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 #include "wx/module.h"
  40 #include "wx/menuitem.h"
  41 #include "wx/log.h"
  42
  43 #include "wx/listimpl.cpp"
  44
  45 #if  wxUSE_DRAG_AND_DROP
  46     #include "wx/dnd.h"
  47 #endif
  48
  49 #include <Xm/Xm.h>
  50
  51 #include <Xm/DrawingA.h>
  52 #include <Xm/ScrolledW.h>
  53 #include <Xm/ScrollBar.h>
  54 #include <Xm/Frame.h>
  55 #include <Xm/Label.h>
  56 #include <Xm/RowColumn.h>           // for XmMenuPosition
  57
  58 #include "wx/motif/private.h"
  59
  60 #include <string.h>
  61
  62 // ----------------------------------------------------------------------------
  63 // constants
  64 // ----------------------------------------------------------------------------
  65
  66 static const int SCROLL_MARGIN = 4;
  67
  68 // ----------------------------------------------------------------------------
  69 // global variables for this module
  70 // ----------------------------------------------------------------------------
  71
  72 extern wxHashTable *wxWidgetHashTable;
  73
  74 // ----------------------------------------------------------------------------
  75 // private functions
  76 // ----------------------------------------------------------------------------
  77
  78 static void wxCanvasRepaintProc(Widget, XtPointer, XmDrawingAreaCallbackStruct * cbs);
  79 static void wxCanvasInputEvent(Widget drawingArea, XtPointer data, XmDrawingAreaCallbackStruct * cbs);
  80 static void wxCanvasMotionEvent(Widget, XButtonEvent * event);
  81 static void wxCanvasEnterLeave(Widget drawingArea, XtPointer clientData, XCrossingEvent * event);
  82 static void wxScrollBarCallback(Widget widget, XtPointer clientData,
  83                                 XmScaleCallbackStruct *cbs);
  84 static void wxPanelItemEventHandler(Widget    wid,
  85                                     XtPointer client_data,
  86                                     XEvent*   event,
  87                                     Boolean  *continueToDispatch);
  88
  89 // unused for now
  90 #if 0
  91
  92 // Helper function for 16-bit fonts
  93 static int str16len(const char *s)
  94 {
  95     int count = 0;
  96
  97     while (s[0] && s[1]) {
  98         count++;
  99         s += 2;
 100     }
 101
 102     return count;
 103 }
 104
 105 #endif // 0
 106
 107 // ----------------------------------------------------------------------------
 108 // macros
 109 // ----------------------------------------------------------------------------
 110
 111 #define event_left_is_down(x) ((x)->xbutton.state & Button1Mask)
 112 #define event_middle_is_down(x) ((x)->xbutton.state & Button2Mask)
 113 #define event_right_is_down(x) ((x)->xbutton.state & Button3Mask)
 114
 115 // ----------------------------------------------------------------------------
 116 // event tables
 117 // ----------------------------------------------------------------------------
 118
 119 #if !USE_SHARED_LIBRARY
 120     IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxEvtHandler)
 121
 122     BEGIN_EVENT_TABLE(wxWindow, wxEvtHandler)
 123         EVT_SYS_COLOUR_CHANGED(wxWindow::OnSysColourChanged)
 124         EVT_IDLE(wxWindow::OnIdle)
 125     END_EVENT_TABLE()
 126 #endif // USE_SHARED_LIBRARY
 127
 128 // ============================================================================
 129 // implementation
 130 // ============================================================================
 131
 132 // ----------------------------------------------------------------------------
 133 // list types
 134 // ----------------------------------------------------------------------------
 135
 136 WX_DEFINE_LIST(wxRectList);
 137
 138 // ----------------------------------------------------------------------------
 139 // helper functions
 140 // ----------------------------------------------------------------------------
 141
 142 void wxWindow::UnmanageAndDestroy(WXWidget widget)
 143 {
 144     Widget w = (Widget)widget;
 145     if ( w )
 146     {
 147         XtUnmanageChild(w);
 148         XtDestroyWidget(w);
 149     }
 150 }
 151
 152 bool wxWindow::MapOrUnmap(WXWidget widget, bool map)
 153 {
 154     Widget w = (Widget)widget;
 155     if ( !w )
 156         return FALSE;
 157
 158     if ( map )
 159         XtMapWidget(w);
 160     else
 161         XtUnmapWidget(w);
 162
 163     return TRUE;
 164 }
 165
 166 // ----------------------------------------------------------------------------
 167 // constructors
 168 // ----------------------------------------------------------------------------
 169
 170 void wxWindow::Init()
 171 {
 172     // generic initializations first
 173     InitBase();
 174
 175     // Motif-specific
 176     m_needsRefresh = TRUE;
 177     m_mainWidget = (WXWidget) 0;
 178
 179     m_button1Pressed =
 180     m_button2Pressed =
 181     m_button3Pressed = FALSE;
 182
 183     m_winCaptured = FALSE;
 184
 185     m_isShown = TRUE;
 186     m_isBeingDeleted = FALSE;
 187
 188     m_hScrollBar =
 189     m_vScrollBar =
 190     m_borderWidget =
 191     m_scrolledWindow =
 192     m_drawingArea = (WXWidget) 0;
 193
 194     m_hScroll =
 195     m_vScroll = FALSE;
 196
 197     m_scrollPosX =
 198     m_scrollPosY = 0;
 199
 200     m_backingPixmap = (WXPixmap) 0;
 201     m_pixmapWidth =
 202     m_pixmapHeight = 0;
 203
 204     m_pixmapOffsetX =
 205     m_pixmapOffsetY = 0;
 206
 207     m_lastTS = 0;
 208     m_lastButton = 0;
 209     m_canAddEventHandler = FALSE;
 210 }
 211
 212 // real construction (Init() must have been called before!)
 213 bool wxWindow::Create(wxWindow *parent, wxWindowID id,
 214                       const wxPoint& pos,
 215                       const wxSize& size,
 216                       long style,
 217                       const wxString& name)
 218 {
 219     wxCHECK_MSG( parent, FALSE, "can't create wxWindow without parent" );
 220
 221     CreateBase(parent, id, pos, size, style, wxDefaultValidator, name);
 222
 223     parent->AddChild(this);
 224
 225     m_backgroundColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE);
 226     m_foregroundColour = *wxBLACK;
 227
 228     //// TODO: we should probably optimize by only creating a
 229     //// a drawing area if we have one or more scrollbars (wxVSCROLL/wxHSCROLL).
 230     //// But for now, let's simplify things by always creating the
 231     //// drawing area, since otherwise the translations are different.
 232
 233     // New translations for getting mouse motion feedback
 234     static const String translations =
 235 "<Btn1Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 236 <Btn2Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 237 <Btn3Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 238 <BtnMotion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 239 <Btn1Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 240 <Btn2Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 241 <Btn3Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 242 <Btn1Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 243 <Btn2Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 244 <Btn3Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 245 <Motion>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 246 <EnterWindow>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 247 <LeaveWindow>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 248 <Key>: DrawingAreaInput()";
 249
 250     XtActionsRec actions[1];
 251     actions[0].string = "wxCanvasMotionEvent";
 252     actions[0].proc = (XtActionProc) wxCanvasMotionEvent;
 253     XtAppAddActions ((XtAppContext) wxTheApp->GetAppContext(), actions, 1);
 254
 255     Widget parentWidget = (Widget) parent->GetClientWidget();
 256     if (style & wxBORDER)
 257     {
 258         m_borderWidget = (WXWidget)XtVaCreateManagedWidget
 259                                    (
 260                                     "canvasBorder",
 261                                     xmFrameWidgetClass, parentWidget,
 262                                     XmNshadowType, XmSHADOW_IN,
 263                                     NULL
 264                                    );
 265     }
 266
 267     m_scrolledWindow = (WXWidget)XtVaCreateManagedWidget
 268                                  (
 269                                   "scrolledWindow",
 270                                   xmScrolledWindowWidgetClass,
 271                                   m_borderWidget ? (Widget) m_borderWidget
 272                                                  : parentWidget,
 273                                   XmNresizePolicy, XmRESIZE_NONE,
 274                                   XmNspacing, 0,
 275                                   XmNscrollingPolicy, XmAPPLICATION_DEFINED,
 276                                   //XmNscrollBarDisplayPolicy, XmAS_NEEDED,
 277                                   NULL
 278                                  );
 279
 280     XtTranslations ptr = XtParseTranslationTable(translations);
 281     m_drawingArea = (WXWidget)XtVaCreateWidget
 282                               (
 283                                name,
 284                                xmDrawingAreaWidgetClass, (Widget) m_scrolledWindow,
 285                                XmNunitType, XmPIXELS,
 286                                // XmNresizePolicy, XmRESIZE_ANY,
 287                                XmNresizePolicy, XmRESIZE_NONE,
 288                                XmNmarginHeight, 0,
 289                                XmNmarginWidth, 0,
 290                                XmNtranslations, ptr,
 291                                NULL
 292                               );
 293     XtFree((char *) ptr);
 294
 295 #if 0
 296     if (GetWindowStyleFlag() & wxOVERRIDE_KEY_TRANSLATIONS)
 297     {
 298         ptr = XtParseTranslationTable ("<Key>: DrawingAreaInput()");
 299         XtOverrideTranslations ((Widget) m_drawingArea, ptr);
 300         XtFree ((char *) ptr);
 301     }
 302 #endif // 0
 303
 304     wxAddWindowToTable((Widget) m_drawingArea, this);
 305     wxAddWindowToTable((Widget) m_scrolledWindow, this);
 306
 307     // This order is very important in Motif 1.2.1
 308     XtRealizeWidget ((Widget) m_scrolledWindow);
 309     XtRealizeWidget ((Widget) m_drawingArea);
 310     XtManageChild ((Widget) m_drawingArea);
 311
 312     ptr = XtParseTranslationTable("<Configure>: resize()");
 313     XtOverrideTranslations((Widget) m_drawingArea, ptr);
 314     XtFree ((char *) ptr);
 315
 316     XtAddCallback ((Widget) m_drawingArea, XmNexposeCallback, (XtCallbackProc) wxCanvasRepaintProc, (XtPointer) this);
 317     XtAddCallback ((Widget) m_drawingArea, XmNinputCallback, (XtCallbackProc) wxCanvasInputEvent, (XtPointer) this);
 318
 319     // TODO?
 320 #if 0
 321     display = XtDisplay (scrolledWindow);
 322     xwindow = XtWindow (drawingArea);
 323 #endif // 0
 324
 325     XtAddEventHandler(
 326                       (Widget)m_drawingArea,
 327                        PointerMotionHintMask | EnterWindowMask |
 328                        LeaveWindowMask | FocusChangeMask,
 329                        False,
 330                        (XtEventHandler) wxCanvasEnterLeave,
 331                        (XtPointer) this
 332                      );
 333
 334     // Scrolled widget needs to have its colour changed or we get a little blue
 335     // square where the scrollbars abutt
 336     wxColour backgroundColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE);
 337     DoChangeBackgroundColour(m_scrolledWindow, backgroundColour, TRUE);
 338     DoChangeBackgroundColour(m_drawingArea, backgroundColour, TRUE);
 339
 340     XmScrolledWindowSetAreas(
 341                              (Widget)m_scrolledWindow,
 342                              (Widget) 0, (Widget) 0,
 343                              (Widget) m_drawingArea);
 344
 345 #if 0
 346     if (m_hScrollBar)
 347         XtRealizeWidget ((Widget) m_hScrollBar);
 348     if (m_vScrollBar)
 349         XtRealizeWidget ((Widget) m_vScrollBar);
 350 #endif // 0
 351
 352     // Without this, the cursor may not be restored properly (e.g. in splitter
 353     // sample).
