some != NULL checks

[wxWidgets.git] / src / common / docview.cpp

diff --git a/src/common/docview.cpp b/src/common/docview.cpp
index b0e3db14b25d6fefb1dde12ab9e39715ffed514e..1f8003aff7ff218e988cb7be9e79bb1b78fdfa90 100644 (file)
--- a/src/common/docview.cpp
+++ b/src/common/docview.cpp
@@ -56,6 +56,7 @@
 #include "wx/choicdlg.h"
 #include "wx/docview.h"
 #include "wx/confbase.h"
 #include "wx/choicdlg.h"
 #include "wx/docview.h"
 #include "wx/confbase.h"

+#include "wx/file.h"

 
 #include <stdio.h>
 #include <string.h>
 
 #include <stdio.h>
 #include <string.h>


@@ -75,7 +76,6 @@
 // wxWindows macros
 // ----------------------------------------------------------------------------
 
 // wxWindows macros
 // ----------------------------------------------------------------------------
 

-#if !USE_SHARED_LIBRARY

     IMPLEMENT_ABSTRACT_CLASS(wxDocument, wxEvtHandler)
     IMPLEMENT_ABSTRACT_CLASS(wxView, wxEvtHandler)
     IMPLEMENT_ABSTRACT_CLASS(wxDocTemplate, wxObject)
     IMPLEMENT_ABSTRACT_CLASS(wxDocument, wxEvtHandler)
     IMPLEMENT_ABSTRACT_CLASS(wxView, wxEvtHandler)
     IMPLEMENT_ABSTRACT_CLASS(wxDocTemplate, wxObject)


@@ -90,7 +90,6 @@
     IMPLEMENT_CLASS(wxCommand, wxObject)
     IMPLEMENT_DYNAMIC_CLASS(wxCommandProcessor, wxObject)
     IMPLEMENT_DYNAMIC_CLASS(wxFileHistory, wxObject)
     IMPLEMENT_CLASS(wxCommand, wxObject)
     IMPLEMENT_DYNAMIC_CLASS(wxCommandProcessor, wxObject)
     IMPLEMENT_DYNAMIC_CLASS(wxFileHistory, wxObject)

-#endif

 
 // ----------------------------------------------------------------------------
 // function prototypes
 
 // ----------------------------------------------------------------------------
 // function prototypes


@@ -102,7 +101,7 @@ static inline wxString FindExtension(const wxChar *path);
 // local constants
 // ----------------------------------------------------------------------------
 
 // local constants
 // ----------------------------------------------------------------------------
 

-static const char *s_MRUEntryFormat = _T("&%d %s");
+static const wxChar *s_MRUEntryFormat = wxT("&%d %s");

 
 // ============================================================================
 // implementation
 
 // ============================================================================
 // implementation


@@ -223,7 +222,7 @@ bool wxDocument::Save()
     bool ret = FALSE;
 
     if (!IsModified()) return TRUE;
     bool ret = FALSE;
 
     if (!IsModified()) return TRUE;

-    if (m_documentFile == _T("") || !m_savedYet)
+    if (m_documentFile == wxT("") || !m_savedYet)

         ret = SaveAs();
     else
         ret = OnSaveDocument(m_documentFile);
         ret = SaveAs();
     else
         ret = OnSaveDocument(m_documentFile);


@@ -253,7 +252,7 @@ bool wxDocument::SaveAs()
     wxString path, name, ext;
     wxSplitPath(fileName, & path, & name, & ext);
 
     wxString path, name, ext;
     wxSplitPath(fileName, & path, & name, & ext);
 

-    if (ext.IsEmpty() || ext == _T(""))
+    if (ext.IsEmpty() || ext == wxT(""))

     {
         fileName += ".";
         fileName += docTemplate->GetDefaultExtension();
     {
         fileName += ".";
         fileName += docTemplate->GetDefaultExtension();


@@ -282,7 +281,7 @@ bool wxDocument::OnSaveDocument(const wxString& file)
         return FALSE;
 
     wxString msgTitle;
         return FALSE;
 
     wxString msgTitle;

-    if (wxTheApp->GetAppName() != _T(""))
+    if (wxTheApp->GetAppName() != wxT(""))

         msgTitle = wxTheApp->GetAppName();
     else
         msgTitle = wxString(_("File error"));
         msgTitle = wxTheApp->GetAppName();
     else
         msgTitle = wxString(_("File error"));


