src/motif/window.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        windows.cpp
   3 // Purpose:     wxWindow
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "window.h"
  22 #endif
  23
  24 #ifdef __VMS
  25 #define XtDisplay XTDISPLAY
  26 #define XtWindow XTWINDOW
  27 #define XtScreen XTSCREEN
  28 #endif
  29
  30 #include "wx/setup.h"
  31 #include "wx/menu.h"
  32 #include "wx/dc.h"
  33 #include "wx/dcclient.h"
  34 #include "wx/utils.h"
  35 #include "wx/app.h"
  36 #include "wx/layout.h"
  37 #include "wx/button.h"
  38 #include "wx/settings.h"
  39 #include "wx/frame.h"
  40 #include "wx/scrolwin.h"
  41 #include "wx/module.h"
  42 #include "wx/menuitem.h"
  43 #include "wx/log.h"
  44 #include "wx/evtloop.h"
  45 #include "wx/hash.h"
  46
  47 #if  wxUSE_DRAG_AND_DROP
  48     #include "wx/dnd.h"
  49 #endif
  50
  51 // DoSetSizeIntr and DoMoveWindowIntr
  52 // PROBLEM:
  53 // under Motif composite controls (such as wxCalendarCtrl or generic wxSpinCtrl
  54 // did nott work and/or segfaulted because
  55 // 1) wxWindow::Create calls SetSize,
  56 //    which results in a call to DoSetSize much earlier than in the other ports
  57 // 2) if wxWindow::Create is called (wxControl::Create calls it)
  58 //    then DoSetSize is never called, causing layout problems in composite
  59 //    controls
  60 //
  61 // SOLUTION:
  62 // 1) don't call SetSize, DoSetSize, DoMoveWindow, DoGetPosition,
  63 //    DoSetPosition directly or indirectly from wxWindow::Create
  64 // 2) call DoMoveWindow from DoSetSize, allowing controls to override it
  65
  66 #ifdef __VMS__
  67 #pragma message disable nosimpint
  68 #endif
  69 #include <Xm/Xm.h>
  70
  71 #include <Xm/DrawingA.h>
  72 #include <Xm/ScrolledW.h>
  73 #include <Xm/ScrollBar.h>
  74 #include <Xm/Frame.h>
  75 #include <Xm/Label.h>
  76 #include <Xm/RowColumn.h>           // for XmMenuPosition
  77 #ifdef __VMS__
  78 #pragma message enable nosimpint
  79 #endif
  80
  81 #include "wx/motif/private.h"
  82
  83 #include <string.h>
  84
  85 // ----------------------------------------------------------------------------
  86 // constants
  87 // ----------------------------------------------------------------------------
  88
  89 static const int SCROLL_MARGIN = 4;
  90
  91 // ----------------------------------------------------------------------------
  92 // global variables for this module
  93 // ----------------------------------------------------------------------------
  94
  95 extern wxHashTable *wxWidgetHashTable;
  96 static wxWindow* g_captureWindow = NULL;
  97
  98
  99 // ----------------------------------------------------------------------------
 100 // private functions
 101 // ----------------------------------------------------------------------------
 102
 103 static void wxCanvasRepaintProc(Widget, XtPointer, XmDrawingAreaCallbackStruct * cbs);
 104 static void wxCanvasInputEvent(Widget drawingArea, XtPointer data, XmDrawingAreaCallbackStruct * cbs);
 105 static void wxCanvasMotionEvent(Widget, XButtonEvent * event);
 106 static void wxCanvasEnterLeave(Widget drawingArea, XtPointer clientData, XCrossingEvent * event);
 107 static void wxScrollBarCallback(Widget widget, XtPointer clientData,
 108                                 XmScrollBarCallbackStruct *cbs);
 109 static void wxPanelItemEventHandler(Widget    wid,
 110                                     XtPointer client_data,
 111                                     XEvent*   event,
 112                                     Boolean  *continueToDispatch);
 113
 114 // unused for now
 115 #if 0
 116
 117 // Helper function for 16-bit fonts
 118 static int str16len(const char *s)
 119 {
 120     int count = 0;
 121
 122     while (s[0] && s[1]) {
 123         count++;
 124         s += 2;
 125     }
 126
 127     return count;
 128 }
 129
 130 #endif // 0
 131
 132 // ----------------------------------------------------------------------------
 133 // macros
 134 // ----------------------------------------------------------------------------
 135
 136 #define event_left_is_down(x) ((x)->xbutton.state & Button1Mask)
 137 #define event_middle_is_down(x) ((x)->xbutton.state & Button2Mask)
 138 #define event_right_is_down(x) ((x)->xbutton.state & Button3Mask)
 139
 140 // ----------------------------------------------------------------------------
 141 // event tables
 142 // ----------------------------------------------------------------------------
 143
 144     IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxWindowBase)
 145
 146     BEGIN_EVENT_TABLE(wxWindow, wxWindowBase)
 147         EVT_SYS_COLOUR_CHANGED(wxWindow::OnSysColourChanged)
 148         EVT_IDLE(wxWindow::OnIdle)
 149     END_EVENT_TABLE()
 150
 151 // ============================================================================
 152 // implementation
 153 // ============================================================================
 154
 155 // ----------------------------------------------------------------------------
 156 // helper functions
 157 // ----------------------------------------------------------------------------
 158
 159 void wxWindow::UnmanageAndDestroy(WXWidget widget)
 160 {
 161     Widget w = (Widget)widget;
 162     if ( w )
 163     {
 164         XtUnmanageChild(w);
 165         XtDestroyWidget(w);
 166     }
 167 }
 168
 169 bool wxWindow::MapOrUnmap(WXWidget widget, bool domap)
 170 {
 171     Widget w = (Widget)widget;
 172     if ( !w )
 173         return FALSE;
 174
 175     //   Rationale: a lot of common operations (including but not
 176     // limited to moving, resizing and appending items to a listbox)
 177     // unmamange the widget, do their work, then manage it again.
 178     // This means that, for example adding an item to a listbox will show it,
 179     // or that most controls are shown every time they are moved or resized!
 180     XtSetMappedWhenManaged( w, domap );
 181
 182     // if the widget is not unmanaged, it still intercepts
 183     // mouse events, even if it is not mapped (and hence invisible)
 184     if ( domap )
 185     {
 186         XtManageChild(w);
 187         // XtMapWidget(w);
 188     }
 189     else
 190     {
 191         XtUnmanageChild(w);
 192         // XtUnmapWidget(w);
 193     }
 194
 195     return TRUE;
 196 }
 197
 198 // ----------------------------------------------------------------------------
 199 // constructors
 200 // ----------------------------------------------------------------------------
 201
 202 void wxWindow::Init()
 203 {
 204     // generic initializations first
 205     InitBase();
 206
 207     // Motif-specific
 208     m_needsRefresh = TRUE;
 209     m_mainWidget = (WXWidget) 0;
 210
 211     m_winCaptured = FALSE;
 212
 213     m_isShown = TRUE;
 214     m_isBeingDeleted = FALSE;
 215
 216     m_hScrollBar =
 217     m_vScrollBar =
 218     m_borderWidget =
 219     m_scrolledWindow =
 220     m_drawingArea = (WXWidget) 0;
 221
 222     m_scrollPosX =
 223     m_scrollPosY = 0;
 224
 225     m_backingPixmap = (WXPixmap) 0;
 226     m_pixmapWidth =
 227     m_pixmapHeight = 0;
 228
 229     m_pixmapOffsetX =
 230     m_pixmapOffsetY = 0;
 231
 232     m_lastTS = 0;
 233     m_lastButton = 0;
 234 }
 235
 236 // real construction (Init() must have been called before!)
 237 bool wxWindow::Create(wxWindow *parent, wxWindowID id,
 238                       const wxPoint& pos,
 239                       const wxSize& size,
 240                       long style,
 241                       const wxString& name)
 242 {
 243     wxCHECK_MSG( parent, FALSE, "can't create wxWindow without parent" );
 244
 245     CreateBase(parent, id, pos, size, style, wxDefaultValidator, name);
 246
 247     parent->AddChild(this);
 248
 249     m_backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 250     m_foregroundColour = *wxBLACK;
 251
 252     //// TODO: we should probably optimize by only creating a
 253     //// a drawing area if we have one or more scrollbars (wxVSCROLL/wxHSCROLL).
 254     //// But for now, let's simplify things by always creating the
 255     //// drawing area, since otherwise the translations are different.
