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 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __VMS
  24 #define XtDisplay XTDISPLAY
  25 #define XtWindow XTWINDOW
  26 #define XtScreen XTSCREEN
  27 #endif
  28
  29 #include "wx/setup.h"
  30 #include "wx/menu.h"
  31 #include "wx/dc.h"
  32 #include "wx/dcclient.h"
  33 #include "wx/utils.h"
  34 #include "wx/app.h"
  35 #include "wx/layout.h"
  36 #include "wx/button.h"
  37 #include "wx/settings.h"
  38 #include "wx/frame.h"
  39 #include "wx/scrolwin.h"
  40 #include "wx/module.h"
  41 #include "wx/menuitem.h"
  42 #include "wx/log.h"
  43 #include "wx/evtloop.h"
  44 #include "wx/hash.h"
  45
  46 #if  wxUSE_DRAG_AND_DROP
  47     #include "wx/dnd.h"
  48 #endif
  49
  50 // DoSetSizeIntr and DoMoveWindowIntr
  51 // PROBLEM:
  52 // under Motif composite controls (such as wxCalendarCtrl or generic wxSpinCtrl
  53 // did not work and/or segfaulted because
  54 // 1) wxWindow::Create calls SetSize,
  55 //    which results in a call to DoSetSize much earlier than in the other ports
  56 // 2) if wxWindow::Create is called (wxControl::Create calls it)
  57 //    then DoSetSize is never called, causing layout problems in composite
  58 //    controls
  59 //
  60 // SOLUTION:
  61 // 1) don't call SetSize, DoSetSize, DoMoveWindow, DoGetPosition,
  62 //    DoSetPosition directly or indirectly from wxWindow::Create
  63 // 2) call DoMoveWindow from DoSetSize, allowing controls to override it
  64
  65 #ifdef __VMS__
  66 #pragma message disable nosimpint
  67 #endif
  68 #include <Xm/Xm.h>
  69
  70 #include <Xm/DrawingA.h>
  71 #include <Xm/ScrolledW.h>
  72 #include <Xm/ScrollBar.h>
  73 #include <Xm/Frame.h>
  74 #include <Xm/Label.h>
  75 #include <Xm/RowColumn.h>           // for XmMenuPosition
  76 #ifdef __VMS__
  77 #pragma message enable nosimpint
  78 #endif
  79
  80 #include "wx/motif/private.h"
  81
  82 #include <string.h>
  83
  84 // ----------------------------------------------------------------------------
  85 // global variables for this module
  86 // ----------------------------------------------------------------------------
  87
  88 extern wxHashTable *wxWidgetHashTable;
  89 static wxWindow* g_captureWindow = NULL;
  90
  91
  92 // ----------------------------------------------------------------------------
  93 // private functions
  94 // ----------------------------------------------------------------------------
  95
  96 static void wxCanvasRepaintProc(Widget, XtPointer, XmDrawingAreaCallbackStruct * cbs);
  97 static void wxCanvasInputEvent(Widget drawingArea, XtPointer data, XmDrawingAreaCallbackStruct * cbs);
  98 static void wxCanvasMotionEvent(Widget, XButtonEvent * event);
  99 static void wxCanvasEnterLeave(Widget drawingArea, XtPointer clientData, XCrossingEvent * event);
 100 static void wxScrollBarCallback(Widget widget, XtPointer clientData,
 101                                 XmScrollBarCallbackStruct *cbs);
 102 static void wxPanelItemEventHandler(Widget    wid,
 103                                     XtPointer client_data,
 104                                     XEvent*   event,
 105                                     Boolean  *continueToDispatch);
 106
 107 // unused for now
 108 #if 0
 109
 110 // Helper function for 16-bit fonts
 111 static int str16len(const char *s)
 112 {
 113     int count = 0;
 114
 115     while (s[0] && s[1]) {
 116         count++;
 117         s += 2;
 118     }
 119
 120     return count;
 121 }
 122
 123 #endif // 0
 124
 125 // ----------------------------------------------------------------------------
 126 // macros
 127 // ----------------------------------------------------------------------------
 128
 129 #define event_left_is_down(x) ((x)->xbutton.state & Button1Mask)
 130 #define event_middle_is_down(x) ((x)->xbutton.state & Button2Mask)
 131 #define event_right_is_down(x) ((x)->xbutton.state & Button3Mask)
 132
 133 // ----------------------------------------------------------------------------
 134 // event tables
 135 // ----------------------------------------------------------------------------
 136
 137     IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxWindowBase)
 138
 139     BEGIN_EVENT_TABLE(wxWindow, wxWindowBase)
 140         EVT_SYS_COLOUR_CHANGED(wxWindow::OnSysColourChanged)
 141     END_EVENT_TABLE()
 142
 143 // ============================================================================
 144 // implementation
 145 // ============================================================================
 146
 147 // ----------------------------------------------------------------------------
 148 // helper functions
 149 // ----------------------------------------------------------------------------
 150
 151 void wxWindow::UnmanageAndDestroy(WXWidget widget)
 152 {
 153     Widget w = (Widget)widget;
 154     if ( w )
 155     {
 156         XtUnmanageChild(w);
 157         XtDestroyWidget(w);
 158     }
 159 }
 160
 161 bool wxWindow::MapOrUnmap(WXWidget widget, bool domap)
 162 {
 163     Widget w = (Widget)widget;
 164     if ( !w )
 165         return false;
 166
 167     //   Rationale: a lot of common operations (including but not
 168     // limited to moving, resizing and appending items to a listbox)
 169     // unmamange the widget, do their work, then manage it again.
 170     // This means that, for example adding an item to a listbox will show it,
 171     // or that most controls are shown every time they are moved or resized!
 172     XtSetMappedWhenManaged( w, domap );
 173
 174     // if the widget is not unmanaged, it still intercepts
 175     // mouse events, even if it is not mapped (and hence invisible)
 176     if ( domap )
 177     {
 178         XtManageChild(w);
 179         // XtMapWidget(w);
 180     }
 181     else
 182     {
 183         XtUnmanageChild(w);
 184         // XtUnmapWidget(w);
 185     }
 186
 187     return true;
 188 }
 189
 190 // ----------------------------------------------------------------------------
 191 // constructors
 192 // ----------------------------------------------------------------------------
 193
 194 void wxWindow::Init()
 195 {
 196     // Motif-specific
 197     m_needsRefresh = true;
 198     m_mainWidget = (WXWidget) 0;
 199
 200     m_winCaptured = false;
 201
 202     m_isShown = true;
 203
 204     m_hScrollBar =
 205     m_vScrollBar =
 206     m_borderWidget =
 207     m_scrolledWindow =
 208     m_drawingArea = (WXWidget) 0;
 209
 210     m_scrollPosX =
 211     m_scrollPosY = 0;
 212
 213     m_backingPixmap = (WXPixmap) 0;
 214     m_pixmapWidth =
 215     m_pixmapHeight = 0;
 216
 217     m_pixmapOffsetX =
 218     m_pixmapOffsetY = 0;
 219
 220     m_lastTS = 0;
 221     m_lastButton = 0;
 222 }
 223
 224 // real construction (Init() must have been called before!)
 225 bool wxWindow::Create(wxWindow *parent, wxWindowID id,
 226                       const wxPoint& pos,
 227                       const wxSize& size,
 228                       long style,
 229                       const wxString& name)
 230 {
 231     wxCHECK_MSG( parent, false, "can't create wxWindow without parent" );
 232
 233     CreateBase(parent, id, pos, size, style, wxDefaultValidator, name);
 234
 235     parent->AddChild(this);
 236
 237     m_backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 238     m_foregroundColour = *wxBLACK;
 239
 240     //// TODO: we should probably optimize by only creating a
 241     //// a drawing area if we have one or more scrollbars (wxVSCROLL/wxHSCROLL).
 242     //// But for now, let's simplify things by always creating the
 243     //// drawing area, since otherwise the translations are different.
 244
 245     // New translations for getting mouse motion feedback
 246     static const String translations = wxMOTIF_STR(
 247 "<Btn1Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 248 <Btn2Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 249 <Btn3Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 250 <BtnMotion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 251 <Btn1Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 252 <Btn2Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 253 <Btn3Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 254 <Btn1Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 255 <Btn2Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 256 <Btn3Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 257 <Motion>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 258 <EnterWindow>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 259 <LeaveWindow>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 260 <Key>: DrawingAreaInput()");
 261
 262     XtActionsRec actions[1];
 263     actions[0].string = wxMOTIF_STR("wxCanvasMotionEvent");
 264     actions[0].proc = (XtActionProc) wxCanvasMotionEvent;
 265     XtAppAddActions ((XtAppContext) wxTheApp->GetAppContext(), actions, 1);
 266
 267     Widget parentWidget = (Widget) parent->GetClientWidget();
 268     m_borderWidget = wxCreateBorderWidget( (WXWidget)parentWidget, style );
 269
 270     m_scrolledWindow = (WXWidget)XtVaCreateManagedWidget
 271                                  (
 272                                   "scrolledWindow",
 273                                   xmScrolledWindowWidgetClass,
 274                                   m_borderWidget ? (Widget) m_borderWidget
 275                                                  : parentWidget,
 276                                   XmNresizePolicy, XmRESIZE_NONE,
 277                                   XmNspacing, 0,
 278                                   XmNscrollingPolicy, XmAPPLICATION_DEFINED,
 279                                   //XmNscrollBarDisplayPolicy, XmAS_NEEDED,
 280                                   NULL
 281                                  );
 282
 283     XtTranslations ptr = XtParseTranslationTable(translations);
 284     m_drawingArea = (WXWidget)XtVaCreateWidget
 285                               (
 286                                name,
 287                                xmDrawingAreaWidgetClass, (Widget) m_scrolledWindow,
 288                                XmNunitType, XmPIXELS,
 289                                // XmNresizePolicy, XmRESIZE_ANY,
 290                                XmNresizePolicy, XmRESIZE_NONE,
 291                                XmNmarginHeight, 0,
 292                                XmNmarginWidth, 0,
 293                                XmNtranslations, ptr,
 294                                NULL
 295                               );
 296     XtFree((char *) ptr);
 297
 298 #if 0
 299     if (GetWindowStyleFlag() & wxOVERRIDE_KEY_TRANSLATIONS)
 300     {
 301         ptr = XtParseTranslationTable ("<Key>: DrawingAreaInput()");
 302         XtOverrideTranslations ((Widget) m_drawingArea, ptr);
 303         XtFree ((char *) ptr);
 304     }
 305 #endif // 0
 306
 307     wxAddWindowToTable((Widget) m_drawingArea, this);
 308     wxAddWindowToTable((Widget) m_scrolledWindow, this);
 309
 310     // This order is very important in Motif 1.2.1
 311     XtRealizeWidget ((Widget) m_scrolledWindow);
 312     XtRealizeWidget ((Widget) m_drawingArea);
 313     XtManageChild ((Widget) m_drawingArea);
 314
 315     ptr = XtParseTranslationTable("<Configure>: resize()");
 316     XtOverrideTranslations((Widget) m_drawingArea, ptr);
 317     XtFree ((char *) ptr);
 318
 319     XtAddCallback ((Widget) m_drawingArea, XmNexposeCallback, (XtCallbackProc) wxCanvasRepaintProc, (XtPointer) this);
 320     XtAddCallback ((Widget) m_drawingArea, XmNinputCallback, (XtCallbackProc) wxCanvasInputEvent, (XtPointer) this);
 321
 322     XtAddEventHandler(
 323                       (Widget)m_drawingArea,
 324                        PointerMotionHintMask | EnterWindowMask |
 325                        LeaveWindowMask | FocusChangeMask,
 326                        False,
 327                        (XtEventHandler) wxCanvasEnterLeave,
 328                        (XtPointer) this
 329                      );
 330
 331     // Scrolled widget needs to have its colour changed or we get a little blue
 332     // square where the scrollbars abutt
 333     wxColour backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 334     wxDoChangeBackgroundColour(m_scrolledWindow, backgroundColour, true);
 335     wxDoChangeBackgroundColour(m_drawingArea, backgroundColour, true);
 336
 337     XmScrolledWindowSetAreas(
 338                              (Widget)m_scrolledWindow,
 339                              (Widget) 0, (Widget) 0,
 340                              (Widget) m_drawingArea);
 341
 342     // Without this, the cursor may not be restored properly (e.g. in splitter
 343     // sample).
