src/motif/window.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        windows.cpp
   3 // Purpose:     wxWindow
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "window.h"
  22 #endif
  23
  24 #ifdef __VMS
  25 #define XtDisplay XTDISPLAY
  26 #define XtWindow XTWINDOW
  27 #define XtScreen XTSCREEN
  28 #endif
  29
  30 #include "wx/setup.h"
  31 #include "wx/menu.h"
  32 #include "wx/dc.h"
  33 #include "wx/dcclient.h"
  34 #include "wx/utils.h"
  35 #include "wx/app.h"
  36 #include "wx/panel.h"
  37 #include "wx/layout.h"
  38 #include "wx/dialog.h"
  39 #include "wx/listbox.h"
  40 #include "wx/button.h"
  41 #include "wx/settings.h"
  42 #include "wx/msgdlg.h"
  43 #include "wx/frame.h"
  44 #include "wx/scrolwin.h"
  45 #include "wx/module.h"
  46 #include "wx/menuitem.h"
  47 #include "wx/log.h"
  48
  49 #if  wxUSE_DRAG_AND_DROP
  50     #include "wx/dnd.h"
  51 #endif
  52
  53 #ifdef __VMS__
  54 #pragma message disable nosimpint
  55 #endif
  56 #include <Xm/Xm.h>
  57
  58 #include <Xm/DrawingA.h>
  59 #include <Xm/ScrolledW.h>
  60 #include <Xm/ScrollBar.h>
  61 #include <Xm/Frame.h>
  62 #include <Xm/Label.h>
  63 #include <Xm/RowColumn.h>           // for XmMenuPosition
  64 #ifdef __VMS__
  65 #pragma message enable nosimpint
  66 #endif
  67
  68 #include "wx/motif/private.h"
  69
  70 #include <string.h>
  71
  72 // ----------------------------------------------------------------------------
  73 // constants
  74 // ----------------------------------------------------------------------------
  75
  76 static const int SCROLL_MARGIN = 4;
  77
  78 // ----------------------------------------------------------------------------
  79 // global variables for this module
  80 // ----------------------------------------------------------------------------
  81
  82 extern wxHashTable *wxWidgetHashTable;
  83 static wxWindow* g_captureWindow = NULL;
  84
  85
  86 // ----------------------------------------------------------------------------
  87 // private functions
  88 // ----------------------------------------------------------------------------
  89
  90 static void wxCanvasRepaintProc(Widget, XtPointer, XmDrawingAreaCallbackStruct * cbs);
  91 static void wxCanvasInputEvent(Widget drawingArea, XtPointer data, XmDrawingAreaCallbackStruct * cbs);
  92 static void wxCanvasMotionEvent(Widget, XButtonEvent * event);
  93 static void wxCanvasEnterLeave(Widget drawingArea, XtPointer clientData, XCrossingEvent * event);
  94 static void wxScrollBarCallback(Widget widget, XtPointer clientData,
  95                                 XmScrollBarCallbackStruct *cbs);
  96 static void wxPanelItemEventHandler(Widget    wid,
  97                                     XtPointer client_data,
  98                                     XEvent*   event,
  99                                     Boolean  *continueToDispatch);
 100
 101 // unused for now
 102 #if 0
 103
 104 // Helper function for 16-bit fonts
 105 static int str16len(const char *s)
 106 {
 107     int count = 0;
 108
 109     while (s[0] && s[1]) {
 110         count++;
 111         s += 2;
 112     }
 113
 114     return count;
 115 }
 116
 117 #endif // 0
 118
 119 // ----------------------------------------------------------------------------
 120 // macros
 121 // ----------------------------------------------------------------------------
 122
 123 #define event_left_is_down(x) ((x)->xbutton.state & Button1Mask)
 124 #define event_middle_is_down(x) ((x)->xbutton.state & Button2Mask)
 125 #define event_right_is_down(x) ((x)->xbutton.state & Button3Mask)
 126
 127 // ----------------------------------------------------------------------------
 128 // event tables
 129 // ----------------------------------------------------------------------------
 130
 131     IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxWindowBase)
 132
 133     BEGIN_EVENT_TABLE(wxWindow, wxWindowBase)
 134         EVT_SYS_COLOUR_CHANGED(wxWindow::OnSysColourChanged)
 135         EVT_IDLE(wxWindow::OnIdle)
 136     END_EVENT_TABLE()
 137
 138 // ============================================================================
 139 // implementation
 140 // ============================================================================
 141
 142 // ----------------------------------------------------------------------------
 143 // helper functions
 144 // ----------------------------------------------------------------------------
 145
 146 void wxWindow::UnmanageAndDestroy(WXWidget widget)
 147 {
 148     Widget w = (Widget)widget;
 149     if ( w )
 150     {
 151         XtUnmanageChild(w);
 152         XtDestroyWidget(w);
 153     }
 154 }
 155
 156 bool wxWindow::MapOrUnmap(WXWidget widget, bool map)
 157 {
 158     Widget w = (Widget)widget;
 159     if ( !w )
 160         return FALSE;
 161
 162     if ( map )
 163         XtMapWidget(w);
 164     else
 165         XtUnmapWidget(w);
 166
 167     return TRUE;
 168 }
 169
 170 // ----------------------------------------------------------------------------
 171 // constructors
 172 // ----------------------------------------------------------------------------
 173
 174 void wxWindow::Init()
 175 {
 176     // generic initializations first
 177     InitBase();
 178
 179     // Motif-specific
 180     m_needsRefresh = TRUE;
 181     m_mainWidget = (WXWidget) 0;
 182
 183     m_button1Pressed =
 184     m_button2Pressed =
 185     m_button3Pressed = FALSE;
 186
 187     m_winCaptured = FALSE;
 188
 189     m_isShown = TRUE;
 190     m_isBeingDeleted = FALSE;
 191
 192     m_hScrollBar =
 193     m_vScrollBar =
 194     m_borderWidget =
 195     m_scrolledWindow =
 196     m_drawingArea = (WXWidget) 0;
 197
 198     m_hScroll =
 199     m_vScroll = FALSE;
 200
 201     m_scrollPosX =
 202     m_scrollPosY = 0;
 203
 204     m_backingPixmap = (WXPixmap) 0;
 205     m_pixmapWidth =
 206     m_pixmapHeight = 0;
 207
 208     m_pixmapOffsetX =
 209     m_pixmapOffsetY = 0;
 210
 211     m_lastTS = 0;
 212     m_lastButton = 0;
 213     m_canAddEventHandler = FALSE;
 214 }
 215
 216 // real construction (Init() must have been called before!)
 217 bool wxWindow::Create(wxWindow *parent, wxWindowID id,
 218                       const wxPoint& pos,
 219                       const wxSize& size,
 220                       long style,
 221                       const wxString& name)
 222 {
 223     wxCHECK_MSG( parent, FALSE, "can't create wxWindow without parent" );
 224
 225     CreateBase(parent, id, pos, size, style, wxDefaultValidator, name);
 226
 227     parent->AddChild(this);
 228
 229     m_backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 230     m_foregroundColour = *wxBLACK;
 231
 232     //// TODO: we should probably optimize by only creating a
 233     //// a drawing area if we have one or more scrollbars (wxVSCROLL/wxHSCROLL).
 234     //// But for now, let's simplify things by always creating the
 235     //// drawing area, since otherwise the translations are different.
 236
 237     // New translations for getting mouse motion feedback
 238     static const String translations =
 239 "<Btn1Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 240 <Btn2Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 241 <Btn3Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 242 <BtnMotion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 243 <Btn1Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 244 <Btn2Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 245 <Btn3Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 246 <Btn1Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 247 <Btn2Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 248 <Btn3Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 249 <Motion>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 250 <EnterWindow>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 251 <LeaveWindow>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 252 <Key>: DrawingAreaInput()";
 253
 254     XtActionsRec actions[1];
 255     actions[0].string = "wxCanvasMotionEvent";
 256     actions[0].proc = (XtActionProc) wxCanvasMotionEvent;
 257     XtAppAddActions ((XtAppContext) wxTheApp->GetAppContext(), actions, 1);
 258
 259     Widget parentWidget = (Widget) parent->GetClientWidget();
 260
 261     if (style & wxSIMPLE_BORDER)
 262     {
 263         m_borderWidget = (WXWidget)XtVaCreateManagedWidget
 264                                    (
 265                                     "canvasBorder",
 266                                     xmFrameWidgetClass, parentWidget,
 267                                     XmNshadowType, XmSHADOW_IN,
 268                                     XmNshadowThickness, 1,
 269                                     NULL
 270                                    );
 271     } else if (style & wxSUNKEN_BORDER)
 272     {
 273         m_borderWidget = (WXWidget)XtVaCreateManagedWidget
 274                                    (
 275                                     "canvasBorder",
 276                                     xmFrameWidgetClass, parentWidget,
 277                                     XmNshadowType, XmSHADOW_IN,
 278                                     NULL
 279                                    );
 280     } else if (style & wxRAISED_BORDER)
 281     {
 282         m_borderWidget = (WXWidget)XtVaCreateManagedWidget
 283                                    (
 284                                     "canvasBorder",
 285                                     xmFrameWidgetClass, parentWidget,
 286                                     XmNshadowType, XmSHADOW_OUT,
 287                                     NULL
 288                                    );
 289     }
 290
 291     m_scrolledWindow = (WXWidget)XtVaCreateManagedWidget
 292                                  (
 293                                   "scrolledWindow",
 294                                   xmScrolledWindowWidgetClass,
 295                                   m_borderWidget ? (Widget) m_borderWidget
 296                                                  : parentWidget,
 297                                   XmNresizePolicy, XmRESIZE_NONE,
 298                                   XmNspacing, 0,
 299                                   XmNscrollingPolicy, XmAPPLICATION_DEFINED,
 300                                   //XmNscrollBarDisplayPolicy, XmAS_NEEDED,
 301                                   NULL
 302                                  );
 303
 304     XtTranslations ptr = XtParseTranslationTable(translations);
 305     m_drawingArea = (WXWidget)XtVaCreateWidget
 306                               (
 307                                name,
 308                                xmDrawingAreaWidgetClass, (Widget) m_scrolledWindow,
 309                                XmNunitType, XmPIXELS,
 310                                // XmNresizePolicy, XmRESIZE_ANY,
 311                                XmNresizePolicy, XmRESIZE_NONE,
 312                                XmNmarginHeight, 0,
 313                                XmNmarginWidth, 0,
 314                                XmNtranslations, ptr,
 315                                NULL
 316                               );
 317     XtFree((char *) ptr);
 318
 319 #if 0
 320     if (GetWindowStyleFlag() & wxOVERRIDE_KEY_TRANSLATIONS)
 321     {
 322         ptr = XtParseTranslationTable ("<Key>: DrawingAreaInput()");
 323         XtOverrideTranslations ((Widget) m_drawingArea, ptr);
 324         XtFree ((char *) ptr);
 325     }
 326 #endif // 0
 327
 328     wxAddWindowToTable((Widget) m_drawingArea, this);
 329     wxAddWindowToTable((Widget) m_scrolledWindow, this);
 330
 331     // This order is very important in Motif 1.2.1
 332     XtRealizeWidget ((Widget) m_scrolledWindow);
 333     XtRealizeWidget ((Widget) m_drawingArea);
 334     XtManageChild ((Widget) m_drawingArea);
 335
 336     ptr = XtParseTranslationTable("<Configure>: resize()");
 337     XtOverrideTranslations((Widget) m_drawingArea, ptr);
 338     XtFree ((char *) ptr);
 339
 340     XtAddCallback ((Widget) m_drawingArea, XmNexposeCallback, (XtCallbackProc) wxCanvasRepaintProc, (XtPointer) this);
 341     XtAddCallback ((Widget) m_drawingArea, XmNinputCallback, (XtCallbackProc) wxCanvasInputEvent, (XtPointer) this);
 342
 343     // TODO?
 344 #if 0
 345     display = XtDisplay (scrolledWindow);
 346     xwindow = XtWindow (drawingArea);
 347 #endif // 0
 348
 349     XtAddEventHandler(
 350                       (Widget)m_drawingArea,
 351                        PointerMotionHintMask | EnterWindowMask |
 352                        LeaveWindowMask | FocusChangeMask,
 353                        False,
 354                        (XtEventHandler) wxCanvasEnterLeave,
 355                        (XtPointer) this
 356                      );
 357
 358     // Scrolled widget needs to have its colour changed or we get a little blue
 359     // square where the scrollbars abutt
 360     wxColour backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 361     DoChangeBackgroundColour(m_scrolledWindow, backgroundColour, TRUE);
 362     DoChangeBackgroundColour(m_drawingArea, backgroundColour, TRUE);
 363
 364     XmScrolledWindowSetAreas(
 365                              (Widget)m_scrolledWindow,
 366                              (Widget) 0, (Widget) 0,
 367                              (Widget) m_drawingArea);
 368
 369 #if 0
 370     if (m_hScrollBar)
 371         XtRealizeWidget ((Widget) m_hScrollBar);
 372     if (m_vScrollBar)
 373         XtRealizeWidget ((Widget) m_vScrollBar);
 374 #endif // 0
 375
 376     // Without this, the cursor may not be restored properly (e.g. in splitter
 377     // sample).
