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[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->GetEventHandler()->ProcessEvent(event2);
239 }
240
241 wxMouseEvent event3(event);
242 event3.SetEventType(wxEVT_ENTER_WINDOW);
243 win->GetEventHandler()->ProcessEvent(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->GetEventHandler()->ProcessEvent(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->GetEventHandler()->ProcessEvent(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->GetEventHandler()->ProcessEvent(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->GetEventHandler()->ProcessEvent(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->GetEventHandler()->ProcessEvent(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->GetParent()->GetEventHandler()->ProcessEvent(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_frozen = false;
554 m_paintMGLDC = NULL;
555 m_eraseBackground = -1;
556 }
557
558 // Destructor
559 wxWindowMGL::~wxWindowMGL()
560 {
561 SendDestroyEvent();
562
563 m_isBeingDeleted = true;
564
565 if ( gs_mouseCapture == this )
566 ReleaseMouse();
567
568 if (gs_activeFrame == this)
569 {
570 gs_activeFrame = NULL;
571 // activate next frame in Z-order:
572 if ( m_wnd->prev )
573 {
574 wxWindowMGL *win = (wxWindowMGL*)m_wnd->prev->userData;
575 win->SetFocus();
576 }
577 else if ( m_wnd->next )
578 {
579 wxWindowMGL *win = (wxWindowMGL*)m_wnd->next->userData;
580 win->SetFocus();
581 }
582 }
583
584 if ( gs_focusedWindow == this )
585 KillFocus();
586
587 if ( gs_windowUnderMouse == this )
588 gs_windowUnderMouse = NULL;
589
590 DestroyChildren();
591
592 if ( m_wnd )
593 MGL_wmDestroyWindow(m_wnd);
594 }
595
596 // real construction (Init() must have been called before!)
597 bool wxWindowMGL::Create(wxWindow *parent,
598 wxWindowID id,
599 const wxPoint& pos,
600 const wxSize& size,
601 long style,
602 const wxString& name)
603 {
604 if ( !CreateBase(parent, id, pos, size, style, wxDefaultValidator, name) )
605 return false;
606
607 if ( parent )
608 parent->AddChild(this);
609
610 int x, y, w, h;
611 x = pos.x, y = pos.y;
612 if ( x == -1 )
613 x = 0; // FIXME_MGL, something better, see GTK+
614 if ( y == -1 )
615 y = 0; // FIXME_MGL, something better, see GTK+
616 AdjustForParentClientOrigin(x, y, 0);
617 w = WidthDefault(size.x);
618 h = HeightDefault(size.y);
619
620 long mgl_style = 0;
621 window_t *wnd_parent = parent ? parent->GetHandle() : NULL;
622
623 if ( style & wxFULL_REPAINT_ON_RESIZE )
624 {
625 mgl_style |= MGL_WM_FULL_REPAINT_ON_RESIZE;
626 }
627 if ( style & wxSTAY_ON_TOP )
628 {
629 mgl_style |= MGL_WM_ALWAYS_ON_TOP;
630 }
631 if ( style & wxPOPUP_WINDOW )
632 {
633 mgl_style |= MGL_WM_ALWAYS_ON_TOP;
634 // it is created hidden as other top level windows
635 m_isShown = false;
636 wnd_parent = NULL;
637 }
638
639 window_t *wnd = MGL_wmCreateWindow(g_winMng, wnd_parent, x, y, w, h);
640
641 MGL_wmSetWindowFlags(wnd, mgl_style);
642 MGL_wmShowWindow(wnd, m_isShown);
643
644 SetMGLwindow_t(wnd);
645
646 return true;
647 }
648
649 void wxWindowMGL::SetMGLwindow_t(struct window_t *wnd)
650 {
651 if ( m_wnd )
