]> git.saurik.com Git - wxWidgets.git/commitdiff
mimetype common implementation
authorStefan Csomor <csomor@advancedconcepts.ch>
Thu, 21 Aug 2008 07:30:33 +0000 (07:30 +0000)
committerStefan Csomor <csomor@advancedconcepts.ch>
Thu, 21 Aug 2008 07:30:33 +0000 (07:30 +0000)
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@55140 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/osx/core/mimetype.cpp [new file with mode: 0644]

diff --git a/src/osx/core/mimetype.cpp b/src/osx/core/mimetype.cpp
new file mode 100644 (file)
index 0000000..59fd12a
--- /dev/null
@@ -0,0 +1,785 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        src/osx/core/mimetype.cpp
+// Purpose:     classes and functions to manage MIME types
+// Author:      Vadim Zeitlin, Stefan Csomor
+// Modified by:
+// Created:     23.09.98
+// RCS-ID:      $Id: mimetype.cpp 54734 2008-07-21 01:33:51Z VZ $
+// Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
+// Licence:     wxWindows licence (part of wxExtra library)
+/////////////////////////////////////////////////////////////////////////////
+
+// for compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#ifdef __BORLANDC__
+    #pragma hdrstop
+#endif
+
+#if wxUSE_MIMETYPE && wxUSE_FILE
+
+#include "wx/unix/mimetype.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/dynarray.h"
+    #include "wx/string.h"
+    #include "wx/intl.h"
+    #include "wx/log.h"
+    #include "wx/utils.h"
+#endif
+
+#include "wx/file.h"
+#include "wx/confbase.h"
+
+#include "wx/ffile.h"
+#include "wx/dir.h"
+#include "wx/tokenzr.h"
+#include "wx/iconloc.h"
+#include "wx/filename.h"
+#include "wx/app.h"
+#include "wx/apptrait.h"
+
+// other standard headers
+#include <ctype.h>
+
+// ----------------------------------------------------------------------------
+// constants
+// ----------------------------------------------------------------------------
+
+// MIME code tracing mask
+#define TRACE_MIME wxT("mime")
+
+// ----------------------------------------------------------------------------
+// wxFileTypeImpl (Unix)
+// ----------------------------------------------------------------------------
+
+wxString wxFileTypeImpl::GetExpandedCommand(const wxString & verb, const wxFileType::MessageParameters& params) const
+{
+    wxString sTmp;
+    size_t i = 0;
+    while ( (i < m_index.GetCount() ) && sTmp.empty() )
+    {
+        sTmp = m_manager->GetCommand( verb, m_index[i] );
+        i++;
+    }
+
+    return wxFileType::ExpandCommand(sTmp, params);
+}
+
+bool wxFileTypeImpl::GetIcon(wxIconLocation *iconLoc) const
+{
+    wxString sTmp;
+    size_t i = 0;
+    while ( (i < m_index.GetCount() ) && sTmp.empty() )
+    {
+        sTmp = m_manager->m_aIcons[m_index[i]];
+        i++;
+    }
+
+    if ( sTmp.empty() )
+        return false;
+
+    if ( iconLoc )
+    {
+        iconLoc->SetFileName(sTmp);
+    }
+
+    return true;
+}
+
+bool wxFileTypeImpl::GetMimeTypes(wxArrayString& mimeTypes) const
+{
+    mimeTypes.Clear();
+    size_t nCount = m_index.GetCount();
+    for (size_t i = 0; i < nCount; i++)
+        mimeTypes.Add(m_manager->m_aTypes[m_index[i]]);
+
+    return true;
+}
+
+size_t wxFileTypeImpl::GetAllCommands(wxArrayString *verbs,
+                                  wxArrayString *commands,
+                                  const wxFileType::MessageParameters& params) const
+{
+    wxString vrb, cmd, sTmp;
+    size_t count = 0;
+    wxMimeTypeCommands * sPairs;
+
+    // verbs and commands have been cleared already in mimecmn.cpp...