 354     SetCursor(*wxSTANDARD_CURSOR);
 355     SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
 356     SetSize(pos.x, pos.y, size.x, size.y);
 357
 358     return TRUE;
 359 }
 360
 361 // Destructor
 362 wxWindow::~wxWindow()
 363 {
 364     m_isBeingDeleted = TRUE;
 365
 366     // Motif-specific actions first
 367     WXWidget wMain = GetMainWidget();
 368     if ( wMain )
 369     {
 370         // Removes event handlers
 371         DetachWidget(wMain);
 372     }
 373
 374     ClearUpdateRects();
 375
 376     if ( m_parent )
 377         m_parent->RemoveChild( this );
 378
 379     // If m_drawingArea, we're a fully-fledged window with drawing area,
 380     // scrollbars etc. (what wxCanvas used to be)
 381     if ( m_drawingArea )
 382     {
 383         // Destroy children before destroying self
 384         DestroyChildren();
 385
 386         if (m_backingPixmap)
 387             XFreePixmap (XtDisplay ((Widget) GetMainWidget()), (Pixmap) m_backingPixmap);
 388
 389         Widget w = (Widget) m_drawingArea;
 390         wxDeleteWindowFromTable(w);
 391
 392         if (w)
 393         {
 394             XtDestroyWidget(w);
 395         }
 396
 397         m_mainWidget = (WXWidget) 0;
 398
 399         // Only if we're _really_ a canvas (not a dialog box/panel)
 400         if (m_scrolledWindow)
 401         {
 402             wxDeleteWindowFromTable((Widget) m_scrolledWindow);
 403         }
 404
 405         UnmanageAndDestroy(m_hScrollBar);
 406         UnmanageAndDestroy(m_vScrollBar);
 407         UnmanageAndDestroy(m_scrolledWindow);
 408
 409         if (m_borderWidget)
 410         {
 411             XtDestroyWidget ((Widget) m_borderWidget);
 412             m_borderWidget = (WXWidget) 0;
 413         }
 414     }
 415
 416     // Destroy the window
 417     if (GetMainWidget())
 418     {
 419         // If this line (XtDestroyWidget) causes a crash, you may comment it out.
 420         // Child widgets will get destroyed automatically when a frame
 421         // or dialog is destroyed, but before that you may get some memory
 422         // leaks and potential layout problems if you delete and then add
 423         // child windows.
 424         XtDestroyWidget((Widget) GetMainWidget());
 425         SetMainWidget((WXWidget) NULL);
 426     }
 427 }
 428
 429 // ----------------------------------------------------------------------------
 430 // scrollbar management
 431 // ----------------------------------------------------------------------------
 432
 433 // Helper function
 434 void wxWindow::CreateScrollbar(wxOrientation orientation)
 435 {
 436     wxCHECK_RET( m_drawingArea, "this window can't have scrollbars" );
 437
 438     XtVaSetValues((Widget) m_scrolledWindow, XmNresizePolicy, XmRESIZE_NONE, NULL);
 439
 440     // Add scrollbars if required
 441     if (orientation == wxHORIZONTAL)
 442     {
 443         Widget hScrollBar = XtVaCreateManagedWidget ("hsb",
 444             xmScrollBarWidgetClass, (Widget) m_scrolledWindow,
 445             XmNorientation, XmHORIZONTAL,
 446             NULL);
 447         //      XtAddCallback (hScrollBar, XmNvalueChangedCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 448         XtAddCallback (hScrollBar, XmNdragCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 449         XtAddCallback (hScrollBar, XmNincrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 450         XtAddCallback (hScrollBar, XmNdecrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 451         XtAddCallback (hScrollBar, XmNpageIncrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 452         XtAddCallback (hScrollBar, XmNpageDecrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 453         XtAddCallback (hScrollBar, XmNtoTopCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 454         XtAddCallback (hScrollBar, XmNtoBottomCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 455
 456         XtVaSetValues (hScrollBar,
 457             XmNincrement, 1,
 458             XmNvalue, 0,
 459             NULL);
 460
 461         m_hScrollBar = (WXWidget) hScrollBar;
 462
 463         wxColour backgroundColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE);
 464         DoChangeBackgroundColour(m_hScrollBar, backgroundColour, TRUE);
 465
 466         XtRealizeWidget(hScrollBar);
 467
 468         XtVaSetValues((Widget) m_scrolledWindow,
 469             XmNhorizontalScrollBar, (Widget) m_hScrollBar,
 470             NULL);
 471
 472         m_hScroll = TRUE;
 473     }
 474
 475     if (orientation == wxVERTICAL)
 476     {
 477         Widget vScrollBar = XtVaCreateManagedWidget ("vsb",
 478             xmScrollBarWidgetClass, (Widget) m_scrolledWindow,
 479             XmNorientation, XmVERTICAL,
 480             NULL);
 481         //      XtAddCallback (vScrollBar, XmNvalueChangedCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 482         XtAddCallback (vScrollBar, XmNdragCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 483         XtAddCallback (vScrollBar, XmNincrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 484         XtAddCallback (vScrollBar, XmNdecrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 485         XtAddCallback (vScrollBar, XmNpageIncrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 486         XtAddCallback (vScrollBar, XmNpageDecrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 487         XtAddCallback (vScrollBar, XmNtoTopCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 488         XtAddCallback (vScrollBar, XmNtoBottomCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 489
 490         XtVaSetValues (vScrollBar,
 491             XmNincrement, 1,
 492             XmNvalue, 0,
 493             NULL);
 494
 495         m_vScrollBar = (WXWidget) vScrollBar;
 496         wxColour backgroundColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE);
 497         DoChangeBackgroundColour(m_vScrollBar, backgroundColour, TRUE);
 498
 499         XtRealizeWidget(vScrollBar);
 500
 501         XtVaSetValues((Widget) m_scrolledWindow,
 502             XmNverticalScrollBar, (Widget) m_vScrollBar,
 503             NULL);
 504
 505         m_vScroll = TRUE;
 506     }
 507
 508     XtVaSetValues((Widget) m_scrolledWindow, XmNresizePolicy, XmRESIZE_ANY, NULL);
 509 }
 510
 511 void wxWindow::DestroyScrollbar(wxOrientation orientation)
 512 {
 513     wxCHECK_RET( m_drawingArea, "this window can't have scrollbars" );
 514
 515     XtVaSetValues((Widget) m_scrolledWindow, XmNresizePolicy, XmRESIZE_NONE, NULL);
 516     // Add scrollbars if required
 517     if (orientation == wxHORIZONTAL)
 518     {
 519         if (m_hScrollBar)
 520         {
 521             XtDestroyWidget((Widget) m_hScrollBar);
 522         }
 523         m_hScrollBar = (WXWidget) 0;
 524         m_hScroll = FALSE;
 525
 526         XtVaSetValues((Widget) m_scrolledWindow,
 527             XmNhorizontalScrollBar, (Widget) 0,
 528             NULL);
 529
 530     }
 531
 532     if (orientation == wxVERTICAL)
 533     {
 534         if (m_vScrollBar)
 535         {
 536             XtDestroyWidget((Widget) m_vScrollBar);
 537         }
 538         m_vScrollBar = (WXWidget) 0;
 539         m_vScroll = TRUE;
 540
 541         XtVaSetValues((Widget) m_scrolledWindow,
 542             XmNverticalScrollBar, (Widget) 0,
 543             NULL);
 544
 545     }
 546     XtVaSetValues((Widget) m_scrolledWindow, XmNresizePolicy, XmRESIZE_ANY, NULL);
 547 }
 548
 549 // ---------------------------------------------------------------------------
 550 // basic operations
 551 // ---------------------------------------------------------------------------
 552
 553 void wxWindow::SetFocus()
 554 {
 555     Widget wMain = (Widget) GetMainWidget();
 556     XmProcessTraversal(wMain, XmTRAVERSE_CURRENT);
 557     XmProcessTraversal((Widget) GetMainWidget(), XmTRAVERSE_CURRENT);
 558 }
 559
 560 // Get the window with the focus
 561 wxWindow *wxWindowBase::FindFocus()
 562 {
 563     // TODO Problems:
 564     // (1) Can there be multiple focussed widgets in an application?
 565     // In which case we need to find the top-level window that's
 566     // currently active.
 567     // (2) The widget with the focus may not be in the widget table
 568     // depending on which widgets I put in the table
 569     wxWindow *winFocus = (wxWindow *)NULL;
 570     for ( wxWindowList::Node *node = wxTopLevelWindows.GetFirst();
 571           node;
 572           node = node->GetNext() )
 573     {
 574         wxWindow *win = node->GetData();
 575
 576         Widget w = XmGetFocusWidget ((Widget) win->GetTopWidget());
 577
 578         if (w != (Widget) NULL)
 579         {
 580             winFocus = wxGetWindowFromTable(w);
 581             if ( winFocus )
 582                 break;
 583         }
 584     }
 585
 586     return winFocus;
 587 }
 588
 589 bool wxWindow::Enable(bool enable)
 590 {
 591     if ( !wxWindowBase::Enable(enable) )
 592         return FALSE;
 593
 594     Widget wMain = (Widget)GetMainWidget();
 595     if ( wMain )
 596     {
 597         XtSetSensitive(wMain, enable);
 598         XmUpdateDisplay(wMain);
 599     }
 600
 601     return TRUE;
 602 }
 603
 604 bool wxWindow::Show(bool show)
 605 {
 606     if ( !wxWindowBase::Show(show) )
 607         return FALSE;
 608
 609     if (m_borderWidget || m_scrolledWindow)
 610     {
 611         MapOrUnmap(m_drawingArea, show);
 612         MapOrUnmap(m_borderWidget ? m_borderWidget : m_scrolledWindow, show);
 613     }
 614     else
 615     {
 616         if ( !MapOrUnmap(GetTopWidget(), show) )
 617             MapOrUnmap(GetMainWidget(), show);
 618     }
 619
 620 #if 0
 621     Window xwin = (Window) GetXWindow();
 622     Display *xdisp = (Display*) GetXDisplay();
 623     if (show)
 624         XMapWindow(xdisp, xwin);
 625     else
 626         XUnmapWindow(xdisp, xwin);
 627 #endif
 628
 629     return TRUE;
 630 }
 631
 632 // Raise the window to the top of the Z order
 633 void wxWindow::Raise()
 634 {
 635     Widget wTop = (Widget) GetTopWidget();
 636     Window window = XtWindow(wTop);
 637     XRaiseWindow(XtDisplay(wTop), window);
 638 }
 639
 640 // Lower the window to the bottom of the Z order
 641 void wxWindow::Lower()
 642 {
 643     Widget wTop = (Widget) GetTopWidget();
 644     Window window = XtWindow(wTop);
 645     XLowerWindow(XtDisplay(wTop), window);
 646 }
 647
 648 void wxWindow::SetTitle(const wxString& title)
 649 {
 650     XtVaSetValues((Widget)GetMainWidget(), XmNtitle, title.c_str(), NULL);
 651 }
 652
 653 wxString wxWindow::GetTitle() const
 654 {
 655     char *title;
 656     XtVaGetValues((Widget)GetMainWidget(), XmNtitle, &title, NULL);
 657
 658     return wxString(title);
 659 }
 660
 661 void wxWindow::CaptureMouse()
 662 {
 663     if ( m_winCaptured )
 664         return;
 665
 666     Widget wMain = (Widget)GetMainWidget();
 667     if ( wMain )
 668         XtAddGrab(wMain, TRUE, FALSE);
 669
 670     m_winCaptured = TRUE;
 671 }
 672
 673 void wxWindow::ReleaseMouse()
 674 {
 675     if ( !m_winCaptured )
 676         return;
 677
 678     Widget wMain = (Widget)GetMainWidget();
 679     if ( wMain )
 680         XtRemoveGrab(wMain);
 681
 682     m_winCaptured = FALSE;
 683 }
 684
 685 bool wxWindow::SetFont(const wxFont& font)
 686 {
 687     if ( !wxWindowBase::SetFont(font) )
 688     {
 689         // nothing to do
 690         return FALSE;
 691     }
 692
 693     ChangeFont();
 694
 695     return TRUE;
 696 }
 697
 698 bool wxWindow::SetCursor(const wxCursor& cursor)
 699 {
 700     if ( !wxWindowBase::SetCursor(cursor) )
 701     {
 702         // no change
 703         return FALSE;
 704     }
 705
 706     wxASSERT_MSG( m_cursor.Ok(),
 707                   _T("cursor must be valid after call to the base version"));
 708
 709     WXDisplay *dpy = GetXDisplay();
 710     WXCursor x_cursor = m_cursor.GetXCursor(dpy);
 711
 712     Widget w = (Widget) GetMainWidget();
 713     Window win = XtWindow(w);
 714     XDefineCursor((Display*) dpy, win, (Cursor) x_cursor);
 715
 716     return TRUE;
 717 }
 718
 719 // Coordinates relative to the window
 720 void wxWindow::WarpPointer (int x, int y)
 721 {
 722     Widget wClient = (Widget)GetClientWidget();
 723
 724     XWarpPointer(XtDisplay(wClient), None, XtWindow(wClient), 0, 0, 0, 0, x, y);
 725 }
 726
 727 // ---------------------------------------------------------------------------
 728 // scrolling stuff
 729 // ---------------------------------------------------------------------------
 730
 731 int wxWindow::GetScrollPos(int orient) const
 732 {
 733     if (orient == wxHORIZONTAL)
 734         return m_scrollPosX;
 735     else
 736         return m_scrollPosY;
 737
 738 #if 0
 739     Widget scrollBar = (Widget) ((orient == wxHORIZONTAL) ? m_hScrollBar : m_vScrollBar);
 740     if (scrollBar)
 741     {
 742         int pos;
 743         XtVaGetValues(scrollBar, XmNvalue, &pos, NULL);
 744         return pos;
 745     }
 746     else
 747         return 0;
 748 #endif // 0
 749 }
 750
 751 // This now returns the whole range, not just the number of positions that we
 752 // can scroll.
