src/motif/window.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        windows.cpp
   3 // Purpose:     wxWindow
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  21     #pragma implementation "window.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __VMS
  28 #define XtDisplay XTDISPLAY
  29 #define XtWindow XTWINDOW
  30 #define XtScreen XTSCREEN
  31 #endif
  32
  33 #include "wx/setup.h"
  34 #include "wx/menu.h"
  35 #include "wx/dc.h"
  36 #include "wx/dcclient.h"
  37 #include "wx/utils.h"
  38 #include "wx/app.h"
  39 #include "wx/layout.h"
  40 #include "wx/button.h"
  41 #include "wx/settings.h"
  42 #include "wx/frame.h"
  43 #include "wx/scrolwin.h"
  44 #include "wx/module.h"
  45 #include "wx/menuitem.h"
  46 #include "wx/log.h"
  47 #include "wx/evtloop.h"
  48 #include "wx/hash.h"
  49
  50 #if  wxUSE_DRAG_AND_DROP
  51     #include "wx/dnd.h"
  52 #endif
  53
  54 // DoSetSizeIntr and DoMoveWindowIntr
  55 // PROBLEM:
  56 // under Motif composite controls (such as wxCalendarCtrl or generic wxSpinCtrl
  57 // did nott work and/or segfaulted because
  58 // 1) wxWindow::Create calls SetSize,
  59 //    which results in a call to DoSetSize much earlier than in the other ports
  60 // 2) if wxWindow::Create is called (wxControl::Create calls it)
  61 //    then DoSetSize is never called, causing layout problems in composite
  62 //    controls
  63 //
  64 // SOLUTION:
  65 // 1) don't call SetSize, DoSetSize, DoMoveWindow, DoGetPosition,
  66 //    DoSetPosition directly or indirectly from wxWindow::Create
  67 // 2) call DoMoveWindow from DoSetSize, allowing controls to override it
  68
  69 #ifdef __VMS__
  70 #pragma message disable nosimpint
  71 #endif
  72 #include <Xm/Xm.h>
  73
  74 #include <Xm/DrawingA.h>
  75 #include <Xm/ScrolledW.h>
  76 #include <Xm/ScrollBar.h>
  77 #include <Xm/Frame.h>
  78 #include <Xm/Label.h>
  79 #include <Xm/RowColumn.h>           // for XmMenuPosition
  80 #ifdef __VMS__
  81 #pragma message enable nosimpint
  82 #endif
  83
  84 #include "wx/motif/private.h"
  85
  86 #include <string.h>
  87
  88 // ----------------------------------------------------------------------------
  89 // constants
  90 // ----------------------------------------------------------------------------
  91
  92 static const int SCROLL_MARGIN = 4;
  93
  94 // ----------------------------------------------------------------------------
  95 // global variables for this module
  96 // ----------------------------------------------------------------------------
  97
  98 extern wxHashTable *wxWidgetHashTable;
  99 static wxWindow* g_captureWindow = NULL;
 100
 101
 102 // ----------------------------------------------------------------------------
 103 // private functions
 104 // ----------------------------------------------------------------------------
 105
 106 static void wxCanvasRepaintProc(Widget, XtPointer, XmDrawingAreaCallbackStruct * cbs);
 107 static void wxCanvasInputEvent(Widget drawingArea, XtPointer data, XmDrawingAreaCallbackStruct * cbs);
 108 static void wxCanvasMotionEvent(Widget, XButtonEvent * event);
 109 static void wxCanvasEnterLeave(Widget drawingArea, XtPointer clientData, XCrossingEvent * event);
 110 static void wxScrollBarCallback(Widget widget, XtPointer clientData,
 111                                 XmScrollBarCallbackStruct *cbs);
 112 static void wxPanelItemEventHandler(Widget    wid,
 113                                     XtPointer client_data,
 114                                     XEvent*   event,
 115                                     Boolean  *continueToDispatch);
 116
 117 // unused for now
 118 #if 0
 119
 120 // Helper function for 16-bit fonts
 121 static int str16len(const char *s)
 122 {
 123     int count = 0;
 124
 125     while (s[0] && s[1]) {
 126         count++;
 127         s += 2;
 128     }
 129
 130     return count;
 131 }
 132
 133 #endif // 0
 134
 135 // ----------------------------------------------------------------------------
 136 // macros
 137 // ----------------------------------------------------------------------------
 138
 139 #define event_left_is_down(x) ((x)->xbutton.state & Button1Mask)
 140 #define event_middle_is_down(x) ((x)->xbutton.state & Button2Mask)
 141 #define event_right_is_down(x) ((x)->xbutton.state & Button3Mask)
 142
 143 // ----------------------------------------------------------------------------
 144 // event tables
 145 // ----------------------------------------------------------------------------
 146
 147     IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxWindowBase)
 148
 149     BEGIN_EVENT_TABLE(wxWindow, wxWindowBase)
 150         EVT_SYS_COLOUR_CHANGED(wxWindow::OnSysColourChanged)
 151     END_EVENT_TABLE()
 152
 153 // ============================================================================
 154 // implementation
 155 // ============================================================================
 156
 157 // ----------------------------------------------------------------------------
 158 // helper functions
 159 // ----------------------------------------------------------------------------
 160
 161 void wxWindow::UnmanageAndDestroy(WXWidget widget)
 162 {
 163     Widget w = (Widget)widget;
 164     if ( w )
 165     {
 166         XtUnmanageChild(w);
 167         XtDestroyWidget(w);
 168     }
 169 }
 170
 171 bool wxWindow::MapOrUnmap(WXWidget widget, bool domap)
 172 {
 173     Widget w = (Widget)widget;
 174     if ( !w )
 175         return FALSE;
 176
 177     //   Rationale: a lot of common operations (including but not
 178     // limited to moving, resizing and appending items to a listbox)
 179     // unmamange the widget, do their work, then manage it again.
 180     // This means that, for example adding an item to a listbox will show it,
 181     // or that most controls are shown every time they are moved or resized!
 182     XtSetMappedWhenManaged( w, domap );
 183
 184     // if the widget is not unmanaged, it still intercepts
 185     // mouse events, even if it is not mapped (and hence invisible)
 186     if ( domap )
 187     {
 188         XtManageChild(w);
 189         // XtMapWidget(w);
 190     }
 191     else
 192     {
 193         XtUnmanageChild(w);
 194         // XtUnmapWidget(w);
 195     }
 196
 197     return TRUE;
 198 }
 199
 200 // ----------------------------------------------------------------------------
 201 // constructors
 202 // ----------------------------------------------------------------------------
 203
 204 void wxWindow::Init()
 205 {
 206     // Motif-specific
 207     m_needsRefresh = TRUE;
 208     m_mainWidget = (WXWidget) 0;
 209
 210     m_winCaptured = FALSE;
 211
 212     m_isShown = TRUE;
 213
 214     m_hScrollBar =
 215     m_vScrollBar =
 216     m_borderWidget =
 217     m_scrolledWindow =
 218     m_drawingArea = (WXWidget) 0;
 219
 220     m_scrollPosX =
 221     m_scrollPosY = 0;
 222
 223     m_backingPixmap = (WXPixmap) 0;
 224     m_pixmapWidth =
 225     m_pixmapHeight = 0;
 226
 227     m_pixmapOffsetX =
 228     m_pixmapOffsetY = 0;
 229
 230     m_lastTS = 0;
 231     m_lastButton = 0;
 232 }
 233
 234 // real construction (Init() must have been called before!)
 235 bool wxWindow::Create(wxWindow *parent, wxWindowID id,
 236                       const wxPoint& pos,
 237                       const wxSize& size,
 238                       long style,
 239                       const wxString& name)
 240 {
 241     wxCHECK_MSG( parent, FALSE, "can't create wxWindow without parent" );
 242
 243     CreateBase(parent, id, pos, size, style, wxDefaultValidator, name);
 244
 245     parent->AddChild(this);
 246
 247     m_backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 248     m_foregroundColour = *wxBLACK;
 249
 250     //// TODO: we should probably optimize by only creating a
 251     //// a drawing area if we have one or more scrollbars (wxVSCROLL/wxHSCROLL).
 252     //// But for now, let's simplify things by always creating the
 253     //// drawing area, since otherwise the translations are different.
 254
 255     // New translations for getting mouse motion feedback
 256     static const String translations =
 257 "<Btn1Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 258 <Btn2Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 259 <Btn3Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 260 <BtnMotion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 261 <Btn1Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 262 <Btn2Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 263 <Btn3Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 264 <Btn1Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 265 <Btn2Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 266 <Btn3Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 267 <Motion>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 268 <EnterWindow>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 269 <LeaveWindow>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 270 <Key>: DrawingAreaInput()";
 271
 272     XtActionsRec actions[1];
 273     actions[0].string = "wxCanvasMotionEvent";
 274     actions[0].proc = (XtActionProc) wxCanvasMotionEvent;
 275     XtAppAddActions ((XtAppContext) wxTheApp->GetAppContext(), actions, 1);
 276
 277     Widget parentWidget = (Widget) parent->GetClientWidget();
 278     m_borderWidget = wxCreateBorderWidget( (WXWidget)parentWidget, style );
 279
 280     m_scrolledWindow = (WXWidget)XtVaCreateManagedWidget
 281                                  (
 282                                   "scrolledWindow",
 283                                   xmScrolledWindowWidgetClass,
 284                                   m_borderWidget ? (Widget) m_borderWidget
 285                                                  : parentWidget,
 286                                   XmNresizePolicy, XmRESIZE_NONE,
 287                                   XmNspacing, 0,
 288                                   XmNscrollingPolicy, XmAPPLICATION_DEFINED,
 289                                   //XmNscrollBarDisplayPolicy, XmAS_NEEDED,
 290                                   NULL
 291                                  );
 292
 293     XtTranslations ptr = XtParseTranslationTable(translations);
 294     m_drawingArea = (WXWidget)XtVaCreateWidget
 295                               (
 296                                name,
 297                                xmDrawingAreaWidgetClass, (Widget) m_scrolledWindow,
 298                                XmNunitType, XmPIXELS,
 299                                // XmNresizePolicy, XmRESIZE_ANY,
 300                                XmNresizePolicy, XmRESIZE_NONE,
 301                                XmNmarginHeight, 0,
 302                                XmNmarginWidth, 0,
 303                                XmNtranslations, ptr,
 304                                NULL
 305                               );
 306     XtFree((char *) ptr);
 307
 308 #if 0
 309     if (GetWindowStyleFlag() & wxOVERRIDE_KEY_TRANSLATIONS)
 310     {
 311         ptr = XtParseTranslationTable ("<Key>: DrawingAreaInput()");
 312         XtOverrideTranslations ((Widget) m_drawingArea, ptr);
 313         XtFree ((char *) ptr);
 314     }
 315 #endif // 0
 316
 317     wxAddWindowToTable((Widget) m_drawingArea, this);
 318     wxAddWindowToTable((Widget) m_scrolledWindow, this);
 319
 320     // This order is very important in Motif 1.2.1
 321     XtRealizeWidget ((Widget) m_scrolledWindow);
 322     XtRealizeWidget ((Widget) m_drawingArea);
 323     XtManageChild ((Widget) m_drawingArea);
 324
 325     ptr = XtParseTranslationTable("<Configure>: resize()");
 326     XtOverrideTranslations((Widget) m_drawingArea, ptr);
 327     XtFree ((char *) ptr);
 328
 329     XtAddCallback ((Widget) m_drawingArea, XmNexposeCallback, (XtCallbackProc) wxCanvasRepaintProc, (XtPointer) this);
 330     XtAddCallback ((Widget) m_drawingArea, XmNinputCallback, (XtCallbackProc) wxCanvasInputEvent, (XtPointer) this);
 331
 332     XtAddEventHandler(
 333                       (Widget)m_drawingArea,
 334                        PointerMotionHintMask | EnterWindowMask |
 335                        LeaveWindowMask | FocusChangeMask,
 336                        False,
 337                        (XtEventHandler) wxCanvasEnterLeave,
 338                        (XtPointer) this
 339                      );
 340
 341     // Scrolled widget needs to have its colour changed or we get a little blue
 342     // square where the scrollbars abutt
 343     wxColour backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 344     wxDoChangeBackgroundColour(m_scrolledWindow, backgroundColour, TRUE);
 345     wxDoChangeBackgroundColour(m_drawingArea, backgroundColour, TRUE);
 346
 347     XmScrolledWindowSetAreas(
 348                              (Widget)m_scrolledWindow,
 349                              (Widget) 0, (Widget) 0,
 350                              (Widget) m_drawingArea);
 351
 352     // Without this, the cursor may not be restored properly (e.g. in splitter
 353     // sample).
