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 license
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 // ===========================================================================
  12 // declarations
  13 // ===========================================================================
  14
  15 // ---------------------------------------------------------------------------
  16 // headers
  17 // ---------------------------------------------------------------------------
  18
  19 #ifdef __GNUG__
  20     #pragma implementation "window.h"
  21 #endif
  22
  23 // For compilers that support precompilation, includes "wx.h".
  24 #include "wx/wxprec.h"
  25
  26 #ifdef __BORLANDC__
  27     #pragma hdrstop
  28 #endif
  29
  30 #ifndef WX_PRECOMP
  31     #include "wx/window.h"
  32     #include "wx/msgdlg.h"
  33     #include "wx/accel.h"
  34     #include "wx/setup.h"
  35     #include "wx/dc.h"
  36     #include "wx/dcclient.h"
  37     #include "wx/utils.h"
  38     #include "wx/app.h"
  39     #include "wx/panel.h"
  40     #include "wx/caret.h"
  41 #endif
  42
  43 #if wxUSE_DRAG_AND_DROP
  44     #include "wx/dnd.h"
  45 #endif
  46
  47 #include "wx/log.h"
  48 #include "wx/sysopt.h"
  49 #include "wx/mgl/private.h"
  50 #include "wx/intl.h"
  51 #include "wx/dcscreen.h"
  52
  53 #include <mgraph.hpp>
  54
  55 #if wxUSE_TOOLTIPS
  56     #include "wx/tooltip.h"
  57 #endif
  58
  59 // ---------------------------------------------------------------------------
  60 // global variables
  61 // ---------------------------------------------------------------------------
  62
  63 // MGL window manager and associated DC.
  64 winmng_t *g_winMng = NULL;
  65 MGLDevCtx *g_displayDC = NULL;
  66
  67 // the window that has keyboard focus:
  68 static wxWindowMGL *gs_focusedWindow = NULL;
  69 // the window that is about to be focused after currently focused
  70 // one looses focus:
  71 static wxWindow *gs_toBeFocusedWindow = NULL;
  72 // the window that is currently under mouse cursor:
  73 static wxWindowMGL *gs_windowUnderMouse = NULL;
  74 // the window that has mouse capture
  75 static wxWindowMGL *gs_mouseCapture = NULL;
  76 // the frame that is currently active (i.e. its child has focus). It is
  77 // used to generate wxActivateEvents
  78 static wxWindowMGL *gs_activeFrame = NULL;
  79
  80 // ---------------------------------------------------------------------------
  81 // constants
  82 // ---------------------------------------------------------------------------
  83
  84 // Custom identifiers used to distinguish between various event handlers
  85 // and capture handlers passed to MGL_wm
  86 enum
  87 {
  88     wxMGL_CAPTURE_MOUSE = 1,
  89     wxMGL_CAPTURE_KEYB  = 2
  90 };
  91
  92
  93 // ---------------------------------------------------------------------------
  94 // private functions
  95 // ---------------------------------------------------------------------------
  96
  97 // Returns toplevel grandparent of given window:
  98 static wxWindowMGL* wxGetTopLevelParent(wxWindowMGL *win)
  99 {
 100     wxWindowMGL *p = win;
 101     while (p && !p->IsTopLevel())
 102          p = p->GetParent();
 103     return p;
 104 }
 105
 106 // An easy way to capture screenshots:
 107 static void wxCaptureScreenshot(bool activeWindowOnly)
 108 {
 109 #ifdef __DOS__
 110     #define SCREENSHOT_FILENAME _T("sshot%03i.png")
 111 #else
 112     #define SCREENSHOT_FILENAME _T("screenshot-%03i.png")
 113 #endif
 114     static int screenshot_num = 0;
 115     wxString screenshot;
 116
 117     do
 118     {
 119         screenshot.Printf(SCREENSHOT_FILENAME, screenshot_num++);
 120     } while ( wxFileExists(screenshot) && screenshot_num < 1000 );
 121
 122     wxRect r(0, 0, g_displayDC->sizex(), g_displayDC->sizey());
 123
 124     if ( activeWindowOnly && gs_activeFrame )
 125     {
 126         r.Intersect(gs_activeFrame->GetRect());
 127     }
 128
 129     g_displayDC->savePNGFromDC(screenshot.mb_str(),
 130                                r.x, r. y, r.x+r.width, r.y+r.height);
 131
 132     wxMessageBox(_("Screenshot captured: ") + wxString(screenshot));
 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     MGL_wmCoordGlobalToLocal(win->GetHandle(),
 157                              e->where_x, e->where_y, &where.x, &where.y);
 158
 159     for (wxWindowMGL *w = win; w; w = w->GetParent())
 160     {
 161         if ( !w->IsEnabled() )
 162             return FALSE;
 163         if ( w->IsTopLevel() )
 164             break;
 165     }
 166
 167     wxEventType type = wxEVT_NULL;
 168     wxMouseEvent event;
 169     event.SetEventObject(win);
 170     event.SetTimestamp(e->when);
 171     event.m_x = where.x - orig.x;
 172     event.m_y = where.y - orig.y;
 173     event.m_shiftDown = e->modifiers & EVT_SHIFTKEY;
 174     event.m_controlDown = e->modifiers & EVT_CTRLSTATE;
 175     event.m_altDown = e->modifiers & EVT_LEFTALT;
