src/motif/window.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        windows.cpp
   3 // Purpose:     wxWindow
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "window.h"
  22 #endif
  23
  24 #include "wx/setup.h"
  25 #include "wx/menu.h"
  26 #include "wx/dc.h"
  27 #include "wx/dcclient.h"
  28 #include "wx/utils.h"
  29 #include "wx/app.h"
  30 #include "wx/panel.h"
  31 #include "wx/layout.h"
  32 #include "wx/dialog.h"
  33 #include "wx/listbox.h"
  34 #include "wx/button.h"
  35 #include "wx/settings.h"
  36 #include "wx/msgdlg.h"
  37 #include "wx/frame.h"
  38 #include "wx/scrolwin.h"
  39
  40 #include "wx/menuitem.h"
  41 #include "wx/log.h"
  42
  43 #if  wxUSE_DRAG_AND_DROP
  44     #include "wx/dnd.h"
  45 #endif
  46
  47 #include <Xm/Xm.h>
  48
  49 #include <Xm/DrawingA.h>
  50 #include <Xm/ScrolledW.h>
  51 #include <Xm/ScrollBar.h>
  52 #include <Xm/Frame.h>
  53 #include <Xm/Label.h>
  54
  55 #include "wx/motif/private.h"
  56
  57 #include <string.h>
  58
  59 // ----------------------------------------------------------------------------
  60 // constants
  61 // ----------------------------------------------------------------------------
  62
  63 static const int SCROLL_MARGIN = 4;
  64
  65 // ----------------------------------------------------------------------------
  66 // global variables for this module
  67 // ----------------------------------------------------------------------------
  68
  69 static wxHashTable *gs_wxWidgetHashTable;
  70
  71 // ----------------------------------------------------------------------------
  72 // private functions
  73 // ----------------------------------------------------------------------------
  74
  75 static void wxCanvasRepaintProc(Widget, XtPointer, XmDrawingAreaCallbackStruct * cbs);
  76 static void wxCanvasInputEvent(Widget drawingArea, XtPointer data, XmDrawingAreaCallbackStruct * cbs);
  77 static void wxCanvasMotionEvent(Widget, XButtonEvent * event);
  78 static void wxCanvasEnterLeave(Widget drawingArea, XtPointer clientData, XCrossingEvent * event);
  79 static void wxScrollBarCallback(Widget widget, XtPointer clientData,
  80                                 XmScaleCallbackStruct *cbs);
  81 static void wxPanelItemEventHandler(Widget    wid,
  82                                     XtPointer client_data,
  83                                     XEvent*   event,
  84                                     Boolean  *continueToDispatch);
  85
  86 // unused for now
  87 #if 0
  88
  89 // Helper function for 16-bit fonts
  90 static int str16len(const char *s)
  91 {
  92     int count = 0;
  93
  94     while (s[0] && s[1]) {
  95         count++;
  96         s += 2;
  97     }
  98
  99     return count;
 100 }
 101
 102 #endif // 0
 103
 104 // ----------------------------------------------------------------------------
 105 // macros
 106 // ----------------------------------------------------------------------------
 107
 108 #define event_left_is_down(x) ((x)->xbutton.state & Button1Mask)
 109 #define event_middle_is_down(x) ((x)->xbutton.state & Button2Mask)
 110 #define event_right_is_down(x) ((x)->xbutton.state & Button3Mask)
 111
 112 // ----------------------------------------------------------------------------
 113 // event tables
 114 // ----------------------------------------------------------------------------
 115
 116 #if !USE_SHARED_LIBRARY
 117     IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxEvtHandler)
 118
 119     BEGIN_EVENT_TABLE(wxWindow, wxEvtHandler)
 120         EVT_SYS_COLOUR_CHANGED(wxWindow::OnSysColourChanged)
 121         EVT_IDLE(wxWindow::OnIdle)
 122     END_EVENT_TABLE()
 123 #endif // USE_SHARED_LIBRARY
 124
 125 // ============================================================================
 126 // implementation
 127 // ============================================================================
 128
 129 // ----------------------------------------------------------------------------
 130 // helper functions
 131 // ----------------------------------------------------------------------------
 132
 133 void wxWindow::UnmanageAndDestroy(WXWidget widget)
 134 {
 135     Widget w = (Widget)widget;
 136     if ( w )
 137     {
 138         XtUnmanageChild(w);
 139         XtDestroyWidget(w);
 140     }
 141 }
 142
 143 bool wxWindow::MapOrUnmap(WXWidget widget, bool map)
 144 {
 145     Widget w = (Widget)widget;
 146     if ( !w )
 147         return FALSE;
 148
 149     if ( map )
 150         XtMapWidget(w);
 151     else
 152         XtUnmapWidget(w);
 153
 154     return TRUE;
 155 }
 156
 157 // ----------------------------------------------------------------------------
 158 // constructors
 159 // ----------------------------------------------------------------------------
 160
 161 void wxWindow::Init()
 162 {
 163     // generic initializations first
 164     InitBase();
 165
 166     // Motif-specific
 167     m_needsRefresh = TRUE;
 168     m_mainWidget = (WXWidget) 0;
 169
 170     m_button1Pressed =
 171     m_button2Pressed =
 172     m_button3Pressed = FALSE;
 173
 174     m_winCaptured = FALSE;
 175
 176     m_isShown = TRUE;
 177
 178     m_hScrollBar =
 179     m_vScrollBar =
 180     m_borderWidget =
 181     m_scrolledWindow =
 182     m_drawingArea = (WXWidget) 0;
 183
 184     m_hScroll =
 185     m_vScroll = FALSE;
 186
 187     m_scrollPosX =
 188     m_scrollPosY = 0;
 189
 190     m_backingPixmap = (WXPixmap) 0;
 191     m_pixmapWidth =
 192     m_pixmapHeight = 0;
 193
 194     m_pixmapOffsetX =
 195     m_pixmapOffsetY = 0;
 196
 197     m_lastTS = 0;
 198     m_lastButton = 0;
 199     m_canAddEventHandler = FALSE;
 200 }
 201
 202 // real construction (Init() must have been called before!)
 203 bool wxWindow::Create(wxWindow *parent, wxWindowID id,
 204                       const wxPoint& pos,
 205                       const wxSize& size,
 206                       long style,
 207                       const wxString& name)
 208 {
 209     wxCHECK_MSG( parent, FALSE, "can't create wxWindow without parent" );
 210
 211     CreateBase(parent, id, pos, size, style, name);
 212
 213     parent->AddChild(this);
 214
 215     m_backgroundColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE);
 216     m_foregroundColour = *wxBLACK;
 217
 218     //// TODO: we should probably optimize by only creating a
 219     //// a drawing area if we have one or more scrollbars (wxVSCROLL/wxHSCROLL).
 220     //// But for now, let's simplify things by always creating the
 221     //// drawing area, since otherwise the translations are different.
 222
 223     // New translations for getting mouse motion feedback
 224     static const String translations =
 225 "<Btn1Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 226 <Btn2Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 227 <Btn3Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 228 <BtnMotion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 229 <Btn1Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 230 <Btn2Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 231 <Btn3Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 232 <Btn1Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 233 <Btn2Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 234 <Btn3Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 235 <Motion>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 236 <EnterWindow>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 237 <LeaveWindow>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 238 <Key>: DrawingAreaInput()";
 239
 240     XtActionsRec actions[1];
 241     actions[0].string = "wxCanvasMotionEvent";
 242     actions[0].proc = (XtActionProc) wxCanvasMotionEvent;
 243     XtAppAddActions ((XtAppContext) wxTheApp->GetAppContext(), actions, 1);
 244
 245     Widget parentWidget = (Widget) parent->GetClientWidget();
 246     if (style & wxBORDER)
 247     {
 248         m_borderWidget = (WXWidget)XtVaCreateManagedWidget
 249                                    (
 250                                     "canvasBorder",
 251                                     xmFrameWidgetClass, parentWidget,
 252                                     XmNshadowType, XmSHADOW_IN,
 253                                     NULL
 254                                    );
 255     }
 256
 257     m_scrolledWindow = (WXWidget)XtVaCreateManagedWidget
 258                                  (
 259                                   "scrolledWindow",
 260                                   xmScrolledWindowWidgetClass,
 261                                   m_borderWidget ? (Widget) m_borderWidget
 262                                                  : parentWidget,
 263                                   XmNresizePolicy, XmRESIZE_NONE,
 264                                   XmNspacing, 0,
 265                                   XmNscrollingPolicy, XmAPPLICATION_DEFINED,
 266                                   //XmNscrollBarDisplayPolicy, XmAS_NEEDED,
 267                                   NULL
 268                                  );
 269
 270     XtTranslations ptr = XtParseTranslationTable(translations);
 271     m_drawingArea = (WXWidget)XtVaCreateWidget
 272                               (
 273                                name,
 274                                xmDrawingAreaWidgetClass, (Widget) m_scrolledWindow,
 275                                XmNunitType, XmPIXELS,
 276                                // XmNresizePolicy, XmRESIZE_ANY,
 277                                XmNresizePolicy, XmRESIZE_NONE,
 278                                XmNmarginHeight, 0,
 279                                XmNmarginWidth, 0,
 280                                XmNtranslations, ptr,
 281                                NULL
 282                               );
 283     XtFree((char *) ptr);
 284
 285 #if 0
 286     if (GetWindowStyleFlag() & wxOVERRIDE_KEY_TRANSLATIONS)
 287     {
 288         ptr = XtParseTranslationTable ("<Key>: DrawingAreaInput()");
 289         XtOverrideTranslations ((Widget) m_drawingArea, ptr);
 290         XtFree ((char *) ptr);
 291     }
 292 #endif // 0
 293
 294     wxAddWindowToTable((Widget) m_drawingArea, this);
 295     wxAddWindowToTable((Widget) m_scrolledWindow, this);
 296
 297     // This order is very important in Motif 1.2.1
 298     XtRealizeWidget ((Widget) m_scrolledWindow);
 299     XtRealizeWidget ((Widget) m_drawingArea);
 300     XtManageChild ((Widget) m_drawingArea);
 301
 302     ptr = XtParseTranslationTable("<Configure>: resize()");
 303     XtOverrideTranslations((Widget) m_drawingArea, ptr);
 304     XtFree ((char *) ptr);
 305
 306     XtAddCallback ((Widget) m_drawingArea, XmNexposeCallback, (XtCallbackProc) wxCanvasRepaintProc, (XtPointer) this);
 307     XtAddCallback ((Widget) m_drawingArea, XmNinputCallback, (XtCallbackProc) wxCanvasInputEvent, (XtPointer) this);
 308
 309     // TODO?
 310 #if 0
 311     display = XtDisplay (scrolledWindow);
 312     xwindow = XtWindow (drawingArea);
 313 #endif // 0
 314
 315     XtAddEventHandler(
 316                       (Widget)m_drawingArea,
 317                        PointerMotionHintMask | EnterWindowMask |
 318                        LeaveWindowMask | FocusChangeMask,
 319                        False,
 320                        (XtEventHandler) wxCanvasEnterLeave,
 321                        (XtPointer) this
 322                      );
 323
 324     // Scrolled widget needs to have its colour changed or we get a little blue
 325     // square where the scrollbars abutt
 326     wxColour backgroundColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE);
 327     DoChangeBackgroundColour(m_scrolledWindow, backgroundColour, TRUE);
 328     DoChangeBackgroundColour(m_drawingArea, backgroundColour, TRUE);
 329
 330     XmScrolledWindowSetAreas(
 331                              (Widget)m_scrolledWindow,
 332                              (Widget) 0, (Widget) 0,
 333                              (Widget) m_drawingArea);
 334
 335 #if 0
 336     if (m_hScrollBar)
 337         XtRealizeWidget ((Widget) m_hScrollBar);
 338     if (m_vScrollBar)
 339         XtRealizeWidget ((Widget) m_vScrollBar);
 340 #endif // 0
 341
 342     // Without this, the cursor may not be restored properly (e.g. in splitter
 343     // sample).