 753 int wxWindow::GetScrollRange(int orient) const
 754 {
 755     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 756     wxCHECK_MSG( scrollBar, 0, "no such scrollbar" );
 757
 758     int range;
 759     XtVaGetValues(scrollBar, XmNmaximum, &range, NULL);
 760     return range;
 761 }
 762
 763 int wxWindow::GetScrollThumb(int orient) const
 764 {
 765     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 766     wxCHECK_MSG( scrollBar, 0, "no such scrollbar" );
 767
 768     int thumb;
 769     XtVaGetValues(scrollBar, XmNsliderSize, &thumb, NULL);
 770     return thumb;
 771 }
 772
 773 void wxWindow::SetScrollPos(int orient, int pos, bool WXUNUSED(refresh))
 774 {
 775     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 776
 777     if ( scrollBar )
 778     {
 779         XtVaSetValues (scrollBar, XmNvalue, pos, NULL);
 780     }
 781
 782     SetInternalScrollPos((wxOrientation)orient, pos);
 783 }
 784
 785 // New function that will replace some of the above.
 786 void wxWindow::SetScrollbar(int orient, int pos, int thumbVisible,
 787                             int range, bool WXUNUSED(refresh))
 788 {
 789     int oldW, oldH;
 790     GetSize(& oldW, & oldH);
 791
 792     if (range == 0)
 793         range = 1;
 794     if (thumbVisible == 0)
 795         thumbVisible = 1;
 796
 797     if (thumbVisible > range)
 798         thumbVisible = range;
 799
 800     // Save the old state to see if it changed
 801     WXWidget oldScrollBar = GetScrollbar((wxOrientation)orient);
 802
 803     if (orient == wxHORIZONTAL)
 804     {
 805         if (thumbVisible == range)
 806         {
 807             if (m_hScrollBar)
 808                 DestroyScrollbar(wxHORIZONTAL);
 809         }
 810         else
 811         {
 812             if (!m_hScrollBar)
 813                 CreateScrollbar(wxHORIZONTAL);
 814         }
 815     }
 816     if (orient == wxVERTICAL)
 817     {
 818         if (thumbVisible == range)
 819         {
 820             if (m_vScrollBar)
 821                 DestroyScrollbar(wxVERTICAL);
 822         }
 823         else
 824         {
 825             if (!m_vScrollBar)
 826                 CreateScrollbar(wxVERTICAL);
 827         }
 828     }
 829     WXWidget newScrollBar =  GetScrollbar((wxOrientation)orient);
 830
 831     if (oldScrollBar != newScrollBar)
 832     {
 833         // This is important! Without it, scrollbars misbehave badly.
 834         XtUnrealizeWidget((Widget) m_scrolledWindow);
 835         XmScrolledWindowSetAreas ((Widget) m_scrolledWindow, (Widget) m_hScrollBar, (Widget) m_vScrollBar, (Widget) m_drawingArea);
 836         XtRealizeWidget((Widget) m_scrolledWindow);
 837         XtManageChild((Widget) m_scrolledWindow);
 838     }
 839
 840     if (newScrollBar)
 841     {
 842         XtVaSetValues((Widget) newScrollBar,
 843         XmNvalue, pos,
 844         XmNminimum, 0,
 845         XmNmaximum, range,
 846         XmNsliderSize, thumbVisible,
 847         NULL);
 848     }
 849
 850     SetInternalScrollPos((wxOrientation)orient, pos);
 851
 852     int newW, newH;
 853     GetSize(& newW, & newH);
 854
 855     // Adjusting scrollbars can resize the canvas accidentally
 856     if (newW != oldW || newH != oldH)
 857         SetSize(-1, -1, oldW, oldH);
 858 }
 859
 860 // Does a physical scroll
 861 void wxWindow::ScrollWindow(int dx, int dy, const wxRect *rect)
 862 {
 863     int x, y, w, h;
 864     if (rect)
 865     {
 866         // Use specified rectangle
 867         x = rect->x; y = rect->y; w = rect->width; h = rect->height;
 868     }
 869     else
 870     {
 871         // Use whole client area
 872         x = 0; y = 0;
 873         GetClientSize(& w, & h);
 874     }
 875
 876     int x1 = (dx >= 0) ? x : x - dx;
 877     int y1 = (dy >= 0) ? y : y - dy;
 878     int w1 = w - abs(dx);
 879     int h1 = h - abs(dy);
 880     int x2 = (dx >= 0) ? x + dx : x;
 881     int y2 = (dy >= 0) ? y + dy : y;
 882
 883     wxClientDC dc(this);
 884
 885     dc.SetLogicalFunction (wxCOPY);
 886
 887     Widget widget = (Widget) GetMainWidget();
 888     Window window = XtWindow(widget);
 889     Display* display = XtDisplay(widget);
 890
 891     XCopyArea(display, window, window, (GC) dc.GetGC(),
 892               x1, y1, w1, h1, x2, y2);
 893
 894     dc.SetAutoSetting(TRUE);
 895     wxBrush brush(GetBackgroundColour(), wxSOLID);
 896     dc.SetBrush(brush); // FIXME: needed?
 897
 898     // We'll add rectangles to the list of update rectangles according to which
 899     // bits we've exposed.
 900     wxList updateRects;
 901
 902     if (dx > 0)
 903     {
 904         wxRect *rect = new wxRect;
 905         rect->x = x;
 906         rect->y = y;
 907         rect->width = dx;
 908         rect->height = h;
 909
 910         XFillRectangle(display, window,
 911             (GC) dc.GetGC(), rect->x, rect->y, rect->width, 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     else if (dx < 0)
 921     {
 922         wxRect *rect = new wxRect;
 923
 924         rect->x = x + w + dx;
 925         rect->y = y;
 926         rect->width = -dx;
 927         rect->height = h;
 928
 929         XFillRectangle(display, window,
 930             (GC) dc.GetGC(), rect->x, rect->y, rect->width,
 931             rect->height);
 932
 933         rect->x = rect->x;
 934         rect->y = rect->y;
 935         rect->width = rect->width;
 936         rect->height = rect->height;
 937
 938         updateRects.Append((wxObject*) rect);
 939     }
 940     if (dy > 0)
 941     {
 942         wxRect *rect = new wxRect;
 943
 944         rect->x = x;
 945         rect->y = y;
 946         rect->width = w;
 947         rect->height = dy;
 948
 949         XFillRectangle(display, window,
 950             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
 951
 952         rect->x = rect->x;
 953         rect->y = rect->y;
 954         rect->width = rect->width;
 955         rect->height = rect->height;
 956
 957         updateRects.Append((wxObject*) rect);
 958     }
 959     else if (dy < 0)
 960     {
 961         wxRect *rect = new wxRect;
 962
 963         rect->x = x;
 964         rect->y = y + h + dy;
 965         rect->width = w;
 966         rect->height = -dy;
 967
 968         XFillRectangle(display, window,
 969             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
 970
 971         rect->x = rect->x;
 972         rect->y = rect->y;
 973         rect->width = rect->width;
 974         rect->height = rect->height;
 975
 976         updateRects.Append((wxObject*) rect);
 977     }
 978     dc.SetBrush(wxNullBrush);
 979
 980     // Now send expose events
 981
 982     wxNode* node = updateRects.First();
 983     while (node)
 984     {
 985         wxRect* rect = (wxRect*) node->Data();
 986         XExposeEvent event;
 987
 988         event.type = Expose;
 989         event.display = display;
 990         event.send_event = True;
 991         event.window = window;
 992
 993         event.x = rect->x;
 994         event.y = rect->y;
 995         event.width = rect->width;
 996         event.height = rect->height;
 997
 998         event.count = 0;
 999
1000         XSendEvent(display, window, False, ExposureMask, (XEvent *)&event);
1001
1002         node = node->Next();
1003
1004     }
1005
1006     // Delete the update rects
1007     node = updateRects.First();
1008     while (node)
1009     {
1010         wxRect* rect = (wxRect*) node->Data();
1011         delete rect;
1012         node = node->Next();
1013     }
1014
1015     XmUpdateDisplay((Widget) GetMainWidget());
1016 }
1017
1018 // ---------------------------------------------------------------------------
1019 // drag and drop
1020 // ---------------------------------------------------------------------------
1021
1022 #if wxUSE_DRAG_AND_DROP
1023
1024 void wxWindow::SetDropTarget(wxDropTarget * WXUNUSED(pDropTarget))
1025 {
1026     // TODO
1027 }
1028
1029 #endif
1030
1031 // Old style file-manager drag&drop
1032 void wxWindow::DragAcceptFiles(bool WXUNUSED(accept))
1033 {
1034     // TODO
1035 }
1036
1037 // ----------------------------------------------------------------------------
1038 // tooltips
1039 // ----------------------------------------------------------------------------
1040
1041 #if wxUSE_TOOLTIPS
1042
1043 void wxWindow::DoSetToolTip(wxToolTip * WXUNUSED(tooltip))
1044 {
1045     // TODO
1046 }
1047
1048 #endif // wxUSE_TOOLTIPS
1049
1050 // ----------------------------------------------------------------------------
1051 // popup menus
1052 // ----------------------------------------------------------------------------
1053
1054 bool wxWindow::DoPopupMenu(wxMenu *menu, int x, int y)
1055 {
1056     Widget widget = (Widget) GetMainWidget();
1057
1058     /* The menuId field seems to be usused, so we'll use it to
1059     indicate whether a menu is popped up or not:
1060     0: Not currently created as a popup
1061     -1: Created as a popup, but not active
1062     1: Active popup.
1063     */
1064
1065     if (menu->GetParent() && (menu->GetId() != -1))
1066         return FALSE;
1067
1068     if (menu->GetMainWidget()) {
1069         menu->DestroyMenu(TRUE);
1070     }
1071
1072     menu->SetId(1); /* Mark as popped-up */
1073     menu->CreateMenu(NULL, widget, menu);
1074     menu->SetInvokingWindow(this);
1075
1076     menu->UpdateUI();
1077
1078     //  menu->SetParent(parent);
1079     //  parent->children->Append(menu);  // Store menu for later deletion
1080
1081     Widget menuWidget = (Widget) menu->GetMainWidget();
1082
1083     int rootX = 0;
1084     int rootY = 0;
1085
1086     int deviceX = x;
1087     int deviceY = y;
1088     /*
1089     if (this->IsKindOf(CLASSINFO(wxCanvas)))
1090     {
1091     wxCanvas *canvas = (wxCanvas *) this;
1092     deviceX = canvas->GetDC ()->LogicalToDeviceX (x);
1093     deviceY = canvas->GetDC ()->LogicalToDeviceY (y);
1094     }
1095     */
1096
1097     Display *display = XtDisplay (widget);
1098     Window rootWindow = RootWindowOfScreen (XtScreen((Widget)widget));
1099     Window thisWindow = XtWindow (widget);
1100     Window childWindow;
1101     XTranslateCoordinates (display, thisWindow, rootWindow, (int) deviceX, (int) deviceY,
1102         &rootX, &rootY, &childWindow);
1103
1104     XButtonPressedEvent event;
1105     event.type = ButtonPress;
1106     event.button = 1;
1107
1108     event.x = deviceX;
1109     event.y = deviceY;
1110
1111     event.x_root = rootX;
1112     event.y_root = rootY;
1113
1114     XmMenuPosition (menuWidget, &event);
1115     XtManageChild (menuWidget);
1116
1117     return TRUE;
1118 }
1119
1120 // ---------------------------------------------------------------------------
1121 // moving and resizing
1122 // ---------------------------------------------------------------------------
1123
1124 bool wxWindow::PreResize()
1125 {
1126     return TRUE;
1127 }
1128
1129 // Get total size
1130 void wxWindow::DoGetSize(int *x, int *y) const
1131 {
1132     if (m_drawingArea)
1133     {
1134         CanvasGetSize(x, y);
1135         return;
1136     }
1137
1138     Widget widget = (Widget) GetTopWidget();
1139     Dimension xx, yy;
1140     XtVaGetValues(widget, XmNwidth, &xx, XmNheight, &yy, NULL);
1141     *x = xx; *y = yy;
1142 }
1143
1144 void wxWindow::DoGetPosition(int *x, int *y) const
1145 {
1146     if (m_drawingArea)
1147     {
1148         CanvasGetPosition(x, y);
1149         return;
1150     }
1151     Widget widget = (Widget) GetTopWidget();
1152     Position xx, yy;
1153     XtVaGetValues(widget, XmNx, &xx, XmNy, &yy, NULL);
1154
1155     // We may be faking the client origin. So a window that's really at (0, 30)
1156     // may appear (to wxWin apps) to be at (0, 0).
