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     // The idea about doing it here is that if you have to remove the
 290     // XtDestroyWidget from ~wxWindow, at least top-level windows
 291     // will still be deleted (and destroy children implicitly).
 292     if (GetMainWidget())
 293     {
 294       DetachWidget(GetMainWidget()); // Removes event handlers
 295       XtDestroyWidget((Widget) GetMainWidget());
 296       SetMainWidget((WXWidget) NULL);
 297     }
 298 }
 299
 300 // By default, pressing escape cancels the dialog
 301 void wxDialog::OnCharHook(wxKeyEvent& event)
 302 {
 303     if (event.m_keyCode == WXK_ESCAPE)
 304     {
 305         // Behaviour changed in 2.0: we'll send a Cancel message
 306         // to the dialog instead of Close.
 307         wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
 308         cancelEvent.SetEventObject( this );
 309         GetEventHandler()->ProcessEvent(cancelEvent);
 310
 311         return;
 312     }
 313     // We didn't process this event.
 314     event.Skip();
 315 }
 316
 317 void wxDialog::Iconize(bool WXUNUSED(iconize))
 318 {
 319     // Can't iconize a dialog in Motif, apparently
 320     // TODO: try using the parent of m_mainShell.
 321     //  XtVaSetValues((Widget) m_mainWidget, XmNiconic, iconize, NULL);
 322 }
 323
 324 bool wxDialog::IsIconized() const
 325 {
 326 /*
 327 Boolean iconic;
 328 XtVaGetValues((Widget) m_mainWidget, XmNiconic, &iconic, NULL);
 329
 330   return iconic;
 331     */
 332     return FALSE;
 333 }
 334
 335 void wxDialog::SetSize(int x, int y, int width, int height, int sizeFlags)
 336 {
 337     XtVaSetValues((Widget) m_mainWidget, XmNresizePolicy, XmRESIZE_ANY, NULL);
 338     wxWindow::SetSize(x, y, width, height, sizeFlags);
 339     XtVaSetValues((Widget) m_mainWidget, XmNresizePolicy, XmRESIZE_NONE, NULL);
 340 }
 341
 342 void wxDialog::SetClientSize(int width, int height)
 343 {
 344     SetSize(-1, -1, width, height);
 345 }
 346
 347
 348 void wxDialog::SetTitle(const wxString& title)
 349 {
 350     m_dialogTitle = title;
 351     if (!title.IsNull())
 352     {
 353         XmString str = XmStringCreateSimple((char*) (const char*) title);
 354         XtVaSetValues((Widget) m_mainWidget,
 355             XmNtitle, (char*) (const char*) title,
 356             XmNdialogTitle, str, // Roberto Cocchi
 357             XmNiconName, (char*) (const char*) title,
 358             NULL);
 359         XmStringFree(str);
 360     }
 361 }
 362
 363 wxString wxDialog::GetTitle() const
 364 {
 365     return m_dialogTitle;
 366 }
 367
 368 void wxDialog::Centre(int direction)
 369 {
 370     int x_offset,y_offset ;
 371     int display_width, display_height;
 372     int  width, height, x, y;
 373     wxWindow *parent = GetParent();
 374     if ((direction & wxCENTER_FRAME) && parent)
 375     {
 376         parent->GetPosition(&x_offset,&y_offset) ;
 377         parent->GetSize(&display_width,&display_height) ;
 378     }
 379     else
 380     {
 381         wxDisplaySize(&display_width, &display_height);
 382         x_offset = 0 ;
 383         y_offset = 0 ;
 384     }
 385
 386     GetSize(&width, &height);
 387     GetPosition(&x, &y);
 388
 389     if (direction & wxHORIZONTAL)
 390         x = (int)((display_width - width)/2);
 391     if (direction & wxVERTICAL)
 392         y = (int)((display_height - height)/2);
 393
 394     SetSize(x+x_offset, y+y_offset, width, height);
 395 }
 396
 397 void wxDialog::Raise()
 398 {
 399     Window parent_window = XtWindow((Widget) m_mainWidget),
 400         next_parent   = XtWindow((Widget) m_mainWidget),
 401         root          = RootWindowOfScreen(XtScreen((Widget) m_mainWidget));
