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     return FALSE;
 445 }
 446
 447 static ibool MGLAPI wxWindowKeybHandler(window_t *wnd, event_t *e)
 448 {
 449     wxWindowMGL *win = (wxWindowMGL*)MGL_wmGetWindowUserData(wnd);
 450
 451     if ( !win->IsEnabled() ) return FALSE;
 452
 453     wxPoint where;
 454     MGL_wmCoordGlobalToLocal(win->GetHandle(),
 455                              e->where_x, e->where_y, &where.x, &where.y);
 456
 457     wxKeyEvent event;
 458     event.SetEventObject(win);
 459     event.SetTimestamp(e->when);
 460     event.m_keyCode = wxScanToKeyCode(e, TRUE);
 461     event.m_scanCode = 0; // not used by wx at all
 462     event.m_x = where.x;
 463     event.m_y = where.y;
 464     event.m_shiftDown = e->modifiers & EVT_SHIFTKEY;
 465     event.m_controlDown = e->modifiers & EVT_CTRLSTATE;
 466     event.m_altDown = e->modifiers & EVT_LEFTALT;
 467     event.m_metaDown = e->modifiers & EVT_RIGHTALT;
 468
 469     if ( e->what == EVT_KEYUP )
 470     {
 471         event.SetEventType(wxEVT_KEY_UP);
 472         return win->GetEventHandler()->ProcessEvent(event);
 473     }
 474     else
 475     {
 476         bool ret;
 477         wxKeyEvent event2;
 478
 479         event.SetEventType(wxEVT_KEY_DOWN);
 480         event2 = event;
 481
 482         ret = win->GetEventHandler()->ProcessEvent(event);
 483
 484         // wxMSW doesn't send char events with Alt pressed
 485         // Only send wxEVT_CHAR event if not processed yet. Thus, ALT-x
 486         // will only be sent if it is not in an accelerator table:
 487         event2.m_keyCode = wxScanToKeyCode(e, FALSE);
 488         if ( !ret && event2.m_keyCode != 0 )
 489         {
 490             event2.SetEventType(wxEVT_CHAR);
 491             ret = win->GetEventHandler()->ProcessEvent(event2);
 492         }
 493
 494         // Synthetize navigation key event, but do it only if the TAB key
 495         // wasn't handled yet:
 496         if ( !ret && event.m_keyCode == WXK_TAB &&
 497              win->GetParent() && win->GetParent()->HasFlag(wxTAB_TRAVERSAL) )
 498         {
 499             wxNavigationKeyEvent navEvent;
 500             navEvent.SetEventObject(win->GetParent());
 501             // Shift-TAB goes in reverse direction:
 502             navEvent.SetDirection(!event.m_shiftDown);
 503             // Ctrl-TAB changes the (parent) window, i.e. switch notebook page:
 504             navEvent.SetWindowChange(event.m_controlDown);
 505             navEvent.SetCurrentFocus(wxStaticCast(win, wxWindow));
 506             ret = win->GetParent()->GetEventHandler()->ProcessEvent(navEvent);
 507         }
 508
 509         // Finally, process special meaning keys that are usually
 510         // a responsibility of OS or window manager:
 511         if ( !ret )
 512             ret = wxHandleSpecialKeys(event);
 513
 514         return ret;
 515     }
 516 }
 517
 518 // ---------------------------------------------------------------------------
 519 // event tables
 520 // ---------------------------------------------------------------------------
 521
 522 // in wxUniv this class is abstract because it doesn't have DoPopupMenu()
 523 IMPLEMENT_ABSTRACT_CLASS(wxWindowMGL, wxWindowBase)
 524
 525 BEGIN_EVENT_TABLE(wxWindowMGL, wxWindowBase)
 526     EVT_IDLE(wxWindowMGL::OnIdle)
 527 END_EVENT_TABLE()
 528