 344     SetCursor(*wxSTANDARD_CURSOR);
 345     SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
 346     DoSetSizeIntr(pos.x, pos.y, size.x,size.y, wxSIZE_AUTO, true);
 347     return true;
 348 }
 349
 350 // Destructor
 351 wxWindow::~wxWindow()
 352 {
 353     if (g_captureWindow == this)
 354         g_captureWindow = NULL;
 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     // If m_drawingArea, we're a fully-fledged window with drawing area,
 367     // scrollbars etc. (what wxCanvas used to be)
 368     if ( m_drawingArea )
 369     {
 370         // Destroy children before destroying self
 371         DestroyChildren();
 372
 373         if (m_backingPixmap)
 374             XFreePixmap (XtDisplay ((Widget) GetMainWidget()), (Pixmap) m_backingPixmap);
 375
 376         Widget w = (Widget) m_drawingArea;
 377         wxDeleteWindowFromTable(w);
 378
 379         if (w)
 380         {
 381             XtDestroyWidget(w);
 382             m_drawingArea = (WXWidget) 0;
 383         }
 384
 385         // Only if we're _really_ a canvas (not a dialog box/panel)
 386         if (m_scrolledWindow)
 387         {
 388             wxDeleteWindowFromTable((Widget) m_scrolledWindow);
 389         }
 390
 391         if (m_hScrollBar)
 392         {
 393             wxDeleteWindowFromTable((Widget) m_hScrollBar);
 394             XtUnmanageChild((Widget) m_hScrollBar);
 395         }
 396         if (m_vScrollBar)
 397         {
 398             wxDeleteWindowFromTable((Widget) m_vScrollBar);
 399             XtUnmanageChild((Widget) m_vScrollBar);
 400         }
 401
 402         if (m_hScrollBar)
 403             XtDestroyWidget((Widget) m_hScrollBar);
 404         if (m_vScrollBar)
 405             XtDestroyWidget((Widget) m_vScrollBar);
 406
 407         UnmanageAndDestroy(m_scrolledWindow);
 408
 409         if (m_borderWidget)
 410         {
 411             XtDestroyWidget ((Widget) m_borderWidget);
 412             m_borderWidget = (WXWidget) 0;
 413         }
 414     }
 415     else // Why wasn't this here before? JACS 8/3/2000
 416         DestroyChildren();
 417
 418
 419     // Destroy the window
 420     if (GetMainWidget())
 421     {
 422         // If this line (XtDestroyWidget) causes a crash, you may comment it out.
 423         // Child widgets will get destroyed automatically when a frame
 424         // or dialog is destroyed, but before that you may get some memory
 425         // leaks and potential layout problems if you delete and then add
 426         // child windows.
 427
 428         // GRG, Feb/2000: commented this out when adding support for
 429         //   wxSCROLL[WIN]_THUMBRELEASE events. Also it was reported
 430         //   that this call crashed wxMotif under OS/2, so it seems
 431         //   that leaving it out is the right thing to do.
 432         // SN, Feb/2000: newgrid/griddemo shows why it is needed :-(
 433         XtDestroyWidget((Widget) GetMainWidget());
 434         SetMainWidget((WXWidget) NULL);
 435     }
 436 }
 437
 438 // ----------------------------------------------------------------------------
 439 // scrollbar management
 440 // ----------------------------------------------------------------------------
 441
 442 WXWidget wxWindow::DoCreateScrollBar(WXWidget parent,
 443                                      wxOrientation orientation,
 444                                      void (*callback)())
 445 {
 446     int orient = ( orientation & wxHORIZONTAL ) ? XmHORIZONTAL : XmVERTICAL;
 447     Widget sb =
 448         XtVaCreateManagedWidget( "scrollBarWidget",
 449                                  xmScrollBarWidgetClass, (Widget)parent,
 450                                  XmNorientation, orient,
 451                                  XmNincrement, 1,
 452                                  XmNvalue, 0,
 453                                  NULL );
 454
 455     XtPointer o = (XtPointer)orientation;
 456     XtCallbackProc cb = (XtCallbackProc)callback;
 457
 458     XtAddCallback( sb, XmNvalueChangedCallback, cb, o );
 459     XtAddCallback( sb, XmNdragCallback, cb, o );
 460     XtAddCallback( sb, XmNincrementCallback, cb, o );
 461     XtAddCallback( sb, XmNdecrementCallback, cb, o );
 462     XtAddCallback( sb, XmNpageIncrementCallback, cb, o );
 463     XtAddCallback( sb, XmNpageDecrementCallback, cb, o );
 464     XtAddCallback( sb, XmNtoTopCallback, cb, o );
 465     XtAddCallback( sb, XmNtoBottomCallback, cb, o );
 466
 467     return (WXWidget)sb;
 468 }
 469
 470 // Helper function
 471 void wxWindow::CreateScrollbar(wxOrientation orientation)
 472 {
 473     wxCHECK_RET( m_drawingArea, "this window can't have scrollbars" );
 474
 475     XtVaSetValues( (Widget) m_scrolledWindow,
 476                    XmNresizePolicy, XmRESIZE_NONE,
 477                    NULL );
 478
 479     wxColour backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 480     // Add scrollbars if required
 481     if (orientation == wxHORIZONTAL)
 482     {
 483         m_hScrollBar = DoCreateScrollBar( m_scrolledWindow, wxHORIZONTAL,
 484                                           (void (*)())wxScrollBarCallback );
 485
 486         wxDoChangeBackgroundColour(m_hScrollBar, backgroundColour, true);
 487
 488         XtRealizeWidget( (Widget)m_hScrollBar );
 489
 490         XtVaSetValues((Widget) m_scrolledWindow,
 491             XmNhorizontalScrollBar, (Widget) m_hScrollBar,
 492             NULL);
 493
 494         wxAddWindowToTable( (Widget)m_hScrollBar, this );
 495     }
 496     else if (orientation == wxVERTICAL)
 497     {
 498         m_vScrollBar = DoCreateScrollBar( m_scrolledWindow, wxVERTICAL,
 499                                           (void (*)())wxScrollBarCallback );
 500
 501         wxDoChangeBackgroundColour(m_vScrollBar, backgroundColour, true);
 502
 503         XtRealizeWidget((Widget)m_vScrollBar);
 504
 505         XtVaSetValues((Widget) m_scrolledWindow,
 506             XmNverticalScrollBar, (Widget) m_vScrollBar,
 507             NULL);
 508
 509         wxAddWindowToTable( (Widget)m_vScrollBar, this );
 510     }
 511
 512     XtVaSetValues( (Widget) m_scrolledWindow,
 513                    XmNresizePolicy, XmRESIZE_ANY,
 514                    NULL );
 515 }
 516
 517 void wxWindow::DestroyScrollbar(wxOrientation orientation)
 518 {
 519     wxCHECK_RET( m_drawingArea, "this window can't have scrollbars" );
 520
 521     XtVaSetValues((Widget) m_scrolledWindow,
 522                   XmNresizePolicy, XmRESIZE_NONE,
 523                   NULL);
 524     String stringSB = orientation == wxHORIZONTAL ?
 525         XmNhorizontalScrollBar : XmNverticalScrollBar;
 526     WXWidget* widgetSB = orientation == wxHORIZONTAL ?
 527         &m_hScrollBar : &m_vScrollBar;
 528
 529     if( *widgetSB )
 530     {
 531         wxDeleteWindowFromTable( (Widget)*widgetSB );
 532         XtDestroyWidget( (Widget)*widgetSB );
 533         *widgetSB = (WXWidget)NULL;
 534     }
 535
 536     XtVaSetValues( (Widget)m_scrolledWindow,
 537                    stringSB, (Widget) 0,
 538                    NULL );
 539
 540     XtVaSetValues((Widget) m_scrolledWindow,
 541                   XmNresizePolicy, XmRESIZE_ANY,
 542                   NULL);
 543 }
 544
 545 // ---------------------------------------------------------------------------
 546 // basic operations
 547 // ---------------------------------------------------------------------------
 548
 549 void wxWindow::SetFocus()
 550 {
 551     Widget wMain = (Widget) GetMainWidget();
 552     XmProcessTraversal(wMain, XmTRAVERSE_CURRENT);
 553     XmProcessTraversal((Widget) GetMainWidget(), XmTRAVERSE_CURRENT);
 554 }
 555
 556 // Get the window with the focus
 557 wxWindow *wxWindowBase::DoFindFocus()
 558 {
 559     // TODO Problems:
 560     // (1) Can there be multiple focussed widgets in an application?
 561     // In which case we need to find the top-level window that's
 562     // currently active.
