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 nott 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 // constants
  90 // ----------------------------------------------------------------------------
  91
  92 static const int SCROLL_MARGIN = 4;
  93
  94 // ----------------------------------------------------------------------------
  95 // global variables for this module
  96 // ----------------------------------------------------------------------------
  97
  98 extern wxHashTable *wxWidgetHashTable;
  99 static wxWindow* g_captureWindow = NULL;
 100
 101
 102 // ----------------------------------------------------------------------------
 103 // private functions
 104 // ----------------------------------------------------------------------------
 105
 106 static void wxCanvasRepaintProc(Widget, XtPointer, XmDrawingAreaCallbackStruct * cbs);
 107 static void wxCanvasInputEvent(Widget drawingArea, XtPointer data, XmDrawingAreaCallbackStruct * cbs);
 108 static void wxCanvasMotionEvent(Widget, XButtonEvent * event);
 109 static void wxCanvasEnterLeave(Widget drawingArea, XtPointer clientData, XCrossingEvent * event);
 110 static void wxScrollBarCallback(Widget widget, XtPointer clientData,
 111                                 XmScrollBarCallbackStruct *cbs);
 112 static void wxPanelItemEventHandler(Widget    wid,
 113                                     XtPointer client_data,
 114                                     XEvent*   event,
 115                                     Boolean  *continueToDispatch);
 116
 117 // unused for now
 118 #if 0
 119
 120 // Helper function for 16-bit fonts
 121 static int str16len(const char *s)
 122 {
 123     int count = 0;
 124
 125     while (s[0] && s[1]) {
 126         count++;
 127         s += 2;
 128     }
 129
 130     return count;
 131 }
 132
 133 #endif // 0
 134
 135 // ----------------------------------------------------------------------------
 136 // macros
 137 // ----------------------------------------------------------------------------
 138
 139 #define event_left_is_down(x) ((x)->xbutton.state & Button1Mask)
 140 #define event_middle_is_down(x) ((x)->xbutton.state & Button2Mask)
 141 #define event_right_is_down(x) ((x)->xbutton.state & Button3Mask)
 142
 143 // ----------------------------------------------------------------------------
 144 // event tables
 145 // ----------------------------------------------------------------------------
 146
 147     IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxWindowBase)
 148
 149     BEGIN_EVENT_TABLE(wxWindow, wxWindowBase)
 150         EVT_SYS_COLOUR_CHANGED(wxWindow::OnSysColourChanged)
 151     END_EVENT_TABLE()
 152
 153 // ============================================================================
 154 // implementation
 155 // ============================================================================
 156
 157 // ----------------------------------------------------------------------------
 158 // helper functions
 159 // ----------------------------------------------------------------------------
 160
 161 void wxWindow::UnmanageAndDestroy(WXWidget widget)
 162 {
 163     Widget w = (Widget)widget;
 164     if ( w )
 165     {
 166         XtUnmanageChild(w);
 167         XtDestroyWidget(w);
 168     }
 169 }
 170
 171 bool wxWindow::MapOrUnmap(WXWidget widget, bool domap)
 172 {
 173     Widget w = (Widget)widget;
 174     if ( !w )
 175         return FALSE;
 176
 177     //   Rationale: a lot of common operations (including but not
 178     // limited to moving, resizing and appending items to a listbox)
 179     // unmamange the widget, do their work, then manage it again.
 180     // This means that, for example adding an item to a listbox will show it,
 181     // or that most controls are shown every time they are moved or resized!
 182     XtSetMappedWhenManaged( w, domap );
 183
 184     // if the widget is not unmanaged, it still intercepts
 185     // mouse events, even if it is not mapped (and hence invisible)
 186     if ( domap )
 187     {
 188         XtManageChild(w);
 189         // XtMapWidget(w);
 190     }
 191     else
 192     {
 193         XtUnmanageChild(w);
 194         // XtUnmapWidget(w);
 195     }
 196
 197     return TRUE;
 198 }
 199
 200 // ----------------------------------------------------------------------------
 201 // constructors
 202 // ----------------------------------------------------------------------------
 203
 204 void wxWindow::Init()
 205 {
 206     // Motif-specific
 207     m_needsRefresh = TRUE;
 208     m_mainWidget = (WXWidget) 0;
 209
 210     m_winCaptured = FALSE;
 211
 212     m_isShown = TRUE;
 213
 214     m_hScrollBar =
 215     m_vScrollBar =
 216     m_borderWidget =
 217     m_scrolledWindow =
 218     m_drawingArea = (WXWidget) 0;
 219
 220     m_scrollPosX =
 221     m_scrollPosY = 0;
 222
 223     m_backingPixmap = (WXPixmap) 0;
 224     m_pixmapWidth =
 225     m_pixmapHeight = 0;
 226
 227     m_pixmapOffsetX =
 228     m_pixmapOffsetY = 0;
 229
 230     m_lastTS = 0;
 231     m_lastButton = 0;
 232 }
 233
 234 // real construction (Init() must have been called before!)
 235 bool wxWindow::Create(wxWindow *parent, wxWindowID id,
 236                       const wxPoint& pos,
 237                       const wxSize& size,
 238                       long style,
 239                       const wxString& name)
 240 {
 241     wxCHECK_MSG( parent, FALSE, "can't create wxWindow without parent" );
 242
 243     CreateBase(parent, id, pos, size, style, wxDefaultValidator, name);
 244
 245     parent->AddChild(this);
 246
 247     m_backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 248     m_foregroundColour = *wxBLACK;
 249
 250     //// TODO: we should probably optimize by only creating a
 251     //// a drawing area if we have one or more scrollbars (wxVSCROLL/wxHSCROLL).
 252     //// But for now, let's simplify things by always creating the
 253     //// drawing area, since otherwise the translations are different.
 254
 255     // New translations for getting mouse motion feedback
 256     static const String translations =
 257 "<Btn1Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 258 <Btn2Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 259 <Btn3Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 260 <BtnMotion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 261 <Btn1Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 262 <Btn2Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 263 <Btn3Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 264 <Btn1Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 265 <Btn2Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 266 <Btn3Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 267 <Motion>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 268 <EnterWindow>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 269 <LeaveWindow>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 270 <Key>: DrawingAreaInput()";
 271
 272     XtActionsRec actions[1];
 273     actions[0].string = "wxCanvasMotionEvent";
 274     actions[0].proc = (XtActionProc) wxCanvasMotionEvent;
 275     XtAppAddActions ((XtAppContext) wxTheApp->GetAppContext(), actions, 1);
 276
 277     Widget parentWidget = (Widget) parent->GetClientWidget();
 278     m_borderWidget = wxCreateBorderWidget( (WXWidget)parentWidget, style );
 279
 280     m_scrolledWindow = (WXWidget)XtVaCreateManagedWidget
 281                                  (
 282                                   "scrolledWindow",
 283                                   xmScrolledWindowWidgetClass,
 284                                   m_borderWidget ? (Widget) m_borderWidget
 285                                                  : parentWidget,
 286                                   XmNresizePolicy, XmRESIZE_NONE,
 287                                   XmNspacing, 0,
 288                                   XmNscrollingPolicy, XmAPPLICATION_DEFINED,
 289                                   //XmNscrollBarDisplayPolicy, XmAS_NEEDED,
 290                                   NULL
 291                                  );
 292
 293     XtTranslations ptr = XtParseTranslationTable(translations);
 294     m_drawingArea = (WXWidget)XtVaCreateWidget
 295                               (
 296                                name,
 297                                xmDrawingAreaWidgetClass, (Widget) m_scrolledWindow,
 298                                XmNunitType, XmPIXELS,
 299                                // XmNresizePolicy, XmRESIZE_ANY,
 300                                XmNresizePolicy, XmRESIZE_NONE,
 301                                XmNmarginHeight, 0,
 302                                XmNmarginWidth, 0,
 303                                XmNtranslations, ptr,
 304                                NULL
 305                               );
 306     XtFree((char *) ptr);
 307
 308 #if 0
 309     if (GetWindowStyleFlag() & wxOVERRIDE_KEY_TRANSLATIONS)
 310     {
 311         ptr = XtParseTranslationTable ("<Key>: DrawingAreaInput()");
 312         XtOverrideTranslations ((Widget) m_drawingArea, ptr);
 313         XtFree ((char *) ptr);
 314     }
 315 #endif // 0
 316
 317     wxAddWindowToTable((Widget) m_drawingArea, this);
 318     wxAddWindowToTable((Widget) m_scrolledWindow, this);
 319
 320     // This order is very important in Motif 1.2.1
 321     XtRealizeWidget ((Widget) m_scrolledWindow);
 322     XtRealizeWidget ((Widget) m_drawingArea);
 323     XtManageChild ((Widget) m_drawingArea);
 324
 325     ptr = XtParseTranslationTable("<Configure>: resize()");
 326     XtOverrideTranslations((Widget) m_drawingArea, ptr);
 327     XtFree ((char *) ptr);
 328
 329     XtAddCallback ((Widget) m_drawingArea, XmNexposeCallback, (XtCallbackProc) wxCanvasRepaintProc, (XtPointer) this);
 330     XtAddCallback ((Widget) m_drawingArea, XmNinputCallback, (XtCallbackProc) wxCanvasInputEvent, (XtPointer) this);
 331
 332     XtAddEventHandler(
 333                       (Widget)m_drawingArea,
 334                        PointerMotionHintMask | EnterWindowMask |
 335                        LeaveWindowMask | FocusChangeMask,
 336                        False,
 337                        (XtEventHandler) wxCanvasEnterLeave,
 338                        (XtPointer) this
 339                      );
 340
 341     // Scrolled widget needs to have its colour changed or we get a little blue
 342     // square where the scrollbars abutt
 343     wxColour backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 344     wxDoChangeBackgroundColour(m_scrolledWindow, backgroundColour, TRUE);
 345     wxDoChangeBackgroundColour(m_drawingArea, backgroundColour, TRUE);
 346
 347     XmScrolledWindowSetAreas(
 348                              (Widget)m_scrolledWindow,
 349                              (Widget) 0, (Widget) 0,
 350                              (Widget) m_drawingArea);
 351
 352     // Without this, the cursor may not be restored properly (e.g. in splitter
 353     // sample).