 529 // ===========================================================================
 530 // implementation
 531 // ===========================================================================
 532
 533 // ----------------------------------------------------------------------------
 534 // constructors and such
 535 // ----------------------------------------------------------------------------
 536
 537 extern wxDisplayModeInfo wxGetDefaultDisplayMode();
 538
 539 void wxWindowMGL::Init()
 540 {
 541     // First of all, make sure window manager is up and running. If it is
 542     // not the case, initialize it in default display mode
 543     if ( !g_winMng )
 544     {
 545         if ( !wxTheApp->SetDisplayMode(wxGetDefaultDisplayMode()) )
 546             wxFatalError(_("Cannot initialize display."));
 547     }
 548
 549     // generic:
 550     InitBase();
 551
 552     // mgl specific:
 553     m_wnd = NULL;
 554     m_isShown = TRUE;
 555     m_isBeingDeleted = FALSE;
 556     m_isEnabled = TRUE;
 557     m_frozen = FALSE;
 558     m_paintMGLDC = NULL;
 559     m_eraseBackground = -1;
 560 }
 561
 562 // Destructor
 563 wxWindowMGL::~wxWindowMGL()
 564 {
 565     m_isBeingDeleted = TRUE;
 566
 567     if ( gs_mouseCapture == this )
 568         ReleaseMouse();
 569
 570     if (gs_activeFrame == this)
 571     {
 572         gs_activeFrame = NULL;
 573         // activate next frame in Z-order:
 574         if ( m_wnd->prev )
 575         {
 576             wxWindowMGL *win = (wxWindowMGL*)m_wnd->prev->userData;
 577             win->SetFocus();
 578         }
 579         else if ( m_wnd->next )
 580         {
 581             wxWindowMGL *win = (wxWindowMGL*)m_wnd->next->userData;
 582             win->SetFocus();
 583         }
 584     }
 585
 586     if ( gs_focusedWindow == this )
 587         KillFocus();
 588
 589     if ( gs_windowUnderMouse == this )
 590         gs_windowUnderMouse = NULL;
 591
 592     // VS: destroy children first and _then_ detach *this from its parent.
 593     //     If we'd do it the other way around, children wouldn't be able
 594     //     find their parent frame (see above).
 595     DestroyChildren();
 596
 597     if ( m_parent )
 598         m_parent->RemoveChild(this);
 599
 600     if ( m_wnd )
 601         MGL_wmDestroyWindow(m_wnd);
 602 }
 603
 604 // real construction (Init() must have been called before!)
 605 bool wxWindowMGL::Create(wxWindow *parent,
 606                          wxWindowID id,
 607                          const wxPoint& pos,
 608                          const wxSize& size,
 609                          long style,
 610                          const wxString& name)
 611 {
 612     if ( !CreateBase(parent, id, pos, size, style, wxDefaultValidator, name) )
 613         return FALSE;
 614
 615     if ( parent )
 616         parent->AddChild(this);
 617
 618     int x, y, w, h;
 619     x = pos.x, y = pos.y;
 620     if ( x == -1 )
 621         x = 0; // FIXME_MGL, something better, see GTK+
 622     if ( y == -1 )
 623         y = 0; // FIXME_MGL, something better, see GTK+
 624     AdjustForParentClientOrigin(x, y, 0);
 625     w = WidthDefault(size.x);
 626     h = HeightDefault(size.y);
 627
 628     long mgl_style = 0;
 629     window_t *wnd_parent = parent ? parent->GetHandle() : NULL;
 630
 631     if ( !(style & wxNO_FULL_REPAINT_ON_RESIZE) )
 632     {