 256
 257     // New translations for getting mouse motion feedback
 258     static const String translations =
 259 "<Btn1Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 260 <Btn2Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 261 <Btn3Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 262 <BtnMotion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 263 <Btn1Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 264 <Btn2Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 265 <Btn3Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 266 <Btn1Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 267 <Btn2Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 268 <Btn3Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 269 <Motion>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 270 <EnterWindow>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 271 <LeaveWindow>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 272 <Key>: DrawingAreaInput()";
 273
 274     XtActionsRec actions[1];
 275     actions[0].string = "wxCanvasMotionEvent";
 276     actions[0].proc = (XtActionProc) wxCanvasMotionEvent;
 277     XtAppAddActions ((XtAppContext) wxTheApp->GetAppContext(), actions, 1);
 278
 279     Widget parentWidget = (Widget) parent->GetClientWidget();
 280     m_borderWidget = wxCreateBorderWidget( (WXWidget)parentWidget, style );
 281
 282     m_scrolledWindow = (WXWidget)XtVaCreateManagedWidget
 283                                  (
 284                                   "scrolledWindow",
 285                                   xmScrolledWindowWidgetClass,
 286                                   m_borderWidget ? (Widget) m_borderWidget
 287                                                  : parentWidget,
 288                                   XmNresizePolicy, XmRESIZE_NONE,
 289                                   XmNspacing, 0,
 290                                   XmNscrollingPolicy, XmAPPLICATION_DEFINED,
 291                                   //XmNscrollBarDisplayPolicy, XmAS_NEEDED,
 292                                   NULL
 293                                  );
 294
 295     XtTranslations ptr = XtParseTranslationTable(translations);
 296     m_drawingArea = (WXWidget)XtVaCreateWidget
 297                               (
 298                                name,
 299                                xmDrawingAreaWidgetClass, (Widget) m_scrolledWindow,
 300                                XmNunitType, XmPIXELS,
 301                                // XmNresizePolicy, XmRESIZE_ANY,
 302                                XmNresizePolicy, XmRESIZE_NONE,
 303                                XmNmarginHeight, 0,
 304                                XmNmarginWidth, 0,
 305                                XmNtranslations, ptr,
 306                                NULL
 307                               );
 308     XtFree((char *) ptr);
 309
 310 #if 0
 311     if (GetWindowStyleFlag() & wxOVERRIDE_KEY_TRANSLATIONS)
 312     {
 313         ptr = XtParseTranslationTable ("<Key>: DrawingAreaInput()");
 314         XtOverrideTranslations ((Widget) m_drawingArea, ptr);
 315         XtFree ((char *) ptr);
 316     }
 317 #endif // 0
 318
 319     wxAddWindowToTable((Widget) m_drawingArea, this);
 320     wxAddWindowToTable((Widget) m_scrolledWindow, this);
 321
 322     // This order is very important in Motif 1.2.1
 323     XtRealizeWidget ((Widget) m_scrolledWindow);
 324     XtRealizeWidget ((Widget) m_drawingArea);
 325     XtManageChild ((Widget) m_drawingArea);
 326
 327     ptr = XtParseTranslationTable("<Configure>: resize()");
 328     XtOverrideTranslations((Widget) m_drawingArea, ptr);
 329     XtFree ((char *) ptr);
 330
 331     XtAddCallback ((Widget) m_drawingArea, XmNexposeCallback, (XtCallbackProc) wxCanvasRepaintProc, (XtPointer) this);
 332     XtAddCallback ((Widget) m_drawingArea, XmNinputCallback, (XtCallbackProc) wxCanvasInputEvent, (XtPointer) this);
 333
 334     XtAddEventHandler(
 335                       (Widget)m_drawingArea,
 336                        PointerMotionHintMask | EnterWindowMask |
 337                        LeaveWindowMask | FocusChangeMask,
 338                        False,
 339                        (XtEventHandler) wxCanvasEnterLeave,
 340                        (XtPointer) this
 341                      );
 342
 343     // Scrolled widget needs to have its colour changed or we get a little blue
 344     // square where the scrollbars abutt
 345     wxColour backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 346     wxDoChangeBackgroundColour(m_scrolledWindow, backgroundColour, TRUE);
 347     wxDoChangeBackgroundColour(m_drawingArea, backgroundColour, TRUE);
 348
 349     XmScrolledWindowSetAreas(
 350                              (Widget)m_scrolledWindow,
 351                              (Widget) 0, (Widget) 0,
 352                              (Widget) m_drawingArea);
 353
 354     // Without this, the cursor may not be restored properly (e.g. in splitter
 355     // sample).
 356     SetCursor(*wxSTANDARD_CURSOR);
 357     SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
 358     DoSetSizeIntr(pos.x, pos.y, size.x,size.y, wxSIZE_AUTO, TRUE);
 359     return TRUE;
 360 }
 361
 362 // Destructor
 363 wxWindow::~wxWindow()
 364 {
 365     if (g_captureWindow == this)
 366         g_captureWindow = NULL;
 367
 368     m_isBeingDeleted = TRUE;
 369
 370     // Motif-specific actions first
 371     WXWidget wMain = GetMainWidget();
 372     if ( wMain )
 373     {
 374         // Removes event handlers
 375         DetachWidget(wMain);
 376     }
 377
 378     if ( m_parent )
 379         m_parent->RemoveChild( this );
 380
 381     // If m_drawingArea, we're a fully-fledged window with drawing area,
 382     // scrollbars etc. (what wxCanvas used to be)
 383     if ( m_drawingArea )
 384     {
 385         // Destroy children before destroying self
 386         DestroyChildren();
 387
 388         if (m_backingPixmap)
 389             XFreePixmap (XtDisplay ((Widget) GetMainWidget()), (Pixmap) m_backingPixmap);
 390
 391         Widget w = (Widget) m_drawingArea;
 392         wxDeleteWindowFromTable(w);
 393
 394         if (w)
 395         {
 396             XtDestroyWidget(w);
 397             m_drawingArea = (WXWidget) 0;
 398         }
 399
 400         // Only if we're _really_ a canvas (not a dialog box/panel)
 401         if (m_scrolledWindow)
 402         {
 403             wxDeleteWindowFromTable((Widget) m_scrolledWindow);
 404         }
 405
 406         if (m_hScrollBar)
 407         {
 408             wxDeleteWindowFromTable((Widget) m_hScrollBar);
 409             XtUnmanageChild((Widget) m_hScrollBar);
 410         }
 411         if (m_vScrollBar)
 412         {
 413             wxDeleteWindowFromTable((Widget) m_vScrollBar);
 414             XtUnmanageChild((Widget) m_vScrollBar);
 415         }
 416
 417         if (m_hScrollBar)
 418             XtDestroyWidget((Widget) m_hScrollBar);
 419         if (m_vScrollBar)
 420             XtDestroyWidget((Widget) m_vScrollBar);
 421
 422         UnmanageAndDestroy(m_scrolledWindow);
 423
 424         if (m_borderWidget)
 425         {
 426             XtDestroyWidget ((Widget) m_borderWidget);
 427             m_borderWidget = (WXWidget) 0;
 428         }
 429     }
 430     else // Why wasn't this here before? JACS 8/3/2000
 431         DestroyChildren();
 432
 433
 434     // Destroy the window
 435     if (GetMainWidget())
 436     {
 437         // If this line (XtDestroyWidget) causes a crash, you may comment it out.
 438         // Child widgets will get destroyed automatically when a frame
 439         // or dialog is destroyed, but before that you may get some memory
 440         // leaks and potential layout problems if you delete and then add
 441         // child windows.
 442
 443         // GRG, Feb/2000: commented this out when adding support for
 444         //   wxSCROLL[WIN]_THUMBRELEASE events. Also it was reported
 445         //   that this call crashed wxMotif under OS/2, so it seems
 446         //   that leaving it out is the right thing to do.
 447         // SN, Feb/2000: newgrid/griddemo shows why it is needed :-(
 448         XtDestroyWidget((Widget) GetMainWidget());
 449         SetMainWidget((WXWidget) NULL);
 450     }
 451 }
 452
 453 // ----------------------------------------------------------------------------
 454 // scrollbar management
 455 // ----------------------------------------------------------------------------
 456
 457 WXWidget wxWindow::DoCreateScrollBar(WXWidget parent,
 458                                      wxOrientation orientation,
 459                                      void (*callback)())
 460 {
 461     int orient = ( orientation & wxHORIZONTAL ) ? XmHORIZONTAL : XmVERTICAL;
 462     Widget sb =
 463         XtVaCreateManagedWidget( "scrollBarWidget",
 464                                  xmScrollBarWidgetClass, (Widget)parent,
 465                                  XmNorientation, orient,
 466                                  XmNincrement, 1,
 467                                  XmNvalue, 0,
 468                                  NULL );
 469
 470     XtPointer o = (XtPointer)orientation;
 471     XtCallbackProc cb = (XtCallbackProc)callback;
 472
 473     XtAddCallback( sb, XmNvalueChangedCallback, cb, o );
 474     XtAddCallback( sb, XmNdragCallback, cb, o );
 475     XtAddCallback( sb, XmNincrementCallback, cb, o );
 476     XtAddCallback( sb, XmNdecrementCallback, cb, o );
 477     XtAddCallback( sb, XmNpageIncrementCallback, cb, o );
 478     XtAddCallback( sb, XmNpageDecrementCallback, cb, o );
 479     XtAddCallback( sb, XmNtoTopCallback, cb, o );
 480     XtAddCallback( sb, XmNtoBottomCallback, cb, o );
 481
 482     return (WXWidget)sb;
 483 }
 484
 485 // Helper function
 486 void wxWindow::CreateScrollbar(wxOrientation orientation)
 487 {
 488     wxCHECK_RET( m_drawingArea, "this window can't have scrollbars" );
 489
 490     XtVaSetValues( (Widget) m_scrolledWindow,
 491                    XmNresizePolicy, XmRESIZE_NONE,
 492                    NULL );
 493
 494     wxColour backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 495     // Add scrollbars if required
 496     if (orientation == wxHORIZONTAL)
 497     {
 498         m_hScrollBar = DoCreateScrollBar( m_scrolledWindow, wxHORIZONTAL,
 499                                           (void (*)())wxScrollBarCallback );
 500
 501         wxDoChangeBackgroundColour(m_hScrollBar, backgroundColour, TRUE);
 502
 503         XtRealizeWidget( (Widget)m_hScrollBar );
 504
 505         XtVaSetValues((Widget) m_scrolledWindow,
 506             XmNhorizontalScrollBar, (Widget) m_hScrollBar,
 507             NULL);
 508
 509         wxAddWindowToTable( (Widget)m_hScrollBar, this );
 510     }
 511     else if (orientation == wxVERTICAL)
 512     {
 513         m_vScrollBar = DoCreateScrollBar( m_scrolledWindow, wxVERTICAL,
 514                                           (void (*)())wxScrollBarCallback );
 515
 516         wxDoChangeBackgroundColour(m_vScrollBar, backgroundColour, TRUE);
 517
 518         XtRealizeWidget((Widget)m_vScrollBar);
 519
 520         XtVaSetValues((Widget) m_scrolledWindow,
 521             XmNverticalScrollBar, (Widget) m_vScrollBar,
 522             NULL);
 523
 524         wxAddWindowToTable( (Widget)m_vScrollBar, this );
 525     }
 526
 527     XtVaSetValues( (Widget) m_scrolledWindow,
 528                    XmNresizePolicy, XmRESIZE_ANY,
 529                    NULL );
 530 }
 531
 532 void wxWindow::DestroyScrollbar(wxOrientation orientation)
 533 {
 534     wxCHECK_RET( m_drawingArea, "this window can't have scrollbars" );