 176     event.m_metaDown = e->modifiers & EVT_RIGHTALT;
 177     event.m_leftDown = e->modifiers & EVT_LEFTBUT;
 178     event.m_middleDown = e->modifiers & EVT_MIDDLEBUT;
 179     event.m_rightDown = e->modifiers & EVT_RIGHTBUT;
 180
 181     switch (e->what)
 182     {
 183         case EVT_MOUSEDOWN:
 184             // Change focus if the user clicks outside focused window:
 185             if ( win->AcceptsFocus() && wxWindow::FindFocus() != win )
 186                 win->SetFocus();
 187
 188             if ( e->message & EVT_DBLCLICK )
 189             {
 190                 if ( e->message & EVT_LEFTBMASK )
 191                     type = wxEVT_LEFT_DCLICK;
 192                 else if ( e->message & EVT_MIDDLEBMASK )
 193                     type = wxEVT_MIDDLE_DCLICK;
 194                 else if ( e->message & EVT_RIGHTBMASK )
 195                     type = wxEVT_RIGHT_DCLICK;
 196             }
 197             else
 198             {
 199                 if ( e->message & EVT_LEFTBMASK )
 200                     type = wxEVT_LEFT_DOWN;
 201                 else if ( e->message & EVT_MIDDLEBMASK )
 202                     type = wxEVT_MIDDLE_DOWN;
 203                 else if ( e->message & EVT_RIGHTBMASK )
 204                     type = wxEVT_RIGHT_DOWN;
 205             }
 206
 207             break;
 208
 209         case EVT_MOUSEUP:
 210             if ( e->message & EVT_LEFTBMASK )
 211                 type = wxEVT_LEFT_UP;
 212             else if ( e->message & EVT_MIDDLEBMASK )
 213                 type = wxEVT_MIDDLE_UP;
 214             else if ( e->message & EVT_RIGHTBMASK )
 215                 type = wxEVT_RIGHT_UP;
 216             break;
 217
 218         case EVT_MOUSEMOVE:
 219             if ( !gs_mouseCapture )
 220             {
 221                 if ( win != gs_windowUnderMouse )
 222                 {
 223                     if ( gs_windowUnderMouse )
 224                     {
 225                         wxMouseEvent event2(event);
 226                         MGL_wmCoordGlobalToLocal(gs_windowUnderMouse->GetHandle(),
 227                                                  e->where_x, e->where_y,
 228                                                  &event2.m_x, &event2.m_y);
 229
 230                         wxPoint orig(gs_windowUnderMouse->GetClientAreaOrigin());
 231                         event2.m_x -= orig.x;
 232                         event2.m_y -= orig.y;
 233
 234                         event2.SetEventObject(gs_windowUnderMouse);
 235                         event2.SetEventType(wxEVT_LEAVE_WINDOW);
 236                         gs_windowUnderMouse->GetEventHandler()->ProcessEvent(event2);
 237                     }
 238
 239                     wxMouseEvent event3(event);
 240                     event3.SetEventType(wxEVT_ENTER_WINDOW);
 241                     win->GetEventHandler()->ProcessEvent(event3);
 242
 243                     gs_windowUnderMouse = win;
 244                 }
 245             }
 246             else // gs_mouseCapture
 247             {
 248                 bool inside = (where.x >= 0 &&
 249                                where.y >= 0 &&
 250                                where.x < win->GetSize().x &&
 251                                where.y < win->GetSize().y);
 252                 if ( (inside && gs_windowUnderMouse != win) ||
 253                      (!inside && gs_windowUnderMouse == win) )
 254                 {
 255                     wxMouseEvent evt(inside ?
 256                                      wxEVT_ENTER_WINDOW : wxEVT_LEAVE_WINDOW);
 257                     evt.SetEventObject(win);
 258                     win->GetEventHandler()->ProcessEvent(evt);
 259                     gs_windowUnderMouse = inside ? win : NULL;
 260                 }
 261             }
 262
 263             type = wxEVT_MOTION;
 264             break;
 265
 266         default:
 267             break;
 268     }
 269
 270     if ( type == wxEVT_NULL )
 271     {
 272         return FALSE;
 273     }
 274     else
 275     {
 276         event.SetEventType(type);
 277         return win->GetEventHandler()->ProcessEvent(event);
 278     }
 279 }
 280
 281 static long wxScanToKeyCode(event_t *event, bool translate)
 282 {
 283     // VS: make it __WXDEBUG__-only, since we have lots of wxLogTrace calls
 284     //     here and the arguments would be stored in non-debug executable even
 285     //     though wxLogTrace would be no-op...
 286     #ifdef __WXDEBUG__
 287       #define KEY(mgl_key,wx_key) \
 288         case mgl_key: \
 289           wxLogTrace(_T("keyevents"), \
 290                      _T("key " #mgl_key ", mapped to " #wx_key)); \
 291           key = wx_key; \
 292           break;
 293     #else
 294       #define KEY(mgl_key,wx_key) \
 295         case mgl_key: key = wx_key; break;
 296     #endif
 297
 298     long key = 0;
 299
 300     if ( translate )
 301     {
 302         switch ( EVT_scanCode(event->message) )