652 MGL_wmDestroyWindow(m_wnd);
653
654 m_wnd = wnd;
655 if ( !m_wnd ) return;
656
657 m_isShown = (bool)m_wnd->visible;
658
659 MGL_wmSetWindowUserData(m_wnd, (void*) this);
660 MGL_wmSetWindowPainter(m_wnd, wxWindowPainter);
661 MGL_wmPushWindowEventHandler(m_wnd, wxWindowMouseHandler, EVT_MOUSEEVT, 0);
662 MGL_wmPushWindowEventHandler(m_wnd, wxWindowKeybHandler, EVT_KEYEVT, 0);
663
664 if ( m_cursor.Ok() )
665 MGL_wmSetWindowCursor(m_wnd, *m_cursor.GetMGLCursor());
666 else
667 MGL_wmSetWindowCursor(m_wnd, *wxSTANDARD_CURSOR->GetMGLCursor());
668 }
669
670 // ---------------------------------------------------------------------------
671 // basic operations
672 // ---------------------------------------------------------------------------
673
674 void wxWindowMGL::SetFocus()
675 {
676 if ( gs_focusedWindow == this ) return;
677
678 wxWindowMGL *oldFocusedWindow = gs_focusedWindow;
679
680 if ( gs_focusedWindow )
681 {
682 gs_toBeFocusedWindow = (wxWindow*)this;
683 gs_focusedWindow->KillFocus();
684 gs_toBeFocusedWindow = NULL;
685 }
686
687 gs_focusedWindow = this;
688
689 MGL_wmCaptureEvents(GetHandle(), EVT_KEYEVT, wxMGL_CAPTURE_KEYB);
690
691 wxWindowMGL *active = wxGetTopLevelParent(this);
692 if ( !(m_windowStyle & wxPOPUP_WINDOW) && active != gs_activeFrame )
693 {
694 if ( gs_activeFrame )
695 {
696 wxActivateEvent event(wxEVT_ACTIVATE, false, gs_activeFrame->GetId());
697 event.SetEventObject(gs_activeFrame);
698 gs_activeFrame->GetEventHandler()->ProcessEvent(event);
699 }
700
701 gs_activeFrame = active;
702 wxActivateEvent event(wxEVT_ACTIVATE, true, gs_activeFrame->GetId());
703 event.SetEventObject(gs_activeFrame);
704 gs_activeFrame->GetEventHandler()->ProcessEvent(event);
705 }
706
707 // notify the parent keeping track of focus for the kbd navigation
708 // purposes that we got it
709 wxChildFocusEvent eventFocus((wxWindow*)this);
710 GetEventHandler()->ProcessEvent(eventFocus);
711
712 wxFocusEvent event(wxEVT_SET_FOCUS, GetId());
713 event.SetEventObject(this);
714 event.SetWindow((wxWindow*)oldFocusedWindow);
715 GetEventHandler()->ProcessEvent(event);
716
717 #if wxUSE_CARET
718 // caret needs to be informed about focus change
719 wxCaret *caret = GetCaret();
720 if ( caret )
721 caret->OnSetFocus();
722 #endif // wxUSE_CARET
723 }
724
725 void wxWindowMGL::KillFocus()
726 {
727 if ( gs_focusedWindow != this ) return;
728 gs_focusedWindow = NULL;
729
730 if ( m_isBeingDeleted ) return;
731
732 MGL_wmUncaptureEvents(GetHandle(), wxMGL_CAPTURE_KEYB);
733
734 #if wxUSE_CARET
735 // caret needs to be informed about focus change
736 wxCaret *caret = GetCaret();
737 if ( caret )
738 caret->OnKillFocus();
739 #endif // wxUSE_CARET
740
741 wxFocusEvent event(wxEVT_KILL_FOCUS, GetId());
742 event.SetEventObject(this);
743 event.SetWindow(gs_toBeFocusedWindow);
744 GetEventHandler()->ProcessEvent(event);
745 }
746
747 // ----------------------------------------------------------------------------
748 // this wxWindowBase function is implemented here (in platform-specific file)
749 // because it is static and so couldn't be made virtual
750 // ----------------------------------------------------------------------------