 535
 536     XtVaSetValues((Widget) m_scrolledWindow,
 537                   XmNresizePolicy, XmRESIZE_NONE,
 538                   NULL);
 539     String stringSB = orientation == wxHORIZONTAL ?
 540         XmNhorizontalScrollBar : XmNverticalScrollBar;
 541     WXWidget* widgetSB = orientation == wxHORIZONTAL ?
 542         &m_hScrollBar : &m_vScrollBar;
 543
 544     if( *widgetSB )
 545     {
 546         wxDeleteWindowFromTable( (Widget)*widgetSB );
 547         XtDestroyWidget( (Widget)*widgetSB );
 548         *widgetSB = (WXWidget)NULL;
 549     }
 550
 551     XtVaSetValues( (Widget)m_scrolledWindow,
 552                    stringSB, (Widget) 0,
 553                    NULL );
 554
 555     XtVaSetValues((Widget) m_scrolledWindow,
 556                   XmNresizePolicy, XmRESIZE_ANY,
 557                   NULL);
 558 }
 559
 560 // ---------------------------------------------------------------------------
 561 // basic operations
 562 // ---------------------------------------------------------------------------
 563
 564 void wxWindow::SetFocus()
 565 {
 566     Widget wMain = (Widget) GetMainWidget();
 567     XmProcessTraversal(wMain, XmTRAVERSE_CURRENT);
 568     XmProcessTraversal((Widget) GetMainWidget(), XmTRAVERSE_CURRENT);
 569 }
 570
 571 // Get the window with the focus
 572 wxWindow *wxWindowBase::FindFocus()
 573 {
 574     // TODO Problems:
 575     // (1) Can there be multiple focussed widgets in an application?
 576     // In which case we need to find the top-level window that's
 577     // currently active.
 578     // (2) The widget with the focus may not be in the widget table
 579     // depending on which widgets I put in the table
 580     wxWindow *winFocus = (wxWindow *)NULL;
 581     for ( wxWindowList::Node *node = wxTopLevelWindows.GetFirst();
 582           node;
 583           node = node->GetNext() )
 584     {
 585         wxWindow *win = node->GetData();
 586
 587         Widget w = XmGetFocusWidget ((Widget) win->GetTopWidget());
 588
 589         if (w != (Widget) NULL)
 590         {
 591             winFocus = wxGetWindowFromTable(w);
 592             if ( winFocus )
 593                 break;
 594         }
 595     }
 596
 597     return winFocus;
 598 }
 599
 600 bool wxWindow::Enable(bool enable)
 601 {
 602     if ( !wxWindowBase::Enable(enable) )
 603         return FALSE;
 604
 605     Widget wMain = (Widget)GetMainWidget();
 606     if ( wMain )
 607     {
 608         XtSetSensitive(wMain, enable);
 609         XmUpdateDisplay(wMain);
 610     }
 611
 612     return TRUE;
 613 }
 614
 615 bool wxWindow::Show(bool show)
 616 {
 617     if ( !wxWindowBase::Show(show) )
 618         return FALSE;
 619
 620     if (m_borderWidget || m_scrolledWindow)
 621     {
 622         MapOrUnmap(m_borderWidget ? m_borderWidget : m_scrolledWindow, show);
 623         // MapOrUnmap(m_drawingArea, show);
 624     }
 625     else
 626     {
 627         if ( !MapOrUnmap(GetTopWidget(), show) )
 628             MapOrUnmap(GetMainWidget(), show);
 629     }
 630
 631     return TRUE;
 632 }
 633
 634 // Raise the window to the top of the Z order
 635 void wxWindow::Raise()
 636 {
 637     Widget wTop = (Widget) GetTopWidget();
 638     Window window = XtWindow(wTop);
 639     XRaiseWindow(XtDisplay(wTop), window);
 640 }
 641
 642 // Lower the window to the bottom of the Z order
 643 void wxWindow::Lower()
 644 {
 645     Widget wTop = (Widget) GetTopWidget();
 646     Window window = XtWindow(wTop);
 647     XLowerWindow(XtDisplay(wTop), window);
 648 }
 649
 650 void wxWindow::SetTitle(const wxString& title)
 651 {
 652     XtVaSetValues((Widget)GetMainWidget(), XmNtitle, title.c_str(), NULL);
 653 }
 654
 655 wxString wxWindow::GetTitle() const
 656 {
 657     char *title;
 658     XtVaGetValues((Widget)GetMainWidget(), XmNtitle, &title, NULL);
 659
 660     return wxString(title);
 661 }
 662
 663 void wxWindow::DoCaptureMouse()
 664 {
 665     g_captureWindow = this;
 666     if ( m_winCaptured )
 667         return;
 668
 669     Widget wMain = (Widget)GetMainWidget();
 670     if ( wMain )
 671         XtAddGrab(wMain, TRUE, FALSE);
 672
 673     m_winCaptured = TRUE;
 674 }
 675
 676 void wxWindow::DoReleaseMouse()
 677 {
 678     g_captureWindow = NULL;
 679     if ( !m_winCaptured )
 680         return;
 681
 682     Widget wMain = (Widget)GetMainWidget();
 683     if ( wMain )
 684         XtRemoveGrab(wMain);
 685
 686     m_winCaptured = FALSE;
 687 }
 688
 689 bool wxWindow::SetFont(const wxFont& font)
 690 {
 691     if ( !wxWindowBase::SetFont(font) )
 692     {
 693         // nothing to do
 694         return FALSE;
 695     }
 696
 697     ChangeFont();
 698
 699     return TRUE;
 700 }
 701
 702 bool wxWindow::SetCursor(const wxCursor& cursor)
 703 {
 704     if ( !wxWindowBase::SetCursor(cursor) )
 705     {
 706         // no change
 707         return FALSE;
 708     }
 709
 710     //    wxASSERT_MSG( m_cursor.Ok(),
 711     //                  wxT("cursor must be valid after call to the base version"));
 712     wxCursor* cursor2 = NULL;
 713     if (m_cursor.Ok())
 714         cursor2 = & m_cursor;
 715     else
 716         cursor2 = wxSTANDARD_CURSOR;
 717
 718     WXDisplay *dpy = GetXDisplay();
 719     WXCursor x_cursor = cursor2->GetXCursor(dpy);
 720
 721     Widget w = (Widget) GetMainWidget();
 722     Window win = XtWindow(w);
 723     XDefineCursor((Display*) dpy, win, (Cursor) x_cursor);
 724
 725     return TRUE;
 726 }
 727
 728 // Coordinates relative to the window
 729 void wxWindow::WarpPointer (int x, int y)
 730 {
 731     Widget wClient = (Widget)GetClientWidget();
 732
 733     XWarpPointer(XtDisplay(wClient), None, XtWindow(wClient), 0, 0, 0, 0, x, y);
 734 }
 735
 736 // ---------------------------------------------------------------------------
 737 // scrolling stuff
 738 // ---------------------------------------------------------------------------
 739
 740 int wxWindow::GetScrollPos(int orient) const
 741 {
 742     if (orient == wxHORIZONTAL)
 743         return m_scrollPosX;
 744     else
 745         return m_scrollPosY;
 746
 747 #if 0
 748     Widget scrollBar = (Widget) ((orient == wxHORIZONTAL) ? m_hScrollBar : m_vScrollBar);
 749     if (scrollBar)
 750     {
 751         int pos;
 752         XtVaGetValues(scrollBar, XmNvalue, &pos, NULL);
 753         return pos;
 754     }
 755     else
 756         return 0;
 757 #endif // 0
 758 }
 759
 760 // This now returns the whole range, not just the number of positions that we
 761 // can scroll.
 762 int wxWindow::GetScrollRange(int orient) const
 763 {
 764     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 765     wxCHECK_MSG( scrollBar, 0, "no such scrollbar" );
 766
 767     int range = 0;
 768     if (scrollBar)
 769         XtVaGetValues(scrollBar, XmNmaximum, &range, NULL);
 770     return range;
 771 }
 772
 773 int wxWindow::GetScrollThumb(int orient) const
 774 {
 775     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 776     wxCHECK_MSG( scrollBar, 0, "no such scrollbar" );
 777
 778     int thumb;
 779     XtVaGetValues(scrollBar, XmNsliderSize, &thumb, NULL);
 780     return thumb;
 781 }
 782
 783 void wxWindow::SetScrollPos(int orient, int pos, bool WXUNUSED(refresh))
 784 {
 785     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 786
 787     if ( scrollBar )
 788     {
 789         XtVaSetValues (scrollBar, XmNvalue, pos, NULL);
 790     }
 791
 792     SetInternalScrollPos((wxOrientation)orient, pos);
 793 }
 794
 795 // New function that will replace some of the above.
