src/motif/window.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        windows.cpp
   3 // Purpose:     wxWindow
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "window.h"
  22 #endif
  23
  24 #ifdef __VMS
  25 #define XtDisplay XTDISPLAY
  26 #define XtWindow XTWINDOW
  27 #define XtScreen XTSCREEN
  28 #endif
  29
  30 #include "wx/setup.h"
  31 #include "wx/menu.h"
  32 #include "wx/dc.h"
  33 #include "wx/dcclient.h"
  34 #include "wx/utils.h"
  35 #include "wx/app.h"
  36 #include "wx/panel.h"
  37 #include "wx/layout.h"
  38 #include "wx/dialog.h"
  39 #include "wx/listbox.h"
  40 #include "wx/button.h"
  41 #include "wx/settings.h"
  42 #include "wx/msgdlg.h"
  43 #include "wx/frame.h"
  44 #include "wx/scrolwin.h"
  45 #include "wx/module.h"
  46 #include "wx/menuitem.h"
  47 #include "wx/log.h"
  48
  49 #if  wxUSE_DRAG_AND_DROP
  50     #include "wx/dnd.h"
  51 #endif
  52
  53 #ifdef __VMS__
  54 #pragma message disable nosimpint
  55 #endif
  56 #include <Xm/Xm.h>
  57
  58 #include <Xm/DrawingA.h>
  59 #include <Xm/ScrolledW.h>
  60 #include <Xm/ScrollBar.h>
  61 #include <Xm/Frame.h>
  62 #include <Xm/Label.h>
  63 #include <Xm/RowColumn.h>           // for XmMenuPosition
  64 #ifdef __VMS__
  65 #pragma message enable nosimpint
  66 #endif
  67
  68 #include "wx/motif/private.h"
  69
  70 #include <string.h>
  71
  72 // ----------------------------------------------------------------------------
  73 // constants
  74 // ----------------------------------------------------------------------------
  75
  76 static const int SCROLL_MARGIN = 4;
  77
  78 // ----------------------------------------------------------------------------
  79 // global variables for this module
  80 // ----------------------------------------------------------------------------
  81
  82 extern wxHashTable *wxWidgetHashTable;
  83 static wxWindow* g_captureWindow = NULL;
  84
  85
  86 // ----------------------------------------------------------------------------
  87 // private functions
  88 // ----------------------------------------------------------------------------
  89
  90 static void wxCanvasRepaintProc(Widget, XtPointer, XmDrawingAreaCallbackStruct * cbs);
  91 static void wxCanvasInputEvent(Widget drawingArea, XtPointer data, XmDrawingAreaCallbackStruct * cbs);
  92 static void wxCanvasMotionEvent(Widget, XButtonEvent * event);
  93 static void wxCanvasEnterLeave(Widget drawingArea, XtPointer clientData, XCrossingEvent * event);
  94 static void wxScrollBarCallback(Widget widget, XtPointer clientData,
  95                                 XmScrollBarCallbackStruct *cbs);
  96 static void wxPanelItemEventHandler(Widget    wid,
  97                                     XtPointer client_data,
  98                                     XEvent*   event,
  99                                     Boolean  *continueToDispatch);
 100
 101 // unused for now
 102 #if 0
 103
 104 // Helper function for 16-bit fonts
 105 static int str16len(const char *s)
 106 {
 107     int count = 0;
 108
 109     while (s[0] && s[1]) {
 110         count++;
 111         s += 2;
 112     }
 113
 114     return count;
 115 }
 116
 117 #endif // 0
 118
 119 // ----------------------------------------------------------------------------
 120 // macros
 121 // ----------------------------------------------------------------------------
 122
 123 #define event_left_is_down(x) ((x)->xbutton.state & Button1Mask)
 124 #define event_middle_is_down(x) ((x)->xbutton.state & Button2Mask)
 125 #define event_right_is_down(x) ((x)->xbutton.state & Button3Mask)
 126
 127 // ----------------------------------------------------------------------------
 128 // event tables
 129 // ----------------------------------------------------------------------------
 130
 131     IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxWindowBase)
 132
 133     BEGIN_EVENT_TABLE(wxWindow, wxWindowBase)
 134         EVT_SYS_COLOUR_CHANGED(wxWindow::OnSysColourChanged)
 135         EVT_IDLE(wxWindow::OnIdle)
 136     END_EVENT_TABLE()
 137
 138 // ============================================================================
 139 // implementation
 140 // ============================================================================
 141
 142 // ----------------------------------------------------------------------------
 143 // helper functions
 144 // ----------------------------------------------------------------------------
 145
 146 void wxWindow::UnmanageAndDestroy(WXWidget widget)
 147 {
 148     Widget w = (Widget)widget;
 149     if ( w )
 150     {
 151         XtUnmanageChild(w);
 152         XtDestroyWidget(w);
 153     }
 154 }
 155
 156 bool wxWindow::MapOrUnmap(WXWidget widget, bool map)
 157 {
 158     Widget w = (Widget)widget;
 159     if ( !w )
 160         return FALSE;
 161
 162     if ( map )
 163         XtMapWidget(w);
 164     else
 165         XtUnmapWidget(w);
 166
 167     return TRUE;
 168 }
 169
 170 // ----------------------------------------------------------------------------
 171 // constructors
 172 // ----------------------------------------------------------------------------
 173
 174 void wxWindow::Init()
 175 {
 176     // generic initializations first
 177     InitBase();
 178
 179     // Motif-specific
 180     m_needsRefresh = TRUE;
 181     m_mainWidget = (WXWidget) 0;
 182
 183     m_button1Pressed =
 184     m_button2Pressed =
 185     m_button3Pressed = FALSE;
 186
 187     m_winCaptured = FALSE;
 188
 189     m_isShown = TRUE;
 190     m_isBeingDeleted = FALSE;
 191
 192     m_hScrollBar =
 193     m_vScrollBar =
 194     m_borderWidget =
 195     m_scrolledWindow =
 196     m_drawingArea = (WXWidget) 0;
 197
 198     m_hScroll =
 199     m_vScroll = FALSE;
 200
 201     m_scrollPosX =
 202     m_scrollPosY = 0;
 203
 204     m_backingPixmap = (WXPixmap) 0;
 205     m_pixmapWidth =
 206     m_pixmapHeight = 0;
 207
 208     m_pixmapOffsetX =
 209     m_pixmapOffsetY = 0;
 210
 211     m_lastTS = 0;
 212     m_lastButton = 0;
 213     m_canAddEventHandler = FALSE;
 214 }
 215
 216 // real construction (Init() must have been called before!)
 217 bool wxWindow::Create(wxWindow *parent, wxWindowID id,
 218                       const wxPoint& pos,
 219                       const wxSize& size,
 220                       long style,
 221                       const wxString& name)
 222 {
 223     wxCHECK_MSG( parent, FALSE, "can't create wxWindow without parent" );
 224
 225     CreateBase(parent, id, pos, size, style, wxDefaultValidator, name);
 226
 227     parent->AddChild(this);
 228
 229     m_backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 230     m_foregroundColour = *wxBLACK;
 231
 232     //// TODO: we should probably optimize by only creating a
 233     //// a drawing area if we have one or more scrollbars (wxVSCROLL/wxHSCROLL).
 234     //// But for now, let's simplify things by always creating the
 235     //// drawing area, since otherwise the translations are different.
 236
 237     // New translations for getting mouse motion feedback
 238     static const String translations =
 239 "<Btn1Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 240 <Btn2Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 241 <Btn3Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 242 <BtnMotion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 243 <Btn1Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 244 <Btn2Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 245 <Btn3Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 246 <Btn1Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 247 <Btn2Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 248 <Btn3Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 249 <Motion>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 250 <EnterWindow>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 251 <LeaveWindow>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 252 <Key>: DrawingAreaInput()";
 253
 254     XtActionsRec actions[1];
 255     actions[0].string = "wxCanvasMotionEvent";
 256     actions[0].proc = (XtActionProc) wxCanvasMotionEvent;
 257     XtAppAddActions ((XtAppContext) wxTheApp->GetAppContext(), actions, 1);
 258
 259     Widget parentWidget = (Widget) parent->GetClientWidget();
 260
 261     if (style & wxSIMPLE_BORDER)
 262     {
 263         m_borderWidget = (WXWidget)XtVaCreateManagedWidget
 264                                    (
 265                                     "canvasBorder",
 266                                     xmFrameWidgetClass, parentWidget,
 267                                     XmNshadowType, XmSHADOW_IN,
 268                                     XmNshadowThickness, 1,
 269                                     NULL
 270                                    );
 271     } else if (style & wxSUNKEN_BORDER)
 272     {
 273         m_borderWidget = (WXWidget)XtVaCreateManagedWidget
 274                                    (
 275                                     "canvasBorder",
 276                                     xmFrameWidgetClass, parentWidget,
 277                                     XmNshadowType, XmSHADOW_IN,
 278                                     NULL
 279                                    );
 280     } else if (style & wxRAISED_BORDER)
 281     {
 282         m_borderWidget = (WXWidget)XtVaCreateManagedWidget
 283                                    (
 284                                     "canvasBorder",
 285                                     xmFrameWidgetClass, parentWidget,
 286                                     XmNshadowType, XmSHADOW_OUT,
 287                                     NULL
 288                                    );
 289     }
 290
 291     m_scrolledWindow = (WXWidget)XtVaCreateManagedWidget
 292                                  (
 293                                   "scrolledWindow",
 294                                   xmScrolledWindowWidgetClass,
 295                                   m_borderWidget ? (Widget) m_borderWidget
 296                                                  : parentWidget,
 297                                   XmNresizePolicy, XmRESIZE_NONE,
 298                                   XmNspacing, 0,
 299                                   XmNscrollingPolicy, XmAPPLICATION_DEFINED,
 300                                   //XmNscrollBarDisplayPolicy, XmAS_NEEDED,
 301                                   NULL
 302                                  );
 303
 304     XtTranslations ptr = XtParseTranslationTable(translations);
 305     m_drawingArea = (WXWidget)XtVaCreateWidget
 306                               (
 307                                name,
 308                                xmDrawingAreaWidgetClass, (Widget) m_scrolledWindow,
 309                                XmNunitType, XmPIXELS,
 310                                // XmNresizePolicy, XmRESIZE_ANY,
 311                                XmNresizePolicy, XmRESIZE_NONE,
 312                                XmNmarginHeight, 0,
 313                                XmNmarginWidth, 0,
 314                                XmNtranslations, ptr,
 315                                NULL
 316                               );
 317     XtFree((char *) ptr);
 318
 319 #if 0
 320     if (GetWindowStyleFlag() & wxOVERRIDE_KEY_TRANSLATIONS)
 321     {
 322         ptr = XtParseTranslationTable ("<Key>: DrawingAreaInput()");
 323         XtOverrideTranslations ((Widget) m_drawingArea, ptr);
 324         XtFree ((char *) ptr);
 325     }
 326 #endif // 0
 327
 328     wxAddWindowToTable((Widget) m_drawingArea, this);
 329     wxAddWindowToTable((Widget) m_scrolledWindow, this);
 330
 331     // This order is very important in Motif 1.2.1
 332     XtRealizeWidget ((Widget) m_scrolledWindow);
 333     XtRealizeWidget ((Widget) m_drawingArea);
 334     XtManageChild ((Widget) m_drawingArea);
 335
 336     ptr = XtParseTranslationTable("<Configure>: resize()");
 337     XtOverrideTranslations((Widget) m_drawingArea, ptr);
 338     XtFree ((char *) ptr);
 339
 340     XtAddCallback ((Widget) m_drawingArea, XmNexposeCallback, (XtCallbackProc) wxCanvasRepaintProc, (XtPointer) this);
 341     XtAddCallback ((Widget) m_drawingArea, XmNinputCallback, (XtCallbackProc) wxCanvasInputEvent, (XtPointer) this);
 342
 343     // TODO?
 344 #if 0
 345     display = XtDisplay (scrolledWindow);
 346     xwindow = XtWindow (drawingArea);
 347 #endif // 0
 348
 349     XtAddEventHandler(
 350                       (Widget)m_drawingArea,
 351                        PointerMotionHintMask | EnterWindowMask |
 352                        LeaveWindowMask | FocusChangeMask,
 353                        False,
 354                        (XtEventHandler) wxCanvasEnterLeave,
 355                        (XtPointer) this
 356                      );
 357
 358     // Scrolled widget needs to have its colour changed or we get a little blue
 359     // square where the scrollbars abutt
 360     wxColour backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 361     DoChangeBackgroundColour(m_scrolledWindow, backgroundColour, TRUE);
 362     DoChangeBackgroundColour(m_drawingArea, backgroundColour, TRUE);
 363
 364     XmScrolledWindowSetAreas(
 365                              (Widget)m_scrolledWindow,
 366                              (Widget) 0, (Widget) 0,
 367                              (Widget) m_drawingArea);
 368
 369 #if 0
 370     if (m_hScrollBar)
 371         XtRealizeWidget ((Widget) m_hScrollBar);
 372     if (m_vScrollBar)
 373         XtRealizeWidget ((Widget) m_vScrollBar);
 374 #endif // 0
 375
 376     // Without this, the cursor may not be restored properly (e.g. in splitter
 377     // sample).
