnd, wxT("invalid window") );
893
894 if (x) *x = m_wnd->width;
895 if (y) *y = m_wnd->height;
896 }
897
898 void wxWindowMGL::DoGetPosition(int *x, int *y) const
899 {
900 wxASSERT_MSG( m_wnd, wxT("invalid window") );
901
902 int pX = 0, pY = 0;
903 AdjustForParentClientOrigin(pX, pY, 0);
904
905 if (x) *x = m_wnd->x - pX;
906 if (y) *y = m_wnd->y - pY;
907 }
908
909 void wxWindowMGL::DoScreenToClient(int *x, int *y) const
910 {
911 int ax, ay;
912 MGL_wmCoordGlobalToLocal(m_wnd, 0, 0, &ax, &ay);
913 if (x)
914 (*x) += ax;
915 if (y)
916 (*y) += ay;
917 }
918
919 void wxWindowMGL::DoClientToScreen(int *x, int *y) const
920 {
921 int ax, ay;
922 MGL_wmCoordLocalToGlobal(m_wnd, 0, 0, &ax, &ay);
923 if (x)
924 (*x) += ax;
925 if (y)
926 (*y) += ay;
927 }
928
929 // Get size *available for subwindows* i.e. excluding menu bar etc.
930 void wxWindowMGL::DoGetClientSize(int *x, int *y) const
931 {
932 DoGetSize(x, y);
933 }
934
935 void wxWindowMGL::DoMoveWindow(int x, int y, int width, int height)
936 {
937 wxRect rcClient(GetClientRect());
938
939 MGL_wmSetWindowPosition(m_wnd, x, y, width, height);
940
941 // When the origin or a window stays fixed but the height or width
942 // changes, invalidate the old and new non-client areas
943 if ( !HasFlag(wxFULL_REPAINT_ON_RESIZE) &&
944 m_wnd->x == x && m_wnd->y == y &&
945 rcClient.Intersect(GetClientRect()) != wxRect(0, 0, width, height) )
946 {
947 wxRegion rgn(0, 0, width, height);
948 rgn.Subtract(rcClient);
949
950 // This should work I think, but doesn't seem to:
951 //MGL_wmInvalidateWindowRegion(m_wnd, rgn.GetMGLRegion().rgnPointer());
952
953 // Use MGL_wmInvalidateWindowRect instead:
954 for (wxRegionIterator it(rgn); it; it++)
955 {
956 rect_t rc;
957 rc.left = it.GetX();
958 rc.top = it.GetY();
959 rc.right = rc.left + it.GetW();
960 rc.bottom = rc.top + it.GetH();
961 MGL_wmInvalidateWindowRect(m_wnd, &rc);
962 }
963 }
964 }
965
966 // set the size of the window: if the dimensions are positive, just use them,
967 // but if any of them is equal to -1, it means that we must find the value for
968 // it ourselves (unless sizeFlags contains wxSIZE_ALLOW_MINUS_ONE flag, in
969 // which case -1 is a valid value for x and y)
970 //
971 // If sizeFlags contains wxSIZE_AUTO_WIDTH/HEIGHT flags (default), we calculate
972 // the width/height to best suit our contents, otherwise we reuse the current
973 // width/height
974 void wxWindowMGL::DoSetSize(int x, int y, int width, int height, int sizeFlags)
975 {
976 // get the current size and position...
977 int currentX, currentY;
978 GetPosition(&currentX, &currentY);
979 int currentW,currentH;
980 GetSize(&currentW, &currentH);
981
982 // ... and don't do anything (avoiding flicker) if it's already ok
983 if ( x == currentX && y == currentY &&
984 width == currentW && height == currentH )
985 {
986 return;
987 }
988
989 if ( x == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
990 x = currentX;
991 if ( y == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
992 y = currentY;
993
994 AdjustForParentClientOrigin(x, y, sizeFlags);
995
996 wxSize size(-1, -1);
997 if ( width == -1 )
998 {
999 if ( sizeFlags & wxSIZE_AUTO_WIDTH )
1000 {
1001 size = DoGetBestSize();
1002 width = size.x;
1003 }
1004 else
1005 {
1006 // just take the current one
1007 width = currentW;
1008 }
1009 }
1010
1011 if ( height == -1 )
1012 {
1013 if ( sizeFlags & wxSIZE_AUTO_HEIGHT )
1014 {
1015 if ( size.x == -1 )
1016 {
1017 size = DoGetBestSize();
1018 }
1019 //else: already called DoGetBestSize() above
1020
1021 height = size.y;
1022 }
1023 else
1024 {
1025 // just take the current one
1026 height = currentH;
1027 }
1028 }
1029
1030 int maxWidth = GetMaxWidth(),
1031 minWidth = GetMinWidth(),
1032 maxHeight = GetMaxHeight(),
1033 minHeight = GetMinHeight();
1034
1035 if ( minWidth != -1 && width < minWidth ) width = minWidth;
1036 if ( maxWidth != -1 && width > maxWidth ) width = maxWidth;
1037 if ( minHeight != -1 && height < minHeight ) height = minHeight;
1038 if ( maxHeight != -1 && height > maxHeight ) height = maxHeight;
1039
1040 if ( m_wnd->x != x || m_wnd->y != y ||
1041 (int)m_wnd->width != width || (int)m_wnd->height != height )
1042 {
1043 DoMoveWindow(x, y, width, height);
1044
1045 wxSize newSize(width, height);
1046 wxSizeEvent event(newSize, GetId());
1047 event.SetEventObject(this);
1048 GetEventHandler()->ProcessEvent(event);
1049 }
1050 }
1051