 796 void wxWindow::SetScrollbar(int orient, int pos, int thumbVisible,
 797                             int range, bool WXUNUSED(refresh))
 798 {
 799     int oldW, oldH;
 800     GetSize(& oldW, & oldH);
 801
 802     if (range == 0)
 803         range = 1;
 804     if (thumbVisible == 0)
 805         thumbVisible = 1;
 806
 807     if (thumbVisible > range)
 808         thumbVisible = range;
 809
 810     // Save the old state to see if it changed
 811     WXWidget oldScrollBar = GetScrollbar((wxOrientation)orient);
 812
 813     if (orient == wxHORIZONTAL)
 814     {
 815         if (thumbVisible == range)
 816         {
 817             if (m_hScrollBar)
 818                 DestroyScrollbar(wxHORIZONTAL);
 819         }
 820         else
 821         {
 822             if (!m_hScrollBar)
 823                 CreateScrollbar(wxHORIZONTAL);
 824         }
 825     }
 826     if (orient == wxVERTICAL)
 827     {
 828         if (thumbVisible == range)
 829         {
 830             if (m_vScrollBar)
 831                 DestroyScrollbar(wxVERTICAL);
 832         }
 833         else
 834         {
 835             if (!m_vScrollBar)
 836                 CreateScrollbar(wxVERTICAL);
 837         }
 838     }
 839     WXWidget newScrollBar =  GetScrollbar((wxOrientation)orient);
 840
 841     if (oldScrollBar != newScrollBar)
 842     {
 843         // This is important! Without it, scrollbars misbehave badly.
 844         XtUnrealizeWidget((Widget) m_scrolledWindow);
 845         XmScrolledWindowSetAreas ((Widget) m_scrolledWindow, (Widget) m_hScrollBar, (Widget) m_vScrollBar, (Widget) m_drawingArea);
 846         XtRealizeWidget((Widget) m_scrolledWindow);
 847         XtManageChild((Widget) m_scrolledWindow);
 848     }
 849
 850     if (newScrollBar)
 851     {
 852         XtVaSetValues((Widget) newScrollBar,
 853         XmNvalue, pos,
 854         XmNminimum, 0,
 855         XmNmaximum, range,
 856         XmNsliderSize, thumbVisible,
 857         NULL);
 858     }
 859
 860     SetInternalScrollPos((wxOrientation)orient, pos);
 861
 862     int newW, newH;
 863     GetSize(& newW, & newH);
 864
 865     // Adjusting scrollbars can resize the canvas accidentally
 866     if (newW != oldW || newH != oldH)
 867         SetSize(-1, -1, oldW, oldH);
 868 }
 869
 870 // Does a physical scroll
 871 void wxWindow::ScrollWindow(int dx, int dy, const wxRect *rect)
 872 {
 873     int x, y, w, h;
 874     if (rect)
 875     {
 876         // Use specified rectangle
 877         x = rect->x; y = rect->y; w = rect->width; h = rect->height;
 878     }
 879     else
 880     {
 881         // Use whole client area
 882         x = 0; y = 0;
 883         GetClientSize(& w, & h);
 884     }
 885
 886     int x1 = (dx >= 0) ? x : x - dx;
 887     int y1 = (dy >= 0) ? y : y - dy;
 888     int w1 = w - abs(dx);
 889     int h1 = h - abs(dy);
 890     int x2 = (dx >= 0) ? x + dx : x;
 891     int y2 = (dy >= 0) ? y + dy : y;
 892
 893     wxClientDC dc(this);
 894
 895     dc.SetLogicalFunction (wxCOPY);
 896
 897     Widget widget = (Widget) GetMainWidget();
 898     Window window = XtWindow(widget);
 899     Display* display = XtDisplay(widget);
 900
 901     XCopyArea(display, window, window, (GC) dc.GetGC(),
 902               x1, y1, w1, h1, x2, y2);
 903
 904     dc.SetAutoSetting(TRUE);
 905     wxBrush brush(GetBackgroundColour(), wxSOLID);
 906     dc.SetBrush(brush); // FIXME: needed?
 907
 908     wxWindowList::Node *cnode = m_children.GetFirst();
 909     while (cnode)
 910     {
 911         wxWindow *child = cnode->GetData();
 912         int sx = 0;
 913         int sy = 0;
 914         child->GetSize( &sx, &sy );
 915         wxPoint pos( child->GetPosition() );
 916         child->SetSize( pos.x + dx, pos.y + dy, sx, sy, wxSIZE_ALLOW_MINUS_ONE );
 917         cnode = cnode->GetNext();
 918     }
 919
 920     // We'll add rectangles to the list of update rectangles according to which
 921     // bits we've exposed.
 922     wxList updateRects;
 923
 924     if (dx > 0)
 925     {
 926         wxRect *rect = new wxRect;
 927         rect->x = x;
 928         rect->y = y;
 929         rect->width = dx;
 930         rect->height = h;
 931
 932         XFillRectangle(display, window,
 933             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
 934
 935         rect->x = rect->x;
 936         rect->y = rect->y;
 937         rect->width = rect->width;
 938         rect->height = rect->height;
 939
 940         updateRects.Append((wxObject*) rect);
 941     }
 942     else if (dx < 0)
 943     {
 944         wxRect *rect = new wxRect;
 945
 946         rect->x = x + w + dx;
 947         rect->y = y;
 948         rect->width = -dx;
 949         rect->height = h;
 950
 951         XFillRectangle(display, window,
 952             (GC) dc.GetGC(), rect->x, rect->y, rect->width,
 953             rect->height);
 954
 955         rect->x = rect->x;
 956         rect->y = rect->y;
 957         rect->width = rect->width;
 958         rect->height = rect->height;
 959
 960         updateRects.Append((wxObject*) rect);
 961     }
 962     if (dy > 0)
 963     {
 964         wxRect *rect = new wxRect;
 965
 966         rect->x = x;
 967         rect->y = y;
 968         rect->width = w;
 969         rect->height = dy;
 970
 971         XFillRectangle(display, window,
 972             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
 973
 974         rect->x = rect->x;
 975         rect->y = rect->y;
 976         rect->width = rect->width;
 977         rect->height = rect->height;
 978
 979         updateRects.Append((wxObject*) rect);
 980     }
 981     else if (dy < 0)
 982     {
 983         wxRect *rect = new wxRect;
 984
 985         rect->x = x;
 986         rect->y = y + h + dy;
 987         rect->width = w;
 988         rect->height = -dy;
 989
 990         XFillRectangle(display, window,
 991             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
 992
 993         rect->x = rect->x;
 994         rect->y = rect->y;
 995         rect->width = rect->width;
 996         rect->height = rect->height;
 997
 998         updateRects.Append((wxObject*) rect);
 999     }
1000     dc.SetBrush(wxNullBrush);
1001
1002     // Now send expose events
1003
1004     wxList::Node* node = updateRects.GetFirst();
1005     while (node)
1006     {
1007         wxRect* rect = (wxRect*) node->GetData();
1008         XExposeEvent event;
1009
1010         event.type = Expose;
1011         event.display = display;
1012         event.send_event = True;
1013         event.window = window;
1014
1015         event.x = rect->x;
1016         event.y = rect->y;
1017         event.width = rect->width;
1018         event.height = rect->height;
1019
1020         event.count = 0;
1021
1022         XSendEvent(display, window, False, ExposureMask, (XEvent *)&event);
1023
1024         node = node->GetNext();
1025
1026     }
1027
1028     // Delete the update rects
1029     node = updateRects.GetFirst();
1030     while (node)
1031     {
1032         wxRect* rect = (wxRect*) node->GetData();
1033         delete rect;
1034         node = node->GetNext();
1035     }
1036
1037     XmUpdateDisplay((Widget) GetMainWidget());
1038 }
1039
1040 // ---------------------------------------------------------------------------
1041 // drag and drop
1042 // ---------------------------------------------------------------------------
1043
1044 #if wxUSE_DRAG_AND_DROP
1045
1046 void wxWindow::SetDropTarget(wxDropTarget * WXUNUSED(pDropTarget))
1047 {
1048     // TODO
1049 }
1050
1051 #endif
1052
1053 // Old style file-manager drag&drop
1054 void wxWindow::DragAcceptFiles(bool WXUNUSED(accept))
1055 {
1056     // TODO
1057 }
1058
1059 // ----------------------------------------------------------------------------
1060 // tooltips
1061 // ----------------------------------------------------------------------------
1062
1063 #if wxUSE_TOOLTIPS
1064
1065 void wxWindow::DoSetToolTip(wxToolTip * WXUNUSED(tooltip))
1066 {
1067     // TODO
1068 }
1069
1070 #endif // wxUSE_TOOLTIPS
1071
1072 // ----------------------------------------------------------------------------
1073 // popup menus
1074 // ----------------------------------------------------------------------------
1075
1076 #if wxUSE_MENUS
1077
1078 bool wxWindow::DoPopupMenu(wxMenu *menu, int x, int y)
1079 {
1080     Widget widget = (Widget) GetMainWidget();
1081
1082     /* The menuId field seems to be usused, so we'll use it to
1083     indicate whether a menu is popped up or not:
1084     0: Not currently created as a popup
1085     -1: Created as a popup, but not active
1086     1: Active popup.
1087     */
1088
1089     if (menu->GetParent() && (menu->GetId() != -1))
1090         return FALSE;
1091
1092     if (menu->GetMainWidget())
1093     {
1094         menu->DestroyMenu(TRUE);
1095     }
1096
1097     menu->SetId(1); /* Mark as popped-up */
1098     menu->CreateMenu(NULL, widget, menu);
1099     menu->SetInvokingWindow(this);
1100
1101     menu->UpdateUI();
1102
1103     //  menu->SetParent(parent);
1104     //  parent->children->Append(menu);  // Store menu for later deletion
1105
1106     Widget menuWidget = (Widget) menu->GetMainWidget();
1107
1108     int rootX = 0;
1109     int rootY = 0;
1110
1111     int deviceX = x;
1112     int deviceY = y;
1113     /*
1114     if (this->IsKindOf(CLASSINFO(wxCanvas)))
1115     {
1116     wxCanvas *canvas = (wxCanvas *) this;
1117     deviceX = canvas->GetDC ()->LogicalToDeviceX (x);
1118     deviceY = canvas->GetDC ()->LogicalToDeviceY (y);
1119     }
1120     */
1121
1122     Display *display = XtDisplay (widget);
1123     Window rootWindow = RootWindowOfScreen (XtScreen((Widget)widget));
1124     Window thisWindow = XtWindow (widget);
1125     Window childWindow;
1126     XTranslateCoordinates (display, thisWindow, rootWindow, (int) deviceX, (int) deviceY,
1127         &rootX, &rootY, &childWindow);
1128
1129     XButtonPressedEvent event;
1130     event.type = ButtonPress;
1131     event.button = 1;
1132
1133     event.x = deviceX;
1134     event.y = deviceY;
1135
1136     event.x_root = rootX;
1137     event.y_root = rootY;
1138
1139     XmMenuPosition (menuWidget, &event);
1140     XtManageChild (menuWidget);
1141
1142     // The ID of a pop-up menu is 1 when active, and is set to 0 by the
1143     // idle-time destroy routine.
