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 not 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::DoFindFocus()
 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 void wxWindow::DoMoveWindowIntr(int xx, int yy, int w, int h,
1376                                 int flags)
1377 {
1378     if (m_drawingArea)
1379     {
1380         Widget drawingArea = (Widget) m_drawingArea;
1381         Widget borderOrScrolled = m_borderWidget ?
1382             (Widget) m_borderWidget :
1383             (Widget) m_scrolledWindow;
1384
1385         bool managed = XtIsManaged(borderOrScrolled);
1386         if (managed)
1387             XtUnmanageChild (borderOrScrolled);
1388         XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_ANY, NULL);
1389
1390         if (flags & wxMOVE_X)
1391             XtVaSetValues (borderOrScrolled,
1392                            XmNx, xx,
1393                            NULL);
1394         if (flags & wxMOVE_Y)
1395             XtVaSetValues (borderOrScrolled,
1396                            XmNy, yy,
1397                            NULL);
1398
1399         if (flags & wxMOVE_WIDTH)
1400         {
1401             if (m_borderWidget)
1402             {
1403                 XtVaSetValues ((Widget) m_borderWidget, XmNwidth, w, NULL);
1404                 short thick, margin;
1405                 XtVaGetValues ((Widget) m_borderWidget,
1406                                XmNshadowThickness, &thick,
1407                                XmNmarginWidth, &margin,
1408                                NULL);
1409                 w -= 2 * (thick + margin);
1410             }
1411
1412             if( w < 1 ) w = 1;
1413             XtVaSetValues ((Widget) m_scrolledWindow, XmNwidth, w, NULL);
1414         }
1415
1416         if (flags & wxMOVE_HEIGHT)
1417         {
1418             if (m_borderWidget)
1419             {
1420                 XtVaSetValues ((Widget) m_borderWidget, XmNheight, h, NULL);
1421                 short thick, margin;
1422                 XtVaGetValues ((Widget) m_borderWidget,
1423                                XmNshadowThickness, &thick,
1424                                XmNmarginHeight, &margin,
1425                                NULL);
1426                 h -= 2 * (thick + margin);
1427             }
1428
1429             if( h < 1 ) h = 1;
1430             XtVaSetValues ((Widget) m_scrolledWindow, XmNheight, h, NULL);
1431         }
1432
1433         if (managed)
1434             XtManageChild (borderOrScrolled);
1435         XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_NONE, NULL);
1436     }
1437     else
1438     {
1439         if( xx < 0 ) xx = 0;
1440         if( yy < 0 ) yy = 0;
1441         if( w < 1 ) w = 1;
1442         if( h < 1 ) h = 1;
1443
1444         XtVaSetValues((Widget)GetTopWidget(),
1445                       XmNx, xx,
1446                       XmNy, yy,
1447                       XmNwidth, w,
1448                       XmNheight, h,
1449                       NULL);
1450     }
1451 }
1452
1453 void wxWindow::DoMoveWindow(int x, int y, int width, int height)
1454 {
1455     DoMoveWindowIntr (x, y, width, height,
1456                       wxMOVE_X|wxMOVE_Y|wxMOVE_WIDTH|wxMOVE_HEIGHT);
1457 }
1458
1459 // ---------------------------------------------------------------------------
1460 // text metrics
1461 // ---------------------------------------------------------------------------
1462
1463 int wxWindow::GetCharHeight() const
1464 {
1465     wxCHECK_MSG( m_font.Ok(), 0, "valid window font needed" );
1466
1467     int height;
1468
1469     wxGetTextExtent (GetXDisplay(), m_font, 1.0,
1470                      "x", NULL, &height, NULL, NULL);
1471
1472     return height;
1473 }
1474
1475 int wxWindow::GetCharWidth() const
1476 {
1477     wxCHECK_MSG( m_font.Ok(), 0, "valid window font needed" );
1478
1479     int width;
1480
1481     wxGetTextExtent (GetXDisplay(), m_font, 1.0,
1482                      "x", &width, NULL, NULL, NULL);
1483
1484     return width;
1485 }
1486
1487 void wxWindow::GetTextExtent(const wxString& string,
1488                              int *x, int *y,
1489                              int *descent, int *externalLeading,
1490                              const wxFont *theFont) const
1491 {
1492     const wxFont *fontToUse = theFont ? theFont : &m_font;
1493
1494     wxCHECK_RET( fontToUse->Ok(), "valid window font needed" );
1495
1496     if (externalLeading)
1497         *externalLeading = 0;
1498     wxGetTextExtent (GetXDisplay(), *fontToUse, 1.0,
1499                      string, x, y, NULL, descent);
1500 }
1501
1502 // ----------------------------------------------------------------------------
1503 // painting
1504 // ----------------------------------------------------------------------------
1505
1506 void wxWindow::AddUpdateRect(int x, int y, int w, int h)
1507 {
1508     m_updateRegion.Union( x, y, w, h );
1509 }
1510
1511 void wxWindow::Refresh(bool eraseBack, const wxRect *rect)
1512 {
1513     m_needsRefresh = true;
1514     Display *display = XtDisplay((Widget) GetMainWidget());
1515     Window thisWindow = XtWindow((Widget) GetMainWidget());
1516
1517     XExposeEvent dummyEvent;
1518     int width, height;
1519     GetSize(&width, &height);
1520
1521     dummyEvent.type = Expose;
1522     dummyEvent.display = display;
1523     dummyEvent.send_event = True;
1524     dummyEvent.window = thisWindow;
1525     if (rect)
