src/motif/window.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        windows.cpp
   3 // Purpose:     wxWindow
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "window.h"
  22 #endif
  23
  24 #ifdef __VMS
  25 #define XtDisplay XTDISPLAY
  26 #define XtWindow XTWINDOW
  27 #define XtScreen XTSCREEN
  28 #endif
  29
  30 #include "wx/setup.h"
  31 #include "wx/menu.h"
  32 #include "wx/dc.h"
  33 #include "wx/dcclient.h"
  34 #include "wx/utils.h"
  35 #include "wx/app.h"
  36 #include "wx/panel.h"
  37 #include "wx/layout.h"
  38 #include "wx/dialog.h"
  39 #include "wx/listbox.h"
  40 #include "wx/button.h"
  41 #include "wx/settings.h"
  42 #include "wx/msgdlg.h"
  43 #include "wx/frame.h"
  44 #include "wx/scrolwin.h"
  45 #include "wx/module.h"
  46 #include "wx/menuitem.h"
  47 #include "wx/log.h"
  48
  49 #if  wxUSE_DRAG_AND_DROP
  50     #include "wx/dnd.h"
  51 #endif
  52
  53 // DoSetSizeIntr and CanvasSetSizeIntr
  54 // PROBLEM:
  55 // under Motif composite controls (such as wxCalendarCtrl or generic wxSpinCtrl
  56 // don't work and/or segfault because
  57 // 1) wxWindow::Create calls SetSize,
  58 //    which results in a call to DoSetSize much earlier than in the other ports
  59 // 2) if wxWindow::Create is called (wxControl::Create calls it)
  60 //    then DoSetSize is never called, causing layout problems in composite
  61 //    controls
  62 //
  63 // SOLUTION:
  64 // 1) don't call SetSize, DoSetSize, DoMoveWindow, DoGetPosition,
  65 //    DoSetPosition directly or indirectly from wxWindow::Create
  66 // 2) call DoMoveWindow from DoSetSize, allowing controls to override it,
  67 //    but make wxWindow::DoMoveWindow a no-op if it is called from
  68 //    an overridden DoMoveWindow (i.e. wxFoo::DoMoveWindow calls
  69 //    wxWindow::DoMoveWindow; this is to preserve the behaviour
  70 //    before this change
  71
  72 #ifdef __VMS__
  73 #pragma message disable nosimpint
  74 #endif
  75 #include <Xm/Xm.h>
  76
  77 #include <Xm/DrawingA.h>
  78 #include <Xm/ScrolledW.h>
  79 #include <Xm/ScrollBar.h>
  80 #include <Xm/Frame.h>
  81 #include <Xm/Label.h>
  82 #include <Xm/RowColumn.h>           // for XmMenuPosition
  83 #ifdef __VMS__
  84 #pragma message enable nosimpint
  85 #endif
  86
  87 #include "wx/motif/private.h"
  88
  89 #include <string.h>
  90
  91 // ----------------------------------------------------------------------------
  92 // constants
  93 // ----------------------------------------------------------------------------
  94
  95 static const int SCROLL_MARGIN = 4;
  96
  97 // ----------------------------------------------------------------------------
  98 // global variables for this module
  99 // ----------------------------------------------------------------------------
 100
 101 extern wxHashTable *wxWidgetHashTable;
 102 static wxWindow* g_captureWindow = NULL;
 103
 104
 105 // ----------------------------------------------------------------------------
 106 // private functions
 107 // ----------------------------------------------------------------------------
 108
 109 static void wxCanvasRepaintProc(Widget, XtPointer, XmDrawingAreaCallbackStruct * cbs);
 110 static void wxCanvasInputEvent(Widget drawingArea, XtPointer data, XmDrawingAreaCallbackStruct * cbs);
 111 static void wxCanvasMotionEvent(Widget, XButtonEvent * event);
 112 static void wxCanvasEnterLeave(Widget drawingArea, XtPointer clientData, XCrossingEvent * event);
 113 static void wxScrollBarCallback(Widget widget, XtPointer clientData,
 114                                 XmScrollBarCallbackStruct *cbs);
 115 static void wxPanelItemEventHandler(Widget    wid,
 116                                     XtPointer client_data,
 117                                     XEvent*   event,
 118                                     Boolean  *continueToDispatch);
 119
 120 // unused for now
 121 #if 0
 122
 123 // Helper function for 16-bit fonts
 124 static int str16len(const char *s)
 125 {
 126     int count = 0;
 127
 128     while (s[0] && s[1]) {
 129         count++;
 130         s += 2;
 131     }
 132
 133     return count;
 134 }
 135
 136 #endif // 0
 137
 138 // ----------------------------------------------------------------------------
 139 // macros
 140 // ----------------------------------------------------------------------------
 141
 142 #define event_left_is_down(x) ((x)->xbutton.state & Button1Mask)
 143 #define event_middle_is_down(x) ((x)->xbutton.state & Button2Mask)
 144 #define event_right_is_down(x) ((x)->xbutton.state & Button3Mask)
 145
 146 // ----------------------------------------------------------------------------
 147 // event tables
 148 // ----------------------------------------------------------------------------
 149
 150     IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxWindowBase)
 151
 152     BEGIN_EVENT_TABLE(wxWindow, wxWindowBase)
 153         EVT_SYS_COLOUR_CHANGED(wxWindow::OnSysColourChanged)
 154         EVT_IDLE(wxWindow::OnIdle)
 155     END_EVENT_TABLE()
 156
 157 // ============================================================================
 158 // implementation
 159 // ============================================================================
 160
 161 // ----------------------------------------------------------------------------
 162 // helper functions
 163 // ----------------------------------------------------------------------------
 164
 165 void wxWindow::UnmanageAndDestroy(WXWidget widget)
 166 {
 167     Widget w = (Widget)widget;
 168     if ( w )
 169     {
 170         XtUnmanageChild(w);
 171         XtDestroyWidget(w);
 172     }
 173 }
 174
 175 bool wxWindow::MapOrUnmap(WXWidget widget, bool map)
 176 {
 177     Widget w = (Widget)widget;
 178     if ( !w )
 179         return FALSE;
 180
 181     if ( map )
 182         XtMapWidget(w);
 183     else
 184         XtUnmapWidget(w);
 185
 186     return TRUE;
 187 }
 188
 189 // ----------------------------------------------------------------------------
 190 // constructors
 191 // ----------------------------------------------------------------------------
 192
 193 void wxWindow::Init()
 194 {
 195     // generic initializations first
 196     InitBase();
 197
 198     // Motif-specific
 199     m_needsRefresh = TRUE;
 200     m_mainWidget = (WXWidget) 0;
 201
 202     m_button1Pressed =
 203     m_button2Pressed =
 204     m_button3Pressed = FALSE;
 205
 206     m_winCaptured = FALSE;
 207
 208     m_isShown = TRUE;
 209     m_isBeingDeleted = FALSE;
 210
 211     m_hScrollBar =
 212     m_vScrollBar =
 213     m_borderWidget =
 214     m_scrolledWindow =
 215     m_drawingArea = (WXWidget) 0;
 216
 217     m_hScroll =
 218     m_vScroll = FALSE;
 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     m_canAddEventHandler = FALSE;
 233 }
 234
 235 // real construction (Init() must have been called before!)
 236 bool wxWindow::Create(wxWindow *parent, wxWindowID id,
 237                       const wxPoint& pos,
 238                       const wxSize& size,
 239                       long style,
 240                       const wxString& name)
 241 {
 242     wxCHECK_MSG( parent, FALSE, "can't create wxWindow without parent" );
 243
 244     CreateBase(parent, id, pos, size, style, wxDefaultValidator, name);
 245
 246     parent->AddChild(this);
 247
 248     m_backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 249     m_foregroundColour = *wxBLACK;
 250
 251     //// TODO: we should probably optimize by only creating a
 252     //// a drawing area if we have one or more scrollbars (wxVSCROLL/wxHSCROLL).
 253     //// But for now, let's simplify things by always creating the
 254     //// drawing area, since otherwise the translations are different.
 255
 256     // New translations for getting mouse motion feedback
 257     static const String translations =
 258 "<Btn1Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 259 <Btn2Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 260 <Btn3Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 261 <BtnMotion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 262 <Btn1Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 263 <Btn2Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 264 <Btn3Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 265 <Btn1Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 266 <Btn2Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 267 <Btn3Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 268 <Motion>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 269 <EnterWindow>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 270 <LeaveWindow>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 271 <Key>: DrawingAreaInput()";
 272
 273     XtActionsRec actions[1];
 274     actions[0].string = "wxCanvasMotionEvent";
 275     actions[0].proc = (XtActionProc) wxCanvasMotionEvent;
 276     XtAppAddActions ((XtAppContext) wxTheApp->GetAppContext(), actions, 1);
 277
 278     Widget parentWidget = (Widget) parent->GetClientWidget();
 279
 280     if (style & wxSIMPLE_BORDER)
 281     {
 282         m_borderWidget = (WXWidget)XtVaCreateManagedWidget
 283                                    (
 284                                     "canvasBorder",
 285                                     xmFrameWidgetClass, parentWidget,
 286                                     XmNshadowType, XmSHADOW_IN,
 287                                     XmNshadowThickness, 1,
 288                                     NULL
 289                                    );
 290     } else if (style & wxSUNKEN_BORDER)
 291     {
 292         m_borderWidget = (WXWidget)XtVaCreateManagedWidget
 293                                    (
 294                                     "canvasBorder",
 295                                     xmFrameWidgetClass, parentWidget,
 296                                     XmNshadowType, XmSHADOW_IN,
 297                                     NULL
 298                                    );
 299     } else if (style & wxRAISED_BORDER)
 300     {
 301         m_borderWidget = (WXWidget)XtVaCreateManagedWidget
 302                                    (
 303                                     "canvasBorder",
 304                                     xmFrameWidgetClass, parentWidget,
 305                                     XmNshadowType, XmSHADOW_OUT,
 306                                     NULL
 307                                    );
 308     }
 309
 310     m_scrolledWindow = (WXWidget)XtVaCreateManagedWidget
 311                                  (
 312                                   "scrolledWindow",
 313                                   xmScrolledWindowWidgetClass,
 314                                   m_borderWidget ? (Widget) m_borderWidget
 315                                                  : parentWidget,
 316                                   XmNresizePolicy, XmRESIZE_NONE,
 317                                   XmNspacing, 0,
 318                                   XmNscrollingPolicy, XmAPPLICATION_DEFINED,
 319                                   //XmNscrollBarDisplayPolicy, XmAS_NEEDED,
 320                                   NULL
 321                                  );
 322
 323     XtTranslations ptr = XtParseTranslationTable(translations);
 324     m_drawingArea = (WXWidget)XtVaCreateWidget
 325                               (
 326                                name,
 327                                xmDrawingAreaWidgetClass, (Widget) m_scrolledWindow,
 328                                XmNunitType, XmPIXELS,
 329                                // XmNresizePolicy, XmRESIZE_ANY,
 330                                XmNresizePolicy, XmRESIZE_NONE,
 331                                XmNmarginHeight, 0,
 332                                XmNmarginWidth, 0,
 333                                XmNtranslations, ptr,
 334                                NULL
 335                               );
 336     XtFree((char *) ptr);
 337
 338 #if 0
 339     if (GetWindowStyleFlag() & wxOVERRIDE_KEY_TRANSLATIONS)
 340     {
 341         ptr = XtParseTranslationTable ("<Key>: DrawingAreaInput()");
 342         XtOverrideTranslations ((Widget) m_drawingArea, ptr);
 343         XtFree ((char *) ptr);
 344     }
 345 #endif // 0
 346
 347     wxAddWindowToTable((Widget) m_drawingArea, this);
 348     wxAddWindowToTable((Widget) m_scrolledWindow, this);
 349
 350     // This order is very important in Motif 1.2.1
 351     XtRealizeWidget ((Widget) m_scrolledWindow);
 352     XtRealizeWidget ((Widget) m_drawingArea);
 353     XtManageChild ((Widget) m_drawingArea);
 354
 355     ptr = XtParseTranslationTable("<Configure>: resize()");
 356     XtOverrideTranslations((Widget) m_drawingArea, ptr);
 357     XtFree ((char *) ptr);
 358
 359     XtAddCallback ((Widget) m_drawingArea, XmNexposeCallback, (XtCallbackProc) wxCanvasRepaintProc, (XtPointer) this);
 360     XtAddCallback ((Widget) m_drawingArea, XmNinputCallback, (XtCallbackProc) wxCanvasInputEvent, (XtPointer) this);
 361
 362     // TODO?
 363 #if 0
 364     display = XtDisplay (scrolledWindow);
 365     xwindow = XtWindow (drawingArea);
 366 #endif // 0
 367
 368     XtAddEventHandler(
 369                       (Widget)m_drawingArea,
 370                        PointerMotionHintMask | EnterWindowMask |
 371                        LeaveWindowMask | FocusChangeMask,
 372                        False,
 373                        (XtEventHandler) wxCanvasEnterLeave,
 374                        (XtPointer) this
 375                      );
 376
 377     // Scrolled widget needs to have its colour changed or we get a little blue
 378     // square where the scrollbars abutt
 379     wxColour backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 380     DoChangeBackgroundColour(m_scrolledWindow, backgroundColour, TRUE);
 381     DoChangeBackgroundColour(m_drawingArea, backgroundColour, TRUE);
 382
 383     XmScrolledWindowSetAreas(
 384                              (Widget)m_scrolledWindow,
 385                              (Widget) 0, (Widget) 0,
 386                              (Widget) m_drawingArea);
 387
 388 #if 0
 389     if (m_hScrollBar)
 390         XtRealizeWidget ((Widget) m_hScrollBar);
 391     if (m_vScrollBar)
 392         XtRealizeWidget ((Widget) m_vScrollBar);
 393 #endif // 0
 394
 395     // Without this, the cursor may not be restored properly (e.g. in splitter
 396     // sample).