 378     SetCursor(*wxSTANDARD_CURSOR);
 379     SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
 380     SetSize(pos.x, pos.y, size.x, size.y);
 381
 382     return TRUE;
 383 }
 384
 385 // Destructor
 386 wxWindow::~wxWindow()
 387 {
 388     if (g_captureWindow == this)
 389         g_captureWindow = NULL;
 390
 391     m_isBeingDeleted = TRUE;
 392
 393     // Motif-specific actions first
 394     WXWidget wMain = GetMainWidget();
 395     if ( wMain )
 396     {
 397         // Removes event handlers
 398         DetachWidget(wMain);
 399     }
 400
 401     ClearUpdateRects();
 402
 403     if ( m_parent )
 404         m_parent->RemoveChild( this );
 405
 406     // If m_drawingArea, we're a fully-fledged window with drawing area,
 407     // scrollbars etc. (what wxCanvas used to be)
 408     if ( m_drawingArea )
 409     {
 410         // Destroy children before destroying self
 411         DestroyChildren();
 412
 413         if (m_backingPixmap)
 414             XFreePixmap (XtDisplay ((Widget) GetMainWidget()), (Pixmap) m_backingPixmap);
 415
 416         Widget w = (Widget) m_drawingArea;
 417         wxDeleteWindowFromTable(w);
 418
 419         if (w)
 420         {
 421             XtDestroyWidget(w);
 422             m_drawingArea = (WXWidget) 0;
 423         }
 424
 425         // Only if we're _really_ a canvas (not a dialog box/panel)
 426         if (m_scrolledWindow)
 427         {
 428             wxDeleteWindowFromTable((Widget) m_scrolledWindow);
 429         }
 430
 431         if (m_hScrollBar)
 432         {
 433             wxDeleteWindowFromTable((Widget) m_hScrollBar);
 434             XtUnmanageChild((Widget) m_hScrollBar);
 435         }
 436         if (m_vScrollBar)
 437         {
 438             wxDeleteWindowFromTable((Widget) m_vScrollBar);
 439             XtUnmanageChild((Widget) m_vScrollBar);
 440         }
 441
 442         if (m_hScrollBar)
 443             XtDestroyWidget((Widget) m_hScrollBar);
 444         if (m_vScrollBar)
 445             XtDestroyWidget((Widget) m_vScrollBar);
 446
 447         UnmanageAndDestroy(m_scrolledWindow);
 448
 449         if (m_borderWidget)
 450         {
 451             XtDestroyWidget ((Widget) m_borderWidget);
 452             m_borderWidget = (WXWidget) 0;
 453         }
 454     }
 455     else // Why wasn't this here before? JACS 8/3/2000
 456         DestroyChildren();
 457
 458
 459     // Destroy the window
 460     if (GetMainWidget())
 461     {
 462         // If this line (XtDestroyWidget) causes a crash, you may comment it out.
 463         // Child widgets will get destroyed automatically when a frame
 464         // or dialog is destroyed, but before that you may get some memory
 465         // leaks and potential layout problems if you delete and then add
 466         // child windows.
 467
 468         // GRG, Feb/2000: commented this out when adding support for
 469         //   wxSCROLL[WIN]_THUMBRELEASE events. Also it was reported
 470         //   that this call crashed wxMotif under OS/2, so it seems
 471         //   that leaving it out is the right thing to do.
 472         // SN, Feb/2000: newgrid/griddemo shows why it is needed :-(
 473         XtDestroyWidget((Widget) GetMainWidget());
 474         SetMainWidget((WXWidget) NULL);
 475     }
 476 }
 477
 478 // ----------------------------------------------------------------------------
 479 // scrollbar management
 480 // ----------------------------------------------------------------------------
 481
 482 // Helper function
 483 void wxWindow::CreateScrollbar(wxOrientation orientation)
 484 {
 485     wxCHECK_RET( m_drawingArea, "this window can't have scrollbars" );
 486
 487     XtVaSetValues((Widget) m_scrolledWindow, XmNresizePolicy, XmRESIZE_NONE, NULL);
 488
 489     // Add scrollbars if required
 490     if (orientation == wxHORIZONTAL)
 491     {
 492         Widget hScrollBar = XtVaCreateManagedWidget ("hsb",
 493             xmScrollBarWidgetClass, (Widget) m_scrolledWindow,
 494             XmNorientation, XmHORIZONTAL,
 495             NULL);
 496         XtAddCallback (hScrollBar, XmNvalueChangedCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 497         XtAddCallback (hScrollBar, XmNdragCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 498         XtAddCallback (hScrollBar, XmNincrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 499         XtAddCallback (hScrollBar, XmNdecrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 500         XtAddCallback (hScrollBar, XmNpageIncrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 501         XtAddCallback (hScrollBar, XmNpageDecrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 502         XtAddCallback (hScrollBar, XmNtoTopCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 503         XtAddCallback (hScrollBar, XmNtoBottomCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmHORIZONTAL);
 504
 505         XtVaSetValues (hScrollBar,
 506             XmNincrement, 1,
 507             XmNvalue, 0,
 508             NULL);
 509
 510         m_hScrollBar = (WXWidget) hScrollBar;
 511
 512         wxColour backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 513         DoChangeBackgroundColour(m_hScrollBar, backgroundColour, TRUE);
 514
 515         XtRealizeWidget(hScrollBar);
 516
 517         XtVaSetValues((Widget) m_scrolledWindow,
 518             XmNhorizontalScrollBar, (Widget) m_hScrollBar,
 519             NULL);
 520
 521         m_hScroll = TRUE;
 522
 523         wxAddWindowToTable( hScrollBar, this );
 524     }
 525
 526     if (orientation == wxVERTICAL)
 527     {
 528         Widget vScrollBar = XtVaCreateManagedWidget ("vsb",
 529             xmScrollBarWidgetClass, (Widget) m_scrolledWindow,
 530             XmNorientation, XmVERTICAL,
 531             NULL);
 532         XtAddCallback (vScrollBar, XmNvalueChangedCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 533         XtAddCallback (vScrollBar, XmNdragCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 534         XtAddCallback (vScrollBar, XmNincrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 535         XtAddCallback (vScrollBar, XmNdecrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 536         XtAddCallback (vScrollBar, XmNpageIncrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 537         XtAddCallback (vScrollBar, XmNpageDecrementCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 538         XtAddCallback (vScrollBar, XmNtoTopCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 539         XtAddCallback (vScrollBar, XmNtoBottomCallback, (XtCallbackProc) wxScrollBarCallback, (XtPointer) XmVERTICAL);
 540
 541         XtVaSetValues (vScrollBar,
 542             XmNincrement, 1,
 543             XmNvalue, 0,
 544             NULL);
 545
 546         m_vScrollBar = (WXWidget) vScrollBar;
 547         wxColour backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 548         DoChangeBackgroundColour(m_vScrollBar, backgroundColour, TRUE);
 549
 550         XtRealizeWidget(vScrollBar);
 551
 552         XtVaSetValues((Widget) m_scrolledWindow,
 553             XmNverticalScrollBar, (Widget) m_vScrollBar,
 554             NULL);
 555
 556         m_vScroll = TRUE;
 557
 558         wxAddWindowToTable( vScrollBar, this );
 559     }
 560
 561     XtVaSetValues((Widget) m_scrolledWindow, XmNresizePolicy, XmRESIZE_ANY, NULL);
 562 }
 563
 564 void wxWindow::DestroyScrollbar(wxOrientation orientation)
 565 {
 566     wxCHECK_RET( m_drawingArea, "this window can't have scrollbars" );
 567
 568     XtVaSetValues((Widget) m_scrolledWindow, XmNresizePolicy, XmRESIZE_NONE, NULL);
 569     // Add scrollbars if required
 570     if (orientation == wxHORIZONTAL)
 571     {
 572         if (m_hScrollBar)
 573         {
 574             wxDeleteWindowFromTable((Widget)m_hScrollBar);
 575             XtDestroyWidget((Widget) m_hScrollBar);
 576         }
 577         m_hScrollBar = (WXWidget) 0;
 578         m_hScroll = FALSE;
 579
 580         XtVaSetValues((Widget) m_scrolledWindow,
 581             XmNhorizontalScrollBar, (Widget) 0,
 582             NULL);
 583
 584     }
 585
 586     if (orientation == wxVERTICAL)
 587     {
 588         if (m_vScrollBar)
 589         {
 590             wxDeleteWindowFromTable((Widget)m_vScrollBar);
 591             XtDestroyWidget((Widget) m_vScrollBar);
 592         }
 593         m_vScrollBar = (WXWidget) 0;
 594         m_vScroll = FALSE;
 595
 596         XtVaSetValues((Widget) m_scrolledWindow,
 597             XmNverticalScrollBar, (Widget) 0,
 598             NULL);
 599
 600     }
 601     XtVaSetValues((Widget) m_scrolledWindow, XmNresizePolicy, XmRESIZE_ANY, NULL);
 602 }
 603
 604 // ---------------------------------------------------------------------------
 605 // basic operations
 606 // ---------------------------------------------------------------------------
 607
 608 void wxWindow::SetFocus()
 609 {
 610     Widget wMain = (Widget) GetMainWidget();
 611     XmProcessTraversal(wMain, XmTRAVERSE_CURRENT);
 612     XmProcessTraversal((Widget) GetMainWidget(), XmTRAVERSE_CURRENT);
 613 }
 614
 615 // Get the window with the focus
 616 wxWindow *wxWindowBase::FindFocus()
 617 {
 618     // TODO Problems:
 619     // (1) Can there be multiple focussed widgets in an application?
 620     // In which case we need to find the top-level window that's
 621     // currently active.
 622     // (2) The widget with the focus may not be in the widget table
 623     // depending on which widgets I put in the table
 624     wxWindow *winFocus = (wxWindow *)NULL;
 625     for ( wxWindowList::Node *node = wxTopLevelWindows.GetFirst();
 626           node;
 627           node = node->GetNext() )
 628     {
 629         wxWindow *win = node->GetData();
 630
 631         Widget w = XmGetFocusWidget ((Widget) win->GetTopWidget());
 632
 633         if (w != (Widget) NULL)
 634         {
 635             winFocus = wxGetWindowFromTable(w);
 636             if ( winFocus )
 637                 break;
 638         }
 639     }
 640
 641     return winFocus;
 642 }
 643
 644 bool wxWindow::Enable(bool enable)
 645 {
 646     if ( !wxWindowBase::Enable(enable) )
 647         return FALSE;
 648
 649     Widget wMain = (Widget)GetMainWidget();
 650     if ( wMain )
 651     {
 652         XtSetSensitive(wMain, enable);
 653         XmUpdateDisplay(wMain);
 654     }
 655
 656     return TRUE;
 657 }
 658
 659 bool wxWindow::Show(bool show)
 660 {
 661     if ( !wxWindowBase::Show(show) )
 662         return FALSE;
 663
 664     if (m_borderWidget || m_scrolledWindow)
 665     {
 666         MapOrUnmap(m_drawingArea, show);
 667         MapOrUnmap(m_borderWidget ? m_borderWidget : m_scrolledWindow, show);
 668     }
 669     else
 670     {
 671         if ( !MapOrUnmap(GetTopWidget(), show) )
 672             MapOrUnmap(GetMainWidget(), show);
 673     }
 674
 675 #if 0
 676     Window xwin = (Window) GetXWindow();
 677     Display *xdisp = (Display*) GetXDisplay();
 678     if (show)
 679         XMapWindow(xdisp, xwin);
 680     else
 681         XUnmapWindow(xdisp, xwin);
 682 #endif
 683
 684     return TRUE;
 685 }
 686
 687 // Raise the window to the top of the Z order
 688 void wxWindow::Raise()
 689 {
 690     Widget wTop = (Widget) GetTopWidget();
 691     Window window = XtWindow(wTop);
 692     XRaiseWindow(XtDisplay(wTop), window);
 693 }
 694
 695 // Lower the window to the bottom of the Z order
 696 void wxWindow::Lower()
 697 {
 698     Widget wTop = (Widget) GetTopWidget();
 699     Window window = XtWindow(wTop);
 700     XLowerWindow(XtDisplay(wTop), window);
 701 }
 702
 703 void wxWindow::SetTitle(const wxString& title)
 704 {
 705     XtVaSetValues((Widget)GetMainWidget(), XmNtitle, title.c_str(), NULL);
 706 }
 707
 708 wxString wxWindow::GetTitle() const
 709 {
 710     char *title;
 711     XtVaGetValues((Widget)GetMainWidget(), XmNtitle, &title, NULL);
 712
 713     return wxString(title);
 714 }
 715
 716 void wxWindow::DoCaptureMouse()
 717 {
 718     g_captureWindow = this;
 719     if ( m_winCaptured )
 720         return;
 721
 722     Widget wMain = (Widget)GetMainWidget();
 723     if ( wMain )
 724         XtAddGrab(wMain, TRUE, FALSE);
 725
 726     m_winCaptured = TRUE;
 727 }
 728
 729 void wxWindow::DoReleaseMouse()
 730 {
 731     g_captureWindow = NULL;
 732     if ( !m_winCaptured )
 733         return;
 734
 735     Widget wMain = (Widget)GetMainWidget();
 736     if ( wMain )
 737         XtRemoveGrab(wMain);
 738
 739     m_winCaptured = FALSE;
 740 }
 741
 742 bool wxWindow::SetFont(const wxFont& font)
 743 {
 744     if ( !wxWindowBase::SetFont(font) )
 745     {
 746         // nothing to do
 747         return FALSE;
 748     }
 749
 750     ChangeFont();
 751
 752     return TRUE;
 753 }
 754
 755 bool wxWindow::SetCursor(const wxCursor& cursor)
 756 {
 757     if ( !wxWindowBase::SetCursor(cursor) )
 758     {
 759         // no change
 760         return FALSE;
 761     }
 762
 763     //    wxASSERT_MSG( m_cursor.Ok(),
 764     //                  wxT("cursor must be valid after call to the base version"));
 765     wxCursor* cursor2 = NULL;
 766     if (m_cursor.Ok())
 767         cursor2 = & m_cursor;
 768     else
 769         cursor2 = wxSTANDARD_CURSOR;
 770
 771     WXDisplay *dpy = GetXDisplay();
 772     WXCursor x_cursor = cursor2->GetXCursor(dpy);
 773
 774     Widget w = (Widget) GetMainWidget();
 775     Window win = XtWindow(w);
 776     XDefineCursor((Display*) dpy, win, (Cursor) x_cursor);
 777
 778     return TRUE;
 779 }
 780
 781 // Coordinates relative to the window
 782 void wxWindow::WarpPointer (int x, int y)
 783 {
 784     Widget wClient = (Widget)GetClientWidget();
 785
 786     XWarpPointer(XtDisplay(wClient), None, XtWindow(wClient), 0, 0, 0, 0, x, y);
 787 }
 788
 789 // ---------------------------------------------------------------------------
 790 // scrolling stuff
 791 // ---------------------------------------------------------------------------
 792
 793 int wxWindow::GetScrollPos(int orient) const
 794 {
 795     if (orient == wxHORIZONTAL)
 796         return m_scrollPosX;
 797     else
 798         return m_scrollPosY;
 799
 800 #if 0
 801     Widget scrollBar = (Widget) ((orient == wxHORIZONTAL) ? m_hScrollBar : m_vScrollBar);
 802     if (scrollBar)
 803     {
 804         int pos;
 805         XtVaGetValues(scrollBar, XmNvalue, &pos, NULL);
 806         return pos;
 807     }
 808     else
 809         return 0;
 810 #endif // 0
 811 }
 812
 813 // This now returns the whole range, not just the number of positions that we
 814 // can scroll.
