Added dialog tabbing to wxX11.

[wxWidgets.git] / src / motif / dialog.cpp

diff --git a/src/motif/dialog.cpp b/src/motif/dialog.cpp
index d8bce29403eea14afe1f224decfca170ab401f60..19a321cc023f3e6d532be0ed384c88f3a3ce7a10 100644 (file)
--- a/src/motif/dialog.cpp
+++ b/src/motif/dialog.cpp
@@ -6,29 +6,79 @@
 // Created:     17/09/98
 // RCS-ID:      $Id$
 // Copyright:   (c) Julian Smart
 // Created:     17/09/98
 // RCS-ID:      $Id$
 // Copyright:   (c) Julian Smart

-// Licence:    wxWindows licence
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 #ifdef __GNUG__
 #pragma implementation "dialog.h"
 #endif
 
 /////////////////////////////////////////////////////////////////////////////
 
 #ifdef __GNUG__
 #pragma implementation "dialog.h"
 #endif
 

+#ifdef __VMS
+#define XtDisplay XTDISPLAY
+#define XtWindow XTWINDOW
+#define XtParent XTPARENT
+#define XtScreen XTSCREEN
+#endif
+

 #include "wx/dialog.h"
 #include "wx/utils.h"
 #include "wx/frame.h"
 #include "wx/app.h"
 #include "wx/settings.h"
 
 #include "wx/dialog.h"
 #include "wx/utils.h"
 #include "wx/frame.h"
 #include "wx/app.h"
 #include "wx/settings.h"
 

+#ifdef __VMS__
+#pragma message disable nosimpint
+#endif
+#include <Xm/Xm.h>
+
+#include <X11/Shell.h>
+#if XmVersion >= 1002
+#include <Xm/XmAll.h>
+#endif
+#include <Xm/MwmUtil.h>
+#include <Xm/Label.h>
+#include <Xm/BulletinB.h>
+#include <Xm/Frame.h>
+#include <Xm/Text.h>
+#include <Xm/DialogS.h>
+#include <Xm/FileSB.h>
+#include <Xm/RowColumn.h>
+#include <Xm/LabelG.h>
+#include <Xm/AtomMgr.h>
+#if   XmVersion > 1000
+#include <Xm/Protocols.h>
+#endif
+#ifdef __VMS__
+#pragma message enable nosimpint
+#endif
+
+#include "wx/motif/private.h"
+
+static void wxCloseDialogCallback(Widget widget, XtPointer client_data, XmAnyCallbackStruct *cbs);
+static void wxDialogBoxEventHandler (Widget    wid,
+                                     XtPointer client_data,
+                                     XEvent*   event,
+                                     Boolean *continueToDispatch);
+
+static void wxUnmapBulletinBoard(Widget dialog, wxDialog *client,XtPointer call);
+
+// A stack of modal_showing flags, since we can't rely
+// on accessing wxDialog::m_modalShowing within
+// wxDialog::Show in case a callback has deleted the wxDialog.
+static wxList wxModalShowingStack;
+

 // Lists to keep track of windows, so we can disable/enable them
 // for modal dialogs
 wxList wxModalDialogs;
 wxList wxModelessWindows;  // Frames and modeless dialogs
 extern wxList wxPendingDelete;
 
 // Lists to keep track of windows, so we can disable/enable them
 // for modal dialogs
 wxList wxModalDialogs;
 wxList wxModelessWindows;  // Frames and modeless dialogs
 extern wxList wxPendingDelete;
 

-#if !USE_SHARED_LIBRARY
+#define wxUSE_INVISIBLE_RESIZE 1
+

 IMPLEMENT_DYNAMIC_CLASS(wxDialog, wxPanel)
 
 BEGIN_EVENT_TABLE(wxDialog, wxPanel)
 IMPLEMENT_DYNAMIC_CLASS(wxDialog, wxPanel)
 
 BEGIN_EVENT_TABLE(wxDialog, wxPanel)

+  EVT_SIZE(wxDialog::OnSize)

   EVT_BUTTON(wxID_OK, wxDialog::OnOK)
   EVT_BUTTON(wxID_APPLY, wxDialog::OnApply)
   EVT_BUTTON(wxID_CANCEL, wxDialog::OnCancel)
   EVT_BUTTON(wxID_OK, wxDialog::OnOK)
   EVT_BUTTON(wxID_APPLY, wxDialog::OnApply)
   EVT_BUTTON(wxID_CANCEL, wxDialog::OnCancel)


