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::SetTitle(const wxString& title)
 346 {
 347     m_dialogTitle = title;
 348     if (!title.IsNull())
 349     {
 350         XmString str = XmStringCreateSimple((char*) (const char*) title);
 351         XtVaSetValues((Widget) m_mainWidget,
 352             XmNtitle, (char*) (const char*) title,
 353             XmNdialogTitle, str, // Roberto Cocchi
 354             XmNiconName, (char*) (const char*) title,
 355             NULL);
 356         XmStringFree(str);
 357     }
 358 }
 359
 360 wxString wxDialog::GetTitle() const
 361 {
 362     return m_dialogTitle;
 363 }
 364
 365 void wxDialog::Centre(int direction)
 366 {
 367     int x_offset,y_offset ;
 368     int display_width, display_height;
 369     int  width, height, x, y;
 370     wxWindow *parent = GetParent();
 371     if ((direction & wxCENTER_FRAME) && parent)
 372     {
 373         parent->GetPosition(&x_offset,&y_offset) ;
 374         parent->GetSize(&display_width,&display_height) ;
 375     }
 376     else
 377     {
 378         wxDisplaySize(&display_width, &display_height);
 379         x_offset = 0 ;
 380         y_offset = 0 ;
 381     }
 382
 383     GetSize(&width, &height);
 384     GetPosition(&x, &y);
 385
 386     if (direction & wxHORIZONTAL)
 387         x = (int)((display_width - width)/2);
 388     if (direction & wxVERTICAL)
 389         y = (int)((display_height - height)/2);
 390
 391     SetSize(x+x_offset, y+y_offset, width, height);
 392 }
 393
 394 void wxDialog::Raise()
 395 {
 396     Window parent_window = XtWindow((Widget) m_mainWidget),
 397         next_parent   = XtWindow((Widget) m_mainWidget),
 398         root          = RootWindowOfScreen(XtScreen((Widget) m_mainWidget));
 399     // search for the parent that is child of ROOT, because the WM may
 400     // reparent twice and notify only the next parent (like FVWM)
 401     while (next_parent != root) {
 402         Window *theChildren; unsigned int n;
 403         parent_window = next_parent;
 404         XQueryTree(XtDisplay((Widget) m_mainWidget), parent_window, &root,
 405             &next_parent, &theChildren, &n);
 406         XFree(theChildren); // not needed
 407     }
 408     XRaiseWindow(XtDisplay((Widget) m_mainWidget), parent_window);
 409 }
 410
 411 void wxDialog::Lower()
 412 {
 413     Window parent_window = XtWindow((Widget) m_mainWidget),
 414         next_parent   = XtWindow((Widget) m_mainWidget),
 415         root          = RootWindowOfScreen(XtScreen((Widget) m_mainWidget));
 416     // search for the parent that is child of ROOT, because the WM may
 417     // reparent twice and notify only the next parent (like FVWM)
 418     while (next_parent != root) {
 419         Window *theChildren; unsigned int n;
 420         parent_window = next_parent;
 421         XQueryTree(XtDisplay((Widget) m_mainWidget), parent_window, &root,
 422             &next_parent, &theChildren, &n);
 423         XFree(theChildren); // not needed
 424     }
 425     XLowerWindow(XtDisplay((Widget) m_mainWidget), parent_window);
 426 }
 427
 428 bool wxDialog::Show(bool show)
 429 {
 430     m_isShown = show;
 431
 432     if (show)
 433     {
 434         if (!wxUSE_INVISIBLE_RESIZE)
 435             XtMapWidget(XtParent((Widget) m_mainWidget));
 436         else
 437             XtManageChild((Widget) m_mainWidget) ;
 438
 439         XRaiseWindow(XtDisplay((Widget) m_mainWidget), XtWindow((Widget) m_mainWidget));
 440
 441     }
 442     else
 443     {
 444         if (!wxUSE_INVISIBLE_RESIZE)
 445             XtUnmapWidget(XtParent((Widget) m_mainWidget));
 446         else
 447             XtUnmanageChild((Widget) m_mainWidget) ;
 448
 449         XFlush(XtDisplay((Widget) wxTheApp->GetTopLevelWidget()));
 450         XSync(XtDisplay((Widget) wxTheApp->GetTopLevelWidget()), FALSE);
 451     }
