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 wxDialogBoxEventHandler (Widget    wid,
  46                                      XtPointer client_data,
  47                                      XEvent*   event,
  48                                      Boolean *continueToDispatch);
  49
  50 static void wxUnmapBulletinBoard(Widget dialog, wxDialog *client,XtPointer call);
  51
  52 // A stack of modal_showing flags, since we can't rely
  53 // on accessing wxDialog::m_modalShowing within
  54 // wxDialog::Show in case a callback has deleted the wxDialog.
  55 static wxList wxModalShowingStack;
  56
  57 // Lists to keep track of windows, so we can disable/enable them
  58 // for modal dialogs
  59 wxList wxModalDialogs;
  60 wxList wxModelessWindows;  // Frames and modeless dialogs
  61 extern wxList wxPendingDelete;
  62
  63 #define wxUSE_INVISIBLE_RESIZE 1
  64
  65 #if !USE_SHARED_LIBRARY
  66 IMPLEMENT_DYNAMIC_CLASS(wxDialog, wxPanel)
  67
  68 BEGIN_EVENT_TABLE(wxDialog, wxPanel)
  69   EVT_SIZE(wxDialog::OnSize)
  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     m_backgroundColour = 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     m_backgroundColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE);
  98     m_foregroundColour = *wxBLACK;
  99
 100     SetName(name);
 101
 102     if (!parent)
 103         wxTopLevelWindows.Append(this);
 104
 105     if (parent) parent->AddChild(this);
 106
 107     if ( id == -1 )
 108         m_windowId = (int)NewControlId();
 109     else
 110         m_windowId = id;
 111
 112     Widget parentWidget = (Widget) 0;
 113     if (parent)
 114         parentWidget = (Widget) parent->GetTopWidget();
 115     if (!parent)
 116         parentWidget = (Widget) wxTheApp->GetTopLevelWidget();
 117
 118     wxASSERT_MSG( (parentWidget != (Widget) 0), "Could not find a suitable parent shell for dialog." );
 119
 120     Arg args[2];
 121     XtSetArg (args[0], XmNdefaultPosition, False);
 122     XtSetArg (args[1], XmNautoUnmanage, False);
 123     Widget dialogShell = XmCreateBulletinBoardDialog(parentWidget, (char*) (const char*) name, args, 2);
 124     m_mainWidget = (WXWidget) dialogShell;
 125
 126     // We don't want margins, since there is enough elsewhere.
 127     XtVaSetValues(dialogShell,
 128         XmNmarginHeight,   0,
 129         XmNmarginWidth,    0,
 130         XmNresizePolicy, XmRESIZE_NONE,
 131         NULL) ;
 132
 133     Widget shell = XtParent(dialogShell) ;
 134     if (!title.IsNull())
 135     {
 136         XmString str = XmStringCreateSimple((char*) (const char*)title);
 137         XtVaSetValues(dialogShell,
 138             XmNdialogTitle, str,
 139             NULL);
 140         XmStringFree(str);
 141     }
 142
 143     m_font = wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT);
 144     ChangeFont(FALSE);
 145
 146     wxAddWindowToTable(dialogShell, this);
 147
 148     // Intercept CLOSE messages from the window manager
 149     Atom WM_DELETE_WINDOW = XmInternAtom(XtDisplay(shell), "WM_DELETE_WINDOW", False);
 150
 151     /* Remove and add WM_DELETE_WINDOW so ours is only handler */
 152     /* Why do we have to do this for wxDialog, but not wxFrame? */
 153     XmRemoveWMProtocols(shell, &WM_DELETE_WINDOW, 1);
 154     XmAddWMProtocols(shell, &WM_DELETE_WINDOW, 1);
 155     XmActivateWMProtocol(shell, WM_DELETE_WINDOW);
 156
 157     // Modified Steve Hammes for Motif 2.0
 158 #if (XmREVISION > 1 || XmVERSION > 1)
 159     XmAddWMProtocolCallback(shell, WM_DELETE_WINDOW, (XtCallbackProc) wxCloseDialogCallback, (XtPointer)this);
 160 #elif XmREVISION == 1
 161     XmAddWMProtocolCallback(shell, WM_DELETE_WINDOW, (XtCallbackProc) wxCloseDialogCallback, (caddr_t)this);
 162 #else
 163     XmAddWMProtocolCallback(shell, WM_DELETE_WINDOW, (void (*)())wxCloseDialogCallback, (caddr_t)this);
 164 #endif
 165
 166     XtTranslations ptr ;
 167     XtOverrideTranslations(dialogShell,
 168         ptr = XtParseTranslationTable("<Configure>: resize()"));
 169     XtFree((char *)ptr);
 170
 171     // Can't remember what this was about... but I think it's necessary.
