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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  21     #pragma implementation "window.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __VMS
  28 #define XtDisplay XTDISPLAY
  29 #define XtWindow XTWINDOW
  30 #define XtScreen XTSCREEN
  31 #endif
  32
  33 #include "wx/setup.h"
  34 #include "wx/menu.h"
  35 #include "wx/dc.h"
  36 #include "wx/dcclient.h"
  37 #include "wx/utils.h"
  38 #include "wx/app.h"
  39 #include "wx/layout.h"
  40 #include "wx/button.h"
  41 #include "wx/settings.h"
  42 #include "wx/frame.h"
  43 #include "wx/scrolwin.h"
  44 #include "wx/module.h"
  45 #include "wx/menuitem.h"
  46 #include "wx/log.h"
  47 #include "wx/evtloop.h"
  48 #include "wx/hash.h"
  49
  50 #if  wxUSE_DRAG_AND_DROP
  51     #include "wx/dnd.h"
  52 #endif
  53
  54 // DoSetSizeIntr and DoMoveWindowIntr
  55 // PROBLEM:
  56 // under Motif composite controls (such as wxCalendarCtrl or generic wxSpinCtrl
  57 // did not work and/or segfaulted because
  58 // 1) wxWindow::Create calls SetSize,
  59 //    which results in a call to DoSetSize much earlier than in the other ports
  60 // 2) if wxWindow::Create is called (wxControl::Create calls it)
  61 //    then DoSetSize is never called, causing layout problems in composite
  62 //    controls
  63 //
  64 // SOLUTION:
  65 // 1) don't call SetSize, DoSetSize, DoMoveWindow, DoGetPosition,
  66 //    DoSetPosition directly or indirectly from wxWindow::Create
  67 // 2) call DoMoveWindow from DoSetSize, allowing controls to override it
  68
  69 #ifdef __VMS__
  70 #pragma message disable nosimpint
  71 #endif
  72 #include <Xm/Xm.h>
  73
  74 #include <Xm/DrawingA.h>
  75 #include <Xm/ScrolledW.h>
  76 #include <Xm/ScrollBar.h>
  77 #include <Xm/Frame.h>
  78 #include <Xm/Label.h>
  79 #include <Xm/RowColumn.h>           // for XmMenuPosition
  80 #ifdef __VMS__
  81 #pragma message enable nosimpint
  82 #endif
  83
  84 #include "wx/motif/private.h"
  85
  86 #include <string.h>
  87
  88 // ----------------------------------------------------------------------------
  89 // global variables for this module
  90 // ----------------------------------------------------------------------------
  91
  92 extern wxHashTable *wxWidgetHashTable;
  93 static wxWindow* g_captureWindow = NULL;
  94
  95
  96 // ----------------------------------------------------------------------------
  97 // private functions
  98 // ----------------------------------------------------------------------------
  99
 100 static void wxCanvasRepaintProc(Widget, XtPointer, XmDrawingAreaCallbackStruct * cbs);
 101 static void wxCanvasInputEvent(Widget drawingArea, XtPointer data, XmDrawingAreaCallbackStruct * cbs);
 102 static void wxCanvasMotionEvent(Widget, XButtonEvent * event);
 103 static void wxCanvasEnterLeave(Widget drawingArea, XtPointer clientData, XCrossingEvent * event);
 104 static void wxScrollBarCallback(Widget widget, XtPointer clientData,
 105                                 XmScrollBarCallbackStruct *cbs);
 106 static void wxPanelItemEventHandler(Widget    wid,
 107                                     XtPointer client_data,
 108                                     XEvent*   event,
 109                                     Boolean  *continueToDispatch);
 110
 111 // unused for now
 112 #if 0
 113
 114 // Helper function for 16-bit fonts
 115 static int str16len(const char *s)
 116 {
 117     int count = 0;
 118
 119     while (s[0] && s[1]) {
 120         count++;
 121         s += 2;
 122     }
 123
 124     return count;
 125 }
 126
 127 #endif // 0
 128
 129 // ----------------------------------------------------------------------------
 130 // macros
 131 // ----------------------------------------------------------------------------
 132
 133 #define event_left_is_down(x) ((x)->xbutton.state & Button1Mask)
 134 #define event_middle_is_down(x) ((x)->xbutton.state & Button2Mask)
 135 #define event_right_is_down(x) ((x)->xbutton.state & Button3Mask)
 136
 137 // ----------------------------------------------------------------------------
 138 // event tables
 139 // ----------------------------------------------------------------------------
 140
 141     IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxWindowBase)
 142
 143     BEGIN_EVENT_TABLE(wxWindow, wxWindowBase)
 144         EVT_SYS_COLOUR_CHANGED(wxWindow::OnSysColourChanged)
 145     END_EVENT_TABLE()
 146
 147 // ============================================================================
 148 // implementation
 149 // ============================================================================
 150
 151 // ----------------------------------------------------------------------------
 152 // helper functions
 153 // ----------------------------------------------------------------------------
 154
 155 void wxWindow::UnmanageAndDestroy(WXWidget widget)
 156 {
 157     Widget w = (Widget)widget;
 158     if ( w )
 159     {
 160         XtUnmanageChild(w);
 161         XtDestroyWidget(w);
 162     }
 163 }
 164
 165 bool wxWindow::MapOrUnmap(WXWidget widget, bool domap)
 166 {
 167     Widget w = (Widget)widget;
 168     if ( !w )
 169         return false;
 170
 171     //   Rationale: a lot of common operations (including but not
 172     // limited to moving, resizing and appending items to a listbox)
 173     // unmamange the widget, do their work, then manage it again.
 174     // This means that, for example adding an item to a listbox will show it,
 175     // or that most controls are shown every time they are moved or resized!
 176     XtSetMappedWhenManaged( w, domap );
 177
 178     // if the widget is not unmanaged, it still intercepts
 179     // mouse events, even if it is not mapped (and hence invisible)
 180     if ( domap )
 181     {
 182         XtManageChild(w);
 183         // XtMapWidget(w);
 184     }
 185     else
 186     {
 187         XtUnmanageChild(w);
 188         // XtUnmapWidget(w);
 189     }
 190
 191     return true;
 192 }
 193
 194 // ----------------------------------------------------------------------------
 195 // constructors
 196 // ----------------------------------------------------------------------------
 197
 198 void wxWindow::Init()
 199 {
 200     // Motif-specific
 201     m_needsRefresh = true;
 202     m_mainWidget = (WXWidget) 0;
 203
 204     m_winCaptured = false;
 205
 206     m_isShown = true;
 207
 208     m_hScrollBar =
 209     m_vScrollBar =
 210     m_borderWidget =
 211     m_scrolledWindow =
 212     m_drawingArea = (WXWidget) 0;
 213
 214     m_scrollPosX =
 215     m_scrollPosY = 0;
 216
 217     m_backingPixmap = (WXPixmap) 0;
 218     m_pixmapWidth =
 219     m_pixmapHeight = 0;
 220
 221     m_pixmapOffsetX =
 222     m_pixmapOffsetY = 0;
 223
 224     m_lastTS = 0;
 225     m_lastButton = 0;
 226 }
 227
 228 // real construction (Init() must have been called before!)
 229 bool wxWindow::Create(wxWindow *parent, wxWindowID id,
 230                       const wxPoint& pos,
 231                       const wxSize& size,
 232                       long style,
 233                       const wxString& name)
 234 {
 235     wxCHECK_MSG( parent, false, "can't create wxWindow without parent" );
 236
 237     CreateBase(parent, id, pos, size, style, wxDefaultValidator, name);
 238
 239     parent->AddChild(this);
 240
 241     m_backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 242     m_foregroundColour = *wxBLACK;
 243
 244     //// TODO: we should probably optimize by only creating a
 245     //// a drawing area if we have one or more scrollbars (wxVSCROLL/wxHSCROLL).
 246     //// But for now, let's simplify things by always creating the
 247     //// drawing area, since otherwise the translations are different.
 248
 249     // New translations for getting mouse motion feedback
 250     static const String translations = wxMOTIF_STR(
 251 "<Btn1Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 252 <Btn2Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 253 <Btn3Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 254 <BtnMotion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 255 <Btn1Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 256 <Btn2Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 257 <Btn3Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 258 <Btn1Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 259 <Btn2Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 260 <Btn3Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 261 <Motion>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 262 <EnterWindow>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 263 <LeaveWindow>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 264 <Key>: DrawingAreaInput()");
 265
 266     XtActionsRec actions[1];
 267     actions[0].string = wxMOTIF_STR("wxCanvasMotionEvent");
 268     actions[0].proc = (XtActionProc) wxCanvasMotionEvent;
 269     XtAppAddActions ((XtAppContext) wxTheApp->GetAppContext(), actions, 1);
 270
 271     Widget parentWidget = (Widget) parent->GetClientWidget();
 272     m_borderWidget = wxCreateBorderWidget( (WXWidget)parentWidget, style );
 273
 274     m_scrolledWindow = (WXWidget)XtVaCreateManagedWidget
 275                                  (
 276                                   "scrolledWindow",
 277                                   xmScrolledWindowWidgetClass,
 278                                   m_borderWidget ? (Widget) m_borderWidget
 279                                                  : parentWidget,
 280                                   XmNresizePolicy, XmRESIZE_NONE,
 281                                   XmNspacing, 0,
 282                                   XmNscrollingPolicy, XmAPPLICATION_DEFINED,
 283                                   //XmNscrollBarDisplayPolicy, XmAS_NEEDED,
 284                                   NULL
 285                                  );
 286
 287     XtTranslations ptr = XtParseTranslationTable(translations);
 288     m_drawingArea = (WXWidget)XtVaCreateWidget
 289                               (
 290                                name,
 291                                xmDrawingAreaWidgetClass, (Widget) m_scrolledWindow,
 292                                XmNunitType, XmPIXELS,
 293                                // XmNresizePolicy, XmRESIZE_ANY,
 294                                XmNresizePolicy, XmRESIZE_NONE,
 295                                XmNmarginHeight, 0,
 296                                XmNmarginWidth, 0,
 297                                XmNtranslations, ptr,
 298                                NULL
 299                               );
 300     XtFree((char *) ptr);
 301
 302 #if 0
 303     if (GetWindowStyleFlag() & wxOVERRIDE_KEY_TRANSLATIONS)
 304     {
 305         ptr = XtParseTranslationTable ("<Key>: DrawingAreaInput()");
 306         XtOverrideTranslations ((Widget) m_drawingArea, ptr);
 307         XtFree ((char *) ptr);
 308     }
 309 #endif // 0
 310
 311     wxAddWindowToTable((Widget) m_drawingArea, this);
 312     wxAddWindowToTable((Widget) m_scrolledWindow, this);
 313
 314     // This order is very important in Motif 1.2.1
 315     XtRealizeWidget ((Widget) m_scrolledWindow);
 316     XtRealizeWidget ((Widget) m_drawingArea);
 317     XtManageChild ((Widget) m_drawingArea);
 318
 319     ptr = XtParseTranslationTable("<Configure>: resize()");
 320     XtOverrideTranslations((Widget) m_drawingArea, ptr);
 321     XtFree ((char *) ptr);
 322
 323     XtAddCallback ((Widget) m_drawingArea, XmNexposeCallback, (XtCallbackProc) wxCanvasRepaintProc, (XtPointer) this);
 324     XtAddCallback ((Widget) m_drawingArea, XmNinputCallback, (XtCallbackProc) wxCanvasInputEvent, (XtPointer) this);
 325
 326     XtAddEventHandler(
 327                       (Widget)m_drawingArea,
 328                        PointerMotionHintMask | EnterWindowMask |
 329                        LeaveWindowMask | FocusChangeMask,
 330                        False,
 331                        (XtEventHandler) wxCanvasEnterLeave,
 332                        (XtPointer) this
 333                      );
 334
 335     // Scrolled widget needs to have its colour changed or we get a little blue
 336     // square where the scrollbars abutt
 337     wxColour backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 338     wxDoChangeBackgroundColour(m_scrolledWindow, backgroundColour, true);
 339     wxDoChangeBackgroundColour(m_drawingArea, backgroundColour, true);
 340
 341     XmScrolledWindowSetAreas(
 342                              (Widget)m_scrolledWindow,
 343                              (Widget) 0, (Widget) 0,
 344                              (Widget) m_drawingArea);
 345
 346     // Without this, the cursor may not be restored properly (e.g. in splitter
 347     // sample).
