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