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 wxDialogBoxRepaintProc(Widget w, XtPointer c_data, XEvent *event, char *);
  46 static void wxDialogBoxEventHandler (Widget    wid,
  47                                      XtPointer client_data,
  48                                      XEvent*   event,
  49                                      Boolean *continueToDispatch);
  50
  51 static void wxUnmapBulletinBoard(Widget dialog, wxDialog *client,XtPointer call);
  52
  53 // A stack of modal_showing flags, since we can't rely
  54 // on accessing wxDialog::m_modalShowing within
  55 // wxDialog::Show in case a callback has deleted the wxDialog.
  56 static wxList wxModalShowingStack;
  57
  58 // Lists to keep track of windows, so we can disable/enable them
  59 // for modal dialogs
  60 wxList wxModalDialogs;
  61 wxList wxModelessWindows;  // Frames and modeless dialogs
  62 extern wxList wxPendingDelete;
  63
  64 #define wxUSE_INVISIBLE_RESIZE 1
  65
  66 #if !USE_SHARED_LIBRARY
  67 IMPLEMENT_DYNAMIC_CLASS(wxDialog, wxPanel)
  68
  69 BEGIN_EVENT_TABLE(wxDialog, wxPanel)
  70 EVT_BUTTON(wxID_OK, wxDialog::OnOK)
  71 EVT_BUTTON(wxID_APPLY, wxDialog::OnApply)
  72 EVT_BUTTON(wxID_CANCEL, wxDialog::OnCancel)
  73 EVT_CHAR_HOOK(wxDialog::OnCharHook)
  74 EVT_SYS_COLOUR_CHANGED(wxDialog::OnSysColourChanged)
  75 EVT_CLOSE(wxDialog::OnCloseWindow)
  76 END_EVENT_TABLE()
  77
  78 #endif
  79
  80 wxDialog::wxDialog()
  81 {
  82     m_modalShowing = FALSE;
  83     m_backgroundColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE);
  84 }
  85
  86 bool wxDialog::Create(wxWindow *parent, wxWindowID id,
  87                       const wxString& title,
  88                       const wxPoint& pos,
  89                       const wxSize& size,
  90                       long style,
  91                       const wxString& name)
  92 {
  93     m_windowStyle = style;
  94     m_modalShowing = FALSE;
  95     m_dialogTitle = title;
  96
  97     m_backgroundColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE);
  98     m_foregroundColour = *wxBLACK;
  99
 100     SetName(name);
 101
 102     if (!parent)
 103         wxTopLevelWindows.Append(this);
 104
 105     if (parent) parent->AddChild(this);
 106
 107     if ( id == -1 )
 108         m_windowId = (int)NewControlId();
 109     else
 110         m_windowId = id;
 111
 112     Widget parentWidget = (Widget) 0;
 113     if (parent)
 114         parentWidget = (Widget) parent->GetTopWidget();
 115     if (!parent)
 116         parentWidget = (Widget) wxTheApp->GetTopLevelWidget();
 117
 118     wxASSERT_MSG( (parentWidget != (Widget) 0), "Could not find a suitable parent shell for dialog." );
 119
 120     Arg args[2];
 121     XtSetArg (args[0], XmNdefaultPosition, False);
 122     XtSetArg (args[1], XmNautoUnmanage, False);
 123     Widget dialogShell = XmCreateBulletinBoardDialog(parentWidget, (char*) (const char*) name, args, 2);
 124     m_mainWidget = (WXWidget) dialogShell;
 125
 126     // We don't want margins, since there is enough elsewhere.