 633         mgl_style |= MGL_WM_FULL_REPAINT_ON_RESIZE;
 634     }
 635     if ( style & wxSTAY_ON_TOP )
 636     {
 637         mgl_style |= MGL_WM_ALWAYS_ON_TOP;
 638     }
 639     if ( style & wxPOPUP_WINDOW )
 640     {
 641         mgl_style |= MGL_WM_ALWAYS_ON_TOP;
 642         // it is created hidden as other top level windows
 643         m_isShown = FALSE;
 644         wnd_parent = NULL;
 645     }
 646
 647     window_t *wnd = MGL_wmCreateWindow(g_winMng, wnd_parent, x, y, w, h);
 648
 649     MGL_wmSetWindowFlags(wnd, mgl_style);
 650     MGL_wmShowWindow(wnd, m_isShown);
 651
 652     SetMGLwindow_t(wnd);
 653
 654     return TRUE;
 655 }
 656
 657 void wxWindowMGL::SetMGLwindow_t(struct window_t *wnd)
 658 {
 659     if ( m_wnd )
 660         MGL_wmDestroyWindow(m_wnd);
 661
 662     m_wnd = wnd;
 663     if ( !m_wnd ) return;
 664
 665     m_isShown = m_wnd->visible;
 666
 667     MGL_wmSetWindowUserData(m_wnd, (void*) this);
 668     MGL_wmSetWindowPainter(m_wnd, wxWindowPainter);
 669     MGL_wmPushWindowEventHandler(m_wnd, wxWindowMouseHandler, EVT_MOUSEEVT, 0);
 670     MGL_wmPushWindowEventHandler(m_wnd, wxWindowKeybHandler, EVT_KEYEVT, 0);
 671
 672     if ( m_cursor.Ok() )
 673         MGL_wmSetWindowCursor(m_wnd, *m_cursor.GetMGLCursor());
 674     else
 675         MGL_wmSetWindowCursor(m_wnd, *wxSTANDARD_CURSOR->GetMGLCursor());
 676 }
 677
 678 // ---------------------------------------------------------------------------
 679 // basic operations
 680 // ---------------------------------------------------------------------------
 681
 682 void wxWindowMGL::SetFocus()
 683 {
 684     if ( gs_focusedWindow == this ) return;
 685
 686     wxWindowMGL *oldFocusedWindow = gs_focusedWindow;
 687
 688     if ( gs_focusedWindow )
 689     {
 690         gs_toBeFocusedWindow = (wxWindow*)this;
 691         gs_focusedWindow->KillFocus();
 692         gs_toBeFocusedWindow = NULL;
 693     }
 694
 695     gs_focusedWindow = this;
 696
 697     MGL_wmCaptureEvents(GetHandle(), EVT_KEYEVT, wxMGL_CAPTURE_KEYB);
 698
 699     wxWindowMGL *active = wxGetTopLevelParent(this);
 700     if ( !(m_windowStyle & wxPOPUP_WINDOW) && active != gs_activeFrame )
 701     {
 702         if ( gs_activeFrame )
 703         {
 704             wxActivateEvent event(wxEVT_ACTIVATE, FALSE, gs_activeFrame->GetId());
 705             event.SetEventObject(gs_activeFrame);
 706             gs_activeFrame->GetEventHandler()->ProcessEvent(event);
 707         }
 708
 709         gs_activeFrame = active;
 710         wxActivateEvent event(wxEVT_ACTIVATE, TRUE, gs_activeFrame->GetId());
 711         event.SetEventObject(gs_activeFrame);
 712         gs_activeFrame->GetEventHandler()->ProcessEvent(event);
 713     }
 714
 715     wxFocusEvent event(wxEVT_SET_FOCUS, GetId());
 716     event.SetEventObject(this);
 717     event.SetWindow((wxWindow*)oldFocusedWindow);
 718     GetEventHandler()->ProcessEvent(event);
 719
 720 #if wxUSE_CARET
 721     // caret needs to be informed about focus change
 722     wxCaret *caret = GetCaret();
 723     if ( caret )
 724         caret->OnSetFocus();
 725 #endif // wxUSE_CARET
 726 }
 727
 728 void wxWindowMGL::KillFocus()
 729 {
 730     if ( gs_focusedWindow != this ) return;
 731     gs_focusedWindow = NULL;
 732
 733     if ( m_isBeingDeleted ) return;
 734
 735     MGL_wmUncaptureEvents(GetHandle(), wxMGL_CAPTURE_KEYB);
 736