 172
 173     if (wxUSE_INVISIBLE_RESIZE)
 174     {
 175         if (pos.x > -1)
 176             XtVaSetValues(dialogShell, XmNx, pos.x,
 177             NULL);
 178         if (pos.y > -1)
 179             XtVaSetValues(dialogShell, XmNy, pos.y,
 180             NULL);
 181
 182         if (size.x > -1)
 183             XtVaSetValues(dialogShell, XmNwidth, size.x, NULL);
 184         if (size.y > -1)
 185             XtVaSetValues(dialogShell, XmNheight, size.y, NULL);
 186     }
 187
 188     // This patch come from Torsten Liermann lier@lier1.muc.de
 189     if (XmIsMotifWMRunning(shell))
 190     {
 191         int decor = 0 ;
 192         if (m_windowStyle & wxRESIZE_BORDER)
 193             decor |= MWM_DECOR_RESIZEH ;
 194         if (m_windowStyle & wxSYSTEM_MENU)
 195             decor |= MWM_DECOR_MENU;
 196         if ((m_windowStyle & wxCAPTION) ||
 197             (m_windowStyle & wxTINY_CAPTION_HORIZ) ||
 198             (m_windowStyle & wxTINY_CAPTION_VERT))
 199             decor |= MWM_DECOR_TITLE;
 200         if (m_windowStyle & wxTHICK_FRAME)
 201             decor |= MWM_DECOR_BORDER;
 202         if (m_windowStyle & wxMINIMIZE_BOX)
 203             decor |= MWM_DECOR_MINIMIZE;
 204         if (m_windowStyle & wxMAXIMIZE_BOX)
 205             decor |= MWM_DECOR_MAXIMIZE;
 206
 207         XtVaSetValues(shell,XmNmwmDecorations,decor,NULL) ;
 208     }
 209     // This allows non-Motif window managers to support at least the
 210     // no-decorations case.
 211     else
 212     {
 213         if ((m_windowStyle & wxCAPTION) != wxCAPTION)
 214             XtVaSetValues((Widget) shell,XmNoverrideRedirect,TRUE,NULL);
 215     }
 216
 217     XtRealizeWidget(dialogShell);
 218
 219     XtAddCallback(dialogShell,XmNunmapCallback,
 220         (XtCallbackProc)wxUnmapBulletinBoard,this) ;
 221
 222     // Positioning of the dialog doesn't work properly unless the dialog
 223     // is managed, so we manage without mapping to the screen.
 224     // To show, we map the shell (actually it's parent).
 225     if (!wxUSE_INVISIBLE_RESIZE)
 226         XtVaSetValues(shell, XmNmappedWhenManaged, FALSE, NULL);
 227
 228     if (!wxUSE_INVISIBLE_RESIZE)
 229     {
 230         XtManageChild(dialogShell);
 231         SetSize(pos.x, pos.y, size.x, size.y);
 232     }
 233     XtAddEventHandler(dialogShell,ExposureMask,FALSE,
 234         wxUniversalRepaintProc, (XtPointer) this);
 235
 236     XtAddEventHandler(dialogShell,
 237         ButtonPressMask | ButtonReleaseMask | PointerMotionMask | KeyPressMask,
 238         FALSE,
 239         wxDialogBoxEventHandler,
 240         (XtPointer)this);
 241
 242     ChangeBackgroundColour();
 243
 244     return TRUE;
 245 }
 246
 247 void wxDialog::SetModal(bool flag)
 248 {
 249     if ( flag )
 250         m_windowStyle |= wxDIALOG_MODAL ;
 251     else
 252         if ( m_windowStyle & wxDIALOG_MODAL )
 253             m_windowStyle -= wxDIALOG_MODAL ;
 254
 255         wxModelessWindows.DeleteObject(this);
 256         if (!flag)
 257             wxModelessWindows.Append(this);
 258 }
 259
 260 wxDialog::~wxDialog()
 261 {
 262     m_isBeingDeleted = TRUE;
 263
 264     if (m_mainWidget)
 265       XtRemoveEventHandler((Widget) m_mainWidget, ExposureMask, FALSE,
 266           wxUniversalRepaintProc, (XtPointer) this);
 267
 268     m_modalShowing = FALSE;
 269     if (!wxUSE_INVISIBLE_RESIZE && m_mainWidget)
 270     {
 271         XtUnmapWidget((Widget) m_mainWidget);
 272     }
 273
 274     wxTopLevelWindows.DeleteObject(this);
 275
 276     if ( (GetWindowStyleFlag() & wxDIALOG_MODAL) != wxDIALOG_MODAL )
 277         wxModelessWindows.DeleteObject(this);
 278
 279     // If this is the last top-level window, exit.
