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 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/accel.h"
  33     #include "wx/setup.h"
  34     #include "wx/dc.h"
  35     #include "wx/dcclient.h"
  36     #include "wx/utils.h"
  37     #include "wx/app.h"
  38     #include "wx/panel.h"
  39     #include "wx/caret.h"
  40 #endif
  41
  42 #if wxUSE_DRAG_AND_DROP
  43     #include "wx/dnd.h"
  44 #endif
  45
  46 #include "wx/log.h"
  47 #include "wx/sysopt.h"
  48 #include "wx/mgl/private.h"
  49 #include "wx/intl.h"
  50 #include "wx/dcscreen.h"
  51
  52 #include <mgraph.hpp>
  53
  54 #if wxUSE_TOOLTIPS
  55     #include "wx/tooltip.h"
  56 #endif
  57
  58 // ---------------------------------------------------------------------------
  59 // global variables
  60 // ---------------------------------------------------------------------------
  61
  62 // MGL window manager and associated DC.
  63 winmng_t *g_winMng = NULL;
  64 MGLDevCtx *g_displayDC = NULL;
  65
  66 // the window that has keyboard focus:
  67 static wxWindowMGL *gs_focusedWindow = NULL;
  68 // the window that is currently under mouse cursor:
  69 static wxWindowMGL *gs_windowUnderMouse = NULL;
  70 // the window that has mouse capture
  71 static wxWindowMGL *gs_mouseCapture = NULL;
  72 // the frame that is currently active (i.e. its child has focus). It is
  73 // used to generate wxActivateEvents
  74 static wxWindowMGL *gs_activeFrame = NULL;
  75
  76 // ---------------------------------------------------------------------------
  77 // constants
  78 // ---------------------------------------------------------------------------
  79
  80 // Custom identifiers used to distinguish between various event handlers
  81 // and capture handlers passed to MGL_wm
  82 enum
  83 {
  84     wxMGL_CAPTURE_MOUSE = 1,
  85     wxMGL_CAPTURE_KEYB  = 2
  86 };
  87
  88
  89 // ---------------------------------------------------------------------------
  90 // private functions
  91 // ---------------------------------------------------------------------------
  92
  93 // Returns toplevel grandparent of given window:
  94 static wxWindowMGL* wxGetTopLevelParent(wxWindowMGL *win)
  95 {
  96     wxWindowMGL *p = win;
  97     while (p && !p->IsTopLevel())
  98          p = p->GetParent();
  99     return p;
 100 }
 101
 102 #ifdef __WXDEBUG__
 103 // Add an easy way to capture screenshots:
 104 static void CaptureScreenshot()
 105 {
 106     wxBusyCursor bcur;
 107
 108     static int screenshot_num = 0;
 109     char screenshot[128];
 110     sprintf(screenshot, "screenshot-%03i.png", screenshot_num++);
 111     g_displayDC->savePNGFromDC(screenshot, 0, 0,
 112                                g_displayDC->sizex(),
 113                                g_displayDC->sizey());
 114 }
 115 #endif
 116
 117 // ---------------------------------------------------------------------------
 118 // MGL_WM hooks:
 119 // ---------------------------------------------------------------------------
 120
 121 static void MGLAPI wxWindowPainter(window_t *wnd, MGLDC *dc)
 122 {
 123     wxWindowMGL *w = (wxWindow*) wnd->userData;
 124
 125     if ( w && !(w->GetWindowStyle() & wxTRANSPARENT_WINDOW) )
 126     {
 127         MGLDevCtx ctx(dc);
 128         w->HandlePaint(&ctx);
 129     }
 130 }
 131
 132 static ibool MGLAPI wxWindowMouseHandler(window_t *wnd, event_t *e)
 133 {
 134     wxWindowMGL *win = (wxWindowMGL*)MGL_wmGetWindowUserData(wnd);
 135     wxPoint orig(win->GetClientAreaOrigin());
 136     wxPoint where;
 137
 138     MGL_wmCoordGlobalToLocal(win->GetHandle(),
 139                              e->where_x, e->where_y, &where.x, &where.y);
 140
 141     for (wxWindowMGL *w = win; w; w = w->GetParent())
 142     {
 143         if ( !w->IsEnabled() )
 144             return FALSE;
 145         if ( w->IsTopLevel() )
 146             break;
 147     }
 148
 149     wxEventType type = wxEVT_NULL;
 150     wxMouseEvent event;
 151     event.SetEventObject(win);
 152     event.SetTimestamp(e->when);
 153     event.m_x = where.x - orig.x;
 154     event.m_y = where.y - orig.y;
 155     event.m_shiftDown = e->modifiers & EVT_SHIFTKEY;
 156     event.m_controlDown = e->modifiers & EVT_CTRLSTATE;
 157     event.m_altDown = e->modifiers & EVT_LEFTALT;
 158     event.m_metaDown = e->modifiers & EVT_RIGHTALT;
 159     event.m_leftDown = e->modifiers & EVT_LEFTBUT;
 160     event.m_middleDown = e->modifiers & EVT_MIDDLEBUT;
 161     event.m_rightDown = e->modifiers & EVT_RIGHTBUT;
 162
 163     switch (e->what)
 164     {
 165         case EVT_MOUSEDOWN:
 166             if ( e->message & EVT_LEFTBMASK )
 167                 type = (e->message & EVT_DBLCLICK) ?
 168                         wxEVT_LEFT_DCLICK : wxEVT_LEFT_DOWN;
 169             else if ( e->message & EVT_MIDDLEBMASK )
 170                 type = (e->message & EVT_DBLCLICK) ?
 171                         wxEVT_MIDDLE_DCLICK : wxEVT_MIDDLE_DOWN;
 172             else if ( e->message & EVT_RIGHTBMASK )
 173                 type = (e->message & EVT_DBLCLICK) ?