 344     SetCursor(*wxSTANDARD_CURSOR);
 345     SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
 346     SetSize(pos.x, pos.y, size.x, size.y);
 347
 348     return TRUE;
 349 }
 350
 351 // Destructor
 352 wxWindow::~wxWindow()
 353 {
 354     // Motif-specific actions first
 355     WXWidget wMain = GetMainWidget();
 356     if ( wMain )
 357     {
 358         // Removes event handlers
 359         DetachWidget(wMain);
 360     }
 361
 362     ClearUpdateRects();
 363
 364     // If m_drawingArea, we're a fully-fledged window with drawing area,
 365     // scrollbars etc. (what wxCanvas used to be)
 366     if ( m_drawingArea )
 367     {
 368         // Destroy children before destroying self
 369         DestroyChildren();
 370
 371         if (m_backingPixmap)
 372             XFreePixmap (XtDisplay ((Widget) GetMainWidget()), (Pixmap) m_backingPixmap);
 373
 374         Widget w = (Widget) m_drawingArea;
 375         wxDeleteWindowFromTable(w);
 376
 377         if (w)
 378         {
 379             XtDestroyWidget(w);
 380         }
 381
 382         m_mainWidget = (WXWidget) 0;
 383
 384         // Only if we're _really_ a canvas (not a dialog box/panel)
 385         if (m_scrolledWindow)
 386         {
 387             wxDeleteWindowFromTable((Widget) m_scrolledWindow);
 388         }
 389
 390         UnmanageAndDestroy(m_hScrollBar);
 391         UnmanageAndDestroy(m_vScrollBar);
 392         UnmanageAndDestroy(m_scrolledWindow);
 393
 394         if (m_borderWidget)
 395         {
 396             XtDestroyWidget ((Widget) m_borderWidget);
 397             m_borderWidget = (WXWidget) 0;
 398         }
 399     }
 400
 401     // Destroy the window
 402     if (GetMainWidget())
 403     {
 404         // If this line (XtDestroyWidget) causes a crash, you may comment it out.
 405         // Child widgets will get destroyed automatically when a frame
 406         // or dialog is destroyed, but before that you may get some memory
 407         // leaks and potential layout problems if you delete and then add
 408         // child windows.
 409         XtDestroyWidget((Widget) GetMainWidget());
 410         SetMainWidget((WXWidget) NULL);
 411     }
 412 }
 413
 414 // ----------------------------------------------------------------------------
 415 // scrollbar management
 416 // ----------------------------------------------------------------------------
 417
 418 // Helper function
 419 void wxWindow::CreateScrollbar(int orientation)
 420 {
 421     wxCHECK_RET( m_drawingArea, "this window can't have scrollbars" );
 422
 423     XtVaSetValues((Widget) m_scrolledWindow, XmNresizePolicy, XmRESIZE_NONE, NULL);
 424
 425     // Add scrollbars if required
 426     if (orientation == wxHORIZONTAL)
 427     {
 428         Widget hScrollBar = XtVaCreateManagedWidget ("hsb",
 429             xmScrollBarWidgetClass, (Widget) m_scrolledWindow,
 430             XmNorientation, XmHORIZONTAL,
 431             NULL);
 432         //      XtAddCallback (hScrollBar, XmNvalueChangedCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 433         XtAddCallback (hScrollBar, XmNdragCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 434         XtAddCallback (hScrollBar, XmNincrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 435         XtAddCallback (hScrollBar, XmNdecrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 436         XtAddCallback (hScrollBar, XmNpageIncrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 437         XtAddCallback (hScrollBar, XmNpageDecrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 438         XtAddCallback (hScrollBar, XmNtoTopCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 439         XtAddCallback (hScrollBar, XmNtoBottomCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 440
 441         XtVaSetValues (hScrollBar,
 442             XmNincrement, 1,
 443             XmNvalue, 0,
 444             NULL);
 445
 446         m_hScrollBar = (WXWidget) hScrollBar;
 447
 448         wxColour backgroundColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE);
 449         DoChangeBackgroundColour(m_hScrollBar, backgroundColour, TRUE);
 450
 451         XtRealizeWidget(hScrollBar);
 452
 453         XtVaSetValues((Widget) m_scrolledWindow,
 454             XmNhorizontalScrollBar, (Widget) m_hScrollBar,
 455             NULL);
 456
 457         m_hScroll = TRUE;
 458     }
 459
 460     if (orientation == wxVERTICAL)
 461     {
 462         Widget vScrollBar = XtVaCreateManagedWidget ("vsb",
 463             xmScrollBarWidgetClass, (Widget) m_scrolledWindow,
 464             XmNorientation, XmVERTICAL,
 465             NULL);
 466         //      XtAddCallback (vScrollBar, XmNvalueChangedCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 467         XtAddCallback (vScrollBar, XmNdragCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 468         XtAddCallback (vScrollBar, XmNincrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 469         XtAddCallback (vScrollBar, XmNdecrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 470         XtAddCallback (vScrollBar, XmNpageIncrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 471         XtAddCallback (vScrollBar, XmNpageDecrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 472         XtAddCallback (vScrollBar, XmNtoTopCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 473         XtAddCallback (vScrollBar, XmNtoBottomCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 474
 475         XtVaSetValues (vScrollBar,
 476             XmNincrement, 1,
 477             XmNvalue, 0,
 478             NULL);
 479
 480         m_vScrollBar = (WXWidget) vScrollBar;
 481         wxColour backgroundColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE);
 482         DoChangeBackgroundColour(m_vScrollBar, backgroundColour, TRUE);
 483
 484         XtRealizeWidget(vScrollBar);
 485
 486         XtVaSetValues((Widget) m_scrolledWindow,
 487             XmNverticalScrollBar, (Widget) m_vScrollBar,
 488             NULL);
 489
 490         m_vScroll = TRUE;
 491     }
 492
 493     XtVaSetValues((Widget) m_scrolledWindow, XmNresizePolicy, XmRESIZE_ANY, NULL);
 494 }
 495
 496 void wxWindow::DestroyScrollbar(int orientation)
 497 {
 498     wxCHECK_RET( m_drawingArea, "this window can't have scrollbars" );
 499
 500     XtVaSetValues((Widget) m_scrolledWindow, XmNresizePolicy, XmRESIZE_NONE, NULL);
 501     // Add scrollbars if required
 502     if (orientation == wxHORIZONTAL)
 503     {
 504         if (m_hScrollBar)
 505         {
 506             XtDestroyWidget((Widget) m_hScrollBar);
 507         }
 508         m_hScrollBar = (WXWidget) 0;
 509         m_hScroll = FALSE;
 510
 511         XtVaSetValues((Widget) m_scrolledWindow,
 512             XmNhorizontalScrollBar, (Widget) 0,
 513             NULL);
 514
 515     }
 516
 517     if (orientation == wxVERTICAL)
 518     {
 519         if (m_vScrollBar)
 520         {
 521             XtDestroyWidget((Widget) m_vScrollBar);
 522         }
 523         m_vScrollBar = (WXWidget) 0;
 524         m_vScroll = TRUE;
 525
 526         XtVaSetValues((Widget) m_scrolledWindow,
 527             XmNverticalScrollBar, (Widget) 0,
 528             NULL);
 529
 530     }
 531     XtVaSetValues((Widget) m_scrolledWindow, XmNresizePolicy, XmRESIZE_ANY, NULL);
 532 }
 533
 534 // ---------------------------------------------------------------------------
 535 // basic operations
 536 // ---------------------------------------------------------------------------
 537
 538 void wxWindow::SetFocus()
 539 {
 540     Widget wMain = (Widget) GetMainWidget();
 541     XmProcessTraversal(wMain, XmTRAVERSE_CURRENT);
 542     XmProcessTraversal((Widget) GetMainWidget(), XmTRAVERSE_CURRENT);
 543 }
 544
 545 // Get the window with the focus
 546 wxWindow *wxWindow::FindFocus()
 547 {
 548     // TODO Problems:
 549     // (1) Can there be multiple focussed widgets in an application?
 550     // In which case we need to find the top-level window that's
 551     // currently active.
 552     // (2) The widget with the focus may not be in the widget table
 553     // depending on which widgets I put in the table
 554     wxWindow *winFocus = (wxWindow *)NULL;
 555     for ( wxWindowList::Node *node = wxTopLevelWindows.GetFirst();
 556           node;
 557           node = node->GetNext() )
 558     {
 559         wxWindow *win = node->GetData();
 560
 561         Widget w = XmGetFocusWidget ((Widget) win->GetTopWidget());
 562
 563         if (w != (Widget) NULL)
 564         {
 565             winFocus = wxGetWindowFromTable(w);
 566             if ( winFocus )
 567                 break;
 568         }
 569     }
 570
 571     return winFocus;
 572 }
 573
 574 void wxWindow::Enable(bool enable)
 575 {
 576     if ( !wxWindowBase::Enable(enable) )
 577         return FALSE;
 578
 579     Widget wMain = GetMainWidget();
 580     if ( wMain )
 581     {
 582         XtSetSensitive(wMain, enable);
 583         XmUpdateDisplay(wMain);
 584     }
 585
 586     return TRUE;
 587 }
 588
 589 bool wxWindow::Show(bool show)
 590 {
 591     if ( !wxWindowBase::Show(show) )
 592         return FALSE;
 593
 594     if (m_borderWidget || m_scrolledWindow)
 595     {
 596         MapOrUnmap(m_drawingArea, show);
 597         MapOrUnmap(m_borderWidget ? m_borderWidget : m_scrolledWindow, show);
 598     }
 599     else
 600     {
 601         if ( !MapOrUnmap(GetTopWidget(), show) )
 602             MapOrUnmap(GetMainWidget(), show);
 603     }
 604
 605 #if 0
 606     Window xwin = (Window) GetXWindow();
 607     Display *xdisp = (Display*) GetXDisplay();
 608     if (show)
 609         XMapWindow(xdisp, xwin);
 610     else
 611         XUnmapWindow(xdisp, xwin);
 612 #endif
 613
 614     return TRUE;
 615 }
 616
 617 // Raise the window to the top of the Z order
 618 void wxWindow::Raise()
 619 {
 620     Widget wTop = (Widget) GetTopWidget();
 621     Window window = XtWindow(wTop);
 622     XRaiseWindow(XtDisplay(wTop), window);
 623 }
 624
 625 // Lower the window to the bottom of the Z order
 626 void wxWindow::Lower()
 627 {
 628     Widget wTop = (Widget) GetTopWidget();
 629     Window window = XtWindow(wTop);
 630     XLowerWindow(XtDisplay(wTop), window);
 631 }
 632
 633 void wxWindow::SetTitle( const wxString& title)
 634 {
 635     SetWindowText(GetHwnd(), title.c_str());
 636 }
 637
 638 wxString wxWindow::GetTitle() const
 639 {
 640     return wxGetWindowText(GetHWND());
 641 }
 642
 643 void wxWindow::CaptureMouse()
 644 {
 645     if ( m_winCaptured )
 646         return;
 647
 648     Widget wMain = GetMainWidget();
 649     if ( wMain )
 650         XtAddGrab(wMain, TRUE, FALSE);
 651
 652     m_winCaptured = TRUE;
 653 }
 654
 655 void wxWindow::ReleaseMouse()
 656 {
 657     if ( !m_winCaptured )
 658         return;
 659
 660     Widget wMain = GetMainWidget();
 661     if ( wMain )
 662         XtRemoveGrab(wMain);
 663
 664     m_winCaptured = FALSE;
 665 }
 666
 667 bool wxWindow::SetFont(const wxFont& font)
 668 {
 669     if ( !wxWindowBase::SetFont(font) )
 670     {
 671         // nothing to do
 672         return FALSE;
 673     }
 674
 675     ChangeFont();
 676
 677     return TRUE;
 678 }
 679
 680 bool wxWindow::SetCursor(const wxCursor& cursor)
 681 {
 682     if ( !wxWindowBase::SetCursor(cursor) )
 683     {
 684         // no change
 685         return FALSE;
 686     }
 687
 688     wxASSERT_MSG( m_cursor.Ok(),
 689                   _T("cursor must be valid after call to the base version"));
 690
 691     WXDisplay *dpy = GetXDisplay();
 692     WXCursor x_cursor = m_cursor.GetXCursor(dpy);
 693
 694     Widget w = (Widget) GetMainWidget();
 695     Window win = XtWindow(w);
 696     XDefineCursor((Display*) dpy, win, (Cursor) x_cursor);
 697 }
 698
 699 // Coordinates relative to the window
 700 void wxWindow::WarpPointer (int x, int y)
 701 {
 702     Widget wClient = (Widget)GetClientWidget();
 703
 704     XWarpPointer(XtDisplay(wClient), None, XtWindow(wClient), 0, 0, 0, 0, x, y);
 705 }
 706
 707 // ---------------------------------------------------------------------------
 708 // scrolling stuff
 709 // ---------------------------------------------------------------------------
 710
 711 int wxWindow::GetScrollPos(int orient) const
 712 {
 713     if (orient == wxHORIZONTAL)
 714         return m_scrollPosX;
 715     else
 716         return m_scrollPosY;
 717
 718 #if 0
 719     Widget scrollBar = (Widget) ((orient == wxHORIZONTAL) ? m_hScrollBar : m_vScrollBar);
 720     if (scrollBar)
 721     {
 722         int pos;
 723         XtVaGetValues(scrollBar, XmNvalue, &pos, NULL);
 724         return pos;
 725     }
 726     else
 727         return 0;
 728 #endif // 0
 729 }
 730
 731 // This now returns the whole range, not just the number of positions that we
 732 // can scroll.
