src/motif/dialog.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        dialog.cpp
   3 // Purpose:     wxDialog class
   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 #ifdef __GNUG__
  13 #pragma implementation "dialog.h"
  14 #endif
  15
  16 #include "wx/dialog.h"
  17 #include "wx/utils.h"
  18 #include "wx/frame.h"
  19 #include "wx/app.h"
  20 #include "wx/settings.h"
  21
  22 #include <Xm/Xm.h>
  23
  24 #include <X11/Shell.h>
  25 #if XmVersion >= 1002
  26 #include <Xm/XmAll.h>
  27 #endif
  28 #include <Xm/MwmUtil.h>
  29 #include <Xm/Label.h>
  30 #include <Xm/BulletinB.h>
  31 #include <Xm/Frame.h>
  32 #include <Xm/Text.h>
  33 #include <Xm/DialogS.h>
  34 #include <Xm/FileSB.h>
  35 #include <Xm/RowColumn.h>
  36 #include <Xm/LabelG.h>
  37 #include <Xm/AtomMgr.h>
  38 #if   XmVersion > 1000
  39 #include <Xm/Protocols.h>
  40 #endif
  41
  42 #include "wx/motif/private.h"
  43
  44 static void wxCloseDialogCallback(Widget widget, XtPointer client_data, XmAnyCallbackStruct *cbs);
  45 static void wxDialogBoxRepaintProc(Widget w, XtPointer c_data, XEvent *event, char *);
  46 static void wxDialogBoxEventHandler (Widget    wid,
  47                               XtPointer client_data,
  48                               XEvent*   event,
  49                               Boolean *continueToDispatch);
  50
  51 static void wxUnmapBulletinBoard(Widget dialog, wxDialog *client,XtPointer call);
  52
  53 // A stack of modal_showing flags, since we can't rely
  54 // on accessing wxDialog::m_modalShowing within
  55 // wxDialog::Show in case a callback has deleted the wxDialog.
  56 static wxList wxModalShowingStack;
  57
  58 // Lists to keep track of windows, so we can disable/enable them
  59 // for modal dialogs
  60 wxList wxModalDialogs;
  61 wxList wxModelessWindows;  // Frames and modeless dialogs
  62 extern wxList wxPendingDelete;
  63
  64 #define wxUSE_INVISIBLE_RESIZE 1
  65
  66 #if !USE_SHARED_LIBRARY
  67 IMPLEMENT_DYNAMIC_CLASS(wxDialog, wxPanel)
  68
  69 BEGIN_EVENT_TABLE(wxDialog, wxPanel)
  70   EVT_BUTTON(wxID_OK, wxDialog::OnOK)
  71   EVT_BUTTON(wxID_APPLY, wxDialog::OnApply)
  72   EVT_BUTTON(wxID_CANCEL, wxDialog::OnCancel)
  73   EVT_CHAR_HOOK(wxDialog::OnCharHook)
  74   EVT_SYS_COLOUR_CHANGED(wxDialog::OnSysColourChanged)
  75   EVT_CLOSE(wxDialog::OnCloseWindow)
  76 END_EVENT_TABLE()
  77
  78 #endif
  79
  80 wxDialog::wxDialog()
  81 {
  82     m_modalShowing = FALSE;
  83     SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
  84 }
  85
  86 bool wxDialog::Create(wxWindow *parent, wxWindowID id,
  87            const wxString& title,
  88            const wxPoint& pos,
  89            const wxSize& size,
  90            long style,
  91            const wxString& name)
  92 {
  93     m_windowStyle = style;
  94     m_modalShowing = FALSE;
  95     m_dialogTitle = title;
  96
  97     SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
  98     SetName(name);
  99
 100     if (!parent)
 101         wxTopLevelWindows.Append(this);
 102
 103     if (parent) parent->AddChild(this);
 104
 105     if ( id == -1 )
 106         m_windowId = (int)NewControlId();
 107     else
 108         m_windowId = id;
 109
 110     Widget parentWidget = (Widget) 0;
 111     if (parent)
 112         parentWidget = (Widget) parent->GetTopWidget();
 113     if (!parent)
 114         parentWidget = (Widget) wxTheApp->GetTopLevelWidget();
 115
 116     wxASSERT_MSG( (parentWidget != (Widget) 0), "Could not find a suitable parent shell for dialog." );
 117
 118     Arg args[1];
 119     XtSetArg (args[0], XmNdefaultPosition, False);
 120     Widget dialogShell = XmCreateBulletinBoardDialog(parentWidget, (char*) (const char*) name, args, 1);
 121     m_mainWidget = (WXWidget) dialogShell;
 122
 123     // We don't want margins, since there is enough elsewhere.