 348     SetCursor(*wxSTANDARD_CURSOR);
 349     SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
 350     DoSetSizeIntr(pos.x, pos.y, size.x,size.y, wxSIZE_AUTO, true);
 351     return true;
 352 }
 353
 354 // Destructor
 355 wxWindow::~wxWindow()
 356 {
 357     if (g_captureWindow == this)
 358         g_captureWindow = NULL;
 359
 360     m_isBeingDeleted = true;
 361
 362     // Motif-specific actions first
 363     WXWidget wMain = GetMainWidget();
 364     if ( wMain )
 365     {
 366         // Removes event handlers
 367         DetachWidget(wMain);
 368     }
 369
 370     // If m_drawingArea, we're a fully-fledged window with drawing area,
 371     // scrollbars etc. (what wxCanvas used to be)
 372     if ( m_drawingArea )
 373     {
 374         // Destroy children before destroying self
 375         DestroyChildren();
 376
 377         if (m_backingPixmap)
 378             XFreePixmap (XtDisplay ((Widget) GetMainWidget()), (Pixmap) m_backingPixmap);
 379
 380         Widget w = (Widget) m_drawingArea;
 381         wxDeleteWindowFromTable(w);
 382
 383         if (w)
 384         {
 385             XtDestroyWidget(w);
 386             m_drawingArea = (WXWidget) 0;
 387         }
 388
 389         // Only if we're _really_ a canvas (not a dialog box/panel)
 390         if (m_scrolledWindow)
 391         {
 392             wxDeleteWindowFromTable((Widget) m_scrolledWindow);
 393         }
 394
 395         if (m_hScrollBar)
 396         {
 397             wxDeleteWindowFromTable((Widget) m_hScrollBar);
 398             XtUnmanageChild((Widget) m_hScrollBar);
 399         }
 400         if (m_vScrollBar)
 401         {
 402             wxDeleteWindowFromTable((Widget) m_vScrollBar);
 403             XtUnmanageChild((Widget) m_vScrollBar);
 404         }
 405
 406         if (m_hScrollBar)
 407             XtDestroyWidget((Widget) m_hScrollBar);
 408         if (m_vScrollBar)
 409             XtDestroyWidget((Widget) m_vScrollBar);
 410
 411         UnmanageAndDestroy(m_scrolledWindow);
 412
 413         if (m_borderWidget)
 414         {
 415             XtDestroyWidget ((Widget) m_borderWidget);
 416             m_borderWidget = (WXWidget) 0;
 417         }
 418     }
 419     else // Why wasn't this here before? JACS 8/3/2000
 420         DestroyChildren();
 421
 422
 423     // Destroy the window
 424     if (GetMainWidget())
 425     {
 426         // If this line (XtDestroyWidget) causes a crash, you may comment it out.
 427         // Child widgets will get destroyed automatically when a frame
 428         // or dialog is destroyed, but before that you may get some memory
 429         // leaks and potential layout problems if you delete and then add
 430         // child windows.
 431
 432         // GRG, Feb/2000: commented this out when adding support for
 433         //   wxSCROLL[WIN]_THUMBRELEASE events. Also it was reported
 434         //   that this call crashed wxMotif under OS/2, so it seems
 435         //   that leaving it out is the right thing to do.
 436         // SN, Feb/2000: newgrid/griddemo shows why it is needed :-(
 437         XtDestroyWidget((Widget) GetMainWidget());
 438         SetMainWidget((WXWidget) NULL);
 439     }
 440 }
 441
 442 // ----------------------------------------------------------------------------
 443 // scrollbar management
 444 // ----------------------------------------------------------------------------
 445
 446 WXWidget wxWindow::DoCreateScrollBar(WXWidget parent,
 447                                      wxOrientation orientation,
 448                                      void (*callback)())
 449 {
 450     int orient = ( orientation & wxHORIZONTAL ) ? XmHORIZONTAL : XmVERTICAL;
 451     Widget sb =
 452         XtVaCreateManagedWidget( "scrollBarWidget",
 453                                  xmScrollBarWidgetClass, (Widget)parent,
 454                                  XmNorientation, orient,
 455                                  XmNincrement, 1,
 456                                  XmNvalue, 0,
 457                                  NULL );
 458
 459     XtPointer o = (XtPointer)orientation;
 460     XtCallbackProc cb = (XtCallbackProc)callback;
 461
 462     XtAddCallback( sb, XmNvalueChangedCallback, cb, o );
 463     XtAddCallback( sb, XmNdragCallback, cb, o );
 464     XtAddCallback( sb, XmNincrementCallback, cb, o );
 465     XtAddCallback( sb, XmNdecrementCallback, cb, o );
 466     XtAddCallback( sb, XmNpageIncrementCallback, cb, o );
 467     XtAddCallback( sb, XmNpageDecrementCallback, cb, o );
 468     XtAddCallback( sb, XmNtoTopCallback, cb, o );
 469     XtAddCallback( sb, XmNtoBottomCallback, cb, o );
 470
 471     return (WXWidget)sb;
 472 }
 473
 474 // Helper function
 475 void wxWindow::CreateScrollbar(wxOrientation orientation)
 476 {
 477     wxCHECK_RET( m_drawingArea, "this window can't have scrollbars" );
 478
 479     XtVaSetValues( (Widget) m_scrolledWindow,
 480                    XmNresizePolicy, XmRESIZE_NONE,
 481                    NULL );
 482
 483     wxColour backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 484     // Add scrollbars if required
 485     if (orientation == wxHORIZONTAL)
 486     {
 487         m_hScrollBar = DoCreateScrollBar( m_scrolledWindow, wxHORIZONTAL,
 488                                           (void (*)())wxScrollBarCallback );
 489
 490         wxDoChangeBackgroundColour(m_hScrollBar, backgroundColour, true);
 491
 492         XtRealizeWidget( (Widget)m_hScrollBar );
 493
 494         XtVaSetValues((Widget) m_scrolledWindow,
 495             XmNhorizontalScrollBar, (Widget) m_hScrollBar,
 496             NULL);
 497
 498         wxAddWindowToTable( (Widget)m_hScrollBar, this );
 499     }
 500     else if (orientation == wxVERTICAL)
 501     {
 502         m_vScrollBar = DoCreateScrollBar( m_scrolledWindow, wxVERTICAL,
 503                                           (void (*)())wxScrollBarCallback );
 504
 505         wxDoChangeBackgroundColour(m_vScrollBar, backgroundColour, true);
 506
 507         XtRealizeWidget((Widget)m_vScrollBar);
 508
 509         XtVaSetValues((Widget) m_scrolledWindow,
 510             XmNverticalScrollBar, (Widget) m_vScrollBar,
 511             NULL);
 512
 513         wxAddWindowToTable( (Widget)m_vScrollBar, this );
 514     }
 515
 516     XtVaSetValues( (Widget) m_scrolledWindow,
 517                    XmNresizePolicy, XmRESIZE_ANY,
 518                    NULL );
 519 }
 520
 521 void wxWindow::DestroyScrollbar(wxOrientation orientation)
 522 {
 523     wxCHECK_RET( m_drawingArea, "this window can't have scrollbars" );
