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::DoCaptureMouse()
 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::DoReleaseMouse()
 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 = 0;
 821     if (scrollBar)
 822         XtVaGetValues(scrollBar, XmNmaximum, &range, NULL);
 823     return range;
 824 }
 825
 826 int wxWindow::GetScrollThumb(int orient) const
 827 {
 828     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 829     wxCHECK_MSG( scrollBar, 0, "no such scrollbar" );
 830
 831     int thumb;
 832     XtVaGetValues(scrollBar, XmNsliderSize, &thumb, NULL);
 833     return thumb;
 834 }
 835
 836 void wxWindow::SetScrollPos(int orient, int pos, bool WXUNUSED(refresh))
 837 {
 838     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 839
 840     if ( scrollBar )
 841     {
 842         XtVaSetValues (scrollBar, XmNvalue, pos, NULL);
 843     }
 844
 845     SetInternalScrollPos((wxOrientation)orient, pos);
 846 }
 847
 848 // New function that will replace some of the above.
 849 void wxWindow::SetScrollbar(int orient, int pos, int thumbVisible,
 850                             int range, bool WXUNUSED(refresh))
 851 {
 852     int oldW, oldH;
 853     GetSize(& oldW, & oldH);
 854
 855     if (range == 0)
 856         range = 1;
 857     if (thumbVisible == 0)
 858         thumbVisible = 1;
 859
 860     if (thumbVisible > range)
 861         thumbVisible = range;
 862
 863     // Save the old state to see if it changed
 864     WXWidget oldScrollBar = GetScrollbar((wxOrientation)orient);
 865
 866     if (orient == wxHORIZONTAL)
 867     {
 868         if (thumbVisible == range)
 869         {
 870             if (m_hScrollBar)
 871                 DestroyScrollbar(wxHORIZONTAL);
 872         }
 873         else
 874         {
 875             if (!m_hScrollBar)
 876                 CreateScrollbar(wxHORIZONTAL);
 877         }
 878     }
 879     if (orient == wxVERTICAL)
 880     {
 881         if (thumbVisible == range)
 882         {
 883             if (m_vScrollBar)
 884                 DestroyScrollbar(wxVERTICAL);
 885         }
 886         else
 887         {
 888             if (!m_vScrollBar)
 889                 CreateScrollbar(wxVERTICAL);
 890         }
 891     }
 892     WXWidget newScrollBar =  GetScrollbar((wxOrientation)orient);
 893
 894     if (oldScrollBar != newScrollBar)
 895     {
 896         // This is important! Without it, scrollbars misbehave badly.
 897         XtUnrealizeWidget((Widget) m_scrolledWindow);
 898         XmScrolledWindowSetAreas ((Widget) m_scrolledWindow, (Widget) m_hScrollBar, (Widget) m_vScrollBar, (Widget) m_drawingArea);
 899         XtRealizeWidget((Widget) m_scrolledWindow);
 900         XtManageChild((Widget) m_scrolledWindow);
 901     }
 902
 903     if (newScrollBar)
 904     {
 905         XtVaSetValues((Widget) newScrollBar,
 906         XmNvalue, pos,
 907         XmNminimum, 0,
 908         XmNmaximum, range,
 909         XmNsliderSize, thumbVisible,
 910         NULL);
 911     }
 912
 913     SetInternalScrollPos((wxOrientation)orient, pos);
 914
 915     int newW, newH;
 916     GetSize(& newW, & newH);
 917
 918     // Adjusting scrollbars can resize the canvas accidentally
 919     if (newW != oldW || newH != oldH)
 920         SetSize(-1, -1, oldW, oldH);
 921 }
 922
 923 // Does a physical scroll
 924 void wxWindow::ScrollWindow(int dx, int dy, const wxRect *rect)
 925 {
 926     int x, y, w, h;
 927     if (rect)
 928     {
 929         // Use specified rectangle
 930         x = rect->x; y = rect->y; w = rect->width; h = rect->height;
 931     }
 932     else
 933     {
 934         // Use whole client area
 935         x = 0; y = 0;
 936         GetClientSize(& w, & h);
 937     }
 938
 939     wxNode *cnode = m_children.First();
 940     while (cnode)
 941     {
 942         wxWindow *child = (wxWindow*) cnode->Data();
 943         int sx = 0;
 944         int sy = 0;
 945         child->GetSize( &sx, &sy );
 946         wxPoint pos( child->GetPosition() );
 947         child->SetSize( pos.x + dx, pos.y + dy, sx, sy, wxSIZE_ALLOW_MINUS_ONE );
 948         cnode = cnode->Next();
 949     }
 950
 951     int x1 = (dx >= 0) ? x : x - dx;
 952     int y1 = (dy >= 0) ? y : y - dy;
 953     int w1 = w - abs(dx);
 954     int h1 = h - abs(dy);
 955     int x2 = (dx >= 0) ? x + dx : x;
 956     int y2 = (dy >= 0) ? y + dy : y;
 957
 958     wxClientDC dc(this);
 959
 960     dc.SetLogicalFunction (wxCOPY);
 961
 962     Widget widget = (Widget) GetMainWidget();
 963     Window window = XtWindow(widget);
 964     Display* display = XtDisplay(widget);
 965
 966     XCopyArea(display, window, window, (GC) dc.GetGC(),
 967               x1, y1, w1, h1, x2, y2);
 968
 969     dc.SetAutoSetting(TRUE);
 970     wxBrush brush(GetBackgroundColour(), wxSOLID);
 971     dc.SetBrush(brush); // FIXME: needed?
 972
 973     // We'll add rectangles to the list of update rectangles according to which
 974     // bits we've exposed.
 975     wxList updateRects;
 976
 977     if (dx > 0)
 978     {
 979         wxRect *rect = new wxRect;
 980         rect->x = x;
 981         rect->y = y;
 982         rect->width = dx;
 983         rect->height = h;
 984
 985         XFillRectangle(display, window,
 986             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
 987
 988         rect->x = rect->x;
 989         rect->y = rect->y;
 990         rect->width = rect->width;
 991         rect->height = rect->height;
 992
 993         updateRects.Append((wxObject*) rect);
 994     }
 995     else if (dx < 0)
 996     {
 997         wxRect *rect = new wxRect;
 998
 999         rect->x = x + w + dx;
1000         rect->y = y;
1001         rect->width = -dx;
1002         rect->height = h;
1003
1004         XFillRectangle(display, window,
1005             (GC) dc.GetGC(), rect->x, rect->y, rect->width,
1006             rect->height);
1007
1008         rect->x = rect->x;
1009         rect->y = rect->y;
1010         rect->width = rect->width;
1011         rect->height = rect->height;
1012
1013         updateRects.Append((wxObject*) rect);
1014     }
1015     if (dy > 0)
1016     {
1017         wxRect *rect = new wxRect;
1018
1019         rect->x = x;
1020         rect->y = y;
1021         rect->width = w;
1022         rect->height = dy;
1023
1024         XFillRectangle(display, window,
1025             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
1026
1027         rect->x = rect->x;
1028         rect->y = rect->y;
1029         rect->width = rect->width;
1030         rect->height = rect->height;
1031
1032         updateRects.Append((wxObject*) rect);
1033     }
1034     else if (dy < 0)
1035     {
1036         wxRect *rect = new wxRect;
1037
1038         rect->x = x;
1039         rect->y = y + h + dy;
1040         rect->width = w;
1041         rect->height = -dy;
1042
1043         XFillRectangle(display, window,
1044             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
1045
1046         rect->x = rect->x;
1047         rect->y = rect->y;
1048         rect->width = rect->width;
1049         rect->height = rect->height;
1050
1051         updateRects.Append((wxObject*) rect);
1052     }
1053     dc.SetBrush(wxNullBrush);
1054
1055     // Now send expose events
1056
1057     wxNode* node = updateRects.First();
1058     while (node)
1059     {
1060         wxRect* rect = (wxRect*) node->Data();
1061         XExposeEvent event;
1062
1063         event.type = Expose;
1064         event.display = display;
1065         event.send_event = True;
1066         event.window = window;
1067
1068         event.x = rect->x;
1069         event.y = rect->y;
1070         event.width = rect->width;
1071         event.height = rect->height;
1072
1073         event.count = 0;
1074
1075         XSendEvent(display, window, False, ExposureMask, (XEvent *)&event);
1076
1077         node = node->Next();
1078
1079     }
1080
1081     // Delete the update rects
1082     node = updateRects.First();
1083     while (node)
1084     {
1085         wxRect* rect = (wxRect*) node->Data();
1086         delete rect;
1087         node = node->Next();
1088     }
1089
1090     XmUpdateDisplay((Widget) GetMainWidget());
1091 }
1092
1093 // ---------------------------------------------------------------------------
1094 // drag and drop
1095 // ---------------------------------------------------------------------------
1096
1097 #if wxUSE_DRAG_AND_DROP
1098
1099 void wxWindow::SetDropTarget(wxDropTarget * WXUNUSED(pDropTarget))
1100 {
1101     // TODO
1102 }
1103
1104 #endif
1105
1106 // Old style file-manager drag&drop
1107 void wxWindow::DragAcceptFiles(bool WXUNUSED(accept))
1108 {
1109     // TODO
1110 }
1111
1112 // ----------------------------------------------------------------------------
1113 // tooltips
1114 // ----------------------------------------------------------------------------
1115
1116 #if wxUSE_TOOLTIPS
1117
1118 void wxWindow::DoSetToolTip(wxToolTip * WXUNUSED(tooltip))
1119 {
1120     // TODO
1121 }
1122
1123 #endif // wxUSE_TOOLTIPS
1124
1125 // ----------------------------------------------------------------------------
1126 // popup menus
1127 // ----------------------------------------------------------------------------
1128
1129 bool wxWindow::DoPopupMenu(wxMenu *menu, int x, int y)
1130 {
1131     Widget widget = (Widget) GetMainWidget();
1132
1133     /* The menuId field seems to be usused, so we'll use it to
1134     indicate whether a menu is popped up or not:
1135     0: Not currently created as a popup
1136     -1: Created as a popup, but not active
1137     1: Active popup.
