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 #include "wx/evtloop.h"
  49
  50 #if  wxUSE_DRAG_AND_DROP
  51     #include "wx/dnd.h"
  52 #endif
  53
  54 // DoSetSizeIntr and CanvasSetSizeIntr
  55 // PROBLEM:
  56 // under Motif composite controls (such as wxCalendarCtrl or generic wxSpinCtrl
  57 // don't work and/or segfault because
  58 // 1) wxWindow::Create calls SetSize,
  59 //    which results in a call to DoSetSize much earlier than in the other ports
  60 // 2) if wxWindow::Create is called (wxControl::Create calls it)
  61 //    then DoSetSize is never called, causing layout problems in composite
  62 //    controls
  63 //
  64 // SOLUTION:
  65 // 1) don't call SetSize, DoSetSize, DoMoveWindow, DoGetPosition,
  66 //    DoSetPosition directly or indirectly from wxWindow::Create
  67 // 2) call DoMoveWindow from DoSetSize, allowing controls to override it,
  68 //    but make wxWindow::DoMoveWindow a no-op if it is called from
  69 //    an overridden DoMoveWindow (i.e. wxFoo::DoMoveWindow calls
  70 //    wxWindow::DoMoveWindow; this is to preserve the behaviour
  71 //    before this change
  72
  73 #ifdef __VMS__
  74 #pragma message disable nosimpint
  75 #endif
  76 #include <Xm/Xm.h>
  77
  78 #include <Xm/DrawingA.h>
  79 #include <Xm/ScrolledW.h>
  80 #include <Xm/ScrollBar.h>
  81 #include <Xm/Frame.h>
  82 #include <Xm/Label.h>
  83 #include <Xm/RowColumn.h>           // for XmMenuPosition
  84 #ifdef __VMS__
  85 #pragma message enable nosimpint
  86 #endif
  87
  88 #include "wx/motif/private.h"
  89
  90 #include <string.h>
  91
  92 // ----------------------------------------------------------------------------
  93 // constants
  94 // ----------------------------------------------------------------------------
  95
  96 static const int SCROLL_MARGIN = 4;
  97
  98 // ----------------------------------------------------------------------------
  99 // global variables for this module
 100 // ----------------------------------------------------------------------------
 101
 102 extern wxHashTable *wxWidgetHashTable;
 103 static wxWindow* g_captureWindow = NULL;
 104
 105
 106 // ----------------------------------------------------------------------------
 107 // private functions
 108 // ----------------------------------------------------------------------------
 109
 110 static void wxCanvasRepaintProc(Widget, XtPointer, XmDrawingAreaCallbackStruct * cbs);
 111 static void wxCanvasInputEvent(Widget drawingArea, XtPointer data, XmDrawingAreaCallbackStruct * cbs);
 112 static void wxCanvasMotionEvent(Widget, XButtonEvent * event);
 113 static void wxCanvasEnterLeave(Widget drawingArea, XtPointer clientData, XCrossingEvent * event);
 114 static void wxScrollBarCallback(Widget widget, XtPointer clientData,
 115                                 XmScrollBarCallbackStruct *cbs);
 116 static void wxPanelItemEventHandler(Widget    wid,
 117                                     XtPointer client_data,
 118                                     XEvent*   event,
 119                                     Boolean  *continueToDispatch);
 120
 121 // unused for now
 122 #if 0
 123
 124 // Helper function for 16-bit fonts
 125 static int str16len(const char *s)
 126 {
 127     int count = 0;
 128
 129     while (s[0] && s[1]) {
 130         count++;
 131         s += 2;
 132     }
 133
 134     return count;
 135 }
 136
 137 #endif // 0
 138
 139 // ----------------------------------------------------------------------------
 140 // macros
 141 // ----------------------------------------------------------------------------
 142
 143 #define event_left_is_down(x) ((x)->xbutton.state & Button1Mask)
 144 #define event_middle_is_down(x) ((x)->xbutton.state & Button2Mask)
 145 #define event_right_is_down(x) ((x)->xbutton.state & Button3Mask)
 146
 147 // ----------------------------------------------------------------------------
 148 // event tables
 149 // ----------------------------------------------------------------------------
 150
 151     IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxWindowBase)
 152
 153     BEGIN_EVENT_TABLE(wxWindow, wxWindowBase)
 154         EVT_SYS_COLOUR_CHANGED(wxWindow::OnSysColourChanged)
 155         EVT_IDLE(wxWindow::OnIdle)
 156     END_EVENT_TABLE()
 157
 158 // ============================================================================
 159 // implementation
 160 // ============================================================================
 161
 162 // ----------------------------------------------------------------------------
 163 // helper functions
 164 // ----------------------------------------------------------------------------
 165
 166 void wxWindow::UnmanageAndDestroy(WXWidget widget)
 167 {
 168     Widget w = (Widget)widget;
 169     if ( w )
 170     {
 171         XtUnmanageChild(w);
 172         XtDestroyWidget(w);
 173     }
 174 }
 175
 176 bool wxWindow::MapOrUnmap(WXWidget widget, bool domap)
 177 {
 178     Widget w = (Widget)widget;
 179     if ( !w )
 180         return FALSE;
 181
 182     if ( domap )
 183         XtMapWidget(w);
 184     else
 185         XtUnmapWidget(w);
 186
 187     //   Rationale: a lot of common operations (including but not
 188     // limited to moving, resizing and appending items to a listbox)
 189     // unmamange the widget, do their work, then manage it again.
 190     // This means that, for example adding an item to a listbox will show it,
 191     // or that most controls are shown every time they are moved or resized!
 192     XtSetMappedWhenManaged( w, domap );
 193
 194     return TRUE;
 195 }
 196
 197 // ----------------------------------------------------------------------------
 198 // constructors
 199 // ----------------------------------------------------------------------------
 200
 201 void wxWindow::Init()
 202 {
 203     // generic initializations first
 204     InitBase();
 205
 206     // Motif-specific
 207     m_needsRefresh = TRUE;
 208     m_mainWidget = (WXWidget) 0;
 209
 210     m_button1Pressed =
 211     m_button2Pressed =
 212     m_button3Pressed = FALSE;
 213
 214     m_winCaptured = FALSE;
 215
 216     m_isShown = TRUE;
 217     m_isBeingDeleted = FALSE;
 218
 219     m_hScrollBar =
 220     m_vScrollBar =
 221     m_borderWidget =
 222     m_scrolledWindow =
 223     m_drawingArea = (WXWidget) 0;
 224
 225     m_hScroll =
 226     m_vScroll = FALSE;
 227
 228     m_scrollPosX =
 229     m_scrollPosY = 0;
 230
 231     m_backingPixmap = (WXPixmap) 0;
 232     m_pixmapWidth =
 233     m_pixmapHeight = 0;
 234
 235     m_pixmapOffsetX =
 236     m_pixmapOffsetY = 0;
 237
 238     m_lastTS = 0;
 239     m_lastButton = 0;
 240     m_canAddEventHandler = FALSE;
 241 }
 242
 243 // real construction (Init() must have been called before!)
 244 bool wxWindow::Create(wxWindow *parent, wxWindowID id,
 245                       const wxPoint& pos,
 246                       const wxSize& size,
 247                       long style,
 248                       const wxString& name)
 249 {
 250     wxCHECK_MSG( parent, FALSE, "can't create wxWindow without parent" );
 251
 252     CreateBase(parent, id, pos, size, style, wxDefaultValidator, name);
 253
 254     parent->AddChild(this);
 255
 256     m_backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 257     m_foregroundColour = *wxBLACK;
 258
 259     //// TODO: we should probably optimize by only creating a
 260     //// a drawing area if we have one or more scrollbars (wxVSCROLL/wxHSCROLL).
 261     //// But for now, let's simplify things by always creating the
 262     //// drawing area, since otherwise the translations are different.
 263
 264     // New translations for getting mouse motion feedback
 265     static const String translations =
 266 "<Btn1Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 267 <Btn2Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 268 <Btn3Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 269 <BtnMotion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 270 <Btn1Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 271 <Btn2Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 272 <Btn3Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 273 <Btn1Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 274 <Btn2Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 275 <Btn3Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 276 <Motion>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 277 <EnterWindow>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 278 <LeaveWindow>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 279 <Key>: DrawingAreaInput()";
 280
 281     XtActionsRec actions[1];
 282     actions[0].string = "wxCanvasMotionEvent";
 283     actions[0].proc = (XtActionProc) wxCanvasMotionEvent;
 284     XtAppAddActions ((XtAppContext) wxTheApp->GetAppContext(), actions, 1);
 285
 286     Widget parentWidget = (Widget) parent->GetClientWidget();
 287
 288     if (style & wxSIMPLE_BORDER)
 289     {
 290         m_borderWidget = (WXWidget)XtVaCreateManagedWidget
 291                                    (
 292                                     "canvasBorder",
 293                                     xmFrameWidgetClass, parentWidget,
 294                                     XmNshadowType, XmSHADOW_IN,
 295                                     XmNshadowThickness, 1,
 296                                     NULL
 297                                    );
 298     } else if (style & wxSUNKEN_BORDER)
 299     {
 300         m_borderWidget = (WXWidget)XtVaCreateManagedWidget
 301                                    (
 302                                     "canvasBorder",
 303                                     xmFrameWidgetClass, parentWidget,
 304                                     XmNshadowType, XmSHADOW_IN,
 305                                     NULL
 306                                    );
 307     } else if (style & wxRAISED_BORDER)
 308     {
 309         m_borderWidget = (WXWidget)XtVaCreateManagedWidget
 310                                    (
 311                                     "canvasBorder",
 312                                     xmFrameWidgetClass, parentWidget,
 313                                     XmNshadowType, XmSHADOW_OUT,
 314                                     NULL
 315                                    );
 316     }
 317
 318     m_scrolledWindow = (WXWidget)XtVaCreateManagedWidget
 319                                  (
 320                                   "scrolledWindow",
 321                                   xmScrolledWindowWidgetClass,
 322                                   m_borderWidget ? (Widget) m_borderWidget
 323                                                  : parentWidget,
 324                                   XmNresizePolicy, XmRESIZE_NONE,
 325                                   XmNspacing, 0,
 326                                   XmNscrollingPolicy, XmAPPLICATION_DEFINED,
 327                                   //XmNscrollBarDisplayPolicy, XmAS_NEEDED,
 328                                   NULL
 329                                  );
 330
 331     XtTranslations ptr = XtParseTranslationTable(translations);
 332     m_drawingArea = (WXWidget)XtVaCreateWidget
 333                               (
 334                                name,
 335                                xmDrawingAreaWidgetClass, (Widget) m_scrolledWindow,
 336                                XmNunitType, XmPIXELS,
 337                                // XmNresizePolicy, XmRESIZE_ANY,
 338                                XmNresizePolicy, XmRESIZE_NONE,
 339                                XmNmarginHeight, 0,
 340                                XmNmarginWidth, 0,
 341                                XmNtranslations, ptr,
 342                                NULL
 343                               );
 344     XtFree((char *) ptr);
 345
 346 #if 0
 347     if (GetWindowStyleFlag() & wxOVERRIDE_KEY_TRANSLATIONS)
 348     {
 349         ptr = XtParseTranslationTable ("<Key>: DrawingAreaInput()");
 350         XtOverrideTranslations ((Widget) m_drawingArea, ptr);
 351         XtFree ((char *) ptr);
 352     }
 353 #endif // 0
 354
 355     wxAddWindowToTable((Widget) m_drawingArea, this);
 356     wxAddWindowToTable((Widget) m_scrolledWindow, this);
 357
 358     // This order is very important in Motif 1.2.1
 359     XtRealizeWidget ((Widget) m_scrolledWindow);
 360     XtRealizeWidget ((Widget) m_drawingArea);
 361     XtManageChild ((Widget) m_drawingArea);
 362
 363     ptr = XtParseTranslationTable("<Configure>: resize()");
 364     XtOverrideTranslations((Widget) m_drawingArea, ptr);
 365     XtFree ((char *) ptr);
 366
 367     XtAddCallback ((Widget) m_drawingArea, XmNexposeCallback, (XtCallbackProc) wxCanvasRepaintProc, (XtPointer) this);
 368     XtAddCallback ((Widget) m_drawingArea, XmNinputCallback, (XtCallbackProc) wxCanvasInputEvent, (XtPointer) this);
 369
 370     // TODO?