 378     SetCursor(*wxSTANDARD_CURSOR);
 379     SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
 380     SetSize(pos.x, pos.y, size.x, size.y);
 381
 382     return TRUE;
 383 }
 384
 385 // Destructor
 386 wxWindow::~wxWindow()
 387 {
 388     if (g_captureWindow == this)
 389         g_captureWindow = NULL;
 390
 391     m_isBeingDeleted = TRUE;
 392
 393     // Motif-specific actions first
 394     WXWidget wMain = GetMainWidget();
 395     if ( wMain )
 396     {
 397         // Removes event handlers
 398         DetachWidget(wMain);
 399     }
 400
 401     ClearUpdateRects();
 402
 403     if ( m_parent )
 404         m_parent->RemoveChild( this );
 405
 406     // If m_drawingArea, we're a fully-fledged window with drawing area,
 407     // scrollbars etc. (what wxCanvas used to be)
 408     if ( m_drawingArea )
 409     {
 410         // Destroy children before destroying self
 411         DestroyChildren();
 412
 413         if (m_backingPixmap)
 414             XFreePixmap (XtDisplay ((Widget) GetMainWidget()), (Pixmap) m_backingPixmap);
 415
 416         Widget w = (Widget) m_drawingArea;
 417         wxDeleteWindowFromTable(w);
 418
 419         if (w)
 420         {
 421             XtDestroyWidget(w);
 422             m_drawingArea = (WXWidget) 0;
 423         }
 424
 425         // Only if we're _really_ a canvas (not a dialog box/panel)
 426         if (m_scrolledWindow)
 427         {
 428             wxDeleteWindowFromTable((Widget) m_scrolledWindow);
 429         }
 430
 431         if (m_hScrollBar)
 432         {
 433             wxDeleteWindowFromTable((Widget) m_hScrollBar);
 434             XtUnmanageChild((Widget) m_hScrollBar);
 435         }
 436         if (m_vScrollBar)
 437         {
 438             wxDeleteWindowFromTable((Widget) m_vScrollBar);
 439             XtUnmanageChild((Widget) m_vScrollBar);
 440         }
 441
 442         if (m_hScrollBar)
 443             XtDestroyWidget((Widget) m_hScrollBar);
 444         if (m_vScrollBar)
 445             XtDestroyWidget((Widget) m_vScrollBar);
 446
 447         UnmanageAndDestroy(m_scrolledWindow);
 448
 449         if (m_borderWidget)
 450         {
 451             XtDestroyWidget ((Widget) m_borderWidget);
 452             m_borderWidget = (WXWidget) 0;
 453         }
 454     }
 455     else // Why wasn't this here before? JACS 8/3/2000
 456         DestroyChildren();
 457
 458
 459     // Destroy the window
 460     if (GetMainWidget())
 461     {
 462         // If this line (XtDestroyWidget) causes a crash, you may comment it out.
 463         // Child widgets will get destroyed automatically when a frame
 464         // or dialog is destroyed, but before that you may get some memory
 465         // leaks and potential layout problems if you delete and then add
 466         // child windows.
 467
 468         // GRG, Feb/2000: commented this out when adding support for
 469         //   wxSCROLL[WIN]_THUMBRELEASE events. Also it was reported
 470         //   that this call crashed wxMotif under OS/2, so it seems
 471         //   that leaving it out is the right thing to do.
 472         // SN, Feb/2000: newgrid/griddemo shows why it is needed :-(
 473         XtDestroyWidget((Widget) GetMainWidget());
 474         SetMainWidget((WXWidget) NULL);
 475     }
 476 }
 477
 478 // ----------------------------------------------------------------------------
 479 // scrollbar management
 480 // ----------------------------------------------------------------------------
 481
 482 // Helper function
 483 void wxWindow::CreateScrollbar(wxOrientation orientation)
 484 {
 485     wxCHECK_RET( m_drawingArea, "this window can't have scrollbars" );
 486
 487     XtVaSetValues((Widget) m_scrolledWindow, XmNresizePolicy, XmRESIZE_NONE, NULL);
 488
 489     // Add scrollbars if required
 490     if (orientation == wxHORIZONTAL)
 491     {
 492         Widget hScrollBar = XtVaCreateManagedWidget ("hsb",
 493             xmScrollBarWidgetClass, (Widget) m_scrolledWindow,
 494             XmNorientation, XmHORIZONTAL,
 495             NULL);
 496         XtAddCallback (hScrollBar, XmNvalueChangedCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 497         XtAddCallback (hScrollBar, XmNdragCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 498         XtAddCallback (hScrollBar, XmNincrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 499         XtAddCallback (hScrollBar, XmNdecrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 500         XtAddCallback (hScrollBar, XmNpageIncrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 501         XtAddCallback (hScrollBar, XmNpageDecrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 502         XtAddCallback (hScrollBar, XmNtoTopCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 503         XtAddCallback (hScrollBar, XmNtoBottomCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 504
 505         XtVaSetValues (hScrollBar,
 506             XmNincrement, 1,
 507             XmNvalue, 0,
 508             NULL);
 509
 510         m_hScrollBar = (WXWidget) hScrollBar;
 511
 512         wxColour backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 513         DoChangeBackgroundColour(m_hScrollBar, backgroundColour, TRUE);
 514
 515         XtRealizeWidget(hScrollBar);
 516
 517         XtVaSetValues((Widget) m_scrolledWindow,
 518             XmNhorizontalScrollBar, (Widget) m_hScrollBar,
 519             NULL);
 520
 521         m_hScroll = TRUE;
 522
 523         wxAddWindowToTable( hScrollBar, this );
 524     }
 525
 526     if (orientation == wxVERTICAL)
 527     {
 528         Widget vScrollBar = XtVaCreateManagedWidget ("vsb",
 529             xmScrollBarWidgetClass, (Widget) m_scrolledWindow,
 530             XmNorientation, XmVERTICAL,
 531             NULL);
 532         XtAddCallback (vScrollBar, XmNvalueChangedCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 533         XtAddCallback (vScrollBar, XmNdragCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 534         XtAddCallback (vScrollBar, XmNincrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 535         XtAddCallback (vScrollBar, XmNdecrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 536         XtAddCallback (vScrollBar, XmNpageIncrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 537         XtAddCallback (vScrollBar, XmNpageDecrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 538         XtAddCallback (vScrollBar, XmNtoTopCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 539         XtAddCallback (vScrollBar, XmNtoBottomCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 540
 541         XtVaSetValues (vScrollBar,
 542             XmNincrement, 1,
 543             XmNvalue, 0,
 544             NULL);
 545
 546         m_vScrollBar = (WXWidget) vScrollBar;
 547         wxColour backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 548         DoChangeBackgroundColour(m_vScrollBar, backgroundColour, TRUE);
 549
 550         XtRealizeWidget(vScrollBar);
 551
 552         XtVaSetValues((Widget) m_scrolledWindow,
 553             XmNverticalScrollBar, (Widget) m_vScrollBar,
 554             NULL);
 555
 556         m_vScroll = TRUE;
 557
 558         wxAddWindowToTable( vScrollBar, this );
 559     }
 560
 561     XtVaSetValues((Widget) m_scrolledWindow, XmNresizePolicy, XmRESIZE_ANY, NULL);
 562 }
 563
 564 void wxWindow::DestroyScrollbar(wxOrientation orientation)
 565 {
 566     wxCHECK_RET( m_drawingArea, "this window can't have scrollbars" );
 567
 568     XtVaSetValues((Widget) m_scrolledWindow, XmNresizePolicy, XmRESIZE_NONE, NULL);
 569     // Add scrollbars if required
 570     if (orientation == wxHORIZONTAL)
 571     {
 572         if (m_hScrollBar)
 573         {
 574             wxDeleteWindowFromTable((Widget)m_hScrollBar);
 575             XtDestroyWidget((Widget) m_hScrollBar);
 576         }
 577         m_hScrollBar = (WXWidget) 0;
 578         m_hScroll = FALSE;
 579
 580         XtVaSetValues((Widget) m_scrolledWindow,
 581             XmNhorizontalScrollBar, (Widget) 0,
 582             NULL);
 583
 584     }
 585
 586     if (orientation == wxVERTICAL)
 587     {
 588         if (m_vScrollBar)
 589         {
 590             wxDeleteWindowFromTable((Widget)m_vScrollBar);
 591             XtDestroyWidget((Widget) m_vScrollBar);
 592         }
 593         m_vScrollBar = (WXWidget) 0;
 594         m_vScroll = FALSE;
 595
 596         XtVaSetValues((Widget) m_scrolledWindow,
 597             XmNverticalScrollBar, (Widget) 0,
 598             NULL);
 599
 600     }
 601     XtVaSetValues((Widget) m_scrolledWindow, XmNresizePolicy, XmRESIZE_ANY, NULL);
 602 }
 603
 604 // ---------------------------------------------------------------------------
 605 // basic operations
 606 // ---------------------------------------------------------------------------
 607
 608 void wxWindow::SetFocus()
 609 {
 610     Widget wMain = (Widget) GetMainWidget();
 611     XmProcessTraversal(wMain, XmTRAVERSE_CURRENT);
 612     XmProcessTraversal((Widget) GetMainWidget(), XmTRAVERSE_CURRENT);
 613 }
 614
 615 // Get the window with the focus
 616 wxWindow *wxWindowBase::FindFocus()
 617 {
 618     // TODO Problems:
 619     // (1) Can there be multiple focussed widgets in an application?
 620     // In which case we need to find the top-level window that's
 621     // currently active.
 622     // (2) The widget with the focus may not be in the widget table
 623     // depending on which widgets I put in the table
 624     wxWindow *winFocus = (wxWindow *)NULL;
 625     for ( wxWindowList::Node *node = wxTopLevelWindows.GetFirst();
 626           node;
 627           node = node->GetNext() )
 628     {
 629         wxWindow *win = node->GetData();
 630
 631         Widget w = XmGetFocusWidget ((Widget) win->GetTopWidget());
 632
 633         if (w != (Widget) NULL)
 634         {
 635             winFocus = wxGetWindowFromTable(w);
 636             if ( winFocus )
 637                 break;
 638         }
 639     }
 640
 641     return winFocus;
 642 }
 643
 644 bool wxWindow::Enable(bool enable)
 645 {
 646     if ( !wxWindowBase::Enable(enable) )
 647         return FALSE;
 648
 649     Widget wMain = (Widget)GetMainWidget();
 650     if ( wMain )
 651     {
 652         XtSetSensitive(wMain, enable);
 653         XmUpdateDisplay(wMain);
 654     }
 655
 656     return TRUE;
 657 }
 658
 659 bool wxWindow::Show(bool show)
 660 {
 661     if ( !wxWindowBase::Show(show) )
 662         return FALSE;
 663
 664     if (m_borderWidget || m_scrolledWindow)
 665     {
 666         MapOrUnmap(m_drawingArea, show);
 667         MapOrUnmap(m_borderWidget ? m_borderWidget : m_scrolledWindow, show);
 668     }
 669     else
 670     {
 671         if ( !MapOrUnmap(GetTopWidget(), show) )
 672             MapOrUnmap(GetMainWidget(), show);
 673     }
 674
 675 #if 0
 676     Window xwin = (Window) GetXWindow();
 677     Display *xdisp = (Display*) GetXDisplay();
 678     if (show)
 679         XMapWindow(xdisp, xwin);
 680     else
 681         XUnmapWindow(xdisp, xwin);
 682 #endif
 683
 684     return TRUE;
 685 }
 686
 687 // Raise the window to the top of the Z order
 688 void wxWindow::Raise()
 689 {
 690     Widget wTop = (Widget) GetTopWidget();
 691     Window window = XtWindow(wTop);
 692     XRaiseWindow(XtDisplay(wTop), window);
 693 }
 694
 695 // Lower the window to the bottom of the Z order
 696 void wxWindow::Lower()
 697 {
 698     Widget wTop = (Widget) GetTopWidget();
 699     Window window = XtWindow(wTop);
 700     XLowerWindow(XtDisplay(wTop), window);
 701 }
 702
 703 void wxWindow::SetTitle(const wxString& title)
 704 {
 705     XtVaSetValues((Widget)GetMainWidget(), XmNtitle, title.c_str(), NULL);
 706 }
 707
 708 wxString wxWindow::GetTitle() const
 709 {
 710     char *title;
 711     XtVaGetValues((Widget)GetMainWidget(), XmNtitle, &title, NULL);
 712
 713     return wxString(title);
 714 }
 715
 716 void wxWindow::CaptureMouse()
 717 {
 718     g_captureWindow = this;
 719     if ( m_winCaptured )
 720         return;
 721
 722     Widget wMain = (Widget)GetMainWidget();
 723     if ( wMain )
 724         XtAddGrab(wMain, TRUE, FALSE);
 725
 726     m_winCaptured = TRUE;
 727 }
 728
 729 void wxWindow::ReleaseMouse()
 730 {
 731     g_captureWindow = NULL;
 732     if ( !m_winCaptured )
 733         return;
 734
 735     Widget wMain = (Widget)GetMainWidget();
 736     if ( wMain )
 737         XtRemoveGrab(wMain);
 738
 739     m_winCaptured = FALSE;
 740 }
 741
 742 bool wxWindow::SetFont(const wxFont& font)
 743 {
 744     if ( !wxWindowBase::SetFont(font) )
 745     {
 746         // nothing to do
 747         return FALSE;
 748     }
 749
 750     ChangeFont();
 751
 752     return TRUE;
 753 }
 754
 755 bool wxWindow::SetCursor(const wxCursor& cursor)
 756 {
 757     if ( !wxWindowBase::SetCursor(cursor) )
 758     {
 759         // no change
 760         return FALSE;
 761     }
 762
 763     //    wxASSERT_MSG( m_cursor.Ok(),
 764     //                  wxT("cursor must be valid after call to the base version"));
 765     wxCursor* cursor2 = NULL;
 766     if (m_cursor.Ok())
 767         cursor2 = & m_cursor;
 768     else
 769         cursor2 = wxSTANDARD_CURSOR;
 770
 771     WXDisplay *dpy = GetXDisplay();
 772     WXCursor x_cursor = cursor2->GetXCursor(dpy);
 773
 774     Widget w = (Widget) GetMainWidget();
 775     Window win = XtWindow(w);
 776     XDefineCursor((Display*) dpy, win, (Cursor) x_cursor);
 777
 778     return TRUE;
 779 }
 780
 781 // Coordinates relative to the window
 782 void wxWindow::WarpPointer (int x, int y)
 783 {
 784     Widget wClient = (Widget)GetClientWidget();
 785
 786     XWarpPointer(XtDisplay(wClient), None, XtWindow(wClient), 0, 0, 0, 0, x, y);
 787 }
 788
 789 // ---------------------------------------------------------------------------
 790 // scrolling stuff
 791 // ---------------------------------------------------------------------------
 792
 793 int wxWindow::GetScrollPos(int orient) const
 794 {
 795     if (orient == wxHORIZONTAL)
 796         return m_scrollPosX;
 797     else
 798         return m_scrollPosY;
 799
 800 #if 0
 801     Widget scrollBar = (Widget) ((orient == wxHORIZONTAL) ? m_hScrollBar : m_vScrollBar);
 802     if (scrollBar)
 803     {
 804         int pos;
 805         XtVaGetValues(scrollBar, XmNvalue, &pos, NULL);
 806         return pos;
 807     }
 808     else
 809         return 0;
 810 #endif // 0
 811 }
 812
 813 // This now returns the whole range, not just the number of positions that we
 814 // can scroll.