 815 int wxWindow::GetScrollRange(int orient) const
 816 {
 817     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 818     wxCHECK_MSG( scrollBar, 0, "no such scrollbar" );
 819
 820     int range = 0;
 821     if (scrollBar)
 822         XtVaGetValues(scrollBar, XmNmaximum, &range, NULL);
 823     return range;
 824 }
 825
 826 int wxWindow::GetScrollThumb(int orient) const
 827 {
 828     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 829     wxCHECK_MSG( scrollBar, 0, "no such scrollbar" );
 830
 831     int thumb;
 832     XtVaGetValues(scrollBar, XmNsliderSize, &thumb, NULL);
 833     return thumb;
 834 }
 835
 836 void wxWindow::SetScrollPos(int orient, int pos, bool WXUNUSED(refresh))
 837 {
 838     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 839
 840     if ( scrollBar )
 841     {
 842         XtVaSetValues (scrollBar, XmNvalue, pos, NULL);
 843     }
 844
 845     SetInternalScrollPos((wxOrientation)orient, pos);
 846 }
 847
 848 // New function that will replace some of the above.
 849 void wxWindow::SetScrollbar(int orient, int pos, int thumbVisible,
 850                             int range, bool WXUNUSED(refresh))
 851 {
 852     int oldW, oldH;
 853     GetSize(& oldW, & oldH);
 854
 855     if (range == 0)
 856         range = 1;
 857     if (thumbVisible == 0)
 858         thumbVisible = 1;
 859
 860     if (thumbVisible > range)
 861         thumbVisible = range;
 862
 863     // Save the old state to see if it changed
 864     WXWidget oldScrollBar = GetScrollbar((wxOrientation)orient);
 865
 866     if (orient == wxHORIZONTAL)
 867     {
 868         if (thumbVisible == range)
 869         {
 870             if (m_hScrollBar)
 871                 DestroyScrollbar(wxHORIZONTAL);
 872         }
 873         else
 874         {
 875             if (!m_hScrollBar)
 876                 CreateScrollbar(wxHORIZONTAL);
 877         }
 878     }
 879     if (orient == wxVERTICAL)
 880     {
 881         if (thumbVisible == range)
 882         {
 883             if (m_vScrollBar)
 884                 DestroyScrollbar(wxVERTICAL);
 885         }
 886         else
 887         {
 888             if (!m_vScrollBar)
 889                 CreateScrollbar(wxVERTICAL);
 890         }
 891     }
 892     WXWidget newScrollBar =  GetScrollbar((wxOrientation)orient);
 893
 894     if (oldScrollBar != newScrollBar)
 895     {
 896         // This is important! Without it, scrollbars misbehave badly.
 897         XtUnrealizeWidget((Widget) m_scrolledWindow);
 898         XmScrolledWindowSetAreas ((Widget) m_scrolledWindow, (Widget) m_hScrollBar, (Widget) m_vScrollBar, (Widget) m_drawingArea);
 899         XtRealizeWidget((Widget) m_scrolledWindow);
 900         XtManageChild((Widget) m_scrolledWindow);
 901     }
 902
 903     if (newScrollBar)
 904     {
 905         XtVaSetValues((Widget) newScrollBar,
 906         XmNvalue, pos,
 907         XmNminimum, 0,
 908         XmNmaximum, range,
 909         XmNsliderSize, thumbVisible,
 910         NULL);
 911     }
 912
 913     SetInternalScrollPos((wxOrientation)orient, pos);
 914
 915     int newW, newH;
 916     GetSize(& newW, & newH);
 917
 918     // Adjusting scrollbars can resize the canvas accidentally
 919     if (newW != oldW || newH != oldH)
 920         SetSize(-1, -1, oldW, oldH);
 921 }
 922
 923 // Does a physical scroll
 924 void wxWindow::ScrollWindow(int dx, int dy, const wxRect *rect)
 925 {
 926     int x, y, w, h;
 927     if (rect)
 928     {
 929         // Use specified rectangle
 930         x = rect->x; y = rect->y; w = rect->width; h = rect->height;
 931     }
 932     else
 933     {
 934         // Use whole client area
 935         x = 0; y = 0;
 936         GetClientSize(& w, & h);
 937     }
 938
 939     wxNode *cnode = m_children.First();
 940     while (cnode)
 941     {
 942         wxWindow *child = (wxWindow*) cnode->Data();
 943         int sx = 0;
 944         int sy = 0;
 945         child->GetSize( &sx, &sy );
 946         wxPoint pos( child->GetPosition() );
 947         child->SetSize( pos.x + dx, pos.y + dy, sx, sy, wxSIZE_ALLOW_MINUS_ONE );
 948         cnode = cnode->Next();
 949     }
 950
 951     int x1 = (dx >= 0) ? x : x - dx;
 952     int y1 = (dy >= 0) ? y : y - dy;
 953     int w1 = w - abs(dx);
 954     int h1 = h - abs(dy);
 955     int x2 = (dx >= 0) ? x + dx : x;
 956     int y2 = (dy >= 0) ? y + dy : y;
 957
 958     wxClientDC dc(this);
 959
 960     dc.SetLogicalFunction (wxCOPY);
 961
 962     Widget widget = (Widget) GetMainWidget();
 963     Window window = XtWindow(widget);
 964     Display* display = XtDisplay(widget);
 965
 966     XCopyArea(display, window, window, (GC) dc.GetGC(),
 967               x1, y1, w1, h1, x2, y2);
 968
 969     dc.SetAutoSetting(TRUE);
 970     wxBrush brush(GetBackgroundColour(), wxSOLID);
 971     dc.SetBrush(brush); // FIXME: needed?
 972
 973     // We'll add rectangles to the list of update rectangles according to which
 974     // bits we've exposed.
 975     wxList updateRects;
 976
 977     if (dx > 0)
 978     {
 979         wxRect *rect = new wxRect;
 980         rect->x = x;
 981         rect->y = y;
 982         rect->width = dx;
 983         rect->height = h;
 984
 985         XFillRectangle(display, window,
 986             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
 987
 988         rect->x = rect->x;
 989         rect->y = rect->y;
 990         rect->width = rect->width;
 991         rect->height = rect->height;
 992
 993         updateRects.Append((wxObject*) rect);
 994     }
 995     else if (dx < 0)
 996     {
 997         wxRect *rect = new wxRect;
 998
 999         rect->x = x + w + dx;
1000         rect->y = y;
1001         rect->width = -dx;
1002         rect->height = h;
1003
1004         XFillRectangle(display, window,
1005             (GC) dc.GetGC(), rect->x, rect->y, rect->width,
1006             rect->height);
1007
1008         rect->x = rect->x;
1009         rect->y = rect->y;
1010         rect->width = rect->width;
1011         rect->height = rect->height;
1012
1013         updateRects.Append((wxObject*) rect);
1014     }
1015     if (dy > 0)
1016     {
1017         wxRect *rect = new wxRect;
1018
1019         rect->x = x;
1020         rect->y = y;
1021         rect->width = w;
1022         rect->height = dy;
1023
1024         XFillRectangle(display, window,
1025             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
1026
1027         rect->x = rect->x;
1028         rect->y = rect->y;
1029         rect->width = rect->width;
1030         rect->height = rect->height;
1031
1032         updateRects.Append((wxObject*) rect);
1033     }
1034     else if (dy < 0)
1035     {
1036         wxRect *rect = new wxRect;
1037
1038         rect->x = x;
1039         rect->y = y + h + dy;
1040         rect->width = w;
1041         rect->height = -dy;
1042
1043         XFillRectangle(display, window,
1044             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
1045
1046         rect->x = rect->x;
1047         rect->y = rect->y;
1048         rect->width = rect->width;
1049         rect->height = rect->height;
1050
1051         updateRects.Append((wxObject*) rect);
1052     }
1053     dc.SetBrush(wxNullBrush);
1054
1055     // Now send expose events
1056
1057     wxNode* node = updateRects.First();
1058     while (node)
1059     {
1060         wxRect* rect = (wxRect*) node->Data();
1061         XExposeEvent event;
1062
1063         event.type = Expose;
1064         event.display = display;
1065         event.send_event = True;
1066         event.window = window;
1067
1068         event.x = rect->x;
1069         event.y = rect->y;
1070         event.width = rect->width;
1071         event.height = rect->height;
1072
1073         event.count = 0;
1074
1075         XSendEvent(display, window, False, ExposureMask, (XEvent *)&event);
1076
1077         node = node->Next();
1078
1079     }
1080
1081     // Delete the update rects
1082     node = updateRects.First();
1083     while (node)
1084     {
1085         wxRect* rect = (wxRect*) node->Data();
1086         delete rect;
1087         node = node->Next();
1088     }
1089
1090     XmUpdateDisplay((Widget) GetMainWidget());
1091 }
1092
1093 // ---------------------------------------------------------------------------
1094 // drag and drop
1095 // ---------------------------------------------------------------------------
1096
1097 #if wxUSE_DRAG_AND_DROP
1098
1099 void wxWindow::SetDropTarget(wxDropTarget * WXUNUSED(pDropTarget))
1100 {
1101     // TODO
1102 }
1103
1104 #endif
1105
1106 // Old style file-manager drag&drop
1107 void wxWindow::DragAcceptFiles(bool WXUNUSED(accept))
1108 {
1109     // TODO
1110 }
1111
1112 // ----------------------------------------------------------------------------
1113 // tooltips
1114 // ----------------------------------------------------------------------------
1115
1116 #if wxUSE_TOOLTIPS
1117
1118 void wxWindow::DoSetToolTip(wxToolTip * WXUNUSED(tooltip))
1119 {
1120     // TODO
1121 }
1122
1123 #endif // wxUSE_TOOLTIPS
1124
1125 // ----------------------------------------------------------------------------
1126 // popup menus
1127 // ----------------------------------------------------------------------------
1128
1129 bool wxWindow::DoPopupMenu(wxMenu *menu, int x, int y)
1130 {
1131     Widget widget = (Widget) GetMainWidget();
1132
1133     /* The menuId field seems to be usused, so we'll use it to
1134     indicate whether a menu is popped up or not:
1135     0: Not currently created as a popup
1136     -1: Created as a popup, but not active
1137     1: Active popup.
1138     */
1139
1140     if (menu->GetParent() && (menu->GetId() != -1))
1141         return FALSE;
1142
1143     if (menu->GetMainWidget()) {
1144         menu->DestroyMenu(TRUE);
1145     }
1146
1147     menu->SetId(1); /* Mark as popped-up */
1148     menu->CreateMenu(NULL, widget, menu);
1149     menu->SetInvokingWindow(this);
1150
1151     menu->UpdateUI();
1152
1153     //  menu->SetParent(parent);
1154     //  parent->children->Append(menu);  // Store menu for later deletion
1155
1156     Widget menuWidget = (Widget) menu->GetMainWidget();
1157
1158     int rootX = 0;
1159     int rootY = 0;
1160
1161     int deviceX = x;
1162     int deviceY = y;
1163     /*
1164     if (this->IsKindOf(CLASSINFO(wxCanvas)))
1165     {
1166     wxCanvas *canvas = (wxCanvas *) this;
1167     deviceX = canvas->GetDC ()->LogicalToDeviceX (x);
1168     deviceY = canvas->GetDC ()->LogicalToDeviceY (y);
1169     }
1170     */
1171
1172     Display *display = XtDisplay (widget);
1173     Window rootWindow = RootWindowOfScreen (XtScreen((Widget)widget));
1174     Window thisWindow = XtWindow (widget);
1175     Window childWindow;
1176     XTranslateCoordinates (display, thisWindow, rootWindow, (int) deviceX, (int) deviceY,
1177         &rootX, &rootY, &childWindow);
1178
1179     XButtonPressedEvent event;
1180     event.type = ButtonPress;
1181     event.button = 1;
1182
1183     event.x = deviceX;
1184     event.y = deviceY;
1185
1186     event.x_root = rootX;
1187     event.y_root = rootY;
1188
1189     XmMenuPosition (menuWidget, &event);
1190     XtManageChild (menuWidget);
1191
1192         XEvent x_event;
1193         // The ID of a pop-up menu is 1 when active, and is set to 0 by the
1194     // idle-time destroy routine.