@@ -37,258 +87,648 @@ BEGIN_EVENT_TABLE(wxDialog, wxPanel)
   EVT_CLOSE(wxDialog::OnCloseWindow)
 END_EVENT_TABLE()
 
   EVT_CLOSE(wxDialog::OnCloseWindow)
 END_EVENT_TABLE()
 

-#endif

 
 wxDialog::wxDialog()
 {
 
 wxDialog::wxDialog()
 {

-    SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
+    m_modalShowing = FALSE;
+    m_backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);

 }
 
 bool wxDialog::Create(wxWindow *parent, wxWindowID id,
 }
 
 bool wxDialog::Create(wxWindow *parent, wxWindowID id,

-           const wxString& title,
-           const wxPoint& pos,
-           const wxSize& size,
-           long style,
-           const wxString& name)
+                      const wxString& title,
+                      const wxPoint& pos,
+                      const wxSize& size,
+                      long style,
+                      const wxString& name)

 {
 {

-  m_windowStyle = style;
+    m_windowStyle = style;
+    m_modalShowing = FALSE;
+    m_dialogTitle = title;
+
+    m_backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
+    m_foregroundColour = *wxBLACK;
+
+    SetName(name);
+
+    if (!parent)
+        wxTopLevelWindows.Append(this);
+
+    if (parent) parent->AddChild(this);
+
+    if ( id == -1 )
+        m_windowId = (int)NewControlId();
+    else
+        m_windowId = id;
+
+    Widget parentWidget = (Widget) 0;
+    if (parent)
+        parentWidget = (Widget) parent->GetTopWidget();
+    if (!parent)
+        parentWidget = (Widget) wxTheApp->GetTopLevelWidget();
+
+    wxASSERT_MSG( (parentWidget != (Widget) 0), "Could not find a suitable parent shell for dialog." );
+
+    Arg args[2];
+    XtSetArg (args[0], XmNdefaultPosition, False);
+    XtSetArg (args[1], XmNautoUnmanage, False);
+    Widget dialogShell = XmCreateBulletinBoardDialog(parentWidget, (char*) (const char*) name, args, 2);
+    m_mainWidget = (WXWidget) dialogShell;
+
+    // We don't want margins, since there is enough elsewhere.
+    XtVaSetValues(dialogShell,
+        XmNmarginHeight,   0,
+        XmNmarginWidth,    0,
+        XmNresizePolicy, XmRESIZE_NONE,
+        NULL) ;
+
+    Widget shell = XtParent(dialogShell) ;
+    if (!title.IsNull())
+    {
+        XmString str = XmStringCreateSimple((char*) (const char*)title);
+        XtVaSetValues(dialogShell,
+            XmNdialogTitle, str,
+            NULL);
+        XmStringFree(str);
+    }
+
+    m_font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
+    ChangeFont(FALSE);
+
+    wxAddWindowToTable(dialogShell, this);
+
+    // Intercept CLOSE messages from the window manager
+    Atom WM_DELETE_WINDOW = XmInternAtom(XtDisplay(shell), "WM_DELETE_WINDOW", False);
+
+    /* Remove and add WM_DELETE_WINDOW so ours is only handler */
+    /* Why do we have to do this for wxDialog, but not wxFrame? */
+    XmRemoveWMProtocols(shell, &WM_DELETE_WINDOW, 1);
+    XmAddWMProtocols(shell, &WM_DELETE_WINDOW, 1);
+    XmActivateWMProtocol(shell, WM_DELETE_WINDOW);
+
+    // Modified Steve Hammes for Motif 2.0
+#if (XmREVISION > 1 || XmVERSION > 1)
+    XmAddWMProtocolCallback(shell, WM_DELETE_WINDOW, (XtCallbackProc) wxCloseDialogCallback, (XtPointer)this);
+#elif XmREVISION == 1
+    XmAddWMProtocolCallback(shell, WM_DELETE_WINDOW, (XtCallbackProc) wxCloseDialogCallback, (caddr_t)this);
+#else
+    XmAddWMProtocolCallback(shell, WM_DELETE_WINDOW, (void (*)())wxCloseDialogCallback, (caddr_t)this);
+#endif
+
+    XtTranslations ptr ;
+    XtOverrideTranslations(dialogShell,
+        ptr = XtParseTranslationTable("<Configure>: resize()"));
+    XtFree((char *)ptr);
+
+    // Can't remember what this was about... but I think it's necessary.
+
+    if (wxUSE_INVISIBLE_RESIZE)
+    {
+        if (pos.x > -1)
+            XtVaSetValues(dialogShell, XmNx, pos.x,
+            NULL);
+        if (pos.y > -1)
+            XtVaSetValues(dialogShell, XmNy, pos.y,
+            NULL);
+
+        if (size.x > -1)
+            XtVaSetValues(dialogShell, XmNwidth, size.x, NULL);
+        if (size.y > -1)
+            XtVaSetValues(dialogShell, XmNheight, size.y, NULL);
+    }
+
+    // This patch come from Torsten Liermann lier@lier1.muc.de
+    if (XmIsMotifWMRunning(shell))
+    {
+        int decor = 0 ;
+        if (m_windowStyle & wxRESIZE_BORDER)
+            decor |= MWM_DECOR_RESIZEH ;
+        if (m_windowStyle & wxSYSTEM_MENU)
+            decor |= MWM_DECOR_MENU;
+        if ((m_windowStyle & wxCAPTION) ||
+            (m_windowStyle & wxTINY_CAPTION_HORIZ) ||
+            (m_windowStyle & wxTINY_CAPTION_VERT))
+            decor |= MWM_DECOR_TITLE;
+        if (m_windowStyle & wxTHICK_FRAME)
+            decor |= MWM_DECOR_BORDER;
+        if (m_windowStyle & wxMINIMIZE_BOX)
+            decor |= MWM_DECOR_MINIMIZE;
+        if (m_windowStyle & wxMAXIMIZE_BOX)
+            decor |= MWM_DECOR_MAXIMIZE;
+
+        XtVaSetValues(shell,XmNmwmDecorations,decor,NULL) ;
+    }
+    // This allows non-Motif window managers to support at least the
+    // no-decorations case.
+    else
+    {
+        if ((m_windowStyle & wxCAPTION) != wxCAPTION)
+            XtVaSetValues((Widget) shell,XmNoverrideRedirect,TRUE,NULL);
+    }
+
+    XtRealizeWidget(dialogShell);

