src/motif/window.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        windows.cpp
   3 // Purpose:     wxWindow
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "window.h"
  22 #endif
  23
  24 #include "wx/setup.h"
  25 #include "wx/menu.h"
  26 #include "wx/dc.h"
  27 #include "wx/dcclient.h"
  28 #include "wx/utils.h"
  29 #include "wx/app.h"
  30 #include "wx/panel.h"
  31 #include "wx/layout.h"
  32 #include "wx/dialog.h"
  33 #include "wx/listbox.h"
  34 #include "wx/button.h"
  35 #include "wx/settings.h"
  36 #include "wx/msgdlg.h"
  37 #include "wx/frame.h"
  38 #include "wx/scrolwin.h"
  39 #include "wx/module.h"
  40 #include "wx/menuitem.h"
  41 #include "wx/log.h"
  42
  43 #include "wx/listimpl.cpp"
  44
  45 #if  wxUSE_DRAG_AND_DROP
  46     #include "wx/dnd.h"
  47 #endif
  48
  49 #include <Xm/Xm.h>
  50
  51 #include <Xm/DrawingA.h>
  52 #include <Xm/ScrolledW.h>
  53 #include <Xm/ScrollBar.h>
  54 #include <Xm/Frame.h>
  55 #include <Xm/Label.h>
  56 #include <Xm/RowColumn.h>           // for XmMenuPosition
  57
  58 #include "wx/motif/private.h"
  59
  60 #include <string.h>
  61
  62 // ----------------------------------------------------------------------------
  63 // constants
  64 // ----------------------------------------------------------------------------
  65
  66 static const int SCROLL_MARGIN = 4;
  67
  68 // ----------------------------------------------------------------------------
  69 // global variables for this module
  70 // ----------------------------------------------------------------------------
  71
  72 extern wxHashTable *wxWidgetHashTable;
  73
  74 // ----------------------------------------------------------------------------
  75 // private functions
  76 // ----------------------------------------------------------------------------
  77
  78 static void wxCanvasRepaintProc(Widget, XtPointer, XmDrawingAreaCallbackStruct * cbs);
  79 static void wxCanvasInputEvent(Widget drawingArea, XtPointer data, XmDrawingAreaCallbackStruct * cbs);
  80 static void wxCanvasMotionEvent(Widget, XButtonEvent * event);
  81 static void wxCanvasEnterLeave(Widget drawingArea, XtPointer clientData, XCrossingEvent * event);
  82 static void wxScrollBarCallback(Widget widget, XtPointer clientData,
  83                                 XmScrollBarCallbackStruct *cbs);
  84 static void wxPanelItemEventHandler(Widget    wid,
  85                                     XtPointer client_data,
  86                                     XEvent*   event,
  87                                     Boolean  *continueToDispatch);
  88
  89 // unused for now
  90 #if 0
  91
  92 // Helper function for 16-bit fonts
  93 static int str16len(const char *s)
  94 {
  95     int count = 0;
  96
  97     while (s[0] && s[1]) {
  98         count++;
  99         s += 2;
 100     }
 101
 102     return count;
 103 }
 104
 105 #endif // 0
 106
 107 // ----------------------------------------------------------------------------
 108 // macros
 109 // ----------------------------------------------------------------------------
 110
 111 #define event_left_is_down(x) ((x)->xbutton.state & Button1Mask)
 112 #define event_middle_is_down(x) ((x)->xbutton.state & Button2Mask)
 113 #define event_right_is_down(x) ((x)->xbutton.state & Button3Mask)
 114
 115 // ----------------------------------------------------------------------------
 116 // event tables
 117 // ----------------------------------------------------------------------------
 118
 119 #if !USE_SHARED_LIBRARY
 120     IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxWindowBase)
 121
 122     BEGIN_EVENT_TABLE(wxWindow, wxWindowBase)
 123         EVT_SYS_COLOUR_CHANGED(wxWindow::OnSysColourChanged)
 124         EVT_IDLE(wxWindow::OnIdle)
 125     END_EVENT_TABLE()
 126 #endif // USE_SHARED_LIBRARY
 127
 128 // ============================================================================
 129 // implementation
 130 // ============================================================================
 131
 132 // ----------------------------------------------------------------------------
 133 // list types
 134 // ----------------------------------------------------------------------------
 135
 136 WX_DEFINE_LIST(wxRectList);
 137
 138 // ----------------------------------------------------------------------------
 139 // helper functions
 140 // ----------------------------------------------------------------------------
 141
 142 void wxWindow::UnmanageAndDestroy(WXWidget widget)
 143 {
 144     Widget w = (Widget)widget;
 145     if ( w )
 146     {
 147         XtUnmanageChild(w);
 148         XtDestroyWidget(w);
 149     }
 150 }
 151
 152 bool wxWindow::MapOrUnmap(WXWidget widget, bool map)
 153 {
 154     Widget w = (Widget)widget;
 155     if ( !w )
 156         return FALSE;
 157
 158     if ( map )
 159         XtMapWidget(w);
 160     else
 161         XtUnmapWidget(w);
 162
 163     return TRUE;
 164 }
 165
 166 // ----------------------------------------------------------------------------
 167 // constructors
 168 // ----------------------------------------------------------------------------
 169
 170 void wxWindow::Init()
 171 {
 172     // generic initializations first
 173     InitBase();
 174
 175     // Motif-specific
 176     m_needsRefresh = TRUE;
 177     m_mainWidget = (WXWidget) 0;
 178
 179     m_button1Pressed =
 180     m_button2Pressed =
 181     m_button3Pressed = FALSE;
 182
 183     m_winCaptured = FALSE;
 184
 185     m_isShown = TRUE;
 186     m_isBeingDeleted = FALSE;
 187
 188     m_hScrollBar =
 189     m_vScrollBar =
 190     m_borderWidget =
 191     m_scrolledWindow =
 192     m_drawingArea = (WXWidget) 0;
 193
 194     m_hScroll =
 195     m_vScroll = FALSE;
 196
 197     m_scrollPosX =
 198     m_scrollPosY = 0;
 199
 200     m_backingPixmap = (WXPixmap) 0;
 201     m_pixmapWidth =
 202     m_pixmapHeight = 0;
 203
 204     m_pixmapOffsetX =
 205     m_pixmapOffsetY = 0;
 206
 207     m_lastTS = 0;
 208     m_lastButton = 0;
 209     m_canAddEventHandler = FALSE;
 210 }
 211
 212 // real construction (Init() must have been called before!)
 213 bool wxWindow::Create(wxWindow *parent, wxWindowID id,
 214                       const wxPoint& pos,
 215                       const wxSize& size,
 216                       long style,
 217                       const wxString& name)
 218 {
 219     wxCHECK_MSG( parent, FALSE, "can't create wxWindow without parent" );
 220
 221     CreateBase(parent, id, pos, size, style, wxDefaultValidator, name);
 222
 223     parent->AddChild(this);
 224
 225     m_backgroundColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE);
 226     m_foregroundColour = *wxBLACK;
 227
 228     //// TODO: we should probably optimize by only creating a
 229     //// a drawing area if we have one or more scrollbars (wxVSCROLL/wxHSCROLL).
 230     //// But for now, let's simplify things by always creating the
 231     //// drawing area, since otherwise the translations are different.
 232
 233     // New translations for getting mouse motion feedback
 234     static const String translations =
 235 "<Btn1Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 236 <Btn2Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 237 <Btn3Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 238 <BtnMotion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 239 <Btn1Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 240 <Btn2Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 241 <Btn3Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 242 <Btn1Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 243 <Btn2Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 244 <Btn3Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 245 <Motion>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 246 <EnterWindow>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 247 <LeaveWindow>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 248 <Key>: DrawingAreaInput()";
 249
 250     XtActionsRec actions[1];
 251     actions[0].string = "wxCanvasMotionEvent";
 252     actions[0].proc = (XtActionProc) wxCanvasMotionEvent;
 253     XtAppAddActions ((XtAppContext) wxTheApp->GetAppContext(), actions, 1);
 254
 255     Widget parentWidget = (Widget) parent->GetClientWidget();
 256     if (style & wxBORDER)
 257     {
 258         m_borderWidget = (WXWidget)XtVaCreateManagedWidget
 259                                    (
 260                                     "canvasBorder",
 261                                     xmFrameWidgetClass, parentWidget,
 262                                     XmNshadowType, XmSHADOW_IN,
 263                                     NULL
 264                                    );
 265     }
 266
 267     m_scrolledWindow = (WXWidget)XtVaCreateManagedWidget
 268                                  (
 269                                   "scrolledWindow",
 270                                   xmScrolledWindowWidgetClass,
 271                                   m_borderWidget ? (Widget) m_borderWidget
 272                                                  : parentWidget,
 273                                   XmNresizePolicy, XmRESIZE_NONE,
 274                                   XmNspacing, 0,
 275                                   XmNscrollingPolicy, XmAPPLICATION_DEFINED,
 276                                   //XmNscrollBarDisplayPolicy, XmAS_NEEDED,
 277                                   NULL
 278                                  );
 279
 280     XtTranslations ptr = XtParseTranslationTable(translations);
 281     m_drawingArea = (WXWidget)XtVaCreateWidget
 282                               (
 283                                name,
 284                                xmDrawingAreaWidgetClass, (Widget) m_scrolledWindow,
 285                                XmNunitType, XmPIXELS,
 286                                // XmNresizePolicy, XmRESIZE_ANY,
 287                                XmNresizePolicy, XmRESIZE_NONE,
 288                                XmNmarginHeight, 0,
 289                                XmNmarginWidth, 0,
 290                                XmNtranslations, ptr,
 291                                NULL
 292                               );
 293     XtFree((char *) ptr);
 294
 295 #if 0
 296     if (GetWindowStyleFlag() & wxOVERRIDE_KEY_TRANSLATIONS)
 297     {
 298         ptr = XtParseTranslationTable ("<Key>: DrawingAreaInput()");
 299         XtOverrideTranslations ((Widget) m_drawingArea, ptr);
 300         XtFree ((char *) ptr);
 301     }
 302 #endif // 0
 303
 304     wxAddWindowToTable((Widget) m_drawingArea, this);
 305     wxAddWindowToTable((Widget) m_scrolledWindow, this);
 306
 307     // This order is very important in Motif 1.2.1
 308     XtRealizeWidget ((Widget) m_scrolledWindow);
 309     XtRealizeWidget ((Widget) m_drawingArea);
 310     XtManageChild ((Widget) m_drawingArea);
 311
 312     ptr = XtParseTranslationTable("<Configure>: resize()");
 313     XtOverrideTranslations((Widget) m_drawingArea, ptr);
 314     XtFree ((char *) ptr);
 315
 316     XtAddCallback ((Widget) m_drawingArea, XmNexposeCallback, (XtCallbackProc) wxCanvasRepaintProc, (XtPointer) this);
 317     XtAddCallback ((Widget) m_drawingArea, XmNinputCallback, (XtCallbackProc) wxCanvasInputEvent, (XtPointer) this);
 318
 319     // TODO?
 320 #if 0
 321     display = XtDisplay (scrolledWindow);
 322     xwindow = XtWindow (drawingArea);
 323 #endif // 0
 324
 325     XtAddEventHandler(
 326                       (Widget)m_drawingArea,
 327                        PointerMotionHintMask | EnterWindowMask |
 328                        LeaveWindowMask | FocusChangeMask,
 329                        False,
 330                        (XtEventHandler) wxCanvasEnterLeave,
 331                        (XtPointer) this
 332                      );
 333
 334     // Scrolled widget needs to have its colour changed or we get a little blue
 335     // square where the scrollbars abutt
 336     wxColour backgroundColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE);
 337     DoChangeBackgroundColour(m_scrolledWindow, backgroundColour, TRUE);
 338     DoChangeBackgroundColour(m_drawingArea, backgroundColour, TRUE);
 339
 340     XmScrolledWindowSetAreas(
 341                              (Widget)m_scrolledWindow,
 342                              (Widget) 0, (Widget) 0,
 343                              (Widget) m_drawingArea);
 344
 345 #if 0
 346     if (m_hScrollBar)
 347         XtRealizeWidget ((Widget) m_hScrollBar);
 348     if (m_vScrollBar)
 349         XtRealizeWidget ((Widget) m_vScrollBar);
 350 #endif // 0
 351
 352     // Without this, the cursor may not be restored properly (e.g. in splitter
 353     // sample).