 737 #if wxUSE_CARET
 738     // caret needs to be informed about focus change
 739     wxCaret *caret = GetCaret();
 740     if ( caret )
 741         caret->OnKillFocus();
 742 #endif // wxUSE_CARET
 743
 744     wxFocusEvent event(wxEVT_KILL_FOCUS, GetId());
 745     event.SetEventObject(this);
 746     event.SetWindow(gs_toBeFocusedWindow);
 747     GetEventHandler()->ProcessEvent(event);
 748 }
 749
 750 // ----------------------------------------------------------------------------
 751 // this wxWindowBase function is implemented here (in platform-specific file)
 752 // because it is static and so couldn't be made virtual
 753 // ----------------------------------------------------------------------------
 754 wxWindow *wxWindowBase::FindFocus()
 755 {
 756     return (wxWindow*)gs_focusedWindow;
 757 }
 758
 759 bool wxWindowMGL::Show(bool show)
 760 {
 761     if ( !wxWindowBase::Show(show) )
 762         return FALSE;
 763
 764     MGL_wmShowWindow(m_wnd, show);
 765
 766     if (!show && gs_activeFrame == this)
 767     {
 768         // activate next frame in Z-order:
 769         if ( m_wnd->prev )
 770         {
 771             wxWindowMGL *win = (wxWindowMGL*)m_wnd->prev->userData;
 772             win->SetFocus();
 773         }
 774         else if ( m_wnd->next )
 775         {
 776             wxWindowMGL *win = (wxWindowMGL*)m_wnd->next->userData;
 777             win->SetFocus();
 778         }
 779         else
 780         {
 781             gs_activeFrame = NULL;
 782         }
 783     }
 784
 785     return TRUE;
 786 }
 787
 788 // Raise the window to the top of the Z order
 789 void wxWindowMGL::Raise()
 790 {
 791     MGL_wmRaiseWindow(m_wnd);
 792 }
 793
 794 // Lower the window to the bottom of the Z order
 795 void wxWindowMGL::Lower()
 796 {
 797     MGL_wmLowerWindow(m_wnd);
 798 }
 799
 800 void wxWindowMGL::DoCaptureMouse()
 801 {
 802     if ( gs_mouseCapture )
 803         MGL_wmUncaptureEvents(gs_mouseCapture->m_wnd, wxMGL_CAPTURE_MOUSE);
 804
 805     gs_mouseCapture = this;
 806     MGL_wmCaptureEvents(m_wnd, EVT_MOUSEEVT, wxMGL_CAPTURE_MOUSE);
 807 }
 808
 809 void wxWindowMGL::DoReleaseMouse()
 810 {
 811     wxASSERT_MSG( gs_mouseCapture == this, wxT("attempt to release mouse, but this window hasn't captured it") );
 812
 813     MGL_wmUncaptureEvents(m_wnd, wxMGL_CAPTURE_MOUSE);
 814     gs_mouseCapture = NULL;
 815 }
 816
 817 /* static */ wxWindow *wxWindowBase::GetCapture()
 818 {
 819     return (wxWindow*)gs_mouseCapture;
 820 }
 821
 822 bool wxWindowMGL::SetCursor(const wxCursor& cursor)
 823 {
 824     if ( !wxWindowBase::SetCursor(cursor) )
 825     {
 826         // no change
 827         return FALSE;
 828     }
 829
 830     if ( m_cursor.Ok() )
 831         MGL_wmSetWindowCursor(m_wnd, *m_cursor.GetMGLCursor());
 832     else
 833         MGL_wmSetWindowCursor(m_wnd, *wxSTANDARD_CURSOR->GetMGLCursor());
 834
 835     return TRUE;
 836 }
 837
 838 void wxWindowMGL::WarpPointer(int x, int y)
 839 {
 840     int w, h;
 841     wxDisplaySize(&w, &h);
 842
 843     ClientToScreen(&x, &y);
 844     if ( x < 0 )
 845         x = 0;
 846     if ( y < 0 )
 847         y = 0;
 848     if ( x >= w )
 849         x = w-1;
 850     if ( y >= h )
 851         y = h-1;
 852
 853     EVT_setMousePos(x, y);
 854 }
 855
 856 #if WXWIN_COMPATIBILITY
 857 // If nothing defined for this, try the parent.