1138     */
1139
1140     if (menu->GetParent() && (menu->GetId() != -1))
1141         return FALSE;
1142
1143     if (menu->GetMainWidget()) {
1144         menu->DestroyMenu(TRUE);
1145     }
1146
1147     menu->SetId(1); /* Mark as popped-up */
1148     menu->CreateMenu(NULL, widget, menu);
1149     menu->SetInvokingWindow(this);
1150
1151     menu->UpdateUI();
1152
1153     //  menu->SetParent(parent);
1154     //  parent->children->Append(menu);  // Store menu for later deletion
1155
1156     Widget menuWidget = (Widget) menu->GetMainWidget();
1157
1158     int rootX = 0;
1159     int rootY = 0;
1160
1161     int deviceX = x;
1162     int deviceY = y;
1163     /*
1164     if (this->IsKindOf(CLASSINFO(wxCanvas)))
1165     {
1166     wxCanvas *canvas = (wxCanvas *) this;
1167     deviceX = canvas->GetDC ()->LogicalToDeviceX (x);
1168     deviceY = canvas->GetDC ()->LogicalToDeviceY (y);
1169     }
1170     */
1171
1172     Display *display = XtDisplay (widget);
1173     Window rootWindow = RootWindowOfScreen (XtScreen((Widget)widget));
1174     Window thisWindow = XtWindow (widget);
1175     Window childWindow;
1176     XTranslateCoordinates (display, thisWindow, rootWindow, (int) deviceX, (int) deviceY,
1177         &rootX, &rootY, &childWindow);
1178
1179     XButtonPressedEvent event;
1180     event.type = ButtonPress;
1181     event.button = 1;
1182
1183     event.x = deviceX;
1184     event.y = deviceY;
1185
1186     event.x_root = rootX;
1187     event.y_root = rootY;
1188
1189     XmMenuPosition (menuWidget, &event);
1190     XtManageChild (menuWidget);
1191
1192     return TRUE;
1193 }
1194
1195 // ---------------------------------------------------------------------------
1196 // moving and resizing
1197 // ---------------------------------------------------------------------------
1198
1199 bool wxWindow::PreResize()
1200 {
1201     return TRUE;
1202 }
1203
1204 // Get total size
1205 void wxWindow::DoGetSize(int *x, int *y) const
1206 {
1207     if (m_drawingArea)
1208     {
1209         CanvasGetSize(x, y);
1210         return;
1211     }
1212
1213     Widget widget = (Widget) GetTopWidget();
1214     Dimension xx, yy;
1215     XtVaGetValues(widget, XmNwidth, &xx, XmNheight, &yy, NULL);
1216     if(x) *x = xx; if(y) *y = yy;
1217 }
1218
1219 void wxWindow::DoGetPosition(int *x, int *y) const
1220 {
1221     if (m_drawingArea)
1222     {
1223         CanvasGetPosition(x, y);
1224         return;
1225     }
1226     Widget widget = (Widget) GetTopWidget();
1227     Position xx, yy;
1228     XtVaGetValues(widget, XmNx, &xx, XmNy, &yy, NULL);
1229
1230     // We may be faking the client origin. So a window that's really at (0, 30)
1231     // may appear (to wxWin apps) to be at (0, 0).
1232     if (GetParent())
1233     {
1234         wxPoint pt(GetParent()->GetClientAreaOrigin());
1235         xx -= pt.x;
1236         yy -= pt.y;
1237     }
1238
1239     if(x) *x = xx; if(y) *y = yy;
1240 }
1241
1242 void wxWindow::DoScreenToClient(int *x, int *y) const
1243 {
1244     Widget widget = (Widget) GetClientWidget();
1245     Display *display = XtDisplay((Widget) GetMainWidget());
1246     Window rootWindow = RootWindowOfScreen(XtScreen(widget));
1247     Window thisWindow = XtWindow(widget);
1248
1249     Window childWindow;
1250     int xx = *x;
1251     int yy = *y;
1252     XTranslateCoordinates(display, rootWindow, thisWindow, xx, yy, x, y, &childWindow);
1253 }
1254
1255 void wxWindow::DoClientToScreen(int *x, int *y) const
1256 {
1257     Widget widget = (Widget) GetClientWidget();
1258     Display *display = XtDisplay(widget);
1259     Window rootWindow = RootWindowOfScreen(XtScreen(widget));
1260     Window thisWindow = XtWindow(widget);
1261
1262     Window childWindow;
1263     int xx = *x;
1264     int yy = *y;
1265     XTranslateCoordinates(display, thisWindow, rootWindow, xx, yy, x, y, &childWindow);
1266 }
1267
1268
1269 // Get size *available for subwindows* i.e. excluding menu bar etc.
1270 void wxWindow::DoGetClientSize(int *x, int *y) const
1271 {
1272     Widget widget = (Widget) GetClientWidget();
1273     Dimension xx, yy;
1274     XtVaGetValues(widget, XmNwidth, &xx, XmNheight, &yy, NULL);
1275     if(x) *x = xx; if(y) *y = yy;
1276 }
1277
1278 void wxWindow::DoSetSize(int x, int y, int width, int height, int sizeFlags)
1279 {
1280     // A bit of optimization to help sort out the flickers.
1281     int oldX, oldY, oldW, oldH;
1282     GetSize(& oldW, & oldH);
1283     GetPosition(& oldX, & oldY);
1284
1285     if ( !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
1286     {
1287         if ( x == -1 )
1288             x = oldX;
1289         if ( y == -1 )
1290             y = oldY;
1291     }
1292
1293     if ( width == -1 )
1294         width = oldW;
1295     if ( height == -1 )
1296         height = oldH;
1297
1298     bool nothingChanged = (x == oldX) && (y == oldY) &&
1299                           (width == oldW) && (height == oldH);
1300
1301     if (!wxNoOptimize::CanOptimize())
1302     {
1303         nothingChanged = FALSE;
1304     }
1305
1306     if ( !nothingChanged )
1307     {
1308         if (m_drawingArea)
1309         {
1310             CanvasSetSize(x, y, width, height, sizeFlags);
1311             return;
1312         }
1313
1314         Widget widget = (Widget) GetTopWidget();
1315         if (!widget)
1316             return;
1317
1318         bool managed = XtIsManaged( widget );
1319         if (managed)
1320             XtUnmanageChild(widget);
1321
1322         int xx = x;
1323         int yy = y;
1324         AdjustForParentClientOrigin(xx, yy, sizeFlags);
1325
1326         DoMoveWindow(xx, yy, width, height);
1327
1328         if (managed)
1329             XtManageChild(widget);
1330
1331         // How about this bit. Maybe we don't need to generate size events
1332         // all the time -- they'll be generated when the window is sized anyway.
1333 #if 0
1334         wxSizeEvent sizeEvent(wxSize(width, height), GetId());
1335         sizeEvent.SetEventObject(this);
1336
1337         GetEventHandler()->ProcessEvent(sizeEvent);
1338 #endif // 0
1339     }
1340 }
1341
1342 void wxWindow::DoSetClientSize(int width, int height)
1343 {
1344     if (m_drawingArea)
1345     {
1346         CanvasSetClientSize(width, height);
1347         return;
1348     }
1349
1350     Widget widget = (Widget) GetTopWidget();
1351
1352     if (width > -1)
1353         XtVaSetValues(widget, XmNwidth, width, NULL);
1354     if (height > -1)
1355         XtVaSetValues(widget, XmNheight, height, NULL);
1356
1357     wxSizeEvent sizeEvent(wxSize(width, height), GetId());
1358     sizeEvent.SetEventObject(this);
1359
1360     GetEventHandler()->ProcessEvent(sizeEvent);
1361 }
1362
1363 // For implementation purposes - sometimes decorations make the client area
1364 // smaller
1365 wxPoint wxWindow::GetClientAreaOrigin() const
1366 {
1367     return wxPoint(0, 0);
1368 }
1369
1370 void wxWindow::SetSizeHints(int minW, int minH, int maxW, int maxH, int incW, int incH)
1371 {
1372     m_minWidth = minW;
1373     m_minHeight = minH;
1374     m_maxWidth = maxW;
1375     m_maxHeight = maxH;
1376
1377     wxFrame *frame = wxDynamicCast(this, wxFrame);
1378     if ( !frame )
1379     {
1380         // TODO what about dialogs?