 733 int wxWindow::GetScrollRange(int orient) const
 734 {
 735     Widget scrollBar = (Widget)GetScrollbar(orient);
 736     wxCHECK_MSG( scrollBar, 0, "no such scrollbar" );
 737
 738     int range;
 739     XtVaGetValues(scrollBar, XmNmaximum, &range, NULL);
 740     return range;
 741 }
 742
 743 int wxWindow::GetScrollThumb(int orient) const
 744 {
 745     Widget scrollBar = (Widget)GetScrollbar(orient);
 746     wxCHECK_MSG( scrollBar, 0, "no such scrollbar" );
 747
 748     int thumb;
 749     XtVaGetValues(scrollBar, XmNsliderSize, &thumb, NULL);
 750     return thumb;
 751 }
 752
 753 void wxWindow::SetScrollPos(int orient, int pos, bool WXUNUSED(refresh))
 754 {
 755     Widget scrollBar = (Widget)GetScrollbar(orient);
 756
 757     if ( scrollBar )
 758     {
 759         XtVaSetValues (scrollBar, XmNvalue, pos, NULL);
 760     }
 761
 762     SetInternalScrollPos(orient, pos);
 763 }
 764
 765 // New function that will replace some of the above.
 766 void wxWindow::SetScrollbar(int orient, int pos, int thumbVisible,
 767                             int range, bool WXUNUSED(refresh))
 768 {
 769     int oldW, oldH;
 770     GetSize(& oldW, & oldH);
 771
 772     if (range == 0)
 773         range = 1;
 774     if (thumbVisible == 0)
 775         thumbVisible = 1;
 776
 777     if (thumbVisible > range)
 778         thumbVisible = range;
 779
 780     // Save the old state to see if it changed
 781     WXWidget oldScrollBar = GetScrollbar(orient);
 782
 783     if (orient == wxHORIZONTAL)
 784     {
 785         if (thumbVisible == range)
 786         {
 787             if (m_hScrollBar)
 788                 DestroyScrollbar(wxHORIZONTAL);
 789         }
 790         else
 791         {
 792             if (!m_hScrollBar)
 793                 CreateScrollbar(wxHORIZONTAL);
 794         }
 795     }
 796     if (orient == wxVERTICAL)
 797     {
 798         if (thumbVisible == range)
 799         {
 800             if (m_vScrollBar)
 801                 DestroyScrollbar(wxVERTICAL);
 802         }
 803         else
 804         {
 805             if (!m_vScrollBar)
 806                 CreateScrollbar(wxVERTICAL);
 807         }
 808     }
 809     WXWidget newScrollBar =  GetScrollbar(orient);
 810
 811     if (oldScrollBar != newScrollBar)
 812     {
 813         // This is important! Without it, scrollbars misbehave badly.
 814         XtUnrealizeWidget((Widget) m_scrolledWindow);
 815         XmScrolledWindowSetAreas ((Widget) m_scrolledWindow, (Widget) m_hScrollBar, (Widget) m_vScrollBar, (Widget) m_drawingArea);
 816         XtRealizeWidget((Widget) m_scrolledWindow);
 817         XtManageChild((Widget) m_scrolledWindow);
 818     }
 819
 820     if (newScrollBar)
 821     {
 822         XtVaSetValues((Widget) newScrollBar,
 823         XmNvalue, pos,
 824         XmNminimum, 0,
 825         XmNmaximum, range,
 826         XmNsliderSize, thumbVisible,
 827         NULL);
 828     }
 829
 830     SetInternalScrollPos(orient, pos);
 831
 832     int newW, newH;
 833     GetSize(& newW, & newH);
 834
 835     // Adjusting scrollbars can resize the canvas accidentally
 836     if (newW != oldW || newH != oldH)
 837         SetSize(-1, -1, oldW, oldH);
 838 }
 839
 840 // Does a physical scroll
 841 void wxWindow::ScrollWindow(int dx, int dy, const wxRect *rect)
 842 {
 843     int x, y, w, h;
 844     if (rect)
 845     {
 846         // Use specified rectangle
 847         x = rect->x; y = rect->y; w = rect->width; h = rect->height;
 848     }
 849     else
 850     {
 851         // Use whole client area
 852         x = 0; y = 0;
 853         GetClientSize(& w, & h);
 854     }
 855
 856     int x1 = (dx >= 0) ? x : x - dx;
 857     int y1 = (dy >= 0) ? y : y - dy;
 858     int w1 = w - abs(dx);
 859     int h1 = h - abs(dy);
 860     int x2 = (dx >= 0) ? x + dx : x;
 861     int y2 = (dy >= 0) ? y + dy : y;
 862
 863     wxClientDC dc(this);
 864
 865     dc.SetLogicalFunction (wxCOPY);
 866
 867     Widget widget = (Widget) GetMainWidget();
 868     Window window = XtWindow(widget);
 869     Display* display = XtDisplay(widget);
 870
 871     XCopyArea(display, window, window, (GC) dc.GetGC(),
 872               x1, y1, w1, h1, x2, y2);
 873
 874     dc.SetAutoSetting(TRUE);
 875     wxBrush brush(GetBackgroundColour(), wxSOLID);
 876     dc.SetBrush(brush); // FIXME: needed?
 877
 878     // We'll add rectangles to the list of update rectangles according to which
 879     // bits we've exposed.
 880     wxList updateRects;
 881
 882     if (dx > 0)
 883     {
 884         wxRect *rect = new wxRect;
 885         rect->x = x;
 886         rect->y = y;
 887         rect->width = dx;
 888         rect->height = h;
 889
 890         XFillRectangle(display, window,
 891             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
 892
 893         rect->x = rect->x;
 894         rect->y = rect->y;
 895         rect->width = rect->width;
 896         rect->height = rect->height;
 897
 898         updateRects.Append((wxObject*) rect);
 899     }
 900     else if (dx < 0)
 901     {
 902         wxRect *rect = new wxRect;
 903
 904         rect->x = x + w + dx;
 905         rect->y = y;
 906         rect->width = -dx;
 907         rect->height = h;
 908
 909         XFillRectangle(display, window,
 910             (GC) dc.GetGC(), rect->x, rect->y, rect->width,
 911             rect->height);
 912
 913         rect->x = rect->x;
 914         rect->y = rect->y;
 915         rect->width = rect->width;
 916         rect->height = rect->height;
 917
 918         updateRects.Append((wxObject*) rect);
 919     }
 920     if (dy > 0)
 921     {
 922         wxRect *rect = new wxRect;
 923
 924         rect->x = x;
 925         rect->y = y;
 926         rect->width = w;
 927         rect->height = dy;
 928
 929         XFillRectangle(display, window,
 930             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
 931
 932         rect->x = rect->x;
 933         rect->y = rect->y;
 934         rect->width = rect->width;
 935         rect->height = rect->height;
 936
 937         updateRects.Append((wxObject*) rect);
 938     }
 939     else if (dy < 0)
 940     {
 941         wxRect *rect = new wxRect;
 942
 943         rect->x = x;
 944         rect->y = y + h + dy;
 945         rect->width = w;
 946         rect->height = -dy;
 947
 948         XFillRectangle(display, window,
 949             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
 950
 951         rect->x = rect->x;
 952         rect->y = rect->y;
 953         rect->width = rect->width;
 954         rect->height = rect->height;
 955
 956         updateRects.Append((wxObject*) rect);
 957     }
 958     dc.SetBrush(wxNullBrush);
 959
 960     // Now send expose events
 961
 962     wxNode* node = updateRects.First();
 963     while (node)
 964     {
 965         wxRect* rect = (wxRect*) node->Data();
 966         XExposeEvent event;
 967
 968         event.type = Expose;
 969         event.display = display;
 970         event.send_event = True;
 971         event.window = window;
 972
 973         event.x = rect->x;
 974         event.y = rect->y;
 975         event.width = rect->width;
 976         event.height = rect->height;
 977
 978         event.count = 0;
 979
 980         XSendEvent(display, window, False, ExposureMask, (XEvent *)&event);
 981
 982         node = node->Next();
 983
 984     }
 985
 986     // Delete the update rects
 987     node = updateRects.First();
 988     while (node)
 989     {
 990         wxRect* rect = (wxRect*) node->Data();
 991         delete rect;
 992         node = node->Next();
 993     }
 994
 995     XmUpdateDisplay((Widget) GetMainWidget());
 996 }
 997
 998 // ---------------------------------------------------------------------------
 999 // drag and drop
1000 // ---------------------------------------------------------------------------
1001
1002 #if wxUSE_DRAG_AND_DROP
1003
1004 void wxWindow::SetDropTarget(wxDropTarget * WXUNUSED(pDropTarget))
1005 {
1006     // TODO
1007 }
1008
1009 #endif
1010
1011 // Old style file-manager drag&drop
1012 void wxWindow::DragAcceptFiles(bool WXUNUSED(accept))
1013 {
1014     // TODO
1015 }
1016
1017 // ----------------------------------------------------------------------------
1018 // tooltips
1019 // ----------------------------------------------------------------------------
1020
1021 #if wxUSE_TOOLTIPS
1022
1023 void wxWindow::DoSetToolTip(wxToolTip * WXUNUSED(tooltip))
1024 {
1025     // TODO
1026 }
1027
1028 #endif // wxUSE_TOOLTIPS
1029
1030 // ---------------------------------------------------------------------------
1031 // moving and resizing
1032 // ---------------------------------------------------------------------------
1033
1034 bool wxWindow::PreResize()
1035 {
1036     return TRUE;
1037 }
1038
1039 // Get total size
1040 void wxWindow::GetSize(int *x, int *y) const
1041 {
1042     if (m_drawingArea)
1043     {
1044         CanvasGetSize(x, y);
1045         return;
1046     }
1047
1048     Widget widget = (Widget) GetTopWidget();
1049     Dimension xx, yy;
1050     XtVaGetValues(widget, XmNwidth, &xx, XmNheight, &yy, NULL);
1051     *x = xx; *y = yy;
1052 }
1053
1054 void wxWindow::GetPosition(int *x, int *y) const
1055 {
1056     if (m_drawingArea)
1057     {
1058         CanvasGetPosition(x, y);
1059         return;
1060     }
1061     Widget widget = (Widget) GetTopWidget();
1062     Position xx, yy;
1063     XtVaGetValues(widget, XmNx, &xx, XmNy, &yy, NULL);
1064
1065     // We may be faking the client origin. So a window that's really at (0, 30)
1066     // may appear (to wxWin apps) to be at (0, 0).
1067     if (GetParent())
1068     {
1069         wxPoint pt(GetParent()->GetClientAreaOrigin());
1070         xx -= pt.x;
1071         yy -= pt.y;
1072     }
1073
1074     *x = xx; *y = yy;
1075 }
1076
1077 void wxWindow::ScreenToClient(int *x, int *y) const
1078 {
1079     Widget widget = (Widget) GetClientWidget();
1080     Display *display = XtDisplay((Widget) GetMainWidget());
1081     Window rootWindow = RootWindowOfScreen(XtScreen(widget));
1082     Window thisWindow = XtWindow(widget);
1083
1084     Window childWindow;
1085     int xx = *x;
1086     int yy = *y;
1087     XTranslateCoordinates(display, rootWindow, thisWindow, xx, yy, x, y, &childWindow);
1088 }
1089
1090 void wxWindow::ClientToScreen(int *x, int *y) const
1091 {
1092     Widget widget = (Widget) GetClientWidget();
1093     Display *display = XtDisplay(widget);
1094     Window rootWindow = RootWindowOfScreen(XtScreen(widget));
1095     Window thisWindow = XtWindow(widget);
1096
1097     Window childWindow;
1098     int xx = *x;
1099     int yy = *y;
1100     XTranslateCoordinates(display, thisWindow, rootWindow, xx, yy, x, y, &childWindow);
1101 }
1102
1103
1104 // Get size *available for subwindows* i.e. excluding menu bar etc.