 354     SetCursor(*wxSTANDARD_CURSOR);
 355     SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
 356     DoSetSizeIntr(pos.x, pos.y, size.x,size.y, wxSIZE_AUTO, TRUE);
 357     return TRUE;
 358 }
 359
 360 // Destructor
 361 wxWindow::~wxWindow()
 362 {
 363     if (g_captureWindow == this)
 364         g_captureWindow = NULL;
 365
 366     m_isBeingDeleted = TRUE;
 367
 368     // Motif-specific actions first
 369     WXWidget wMain = GetMainWidget();
 370     if ( wMain )
 371     {
 372         // Removes event handlers
 373         DetachWidget(wMain);
 374     }
 375
 376     // If m_drawingArea, we're a fully-fledged window with drawing area,
 377     // scrollbars etc. (what wxCanvas used to be)
 378     if ( m_drawingArea )
 379     {
 380         // Destroy children before destroying self
 381         DestroyChildren();
 382
 383         if (m_backingPixmap)
 384             XFreePixmap (XtDisplay ((Widget) GetMainWidget()), (Pixmap) m_backingPixmap);
 385
 386         Widget w = (Widget) m_drawingArea;
 387         wxDeleteWindowFromTable(w);
 388
 389         if (w)
 390         {
 391             XtDestroyWidget(w);
 392             m_drawingArea = (WXWidget) 0;
 393         }
 394
 395         // Only if we're _really_ a canvas (not a dialog box/panel)
 396         if (m_scrolledWindow)
 397         {
 398             wxDeleteWindowFromTable((Widget) m_scrolledWindow);
 399         }
 400
 401         if (m_hScrollBar)
 402         {
 403             wxDeleteWindowFromTable((Widget) m_hScrollBar);
 404             XtUnmanageChild((Widget) m_hScrollBar);
 405         }
 406         if (m_vScrollBar)
 407         {
 408             wxDeleteWindowFromTable((Widget) m_vScrollBar);
 409             XtUnmanageChild((Widget) m_vScrollBar);
 410         }
 411
 412         if (m_hScrollBar)
 413             XtDestroyWidget((Widget) m_hScrollBar);
 414         if (m_vScrollBar)
 415             XtDestroyWidget((Widget) m_vScrollBar);
 416
 417         UnmanageAndDestroy(m_scrolledWindow);
 418
 419         if (m_borderWidget)
 420         {
 421             XtDestroyWidget ((Widget) m_borderWidget);
 422             m_borderWidget = (WXWidget) 0;
 423         }
 424     }
 425     else // Why wasn't this here before? JACS 8/3/2000
 426         DestroyChildren();
 427
 428
 429     // Destroy the window
 430     if (GetMainWidget())
 431     {
 432         // If this line (XtDestroyWidget) causes a crash, you may comment it out.
 433         // Child widgets will get destroyed automatically when a frame
 434         // or dialog is destroyed, but before that you may get some memory
 435         // leaks and potential layout problems if you delete and then add
 436         // child windows.
 437
 438         // GRG, Feb/2000: commented this out when adding support for
 439         //   wxSCROLL[WIN]_THUMBRELEASE events. Also it was reported
 440         //   that this call crashed wxMotif under OS/2, so it seems
 441         //   that leaving it out is the right thing to do.
 442         // SN, Feb/2000: newgrid/griddemo shows why it is needed :-(
 443         XtDestroyWidget((Widget) GetMainWidget());
 444         SetMainWidget((WXWidget) NULL);
 445     }
 446 }
 447
 448 // ----------------------------------------------------------------------------
 449 // scrollbar management
 450 // ----------------------------------------------------------------------------
 451
 452 WXWidget wxWindow::DoCreateScrollBar(WXWidget parent,
 453                                      wxOrientation orientation,
 454                                      void (*callback)())
 455 {
 456     int orient = ( orientation & wxHORIZONTAL ) ? XmHORIZONTAL : XmVERTICAL;
 457     Widget sb =
 458         XtVaCreateManagedWidget( "scrollBarWidget",
 459                                  xmScrollBarWidgetClass, (Widget)parent,
 460                                  XmNorientation, orient,
 461                                  XmNincrement, 1,
 462                                  XmNvalue, 0,
 463                                  NULL );
 464
 465     XtPointer o = (XtPointer)orientation;
 466     XtCallbackProc cb = (XtCallbackProc)callback;
 467
 468     XtAddCallback( sb, XmNvalueChangedCallback, cb, o );
 469     XtAddCallback( sb, XmNdragCallback, cb, o );
 470     XtAddCallback( sb, XmNincrementCallback, cb, o );
 471     XtAddCallback( sb, XmNdecrementCallback, cb, o );
 472     XtAddCallback( sb, XmNpageIncrementCallback, cb, o );
 473     XtAddCallback( sb, XmNpageDecrementCallback, cb, o );
 474     XtAddCallback( sb, XmNtoTopCallback, cb, o );
 475     XtAddCallback( sb, XmNtoBottomCallback, cb, o );
 476
 477     return (WXWidget)sb;
 478 }
 479
 480 // Helper function
 481 void wxWindow::CreateScrollbar(wxOrientation orientation)
 482 {
 483     wxCHECK_RET( m_drawingArea, "this window can't have scrollbars" );
 484
 485     XtVaSetValues( (Widget) m_scrolledWindow,
 486                    XmNresizePolicy, XmRESIZE_NONE,
 487                    NULL );
 488
 489     wxColour backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 490     // Add scrollbars if required
 491     if (orientation == wxHORIZONTAL)
 492     {
 493         m_hScrollBar = DoCreateScrollBar( m_scrolledWindow, wxHORIZONTAL,
 494                                           (void (*)())wxScrollBarCallback );
 495
 496         wxDoChangeBackgroundColour(m_hScrollBar, backgroundColour, TRUE);
 497
 498         XtRealizeWidget( (Widget)m_hScrollBar );
 499
 500         XtVaSetValues((Widget) m_scrolledWindow,
 501             XmNhorizontalScrollBar, (Widget) m_hScrollBar,
 502             NULL);
 503
 504         wxAddWindowToTable( (Widget)m_hScrollBar, this );
 505     }
 506     else if (orientation == wxVERTICAL)
 507     {
 508         m_vScrollBar = DoCreateScrollBar( m_scrolledWindow, wxVERTICAL,
 509                                           (void (*)())wxScrollBarCallback );
 510
 511         wxDoChangeBackgroundColour(m_vScrollBar, backgroundColour, TRUE);
 512
 513         XtRealizeWidget((Widget)m_vScrollBar);
 514
 515         XtVaSetValues((Widget) m_scrolledWindow,
 516             XmNverticalScrollBar, (Widget) m_vScrollBar,
 517             NULL);
 518
 519         wxAddWindowToTable( (Widget)m_vScrollBar, this );
 520     }
 521
 522     XtVaSetValues( (Widget) m_scrolledWindow,
 523                    XmNresizePolicy, XmRESIZE_ANY,
 524                    NULL );
 525 }
 526
 527 void wxWindow::DestroyScrollbar(wxOrientation orientation)
 528 {
 529     wxCHECK_RET( m_drawingArea, "this window can't have scrollbars" );
 530
 531     XtVaSetValues((Widget) m_scrolledWindow,
 532                   XmNresizePolicy, XmRESIZE_NONE,
 533                   NULL);
 534     String stringSB = orientation == wxHORIZONTAL ?
 535         XmNhorizontalScrollBar : XmNverticalScrollBar;
 536     WXWidget* widgetSB = orientation == wxHORIZONTAL ?
 537         &m_hScrollBar : &m_vScrollBar;
 538
 539     if( *widgetSB )
 540     {
 541         wxDeleteWindowFromTable( (Widget)*widgetSB );
 542         XtDestroyWidget( (Widget)*widgetSB );
 543         *widgetSB = (WXWidget)NULL;
 544     }
 545
 546     XtVaSetValues( (Widget)m_scrolledWindow,
 547                    stringSB, (Widget) 0,
 548                    NULL );
 549
 550     XtVaSetValues((Widget) m_scrolledWindow,
 551                   XmNresizePolicy, XmRESIZE_ANY,
 552                   NULL);
 553 }
 554
 555 // ---------------------------------------------------------------------------
 556 // basic operations
 557 // ---------------------------------------------------------------------------
 558
 559 void wxWindow::SetFocus()
 560 {
 561     Widget wMain = (Widget) GetMainWidget();
 562     XmProcessTraversal(wMain, XmTRAVERSE_CURRENT);
 563     XmProcessTraversal((Widget) GetMainWidget(), XmTRAVERSE_CURRENT);
 564 }
 565
 566 // Get the window with the focus
 567 wxWindow *wxWindowBase::FindFocus()
 568 {
 569     // TODO Problems:
 570     // (1) Can there be multiple focussed widgets in an application?
 571     // In which case we need to find the top-level window that's
 572     // currently active.