 563     // (2) The widget with the focus may not be in the widget table
 564     // depending on which widgets I put in the table
 565     wxWindow *winFocus = (wxWindow *)NULL;
 566     for ( wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst();
 567           node;
 568           node = node->GetNext() )
 569     {
 570         wxWindow *win = node->GetData();
 571
 572         Widget w = XmGetFocusWidget ((Widget) win->GetTopWidget());
 573
 574         if (w != (Widget) NULL)
 575         {
 576             winFocus = wxGetWindowFromTable(w);
 577             if ( winFocus )
 578                 break;
 579         }
 580     }
 581
 582     return winFocus;
 583 }
 584
 585 bool wxWindow::Enable(bool enable)
 586 {
 587     if ( !wxWindowBase::Enable(enable) )
 588         return false;
 589
 590     Widget wMain = (Widget)GetMainWidget();
 591     if ( wMain )
 592     {
 593         XtSetSensitive(wMain, enable);
 594         XmUpdateDisplay(wMain);
 595     }
 596
 597     return true;
 598 }
 599
 600 bool wxWindow::Show(bool show)
 601 {
 602     if ( !wxWindowBase::Show(show) )
 603         return false;
 604
 605     if (m_borderWidget || m_scrolledWindow)
 606     {
 607         MapOrUnmap(m_borderWidget ? m_borderWidget : m_scrolledWindow, show);
 608         // MapOrUnmap(m_drawingArea, show);
 609     }
 610     else
 611     {
 612         if ( !MapOrUnmap(GetTopWidget(), show) )
 613             MapOrUnmap(GetMainWidget(), show);
 614     }
 615
 616     return true;
 617 }
 618
 619 // Raise the window to the top of the Z order
 620 void wxWindow::Raise()
 621 {
 622     Widget wTop = (Widget) GetTopWidget();
 623     Window window = XtWindow(wTop);
 624     XRaiseWindow(XtDisplay(wTop), window);
 625 }
 626
 627 // Lower the window to the bottom of the Z order
 628 void wxWindow::Lower()
 629 {
 630     Widget wTop = (Widget) GetTopWidget();
 631     Window window = XtWindow(wTop);
 632     XLowerWindow(XtDisplay(wTop), window);
 633 }
 634
 635 void wxWindow::SetTitle(const wxString& title)
 636 {
 637     XtVaSetValues((Widget)GetMainWidget(), XmNtitle, title.c_str(), NULL);
 638 }
 639
 640 wxString wxWindow::GetTitle() const
 641 {
 642     char *title;
 643     XtVaGetValues((Widget)GetMainWidget(), XmNtitle, &title, NULL);
 644
 645     return wxString(title);
 646 }
 647
 648 void wxWindow::DoCaptureMouse()
 649 {
 650     g_captureWindow = this;
 651     if ( m_winCaptured )
 652         return;
 653
 654     Widget wMain = (Widget)GetMainWidget();
 655     if ( wMain )
 656         XtAddGrab(wMain, True, False);
 657
 658     m_winCaptured = true;
 659 }
 660
 661 void wxWindow::DoReleaseMouse()
 662 {
 663     g_captureWindow = NULL;
 664     if ( !m_winCaptured )
 665         return;
 666
 667     Widget wMain = (Widget)GetMainWidget();
 668     if ( wMain )
 669         XtRemoveGrab(wMain);
 670
 671     m_winCaptured = false;
 672 }
 673
 674 bool wxWindow::SetFont(const wxFont& font)
 675 {
 676     if ( !wxWindowBase::SetFont(font) )
 677     {
 678         // nothing to do
 679         return false;
 680     }
 681
 682     ChangeFont();
 683
 684     return true;
 685 }
 686
 687 bool wxWindow::SetCursor(const wxCursor& cursor)
 688 {
 689     if ( !wxWindowBase::SetCursor(cursor) )
 690     {
 691         // no change
 692         return false;
 693     }
 694
 695     //    wxASSERT_MSG( m_cursor.Ok(),
 696     //                  wxT("cursor must be valid after call to the base version"));
 697     wxCursor* cursor2 = NULL;
 698     if (m_cursor.Ok())
 699         cursor2 = & m_cursor;
 700     else
 701         cursor2 = wxSTANDARD_CURSOR;
 702
 703     WXDisplay *dpy = GetXDisplay();
 704     WXCursor x_cursor = cursor2->GetXCursor(dpy);
 705
 706     Widget w = (Widget) GetMainWidget();
 707     Window win = XtWindow(w);
 708     XDefineCursor((Display*) dpy, win, (Cursor) x_cursor);
 709
 710     return true;
 711 }
 712
 713 // Coordinates relative to the window
 714 void wxWindow::WarpPointer (int x, int y)
 715 {
 716     Widget wClient = (Widget)GetClientWidget();
 717
 718     XWarpPointer(XtDisplay(wClient), None, XtWindow(wClient), 0, 0, 0, 0, x, y);
 719 }
 720
 721 // ---------------------------------------------------------------------------
 722 // scrolling stuff
 723 // ---------------------------------------------------------------------------
 724
 725 int wxWindow::GetScrollPos(int orient) const
 726 {
 727     if (orient == wxHORIZONTAL)
 728         return m_scrollPosX;
 729     else
 730         return m_scrollPosY;
 731
 732 #if 0
 733     Widget scrollBar = (Widget) ((orient == wxHORIZONTAL) ? m_hScrollBar : m_vScrollBar);
 734     if (scrollBar)
 735     {
 736         int pos;
 737         XtVaGetValues(scrollBar, XmNvalue, &pos, NULL);
 738         return pos;
 739     }
 740     else
 741         return 0;
 742 #endif // 0
 743 }
 744
 745 // This now returns the whole range, not just the number of positions that we
 746 // can scroll.
 747 int wxWindow::GetScrollRange(int orient) const
 748 {
 749     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 750     // CE scintilla windows don't always have these scrollbars
 751     // and it tends to pile up a whole bunch of asserts
 752     //wxCHECK_MSG( scrollBar, 0, "no such scrollbar" );
 753
 754     int range = 0;
 755     if (scrollBar)
 756         XtVaGetValues(scrollBar, XmNmaximum, &range, NULL);
 757     return range;
 758 }
 759
 760 int wxWindow::GetScrollThumb(int orient) const
 761 {
 762     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 763     //wxCHECK_MSG( scrollBar, 0, "no such scrollbar" );
 764
 765     int thumb = 0;
 766     if (scrollBar)
 767         XtVaGetValues(scrollBar, XmNsliderSize, &thumb, NULL);
 768     return thumb;
 769 }
 770
 771 void wxWindow::SetScrollPos(int orient, int pos, bool WXUNUSED(refresh))
 772 {
 773     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 774
 775     if ( scrollBar )
 776     {
 777         XtVaSetValues (scrollBar, XmNvalue, pos, NULL);
 778     }
 779
 780     SetInternalScrollPos((wxOrientation)orient, pos);
 781 }
 782
 783 // New function that will replace some of the above.
 784 void wxWindow::SetScrollbar(int orient, int pos, int thumbVisible,
 785                             int range, bool WXUNUSED(refresh))
 786 {
 787     int oldW, oldH;
 788     GetSize(& oldW, & oldH);
 789
 790     if (range == 0)
 791         range = 1;
 792     if (thumbVisible == 0)
 793         thumbVisible = 1;
 794
 795     if (thumbVisible > range)
 796         thumbVisible = range;
 797
 798     // Save the old state to see if it changed
 799     WXWidget oldScrollBar = GetScrollbar((wxOrientation)orient);
 800
 801     if (orient == wxHORIZONTAL)
 802     {
 803         if (thumbVisible == range)
 804         {
 805             if (m_hScrollBar)
 806                 DestroyScrollbar(wxHORIZONTAL);
 807         }
 808         else
 809         {
 810             if (!m_hScrollBar)
 811                 CreateScrollbar(wxHORIZONTAL);
 812         }
 813     }
 814     if (orient == wxVERTICAL)
 815     {
 816         if (thumbVisible == range)
 817         {
 818             if (m_vScrollBar)
 819                 DestroyScrollbar(wxVERTICAL);
 820         }
 821         else
 822         {
 823             if (!m_vScrollBar)
 824                 CreateScrollbar(wxVERTICAL);
 825         }
 826     }
 827     WXWidget newScrollBar =  GetScrollbar((wxOrientation)orient);
 828
 829     if (oldScrollBar != newScrollBar)
 830     {
 831         // This is important! Without it, scrollbars misbehave badly.
 832         XtUnrealizeWidget((Widget) m_scrolledWindow);
 833         XmScrolledWindowSetAreas ((Widget) m_scrolledWindow, (Widget) m_hScrollBar, (Widget) m_vScrollBar, (Widget) m_drawingArea);
 834         XtRealizeWidget((Widget) m_scrolledWindow);
 835         XtManageChild((Widget) m_scrolledWindow);
 836     }
 837
 838     if (newScrollBar)
 839     {
 840         XtVaSetValues((Widget) newScrollBar,
 841         XmNvalue, pos,
 842         XmNminimum, 0,
 843         XmNmaximum, range,
 844         XmNsliderSize, thumbVisible,
 845         NULL);
 846     }
 847
 848     SetInternalScrollPos((wxOrientation)orient, pos);
 849
 850     int newW, newH;
 851     GetSize(& newW, & newH);
 852
 853     // Adjusting scrollbars can resize the canvas accidentally
 854     if (newW != oldW || newH != oldH)
 855         SetSize(-1, -1, oldW, oldH);
 856 }
 857
 858 // Does a physical scroll
 859 void wxWindow::ScrollWindow(int dx, int dy, const wxRect *rect)
 860 {
 861     int x, y, w, h;
 862     if (rect)
 863     {
 864         // Use specified rectangle
 865         x = rect->x; y = rect->y; w = rect->width; h = rect->height;
 866     }
 867     else
 868     {
 869         // Use whole client area
 870         x = 0; y = 0;
 871         GetClientSize(& w, & h);
 872     }
 873
 874     int x1 = (dx >= 0) ? x : x - dx;
 875     int y1 = (dy >= 0) ? y : y - dy;
 876     int w1 = w - abs(dx);
 877     int h1 = h - abs(dy);
 878     int x2 = (dx >= 0) ? x + dx : x;
 879     int y2 = (dy >= 0) ? y + dy : y;
 880
 881     wxClientDC dc(this);
 882
 883     dc.SetLogicalFunction (wxCOPY);
 884
 885     Widget widget = (Widget) GetMainWidget();
 886     Window window = XtWindow(widget);
 887     Display* display = XtDisplay(widget);
 888
 889     XCopyArea(display, window, window, (GC) dc.GetGC(),
 890               x1, y1, w1, h1, x2, y2);
 891
 892     dc.SetAutoSetting(true);
 893     wxBrush brush(GetBackgroundColour(), wxSOLID);
 894     dc.SetBrush(brush); // FIXME: needed?
 895
 896     wxWindowList::compatibility_iterator cnode = m_children.GetFirst();
 897     while (cnode)
 898     {
 899         wxWindow *child = cnode->GetData();
 900         int sx = 0;
 901         int sy = 0;
 902         child->GetSize( &sx, &sy );
 903         wxPoint pos( child->GetPosition() );
 904         child->SetSize( pos.x + dx, pos.y + dy, sx, sy, wxSIZE_ALLOW_MINUS_ONE );
 905         cnode = cnode->GetNext();
 906     }
 907
 908     // We'll add rectangles to the list of update rectangles according to which
 909     // bits we've exposed.