 371 #if 0
 372     display = XtDisplay (scrolledWindow);
 373     xwindow = XtWindow (drawingArea);
 374 #endif // 0
 375
 376     XtAddEventHandler(
 377                       (Widget)m_drawingArea,
 378                        PointerMotionHintMask | EnterWindowMask |
 379                        LeaveWindowMask | FocusChangeMask,
 380                        False,
 381                        (XtEventHandler) wxCanvasEnterLeave,
 382                        (XtPointer) this
 383                      );
 384
 385     // Scrolled widget needs to have its colour changed or we get a little blue
 386     // square where the scrollbars abutt
 387     wxColour backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 388     DoChangeBackgroundColour(m_scrolledWindow, backgroundColour, TRUE);
 389     DoChangeBackgroundColour(m_drawingArea, backgroundColour, TRUE);
 390
 391     XmScrolledWindowSetAreas(
 392                              (Widget)m_scrolledWindow,
 393                              (Widget) 0, (Widget) 0,
 394                              (Widget) m_drawingArea);
 395
 396 #if 0
 397     if (m_hScrollBar)
 398         XtRealizeWidget ((Widget) m_hScrollBar);
 399     if (m_vScrollBar)
 400         XtRealizeWidget ((Widget) m_vScrollBar);
 401 #endif // 0
 402
 403     // Without this, the cursor may not be restored properly (e.g. in splitter
 404     // sample).
 405     SetCursor(*wxSTANDARD_CURSOR);
 406     SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
 407     DoSetSizeIntr(pos.x, pos.y, size.x,size.y, wxSIZE_AUTO, TRUE);
 408     return TRUE;
 409 }
 410
 411 // Destructor
 412 wxWindow::~wxWindow()
 413 {
 414     if (g_captureWindow == this)
 415         g_captureWindow = NULL;
 416
 417     m_isBeingDeleted = TRUE;
 418
 419     // Motif-specific actions first
 420     WXWidget wMain = GetMainWidget();
 421     if ( wMain )
 422     {
 423         // Removes event handlers
 424         DetachWidget(wMain);
 425     }
 426
 427     ClearUpdateRects();
 428
 429     if ( m_parent )
 430         m_parent->RemoveChild( this );
 431
 432     // If m_drawingArea, we're a fully-fledged window with drawing area,
 433     // scrollbars etc. (what wxCanvas used to be)
 434     if ( m_drawingArea )
 435     {
 436         // Destroy children before destroying self
 437         DestroyChildren();
 438
 439         if (m_backingPixmap)
 440             XFreePixmap (XtDisplay ((Widget) GetMainWidget()), (Pixmap) m_backingPixmap);
 441
 442         Widget w = (Widget) m_drawingArea;
 443         wxDeleteWindowFromTable(w);
 444
 445         if (w)
 446         {
 447             XtDestroyWidget(w);
 448             m_drawingArea = (WXWidget) 0;
 449         }
 450
 451         // Only if we're _really_ a canvas (not a dialog box/panel)
 452         if (m_scrolledWindow)
 453         {
 454             wxDeleteWindowFromTable((Widget) m_scrolledWindow);
 455         }
 456
 457         if (m_hScrollBar)
 458         {
 459             wxDeleteWindowFromTable((Widget) m_hScrollBar);
 460             XtUnmanageChild((Widget) m_hScrollBar);
 461         }
 462         if (m_vScrollBar)
 463         {
 464             wxDeleteWindowFromTable((Widget) m_vScrollBar);
 465             XtUnmanageChild((Widget) m_vScrollBar);
 466         }
 467
 468         if (m_hScrollBar)
 469             XtDestroyWidget((Widget) m_hScrollBar);
 470         if (m_vScrollBar)
 471             XtDestroyWidget((Widget) m_vScrollBar);
 472
 473         UnmanageAndDestroy(m_scrolledWindow);
 474
 475         if (m_borderWidget)
 476         {
 477             XtDestroyWidget ((Widget) m_borderWidget);
 478             m_borderWidget = (WXWidget) 0;
 479         }
 480     }
 481     else // Why wasn't this here before? JACS 8/3/2000
 482         DestroyChildren();
 483
 484
 485     // Destroy the window
 486     if (GetMainWidget())
 487     {
 488         // If this line (XtDestroyWidget) causes a crash, you may comment it out.
 489         // Child widgets will get destroyed automatically when a frame
 490         // or dialog is destroyed, but before that you may get some memory
 491         // leaks and potential layout problems if you delete and then add
 492         // child windows.
 493
 494         // GRG, Feb/2000: commented this out when adding support for
 495         //   wxSCROLL[WIN]_THUMBRELEASE events. Also it was reported
 496         //   that this call crashed wxMotif under OS/2, so it seems
 497         //   that leaving it out is the right thing to do.
 498         // SN, Feb/2000: newgrid/griddemo shows why it is needed :-(
 499         XtDestroyWidget((Widget) GetMainWidget());
 500         SetMainWidget((WXWidget) NULL);
 501     }
 502 }
 503
 504 // ----------------------------------------------------------------------------
 505 // scrollbar management
 506 // ----------------------------------------------------------------------------
 507
 508 // Helper function
 509 void wxWindow::CreateScrollbar(wxOrientation orientation)
 510 {
 511     wxCHECK_RET( m_drawingArea, "this window can't have scrollbars" );
 512
 513     XtVaSetValues((Widget) m_scrolledWindow, XmNresizePolicy, XmRESIZE_NONE, NULL);
 514
 515     // Add scrollbars if required
 516     if (orientation == wxHORIZONTAL)
 517     {
 518         Widget hScrollBar = XtVaCreateManagedWidget ("hsb",
 519             xmScrollBarWidgetClass, (Widget) m_scrolledWindow,
 520             XmNorientation, XmHORIZONTAL,
 521             NULL);
 522         XtAddCallback (hScrollBar, XmNvalueChangedCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 523         XtAddCallback (hScrollBar, XmNdragCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 524         XtAddCallback (hScrollBar, XmNincrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 525         XtAddCallback (hScrollBar, XmNdecrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 526         XtAddCallback (hScrollBar, XmNpageIncrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 527         XtAddCallback (hScrollBar, XmNpageDecrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 528         XtAddCallback (hScrollBar, XmNtoTopCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 529         XtAddCallback (hScrollBar, XmNtoBottomCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 530
 531         XtVaSetValues (hScrollBar,
 532             XmNincrement, 1,
 533             XmNvalue, 0,
 534             NULL);
 535
 536         m_hScrollBar = (WXWidget) hScrollBar;
 537
 538         wxColour backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 539         DoChangeBackgroundColour(m_hScrollBar, backgroundColour, TRUE);
 540
 541         XtRealizeWidget(hScrollBar);
 542
 543         XtVaSetValues((Widget) m_scrolledWindow,
 544             XmNhorizontalScrollBar, (Widget) m_hScrollBar,
 545             NULL);
 546
 547         m_hScroll = TRUE;
 548
 549         wxAddWindowToTable( hScrollBar, this );
 550     }
 551
 552     if (orientation == wxVERTICAL)
 553     {
 554         Widget vScrollBar = XtVaCreateManagedWidget ("vsb",
 555             xmScrollBarWidgetClass, (Widget) m_scrolledWindow,
 556             XmNorientation, XmVERTICAL,
 557             NULL);
 558         XtAddCallback (vScrollBar, XmNvalueChangedCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 559         XtAddCallback (vScrollBar, XmNdragCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 560         XtAddCallback (vScrollBar, XmNincrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 561         XtAddCallback (vScrollBar, XmNdecrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 562         XtAddCallback (vScrollBar, XmNpageIncrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 563         XtAddCallback (vScrollBar, XmNpageDecrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 564         XtAddCallback (vScrollBar, XmNtoTopCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 565         XtAddCallback (vScrollBar, XmNtoBottomCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 566
 567         XtVaSetValues (vScrollBar,
 568             XmNincrement, 1,
 569             XmNvalue, 0,
 570             NULL);
 571
 572         m_vScrollBar = (WXWidget) vScrollBar;
 573         wxColour backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 574         DoChangeBackgroundColour(m_vScrollBar, backgroundColour, TRUE);
 575
 576         XtRealizeWidget(vScrollBar);
 577
 578         XtVaSetValues((Widget) m_scrolledWindow,
 579             XmNverticalScrollBar, (Widget) m_vScrollBar,
 580             NULL);
 581
 582         m_vScroll = TRUE;
 583
 584         wxAddWindowToTable( vScrollBar, this );
 585     }
 586
 587     XtVaSetValues((Widget) m_scrolledWindow, XmNresizePolicy, XmRESIZE_ANY, NULL);
 588 }
 589
 590 void wxWindow::DestroyScrollbar(wxOrientation orientation)
 591 {
 592     wxCHECK_RET( m_drawingArea, "this window can't have scrollbars" );
 593
 594     XtVaSetValues((Widget) m_scrolledWindow, XmNresizePolicy, XmRESIZE_NONE, NULL);
 595     // Add scrollbars if required
 596     if (orientation == wxHORIZONTAL)
 597     {
 598         if (m_hScrollBar)
 599         {
 600             wxDeleteWindowFromTable((Widget)m_hScrollBar);
 601             XtDestroyWidget((Widget) m_hScrollBar);
 602         }
 603         m_hScrollBar = (WXWidget) 0;
 604         m_hScroll = FALSE;
 605
 606         XtVaSetValues((Widget) m_scrolledWindow,
 607             XmNhorizontalScrollBar, (Widget) 0,
 608             NULL);
 609
 610     }
 611
 612     if (orientation == wxVERTICAL)
 613     {
 614         if (m_vScrollBar)
 615         {
 616             wxDeleteWindowFromTable((Widget)m_vScrollBar);
 617             XtDestroyWidget((Widget) m_vScrollBar);
 618         }
 619         m_vScrollBar = (WXWidget) 0;
 620         m_vScroll = FALSE;
 621
 622         XtVaSetValues((Widget) m_scrolledWindow,
 623             XmNverticalScrollBar, (Widget) 0,
 624             NULL);
 625
 626     }
 627     XtVaSetValues((Widget) m_scrolledWindow, XmNresizePolicy, XmRESIZE_ANY, NULL);
 628 }
 629
 630 // ---------------------------------------------------------------------------
 631 // basic operations
 632 // ---------------------------------------------------------------------------
 633
 634 void wxWindow::SetFocus()
 635 {
 636     Widget wMain = (Widget) GetMainWidget();
 637     XmProcessTraversal(wMain, XmTRAVERSE_CURRENT);
 638     XmProcessTraversal((Widget) GetMainWidget(), XmTRAVERSE_CURRENT);
 639 }
 640
 641 // Get the window with the focus
 642 wxWindow *wxWindowBase::FindFocus()
 643 {
 644     // TODO Problems:
 645     // (1) Can there be multiple focussed widgets in an application?
 646     // In which case we need to find the top-level window that's
 647     // currently active.