 354     SetCursor(*wxSTANDARD_CURSOR);
 355     SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
 356     SetSize(pos.x, pos.y, size.x, size.y);
 357
 358     return TRUE;
 359 }
 360
 361 // Destructor
 362 wxWindow::~wxWindow()
 363 {
 364     m_isBeingDeleted = TRUE;
 365
 366     // Motif-specific actions first
 367     WXWidget wMain = GetMainWidget();
 368     if ( wMain )
 369     {
 370         // Removes event handlers
 371         DetachWidget(wMain);
 372     }
 373
 374     ClearUpdateRects();
 375
 376     if ( m_parent )
 377         m_parent->RemoveChild( this );
 378
 379     // If m_drawingArea, we're a fully-fledged window with drawing area,
 380     // scrollbars etc. (what wxCanvas used to be)
 381     if ( m_drawingArea )
 382     {
 383         // Destroy children before destroying self
 384         DestroyChildren();
 385
 386         if (m_backingPixmap)
 387             XFreePixmap (XtDisplay ((Widget) GetMainWidget()), (Pixmap) m_backingPixmap);
 388
 389         Widget w = (Widget) m_drawingArea;
 390         wxDeleteWindowFromTable(w);
 391
 392         if (w)
 393         {
 394             XtDestroyWidget(w);
 395         }
 396
 397         m_mainWidget = (WXWidget) 0;
 398
 399         // Only if we're _really_ a canvas (not a dialog box/panel)
 400         if (m_scrolledWindow)
 401         {
 402             wxDeleteWindowFromTable((Widget) m_scrolledWindow);
 403         }
 404
 405         if (m_hScrollBar)
 406         {
 407             wxDeleteWindowFromTable((Widget) m_hScrollBar);
 408         }
 409         if (m_vScrollBar)
 410         {
 411             wxDeleteWindowFromTable((Widget) m_vScrollBar);
 412         }
 413
 414         UnmanageAndDestroy(m_hScrollBar);
 415         UnmanageAndDestroy(m_vScrollBar);
 416         UnmanageAndDestroy(m_scrolledWindow);
 417
 418         if (m_borderWidget)
 419         {
 420             XtDestroyWidget ((Widget) m_borderWidget);
 421             m_borderWidget = (WXWidget) 0;
 422         }
 423     }
 424
 425     // Destroy the window
 426     if (GetMainWidget())
 427     {
 428         // If this line (XtDestroyWidget) causes a crash, you may comment it out.
 429         // Child widgets will get destroyed automatically when a frame
 430         // or dialog is destroyed, but before that you may get some memory
 431         // leaks and potential layout problems if you delete and then add
 432         // child windows.
 433         XtDestroyWidget((Widget) GetMainWidget());
 434         SetMainWidget((WXWidget) NULL);
 435     }
 436 }
 437
 438 // ----------------------------------------------------------------------------
 439 // scrollbar management
 440 // ----------------------------------------------------------------------------
 441
 442 // Helper function
 443 void wxWindow::CreateScrollbar(wxOrientation orientation)
 444 {
 445     wxCHECK_RET( m_drawingArea, "this window can't have scrollbars" );
 446
 447     XtVaSetValues((Widget) m_scrolledWindow, XmNresizePolicy, XmRESIZE_NONE, NULL);
 448
 449     // Add scrollbars if required
 450     if (orientation == wxHORIZONTAL)
 451     {
 452         Widget hScrollBar = XtVaCreateManagedWidget ("hsb",
 453             xmScrollBarWidgetClass, (Widget) m_scrolledWindow,
 454             XmNorientation, XmHORIZONTAL,
 455             NULL);
 456         //      XtAddCallback (hScrollBar, XmNvalueChangedCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 457         XtAddCallback (hScrollBar, XmNdragCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 458         XtAddCallback (hScrollBar, XmNincrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 459         XtAddCallback (hScrollBar, XmNdecrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 460         XtAddCallback (hScrollBar, XmNpageIncrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 461         XtAddCallback (hScrollBar, XmNpageDecrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 462         XtAddCallback (hScrollBar, XmNtoTopCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 463         XtAddCallback (hScrollBar, XmNtoBottomCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 464
 465         XtVaSetValues (hScrollBar,
 466             XmNincrement, 1,
 467             XmNvalue, 0,
 468             NULL);
 469
 470         m_hScrollBar = (WXWidget) hScrollBar;
 471
 472         wxColour backgroundColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE);
 473         DoChangeBackgroundColour(m_hScrollBar, backgroundColour, TRUE);
 474
 475         XtRealizeWidget(hScrollBar);
 476
 477         XtVaSetValues((Widget) m_scrolledWindow,
 478             XmNhorizontalScrollBar, (Widget) m_hScrollBar,
 479             NULL);
 480
 481         m_hScroll = TRUE;
 482
 483         wxAddWindowToTable( hScrollBar, this );
 484     }
 485
 486     if (orientation == wxVERTICAL)
 487     {
 488         Widget vScrollBar = XtVaCreateManagedWidget ("vsb",
 489             xmScrollBarWidgetClass, (Widget) m_scrolledWindow,
 490             XmNorientation, XmVERTICAL,
 491             NULL);
 492         //      XtAddCallback (vScrollBar, XmNvalueChangedCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 493         XtAddCallback (vScrollBar, XmNdragCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 494         XtAddCallback (vScrollBar, XmNincrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 495         XtAddCallback (vScrollBar, XmNdecrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 496         XtAddCallback (vScrollBar, XmNpageIncrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 497         XtAddCallback (vScrollBar, XmNpageDecrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 498         XtAddCallback (vScrollBar, XmNtoTopCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 499         XtAddCallback (vScrollBar, XmNtoBottomCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 500
 501         XtVaSetValues (vScrollBar,
 502             XmNincrement, 1,
 503             XmNvalue, 0,
 504             NULL);
 505
 506         m_vScrollBar = (WXWidget) vScrollBar;
 507         wxColour backgroundColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE);
 508         DoChangeBackgroundColour(m_vScrollBar, backgroundColour, TRUE);
 509
 510         XtRealizeWidget(vScrollBar);
 511
 512         XtVaSetValues((Widget) m_scrolledWindow,
 513             XmNverticalScrollBar, (Widget) m_vScrollBar,
 514             NULL);
 515
 516         m_vScroll = TRUE;
 517
 518         wxAddWindowToTable( vScrollBar, this );
 519     }
 520
 521     XtVaSetValues((Widget) m_scrolledWindow, XmNresizePolicy, XmRESIZE_ANY, NULL);
 522 }
 523
 524 void wxWindow::DestroyScrollbar(wxOrientation orientation)
 525 {
 526     wxCHECK_RET( m_drawingArea, "this window can't have scrollbars" );
 527
 528     XtVaSetValues((Widget) m_scrolledWindow, XmNresizePolicy, XmRESIZE_NONE, NULL);
 529     // Add scrollbars if required
 530     if (orientation == wxHORIZONTAL)
 531     {
 532         if (m_hScrollBar)
 533         {
 534             wxDeleteWindowFromTable((Widget)m_hScrollBar);
 535             XtDestroyWidget((Widget) m_hScrollBar);
 536         }
 537         m_hScrollBar = (WXWidget) 0;
 538         m_hScroll = FALSE;
 539
 540         XtVaSetValues((Widget) m_scrolledWindow,
 541             XmNhorizontalScrollBar, (Widget) 0,
 542             NULL);
 543
 544     }
 545
 546     if (orientation == wxVERTICAL)
 547     {
 548         if (m_vScrollBar)
 549         {
 550             wxDeleteWindowFromTable((Widget)m_vScrollBar);
 551             XtDestroyWidget((Widget) m_vScrollBar);
 552         }
 553         m_vScrollBar = (WXWidget) 0;
 554         m_vScroll = TRUE;
 555
 556         XtVaSetValues((Widget) m_scrolledWindow,
 557             XmNverticalScrollBar, (Widget) 0,
 558             NULL);
 559
 560     }
 561     XtVaSetValues((Widget) m_scrolledWindow, XmNresizePolicy, XmRESIZE_ANY, NULL);
 562 }
 563
 564 // ---------------------------------------------------------------------------
 565 // basic operations
 566 // ---------------------------------------------------------------------------
 567
 568 void wxWindow::SetFocus()
 569 {
 570     Widget wMain = (Widget) GetMainWidget();
 571     XmProcessTraversal(wMain, XmTRAVERSE_CURRENT);
 572     XmProcessTraversal((Widget) GetMainWidget(), XmTRAVERSE_CURRENT);
 573 }
 574
 575 // Get the window with the focus
 576 wxWindow *wxWindowBase::FindFocus()
 577 {
 578     // TODO Problems:
 579     // (1) Can there be multiple focussed widgets in an application?
 580     // In which case we need to find the top-level window that's
 581     // currently active.
 582     // (2) The widget with the focus may not be in the widget table
 583     // depending on which widgets I put in the table
 584     wxWindow *winFocus = (wxWindow *)NULL;
 585     for ( wxWindowList::Node *node = wxTopLevelWindows.GetFirst();
 586           node;
 587           node = node->GetNext() )
 588     {
 589         wxWindow *win = node->GetData();
 590
 591         Widget w = XmGetFocusWidget ((Widget) win->GetTopWidget());
 592
 593         if (w != (Widget) NULL)
 594         {
 595             winFocus = wxGetWindowFromTable(w);
 596             if ( winFocus )
 597                 break;
 598         }
 599     }
 600
 601     return winFocus;
 602 }
 603
 604 bool wxWindow::Enable(bool enable)
 605 {
 606     if ( !wxWindowBase::Enable(enable) )
 607         return FALSE;
 608
 609     Widget wMain = (Widget)GetMainWidget();
 610     if ( wMain )
 611     {
 612         XtSetSensitive(wMain, enable);
 613         XmUpdateDisplay(wMain);
 614     }
 615
 616     return TRUE;
 617 }
 618
 619 bool wxWindow::Show(bool show)
 620 {
 621     if ( !wxWindowBase::Show(show) )
 622         return FALSE;
 623
 624     if (m_borderWidget || m_scrolledWindow)
 625     {
 626         MapOrUnmap(m_drawingArea, show);
 627         MapOrUnmap(m_borderWidget ? m_borderWidget : m_scrolledWindow, show);
 628     }
 629     else
 630     {
 631         if ( !MapOrUnmap(GetTopWidget(), show) )
 632             MapOrUnmap(GetMainWidget(), show);
 633     }
 634
 635 #if 0
 636     Window xwin = (Window) GetXWindow();
 637     Display *xdisp = (Display*) GetXDisplay();
 638     if (show)
 639         XMapWindow(xdisp, xwin);
 640     else
 641         XUnmapWindow(xdisp, xwin);
 642 #endif
 643
 644     return TRUE;
 645 }
 646
 647 // Raise the window to the top of the Z order
 648 void wxWindow::Raise()
 649 {
 650     Widget wTop = (Widget) GetTopWidget();
 651     Window window = XtWindow(wTop);
 652     XRaiseWindow(XtDisplay(wTop), window);
 653 }
 654
 655 // Lower the window to the bottom of the Z order
 656 void wxWindow::Lower()
 657 {
 658     Widget wTop = (Widget) GetTopWidget();
 659     Window window = XtWindow(wTop);
 660     XLowerWindow(XtDisplay(wTop), window);
 661 }
 662
 663 void wxWindow::SetTitle(const wxString& title)
 664 {
 665     XtVaSetValues((Widget)GetMainWidget(), XmNtitle, title.c_str(), NULL);
 666 }
 667
 668 wxString wxWindow::GetTitle() const
 669 {
 670     char *title;
 671     XtVaGetValues((Widget)GetMainWidget(), XmNtitle, &title, NULL);
 672
 673     return wxString(title);
 674 }
 675
 676 void wxWindow::CaptureMouse()
 677 {
 678     if ( m_winCaptured )
 679         return;
 680
 681     Widget wMain = (Widget)GetMainWidget();
 682     if ( wMain )
 683         XtAddGrab(wMain, TRUE, FALSE);
 684
 685     m_winCaptured = TRUE;
 686 }
 687
 688 void wxWindow::ReleaseMouse()
 689 {
 690     if ( !m_winCaptured )
 691         return;
 692
 693     Widget wMain = (Widget)GetMainWidget();
 694     if ( wMain )
 695         XtRemoveGrab(wMain);
 696
 697     m_winCaptured = FALSE;
 698 }
 699
 700 bool wxWindow::SetFont(const wxFont& font)
 701 {
 702     if ( !wxWindowBase::SetFont(font) )
 703     {
 704         // nothing to do
 705         return FALSE;
 706     }
 707
 708     ChangeFont();
 709
 710     return TRUE;
 711 }
 712
 713 bool wxWindow::SetCursor(const wxCursor& cursor)
 714 {
 715     if ( !wxWindowBase::SetCursor(cursor) )
 716     {
 717         // no change
 718         return FALSE;
 719     }
 720
 721     wxASSERT_MSG( m_cursor.Ok(),
 722                   wxT("cursor must be valid after call to the base version"));
 723
 724     WXDisplay *dpy = GetXDisplay();
 725     WXCursor x_cursor = m_cursor.GetXCursor(dpy);
 726
 727     Widget w = (Widget) GetMainWidget();
 728     Window win = XtWindow(w);
 729     XDefineCursor((Display*) dpy, win, (Cursor) x_cursor);
 730
 731     return TRUE;
 732 }
 733
 734 // Coordinates relative to the window
 735 void wxWindow::WarpPointer (int x, int y)
 736 {
 737     Widget wClient = (Widget)GetClientWidget();
 738
 739     XWarpPointer(XtDisplay(wClient), None, XtWindow(wClient), 0, 0, 0, 0, x, y);
 740 }
 741
 742 // ---------------------------------------------------------------------------
 743 // scrolling stuff
 744 // ---------------------------------------------------------------------------
 745
 746 int wxWindow::GetScrollPos(int orient) const
 747 {
 748     if (orient == wxHORIZONTAL)
 749         return m_scrollPosX;
 750     else
 751         return m_scrollPosY;
 752
 753 #if 0
 754     Widget scrollBar = (Widget) ((orient == wxHORIZONTAL) ? m_hScrollBar : m_vScrollBar);
 755     if (scrollBar)
 756     {
 757         int pos;
 758         XtVaGetValues(scrollBar, XmNvalue, &pos, NULL);
 759         return pos;
 760     }
 761     else
 762         return 0;
 763 #endif // 0
 764 }
 765
 766 // This now returns the whole range, not just the number of positions that we
 767 // can scroll.