 397     SetCursor(*wxSTANDARD_CURSOR);
 398     SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
 399     DoSetSizeIntr(pos.x, pos.y, size.x,size.y, wxSIZE_AUTO, TRUE);
 400     return TRUE;
 401 }
 402
 403 // Destructor
 404 wxWindow::~wxWindow()
 405 {
 406     if (g_captureWindow == this)
 407         g_captureWindow = NULL;
 408
 409     m_isBeingDeleted = TRUE;
 410
 411     // Motif-specific actions first
 412     WXWidget wMain = GetMainWidget();
 413     if ( wMain )
 414     {
 415         // Removes event handlers
 416         DetachWidget(wMain);
 417     }
 418
 419     ClearUpdateRects();
 420
 421     if ( m_parent )
 422         m_parent->RemoveChild( this );
 423
 424     // If m_drawingArea, we're a fully-fledged window with drawing area,
 425     // scrollbars etc. (what wxCanvas used to be)
 426     if ( m_drawingArea )
 427     {
 428         // Destroy children before destroying self
 429         DestroyChildren();
 430
 431         if (m_backingPixmap)
 432             XFreePixmap (XtDisplay ((Widget) GetMainWidget()), (Pixmap) m_backingPixmap);
 433
 434         Widget w = (Widget) m_drawingArea;
 435         wxDeleteWindowFromTable(w);
 436
 437         if (w)
 438         {
 439             XtDestroyWidget(w);
 440             m_drawingArea = (WXWidget) 0;
 441         }
 442
 443         // Only if we're _really_ a canvas (not a dialog box/panel)
 444         if (m_scrolledWindow)
 445         {
 446             wxDeleteWindowFromTable((Widget) m_scrolledWindow);
 447         }
 448
 449         if (m_hScrollBar)
 450         {
 451             wxDeleteWindowFromTable((Widget) m_hScrollBar);
 452             XtUnmanageChild((Widget) m_hScrollBar);
 453         }
 454         if (m_vScrollBar)
 455         {
 456             wxDeleteWindowFromTable((Widget) m_vScrollBar);
 457             XtUnmanageChild((Widget) m_vScrollBar);
 458         }
 459
 460         if (m_hScrollBar)
 461             XtDestroyWidget((Widget) m_hScrollBar);
 462         if (m_vScrollBar)
 463             XtDestroyWidget((Widget) m_vScrollBar);
 464
 465         UnmanageAndDestroy(m_scrolledWindow);
 466
 467         if (m_borderWidget)
 468         {
 469             XtDestroyWidget ((Widget) m_borderWidget);
 470             m_borderWidget = (WXWidget) 0;
 471         }
 472     }
 473     else // Why wasn't this here before? JACS 8/3/2000
 474         DestroyChildren();
 475
 476
 477     // Destroy the window
 478     if (GetMainWidget())
 479     {
 480         // If this line (XtDestroyWidget) causes a crash, you may comment it out.
 481         // Child widgets will get destroyed automatically when a frame
 482         // or dialog is destroyed, but before that you may get some memory
 483         // leaks and potential layout problems if you delete and then add
 484         // child windows.
 485
 486         // GRG, Feb/2000: commented this out when adding support for
 487         //   wxSCROLL[WIN]_THUMBRELEASE events. Also it was reported
 488         //   that this call crashed wxMotif under OS/2, so it seems
 489         //   that leaving it out is the right thing to do.
 490         // SN, Feb/2000: newgrid/griddemo shows why it is needed :-(
 491         XtDestroyWidget((Widget) GetMainWidget());
 492         SetMainWidget((WXWidget) NULL);
 493     }
 494 }
 495
 496 // ----------------------------------------------------------------------------
 497 // scrollbar management
 498 // ----------------------------------------------------------------------------
 499
 500 // Helper function
 501 void wxWindow::CreateScrollbar(wxOrientation orientation)
 502 {
 503     wxCHECK_RET( m_drawingArea, "this window can't have scrollbars" );
 504
 505     XtVaSetValues((Widget) m_scrolledWindow, XmNresizePolicy, XmRESIZE_NONE, NULL);
 506
 507     // Add scrollbars if required
 508     if (orientation == wxHORIZONTAL)
 509     {
 510         Widget hScrollBar = XtVaCreateManagedWidget ("hsb",
 511             xmScrollBarWidgetClass, (Widget) m_scrolledWindow,
 512             XmNorientation, XmHORIZONTAL,
 513             NULL);
 514         XtAddCallback (hScrollBar, XmNvalueChangedCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 515         XtAddCallback (hScrollBar, XmNdragCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 516         XtAddCallback (hScrollBar, XmNincrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 517         XtAddCallback (hScrollBar, XmNdecrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 518         XtAddCallback (hScrollBar, XmNpageIncrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 519         XtAddCallback (hScrollBar, XmNpageDecrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 520         XtAddCallback (hScrollBar, XmNtoTopCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 521         XtAddCallback (hScrollBar, XmNtoBottomCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 522
 523         XtVaSetValues (hScrollBar,
 524             XmNincrement, 1,
 525             XmNvalue, 0,
 526             NULL);
 527
 528         m_hScrollBar = (WXWidget) hScrollBar;
 529
 530         wxColour backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 531         DoChangeBackgroundColour(m_hScrollBar, backgroundColour, TRUE);
 532
 533         XtRealizeWidget(hScrollBar);
 534
 535         XtVaSetValues((Widget) m_scrolledWindow,
 536             XmNhorizontalScrollBar, (Widget) m_hScrollBar,
 537             NULL);
 538
 539         m_hScroll = TRUE;
 540
 541         wxAddWindowToTable( hScrollBar, this );
 542     }
 543
 544     if (orientation == wxVERTICAL)
 545     {
 546         Widget vScrollBar = XtVaCreateManagedWidget ("vsb",
 547             xmScrollBarWidgetClass, (Widget) m_scrolledWindow,
 548             XmNorientation, XmVERTICAL,
 549             NULL);
 550         XtAddCallback (vScrollBar, XmNvalueChangedCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 551         XtAddCallback (vScrollBar, XmNdragCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 552         XtAddCallback (vScrollBar, XmNincrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 553         XtAddCallback (vScrollBar, XmNdecrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 554         XtAddCallback (vScrollBar, XmNpageIncrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 555         XtAddCallback (vScrollBar, XmNpageDecrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 556         XtAddCallback (vScrollBar, XmNtoTopCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 557         XtAddCallback (vScrollBar, XmNtoBottomCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 558
 559         XtVaSetValues (vScrollBar,
 560             XmNincrement, 1,
 561             XmNvalue, 0,
 562             NULL);
 563
 564         m_vScrollBar = (WXWidget) vScrollBar;
 565         wxColour backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 566         DoChangeBackgroundColour(m_vScrollBar, backgroundColour, TRUE);
 567
 568         XtRealizeWidget(vScrollBar);
 569
 570         XtVaSetValues((Widget) m_scrolledWindow,
 571             XmNverticalScrollBar, (Widget) m_vScrollBar,
 572             NULL);
 573
 574         m_vScroll = TRUE;
 575
 576         wxAddWindowToTable( vScrollBar, this );
 577     }
 578
 579     XtVaSetValues((Widget) m_scrolledWindow, XmNresizePolicy, XmRESIZE_ANY, NULL);
 580 }
 581
 582 void wxWindow::DestroyScrollbar(wxOrientation orientation)
 583 {
 584     wxCHECK_RET( m_drawingArea, "this window can't have scrollbars" );
 585
 586     XtVaSetValues((Widget) m_scrolledWindow, XmNresizePolicy, XmRESIZE_NONE, NULL);
 587     // Add scrollbars if required
 588     if (orientation == wxHORIZONTAL)
 589     {
 590         if (m_hScrollBar)
 591         {
 592             wxDeleteWindowFromTable((Widget)m_hScrollBar);
 593             XtDestroyWidget((Widget) m_hScrollBar);
 594         }
 595         m_hScrollBar = (WXWidget) 0;
 596         m_hScroll = FALSE;
 597
 598         XtVaSetValues((Widget) m_scrolledWindow,
 599             XmNhorizontalScrollBar, (Widget) 0,
 600             NULL);
 601
 602     }
 603
 604     if (orientation == wxVERTICAL)
 605     {
 606         if (m_vScrollBar)
 607         {
 608             wxDeleteWindowFromTable((Widget)m_vScrollBar);
 609             XtDestroyWidget((Widget) m_vScrollBar);
 610         }
 611         m_vScrollBar = (WXWidget) 0;
 612         m_vScroll = FALSE;
 613
 614         XtVaSetValues((Widget) m_scrolledWindow,
 615             XmNverticalScrollBar, (Widget) 0,
 616             NULL);
 617
 618     }
 619     XtVaSetValues((Widget) m_scrolledWindow, XmNresizePolicy, XmRESIZE_ANY, NULL);
 620 }
 621
 622 // ---------------------------------------------------------------------------
 623 // basic operations
 624 // ---------------------------------------------------------------------------
 625
 626 void wxWindow::SetFocus()
 627 {
 628     Widget wMain = (Widget) GetMainWidget();
 629     XmProcessTraversal(wMain, XmTRAVERSE_CURRENT);
 630     XmProcessTraversal((Widget) GetMainWidget(), XmTRAVERSE_CURRENT);
 631 }
 632
 633 // Get the window with the focus
 634 wxWindow *wxWindowBase::FindFocus()
 635 {
 636     // TODO Problems:
 637     // (1) Can there be multiple focussed widgets in an application?
 638     // In which case we need to find the top-level window that's
 639     // currently active.
 640     // (2) The widget with the focus may not be in the widget table
 641     // depending on which widgets I put in the table
 642     wxWindow *winFocus = (wxWindow *)NULL;
 643     for ( wxWindowList::Node *node = wxTopLevelWindows.GetFirst();
 644           node;
 645           node = node->GetNext() )
 646     {
 647         wxWindow *win = node->GetData();
 648
 649         Widget w = XmGetFocusWidget ((Widget) win->GetTopWidget());
 650
 651         if (w != (Widget) NULL)
 652         {
 653             winFocus = wxGetWindowFromTable(w);
 654             if ( winFocus )
 655                 break;
 656         }
 657     }
 658
 659     return winFocus;
 660 }
 661
 662 bool wxWindow::Enable(bool enable)
 663 {
 664     if ( !wxWindowBase::Enable(enable) )
 665         return FALSE;
 666
 667     Widget wMain = (Widget)GetMainWidget();
 668     if ( wMain )
 669     {
 670         XtSetSensitive(wMain, enable);
 671         XmUpdateDisplay(wMain);
 672     }
 673
 674     return TRUE;
 675 }
 676
 677 bool wxWindow::Show(bool show)
 678 {
 679     if ( !wxWindowBase::Show(show) )
 680         return FALSE;
 681
 682     if (m_borderWidget || m_scrolledWindow)
 683     {
 684         MapOrUnmap(m_drawingArea, show);
 685         MapOrUnmap(m_borderWidget ? m_borderWidget : m_scrolledWindow, show);
 686     }
 687     else
 688     {
 689         if ( !MapOrUnmap(GetTopWidget(), show) )
 690             MapOrUnmap(GetMainWidget(), show);
 691     }
 692
 693 #if 0
 694     Window xwin = (Window) GetXWindow();
 695     Display *xdisp = (Display*) GetXDisplay();
 696     if (show)
 697         XMapWindow(xdisp, xwin);
 698     else
 699         XUnmapWindow(xdisp, xwin);
 700 #endif
 701
 702     return TRUE;
 703 }
 704
 705 // Raise the window to the top of the Z order
 706 void wxWindow::Raise()
 707 {
 708     Widget wTop = (Widget) GetTopWidget();
 709     Window window = XtWindow(wTop);
 710     XRaiseWindow(XtDisplay(wTop), window);
 711 }
 712
 713 // Lower the window to the bottom of the Z order
 714 void wxWindow::Lower()
 715 {
 716     Widget wTop = (Widget) GetTopWidget();
 717     Window window = XtWindow(wTop);
 718     XLowerWindow(XtDisplay(wTop), window);
 719 }
 720
 721 void wxWindow::SetTitle(const wxString& title)
 722 {
 723     XtVaSetValues((Widget)GetMainWidget(), XmNtitle, title.c_str(), NULL);
 724 }
 725
 726 wxString wxWindow::GetTitle() const
 727 {
 728     char *title;
 729     XtVaGetValues((Widget)GetMainWidget(), XmNtitle, &title, NULL);
 730
 731     return wxString(title);
 732 }
 733
 734 void wxWindow::DoCaptureMouse()
 735 {
 736     g_captureWindow = this;
 737     if ( m_winCaptured )
 738         return;
 739
 740     Widget wMain = (Widget)GetMainWidget();
 741     if ( wMain )
 742         XtAddGrab(wMain, TRUE, FALSE);
 743
 744     m_winCaptured = TRUE;
 745 }
 746
 747 void wxWindow::DoReleaseMouse()
 748 {
 749     g_captureWindow = NULL;
 750     if ( !m_winCaptured )
 751         return;
 752
 753     Widget wMain = (Widget)GetMainWidget();
 754     if ( wMain )
 755         XtRemoveGrab(wMain);
 756
 757     m_winCaptured = FALSE;
 758 }
 759
 760 bool wxWindow::SetFont(const wxFont& font)
 761 {
 762     if ( !wxWindowBase::SetFont(font) )
 763     {
 764         // nothing to do
 765         return FALSE;
 766     }
 767
 768     ChangeFont();
 769
 770     return TRUE;
 771 }
 772
 773 bool wxWindow::SetCursor(const wxCursor& cursor)
 774 {
 775     if ( !wxWindowBase::SetCursor(cursor) )
 776     {
 777         // no change
 778         return FALSE;
 779     }
 780
 781     //    wxASSERT_MSG( m_cursor.Ok(),
 782     //                  wxT("cursor must be valid after call to the base version"));
 783     wxCursor* cursor2 = NULL;
 784     if (m_cursor.Ok())
 785         cursor2 = & m_cursor;
 786     else
 787         cursor2 = wxSTANDARD_CURSOR;
 788
 789     WXDisplay *dpy = GetXDisplay();
 790     WXCursor x_cursor = cursor2->GetXCursor(dpy);
 791
 792     Widget w = (Widget) GetMainWidget();
 793     Window win = XtWindow(w);
 794     XDefineCursor((Display*) dpy, win, (Cursor) x_cursor);
 795
 796     return TRUE;
 797 }
 798
 799 // Coordinates relative to the window
 800 void wxWindow::WarpPointer (int x, int y)
 801 {
 802     Widget wClient = (Widget)GetClientWidget();
 803
 804     XWarpPointer(XtDisplay(wClient), None, XtWindow(wClient), 0, 0, 0, 0, x, y);
 805 }
 806
 807 // ---------------------------------------------------------------------------
 808 // scrolling stuff
 809 // ---------------------------------------------------------------------------
 810
 811 int wxWindow::GetScrollPos(int orient) const
 812 {
 813     if (orient == wxHORIZONTAL)
 814         return m_scrollPosX;
 815     else
 816         return m_scrollPosY;
 817
 818 #if 0
 819     Widget scrollBar = (Widget) ((orient == wxHORIZONTAL) ? m_hScrollBar : m_vScrollBar);
 820     if (scrollBar)
 821     {
 822         int pos;
 823         XtVaGetValues(scrollBar, XmNvalue, &pos, NULL);
 824         return pos;
 825     }
 826     else
 827         return 0;
 828 #endif // 0
 829 }
 830
 831 // This now returns the whole range, not just the number of positions that we
 832 // can scroll.