 354     SetCursor(*wxSTANDARD_CURSOR);
 355     SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
 356     DoSetSizeIntr(pos.x, pos.y, size.x,size.y, wxSIZE_AUTO, TRUE);
 357     return TRUE;
 358 }
 359
 360 // Destructor
 361 wxWindow::~wxWindow()
 362 {
 363     if (g_captureWindow == this)
 364         g_captureWindow = NULL;
 365
 366     m_isBeingDeleted = TRUE;
 367
 368     // Motif-specific actions first
 369     WXWidget wMain = GetMainWidget();
 370     if ( wMain )
 371     {
 372         // Removes event handlers
 373         DetachWidget(wMain);
 374     }
 375
 376     // If m_drawingArea, we're a fully-fledged window with drawing area,
 377     // scrollbars etc. (what wxCanvas used to be)
 378     if ( m_drawingArea )
 379     {
 380         // Destroy children before destroying self
 381         DestroyChildren();
 382
 383         if (m_backingPixmap)
 384             XFreePixmap (XtDisplay ((Widget) GetMainWidget()), (Pixmap) m_backingPixmap);
 385
 386         Widget w = (Widget) m_drawingArea;
 387         wxDeleteWindowFromTable(w);
 388
 389         if (w)
 390         {
 391             XtDestroyWidget(w);
 392             m_drawingArea = (WXWidget) 0;
 393         }
 394
 395         // Only if we're _really_ a canvas (not a dialog box/panel)
 396         if (m_scrolledWindow)
 397         {
 398             wxDeleteWindowFromTable((Widget) m_scrolledWindow);
 399         }
 400
 401         if (m_hScrollBar)
 402         {
 403             wxDeleteWindowFromTable((Widget) m_hScrollBar);
 404             XtUnmanageChild((Widget) m_hScrollBar);
 405         }
 406         if (m_vScrollBar)
 407         {
 408             wxDeleteWindowFromTable((Widget) m_vScrollBar);
 409             XtUnmanageChild((Widget) m_vScrollBar);
 410         }
 411
 412         if (m_hScrollBar)
 413             XtDestroyWidget((Widget) m_hScrollBar);
 414         if (m_vScrollBar)
 415             XtDestroyWidget((Widget) m_vScrollBar);
 416
 417         UnmanageAndDestroy(m_scrolledWindow);
 418
 419         if (m_borderWidget)
 420         {
 421             XtDestroyWidget ((Widget) m_borderWidget);
 422             m_borderWidget = (WXWidget) 0;
 423         }
 424     }
 425     else // Why wasn't this here before? JACS 8/3/2000
 426         DestroyChildren();
 427
 428
 429     // Destroy the window
 430     if (GetMainWidget())
 431     {
 432         // If this line (XtDestroyWidget) causes a crash, you may comment it out.
 433         // Child widgets will get destroyed automatically when a frame
 434         // or dialog is destroyed, but before that you may get some memory
 435         // leaks and potential layout problems if you delete and then add
 436         // child windows.
 437
 438         // GRG, Feb/2000: commented this out when adding support for
 439         //   wxSCROLL[WIN]_THUMBRELEASE events. Also it was reported
 440         //   that this call crashed wxMotif under OS/2, so it seems
 441         //   that leaving it out is the right thing to do.
 442         // SN, Feb/2000: newgrid/griddemo shows why it is needed :-(
 443         XtDestroyWidget((Widget) GetMainWidget());
 444         SetMainWidget((WXWidget) NULL);
 445     }
 446 }
 447
 448 // ----------------------------------------------------------------------------
 449 // scrollbar management
 450 // ----------------------------------------------------------------------------
 451
 452 WXWidget wxWindow::DoCreateScrollBar(WXWidget parent,
 453                                      wxOrientation orientation,
 454                                      void (*callback)())
 455 {
 456     int orient = ( orientation & wxHORIZONTAL ) ? XmHORIZONTAL : XmVERTICAL;
 457     Widget sb =
 458         XtVaCreateManagedWidget( "scrollBarWidget",
 459                                  xmScrollBarWidgetClass, (Widget)parent,
 460                                  XmNorientation, orient,
 461                                  XmNincrement, 1,
 462                                  XmNvalue, 0,
 463                                  NULL );
 464
 465     XtPointer o = (XtPointer)orientation;
 466     XtCallbackProc cb = (XtCallbackProc)callback;
 467
 468     XtAddCallback( sb, XmNvalueChangedCallback, cb, o );
 469     XtAddCallback( sb, XmNdragCallback, cb, o );
 470     XtAddCallback( sb, XmNincrementCallback, cb, o );
 471     XtAddCallback( sb, XmNdecrementCallback, cb, o );
 472     XtAddCallback( sb, XmNpageIncrementCallback, cb, o );
 473     XtAddCallback( sb, XmNpageDecrementCallback, cb, o );
 474     XtAddCallback( sb, XmNtoTopCallback, cb, o );
 475     XtAddCallback( sb, XmNtoBottomCallback, cb, o );
 476
 477     return (WXWidget)sb;
 478 }
 479
 480 // Helper function
 481 void wxWindow::CreateScrollbar(wxOrientation orientation)
 482 {
 483     wxCHECK_RET( m_drawingArea, "this window can't have scrollbars" );
 484
 485     XtVaSetValues( (Widget) m_scrolledWindow,
 486                    XmNresizePolicy, XmRESIZE_NONE,
 487                    NULL );
 488
 489     wxColour backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 490     // Add scrollbars if required
 491     if (orientation == wxHORIZONTAL)
 492     {
 493         m_hScrollBar = DoCreateScrollBar( m_scrolledWindow, wxHORIZONTAL,
 494                                           (void (*)())wxScrollBarCallback );
 495
 496         wxDoChangeBackgroundColour(m_hScrollBar, backgroundColour, TRUE);
 497
 498         XtRealizeWidget( (Widget)m_hScrollBar );
 499
 500         XtVaSetValues((Widget) m_scrolledWindow,
 501             XmNhorizontalScrollBar, (Widget) m_hScrollBar,
 502             NULL);
 503
 504         wxAddWindowToTable( (Widget)m_hScrollBar, this );
 505     }
 506     else if (orientation == wxVERTICAL)
 507     {
 508         m_vScrollBar = DoCreateScrollBar( m_scrolledWindow, wxVERTICAL,
 509                                           (void (*)())wxScrollBarCallback );
 510
 511         wxDoChangeBackgroundColour(m_vScrollBar, backgroundColour, TRUE);
 512
 513         XtRealizeWidget((Widget)m_vScrollBar);
 514
 515         XtVaSetValues((Widget) m_scrolledWindow,
 516             XmNverticalScrollBar, (Widget) m_vScrollBar,
 517             NULL);
 518
 519         wxAddWindowToTable( (Widget)m_vScrollBar, this );
 520     }
 521
 522     XtVaSetValues( (Widget) m_scrolledWindow,
 523                    XmNresizePolicy, XmRESIZE_ANY,
 524                    NULL );
 525 }
 526
 527 void wxWindow::DestroyScrollbar(wxOrientation orientation)
 528 {
 529     wxCHECK_RET( m_drawingArea, "this window can't have scrollbars" );
 530
 531     XtVaSetValues((Widget) m_scrolledWindow,
 532                   XmNresizePolicy, XmRESIZE_NONE,
 533                   NULL);
 534     String stringSB = orientation == wxHORIZONTAL ?
 535         XmNhorizontalScrollBar : XmNverticalScrollBar;
 536     WXWidget* widgetSB = orientation == wxHORIZONTAL ?
 537         &m_hScrollBar : &m_vScrollBar;
 538
 539     if( *widgetSB )
 540     {
 541         wxDeleteWindowFromTable( (Widget)*widgetSB );
 542         XtDestroyWidget( (Widget)*widgetSB );
 543         *widgetSB = (WXWidget)NULL;
 544     }
 545
 546     XtVaSetValues( (Widget)m_scrolledWindow,
 547                    stringSB, (Widget) 0,
 548                    NULL );
 549
 550     XtVaSetValues((Widget) m_scrolledWindow,
 551                   XmNresizePolicy, XmRESIZE_ANY,
 552                   NULL);
 553 }
 554
 555 // ---------------------------------------------------------------------------
 556 // basic operations
 557 // ---------------------------------------------------------------------------
 558
 559 void wxWindow::SetFocus()
 560 {
 561     Widget wMain = (Widget) GetMainWidget();
 562     XmProcessTraversal(wMain, XmTRAVERSE_CURRENT);
 563     XmProcessTraversal((Widget) GetMainWidget(), XmTRAVERSE_CURRENT);
 564 }
 565
 566 // Get the window with the focus
 567 wxWindow *wxWindowBase::FindFocus()
 568 {
 569     // TODO Problems:
 570     // (1) Can there be multiple focussed widgets in an application?
 571     // In which case we need to find the top-level window that's
 572     // currently active.