 573     // (2) The widget with the focus may not be in the widget table
 574     // depending on which widgets I put in the table
 575     wxWindow *winFocus = (wxWindow *)NULL;
 576     for ( wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst();
 577           node;
 578           node = node->GetNext() )
 579     {
 580         wxWindow *win = node->GetData();
 581
 582         Widget w = XmGetFocusWidget ((Widget) win->GetTopWidget());
 583
 584         if (w != (Widget) NULL)
 585         {
 586             winFocus = wxGetWindowFromTable(w);
 587             if ( winFocus )
 588                 break;
 589         }
 590     }
 591
 592     return winFocus;
 593 }
 594
 595 bool wxWindow::Enable(bool enable)
 596 {
 597     if ( !wxWindowBase::Enable(enable) )
 598         return FALSE;
 599
 600     Widget wMain = (Widget)GetMainWidget();
 601     if ( wMain )
 602     {
 603         XtSetSensitive(wMain, enable);
 604         XmUpdateDisplay(wMain);
 605     }
 606
 607     return TRUE;
 608 }
 609
 610 bool wxWindow::Show(bool show)
 611 {
 612     if ( !wxWindowBase::Show(show) )
 613         return FALSE;
 614
 615     if (m_borderWidget || m_scrolledWindow)
 616     {
 617         MapOrUnmap(m_borderWidget ? m_borderWidget : m_scrolledWindow, show);
 618         // MapOrUnmap(m_drawingArea, show);
 619     }
 620     else
 621     {
 622         if ( !MapOrUnmap(GetTopWidget(), show) )
 623             MapOrUnmap(GetMainWidget(), show);
 624     }
 625
 626     return TRUE;
 627 }
 628
 629 // Raise the window to the top of the Z order
 630 void wxWindow::Raise()
 631 {
 632     Widget wTop = (Widget) GetTopWidget();
 633     Window window = XtWindow(wTop);
 634     XRaiseWindow(XtDisplay(wTop), window);
 635 }
 636
 637 // Lower the window to the bottom of the Z order
 638 void wxWindow::Lower()
 639 {
 640     Widget wTop = (Widget) GetTopWidget();
 641     Window window = XtWindow(wTop);
 642     XLowerWindow(XtDisplay(wTop), window);
 643 }
 644
 645 void wxWindow::SetTitle(const wxString& title)
 646 {
 647     XtVaSetValues((Widget)GetMainWidget(), XmNtitle, title.c_str(), NULL);
 648 }
 649
 650 wxString wxWindow::GetTitle() const
 651 {
 652     char *title;
 653     XtVaGetValues((Widget)GetMainWidget(), XmNtitle, &title, NULL);
 654
 655     return wxString(title);
 656 }
 657
 658 void wxWindow::DoCaptureMouse()
 659 {
 660     g_captureWindow = this;
 661     if ( m_winCaptured )
 662         return;
 663
 664     Widget wMain = (Widget)GetMainWidget();
 665     if ( wMain )
 666         XtAddGrab(wMain, TRUE, FALSE);
 667
 668     m_winCaptured = TRUE;
 669 }
 670
 671 void wxWindow::DoReleaseMouse()
 672 {
 673     g_captureWindow = NULL;
 674     if ( !m_winCaptured )
 675         return;
 676
 677     Widget wMain = (Widget)GetMainWidget();
 678     if ( wMain )
 679         XtRemoveGrab(wMain);
 680
 681     m_winCaptured = FALSE;
 682 }
 683
 684 bool wxWindow::SetFont(const wxFont& font)
 685 {
 686     if ( !wxWindowBase::SetFont(font) )
 687     {
 688         // nothing to do
 689         return FALSE;
 690     }
 691
 692     ChangeFont();
 693
 694     return TRUE;
 695 }
 696
 697 bool wxWindow::SetCursor(const wxCursor& cursor)
 698 {
 699     if ( !wxWindowBase::SetCursor(cursor) )
 700     {
 701         // no change
 702         return FALSE;
 703     }
 704
 705     //    wxASSERT_MSG( m_cursor.Ok(),
 706     //                  wxT("cursor must be valid after call to the base version"));
 707     wxCursor* cursor2 = NULL;
 708     if (m_cursor.Ok())
 709         cursor2 = & m_cursor;
 710     else
 711         cursor2 = wxSTANDARD_CURSOR;
 712
 713     WXDisplay *dpy = GetXDisplay();
 714     WXCursor x_cursor = cursor2->GetXCursor(dpy);
 715
 716     Widget w = (Widget) GetMainWidget();
 717     Window win = XtWindow(w);
 718     XDefineCursor((Display*) dpy, win, (Cursor) x_cursor);
 719
 720     return TRUE;
 721 }
 722
 723 // Coordinates relative to the window
 724 void wxWindow::WarpPointer (int x, int y)
 725 {
 726     Widget wClient = (Widget)GetClientWidget();
 727
 728     XWarpPointer(XtDisplay(wClient), None, XtWindow(wClient), 0, 0, 0, 0, x, y);
 729 }
 730
 731 // ---------------------------------------------------------------------------
 732 // scrolling stuff
 733 // ---------------------------------------------------------------------------
 734
 735 int wxWindow::GetScrollPos(int orient) const
 736 {
 737     if (orient == wxHORIZONTAL)
 738         return m_scrollPosX;
 739     else
 740         return m_scrollPosY;
 741
 742 #if 0
 743     Widget scrollBar = (Widget) ((orient == wxHORIZONTAL) ? m_hScrollBar : m_vScrollBar);
 744     if (scrollBar)
 745     {
 746         int pos;
 747         XtVaGetValues(scrollBar, XmNvalue, &pos, NULL);
 748         return pos;
 749     }
 750     else
 751         return 0;
 752 #endif // 0
 753 }
 754
 755 // This now returns the whole range, not just the number of positions that we
 756 // can scroll.
 757 int wxWindow::GetScrollRange(int orient) const
 758 {
 759     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 760     // CE scintilla windows don't always have these scrollbars
 761     // and it tends to pile up a whole bunch of asserts
 762     //wxCHECK_MSG( scrollBar, 0, "no such scrollbar" );
 763
 764     int range = 0;
 765     if (scrollBar)
 766         XtVaGetValues(scrollBar, XmNmaximum, &range, NULL);
 767     return range;
 768 }
 769
 770 int wxWindow::GetScrollThumb(int orient) const
 771 {
 772     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 773     //wxCHECK_MSG( scrollBar, 0, "no such scrollbar" );
 774
 775     int thumb = 0;
 776     if (scrollBar)
 777         XtVaGetValues(scrollBar, XmNsliderSize, &thumb, NULL);
 778     return thumb;
 779 }
 780
 781 void wxWindow::SetScrollPos(int orient, int pos, bool WXUNUSED(refresh))
 782 {
 783     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 784
 785     if ( scrollBar )
 786     {
 787         XtVaSetValues (scrollBar, XmNvalue, pos, NULL);
 788     }
 789
 790     SetInternalScrollPos((wxOrientation)orient, pos);
 791 }
 792
 793 // New function that will replace some of the above.
 794 void wxWindow::SetScrollbar(int orient, int pos, int thumbVisible,
 795                             int range, bool WXUNUSED(refresh))
 796 {
 797     int oldW, oldH;
 798     GetSize(& oldW, & oldH);
 799
 800     if (range == 0)
 801         range = 1;
 802     if (thumbVisible == 0)
 803         thumbVisible = 1;
 804
 805     if (thumbVisible > range)
 806         thumbVisible = range;
 807
 808     // Save the old state to see if it changed
 809     WXWidget oldScrollBar = GetScrollbar((wxOrientation)orient);
 810
 811     if (orient == wxHORIZONTAL)
 812     {
 813         if (thumbVisible == range)
 814         {
 815             if (m_hScrollBar)
 816                 DestroyScrollbar(wxHORIZONTAL);
 817         }
 818         else
 819         {
 820             if (!m_hScrollBar)
 821                 CreateScrollbar(wxHORIZONTAL);
 822         }
 823     }
 824     if (orient == wxVERTICAL)
 825     {
 826         if (thumbVisible == range)
 827         {
 828             if (m_vScrollBar)
 829                 DestroyScrollbar(wxVERTICAL);
 830         }
 831         else
 832         {
 833             if (!m_vScrollBar)
 834                 CreateScrollbar(wxVERTICAL);
 835         }
 836     }
 837     WXWidget newScrollBar =  GetScrollbar((wxOrientation)orient);
 838
 839     if (oldScrollBar != newScrollBar)
 840     {
 841         // This is important! Without it, scrollbars misbehave badly.
 842         XtUnrealizeWidget((Widget) m_scrolledWindow);
 843         XmScrolledWindowSetAreas ((Widget) m_scrolledWindow, (Widget) m_hScrollBar, (Widget) m_vScrollBar, (Widget) m_drawingArea);
 844         XtRealizeWidget((Widget) m_scrolledWindow);
 845         XtManageChild((Widget) m_scrolledWindow);
 846     }
 847
 848     if (newScrollBar)
 849     {
 850         XtVaSetValues((Widget) newScrollBar,
 851         XmNvalue, pos,
 852         XmNminimum, 0,
 853         XmNmaximum, range,
 854         XmNsliderSize, thumbVisible,
 855         NULL);
 856     }
 857
 858     SetInternalScrollPos((wxOrientation)orient, pos);
 859
 860     int newW, newH;
 861     GetSize(& newW, & newH);
 862
 863     // Adjusting scrollbars can resize the canvas accidentally
 864     if (newW != oldW || newH != oldH)
 865         SetSize(-1, -1, oldW, oldH);
 866 }
 867
 868 // Does a physical scroll
 869 void wxWindow::ScrollWindow(int dx, int dy, const wxRect *rect)
 870 {
 871     int x, y, w, h;
 872     if (rect)
 873     {
 874         // Use specified rectangle
 875         x = rect->x; y = rect->y; w = rect->width; h = rect->height;
 876     }
 877     else
 878     {
 879         // Use whole client area
 880         x = 0; y = 0;
 881         GetClientSize(& w, & h);
 882     }
 883
 884     int x1 = (dx >= 0) ? x : x - dx;
 885     int y1 = (dy >= 0) ? y : y - dy;
 886     int w1 = w - abs(dx);
 887     int h1 = h - abs(dy);
 888     int x2 = (dx >= 0) ? x + dx : x;
 889     int y2 = (dy >= 0) ? y + dy : y;
 890
 891     wxClientDC dc(this);
 892
 893     dc.SetLogicalFunction (wxCOPY);
 894
 895     Widget widget = (Widget) GetMainWidget();
 896     Window window = XtWindow(widget);
 897     Display* display = XtDisplay(widget);
 898
 899     XCopyArea(display, window, window, (GC) dc.GetGC(),
 900               x1, y1, w1, h1, x2, y2);
 901
 902     dc.SetAutoSetting(TRUE);
 903     wxBrush brush(GetBackgroundColour(), wxSOLID);
 904     dc.SetBrush(brush); // FIXME: needed?