 303         {
 304             KEY (KB_padMinus,       WXK_NUMPAD_SUBTRACT)
 305             KEY (KB_padPlus,        WXK_NUMPAD_ADD)
 306             KEY (KB_padTimes,       WXK_NUMPAD_MULTIPLY)
 307             KEY (KB_padDivide,      WXK_NUMPAD_DIVIDE)
 308             KEY (KB_padCenter,      WXK_NUMPAD_SEPARATOR) // ?
 309             KEY (KB_padLeft,        WXK_NUMPAD_LEFT)
 310             KEY (KB_padRight,       WXK_NUMPAD_RIGHT)
 311             KEY (KB_padUp,          WXK_NUMPAD_UP)
 312             KEY (KB_padDown,        WXK_NUMPAD_DOWN)
 313             KEY (KB_padInsert,      WXK_NUMPAD_INSERT)
 314             KEY (KB_padDelete,      WXK_NUMPAD_DELETE)
 315             KEY (KB_padHome,        WXK_NUMPAD_HOME)
 316             KEY (KB_padEnd,         WXK_NUMPAD_END)
 317             KEY (KB_padPageUp,      WXK_NUMPAD_PAGEUP)
 318           //KEY (KB_padPageUp,      WXK_NUMPAD_PRIOR)
 319             KEY (KB_padPageDown,    WXK_NUMPAD_PAGEDOWN)
 320           //KEY (KB_padPageDown,    WXK_NUMPAD_NEXT)
 321             KEY (KB_1,              '1')
 322             KEY (KB_2,              '2')
 323             KEY (KB_3,              '3')
 324             KEY (KB_4,              '4')
 325             KEY (KB_5,              '5')
 326             KEY (KB_6,              '6')
 327             KEY (KB_7,              '7')
 328             KEY (KB_8,              '8')
 329             KEY (KB_9,              '9')
 330             KEY (KB_0,              '0')
 331             KEY (KB_minus,          WXK_SUBTRACT)
 332             KEY (KB_equals,         WXK_ADD)
 333             KEY (KB_backSlash,      '\\')
 334             KEY (KB_Q,              'Q')
 335             KEY (KB_W,              'W')
 336             KEY (KB_E,              'E')
 337             KEY (KB_R,              'R')
 338             KEY (KB_T,              'T')
 339             KEY (KB_Y,              'Y')
 340             KEY (KB_U,              'U')
 341             KEY (KB_I,              'I')
 342             KEY (KB_O,              'O')
 343             KEY (KB_P,              'P')
 344             KEY (KB_leftSquareBrace,'[')
 345             KEY (KB_rightSquareBrace,']')
 346             KEY (KB_A,              'A')
 347             KEY (KB_S,              'S')
 348             KEY (KB_D,              'D')
 349             KEY (KB_F,              'F')
 350             KEY (KB_G,              'G')
 351             KEY (KB_H,              'H')
 352             KEY (KB_J,              'J')
 353             KEY (KB_K,              'K')
 354             KEY (KB_L,              'L')
 355             KEY (KB_semicolon,      ';')
 356             KEY (KB_apostrophe,     '\'')
 357             KEY (KB_Z,              'Z')
 358             KEY (KB_X,              'X')
 359             KEY (KB_C,              'C')
 360             KEY (KB_V,              'V')
 361             KEY (KB_B,              'B')
 362             KEY (KB_N,              'N')
 363             KEY (KB_M,              'M')
 364             KEY (KB_comma,          ',')
 365             KEY (KB_period,         '.')
 366             KEY (KB_divide,         WXK_DIVIDE)
 367             KEY (KB_space,          WXK_SPACE)
 368             KEY (KB_tilde,          '~')
 369
 370             default: break;
 371         }
 372     }
 373
 374     if ( key == 0 )
 375     {
 376         switch ( EVT_scanCode(event->message) )
 377         {
 378             KEY (KB_padEnter,       WXK_NUMPAD_ENTER)
 379             KEY (KB_F1,             WXK_F1)
 380             KEY (KB_F2,             WXK_F2)
 381             KEY (KB_F3,             WXK_F3)
 382             KEY (KB_F4,             WXK_F4)
 383             KEY (KB_F5,             WXK_F5)
 384             KEY (KB_F6,             WXK_F6)
 385             KEY (KB_F7,             WXK_F7)
 386             KEY (KB_F8,             WXK_F8)
 387             KEY (KB_F9,             WXK_F9)
 388             KEY (KB_F10,            WXK_F10)
 389             KEY (KB_F11,            WXK_F11)
 390             KEY (KB_F12,            WXK_F12)
 391             KEY (KB_left,           WXK_LEFT)
 392             KEY (KB_right,          WXK_RIGHT)
 393             KEY (KB_up,             WXK_UP)
 394             KEY (KB_down,           WXK_DOWN)
 395             KEY (KB_insert,         WXK_INSERT)
 396             KEY (KB_delete,         WXK_DELETE)
 397             KEY (KB_home,           WXK_HOME)
 398             KEY (KB_end,            WXK_END)
 399             KEY (KB_pageUp,         WXK_PAGEUP)
 400             KEY (KB_pageDown,       WXK_PAGEDOWN)
 401             KEY (KB_capsLock,       WXK_CAPITAL)
 402             KEY (KB_numLock,        WXK_NUMLOCK)
 403             KEY (KB_scrollLock,     WXK_SCROLL)
 404             KEY (KB_leftShift,      WXK_SHIFT)
 405             KEY (KB_rightShift,     WXK_SHIFT)
 406             KEY (KB_leftCtrl,       WXK_CONTROL)
 407             KEY (KB_rightCtrl,      WXK_CONTROL)
 408             KEY (KB_leftAlt,        WXK_ALT)
 409             KEY (KB_rightAlt,       WXK_ALT)
 410             KEY (KB_leftWindows,    WXK_START)
 411             KEY (KB_rightWindows,   WXK_START)
 412             KEY (KB_menu,           WXK_MENU)
 413             KEY (KB_sysReq,         WXK_SNAPSHOT)
 414             KEY (KB_esc,            WXK_ESCAPE)
 415             KEY (KB_backspace,      WXK_BACK)
 416             KEY (KB_tab,            WXK_TAB)
 417             KEY (KB_enter,          WXK_RETURN)
 418
 419             default:
 420                 key = EVT_asciiCode(event->message);
 421                 break;
 422         }
 423     }
 424
 425     #undef KEY
 426
 427     return key;
 428 }
 429
 430 static bool wxHandleSpecialKeys(wxKeyEvent& event)
 431 {
 432     // Add an easy way to capture screenshots:
 433     if ( event.m_keyCode == WXK_SNAPSHOT
 434     #ifdef __WXDEBUG__ // FIXME_MGL - remove when KB_sysReq works in MGL!