 124     XtVaSetValues(dialogShell,
 125           XmNmarginHeight,   0,
 126           XmNmarginWidth,    0,
 127           XmNresizePolicy, XmRESIZE_NONE,
 128           NULL) ;
 129
 130     Widget shell = XtParent(dialogShell) ;
 131     if (!title.IsNull())
 132     {
 133         XmString str = XmStringCreateSimple((char*) (const char*)title);
 134         XtVaSetValues(dialogShell,
 135                       XmNdialogTitle, str,
 136                       NULL);
 137         XmStringFree(str);
 138     }
 139
 140     wxAddWindowToTable(dialogShell, this);
 141
 142     // Intercept CLOSE messages from the window manager
 143     Atom WM_DELETE_WINDOW = XmInternAtom(XtDisplay(shell), "WM_DELETE_WINDOW", False);
 144
 145     /* MATTHEW: [8] Remove and add WM_DELETE_WINDOW so ours is only handler */
 146     /* Why do we have to do this for wxDialog, but not wxFrame? */
 147     XmRemoveWMProtocols(shell, &WM_DELETE_WINDOW, 1);
 148     XmAddWMProtocols(shell, &WM_DELETE_WINDOW, 1);
 149     XmActivateWMProtocol(shell, WM_DELETE_WINDOW);
 150
 151     // Modified Steve Hammes for Motif 2.0
 152 #if (XmREVISION > 1 || XmVERSION > 1)
 153     XmAddWMProtocolCallback(shell, WM_DELETE_WINDOW, (XtCallbackProc) wxCloseDialogCallback, (XtPointer)this);
 154 #elif XmREVISION == 1
 155     XmAddWMProtocolCallback(shell, WM_DELETE_WINDOW, (XtCallbackProc) wxCloseDialogCallback, (caddr_t)this);
 156 #else
 157     XmAddWMProtocolCallback(shell, WM_DELETE_WINDOW, (void (*)())wxCloseDialogCallback, (caddr_t)this);
 158 #endif
 159
 160     XtTranslations ptr ;
 161     XtOverrideTranslations(dialogShell,
 162                 ptr = XtParseTranslationTable("<Configure>: resize()"));
 163     XtFree((char *)ptr);
 164
 165     // Can't remember what this was about... but I think it's necessary.
 166
 167     if (USE_INVISIBLE_RESIZE)
 168     {
 169       if (pos.x > -1)
 170         XtVaSetValues(dialogShell, XmNx, pos.x,
 171                     NULL);
 172       if (pos.y > -1)
 173         XtVaSetValues(dialogShell, XmNy, pos.y,
 174                     NULL);
 175
 176       if (size.x > -1)
 177         XtVaSetValues(dialogShell, XmNwidth, size.x, NULL);
 178       if (size.y > -1)
 179         XtVaSetValues(dialogShell, XmNheight, size.y, NULL);
 180     }
 181
 182     // This patch come from Torsten Liermann lier@lier1.muc.de
 183     if (XmIsMotifWMRunning(shell))
 184     {
 185         int decor = 0 ;
 186         if (m_windowStyle & wxRESIZE_BORDER)
 187           decor |= MWM_DECOR_RESIZEH ;
 188         if (m_windowStyle & wxSYSTEM_MENU)
 189           decor |= MWM_DECOR_MENU;
 190         if ((m_windowStyle & wxCAPTION) ||
 191             (m_windowStyle & wxTINY_CAPTION_HORIZ) ||
 192             (m_windowStyle & wxTINY_CAPTION_VERT))
 193           decor |= MWM_DECOR_TITLE;
 194         if (m_windowStyle & wxTHICK_FRAME)
 195           decor |= MWM_DECOR_BORDER;
 196         if (m_windowStyle & wxMINIMIZE_BOX)
 197           decor |= MWM_DECOR_MINIMIZE;
 198         if (m_windowStyle & wxMAXIMIZE_BOX)
 199           decor |= MWM_DECOR_MAXIMIZE;
 200
 201         XtVaSetValues(shell,XmNmwmDecorations,decor,NULL) ;
 202     }
 203     // This allows non-Motif window managers to support at least the
 204     // no-decorations case.
