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