1144     // Waiting until this ID changes causes this function to block until
1145     // the menu has been dismissed and the widgets cleaned up.
1146     // In other words, once this routine returns, it is safe to delete
1147     // the menu object.
1148     // Ian Brown <ian.brown@printsoft.de>
1149
1150     wxEventLoop evtLoop;
1151
1152     while (menu->GetId() == 1)
1153     {
1154         wxDoEventLoopIteration( evtLoop );
1155     }
1156
1157     return TRUE;
1158 }
1159
1160 #endif
1161
1162 // ---------------------------------------------------------------------------
1163 // moving and resizing
1164 // ---------------------------------------------------------------------------
1165
1166 bool wxWindow::PreResize()
1167 {
1168     return TRUE;
1169 }
1170
1171 // Get total size
1172 void wxWindow::DoGetSize(int *x, int *y) const
1173 {
1174     Widget widget = (Widget)( !m_drawingArea ? GetTopWidget() :
1175                               ( m_borderWidget ? m_borderWidget :
1176                                 m_scrolledWindow ? m_scrolledWindow :
1177                                 m_drawingArea ) );
1178     Dimension xx, yy;
1179
1180     XtVaGetValues( widget,
1181                    XmNwidth, &xx,
1182                    XmNheight, &yy,
1183                    NULL );
1184     if(x) *x = xx;
1185     if(y) *y = yy;
1186 }
1187
1188 void wxWindow::DoGetPosition(int *x, int *y) const
1189 {
1190     Widget widget = (Widget)
1191         ( m_drawingArea ?
1192           ( m_borderWidget ? m_borderWidget : m_scrolledWindow ) :
1193           GetTopWidget() );
1194
1195     Position xx, yy;
1196     XtVaGetValues(widget, XmNx, &xx, XmNy, &yy, NULL);
1197
1198     // We may be faking the client origin. So a window that's really at (0, 30)
1199     // may appear (to wxWin apps) to be at (0, 0).
1200     if (GetParent())
1201     {
1202         wxPoint pt(GetParent()->GetClientAreaOrigin());
1203         xx -= pt.x;
1204         yy -= pt.y;
1205     }
1206
1207     if(x) *x = xx;
1208     if(y) *y = yy;
1209 }
1210
1211 void wxWindow::DoScreenToClient(int *x, int *y) const
1212 {
1213     Widget widget = (Widget) GetClientWidget();
1214     Display *display = XtDisplay((Widget) GetMainWidget());
1215     Window rootWindow = RootWindowOfScreen(XtScreen(widget));
1216     Window thisWindow = XtWindow(widget);
1217
1218     Window childWindow;
1219     int xx = *x;
1220     int yy = *y;
1221     XTranslateCoordinates(display, rootWindow, thisWindow, xx, yy, x, y, &childWindow);
1222 }
1223
1224 void wxWindow::DoClientToScreen(int *x, int *y) const
1225 {
1226     Widget widget = (Widget) GetClientWidget();
1227     Display *display = XtDisplay(widget);
1228     Window rootWindow = RootWindowOfScreen(XtScreen(widget));
1229     Window thisWindow = XtWindow(widget);
1230
1231     Window childWindow;
1232     int xx = *x;
1233     int yy = *y;
1234     XTranslateCoordinates(display, thisWindow, rootWindow, xx, yy, x, y, &childWindow);
1235 }
1236
1237
1238 // Get size *available for subwindows* i.e. excluding menu bar etc.
1239 void wxWindow::DoGetClientSize(int *x, int *y) const
1240 {
1241     Widget widget = (Widget) GetClientWidget();
1242     Dimension xx, yy;
1243     XtVaGetValues(widget, XmNwidth, &xx, XmNheight, &yy, NULL);
1244     if(x) *x = xx; if(y) *y = yy;
1245 }
1246
1247 void wxWindow::DoSetSize(int x, int y, int width, int height, int sizeFlags)
1248 {
1249     DoSetSizeIntr(x, y, width, height, sizeFlags, FALSE);
1250 }
1251
1252 void wxWindow::DoSetSizeIntr(int x, int y, int width, int height,
1253                              int sizeFlags, bool fromCtor)
1254 {
1255     // A bit of optimization to help sort out the flickers.
1256     int oldX = -1, oldY = -1, oldW = -1, oldH = -1;
1257     if( !fromCtor )
1258     {
1259         GetSize(& oldW, & oldH);
1260         GetPosition(& oldX, & oldY);
1261     }
1262
1263     if ( !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
1264     {
1265         if ( x == -1 )
1266             x = oldX;
1267         if ( y == -1 )
1268             y = oldY;
1269     }
1270
1271     wxSize size(-1, -1);
1272     if ( width <= 0 )
1273     {
1274         if ( ( sizeFlags & wxSIZE_AUTO_WIDTH ) && !fromCtor )
1275         {
1276             size = DoGetBestSize();
1277             width = size.x;
1278         }
1279         else
1280         {
1281             width = oldW;
1282         }
1283     }
1284
1285     if ( height == -1 )
1286     {
1287         if( ( sizeFlags & wxSIZE_AUTO_HEIGHT ) && !fromCtor )
1288         {
1289             if( size.x == -1 ) size = DoGetBestSize();
1290             height = size.y;
1291         }
1292         else
1293         {
1294             height = oldH;
1295         }
1296     }
1297
1298     if ( x != oldX || y != oldY || width != oldW || height != oldH
1299          || !wxNoOptimize::CanOptimize() )
1300     {
1301         if (m_drawingArea)
1302         {
1303             int flags = 0;
1304
1305             if (x > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
1306                 flags |= wxMOVE_X;
1307
1308             if (y > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
1309                 flags |= wxMOVE_Y;
1310
1311             if (width > 0)
1312                 flags |= wxMOVE_WIDTH;
1313
1314             if (height > 0)
1315                 flags |= wxMOVE_HEIGHT;
1316
1317             int xx = x; int yy = y;
1318             AdjustForParentClientOrigin(xx, yy, sizeFlags);
1319             if( !fromCtor )
1320                 DoMoveWindow( xx, yy, width, height );
1321             else
1322                 DoMoveWindowIntr( xx, yy, width, height, flags );
1323
1324             return;
1325         }
1326
1327         Widget widget = (Widget) GetTopWidget();
1328         if (!widget)
1329             return;
1330
1331         bool managed = XtIsManaged( widget );
1332         if (managed)
1333             XtUnmanageChild(widget);
1334
1335         int xx = x;
1336         int yy = y;
1337         AdjustForParentClientOrigin(xx, yy, sizeFlags);
1338
1339         DoMoveWindow(xx, yy, width, height);
1340
1341         if (managed)
1342             XtManageChild(widget);
1343     }
1344 }
1345
1346 void wxWindow::DoSetClientSize(int width, int height)
1347 {
1348     if (m_drawingArea)
1349     {
1350         Widget drawingArea = (Widget) m_drawingArea;
1351
1352         XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_ANY, NULL);
1353
1354         if (width > -1)
1355             XtVaSetValues(drawingArea, XmNwidth, width, NULL);
1356         if (height > -1)
1357             XtVaSetValues(drawingArea, XmNheight, height, NULL);
1358
1359         XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_NONE, NULL);
1360         return;
1361     }
1362
1363     Widget widget = (Widget) GetTopWidget();
1364
1365     if (width > -1)
1366         XtVaSetValues(widget, XmNwidth, width, NULL);
1367     if (height > -1)
1368         XtVaSetValues(widget, XmNheight, height, NULL);
1369 }
1370
1371 // For implementation purposes - sometimes decorations make the client area
1372 // smaller
1373 wxPoint wxWindow::GetClientAreaOrigin() const
1374 {
1375     return wxPoint(0, 0);
1376 }
1377
1378 void wxWindow::DoMoveWindowIntr(int xx, int yy, int w, int h,
1379                                 int flags)
1380 {
1381     if (m_drawingArea)