1381         return;
1382     }
1383
1384     Widget widget = (Widget) frame->GetShellWidget();
1385
1386     if (minW > -1)
1387         XtVaSetValues(widget, XmNminWidth, minW, NULL);
1388     if (minH > -1)
1389         XtVaSetValues(widget, XmNminHeight, minH, NULL);
1390     if (maxW > -1)
1391         XtVaSetValues(widget, XmNmaxWidth, maxW, NULL);
1392     if (maxH > -1)
1393         XtVaSetValues(widget, XmNmaxHeight, maxH, NULL);
1394     if (incW > -1)
1395         XtVaSetValues(widget, XmNwidthInc, incW, NULL);
1396     if (incH > -1)
1397         XtVaSetValues(widget, XmNheightInc, incH, NULL);
1398 }
1399
1400 void wxWindow::DoMoveWindow(int x, int y, int width, int height)
1401 {
1402     XtVaSetValues((Widget)GetTopWidget(),
1403                   XmNx, x,
1404                   XmNy, y,
1405                   XmNwidth, width,
1406                   XmNheight, height,
1407                   NULL);
1408 }
1409
1410 // ---------------------------------------------------------------------------
1411 // text metrics
1412 // ---------------------------------------------------------------------------
1413
1414 int wxWindow::GetCharHeight() const
1415 {
1416     wxCHECK_MSG( m_font.Ok(), 0, "valid window font needed" );
1417
1418     WXFontStructPtr pFontStruct = m_font.GetFontStruct(1.0, GetXDisplay());
1419
1420     int direction, ascent, descent;
1421     XCharStruct overall;
1422     XTextExtents ((XFontStruct*) pFontStruct, "x", 1, &direction, &ascent,
1423         &descent, &overall);
1424
1425     //  return (overall.ascent + overall.descent);
1426     return (ascent + descent);
1427 }
1428
1429 int wxWindow::GetCharWidth() const
1430 {
1431     wxCHECK_MSG( m_font.Ok(), 0, "valid window font needed" );
1432
1433     WXFontStructPtr pFontStruct = m_font.GetFontStruct(1.0, GetXDisplay());
1434
1435     int direction, ascent, descent;
1436     XCharStruct overall;
1437     XTextExtents ((XFontStruct*) pFontStruct, "x", 1, &direction, &ascent,
1438         &descent, &overall);
1439
1440     return overall.width;
1441 }
1442
1443 void wxWindow::GetTextExtent(const wxString& string,
1444                              int *x, int *y,
1445                              int *descent, int *externalLeading,
1446                              const wxFont *theFont) const
1447 {
1448     wxFont *fontToUse = (wxFont *)theFont;
1449     if (!fontToUse)
1450         fontToUse = (wxFont *) & m_font;
1451
1452     wxCHECK_RET( fontToUse->Ok(), "valid window font needed" );
1453
1454     WXFontStructPtr pFontStruct = theFont->GetFontStruct(1.0, GetXDisplay());
1455
1456     int direction, ascent, descent2;
1457     XCharStruct overall;
1458     int slen = string.Len();
1459
1460 #if 0
1461     if (use16)
1462         XTextExtents16((XFontStruct*) pFontStruct, (XChar2b *) (char*) (const char*) string, slen, &direction,
1463         &ascent, &descent2, &overall);
1464 #endif
1465
1466     XTextExtents((XFontStruct*) pFontStruct, string, slen,
1467                  &direction, &ascent, &descent2, &overall);
1468
1469     if ( x )
1470         *x = (overall.width);
1471     if ( y )
1472         *y = (ascent + descent2);
1473     if (descent)
1474         *descent = descent2;
1475     if (externalLeading)
1476         *externalLeading = 0;
1477
1478 }
1479
1480 // ----------------------------------------------------------------------------
1481 // painting
1482 // ----------------------------------------------------------------------------
1483
1484 void wxWindow::Refresh(bool eraseBack, const wxRect *rect)
1485 {
1486     m_needsRefresh = TRUE;
1487     Display *display = XtDisplay((Widget) GetMainWidget());
1488     Window thisWindow = XtWindow((Widget) GetMainWidget());
1489
1490     XExposeEvent dummyEvent;
1491     int width, height;
1492     GetSize(&width, &height);
1493
1494     dummyEvent.type = Expose;
1495     dummyEvent.display = display;
1496     dummyEvent.send_event = True;
1497     dummyEvent.window = thisWindow;
1498     if (rect)
1499     {
1500         dummyEvent.x = rect->x;
1501         dummyEvent.y = rect->y;
1502         dummyEvent.width = rect->width;
1503         dummyEvent.height = rect->height;
1504     }
1505     else
1506     {
1507         dummyEvent.x = 0;
1508         dummyEvent.y = 0;
1509         dummyEvent.width = width;
1510         dummyEvent.height = height;
1511     }
1512     dummyEvent.count = 0;
1513
1514     if (eraseBack)
1515     {
1516         wxClientDC dc(this);
1517         wxBrush backgroundBrush(GetBackgroundColour(), wxSOLID);
1518         dc.SetBackground(backgroundBrush);
1519         if (rect)
1520             dc.Clear(*rect);
1521         else
1522             dc.Clear();
1523     }
1524
1525     XSendEvent(display, thisWindow, False, ExposureMask, (XEvent *)&dummyEvent);
1526 }
1527
1528 void wxWindow::Clear()
1529 {
1530     wxClientDC dc(this);
1531     wxBrush brush(GetBackgroundColour(), wxSOLID);
1532     dc.SetBackground(brush);
1533     dc.Clear();
1534 }
1535
1536 void wxWindow::ClearUpdateRects()
1537 {
1538     wxRectList::Node* node = m_updateRects.GetFirst();
1539     while (node)
1540     {
1541         wxRect* rect = node->GetData();
1542         delete rect;
1543         node = node->GetNext();
1544     }
1545
1546     m_updateRects.Clear();
1547 }
1548
1549 void wxWindow::DoPaint()
1550 {
1551     //TODO : make a temporary gc so we can do the XCopyArea below
1552     if (m_backingPixmap && !m_needsRefresh)
1553     {
1554       wxPaintDC dc(this);
1555
1556       GC tempGC = (GC) dc.GetBackingGC();
1557
1558       Widget widget = (Widget) GetMainWidget();
1559
1560       int scrollPosX = 0;
1561       int scrollPosY = 0;
1562
1563       // We have to test whether it's a wxScrolledWindow (hack!) because
1564       // otherwise we don't know how many pixels have been scrolled. We might
1565       // solve this in the future by defining virtual wxWindow functions to get
1566       // the scroll position in pixels. Or, each kind of scrolled window has to
1567       // implement backing stores itself, using generic wxWindows code.
1568       wxScrolledWindow* scrolledWindow = wxDynamicCast(this, wxScrolledWindow);
1569       if ( scrolledWindow )
1570       {
1571           int x, y;
1572           scrolledWindow->CalcScrolledPosition(0, 0, &x, &y);
1573
1574           scrollPosX = - x;
1575           scrollPosY = - y;
1576       }
1577
1578       // TODO: This could be optimized further by only copying the areas in the
1579       //       current update region.
1580
1581       // Only blit the part visible in the client area. The backing pixmap
1582       // always starts at 0, 0 but we may be looking at only a portion of it.
1583       wxSize clientArea = GetClientSize();
1584       int toBlitX = m_pixmapWidth - scrollPosX;
1585       int toBlitY = m_pixmapHeight - scrollPosY;
1586
1587       // Copy whichever is samller, the amount of pixmap we have to copy,
1588       // or the size of the client area.
1589       toBlitX = wxMin(toBlitX, clientArea.x);
1590       toBlitY = wxMin(toBlitY, clientArea.y);
1591
1592       // Make sure we're not negative
1593       toBlitX = wxMax(0, toBlitX);
1594       toBlitY = wxMax(0, toBlitY);
1595
1596       XCopyArea
1597       (
1598        XtDisplay(widget),
1599        (Pixmap) m_backingPixmap,
1600        XtWindow (widget),
1601        tempGC,
1602        scrollPosX, scrollPosY, // Start at the scroll position
1603        toBlitX, toBlitY,       // How much of the pixmap to copy
1604        0, 0                    // Destination
1605       );
1606     }
1607     else
1608     {
1609         // Set an erase event first
1610         wxEraseEvent eraseEvent(GetId());
1611         eraseEvent.SetEventObject(this);
1612         GetEventHandler()->ProcessEvent(eraseEvent);
1613
1614         wxPaintEvent event(GetId());
1615         event.SetEventObject(this);
1616         GetEventHandler()->ProcessEvent(event);
1617
1618         m_needsRefresh = FALSE;
1619     }
1620 }
1621
1622 // ----------------------------------------------------------------------------
1623 // event handlers
1624 // ----------------------------------------------------------------------------
1625
1626 // Responds to colour changes: passes event on to children.
1627 void wxWindow::OnSysColourChanged(wxSysColourChangedEvent& event)
1628 {
1629     wxWindowList::Node *node = GetChildren().GetFirst();
1630     while ( node )
1631     {
1632         // Only propagate to non-top-level windows
1633         wxWindow *win = node->GetData();
1634         if ( win->GetParent() )
1635         {
1636             wxSysColourChangedEvent event2;
1637             event.m_eventObject = win;
1638             win->GetEventHandler()->ProcessEvent(event2);
1639         }
1640
1641         node = node->GetNext();
1642     }
1643 }
1644
1645 void wxWindow::OnIdle(wxIdleEvent& WXUNUSED(event))
1646 {
1647     // This calls the UI-update mechanism (querying windows for
1648     // menu/toolbar/control state information)
1649     UpdateWindowUI();
1650 }
1651
1652 // ----------------------------------------------------------------------------
1653 // accelerators
1654 // ----------------------------------------------------------------------------
1655
1656 bool wxWindow::ProcessAccelerator(wxKeyEvent& event)
1657 {
1658     if (!m_acceleratorTable.Ok())
1659         return FALSE;
1660
1661     int count = m_acceleratorTable.GetCount();
1662     wxAcceleratorEntry* entries = m_acceleratorTable.GetEntries();
1663     int i;
1664     for (i = 0; i < count; i++)
1665     {
1666         wxAcceleratorEntry* entry = & (entries[i]);
1667         if (entry->MatchesEvent(event))
1668         {
1669             // Bingo, we have a match. Now find a control that matches the
1670             // entry command id.
1671
1672             // Need to go up to the top of the window hierarchy, since it might
1673             // be e.g. a menu item
1674             wxWindow* parent = this;
1675             while ( parent && !parent->IsTopLevel() )
1676                 parent = parent->GetParent();
1677
1678             if (!parent)
1679                 return FALSE;
1680
1681             wxFrame* frame = wxDynamicCast(parent, wxFrame);
1682             if ( frame )
1683             {
1684                 // Try for a menu command
1685                 if (frame->GetMenuBar())
1686                 {
1687                     wxMenuItem* item = frame->GetMenuBar()->FindItem(entry->GetCommand());
1688                     if (item)
1689                     {
1690                         wxCommandEvent commandEvent(wxEVT_COMMAND_MENU_SELECTED, entry->GetCommand());
1691                         commandEvent.SetEventObject(frame);
1692
1693                         // If ProcessEvent returns TRUE (it was handled), then
1694                         // the calling code will skip the event handling.
