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