 205     else
 206     {
 207       if ((m_windowStyle & wxCAPTION) != wxCAPTION)
 208           XtVaSetValues((Widget) shell,XmNoverrideRedirect,TRUE,NULL);
 209     }
 210
 211     XtRealizeWidget(dialogShell);
 212
 213     XtAddCallback(dialogShell,XmNunmapCallback,
 214                  (XtCallbackProc)wxUnmapBulletinBoard,this) ;
 215
 216     // Positioning of the dialog doesn't work properly unless the dialog
 217     // is managed, so we manage without mapping to the screen.
 218     // To show, we map the shell (actually it's parent).
 219     if (!USE_INVISIBLE_RESIZE)
 220         XtVaSetValues(shell, XmNmappedWhenManaged, FALSE, NULL);
 221
 222     if (!USE_INVISIBLE_RESIZE)
 223     {
 224         XtManageChild(dialogShell);
 225         SetSize(pos.x, pos.y, size.x, size.y);
 226     }
 227     XtAddEventHandler(dialogShell,ExposureMask,FALSE,
 228                           wxDialogBoxRepaintProc, (XtPointer) this);
 229
 230     XtAddEventHandler(dialogShell,
 231        ButtonPressMask | ButtonReleaseMask | PointerMotionMask | KeyPressMask,
 232        FALSE,
 233        wxDialogBoxEventHandler,
 234        (XtPointer)this);
 235
 236     return TRUE;
 237 }
 238
 239 void wxDialog::SetModal(bool flag)
 240 {
 241     if ( flag )
 242         m_windowStyle |= wxDIALOG_MODAL ;
 243     else
 244         if ( m_windowStyle & wxDIALOG_MODAL )
 245           m_windowStyle -= wxDIALOG_MODAL ;
 246
 247   wxModelessWindows.DeleteObject(this);
 248   if (!flag)
 249     wxModelessWindows.Append(this);
 250 }
 251
 252 wxDialog::~wxDialog()
 253 {
 254     m_modalShowing = FALSE;
 255     if (!USE_INVISIBLE_RESIZE && m_mainWidget)
 256     {
 257       XtUnmapWidget((Widget) m_mainWidget);
 258     }
 259
 260     wxTopLevelWindows.DeleteObject(this);
 261
 262     if ( (GetWindowStyleFlag() & wxDIALOG_MODAL) != wxDIALOG_MODAL )
 263       wxModelessWindows.DeleteObject(this);
 264
 265     // If this is the last top-level window, exit.
 266     if (wxTheApp && (wxTopLevelWindows.Number() == 0))
 267     {
 268       wxTheApp->SetTopWindow(NULL);
 269
 270       if (wxTheApp->GetExitOnFrameDelete())
 271       {
 272          wxTheApp->ExitMainLoop();
 273       }
 274     }
 275
 276     // This event-flushing code used to be in wxWindow::PostDestroyChildren (wx_dialog.cpp)
 277     // but I think this should work, if we destroy the children first.
 278     // Note that this might need to be done for wxFrame also.
 279     DestroyChildren();
 280
 281     // Now process all events, because otherwise
 282     // this might remain on the screen.
 283     XSync(XtDisplay(XtParent((Widget) m_mainWidget)), FALSE);
 284     XEvent event;
 285     while (XtAppPending((XtAppContext) wxTheApp->GetAppContext())) {
 286       XFlush(XtDisplay((Widget) XtParent((Widget) m_mainWidget)));
 287       XtAppNextEvent((XtAppContext) wxTheApp->GetAppContext(), &event);
 288       XtDispatchEvent(&event);
 289     }
 290 }
 291
 292 // By default, pressing escape cancels the dialog
 293 void wxDialog::OnCharHook(wxKeyEvent& event)
 294 {
 295   if (event.m_keyCode == WXK_ESCAPE)
 296   {
 297                 // Behaviour changed in 2.0: we'll send a Cancel message
 298                 // to the dialog instead of Close.