1695                         return frame->GetEventHandler()->ProcessEvent(commandEvent);
1696                     }
1697                 }
1698             }
1699
1700             // Find a child matching the command id
1701             wxWindow* child = parent->FindWindow(entry->GetCommand());
1702
1703             // No such child
1704             if (!child)
1705                 return FALSE;
1706
1707             // Now we process those kinds of windows that we can.
1708             // For now, only buttons.
1709             if ( wxDynamicCast(child, wxButton) )
1710             {
1711                 wxCommandEvent commandEvent (wxEVT_COMMAND_BUTTON_CLICKED, child->GetId());
1712                 commandEvent.SetEventObject(child);
1713                 return child->GetEventHandler()->ProcessEvent(commandEvent);
1714             }
1715
1716             return FALSE;
1717         } // matches event
1718     }// for
1719
1720     // We didn't match the key event against an accelerator.
1721     return FALSE;
1722 }
1723
1724 // ============================================================================
1725 // Motif-specific stuff from here on
1726 // ============================================================================
1727
1728 // ----------------------------------------------------------------------------
1729 // function which maintain the global hash table mapping Widgets to wxWindows
1730 // ----------------------------------------------------------------------------
1731
1732 bool wxAddWindowToTable(Widget w, wxWindow *win)
1733 {
1734     wxWindow *oldItem = NULL;
1735     if ((oldItem = (wxWindow *)wxWidgetHashTable->Get ((long) w)))
1736     {
1737         wxLogDebug("Widget table clash: new widget is %ld, %s",
1738                    (long)w, win->GetClassInfo()->GetClassName());
1739         return FALSE;
1740     }
1741
1742     wxWidgetHashTable->Put((long) w, win);
1743
1744     wxLogTrace("widget", "Widget 0x%08x <-> window %p (%s)",
1745                w, win, win->GetClassInfo()->GetClassName());
1746
1747     return TRUE;
1748 }
1749
1750 wxWindow *wxGetWindowFromTable(Widget w)
1751 {
1752     return (wxWindow *)wxWidgetHashTable->Get((long) w);
1753 }
1754
1755 void wxDeleteWindowFromTable(Widget w)
1756 {
1757     wxWidgetHashTable->Delete((long)w);
1758 }
1759
1760 // ----------------------------------------------------------------------------
1761 // add/remove window from the table
1762 // ----------------------------------------------------------------------------
1763
1764 // Add to hash table, add event handler
1765 bool wxWindow::AttachWidget (wxWindow* WXUNUSED(parent), WXWidget mainWidget,
1766                              WXWidget formWidget, int x, int y, int width, int height)
1767 {
1768     wxAddWindowToTable((Widget) mainWidget, this);
1769     if (CanAddEventHandler())
1770     {
1771         XtAddEventHandler((Widget) mainWidget,
1772             ButtonPressMask | ButtonReleaseMask | PointerMotionMask, // | KeyPressMask,
1773             False,
1774             wxPanelItemEventHandler,
1775             (XtPointer) this);
1776     }
1777
1778     if (!formWidget)
1779     {
1780         XtTranslations ptr;
1781         XtOverrideTranslations ((Widget) mainWidget,
1782             ptr = XtParseTranslationTable ("<Configure>: resize()"));
1783         XtFree ((char *) ptr);
1784     }
1785
1786     // Some widgets have a parent form widget, e.g. wxRadioBox
1787     if (formWidget)
1788     {
1789         if (!wxAddWindowToTable((Widget) formWidget, this))
1790             return FALSE;
1791
1792         XtTranslations ptr;
1793         XtOverrideTranslations ((Widget) formWidget,
1794             ptr = XtParseTranslationTable ("<Configure>: resize()"));
1795         XtFree ((char *) ptr);
1796     }
1797
1798     if (x == -1)
1799         x = 0;
1800     if (y == -1)
1801         y = 0;
1802     SetSize (x, y, width, height);
1803
1804     return TRUE;
1805 }
1806
1807 // Remove event handler, remove from hash table
1808 bool wxWindow::DetachWidget(WXWidget widget)
1809 {
1810     if (CanAddEventHandler())
1811     {
1812         XtRemoveEventHandler((Widget) widget,
1813             ButtonPressMask | ButtonReleaseMask | PointerMotionMask, // | KeyPressMask,
1814             False,
1815             wxPanelItemEventHandler,
1816             (XtPointer)this);
1817     }
1818
1819     wxDeleteWindowFromTable((Widget) widget);
1820     return TRUE;
1821 }
1822
1823 // ----------------------------------------------------------------------------
1824 // Motif-specific accessors
1825 // ----------------------------------------------------------------------------
1826
1827 // Get the underlying X window
1828 WXWindow wxWindow::GetXWindow() const
1829 {
1830     Widget wMain = (Widget)GetMainWidget();
1831     if ( wMain )
1832         return (WXWindow) XtWindow(wMain);
1833     else
1834         return (WXWindow) 0;
1835 }
1836
1837 // Get the underlying X display
1838 WXDisplay *wxWindow::GetXDisplay() const
1839 {
1840     Widget wMain = (Widget)GetMainWidget();
1841     if ( wMain )
1842         return (WXDisplay*) XtDisplay(wMain);
1843     else
1844         return (WXDisplay*) NULL;
1845 }
1846
1847 WXWidget wxWindow::GetMainWidget() const
1848 {
1849     if (m_drawingArea)
1850         return m_drawingArea;
1851     else
1852         return m_mainWidget;
1853 }
1854
1855 WXWidget wxWindow::GetClientWidget() const
1856 {
1857     if (m_drawingArea != (WXWidget) 0)
1858         return m_drawingArea;
1859     else
1860         return GetMainWidget();
1861 }
1862
1863 WXWidget wxWindow::GetTopWidget() const
1864 {
1865     return GetMainWidget();
1866 }
1867
1868 WXWidget wxWindow::GetLabelWidget() const
1869 {
1870     return GetMainWidget();
1871 }
1872
1873 // ----------------------------------------------------------------------------
1874 // Motif callbacks
1875 // ----------------------------------------------------------------------------
1876
1877 // All widgets should have this as their resize proc.
1878 // OnSize sent to wxWindow via client data.
1879 void wxWidgetResizeProc(Widget w, XConfigureEvent *WXUNUSED(event), String WXUNUSED(args)[], int *WXUNUSED(num_args))
1880 {
1881     wxWindow *win = wxGetWindowFromTable(w);
1882     if (!win)
1883         return;
1884
1885     if (win->PreResize())
1886     {
1887         int width, height;
1888         win->GetSize(&width, &height);
1889         wxSizeEvent sizeEvent(wxSize(width, height), win->GetId());
1890         sizeEvent.SetEventObject(win);
1891         win->GetEventHandler()->ProcessEvent(sizeEvent);
1892     }
1893 }
1894
1895 static void wxCanvasRepaintProc(Widget drawingArea,
1896                                 XtPointer clientData,
1897                                 XmDrawingAreaCallbackStruct * cbs)
1898 {
1899     if (!wxGetWindowFromTable(drawingArea))
1900         return;
1901
1902     XEvent * event = cbs->event;
1903     wxWindow * win = (wxWindow *) clientData;
1904
1905     switch (event->type)
1906     {
1907     case Expose:
1908         {
1909             win->AddUpdateRect(event->xexpose.x, event->xexpose.y,
1910                                event->xexpose.width, event->xexpose.height);
1911
1912             if (event -> xexpose.count == 0)
1913             {
1914                 win->DoPaint();
1915                 win->ClearUpdateRects();
1916             }
1917             break;
1918         }
1919     }
1920 }
1921
1922 // Unable to deal with Enter/Leave without a separate EventHandler (Motif 1.1.4)
1923 static void wxCanvasEnterLeave(Widget drawingArea,
1924                                XtPointer WXUNUSED(clientData),
1925                                XCrossingEvent * event)
1926 {
1927     XmDrawingAreaCallbackStruct cbs;
1928     XEvent ev;
1929
1930     ((XCrossingEvent &) ev) = *event;
1931
1932     cbs.reason = XmCR_INPUT;
1933     cbs.event = &ev;
1934
1935     wxCanvasInputEvent(drawingArea, (XtPointer) NULL, &cbs);
1936 }
1937
1938 // Fix to make it work under Motif 1.0 (!)
1939 static void wxCanvasMotionEvent (Widget WXUNUSED(drawingArea), XButtonEvent * WXUNUSED(event))
1940 {
1941 #if XmVersion <= 1000
1942     XmDrawingAreaCallbackStruct cbs;
1943     XEvent ev;
1944
1945     ev = *((XEvent *) event);
1946     cbs.reason = XmCR_INPUT;
1947     cbs.event = &ev;
1948
1949     wxCanvasInputEvent (drawingArea, (XtPointer) NULL, &cbs);
1950 #endif // XmVersion <= 1000
1951 }
1952
1953 static void wxCanvasInputEvent(Widget drawingArea,
1954                                XtPointer WXUNUSED(data),
1955                                XmDrawingAreaCallbackStruct * cbs)
1956 {
1957     wxWindow *canvas = wxGetWindowFromTable(drawingArea);
1958     XEvent local_event;
1959
1960     if (canvas==NULL)
1961         return;
1962
1963     if (cbs->reason != XmCR_INPUT)
1964         return;
1965
1966     local_event = *(cbs->event);    // We must keep a copy!