 127     XtVaSetValues(dialogShell,
 128         XmNmarginHeight,   0,
 129         XmNmarginWidth,    0,
 130         XmNresizePolicy, XmRESIZE_NONE,
 131         NULL) ;
 132
 133     Widget shell = XtParent(dialogShell) ;
 134     if (!title.IsNull())
 135     {
 136         XmString str = XmStringCreateSimple((char*) (const char*)title);
 137         XtVaSetValues(dialogShell,
 138             XmNdialogTitle, str,
 139             NULL);
 140         XmStringFree(str);
 141     }
 142
 143     m_windowFont = wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT);
 144     ChangeFont(FALSE);
 145
 146     wxAddWindowToTable(dialogShell, this);
 147
 148     // Intercept CLOSE messages from the window manager
 149     Atom WM_DELETE_WINDOW = XmInternAtom(XtDisplay(shell), "WM_DELETE_WINDOW", False);
 150
 151     /* Remove and add WM_DELETE_WINDOW so ours is only handler */
 152     /* Why do we have to do this for wxDialog, but not wxFrame? */
 153     XmRemoveWMProtocols(shell, &WM_DELETE_WINDOW, 1);
 154     XmAddWMProtocols(shell, &WM_DELETE_WINDOW, 1);
 155     XmActivateWMProtocol(shell, WM_DELETE_WINDOW);
 156
 157     // Modified Steve Hammes for Motif 2.0
 158 #if (XmREVISION > 1 || XmVERSION > 1)
 159     XmAddWMProtocolCallback(shell, WM_DELETE_WINDOW, (XtCallbackProc) wxCloseDialogCallback, (XtPointer)this);
 160 #elif XmREVISION == 1
 161     XmAddWMProtocolCallback(shell, WM_DELETE_WINDOW, (XtCallbackProc) wxCloseDialogCallback, (caddr_t)this);
 162 #else
 163     XmAddWMProtocolCallback(shell, WM_DELETE_WINDOW, (void (*)())wxCloseDialogCallback, (caddr_t)this);
 164 #endif
 165
 166     XtTranslations ptr ;
 167     XtOverrideTranslations(dialogShell,
 168         ptr = XtParseTranslationTable("<Configure>: resize()"));
 169     XtFree((char *)ptr);
 170
 171     // Can't remember what this was about... but I think it's necessary.
 172
 173     if (wxUSE_INVISIBLE_RESIZE)
 174     {
 175         if (pos.x > -1)
 176             XtVaSetValues(dialogShell, XmNx, pos.x,
 177             NULL);
 178         if (pos.y > -1)
 179             XtVaSetValues(dialogShell, XmNy, pos.y,
 180             NULL);
 181
 182         if (size.x > -1)
 183             XtVaSetValues(dialogShell, XmNwidth, size.x, NULL);
 184         if (size.y > -1)
 185             XtVaSetValues(dialogShell, XmNheight, size.y, NULL);
 186     }
 187
 188     // This patch come from Torsten Liermann lier@lier1.muc.de
 189     if (XmIsMotifWMRunning(shell))
 190     {
 191         int decor = 0 ;
 192         if (m_windowStyle & wxRESIZE_BORDER)
 193             decor |= MWM_DECOR_RESIZEH ;
 194         if (m_windowStyle & wxSYSTEM_MENU)
 195             decor |= MWM_DECOR_MENU;
 196         if ((m_windowStyle & wxCAPTION) ||
 197             (m_windowStyle & wxTINY_CAPTION_HORIZ) ||
 198             (m_windowStyle & wxTINY_CAPTION_VERT))
 199             decor |= MWM_DECOR_TITLE;
 200         if (m_windowStyle & wxTHICK_FRAME)
 201             decor |= MWM_DECOR_BORDER;
 202         if (m_windowStyle & wxMINIMIZE_BOX)
 203             decor |= MWM_DECOR_MINIMIZE;
 204         if (m_windowStyle & wxMAXIMIZE_BOX)
 205             decor |= MWM_DECOR_MAXIMIZE;
 206
 207         XtVaSetValues(shell,XmNmwmDecorations,decor,NULL) ;
 208     }
 209     // This allows non-Motif window managers to support at least the
 210     // no-decorations case.