 573     // (2) The widget with the focus may not be in the widget table
 574     // depending on which widgets I put in the table
 575     wxWindow *winFocus = (wxWindow *)NULL;
 576     for ( wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst();
 577           node;
 578           node = node->GetNext() )
 579     {
 580         wxWindow *win = node->GetData();
 581
 582         Widget w = XmGetFocusWidget ((Widget) win->GetTopWidget());
 583
 584         if (w != (Widget) NULL)
 585         {
 586             winFocus = wxGetWindowFromTable(w);
 587             if ( winFocus )
 588                 break;
 589         }
 590     }
 591
 592     return winFocus;
 593 }
 594
 595 bool wxWindow::Enable(bool enable)
 596 {
 597     if ( !wxWindowBase::Enable(enable) )
 598         return FALSE;
 599
 600     Widget wMain = (Widget)GetMainWidget();
 601     if ( wMain )
 602     {
 603         XtSetSensitive(wMain, enable);
 604         XmUpdateDisplay(wMain);
 605     }
 606
 607     return TRUE;
 608 }
 609
 610 bool wxWindow::Show(bool show)
 611 {
 612     if ( !wxWindowBase::Show(show) )
 613         return FALSE;
 614
 615     if (m_borderWidget || m_scrolledWindow)
 616     {
 617         MapOrUnmap(m_borderWidget ? m_borderWidget : m_scrolledWindow, show);
 618         // MapOrUnmap(m_drawingArea, show);
 619     }
 620     else
 621     {
 622         if ( !MapOrUnmap(GetTopWidget(), show) )
 623             MapOrUnmap(GetMainWidget(), show);
 624     }
 625
 626     return TRUE;
 627 }
 628
 629 // Raise the window to the top of the Z order
 630 void wxWindow::Raise()
 631 {
 632     Widget wTop = (Widget) GetTopWidget();
 633     Window window = XtWindow(wTop);
 634     XRaiseWindow(XtDisplay(wTop), window);
 635 }
 636
 637 // Lower the window to the bottom of the Z order
 638 void wxWindow::Lower()
 639 {
 640     Widget wTop = (Widget) GetTopWidget();
 641     Window window = XtWindow(wTop);
 642     XLowerWindow(XtDisplay(wTop), window);
 643 }
 644
 645 void wxWindow::SetTitle(const wxString& title)
 646 {
 647     XtVaSetValues((Widget)GetMainWidget(), XmNtitle, title.c_str(), NULL);
 648 }
 649
 650 wxString wxWindow::GetTitle() const
 651 {
 652     char *title;
 653     XtVaGetValues((Widget)GetMainWidget(), XmNtitle, &title, NULL);
 654
 655     return wxString(title);
 656 }
 657
 658 void wxWindow::DoCaptureMouse()
 659 {
 660     g_captureWindow = this;
 661     if ( m_winCaptured )
 662         return;
 663
 664     Widget wMain = (Widget)GetMainWidget();
 665     if ( wMain )
 666         XtAddGrab(wMain, TRUE, FALSE);
 667
 668     m_winCaptured = TRUE;
 669 }
 670
 671 void wxWindow::DoReleaseMouse()
 672 {
 673     g_captureWindow = NULL;
 674     if ( !m_winCaptured )
 675         return;
 676
 677     Widget wMain = (Widget)GetMainWidget();
 678     if ( wMain )
 679         XtRemoveGrab(wMain);
 680
 681     m_winCaptured = FALSE;
 682 }
 683
 684 bool wxWindow::SetFont(const wxFont& font)
 685 {
 686     if ( !wxWindowBase::SetFont(font) )
 687     {
 688         // nothing to do
 689         return FALSE;
 690     }
 691
 692     ChangeFont();
 693
 694     return TRUE;
 695 }
 696
 697 bool wxWindow::SetCursor(const wxCursor& cursor)
 698 {
 699     if ( !wxWindowBase::SetCursor(cursor) )
 700     {
 701         // no change
 702         return FALSE;
 703     }
 704
 705     //    wxASSERT_MSG( m_cursor.Ok(),
 706     //                  wxT("cursor must be valid after call to the base version"));
 707     wxCursor* cursor2 = NULL;
 708     if (m_cursor.Ok())
 709         cursor2 = & m_cursor;
 710     else
 711         cursor2 = wxSTANDARD_CURSOR;
 712
 713     WXDisplay *dpy = GetXDisplay();
 714     WXCursor x_cursor = cursor2->GetXCursor(dpy);
 715
 716     Widget w = (Widget) GetMainWidget();
 717     Window win = XtWindow(w);
 718     XDefineCursor((Display*) dpy, win, (Cursor) x_cursor);
 719
 720     return TRUE;
 721 }
 722
 723 // Coordinates relative to the window
 724 void wxWindow::WarpPointer (int x, int y)
 725 {
 726     Widget wClient = (Widget)GetClientWidget();
 727
 728     XWarpPointer(XtDisplay(wClient), None, XtWindow(wClient), 0, 0, 0, 0, x, y);
 729 }
 730
 731 // ---------------------------------------------------------------------------
 732 // scrolling stuff
 733 // ---------------------------------------------------------------------------
 734
 735 int wxWindow::GetScrollPos(int orient) const
 736 {
 737     if (orient == wxHORIZONTAL)
 738         return m_scrollPosX;
 739     else
 740         return m_scrollPosY;
 741
 742 #if 0
 743     Widget scrollBar = (Widget) ((orient == wxHORIZONTAL) ? m_hScrollBar : m_vScrollBar);
 744     if (scrollBar)
 745     {
 746         int pos;
 747         XtVaGetValues(scrollBar, XmNvalue, &pos, NULL);
 748         return pos;
 749     }
 750     else
 751         return 0;
 752 #endif // 0
 753 }
 754
 755 // This now returns the whole range, not just the number of positions that we
 756 // can scroll.
 757 int wxWindow::GetScrollRange(int orient) const
 758 {
 759     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 760     // CE scintilla windows don't always have these scrollbars
 761     // and it tends to pile up a whole bunch of asserts
 762     //wxCHECK_MSG( scrollBar, 0, "no such scrollbar" );
 763
 764     int range = 0;
 765     if (scrollBar)
 766         XtVaGetValues(scrollBar, XmNmaximum, &range, NULL);
 767     return range;
 768 }
 769
 770 int wxWindow::GetScrollThumb(int orient) const
 771 {
 772     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 773     //wxCHECK_MSG( scrollBar, 0, "no such scrollbar" );
 774
 775     int thumb = 0;
 776     if (scrollBar)
 777         XtVaGetValues(scrollBar, XmNsliderSize, &thumb, NULL);
 778     return thumb;
 779 }
 780
 781 void wxWindow::SetScrollPos(int orient, int pos, bool WXUNUSED(refresh))
 782 {
 783     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 784
 785     if ( scrollBar )
 786     {
 787         XtVaSetValues (scrollBar, XmNvalue, pos, NULL);
 788     }
 789
 790     SetInternalScrollPos((wxOrientation)orient, pos);
 791 }
 792
 793 // New function that will replace some of the above.
 794 void wxWindow::SetScrollbar(int orient, int pos, int thumbVisible,
 795                             int range, bool WXUNUSED(refresh))
 796 {
 797     int oldW, oldH;
 798     GetSize(& oldW, & oldH);
 799
 800     if (range == 0)
 801         range = 1;
 802     if (thumbVisible == 0)
 803         thumbVisible = 1;
 804
 805     if (thumbVisible > range)
 806         thumbVisible = range;
 807
 808     // Save the old state to see if it changed
 809     WXWidget oldScrollBar = GetScrollbar((wxOrientation)orient);
 810
 811     if (orient == wxHORIZONTAL)
 812     {
 813         if (thumbVisible == range)
 814         {
 815             if (m_hScrollBar)
 816                 DestroyScrollbar(wxHORIZONTAL);
 817         }
 818         else
 819         {
 820             if (!m_hScrollBar)
 821                 CreateScrollbar(wxHORIZONTAL);
 822         }
 823     }
 824     if (orient == wxVERTICAL)
 825     {
 826         if (thumbVisible == range)
 827         {
 828             if (m_vScrollBar)
 829                 DestroyScrollbar(wxVERTICAL);
 830         }
 831         else
 832         {
 833             if (!m_vScrollBar)
 834                 CreateScrollbar(wxVERTICAL);
 835         }
 836     }
 837     WXWidget newScrollBar =  GetScrollbar((wxOrientation)orient);
 838
 839     if (oldScrollBar != newScrollBar)
 840     {
 841         // This is important! Without it, scrollbars misbehave badly.
 842         XtUnrealizeWidget((Widget) m_scrolledWindow);
 843         XmScrolledWindowSetAreas ((Widget) m_scrolledWindow, (Widget) m_hScrollBar, (Widget) m_vScrollBar, (Widget) m_drawingArea);
 844         XtRealizeWidget((Widget) m_scrolledWindow);
 845         XtManageChild((Widget) m_scrolledWindow);
 846     }
 847
 848     if (newScrollBar)
 849     {
 850         XtVaSetValues((Widget) newScrollBar,
 851         XmNvalue, pos,
 852         XmNminimum, 0,
 853         XmNmaximum, range,
 854         XmNsliderSize, thumbVisible,
 855         NULL);
 856     }
 857
 858     SetInternalScrollPos((wxOrientation)orient, pos);
 859
 860     int newW, newH;
 861     GetSize(& newW, & newH);
 862
 863     // Adjusting scrollbars can resize the canvas accidentally
 864     if (newW != oldW || newH != oldH)
 865         SetSize(-1, -1, oldW, oldH);
 866 }
 867
 868 // Does a physical scroll
 869 void wxWindow::ScrollWindow(int dx, int dy, const wxRect *rect)
 870 {
 871     int x, y, w, h;
 872     if (rect)
 873     {
 874         // Use specified rectangle
 875         x = rect->x; y = rect->y; w = rect->width; h = rect->height;
 876     }
 877     else
 878     {
 879         // Use whole client area
 880         x = 0; y = 0;
 881         GetClientSize(& w, & h);
 882     }
 883
 884     int x1 = (dx >= 0) ? x : x - dx;
 885     int y1 = (dy >= 0) ? y : y - dy;
 886     int w1 = w - abs(dx);
 887     int h1 = h - abs(dy);
 888     int x2 = (dx >= 0) ? x + dx : x;
 889     int y2 = (dy >= 0) ? y + dy : y;
 890
 891     wxClientDC dc(this);
 892
 893     dc.SetLogicalFunction (wxCOPY);
 894
 895     Widget widget = (Widget) GetMainWidget();
 896     Window window = XtWindow(widget);
 897     Display* display = XtDisplay(widget);
 898
 899     XCopyArea(display, window, window, (GC) dc.GetGC(),
 900               x1, y1, w1, h1, x2, y2);
 901
 902     dc.SetAutoSetting(TRUE);
 903     wxBrush brush(GetBackgroundColour(), wxSOLID);
 904     dc.SetBrush(brush); // FIXME: needed?
 905
 906     wxWindowList::compatibility_iterator cnode = m_children.GetFirst();
 907     while (cnode)
 908     {
 909         wxWindow *child = cnode->GetData();
 910         int sx = 0;
 911         int sy = 0;
 912         child->GetSize( &sx, &sy );
 913         wxPoint pos( child->GetPosition() );
 914         child->SetSize( pos.x + dx, pos.y + dy, sx, sy, wxSIZE_ALLOW_MINUS_ONE );
 915         cnode = cnode->GetNext();
 916     }
 917
 918     // We'll add rectangles to the list of update rectangles according to which
 919     // bits we've exposed.