1105 void wxWindow::GetClientSize(int *x, int *y) const
1106 {
1107     Widget widget = (Widget) GetClientWidget();
1108     Dimension xx, yy;
1109     XtVaGetValues(widget, XmNwidth, &xx, XmNheight, &yy, NULL);
1110     *x = xx; *y = yy;
1111 }
1112
1113 void wxWindow::DoSetSize(int x, int y, int width, int height, int sizeFlags)
1114 {
1115     // A bit of optimization to help sort out the flickers.
1116     int oldX, oldY, oldW, oldH;
1117     GetSize(& oldW, & oldH);
1118     GetPosition(& oldX, & oldY);
1119
1120     bool useOldPos = FALSE;
1121     bool useOldSize = FALSE;
1122
1123     if ((x == -1) && (x == -1) && ((sizeFlags & wxSIZE_ALLOW_MINUS_ONE) == 0))
1124         useOldPos = TRUE;
1125     else if (x == oldX && y == oldY)
1126         useOldPos = TRUE;
1127
1128     if ((width == -1) && (height == -1))
1129         useOldSize = TRUE;
1130     else if (width == oldW && height == oldH)
1131         useOldSize = TRUE;
1132
1133     if (!wxNoOptimize::CanOptimize())
1134     {
1135         useOldSize = FALSE; useOldPos = FALSE;
1136     }
1137
1138     if (useOldPos && useOldSize)
1139         return;
1140
1141     if (m_drawingArea)
1142     {
1143         CanvasSetSize(x, y, width, height, sizeFlags);
1144         return;
1145     }
1146     Widget widget = (Widget) GetTopWidget();
1147     if (!widget)
1148         return;
1149
1150     bool managed = XtIsManaged( widget );
1151     if (managed)
1152         XtUnmanageChild(widget);
1153
1154     int xx = x; int yy = y;
1155     AdjustForParentClientOrigin(xx, yy, sizeFlags);
1156
1157     if (!useOldPos)
1158     {
1159         if (x > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
1160             XtVaSetValues(widget, XmNx, xx, NULL);
1161         if (y > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
1162             XtVaSetValues(widget, XmNy, yy, NULL);
1163     }
1164     if (!useOldSize)
1165     {
1166         if (width > -1)
1167             XtVaSetValues(widget, XmNwidth, width, NULL);
1168         if (height > -1)
1169             XtVaSetValues(widget, XmNheight, height, NULL);
1170     }
1171
1172     if (managed)
1173         XtManageChild(widget);
1174
1175     // How about this bit. Maybe we don't need to generate size events
1176     // all the time -- they'll be generated when the window is sized anyway.
1177 #if 0
1178     wxSizeEvent sizeEvent(wxSize(width, height), GetId());
1179     sizeEvent.SetEventObject(this);
1180
1181       GetEventHandler()->ProcessEvent(sizeEvent);
1182 #endif // 0
1183 }
1184
1185 void wxWindow::DoSetClientSize(int width, int height)
1186 {
1187     if (m_drawingArea)
1188     {
1189         CanvasSetClientSize(width, height);
1190         return;
1191     }
1192
1193     Widget widget = (Widget) GetTopWidget();
1194
1195     if (width > -1)
1196         XtVaSetValues(widget, XmNwidth, width, NULL);
1197     if (height > -1)
1198         XtVaSetValues(widget, XmNheight, height, NULL);
1199
1200     wxSizeEvent sizeEvent(wxSize(width, height), GetId());
1201     sizeEvent.SetEventObject(this);
1202
1203     GetEventHandler()->ProcessEvent(sizeEvent);
1204 }
1205
1206 // For implementation purposes - sometimes decorations make the client area
1207 // smaller
1208 wxPoint wxWindow::GetClientAreaOrigin() const
1209 {
1210     return wxPoint(0, 0);
1211 }
1212
1213 // Makes an adjustment to the window position (for example, a frame that has
1214 // a toolbar that it manages itself).
1215 void wxWindow::AdjustForParentClientOrigin(int& x, int& y, int sizeFlags)
1216 {
1217     if (((sizeFlags & wxSIZE_NO_ADJUSTMENTS) == 0) && GetParent())
1218     {
1219         wxPoint pt(GetParent()->GetClientAreaOrigin());
1220         x += pt.x; y += pt.y;
1221     }
1222 }
1223
1224 void wxWindow::SetSizeHints(int minW, int minH, int maxW, int maxH, int incW, int incH)
1225 {
1226     m_minWidth = minW;
1227     m_minHeight = minH;
1228     m_maxWidth = maxW;
1229     m_maxHeight = maxH;
1230
1231     wxFrame *frame = wxDynamicCast(this, wxFrame);
1232     if ( !frame )
1233     {
1234         // TODO what about dialogs?
1235         return;
1236     }
1237
1238     Widget widget = (Widget) frame->GetShellWidget();
1239
1240     if (minW > -1)
1241         XtVaSetValues(widget, XmNminWidth, minW, NULL);
1242     if (minH > -1)
1243         XtVaSetValues(widget, XmNminHeight, minH, NULL);
1244     if (maxW > -1)
1245         XtVaSetValues(widget, XmNmaxWidth, maxW, NULL);
1246     if (maxH > -1)
1247         XtVaSetValues(widget, XmNmaxHeight, maxH, NULL);
1248     if (incW > -1)
1249         XtVaSetValues(widget, XmNwidthInc, incW, NULL);
1250     if (incH > -1)
1251         XtVaSetValues(widget, XmNheightInc, incH, NULL);
1252 }
1253
1254 // ---------------------------------------------------------------------------
1255 // text metrics
1256 // ---------------------------------------------------------------------------
1257
1258 int wxWindow::GetCharHeight() const
1259 {
1260     wxCHECK_MSG( m_windowFont.Ok(), 0, "valid window font needed" );
1261
1262     WXFontStructPtr pFontStruct = m_windowFont.GetFontStruct(1.0, GetXDisplay());
1263
1264     int direction, ascent, descent;
1265     XCharStruct overall;
1266     XTextExtents ((XFontStruct*) pFontStruct, "x", 1, &direction, &ascent,
1267         &descent, &overall);
1268
1269     //  return (overall.ascent + overall.descent);
1270     return (ascent + descent);
1271 }
1272
1273 int wxWindow::GetCharWidth() const
1274 {
1275     wxCHECK_MSG( m_windowFont.Ok(), 0, "valid window font needed" );
1276
1277     WXFontStructPtr pFontStruct = m_windowFont.GetFontStruct(1.0, GetXDisplay());
1278
1279     int direction, ascent, descent;
1280     XCharStruct overall;
1281     XTextExtents ((XFontStruct*) pFontStruct, "x", 1, &direction, &ascent,
1282         &descent, &overall);
1283
1284     return overall.width;
1285 }
1286
1287 void wxWindow::GetTextExtent(const wxString& string,
1288                              int *x, int *y,
1289                              int *descent, int *externalLeading,
1290                              const wxFont *theFont) const
1291 {
1292     wxFont *fontToUse = (wxFont *)theFont;
1293     if (!fontToUse)
1294         fontToUse = (wxFont *) & m_windowFont;
1295
1296     wxCHECK_RET( fontToUse.Ok(), "valid window font needed" );
1297
1298     WXFontStructPtr pFontStruct = theFont->GetFontStruct(1.0, GetXDisplay());
1299
1300     int direction, ascent, descent2;
1301     XCharStruct overall;
1302     int slen;
1303
1304 #if 0
1305     if (use16)
1306         XTextExtents16((XFontStruct*) pFontStruct, (XChar2b *) (char*) (const char*) string, slen, &direction,
1307         &ascent, &descent2, &overall);
1308 #endif
1309
1310     XTextExtents((XFontStruct*) pFontStruct, string, slen,
1311                  &direction, &ascent, &descent2, &overall);
1312
1313     if ( x )
1314         *x = (overall.width);
1315     if ( y )
1316         *y = (ascent + descent2);
1317     if (descent)
1318         *descent = descent2;
1319     if (externalLeading)
1320         *externalLeading = 0;
1321 }
1322
1323 // ----------------------------------------------------------------------------
1324 // painting
1325 // ----------------------------------------------------------------------------
1326
1327 void wxWindow::Refresh(bool eraseBack, const wxRect *rect)
1328 {
1329     m_needsRefresh = TRUE;
1330     Display *display = XtDisplay((Widget) GetMainWidget());
1331     Window thisWindow = XtWindow((Widget) GetMainWidget());
1332
1333     XExposeEvent dummyEvent;
1334     int width, height;
1335     GetSize(&width, &height);
1336
1337     dummyEvent.type = Expose;
1338     dummyEvent.display = display;
1339     dummyEvent.send_event = True;
1340     dummyEvent.window = thisWindow;
1341     if (rect)
1342     {
1343         dummyEvent.x = rect->x;
1344         dummyEvent.y = rect->y;
1345         dummyEvent.width = rect->width;
1346         dummyEvent.height = rect->height;
1347     }
1348     else
1349     {
1350         dummyEvent.x = 0;
1351         dummyEvent.y = 0;
1352         dummyEvent.width = width;
1353         dummyEvent.height = height;
1354     }
1355     dummyEvent.count = 0;
1356
1357     if (eraseBack)
1358     {
1359         wxClientDC dc(this);
1360         wxBrush backgroundBrush(GetBackgroundColour(), wxSOLID);
1361         dc.SetBackground(backgroundBrush);
1362         if (rect)
1363             dc.Clear(*rect);
1364         else
1365             dc.Clear();
1366     }
1367
1368     XSendEvent(display, thisWindow, False, ExposureMask, (XEvent *)&dummyEvent);
1369 }
1370
1371 void wxWindow::Clear()
1372 {
1373     wxClientDC dc(this);
1374     wxBrush brush(GetBackgroundColour(), wxSOLID);
1375     dc.SetBackground(brush);
1376     dc.Clear();
1377 }
1378
1379 void wxWindow::ClearUpdateRects()
1380 {
1381     wxNode* node = m_updateRects.First();
1382     while (node)
1383     {
1384         wxRect* rect = (wxRect*) node->Data();
1385         delete rect;
1386         node = node->Next();
1387     }
1388     m_updateRects.Clear();
1389 }
1390
1391 void wxWindow::DoPaint()
1392 {
1393     //TODO : make a temporary gc so we can do the XCopyArea below
1394     if (m_backingPixmap && !m_needsRefresh)
1395     {
1396       wxPaintDC dc(this);
1397
1398       GC tempGC = (GC) dc.GetBackingGC();
1399
1400       Widget widget = (Widget) GetMainWidget();
1401
1402       int scrollPosX = 0;
1403       int scrollPosY = 0;
1404
1405       // We have to test whether it's a wxScrolledWindow (hack!) because
1406       // otherwise we don't know how many pixels have been scrolled. We might
1407       // solve this in the future by defining virtual wxWindow functions to get
1408       // the scroll position in pixels. Or, each kind of scrolled window has to
1409       // implement backing stores itself, using generic wxWindows code.
1410       wxScrolledWindow* scrolledWindow = wxDynamicCast(this, wxScrolledWindow);
1411       if ( scrolledWindow )
1412       {
1413           int x, y;
1414           scrolledWindow->CalcScrolledPosition(0, 0, &x, &y);
1415
1416           scrollPosX = - x;
1417           scrollPosY = - y;
1418       }
1419
1420       // TODO: This could be optimized further by only copying the areas in the
1421       //       current update region.
1422
1423       // Only blit the part visible in the client area. The backing pixmap
1424       // always starts at 0, 0 but we may be looking at only a portion of it.
1425       wxSize clientArea = GetClientSize();
1426       int toBlitX = m_pixmapWidth - scrollPosX;
1427       int toBlitY = m_pixmapHeight - scrollPosY;
1428
1429       // Copy whichever is samller, the amount of pixmap we have to copy,
1430       // or the size of the client area.