1526     {
1527         dummyEvent.x = rect->x;
1528         dummyEvent.y = rect->y;
1529         dummyEvent.width = rect->width;
1530         dummyEvent.height = rect->height;
1531     }
1532     else
1533     {
1534         dummyEvent.x = 0;
1535         dummyEvent.y = 0;
1536         dummyEvent.width = width;
1537         dummyEvent.height = height;
1538     }
1539     dummyEvent.count = 0;
1540
1541     if (eraseBack)
1542     {
1543         wxClientDC dc(this);
1544         wxBrush backgroundBrush(GetBackgroundColour(), wxSOLID);
1545         dc.SetBackground(backgroundBrush);
1546         if (rect)
1547             dc.Clear(*rect);
1548         else
1549             dc.Clear();
1550     }
1551
1552     XSendEvent(display, thisWindow, False, ExposureMask, (XEvent *)&dummyEvent);
1553 }
1554
1555 void wxWindow::DoPaint()
1556 {
1557     //TODO : make a temporary gc so we can do the XCopyArea below
1558     if (m_backingPixmap && !m_needsRefresh)
1559     {
1560       wxPaintDC dc(this);
1561
1562       GC tempGC = (GC) dc.GetBackingGC();
1563
1564       Widget widget = (Widget) GetMainWidget();
1565
1566       int scrollPosX = 0;
1567       int scrollPosY = 0;
1568
1569       // We have to test whether it's a wxScrolledWindow (hack!) because
1570       // otherwise we don't know how many pixels have been scrolled. We might
1571       // solve this in the future by defining virtual wxWindow functions to get
1572       // the scroll position in pixels. Or, each kind of scrolled window has to
1573       // implement backing stores itself, using generic wxWidgets code.
1574       wxScrolledWindow* scrolledWindow = wxDynamicCast(this, wxScrolledWindow);
1575       if ( scrolledWindow )
1576       {
1577           int x, y;
1578           scrolledWindow->CalcScrolledPosition(0, 0, &x, &y);
1579
1580           scrollPosX = - x;
1581           scrollPosY = - y;
1582       }
1583
1584       // TODO: This could be optimized further by only copying the areas in the
1585       //       current update region.
1586
1587       // Only blit the part visible in the client area. The backing pixmap
1588       // always starts at 0, 0 but we may be looking at only a portion of it.
1589       wxSize clientArea = GetClientSize();
1590       int toBlitX = m_pixmapWidth - scrollPosX;
1591       int toBlitY = m_pixmapHeight - scrollPosY;
1592
1593       // Copy whichever is samller, the amount of pixmap we have to copy,
1594       // or the size of the client area.
1595       toBlitX = wxMin(toBlitX, clientArea.x);
1596       toBlitY = wxMin(toBlitY, clientArea.y);
1597
1598       // Make sure we're not negative
1599       toBlitX = wxMax(0, toBlitX);
1600       toBlitY = wxMax(0, toBlitY);
1601
1602       XCopyArea
1603       (
1604        XtDisplay(widget),
1605        (Pixmap) m_backingPixmap,
1606        XtWindow (widget),
1607        tempGC,
1608        scrollPosX, scrollPosY, // Start at the scroll position
1609        toBlitX, toBlitY,       // How much of the pixmap to copy
1610        0, 0                    // Destination
1611       );
1612     }
1613     else
1614     {
1615         wxWindowDC dc(this);
1616         // Set an erase event first
1617         wxEraseEvent eraseEvent(GetId(), &dc);
1618         eraseEvent.SetEventObject(this);
1619         GetEventHandler()->ProcessEvent(eraseEvent);
1620
1621         wxPaintEvent event(GetId());
1622         event.SetEventObject(this);
1623         GetEventHandler()->ProcessEvent(event);
1624
1625         m_needsRefresh = false;
1626     }
1627 }
1628
1629 // ----------------------------------------------------------------------------
1630 // event handlers
1631 // ----------------------------------------------------------------------------
1632
1633 // Responds to colour changes: passes event on to children.
1634 void wxWindow::OnSysColourChanged(wxSysColourChangedEvent& event)
1635 {
1636     wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1637     while ( node )
1638     {
1639         // Only propagate to non-top-level windows
1640         wxWindow *win = node->GetData();
1641         if ( win->GetParent() )
1642         {
1643             wxSysColourChangedEvent event2;
1644             event.SetEventObject(win);
1645             win->GetEventHandler()->ProcessEvent(event2);
1646         }
1647
1648         node = node->GetNext();
1649     }
1650 }
1651
1652 void wxWindow::OnInternalIdle()
1653 {
1654     // This calls the UI-update mechanism (querying windows for
1655     // menu/toolbar/control state information)
1656     if (wxUpdateUIEvent::CanUpdate(this))
1657         UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
1658 }
1659
1660 // ----------------------------------------------------------------------------
1661 // accelerators
1662 // ----------------------------------------------------------------------------
1663
1664 bool wxWindow::ProcessAccelerator(wxKeyEvent& event)
1665 {
1666 #if wxUSE_ACCEL
1667     if (!m_acceleratorTable.Ok())
1668         return false;
1669
1670     int count = m_acceleratorTable.GetCount();
1671     wxAcceleratorEntry* entries = m_acceleratorTable.GetEntries();
1672     int i;
1673     for (i = 0; i < count; i++)
1674     {
1675         wxAcceleratorEntry* entry = & (entries[i]);
1676         if (entry->MatchesEvent(event))
1677         {
1678             // Bingo, we have a match. Now find a control that matches the
1679             // entry command id.