751 wxWindow *wxWindowBase::DoFindFocus()
752 {
753 return (wxWindow*)gs_focusedWindow;
754 }
755
756 bool wxWindowMGL::Show(bool show)
757 {
758 if ( !wxWindowBase::Show(show) )
759 return false;
760
761 MGL_wmShowWindow(m_wnd, show);
762
763 if (!show && gs_activeFrame == this)
764 {
765 // activate next frame in Z-order:
766 if ( m_wnd->prev )
767 {
768 wxWindowMGL *win = (wxWindowMGL*)m_wnd->prev->userData;
769 win->SetFocus();
770 }
771 else if ( m_wnd->next )
772 {
773 wxWindowMGL *win = (wxWindowMGL*)m_wnd->next->userData;
774 win->SetFocus();
775 }
776 else
777 {
778 gs_activeFrame = NULL;
779 }
780 }
781
782 return true;
783 }
784
785 // Raise the window to the top of the Z order
786 void wxWindowMGL::Raise()
787 {
788 MGL_wmRaiseWindow(m_wnd);
789 }
790
791 // Lower the window to the bottom of the Z order
792 void wxWindowMGL::Lower()
793 {
794 MGL_wmLowerWindow(m_wnd);
795 }
796
797 void wxWindowMGL::DoCaptureMouse()
798 {
799 if ( gs_mouseCapture )
800 MGL_wmUncaptureEvents(gs_mouseCapture->m_wnd, wxMGL_CAPTURE_MOUSE);
801
802 gs_mouseCapture = this;
803 MGL_wmCaptureEvents(m_wnd, EVT_MOUSEEVT, wxMGL_CAPTURE_MOUSE);
804 }
805
806 void wxWindowMGL::DoReleaseMouse()
807 {
808 wxASSERT_MSG( gs_mouseCapture == this, wxT("attempt to release mouse, but this window hasn't captured it") );
809
810 MGL_wmUncaptureEvents(m_wnd, wxMGL_CAPTURE_MOUSE);
811 gs_mouseCapture = NULL;
812 }
813
814 /* static */ wxWindow *wxWindowBase::GetCapture()
815 {
816 return (wxWindow*)gs_mouseCapture;
817 }
818
819 bool wxWindowMGL::SetCursor(const wxCursor& cursor)
820 {
821 if ( !wxWindowBase::SetCursor(cursor) )
822 {
823 // no change
824 return false;
825 }
826
827 if ( m_cursor.Ok() )
828 MGL_wmSetWindowCursor(m_wnd, *m_cursor.GetMGLCursor());
829 else
830 MGL_wmSetWindowCursor(m_wnd, *wxSTANDARD_CURSOR->GetMGLCursor());
831
832 return true;
833 }
834
835 void wxWindowMGL::WarpPointer(int x, int y)
836 {
837 int w, h;
838 wxDisplaySize(&w, &h);
839
840 ClientToScreen(&x, &y);
841 if ( x < 0 )
842 x = 0;
843 if ( y < 0 )
844 y = 0;
845 if ( x >= w )
846 x = w-1;
847 if ( y >= h )
848 y = h-1;
849
850 EVT_setMousePos(x, y);
851 }
852
853 // Set this window to be the child of 'parent'.
854 bool wxWindowMGL::Reparent(wxWindowBase *parent)
855 {
856 if ( !wxWindowBase::Reparent(parent) )
857 return false;
858
859 MGL_wmReparentWindow(m_wnd, parent->GetHandle());
860
861 return true;
862 }
863
864
865 // ---------------------------------------------------------------------------
866 // drag and drop
867 // ---------------------------------------------------------------------------
868
869 #if wxUSE_DRAG_AND_DROP
870
871 void wxWindowMGL::SetDropTarget(wxDropTarget *pDropTarget)
872 {
873 if ( m_dropTarget != 0 ) {
874 m_dropTarget->Revoke(m_hWnd);
875 delete m_dropTarget;
876 }
877
878 m_dropTarget = pDropTarget;
879 if ( m_dropTarget != 0 )
880 m_dropTarget->Register(m_hWnd);
881 }
882 // FIXME_MGL
883 #endif // wxUSE_DRAG_AND_DROP
884
885 // old style file-manager drag&drop support: we retain the old-style
886 // DragAcceptFiles in parallel with SetDropTarget.