 920     wxList updateRects;
 921
 922     if (dx > 0)
 923     {
 924         wxRect *rect = new wxRect;
 925         rect->x = x;
 926         rect->y = y;
 927         rect->width = dx;
 928         rect->height = h;
 929
 930         XFillRectangle(display, window,
 931             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
 932
 933         rect->x = rect->x;
 934         rect->y = rect->y;
 935         rect->width = rect->width;
 936         rect->height = rect->height;
 937
 938         updateRects.Append((wxObject*) rect);
 939     }
 940     else if (dx < 0)
 941     {
 942         wxRect *rect = new wxRect;
 943
 944         rect->x = x + w + dx;
 945         rect->y = y;
 946         rect->width = -dx;
 947         rect->height = h;
 948
 949         XFillRectangle(display, window,
 950             (GC) dc.GetGC(), rect->x, rect->y, rect->width,
 951             rect->height);
 952
 953         rect->x = rect->x;
 954         rect->y = rect->y;
 955         rect->width = rect->width;
 956         rect->height = rect->height;
 957
 958         updateRects.Append((wxObject*) rect);
 959     }
 960     if (dy > 0)
 961     {
 962         wxRect *rect = new wxRect;
 963
 964         rect->x = x;
 965         rect->y = y;
 966         rect->width = w;
 967         rect->height = dy;
 968
 969         XFillRectangle(display, window,
 970             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
 971
 972         rect->x = rect->x;
 973         rect->y = rect->y;
 974         rect->width = rect->width;
 975         rect->height = rect->height;
 976
 977         updateRects.Append((wxObject*) rect);
 978     }
 979     else if (dy < 0)
 980     {
 981         wxRect *rect = new wxRect;
 982
 983         rect->x = x;
 984         rect->y = y + h + dy;
 985         rect->width = w;
 986         rect->height = -dy;
 987
 988         XFillRectangle(display, window,
 989             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
 990
 991         rect->x = rect->x;
 992         rect->y = rect->y;
 993         rect->width = rect->width;
 994         rect->height = rect->height;
 995
 996         updateRects.Append((wxObject*) rect);
 997     }
 998     dc.SetBrush(wxNullBrush);
 999
1000     // Now send expose events
1001
1002     wxList::compatibility_iterator  node = updateRects.GetFirst();
1003     while (node)
1004     {
1005         wxRect* rect = (wxRect*) node->GetData();
1006         XExposeEvent event;
1007
1008         event.type = Expose;
1009         event.display = display;
1010         event.send_event = True;
1011         event.window = window;
1012
1013         event.x = rect->x;
1014         event.y = rect->y;
1015         event.width = rect->width;
1016         event.height = rect->height;
1017
1018         event.count = 0;
1019
1020         XSendEvent(display, window, False, ExposureMask, (XEvent *)&event);
1021
1022         node = node->GetNext();
1023
1024     }
1025
1026     // Delete the update rects
1027     node = updateRects.GetFirst();
1028     while (node)
1029     {
1030         wxRect* rect = (wxRect*) node->GetData();
1031         delete rect;
1032         node = node->GetNext();
1033     }
1034
1035     XmUpdateDisplay((Widget) GetMainWidget());
1036 }
1037
1038 // ---------------------------------------------------------------------------
1039 // drag and drop
1040 // ---------------------------------------------------------------------------
1041
1042 #if wxUSE_DRAG_AND_DROP
1043
1044 void wxWindow::SetDropTarget(wxDropTarget * WXUNUSED(pDropTarget))
1045 {
1046     // TODO
1047 }
1048
1049 #endif
1050
1051 // Old style file-manager drag&drop
1052 void wxWindow::DragAcceptFiles(bool WXUNUSED(accept))
1053 {
1054     // TODO
1055 }
1056
1057 // ----------------------------------------------------------------------------
1058 // tooltips
1059 // ----------------------------------------------------------------------------
1060
1061 #if wxUSE_TOOLTIPS
1062
1063 void wxWindow::DoSetToolTip(wxToolTip * WXUNUSED(tooltip))
1064 {
1065     // TODO
1066 }
1067
1068 #endif // wxUSE_TOOLTIPS
1069
1070 // ----------------------------------------------------------------------------
1071 // popup menus
1072 // ----------------------------------------------------------------------------
1073
1074 #if wxUSE_MENUS
1075
1076 bool wxWindow::DoPopupMenu(wxMenu *menu, int x, int y)
1077 {
1078     if ( x == -1 && y == -1 )
1079     {
1080         wxPoint mouse = ScreenToClient(wxGetMousePosition());
1081         x = mouse.x; y = mouse.y;
1082     }
1083
1084     Widget widget = (Widget) GetMainWidget();
1085
1086     /* The menuId field seems to be usused, so we'll use it to
1087     indicate whether a menu is popped up or not:
1088     0: Not currently created as a popup
1089     -1: Created as a popup, but not active
1090     1: Active popup.
1091     */
1092
1093     if (menu->GetParent() && (menu->GetId() != -1))
1094         return FALSE;
1095
1096     if (menu->GetMainWidget())
1097     {
1098         menu->DestroyMenu(TRUE);
1099     }
1100
1101     menu->SetId(1); /* Mark as popped-up */
1102     menu->CreateMenu(NULL, widget, menu);
1103     menu->SetInvokingWindow(this);
1104
1105     menu->UpdateUI();
1106
1107     //  menu->SetParent(parent);
1108     //  parent->children->Append(menu);  // Store menu for later deletion
1109
1110     Widget menuWidget = (Widget) menu->GetMainWidget();
1111
1112     int rootX = 0;
1113     int rootY = 0;
1114
1115     int deviceX = x;
1116     int deviceY = y;
1117     /*
1118     if (this->IsKindOf(CLASSINFO(wxCanvas)))
1119     {
1120     wxCanvas *canvas = (wxCanvas *) this;
1121     deviceX = canvas->GetDC ()->LogicalToDeviceX (x);
1122     deviceY = canvas->GetDC ()->LogicalToDeviceY (y);
1123     }
1124     */
1125
1126     Display *display = XtDisplay (widget);
1127     Window rootWindow = RootWindowOfScreen (XtScreen((Widget)widget));
1128     Window thisWindow = XtWindow (widget);
1129     Window childWindow;
1130     XTranslateCoordinates (display, thisWindow, rootWindow, (int) deviceX, (int) deviceY,
1131         &rootX, &rootY, &childWindow);
1132
1133     XButtonPressedEvent event;
1134     event.type = ButtonPress;
1135     event.button = 1;
1136
1137     event.x = deviceX;
1138     event.y = deviceY;
1139
1140     event.x_root = rootX;
1141     event.y_root = rootY;
1142
1143     XmMenuPosition (menuWidget, &event);
1144     XtManageChild (menuWidget);
1145
1146     // The ID of a pop-up menu is 1 when active, and is set to 0 by the
1147     // idle-time destroy routine.
1148     // Waiting until this ID changes causes this function to block until
1149     // the menu has been dismissed and the widgets cleaned up.
1150     // In other words, once this routine returns, it is safe to delete
1151     // the menu object.
1152     // Ian Brown <ian.brown@printsoft.de>
1153
1154     wxEventLoop evtLoop;
1155
1156     while (menu->GetId() == 1)
1157     {
1158         wxDoEventLoopIteration( evtLoop );
1159     }
1160
1161     return TRUE;
1162 }
1163
1164 #endif
1165
1166 // ---------------------------------------------------------------------------
1167 // moving and resizing
1168 // ---------------------------------------------------------------------------
1169
1170 bool wxWindow::PreResize()
1171 {
1172     return TRUE;
1173 }
1174
1175 // Get total size
1176 void wxWindow::DoGetSize(int *x, int *y) const
1177 {
1178     Widget widget = (Widget)( !m_drawingArea ? GetTopWidget() :
1179                               ( m_borderWidget ? m_borderWidget :
1180                                 m_scrolledWindow ? m_scrolledWindow :
1181                                 m_drawingArea ) );
1182     Dimension xx, yy;
1183
1184     XtVaGetValues( widget,
1185                    XmNwidth, &xx,
1186                    XmNheight, &yy,
1187                    NULL );
1188     if(x) *x = xx;
1189     if(y) *y = yy;
1190 }
1191
1192 void wxWindow::DoGetPosition(int *x, int *y) const
1193 {
1194     Widget widget = (Widget)
1195         ( m_drawingArea ?
1196           ( m_borderWidget ? m_borderWidget : m_scrolledWindow ) :
1197           GetTopWidget() );
1198
1199     Position xx, yy;
1200     XtVaGetValues(widget, XmNx, &xx, XmNy, &yy, NULL);
1201
1202     // We may be faking the client origin. So a window that's really at (0, 30)
1203     // may appear (to wxWin apps) to be at (0, 0).
1204     if (GetParent())
1205     {
1206         wxPoint pt(GetParent()->GetClientAreaOrigin());
1207         xx -= pt.x;
1208         yy -= pt.y;
1209     }
1210
1211     if(x) *x = xx;
1212     if(y) *y = yy;
1213 }
1214
1215 void wxWindow::DoScreenToClient(int *x, int *y) const
1216 {
1217     Widget widget = (Widget) GetClientWidget();
1218     Display *display = XtDisplay((Widget) GetMainWidget());
1219     Window rootWindow = RootWindowOfScreen(XtScreen(widget));
1220     Window thisWindow = XtWindow(widget);
1221
1222     Window childWindow;
1223     int xx = *x;
1224     int yy = *y;
1225     XTranslateCoordinates(display, rootWindow, thisWindow, xx, yy, x, y, &childWindow);
1226 }
1227
1228 void wxWindow::DoClientToScreen(int *x, int *y) const
1229 {
1230     Widget widget = (Widget) GetClientWidget();
1231     Display *display = XtDisplay(widget);
1232     Window rootWindow = RootWindowOfScreen(XtScreen(widget));
1233     Window thisWindow = XtWindow(widget);
1234
1235     Window childWindow;
1236     int xx = *x;
1237     int yy = *y;
1238     XTranslateCoordinates(display, thisWindow, rootWindow, xx, yy, x, y, &childWindow);
1239 }
1240
1241
1242 // Get size *available for subwindows* i.e. excluding menu bar etc.
1243 void wxWindow::DoGetClientSize(int *x, int *y) const
1244 {
1245     Widget widget = (Widget) GetClientWidget();
1246     Dimension xx, yy;
1247     XtVaGetValues(widget, XmNwidth, &xx, XmNheight, &yy, NULL);
1248     if(x) *x = xx; if(y) *y = yy;
1249 }
1250
1251 void wxWindow::DoSetSize(int x, int y, int width, int height, int sizeFlags)
1252 {
1253     DoSetSizeIntr(x, y, width, height, sizeFlags, FALSE);
1254 }
1255
1256 void wxWindow::DoSetSizeIntr(int x, int y, int width, int height,
1257                              int sizeFlags, bool fromCtor)
1258 {
1259     // A bit of optimization to help sort out the flickers.