1195         // Waiting until this ID changes causes this function to block until
1196     // the menu has been dismissed and the widgets cleaned up.
1197     // In other words, once this routine returns, it is safe to delete
1198     // the menu object.
1199     // Ian Brown <ian.brown@printsoft.de>
1200         while (menu->GetId() == 1)
1201     {
1202         XtAppNextEvent( (XtAppContext) wxTheApp->GetAppContext(), &x_event);
1203
1204         wxTheApp->ProcessXEvent((WXEvent*) & x_event);
1205
1206         if (XtAppPending( (XtAppContext) wxTheApp->GetAppContext() ) == 0)
1207         {
1208             if (!wxTheApp->ProcessIdle())
1209             {
1210 #if wxUSE_THREADS
1211                 // leave the main loop to give other threads a chance to
1212                 // perform their GUI work
1213                 wxMutexGuiLeave();
1214                 wxUsleep(20);
1215                 wxMutexGuiEnter();
1216 #endif
1217             }
1218         }
1219     }
1220     return TRUE;
1221 }
1222
1223 // ---------------------------------------------------------------------------
1224 // moving and resizing
1225 // ---------------------------------------------------------------------------
1226
1227 bool wxWindow::PreResize()
1228 {
1229     return TRUE;
1230 }
1231
1232 // Get total size
1233 void wxWindow::DoGetSize(int *x, int *y) const
1234 {
1235     if (m_drawingArea)
1236     {
1237         CanvasGetSize(x, y);
1238         return;
1239     }
1240
1241     Widget widget = (Widget) GetTopWidget();
1242     Dimension xx, yy;
1243     XtVaGetValues(widget, XmNwidth, &xx, XmNheight, &yy, NULL);
1244     if(x) *x = xx; if(y) *y = yy;
1245 }
1246
1247 void wxWindow::DoGetPosition(int *x, int *y) const
1248 {
1249     if (m_drawingArea)
1250     {
1251         CanvasGetPosition(x, y);
1252         return;
1253     }
1254     Widget widget = (Widget) GetTopWidget();
1255     Position xx, yy;
1256     XtVaGetValues(widget, XmNx, &xx, XmNy, &yy, NULL);
1257
1258     // We may be faking the client origin. So a window that's really at (0, 30)
1259     // may appear (to wxWin apps) to be at (0, 0).
1260     if (GetParent())
1261     {
1262         wxPoint pt(GetParent()->GetClientAreaOrigin());
1263         xx -= pt.x;
1264         yy -= pt.y;
1265     }
1266
1267     if(x) *x = xx; if(y) *y = yy;
1268 }
1269
1270 void wxWindow::DoScreenToClient(int *x, int *y) const
1271 {
1272     Widget widget = (Widget) GetClientWidget();
1273     Display *display = XtDisplay((Widget) GetMainWidget());
1274     Window rootWindow = RootWindowOfScreen(XtScreen(widget));
1275     Window thisWindow = XtWindow(widget);
1276
1277     Window childWindow;
1278     int xx = *x;
1279     int yy = *y;
1280     XTranslateCoordinates(display, rootWindow, thisWindow, xx, yy, x, y, &childWindow);
1281 }
1282
1283 void wxWindow::DoClientToScreen(int *x, int *y) const
1284 {
1285     Widget widget = (Widget) GetClientWidget();
1286     Display *display = XtDisplay(widget);
1287     Window rootWindow = RootWindowOfScreen(XtScreen(widget));
1288     Window thisWindow = XtWindow(widget);
1289
1290     Window childWindow;
1291     int xx = *x;
1292     int yy = *y;
1293     XTranslateCoordinates(display, thisWindow, rootWindow, xx, yy, x, y, &childWindow);
1294 }
1295
1296
1297 // Get size *available for subwindows* i.e. excluding menu bar etc.
1298 void wxWindow::DoGetClientSize(int *x, int *y) const
1299 {
1300     Widget widget = (Widget) GetClientWidget();
1301     Dimension xx, yy;
1302     XtVaGetValues(widget, XmNwidth, &xx, XmNheight, &yy, NULL);
1303     if(x) *x = xx; if(y) *y = yy;
1304 }
1305
1306 void wxWindow::DoSetSize(int x, int y, int width, int height, int sizeFlags)
1307 {
1308     // A bit of optimization to help sort out the flickers.
1309     int oldX, oldY, oldW, oldH;
1310     GetSize(& oldW, & oldH);
1311     GetPosition(& oldX, & oldY);
1312
1313     if ( !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
1314     {
1315         if ( x == -1 )
1316             x = oldX;
1317         if ( y == -1 )
1318             y = oldY;
1319     }
1320
1321     if ( width == -1 )
1322         width = oldW;
1323     if ( height == -1 )
1324         height = oldH;
1325
1326     bool nothingChanged = (x == oldX) && (y == oldY) &&
1327                           (width == oldW) && (height == oldH);
1328
1329     if (!wxNoOptimize::CanOptimize())
1330     {
1331         nothingChanged = FALSE;
1332     }
1333
1334     if ( !nothingChanged )
1335     {
1336         if (m_drawingArea)
1337         {
1338             CanvasSetSize(x, y, width, height, sizeFlags);
1339             return;
1340         }
1341
1342         Widget widget = (Widget) GetTopWidget();
1343         if (!widget)
1344             return;
1345
1346         bool managed = XtIsManaged( widget );
1347         if (managed)
1348             XtUnmanageChild(widget);
1349
1350         int xx = x;
1351         int yy = y;
1352         AdjustForParentClientOrigin(xx, yy, sizeFlags);
1353
1354         DoMoveWindow(xx, yy, width, height);
1355
1356         if (managed)
1357             XtManageChild(widget);
1358
1359         // How about this bit. Maybe we don't need to generate size events
1360         // all the time -- they'll be generated when the window is sized anyway.
1361 #if 0
1362         wxSizeEvent sizeEvent(wxSize(width, height), GetId());
1363         sizeEvent.SetEventObject(this);
1364
1365         GetEventHandler()->ProcessEvent(sizeEvent);
1366 #endif // 0
1367     }
1368 }
1369
1370 void wxWindow::DoSetClientSize(int width, int height)
1371 {
1372     if (m_drawingArea)
1373     {
1374         CanvasSetClientSize(width, height);
1375         return;
1376     }
1377
1378     Widget widget = (Widget) GetTopWidget();
1379
1380     if (width > -1)
1381         XtVaSetValues(widget, XmNwidth, width, NULL);
1382     if (height > -1)
1383         XtVaSetValues(widget, XmNheight, height, NULL);
1384
1385     wxSizeEvent sizeEvent(wxSize(width, height), GetId());
1386     sizeEvent.SetEventObject(this);
1387
1388     GetEventHandler()->ProcessEvent(sizeEvent);
1389 }
1390
1391 // For implementation purposes - sometimes decorations make the client area
1392 // smaller
1393 wxPoint wxWindow::GetClientAreaOrigin() const
1394 {
1395     return wxPoint(0, 0);
1396 }
1397
1398 void wxWindow::SetSizeHints(int minW, int minH, int maxW, int maxH, int incW, int incH)
1399 {
1400     m_minWidth = minW;
1401     m_minHeight = minH;
1402     m_maxWidth = maxW;
1403     m_maxHeight = maxH;
1404
1405     wxFrame *frame = wxDynamicCast(this, wxFrame);
1406     if ( !frame )
1407     {
1408         // TODO what about dialogs?
1409         return;
1410     }
1411
1412     Widget widget = (Widget) frame->GetShellWidget();
1413
1414     if (minW > -1)
1415         XtVaSetValues(widget, XmNminWidth, minW, NULL);
1416     if (minH > -1)
1417         XtVaSetValues(widget, XmNminHeight, minH, NULL);
1418     if (maxW > -1)
1419         XtVaSetValues(widget, XmNmaxWidth, maxW, NULL);
1420     if (maxH > -1)
1421         XtVaSetValues(widget, XmNmaxHeight, maxH, NULL);
1422     if (incW > -1)
1423         XtVaSetValues(widget, XmNwidthInc, incW, NULL);
1424     if (incH > -1)
1425         XtVaSetValues(widget, XmNheightInc, incH, NULL);
1426 }
1427
1428 void wxWindow::DoMoveWindow(int x, int y, int width, int height)
1429 {
1430     XtVaSetValues((Widget)GetTopWidget(),
1431                   XmNx, x,
1432                   XmNy, y,
1433                   XmNwidth, width,
1434                   XmNheight, height,
1435                   NULL);
1436 }
1437
1438 // ---------------------------------------------------------------------------
1439 // text metrics
1440 // ---------------------------------------------------------------------------
1441
1442 int wxWindow::GetCharHeight() const
1443 {
1444     wxCHECK_MSG( m_font.Ok(), 0, "valid window font needed" );
1445
1446     WXFontStructPtr pFontStruct = m_font.GetFontStruct(1.0, GetXDisplay());
1447
1448     int direction, ascent, descent;
1449     XCharStruct overall;
1450     XTextExtents ((XFontStruct*) pFontStruct, "x", 1, &direction, &ascent,
1451         &descent, &overall);
1452
1453     //  return (overall.ascent + overall.descent);
1454     return (ascent + descent);
1455 }
1456
1457 int wxWindow::GetCharWidth() const
1458 {
1459     wxCHECK_MSG( m_font.Ok(), 0, "valid window font needed" );
1460
1461     WXFontStructPtr pFontStruct = m_font.GetFontStruct(1.0, GetXDisplay());
1462
1463     int direction, ascent, descent;
1464     XCharStruct overall;
1465     XTextExtents ((XFontStruct*) pFontStruct, "x", 1, &direction, &ascent,
1466         &descent, &overall);
1467
1468     return overall.width;
1469 }
1470
1471 void wxWindow::GetTextExtent(const wxString& string,
1472                              int *x, int *y,
1473                              int *descent, int *externalLeading,
1474                              const wxFont *theFont) const
1475 {
1476     wxFont *fontToUse = (wxFont *)theFont;
1477     if (!fontToUse)
1478         fontToUse = (wxFont *) & m_font;
1479
1480     wxCHECK_RET( fontToUse->Ok(), "valid window font needed" );
1481
1482     WXFontStructPtr pFontStruct = theFont->GetFontStruct(1.0, GetXDisplay());
1483
1484     int direction, ascent, descent2;
1485     XCharStruct overall;
1486     int slen = string.Len();
1487
1488 #if 0
1489     if (use16)
1490         XTextExtents16((XFontStruct*) pFontStruct, (XChar2b *) (char*) (const char*) string, slen, &direction,
1491         &ascent, &descent2, &overall);
1492 #endif
1493
1494     XTextExtents((XFontStruct*) pFontStruct, string, slen,
1495                  &direction, &ascent, &descent2, &overall);
1496
1497     if ( x )
1498         *x = (overall.width);
1499     if ( y )
1500         *y = (ascent + descent2);
1501     if (descent)
1502         *descent = descent2;
1503     if (externalLeading)
1504         *externalLeading = 0;
1505
1506 }
1507
1508 // ----------------------------------------------------------------------------
1509 // painting
1510 // ----------------------------------------------------------------------------
1511
1512 void wxWindow::Refresh(bool eraseBack, const wxRect *rect)
1513 {
1514     m_needsRefresh = TRUE;
1515     Display *display = XtDisplay((Widget) GetMainWidget());
1516     Window thisWindow = XtWindow((Widget) GetMainWidget());
1517
1518     XExposeEvent dummyEvent;
1519     int width, height;
1520     GetSize(&width, &height);
1521
1522     dummyEvent.type = Expose;
1523     dummyEvent.display = display;
1524     dummyEvent.send_event = True;
1525     dummyEvent.window = thisWindow;
1526     if (rect)
1527     {
1528         dummyEvent.x = rect->x;
1529         dummyEvent.y = rect->y;
1530         dummyEvent.width = rect->width;
1531         dummyEvent.height = rect->height;
1532     }
1533     else
1534     {
1535         dummyEvent.x = 0;
1536         dummyEvent.y = 0;
1537         dummyEvent.width = width;
1538         dummyEvent.height = height;
1539     }
1540     dummyEvent.count = 0;
1541
1542     if (eraseBack)
1543     {
1544         wxClientDC dc(this);
1545         wxBrush backgroundBrush(GetBackgroundColour(), wxSOLID);
1546         dc.SetBackground(backgroundBrush);
1547         if (rect)
1548             dc.Clear(*rect);
1549         else
1550             dc.Clear();
1551     }
1552
1553     XSendEvent(display, thisWindow, False, ExposureMask, (XEvent *)&dummyEvent);
1554 }
1555
1556 void wxWindow::Clear()
1557 {
1558     wxClientDC dc(this);
1559     wxBrush brush(GetBackgroundColour(), wxSOLID);
1560     dc.SetBackground(brush);
1561     dc.Clear();
1562 }
1563
1564 void wxWindow::ClearUpdateRects()
1565 {
1566     wxRectList::Node* node = m_updateRects.GetFirst();
1567     while (node)
1568     {
1569         wxRect* rect = node->GetData();
1570         delete rect;
1571         node = node->GetNext();
1572     }
1573
1574     m_updateRects.Clear();
1575 }
1576
1577 void wxWindow::DoPaint()
1578 {
1579     //TODO : make a temporary gc so we can do the XCopyArea below
1580     if (m_backingPixmap && !m_needsRefresh)
1581     {
1582       wxPaintDC dc(this);
1583
1584       GC tempGC = (GC) dc.GetBackingGC();
1585
1586       Widget widget = (Widget) GetMainWidget();
1587
1588       int scrollPosX = 0;
1589       int scrollPosY = 0;
1590
1591       // We have to test whether it's a wxScrolledWindow (hack!) because
1592       // otherwise we don't know how many pixels have been scrolled. We might
1593       // solve this in the future by defining virtual wxWindow functions to get
1594       // the scroll position in pixels. Or, each kind of scrolled window has to
1595       // implement backing stores itself, using generic wxWindows code.