1431       toBlitX = wxMin(toBlitX, clientArea.x);
1432       toBlitY = wxMin(toBlitY, clientArea.y);
1433
1434       // Make sure we're not negative
1435       toBlitX = wxMax(0, toBlitX);
1436       toBlitY = wxMax(0, toBlitY);
1437
1438       XCopyArea
1439       (
1440        XtDisplay(widget),
1441        (Pixmap) m_backingPixmap,
1442        XtWindow (widget),
1443        tempGC,
1444        scrollPosX, scrollPosY, // Start at the scroll position
1445        toBlitX, toBlitY,       // How much of the pixmap to copy
1446        0, 0                    // Destination
1447       );
1448     }
1449     else
1450     {
1451         // Set an erase event first
1452         wxEraseEvent eraseEvent(GetId());
1453         eraseEvent.SetEventObject(this);
1454         GetEventHandler()->ProcessEvent(eraseEvent);
1455
1456         wxPaintEvent event(GetId());
1457         event.SetEventObject(this);
1458         GetEventHandler()->ProcessEvent(event);
1459
1460         m_needsRefresh = FALSE;
1461     }
1462 }
1463
1464 // ----------------------------------------------------------------------------
1465 // event handlers
1466 // ----------------------------------------------------------------------------
1467
1468 // Responds to colour changes: passes event on to children.
1469 void wxWindow::OnSysColourChanged(wxSysColourChangedEvent& event)
1470 {
1471     wxWindowList::Node *node = GetChildren().GetFirst();
1472     while ( node )
1473     {
1474         // Only propagate to non-top-level windows
1475         wxWindow *win = node->GetData();
1476         if ( win->GetParent() )
1477         {
1478             wxSysColourChangedEvent event2;
1479             event.m_eventObject = win;
1480             win->GetEventHandler()->ProcessEvent(event2);
1481         }
1482
1483         node = node->GetNext();
1484     }
1485 }
1486
1487 void wxWindow::OnIdle(wxIdleEvent& event)
1488 {
1489     // This calls the UI-update mechanism (querying windows for
1490     // menu/toolbar/control state information)
1491     UpdateWindowUI();
1492 }
1493
1494 // ----------------------------------------------------------------------------
1495 // accelerators
1496 // ----------------------------------------------------------------------------
1497
1498 bool wxWindow::ProcessAccelerator(wxKeyEvent& event)
1499 {
1500     if (!m_acceleratorTable.Ok())
1501         return FALSE;
1502
1503     int count = m_acceleratorTable.GetCount();
1504     wxAcceleratorEntry* entries = m_acceleratorTable.GetEntries();
1505     int i;
1506     for (i = 0; i < count; i++)
1507     {
1508         wxAcceleratorEntry* entry = & (entries[i]);
1509         if (entry->MatchesEvent(event))
1510         {
1511             // Bingo, we have a match. Now find a control that matches the entry
1512             // command id.
1513
1514             // Need to go up to the top of the window hierarchy, since it might
1515             // be e.g. a menu item
1516             wxWindow* parent = this;
1517             while ( parent && !parent->IsTopLevel() )
1518                 parent = parent->GetParent();
1519
1520             if (!parent)
1521                 return FALSE;
1522
1523             wxFrame* frame = wxDynamicCast(parent, wxFrame);
1524             if ( frame )
1525             {
1526                 // Try for a menu command
1527                 if (frame->GetMenuBar())
1528                 {
1529                     wxMenuItem* item = frame->GetMenuBar()->FindItemForId(entry->GetCommand());
1530                     if (item)
1531                     {
1532                         wxCommandEvent commandEvent(wxEVT_COMMAND_MENU_SELECTED, entry->GetCommand());
1533                         commandEvent.SetEventObject(frame);
1534
1535                         // If ProcessEvent returns TRUE (it was handled), then
1536                         // the calling code will skip the event handling.
1537                         return frame->GetEventHandler()->ProcessEvent(commandEvent);
1538                     }
1539                 }
1540             }
1541
1542             // Find a child matching the command id
1543             wxWindow* child = parent->FindWindow(entry->GetCommand());
1544
1545             // No such child
1546             if (!child)
1547                 return FALSE;
1548
1549             // Now we process those kinds of windows that we can.
1550             // For now, only buttons.
1551             if ( wxDynamicCast(child, wxButton) )
1552             {
1553                 wxCommandEvent commandEvent (wxEVT_COMMAND_BUTTON_CLICKED, child->GetId());
1554                 commandEvent.SetEventObject(child);
1555                 return child->GetEventHandler()->ProcessEvent(commandEvent);
1556             }
1557
1558             return FALSE;
1559         } // matches event
1560     }// for
1561
1562     // We didn't match the key event against an accelerator.
1563     return FALSE;
1564 }
1565
1566 // ============================================================================
1567 // Motif-specific stuff from here on
1568 // ============================================================================
1569
1570 // ----------------------------------------------------------------------------
1571 // function which maintain the global hash table mapping Widgets to wxWindows
1572 // ----------------------------------------------------------------------------
1573
1574 bool wxAddWindowToTable(Widget w, wxWindow *win)
1575 {
1576     wxWindow *oldItem = NULL;
1577     if ((oldItem = (wxWindow *)gs_wxWidgetHashTable->Get ((long) w)))
1578     {
1579         wxLogDebug("Widget table clash: new widget is %ld, %s",
1580                    (long)w, win->GetClassInfo()->GetClassName());
1581         return FALSE;
1582     }
1583
1584     gs_wxWidgetHashTable->Put((long) w, win);
1585
1586     return TRUE;
1587 }
1588
1589 wxWindow *wxGetWindowFromTable(Widget w)
1590 {
1591     return (wxWindow *)gs_wxWidgetHashTable->Get((long) w);
1592 }
1593
1594 void wxDeleteWindowFromTable(Widget w)
1595 {
1596     gs_wxWidgetHashTable->Delete((long)w);
1597 }
1598
1599 // ----------------------------------------------------------------------------
1600 // add/remove window from the table
1601 // ----------------------------------------------------------------------------
1602
1603 // Add to hash table, add event handler
1604 bool wxWindow::AttachWidget (wxWindow* parent, WXWidget mainWidget,
1605                              WXWidget formWidget, int x, int y, int width, int height)
1606 {
1607     wxAddWindowToTable((Widget) mainWidget, this);
1608     if (CanAddEventHandler())
1609     {
1610         XtAddEventHandler((Widget) mainWidget,
1611             ButtonPressMask | ButtonReleaseMask | PointerMotionMask, // | KeyPressMask,
1612             False,
1613             wxPanelItemEventHandler,
1614             (XtPointer) this);
1615     }
1616
1617     if (!formWidget)
1618     {
1619         XtTranslations ptr;
1620         XtOverrideTranslations ((Widget) mainWidget,
1621             ptr = XtParseTranslationTable ("<Configure>: resize()"));
1622         XtFree ((char *) ptr);
1623     }
1624
1625     // Some widgets have a parent form widget, e.g. wxRadioBox
1626     if (formWidget)
1627     {
1628         if (!wxAddWindowToTable((Widget) formWidget, this))
1629             return FALSE;
1630
1631         XtTranslations ptr;
1632         XtOverrideTranslations ((Widget) formWidget,
1633             ptr = XtParseTranslationTable ("<Configure>: resize()"));
1634         XtFree ((char *) ptr);
1635     }
1636
1637     if (x == -1)
1638         x = 0;
1639     if (y == -1)
1640         y = 0;
1641     SetSize (x, y, width, height);
1642
1643     return TRUE;
1644 }
1645
1646 // Remove event handler, remove from hash table
1647 bool wxWindow::DetachWidget(WXWidget widget)
1648 {
1649     if (CanAddEventHandler())
1650     {
1651         XtRemoveEventHandler((Widget) widget,
1652             ButtonPressMask | ButtonReleaseMask | PointerMotionMask, // | KeyPressMask,
1653             False,
1654             wxPanelItemEventHandler,
1655             (XtPointer)this);
1656     }
1657
1658     wxDeleteWindowFromTable((Widget) widget);
1659     return TRUE;
1660 }
1661
1662 // ----------------------------------------------------------------------------
1663 // Motif-specific accessors
1664 // ----------------------------------------------------------------------------
1665
1666 // Get the underlying X window
1667 WXWindow wxWindow::GetXWindow() const
1668 {
1669     Widget wMain = GetMainWidget();
1670     if ( wMain )
1671         return (WXWindow) XtWindow(wMain);
1672     else
1673         return (WXWindow) 0;
1674 }
1675
1676 // Get the underlying X display
1677 WXDisplay *wxWindow::GetXDisplay() const
1678 {
1679     Widget wMain = GetMainWidget();
1680     if ( wMain )
1681         return (WXDisplay*) XtDisplay(wMain);
1682     else
1683         return (WXDisplay*) NULL;
1684 }
1685
1686 WXWidget wxWindow::GetMainWidget() const
1687 {
1688     if (m_drawingArea)
1689         return m_drawingArea;
1690     else
1691         return m_mainWidget;
1692 }
1693
1694 WXWidget wxWindow::GetClientWidget() const
1695 {
1696     if (m_drawingArea != (WXWidget) 0)
1697         return m_drawingArea;
1698     else
1699         return GetMainWidget();
1700 }
1701
1702 WXWidget wxWindow::GetTopWidget() const
1703 {
1704     return GetMainWidget();
1705 }
1706
1707 WXWidget wxWindow::GetLabelWidget() const
1708 {
1709     return GetMainWidget();
1710 }
1711
1712 // ----------------------------------------------------------------------------
1713 // Motif callbacks
1714 // ----------------------------------------------------------------------------
1715
1716 // All widgets should have this as their resize proc.
1717 // OnSize sent to wxWindow via client data.
1718 void wxWidgetResizeProc(Widget w, XConfigureEvent *event, String args[], int *num_args)
1719 {
1720     wxWindow *win = wxGetWindowFromTable(w);
1721     if (!win)
1722         return;
1723
1724     if (win->PreResize())
1725     {
1726         int width, height;
1727         win->GetSize(&width, &height);
1728         wxSizeEvent sizeEvent(wxSize(width, height), win->GetId());
1729         sizeEvent.SetEventObject(win);
1730         win->GetEventHandler()->ProcessEvent(sizeEvent);
1731     }
1732 }
1733
1734 static void wxCanvasRepaintProc(Widget drawingArea,
1735                                 XtPointer clientData,
1736                                 XmDrawingAreaCallbackStruct * cbs)
1737 {
1738     if (!wxGetWindowFromTable(drawingArea))
1739         return;
1740
1741     XEvent * event = cbs->event;
1742     wxWindow * win = (wxWindow *) clientData;
1743     Display * display = (Display *) win->GetXDisplay();
1744
1745     switch (event->type)
1746     {
1747     case Expose:
1748         {
1749             wxRect* rect = new wxRect(event->xexpose.x, event->xexpose.y,
1750                 event->xexpose.width, event->xexpose.height);
1751
1752             win->m_updateRects.Append((wxObject*) rect);
1753
1754             if (event -> xexpose.count == 0)
1755             {
1756 #if 0
1757                 wxPaintEvent event(win->GetId());
1758                 event.SetEventObject(win);
1759                 win->GetEventHandler()->ProcessEvent(event);
1760 #endif // 0
1761
1762                 win->DoPaint();
1763                 win->ClearUpdateRects();
1764             }
1765             break;
1766         }
1767     }
1768 }
1769
1770 // Unable to deal with Enter/Leave without a separate EventHandler (Motif 1.1.4)
1771 static void wxCanvasEnterLeave(Widget drawingArea,
1772                                XtPointer clientData,
1773                                XCrossingEvent * event)
1774 {
1775     XmDrawingAreaCallbackStruct cbs;
1776     XEvent ev;
1777
1778     ((XCrossingEvent &) ev) = *event;
1779
1780     cbs.reason = XmCR_INPUT;
1781     cbs.event = &ev;
1782
1783     wxCanvasInputEvent(drawingArea, (XtPointer) NULL, &cbs);
1784 }
1785
1786 // Fix to make it work under Motif 1.0 (!)