 858 // E.g. we may be a button loaded from a resource, with no callback function
 859 // defined.
 860 void wxWindowMGL::OnCommand(wxWindow& win, wxCommandEvent& event)
 861 {
 862     if ( GetEventHandler()->ProcessEvent(event)  )
 863         return;
 864     if ( m_parent )
 865         m_parent->GetEventHandler()->OnCommand(win, event);
 866 }
 867 #endif // WXWIN_COMPATIBILITY_2
 868
 869 #if WXWIN_COMPATIBILITY
 870 wxObject* wxWindowMGL::GetChild(int number) const
 871 {
 872     // Return a pointer to the Nth object in the Panel
 873     wxNode *node = GetChildren().First();
 874     int n = number;
 875     while (node && n--)
 876         node = node->Next();
 877     if ( node )
 878     {
 879         wxObject *obj = (wxObject *)node->Data();
 880         return(obj);
 881     }
 882     else
 883         return NULL;
 884 }
 885 #endif // WXWIN_COMPATIBILITY
 886
 887 // Set this window to be the child of 'parent'.
 888 bool wxWindowMGL::Reparent(wxWindowBase *parent)
 889 {
 890     if ( !wxWindowBase::Reparent(parent) )
 891         return FALSE;
 892
 893     MGL_wmReparentWindow(m_wnd, parent->GetHandle());
 894
 895     return TRUE;
 896 }
 897
 898
 899 // ---------------------------------------------------------------------------
 900 // drag and drop
 901 // ---------------------------------------------------------------------------
 902
 903 #if wxUSE_DRAG_AND_DROP
 904
 905 void wxWindowMGL::SetDropTarget(wxDropTarget *pDropTarget)
 906 {
 907     if ( m_dropTarget != 0 ) {
 908         m_dropTarget->Revoke(m_hWnd);
 909         delete m_dropTarget;
 910     }
 911
 912     m_dropTarget = pDropTarget;
 913     if ( m_dropTarget != 0 )
 914         m_dropTarget->Register(m_hWnd);
 915 }
 916 // FIXME_MGL
 917 #endif // wxUSE_DRAG_AND_DROP
 918
 919 // old style file-manager drag&drop support: we retain the old-style
 920 // DragAcceptFiles in parallel with SetDropTarget.