 768 int wxWindow::GetScrollRange(int orient) const
 769 {
 770     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 771     wxCHECK_MSG( scrollBar, 0, "no such scrollbar" );
 772
 773     int range;
 774     XtVaGetValues(scrollBar, XmNmaximum, &range, NULL);
 775     return range;
 776 }
 777
 778 int wxWindow::GetScrollThumb(int orient) const
 779 {
 780     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 781     wxCHECK_MSG( scrollBar, 0, "no such scrollbar" );
 782
 783     int thumb;
 784     XtVaGetValues(scrollBar, XmNsliderSize, &thumb, NULL);
 785     return thumb;
 786 }
 787
 788 void wxWindow::SetScrollPos(int orient, int pos, bool WXUNUSED(refresh))
 789 {
 790     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 791
 792     if ( scrollBar )
 793     {
 794         XtVaSetValues (scrollBar, XmNvalue, pos, NULL);
 795     }
 796
 797     SetInternalScrollPos((wxOrientation)orient, pos);
 798 }
 799
 800 // New function that will replace some of the above.
 801 void wxWindow::SetScrollbar(int orient, int pos, int thumbVisible,
 802                             int range, bool WXUNUSED(refresh))
 803 {
 804     int oldW, oldH;
 805     GetSize(& oldW, & oldH);
 806
 807     if (range == 0)
 808         range = 1;
 809     if (thumbVisible == 0)
 810         thumbVisible = 1;
 811
 812     if (thumbVisible > range)
 813         thumbVisible = range;
 814
 815     // Save the old state to see if it changed
 816     WXWidget oldScrollBar = GetScrollbar((wxOrientation)orient);
 817
 818     if (orient == wxHORIZONTAL)
 819     {
 820         if (thumbVisible == range)
 821         {
 822             if (m_hScrollBar)
 823                 DestroyScrollbar(wxHORIZONTAL);
 824         }
 825         else
 826         {
 827             if (!m_hScrollBar)
 828                 CreateScrollbar(wxHORIZONTAL);
 829         }
 830     }
 831     if (orient == wxVERTICAL)
 832     {
 833         if (thumbVisible == range)
 834         {
 835             if (m_vScrollBar)
 836                 DestroyScrollbar(wxVERTICAL);
 837         }
 838         else
 839         {
 840             if (!m_vScrollBar)
 841                 CreateScrollbar(wxVERTICAL);
 842         }
 843     }
 844     WXWidget newScrollBar =  GetScrollbar((wxOrientation)orient);
 845
 846     if (oldScrollBar != newScrollBar)
 847     {
 848         // This is important! Without it, scrollbars misbehave badly.
 849         XtUnrealizeWidget((Widget) m_scrolledWindow);
 850         XmScrolledWindowSetAreas ((Widget) m_scrolledWindow, (Widget) m_hScrollBar, (Widget) m_vScrollBar, (Widget) m_drawingArea);
 851         XtRealizeWidget((Widget) m_scrolledWindow);
 852         XtManageChild((Widget) m_scrolledWindow);
 853     }
 854
 855     if (newScrollBar)
 856     {
 857         XtVaSetValues((Widget) newScrollBar,
 858         XmNvalue, pos,
 859         XmNminimum, 0,
 860         XmNmaximum, range,
 861         XmNsliderSize, thumbVisible,
 862         NULL);
 863     }
 864
 865     SetInternalScrollPos((wxOrientation)orient, pos);
 866
 867     int newW, newH;
 868     GetSize(& newW, & newH);
 869
 870     // Adjusting scrollbars can resize the canvas accidentally
 871     if (newW != oldW || newH != oldH)
 872         SetSize(-1, -1, oldW, oldH);
 873 }
 874
 875 // Does a physical scroll
 876 void wxWindow::ScrollWindow(int dx, int dy, const wxRect *rect)
 877 {
 878     int x, y, w, h;
 879     if (rect)
 880     {
 881         // Use specified rectangle
 882         x = rect->x; y = rect->y; w = rect->width; h = rect->height;
 883     }
 884     else
 885     {
 886         // Use whole client area
 887         x = 0; y = 0;
 888         GetClientSize(& w, & h);
 889     }
 890
 891     int x1 = (dx >= 0) ? x : x - dx;
 892     int y1 = (dy >= 0) ? y : y - dy;
 893     int w1 = w - abs(dx);
 894     int h1 = h - abs(dy);
 895     int x2 = (dx >= 0) ? x + dx : x;
 896     int y2 = (dy >= 0) ? y + dy : y;
 897
 898     wxClientDC dc(this);
 899
 900     dc.SetLogicalFunction (wxCOPY);
 901
 902     Widget widget = (Widget) GetMainWidget();
 903     Window window = XtWindow(widget);
 904     Display* display = XtDisplay(widget);
 905
 906     XCopyArea(display, window, window, (GC) dc.GetGC(),
 907               x1, y1, w1, h1, x2, y2);
 908
 909     dc.SetAutoSetting(TRUE);
 910     wxBrush brush(GetBackgroundColour(), wxSOLID);
 911     dc.SetBrush(brush); // FIXME: needed?
 912
 913     // We'll add rectangles to the list of update rectangles according to which
 914     // bits we've exposed.
 915     wxList updateRects;
 916
 917     if (dx > 0)
 918     {
 919         wxRect *rect = new wxRect;
 920         rect->x = x;
 921         rect->y = y;
 922         rect->width = dx;
 923         rect->height = h;
 924
 925         XFillRectangle(display, window,
 926             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
 927
 928         rect->x = rect->x;
 929         rect->y = rect->y;
 930         rect->width = rect->width;
 931         rect->height = rect->height;
 932
 933         updateRects.Append((wxObject*) rect);
 934     }
 935     else if (dx < 0)
 936     {
 937         wxRect *rect = new wxRect;
 938
 939         rect->x = x + w + dx;
 940         rect->y = y;
 941         rect->width = -dx;
 942         rect->height = h;
 943
 944         XFillRectangle(display, window,
 945             (GC) dc.GetGC(), rect->x, rect->y, rect->width,
 946             rect->height);
 947
 948         rect->x = rect->x;
 949         rect->y = rect->y;
 950         rect->width = rect->width;
 951         rect->height = rect->height;
 952
 953         updateRects.Append((wxObject*) rect);
 954     }
 955     if (dy > 0)
 956     {
 957         wxRect *rect = new wxRect;
 958
 959         rect->x = x;
 960         rect->y = y;
 961         rect->width = w;
 962         rect->height = dy;
 963
 964         XFillRectangle(display, window,
 965             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
 966
 967         rect->x = rect->x;
 968         rect->y = rect->y;
 969         rect->width = rect->width;
 970         rect->height = rect->height;
 971
 972         updateRects.Append((wxObject*) rect);
 973     }
 974     else if (dy < 0)
 975     {
 976         wxRect *rect = new wxRect;
 977
 978         rect->x = x;
 979         rect->y = y + h + dy;
 980         rect->width = w;
 981         rect->height = -dy;
 982
 983         XFillRectangle(display, window,
 984             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
 985
 986         rect->x = rect->x;
 987         rect->y = rect->y;
 988         rect->width = rect->width;
 989         rect->height = rect->height;
 990
 991         updateRects.Append((wxObject*) rect);
 992     }
 993     dc.SetBrush(wxNullBrush);
 994
 995     // Now send expose events
 996
 997     wxNode* node = updateRects.First();
 998     while (node)
 999     {
1000         wxRect* rect = (wxRect*) node->Data();
1001         XExposeEvent event;
1002
1003         event.type = Expose;
1004         event.display = display;
1005         event.send_event = True;
1006         event.window = window;
1007
1008         event.x = rect->x;
1009         event.y = rect->y;
1010         event.width = rect->width;
1011         event.height = rect->height;
1012
1013         event.count = 0;
1014
1015         XSendEvent(display, window, False, ExposureMask, (XEvent *)&event);
1016
1017         node = node->Next();
1018
1019     }
1020
1021     // Delete the update rects
1022     node = updateRects.First();
1023     while (node)
1024     {
1025         wxRect* rect = (wxRect*) node->Data();
1026         delete rect;
1027         node = node->Next();
1028     }
1029
1030     XmUpdateDisplay((Widget) GetMainWidget());
1031 }
1032
1033 // ---------------------------------------------------------------------------
1034 // drag and drop
1035 // ---------------------------------------------------------------------------
1036
1037 #if wxUSE_DRAG_AND_DROP
1038
1039 void wxWindow::SetDropTarget(wxDropTarget * WXUNUSED(pDropTarget))
1040 {
1041     // TODO
1042 }
1043
1044 #endif
1045
1046 // Old style file-manager drag&drop
1047 void wxWindow::DragAcceptFiles(bool WXUNUSED(accept))
1048 {
1049     // TODO
1050 }
1051
1052 // ----------------------------------------------------------------------------
1053 // tooltips
1054 // ----------------------------------------------------------------------------
1055
1056 #if wxUSE_TOOLTIPS
1057
1058 void wxWindow::DoSetToolTip(wxToolTip * WXUNUSED(tooltip))
1059 {
1060     // TODO
1061 }
1062
1063 #endif // wxUSE_TOOLTIPS
1064
1065 // ----------------------------------------------------------------------------
1066 // popup menus
1067 // ----------------------------------------------------------------------------
1068
1069 bool wxWindow::DoPopupMenu(wxMenu *menu, int x, int y)
1070 {
1071     Widget widget = (Widget) GetMainWidget();
1072
1073     /* The menuId field seems to be usused, so we'll use it to
1074     indicate whether a menu is popped up or not:
1075     0: Not currently created as a popup
1076     -1: Created as a popup, but not active
1077     1: Active popup.
1078     */
1079
1080     if (menu->GetParent() && (menu->GetId() != -1))
1081         return FALSE;
1082
1083     if (menu->GetMainWidget()) {
1084         menu->DestroyMenu(TRUE);
1085     }
1086
1087     menu->SetId(1); /* Mark as popped-up */
1088     menu->CreateMenu(NULL, widget, menu);
1089     menu->SetInvokingWindow(this);
1090
1091     menu->UpdateUI();
1092
1093     //  menu->SetParent(parent);
1094     //  parent->children->Append(menu);  // Store menu for later deletion
1095
1096     Widget menuWidget = (Widget) menu->GetMainWidget();
1097
1098     int rootX = 0;
1099     int rootY = 0;
1100
1101     int deviceX = x;
1102     int deviceY = y;
1103     /*
1104     if (this->IsKindOf(CLASSINFO(wxCanvas)))
1105     {
1106     wxCanvas *canvas = (wxCanvas *) this;
1107     deviceX = canvas->GetDC ()->LogicalToDeviceX (x);
1108     deviceY = canvas->GetDC ()->LogicalToDeviceY (y);
1109     }
1110     */
1111
1112     Display *display = XtDisplay (widget);
1113     Window rootWindow = RootWindowOfScreen (XtScreen((Widget)widget));
1114     Window thisWindow = XtWindow (widget);
1115     Window childWindow;
1116     XTranslateCoordinates (display, thisWindow, rootWindow, (int) deviceX, (int) deviceY,
1117         &rootX, &rootY, &childWindow);
1118
1119     XButtonPressedEvent event;
1120     event.type = ButtonPress;
1121     event.button = 1;
1122
1123     event.x = deviceX;
1124     event.y = deviceY;
1125
1126     event.x_root = rootX;
1127     event.y_root = rootY;
1128
1129     XmMenuPosition (menuWidget, &event);
1130     XtManageChild (menuWidget);
1131
1132     return TRUE;
1133 }
1134
1135 // ---------------------------------------------------------------------------
1136 // moving and resizing
1137 // ---------------------------------------------------------------------------
1138
1139 bool wxWindow::PreResize()
1140 {
1141     return TRUE;
1142 }
1143
1144 // Get total size
1145 void wxWindow::DoGetSize(int *x, int *y) const
1146 {
1147     if (m_drawingArea)
1148     {
1149         CanvasGetSize(x, y);
1150         return;
1151     }
1152
1153     Widget widget = (Widget) GetTopWidget();
1154     Dimension xx, yy;
1155     XtVaGetValues(widget, XmNwidth, &xx, XmNheight, &yy, NULL);
1156     *x = xx; *y = yy;
1157 }
1158
1159 void wxWindow::DoGetPosition(int *x, int *y) const
1160 {
1161     if (m_drawingArea)
1162     {
1163         CanvasGetPosition(x, y);
1164         return;
1165     }
1166     Widget widget = (Widget) GetTopWidget();
1167     Position xx, yy;
1168     XtVaGetValues(widget, XmNx, &xx, XmNy, &yy, NULL);
1169
1170     // We may be faking the client origin. So a window that's really at (0, 30)
1171     // may appear (to wxWin apps) to be at (0, 0).