 174                         wxEVT_RIGHT_DCLICK : wxEVT_RIGHT_DOWN;
 175
 176             if ( win->AcceptsFocus() && wxWindow::FindFocus() != win )
 177                 win->SetFocus();
 178
 179             break;
 180
 181         case EVT_MOUSEUP:
 182             if ( e->message & EVT_LEFTBMASK )
 183                 type = wxEVT_LEFT_UP;
 184             else if ( e->message & EVT_MIDDLEBMASK )
 185                 type = wxEVT_MIDDLE_UP;
 186             else if ( e->message & EVT_RIGHTBMASK )
 187                 type = wxEVT_RIGHT_UP;
 188             break;
 189
 190         case EVT_MOUSEMOVE:
 191             if ( !gs_mouseCapture )
 192             {
 193                 if ( win != gs_windowUnderMouse )
 194                 {
 195                     if ( gs_windowUnderMouse )
 196                     {
 197                         wxMouseEvent event2(event);
 198                         MGL_wmCoordGlobalToLocal(gs_windowUnderMouse->GetHandle(),
 199                                                  e->where_x, e->where_y,
 200                                                  &event2.m_x, &event2.m_y);
 201
 202                         wxPoint orig(gs_windowUnderMouse->GetClientAreaOrigin());
 203                         event2.m_x -= orig.x;
 204                         event2.m_y -= orig.y;
 205
 206                         event2.SetEventObject(gs_windowUnderMouse);
 207                         event2.SetEventType(wxEVT_LEAVE_WINDOW);
 208                         gs_windowUnderMouse->GetEventHandler()->ProcessEvent(event2);
 209                     }
 210
 211                     wxMouseEvent event3(event);
 212                     event3.SetEventType(wxEVT_ENTER_WINDOW);
 213                     win->GetEventHandler()->ProcessEvent(event3);
 214
 215                     gs_windowUnderMouse = win;
 216                 }
 217             }
 218             else // gs_mouseCapture
 219             {
 220                 bool inside = (where.x >= 0 &&
 221                                where.y >= 0 &&
 222                                where.x < win->GetSize().x &&
 223                                where.y < win->GetSize().y);
 224                 if ( (inside && gs_windowUnderMouse != win) ||
 225                      (!inside && gs_windowUnderMouse == win) )
 226                 {
 227                     wxMouseEvent evt(inside ?
 228                                      wxEVT_ENTER_WINDOW : wxEVT_LEAVE_WINDOW);
 229                     evt.SetEventObject(win);
 230                     win->GetEventHandler()->ProcessEvent(evt);
 231                     gs_windowUnderMouse = inside ? win : NULL;
 232                 }
 233             }
 234
 235             type = wxEVT_MOTION;
 236             break;
 237
 238         default:
 239             break;
 240     }
 241
 242     if ( type == wxEVT_NULL )
 243     {
 244         return FALSE;
 245     }
 246     else
 247     {
 248         event.SetEventType(type);
 249         return win->GetEventHandler()->ProcessEvent(event);
 250     }
 251 }
 252
 253 static long wxScanToKeyCode(event_t *event, bool translate)
 254 {
 255     // VS: make it __WXDEBUG__-only, since we have lots of wxLogTrace calls
 256     //     here and the arguments would be stored in non-debug executable even
 257     //     though wxLogTrace would be no-op...
 258     #ifdef __WXDEBUG__
 259       #define KEY(mgl_key,wx_key) \
 260         case mgl_key: \
 261           wxLogTrace(_T("keyevents"), \
 262                      _T("key " #mgl_key ", mapped to " #wx_key)); \
 263           key = wx_key; \
 264           break;
 265     #else
 266       #define KEY(mgl_key,wx_key) \
 267         case mgl_key: key = wx_key; break;
 268     #endif
 269
 270     long key = 0;
 271
 272     if ( translate )
 273     {
 274         switch ( EVT_scanCode(event->message) )