 905
 906     wxWindowList::compatibility_iterator cnode = m_children.GetFirst();
 907     while (cnode)
 908     {
 909         wxWindow *child = cnode->GetData();
 910         int sx = 0;
 911         int sy = 0;
 912         child->GetSize( &sx, &sy );
 913         wxPoint pos( child->GetPosition() );
 914         child->SetSize( pos.x + dx, pos.y + dy, sx, sy, wxSIZE_ALLOW_MINUS_ONE );
 915         cnode = cnode->GetNext();
 916     }
 917
 918     // We'll add rectangles to the list of update rectangles according to which
 919     // bits we've exposed.
 920     wxList updateRects;
 921
 922     if (dx > 0)
 923     {
 924         wxRect *rect = new wxRect;
 925         rect->x = x;
 926         rect->y = y;
 927         rect->width = dx;
 928         rect->height = h;
 929
 930         XFillRectangle(display, window,
 931             (GC) dc.GetGC(), rect->x, rect->y, rect->width, 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     else if (dx < 0)
 941     {
 942         wxRect *rect = new wxRect;
 943
 944         rect->x = x + w + dx;
 945         rect->y = y;
 946         rect->width = -dx;
 947         rect->height = h;
 948
 949         XFillRectangle(display, window,
 950             (GC) dc.GetGC(), rect->x, rect->y, rect->width,
 951             rect->height);
 952
 953         rect->x = rect->x;
 954         rect->y = rect->y;
 955         rect->width = rect->width;
 956         rect->height = rect->height;
 957
 958         updateRects.Append((wxObject*) rect);
 959     }
 960     if (dy > 0)
 961     {
 962         wxRect *rect = new wxRect;
 963
 964         rect->x = x;
 965         rect->y = y;
 966         rect->width = w;
 967         rect->height = dy;
 968
 969         XFillRectangle(display, window,
 970             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
 971
 972         rect->x = rect->x;
 973         rect->y = rect->y;
 974         rect->width = rect->width;
 975         rect->height = rect->height;
 976
 977         updateRects.Append((wxObject*) rect);
 978     }
 979     else if (dy < 0)
 980     {
 981         wxRect *rect = new wxRect;
 982
 983         rect->x = x;
 984         rect->y = y + h + dy;
 985         rect->width = w;
 986         rect->height = -dy;
 987
 988         XFillRectangle(display, window,
 989             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
 990
 991         rect->x = rect->x;
 992         rect->y = rect->y;
 993         rect->width = rect->width;
 994         rect->height = rect->height;
 995
 996         updateRects.Append((wxObject*) rect);
 997     }
 998     dc.SetBrush(wxNullBrush);
 999
1000     // Now send expose events
1001
1002     wxList::compatibility_iterator  node = updateRects.GetFirst();
1003     while (node)
1004     {
1005         wxRect* rect = (wxRect*) node->GetData();
1006         XExposeEvent event;
1007
1008         event.type = Expose;
1009         event.display = display;
1010         event.send_event = True;
1011         event.window = window;
1012
1013         event.x = rect->x;
1014         event.y = rect->y;
1015         event.width = rect->width;
1016         event.height = rect->height;
1017
1018         event.count = 0;
1019
1020         XSendEvent(display, window, False, ExposureMask, (XEvent *)&event);
1021
1022         node = node->GetNext();
1023
1024     }
1025
1026     // Delete the update rects
1027     node = updateRects.GetFirst();
1028     while (node)
1029     {
1030         wxRect* rect = (wxRect*) node->GetData();
1031         delete rect;
1032         node = node->GetNext();
1033     }
1034
1035     XmUpdateDisplay((Widget) GetMainWidget());
1036 }
1037
1038 // ---------------------------------------------------------------------------
1039 // drag and drop
1040 // ---------------------------------------------------------------------------
1041
1042 #if wxUSE_DRAG_AND_DROP
1043
1044 void wxWindow::SetDropTarget(wxDropTarget * WXUNUSED(pDropTarget))
1045 {
1046     // TODO
1047 }
1048
1049 #endif
1050
1051 // Old style file-manager drag&drop
1052 void wxWindow::DragAcceptFiles(bool WXUNUSED(accept))
1053 {
1054     // TODO
1055 }
1056
1057 // ----------------------------------------------------------------------------
1058 // tooltips
1059 // ----------------------------------------------------------------------------
1060
1061 #if wxUSE_TOOLTIPS
1062
1063 void wxWindow::DoSetToolTip(wxToolTip * WXUNUSED(tooltip))
1064 {
1065     // TODO
1066 }
1067
1068 #endif // wxUSE_TOOLTIPS
1069
1070 // ----------------------------------------------------------------------------
1071 // popup menus
1072 // ----------------------------------------------------------------------------
1073
1074 #if wxUSE_MENUS
1075
1076 bool wxWindow::DoPopupMenu(wxMenu *menu, int x, int y)
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 // For implementation purposes - sometimes decorations make the client area
1370 // smaller
1371 wxPoint wxWindow::GetClientAreaOrigin() const
1372 {
1373     return wxPoint(0, 0);
1374 }
1375
1376 void wxWindow::DoMoveWindowIntr(int xx, int yy, int w, int h,
1377                                 int flags)
1378 {
1379     if (m_drawingArea)
1380     {
1381         Widget drawingArea = (Widget) m_drawingArea;
1382         Widget borderOrScrolled = m_borderWidget ?
1383             (Widget) m_borderWidget :
1384             (Widget) m_scrolledWindow;
1385
1386         bool managed = XtIsManaged(borderOrScrolled);
1387         if (managed)
1388             XtUnmanageChild (borderOrScrolled);
1389         XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_ANY, NULL);
1390
1391         if (flags & wxMOVE_X)
1392             XtVaSetValues (borderOrScrolled,
1393                            XmNx, xx,
1394                            NULL);
1395         if (flags & wxMOVE_Y)
1396             XtVaSetValues (borderOrScrolled,
1397                            XmNy, yy,
1398                            NULL);
1399
1400         if (flags & wxMOVE_WIDTH)
1401         {
1402             if (m_borderWidget)
1403             {
1404                 XtVaSetValues ((Widget) m_borderWidget, XmNwidth, w, NULL);
1405                 short thick, margin;
1406                 XtVaGetValues ((Widget) m_borderWidget,
1407                                XmNshadowThickness, &thick,
1408                                XmNmarginWidth, &margin,
1409                                NULL);
1410                 w -= 2 * (thick + margin);
1411             }
1412
1413             if( w < 1 ) w = 1;
1414             XtVaSetValues ((Widget) m_scrolledWindow, XmNwidth, w, NULL);
1415         }
1416
1417         if (flags & wxMOVE_HEIGHT)
1418         {
1419             if (m_borderWidget)
1420             {
1421                 XtVaSetValues ((Widget) m_borderWidget, XmNheight, h, NULL);
1422                 short thick, margin;
1423                 XtVaGetValues ((Widget) m_borderWidget,
1424                                XmNshadowThickness, &thick,
1425                                XmNmarginHeight, &margin,
1426                                NULL);
1427                 h -= 2 * (thick + margin);
1428             }
1429
1430             if( h < 1 ) h = 1;
1431             XtVaSetValues ((Widget) m_scrolledWindow, XmNheight, h, NULL);
1432         }
1433
1434         if (managed)
1435             XtManageChild (borderOrScrolled);
1436         XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_NONE, NULL);
1437     }
1438     else
1439     {
1440         if( w < 1 ) w = 1;
1441         if( h < 1 ) h = 1;
1442
1443         XtVaSetValues((Widget)GetTopWidget(),
1444                       XmNx, xx,
1445                       XmNy, yy,
1446                       XmNwidth, w,
1447                       XmNheight, h,
1448                       NULL);
1449     }
1450 }
1451
1452 void wxWindow::DoMoveWindow(int x, int y, int width, int height)
1453 {
1454     DoMoveWindowIntr (x, y, width, height,
1455                       wxMOVE_X|wxMOVE_Y|wxMOVE_WIDTH|wxMOVE_HEIGHT);
1456 }
1457
1458 // ---------------------------------------------------------------------------
1459 // text metrics
1460 // ---------------------------------------------------------------------------
1461
1462 int wxWindow::GetCharHeight() const
1463 {
1464     wxCHECK_MSG( m_font.Ok(), 0, "valid window font needed" );
1465
1466     WXFontStructPtr pFontStruct = m_font.GetFontStruct(1.0, GetXDisplay());
1467
1468     int direction, ascent, descent;
1469     XCharStruct overall;
1470     XTextExtents ((XFontStruct*) pFontStruct, "x", 1, &direction, &ascent,
1471         &descent, &overall);
1472
1473     //  return (overall.ascent + overall.descent);
1474     return (ascent + descent);
1475 }
1476
1477 int wxWindow::GetCharWidth() const
1478 {
1479     wxCHECK_MSG( m_font.Ok(), 0, "valid window font needed" );
1480
1481     WXFontStructPtr pFontStruct = m_font.GetFontStruct(1.0, GetXDisplay());
1482
1483     int direction, ascent, descent;
1484     XCharStruct overall;
1485     XTextExtents ((XFontStruct*) pFontStruct, "x", 1, &direction, &ascent,
1486         &descent, &overall);
1487
1488     return overall.width;
1489 }
1490
1491 void wxWindow::GetTextExtent(const wxString& string,
1492                              int *x, int *y,
1493                              int *descent, int *externalLeading,
1494                              const wxFont *theFont) const