1260     int oldX = -1, oldY = -1, oldW = -1, oldH = -1;
1261     if( !fromCtor )
1262     {
1263         GetSize(& oldW, & oldH);
1264         GetPosition(& oldX, & oldY);
1265     }
1266
1267     if ( !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
1268     {
1269         if ( x == -1 )
1270             x = oldX;
1271         if ( y == -1 )
1272             y = oldY;
1273     }
1274
1275     wxSize size(-1, -1);
1276     if ( width <= 0 )
1277     {
1278         if ( ( sizeFlags & wxSIZE_AUTO_WIDTH ) && !fromCtor )
1279         {
1280             size = DoGetBestSize();
1281             width = size.x;
1282         }
1283         else
1284         {
1285             width = oldW;
1286         }
1287     }
1288
1289     if ( height == -1 )
1290     {
1291         if( ( sizeFlags & wxSIZE_AUTO_HEIGHT ) && !fromCtor )
1292         {
1293             if( size.x == -1 ) size = DoGetBestSize();
1294             height = size.y;
1295         }
1296         else
1297         {
1298             height = oldH;
1299         }
1300     }
1301
1302     if ( x != oldX || y != oldY || width != oldW || height != oldH
1303          || !wxNoOptimize::CanOptimize() )
1304     {
1305         if (m_drawingArea)
1306         {
1307             int flags = 0;
1308
1309             if (x > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
1310                 flags |= wxMOVE_X;
1311
1312             if (y > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
1313                 flags |= wxMOVE_Y;
1314
1315             if (width > 0)
1316                 flags |= wxMOVE_WIDTH;
1317
1318             if (height > 0)
1319                 flags |= wxMOVE_HEIGHT;
1320
1321             int xx = x; int yy = y;
1322             AdjustForParentClientOrigin(xx, yy, sizeFlags);
1323             if( !fromCtor )
1324                 DoMoveWindow( xx, yy, width, height );
1325             else
1326                 DoMoveWindowIntr( xx, yy, width, height, flags );
1327
1328             return;
1329         }
1330
1331         Widget widget = (Widget) GetTopWidget();
1332         if (!widget)
1333             return;
1334
1335         bool managed = XtIsManaged( widget );
1336         if (managed)
1337             XtUnmanageChild(widget);
1338
1339         int xx = x;
1340         int yy = y;
1341         AdjustForParentClientOrigin(xx, yy, sizeFlags);
1342
1343         DoMoveWindow(xx, yy, width, height);
1344
1345         if (managed)
1346             XtManageChild(widget);
1347     }
1348 }
1349
1350 void wxWindow::DoSetClientSize(int width, int height)
1351 {
1352     if (m_drawingArea)
1353     {
1354         Widget drawingArea = (Widget) m_drawingArea;
1355
1356         XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_ANY, NULL);
1357
1358         if (width > -1)
1359             XtVaSetValues(drawingArea, XmNwidth, width, NULL);
1360         if (height > -1)
1361             XtVaSetValues(drawingArea, XmNheight, height, NULL);
1362
1363         XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_NONE, NULL);
1364         return;
1365     }
1366
1367     Widget widget = (Widget) GetTopWidget();
1368
1369     if (width > -1)
1370         XtVaSetValues(widget, XmNwidth, width, NULL);
1371     if (height > -1)
1372         XtVaSetValues(widget, XmNheight, height, NULL);
1373 }
1374
1375 // For implementation purposes - sometimes decorations make the client area
1376 // smaller
1377 wxPoint wxWindow::GetClientAreaOrigin() const
1378 {
1379     return wxPoint(0, 0);
1380 }
1381
1382 void wxWindow::DoMoveWindowIntr(int xx, int yy, int w, int h,
1383                                 int flags)
1384 {
1385     if (m_drawingArea)
1386     {
1387         Widget drawingArea = (Widget) m_drawingArea;
1388         Widget borderOrScrolled = m_borderWidget ?
1389             (Widget) m_borderWidget :
1390             (Widget) m_scrolledWindow;
1391
1392         bool managed = XtIsManaged(borderOrScrolled);
1393         if (managed)
1394             XtUnmanageChild (borderOrScrolled);
1395         XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_ANY, NULL);
1396
1397         if (flags & wxMOVE_X)
1398             XtVaSetValues (borderOrScrolled,
1399                            XmNx, xx,
1400                            NULL);
1401         if (flags & wxMOVE_Y)
1402             XtVaSetValues (borderOrScrolled,
1403                            XmNy, yy,
1404                            NULL);
1405
1406         if (flags & wxMOVE_WIDTH)
1407         {
1408             if (m_borderWidget)
1409             {
1410                 XtVaSetValues ((Widget) m_borderWidget, XmNwidth, w, NULL);
1411                 short thick, margin;
1412                 XtVaGetValues ((Widget) m_borderWidget,
1413                                XmNshadowThickness, &thick,
1414                                XmNmarginWidth, &margin,
1415                                NULL);
1416                 w -= 2 * (thick + margin);
1417             }
1418
1419             if( w < 1 ) w = 1;
1420             XtVaSetValues ((Widget) m_scrolledWindow, XmNwidth, w, NULL);
1421         }
1422
1423         if (flags & wxMOVE_HEIGHT)
1424         {
1425             if (m_borderWidget)
1426             {
1427                 XtVaSetValues ((Widget) m_borderWidget, XmNheight, h, NULL);
1428                 short thick, margin;
1429                 XtVaGetValues ((Widget) m_borderWidget,
1430                                XmNshadowThickness, &thick,
1431                                XmNmarginHeight, &margin,
1432                                NULL);
1433                 h -= 2 * (thick + margin);
1434             }
1435
1436             if( h < 1 ) h = 1;
1437             XtVaSetValues ((Widget) m_scrolledWindow, XmNheight, h, NULL);
1438         }
1439
1440         if (managed)
1441             XtManageChild (borderOrScrolled);
1442         XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_NONE, NULL);
1443     }
1444     else
1445     {
1446         if( w < 1 ) w = 1;
1447         if( h < 1 ) h = 1;
1448
1449         XtVaSetValues((Widget)GetTopWidget(),
1450                       XmNx, xx,
1451                       XmNy, yy,
1452                       XmNwidth, w,
1453                       XmNheight, h,
1454                       NULL);
1455     }
1456 }
1457
1458 void wxWindow::DoMoveWindow(int x, int y, int width, int height)
1459 {
1460     DoMoveWindowIntr (x, y, width, height,
1461                       wxMOVE_X|wxMOVE_Y|wxMOVE_WIDTH|wxMOVE_HEIGHT);
1462 }
1463
1464 // ---------------------------------------------------------------------------
1465 // text metrics
1466 // ---------------------------------------------------------------------------
1467
1468 int wxWindow::GetCharHeight() const
1469 {
1470     wxCHECK_MSG( m_font.Ok(), 0, "valid window font needed" );
1471
1472     WXFontStructPtr pFontStruct = m_font.GetFontStruct(1.0, GetXDisplay());
1473
1474     int direction, ascent, descent;
1475     XCharStruct overall;
1476     XTextExtents ((XFontStruct*) pFontStruct, "x", 1, &direction, &ascent,
1477         &descent, &overall);
1478
1479     //  return (overall.ascent + overall.descent);
1480     return (ascent + descent);
1481 }
1482
1483 int wxWindow::GetCharWidth() const
1484 {
1485     wxCHECK_MSG( m_font.Ok(), 0, "valid window font needed" );
1486
1487     WXFontStructPtr pFontStruct = m_font.GetFontStruct(1.0, GetXDisplay());
1488
1489     int direction, ascent, descent;
1490     XCharStruct overall;
1491     XTextExtents ((XFontStruct*) pFontStruct, "x", 1, &direction, &ascent,
1492         &descent, &overall);
1493
1494     return overall.width;
1495 }
1496
1497 void wxWindow::GetTextExtent(const wxString& string,
1498                              int *x, int *y,
1499                              int *descent, int *externalLeading,
1500                              const wxFont *theFont) const
1501 {
1502     wxFont *fontToUse = (wxFont *)theFont;
1503     if (!fontToUse)
1504         fontToUse = (wxFont *) & m_font;
1505
1506     wxCHECK_RET( fontToUse->Ok(), "valid window font needed" );
1507
1508     WXFontStructPtr pFontStruct = fontToUse->GetFontStruct(1.0, GetXDisplay());
1509
1510     int direction, ascent, descent2;
1511     XCharStruct overall;
1512     int slen = string.Len();
1513
1514 #if 0
1515     if (use16)
1516         XTextExtents16((XFontStruct*) pFontStruct, (XChar2b *) (char*) (const char*) string, slen, &direction,
1517         &ascent, &descent2, &overall);
1518 #endif
1519
1520     XTextExtents((XFontStruct*) pFontStruct, string, slen,
1521                  &direction, &ascent, &descent2, &overall);
1522
1523     if ( x )
1524         *x = (overall.width);
1525     if ( y )
1526         *y = (ascent + descent2);
1527     if (descent)
1528         *descent = descent2;
1529     if (externalLeading)
1530         *externalLeading = 0;
1531
1532 }
1533
1534 // ----------------------------------------------------------------------------
1535 // painting
1536 // ----------------------------------------------------------------------------
1537
1538 void wxWindow::AddUpdateRect(int x, int y, int w, int h)
1539 {
1540     m_updateRegion.Union( x, y, w, h );
1541 }
1542
1543 void wxWindow::Refresh(bool eraseBack, const wxRect *rect)
1544 {
1545     m_needsRefresh = TRUE;
1546     Display *display = XtDisplay((Widget) GetMainWidget());
1547     Window thisWindow = XtWindow((Widget) GetMainWidget());
1548
1549     XExposeEvent dummyEvent;
1550     int width, height;
1551     GetSize(&width, &height);
1552
1553     dummyEvent.type = Expose;
1554     dummyEvent.display = display;
1555     dummyEvent.send_event = True;
1556     dummyEvent.window = thisWindow;
1557     if (rect)
1558     {
1559         dummyEvent.x = rect->x;
1560         dummyEvent.y = rect->y;
1561         dummyEvent.width = rect->width;
1562         dummyEvent.height = rect->height;
1563     }
1564     else
1565     {
1566         dummyEvent.x = 0;
1567         dummyEvent.y = 0;
1568         dummyEvent.width = width;
1569         dummyEvent.height = height;
1570     }
1571     dummyEvent.count = 0;
1572
1573     if (eraseBack)
1574     {
1575         wxClientDC dc(this);
1576         wxBrush backgroundBrush(GetBackgroundColour(), wxSOLID);
1577         dc.SetBackground(backgroundBrush);
1578         if (rect)
1579             dc.Clear(*rect);
1580         else
1581             dc.Clear();
1582     }
1583
1584     XSendEvent(display, thisWindow, False, ExposureMask, (XEvent *)&dummyEvent);
1585 }
1586
1587 void wxWindow::DoPaint()
1588 {
1589     //TODO : make a temporary gc so we can do the XCopyArea below
1590     if (m_backingPixmap && !m_needsRefresh)
1591     {
1592       wxPaintDC dc(this);
1593
1594       GC tempGC = (GC) dc.GetBackingGC();
1595
1596       Widget widget = (Widget) GetMainWidget();
1597
1598       int scrollPosX = 0;
1599       int scrollPosY = 0;
1600
1601       // We have to test whether it's a wxScrolledWindow (hack!) because
1602       // otherwise we don't know how many pixels have been scrolled. We might
1603       // solve this in the future by defining virtual wxWindow functions to get
1604       // the scroll position in pixels. Or, each kind of scrolled window has to
1605       // implement backing stores itself, using generic wxWidgets code.
1606       wxScrolledWindow* scrolledWindow = wxDynamicCast(this, wxScrolledWindow);
1607       if ( scrolledWindow )
1608       {
1609           int x, y;
1610           scrolledWindow->CalcScrolledPosition(0, 0, &x, &y);
1611
1612           scrollPosX = - x;
1613           scrollPosY = - y;
1614       }
1615
1616       // TODO: This could be optimized further by only copying the areas in the
1617       //       current update region.
1618
1619       // Only blit the part visible in the client area. The backing pixmap
1620       // always starts at 0, 0 but we may be looking at only a portion of it.
1621       wxSize clientArea = GetClientSize();
1622       int toBlitX = m_pixmapWidth - scrollPosX;
1623       int toBlitY = m_pixmapHeight - scrollPosY;
1624
1625       // Copy whichever is samller, the amount of pixmap we have to copy,
1626       // or the size of the client area.