 921 void wxWindowMGL::DragAcceptFiles(bool accept)
 922 {
 923 #if 0 // FIXME_MGL
 924     HWND hWnd = GetHwnd();
 925     if ( hWnd )
 926         ::DragAcceptFiles(hWnd, (BOOL)accept);
 927 #endif
 928 }
 929
 930 // ---------------------------------------------------------------------------
 931 // moving and resizing
 932 // ---------------------------------------------------------------------------
 933
 934 // Get total size
 935 void wxWindowMGL::DoGetSize(int *x, int *y) const
 936 {
 937     wxASSERT_MSG( m_wnd, wxT("invalid window") );
 938
 939     if (x) *x = m_wnd->width;
 940     if (y) *y = m_wnd->height;
 941 }
 942
 943 void wxWindowMGL::DoGetPosition(int *x, int *y) const
 944 {
 945     wxASSERT_MSG( m_wnd, wxT("invalid window") );
 946
 947     int pX = 0, pY = 0;
 948     AdjustForParentClientOrigin(pX, pY, 0);
 949
 950     if (x) *x = m_wnd->x - pX;
 951     if (y) *y = m_wnd->y - pY;
 952 }
 953
 954 void wxWindowMGL::DoScreenToClient(int *x, int *y) const
 955 {
 956     int ax, ay;
 957     MGL_wmCoordGlobalToLocal(m_wnd, 0, 0, &ax, &ay);
 958     if (x)
 959         (*x) += ax;
 960     if (y)
 961         (*y) += ay;
 962 }
 963
 964 void wxWindowMGL::DoClientToScreen(int *x, int *y) const
 965 {
 966     int ax, ay;
 967     MGL_wmCoordLocalToGlobal(m_wnd, 0, 0, &ax, &ay);
 968     if (x)
 969         (*x) += ax;
 970     if (y)
 971         (*y) += ay;
 972 }
 973
 974 // Get size *available for subwindows* i.e. excluding menu bar etc.
 975 void wxWindowMGL::DoGetClientSize(int *x, int *y) const
 976 {
 977     DoGetSize(x, y);
 978 }
 979
 980 void wxWindowMGL::DoMoveWindow(int x, int y, int width, int height)
 981 {
 982     MGL_wmSetWindowPosition(GetHandle(), x, y, width, height);
 983 }
 984
 985 // set the size of the window: if the dimensions are positive, just use them,
 986 // but if any of them is equal to -1, it means that we must find the value for
 987 // it ourselves (unless sizeFlags contains wxSIZE_ALLOW_MINUS_ONE flag, in
 988 // which case -1 is a valid value for x and y)
 989 //
 990 // If sizeFlags contains wxSIZE_AUTO_WIDTH/HEIGHT flags (default), we calculate
 991 // the width/height to best suit our contents, otherwise we reuse the current
 992 // width/height
 993 void wxWindowMGL::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 994 {
 995     // get the current size and position...
 996     int currentX, currentY;
 997     GetPosition(&currentX, &currentY);
 998     int currentW,currentH;
 999     GetSize(&currentW, &currentH);
1000
1001     // ... and don't do anything (avoiding flicker) if it's already ok
1002     if ( x == currentX && y == currentY &&
1003          width == currentW && height == currentH )
1004     {
1005         return;
1006     }
1007
1008     if ( x == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
1009         x = currentX;
1010     if ( y == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
1011         y = currentY;
1012
1013     AdjustForParentClientOrigin(x, y, sizeFlags);
1014
1015     wxSize size(-1, -1);
1016     if ( width == -1 )
1017     {
1018         if ( sizeFlags & wxSIZE_AUTO_WIDTH )
1019         {
1020             size = DoGetBestSize();
1021             width = size.x;
1022         }
1023         else
1024         {
1025             // just take the current one
1026             width = currentW;
1027         }
1028     }
1029
1030     if ( height == -1 )
1031     {
1032         if ( sizeFlags & wxSIZE_AUTO_HEIGHT )
1033         {
1034             if ( size.x == -1 )
1035             {
1036                 size = DoGetBestSize();
1037             }
1038             //else: already called DoGetBestSize() above
1039
1040             height = size.y;
1041         }
1042         else
1043         {
1044             // just take the current one
1045             height = currentH;
1046         }
1047     }
1048
1049     int maxWidth = GetMaxWidth(),
1050         minWidth = GetMinWidth(),
1051         maxHeight = GetMaxHeight(),
1052         minHeight = GetMinHeight();
1053
1054     if ( minWidth != -1 && width < minWidth ) width = minWidth;
1055     if ( maxWidth != -1 && width > maxWidth ) width = maxWidth;
