src/motif/window.cpp

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