1627       toBlitX = wxMin(toBlitX, clientArea.x);
1628       toBlitY = wxMin(toBlitY, clientArea.y);
1629
1630       // Make sure we're not negative
1631       toBlitX = wxMax(0, toBlitX);
1632       toBlitY = wxMax(0, toBlitY);
1633
1634       XCopyArea
1635       (
1636        XtDisplay(widget),
1637        (Pixmap) m_backingPixmap,
1638        XtWindow (widget),
1639        tempGC,
1640        scrollPosX, scrollPosY, // Start at the scroll position
1641        toBlitX, toBlitY,       // How much of the pixmap to copy
1642        0, 0                    // Destination
1643       );
1644     }
1645     else
1646     {
1647         wxWindowDC dc(this);
1648         // Set an erase event first
1649         wxEraseEvent eraseEvent(GetId(), &dc);
1650         eraseEvent.SetEventObject(this);
1651         GetEventHandler()->ProcessEvent(eraseEvent);
1652
1653         wxPaintEvent event(GetId());
1654         event.SetEventObject(this);
1655         GetEventHandler()->ProcessEvent(event);
1656
1657         m_needsRefresh = FALSE;
1658     }
1659 }
1660
1661 // ----------------------------------------------------------------------------
1662 // event handlers
1663 // ----------------------------------------------------------------------------
1664
1665 // Responds to colour changes: passes event on to children.
1666 void wxWindow::OnSysColourChanged(wxSysColourChangedEvent& event)
1667 {
1668     wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1669     while ( node )
1670     {
1671         // Only propagate to non-top-level windows
1672         wxWindow *win = node->GetData();
1673         if ( win->GetParent() )
1674         {
1675             wxSysColourChangedEvent event2;
1676             event.m_eventObject = win;
1677             win->GetEventHandler()->ProcessEvent(event2);
1678         }
1679
1680         node = node->GetNext();
1681     }
1682 }
1683
1684 void wxWindow::OnInternalIdle()
1685 {
1686     // This calls the UI-update mechanism (querying windows for
1687     // menu/toolbar/control state information)
1688     if (wxUpdateUIEvent::CanUpdate(this))
1689         UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
1690 }
1691
1692 // ----------------------------------------------------------------------------
1693 // accelerators
1694 // ----------------------------------------------------------------------------
1695
1696 bool wxWindow::ProcessAccelerator(wxKeyEvent& event)
1697 {
1698 #if wxUSE_ACCEL
1699     if (!m_acceleratorTable.Ok())
1700         return FALSE;
1701
1702     int count = m_acceleratorTable.GetCount();
1703     wxAcceleratorEntry* entries = m_acceleratorTable.GetEntries();
1704     int i;
1705     for (i = 0; i < count; i++)
1706     {
1707         wxAcceleratorEntry* entry = & (entries[i]);
1708         if (entry->MatchesEvent(event))
1709         {
1710             // Bingo, we have a match. Now find a control that matches the
1711             // entry command id.
1712
1713             // Need to go up to the top of the window hierarchy, since it might
1714             // be e.g. a menu item
1715             wxWindow* parent = this;
1716             while ( parent && !parent->IsTopLevel() )
1717                 parent = parent->GetParent();
1718
1719             if (!parent)
1720                 return FALSE;
1721
1722             wxFrame* frame = wxDynamicCast(parent, wxFrame);
1723             if ( frame )
1724             {
1725 #if wxUSE_MENUS
1726                 // Try for a menu command
1727                 if (frame->GetMenuBar())
1728                 {
1729                     wxMenuItem* item = frame->GetMenuBar()->FindItem(entry->GetCommand());
1730                     if (item)
1731                     {
1732                         wxCommandEvent commandEvent(wxEVT_COMMAND_MENU_SELECTED, entry->GetCommand());
1733                         commandEvent.SetEventObject(frame);
1734
1735                         // If ProcessEvent returns TRUE (it was handled), then
1736                         // the calling code will skip the event handling.
1737                         return frame->GetEventHandler()->ProcessEvent(commandEvent);
1738                     }
1739                 }
1740 #endif
1741             }
1742
1743             // Find a child matching the command id
1744             wxWindow* child = parent->FindWindow(entry->GetCommand());
1745
1746             // No such child
1747             if (!child)
1748                 return FALSE;
1749
1750             // Now we process those kinds of windows that we can.
1751             // For now, only buttons.
1752             if ( wxDynamicCast(child, wxButton) )
1753             {
1754                 wxCommandEvent commandEvent (wxEVT_COMMAND_BUTTON_CLICKED, child->GetId());
1755                 commandEvent.SetEventObject(child);
1756                 return child->GetEventHandler()->ProcessEvent(commandEvent);
1757             }
1758
1759             return FALSE;
1760         } // matches event
1761     }// for
1762 #endif
1763
1764     // We didn't match the key event against an accelerator.
1765     return FALSE;
1766 }
1767
1768 // ============================================================================
1769 // Motif-specific stuff from here on
1770 // ============================================================================
1771
1772 // ----------------------------------------------------------------------------
1773 // function which maintain the global hash table mapping Widgets to wxWidgets
1774 // ----------------------------------------------------------------------------
1775
1776 bool wxAddWindowToTable(Widget w, wxWindow *win)
1777 {
1778     wxWindow *oldItem = NULL;
1779     if ((oldItem = (wxWindow *)wxWidgetHashTable->Get ((long) w)))
1780     {
1781         wxLogDebug("Widget table clash: new widget is %ld, %s",
1782                    (long)w, win->GetClassInfo()->GetClassName());
1783         return FALSE;
1784     }
1785
1786     wxWidgetHashTable->Put((long) w, win);
1787
1788     wxLogTrace("widget", "Widget 0x%p <-> window %p (%s)",
1789                (WXWidget)w, win, win->GetClassInfo()->GetClassName());
1790
1791     return TRUE;
1792 }
1793
1794 wxWindow *wxGetWindowFromTable(Widget w)
1795 {
1796     return (wxWindow *)wxWidgetHashTable->Get((long) w);
1797 }
1798
1799 void wxDeleteWindowFromTable(Widget w)
1800 {
1801     wxLogTrace("widget", "Widget 0x%p", (WXWidget)w);
1802
1803     wxWidgetHashTable->Delete((long)w);
1804 }
1805
1806 // ----------------------------------------------------------------------------
1807 // add/remove window from the table
1808 // ----------------------------------------------------------------------------
1809
1810 // Add to hash table, add event handler
1811 bool wxWindow::AttachWidget (wxWindow* WXUNUSED(parent), WXWidget mainWidget,
1812                              WXWidget formWidget, int x, int y, int width, int height)
1813 {
1814     wxAddWindowToTable((Widget) mainWidget, this);
1815     XtAddEventHandler( (Widget) mainWidget,
1816                        ButtonPressMask | ButtonReleaseMask
1817                      | PointerMotionMask,
1818                        False,
1819                        wxPanelItemEventHandler,
1820                        (XtPointer) this);
1821
1822     if (!formWidget)
1823     {
1824         XtTranslations ptr;
1825         XtOverrideTranslations ((Widget) mainWidget,
1826             ptr = XtParseTranslationTable ("<Configure>: resize()"));
1827         XtFree ((char *) ptr);
1828     }
1829
1830     // Some widgets have a parent form widget, e.g. wxRadioBox
1831     if (formWidget)
1832     {
1833         if (!wxAddWindowToTable((Widget) formWidget, this))
1834             return FALSE;
1835
1836         XtTranslations ptr;
1837         XtOverrideTranslations ((Widget) formWidget,
1838             ptr = XtParseTranslationTable ("<Configure>: resize()"));
1839         XtFree ((char *) ptr);
1840     }
1841
1842     if (x == -1)
1843         x = 0;
1844     if (y == -1)
1845         y = 0;
1846     SetSize (x, y, width, height);
1847
1848     return TRUE;
1849 }
1850
1851 // Remove event handler, remove from hash table
1852 bool wxWindow::DetachWidget(WXWidget widget)
1853 {
1854     XtRemoveEventHandler( (Widget) widget,
1855                           ButtonPressMask | ButtonReleaseMask
1856                         | PointerMotionMask,
1857                           False,
1858                           wxPanelItemEventHandler,
1859                           (XtPointer)this);
1860
1861     wxDeleteWindowFromTable((Widget) widget);
1862     return TRUE;
1863 }
1864
1865 // ----------------------------------------------------------------------------
1866 // Motif-specific accessors
1867 // ----------------------------------------------------------------------------
1868
1869 WXWindow wxWindow::GetClientXWindow() const
1870 {
1871     Widget wMain = (Widget)GetClientWidget();
1872     if ( wMain )
1873         return (WXWindow) XtWindow(wMain);
1874     else
1875         return (WXWindow) 0;
1876 }
1877
1878 // Get the underlying X window
1879 WXWindow wxWindow::GetXWindow() const
1880 {
1881     Widget wMain = (Widget)GetMainWidget();
1882     if ( wMain )
1883         return (WXWindow) XtWindow(wMain);
1884     else
1885         return (WXWindow) 0;
1886 }
1887
1888 // Get the underlying X display
1889 WXDisplay *wxWindow::GetXDisplay() const
1890 {
1891     Widget wMain = (Widget)GetMainWidget();
1892     if ( wMain )
1893         return (WXDisplay*) XtDisplay(wMain);
1894     else
1895         return (WXDisplay*) NULL;
1896 }
1897
1898 WXWidget wxWindow::GetMainWidget() const
1899 {
1900     if (m_drawingArea)
1901         return m_drawingArea;
1902     else
1903         return m_mainWidget;
1904 }
1905
1906 WXWidget wxWindow::GetClientWidget() const
1907 {
1908     if (m_drawingArea != (WXWidget) 0)
1909         return m_drawingArea;
1910     else
1911         return GetMainWidget();
1912 }
1913
1914 WXWidget wxWindow::GetTopWidget() const
1915 {
1916     return GetMainWidget();
1917 }
1918
1919 WXWidget wxWindow::GetLabelWidget() const
1920 {
1921     return GetMainWidget();
1922 }
1923
1924 // ----------------------------------------------------------------------------
1925 // Motif callbacks
1926 // ----------------------------------------------------------------------------
1927
1928 // All widgets should have this as their resize proc.
1929 // OnSize sent to wxWindow via client data.
1930 void wxWidgetResizeProc(Widget w, XConfigureEvent *WXUNUSED(event),
1931                         String WXUNUSED(args)[], int *WXUNUSED(num_args))
1932 {
1933     wxWindow *win = wxGetWindowFromTable(w);
1934     if (!win)
1935         return;
1936
1937     if (win->PreResize())
1938     {
1939         int width, height;
1940         win->GetSize(&width, &height);
1941         wxSizeEvent sizeEvent(wxSize(width, height), win->GetId());
1942         sizeEvent.SetEventObject(win);
1943         win->GetEventHandler()->ProcessEvent(sizeEvent);
1944     }
1945 }
1946
1947 static void wxCanvasRepaintProc(Widget drawingArea,
1948                                 XtPointer clientData,
1949                                 XmDrawingAreaCallbackStruct * cbs)
1950 {
1951     if (!wxGetWindowFromTable(drawingArea))
1952         return;
1953
1954     XEvent * event = cbs->event;
1955     wxWindow * win = (wxWindow *) clientData;
1956
1957     switch (event->type)
1958     {
1959     case Expose:
1960         {
1961             win->AddUpdateRect(event->xexpose.x, event->xexpose.y,
1962                                event->xexpose.width, event->xexpose.height);
1963
1964             if (event -> xexpose.count == 0)
1965             {
1966                 win->DoPaint();
1967             }
1968             break;
1969         }
1970     }
1971 }
1972
1973 // Unable to deal with Enter/Leave without a separate EventHandler (Motif 1.1.4)
1974 static void wxCanvasEnterLeave(Widget drawingArea,
1975                                XtPointer WXUNUSED(clientData),
1976                                XCrossingEvent * event)
1977 {
1978     XmDrawingAreaCallbackStruct cbs;
1979     XEvent ev;
1980
1981     ((XCrossingEvent &) ev) = *event;
1982
1983     cbs.reason = XmCR_INPUT;
1984     cbs.event = &ev;
1985
1986     wxCanvasInputEvent(drawingArea, (XtPointer) NULL, &cbs);
1987 }
1988
1989 // Fix to make it work under Motif 1.0 (!)