887 void wxWindowMGL::DragAcceptFiles(bool WXUNUSED(accept))
888 {
889 #if 0 // FIXME_MGL
890 HWND hWnd = GetHwnd();
891 if ( hWnd )
892 ::DragAcceptFiles(hWnd, (BOOL)accept);
893 #endif
894 }
895
896 // ---------------------------------------------------------------------------
897 // moving and resizing
898 // ---------------------------------------------------------------------------
899
900 // Get total size
901 void wxWindowMGL::DoGetSize(int *x, int *y) const
902 {
903 wxASSERT_MSG( m_wnd, wxT("invalid window") );
904
905 if (x) *x = m_wnd->width;
906 if (y) *y = m_wnd->height;
907 }
908
909 void wxWindowMGL::DoGetPosition(int *x, int *y) const
910 {
911 wxASSERT_MSG( m_wnd, wxT("invalid window") );
912
913 int pX = 0, pY = 0;
914 AdjustForParentClientOrigin(pX, pY, 0);
915
916 if (x) *x = m_wnd->x - pX;
917 if (y) *y = m_wnd->y - pY;
918 }
919
920 void wxWindowMGL::DoScreenToClient(int *x, int *y) const
921 {
922 int ax, ay;
923 MGL_wmCoordGlobalToLocal(m_wnd, 0, 0, &ax, &ay);
924 if (x)
925 (*x) += ax;
926 if (y)
927 (*y) += ay;
928 }
929
930 void wxWindowMGL::DoClientToScreen(int *x, int *y) const
931 {
932 int ax, ay;
933 MGL_wmCoordLocalToGlobal(m_wnd, 0, 0, &ax, &ay);
934 if (x)
935 (*x) += ax;
936 if (y)
937 (*y) += ay;
938 }
939
940 // Get size *available for subwindows* i.e. excluding menu bar etc.
941 void wxWindowMGL::DoGetClientSize(int *x, int *y) const
942 {
943 DoGetSize(x, y);
944 }
945
946 void wxWindowMGL::DoMoveWindow(int x, int y, int width, int height)
947 {
948 wxRect rcClient(GetClientRect());
949
950 MGL_wmSetWindowPosition(m_wnd, x, y, width, height);
951
952 // When the origin or a window stays fixed but the height or width
953 // changes, invalidate the old and new non-client areas
954 if ( !HasFlag(wxFULL_REPAINT_ON_RESIZE) &&
955 m_wnd->x == x && m_wnd->y == y &&
956 rcClient.Intersect(GetClientRect()) != wxRect(0, 0, width, height) )
957 {
958 wxRegion rgn(0, 0, width, height);
959 rgn.Subtract(rcClient);
960
961 // This should work I think, but doesn't seem to:
962 //MGL_wmInvalidateWindowRegion(m_wnd, rgn.GetMGLRegion().rgnPointer());
963
964 // Use MGL_wmInvalidateWindowRect instead:
965 for (wxRegionIterator it(rgn); it; it++)
966 {
967 rect_t rc;
968 rc.left = it.GetX();
969 rc.top = it.GetY();
970 rc.right = rc.left + it.GetW();
971 rc.bottom = rc.top + it.GetH();
972 MGL_wmInvalidateWindowRect(m_wnd, &rc);
973 }
974 }
975 }
976
977 // set the size of the window: if the dimensions are positive, just use them,
978 // but if any of them is equal to -1, it means that we must find the value for
979 // it ourselves (unless sizeFlags contains wxSIZE_ALLOW_MINUS_ONE flag, in
980 // which case -1 is a valid value for x and y)
981 //
982 // If sizeFlags contains wxSIZE_AUTO_WIDTH/HEIGHT flags (default), we calculate
983 // the width/height to best suit our contents, otherwise we reuse the current
984 // width/height
985 void wxWindowMGL::DoSetSize(int x, int y, int width, int height, int sizeFlags)
986 {
987 // get the current size and position...