 402     // search for the parent that is child of ROOT, because the WM may
 403     // reparent twice and notify only the next parent (like FVWM)
 404     while (next_parent != root) {
 405         Window *theChildren; unsigned int n;
 406         parent_window = next_parent;
 407         XQueryTree(XtDisplay((Widget) m_mainWidget), parent_window, &root,
 408             &next_parent, &theChildren, &n);
 409         XFree(theChildren); // not needed
 410     }
 411     XRaiseWindow(XtDisplay((Widget) m_mainWidget), parent_window);
 412 }
 413
 414 void wxDialog::Lower()
 415 {
 416     Window parent_window = XtWindow((Widget) m_mainWidget),
 417         next_parent   = XtWindow((Widget) m_mainWidget),
 418         root          = RootWindowOfScreen(XtScreen((Widget) m_mainWidget));
 419     // search for the parent that is child of ROOT, because the WM may
 420     // reparent twice and notify only the next parent (like FVWM)
 421     while (next_parent != root) {
 422         Window *theChildren; unsigned int n;
 423         parent_window = next_parent;
 424         XQueryTree(XtDisplay((Widget) m_mainWidget), parent_window, &root,
 425             &next_parent, &theChildren, &n);
 426         XFree(theChildren); // not needed
 427     }
 428     XLowerWindow(XtDisplay((Widget) m_mainWidget), parent_window);
 429 }
 430
 431 bool wxDialog::Show(bool show)
 432 {
 433     m_isShown = show;
 434
 435     if (show)
 436     {
 437         if (!wxUSE_INVISIBLE_RESIZE)
 438             XtMapWidget(XtParent((Widget) m_mainWidget));
 439         else
 440             XtManageChild((Widget) m_mainWidget) ;
 441
 442         XRaiseWindow(XtDisplay((Widget) m_mainWidget), XtWindow((Widget) m_mainWidget));
 443
 444     }
 445     else
 446     {
 447         if (!wxUSE_INVISIBLE_RESIZE)
 448             XtUnmapWidget(XtParent((Widget) m_mainWidget));
 449         else
 450             XtUnmanageChild((Widget) m_mainWidget) ;
 451
 452         XFlush(XtDisplay((Widget) wxTheApp->GetTopLevelWidget()));
 453         XSync(XtDisplay((Widget) wxTheApp->GetTopLevelWidget()), FALSE);
 454     }
 455
 456     return TRUE;
 457 }
 458
 459 // Shows a dialog modally, returning a return code
 460 int wxDialog::ShowModal()
 461 {
 462     m_windowStyle |= wxDIALOG_MODAL;
 463
 464     Show(TRUE);
 465
 466     if (m_modalShowing)
 467         return 0;
 468
 469     wxModalShowingStack.Insert((wxObject *)TRUE);
 470
 471     m_modalShowing = TRUE;
 472     XtAddGrab((Widget) m_mainWidget, TRUE, FALSE);
 473
 474     XEvent event;
 475
 476     // Loop until we signal that the dialog should be closed
 477     while ((wxModalShowingStack.Number() > 0) && ((int)(wxModalShowingStack.First()->Data()) != 0))
 478     {
 479         //        XtAppProcessEvent((XtAppContext) wxTheApp->GetAppContext(), XtIMAll);
 480
 481         XtAppNextEvent((XtAppContext) wxTheApp->GetAppContext(), &event);
 482         wxTheApp->ProcessXEvent((WXEvent*) &event);
 483     }
 484
 485     // Remove modal dialog flag from stack
 486     wxNode *node = wxModalShowingStack.First();
 487     if (node)
 488         delete node;
 489
 490     // Now process all events in case they get sent to a destroyed dialog
 491     XSync(XtDisplay((Widget) wxTheApp->GetTopLevelWidget()), FALSE);
 492     while (XtAppPending((XtAppContext) wxTheApp->GetAppContext()))
 493     {
 494         XFlush(XtDisplay((Widget) wxTheApp->GetTopLevelWidget()));
 495         XtAppNextEvent((XtAppContext) wxTheApp->GetAppContext(), &event);
 496
 497         wxTheApp->ProcessXEvent((WXEvent*) &event);
 498     }
 499
 500     // TODO: is it safe to call this, if the dialog may have been deleted
 501     // by now? Probably only if we're using delayed deletion of dialogs.