1787 static void wxCanvasMotionEvent (Widget drawingArea, XButtonEvent * event)
1788 {
1789 #if XmVersion <= 1000
1790     XmDrawingAreaCallbackStruct cbs;
1791     XEvent ev;
1792
1793     ev = *((XEvent *) event);
1794     cbs.reason = XmCR_INPUT;
1795     cbs.event = &ev;
1796
1797     wxCanvasInputEvent (drawingArea, (XtPointer) NULL, &cbs);
1798 #endif // XmVersion <= 1000
1799 }
1800
1801 static void wxCanvasInputEvent(Widget drawingArea,
1802                                XtPointer data,
1803                                XmDrawingAreaCallbackStruct * cbs)
1804 {
1805     wxWindow *canvas = wxGetWindowFromTable(drawingArea);
1806     XEvent local_event;
1807
1808     if (canvas==NULL)
1809         return;
1810
1811     if (cbs->reason != XmCR_INPUT)
1812         return;
1813
1814     local_event = *(cbs->event);    // We must keep a copy!
1815
1816     switch (local_event.xany.type)
1817     {
1818     case EnterNotify:
1819     case LeaveNotify:
1820     case ButtonPress:
1821     case ButtonRelease:
1822     case MotionNotify:
1823         {
1824             wxEventType eventType = wxEVT_NULL;
1825
1826             if (local_event.xany.type == EnterNotify)
1827             {
1828                 //if (local_event.xcrossing.mode!=NotifyNormal)
1829                 //  return ; // Ignore grab events
1830                 eventType = wxEVT_ENTER_WINDOW;
1831                 //            canvas->GetEventHandler()->OnSetFocus();
1832             }
1833             else if (local_event.xany.type == LeaveNotify)
1834             {
1835                 //if (local_event.xcrossing.mode!=NotifyNormal)
1836                 //  return ; // Ignore grab events
1837                 eventType = wxEVT_LEAVE_WINDOW;
1838                 //            canvas->GetEventHandler()->OnKillFocus();
1839             }
1840             else if (local_event.xany.type == MotionNotify)
1841             {
1842                 eventType = wxEVT_MOTION;
1843                 if (local_event.xmotion.is_hint == NotifyHint)
1844                 {
1845                     Window root, child;
1846                     Display *dpy = XtDisplay (drawingArea);
1847
1848                     XQueryPointer (dpy, XtWindow (drawingArea),
1849                         &root, &child,
1850                         &local_event.xmotion.x_root,
1851                         &local_event.xmotion.y_root,
1852                         &local_event.xmotion.x,
1853                         &local_event.xmotion.y,
1854                         &local_event.xmotion.state);
1855                 }
1856                 else
1857                 {
1858                 }
1859             }
1860
1861             else if (local_event.xany.type == ButtonPress)
1862             {
1863                 if (local_event.xbutton.button == Button1)
1864                 {
1865                     eventType = wxEVT_LEFT_DOWN;
1866                     canvas->m_button1Pressed = TRUE;
1867                 }
1868                 else if (local_event.xbutton.button == Button2)
1869                 {
1870                     eventType = wxEVT_MIDDLE_DOWN;
1871                     canvas->m_button2Pressed = TRUE;
1872                 }
1873                 else if (local_event.xbutton.button == Button3)
1874                 {
1875                     eventType = wxEVT_RIGHT_DOWN;
1876                     canvas->m_button3Pressed = TRUE;
1877                 }
1878             }
1879             else if (local_event.xany.type == ButtonRelease)
1880             {
1881                 if (local_event.xbutton.button == Button1)
1882                 {
1883                     eventType = wxEVT_LEFT_UP;
1884                     canvas->m_button1Pressed = FALSE;
1885                 }
1886                 else if (local_event.xbutton.button == Button2)
1887                 {
1888                     eventType = wxEVT_MIDDLE_UP;
1889                     canvas->m_button2Pressed = FALSE;
1890                 }
1891                 else if (local_event.xbutton.button == Button3)
1892                 {
1893                     eventType = wxEVT_RIGHT_UP;
1894                     canvas->m_button3Pressed = FALSE;
1895                 }
1896             }
1897
1898             wxMouseEvent wxevent (eventType);
1899             wxevent.m_eventHandle = (char *) &local_event;
1900
1901             wxevent.m_leftDown = ((eventType == wxEVT_LEFT_DOWN)
1902                 || (event_left_is_down (&local_event)
1903                 && (eventType != wxEVT_LEFT_UP)));
1904             wxevent.m_middleDown = ((eventType == wxEVT_MIDDLE_DOWN)
1905                 || (event_middle_is_down (&local_event)
1906                 && (eventType != wxEVT_MIDDLE_UP)));
1907             wxevent.m_rightDown = ((eventType == wxEVT_RIGHT_DOWN)
1908                 || (event_right_is_down (&local_event)
1909                 && (eventType != wxEVT_RIGHT_UP)));
1910
1911             wxevent.m_shiftDown = local_event.xbutton.state & ShiftMask;
1912             wxevent.m_controlDown = local_event.xbutton.state & ControlMask;
1913             wxevent.m_altDown = local_event.xbutton.state & Mod3Mask;
1914             wxevent.m_metaDown = local_event.xbutton.state & Mod1Mask;
1915             wxevent.SetTimestamp(local_event.xbutton.time);
1916
1917             // Now check if we need to translate this event into a double click
1918             if (TRUE) // canvas->doubleClickAllowed)
1919             {
1920                 if (wxevent.ButtonDown())
1921                 {
1922                     long dclickTime = XtGetMultiClickTime((Display*) wxGetDisplay());
1923
1924                     // get button and time-stamp
1925                     int button = 0;
1926                     if      (wxevent.LeftDown())   button = 1;
1927                     else if (wxevent.MiddleDown()) button = 2;
1928                     else if (wxevent.RightDown())  button = 3;
1929                     long ts = wxevent.GetTimestamp();
1930                     // check, if single or double click
1931                     if (canvas->m_lastButton && canvas->m_lastButton==button && (ts - canvas->m_lastTS) < dclickTime)
1932                     {
1933                         // I have a dclick
1934                         canvas->m_lastButton = 0;
1935                         switch ( eventType )
1936                         {
1937                         case wxEVT_LEFT_DOWN:
1938                             wxevent.SetEventType(wxEVT_LEFT_DCLICK);
1939                             break;
1940                         case wxEVT_MIDDLE_DOWN:
1941                             wxevent.SetEventType(wxEVT_MIDDLE_DCLICK);
1942                             break;
1943                         case wxEVT_RIGHT_DOWN:
1944                             wxevent.SetEventType(wxEVT_RIGHT_DCLICK);
1945                             break;
1946
1947                         default :
1948                             break;
1949                         }
1950
1951                     }
1952                     else
1953                     {
1954                         // not fast enough or different button
1955                         canvas->m_lastTS     = ts;
1956                         canvas->m_lastButton = button;
1957                     }
1958                 }
1959             }
1960
1961             wxevent.SetId(canvas->GetId());
1962             wxevent.SetEventObject(canvas);
1963             wxevent.m_x = local_event.xbutton.x;
1964             wxevent.m_y = local_event.xbutton.y;
1965             canvas->GetEventHandler()->ProcessEvent (wxevent);
1966 #if 0
1967             if (eventType == wxEVT_ENTER_WINDOW ||
1968                     eventType == wxEVT_LEAVE_WINDOW ||
1969                     eventType == wxEVT_MOTION
1970                )
1971                 return;
1972 #endif // 0
1973             break;
1974       }
1975     case KeyPress:
1976         {
1977             KeySym keySym;
1978 #if 0
1979             XComposeStatus compose;
1980             (void) XLookupString ((XKeyEvent *) & local_event, wxBuffer, 20, &keySym, &compose);
1981 #endif // 0
1982
1983             (void) XLookupString ((XKeyEvent *) & local_event, wxBuffer, 20, &keySym, NULL);
1984             int id = wxCharCodeXToWX (keySym);
1985
1986             wxEventType eventType = wxEVT_CHAR;
1987
1988             wxKeyEvent event (eventType);
1989
1990             if (local_event.xkey.state & ShiftMask)
1991                 event.m_shiftDown = TRUE;
1992             if (local_event.xkey.state & ControlMask)
1993                 event.m_controlDown = TRUE;
1994             if (local_event.xkey.state & Mod3Mask)
1995                 event.m_altDown = TRUE;
1996             if (local_event.xkey.state & Mod1Mask)
1997                 event.m_metaDown = TRUE;
1998             event.SetEventObject(canvas);
1999             event.m_keyCode = id;
2000             event.SetTimestamp(local_event.xkey.time);
2001
2002             if (id > -1)
2003             {
2004                 // Implement wxFrame::OnCharHook by checking ancestor.
2005                 wxWindow *parent = canvas->GetParent();
2006                 while (parent && !parent->IsKindOf(CLASSINFO(wxFrame)))
2007                     parent = parent->GetParent();
2008
2009                 if (parent)
2010                 {
2011                     event.SetEventType(wxEVT_CHAR_HOOK);
2012                     if (parent->GetEventHandler()->ProcessEvent(event))
2013                         return;
2014                 }
2015
2016                 // For simplicity, OnKeyDown is the same as OnChar
2017                 // TODO: filter modifier key presses from OnChar
2018                 event.SetEventType(wxEVT_KEY_DOWN);
2019
2020                 // Only process OnChar if OnKeyDown didn't swallow it
2021                 if (!canvas->GetEventHandler()->ProcessEvent (event))
2022                 {
2023                   event.SetEventType(wxEVT_CHAR);
2024                   canvas->GetEventHandler()->ProcessEvent (event);
2025         }
2026             }
2027             break;
2028         }
2029     case KeyRelease:
2030         {
2031             KeySym keySym;
2032             (void) XLookupString ((XKeyEvent *) & local_event, wxBuffer, 20, &keySym, NULL);
2033             int id = wxCharCodeXToWX (keySym);
2034
2035             wxKeyEvent event (wxEVT_KEY_UP);
2036
2037             if (local_event.xkey.state & ShiftMask)
2038                 event.m_shiftDown = TRUE;
2039             if (local_event.xkey.state & ControlMask)
2040                 event.m_controlDown = TRUE;
2041             if (local_event.xkey.state & Mod3Mask)
2042                 event.m_altDown = TRUE;
2043             if (local_event.xkey.state & Mod1Mask)
2044                 event.m_metaDown = TRUE;
2045             event.SetEventObject(canvas);
2046             event.m_keyCode = id;
2047             event.SetTimestamp(local_event.xkey.time);
2048
2049             if (id > -1)
2050             {
2051                 canvas->GetEventHandler()->ProcessEvent (event);
2052             }
2053             break;
2054         }
2055     case FocusIn:
2056         {
2057             if (local_event.xfocus.detail != NotifyPointer)
2058             {
2059                 wxFocusEvent event(wxEVT_SET_FOCUS, canvas->GetId());
2060                 event.SetEventObject(canvas);
2061                 canvas->GetEventHandler()->ProcessEvent(event);
2062             }
2063             break;
2064         }
2065     case FocusOut:
2066         {
2067             if (local_event.xfocus.detail != NotifyPointer)
2068             {
2069                 wxFocusEvent event(wxEVT_KILL_FOCUS, canvas->GetId());
2070                 event.SetEventObject(canvas);
2071                 canvas->GetEventHandler()->ProcessEvent(event);
2072             }
2073             break;
2074         }
2075     default:
2076         break;
2077     }
2078 }
2079
2080 static void wxPanelItemEventHandler(Widget    wid,
2081                                     XtPointer client_data,
2082                                     XEvent*   event,
2083                                     Boolean  *continueToDispatch)
2084 {
2085     // Widget can be a label or the actual widget.
2086
2087     wxWindow *window = wxGetWindowFromTable(drawingArea);
2088     if (window)
2089     {
2090         wxMouseEvent wxevent(0);
2091         if (wxTranslateMouseEvent(wxevent, window, wid, event))
2092         {
2093             window->GetEventHandler()->ProcessEvent(wxevent);
2094         }
2095     }
2096
2097     // TODO: probably the key to allowing default behaviour to happen. Say we
2098     // set a m_doDefault flag to FALSE at the start of this function. Then in
2099     // e.g. wxWindow::OnMouseEvent we can call Default() which sets this flag to
2100     // TRUE, indicating that default processing can happen. Thus, behaviour can
2101     // appear to be overridden just by adding an event handler and not calling
2102     // wxWindow::OnWhatever. ALSO, maybe we can use this instead of the current
2103     // way of handling drawing area events, to simplify things.