 815 int wxWindow::GetScrollRange(int orient) const
 816 {
 817     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 818     wxCHECK_MSG( scrollBar, 0, "no such scrollbar" );
 819
 820     int range;
 821     XtVaGetValues(scrollBar, XmNmaximum, &range, NULL);
 822     return range;
 823 }
 824
 825 int wxWindow::GetScrollThumb(int orient) const
 826 {
 827     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 828     wxCHECK_MSG( scrollBar, 0, "no such scrollbar" );
 829
 830     int thumb;
 831     XtVaGetValues(scrollBar, XmNsliderSize, &thumb, NULL);
 832     return thumb;
 833 }
 834
 835 void wxWindow::SetScrollPos(int orient, int pos, bool WXUNUSED(refresh))
 836 {
 837     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 838
 839     if ( scrollBar )
 840     {
 841         XtVaSetValues (scrollBar, XmNvalue, pos, NULL);
 842     }
 843
 844     SetInternalScrollPos((wxOrientation)orient, pos);
 845 }
 846
 847 // New function that will replace some of the above.
 848 void wxWindow::SetScrollbar(int orient, int pos, int thumbVisible,
 849                             int range, bool WXUNUSED(refresh))
 850 {
 851     int oldW, oldH;
 852     GetSize(& oldW, & oldH);
 853
 854     if (range == 0)
 855         range = 1;
 856     if (thumbVisible == 0)
 857         thumbVisible = 1;
 858
 859     if (thumbVisible > range)
 860         thumbVisible = range;
 861
 862     // Save the old state to see if it changed
 863     WXWidget oldScrollBar = GetScrollbar((wxOrientation)orient);
 864
 865     if (orient == wxHORIZONTAL)
 866     {
 867         if (thumbVisible == range)
 868         {
 869             if (m_hScrollBar)
 870                 DestroyScrollbar(wxHORIZONTAL);
 871         }
 872         else
 873         {
 874             if (!m_hScrollBar)
 875                 CreateScrollbar(wxHORIZONTAL);
 876         }
 877     }
 878     if (orient == wxVERTICAL)
 879     {
 880         if (thumbVisible == range)
 881         {
 882             if (m_vScrollBar)
 883                 DestroyScrollbar(wxVERTICAL);
 884         }
 885         else
 886         {
 887             if (!m_vScrollBar)
 888                 CreateScrollbar(wxVERTICAL);
 889         }
 890     }
 891     WXWidget newScrollBar =  GetScrollbar((wxOrientation)orient);
 892
 893     if (oldScrollBar != newScrollBar)
 894     {
 895         // This is important! Without it, scrollbars misbehave badly.
 896         XtUnrealizeWidget((Widget) m_scrolledWindow);
 897         XmScrolledWindowSetAreas ((Widget) m_scrolledWindow, (Widget) m_hScrollBar, (Widget) m_vScrollBar, (Widget) m_drawingArea);
 898         XtRealizeWidget((Widget) m_scrolledWindow);
 899         XtManageChild((Widget) m_scrolledWindow);
 900     }
 901
 902     if (newScrollBar)
 903     {
 904         XtVaSetValues((Widget) newScrollBar,
 905         XmNvalue, pos,
 906         XmNminimum, 0,
 907         XmNmaximum, range,
 908         XmNsliderSize, thumbVisible,
 909         NULL);
 910     }
 911
 912     SetInternalScrollPos((wxOrientation)orient, pos);
 913
 914     int newW, newH;
 915     GetSize(& newW, & newH);
 916
 917     // Adjusting scrollbars can resize the canvas accidentally
 918     if (newW != oldW || newH != oldH)
 919         SetSize(-1, -1, oldW, oldH);
 920 }
 921
 922 // Does a physical scroll
 923 void wxWindow::ScrollWindow(int dx, int dy, const wxRect *rect)
 924 {
 925     int x, y, w, h;
 926     if (rect)
 927     {
 928         // Use specified rectangle
 929         x = rect->x; y = rect->y; w = rect->width; h = rect->height;
 930     }
 931     else
 932     {
 933         // Use whole client area
 934         x = 0; y = 0;
 935         GetClientSize(& w, & h);
 936     }
 937
 938     wxNode *cnode = m_children.First();
 939     while (cnode)
 940     {
 941         wxWindow *child = (wxWindow*) cnode->Data();
 942         int sx = 0;
 943         int sy = 0;
 944         child->GetSize( &sx, &sy );
 945         wxPoint pos( child->GetPosition() );
 946         child->SetSize( pos.x + dx, pos.y + dy, sx, sy, wxSIZE_ALLOW_MINUS_ONE );
 947         cnode = cnode->Next();
 948     }
 949
 950     int x1 = (dx >= 0) ? x : x - dx;
 951     int y1 = (dy >= 0) ? y : y - dy;
 952     int w1 = w - abs(dx);
 953     int h1 = h - abs(dy);
 954     int x2 = (dx >= 0) ? x + dx : x;
 955     int y2 = (dy >= 0) ? y + dy : y;
 956
 957     wxClientDC dc(this);
 958
 959     dc.SetLogicalFunction (wxCOPY);
 960
 961     Widget widget = (Widget) GetMainWidget();
 962     Window window = XtWindow(widget);
 963     Display* display = XtDisplay(widget);
 964
 965     XCopyArea(display, window, window, (GC) dc.GetGC(),
 966               x1, y1, w1, h1, x2, y2);
 967
 968     dc.SetAutoSetting(TRUE);
 969     wxBrush brush(GetBackgroundColour(), wxSOLID);
 970     dc.SetBrush(brush); // FIXME: needed?
 971
 972     // We'll add rectangles to the list of update rectangles according to which
 973     // bits we've exposed.
 974     wxList updateRects;
 975
 976     if (dx > 0)
 977     {
 978         wxRect *rect = new wxRect;
 979         rect->x = x;
 980         rect->y = y;
 981         rect->width = dx;
 982         rect->height = h;
 983
 984         XFillRectangle(display, window,
 985             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
 986
 987         rect->x = rect->x;
 988         rect->y = rect->y;
 989         rect->width = rect->width;
 990         rect->height = rect->height;
 991
 992         updateRects.Append((wxObject*) rect);
 993     }
 994     else if (dx < 0)
 995     {
 996         wxRect *rect = new wxRect;
 997
 998         rect->x = x + w + dx;
 999         rect->y = y;
1000         rect->width = -dx;
1001         rect->height = h;
1002
1003         XFillRectangle(display, window,
1004             (GC) dc.GetGC(), rect->x, rect->y, rect->width,
1005             rect->height);
1006
1007         rect->x = rect->x;
1008         rect->y = rect->y;
1009         rect->width = rect->width;
1010         rect->height = rect->height;
1011
1012         updateRects.Append((wxObject*) rect);
1013     }
1014     if (dy > 0)
1015     {
1016         wxRect *rect = new wxRect;
1017
1018         rect->x = x;
1019         rect->y = y;
1020         rect->width = w;
1021         rect->height = dy;
1022
1023         XFillRectangle(display, window,
1024             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
1025
1026         rect->x = rect->x;
1027         rect->y = rect->y;
1028         rect->width = rect->width;
1029         rect->height = rect->height;
1030
1031         updateRects.Append((wxObject*) rect);
1032     }
1033     else if (dy < 0)
1034     {
1035         wxRect *rect = new wxRect;
1036
1037         rect->x = x;
1038         rect->y = y + h + dy;
1039         rect->width = w;
1040         rect->height = -dy;
1041
1042         XFillRectangle(display, window,
1043             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
1044
1045         rect->x = rect->x;
1046         rect->y = rect->y;
1047         rect->width = rect->width;
1048         rect->height = rect->height;
1049
1050         updateRects.Append((wxObject*) rect);
1051     }
1052     dc.SetBrush(wxNullBrush);
1053
1054     // Now send expose events
1055
1056     wxNode* node = updateRects.First();
1057     while (node)
1058     {
1059         wxRect* rect = (wxRect*) node->Data();
1060         XExposeEvent event;
1061
1062         event.type = Expose;
1063         event.display = display;
1064         event.send_event = True;
1065         event.window = window;
1066
1067         event.x = rect->x;
1068         event.y = rect->y;
1069         event.width = rect->width;
1070         event.height = rect->height;
1071
1072         event.count = 0;
1073
1074         XSendEvent(display, window, False, ExposureMask, (XEvent *)&event);
1075
1076         node = node->Next();
1077
1078     }
1079
1080     // Delete the update rects
1081     node = updateRects.First();
1082     while (node)
1083     {
1084         wxRect* rect = (wxRect*) node->Data();
1085         delete rect;
1086         node = node->Next();
1087     }
1088
1089     XmUpdateDisplay((Widget) GetMainWidget());
1090 }
1091
1092 // ---------------------------------------------------------------------------
1093 // drag and drop
1094 // ---------------------------------------------------------------------------
1095
1096 #if wxUSE_DRAG_AND_DROP
1097
1098 void wxWindow::SetDropTarget(wxDropTarget * WXUNUSED(pDropTarget))
1099 {
1100     // TODO
1101 }
1102
1103 #endif
1104
1105 // Old style file-manager drag&drop
1106 void wxWindow::DragAcceptFiles(bool WXUNUSED(accept))
1107 {
1108     // TODO
1109 }
1110
1111 // ----------------------------------------------------------------------------
1112 // tooltips
1113 // ----------------------------------------------------------------------------
1114
1115 #if wxUSE_TOOLTIPS
1116
1117 void wxWindow::DoSetToolTip(wxToolTip * WXUNUSED(tooltip))
1118 {
1119     // TODO
1120 }
1121
1122 #endif // wxUSE_TOOLTIPS
1123
1124 // ----------------------------------------------------------------------------
1125 // popup menus
1126 // ----------------------------------------------------------------------------
1127
1128 bool wxWindow::DoPopupMenu(wxMenu *menu, int x, int y)
1129 {
1130     Widget widget = (Widget) GetMainWidget();
1131
1132     /* The menuId field seems to be usused, so we'll use it to
1133     indicate whether a menu is popped up or not:
1134     0: Not currently created as a popup
1135     -1: Created as a popup, but not active
1136     1: Active popup.