 275         {
 276             KEY (KB_padMinus,       WXK_NUMPAD_SUBTRACT)
 277             KEY (KB_padPlus,        WXK_NUMPAD_ADD)
 278             KEY (KB_padTimes,       WXK_NUMPAD_MULTIPLY)
 279             KEY (KB_padDivide,      WXK_NUMPAD_DIVIDE)
 280             KEY (KB_padCenter,      WXK_NUMPAD_SEPARATOR) // ?
 281             KEY (KB_padLeft,        WXK_NUMPAD_LEFT)
 282             KEY (KB_padRight,       WXK_NUMPAD_RIGHT)
 283             KEY (KB_padUp,          WXK_NUMPAD_UP)
 284             KEY (KB_padDown,        WXK_NUMPAD_DOWN)
 285             KEY (KB_padInsert,      WXK_NUMPAD_INSERT)
 286             KEY (KB_padDelete,      WXK_NUMPAD_DELETE)
 287             KEY (KB_padHome,        WXK_NUMPAD_HOME)
 288             KEY (KB_padEnd,         WXK_NUMPAD_END)
 289             KEY (KB_padPageUp,      WXK_NUMPAD_PAGEUP)
 290           //KEY (KB_padPageUp,      WXK_NUMPAD_PRIOR)
 291             KEY (KB_padPageDown,    WXK_NUMPAD_PAGEDOWN)
 292           //KEY (KB_padPageDown,    WXK_NUMPAD_NEXT)
 293             KEY (KB_1,              '1')
 294             KEY (KB_2,              '2')
 295             KEY (KB_3,              '3')
 296             KEY (KB_4,              '4')
 297             KEY (KB_5,              '5')
 298             KEY (KB_6,              '6')
 299             KEY (KB_7,              '7')
 300             KEY (KB_8,              '8')
 301             KEY (KB_9,              '9')
 302             KEY (KB_0,              '0')
 303             KEY (KB_minus,          WXK_SUBTRACT)
 304             KEY (KB_equals,         WXK_ADD)
 305             KEY (KB_backSlash,      '\\')
 306             KEY (KB_Q,              'Q')
 307             KEY (KB_W,              'W')
 308             KEY (KB_E,              'E')
 309             KEY (KB_R,              'R')
 310             KEY (KB_T,              'T')
 311             KEY (KB_Y,              'Y')
 312             KEY (KB_U,              'U')
 313             KEY (KB_I,              'I')
 314             KEY (KB_O,              'O')
 315             KEY (KB_P,              'P')
 316             KEY (KB_leftSquareBrace,'[')
 317             KEY (KB_rightSquareBrace,']')
 318             KEY (KB_A,              'A')
 319             KEY (KB_S,              'S')
 320             KEY (KB_D,              'D')
 321             KEY (KB_F,              'F')
 322             KEY (KB_G,              'G')
 323             KEY (KB_H,              'H')
 324             KEY (KB_J,              'J')
 325             KEY (KB_K,              'K')
 326             KEY (KB_L,              'L')
 327             KEY (KB_semicolon,      ';')
 328             KEY (KB_apostrophe,     '\'')
 329             KEY (KB_Z,              'Z')
 330             KEY (KB_X,              'X')
 331             KEY (KB_C,              'C')
 332             KEY (KB_V,              'V')
 333             KEY (KB_B,              'B')
 334             KEY (KB_N,              'N')
 335             KEY (KB_M,              'M')
 336             KEY (KB_comma,          ',')
 337             KEY (KB_period,         '.')
 338             KEY (KB_divide,         WXK_DIVIDE)
 339             KEY (KB_space,          WXK_SPACE)
 340             KEY (KB_tilde,          '~')
 341
 342             default: break;
 343         }
 344     }
 345
 346     if ( key == 0 )
 347     {
 348         switch ( EVT_scanCode(event->message) )
 349         {
 350             KEY (KB_padEnter,       WXK_NUMPAD_ENTER)
 351             KEY (KB_F1,             WXK_F1)
 352             KEY (KB_F2,             WXK_F2)
 353             KEY (KB_F3,             WXK_F3)
 354             KEY (KB_F4,             WXK_F4)
 355             KEY (KB_F5,             WXK_F5)
 356             KEY (KB_F6,             WXK_F6)
 357             KEY (KB_F7,             WXK_F7)
 358             KEY (KB_F8,             WXK_F8)
 359             KEY (KB_F9,             WXK_F9)
 360             KEY (KB_F10,            WXK_F10)
 361             KEY (KB_F11,            WXK_F11)
 362             KEY (KB_F12,            WXK_F12)
 363             KEY (KB_left,           WXK_LEFT)
 364             KEY (KB_right,          WXK_RIGHT)
 365             KEY (KB_up,             WXK_UP)
 366             KEY (KB_down,           WXK_DOWN)
 367             KEY (KB_insert,         WXK_INSERT)
 368             KEY (KB_delete,         WXK_DELETE)
 369             KEY (KB_home,           WXK_HOME)
 370             KEY (KB_end,            WXK_END)
 371             KEY (KB_pageUp,         WXK_PAGEUP)
 372             KEY (KB_pageDown,       WXK_PAGEDOWN)
 373             KEY (KB_capsLock,       WXK_CAPITAL)
 374             KEY (KB_numLock,        WXK_NUMLOCK)
 375             KEY (KB_scrollLock,     WXK_SCROLL)
 376             KEY (KB_leftShift,      WXK_SHIFT)
 377             KEY (KB_rightShift,     WXK_SHIFT)
 378             KEY (KB_leftCtrl,       WXK_CONTROL)
 379             KEY (KB_rightCtrl,      WXK_CONTROL)
 380             KEY (KB_leftAlt,        WXK_ALT)
 381             KEY (KB_rightAlt,       WXK_ALT)
 382             KEY (KB_leftWindows,    WXK_START)
 383             KEY (KB_rightWindows,   WXK_START)
 384             KEY (KB_menu,           WXK_MENU)
 385             KEY (KB_sysReq,         WXK_SNAPSHOT)
 386             KEY (KB_esc,            WXK_ESCAPE)
 387             KEY (KB_backspace,      WXK_BACK)
 388             KEY (KB_tab,            WXK_TAB)
 389             KEY (KB_enter,          WXK_RETURN)
 390
 391             default:
 392                 key = EVT_asciiCode(event->message);
 393                 break;
 394         }
 395     }
 396
 397     #undef KEY
 398
 399     return key;
 400 }
 401
 402 static ibool MGLAPI wxWindowKeybHandler(window_t *wnd, event_t *e)
 403 {
 404     wxWindowMGL *win = (wxWindowMGL*)MGL_wmGetWindowUserData(wnd);
 405
 406     if ( !win->IsEnabled() ) return FALSE;
 407
 408     wxPoint where;
 409     MGL_wmCoordGlobalToLocal(win->GetHandle(),
 410                              e->where_x, e->where_y, &where.x, &where.y);
 411
 412     wxKeyEvent event;
 413     event.SetEventObject(win);
 414     event.SetTimestamp(e->when);
 415     event.m_keyCode = wxScanToKeyCode(e, TRUE);
 416     event.m_scanCode = 0; // not used by wx at all
 417     event.m_x = where.x;
 418     event.m_y = where.y;
 419     event.m_shiftDown = e->modifiers & EVT_SHIFTKEY;
 420     event.m_controlDown = e->modifiers & EVT_CTRLSTATE;
 421     event.m_altDown = e->modifiers & EVT_LEFTALT;
 422     event.m_metaDown = e->modifiers & EVT_RIGHTALT;
 423
 424     if ( e->what == EVT_KEYUP )
 425     {
 426         event.SetEventType(wxEVT_KEY_UP);
 427         return win->GetEventHandler()->ProcessEvent(event);
 428     }
 429     else
 430     {
 431         bool ret;
 432         wxKeyEvent event2;
 433
 434         event.SetEventType(wxEVT_KEY_DOWN);
 435         event2 = event;
 436
 437         ret = win->GetEventHandler()->ProcessEvent(event);
 438
 439
 440 #ifdef __WXDEBUG__
 441         // Add an easy way to capture screenshots:
 442         if ( event.m_keyCode == WXK_F1 &&
 443              event.m_shiftDown && event.m_controlDown )
 444             CaptureScreenshot();
 445 #endif
 446
 447 #if wxUSE_ACCEL
 448         if ( !ret )
 449         {
 450             for (wxWindowMGL *w = win; w; w = w->GetParent())
 451             {
 452                 int command = w->GetAcceleratorTable()->GetCommand(event);
 453                 if ( command != -1 )
 454                 {
 455                     wxCommandEvent eventc(wxEVT_COMMAND_MENU_SELECTED, command);
 456                     ret = w->GetEventHandler()->ProcessEvent(eventc);
 457                     break;
 458                 }
 459                 if ( w->IsTopLevel() )
 460                     break;
 461             }
 462         }
 463 #endif // wxUSE_ACCEL
 464
 465         // wxMSW doesn't send char events with Alt pressed
 466         // Only send wxEVT_CHAR event if not processed yet. Thus, ALT-x
 467         // will only be sent if it is not in an accelerator table.