 280     if (wxTheApp && (wxTopLevelWindows.Number() == 0))
 281     {
 282         wxTheApp->SetTopWindow(NULL);
 283
 284         if (wxTheApp->GetExitOnFrameDelete())
 285         {
 286             wxTheApp->ExitMainLoop();
 287         }
 288     }
 289
 290     // This event-flushing code used to be in wxWindow::PostDestroyChildren (wx_dialog.cpp)
 291     // but I think this should work, if we destroy the children first.
 292     // Note that this might need to be done for wxFrame also.
 293     DestroyChildren();
 294
 295     // The idea about doing it here is that if you have to remove the
 296     // XtDestroyWidget from ~wxWindow, at least top-level windows
 297     // will still be deleted (and destroy children implicitly).
 298     if (GetMainWidget())
 299     {
 300       DetachWidget(GetMainWidget()); // Removes event handlers
 301       XtDestroyWidget((Widget) GetMainWidget());
 302       SetMainWidget((WXWidget) NULL);
 303     }
 304 }
 305
 306 // By default, pressing escape cancels the dialog
 307 void wxDialog::OnCharHook(wxKeyEvent& event)
 308 {
 309     if (event.m_keyCode == WXK_ESCAPE)
 310     {
 311         // Behaviour changed in 2.0: we'll send a Cancel message
 312         // to the dialog instead of Close.
 313         wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
 314         cancelEvent.SetEventObject( this );
 315         GetEventHandler()->ProcessEvent(cancelEvent);
 316
 317         return;
 318     }
 319     // We didn't process this event.
 320     event.Skip();
 321 }
 322
 323 void wxDialog::Iconize(bool WXUNUSED(iconize))
 324 {
 325     // Can't iconize a dialog in Motif, apparently
 326     // TODO: try using the parent of m_mainShell.
 327     //  XtVaSetValues((Widget) m_mainWidget, XmNiconic, iconize, NULL);
 328 }
 329
 330 // Default resizing behaviour - if only ONE subwindow,
 331 // resize to client rectangle size
 332 void wxDialog::OnSize(wxSizeEvent& WXUNUSED(event))
 333 {
 334     // if we're using constraints - do use them
 335 #if wxUSE_CONSTRAINTS
 336     if ( GetAutoLayout() ) {
 337         Layout();
 338         return;
 339     }
 340 #endif
 341
 342     // do we have _exactly_ one child?