1137     */
1138
1139     if (menu->GetParent() && (menu->GetId() != -1))
1140         return FALSE;
1141
1142     if (menu->GetMainWidget()) {
1143         menu->DestroyMenu(TRUE);
1144     }
1145
1146     menu->SetId(1); /* Mark as popped-up */
1147     menu->CreateMenu(NULL, widget, menu);
1148     menu->SetInvokingWindow(this);
1149
1150     menu->UpdateUI();
1151
1152     //  menu->SetParent(parent);
1153     //  parent->children->Append(menu);  // Store menu for later deletion
1154
1155     Widget menuWidget = (Widget) menu->GetMainWidget();
1156
1157     int rootX = 0;
1158     int rootY = 0;
1159
1160     int deviceX = x;
1161     int deviceY = y;
1162     /*
1163     if (this->IsKindOf(CLASSINFO(wxCanvas)))
1164     {
1165     wxCanvas *canvas = (wxCanvas *) this;
1166     deviceX = canvas->GetDC ()->LogicalToDeviceX (x);
1167     deviceY = canvas->GetDC ()->LogicalToDeviceY (y);
1168     }
1169     */
1170
1171     Display *display = XtDisplay (widget);
1172     Window rootWindow = RootWindowOfScreen (XtScreen((Widget)widget));
1173     Window thisWindow = XtWindow (widget);
1174     Window childWindow;
1175     XTranslateCoordinates (display, thisWindow, rootWindow, (int) deviceX, (int) deviceY,
1176         &rootX, &rootY, &childWindow);
1177
1178     XButtonPressedEvent event;
1179     event.type = ButtonPress;
1180     event.button = 1;
1181
1182     event.x = deviceX;
1183     event.y = deviceY;
1184
1185     event.x_root = rootX;
1186     event.y_root = rootY;
1187
1188     XmMenuPosition (menuWidget, &event);
1189     XtManageChild (menuWidget);
1190
1191     return TRUE;
1192 }
1193
1194 // ---------------------------------------------------------------------------
1195 // moving and resizing
1196 // ---------------------------------------------------------------------------
1197
1198 bool wxWindow::PreResize()
1199 {
1200     return TRUE;
1201 }
1202
1203 // Get total size
1204 void wxWindow::DoGetSize(int *x, int *y) const
1205 {
1206     if (m_drawingArea)
1207     {
1208         CanvasGetSize(x, y);
1209         return;
1210     }
1211
1212     Widget widget = (Widget) GetTopWidget();
1213     Dimension xx, yy;
1214     XtVaGetValues(widget, XmNwidth, &xx, XmNheight, &yy, NULL);
1215     if(x) *x = xx; if(y) *y = yy;
1216 }
1217
1218 void wxWindow::DoGetPosition(int *x, int *y) const
1219 {
1220     if (m_drawingArea)
1221     {
1222         CanvasGetPosition(x, y);
1223         return;
1224     }
1225     Widget widget = (Widget) GetTopWidget();
1226     Position xx, yy;
1227     XtVaGetValues(widget, XmNx, &xx, XmNy, &yy, NULL);
1228
1229     // We may be faking the client origin. So a window that's really at (0, 30)
1230     // may appear (to wxWin apps) to be at (0, 0).
1231     if (GetParent())
1232     {
1233         wxPoint pt(GetParent()->GetClientAreaOrigin());
1234         xx -= pt.x;
1235         yy -= pt.y;
1236     }
1237
1238     if(x) *x = xx; if(y) *y = yy;
1239 }
1240
1241 void wxWindow::DoScreenToClient(int *x, int *y) const
1242 {
1243     Widget widget = (Widget) GetClientWidget();
1244     Display *display = XtDisplay((Widget) GetMainWidget());
1245     Window rootWindow = RootWindowOfScreen(XtScreen(widget));
1246     Window thisWindow = XtWindow(widget);
1247
1248     Window childWindow;
1249     int xx = *x;
1250     int yy = *y;
1251     XTranslateCoordinates(display, rootWindow, thisWindow, xx, yy, x, y, &childWindow);
1252 }
1253
1254 void wxWindow::DoClientToScreen(int *x, int *y) const
1255 {
1256     Widget widget = (Widget) GetClientWidget();
1257     Display *display = XtDisplay(widget);
1258     Window rootWindow = RootWindowOfScreen(XtScreen(widget));
1259     Window thisWindow = XtWindow(widget);
1260
1261     Window childWindow;
1262     int xx = *x;
1263     int yy = *y;
1264     XTranslateCoordinates(display, thisWindow, rootWindow, xx, yy, x, y, &childWindow);
1265 }
1266
1267
1268 // Get size *available for subwindows* i.e. excluding menu bar etc.
1269 void wxWindow::DoGetClientSize(int *x, int *y) const
1270 {
1271     Widget widget = (Widget) GetClientWidget();
1272     Dimension xx, yy;
1273     XtVaGetValues(widget, XmNwidth, &xx, XmNheight, &yy, NULL);
1274     if(x) *x = xx; if(y) *y = yy;
1275 }
1276
1277 void wxWindow::DoSetSize(int x, int y, int width, int height, int sizeFlags)
1278 {
1279     // A bit of optimization to help sort out the flickers.
1280     int oldX, oldY, oldW, oldH;
1281     GetSize(& oldW, & oldH);
1282     GetPosition(& oldX, & oldY);
1283
1284     if ( !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
1285     {
1286         if ( x == -1 )
1287             x = oldX;
1288         if ( y == -1 )
1289             y = oldY;
1290     }
1291
1292     if ( width == -1 )
1293         width = oldW;
1294     if ( height == -1 )
1295         height = oldH;
1296
1297     bool nothingChanged = (x == oldX) && (y == oldY) &&
1298                           (width == oldW) && (height == oldH);
1299
1300     if (!wxNoOptimize::CanOptimize())
1301     {
1302         nothingChanged = FALSE;
1303     }
1304
1305     if ( !nothingChanged )
1306     {
1307         if (m_drawingArea)
1308         {
1309             CanvasSetSize(x, y, width, height, sizeFlags);
1310             return;
1311         }
1312
1313         Widget widget = (Widget) GetTopWidget();
1314         if (!widget)
1315             return;
1316
1317         bool managed = XtIsManaged( widget );
1318         if (managed)
1319             XtUnmanageChild(widget);
1320
1321         int xx = x;
1322         int yy = y;
1323         AdjustForParentClientOrigin(xx, yy, sizeFlags);
1324
1325         DoMoveWindow(xx, yy, width, height);
1326
1327         if (managed)
1328             XtManageChild(widget);
1329
1330         // How about this bit. Maybe we don't need to generate size events
1331         // all the time -- they'll be generated when the window is sized anyway.
1332 #if 0
1333         wxSizeEvent sizeEvent(wxSize(width, height), GetId());
1334         sizeEvent.SetEventObject(this);
1335
1336         GetEventHandler()->ProcessEvent(sizeEvent);
1337 #endif // 0
1338     }
1339 }
1340
1341 void wxWindow::DoSetClientSize(int width, int height)
1342 {
1343     if (m_drawingArea)
1344     {
1345         CanvasSetClientSize(width, height);
1346         return;
1347     }
1348
1349     Widget widget = (Widget) GetTopWidget();
1350
1351     if (width > -1)
1352         XtVaSetValues(widget, XmNwidth, width, NULL);
1353     if (height > -1)
1354         XtVaSetValues(widget, XmNheight, height, NULL);
1355
1356     wxSizeEvent sizeEvent(wxSize(width, height), GetId());
1357     sizeEvent.SetEventObject(this);
1358
1359     GetEventHandler()->ProcessEvent(sizeEvent);
1360 }
1361
1362 // For implementation purposes - sometimes decorations make the client area
1363 // smaller
1364 wxPoint wxWindow::GetClientAreaOrigin() const
1365 {
1366     return wxPoint(0, 0);
1367 }
1368
1369 // Makes an adjustment to the window position (for example, a frame that has
1370 // a toolbar that it manages itself).
1371 void wxWindow::AdjustForParentClientOrigin(int& x, int& y, int sizeFlags)
1372 {
1373     if (((sizeFlags & wxSIZE_NO_ADJUSTMENTS) == 0) && GetParent())
1374     {
1375         wxPoint pt(GetParent()->GetClientAreaOrigin());
1376         x += pt.x; y += pt.y;
1377     }
1378 }
1379
1380 void wxWindow::SetSizeHints(int minW, int minH, int maxW, int maxH, int incW, int incH)
1381 {
1382     m_minWidth = minW;
1383     m_minHeight = minH;
1384     m_maxWidth = maxW;
1385     m_maxHeight = maxH;
1386
1387     wxFrame *frame = wxDynamicCast(this, wxFrame);
1388     if ( !frame )
1389     {
1390         // TODO what about dialogs?
1391         return;
1392     }
1393
1394     Widget widget = (Widget) frame->GetShellWidget();
1395
1396     if (minW > -1)
1397         XtVaSetValues(widget, XmNminWidth, minW, NULL);
1398     if (minH > -1)
1399         XtVaSetValues(widget, XmNminHeight, minH, NULL);
1400     if (maxW > -1)
1401         XtVaSetValues(widget, XmNmaxWidth, maxW, NULL);
1402     if (maxH > -1)
1403         XtVaSetValues(widget, XmNmaxHeight, maxH, NULL);
1404     if (incW > -1)
1405         XtVaSetValues(widget, XmNwidthInc, incW, NULL);
1406     if (incH > -1)
1407         XtVaSetValues(widget, XmNheightInc, incH, NULL);
1408 }
1409
1410 void wxWindow::DoMoveWindow(int x, int y, int width, int height)
1411 {
1412     XtVaSetValues((Widget)GetTopWidget(),
1413                   XmNx, x,
1414                   XmNy, y,
1415                   XmNwidth, width,
1416                   XmNheight, height,
1417                   NULL);
1418 }
1419
1420 // ---------------------------------------------------------------------------
1421 // text metrics
1422 // ---------------------------------------------------------------------------
1423
1424 int wxWindow::GetCharHeight() const
1425 {
1426     wxCHECK_MSG( m_font.Ok(), 0, "valid window font needed" );
1427
1428     WXFontStructPtr pFontStruct = m_font.GetFontStruct(1.0, GetXDisplay());
1429
1430     int direction, ascent, descent;
1431     XCharStruct overall;
1432     XTextExtents ((XFontStruct*) pFontStruct, "x", 1, &direction, &ascent,
1433         &descent, &overall);
1434
1435     //  return (overall.ascent + overall.descent);
1436     return (ascent + descent);
1437 }
1438
1439 int wxWindow::GetCharWidth() const
1440 {
1441     wxCHECK_MSG( m_font.Ok(), 0, "valid window font needed" );
1442
1443     WXFontStructPtr pFontStruct = m_font.GetFontStruct(1.0, GetXDisplay());
1444
1445     int direction, ascent, descent;
1446     XCharStruct overall;
1447     XTextExtents ((XFontStruct*) pFontStruct, "x", 1, &direction, &ascent,
1448         &descent, &overall);
1449
1450     return overall.width;
1451 }
1452
1453 void wxWindow::GetTextExtent(const wxString& string,
1454                              int *x, int *y,
1455                              int *descent, int *externalLeading,
1456                              const wxFont *theFont) const
1457 {
1458     wxFont *fontToUse = (wxFont *)theFont;
1459     if (!fontToUse)
1460         fontToUse = (wxFont *) & m_font;
1461
1462     wxCHECK_RET( fontToUse->Ok(), "valid window font needed" );
1463
1464     WXFontStructPtr pFontStruct = theFont->GetFontStruct(1.0, GetXDisplay());
1465
1466     int direction, ascent, descent2;
1467     XCharStruct overall;
1468     int slen = string.Len();
1469
1470 #if 0
1471     if (use16)
1472         XTextExtents16((XFontStruct*) pFontStruct, (XChar2b *) (char*) (const char*) string, slen, &direction,
1473         &ascent, &descent2, &overall);
1474 #endif
1475
1476     XTextExtents((XFontStruct*) pFontStruct, string, slen,
1477                  &direction, &ascent, &descent2, &overall);
1478
1479     if ( x )
1480         *x = (overall.width);
1481     if ( y )
1482         *y = (ascent + descent2);
1483     if (descent)
1484         *descent = descent2;
1485     if (externalLeading)
1486         *externalLeading = 0;
1487
1488 }
1489
1490 // ----------------------------------------------------------------------------
1491 // painting
1492 // ----------------------------------------------------------------------------
1493
1494 void wxWindow::Refresh(bool eraseBack, const wxRect *rect)
1495 {
1496     m_needsRefresh = TRUE;
1497     Display *display = XtDisplay((Widget) GetMainWidget());
1498     Window thisWindow = XtWindow((Widget) GetMainWidget());
1499
1500     XExposeEvent dummyEvent;
1501     int width, height;
1502     GetSize(&width, &height);
1503
1504     dummyEvent.type = Expose;
1505     dummyEvent.display = display;
1506     dummyEvent.send_event = True;
1507     dummyEvent.window = thisWindow;
1508     if (rect)
1509     {
1510         dummyEvent.x = rect->x;
1511         dummyEvent.y = rect->y;
1512         dummyEvent.width = rect->width;
1513         dummyEvent.height = rect->height;
1514     }
1515     else
1516     {
1517         dummyEvent.x = 0;
1518         dummyEvent.y = 0;
1519         dummyEvent.width = width;
1520         dummyEvent.height = height;
1521     }
1522     dummyEvent.count = 0;
1523
1524     if (eraseBack)
1525     {
1526         wxClientDC dc(this);
1527         wxBrush backgroundBrush(GetBackgroundColour(), wxSOLID);
1528         dc.SetBackground(backgroundBrush);
1529         if (rect)
1530             dc.Clear(*rect);
1531         else
1532             dc.Clear();
1533     }
1534
1535     XSendEvent(display, thisWindow, False, ExposureMask, (XEvent *)&dummyEvent);
1536 }
1537
1538 void wxWindow::Clear()
1539 {
1540     wxClientDC dc(this);
1541     wxBrush brush(GetBackgroundColour(), wxSOLID);
1542     dc.SetBackground(brush);
1543     dc.Clear();
1544 }
1545
1546 void wxWindow::ClearUpdateRects()
1547 {
1548     wxRectList::Node* node = m_updateRects.GetFirst();
1549     while (node)
1550     {
1551         wxRect* rect = node->GetData();
1552         delete rect;
1553         node = node->GetNext();
1554     }
1555
1556     m_updateRects.Clear();
1557 }
1558
1559 void wxWindow::DoPaint()
1560 {
1561     //TODO : make a temporary gc so we can do the XCopyArea below
1562     if (m_backingPixmap && !m_needsRefresh)
1563     {
1564       wxPaintDC dc(this);
1565
1566       GC tempGC = (GC) dc.GetBackingGC();
1567
1568       Widget widget = (Widget) GetMainWidget();
1569
1570       int scrollPosX = 0;
1571       int scrollPosY = 0;
1572
1573       // We have to test whether it's a wxScrolledWindow (hack!) because
1574       // otherwise we don't know how many pixels have been scrolled. We might
1575       // solve this in the future by defining virtual wxWindow functions to get
1576       // the scroll position in pixels. Or, each kind of scrolled window has to
1577       // implement backing stores itself, using generic wxWindows code.