 435          || (event.m_keyCode == WXK_F1 &&
 436             event.m_shiftDown && event.m_controlDown)
 437        )
 438     #endif
 439     {
 440         wxCaptureScreenshot(event.m_altDown/*only active wnd?*/);
 441         return TRUE;
 442     }
 443
 444     if ( event.m_keyCode == WXK_F4 && event.m_altDown &&
 445          gs_activeFrame != NULL )
 446     {
 447         gs_activeFrame->Close();
 448         return TRUE;
 449     }
 450
 451     return FALSE;
 452 }
 453
 454 static ibool MGLAPI wxWindowKeybHandler(window_t *wnd, event_t *e)
 455 {
 456     wxWindowMGL *win = (wxWindowMGL*)MGL_wmGetWindowUserData(wnd);
 457
 458     if ( !win->IsEnabled() ) return FALSE;
 459
 460     wxPoint where;
 461     MGL_wmCoordGlobalToLocal(win->GetHandle(),
 462                              e->where_x, e->where_y, &where.x, &where.y);
 463
 464     wxKeyEvent event;
 465     event.SetEventObject(win);
 466     event.SetTimestamp(e->when);
 467     event.m_keyCode = wxScanToKeyCode(e, TRUE);
 468     event.m_scanCode = 0; // not used by wx at all
 469     event.m_x = where.x;
 470     event.m_y = where.y;
 471     event.m_shiftDown = e->modifiers & EVT_SHIFTKEY;
 472     event.m_controlDown = e->modifiers & EVT_CTRLSTATE;
 473     event.m_altDown = e->modifiers & EVT_LEFTALT;
 474     event.m_metaDown = e->modifiers & EVT_RIGHTALT;
 475
 476     if ( e->what == EVT_KEYUP )
 477     {
 478         event.SetEventType(wxEVT_KEY_UP);
 479         return win->GetEventHandler()->ProcessEvent(event);
 480     }
 481     else
 482     {
 483         bool ret;
 484         wxKeyEvent event2;
 485
 486         event.SetEventType(wxEVT_KEY_DOWN);
 487         event2 = event;
 488
 489         ret = win->GetEventHandler()->ProcessEvent(event);
 490
 491         // wxMSW doesn't send char events with Alt pressed
 492         // Only send wxEVT_CHAR event if not processed yet. Thus, ALT-x
 493         // will only be sent if it is not in an accelerator table:
 494         event2.m_keyCode = wxScanToKeyCode(e, FALSE);
 495         if ( !ret && event2.m_keyCode != 0 )
 496         {
 497             event2.SetEventType(wxEVT_CHAR);
 498             ret = win->GetEventHandler()->ProcessEvent(event2);
 499         }
 500
 501         // Synthetize navigation key event, but do it only if the TAB key
 502         // wasn't handled yet:
 503         if ( !ret && event.m_keyCode == WXK_TAB &&
 504              win->GetParent() && win->GetParent()->HasFlag(wxTAB_TRAVERSAL) )
 505         {
 506             wxNavigationKeyEvent navEvent;
 507             navEvent.SetEventObject(win->GetParent());
 508             // Shift-TAB goes in reverse direction:
 509             navEvent.SetDirection(!event.m_shiftDown);
 510             // Ctrl-TAB changes the (parent) window, i.e. switch notebook page:
 511             navEvent.SetWindowChange(event.m_controlDown);
 512             navEvent.SetCurrentFocus(wxStaticCast(win, wxWindow));
 513             ret = win->GetParent()->GetEventHandler()->ProcessEvent(navEvent);
 514         }
 515
 516         // Finally, process special meaning keys that are usually
 517         // a responsibility of OS or window manager:
 518         if ( !ret )
 519             ret = wxHandleSpecialKeys(event);
 520
 521         return ret;
 522     }
 523 }
 524
 525 // ---------------------------------------------------------------------------
 526 // event tables
 527 // ---------------------------------------------------------------------------
 528
 529 // in wxUniv this class is abstract because it doesn't have DoPopupMenu()
 530 IMPLEMENT_ABSTRACT_CLASS(wxWindowMGL, wxWindowBase)
 531
 532 BEGIN_EVENT_TABLE(wxWindowMGL, wxWindowBase)
 533     EVT_IDLE(wxWindowMGL::OnIdle)
 534 END_EVENT_TABLE()
 535
 536 // ===========================================================================
 537 // implementation
 538 // ===========================================================================
 539
 540 // ----------------------------------------------------------------------------
 541 // constructors and such
 542 // ----------------------------------------------------------------------------
 543
 544 extern wxDisplayModeInfo wxGetDefaultDisplayMode();
 545
 546 void wxWindowMGL::Init()
 547 {
 548     // First of all, make sure window manager is up and running. If it is
 549     // not the case, initialize it in default display mode
 550     if ( !g_winMng )
 551     {
 552         if ( !wxTheApp->SetDisplayMode(wxGetDefaultDisplayMode()) )
 553             wxFatalError(_("Cannot initialize display."));
 554     }
 555
 556     // generic:
 557     InitBase();
 558
 559     // mgl specific:
 560     m_wnd = NULL;
 561     m_isShown = TRUE;
 562     m_isBeingDeleted = FALSE;
 563     m_isEnabled = TRUE;
 564     m_frozen = FALSE;
 565     m_paintMGLDC = NULL;
 566     m_eraseBackground = -1;
 567 }
 568
 569 // Destructor
 570 wxWindowMGL::~wxWindowMGL()
 571 {
 572     m_isBeingDeleted = TRUE;
 573
 574     if ( gs_mouseCapture == this )
 575         ReleaseMouse();
 576
 577     if (gs_activeFrame == this)
 578     {
 579        gs_activeFrame = NULL;
 580        // activate next frame in Z-order:
 581        if ( m_wnd->prev )
 582        {
 583            wxWindowMGL *win = (wxWindowMGL*)m_wnd->prev->userData;
 584            win->SetFocus();
 585         }
 586     }
 587
 588     if ( gs_focusedWindow == this )
 589         KillFocus();
 590
 591     if ( gs_windowUnderMouse == this )
 592         gs_windowUnderMouse = NULL;
 593
 594     // VS: destroy children first and _then_ detach *this from its parent.