 833 int wxWindow::GetScrollRange(int orient) const
 834 {
 835     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 836     wxCHECK_MSG( scrollBar, 0, "no such scrollbar" );
 837
 838     int range = 0;
 839     if (scrollBar)
 840         XtVaGetValues(scrollBar, XmNmaximum, &range, NULL);
 841     return range;
 842 }
 843
 844 int wxWindow::GetScrollThumb(int orient) const
 845 {
 846     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 847     wxCHECK_MSG( scrollBar, 0, "no such scrollbar" );
 848
 849     int thumb;
 850     XtVaGetValues(scrollBar, XmNsliderSize, &thumb, NULL);
 851     return thumb;
 852 }
 853
 854 void wxWindow::SetScrollPos(int orient, int pos, bool WXUNUSED(refresh))
 855 {
 856     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 857
 858     if ( scrollBar )
 859     {
 860         XtVaSetValues (scrollBar, XmNvalue, pos, NULL);
 861     }
 862
 863     SetInternalScrollPos((wxOrientation)orient, pos);
 864 }
 865
 866 // New function that will replace some of the above.
 867 void wxWindow::SetScrollbar(int orient, int pos, int thumbVisible,
 868                             int range, bool WXUNUSED(refresh))
 869 {
 870     int oldW, oldH;
 871     GetSize(& oldW, & oldH);
 872
 873     if (range == 0)
 874         range = 1;
 875     if (thumbVisible == 0)
 876         thumbVisible = 1;
 877
 878     if (thumbVisible > range)
 879         thumbVisible = range;
 880
 881     // Save the old state to see if it changed
 882     WXWidget oldScrollBar = GetScrollbar((wxOrientation)orient);
 883
 884     if (orient == wxHORIZONTAL)
 885     {
 886         if (thumbVisible == range)
 887         {
 888             if (m_hScrollBar)
 889                 DestroyScrollbar(wxHORIZONTAL);
 890         }
 891         else
 892         {
 893             if (!m_hScrollBar)
 894                 CreateScrollbar(wxHORIZONTAL);
 895         }
 896     }
 897     if (orient == wxVERTICAL)
 898     {
 899         if (thumbVisible == range)
 900         {
 901             if (m_vScrollBar)
 902                 DestroyScrollbar(wxVERTICAL);
 903         }
 904         else
 905         {
 906             if (!m_vScrollBar)
 907                 CreateScrollbar(wxVERTICAL);
 908         }
 909     }
 910     WXWidget newScrollBar =  GetScrollbar((wxOrientation)orient);
 911
 912     if (oldScrollBar != newScrollBar)
 913     {
 914         // This is important! Without it, scrollbars misbehave badly.
 915         XtUnrealizeWidget((Widget) m_scrolledWindow);
 916         XmScrolledWindowSetAreas ((Widget) m_scrolledWindow, (Widget) m_hScrollBar, (Widget) m_vScrollBar, (Widget) m_drawingArea);
 917         XtRealizeWidget((Widget) m_scrolledWindow);
 918         XtManageChild((Widget) m_scrolledWindow);
 919     }
 920
 921     if (newScrollBar)
 922     {
 923         XtVaSetValues((Widget) newScrollBar,
 924         XmNvalue, pos,
 925         XmNminimum, 0,
 926         XmNmaximum, range,
 927         XmNsliderSize, thumbVisible,
 928         NULL);
 929     }
 930
 931     SetInternalScrollPos((wxOrientation)orient, pos);
 932
 933     int newW, newH;
 934     GetSize(& newW, & newH);
 935
 936     // Adjusting scrollbars can resize the canvas accidentally
 937     if (newW != oldW || newH != oldH)
 938         SetSize(-1, -1, oldW, oldH);
 939 }
 940
 941 // Does a physical scroll
 942 void wxWindow::ScrollWindow(int dx, int dy, const wxRect *rect)
 943 {
 944     int x, y, w, h;
 945     if (rect)
 946     {
 947         // Use specified rectangle
 948         x = rect->x; y = rect->y; w = rect->width; h = rect->height;
 949     }
 950     else
 951     {
 952         // Use whole client area
 953         x = 0; y = 0;
 954         GetClientSize(& w, & h);
 955     }
 956
 957     wxNode *cnode = m_children.First();
 958     while (cnode)
 959     {
 960         wxWindow *child = (wxWindow*) cnode->Data();
 961         int sx = 0;
 962         int sy = 0;
 963         child->GetSize( &sx, &sy );
 964         wxPoint pos( child->GetPosition() );
 965         child->SetSize( pos.x + dx, pos.y + dy, sx, sy, wxSIZE_ALLOW_MINUS_ONE );
 966         cnode = cnode->Next();
 967     }
 968
 969     int x1 = (dx >= 0) ? x : x - dx;
 970     int y1 = (dy >= 0) ? y : y - dy;
 971     int w1 = w - abs(dx);
 972     int h1 = h - abs(dy);
 973     int x2 = (dx >= 0) ? x + dx : x;
 974     int y2 = (dy >= 0) ? y + dy : y;
 975
 976     wxClientDC dc(this);
 977
 978     dc.SetLogicalFunction (wxCOPY);
 979
 980     Widget widget = (Widget) GetMainWidget();
 981     Window window = XtWindow(widget);
 982     Display* display = XtDisplay(widget);
 983
 984     XCopyArea(display, window, window, (GC) dc.GetGC(),
 985               x1, y1, w1, h1, x2, y2);
 986
 987     dc.SetAutoSetting(TRUE);
 988     wxBrush brush(GetBackgroundColour(), wxSOLID);
 989     dc.SetBrush(brush); // FIXME: needed?
 990
 991     // We'll add rectangles to the list of update rectangles according to which
 992     // bits we've exposed.
 993     wxList updateRects;
 994
 995     if (dx > 0)
 996     {
 997         wxRect *rect = new wxRect;
 998         rect->x = x;
 999         rect->y = y;
1000         rect->width = dx;
1001         rect->height = h;
1002
1003         XFillRectangle(display, window,
1004             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
1005
1006         rect->x = rect->x;
1007         rect->y = rect->y;
1008         rect->width = rect->width;
1009         rect->height = rect->height;
1010
1011         updateRects.Append((wxObject*) rect);
1012     }
1013     else if (dx < 0)
1014     {
1015         wxRect *rect = new wxRect;
1016
1017         rect->x = x + w + dx;
1018         rect->y = y;
1019         rect->width = -dx;
1020         rect->height = h;
1021
1022         XFillRectangle(display, window,
1023             (GC) dc.GetGC(), rect->x, rect->y, rect->width,
1024             rect->height);
1025
1026         rect->x = rect->x;
1027         rect->y = rect->y;
1028         rect->width = rect->width;
1029         rect->height = rect->height;
1030
1031         updateRects.Append((wxObject*) rect);
1032     }
1033     if (dy > 0)
1034     {
1035         wxRect *rect = new wxRect;
1036
1037         rect->x = x;
1038         rect->y = y;
1039         rect->width = w;
1040         rect->height = dy;
1041
1042         XFillRectangle(display, window,
1043             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
1044
1045         rect->x = rect->x;
1046         rect->y = rect->y;
1047         rect->width = rect->width;
1048         rect->height = rect->height;
1049
1050         updateRects.Append((wxObject*) rect);
1051     }
1052     else if (dy < 0)
1053     {
1054         wxRect *rect = new wxRect;
1055
1056         rect->x = x;
1057         rect->y = y + h + dy;
1058         rect->width = w;
1059         rect->height = -dy;
1060
1061         XFillRectangle(display, window,
1062             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
1063
1064         rect->x = rect->x;
1065         rect->y = rect->y;
1066         rect->width = rect->width;
1067         rect->height = rect->height;
1068
1069         updateRects.Append((wxObject*) rect);
1070     }
1071     dc.SetBrush(wxNullBrush);
1072
1073     // Now send expose events
1074
1075     wxNode* node = updateRects.First();
1076     while (node)
1077     {
1078         wxRect* rect = (wxRect*) node->Data();
1079         XExposeEvent event;
1080
1081         event.type = Expose;
1082         event.display = display;
1083         event.send_event = True;
1084         event.window = window;
1085
1086         event.x = rect->x;
1087         event.y = rect->y;
1088         event.width = rect->width;
1089         event.height = rect->height;
1090
1091         event.count = 0;
1092
1093         XSendEvent(display, window, False, ExposureMask, (XEvent *)&event);
1094
1095         node = node->Next();
1096
1097     }
1098
1099     // Delete the update rects
1100     node = updateRects.First();
1101     while (node)
1102     {
1103         wxRect* rect = (wxRect*) node->Data();
1104         delete rect;
1105         node = node->Next();
1106     }
1107
1108     XmUpdateDisplay((Widget) GetMainWidget());
1109 }
1110
1111 // ---------------------------------------------------------------------------
1112 // drag and drop
1113 // ---------------------------------------------------------------------------
1114
1115 #if wxUSE_DRAG_AND_DROP
1116
1117 void wxWindow::SetDropTarget(wxDropTarget * WXUNUSED(pDropTarget))
1118 {
1119     // TODO
1120 }
1121
1122 #endif
1123
1124 // Old style file-manager drag&drop
1125 void wxWindow::DragAcceptFiles(bool WXUNUSED(accept))
1126 {
1127     // TODO
1128 }
1129
1130 // ----------------------------------------------------------------------------
1131 // tooltips
1132 // ----------------------------------------------------------------------------
1133
1134 #if wxUSE_TOOLTIPS
1135
1136 void wxWindow::DoSetToolTip(wxToolTip * WXUNUSED(tooltip))
1137 {
1138     // TODO
1139 }
1140
1141 #endif // wxUSE_TOOLTIPS
1142
1143 // ----------------------------------------------------------------------------
1144 // popup menus
1145 // ----------------------------------------------------------------------------
1146
1147 bool wxWindow::DoPopupMenu(wxMenu *menu, int x, int y)
1148 {
1149     Widget widget = (Widget) GetMainWidget();
1150
1151     /* The menuId field seems to be usused, so we'll use it to
1152     indicate whether a menu is popped up or not:
1153     0: Not currently created as a popup
1154     -1: Created as a popup, but not active
1155     1: Active popup.