 299                 wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
 300                 cancelEvent.SetEventObject( this );
 301                 GetEventHandler()->ProcessEvent(cancelEvent);
 302
 303                 return;
 304   }
 305   // We didn't process this event.
 306   event.Skip();
 307 }
 308
 309 void wxDialog::Iconize(bool WXUNUSED(iconize))
 310 {
 311   // Can't iconize a dialog in Motif, apparently
 312   // TODO: try using the parent of m_mainShell.
 313 //  XtVaSetValues((Widget) m_mainWidget, XmNiconic, iconize, NULL);
 314 }
 315
 316 bool wxDialog::IsIconized() const
 317 {
 318   /*
 319     Boolean iconic;
 320     XtVaGetValues((Widget) m_mainWidget, XmNiconic, &iconic, NULL);
 321
 322     return iconic;
 323    */
 324     return FALSE;
 325 }
 326
 327 void wxDialog::SetSize(int x, int y, int width, int height, int sizeFlags)
 328 {
 329     XtVaSetValues((Widget) m_mainWidget, XmNresizePolicy, XmRESIZE_ANY, NULL);
 330     wxWindow::SetSize(x, y, width, height, sizeFlags);
 331     XtVaSetValues((Widget) m_mainWidget, XmNresizePolicy, XmRESIZE_NONE, NULL);
 332 }
 333
 334 void wxDialog::SetClientSize(int width, int height)
 335 {
 336     SetSize(-1, -1, width, height);
 337 }
 338
 339
 340 void wxDialog::SetTitle(const wxString& title)
 341 {
 342     m_dialogTitle = title;
 343     if (!title.IsNull())
 344     {
 345         XmString str = XmStringCreateSimple((char*) (const char*) title);
 346         XtVaSetValues((Widget) m_mainWidget,
 347                   XmNtitle, (char*) (const char*) title,
 348                   XmNdialogTitle, str, // Roberto Cocchi
 349                   XmNiconName, (char*) (const char*) title,
 350                   NULL);
 351         XmStringFree(str);
 352     }
 353 }
 354
 355 wxString wxDialog::GetTitle() const
 356 {
 357   return m_dialogTitle;
 358 }
 359
 360 void wxDialog::Centre(int direction)
 361 {
 362   int x_offset,y_offset ;
 363   int display_width, display_height;
 364   int  width, height, x, y;
 365   wxWindow *parent = GetParent();
 366   if ((direction & wxCENTER_FRAME) && parent)
 367   {
 368       parent->GetPosition(&x_offset,&y_offset) ;
 369       parent->GetSize(&display_width,&display_height) ;
 370   }
 371   else
 372   {
 373     wxDisplaySize(&display_width, &display_height);
 374     x_offset = 0 ;
 375     y_offset = 0 ;
 376   }
 377
 378   GetSize(&width, &height);
 379   GetPosition(&x, &y);
 380
 381   if (direction & wxHORIZONTAL)
 382     x = (int)((display_width - width)/2);
 383   if (direction & wxVERTICAL)
 384     y = (int)((display_height - height)/2);
 385
 386   SetSize(x+x_offset, y+y_offset, width, height);
 387 }
 388
 389 void wxDialog::Raise()
 390 {
 391     Window parent_window = XtWindow((Widget) m_mainWidget),
 392            next_parent   = XtWindow((Widget) m_mainWidget),
 393            root          = RootWindowOfScreen(XtScreen((Widget) m_mainWidget));
 394     // search for the parent that is child of ROOT, because the WM may
 395     // reparent twice and notify only the next parent (like FVWM)
 396     while (next_parent != root) {
 397         Window *theChildren; unsigned int n;
 398         parent_window = next_parent;
 399         XQueryTree(XtDisplay((Widget) m_mainWidget), parent_window, &root,