@@ -292,7 +291,7 @@ bool wxDocument::OnSaveDocument(const wxString& file)
     if (store.fail() || store.bad())
 #else
     wxFileOutputStream store(wxString(file.fn_str()));
     if (store.fail() || store.bad())
 #else
     wxFileOutputStream store(wxString(file.fn_str()));

-    if (store.LastError() != 0)
+    if (store.LastError() != wxSTREAM_NOERROR)

 #endif
     {
         (void)wxMessageBox(_("Sorry, could not open this file for saving."), msgTitle, wxOK | wxICON_EXCLAMATION,
 #endif
     {
         (void)wxMessageBox(_("Sorry, could not open this file for saving."), msgTitle, wxOK | wxICON_EXCLAMATION,


@@ -318,7 +317,7 @@ bool wxDocument::OnOpenDocument(const wxString& file)
         return FALSE;
 
     wxString msgTitle;
         return FALSE;
 
     wxString msgTitle;

-    if (wxTheApp->GetAppName() != _T(""))
+    if (wxTheApp->GetAppName() != wxT(""))

         msgTitle = wxTheApp->GetAppName();
     else
         msgTitle = wxString(_("File error"));
         msgTitle = wxTheApp->GetAppName();
     else
         msgTitle = wxString(_("File error"));


@@ -328,14 +327,20 @@ bool wxDocument::OnOpenDocument(const wxString& file)
     if (store.fail() || store.bad())
 #else
     wxFileInputStream store(wxString(file.fn_str()));
     if (store.fail() || store.bad())
 #else
     wxFileInputStream store(wxString(file.fn_str()));

-    if (store.LastError() != 0)
+    if (store.LastError() != wxSTREAM_NOERROR)

 #endif
     {
         (void)wxMessageBox(_("Sorry, could not open this file."), msgTitle, wxOK|wxICON_EXCLAMATION,
                            GetDocumentWindow());
         return FALSE;
     }
 #endif
     {
         (void)wxMessageBox(_("Sorry, could not open this file."), msgTitle, wxOK|wxICON_EXCLAMATION,
                            GetDocumentWindow());
         return FALSE;
     }

+#if wxUSE_STD_IOSTREAM

     if (!LoadObject(store))
     if (!LoadObject(store))

+#else
+    int res = LoadObject(store).LastError();
+    if ((res != wxSTREAM_NOERROR) &&
+        (res != wxSTREAM_EOF))
+#endif

     {
         (void)wxMessageBox(_("Sorry, could not open this file."), msgTitle, wxOK|wxICON_EXCLAMATION,
                            GetDocumentWindow());
     {
         (void)wxMessageBox(_("Sorry, could not open this file."), msgTitle, wxOK|wxICON_EXCLAMATION,
                            GetDocumentWindow());


@@ -377,12 +382,12 @@ bool wxDocument::Revert()
 // Get title, or filename if no title, else unnamed
 bool wxDocument::GetPrintableName(wxString& buf) const
 {
 // Get title, or filename if no title, else unnamed
 bool wxDocument::GetPrintableName(wxString& buf) const
 {

-    if (m_documentTitle != _T(""))
+    if (m_documentTitle != wxT(""))

     {
         buf = m_documentTitle;
         return TRUE;
     }
     {
         buf = m_documentTitle;
         return TRUE;
     }

-    else if (m_documentFile != _T(""))
+    else if (m_documentFile != wxT(""))

     {
         buf = wxFileNameFromPath(m_documentFile);
         return TRUE;
     {
         buf = wxFileNameFromPath(m_documentFile);
         return TRUE;


@@ -417,7 +422,7 @@ bool wxDocument::OnSaveModified()
         GetPrintableName(title);
 
         wxString msgTitle;
         GetPrintableName(title);
 
         wxString msgTitle;

-        if (wxTheApp->GetAppName() != _T(""))
+        if (wxTheApp->GetAppName() != wxT(""))

             msgTitle = wxTheApp->GetAppName();
         else
             msgTitle = wxString(_("Warning"));
             msgTitle = wxTheApp->GetAppName();
         else
             msgTitle = wxString(_("Warning"));


@@ -521,13 +526,13 @@ wxView::wxView()
     //  SetDocument(doc);
     m_viewDocument = (wxDocument*) NULL;
 