 
 

-  SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
-  SetName(name);
-  
-  if (!parent)
-    wxTopLevelWindows.Append(this);
+    XtAddCallback(dialogShell,XmNunmapCallback,
+        (XtCallbackProc)wxUnmapBulletinBoard,this) ;

 
 

-  if (parent) parent->AddChild(this);
+    // Positioning of the dialog doesn't work properly unless the dialog
+    // is managed, so we manage without mapping to the screen.
+    // To show, we map the shell (actually it's parent).
+    if (!wxUSE_INVISIBLE_RESIZE)
+        XtVaSetValues(shell, XmNmappedWhenManaged, FALSE, NULL);
+
+    if (!wxUSE_INVISIBLE_RESIZE)
+    {
+        XtManageChild(dialogShell);
+        SetSize(pos.x, pos.y, size.x, size.y);
+    }
+    XtAddEventHandler(dialogShell,ExposureMask,FALSE,
+        wxUniversalRepaintProc, (XtPointer) this);

 
 

-  if ( id == -1 )
-       m_windowId = (int)NewControlId();
-  else
-       m_windowId = id;
+    XtAddEventHandler(dialogShell,
+        ButtonPressMask | ButtonReleaseMask | PointerMotionMask | KeyPressMask,
+        FALSE,
+        wxDialogBoxEventHandler,
+        (XtPointer)this);

 
 

-  // TODO: create dialog
+    ChangeBackgroundColour();

 
 

-  return FALSE;
+    return TRUE;

 }
 
 void wxDialog::SetModal(bool flag)
 {
 }
 
 void wxDialog::SetModal(bool flag)
 {

-       if ( flag )
-               m_windowStyle |= wxDIALOG_MODAL ;
-       else
-               if ( m_windowStyle & wxDIALOG_MODAL )
-                       m_windowStyle -= wxDIALOG_MODAL ;
-  
-  wxModelessWindows.DeleteObject(this);
-  if (!flag)
-    wxModelessWindows.Append(this);
+    if ( flag )
+        m_windowStyle |= wxDIALOG_MODAL ;
+    else
+        if ( m_windowStyle & wxDIALOG_MODAL )
+            m_windowStyle -= wxDIALOG_MODAL ;
+
+        wxModelessWindows.DeleteObject(this);
+        if (!flag)
+            wxModelessWindows.Append(this);