1495 {
1496     wxFont *fontToUse = (wxFont *)theFont;
1497     if (!fontToUse)
1498         fontToUse = (wxFont *) & m_font;
1499
1500     wxCHECK_RET( fontToUse->Ok(), "valid window font needed" );
1501
1502     WXFontStructPtr pFontStruct = fontToUse->GetFontStruct(1.0, GetXDisplay());
1503
1504     int direction, ascent, descent2;
1505     XCharStruct overall;
1506     int slen = string.Len();
1507
1508 #if 0
1509     if (use16)
1510         XTextExtents16((XFontStruct*) pFontStruct, (XChar2b *) (char*) (const char*) string, slen, &direction,
1511         &ascent, &descent2, &overall);
1512 #endif
1513
1514     XTextExtents((XFontStruct*) pFontStruct, string, slen,
1515                  &direction, &ascent, &descent2, &overall);
1516
1517     if ( x )
1518         *x = (overall.width);
1519     if ( y )
1520         *y = (ascent + descent2);
1521     if (descent)
1522         *descent = descent2;
1523     if (externalLeading)
1524         *externalLeading = 0;
1525
1526 }
1527
1528 // ----------------------------------------------------------------------------
1529 // painting
1530 // ----------------------------------------------------------------------------
1531
1532 void wxWindow::AddUpdateRect(int x, int y, int w, int h)
1533 {
1534     m_updateRegion.Union( x, y, w, h );
1535 }
1536
1537 void wxWindow::Refresh(bool eraseBack, const wxRect *rect)
1538 {
1539     m_needsRefresh = TRUE;
1540     Display *display = XtDisplay((Widget) GetMainWidget());
1541     Window thisWindow = XtWindow((Widget) GetMainWidget());
1542
1543     XExposeEvent dummyEvent;
1544     int width, height;
1545     GetSize(&width, &height);
1546
1547     dummyEvent.type = Expose;
1548     dummyEvent.display = display;
1549     dummyEvent.send_event = True;
1550     dummyEvent.window = thisWindow;
1551     if (rect)
1552     {
1553         dummyEvent.x = rect->x;
1554         dummyEvent.y = rect->y;
1555         dummyEvent.width = rect->width;
1556         dummyEvent.height = rect->height;
1557     }
1558     else
1559     {
1560         dummyEvent.x = 0;
1561         dummyEvent.y = 0;
1562         dummyEvent.width = width;
1563         dummyEvent.height = height;
1564     }
1565     dummyEvent.count = 0;
1566
1567     if (eraseBack)
1568     {
1569         wxClientDC dc(this);
1570         wxBrush backgroundBrush(GetBackgroundColour(), wxSOLID);
1571         dc.SetBackground(backgroundBrush);
1572         if (rect)
1573             dc.Clear(*rect);
1574         else
1575             dc.Clear();
1576     }
1577
1578     XSendEvent(display, thisWindow, False, ExposureMask, (XEvent *)&dummyEvent);
1579 }
1580
1581 void wxWindow::DoPaint()
1582 {
1583     //TODO : make a temporary gc so we can do the XCopyArea below
1584     if (m_backingPixmap && !m_needsRefresh)
1585     {
1586       wxPaintDC dc(this);
1587
1588       GC tempGC = (GC) dc.GetBackingGC();
1589
1590       Widget widget = (Widget) GetMainWidget();
1591
1592       int scrollPosX = 0;
1593       int scrollPosY = 0;
1594
1595       // We have to test whether it's a wxScrolledWindow (hack!) because
1596       // otherwise we don't know how many pixels have been scrolled. We might
1597       // solve this in the future by defining virtual wxWindow functions to get
1598       // the scroll position in pixels. Or, each kind of scrolled window has to
1599       // implement backing stores itself, using generic wxWidgets code.
1600       wxScrolledWindow* scrolledWindow = wxDynamicCast(this, wxScrolledWindow);
1601       if ( scrolledWindow )
1602       {
1603           int x, y;
1604           scrolledWindow->CalcScrolledPosition(0, 0, &x, &y);
1605
1606           scrollPosX = - x;
1607           scrollPosY = - y;
1608       }
1609
1610       // TODO: This could be optimized further by only copying the areas in the
1611       //       current update region.
1612
1613       // Only blit the part visible in the client area. The backing pixmap
1614       // always starts at 0, 0 but we may be looking at only a portion of it.
1615       wxSize clientArea = GetClientSize();
1616       int toBlitX = m_pixmapWidth - scrollPosX;
1617       int toBlitY = m_pixmapHeight - scrollPosY;
1618
1619       // Copy whichever is samller, the amount of pixmap we have to copy,
1620       // or the size of the client area.
1621       toBlitX = wxMin(toBlitX, clientArea.x);
1622       toBlitY = wxMin(toBlitY, clientArea.y);
1623
1624       // Make sure we're not negative
1625       toBlitX = wxMax(0, toBlitX);
1626       toBlitY = wxMax(0, toBlitY);
1627
1628       XCopyArea
1629       (
1630        XtDisplay(widget),
1631        (Pixmap) m_backingPixmap,
1632        XtWindow (widget),
1633        tempGC,
1634        scrollPosX, scrollPosY, // Start at the scroll position
1635        toBlitX, toBlitY,       // How much of the pixmap to copy
1636        0, 0                    // Destination
1637       );
1638     }
1639     else
1640     {
1641         wxWindowDC dc(this);
1642         // Set an erase event first
1643         wxEraseEvent eraseEvent(GetId(), &dc);
1644         eraseEvent.SetEventObject(this);
1645         GetEventHandler()->ProcessEvent(eraseEvent);
1646
1647         wxPaintEvent event(GetId());
1648         event.SetEventObject(this);
1649         GetEventHandler()->ProcessEvent(event);
1650
1651         m_needsRefresh = FALSE;
1652     }
1653 }
1654
1655 // ----------------------------------------------------------------------------
1656 // event handlers
1657 // ----------------------------------------------------------------------------
1658
1659 // Responds to colour changes: passes event on to children.
1660 void wxWindow::OnSysColourChanged(wxSysColourChangedEvent& event)
1661 {
1662     wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1663     while ( node )
1664     {
1665         // Only propagate to non-top-level windows
1666         wxWindow *win = node->GetData();
1667         if ( win->GetParent() )
1668         {
1669             wxSysColourChangedEvent event2;
1670             event.m_eventObject = win;
1671             win->GetEventHandler()->ProcessEvent(event2);
1672         }
1673
1674         node = node->GetNext();
1675     }
1676 }
1677
1678 void wxWindow::OnInternalIdle()
1679 {
1680     // This calls the UI-update mechanism (querying windows for
1681     // menu/toolbar/control state information)
1682     if (wxUpdateUIEvent::CanUpdate(this))
1683         UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
1684 }
1685
1686 // ----------------------------------------------------------------------------
1687 // accelerators
1688 // ----------------------------------------------------------------------------
1689
1690 bool wxWindow::ProcessAccelerator(wxKeyEvent& event)
1691 {
1692 #if wxUSE_ACCEL
1693     if (!m_acceleratorTable.Ok())
1694         return FALSE;
1695
1696     int count = m_acceleratorTable.GetCount();
1697     wxAcceleratorEntry* entries = m_acceleratorTable.GetEntries();
1698     int i;
1699     for (i = 0; i < count; i++)
1700     {
1701         wxAcceleratorEntry* entry = & (entries[i]);
1702         if (entry->MatchesEvent(event))
1703         {
1704             // Bingo, we have a match. Now find a control that matches the
1705             // entry command id.
1706
1707             // Need to go up to the top of the window hierarchy, since it might
1708             // be e.g. a menu item
1709             wxWindow* parent = this;
1710             while ( parent && !parent->IsTopLevel() )
1711                 parent = parent->GetParent();
1712
1713             if (!parent)
1714                 return FALSE;
1715
1716             wxFrame* frame = wxDynamicCast(parent, wxFrame);
1717             if ( frame )
1718             {
1719 #if wxUSE_MENUS
1720                 // Try for a menu command
1721                 if (frame->GetMenuBar())
1722                 {
1723                     wxMenuItem* item = frame->GetMenuBar()->FindItem(entry->GetCommand());
1724                     if (item)
1725                     {
1726                         wxCommandEvent commandEvent(wxEVT_COMMAND_MENU_SELECTED, entry->GetCommand());
1727                         commandEvent.SetEventObject(frame);
1728
1729                         // If ProcessEvent returns TRUE (it was handled), then
1730                         // the calling code will skip the event handling.
1731                         return frame->GetEventHandler()->ProcessEvent(commandEvent);
1732                     }
1733                 }
1734 #endif
1735             }
1736
1737             // Find a child matching the command id
1738             wxWindow* child = parent->FindWindow(entry->GetCommand());
1739
1740             // No such child
1741             if (!child)
1742                 return FALSE;
1743
1744             // Now we process those kinds of windows that we can.
1745             // For now, only buttons.
1746             if ( wxDynamicCast(child, wxButton) )
1747             {
1748                 wxCommandEvent commandEvent (wxEVT_COMMAND_BUTTON_CLICKED, child->GetId());
1749                 commandEvent.SetEventObject(child);
1750                 return child->GetEventHandler()->ProcessEvent(commandEvent);
1751             }
1752
1753             return FALSE;
1754         } // matches event
1755     }// for
1756 #endif
1757
1758     // We didn't match the key event against an accelerator.