 400                    &next_parent, &theChildren, &n);
 401         XFree(theChildren); // not needed
 402     }
 403     XRaiseWindow(XtDisplay((Widget) m_mainWidget), parent_window);
 404 }
 405
 406 void wxDialog::Lower()
 407 {
 408     Window parent_window = XtWindow((Widget) m_mainWidget),
 409            next_parent   = XtWindow((Widget) m_mainWidget),
 410            root          = RootWindowOfScreen(XtScreen((Widget) m_mainWidget));
 411     // search for the parent that is child of ROOT, because the WM may
 412     // reparent twice and notify only the next parent (like FVWM)
 413     while (next_parent != root) {
 414         Window *theChildren; unsigned int n;
 415         parent_window = next_parent;
 416         XQueryTree(XtDisplay((Widget) m_mainWidget), parent_window, &root,
 417                    &next_parent, &theChildren, &n);
 418         XFree(theChildren); // not needed
 419     }
 420     XLowerWindow(XtDisplay((Widget) m_mainWidget), parent_window);
 421 }
 422
 423 bool wxDialog::Show(bool show)
 424 {
 425     m_isShown = show;
 426
 427     if (show)
 428     {
 429         if (!USE_INVISIBLE_RESIZE)
 430           XtMapWidget(XtParent((Widget) m_mainWidget));
 431         else
 432           XtManageChild((Widget) m_mainWidget) ;
 433
 434         XRaiseWindow(XtDisplay((Widget) m_mainWidget), XtWindow((Widget) m_mainWidget));
 435
 436     }
 437     else
 438     {
 439         if (!USE_INVISIBLE_RESIZE)
 440             XtUnmapWidget(XtParent((Widget) m_mainWidget));
 441         else
 442             XtUnmanageChild((Widget) m_mainWidget) ;
 443
 444         XFlush(XtDisplay((Widget) wxTheApp->GetTopLevelWidget()));
 445         XSync(XtDisplay((Widget) wxTheApp->GetTopLevelWidget()), FALSE);
 446     }
 447
 448     return TRUE;
 449 }
 450
 451 // Shows a dialog modally, returning a return code
 452 int wxDialog::ShowModal()
 453 {
 454     m_windowStyle |= wxDIALOG_MODAL;
 455
 456     Show(TRUE);
 457
 458     if (m_modalShowing)
 459         return 0;
 460
 461     wxModalShowingStack.Insert((wxObject *)TRUE);
 462
 463     m_modalShowing = TRUE;
 464     XtAddGrab((Widget) m_mainWidget, TRUE, FALSE);
 465     XEvent event;
 466
 467     // Loop until we signal that the dialog should be closed
 468     while ((wxModalShowingStack.Number() > 0) && (bool)wxModalShowingStack.First()->Data())
 469     {
 470         XtAppProcessEvent((XtAppContext) wxTheApp->GetAppContext(), XtIMAll);
 471     }
 472
 473     // Remove modal dialog flag from stack
 474     wxNode *node = wxModalShowingStack.First();
 475     if (node)
 476       delete node;
 477
 478     // Now process all events in case they get sent to a destroyed dialog
 479     XSync(XtDisplay((Widget) wxTheApp->GetTopLevelWidget()), FALSE);
 480     while (XtAppPending((XtAppContext) wxTheApp->GetAppContext()))
 481     {
 482         XFlush(XtDisplay((Widget) wxTheApp->GetTopLevelWidget()));
 483         XtAppNextEvent((XtAppContext) wxTheApp->GetAppContext(), &event);
 484         XtDispatchEvent(&event);
 485     }
 486
 487     // TODO: is it safe to call this, if the dialog may have been deleted
 488     // by now? Probably only if we're using delayed deletion of dialogs.