1172     if (GetParent())
1173     {
1174         wxPoint pt(GetParent()->GetClientAreaOrigin());
1175         xx -= pt.x;
1176         yy -= pt.y;
1177     }
1178
1179     *x = xx; *y = yy;
1180 }
1181
1182 void wxWindow::DoScreenToClient(int *x, int *y) const
1183 {
1184     Widget widget = (Widget) GetClientWidget();
1185     Display *display = XtDisplay((Widget) GetMainWidget());
1186     Window rootWindow = RootWindowOfScreen(XtScreen(widget));
1187     Window thisWindow = XtWindow(widget);
1188
1189     Window childWindow;
1190     int xx = *x;
1191     int yy = *y;
1192     XTranslateCoordinates(display, rootWindow, thisWindow, xx, yy, x, y, &childWindow);
1193 }
1194
1195 void wxWindow::DoClientToScreen(int *x, int *y) const
1196 {
1197     Widget widget = (Widget) GetClientWidget();
1198     Display *display = XtDisplay(widget);
1199     Window rootWindow = RootWindowOfScreen(XtScreen(widget));
1200     Window thisWindow = XtWindow(widget);
1201
1202     Window childWindow;
1203     int xx = *x;
1204     int yy = *y;
1205     XTranslateCoordinates(display, thisWindow, rootWindow, xx, yy, x, y, &childWindow);
1206 }
1207
1208
1209 // Get size *available for subwindows* i.e. excluding menu bar etc.
1210 void wxWindow::DoGetClientSize(int *x, int *y) const
1211 {
1212     Widget widget = (Widget) GetClientWidget();
1213     Dimension xx, yy;
1214     XtVaGetValues(widget, XmNwidth, &xx, XmNheight, &yy, NULL);
1215     *x = xx; *y = yy;
1216 }
1217
1218 void wxWindow::DoSetSize(int x, int y, int width, int height, int sizeFlags)
1219 {
1220     // A bit of optimization to help sort out the flickers.
1221     int oldX, oldY, oldW, oldH;
1222     GetSize(& oldW, & oldH);
1223     GetPosition(& oldX, & oldY);
1224
1225     bool useOldPos = FALSE;
1226     bool useOldSize = FALSE;
1227
1228     if ((x == -1) && (x == -1) && ((sizeFlags & wxSIZE_ALLOW_MINUS_ONE) == 0))
1229         useOldPos = TRUE;
1230     else if (x == oldX && y == oldY)
1231         useOldPos = TRUE;
1232
1233     if ((width == -1) && (height == -1))
1234         useOldSize = TRUE;
1235     else if (width == oldW && height == oldH)
1236         useOldSize = TRUE;
1237
1238     if (!wxNoOptimize::CanOptimize())
1239     {
1240         useOldSize = FALSE; useOldPos = FALSE;
1241     }
1242
1243     if (useOldPos && useOldSize)
1244         return;
1245
1246     if (m_drawingArea)
1247     {
1248         CanvasSetSize(x, y, width, height, sizeFlags);
1249         return;
1250     }
1251     Widget widget = (Widget) GetTopWidget();
1252     if (!widget)
1253         return;
1254
1255     bool managed = XtIsManaged( widget );
1256     if (managed)
1257         XtUnmanageChild(widget);
1258
1259     int xx = x; int yy = y;
1260     AdjustForParentClientOrigin(xx, yy, sizeFlags);
1261
1262     if (!useOldPos)
1263     {
1264         if (x > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
1265             XtVaSetValues(widget, XmNx, xx, NULL);
1266         if (y > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
1267             XtVaSetValues(widget, XmNy, yy, NULL);
1268     }
1269     if (!useOldSize)
1270     {
1271         if (width > -1)
1272             XtVaSetValues(widget, XmNwidth, width, NULL);
1273         if (height > -1)
1274             XtVaSetValues(widget, XmNheight, height, NULL);
1275     }
1276
1277     if (managed)
1278         XtManageChild(widget);
1279
1280     // How about this bit. Maybe we don't need to generate size events
1281     // all the time -- they'll be generated when the window is sized anyway.
1282 #if 0
1283     wxSizeEvent sizeEvent(wxSize(width, height), GetId());
1284     sizeEvent.SetEventObject(this);
1285
1286       GetEventHandler()->ProcessEvent(sizeEvent);
1287 #endif // 0
1288 }
1289
1290 void wxWindow::DoSetClientSize(int width, int height)
1291 {
1292     if (m_drawingArea)
1293     {
1294         CanvasSetClientSize(width, height);
1295         return;
1296     }
1297
1298     Widget widget = (Widget) GetTopWidget();
1299
1300     if (width > -1)
1301         XtVaSetValues(widget, XmNwidth, width, NULL);
1302     if (height > -1)
1303         XtVaSetValues(widget, XmNheight, height, NULL);
1304
1305     wxSizeEvent sizeEvent(wxSize(width, height), GetId());
1306     sizeEvent.SetEventObject(this);
1307
1308     GetEventHandler()->ProcessEvent(sizeEvent);
1309 }
1310
1311 // For implementation purposes - sometimes decorations make the client area
1312 // smaller
1313 wxPoint wxWindow::GetClientAreaOrigin() const
1314 {
1315     return wxPoint(0, 0);
1316 }
1317
1318 // Makes an adjustment to the window position (for example, a frame that has
1319 // a toolbar that it manages itself).
1320 void wxWindow::AdjustForParentClientOrigin(int& x, int& y, int sizeFlags)
1321 {
1322     if (((sizeFlags & wxSIZE_NO_ADJUSTMENTS) == 0) && GetParent())
1323     {
1324         wxPoint pt(GetParent()->GetClientAreaOrigin());
1325         x += pt.x; y += pt.y;
1326     }
1327 }
1328
1329 void wxWindow::SetSizeHints(int minW, int minH, int maxW, int maxH, int incW, int incH)
1330 {
1331     m_minWidth = minW;
1332     m_minHeight = minH;
1333     m_maxWidth = maxW;
1334     m_maxHeight = maxH;
1335
1336     wxFrame *frame = wxDynamicCast(this, wxFrame);
1337     if ( !frame )
1338     {
1339         // TODO what about dialogs?
1340         return;
1341     }
1342
1343     Widget widget = (Widget) frame->GetShellWidget();
1344
1345     if (minW > -1)
1346         XtVaSetValues(widget, XmNminWidth, minW, NULL);
1347     if (minH > -1)
1348         XtVaSetValues(widget, XmNminHeight, minH, NULL);
1349     if (maxW > -1)
1350         XtVaSetValues(widget, XmNmaxWidth, maxW, NULL);
1351     if (maxH > -1)
1352         XtVaSetValues(widget, XmNmaxHeight, maxH, NULL);
1353     if (incW > -1)
1354         XtVaSetValues(widget, XmNwidthInc, incW, NULL);
1355     if (incH > -1)
1356         XtVaSetValues(widget, XmNheightInc, incH, NULL);
1357 }
1358
1359 // ---------------------------------------------------------------------------
1360 // text metrics
1361 // ---------------------------------------------------------------------------
1362
1363 int wxWindow::GetCharHeight() const
1364 {
1365     wxCHECK_MSG( m_font.Ok(), 0, "valid window font needed" );
1366
1367     WXFontStructPtr pFontStruct = m_font.GetFontStruct(1.0, GetXDisplay());
1368
1369     int direction, ascent, descent;
1370     XCharStruct overall;
1371     XTextExtents ((XFontStruct*) pFontStruct, "x", 1, &direction, &ascent,
1372         &descent, &overall);
1373
1374     //  return (overall.ascent + overall.descent);
1375     return (ascent + descent);
1376 }
1377
1378 int wxWindow::GetCharWidth() const
1379 {
1380     wxCHECK_MSG( m_font.Ok(), 0, "valid window font needed" );
1381
1382     WXFontStructPtr pFontStruct = m_font.GetFontStruct(1.0, GetXDisplay());
1383
1384     int direction, ascent, descent;
1385     XCharStruct overall;
1386     XTextExtents ((XFontStruct*) pFontStruct, "x", 1, &direction, &ascent,
1387         &descent, &overall);
1388
1389     return overall.width;
1390 }
1391
1392 void wxWindow::GetTextExtent(const wxString& string,
1393                              int *x, int *y,
1394                              int *descent, int *externalLeading,
1395                              const wxFont *theFont) const
1396 {
1397     wxFont *fontToUse = (wxFont *)theFont;
1398     if (!fontToUse)
1399         fontToUse = (wxFont *) & m_font;
1400
1401     wxCHECK_RET( fontToUse->Ok(), "valid window font needed" );
1402
1403     WXFontStructPtr pFontStruct = theFont->GetFontStruct(1.0, GetXDisplay());
1404
1405     int direction, ascent, descent2;
1406     XCharStruct overall;
1407     int slen = string.Len();
1408
1409 #if 0
1410     if (use16)
1411         XTextExtents16((XFontStruct*) pFontStruct, (XChar2b *) (char*) (const char*) string, slen, &direction,
1412         &ascent, &descent2, &overall);
1413 #endif
1414
1415     XTextExtents((XFontStruct*) pFontStruct, string, slen,
1416                  &direction, &ascent, &descent2, &overall);
1417
1418     if ( x )
1419         *x = (overall.width);
1420     if ( y )
1421         *y = (ascent + descent2);
1422     if (descent)
1423         *descent = descent2;
1424     if (externalLeading)
1425         *externalLeading = 0;
1426
1427 }
1428
1429 // ----------------------------------------------------------------------------
1430 // painting
1431 // ----------------------------------------------------------------------------
1432
1433 void wxWindow::Refresh(bool eraseBack, const wxRect *rect)
1434 {
1435     m_needsRefresh = TRUE;
1436     Display *display = XtDisplay((Widget) GetMainWidget());
1437     Window thisWindow = XtWindow((Widget) GetMainWidget());
1438
1439     XExposeEvent dummyEvent;
1440     int width, height;
1441     GetSize(&width, &height);
1442
1443     dummyEvent.type = Expose;
1444     dummyEvent.display = display;
1445     dummyEvent.send_event = True;
1446     dummyEvent.window = thisWindow;
1447     if (rect)
1448     {
1449         dummyEvent.x = rect->x;
1450         dummyEvent.y = rect->y;
1451         dummyEvent.width = rect->width;
1452         dummyEvent.height = rect->height;
1453     }
1454     else
1455     {
1456         dummyEvent.x = 0;
1457         dummyEvent.y = 0;
1458         dummyEvent.width = width;
1459         dummyEvent.height = height;
1460     }
1461     dummyEvent.count = 0;
1462
1463     if (eraseBack)
1464     {
1465         wxClientDC dc(this);
1466         wxBrush backgroundBrush(GetBackgroundColour(), wxSOLID);
1467         dc.SetBackground(backgroundBrush);
1468         if (rect)
1469             dc.Clear(*rect);
1470         else
1471             dc.Clear();
1472     }
1473
1474     XSendEvent(display, thisWindow, False, ExposureMask, (XEvent *)&dummyEvent);
1475 }
1476
1477 void wxWindow::Clear()
1478 {
1479     wxClientDC dc(this);
1480     wxBrush brush(GetBackgroundColour(), wxSOLID);
1481     dc.SetBackground(brush);
1482     dc.Clear();
1483 }
1484
1485 void wxWindow::ClearUpdateRects()
1486 {
1487     wxRectList::Node* node = m_updateRects.GetFirst();
1488     while (node)
1489     {
1490         wxRect* rect = node->GetData();
1491         delete rect;
1492         node = node->GetNext();
1493     }
1494
1495     m_updateRects.Clear();
1496 }
1497
1498 void wxWindow::DoPaint()
1499 {
1500     //TODO : make a temporary gc so we can do the XCopyArea below
1501     if (m_backingPixmap && !m_needsRefresh)
1502     {
1503       wxPaintDC dc(this);
1504
1505       GC tempGC = (GC) dc.GetBackingGC();
1506
1507       Widget widget = (Widget) GetMainWidget();
1508
1509       int scrollPosX = 0;
1510       int scrollPosY = 0;
1511
1512       // We have to test whether it's a wxScrolledWindow (hack!) because
1513       // otherwise we don't know how many pixels have been scrolled. We might
1514       // solve this in the future by defining virtual wxWindow functions to get
1515       // the scroll position in pixels. Or, each kind of scrolled window has to
1516       // implement backing stores itself, using generic wxWindows code.