 343     wxWindow *child = NULL;
 344     for ( wxNode *node = GetChildren().First(); node; node = node->Next() )
 345     {
 346         wxWindow *win = (wxWindow *)node->Data();
 347         if ( !win->IsKindOf(CLASSINFO(wxFrame))  &&
 348             !win->IsKindOf(CLASSINFO(wxDialog))  )
 349         {
 350             if ( child )
 351                 return;     // it's our second subwindow - nothing to do
 352             child = win;
 353         }
 354     }
 355
 356     if ( child ) {
 357         // we have exactly one child - set it's size to fill the whole frame
 358         int clientW, clientH;
 359         GetClientSize(&clientW, &clientH);
 360
 361         int x = 0;
 362         int y = 0;
 363
 364         child->SetSize(x, y, clientW, clientH);
 365     }
 366 }
 367
 368
 369 bool wxDialog::IsIconized() const
 370 {
 371 /*
 372 Boolean iconic;
 373 XtVaGetValues((Widget) m_mainWidget, XmNiconic, &iconic, NULL);
 374
 375   return iconic;
 376     */
 377     return FALSE;
 378 }
 379
 380 void wxDialog::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 381 {
 382     XtVaSetValues((Widget) m_mainWidget, XmNresizePolicy, XmRESIZE_ANY, NULL);
 383     wxWindow::DoSetSize(x, y, width, height, sizeFlags);
 384     XtVaSetValues((Widget) m_mainWidget, XmNresizePolicy, XmRESIZE_NONE, NULL);
 385 }
 386
 387 void wxDialog::DoSetClientSize(int width, int height)
 388 {
 389     wxWindow::SetSize(-1, -1, width, height);
 390 }
 391
 392 void wxDialog::SetTitle(const wxString& title)
 393 {
 394     m_dialogTitle = title;
 395     if (!title.IsNull())
 396     {
 397         XmString str = XmStringCreateSimple((char*) (const char*) title);
 398         XtVaSetValues((Widget) m_mainWidget,
 399             XmNtitle, (char*) (const char*) title,
 400             XmNdialogTitle, str, // Roberto Cocchi
 401             XmNiconName, (char*) (const char*) title,
 402             NULL);
 403         XmStringFree(str);
 404     }
 405 }
 406
 407 wxString wxDialog::GetTitle() const
 408 {
 409     return m_dialogTitle;
 410 }
 411
 412 void wxDialog::Raise()
 413 {
 414     Window parent_window = XtWindow((Widget) m_mainWidget),
 415         next_parent   = XtWindow((Widget) m_mainWidget),
 416         root          = RootWindowOfScreen(XtScreen((Widget) m_mainWidget));
 417     // search for the parent that is child of ROOT, because the WM may
 418     // reparent twice and notify only the next parent (like FVWM)
 419     while (next_parent != root) {
 420         Window *theChildren; unsigned int n;
 421         parent_window = next_parent;
 422         XQueryTree(XtDisplay((Widget) m_mainWidget), parent_window, &root,
 423             &next_parent, &theChildren, &n);
 424         XFree(theChildren); // not needed
 425     }
 426     XRaiseWindow(XtDisplay((Widget) m_mainWidget), parent_window);
 427 }
 428
 429 void wxDialog::Lower()
 430 {
 431     Window parent_window = XtWindow((Widget) m_mainWidget),
 432         next_parent   = XtWindow((Widget) m_mainWidget),
 433         root          = RootWindowOfScreen(XtScreen((Widget) m_mainWidget));
 434     // search for the parent that is child of ROOT, because the WM may
 435     // reparent twice and notify only the next parent (like FVWM)
 436     while (next_parent != root) {
 437         Window *theChildren; unsigned int n;
 438         parent_window = next_parent;
 439         XQueryTree(XtDisplay((Widget) m_mainWidget), parent_window, &root,
 440             &next_parent, &theChildren, &n);
 441         XFree(theChildren); // not needed
 442     }
 443     XLowerWindow(XtDisplay((Widget) m_mainWidget), parent_window);
 444 }
 445
 446 bool wxDialog::Show(bool show)
 447 {
 448     m_isShown = show;
 449
 450     if (show)
 451     {
 452         if (!wxUSE_INVISIBLE_RESIZE)
 453             XtMapWidget(XtParent((Widget) m_mainWidget));
 454         else
 455             XtManageChild((Widget) m_mainWidget) ;
 456
 457         XRaiseWindow(XtDisplay((Widget) m_mainWidget), XtWindow((Widget) m_mainWidget));
 458
 459     }
 460     else
 461     {
 462         if (!wxUSE_INVISIBLE_RESIZE)