 468         event2.m_keyCode = wxScanToKeyCode(e, FALSE);
 469         if ( !ret && event2.m_keyCode != 0 )
 470         {
 471             event2.SetEventType(wxEVT_CHAR);
 472             ret = win->GetEventHandler()->ProcessEvent(event2);
 473         }
 474
 475         // Synthetize navigation key event, but do it only if the TAB key
 476         // wasn't handled yet.
 477         if ( !ret && event.m_keyCode == WXK_TAB &&
 478              win->GetParent() && win->GetParent()->HasFlag(wxTAB_TRAVERSAL) )
 479         {
 480             wxNavigationKeyEvent navEvent;
 481             navEvent.SetEventObject(win->GetParent());
 482             // Shift-TAB goes in reverse direction:
 483             navEvent.SetDirection(!event.m_shiftDown);
 484             // Ctrl-TAB changes the (parent) window, i.e. switch notebook page:
 485             navEvent.SetWindowChange(event.m_controlDown);
 486             navEvent.SetCurrentFocus(wxStaticCast(win, wxWindow));
 487             ret = win->GetParent()->GetEventHandler()->ProcessEvent(navEvent);
 488         }
 489
 490         return ret;
 491     }
 492 }
 493
 494 // ---------------------------------------------------------------------------
 495 // event tables
 496 // ---------------------------------------------------------------------------
 497
 498 // in wxUniv this class is abstract because it doesn't have DoPopupMenu()
 499 IMPLEMENT_ABSTRACT_CLASS(wxWindowMGL, wxWindowBase)
 500
 501 BEGIN_EVENT_TABLE(wxWindowMGL, wxWindowBase)
 502 END_EVENT_TABLE()
 503
 504 // ===========================================================================
 505 // implementation
 506 // ===========================================================================
 507
 508 // ----------------------------------------------------------------------------
 509 // constructors and such
 510 // ----------------------------------------------------------------------------
 511
 512 extern wxDisplayModeInfo wxGetDefaultDisplayMode();
 513
 514 void wxWindowMGL::Init()
 515 {
 516     // First of all, make sure window manager is up and running. If it is
 517     // not the case, initialize it in default display mode
 518     if ( !g_winMng )
 519     {
 520         if ( !wxTheApp->SetDisplayMode(wxGetDefaultDisplayMode()) )
 521             wxFatalError(_("Cannot initialize display."));
 522     }
 523
 524     // generic:
 525     InitBase();
 526
 527     // mgl specific:
 528     m_wnd = NULL;
 529     m_isShown = TRUE;
 530     m_isBeingDeleted = FALSE;
 531     m_isEnabled = TRUE;
 532     m_frozen = FALSE;
 533     m_paintMGLDC = NULL;
 534     m_eraseBackground = -1;
 535 }
 536
 537 // Destructor
 538 wxWindowMGL::~wxWindowMGL()
 539 {
 540     m_isBeingDeleted = TRUE;
 541
 542     if ( gs_mouseCapture == this )
 543         ReleaseMouse();
 544
 545     if (gs_activeFrame == this)
 546     {
 547        gs_activeFrame = NULL;
 548        // activate next frame in Z-order:
 549        if ( m_wnd->prev )
 550        {
 551            wxWindowMGL *win = (wxWindowMGL*)m_wnd->prev->userData;
 552            win->SetFocus();
 553         }
 554     }
 555
 556     if ( gs_focusedWindow == this )
 557         KillFocus();
 558
 559     if ( gs_windowUnderMouse == this )
 560         gs_windowUnderMouse = NULL;
 561
 562     // VS: destroy children first and _then_ detach *this from its parent.
 563     //     If we'd do it the other way around, children wouldn't be able
 564     //     find their parent frame (see above).
 565     DestroyChildren();
 566
 567     if ( m_parent )
 568         m_parent->RemoveChild(this);
 569
 570     if ( m_wnd )
 571         MGL_wmDestroyWindow(m_wnd);
 572 }
 573
 574 // real construction (Init() must have been called before!)