 595     //     If we'd do it the other way around, children wouldn't be able
 596     //     find their parent frame (see above).
 597     DestroyChildren();
 598
 599     if ( m_parent )
 600         m_parent->RemoveChild(this);
 601
 602     if ( m_wnd )
 603         MGL_wmDestroyWindow(m_wnd);
 604 }
 605
 606 // real construction (Init() must have been called before!)
 607 bool wxWindowMGL::Create(wxWindow *parent,
 608                          wxWindowID id,
 609                          const wxPoint& pos,
 610                          const wxSize& size,
 611                          long style,
 612                          const wxString& name)
 613 {
 614     if ( !CreateBase(parent, id, pos, size, style, wxDefaultValidator, name) )
 615         return FALSE;
 616
 617     if ( parent )
 618         parent->AddChild(this);
 619
 620     int x, y, w, h;
 621     x = pos.x, y = pos.y;
 622     if ( x == -1 )
 623         x = 0; // FIXME_MGL, something better, see GTK+
 624     if ( y == -1 )
 625         y = 0; // FIXME_MGL, something better, see GTK+
 626     AdjustForParentClientOrigin(x, y, 0);
 627     w = WidthDefault(size.x);
 628     h = HeightDefault(size.y);
 629
 630     long mgl_style = 0;
 631     window_t *wnd_parent = parent ? parent->GetHandle() : NULL;
 632
 633     if ( !(style & wxNO_FULL_REPAINT_ON_RESIZE) )
 634     {
 635         mgl_style |= MGL_WM_FULL_REPAINT_ON_RESIZE;
 636     }
 637     if ( style & wxSTAY_ON_TOP )
 638     {
 639         mgl_style |= MGL_WM_ALWAYS_ON_TOP;
 640     }
 641     if ( style & wxPOPUP_WINDOW )
 642     {
 643         mgl_style |= MGL_WM_ALWAYS_ON_TOP;
 644         // it is created hidden as other top level windows
 645         m_isShown = FALSE;
 646         wnd_parent = NULL;
 647     }
 648
 649     window_t *wnd = MGL_wmCreateWindow(g_winMng, wnd_parent, x, y, w, h);
 650
 651     MGL_wmSetWindowFlags(wnd, mgl_style);
 652     MGL_wmShowWindow(wnd, m_isShown);
 653
 654     SetMGLwindow_t(wnd);
 655
 656     return TRUE;
 657 }
 658
 659 void wxWindowMGL::SetMGLwindow_t(struct window_t *wnd)
 660 {
 661     if ( m_wnd )
 662         MGL_wmDestroyWindow(m_wnd);
 663
 664     m_wnd = wnd;
 665     if ( !m_wnd ) return;
 666
 667     m_isShown = m_wnd->visible;
 668
 669     MGL_wmSetWindowUserData(m_wnd, (void*) this);
 670     MGL_wmSetWindowPainter(m_wnd, wxWindowPainter);
 671     MGL_wmPushWindowEventHandler(m_wnd, wxWindowMouseHandler, EVT_MOUSEEVT, 0);
 672     MGL_wmPushWindowEventHandler(m_wnd, wxWindowKeybHandler, EVT_KEYEVT, 0);
 673
 674     if ( m_cursor.Ok() )
 675         MGL_wmSetWindowCursor(m_wnd, *m_cursor.GetMGLCursor());
 676     else
 677         MGL_wmSetWindowCursor(m_wnd, *wxSTANDARD_CURSOR->GetMGLCursor());
 678 }
 679
 680 // ---------------------------------------------------------------------------
 681 // basic operations
 682 // ---------------------------------------------------------------------------
 683
 684 void wxWindowMGL::SetFocus()
 685 {
 686     if ( gs_focusedWindow == this ) return;
 687
 688     wxWindowMGL *oldFocusedWindow = gs_focusedWindow;
 689
 690     if ( gs_focusedWindow )
 691     {
 692         gs_toBeFocusedWindow = (wxWindow*)this;
 693         gs_focusedWindow->KillFocus();
 694         gs_toBeFocusedWindow = NULL;
 695     }
 696
 697     gs_focusedWindow = this;
 698
 699     MGL_wmCaptureEvents(GetHandle(), EVT_KEYEVT, wxMGL_CAPTURE_KEYB);
 700
 701     wxWindowMGL *active = wxGetTopLevelParent(this);
 702     if ( !(m_windowStyle & wxPOPUP_WINDOW) && active != gs_activeFrame )
 703     {
 704         if ( gs_activeFrame )
 705         {
 706             wxActivateEvent event(wxEVT_ACTIVATE, FALSE, gs_activeFrame->GetId());
 707             event.SetEventObject(gs_activeFrame);
 708             gs_activeFrame->GetEventHandler()->ProcessEvent(event);
 709         }
 710
 711         gs_activeFrame = active;
 712         wxActivateEvent event(wxEVT_ACTIVATE, TRUE, gs_activeFrame->GetId());
 713         event.SetEventObject(gs_activeFrame);
 714         gs_activeFrame->GetEventHandler()->ProcessEvent(event);
 715     }
 716
 717     wxFocusEvent event(wxEVT_SET_FOCUS, GetId());
 718     event.SetEventObject(this);
 719     event.SetWindow((wxWindow*)oldFocusedWindow);
 720     GetEventHandler()->ProcessEvent(event);