1680
1681             // Need to go up to the top of the window hierarchy, since it might
1682             // be e.g. a menu item
1683             wxWindow* parent = this;
1684             while ( parent && !parent->IsTopLevel() )
1685                 parent = parent->GetParent();
1686
1687             if (!parent)
1688                 return false;
1689
1690             wxFrame* frame = wxDynamicCast(parent, wxFrame);
1691             if ( frame )
1692             {
1693 #if wxUSE_MENUS
1694                 // Try for a menu command
1695                 if (frame->GetMenuBar())
1696                 {
1697                     wxMenuItem* item = frame->GetMenuBar()->FindItem(entry->GetCommand());
1698                     if (item)
1699                     {
1700                         wxCommandEvent commandEvent(wxEVT_COMMAND_MENU_SELECTED, entry->GetCommand());
1701                         commandEvent.SetEventObject(frame);
1702
1703                         // If ProcessEvent returns true (it was handled), then
1704                         // the calling code will skip the event handling.
1705                         return frame->GetEventHandler()->ProcessEvent(commandEvent);
1706                     }
1707                 }
1708 #endif
1709             }
1710
1711             // Find a child matching the command id
1712             wxWindow* child = parent->FindWindow(entry->GetCommand());
1713
1714             // No such child
1715             if (!child)
1716                 return false;
1717
1718             // Now we process those kinds of windows that we can.
1719             // For now, only buttons.
1720             if ( wxDynamicCast(child, wxButton) )
1721             {
1722                 wxCommandEvent commandEvent (wxEVT_COMMAND_BUTTON_CLICKED, child->GetId());
1723                 commandEvent.SetEventObject(child);
1724                 return child->GetEventHandler()->ProcessEvent(commandEvent);
1725             }
1726
1727             return false;
1728         } // matches event
1729     }// for
1730 #endif
1731
1732     // We didn't match the key event against an accelerator.
1733     return false;
1734 }
1735
1736 // ============================================================================
1737 // Motif-specific stuff from here on
1738 // ============================================================================
1739
1740 // ----------------------------------------------------------------------------
1741 // function which maintain the global hash table mapping Widgets to wxWidgets
1742 // ----------------------------------------------------------------------------
1743
1744 bool wxAddWindowToTable(Widget w, wxWindow *win)
1745 {
1746     wxWindow *oldItem = NULL;
1747     if ((oldItem = (wxWindow *)wxWidgetHashTable->Get ((long) w)))
1748     {
1749         wxLogDebug("Widget table clash: new widget is %ld, %s",
1750                    (long)w, win->GetClassInfo()->GetClassName());
1751         return false;
1752     }
1753
1754     wxWidgetHashTable->Put((long) w, win);
1755
1756     wxLogTrace("widget", "Widget 0x%p <-> window %p (%s)",
1757                (WXWidget)w, win, win->GetClassInfo()->GetClassName());
1758
1759     return true;
1760 }
1761
1762 wxWindow *wxGetWindowFromTable(Widget w)
1763 {
1764     return (wxWindow *)wxWidgetHashTable->Get((long) w);
1765 }
1766
1767 void wxDeleteWindowFromTable(Widget w)
1768 {
1769     wxLogTrace("widget", "Widget 0x%p", (WXWidget)w);
1770
1771     wxWidgetHashTable->Delete((long)w);
1772 }
1773
1774 // ----------------------------------------------------------------------------
1775 // add/remove window from the table
1776 // ----------------------------------------------------------------------------
1777
1778 // Add to hash table, add event handler
1779 bool wxWindow::AttachWidget (wxWindow* WXUNUSED(parent), WXWidget mainWidget,
1780                              WXWidget formWidget, int x, int y, int width, int height)
1781 {
1782     wxAddWindowToTable((Widget) mainWidget, this);
1783     XtAddEventHandler( (Widget) mainWidget,
1784                        ButtonPressMask | ButtonReleaseMask
1785                      | PointerMotionMask,
1786                        False,
1787                        wxPanelItemEventHandler,
1788                        (XtPointer) this);
1789
1790     if (!formWidget)
1791     {
1792         XtTranslations ptr;
1793         XtOverrideTranslations ((Widget) mainWidget,
1794             ptr = XtParseTranslationTable ("<Configure>: resize()"));
1795         XtFree ((char *) ptr);
1796     }
1797
1798     // Some widgets have a parent form widget, e.g. wxRadioBox
1799     if (formWidget)
1800     {
1801         if (!wxAddWindowToTable((Widget) formWidget, this))