 }
 
 wxDialog::~wxDialog()
 {
 }
 
 wxDialog::~wxDialog()
 {

-    // TODO
+    m_isBeingDeleted = TRUE;
+    
+    if (m_mainWidget)
+      XtRemoveEventHandler((Widget) m_mainWidget, ExposureMask, FALSE,
+          wxUniversalRepaintProc, (XtPointer) this);
+
+    m_modalShowing = FALSE;
+    if (!wxUSE_INVISIBLE_RESIZE && m_mainWidget)
+    {
+        XtUnmapWidget((Widget) m_mainWidget);
+    }
+

     wxTopLevelWindows.DeleteObject(this);
 
     if ( (GetWindowStyleFlag() & wxDIALOG_MODAL) != wxDIALOG_MODAL )
     wxTopLevelWindows.DeleteObject(this);
 
     if ( (GetWindowStyleFlag() & wxDIALOG_MODAL) != wxDIALOG_MODAL )

-      wxModelessWindows.DeleteObject(this);
+        wxModelessWindows.DeleteObject(this);

 
     // If this is the last top-level window, exit.
     if (wxTheApp && (wxTopLevelWindows.Number() == 0))
     {
 
     // If this is the last top-level window, exit.
     if (wxTheApp && (wxTopLevelWindows.Number() == 0))
     {

-      wxTheApp->SetTopWindow(NULL);
+        wxTheApp->SetTopWindow(NULL);

 
 

-      if (wxTheApp->GetExitOnFrameDelete())
-      {
-         // TODO: exit
-      }
+        if (wxTheApp->GetExitOnFrameDelete())
+        {
+            wxTheApp->ExitMainLoop();
+        }
+    }
+
+    // This event-flushing code used to be in wxWindow::PostDestroyChildren (wx_dialog.cpp)
+    // but I think this should work, if we destroy the children first.
+    // Note that this might need to be done for wxFrame also.
+    DestroyChildren();
+
+    // The idea about doing it here is that if you have to remove the
+    // XtDestroyWidget from ~wxWindow, at least top-level windows
+    // will still be deleted (and destroy children implicitly).
+    if (GetMainWidget())
+    {
+      DetachWidget(GetMainWidget()); // Removes event handlers
+      XtDestroyWidget((Widget) GetMainWidget());
+      SetMainWidget((WXWidget) NULL);

     }
 }
 
 // By default, pressing escape cancels the dialog
 void wxDialog::OnCharHook(wxKeyEvent& event)
 {
     }
 }
 
 // By default, pressing escape cancels the dialog
 void wxDialog::OnCharHook(wxKeyEvent& event)
 {

-  if (event.m_keyCode == WXK_ESCAPE)
-  {
-               // Behaviour changed in 2.0: we'll send a Cancel message
-               // to the dialog instead of Close.
-               wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
-               cancelEvent.SetEventObject( this );
-               GetEventHandler()->ProcessEvent(cancelEvent);
-
-               return;
-  }
-  // We didn't process this event.
-  event.Skip();
+    if (event.m_keyCode == WXK_ESCAPE)
+    {
+        // Behaviour changed in 2.0: we'll send a Cancel message
+        // to the dialog instead of Close.
+        wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
+        cancelEvent.SetEventObject( this );
+        GetEventHandler()->ProcessEvent(cancelEvent);
+
+        return;
+    }
+    // We didn't process this event.
+    event.Skip();

 }
 
 void wxDialog::Iconize(bool WXUNUSED(iconize))
 {
 }
 
 void wxDialog::Iconize(bool WXUNUSED(iconize))
 {

-    // TODO
+    // Can't iconize a dialog in Motif, apparently
+    // TODO: try using the parent of m_mainShell.
+    //  XtVaSetValues((Widget) m_mainWidget, XmNiconic, iconize, NULL);

 }
 
 }
 

-bool wxDialog::IsIconized() const
+// Default resizing behaviour - if only ONE subwindow,
+// resize to client rectangle size
+void wxDialog::OnSize(wxSizeEvent& WXUNUSED(event))