 721
 722 #if wxUSE_CARET
 723     // caret needs to be informed about focus change
 724     wxCaret *caret = GetCaret();
 725     if ( caret )
 726         caret->OnSetFocus();
 727 #endif // wxUSE_CARET
 728 }
 729
 730 void wxWindowMGL::KillFocus()
 731 {
 732     if ( gs_focusedWindow != this ) return;
 733     gs_focusedWindow = NULL;
 734
 735     if ( m_isBeingDeleted ) return;
 736
 737     MGL_wmUncaptureEvents(GetHandle(), wxMGL_CAPTURE_KEYB);
 738
 739 #if wxUSE_CARET
 740     // caret needs to be informed about focus change
 741     wxCaret *caret = GetCaret();
 742     if ( caret )
 743         caret->OnKillFocus();
 744 #endif // wxUSE_CARET
 745
 746     wxFocusEvent event(wxEVT_KILL_FOCUS, GetId());
 747     event.SetEventObject(this);
 748     event.SetWindow(gs_toBeFocusedWindow);
 749     GetEventHandler()->ProcessEvent(event);
 750 }
 751
 752 // ----------------------------------------------------------------------------
 753 // this wxWindowBase function is implemented here (in platform-specific file)
 754 // because it is static and so couldn't be made virtual
 755 // ----------------------------------------------------------------------------
 756 wxWindow *wxWindowBase::FindFocus()
 757 {
 758     return (wxWindow*)gs_focusedWindow;
 759 }
 760
 761 bool wxWindowMGL::Show(bool show)
 762 {
 763     if ( !wxWindowBase::Show(show) )
 764         return FALSE;
 765
 766     MGL_wmShowWindow(m_wnd, show);
 767
 768     if (!show && gs_activeFrame == this)
 769     {
 770        // activate next frame in Z-order:
 771        if ( m_wnd->prev )
 772        {
 773            wxWindowMGL *win = (wxWindowMGL*)m_wnd->prev->userData;
 774            win->SetFocus();
 775         }
 776     }
 777
 778     return TRUE;
 779 }
 780
 781 // Raise the window to the top of the Z order
 782 void wxWindowMGL::Raise()
 783 {
 784     MGL_wmRaiseWindow(m_wnd);
 785 }
 786
 787 // Lower the window to the bottom of the Z order
 788 void wxWindowMGL::Lower()
 789 {
 790     MGL_wmLowerWindow(m_wnd);
 791 }
 792
 793 void wxWindowMGL::DoCaptureMouse()
 794 {
 795     if ( gs_mouseCapture )
 796         MGL_wmUncaptureEvents(gs_mouseCapture->m_wnd, wxMGL_CAPTURE_MOUSE);
 797
 798     gs_mouseCapture = this;
 799     MGL_wmCaptureEvents(m_wnd, EVT_MOUSEEVT, wxMGL_CAPTURE_MOUSE);
 800 }
 801
 802 void wxWindowMGL::DoReleaseMouse()
 803 {
 804     wxASSERT_MSG( gs_mouseCapture == this, wxT("attempt to release mouse, but this window hasn't captured it") )
 805
 806     MGL_wmUncaptureEvents(m_wnd, wxMGL_CAPTURE_MOUSE);
 807     gs_mouseCapture = NULL;
 808 }
 809
 810 /* static */ wxWindow *wxWindowBase::GetCapture()
 811 {
 812     return (wxWindow*)gs_mouseCapture;
 813 }
 814
 815 bool wxWindowMGL::SetCursor(const wxCursor& cursor)
 816 {
 817     if ( !wxWindowBase::SetCursor(cursor) )
 818     {
 819         // no change
 820         return FALSE;
 821     }
 822
 823     if ( m_cursor.Ok() )
 824         MGL_wmSetWindowCursor(m_wnd, *m_cursor.GetMGLCursor());
 825     else
 826         MGL_wmSetWindowCursor(m_wnd, *wxSTANDARD_CURSOR->GetMGLCursor());
 827
 828     return TRUE;
 829 }
 830
 831 void wxWindowMGL::WarpPointer(int x, int y)
 832 {
 833     ClientToScreen(&x, &y);
 834     EVT_setMousePos(x, y);
 835 }
 836
 837 #if WXWIN_COMPATIBILITY
 838 // If nothing defined for this, try the parent.
 839 // E.g. we may be a button loaded from a resource, with no callback function
 840 // defined.
 841 void wxWindowMGL::OnCommand(wxWindow& win, wxCommandEvent& event)
 842 {
 843     if ( GetEventHandler()->ProcessEvent(event)  )
 844         return;
 845     if ( m_parent )
 846         m_parent->GetEventHandler()->OnCommand(win, event);
 847 }
 848 #endif // WXWIN_COMPATIBILITY_2
 849
 850 #if WXWIN_COMPATIBILITY
 851 wxObject* wxWindowMGL::GetChild(int number) const
 852 {
 853     // Return a pointer to the Nth object in the Panel
 854     wxNode *node = GetChildren().First();
 855     int n = number;
 856     while (node && n--)
 857         node = node->Next();
 858     if ( node )
 859     {
 860         wxObject *obj = (wxObject *)node->Data();
 861         return(obj);
 862     }
 863     else
 864         return NULL;
 865 }
 866 #endif // WXWIN_COMPATIBILITY
 867
 868 // Set this window to be the child of 'parent'.