1052 void wxWindowMGL::DoSetClientSize(int width, int height)
1053 {
1054 SetSize(width, height);
1055 }
1056
1057 // ---------------------------------------------------------------------------
1058 // text metrics
1059 // ---------------------------------------------------------------------------
1060
1061 int wxWindowMGL::GetCharHeight() const
1062 {
1063 wxScreenDC dc;
1064 dc.SetFont(m_font);
1065 return dc.GetCharHeight();
1066 }
1067
1068 int wxWindowMGL::GetCharWidth() const
1069 {
1070 wxScreenDC dc;
1071 dc.SetFont(m_font);
1072 return dc.GetCharWidth();
1073 }
1074
1075 void wxWindowMGL::GetTextExtent(const wxString& string,
1076 int *x, int *y,
1077 int *descent, int *externalLeading,
1078 const wxFont *theFont) const
1079 {
1080 wxScreenDC dc;
1081 if (!theFont)
1082 theFont = &m_font;
1083 dc.GetTextExtent(string, x, y, descent, externalLeading, (wxFont*)theFont);
1084 }
1085
1086
1087 // ---------------------------------------------------------------------------
1088 // painting
1089 // ---------------------------------------------------------------------------
1090
1091 void wxWindowMGL::Clear()
1092 {
1093 wxClientDC dc((wxWindow *)this);
1094 wxBrush brush(GetBackgroundColour(), wxSOLID);
1095 dc.SetBackground(brush);
1096 dc.Clear();
1097 }
1098
1099 #include "wx/menu.h"
1100 void wxWindowMGL::Refresh(bool eraseBack, const wxRect *rect)
1101 {
1102 if ( m_eraseBackground == -1 )
1103 m_eraseBackground = eraseBack;
1104 else
1105 m_eraseBackground |= eraseBack;
1106
1107 if ( rect )
1108 {
1109 rect_t r;
1110 r.left = rect->GetLeft(), r.right = rect->GetRight();
1111 r.top = rect->GetTop(), r.bottom = rect->GetBottom();
1112 MGL_wmInvalidateWindowRect(GetHandle(), &r);
1113 }
1114 else
1115 MGL_wmInvalidateWindow(GetHandle());
1116 }
1117
1118 void wxWindowMGL::Update()
1119 {
1120 if ( !m_frozen )
1121 MGL_wmUpdateDC(g_winMng);
1122 }
1123
1124 void wxWindowMGL::Freeze()
1125 {
1126 m_frozen = true;
1127 m_refreshAfterThaw = false;
1128 }
1129
1130 void wxWindowMGL::Thaw()
1131 {
1132 m_frozen = false;
1133 if ( m_refreshAfterThaw )
1134 Refresh();
1135 }
1136
1137 void wxWindowMGL::HandlePaint(MGLDevCtx *dc)
1138 {
1139 if ( m_frozen )
1140 {
1141 // Don't paint anything if the window is frozen.
1142 m_refreshAfterThaw = true;
1143 return;
1144 }
1145
1146 #ifdef __WXDEBUG__
1147 // FIXME_MGL -- debugging stuff, to be removed!
1148 static int debugPaintEvents = -1;
1149 if ( debugPaintEvents == -1 )
1150 debugPaintEvents = wxGetEnv(wxT("WXMGL_DEBUG_PAINT_EVENTS"), NULL);
1151 if ( debugPaintEvents )
1152 {
1153 dc->setColorRGB(255,0,255);
1154 dc->fillRect(-1000,-1000,2000,2000);
1155 wxUsleep(50);
1156 }
1157 #endif
1158
1159 MGLRegion clip;
1160 dc->getClipRegion(clip);
1161 m_updateRegion = wxRegion(clip);
1162 m_paintMGLDC = dc;
1163
1164 #if wxUSE_CARET
1165 // must hide caret temporarily, otherwise we'd get rendering artifacts
1166 wxCaret *caret = GetCaret();
1167 if ( caret )
1168 caret->Hide();
1169 #endif // wxUSE_CARET
1170
1171 if ( m_eraseBackground != 0 )
1172 {
1173 wxWindowDC dc((wxWindow*)this);
1174 wxEraseEvent eventEr(m_windowId, &dc);
1175 eventEr.SetEventObject(this);
1176 GetEventHandler()->ProcessEvent(eventEr);
1177 }
1178 m_eraseBackground = -1;
1179
1180 wxNcPaintEvent eventNc(GetId());
1181 eventNc.SetEventObject(this);
1182 GetEventHandler()->ProcessEvent(eventNc);
1183
1184 wxPaintEvent eventPt(GetId());
1185 eventPt.SetEventObject(this);
1186 GetEventHandler()->ProcessEvent(eventPt);
1187
1188 #if wxUSE_CARET
1189 if ( caret )
1190 caret->Show();
1191 #endif // wxUSE_CARET
1192
1193 m_paintMGLDC = NULL;
1194 m_updateRegion.Clear();
1195 }
1196
1197
1198 // Find the wxWindow at the current mouse position, returning the mouse
1199 // position.
1200 wxWindow* wxFindWindowAtPointer(wxPoint& pt)
1201 {
1202 return wxFindWindowAtPoint(pt = wxGetMousePosition());
1203 }
1204
1205 wxWindow* wxFindWindowAtPoint(const wxPoint& pt)
1206 {
1207 window_t *wnd = MGL_wmGetWindowAtPosition(g_winMng, pt.x, pt.y);
1208 return (wxWindow*)wnd->userData;
1209 }
1210
1211
1212 // ---------------------------------------------------------------------------
1213 // idle events processing
1214 // ---------------------------------------------------------------------------
1215
1216 void wxWindowMGL::OnInternalIdle()
1217 {
1218 if (wxUpdateUIEvent::CanUpdate(this))
1219 UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
1220 }
wxWidgets (Impactor)