1967
1968     switch (local_event.xany.type)
1969     {
1970     case EnterNotify:
1971     case LeaveNotify:
1972     case ButtonPress:
1973     case ButtonRelease:
1974     case MotionNotify:
1975         {
1976             // FIXME: most of this mouse event code is more or less
1977             // duplicated in wxTranslateMouseEvent
1978             //
1979             wxEventType eventType = wxEVT_NULL;
1980
1981             if (local_event.xany.type == EnterNotify)
1982             {
1983                 //if (local_event.xcrossing.mode!=NotifyNormal)
1984                 //  return ; // Ignore grab events
1985                 eventType = wxEVT_ENTER_WINDOW;
1986                 //            canvas->GetEventHandler()->OnSetFocus();
1987             }
1988             else if (local_event.xany.type == LeaveNotify)
1989             {
1990                 //if (local_event.xcrossingr.mode!=NotifyNormal)
1991                 //  return ; // Ignore grab events
1992                 eventType = wxEVT_LEAVE_WINDOW;
1993                 //            canvas->GetEventHandler()->OnKillFocus();
1994             }
1995             else if (local_event.xany.type == MotionNotify)
1996             {
1997                 eventType = wxEVT_MOTION;
1998             }
1999
2000             else if (local_event.xany.type == ButtonPress)
2001             {
2002                 if (local_event.xbutton.button == Button1)
2003                 {
2004                     eventType = wxEVT_LEFT_DOWN;
2005                     canvas->SetButton1(TRUE);
2006                 }
2007                 else if (local_event.xbutton.button == Button2)
2008                 {
2009                     eventType = wxEVT_MIDDLE_DOWN;
2010                     canvas->SetButton2(TRUE);
2011                 }
2012                 else if (local_event.xbutton.button == Button3)
2013                 {
2014                     eventType = wxEVT_RIGHT_DOWN;
2015                     canvas->SetButton3(TRUE);
2016                 }
2017             }
2018             else if (local_event.xany.type == ButtonRelease)
2019             {
2020                 if (local_event.xbutton.button == Button1)
2021                 {
2022                     eventType = wxEVT_LEFT_UP;
2023                     canvas->SetButton1(FALSE);
2024                 }
2025                 else if (local_event.xbutton.button == Button2)
2026                 {
2027                     eventType = wxEVT_MIDDLE_UP;
2028                     canvas->SetButton2(FALSE);
2029                 }
2030                 else if (local_event.xbutton.button == Button3)
2031                 {
2032                     eventType = wxEVT_RIGHT_UP;
2033                     canvas->SetButton3(FALSE);
2034                 }
2035             }
2036
2037             wxMouseEvent wxevent (eventType);
2038
2039             wxevent.m_leftDown = ((eventType == wxEVT_LEFT_DOWN)
2040                 || (event_left_is_down (&local_event)
2041                 && (eventType != wxEVT_LEFT_UP)));
2042             wxevent.m_middleDown = ((eventType == wxEVT_MIDDLE_DOWN)
2043                 || (event_middle_is_down (&local_event)
2044                 && (eventType != wxEVT_MIDDLE_UP)));
2045             wxevent.m_rightDown = ((eventType == wxEVT_RIGHT_DOWN)
2046                 || (event_right_is_down (&local_event)
2047                 && (eventType != wxEVT_RIGHT_UP)));
2048
2049             wxevent.m_shiftDown = local_event.xbutton.state & ShiftMask;
2050             wxevent.m_controlDown = local_event.xbutton.state & ControlMask;
2051             wxevent.m_altDown = local_event.xbutton.state & Mod3Mask;
2052             wxevent.m_metaDown = local_event.xbutton.state & Mod1Mask;
2053             wxevent.SetTimestamp(local_event.xbutton.time);
2054
2055            if ( eventType == wxEVT_MOTION )
2056            {
2057                 if (local_event.xmotion.is_hint == NotifyHint)
2058                 {
2059                     Window root, child;
2060                     Display *dpy = XtDisplay (drawingArea);
2061
2062                     XQueryPointer (dpy, XtWindow (drawingArea),
2063                         &root, &child,
2064                         &local_event.xmotion.x_root,
2065                         &local_event.xmotion.y_root,
2066                         &local_event.xmotion.x,
2067                         &local_event.xmotion.y,
2068                         &local_event.xmotion.state);
2069                 }
2070                 else
2071                 {
2072                 }
2073            }
2074
2075             // Now check if we need to translate this event into a double click
2076             if (TRUE) // canvas->doubleClickAllowed)
2077             {
2078                 if (wxevent.ButtonDown())
2079                 {
2080                     long dclickTime = XtGetMultiClickTime((Display*) wxGetDisplay());
2081
2082                     // get button and time-stamp
2083                     int button = 0;
2084                     if (wxevent.LeftDown())
2085                         button = 1;
2086                     else if (wxevent.MiddleDown())
2087                         button = 2;
2088                     else if (wxevent.RightDown())
2089                         button = 3;
2090                     long ts = wxevent.GetTimestamp();
2091
2092                     // check, if single or double click
2093                     int buttonLast = canvas->GetLastClickedButton();
2094                     long lastTS = canvas->GetLastClickTime();
2095                     if ( buttonLast && buttonLast == button && (ts - lastTS) < dclickTime )
2096                     {
2097                         // I have a dclick
2098                         canvas->SetLastClick(0, ts);
2099
2100                         wxEventType typeDouble;
2101                         if ( eventType == wxEVT_LEFT_DOWN )
2102                             typeDouble = wxEVT_LEFT_DCLICK;
2103                         else if ( eventType == wxEVT_MIDDLE_DOWN )
2104                             typeDouble = wxEVT_MIDDLE_DCLICK;
2105                         else if ( eventType == wxEVT_RIGHT_DOWN )
2106                             typeDouble = wxEVT_RIGHT_DCLICK;
2107                         else
2108                             typeDouble = wxEVT_NULL;
2109
2110                         if ( typeDouble != wxEVT_NULL )
2111                         {
2112                             wxevent.SetEventType(typeDouble);
2113                         }
2114                     }
2115                     else
2116                     {
2117                         // not fast enough or different button
2118                         canvas->SetLastClick(button, ts);
2119                     }
2120                 }
2121             }
2122
2123             wxevent.SetId(canvas->GetId());
2124             wxevent.SetEventObject(canvas);
2125             wxevent.m_x = local_event.xbutton.x;
2126             wxevent.m_y = local_event.xbutton.y;
2127             canvas->GetEventHandler()->ProcessEvent (wxevent);
2128 #if 0
2129             if (eventType == wxEVT_ENTER_WINDOW ||
2130                     eventType == wxEVT_LEAVE_WINDOW ||
2131                     eventType == wxEVT_MOTION
2132                )
2133                 return;
2134 #endif // 0
2135             break;
2136       }
2137     case KeyPress:
2138         {
2139             KeySym keySym;
2140             static char buf[100];
2141 #if 0
2142             XComposeStatus compose;
2143             (void) XLookupString ((XKeyEvent *) & local_event, buf, 20, &keySym, &compose);
2144 #endif // 0
2145
2146             (void) XLookupString ((XKeyEvent *) & local_event, buf, 20, &keySym, NULL);
2147             int id = wxCharCodeXToWX (keySym);
2148
2149             wxEventType eventType = wxEVT_CHAR;
2150
2151             wxKeyEvent event (eventType);
2152
2153             if (local_event.xkey.state & ShiftMask)
2154                 event.m_shiftDown = TRUE;
2155             if (local_event.xkey.state & ControlMask)
2156                 event.m_controlDown = TRUE;
2157             if (local_event.xkey.state & Mod3Mask)
2158                 event.m_altDown = TRUE;
2159             if (local_event.xkey.state & Mod1Mask)
2160                 event.m_metaDown = TRUE;
2161             event.SetEventObject(canvas);
2162             event.m_keyCode = id;
2163             event.SetTimestamp(local_event.xkey.time);
2164
2165             if (id > -1)
2166             {
2167                 // Implement wxFrame::OnCharHook by checking ancestor.
2168                 wxWindow *parent = canvas->GetParent();
2169                 while (parent && !parent->IsKindOf(CLASSINFO(wxFrame)))
2170                     parent = parent->GetParent();
2171
2172                 if (parent)
2173                 {
2174                     event.SetEventType(wxEVT_CHAR_HOOK);
2175                     if (parent->GetEventHandler()->ProcessEvent(event))
2176                         return;
2177                 }
2178
2179                 // For simplicity, OnKeyDown is the same as OnChar
2180                 // TODO: filter modifier key presses from OnChar
2181                 event.SetEventType(wxEVT_KEY_DOWN);
2182
2183                 // Only process OnChar if OnKeyDown didn't swallow it
2184                 if (!canvas->GetEventHandler()->ProcessEvent (event))
2185                 {
2186                   event.SetEventType(wxEVT_CHAR);
2187                   canvas->GetEventHandler()->ProcessEvent (event);
2188         }
2189             }
2190             break;
2191         }
2192     case KeyRelease:
2193         {
2194             static char buf[100];
2195             KeySym keySym;
2196             (void) XLookupString ((XKeyEvent *) & local_event, buf, 20, &keySym, NULL);
2197             int id = wxCharCodeXToWX (keySym);
2198
2199             wxKeyEvent event (wxEVT_KEY_UP);
2200
2201             if (local_event.xkey.state & ShiftMask)
2202                 event.m_shiftDown = TRUE;
2203             if (local_event.xkey.state & ControlMask)
2204                 event.m_controlDown = TRUE;
2205             if (local_event.xkey.state & Mod3Mask)
2206                 event.m_altDown = TRUE;
2207             if (local_event.xkey.state & Mod1Mask)
2208                 event.m_metaDown = TRUE;
2209             event.SetEventObject(canvas);
2210             event.m_keyCode = id;
2211             event.SetTimestamp(local_event.xkey.time);
2212
2213             if (id > -1)
2214             {
2215                 canvas->GetEventHandler()->ProcessEvent (event);
2216             }
2217             break;
2218         }
2219     case FocusIn:
2220         {
2221             if (local_event.xfocus.detail != NotifyPointer)
2222             {
2223                 wxFocusEvent event(wxEVT_SET_FOCUS, canvas->GetId());
2224                 event.SetEventObject(canvas);
2225                 canvas->GetEventHandler()->ProcessEvent(event);
2226             }
2227             break;
2228         }
2229     case FocusOut:
2230         {
2231             if (local_event.xfocus.detail != NotifyPointer)
2232             {
2233                 wxFocusEvent event(wxEVT_KILL_FOCUS, canvas->GetId());
2234                 event.SetEventObject(canvas);
2235                 canvas->GetEventHandler()->ProcessEvent(event);
2236             }
2237             break;
2238         }
2239     default:
2240         break;
2241     }
2242 }
2243
2244 static void wxPanelItemEventHandler(Widget    wid,
2245                                     XtPointer WXUNUSED(client_data),
2246                                     XEvent*   event,
2247                                     Boolean  *continueToDispatch)
2248 {
2249     // Widget can be a label or the actual widget.