     //  SetDocument(doc);
     m_viewDocument = (wxDocument*) NULL;
 

-    m_viewTypeName = "";
+    m_viewTypeName = wxT("");

     m_viewFrame = (wxFrame *) NULL;
 }
 
 wxView::~wxView()
 {
     m_viewFrame = (wxFrame *) NULL;
 }
 
 wxView::~wxView()
 {

-    GetDocumentManager()->ActivateView(this, FALSE, TRUE);
+//    GetDocumentManager()->ActivateView(this, FALSE, TRUE);

     m_viewDocument->RemoveView(this);
 }
 
     m_viewDocument->RemoveView(this);
 }
 


@@ -557,10 +562,11 @@ void wxView::OnChangeFilename()
 {
     if (GetFrame() && GetDocument())
     {
 {
     if (GetFrame() && GetDocument())
     {

-        wxString name;
-        GetDocument()->GetPrintableName(name);
+        wxString title;
+
+        GetDocument()->GetPrintableName(title);

 
 

-        GetFrame()->SetTitle(name);
+        GetFrame()->SetTitle(title);

     }
 }
 
     }
 }
 


@@ -691,13 +697,29 @@ BEGIN_EVENT_TABLE(wxDocManager, wxEvtHandler)
     EVT_MENU(wxID_SAVEAS, wxDocManager::OnFileSaveAs)
     EVT_MENU(wxID_UNDO, wxDocManager::OnUndo)
     EVT_MENU(wxID_REDO, wxDocManager::OnRedo)
     EVT_MENU(wxID_SAVEAS, wxDocManager::OnFileSaveAs)
     EVT_MENU(wxID_UNDO, wxDocManager::OnUndo)
     EVT_MENU(wxID_REDO, wxDocManager::OnRedo)

+
+    EVT_UPDATE_UI(wxID_OPEN, wxDocManager::OnUpdateFileOpen)
+    EVT_UPDATE_UI(wxID_CLOSE, wxDocManager::OnUpdateFileClose)
+    EVT_UPDATE_UI(wxID_REVERT, wxDocManager::OnUpdateFileRevert)
+    EVT_UPDATE_UI(wxID_NEW, wxDocManager::OnUpdateFileNew)
+    EVT_UPDATE_UI(wxID_SAVE, wxDocManager::OnUpdateFileSave)
+    EVT_UPDATE_UI(wxID_SAVEAS, wxDocManager::OnUpdateFileSaveAs)
+    EVT_UPDATE_UI(wxID_UNDO, wxDocManager::OnUpdateUndo)
+    EVT_UPDATE_UI(wxID_REDO, wxDocManager::OnUpdateRedo)
+

 #if wxUSE_PRINTING_ARCHITECTURE
     EVT_MENU(wxID_PRINT, wxDocManager::OnPrint)
     EVT_MENU(wxID_PRINT_SETUP, wxDocManager::OnPrintSetup)
     EVT_MENU(wxID_PREVIEW, wxDocManager::OnPreview)
 #if wxUSE_PRINTING_ARCHITECTURE
     EVT_MENU(wxID_PRINT, wxDocManager::OnPrint)
     EVT_MENU(wxID_PRINT_SETUP, wxDocManager::OnPrintSetup)
     EVT_MENU(wxID_PREVIEW, wxDocManager::OnPreview)

+
+    EVT_UPDATE_UI(wxID_PRINT, wxDocManager::OnUpdatePrint)
+    EVT_UPDATE_UI(wxID_PRINT_SETUP, wxDocManager::OnUpdatePrintSetup)
+    EVT_UPDATE_UI(wxID_PREVIEW, wxDocManager::OnUpdatePreview)

 #endif
 END_EVENT_TABLE()
 
 #endif
 END_EVENT_TABLE()
 

+wxDocManager* wxDocManager::sm_docManager = (wxDocManager*) NULL;
+

 wxDocManager::wxDocManager(long flags, bool initialize)
 {
     m_defaultDocumentNameCounter = 1;
 wxDocManager::wxDocManager(long flags, bool initialize)
 {
     m_defaultDocumentNameCounter = 1;


@@ -707,6 +729,7 @@ wxDocManager::wxDocManager(long flags, bool initialize)
     m_fileHistory = (wxFileHistory *) NULL;
     if (initialize)
         Initialize();
     m_fileHistory = (wxFileHistory *) NULL;
     if (initialize)
         Initialize();

