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