 524
 525     XtVaSetValues((Widget) m_scrolledWindow,
 526                   XmNresizePolicy, XmRESIZE_NONE,
 527                   NULL);
 528     String stringSB = orientation == wxHORIZONTAL ?
 529         XmNhorizontalScrollBar : XmNverticalScrollBar;
 530     WXWidget* widgetSB = orientation == wxHORIZONTAL ?
 531         &m_hScrollBar : &m_vScrollBar;
 532
 533     if( *widgetSB )
 534     {
 535         wxDeleteWindowFromTable( (Widget)*widgetSB );
 536         XtDestroyWidget( (Widget)*widgetSB );
 537         *widgetSB = (WXWidget)NULL;
 538     }
 539
 540     XtVaSetValues( (Widget)m_scrolledWindow,
 541                    stringSB, (Widget) 0,
 542                    NULL );
 543
 544     XtVaSetValues((Widget) m_scrolledWindow,
 545                   XmNresizePolicy, XmRESIZE_ANY,
 546                   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::DoFindFocus()
 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::compatibility_iterator 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_borderWidget ? m_borderWidget : m_scrolledWindow, show);
 612         // MapOrUnmap(m_drawingArea, show);
 613     }
 614     else
 615     {
 616         if ( !MapOrUnmap(GetTopWidget(), show) )
 617             MapOrUnmap(GetMainWidget(), show);
 618     }
 619
 620     return true;
 621 }
 622
 623 // Raise the window to the top of the Z order
 624 void wxWindow::Raise()
 625 {
 626     Widget wTop = (Widget) GetTopWidget();
 627     Window window = XtWindow(wTop);
 628     XRaiseWindow(XtDisplay(wTop), window);
 629 }
 630
 631 // Lower the window to the bottom of the Z order
 632 void wxWindow::Lower()
 633 {
 634     Widget wTop = (Widget) GetTopWidget();
 635     Window window = XtWindow(wTop);
 636     XLowerWindow(XtDisplay(wTop), window);
 637 }
 638
 639 void wxWindow::SetTitle(const wxString& title)
 640 {
 641     XtVaSetValues((Widget)GetMainWidget(), XmNtitle, title.c_str(), NULL);
 642 }
 643
 644 wxString wxWindow::GetTitle() const
 645 {
 646     char *title;
 647     XtVaGetValues((Widget)GetMainWidget(), XmNtitle, &title, NULL);
 648
 649     return wxString(title);
 650 }
 651
 652 void wxWindow::DoCaptureMouse()
 653 {
 654     g_captureWindow = this;
 655     if ( m_winCaptured )
 656         return;
 657
 658     Widget wMain = (Widget)GetMainWidget();
 659     if ( wMain )
 660         XtAddGrab(wMain, True, False);
 661
 662     m_winCaptured = true;
 663 }
 664
 665 void wxWindow::DoReleaseMouse()
 666 {
 667     g_captureWindow = NULL;
 668     if ( !m_winCaptured )
 669         return;
 670
 671     Widget wMain = (Widget)GetMainWidget();
 672     if ( wMain )
 673         XtRemoveGrab(wMain);
 674
 675     m_winCaptured = false;
 676 }
 677
 678 bool wxWindow::SetFont(const wxFont& font)
 679 {
 680     if ( !wxWindowBase::SetFont(font) )
 681     {
 682         // nothing to do
 683         return false;
 684     }
 685
 686     ChangeFont();
 687
 688     return true;
 689 }
 690
 691 bool wxWindow::SetCursor(const wxCursor& cursor)
 692 {
 693     if ( !wxWindowBase::SetCursor(cursor) )
 694     {
 695         // no change
 696         return false;
 697     }
 698
 699     //    wxASSERT_MSG( m_cursor.Ok(),
 700     //                  wxT("cursor must be valid after call to the base version"));
 701     wxCursor* cursor2 = NULL;
 702     if (m_cursor.Ok())
 703         cursor2 = & m_cursor;
 704     else
 705         cursor2 = wxSTANDARD_CURSOR;
 706
 707     WXDisplay *dpy = GetXDisplay();
 708     WXCursor x_cursor = cursor2->GetXCursor(dpy);
 709
 710     Widget w = (Widget) GetMainWidget();
 711     Window win = XtWindow(w);
 712     XDefineCursor((Display*) dpy, win, (Cursor) x_cursor);
 713
 714     return true;
 715 }
 716
 717 // Coordinates relative to the window
 718 void wxWindow::WarpPointer (int x, int y)
 719 {
 720     Widget wClient = (Widget)GetClientWidget();
 721
 722     XWarpPointer(XtDisplay(wClient), None, XtWindow(wClient), 0, 0, 0, 0, x, y);
 723 }
 724
 725 // ---------------------------------------------------------------------------
 726 // scrolling stuff
 727 // ---------------------------------------------------------------------------
 728
 729 int wxWindow::GetScrollPos(int orient) const
 730 {
 731     if (orient == wxHORIZONTAL)
 732         return m_scrollPosX;
 733     else
 734         return m_scrollPosY;
 735
 736 #if 0
 737     Widget scrollBar = (Widget) ((orient == wxHORIZONTAL) ? m_hScrollBar : m_vScrollBar);
 738     if (scrollBar)
 739     {
 740         int pos;
 741         XtVaGetValues(scrollBar, XmNvalue, &pos, NULL);
 742         return pos;
 743     }
 744     else
 745         return 0;
 746 #endif // 0
 747 }
 748
 749 // This now returns the whole range, not just the number of positions that we
 750 // can scroll.
 751 int wxWindow::GetScrollRange(int orient) const
 752 {
 753     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 754     // CE scintilla windows don't always have these scrollbars
 755     // and it tends to pile up a whole bunch of asserts
 756     //wxCHECK_MSG( scrollBar, 0, "no such scrollbar" );
 757
 758     int range = 0;
 759     if (scrollBar)
 760         XtVaGetValues(scrollBar, XmNmaximum, &range, NULL);
 761     return range;
 762 }
 763
 764 int wxWindow::GetScrollThumb(int orient) const
 765 {
 766     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 767     //wxCHECK_MSG( scrollBar, 0, "no such scrollbar" );
 768
 769     int thumb = 0;
 770     if (scrollBar)
 771         XtVaGetValues(scrollBar, XmNsliderSize, &thumb, NULL);
 772     return thumb;
 773 }
 774
 775 void wxWindow::SetScrollPos(int orient, int pos, bool WXUNUSED(refresh))
 776 {
 777     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 778
 779     if ( scrollBar )
 780     {
 781         XtVaSetValues (scrollBar, XmNvalue, pos, NULL);
 782     }
 783
 784     SetInternalScrollPos((wxOrientation)orient, pos);
 785 }
 786
 787 // New function that will replace some of the above.
 788 void wxWindow::SetScrollbar(int orient, int pos, int thumbVisible,
 789                             int range, bool WXUNUSED(refresh))
 790 {
 791     int oldW, oldH;
 792     GetSize(& oldW, & oldH);
 793
 794     if (range == 0)
 795         range = 1;
 796     if (thumbVisible == 0)
 797         thumbVisible = 1;
 798
 799     if (thumbVisible > range)
 800         thumbVisible = range;
 801
 802     // Save the old state to see if it changed
 803     WXWidget oldScrollBar = GetScrollbar((wxOrientation)orient);
 804
 805     if (orient == wxHORIZONTAL)
 806     {
 807         if (thumbVisible == range)
 808         {
 809             if (m_hScrollBar)
 810                 DestroyScrollbar(wxHORIZONTAL);
 811         }
 812         else
 813         {
 814             if (!m_hScrollBar)
 815                 CreateScrollbar(wxHORIZONTAL);
 816         }
 817     }
 818     if (orient == wxVERTICAL)
 819     {
 820         if (thumbVisible == range)
 821         {
 822             if (m_vScrollBar)
 823                 DestroyScrollbar(wxVERTICAL);
 824         }
 825         else
 826         {
 827             if (!m_vScrollBar)
 828                 CreateScrollbar(wxVERTICAL);
 829         }
 830     }
 831     WXWidget newScrollBar =  GetScrollbar((wxOrientation)orient);
 832
 833     if (oldScrollBar != newScrollBar)
 834     {
 835         // This is important! Without it, scrollbars misbehave badly.
 836         XtUnrealizeWidget((Widget) m_scrolledWindow);
 837         XmScrolledWindowSetAreas ((Widget) m_scrolledWindow, (Widget) m_hScrollBar, (Widget) m_vScrollBar, (Widget) m_drawingArea);
 838         XtRealizeWidget((Widget) m_scrolledWindow);
 839         XtManageChild((Widget) m_scrolledWindow);
 840     }
 841
 842     if (newScrollBar)
 843     {
 844         XtVaSetValues((Widget) newScrollBar,
 845         XmNvalue, pos,
 846         XmNminimum, 0,
 847         XmNmaximum, range,
 848         XmNsliderSize, thumbVisible,
 849         NULL);
 850     }
 851
 852     SetInternalScrollPos((wxOrientation)orient, pos);
 853
 854     int newW, newH;
 855     GetSize(& newW, & newH);
 856
 857     // Adjusting scrollbars can resize the canvas accidentally
 858     if (newW != oldW || newH != oldH)
 859         SetSize(-1, -1, oldW, oldH);
 860 }
 861
 862 // Does a physical scroll
 863 void wxWindow::ScrollWindow(int dx, int dy, const wxRect *rect)
 864 {
 865     int x, y, w, h;
 866     if (rect)
 867     {
 868         // Use specified rectangle
 869         x = rect->x; y = rect->y; w = rect->width; h = rect->height;
 870     }
 871     else
 872     {
 873         // Use whole client area
 874         x = 0; y = 0;
 875         GetClientSize(& w, & h);
 876     }
 877
 878     int x1 = (dx >= 0) ? x : x - dx;
 879     int y1 = (dy >= 0) ? y : y - dy;
 880     int w1 = w - abs(dx);
 881     int h1 = h - abs(dy);
 882     int x2 = (dx >= 0) ? x + dx : x;
 883     int y2 = (dy >= 0) ? y + dy : y;
 884
 885     wxClientDC dc(this);
 886
 887     dc.SetLogicalFunction (wxCOPY);
 888
 889     Widget widget = (Widget) GetMainWidget();
 890     Window window = XtWindow(widget);
 891     Display* display = XtDisplay(widget);
 892
 893     XCopyArea(display, window, window, (GC) dc.GetGC(),
 894               x1, y1, w1, h1, x2, y2);
 895
 896     dc.SetAutoSetting(true);
 897     wxBrush brush(GetBackgroundColour(), wxSOLID);
 898     dc.SetBrush(brush); // FIXME: needed?
 899
 900     wxWindowList::compatibility_iterator cnode = m_children.GetFirst();
 901     while (cnode)
 902     {
 903         wxWindow *child = cnode->GetData();
 904         int sx = 0;
 905         int sy = 0;
 906         child->GetSize( &sx, &sy );
 907         wxPoint pos( child->GetPosition() );
 908         child->SetSize( pos.x + dx, pos.y + dy, sx, sy, wxSIZE_ALLOW_MINUS_ONE );
 909         cnode = cnode->GetNext();
 910     }
 911
 912     // We'll add rectangles to the list of update rectangles according to which
 913     // bits we've exposed.