1759     return FALSE;
1760 }
1761
1762 // ============================================================================
1763 // Motif-specific stuff from here on
1764 // ============================================================================
1765
1766 // ----------------------------------------------------------------------------
1767 // function which maintain the global hash table mapping Widgets to wxWidgets
1768 // ----------------------------------------------------------------------------
1769
1770 bool wxAddWindowToTable(Widget w, wxWindow *win)
1771 {
1772     wxWindow *oldItem = NULL;
1773     if ((oldItem = (wxWindow *)wxWidgetHashTable->Get ((long) w)))
1774     {
1775         wxLogDebug("Widget table clash: new widget is %ld, %s",
1776                    (long)w, win->GetClassInfo()->GetClassName());
1777         return FALSE;
1778     }
1779
1780     wxWidgetHashTable->Put((long) w, win);
1781
1782     wxLogTrace("widget", "Widget 0x%p <-> window %p (%s)",
1783                (WXWidget)w, win, win->GetClassInfo()->GetClassName());
1784
1785     return TRUE;
1786 }
1787
1788 wxWindow *wxGetWindowFromTable(Widget w)
1789 {
1790     return (wxWindow *)wxWidgetHashTable->Get((long) w);
1791 }
1792
1793 void wxDeleteWindowFromTable(Widget w)
1794 {
1795     wxLogTrace("widget", "Widget 0x%p", (WXWidget)w);
1796
1797     wxWidgetHashTable->Delete((long)w);
1798 }
1799
1800 // ----------------------------------------------------------------------------
1801 // add/remove window from the table
1802 // ----------------------------------------------------------------------------
1803
1804 // Add to hash table, add event handler
1805 bool wxWindow::AttachWidget (wxWindow* WXUNUSED(parent), WXWidget mainWidget,
1806                              WXWidget formWidget, int x, int y, int width, int height)
1807 {
1808     wxAddWindowToTable((Widget) mainWidget, this);
1809     XtAddEventHandler( (Widget) mainWidget,
1810                        ButtonPressMask | ButtonReleaseMask
1811                      | PointerMotionMask,
1812                        False,
1813                        wxPanelItemEventHandler,
1814                        (XtPointer) this);
1815
1816     if (!formWidget)
1817     {
1818         XtTranslations ptr;
1819         XtOverrideTranslations ((Widget) mainWidget,
1820             ptr = XtParseTranslationTable ("<Configure>: resize()"));
1821         XtFree ((char *) ptr);
1822     }
1823
1824     // Some widgets have a parent form widget, e.g. wxRadioBox
1825     if (formWidget)
1826     {
1827         if (!wxAddWindowToTable((Widget) formWidget, this))
1828             return FALSE;
1829
1830         XtTranslations ptr;
1831         XtOverrideTranslations ((Widget) formWidget,
1832             ptr = XtParseTranslationTable ("<Configure>: resize()"));
1833         XtFree ((char *) ptr);
1834     }
1835
1836     if (x == -1)
1837         x = 0;
1838     if (y == -1)
1839         y = 0;
1840     SetSize (x, y, width, height);
1841
1842     return TRUE;
1843 }
1844
1845 // Remove event handler, remove from hash table
1846 bool wxWindow::DetachWidget(WXWidget widget)
1847 {
1848     XtRemoveEventHandler( (Widget) widget,
1849                           ButtonPressMask | ButtonReleaseMask
1850                         | PointerMotionMask,
1851                           False,
1852                           wxPanelItemEventHandler,
1853                           (XtPointer)this);
1854
1855     wxDeleteWindowFromTable((Widget) widget);
1856     return TRUE;
1857 }
1858
1859 // ----------------------------------------------------------------------------
1860 // Motif-specific accessors
1861 // ----------------------------------------------------------------------------
1862
1863 WXWindow wxWindow::GetClientXWindow() const
1864 {
1865     Widget wMain = (Widget)GetClientWidget();
1866     if ( wMain )
1867         return (WXWindow) XtWindow(wMain);
1868     else
1869         return (WXWindow) 0;
1870 }
1871
1872 // Get the underlying X window
1873 WXWindow wxWindow::GetXWindow() const
1874 {
1875     Widget wMain = (Widget)GetMainWidget();
1876     if ( wMain )
1877         return (WXWindow) XtWindow(wMain);
1878     else
1879         return (WXWindow) 0;
1880 }
1881
1882 // Get the underlying X display
1883 WXDisplay *wxWindow::GetXDisplay() const
1884 {
1885     Widget wMain = (Widget)GetMainWidget();
1886     if ( wMain )
1887         return (WXDisplay*) XtDisplay(wMain);
1888     else
1889         return (WXDisplay*) NULL;
1890 }
1891
1892 WXWidget wxWindow::GetMainWidget() const
1893 {
1894     if (m_drawingArea)
1895         return m_drawingArea;
1896     else
1897         return m_mainWidget;
1898 }
1899
1900 WXWidget wxWindow::GetClientWidget() const
1901 {
1902     if (m_drawingArea != (WXWidget) 0)
1903         return m_drawingArea;
1904     else
1905         return GetMainWidget();
1906 }
1907
1908 WXWidget wxWindow::GetTopWidget() const
1909 {
1910     return GetMainWidget();
1911 }
1912
1913 WXWidget wxWindow::GetLabelWidget() const
1914 {
1915     return GetMainWidget();
1916 }
1917
1918 // ----------------------------------------------------------------------------
1919 // Motif callbacks
1920 // ----------------------------------------------------------------------------
1921
1922 // All widgets should have this as their resize proc.
1923 // OnSize sent to wxWindow via client data.
1924 void wxWidgetResizeProc(Widget w, XConfigureEvent *WXUNUSED(event),
1925                         String WXUNUSED(args)[], int *WXUNUSED(num_args))
1926 {
1927     wxWindow *win = wxGetWindowFromTable(w);
1928     if (!win)
1929         return;
1930
1931     if (win->PreResize())
1932     {
1933         int width, height;
1934         win->GetSize(&width, &height);
1935         wxSizeEvent sizeEvent(wxSize(width, height), win->GetId());
1936         sizeEvent.SetEventObject(win);
1937         win->GetEventHandler()->ProcessEvent(sizeEvent);
1938     }
1939 }
1940
1941 static void wxCanvasRepaintProc(Widget drawingArea,
1942                                 XtPointer clientData,
1943                                 XmDrawingAreaCallbackStruct * cbs)
1944 {
1945     if (!wxGetWindowFromTable(drawingArea))
1946         return;
1947
1948     XEvent * event = cbs->event;
1949     wxWindow * win = (wxWindow *) clientData;
1950
1951     switch (event->type)
1952     {
1953     case Expose:
1954         {
1955             win->AddUpdateRect(event->xexpose.x, event->xexpose.y,
1956                                event->xexpose.width, event->xexpose.height);
1957
1958             if (event -> xexpose.count == 0)
1959             {
1960                 win->DoPaint();
1961             }
1962             break;
1963         }
1964     }
1965 }
1966
1967 // Unable to deal with Enter/Leave without a separate EventHandler (Motif 1.1.4)
1968 static void wxCanvasEnterLeave(Widget drawingArea,
1969                                XtPointer WXUNUSED(clientData),
1970                                XCrossingEvent * event)
1971 {
1972     XmDrawingAreaCallbackStruct cbs;
1973     XEvent ev;
1974
1975     ((XCrossingEvent &) ev) = *event;
1976
1977     cbs.reason = XmCR_INPUT;
1978     cbs.event = &ev;
1979
1980     wxCanvasInputEvent(drawingArea, (XtPointer) NULL, &cbs);
1981 }
1982
1983 // Fix to make it work under Motif 1.0 (!)
1984 static void wxCanvasMotionEvent (Widget WXUNUSED(drawingArea),
1985                                  XButtonEvent *WXUNUSED(event))
1986 {
1987 #if XmVersion <= 1000
1988     XmDrawingAreaCallbackStruct cbs;
1989     XEvent ev;
1990
1991     ev = *((XEvent *) event);
1992     cbs.reason = XmCR_INPUT;
1993     cbs.event = &ev;
1994
1995     wxCanvasInputEvent (drawingArea, (XtPointer) NULL, &cbs);
1996 #endif // XmVersion <= 1000
1997 }
1998
1999 static void wxCanvasInputEvent(Widget drawingArea,
2000                                XtPointer WXUNUSED(data),
2001                                XmDrawingAreaCallbackStruct * cbs)
2002 {
2003     wxWindow *canvas = wxGetWindowFromTable(drawingArea);
2004     XEvent* xevent = cbs->event;
2005
2006     if (canvas==NULL)
2007         return;
2008
2009     if (cbs->reason != XmCR_INPUT)
2010         return;
2011
2012     switch (xevent->xany.type)
2013     {
2014     case EnterNotify:
2015     case LeaveNotify:
2016     case ButtonPress:
2017     case ButtonRelease:
2018     case MotionNotify:
2019         {
2020             wxMouseEvent wxevent(0);
2021             if (wxTranslateMouseEvent(wxevent, canvas, drawingArea, xevent))
2022             {
2023                 canvas->GetEventHandler()->ProcessEvent(wxevent);
2024             }
2025             break;
2026         }
2027     case KeyPress:
2028         {
2029             wxKeyEvent event (wxEVT_CHAR);
2030             if (wxTranslateKeyEvent (event, canvas, (Widget) 0, xevent))
2031             {
2032                 // Implement wxFrame::OnCharHook by checking ancestor.