 910     wxList updateRects;
 911
 912     if (dx > 0)
 913     {
 914         wxRect *rect = new wxRect;
 915         rect->x = x;
 916         rect->y = y;
 917         rect->width = dx;
 918         rect->height = h;
 919
 920         XFillRectangle(display, window,
 921             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
 922
 923         rect->x = rect->x;
 924         rect->y = rect->y;
 925         rect->width = rect->width;
 926         rect->height = rect->height;
 927
 928         updateRects.Append((wxObject*) rect);
 929     }
 930     else if (dx < 0)
 931     {
 932         wxRect *rect = new wxRect;
 933
 934         rect->x = x + w + dx;
 935         rect->y = y;
 936         rect->width = -dx;
 937         rect->height = h;
 938
 939         XFillRectangle(display, window,
 940             (GC) dc.GetGC(), rect->x, rect->y, rect->width,
 941             rect->height);
 942
 943         rect->x = rect->x;
 944         rect->y = rect->y;
 945         rect->width = rect->width;
 946         rect->height = rect->height;
 947
 948         updateRects.Append((wxObject*) rect);
 949     }
 950     if (dy > 0)
 951     {
 952         wxRect *rect = new wxRect;
 953
 954         rect->x = x;
 955         rect->y = y;
 956         rect->width = w;
 957         rect->height = dy;
 958
 959         XFillRectangle(display, window,
 960             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
 961
 962         rect->x = rect->x;
 963         rect->y = rect->y;
 964         rect->width = rect->width;
 965         rect->height = rect->height;
 966
 967         updateRects.Append((wxObject*) rect);
 968     }
 969     else if (dy < 0)
 970     {
 971         wxRect *rect = new wxRect;
 972
 973         rect->x = x;
 974         rect->y = y + h + dy;
 975         rect->width = w;
 976         rect->height = -dy;
 977
 978         XFillRectangle(display, window,
 979             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
 980
 981         rect->x = rect->x;
 982         rect->y = rect->y;
 983         rect->width = rect->width;
 984         rect->height = rect->height;
 985
 986         updateRects.Append((wxObject*) rect);
 987     }
 988     dc.SetBrush(wxNullBrush);
 989
 990     // Now send expose events
 991
 992     wxList::compatibility_iterator  node = updateRects.GetFirst();
 993     while (node)
 994     {
 995         wxRect* rect = (wxRect*) node->GetData();
 996         XExposeEvent event;
 997
 998         event.type = Expose;
 999         event.display = display;
1000         event.send_event = True;
1001         event.window = window;
1002
1003         event.x = rect->x;
1004         event.y = rect->y;
1005         event.width = rect->width;
1006         event.height = rect->height;
1007
1008         event.count = 0;
1009
1010         XSendEvent(display, window, False, ExposureMask, (XEvent *)&event);
1011
1012         node = node->GetNext();
1013
1014     }
1015
1016     // Delete the update rects
1017     node = updateRects.GetFirst();
1018     while (node)
1019     {
1020         wxRect* rect = (wxRect*) node->GetData();
1021         delete rect;
1022         node = node->GetNext();
1023     }
1024
1025     XmUpdateDisplay((Widget) GetMainWidget());
1026 }
1027
1028 // ---------------------------------------------------------------------------
1029 // drag and drop
1030 // ---------------------------------------------------------------------------
1031
1032 #if wxUSE_DRAG_AND_DROP
1033
1034 void wxWindow::SetDropTarget(wxDropTarget * WXUNUSED(pDropTarget))
1035 {
1036     // TODO
1037 }
1038
1039 #endif
1040
1041 // Old style file-manager drag&drop
1042 void wxWindow::DragAcceptFiles(bool WXUNUSED(accept))
1043 {
1044     // TODO
1045 }
1046
1047 // ----------------------------------------------------------------------------
1048 // tooltips
1049 // ----------------------------------------------------------------------------
1050
1051 #if wxUSE_TOOLTIPS
1052
1053 void wxWindow::DoSetToolTip(wxToolTip * WXUNUSED(tooltip))
1054 {
1055     // TODO
1056 }
1057
1058 #endif // wxUSE_TOOLTIPS
1059
1060 // ----------------------------------------------------------------------------
1061 // popup menus
1062 // ----------------------------------------------------------------------------
1063
1064 #if wxUSE_MENUS
1065
1066 bool wxWindow::DoPopupMenu(wxMenu *menu, int x, int y)
1067 {
1068     if ( x == -1 && y == -1 )
1069     {
1070         wxPoint mouse = ScreenToClient(wxGetMousePosition());
1071         x = mouse.x; y = mouse.y;
1072     }
1073
1074     Widget widget = (Widget) GetMainWidget();
1075
1076     /* The menuId field seems to be usused, so we'll use it to
1077     indicate whether a menu is popped up or not:
1078     0: Not currently created as a popup
1079     -1: Created as a popup, but not active
1080     1: Active popup.
1081     */
1082
1083     if (menu->GetParent() && (menu->GetId() != -1))
1084         return false;
1085
1086     if (menu->GetMainWidget())
1087     {
1088         menu->DestroyMenu(true);
1089     }
1090
1091     menu->SetId(1); /* Mark as popped-up */
1092     menu->CreateMenu(NULL, widget, menu);
1093     menu->SetInvokingWindow(this);
1094
1095     menu->UpdateUI();
1096
1097     //  menu->SetParent(parent);
1098     //  parent->children->Append(menu);  // Store menu for later deletion
1099
1100     Widget menuWidget = (Widget) menu->GetMainWidget();
1101
1102     int rootX = 0;
1103     int rootY = 0;
1104
1105     int deviceX = x;
1106     int deviceY = y;
1107     /*
1108     if (this->IsKindOf(CLASSINFO(wxCanvas)))
1109     {
1110     wxCanvas *canvas = (wxCanvas *) this;
1111     deviceX = canvas->GetDC ()->LogicalToDeviceX (x);
1112     deviceY = canvas->GetDC ()->LogicalToDeviceY (y);
1113     }
1114     */
1115
1116     Display *display = XtDisplay (widget);
1117     Window rootWindow = RootWindowOfScreen (XtScreen((Widget)widget));
1118     Window thisWindow = XtWindow (widget);
1119     Window childWindow;
1120     XTranslateCoordinates (display, thisWindow, rootWindow, (int) deviceX, (int) deviceY,
1121         &rootX, &rootY, &childWindow);
1122
1123     XButtonPressedEvent event;
1124     event.type = ButtonPress;
1125     event.button = 1;
1126
1127     event.x = deviceX;
1128     event.y = deviceY;
1129
1130     event.x_root = rootX;
1131     event.y_root = rootY;
1132
1133     XmMenuPosition (menuWidget, &event);
1134     XtManageChild (menuWidget);
1135
1136     // The ID of a pop-up menu is 1 when active, and is set to 0 by the
1137     // idle-time destroy routine.
1138     // Waiting until this ID changes causes this function to block until
1139     // the menu has been dismissed and the widgets cleaned up.
1140     // In other words, once this routine returns, it is safe to delete
1141     // the menu object.
1142     // Ian Brown <ian.brown@printsoft.de>
1143
1144     wxEventLoop evtLoop;
1145
1146     while (menu->GetId() == 1)
1147     {
1148         wxDoEventLoopIteration( evtLoop );
1149     }
1150
1151     return true;
1152 }
1153
1154 #endif
1155
1156 // ---------------------------------------------------------------------------
1157 // moving and resizing
1158 // ---------------------------------------------------------------------------
1159
1160 bool wxWindow::PreResize()
1161 {
1162     return true;
1163 }
1164
1165 // Get total size
1166 void wxWindow::DoGetSize(int *x, int *y) const
1167 {
1168     Widget widget = (Widget)( !m_drawingArea ? GetTopWidget() :
1169                               ( m_borderWidget ? m_borderWidget :
1170                                 m_scrolledWindow ? m_scrolledWindow :
1171                                 m_drawingArea ) );
1172     Dimension xx, yy;
1173
1174     XtVaGetValues( widget,
1175                    XmNwidth, &xx,
1176                    XmNheight, &yy,
1177                    NULL );
1178     if(x) *x = xx;
1179     if(y) *y = yy;
1180 }
1181
1182 void wxWindow::DoGetPosition(int *x, int *y) const
1183 {
1184     Widget widget = (Widget)
1185         ( m_drawingArea ?
1186           ( m_borderWidget ? m_borderWidget : m_scrolledWindow ) :
1187           GetTopWidget() );
1188
1189     Position xx, yy;
1190     XtVaGetValues(widget, XmNx, &xx, XmNy, &yy, NULL);
1191
1192     // We may be faking the client origin. So a window that's really at (0, 30)
1193     // may appear (to wxWin apps) to be at (0, 0).
1194     if (GetParent())
1195     {
1196         wxPoint pt(GetParent()->GetClientAreaOrigin());
1197         xx -= pt.x;
1198         yy -= pt.y;
1199     }
1200
1201     if(x) *x = xx;
1202     if(y) *y = yy;
1203 }
1204
1205 void wxWindow::DoScreenToClient(int *x, int *y) const
1206 {
1207     Widget widget = (Widget) GetClientWidget();
1208     Display *display = XtDisplay((Widget) GetMainWidget());
1209     Window rootWindow = RootWindowOfScreen(XtScreen(widget));
1210     Window thisWindow = XtWindow(widget);
1211
1212     Window childWindow;
1213     int xx = *x;
1214     int yy = *y;
1215     XTranslateCoordinates(display, rootWindow, thisWindow, xx, yy, x, y, &childWindow);
1216 }
1217
1218 void wxWindow::DoClientToScreen(int *x, int *y) const
1219 {
1220     Widget widget = (Widget) GetClientWidget();
1221     Display *display = XtDisplay(widget);
1222     Window rootWindow = RootWindowOfScreen(XtScreen(widget));
1223     Window thisWindow = XtWindow(widget);
1224
1225     Window childWindow;
1226     int xx = *x;
1227     int yy = *y;
1228     XTranslateCoordinates(display, thisWindow, rootWindow, xx, yy, x, y, &childWindow);
1229 }
1230
1231
1232 // Get size *available for subwindows* i.e. excluding menu bar etc.
1233 void wxWindow::DoGetClientSize(int *x, int *y) const
1234 {
1235     Widget widget = (Widget) GetClientWidget();
1236     Dimension xx, yy;
1237     XtVaGetValues(widget, XmNwidth, &xx, XmNheight, &yy, NULL);
1238     if(x) *x = xx; if(y) *y = yy;
1239 }
1240
1241 void wxWindow::DoSetSize(int x, int y, int width, int height, int sizeFlags)
1242 {
1243     DoSetSizeIntr(x, y, width, height, sizeFlags, false);
1244 }
1245
1246 void wxWindow::DoSetSizeIntr(int x, int y, int width, int height,
1247                              int sizeFlags, bool fromCtor)
1248 {
1249     // A bit of optimization to help sort out the flickers.