988 int currentX, currentY;
989 GetPosition(&currentX, &currentY);
990 int currentW,currentH;
991 GetSize(&currentW, &currentH);
992
993 // ... and don't do anything (avoiding flicker) if it's already ok
994 if ( x == currentX && y == currentY &&
995 width == currentW && height == currentH )
996 {
997 return;
998 }
999
1000 if ( x == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
1001 x = currentX;
1002 if ( y == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
1003 y = currentY;
1004
1005 AdjustForParentClientOrigin(x, y, sizeFlags);
1006
1007 wxSize size(-1, -1);
1008 if ( width == -1 )
1009 {
1010 if ( sizeFlags & wxSIZE_AUTO_WIDTH )
1011 {
1012 size = DoGetBestSize();
1013 width = size.x;
1014 }
1015 else
1016 {
1017 // just take the current one
1018 width = currentW;
1019 }
1020 }
1021
1022 if ( height == -1 )
1023 {
1024 if ( sizeFlags & wxSIZE_AUTO_HEIGHT )
1025 {
1026 if ( size.x == -1 )
1027 {
1028 size = DoGetBestSize();
1029 }
1030 //else: already called DoGetBestSize() above
1031
1032 height = size.y;
1033 }
1034 else
1035 {
1036 // just take the current one
1037 height = currentH;
1038 }
1039 }
1040
1041 int maxWidth = GetMaxWidth(),
1042 minWidth = GetMinWidth(),
1043 maxHeight = GetMaxHeight(),
1044 minHeight = GetMinHeight();
1045
1046 if ( minWidth != -1 && width < minWidth ) width = minWidth;
1047 if ( maxWidth != -1 && width > maxWidth ) width = maxWidth;
1048 if ( minHeight != -1 && height < minHeight ) height = minHeight;
1049 if ( maxHeight != -1 && height > maxHeight ) height = maxHeight;
1050
1051 if ( m_wnd->x != x || m_wnd->y != y ||
1052 (int)m_wnd->width != width || (int)m_wnd->height != height )
1053 {
1054 DoMoveWindow(x, y, width, height);
1055
1056 wxSize newSize(width, height);
1057 wxSizeEvent event(newSize, GetId());
1058 event.SetEventObject(this);
1059 GetEventHandler()->ProcessEvent(event);
1060 }
1061 }
1062
1063 void wxWindowMGL::DoSetClientSize(int width, int height)
1064 {
1065 SetSize(width, height);
1066 }
1067
1068 // ---------------------------------------------------------------------------
1069 // text metrics
1070 // ---------------------------------------------------------------------------
1071
1072 int wxWindowMGL::GetCharHeight() const
1073 {
1074 wxScreenDC dc;
1075 dc.SetFont(m_font);
1076 return dc.GetCharHeight();
1077 }
1078
1079 int wxWindowMGL::GetCharWidth() const
1080 {
1081 wxScreenDC dc;
1082 dc.SetFont(m_font);
1083 return dc.GetCharWidth();
1084 }
1085
1086 void wxWindowMGL::GetTextExtent(const wxString& string,
1087 int *x, int *y,
1088 int *descent, int *externalLeading,
1089 const wxFont *theFont) const
1090 {
1091 wxScreenDC dc;
1092 if (!theFont)
1093 theFont = &m_font;
1094 dc.GetTextExtent(string, x, y, descent, externalLeading, (wxFont*)theFont);
1095 }
1096
1097
1098 // ---------------------------------------------------------------------------
1099 // painting
1100 // ---------------------------------------------------------------------------
1101
1102 void wxWindowMGL::Clear()
1103 {
1104 wxClientDC dc((wxWindow *)this);
1105 wxBrush brush(GetBackgroundColour(), wxSOLID);
1106 dc.SetBackground(brush);
1107 dc.Clear();
1108 }
1109
1110 void wxWindowMGL::Refresh(bool eraseBack, const wxRect *rect)
1111 {
1112 if ( m_eraseBackground == -1 )
1113 m_eraseBackground = eraseBack;
1114 else
1115 m_eraseBackground |= eraseBack;
1116
1117 if ( rect )
1118 {
1119 rect_t r;
1120 r.left = rect->GetLeft(), r.right = rect->GetRight();
1121 r.top = rect->GetTop(), r.bottom = rect->GetBottom();
1122 MGL_wmInvalidateWindowRect(GetHandle(), &r);
1123 }
1124 else
1125 MGL_wmInvalidateWindow(GetHandle());
1126 }
1127
1128 void wxWindowMGL::Update()
1129 {
1130 if ( !m_frozen )
1131 MGL_wmUpdateDC(g_winMng);
1132 }
1133
1134 void wxWindowMGL::Freeze()
1135 {
1136 m_frozen = true;
1137 m_refreshAfterThaw = false;
1138 }
1139
1140 void wxWindowMGL::Thaw()
1141 {
1142 m_frozen = false;
1143 if ( m_refreshAfterThaw )
1144 Refresh();
1145 }
1146
1147 void wxWindowMGL::HandlePaint(MGLDevCtx *dc)
1148 {
1149 if ( m_frozen )
1150 {
1151 // Don't paint anything if the window is frozen.