1802             return false;
1803
1804         XtTranslations ptr;
1805         XtOverrideTranslations ((Widget) formWidget,
1806             ptr = XtParseTranslationTable ("<Configure>: resize()"));
1807         XtFree ((char *) ptr);
1808     }
1809
1810     if (x == -1)
1811         x = 0;
1812     if (y == -1)
1813         y = 0;
1814     DoSetSize (x, y, width, height, wxSIZE_USE_EXISTING);
1815
1816     return true;
1817 }
1818
1819 // Remove event handler, remove from hash table
1820 bool wxWindow::DetachWidget(WXWidget widget)
1821 {
1822     XtRemoveEventHandler( (Widget) widget,
1823                           ButtonPressMask | ButtonReleaseMask
1824                         | PointerMotionMask,
1825                           False,
1826                           wxPanelItemEventHandler,
1827                           (XtPointer)this);
1828
1829     wxDeleteWindowFromTable((Widget) widget);
1830     return true;
1831 }
1832
1833 // ----------------------------------------------------------------------------
1834 // Motif-specific accessors
1835 // ----------------------------------------------------------------------------
1836
1837 WXWindow wxWindow::GetClientXWindow() const
1838 {
1839     Widget wMain = (Widget)GetClientWidget();
1840     if ( wMain )
1841         return (WXWindow) XtWindow(wMain);
1842     else
1843         return (WXWindow) 0;
1844 }
1845
1846 // Get the underlying X window
1847 WXWindow wxWindow::GetXWindow() const
1848 {
1849     Widget wMain = (Widget)GetMainWidget();
1850     if ( wMain )
1851         return (WXWindow) XtWindow(wMain);
1852     else
1853         return (WXWindow) 0;
1854 }
1855
1856 // Get the underlying X display
1857 WXDisplay *wxWindow::GetXDisplay() const
1858 {
1859     Widget wMain = (Widget)GetMainWidget();
1860     if ( wMain )
1861         return (WXDisplay*) XtDisplay(wMain);
1862     else
1863         return (WXDisplay*) NULL;
1864 }
1865
1866 WXWidget wxWindow::GetMainWidget() const
1867 {
1868     if (m_drawingArea)
1869         return m_drawingArea;
1870     else
1871         return m_mainWidget;
1872 }
1873
1874 WXWidget wxWindow::GetClientWidget() const
1875 {
1876     if (m_drawingArea != (WXWidget) 0)
1877         return m_drawingArea;
1878     else
1879         return GetMainWidget();
1880 }
1881
1882 WXWidget wxWindow::GetTopWidget() const
1883 {
1884     return GetMainWidget();
1885 }
1886
1887 WXWidget wxWindow::GetLabelWidget() const
1888 {
1889     return GetMainWidget();
1890 }
1891
1892 // ----------------------------------------------------------------------------
1893 // Motif callbacks
1894 // ----------------------------------------------------------------------------
1895
1896 // All widgets should have this as their resize proc.
1897 // OnSize sent to wxWindow via client data.
1898 void wxWidgetResizeProc(Widget w, XConfigureEvent *WXUNUSED(event),
1899                         String WXUNUSED(args)[], int *WXUNUSED(num_args))
1900 {
1901     wxWindow *win = wxGetWindowFromTable(w);
1902     if (!win)
1903         return;
1904
1905     if (win->PreResize())
1906     {
1907         int width, height;
1908         win->GetSize(&width, &height);
1909         wxSizeEvent sizeEvent(wxSize(width, height), win->GetId());
1910         sizeEvent.SetEventObject(win);
1911         win->GetEventHandler()->ProcessEvent(sizeEvent);
1912     }
1913 }
1914
1915 static void wxCanvasRepaintProc(Widget drawingArea,
1916                                 XtPointer clientData,
1917                                 XmDrawingAreaCallbackStruct * cbs)
1918 {
1919     if (!wxGetWindowFromTable(drawingArea))
1920         return;
1921
1922     XEvent * event = cbs->event;
1923     wxWindow * win = (wxWindow *) clientData;
1924
1925     switch (event->type)
1926     {
1927     case Expose:
1928         {
1929             win->AddUpdateRect(event->xexpose.x, event->xexpose.y,
1930                                event->xexpose.width, event->xexpose.height);
1931
1932             if (event -> xexpose.count == 0)
1933             {
1934                 win->DoPaint();
1935             }
1936             break;
1937         }
1938     }
1939 }
1940
1941 // Unable to deal with Enter/Leave without a separate EventHandler (Motif 1.1.4)
1942 static void wxCanvasEnterLeave(Widget drawingArea,
1943                                XtPointer WXUNUSED(clientData),
1944                                XCrossingEvent * event)
1945 {
1946     XmDrawingAreaCallbackStruct cbs;
1947     XEvent ev;
1948
1949     ((XCrossingEvent &) ev) = *event;
1950
1951     cbs.reason = XmCR_INPUT;
1952     cbs.event = &ev;
1953
1954     wxCanvasInputEvent(drawingArea, (XtPointer) NULL, &cbs);
1955 }
1956
1957 // Fix to make it work under Motif 1.0 (!)