1250     int oldX = -1, oldY = -1, oldW = -1, oldH = -1;
1251     if( !fromCtor )
1252     {
1253         GetSize(& oldW, & oldH);
1254         GetPosition(& oldX, & oldY);
1255     }
1256
1257     if ( !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
1258     {
1259         if ( x == -1 )
1260             x = oldX;
1261         if ( y == -1 )
1262             y = oldY;
1263     }
1264
1265     wxSize size(-1, -1);
1266     if ( width <= 0 )
1267     {
1268         if ( ( sizeFlags & wxSIZE_AUTO_WIDTH ) && !fromCtor )
1269         {
1270             size = DoGetBestSize();
1271             width = size.x;
1272         }
1273         else
1274         {
1275             width = oldW;
1276         }
1277     }
1278
1279     if ( height == -1 )
1280     {
1281         if( ( sizeFlags & wxSIZE_AUTO_HEIGHT ) && !fromCtor )
1282         {
1283             if( size.x == -1 ) size = DoGetBestSize();
1284             height = size.y;
1285         }
1286         else
1287         {
1288             height = oldH;
1289         }
1290     }
1291
1292     if ( x != oldX || y != oldY || width != oldW || height != oldH
1293          || !wxNoOptimize::CanOptimize() )
1294     {
1295         if (m_drawingArea)
1296         {
1297             int flags = 0;
1298
1299             if (x > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
1300                 flags |= wxMOVE_X;
1301
1302             if (y > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
1303                 flags |= wxMOVE_Y;
1304
1305             if (width > 0)
1306                 flags |= wxMOVE_WIDTH;
1307
1308             if (height > 0)
1309                 flags |= wxMOVE_HEIGHT;
1310
1311             int xx = x; int yy = y;
1312             AdjustForParentClientOrigin(xx, yy, sizeFlags);
1313             if( !fromCtor )
1314                 DoMoveWindow( xx, yy, width, height );
1315             else
1316                 DoMoveWindowIntr( xx, yy, width, height, flags );
1317
1318             return;
1319         }
1320
1321         Widget widget = (Widget) GetTopWidget();
1322         if (!widget)
1323             return;
1324
1325         bool managed = XtIsManaged( widget );
1326         if (managed)
1327             XtUnmanageChild(widget);
1328
1329         int xx = x;
1330         int yy = y;
1331         AdjustForParentClientOrigin(xx, yy, sizeFlags);
1332
1333         DoMoveWindow(xx, yy, width, height);
1334
1335         if (managed)
1336             XtManageChild(widget);
1337     }
1338 }
1339
1340 void wxWindow::DoSetClientSize(int width, int height)
1341 {
1342     if (m_drawingArea)
1343     {
1344         Widget drawingArea = (Widget) m_drawingArea;
1345
1346         XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_ANY, NULL);
1347
1348         if (width > -1)
1349             XtVaSetValues(drawingArea, XmNwidth, width, NULL);
1350         if (height > -1)
1351             XtVaSetValues(drawingArea, XmNheight, height, NULL);
1352
1353         XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_NONE, NULL);
1354         return;
1355     }
1356
1357     Widget widget = (Widget) GetTopWidget();
1358
1359     if (width > -1)
1360         XtVaSetValues(widget, XmNwidth, width, NULL);
1361     if (height > -1)
1362         XtVaSetValues(widget, XmNheight, height, NULL);
1363 }
1364
1365 void wxWindow::DoMoveWindowIntr(int xx, int yy, int w, int h,
1366                                 int flags)
1367 {
1368     if (m_drawingArea)
1369     {
1370         Widget drawingArea = (Widget) m_drawingArea;
1371         Widget borderOrScrolled = m_borderWidget ?
1372             (Widget) m_borderWidget :
1373             (Widget) m_scrolledWindow;
1374
1375         bool managed = XtIsManaged(borderOrScrolled);
1376         if (managed)
1377             XtUnmanageChild (borderOrScrolled);
1378         XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_ANY, NULL);
1379
1380         if (flags & wxMOVE_X)
1381             XtVaSetValues (borderOrScrolled,
1382                            XmNx, xx,
1383                            NULL);
1384         if (flags & wxMOVE_Y)
1385             XtVaSetValues (borderOrScrolled,
1386                            XmNy, yy,
1387                            NULL);
1388
1389         if (flags & wxMOVE_WIDTH)
1390         {
1391             if (m_borderWidget)
1392             {
1393                 XtVaSetValues ((Widget) m_borderWidget, XmNwidth, w, NULL);
1394                 short thick, margin;
1395                 XtVaGetValues ((Widget) m_borderWidget,
1396                                XmNshadowThickness, &thick,
1397                                XmNmarginWidth, &margin,
1398                                NULL);
1399                 w -= 2 * (thick + margin);
1400             }
1401
1402             if( w < 1 ) w = 1;
1403             XtVaSetValues ((Widget) m_scrolledWindow, XmNwidth, w, NULL);
1404         }
1405
1406         if (flags & wxMOVE_HEIGHT)
1407         {
1408             if (m_borderWidget)
1409             {
1410                 XtVaSetValues ((Widget) m_borderWidget, XmNheight, h, NULL);
1411                 short thick, margin;
1412                 XtVaGetValues ((Widget) m_borderWidget,
1413                                XmNshadowThickness, &thick,
1414                                XmNmarginHeight, &margin,
1415                                NULL);
1416                 h -= 2 * (thick + margin);
1417             }
1418
1419             if( h < 1 ) h = 1;
1420             XtVaSetValues ((Widget) m_scrolledWindow, XmNheight, h, NULL);
1421         }
1422
1423         if (managed)
1424             XtManageChild (borderOrScrolled);
1425         XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_NONE, NULL);
1426     }
1427     else
1428     {
1429         if( xx < 0 ) xx = 0;
1430         if( yy < 0 ) yy = 0;
1431         if( w < 1 ) w = 1;
1432         if( h < 1 ) h = 1;
1433
1434         XtVaSetValues((Widget)GetTopWidget(),
1435                       XmNx, xx,
1436                       XmNy, yy,
1437                       XmNwidth, w,
1438                       XmNheight, h,
1439                       NULL);
1440     }
1441 }
1442
1443 void wxWindow::DoMoveWindow(int x, int y, int width, int height)
1444 {
1445     DoMoveWindowIntr (x, y, width, height,
1446                       wxMOVE_X|wxMOVE_Y|wxMOVE_WIDTH|wxMOVE_HEIGHT);
1447 }
1448
1449 // ---------------------------------------------------------------------------
1450 // text metrics
1451 // ---------------------------------------------------------------------------
1452
1453 int wxWindow::GetCharHeight() const
1454 {
1455     wxCHECK_MSG( m_font.Ok(), 0, "valid window font needed" );
1456
1457     int height;
1458
1459     wxGetTextExtent (GetXDisplay(), m_font, 1.0,
1460                      "x", NULL, &height, NULL, NULL);
1461
1462     return height;
1463 }
1464
1465 int wxWindow::GetCharWidth() const
1466 {
1467     wxCHECK_MSG( m_font.Ok(), 0, "valid window font needed" );
1468
1469     int width;
1470
1471     wxGetTextExtent (GetXDisplay(), m_font, 1.0,
1472                      "x", &width, NULL, NULL, NULL);
1473
1474     return width;
1475 }
1476
1477 void wxWindow::GetTextExtent(const wxString& string,
1478                              int *x, int *y,
1479                              int *descent, int *externalLeading,
1480                              const wxFont *theFont) const
1481 {
1482     const wxFont *fontToUse = theFont ? theFont : &m_font;
1483
1484     wxCHECK_RET( fontToUse->Ok(), "valid window font needed" );
1485
1486     if (externalLeading)
1487         *externalLeading = 0;
1488     wxGetTextExtent (GetXDisplay(), *fontToUse, 1.0,
1489                      string, x, y, NULL, descent);
1490 }
1491
1492 // ----------------------------------------------------------------------------
1493 // painting
1494 // ----------------------------------------------------------------------------
1495
1496 void wxWindow::AddUpdateRect(int x, int y, int w, int h)
1497 {
1498     m_updateRegion.Union( x, y, w, h );
1499 }
1500
1501 void wxWindow::Refresh(bool eraseBack, const wxRect *rect)
1502 {
1503     m_needsRefresh = true;
1504     Display *display = XtDisplay((Widget) GetMainWidget());
1505     Window thisWindow = XtWindow((Widget) GetMainWidget());
1506
1507     XExposeEvent dummyEvent;
1508     int width, height;
1509     GetSize(&width, &height);
1510
1511     dummyEvent.type = Expose;
1512     dummyEvent.display = display;
1513     dummyEvent.send_event = True;
1514     dummyEvent.window = thisWindow;
1515     if (rect)
1516     {
1517         dummyEvent.x = rect->x;
1518         dummyEvent.y = rect->y;
1519         dummyEvent.width = rect->width;
1520         dummyEvent.height = rect->height;
1521     }
1522     else
1523     {
1524         dummyEvent.x = 0;
1525         dummyEvent.y = 0;
1526         dummyEvent.width = width;
1527         dummyEvent.height = height;
1528     }
1529     dummyEvent.count = 0;
1530
1531     if (eraseBack)
1532     {
1533         wxClientDC dc(this);
1534         wxBrush backgroundBrush(GetBackgroundColour(), wxSOLID);
1535         dc.SetBackground(backgroundBrush);
1536         if (rect)
1537             dc.Clear(*rect);
1538         else
1539             dc.Clear();
1540     }
1541
1542     XSendEvent(display, thisWindow, False, ExposureMask, (XEvent *)&dummyEvent);
1543 }
1544
1545 void wxWindow::DoPaint()
1546 {
1547     //TODO : make a temporary gc so we can do the XCopyArea below
1548     if (m_backingPixmap && !m_needsRefresh)
1549     {
1550       wxPaintDC dc(this);
1551
1552       GC tempGC = (GC) dc.GetBackingGC();
1553
1554       Widget widget = (Widget) GetMainWidget();
1555
1556       int scrollPosX = 0;
1557       int scrollPosY = 0;
1558
1559       // We have to test whether it's a wxScrolledWindow (hack!) because
1560       // otherwise we don't know how many pixels have been scrolled. We might
1561       // solve this in the future by defining virtual wxWindow functions to get
1562       // the scroll position in pixels. Or, each kind of scrolled window has to
1563       // implement backing stores itself, using generic wxWidgets code.
1564       wxScrolledWindow* scrolledWindow = wxDynamicCast(this, wxScrolledWindow);
1565       if ( scrolledWindow )
1566       {
1567           int x, y;
1568           scrolledWindow->CalcScrolledPosition(0, 0, &x, &y);
1569
1570           scrollPosX = - x;
1571           scrollPosY = - y;
1572       }
1573
1574       // TODO: This could be optimized further by only copying the areas in the
1575       //       current update region.
1576
1577       // Only blit the part visible in the client area. The backing pixmap
1578       // always starts at 0, 0 but we may be looking at only a portion of it.
1579       wxSize clientArea = GetClientSize();
1580       int toBlitX = m_pixmapWidth - scrollPosX;
1581       int toBlitY = m_pixmapHeight - scrollPosY;
1582
1583       // Copy whichever is samller, the amount of pixmap we have to copy,
1584       // or the size of the client area.
1585       toBlitX = wxMin(toBlitX, clientArea.x);
1586       toBlitY = wxMin(toBlitY, clientArea.y);
1587
1588       // Make sure we're not negative
1589       toBlitX = wxMax(0, toBlitX);
1590       toBlitY = wxMax(0, toBlitY);
1591
1592       XCopyArea
1593       (
1594        XtDisplay(widget),
1595        (Pixmap) m_backingPixmap,
1596        XtWindow (widget),
1597        tempGC,
1598        scrollPosX, scrollPosY, // Start at the scroll position
1599        toBlitX, toBlitY,       // How much of the pixmap to copy
1600        0, 0                    // Destination
1601       );
1602     }
1603     else
1604     {
1605         wxWindowDC dc(this);
1606         // Set an erase event first
1607         wxEraseEvent eraseEvent(GetId(), &dc);
1608         eraseEvent.SetEventObject(this);
1609         GetEventHandler()->ProcessEvent(eraseEvent);
1610
1611         wxPaintEvent event(GetId());
1612         event.SetEventObject(this);
1613         GetEventHandler()->ProcessEvent(event);
1614
1615         m_needsRefresh = false;
1616     }
1617 }
1618
1619 // ----------------------------------------------------------------------------
1620 // event handlers
1621 // ----------------------------------------------------------------------------
1622
1623 // Responds to colour changes: passes event on to children.