1596       wxScrolledWindow* scrolledWindow = wxDynamicCast(this, wxScrolledWindow);
1597       if ( scrolledWindow )
1598       {
1599           int x, y;
1600           scrolledWindow->CalcScrolledPosition(0, 0, &x, &y);
1601
1602           scrollPosX = - x;
1603           scrollPosY = - y;
1604       }
1605
1606       // TODO: This could be optimized further by only copying the areas in the
1607       //       current update region.
1608
1609       // Only blit the part visible in the client area. The backing pixmap
1610       // always starts at 0, 0 but we may be looking at only a portion of it.
1611       wxSize clientArea = GetClientSize();
1612       int toBlitX = m_pixmapWidth - scrollPosX;
1613       int toBlitY = m_pixmapHeight - scrollPosY;
1614
1615       // Copy whichever is samller, the amount of pixmap we have to copy,
1616       // or the size of the client area.
1617       toBlitX = wxMin(toBlitX, clientArea.x);
1618       toBlitY = wxMin(toBlitY, clientArea.y);
1619
1620       // Make sure we're not negative
1621       toBlitX = wxMax(0, toBlitX);
1622       toBlitY = wxMax(0, toBlitY);
1623
1624       XCopyArea
1625       (
1626        XtDisplay(widget),
1627        (Pixmap) m_backingPixmap,
1628        XtWindow (widget),
1629        tempGC,
1630        scrollPosX, scrollPosY, // Start at the scroll position
1631        toBlitX, toBlitY,       // How much of the pixmap to copy
1632        0, 0                    // Destination
1633       );
1634     }
1635     else
1636     {
1637         // Set an erase event first
1638         wxEraseEvent eraseEvent(GetId());
1639         eraseEvent.SetEventObject(this);
1640         GetEventHandler()->ProcessEvent(eraseEvent);
1641
1642         wxPaintEvent event(GetId());
1643         event.SetEventObject(this);
1644         GetEventHandler()->ProcessEvent(event);
1645
1646         m_needsRefresh = FALSE;
1647     }
1648 }
1649
1650 // ----------------------------------------------------------------------------
1651 // event handlers
1652 // ----------------------------------------------------------------------------
1653
1654 // Responds to colour changes: passes event on to children.
1655 void wxWindow::OnSysColourChanged(wxSysColourChangedEvent& event)
1656 {
1657     wxWindowList::Node *node = GetChildren().GetFirst();
1658     while ( node )
1659     {
1660         // Only propagate to non-top-level windows
1661         wxWindow *win = node->GetData();
1662         if ( win->GetParent() )
1663         {
1664             wxSysColourChangedEvent event2;
1665             event.m_eventObject = win;
1666             win->GetEventHandler()->ProcessEvent(event2);
1667         }
1668
1669         node = node->GetNext();
1670     }
1671 }
1672
1673 void wxWindow::OnIdle(wxIdleEvent& WXUNUSED(event))
1674 {
1675     // This calls the UI-update mechanism (querying windows for
1676     // menu/toolbar/control state information)
1677     UpdateWindowUI();
1678 }
1679
1680 // ----------------------------------------------------------------------------
1681 // accelerators
1682 // ----------------------------------------------------------------------------
1683
1684 bool wxWindow::ProcessAccelerator(wxKeyEvent& event)
1685 {
1686     if (!m_acceleratorTable.Ok())
1687         return FALSE;
1688
1689     int count = m_acceleratorTable.GetCount();
1690     wxAcceleratorEntry* entries = m_acceleratorTable.GetEntries();
1691     int i;
1692     for (i = 0; i < count; i++)
1693     {
1694         wxAcceleratorEntry* entry = & (entries[i]);
1695         if (entry->MatchesEvent(event))
1696         {
1697             // Bingo, we have a match. Now find a control that matches the
1698             // entry command id.
1699
1700             // Need to go up to the top of the window hierarchy, since it might
1701             // be e.g. a menu item
1702             wxWindow* parent = this;
1703             while ( parent && !parent->IsTopLevel() )
1704                 parent = parent->GetParent();
1705
1706             if (!parent)
1707                 return FALSE;
1708
1709             wxFrame* frame = wxDynamicCast(parent, wxFrame);
1710             if ( frame )
1711             {
1712                 // Try for a menu command
1713                 if (frame->GetMenuBar())
1714                 {
1715                     wxMenuItem* item = frame->GetMenuBar()->FindItem(entry->GetCommand());
1716                     if (item)
1717                     {
1718                         wxCommandEvent commandEvent(wxEVT_COMMAND_MENU_SELECTED, entry->GetCommand());
1719                         commandEvent.SetEventObject(frame);
1720
1721                         // If ProcessEvent returns TRUE (it was handled), then
1722                         // the calling code will skip the event handling.
1723                         return frame->GetEventHandler()->ProcessEvent(commandEvent);
1724                     }
1725                 }
1726             }
1727
1728             // Find a child matching the command id
1729             wxWindow* child = parent->FindWindow(entry->GetCommand());
1730
1731             // No such child
1732             if (!child)
1733                 return FALSE;
1734
1735             // Now we process those kinds of windows that we can.
1736             // For now, only buttons.
1737             if ( wxDynamicCast(child, wxButton) )
1738             {
1739                 wxCommandEvent commandEvent (wxEVT_COMMAND_BUTTON_CLICKED, child->GetId());
1740                 commandEvent.SetEventObject(child);
1741                 return child->GetEventHandler()->ProcessEvent(commandEvent);
1742             }
1743
1744             return FALSE;
1745         } // matches event
1746     }// for
1747
1748     // We didn't match the key event against an accelerator.
1749     return FALSE;
1750 }
1751
1752 // ============================================================================
1753 // Motif-specific stuff from here on
1754 // ============================================================================
1755
1756 // ----------------------------------------------------------------------------
1757 // function which maintain the global hash table mapping Widgets to wxWindows
1758 // ----------------------------------------------------------------------------
1759
1760 bool wxAddWindowToTable(Widget w, wxWindow *win)
1761 {
1762     wxWindow *oldItem = NULL;
1763     if ((oldItem = (wxWindow *)wxWidgetHashTable->Get ((long) w)))
1764     {
1765         wxLogDebug("Widget table clash: new widget is %ld, %s",
1766                    (long)w, win->GetClassInfo()->GetClassName());
1767         return FALSE;
1768     }
1769
1770     wxWidgetHashTable->Put((long) w, win);
1771
1772     wxLogTrace("widget", "Widget 0x%08x <-> window %p (%s)",
1773                w, win, win->GetClassInfo()->GetClassName());
1774
1775     return TRUE;
1776 }
1777
1778 wxWindow *wxGetWindowFromTable(Widget w)
1779 {
1780     return (wxWindow *)wxWidgetHashTable->Get((long) w);
1781 }
1782
1783 void wxDeleteWindowFromTable(Widget w)
1784 {
1785     wxWidgetHashTable->Delete((long)w);
1786 }
1787
1788 // ----------------------------------------------------------------------------
1789 // add/remove window from the table
1790 // ----------------------------------------------------------------------------
1791
1792 // Add to hash table, add event handler
1793 bool wxWindow::AttachWidget (wxWindow* WXUNUSED(parent), WXWidget mainWidget,
1794                              WXWidget formWidget, int x, int y, int width, int height)
1795 {
1796     wxAddWindowToTable((Widget) mainWidget, this);
1797     if (CanAddEventHandler())
1798     {
1799         XtAddEventHandler((Widget) mainWidget,
1800             ButtonPressMask | ButtonReleaseMask | PointerMotionMask, // | KeyPressMask,
1801             False,
1802             wxPanelItemEventHandler,
1803             (XtPointer) this);
1804     }
1805
1806     if (!formWidget)
1807     {
1808         XtTranslations ptr;
1809         XtOverrideTranslations ((Widget) mainWidget,
1810             ptr = XtParseTranslationTable ("<Configure>: resize()"));
1811         XtFree ((char *) ptr);
1812     }
1813
1814     // Some widgets have a parent form widget, e.g. wxRadioBox
1815     if (formWidget)
1816     {
1817         if (!wxAddWindowToTable((Widget) formWidget, this))
1818             return FALSE;
1819
1820         XtTranslations ptr;
1821         XtOverrideTranslations ((Widget) formWidget,
1822             ptr = XtParseTranslationTable ("<Configure>: resize()"));
1823         XtFree ((char *) ptr);
1824     }
1825
1826     if (x == -1)
1827         x = 0;
1828     if (y == -1)
1829         y = 0;
1830     SetSize (x, y, width, height);
1831
1832     return TRUE;
1833 }
1834
1835 // Remove event handler, remove from hash table
1836 bool wxWindow::DetachWidget(WXWidget widget)
1837 {
1838     if (CanAddEventHandler())
1839     {
1840         XtRemoveEventHandler((Widget) widget,
1841             ButtonPressMask | ButtonReleaseMask | PointerMotionMask, // | KeyPressMask,
1842             False,
1843             wxPanelItemEventHandler,
1844             (XtPointer)this);
1845     }
1846
1847     wxDeleteWindowFromTable((Widget) widget);
1848     return TRUE;
1849 }
1850
1851 // ----------------------------------------------------------------------------
1852 // Motif-specific accessors
1853 // ----------------------------------------------------------------------------
1854
1855 // Get the underlying X window
1856 WXWindow wxWindow::GetXWindow() const
1857 {
1858     Widget wMain = (Widget)GetMainWidget();
1859     if ( wMain )
1860         return (WXWindow) XtWindow(wMain);
1861     else
1862         return (WXWindow) 0;
1863 }
1864
1865 // Get the underlying X display
1866 WXDisplay *wxWindow::GetXDisplay() const
1867 {
1868     Widget wMain = (Widget)GetMainWidget();
1869     if ( wMain )
1870         return (WXDisplay*) XtDisplay(wMain);
1871     else
1872         return (WXDisplay*) NULL;
1873 }
1874
1875 WXWidget wxWindow::GetMainWidget() const
1876 {
1877     if (m_drawingArea)
1878         return m_drawingArea;
1879     else
1880         return m_mainWidget;
1881 }
1882
1883 WXWidget wxWindow::GetClientWidget() const
1884 {
1885     if (m_drawingArea != (WXWidget) 0)
1886         return m_drawingArea;
1887     else
1888         return GetMainWidget();
1889 }
1890
1891 WXWidget wxWindow::GetTopWidget() const
1892 {
1893     return GetMainWidget();
1894 }
1895
1896 WXWidget wxWindow::GetLabelWidget() const
1897 {
1898     return GetMainWidget();
1899 }
1900
1901 // ----------------------------------------------------------------------------
1902 // Motif callbacks
1903 // ----------------------------------------------------------------------------
1904
1905 // All widgets should have this as their resize proc.
1906 // OnSize sent to wxWindow via client data.
1907 void wxWidgetResizeProc(Widget w, XConfigureEvent *WXUNUSED(event), String WXUNUSED(args)[], int *WXUNUSED(num_args))
1908 {
1909     wxWindow *win = wxGetWindowFromTable(w);
1910     if (!win)
1911         return;
1912
1913     if (win->PreResize())
1914     {
1915         int width, height;
1916         win->GetSize(&width, &height);
1917         wxSizeEvent sizeEvent(wxSize(width, height), win->GetId());
1918         sizeEvent.SetEventObject(win);
1919         win->GetEventHandler()->ProcessEvent(sizeEvent);
1920     }
1921 }
1922
1923 static void wxCanvasRepaintProc(Widget drawingArea,
1924                                 XtPointer clientData,
1925                                 XmDrawingAreaCallbackStruct * cbs)
1926 {
1927     if (!wxGetWindowFromTable(drawingArea))
1928         return;
1929
1930     XEvent * event = cbs->event;
1931     wxWindow * win = (wxWindow *) clientData;
1932
1933     switch (event->type)
1934     {
1935     case Expose:
1936         {
1937             win->AddUpdateRect(event->xexpose.x, event->xexpose.y,
1938                                event->xexpose.width, event->xexpose.height);
1939
1940             if (event -> xexpose.count == 0)
1941             {
1942                 win->DoPaint();
1943                 win->ClearUpdateRects();
1944             }
1945             break;
1946         }
1947     }
1948 }
1949
1950 // Unable to deal with Enter/Leave without a separate EventHandler (Motif 1.1.4)
1951 static void wxCanvasEnterLeave(Widget drawingArea,
1952                                XtPointer WXUNUSED(clientData),
1953                                XCrossingEvent * event)
1954 {
1955     XmDrawingAreaCallbackStruct cbs;
1956     XEvent ev;
1957
1958     ((XCrossingEvent &) ev) = *event;
1959
1960     cbs.reason = XmCR_INPUT;
1961     cbs.event = &ev;
1962
1963     wxCanvasInputEvent(drawingArea, (XtPointer) NULL, &cbs);
1964 }
1965
1966 // Fix to make it work under Motif 1.0 (!)