1517       wxScrolledWindow* scrolledWindow = wxDynamicCast(this, wxScrolledWindow);
1518       if ( scrolledWindow )
1519       {
1520           int x, y;
1521           scrolledWindow->CalcScrolledPosition(0, 0, &x, &y);
1522
1523           scrollPosX = - x;
1524           scrollPosY = - y;
1525       }
1526
1527       // TODO: This could be optimized further by only copying the areas in the
1528       //       current update region.
1529
1530       // Only blit the part visible in the client area. The backing pixmap
1531       // always starts at 0, 0 but we may be looking at only a portion of it.
1532       wxSize clientArea = GetClientSize();
1533       int toBlitX = m_pixmapWidth - scrollPosX;
1534       int toBlitY = m_pixmapHeight - scrollPosY;
1535
1536       // Copy whichever is samller, the amount of pixmap we have to copy,
1537       // or the size of the client area.
1538       toBlitX = wxMin(toBlitX, clientArea.x);
1539       toBlitY = wxMin(toBlitY, clientArea.y);
1540
1541       // Make sure we're not negative
1542       toBlitX = wxMax(0, toBlitX);
1543       toBlitY = wxMax(0, toBlitY);
1544
1545       XCopyArea
1546       (
1547        XtDisplay(widget),
1548        (Pixmap) m_backingPixmap,
1549        XtWindow (widget),
1550        tempGC,
1551        scrollPosX, scrollPosY, // Start at the scroll position
1552        toBlitX, toBlitY,       // How much of the pixmap to copy
1553        0, 0                    // Destination
1554       );
1555     }
1556     else
1557     {
1558         // Set an erase event first
1559         wxEraseEvent eraseEvent(GetId());
1560         eraseEvent.SetEventObject(this);
1561         GetEventHandler()->ProcessEvent(eraseEvent);
1562
1563         wxPaintEvent event(GetId());
1564         event.SetEventObject(this);
1565         GetEventHandler()->ProcessEvent(event);
1566
1567         m_needsRefresh = FALSE;
1568     }
1569 }
1570
1571 // ----------------------------------------------------------------------------
1572 // event handlers
1573 // ----------------------------------------------------------------------------
1574
1575 // Responds to colour changes: passes event on to children.
1576 void wxWindow::OnSysColourChanged(wxSysColourChangedEvent& event)
1577 {
1578     wxWindowList::Node *node = GetChildren().GetFirst();
1579     while ( node )
1580     {
1581         // Only propagate to non-top-level windows
1582         wxWindow *win = node->GetData();
1583         if ( win->GetParent() )
1584         {
1585             wxSysColourChangedEvent event2;
1586             event.m_eventObject = win;
1587             win->GetEventHandler()->ProcessEvent(event2);
1588         }
1589
1590         node = node->GetNext();
1591     }
1592 }
1593
1594 void wxWindow::OnIdle(wxIdleEvent& event)
1595 {
1596     // This calls the UI-update mechanism (querying windows for
1597     // menu/toolbar/control state information)
1598     UpdateWindowUI();
1599 }
1600
1601 // ----------------------------------------------------------------------------
1602 // accelerators
1603 // ----------------------------------------------------------------------------
1604
1605 bool wxWindow::ProcessAccelerator(wxKeyEvent& event)
1606 {
1607     if (!m_acceleratorTable.Ok())
1608         return FALSE;
1609
1610     int count = m_acceleratorTable.GetCount();
1611     wxAcceleratorEntry* entries = m_acceleratorTable.GetEntries();
1612     int i;
1613     for (i = 0; i < count; i++)
1614     {
1615         wxAcceleratorEntry* entry = & (entries[i]);
1616         if (entry->MatchesEvent(event))
1617         {
1618             // Bingo, we have a match. Now find a control that matches the entry
1619             // command id.
1620
1621             // Need to go up to the top of the window hierarchy, since it might
1622             // be e.g. a menu item
1623             wxWindow* parent = this;
1624             while ( parent && !parent->IsTopLevel() )
1625                 parent = parent->GetParent();
1626
1627             if (!parent)
1628                 return FALSE;
1629
1630             wxFrame* frame = wxDynamicCast(parent, wxFrame);
1631             if ( frame )
1632             {
1633                 // Try for a menu command
1634                 if (frame->GetMenuBar())
1635                 {
1636                     wxMenuItem* item = frame->GetMenuBar()->FindItemForId(entry->GetCommand());
1637                     if (item)
1638                     {
1639                         wxCommandEvent commandEvent(wxEVT_COMMAND_MENU_SELECTED, entry->GetCommand());
1640                         commandEvent.SetEventObject(frame);
1641
1642                         // If ProcessEvent returns TRUE (it was handled), then
1643                         // the calling code will skip the event handling.
1644                         return frame->GetEventHandler()->ProcessEvent(commandEvent);
1645                     }
1646                 }
1647             }
1648
1649             // Find a child matching the command id
1650             wxWindow* child = parent->FindWindow(entry->GetCommand());
1651
1652             // No such child
1653             if (!child)
1654                 return FALSE;
1655
1656             // Now we process those kinds of windows that we can.
1657             // For now, only buttons.
1658             if ( wxDynamicCast(child, wxButton) )
1659             {
1660                 wxCommandEvent commandEvent (wxEVT_COMMAND_BUTTON_CLICKED, child->GetId());
1661                 commandEvent.SetEventObject(child);
1662                 return child->GetEventHandler()->ProcessEvent(commandEvent);
1663             }
1664
1665             return FALSE;
1666         } // matches event
1667     }// for
1668
1669     // We didn't match the key event against an accelerator.
1670     return FALSE;
1671 }
1672
1673 // ============================================================================
1674 // Motif-specific stuff from here on
1675 // ============================================================================
1676
1677 // ----------------------------------------------------------------------------
1678 // function which maintain the global hash table mapping Widgets to wxWindows
1679 // ----------------------------------------------------------------------------
1680
1681 bool wxAddWindowToTable(Widget w, wxWindow *win)
1682 {
1683     wxWindow *oldItem = NULL;
1684     if ((oldItem = (wxWindow *)wxWidgetHashTable->Get ((long) w)))
1685     {
1686         wxLogDebug("Widget table clash: new widget is %ld, %s",
1687                    (long)w, win->GetClassInfo()->GetClassName());
1688         return FALSE;
1689     }
1690
1691     wxWidgetHashTable->Put((long) w, win);
1692
1693     wxLogDebug("Widget 0x%08x <-> window %p (%s)",
1694                w, win, win->GetClassInfo()->GetClassName());
1695
1696     return TRUE;
1697 }
1698
1699 wxWindow *wxGetWindowFromTable(Widget w)
1700 {
1701     return (wxWindow *)wxWidgetHashTable->Get((long) w);
1702 }
1703
1704 void wxDeleteWindowFromTable(Widget w)
1705 {
1706     wxWidgetHashTable->Delete((long)w);
1707 }
1708
1709 // ----------------------------------------------------------------------------
1710 // add/remove window from the table
1711 // ----------------------------------------------------------------------------
1712
1713 // Add to hash table, add event handler
1714 bool wxWindow::AttachWidget (wxWindow* parent, WXWidget mainWidget,
1715                              WXWidget formWidget, int x, int y, int width, int height)
1716 {
1717     wxAddWindowToTable((Widget) mainWidget, this);
1718     if (CanAddEventHandler())
1719     {
1720         XtAddEventHandler((Widget) mainWidget,
1721             ButtonPressMask | ButtonReleaseMask | PointerMotionMask, // | KeyPressMask,
1722             False,
1723             wxPanelItemEventHandler,
1724             (XtPointer) this);
1725     }
1726
1727     if (!formWidget)
1728     {
1729         XtTranslations ptr;
1730         XtOverrideTranslations ((Widget) mainWidget,
1731             ptr = XtParseTranslationTable ("<Configure>: resize()"));
1732         XtFree ((char *) ptr);
1733     }
1734
1735     // Some widgets have a parent form widget, e.g. wxRadioBox
1736     if (formWidget)
1737     {
1738         if (!wxAddWindowToTable((Widget) formWidget, this))
1739             return FALSE;
1740
1741         XtTranslations ptr;
1742         XtOverrideTranslations ((Widget) formWidget,
1743             ptr = XtParseTranslationTable ("<Configure>: resize()"));
1744         XtFree ((char *) ptr);
1745     }
1746
1747     if (x == -1)
1748         x = 0;
1749     if (y == -1)
1750         y = 0;
1751     SetSize (x, y, width, height);
1752
1753     return TRUE;
1754 }
1755
1756 // Remove event handler, remove from hash table
1757 bool wxWindow::DetachWidget(WXWidget widget)
1758 {
1759     if (CanAddEventHandler())
1760     {
1761         XtRemoveEventHandler((Widget) widget,
1762             ButtonPressMask | ButtonReleaseMask | PointerMotionMask, // | KeyPressMask,
1763             False,
1764             wxPanelItemEventHandler,
1765             (XtPointer)this);
1766     }
1767
1768     wxDeleteWindowFromTable((Widget) widget);
1769     return TRUE;
1770 }
1771
1772 // ----------------------------------------------------------------------------
1773 // Motif-specific accessors
1774 // ----------------------------------------------------------------------------
1775
1776 // Get the underlying X window
1777 WXWindow wxWindow::GetXWindow() const
1778 {
1779     Widget wMain = (Widget)GetMainWidget();
1780     if ( wMain )
1781         return (WXWindow) XtWindow(wMain);
1782     else
1783         return (WXWindow) 0;
1784 }
1785
1786 // Get the underlying X display
1787 WXDisplay *wxWindow::GetXDisplay() const
1788 {
1789     Widget wMain = (Widget)GetMainWidget();
1790     if ( wMain )
1791         return (WXDisplay*) XtDisplay(wMain);
1792     else
1793         return (WXDisplay*) NULL;
1794 }
1795
1796 WXWidget wxWindow::GetMainWidget() const
1797 {
1798     if (m_drawingArea)
1799         return m_drawingArea;
1800     else
1801         return m_mainWidget;
1802 }
1803
1804 WXWidget wxWindow::GetClientWidget() const
1805 {
1806     if (m_drawingArea != (WXWidget) 0)
1807         return m_drawingArea;
1808     else
1809         return GetMainWidget();
1810 }
1811
1812 WXWidget wxWindow::GetTopWidget() const
1813 {
1814     return GetMainWidget();
1815 }
1816
1817 WXWidget wxWindow::GetLabelWidget() const
1818 {
1819     return GetMainWidget();
1820 }
1821
1822 // ----------------------------------------------------------------------------
1823 // Motif callbacks
1824 // ----------------------------------------------------------------------------
1825
1826 // All widgets should have this as their resize proc.
1827 // OnSize sent to wxWindow via client data.
1828 void wxWidgetResizeProc(Widget w, XConfigureEvent *event, String args[], int *num_args)
1829 {
1830     wxWindow *win = wxGetWindowFromTable(w);
1831     if (!win)
1832         return;
1833
1834     if (win->PreResize())
1835     {
1836         int width, height;
1837         win->GetSize(&width, &height);
1838         wxSizeEvent sizeEvent(wxSize(width, height), win->GetId());
1839         sizeEvent.SetEventObject(win);
1840         win->GetEventHandler()->ProcessEvent(sizeEvent);
1841     }
1842 }
1843
1844 static void wxCanvasRepaintProc(Widget drawingArea,
1845                                 XtPointer clientData,
1846                                 XmDrawingAreaCallbackStruct * cbs)
1847 {
1848     if (!wxGetWindowFromTable(drawingArea))
1849         return;
1850
1851     XEvent * event = cbs->event;
1852     wxWindow * win = (wxWindow *) clientData;
1853
1854     switch (event->type)
1855     {
1856     case Expose:
1857         {
1858             win->AddUpdateRect(event->xexpose.x, event->xexpose.y,
1859                                event->xexpose.width, event->xexpose.height);
1860
1861             if (event -> xexpose.count == 0)
1862             {
1863                 win->DoPaint();
1864                 win->ClearUpdateRects();
1865             }
1866             break;
1867         }
1868     }
1869 }
1870
1871 // Unable to deal with Enter/Leave without a separate EventHandler (Motif 1.1.4)
1872 static void wxCanvasEnterLeave(Widget drawingArea,
1873                                XtPointer clientData,
1874                                XCrossingEvent * event)
1875 {
1876     XmDrawingAreaCallbackStruct cbs;
1877     XEvent ev;
1878
1879     ((XCrossingEvent &) ev) = *event;
1880
1881     cbs.reason = XmCR_INPUT;
1882     cbs.event = &ev;
1883
1884     wxCanvasInputEvent(drawingArea, (XtPointer) NULL, &cbs);
1885 }
1886
1887 // Fix to make it work under Motif 1.0 (!)