1056     if ( minHeight != -1 && height < minHeight ) height = minHeight;
1057     if ( maxHeight != -1 && height > maxHeight ) height = maxHeight;
1058
1059     if ( m_wnd->x != x || m_wnd->y != y ||
1060          (int)m_wnd->width != width || (int)m_wnd->height != height )
1061     {
1062         DoMoveWindow(x, y, width, height);
1063
1064         wxSizeEvent event(wxSize(width, height), GetId());
1065         event.SetEventObject(this);
1066         GetEventHandler()->ProcessEvent(event);
1067     }
1068 }
1069
1070 void wxWindowMGL::DoSetClientSize(int width, int height)
1071 {
1072     SetSize(width, height);
1073 }
1074
1075 // ---------------------------------------------------------------------------
1076 // text metrics
1077 // ---------------------------------------------------------------------------
1078
1079 int wxWindowMGL::GetCharHeight() const
1080 {
1081     wxScreenDC dc;
1082     dc.SetFont(m_font);
1083     return dc.GetCharHeight();
1084 }
1085
1086 int wxWindowMGL::GetCharWidth() const
1087 {
1088     wxScreenDC dc;
1089     dc.SetFont(m_font);
1090     return dc.GetCharWidth();
1091 }
1092
1093 void wxWindowMGL::GetTextExtent(const wxString& string,
1094                              int *x, int *y,
1095                              int *descent, int *externalLeading,
1096                              const wxFont *theFont) const
1097 {
1098     wxScreenDC dc;
1099     if (!theFont)
1100         theFont = &m_font;
1101     dc.GetTextExtent(string, x, y, descent, externalLeading, (wxFont*)theFont);
1102 }
1103
1104 #if wxUSE_CARET && WXWIN_COMPATIBILITY
1105 // ---------------------------------------------------------------------------
1106 // Caret manipulation
1107 // ---------------------------------------------------------------------------
1108
1109 void wxWindowMGL::CreateCaret(int w, int h)
1110 {
1111     SetCaret(new wxCaret(this, w, h));
1112 }
1113
1114 void wxWindowMGL::CreateCaret(const wxBitmap *WXUNUSED(bitmap))
1115 {
1116     wxFAIL_MSG("not implemented");
1117 }
1118
1119 void wxWindowMGL::ShowCaret(bool show)
1120 {
1121     wxCHECK_RET( m_caret, "no caret to show" );
1122
1123     m_caret->Show(show);
1124 }
1125
1126 void wxWindowMGL::DestroyCaret()
1127 {
1128     SetCaret(NULL);
1129 }
1130
1131 void wxWindowMGL::SetCaretPos(int x, int y)
1132 {
1133     wxCHECK_RET( m_caret, "no caret to move" );
1134
1135     m_caret->Move(x, y);
1136 }
1137
1138 void wxWindowMGL::GetCaretPos(int *x, int *y) const
1139 {
1140     wxCHECK_RET( m_caret, "no caret to get position of" );
1141
1142     m_caret->GetPosition(x, y);
1143 }
1144 #endif // wxUSE_CARET
1145
1146
1147 // ---------------------------------------------------------------------------
1148 // painting
1149 // ---------------------------------------------------------------------------
1150
1151 void wxWindowMGL::Clear()
1152 {
1153     wxClientDC dc((wxWindow *)this);
1154     wxBrush brush(GetBackgroundColour(), wxSOLID);
1155     dc.SetBackground(brush);
1156     dc.Clear();
1157 }
1158
1159 #include "wx/menu.h"
1160 void wxWindowMGL::Refresh(bool eraseBack, const wxRect *rect)
1161 {
1162     if ( m_eraseBackground == -1 )
1163         m_eraseBackground = eraseBack;
1164     else
1165         m_eraseBackground |= eraseBack;
1166
1167     if ( rect )
1168     {
1169         rect_t r;
1170         r.left = rect->GetLeft(), r.right = rect->GetRight();
1171         r.top = rect->GetTop(), r.bottom = rect->GetBottom();
1172         MGL_wmInvalidateWindowRect(GetHandle(), &r);
1173     }
1174     else
1175         MGL_wmInvalidateWindow(GetHandle());
1176 }
1177
1178 void wxWindowMGL::Update()
1179 {
1180     if ( !m_frozen )
1181         MGL_wmUpdateDC(g_winMng);
1182 }
1183
1184 void wxWindowMGL::Freeze()
1185 {
1186     m_frozen = TRUE;
1187     m_refreshAfterThaw = FALSE;
1188 }
1189
1190 void wxWindowMGL::Thaw()
1191 {
1192     m_frozen = FALSE;
1193     if ( m_refreshAfterThaw )
1194         Refresh();
1195 }
1196
1197 void wxWindowMGL::HandlePaint(MGLDevCtx *dc)
1198 {
1199     if ( m_frozen )
1200     {
1201         // Don't paint anything if the window is frozen.