1967 static void wxCanvasMotionEvent (Widget WXUNUSED(drawingArea), XButtonEvent * WXUNUSED(event))
1968 {
1969 #if XmVersion <= 1000
1970     XmDrawingAreaCallbackStruct cbs;
1971     XEvent ev;
1972
1973     ev = *((XEvent *) event);
1974     cbs.reason = XmCR_INPUT;
1975     cbs.event = &ev;
1976
1977     wxCanvasInputEvent (drawingArea, (XtPointer) NULL, &cbs);
1978 #endif // XmVersion <= 1000
1979 }
1980
1981 static void wxCanvasInputEvent(Widget drawingArea,
1982                                XtPointer WXUNUSED(data),
1983                                XmDrawingAreaCallbackStruct * cbs)
1984 {
1985     wxWindow *canvas = wxGetWindowFromTable(drawingArea);
1986     XEvent local_event;
1987
1988     if (canvas==NULL)
1989         return;
1990
1991     if (cbs->reason != XmCR_INPUT)
1992         return;
1993
1994     local_event = *(cbs->event);    // We must keep a copy!
1995
1996     switch (local_event.xany.type)
1997     {
1998     case EnterNotify:
1999     case LeaveNotify:
2000     case ButtonPress:
2001     case ButtonRelease:
2002     case MotionNotify:
2003         {
2004             // FIXME: most of this mouse event code is more or less
2005             // duplicated in wxTranslateMouseEvent
2006             //
2007             wxEventType eventType = wxEVT_NULL;
2008
2009             if (local_event.xany.type == EnterNotify)
2010             {
2011                 //if (local_event.xcrossing.mode!=NotifyNormal)
2012                 //  return ; // Ignore grab events
2013                 eventType = wxEVT_ENTER_WINDOW;
2014                 //            canvas->GetEventHandler()->OnSetFocus();
2015             }
2016             else if (local_event.xany.type == LeaveNotify)
2017             {
2018                 //if (local_event.xcrossingr.mode!=NotifyNormal)
2019                 //  return ; // Ignore grab events
2020                 eventType = wxEVT_LEAVE_WINDOW;
2021                 //            canvas->GetEventHandler()->OnKillFocus();
2022             }
2023             else if (local_event.xany.type == MotionNotify)
2024             {
2025                 eventType = wxEVT_MOTION;
2026             }
2027
2028             else if (local_event.xany.type == ButtonPress)
2029             {
2030                 if (local_event.xbutton.button == Button1)
2031                 {
2032                     eventType = wxEVT_LEFT_DOWN;
2033                     canvas->SetButton1(TRUE);
2034                 }
2035                 else if (local_event.xbutton.button == Button2)
2036                 {
2037                     eventType = wxEVT_MIDDLE_DOWN;
2038                     canvas->SetButton2(TRUE);
2039                 }
2040                 else if (local_event.xbutton.button == Button3)
2041                 {
2042                     eventType = wxEVT_RIGHT_DOWN;
2043                     canvas->SetButton3(TRUE);
2044                 }
2045             }
2046             else if (local_event.xany.type == ButtonRelease)
2047             {
2048                 if (local_event.xbutton.button == Button1)
2049                 {
2050                     eventType = wxEVT_LEFT_UP;
2051                     canvas->SetButton1(FALSE);
2052                 }
2053                 else if (local_event.xbutton.button == Button2)
2054                 {
2055                     eventType = wxEVT_MIDDLE_UP;
2056                     canvas->SetButton2(FALSE);
2057                 }
2058                 else if (local_event.xbutton.button == Button3)
2059                 {
2060                     eventType = wxEVT_RIGHT_UP;
2061                     canvas->SetButton3(FALSE);
2062                 }
2063             }
2064
2065             wxMouseEvent wxevent (eventType);
2066
2067             wxevent.m_leftDown = ((eventType == wxEVT_LEFT_DOWN)
2068                 || (event_left_is_down (&local_event)
2069                 && (eventType != wxEVT_LEFT_UP)));
2070             wxevent.m_middleDown = ((eventType == wxEVT_MIDDLE_DOWN)
2071                 || (event_middle_is_down (&local_event)
2072                 && (eventType != wxEVT_MIDDLE_UP)));
2073             wxevent.m_rightDown = ((eventType == wxEVT_RIGHT_DOWN)
2074                 || (event_right_is_down (&local_event)
2075                 && (eventType != wxEVT_RIGHT_UP)));
2076
2077             wxevent.m_shiftDown = local_event.xbutton.state & ShiftMask;
2078             wxevent.m_controlDown = local_event.xbutton.state & ControlMask;
2079             wxevent.m_altDown = local_event.xbutton.state & Mod3Mask;
2080             wxevent.m_metaDown = local_event.xbutton.state & Mod1Mask;
2081             wxevent.SetTimestamp(local_event.xbutton.time);
2082
2083            if ( eventType == wxEVT_MOTION )
2084            {
2085                 if (local_event.xmotion.is_hint == NotifyHint)
2086                 {
2087                     Window root, child;
2088                     Display *dpy = XtDisplay (drawingArea);
2089
2090                     XQueryPointer (dpy, XtWindow (drawingArea),
2091                         &root, &child,
2092                         &local_event.xmotion.x_root,
2093                         &local_event.xmotion.y_root,
2094                         &local_event.xmotion.x,
2095                         &local_event.xmotion.y,
2096                         &local_event.xmotion.state);
2097                 }
2098                 else
2099                 {
2100                 }
2101            }
2102
2103             // Now check if we need to translate this event into a double click
2104             if (TRUE) // canvas->doubleClickAllowed)
2105             {
2106                 if (wxevent.ButtonDown())
2107                 {
2108                     long dclickTime = XtGetMultiClickTime((Display*) wxGetDisplay());
2109
2110                     // get button and time-stamp
2111                     int button = 0;
2112                     if (wxevent.LeftDown())
2113                         button = 1;
2114                     else if (wxevent.MiddleDown())
2115                         button = 2;
2116                     else if (wxevent.RightDown())
2117                         button = 3;
2118                     long ts = wxevent.GetTimestamp();
2119
2120                     // check, if single or double click
2121                     int buttonLast = canvas->GetLastClickedButton();
2122                     long lastTS = canvas->GetLastClickTime();
2123                     if ( buttonLast && buttonLast == button && (ts - lastTS) < dclickTime )
2124                     {
2125                         // I have a dclick
2126                         canvas->SetLastClick(0, ts);
2127
2128                         wxEventType typeDouble;
2129                         if ( eventType == wxEVT_LEFT_DOWN )
2130                             typeDouble = wxEVT_LEFT_DCLICK;
2131                         else if ( eventType == wxEVT_MIDDLE_DOWN )
2132                             typeDouble = wxEVT_MIDDLE_DCLICK;
2133                         else if ( eventType == wxEVT_RIGHT_DOWN )
2134                             typeDouble = wxEVT_RIGHT_DCLICK;
2135                         else
2136                             typeDouble = wxEVT_NULL;
2137
2138                         if ( typeDouble != wxEVT_NULL )
2139                         {
2140                             wxevent.SetEventType(typeDouble);
2141                         }
2142                     }
2143                     else
2144                     {
2145                         // not fast enough or different button
2146                         canvas->SetLastClick(button, ts);
2147                     }
2148                 }
2149             }
2150
2151             wxevent.SetId(canvas->GetId());
2152             wxevent.SetEventObject(canvas);
2153             wxevent.m_x = local_event.xbutton.x;
2154             wxevent.m_y = local_event.xbutton.y;
2155             canvas->GetEventHandler()->ProcessEvent (wxevent);
2156 #if 0
2157             if (eventType == wxEVT_ENTER_WINDOW ||
2158                     eventType == wxEVT_LEAVE_WINDOW ||
2159                     eventType == wxEVT_MOTION
2160                )
2161                 return;
2162 #endif // 0
2163             break;
2164       }
2165     case KeyPress:
2166         {
2167             KeySym keySym;
2168             static char buf[100];
2169 #if 0
2170             XComposeStatus compose;
2171             (void) XLookupString ((XKeyEvent *) & local_event, buf, 20, &keySym, &compose);
2172 #endif // 0
2173
2174             (void) XLookupString ((XKeyEvent *) & local_event, buf, 20, &keySym, NULL);
2175             int id = wxCharCodeXToWX (keySym);
2176
2177             wxEventType eventType = wxEVT_CHAR;
2178
2179             wxKeyEvent event (eventType);
2180
2181             if (local_event.xkey.state & ShiftMask)
2182                 event.m_shiftDown = TRUE;
2183             if (local_event.xkey.state & ControlMask)
2184                 event.m_controlDown = TRUE;
2185             if (local_event.xkey.state & Mod3Mask)
2186                 event.m_altDown = TRUE;
2187             if (local_event.xkey.state & Mod1Mask)
2188                 event.m_metaDown = TRUE;
2189             event.SetEventObject(canvas);
2190             event.m_keyCode = id;
2191             event.SetTimestamp(local_event.xkey.time);
2192
2193             if (id > -1)
2194             {
2195                 // Implement wxFrame::OnCharHook by checking ancestor.
2196                 wxWindow *parent = canvas->GetParent();
2197                 while (parent && !parent->IsKindOf(CLASSINFO(wxFrame)))
2198                     parent = parent->GetParent();
2199
2200                 if (parent)
2201                 {
2202                     event.SetEventType(wxEVT_CHAR_HOOK);
2203                     if (parent->GetEventHandler()->ProcessEvent(event))
2204                         return;
2205                 }
2206
2207                 // For simplicity, OnKeyDown is the same as OnChar
2208                 // TODO: filter modifier key presses from OnChar
2209                 event.SetEventType(wxEVT_KEY_DOWN);
2210
2211                 // Only process OnChar if OnKeyDown didn't swallow it
2212                 if (!canvas->GetEventHandler()->ProcessEvent (event))
2213                 {
2214                   event.SetEventType(wxEVT_CHAR);
2215                   canvas->GetEventHandler()->ProcessEvent (event);
2216         }
2217             }
2218             break;
2219         }
2220     case KeyRelease:
2221         {
2222             static char buf[100];
2223             KeySym keySym;
2224             (void) XLookupString ((XKeyEvent *) & local_event, buf, 20, &keySym, NULL);
2225             int id = wxCharCodeXToWX (keySym);
2226
2227             wxKeyEvent event (wxEVT_KEY_UP);
2228
2229             if (local_event.xkey.state & ShiftMask)
2230                 event.m_shiftDown = TRUE;
2231             if (local_event.xkey.state & ControlMask)
2232                 event.m_controlDown = TRUE;
2233             if (local_event.xkey.state & Mod3Mask)
2234                 event.m_altDown = TRUE;
2235             if (local_event.xkey.state & Mod1Mask)
2236                 event.m_metaDown = TRUE;
2237             event.SetEventObject(canvas);
2238             event.m_keyCode = id;
2239             event.SetTimestamp(local_event.xkey.time);
2240
2241             if (id > -1)
2242             {
2243                 canvas->GetEventHandler()->ProcessEvent (event);
2244             }
2245             break;
2246         }
2247     case FocusIn:
2248         {
2249             if (local_event.xfocus.detail != NotifyPointer)
2250             {
2251                 wxFocusEvent event(wxEVT_SET_FOCUS, canvas->GetId());
2252                 event.SetEventObject(canvas);
2253                 canvas->GetEventHandler()->ProcessEvent(event);
2254             }
2255             break;
2256         }
2257     case FocusOut:
2258         {
2259             if (local_event.xfocus.detail != NotifyPointer)
2260             {
2261                 wxFocusEvent event(wxEVT_KILL_FOCUS, canvas->GetId());
2262                 event.SetEventObject(canvas);
2263                 canvas->GetEventHandler()->ProcessEvent(event);
2264             }
2265             break;
2266         }
2267     default:
2268         break;
2269     }
2270 }
2271
2272 static void wxPanelItemEventHandler(Widget    wid,
2273                                     XtPointer WXUNUSED(client_data),
2274                                     XEvent*   event,
2275                                     Boolean  *continueToDispatch)
2276 {
2277     // Widget can be a label or the actual widget.
2278
2279     wxWindow *window = wxGetWindowFromTable(wid);
2280     if (window)
2281     {
2282         wxMouseEvent wxevent(0);
2283         if (wxTranslateMouseEvent(wxevent, window, wid, event))
2284         {
2285             window->GetEventHandler()->ProcessEvent(wxevent);
2286         }
2287     }
2288
2289     // TODO: probably the key to allowing default behaviour to happen. Say we
2290     // set a m_doDefault flag to FALSE at the start of this function. Then in
2291     // e.g. wxWindow::OnMouseEvent we can call Default() which sets this flag to
2292     // TRUE, indicating that default processing can happen. Thus, behaviour can
2293     // appear to be overridden just by adding an event handler and not calling
2294     // wxWindow::OnWhatever. ALSO, maybe we can use this instead of the current
2295     // way of handling drawing area events, to simplify things.