 489     return GetReturnCode();
 490 }
 491
 492 void wxDialog::EndModal(int retCode)
 493 {
 494     if (!m_modalShowing)
 495         return;
 496
 497     SetReturnCode(retCode);
 498
 499     XtRemoveGrab((Widget) m_mainWidget);
 500
 501     Show(FALSE);
 502
 503     m_modalShowing = FALSE;
 504
 505     wxNode *node = wxModalShowingStack.First();
 506     if (node)
 507       node->SetData((wxObject *)FALSE);
 508 }
 509
 510 // Standard buttons
 511 void wxDialog::OnOK(wxCommandEvent& event)
 512 {
 513         if ( Validate() && TransferDataFromWindow() )
 514         {
 515         if ( IsModal() )
 516             EndModal(wxID_OK);
 517         else
 518         {
 519                     SetReturnCode(wxID_OK);
 520                     this->Show(FALSE);
 521         }
 522         }
 523 }
 524
 525 void wxDialog::OnApply(wxCommandEvent& event)
 526 {
 527         if (Validate())
 528                 TransferDataFromWindow();
 529         // TODO probably need to disable the Apply button until things change again
 530 }
 531
 532 void wxDialog::OnCancel(wxCommandEvent& event)
 533 {
 534     if ( IsModal() )
 535         EndModal(wxID_CANCEL);
 536     else
 537     {
 538         SetReturnCode(wxID_CANCEL);
 539                 this->Show(FALSE);
 540     }
 541 }
 542
 543 bool wxDialog::OnClose()
 544 {
 545         // Behaviour changed in 2.0: we'll send a Cancel message by default,
 546     // which may close the dialog.
 547     // Check for looping if the Cancel event handler calls Close()
 548
 549     static wxList closing;
 550
 551     if ( closing.Member(this) )
 552         return FALSE;
 553
 554     closing.Append(this);
 555
 556         wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
 557         cancelEvent.SetEventObject( this );
 558         GetEventHandler()->ProcessEvent(cancelEvent);
 559
 560     closing.DeleteObject(this);
 561
 562         return FALSE;
 563 }
 564
 565 void wxDialog::OnCloseWindow(wxCloseEvent& event)
 566 {
 567     // Compatibility
 568     if ( GetEventHandler()->OnClose() || event.GetForce())
 569     {
 570         this->Destroy();
 571     }
 572 }
 573
 574 // Destroy the window (delayed, if a managed window)
 575 bool wxDialog::Destroy()
 576 {
 577   if (!wxPendingDelete.Member(this))
 578     wxPendingDelete.Append(this);
 579   return TRUE;
 580 }
 581
 582 void wxDialog::OnSysColourChanged(wxSysColourChangedEvent& event)
 583 {
 584   SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
 585   Refresh();
 586 }
 587
 588 void wxDialog::Fit()
 589 {
 590 }
 591
 592 // Handle a close event from the window manager
 593 static void wxCloseDialogCallback(Widget widget, XtPointer client_data, XmAnyCallbackStruct *cbs)
 594 {
 595   wxDialog *dialog = (wxDialog *)client_data;
 596   wxCloseEvent closeEvent(wxEVT_CLOSE_WINDOW, dialog->GetId());
 597   closeEvent.SetEventObject(dialog);
 598
 599   // May delete the dialog (with delayed deletion)
 600   dialog->GetEventHandler()->ProcessEvent(closeEvent);
 601 }
 602
 603 // TODO: Preferably, we should have a universal repaint proc.
 604 // Meanwhile, use a special one for dialogs.