 648     // (2) The widget with the focus may not be in the widget table
 649     // depending on which widgets I put in the table
 650     wxWindow *winFocus = (wxWindow *)NULL;
 651     for ( wxWindowList::Node *node = wxTopLevelWindows.GetFirst();
 652           node;
 653           node = node->GetNext() )
 654     {
 655         wxWindow *win = node->GetData();
 656
 657         Widget w = XmGetFocusWidget ((Widget) win->GetTopWidget());
 658
 659         if (w != (Widget) NULL)
 660         {
 661             winFocus = wxGetWindowFromTable(w);
 662             if ( winFocus )
 663                 break;
 664         }
 665     }
 666
 667     return winFocus;
 668 }
 669
 670 bool wxWindow::Enable(bool enable)
 671 {
 672     if ( !wxWindowBase::Enable(enable) )
 673         return FALSE;
 674
 675     Widget wMain = (Widget)GetMainWidget();
 676     if ( wMain )
 677     {
 678         XtSetSensitive(wMain, enable);
 679         XmUpdateDisplay(wMain);
 680     }
 681
 682     return TRUE;
 683 }
 684
 685 bool wxWindow::Show(bool show)
 686 {
 687     if ( !wxWindowBase::Show(show) )
 688         return FALSE;
 689
 690     if (m_borderWidget || m_scrolledWindow)
 691     {
 692         MapOrUnmap(m_drawingArea, show);
 693         MapOrUnmap(m_borderWidget ? m_borderWidget : m_scrolledWindow, show);
 694     }
 695     else
 696     {
 697         if ( !MapOrUnmap(GetTopWidget(), show) )
 698             MapOrUnmap(GetMainWidget(), show);
 699     }
 700
 701 #if 0
 702     Window xwin = (Window) GetXWindow();
 703     Display *xdisp = (Display*) GetXDisplay();
 704     if (show)
 705         XMapWindow(xdisp, xwin);
 706     else
 707         XUnmapWindow(xdisp, xwin);
 708 #endif
 709
 710     return TRUE;
 711 }
 712
 713 // Raise the window to the top of the Z order
 714 void wxWindow::Raise()
 715 {
 716     Widget wTop = (Widget) GetTopWidget();
 717     Window window = XtWindow(wTop);
 718     XRaiseWindow(XtDisplay(wTop), window);
 719 }
 720
 721 // Lower the window to the bottom of the Z order
 722 void wxWindow::Lower()
 723 {
 724     Widget wTop = (Widget) GetTopWidget();
 725     Window window = XtWindow(wTop);
 726     XLowerWindow(XtDisplay(wTop), window);
 727 }
 728
 729 void wxWindow::SetTitle(const wxString& title)
 730 {
 731     XtVaSetValues((Widget)GetMainWidget(), XmNtitle, title.c_str(), NULL);
 732 }
 733
 734 wxString wxWindow::GetTitle() const
 735 {
 736     char *title;
 737     XtVaGetValues((Widget)GetMainWidget(), XmNtitle, &title, NULL);
 738
 739     return wxString(title);
 740 }
 741
 742 void wxWindow::DoCaptureMouse()
 743 {
 744     g_captureWindow = this;
 745     if ( m_winCaptured )
 746         return;
 747
 748     Widget wMain = (Widget)GetMainWidget();
 749     if ( wMain )
 750         XtAddGrab(wMain, TRUE, FALSE);
 751
 752     m_winCaptured = TRUE;
 753 }
 754
 755 void wxWindow::DoReleaseMouse()
 756 {
 757     g_captureWindow = NULL;
 758     if ( !m_winCaptured )
 759         return;
 760
 761     Widget wMain = (Widget)GetMainWidget();
 762     if ( wMain )
 763         XtRemoveGrab(wMain);
 764
 765     m_winCaptured = FALSE;
 766 }
 767
 768 bool wxWindow::SetFont(const wxFont& font)
 769 {
 770     if ( !wxWindowBase::SetFont(font) )
 771     {
 772         // nothing to do
 773         return FALSE;
 774     }
 775
 776     ChangeFont();
 777
 778     return TRUE;
 779 }
 780
 781 bool wxWindow::SetCursor(const wxCursor& cursor)
 782 {
 783     if ( !wxWindowBase::SetCursor(cursor) )
 784     {
 785         // no change
 786         return FALSE;
 787     }
 788
 789     //    wxASSERT_MSG( m_cursor.Ok(),
 790     //                  wxT("cursor must be valid after call to the base version"));
 791     wxCursor* cursor2 = NULL;
 792     if (m_cursor.Ok())
 793         cursor2 = & m_cursor;
 794     else
 795         cursor2 = wxSTANDARD_CURSOR;
 796
 797     WXDisplay *dpy = GetXDisplay();
 798     WXCursor x_cursor = cursor2->GetXCursor(dpy);
 799
 800     Widget w = (Widget) GetMainWidget();
 801     Window win = XtWindow(w);
 802     XDefineCursor((Display*) dpy, win, (Cursor) x_cursor);
 803
 804     return TRUE;
 805 }
 806
 807 // Coordinates relative to the window
 808 void wxWindow::WarpPointer (int x, int y)
 809 {
 810     Widget wClient = (Widget)GetClientWidget();
 811
 812     XWarpPointer(XtDisplay(wClient), None, XtWindow(wClient), 0, 0, 0, 0, x, y);
 813 }
 814
 815 // ---------------------------------------------------------------------------
 816 // scrolling stuff
 817 // ---------------------------------------------------------------------------
 818
 819 int wxWindow::GetScrollPos(int orient) const
 820 {
 821     if (orient == wxHORIZONTAL)
 822         return m_scrollPosX;
 823     else
 824         return m_scrollPosY;
 825
 826 #if 0
 827     Widget scrollBar = (Widget) ((orient == wxHORIZONTAL) ? m_hScrollBar : m_vScrollBar);
 828     if (scrollBar)
 829     {
 830         int pos;
 831         XtVaGetValues(scrollBar, XmNvalue, &pos, NULL);
 832         return pos;
 833     }
 834     else
 835         return 0;
 836 #endif // 0
 837 }
 838
 839 // This now returns the whole range, not just the number of positions that we
 840 // can scroll.
 841 int wxWindow::GetScrollRange(int orient) const
 842 {
 843     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 844     wxCHECK_MSG( scrollBar, 0, "no such scrollbar" );
 845
 846     int range = 0;
 847     if (scrollBar)
 848         XtVaGetValues(scrollBar, XmNmaximum, &range, NULL);
 849     return range;
 850 }
 851
 852 int wxWindow::GetScrollThumb(int orient) const
 853 {
 854     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 855     wxCHECK_MSG( scrollBar, 0, "no such scrollbar" );
 856
 857     int thumb;
 858     XtVaGetValues(scrollBar, XmNsliderSize, &thumb, NULL);
 859     return thumb;
 860 }
 861
 862 void wxWindow::SetScrollPos(int orient, int pos, bool WXUNUSED(refresh))
 863 {
 864     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 865
 866     if ( scrollBar )
 867     {
 868         XtVaSetValues (scrollBar, XmNvalue, pos, NULL);
 869     }
 870
 871     SetInternalScrollPos((wxOrientation)orient, pos);
 872 }
 873
 874 // New function that will replace some of the above.
 875 void wxWindow::SetScrollbar(int orient, int pos, int thumbVisible,
 876                             int range, bool WXUNUSED(refresh))
 877 {
 878     int oldW, oldH;
 879     GetSize(& oldW, & oldH);
 880
 881     if (range == 0)
 882         range = 1;
 883     if (thumbVisible == 0)
 884         thumbVisible = 1;
 885
 886     if (thumbVisible > range)
 887         thumbVisible = range;
 888
 889     // Save the old state to see if it changed
 890     WXWidget oldScrollBar = GetScrollbar((wxOrientation)orient);
 891
 892     if (orient == wxHORIZONTAL)
 893     {
 894         if (thumbVisible == range)
 895         {
 896             if (m_hScrollBar)
 897                 DestroyScrollbar(wxHORIZONTAL);
 898         }
 899         else
 900         {
 901             if (!m_hScrollBar)
 902                 CreateScrollbar(wxHORIZONTAL);
 903         }
 904     }
 905     if (orient == wxVERTICAL)
 906     {
 907         if (thumbVisible == range)
 908         {
 909             if (m_vScrollBar)
 910                 DestroyScrollbar(wxVERTICAL);
 911         }
 912         else
 913         {
 914             if (!m_vScrollBar)
 915                 CreateScrollbar(wxVERTICAL);
 916         }
 917     }
 918     WXWidget newScrollBar =  GetScrollbar((wxOrientation)orient);
 919
 920     if (oldScrollBar != newScrollBar)
 921     {
 922         // This is important! Without it, scrollbars misbehave badly.
 923         XtUnrealizeWidget((Widget) m_scrolledWindow);
 924         XmScrolledWindowSetAreas ((Widget) m_scrolledWindow, (Widget) m_hScrollBar, (Widget) m_vScrollBar, (Widget) m_drawingArea);
 925         XtRealizeWidget((Widget) m_scrolledWindow);
 926         XtManageChild((Widget) m_scrolledWindow);
 927     }
 928
 929     if (newScrollBar)
 930     {
 931         XtVaSetValues((Widget) newScrollBar,
 932         XmNvalue, pos,
 933         XmNminimum, 0,
 934         XmNmaximum, range,
 935         XmNsliderSize, thumbVisible,
 936         NULL);
 937     }
 938
 939     SetInternalScrollPos((wxOrientation)orient, pos);
 940
 941     int newW, newH;
 942     GetSize(& newW, & newH);
 943
 944     // Adjusting scrollbars can resize the canvas accidentally
 945     if (newW != oldW || newH != oldH)
 946         SetSize(-1, -1, oldW, oldH);
 947 }
 948
 949 // Does a physical scroll
 950 void wxWindow::ScrollWindow(int dx, int dy, const wxRect *rect)
 951 {
 952     int x, y, w, h;
 953     if (rect)
 954     {
 955         // Use specified rectangle
 956         x = rect->x; y = rect->y; w = rect->width; h = rect->height;
 957     }
 958     else
 959     {
 960         // Use whole client area
 961         x = 0; y = 0;
 962         GetClientSize(& w, & h);
 963     }
 964
 965     wxWindowList::Node *cnode = m_children.GetFirst();
 966     while (cnode)
 967     {
 968         wxWindow *child = cnode->GetData();
 969         int sx = 0;
 970         int sy = 0;
 971         child->GetSize( &sx, &sy );
 972         wxPoint pos( child->GetPosition() );
 973         child->SetSize( pos.x + dx, pos.y + dy, sx, sy, wxSIZE_ALLOW_MINUS_ONE );
 974         cnode = cnode->GetNext();
 975     }
 976
 977     int x1 = (dx >= 0) ? x : x - dx;
 978     int y1 = (dy >= 0) ? y : y - dy;
 979     int w1 = w - abs(dx);
 980     int h1 = h - abs(dy);
 981     int x2 = (dx >= 0) ? x + dx : x;
 982     int y2 = (dy >= 0) ? y + dy : y;
 983
 984     wxClientDC dc(this);
 985
 986     dc.SetLogicalFunction (wxCOPY);
 987
 988     Widget widget = (Widget) GetMainWidget();
 989     Window window = XtWindow(widget);
 990     Display* display = XtDisplay(widget);
 991
 992     XCopyArea(display, window, window, (GC) dc.GetGC(),
 993               x1, y1, w1, h1, x2, y2);
 994
 995     dc.SetAutoSetting(TRUE);
 996     wxBrush brush(GetBackgroundColour(), wxSOLID);
 997     dc.SetBrush(brush); // FIXME: needed?
 998
 999     // We'll add rectangles to the list of update rectangles according to which
1000     // bits we've exposed.
1001     wxList updateRects;
1002
1003     if (dx > 0)
1004     {
1005         wxRect *rect = new wxRect;
1006         rect->x = x;
1007         rect->y = y;
1008         rect->width = dx;
1009         rect->height = h;
1010
1011         XFillRectangle(display, window,
1012             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
1013
1014         rect->x = rect->x;
1015         rect->y = rect->y;
1016         rect->width = rect->width;
1017         rect->height = rect->height;
1018
1019         updateRects.Append((wxObject*) rect);
1020     }
1021     else if (dx < 0)
1022     {
1023         wxRect *rect = new wxRect;
1024
1025         rect->x = x + w + dx;
1026         rect->y = y;
1027         rect->width = -dx;
1028         rect->height = h;
1029
1030         XFillRectangle(display, window,
1031             (GC) dc.GetGC(), rect->x, rect->y, rect->width,
1032             rect->height);
1033
1034         rect->x = rect->x;
1035         rect->y = rect->y;
1036         rect->width = rect->width;
1037         rect->height = rect->height;
1038
1039         updateRects.Append((wxObject*) rect);
1040     }
1041     if (dy > 0)
1042     {
1043         wxRect *rect = new wxRect;
1044
1045         rect->x = x;
1046         rect->y = y;
1047         rect->width = w;
1048         rect->height = dy;
1049
1050         XFillRectangle(display, window,
1051             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
1052
1053         rect->x = rect->x;
1054         rect->y = rect->y;
1055         rect->width = rect->width;
1056         rect->height = rect->height;
1057
1058         updateRects.Append((wxObject*) rect);
1059     }
1060     else if (dy < 0)
1061     {
1062         wxRect *rect = new wxRect;
1063
1064         rect->x = x;
1065         rect->y = y + h + dy;
1066         rect->width = w;
1067         rect->height = -dy;
1068
1069         XFillRectangle(display, window,
1070             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
1071
1072         rect->x = rect->x;
1073         rect->y = rect->y;
1074         rect->width = rect->width;
1075         rect->height = rect->height;
1076
1077         updateRects.Append((wxObject*) rect);
1078     }
1079     dc.SetBrush(wxNullBrush);
1080
1081     // Now send expose events
1082
1083     wxList::Node* node = updateRects.GetFirst();
1084     while (node)
1085     {
1086         wxRect* rect = (wxRect*) node->GetData();
1087         XExposeEvent event;
1088
1089         event.type = Expose;
1090         event.display = display;
1091         event.send_event = True;
1092         event.window = window;
1093
1094         event.x = rect->x;
1095         event.y = rect->y;
1096         event.width = rect->width;
1097         event.height = rect->height;
1098
1099         event.count = 0;
1100
1101         XSendEvent(display, window, False, ExposureMask, (XEvent *)&event);
1102
1103         node = node->GetNext();
1104
1105     }
1106
1107     // Delete the update rects
1108     node = updateRects.GetFirst();
1109     while (node)
1110     {
1111         wxRect* rect = (wxRect*) node->GetData();
1112         delete rect;
1113         node = node->GetNext();
1114     }
1115
1116     XmUpdateDisplay((Widget) GetMainWidget());
1117 }
1118
1119 // ---------------------------------------------------------------------------
1120 // drag and drop
1121 // ---------------------------------------------------------------------------
1122
1123 #if wxUSE_DRAG_AND_DROP
1124
1125 void wxWindow::SetDropTarget(wxDropTarget * WXUNUSED(pDropTarget))
1126 {
1127     // TODO
1128 }
1129
1130 #endif
1131
1132 // Old style file-manager drag&drop
1133 void wxWindow::DragAcceptFiles(bool WXUNUSED(accept))
1134 {
1135     // TODO
1136 }
1137
1138 // ----------------------------------------------------------------------------
1139 // tooltips
1140 // ----------------------------------------------------------------------------
1141
1142 #if wxUSE_TOOLTIPS
1143
1144 void wxWindow::DoSetToolTip(wxToolTip * WXUNUSED(tooltip))
1145 {
1146     // TODO
1147 }
1148
1149 #endif // wxUSE_TOOLTIPS
1150
1151 // ----------------------------------------------------------------------------
1152 // popup menus
1153 // ----------------------------------------------------------------------------
1154
1155 #if wxUSE_MENUS
1156
1157 bool wxWindow::DoPopupMenu(wxMenu *menu, int x, int y)
1158 {
1159     Widget widget = (Widget) GetMainWidget();
1160
1161     /* The menuId field seems to be usused, so we'll use it to
1162     indicate whether a menu is popped up or not:
1163     0: Not currently created as a popup
1164     -1: Created as a popup, but not active
1165     1: Active popup.