 {
 {

-    // TODO
-    return FALSE;
+    // if we're using constraints - do use them
+#if wxUSE_CONSTRAINTS
+    if ( GetAutoLayout() ) {
+        Layout();
+        return;
+    }
+#endif
+
+    // do we have _exactly_ one child?
+    wxWindow *child = NULL;
+    for ( wxNode *node = GetChildren().First(); node; node = node->Next() )
+    {
+        wxWindow *win = (wxWindow *)node->Data();
+        if ( !win->IsKindOf(CLASSINFO(wxFrame))  &&
+            !win->IsKindOf(CLASSINFO(wxDialog))  )
+        {
+            if ( child )
+                return;     // it's our second subwindow - nothing to do
+            child = win;
+        }
+    }
+
+    if ( child ) {
+        // we have exactly one child - set it's size to fill the whole frame
+        int clientW, clientH;
+        GetClientSize(&clientW, &clientH);
+
+        int x = 0;
+        int y = 0;
+
+        child->SetSize(x, y, clientW, clientH);
+    }

 }
 
 }
 

-void wxDialog::SetClientSize(int width, int height)
+
+bool wxDialog::IsIconized() const

 {
 {

-    // TODO
+/*
+Boolean iconic;
+XtVaGetValues((Widget) m_mainWidget, XmNiconic, &iconic, NULL);
+
+  return iconic;
+    */
+    return FALSE;

 }
 
 }
 

-void wxDialog::GetPosition(int *x, int *y) const
+void wxDialog::DoSetSize(int x, int y, int width, int height, int sizeFlags)

 {
 {

-    // TODO
+    XtVaSetValues((Widget) m_mainWidget, XmNresizePolicy, XmRESIZE_ANY, NULL);
+    wxWindow::DoSetSize(x, y, width, height, sizeFlags);
+    XtVaSetValues((Widget) m_mainWidget, XmNresizePolicy, XmRESIZE_NONE, NULL);

 }
 
 }
 

-bool wxDialog::Show(bool show)
+void wxDialog::DoSetClientSize(int width, int height)

 {
 {

-    // TODO
-    return FALSE;
+    wxWindow::SetSize(-1, -1, width, height);

 }
 
 void wxDialog::SetTitle(const wxString& title)
 {
 }
 
 void wxDialog::SetTitle(const wxString& title)
 {

-    // TODO
+    m_dialogTitle = title;
+    if (!title.IsNull())
+    {
+        XmString str = XmStringCreateSimple((char*) (const char*) title);
+        XtVaSetValues((Widget) m_mainWidget,
+            XmNtitle, (char*) (const char*) title,
+            XmNdialogTitle, str, // Roberto Cocchi
+            XmNiconName, (char*) (const char*) title,
+            NULL);
+        XmStringFree(str);
+    }

 }
 
 wxString wxDialog::GetTitle() const
 {
 }
 
 wxString wxDialog::GetTitle() const
 {

-    // TODO
-    return wxString("");
+    return m_dialogTitle;
+}
+
+void wxDialog::Raise()
+{
+    Window parent_window = XtWindow((Widget) m_mainWidget),
+        next_parent   = XtWindow((Widget) m_mainWidget),
+        root          = RootWindowOfScreen(XtScreen((Widget) m_mainWidget));
+    // search for the parent that is child of ROOT, because the WM may
+    // reparent twice and notify only the next parent (like FVWM)
+    while (next_parent != root) {
+        Window *theChildren; unsigned int n;
+        parent_window = next_parent;
+        XQueryTree(XtDisplay((Widget) m_mainWidget), parent_window, &root,
+            &next_parent, &theChildren, &n);
+        XFree(theChildren); // not needed
+    }
+    XRaiseWindow(XtDisplay((Widget) m_mainWidget), parent_window);

 }
 
 }
 

-void wxDialog::Centre(int direction)
+void wxDialog::Lower()

 {
 {

-  int x_offset,y_offset ;
-  int display_width, display_height;
-  int  width, height, x, y;
-  wxFrame *frame ;
-  if (direction & wxCENTER_FRAME)
-  {
-    frame = (wxFrame*)GetParent() ;
-    if (frame)
+    Window parent_window = XtWindow((Widget) m_mainWidget),
+        next_parent   = XtWindow((Widget) m_mainWidget),
+        root          = RootWindowOfScreen(XtScreen((Widget) m_mainWidget));
+    // search for the parent that is child of ROOT, because the WM may
+    // reparent twice and notify only the next parent (like FVWM)
+    while (next_parent != root) {
+        Window *theChildren; unsigned int n;
+        parent_window = next_parent;
+        XQueryTree(XtDisplay((Widget) m_mainWidget), parent_window, &root,
+            &next_parent, &theChildren, &n);
+        XFree(theChildren); // not needed
+    }
+    XLowerWindow(XtDisplay((Widget) m_mainWidget), parent_window);
+}
+
+bool wxDialog::Show(bool show)
+{
+    m_isShown = show;
+
+    if (show)