2250
2251     wxWindow *window = wxGetWindowFromTable(wid);
2252     if (window)
2253     {
2254         wxMouseEvent wxevent(0);
2255         if (wxTranslateMouseEvent(wxevent, window, wid, event))
2256         {
2257             window->GetEventHandler()->ProcessEvent(wxevent);
2258         }
2259     }
2260
2261     // TODO: probably the key to allowing default behaviour to happen. Say we
2262     // set a m_doDefault flag to FALSE at the start of this function. Then in
2263     // e.g. wxWindow::OnMouseEvent we can call Default() which sets this flag to
2264     // TRUE, indicating that default processing can happen. Thus, behaviour can
2265     // appear to be overridden just by adding an event handler and not calling
2266     // wxWindow::OnWhatever. ALSO, maybe we can use this instead of the current
2267     // way of handling drawing area events, to simplify things.
2268     *continueToDispatch = True;
2269 }
2270
2271 static void wxScrollBarCallback(Widget scrollbar,
2272                                 XtPointer clientData,
2273                                 XmScrollBarCallbackStruct *cbs)
2274 {
2275     wxWindow *win = wxGetWindowFromTable(scrollbar);
2276     int orientation = (int) clientData;
2277
2278     wxEventType eventType = wxEVT_NULL;
2279     switch (cbs->reason)
2280     {
2281     case XmCR_INCREMENT:
2282         {
2283             eventType = wxEVT_SCROLLWIN_LINEDOWN;
2284             break;
2285         }
2286     case XmCR_DECREMENT:
2287         {
2288             eventType = wxEVT_SCROLLWIN_LINEUP;
2289             break;
2290         }
2291     case XmCR_DRAG:
2292         {
2293             eventType = wxEVT_SCROLLWIN_THUMBTRACK;
2294             break;
2295         }
2296     case XmCR_VALUE_CHANGED:
2297         {
2298             eventType = wxEVT_SCROLLWIN_THUMBRELEASE;
2299             break;
2300         }
2301     case XmCR_PAGE_INCREMENT:
2302         {
2303             eventType = wxEVT_SCROLLWIN_PAGEDOWN;
2304             break;
2305         }
2306     case XmCR_PAGE_DECREMENT:
2307         {
2308             eventType = wxEVT_SCROLLWIN_PAGEUP;
2309             break;
2310         }
2311     case XmCR_TO_TOP:
2312         {
2313             eventType = wxEVT_SCROLLWIN_TOP;
2314             break;
2315         }
2316     case XmCR_TO_BOTTOM:
2317         {
2318             eventType = wxEVT_SCROLLWIN_BOTTOM;
2319             break;
2320         }
2321     default:
2322         {
2323             // Should never get here
2324             wxFAIL_MSG("Unknown scroll event.");
2325             break;
2326         }
2327     }
2328
2329     wxScrollWinEvent event(eventType,
2330                            cbs->value,
2331                            ((orientation == XmHORIZONTAL) ?
2332                             wxHORIZONTAL : wxVERTICAL));
2333     event.SetEventObject( win );
2334     win->GetEventHandler()->ProcessEvent(event);
2335 }
2336
2337 // For repainting arbitrary windows
2338 void wxUniversalRepaintProc(Widget w, XtPointer WXUNUSED(c_data), XEvent *event, char *)
2339 {
2340     Window window;
2341     Display *display;
2342
2343     wxWindow* win = wxGetWindowFromTable(w);
2344     if (!win)
2345         return;
2346
2347     switch(event -> type)
2348     {
2349     case Expose:
2350         {
2351             window = (Window) win -> GetXWindow();
2352             display = (Display *) win -> GetXDisplay();
2353
2354             if (event -> xexpose.count == 0)
2355             {
2356                 win->DoPaint();
2357
2358                 win->ClearUpdateRects();
2359             }
2360             else
2361             {
2362                 win->AddUpdateRect(event->xexpose.x, event->xexpose.y,
2363                                    event->xexpose.width, event->xexpose.height);
2364             }
2365
2366             break;
2367         }
2368     }
2369 }
2370
2371 // ----------------------------------------------------------------------------
2372 // CanvaseXXXSize() functions
2373 // ----------------------------------------------------------------------------
2374
2375 // SetSize, but as per old wxCanvas (with drawing widget etc.)
2376 void wxWindow::CanvasSetSize (int x, int y, int w, int h, int sizeFlags)
2377 {
2378     // A bit of optimization to help sort out the flickers.
2379     int oldX, oldY, oldW, oldH;
2380     GetSize(& oldW, & oldH);
2381     GetPosition(& oldX, & oldY);
2382
2383     bool useOldPos = FALSE;
2384     bool useOldSize = FALSE;
2385
2386     if ((x == -1) && (x == -1) && ((sizeFlags & wxSIZE_ALLOW_MINUS_ONE) == 0))
2387         useOldPos = TRUE;
2388     else if (x == oldX && y == oldY)
2389         useOldPos = TRUE;
2390
2391     if ((w == -1) && (h == -1))
2392         useOldSize = TRUE;
2393     else if (w == oldW && h == oldH)
2394         useOldSize = TRUE;
2395
2396     if (!wxNoOptimize::CanOptimize())
2397     {
2398         useOldSize = FALSE; useOldPos = FALSE;
2399     }
2400
2401     if (useOldPos && useOldSize)
2402         return;
2403
2404     Widget drawingArea = (Widget) m_drawingArea;
2405     bool managed = XtIsManaged(m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow);
2406
2407     if (managed)
2408         XtUnmanageChild (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow);
2409     XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_ANY, NULL);
2410
2411     int xx = x; int yy = y;
2412     AdjustForParentClientOrigin(xx, yy, sizeFlags);
2413
2414     if (!useOldPos)
2415     {
2416         if (x > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2417         {
2418             XtVaSetValues (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow,
2419                 XmNx, xx, NULL);
2420         }
2421
2422         if (y > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2423         {
2424             XtVaSetValues (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow,
2425                 XmNy, yy, NULL);
2426         }
2427     }
2428
2429     if (!useOldSize)
2430     {
2431
2432         if (w > -1)
2433         {
2434             if (m_borderWidget)
2435             {
2436                 XtVaSetValues ((Widget) m_borderWidget, XmNwidth, w, NULL);
2437                 short thick, margin;
2438                 XtVaGetValues ((Widget) m_borderWidget,
2439                     XmNshadowThickness, &thick,
2440                     XmNmarginWidth, &margin,
2441                     NULL);
2442                 w -= 2 * (thick + margin);
2443             }
2444
2445             XtVaSetValues ((Widget) m_scrolledWindow, XmNwidth, w, NULL);
2446
2447             Dimension spacing;
2448             Widget sbar;
2449             XtVaGetValues ((Widget) m_scrolledWindow,
2450                 XmNspacing, &spacing,
2451                 XmNverticalScrollBar, &sbar,
2452                 NULL);
2453             Dimension wsbar;
2454             if (sbar)
2455                 XtVaGetValues (sbar, XmNwidth, &wsbar, NULL);
2456             else
2457                 wsbar = 0;
2458
2459             w -= (spacing + wsbar);
2460
2461 #if 0
2462             XtVaSetValues(drawingArea, XmNwidth, w, NULL);
2463 #endif // 0
2464         }
2465         if (h > -1)
2466         {
2467             if (m_borderWidget)
2468             {
2469                 XtVaSetValues ((Widget) m_borderWidget, XmNheight, h, NULL);
2470                 short thick, margin;
2471                 XtVaGetValues ((Widget) m_borderWidget,
2472                     XmNshadowThickness, &thick,
2473                     XmNmarginHeight, &margin,
2474                     NULL);
2475                 h -= 2 * (thick + margin);
2476             }
2477
2478             XtVaSetValues ((Widget) m_scrolledWindow, XmNheight, h, NULL);
2479
2480             Dimension spacing;
2481             Widget sbar;
2482             XtVaGetValues ((Widget) m_scrolledWindow,
2483                 XmNspacing, &spacing,
2484                 XmNhorizontalScrollBar, &sbar,
2485                 NULL);
2486             Dimension wsbar;
2487             if (sbar)
2488                 XtVaGetValues (sbar, XmNheight, &wsbar, NULL);
2489             else
2490                 wsbar = 0;
2491
2492             h -= (spacing + wsbar);
2493
2494 #if 0
2495             XtVaSetValues(drawingArea, XmNheight, h, NULL);
2496 #endif // 0
2497         }
2498     }
2499
2500     if (managed)
2501         XtManageChild (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow);
2502     XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_NONE, NULL);
2503
2504 #if 0
2505     int ww, hh;
2506     GetClientSize (&ww, &hh);
2507     wxSizeEvent sizeEvent(wxSize(ww, hh), GetId());
2508     sizeEvent.SetEventObject(this);
2509
2510     GetEventHandler()->ProcessEvent(sizeEvent);
2511 #endif // 0
2512 }
2513
2514 void wxWindow::CanvasSetClientSize (int w, int h)
2515 {
2516     Widget drawingArea = (Widget) m_drawingArea;
2517
2518     XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_ANY, NULL);
2519
2520     if (w > -1)
2521         XtVaSetValues(drawingArea, XmNwidth, w, NULL);
2522     if (h > -1)
2523         XtVaSetValues(drawingArea, XmNheight, h, NULL);
2524
2525 #if 0
2526     // TODO: is this necessary?