1382     {
1383         Widget drawingArea = (Widget) m_drawingArea;
1384         Widget borderOrScrolled = m_borderWidget ?
1385             (Widget) m_borderWidget :
1386             (Widget) m_scrolledWindow;
1387
1388         bool managed = XtIsManaged(borderOrScrolled);
1389         if (managed)
1390             XtUnmanageChild (borderOrScrolled);
1391         XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_ANY, NULL);
1392
1393         if (flags & wxMOVE_X)
1394             XtVaSetValues (borderOrScrolled,
1395                            XmNx, xx,
1396                            NULL);
1397         if (flags & wxMOVE_Y)
1398             XtVaSetValues (borderOrScrolled,
1399                            XmNy, yy,
1400                            NULL);
1401
1402         if (flags & wxMOVE_WIDTH)
1403         {
1404             if (m_borderWidget)
1405             {
1406                 XtVaSetValues ((Widget) m_borderWidget, XmNwidth, w, NULL);
1407                 short thick, margin;
1408                 XtVaGetValues ((Widget) m_borderWidget,
1409                                XmNshadowThickness, &thick,
1410                                XmNmarginWidth, &margin,
1411                                NULL);
1412                 w -= 2 * (thick + margin);
1413             }
1414
1415             XtVaSetValues ((Widget) m_scrolledWindow, XmNwidth, w, NULL);
1416         }
1417
1418         if (flags & wxMOVE_HEIGHT)
1419         {
1420             if (m_borderWidget)
1421             {
1422                 XtVaSetValues ((Widget) m_borderWidget, XmNheight, h, NULL);
1423                 short thick, margin;
1424                 XtVaGetValues ((Widget) m_borderWidget,
1425                                XmNshadowThickness, &thick,
1426                                XmNmarginHeight, &margin,
1427                                NULL);
1428                 h -= 2 * (thick + margin);
1429             }
1430
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::Clear()
1582 {
1583     wxClientDC dc(this);
1584     wxBrush brush(GetBackgroundColour(), wxSOLID);
1585     dc.SetBackground(brush);
1586     dc.Clear();
1587 }
1588
1589 void wxWindow::DoPaint()
1590 {
1591     //TODO : make a temporary gc so we can do the XCopyArea below
1592     if (m_backingPixmap && !m_needsRefresh)
1593     {
1594       wxPaintDC dc(this);
1595
1596       GC tempGC = (GC) dc.GetBackingGC();
1597
1598       Widget widget = (Widget) GetMainWidget();
1599
1600       int scrollPosX = 0;
1601       int scrollPosY = 0;
1602
1603       // We have to test whether it's a wxScrolledWindow (hack!) because
1604       // otherwise we don't know how many pixels have been scrolled. We might
1605       // solve this in the future by defining virtual wxWindow functions to get
1606       // the scroll position in pixels. Or, each kind of scrolled window has to
1607       // implement backing stores itself, using generic wxWindows code.
1608       wxScrolledWindow* scrolledWindow = wxDynamicCast(this, wxScrolledWindow);
1609       if ( scrolledWindow )
1610       {
1611           int x, y;
1612           scrolledWindow->CalcScrolledPosition(0, 0, &x, &y);
1613
1614           scrollPosX = - x;
1615           scrollPosY = - y;
1616       }
1617
1618       // TODO: This could be optimized further by only copying the areas in the
1619       //       current update region.
1620
1621       // Only blit the part visible in the client area. The backing pixmap
1622       // always starts at 0, 0 but we may be looking at only a portion of it.
1623       wxSize clientArea = GetClientSize();
1624       int toBlitX = m_pixmapWidth - scrollPosX;
1625       int toBlitY = m_pixmapHeight - scrollPosY;
1626
1627       // Copy whichever is samller, the amount of pixmap we have to copy,
1628       // or the size of the client area.
1629       toBlitX = wxMin(toBlitX, clientArea.x);
1630       toBlitY = wxMin(toBlitY, clientArea.y);
1631
1632       // Make sure we're not negative
1633       toBlitX = wxMax(0, toBlitX);
1634       toBlitY = wxMax(0, toBlitY);
1635
1636       XCopyArea
1637       (
1638        XtDisplay(widget),
1639        (Pixmap) m_backingPixmap,
1640        XtWindow (widget),
1641        tempGC,
1642        scrollPosX, scrollPosY, // Start at the scroll position
1643        toBlitX, toBlitY,       // How much of the pixmap to copy
1644        0, 0                    // Destination
1645       );
1646     }
1647     else
1648     {
1649         wxWindowDC dc(this);
1650         // Set an erase event first
1651         wxEraseEvent eraseEvent(GetId(), &dc);
1652         eraseEvent.SetEventObject(this);
1653         GetEventHandler()->ProcessEvent(eraseEvent);
1654
1655         wxPaintEvent event(GetId());
1656         event.SetEventObject(this);
1657         GetEventHandler()->ProcessEvent(event);
1658
1659         m_needsRefresh = FALSE;
1660     }
1661 }
1662
1663 // ----------------------------------------------------------------------------
1664 // event handlers
1665 // ----------------------------------------------------------------------------
1666
1667 // Responds to colour changes: passes event on to children.
1668 void wxWindow::OnSysColourChanged(wxSysColourChangedEvent& event)
1669 {
1670     wxWindowList::Node *node = GetChildren().GetFirst();
1671     while ( node )
1672     {
1673         // Only propagate to non-top-level windows
1674         wxWindow *win = node->GetData();
1675         if ( win->GetParent() )
1676         {
1677             wxSysColourChangedEvent event2;
1678             event.m_eventObject = win;
1679             win->GetEventHandler()->ProcessEvent(event2);
1680         }
1681
1682         node = node->GetNext();
1683     }
1684 }
1685
1686 void wxWindow::OnIdle(wxIdleEvent& WXUNUSED(event))
1687 {
1688     // This calls the UI-update mechanism (querying windows for
1689     // menu/toolbar/control state information)
1690     UpdateWindowUI();
1691 }
1692
1693 // ----------------------------------------------------------------------------
1694 // accelerators
1695 // ----------------------------------------------------------------------------
1696
1697 bool wxWindow::ProcessAccelerator(wxKeyEvent& event)
1698 {
1699 #if wxUSE_ACCEL
1700     if (!m_acceleratorTable.Ok())
1701         return FALSE;
1702
1703     int count = m_acceleratorTable.GetCount();
1704     wxAcceleratorEntry* entries = m_acceleratorTable.GetEntries();
1705     int i;
1706     for (i = 0; i < count; i++)
1707     {
1708         wxAcceleratorEntry* entry = & (entries[i]);
1709         if (entry->MatchesEvent(event))
1710         {
1711             // Bingo, we have a match. Now find a control that matches the
1712             // entry command id.
1713
1714             // Need to go up to the top of the window hierarchy, since it might
1715             // be e.g. a menu item
1716             wxWindow* parent = this;
1717             while ( parent && !parent->IsTopLevel() )
1718                 parent = parent->GetParent();
1719
1720             if (!parent)
1721                 return FALSE;
1722
1723             wxFrame* frame = wxDynamicCast(parent, wxFrame);
1724             if ( frame )
1725             {
1726 #if wxUSE_MENUS
1727                 // Try for a menu command
1728                 if (frame->GetMenuBar())
1729                 {
1730                     wxMenuItem* item = frame->GetMenuBar()->FindItem(entry->GetCommand());
1731                     if (item)
1732                     {
1733                         wxCommandEvent commandEvent(wxEVT_COMMAND_MENU_SELECTED, entry->GetCommand());
1734                         commandEvent.SetEventObject(frame);
1735
1736                         // If ProcessEvent returns TRUE (it was handled), then
1737                         // the calling code will skip the event handling.
1738                         return frame->GetEventHandler()->ProcessEvent(commandEvent);
1739                     }
1740                 }
1741 #endif
1742             }
1743
1744             // Find a child matching the command id
1745             wxWindow* child = parent->FindWindow(entry->GetCommand());
1746
1747             // No such child
1748             if (!child)
1749                 return FALSE;
1750
1751             // Now we process those kinds of windows that we can.
1752             // For now, only buttons.
1753             if ( wxDynamicCast(child, wxButton) )
1754             {
1755                 wxCommandEvent commandEvent (wxEVT_COMMAND_BUTTON_CLICKED, child->GetId());
1756                 commandEvent.SetEventObject(child);
1757                 return child->GetEventHandler()->ProcessEvent(commandEvent);
1758             }
1759
1760             return FALSE;
1761         } // matches event
1762     }// for
1763 #endif
1764
1765     // We didn't match the key event against an accelerator.