1157     if (GetParent())
1158     {
1159         wxPoint pt(GetParent()->GetClientAreaOrigin());
1160         xx -= pt.x;
1161         yy -= pt.y;
1162     }
1163
1164     *x = xx; *y = yy;
1165 }
1166
1167 void wxWindow::DoScreenToClient(int *x, int *y) const
1168 {
1169     Widget widget = (Widget) GetClientWidget();
1170     Display *display = XtDisplay((Widget) GetMainWidget());
1171     Window rootWindow = RootWindowOfScreen(XtScreen(widget));
1172     Window thisWindow = XtWindow(widget);
1173
1174     Window childWindow;
1175     int xx = *x;
1176     int yy = *y;
1177     XTranslateCoordinates(display, rootWindow, thisWindow, xx, yy, x, y, &childWindow);
1178 }
1179
1180 void wxWindow::DoClientToScreen(int *x, int *y) const
1181 {
1182     Widget widget = (Widget) GetClientWidget();
1183     Display *display = XtDisplay(widget);
1184     Window rootWindow = RootWindowOfScreen(XtScreen(widget));
1185     Window thisWindow = XtWindow(widget);
1186
1187     Window childWindow;
1188     int xx = *x;
1189     int yy = *y;
1190     XTranslateCoordinates(display, thisWindow, rootWindow, xx, yy, x, y, &childWindow);
1191 }
1192
1193
1194 // Get size *available for subwindows* i.e. excluding menu bar etc.
1195 void wxWindow::DoGetClientSize(int *x, int *y) const
1196 {
1197     Widget widget = (Widget) GetClientWidget();
1198     Dimension xx, yy;
1199     XtVaGetValues(widget, XmNwidth, &xx, XmNheight, &yy, NULL);
1200     *x = xx; *y = yy;
1201 }
1202
1203 void wxWindow::DoSetSize(int x, int y, int width, int height, int sizeFlags)
1204 {
1205     // A bit of optimization to help sort out the flickers.
1206     int oldX, oldY, oldW, oldH;
1207     GetSize(& oldW, & oldH);
1208     GetPosition(& oldX, & oldY);
1209
1210     bool useOldPos = FALSE;
1211     bool useOldSize = FALSE;
1212
1213     if ((x == -1) && (x == -1) && ((sizeFlags & wxSIZE_ALLOW_MINUS_ONE) == 0))
1214         useOldPos = TRUE;
1215     else if (x == oldX && y == oldY)
1216         useOldPos = TRUE;
1217
1218     if ((width == -1) && (height == -1))
1219         useOldSize = TRUE;
1220     else if (width == oldW && height == oldH)
1221         useOldSize = TRUE;
1222
1223     if (!wxNoOptimize::CanOptimize())
1224     {
1225         useOldSize = FALSE; useOldPos = FALSE;
1226     }
1227
1228     if (useOldPos && useOldSize)
1229         return;
1230
1231     if (m_drawingArea)
1232     {
1233         CanvasSetSize(x, y, width, height, sizeFlags);
1234         return;
1235     }
1236     Widget widget = (Widget) GetTopWidget();
1237     if (!widget)
1238         return;
1239
1240     bool managed = XtIsManaged( widget );
1241     if (managed)
1242         XtUnmanageChild(widget);
1243
1244     int xx = x; int yy = y;
1245     AdjustForParentClientOrigin(xx, yy, sizeFlags);
1246
1247     if (!useOldPos)
1248     {
1249         if (x > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
1250             XtVaSetValues(widget, XmNx, xx, NULL);
1251         if (y > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
1252             XtVaSetValues(widget, XmNy, yy, NULL);
1253     }
1254     if (!useOldSize)
1255     {
1256         if (width > -1)
1257             XtVaSetValues(widget, XmNwidth, width, NULL);
1258         if (height > -1)
1259             XtVaSetValues(widget, XmNheight, height, NULL);
1260     }
1261
1262     if (managed)
1263         XtManageChild(widget);
1264
1265     // How about this bit. Maybe we don't need to generate size events
1266     // all the time -- they'll be generated when the window is sized anyway.
1267 #if 0
1268     wxSizeEvent sizeEvent(wxSize(width, height), GetId());
1269     sizeEvent.SetEventObject(this);
1270
1271       GetEventHandler()->ProcessEvent(sizeEvent);
1272 #endif // 0
1273 }
1274
1275 void wxWindow::DoSetClientSize(int width, int height)
1276 {
1277     if (m_drawingArea)
1278     {
1279         CanvasSetClientSize(width, height);
1280         return;
1281     }
1282
1283     Widget widget = (Widget) GetTopWidget();
1284
1285     if (width > -1)
1286         XtVaSetValues(widget, XmNwidth, width, NULL);
1287     if (height > -1)
1288         XtVaSetValues(widget, XmNheight, height, NULL);
1289
1290     wxSizeEvent sizeEvent(wxSize(width, height), GetId());
1291     sizeEvent.SetEventObject(this);
1292
1293     GetEventHandler()->ProcessEvent(sizeEvent);
1294 }
1295
1296 // For implementation purposes - sometimes decorations make the client area
1297 // smaller
1298 wxPoint wxWindow::GetClientAreaOrigin() const
1299 {
1300     return wxPoint(0, 0);
1301 }
1302
1303 // Makes an adjustment to the window position (for example, a frame that has
1304 // a toolbar that it manages itself).
1305 void wxWindow::AdjustForParentClientOrigin(int& x, int& y, int sizeFlags)
1306 {
1307     if (((sizeFlags & wxSIZE_NO_ADJUSTMENTS) == 0) && GetParent())
1308     {
1309         wxPoint pt(GetParent()->GetClientAreaOrigin());
1310         x += pt.x; y += pt.y;
1311     }
1312 }
1313
1314 void wxWindow::SetSizeHints(int minW, int minH, int maxW, int maxH, int incW, int incH)
1315 {
1316     m_minWidth = minW;
1317     m_minHeight = minH;
1318     m_maxWidth = maxW;
1319     m_maxHeight = maxH;
1320
1321     wxFrame *frame = wxDynamicCast(this, wxFrame);
1322     if ( !frame )
1323     {
1324         // TODO what about dialogs?
1325         return;
1326     }
1327
1328     Widget widget = (Widget) frame->GetShellWidget();
1329
1330     if (minW > -1)
1331         XtVaSetValues(widget, XmNminWidth, minW, NULL);
1332     if (minH > -1)
1333         XtVaSetValues(widget, XmNminHeight, minH, NULL);
1334     if (maxW > -1)
1335         XtVaSetValues(widget, XmNmaxWidth, maxW, NULL);
1336     if (maxH > -1)
1337         XtVaSetValues(widget, XmNmaxHeight, maxH, NULL);
1338     if (incW > -1)
1339         XtVaSetValues(widget, XmNwidthInc, incW, NULL);
1340     if (incH > -1)
1341         XtVaSetValues(widget, XmNheightInc, incH, NULL);
1342 }
1343
1344 // ---------------------------------------------------------------------------
1345 // text metrics
1346 // ---------------------------------------------------------------------------
1347
1348 int wxWindow::GetCharHeight() const
1349 {
1350     wxCHECK_MSG( m_font.Ok(), 0, "valid window font needed" );
1351
1352     WXFontStructPtr pFontStruct = m_font.GetFontStruct(1.0, GetXDisplay());
1353
1354     int direction, ascent, descent;
1355     XCharStruct overall;
1356     XTextExtents ((XFontStruct*) pFontStruct, "x", 1, &direction, &ascent,
1357         &descent, &overall);
1358
1359     //  return (overall.ascent + overall.descent);
1360     return (ascent + descent);
1361 }
1362
1363 int wxWindow::GetCharWidth() const
1364 {
1365     wxCHECK_MSG( m_font.Ok(), 0, "valid window font needed" );
1366
1367     WXFontStructPtr pFontStruct = m_font.GetFontStruct(1.0, GetXDisplay());
1368
1369     int direction, ascent, descent;
1370     XCharStruct overall;
1371     XTextExtents ((XFontStruct*) pFontStruct, "x", 1, &direction, &ascent,
1372         &descent, &overall);
1373
1374     return overall.width;
1375 }
1376
1377 void wxWindow::GetTextExtent(const wxString& string,
1378                              int *x, int *y,
1379                              int *descent, int *externalLeading,
1380                              const wxFont *theFont) const
1381 {
1382     wxFont *fontToUse = (wxFont *)theFont;
1383     if (!fontToUse)
1384         fontToUse = (wxFont *) & m_font;
1385
1386     wxCHECK_RET( fontToUse->Ok(), "valid window font needed" );
1387
1388     WXFontStructPtr pFontStruct = theFont->GetFontStruct(1.0, GetXDisplay());
1389
1390     int direction, ascent, descent2;
1391     XCharStruct overall;
1392     int slen;
1393
1394 #if 0
1395     if (use16)
1396         XTextExtents16((XFontStruct*) pFontStruct, (XChar2b *) (char*) (const char*) string, slen, &direction,
1397         &ascent, &descent2, &overall);
1398 #endif
1399
1400     XTextExtents((XFontStruct*) pFontStruct, string, slen,
1401                  &direction, &ascent, &descent2, &overall);
1402
1403     if ( x )
1404         *x = (overall.width);
1405     if ( y )
1406         *y = (ascent + descent2);
1407     if (descent)
1408         *descent = descent2;
1409     if (externalLeading)
1410         *externalLeading = 0;
1411 }
1412
1413 // ----------------------------------------------------------------------------
1414 // painting
1415 // ----------------------------------------------------------------------------
1416
1417 void wxWindow::Refresh(bool eraseBack, const wxRect *rect)
1418 {
1419     m_needsRefresh = TRUE;
1420     Display *display = XtDisplay((Widget) GetMainWidget());
1421     Window thisWindow = XtWindow((Widget) GetMainWidget());
1422
1423     XExposeEvent dummyEvent;
1424     int width, height;
1425     GetSize(&width, &height);
1426
1427     dummyEvent.type = Expose;
1428     dummyEvent.display = display;
1429     dummyEvent.send_event = True;
1430     dummyEvent.window = thisWindow;
1431     if (rect)
1432     {
1433         dummyEvent.x = rect->x;
1434         dummyEvent.y = rect->y;
1435         dummyEvent.width = rect->width;
1436         dummyEvent.height = rect->height;
1437     }
1438     else
1439     {
1440         dummyEvent.x = 0;
1441         dummyEvent.y = 0;
1442         dummyEvent.width = width;
1443         dummyEvent.height = height;
1444     }
1445     dummyEvent.count = 0;
1446
1447     if (eraseBack)
1448     {
1449         wxClientDC dc(this);
1450         wxBrush backgroundBrush(GetBackgroundColour(), wxSOLID);
1451         dc.SetBackground(backgroundBrush);
1452         if (rect)
1453             dc.Clear(*rect);
1454         else
1455             dc.Clear();
1456     }
1457
1458     XSendEvent(display, thisWindow, False, ExposureMask, (XEvent *)&dummyEvent);
1459 }
1460
1461 void wxWindow::Clear()
1462 {
1463     wxClientDC dc(this);
1464     wxBrush brush(GetBackgroundColour(), wxSOLID);
1465     dc.SetBackground(brush);
1466     dc.Clear();
1467 }
1468
1469 void wxWindow::ClearUpdateRects()
1470 {
1471     wxRectList::Node* node = m_updateRects.GetFirst();
1472     while (node)
1473     {
1474         wxRect* rect = node->GetData();
1475         delete rect;
1476         node = node->GetNext();
1477     }
1478
1479     m_updateRects.Clear();
1480 }
1481
1482 void wxWindow::DoPaint()
1483 {
1484     //TODO : make a temporary gc so we can do the XCopyArea below
1485     if (m_backingPixmap && !m_needsRefresh)
1486     {
1487       wxPaintDC dc(this);
1488
1489       GC tempGC = (GC) dc.GetBackingGC();
1490
1491       Widget widget = (Widget) GetMainWidget();
1492
1493       int scrollPosX = 0;
1494       int scrollPosY = 0;
1495
1496       // We have to test whether it's a wxScrolledWindow (hack!) because
1497       // otherwise we don't know how many pixels have been scrolled. We might
1498       // solve this in the future by defining virtual wxWindow functions to get
1499       // the scroll position in pixels. Or, each kind of scrolled window has to
1500       // implement backing stores itself, using generic wxWindows code.