 211     else
 212     {
 213         if ((m_windowStyle & wxCAPTION) != wxCAPTION)
 214             XtVaSetValues((Widget) shell,XmNoverrideRedirect,TRUE,NULL);
 215     }
 216
 217     XtRealizeWidget(dialogShell);
 218
 219     XtAddCallback(dialogShell,XmNunmapCallback,
 220         (XtCallbackProc)wxUnmapBulletinBoard,this) ;
 221
 222     // Positioning of the dialog doesn't work properly unless the dialog
 223     // is managed, so we manage without mapping to the screen.
 224     // To show, we map the shell (actually it's parent).
 225     if (!wxUSE_INVISIBLE_RESIZE)
 226         XtVaSetValues(shell, XmNmappedWhenManaged, FALSE, NULL);
 227
 228     if (!wxUSE_INVISIBLE_RESIZE)
 229     {
 230         XtManageChild(dialogShell);
 231         SetSize(pos.x, pos.y, size.x, size.y);
 232     }
 233     XtAddEventHandler(dialogShell,ExposureMask,FALSE,
 234         wxDialogBoxRepaintProc, (XtPointer) this);
 235
 236     XtAddEventHandler(dialogShell,
 237         ButtonPressMask | ButtonReleaseMask | PointerMotionMask | KeyPressMask,
 238         FALSE,
 239         wxDialogBoxEventHandler,
 240         (XtPointer)this);
 241
 242     ChangeBackgroundColour();
 243
 244     return TRUE;
 245 }
 246
 247 void wxDialog::SetModal(bool flag)
 248 {
 249     if ( flag )
 250         m_windowStyle |= wxDIALOG_MODAL ;
 251     else
 252         if ( m_windowStyle & wxDIALOG_MODAL )
 253             m_windowStyle -= wxDIALOG_MODAL ;
 254
 255         wxModelessWindows.DeleteObject(this);
 256         if (!flag)
 257             wxModelessWindows.Append(this);
 258 }
 259
 260 wxDialog::~wxDialog()
 261 {
 262     m_modalShowing = FALSE;
 263     if (!wxUSE_INVISIBLE_RESIZE && m_mainWidget)
 264     {
 265         XtUnmapWidget((Widget) m_mainWidget);
 266     }
 267
 268     wxTopLevelWindows.DeleteObject(this);
 269
 270     if ( (GetWindowStyleFlag() & wxDIALOG_MODAL) != wxDIALOG_MODAL )
 271         wxModelessWindows.DeleteObject(this);
 272
 273     // If this is the last top-level window, exit.
 274     if (wxTheApp && (wxTopLevelWindows.Number() == 0))
 275     {
 276         wxTheApp->SetTopWindow(NULL);
 277
 278         if (wxTheApp->GetExitOnFrameDelete())
 279         {
 280             wxTheApp->ExitMainLoop();
 281         }
 282     }
 283
 284     // This event-flushing code used to be in wxWindow::PostDestroyChildren (wx_dialog.cpp)
 285     // but I think this should work, if we destroy the children first.
 286     // Note that this might need to be done for wxFrame also.
 287     DestroyChildren();
 288
 289     // This causes a crash in e.g. the resource sample when closing
 290     // the example dialog. TODO: Probably not necessary (?)
 291 #if 0
 292     // Now process all events, because otherwise
 293     // this might remain on the screen.