 575 bool wxWindowMGL::Create(wxWindow *parent,
 576                          wxWindowID id,
 577                          const wxPoint& pos,
 578                          const wxSize& size,
 579                          long style,
 580                          const wxString& name)
 581 {
 582     if ( !CreateBase(parent, id, pos, size, style, wxDefaultValidator, name) )
 583         return FALSE;
 584
 585     if ( parent )
 586         parent->AddChild(this);
 587
 588     int x, y, w, h;
 589     x = pos.x, y = pos.y;
 590     if ( x == -1 )
 591         x = 0; // FIXME_MGL, something better, see GTK+
 592     if ( y == -1 )
 593         y = 0; // FIXME_MGL, something better, see GTK+
 594     AdjustForParentClientOrigin(x, y, 0);
 595     w = WidthDefault(size.x);
 596     h = HeightDefault(size.y);
 597
 598     long mgl_style = 0;
 599     window_t *wnd_parent = parent ? parent->GetHandle() : NULL;
 600
 601     if ( !(style & wxNO_FULL_REPAINT_ON_RESIZE) )
 602     {
 603         mgl_style |= MGL_WM_FULL_REPAINT_ON_RESIZE;
 604     }
 605     if ( style & wxSTAY_ON_TOP )
 606     {
 607         mgl_style |= MGL_WM_ALWAYS_ON_TOP;
 608     }
 609     if ( style & wxPOPUP_WINDOW )
 610     {
 611         mgl_style |= MGL_WM_ALWAYS_ON_TOP;
 612         // it is created hidden as other top level windows
 613         m_isShown = FALSE;
 614         wnd_parent = NULL;
 615     }
 616
 617     window_t *wnd = MGL_wmCreateWindow(g_winMng, wnd_parent, x, y, w, h);
 618
 619     MGL_wmSetWindowFlags(wnd, mgl_style);
 620     MGL_wmShowWindow(wnd, m_isShown);
 621
 622     SetMGLwindow_t(wnd);
 623
 624     return TRUE;
 625 }
 626
 627 void wxWindowMGL::SetMGLwindow_t(struct window_t *wnd)
 628 {
 629     if ( m_wnd )
 630         MGL_wmDestroyWindow(m_wnd);
 631
 632     m_wnd = wnd;
 633     if ( !m_wnd ) return;
 634
 635     m_isShown = m_wnd->visible;
 636
 637     MGL_wmSetWindowUserData(m_wnd, (void*) this);
 638     MGL_wmSetWindowPainter(m_wnd, wxWindowPainter);
 639     MGL_wmPushWindowEventHandler(m_wnd, wxWindowMouseHandler, EVT_MOUSEEVT, 0);
 640     MGL_wmPushWindowEventHandler(m_wnd, wxWindowKeybHandler, EVT_KEYEVT, 0);
 641
 642     if ( m_cursor.Ok() )
 643         MGL_wmSetWindowCursor(m_wnd, *m_cursor.GetMGLCursor());
 644     else
 645         MGL_wmSetWindowCursor(m_wnd, *wxSTANDARD_CURSOR->GetMGLCursor());
 646 }
 647
 648 // ---------------------------------------------------------------------------
 649 // basic operations
 650 // ---------------------------------------------------------------------------
 651
 652 void wxWindowMGL::SetFocus()
 653 {
 654     if ( gs_focusedWindow == this ) return;
 655
 656     if ( gs_focusedWindow )
 657         gs_focusedWindow->KillFocus();
 658
 659     gs_focusedWindow = this;
 660
 661     MGL_wmCaptureEvents(GetHandle(), EVT_KEYEVT, wxMGL_CAPTURE_KEYB);
 662
 663     wxWindowMGL *active = wxGetTopLevelParent(this);
 664     if ( !(m_windowStyle & wxPOPUP_WINDOW) && active != gs_activeFrame )
 665     {
 666         if ( gs_activeFrame )
 667         {
 668             wxActivateEvent event(wxEVT_ACTIVATE, FALSE, gs_activeFrame->GetId());
 669             event.SetEventObject(gs_activeFrame);
 670             gs_activeFrame->GetEventHandler()->ProcessEvent(event);
 671         }
 672
 673         gs_activeFrame = active;
 674         wxActivateEvent event(wxEVT_ACTIVATE, TRUE, gs_activeFrame->GetId());
 675         event.SetEventObject(gs_activeFrame);
 676         gs_activeFrame->GetEventHandler()->ProcessEvent(event);
 677     }
 678
 679     wxFocusEvent event(wxEVT_SET_FOCUS, GetId());
 680     event.SetEventObject(this);
 681     GetEventHandler()->ProcessEvent(event);
 682
 683 #if wxUSE_CARET
 684     // caret needs to be informed about focus change
 685     wxCaret *caret = GetCaret();
 686     if ( caret )
 687         caret->OnSetFocus();
 688 #endif // wxUSE_CARET
 689 }
 690
 691 void wxWindowMGL::KillFocus()
 692 {
 693     if ( gs_focusedWindow != this ) return;
 694     gs_focusedWindow = NULL;
 695
 696     if ( m_isBeingDeleted ) return;
 697
 698     MGL_wmUncaptureEvents(GetHandle(), wxMGL_CAPTURE_KEYB);
 699
 700 #if wxUSE_CARET
 701     // caret needs to be informed about focus change
 702     wxCaret *caret = GetCaret();
 703     if ( caret )
 704         caret->OnKillFocus();
 705 #endif // wxUSE_CARET
 706
 707     wxFocusEvent event(wxEVT_KILL_FOCUS, GetId());
 708     event.SetEventObject(this);