1578       wxScrolledWindow* scrolledWindow = wxDynamicCast(this, wxScrolledWindow);
1579       if ( scrolledWindow )
1580       {
1581           int x, y;
1582           scrolledWindow->CalcScrolledPosition(0, 0, &x, &y);
1583
1584           scrollPosX = - x;
1585           scrollPosY = - y;
1586       }
1587
1588       // TODO: This could be optimized further by only copying the areas in the
1589       //       current update region.
1590
1591       // Only blit the part visible in the client area. The backing pixmap
1592       // always starts at 0, 0 but we may be looking at only a portion of it.
1593       wxSize clientArea = GetClientSize();
1594       int toBlitX = m_pixmapWidth - scrollPosX;
1595       int toBlitY = m_pixmapHeight - scrollPosY;
1596
1597       // Copy whichever is samller, the amount of pixmap we have to copy,
1598       // or the size of the client area.
1599       toBlitX = wxMin(toBlitX, clientArea.x);
1600       toBlitY = wxMin(toBlitY, clientArea.y);
1601
1602       // Make sure we're not negative
1603       toBlitX = wxMax(0, toBlitX);
1604       toBlitY = wxMax(0, toBlitY);
1605
1606       XCopyArea
1607       (
1608        XtDisplay(widget),
1609        (Pixmap) m_backingPixmap,
1610        XtWindow (widget),
1611        tempGC,
1612        scrollPosX, scrollPosY, // Start at the scroll position
1613        toBlitX, toBlitY,       // How much of the pixmap to copy
1614        0, 0                    // Destination
1615       );
1616     }
1617     else
1618     {
1619         // Set an erase event first
1620         wxEraseEvent eraseEvent(GetId());
1621         eraseEvent.SetEventObject(this);
1622         GetEventHandler()->ProcessEvent(eraseEvent);
1623
1624         wxPaintEvent event(GetId());
1625         event.SetEventObject(this);
1626         GetEventHandler()->ProcessEvent(event);
1627
1628         m_needsRefresh = FALSE;
1629     }
1630 }
1631
1632 // ----------------------------------------------------------------------------
1633 // event handlers
1634 // ----------------------------------------------------------------------------
1635
1636 // Responds to colour changes: passes event on to children.
1637 void wxWindow::OnSysColourChanged(wxSysColourChangedEvent& event)
1638 {
1639     wxWindowList::Node *node = GetChildren().GetFirst();
1640     while ( node )
1641     {
1642         // Only propagate to non-top-level windows
1643         wxWindow *win = node->GetData();
1644         if ( win->GetParent() )
1645         {
1646             wxSysColourChangedEvent event2;
1647             event.m_eventObject = win;
1648             win->GetEventHandler()->ProcessEvent(event2);
1649         }
1650
1651         node = node->GetNext();
1652     }
1653 }
1654
1655 void wxWindow::OnIdle(wxIdleEvent& WXUNUSED(event))
1656 {
1657     // This calls the UI-update mechanism (querying windows for
1658     // menu/toolbar/control state information)
1659     UpdateWindowUI();
1660 }
1661
1662 // ----------------------------------------------------------------------------
1663 // accelerators
1664 // ----------------------------------------------------------------------------
1665
1666 bool wxWindow::ProcessAccelerator(wxKeyEvent& event)
1667 {
1668     if (!m_acceleratorTable.Ok())
1669         return FALSE;
1670
1671     int count = m_acceleratorTable.GetCount();
1672     wxAcceleratorEntry* entries = m_acceleratorTable.GetEntries();
1673     int i;
1674     for (i = 0; i < count; i++)
1675     {
1676         wxAcceleratorEntry* entry = & (entries[i]);
1677         if (entry->MatchesEvent(event))
1678         {
1679             // Bingo, we have a match. Now find a control that matches the
1680             // entry command id.
1681
1682             // Need to go up to the top of the window hierarchy, since it might
1683             // be e.g. a menu item
1684             wxWindow* parent = this;
1685             while ( parent && !parent->IsTopLevel() )
1686                 parent = parent->GetParent();
1687
1688             if (!parent)
1689                 return FALSE;
1690
1691             wxFrame* frame = wxDynamicCast(parent, wxFrame);
1692             if ( frame )
1693             {
1694                 // Try for a menu command
1695                 if (frame->GetMenuBar())
1696                 {
1697                     wxMenuItem* item = frame->GetMenuBar()->FindItem(entry->GetCommand());
1698                     if (item)
1699                     {
1700                         wxCommandEvent commandEvent(wxEVT_COMMAND_MENU_SELECTED, entry->GetCommand());
1701                         commandEvent.SetEventObject(frame);
1702
1703                         // If ProcessEvent returns TRUE (it was handled), then
1704                         // the calling code will skip the event handling.
1705                         return frame->GetEventHandler()->ProcessEvent(commandEvent);
1706                     }
1707                 }
1708             }
1709
1710             // Find a child matching the command id
1711             wxWindow* child = parent->FindWindow(entry->GetCommand());
1712
1713             // No such child
1714             if (!child)
1715                 return FALSE;
1716
1717             // Now we process those kinds of windows that we can.
1718             // For now, only buttons.
1719             if ( wxDynamicCast(child, wxButton) )
1720             {
1721                 wxCommandEvent commandEvent (wxEVT_COMMAND_BUTTON_CLICKED, child->GetId());
1722                 commandEvent.SetEventObject(child);
1723                 return child->GetEventHandler()->ProcessEvent(commandEvent);
1724             }
1725
1726             return FALSE;
1727         } // matches event
1728     }// for
1729
1730     // We didn't match the key event against an accelerator.
1731     return FALSE;
1732 }
1733
1734 // ============================================================================
1735 // Motif-specific stuff from here on
1736 // ============================================================================
1737
1738 // ----------------------------------------------------------------------------
1739 // function which maintain the global hash table mapping Widgets to wxWindows
1740 // ----------------------------------------------------------------------------
1741
1742 bool wxAddWindowToTable(Widget w, wxWindow *win)
1743 {
1744     wxWindow *oldItem = NULL;
1745     if ((oldItem = (wxWindow *)wxWidgetHashTable->Get ((long) w)))
1746     {
1747         wxLogDebug("Widget table clash: new widget is %ld, %s",
1748                    (long)w, win->GetClassInfo()->GetClassName());
1749         return FALSE;
1750     }
1751
1752     wxWidgetHashTable->Put((long) w, win);
1753
1754     wxLogTrace("widget", "Widget 0x%08x <-> window %p (%s)",
1755                w, win, win->GetClassInfo()->GetClassName());
1756
1757     return TRUE;
1758 }
1759
1760 wxWindow *wxGetWindowFromTable(Widget w)
1761 {
1762     return (wxWindow *)wxWidgetHashTable->Get((long) w);
1763 }
1764
1765 void wxDeleteWindowFromTable(Widget w)
1766 {
1767     wxWidgetHashTable->Delete((long)w);
1768 }
1769
1770 // ----------------------------------------------------------------------------
1771 // add/remove window from the table
1772 // ----------------------------------------------------------------------------
1773
1774 // Add to hash table, add event handler
1775 bool wxWindow::AttachWidget (wxWindow* WXUNUSED(parent), WXWidget mainWidget,
1776                              WXWidget formWidget, int x, int y, int width, int height)
1777 {
1778     wxAddWindowToTable((Widget) mainWidget, this);
1779     if (CanAddEventHandler())
1780     {
1781         XtAddEventHandler((Widget) mainWidget,
1782             ButtonPressMask | ButtonReleaseMask | PointerMotionMask, // | KeyPressMask,
1783             False,
1784             wxPanelItemEventHandler,
1785             (XtPointer) this);
1786     }
1787
1788     if (!formWidget)
1789     {
1790         XtTranslations ptr;
1791         XtOverrideTranslations ((Widget) mainWidget,
1792             ptr = XtParseTranslationTable ("<Configure>: resize()"));
1793         XtFree ((char *) ptr);
1794     }
1795
1796     // Some widgets have a parent form widget, e.g. wxRadioBox
1797     if (formWidget)
1798     {
1799         if (!wxAddWindowToTable((Widget) formWidget, this))
1800             return FALSE;
1801
1802         XtTranslations ptr;
1803         XtOverrideTranslations ((Widget) formWidget,
1804             ptr = XtParseTranslationTable ("<Configure>: resize()"));
1805         XtFree ((char *) ptr);
1806     }
1807
1808     if (x == -1)
1809         x = 0;
1810     if (y == -1)
1811         y = 0;
1812     SetSize (x, y, width, height);
1813
1814     return TRUE;
1815 }
1816
1817 // Remove event handler, remove from hash table
1818 bool wxWindow::DetachWidget(WXWidget widget)
1819 {
1820     if (CanAddEventHandler())
1821     {
1822         XtRemoveEventHandler((Widget) widget,
1823             ButtonPressMask | ButtonReleaseMask | PointerMotionMask, // | KeyPressMask,
1824             False,
1825             wxPanelItemEventHandler,
1826             (XtPointer)this);
1827     }
1828
1829     wxDeleteWindowFromTable((Widget) widget);
1830     return TRUE;
1831 }
1832
1833 // ----------------------------------------------------------------------------
1834 // Motif-specific accessors
1835 // ----------------------------------------------------------------------------
1836
1837 // Get the underlying X window
1838 WXWindow wxWindow::GetXWindow() const
1839 {
1840     Widget wMain = (Widget)GetMainWidget();
1841     if ( wMain )
1842         return (WXWindow) XtWindow(wMain);
1843     else
1844         return (WXWindow) 0;
1845 }
1846
1847 // Get the underlying X display
1848 WXDisplay *wxWindow::GetXDisplay() const
1849 {
1850     Widget wMain = (Widget)GetMainWidget();
1851     if ( wMain )
1852         return (WXDisplay*) XtDisplay(wMain);
1853     else
1854         return (WXDisplay*) NULL;
1855 }
1856
1857 WXWidget wxWindow::GetMainWidget() const
1858 {
1859     if (m_drawingArea)
1860         return m_drawingArea;
1861     else
1862         return m_mainWidget;
1863 }
1864
1865 WXWidget wxWindow::GetClientWidget() const
1866 {
1867     if (m_drawingArea != (WXWidget) 0)
1868         return m_drawingArea;
1869     else
1870         return GetMainWidget();
1871 }
1872
1873 WXWidget wxWindow::GetTopWidget() const
1874 {
1875     return GetMainWidget();
1876 }
1877
1878 WXWidget wxWindow::GetLabelWidget() const
1879 {
1880     return GetMainWidget();
1881 }
1882
1883 // ----------------------------------------------------------------------------
1884 // Motif callbacks
1885 // ----------------------------------------------------------------------------
1886
1887 // All widgets should have this as their resize proc.
1888 // OnSize sent to wxWindow via client data.
1889 void wxWidgetResizeProc(Widget w, XConfigureEvent *WXUNUSED(event), String WXUNUSED(args)[], int *WXUNUSED(num_args))
1890 {
1891     wxWindow *win = wxGetWindowFromTable(w);
1892     if (!win)
1893         return;
1894
1895     if (win->PreResize())
1896     {
1897         int width, height;
1898         win->GetSize(&width, &height);
1899         wxSizeEvent sizeEvent(wxSize(width, height), win->GetId());
1900         sizeEvent.SetEventObject(win);
1901         win->GetEventHandler()->ProcessEvent(sizeEvent);
1902     }
1903 }
1904
1905 static void wxCanvasRepaintProc(Widget drawingArea,
1906                                 XtPointer clientData,
1907                                 XmDrawingAreaCallbackStruct * cbs)
1908 {
1909     if (!wxGetWindowFromTable(drawingArea))
1910         return;
1911
1912     XEvent * event = cbs->event;
1913     wxWindow * win = (wxWindow *) clientData;
1914
1915     switch (event->type)
1916     {
1917     case Expose:
1918         {
1919             win->AddUpdateRect(event->xexpose.x, event->xexpose.y,
1920                                event->xexpose.width, event->xexpose.height);
1921
1922             if (event -> xexpose.count == 0)
1923             {
1924                 win->DoPaint();
1925                 win->ClearUpdateRects();
1926             }
1927             break;
1928         }
1929     }
1930 }
1931
1932 // Unable to deal with Enter/Leave without a separate EventHandler (Motif 1.1.4)
1933 static void wxCanvasEnterLeave(Widget drawingArea,
1934                                XtPointer WXUNUSED(clientData),
1935                                XCrossingEvent * event)
1936 {
1937     XmDrawingAreaCallbackStruct cbs;
1938     XEvent ev;
1939
1940     ((XCrossingEvent &) ev) = *event;
1941
1942     cbs.reason = XmCR_INPUT;
1943     cbs.event = &ev;
1944
1945     wxCanvasInputEvent(drawingArea, (XtPointer) NULL, &cbs);
1946 }
1947
1948 // Fix to make it work under Motif 1.0 (!)