 914     wxList updateRects;
 915
 916     if (dx > 0)
 917     {
 918         wxRect *rect = new wxRect;
 919         rect->x = x;
 920         rect->y = y;
 921         rect->width = dx;
 922         rect->height = h;
 923
 924         XFillRectangle(display, window,
 925             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
 926
 927         rect->x = rect->x;
 928         rect->y = rect->y;
 929         rect->width = rect->width;
 930         rect->height = rect->height;
 931
 932         updateRects.Append((wxObject*) rect);
 933     }
 934     else if (dx < 0)
 935     {
 936         wxRect *rect = new wxRect;
 937
 938         rect->x = x + w + dx;
 939         rect->y = y;
 940         rect->width = -dx;
 941         rect->height = h;
 942
 943         XFillRectangle(display, window,
 944             (GC) dc.GetGC(), rect->x, rect->y, rect->width,
 945             rect->height);
 946
 947         rect->x = rect->x;
 948         rect->y = rect->y;
 949         rect->width = rect->width;
 950         rect->height = rect->height;
 951
 952         updateRects.Append((wxObject*) rect);
 953     }
 954     if (dy > 0)
 955     {
 956         wxRect *rect = new wxRect;
 957
 958         rect->x = x;
 959         rect->y = y;
 960         rect->width = w;
 961         rect->height = dy;
 962
 963         XFillRectangle(display, window,
 964             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
 965
 966         rect->x = rect->x;
 967         rect->y = rect->y;
 968         rect->width = rect->width;
 969         rect->height = rect->height;
 970
 971         updateRects.Append((wxObject*) rect);
 972     }
 973     else if (dy < 0)
 974     {
 975         wxRect *rect = new wxRect;
 976
 977         rect->x = x;
 978         rect->y = y + h + dy;
 979         rect->width = w;
 980         rect->height = -dy;
 981
 982         XFillRectangle(display, window,
 983             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
 984
 985         rect->x = rect->x;
 986         rect->y = rect->y;
 987         rect->width = rect->width;
 988         rect->height = rect->height;
 989
 990         updateRects.Append((wxObject*) rect);
 991     }
 992     dc.SetBrush(wxNullBrush);
 993
 994     // Now send expose events
 995
 996     wxList::compatibility_iterator  node = updateRects.GetFirst();
 997     while (node)
 998     {
 999         wxRect* rect = (wxRect*) node->GetData();
1000         XExposeEvent event;
1001
1002         event.type = Expose;
1003         event.display = display;
1004         event.send_event = True;
1005         event.window = window;
1006
1007         event.x = rect->x;
1008         event.y = rect->y;
1009         event.width = rect->width;
1010         event.height = rect->height;
1011
1012         event.count = 0;
1013
1014         XSendEvent(display, window, False, ExposureMask, (XEvent *)&event);
1015
1016         node = node->GetNext();
1017
1018     }
1019
1020     // Delete the update rects
1021     node = updateRects.GetFirst();
1022     while (node)
1023     {
1024         wxRect* rect = (wxRect*) node->GetData();
1025         delete rect;
1026         node = node->GetNext();
1027     }
1028
1029     XmUpdateDisplay((Widget) GetMainWidget());
1030 }
1031
1032 // ---------------------------------------------------------------------------
1033 // drag and drop
1034 // ---------------------------------------------------------------------------
1035
1036 #if wxUSE_DRAG_AND_DROP
1037
1038 void wxWindow::SetDropTarget(wxDropTarget * WXUNUSED(pDropTarget))
1039 {
1040     // TODO
1041 }
1042
1043 #endif
1044
1045 // Old style file-manager drag&drop
1046 void wxWindow::DragAcceptFiles(bool WXUNUSED(accept))
1047 {
1048     // TODO
1049 }
1050
1051 // ----------------------------------------------------------------------------
1052 // tooltips
1053 // ----------------------------------------------------------------------------
1054
1055 #if wxUSE_TOOLTIPS
1056
1057 void wxWindow::DoSetToolTip(wxToolTip * WXUNUSED(tooltip))
1058 {
1059     // TODO
1060 }
1061
1062 #endif // wxUSE_TOOLTIPS
1063
1064 // ----------------------------------------------------------------------------
1065 // popup menus
1066 // ----------------------------------------------------------------------------
1067
1068 #if wxUSE_MENUS
1069
1070 bool wxWindow::DoPopupMenu(wxMenu *menu, int x, int y)
1071 {
1072     if ( x == -1 && y == -1 )
1073     {
1074         wxPoint mouse = ScreenToClient(wxGetMousePosition());
1075         x = mouse.x; y = mouse.y;
1076     }
1077
1078     Widget widget = (Widget) GetMainWidget();
1079
1080     /* The menuId field seems to be usused, so we'll use it to
1081     indicate whether a menu is popped up or not:
1082     0: Not currently created as a popup
1083     -1: Created as a popup, but not active
1084     1: Active popup.
1085     */
1086
1087     if (menu->GetParent() && (menu->GetId() != -1))
1088         return false;
1089
1090     if (menu->GetMainWidget())
1091     {
1092         menu->DestroyMenu(true);
1093     }
1094
1095     menu->SetId(1); /* Mark as popped-up */
1096     menu->CreateMenu(NULL, widget, menu);
1097     menu->SetInvokingWindow(this);
1098
1099     menu->UpdateUI();
1100
1101     //  menu->SetParent(parent);
1102     //  parent->children->Append(menu);  // Store menu for later deletion
1103
1104     Widget menuWidget = (Widget) menu->GetMainWidget();
1105
1106     int rootX = 0;
1107     int rootY = 0;
1108
1109     int deviceX = x;
1110     int deviceY = y;
1111     /*
1112     if (this->IsKindOf(CLASSINFO(wxCanvas)))
1113     {
1114     wxCanvas *canvas = (wxCanvas *) this;
1115     deviceX = canvas->GetDC ()->LogicalToDeviceX (x);
1116     deviceY = canvas->GetDC ()->LogicalToDeviceY (y);
1117     }
1118     */
1119
1120     Display *display = XtDisplay (widget);
1121     Window rootWindow = RootWindowOfScreen (XtScreen((Widget)widget));
1122     Window thisWindow = XtWindow (widget);
1123     Window childWindow;
1124     XTranslateCoordinates (display, thisWindow, rootWindow, (int) deviceX, (int) deviceY,
1125         &rootX, &rootY, &childWindow);
1126
1127     XButtonPressedEvent event;
1128     event.type = ButtonPress;
1129     event.button = 1;
1130
1131     event.x = deviceX;
1132     event.y = deviceY;
1133
1134     event.x_root = rootX;
1135     event.y_root = rootY;
1136
1137     XmMenuPosition (menuWidget, &event);
1138     XtManageChild (menuWidget);
1139
1140     // The ID of a pop-up menu is 1 when active, and is set to 0 by the
1141     // idle-time destroy routine.
1142     // Waiting until this ID changes causes this function to block until
1143     // the menu has been dismissed and the widgets cleaned up.
1144     // In other words, once this routine returns, it is safe to delete
1145     // the menu object.
1146     // Ian Brown <ian.brown@printsoft.de>
1147
1148     wxEventLoop evtLoop;
1149
1150     while (menu->GetId() == 1)
1151     {
1152         wxDoEventLoopIteration( evtLoop );
1153     }
1154
1155     return true;
1156 }
1157
1158 #endif
1159
1160 // ---------------------------------------------------------------------------
1161 // moving and resizing
1162 // ---------------------------------------------------------------------------
1163
1164 bool wxWindow::PreResize()
1165 {
1166     return true;
1167 }
1168
1169 // Get total size
1170 void wxWindow::DoGetSize(int *x, int *y) const
1171 {
1172     Widget widget = (Widget)( !m_drawingArea ? GetTopWidget() :
1173                               ( m_borderWidget ? m_borderWidget :
1174                                 m_scrolledWindow ? m_scrolledWindow :
1175                                 m_drawingArea ) );
1176     Dimension xx, yy;
1177
1178     XtVaGetValues( widget,
1179                    XmNwidth, &xx,
1180                    XmNheight, &yy,
1181                    NULL );
1182     if(x) *x = xx;
1183     if(y) *y = yy;
1184 }
1185
1186 void wxWindow::DoGetPosition(int *x, int *y) const
1187 {
1188     Widget widget = (Widget)
1189         ( m_drawingArea ?
1190           ( m_borderWidget ? m_borderWidget : m_scrolledWindow ) :
1191           GetTopWidget() );
1192
1193     Position xx, yy;
1194     XtVaGetValues(widget, XmNx, &xx, XmNy, &yy, NULL);
1195
1196     // We may be faking the client origin. So a window that's really at (0, 30)
1197     // may appear (to wxWin apps) to be at (0, 0).
1198     if (GetParent())
1199     {
1200         wxPoint pt(GetParent()->GetClientAreaOrigin());
1201         xx -= pt.x;
1202         yy -= pt.y;
1203     }
1204
1205     if(x) *x = xx;
1206     if(y) *y = yy;
1207 }
1208
1209 void wxWindow::DoScreenToClient(int *x, int *y) const
1210 {
1211     Widget widget = (Widget) GetClientWidget();
1212     Display *display = XtDisplay((Widget) GetMainWidget());
1213     Window rootWindow = RootWindowOfScreen(XtScreen(widget));
1214     Window thisWindow = XtWindow(widget);
1215
1216     Window childWindow;
1217     int xx = *x;
1218     int yy = *y;
1219     XTranslateCoordinates(display, rootWindow, thisWindow, xx, yy, x, y, &childWindow);
1220 }
1221
1222 void wxWindow::DoClientToScreen(int *x, int *y) const
1223 {
1224     Widget widget = (Widget) GetClientWidget();
1225     Display *display = XtDisplay(widget);
1226     Window rootWindow = RootWindowOfScreen(XtScreen(widget));
1227     Window thisWindow = XtWindow(widget);
1228
1229     Window childWindow;
1230     int xx = *x;
1231     int yy = *y;
1232     XTranslateCoordinates(display, thisWindow, rootWindow, xx, yy, x, y, &childWindow);
1233 }
1234
1235
1236 // Get size *available for subwindows* i.e. excluding menu bar etc.
1237 void wxWindow::DoGetClientSize(int *x, int *y) const
1238 {
1239     Widget widget = (Widget) GetClientWidget();
1240     Dimension xx, yy;
1241     XtVaGetValues(widget, XmNwidth, &xx, XmNheight, &yy, NULL);
1242     if(x) *x = xx; if(y) *y = yy;
1243 }
1244
1245 void wxWindow::DoSetSize(int x, int y, int width, int height, int sizeFlags)
1246 {
1247     DoSetSizeIntr(x, y, width, height, sizeFlags, false);
1248 }
1249
1250 void wxWindow::DoSetSizeIntr(int x, int y, int width, int height,
1251                              int sizeFlags, bool fromCtor)
1252 {
1253     // A bit of optimization to help sort out the flickers.
1254     int oldX = -1, oldY = -1, oldW = -1, oldH = -1;
1255     if( !fromCtor )
1256     {
1257         GetSize(& oldW, & oldH);
1258         GetPosition(& oldX, & oldY);
1259     }
1260
1261     if ( !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
1262     {
1263         if ( x == -1 )
1264             x = oldX;
1265         if ( y == -1 )
1266             y = oldY;
1267     }
1268
1269     wxSize size(-1, -1);
1270     if ( width <= 0 )
1271     {
1272         if ( ( sizeFlags & wxSIZE_AUTO_WIDTH ) && !fromCtor )
1273         {
1274             size = DoGetBestSize();
1275             width = size.x;
1276         }
1277         else
1278         {
1279             width = oldW;
1280         }
1281     }
1282
1283     if ( height == -1 )
1284     {
1285         if( ( sizeFlags & wxSIZE_AUTO_HEIGHT ) && !fromCtor )
1286         {
1287             if( size.x == -1 ) size = DoGetBestSize();
1288             height = size.y;
1289         }
1290         else
1291         {
1292             height = oldH;
1293         }
1294     }
1295
1296     if ( x != oldX || y != oldY || width != oldW || height != oldH
1297          || !wxNoOptimize::CanOptimize() )
1298     {
1299         if (m_drawingArea)
1300         {
1301             int flags = 0;
1302
1303             if (x > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
1304                 flags |= wxMOVE_X;
1305
1306             if (y > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
1307                 flags |= wxMOVE_Y;
1308
1309             if (width > 0)
1310                 flags |= wxMOVE_WIDTH;
1311
1312             if (height > 0)
1313                 flags |= wxMOVE_HEIGHT;
1314
1315             int xx = x; int yy = y;
1316             AdjustForParentClientOrigin(xx, yy, sizeFlags);
1317             if( !fromCtor )
1318                 DoMoveWindow( xx, yy, width, height );
1319             else
1320                 DoMoveWindowIntr( xx, yy, width, height, flags );
1321
1322             return;
1323         }
1324
1325         Widget widget = (Widget) GetTopWidget();
1326         if (!widget)
1327             return;
1328
1329         bool managed = XtIsManaged( widget );
1330         if (managed)
1331             XtUnmanageChild(widget);
1332
1333         int xx = x;
1334         int yy = y;
1335         AdjustForParentClientOrigin(xx, yy, sizeFlags);
1336
1337         DoMoveWindow(xx, yy, width, height);
1338
1339         if (managed)
1340             XtManageChild(widget);
1341     }
1342 }
1343
1344 void wxWindow::DoSetClientSize(int width, int height)
1345 {
1346     if (m_drawingArea)
1347     {
1348         Widget drawingArea = (Widget) m_drawingArea;
1349
1350         XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_ANY, NULL);
1351
1352         if (width > -1)
1353             XtVaSetValues(drawingArea, XmNwidth, width, NULL);
1354         if (height > -1)
1355             XtVaSetValues(drawingArea, XmNheight, height, NULL);
1356
1357         XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_NONE, NULL);
1358         return;
1359     }
1360
1361     Widget widget = (Widget) GetTopWidget();
1362
1363     if (width > -1)
1364         XtVaSetValues(widget, XmNwidth, width, NULL);
1365     if (height > -1)
1366         XtVaSetValues(widget, XmNheight, height, NULL);
1367 }
1368
1369 void wxWindow::DoMoveWindowIntr(int xx, int yy, int w, int h,
1370                                 int flags)
1371 {
1372     if (m_drawingArea)