1766     return FALSE;
1767 }
1768
1769 // ============================================================================
1770 // Motif-specific stuff from here on
1771 // ============================================================================
1772
1773 // ----------------------------------------------------------------------------
1774 // function which maintain the global hash table mapping Widgets to wxWindows
1775 // ----------------------------------------------------------------------------
1776
1777 bool wxAddWindowToTable(Widget w, wxWindow *win)
1778 {
1779     wxWindow *oldItem = NULL;
1780     if ((oldItem = (wxWindow *)wxWidgetHashTable->Get ((long) w)))
1781     {
1782         wxLogDebug("Widget table clash: new widget is %ld, %s",
1783                    (long)w, win->GetClassInfo()->GetClassName());
1784         return FALSE;
1785     }
1786
1787     wxWidgetHashTable->Put((long) w, win);
1788
1789     wxLogTrace("widget", "Widget 0x%p <-> window %p (%s)",
1790                (WXWidget)w, win, win->GetClassInfo()->GetClassName());
1791
1792     return TRUE;
1793 }
1794
1795 wxWindow *wxGetWindowFromTable(Widget w)
1796 {
1797     return (wxWindow *)wxWidgetHashTable->Get((long) w);
1798 }
1799
1800 void wxDeleteWindowFromTable(Widget w)
1801 {
1802     wxLogTrace("widget", "Widget 0x%p", (WXWidget)w);
1803
1804     wxWidgetHashTable->Delete((long)w);
1805 }
1806
1807 // ----------------------------------------------------------------------------
1808 // add/remove window from the table
1809 // ----------------------------------------------------------------------------
1810
1811 // Add to hash table, add event handler
1812 bool wxWindow::AttachWidget (wxWindow* WXUNUSED(parent), WXWidget mainWidget,
1813                              WXWidget formWidget, int x, int y, int width, int height)
1814 {
1815     wxAddWindowToTable((Widget) mainWidget, this);
1816     XtAddEventHandler( (Widget) mainWidget,
1817                        ButtonPressMask | ButtonReleaseMask
1818                      | PointerMotionMask,
1819                        False,
1820                        wxPanelItemEventHandler,
1821                        (XtPointer) this);
1822
1823     if (!formWidget)
1824     {
1825         XtTranslations ptr;
1826         XtOverrideTranslations ((Widget) mainWidget,
1827             ptr = XtParseTranslationTable ("<Configure>: resize()"));
1828         XtFree ((char *) ptr);
1829     }
1830
1831     // Some widgets have a parent form widget, e.g. wxRadioBox
1832     if (formWidget)
1833     {
1834         if (!wxAddWindowToTable((Widget) formWidget, this))
1835             return FALSE;
1836
1837         XtTranslations ptr;
1838         XtOverrideTranslations ((Widget) formWidget,
1839             ptr = XtParseTranslationTable ("<Configure>: resize()"));
1840         XtFree ((char *) ptr);
1841     }
1842
1843     if (x == -1)
1844         x = 0;
1845     if (y == -1)
1846         y = 0;
1847     SetSize (x, y, width, height);
1848
1849     return TRUE;
1850 }
1851
1852 // Remove event handler, remove from hash table
1853 bool wxWindow::DetachWidget(WXWidget widget)
1854 {
1855     XtRemoveEventHandler( (Widget) widget,
1856                           ButtonPressMask | ButtonReleaseMask
1857                         | PointerMotionMask,
1858                           False,
1859                           wxPanelItemEventHandler,
1860                           (XtPointer)this);
1861
1862     wxDeleteWindowFromTable((Widget) widget);
1863     return TRUE;
1864 }
1865
1866 // ----------------------------------------------------------------------------
1867 // Motif-specific accessors
1868 // ----------------------------------------------------------------------------
1869
1870 // Get the underlying X window
1871 WXWindow wxWindow::GetXWindow() const
1872 {
1873     Widget wMain = (Widget)GetMainWidget();
1874     if ( wMain )
1875         return (WXWindow) XtWindow(wMain);
1876     else
1877         return (WXWindow) 0;
1878 }
1879
1880 // Get the underlying X display
1881 WXDisplay *wxWindow::GetXDisplay() const
1882 {
1883     Widget wMain = (Widget)GetMainWidget();
1884     if ( wMain )
1885         return (WXDisplay*) XtDisplay(wMain);
1886     else
1887         return (WXDisplay*) NULL;
1888 }
1889
1890 WXWidget wxWindow::GetMainWidget() const
1891 {
1892     if (m_drawingArea)
1893         return m_drawingArea;
1894     else
1895         return m_mainWidget;
1896 }
1897
1898 WXWidget wxWindow::GetClientWidget() const
1899 {
1900     if (m_drawingArea != (WXWidget) 0)
1901         return m_drawingArea;
1902     else
1903         return GetMainWidget();
1904 }
1905
1906 WXWidget wxWindow::GetTopWidget() const
1907 {
1908     return GetMainWidget();
1909 }
1910
1911 WXWidget wxWindow::GetLabelWidget() const
1912 {
1913     return GetMainWidget();
1914 }
1915
1916 // ----------------------------------------------------------------------------
1917 // Motif callbacks
1918 // ----------------------------------------------------------------------------
1919
1920 // All widgets should have this as their resize proc.
1921 // OnSize sent to wxWindow via client data.
1922 void wxWidgetResizeProc(Widget w, XConfigureEvent *WXUNUSED(event),
1923                         String WXUNUSED(args)[], int *WXUNUSED(num_args))
1924 {
1925     wxWindow *win = wxGetWindowFromTable(w);
1926     if (!win)
1927         return;
1928
1929     if (win->PreResize())
1930     {
1931         int width, height;
1932         win->GetSize(&width, &height);
1933         wxSizeEvent sizeEvent(wxSize(width, height), win->GetId());
1934         sizeEvent.SetEventObject(win);
1935         win->GetEventHandler()->ProcessEvent(sizeEvent);
1936     }
1937 }
1938
1939 static void wxCanvasRepaintProc(Widget drawingArea,
1940                                 XtPointer clientData,
1941                                 XmDrawingAreaCallbackStruct * cbs)
1942 {
1943     if (!wxGetWindowFromTable(drawingArea))
1944         return;
1945
1946     XEvent * event = cbs->event;
1947     wxWindow * win = (wxWindow *) clientData;
1948
1949     switch (event->type)
1950     {
1951     case Expose:
1952         {
1953             win->AddUpdateRect(event->xexpose.x, event->xexpose.y,
1954                                event->xexpose.width, event->xexpose.height);
1955
1956             if (event -> xexpose.count == 0)
1957             {
1958                 win->DoPaint();
1959             }
1960             break;
1961         }
1962     }
1963 }
1964
1965 // Unable to deal with Enter/Leave without a separate EventHandler (Motif 1.1.4)
1966 static void wxCanvasEnterLeave(Widget drawingArea,
1967                                XtPointer WXUNUSED(clientData),
1968                                XCrossingEvent * event)
1969 {
1970     XmDrawingAreaCallbackStruct cbs;
1971     XEvent ev;
1972
1973     ((XCrossingEvent &) ev) = *event;
1974
1975     cbs.reason = XmCR_INPUT;
1976     cbs.event = &ev;
1977
1978     wxCanvasInputEvent(drawingArea, (XtPointer) NULL, &cbs);
1979 }
1980
1981 // Fix to make it work under Motif 1.0 (!)
1982 static void wxCanvasMotionEvent (Widget WXUNUSED(drawingArea),
1983                                  XButtonEvent *WXUNUSED(event))
1984 {
1985 #if XmVersion <= 1000
1986     XmDrawingAreaCallbackStruct cbs;
1987     XEvent ev;
1988
1989     ev = *((XEvent *) event);
1990     cbs.reason = XmCR_INPUT;
1991     cbs.event = &ev;
1992
1993     wxCanvasInputEvent (drawingArea, (XtPointer) NULL, &cbs);
1994 #endif // XmVersion <= 1000
1995 }
1996
1997 static void wxCanvasInputEvent(Widget drawingArea,
1998                                XtPointer WXUNUSED(data),
1999                                XmDrawingAreaCallbackStruct * cbs)
2000 {
2001     wxWindow *canvas = wxGetWindowFromTable(drawingArea);
2002     XEvent local_event;
2003
2004     if (canvas==NULL)
2005         return;
2006
2007     if (cbs->reason != XmCR_INPUT)
2008         return;
2009
2010     local_event = *(cbs->event);    // We must keep a copy!
2011
2012     switch (local_event.xany.type)
2013     {
2014     case EnterNotify:
2015     case LeaveNotify:
2016     case ButtonPress:
2017     case ButtonRelease:
2018     case MotionNotify:
2019     {
2020         wxMouseEvent wxevent;
2021         if(wxTranslateMouseEvent(wxevent, canvas, drawingArea, &local_event))
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, &local_event))
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, &local_event))
2061             {
2062                 canvas->GetEventHandler()->ProcessEvent (event);
2063             }
2064             break;
2065         }
2066     case FocusIn:
2067         {
2068             if (local_event.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 (local_event.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, 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             wxEventType eventType = wxEVT_NULL;
2234
2235             if (xevent->xany.type == LeaveNotify)
2236             {
2237                 eventType = wxEVT_LEAVE_WINDOW;
2238             }
2239             if (xevent->xany.type == EnterNotify)
2240             {
2241                 eventType = wxEVT_ENTER_WINDOW;
2242             }
2243             else if (xevent->xany.type == MotionNotify)
2244             {
2245                 eventType = wxEVT_MOTION;
2246             }
2247             else if (xevent->xany.type == ButtonPress)
2248             {
2249                 wxevent.SetTimestamp(xevent->xbutton.time);
2250                 int button = 0;
2251                 if (xevent->xbutton.button == Button1)
2252                 {
2253                     eventType = wxEVT_LEFT_DOWN;
2254                     button = 1;
2255                 }
2256                 else if (xevent->xbutton.button == Button2)
2257                 {
2258                     eventType = wxEVT_MIDDLE_DOWN;
2259                     button = 2;
2260                 }
2261                 else if (xevent->xbutton.button == Button3)
2262                 {
2263                     eventType = wxEVT_RIGHT_DOWN;
2264                     button = 3;
2265                 }
2266
2267                 // check for a double click
2268                 //
2269                 long dclickTime = XtGetMultiClickTime(xevent->xany.display);
2270                 long ts = wxevent.GetTimestamp();
2271
2272                 int buttonLast = win->GetLastClickedButton();
2273                 long lastTS = win->GetLastClickTime();
2274                 if ( buttonLast && buttonLast == button &&
2275                      (ts - lastTS) < dclickTime )
2276                 {
2277                     // I have a dclick
2278                     win->SetLastClick(0, ts);
2279                     if ( eventType == wxEVT_LEFT_DOWN )
2280                         eventType = wxEVT_LEFT_DCLICK;
2281                     else if ( eventType == wxEVT_MIDDLE_DOWN )
2282                         eventType = wxEVT_MIDDLE_DCLICK;
2283                     else if ( eventType == wxEVT_RIGHT_DOWN )
2284                         eventType = wxEVT_RIGHT_DCLICK;
2285                 }
2286                 else
2287                 {
2288                     // not fast enough or different button
2289                     win->SetLastClick(button, ts);
2290                 }
2291             }
2292             else if (xevent->xany.type == ButtonRelease)
2293             {
2294                 if (xevent->xbutton.button == Button1)
2295                 {
2296                     eventType = wxEVT_LEFT_UP;
2297                 }
2298                 else if (xevent->xbutton.button == Button2)
2299                 {
2300                     eventType = wxEVT_MIDDLE_UP;
2301                 }
2302                 else if (xevent->xbutton.button == Button3)
2303                 {
2304                     eventType = wxEVT_RIGHT_UP;
2305                 }
2306                 else
2307                     return FALSE;
2308             }
2309             else
2310             {
2311                 return FALSE;
2312             }
2313
2314             wxevent.SetEventType(eventType);
2315
2316             Position x1, y1;
2317             XtVaGetValues(widget, XmNx, &x1, XmNy, &y1, NULL);
2318
2319             int x2, y2;
2320             win->GetPosition(&x2, &y2);
2321
2322             // The button x/y must be translated to wxWindows
2323             // window space - the widget might be a label or button,
2324             // within a form.