1990 static void wxCanvasMotionEvent (Widget WXUNUSED(drawingArea),
1991                                  XButtonEvent *WXUNUSED(event))
1992 {
1993 #if XmVersion <= 1000
1994     XmDrawingAreaCallbackStruct cbs;
1995     XEvent ev;
1996
1997     ev = *((XEvent *) event);
1998     cbs.reason = XmCR_INPUT;
1999     cbs.event = &ev;
2000
2001     wxCanvasInputEvent (drawingArea, (XtPointer) NULL, &cbs);
2002 #endif // XmVersion <= 1000
2003 }
2004
2005 static void wxCanvasInputEvent(Widget drawingArea,
2006                                XtPointer WXUNUSED(data),
2007                                XmDrawingAreaCallbackStruct * cbs)
2008 {
2009     wxWindow *canvas = wxGetWindowFromTable(drawingArea);
2010     XEvent* xevent = cbs->event;
2011
2012     if (canvas==NULL)
2013         return;
2014
2015     if (cbs->reason != XmCR_INPUT)
2016         return;
2017
2018     switch (xevent->xany.type)
2019     {
2020     case EnterNotify:
2021     case LeaveNotify:
2022     case ButtonPress:
2023     case ButtonRelease:
2024     case MotionNotify:
2025         {
2026             wxMouseEvent wxevent(0);
2027             if (wxTranslateMouseEvent(wxevent, canvas, drawingArea, xevent))
2028             {
2029                 canvas->GetEventHandler()->ProcessEvent(wxevent);
2030             }
2031             break;
2032         }
2033     case KeyPress:
2034         {
2035             wxKeyEvent event (wxEVT_CHAR);
2036             if (wxTranslateKeyEvent (event, canvas, (Widget) 0, xevent))
2037             {
2038                 // Implement wxFrame::OnCharHook by checking ancestor.
2039                 wxWindow *parent = canvas;
2040                 while (parent && !parent->IsTopLevel())
2041                     parent = parent->GetParent();
2042
2043                 if (parent)
2044                 {
2045                     event.SetEventType(wxEVT_CHAR_HOOK);
2046                     if (parent->GetEventHandler()->ProcessEvent(event))
2047                         return;
2048                 }
2049
2050                 // For simplicity, OnKeyDown is the same as OnChar
2051                 // TODO: filter modifier key presses from OnChar
2052                 event.SetEventType(wxEVT_KEY_DOWN);
2053
2054                 // Only process OnChar if OnKeyDown didn't swallow it
2055                 if (!canvas->GetEventHandler()->ProcessEvent (event))
2056                 {
2057                     event.SetEventType(wxEVT_CHAR);
2058                     canvas->GetEventHandler()->ProcessEvent (event);
2059                 }
2060             }
2061             break;
2062         }
2063     case KeyRelease:
2064         {
2065             wxKeyEvent event (wxEVT_KEY_UP);
2066             if (wxTranslateKeyEvent (event, canvas, (Widget) 0, xevent))
2067             {
2068                 canvas->GetEventHandler()->ProcessEvent (event);
2069             }
2070             break;
2071         }
2072     case FocusIn:
2073         {
2074             if (xevent->xfocus.detail != NotifyPointer)
2075             {
2076                 wxFocusEvent event(wxEVT_SET_FOCUS, canvas->GetId());
2077                 event.SetEventObject(canvas);
2078                 canvas->GetEventHandler()->ProcessEvent(event);
2079             }
2080             break;
2081         }
2082     case FocusOut:
2083         {
2084             if (xevent->xfocus.detail != NotifyPointer)
2085             {
2086                 wxFocusEvent event(wxEVT_KILL_FOCUS, canvas->GetId());
2087                 event.SetEventObject(canvas);
2088                 canvas->GetEventHandler()->ProcessEvent(event);
2089             }
2090             break;
2091         }
2092     default:
2093         break;
2094     }
2095 }
2096
2097 static void wxPanelItemEventHandler(Widget    wid,
2098                                     XtPointer WXUNUSED(client_data),
2099                                     XEvent*   event,
2100                                     Boolean  *continueToDispatch)
2101 {
2102     // Widget can be a label or the actual widget.
2103
2104     wxWindow *window = wxGetWindowFromTable(wid);
2105     if (window)
2106     {
2107         wxMouseEvent wxevent(0);
2108         if (wxTranslateMouseEvent(wxevent, window, wid, event))
2109         {
2110             window->GetEventHandler()->ProcessEvent(wxevent);
2111         }
2112     }
2113
2114     // TODO: probably the key to allowing default behaviour to happen. Say we
2115     // set a m_doDefault flag to FALSE at the start of this function. Then in
2116     // e.g. wxWindow::OnMouseEvent we can call Default() which sets this flag to
2117     // TRUE, indicating that default processing can happen. Thus, behaviour can
2118     // appear to be overridden just by adding an event handler and not calling
2119     // wxWindow::OnWhatever. ALSO, maybe we can use this instead of the current
2120     // way of handling drawing area events, to simplify things.
2121     *continueToDispatch = True;
2122 }
2123
2124 static void wxScrollBarCallback(Widget scrollbar,
2125                                 XtPointer clientData,
2126                                 XmScrollBarCallbackStruct *cbs)
2127 {
2128     wxWindow *win = wxGetWindowFromTable(scrollbar);
2129     wxOrientation orientation = (wxOrientation)(int)clientData;
2130
2131     wxEventType eventType = wxEVT_NULL;
2132     switch (cbs->reason)
2133     {
2134     case XmCR_INCREMENT:
2135         {
2136             eventType = wxEVT_SCROLLWIN_LINEDOWN;
2137             break;
2138         }
2139     case XmCR_DECREMENT:
2140         {
2141             eventType = wxEVT_SCROLLWIN_LINEUP;
2142             break;
2143         }
2144     case XmCR_DRAG:
2145         {
2146             eventType = wxEVT_SCROLLWIN_THUMBTRACK;
2147             break;
2148         }
2149     case XmCR_VALUE_CHANGED:
2150         {
2151             eventType = wxEVT_SCROLLWIN_THUMBRELEASE;
2152             break;
2153         }
2154     case XmCR_PAGE_INCREMENT:
2155         {
2156             eventType = wxEVT_SCROLLWIN_PAGEDOWN;
2157             break;
2158         }
2159     case XmCR_PAGE_DECREMENT:
2160         {
2161             eventType = wxEVT_SCROLLWIN_PAGEUP;
2162             break;
2163         }
2164     case XmCR_TO_TOP:
2165         {
2166             eventType = wxEVT_SCROLLWIN_TOP;
2167             break;
2168         }
2169     case XmCR_TO_BOTTOM:
2170         {
2171             eventType = wxEVT_SCROLLWIN_BOTTOM;
2172             break;
2173         }
2174     default:
2175         {
2176             // Should never get here
2177             wxFAIL_MSG("Unknown scroll event.");
2178             break;
2179         }
2180     }
2181
2182     wxScrollWinEvent event(eventType,
2183                            cbs->value,
2184                            orientation);
2185     event.SetEventObject( win );
2186     win->GetEventHandler()->ProcessEvent(event);
2187 }
2188
2189 // For repainting arbitrary windows
2190 void wxUniversalRepaintProc(Widget w, XtPointer WXUNUSED(c_data), XEvent *event, char *)
2191 {
2192     Window window;
2193     Display *display;
2194
2195     wxWindow* win = wxGetWindowFromTable(w);
2196     if (!win)
2197         return;
2198
2199     switch(event -> type)
2200     {
2201     case Expose:
2202         {
2203             window = (Window) win -> GetXWindow();
2204             display = (Display *) win -> GetXDisplay();
2205
2206             win->AddUpdateRect(event->xexpose.x, event->xexpose.y,
2207                                event->xexpose.width, event->xexpose.height);
2208
2209             if (event -> xexpose.count == 0)
2210             {
2211                 win->DoPaint();
2212             }
2213
2214             break;
2215         }
2216     }
2217 }
2218
2219 // ----------------------------------------------------------------------------
2220 // TranslateXXXEvent() functions
2221 // ----------------------------------------------------------------------------
2222
2223 bool wxTranslateMouseEvent(wxMouseEvent& wxevent, wxWindow *win,
2224                            Widget widget, const XEvent *xevent)
2225 {
2226     switch (xevent->xany.type)
2227     {
2228         case EnterNotify:
2229         case LeaveNotify:
2230 #if 0
2231             fprintf(stderr, "Widget 0x%p <-> window %p (%s), %s\n",
2232                     (WXWidget)widget, win, win->GetClassInfo()->GetClassName(),
2233                     (xevent->xany.type == EnterNotify ? "ENTER" : "LEAVE"));
2234 #endif
2235         case ButtonPress:
2236         case ButtonRelease:
2237         case MotionNotify:
2238         {
2239             int eventx = xevent->xbutton.x, eventy = xevent->xbutton.y;
2240
2241             wxEventType eventType = wxEVT_NULL;
2242
2243             if (xevent->xany.type == LeaveNotify)
2244             {
2245                 eventType = wxEVT_LEAVE_WINDOW;
2246             }
2247             if (xevent->xany.type == EnterNotify)
2248             {
2249                 eventType = wxEVT_ENTER_WINDOW;
2250             }
2251             else if (xevent->xany.type == MotionNotify)
2252             {
2253                 eventType = wxEVT_MOTION;
2254
2255                 if (xevent->xmotion.is_hint == NotifyHint)
2256                 {
2257                     Window root, child;
2258                     int x_root, y_root;
2259                     unsigned int state;
2260                     Display *dpy = XtDisplay (widget);
2261
2262                     XQueryPointer (dpy, XtWindow (widget),
2263                         &root, &child,
2264                         &x_root, &y_root, &eventx, &eventy, &state);
2265                 }
2266             }
2267             else if (xevent->xany.type == ButtonPress)
2268             {
2269                 wxevent.SetTimestamp(xevent->xbutton.time);
2270                 int button = 0;
2271                 if (xevent->xbutton.button == Button1)
2272                 {
2273                     eventType = wxEVT_LEFT_DOWN;
2274                     button = 1;
2275                 }
2276                 else if (xevent->xbutton.button == Button2)
2277                 {
2278                     eventType = wxEVT_MIDDLE_DOWN;
2279                     button = 2;
2280                 }
2281                 else if (xevent->xbutton.button == Button3)
2282                 {
2283                     eventType = wxEVT_RIGHT_DOWN;
2284                     button = 3;
2285                 }
2286
2287                 // check for a double click
2288                 //
2289                 long dclickTime = XtGetMultiClickTime(xevent->xany.display);
2290                 long ts = wxevent.GetTimestamp();
2291
2292                 int buttonLast = win->GetLastClickedButton();
2293                 long lastTS = win->GetLastClickTime();
2294                 if ( buttonLast && buttonLast == button &&
2295                      (ts - lastTS) < dclickTime )
2296                 {
2297                     // I have a dclick
2298                     win->SetLastClick(0, ts);
2299                     if ( eventType == wxEVT_LEFT_DOWN )
2300                         eventType = wxEVT_LEFT_DCLICK;
2301                     else if ( eventType == wxEVT_MIDDLE_DOWN )
2302                         eventType = wxEVT_MIDDLE_DCLICK;
2303                     else if ( eventType == wxEVT_RIGHT_DOWN )
2304                         eventType = wxEVT_RIGHT_DCLICK;
2305                 }
2306                 else
2307                 {
2308                     // not fast enough or different button
2309                     win->SetLastClick(button, ts);
2310                 }
2311             }
2312             else if (xevent->xany.type == ButtonRelease)
2313             {
2314                 if (xevent->xbutton.button == Button1)
2315                 {
2316                     eventType = wxEVT_LEFT_UP;
2317                 }
2318                 else if (xevent->xbutton.button == Button2)
2319                 {
2320                     eventType = wxEVT_MIDDLE_UP;
2321                 }
2322                 else if (xevent->xbutton.button == Button3)
2323                 {
2324                     eventType = wxEVT_RIGHT_UP;
2325                 }
2326                 else
2327                     return FALSE;
2328             }
2329             else
2330             {
2331                 return FALSE;
2332             }
2333
2334             wxevent.SetEventType(eventType);
2335
2336             Position x1, y1;
2337             XtVaGetValues(widget, XmNx, &x1, XmNy, &y1, NULL);
2338
2339             int x2, y2;
2340             win->GetPosition(&x2, &y2);
2341
2342             // The button x/y must be translated to wxWidgets
2343             // window space - the widget might be a label or button,
2344             // within a form.