1166     */
1167
1168     if (menu->GetParent() && (menu->GetId() != -1))
1169         return FALSE;
1170
1171     if (menu->GetMainWidget())
1172     {
1173         menu->DestroyMenu(TRUE);
1174     }
1175
1176     menu->SetId(1); /* Mark as popped-up */
1177     menu->CreateMenu(NULL, widget, menu);
1178     menu->SetInvokingWindow(this);
1179
1180     menu->UpdateUI();
1181
1182     //  menu->SetParent(parent);
1183     //  parent->children->Append(menu);  // Store menu for later deletion
1184
1185     Widget menuWidget = (Widget) menu->GetMainWidget();
1186
1187     int rootX = 0;
1188     int rootY = 0;
1189
1190     int deviceX = x;
1191     int deviceY = y;
1192     /*
1193     if (this->IsKindOf(CLASSINFO(wxCanvas)))
1194     {
1195     wxCanvas *canvas = (wxCanvas *) this;
1196     deviceX = canvas->GetDC ()->LogicalToDeviceX (x);
1197     deviceY = canvas->GetDC ()->LogicalToDeviceY (y);
1198     }
1199     */
1200
1201     Display *display = XtDisplay (widget);
1202     Window rootWindow = RootWindowOfScreen (XtScreen((Widget)widget));
1203     Window thisWindow = XtWindow (widget);
1204     Window childWindow;
1205     XTranslateCoordinates (display, thisWindow, rootWindow, (int) deviceX, (int) deviceY,
1206         &rootX, &rootY, &childWindow);
1207
1208     XButtonPressedEvent event;
1209     event.type = ButtonPress;
1210     event.button = 1;
1211
1212     event.x = deviceX;
1213     event.y = deviceY;
1214
1215     event.x_root = rootX;
1216     event.y_root = rootY;
1217
1218     XmMenuPosition (menuWidget, &event);
1219     XtManageChild (menuWidget);
1220
1221     // The ID of a pop-up menu is 1 when active, and is set to 0 by the
1222     // idle-time destroy routine.
1223     // Waiting until this ID changes causes this function to block until
1224     // the menu has been dismissed and the widgets cleaned up.
1225     // In other words, once this routine returns, it is safe to delete
1226     // the menu object.
1227     // Ian Brown <ian.brown@printsoft.de>
1228
1229     wxEventLoop evtLoop;
1230
1231     while (menu->GetId() == 1)
1232     {
1233         wxDoEventLoopIteration( evtLoop );
1234     }
1235
1236     return TRUE;
1237 }
1238
1239 #endif
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 <= 0 )
1349         width = oldW;
1350     if ( height <= 0 )
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 }
1388
1389 void wxWindow::DoSetClientSize(int width, int height)
1390 {
1391     if (m_drawingArea)
1392     {
1393         CanvasSetClientSize(width, height);
1394         return;
1395     }
1396
1397     Widget widget = (Widget) GetTopWidget();
1398
1399     if (width > -1)
1400         XtVaSetValues(widget, XmNwidth, width, NULL);
1401     if (height > -1)
1402         XtVaSetValues(widget, XmNheight, height, NULL);
1403
1404     wxSizeEvent sizeEvent(wxSize(width, height), GetId());
1405     sizeEvent.SetEventObject(this);
1406
1407     GetEventHandler()->ProcessEvent(sizeEvent);
1408 }
1409
1410 // For implementation purposes - sometimes decorations make the client area
1411 // smaller
1412 wxPoint wxWindow::GetClientAreaOrigin() const
1413 {
1414     return wxPoint(0, 0);
1415 }
1416
1417 void wxWindow::SetSizeHints(int minW, int minH, int maxW, int maxH, int incW, int incH)
1418 {
1419     m_minWidth = minW;
1420     m_minHeight = minH;
1421     m_maxWidth = maxW;
1422     m_maxHeight = maxH;
1423
1424     wxFrame *frame = wxDynamicCast(this, wxFrame);
1425     if ( !frame )
1426     {
1427         // TODO what about dialogs?
1428         return;
1429     }
1430
1431     Widget widget = (Widget) frame->GetShellWidget();
1432
1433     if (minW > -1)
1434         XtVaSetValues(widget, XmNminWidth, minW, NULL);
1435     if (minH > -1)
1436         XtVaSetValues(widget, XmNminHeight, minH, NULL);
1437     if (maxW > -1)
1438         XtVaSetValues(widget, XmNmaxWidth, maxW, NULL);
1439     if (maxH > -1)
1440         XtVaSetValues(widget, XmNmaxHeight, maxH, NULL);
1441     if (incW > -1)
1442         XtVaSetValues(widget, XmNwidthInc, incW, NULL);
1443     if (incH > -1)
1444         XtVaSetValues(widget, XmNheightInc, incH, NULL);
1445 }
1446
1447 void wxWindow::DoMoveWindow(int x, int y, int width, int height)
1448 {
1449     // see the top of the file, near DoSetSizeIntr
1450     if (m_drawingArea)
1451         return;
1452
1453     if (width == 0)
1454         width = 1;
1455     if (height == 0)
1456         height = 1;
1457
1458     XtVaSetValues((Widget)GetTopWidget(),
1459                   XmNx, x,
1460                   XmNy, y,
1461                   XmNwidth, width,
1462                   XmNheight, height,
1463                   NULL);
1464 }
1465
1466 // ---------------------------------------------------------------------------
1467 // text metrics
1468 // ---------------------------------------------------------------------------
1469
1470 int wxWindow::GetCharHeight() const
1471 {
1472     wxCHECK_MSG( m_font.Ok(), 0, "valid window font needed" );
1473
1474     WXFontStructPtr pFontStruct = m_font.GetFontStruct(1.0, GetXDisplay());
1475
1476     int direction, ascent, descent;
1477     XCharStruct overall;
1478     XTextExtents ((XFontStruct*) pFontStruct, "x", 1, &direction, &ascent,
1479         &descent, &overall);
1480
1481     //  return (overall.ascent + overall.descent);
1482     return (ascent + descent);
1483 }
1484
1485 int wxWindow::GetCharWidth() const
1486 {
1487     wxCHECK_MSG( m_font.Ok(), 0, "valid window font needed" );
1488
1489     WXFontStructPtr pFontStruct = m_font.GetFontStruct(1.0, GetXDisplay());
1490
1491     int direction, ascent, descent;
1492     XCharStruct overall;
1493     XTextExtents ((XFontStruct*) pFontStruct, "x", 1, &direction, &ascent,
1494         &descent, &overall);
1495
1496     return overall.width;
1497 }
1498
1499 void wxWindow::GetTextExtent(const wxString& string,
1500                              int *x, int *y,
1501                              int *descent, int *externalLeading,
1502                              const wxFont *theFont) const
1503 {
1504     wxFont *fontToUse = (wxFont *)theFont;
1505     if (!fontToUse)
1506         fontToUse = (wxFont *) & m_font;
1507
1508     wxCHECK_RET( fontToUse->Ok(), "valid window font needed" );
1509
1510     WXFontStructPtr pFontStruct = fontToUse->GetFontStruct(1.0, GetXDisplay());
1511
1512     int direction, ascent, descent2;
1513     XCharStruct overall;
1514     int slen = string.Len();
1515
1516 #if 0
1517     if (use16)
1518         XTextExtents16((XFontStruct*) pFontStruct, (XChar2b *) (char*) (const char*) string, slen, &direction,
1519         &ascent, &descent2, &overall);
1520 #endif
1521
1522     XTextExtents((XFontStruct*) pFontStruct, string, slen,
1523                  &direction, &ascent, &descent2, &overall);
1524
1525     if ( x )
1526         *x = (overall.width);
1527     if ( y )
1528         *y = (ascent + descent2);
1529     if (descent)
1530         *descent = descent2;
1531     if (externalLeading)
1532         *externalLeading = 0;
1533
1534 }
1535
1536 // ----------------------------------------------------------------------------
1537 // painting
1538 // ----------------------------------------------------------------------------
1539
1540 void wxWindow::Refresh(bool eraseBack, const wxRect *rect)
1541 {
1542     m_needsRefresh = TRUE;
1543     Display *display = XtDisplay((Widget) GetMainWidget());
1544     Window thisWindow = XtWindow((Widget) GetMainWidget());
1545
1546     XExposeEvent dummyEvent;
1547     int width, height;
1548     GetSize(&width, &height);
1549
1550     dummyEvent.type = Expose;
1551     dummyEvent.display = display;
1552     dummyEvent.send_event = True;
1553     dummyEvent.window = thisWindow;
1554     if (rect)
1555     {
1556         dummyEvent.x = rect->x;
1557         dummyEvent.y = rect->y;
1558         dummyEvent.width = rect->width;
1559         dummyEvent.height = rect->height;
1560     }
1561     else
1562     {
1563         dummyEvent.x = 0;
1564         dummyEvent.y = 0;
1565         dummyEvent.width = width;
1566         dummyEvent.height = height;
1567     }
1568     dummyEvent.count = 0;
1569
1570     if (eraseBack)
1571     {
1572         wxClientDC dc(this);
1573         wxBrush backgroundBrush(GetBackgroundColour(), wxSOLID);
1574         dc.SetBackground(backgroundBrush);
1575         if (rect)
1576             dc.Clear(*rect);
1577         else
1578             dc.Clear();
1579     }
1580
1581     XSendEvent(display, thisWindow, False, ExposureMask, (XEvent *)&dummyEvent);
1582 }
1583
1584 void wxWindow::Clear()
1585 {
1586     wxClientDC dc(this);
1587     wxBrush brush(GetBackgroundColour(), wxSOLID);
1588     dc.SetBackground(brush);
1589     dc.Clear();
1590 }
1591
1592 void wxWindow::ClearUpdateRects()
1593 {
1594     wxRectList::Node* node = m_updateRects.GetFirst();
1595     while (node)
1596     {
1597         wxRect* rect = node->GetData();
1598         delete rect;
1599         node = node->GetNext();
1600     }
1601
1602     m_updateRects.Clear();
1603 }
1604
1605 void wxWindow::DoPaint()
1606 {
1607     //TODO : make a temporary gc so we can do the XCopyArea below
1608     if (m_backingPixmap && !m_needsRefresh)
1609     {
1610       wxPaintDC dc(this);
1611
1612       GC tempGC = (GC) dc.GetBackingGC();
1613
1614       Widget widget = (Widget) GetMainWidget();
1615
1616       int scrollPosX = 0;
1617       int scrollPosY = 0;
1618
1619       // We have to test whether it's a wxScrolledWindow (hack!) because
1620       // otherwise we don't know how many pixels have been scrolled. We might
1621       // solve this in the future by defining virtual wxWindow functions to get
1622       // the scroll position in pixels. Or, each kind of scrolled window has to
1623       // implement backing stores itself, using generic wxWindows code.
1624       wxScrolledWindow* scrolledWindow = wxDynamicCast(this, wxScrolledWindow);
1625       if ( scrolledWindow )
1626       {
1627           int x, y;
1628           scrolledWindow->CalcScrolledPosition(0, 0, &x, &y);
1629
1630           scrollPosX = - x;
1631           scrollPosY = - y;
1632       }
1633
1634       // TODO: This could be optimized further by only copying the areas in the
1635       //       current update region.
1636
1637       // Only blit the part visible in the client area. The backing pixmap
1638       // always starts at 0, 0 but we may be looking at only a portion of it.
1639       wxSize clientArea = GetClientSize();
1640       int toBlitX = m_pixmapWidth - scrollPosX;
1641       int toBlitY = m_pixmapHeight - scrollPosY;
1642
1643       // Copy whichever is samller, the amount of pixmap we have to copy,
1644       // or the size of the client area.