1156     */
1157
1158     if (menu->GetParent() && (menu->GetId() != -1))
1159         return FALSE;
1160
1161     if (menu->GetMainWidget()) {
1162         menu->DestroyMenu(TRUE);
1163     }
1164
1165     menu->SetId(1); /* Mark as popped-up */
1166     menu->CreateMenu(NULL, widget, menu);
1167     menu->SetInvokingWindow(this);
1168
1169     menu->UpdateUI();
1170
1171     //  menu->SetParent(parent);
1172     //  parent->children->Append(menu);  // Store menu for later deletion
1173
1174     Widget menuWidget = (Widget) menu->GetMainWidget();
1175
1176     int rootX = 0;
1177     int rootY = 0;
1178
1179     int deviceX = x;
1180     int deviceY = y;
1181     /*
1182     if (this->IsKindOf(CLASSINFO(wxCanvas)))
1183     {
1184     wxCanvas *canvas = (wxCanvas *) this;
1185     deviceX = canvas->GetDC ()->LogicalToDeviceX (x);
1186     deviceY = canvas->GetDC ()->LogicalToDeviceY (y);
1187     }
1188     */
1189
1190     Display *display = XtDisplay (widget);
1191     Window rootWindow = RootWindowOfScreen (XtScreen((Widget)widget));
1192     Window thisWindow = XtWindow (widget);
1193     Window childWindow;
1194     XTranslateCoordinates (display, thisWindow, rootWindow, (int) deviceX, (int) deviceY,
1195         &rootX, &rootY, &childWindow);
1196
1197     XButtonPressedEvent event;
1198     event.type = ButtonPress;
1199     event.button = 1;
1200
1201     event.x = deviceX;
1202     event.y = deviceY;
1203
1204     event.x_root = rootX;
1205     event.y_root = rootY;
1206
1207     XmMenuPosition (menuWidget, &event);
1208     XtManageChild (menuWidget);
1209
1210     XEvent x_event;
1211     // The ID of a pop-up menu is 1 when active, and is set to 0 by the
1212     // idle-time destroy routine.
1213     // Waiting until this ID changes causes this function to block until
1214     // the menu has been dismissed and the widgets cleaned up.
1215     // In other words, once this routine returns, it is safe to delete
1216     // the menu object.
1217     // Ian Brown <ian.brown@printsoft.de>
1218     while (menu->GetId() == 1)
1219     {
1220         XtAppNextEvent( (XtAppContext) wxTheApp->GetAppContext(), &x_event);
1221
1222         wxTheApp->ProcessXEvent((WXEvent*) & x_event);
1223
1224         if (XtAppPending( (XtAppContext) wxTheApp->GetAppContext() ) == 0)
1225         {
1226             if (!wxTheApp->ProcessIdle())
1227             {
1228 #if wxUSE_THREADS
1229                 // leave the main loop to give other threads a chance to
1230                 // perform their GUI work
1231                 wxMutexGuiLeave();
1232                 wxUsleep(20);
1233                 wxMutexGuiEnter();
1234 #endif
1235             }
1236         }
1237     }
1238     return TRUE;
1239 }
1240
1241 // ---------------------------------------------------------------------------
1242 // moving and resizing
1243 // ---------------------------------------------------------------------------
1244
1245 bool wxWindow::PreResize()
1246 {
1247     return TRUE;
1248 }
1249
1250 // Get total size
1251 void wxWindow::DoGetSize(int *x, int *y) const
1252 {
1253     if (m_drawingArea)
1254     {
1255         CanvasGetSize(x, y);
1256         return;
1257     }
1258
1259     Widget widget = (Widget) GetTopWidget();
1260     Dimension xx, yy;
1261     XtVaGetValues(widget, XmNwidth, &xx, XmNheight, &yy, NULL);
1262     if(x) *x = xx; if(y) *y = yy;
1263 }
1264
1265 void wxWindow::DoGetPosition(int *x, int *y) const
1266 {
1267     if (m_drawingArea)
1268     {
1269         CanvasGetPosition(x, y);
1270         return;
1271     }
1272     Widget widget = (Widget) GetTopWidget();
1273     Position xx, yy;
1274     XtVaGetValues(widget, XmNx, &xx, XmNy, &yy, NULL);
1275
1276     // We may be faking the client origin. So a window that's really at (0, 30)
1277     // may appear (to wxWin apps) to be at (0, 0).
1278     if (GetParent())
1279     {
1280         wxPoint pt(GetParent()->GetClientAreaOrigin());
1281         xx -= pt.x;
1282         yy -= pt.y;
1283     }
1284
1285     if(x) *x = xx; if(y) *y = yy;
1286 }
1287
1288 void wxWindow::DoScreenToClient(int *x, int *y) const
1289 {
1290     Widget widget = (Widget) GetClientWidget();
1291     Display *display = XtDisplay((Widget) GetMainWidget());
1292     Window rootWindow = RootWindowOfScreen(XtScreen(widget));
1293     Window thisWindow = XtWindow(widget);
1294
1295     Window childWindow;
1296     int xx = *x;
1297     int yy = *y;
1298     XTranslateCoordinates(display, rootWindow, thisWindow, xx, yy, x, y, &childWindow);
1299 }
1300
1301 void wxWindow::DoClientToScreen(int *x, int *y) const
1302 {
1303     Widget widget = (Widget) GetClientWidget();
1304     Display *display = XtDisplay(widget);
1305     Window rootWindow = RootWindowOfScreen(XtScreen(widget));
1306     Window thisWindow = XtWindow(widget);
1307
1308     Window childWindow;
1309     int xx = *x;
1310     int yy = *y;
1311     XTranslateCoordinates(display, thisWindow, rootWindow, xx, yy, x, y, &childWindow);
1312 }
1313
1314
1315 // Get size *available for subwindows* i.e. excluding menu bar etc.
1316 void wxWindow::DoGetClientSize(int *x, int *y) const
1317 {
1318     Widget widget = (Widget) GetClientWidget();
1319     Dimension xx, yy;
1320     XtVaGetValues(widget, XmNwidth, &xx, XmNheight, &yy, NULL);
1321     if(x) *x = xx; if(y) *y = yy;
1322 }
1323
1324 void wxWindow::DoSetSize(int x, int y, int width, int height, int sizeFlags)
1325 {
1326     DoSetSizeIntr(x, y, width, height, sizeFlags, FALSE);
1327 }
1328
1329 void wxWindow::DoSetSizeIntr(int x, int y, int width, int height,
1330                              int sizeFlags, bool fromCtor)
1331 {
1332     // A bit of optimization to help sort out the flickers.
1333     int oldX = -1, oldY = -1, oldW = -1, oldH = -1;
1334     if( !fromCtor )
1335     {
1336         GetSize(& oldW, & oldH);
1337         GetPosition(& oldX, & oldY);
1338     }
1339
1340     if ( !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
1341     {
1342         if ( x == -1 )
1343             x = oldX;
1344         if ( y == -1 )
1345             y = oldY;
1346     }
1347
1348     if ( width == -1 )
1349         width = oldW;
1350     if ( height == -1 )
1351         height = oldH;
1352
1353     bool nothingChanged = (x == oldX) && (y == oldY) &&
1354                           (width == oldW) && (height == oldH);
1355
1356     if (!wxNoOptimize::CanOptimize())
1357     {
1358         nothingChanged = FALSE;
1359     }
1360
1361     if ( !nothingChanged )
1362     {
1363         if (m_drawingArea)
1364         {
1365             CanvasSetSizeIntr(x, y, width, height, sizeFlags, fromCtor);
1366             if( !fromCtor ) DoMoveWindow(x, y, width, height);
1367             return;
1368         }
1369
1370         Widget widget = (Widget) GetTopWidget();
1371         if (!widget)
1372             return;
1373
1374         bool managed = XtIsManaged( widget );
1375         if (managed)
1376             XtUnmanageChild(widget);
1377
1378         int xx = x;
1379         int yy = y;
1380         AdjustForParentClientOrigin(xx, yy, sizeFlags);
1381
1382         DoMoveWindow(xx, yy, width, height);
1383
1384         if (managed)
1385             XtManageChild(widget);
1386
1387         // How about this bit. Maybe we don't need to generate size events
1388         // all the time -- they'll be generated when the window is sized anyway.
1389 #if 0
1390         wxSizeEvent sizeEvent(wxSize(width, height), GetId());
1391         sizeEvent.SetEventObject(this);
1392
1393         GetEventHandler()->ProcessEvent(sizeEvent);
1394 #endif // 0
1395     }
1396 }
1397
1398 void wxWindow::DoSetClientSize(int width, int height)
1399 {
1400     if (m_drawingArea)
1401     {
1402         CanvasSetClientSize(width, height);
1403         return;
1404     }
1405
1406     Widget widget = (Widget) GetTopWidget();
1407
1408     if (width > -1)
1409         XtVaSetValues(widget, XmNwidth, width, NULL);
1410     if (height > -1)
1411         XtVaSetValues(widget, XmNheight, height, NULL);
1412
1413     wxSizeEvent sizeEvent(wxSize(width, height), GetId());
1414     sizeEvent.SetEventObject(this);
1415
1416     GetEventHandler()->ProcessEvent(sizeEvent);
1417 }
1418
1419 // For implementation purposes - sometimes decorations make the client area
1420 // smaller
1421 wxPoint wxWindow::GetClientAreaOrigin() const
1422 {
1423     return wxPoint(0, 0);
1424 }
1425
1426 void wxWindow::SetSizeHints(int minW, int minH, int maxW, int maxH, int incW, int incH)
1427 {
1428     m_minWidth = minW;
1429     m_minHeight = minH;
1430     m_maxWidth = maxW;
1431     m_maxHeight = maxH;
1432
1433     wxFrame *frame = wxDynamicCast(this, wxFrame);
1434     if ( !frame )
1435     {
1436         // TODO what about dialogs?
1437         return;
1438     }
1439
1440     Widget widget = (Widget) frame->GetShellWidget();
1441
1442     if (minW > -1)
1443         XtVaSetValues(widget, XmNminWidth, minW, NULL);
1444     if (minH > -1)
1445         XtVaSetValues(widget, XmNminHeight, minH, NULL);
1446     if (maxW > -1)
1447         XtVaSetValues(widget, XmNmaxWidth, maxW, NULL);
1448     if (maxH > -1)
1449         XtVaSetValues(widget, XmNmaxHeight, maxH, NULL);
1450     if (incW > -1)
1451         XtVaSetValues(widget, XmNwidthInc, incW, NULL);
1452     if (incH > -1)
1453         XtVaSetValues(widget, XmNheightInc, incH, NULL);
1454 }
1455
1456 void wxWindow::DoMoveWindow(int x, int y, int width, int height)
1457 {
1458     // see the top of the file, near DoSetSizeIntr
1459     if (m_drawingArea)
1460         return;
1461
1462     if (width == 0)
1463         width = 1;
1464     if (height == 0)
1465         height = 1;
1466
1467     XtVaSetValues((Widget)GetTopWidget(),
1468                   XmNx, x,
1469                   XmNy, y,
1470                   XmNwidth, width,
1471                   XmNheight, height,
1472                   NULL);
1473 }
1474
1475 // ---------------------------------------------------------------------------
1476 // text metrics
1477 // ---------------------------------------------------------------------------
1478
1479 int wxWindow::GetCharHeight() const
1480 {
1481     wxCHECK_MSG( m_font.Ok(), 0, "valid window font needed" );
1482
1483     WXFontStructPtr pFontStruct = m_font.GetFontStruct(1.0, GetXDisplay());
1484
1485     int direction, ascent, descent;
1486     XCharStruct overall;
1487     XTextExtents ((XFontStruct*) pFontStruct, "x", 1, &direction, &ascent,
1488         &descent, &overall);
1489
1490     //  return (overall.ascent + overall.descent);
1491     return (ascent + descent);
1492 }
1493
1494 int wxWindow::GetCharWidth() const
1495 {
1496     wxCHECK_MSG( m_font.Ok(), 0, "valid window font needed" );
1497
1498     WXFontStructPtr pFontStruct = m_font.GetFontStruct(1.0, GetXDisplay());
1499
1500     int direction, ascent, descent;
1501     XCharStruct overall;
1502     XTextExtents ((XFontStruct*) pFontStruct, "x", 1, &direction, &ascent,
1503         &descent, &overall);
1504
1505     return overall.width;
1506 }
1507
1508 void wxWindow::GetTextExtent(const wxString& string,
1509                              int *x, int *y,
1510                              int *descent, int *externalLeading,
1511                              const wxFont *theFont) const
1512 {
1513     wxFont *fontToUse = (wxFont *)theFont;
1514     if (!fontToUse)
1515         fontToUse = (wxFont *) & m_font;
1516
1517     wxCHECK_RET( fontToUse->Ok(), "valid window font needed" );
1518
1519     WXFontStructPtr pFontStruct = fontToUse->GetFontStruct(1.0, GetXDisplay());
1520
1521     int direction, ascent, descent2;
1522     XCharStruct overall;
1523     int slen = string.Len();
1524
1525 #if 0
1526     if (use16)
1527         XTextExtents16((XFontStruct*) pFontStruct, (XChar2b *) (char*) (const char*) string, slen, &direction,
1528         &ascent, &descent2, &overall);
1529 #endif
1530
1531     XTextExtents((XFontStruct*) pFontStruct, string, slen,
1532                  &direction, &ascent, &descent2, &overall);
1533
1534     if ( x )
1535         *x = (overall.width);
1536     if ( y )
1537         *y = (ascent + descent2);
1538     if (descent)
1539         *descent = descent2;
1540     if (externalLeading)
1541         *externalLeading = 0;
1542
1543 }
1544
1545 // ----------------------------------------------------------------------------
1546 // painting
1547 // ----------------------------------------------------------------------------
1548
1549 void wxWindow::Refresh(bool eraseBack, const wxRect *rect)
1550 {
1551     m_needsRefresh = TRUE;
1552     Display *display = XtDisplay((Widget) GetMainWidget());
1553     Window thisWindow = XtWindow((Widget) GetMainWidget());
1554
1555     XExposeEvent dummyEvent;
1556     int width, height;
1557     GetSize(&width, &height);
1558
1559     dummyEvent.type = Expose;
1560     dummyEvent.display = display;
1561     dummyEvent.send_event = True;
1562     dummyEvent.window = thisWindow;
1563     if (rect)
1564     {
1565         dummyEvent.x = rect->x;
1566         dummyEvent.y = rect->y;
1567         dummyEvent.width = rect->width;
1568         dummyEvent.height = rect->height;
1569     }
1570     else
1571     {
1572         dummyEvent.x = 0;
1573         dummyEvent.y = 0;
1574         dummyEvent.width = width;
1575         dummyEvent.height = height;
1576     }
1577     dummyEvent.count = 0;
1578
1579     if (eraseBack)
1580     {
1581         wxClientDC dc(this);
1582         wxBrush backgroundBrush(GetBackgroundColour(), wxSOLID);
1583         dc.SetBackground(backgroundBrush);
1584         if (rect)
1585             dc.Clear(*rect);
1586         else
1587             dc.Clear();
1588     }
1589
1590     XSendEvent(display, thisWindow, False, ExposureMask, (XEvent *)&dummyEvent);
1591 }
1592
1593 void wxWindow::Clear()
1594 {
1595     wxClientDC dc(this);
1596     wxBrush brush(GetBackgroundColour(), wxSOLID);
1597     dc.SetBackground(brush);
1598     dc.Clear();
1599 }
1600
1601 void wxWindow::ClearUpdateRects()
1602 {
1603     wxRectList::Node* node = m_updateRects.GetFirst();
1604     while (node)
1605     {
1606         wxRect* rect = node->GetData();
1607         delete rect;
1608         node = node->GetNext();
1609     }
1610
1611     m_updateRects.Clear();
1612 }
1613
1614 void wxWindow::DoPaint()
1615 {
1616     //TODO : make a temporary gc so we can do the XCopyArea below
1617     if (m_backingPixmap && !m_needsRefresh)
1618     {
1619       wxPaintDC dc(this);
1620
1621       GC tempGC = (GC) dc.GetBackingGC();
1622
1623       Widget widget = (Widget) GetMainWidget();
1624
1625       int scrollPosX = 0;
1626       int scrollPosY = 0;
1627
1628       // We have to test whether it's a wxScrolledWindow (hack!) because
1629       // otherwise we don't know how many pixels have been scrolled. We might
1630       // solve this in the future by defining virtual wxWindow functions to get
1631       // the scroll position in pixels. Or, each kind of scrolled window has to
1632       // implement backing stores itself, using generic wxWindows code.