2527     allowRepainting = FALSE;
2528
2529     XSync (XtDisplay (drawingArea), FALSE);
2530     XEvent event;
2531     while (XtAppPending (wxTheApp->appContext))
2532     {
2533         XFlush (XtDisplay (drawingArea));
2534         XtAppNextEvent (wxTheApp->appContext, &event);
2535         XtDispatchEvent (&event);
2536     }
2537 #endif // 0
2538
2539     XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_NONE, NULL);
2540
2541 #if 0
2542     allowRepainting = TRUE;
2543     DoRefresh ();
2544
2545     wxSizeEvent sizeEvent(wxSize(w, h), GetId());
2546     sizeEvent.SetEventObject(this);
2547
2548     GetEventHandler()->ProcessEvent(sizeEvent);
2549 #endif // 0
2550 }
2551
2552 void wxWindow::CanvasGetClientSize (int *w, int *h) const
2553 {
2554     // Must return the same thing that was set via SetClientSize
2555     Dimension xx, yy;
2556     XtVaGetValues ((Widget) m_drawingArea, XmNwidth, &xx, XmNheight, &yy, NULL);
2557     *w = xx;
2558     *h = yy;
2559 }
2560
2561 void wxWindow::CanvasGetSize (int *w, int *h) const
2562 {
2563     Dimension xx, yy;
2564     if ((Widget) m_borderWidget)
2565         XtVaGetValues ((Widget) m_borderWidget, XmNwidth, &xx, XmNheight, &yy, NULL);
2566     else if ((Widget) m_scrolledWindow)
2567         XtVaGetValues ((Widget) m_scrolledWindow, XmNwidth, &xx, XmNheight, &yy, NULL);
2568     else
2569         XtVaGetValues ((Widget) m_drawingArea, XmNwidth, &xx, XmNheight, &yy, NULL);
2570
2571     *w = xx;
2572     *h = yy;
2573 }
2574
2575 void wxWindow::CanvasGetPosition (int *x, int *y) const
2576 {
2577     Position xx, yy;
2578     XtVaGetValues (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow, XmNx, &xx, XmNy, &yy, NULL);
2579
2580     // We may be faking the client origin.
2581     // So a window that's really at (0, 30) may appear
2582     // (to wxWin apps) to be at (0, 0).
2583     if (GetParent())
2584     {
2585         wxPoint pt(GetParent()->GetClientAreaOrigin());
2586         xx -= pt.x;
2587         yy -= pt.y;
2588     }
2589
2590     *x = xx;
2591     *y = yy;
2592 }
2593
2594 // ----------------------------------------------------------------------------
2595 // TranslateXXXEvent() functions
2596 // ----------------------------------------------------------------------------
2597
2598 bool wxTranslateMouseEvent(wxMouseEvent& wxevent, wxWindow *win, Widget widget, XEvent *xevent)
2599 {
2600     switch (xevent->xany.type)
2601     {
2602         case EnterNotify:  // never received here - yes ? MB
2603         case LeaveNotify:  // never received here - yes ? MB
2604         case ButtonPress:
2605         case ButtonRelease:
2606         case MotionNotify:
2607         {
2608             wxEventType eventType = wxEVT_NULL;
2609
2610             // FIXME: this is never true I think - MB
2611             //
2612             if (xevent->xany.type == LeaveNotify)
2613             {
2614                 win->SetButton1(FALSE);
2615                 win->SetButton2(FALSE);
2616                 win->SetButton3(FALSE);
2617                 return FALSE;
2618             }
2619             else if (xevent->xany.type == MotionNotify)
2620             {
2621                 eventType = wxEVT_MOTION;
2622             }
2623             else if (xevent->xany.type == ButtonPress)
2624             {
2625                 wxevent.SetTimestamp(xevent->xbutton.time);
2626                 int button = 0;
2627                 if (xevent->xbutton.button == Button1)
2628                 {
2629                     eventType = wxEVT_LEFT_DOWN;
2630                     win->SetButton1(TRUE);
2631                     button = 1;
2632                 }
2633                 else if (xevent->xbutton.button == Button2)
2634                 {
2635                     eventType = wxEVT_MIDDLE_DOWN;
2636                     win->SetButton2(TRUE);
2637                     button = 2;
2638                 }
2639                 else if (xevent->xbutton.button == Button3)
2640                 {
2641                     eventType = wxEVT_RIGHT_DOWN;
2642                     win->SetButton3(TRUE);
2643                     button = 3;
2644                 }
2645
2646                 // check for a double click
2647                 //
2648                 long dclickTime = XtGetMultiClickTime((Display*) wxGetDisplay());
2649                 long ts = wxevent.GetTimestamp();
2650
2651                 int buttonLast = win->GetLastClickedButton();
2652                 long lastTS = win->GetLastClickTime();
2653                 if ( buttonLast && buttonLast == button && (ts - lastTS) < dclickTime )
2654                 {
2655                     // I have a dclick
2656                     win->SetLastClick(0, ts);
2657                     if ( eventType == wxEVT_LEFT_DOWN )
2658                         eventType = wxEVT_LEFT_DCLICK;
2659                     else if ( eventType == wxEVT_MIDDLE_DOWN )
2660                         eventType = wxEVT_MIDDLE_DCLICK;
2661                     else if ( eventType == wxEVT_RIGHT_DOWN )
2662                         eventType = wxEVT_RIGHT_DCLICK;
2663                 }
2664                 else
2665                 {
2666                     // not fast enough or different button
2667                     win->SetLastClick(button, ts);
2668                 }
2669             }
2670             else if (xevent->xany.type == ButtonRelease)
2671             {
2672                 if (xevent->xbutton.button == Button1)
2673                 {
2674                     eventType = wxEVT_LEFT_UP;
2675                     win->SetButton1(FALSE);
2676                 }
2677                 else if (xevent->xbutton.button == Button2)
2678                 {
2679                     eventType = wxEVT_MIDDLE_UP;
2680                     win->SetButton2(FALSE);
2681                 }
2682                 else if (xevent->xbutton.button == Button3)
2683                 {
2684                     eventType = wxEVT_RIGHT_UP;
2685                     win->SetButton3(FALSE);
2686                 }
2687                 else return FALSE;
2688             }
2689             else
2690             {
2691                 return FALSE;
2692             }
2693
2694             wxevent.SetEventType(eventType);
2695
2696             Position x1, y1;
2697             XtVaGetValues(widget, XmNx, &x1, XmNy, &y1, NULL);
2698
2699             int x2, y2;
2700             win->GetPosition(&x2, &y2);
2701
2702             // The button x/y must be translated to wxWindows
2703             // window space - the widget might be a label or button,
2704             // within a form.
2705             int dx = 0;
2706             int dy = 0;
2707             if (widget != (Widget)win->GetMainWidget())
2708             {
2709                 dx = x1;
2710                 dy = y1;
2711             }
2712
2713             wxevent.m_x = xevent->xbutton.x + dx;
2714             wxevent.m_y = xevent->xbutton.y + dy;
2715
2716             wxevent.m_leftDown = ((eventType == wxEVT_LEFT_DOWN)
2717                 || (event_left_is_down (xevent)
2718                 && (eventType != wxEVT_LEFT_UP)));
2719             wxevent.m_middleDown = ((eventType == wxEVT_MIDDLE_DOWN)
2720                 || (event_middle_is_down (xevent)
2721                 && (eventType != wxEVT_MIDDLE_UP)));
2722             wxevent.m_rightDown = ((eventType == wxEVT_RIGHT_DOWN)
2723                 || (event_right_is_down (xevent)
2724                 && (eventType != wxEVT_RIGHT_UP)));
2725
2726             wxevent.m_shiftDown = xevent->xbutton.state & ShiftMask;
2727             wxevent.m_controlDown = xevent->xbutton.state & ControlMask;
2728             wxevent.m_altDown = xevent->xbutton.state & Mod3Mask;
2729             wxevent.m_metaDown = xevent->xbutton.state & Mod1Mask;
2730
2731             wxevent.SetId(win->GetId());
2732             wxevent.SetEventObject(win);
2733
2734             return TRUE;
2735         }
2736     }
2737     return FALSE;
2738 }
2739
2740 bool wxTranslateKeyEvent(wxKeyEvent& wxevent, wxWindow *win, Widget WXUNUSED(widget), XEvent *xevent)
2741 {
2742     switch (xevent->xany.type)
2743     {
2744     case KeyPress:
2745     case KeyRelease:
2746         {
2747             char buf[20];
2748
2749             KeySym keySym;
2750 #if 0
2751             XComposeStatus compose;
2752             (void) XLookupString ((XKeyEvent *) xevent, buf, 20, &keySym, &compose);
2753 #endif // 0
2754             (void) XLookupString ((XKeyEvent *) xevent, buf, 20, &keySym, NULL);
2755             int id = wxCharCodeXToWX (keySym);
2756
2757             if (xevent->xkey.state & ShiftMask)
2758                 wxevent.m_shiftDown = TRUE;
2759             if (xevent->xkey.state & ControlMask)
2760                 wxevent.m_controlDown = TRUE;
2761             if (xevent->xkey.state & Mod3Mask)
2762                 wxevent.m_altDown = TRUE;
2763             if (xevent->xkey.state & Mod1Mask)
2764                 wxevent.m_metaDown = TRUE;
2765             wxevent.SetEventObject(win);
2766             wxevent.m_keyCode = id;
2767             wxevent.SetTimestamp(xevent->xkey.time);
2768
2769             wxevent.m_x = xevent->xbutton.x;
2770             wxevent.m_y = xevent->xbutton.y;
2771
2772             if (id > -1)
2773                 return TRUE;
2774             else
2775                 return FALSE;
2776             break;
2777         }
2778     default:
2779         break;
2780     }
2781     return FALSE;
2782 }
2783
2784 // ----------------------------------------------------------------------------
2785 // Colour stuff
2786 // ----------------------------------------------------------------------------
2787
2788 #define YAllocColor XAllocColor
2789 XColor g_itemColors[5];
2790 int wxComputeColours (Display *display, wxColour * back, wxColour * fore)
2791 {
2792     int result;
2793     static XmColorProc colorProc;
2794
2795     result = wxNO_COLORS;
2796
2797     if (back)
2798     {
2799         g_itemColors[0].red = (((long) back->Red ()) << 8);
2800         g_itemColors[0].green = (((long) back->Green ()) << 8);
2801         g_itemColors[0].blue = (((long) back->Blue ()) << 8);
2802         g_itemColors[0].flags = DoRed | DoGreen | DoBlue;
2803         if (colorProc == (XmColorProc) NULL)
2804         {
2805             // Get a ptr to the actual function
2806             colorProc = XmSetColorCalculation ((XmColorProc) NULL);
2807             // And set it back to motif.