1645       toBlitX = wxMin(toBlitX, clientArea.x);
1646       toBlitY = wxMin(toBlitY, clientArea.y);
1647
1648       // Make sure we're not negative
1649       toBlitX = wxMax(0, toBlitX);
1650       toBlitY = wxMax(0, toBlitY);
1651
1652       XCopyArea
1653       (
1654        XtDisplay(widget),
1655        (Pixmap) m_backingPixmap,
1656        XtWindow (widget),
1657        tempGC,
1658        scrollPosX, scrollPosY, // Start at the scroll position
1659        toBlitX, toBlitY,       // How much of the pixmap to copy
1660        0, 0                    // Destination
1661       );
1662     }
1663     else
1664     {
1665         // Set an erase event first
1666         wxEraseEvent eraseEvent(GetId());
1667         eraseEvent.SetEventObject(this);
1668         GetEventHandler()->ProcessEvent(eraseEvent);
1669
1670         wxPaintEvent event(GetId());
1671         event.SetEventObject(this);
1672         GetEventHandler()->ProcessEvent(event);
1673
1674         m_needsRefresh = FALSE;
1675     }
1676 }
1677
1678 // ----------------------------------------------------------------------------
1679 // event handlers
1680 // ----------------------------------------------------------------------------
1681
1682 // Responds to colour changes: passes event on to children.
1683 void wxWindow::OnSysColourChanged(wxSysColourChangedEvent& event)
1684 {
1685     wxWindowList::Node *node = GetChildren().GetFirst();
1686     while ( node )
1687     {
1688         // Only propagate to non-top-level windows
1689         wxWindow *win = node->GetData();
1690         if ( win->GetParent() )
1691         {
1692             wxSysColourChangedEvent event2;
1693             event.m_eventObject = win;
1694             win->GetEventHandler()->ProcessEvent(event2);
1695         }
1696
1697         node = node->GetNext();
1698     }
1699 }
1700
1701 void wxWindow::OnIdle(wxIdleEvent& WXUNUSED(event))
1702 {
1703     // This calls the UI-update mechanism (querying windows for
1704     // menu/toolbar/control state information)
1705     UpdateWindowUI();
1706 }
1707
1708 // ----------------------------------------------------------------------------
1709 // accelerators
1710 // ----------------------------------------------------------------------------
1711
1712 bool wxWindow::ProcessAccelerator(wxKeyEvent& event)
1713 {
1714 #if wxUSE_ACCEL
1715     if (!m_acceleratorTable.Ok())
1716         return FALSE;
1717
1718     int count = m_acceleratorTable.GetCount();
1719     wxAcceleratorEntry* entries = m_acceleratorTable.GetEntries();
1720     int i;
1721     for (i = 0; i < count; i++)
1722     {
1723         wxAcceleratorEntry* entry = & (entries[i]);
1724         if (entry->MatchesEvent(event))
1725         {
1726             // Bingo, we have a match. Now find a control that matches the
1727             // entry command id.
1728
1729             // Need to go up to the top of the window hierarchy, since it might
1730             // be e.g. a menu item
1731             wxWindow* parent = this;
1732             while ( parent && !parent->IsTopLevel() )
1733                 parent = parent->GetParent();
1734
1735             if (!parent)
1736                 return FALSE;
1737
1738             wxFrame* frame = wxDynamicCast(parent, wxFrame);
1739             if ( frame )
1740             {
1741 #if wxUSE_MENUS
1742                 // Try for a menu command
1743                 if (frame->GetMenuBar())
1744                 {
1745                     wxMenuItem* item = frame->GetMenuBar()->FindItem(entry->GetCommand());
1746                     if (item)
1747                     {
1748                         wxCommandEvent commandEvent(wxEVT_COMMAND_MENU_SELECTED, entry->GetCommand());
1749                         commandEvent.SetEventObject(frame);
1750
1751                         // If ProcessEvent returns TRUE (it was handled), then
1752                         // the calling code will skip the event handling.
1753                         return frame->GetEventHandler()->ProcessEvent(commandEvent);
1754                     }
1755                 }
1756 #endif
1757             }
1758
1759             // Find a child matching the command id
1760             wxWindow* child = parent->FindWindow(entry->GetCommand());
1761
1762             // No such child
1763             if (!child)
1764                 return FALSE;
1765
1766             // Now we process those kinds of windows that we can.
1767             // For now, only buttons.
1768             if ( wxDynamicCast(child, wxButton) )
1769             {
1770                 wxCommandEvent commandEvent (wxEVT_COMMAND_BUTTON_CLICKED, child->GetId());
1771                 commandEvent.SetEventObject(child);
1772                 return child->GetEventHandler()->ProcessEvent(commandEvent);
1773             }
1774
1775             return FALSE;
1776         } // matches event
1777     }// for
1778 #endif
1779
1780     // We didn't match the key event against an accelerator.
1781     return FALSE;
1782 }
1783
1784 // ============================================================================
1785 // Motif-specific stuff from here on
1786 // ============================================================================
1787
1788 // ----------------------------------------------------------------------------
1789 // function which maintain the global hash table mapping Widgets to wxWindows
1790 // ----------------------------------------------------------------------------
1791
1792 bool wxAddWindowToTable(Widget w, wxWindow *win)
1793 {
1794     wxWindow *oldItem = NULL;
1795     if ((oldItem = (wxWindow *)wxWidgetHashTable->Get ((long) w)))
1796     {
1797         wxLogDebug("Widget table clash: new widget is %ld, %s",
1798                    (long)w, win->GetClassInfo()->GetClassName());
1799         return FALSE;
1800     }
1801
1802     wxWidgetHashTable->Put((long) w, win);
1803
1804     wxLogTrace("widget", "Widget 0x%p <-> window %p (%s)",
1805                (WXWidget)w, win, win->GetClassInfo()->GetClassName());
1806
1807     return TRUE;
1808 }
1809
1810 wxWindow *wxGetWindowFromTable(Widget w)
1811 {
1812     return (wxWindow *)wxWidgetHashTable->Get((long) w);
1813 }
1814
1815 void wxDeleteWindowFromTable(Widget w)
1816 {
1817     wxWidgetHashTable->Delete((long)w);
1818 }
1819
1820 // ----------------------------------------------------------------------------
1821 // add/remove window from the table
1822 // ----------------------------------------------------------------------------
1823
1824 // Add to hash table, add event handler
1825 bool wxWindow::AttachWidget (wxWindow* WXUNUSED(parent), WXWidget mainWidget,
1826                              WXWidget formWidget, int x, int y, int width, int height)
1827 {
1828     wxAddWindowToTable((Widget) mainWidget, this);
1829     if (CanAddEventHandler())
1830     {
1831         XtAddEventHandler((Widget) mainWidget,
1832             ButtonPressMask | ButtonReleaseMask | PointerMotionMask, // | KeyPressMask,
1833             False,
1834             wxPanelItemEventHandler,
1835             (XtPointer) this);
1836     }
1837
1838     if (!formWidget)
1839     {
1840         XtTranslations ptr;
1841         XtOverrideTranslations ((Widget) mainWidget,
1842             ptr = XtParseTranslationTable ("<Configure>: resize()"));
1843         XtFree ((char *) ptr);
1844     }
1845
1846     // Some widgets have a parent form widget, e.g. wxRadioBox
1847     if (formWidget)
1848     {
1849         if (!wxAddWindowToTable((Widget) formWidget, this))
1850             return FALSE;
1851
1852         XtTranslations ptr;
1853         XtOverrideTranslations ((Widget) formWidget,
1854             ptr = XtParseTranslationTable ("<Configure>: resize()"));
1855         XtFree ((char *) ptr);
1856     }
1857
1858     if (x == -1)
1859         x = 0;
1860     if (y == -1)
1861         y = 0;
1862     SetSize (x, y, width, height);
1863
1864     return TRUE;
1865 }
1866
1867 // Remove event handler, remove from hash table
1868 bool wxWindow::DetachWidget(WXWidget widget)
1869 {
1870     if (CanAddEventHandler())
1871     {
1872         XtRemoveEventHandler((Widget) widget,
1873             ButtonPressMask | ButtonReleaseMask | PointerMotionMask, // | KeyPressMask,
1874             False,
1875             wxPanelItemEventHandler,
1876             (XtPointer)this);
1877     }
1878
1879     wxDeleteWindowFromTable((Widget) widget);
1880     return TRUE;
1881 }
1882
1883 // ----------------------------------------------------------------------------
1884 // Motif-specific accessors
1885 // ----------------------------------------------------------------------------
1886
1887 // Get the underlying X window
1888 WXWindow wxWindow::GetXWindow() const
1889 {
1890     Widget wMain = (Widget)GetMainWidget();
1891     if ( wMain )
1892         return (WXWindow) XtWindow(wMain);
1893     else
1894         return (WXWindow) 0;
1895 }
1896
1897 // Get the underlying X display
1898 WXDisplay *wxWindow::GetXDisplay() const
1899 {
1900     Widget wMain = (Widget)GetMainWidget();
1901     if ( wMain )
1902         return (WXDisplay*) XtDisplay(wMain);
1903     else
1904         return (WXDisplay*) NULL;
1905 }
1906
1907 WXWidget wxWindow::GetMainWidget() const
1908 {
1909     if (m_drawingArea)
1910         return m_drawingArea;
1911     else
1912         return m_mainWidget;
1913 }
1914
1915 WXWidget wxWindow::GetClientWidget() const
1916 {
1917     if (m_drawingArea != (WXWidget) 0)
1918         return m_drawingArea;
1919     else
1920         return GetMainWidget();
1921 }
1922
1923 WXWidget wxWindow::GetTopWidget() const
1924 {
1925     return GetMainWidget();
1926 }
1927
1928 WXWidget wxWindow::GetLabelWidget() const
1929 {
1930     return GetMainWidget();
1931 }
1932
1933 // ----------------------------------------------------------------------------
1934 // Motif callbacks
1935 // ----------------------------------------------------------------------------
1936
1937 // All widgets should have this as their resize proc.
1938 // OnSize sent to wxWindow via client data.
1939 void wxWidgetResizeProc(Widget w, XConfigureEvent *WXUNUSED(event), String WXUNUSED(args)[], int *WXUNUSED(num_args))
1940 {
1941     wxWindow *win = wxGetWindowFromTable(w);
1942     if (!win)
1943         return;
1944
1945     if (win->PreResize())
1946     {
1947         int width, height;
1948         win->GetSize(&width, &height);
1949         wxSizeEvent sizeEvent(wxSize(width, height), win->GetId());
1950         sizeEvent.SetEventObject(win);
1951         win->GetEventHandler()->ProcessEvent(sizeEvent);
1952     }
1953 }
1954
1955 static void wxCanvasRepaintProc(Widget drawingArea,
1956                                 XtPointer clientData,
1957                                 XmDrawingAreaCallbackStruct * cbs)
1958 {
1959     if (!wxGetWindowFromTable(drawingArea))
1960         return;
1961
1962     XEvent * event = cbs->event;
1963     wxWindow * win = (wxWindow *) clientData;
1964
1965     switch (event->type)
1966     {
1967     case Expose:
1968         {
1969             win->AddUpdateRect(event->xexpose.x, event->xexpose.y,
1970                                event->xexpose.width, event->xexpose.height);
1971
1972             if (event -> xexpose.count == 0)
1973             {
1974                 win->DoPaint();
1975                 win->ClearUpdateRects();
1976             }
1977             break;
1978         }
1979     }
1980 }
1981
1982 // Unable to deal with Enter/Leave without a separate EventHandler (Motif 1.1.4)
1983 static void wxCanvasEnterLeave(Widget drawingArea,
1984                                XtPointer WXUNUSED(clientData),
1985                                XCrossingEvent * event)
1986 {
1987     XmDrawingAreaCallbackStruct cbs;
1988     XEvent ev;
1989
1990     ((XCrossingEvent &) ev) = *event;
1991
1992     cbs.reason = XmCR_INPUT;
1993     cbs.event = &ev;
1994
1995     wxCanvasInputEvent(drawingArea, (XtPointer) NULL, &cbs);
1996 }
1997
1998 // Fix to make it work under Motif 1.0 (!)
1999 static void wxCanvasMotionEvent (Widget WXUNUSED(drawingArea), XButtonEvent * WXUNUSED(event))
2000 {
2001 #if XmVersion <= 1000
2002     XmDrawingAreaCallbackStruct cbs;
2003     XEvent ev;
2004
2005     ev = *((XEvent *) event);
2006     cbs.reason = XmCR_INPUT;
2007     cbs.event = &ev;
2008
2009     wxCanvasInputEvent (drawingArea, (XtPointer) NULL, &cbs);
2010 #endif // XmVersion <= 1000
2011 }
2012
2013 static void wxCanvasInputEvent(Widget drawingArea,
2014                                XtPointer WXUNUSED(data),
2015                                XmDrawingAreaCallbackStruct * cbs)
2016 {
2017     wxWindow *canvas = wxGetWindowFromTable(drawingArea);
2018     XEvent local_event;
2019
2020     if (canvas==NULL)
2021         return;
2022
2023     if (cbs->reason != XmCR_INPUT)
2024         return;
2025
2026     local_event = *(cbs->event);    // We must keep a copy!