 294     Display* display;
 295     if (m_mainWidget)
 296         display = XtDisplay((Widget) m_mainWidget);
 297     else
 298         display = (Display*) wxGetDisplay();
 299
 300     XSync(display, FALSE);
 301     XEvent event;
 302     while (XtAppPending((XtAppContext) wxTheApp->GetAppContext())) {
 303         XFlush(display);
 304         XtAppNextEvent((XtAppContext) wxTheApp->GetAppContext(), &event);
 305         XtDispatchEvent(&event);
 306     }
 307 #endif
 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 bool wxDialog::IsIconized() const
 335 {
 336 /*
 337 Boolean iconic;
 338 XtVaGetValues((Widget) m_mainWidget, XmNiconic, &iconic, NULL);
 339
 340   return iconic;
 341     */
 342     return FALSE;
 343 }
 344
 345 void wxDialog::SetSize(int x, int y, int width, int height, int sizeFlags)
 346 {
 347     XtVaSetValues((Widget) m_mainWidget, XmNresizePolicy, XmRESIZE_ANY, NULL);
 348     wxWindow::SetSize(x, y, width, height, sizeFlags);
 349     XtVaSetValues((Widget) m_mainWidget, XmNresizePolicy, XmRESIZE_NONE, NULL);
 350 }
 351
 352 void wxDialog::SetClientSize(int width, int height)
 353 {
 354     SetSize(-1, -1, width, height);
 355 }
 356
 357
 358 void wxDialog::SetTitle(const wxString& title)
 359 {
 360     m_dialogTitle = title;
 361     if (!title.IsNull())
 362     {
 363         XmString str = XmStringCreateSimple((char*) (const char*) title);
 364         XtVaSetValues((Widget) m_mainWidget,
 365             XmNtitle, (char*) (const char*) title,
 366             XmNdialogTitle, str, // Roberto Cocchi
 367             XmNiconName, (char*) (const char*) title,
 368             NULL);
 369         XmStringFree(str);
 370     }
 371 }
 372
 373 wxString wxDialog::GetTitle() const
 374 {
 375     return m_dialogTitle;
 376 }
 377
 378 void wxDialog::Centre(int direction)
 379 {
 380     int x_offset,y_offset ;
 381     int display_width, display_height;
 382     int  width, height, x, y;
 383     wxWindow *parent = GetParent();
 384     if ((direction & wxCENTER_FRAME) && parent)
 385     {
 386         parent->GetPosition(&x_offset,&y_offset) ;
 387         parent->GetSize(&display_width,&display_height) ;
 388     }
 389     else
 390     {
 391         wxDisplaySize(&display_width, &display_height);
 392         x_offset = 0 ;
 393         y_offset = 0 ;
 394     }
 395
 396     GetSize(&width, &height);
 397     GetPosition(&x, &y);
 398
 399     if (direction & wxHORIZONTAL)
 400         x = (int)((display_width - width)/2);
 401     if (direction & wxVERTICAL)
 402         y = (int)((display_height - height)/2);
 403
 404     SetSize(x+x_offset, y+y_offset, width, height);
 405 }
 406
 407 void wxDialog::Raise()
 408 {
 409     Window parent_window = XtWindow((Widget) m_mainWidget),
 410         next_parent   = XtWindow((Widget) m_mainWidget),
 411         root          = RootWindowOfScreen(XtScreen((Widget) m_mainWidget));
 412     // search for the parent that is child of ROOT, because the WM may
 413     // reparent twice and notify only the next parent (like FVWM)
 414     while (next_parent != root) {
 415         Window *theChildren; unsigned int n;
 416         parent_window = next_parent;
 417         XQueryTree(XtDisplay((Widget) m_mainWidget), parent_window, &root,
 418             &next_parent, &theChildren, &n);
 419         XFree(theChildren); // not needed
 420     }
 421     XRaiseWindow(XtDisplay((Widget) m_mainWidget), parent_window);
 422 }