 502     return GetReturnCode();
 503 }
 504
 505 void wxDialog::EndModal(int retCode)
 506 {
 507     if (!m_modalShowing)
 508         return;
 509
 510     SetReturnCode(retCode);
 511
 512     // Strangely, we don't seem to need this now.
 513     //    XtRemoveGrab((Widget) m_mainWidget);
 514
 515     Show(FALSE);
 516
 517     m_modalShowing = FALSE;
 518
 519     wxNode *node = wxModalShowingStack.First();
 520     if (node)
 521         node->SetData((wxObject *)FALSE);
 522 }
 523
 524 // Standard buttons
 525 void wxDialog::OnOK(wxCommandEvent& WXUNUSED(event))
 526 {
 527     if ( Validate() && TransferDataFromWindow() )
 528     {
 529         if ( IsModal() )
 530             EndModal(wxID_OK);
 531         else
 532         {
 533             SetReturnCode(wxID_OK);
 534             this->Show(FALSE);
 535         }
 536     }
 537 }
 538
 539 void wxDialog::OnApply(wxCommandEvent& WXUNUSED(event))
 540 {
 541     if (Validate())
 542         TransferDataFromWindow();
 543     // TODO probably need to disable the Apply button until things change again
 544 }
 545
 546 void wxDialog::OnCancel(wxCommandEvent& WXUNUSED(event))
 547 {
 548     if ( IsModal() )
 549         EndModal(wxID_CANCEL);
 550     else
 551     {
 552         SetReturnCode(wxID_CANCEL);
 553         this->Show(FALSE);
 554     }
 555 }
 556
 557 void wxDialog::OnCloseWindow(wxCloseEvent& event)
 558 {
 559     // We'll send a Cancel message by default,
 560     // which may close the dialog.
 561     // Check for looping if the Cancel event handler calls Close().
 562
 563     // Note that if a cancel button and handler aren't present in the dialog,
 564     // nothing will happen when you close the dialog via the window manager, or
 565     // via Close().
 566     // We wouldn't want to destroy the dialog by default, since the dialog may have been
 567     // created on the stack.
 568     // However, this does mean that calling dialog->Close() won't delete the dialog
 569     // unless the handler for wxID_CANCEL does so. So use Destroy() if you want to be
 570     // sure to destroy the dialog.
 571     // The default OnCancel (above) simply ends a modal dialog, and hides a modeless dialog.
 572
 573     static wxList closing;
 574
 575     if ( closing.Member(this) )
 576         return;
 577
 578     closing.Append(this);
 579
 580     wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
 581     cancelEvent.SetEventObject( this );
 582     GetEventHandler()->ProcessEvent(cancelEvent); // This may close the dialog
 583
 584     closing.DeleteObject(this);
 585 }
 586
 587 // Destroy the window (delayed, if a managed window)
 588 bool wxDialog::Destroy()
 589 {
 590     if (!wxPendingDelete.Member(this))
 591         wxPendingDelete.Append(this);
 592     return TRUE;
 593 }
 594
 595 void wxDialog::OnSysColourChanged(wxSysColourChangedEvent& WXUNUSED(event))
 596 {
 597     SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
 598     Refresh();
 599 }
 600
 601 void wxDialog::Fit()
 602 {
 603     wxWindow::Fit();
 604 }
 605
 606 // Handle a close event from the window manager
 607 static void wxCloseDialogCallback( Widget WXUNUSED(widget), XtPointer client_data,
 608                                   XmAnyCallbackStruct *WXUNUSED(cbs))
 609 {
 610     wxDialog *dialog = (wxDialog *)client_data;
 611     wxCloseEvent closeEvent(wxEVT_CLOSE_WINDOW, dialog->GetId());
 612     closeEvent.SetEventObject(dialog);
 613
 614     // May delete the dialog (with delayed deletion)
 615     dialog->GetEventHandler()->ProcessEvent(closeEvent);
 616 }
 617
 618 // TODO: Preferably, we should have a universal repaint proc.
 619 // Meanwhile, use a special one for dialogs.