1633       wxScrolledWindow* scrolledWindow = wxDynamicCast(this, wxScrolledWindow);
1634       if ( scrolledWindow )
1635       {
1636           int x, y;
1637           scrolledWindow->CalcScrolledPosition(0, 0, &x, &y);
1638
1639           scrollPosX = - x;
1640           scrollPosY = - y;
1641       }
1642
1643       // TODO: This could be optimized further by only copying the areas in the
1644       //       current update region.
1645
1646       // Only blit the part visible in the client area. The backing pixmap
1647       // always starts at 0, 0 but we may be looking at only a portion of it.
1648       wxSize clientArea = GetClientSize();
1649       int toBlitX = m_pixmapWidth - scrollPosX;
1650       int toBlitY = m_pixmapHeight - scrollPosY;
1651
1652       // Copy whichever is samller, the amount of pixmap we have to copy,
1653       // or the size of the client area.
1654       toBlitX = wxMin(toBlitX, clientArea.x);
1655       toBlitY = wxMin(toBlitY, clientArea.y);
1656
1657       // Make sure we're not negative
1658       toBlitX = wxMax(0, toBlitX);
1659       toBlitY = wxMax(0, toBlitY);
1660
1661       XCopyArea
1662       (
1663        XtDisplay(widget),
1664        (Pixmap) m_backingPixmap,
1665        XtWindow (widget),
1666        tempGC,
1667        scrollPosX, scrollPosY, // Start at the scroll position
1668        toBlitX, toBlitY,       // How much of the pixmap to copy
1669        0, 0                    // Destination
1670       );
1671     }
1672     else
1673     {
1674         // Set an erase event first
1675         wxEraseEvent eraseEvent(GetId());
1676         eraseEvent.SetEventObject(this);
1677         GetEventHandler()->ProcessEvent(eraseEvent);
1678
1679         wxPaintEvent event(GetId());
1680         event.SetEventObject(this);
1681         GetEventHandler()->ProcessEvent(event);
1682
1683         m_needsRefresh = FALSE;
1684     }
1685 }
1686
1687 // ----------------------------------------------------------------------------
1688 // event handlers
1689 // ----------------------------------------------------------------------------
1690
1691 // Responds to colour changes: passes event on to children.
1692 void wxWindow::OnSysColourChanged(wxSysColourChangedEvent& event)
1693 {
1694     wxWindowList::Node *node = GetChildren().GetFirst();
1695     while ( node )
1696     {
1697         // Only propagate to non-top-level windows
1698         wxWindow *win = node->GetData();
1699         if ( win->GetParent() )
1700         {
1701             wxSysColourChangedEvent event2;
1702             event.m_eventObject = win;
1703             win->GetEventHandler()->ProcessEvent(event2);
1704         }
1705
1706         node = node->GetNext();
1707     }
1708 }
1709
1710 void wxWindow::OnIdle(wxIdleEvent& WXUNUSED(event))
1711 {
1712     // This calls the UI-update mechanism (querying windows for
1713     // menu/toolbar/control state information)
1714     UpdateWindowUI();
1715 }
1716
1717 // ----------------------------------------------------------------------------
1718 // accelerators
1719 // ----------------------------------------------------------------------------
1720
1721 bool wxWindow::ProcessAccelerator(wxKeyEvent& event)
1722 {
1723     if (!m_acceleratorTable.Ok())
1724         return FALSE;
1725
1726     int count = m_acceleratorTable.GetCount();
1727     wxAcceleratorEntry* entries = m_acceleratorTable.GetEntries();
1728     int i;
1729     for (i = 0; i < count; i++)
1730     {
1731         wxAcceleratorEntry* entry = & (entries[i]);
1732         if (entry->MatchesEvent(event))
1733         {
1734             // Bingo, we have a match. Now find a control that matches the
1735             // entry command id.
1736
1737             // Need to go up to the top of the window hierarchy, since it might
1738             // be e.g. a menu item
1739             wxWindow* parent = this;
1740             while ( parent && !parent->IsTopLevel() )
1741                 parent = parent->GetParent();
1742
1743             if (!parent)
1744                 return FALSE;
1745
1746             wxFrame* frame = wxDynamicCast(parent, wxFrame);
1747             if ( frame )
1748             {
1749                 // Try for a menu command
1750                 if (frame->GetMenuBar())
1751                 {
1752                     wxMenuItem* item = frame->GetMenuBar()->FindItem(entry->GetCommand());
1753                     if (item)
1754                     {
1755                         wxCommandEvent commandEvent(wxEVT_COMMAND_MENU_SELECTED, entry->GetCommand());
1756                         commandEvent.SetEventObject(frame);
1757
1758                         // If ProcessEvent returns TRUE (it was handled), then
1759                         // the calling code will skip the event handling.
1760                         return frame->GetEventHandler()->ProcessEvent(commandEvent);
1761                     }
1762                 }
1763             }
1764
1765             // Find a child matching the command id
1766             wxWindow* child = parent->FindWindow(entry->GetCommand());
1767
1768             // No such child
1769             if (!child)
1770                 return FALSE;
1771
1772             // Now we process those kinds of windows that we can.
1773             // For now, only buttons.
1774             if ( wxDynamicCast(child, wxButton) )
1775             {
1776                 wxCommandEvent commandEvent (wxEVT_COMMAND_BUTTON_CLICKED, child->GetId());
1777                 commandEvent.SetEventObject(child);
1778                 return child->GetEventHandler()->ProcessEvent(commandEvent);
1779             }
1780
1781             return FALSE;
1782         } // matches event
1783     }// for
1784
1785     // We didn't match the key event against an accelerator.
1786     return FALSE;
1787 }
1788
1789 // ============================================================================
1790 // Motif-specific stuff from here on
1791 // ============================================================================
1792
1793 // ----------------------------------------------------------------------------
1794 // function which maintain the global hash table mapping Widgets to wxWindows
1795 // ----------------------------------------------------------------------------
1796
1797 bool wxAddWindowToTable(Widget w, wxWindow *win)
1798 {
1799     wxWindow *oldItem = NULL;
1800     if ((oldItem = (wxWindow *)wxWidgetHashTable->Get ((long) w)))
1801     {
1802         wxLogDebug("Widget table clash: new widget is %ld, %s",
1803                    (long)w, win->GetClassInfo()->GetClassName());
1804         return FALSE;
1805     }
1806
1807     wxWidgetHashTable->Put((long) w, win);
1808
1809     wxLogTrace("widget", "Widget 0x%08x <-> window %p (%s)",
1810                w, win, win->GetClassInfo()->GetClassName());
1811
1812     return TRUE;
1813 }
1814
1815 wxWindow *wxGetWindowFromTable(Widget w)
1816 {
1817     return (wxWindow *)wxWidgetHashTable->Get((long) w);
1818 }
1819
1820 void wxDeleteWindowFromTable(Widget w)
1821 {
1822     wxWidgetHashTable->Delete((long)w);
1823 }
1824
1825 // ----------------------------------------------------------------------------
1826 // add/remove window from the table
1827 // ----------------------------------------------------------------------------
1828
1829 // Add to hash table, add event handler
1830 bool wxWindow::AttachWidget (wxWindow* WXUNUSED(parent), WXWidget mainWidget,
1831                              WXWidget formWidget, int x, int y, int width, int height)
1832 {
1833     wxAddWindowToTable((Widget) mainWidget, this);
1834     if (CanAddEventHandler())
1835     {
1836         XtAddEventHandler((Widget) mainWidget,
1837             ButtonPressMask | ButtonReleaseMask | PointerMotionMask, // | KeyPressMask,
1838             False,
1839             wxPanelItemEventHandler,
1840             (XtPointer) this);
1841     }
1842
1843     if (!formWidget)
1844     {
1845         XtTranslations ptr;
1846         XtOverrideTranslations ((Widget) mainWidget,
1847             ptr = XtParseTranslationTable ("<Configure>: resize()"));
1848         XtFree ((char *) ptr);
1849     }
1850
1851     // Some widgets have a parent form widget, e.g. wxRadioBox
1852     if (formWidget)
1853     {
1854         if (!wxAddWindowToTable((Widget) formWidget, this))
1855             return FALSE;
1856
1857         XtTranslations ptr;
1858         XtOverrideTranslations ((Widget) formWidget,
1859             ptr = XtParseTranslationTable ("<Configure>: resize()"));
1860         XtFree ((char *) ptr);
1861     }
1862
1863     if (x == -1)
1864         x = 0;
1865     if (y == -1)
1866         y = 0;
1867     SetSize (x, y, width, height);
1868
1869     return TRUE;
1870 }
1871
1872 // Remove event handler, remove from hash table
1873 bool wxWindow::DetachWidget(WXWidget widget)
1874 {
1875     if (CanAddEventHandler())
1876     {
1877         XtRemoveEventHandler((Widget) widget,
1878             ButtonPressMask | ButtonReleaseMask | PointerMotionMask, // | KeyPressMask,
1879             False,
1880             wxPanelItemEventHandler,
1881             (XtPointer)this);
1882     }
1883
1884     wxDeleteWindowFromTable((Widget) widget);
1885     return TRUE;
1886 }
1887
1888 // ----------------------------------------------------------------------------
1889 // Motif-specific accessors
1890 // ----------------------------------------------------------------------------
1891
1892 // Get the underlying X window
1893 WXWindow wxWindow::GetXWindow() const
1894 {
1895     Widget wMain = (Widget)GetMainWidget();
1896     if ( wMain )
1897         return (WXWindow) XtWindow(wMain);
1898     else
1899         return (WXWindow) 0;
1900 }
1901
1902 // Get the underlying X display
1903 WXDisplay *wxWindow::GetXDisplay() const
1904 {
1905     Widget wMain = (Widget)GetMainWidget();
1906     if ( wMain )
1907         return (WXDisplay*) XtDisplay(wMain);
1908     else
1909         return (WXDisplay*) NULL;
1910 }
1911
1912 WXWidget wxWindow::GetMainWidget() const
1913 {
1914     if (m_drawingArea)
1915         return m_drawingArea;
1916     else
1917         return m_mainWidget;
1918 }
1919
1920 WXWidget wxWindow::GetClientWidget() const
1921 {
1922     if (m_drawingArea != (WXWidget) 0)
1923         return m_drawingArea;
1924     else
1925         return GetMainWidget();
1926 }
1927
1928 WXWidget wxWindow::GetTopWidget() const
1929 {
1930     return GetMainWidget();
1931 }
1932
1933 WXWidget wxWindow::GetLabelWidget() const
1934 {
1935     return GetMainWidget();
1936 }
1937
1938 // ----------------------------------------------------------------------------
1939 // Motif callbacks
1940 // ----------------------------------------------------------------------------
1941
1942 // All widgets should have this as their resize proc.
1943 // OnSize sent to wxWindow via client data.