1624 void wxWindow::OnSysColourChanged(wxSysColourChangedEvent& event)
1625 {
1626     wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1627     while ( node )
1628     {
1629         // Only propagate to non-top-level windows
1630         wxWindow *win = node->GetData();
1631         if ( win->GetParent() )
1632         {
1633             wxSysColourChangedEvent event2;
1634             event.SetEventObject(win);
1635             win->GetEventHandler()->ProcessEvent(event2);
1636         }
1637
1638         node = node->GetNext();
1639     }
1640 }
1641
1642 void wxWindow::OnInternalIdle()
1643 {
1644     // This calls the UI-update mechanism (querying windows for
1645     // menu/toolbar/control state information)
1646     if (wxUpdateUIEvent::CanUpdate(this))
1647         UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
1648 }
1649
1650 // ----------------------------------------------------------------------------
1651 // accelerators
1652 // ----------------------------------------------------------------------------
1653
1654 bool wxWindow::ProcessAccelerator(wxKeyEvent& event)
1655 {
1656 #if wxUSE_ACCEL
1657     if (!m_acceleratorTable.Ok())
1658         return false;
1659
1660     int count = m_acceleratorTable.GetCount();
1661     wxAcceleratorEntry* entries = m_acceleratorTable.GetEntries();
1662     int i;
1663     for (i = 0; i < count; i++)
1664     {
1665         wxAcceleratorEntry* entry = & (entries[i]);
1666         if (entry->MatchesEvent(event))
1667         {
1668             // Bingo, we have a match. Now find a control that matches the
1669             // entry command id.
1670
1671             // Need to go up to the top of the window hierarchy, since it might
1672             // be e.g. a menu item
1673             wxWindow* parent = this;
1674             while ( parent && !parent->IsTopLevel() )
1675                 parent = parent->GetParent();
1676
1677             if (!parent)
1678                 return false;
1679
1680             wxFrame* frame = wxDynamicCast(parent, wxFrame);
1681             if ( frame )
1682             {
1683 #if wxUSE_MENUS
1684                 // Try for a menu command
1685                 if (frame->GetMenuBar())
1686                 {
1687                     wxMenuItem* item = frame->GetMenuBar()->FindItem(entry->GetCommand());
1688                     if (item)
1689                     {
1690                         wxCommandEvent commandEvent(wxEVT_COMMAND_MENU_SELECTED, entry->GetCommand());
1691                         commandEvent.SetEventObject(frame);
1692
1693                         // If ProcessEvent returns true (it was handled), then
1694                         // the calling code will skip the event handling.
1695                         return frame->GetEventHandler()->ProcessEvent(commandEvent);
1696                     }
1697                 }
1698 #endif
1699             }
1700
1701             // Find a child matching the command id
1702             wxWindow* child = parent->FindWindow(entry->GetCommand());
1703
1704             // No such child
1705             if (!child)
1706                 return false;
1707
1708             // Now we process those kinds of windows that we can.
1709             // For now, only buttons.
1710             if ( wxDynamicCast(child, wxButton) )
1711             {
1712                 wxCommandEvent commandEvent (wxEVT_COMMAND_BUTTON_CLICKED, child->GetId());
1713                 commandEvent.SetEventObject(child);
1714                 return child->GetEventHandler()->ProcessEvent(commandEvent);
1715             }
1716
1717             return false;
1718         } // matches event
1719     }// for
1720 #endif
1721
1722     // We didn't match the key event against an accelerator.
1723     return false;
1724 }
1725
1726 // ============================================================================
1727 // Motif-specific stuff from here on
1728 // ============================================================================
1729
1730 // ----------------------------------------------------------------------------
1731 // function which maintain the global hash table mapping Widgets to wxWidgets
1732 // ----------------------------------------------------------------------------
1733
1734 bool wxAddWindowToTable(Widget w, wxWindow *win)
1735 {
1736     const long key = (long)w;
1737     if ( wxWidgetHashTable->Get(key))
1738     {
1739         wxLogDebug("Widget table clash: new widget is %ld, %s",
1740                    key, win->GetClassInfo()->GetClassName());
1741         return false;
1742     }
1743
1744     wxWidgetHashTable->Put(key, win);
1745
1746     wxLogTrace("widget", "Widget 0x%p <-> window %p (%s)",
1747                w, win, win->GetClassInfo()->GetClassName());
1748
1749     return true;
1750 }
1751
1752 wxWindow *wxGetWindowFromTable(Widget w)
1753 {
1754     return (wxWindow *)wxWidgetHashTable->Get((long) w);
1755 }
1756
1757 void wxDeleteWindowFromTable(Widget w)
1758 {
1759     wxLogTrace("widget", "Widget 0x%p", (WXWidget)w);
1760
1761     wxWidgetHashTable->Delete((long)w);
1762 }
1763
1764 // ----------------------------------------------------------------------------
1765 // add/remove window from the table
1766 // ----------------------------------------------------------------------------
1767
1768 // Add to hash table, add event handler
1769 bool wxWindow::AttachWidget (wxWindow* WXUNUSED(parent), WXWidget mainWidget,
1770                              WXWidget formWidget, int x, int y, int width, int height)
1771 {
1772     wxAddWindowToTable((Widget) mainWidget, this);
1773     XtAddEventHandler( (Widget) mainWidget,
1774                        ButtonPressMask | ButtonReleaseMask
1775                      | PointerMotionMask,
1776                        False,
1777                        wxPanelItemEventHandler,
1778                        (XtPointer) this);
1779
1780     if (!formWidget)
1781     {
1782         XtTranslations ptr;
1783         XtOverrideTranslations ((Widget) mainWidget,
1784             ptr = XtParseTranslationTable ("<Configure>: resize()"));
1785         XtFree ((char *) ptr);
1786     }
1787
1788     // Some widgets have a parent form widget, e.g. wxRadioBox
1789     if (formWidget)
1790     {
1791         if (!wxAddWindowToTable((Widget) formWidget, this))
1792             return false;
1793
1794         XtTranslations ptr;
1795         XtOverrideTranslations ((Widget) formWidget,
1796             ptr = XtParseTranslationTable ("<Configure>: resize()"));
1797         XtFree ((char *) ptr);
1798     }
1799
1800     if (x == -1)
1801         x = 0;
1802     if (y == -1)
1803         y = 0;
1804     DoSetSize (x, y, width, height, wxSIZE_USE_EXISTING);
1805
1806     return true;
1807 }
1808
1809 // Remove event handler, remove from hash table
1810 bool wxWindow::DetachWidget(WXWidget widget)
1811 {
1812     XtRemoveEventHandler( (Widget) widget,
1813                           ButtonPressMask | ButtonReleaseMask
1814                         | PointerMotionMask,
1815                           False,
1816                           wxPanelItemEventHandler,
1817                           (XtPointer)this);
1818
1819     wxDeleteWindowFromTable((Widget) widget);
1820     return true;
1821 }
1822
1823 // ----------------------------------------------------------------------------
1824 // Motif-specific accessors
1825 // ----------------------------------------------------------------------------
1826
1827 WXWindow wxWindow::GetClientXWindow() const
1828 {
1829     Widget wMain = (Widget)GetClientWidget();
1830     if ( wMain )
1831         return (WXWindow) XtWindow(wMain);
1832     else
1833         return (WXWindow) 0;
1834 }
1835
1836 // Get the underlying X window
1837 WXWindow wxWindow::GetXWindow() const
1838 {
1839     Widget wMain = (Widget)GetMainWidget();
1840     if ( wMain )
1841         return (WXWindow) XtWindow(wMain);
1842     else
1843         return (WXWindow) 0;
1844 }
1845
1846 // Get the underlying X display
1847 WXDisplay *wxWindow::GetXDisplay() const
1848 {
1849     Widget wMain = (Widget)GetMainWidget();
1850     if ( wMain )
1851         return (WXDisplay*) XtDisplay(wMain);
1852     else
1853         return (WXDisplay*) NULL;
1854 }
1855
1856 WXWidget wxWindow::GetMainWidget() const
1857 {
1858     if (m_drawingArea)
1859         return m_drawingArea;
1860     else
1861         return m_mainWidget;
1862 }
1863
1864 WXWidget wxWindow::GetClientWidget() const
1865 {
1866     if (m_drawingArea != (WXWidget) 0)
1867         return m_drawingArea;
1868     else
1869         return GetMainWidget();
1870 }
1871
1872 WXWidget wxWindow::GetTopWidget() const
1873 {
1874     return GetMainWidget();
1875 }
1876
1877 WXWidget wxWindow::GetLabelWidget() const
1878 {
1879     return GetMainWidget();
1880 }
1881
1882 // ----------------------------------------------------------------------------
1883 // Motif callbacks
1884 // ----------------------------------------------------------------------------
1885
1886 // All widgets should have this as their resize proc.
1887 // OnSize sent to wxWindow via client data.
1888 void wxWidgetResizeProc(Widget w, XConfigureEvent *WXUNUSED(event),
1889                         String WXUNUSED(args)[], int *WXUNUSED(num_args))
1890 {
1891     wxWindow *win = wxGetWindowFromTable(w);
1892     if (!win)
1893         return;
1894
1895     if (win->PreResize())
1896     {
1897         int width, height;
1898         win->GetSize(&width, &height);
1899         wxSizeEvent sizeEvent(wxSize(width, height), win->GetId());
1900         sizeEvent.SetEventObject(win);
1901         win->GetEventHandler()->ProcessEvent(sizeEvent);
1902     }
1903 }
1904
1905 static void wxCanvasRepaintProc(Widget drawingArea,
1906                                 XtPointer clientData,
1907                                 XmDrawingAreaCallbackStruct * cbs)
1908 {
1909     if (!wxGetWindowFromTable(drawingArea))
1910         return;
1911
1912     XEvent * event = cbs->event;
1913     wxWindow * win = (wxWindow *) clientData;
1914
1915     switch (event->type)
1916     {
1917     case Expose:
1918         {
1919             win->AddUpdateRect(event->xexpose.x, event->xexpose.y,
1920                                event->xexpose.width, event->xexpose.height);
1921
1922             if (event -> xexpose.count == 0)
1923             {
1924                 win->DoPaint();
1925             }
1926             break;
1927         }
1928     }
1929 }
1930
1931 // Unable to deal with Enter/Leave without a separate EventHandler (Motif 1.1.4)
1932 static void wxCanvasEnterLeave(Widget drawingArea,
1933                                XtPointer WXUNUSED(clientData),
1934                                XCrossingEvent * event)
1935 {
1936     XmDrawingAreaCallbackStruct cbs;
1937     XEvent ev;
1938
1939     ((XCrossingEvent &) ev) = *event;
1940
1941     cbs.reason = XmCR_INPUT;
1942     cbs.event = &ev;
1943
1944     wxCanvasInputEvent(drawingArea, (XtPointer) NULL, &cbs);
1945 }
1946
1947 // Fix to make it work under Motif 1.0 (!)