 423
 424 void wxDialog::Lower()
 425 {
 426     Window parent_window = XtWindow((Widget) m_mainWidget),
 427         next_parent   = XtWindow((Widget) m_mainWidget),
 428         root          = RootWindowOfScreen(XtScreen((Widget) m_mainWidget));
 429     // search for the parent that is child of ROOT, because the WM may
 430     // reparent twice and notify only the next parent (like FVWM)
 431     while (next_parent != root) {
 432         Window *theChildren; unsigned int n;
 433         parent_window = next_parent;
 434         XQueryTree(XtDisplay((Widget) m_mainWidget), parent_window, &root,
 435             &next_parent, &theChildren, &n);
 436         XFree(theChildren); // not needed
 437     }
 438     XLowerWindow(XtDisplay((Widget) m_mainWidget), parent_window);
 439 }
 440
 441 bool wxDialog::Show(bool show)
 442 {
 443     m_isShown = show;
 444
 445     if (show)
 446     {
 447         if (!wxUSE_INVISIBLE_RESIZE)
 448             XtMapWidget(XtParent((Widget) m_mainWidget));
 449         else
 450             XtManageChild((Widget) m_mainWidget) ;
 451
 452         XRaiseWindow(XtDisplay((Widget) m_mainWidget), XtWindow((Widget) m_mainWidget));
 453
 454     }
 455     else
 456     {
 457         if (!wxUSE_INVISIBLE_RESIZE)
 458             XtUnmapWidget(XtParent((Widget) m_mainWidget));
 459         else
 460             XtUnmanageChild((Widget) m_mainWidget) ;
 461
 462         XFlush(XtDisplay((Widget) wxTheApp->GetTopLevelWidget()));
 463         XSync(XtDisplay((Widget) wxTheApp->GetTopLevelWidget()), FALSE);
 464     }
 465
 466     return TRUE;
 467 }
 468
 469 // Shows a dialog modally, returning a return code
 470 int wxDialog::ShowModal()
 471 {
 472     m_windowStyle |= wxDIALOG_MODAL;
 473
 474     Show(TRUE);
 475
 476     if (m_modalShowing)
 477         return 0;
 478
 479     wxModalShowingStack.Insert((wxObject *)TRUE);
 480
 481     m_modalShowing = TRUE;
 482     XtAddGrab((Widget) m_mainWidget, TRUE, FALSE);
 483
 484     XEvent event;
 485
 486     // Loop until we signal that the dialog should be closed
 487     while ((wxModalShowingStack.Number() > 0) && ((int)(wxModalShowingStack.First()->Data()) != 0))
 488     {
 489         //        XtAppProcessEvent((XtAppContext) wxTheApp->GetAppContext(), XtIMAll);
 490
 491         XtAppNextEvent((XtAppContext) wxTheApp->GetAppContext(), &event);
 492         wxTheApp->ProcessXEvent((WXEvent*) &event);
 493     }
 494
 495     // Remove modal dialog flag from stack
 496     wxNode *node = wxModalShowingStack.First();
 497     if (node)
 498         delete node;
 499
 500     // Now process all events in case they get sent to a destroyed dialog
 501     XSync(XtDisplay((Widget) wxTheApp->GetTopLevelWidget()), FALSE);
 502     while (XtAppPending((XtAppContext) wxTheApp->GetAppContext()))
 503     {
 504         XFlush(XtDisplay((Widget) wxTheApp->GetTopLevelWidget()));
 505         XtAppNextEvent((XtAppContext) wxTheApp->GetAppContext(), &event);
 506
 507         wxTheApp->ProcessXEvent((WXEvent*) &event);
 508     }
 509
 510     // TODO: is it safe to call this, if the dialog may have been deleted
 511     // by now? Probably only if we're using delayed deletion of dialogs.
 512     return GetReturnCode();
 513 }
 514
 515 void wxDialog::EndModal(int retCode)
 516 {
 517     if (!m_modalShowing)
 518         return;
 519
 520     SetReturnCode(retCode);
 521
 522     // Strangely, we don't seem to need this now.