1958 static void wxCanvasMotionEvent (Widget WXUNUSED(drawingArea),
1959                                  XButtonEvent *WXUNUSED(event))
1960 {
1961 #if XmVersion <= 1000
1962     XmDrawingAreaCallbackStruct cbs;
1963     XEvent ev;
1964
1965     ev = *((XEvent *) event);
1966     cbs.reason = XmCR_INPUT;
1967     cbs.event = &ev;
1968
1969     wxCanvasInputEvent (drawingArea, (XtPointer) NULL, &cbs);
1970 #endif // XmVersion <= 1000
1971 }
1972
1973 static void wxCanvasInputEvent(Widget drawingArea,
1974                                XtPointer WXUNUSED(data),
1975                                XmDrawingAreaCallbackStruct * cbs)
1976 {
1977     wxWindow *canvas = wxGetWindowFromTable(drawingArea);
1978     XEvent* xevent = cbs->event;
1979
1980     if (canvas==NULL)
1981         return;
1982
1983     if (cbs->reason != XmCR_INPUT)
1984         return;
1985
1986     switch (xevent->xany.type)
1987     {
1988     case EnterNotify:
1989     case LeaveNotify:
1990     case ButtonPress:
1991     case ButtonRelease:
1992     case MotionNotify:
1993         {
1994             wxMouseEvent wxevent(0);
1995             if (wxTranslateMouseEvent(wxevent, canvas, drawingArea, xevent))
1996             {
1997                 canvas->GetEventHandler()->ProcessEvent(wxevent);
1998             }
1999             break;
2000         }
2001     case KeyPress:
2002         {
2003             wxKeyEvent event (wxEVT_CHAR);
2004             if (wxTranslateKeyEvent (event, canvas, (Widget) 0, xevent))
2005             {
2006                 // Implement wxFrame::OnCharHook by checking ancestor.
2007                 wxWindow *parent = canvas;
2008                 while (parent && !parent->IsTopLevel())
2009                     parent = parent->GetParent();
2010
2011                 if (parent)
2012                 {
2013                     event.SetEventType(wxEVT_CHAR_HOOK);
2014                     if (parent->GetEventHandler()->ProcessEvent(event))
2015                         return;
2016                 }
2017
2018                 // For simplicity, OnKeyDown is the same as OnChar
2019                 // TODO: filter modifier key presses from OnChar
2020                 event.SetEventType(wxEVT_KEY_DOWN);
2021
2022                 // Only process OnChar if OnKeyDown didn't swallow it
2023                 if (!canvas->GetEventHandler()->ProcessEvent (event))
2024                 {
2025                     event.SetEventType(wxEVT_CHAR);
2026                     canvas->GetEventHandler()->ProcessEvent (event);
2027                 }
2028             }
2029             break;
2030         }
2031     case KeyRelease:
2032         {
2033             wxKeyEvent event (wxEVT_KEY_UP);
2034             if (wxTranslateKeyEvent (event, canvas, (Widget) 0, xevent))
2035             {
2036                 canvas->GetEventHandler()->ProcessEvent (event);
2037             }
2038             break;
2039         }
2040     case FocusIn:
2041         {
2042             if (xevent->xfocus.detail != NotifyPointer)
2043             {
2044                 wxFocusEvent event(wxEVT_SET_FOCUS, canvas->GetId());
2045                 event.SetEventObject(canvas);
2046                 canvas->GetEventHandler()->ProcessEvent(event);
2047             }
2048             break;
2049         }
2050     case FocusOut:
2051         {
2052             if (xevent->xfocus.detail != NotifyPointer)
2053             {
2054                 wxFocusEvent event(wxEVT_KILL_FOCUS, canvas->GetId());
2055                 event.SetEventObject(canvas);
2056                 canvas->GetEventHandler()->ProcessEvent(event);
2057             }
2058             break;
2059         }
2060     default:
2061         break;
2062     }
2063 }
2064
2065 static void wxPanelItemEventHandler(Widget    wid,
2066                                     XtPointer WXUNUSED(client_data),
2067                                     XEvent*   event,
2068                                     Boolean  *continueToDispatch)
2069 {
2070     // Widget can be a label or the actual widget.
2071
2072     wxWindow *window = wxGetWindowFromTable(wid);
2073     if (window)
2074     {
2075         wxMouseEvent wxevent(0);
2076         if (wxTranslateMouseEvent(wxevent, window, wid, event))
2077         {
2078             window->GetEventHandler()->ProcessEvent(wxevent);
2079         }
2080     }
2081
2082     // TODO: probably the key to allowing default behaviour to happen. Say we
2083     // set a m_doDefault flag to false at the start of this function. Then in
2084     // e.g. wxWindow::OnMouseEvent we can call Default() which sets this flag to
2085     // true, indicating that default processing can happen. Thus, behaviour can
2086     // appear to be overridden just by adding an event handler and not calling
2087     // wxWindow::OnWhatever. ALSO, maybe we can use this instead of the current
2088     // way of handling drawing area events, to simplify things.