2345             int dx = 0;
2346             int dy = 0;
2347             if (widget != (Widget)win->GetMainWidget())
2348             {
2349                 dx = x1;
2350                 dy = y1;
2351             }
2352
2353             wxevent.m_x = eventx + dx;
2354             wxevent.m_y = eventy + dy;
2355
2356             wxevent.m_leftDown = ((eventType == wxEVT_LEFT_DOWN)
2357                 || (event_left_is_down (xevent)
2358                 && (eventType != wxEVT_LEFT_UP)));
2359             wxevent.m_middleDown = ((eventType == wxEVT_MIDDLE_DOWN)
2360                 || (event_middle_is_down (xevent)
2361                 && (eventType != wxEVT_MIDDLE_UP)));
2362             wxevent.m_rightDown = ((eventType == wxEVT_RIGHT_DOWN)
2363                 || (event_right_is_down (xevent)
2364                 && (eventType != wxEVT_RIGHT_UP)));
2365
2366             wxevent.m_shiftDown = xevent->xbutton.state & ShiftMask;
2367             wxevent.m_controlDown = xevent->xbutton.state & ControlMask;
2368             wxevent.m_altDown = xevent->xbutton.state & Mod3Mask;
2369             wxevent.m_metaDown = xevent->xbutton.state & Mod1Mask;
2370
2371             wxevent.SetId(win->GetId());
2372             wxevent.SetEventObject(win);
2373
2374             return TRUE;
2375         }
2376     }
2377     return FALSE;
2378 }
2379
2380 bool wxTranslateKeyEvent(wxKeyEvent& wxevent, wxWindow *win,
2381                          Widget WXUNUSED(widget), const XEvent *xevent)
2382 {
2383     switch (xevent->xany.type)
2384     {
2385     case KeyPress:
2386     case KeyRelease:
2387         {
2388             char buf[20];
2389
2390             KeySym keySym;
2391             (void) XLookupString((XKeyEvent *)xevent, buf, 20, &keySym, NULL);
2392             int id = wxCharCodeXToWX (keySym);
2393             // id may be WXK_xxx code - these are outside ASCII range, so we
2394             // can't just use toupper() on id
2395             if (id >= 'a' && id <= 'z')
2396                 id = toupper(id);
2397
2398             if (xevent->xkey.state & ShiftMask)
2399                 wxevent.m_shiftDown = TRUE;
2400             if (xevent->xkey.state & ControlMask)
2401                 wxevent.m_controlDown = TRUE;
2402             if (xevent->xkey.state & Mod3Mask)
2403                 wxevent.m_altDown = TRUE;
2404             if (xevent->xkey.state & Mod1Mask)
2405                 wxevent.m_metaDown = TRUE;
2406             wxevent.SetEventObject(win);
2407             wxevent.m_keyCode = id;
2408             wxevent.SetTimestamp(xevent->xkey.time);
2409
2410             wxevent.m_x = xevent->xbutton.x;
2411             wxevent.m_y = xevent->xbutton.y;
2412
2413             if (id > -1)
2414                 return TRUE;
2415             else
2416                 return FALSE;
2417             break;
2418         }
2419     default:
2420         break;
2421     }
2422     return FALSE;
2423 }
2424
2425 // ----------------------------------------------------------------------------
2426 // Colour stuff
2427 // ----------------------------------------------------------------------------
2428
2429 #define YAllocColor XAllocColor
2430 XColor g_itemColors[5];
2431 int wxComputeColours (Display *display, wxColour * back, wxColour * fore)
2432 {
2433     int result;
2434     static XmColorProc colorProc;
2435
2436     result = wxNO_COLORS;
2437
2438     if (back)
2439     {
2440         g_itemColors[0].red = (((long) back->Red ()) << 8);
2441         g_itemColors[0].green = (((long) back->Green ()) << 8);
2442         g_itemColors[0].blue = (((long) back->Blue ()) << 8);
2443         g_itemColors[0].flags = DoRed | DoGreen | DoBlue;
2444         if (colorProc == (XmColorProc) NULL)
2445         {
2446             // Get a ptr to the actual function
2447             colorProc = XmSetColorCalculation ((XmColorProc) NULL);
2448             // And set it back to motif.
2449             XmSetColorCalculation (colorProc);
2450         }
2451         (*colorProc) (&g_itemColors[wxBACK_INDEX],
2452             &g_itemColors[wxFORE_INDEX],
2453             &g_itemColors[wxSELE_INDEX],
2454             &g_itemColors[wxTOPS_INDEX],
2455             &g_itemColors[wxBOTS_INDEX]);
2456         result = wxBACK_COLORS;
2457     }
2458     if (fore)
2459     {
2460         g_itemColors[wxFORE_INDEX].red = (((long) fore->Red ()) << 8);
2461         g_itemColors[wxFORE_INDEX].green = (((long) fore->Green ()) << 8);
2462         g_itemColors[wxFORE_INDEX].blue = (((long) fore->Blue ()) << 8);
2463         g_itemColors[wxFORE_INDEX].flags = DoRed | DoGreen | DoBlue;
2464         if (result == wxNO_COLORS)
2465             result = wxFORE_COLORS;
2466     }
2467
2468     Display *dpy = display;
2469     Colormap cmap = (Colormap) wxTheApp->GetMainColormap((WXDisplay*) dpy);
2470
2471     if (back)
2472     {
2473         /* 5 Colours to allocate */
2474         for (int i = 0; i < 5; i++)
2475             if (!YAllocColor (dpy, cmap, &g_itemColors[i]))
2476                 result = wxNO_COLORS;
2477     }
2478     else if (fore)
2479     {
2480         /* Only 1 colour to allocate */
2481         if (!YAllocColor (dpy, cmap, &g_itemColors[wxFORE_INDEX]))
2482             result = wxNO_COLORS;
2483     }
2484
2485     return result;
2486 }
2487
2488 // Changes the foreground and background colours to be derived from the current
2489 // background colour. To change the foreground colour, you must call
2490 // SetForegroundColour explicitly.
2491 void wxWindow::ChangeBackgroundColour()
2492 {
2493     WXWidget mainWidget = GetMainWidget();
2494     if ( mainWidget )
2495         wxDoChangeBackgroundColour(mainWidget, m_backgroundColour);
2496 }
2497
2498 void wxWindow::ChangeForegroundColour()
2499 {
2500     WXWidget mainWidget = GetMainWidget();
2501     if ( mainWidget )
2502         wxDoChangeForegroundColour(mainWidget, m_foregroundColour);
2503     if ( m_scrolledWindow && mainWidget != m_scrolledWindow )
2504         wxDoChangeForegroundColour(m_scrolledWindow, m_foregroundColour);
2505 }
2506
2507 bool wxWindow::SetBackgroundColour(const wxColour& col)
2508 {
2509     if ( !wxWindowBase::SetBackgroundColour(col) )
2510         return FALSE;
2511
2512     ChangeBackgroundColour();
2513
2514     return TRUE;
2515 }
2516
2517 bool wxWindow::SetForegroundColour(const wxColour& col)
2518 {
2519     if ( !wxWindowBase::SetForegroundColour(col) )
2520         return FALSE;
2521
2522     ChangeForegroundColour();
2523
2524     return TRUE;
2525 }
2526
2527 void wxWindow::ChangeFont(bool keepOriginalSize)
2528 {
2529     // Note that this causes the widget to be resized back
2530     // to its original size! We therefore have to set the size
2531     // back again. TODO: a better way in Motif?
2532     Widget w = (Widget) GetLabelWidget(); // Usually the main widget
2533     if (w && m_font.Ok())
2534     {
2535         int width, height, width1, height1;
2536         GetSize(& width, & height);
2537
2538         wxDoChangeFont( GetLabelWidget(), m_font );
2539
2540         GetSize(& width1, & height1);
2541         if (keepOriginalSize && (width != width1 || height != height1))
2542         {
2543             SetSize(-1, -1, width, height);
2544         }
2545     }
2546 }
2547
2548 // ----------------------------------------------------------------------------
2549 // global functions
2550 // ----------------------------------------------------------------------------
2551
2552 wxWindow *wxGetActiveWindow()
2553 {
2554     // TODO
2555     wxFAIL_MSG("Not implemented");
2556     return NULL;
2557 }
2558
2559 /* static */
2560 wxWindow *wxWindowBase::GetCapture()
2561 {
2562     return (wxWindow *)g_captureWindow;
2563 }
2564
2565
2566 // Find the wxWindow at the current mouse position, returning the mouse
2567 // position.
2568 wxWindow* wxFindWindowAtPointer(wxPoint& pt)
2569 {
2570     return wxFindWindowAtPoint(wxGetMousePosition());
2571 }
2572
2573 // Get the current mouse position.
2574 wxPoint wxGetMousePosition()
2575 {
2576     Display *display = wxGlobalDisplay();
2577     Window rootWindow = RootWindowOfScreen (DefaultScreenOfDisplay(display));
2578     Window rootReturn, childReturn;
2579     int rootX, rootY, winX, winY;
2580     unsigned int maskReturn;
2581
2582     XQueryPointer (display,
2583                    rootWindow,
2584                    &rootReturn,
2585                    &childReturn,
2586                    &rootX, &rootY, &winX, &winY, &maskReturn);
2587     return wxPoint(rootX, rootY);
2588 }
2589
2590
2591 // ----------------------------------------------------------------------------
2592 // wxNoOptimize: switch off size optimization
2593 // ----------------------------------------------------------------------------
2594
2595 int wxNoOptimize::ms_count = 0;
2596