 523     //    XtRemoveGrab((Widget) m_mainWidget);
 524
 525     Show(FALSE);
 526
 527     m_modalShowing = FALSE;
 528
 529     wxNode *node = wxModalShowingStack.First();
 530     if (node)
 531         node->SetData((wxObject *)FALSE);
 532 }
 533
 534 // Standard buttons
 535 void wxDialog::OnOK(wxCommandEvent& WXUNUSED(event))
 536 {
 537     if ( Validate() && TransferDataFromWindow() )
 538     {
 539         if ( IsModal() )
 540             EndModal(wxID_OK);
 541         else
 542         {
 543             SetReturnCode(wxID_OK);
 544             this->Show(FALSE);
 545         }
 546     }
 547 }
 548
 549 void wxDialog::OnApply(wxCommandEvent& WXUNUSED(event))
 550 {
 551     if (Validate())
 552         TransferDataFromWindow();
 553     // TODO probably need to disable the Apply button until things change again
 554 }
 555
 556 void wxDialog::OnCancel(wxCommandEvent& WXUNUSED(event))
 557 {
 558     if ( IsModal() )
 559         EndModal(wxID_CANCEL);
 560     else
 561     {
 562         SetReturnCode(wxID_CANCEL);
 563         this->Show(FALSE);
 564     }
 565 }
 566
 567 void wxDialog::OnCloseWindow(wxCloseEvent& event)
 568 {
 569     // We'll send a Cancel message by default,
 570     // which may close the dialog.
 571     // Check for looping if the Cancel event handler calls Close().
 572
 573     // Note that if a cancel button and handler aren't present in the dialog,
 574     // nothing will happen when you close the dialog via the window manager, or
 575     // via Close().
 576     // We wouldn't want to destroy the dialog by default, since the dialog may have been
 577     // created on the stack.
 578     // However, this does mean that calling dialog->Close() won't delete the dialog
 579     // unless the handler for wxID_CANCEL does so. So use Destroy() if you want to be
 580     // sure to destroy the dialog.
 581     // The default OnCancel (above) simply ends a modal dialog, and hides a modeless dialog.
 582
 583     static wxList closing;
 584
 585     if ( closing.Member(this) )
 586         return;
 587
 588     closing.Append(this);
 589
 590     wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
 591     cancelEvent.SetEventObject( this );
 592     GetEventHandler()->ProcessEvent(cancelEvent); // This may close the dialog
 593
 594     closing.DeleteObject(this);
 595 }
 596
 597 // Destroy the window (delayed, if a managed window)
 598 bool wxDialog::Destroy()
 599 {
 600     if (!wxPendingDelete.Member(this))
 601         wxPendingDelete.Append(this);
 602     return TRUE;
 603 }
 604
 605 void wxDialog::OnSysColourChanged(wxSysColourChangedEvent& WXUNUSED(event))
 606 {
 607     SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
 608     Refresh();
 609 }
 610
 611 void wxDialog::Fit()
 612 {
 613     wxWindow::Fit();
 614 }
 615
 616 // Handle a close event from the window manager
 617 static void wxCloseDialogCallback( Widget WXUNUSED(widget), XtPointer client_data,
 618                                   XmAnyCallbackStruct *WXUNUSED(cbs))
 619 {
 620     wxDialog *dialog = (wxDialog *)client_data;
 621     wxCloseEvent closeEvent(wxEVT_CLOSE_WINDOW, dialog->GetId());
 622     closeEvent.SetEventObject(dialog);
 623
 624     // May delete the dialog (with delayed deletion)
 625     dialog->GetEventHandler()->ProcessEvent(closeEvent);
 626 }
 627
 628 // TODO: Preferably, we should have a universal repaint proc.
 629 // Meanwhile, use a special one for dialogs.