+    sm_docManager = this;

 }
 
 wxDocManager::~wxDocManager()
 }
 
 wxDocManager::~wxDocManager()


@@ -714,6 +737,7 @@ wxDocManager::~wxDocManager()
     Clear();
     if (m_fileHistory)
         delete m_fileHistory;
     Clear();
     if (m_fileHistory)
         delete m_fileHistory;

+    sm_docManager = (wxDocManager*) NULL;

 }
 
 bool wxDocManager::Clear(bool force)
 }
 
 bool wxDocManager::Clear(bool force)


@@ -884,6 +908,71 @@ void wxDocManager::OnRedo(wxCommandEvent& WXUNUSED(event))
         doc->GetCommandProcessor()->Redo();
 }
 
         doc->GetCommandProcessor()->Redo();
 }
 

+// Handlers for UI update commands
+
+void wxDocManager::OnUpdateFileOpen(wxUpdateUIEvent& event)
+{
+    event.Enable( TRUE );
+}
+
+void wxDocManager::OnUpdateFileClose(wxUpdateUIEvent& event)
+{
+    wxDocument *doc = GetCurrentDocument();
+    event.Enable( (doc != (wxDocument*) NULL) );
+}
+
+void wxDocManager::OnUpdateFileRevert(wxUpdateUIEvent& event)
+{
+    wxDocument *doc = GetCurrentDocument();
+    event.Enable( (doc != (wxDocument*) NULL) );
+}
+
+void wxDocManager::OnUpdateFileNew(wxUpdateUIEvent& event)
+{
+    event.Enable( TRUE );
+}
+
+void wxDocManager::OnUpdateFileSave(wxUpdateUIEvent& event)
+{
+    wxDocument *doc = GetCurrentDocument();
+    event.Enable( (doc != (wxDocument*) NULL) );
+}
+
+void wxDocManager::OnUpdateFileSaveAs(wxUpdateUIEvent& event)
+{
+    wxDocument *doc = GetCurrentDocument();
+    event.Enable( (doc != (wxDocument*) NULL) );
+}
+
+void wxDocManager::OnUpdateUndo(wxUpdateUIEvent& event)
+{
+    wxDocument *doc = GetCurrentDocument();
+    event.Enable( (doc && doc->GetCommandProcessor() && doc->GetCommandProcessor()->CanUndo()) );
+}
+
+void wxDocManager::OnUpdateRedo(wxUpdateUIEvent& event)
+{
+    wxDocument *doc = GetCurrentDocument();
+    event.Enable( (doc && doc->GetCommandProcessor() && doc->GetCommandProcessor()->CanRedo()) );
+}
+
+void wxDocManager::OnUpdatePrint(wxUpdateUIEvent& event)
+{
+    wxDocument *doc = GetCurrentDocument();
+    event.Enable( (doc != (wxDocument*) NULL) );
+}
+
+void wxDocManager::OnUpdatePrintSetup(wxUpdateUIEvent& event)
+{
+    event.Enable( TRUE );
+}
+
+void wxDocManager::OnUpdatePreview(wxUpdateUIEvent& event)
+{
+    wxDocument *doc = GetCurrentDocument();
+    event.Enable( (doc != (wxDocument*) NULL) );
+}
+

 wxView *wxDocManager::GetCurrentView() const
 {
     if (m_currentView)
 wxView *wxDocManager::GetCurrentView() const
 {
     if (m_currentView)


@@ -984,8 +1073,8 @@ wxDocument *wxDocManager::CreateDocument(const wxString& path, long flags)
     // Existing document
     wxDocTemplate *temp = (wxDocTemplate *) NULL;
 
     // Existing document
     wxDocTemplate *temp = (wxDocTemplate *) NULL;
 

-    wxString path2(_T(""));
-    if (path != _T(""))
+    wxString path2(wxT(""));
+    if (path != wxT(""))

         path2 = path;
 
     if (flags & wxDOC_SILENT)
         path2 = path;
 
     if (flags & wxDOC_SILENT)


@@ -1088,6 +1177,24 @@ bool wxDocManager::MakeDefaultName(wxString& name)
     return TRUE;
 }
 
     return TRUE;
 }
 

+// Make a frame title (override this to do something different)
+// If docName is empty, a document is not currently active.
+wxString wxDocManager::MakeFrameTitle(wxDocument* doc)
+{
+    wxString appName = wxTheApp->GetAppName();
+    wxString title;
+    if (!doc)
+        title = appName;
+    else
+    {
+        wxString docName;
+        doc->GetPrintableName(docName);
+        title = docName + wxString(_(" - ")) + appName;
+    }
+    return title;
+}
+
+