1888 static void wxCanvasMotionEvent (Widget drawingArea, XButtonEvent * event)
1889 {
1890 #if XmVersion <= 1000
1891     XmDrawingAreaCallbackStruct cbs;
1892     XEvent ev;
1893
1894     ev = *((XEvent *) event);
1895     cbs.reason = XmCR_INPUT;
1896     cbs.event = &ev;
1897
1898     wxCanvasInputEvent (drawingArea, (XtPointer) NULL, &cbs);
1899 #endif // XmVersion <= 1000
1900 }
1901
1902 static void wxCanvasInputEvent(Widget drawingArea,
1903                                XtPointer data,
1904                                XmDrawingAreaCallbackStruct * cbs)
1905 {
1906     wxWindow *canvas = wxGetWindowFromTable(drawingArea);
1907     XEvent local_event;
1908
1909     if (canvas==NULL)
1910         return;
1911
1912     if (cbs->reason != XmCR_INPUT)
1913         return;
1914
1915     local_event = *(cbs->event);    // We must keep a copy!
1916
1917     switch (local_event.xany.type)
1918     {
1919     case EnterNotify:
1920     case LeaveNotify:
1921     case ButtonPress:
1922     case ButtonRelease:
1923     case MotionNotify:
1924         {
1925             // FIXME: most of this mouse event code is more or less
1926             // duplicated in wxTranslateMouseEvent
1927             //
1928             wxEventType eventType = wxEVT_NULL;
1929
1930             if (local_event.xany.type == EnterNotify)
1931             {
1932                 //if (local_event.xcrossing.mode!=NotifyNormal)
1933                 //  return ; // Ignore grab events
1934                 eventType = wxEVT_ENTER_WINDOW;
1935                 //            canvas->GetEventHandler()->OnSetFocus();
1936             }
1937             else if (local_event.xany.type == LeaveNotify)
1938             {
1939                 //if (local_event.xcrossingr.mode!=NotifyNormal)
1940                 //  return ; // Ignore grab events
1941                 eventType = wxEVT_LEAVE_WINDOW;
1942                 //            canvas->GetEventHandler()->OnKillFocus();
1943             }
1944             else if (local_event.xany.type == MotionNotify)
1945             {
1946                 eventType = wxEVT_MOTION;
1947                 if (local_event.xmotion.is_hint == NotifyHint)
1948                 {
1949                     Window root, child;
1950                     Display *dpy = XtDisplay (drawingArea);
1951
1952                     XQueryPointer (dpy, XtWindow (drawingArea),
1953                         &root, &child,
1954                         &local_event.xmotion.x_root,
1955                         &local_event.xmotion.y_root,
1956                         &local_event.xmotion.x,
1957                         &local_event.xmotion.y,
1958                         &local_event.xmotion.state);
1959                 }
1960                 else
1961                 {
1962                 }
1963             }
1964
1965             else if (local_event.xany.type == ButtonPress)
1966             {
1967                 if (local_event.xbutton.button == Button1)
1968                 {
1969                     eventType = wxEVT_LEFT_DOWN;
1970                     canvas->SetButton1(TRUE);
1971                 }
1972                 else if (local_event.xbutton.button == Button2)
1973                 {
1974                     eventType = wxEVT_MIDDLE_DOWN;
1975                     canvas->SetButton2(TRUE);
1976                 }
1977                 else if (local_event.xbutton.button == Button3)
1978                 {
1979                     eventType = wxEVT_RIGHT_DOWN;
1980                     canvas->SetButton3(TRUE);
1981                 }
1982             }
1983             else if (local_event.xany.type == ButtonRelease)
1984             {
1985                 if (local_event.xbutton.button == Button1)
1986                 {
1987                     eventType = wxEVT_LEFT_UP;
1988                     canvas->SetButton1(FALSE);
1989                 }
1990                 else if (local_event.xbutton.button == Button2)
1991                 {
1992                     eventType = wxEVT_MIDDLE_UP;
1993                     canvas->SetButton2(FALSE);
1994                 }
1995                 else if (local_event.xbutton.button == Button3)
1996                 {
1997                     eventType = wxEVT_RIGHT_UP;
1998                     canvas->SetButton3(FALSE);
1999                 }
2000             }
2001
2002             wxMouseEvent wxevent (eventType);
2003
2004             wxevent.m_leftDown = ((eventType == wxEVT_LEFT_DOWN)
2005                 || (event_left_is_down (&local_event)
2006                 && (eventType != wxEVT_LEFT_UP)));
2007             wxevent.m_middleDown = ((eventType == wxEVT_MIDDLE_DOWN)
2008                 || (event_middle_is_down (&local_event)
2009                 && (eventType != wxEVT_MIDDLE_UP)));
2010             wxevent.m_rightDown = ((eventType == wxEVT_RIGHT_DOWN)
2011                 || (event_right_is_down (&local_event)
2012                 && (eventType != wxEVT_RIGHT_UP)));
2013
2014             wxevent.m_shiftDown = local_event.xbutton.state & ShiftMask;
2015             wxevent.m_controlDown = local_event.xbutton.state & ControlMask;
2016             wxevent.m_altDown = local_event.xbutton.state & Mod3Mask;
2017             wxevent.m_metaDown = local_event.xbutton.state & Mod1Mask;
2018             wxevent.SetTimestamp(local_event.xbutton.time);
2019
2020             // Now check if we need to translate this event into a double click
2021             if (TRUE) // canvas->doubleClickAllowed)
2022             {
2023                 if (wxevent.ButtonDown())
2024                 {
2025                     long dclickTime = XtGetMultiClickTime((Display*) wxGetDisplay());
2026
2027                     // get button and time-stamp
2028                     int button = 0;
2029                     if (wxevent.LeftDown())
2030                         button = 1;
2031                     else if (wxevent.MiddleDown())
2032                         button = 2;
2033                     else if (wxevent.RightDown())
2034                         button = 3;
2035                     long ts = wxevent.GetTimestamp();
2036
2037                     // check, if single or double click
2038                     int buttonLast = canvas->GetLastClickedButton();
2039                     long lastTS = canvas->GetLastClickTime();
2040                     if ( buttonLast && buttonLast == button && (ts - lastTS) < dclickTime )
2041                     {
2042                         // I have a dclick
2043                         canvas->SetLastClick(0, ts);
2044                         switch ( eventType )
2045                         {
2046                         case wxEVT_LEFT_DOWN:
2047                             wxevent.SetEventType(wxEVT_LEFT_DCLICK);
2048                             break;
2049                         case wxEVT_MIDDLE_DOWN:
2050                             wxevent.SetEventType(wxEVT_MIDDLE_DCLICK);
2051                             break;
2052                         case wxEVT_RIGHT_DOWN:
2053                             wxevent.SetEventType(wxEVT_RIGHT_DCLICK);
2054                             break;
2055
2056                         default :
2057                             break;
2058                         }
2059
2060                     }
2061                     else
2062                     {
2063                         // not fast enough or different button
2064                         canvas->SetLastClick(button, ts);
2065                     }
2066                 }
2067             }
2068
2069             wxevent.SetId(canvas->GetId());
2070             wxevent.SetEventObject(canvas);
2071             wxevent.m_x = local_event.xbutton.x;
2072             wxevent.m_y = local_event.xbutton.y;
2073             canvas->GetEventHandler()->ProcessEvent (wxevent);
2074 #if 0
2075             if (eventType == wxEVT_ENTER_WINDOW ||
2076                     eventType == wxEVT_LEAVE_WINDOW ||
2077                     eventType == wxEVT_MOTION
2078                )
2079                 return;
2080 #endif // 0
2081             break;
2082       }
2083     case KeyPress:
2084         {
2085             KeySym keySym;
2086 #if 0
2087             XComposeStatus compose;
2088             (void) XLookupString ((XKeyEvent *) & local_event, wxBuffer, 20, &keySym, &compose);
2089 #endif // 0
2090
2091             (void) XLookupString ((XKeyEvent *) & local_event, wxBuffer, 20, &keySym, NULL);
2092             int id = wxCharCodeXToWX (keySym);
2093
2094             wxEventType eventType = wxEVT_CHAR;
2095
2096             wxKeyEvent event (eventType);
2097
2098             if (local_event.xkey.state & ShiftMask)
2099                 event.m_shiftDown = TRUE;
2100             if (local_event.xkey.state & ControlMask)
2101                 event.m_controlDown = TRUE;
2102             if (local_event.xkey.state & Mod3Mask)
2103                 event.m_altDown = TRUE;
2104             if (local_event.xkey.state & Mod1Mask)
2105                 event.m_metaDown = TRUE;
2106             event.SetEventObject(canvas);
2107             event.m_keyCode = id;
2108             event.SetTimestamp(local_event.xkey.time);
2109
2110             if (id > -1)
2111             {
2112                 // Implement wxFrame::OnCharHook by checking ancestor.
2113                 wxWindow *parent = canvas->GetParent();
2114                 while (parent && !parent->IsKindOf(CLASSINFO(wxFrame)))
2115                     parent = parent->GetParent();
2116
2117                 if (parent)
2118                 {
2119                     event.SetEventType(wxEVT_CHAR_HOOK);
2120                     if (parent->GetEventHandler()->ProcessEvent(event))
2121                         return;
2122                 }
2123
2124                 // For simplicity, OnKeyDown is the same as OnChar
2125                 // TODO: filter modifier key presses from OnChar
2126                 event.SetEventType(wxEVT_KEY_DOWN);
2127
2128                 // Only process OnChar if OnKeyDown didn't swallow it
2129                 if (!canvas->GetEventHandler()->ProcessEvent (event))
2130                 {
2131                   event.SetEventType(wxEVT_CHAR);
2132                   canvas->GetEventHandler()->ProcessEvent (event);
2133         }
2134             }
2135             break;
2136         }
2137     case KeyRelease:
2138         {
2139             KeySym keySym;
2140             (void) XLookupString ((XKeyEvent *) & local_event, wxBuffer, 20, &keySym, NULL);
2141             int id = wxCharCodeXToWX (keySym);
2142
2143             wxKeyEvent event (wxEVT_KEY_UP);
2144
2145             if (local_event.xkey.state & ShiftMask)
2146                 event.m_shiftDown = TRUE;
2147             if (local_event.xkey.state & ControlMask)
2148                 event.m_controlDown = TRUE;
2149             if (local_event.xkey.state & Mod3Mask)
2150                 event.m_altDown = TRUE;
2151             if (local_event.xkey.state & Mod1Mask)
2152                 event.m_metaDown = TRUE;
2153             event.SetEventObject(canvas);
2154             event.m_keyCode = id;
2155             event.SetTimestamp(local_event.xkey.time);
2156
2157             if (id > -1)
2158             {
2159                 canvas->GetEventHandler()->ProcessEvent (event);
2160             }
2161             break;
2162         }
2163     case FocusIn:
2164         {
2165             if (local_event.xfocus.detail != NotifyPointer)
2166             {
2167                 wxFocusEvent event(wxEVT_SET_FOCUS, canvas->GetId());
2168                 event.SetEventObject(canvas);
2169                 canvas->GetEventHandler()->ProcessEvent(event);
2170             }
2171             break;
2172         }
2173     case FocusOut:
2174         {
2175             if (local_event.xfocus.detail != NotifyPointer)
2176             {
2177                 wxFocusEvent event(wxEVT_KILL_FOCUS, canvas->GetId());
2178                 event.SetEventObject(canvas);
2179                 canvas->GetEventHandler()->ProcessEvent(event);
2180             }
2181             break;
2182         }
2183     default:
2184         break;
2185     }
2186 }
2187
2188 static void wxPanelItemEventHandler(Widget    wid,
2189                                     XtPointer client_data,
2190                                     XEvent*   event,
2191                                     Boolean  *continueToDispatch)
2192 {
2193     // Widget can be a label or the actual widget.
2194
2195     wxWindow *window = wxGetWindowFromTable(wid);
2196     if (window)
2197     {
2198         wxMouseEvent wxevent(0);
2199         if (wxTranslateMouseEvent(wxevent, window, wid, event))
2200         {
2201             window->GetEventHandler()->ProcessEvent(wxevent);
2202         }
2203     }
2204
2205     // TODO: probably the key to allowing default behaviour to happen. Say we
2206     // set a m_doDefault flag to FALSE at the start of this function. Then in
2207     // e.g. wxWindow::OnMouseEvent we can call Default() which sets this flag to
2208     // TRUE, indicating that default processing can happen. Thus, behaviour can
2209     // appear to be overridden just by adding an event handler and not calling
2210     // wxWindow::OnWhatever. ALSO, maybe we can use this instead of the current
2211     // way of handling drawing area events, to simplify things.