1501       wxScrolledWindow* scrolledWindow = wxDynamicCast(this, wxScrolledWindow);
1502       if ( scrolledWindow )
1503       {
1504           int x, y;
1505           scrolledWindow->CalcScrolledPosition(0, 0, &x, &y);
1506
1507           scrollPosX = - x;
1508           scrollPosY = - y;
1509       }
1510
1511       // TODO: This could be optimized further by only copying the areas in the
1512       //       current update region.
1513
1514       // Only blit the part visible in the client area. The backing pixmap
1515       // always starts at 0, 0 but we may be looking at only a portion of it.
1516       wxSize clientArea = GetClientSize();
1517       int toBlitX = m_pixmapWidth - scrollPosX;
1518       int toBlitY = m_pixmapHeight - scrollPosY;
1519
1520       // Copy whichever is samller, the amount of pixmap we have to copy,
1521       // or the size of the client area.
1522       toBlitX = wxMin(toBlitX, clientArea.x);
1523       toBlitY = wxMin(toBlitY, clientArea.y);
1524
1525       // Make sure we're not negative
1526       toBlitX = wxMax(0, toBlitX);
1527       toBlitY = wxMax(0, toBlitY);
1528
1529       XCopyArea
1530       (
1531        XtDisplay(widget),
1532        (Pixmap) m_backingPixmap,
1533        XtWindow (widget),
1534        tempGC,
1535        scrollPosX, scrollPosY, // Start at the scroll position
1536        toBlitX, toBlitY,       // How much of the pixmap to copy
1537        0, 0                    // Destination
1538       );
1539     }
1540     else
1541     {
1542         // Set an erase event first
1543         wxEraseEvent eraseEvent(GetId());
1544         eraseEvent.SetEventObject(this);
1545         GetEventHandler()->ProcessEvent(eraseEvent);
1546
1547         wxPaintEvent event(GetId());
1548         event.SetEventObject(this);
1549         GetEventHandler()->ProcessEvent(event);
1550
1551         m_needsRefresh = FALSE;
1552     }
1553 }
1554
1555 // ----------------------------------------------------------------------------
1556 // event handlers
1557 // ----------------------------------------------------------------------------
1558
1559 // Responds to colour changes: passes event on to children.
1560 void wxWindow::OnSysColourChanged(wxSysColourChangedEvent& event)
1561 {
1562     wxWindowList::Node *node = GetChildren().GetFirst();
1563     while ( node )
1564     {
1565         // Only propagate to non-top-level windows
1566         wxWindow *win = node->GetData();
1567         if ( win->GetParent() )
1568         {
1569             wxSysColourChangedEvent event2;
1570             event.m_eventObject = win;
1571             win->GetEventHandler()->ProcessEvent(event2);
1572         }
1573
1574         node = node->GetNext();
1575     }
1576 }
1577
1578 void wxWindow::OnIdle(wxIdleEvent& event)
1579 {
1580     // This calls the UI-update mechanism (querying windows for
1581     // menu/toolbar/control state information)
1582     UpdateWindowUI();
1583 }
1584
1585 // ----------------------------------------------------------------------------
1586 // accelerators
1587 // ----------------------------------------------------------------------------
1588
1589 bool wxWindow::ProcessAccelerator(wxKeyEvent& event)
1590 {
1591     if (!m_acceleratorTable.Ok())
1592         return FALSE;
1593
1594     int count = m_acceleratorTable.GetCount();
1595     wxAcceleratorEntry* entries = m_acceleratorTable.GetEntries();
1596     int i;
1597     for (i = 0; i < count; i++)
1598     {
1599         wxAcceleratorEntry* entry = & (entries[i]);
1600         if (entry->MatchesEvent(event))
1601         {
1602             // Bingo, we have a match. Now find a control that matches the entry
1603             // command id.
1604
1605             // Need to go up to the top of the window hierarchy, since it might
1606             // be e.g. a menu item
1607             wxWindow* parent = this;
1608             while ( parent && !parent->IsTopLevel() )
1609                 parent = parent->GetParent();
1610
1611             if (!parent)
1612                 return FALSE;
1613
1614             wxFrame* frame = wxDynamicCast(parent, wxFrame);
1615             if ( frame )
1616             {
1617                 // Try for a menu command
1618                 if (frame->GetMenuBar())
1619                 {
1620                     wxMenuItem* item = frame->GetMenuBar()->FindItemForId(entry->GetCommand());
1621                     if (item)
1622                     {
1623                         wxCommandEvent commandEvent(wxEVT_COMMAND_MENU_SELECTED, entry->GetCommand());
1624                         commandEvent.SetEventObject(frame);
1625
1626                         // If ProcessEvent returns TRUE (it was handled), then
1627                         // the calling code will skip the event handling.
1628                         return frame->GetEventHandler()->ProcessEvent(commandEvent);
1629                     }
1630                 }
1631             }
1632
1633             // Find a child matching the command id
1634             wxWindow* child = parent->FindWindow(entry->GetCommand());
1635
1636             // No such child
1637             if (!child)
1638                 return FALSE;
1639
1640             // Now we process those kinds of windows that we can.
1641             // For now, only buttons.
1642             if ( wxDynamicCast(child, wxButton) )
1643             {
1644                 wxCommandEvent commandEvent (wxEVT_COMMAND_BUTTON_CLICKED, child->GetId());
1645                 commandEvent.SetEventObject(child);
1646                 return child->GetEventHandler()->ProcessEvent(commandEvent);
1647             }
1648
1649             return FALSE;
1650         } // matches event
1651     }// for
1652
1653     // We didn't match the key event against an accelerator.
1654     return FALSE;
1655 }
1656
1657 // ============================================================================
1658 // Motif-specific stuff from here on
1659 // ============================================================================
1660
1661 // ----------------------------------------------------------------------------
1662 // function which maintain the global hash table mapping Widgets to wxWindows
1663 // ----------------------------------------------------------------------------
1664
1665 bool wxAddWindowToTable(Widget w, wxWindow *win)
1666 {
1667     wxWindow *oldItem = NULL;
1668     if ((oldItem = (wxWindow *)wxWidgetHashTable->Get ((long) w)))
1669     {
1670         wxLogDebug("Widget table clash: new widget is %ld, %s",
1671                    (long)w, win->GetClassInfo()->GetClassName());
1672         return FALSE;
1673     }
1674
1675     wxWidgetHashTable->Put((long) w, win);
1676
1677     wxLogDebug("Widget 0x%08x <-> window %p (%s)",
1678                w, win, win->GetClassInfo()->GetClassName());
1679
1680     return TRUE;
1681 }
1682
1683 wxWindow *wxGetWindowFromTable(Widget w)
1684 {
1685     return (wxWindow *)wxWidgetHashTable->Get((long) w);
1686 }
1687
1688 void wxDeleteWindowFromTable(Widget w)
1689 {
1690     wxWidgetHashTable->Delete((long)w);
1691 }
1692
1693 // ----------------------------------------------------------------------------
1694 // add/remove window from the table
1695 // ----------------------------------------------------------------------------
1696
1697 // Add to hash table, add event handler
1698 bool wxWindow::AttachWidget (wxWindow* parent, WXWidget mainWidget,
1699                              WXWidget formWidget, int x, int y, int width, int height)
1700 {
1701     wxAddWindowToTable((Widget) mainWidget, this);
1702     if (CanAddEventHandler())
1703     {
1704         XtAddEventHandler((Widget) mainWidget,
1705             ButtonPressMask | ButtonReleaseMask | PointerMotionMask, // | KeyPressMask,
1706             False,
1707             wxPanelItemEventHandler,
1708             (XtPointer) this);
1709     }
1710
1711     if (!formWidget)
1712     {
1713         XtTranslations ptr;
1714         XtOverrideTranslations ((Widget) mainWidget,
1715             ptr = XtParseTranslationTable ("<Configure>: resize()"));
1716         XtFree ((char *) ptr);
1717     }
1718
1719     // Some widgets have a parent form widget, e.g. wxRadioBox
1720     if (formWidget)
1721     {
1722         if (!wxAddWindowToTable((Widget) formWidget, this))
1723             return FALSE;
1724
1725         XtTranslations ptr;
1726         XtOverrideTranslations ((Widget) formWidget,
1727             ptr = XtParseTranslationTable ("<Configure>: resize()"));
1728         XtFree ((char *) ptr);
1729     }
1730
1731     if (x == -1)
1732         x = 0;
1733     if (y == -1)
1734         y = 0;
1735     SetSize (x, y, width, height);
1736
1737     return TRUE;
1738 }
1739
1740 // Remove event handler, remove from hash table
1741 bool wxWindow::DetachWidget(WXWidget widget)
1742 {
1743     if (CanAddEventHandler())
1744     {
1745         XtRemoveEventHandler((Widget) widget,
1746             ButtonPressMask | ButtonReleaseMask | PointerMotionMask, // | KeyPressMask,
1747             False,
1748             wxPanelItemEventHandler,
1749             (XtPointer)this);
1750     }
1751
1752     wxDeleteWindowFromTable((Widget) widget);
1753     return TRUE;
1754 }
1755
1756 // ----------------------------------------------------------------------------
1757 // Motif-specific accessors
1758 // ----------------------------------------------------------------------------
1759
1760 // Get the underlying X window
1761 WXWindow wxWindow::GetXWindow() const
1762 {
1763     Widget wMain = (Widget)GetMainWidget();
1764     if ( wMain )
1765         return (WXWindow) XtWindow(wMain);
1766     else
1767         return (WXWindow) 0;
1768 }
1769
1770 // Get the underlying X display
1771 WXDisplay *wxWindow::GetXDisplay() const
1772 {
1773     Widget wMain = (Widget)GetMainWidget();
1774     if ( wMain )
1775         return (WXDisplay*) XtDisplay(wMain);
1776     else
1777         return (WXDisplay*) NULL;
1778 }
1779
1780 WXWidget wxWindow::GetMainWidget() const
1781 {
1782     if (m_drawingArea)
1783         return m_drawingArea;
1784     else
1785         return m_mainWidget;
1786 }
1787
1788 WXWidget wxWindow::GetClientWidget() const
1789 {
1790     if (m_drawingArea != (WXWidget) 0)
1791         return m_drawingArea;
1792     else
1793         return GetMainWidget();
1794 }
1795
1796 WXWidget wxWindow::GetTopWidget() const
1797 {
1798     return GetMainWidget();
1799 }
1800
1801 WXWidget wxWindow::GetLabelWidget() const
1802 {
1803     return GetMainWidget();
1804 }
1805
1806 // ----------------------------------------------------------------------------
1807 // Motif callbacks
1808 // ----------------------------------------------------------------------------
1809
1810 // All widgets should have this as their resize proc.
1811 // OnSize sent to wxWindow via client data.
1812 void wxWidgetResizeProc(Widget w, XConfigureEvent *event, String args[], int *num_args)
1813 {
1814     wxWindow *win = wxGetWindowFromTable(w);
1815     if (!win)
1816         return;
1817
1818     if (win->PreResize())
1819     {
1820         int width, height;
1821         win->GetSize(&width, &height);
1822         wxSizeEvent sizeEvent(wxSize(width, height), win->GetId());
1823         sizeEvent.SetEventObject(win);
1824         win->GetEventHandler()->ProcessEvent(sizeEvent);
1825     }
1826 }
1827
1828 static void wxCanvasRepaintProc(Widget drawingArea,
1829                                 XtPointer clientData,
1830                                 XmDrawingAreaCallbackStruct * cbs)
1831 {
1832     if (!wxGetWindowFromTable(drawingArea))
1833         return;
1834
1835     XEvent * event = cbs->event;
1836     wxWindow * win = (wxWindow *) clientData;
1837
1838     switch (event->type)
1839     {
1840     case Expose:
1841         {
1842             if (event -> xexpose.count == 0)
1843             {
1844 #if 0
1845                 wxPaintEvent event(win->GetId());
1846                 event.SetEventObject(win);
1847                 win->GetEventHandler()->ProcessEvent(event);
1848 #endif // 0
1849
1850                 win->DoPaint();
1851                 win->ClearUpdateRects();
1852             }
1853             else
1854             {
1855                 win->AddUpdateRect(event->xexpose.x, event->xexpose.y,
1856                                    event->xexpose.width, event->xexpose.height);
1857             }
1858             break;
1859         }
1860     }
1861 }
1862
1863 // Unable to deal with Enter/Leave without a separate EventHandler (Motif 1.1.4)
1864 static void wxCanvasEnterLeave(Widget drawingArea,
1865                                XtPointer clientData,
1866                                XCrossingEvent * event)
1867 {
1868     XmDrawingAreaCallbackStruct cbs;
1869     XEvent ev;
1870
1871     ((XCrossingEvent &) ev) = *event;
1872
1873     cbs.reason = XmCR_INPUT;
1874     cbs.event = &ev;
1875
1876     wxCanvasInputEvent(drawingArea, (XtPointer) NULL, &cbs);
1877 }
1878
1879 // Fix to make it work under Motif 1.0 (!)