 605 static void wxDialogBoxRepaintProc(Widget w, XtPointer c_data, XEvent *event, char *)
 606    {
 607      Window window;
 608      static XRectangle *xrect;
 609      Display *display;
 610      GC gc;
 611      int llp = 0;
 612      static int last_count = 0;
 613      static int draw_count = 0;
 614
 615      wxWindow* win = (wxWindow *)wxWidgetHashTable->Get((long)w);
 616      if (!win)
 617        return;
 618
 619      switch(event -> type)
 620         {
 621           case Expose :
 622                window = (Window) win -> GetXWindow();
 623                display = (Display *) win -> GetXDisplay();
 624                /* TODO
 625                gc = (GC) panel -> GetDC() -> gc;
 626
 627                llp = event -> xexpose.count;
 628
 629                if ((last_count == 0) && (llp == 0))
 630                   {
 631                     xrect = new XRectangle[1];
 632                     xrect[0].x = event -> xexpose.x;
 633                     xrect[0].y = event -> xexpose.y;
 634                     xrect[0].width = event -> xexpose.width;
 635                     xrect[0].height = event -> xexpose.height;
 636
 637                     XSetClipRectangles(display,gc,0,0,xrect,1,Unsorted);
 638 //                    panel->DoPaint(xrect, 1);
 639                     panel->GetEventHandler()->OnPaint();
 640
 641                     delete xrect;
 642                   }
 643
 644                if ((last_count == 0) && (llp != 0))
 645                   {
 646                     xrect = new XRectangle[llp + 1];
 647                     draw_count = llp + 1;
 648
 649                     xrect[draw_count - llp - 1].x = event -> xexpose.x;
 650                     xrect[draw_count - llp - 1].y = event -> xexpose.y;
 651                     xrect[draw_count - llp - 1].width = event -> xexpose.width;
 652                     xrect[draw_count - llp - 1].height = event -> xexpose.height;
 653                   }
 654
 655                if ((last_count != 0) && (llp != 0))
 656                   {
 657                     xrect[draw_count - llp - 1].x = event -> xexpose.x;
 658                     xrect[draw_count - llp - 1].y = event -> xexpose.y;
 659                     xrect[draw_count - llp - 1].width = event -> xexpose.width;
 660                     xrect[draw_count - llp - 1].height = event -> xexpose.height;
 661                   }
 662
 663                if ((last_count != 0) && (llp == 0))
 664                   {
 665                     xrect[draw_count - llp - 1].x = event -> xexpose.x;
 666                     xrect[draw_count - llp - 1].y = event -> xexpose.y;
 667                     xrect[draw_count - llp - 1].width = event -> xexpose.width;
 668                     xrect[draw_count - llp - 1].height = event -> xexpose.height;
 669
 670                     XSetClipRectangles(display,gc,0,0,xrect,draw_count,Unsorted);
 671 //                    panel->DoPaint(xrect,draw_count);
 672                     panel->GetEventHandler()->OnPaint();
 673
 674                     delete xrect;
 675                   }
 676                last_count = event -> xexpose.count;
 677                */
 678                break;
 679           default :
 680                cout << "\n\nNew Event ! is = " << event -> type << "\n";
 681                break;
 682         }
 683    }
 684
 685 static void wxDialogBoxEventHandler (Widget    wid,
 686                               XtPointer client_data,
 687                               XEvent*   event,
 688                               Boolean *continueToDispatch)
 689 {
 690   wxDialog *dialog = (wxDialog *)wxWidgetHashTable->Get((long)wid);
 691   if (dialog)
 692   {
 693     wxMouseEvent wxevent(wxEVT_NULL);
 694     if (wxTranslateMouseEvent(wxevent, dialog, wid, event))
 695     {
 696         wxevent.SetEventObject(dialog);
 697         wxevent.SetId(dialog->GetId());
 698         dialog->GetEventHandler()->ProcessEvent(wxevent);
 699     }
 700     else
 701     {
 702       // An attempt to implement OnCharHook by calling OnCharHook first;
 703       // if this returns TRUE, set continueToDispatch to False
 704       // (don't continue processing).
 705       // Otherwise set it to True and call OnChar.
 706       wxKeyEvent keyEvent(wxEVENT_TYPE_CHAR);
 707       if (wxTranslateKeyEvent(keyEvent, dialog, wid, event))
 708       {
 709         keyEvent.SetEventObject(dialog);
 710         keyEvent.SetId(dialog->GetId());
 711         keyEvent.SetEventType(wxEVT_CHAR_HOOK);
 712         if (dialog->GetEventHandler()->ProcessEvent(keyEvent))
 713         {
 714             *continueToDispatch = False;
 715             return;
 716         }
 717         else
 718         {
 719             keyEvent.SetEventType(wxEVT_CHAR);
 720             dialog->GetEventHandler()->ProcessEvent(keyEvent);
 721         }
 722       }
 723     }
 724   }
 725   *continueToDispatch = True;
 726 }
 727
 728 static void wxUnmapBulletinBoard(Widget dialog, wxDialog *client,XtPointer call)
 729 {
 730   /* This gets called when the dialog is being shown, which
 731    * defeats modal showing.
 732   client->m_modalShowing = FALSE ;
 733   client->m_isShown = FALSE;
 734   */
 735 }