2212     *continueToDispatch = True;
2213 }
2214
2215 static void wxScrollBarCallback(Widget scrollbar,
2216                                 XtPointer clientData,
2217                                 XmScrollBarCallbackStruct *cbs)
2218 {
2219     wxWindow *win = wxGetWindowFromTable(scrollbar);
2220     int orientation = (int) clientData;
2221
2222     wxEventType eventType = wxEVT_NULL;
2223     switch (cbs->reason)
2224     {
2225     case XmCR_INCREMENT:
2226         {
2227             eventType = wxEVT_SCROLLWIN_LINEDOWN;
2228             break;
2229         }
2230     case XmCR_DECREMENT:
2231         {
2232             eventType = wxEVT_SCROLLWIN_LINEUP;
2233             break;
2234         }
2235     case XmCR_DRAG:
2236         {
2237             eventType = wxEVT_SCROLLWIN_THUMBTRACK;
2238             break;
2239         }
2240     case XmCR_VALUE_CHANGED:
2241         {
2242             // TODO: Should this be intercepted too, or will it cause
2243             // duplicate events?
2244             eventType = wxEVT_SCROLLWIN_THUMBTRACK;
2245             break;
2246         }
2247     case XmCR_PAGE_INCREMENT:
2248         {
2249             eventType = wxEVT_SCROLLWIN_PAGEDOWN;
2250             break;
2251         }
2252     case XmCR_PAGE_DECREMENT:
2253         {
2254             eventType = wxEVT_SCROLLWIN_PAGEUP;
2255             break;
2256         }
2257     case XmCR_TO_TOP:
2258         {
2259             eventType = wxEVT_SCROLLWIN_TOP;
2260             break;
2261         }
2262     case XmCR_TO_BOTTOM:
2263         {
2264             eventType = wxEVT_SCROLLWIN_BOTTOM;
2265             break;
2266         }
2267     default:
2268         {
2269             // Should never get here
2270             wxFAIL_MSG("Unknown scroll event.");
2271             break;
2272         }
2273     }
2274
2275     wxScrollWinEvent event(eventType,
2276                            cbs->value,
2277                            ((orientation == XmHORIZONTAL) ?
2278                             wxHORIZONTAL : wxVERTICAL));
2279     event.SetEventObject( win );
2280     win->GetEventHandler()->ProcessEvent(event);
2281 }
2282
2283 // For repainting arbitrary windows
2284 void wxUniversalRepaintProc(Widget w, XtPointer WXUNUSED(c_data), XEvent *event, char *)
2285 {
2286     Window window;
2287     Display *display;
2288
2289     wxWindow* win = wxGetWindowFromTable(w);
2290     if (!win)
2291         return;
2292
2293     switch(event -> type)
2294     {
2295     case Expose:
2296         {
2297             window = (Window) win -> GetXWindow();
2298             display = (Display *) win -> GetXDisplay();
2299
2300             if (event -> xexpose.count == 0)
2301             {
2302                 win->DoPaint();
2303
2304                 win->ClearUpdateRects();
2305             }
2306             else
2307             {
2308                 win->AddUpdateRect(event->xexpose.x, event->xexpose.y,
2309                                    event->xexpose.width, event->xexpose.height);
2310             }
2311
2312             break;
2313         }
2314     }
2315 }
2316
2317 // ----------------------------------------------------------------------------
2318 // CanvaseXXXSize() functions
2319 // ----------------------------------------------------------------------------
2320
2321 // SetSize, but as per old wxCanvas (with drawing widget etc.)
2322 void wxWindow::CanvasSetSize (int x, int y, int w, int h, int sizeFlags)
2323 {
2324     // A bit of optimization to help sort out the flickers.
2325     int oldX, oldY, oldW, oldH;
2326     GetSize(& oldW, & oldH);
2327     GetPosition(& oldX, & oldY);
2328
2329     bool useOldPos = FALSE;
2330     bool useOldSize = FALSE;
2331
2332     if ((x == -1) && (x == -1) && ((sizeFlags & wxSIZE_ALLOW_MINUS_ONE) == 0))
2333         useOldPos = TRUE;
2334     else if (x == oldX && y == oldY)
2335         useOldPos = TRUE;
2336
2337     if ((w == -1) && (h == -1))
2338         useOldSize = TRUE;
2339     else if (w == oldW && h == oldH)
2340         useOldSize = TRUE;
2341
2342     if (!wxNoOptimize::CanOptimize())
2343     {
2344         useOldSize = FALSE; useOldPos = FALSE;
2345     }
2346
2347     if (useOldPos && useOldSize)
2348         return;
2349
2350     Widget drawingArea = (Widget) m_drawingArea;
2351     bool managed = XtIsManaged(m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow);
2352
2353     if (managed)
2354         XtUnmanageChild (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow);
2355     XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_ANY, NULL);
2356
2357     int xx = x; int yy = y;
2358     AdjustForParentClientOrigin(xx, yy, sizeFlags);
2359
2360     if (!useOldPos)
2361     {
2362         if (x > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2363         {
2364             XtVaSetValues (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow,
2365                 XmNx, xx, NULL);
2366         }
2367
2368         if (y > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2369         {
2370             XtVaSetValues (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow,
2371                 XmNy, yy, NULL);
2372         }
2373     }
2374
2375     if (!useOldSize)
2376     {
2377
2378         if (w > -1)
2379         {
2380             if (m_borderWidget)
2381             {
2382                 XtVaSetValues ((Widget) m_borderWidget, XmNwidth, w, NULL);
2383                 short thick, margin;
2384                 XtVaGetValues ((Widget) m_borderWidget,
2385                     XmNshadowThickness, &thick,
2386                     XmNmarginWidth, &margin,
2387                     NULL);
2388                 w -= 2 * (thick + margin);
2389             }
2390
2391             XtVaSetValues ((Widget) m_scrolledWindow, XmNwidth, w, NULL);
2392
2393             Dimension spacing;
2394             Widget sbar;
2395             XtVaGetValues ((Widget) m_scrolledWindow,
2396                 XmNspacing, &spacing,
2397                 XmNverticalScrollBar, &sbar,
2398                 NULL);
2399             Dimension wsbar;
2400             if (sbar)
2401                 XtVaGetValues (sbar, XmNwidth, &wsbar, NULL);
2402             else
2403                 wsbar = 0;
2404
2405             w -= (spacing + wsbar);
2406
2407 #if 0
2408             XtVaSetValues(drawingArea, XmNwidth, w, NULL);
2409 #endif // 0
2410         }
2411         if (h > -1)
2412         {
2413             if (m_borderWidget)
2414             {
2415                 XtVaSetValues ((Widget) m_borderWidget, XmNheight, h, NULL);
2416                 short thick, margin;
2417                 XtVaGetValues ((Widget) m_borderWidget,
2418                     XmNshadowThickness, &thick,
2419                     XmNmarginHeight, &margin,
2420                     NULL);
2421                 h -= 2 * (thick + margin);
2422             }
2423
2424             XtVaSetValues ((Widget) m_scrolledWindow, XmNheight, h, NULL);
2425
2426             Dimension spacing;
2427             Widget sbar;
2428             XtVaGetValues ((Widget) m_scrolledWindow,
2429                 XmNspacing, &spacing,
2430                 XmNhorizontalScrollBar, &sbar,
2431                 NULL);
2432             Dimension wsbar;
2433             if (sbar)
2434                 XtVaGetValues (sbar, XmNheight, &wsbar, NULL);
2435             else
2436                 wsbar = 0;
2437
2438             h -= (spacing + wsbar);
2439
2440 #if 0
2441             XtVaSetValues(drawingArea, XmNheight, h, NULL);
2442 #endif // 0
2443         }
2444     }
2445
2446     if (managed)
2447         XtManageChild (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow);
2448     XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_NONE, NULL);
2449
2450 #if 0
2451     int ww, hh;
2452     GetClientSize (&ww, &hh);
2453     wxSizeEvent sizeEvent(wxSize(ww, hh), GetId());
2454     sizeEvent.SetEventObject(this);
2455
2456     GetEventHandler()->ProcessEvent(sizeEvent);
2457 #endif // 0
2458 }
2459
2460 void wxWindow::CanvasSetClientSize (int w, int h)
2461 {
2462     Widget drawingArea = (Widget) m_drawingArea;
2463
2464     XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_ANY, NULL);
2465
2466     if (w > -1)
2467         XtVaSetValues(drawingArea, XmNwidth, w, NULL);
2468     if (h > -1)
2469         XtVaSetValues(drawingArea, XmNheight, h, NULL);
2470
2471 #if 0
2472     // TODO: is this necessary?
2473     allowRepainting = FALSE;
2474
2475     XSync (XtDisplay (drawingArea), FALSE);
2476     XEvent event;
2477     while (XtAppPending (wxTheApp->appContext))
2478     {
2479         XFlush (XtDisplay (drawingArea));
2480         XtAppNextEvent (wxTheApp->appContext, &event);
2481         XtDispatchEvent (&event);
2482     }
2483 #endif // 0
2484
2485     XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_NONE, NULL);
2486
2487 #if 0
2488     allowRepainting = TRUE;
2489     DoRefresh ();
2490
2491     wxSizeEvent sizeEvent(wxSize(w, h), GetId());
2492     sizeEvent.SetEventObject(this);
2493
2494     GetEventHandler()->ProcessEvent(sizeEvent);
2495 #endif // 0
2496 }
2497
2498 void wxWindow::CanvasGetClientSize (int *w, int *h) const
2499 {
2500     // Must return the same thing that was set via SetClientSize
2501     Dimension xx, yy;
2502     XtVaGetValues ((Widget) m_drawingArea, XmNwidth, &xx, XmNheight, &yy, NULL);
2503     *w = xx;
2504     *h = yy;
2505 }
2506
2507 void wxWindow::CanvasGetSize (int *w, int *h) const
2508 {
2509     Dimension xx, yy;
2510     if ((Widget) m_borderWidget)
2511         XtVaGetValues ((Widget) m_borderWidget, XmNwidth, &xx, XmNheight, &yy, NULL);
2512     else if ((Widget) m_scrolledWindow)
2513         XtVaGetValues ((Widget) m_scrolledWindow, XmNwidth, &xx, XmNheight, &yy, NULL);
2514     else
2515         XtVaGetValues ((Widget) m_drawingArea, XmNwidth, &xx, XmNheight, &yy, NULL);
2516
2517     *w = xx;
2518     *h = yy;
2519 }
2520
2521 void wxWindow::CanvasGetPosition (int *x, int *y) const
2522 {
2523     Position xx, yy;
2524     XtVaGetValues (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow, XmNx, &xx, XmNy, &yy, NULL);
2525
2526     // We may be faking the client origin.
2527     // So a window that's really at (0, 30) may appear
2528     // (to wxWin apps) to be at (0, 0).
2529     if (GetParent())
2530     {
2531         wxPoint pt(GetParent()->GetClientAreaOrigin());
2532         xx -= pt.x;
2533         yy -= pt.y;
2534     }
2535
2536     *x = xx;
2537     *y = yy;
2538 }
2539
2540 // ----------------------------------------------------------------------------
2541 // TranslateXXXEvent() functions
2542 // ----------------------------------------------------------------------------
2543
2544 bool wxTranslateMouseEvent(wxMouseEvent& wxevent, wxWindow *win, Widget widget, XEvent *xevent)
2545 {
2546     switch (xevent->xany.type)
2547     {
2548         case EnterNotify:  // never received here - yes ? MB
2549         case LeaveNotify:  // never received here - yes ? MB
2550         case ButtonPress:
2551         case ButtonRelease:
2552         case MotionNotify:
2553         {
2554             wxEventType eventType = wxEVT_NULL;
2555
2556             // FIXME: this is never true I think - MB
2557             //
2558             if (xevent->xany.type == LeaveNotify)
2559             {
2560                 win->SetButton1(FALSE);
2561                 win->SetButton2(FALSE);
2562                 win->SetButton3(FALSE);
2563                 return FALSE;
2564             }
2565             else if (xevent->xany.type == MotionNotify)
2566             {
2567                 eventType = wxEVT_MOTION;
2568             }
2569             else if (xevent->xany.type == ButtonPress)
2570             {
2571                 wxevent.SetTimestamp(xevent->xbutton.time);
2572                 int button = 0;
2573                 if (xevent->xbutton.button == Button1)
2574                 {
2575                     eventType = wxEVT_LEFT_DOWN;
2576                     win->SetButton1(TRUE);
2577                     button = 1;
2578                 }
2579                 else if (xevent->xbutton.button == Button2)
2580                 {
2581                     eventType = wxEVT_MIDDLE_DOWN;
2582                     win->SetButton2(TRUE);
2583                     button = 2;
2584                 }
2585                 else if (xevent->xbutton.button == Button3)
2586                 {
2587                     eventType = wxEVT_RIGHT_DOWN;
2588                     win->SetButton3(TRUE);
2589                     button = 3;
2590                 }
2591
2592                 // check for a double click
2593                 //
2594                 long dclickTime = XtGetMultiClickTime((Display*) wxGetDisplay());
2595                 long ts = wxevent.GetTimestamp();
2596
2597                 int buttonLast = win->GetLastClickedButton();
2598                 long lastTS = win->GetLastClickTime();
2599                 if ( buttonLast && buttonLast == button && (ts - lastTS) < dclickTime )
2600                 {
2601                     // I have a dclick
2602                     win->SetLastClick(0, ts);
2603                     switch ( eventType )
2604                     {
2605                         case wxEVT_LEFT_DOWN:
2606                             eventType = wxEVT_LEFT_DCLICK;
2607                             break;
2608                         case wxEVT_MIDDLE_DOWN:
2609                             eventType = wxEVT_MIDDLE_DCLICK;
2610                             break;
2611                         case wxEVT_RIGHT_DOWN:
2612                             eventType = wxEVT_RIGHT_DCLICK;
2613                             break;
2614
2615                         default :
2616                             break;
2617                     }
2618
2619                 }
2620                 else
2621                 {
2622                     // not fast enough or different button
2623                     win->SetLastClick(button, ts);
2624                 }
2625             }
2626             else if (xevent->xany.type == ButtonRelease)
2627             {
2628                 if (xevent->xbutton.button == Button1)
2629                 {
2630                     eventType = wxEVT_LEFT_UP;
2631                     win->SetButton1(FALSE);
2632                 }
2633                 else if (xevent->xbutton.button == Button2)
2634                 {
2635                     eventType = wxEVT_MIDDLE_UP;
2636                     win->SetButton2(FALSE);
2637                 }
2638                 else if (xevent->xbutton.button == Button3)
2639                 {
2640                     eventType = wxEVT_RIGHT_UP;
2641                     win->SetButton3(FALSE);
2642                 }
2643                 else return FALSE;
2644             }
2645             else
2646             {
2647                 return FALSE;
2648             }
2649
2650             wxevent.SetEventType(eventType);
2651
2652             Position x1, y1;
2653             XtVaGetValues(widget, XmNx, &x1, XmNy, &y1, NULL);
2654
2655             int x2, y2;
2656             win->GetPosition(&x2, &y2);
2657
2658             // The button x/y must be translated to wxWindows
2659             // window space - the widget might be a label or button,
2660             // within a form.