 463             XtUnmapWidget(XtParent((Widget) m_mainWidget));
 464         else
 465             XtUnmanageChild((Widget) m_mainWidget) ;
 466
 467         XFlush(XtDisplay((Widget) wxTheApp->GetTopLevelWidget()));
 468         XSync(XtDisplay((Widget) wxTheApp->GetTopLevelWidget()), FALSE);
 469     }
 470
 471     return TRUE;
 472 }
 473
 474 // Shows a dialog modally, returning a return code
 475 int wxDialog::ShowModal()
 476 {
 477     m_windowStyle |= wxDIALOG_MODAL;
 478
 479     Show(TRUE);
 480
 481     if (m_modalShowing)
 482         return 0;
 483
 484     wxModalShowingStack.Insert((wxObject *)TRUE);
 485
 486     m_modalShowing = TRUE;
 487     XtAddGrab((Widget) m_mainWidget, TRUE, FALSE);
 488
 489     XEvent event;
 490
 491     // Loop until we signal that the dialog should be closed
 492     while ((wxModalShowingStack.Number() > 0) && ((int)(wxModalShowingStack.First()->Data()) != 0))
 493     {
 494         //        XtAppProcessEvent((XtAppContext) wxTheApp->GetAppContext(), XtIMAll);
 495
 496         XtAppNextEvent((XtAppContext) wxTheApp->GetAppContext(), &event);
 497         wxTheApp->ProcessXEvent((WXEvent*) &event);
 498     }
 499
 500     // Remove modal dialog flag from stack
 501     wxNode *node = wxModalShowingStack.First();
 502     if (node)
 503         delete node;
 504
 505     // Now process all events in case they get sent to a destroyed dialog
 506     XSync(XtDisplay((Widget) wxTheApp->GetTopLevelWidget()), FALSE);
 507     while (XtAppPending((XtAppContext) wxTheApp->GetAppContext()))
 508     {
 509         XFlush(XtDisplay((Widget) wxTheApp->GetTopLevelWidget()));
 510         XtAppNextEvent((XtAppContext) wxTheApp->GetAppContext(), &event);
 511
 512         wxTheApp->ProcessXEvent((WXEvent*) &event);
 513     }
 514
 515     // TODO: is it safe to call this, if the dialog may have been deleted
 516     // by now? Probably only if we're using delayed deletion of dialogs.
 517     return GetReturnCode();
 518 }
 519
 520 void wxDialog::EndModal(int retCode)
 521 {
 522     if (!m_modalShowing)
 523         return;
 524
 525     SetReturnCode(retCode);
 526
 527     // Strangely, we don't seem to need this now.
 528     //    XtRemoveGrab((Widget) m_mainWidget);
 529
 530     Show(FALSE);
 531
 532     m_modalShowing = FALSE;
 533
 534     wxNode *node = wxModalShowingStack.First();
 535     if (node)
 536         node->SetData((wxObject *)FALSE);
 537 }
 538
 539 // Standard buttons
 540 void wxDialog::OnOK(wxCommandEvent& WXUNUSED(event))
 541 {
 542     if ( Validate() && TransferDataFromWindow() )
 543     {
 544         if ( IsModal() )
 545             EndModal(wxID_OK);
 546         else
 547         {
 548             SetReturnCode(wxID_OK);
 549             this->Show(FALSE);
 550         }
 551     }
 552 }
 553
 554 void wxDialog::OnApply(wxCommandEvent& WXUNUSED(event))
 555 {
 556     if (Validate())
 557         TransferDataFromWindow();
 558     // TODO probably need to disable the Apply button until things change again
 559 }
 560
 561 void wxDialog::OnCancel(wxCommandEvent& WXUNUSED(event))
 562 {
 563     if ( IsModal() )
 564         EndModal(wxID_CANCEL);
 565     else
 566     {
 567         SetReturnCode(wxID_CANCEL);
 568         this->Show(FALSE);
 569     }
 570 }
 571
 572 void wxDialog::OnCloseWindow(wxCloseEvent& WXUNUSED(event))
 573 {
 574     // We'll send a Cancel message by default,
 575     // which may close the dialog.
 576     // Check for looping if the Cancel event handler calls Close().
 577
 578     // Note that if a cancel button and handler aren't present in the dialog,
 579     // nothing will happen when you close the dialog via the window manager, or
 580     // via Close().
 581     // We wouldn't want to destroy the dialog by default, since the dialog may have been
 582     // created on the stack.
 583     // However, this does mean that calling dialog->Close() won't delete the dialog
 584     // unless the handler for wxID_CANCEL does so. So use Destroy() if you want to be
 585     // sure to destroy the dialog.
 586     // The default OnCancel (above) simply ends a modal dialog, and hides a modeless dialog.