2808             XmSetColorCalculation (colorProc);
2809         }
2810         (*colorProc) (&g_itemColors[wxBACK_INDEX],
2811             &g_itemColors[wxFORE_INDEX],
2812             &g_itemColors[wxSELE_INDEX],
2813             &g_itemColors[wxTOPS_INDEX],
2814             &g_itemColors[wxBOTS_INDEX]);
2815         result = wxBACK_COLORS;
2816     }
2817     if (fore)
2818     {
2819         g_itemColors[wxFORE_INDEX].red = (((long) fore->Red ()) << 8);
2820         g_itemColors[wxFORE_INDEX].green = (((long) fore->Green ()) << 8);
2821         g_itemColors[wxFORE_INDEX].blue = (((long) fore->Blue ()) << 8);
2822         g_itemColors[wxFORE_INDEX].flags = DoRed | DoGreen | DoBlue;
2823         if (result == wxNO_COLORS)
2824             result = wxFORE_COLORS;
2825     }
2826
2827     Display *dpy = display;
2828     Colormap cmap = (Colormap) wxTheApp->GetMainColormap((WXDisplay*) dpy);
2829
2830     if (back)
2831     {
2832         /* 5 Colours to allocate */
2833         for (int i = 0; i < 5; i++)
2834             if (!YAllocColor (dpy, cmap, &g_itemColors[i]))
2835                 result = wxNO_COLORS;
2836     }
2837     else if (fore)
2838     {
2839         /* Only 1 colour to allocate */
2840         if (!YAllocColor (dpy, cmap, &g_itemColors[wxFORE_INDEX]))
2841             result = wxNO_COLORS;
2842     }
2843
2844     return (result);
2845
2846 }
2847
2848 // Changes the foreground and background colours to be derived from the current
2849 // background colour. To change the foreground colour, you must call
2850 // SetForegroundColour explicitly.
2851 void wxWindow::ChangeBackgroundColour()
2852 {
2853     WXWidget mainWidget = GetMainWidget();
2854     if ( mainWidget )
2855         DoChangeBackgroundColour(mainWidget, m_backgroundColour);
2856
2857     // This not necessary
2858 #if 0
2859
2860     if (m_scrolledWindow && (GetMainWidget() != m_scrolledWindow))
2861     {
2862         DoChangeBackgroundColour(m_scrolledWindow, m_backgroundColour);
2863         // Have to set the scrollbar colours back since
2864         // the scrolled window seemed to change them
2865         wxColour backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
2866
2867         if (m_hScrollBar)
2868             DoChangeBackgroundColour(m_hScrollBar, backgroundColour);
2869         if (m_vScrollBar)
2870             DoChangeBackgroundColour(m_vScrollBar, backgroundColour);
2871     }
2872 #endif
2873 }
2874
2875 void wxWindow::ChangeForegroundColour()
2876 {
2877     WXWidget mainWidget = GetMainWidget();
2878     if ( mainWidget )
2879         DoChangeForegroundColour(mainWidget, m_foregroundColour);
2880     if ( m_scrolledWindow && mainWidget != m_scrolledWindow )
2881         DoChangeForegroundColour(m_scrolledWindow, m_foregroundColour);
2882 }
2883
2884 // Change a widget's foreground and background colours.
2885 void wxWindow::DoChangeForegroundColour(WXWidget widget, wxColour& foregroundColour)
2886 {
2887     // When should we specify the foreground, if it's calculated
2888     // by wxComputeColours?
2889     // Solution: say we start with the default (computed) foreground colour.
2890     // If we call SetForegroundColour explicitly for a control or window,
2891     // then the foreground is changed.
2892     // Therefore SetBackgroundColour computes the foreground colour, and
2893     // SetForegroundColour changes the foreground colour. The ordering is
2894     // important.
2895
2896     Widget w = (Widget)widget;
2897     XtVaSetValues(
2898                   w,
2899                   XmNforeground, foregroundColour.AllocColour(XtDisplay(w)),
2900                   NULL
2901                  );
2902 }
2903
2904 void wxWindow::DoChangeBackgroundColour(WXWidget widget, wxColour& backgroundColour, bool changeArmColour)
2905 {
2906     wxComputeColours (XtDisplay((Widget) widget), & backgroundColour,
2907         (wxColour*) NULL);
2908
2909     XtVaSetValues ((Widget) widget,
2910         XmNbackground, g_itemColors[wxBACK_INDEX].pixel,
2911         XmNtopShadowColor, g_itemColors[wxTOPS_INDEX].pixel,
2912         XmNbottomShadowColor, g_itemColors[wxBOTS_INDEX].pixel,
2913         XmNforeground, g_itemColors[wxFORE_INDEX].pixel,
2914         NULL);
2915
2916     if (changeArmColour)
2917         XtVaSetValues ((Widget) widget,
2918         XmNarmColor, g_itemColors[wxSELE_INDEX].pixel,
2919         NULL);
2920 }
2921
2922 bool wxWindow::SetBackgroundColour(const wxColour& col)
2923 {
2924     if ( !wxWindowBase::SetBackgroundColour(col) )
2925         return FALSE;
2926
2927     ChangeBackgroundColour();
2928
2929     return TRUE;
2930 }
2931
2932 bool wxWindow::SetForegroundColour(const wxColour& col)
2933 {
2934     if ( !wxWindowBase::SetForegroundColour(col) )
2935         return FALSE;
2936
2937     ChangeForegroundColour();
2938
2939     return TRUE;
2940 }
2941
2942 void wxWindow::ChangeFont(bool keepOriginalSize)
2943 {
2944     // Note that this causes the widget to be resized back
2945     // to its original size! We therefore have to set the size
2946     // back again. TODO: a better way in Motif?
2947     Widget w = (Widget) GetLabelWidget(); // Usually the main widget
2948     if (w && m_font.Ok())
2949     {
2950         int width, height, width1, height1;
2951         GetSize(& width, & height);
2952
2953         // lesstif 0.87 hangs here
2954 #ifndef LESSTIF_VERSION
2955         XtVaSetValues (w,
2956             XmNfontList, (XmFontList) m_font.GetFontList(1.0, XtDisplay(w)),
2957             NULL);
2958 #endif
2959
2960         GetSize(& width1, & height1);
2961         if (keepOriginalSize && (width != width1 || height != height1))
2962         {
2963             SetSize(-1, -1, width, height);
2964         }
2965     }
2966 }
2967
2968 // ----------------------------------------------------------------------------
2969 // global functions
2970 // ----------------------------------------------------------------------------
2971
2972 wxWindow *wxGetActiveWindow()
2973 {
2974     // TODO
2975     wxFAIL_MSG("Not implemented");
2976     return NULL;
2977 }
2978
2979 /* static */
2980 wxWindow *wxWindowBase::GetCapture()
2981 {
2982     return (wxWindow *)g_captureWindow;
2983 }
2984
2985
2986 // Find the wxWindow at the current mouse position, returning the mouse
2987 // position.
2988 wxWindow* wxFindWindowAtPointer(wxPoint& pt)
2989 {
2990     return wxFindWindowAtPoint(wxGetMousePosition());
2991 }
2992
2993 // Get the current mouse position.
2994 wxPoint wxGetMousePosition()
2995 {
2996     Display *display = (Display*) wxGetDisplay();
2997     Window rootWindow = RootWindowOfScreen (DefaultScreenOfDisplay(display));
2998     Window rootReturn, childReturn;
2999     int rootX, rootY, winX, winY;
3000     unsigned int maskReturn;
3001
3002     XQueryPointer (display,
3003                    rootWindow,
3004                    &rootReturn,
3005                    &childReturn,
3006                    &rootX, &rootY, &winX, &winY, &maskReturn);
3007     return wxPoint(rootX, rootY);
3008 }
3009
3010
3011 // ----------------------------------------------------------------------------
3012 // wxNoOptimize: switch off size optimization
3013 // ----------------------------------------------------------------------------
3014
3015 int wxNoOptimize::ms_count = 0;
3016