 // Not yet implemented
 wxDocTemplate *wxDocManager::MatchTemplate(const wxString& WXUNUSED(path))
 {
 // Not yet implemented
 wxDocTemplate *wxDocManager::MatchTemplate(const wxString& WXUNUSED(path))
 {


@@ -1190,7 +1297,7 @@ wxDocTemplate *wxDocManager::FindTemplateForPath(const wxString& path)
 // template extension.
 
 wxDocTemplate *wxDocManager::SelectDocumentPath(wxDocTemplate **templates,
 // template extension.
 
 wxDocTemplate *wxDocManager::SelectDocumentPath(wxDocTemplate **templates,

-#ifdef __WXMSW__
+#if defined(__WXMSW__) || defined(__WXGTK__)

                                                 int noTemplates,
 #else
                                                 int WXUNUSED(noTemplates),
                                                 int noTemplates,
 #else
                                                 int WXUNUSED(noTemplates),


@@ -1199,8 +1306,8 @@ wxDocTemplate *wxDocManager::SelectDocumentPath(wxDocTemplate **templates,
                                                 long WXUNUSED(flags),
                                                 bool WXUNUSED(save))
 {
                                                 long WXUNUSED(flags),
                                                 bool WXUNUSED(save))
 {

-    // We can only have multiple filters in Windows
-#ifdef __WXMSW__
+    // We can only have multiple filters in Windows and GTK
+#if defined(__WXMSW__) || defined(__WXGTK__)

     wxString descrBuf;
 
     int i;
     wxString descrBuf;
 
     int i;


@@ -1210,21 +1317,21 @@ wxDocTemplate *wxDocManager::SelectDocumentPath(wxDocTemplate **templates,
         {
             // add a '|' to separate this filter from the previous one
             if ( !descrBuf.IsEmpty() )
         {
             // add a '|' to separate this filter from the previous one
             if ( !descrBuf.IsEmpty() )

-                descrBuf << _T('|');
+                descrBuf << wxT('|');

 
             descrBuf << templates[i]->GetDescription()
 
             descrBuf << templates[i]->GetDescription()

-                << _T(" (") << templates[i]->GetFileFilter() << _T(") |")
+                << wxT(" (") << templates[i]->GetFileFilter() << wxT(") |")

                 << templates[i]->GetFileFilter();
         }
     }
 #else
                 << templates[i]->GetFileFilter();
         }
     }
 #else

-    wxString descrBuf = _T("*.*");
+    wxString descrBuf = wxT("*.*");

 #endif
 
     int FilterIndex = 0;
     wxString pathTmp = wxFileSelectorEx(_("Select a file"),
 #endif
 
     int FilterIndex = 0;
     wxString pathTmp = wxFileSelectorEx(_("Select a file"),

-                                        _T(""),
-                                        _T(""),
+                                        m_lastDirectory,
+                                        wxT(""),

                                         &FilterIndex,
                                         descrBuf,
                                         0,
                                         &FilterIndex,
                                         descrBuf,
                                         0,


@@ -1232,10 +1339,9 @@ wxDocTemplate *wxDocManager::SelectDocumentPath(wxDocTemplate **templates,
 
     if (!pathTmp.IsEmpty())
     {
 
     if (!pathTmp.IsEmpty())
     {

+        m_lastDirectory = wxPathOnly(pathTmp);
+

         path = pathTmp;
         path = pathTmp;

-        wxString theExt = FindExtension(path);
-        if (!theExt)
-            return (wxDocTemplate *) NULL;

 
         // This is dodgy in that we're selecting the template on the
         // basis of the file extension, which may not be a standard
 
         // This is dodgy in that we're selecting the template on the
         // basis of the file extension, which may not be a standard


@@ -1249,7 +1355,7 @@ wxDocTemplate *wxDocManager::SelectDocumentPath(wxDocTemplate **templates,
     }
     else
     {
     }
     else
     {

-        path = _T("");
+        path = wxT("");

         return (wxDocTemplate *) NULL;
     }
 #if 0
         return (wxDocTemplate *) NULL;
     }
 #if 0