1373     {
1374         Widget drawingArea = (Widget) m_drawingArea;
1375         Widget borderOrScrolled = m_borderWidget ?
1376             (Widget) m_borderWidget :
1377             (Widget) m_scrolledWindow;
1378
1379         bool managed = XtIsManaged(borderOrScrolled);
1380         if (managed)
1381             XtUnmanageChild (borderOrScrolled);
1382         XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_ANY, NULL);
1383
1384         if (flags & wxMOVE_X)
1385             XtVaSetValues (borderOrScrolled,
1386                            XmNx, xx,
1387                            NULL);
1388         if (flags & wxMOVE_Y)
1389             XtVaSetValues (borderOrScrolled,
1390                            XmNy, yy,
1391                            NULL);
1392
1393         if (flags & wxMOVE_WIDTH)
1394         {
1395             if (m_borderWidget)
1396             {
1397                 XtVaSetValues ((Widget) m_borderWidget, XmNwidth, w, NULL);
1398                 short thick, margin;
1399                 XtVaGetValues ((Widget) m_borderWidget,
1400                                XmNshadowThickness, &thick,
1401                                XmNmarginWidth, &margin,
1402                                NULL);
1403                 w -= 2 * (thick + margin);
1404             }
1405
1406             if( w < 1 ) w = 1;
1407             XtVaSetValues ((Widget) m_scrolledWindow, XmNwidth, w, NULL);
1408         }
1409
1410         if (flags & wxMOVE_HEIGHT)
1411         {
1412             if (m_borderWidget)
1413             {
1414                 XtVaSetValues ((Widget) m_borderWidget, XmNheight, h, NULL);
1415                 short thick, margin;
1416                 XtVaGetValues ((Widget) m_borderWidget,
1417                                XmNshadowThickness, &thick,
1418                                XmNmarginHeight, &margin,
1419                                NULL);
1420                 h -= 2 * (thick + margin);
1421             }
1422
1423             if( h < 1 ) h = 1;
1424             XtVaSetValues ((Widget) m_scrolledWindow, XmNheight, h, NULL);
1425         }
1426
1427         if (managed)
1428             XtManageChild (borderOrScrolled);
1429         XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_NONE, NULL);
1430     }
1431     else
1432     {
1433         if( xx < 0 ) xx = 0;
1434         if( yy < 0 ) yy = 0;
1435         if( w < 1 ) w = 1;
1436         if( h < 1 ) h = 1;
1437
1438         XtVaSetValues((Widget)GetTopWidget(),
1439                       XmNx, xx,
1440                       XmNy, yy,
1441                       XmNwidth, w,
1442                       XmNheight, h,
1443                       NULL);
1444     }
1445 }
1446
1447 void wxWindow::DoMoveWindow(int x, int y, int width, int height)
1448 {
1449     DoMoveWindowIntr (x, y, width, height,
1450                       wxMOVE_X|wxMOVE_Y|wxMOVE_WIDTH|wxMOVE_HEIGHT);
1451 }
1452
1453 // ---------------------------------------------------------------------------
1454 // text metrics
1455 // ---------------------------------------------------------------------------
1456
1457 int wxWindow::GetCharHeight() const
1458 {
1459     wxCHECK_MSG( m_font.Ok(), 0, "valid window font needed" );
1460
1461     int height;
1462
1463     wxGetTextExtent (GetXDisplay(), m_font, 1.0,
1464                      "x", NULL, &height, NULL, NULL);
1465
1466     return height;
1467 }
1468
1469 int wxWindow::GetCharWidth() const
1470 {
1471     wxCHECK_MSG( m_font.Ok(), 0, "valid window font needed" );
1472
1473     int width;
1474
1475     wxGetTextExtent (GetXDisplay(), m_font, 1.0,
1476                      "x", &width, NULL, NULL, NULL);
1477
1478     return width;
1479 }
1480
1481 void wxWindow::GetTextExtent(const wxString& string,
1482                              int *x, int *y,
1483                              int *descent, int *externalLeading,
1484                              const wxFont *theFont) const
1485 {
1486     const wxFont *fontToUse = theFont ? theFont : &m_font;
1487
1488     wxCHECK_RET( fontToUse->Ok(), "valid window font needed" );
1489
1490     if (externalLeading)
1491         *externalLeading = 0;
1492     wxGetTextExtent (GetXDisplay(), *fontToUse, 1.0,
1493                      string, x, y, NULL, descent);
1494 }
1495
1496 // ----------------------------------------------------------------------------
1497 // painting
1498 // ----------------------------------------------------------------------------
1499
1500 void wxWindow::AddUpdateRect(int x, int y, int w, int h)
1501 {
1502     m_updateRegion.Union( x, y, w, h );
1503 }
1504
1505 void wxWindow::Refresh(bool eraseBack, const wxRect *rect)
1506 {
1507     m_needsRefresh = true;
1508     Display *display = XtDisplay((Widget) GetMainWidget());
1509     Window thisWindow = XtWindow((Widget) GetMainWidget());
1510
1511     XExposeEvent dummyEvent;
1512     int width, height;
1513     GetSize(&width, &height);
1514
1515     dummyEvent.type = Expose;
1516     dummyEvent.display = display;
1517     dummyEvent.send_event = True;
1518     dummyEvent.window = thisWindow;
1519     if (rect)
1520     {
1521         dummyEvent.x = rect->x;
1522         dummyEvent.y = rect->y;
1523         dummyEvent.width = rect->width;
1524         dummyEvent.height = rect->height;
1525     }
1526     else
1527     {
1528         dummyEvent.x = 0;
1529         dummyEvent.y = 0;
1530         dummyEvent.width = width;
1531         dummyEvent.height = height;
1532     }
1533     dummyEvent.count = 0;
1534
1535     if (eraseBack)
1536     {
1537         wxClientDC dc(this);
1538         wxBrush backgroundBrush(GetBackgroundColour(), wxSOLID);
1539         dc.SetBackground(backgroundBrush);
1540         if (rect)
1541             dc.Clear(*rect);
1542         else
1543             dc.Clear();
1544     }
1545
1546     XSendEvent(display, thisWindow, False, ExposureMask, (XEvent *)&dummyEvent);
1547 }
1548
1549 void wxWindow::DoPaint()
1550 {
1551     //TODO : make a temporary gc so we can do the XCopyArea below
1552     if (m_backingPixmap && !m_needsRefresh)
1553     {
1554       wxPaintDC dc(this);
1555
1556       GC tempGC = (GC) dc.GetBackingGC();
1557
1558       Widget widget = (Widget) GetMainWidget();
1559
1560       int scrollPosX = 0;
1561       int scrollPosY = 0;
1562
1563       // We have to test whether it's a wxScrolledWindow (hack!) because
1564       // otherwise we don't know how many pixels have been scrolled. We might
1565       // solve this in the future by defining virtual wxWindow functions to get
1566       // the scroll position in pixels. Or, each kind of scrolled window has to
1567       // implement backing stores itself, using generic wxWidgets code.
1568       wxScrolledWindow* scrolledWindow = wxDynamicCast(this, wxScrolledWindow);
1569       if ( scrolledWindow )
1570       {
1571           int x, y;
1572           scrolledWindow->CalcScrolledPosition(0, 0, &x, &y);
1573
1574           scrollPosX = - x;
1575           scrollPosY = - y;
1576       }
1577
1578       // TODO: This could be optimized further by only copying the areas in the
1579       //       current update region.
1580
1581       // Only blit the part visible in the client area. The backing pixmap
1582       // always starts at 0, 0 but we may be looking at only a portion of it.
1583       wxSize clientArea = GetClientSize();
1584       int toBlitX = m_pixmapWidth - scrollPosX;
1585       int toBlitY = m_pixmapHeight - scrollPosY;
1586
1587       // Copy whichever is samller, the amount of pixmap we have to copy,
1588       // or the size of the client area.
1589       toBlitX = wxMin(toBlitX, clientArea.x);
1590       toBlitY = wxMin(toBlitY, clientArea.y);
1591
1592       // Make sure we're not negative
1593       toBlitX = wxMax(0, toBlitX);
1594       toBlitY = wxMax(0, toBlitY);
1595
1596       XCopyArea
1597       (
1598        XtDisplay(widget),
1599        (Pixmap) m_backingPixmap,
1600        XtWindow (widget),
1601        tempGC,
1602        scrollPosX, scrollPosY, // Start at the scroll position
1603        toBlitX, toBlitY,       // How much of the pixmap to copy
1604        0, 0                    // Destination
1605       );
1606     }
1607     else
1608     {
1609         wxWindowDC dc(this);
1610         // Set an erase event first
1611         wxEraseEvent eraseEvent(GetId(), &dc);
1612         eraseEvent.SetEventObject(this);
1613         GetEventHandler()->ProcessEvent(eraseEvent);
1614
1615         wxPaintEvent event(GetId());
1616         event.SetEventObject(this);
1617         GetEventHandler()->ProcessEvent(event);
1618
1619         m_needsRefresh = false;
1620     }
1621 }
1622
1623 // ----------------------------------------------------------------------------
1624 // event handlers
1625 // ----------------------------------------------------------------------------
1626
1627 // Responds to colour changes: passes event on to children.