2661             int dx = 0;
2662             int dy = 0;
2663             if (widget != (Widget)win->GetMainWidget())
2664             {
2665                 dx = x1;
2666                 dy = y1;
2667             }
2668
2669             wxevent.m_x = xevent->xbutton.x + dx;
2670             wxevent.m_y = xevent->xbutton.y + dy;
2671
2672             wxevent.m_leftDown = ((eventType == wxEVT_LEFT_DOWN)
2673                 || (event_left_is_down (xevent)
2674                 && (eventType != wxEVT_LEFT_UP)));
2675             wxevent.m_middleDown = ((eventType == wxEVT_MIDDLE_DOWN)
2676                 || (event_middle_is_down (xevent)
2677                 && (eventType != wxEVT_MIDDLE_UP)));
2678             wxevent.m_rightDown = ((eventType == wxEVT_RIGHT_DOWN)
2679                 || (event_right_is_down (xevent)
2680                 && (eventType != wxEVT_RIGHT_UP)));
2681
2682             wxevent.m_shiftDown = xevent->xbutton.state & ShiftMask;
2683             wxevent.m_controlDown = xevent->xbutton.state & ControlMask;
2684             wxevent.m_altDown = xevent->xbutton.state & Mod3Mask;
2685             wxevent.m_metaDown = xevent->xbutton.state & Mod1Mask;
2686
2687             wxevent.SetId(win->GetId());
2688             wxevent.SetEventObject(win);
2689
2690             return TRUE;
2691         }
2692     }
2693     return FALSE;
2694 }
2695
2696 bool wxTranslateKeyEvent(wxKeyEvent& wxevent, wxWindow *win, Widget widget, XEvent *xevent)
2697 {
2698     switch (xevent->xany.type)
2699     {
2700     case KeyPress:
2701     case KeyRelease:
2702         {
2703             char buf[20];
2704
2705             KeySym keySym;
2706 #if 0
2707             XComposeStatus compose;
2708             (void) XLookupString ((XKeyEvent *) xevent, buf, 20, &keySym, &compose);
2709 #endif // 0
2710             (void) XLookupString ((XKeyEvent *) xevent, buf, 20, &keySym, NULL);
2711             int id = wxCharCodeXToWX (keySym);
2712
2713             if (xevent->xkey.state & ShiftMask)
2714                 wxevent.m_shiftDown = TRUE;
2715             if (xevent->xkey.state & ControlMask)
2716                 wxevent.m_controlDown = TRUE;
2717             if (xevent->xkey.state & Mod3Mask)
2718                 wxevent.m_altDown = TRUE;
2719             if (xevent->xkey.state & Mod1Mask)
2720                 wxevent.m_metaDown = TRUE;
2721             wxevent.SetEventObject(win);
2722             wxevent.m_keyCode = id;
2723             wxevent.SetTimestamp(xevent->xkey.time);
2724
2725             wxevent.m_x = xevent->xbutton.x;
2726             wxevent.m_y = xevent->xbutton.y;
2727
2728             if (id > -1)
2729                 return TRUE;
2730             else
2731                 return FALSE;
2732             break;
2733         }
2734     default:
2735         break;
2736     }
2737     return FALSE;
2738 }
2739
2740 // ----------------------------------------------------------------------------
2741 // Colour stuff
2742 // ----------------------------------------------------------------------------
2743
2744 #define YAllocColor XAllocColor
2745 XColor g_itemColors[5];
2746 int wxComputeColours (Display *display, wxColour * back, wxColour * fore)
2747 {
2748     int result;
2749     static XmColorProc colorProc;
2750
2751     result = wxNO_COLORS;
2752
2753     if (back)
2754     {
2755         g_itemColors[0].red = (((long) back->Red ()) << 8);
2756         g_itemColors[0].green = (((long) back->Green ()) << 8);
2757         g_itemColors[0].blue = (((long) back->Blue ()) << 8);
2758         g_itemColors[0].flags = DoRed | DoGreen | DoBlue;
2759         if (colorProc == (XmColorProc) NULL)
2760         {
2761             // Get a ptr to the actual function
2762             colorProc = XmSetColorCalculation ((XmColorProc) NULL);
2763             // And set it back to motif.
2764             XmSetColorCalculation (colorProc);
2765         }
2766         (*colorProc) (&g_itemColors[wxBACK_INDEX],
2767             &g_itemColors[wxFORE_INDEX],
2768             &g_itemColors[wxSELE_INDEX],
2769             &g_itemColors[wxTOPS_INDEX],
2770             &g_itemColors[wxBOTS_INDEX]);
2771         result = wxBACK_COLORS;
2772     }
2773     if (fore)
2774     {
2775         g_itemColors[wxFORE_INDEX].red = (((long) fore->Red ()) << 8);
2776         g_itemColors[wxFORE_INDEX].green = (((long) fore->Green ()) << 8);
2777         g_itemColors[wxFORE_INDEX].blue = (((long) fore->Blue ()) << 8);
2778         g_itemColors[wxFORE_INDEX].flags = DoRed | DoGreen | DoBlue;
2779         if (result == wxNO_COLORS)
2780             result = wxFORE_COLORS;
2781     }
2782
2783     Display *dpy = display;
2784     Colormap cmap = (Colormap) wxTheApp->GetMainColormap((WXDisplay*) dpy);
2785
2786     if (back)
2787     {
2788         /* 5 Colours to allocate */
2789         for (int i = 0; i < 5; i++)
2790             if (!YAllocColor (dpy, cmap, &g_itemColors[i]))
2791                 result = wxNO_COLORS;
2792     }
2793     else if (fore)
2794     {
2795         /* Only 1 colour to allocate */
2796         if (!YAllocColor (dpy, cmap, &g_itemColors[wxFORE_INDEX]))
2797             result = wxNO_COLORS;
2798     }
2799
2800     return (result);
2801
2802 }
2803
2804 // Changes the foreground and background colours to be derived from the current
2805 // background colour. To change the foreground colour, you must call
2806 // SetForegroundColour explicitly.
2807 void wxWindow::ChangeBackgroundColour()
2808 {
2809     WXWidget mainWidget = GetMainWidget();
2810     if ( mainWidget )
2811         DoChangeBackgroundColour(mainWidget, m_backgroundColour);
2812
2813     // This not necessary
2814 #if 0
2815
2816     if (m_scrolledWindow && (GetMainWidget() != m_scrolledWindow))
2817     {
2818         DoChangeBackgroundColour(m_scrolledWindow, m_backgroundColour);
2819         // Have to set the scrollbar colours back since
2820         // the scrolled window seemed to change them
2821         wxColour backgroundColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE);
2822
2823         if (m_hScrollBar)
2824             DoChangeBackgroundColour(m_hScrollBar, backgroundColour);
2825         if (m_vScrollBar)
2826             DoChangeBackgroundColour(m_vScrollBar, backgroundColour);
2827     }
2828 #endif
2829 }
2830
2831 void wxWindow::ChangeForegroundColour()
2832 {
2833     WXWidget mainWidget = GetMainWidget();
2834     if ( mainWidget )
2835         DoChangeForegroundColour(mainWidget, m_foregroundColour);
2836     if ( m_scrolledWindow && mainWidget != m_scrolledWindow )
2837         DoChangeForegroundColour(m_scrolledWindow, m_foregroundColour);
2838 }
2839
2840 // Change a widget's foreground and background colours.
2841 void wxWindow::DoChangeForegroundColour(WXWidget widget, wxColour& foregroundColour)
2842 {
2843     // When should we specify the foreground, if it's calculated
2844     // by wxComputeColours?
2845     // Solution: say we start with the default (computed) foreground colour.
2846     // If we call SetForegroundColour explicitly for a control or window,
2847     // then the foreground is changed.
2848     // Therefore SetBackgroundColour computes the foreground colour, and
2849     // SetForegroundColour changes the foreground colour. The ordering is
2850     // important.
2851
2852     Widget w = (Widget)widget;
2853     XtVaSetValues(
2854                   w,
2855                   XmNforeground, foregroundColour.AllocColour(XtDisplay(w)),
2856                   NULL
2857                  );
2858 }
2859
2860 void wxWindow::DoChangeBackgroundColour(WXWidget widget, wxColour& backgroundColour, bool changeArmColour)
2861 {
2862     wxComputeColours (XtDisplay((Widget) widget), & backgroundColour,
2863         (wxColour*) NULL);
2864
2865     XtVaSetValues ((Widget) widget,
2866         XmNbackground, g_itemColors[wxBACK_INDEX].pixel,
2867         XmNtopShadowColor, g_itemColors[wxTOPS_INDEX].pixel,
2868         XmNbottomShadowColor, g_itemColors[wxBOTS_INDEX].pixel,
2869         XmNforeground, g_itemColors[wxFORE_INDEX].pixel,
2870         NULL);
2871
2872     if (changeArmColour)
2873         XtVaSetValues ((Widget) widget,
2874         XmNarmColor, g_itemColors[wxSELE_INDEX].pixel,
2875         NULL);
2876 }
2877
2878 bool wxWindow::SetBackgroundColour(const wxColour& col)
2879 {
2880     if ( !wxWindowBase::SetBackgroundColour(col) )
2881         return FALSE;
2882
2883     ChangeBackgroundColour();
2884
2885     return TRUE;
2886 }
2887
2888 bool wxWindow::SetForegroundColour(const wxColour& col)
2889 {
2890     if ( !wxWindowBase::SetForegroundColour(col) )
2891         return FALSE;
2892
2893     ChangeForegroundColour();
2894
2895     return TRUE;
2896 }
2897
2898 void wxWindow::ChangeFont(bool keepOriginalSize)
2899 {
2900     // Note that this causes the widget to be resized back
2901     // to its original size! We therefore have to set the size
2902     // back again. TODO: a better way in Motif?
2903     Widget w = (Widget) GetLabelWidget(); // Usually the main widget
2904     if (w && m_font.Ok())
2905     {
2906         int width, height, width1, height1;
2907         GetSize(& width, & height);
2908
2909         // lesstif 0.87 hangs here
2910 #ifndef LESSTIF_VERSION
2911         XtVaSetValues (w,
2912             XmNfontList, (XmFontList) m_font.GetFontList(1.0, XtDisplay(w)),
2913             NULL);
2914 #endif
2915
2916         GetSize(& width1, & height1);
2917         if (keepOriginalSize && (width != width1 || height != height1))
2918         {
2919             SetSize(-1, -1, width, height);
2920         }
2921     }
2922 }
2923
2924 // ----------------------------------------------------------------------------
2925 // global functions
2926 // ----------------------------------------------------------------------------
2927
2928 wxWindow *wxGetActiveWindow()
2929 {
2930     // TODO
2931     return NULL;
2932 }
2933
2934 // ----------------------------------------------------------------------------
2935 // wxNoOptimize: switch off size optimization
2936 // ----------------------------------------------------------------------------
2937
2938 int wxNoOptimize::ms_count = 0;
2939
2940
2941
2942