 452
 453     return TRUE;
 454 }
 455
 456 // Shows a dialog modally, returning a return code
 457 int wxDialog::ShowModal()
 458 {
 459     m_windowStyle |= wxDIALOG_MODAL;
 460
 461     Show(TRUE);
 462
 463     if (m_modalShowing)
 464         return 0;
 465
 466     wxModalShowingStack.Insert((wxObject *)TRUE);
 467
 468     m_modalShowing = TRUE;
 469     XtAddGrab((Widget) m_mainWidget, TRUE, FALSE);
 470
 471     XEvent event;
 472
 473     // Loop until we signal that the dialog should be closed
 474     while ((wxModalShowingStack.Number() > 0) && ((int)(wxModalShowingStack.First()->Data()) != 0))
 475     {
 476         //        XtAppProcessEvent((XtAppContext) wxTheApp->GetAppContext(), XtIMAll);
 477
 478         XtAppNextEvent((XtAppContext) wxTheApp->GetAppContext(), &event);
 479         wxTheApp->ProcessXEvent((WXEvent*) &event);
 480     }
 481
 482     // Remove modal dialog flag from stack
 483     wxNode *node = wxModalShowingStack.First();
 484     if (node)
 485         delete node;
 486
 487     // Now process all events in case they get sent to a destroyed dialog
 488     XSync(XtDisplay((Widget) wxTheApp->GetTopLevelWidget()), FALSE);
 489     while (XtAppPending((XtAppContext) wxTheApp->GetAppContext()))
 490     {
 491         XFlush(XtDisplay((Widget) wxTheApp->GetTopLevelWidget()));
 492         XtAppNextEvent((XtAppContext) wxTheApp->GetAppContext(), &event);
 493
 494         wxTheApp->ProcessXEvent((WXEvent*) &event);
 495     }
 496
 497     // TODO: is it safe to call this, if the dialog may have been deleted
 498     // by now? Probably only if we're using delayed deletion of dialogs.
 499     return GetReturnCode();
 500 }
 501
 502 void wxDialog::EndModal(int retCode)
 503 {
 504     if (!m_modalShowing)
 505         return;
 506
 507     SetReturnCode(retCode);
 508
 509     // Strangely, we don't seem to need this now.
 510     //    XtRemoveGrab((Widget) m_mainWidget);
 511
 512     Show(FALSE);
 513
 514     m_modalShowing = FALSE;
 515
 516     wxNode *node = wxModalShowingStack.First();
 517     if (node)
 518         node->SetData((wxObject *)FALSE);
 519 }
 520
 521 // Standard buttons
 522 void wxDialog::OnOK(wxCommandEvent& WXUNUSED(event))
 523 {
 524     if ( Validate() && TransferDataFromWindow() )
 525     {
 526         if ( IsModal() )
 527             EndModal(wxID_OK);
 528         else
 529         {
 530             SetReturnCode(wxID_OK);
 531             this->Show(FALSE);
 532         }
 533     }
 534 }
 535
 536 void wxDialog::OnApply(wxCommandEvent& WXUNUSED(event))
 537 {
 538     if (Validate())
 539         TransferDataFromWindow();
 540     // TODO probably need to disable the Apply button until things change again
 541 }
 542
 543 void wxDialog::OnCancel(wxCommandEvent& WXUNUSED(event))
 544 {
 545     if ( IsModal() )
 546         EndModal(wxID_CANCEL);
 547     else
 548     {
 549         SetReturnCode(wxID_CANCEL);
 550         this->Show(FALSE);
 551     }
 552 }
 553
 554 void wxDialog::OnCloseWindow(wxCloseEvent& event)
 555 {
 556     // We'll send a Cancel message by default,
 557     // which may close the dialog.
 558     // Check for looping if the Cancel event handler calls Close().
 559
 560     // Note that if a cancel button and handler aren't present in the dialog,
 561     // nothing will happen when you close the dialog via the window manager, or
 562     // via Close().
 563     // We wouldn't want to destroy the dialog by default, since the dialog may have been
 564     // created on the stack.
 565     // However, this does mean that calling dialog->Close() won't delete the dialog
 566     // unless the handler for wxID_CANCEL does so. So use Destroy() if you want to be
 567     // sure to destroy the dialog.
 568     // The default OnCancel (above) simply ends a modal dialog, and hides a modeless dialog.