 869 bool wxWindowMGL::Reparent(wxWindowBase *parent)
 870 {
 871     if ( !wxWindowBase::Reparent(parent) )
 872         return FALSE;
 873
 874     MGL_wmReparentWindow(m_wnd, parent->GetHandle());
 875
 876     return TRUE;
 877 }
 878
 879
 880 // ---------------------------------------------------------------------------
 881 // drag and drop
 882 // ---------------------------------------------------------------------------
 883
 884 #if wxUSE_DRAG_AND_DROP
 885
 886 void wxWindowMGL::SetDropTarget(wxDropTarget *pDropTarget)
 887 {
 888     if ( m_dropTarget != 0 ) {
 889         m_dropTarget->Revoke(m_hWnd);
 890         delete m_dropTarget;
 891     }
 892
 893     m_dropTarget = pDropTarget;
 894     if ( m_dropTarget != 0 )
 895         m_dropTarget->Register(m_hWnd);
 896 }
 897 // FIXME_MGL
 898 #endif // wxUSE_DRAG_AND_DROP
 899
 900 // old style file-manager drag&drop support: we retain the old-style
 901 // DragAcceptFiles in parallel with SetDropTarget.
 902 void wxWindowMGL::DragAcceptFiles(bool accept)
 903 {
 904 #if 0 // FIXME_MGL
 905     HWND hWnd = GetHwnd();
 906     if ( hWnd )
 907         ::DragAcceptFiles(hWnd, (BOOL)accept);
 908 #endif
 909 }
 910
 911 // ---------------------------------------------------------------------------
 912 // moving and resizing
 913 // ---------------------------------------------------------------------------
 914
 915 // Get total size
 916 void wxWindowMGL::DoGetSize(int *x, int *y) const
 917 {
 918     wxASSERT_MSG( m_wnd, wxT("invalid window") );
 919
 920     if (x) *x = m_wnd->width;
 921     if (y) *y = m_wnd->height;
 922 }
 923
 924 void wxWindowMGL::DoGetPosition(int *x, int *y) const
 925 {
 926     wxASSERT_MSG( m_wnd, wxT("invalid window") );
 927
 928     int pX = 0, pY = 0;
 929     AdjustForParentClientOrigin(pX, pY, 0);
 930
 931     if (x) *x = m_wnd->x - pX;
 932     if (y) *y = m_wnd->y - pY;
 933 }
 934
 935 void wxWindowMGL::DoScreenToClient(int *x, int *y) const
 936 {
 937     int ax, ay;
 938     MGL_wmCoordGlobalToLocal(m_wnd, 0, 0, &ax, &ay);
 939     if (x)
 940         (*x) += ax;
 941     if (y)
 942         (*y) += ay;
 943 }
 944
 945 void wxWindowMGL::DoClientToScreen(int *x, int *y) const
 946 {
 947     int ax, ay;
 948     MGL_wmCoordLocalToGlobal(m_wnd, 0, 0, &ax, &ay);
 949     if (x)
 950         (*x) += ax;
 951     if (y)
 952         (*y) += ay;
 953 }
 954
 955 // Get size *available for subwindows* i.e. excluding menu bar etc.
 956 void wxWindowMGL::DoGetClientSize(int *x, int *y) const
 957 {
 958     DoGetSize(x, y);
 959 }
 960
 961 void wxWindowMGL::DoMoveWindow(int x, int y, int width, int height)
 962 {
 963     MGL_wmSetWindowPosition(GetHandle(), x, y, width, height);
 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         wxSizeEvent event(wxSize(width, height), GetId());
1046         event.SetEventObject(this);
1047         GetEventHandler()->ProcessEvent(event);
1048     }
1049 }
1050
1051 void wxWindowMGL::DoSetClientSize(int width, int height)
1052 {
1053     SetSize(width, height);
1054 }
1055
1056 // ---------------------------------------------------------------------------
1057 // text metrics
1058 // ---------------------------------------------------------------------------
1059
1060 int wxWindowMGL::GetCharHeight() const
1061 {
1062     wxScreenDC dc;
1063     dc.SetFont(m_font);
1064     return dc.GetCharHeight();
1065 }
1066
1067 int wxWindowMGL::GetCharWidth() const
1068 {
1069     wxScreenDC dc;
1070     dc.SetFont(m_font);
1071     return dc.GetCharWidth();
1072 }
1073
1074 void wxWindowMGL::GetTextExtent(const wxString& string,
1075                              int *x, int *y,
1076                              int *descent, int *externalLeading,
1077                              const wxFont *theFont) const
1078 {
1079     wxScreenDC dc;
1080     if (!theFont)
1081         theFont = &m_font;
1082     dc.GetTextExtent(string, x, y, descent, externalLeading, (wxFont*)theFont);
1083 }
1084
1085 #if wxUSE_CARET && WXWIN_COMPATIBILITY
1086 // ---------------------------------------------------------------------------
1087 // Caret manipulation
1088 // ---------------------------------------------------------------------------
1089
1090 void wxWindowMGL::CreateCaret(int w, int h)
1091 {
1092     SetCaret(new wxCaret(this, w, h));
1093 }
1094
1095 void wxWindowMGL::CreateCaret(const wxBitmap *WXUNUSED(bitmap))
1096 {
1097     wxFAIL_MSG("not implemented");