1152 m_refreshAfterThaw = true;
1153 return;
1154 }
1155
1156 #ifdef __WXDEBUG__
1157 // FIXME_MGL -- debugging stuff, to be removed!
1158 static int debugPaintEvents = -1;
1159 if ( debugPaintEvents == -1 )
1160 debugPaintEvents = wxGetEnv(wxT("WXMGL_DEBUG_PAINT_EVENTS"), NULL);
1161 if ( debugPaintEvents )
1162 {
1163 dc->setColorRGB(255,0,255);
1164 dc->fillRect(-1000,-1000,2000,2000);
1165 wxMilliSleep(50);
1166 }
1167 #endif
1168
1169 MGLRegion clip;
1170 dc->getClipRegion(clip);
1171 m_updateRegion = wxRegion(clip);
1172 m_paintMGLDC = dc;
1173
1174 #if wxUSE_CARET
1175 // must hide caret temporarily, otherwise we'd get rendering artifacts
1176 wxCaret *caret = GetCaret();
1177 if ( caret )
1178 caret->Hide();
1179 #endif // wxUSE_CARET
1180
1181 if ( m_eraseBackground != 0 )
1182 {
1183 wxWindowDC dc((wxWindow*)this);
1184 wxEraseEvent eventEr(m_windowId, &dc);
1185 eventEr.SetEventObject(this);
1186 GetEventHandler()->ProcessEvent(eventEr);
1187 }
1188 m_eraseBackground = -1;
1189
1190 wxNcPaintEvent eventNc(GetId());
1191 eventNc.SetEventObject(this);
1192 GetEventHandler()->ProcessEvent(eventNc);
1193
1194 wxPaintEvent eventPt(GetId());
1195 eventPt.SetEventObject(this);
1196 GetEventHandler()->ProcessEvent(eventPt);
1197
1198 #if wxUSE_CARET
1199 if ( caret )
1200 caret->Show();
1201 #endif // wxUSE_CARET
1202
1203 m_paintMGLDC = NULL;
1204 m_updateRegion.Clear();
1205 }
1206
1207
1208 // Find the wxWindow at the current mouse position, returning the mouse
1209 // position.
1210 wxWindow* wxFindWindowAtPointer(wxPoint& pt)
1211 {
1212 return wxFindWindowAtPoint(pt = wxGetMousePosition());
1213 }
1214
1215 wxWindow* wxFindWindowAtPoint(const wxPoint& pt)
1216 {
1217 window_t *wnd = MGL_wmGetWindowAtPosition(g_winMng, pt.x, pt.y);
1218 return (wxWindow*)wnd->userData;
1219 }
1220
1221
1222 // ---------------------------------------------------------------------------
1223 // idle events processing
1224 // ---------------------------------------------------------------------------
1225
1226 void wxWindowMGL::OnInternalIdle()
1227 {
1228 if (wxUpdateUIEvent::CanUpdate(this))
1229 UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
1230 }
wxWidgets (Impactor)