 620 static void wxDialogBoxRepaintProc(Widget w, XtPointer WXUNUSED(c_data), XEvent *event, char *)
 621 {
 622     Window window;
 623     Display *display;
 624
 625     wxWindow* win = (wxWindow *)wxWidgetHashTable->Get((long)w);
 626     if (!win)
 627         return;
 628
 629     switch(event -> type)
 630     {
 631     case Expose :
 632         {
 633             window = (Window) win -> GetXWindow();
 634             display = (Display *) win -> GetXDisplay();
 635
 636             wxRect* rect = new wxRect(event->xexpose.x, event->xexpose.y,
 637                 event->xexpose.width, event->xexpose.height);
 638             win->m_updateRects.Append((wxObject*) rect);
 639
 640             if (event -> xexpose.count == 0)
 641             {
 642                 win->DoPaint();
 643
 644                 win->ClearUpdateRects();
 645             }
 646             break;
 647         }
 648     default :
 649         {
 650             cout << "\n\nNew Event ! is = " << event -> type << "\n";
 651             break;
 652         }
 653     }
 654 }
 655
 656 static void wxDialogBoxEventHandler (Widget    wid,
 657                                      XtPointer WXUNUSED(client_data),
 658                                      XEvent*   event,
 659                                      Boolean *continueToDispatch)
 660 {
 661     wxDialog *dialog = (wxDialog *)wxWidgetHashTable->Get((long)wid);
 662     if (dialog)
 663     {
 664         wxMouseEvent wxevent(wxEVT_NULL);
 665         if (wxTranslateMouseEvent(wxevent, dialog, wid, event))
 666         {
 667             wxevent.SetEventObject(dialog);
 668             wxevent.SetId(dialog->GetId());
 669             dialog->GetEventHandler()->ProcessEvent(wxevent);
 670         }
 671         else
 672         {
 673             // An attempt to implement OnCharHook by calling OnCharHook first;
 674             // if this returns TRUE, set continueToDispatch to False
 675             // (don't continue processing).
 676             // Otherwise set it to True and call OnChar.
 677             wxKeyEvent keyEvent(wxEVT_CHAR);
 678             if (wxTranslateKeyEvent(keyEvent, dialog, wid, event))
 679             {
 680                 keyEvent.SetEventObject(dialog);
 681                 keyEvent.SetId(dialog->GetId());
 682                 keyEvent.SetEventType(wxEVT_CHAR_HOOK);
 683                 if (dialog->GetEventHandler()->ProcessEvent(keyEvent))
 684                 {
 685                     *continueToDispatch = False;
 686                     return;
 687                 }
 688                 else
 689                 {
 690                     // For simplicity, OnKeyDown is the same as OnChar
 691                     // TODO: filter modifier key presses from OnChar
 692                     keyEvent.SetEventType(wxEVT_KEY_DOWN);
 693
 694                     // Only process OnChar if OnKeyDown didn't swallow it
 695                     if (!dialog->GetEventHandler()->ProcessEvent (keyEvent))
 696                     {
 697                         keyEvent.SetEventType(wxEVT_CHAR);
 698                         dialog->GetEventHandler()->ProcessEvent(keyEvent);
 699                     }
 700                 }
 701             }
 702         }
 703     }
 704     *continueToDispatch = True;
 705 }
 706
 707 static void wxUnmapBulletinBoard(Widget WXUNUSED(dialog), wxDialog *WXUNUSED(client), XtPointer WXUNUSED(call) )
 708 {
 709 /* This gets called when the dialog is being shown, which
 710 * defeats modal showing.
 711 client->m_modalShowing = FALSE ;
 712 client->m_isShown = FALSE;
 713     */
 714 }
 715
 716 void wxDialog::ChangeFont(bool keepOriginalSize)
 717 {
 718     wxWindow::ChangeFont(keepOriginalSize);
 719 }
 720
 721 void wxDialog::ChangeBackgroundColour()
 722 {
 723     if (GetMainWidget())
 724         DoChangeBackgroundColour(GetMainWidget(), m_backgroundColour);
 725 }
 726
 727 void wxDialog::ChangeForegroundColour()
 728 {
 729     if (GetMainWidget())
 730         DoChangeForegroundColour(GetMainWidget(), m_foregroundColour);
 731 }
 732