@@ -1260,7 +1366,7 @@ wxDocTemplate *wxDocManager::SelectDocumentPath(wxDocTemplate **templates,
     if (!temp)
         return (wxDocTemplate *) NULL;
 
     if (!temp)
         return (wxDocTemplate *) NULL;
 

-    wxChar *pathTmp = wxFileSelector(_("Select a file"), _T(""), _T(""),
+    wxChar *pathTmp = wxFileSelector(_("Select a file"), wxT(""), wxT(""),

             temp->GetDefaultExtension(),
             temp->GetFileFilter(),
             0, wxTheApp->GetTopWindow());
             temp->GetDefaultExtension(),
             temp->GetFileFilter(),
             0, wxTheApp->GetTopWindow());


@@ -1286,7 +1392,7 @@ wxDocTemplate *wxDocManager::SelectDocumentType(wxDocTemplate **templates,
     {
         if (templates[i]->IsVisible())
         {
     {
         if (templates[i]->IsVisible())
         {

-            strings[n] = WXSTRINGCAST templates[i]->m_description;
+            strings[n] = (wxChar *)templates[i]->m_description.c_str();

             data[n] = (wxChar *)templates[i];
             n ++;
         }
             data[n] = (wxChar *)templates[i];
             n ++;
         }


@@ -1306,7 +1412,7 @@ wxDocTemplate *wxDocManager::SelectDocumentType(wxDocTemplate **templates,
     }
 
     wxDocTemplate *theTemplate = (wxDocTemplate *)wxGetSingleChoiceData(_("Select a document template"), _("Templates"), n,
     }
 
     wxDocTemplate *theTemplate = (wxDocTemplate *)wxGetSingleChoiceData(_("Select a document template"), _("Templates"), n,

-            strings, (char **)data);
+            strings, (void **)data);

     delete[] strings;
     delete[] data;
     return theTemplate;
     delete[] strings;
     delete[] data;
     return theTemplate;


@@ -1321,15 +1427,15 @@ wxDocTemplate *wxDocManager::SelectViewType(wxDocTemplate **templates,
     int n = 0;
     for (i = 0; i < noTemplates; i++)
     {
     int n = 0;
     for (i = 0; i < noTemplates; i++)
     {

-        if (templates[i]->IsVisible() && (templates[i]->GetViewName() != _T("")))
+        if (templates[i]->IsVisible() && (templates[i]->GetViewName() != wxT("")))

         {
         {

-            strings[n] = WXSTRINGCAST templates[i]->m_viewTypeName;
+            strings[n] = (wxChar *)templates[i]->m_viewTypeName.c_str();

             data[n] = (wxChar *)templates[i];
             n ++;
         }
     }
     wxDocTemplate *theTemplate = (wxDocTemplate *)wxGetSingleChoiceData(_("Select a document view"), _("Views"), n,
             data[n] = (wxChar *)templates[i];
             n ++;
         }
     }
     wxDocTemplate *theTemplate = (wxDocTemplate *)wxGetSingleChoiceData(_("Select a document view"), _("Views"), n,

-            strings, (char **)data);
+            strings, (void **)data);

     delete[] strings;
     delete[] data;
     return theTemplate;
     delete[] strings;
     delete[] data;
     return theTemplate;


@@ -1542,7 +1648,7 @@ void wxDocParentFrame::OnCloseWindow(wxCloseEvent& event)
 #if wxUSE_PRINTING_ARCHITECTURE
 
 wxDocPrintout::wxDocPrintout(wxView *view, const wxString& title)
 #if wxUSE_PRINTING_ARCHITECTURE
 
 wxDocPrintout::wxDocPrintout(wxView *view, const wxString& title)

-             : wxPrintout(WXSTRINGCAST title)
+             : wxPrintout(title)

 {
     m_printoutView = view;
 }
 {
     m_printoutView = view;
 }


@@ -1758,7 +1864,7 @@ void wxCommandProcessor::SetMenuStrings()
         {
             wxCommand *command = (wxCommand *)m_currentCommand->Data();
             wxString commandName(command->GetName());
         {
             wxCommand *command = (wxCommand *)m_currentCommand->Data();
             wxString commandName(command->GetName());