 709     GetEventHandler()->ProcessEvent(event);
 710 }
 711
 712 // ----------------------------------------------------------------------------
 713 // this wxWindowBase function is implemented here (in platform-specific file)
 714 // because it is static and so couldn't be made virtual
 715 // ----------------------------------------------------------------------------
 716 wxWindow *wxWindowBase::FindFocus()
 717 {
 718     return (wxWindow*)gs_focusedWindow;
 719 }
 720
 721 bool wxWindowMGL::Show(bool show)
 722 {
 723     if ( !wxWindowBase::Show(show) )
 724         return FALSE;
 725
 726     MGL_wmShowWindow(m_wnd, show);
 727
 728     if (!show && gs_activeFrame == this)
 729     {
 730        // activate next frame in Z-order:
 731        if ( m_wnd->prev )
 732        {
 733            wxWindowMGL *win = (wxWindowMGL*)m_wnd->prev->userData;
 734            win->SetFocus();
 735         }
 736     }
 737
 738     return TRUE;
 739 }
 740
 741 // Raise the window to the top of the Z order
 742 void wxWindowMGL::Raise()
 743 {
 744     MGL_wmRaiseWindow(m_wnd);
 745 }
 746
 747 // Lower the window to the bottom of the Z order
 748 void wxWindowMGL::Lower()
 749 {
 750     MGL_wmLowerWindow(m_wnd);
 751 }
 752
 753 void wxWindowMGL::DoCaptureMouse()
 754 {
 755     if ( gs_mouseCapture )
 756         MGL_wmUncaptureEvents(gs_mouseCapture->m_wnd, wxMGL_CAPTURE_MOUSE);
 757
 758     gs_mouseCapture = this;
 759     MGL_wmCaptureEvents(m_wnd, EVT_MOUSEEVT, wxMGL_CAPTURE_MOUSE);
 760 }
 761
 762 void wxWindowMGL::DoReleaseMouse()
 763 {
 764     wxASSERT_MSG( gs_mouseCapture == this, wxT("attempt to release mouse, but this window hasn't captured it") )
 765
 766     MGL_wmUncaptureEvents(m_wnd, wxMGL_CAPTURE_MOUSE);
 767     gs_mouseCapture = NULL;
 768 }
 769
 770 /* static */ wxWindow *wxWindowBase::GetCapture()
 771 {
 772     return (wxWindow*)gs_mouseCapture;
 773 }
 774
 775 bool wxWindowMGL::SetCursor(const wxCursor& cursor)
 776 {
 777     if ( !wxWindowBase::SetCursor(cursor) )
 778     {
 779         // no change
 780         return FALSE;
 781     }
 782
 783     if ( m_cursor.Ok() )
 784         MGL_wmSetWindowCursor(m_wnd, *m_cursor.GetMGLCursor());
 785     else
 786         MGL_wmSetWindowCursor(m_wnd, *wxSTANDARD_CURSOR->GetMGLCursor());
 787
 788     return TRUE;
 789 }
 790
 791 void wxWindowMGL::WarpPointer(int x, int y)
 792 {
 793     ClientToScreen(&x, &y);
 794     EVT_setMousePos(x, y);
 795 }
 796
 797 #if WXWIN_COMPATIBILITY
 798 // If nothing defined for this, try the parent.
 799 // E.g. we may be a button loaded from a resource, with no callback function
 800 // defined.
 801 void wxWindowMGL::OnCommand(wxWindow& win, wxCommandEvent& event)
 802 {
 803     if ( GetEventHandler()->ProcessEvent(event)  )
 804         return;
 805     if ( m_parent )
 806         m_parent->GetEventHandler()->OnCommand(win, event);
 807 }
 808 #endif // WXWIN_COMPATIBILITY_2
 809
 810 #if WXWIN_COMPATIBILITY
 811 wxObject* wxWindowMGL::GetChild(int number) const
 812 {
 813     // Return a pointer to the Nth object in the Panel
 814     wxNode *node = GetChildren().First();
 815     int n = number;
 816     while (node && n--)
 817         node = node->Next();
 818     if ( node )
 819     {
 820         wxObject *obj = (wxObject *)node->Data();
 821         return(obj);
 822     }
 823     else
 824         return NULL;
 825 }
 826 #endif // WXWIN_COMPATIBILITY
 827
 828 // Set this window to be the child of 'parent'.
 829 bool wxWindowMGL::Reparent(wxWindowBase *parent)
 830 {
 831     if ( !wxWindowBase::Reparent(parent) )
 832         return FALSE;
 833
 834     MGL_wmReparentWindow(m_wnd, parent->GetHandle());
 835
 836     return TRUE;
 837 }
 838
 839
 840 // ---------------------------------------------------------------------------
 841 // drag and drop
 842 // ---------------------------------------------------------------------------
 843
 844 #if wxUSE_DRAG_AND_DROP
 845
 846 void wxWindowMGL::SetDropTarget(wxDropTarget *pDropTarget)
 847 {
 848     if ( m_dropTarget != 0 ) {
 849         m_dropTarget->Revoke(m_hWnd);
 850         delete m_dropTarget;
 851     }
 852
 853     m_dropTarget = pDropTarget;
 854     if ( m_dropTarget != 0 )
 855         m_dropTarget->Register(m_hWnd);
 856 }
 857 // FIXME_MGL
 858 #endif // wxUSE_DRAG_AND_DROP
 859
 860 // old style file-manager drag&drop support: we retain the old-style
 861 // DragAcceptFiles in parallel with SetDropTarget.