1948 static void wxCanvasMotionEvent (Widget WXUNUSED(drawingArea),
1949                                  XButtonEvent *WXUNUSED(event))
1950 {
1951 #if XmVersion <= 1000
1952     XmDrawingAreaCallbackStruct cbs;
1953     XEvent ev;
1954
1955     ev = *((XEvent *) event);
1956     cbs.reason = XmCR_INPUT;
1957     cbs.event = &ev;
1958
1959     wxCanvasInputEvent (drawingArea, (XtPointer) NULL, &cbs);
1960 #endif // XmVersion <= 1000
1961 }
1962
1963 static void wxCanvasInputEvent(Widget drawingArea,
1964                                XtPointer WXUNUSED(data),
1965                                XmDrawingAreaCallbackStruct * cbs)
1966 {
1967     wxWindow *canvas = wxGetWindowFromTable(drawingArea);
1968     XEvent* xevent = cbs->event;
1969
1970     if (canvas==NULL)
1971         return;
1972
1973     if (cbs->reason != XmCR_INPUT)
1974         return;
1975
1976     switch (xevent->xany.type)
1977     {
1978     case EnterNotify:
1979     case LeaveNotify:
1980     case ButtonPress:
1981     case ButtonRelease:
1982     case MotionNotify:
1983         {
1984             wxMouseEvent wxevent(0);
1985             if (wxTranslateMouseEvent(wxevent, canvas, drawingArea, xevent))
1986             {
1987                 canvas->GetEventHandler()->ProcessEvent(wxevent);
1988             }
1989             break;
1990         }
1991     case KeyPress:
1992         {
1993             wxKeyEvent event (wxEVT_CHAR);
1994             if (wxTranslateKeyEvent (event, canvas, (Widget) 0, xevent))
1995             {
1996                 // Implement wxFrame::OnCharHook by checking ancestor.
1997                 wxWindow *parent = canvas;
1998                 while (parent && !parent->IsTopLevel())
1999                     parent = parent->GetParent();
2000
2001                 if (parent)
2002                 {
2003                     event.SetEventType(wxEVT_CHAR_HOOK);
2004                     if (parent->GetEventHandler()->ProcessEvent(event))
2005                         return;
2006                 }
2007
2008                 // For simplicity, OnKeyDown is the same as OnChar
2009                 // TODO: filter modifier key presses from OnChar
2010                 event.SetEventType(wxEVT_KEY_DOWN);
2011
2012                 // Only process OnChar if OnKeyDown didn't swallow it
2013                 if (!canvas->GetEventHandler()->ProcessEvent (event))
2014                 {
2015                     event.SetEventType(wxEVT_CHAR);
2016                     canvas->GetEventHandler()->ProcessEvent (event);
2017                 }
2018             }
2019             break;
2020         }
2021     case KeyRelease:
2022         {
2023             wxKeyEvent event (wxEVT_KEY_UP);
2024             if (wxTranslateKeyEvent (event, canvas, (Widget) 0, xevent))
2025             {
2026                 canvas->GetEventHandler()->ProcessEvent (event);
2027             }
2028             break;
2029         }
2030     case FocusIn:
2031         {
2032             if (xevent->xfocus.detail != NotifyPointer)
2033             {
2034                 wxFocusEvent event(wxEVT_SET_FOCUS, canvas->GetId());
2035                 event.SetEventObject(canvas);
2036                 canvas->GetEventHandler()->ProcessEvent(event);
2037             }
2038             break;
2039         }
2040     case FocusOut:
2041         {
2042             if (xevent->xfocus.detail != NotifyPointer)
2043             {
2044                 wxFocusEvent event(wxEVT_KILL_FOCUS, canvas->GetId());
2045                 event.SetEventObject(canvas);
2046                 canvas->GetEventHandler()->ProcessEvent(event);
2047             }
2048             break;
2049         }
2050     default:
2051         break;
2052     }
2053 }
2054
2055 static void wxPanelItemEventHandler(Widget    wid,
2056                                     XtPointer WXUNUSED(client_data),
2057                                     XEvent*   event,
2058                                     Boolean  *continueToDispatch)
2059 {
2060     // Widget can be a label or the actual widget.
2061
2062     wxWindow *window = wxGetWindowFromTable(wid);
2063     if (window)
2064     {
2065         wxMouseEvent wxevent(0);
2066         if (wxTranslateMouseEvent(wxevent, window, wid, event))
2067         {
2068             window->GetEventHandler()->ProcessEvent(wxevent);
2069         }
2070     }
2071
2072     // TODO: probably the key to allowing default behaviour to happen. Say we
2073     // set a m_doDefault flag to false at the start of this function. Then in
2074     // e.g. wxWindow::OnMouseEvent we can call Default() which sets this flag to
2075     // true, indicating that default processing can happen. Thus, behaviour can
2076     // appear to be overridden just by adding an event handler and not calling
2077     // wxWindow::OnWhatever. ALSO, maybe we can use this instead of the current
2078     // way of handling drawing area events, to simplify things.
2079     *continueToDispatch = True;
2080 }
2081
2082 static void wxScrollBarCallback(Widget scrollbar,
2083                                 XtPointer clientData,
2084                                 XmScrollBarCallbackStruct *cbs)
2085 {
2086     wxWindow *win = wxGetWindowFromTable(scrollbar);
2087     wxOrientation orientation = (wxOrientation)wxPtrToUInt(clientData);
2088
2089     wxEventType eventType = wxEVT_NULL;
2090     switch (cbs->reason)
2091     {
2092     case XmCR_INCREMENT:
2093         {
2094             eventType = wxEVT_SCROLLWIN_LINEDOWN;
2095             break;
2096         }
2097     case XmCR_DECREMENT:
2098         {
2099             eventType = wxEVT_SCROLLWIN_LINEUP;
2100             break;
2101         }
2102     case XmCR_DRAG:
2103         {
2104             eventType = wxEVT_SCROLLWIN_THUMBTRACK;
2105             break;
2106         }
2107     case XmCR_VALUE_CHANGED:
2108         {
2109             eventType = wxEVT_SCROLLWIN_THUMBRELEASE;
2110             break;
2111         }
2112     case XmCR_PAGE_INCREMENT:
2113         {
2114             eventType = wxEVT_SCROLLWIN_PAGEDOWN;
2115             break;
2116         }
2117     case XmCR_PAGE_DECREMENT:
2118         {
2119             eventType = wxEVT_SCROLLWIN_PAGEUP;
2120             break;
2121         }
2122     case XmCR_TO_TOP:
2123         {
2124             eventType = wxEVT_SCROLLWIN_TOP;
2125             break;
2126         }
2127     case XmCR_TO_BOTTOM:
2128         {
2129             eventType = wxEVT_SCROLLWIN_BOTTOM;
2130             break;
2131         }
2132     default:
2133         {
2134             // Should never get here
2135             wxFAIL_MSG("Unknown scroll event.");
2136             break;
2137         }
2138     }
2139
2140     wxScrollWinEvent event(eventType,
2141                            cbs->value,
2142                            orientation);
2143     event.SetEventObject( win );
2144     win->GetEventHandler()->ProcessEvent(event);
2145 }
2146
2147 // For repainting arbitrary windows
2148 void wxUniversalRepaintProc(Widget w, XtPointer WXUNUSED(c_data), XEvent *event, char *)
2149 {
2150     wxWindow* win = wxGetWindowFromTable(w);
2151     if (!win)
2152         return;
2153
2154     switch ( event->type )
2155     {
2156         case Expose:
2157         {
2158             win->AddUpdateRect(event->xexpose.x, event->xexpose.y,
2159                                event->xexpose.width, event->xexpose.height);
2160
2161             if ( event->xexpose.count == 0 )
2162             {
2163                 win->DoPaint();
2164             }
2165
2166             break;
2167         }
2168     }
2169 }
2170
2171 // ----------------------------------------------------------------------------
2172 // TranslateXXXEvent() functions
2173 // ----------------------------------------------------------------------------
2174
2175 bool wxTranslateMouseEvent(wxMouseEvent& wxevent, wxWindow *win,
2176                            Widget widget, const XEvent *xevent)
2177 {
2178     switch (xevent->xany.type)
2179     {
2180         case EnterNotify:
2181         case LeaveNotify:
2182 #if 0
2183             fprintf(stderr, "Widget 0x%p <-> window %p (%s), %s\n",
2184                     (WXWidget)widget, win, win->GetClassInfo()->GetClassName(),
2185                     (xevent->xany.type == EnterNotify ? "ENTER" : "LEAVE"));
2186 #endif
2187         case ButtonPress:
2188         case ButtonRelease:
2189         case MotionNotify:
2190         {
2191             int eventx = xevent->xbutton.x, eventy = xevent->xbutton.y;
2192
2193             wxEventType eventType = wxEVT_NULL;
2194
2195             if (xevent->xany.type == LeaveNotify)
2196             {
2197                 eventType = wxEVT_LEAVE_WINDOW;
2198             }
2199             if (xevent->xany.type == EnterNotify)
2200             {
2201                 eventType = wxEVT_ENTER_WINDOW;
2202             }
2203             else if (xevent->xany.type == MotionNotify)
2204             {
2205                 eventType = wxEVT_MOTION;
2206
2207                 if (xevent->xmotion.is_hint == NotifyHint)
2208                 {
2209                     Window root, child;
2210                     int x_root, y_root;
2211                     unsigned int state;
2212                     Display *dpy = XtDisplay (widget);
2213
2214                     XQueryPointer (dpy, XtWindow (widget),
2215                         &root, &child,
2216                         &x_root, &y_root, &eventx, &eventy, &state);
2217                 }
2218             }
2219             else if (xevent->xany.type == ButtonPress)
2220             {
2221                 wxevent.SetTimestamp(xevent->xbutton.time);
2222                 int button = 0;
2223                 if (xevent->xbutton.button == Button1)
2224                 {
2225                     eventType = wxEVT_LEFT_DOWN;
2226                     button = 1;
2227                 }
2228                 else if (xevent->xbutton.button == Button2)
2229                 {
2230                     eventType = wxEVT_MIDDLE_DOWN;
2231                     button = 2;
2232                 }
2233                 else if (xevent->xbutton.button == Button3)
2234                 {
2235                     eventType = wxEVT_RIGHT_DOWN;
2236                     button = 3;
2237                 }
2238
2239                 // check for a double click
2240                 //
2241                 long dclickTime = XtGetMultiClickTime(xevent->xany.display);
2242                 long ts = wxevent.GetTimestamp();
2243
2244                 int buttonLast = win->GetLastClickedButton();
2245                 long lastTS = win->GetLastClickTime();
2246                 if ( buttonLast && buttonLast == button &&
2247                      (ts - lastTS) < dclickTime )
2248                 {
2249                     // I have a dclick
2250                     win->SetLastClick(0, ts);
2251                     if ( eventType == wxEVT_LEFT_DOWN )
2252                         eventType = wxEVT_LEFT_DCLICK;
2253                     else if ( eventType == wxEVT_MIDDLE_DOWN )
2254                         eventType = wxEVT_MIDDLE_DCLICK;
2255                     else if ( eventType == wxEVT_RIGHT_DOWN )
2256                         eventType = wxEVT_RIGHT_DCLICK;
2257                 }
2258                 else
2259                 {
2260                     // not fast enough or different button
2261                     win->SetLastClick(button, ts);
2262                 }
2263             }
2264             else if (xevent->xany.type == ButtonRelease)
2265             {
2266                 if (xevent->xbutton.button == Button1)
2267                 {
2268                     eventType = wxEVT_LEFT_UP;
2269                 }
2270                 else if (xevent->xbutton.button == Button2)
2271                 {
2272                     eventType = wxEVT_MIDDLE_UP;
2273                 }
2274                 else if (xevent->xbutton.button == Button3)
2275                 {
2276                     eventType = wxEVT_RIGHT_UP;
2277                 }
2278                 else
2279                     return false;
2280             }
2281             else
2282             {
2283                 return false;
2284             }
2285
2286             wxevent.SetEventType(eventType);
2287
2288             Position x1, y1;
2289             XtVaGetValues(widget, XmNx, &x1, XmNy, &y1, NULL);
2290
2291             int x2, y2;
2292             win->GetPosition(&x2, &y2);
2293
2294             // The button x/y must be translated to wxWidgets
2295             // window space - the widget might be a label or button,
2296             // within a form.