1628 void wxWindow::OnSysColourChanged(wxSysColourChangedEvent& event)
1629 {
1630     wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1631     while ( node )
1632     {
1633         // Only propagate to non-top-level windows
1634         wxWindow *win = node->GetData();
1635         if ( win->GetParent() )
1636         {
1637             wxSysColourChangedEvent event2;
1638             event.SetEventObject(win);
1639             win->GetEventHandler()->ProcessEvent(event2);
1640         }
1641
1642         node = node->GetNext();
1643     }
1644 }
1645
1646 void wxWindow::OnInternalIdle()
1647 {
1648     // This calls the UI-update mechanism (querying windows for
1649     // menu/toolbar/control state information)
1650     if (wxUpdateUIEvent::CanUpdate(this))
1651         UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
1652 }
1653
1654 // ----------------------------------------------------------------------------
1655 // accelerators
1656 // ----------------------------------------------------------------------------
1657
1658 bool wxWindow::ProcessAccelerator(wxKeyEvent& event)
1659 {
1660 #if wxUSE_ACCEL
1661     if (!m_acceleratorTable.Ok())
1662         return false;
1663
1664     int count = m_acceleratorTable.GetCount();
1665     wxAcceleratorEntry* entries = m_acceleratorTable.GetEntries();
1666     int i;
1667     for (i = 0; i < count; i++)
1668     {
1669         wxAcceleratorEntry* entry = & (entries[i]);
1670         if (entry->MatchesEvent(event))
1671         {
1672             // Bingo, we have a match. Now find a control that matches the
1673             // entry command id.
1674
1675             // Need to go up to the top of the window hierarchy, since it might
1676             // be e.g. a menu item
1677             wxWindow* parent = this;
1678             while ( parent && !parent->IsTopLevel() )
1679                 parent = parent->GetParent();
1680
1681             if (!parent)
1682                 return false;
1683
1684             wxFrame* frame = wxDynamicCast(parent, wxFrame);
1685             if ( frame )
1686             {
1687 #if wxUSE_MENUS
1688                 // Try for a menu command
1689                 if (frame->GetMenuBar())
1690                 {
1691                     wxMenuItem* item = frame->GetMenuBar()->FindItem(entry->GetCommand());
1692                     if (item)
1693                     {
1694                         wxCommandEvent commandEvent(wxEVT_COMMAND_MENU_SELECTED, entry->GetCommand());
1695                         commandEvent.SetEventObject(frame);
1696
1697                         // If ProcessEvent returns true (it was handled), then
1698                         // the calling code will skip the event handling.
1699                         return frame->GetEventHandler()->ProcessEvent(commandEvent);
1700                     }
1701                 }
1702 #endif
1703             }
1704
1705             // Find a child matching the command id
1706             wxWindow* child = parent->FindWindow(entry->GetCommand());
1707
1708             // No such child
1709             if (!child)
1710                 return false;
1711
1712             // Now we process those kinds of windows that we can.
1713             // For now, only buttons.
1714             if ( wxDynamicCast(child, wxButton) )
1715             {
1716                 wxCommandEvent commandEvent (wxEVT_COMMAND_BUTTON_CLICKED, child->GetId());
1717                 commandEvent.SetEventObject(child);
1718                 return child->GetEventHandler()->ProcessEvent(commandEvent);
1719             }
1720
1721             return false;
1722         } // matches event
1723     }// for
1724 #endif
1725
1726     // We didn't match the key event against an accelerator.
1727     return false;
1728 }
1729
1730 // ============================================================================
1731 // Motif-specific stuff from here on
1732 // ============================================================================
1733
1734 // ----------------------------------------------------------------------------
1735 // function which maintain the global hash table mapping Widgets to wxWidgets
1736 // ----------------------------------------------------------------------------
1737
1738 bool wxAddWindowToTable(Widget w, wxWindow *win)
1739 {
1740     const long key = (long)w;
1741     if ( wxWidgetHashTable->Get(key))
1742     {
1743         wxLogDebug("Widget table clash: new widget is %ld, %s",
1744                    key, win->GetClassInfo()->GetClassName());
1745         return false;
1746     }
1747
1748     wxWidgetHashTable->Put(key, win);
1749
1750     wxLogTrace("widget", "Widget 0x%p <-> window %p (%s)",
1751                w, win, win->GetClassInfo()->GetClassName());
1752
1753     return true;
1754 }
1755
1756 wxWindow *wxGetWindowFromTable(Widget w)
1757 {
1758     return (wxWindow *)wxWidgetHashTable->Get((long) w);
1759 }
1760
1761 void wxDeleteWindowFromTable(Widget w)
1762 {
1763     wxLogTrace("widget", "Widget 0x%p", (WXWidget)w);
1764
1765     wxWidgetHashTable->Delete((long)w);
1766 }
1767
1768 // ----------------------------------------------------------------------------
1769 // add/remove window from the table
1770 // ----------------------------------------------------------------------------
1771
1772 // Add to hash table, add event handler
1773 bool wxWindow::AttachWidget (wxWindow* WXUNUSED(parent), WXWidget mainWidget,
1774                              WXWidget formWidget, int x, int y, int width, int height)
1775 {
1776     wxAddWindowToTable((Widget) mainWidget, this);
1777     XtAddEventHandler( (Widget) mainWidget,
1778                        ButtonPressMask | ButtonReleaseMask
1779                      | PointerMotionMask,
1780                        False,
1781                        wxPanelItemEventHandler,
1782                        (XtPointer) this);
1783
1784     if (!formWidget)
1785     {
1786         XtTranslations ptr;
1787         XtOverrideTranslations ((Widget) mainWidget,
1788             ptr = XtParseTranslationTable ("<Configure>: resize()"));
1789         XtFree ((char *) ptr);
1790     }
1791
1792     // Some widgets have a parent form widget, e.g. wxRadioBox
1793     if (formWidget)
1794     {
1795         if (!wxAddWindowToTable((Widget) formWidget, this))
1796             return false;
1797
1798         XtTranslations ptr;
1799         XtOverrideTranslations ((Widget) formWidget,
1800             ptr = XtParseTranslationTable ("<Configure>: resize()"));
1801         XtFree ((char *) ptr);
1802     }
1803
1804     if (x == -1)
1805         x = 0;
1806     if (y == -1)
1807         y = 0;
1808     DoSetSize (x, y, width, height, wxSIZE_USE_EXISTING);
1809
1810     return true;
1811 }
1812
1813 // Remove event handler, remove from hash table
1814 bool wxWindow::DetachWidget(WXWidget widget)
1815 {
1816     XtRemoveEventHandler( (Widget) widget,
1817                           ButtonPressMask | ButtonReleaseMask
1818                         | PointerMotionMask,
1819                           False,
1820                           wxPanelItemEventHandler,
1821                           (XtPointer)this);
1822
1823     wxDeleteWindowFromTable((Widget) widget);
1824     return true;
1825 }
1826
1827 // ----------------------------------------------------------------------------
1828 // Motif-specific accessors
1829 // ----------------------------------------------------------------------------
1830
1831 WXWindow wxWindow::GetClientXWindow() const
1832 {
1833     Widget wMain = (Widget)GetClientWidget();
1834     if ( wMain )
1835         return (WXWindow) XtWindow(wMain);
1836     else
1837         return (WXWindow) 0;
1838 }
1839
1840 // Get the underlying X window
1841 WXWindow wxWindow::GetXWindow() const
1842 {
1843     Widget wMain = (Widget)GetMainWidget();
1844     if ( wMain )
1845         return (WXWindow) XtWindow(wMain);
1846     else
1847         return (WXWindow) 0;
1848 }
1849
1850 // Get the underlying X display
1851 WXDisplay *wxWindow::GetXDisplay() const
1852 {
1853     Widget wMain = (Widget)GetMainWidget();
1854     if ( wMain )
1855         return (WXDisplay*) XtDisplay(wMain);
1856     else
1857         return (WXDisplay*) NULL;
1858 }
1859
1860 WXWidget wxWindow::GetMainWidget() const
1861 {
1862     if (m_drawingArea)
1863         return m_drawingArea;
1864     else
1865         return m_mainWidget;
1866 }
1867
1868 WXWidget wxWindow::GetClientWidget() const
1869 {
1870     if (m_drawingArea != (WXWidget) 0)
1871         return m_drawingArea;
1872     else
1873         return GetMainWidget();
1874 }
1875
1876 WXWidget wxWindow::GetTopWidget() const
1877 {
1878     return GetMainWidget();
1879 }
1880
1881 WXWidget wxWindow::GetLabelWidget() const
1882 {
1883     return GetMainWidget();
1884 }
1885
1886 // ----------------------------------------------------------------------------
1887 // Motif callbacks
1888 // ----------------------------------------------------------------------------
1889
1890 // All widgets should have this as their resize proc.
1891 // OnSize sent to wxWindow via client data.
1892 void wxWidgetResizeProc(Widget w, XConfigureEvent *WXUNUSED(event),
1893                         String WXUNUSED(args)[], int *WXUNUSED(num_args))
1894 {
1895     wxWindow *win = wxGetWindowFromTable(w);
1896     if (!win)
1897         return;
1898
1899     if (win->PreResize())
1900     {
1901         int width, height;
1902         win->GetSize(&width, &height);
1903         wxSizeEvent sizeEvent(wxSize(width, height), win->GetId());
1904         sizeEvent.SetEventObject(win);
1905         win->GetEventHandler()->ProcessEvent(sizeEvent);
1906     }
1907 }
1908
1909 static void wxCanvasRepaintProc(Widget drawingArea,
1910                                 XtPointer clientData,
1911                                 XmDrawingAreaCallbackStruct * cbs)
1912 {
1913     if (!wxGetWindowFromTable(drawingArea))
1914         return;
1915
1916     XEvent * event = cbs->event;
1917     wxWindow * win = (wxWindow *) clientData;
1918
1919     switch (event->type)
1920     {
1921     case Expose:
1922         {
1923             win->AddUpdateRect(event->xexpose.x, event->xexpose.y,
1924                                event->xexpose.width, event->xexpose.height);
1925
1926             if (event -> xexpose.count == 0)
1927             {
1928                 win->DoPaint();
1929             }
1930             break;
1931         }
1932     }
1933 }
1934
1935 // Unable to deal with Enter/Leave without a separate EventHandler (Motif 1.1.4)
1936 static void wxCanvasEnterLeave(Widget drawingArea,
1937                                XtPointer WXUNUSED(clientData),
1938                                XCrossingEvent * event)
1939 {
1940     XmDrawingAreaCallbackStruct cbs;
1941     XEvent ev;
1942
1943     ((XCrossingEvent &) ev) = *event;
1944
1945     cbs.reason = XmCR_INPUT;
1946     cbs.event = &ev;
1947
1948     wxCanvasInputEvent(drawingArea, (XtPointer) NULL, &cbs);
1949 }
1950
1951 // Fix to make it work under Motif 1.0 (!)
