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