2027
2028     switch (local_event.xany.type)
2029     {
2030     case EnterNotify:
2031     case LeaveNotify:
2032     case ButtonPress:
2033     case ButtonRelease:
2034     case MotionNotify:
2035         {
2036             // FIXME: most of this mouse event code is more or less
2037             // duplicated in wxTranslateMouseEvent
2038             //
2039             wxEventType eventType = wxEVT_NULL;
2040
2041             if (local_event.xany.type == EnterNotify)
2042             {
2043                 //if (local_event.xcrossing.mode!=NotifyNormal)
2044                 //  return ; // Ignore grab events
2045                 eventType = wxEVT_ENTER_WINDOW;
2046                 //            canvas->GetEventHandler()->OnSetFocus();
2047             }
2048             else if (local_event.xany.type == LeaveNotify)
2049             {
2050                 //if (local_event.xcrossingr.mode!=NotifyNormal)
2051                 //  return ; // Ignore grab events
2052                 eventType = wxEVT_LEAVE_WINDOW;
2053                 //            canvas->GetEventHandler()->OnKillFocus();
2054             }
2055             else if (local_event.xany.type == MotionNotify)
2056             {
2057                 eventType = wxEVT_MOTION;
2058             }
2059
2060             else if (local_event.xany.type == ButtonPress)
2061             {
2062                 if (local_event.xbutton.button == Button1)
2063                 {
2064                     eventType = wxEVT_LEFT_DOWN;
2065                     canvas->SetButton1(TRUE);
2066                 }
2067                 else if (local_event.xbutton.button == Button2)
2068                 {
2069                     eventType = wxEVT_MIDDLE_DOWN;
2070                     canvas->SetButton2(TRUE);
2071                 }
2072                 else if (local_event.xbutton.button == Button3)
2073                 {
2074                     eventType = wxEVT_RIGHT_DOWN;
2075                     canvas->SetButton3(TRUE);
2076                 }
2077             }
2078             else if (local_event.xany.type == ButtonRelease)
2079             {
2080                 if (local_event.xbutton.button == Button1)
2081                 {
2082                     eventType = wxEVT_LEFT_UP;
2083                     canvas->SetButton1(FALSE);
2084                 }
2085                 else if (local_event.xbutton.button == Button2)
2086                 {
2087                     eventType = wxEVT_MIDDLE_UP;
2088                     canvas->SetButton2(FALSE);
2089                 }
2090                 else if (local_event.xbutton.button == Button3)
2091                 {
2092                     eventType = wxEVT_RIGHT_UP;
2093                     canvas->SetButton3(FALSE);
2094                 }
2095             }
2096
2097             wxMouseEvent wxevent (eventType);
2098
2099             wxevent.m_leftDown = ((eventType == wxEVT_LEFT_DOWN)
2100                 || (event_left_is_down (&local_event)
2101                 && (eventType != wxEVT_LEFT_UP)));
2102             wxevent.m_middleDown = ((eventType == wxEVT_MIDDLE_DOWN)
2103                 || (event_middle_is_down (&local_event)
2104                 && (eventType != wxEVT_MIDDLE_UP)));
2105             wxevent.m_rightDown = ((eventType == wxEVT_RIGHT_DOWN)
2106                 || (event_right_is_down (&local_event)
2107                 && (eventType != wxEVT_RIGHT_UP)));
2108
2109             wxevent.m_shiftDown = local_event.xbutton.state & ShiftMask;
2110             wxevent.m_controlDown = local_event.xbutton.state & ControlMask;
2111             wxevent.m_altDown = local_event.xbutton.state & Mod3Mask;
2112             wxevent.m_metaDown = local_event.xbutton.state & Mod1Mask;
2113             wxevent.SetTimestamp(local_event.xbutton.time);
2114
2115            if ( eventType == wxEVT_MOTION )
2116            {
2117                 if (local_event.xmotion.is_hint == NotifyHint)
2118                 {
2119                     Window root, child;
2120                     Display *dpy = XtDisplay (drawingArea);
2121
2122                     XQueryPointer (dpy, XtWindow (drawingArea),
2123                         &root, &child,
2124                         &local_event.xmotion.x_root,
2125                         &local_event.xmotion.y_root,
2126                         &local_event.xmotion.x,
2127                         &local_event.xmotion.y,
2128                         &local_event.xmotion.state);
2129                 }
2130                 else
2131                 {
2132                 }
2133            }
2134
2135             // Now check if we need to translate this event into a double click
2136             if (TRUE) // canvas->doubleClickAllowed)
2137             {
2138                 if (wxevent.ButtonDown())
2139                 {
2140                     long dclickTime = XtGetMultiClickTime((Display*) wxGetDisplay());
2141
2142                     // get button and time-stamp
2143                     int button = 0;
2144                     if (wxevent.LeftDown())
2145                         button = 1;
2146                     else if (wxevent.MiddleDown())
2147                         button = 2;
2148                     else if (wxevent.RightDown())
2149                         button = 3;
2150                     long ts = wxevent.GetTimestamp();
2151
2152                     // check, if single or double click
2153                     int buttonLast = canvas->GetLastClickedButton();
2154                     long lastTS = canvas->GetLastClickTime();
2155                     if ( buttonLast && buttonLast == button && (ts - lastTS) < dclickTime )
2156                     {
2157                         // I have a dclick
2158                         canvas->SetLastClick(0, ts);
2159
2160                         wxEventType typeDouble;
2161                         if ( eventType == wxEVT_LEFT_DOWN )
2162                             typeDouble = wxEVT_LEFT_DCLICK;
2163                         else if ( eventType == wxEVT_MIDDLE_DOWN )
2164                             typeDouble = wxEVT_MIDDLE_DCLICK;
2165                         else if ( eventType == wxEVT_RIGHT_DOWN )
2166                             typeDouble = wxEVT_RIGHT_DCLICK;
2167                         else
2168                             typeDouble = wxEVT_NULL;
2169
2170                         if ( typeDouble != wxEVT_NULL )
2171                         {
2172                             wxevent.SetEventType(typeDouble);
2173                         }
2174                     }
2175                     else
2176                     {
2177                         // not fast enough or different button
2178                         canvas->SetLastClick(button, ts);
2179                     }
2180                 }
2181             }
2182
2183             wxevent.SetId(canvas->GetId());
2184             wxevent.SetEventObject(canvas);
2185             wxevent.m_x = local_event.xbutton.x;
2186             wxevent.m_y = local_event.xbutton.y;
2187             canvas->GetEventHandler()->ProcessEvent (wxevent);
2188 #if 0
2189             if (eventType == wxEVT_ENTER_WINDOW ||
2190                     eventType == wxEVT_LEAVE_WINDOW ||
2191                     eventType == wxEVT_MOTION
2192                )
2193                 return;
2194 #endif // 0
2195             break;
2196       }
2197     case KeyPress:
2198         {
2199             wxKeyEvent event (wxEVT_CHAR);
2200             if (wxTranslateKeyEvent (event, canvas, (Widget) 0, &local_event))
2201             {
2202                 // Implement wxFrame::OnCharHook by checking ancestor.
2203                 wxWindow *parent = canvas->GetParent();
2204                 while (parent && !parent->IsKindOf(CLASSINFO(wxFrame)))
2205                     parent = parent->GetParent();
2206
2207                 if (parent)
2208                 {
2209                     event.SetEventType(wxEVT_CHAR_HOOK);
2210                     if (parent->GetEventHandler()->ProcessEvent(event))
2211                         return;
2212                 }
2213
2214                 // For simplicity, OnKeyDown is the same as OnChar
2215                 // TODO: filter modifier key presses from OnChar
2216                 event.SetEventType(wxEVT_KEY_DOWN);
2217
2218                 // Only process OnChar if OnKeyDown didn't swallow it
2219                 if (!canvas->GetEventHandler()->ProcessEvent (event))
2220                 {
2221                   event.SetEventType(wxEVT_CHAR);
2222                   canvas->GetEventHandler()->ProcessEvent (event);
2223         }
2224             }
2225             break;
2226         }
2227     case KeyRelease:
2228         {
2229             wxKeyEvent event (wxEVT_KEY_UP);
2230             if (wxTranslateKeyEvent (event, canvas, (Widget) 0, &local_event))
2231             {
2232                 canvas->GetEventHandler()->ProcessEvent (event);
2233             }
2234             break;
2235         }
2236     case FocusIn:
2237         {
2238             if (local_event.xfocus.detail != NotifyPointer)
2239             {
2240                 wxFocusEvent event(wxEVT_SET_FOCUS, canvas->GetId());
2241                 event.SetEventObject(canvas);
2242                 canvas->GetEventHandler()->ProcessEvent(event);
2243             }
2244             break;
2245         }
2246     case FocusOut:
2247         {
2248             if (local_event.xfocus.detail != NotifyPointer)
2249             {
2250                 wxFocusEvent event(wxEVT_KILL_FOCUS, canvas->GetId());
2251                 event.SetEventObject(canvas);
2252                 canvas->GetEventHandler()->ProcessEvent(event);
2253             }
2254             break;
2255         }
2256     default:
2257         break;
2258     }
2259 }
2260
2261 static void wxPanelItemEventHandler(Widget    wid,
2262                                     XtPointer WXUNUSED(client_data),
2263                                     XEvent*   event,
2264                                     Boolean  *continueToDispatch)
2265 {
2266     // Widget can be a label or the actual widget.
2267
2268     wxWindow *window = wxGetWindowFromTable(wid);
2269     if (window)
2270     {
2271         wxMouseEvent wxevent(0);
2272         if (wxTranslateMouseEvent(wxevent, window, wid, event))
2273         {
2274             window->GetEventHandler()->ProcessEvent(wxevent);
2275         }
2276     }
2277
2278     // TODO: probably the key to allowing default behaviour to happen. Say we
2279     // set a m_doDefault flag to FALSE at the start of this function. Then in
2280     // e.g. wxWindow::OnMouseEvent we can call Default() which sets this flag to
2281     // TRUE, indicating that default processing can happen. Thus, behaviour can
2282     // appear to be overridden just by adding an event handler and not calling
2283     // wxWindow::OnWhatever. ALSO, maybe we can use this instead of the current
2284     // way of handling drawing area events, to simplify things.
2285     *continueToDispatch = True;
2286 }
2287
2288 static void wxScrollBarCallback(Widget scrollbar,
2289                                 XtPointer clientData,
2290                                 XmScrollBarCallbackStruct *cbs)
2291 {
2292     wxWindow *win = wxGetWindowFromTable(scrollbar);
2293     int orientation = (int) clientData;
2294
2295     wxEventType eventType = wxEVT_NULL;
2296     switch (cbs->reason)
2297     {
2298     case XmCR_INCREMENT:
2299         {
2300             eventType = wxEVT_SCROLLWIN_LINEDOWN;
2301             break;
2302         }
2303     case XmCR_DECREMENT:
2304         {
2305             eventType = wxEVT_SCROLLWIN_LINEUP;
2306             break;
2307         }
2308     case XmCR_DRAG:
2309         {
2310             eventType = wxEVT_SCROLLWIN_THUMBTRACK;
2311             break;
2312         }
2313     case XmCR_VALUE_CHANGED:
2314         {
2315             eventType = wxEVT_SCROLLWIN_THUMBRELEASE;
2316             break;
2317         }
2318     case XmCR_PAGE_INCREMENT:
2319         {
2320             eventType = wxEVT_SCROLLWIN_PAGEDOWN;
2321             break;
2322         }
2323     case XmCR_PAGE_DECREMENT:
2324         {
2325             eventType = wxEVT_SCROLLWIN_PAGEUP;
2326             break;
2327         }
2328     case XmCR_TO_TOP:
2329         {
2330             eventType = wxEVT_SCROLLWIN_TOP;
2331             break;
2332         }
2333     case XmCR_TO_BOTTOM:
2334         {
2335             eventType = wxEVT_SCROLLWIN_BOTTOM;
2336             break;
2337         }
2338     default:
2339         {
2340             // Should never get here
2341             wxFAIL_MSG("Unknown scroll event.");
2342             break;
2343         }
2344     }
2345
2346     wxScrollWinEvent event(eventType,
2347                            cbs->value,
2348                            ((orientation == XmHORIZONTAL) ?