+    // if we find no entries in the exact match, try the inexact match
+    for (size_t n = 0; ((count == 0) && (n < m_index.GetCount())); n++)
+    {
+        // list of verb = command pairs for this mimetype
+        sPairs = m_manager->m_aEntries [m_index[n]];
+        size_t i;
+        for ( i = 0; i < sPairs->GetCount(); i++ )
+        {
+            vrb = sPairs->GetVerb(i);
+            // some gnome entries have "." inside
+            vrb = vrb.AfterLast(wxT('.'));
+            cmd = sPairs->GetCmd(i);
+            if (! cmd.empty() )
+            {
+                 cmd = wxFileType::ExpandCommand(cmd, params);
+                 count++;
+                 if ( vrb.IsSameAs(wxT("open")))
+                 {
+                     if ( verbs )
+                        verbs->Insert(vrb, 0u);
+                     if ( commands )
+                        commands ->Insert(cmd, 0u);
+                 }
+                 else
+                 {
+                     if ( verbs )
+                        verbs->Add(vrb);
+                     if ( commands )
+                        commands->Add(cmd);
+                 }
+             }
+        }
+    }
+
+    return count;
+}
+
+bool wxFileTypeImpl::GetExtensions(wxArrayString& extensions)
+{
+    const wxString strExtensions = m_manager->GetExtension(m_index[0]);
+    extensions.Empty();
+
+    // one extension in the space or comma-delimited list
+    wxString strExt;
+    wxString::const_iterator end = strExtensions.end();
+    for ( wxString::const_iterator p = strExtensions.begin(); /* nothing */; ++p )
+    {
+        if ( p == end || *p == wxT(' ') || *p == wxT(',') )
+        {
+            if ( !strExt.empty() )
+            {
+                extensions.Add(strExt);
+                strExt.Empty();
+            }
+            //else: repeated spaces
+            // (shouldn't happen, but it's not that important if it does happen)
+
+            if ( p == end )
+                break;
+        }
+        else if ( *p == wxT('.') )
+        {
+            // remove the dot from extension (but only if it's the first char)
+            if ( !strExt.empty() )
+            {
+                strExt += wxT('.');
+            }
+            //else: no, don't append it
+        }
+        else
+        {
+            strExt += *p;
+        }
+    }
+
+    return true;
+}
+
+// set an arbitrary command:
+// could adjust the code to ask confirmation if it already exists and
+// overwriteprompt is true, but this is currently ignored as *Associate* has
+// no overwrite prompt
+bool
+wxFileTypeImpl::SetCommand(const wxString& cmd,
+                           const wxString& verb,
+                           bool WXUNUSED(overwriteprompt))
+{
+    wxArrayString strExtensions;
+    wxString strDesc, strIcon;
+
+    wxArrayString strTypes;
+    GetMimeTypes(strTypes);
+    if ( strTypes.IsEmpty() )
+        return false;
+
+    wxMimeTypeCommands *entry = new wxMimeTypeCommands();
+    entry->Add(verb + wxT("=")  + cmd + wxT(" %s "));
+
+    bool ok = false;
+    size_t nCount = strTypes.GetCount();
+    for ( size_t i = 0; i < nCount; i++ )
+    {
+        if ( m_manager->DoAssociation
+                        (
+                            strTypes[i],
+                            strIcon,
+                            entry,
+                            strExtensions,
+                            strDesc
+                        ) )
+        {
+            // DoAssociation() took ownership of entry, don't delete it below
+            ok = true;
+        }
+    }
+
+    if ( !ok )
+        delete entry;
+
+    return ok;
+}
+
+// ignore index on the grounds that we only have one icon in a Unix file
+bool wxFileTypeImpl::SetDefaultIcon(const wxString& strIcon, int WXUNUSED(index))
+{
+    if (strIcon.empty())
+        return false;
+
+    wxArrayString strExtensions;
+    wxString strDesc;
+
+    wxArrayString strTypes;
+    GetMimeTypes(strTypes);
+    if ( strTypes.IsEmpty() )
+        return false;
+
+    wxMimeTypeCommands *entry = new wxMimeTypeCommands();
+    bool ok = false;
+    size_t nCount = strTypes.GetCount();
+    for ( size_t i = 0; i < nCount; i++ )
+    {
+        if ( m_manager->DoAssociation
+                        (
+                            strTypes[i],
+                            strIcon,
+                            entry,
+                            strExtensions,
+                            strDesc
+                        ) )
+        {
+            // we don't need to free entry now, DoAssociation() took ownership
+            // of it
+            ok = true;
+        }
+    }
+
+    if ( !ok )
+        delete entry;
+
+    return ok;
+}
+
+// ----------------------------------------------------------------------------
+// wxMimeTypesManagerImpl (Unix)
+// ----------------------------------------------------------------------------
+
+wxMimeTypesManagerImpl::wxMimeTypesManagerImpl()
+{
+    m_initialized = false;
+}
+
+void wxMimeTypesManagerImpl::InitIfNeeded()
+{
+    if ( !m_initialized )
+    {
+        // set the flag first to prevent recursion
+        m_initialized = true;
+
+        wxString wm = wxTheApp->GetTraits()->GetDesktopEnvironment();
+
+        if (wm == wxT("KDE"))
+            Initialize( wxMAILCAP_KDE  );
+        else if (wm == wxT("GNOME"))
+            Initialize( wxMAILCAP_GNOME );
+        else
+            Initialize();
+    }
+}
+
+
+
+// read system and user mailcaps and other files
+void wxMimeTypesManagerImpl::Initialize(int mailcapStyles,
+                                        const wxString& sExtraDir)
+{
+#ifdef __VMS
+    // XDG tables are never installed on OpenVMS
+    return;
+#endif
+#if 0
+    // Read MIME type - extension associations
+    LoadXDGGlobs( "/usr/share/mime/globs" );
+    LoadXDGGlobs( "/usr/local/share/mime/globs" );
+
+    // Load desktop files for XDG, and then override them with the defaults.