1202         m_refreshAfterThaw = TRUE;
1203         return;
1204     }
1205
1206 #ifdef __WXDEBUG__
1207     // FIXME_MGL -- debugging stuff, to be removed!
1208     static int debugPaintEvents = -1;
1209     if ( debugPaintEvents == -1 )
1210         debugPaintEvents = wxGetEnv(wxT("WXMGL_DEBUG_PAINT_EVENTS"), NULL);
1211     if ( debugPaintEvents )
1212     {
1213         dc->setColorRGB(255,0,255);
1214         dc->fillRect(-1000,-1000,2000,2000);
1215         wxUsleep(50);
1216     }
1217 #endif
1218
1219     MGLRegion clip;
1220     dc->getClipRegion(clip);
1221     m_updateRegion = wxRegion(clip);
1222     m_paintMGLDC = dc;
1223
1224 #if wxUSE_CARET
1225     // must hide caret temporarily, otherwise we'd get rendering artifacts
1226     wxCaret *caret = GetCaret();
1227     if ( caret )
1228         caret->Hide();
1229 #endif // wxUSE_CARET
1230
1231     if ( m_eraseBackground != 0 )
1232     {
1233         wxWindowDC dc((wxWindow*)this);
1234         wxEraseEvent eventEr(m_windowId, &dc);
1235         eventEr.SetEventObject(this);
1236         GetEventHandler()->ProcessEvent(eventEr);
1237     }
1238     m_eraseBackground = -1;
1239
1240     wxNcPaintEvent eventNc(GetId());
1241     eventNc.SetEventObject(this);
1242     GetEventHandler()->ProcessEvent(eventNc);
1243
1244     wxPaintEvent eventPt(GetId());
1245     eventPt.SetEventObject(this);
1246     GetEventHandler()->ProcessEvent(eventPt);
1247
1248 #if wxUSE_CARET
1249     if ( caret )
1250         caret->Show();
1251 #endif // wxUSE_CARET
1252
1253     m_paintMGLDC = NULL;
1254     m_updateRegion.Clear();
1255 }
1256
1257
1258 // Find the wxWindow at the current mouse position, returning the mouse
1259 // position.
1260 wxWindow* wxFindWindowAtPointer(wxPoint& pt)
1261 {
1262     return wxFindWindowAtPoint(pt = wxGetMousePosition());
1263 }
1264
1265 wxWindow* wxFindWindowAtPoint(const wxPoint& pt)
1266 {
1267     window_t *wnd = MGL_wmGetWindowAtPosition(g_winMng, pt.x, pt.y);
1268     return (wxWindow*)wnd->userData;
1269 }
1270
1271
1272 // ---------------------------------------------------------------------------
1273 // idle events processing
1274 // ---------------------------------------------------------------------------
1275
1276 void wxWindowMGL::OnIdle(wxIdleEvent& WXUNUSED(event))
1277 {
1278     UpdateWindowUI();
1279 }