2104     *continueToDispatch = True;
2105 }
2106
2107 static void wxScrollBarCallback(Widget scrollbar,
2108                                 XtPointer clientData,
2109                                 XmScaleCallbackStruct *cbs)
2110 {
2111     Widget scrolledWindow = XtParent (scrollbar);
2112     wxWindow *win = wxGetWindowFromTable(scrollbar);
2113     int orientation = (int) clientData;
2114
2115     wxEventType eventType = wxEVT_NULL;
2116     switch (cbs->reason)
2117     {
2118     case XmCR_INCREMENT:
2119         {
2120             eventType = wxEVT_SCROLL_LINEDOWN;
2121             break;
2122         }
2123     case XmCR_DECREMENT:
2124         {
2125             eventType = wxEVT_SCROLL_LINEUP;
2126             break;
2127         }
2128     case XmCR_DRAG:
2129         {
2130             eventType = wxEVT_SCROLL_THUMBTRACK;
2131             break;
2132         }
2133     case XmCR_VALUE_CHANGED:
2134         {
2135             // TODO: Should this be intercepted too, or will it cause
2136             // duplicate events?
2137             eventType = wxEVT_SCROLL_THUMBTRACK;
2138             break;
2139         }
2140     case XmCR_PAGE_INCREMENT:
2141         {
2142             eventType = wxEVT_SCROLL_PAGEDOWN;
2143             break;
2144         }
2145     case XmCR_PAGE_DECREMENT:
2146         {
2147             eventType = wxEVT_SCROLL_PAGEUP;
2148             break;
2149         }
2150     case XmCR_TO_TOP:
2151         {
2152             eventType = wxEVT_SCROLL_TOP;
2153             break;
2154         }
2155     case XmCR_TO_BOTTOM:
2156         {
2157             eventType = wxEVT_SCROLL_BOTTOM;
2158             break;
2159         }
2160     default:
2161         {
2162             // Should never get here
2163             wxFAIL_MSG("Unknown scroll event.");
2164             break;
2165         }
2166     }
2167
2168     wxScrollEvent event(eventType, win->GetId());
2169     event.SetEventObject(win);
2170     event.SetPosition(cbs->value);
2171     event.SetOrientation( (orientation == XmHORIZONTAL) ? wxHORIZONTAL : wxVERTICAL );
2172
2173     win->GetEventHandler()->ProcessEvent(event);
2174 }
2175
2176 // For repainting arbitrary windows
2177 void wxUniversalRepaintProc(Widget w, XtPointer WXUNUSED(c_data), XEvent *event, char *)
2178 {
2179     Window window;
2180     Display *display;
2181
2182     wxWindow* win = wxGetWindowFromTable(w);
2183     if (!win)
2184         return;
2185
2186     switch(event -> type)
2187     {
2188     case Expose :
2189         {
2190             window = (Window) win -> GetXWindow();
2191             display = (Display *) win -> GetXDisplay();
2192
2193             wxRect* rect = new wxRect(event->xexpose.x, event->xexpose.y,
2194                 event->xexpose.width, event->xexpose.height);
2195             win->m_updateRects.Append((wxObject*) rect);
2196
2197             if (event -> xexpose.count == 0)
2198             {
2199                 win->DoPaint();
2200
2201                 win->ClearUpdateRects();
2202             }
2203             break;
2204         }
2205     }
2206 }
2207
2208 // ----------------------------------------------------------------------------
2209 // CanvaseXXXSize() functions
2210 // ----------------------------------------------------------------------------
2211
2212 // SetSize, but as per old wxCanvas (with drawing widget etc.)
2213 void wxWindow::CanvasSetSize (int x, int y, int w, int h, int sizeFlags)
2214 {
2215     // A bit of optimization to help sort out the flickers.
2216     int oldX, oldY, oldW, oldH;
2217     GetSize(& oldW, & oldH);
2218     GetPosition(& oldX, & oldY);
2219
2220     bool useOldPos = FALSE;
2221     bool useOldSize = FALSE;
2222
2223     if ((x == -1) && (x == -1) && ((sizeFlags & wxSIZE_ALLOW_MINUS_ONE) == 0))
2224         useOldPos = TRUE;
2225     else if (x == oldX && y == oldY)
2226         useOldPos = TRUE;
2227
2228     if ((w == -1) && (h == -1))
2229         useOldSize = TRUE;
2230     else if (w == oldW && h == oldH)
2231         useOldSize = TRUE;
2232
2233     if (!wxNoOptimize::CanOptimize())
2234     {
2235         useOldSize = FALSE; useOldPos = FALSE;
2236     }
2237
2238     if (useOldPos && useOldSize)
2239         return;
2240
2241     Widget drawingArea = (Widget) m_drawingArea;
2242     bool managed = XtIsManaged(m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow);
2243
2244     if (managed)
2245         XtUnmanageChild (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow);
2246     XtVaSetValues((Widget) m_drawingArea, XmNresizePolicy, XmRESIZE_ANY, NULL);
2247
2248     int xx = x; int yy = y;
2249     AdjustForParentClientOrigin(xx, yy, sizeFlags);
2250
2251     if (!useOldPos)
2252     {
2253         if (x > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2254         {
2255             XtVaSetValues (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow,
2256                 XmNx, xx, NULL);
2257         }
2258
2259         if (y > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2260         {
2261             XtVaSetValues (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow,
2262                 XmNy, yy, NULL);
2263         }
2264     }
2265
2266     if (!useOldSize)
2267     {
2268
2269         if (w > -1)
2270         {
2271             if (m_borderWidget)
2272             {
2273                 XtVaSetValues ((Widget) m_borderWidget, XmNwidth, w, NULL);
2274                 short thick, margin;
2275                 XtVaGetValues ((Widget) m_borderWidget,
2276                     XmNshadowThickness, &thick,
2277                     XmNmarginWidth, &margin,
2278                     NULL);
2279                 w -= 2 * (thick + margin);
2280             }
2281
2282             XtVaSetValues ((Widget) m_scrolledWindow, XmNwidth, w, NULL);
2283
2284             Dimension spacing;
2285             Widget sbar;
2286             XtVaGetValues ((Widget) m_scrolledWindow,
2287                 XmNspacing, &spacing,
2288                 XmNverticalScrollBar, &sbar,
2289                 NULL);
2290             Dimension wsbar;
2291             if (sbar)
2292                 XtVaGetValues (sbar, XmNwidth, &wsbar, NULL);
2293             else
2294                 wsbar = 0;
2295
2296             w -= (spacing + wsbar);
2297
2298             //      XtVaSetValues ((Widget) m_drawingArea, XmNwidth, w, NULL);
2299         }
2300         if (h > -1)
2301         {
2302             if (m_borderWidget)
2303             {
2304                 XtVaSetValues ((Widget) m_borderWidget, XmNheight, h, NULL);
2305                 short thick, margin;
2306                 XtVaGetValues ((Widget) m_borderWidget,
2307                     XmNshadowThickness, &thick,
2308                     XmNmarginHeight, &margin,
2309                     NULL);
2310                 h -= 2 * (thick + margin);
2311             }
2312
2313             XtVaSetValues ((Widget) m_scrolledWindow, XmNheight, h, NULL);
2314
2315             Dimension spacing;
2316             Widget sbar;
2317             XtVaGetValues ((Widget) m_scrolledWindow,
2318                 XmNspacing, &spacing,
2319                 XmNhorizontalScrollBar, &sbar,
2320                 NULL);
2321             Dimension wsbar;
2322             if (sbar)
2323                 XtVaGetValues (sbar, XmNheight, &wsbar, NULL);
2324             else
2325                 wsbar = 0;
2326
2327             h -= (spacing + wsbar);
2328
2329             //      XtVaSetValues ((Widget) m_drawingArea, XmNheight, h, NULL);
2330
2331         }
2332     }
2333
2334     if (managed)
2335         XtManageChild (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow);
2336     XtVaSetValues((Widget) m_drawingArea, XmNresizePolicy, XmRESIZE_NONE, NULL);
2337
2338 #if 0
2339     int ww, hh;
2340     GetClientSize (&ww, &hh);
2341     wxSizeEvent sizeEvent(wxSize(ww, hh), GetId());
2342     sizeEvent.SetEventObject(this);
2343
2344       GetEventHandler()->ProcessEvent(sizeEvent);
2345 #endif // 0
2346 }
2347
2348 void wxWindow::CanvasSetClientSize (int w, int h)
2349 {
2350     Widget drawingArea = (Widget) m_drawingArea;
2351
2352     XtVaSetValues((Widget) m_drawingArea, XmNresizePolicy, XmRESIZE_ANY, NULL);
2353
2354     if (w > -1)
2355         XtVaSetValues ((Widget) m_drawingArea, XmNwidth, w, NULL);
2356     if (h > -1)
2357         XtVaSetValues ((Widget) m_drawingArea, XmNheight, h, NULL);
2358
2359 #if 0
2360     // TODO: is this necessary?
2361     allowRepainting = FALSE;
2362
2363     XSync (XtDisplay (drawingArea), FALSE);
2364     XEvent event;
2365     while (XtAppPending (wxTheApp->appContext))
2366     {
2367         XFlush (XtDisplay (drawingArea));
2368         XtAppNextEvent (wxTheApp->appContext, &event);
2369         XtDispatchEvent (&event);
2370     }
2371 #endif // 0
2372
2373     XtVaSetValues((Widget) m_drawingArea, XmNresizePolicy, XmRESIZE_NONE, NULL);
2374
2375 #if 0
2376        allowRepainting = TRUE;
2377        DoRefresh ();
2378
2379        wxSizeEvent sizeEvent(wxSize(w, h), GetId());
2380        sizeEvent.SetEventObject(this);
2381
2382        GetEventHandler()->ProcessEvent(sizeEvent);
2383 #endif // 0
2384 }
2385
2386 void wxWindow::CanvasGetClientSize (int *w, int *h) const
2387 {
2388     // Must return the same thing that was set via SetClientSize
2389     Dimension xx, yy;
2390     XtVaGetValues ((Widget) m_drawingArea, XmNwidth, &xx, XmNheight, &yy, NULL);
2391     *w = xx;
2392     *h = yy;
2393 }
2394
2395 void wxWindow::CanvasGetSize (int *w, int *h) const
2396 {
2397     Dimension xx, yy;
2398     if ((Widget) m_borderWidget)
2399         XtVaGetValues ((Widget) m_borderWidget, XmNwidth, &xx, XmNheight, &yy, NULL);
2400     else if ((Widget) m_scrolledWindow)
2401         XtVaGetValues ((Widget) m_scrolledWindow, XmNwidth, &xx, XmNheight, &yy, NULL);
2402     else
2403         XtVaGetValues ((Widget) m_drawingArea, XmNwidth, &xx, XmNheight, &yy, NULL);
2404
2405     *w = xx;
2406     *h = yy;
2407 }
2408
2409 void wxWindow::CanvasGetPosition (int *x, int *y) const
2410 {
2411     Position xx, yy;
2412     XtVaGetValues (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow, XmNx, &xx, XmNy, &yy, NULL);
2413
2414     // We may be faking the client origin.
2415     // So a window that's really at (0, 30) may appear
2416     // (to wxWin apps) to be at (0, 0).