-            if (commandName == _T("")) commandName = _("Unnamed command");
+            if (commandName == wxT("")) commandName = _("Unnamed command");

             bool canUndo = command->CanUndo();
             if (canUndo)
                 buf = wxString(_("&Undo ")) + commandName;
             bool canUndo = command->CanUndo();
             if (canUndo)
                 buf = wxString(_("&Undo ")) + commandName;


@@ -1773,7 +1879,7 @@ void wxCommandProcessor::SetMenuStrings()
             {
                 wxCommand *redoCommand = (wxCommand *)m_currentCommand->Next()->Data();
                 wxString redoCommandName(redoCommand->GetName());
             {
                 wxCommand *redoCommand = (wxCommand *)m_currentCommand->Next()->Data();
                 wxString redoCommandName(redoCommand->GetName());

-                if (redoCommandName == _T("")) redoCommandName = _("Unnamed command");
+                if (redoCommandName == wxT("")) redoCommandName = _("Unnamed command");

                 buf = wxString(_("&Redo ")) + redoCommandName;
                 m_commandEditMenu->SetLabel(wxID_REDO, buf);
                 m_commandEditMenu->Enable(wxID_REDO, TRUE);
                 buf = wxString(_("&Redo ")) + redoCommandName;
                 m_commandEditMenu->SetLabel(wxID_REDO, buf);
                 m_commandEditMenu->Enable(wxID_REDO, TRUE);


@@ -1800,7 +1906,7 @@ void wxCommandProcessor::SetMenuStrings()
                 // we've undone to the start of the list, but can redo the first.
                 wxCommand *redoCommand = (wxCommand *)m_commands.First()->Data();
                 wxString redoCommandName(redoCommand->GetName());
                 // we've undone to the start of the list, but can redo the first.
                 wxCommand *redoCommand = (wxCommand *)m_commands.First()->Data();
                 wxString redoCommandName(redoCommand->GetName());

-                if (redoCommandName == _T("")) redoCommandName = _("Unnamed command");
+                if (redoCommandName == wxT("")) redoCommandName = _("Unnamed command");

                 buf = wxString(_("&Redo ")) + redoCommandName;
                 m_commandEditMenu->SetLabel(wxID_REDO, buf);
                 m_commandEditMenu->Enable(wxID_REDO, TRUE);
                 buf = wxString(_("&Redo ")) + redoCommandName;
                 m_commandEditMenu->SetLabel(wxID_REDO, buf);
                 m_commandEditMenu->Enable(wxID_REDO, TRUE);


@@ -1899,19 +2005,13 @@ void wxFileHistory::AddFileToHistory(const wxString& file)
 void wxFileHistory::RemoveFileFromHistory(int i)
 {
     wxCHECK_RET( i < m_fileHistoryN,
 void wxFileHistory::RemoveFileFromHistory(int i)
 {
     wxCHECK_RET( i < m_fileHistoryN,

-                 _T("invalid index in wxFileHistory::RemoveFileFromHistory") );
+                 wxT("invalid index in wxFileHistory::RemoveFileFromHistory") );

 
     wxNode* node = m_fileMenus.First();
     while ( node )
     {
         wxMenu* menu = (wxMenu*) node->Data();
 
 
     wxNode* node = m_fileMenus.First();
     while ( node )
     {
         wxMenu* menu = (wxMenu*) node->Data();
 

-        // wxMenu::Delete() is missing from wxGTK, so this can't be done :-(
-#if 0
-        // delete the menu items
-        menu->Delete(wxID_FILE1 + i);
-#endif
-

         // delete the element from the array (could use memmove() too...)
         delete [] m_fileHistory[i];
 
         // delete the element from the array (could use memmove() too...)
         delete [] m_fileHistory[i];
 


@@ -1929,22 +2029,44 @@ void wxFileHistory::RemoveFileFromHistory(int i)
             menu->SetLabel(wxID_FILE1 + j, buf);
         }
 
             menu->SetLabel(wxID_FILE1 + j, buf);
         }
 

-        // to be removed as soon as wxMenu::Delete() is implemented
-#if 1
-        menu->SetLabel(wxID_FILE1 + m_fileHistoryN - 1, _T(""));
-#endif
-

         node = node->Next();
         node = node->Next();