     {
     {

-      frame->GetPosition(&x_offset,&y_offset) ;
-      frame->GetSize(&display_width,&display_height) ;
+        if (!wxUSE_INVISIBLE_RESIZE)
+            XtMapWidget(XtParent((Widget) m_mainWidget));
+        else
+            XtManageChild((Widget) m_mainWidget) ;
+
+        XRaiseWindow(XtDisplay((Widget) m_mainWidget), XtWindow((Widget) m_mainWidget));
+

     }
     }

-  }
-  else
-    frame = NULL ;
-
-  if (frame==NULL)
-  {
-    wxDisplaySize(&display_width, &display_height);
-    x_offset = 0 ;
-    y_offset = 0 ;
-  }
-
-  GetSize(&width, &height);
-  GetPosition(&x, &y);
-
-  if (direction & wxHORIZONTAL)
-    x = (int)((display_width - width)/2);
-  if (direction & wxVERTICAL)
-    y = (int)((display_height - height)/2);
-
-  SetSize(x+x_offset, y+y_offset, width, height);
+    else
+    {
+        if (!wxUSE_INVISIBLE_RESIZE)
+            XtUnmapWidget(XtParent((Widget) m_mainWidget));
+        else
+            XtUnmanageChild((Widget) m_mainWidget) ;
+
+        XFlush(XtDisplay((Widget) wxTheApp->GetTopLevelWidget()));
+        XSync(XtDisplay((Widget) wxTheApp->GetTopLevelWidget()), FALSE);
+    }
+
+    return TRUE;

 }
 
 }
 

-// Replacement for Show(TRUE) for modal dialogs - returns return code
+// Shows a dialog modally, returning a return code

 int wxDialog::ShowModal()
 {
     m_windowStyle |= wxDIALOG_MODAL;
 int wxDialog::ShowModal()
 {
     m_windowStyle |= wxDIALOG_MODAL;

-    // TODO: modal showing
-       Show(TRUE);
-       return GetReturnCode();
+
+    Show(TRUE);
+
+    if (m_modalShowing)
+        return 0;
+
+    wxModalShowingStack.Insert((wxObject *)TRUE);
+
+    m_modalShowing = TRUE;
+    XtAddGrab((Widget) m_mainWidget, TRUE, FALSE);
+
+    XEvent event;
+
+    // Loop until we signal that the dialog should be closed
+    while ((wxModalShowingStack.Number() > 0) && ((int)(wxModalShowingStack.First()->Data()) != 0))
+    {
+        //        XtAppProcessEvent((XtAppContext) wxTheApp->GetAppContext(), XtIMAll);
+
+        XtAppNextEvent((XtAppContext) wxTheApp->GetAppContext(), &event);
+        wxTheApp->ProcessXEvent((WXEvent*) &event);
+
+        if (XtAppPending( (XtAppContext) wxTheApp->GetAppContext() ) == 0)
+        {
+            if (!wxTheApp->ProcessIdle())
+            {
+#if wxUSE_THREADS
+                // leave the main loop to give other threads a chance to
+                // perform their GUI work
+                wxMutexGuiLeave();
+                wxUsleep(20);
+                wxMutexGuiEnter();
+#endif
+            }
+        }
+    }
+
+    // Remove modal dialog flag from stack
+    wxNode *node = wxModalShowingStack.First();
+    if (node)
+        delete node;
+
+    // Now process all events in case they get sent to a destroyed dialog
+    XSync(XtDisplay((Widget) wxTheApp->GetTopLevelWidget()), FALSE);
+    while (XtAppPending((XtAppContext) wxTheApp->GetAppContext()))
+    {
+        XFlush(XtDisplay((Widget) wxTheApp->GetTopLevelWidget()));
+        XtAppNextEvent((XtAppContext) wxTheApp->GetAppContext(), &event);
+
+        wxTheApp->ProcessXEvent((WXEvent*) &event);
+    }
+
+    // TODO: is it safe to call this, if the dialog may have been deleted
+    // by now? Probably only if we're using delayed deletion of dialogs.
+    return GetReturnCode();