1952 static void wxCanvasMotionEvent (Widget WXUNUSED(drawingArea),
1953                                  XButtonEvent *WXUNUSED(event))
1954 {
1955 #if XmVersion <= 1000
1956     XmDrawingAreaCallbackStruct cbs;
1957     XEvent ev;
1958
1959     ev = *((XEvent *) event);
1960     cbs.reason = XmCR_INPUT;
1961     cbs.event = &ev;
1962
1963     wxCanvasInputEvent (drawingArea, (XtPointer) NULL, &cbs);
1964 #endif // XmVersion <= 1000
1965 }
1966
1967 static void wxCanvasInputEvent(Widget drawingArea,
1968                                XtPointer WXUNUSED(data),
1969                                XmDrawingAreaCallbackStruct * cbs)
1970 {
1971     wxWindow *canvas = wxGetWindowFromTable(drawingArea);
1972     XEvent* xevent = cbs->event;
1973
1974     if (canvas==NULL)
1975         return;
1976
1977     if (cbs->reason != XmCR_INPUT)
1978         return;
1979
1980     switch (xevent->xany.type)
1981     {
1982     case EnterNotify:
1983     case LeaveNotify:
1984     case ButtonPress:
1985     case ButtonRelease:
1986     case MotionNotify:
1987         {
1988             wxMouseEvent wxevent(0);
1989             if (wxTranslateMouseEvent(wxevent, canvas, drawingArea, xevent))
1990             {
1991                 canvas->GetEventHandler()->ProcessEvent(wxevent);
1992             }
1993             break;
1994         }
1995     case KeyPress:
1996         {
1997             wxKeyEvent event (wxEVT_CHAR);
1998             if (wxTranslateKeyEvent (event, canvas, (Widget) 0, xevent))
1999             {
2000                 // Implement wxFrame::OnCharHook by checking ancestor.
2001                 wxWindow *parent = canvas;
2002                 while (parent && !parent->IsTopLevel())
2003                     parent = parent->GetParent();
2004
2005                 if (parent)
2006                 {
2007                     event.SetEventType(wxEVT_CHAR_HOOK);
2008                     if (parent->GetEventHandler()->ProcessEvent(event))
2009                         return;
2010                 }
2011
2012                 // For simplicity, OnKeyDown is the same as OnChar
2013                 // TODO: filter modifier key presses from OnChar
2014                 event.SetEventType(wxEVT_KEY_DOWN);
2015
2016                 // Only process OnChar if OnKeyDown didn't swallow it
2017                 if (!canvas->GetEventHandler()->ProcessEvent (event))
2018                 {
2019                     event.SetEventType(wxEVT_CHAR);
2020                     canvas->GetEventHandler()->ProcessEvent (event);
2021                 }
2022             }
2023             break;
2024         }
2025     case KeyRelease:
2026         {
2027             wxKeyEvent event (wxEVT_KEY_UP);
2028             if (wxTranslateKeyEvent (event, canvas, (Widget) 0, xevent))
2029             {
2030                 canvas->GetEventHandler()->ProcessEvent (event);
2031             }
2032             break;
2033         }
2034     case FocusIn:
2035         {
2036             if (xevent->xfocus.detail != NotifyPointer)
2037             {
2038                 wxFocusEvent event(wxEVT_SET_FOCUS, canvas->GetId());
2039                 event.SetEventObject(canvas);
2040                 canvas->GetEventHandler()->ProcessEvent(event);
2041             }
2042             break;
2043         }
2044     case FocusOut:
2045         {
2046             if (xevent->xfocus.detail != NotifyPointer)
2047             {
2048                 wxFocusEvent event(wxEVT_KILL_FOCUS, canvas->GetId());
2049                 event.SetEventObject(canvas);
2050                 canvas->GetEventHandler()->ProcessEvent(event);
2051             }
2052             break;
2053         }
2054     default:
2055         break;
2056     }
2057 }
2058
2059 static void wxPanelItemEventHandler(Widget    wid,
2060                                     XtPointer WXUNUSED(client_data),
2061                                     XEvent*   event,
2062                                     Boolean  *continueToDispatch)
2063 {
2064     // Widget can be a label or the actual widget.
2065
2066     wxWindow *window = wxGetWindowFromTable(wid);
2067     if (window)
2068     {
2069         wxMouseEvent wxevent(0);
2070         if (wxTranslateMouseEvent(wxevent, window, wid, event))
2071         {
2072             window->GetEventHandler()->ProcessEvent(wxevent);
2073         }
2074     }
2075
2076     // TODO: probably the key to allowing default behaviour to happen. Say we
2077     // set a m_doDefault flag to false at the start of this function. Then in
2078     // e.g. wxWindow::OnMouseEvent we can call Default() which sets this flag to
2079     // true, indicating that default processing can happen. Thus, behaviour can
2080     // appear to be overridden just by adding an event handler and not calling
2081     // wxWindow::OnWhatever. ALSO, maybe we can use this instead of the current
2082     // way of handling drawing area events, to simplify things.
2083     *continueToDispatch = True;
2084 }
2085
2086 static void wxScrollBarCallback(Widget scrollbar,
2087                                 XtPointer clientData,
2088                                 XmScrollBarCallbackStruct *cbs)
2089 {
2090     wxWindow *win = wxGetWindowFromTable(scrollbar);
2091     wxOrientation orientation = (wxOrientation)wxPtrToUInt(clientData);
2092
2093     wxEventType eventType = wxEVT_NULL;
2094     switch (cbs->reason)
2095     {
2096     case XmCR_INCREMENT:
2097         {
2098             eventType = wxEVT_SCROLLWIN_LINEDOWN;
2099             break;
2100         }
2101     case XmCR_DECREMENT:
2102         {
2103             eventType = wxEVT_SCROLLWIN_LINEUP;
2104             break;
2105         }
2106     case XmCR_DRAG:
2107         {
2108             eventType = wxEVT_SCROLLWIN_THUMBTRACK;
2109             break;
2110         }
2111     case XmCR_VALUE_CHANGED:
2112         {
2113             eventType = wxEVT_SCROLLWIN_THUMBRELEASE;
2114             break;
2115         }
2116     case XmCR_PAGE_INCREMENT:
2117         {
2118             eventType = wxEVT_SCROLLWIN_PAGEDOWN;
2119             break;
2120         }
2121     case XmCR_PAGE_DECREMENT:
2122         {
2123             eventType = wxEVT_SCROLLWIN_PAGEUP;
2124             break;
2125         }
2126     case XmCR_TO_TOP:
2127         {
2128             eventType = wxEVT_SCROLLWIN_TOP;
2129             break;
2130         }
2131     case XmCR_TO_BOTTOM:
2132         {
2133             eventType = wxEVT_SCROLLWIN_BOTTOM;
2134             break;
2135         }
2136     default:
2137         {
2138             // Should never get here
2139             wxFAIL_MSG("Unknown scroll event.");
2140             break;
2141         }
2142     }
2143
2144     wxScrollWinEvent event(eventType,
2145                            cbs->value,
2146                            orientation);
2147     event.SetEventObject( win );
2148     win->GetEventHandler()->ProcessEvent(event);
2149 }
2150
2151 // For repainting arbitrary windows
2152 void wxUniversalRepaintProc(Widget w, XtPointer WXUNUSED(c_data), XEvent *event, char *)
2153 {
2154     wxWindow* win = wxGetWindowFromTable(w);
2155     if (!win)
2156         return;
2157
2158     switch ( event->type )
2159     {
2160         case Expose:
2161         {
2162             Display *display = (Display *) win -> GetXDisplay();
2163
2164             win->AddUpdateRect(event->xexpose.x, event->xexpose.y,
2165                                event->xexpose.width, event->xexpose.height);
2166
2167             if (event -> xexpose.count == 0)
2168             {
2169                 win->DoPaint();
2170             }
2171
2172             break;
2173         }
2174     }
2175 }
2176
2177 // ----------------------------------------------------------------------------
2178 // TranslateXXXEvent() functions
2179 // ----------------------------------------------------------------------------
2180
2181 bool wxTranslateMouseEvent(wxMouseEvent& wxevent, wxWindow *win,
2182                            Widget widget, const XEvent *xevent)
2183 {
2184     switch (xevent->xany.type)
2185     {
2186         case EnterNotify:
2187         case LeaveNotify:
2188 #if 0
2189             fprintf(stderr, "Widget 0x%p <-> window %p (%s), %s\n",
2190                     (WXWidget)widget, win, win->GetClassInfo()->GetClassName(),
2191                     (xevent->xany.type == EnterNotify ? "ENTER" : "LEAVE"));
2192 #endif
2193         case ButtonPress:
2194         case ButtonRelease:
2195         case MotionNotify:
2196         {
2197             int eventx = xevent->xbutton.x, eventy = xevent->xbutton.y;
2198
2199             wxEventType eventType = wxEVT_NULL;
2200
2201             if (xevent->xany.type == LeaveNotify)
2202             {
2203                 eventType = wxEVT_LEAVE_WINDOW;
2204             }
2205             if (xevent->xany.type == EnterNotify)
2206             {
2207                 eventType = wxEVT_ENTER_WINDOW;
2208             }
2209             else if (xevent->xany.type == MotionNotify)
2210             {
2211                 eventType = wxEVT_MOTION;
2212
2213                 if (xevent->xmotion.is_hint == NotifyHint)
2214                 {
2215                     Window root, child;
2216                     int x_root, y_root;
2217                     unsigned int state;
2218                     Display *dpy = XtDisplay (widget);
2219
2220                     XQueryPointer (dpy, XtWindow (widget),
2221                         &root, &child,
2222                         &x_root, &y_root, &eventx, &eventy, &state);
2223                 }
2224             }
2225             else if (xevent->xany.type == ButtonPress)
2226             {
2227                 wxevent.SetTimestamp(xevent->xbutton.time);
2228                 int button = 0;
2229                 if (xevent->xbutton.button == Button1)
2230                 {
2231                     eventType = wxEVT_LEFT_DOWN;
2232                     button = 1;
2233                 }
2234                 else if (xevent->xbutton.button == Button2)
2235                 {
2236                     eventType = wxEVT_MIDDLE_DOWN;
2237                     button = 2;
2238                 }
2239                 else if (xevent->xbutton.button == Button3)
2240                 {
2241                     eventType = wxEVT_RIGHT_DOWN;
2242                     button = 3;
2243                 }
2244
2245                 // check for a double click
2246                 //
2247                 long dclickTime = XtGetMultiClickTime(xevent->xany.display);
2248                 long ts = wxevent.GetTimestamp();
2249
2250                 int buttonLast = win->GetLastClickedButton();
2251                 long lastTS = win->GetLastClickTime();
2252                 if ( buttonLast && buttonLast == button &&
2253                      (ts - lastTS) < dclickTime )
2254                 {
2255                     // I have a dclick
2256                     win->SetLastClick(0, ts);
2257                     if ( eventType == wxEVT_LEFT_DOWN )
2258                         eventType = wxEVT_LEFT_DCLICK;
2259                     else if ( eventType == wxEVT_MIDDLE_DOWN )
2260                         eventType = wxEVT_MIDDLE_DCLICK;
2261                     else if ( eventType == wxEVT_RIGHT_DOWN )
2262                         eventType = wxEVT_RIGHT_DCLICK;
2263                 }
2264                 else
2265                 {
2266                     // not fast enough or different button
2267                     win->SetLastClick(button, ts);
2268                 }
2269             }
2270             else if (xevent->xany.type == ButtonRelease)
2271             {
2272                 if (xevent->xbutton.button == Button1)
2273                 {
2274                     eventType = wxEVT_LEFT_UP;
2275                 }
2276                 else if (xevent->xbutton.button == Button2)
2277                 {
2278                     eventType = wxEVT_MIDDLE_UP;
2279                 }
2280                 else if (xevent->xbutton.button == Button3)
2281                 {
2282                     eventType = wxEVT_RIGHT_UP;
2283                 }
2284                 else
2285                     return false;
2286             }
2287             else
2288             {
2289                 return false;
2290             }
2291
2292             wxevent.SetEventType(eventType);
2293
2294             Position x1, y1;
2295             XtVaGetValues(widget, XmNx, &x1, XmNy, &y1, NULL);
2296
2297             int x2, y2;
2298             win->GetPosition(&x2, &y2);
2299
2300             // The button x/y must be translated to wxWidgets
2301             // window space - the widget might be a label or button,
2302             // within a form.
