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