2296     *continueToDispatch = True;
2297 }
2298
2299 static void wxScrollBarCallback(Widget scrollbar,
2300                                 XtPointer clientData,
2301                                 XmScrollBarCallbackStruct *cbs)
2302 {
2303     wxWindow *win = wxGetWindowFromTable(scrollbar);
2304     int orientation = (int) clientData;
2305
2306     wxEventType eventType = wxEVT_NULL;
2307     switch (cbs->reason)
2308     {
2309     case XmCR_INCREMENT:
2310         {
2311             eventType = wxEVT_SCROLLWIN_LINEDOWN;
2312             break;
2313         }
2314     case XmCR_DECREMENT:
2315         {
2316             eventType = wxEVT_SCROLLWIN_LINEUP;
2317             break;
2318         }
2319     case XmCR_DRAG:
2320         {
2321             eventType = wxEVT_SCROLLWIN_THUMBTRACK;
2322             break;
2323         }
2324     case XmCR_VALUE_CHANGED:
2325         {
2326             eventType = wxEVT_SCROLLWIN_THUMBRELEASE;
2327             break;
2328         }
2329     case XmCR_PAGE_INCREMENT:
2330         {
2331             eventType = wxEVT_SCROLLWIN_PAGEDOWN;
2332             break;
2333         }
2334     case XmCR_PAGE_DECREMENT:
2335         {
2336             eventType = wxEVT_SCROLLWIN_PAGEUP;
2337             break;
2338         }
2339     case XmCR_TO_TOP:
2340         {
2341             eventType = wxEVT_SCROLLWIN_TOP;
2342             break;
2343         }
2344     case XmCR_TO_BOTTOM:
2345         {
2346             eventType = wxEVT_SCROLLWIN_BOTTOM;
2347             break;
2348         }
2349     default:
2350         {
2351             // Should never get here
2352             wxFAIL_MSG("Unknown scroll event.");
2353             break;
2354         }
2355     }
2356
2357     wxScrollWinEvent event(eventType,
2358                            cbs->value,
2359                            ((orientation == XmHORIZONTAL) ?
2360                             wxHORIZONTAL : wxVERTICAL));
2361     event.SetEventObject( win );
2362     win->GetEventHandler()->ProcessEvent(event);
2363 }
2364
2365 // For repainting arbitrary windows
2366 void wxUniversalRepaintProc(Widget w, XtPointer WXUNUSED(c_data), XEvent *event, char *)
2367 {
2368     Window window;
2369     Display *display;
2370
2371     wxWindow* win = wxGetWindowFromTable(w);
2372     if (!win)
2373         return;
2374
2375     switch(event -> type)
2376     {
2377     case Expose:
2378         {
2379             window = (Window) win -> GetXWindow();
2380             display = (Display *) win -> GetXDisplay();
2381
2382             if (event -> xexpose.count == 0)
2383             {
2384                 win->DoPaint();
2385
2386                 win->ClearUpdateRects();
2387             }
2388             else
2389             {
2390                 win->AddUpdateRect(event->xexpose.x, event->xexpose.y,
2391                                    event->xexpose.width, event->xexpose.height);
2392             }
2393
2394             break;
2395         }
2396     }
2397 }
2398
2399 // ----------------------------------------------------------------------------
2400 // CanvaseXXXSize() functions
2401 // ----------------------------------------------------------------------------
2402
2403 // SetSize, but as per old wxCanvas (with drawing widget etc.)
2404 void wxWindow::CanvasSetSize (int x, int y, int w, int h, int sizeFlags)
2405 {
2406     // A bit of optimization to help sort out the flickers.
2407     int oldX, oldY, oldW, oldH;
2408     GetSize(& oldW, & oldH);
2409     GetPosition(& oldX, & oldY);
2410
2411     bool useOldPos = FALSE;
2412     bool useOldSize = FALSE;
2413
2414     if ((x == -1) && (x == -1) && ((sizeFlags & wxSIZE_ALLOW_MINUS_ONE) == 0))
2415         useOldPos = TRUE;
2416     else if (x == oldX && y == oldY)
2417         useOldPos = TRUE;
2418
2419     if ((w == -1) && (h == -1))
2420         useOldSize = TRUE;
2421     else if (w == oldW && h == oldH)
2422         useOldSize = TRUE;
2423
2424     if (!wxNoOptimize::CanOptimize())
2425     {
2426         useOldSize = FALSE; useOldPos = FALSE;
2427     }
2428
2429     if (useOldPos && useOldSize)
2430         return;
2431
2432     Widget drawingArea = (Widget) m_drawingArea;
2433     bool managed = XtIsManaged(m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow);
2434
2435     if (managed)
2436         XtUnmanageChild (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow);
2437     XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_ANY, NULL);
2438
2439     int xx = x; int yy = y;
2440     AdjustForParentClientOrigin(xx, yy, sizeFlags);
2441
2442     if (!useOldPos)
2443     {
2444         if (x > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2445         {
2446             XtVaSetValues (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow,
2447                 XmNx, xx, NULL);
2448         }
2449
2450         if (y > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2451         {
2452             XtVaSetValues (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow,
2453                 XmNy, yy, NULL);
2454         }
2455     }
2456
2457     if (!useOldSize)
2458     {
2459
2460         if (w > -1)
2461         {
2462             if (m_borderWidget)
2463             {
2464                 XtVaSetValues ((Widget) m_borderWidget, XmNwidth, w, NULL);
2465                 short thick, margin;
2466                 XtVaGetValues ((Widget) m_borderWidget,
2467                     XmNshadowThickness, &thick,
2468                     XmNmarginWidth, &margin,
2469                     NULL);
2470                 w -= 2 * (thick + margin);
2471             }
2472
2473             XtVaSetValues ((Widget) m_scrolledWindow, XmNwidth, w, NULL);
2474
2475             Dimension spacing;
2476             Widget sbar;
2477             XtVaGetValues ((Widget) m_scrolledWindow,
2478                 XmNspacing, &spacing,
2479                 XmNverticalScrollBar, &sbar,
2480                 NULL);
2481             Dimension wsbar;
2482             if (sbar)
2483                 XtVaGetValues (sbar, XmNwidth, &wsbar, NULL);
2484             else
2485                 wsbar = 0;
2486
2487             w -= (spacing + wsbar);
2488
2489 #if 0
2490             XtVaSetValues(drawingArea, XmNwidth, w, NULL);
2491 #endif // 0
2492         }
2493         if (h > -1)
2494         {
2495             if (m_borderWidget)
2496             {
2497                 XtVaSetValues ((Widget) m_borderWidget, XmNheight, h, NULL);
2498                 short thick, margin;
2499                 XtVaGetValues ((Widget) m_borderWidget,
2500                     XmNshadowThickness, &thick,
2501                     XmNmarginHeight, &margin,
2502                     NULL);
2503                 h -= 2 * (thick + margin);
2504             }
2505
2506             XtVaSetValues ((Widget) m_scrolledWindow, XmNheight, h, NULL);
2507
2508             Dimension spacing;
2509             Widget sbar;
2510             XtVaGetValues ((Widget) m_scrolledWindow,
2511                 XmNspacing, &spacing,
2512                 XmNhorizontalScrollBar, &sbar,
2513                 NULL);
2514             Dimension wsbar;
2515             if (sbar)
2516                 XtVaGetValues (sbar, XmNheight, &wsbar, NULL);
2517             else
2518                 wsbar = 0;
2519
2520             h -= (spacing + wsbar);
2521
2522 #if 0
2523             XtVaSetValues(drawingArea, XmNheight, h, NULL);
2524 #endif // 0
2525         }
2526     }
2527
2528     if (managed)
2529         XtManageChild (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow);
2530     XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_NONE, NULL);
2531
2532 #if 0
2533     int ww, hh;
2534     GetClientSize (&ww, &hh);
2535     wxSizeEvent sizeEvent(wxSize(ww, hh), GetId());
2536     sizeEvent.SetEventObject(this);
2537
2538     GetEventHandler()->ProcessEvent(sizeEvent);
2539 #endif // 0
2540 }
2541
2542 void wxWindow::CanvasSetClientSize (int w, int h)
2543 {
2544     Widget drawingArea = (Widget) m_drawingArea;
2545
2546     XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_ANY, NULL);
2547
2548     if (w > -1)
2549         XtVaSetValues(drawingArea, XmNwidth, w, NULL);
2550     if (h > -1)
2551         XtVaSetValues(drawingArea, XmNheight, h, NULL);
2552
2553 #if 0
2554     // TODO: is this necessary?
2555     allowRepainting = FALSE;
2556
2557     XSync (XtDisplay (drawingArea), FALSE);
2558     XEvent event;
2559     while (XtAppPending (wxTheApp->appContext))
2560     {
2561         XFlush (XtDisplay (drawingArea));
2562         XtAppNextEvent (wxTheApp->appContext, &event);
2563         XtDispatchEvent (&event);
2564     }
2565 #endif // 0
2566
2567     XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_NONE, NULL);
2568
2569 #if 0
2570     allowRepainting = TRUE;
2571     DoRefresh ();
2572
2573     wxSizeEvent sizeEvent(wxSize(w, h), GetId());
2574     sizeEvent.SetEventObject(this);
2575
2576     GetEventHandler()->ProcessEvent(sizeEvent);
2577 #endif // 0
2578 }
2579
2580 void wxWindow::CanvasGetClientSize (int *w, int *h) const
2581 {
2582     // Must return the same thing that was set via SetClientSize
2583     Dimension xx, yy;
2584     XtVaGetValues ((Widget) m_drawingArea, XmNwidth, &xx, XmNheight, &yy, NULL);
2585     *w = xx;
2586     *h = yy;
2587 }
2588
2589 void wxWindow::CanvasGetSize (int *w, int *h) const
2590 {
2591     Dimension xx, yy;
2592     if ((Widget) m_borderWidget)
2593         XtVaGetValues ((Widget) m_borderWidget, XmNwidth, &xx, XmNheight, &yy, NULL);
2594     else if ((Widget) m_scrolledWindow)
2595         XtVaGetValues ((Widget) m_scrolledWindow, XmNwidth, &xx, XmNheight, &yy, NULL);
2596     else
2597         XtVaGetValues ((Widget) m_drawingArea, XmNwidth, &xx, XmNheight, &yy, NULL);
2598
2599     *w = xx;
2600     *h = yy;
2601 }
2602
2603 void wxWindow::CanvasGetPosition (int *x, int *y) const
2604 {
2605     Position xx, yy;
2606     XtVaGetValues (m_borderWidget ? (Widget) m_borderWidget : (Widget) m_scrolledWindow, XmNx, &xx, XmNy, &yy, NULL);
2607
2608     // We may be faking the client origin.
2609     // So a window that's really at (0, 30) may appear
2610     // (to wxWin apps) to be at (0, 0).
2611     if (GetParent())
2612     {
2613         wxPoint pt(GetParent()->GetClientAreaOrigin());
2614         xx -= pt.x;
2615         yy -= pt.y;
2616     }
2617
2618     *x = xx;
2619     *y = yy;
2620 }
2621
2622 // ----------------------------------------------------------------------------
2623 // TranslateXXXEvent() functions
2624 // ----------------------------------------------------------------------------
2625
2626 bool wxTranslateMouseEvent(wxMouseEvent& wxevent, wxWindow *win, Widget widget, XEvent *xevent)
2627 {
2628     switch (xevent->xany.type)
2629     {
2630         case EnterNotify:  // never received here - yes ? MB
2631         case LeaveNotify:  // never received here - yes ? MB
2632         case ButtonPress:
2633         case ButtonRelease:
2634         case MotionNotify:
2635         {
2636             wxEventType eventType = wxEVT_NULL;
2637
2638             // FIXME: this is never true I think - MB
2639             //
2640             if (xevent->xany.type == LeaveNotify)
2641             {
2642                 win->SetButton1(FALSE);
2643                 win->SetButton2(FALSE);
2644                 win->SetButton3(FALSE);
2645                 return FALSE;
2646             }
2647             else if (xevent->xany.type == MotionNotify)
2648             {
2649                 eventType = wxEVT_MOTION;
2650             }
2651             else if (xevent->xany.type == ButtonPress)
2652             {
2653                 wxevent.SetTimestamp(xevent->xbutton.time);
2654                 int button = 0;
2655                 if (xevent->xbutton.button == Button1)
2656                 {
2657                     eventType = wxEVT_LEFT_DOWN;
2658                     win->SetButton1(TRUE);
2659                     button = 1;
2660                 }
2661                 else if (xevent->xbutton.button == Button2)
2662                 {
2663                     eventType = wxEVT_MIDDLE_DOWN;
2664                     win->SetButton2(TRUE);
2665                     button = 2;
2666                 }
2667                 else if (xevent->xbutton.button == Button3)
2668                 {
2669                     eventType = wxEVT_RIGHT_DOWN;
2670                     win->SetButton3(TRUE);
2671                     button = 3;
2672                 }
2673
2674                 // check for a double click
2675                 //
2676                 long dclickTime = XtGetMultiClickTime((Display*) wxGetDisplay());
2677                 long ts = wxevent.GetTimestamp();
2678
2679                 int buttonLast = win->GetLastClickedButton();
2680                 long lastTS = win->GetLastClickTime();
2681                 if ( buttonLast && buttonLast == button && (ts - lastTS) < dclickTime )
2682                 {
2683                     // I have a dclick
2684                     win->SetLastClick(0, ts);
2685                     if ( eventType == wxEVT_LEFT_DOWN )
2686                         eventType = wxEVT_LEFT_DCLICK;
2687                     else if ( eventType == wxEVT_MIDDLE_DOWN )
2688                         eventType = wxEVT_MIDDLE_DCLICK;
2689                     else if ( eventType == wxEVT_RIGHT_DOWN )
2690                         eventType = wxEVT_RIGHT_DCLICK;
2691                 }
2692                 else
2693                 {
2694                     // not fast enough or different button
2695                     win->SetLastClick(button, ts);
2696                 }
2697             }
2698             else if (xevent->xany.type == ButtonRelease)
2699             {
2700                 if (xevent->xbutton.button == Button1)
2701                 {
2702                     eventType = wxEVT_LEFT_UP;
2703                     win->SetButton1(FALSE);
2704                 }
2705                 else if (xevent->xbutton.button == Button2)
2706                 {
2707                     eventType = wxEVT_MIDDLE_UP;
2708                     win->SetButton2(FALSE);
2709                 }
2710                 else if (xevent->xbutton.button == Button3)
2711                 {
2712                     eventType = wxEVT_RIGHT_UP;
2713                     win->SetButton3(FALSE);
2714                 }
2715                 else return FALSE;
2716             }
2717             else
2718             {
2719                 return FALSE;
2720             }
2721
2722             wxevent.SetEventType(eventType);
2723
2724             Position x1, y1;
2725             XtVaGetValues(widget, XmNx, &x1, XmNy, &y1, NULL);
2726
2727             int x2, y2;
2728             win->GetPosition(&x2, &y2);
2729
2730             // The button x/y must be translated to wxWindows
2731             // window space - the widget might be a label or button,
2732             // within a form.