 862 void wxWindowMGL::DragAcceptFiles(bool accept)
 863 {
 864 #if 0 // FIXME_MGL
 865     HWND hWnd = GetHwnd();
 866     if ( hWnd )
 867         ::DragAcceptFiles(hWnd, (BOOL)accept);
 868 #endif
 869 }
 870
 871 // ---------------------------------------------------------------------------
 872 // moving and resizing
 873 // ---------------------------------------------------------------------------
 874
 875 // Get total size
 876 void wxWindowMGL::DoGetSize(int *x, int *y) const
 877 {
 878     wxASSERT_MSG( m_wnd, wxT("invalid window") )
 879
 880     if (x) *x = m_wnd->width;
 881     if (y) *y = m_wnd->height;
 882 }
 883
 884 void wxWindowMGL::DoGetPosition(int *x, int *y) const
 885 {
 886     wxASSERT_MSG( m_wnd, wxT("invalid window") )
 887
 888     if (x) *x = m_wnd->x;
 889     if (y) *y = m_wnd->y;
 890 }
 891
 892 void wxWindowMGL::DoScreenToClient(int *x, int *y) const
 893 {
 894     int ax, ay;
 895     MGL_wmCoordGlobalToLocal(m_wnd, 0, 0, &ax, &ay);
 896     if (x)
 897         (*x) += ax;
 898     if (y)
 899         (*y) += ay;
 900 }
 901
 902 void wxWindowMGL::DoClientToScreen(int *x, int *y) const
 903 {
 904     int ax, ay;
 905     MGL_wmCoordLocalToGlobal(m_wnd, 0, 0, &ax, &ay);
 906     if (x)
 907         (*x) += ax;
 908     if (y)
 909         (*y) += ay;
 910 }
 911
 912 // Get size *available for subwindows* i.e. excluding menu bar etc.
 913 void wxWindowMGL::DoGetClientSize(int *x, int *y) const
 914 {
 915     DoGetSize(x, y);
 916 }
 917
 918 void wxWindowMGL::DoMoveWindow(int x, int y, int width, int height)
 919 {
 920     MGL_wmSetWindowPosition(GetHandle(), x, y, width, height);
 921 }
 922
 923 // set the size of the window: if the dimensions are positive, just use them,
 924 // but if any of them is equal to -1, it means that we must find the value for
 925 // it ourselves (unless sizeFlags contains wxSIZE_ALLOW_MINUS_ONE flag, in
 926 // which case -1 is a valid value for x and y)
 927 //
 928 // If sizeFlags contains wxSIZE_AUTO_WIDTH/HEIGHT flags (default), we calculate
 929 // the width/height to best suit our contents, otherwise we reuse the current
 930 // width/height
 931 void wxWindowMGL::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 932 {
 933     // get the current size and position...
 934     int currentX, currentY;
 935     GetPosition(&currentX, &currentY);
 936     int currentW,currentH;
 937     GetSize(&currentW, &currentH);
 938
 939     // ... and don't do anything (avoiding flicker) if it's already ok
 940     if ( x == currentX && y == currentY &&
 941          width == currentW && height == currentH )
 942     {
 943         return;
 944     }
 945
 946     if ( x == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
 947         x = currentX;
 948     if ( y == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
 949         y = currentY;
 950
 951     AdjustForParentClientOrigin(x, y, sizeFlags);
 952
 953     wxSize size(-1, -1);
 954     if ( width == -1 )
 955     {
 956         if ( sizeFlags & wxSIZE_AUTO_WIDTH )
 957         {
 958             size = DoGetBestSize();
 959             width = size.x;
 960         }
 961         else
 962         {
 963             // just take the current one
 964             width = currentW;
 965         }
 966     }
 967
 968     if ( height == -1 )
 969     {
 970         if ( sizeFlags & wxSIZE_AUTO_HEIGHT )
 971         {
 972             if ( size.x == -1 )
 973             {
 974                 size = DoGetBestSize();
 975             }
 976             //else: already called DoGetBestSize() above
 977
 978             height = size.y;
 979         }
 980         else
 981         {
 982             // just take the current one
 983             height = currentH;
 984         }
 985     }
 986
 987     int maxWidth = GetMaxWidth(),
 988         minWidth = GetMinWidth(),
 989         maxHeight = GetMaxHeight(),
 990         minHeight = GetMinHeight();
 991
 992     if ( minWidth != -1 && width < minWidth ) width = minWidth;
 993     if ( maxWidth != -1 && width > maxWidth ) width = maxWidth;
 994     if ( minHeight != -1 && height < minHeight ) height = minHeight;
 995     if ( maxHeight != -1 && height > maxHeight ) height = maxHeight;
 996
 997     if ( m_wnd->x != x || m_wnd->y != y ||
 998          (int)m_wnd->width != width || (int)m_wnd->height != height )
 999     {
1000         DoMoveWindow(x, y, width, height);
1001
1002         wxSizeEvent event(wxSize(width, height), GetId());
1003         event.SetEventObject(this);
1004         GetEventHandler()->ProcessEvent(event);
1005     }
1006 }
1007
1008 void wxWindowMGL::DoSetClientSize(int width, int height)
1009 {
1010     SetSize(width, height);
1011 }
1012
1013 // ---------------------------------------------------------------------------
1014 // text metrics
1015 // ---------------------------------------------------------------------------
1016
1017 int wxWindowMGL::GetCharHeight() const
1018 {
1019     wxScreenDC dc;
1020     dc.SetFont(m_font);
1021     return dc.GetCharHeight();
1022 }
1023
1024 int wxWindowMGL::GetCharWidth() const
1025 {