 587
 588     static wxList closing;
 589
 590     if ( closing.Member(this) )
 591         return;
 592
 593     closing.Append(this);
 594
 595     wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
 596     cancelEvent.SetEventObject( this );
 597     GetEventHandler()->ProcessEvent(cancelEvent); // This may close the dialog
 598
 599     closing.DeleteObject(this);
 600 }
 601
 602 void wxDialog::OnPaint(wxPaintEvent &WXUNUSED(event))
 603 {
 604   // added for compatiblity only
 605 }
 606
 607 // Destroy the window (delayed, if a managed window)
 608 bool wxDialog::Destroy()
 609 {
 610     if (!wxPendingDelete.Member(this))
 611         wxPendingDelete.Append(this);
 612     return TRUE;
 613 }
 614
 615 void wxDialog::OnSysColourChanged(wxSysColourChangedEvent& WXUNUSED(event))
 616 {
 617     SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
 618     Refresh();
 619 }
 620
 621 // Handle a close event from the window manager
 622 static void wxCloseDialogCallback( Widget WXUNUSED(widget), XtPointer client_data,
 623                                   XmAnyCallbackStruct *WXUNUSED(cbs))
 624 {
 625     wxDialog *dialog = (wxDialog *)client_data;
 626     wxCloseEvent closeEvent(wxEVT_CLOSE_WINDOW, dialog->GetId());
 627     closeEvent.SetEventObject(dialog);
 628
 629     // May delete the dialog (with delayed deletion)
 630     dialog->GetEventHandler()->ProcessEvent(closeEvent);
 631 }
 632
 633 void wxDialogBoxEventHandler(Widget    wid,
 634                              XtPointer WXUNUSED(client_data),
 635                              XEvent*   event,
 636                              Boolean*  continueToDispatch)
 637 {
 638     wxDialog *dialog = (wxDialog *)wxGetWindowFromTable(wid);
 639     if (dialog)
 640     {
 641         wxMouseEvent wxevent(wxEVT_NULL);
 642         if (wxTranslateMouseEvent(wxevent, dialog, wid, event))
 643         {
 644             wxevent.SetEventObject(dialog);
 645             wxevent.SetId(dialog->GetId());
 646             dialog->GetEventHandler()->ProcessEvent(wxevent);
 647         }
 648         else
 649         {
 650             // An attempt to implement OnCharHook by calling OnCharHook first;
 651             // if this returns TRUE, set continueToDispatch to False
 652             // (don't continue processing).
 653             // Otherwise set it to True and call OnChar.
 654             wxKeyEvent keyEvent(wxEVT_CHAR);
 655             if (wxTranslateKeyEvent(keyEvent, dialog, wid, event))
 656             {
 657                 keyEvent.SetEventObject(dialog);
 658                 keyEvent.SetId(dialog->GetId());
 659                 keyEvent.SetEventType(wxEVT_CHAR_HOOK);
 660                 if (dialog->GetEventHandler()->ProcessEvent(keyEvent))
 661                 {
 662                     *continueToDispatch = False;
 663                     return;
 664                 }
 665                 else
 666                 {
 667                     // For simplicity, OnKeyDown is the same as OnChar
 668                     // TODO: filter modifier key presses from OnChar
 669                     keyEvent.SetEventType(wxEVT_KEY_DOWN);
 670
 671                     // Only process OnChar if OnKeyDown didn't swallow it
 672                     if (!dialog->GetEventHandler()->ProcessEvent (keyEvent))
 673                     {
 674                         keyEvent.SetEventType(wxEVT_CHAR);
 675                         dialog->GetEventHandler()->ProcessEvent(keyEvent);
 676                     }
 677                 }
 678             }
 679         }
 680     }
 681     *continueToDispatch = True;
 682 }
 683
 684 static void wxUnmapBulletinBoard(Widget WXUNUSED(dialog), wxDialog *WXUNUSED(client), XtPointer WXUNUSED(call) )
 685 {
 686 /* This gets called when the dialog is being shown, which
 687 * defeats modal showing.
 688 client->m_modalShowing = FALSE ;
 689 client->m_isShown = FALSE;
 690     */
 691 }
 692
 693 void wxDialog::ChangeFont(bool keepOriginalSize)
 694 {
 695     wxWindow::ChangeFont(keepOriginalSize);
 696 }
 697
 698 void wxDialog::ChangeBackgroundColour()
 699 {
 700     if (GetMainWidget())
 701         DoChangeBackgroundColour(GetMainWidget(), m_backgroundColour);
 702 }
 703
 704 void wxDialog::ChangeForegroundColour()
 705 {
 706     if (GetMainWidget())
 707         DoChangeForegroundColour(GetMainWidget(), m_foregroundColour);
 708 }
 709