2033                 wxWindow *parent = canvas;
2034                 while (parent && !parent->IsTopLevel())
2035                     parent = parent->GetParent();
2036
2037                 if (parent)
2038                 {
2039                     event.SetEventType(wxEVT_CHAR_HOOK);
2040                     if (parent->GetEventHandler()->ProcessEvent(event))
2041                         return;
2042                 }
2043
2044                 // For simplicity, OnKeyDown is the same as OnChar
2045                 // TODO: filter modifier key presses from OnChar
2046                 event.SetEventType(wxEVT_KEY_DOWN);
2047
2048                 // Only process OnChar if OnKeyDown didn't swallow it
2049                 if (!canvas->GetEventHandler()->ProcessEvent (event))
2050                 {
2051                     event.SetEventType(wxEVT_CHAR);
2052                     canvas->GetEventHandler()->ProcessEvent (event);
2053                 }
2054             }
2055             break;
2056         }
2057     case KeyRelease:
2058         {
2059             wxKeyEvent event (wxEVT_KEY_UP);
2060             if (wxTranslateKeyEvent (event, canvas, (Widget) 0, xevent))
2061             {
2062                 canvas->GetEventHandler()->ProcessEvent (event);
2063             }
2064             break;
2065         }
2066     case FocusIn:
2067         {
2068             if (xevent->xfocus.detail != NotifyPointer)
2069             {
2070                 wxFocusEvent event(wxEVT_SET_FOCUS, canvas->GetId());
2071                 event.SetEventObject(canvas);
2072                 canvas->GetEventHandler()->ProcessEvent(event);
2073             }
2074             break;
2075         }
2076     case FocusOut:
2077         {
2078             if (xevent->xfocus.detail != NotifyPointer)
2079             {
2080                 wxFocusEvent event(wxEVT_KILL_FOCUS, canvas->GetId());
2081                 event.SetEventObject(canvas);
2082                 canvas->GetEventHandler()->ProcessEvent(event);
2083             }
2084             break;
2085         }
2086     default:
2087         break;
2088     }
2089 }
2090
2091 static void wxPanelItemEventHandler(Widget    wid,
2092                                     XtPointer WXUNUSED(client_data),
2093                                     XEvent*   event,
2094                                     Boolean  *continueToDispatch)
2095 {
2096     // Widget can be a label or the actual widget.
2097
2098     wxWindow *window = wxGetWindowFromTable(wid);
2099     if (window)
2100     {
2101         wxMouseEvent wxevent(0);
2102         if (wxTranslateMouseEvent(wxevent, window, wid, event))
2103         {
2104             window->GetEventHandler()->ProcessEvent(wxevent);
2105         }
2106     }
2107
2108     // TODO: probably the key to allowing default behaviour to happen. Say we
2109     // set a m_doDefault flag to FALSE at the start of this function. Then in
2110     // e.g. wxWindow::OnMouseEvent we can call Default() which sets this flag to
2111     // TRUE, indicating that default processing can happen. Thus, behaviour can
2112     // appear to be overridden just by adding an event handler and not calling
2113     // wxWindow::OnWhatever. ALSO, maybe we can use this instead of the current
2114     // way of handling drawing area events, to simplify things.
2115     *continueToDispatch = True;
2116 }
2117
2118 static void wxScrollBarCallback(Widget scrollbar,
2119                                 XtPointer clientData,
2120                                 XmScrollBarCallbackStruct *cbs)
2121 {
2122     wxWindow *win = wxGetWindowFromTable(scrollbar);
2123     wxOrientation orientation = (wxOrientation)(int)clientData;
2124
2125     wxEventType eventType = wxEVT_NULL;
2126     switch (cbs->reason)
2127     {
2128     case XmCR_INCREMENT:
2129         {
2130             eventType = wxEVT_SCROLLWIN_LINEDOWN;
2131             break;
2132         }
2133     case XmCR_DECREMENT:
2134         {
2135             eventType = wxEVT_SCROLLWIN_LINEUP;
2136             break;
2137         }
2138     case XmCR_DRAG:
2139         {
2140             eventType = wxEVT_SCROLLWIN_THUMBTRACK;
2141             break;
2142         }
2143     case XmCR_VALUE_CHANGED:
2144         {
2145             eventType = wxEVT_SCROLLWIN_THUMBRELEASE;
2146             break;
2147         }
2148     case XmCR_PAGE_INCREMENT:
2149         {
2150             eventType = wxEVT_SCROLLWIN_PAGEDOWN;
2151             break;
2152         }
2153     case XmCR_PAGE_DECREMENT:
2154         {
2155             eventType = wxEVT_SCROLLWIN_PAGEUP;
2156             break;
2157         }
2158     case XmCR_TO_TOP:
2159         {
2160             eventType = wxEVT_SCROLLWIN_TOP;
2161             break;
2162         }
2163     case XmCR_TO_BOTTOM:
2164         {
2165             eventType = wxEVT_SCROLLWIN_BOTTOM;
2166             break;
2167         }
2168     default:
2169         {
2170             // Should never get here
2171             wxFAIL_MSG("Unknown scroll event.");
2172             break;
2173         }
2174     }
2175
2176     wxScrollWinEvent event(eventType,
2177                            cbs->value,
2178                            orientation);
2179     event.SetEventObject( win );
2180     win->GetEventHandler()->ProcessEvent(event);
2181 }
2182
2183 // For repainting arbitrary windows
2184 void wxUniversalRepaintProc(Widget w, XtPointer WXUNUSED(c_data), XEvent *event, char *)
2185 {
2186     Window window;
2187     Display *display;
2188
2189     wxWindow* win = wxGetWindowFromTable(w);
2190     if (!win)
2191         return;
2192
2193     switch(event -> type)
2194     {
2195     case Expose:
2196         {
2197             window = (Window) win -> GetXWindow();
2198             display = (Display *) win -> GetXDisplay();
2199
2200             win->AddUpdateRect(event->xexpose.x, event->xexpose.y,
2201                                event->xexpose.width, event->xexpose.height);
2202
2203             if (event -> xexpose.count == 0)
2204             {
2205                 win->DoPaint();
2206             }
2207
2208             break;
2209         }
2210     }
2211 }
2212
2213 // ----------------------------------------------------------------------------
2214 // TranslateXXXEvent() functions
2215 // ----------------------------------------------------------------------------
2216
2217 bool wxTranslateMouseEvent(wxMouseEvent& wxevent, wxWindow *win,
2218                            Widget widget, const XEvent *xevent)
2219 {
2220     switch (xevent->xany.type)
2221     {
2222         case EnterNotify:
2223         case LeaveNotify:
2224 #if 0
2225             fprintf(stderr, "Widget 0x%p <-> window %p (%s), %s\n",
2226                     (WXWidget)widget, win, win->GetClassInfo()->GetClassName(),
2227                     (xevent->xany.type == EnterNotify ? "ENTER" : "LEAVE"));
2228 #endif
2229         case ButtonPress:
2230         case ButtonRelease:
2231         case MotionNotify:
2232         {
2233             int eventx = xevent->xbutton.x, eventy = xevent->xbutton.y;
2234
2235             wxEventType eventType = wxEVT_NULL;
2236
2237             if (xevent->xany.type == LeaveNotify)
2238             {
2239                 eventType = wxEVT_LEAVE_WINDOW;
2240             }
2241             if (xevent->xany.type == EnterNotify)
2242             {
2243                 eventType = wxEVT_ENTER_WINDOW;
2244             }
2245             else if (xevent->xany.type == MotionNotify)
2246             {
2247                 eventType = wxEVT_MOTION;
2248
2249                 if (xevent->xmotion.is_hint == NotifyHint)
2250                 {
2251                     Window root, child;
2252                     int x_root, y_root;
2253                     unsigned int state;
2254                     Display *dpy = XtDisplay (widget);
2255
2256                     XQueryPointer (dpy, XtWindow (widget),
2257                         &root, &child,
2258                         &x_root, &y_root, &eventx, &eventy, &state);
2259                 }
2260             }
2261             else if (xevent->xany.type == ButtonPress)
2262             {
2263                 wxevent.SetTimestamp(xevent->xbutton.time);
2264                 int button = 0;
2265                 if (xevent->xbutton.button == Button1)
2266                 {
2267                     eventType = wxEVT_LEFT_DOWN;
2268                     button = 1;
2269                 }
2270                 else if (xevent->xbutton.button == Button2)
2271                 {
2272                     eventType = wxEVT_MIDDLE_DOWN;
2273                     button = 2;
2274                 }
2275                 else if (xevent->xbutton.button == Button3)
2276                 {
2277                     eventType = wxEVT_RIGHT_DOWN;
2278                     button = 3;
2279                 }
2280
2281                 // check for a double click
2282                 //
2283                 long dclickTime = XtGetMultiClickTime(xevent->xany.display);
2284                 long ts = wxevent.GetTimestamp();
2285
2286                 int buttonLast = win->GetLastClickedButton();
2287                 long lastTS = win->GetLastClickTime();
2288                 if ( buttonLast && buttonLast == button &&
2289                      (ts - lastTS) < dclickTime )
2290                 {
2291                     // I have a dclick
2292                     win->SetLastClick(0, ts);
2293                     if ( eventType == wxEVT_LEFT_DOWN )
2294                         eventType = wxEVT_LEFT_DCLICK;
2295                     else if ( eventType == wxEVT_MIDDLE_DOWN )
2296                         eventType = wxEVT_MIDDLE_DCLICK;
2297                     else if ( eventType == wxEVT_RIGHT_DOWN )
2298                         eventType = wxEVT_RIGHT_DCLICK;
2299                 }
2300                 else
2301                 {
2302                     // not fast enough or different button
2303                     win->SetLastClick(button, ts);
2304                 }
2305             }
2306             else if (xevent->xany.type == ButtonRelease)
2307             {
2308                 if (xevent->xbutton.button == Button1)
2309                 {
2310                     eventType = wxEVT_LEFT_UP;
2311                 }
2312                 else if (xevent->xbutton.button == Button2)
2313                 {
2314                     eventType = wxEVT_MIDDLE_UP;
2315                 }
2316                 else if (xevent->xbutton.button == Button3)
2317                 {
2318                     eventType = wxEVT_RIGHT_UP;
2319                 }
2320                 else
2321                     return FALSE;
2322             }
2323             else
2324             {
2325                 return FALSE;
2326             }
2327
2328             wxevent.SetEventType(eventType);
2329
2330             Position x1, y1;
2331             XtVaGetValues(widget, XmNx, &x1, XmNy, &y1, NULL);
2332
2333             int x2, y2;
2334             win->GetPosition(&x2, &y2);
2335
2336             // The button x/y must be translated to wxWidgets
2337             // window space - the widget might be a label or button,
2338             // within a form.