2417     if (GetParent())
2418     {
2419         wxPoint pt(GetParent()->GetClientAreaOrigin());
2420         xx -= pt.x;
2421         yy -= pt.y;
2422     }
2423
2424     *x = xx;
2425     *y = yy;
2426 }
2427
2428 // ----------------------------------------------------------------------------
2429 // TranslateXXXEvent() functions
2430 // ----------------------------------------------------------------------------
2431
2432 bool wxTranslateMouseEvent(wxMouseEvent& wxevent, wxWindow *win, Widget widget, XEvent *xevent)
2433 {
2434     switch (xevent->xany.type)
2435     {
2436     case EnterNotify:
2437     case LeaveNotify:
2438     case ButtonPress:
2439     case ButtonRelease:
2440     case MotionNotify:
2441         {
2442             wxEventType eventType = wxEVT_NULL;
2443
2444             if (xevent->xany.type == LeaveNotify)
2445             {
2446                 win->m_button1Pressed = FALSE;
2447                 win->m_button2Pressed = FALSE;
2448                 win->m_button3Pressed = FALSE;
2449                 return FALSE;
2450             }
2451             else if (xevent->xany.type == MotionNotify)
2452             {
2453                 eventType = wxEVT_MOTION;
2454             }
2455             else if (xevent->xany.type == ButtonPress)
2456             {
2457                 if (xevent->xbutton.button == Button1)
2458                 {
2459                     eventType = wxEVT_LEFT_DOWN;
2460                     win->m_button1Pressed = TRUE;
2461                 }
2462                 else if (xevent->xbutton.button == Button2)
2463                 {
2464                     eventType = wxEVT_MIDDLE_DOWN;
2465                     win->m_button2Pressed = TRUE;
2466                 }
2467                 else if (xevent->xbutton.button == Button3)
2468                 {
2469                     eventType = wxEVT_RIGHT_DOWN;
2470                     win->m_button3Pressed = TRUE;
2471                 }
2472             }
2473             else if (xevent->xany.type == ButtonRelease)
2474             {
2475                 if (xevent->xbutton.button == Button1)
2476                 {
2477                     eventType = wxEVT_LEFT_UP;
2478                     win->m_button1Pressed = FALSE;
2479                 }
2480                 else if (xevent->xbutton.button == Button2)
2481                 {
2482                     eventType = wxEVT_MIDDLE_UP;
2483                     win->m_button2Pressed = FALSE;
2484                 }
2485                 else if (xevent->xbutton.button == Button3)
2486                 {
2487                     eventType = wxEVT_RIGHT_UP;
2488                     win->m_button3Pressed = FALSE;
2489                 }
2490                 else return FALSE;
2491             }
2492             else return FALSE;
2493
2494             wxevent.m_eventHandle = (char *)xevent;
2495             wxevent.SetEventType(eventType);
2496
2497             Position x1, y1;
2498             XtVaGetValues(widget, XmNx, &x1, XmNy, &y1, NULL);
2499
2500             int x2, y2;
2501             win->GetPosition(&x2, &y2);
2502
2503             // The button x/y must be translated to wxWindows
2504             // window space - the widget might be a label or button,
2505             // within a form.
2506             int dx = 0;
2507             int dy = 0;
2508             if (widget != (Widget)win->GetMainWidget())
2509             {
2510                 dx = x1;
2511                 dy = y1;
2512             }
2513
2514             wxevent.m_x = xevent->xbutton.x + dx;
2515             wxevent.m_y = xevent->xbutton.y + dy;
2516
2517             wxevent.m_leftDown = ((eventType == wxEVT_LEFT_DOWN)
2518                 || (event_left_is_down (xevent)
2519                 && (eventType != wxEVT_LEFT_UP)));
2520             wxevent.m_middleDown = ((eventType == wxEVT_MIDDLE_DOWN)
2521                 || (event_middle_is_down (xevent)
2522                 && (eventType != wxEVT_MIDDLE_UP)));
2523             wxevent.m_rightDown = ((eventType == wxEVT_RIGHT_DOWN)
2524                 || (event_right_is_down (xevent)
2525                 && (eventType != wxEVT_RIGHT_UP)));
2526
2527             wxevent.m_shiftDown = xevent->xbutton.state & ShiftMask;
2528             wxevent.m_controlDown = xevent->xbutton.state & ControlMask;
2529             return TRUE;
2530         }
2531     }
2532     return FALSE;
2533 }
2534
2535 bool wxTranslateKeyEvent(wxKeyEvent& wxevent, wxWindow *win, Widget widget, XEvent *xevent)
2536 {
2537     switch (xevent->xany.type)
2538     {
2539     case KeyPress:
2540         {
2541             char buf[20];
2542
2543             KeySym keySym;
2544 #if 0
2545             XComposeStatus compose;
2546             (void) XLookupString ((XKeyEvent *) xevent, buf, 20, &keySym, &compose);
2547 #endif // 0
2548             (void) XLookupString ((XKeyEvent *) xevent, buf, 20, &keySym, NULL);
2549             int id = wxCharCodeXToWX (keySym);
2550
2551             if (xevent->xkey.state & ShiftMask)
2552                 wxevent.m_shiftDown = TRUE;
2553             if (xevent->xkey.state & ControlMask)
2554                 wxevent.m_controlDown = TRUE;
2555             if (xevent->xkey.state & Mod3Mask)
2556                 wxevent.m_altDown = TRUE;
2557             if (xevent->xkey.state & Mod1Mask)
2558                 wxevent.m_metaDown = TRUE;
2559             wxevent.SetEventObject(win);
2560             wxevent.m_keyCode = id;
2561             wxevent.SetTimestamp(xevent->xkey.time);
2562
2563             wxevent.m_x = xevent->xbutton.x;
2564             wxevent.m_y = xevent->xbutton.y;
2565
2566             if (id > -1)
2567                 return TRUE;
2568             else
2569                 return FALSE;
2570             break;
2571         }
2572     default:
2573         break;
2574     }
2575     return FALSE;
2576 }
2577
2578 // ----------------------------------------------------------------------------
2579 // Colour stuff
2580 // ----------------------------------------------------------------------------
2581
2582 #define YAllocColor XAllocColor
2583 XColor g_itemColors[5];
2584 int wxComputeColours (Display *display, wxColour * back, wxColour * fore)
2585 {
2586     int result;
2587     static XmColorProc colorProc;
2588
2589     result = wxNO_COLORS;
2590
2591     if (back)
2592     {
2593         g_itemColors[0].red = (((long) back->Red ()) << 8);
2594         g_itemColors[0].green = (((long) back->Green ()) << 8);
2595         g_itemColors[0].blue = (((long) back->Blue ()) << 8);
2596         g_itemColors[0].flags = DoRed | DoGreen | DoBlue;
2597         if (colorProc == (XmColorProc) NULL)
2598         {
2599             // Get a ptr to the actual function
2600             colorProc = XmSetColorCalculation ((XmColorProc) NULL);
2601             // And set it back to motif.
2602             XmSetColorCalculation (colorProc);
2603         }
2604         (*colorProc) (&g_itemColors[wxBACK_INDEX],
2605             &g_itemColors[wxFORE_INDEX],
2606             &g_itemColors[wxSELE_INDEX],
2607             &g_itemColors[wxTOPS_INDEX],
2608             &g_itemColors[wxBOTS_INDEX]);
2609         result = wxBACK_COLORS;
2610     }
2611     if (fore)
2612     {
2613         g_itemColors[wxFORE_INDEX].red = (((long) fore->Red ()) << 8);
2614         g_itemColors[wxFORE_INDEX].green = (((long) fore->Green ()) << 8);
2615         g_itemColors[wxFORE_INDEX].blue = (((long) fore->Blue ()) << 8);
2616         g_itemColors[wxFORE_INDEX].flags = DoRed | DoGreen | DoBlue;
2617         if (result == wxNO_COLORS)
2618             result = wxFORE_COLORS;
2619     }
2620
2621     Display *dpy = display;
2622     Colormap cmap = (Colormap) wxTheApp->GetMainColormap((WXDisplay*) dpy);
2623
2624     if (back)
2625     {
2626         /* 5 Colours to allocate */
2627         for (int i = 0; i < 5; i++)
2628             if (!YAllocColor (dpy, cmap, &g_itemColors[i]))
2629                 result = wxNO_COLORS;
2630     }
2631     else if (fore)
2632     {
2633         /* Only 1 colour to allocate */
2634         if (!YAllocColor (dpy, cmap, &g_itemColors[wxFORE_INDEX]))
2635             result = wxNO_COLORS;
2636     }
2637
2638     return (result);
2639
2640 }
2641
2642 // Changes the foreground and background colours to be derived from the current
2643 // background colour. To change the foreground colour, you must call
2644 // SetForegroundColour explicitly.
2645 void wxWindow::ChangeBackgroundColour()
2646 {
2647     WXWidget mainWidget = GetMainWidget();
2648     if ( mainWidget )
2649         DoChangeBackgroundColour(mainWidget, m_backgroundColour);
2650
2651     // This not necessary
2652 #if 0
2653
2654     if (m_scrolledWindow && (GetMainWidget() != m_scrolledWindow))
2655     {
2656         DoChangeBackgroundColour(m_scrolledWindow, m_backgroundColour);
2657         // Have to set the scrollbar colours back since
2658         // the scrolled window seemed to change them
2659         wxColour backgroundColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE);
2660
2661         if (m_hScrollBar)
2662             DoChangeBackgroundColour(m_hScrollBar, backgroundColour);
2663         if (m_vScrollBar)
2664             DoChangeBackgroundColour(m_vScrollBar, backgroundColour);
2665     }
2666 #endif
2667 }
2668
2669 void wxWindow::ChangeForegroundColour()
2670 {
2671     WXWidget mainWidget = GetMainWidget();
2672     if ( mainWidget )
2673         DoChangeForegroundColour(mainWidget, m_foregroundColour);
2674     if ( m_scrolledWindow && mainWidget != m_scrolledWindow )
2675         DoChangeForegroundColour(m_scrolledWindow, m_foregroundColour);
2676 }
2677
2678 // Change a widget's foreground and background colours.
2679 void wxWindow::DoChangeForegroundColour(WXWidget widget, wxColour& foregroundColour)
2680 {
2681     // When should we specify the foreground, if it's calculated
2682     // by wxComputeColours?
2683     // Solution: say we start with the default (computed) foreground colour.
2684     // If we call SetForegroundColour explicitly for a control or window,
2685     // then the foreground is changed.
2686     // Therefore SetBackgroundColour computes the foreground colour, and
2687     // SetForegroundColour changes the foreground colour. The ordering is
2688     // important.
2689
2690     Widget w = (Widget)widget;
2691     XtVaSetValues(
2692                   w,
2693                   XmNforeground, foregroundColour.AllocColour(XtDisplay(w)),
2694                   NULL
2695                  );
2696 }
2697
2698 void wxWindow::DoChangeBackgroundColour(WXWidget widget, wxColour& backgroundColour, bool changeArmColour)
2699 {
2700     wxComputeColours (XtDisplay((Widget) widget), & backgroundColour,
2701         (wxColour*) NULL);
2702
2703     XtVaSetValues ((Widget) widget,
2704         XmNbackground, g_itemColors[wxBACK_INDEX].pixel,
2705         XmNtopShadowColor, g_itemColors[wxTOPS_INDEX].pixel,
2706         XmNbottomShadowColor, g_itemColors[wxBOTS_INDEX].pixel,
2707         XmNforeground, g_itemColors[wxFORE_INDEX].pixel,
2708         NULL);
2709
2710     if (changeArmColour)
2711         XtVaSetValues ((Widget) widget,
2712         XmNarmColor, g_itemColors[wxSELE_INDEX].pixel,
2713         NULL);
2714 }
2715
2716 void wxWindow::SetBackgroundColour(const wxColour& col)
2717 {
2718     m_backgroundColour = col;
2719     ChangeBackgroundColour();
2720 }
2721
2722 void wxWindow::SetForegroundColour(const wxColour& col)
2723 {
2724     m_foregroundColour = col;
2725     ChangeForegroundColour();
2726 }
2727
2728 void wxWindow::ChangeFont(bool keepOriginalSize)
2729 {
2730     // Note that this causes the widget to be resized back
2731     // to its original size! We therefore have to set the size
2732     // back again. TODO: a better way in Motif?
2733     Widget w = (Widget) GetLabelWidget(); // Usually the main widget
2734     if (w && m_windowFont.Ok())
2735     {
2736         int width, height, width1, height1;
2737         GetSize(& width, & height);
2738
2739         // lesstif 0.87 hangs here
2740 #ifndef LESSTIF_VERSION
2741         XtVaSetValues (w,
2742             XmNfontList, (XmFontList) m_windowFont.GetFontList(1.0, XtDisplay(w)),
2743             NULL);
2744 #endif
2745
2746         GetSize(& width1, & height1);
2747         if (keepOriginalSize && (width != width1 || height != height1))
2748         {
2749             SetSize(-1, -1, width, height);
2750         }
2751     }
2752 }
2753
2754 // ----------------------------------------------------------------------------
2755 // global functions
2756 // ----------------------------------------------------------------------------
2757
2758 wxWindow *wxGetActiveWindow()
2759 {
2760     // TODO
2761     return NULL;
2762 }
2763
2764 // ----------------------------------------------------------------------------
2765 // wxNoOptimize: switch off size optimization
2766 // ----------------------------------------------------------------------------
2767
2768 int wxNoOptimize::m_count = 0;
2769
2770 wxNoOptimize::wxNoOptimize()
2771 {
2772     m_count ++;
2773 }
2774
2775 wxNoOptimize::~wxNoOptimize()
2776 {
2777     m_count --;
2778 }
2779
2780 bool wxNoOptimize::CanOptimize()
2781 {
2782     return (m_count == 0);
2783 }
2784