1949 static void wxCanvasMotionEvent (Widget WXUNUSED(drawingArea), XButtonEvent * WXUNUSED(event))
1950 {
1951 #if XmVersion <= 1000
1952     XmDrawingAreaCallbackStruct cbs;
1953     XEvent ev;
1954
1955     ev = *((XEvent *) event);
1956     cbs.reason = XmCR_INPUT;
1957     cbs.event = &ev;
1958
1959     wxCanvasInputEvent (drawingArea, (XtPointer) NULL, &cbs);
1960 #endif // XmVersion <= 1000
1961 }
1962
1963 static void wxCanvasInputEvent(Widget drawingArea,
1964                                XtPointer WXUNUSED(data),
1965                                XmDrawingAreaCallbackStruct * cbs)
1966 {
1967     wxWindow *canvas = wxGetWindowFromTable(drawingArea);
1968     XEvent local_event;
1969
1970     if (canvas==NULL)
1971         return;
1972
1973     if (cbs->reason != XmCR_INPUT)
1974         return;
1975
1976     local_event = *(cbs->event);    // We must keep a copy!
1977
1978     switch (local_event.xany.type)
1979     {
1980     case EnterNotify:
1981     case LeaveNotify:
1982     case ButtonPress:
1983     case ButtonRelease:
1984     case MotionNotify:
1985         {
1986             // FIXME: most of this mouse event code is more or less
1987             // duplicated in wxTranslateMouseEvent
1988             //
1989             wxEventType eventType = wxEVT_NULL;
1990
1991             if (local_event.xany.type == EnterNotify)
1992             {
1993                 //if (local_event.xcrossing.mode!=NotifyNormal)
1994                 //  return ; // Ignore grab events
1995                 eventType = wxEVT_ENTER_WINDOW;
1996                 //            canvas->GetEventHandler()->OnSetFocus();
1997             }
1998             else if (local_event.xany.type == LeaveNotify)
1999             {
2000                 //if (local_event.xcrossingr.mode!=NotifyNormal)
2001                 //  return ; // Ignore grab events
2002                 eventType = wxEVT_LEAVE_WINDOW;
2003                 //            canvas->GetEventHandler()->OnKillFocus();
2004             }
2005             else if (local_event.xany.type == MotionNotify)
2006             {
2007                 eventType = wxEVT_MOTION;
2008             }
2009
2010             else if (local_event.xany.type == ButtonPress)
2011             {
2012                 if (local_event.xbutton.button == Button1)
2013                 {
2014                     eventType = wxEVT_LEFT_DOWN;
2015                     canvas->SetButton1(TRUE);
2016                 }
2017                 else if (local_event.xbutton.button == Button2)
2018                 {
2019                     eventType = wxEVT_MIDDLE_DOWN;
2020                     canvas->SetButton2(TRUE);
2021                 }
2022                 else if (local_event.xbutton.button == Button3)
2023                 {
2024                     eventType = wxEVT_RIGHT_DOWN;
2025                     canvas->SetButton3(TRUE);
2026                 }
2027             }
2028             else if (local_event.xany.type == ButtonRelease)
2029             {
2030                 if (local_event.xbutton.button == Button1)
2031                 {
2032                     eventType = wxEVT_LEFT_UP;
2033                     canvas->SetButton1(FALSE);
2034                 }
2035                 else if (local_event.xbutton.button == Button2)
2036                 {
2037                     eventType = wxEVT_MIDDLE_UP;
2038                     canvas->SetButton2(FALSE);
2039                 }
2040                 else if (local_event.xbutton.button == Button3)
2041                 {
2042                     eventType = wxEVT_RIGHT_UP;
2043                     canvas->SetButton3(FALSE);
2044                 }
2045             }
2046
2047             wxMouseEvent wxevent (eventType);
2048
2049             wxevent.m_leftDown = ((eventType == wxEVT_LEFT_DOWN)
2050                 || (event_left_is_down (&local_event)
2051                 && (eventType != wxEVT_LEFT_UP)));
2052             wxevent.m_middleDown = ((eventType == wxEVT_MIDDLE_DOWN)
2053                 || (event_middle_is_down (&local_event)
2054                 && (eventType != wxEVT_MIDDLE_UP)));
2055             wxevent.m_rightDown = ((eventType == wxEVT_RIGHT_DOWN)
2056                 || (event_right_is_down (&local_event)
2057                 && (eventType != wxEVT_RIGHT_UP)));
2058
2059             wxevent.m_shiftDown = local_event.xbutton.state & ShiftMask;
2060             wxevent.m_controlDown = local_event.xbutton.state & ControlMask;
2061             wxevent.m_altDown = local_event.xbutton.state & Mod3Mask;
2062             wxevent.m_metaDown = local_event.xbutton.state & Mod1Mask;
2063             wxevent.SetTimestamp(local_event.xbutton.time);
2064
2065            if ( eventType == wxEVT_MOTION )
2066            {
2067                 if (local_event.xmotion.is_hint == NotifyHint)
2068                 {
2069                     Window root, child;
2070                     Display *dpy = XtDisplay (drawingArea);
2071
2072                     XQueryPointer (dpy, XtWindow (drawingArea),
2073                         &root, &child,
2074                         &local_event.xmotion.x_root,
2075                         &local_event.xmotion.y_root,
2076                         &local_event.xmotion.x,
2077                         &local_event.xmotion.y,
2078                         &local_event.xmotion.state);
2079                 }
2080                 else
2081                 {
2082                 }
2083            }
2084
2085             // Now check if we need to translate this event into a double click
2086             if (TRUE) // canvas->doubleClickAllowed)
2087             {
2088                 if (wxevent.ButtonDown())
2089                 {
2090                     long dclickTime = XtGetMultiClickTime((Display*) wxGetDisplay());
2091
2092                     // get button and time-stamp
2093                     int button = 0;
2094                     if (wxevent.LeftDown())
2095                         button = 1;
2096                     else if (wxevent.MiddleDown())
2097                         button = 2;
2098                     else if (wxevent.RightDown())
2099                         button = 3;
2100                     long ts = wxevent.GetTimestamp();
2101
2102                     // check, if single or double click
2103                     int buttonLast = canvas->GetLastClickedButton();
2104                     long lastTS = canvas->GetLastClickTime();
2105                     if ( buttonLast && buttonLast == button && (ts - lastTS) < dclickTime )
2106                     {
2107                         // I have a dclick
2108                         canvas->SetLastClick(0, ts);
2109
2110                         wxEventType typeDouble;
2111                         if ( eventType == wxEVT_LEFT_DOWN )
2112                             typeDouble = wxEVT_LEFT_DCLICK;
2113                         else if ( eventType == wxEVT_MIDDLE_DOWN )
2114                             typeDouble = wxEVT_MIDDLE_DCLICK;
2115                         else if ( eventType == wxEVT_RIGHT_DOWN )
2116                             typeDouble = wxEVT_RIGHT_DCLICK;
2117                         else
2118                             typeDouble = wxEVT_NULL;
2119
2120                         if ( typeDouble != wxEVT_NULL )
2121                         {
2122                             wxevent.SetEventType(typeDouble);
2123                         }
2124                     }
2125                     else
2126                     {
2127                         // not fast enough or different button
2128                         canvas->SetLastClick(button, ts);
2129                     }
2130                 }
2131             }
2132
2133             wxevent.SetId(canvas->GetId());
2134             wxevent.SetEventObject(canvas);
2135             wxevent.m_x = local_event.xbutton.x;
2136             wxevent.m_y = local_event.xbutton.y;
2137             canvas->GetEventHandler()->ProcessEvent (wxevent);
2138 #if 0
2139             if (eventType == wxEVT_ENTER_WINDOW ||
2140                     eventType == wxEVT_LEAVE_WINDOW ||
2141                     eventType == wxEVT_MOTION
2142                )
2143                 return;
2144 #endif // 0
2145             break;
2146       }
2147     case KeyPress:
2148         {
2149             KeySym keySym;
2150 #if 0
2151             XComposeStatus compose;
2152             (void) XLookupString ((XKeyEvent *) & local_event, wxBuffer, 20, &keySym, &compose);
2153 #endif // 0
2154
2155             (void) XLookupString ((XKeyEvent *) & local_event, wxBuffer, 20, &keySym, NULL);
2156             int id = wxCharCodeXToWX (keySym);
2157
2158             wxEventType eventType = wxEVT_CHAR;
2159
2160             wxKeyEvent event (eventType);
2161
2162             if (local_event.xkey.state & ShiftMask)
2163                 event.m_shiftDown = TRUE;
2164             if (local_event.xkey.state & ControlMask)
2165                 event.m_controlDown = TRUE;
2166             if (local_event.xkey.state & Mod3Mask)
2167                 event.m_altDown = TRUE;
2168             if (local_event.xkey.state & Mod1Mask)
2169                 event.m_metaDown = TRUE;
2170             event.SetEventObject(canvas);
2171             event.m_keyCode = id;
2172             event.SetTimestamp(local_event.xkey.time);
2173
2174             if (id > -1)
2175             {
2176                 // Implement wxFrame::OnCharHook by checking ancestor.
2177                 wxWindow *parent = canvas->GetParent();
2178                 while (parent && !parent->IsKindOf(CLASSINFO(wxFrame)))
2179                     parent = parent->GetParent();
2180
2181                 if (parent)
2182                 {
2183                     event.SetEventType(wxEVT_CHAR_HOOK);
2184                     if (parent->GetEventHandler()->ProcessEvent(event))
2185                         return;
2186                 }
2187
2188                 // For simplicity, OnKeyDown is the same as OnChar
2189                 // TODO: filter modifier key presses from OnChar
2190                 event.SetEventType(wxEVT_KEY_DOWN);
2191
2192                 // Only process OnChar if OnKeyDown didn't swallow it
2193                 if (!canvas->GetEventHandler()->ProcessEvent (event))
2194                 {
2195                   event.SetEventType(wxEVT_CHAR);
2196                   canvas->GetEventHandler()->ProcessEvent (event);
2197         }
2198             }
2199             break;
2200         }
2201     case KeyRelease:
2202         {
2203             KeySym keySym;
2204             (void) XLookupString ((XKeyEvent *) & local_event, wxBuffer, 20, &keySym, NULL);
2205             int id = wxCharCodeXToWX (keySym);
2206
2207             wxKeyEvent event (wxEVT_KEY_UP);
2208
2209             if (local_event.xkey.state & ShiftMask)
2210                 event.m_shiftDown = TRUE;
2211             if (local_event.xkey.state & ControlMask)
2212                 event.m_controlDown = TRUE;
2213             if (local_event.xkey.state & Mod3Mask)
2214                 event.m_altDown = TRUE;
2215             if (local_event.xkey.state & Mod1Mask)
2216                 event.m_metaDown = TRUE;
2217             event.SetEventObject(canvas);
2218             event.m_keyCode = id;
2219             event.SetTimestamp(local_event.xkey.time);
2220
2221             if (id > -1)
2222             {
2223                 canvas->GetEventHandler()->ProcessEvent (event);
2224             }
2225             break;
2226         }
2227     case FocusIn:
2228         {
2229             if (local_event.xfocus.detail != NotifyPointer)
2230             {
2231                 wxFocusEvent event(wxEVT_SET_FOCUS, canvas->GetId());
2232                 event.SetEventObject(canvas);
2233                 canvas->GetEventHandler()->ProcessEvent(event);
2234             }
2235             break;
2236         }
2237     case FocusOut:
2238         {
2239             if (local_event.xfocus.detail != NotifyPointer)
2240             {
2241                 wxFocusEvent event(wxEVT_KILL_FOCUS, canvas->GetId());
2242                 event.SetEventObject(canvas);
2243                 canvas->GetEventHandler()->ProcessEvent(event);
2244             }
2245             break;
2246         }
2247     default:
2248         break;
2249     }
2250 }
2251
2252 static void wxPanelItemEventHandler(Widget    wid,
2253                                     XtPointer WXUNUSED(client_data),
2254                                     XEvent*   event,
2255                                     Boolean  *continueToDispatch)
2256 {
2257     // Widget can be a label or the actual widget.
2258
2259     wxWindow *window = wxGetWindowFromTable(wid);
2260     if (window)
2261     {
2262         wxMouseEvent wxevent(0);
2263         if (wxTranslateMouseEvent(wxevent, window, wid, event))
2264         {
2265             window->GetEventHandler()->ProcessEvent(wxevent);
2266         }
2267     }
2268
2269     // TODO: probably the key to allowing default behaviour to happen. Say we
2270     // set a m_doDefault flag to FALSE at the start of this function. Then in
2271     // e.g. wxWindow::OnMouseEvent we can call Default() which sets this flag to
2272     // TRUE, indicating that default processing can happen. Thus, behaviour can
2273     // appear to be overridden just by adding an event handler and not calling
2274     // wxWindow::OnWhatever. ALSO, maybe we can use this instead of the current
2275     // way of handling drawing area events, to simplify things.