+
+        // delete the last menu item which is unused now
+        menu->Delete(wxID_FILE1 + m_fileHistoryN - 1);
+
+        // delete the last separator too if no more files are left
+        if ( m_fileHistoryN == 1 )
+        {
+            wxMenuItemList::Node *node = menu->GetMenuItems().GetLast();
+            if ( node )
+            {
+                wxMenuItem *menuItem = node->GetData();
+                if ( menuItem->IsSeparator() )
+                {
+                    menu->Delete(menuItem);
+                }
+                //else: should we search backwards for the last separator?
+            }
+            //else: menu is empty somehow
+        }

     }
     }

+

     m_fileHistoryN--;
 }
 
 wxString wxFileHistory::GetHistoryFile(int i) const
 {
     m_fileHistoryN--;
 }
 
 wxString wxFileHistory::GetHistoryFile(int i) const
 {

-    if (i < m_fileHistoryN)
-        return wxString(m_fileHistory[i]);
+    wxString s;
+    if ( i < m_fileHistoryN )
+    {
+        s = m_fileHistory[i];
+    }

     else
     else

-        return wxString("");
+    {
+        wxFAIL_MSG( wxT("bad index in wxFileHistory::GetHistoryFile") );
+    }
+
+    return s;

 }
 
 void wxFileHistory::UseMenu(wxMenu *menu)
 }
 
 void wxFileHistory::UseMenu(wxMenu *menu)


@@ -1963,14 +2085,14 @@ void wxFileHistory::Load(wxConfigBase& config)
 {
     m_fileHistoryN = 0;
     wxString buf;
 {
     m_fileHistoryN = 0;
     wxString buf;

-    buf.Printf(_T("file%d"), m_fileHistoryN+1);
+    buf.Printf(wxT("file%d"), m_fileHistoryN+1);

     wxString historyFile;
     wxString historyFile;

-    while ((m_fileHistoryN <= m_fileMaxFiles) && config.Read(buf, &historyFile) && (historyFile != _T("")))
+    while ((m_fileHistoryN <= m_fileMaxFiles) && config.Read(buf, &historyFile) && (historyFile != wxT("")))

     {
         m_fileHistory[m_fileHistoryN] = copystring((const wxChar*) historyFile);
         m_fileHistoryN ++;
     {
         m_fileHistory[m_fileHistoryN] = copystring((const wxChar*) historyFile);
         m_fileHistoryN ++;

-        buf.Printf(_T("file%d"), m_fileHistoryN+1);
-        historyFile = "";
+        buf.Printf(wxT("file%d"), m_fileHistoryN+1);
+        historyFile = wxT("");

     }
     AddFilesToMenu();
 }
     }
     AddFilesToMenu();
 }


@@ -1981,7 +2103,7 @@ void wxFileHistory::Save(wxConfigBase& config)
     for (i = 0; i < m_fileHistoryN; i++)
     {
         wxString buf;
     for (i = 0; i < m_fileHistoryN; i++)
     {
         wxString buf;

-        buf.Printf(_T("file%d"), i+1);
+        buf.Printf(wxT("file%d"), i+1);

         config.Write(buf, wxString(m_fileHistory[i]));
     }
 }
         config.Write(buf, wxString(m_fileHistory[i]));
     }
 }


@@ -2069,6 +2191,42 @@ bool wxTransferStreamToFile(istream& stream, const wxString& filename)
     fclose (fd1);
     return TRUE;
 }
     fclose (fd1);
     return TRUE;
 }

+#else
+bool wxTransferFileToStream(const wxString& filename, wxOutputStream& stream)
+{
+    FILE *fd1;
+    int ch;
+
+    if ((fd1 = fopen (filename.fn_str(), "rb")) == NULL)
+        return FALSE;
+
+    while ((ch = getc (fd1)) != EOF)
+        stream.PutC((char) ch);
+
+    fclose (fd1);
+    return TRUE;
+}
+
+bool wxTransferStreamToFile(wxInputStream& stream, const wxString& filename)
+{
+    FILE *fd1;
+    char ch;
+
+    if ((fd1 = fopen (filename.fn_str(), "wb")) == NULL)
+    {
+        return FALSE;
+    }
+
+    int len = stream.StreamSize();
+    // TODO: is this the correct test for EOF?
+    while (stream.TellI() < (len - 1))
+    {
+        ch = stream.GetC();
+        putc (ch, fd1);
+    }
+    fclose (fd1);
+    return TRUE;
+}

 #endif
 
 #endif // wxUSE_DOC_VIEW_ARCHITECTURE
 #endif
 
 #endif // wxUSE_DOC_VIEW_ARCHITECTURE