2089     *continueToDispatch = True;
2090 }
2091
2092 static void wxScrollBarCallback(Widget scrollbar,
2093                                 XtPointer clientData,
2094                                 XmScrollBarCallbackStruct *cbs)
2095 {
2096     wxWindow *win = wxGetWindowFromTable(scrollbar);
2097     wxOrientation orientation = (wxOrientation)(int)clientData;
2098
2099     wxEventType eventType = wxEVT_NULL;
2100     switch (cbs->reason)
2101     {
2102     case XmCR_INCREMENT:
2103         {
2104             eventType = wxEVT_SCROLLWIN_LINEDOWN;
2105             break;
2106         }
2107     case XmCR_DECREMENT:
2108         {
2109             eventType = wxEVT_SCROLLWIN_LINEUP;
2110             break;
2111         }
2112     case XmCR_DRAG:
2113         {
2114             eventType = wxEVT_SCROLLWIN_THUMBTRACK;
2115             break;
2116         }
2117     case XmCR_VALUE_CHANGED:
2118         {
2119             eventType = wxEVT_SCROLLWIN_THUMBRELEASE;
2120             break;
2121         }
2122     case XmCR_PAGE_INCREMENT:
2123         {
2124             eventType = wxEVT_SCROLLWIN_PAGEDOWN;
2125             break;
2126         }
2127     case XmCR_PAGE_DECREMENT:
2128         {
2129             eventType = wxEVT_SCROLLWIN_PAGEUP;
2130             break;
2131         }
2132     case XmCR_TO_TOP:
2133         {
2134             eventType = wxEVT_SCROLLWIN_TOP;
2135             break;
2136         }
2137     case XmCR_TO_BOTTOM:
2138         {
2139             eventType = wxEVT_SCROLLWIN_BOTTOM;
2140             break;
2141         }
2142     default:
2143         {
2144             // Should never get here
2145             wxFAIL_MSG("Unknown scroll event.");
2146             break;
2147         }
2148     }
2149
2150     wxScrollWinEvent event(eventType,
2151                            cbs->value,
2152                            orientation);
2153     event.SetEventObject( win );
2154     win->GetEventHandler()->ProcessEvent(event);
2155 }
2156
2157 // For repainting arbitrary windows
2158 void wxUniversalRepaintProc(Widget w, XtPointer WXUNUSED(c_data), XEvent *event, char *)
2159 {
2160     Window window;
2161     Display *display;
2162
2163     wxWindow* win = wxGetWindowFromTable(w);
2164     if (!win)
2165         return;
2166
2167     switch(event -> type)
2168     {
2169     case Expose:
2170         {
2171             window = (Window) win -> GetXWindow();
2172             display = (Display *) win -> GetXDisplay();
2173
2174             win->AddUpdateRect(event->xexpose.x, event->xexpose.y,
2175                                event->xexpose.width, event->xexpose.height);
2176
2177             if (event -> xexpose.count == 0)
2178             {
2179                 win->DoPaint();
2180             }
2181
2182             break;
2183         }
2184     }
2185 }
2186
2187 // ----------------------------------------------------------------------------
2188 // TranslateXXXEvent() functions
2189 // ----------------------------------------------------------------------------
2190
2191 bool wxTranslateMouseEvent(wxMouseEvent& wxevent, wxWindow *win,
2192                            Widget widget, const XEvent *xevent)
2193 {
2194     switch (xevent->xany.type)
2195     {
2196         case EnterNotify:
2197         case LeaveNotify:
2198 #if 0
2199             fprintf(stderr, "Widget 0x%p <-> window %p (%s), %s\n",
2200                     (WXWidget)widget, win, win->GetClassInfo()->GetClassName(),
2201                     (xevent->xany.type == EnterNotify ? "ENTER" : "LEAVE"));
2202 #endif
2203         case ButtonPress:
2204         case ButtonRelease:
2205         case MotionNotify:
2206         {
2207             int eventx = xevent->xbutton.x, eventy = xevent->xbutton.y;
2208
2209             wxEventType eventType = wxEVT_NULL;
2210
2211             if (xevent->xany.type == LeaveNotify)
2212             {
2213                 eventType = wxEVT_LEAVE_WINDOW;
2214             }
2215             if (xevent->xany.type == EnterNotify)
2216             {
2217                 eventType = wxEVT_ENTER_WINDOW;
2218             }
2219             else if (xevent->xany.type == MotionNotify)
2220             {
2221                 eventType = wxEVT_MOTION;
2222
2223                 if (xevent->xmotion.is_hint == NotifyHint)
2224                 {
2225                     Window root, child;
2226                     int x_root, y_root;
2227                     unsigned int state;
2228                     Display *dpy = XtDisplay (widget);
2229
2230                     XQueryPointer (dpy, XtWindow (widget),
2231                         &root, &child,
2232                         &x_root, &y_root, &eventx, &eventy, &state);
2233                 }
2234             }
2235             else if (xevent->xany.type == ButtonPress)
2236             {
2237                 wxevent.SetTimestamp(xevent->xbutton.time);
2238                 int button = 0;
2239                 if (xevent->xbutton.button == Button1)
2240                 {
2241                     eventType = wxEVT_LEFT_DOWN;
2242                     button = 1;
2243                 }
2244                 else if (xevent->xbutton.button == Button2)
2245                 {
2246                     eventType = wxEVT_MIDDLE_DOWN;
2247                     button = 2;
2248                 }
2249                 else if (xevent->xbutton.button == Button3)
2250                 {
2251                     eventType = wxEVT_RIGHT_DOWN;
2252                     button = 3;
2253                 }
2254
2255                 // check for a double click
2256                 //
2257                 long dclickTime = XtGetMultiClickTime(xevent->xany.display);
2258                 long ts = wxevent.GetTimestamp();
2259
2260                 int buttonLast = win->GetLastClickedButton();
2261                 long lastTS = win->GetLastClickTime();
2262                 if ( buttonLast && buttonLast == button &&
2263                      (ts - lastTS) < dclickTime )
2264                 {
2265                     // I have a dclick
2266                     win->SetLastClick(0, ts);
2267                     if ( eventType == wxEVT_LEFT_DOWN )
2268                         eventType = wxEVT_LEFT_DCLICK;
2269                     else if ( eventType == wxEVT_MIDDLE_DOWN )
2270                         eventType = wxEVT_MIDDLE_DCLICK;
2271                     else if ( eventType == wxEVT_RIGHT_DOWN )
2272                         eventType = wxEVT_RIGHT_DCLICK;
2273                 }
2274                 else
2275                 {
2276                     // not fast enough or different button
2277                     win->SetLastClick(button, ts);
2278                 }
2279             }
2280             else if (xevent->xany.type == ButtonRelease)
2281             {
2282                 if (xevent->xbutton.button == Button1)
2283                 {
2284                     eventType = wxEVT_LEFT_UP;
2285                 }
2286                 else if (xevent->xbutton.button == Button2)
2287                 {
2288                     eventType = wxEVT_MIDDLE_UP;
2289                 }
2290                 else if (xevent->xbutton.button == Button3)
2291                 {
2292                     eventType = wxEVT_RIGHT_UP;
2293                 }
2294                 else
2295                     return false;
2296             }
2297             else
2298             {
2299                 return false;
2300             }
2301
2302             wxevent.SetEventType(eventType);
2303
2304             Position x1, y1;
2305             XtVaGetValues(widget, XmNx, &x1, XmNy, &y1, NULL);
2306
2307             int x2, y2;
2308             win->GetPosition(&x2, &y2);
2309
2310             // The button x/y must be translated to wxWidgets
2311             // window space - the widget might be a label or button,
2312             // within a form.