1098 }
1099
1100 void wxWindowMGL::ShowCaret(bool show)
1101 {
1102     wxCHECK_RET( m_caret, "no caret to show" );
1103
1104     m_caret->Show(show);
1105 }
1106
1107 void wxWindowMGL::DestroyCaret()
1108 {
1109     SetCaret(NULL);
1110 }
1111
1112 void wxWindowMGL::SetCaretPos(int x, int y)
1113 {
1114     wxCHECK_RET( m_caret, "no caret to move" );
1115
1116     m_caret->Move(x, y);
1117 }
1118
1119 void wxWindowMGL::GetCaretPos(int *x, int *y) const
1120 {
1121     wxCHECK_RET( m_caret, "no caret to get position of" );
1122
1123     m_caret->GetPosition(x, y);
1124 }
1125 #endif // wxUSE_CARET
1126
1127
1128 // ---------------------------------------------------------------------------
1129 // painting
1130 // ---------------------------------------------------------------------------
1131
1132 void wxWindowMGL::Clear()
1133 {
1134     wxClientDC dc((wxWindow *)this);
1135     wxBrush brush(GetBackgroundColour(), wxSOLID);
1136     dc.SetBackground(brush);
1137     dc.Clear();
1138 }
1139
1140 #include "wx/menu.h"
1141 void wxWindowMGL::Refresh(bool eraseBack, const wxRect *rect)
1142 {
1143     if ( m_eraseBackground == -1 )
1144         m_eraseBackground = eraseBack;
1145     else
1146         m_eraseBackground |= eraseBack;
1147
1148     if ( rect )
1149     {
1150         rect_t r;
1151         r.left = rect->GetLeft(), r.right = rect->GetRight();
1152         r.top = rect->GetTop(), r.bottom = rect->GetBottom();
1153         MGL_wmInvalidateWindowRect(GetHandle(), &r);
1154     }
1155     else
1156         MGL_wmInvalidateWindow(GetHandle());
1157 }
1158
1159 void wxWindowMGL::Update()
1160 {
1161     if ( !m_frozen )
1162         MGL_wmUpdateDC(g_winMng);
1163 }
1164
1165 void wxWindowMGL::Freeze()
1166 {
1167     m_frozen = TRUE;
1168     m_refreshAfterThaw = FALSE;
1169 }
1170
1171 void wxWindowMGL::Thaw()
1172 {
1173     m_frozen = FALSE;
1174     if ( m_refreshAfterThaw )
1175         Refresh();
1176 }
1177
1178 void wxWindowMGL::HandlePaint(MGLDevCtx *dc)
1179 {
1180     if ( m_frozen )
1181     {
1182         // Don't paint anything if the window is frozen.
1183         m_refreshAfterThaw = TRUE;
1184         return;
1185     }
1186
1187 #ifdef __WXDEBUG__
1188     // FIXME_MGL -- debugging stuff, to be removed!
1189     static int debugPaintEvents = -1;
1190     if ( debugPaintEvents == -1 )
1191         debugPaintEvents = wxGetEnv(wxT("WXMGL_DEBUG_PAINT_EVENTS"), NULL);
1192     if ( debugPaintEvents )
1193     {
1194         dc->setColorRGB(255,0,255);
1195         dc->fillRect(-1000,-1000,2000,2000);
1196         wxUsleep(50);
1197     }
1198 #endif
1199
1200     MGLRegion clip;
1201     dc->getClipRegion(clip);
1202     m_updateRegion = wxRegion(clip);
1203     m_paintMGLDC = dc;
1204
1205 #if wxUSE_CARET
1206     // must hide caret temporarily, otherwise we'd get rendering artifacts
1207     wxCaret *caret = GetCaret();
1208     if ( caret )
1209         caret->Hide();
1210 #endif // wxUSE_CARET
1211
1212     if ( m_eraseBackground != 0 )
1213     {
1214         wxWindowDC dc((wxWindow*)this);
1215         wxEraseEvent eventEr(m_windowId, &dc);
1216         eventEr.SetEventObject(this);
1217         GetEventHandler()->ProcessEvent(eventEr);
1218     }
1219     m_eraseBackground = -1;
1220
1221     wxNcPaintEvent eventNc(GetId());
1222     eventNc.SetEventObject(this);
1223     GetEventHandler()->ProcessEvent(eventNc);
1224
1225     wxPaintEvent eventPt(GetId());
1226     eventPt.SetEventObject(this);
1227     GetEventHandler()->ProcessEvent(eventPt);
1228
1229 #if wxUSE_CARET
1230     if ( caret )
1231         caret->Show();
1232 #endif // wxUSE_CARET
1233
1234     m_paintMGLDC = NULL;
1235     m_updateRegion.Clear();
1236 }
1237
1238
1239 // Find the wxWindow at the current mouse position, returning the mouse
1240 // position.
1241 wxWindow* wxFindWindowAtPointer(wxPoint& pt)
1242 {
1243     return wxFindWindowAtPoint(pt = wxGetMousePosition());
1244 }
1245
1246 wxWindow* wxFindWindowAtPoint(const wxPoint& pt)
1247 {
1248     window_t *wnd = MGL_wmGetWindowAtPosition(g_winMng, pt.x, pt.y);
1249     return (wxWindow*)wnd->userData;
1250 }
1251
1252
1253 // ---------------------------------------------------------------------------
1254 // idle events processing
1255 // ---------------------------------------------------------------------------
1256
1257 void wxWindowMGL::OnIdle(wxIdleEvent& WXUNUSED(event))
1258 {
1259     UpdateWindowUI();
1260 }