1944 void wxWidgetResizeProc(Widget w, XConfigureEvent *WXUNUSED(event), String WXUNUSED(args)[], int *WXUNUSED(num_args))
1945 {
1946     wxWindow *win = wxGetWindowFromTable(w);
1947     if (!win)
1948         return;
1949
1950     if (win->PreResize())
1951     {
1952         int width, height;
1953         win->GetSize(&width, &height);
1954         wxSizeEvent sizeEvent(wxSize(width, height), win->GetId());
1955         sizeEvent.SetEventObject(win);
1956         win->GetEventHandler()->ProcessEvent(sizeEvent);
1957     }
1958 }
1959
1960 static void wxCanvasRepaintProc(Widget drawingArea,
1961                                 XtPointer clientData,
1962                                 XmDrawingAreaCallbackStruct * cbs)
1963 {
1964     if (!wxGetWindowFromTable(drawingArea))
1965         return;
1966
1967     XEvent * event = cbs->event;
1968     wxWindow * win = (wxWindow *) clientData;
1969
1970     switch (event->type)
1971     {
1972     case Expose:
1973         {
1974             win->AddUpdateRect(event->xexpose.x, event->xexpose.y,
1975                                event->xexpose.width, event->xexpose.height);
1976
1977             if (event -> xexpose.count == 0)
1978             {
1979                 win->DoPaint();
1980                 win->ClearUpdateRects();
1981             }
1982             break;
1983         }
1984     }
1985 }
1986
1987 // Unable to deal with Enter/Leave without a separate EventHandler (Motif 1.1.4)
1988 static void wxCanvasEnterLeave(Widget drawingArea,
1989                                XtPointer WXUNUSED(clientData),
1990                                XCrossingEvent * event)
1991 {
1992     XmDrawingAreaCallbackStruct cbs;
1993     XEvent ev;
1994
1995     ((XCrossingEvent &) ev) = *event;
1996
1997     cbs.reason = XmCR_INPUT;
1998     cbs.event = &ev;
1999
2000     wxCanvasInputEvent(drawingArea, (XtPointer) NULL, &cbs);
2001 }
2002
2003 // Fix to make it work under Motif 1.0 (!)
2004 static void wxCanvasMotionEvent (Widget WXUNUSED(drawingArea), XButtonEvent * WXUNUSED(event))
2005 {
2006 #if XmVersion <= 1000
2007     XmDrawingAreaCallbackStruct cbs;
2008     XEvent ev;
2009
2010     ev = *((XEvent *) event);
2011     cbs.reason = XmCR_INPUT;
2012     cbs.event = &ev;
2013
2014     wxCanvasInputEvent (drawingArea, (XtPointer) NULL, &cbs);
2015 #endif // XmVersion <= 1000
2016 }
2017
2018 static void wxCanvasInputEvent(Widget drawingArea,
2019                                XtPointer WXUNUSED(data),
2020                                XmDrawingAreaCallbackStruct * cbs)
2021 {
2022     wxWindow *canvas = wxGetWindowFromTable(drawingArea);
2023     XEvent local_event;
2024
2025     if (canvas==NULL)
2026         return;
2027
2028     if (cbs->reason != XmCR_INPUT)
2029         return;
2030
2031     local_event = *(cbs->event);    // We must keep a copy!
2032
2033     switch (local_event.xany.type)
2034     {
2035     case EnterNotify:
2036     case LeaveNotify:
2037     case ButtonPress:
2038     case ButtonRelease:
2039     case MotionNotify:
2040         {
2041             // FIXME: most of this mouse event code is more or less
2042             // duplicated in wxTranslateMouseEvent
2043             //
2044             wxEventType eventType = wxEVT_NULL;
2045
2046             if (local_event.xany.type == EnterNotify)
2047             {
2048                 //if (local_event.xcrossing.mode!=NotifyNormal)
2049                 //  return ; // Ignore grab events
2050                 eventType = wxEVT_ENTER_WINDOW;
2051                 //            canvas->GetEventHandler()->OnSetFocus();
2052             }
2053             else if (local_event.xany.type == LeaveNotify)
2054             {
2055                 //if (local_event.xcrossingr.mode!=NotifyNormal)
2056                 //  return ; // Ignore grab events
2057                 eventType = wxEVT_LEAVE_WINDOW;
2058                 //            canvas->GetEventHandler()->OnKillFocus();
2059             }
2060             else if (local_event.xany.type == MotionNotify)
2061             {
2062                 eventType = wxEVT_MOTION;
2063             }
2064
2065             else if (local_event.xany.type == ButtonPress)
2066             {
2067                 if (local_event.xbutton.button == Button1)
2068                 {
2069                     eventType = wxEVT_LEFT_DOWN;
2070                     canvas->SetButton1(TRUE);
2071                 }
2072                 else if (local_event.xbutton.button == Button2)
2073                 {
2074                     eventType = wxEVT_MIDDLE_DOWN;
2075                     canvas->SetButton2(TRUE);
2076                 }
2077                 else if (local_event.xbutton.button == Button3)
2078                 {
2079                     eventType = wxEVT_RIGHT_DOWN;
2080                     canvas->SetButton3(TRUE);
2081                 }
2082             }
2083             else if (local_event.xany.type == ButtonRelease)
2084             {
2085                 if (local_event.xbutton.button == Button1)
2086                 {
2087                     eventType = wxEVT_LEFT_UP;
2088                     canvas->SetButton1(FALSE);
2089                 }
2090                 else if (local_event.xbutton.button == Button2)
2091                 {
2092                     eventType = wxEVT_MIDDLE_UP;
2093                     canvas->SetButton2(FALSE);
2094                 }
2095                 else if (local_event.xbutton.button == Button3)
2096                 {
2097                     eventType = wxEVT_RIGHT_UP;
2098                     canvas->SetButton3(FALSE);
2099                 }
2100             }
2101
2102             wxMouseEvent wxevent (eventType);
2103
2104             wxevent.m_leftDown = ((eventType == wxEVT_LEFT_DOWN)
2105                 || (event_left_is_down (&local_event)
2106                 && (eventType != wxEVT_LEFT_UP)));
2107             wxevent.m_middleDown = ((eventType == wxEVT_MIDDLE_DOWN)
2108                 || (event_middle_is_down (&local_event)
2109                 && (eventType != wxEVT_MIDDLE_UP)));
2110             wxevent.m_rightDown = ((eventType == wxEVT_RIGHT_DOWN)
2111                 || (event_right_is_down (&local_event)
2112                 && (eventType != wxEVT_RIGHT_UP)));
2113
2114             wxevent.m_shiftDown = local_event.xbutton.state & ShiftMask;
2115             wxevent.m_controlDown = local_event.xbutton.state & ControlMask;
2116             wxevent.m_altDown = local_event.xbutton.state & Mod3Mask;
2117             wxevent.m_metaDown = local_event.xbutton.state & Mod1Mask;
2118             wxevent.SetTimestamp(local_event.xbutton.time);
2119
2120            if ( eventType == wxEVT_MOTION )
2121            {
2122                 if (local_event.xmotion.is_hint == NotifyHint)
2123                 {
2124                     Window root, child;
2125                     Display *dpy = XtDisplay (drawingArea);
2126
2127                     XQueryPointer (dpy, XtWindow (drawingArea),
2128                         &root, &child,
2129                         &local_event.xmotion.x_root,
2130                         &local_event.xmotion.y_root,
2131                         &local_event.xmotion.x,
2132                         &local_event.xmotion.y,
2133                         &local_event.xmotion.state);
2134                 }
2135                 else
2136                 {
2137                 }
2138            }
2139
2140             // Now check if we need to translate this event into a double click
2141             if (TRUE) // canvas->doubleClickAllowed)
2142             {
2143                 if (wxevent.ButtonDown())
2144                 {
2145                     long dclickTime = XtGetMultiClickTime((Display*) wxGetDisplay());
2146
2147                     // get button and time-stamp
2148                     int button = 0;
2149                     if (wxevent.LeftDown())
2150                         button = 1;
2151                     else if (wxevent.MiddleDown())
2152                         button = 2;
2153                     else if (wxevent.RightDown())
2154                         button = 3;
2155                     long ts = wxevent.GetTimestamp();
2156
2157                     // check, if single or double click
2158                     int buttonLast = canvas->GetLastClickedButton();
2159                     long lastTS = canvas->GetLastClickTime();
2160                     if ( buttonLast && buttonLast == button && (ts - lastTS) < dclickTime )
2161                     {
2162                         // I have a dclick
2163                         canvas->SetLastClick(0, ts);
2164
2165                         wxEventType typeDouble;
2166                         if ( eventType == wxEVT_LEFT_DOWN )
2167                             typeDouble = wxEVT_LEFT_DCLICK;
2168                         else if ( eventType == wxEVT_MIDDLE_DOWN )
2169                             typeDouble = wxEVT_MIDDLE_DCLICK;
2170                         else if ( eventType == wxEVT_RIGHT_DOWN )
2171                             typeDouble = wxEVT_RIGHT_DCLICK;
2172                         else
2173                             typeDouble = wxEVT_NULL;
2174
2175                         if ( typeDouble != wxEVT_NULL )
2176                         {
2177                             wxevent.SetEventType(typeDouble);
2178                         }
2179                     }
2180                     else
2181                     {
2182                         // not fast enough or different button
2183                         canvas->SetLastClick(button, ts);
2184                     }
2185                 }
2186             }
2187
2188             wxevent.SetId(canvas->GetId());
2189             wxevent.SetEventObject(canvas);
2190             wxevent.m_x = local_event.xbutton.x;
2191             wxevent.m_y = local_event.xbutton.y;
2192             canvas->GetEventHandler()->ProcessEvent (wxevent);
2193 #if 0
2194             if (eventType == wxEVT_ENTER_WINDOW ||
2195                     eventType == wxEVT_LEAVE_WINDOW ||
2196                     eventType == wxEVT_MOTION
2197                )
2198                 return;
2199 #endif // 0
2200             break;
2201       }
2202     case KeyPress:
2203         {
2204             wxKeyEvent event (wxEVT_CHAR);
2205             if (wxTranslateKeyEvent (event, canvas, (Widget) 0, &local_event))
2206             {
2207                 // Implement wxFrame::OnCharHook by checking ancestor.
2208                 wxWindow *parent = canvas->GetParent();
2209                 while (parent && !parent->IsKindOf(CLASSINFO(wxFrame)))
2210                     parent = parent->GetParent();
2211
2212                 if (parent)
2213                 {
2214                     event.SetEventType(wxEVT_CHAR_HOOK);
2215                     if (parent->GetEventHandler()->ProcessEvent(event))
2216                         return;
2217                 }
2218
2219                 // For simplicity, OnKeyDown is the same as OnChar
2220                 // TODO: filter modifier key presses from OnChar
2221                 event.SetEventType(wxEVT_KEY_DOWN);
2222
2223                 // Only process OnChar if OnKeyDown didn't swallow it
2224                 if (!canvas->GetEventHandler()->ProcessEvent (event))
2225                 {
2226                   event.SetEventType(wxEVT_CHAR);
2227                   canvas->GetEventHandler()->ProcessEvent (event);
2228         }
2229             }
2230             break;
2231         }
2232     case KeyRelease:
2233         {
2234             wxKeyEvent event (wxEVT_KEY_UP);
2235             if (wxTranslateKeyEvent (event, canvas, (Widget) 0, &local_event))
2236             {
2237                 canvas->GetEventHandler()->ProcessEvent (event);
2238             }
2239             break;
2240         }
2241     case FocusIn:
2242         {
2243             if (local_event.xfocus.detail != NotifyPointer)
2244             {
2245                 wxFocusEvent event(wxEVT_SET_FOCUS, canvas->GetId());
2246                 event.SetEventObject(canvas);
2247                 canvas->GetEventHandler()->ProcessEvent(event);
2248             }
2249             break;
2250         }
2251     case FocusOut:
2252         {
2253             if (local_event.xfocus.detail != NotifyPointer)
2254             {
2255                 wxFocusEvent event(wxEVT_KILL_FOCUS, canvas->GetId());
2256                 event.SetEventObject(canvas);
2257                 canvas->GetEventHandler()->ProcessEvent(event);
2258             }
2259             break;
2260         }
2261     default:
2262         break;
2263     }
2264 }
2265
2266 static void wxPanelItemEventHandler(Widget    wid,
2267                                     XtPointer WXUNUSED(client_data),
2268                                     XEvent*   event,
2269                                     Boolean  *continueToDispatch)
2270 {
2271     // Widget can be a label or the actual widget.
2272
2273     wxWindow *window = wxGetWindowFromTable(wid);
2274     if (window)
2275     {
2276         wxMouseEvent wxevent(0);
2277         if (wxTranslateMouseEvent(wxevent, window, wid, event))
2278         {
2279             window->GetEventHandler()->ProcessEvent(wxevent);
2280         }
2281     }
2282
2283     // TODO: probably the key to allowing default behaviour to happen. Say we
2284     // set a m_doDefault flag to FALSE at the start of this function. Then in
2285     // e.g. wxWindow::OnMouseEvent we can call Default() which sets this flag to
2286     // TRUE, indicating that default processing can happen. Thus, behaviour can
2287     // appear to be overridden just by adding an event handler and not calling
2288     // wxWindow::OnWhatever. ALSO, maybe we can use this instead of the current
2289     // way of handling drawing area events, to simplify things.