+    // We will override them one desktop file at a time, rather
+    // than one mime type at a time, but it should be a reasonable
+    // heuristic.
+    {
+        wxString xdgDataHome = wxGetenv("XDG_DATA_HOME");
+        if ( xdgDataHome.empty() )
+            xdgDataHome = wxGetHomeDir() + "/.local/share";
+        wxString xdgDataDirs = wxGetenv("XDG_DATA_DIRS");
+        if ( xdgDataDirs.empty() )
+        {
+            xdgDataDirs = "/usr/local/share:/usr/share";
+            if (mailcapStyles & wxMAILCAP_GNOME)
+                xdgDataDirs += ":/usr/share/gnome:/opt/gnome/share";
+            if (mailcapStyles & wxMAILCAP_KDE)
+                xdgDataDirs += ":/usr/share/kde3:/opt/kde3/share";
+        }
+        if ( !sExtraDir.empty() )
+        {
+           xdgDataDirs += ':';
+           xdgDataDirs += sExtraDir;
+        }
+
+        wxArrayString dirs;
+        wxStringTokenizer tokenizer(xdgDataDirs, ":");
+        while ( tokenizer.HasMoreTokens() )
+        {
+            wxString p = tokenizer.GetNextToken();
+            dirs.Add(p);
+        }
+        dirs.insert(dirs.begin(), xdgDataHome);
+
+        wxString defaultsList;
+        size_t i;
+        for (i = 0; i < dirs.GetCount(); i++)
+        {
+            wxString f = dirs[i];
+            if (f.Last() != '/') f += '/';
+            f += "applications/defaults.list";
+            if (wxFileExists(f))
+            {
+                defaultsList = f;
+                break;
+            }
+        }
+
+        // Load application files and associate them to corresponding mime types.
+        size_t nDirs = dirs.GetCount();
+        for (size_t nDir = 0; nDir < nDirs; nDir++)
+        {
+            wxString dirStr = dirs[nDir];
+            if (dirStr.Last() != '/') dirStr += '/';
+            dirStr += "applications";
+            LoadXDGAppsFilesFromDir(dirStr);
+        }
+
+        if (!defaultsList.IsEmpty())
+        {
+            wxArrayString deskTopFilesSeen;
+
+            wxMimeTextFile textfile(defaultsList);
+            if ( textfile.Open() )
+            {
+                int nIndex = textfile.pIndexOf( wxT("[Default Applications]") );
+                if (nIndex != wxNOT_FOUND)
+                {
+                    for (i = nIndex+1; i < textfile.GetLineCount(); i++)
+                    {
+                        if (textfile.GetLine(i).Find(wxT("=")) != wxNOT_FOUND)
+                        {
+                            wxString mimeType = textfile.GetVerb(i);
+                            wxString desktopFile = textfile.GetCmd(i);
+
+                            if (deskTopFilesSeen.Index(desktopFile) == wxNOT_FOUND)
+                            {
+                                deskTopFilesSeen.Add(desktopFile);
+                                size_t j;
+                                for (j = 0; j < dirs.GetCount(); j++)
+                                {
+                                    wxString desktopPath = dirs[j];
+                                    if (desktopPath.Last() != '/') desktopPath += '/';
+                                    desktopPath += "applications/";
+                                    desktopPath += desktopFile;
+
+                                    if (wxFileExists(desktopPath))
+                                        LoadXDGApp(desktopPath);
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+#endif
+}
+
+// clear data so you can read another group of WM files
+void wxMimeTypesManagerImpl::ClearData()
+{
+    m_aTypes.Clear();
+    m_aIcons.Clear();
+    m_aExtensions.Clear();
+    m_aDescriptions.Clear();
+
+    WX_CLEAR_ARRAY(m_aEntries);
+    m_aEntries.Empty();
+}
+
+wxMimeTypesManagerImpl::~wxMimeTypesManagerImpl()
+{
+    ClearData();
+}
+
+wxFileType * wxMimeTypesManagerImpl::Associate(const wxFileTypeInfo& ftInfo)
+{
+    InitIfNeeded();
+
+    wxString strType = ftInfo.GetMimeType();