2349                             wxHORIZONTAL : wxVERTICAL));
2350     event.SetEventObject( win );
2351     win->GetEventHandler()->ProcessEvent(event);
2352 }
2353
2354 // For repainting arbitrary windows
2355 void wxUniversalRepaintProc(Widget w, XtPointer WXUNUSED(c_data), XEvent *event, char *)
2356 {
2357     Window window;
2358     Display *display;
2359
2360     wxWindow* win = wxGetWindowFromTable(w);
2361     if (!win)
2362         return;
2363
2364     switch(event -> type)
2365     {
2366     case Expose:
2367         {
2368             window = (Window) win -> GetXWindow();
2369             display = (Display *) win -> GetXDisplay();
2370
2371             if (event -> xexpose.count == 0)
2372             {
2373                 win->DoPaint();
2374
2375                 win->ClearUpdateRects();
2376             }
2377             else
2378             {
2379                 win->AddUpdateRect(event->xexpose.x, event->xexpose.y,
2380                                    event->xexpose.width, event->xexpose.height);
2381             }
2382
2383             break;
2384         }
2385     }
2386 }
2387
2388 // ----------------------------------------------------------------------------
2389 // CanvaseXXXSize() functions
2390 // ----------------------------------------------------------------------------
2391
2392 void wxWindow::CanvasSetSize(int x, int y, int w, int h, int sizeFlags)
2393 {
2394     CanvasSetSizeIntr(x, y, w, h, sizeFlags, FALSE);
2395 }
2396
2397 // SetSize, but as per old wxCanvas (with drawing widget etc.)
2398 void wxWindow::CanvasSetSizeIntr(int x, int y, int w, int h, int sizeFlags,
2399                                  bool fromCtor)
2400 {
2401     // A bit of optimization to help sort out the flickers.
2402     int oldX = -1, oldY = -1, oldW = -1, oldH = -1;
2403     // see the top of the file, near DoSetSizeIntr
2404     if( !fromCtor )
2405     {
2406         GetSize(& oldW, & oldH);
2407         GetPosition(& oldX, & oldY);
2408     }
2409
2410     bool useOldPos = FALSE;
2411     bool useOldSize = FALSE;
2412
2413     if ((x == -1) && (x == -1) && ((sizeFlags & wxSIZE_ALLOW_MINUS_ONE) == 0))
2414         useOldPos = TRUE;
2415     else if (x == oldX && y == oldY)
2416         useOldPos = TRUE;
2417
2418     if ((w == -1) && (h == -1))
2419         useOldSize = TRUE;
2420     else if (w == oldW && h == oldH)
2421         useOldSize = TRUE;
2422
2423     if (!wxNoOptimize::CanOptimize())
2424     {
2425         useOldSize = FALSE; useOldPos = FALSE;
2426     }
2427
2428     if (useOldPos && useOldSize)
2429         return;
2430
2431     Widget drawingArea = (Widget) m_drawingArea;
2432     bool managed = XtIsManaged(m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow);
2433
2434     if (managed)
2435         XtUnmanageChild (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow);
2436     XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_ANY, NULL);
2437
2438     int xx = x; int yy = y;
2439     AdjustForParentClientOrigin(xx, yy, sizeFlags);
2440
2441     if (!useOldPos)
2442     {
2443         if (x > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2444         {
2445             XtVaSetValues (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow,
2446                 XmNx, xx, NULL);
2447         }
2448
2449         if (y > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2450         {
2451             XtVaSetValues (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow,
2452                 XmNy, yy, NULL);
2453         }
2454     }
2455
2456     if (!useOldSize)
2457     {
2458
2459         if (w > -1)
2460         {
2461             if (m_borderWidget)
2462             {
2463                 XtVaSetValues ((Widget) m_borderWidget, XmNwidth, w, NULL);
2464                 short thick, margin;
2465                 XtVaGetValues ((Widget) m_borderWidget,
2466                     XmNshadowThickness, &thick,
2467                     XmNmarginWidth, &margin,
2468                     NULL);
2469                 w -= 2 * (thick + margin);
2470             }
2471
2472             XtVaSetValues ((Widget) m_scrolledWindow, XmNwidth, w, NULL);
2473
2474             Dimension spacing;
2475             Widget sbar;
2476             XtVaGetValues ((Widget) m_scrolledWindow,
2477                 XmNspacing, &spacing,
2478                 XmNverticalScrollBar, &sbar,
2479                 NULL);
2480             Dimension wsbar;
2481             if (sbar)
2482                 XtVaGetValues (sbar, XmNwidth, &wsbar, NULL);
2483             else
2484                 wsbar = 0;
2485
2486             w -= (spacing + wsbar);
2487
2488 #if 0
2489             XtVaSetValues(drawingArea, XmNwidth, w, NULL);
2490 #endif // 0
2491         }
2492         if (h > -1)
2493         {
2494             if (m_borderWidget)
2495             {
2496                 XtVaSetValues ((Widget) m_borderWidget, XmNheight, h, NULL);
2497                 short thick, margin;
2498                 XtVaGetValues ((Widget) m_borderWidget,
2499                     XmNshadowThickness, &thick,
2500                     XmNmarginHeight, &margin,
2501                     NULL);
2502                 h -= 2 * (thick + margin);
2503             }
2504
2505             XtVaSetValues ((Widget) m_scrolledWindow, XmNheight, h, NULL);
2506
2507             Dimension spacing;
2508             Widget sbar;
2509             XtVaGetValues ((Widget) m_scrolledWindow,
2510                 XmNspacing, &spacing,
2511                 XmNhorizontalScrollBar, &sbar,
2512                 NULL);
2513             Dimension wsbar;
2514             if (sbar)
2515                 XtVaGetValues (sbar, XmNheight, &wsbar, NULL);
2516             else
2517                 wsbar = 0;
2518
2519             h -= (spacing + wsbar);
2520
2521 #if 0
2522             XtVaSetValues(drawingArea, XmNheight, h, NULL);
2523 #endif // 0
2524         }
2525     }
2526
2527     if (managed)
2528         XtManageChild (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow);
2529     XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_NONE, NULL);
2530
2531 #if 0
2532     int ww, hh;
2533     GetClientSize (&ww, &hh);
2534     wxSizeEvent sizeEvent(wxSize(ww, hh), GetId());
2535     sizeEvent.SetEventObject(this);
2536
2537     GetEventHandler()->ProcessEvent(sizeEvent);
2538 #endif // 0
2539 }
2540
2541 void wxWindow::CanvasSetClientSize (int w, int h)
2542 {
2543     Widget drawingArea = (Widget) m_drawingArea;
2544
2545     XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_ANY, NULL);
2546
2547     if (w > -1)
2548         XtVaSetValues(drawingArea, XmNwidth, w, NULL);
2549     if (h > -1)
2550         XtVaSetValues(drawingArea, XmNheight, h, NULL);
2551
2552 #if 0
2553     // TODO: is this necessary?
2554     allowRepainting = FALSE;
2555
2556     XSync (XtDisplay (drawingArea), FALSE);
2557     XEvent event;
2558     while (XtAppPending (wxTheApp->appContext))
2559     {
2560         XFlush (XtDisplay (drawingArea));
2561         XtAppNextEvent (wxTheApp->appContext, &event);
2562         XtDispatchEvent (&event);
2563     }
2564 #endif // 0
2565
2566     XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_NONE, NULL);
2567
2568 #if 0
2569     allowRepainting = TRUE;
2570     DoRefresh ();
2571
2572     wxSizeEvent sizeEvent(wxSize(w, h), GetId());
2573     sizeEvent.SetEventObject(this);
2574
2575     GetEventHandler()->ProcessEvent(sizeEvent);
2576 #endif // 0
2577 }
2578
2579 void wxWindow::CanvasGetClientSize (int *w, int *h) const
2580 {
2581     // Must return the same thing that was set via SetClientSize
2582     Dimension xx, yy;
2583     XtVaGetValues ((Widget) m_drawingArea, XmNwidth, &xx, XmNheight, &yy, NULL);
2584     *w = xx;
2585     *h = yy;
2586 }
2587
2588 void wxWindow::CanvasGetSize (int *w, int *h) const
2589 {
2590     Dimension xx, yy;
2591     if ((Widget) m_borderWidget)
2592         XtVaGetValues ((Widget) m_borderWidget, XmNwidth, &xx, XmNheight, &yy, NULL);
2593     else if ((Widget) m_scrolledWindow)
2594         XtVaGetValues ((Widget) m_scrolledWindow, XmNwidth, &xx, XmNheight, &yy, NULL);
2595     else
2596         XtVaGetValues ((Widget) m_drawingArea, XmNwidth, &xx, XmNheight, &yy, NULL);
2597
2598     *w = xx;
2599     *h = yy;
2600 }
2601
2602 void wxWindow::CanvasGetPosition (int *x, int *y) const
2603 {
2604     Position xx, yy;
2605     XtVaGetValues (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow, XmNx, &xx, XmNy, &yy, NULL);
2606
2607     // We may be faking the client origin.
2608     // So a window that's really at (0, 30) may appear
2609     // (to wxWin apps) to be at (0, 0).
2610     if (GetParent())
2611     {
2612         wxPoint pt(GetParent()->GetClientAreaOrigin());
2613         xx -= pt.x;
2614         yy -= pt.y;
2615     }
2616
2617     *x = xx;
2618     *y = yy;
2619 }
2620
2621 // ----------------------------------------------------------------------------
2622 // TranslateXXXEvent() functions
2623 // ----------------------------------------------------------------------------
2624
2625 bool wxTranslateMouseEvent(wxMouseEvent& wxevent, wxWindow *win, Widget widget, XEvent *xevent)
2626 {
2627     switch (xevent->xany.type)
2628     {
2629         case EnterNotify:  // never received here - yes ? MB
2630         case LeaveNotify:  // never received here - yes ? MB
2631         case ButtonPress:
2632         case ButtonRelease:
2633         case MotionNotify:
2634         {
2635             wxEventType eventType = wxEVT_NULL;
2636
2637             // FIXME: this is never true I think - MB
2638             //
2639             if (xevent->xany.type == LeaveNotify)
2640             {
2641                 win->SetButton1(FALSE);
2642                 win->SetButton2(FALSE);
2643                 win->SetButton3(FALSE);
2644                 return FALSE;
2645             }
2646             else if (xevent->xany.type == MotionNotify)
2647             {
2648                 eventType = wxEVT_MOTION;
2649             }
2650             else if (xevent->xany.type == ButtonPress)
2651             {
2652                 wxevent.SetTimestamp(xevent->xbutton.time);
2653                 int button = 0;
2654                 if (xevent->xbutton.button == Button1)
2655                 {
2656                     eventType = wxEVT_LEFT_DOWN;
2657                     win->SetButton1(TRUE);
2658                     button = 1;
2659                 }
2660                 else if (xevent->xbutton.button == Button2)
2661                 {
2662                     eventType = wxEVT_MIDDLE_DOWN;
2663                     win->SetButton2(TRUE);
2664                     button = 2;
2665                 }
2666                 else if (xevent->xbutton.button == Button3)
2667                 {
2668                     eventType = wxEVT_RIGHT_DOWN;
2669                     win->SetButton3(TRUE);
2670                     button = 3;
2671                 }
2672
2673                 // check for a double click
2674                 //
2675                 long dclickTime = XtGetMultiClickTime((Display*) wxGetDisplay());
2676                 long ts = wxevent.GetTimestamp();
2677
2678                 int buttonLast = win->GetLastClickedButton();
2679                 long lastTS = win->GetLastClickTime();
2680                 if ( buttonLast && buttonLast == button && (ts - lastTS) < dclickTime )
2681                 {
2682                     // I have a dclick
2683                     win->SetLastClick(0, ts);
2684                     if ( eventType == wxEVT_LEFT_DOWN )
2685                         eventType = wxEVT_LEFT_DCLICK;
2686                     else if ( eventType == wxEVT_MIDDLE_DOWN )
2687                         eventType = wxEVT_MIDDLE_DCLICK;
2688                     else if ( eventType == wxEVT_RIGHT_DOWN )
2689                         eventType = wxEVT_RIGHT_DCLICK;
2690                 }
2691                 else
2692                 {
2693                     // not fast enough or different button
2694                     win->SetLastClick(button, ts);
2695                 }
2696             }
2697             else if (xevent->xany.type == ButtonRelease)
2698             {
2699                 if (xevent->xbutton.button == Button1)
2700                 {
2701                     eventType = wxEVT_LEFT_UP;
2702                     win->SetButton1(FALSE);
2703                 }
2704                 else if (xevent->xbutton.button == Button2)
2705                 {
2706                     eventType = wxEVT_MIDDLE_UP;
2707                     win->SetButton2(FALSE);
2708                 }
2709                 else if (xevent->xbutton.button == Button3)
2710                 {
2711                     eventType = wxEVT_RIGHT_UP;
2712                     win->SetButton3(FALSE);
2713                 }
2714                 else return FALSE;
2715             }
2716             else
2717             {
2718                 return FALSE;
2719             }
2720
2721             wxevent.SetEventType(eventType);
2722
2723             Position x1, y1;
2724             XtVaGetValues(widget, XmNx, &x1, XmNy, &y1, NULL);
2725
2726             int x2, y2;
2727             win->GetPosition(&x2, &y2);
2728
2729             // The button x/y must be translated to wxWindows
2730             // window space - the widget might be a label or button,
2731             // within a form.