2297             int dx = 0;
2298             int dy = 0;
2299             if (widget != (Widget)win->GetMainWidget())
2300             {
2301                 dx = x1;
2302                 dy = y1;
2303             }
2304
2305             wxevent.m_x = eventx + dx;
2306             wxevent.m_y = eventy + dy;
2307
2308             wxevent.m_leftDown = ((eventType == wxEVT_LEFT_DOWN)
2309                 || (event_left_is_down (xevent)
2310                 && (eventType != wxEVT_LEFT_UP)));
2311             wxevent.m_middleDown = ((eventType == wxEVT_MIDDLE_DOWN)
2312                 || (event_middle_is_down (xevent)
2313                 && (eventType != wxEVT_MIDDLE_UP)));
2314             wxevent.m_rightDown = ((eventType == wxEVT_RIGHT_DOWN)
2315                 || (event_right_is_down (xevent)
2316                 && (eventType != wxEVT_RIGHT_UP)));
2317
2318             wxevent.m_shiftDown = xevent->xbutton.state & ShiftMask;
2319             wxevent.m_controlDown = xevent->xbutton.state & ControlMask;
2320             wxevent.m_altDown = xevent->xbutton.state & Mod3Mask;
2321             wxevent.m_metaDown = xevent->xbutton.state & Mod1Mask;
2322
2323             wxevent.SetId(win->GetId());
2324             wxevent.SetEventObject(win);
2325
2326             return true;
2327         }
2328     }
2329     return false;
2330 }
2331
2332 bool wxTranslateKeyEvent(wxKeyEvent& wxevent, wxWindow *win,
2333                          Widget WXUNUSED(widget), const XEvent *xevent)
2334 {
2335     switch (xevent->xany.type)
2336     {
2337     case KeyPress:
2338     case KeyRelease:
2339         {
2340             char buf[20];
2341
2342             KeySym keySym;
2343             (void) XLookupString((XKeyEvent *)xevent, buf, 20, &keySym, NULL);
2344             int id = wxCharCodeXToWX (keySym);
2345             // id may be WXK_xxx code - these are outside ASCII range, so we
2346             // can't just use toupper() on id
2347             if (id >= 'a' && id <= 'z')
2348                 id = toupper(id);
2349
2350             if (xevent->xkey.state & ShiftMask)
2351                 wxevent.m_shiftDown = true;
2352             if (xevent->xkey.state & ControlMask)
2353                 wxevent.m_controlDown = true;
2354             if (xevent->xkey.state & Mod3Mask)
2355                 wxevent.m_altDown = true;
2356             if (xevent->xkey.state & Mod1Mask)
2357                 wxevent.m_metaDown = true;
2358             wxevent.SetEventObject(win);
2359             wxevent.m_keyCode = id;
2360             wxevent.SetTimestamp(xevent->xkey.time);
2361
2362             wxevent.m_x = xevent->xbutton.x;
2363             wxevent.m_y = xevent->xbutton.y;
2364
2365             if (id > -1)
2366                 return true;
2367             else
2368                 return false;
2369             break;
2370         }
2371     default:
2372         break;
2373     }
2374     return false;
2375 }
2376
2377 // ----------------------------------------------------------------------------
2378 // Colour stuff
2379 // ----------------------------------------------------------------------------
2380
2381 #define YAllocColor XAllocColor
2382 XColor g_itemColors[5];
2383 int wxComputeColours (Display *display, wxColour * back, wxColour * fore)
2384 {
2385     int result;
2386     static XmColorProc colorProc;
2387
2388     result = wxNO_COLORS;
2389
2390     if (back)
2391     {
2392         g_itemColors[0].red = (((long) back->Red ()) << 8);
2393         g_itemColors[0].green = (((long) back->Green ()) << 8);
2394         g_itemColors[0].blue = (((long) back->Blue ()) << 8);
2395         g_itemColors[0].flags = DoRed | DoGreen | DoBlue;
2396         if (colorProc == (XmColorProc) NULL)
2397         {
2398             // Get a ptr to the actual function
2399             colorProc = XmSetColorCalculation ((XmColorProc) NULL);
2400             // And set it back to motif.
2401             XmSetColorCalculation (colorProc);
2402         }
2403         (*colorProc) (&g_itemColors[wxBACK_INDEX],
2404             &g_itemColors[wxFORE_INDEX],
2405             &g_itemColors[wxSELE_INDEX],
2406             &g_itemColors[wxTOPS_INDEX],
2407             &g_itemColors[wxBOTS_INDEX]);
2408         result = wxBACK_COLORS;
2409     }
2410     if (fore)
2411     {
2412         g_itemColors[wxFORE_INDEX].red = (((long) fore->Red ()) << 8);
2413         g_itemColors[wxFORE_INDEX].green = (((long) fore->Green ()) << 8);
2414         g_itemColors[wxFORE_INDEX].blue = (((long) fore->Blue ()) << 8);
2415         g_itemColors[wxFORE_INDEX].flags = DoRed | DoGreen | DoBlue;
2416         if (result == wxNO_COLORS)
2417             result = wxFORE_COLORS;
2418     }
2419
2420     Display *dpy = display;
2421     Colormap cmap = (Colormap) wxTheApp->GetMainColormap((WXDisplay*) dpy);
2422
2423     if (back)
2424     {
2425         /* 5 Colours to allocate */
2426         for (int i = 0; i < 5; i++)
2427             if (!YAllocColor (dpy, cmap, &g_itemColors[i]))
2428                 result = wxNO_COLORS;
2429     }
2430     else if (fore)
2431     {
2432         /* Only 1 colour to allocate */
2433         if (!YAllocColor (dpy, cmap, &g_itemColors[wxFORE_INDEX]))
2434             result = wxNO_COLORS;
2435     }
2436
2437     return result;
2438 }
2439
2440 // Changes the foreground and background colours to be derived from the current
2441 // background colour. To change the foreground colour, you must call
2442 // SetForegroundColour explicitly.
2443 void wxWindow::ChangeBackgroundColour()
2444 {
2445     WXWidget mainWidget = GetMainWidget();
2446     if ( mainWidget )
2447         wxDoChangeBackgroundColour(mainWidget, m_backgroundColour);
2448     if ( m_scrolledWindow && mainWidget != m_scrolledWindow )
2449         wxDoChangeForegroundColour(m_scrolledWindow, m_backgroundColour);
2450 }
2451
2452 void wxWindow::ChangeForegroundColour()
2453 {
2454     WXWidget mainWidget = GetMainWidget();
2455     if ( mainWidget )
2456         wxDoChangeForegroundColour(mainWidget, m_foregroundColour);
2457     if ( m_scrolledWindow && mainWidget != m_scrolledWindow )
2458         wxDoChangeForegroundColour(m_scrolledWindow, m_foregroundColour);
2459 }
2460
2461 bool wxWindow::SetBackgroundColour(const wxColour& col)
2462 {
2463     if ( !wxWindowBase::SetBackgroundColour(col) )
2464         return false;
2465
2466     ChangeBackgroundColour();
2467
2468     return true;
2469 }
2470
2471 bool wxWindow::SetForegroundColour(const wxColour& col)
2472 {
2473     if ( !wxWindowBase::SetForegroundColour(col) )
2474         return false;
2475
2476     ChangeForegroundColour();
2477
2478     return true;
2479 }
2480
2481 void wxWindow::ChangeFont(bool keepOriginalSize)
2482 {
2483     // Note that this causes the widget to be resized back
2484     // to its original size! We therefore have to set the size
2485     // back again. TODO: a better way in Motif?
2486     Widget w = (Widget) GetLabelWidget(); // Usually the main widget
2487     if (w && m_font.Ok())
2488     {
2489         int width, height, width1, height1;
2490         GetSize(& width, & height);
2491
2492         wxDoChangeFont( GetLabelWidget(), m_font );
2493
2494         GetSize(& width1, & height1);
2495         if (keepOriginalSize && (width != width1 || height != height1))
2496         {
2497             SetSize(-1, -1, width, height);
2498         }
2499     }
2500 }
2501
2502 // ----------------------------------------------------------------------------
2503 // global functions
2504 // ----------------------------------------------------------------------------
2505
2506 wxWindow *wxGetActiveWindow()
2507 {
2508     // TODO
2509     wxFAIL_MSG("Not implemented");
2510     return NULL;
2511 }
2512
2513 /* static */
2514 wxWindow *wxWindowBase::GetCapture()
2515 {
2516     return (wxWindow *)g_captureWindow;
2517 }
2518
2519
2520 // Find the wxWindow at the current mouse position, returning the mouse
2521 // position.
2522 wxWindow* wxFindWindowAtPointer(const wxPoint& pt)
2523 {
2524     return wxFindWindowAtPoint(wxGetMousePosition());
2525 }
2526
2527 // Get the current mouse position.
2528 wxPoint wxGetMousePosition()
2529 {
2530     Display *display = wxGlobalDisplay();
2531     Window rootWindow = RootWindowOfScreen (DefaultScreenOfDisplay(display));
2532     Window rootReturn, childReturn;
2533     int rootX, rootY, winX, winY;
2534     unsigned int maskReturn;
2535
2536     XQueryPointer (display,
2537                    rootWindow,
2538                    &rootReturn,
2539                    &childReturn,
2540                    &rootX, &rootY, &winX, &winY, &maskReturn);
2541     return wxPoint(rootX, rootY);
2542 }
2543
2544
2545 // ----------------------------------------------------------------------------
2546 // wxNoOptimize: switch off size optimization
2547 // ----------------------------------------------------------------------------
2548
2549 int wxNoOptimize::ms_count = 0;
2550