1026     wxScreenDC dc;
1027     dc.SetFont(m_font);
1028     return dc.GetCharWidth();
1029 }
1030
1031 void wxWindowMGL::GetTextExtent(const wxString& string,
1032                              int *x, int *y,
1033                              int *descent, int *externalLeading,
1034                              const wxFont *theFont) const
1035 {
1036     wxScreenDC dc;
1037     if (!theFont)
1038         theFont = &m_font;
1039     dc.GetTextExtent(string, x, y, descent, externalLeading, (wxFont*)theFont);
1040 }
1041
1042 #if wxUSE_CARET && WXWIN_COMPATIBILITY
1043 // ---------------------------------------------------------------------------
1044 // Caret manipulation
1045 // ---------------------------------------------------------------------------
1046
1047 void wxWindowMGL::CreateCaret(int w, int h)
1048 {
1049     SetCaret(new wxCaret(this, w, h));
1050 }
1051
1052 void wxWindowMGL::CreateCaret(const wxBitmap *WXUNUSED(bitmap))
1053 {
1054     wxFAIL_MSG("not implemented");
1055 }
1056
1057 void wxWindowMGL::ShowCaret(bool show)
1058 {
1059     wxCHECK_RET( m_caret, "no caret to show" );
1060
1061     m_caret->Show(show);
1062 }
1063
1064 void wxWindowMGL::DestroyCaret()
1065 {
1066     SetCaret(NULL);
1067 }
1068
1069 void wxWindowMGL::SetCaretPos(int x, int y)
1070 {
1071     wxCHECK_RET( m_caret, "no caret to move" );
1072
1073     m_caret->Move(x, y);
1074 }
1075
1076 void wxWindowMGL::GetCaretPos(int *x, int *y) const
1077 {
1078     wxCHECK_RET( m_caret, "no caret to get position of" );
1079
1080     m_caret->GetPosition(x, y);
1081 }
1082 #endif // wxUSE_CARET
1083
1084
1085 // ---------------------------------------------------------------------------
1086 // painting
1087 // ---------------------------------------------------------------------------
1088
1089 void wxWindowMGL::Clear()
1090 {
1091     wxClientDC dc((wxWindow *)this);
1092     wxBrush brush(GetBackgroundColour(), wxSOLID);
1093     dc.SetBackground(brush);
1094     dc.Clear();
1095 }
1096
1097 #include "wx/menu.h"
1098 void wxWindowMGL::Refresh(bool eraseBack, const wxRect *rect)
1099 {
1100     if ( m_eraseBackground == -1 )
1101         m_eraseBackground = eraseBack;
1102     else
1103         m_eraseBackground |= eraseBack;
1104
1105     if ( rect )
1106     {
1107         rect_t r;
1108         r.left = rect->GetLeft(), r.right = rect->GetRight();
1109         r.top = rect->GetTop(), r.bottom = rect->GetBottom();
1110         MGL_wmInvalidateWindowRect(GetHandle(), &r);
1111     }
1112     else
1113         MGL_wmInvalidateWindow(GetHandle());
1114 }
1115
1116 void wxWindowMGL::Update()
1117 {
1118     if ( !m_frozen )
1119         MGL_wmUpdateDC(g_winMng);
1120 }
1121
1122 void wxWindowMGL::Freeze()
1123 {
1124     m_frozen = TRUE;
1125     m_refreshAfterThaw = FALSE;
1126 }
1127
1128 void wxWindowMGL::Thaw()
1129 {
1130     m_frozen = FALSE;
1131     if ( m_refreshAfterThaw )
1132         Refresh();
1133 }
1134
1135 void wxWindowMGL::HandlePaint(MGLDevCtx *dc)
1136 {
1137     if ( m_frozen )
1138     {
1139         // Don't paint anything if the window is frozen.
1140         m_refreshAfterThaw = TRUE;
1141         return;
1142     }
1143
1144 #ifdef __WXDEBUG__
1145     // FIXME_MGL -- debugging stuff, to be removed!
1146     static int debugPaintEvents = -1;
1147     if ( debugPaintEvents == -1 )
1148         debugPaintEvents = wxGetEnv(wxT("WXMGL_DEBUG_PAINT_EVENTS"), NULL);
1149     if ( debugPaintEvents )
1150     {
1151         dc->setColorRGB(255,0,255);
1152         dc->fillRect(-1000,-1000,2000,2000);
1153         wxUsleep(50);
1154     }
1155 #endif
1156
1157     MGLRegion clip;
1158     dc->getClipRegion(clip);
1159     m_updateRegion = wxRegion(clip);
1160     m_paintMGLDC = dc;
1161
1162 #if wxUSE_CARET
1163     // must hide caret temporarily, otherwise we'd get rendering artifacts
1164     wxCaret *caret = GetCaret();
1165     if ( caret )
1166         caret->Hide();
1167 #endif // wxUSE_CARET
1168
1169     if ( m_eraseBackground != 0 )
1170     {
1171         wxWindowDC dc((wxWindow*)this);
1172         wxEraseEvent eventEr(m_windowId, &dc);
1173         eventEr.SetEventObject(this);
1174         GetEventHandler()->ProcessEvent(eventEr);
1175     }
1176     m_eraseBackground = -1;
1177
1178     wxNcPaintEvent eventNc(GetId());
1179     eventNc.SetEventObject(this);
1180     GetEventHandler()->ProcessEvent(eventNc);
1181
1182     wxPaintEvent eventPt(GetId());
1183     eventPt.SetEventObject(this);
1184     GetEventHandler()->ProcessEvent(eventPt);
1185
1186 #if wxUSE_CARET
1187     if ( caret )
1188         caret->Show();
1189 #endif // wxUSE_CARET
1190
1191     m_paintMGLDC = NULL;
1192     m_updateRegion.Clear();
1193 }
1194
1195
1196 // Find the wxWindow at the current mouse position, returning the mouse
1197 // position.
1198 wxWindow* wxFindWindowAtPointer(wxPoint& pt)
1199 {
1200     return wxFindWindowAtPoint(pt = wxGetMousePosition());
1201 }
1202
1203 wxWindow* wxFindWindowAtPoint(const wxPoint& pt)
1204 {
1205     window_t *wnd = MGL_wmGetWindowAtPosition(g_winMng, pt.x, pt.y);
1206     return (wxWindow*)wnd->userData;
1207 }