1880 static void wxCanvasMotionEvent (Widget drawingArea, XButtonEvent * event)
1881 {
1882 #if XmVersion <= 1000
1883     XmDrawingAreaCallbackStruct cbs;
1884     XEvent ev;
1885
1886     ev = *((XEvent *) event);
1887     cbs.reason = XmCR_INPUT;
1888     cbs.event = &ev;
1889
1890     wxCanvasInputEvent (drawingArea, (XtPointer) NULL, &cbs);
1891 #endif // XmVersion <= 1000
1892 }
1893
1894 static void wxCanvasInputEvent(Widget drawingArea,
1895                                XtPointer data,
1896                                XmDrawingAreaCallbackStruct * cbs)
1897 {
1898     wxWindow *canvas = wxGetWindowFromTable(drawingArea);
1899     XEvent local_event;
1900
1901     if (canvas==NULL)
1902         return;
1903
1904     if (cbs->reason != XmCR_INPUT)
1905         return;
1906
1907     local_event = *(cbs->event);    // We must keep a copy!
1908
1909     switch (local_event.xany.type)
1910     {
1911     case EnterNotify:
1912     case LeaveNotify:
1913     case ButtonPress:
1914     case ButtonRelease:
1915     case MotionNotify:
1916         {
1917             wxEventType eventType = wxEVT_NULL;
1918
1919             if (local_event.xany.type == EnterNotify)
1920             {
1921                 //if (local_event.xcrossing.mode!=NotifyNormal)
1922                 //  return ; // Ignore grab events
1923                 eventType = wxEVT_ENTER_WINDOW;
1924                 //            canvas->GetEventHandler()->OnSetFocus();
1925             }
1926             else if (local_event.xany.type == LeaveNotify)
1927             {
1928                 //if (local_event.xcrossing.mode!=NotifyNormal)
1929                 //  return ; // Ignore grab events
1930                 eventType = wxEVT_LEAVE_WINDOW;
1931                 //            canvas->GetEventHandler()->OnKillFocus();
1932             }
1933             else if (local_event.xany.type == MotionNotify)
1934             {
1935                 eventType = wxEVT_MOTION;
1936                 if (local_event.xmotion.is_hint == NotifyHint)
1937                 {
1938                     Window root, child;
1939                     Display *dpy = XtDisplay (drawingArea);
1940
1941                     XQueryPointer (dpy, XtWindow (drawingArea),
1942                         &root, &child,
1943                         &local_event.xmotion.x_root,
1944                         &local_event.xmotion.y_root,
1945                         &local_event.xmotion.x,
1946                         &local_event.xmotion.y,
1947                         &local_event.xmotion.state);
1948                 }
1949                 else
1950                 {
1951                 }
1952             }
1953
1954             else if (local_event.xany.type == ButtonPress)
1955             {
1956                 if (local_event.xbutton.button == Button1)
1957                 {
1958                     eventType = wxEVT_LEFT_DOWN;
1959                     canvas->SetButton1(TRUE);
1960                 }
1961                 else if (local_event.xbutton.button == Button2)
1962                 {
1963                     eventType = wxEVT_MIDDLE_DOWN;
1964                     canvas->SetButton2(TRUE);
1965                 }
1966                 else if (local_event.xbutton.button == Button3)
1967                 {
1968                     eventType = wxEVT_RIGHT_DOWN;
1969                     canvas->SetButton3(TRUE);
1970                 }
1971             }
1972             else if (local_event.xany.type == ButtonRelease)
1973             {
1974                 if (local_event.xbutton.button == Button1)
1975                 {
1976                     eventType = wxEVT_LEFT_UP;
1977                     canvas->SetButton1(FALSE);
1978                 }
1979                 else if (local_event.xbutton.button == Button2)
1980                 {
1981                     eventType = wxEVT_MIDDLE_UP;
1982                     canvas->SetButton2(FALSE);
1983                 }
1984                 else if (local_event.xbutton.button == Button3)
1985                 {
1986                     eventType = wxEVT_RIGHT_UP;
1987                     canvas->SetButton3(FALSE);
1988                 }
1989             }
1990
1991             wxMouseEvent wxevent (eventType);
1992
1993             wxevent.m_leftDown = ((eventType == wxEVT_LEFT_DOWN)
1994                 || (event_left_is_down (&local_event)
1995                 && (eventType != wxEVT_LEFT_UP)));
1996             wxevent.m_middleDown = ((eventType == wxEVT_MIDDLE_DOWN)
1997                 || (event_middle_is_down (&local_event)
1998                 && (eventType != wxEVT_MIDDLE_UP)));
1999             wxevent.m_rightDown = ((eventType == wxEVT_RIGHT_DOWN)
2000                 || (event_right_is_down (&local_event)
2001                 && (eventType != wxEVT_RIGHT_UP)));
2002
2003             wxevent.m_shiftDown = local_event.xbutton.state & ShiftMask;
2004             wxevent.m_controlDown = local_event.xbutton.state & ControlMask;
2005             wxevent.m_altDown = local_event.xbutton.state & Mod3Mask;
2006             wxevent.m_metaDown = local_event.xbutton.state & Mod1Mask;
2007             wxevent.SetTimestamp(local_event.xbutton.time);
2008
2009             // Now check if we need to translate this event into a double click
2010             if (TRUE) // canvas->doubleClickAllowed)
2011             {
2012                 if (wxevent.ButtonDown())
2013                 {
2014                     long dclickTime = XtGetMultiClickTime((Display*) wxGetDisplay());
2015
2016                     // get button and time-stamp
2017                     int button = 0;
2018                     if (wxevent.LeftDown())
2019                         button = 1;
2020                     else if (wxevent.MiddleDown())
2021                         button = 2;
2022                     else if (wxevent.RightDown())
2023                         button = 3;
2024                     long ts = wxevent.GetTimestamp();
2025
2026                     // check, if single or double click
2027                     int buttonLast = canvas->GetLastClickedButton();
2028                     long lastTS = canvas->GetLastClickTime();
2029                     if ( buttonLast && buttonLast == button && (ts - lastTS) < dclickTime )
2030                     {
2031                         // I have a dclick
2032                         canvas->SetLastClick(0, ts);
2033                         switch ( eventType )
2034                         {
2035                         case wxEVT_LEFT_DOWN:
2036                             wxevent.SetEventType(wxEVT_LEFT_DCLICK);
2037                             break;
2038                         case wxEVT_MIDDLE_DOWN:
2039                             wxevent.SetEventType(wxEVT_MIDDLE_DCLICK);
2040                             break;
2041                         case wxEVT_RIGHT_DOWN:
2042                             wxevent.SetEventType(wxEVT_RIGHT_DCLICK);
2043                             break;
2044
2045                         default :
2046                             break;
2047                         }
2048
2049                     }
2050                     else
2051                     {
2052                         // not fast enough or different button
2053                         canvas->SetLastClick(button, ts);
2054                     }
2055                 }
2056             }
2057
2058             wxevent.SetId(canvas->GetId());
2059             wxevent.SetEventObject(canvas);
2060             wxevent.m_x = local_event.xbutton.x;
2061             wxevent.m_y = local_event.xbutton.y;
2062             canvas->GetEventHandler()->ProcessEvent (wxevent);
2063 #if 0
2064             if (eventType == wxEVT_ENTER_WINDOW ||
2065                     eventType == wxEVT_LEAVE_WINDOW ||
2066                     eventType == wxEVT_MOTION
2067                )
2068                 return;
2069 #endif // 0
2070             break;
2071       }
2072     case KeyPress:
2073         {
2074             KeySym keySym;
2075 #if 0
2076             XComposeStatus compose;
2077             (void) XLookupString ((XKeyEvent *) & local_event, wxBuffer, 20, &keySym, &compose);
2078 #endif // 0
2079
2080             (void) XLookupString ((XKeyEvent *) & local_event, wxBuffer, 20, &keySym, NULL);
2081             int id = wxCharCodeXToWX (keySym);
2082
2083             wxEventType eventType = wxEVT_CHAR;
2084
2085             wxKeyEvent event (eventType);
2086
2087             if (local_event.xkey.state & ShiftMask)
2088                 event.m_shiftDown = TRUE;
2089             if (local_event.xkey.state & ControlMask)
2090                 event.m_controlDown = TRUE;
2091             if (local_event.xkey.state & Mod3Mask)
2092                 event.m_altDown = TRUE;
2093             if (local_event.xkey.state & Mod1Mask)
2094                 event.m_metaDown = TRUE;
2095             event.SetEventObject(canvas);
2096             event.m_keyCode = id;
2097             event.SetTimestamp(local_event.xkey.time);
2098
2099             if (id > -1)
2100             {
2101                 // Implement wxFrame::OnCharHook by checking ancestor.
2102                 wxWindow *parent = canvas->GetParent();
2103                 while (parent && !parent->IsKindOf(CLASSINFO(wxFrame)))
2104                     parent = parent->GetParent();
2105
2106                 if (parent)
2107                 {
2108                     event.SetEventType(wxEVT_CHAR_HOOK);
2109                     if (parent->GetEventHandler()->ProcessEvent(event))
2110                         return;
2111                 }
2112
2113                 // For simplicity, OnKeyDown is the same as OnChar
2114                 // TODO: filter modifier key presses from OnChar
2115                 event.SetEventType(wxEVT_KEY_DOWN);
2116
2117                 // Only process OnChar if OnKeyDown didn't swallow it
2118                 if (!canvas->GetEventHandler()->ProcessEvent (event))
2119                 {
2120                   event.SetEventType(wxEVT_CHAR);
2121                   canvas->GetEventHandler()->ProcessEvent (event);
2122         }
2123             }
2124             break;
2125         }
2126     case KeyRelease:
2127         {
2128             KeySym keySym;
2129             (void) XLookupString ((XKeyEvent *) & local_event, wxBuffer, 20, &keySym, NULL);
2130             int id = wxCharCodeXToWX (keySym);
2131
2132             wxKeyEvent event (wxEVT_KEY_UP);
2133
2134             if (local_event.xkey.state & ShiftMask)
2135                 event.m_shiftDown = TRUE;
2136             if (local_event.xkey.state & ControlMask)
2137                 event.m_controlDown = TRUE;
2138             if (local_event.xkey.state & Mod3Mask)
2139                 event.m_altDown = TRUE;
2140             if (local_event.xkey.state & Mod1Mask)
2141                 event.m_metaDown = TRUE;
2142             event.SetEventObject(canvas);
2143             event.m_keyCode = id;
2144             event.SetTimestamp(local_event.xkey.time);
2145
2146             if (id > -1)
2147             {
2148                 canvas->GetEventHandler()->ProcessEvent (event);
2149             }
2150             break;
2151         }
2152     case FocusIn:
2153         {
2154             if (local_event.xfocus.detail != NotifyPointer)
2155             {
2156                 wxFocusEvent event(wxEVT_SET_FOCUS, canvas->GetId());
2157                 event.SetEventObject(canvas);
2158                 canvas->GetEventHandler()->ProcessEvent(event);
2159             }
2160             break;
2161         }
2162     case FocusOut:
2163         {
2164             if (local_event.xfocus.detail != NotifyPointer)
2165             {
2166                 wxFocusEvent event(wxEVT_KILL_FOCUS, canvas->GetId());
2167                 event.SetEventObject(canvas);
2168                 canvas->GetEventHandler()->ProcessEvent(event);
2169             }
2170             break;
2171         }
2172     default:
2173         break;
2174     }
2175 }
2176
2177 static void wxPanelItemEventHandler(Widget    wid,
2178                                     XtPointer client_data,
2179                                     XEvent*   event,
2180                                     Boolean  *continueToDispatch)
2181 {
2182     // Widget can be a label or the actual widget.