2303             int dx = 0;
2304             int dy = 0;
2305             if (widget != (Widget)win->GetMainWidget())
2306             {
2307                 dx = x1;
2308                 dy = y1;
2309             }
2310
2311             wxevent.m_x = eventx + dx;
2312             wxevent.m_y = eventy + dy;
2313
2314             wxevent.m_leftDown = ((eventType == wxEVT_LEFT_DOWN)
2315                 || (event_left_is_down (xevent)
2316                 && (eventType != wxEVT_LEFT_UP)));
2317             wxevent.m_middleDown = ((eventType == wxEVT_MIDDLE_DOWN)
2318                 || (event_middle_is_down (xevent)
2319                 && (eventType != wxEVT_MIDDLE_UP)));
2320             wxevent.m_rightDown = ((eventType == wxEVT_RIGHT_DOWN)
2321                 || (event_right_is_down (xevent)
2322                 && (eventType != wxEVT_RIGHT_UP)));
2323
2324             wxevent.m_shiftDown = xevent->xbutton.state & ShiftMask;
2325             wxevent.m_controlDown = xevent->xbutton.state & ControlMask;
2326             wxevent.m_altDown = xevent->xbutton.state & Mod3Mask;
2327             wxevent.m_metaDown = xevent->xbutton.state & Mod1Mask;
2328
2329             wxevent.SetId(win->GetId());
2330             wxevent.SetEventObject(win);
2331
2332             return true;
2333         }
2334     }
2335     return false;
2336 }
2337
2338 bool wxTranslateKeyEvent(wxKeyEvent& wxevent, wxWindow *win,
2339                          Widget WXUNUSED(widget), const XEvent *xevent)
2340 {
2341     switch (xevent->xany.type)
2342     {
2343     case KeyPress:
2344     case KeyRelease:
2345         {
2346             char buf[20];
2347
2348             KeySym keySym;
2349             (void) XLookupString((XKeyEvent *)xevent, buf, 20, &keySym, NULL);
2350             int id = wxCharCodeXToWX (keySym);
2351             // id may be WXK_xxx code - these are outside ASCII range, so we
2352             // can't just use toupper() on id
2353             if (id >= 'a' && id <= 'z')
2354                 id = toupper(id);
2355
2356             if (xevent->xkey.state & ShiftMask)
2357                 wxevent.m_shiftDown = true;
2358             if (xevent->xkey.state & ControlMask)
2359                 wxevent.m_controlDown = true;
2360             if (xevent->xkey.state & Mod3Mask)
2361                 wxevent.m_altDown = true;
2362             if (xevent->xkey.state & Mod1Mask)
2363                 wxevent.m_metaDown = true;
2364             wxevent.SetEventObject(win);
2365             wxevent.m_keyCode = id;
2366             wxevent.SetTimestamp(xevent->xkey.time);
2367
2368             wxevent.m_x = xevent->xbutton.x;
2369             wxevent.m_y = xevent->xbutton.y;
2370
2371             if (id > -1)
2372                 return true;
2373             else
2374                 return false;
2375             break;
2376         }
2377     default:
2378         break;
2379     }
2380     return false;
2381 }
2382
2383 // ----------------------------------------------------------------------------
2384 // Colour stuff
2385 // ----------------------------------------------------------------------------
2386
2387 #define YAllocColor XAllocColor
2388 XColor g_itemColors[5];
2389 int wxComputeColours (Display *display, wxColour * back, wxColour * fore)
2390 {
2391     int result;
2392     static XmColorProc colorProc;
2393
2394     result = wxNO_COLORS;
2395
2396     if (back)
2397     {
2398         g_itemColors[0].red = (((long) back->Red ()) << 8);
2399         g_itemColors[0].green = (((long) back->Green ()) << 8);
2400         g_itemColors[0].blue = (((long) back->Blue ()) << 8);
2401         g_itemColors[0].flags = DoRed | DoGreen | DoBlue;
2402         if (colorProc == (XmColorProc) NULL)
2403         {
2404             // Get a ptr to the actual function
2405             colorProc = XmSetColorCalculation ((XmColorProc) NULL);
2406             // And set it back to motif.
2407             XmSetColorCalculation (colorProc);
2408         }
2409         (*colorProc) (&g_itemColors[wxBACK_INDEX],
2410             &g_itemColors[wxFORE_INDEX],
2411             &g_itemColors[wxSELE_INDEX],
2412             &g_itemColors[wxTOPS_INDEX],
2413             &g_itemColors[wxBOTS_INDEX]);
2414         result = wxBACK_COLORS;
2415     }
2416     if (fore)
2417     {
2418         g_itemColors[wxFORE_INDEX].red = (((long) fore->Red ()) << 8);
2419         g_itemColors[wxFORE_INDEX].green = (((long) fore->Green ()) << 8);
2420         g_itemColors[wxFORE_INDEX].blue = (((long) fore->Blue ()) << 8);
2421         g_itemColors[wxFORE_INDEX].flags = DoRed | DoGreen | DoBlue;
2422         if (result == wxNO_COLORS)
2423             result = wxFORE_COLORS;
2424     }
2425
2426     Display *dpy = display;
2427     Colormap cmap = (Colormap) wxTheApp->GetMainColormap((WXDisplay*) dpy);
2428
2429     if (back)
2430     {
2431         /* 5 Colours to allocate */
2432         for (int i = 0; i < 5; i++)
2433             if (!YAllocColor (dpy, cmap, &g_itemColors[i]))
2434                 result = wxNO_COLORS;
2435     }
2436     else if (fore)
2437     {
2438         /* Only 1 colour to allocate */
2439         if (!YAllocColor (dpy, cmap, &g_itemColors[wxFORE_INDEX]))
2440             result = wxNO_COLORS;
2441     }
2442
2443     return result;
2444 }
2445
2446 // Changes the foreground and background colours to be derived from the current
2447 // background colour. To change the foreground colour, you must call
2448 // SetForegroundColour explicitly.
2449 void wxWindow::ChangeBackgroundColour()
2450 {
2451     WXWidget mainWidget = GetMainWidget();
2452     if ( mainWidget )
2453         wxDoChangeBackgroundColour(mainWidget, m_backgroundColour);
2454     if ( m_scrolledWindow && mainWidget != m_scrolledWindow )
2455         wxDoChangeForegroundColour(m_scrolledWindow, m_backgroundColour);
2456 }
2457
2458 void wxWindow::ChangeForegroundColour()
2459 {
2460     WXWidget mainWidget = GetMainWidget();
2461     if ( mainWidget )
2462         wxDoChangeForegroundColour(mainWidget, m_foregroundColour);
2463     if ( m_scrolledWindow && mainWidget != m_scrolledWindow )
2464         wxDoChangeForegroundColour(m_scrolledWindow, m_foregroundColour);
2465 }
2466
2467 bool wxWindow::SetBackgroundColour(const wxColour& col)
2468 {
2469     if ( !wxWindowBase::SetBackgroundColour(col) )
2470         return false;
2471
2472     ChangeBackgroundColour();
2473
2474     return true;
2475 }
2476
2477 bool wxWindow::SetForegroundColour(const wxColour& col)
2478 {
2479     if ( !wxWindowBase::SetForegroundColour(col) )
2480         return false;
2481
2482     ChangeForegroundColour();
2483
2484     return true;
2485 }
2486
2487 void wxWindow::ChangeFont(bool keepOriginalSize)
2488 {
2489     // Note that this causes the widget to be resized back
2490     // to its original size! We therefore have to set the size
2491     // back again. TODO: a better way in Motif?
2492     Widget w = (Widget) GetLabelWidget(); // Usually the main widget
2493     if (w && m_font.Ok())
2494     {
2495         int width, height, width1, height1;
2496         GetSize(& width, & height);
2497
2498         wxDoChangeFont( GetLabelWidget(), m_font );
2499
2500         GetSize(& width1, & height1);
2501         if (keepOriginalSize && (width != width1 || height != height1))
2502         {
2503             SetSize(-1, -1, width, height);
2504         }
2505     }
2506 }
2507
2508 // ----------------------------------------------------------------------------
2509 // global functions
2510 // ----------------------------------------------------------------------------
2511
2512 wxWindow *wxGetActiveWindow()
2513 {
2514     // TODO
2515     wxFAIL_MSG("Not implemented");
2516     return NULL;
2517 }
2518
2519 /* static */
2520 wxWindow *wxWindowBase::GetCapture()
2521 {
2522     return (wxWindow *)g_captureWindow;
2523 }
2524
2525
2526 // Find the wxWindow at the current mouse position, returning the mouse
2527 // position.
2528 wxWindow* wxFindWindowAtPointer(wxPoint& pt)
2529 {
2530     return wxFindWindowAtPoint(wxGetMousePosition());
2531 }
2532
2533 // Get the current mouse position.
2534 wxPoint wxGetMousePosition()
2535 {
2536     Display *display = wxGlobalDisplay();
2537     Window rootWindow = RootWindowOfScreen (DefaultScreenOfDisplay(display));
2538     Window rootReturn, childReturn;
2539     int rootX, rootY, winX, winY;
2540     unsigned int maskReturn;
2541
2542     XQueryPointer (display,
2543                    rootWindow,
2544                    &rootReturn,
2545                    &childReturn,
2546                    &rootX, &rootY, &winX, &winY, &maskReturn);
2547     return wxPoint(rootX, rootY);
2548 }
2549
2550
2551 // ----------------------------------------------------------------------------
2552 // wxNoOptimize: switch off size optimization
2553 // ----------------------------------------------------------------------------
2554
2555 int wxNoOptimize::ms_count = 0;
2556