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