2313             int dx = 0;
2314             int dy = 0;
2315             if (widget != (Widget)win->GetMainWidget())
2316             {
2317                 dx = x1;
2318                 dy = y1;
2319             }
2320
2321             wxevent.m_x = eventx + dx;
2322             wxevent.m_y = eventy + dy;
2323
2324             wxevent.m_leftDown = ((eventType == wxEVT_LEFT_DOWN)
2325                 || (event_left_is_down (xevent)
2326                 && (eventType != wxEVT_LEFT_UP)));
2327             wxevent.m_middleDown = ((eventType == wxEVT_MIDDLE_DOWN)
2328                 || (event_middle_is_down (xevent)
2329                 && (eventType != wxEVT_MIDDLE_UP)));
2330             wxevent.m_rightDown = ((eventType == wxEVT_RIGHT_DOWN)
2331                 || (event_right_is_down (xevent)
2332                 && (eventType != wxEVT_RIGHT_UP)));
2333
2334             wxevent.m_shiftDown = xevent->xbutton.state & ShiftMask;
2335             wxevent.m_controlDown = xevent->xbutton.state & ControlMask;
2336             wxevent.m_altDown = xevent->xbutton.state & Mod3Mask;
2337             wxevent.m_metaDown = xevent->xbutton.state & Mod1Mask;
2338
2339             wxevent.SetId(win->GetId());
2340             wxevent.SetEventObject(win);
2341
2342             return true;
2343         }
2344     }
2345     return false;
2346 }
2347
2348 bool wxTranslateKeyEvent(wxKeyEvent& wxevent, wxWindow *win,
2349                          Widget WXUNUSED(widget), const XEvent *xevent)
2350 {
2351     switch (xevent->xany.type)
2352     {
2353     case KeyPress:
2354     case KeyRelease:
2355         {
2356             char buf[20];
2357
2358             KeySym keySym;
2359             (void) XLookupString((XKeyEvent *)xevent, buf, 20, &keySym, NULL);
2360             int id = wxCharCodeXToWX (keySym);
2361             // id may be WXK_xxx code - these are outside ASCII range, so we
2362             // can't just use toupper() on id
2363             if (id >= 'a' && id <= 'z')
2364                 id = toupper(id);
2365
2366             if (xevent->xkey.state & ShiftMask)
2367                 wxevent.m_shiftDown = true;
2368             if (xevent->xkey.state & ControlMask)
2369                 wxevent.m_controlDown = true;
2370             if (xevent->xkey.state & Mod3Mask)
2371                 wxevent.m_altDown = true;
2372             if (xevent->xkey.state & Mod1Mask)
2373                 wxevent.m_metaDown = true;
2374             wxevent.SetEventObject(win);
2375             wxevent.m_keyCode = id;
2376             wxevent.SetTimestamp(xevent->xkey.time);
2377
2378             wxevent.m_x = xevent->xbutton.x;
2379             wxevent.m_y = xevent->xbutton.y;
2380
2381             if (id > -1)
2382                 return true;
2383             else
2384                 return false;
2385             break;
2386         }
2387     default:
2388         break;
2389     }
2390     return false;
2391 }
2392
2393 // ----------------------------------------------------------------------------
2394 // Colour stuff
2395 // ----------------------------------------------------------------------------
2396
2397 #define YAllocColor XAllocColor
2398 XColor g_itemColors[5];
2399 int wxComputeColours (Display *display, wxColour * back, wxColour * fore)
2400 {
2401     int result;
2402     static XmColorProc colorProc;
2403
2404     result = wxNO_COLORS;
2405
2406     if (back)
2407     {
2408         g_itemColors[0].red = (((long) back->Red ()) << 8);
2409         g_itemColors[0].green = (((long) back->Green ()) << 8);
2410         g_itemColors[0].blue = (((long) back->Blue ()) << 8);
2411         g_itemColors[0].flags = DoRed | DoGreen | DoBlue;
2412         if (colorProc == (XmColorProc) NULL)
2413         {
2414             // Get a ptr to the actual function
2415             colorProc = XmSetColorCalculation ((XmColorProc) NULL);
2416             // And set it back to motif.