2276     *continueToDispatch = True;
2277 }
2278
2279 static void wxScrollBarCallback(Widget scrollbar,
2280                                 XtPointer clientData,
2281                                 XmScrollBarCallbackStruct *cbs)
2282 {
2283     wxWindow *win = wxGetWindowFromTable(scrollbar);
2284     int orientation = (int) clientData;
2285
2286     wxEventType eventType = wxEVT_NULL;
2287     switch (cbs->reason)
2288     {
2289     case XmCR_INCREMENT:
2290         {
2291             eventType = wxEVT_SCROLLWIN_LINEDOWN;
2292             break;
2293         }
2294     case XmCR_DECREMENT:
2295         {
2296             eventType = wxEVT_SCROLLWIN_LINEUP;
2297             break;
2298         }
2299     case XmCR_DRAG:
2300         {
2301             eventType = wxEVT_SCROLLWIN_THUMBTRACK;
2302             break;
2303         }
2304     case XmCR_VALUE_CHANGED:
2305         {
2306             eventType = wxEVT_SCROLLWIN_THUMBRELEASE;
2307             break;
2308         }
2309     case XmCR_PAGE_INCREMENT:
2310         {
2311             eventType = wxEVT_SCROLLWIN_PAGEDOWN;
2312             break;
2313         }
2314     case XmCR_PAGE_DECREMENT:
2315         {
2316             eventType = wxEVT_SCROLLWIN_PAGEUP;
2317             break;
2318         }
2319     case XmCR_TO_TOP:
2320         {
2321             eventType = wxEVT_SCROLLWIN_TOP;
2322             break;
2323         }
2324     case XmCR_TO_BOTTOM:
2325         {
2326             eventType = wxEVT_SCROLLWIN_BOTTOM;
2327             break;
2328         }
2329     default:
2330         {
2331             // Should never get here
2332             wxFAIL_MSG("Unknown scroll event.");
2333             break;
2334         }
2335     }
2336
2337     wxScrollWinEvent event(eventType,
2338                            cbs->value,
2339                            ((orientation == XmHORIZONTAL) ?
2340                             wxHORIZONTAL : wxVERTICAL));
2341     event.SetEventObject( win );
2342     win->GetEventHandler()->ProcessEvent(event);
2343 }
2344
2345 // For repainting arbitrary windows
2346 void wxUniversalRepaintProc(Widget w, XtPointer WXUNUSED(c_data), XEvent *event, char *)
2347 {
2348     Window window;
2349     Display *display;
2350
2351     wxWindow* win = wxGetWindowFromTable(w);
2352     if (!win)
2353         return;
2354
2355     switch(event -> type)
2356     {
2357     case Expose:
2358         {
2359             window = (Window) win -> GetXWindow();
2360             display = (Display *) win -> GetXDisplay();
2361
2362             if (event -> xexpose.count == 0)
2363             {
2364                 win->DoPaint();
2365
2366                 win->ClearUpdateRects();
2367             }
2368             else
2369             {
2370                 win->AddUpdateRect(event->xexpose.x, event->xexpose.y,
2371                                    event->xexpose.width, event->xexpose.height);
2372             }
2373
2374             break;
2375         }
2376     }
2377 }
2378
2379 // ----------------------------------------------------------------------------
2380 // CanvaseXXXSize() functions
2381 // ----------------------------------------------------------------------------
2382
2383 // SetSize, but as per old wxCanvas (with drawing widget etc.)
2384 void wxWindow::CanvasSetSize (int x, int y, int w, int h, int sizeFlags)
2385 {
2386     // A bit of optimization to help sort out the flickers.
2387     int oldX, oldY, oldW, oldH;
2388     GetSize(& oldW, & oldH);
2389     GetPosition(& oldX, & oldY);
2390
2391     bool useOldPos = FALSE;
2392     bool useOldSize = FALSE;
2393
2394     if ((x == -1) && (x == -1) && ((sizeFlags & wxSIZE_ALLOW_MINUS_ONE) == 0))
2395         useOldPos = TRUE;
2396     else if (x == oldX && y == oldY)
2397         useOldPos = TRUE;
2398
2399     if ((w == -1) && (h == -1))
2400         useOldSize = TRUE;
2401     else if (w == oldW && h == oldH)
2402         useOldSize = TRUE;
2403
2404     if (!wxNoOptimize::CanOptimize())
2405     {
2406         useOldSize = FALSE; useOldPos = FALSE;
2407     }
2408
2409     if (useOldPos && useOldSize)
2410         return;
2411
2412     Widget drawingArea = (Widget) m_drawingArea;
2413     bool managed = XtIsManaged(m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow);
2414
2415     if (managed)
2416         XtUnmanageChild (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow);
2417     XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_ANY, NULL);
2418
2419     int xx = x; int yy = y;
2420     AdjustForParentClientOrigin(xx, yy, sizeFlags);
2421
2422     if (!useOldPos)
2423     {
2424         if (x > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2425         {
2426             XtVaSetValues (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow,
2427                 XmNx, xx, NULL);
2428         }
2429
2430         if (y > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2431         {
2432             XtVaSetValues (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow,
2433                 XmNy, yy, NULL);
2434         }
2435     }
2436
2437     if (!useOldSize)
2438     {
2439
2440         if (w > -1)
2441         {
2442             if (m_borderWidget)
2443             {
2444                 XtVaSetValues ((Widget) m_borderWidget, XmNwidth, w, NULL);
2445                 short thick, margin;
2446                 XtVaGetValues ((Widget) m_borderWidget,
2447                     XmNshadowThickness, &thick,
2448                     XmNmarginWidth, &margin,
2449                     NULL);
2450                 w -= 2 * (thick + margin);
2451             }
2452
2453             XtVaSetValues ((Widget) m_scrolledWindow, XmNwidth, w, NULL);
2454
2455             Dimension spacing;
2456             Widget sbar;
2457             XtVaGetValues ((Widget) m_scrolledWindow,
2458                 XmNspacing, &spacing,
2459                 XmNverticalScrollBar, &sbar,
2460                 NULL);
2461             Dimension wsbar;
2462             if (sbar)
2463                 XtVaGetValues (sbar, XmNwidth, &wsbar, NULL);
2464             else
2465                 wsbar = 0;
2466
2467             w -= (spacing + wsbar);
2468
2469 #if 0
2470             XtVaSetValues(drawingArea, XmNwidth, w, NULL);
2471 #endif // 0
2472         }
2473         if (h > -1)
2474         {
2475             if (m_borderWidget)
2476             {
2477                 XtVaSetValues ((Widget) m_borderWidget, XmNheight, h, NULL);
2478                 short thick, margin;
2479                 XtVaGetValues ((Widget) m_borderWidget,
2480                     XmNshadowThickness, &thick,
2481                     XmNmarginHeight, &margin,
2482                     NULL);
2483                 h -= 2 * (thick + margin);
2484             }
2485
2486             XtVaSetValues ((Widget) m_scrolledWindow, XmNheight, h, NULL);
2487
2488             Dimension spacing;
2489             Widget sbar;
2490             XtVaGetValues ((Widget) m_scrolledWindow,
2491                 XmNspacing, &spacing,
2492                 XmNhorizontalScrollBar, &sbar,
2493                 NULL);
2494             Dimension wsbar;
2495             if (sbar)
2496                 XtVaGetValues (sbar, XmNheight, &wsbar, NULL);
2497             else
2498                 wsbar = 0;
2499
2500             h -= (spacing + wsbar);
2501
2502 #if 0
2503             XtVaSetValues(drawingArea, XmNheight, h, NULL);
2504 #endif // 0
2505         }
2506     }
2507
2508     if (managed)
2509         XtManageChild (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow);
2510     XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_NONE, NULL);
2511
2512 #if 0
2513     int ww, hh;
2514     GetClientSize (&ww, &hh);
2515     wxSizeEvent sizeEvent(wxSize(ww, hh), GetId());
2516     sizeEvent.SetEventObject(this);
2517
2518     GetEventHandler()->ProcessEvent(sizeEvent);
2519 #endif // 0
2520 }
2521
2522 void wxWindow::CanvasSetClientSize (int w, int h)
2523 {
2524     Widget drawingArea = (Widget) m_drawingArea;
2525
2526     XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_ANY, NULL);
2527
2528     if (w > -1)
2529         XtVaSetValues(drawingArea, XmNwidth, w, NULL);
2530     if (h > -1)
2531         XtVaSetValues(drawingArea, XmNheight, h, NULL);
2532
2533 #if 0
2534     // TODO: is this necessary?
2535     allowRepainting = FALSE;
2536
2537     XSync (XtDisplay (drawingArea), FALSE);
2538     XEvent event;
2539     while (XtAppPending (wxTheApp->appContext))
2540     {
2541         XFlush (XtDisplay (drawingArea));
2542         XtAppNextEvent (wxTheApp->appContext, &event);
2543         XtDispatchEvent (&event);
2544     }
2545 #endif // 0
2546
2547     XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_NONE, NULL);
2548
2549 #if 0
2550     allowRepainting = TRUE;
2551     DoRefresh ();
2552
2553     wxSizeEvent sizeEvent(wxSize(w, h), GetId());
2554     sizeEvent.SetEventObject(this);
2555
2556     GetEventHandler()->ProcessEvent(sizeEvent);
2557 #endif // 0
2558 }
2559
2560 void wxWindow::CanvasGetClientSize (int *w, int *h) const
2561 {
2562     // Must return the same thing that was set via SetClientSize
2563     Dimension xx, yy;
2564     XtVaGetValues ((Widget) m_drawingArea, XmNwidth, &xx, XmNheight, &yy, NULL);
2565     *w = xx;
2566     *h = yy;
2567 }
2568
2569 void wxWindow::CanvasGetSize (int *w, int *h) const
2570 {
2571     Dimension xx, yy;
2572     if ((Widget) m_borderWidget)
2573         XtVaGetValues ((Widget) m_borderWidget, XmNwidth, &xx, XmNheight, &yy, NULL);
2574     else if ((Widget) m_scrolledWindow)
2575         XtVaGetValues ((Widget) m_scrolledWindow, XmNwidth, &xx, XmNheight, &yy, NULL);
2576     else
2577         XtVaGetValues ((Widget) m_drawingArea, XmNwidth, &xx, XmNheight, &yy, NULL);
2578
2579     *w = xx;
2580     *h = yy;
2581 }
2582
2583 void wxWindow::CanvasGetPosition (int *x, int *y) const
2584 {
2585     Position xx, yy;
2586     XtVaGetValues (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow, XmNx, &xx, XmNy, &yy, NULL);
2587
2588     // We may be faking the client origin.
2589     // So a window that's really at (0, 30) may appear
2590     // (to wxWin apps) to be at (0, 0).
2591     if (GetParent())
2592     {
2593         wxPoint pt(GetParent()->GetClientAreaOrigin());
2594         xx -= pt.x;
2595         yy -= pt.y;
2596     }
2597
2598     *x = xx;
2599     *y = yy;
2600 }
2601
2602 // ----------------------------------------------------------------------------
2603 // TranslateXXXEvent() functions
2604 // ----------------------------------------------------------------------------
2605
2606 bool wxTranslateMouseEvent(wxMouseEvent& wxevent, wxWindow *win, Widget widget, XEvent *xevent)
2607 {
2608     switch (xevent->xany.type)
2609     {
2610         case EnterNotify:  // never received here - yes ? MB
2611         case LeaveNotify:  // never received here - yes ? MB
2612         case ButtonPress:
2613         case ButtonRelease:
2614         case MotionNotify:
2615         {
2616             wxEventType eventType = wxEVT_NULL;
2617
2618             // FIXME: this is never true I think - MB
2619             //
2620             if (xevent->xany.type == LeaveNotify)
2621             {
2622                 win->SetButton1(FALSE);
2623                 win->SetButton2(FALSE);
2624                 win->SetButton3(FALSE);
2625                 return FALSE;
2626             }
2627             else if (xevent->xany.type == MotionNotify)
2628             {
2629                 eventType = wxEVT_MOTION;
2630             }
2631             else if (xevent->xany.type == ButtonPress)
2632             {
2633                 wxevent.SetTimestamp(xevent->xbutton.time);
2634                 int button = 0;
2635                 if (xevent->xbutton.button == Button1)
2636                 {
2637                     eventType = wxEVT_LEFT_DOWN;
2638                     win->SetButton1(TRUE);
2639                     button = 1;
2640                 }
2641                 else if (xevent->xbutton.button == Button2)
2642                 {
2643                     eventType = wxEVT_MIDDLE_DOWN;
2644                     win->SetButton2(TRUE);
2645                     button = 2;
2646                 }
2647                 else if (xevent->xbutton.button == Button3)
2648                 {
2649                     eventType = wxEVT_RIGHT_DOWN;
2650                     win->SetButton3(TRUE);
2651                     button = 3;
2652                 }
2653
2654                 // check for a double click
2655                 //
2656                 long dclickTime = XtGetMultiClickTime((Display*) wxGetDisplay());
2657                 long ts = wxevent.GetTimestamp();
2658
2659                 int buttonLast = win->GetLastClickedButton();
2660                 long lastTS = win->GetLastClickTime();
2661                 if ( buttonLast && buttonLast == button && (ts - lastTS) < dclickTime )
2662                 {
2663                     // I have a dclick
2664                     win->SetLastClick(0, ts);
2665                     if ( eventType == wxEVT_LEFT_DOWN )
2666                         eventType = wxEVT_LEFT_DCLICK;
2667                     else if ( eventType == wxEVT_MIDDLE_DOWN )
2668                         eventType = wxEVT_MIDDLE_DCLICK;
2669                     else if ( eventType == wxEVT_RIGHT_DOWN )
2670                         eventType = wxEVT_RIGHT_DCLICK;
2671                 }
2672                 else
2673                 {
2674                     // not fast enough or different button
2675                     win->SetLastClick(button, ts);
2676                 }
2677             }
2678             else if (xevent->xany.type == ButtonRelease)
2679             {
2680                 if (xevent->xbutton.button == Button1)
2681                 {
2682                     eventType = wxEVT_LEFT_UP;
2683                     win->SetButton1(FALSE);
2684                 }
2685                 else if (xevent->xbutton.button == Button2)
2686                 {
2687                     eventType = wxEVT_MIDDLE_UP;
2688                     win->SetButton2(FALSE);
2689                 }
2690                 else if (xevent->xbutton.button == Button3)
2691                 {
2692                     eventType = wxEVT_RIGHT_UP;
2693                     win->SetButton3(FALSE);
2694                 }
2695                 else return FALSE;
2696             }
2697             else
2698             {
2699                 return FALSE;
2700             }
2701
2702             wxevent.SetEventType(eventType);
2703
2704             Position x1, y1;
2705             XtVaGetValues(widget, XmNx, &x1, XmNy, &y1, NULL);
2706
2707             int x2, y2;
2708             win->GetPosition(&x2, &y2);
2709
2710             // The button x/y must be translated to wxWindows
2711             // window space - the widget might be a label or button,
2712             // within a form.