2733             int dx = 0;
2734             int dy = 0;
2735             if (widget != (Widget)win->GetMainWidget())
2736             {
2737                 dx = x1;
2738                 dy = y1;
2739             }
2740
2741             wxevent.m_x = xevent->xbutton.x + dx;
2742             wxevent.m_y = xevent->xbutton.y + dy;
2743
2744             wxevent.m_leftDown = ((eventType == wxEVT_LEFT_DOWN)
2745                 || (event_left_is_down (xevent)
2746                 && (eventType != wxEVT_LEFT_UP)));
2747             wxevent.m_middleDown = ((eventType == wxEVT_MIDDLE_DOWN)
2748                 || (event_middle_is_down (xevent)
2749                 && (eventType != wxEVT_MIDDLE_UP)));
2750             wxevent.m_rightDown = ((eventType == wxEVT_RIGHT_DOWN)
2751                 || (event_right_is_down (xevent)
2752                 && (eventType != wxEVT_RIGHT_UP)));
2753
2754             wxevent.m_shiftDown = xevent->xbutton.state & ShiftMask;
2755             wxevent.m_controlDown = xevent->xbutton.state & ControlMask;
2756             wxevent.m_altDown = xevent->xbutton.state & Mod3Mask;
2757             wxevent.m_metaDown = xevent->xbutton.state & Mod1Mask;
2758
2759             wxevent.SetId(win->GetId());
2760             wxevent.SetEventObject(win);
2761
2762             return TRUE;
2763         }
2764     }
2765     return FALSE;
2766 }
2767
2768 bool wxTranslateKeyEvent(wxKeyEvent& wxevent, wxWindow *win, Widget WXUNUSED(widget), XEvent *xevent)
2769 {
2770     switch (xevent->xany.type)
2771     {
2772     case KeyPress:
2773     case KeyRelease:
2774         {
2775             char buf[20];
2776
2777             KeySym keySym;
2778 #if 0
2779             XComposeStatus compose;
2780             (void) XLookupString ((XKeyEvent *) xevent, buf, 20, &keySym, &compose);
2781 #endif // 0
2782             (void) XLookupString ((XKeyEvent *) xevent, buf, 20, &keySym, NULL);
2783             int id = wxCharCodeXToWX (keySym);
2784
2785             if (xevent->xkey.state & ShiftMask)
2786                 wxevent.m_shiftDown = TRUE;
2787             if (xevent->xkey.state & ControlMask)
2788                 wxevent.m_controlDown = TRUE;
2789             if (xevent->xkey.state & Mod3Mask)
2790                 wxevent.m_altDown = TRUE;
2791             if (xevent->xkey.state & Mod1Mask)
2792                 wxevent.m_metaDown = TRUE;
2793             wxevent.SetEventObject(win);
2794             wxevent.m_keyCode = id;
2795             wxevent.SetTimestamp(xevent->xkey.time);
2796
2797             wxevent.m_x = xevent->xbutton.x;
2798             wxevent.m_y = xevent->xbutton.y;
2799
2800             if (id > -1)
2801                 return TRUE;
2802             else
2803                 return FALSE;
2804             break;
2805         }
2806     default:
2807         break;
2808     }
2809     return FALSE;
2810 }
2811
2812 // ----------------------------------------------------------------------------
2813 // Colour stuff
2814 // ----------------------------------------------------------------------------
2815
2816 #define YAllocColor XAllocColor
2817 XColor g_itemColors[5];
2818 int wxComputeColours (Display *display, wxColour * back, wxColour * fore)
2819 {
2820     int result;
2821     static XmColorProc colorProc;
2822
2823     result = wxNO_COLORS;
2824
2825     if (back)
2826     {
2827         g_itemColors[0].red = (((long) back->Red ()) << 8);
2828         g_itemColors[0].green = (((long) back->Green ()) << 8);
2829         g_itemColors[0].blue = (((long) back->Blue ()) << 8);
2830         g_itemColors[0].flags = DoRed | DoGreen | DoBlue;
2831         if (colorProc == (XmColorProc) NULL)
2832         {
2833             // Get a ptr to the actual function
2834             colorProc = XmSetColorCalculation ((XmColorProc) NULL);
2835             // And set it back to motif.
2836             XmSetColorCalculation (colorProc);
2837         }
2838         (*colorProc) (&g_itemColors[wxBACK_INDEX],
2839             &g_itemColors[wxFORE_INDEX],
2840             &g_itemColors[wxSELE_INDEX],
2841             &g_itemColors[wxTOPS_INDEX],
2842             &g_itemColors[wxBOTS_INDEX]);
2843         result = wxBACK_COLORS;
2844     }
2845     if (fore)
2846     {
2847         g_itemColors[wxFORE_INDEX].red = (((long) fore->Red ()) << 8);
2848         g_itemColors[wxFORE_INDEX].green = (((long) fore->Green ()) << 8);
2849         g_itemColors[wxFORE_INDEX].blue = (((long) fore->Blue ()) << 8);
2850         g_itemColors[wxFORE_INDEX].flags = DoRed | DoGreen | DoBlue;
2851         if (result == wxNO_COLORS)
2852             result = wxFORE_COLORS;
2853     }
2854
2855     Display *dpy = display;
2856     Colormap cmap = (Colormap) wxTheApp->GetMainColormap((WXDisplay*) dpy);
2857
2858     if (back)
2859     {
2860         /* 5 Colours to allocate */
2861         for (int i = 0; i < 5; i++)
2862             if (!YAllocColor (dpy, cmap, &g_itemColors[i]))
2863                 result = wxNO_COLORS;
2864     }
2865     else if (fore)
2866     {
2867         /* Only 1 colour to allocate */
2868         if (!YAllocColor (dpy, cmap, &g_itemColors[wxFORE_INDEX]))
2869             result = wxNO_COLORS;
2870     }
2871
2872     return (result);
2873
2874 }
2875
2876 // Changes the foreground and background colours to be derived from the current
2877 // background colour. To change the foreground colour, you must call
2878 // SetForegroundColour explicitly.
2879 void wxWindow::ChangeBackgroundColour()
2880 {
2881     WXWidget mainWidget = GetMainWidget();
2882     if ( mainWidget )
2883         DoChangeBackgroundColour(mainWidget, m_backgroundColour);
2884
2885     // This not necessary
2886 #if 0
2887
2888     if (m_scrolledWindow && (GetMainWidget() != m_scrolledWindow))
2889     {
2890         DoChangeBackgroundColour(m_scrolledWindow, m_backgroundColour);
2891         // Have to set the scrollbar colours back since
2892         // the scrolled window seemed to change them
2893         wxColour backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
2894
2895         if (m_hScrollBar)
2896             DoChangeBackgroundColour(m_hScrollBar, backgroundColour);
2897         if (m_vScrollBar)
2898             DoChangeBackgroundColour(m_vScrollBar, backgroundColour);
2899     }
2900 #endif
2901 }
2902
2903 void wxWindow::ChangeForegroundColour()
2904 {
2905     WXWidget mainWidget = GetMainWidget();
2906     if ( mainWidget )
2907         DoChangeForegroundColour(mainWidget, m_foregroundColour);
2908     if ( m_scrolledWindow && mainWidget != m_scrolledWindow )
2909         DoChangeForegroundColour(m_scrolledWindow, m_foregroundColour);
2910 }
2911
2912 // Change a widget's foreground and background colours.
2913 void wxWindow::DoChangeForegroundColour(WXWidget widget, wxColour& foregroundColour)
2914 {
2915     // When should we specify the foreground, if it's calculated
2916     // by wxComputeColours?
2917     // Solution: say we start with the default (computed) foreground colour.
2918     // If we call SetForegroundColour explicitly for a control or window,
2919     // then the foreground is changed.
2920     // Therefore SetBackgroundColour computes the foreground colour, and
2921     // SetForegroundColour changes the foreground colour. The ordering is
2922     // important.
2923
2924     Widget w = (Widget)widget;
2925     XtVaSetValues(
2926                   w,
2927                   XmNforeground, foregroundColour.AllocColour(XtDisplay(w)),
2928                   NULL
2929                  );
2930 }
2931
2932 void wxWindow::DoChangeBackgroundColour(WXWidget widget, wxColour& backgroundColour, bool changeArmColour)
2933 {
2934     wxComputeColours (XtDisplay((Widget) widget), & backgroundColour,
2935         (wxColour*) NULL);
2936
2937     XtVaSetValues ((Widget) widget,
2938         XmNbackground, g_itemColors[wxBACK_INDEX].pixel,
2939         XmNtopShadowColor, g_itemColors[wxTOPS_INDEX].pixel,
2940         XmNbottomShadowColor, g_itemColors[wxBOTS_INDEX].pixel,
2941         XmNforeground, g_itemColors[wxFORE_INDEX].pixel,
2942         NULL);
2943
2944     if (changeArmColour)
2945         XtVaSetValues ((Widget) widget,
2946         XmNarmColor, g_itemColors[wxSELE_INDEX].pixel,
2947         NULL);
2948 }
2949
2950 bool wxWindow::SetBackgroundColour(const wxColour& col)
2951 {
2952     if ( !wxWindowBase::SetBackgroundColour(col) )
2953         return FALSE;
2954
2955     ChangeBackgroundColour();
2956
2957     return TRUE;
2958 }
2959
2960 bool wxWindow::SetForegroundColour(const wxColour& col)
2961 {
2962     if ( !wxWindowBase::SetForegroundColour(col) )
2963         return FALSE;
2964
2965     ChangeForegroundColour();
2966
2967     return TRUE;
2968 }
2969
2970 void wxWindow::ChangeFont(bool keepOriginalSize)
2971 {
2972     // Note that this causes the widget to be resized back
2973     // to its original size! We therefore have to set the size
2974     // back again. TODO: a better way in Motif?
2975     Widget w = (Widget) GetLabelWidget(); // Usually the main widget
2976     if (w && m_font.Ok())
2977     {
2978         int width, height, width1, height1;
2979         GetSize(& width, & height);
2980
2981         // lesstif 0.87 hangs here
2982 #ifndef LESSTIF_VERSION
2983         XtVaSetValues (w,
2984             XmNfontList, (XmFontList) m_font.GetFontList(1.0, XtDisplay(w)),
2985             NULL);
2986 #endif
2987
2988         GetSize(& width1, & height1);
2989         if (keepOriginalSize && (width != width1 || height != height1))
2990         {
2991             SetSize(-1, -1, width, height);
2992         }
2993     }
2994 }
2995
2996 // ----------------------------------------------------------------------------
2997 // global functions
2998 // ----------------------------------------------------------------------------
2999
3000 wxWindow *wxGetActiveWindow()
3001 {
3002     // TODO
3003     wxFAIL_MSG("Not implemented");
3004     return NULL;
3005 }
3006
3007 /* static */
3008 wxWindow *wxWindowBase::GetCapture()
3009 {
3010     return (wxWindow *)g_captureWindow;
3011 }
3012
3013
3014 // Find the wxWindow at the current mouse position, returning the mouse
3015 // position.
3016 wxWindow* wxFindWindowAtPointer(wxPoint& pt)
3017 {
3018     return wxFindWindowAtPoint(wxGetMousePosition());
3019 }
3020
3021 // Get the current mouse position.
3022 wxPoint wxGetMousePosition()
3023 {
3024     Display *display = (Display*) wxGetDisplay();
3025     Window rootWindow = RootWindowOfScreen (DefaultScreenOfDisplay(display));
3026     Window rootReturn, childReturn;
3027     int rootX, rootY, winX, winY;
3028     unsigned int maskReturn;
3029
3030     XQueryPointer (display,
3031                    rootWindow,
3032                    &rootReturn,
3033                    &childReturn,
3034                    &rootX, &rootY, &winX, &winY, &maskReturn);
3035     return wxPoint(rootX, rootY);
3036 }
3037
3038
3039 // ----------------------------------------------------------------------------
3040 // wxNoOptimize: switch off size optimization
3041 // ----------------------------------------------------------------------------
3042
3043 int wxNoOptimize::ms_count = 0;
3044