2290     *continueToDispatch = True;
2291 }
2292
2293 static void wxScrollBarCallback(Widget scrollbar,
2294                                 XtPointer clientData,
2295                                 XmScrollBarCallbackStruct *cbs)
2296 {
2297     wxWindow *win = wxGetWindowFromTable(scrollbar);
2298     int orientation = (int) clientData;
2299
2300     wxEventType eventType = wxEVT_NULL;
2301     switch (cbs->reason)
2302     {
2303     case XmCR_INCREMENT:
2304         {
2305             eventType = wxEVT_SCROLLWIN_LINEDOWN;
2306             break;
2307         }
2308     case XmCR_DECREMENT:
2309         {
2310             eventType = wxEVT_SCROLLWIN_LINEUP;
2311             break;
2312         }
2313     case XmCR_DRAG:
2314         {
2315             eventType = wxEVT_SCROLLWIN_THUMBTRACK;
2316             break;
2317         }
2318     case XmCR_VALUE_CHANGED:
2319         {
2320             eventType = wxEVT_SCROLLWIN_THUMBRELEASE;
2321             break;
2322         }
2323     case XmCR_PAGE_INCREMENT:
2324         {
2325             eventType = wxEVT_SCROLLWIN_PAGEDOWN;
2326             break;
2327         }
2328     case XmCR_PAGE_DECREMENT:
2329         {
2330             eventType = wxEVT_SCROLLWIN_PAGEUP;
2331             break;
2332         }
2333     case XmCR_TO_TOP:
2334         {
2335             eventType = wxEVT_SCROLLWIN_TOP;
2336             break;
2337         }
2338     case XmCR_TO_BOTTOM:
2339         {
2340             eventType = wxEVT_SCROLLWIN_BOTTOM;
2341             break;
2342         }
2343     default:
2344         {
2345             // Should never get here
2346             wxFAIL_MSG("Unknown scroll event.");
2347             break;
2348         }
2349     }
2350
2351     wxScrollWinEvent event(eventType,
2352                            cbs->value,
2353                            ((orientation == XmHORIZONTAL) ?
2354                             wxHORIZONTAL : wxVERTICAL));
2355     event.SetEventObject( win );
2356     win->GetEventHandler()->ProcessEvent(event);
2357 }
2358
2359 // For repainting arbitrary windows
2360 void wxUniversalRepaintProc(Widget w, XtPointer WXUNUSED(c_data), XEvent *event, char *)
2361 {
2362     Window window;
2363     Display *display;
2364
2365     wxWindow* win = wxGetWindowFromTable(w);
2366     if (!win)
2367         return;
2368
2369     switch(event -> type)
2370     {
2371     case Expose:
2372         {
2373             window = (Window) win -> GetXWindow();
2374             display = (Display *) win -> GetXDisplay();
2375
2376             if (event -> xexpose.count == 0)
2377             {
2378                 win->DoPaint();
2379
2380                 win->ClearUpdateRects();
2381             }
2382             else
2383             {
2384                 win->AddUpdateRect(event->xexpose.x, event->xexpose.y,
2385                                    event->xexpose.width, event->xexpose.height);
2386             }
2387
2388             break;
2389         }
2390     }
2391 }
2392
2393 // ----------------------------------------------------------------------------
2394 // CanvaseXXXSize() functions
2395 // ----------------------------------------------------------------------------
2396
2397 void wxWindow::CanvasSetSize(int x, int y, int w, int h, int sizeFlags)
2398 {
2399     CanvasSetSizeIntr(x, y, w, h, sizeFlags, FALSE);
2400 }
2401
2402 // SetSize, but as per old wxCanvas (with drawing widget etc.)
2403 void wxWindow::CanvasSetSizeIntr(int x, int y, int w, int h, int sizeFlags,
2404                                  bool fromCtor)
2405 {
2406     // A bit of optimization to help sort out the flickers.
2407     int oldX = -1, oldY = -1, oldW = -1, oldH = -1;
2408     // see the top of the file, near DoSetSizeIntr
2409     if( !fromCtor )
2410     {
2411         GetSize(& oldW, & oldH);
2412         GetPosition(& oldX, & oldY);
2413     }
2414
2415     bool useOldPos = FALSE;
2416     bool useOldSize = FALSE;
2417
2418     if ((x == -1) && (x == -1) && ((sizeFlags & wxSIZE_ALLOW_MINUS_ONE) == 0))
2419         useOldPos = TRUE;
2420     else if (x == oldX && y == oldY)
2421         useOldPos = TRUE;
2422
2423     if ((w == -1) && (h == -1))
2424         useOldSize = TRUE;
2425     else if (w == oldW && h == oldH)
2426         useOldSize = TRUE;
2427
2428     if (!wxNoOptimize::CanOptimize())
2429     {
2430         useOldSize = FALSE; useOldPos = FALSE;
2431     }
2432
2433     if (useOldPos && useOldSize)
2434         return;
2435
2436     Widget drawingArea = (Widget) m_drawingArea;
2437     bool managed = XtIsManaged(m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow);
2438
2439     if (managed)
2440         XtUnmanageChild (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow);
2441     XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_ANY, NULL);
2442
2443     int xx = x; int yy = y;
2444     AdjustForParentClientOrigin(xx, yy, sizeFlags);
2445
2446     if (!useOldPos)
2447     {
2448         if (x > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2449         {
2450             XtVaSetValues (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow,
2451                 XmNx, xx, NULL);
2452         }
2453
2454         if (y > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2455         {
2456             XtVaSetValues (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow,
2457                 XmNy, yy, NULL);
2458         }
2459     }
2460
2461     if (!useOldSize)
2462     {
2463
2464         if (w > -1)
2465         {
2466             if (m_borderWidget)
2467             {
2468                 XtVaSetValues ((Widget) m_borderWidget, XmNwidth, w, NULL);
2469                 short thick, margin;
2470                 XtVaGetValues ((Widget) m_borderWidget,
2471                     XmNshadowThickness, &thick,
2472                     XmNmarginWidth, &margin,
2473                     NULL);
2474                 w -= 2 * (thick + margin);
2475             }
2476
2477             XtVaSetValues ((Widget) m_scrolledWindow, XmNwidth, w, NULL);
2478
2479             Dimension spacing;
2480             Widget sbar;
2481             XtVaGetValues ((Widget) m_scrolledWindow,
2482                 XmNspacing, &spacing,
2483                 XmNverticalScrollBar, &sbar,
2484                 NULL);
2485             Dimension wsbar;
2486             if (sbar)
2487                 XtVaGetValues (sbar, XmNwidth, &wsbar, NULL);
2488             else
2489                 wsbar = 0;
2490
2491             w -= (spacing + wsbar);
2492
2493 #if 0
2494             XtVaSetValues(drawingArea, XmNwidth, w, NULL);
2495 #endif // 0
2496         }
2497         if (h > -1)
2498         {
2499             if (m_borderWidget)
2500             {
2501                 XtVaSetValues ((Widget) m_borderWidget, XmNheight, h, NULL);
2502                 short thick, margin;
2503                 XtVaGetValues ((Widget) m_borderWidget,
2504                     XmNshadowThickness, &thick,
2505                     XmNmarginHeight, &margin,
2506                     NULL);
2507                 h -= 2 * (thick + margin);
2508             }
2509
2510             XtVaSetValues ((Widget) m_scrolledWindow, XmNheight, h, NULL);
2511
2512             Dimension spacing;
2513             Widget sbar;
2514             XtVaGetValues ((Widget) m_scrolledWindow,
2515                 XmNspacing, &spacing,
2516                 XmNhorizontalScrollBar, &sbar,
2517                 NULL);
2518             Dimension wsbar;
2519             if (sbar)
2520                 XtVaGetValues (sbar, XmNheight, &wsbar, NULL);
2521             else
2522                 wsbar = 0;
2523
2524             h -= (spacing + wsbar);
2525
2526 #if 0
2527             XtVaSetValues(drawingArea, XmNheight, h, NULL);
2528 #endif // 0
2529         }
2530     }
2531
2532     if (managed)
2533         XtManageChild (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow);
2534     XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_NONE, NULL);
2535
2536 #if 0
2537     int ww, hh;
2538     GetClientSize (&ww, &hh);
2539     wxSizeEvent sizeEvent(wxSize(ww, hh), GetId());
2540     sizeEvent.SetEventObject(this);
2541
2542     GetEventHandler()->ProcessEvent(sizeEvent);
2543 #endif // 0
2544 }
2545
2546 void wxWindow::CanvasSetClientSize (int w, int h)
2547 {
2548     Widget drawingArea = (Widget) m_drawingArea;
2549
2550     XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_ANY, NULL);
2551
2552     if (w > -1)
2553         XtVaSetValues(drawingArea, XmNwidth, w, NULL);
2554     if (h > -1)
2555         XtVaSetValues(drawingArea, XmNheight, h, NULL);
2556
2557 #if 0
2558     // TODO: is this necessary?
2559     allowRepainting = FALSE;
2560
2561     XSync (XtDisplay (drawingArea), FALSE);
2562     XEvent event;
2563     while (XtAppPending (wxTheApp->appContext))
2564     {
2565         XFlush (XtDisplay (drawingArea));
2566         XtAppNextEvent (wxTheApp->appContext, &event);
2567         XtDispatchEvent (&event);
2568     }
2569 #endif // 0
2570
2571     XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_NONE, NULL);
2572
2573 #if 0
2574     allowRepainting = TRUE;
2575     DoRefresh ();
2576
2577     wxSizeEvent sizeEvent(wxSize(w, h), GetId());
2578     sizeEvent.SetEventObject(this);
2579
2580     GetEventHandler()->ProcessEvent(sizeEvent);
2581 #endif // 0
2582 }
2583
2584 void wxWindow::CanvasGetClientSize (int *w, int *h) const
2585 {
2586     // Must return the same thing that was set via SetClientSize
2587     Dimension xx, yy;
2588     XtVaGetValues ((Widget) m_drawingArea, XmNwidth, &xx, XmNheight, &yy, NULL);
2589     *w = xx;
2590     *h = yy;
2591 }
2592
2593 void wxWindow::CanvasGetSize (int *w, int *h) const
2594 {
2595     Dimension xx, yy;
2596     if ((Widget) m_borderWidget)
2597         XtVaGetValues ((Widget) m_borderWidget, XmNwidth, &xx, XmNheight, &yy, NULL);
2598     else if ((Widget) m_scrolledWindow)
2599         XtVaGetValues ((Widget) m_scrolledWindow, XmNwidth, &xx, XmNheight, &yy, NULL);
2600     else
2601         XtVaGetValues ((Widget) m_drawingArea, XmNwidth, &xx, XmNheight, &yy, NULL);
2602
2603     *w = xx;
2604     *h = yy;
2605 }
2606
2607 void wxWindow::CanvasGetPosition (int *x, int *y) const
2608 {
2609     Position xx, yy;
2610     XtVaGetValues (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow, XmNx, &xx, XmNy, &yy, NULL);
2611
2612     // We may be faking the client origin.
2613     // So a window that's really at (0, 30) may appear
2614     // (to wxWin apps) to be at (0, 0).
2615     if (GetParent())
2616     {
2617         wxPoint pt(GetParent()->GetClientAreaOrigin());
2618         xx -= pt.x;
2619         yy -= pt.y;
2620     }
2621
2622     *x = xx;
2623     *y = yy;
2624 }
2625
2626 // ----------------------------------------------------------------------------
2627 // TranslateXXXEvent() functions
2628 // ----------------------------------------------------------------------------
2629
2630 bool wxTranslateMouseEvent(wxMouseEvent& wxevent, wxWindow *win, Widget widget, XEvent *xevent)
2631 {
2632     switch (xevent->xany.type)
2633     {
2634         case EnterNotify:  // never received here - yes ? MB
2635         case LeaveNotify:  // never received here - yes ? MB
2636         case ButtonPress:
2637         case ButtonRelease:
2638         case MotionNotify:
2639         {
2640             wxEventType eventType = wxEVT_NULL;
2641
2642             // FIXME: this is never true I think - MB
2643             //
2644             if (xevent->xany.type == LeaveNotify)
2645             {
2646                 win->SetButton1(FALSE);
2647                 win->SetButton2(FALSE);
2648                 win->SetButton3(FALSE);
2649                 return FALSE;
2650             }
2651             else if (xevent->xany.type == MotionNotify)
2652             {
2653                 eventType = wxEVT_MOTION;
2654             }
2655             else if (xevent->xany.type == ButtonPress)
2656             {
2657                 wxevent.SetTimestamp(xevent->xbutton.time);
2658                 int button = 0;
2659                 if (xevent->xbutton.button == Button1)
2660                 {
2661                     eventType = wxEVT_LEFT_DOWN;
2662                     win->SetButton1(TRUE);
2663                     button = 1;
2664                 }
2665                 else if (xevent->xbutton.button == Button2)
2666                 {
2667                     eventType = wxEVT_MIDDLE_DOWN;
2668                     win->SetButton2(TRUE);
2669                     button = 2;
2670                 }
2671                 else if (xevent->xbutton.button == Button3)
2672                 {
2673                     eventType = wxEVT_RIGHT_DOWN;
2674                     win->SetButton3(TRUE);
2675                     button = 3;
2676                 }
2677
2678                 // check for a double click
2679                 //
2680                 long dclickTime = XtGetMultiClickTime((Display*) wxGetDisplay());
2681                 long ts = wxevent.GetTimestamp();
2682
2683                 int buttonLast = win->GetLastClickedButton();
2684                 long lastTS = win->GetLastClickTime();
2685                 if ( buttonLast && buttonLast == button && (ts - lastTS) < dclickTime )
2686                 {
2687                     // I have a dclick
2688                     win->SetLastClick(0, ts);
2689                     if ( eventType == wxEVT_LEFT_DOWN )
2690                         eventType = wxEVT_LEFT_DCLICK;
2691                     else if ( eventType == wxEVT_MIDDLE_DOWN )
2692                         eventType = wxEVT_MIDDLE_DCLICK;
2693                     else if ( eventType == wxEVT_RIGHT_DOWN )
2694                         eventType = wxEVT_RIGHT_DCLICK;
2695                 }
2696                 else
2697                 {
2698                     // not fast enough or different button
2699                     win->SetLastClick(button, ts);
2700                 }
2701             }
2702             else if (xevent->xany.type == ButtonRelease)
2703             {
2704                 if (xevent->xbutton.button == Button1)
2705                 {
2706                     eventType = wxEVT_LEFT_UP;
2707                     win->SetButton1(FALSE);
2708                 }
2709                 else if (xevent->xbutton.button == Button2)
2710                 {
2711                     eventType = wxEVT_MIDDLE_UP;
2712                     win->SetButton2(FALSE);
2713                 }
2714                 else if (xevent->xbutton.button == Button3)
2715                 {
2716                     eventType = wxEVT_RIGHT_UP;
2717                     win->SetButton3(FALSE);
2718                 }
2719                 else return FALSE;
2720             }
2721             else
2722             {
2723                 return FALSE;
2724             }
2725
2726             wxevent.SetEventType(eventType);
2727
2728             Position x1, y1;
2729             XtVaGetValues(widget, XmNx, &x1, XmNy, &y1, NULL);
2730
2731             int x2, y2;
2732             win->GetPosition(&x2, &y2);
2733
2734             // The button x/y must be translated to wxWindows
2735             // window space - the widget might be a label or button,
2736             // within a form.
