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