2183
2184     wxWindow *window = wxGetWindowFromTable(wid);
2185     if (window)
2186     {
2187         wxMouseEvent wxevent(0);
2188         if (wxTranslateMouseEvent(wxevent, window, wid, event))
2189         {
2190             window->GetEventHandler()->ProcessEvent(wxevent);
2191         }
2192     }
2193
2194     // TODO: probably the key to allowing default behaviour to happen. Say we
2195     // set a m_doDefault flag to FALSE at the start of this function. Then in
2196     // e.g. wxWindow::OnMouseEvent we can call Default() which sets this flag to
2197     // TRUE, indicating that default processing can happen. Thus, behaviour can
2198     // appear to be overridden just by adding an event handler and not calling
2199     // wxWindow::OnWhatever. ALSO, maybe we can use this instead of the current
2200     // way of handling drawing area events, to simplify things.
2201     *continueToDispatch = True;
2202 }
2203
2204 static void wxScrollBarCallback(Widget scrollbar,
2205                                 XtPointer clientData,
2206                                 XmScaleCallbackStruct *cbs)
2207 {
2208     wxWindow *win = wxGetWindowFromTable(scrollbar);
2209     int orientation = (int) clientData;
2210
2211     wxEventType eventType = wxEVT_NULL;
2212     switch (cbs->reason)
2213     {
2214     case XmCR_INCREMENT:
2215         {
2216             eventType = wxEVT_SCROLL_LINEDOWN;
2217             break;
2218         }
2219     case XmCR_DECREMENT:
2220         {
2221             eventType = wxEVT_SCROLL_LINEUP;
2222             break;
2223         }
2224     case XmCR_DRAG:
2225         {
2226             eventType = wxEVT_SCROLL_THUMBTRACK;
2227             break;
2228         }
2229     case XmCR_VALUE_CHANGED:
2230         {
2231             // TODO: Should this be intercepted too, or will it cause
2232             // duplicate events?
2233             eventType = wxEVT_SCROLL_THUMBTRACK;
2234             break;
2235         }
2236     case XmCR_PAGE_INCREMENT:
2237         {
2238             eventType = wxEVT_SCROLL_PAGEDOWN;
2239             break;
2240         }
2241     case XmCR_PAGE_DECREMENT:
2242         {
2243             eventType = wxEVT_SCROLL_PAGEUP;
2244             break;
2245         }
2246     case XmCR_TO_TOP:
2247         {
2248             eventType = wxEVT_SCROLL_TOP;
2249             break;
2250         }
2251     case XmCR_TO_BOTTOM:
2252         {
2253             eventType = wxEVT_SCROLL_BOTTOM;
2254             break;
2255         }
2256     default:
2257         {
2258             // Should never get here
2259             wxFAIL_MSG("Unknown scroll event.");
2260             break;
2261         }
2262     }
2263
2264     wxScrollEvent event(eventType, win->GetId());
2265     event.SetEventObject(win);
2266     event.SetPosition(cbs->value);
2267     event.SetOrientation( (orientation == XmHORIZONTAL) ? wxHORIZONTAL : wxVERTICAL );
2268
2269     win->GetEventHandler()->ProcessEvent(event);
2270 }
2271
2272 // For repainting arbitrary windows
2273 void wxUniversalRepaintProc(Widget w, XtPointer WXUNUSED(c_data), XEvent *event, char *)
2274 {
2275     Window window;
2276     Display *display;
2277
2278     wxWindow* win = wxGetWindowFromTable(w);
2279     if (!win)
2280         return;
2281
2282     switch(event -> type)
2283     {
2284     case Expose:
2285         {
2286             window = (Window) win -> GetXWindow();
2287             display = (Display *) win -> GetXDisplay();
2288
2289             if (event -> xexpose.count == 0)
2290             {
2291                 win->DoPaint();
2292
2293                 win->ClearUpdateRects();
2294             }
2295             else
2296             {
2297                 win->AddUpdateRect(event->xexpose.x, event->xexpose.y,
2298                                    event->xexpose.width, event->xexpose.height);
2299             }
2300
2301             break;
2302         }
2303     }
2304 }
2305
2306 // ----------------------------------------------------------------------------
2307 // CanvaseXXXSize() functions
2308 // ----------------------------------------------------------------------------
2309
2310 // SetSize, but as per old wxCanvas (with drawing widget etc.)
2311 void wxWindow::CanvasSetSize (int x, int y, int w, int h, int sizeFlags)
2312 {
2313     // A bit of optimization to help sort out the flickers.
2314     int oldX, oldY, oldW, oldH;
2315     GetSize(& oldW, & oldH);
2316     GetPosition(& oldX, & oldY);
2317
2318     bool useOldPos = FALSE;
2319     bool useOldSize = FALSE;
2320
2321     if ((x == -1) && (x == -1) && ((sizeFlags & wxSIZE_ALLOW_MINUS_ONE) == 0))
2322         useOldPos = TRUE;
2323     else if (x == oldX && y == oldY)
2324         useOldPos = TRUE;
2325
2326     if ((w == -1) && (h == -1))
2327         useOldSize = TRUE;
2328     else if (w == oldW && h == oldH)
2329         useOldSize = TRUE;
2330
2331     if (!wxNoOptimize::CanOptimize())
2332     {
2333         useOldSize = FALSE; useOldPos = FALSE;
2334     }
2335
2336     if (useOldPos && useOldSize)
2337         return;
2338
2339     Widget drawingArea = (Widget) m_drawingArea;
2340     bool managed = XtIsManaged(m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow);
2341
2342     if (managed)
2343         XtUnmanageChild (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow);
2344     XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_ANY, NULL);
2345
2346     int xx = x; int yy = y;
2347     AdjustForParentClientOrigin(xx, yy, sizeFlags);
2348
2349     if (!useOldPos)
2350     {
2351         if (x > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2352         {
2353             XtVaSetValues (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow,
2354                 XmNx, xx, NULL);
2355         }
2356
2357         if (y > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2358         {
2359             XtVaSetValues (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow,
2360                 XmNy, yy, NULL);
2361         }
2362     }
2363
2364     if (!useOldSize)
2365     {
2366
2367         if (w > -1)
2368         {
2369             if (m_borderWidget)
2370             {
2371                 XtVaSetValues ((Widget) m_borderWidget, XmNwidth, w, NULL);
2372                 short thick, margin;
2373                 XtVaGetValues ((Widget) m_borderWidget,
2374                     XmNshadowThickness, &thick,
2375                     XmNmarginWidth, &margin,
2376                     NULL);
2377                 w -= 2 * (thick + margin);
2378             }
2379
2380             XtVaSetValues ((Widget) m_scrolledWindow, XmNwidth, w, NULL);
2381
2382             Dimension spacing;
2383             Widget sbar;
2384             XtVaGetValues ((Widget) m_scrolledWindow,
2385                 XmNspacing, &spacing,
2386                 XmNverticalScrollBar, &sbar,
2387                 NULL);
2388             Dimension wsbar;
2389             if (sbar)
2390                 XtVaGetValues (sbar, XmNwidth, &wsbar, NULL);
2391             else
2392                 wsbar = 0;
2393
2394             w -= (spacing + wsbar);
2395
2396 #if 0
2397             XtVaSetValues(drawingArea, XmNwidth, w, NULL);
2398 #endif // 0
2399         }
2400         if (h > -1)
2401         {
2402             if (m_borderWidget)
2403             {
2404                 XtVaSetValues ((Widget) m_borderWidget, XmNheight, h, NULL);
2405                 short thick, margin;
2406                 XtVaGetValues ((Widget) m_borderWidget,
2407                     XmNshadowThickness, &thick,
2408                     XmNmarginHeight, &margin,
2409                     NULL);
2410                 h -= 2 * (thick + margin);
2411             }
2412
2413             XtVaSetValues ((Widget) m_scrolledWindow, XmNheight, h, NULL);
2414
2415             Dimension spacing;
2416             Widget sbar;
2417             XtVaGetValues ((Widget) m_scrolledWindow,
2418                 XmNspacing, &spacing,
2419                 XmNhorizontalScrollBar, &sbar,
2420                 NULL);
2421             Dimension wsbar;
2422             if (sbar)
2423                 XtVaGetValues (sbar, XmNheight, &wsbar, NULL);
2424             else
2425                 wsbar = 0;
2426
2427             h -= (spacing + wsbar);
2428
2429 #if 0
2430             XtVaSetValues(drawingArea, XmNheight, h, NULL);
2431 #endif // 0
2432         }
2433     }
2434
2435     if (managed)
2436         XtManageChild (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow);
2437     XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_NONE, NULL);
2438
2439 #if 0
2440     int ww, hh;
2441     GetClientSize (&ww, &hh);
2442     wxSizeEvent sizeEvent(wxSize(ww, hh), GetId());
2443     sizeEvent.SetEventObject(this);
2444
2445     GetEventHandler()->ProcessEvent(sizeEvent);
2446 #endif // 0
2447 }
2448
2449 void wxWindow::CanvasSetClientSize (int w, int h)
2450 {
2451     Widget drawingArea = (Widget) m_drawingArea;
2452
2453     XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_ANY, NULL);
2454
2455     if (w > -1)
2456         XtVaSetValues(drawingArea, XmNwidth, w, NULL);
2457     if (h > -1)
2458         XtVaSetValues(drawingArea, XmNheight, h, NULL);
2459
2460 #if 0
2461     // TODO: is this necessary?
2462     allowRepainting = FALSE;
2463
2464     XSync (XtDisplay (drawingArea), FALSE);
2465     XEvent event;
2466     while (XtAppPending (wxTheApp->appContext))
2467     {
2468         XFlush (XtDisplay (drawingArea));
2469         XtAppNextEvent (wxTheApp->appContext, &event);
2470         XtDispatchEvent (&event);
2471     }
2472 #endif // 0
2473
2474     XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_NONE, NULL);
2475
2476 #if 0
2477     allowRepainting = TRUE;
2478     DoRefresh ();
2479
2480     wxSizeEvent sizeEvent(wxSize(w, h), GetId());
2481     sizeEvent.SetEventObject(this);
2482
2483     GetEventHandler()->ProcessEvent(sizeEvent);
2484 #endif // 0
2485 }
2486
2487 void wxWindow::CanvasGetClientSize (int *w, int *h) const
2488 {
2489     // Must return the same thing that was set via SetClientSize
2490     Dimension xx, yy;
2491     XtVaGetValues ((Widget) m_drawingArea, XmNwidth, &xx, XmNheight, &yy, NULL);
2492     *w = xx;
2493     *h = yy;
2494 }
2495
2496 void wxWindow::CanvasGetSize (int *w, int *h) const
2497 {
2498     Dimension xx, yy;
2499     if ((Widget) m_borderWidget)
2500         XtVaGetValues ((Widget) m_borderWidget, XmNwidth, &xx, XmNheight, &yy, NULL);
2501     else if ((Widget) m_scrolledWindow)
2502         XtVaGetValues ((Widget) m_scrolledWindow, XmNwidth, &xx, XmNheight, &yy, NULL);
2503     else
2504         XtVaGetValues ((Widget) m_drawingArea, XmNwidth, &xx, XmNheight, &yy, NULL);
2505
2506     *w = xx;
2507     *h = yy;
2508 }
2509
2510 void wxWindow::CanvasGetPosition (int *x, int *y) const
2511 {
2512     Position xx, yy;
2513     XtVaGetValues (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow, XmNx, &xx, XmNy, &yy, NULL);
2514
2515     // We may be faking the client origin.
2516     // So a window that's really at (0, 30) may appear
2517     // (to wxWin apps) to be at (0, 0).