2737             int dx = 0;
2738             int dy = 0;
2739             if (widget != (Widget)win->GetMainWidget())
2740             {
2741                 dx = x1;
2742                 dy = y1;
2743             }
2744
2745             wxevent.m_x = xevent->xbutton.x + dx;
2746             wxevent.m_y = xevent->xbutton.y + dy;
2747
2748             wxevent.m_leftDown = ((eventType == wxEVT_LEFT_DOWN)
2749                 || (event_left_is_down (xevent)
2750                 && (eventType != wxEVT_LEFT_UP)));
2751             wxevent.m_middleDown = ((eventType == wxEVT_MIDDLE_DOWN)
2752                 || (event_middle_is_down (xevent)
2753                 && (eventType != wxEVT_MIDDLE_UP)));
2754             wxevent.m_rightDown = ((eventType == wxEVT_RIGHT_DOWN)
2755                 || (event_right_is_down (xevent)
2756                 && (eventType != wxEVT_RIGHT_UP)));
2757
2758             wxevent.m_shiftDown = xevent->xbutton.state & ShiftMask;
2759             wxevent.m_controlDown = xevent->xbutton.state & ControlMask;
2760             wxevent.m_altDown = xevent->xbutton.state & Mod3Mask;
2761             wxevent.m_metaDown = xevent->xbutton.state & Mod1Mask;
2762
2763             wxevent.SetId(win->GetId());
2764             wxevent.SetEventObject(win);
2765
2766             return TRUE;
2767         }
2768     }
2769     return FALSE;
2770 }
2771
2772 bool wxTranslateKeyEvent(wxKeyEvent& wxevent, wxWindow *win, Widget WXUNUSED(widget), XEvent *xevent)
2773 {
2774     switch (xevent->xany.type)
2775     {
2776     case KeyPress:
2777     case KeyRelease:
2778         {
2779             char buf[20];
2780
2781             KeySym keySym;
2782 #if 0
2783             XComposeStatus compose;
2784             (void) XLookupString ((XKeyEvent *) xevent, buf, 20, &keySym, &compose);
2785 #endif // 0
2786             (void) XLookupString ((XKeyEvent *) xevent, buf, 20, &keySym, NULL);
2787             int id = wxCharCodeXToWX (keySym);
2788             // id may be WXK_xxx code - these are outside ASCII range, so we
2789             // can't just use toupper() on id
2790             if (id >= 'a' && id <= 'z')
2791                 id = toupper(id);
2792
2793             if (xevent->xkey.state & ShiftMask)
2794                 wxevent.m_shiftDown = TRUE;
2795             if (xevent->xkey.state & ControlMask)
2796                 wxevent.m_controlDown = TRUE;
2797             if (xevent->xkey.state & Mod3Mask)
2798                 wxevent.m_altDown = TRUE;
2799             if (xevent->xkey.state & Mod1Mask)
2800                 wxevent.m_metaDown = TRUE;
2801             wxevent.SetEventObject(win);
2802             wxevent.m_keyCode = id;
2803             wxevent.SetTimestamp(xevent->xkey.time);
2804
2805             wxevent.m_x = xevent->xbutton.x;
2806             wxevent.m_y = xevent->xbutton.y;
2807
2808             if (id > -1)
2809                 return TRUE;
2810             else
2811                 return FALSE;
2812             break;
2813         }
2814     default:
2815         break;
2816     }
2817     return FALSE;
2818 }
2819
2820 // ----------------------------------------------------------------------------
2821 // Colour stuff
2822 // ----------------------------------------------------------------------------
2823
2824 #define YAllocColor XAllocColor
2825 XColor g_itemColors[5];
2826 int wxComputeColours (Display *display, wxColour * back, wxColour * fore)
2827 {
2828     int result;
2829     static XmColorProc colorProc;
2830
2831     result = wxNO_COLORS;
2832
2833     if (back)
2834     {
2835         g_itemColors[0].red = (((long) back->Red ()) << 8);
2836         g_itemColors[0].green = (((long) back->Green ()) << 8);
2837         g_itemColors[0].blue = (((long) back->Blue ()) << 8);
2838         g_itemColors[0].flags = DoRed | DoGreen | DoBlue;
2839         if (colorProc == (XmColorProc) NULL)
2840         {
2841             // Get a ptr to the actual function
2842             colorProc = XmSetColorCalculation ((XmColorProc) NULL);
2843             // And set it back to motif.
2844             XmSetColorCalculation (colorProc);
2845         }
2846         (*colorProc) (&g_itemColors[wxBACK_INDEX],
2847             &g_itemColors[wxFORE_INDEX],
2848             &g_itemColors[wxSELE_INDEX],
2849             &g_itemColors[wxTOPS_INDEX],
2850             &g_itemColors[wxBOTS_INDEX]);
2851         result = wxBACK_COLORS;
2852     }
2853     if (fore)
2854     {
2855         g_itemColors[wxFORE_INDEX].red = (((long) fore->Red ()) << 8);
2856         g_itemColors[wxFORE_INDEX].green = (((long) fore->Green ()) << 8);
2857         g_itemColors[wxFORE_INDEX].blue = (((long) fore->Blue ()) << 8);
2858         g_itemColors[wxFORE_INDEX].flags = DoRed | DoGreen | DoBlue;
2859         if (result == wxNO_COLORS)
2860             result = wxFORE_COLORS;
2861     }
2862
2863     Display *dpy = display;
2864     Colormap cmap = (Colormap) wxTheApp->GetMainColormap((WXDisplay*) dpy);
2865
2866     if (back)
2867     {
2868         /* 5 Colours to allocate */
2869         for (int i = 0; i < 5; i++)
2870             if (!YAllocColor (dpy, cmap, &g_itemColors[i]))
2871                 result = wxNO_COLORS;
2872     }
2873     else if (fore)
2874     {
2875         /* Only 1 colour to allocate */
2876         if (!YAllocColor (dpy, cmap, &g_itemColors[wxFORE_INDEX]))
2877             result = wxNO_COLORS;
2878     }
2879
2880     return (result);
2881
2882 }
2883
2884 // Changes the foreground and background colours to be derived from the current
2885 // background colour. To change the foreground colour, you must call
2886 // SetForegroundColour explicitly.
2887 void wxWindow::ChangeBackgroundColour()
2888 {
2889     WXWidget mainWidget = GetMainWidget();
2890     if ( mainWidget )
2891         DoChangeBackgroundColour(mainWidget, m_backgroundColour);
2892
2893     // This not necessary
2894 #if 0
2895
2896     if (m_scrolledWindow && (GetMainWidget() != m_scrolledWindow))
2897     {
2898         DoChangeBackgroundColour(m_scrolledWindow, m_backgroundColour);
2899         // Have to set the scrollbar colours back since
2900         // the scrolled window seemed to change them
2901         wxColour backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
2902
2903         if (m_hScrollBar)
2904             DoChangeBackgroundColour(m_hScrollBar, backgroundColour);
2905         if (m_vScrollBar)
2906             DoChangeBackgroundColour(m_vScrollBar, backgroundColour);
2907     }
2908 #endif
2909 }
2910
2911 void wxWindow::ChangeForegroundColour()
2912 {
2913     WXWidget mainWidget = GetMainWidget();
2914     if ( mainWidget )
2915         DoChangeForegroundColour(mainWidget, m_foregroundColour);
2916     if ( m_scrolledWindow && mainWidget != m_scrolledWindow )
2917         DoChangeForegroundColour(m_scrolledWindow, m_foregroundColour);
2918 }
2919
2920 // Change a widget's foreground and background colours.
2921 void wxWindow::DoChangeForegroundColour(WXWidget widget, wxColour& foregroundColour)
2922 {
2923     // When should we specify the foreground, if it's calculated
2924     // by wxComputeColours?
2925     // Solution: say we start with the default (computed) foreground colour.
2926     // If we call SetForegroundColour explicitly for a control or window,
2927     // then the foreground is changed.
2928     // Therefore SetBackgroundColour computes the foreground colour, and
2929     // SetForegroundColour changes the foreground colour. The ordering is
2930     // important.
2931
2932     Widget w = (Widget)widget;
2933     XtVaSetValues(
2934                   w,
2935                   XmNforeground, foregroundColour.AllocColour(XtDisplay(w)),
2936                   NULL
2937                  );
2938 }
2939
2940 void wxWindow::DoChangeBackgroundColour(WXWidget widget, wxColour& backgroundColour, bool changeArmColour)
2941 {
2942     wxComputeColours (XtDisplay((Widget) widget), & backgroundColour,
2943         (wxColour*) NULL);
2944
2945     XtVaSetValues ((Widget) widget,
2946         XmNbackground, g_itemColors[wxBACK_INDEX].pixel,
2947         XmNtopShadowColor, g_itemColors[wxTOPS_INDEX].pixel,
2948         XmNbottomShadowColor, g_itemColors[wxBOTS_INDEX].pixel,
2949         XmNforeground, g_itemColors[wxFORE_INDEX].pixel,
2950         NULL);
2951
2952     if (changeArmColour)
2953         XtVaSetValues ((Widget) widget,
2954         XmNarmColor, g_itemColors[wxSELE_INDEX].pixel,
2955         NULL);
2956 }
2957
2958 bool wxWindow::SetBackgroundColour(const wxColour& col)
2959 {
2960     if ( !wxWindowBase::SetBackgroundColour(col) )
2961         return FALSE;
2962
2963     ChangeBackgroundColour();
2964
2965     return TRUE;
2966 }
2967
2968 bool wxWindow::SetForegroundColour(const wxColour& col)
2969 {
2970     if ( !wxWindowBase::SetForegroundColour(col) )
2971         return FALSE;
2972
2973     ChangeForegroundColour();
2974
2975     return TRUE;
2976 }
2977
2978 void wxWindow::ChangeFont(bool keepOriginalSize)
2979 {
2980     // Note that this causes the widget to be resized back
2981     // to its original size! We therefore have to set the size
2982     // back again. TODO: a better way in Motif?
2983     Widget w = (Widget) GetLabelWidget(); // Usually the main widget
2984     if (w && m_font.Ok())
2985     {
2986         int width, height, width1, height1;
2987         GetSize(& width, & height);
2988
2989         // lesstif 0.87 hangs here
2990 #ifndef LESSTIF_VERSION
2991         XtVaSetValues (w,
2992             XmNfontList, (XmFontList) m_font.GetFontList(1.0, XtDisplay(w)),
2993             NULL);
2994 #endif
2995
2996         GetSize(& width1, & height1);
2997         if (keepOriginalSize && (width != width1 || height != height1))
2998         {
2999             SetSize(-1, -1, width, height);
3000         }
3001     }
3002 }
3003
3004 // ----------------------------------------------------------------------------
3005 // global functions
3006 // ----------------------------------------------------------------------------
3007
3008 wxWindow *wxGetActiveWindow()
3009 {
3010     // TODO
3011     wxFAIL_MSG("Not implemented");
3012     return NULL;
3013 }
3014
3015 /* static */
3016 wxWindow *wxWindowBase::GetCapture()
3017 {
3018     return (wxWindow *)g_captureWindow;
3019 }
3020
3021
3022 // Find the wxWindow at the current mouse position, returning the mouse
3023 // position.
3024 wxWindow* wxFindWindowAtPointer(wxPoint& pt)
3025 {
3026     return wxFindWindowAtPoint(wxGetMousePosition());
3027 }
3028
3029 // Get the current mouse position.
3030 wxPoint wxGetMousePosition()
3031 {
3032     Display *display = (Display*) wxGetDisplay();
3033     Window rootWindow = RootWindowOfScreen (DefaultScreenOfDisplay(display));
3034     Window rootReturn, childReturn;
3035     int rootX, rootY, winX, winY;
3036     unsigned int maskReturn;
3037
3038     XQueryPointer (display,
3039                    rootWindow,
3040                    &rootReturn,
3041                    &childReturn,
3042                    &rootX, &rootY, &winX, &winY, &maskReturn);
3043     return wxPoint(rootX, rootY);
3044 }
3045
3046
3047 // ----------------------------------------------------------------------------
3048 // wxNoOptimize: switch off size optimization
3049 // ----------------------------------------------------------------------------
3050
3051 int wxNoOptimize::ms_count = 0;
3052