2339             int dx = 0;
2340             int dy = 0;
2341             if (widget != (Widget)win->GetMainWidget())
2342             {
2343                 dx = x1;
2344                 dy = y1;
2345             }
2346
2347             wxevent.m_x = eventx + dx;
2348             wxevent.m_y = eventy + dy;
2349
2350             wxevent.m_leftDown = ((eventType == wxEVT_LEFT_DOWN)
2351                 || (event_left_is_down (xevent)
2352                 && (eventType != wxEVT_LEFT_UP)));
2353             wxevent.m_middleDown = ((eventType == wxEVT_MIDDLE_DOWN)
2354                 || (event_middle_is_down (xevent)
2355                 && (eventType != wxEVT_MIDDLE_UP)));
2356             wxevent.m_rightDown = ((eventType == wxEVT_RIGHT_DOWN)
2357                 || (event_right_is_down (xevent)
2358                 && (eventType != wxEVT_RIGHT_UP)));
2359
2360             wxevent.m_shiftDown = xevent->xbutton.state & ShiftMask;
2361             wxevent.m_controlDown = xevent->xbutton.state & ControlMask;
2362             wxevent.m_altDown = xevent->xbutton.state & Mod3Mask;
2363             wxevent.m_metaDown = xevent->xbutton.state & Mod1Mask;
2364
2365             wxevent.SetId(win->GetId());
2366             wxevent.SetEventObject(win);
2367
2368             return TRUE;
2369         }
2370     }
2371     return FALSE;
2372 }
2373
2374 bool wxTranslateKeyEvent(wxKeyEvent& wxevent, wxWindow *win,
2375                          Widget WXUNUSED(widget), const XEvent *xevent)
2376 {
2377     switch (xevent->xany.type)
2378     {
2379     case KeyPress:
2380     case KeyRelease:
2381         {
2382             char buf[20];
2383
2384             KeySym keySym;
2385             (void) XLookupString((XKeyEvent *)xevent, buf, 20, &keySym, NULL);
2386             int id = wxCharCodeXToWX (keySym);
2387             // id may be WXK_xxx code - these are outside ASCII range, so we
2388             // can't just use toupper() on id
2389             if (id >= 'a' && id <= 'z')
2390                 id = toupper(id);
2391
2392             if (xevent->xkey.state & ShiftMask)
2393                 wxevent.m_shiftDown = TRUE;
2394             if (xevent->xkey.state & ControlMask)
2395                 wxevent.m_controlDown = TRUE;
2396             if (xevent->xkey.state & Mod3Mask)
2397                 wxevent.m_altDown = TRUE;
2398             if (xevent->xkey.state & Mod1Mask)
2399                 wxevent.m_metaDown = TRUE;
2400             wxevent.SetEventObject(win);
2401             wxevent.m_keyCode = id;
2402             wxevent.SetTimestamp(xevent->xkey.time);
2403
2404             wxevent.m_x = xevent->xbutton.x;
2405             wxevent.m_y = xevent->xbutton.y;
2406
2407             if (id > -1)
2408                 return TRUE;
2409             else
2410                 return FALSE;
2411             break;
2412         }
2413     default:
2414         break;
2415     }
2416     return FALSE;
2417 }
2418
2419 // ----------------------------------------------------------------------------
2420 // Colour stuff
2421 // ----------------------------------------------------------------------------
2422
2423 #define YAllocColor XAllocColor
2424 XColor g_itemColors[5];
2425 int wxComputeColours (Display *display, wxColour * back, wxColour * fore)
2426 {
2427     int result;
2428     static XmColorProc colorProc;
2429
2430     result = wxNO_COLORS;
2431
2432     if (back)
2433     {
2434         g_itemColors[0].red = (((long) back->Red ()) << 8);
2435         g_itemColors[0].green = (((long) back->Green ()) << 8);
2436         g_itemColors[0].blue = (((long) back->Blue ()) << 8);
2437         g_itemColors[0].flags = DoRed | DoGreen | DoBlue;
2438         if (colorProc == (XmColorProc) NULL)
2439         {
2440             // Get a ptr to the actual function
2441             colorProc = XmSetColorCalculation ((XmColorProc) NULL);
2442             // And set it back to motif.
2443             XmSetColorCalculation (colorProc);
2444         }
2445         (*colorProc) (&g_itemColors[wxBACK_INDEX],
2446             &g_itemColors[wxFORE_INDEX],
2447             &g_itemColors[wxSELE_INDEX],
2448             &g_itemColors[wxTOPS_INDEX],
2449             &g_itemColors[wxBOTS_INDEX]);
2450         result = wxBACK_COLORS;
2451     }
2452     if (fore)
2453     {
2454         g_itemColors[wxFORE_INDEX].red = (((long) fore->Red ()) << 8);
2455         g_itemColors[wxFORE_INDEX].green = (((long) fore->Green ()) << 8);
2456         g_itemColors[wxFORE_INDEX].blue = (((long) fore->Blue ()) << 8);
2457         g_itemColors[wxFORE_INDEX].flags = DoRed | DoGreen | DoBlue;
2458         if (result == wxNO_COLORS)
2459             result = wxFORE_COLORS;
2460     }
2461
2462     Display *dpy = display;
2463     Colormap cmap = (Colormap) wxTheApp->GetMainColormap((WXDisplay*) dpy);
2464
2465     if (back)
2466     {
2467         /* 5 Colours to allocate */
2468         for (int i = 0; i < 5; i++)
2469             if (!YAllocColor (dpy, cmap, &g_itemColors[i]))
2470                 result = wxNO_COLORS;
2471     }
2472     else if (fore)
2473     {
2474         /* Only 1 colour to allocate */
2475         if (!YAllocColor (dpy, cmap, &g_itemColors[wxFORE_INDEX]))
2476             result = wxNO_COLORS;
2477     }
2478
2479     return result;
2480 }
2481
2482 // Changes the foreground and background colours to be derived from the current
2483 // background colour. To change the foreground colour, you must call
2484 // SetForegroundColour explicitly.
2485 void wxWindow::ChangeBackgroundColour()
2486 {
2487     WXWidget mainWidget = GetMainWidget();
2488     if ( mainWidget )
2489         wxDoChangeBackgroundColour(mainWidget, m_backgroundColour);
2490 }
2491
2492 void wxWindow::ChangeForegroundColour()
2493 {
2494     WXWidget mainWidget = GetMainWidget();
2495     if ( mainWidget )
2496         wxDoChangeForegroundColour(mainWidget, m_foregroundColour);
2497     if ( m_scrolledWindow && mainWidget != m_scrolledWindow )
2498         wxDoChangeForegroundColour(m_scrolledWindow, m_foregroundColour);
2499 }
2500
2501 bool wxWindow::SetBackgroundColour(const wxColour& col)
2502 {
2503     if ( !wxWindowBase::SetBackgroundColour(col) )
2504         return FALSE;
2505
2506     ChangeBackgroundColour();
2507
2508     return TRUE;
2509 }
2510
2511 bool wxWindow::SetForegroundColour(const wxColour& col)
2512 {
2513     if ( !wxWindowBase::SetForegroundColour(col) )
2514         return FALSE;
2515
2516     ChangeForegroundColour();
2517
2518     return TRUE;
2519 }
2520
2521 void wxWindow::ChangeFont(bool keepOriginalSize)
2522 {
2523     // Note that this causes the widget to be resized back
2524     // to its original size! We therefore have to set the size
2525     // back again. TODO: a better way in Motif?
2526     Widget w = (Widget) GetLabelWidget(); // Usually the main widget
2527     if (w && m_font.Ok())
2528     {
2529         int width, height, width1, height1;
2530         GetSize(& width, & height);
2531
2532         wxDoChangeFont( GetLabelWidget(), m_font );
2533
2534         GetSize(& width1, & height1);
2535         if (keepOriginalSize && (width != width1 || height != height1))
2536         {
2537             SetSize(-1, -1, width, height);
2538         }
2539     }
2540 }
2541
2542 // ----------------------------------------------------------------------------
2543 // global functions
2544 // ----------------------------------------------------------------------------
2545
2546 wxWindow *wxGetActiveWindow()
2547 {
2548     // TODO
2549     wxFAIL_MSG("Not implemented");
2550     return NULL;
2551 }
2552
2553 /* static */
2554 wxWindow *wxWindowBase::GetCapture()
2555 {
2556     return (wxWindow *)g_captureWindow;
2557 }
2558
2559
2560 // Find the wxWindow at the current mouse position, returning the mouse
2561 // position.
2562 wxWindow* wxFindWindowAtPointer(wxPoint& pt)
2563 {
2564     return wxFindWindowAtPoint(wxGetMousePosition());
2565 }
2566
2567 // Get the current mouse position.
2568 wxPoint wxGetMousePosition()
2569 {
2570     Display *display = wxGlobalDisplay();
2571     Window rootWindow = RootWindowOfScreen (DefaultScreenOfDisplay(display));
2572     Window rootReturn, childReturn;
2573     int rootX, rootY, winX, winY;
2574     unsigned int maskReturn;
2575
2576     XQueryPointer (display,
2577                    rootWindow,
2578                    &rootReturn,
2579                    &childReturn,
2580                    &rootX, &rootY, &winX, &winY, &maskReturn);
2581     return wxPoint(rootX, rootY);
2582 }
2583
2584
2585 // ----------------------------------------------------------------------------
2586 // wxNoOptimize: switch off size optimization
2587 // ----------------------------------------------------------------------------
2588
2589 int wxNoOptimize::ms_count = 0;
2590