 }
 
 void wxDialog::EndModal(int retCode)
 {
 }
 
 void wxDialog::EndModal(int retCode)
 {

-       SetReturnCode(retCode);
-    // TODO modal un-showing
-       Show(FALSE);
+    if (!m_modalShowing)
+        return;
+
+    SetReturnCode(retCode);
+
+    // Strangely, we don't seem to need this now.
+    //    XtRemoveGrab((Widget) m_mainWidget);
+
+    Show(FALSE);
+
+    m_modalShowing = FALSE;
+
+    wxNode *node = wxModalShowingStack.First();
+    if (node)
+        node->SetData((wxObject *)FALSE);

 }
 
 // Standard buttons
 }
 
 // Standard buttons

-void wxDialog::OnOK(wxCommandEvent& event)
+void wxDialog::OnOK(wxCommandEvent& WXUNUSED(event))

 {
 {

-       if ( Validate() && TransferDataFromWindow() )
-       {
+    if ( Validate() && TransferDataFromWindow() )
+    {

         if ( IsModal() )
             EndModal(wxID_OK);
         else
         {
         if ( IsModal() )
             EndModal(wxID_OK);
         else
         {

-                   SetReturnCode(wxID_OK);
-                   this->Show(FALSE);
+            SetReturnCode(wxID_OK);
+            this->Show(FALSE);

         }
         }

-       }
+    }

 }
 
 }
 

-void wxDialog::OnApply(wxCommandEvent& event)
+void wxDialog::OnApply(wxCommandEvent& WXUNUSED(event))

 {
 {

-       if (Validate())
-               TransferDataFromWindow();
-       // TODO probably need to disable the Apply button until things change again
+    if (Validate())
+        TransferDataFromWindow();
+    // TODO probably need to disable the Apply button until things change again

 }
 
 }
 

-void wxDialog::OnCancel(wxCommandEvent& event)
+void wxDialog::OnCancel(wxCommandEvent& WXUNUSED(event))

 {
     if ( IsModal() )
         EndModal(wxID_CANCEL);
     else
     {
         SetReturnCode(wxID_CANCEL);
 {
     if ( IsModal() )
         EndModal(wxID_CANCEL);
     else
     {
         SetReturnCode(wxID_CANCEL);

-               this->Show(FALSE);
+        this->Show(FALSE);

     }
 }
 
     }
 }
 

-bool wxDialog::OnClose()
+void wxDialog::OnCloseWindow(wxCloseEvent& WXUNUSED(event))

 {
 {

-       // Behaviour changed in 2.0: we'll send a Cancel message by default,
+    // We'll send a Cancel message by default,

     // which may close the dialog.
     // which may close the dialog.

-    // Check for looping if the Cancel event handler calls Close()
+    // Check for looping if the Cancel event handler calls Close().
+
+    // Note that if a cancel button and handler aren't present in the dialog,
+    // nothing will happen when you close the dialog via the window manager, or
+    // via Close().
+    // We wouldn't want to destroy the dialog by default, since the dialog may have been
+    // created on the stack.
+    // However, this does mean that calling dialog->Close() won't delete the dialog
+    // unless the handler for wxID_CANCEL does so. So use Destroy() if you want to be
+    // sure to destroy the dialog.
+    // The default OnCancel (above) simply ends a modal dialog, and hides a modeless dialog.

 
     static wxList closing;
 
     if ( closing.Member(this) )
 
     static wxList closing;
 
     if ( closing.Member(this) )

-        return FALSE;
+        return;

 
     closing.Append(this);
 
 
     closing.Append(this);
 

-       wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
-       cancelEvent.SetEventObject( this );
-       GetEventHandler()->ProcessEvent(cancelEvent);
+    wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
+    cancelEvent.SetEventObject( this );
+    GetEventHandler()->ProcessEvent(cancelEvent); // This may close the dialog

 
     closing.DeleteObject(this);
 
     closing.DeleteObject(this);

+}

 
 

-       return FALSE;
+void wxDialog::OnPaint(wxPaintEvent &WXUNUSED(event))
+{
+  // added for compatiblity only
+}
+
+// Destroy the window (delayed, if a managed window)
+bool wxDialog::Destroy()
+{
+    if (!wxPendingDelete.Member(this))
+        wxPendingDelete.Append(this);
+    return TRUE;