 630 static void wxDialogBoxRepaintProc(Widget w, XtPointer WXUNUSED(c_data), XEvent *event, char *)
 631 {
 632     Window window;
 633     Display *display;
 634
 635     wxWindow* win = (wxWindow *)wxWidgetHashTable->Get((long)w);
 636     if (!win)
 637         return;
 638
 639     switch(event -> type)
 640     {
 641     case Expose :
 642         {
 643             window = (Window) win -> GetXWindow();
 644             display = (Display *) win -> GetXDisplay();
 645
 646             wxRect* rect = new wxRect(event->xexpose.x, event->xexpose.y,
 647                 event->xexpose.width, event->xexpose.height);
 648             win->m_updateRects.Append((wxObject*) rect);
 649
 650             if (event -> xexpose.count == 0)
 651             {
 652                 win->DoPaint();
 653
 654                 win->ClearUpdateRects();
 655             }
 656             break;
 657         }
 658     default :
 659         {
 660             cout << "\n\nNew Event ! is = " << event -> type << "\n";
 661             break;
 662         }
 663     }
 664 }
 665
 666 static void wxDialogBoxEventHandler (Widget    wid,
 667                                      XtPointer WXUNUSED(client_data),
 668                                      XEvent*   event,
 669                                      Boolean *continueToDispatch)
 670 {
 671     wxDialog *dialog = (wxDialog *)wxWidgetHashTable->Get((long)wid);
 672     if (dialog)
 673     {
 674         wxMouseEvent wxevent(wxEVT_NULL);
 675         if (wxTranslateMouseEvent(wxevent, dialog, wid, event))
 676         {
 677             wxevent.SetEventObject(dialog);
 678             wxevent.SetId(dialog->GetId());
 679             dialog->GetEventHandler()->ProcessEvent(wxevent);
 680         }
 681         else
 682         {
 683             // An attempt to implement OnCharHook by calling OnCharHook first;
 684             // if this returns TRUE, set continueToDispatch to False
 685             // (don't continue processing).
 686             // Otherwise set it to True and call OnChar.
 687             wxKeyEvent keyEvent(wxEVT_CHAR);
 688             if (wxTranslateKeyEvent(keyEvent, dialog, wid, event))
 689             {
 690                 keyEvent.SetEventObject(dialog);
 691                 keyEvent.SetId(dialog->GetId());
 692                 keyEvent.SetEventType(wxEVT_CHAR_HOOK);
 693                 if (dialog->GetEventHandler()->ProcessEvent(keyEvent))
 694                 {
 695                     *continueToDispatch = False;
 696                     return;
 697                 }
 698                 else
 699                 {
 700                     // For simplicity, OnKeyDown is the same as OnChar
 701                     // TODO: filter modifier key presses from OnChar
 702                     keyEvent.SetEventType(wxEVT_KEY_DOWN);
 703
 704                     // Only process OnChar if OnKeyDown didn't swallow it
 705                     if (!dialog->GetEventHandler()->ProcessEvent (keyEvent))
 706                     {
 707                         keyEvent.SetEventType(wxEVT_CHAR);
 708                         dialog->GetEventHandler()->ProcessEvent(keyEvent);
 709                     }
 710                 }
 711             }
 712         }
 713     }
 714     *continueToDispatch = True;
 715 }
 716
 717 static void wxUnmapBulletinBoard(Widget WXUNUSED(dialog), wxDialog *WXUNUSED(client), XtPointer WXUNUSED(call) )
 718 {
 719 /* This gets called when the dialog is being shown, which
 720 * defeats modal showing.
 721 client->m_modalShowing = FALSE ;
 722 client->m_isShown = FALSE;
 723     */
 724 }
 725
 726 void wxDialog::ChangeFont(bool keepOriginalSize)
 727 {
 728     wxWindow::ChangeFont(keepOriginalSize);
 729 }
 730
 731 void wxDialog::ChangeBackgroundColour()
 732 {
 733     if (GetMainWidget())
 734         DoChangeBackgroundColour(GetMainWidget(), m_backgroundColour);
 735 }
 736
 737 void wxDialog::ChangeForegroundColour()
 738 {
 739     if (GetMainWidget())
 740         DoChangeForegroundColour(GetMainWidget(), m_foregroundColour);
 741 }
 742