2518     if (GetParent())
2519     {
2520         wxPoint pt(GetParent()->GetClientAreaOrigin());
2521         xx -= pt.x;
2522         yy -= pt.y;
2523     }
2524
2525     *x = xx;
2526     *y = yy;
2527 }
2528
2529 // ----------------------------------------------------------------------------
2530 // TranslateXXXEvent() functions
2531 // ----------------------------------------------------------------------------
2532
2533 bool wxTranslateMouseEvent(wxMouseEvent& wxevent, wxWindow *win, Widget widget, XEvent *xevent)
2534 {
2535     switch (xevent->xany.type)
2536     {
2537     case EnterNotify:
2538     case LeaveNotify:
2539     case ButtonPress:
2540     case ButtonRelease:
2541     case MotionNotify:
2542         {
2543             wxEventType eventType = wxEVT_NULL;
2544
2545             if (xevent->xany.type == LeaveNotify)
2546             {
2547                 win->SetButton1(FALSE);
2548                 win->SetButton2(FALSE);
2549                 win->SetButton3(FALSE);
2550                 return FALSE;
2551             }
2552             else if (xevent->xany.type == MotionNotify)
2553             {
2554                 eventType = wxEVT_MOTION;
2555             }
2556             else if (xevent->xany.type == ButtonPress)
2557             {
2558                 if (xevent->xbutton.button == Button1)
2559                 {
2560                     eventType = wxEVT_LEFT_DOWN;
2561                     win->SetButton1(TRUE);
2562                 }
2563                 else if (xevent->xbutton.button == Button2)
2564                 {
2565                     eventType = wxEVT_MIDDLE_DOWN;
2566                     win->SetButton2(TRUE);
2567                 }
2568                 else if (xevent->xbutton.button == Button3)
2569                 {
2570                     eventType = wxEVT_RIGHT_DOWN;
2571                     win->SetButton3(TRUE);
2572                 }
2573             }
2574             else if (xevent->xany.type == ButtonRelease)
2575             {
2576                 if (xevent->xbutton.button == Button1)
2577                 {
2578                     eventType = wxEVT_LEFT_UP;
2579                     win->SetButton1(FALSE);
2580                 }
2581                 else if (xevent->xbutton.button == Button2)
2582                 {
2583                     eventType = wxEVT_MIDDLE_UP;
2584                     win->SetButton2(FALSE);
2585                 }
2586                 else if (xevent->xbutton.button == Button3)
2587                 {
2588                     eventType = wxEVT_RIGHT_UP;
2589                     win->SetButton3(FALSE);
2590                 }
2591                 else return FALSE;
2592             }
2593             else
2594             {
2595                 return FALSE;
2596             }
2597
2598             wxevent.SetEventType(eventType);
2599
2600             Position x1, y1;
2601             XtVaGetValues(widget, XmNx, &x1, XmNy, &y1, NULL);
2602
2603             int x2, y2;
2604             win->GetPosition(&x2, &y2);
2605
2606             // The button x/y must be translated to wxWindows
2607             // window space - the widget might be a label or button,
2608             // within a form.
2609             int dx = 0;
2610             int dy = 0;
2611             if (widget != (Widget)win->GetMainWidget())
2612             {
2613                 dx = x1;
2614                 dy = y1;
2615             }
2616
2617             wxevent.m_x = xevent->xbutton.x + dx;
2618             wxevent.m_y = xevent->xbutton.y + dy;
2619
2620             wxevent.m_leftDown = ((eventType == wxEVT_LEFT_DOWN)
2621                 || (event_left_is_down (xevent)
2622                 && (eventType != wxEVT_LEFT_UP)));
2623             wxevent.m_middleDown = ((eventType == wxEVT_MIDDLE_DOWN)
2624                 || (event_middle_is_down (xevent)
2625                 && (eventType != wxEVT_MIDDLE_UP)));
2626             wxevent.m_rightDown = ((eventType == wxEVT_RIGHT_DOWN)
2627                 || (event_right_is_down (xevent)
2628                 && (eventType != wxEVT_RIGHT_UP)));
2629
2630             wxevent.m_shiftDown = xevent->xbutton.state & ShiftMask;
2631             wxevent.m_controlDown = xevent->xbutton.state & ControlMask;
2632             return TRUE;
2633         }
2634     }
2635     return FALSE;
2636 }
2637
2638 bool wxTranslateKeyEvent(wxKeyEvent& wxevent, wxWindow *win, Widget widget, XEvent *xevent)
2639 {
2640     switch (xevent->xany.type)
2641     {
2642     case KeyPress:
2643     case KeyRelease:
2644         {
2645             char buf[20];
2646
2647             KeySym keySym;
2648 #if 0
2649             XComposeStatus compose;
2650             (void) XLookupString ((XKeyEvent *) xevent, buf, 20, &keySym, &compose);
2651 #endif // 0
2652             (void) XLookupString ((XKeyEvent *) xevent, buf, 20, &keySym, NULL);
2653             int id = wxCharCodeXToWX (keySym);
2654
2655             if (xevent->xkey.state & ShiftMask)
2656                 wxevent.m_shiftDown = TRUE;
2657             if (xevent->xkey.state & ControlMask)
2658                 wxevent.m_controlDown = TRUE;
2659             if (xevent->xkey.state & Mod3Mask)
2660                 wxevent.m_altDown = TRUE;
2661             if (xevent->xkey.state & Mod1Mask)
2662                 wxevent.m_metaDown = TRUE;
2663             wxevent.SetEventObject(win);
2664             wxevent.m_keyCode = id;
2665             wxevent.SetTimestamp(xevent->xkey.time);
2666
2667             wxevent.m_x = xevent->xbutton.x;
2668             wxevent.m_y = xevent->xbutton.y;
2669
2670             if (id > -1)
2671                 return TRUE;
2672             else
2673                 return FALSE;
2674             break;
2675         }
2676     default:
2677         break;
2678     }
2679     return FALSE;
2680 }
2681
2682 // ----------------------------------------------------------------------------
2683 // Colour stuff
2684 // ----------------------------------------------------------------------------
2685
2686 #define YAllocColor XAllocColor
2687 XColor g_itemColors[5];
2688 int wxComputeColours (Display *display, wxColour * back, wxColour * fore)
2689 {
2690     int result;
2691     static XmColorProc colorProc;
2692
2693     result = wxNO_COLORS;
2694
2695     if (back)
2696     {
2697         g_itemColors[0].red = (((long) back->Red ()) << 8);
2698         g_itemColors[0].green = (((long) back->Green ()) << 8);
2699         g_itemColors[0].blue = (((long) back->Blue ()) << 8);
2700         g_itemColors[0].flags = DoRed | DoGreen | DoBlue;
2701         if (colorProc == (XmColorProc) NULL)
2702         {
2703             // Get a ptr to the actual function
2704             colorProc = XmSetColorCalculation ((XmColorProc) NULL);
2705             // And set it back to motif.
2706             XmSetColorCalculation (colorProc);
2707         }
2708         (*colorProc) (&g_itemColors[wxBACK_INDEX],
2709             &g_itemColors[wxFORE_INDEX],
2710             &g_itemColors[wxSELE_INDEX],
2711             &g_itemColors[wxTOPS_INDEX],
2712             &g_itemColors[wxBOTS_INDEX]);
2713         result = wxBACK_COLORS;
2714     }
2715     if (fore)
2716     {
2717         g_itemColors[wxFORE_INDEX].red = (((long) fore->Red ()) << 8);
2718         g_itemColors[wxFORE_INDEX].green = (((long) fore->Green ()) << 8);
2719         g_itemColors[wxFORE_INDEX].blue = (((long) fore->Blue ()) << 8);
2720         g_itemColors[wxFORE_INDEX].flags = DoRed | DoGreen | DoBlue;
2721         if (result == wxNO_COLORS)
2722             result = wxFORE_COLORS;
2723     }
2724
2725     Display *dpy = display;
2726     Colormap cmap = (Colormap) wxTheApp->GetMainColormap((WXDisplay*) dpy);
2727
2728     if (back)
2729     {
2730         /* 5 Colours to allocate */
2731         for (int i = 0; i < 5; i++)
2732             if (!YAllocColor (dpy, cmap, &g_itemColors[i]))
2733                 result = wxNO_COLORS;
2734     }
2735     else if (fore)
2736     {
2737         /* Only 1 colour to allocate */
2738         if (!YAllocColor (dpy, cmap, &g_itemColors[wxFORE_INDEX]))
2739             result = wxNO_COLORS;
2740     }
2741
2742     return (result);
2743
2744 }
2745
2746 // Changes the foreground and background colours to be derived from the current
2747 // background colour. To change the foreground colour, you must call
2748 // SetForegroundColour explicitly.
2749 void wxWindow::ChangeBackgroundColour()
2750 {
2751     WXWidget mainWidget = GetMainWidget();
2752     if ( mainWidget )
2753         DoChangeBackgroundColour(mainWidget, m_backgroundColour);
2754
2755     // This not necessary
2756 #if 0
2757
2758     if (m_scrolledWindow && (GetMainWidget() != m_scrolledWindow))
2759     {
2760         DoChangeBackgroundColour(m_scrolledWindow, m_backgroundColour);
2761         // Have to set the scrollbar colours back since
2762         // the scrolled window seemed to change them
2763         wxColour backgroundColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE);
2764
2765         if (m_hScrollBar)
2766             DoChangeBackgroundColour(m_hScrollBar, backgroundColour);
2767         if (m_vScrollBar)
2768             DoChangeBackgroundColour(m_vScrollBar, backgroundColour);
2769     }
2770 #endif
2771 }
2772
2773 void wxWindow::ChangeForegroundColour()
2774 {
2775     WXWidget mainWidget = GetMainWidget();
2776     if ( mainWidget )
2777         DoChangeForegroundColour(mainWidget, m_foregroundColour);
2778     if ( m_scrolledWindow && mainWidget != m_scrolledWindow )
2779         DoChangeForegroundColour(m_scrolledWindow, m_foregroundColour);
2780 }
2781
2782 // Change a widget's foreground and background colours.
2783 void wxWindow::DoChangeForegroundColour(WXWidget widget, wxColour& foregroundColour)
2784 {
2785     // When should we specify the foreground, if it's calculated
2786     // by wxComputeColours?
2787     // Solution: say we start with the default (computed) foreground colour.
2788     // If we call SetForegroundColour explicitly for a control or window,
2789     // then the foreground is changed.
2790     // Therefore SetBackgroundColour computes the foreground colour, and
2791     // SetForegroundColour changes the foreground colour. The ordering is
2792     // important.
2793
2794     Widget w = (Widget)widget;
2795     XtVaSetValues(
2796                   w,
2797                   XmNforeground, foregroundColour.AllocColour(XtDisplay(w)),
2798                   NULL
2799                  );
2800 }
2801
2802 void wxWindow::DoChangeBackgroundColour(WXWidget widget, wxColour& backgroundColour, bool changeArmColour)
2803 {
2804     wxComputeColours (XtDisplay((Widget) widget), & backgroundColour,
2805         (wxColour*) NULL);
2806
2807     XtVaSetValues ((Widget) widget,
2808         XmNbackground, g_itemColors[wxBACK_INDEX].pixel,
2809         XmNtopShadowColor, g_itemColors[wxTOPS_INDEX].pixel,
2810         XmNbottomShadowColor, g_itemColors[wxBOTS_INDEX].pixel,
2811         XmNforeground, g_itemColors[wxFORE_INDEX].pixel,
2812         NULL);
2813
2814     if (changeArmColour)
2815         XtVaSetValues ((Widget) widget,
2816         XmNarmColor, g_itemColors[wxSELE_INDEX].pixel,
2817         NULL);
2818 }
2819
2820 bool wxWindow::SetBackgroundColour(const wxColour& col)
2821 {
2822     if ( !wxWindowBase::SetBackgroundColour(col) )
2823         return FALSE;
2824
2825     ChangeBackgroundColour();
2826
2827     return TRUE;
2828 }
2829
2830 bool wxWindow::SetForegroundColour(const wxColour& col)
2831 {
2832     if ( !wxWindowBase::SetForegroundColour(col) )
2833         return FALSE;
2834
2835     ChangeForegroundColour();
2836
2837     return TRUE;
2838 }
2839
2840 void wxWindow::ChangeFont(bool keepOriginalSize)
2841 {
2842     // Note that this causes the widget to be resized back
2843     // to its original size! We therefore have to set the size
2844     // back again. TODO: a better way in Motif?
2845     Widget w = (Widget) GetLabelWidget(); // Usually the main widget
2846     if (w && m_font.Ok())
2847     {
2848         int width, height, width1, height1;
2849         GetSize(& width, & height);
2850
2851         // lesstif 0.87 hangs here
2852 #ifndef LESSTIF_VERSION
2853         XtVaSetValues (w,
2854             XmNfontList, (XmFontList) m_font.GetFontList(1.0, XtDisplay(w)),
2855             NULL);
2856 #endif
2857
2858         GetSize(& width1, & height1);
2859         if (keepOriginalSize && (width != width1 || height != height1))
2860         {
2861             SetSize(-1, -1, width, height);
2862         }
2863     }
2864 }
2865
2866 // ----------------------------------------------------------------------------
2867 // global functions
2868 // ----------------------------------------------------------------------------
2869
2870 wxWindow *wxGetActiveWindow()
2871 {
2872     // TODO
2873     return NULL;
2874 }
2875
2876 // ----------------------------------------------------------------------------
2877 // wxNoOptimize: switch off size optimization
2878 // ----------------------------------------------------------------------------
2879
2880 int wxNoOptimize::ms_count = 0;