 }
 
 }
 

-void wxDialog::OnCloseWindow(wxCloseEvent& event)
+void wxDialog::OnSysColourChanged(wxSysColourChangedEvent& WXUNUSED(event))

 {
 {

-    // Compatibility
-    if ( GetEventHandler()->OnClose() || event.GetForce())
+    SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE));
+    Refresh();
+}
+
+// Handle a close event from the window manager
+static void wxCloseDialogCallback( Widget WXUNUSED(widget), XtPointer client_data,
+                                  XmAnyCallbackStruct *WXUNUSED(cbs))
+{
+    wxDialog *dialog = (wxDialog *)client_data;
+    wxCloseEvent closeEvent(wxEVT_CLOSE_WINDOW, dialog->GetId());
+    closeEvent.SetEventObject(dialog);
+
+    // May delete the dialog (with delayed deletion)
+    dialog->GetEventHandler()->ProcessEvent(closeEvent);
+}
+
+void wxDialogBoxEventHandler(Widget    wid,
+                             XtPointer WXUNUSED(client_data),
+                             XEvent*   event,
+                             Boolean*  continueToDispatch)
+{
+    wxDialog *dialog = (wxDialog *)wxGetWindowFromTable(wid);
+    if (dialog)

     {
     {

-        this->Destroy();
+        wxMouseEvent wxevent(wxEVT_NULL);
+        if (wxTranslateMouseEvent(wxevent, dialog, wid, event))
+        {
+            wxevent.SetEventObject(dialog);
+            wxevent.SetId(dialog->GetId());
+            dialog->GetEventHandler()->ProcessEvent(wxevent);
+        }
+        else
+        {
+            // An attempt to implement OnCharHook by calling OnCharHook first;
+            // if this returns TRUE, set continueToDispatch to False
+            // (don't continue processing).
+            // Otherwise set it to True and call OnChar.
+            wxKeyEvent keyEvent(wxEVT_CHAR);
+            if (wxTranslateKeyEvent(keyEvent, dialog, wid, event))
+            {
+                keyEvent.SetEventObject(dialog);
+                keyEvent.SetId(dialog->GetId());
+                keyEvent.SetEventType(wxEVT_CHAR_HOOK);
+                if (dialog->GetEventHandler()->ProcessEvent(keyEvent))
+                {
+                    *continueToDispatch = False;
+                    return;
+                }
+                else
+                {
+                    // For simplicity, OnKeyDown is the same as OnChar
+                    // TODO: filter modifier key presses from OnChar
+                    keyEvent.SetEventType(wxEVT_KEY_DOWN);
+
+                    // Only process OnChar if OnKeyDown didn't swallow it
+                    if (!dialog->GetEventHandler()->ProcessEvent (keyEvent))
+                    {
+                        keyEvent.SetEventType(wxEVT_CHAR);
+                        dialog->GetEventHandler()->ProcessEvent(keyEvent);
+                    }
+                }
+            }
+        }

     }
     }

+    *continueToDispatch = True;

 }
 
 }
 

-// Destroy the window (delayed, if a managed window)
-bool wxDialog::Destroy()
+static void wxUnmapBulletinBoard(Widget WXUNUSED(dialog), wxDialog *WXUNUSED(client), XtPointer WXUNUSED(call) )

 {
 {

-  if (!wxPendingDelete.Member(this))
-    wxPendingDelete.Append(this);
-  return TRUE;
+/* This gets called when the dialog is being shown, which
+* defeats modal showing.
+client->m_modalShowing = FALSE ;
+client->m_isShown = FALSE;
+    */

 }
 
 }
 

-void wxDialog::OnSysColourChanged(wxSysColourChangedEvent& event)
+void wxDialog::ChangeFont(bool keepOriginalSize)

 {
 {

-  SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
-  Refresh();
+    wxWindow::ChangeFont(keepOriginalSize);

 }
 
 }
 

-void wxDialog::Fit()
+void wxDialog::ChangeBackgroundColour()

 {
 {

+    if (GetMainWidget())
+        DoChangeBackgroundColour(GetMainWidget(), m_backgroundColour);

 }
 }

+
+void wxDialog::ChangeForegroundColour()
+{
+    if (GetMainWidget())
+        DoChangeForegroundColour(GetMainWidget(), m_foregroundColour);
+}
+