 569
 570     static wxList closing;
 571
 572     if ( closing.Member(this) )
 573         return;
 574
 575     closing.Append(this);
 576
 577     wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
 578     cancelEvent.SetEventObject( this );
 579     GetEventHandler()->ProcessEvent(cancelEvent); // This may close the dialog
 580
 581     closing.DeleteObject(this);
 582 }
 583
 584 // Destroy the window (delayed, if a managed window)
 585 bool wxDialog::Destroy()
 586 {
 587     if (!wxPendingDelete.Member(this))
 588         wxPendingDelete.Append(this);
 589     return TRUE;
 590 }
 591
 592 void wxDialog::OnSysColourChanged(wxSysColourChangedEvent& WXUNUSED(event))
 593 {
 594     SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
 595     Refresh();
 596 }
 597
 598 void wxDialog::Fit()
 599 {
 600     wxWindow::Fit();
 601 }
 602
 603 // Handle a close event from the window manager
 604 static void wxCloseDialogCallback( Widget WXUNUSED(widget), XtPointer client_data,
 605                                   XmAnyCallbackStruct *WXUNUSED(cbs))
 606 {
 607     wxDialog *dialog = (wxDialog *)client_data;
 608     wxCloseEvent closeEvent(wxEVT_CLOSE_WINDOW, dialog->GetId());
 609     closeEvent.SetEventObject(dialog);
 610
 611     // May delete the dialog (with delayed deletion)
 612     dialog->GetEventHandler()->ProcessEvent(closeEvent);
 613 }
 614
 615 void wxDialogBoxEventHandler (Widget    wid,
 616                                      XtPointer WXUNUSED(client_data),
 617                                      XEvent*   event,
 618                                      Boolean *continueToDispatch)
 619 {
 620     wxDialog *dialog = (wxDialog *)wxWidgetHashTable->Get((long)wid);
 621     if (dialog)
 622     {
 623         wxMouseEvent wxevent(wxEVT_NULL);
 624         if (wxTranslateMouseEvent(wxevent, dialog, wid, event))
 625         {
 626             wxevent.SetEventObject(dialog);
 627             wxevent.SetId(dialog->GetId());
 628             dialog->GetEventHandler()->ProcessEvent(wxevent);
 629         }
 630         else
 631         {
 632             // An attempt to implement OnCharHook by calling OnCharHook first;
 633             // if this returns TRUE, set continueToDispatch to False
 634             // (don't continue processing).
 635             // Otherwise set it to True and call OnChar.
 636             wxKeyEvent keyEvent(wxEVT_CHAR);
 637             if (wxTranslateKeyEvent(keyEvent, dialog, wid, event))
 638             {
 639                 keyEvent.SetEventObject(dialog);
 640                 keyEvent.SetId(dialog->GetId());
 641                 keyEvent.SetEventType(wxEVT_CHAR_HOOK);
 642                 if (dialog->GetEventHandler()->ProcessEvent(keyEvent))
 643                 {
 644                     *continueToDispatch = False;
 645                     return;
 646                 }
 647                 else
 648                 {
 649                     // For simplicity, OnKeyDown is the same as OnChar
 650                     // TODO: filter modifier key presses from OnChar
 651                     keyEvent.SetEventType(wxEVT_KEY_DOWN);
 652
 653                     // Only process OnChar if OnKeyDown didn't swallow it
 654                     if (!dialog->GetEventHandler()->ProcessEvent (keyEvent))
 655                     {
 656                         keyEvent.SetEventType(wxEVT_CHAR);
 657                         dialog->GetEventHandler()->ProcessEvent(keyEvent);
 658                     }
 659                 }
 660             }
 661         }
 662     }
 663     *continueToDispatch = True;
 664 }
 665
 666 static void wxUnmapBulletinBoard(Widget WXUNUSED(dialog), wxDialog *WXUNUSED(client), XtPointer WXUNUSED(call) )
 667 {
 668 /* This gets called when the dialog is being shown, which
 669 * defeats modal showing.
 670 client->m_modalShowing = FALSE ;
 671 client->m_isShown = FALSE;
 672     */
 673 }
 674
 675 void wxDialog::ChangeFont(bool keepOriginalSize)
 676 {
 677     wxWindow::ChangeFont(keepOriginalSize);
 678 }
 679
 680 void wxDialog::ChangeBackgroundColour()
 681 {
 682     if (GetMainWidget())
 683         DoChangeBackgroundColour(GetMainWidget(), m_backgroundColour);
 684 }
 685
 686 void wxDialog::ChangeForegroundColour()
 687 {
 688     if (GetMainWidget())
 689         DoChangeForegroundColour(GetMainWidget(), m_foregroundColour);
 690 }
 691