2732             int dx = 0;
2733             int dy = 0;
2734             if (widget != (Widget)win->GetMainWidget())
2735             {
2736                 dx = x1;
2737                 dy = y1;
2738             }
2739
2740             wxevent.m_x = xevent->xbutton.x + dx;
2741             wxevent.m_y = xevent->xbutton.y + dy;
2742
2743             wxevent.m_leftDown = ((eventType == wxEVT_LEFT_DOWN)
2744                 || (event_left_is_down (xevent)
2745                 && (eventType != wxEVT_LEFT_UP)));
2746             wxevent.m_middleDown = ((eventType == wxEVT_MIDDLE_DOWN)
2747                 || (event_middle_is_down (xevent)
2748                 && (eventType != wxEVT_MIDDLE_UP)));
2749             wxevent.m_rightDown = ((eventType == wxEVT_RIGHT_DOWN)
2750                 || (event_right_is_down (xevent)
2751                 && (eventType != wxEVT_RIGHT_UP)));
2752
2753             wxevent.m_shiftDown = xevent->xbutton.state & ShiftMask;
2754             wxevent.m_controlDown = xevent->xbutton.state & ControlMask;
2755             wxevent.m_altDown = xevent->xbutton.state & Mod3Mask;
2756             wxevent.m_metaDown = xevent->xbutton.state & Mod1Mask;
2757
2758             wxevent.SetId(win->GetId());
2759             wxevent.SetEventObject(win);
2760
2761             return TRUE;
2762         }
2763     }
2764     return FALSE;
2765 }
2766
2767 bool wxTranslateKeyEvent(wxKeyEvent& wxevent, wxWindow *win, Widget WXUNUSED(widget), XEvent *xevent)
2768 {
2769     switch (xevent->xany.type)
2770     {
2771     case KeyPress:
2772     case KeyRelease:
2773         {
2774             char buf[20];
2775
2776             KeySym keySym;
2777 #if 0
2778             XComposeStatus compose;
2779             (void) XLookupString ((XKeyEvent *) xevent, buf, 20, &keySym, &compose);
2780 #endif // 0
2781             (void) XLookupString ((XKeyEvent *) xevent, buf, 20, &keySym, NULL);
2782             int id = wxCharCodeXToWX (keySym);
2783             // id may be WXK_xxx code - these are outside ASCII range, so we
2784             // can't just use toupper() on id
2785             if (id >= 'a' && id <= 'z')
2786                 id = toupper(id);
2787
2788             if (xevent->xkey.state & ShiftMask)
2789                 wxevent.m_shiftDown = TRUE;
2790             if (xevent->xkey.state & ControlMask)
2791                 wxevent.m_controlDown = TRUE;
2792             if (xevent->xkey.state & Mod3Mask)
2793                 wxevent.m_altDown = TRUE;
2794             if (xevent->xkey.state & Mod1Mask)
2795                 wxevent.m_metaDown = TRUE;
2796             wxevent.SetEventObject(win);
2797             wxevent.m_keyCode = id;
2798             wxevent.SetTimestamp(xevent->xkey.time);
2799
2800             wxevent.m_x = xevent->xbutton.x;
2801             wxevent.m_y = xevent->xbutton.y;
2802
2803             if (id > -1)
2804                 return TRUE;
2805             else
2806                 return FALSE;
2807             break;
2808         }
2809     default:
2810         break;
2811     }
2812     return FALSE;
2813 }
2814
2815 // ----------------------------------------------------------------------------
2816 // Colour stuff
2817 // ----------------------------------------------------------------------------
2818
2819 #define YAllocColor XAllocColor
2820 XColor g_itemColors[5];
2821 int wxComputeColours (Display *display, wxColour * back, wxColour * fore)
2822 {
2823     int result;
2824     static XmColorProc colorProc;
2825
2826     result = wxNO_COLORS;
2827
2828     if (back)
2829     {
2830         g_itemColors[0].red = (((long) back->Red ()) << 8);
2831         g_itemColors[0].green = (((long) back->Green ()) << 8);
2832         g_itemColors[0].blue = (((long) back->Blue ()) << 8);
2833         g_itemColors[0].flags = DoRed | DoGreen | DoBlue;
2834         if (colorProc == (XmColorProc) NULL)
2835         {
2836             // Get a ptr to the actual function
2837             colorProc = XmSetColorCalculation ((XmColorProc) NULL);
2838             // And set it back to motif.
2839             XmSetColorCalculation (colorProc);
2840         }
2841         (*colorProc) (&g_itemColors[wxBACK_INDEX],
2842             &g_itemColors[wxFORE_INDEX],
2843             &g_itemColors[wxSELE_INDEX],
2844             &g_itemColors[wxTOPS_INDEX],
2845             &g_itemColors[wxBOTS_INDEX]);
2846         result = wxBACK_COLORS;
2847     }
2848     if (fore)
2849     {
2850         g_itemColors[wxFORE_INDEX].red = (((long) fore->Red ()) << 8);
2851         g_itemColors[wxFORE_INDEX].green = (((long) fore->Green ()) << 8);
2852         g_itemColors[wxFORE_INDEX].blue = (((long) fore->Blue ()) << 8);
2853         g_itemColors[wxFORE_INDEX].flags = DoRed | DoGreen | DoBlue;
2854         if (result == wxNO_COLORS)
2855             result = wxFORE_COLORS;
2856     }
2857
2858     Display *dpy = display;
2859     Colormap cmap = (Colormap) wxTheApp->GetMainColormap((WXDisplay*) dpy);
2860
2861     if (back)
2862     {
2863         /* 5 Colours to allocate */
2864         for (int i = 0; i < 5; i++)
2865             if (!YAllocColor (dpy, cmap, &g_itemColors[i]))
2866                 result = wxNO_COLORS;
2867     }
2868     else if (fore)
2869     {
2870         /* Only 1 colour to allocate */
2871         if (!YAllocColor (dpy, cmap, &g_itemColors[wxFORE_INDEX]))
2872             result = wxNO_COLORS;
2873     }
2874
2875     return (result);
2876
2877 }
2878
2879 // Changes the foreground and background colours to be derived from the current
2880 // background colour. To change the foreground colour, you must call
2881 // SetForegroundColour explicitly.
2882 void wxWindow::ChangeBackgroundColour()
2883 {
2884     WXWidget mainWidget = GetMainWidget();
2885     if ( mainWidget )
2886         DoChangeBackgroundColour(mainWidget, m_backgroundColour);
2887
2888     // This not necessary
2889 #if 0
2890
2891     if (m_scrolledWindow && (GetMainWidget() != m_scrolledWindow))
2892     {
2893         DoChangeBackgroundColour(m_scrolledWindow, m_backgroundColour);
2894         // Have to set the scrollbar colours back since
2895         // the scrolled window seemed to change them
2896         wxColour backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
2897
2898         if (m_hScrollBar)
2899             DoChangeBackgroundColour(m_hScrollBar, backgroundColour);
2900         if (m_vScrollBar)
2901             DoChangeBackgroundColour(m_vScrollBar, backgroundColour);
2902     }
2903 #endif
2904 }
2905
2906 void wxWindow::ChangeForegroundColour()
2907 {
2908     WXWidget mainWidget = GetMainWidget();
2909     if ( mainWidget )
2910         DoChangeForegroundColour(mainWidget, m_foregroundColour);
2911     if ( m_scrolledWindow && mainWidget != m_scrolledWindow )
2912         DoChangeForegroundColour(m_scrolledWindow, m_foregroundColour);
2913 }
2914
2915 // Change a widget's foreground and background colours.
2916 void wxWindow::DoChangeForegroundColour(WXWidget widget, wxColour& foregroundColour)
2917 {
2918     // When should we specify the foreground, if it's calculated
2919     // by wxComputeColours?
2920     // Solution: say we start with the default (computed) foreground colour.
2921     // If we call SetForegroundColour explicitly for a control or window,
2922     // then the foreground is changed.
2923     // Therefore SetBackgroundColour computes the foreground colour, and
2924     // SetForegroundColour changes the foreground colour. The ordering is
2925     // important.
2926
2927     Widget w = (Widget)widget;
2928     XtVaSetValues(
2929                   w,
2930                   XmNforeground, foregroundColour.AllocColour(XtDisplay(w)),
2931                   NULL
2932                  );
2933 }
2934
2935 void wxWindow::DoChangeBackgroundColour(WXWidget widget, wxColour& backgroundColour, bool changeArmColour)
2936 {
2937     wxComputeColours (XtDisplay((Widget) widget), & backgroundColour,
2938         (wxColour*) NULL);
2939
2940     XtVaSetValues ((Widget) widget,
2941         XmNbackground, g_itemColors[wxBACK_INDEX].pixel,
2942         XmNtopShadowColor, g_itemColors[wxTOPS_INDEX].pixel,
2943         XmNbottomShadowColor, g_itemColors[wxBOTS_INDEX].pixel,
2944         XmNforeground, g_itemColors[wxFORE_INDEX].pixel,
2945         NULL);
2946
2947     if (changeArmColour)
2948         XtVaSetValues ((Widget) widget,
2949         XmNarmColor, g_itemColors[wxSELE_INDEX].pixel,
2950         NULL);
2951 }
2952
2953 bool wxWindow::SetBackgroundColour(const wxColour& col)
2954 {
2955     if ( !wxWindowBase::SetBackgroundColour(col) )
2956         return FALSE;
2957
2958     ChangeBackgroundColour();
2959
2960     return TRUE;
2961 }
2962
2963 bool wxWindow::SetForegroundColour(const wxColour& col)
2964 {
2965     if ( !wxWindowBase::SetForegroundColour(col) )
2966         return FALSE;
2967
2968     ChangeForegroundColour();
2969
2970     return TRUE;
2971 }
2972
2973 void wxWindow::ChangeFont(bool keepOriginalSize)
2974 {
2975     // Note that this causes the widget to be resized back
2976     // to its original size! We therefore have to set the size
2977     // back again. TODO: a better way in Motif?
2978     Widget w = (Widget) GetLabelWidget(); // Usually the main widget
2979     if (w && m_font.Ok())
2980     {
2981         int width, height, width1, height1;
2982         GetSize(& width, & height);
2983
2984         // lesstif 0.87 hangs here, but 0.93 does not
2985 #if !defined(LESSTIF_VERSION) \
2986     || (defined(LesstifVersion) && LesstifVersion >= 93)
2987         XtVaSetValues (w,
2988             XmNfontList, (XmFontList) m_font.GetFontList(1.0, XtDisplay(w)),
2989             NULL);
2990 #endif
2991
2992         GetSize(& width1, & height1);
2993         if (keepOriginalSize && (width != width1 || height != height1))
2994         {
2995             SetSize(-1, -1, width, height);
2996         }
2997     }
2998 }
2999
3000 // ----------------------------------------------------------------------------
3001 // global functions
3002 // ----------------------------------------------------------------------------
3003
3004 wxWindow *wxGetActiveWindow()
3005 {
3006     // TODO
3007     wxFAIL_MSG("Not implemented");
3008     return NULL;
3009 }
3010
3011 /* static */
3012 wxWindow *wxWindowBase::GetCapture()
3013 {
3014     return (wxWindow *)g_captureWindow;
3015 }
3016
3017
3018 // Find the wxWindow at the current mouse position, returning the mouse
3019 // position.
3020 wxWindow* wxFindWindowAtPointer(wxPoint& pt)
3021 {
3022     return wxFindWindowAtPoint(wxGetMousePosition());
3023 }
3024
3025 // Get the current mouse position.
3026 wxPoint wxGetMousePosition()
3027 {
3028     Display *display = (Display*) wxGetDisplay();
3029     Window rootWindow = RootWindowOfScreen (DefaultScreenOfDisplay(display));
3030     Window rootReturn, childReturn;
3031     int rootX, rootY, winX, winY;
3032     unsigned int maskReturn;
3033
3034     XQueryPointer (display,
3035                    rootWindow,
3036                    &rootReturn,
3037                    &childReturn,
3038                    &rootX, &rootY, &winX, &winY, &maskReturn);
3039     return wxPoint(rootX, rootY);
3040 }
3041
3042
3043 // ----------------------------------------------------------------------------
3044 // wxNoOptimize: switch off size optimization
3045 // ----------------------------------------------------------------------------
3046
3047 int wxNoOptimize::ms_count = 0;
3048