2713             int dx = 0;
2714             int dy = 0;
2715             if (widget != (Widget)win->GetMainWidget())
2716             {
2717                 dx = x1;
2718                 dy = y1;
2719             }
2720
2721             wxevent.m_x = xevent->xbutton.x + dx;
2722             wxevent.m_y = xevent->xbutton.y + dy;
2723
2724             wxevent.m_leftDown = ((eventType == wxEVT_LEFT_DOWN)
2725                 || (event_left_is_down (xevent)
2726                 && (eventType != wxEVT_LEFT_UP)));
2727             wxevent.m_middleDown = ((eventType == wxEVT_MIDDLE_DOWN)
2728                 || (event_middle_is_down (xevent)
2729                 && (eventType != wxEVT_MIDDLE_UP)));
2730             wxevent.m_rightDown = ((eventType == wxEVT_RIGHT_DOWN)
2731                 || (event_right_is_down (xevent)
2732                 && (eventType != wxEVT_RIGHT_UP)));
2733
2734             wxevent.m_shiftDown = xevent->xbutton.state & ShiftMask;
2735             wxevent.m_controlDown = xevent->xbutton.state & ControlMask;
2736             wxevent.m_altDown = xevent->xbutton.state & Mod3Mask;
2737             wxevent.m_metaDown = xevent->xbutton.state & Mod1Mask;
2738
2739             wxevent.SetId(win->GetId());
2740             wxevent.SetEventObject(win);
2741
2742             return TRUE;
2743         }
2744     }
2745     return FALSE;
2746 }
2747
2748 bool wxTranslateKeyEvent(wxKeyEvent& wxevent, wxWindow *win, Widget WXUNUSED(widget), XEvent *xevent)
2749 {
2750     switch (xevent->xany.type)
2751     {
2752     case KeyPress:
2753     case KeyRelease:
2754         {
2755             char buf[20];
2756
2757             KeySym keySym;
2758 #if 0
2759             XComposeStatus compose;
2760             (void) XLookupString ((XKeyEvent *) xevent, buf, 20, &keySym, &compose);
2761 #endif // 0
2762             (void) XLookupString ((XKeyEvent *) xevent, buf, 20, &keySym, NULL);
2763             int id = wxCharCodeXToWX (keySym);
2764
2765             if (xevent->xkey.state & ShiftMask)
2766                 wxevent.m_shiftDown = TRUE;
2767             if (xevent->xkey.state & ControlMask)
2768                 wxevent.m_controlDown = TRUE;
2769             if (xevent->xkey.state & Mod3Mask)
2770                 wxevent.m_altDown = TRUE;
2771             if (xevent->xkey.state & Mod1Mask)
2772                 wxevent.m_metaDown = TRUE;
2773             wxevent.SetEventObject(win);
2774             wxevent.m_keyCode = id;
2775             wxevent.SetTimestamp(xevent->xkey.time);
2776
2777             wxevent.m_x = xevent->xbutton.x;
2778             wxevent.m_y = xevent->xbutton.y;
2779
2780             if (id > -1)
2781                 return TRUE;
2782             else
2783                 return FALSE;
2784             break;
2785         }
2786     default:
2787         break;
2788     }
2789     return FALSE;
2790 }
2791
2792 // ----------------------------------------------------------------------------
2793 // Colour stuff
2794 // ----------------------------------------------------------------------------
2795
2796 #define YAllocColor XAllocColor
2797 XColor g_itemColors[5];
2798 int wxComputeColours (Display *display, wxColour * back, wxColour * fore)
2799 {
2800     int result;
2801     static XmColorProc colorProc;
2802
2803     result = wxNO_COLORS;
2804
2805     if (back)
2806     {
2807         g_itemColors[0].red = (((long) back->Red ()) << 8);
2808         g_itemColors[0].green = (((long) back->Green ()) << 8);
2809         g_itemColors[0].blue = (((long) back->Blue ()) << 8);
2810         g_itemColors[0].flags = DoRed | DoGreen | DoBlue;
2811         if (colorProc == (XmColorProc) NULL)
2812         {
2813             // Get a ptr to the actual function
2814             colorProc = XmSetColorCalculation ((XmColorProc) NULL);
2815             // And set it back to motif.
2816             XmSetColorCalculation (colorProc);
2817         }
2818         (*colorProc) (&g_itemColors[wxBACK_INDEX],
2819             &g_itemColors[wxFORE_INDEX],
2820             &g_itemColors[wxSELE_INDEX],
2821             &g_itemColors[wxTOPS_INDEX],
2822             &g_itemColors[wxBOTS_INDEX]);
2823         result = wxBACK_COLORS;
2824     }
2825     if (fore)
2826     {
2827         g_itemColors[wxFORE_INDEX].red = (((long) fore->Red ()) << 8);
2828         g_itemColors[wxFORE_INDEX].green = (((long) fore->Green ()) << 8);
2829         g_itemColors[wxFORE_INDEX].blue = (((long) fore->Blue ()) << 8);
2830         g_itemColors[wxFORE_INDEX].flags = DoRed | DoGreen | DoBlue;
2831         if (result == wxNO_COLORS)
2832             result = wxFORE_COLORS;
2833     }
2834
2835     Display *dpy = display;
2836     Colormap cmap = (Colormap) wxTheApp->GetMainColormap((WXDisplay*) dpy);
2837
2838     if (back)
2839     {
2840         /* 5 Colours to allocate */
2841         for (int i = 0; i < 5; i++)
2842             if (!YAllocColor (dpy, cmap, &g_itemColors[i]))
2843                 result = wxNO_COLORS;
2844     }
2845     else if (fore)
2846     {
2847         /* Only 1 colour to allocate */
2848         if (!YAllocColor (dpy, cmap, &g_itemColors[wxFORE_INDEX]))
2849             result = wxNO_COLORS;
2850     }
2851
2852     return (result);
2853
2854 }
2855
2856 // Changes the foreground and background colours to be derived from the current
2857 // background colour. To change the foreground colour, you must call
2858 // SetForegroundColour explicitly.
2859 void wxWindow::ChangeBackgroundColour()
2860 {
2861     WXWidget mainWidget = GetMainWidget();
2862     if ( mainWidget )
2863         DoChangeBackgroundColour(mainWidget, m_backgroundColour);
2864
2865     // This not necessary
2866 #if 0
2867
2868     if (m_scrolledWindow && (GetMainWidget() != m_scrolledWindow))
2869     {
2870         DoChangeBackgroundColour(m_scrolledWindow, m_backgroundColour);
2871         // Have to set the scrollbar colours back since
2872         // the scrolled window seemed to change them
2873         wxColour backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
2874
2875         if (m_hScrollBar)
2876             DoChangeBackgroundColour(m_hScrollBar, backgroundColour);
2877         if (m_vScrollBar)
2878             DoChangeBackgroundColour(m_vScrollBar, backgroundColour);
2879     }
2880 #endif
2881 }
2882
2883 void wxWindow::ChangeForegroundColour()
2884 {
2885     WXWidget mainWidget = GetMainWidget();
2886     if ( mainWidget )
2887         DoChangeForegroundColour(mainWidget, m_foregroundColour);
2888     if ( m_scrolledWindow && mainWidget != m_scrolledWindow )
2889         DoChangeForegroundColour(m_scrolledWindow, m_foregroundColour);
2890 }
2891
2892 // Change a widget's foreground and background colours.
2893 void wxWindow::DoChangeForegroundColour(WXWidget widget, wxColour& foregroundColour)
2894 {
2895     // When should we specify the foreground, if it's calculated
2896     // by wxComputeColours?
2897     // Solution: say we start with the default (computed) foreground colour.
2898     // If we call SetForegroundColour explicitly for a control or window,
2899     // then the foreground is changed.
2900     // Therefore SetBackgroundColour computes the foreground colour, and
2901     // SetForegroundColour changes the foreground colour. The ordering is
2902     // important.
2903
2904     Widget w = (Widget)widget;
2905     XtVaSetValues(
2906                   w,
2907                   XmNforeground, foregroundColour.AllocColour(XtDisplay(w)),
2908                   NULL
2909                  );
2910 }
2911
2912 void wxWindow::DoChangeBackgroundColour(WXWidget widget, wxColour& backgroundColour, bool changeArmColour)
2913 {
2914     wxComputeColours (XtDisplay((Widget) widget), & backgroundColour,
2915         (wxColour*) NULL);
2916
2917     XtVaSetValues ((Widget) widget,
2918         XmNbackground, g_itemColors[wxBACK_INDEX].pixel,
2919         XmNtopShadowColor, g_itemColors[wxTOPS_INDEX].pixel,
2920         XmNbottomShadowColor, g_itemColors[wxBOTS_INDEX].pixel,
2921         XmNforeground, g_itemColors[wxFORE_INDEX].pixel,
2922         NULL);
2923
2924     if (changeArmColour)
2925         XtVaSetValues ((Widget) widget,
2926         XmNarmColor, g_itemColors[wxSELE_INDEX].pixel,
2927         NULL);
2928 }
2929
2930 bool wxWindow::SetBackgroundColour(const wxColour& col)
2931 {
2932     if ( !wxWindowBase::SetBackgroundColour(col) )
2933         return FALSE;
2934
2935     ChangeBackgroundColour();
2936
2937     return TRUE;
2938 }
2939
2940 bool wxWindow::SetForegroundColour(const wxColour& col)
2941 {
2942     if ( !wxWindowBase::SetForegroundColour(col) )
2943         return FALSE;
2944
2945     ChangeForegroundColour();
2946
2947     return TRUE;
2948 }
2949
2950 void wxWindow::ChangeFont(bool keepOriginalSize)
2951 {
2952     // Note that this causes the widget to be resized back
2953     // to its original size! We therefore have to set the size
2954     // back again. TODO: a better way in Motif?
2955     Widget w = (Widget) GetLabelWidget(); // Usually the main widget
2956     if (w && m_font.Ok())
2957     {
2958         int width, height, width1, height1;
2959         GetSize(& width, & height);
2960
2961         // lesstif 0.87 hangs here
2962 #ifndef LESSTIF_VERSION
2963         XtVaSetValues (w,
2964             XmNfontList, (XmFontList) m_font.GetFontList(1.0, XtDisplay(w)),
2965             NULL);
2966 #endif
2967
2968         GetSize(& width1, & height1);
2969         if (keepOriginalSize && (width != width1 || height != height1))
2970         {
2971             SetSize(-1, -1, width, height);
2972         }
2973     }
2974 }
2975
2976 // ----------------------------------------------------------------------------
2977 // global functions
2978 // ----------------------------------------------------------------------------
2979
2980 wxWindow *wxGetActiveWindow()
2981 {
2982     // TODO
2983     wxFAIL_MSG("Not implemented");
2984     return NULL;
2985 }
2986
2987 /* static */
2988 wxWindow *wxWindowBase::GetCapture()
2989 {
2990     return (wxWindow *)g_captureWindow;
2991 }
2992
2993
2994 // Find the wxWindow at the current mouse position, returning the mouse
2995 // position.
2996 wxWindow* wxFindWindowAtPointer(wxPoint& pt)
2997 {
2998     return wxFindWindowAtPoint(wxGetMousePosition());
2999 }
3000
3001 // Get the current mouse position.
3002 wxPoint wxGetMousePosition()
3003 {
3004     Display *display = (Display*) wxGetDisplay();
3005     Window rootWindow = RootWindowOfScreen (DefaultScreenOfDisplay(display));
3006     Window rootReturn, childReturn;
3007     int rootX, rootY, winX, winY;
3008     unsigned int maskReturn;
3009
3010     XQueryPointer (display,
3011                    rootWindow,
3012                    &rootReturn,
3013                    &childReturn,
3014                    &rootX, &rootY, &winX, &winY, &maskReturn);
3015     return wxPoint(rootX, rootY);
3016 }
3017
3018
3019 // ----------------------------------------------------------------------------
3020 // wxNoOptimize: switch off size optimization
3021 // ----------------------------------------------------------------------------
3022
3023 int wxNoOptimize::ms_count = 0;
3024