2417             XmSetColorCalculation (colorProc);
2418         }
2419         (*colorProc) (&g_itemColors[wxBACK_INDEX],
2420             &g_itemColors[wxFORE_INDEX],
2421             &g_itemColors[wxSELE_INDEX],
2422             &g_itemColors[wxTOPS_INDEX],
2423             &g_itemColors[wxBOTS_INDEX]);
2424         result = wxBACK_COLORS;
2425     }
2426     if (fore)
2427     {
2428         g_itemColors[wxFORE_INDEX].red = (((long) fore->Red ()) << 8);
2429         g_itemColors[wxFORE_INDEX].green = (((long) fore->Green ()) << 8);
2430         g_itemColors[wxFORE_INDEX].blue = (((long) fore->Blue ()) << 8);
2431         g_itemColors[wxFORE_INDEX].flags = DoRed | DoGreen | DoBlue;
2432         if (result == wxNO_COLORS)
2433             result = wxFORE_COLORS;
2434     }
2435
2436     Display *dpy = display;
2437     Colormap cmap = (Colormap) wxTheApp->GetMainColormap((WXDisplay*) dpy);
2438
2439     if (back)
2440     {
2441         /* 5 Colours to allocate */
2442         for (int i = 0; i < 5; i++)
2443             if (!YAllocColor (dpy, cmap, &g_itemColors[i]))
2444                 result = wxNO_COLORS;
2445     }
2446     else if (fore)
2447     {
2448         /* Only 1 colour to allocate */
2449         if (!YAllocColor (dpy, cmap, &g_itemColors[wxFORE_INDEX]))
2450             result = wxNO_COLORS;
2451     }
2452
2453     return result;
2454 }
2455
2456 // Changes the foreground and background colours to be derived from the current
2457 // background colour. To change the foreground colour, you must call
2458 // SetForegroundColour explicitly.
2459 void wxWindow::ChangeBackgroundColour()
2460 {
2461     WXWidget mainWidget = GetMainWidget();
2462     if ( mainWidget )
2463         wxDoChangeBackgroundColour(mainWidget, m_backgroundColour);
2464     if ( m_scrolledWindow && mainWidget != m_scrolledWindow )
2465         wxDoChangeForegroundColour(m_scrolledWindow, m_backgroundColour);
2466 }
2467
2468 void wxWindow::ChangeForegroundColour()
2469 {
2470     WXWidget mainWidget = GetMainWidget();
2471     if ( mainWidget )
2472         wxDoChangeForegroundColour(mainWidget, m_foregroundColour);
2473     if ( m_scrolledWindow && mainWidget != m_scrolledWindow )
2474         wxDoChangeForegroundColour(m_scrolledWindow, m_foregroundColour);
2475 }
2476
2477 bool wxWindow::SetBackgroundColour(const wxColour& col)
2478 {
2479     if ( !wxWindowBase::SetBackgroundColour(col) )
2480         return false;
2481
2482     ChangeBackgroundColour();
2483
2484     return true;
2485 }
2486
2487 bool wxWindow::SetForegroundColour(const wxColour& col)
2488 {
2489     if ( !wxWindowBase::SetForegroundColour(col) )
2490         return false;
2491
2492     ChangeForegroundColour();
2493
2494     return true;
2495 }
2496
2497 void wxWindow::ChangeFont(bool keepOriginalSize)
2498 {
2499     // Note that this causes the widget to be resized back
2500     // to its original size! We therefore have to set the size
2501     // back again. TODO: a better way in Motif?
2502     Widget w = (Widget) GetLabelWidget(); // Usually the main widget
2503     if (w && m_font.Ok())
2504     {
2505         int width, height, width1, height1;
2506         GetSize(& width, & height);
2507
2508         wxDoChangeFont( GetLabelWidget(), m_font );
2509
2510         GetSize(& width1, & height1);
2511         if (keepOriginalSize && (width != width1 || height != height1))
2512         {
2513             SetSize(-1, -1, width, height);
2514         }
2515     }
2516 }
2517
2518 // ----------------------------------------------------------------------------
2519 // global functions
2520 // ----------------------------------------------------------------------------
2521
2522 wxWindow *wxGetActiveWindow()
2523 {
2524     // TODO
2525     wxFAIL_MSG("Not implemented");
2526     return NULL;
2527 }
2528
2529 /* static */
2530 wxWindow *wxWindowBase::GetCapture()
2531 {
2532     return (wxWindow *)g_captureWindow;
2533 }
2534
2535
2536 // Find the wxWindow at the current mouse position, returning the mouse
2537 // position.
2538 wxWindow* wxFindWindowAtPointer(wxPoint& pt)
2539 {
2540     return wxFindWindowAtPoint(wxGetMousePosition());
2541 }
2542
2543 // Get the current mouse position.
2544 wxPoint wxGetMousePosition()
2545 {
2546     Display *display = wxGlobalDisplay();
2547     Window rootWindow = RootWindowOfScreen (DefaultScreenOfDisplay(display));
2548     Window rootReturn, childReturn;
2549     int rootX, rootY, winX, winY;
2550     unsigned int maskReturn;
2551
2552     XQueryPointer (display,
2553                    rootWindow,
2554                    &rootReturn,
2555                    &childReturn,
2556                    &rootX, &rootY, &winX, &winY, &maskReturn);
2557     return wxPoint(rootX, rootY);
2558 }
2559
2560
2561 // ----------------------------------------------------------------------------
2562 // wxNoOptimize: switch off size optimization
2563 // ----------------------------------------------------------------------------
2564
2565 int wxNoOptimize::ms_count = 0;
2566