2325             int dx = 0;
2326             int dy = 0;
2327             if (widget != (Widget)win->GetMainWidget())
2328             {
2329                 dx = x1;
2330                 dy = y1;
2331             }
2332
2333             wxevent.m_x = xevent->xbutton.x + dx;
2334             wxevent.m_y = xevent->xbutton.y + dy;
2335
2336             wxevent.m_leftDown = ((eventType == wxEVT_LEFT_DOWN)
2337                 || (event_left_is_down (xevent)
2338                 && (eventType != wxEVT_LEFT_UP)));
2339             wxevent.m_middleDown = ((eventType == wxEVT_MIDDLE_DOWN)
2340                 || (event_middle_is_down (xevent)
2341                 && (eventType != wxEVT_MIDDLE_UP)));
2342             wxevent.m_rightDown = ((eventType == wxEVT_RIGHT_DOWN)
2343                 || (event_right_is_down (xevent)
2344                 && (eventType != wxEVT_RIGHT_UP)));
2345
2346             wxevent.m_shiftDown = xevent->xbutton.state & ShiftMask;
2347             wxevent.m_controlDown = xevent->xbutton.state & ControlMask;
2348             wxevent.m_altDown = xevent->xbutton.state & Mod3Mask;
2349             wxevent.m_metaDown = xevent->xbutton.state & Mod1Mask;
2350
2351             wxevent.SetId(win->GetId());
2352             wxevent.SetEventObject(win);
2353
2354             return TRUE;
2355         }
2356     }
2357     return FALSE;
2358 }
2359
2360 bool wxTranslateKeyEvent(wxKeyEvent& wxevent, wxWindow *win,
2361                          Widget WXUNUSED(widget), XEvent *xevent)
2362 {
2363     switch (xevent->xany.type)
2364     {
2365     case KeyPress:
2366     case KeyRelease:
2367         {
2368             char buf[20];
2369
2370             KeySym keySym;
2371             (void) XLookupString((XKeyEvent *)xevent, buf, 20, &keySym, NULL);
2372             int id = wxCharCodeXToWX (keySym);
2373             // id may be WXK_xxx code - these are outside ASCII range, so we
2374             // can't just use toupper() on id
2375             if (id >= 'a' && id <= 'z')
2376                 id = toupper(id);
2377
2378             if (xevent->xkey.state & ShiftMask)
2379                 wxevent.m_shiftDown = TRUE;
2380             if (xevent->xkey.state & ControlMask)
2381                 wxevent.m_controlDown = TRUE;
2382             if (xevent->xkey.state & Mod3Mask)
2383                 wxevent.m_altDown = TRUE;
2384             if (xevent->xkey.state & Mod1Mask)
2385                 wxevent.m_metaDown = TRUE;
2386             wxevent.SetEventObject(win);
2387             wxevent.m_keyCode = id;
2388             wxevent.SetTimestamp(xevent->xkey.time);
2389
2390             wxevent.m_x = xevent->xbutton.x;
2391             wxevent.m_y = xevent->xbutton.y;
2392
2393             if (id > -1)
2394                 return TRUE;
2395             else
2396                 return FALSE;
2397             break;
2398         }
2399     default:
2400         break;
2401     }
2402     return FALSE;
2403 }
2404
2405 // ----------------------------------------------------------------------------
2406 // Colour stuff
2407 // ----------------------------------------------------------------------------
2408
2409 #define YAllocColor XAllocColor
2410 XColor g_itemColors[5];
2411 int wxComputeColours (Display *display, wxColour * back, wxColour * fore)
2412 {
2413     int result;
2414     static XmColorProc colorProc;
2415
2416     result = wxNO_COLORS;
2417
2418     if (back)
2419     {
2420         g_itemColors[0].red = (((long) back->Red ()) << 8);
2421         g_itemColors[0].green = (((long) back->Green ()) << 8);
2422         g_itemColors[0].blue = (((long) back->Blue ()) << 8);
2423         g_itemColors[0].flags = DoRed | DoGreen | DoBlue;
2424         if (colorProc == (XmColorProc) NULL)
2425         {
2426             // Get a ptr to the actual function
2427             colorProc = XmSetColorCalculation ((XmColorProc) NULL);
2428             // And set it back to motif.
2429             XmSetColorCalculation (colorProc);
2430         }
2431         (*colorProc) (&g_itemColors[wxBACK_INDEX],
2432             &g_itemColors[wxFORE_INDEX],
2433             &g_itemColors[wxSELE_INDEX],
2434             &g_itemColors[wxTOPS_INDEX],
2435             &g_itemColors[wxBOTS_INDEX]);
2436         result = wxBACK_COLORS;
2437     }
2438     if (fore)
2439     {
2440         g_itemColors[wxFORE_INDEX].red = (((long) fore->Red ()) << 8);
2441         g_itemColors[wxFORE_INDEX].green = (((long) fore->Green ()) << 8);
2442         g_itemColors[wxFORE_INDEX].blue = (((long) fore->Blue ()) << 8);
2443         g_itemColors[wxFORE_INDEX].flags = DoRed | DoGreen | DoBlue;
2444         if (result == wxNO_COLORS)
2445             result = wxFORE_COLORS;
2446     }
2447
2448     Display *dpy = display;
2449     Colormap cmap = (Colormap) wxTheApp->GetMainColormap((WXDisplay*) dpy);
2450
2451     if (back)
2452     {
2453         /* 5 Colours to allocate */
2454         for (int i = 0; i < 5; i++)
2455             if (!YAllocColor (dpy, cmap, &g_itemColors[i]))
2456                 result = wxNO_COLORS;
2457     }
2458     else if (fore)
2459     {
2460         /* Only 1 colour to allocate */
2461         if (!YAllocColor (dpy, cmap, &g_itemColors[wxFORE_INDEX]))
2462             result = wxNO_COLORS;
2463     }
2464
2465     return result;
2466 }
2467
2468 // Changes the foreground and background colours to be derived from the current
2469 // background colour. To change the foreground colour, you must call
2470 // SetForegroundColour explicitly.
2471 void wxWindow::ChangeBackgroundColour()
2472 {
2473     WXWidget mainWidget = GetMainWidget();
2474     if ( mainWidget )
2475         wxDoChangeBackgroundColour(mainWidget, m_backgroundColour);
2476 }
2477
2478 void wxWindow::ChangeForegroundColour()
2479 {
2480     WXWidget mainWidget = GetMainWidget();
2481     if ( mainWidget )
2482         wxDoChangeForegroundColour(mainWidget, m_foregroundColour);
2483     if ( m_scrolledWindow && mainWidget != m_scrolledWindow )
2484         wxDoChangeForegroundColour(m_scrolledWindow, m_foregroundColour);
2485 }
2486
2487 bool wxWindow::SetBackgroundColour(const wxColour& col)
2488 {
2489     if ( !wxWindowBase::SetBackgroundColour(col) )
2490         return FALSE;
2491
2492     ChangeBackgroundColour();
2493
2494     return TRUE;
2495 }
2496
2497 bool wxWindow::SetForegroundColour(const wxColour& col)
2498 {
2499     if ( !wxWindowBase::SetForegroundColour(col) )
2500         return FALSE;
2501
2502     ChangeForegroundColour();
2503
2504     return TRUE;
2505 }
2506
2507 void wxWindow::ChangeFont(bool keepOriginalSize)
2508 {
2509     // Note that this causes the widget to be resized back
2510     // to its original size! We therefore have to set the size
2511     // back again. TODO: a better way in Motif?
2512     Widget w = (Widget) GetLabelWidget(); // Usually the main widget
2513     if (w && m_font.Ok())
2514     {
2515         int width, height, width1, height1;
2516         GetSize(& width, & height);
2517
2518         wxDoChangeFont( GetLabelWidget(), m_font );
2519
2520         GetSize(& width1, & height1);
2521         if (keepOriginalSize && (width != width1 || height != height1))
2522         {
2523             SetSize(-1, -1, width, height);
2524         }
2525     }
2526 }
2527
2528 // ----------------------------------------------------------------------------
2529 // global functions
2530 // ----------------------------------------------------------------------------
2531
2532 wxWindow *wxGetActiveWindow()
2533 {
2534     // TODO
2535     wxFAIL_MSG("Not implemented");
2536     return NULL;
2537 }
2538
2539 /* static */
2540 wxWindow *wxWindowBase::GetCapture()
2541 {
2542     return (wxWindow *)g_captureWindow;
2543 }
2544
2545
2546 // Find the wxWindow at the current mouse position, returning the mouse
2547 // position.
2548 wxWindow* wxFindWindowAtPointer(wxPoint& pt)
2549 {
2550     return wxFindWindowAtPoint(wxGetMousePosition());
2551 }
2552
2553 // Get the current mouse position.
2554 wxPoint wxGetMousePosition()
2555 {
2556     Display *display = wxGlobalDisplay();
2557     Window rootWindow = RootWindowOfScreen (DefaultScreenOfDisplay(display));
2558     Window rootReturn, childReturn;
2559     int rootX, rootY, winX, winY;
2560     unsigned int maskReturn;
2561
2562     XQueryPointer (display,
2563                    rootWindow,
2564                    &rootReturn,
2565                    &childReturn,
2566                    &rootX, &rootY, &winX, &winY, &maskReturn);
2567     return wxPoint(rootX, rootY);
2568 }
2569
2570
2571 // ----------------------------------------------------------------------------
2572 // wxNoOptimize: switch off size optimization
2573 // ----------------------------------------------------------------------------
2574
2575 int wxNoOptimize::ms_count = 0;
2576