+    wxString strDesc = ftInfo.GetDescription();
+    wxString strIcon = ftInfo.GetIconFile();
+
+    wxMimeTypeCommands *entry = new wxMimeTypeCommands();
+
+    if ( ! ftInfo.GetOpenCommand().empty())
+        entry->Add(wxT("open=")  + ftInfo.GetOpenCommand() + wxT(" %s "));
+    if ( ! ftInfo.GetPrintCommand().empty())
+        entry->Add(wxT("print=") + ftInfo.GetPrintCommand() + wxT(" %s "));
+
+    // now find where these extensions are in the data store and remove them
+    wxArrayString sA_Exts = ftInfo.GetExtensions();
+    wxString sExt, sExtStore;
+    size_t i, nIndex;
+    size_t nExtCount = sA_Exts.GetCount();
+    for (i=0; i < nExtCount; i++)
+    {
+        sExt = sA_Exts.Item(i);
+
+        // clean up to just a space before and after
+        sExt.Trim().Trim(false);
+        sExt = wxT(' ') + sExt + wxT(' ');
+        size_t nCount = m_aExtensions.GetCount();
+        for (nIndex = 0; nIndex < nCount; nIndex++)
+        {
+            sExtStore = m_aExtensions.Item(nIndex);
+            if (sExtStore.Replace(sExt, wxT(" ") ) > 0)
+                m_aExtensions.Item(nIndex) = sExtStore;
+        }
+    }
+
+    if ( !DoAssociation(strType, strIcon, entry, sA_Exts, strDesc) )
+        return NULL;
+
+    return GetFileTypeFromMimeType(strType);
+}
+
+bool wxMimeTypesManagerImpl::DoAssociation(const wxString& strType,
+                                           const wxString& strIcon,
+                                           wxMimeTypeCommands *entry,
+                                           const wxArrayString& strExtensions,
+                                           const wxString& strDesc)
+{
+    int nIndex = AddToMimeData(strType, strIcon, entry, strExtensions, strDesc, true);
+
+    if ( nIndex == wxNOT_FOUND )
+        return false;
+
+    return true;
+}
+
+int wxMimeTypesManagerImpl::AddToMimeData(const wxString& strType,
+                                          const wxString& strIcon,
+                                          wxMimeTypeCommands *entry,
+                                          const wxArrayString& strExtensions,
+                                          const wxString& strDesc,
+                                          bool replaceExisting)
+{
+    InitIfNeeded();
+
+    // ensure mimetype is always lower case
+    wxString mimeType = strType.Lower();
+
+    // is this a known MIME type?
+    int nIndex = m_aTypes.Index(mimeType);
+    if ( nIndex == wxNOT_FOUND )
+    {
+        // new file type
+        m_aTypes.Add(mimeType);
+        m_aIcons.Add(strIcon);
+        m_aEntries.Add(entry ? entry : new wxMimeTypeCommands);
+
+        // change nIndex so we can use it below to add the extensions
+        m_aExtensions.Add(wxEmptyString);
+        nIndex = m_aExtensions.size() - 1;
+
+        m_aDescriptions.Add(strDesc);
+    }
+    else // yes, we already have it
+    {
+        if ( replaceExisting )
+        {
+            // if new description change it
+            if ( !strDesc.empty())
+                m_aDescriptions[nIndex] = strDesc;
+
+            // if new icon change it
+            if ( !strIcon.empty())
+                m_aIcons[nIndex] = strIcon;
+
+            if ( entry )
+            {
+                delete m_aEntries[nIndex];
+                m_aEntries[nIndex] = entry;
+            }
+        }
+        else // add data we don't already have ...
+        {
+            // if new description add only if none
+            if ( m_aDescriptions[nIndex].empty() )
+                m_aDescriptions[nIndex] = strDesc;
+
+            // if new icon and no existing icon
+            if ( m_aIcons[nIndex].empty() )
+                m_aIcons[nIndex] = strIcon;
+
+            // add any new entries...
+            if ( entry )
+            {
+                wxMimeTypeCommands *entryOld = m_aEntries[nIndex];
+
+                size_t count = entry->GetCount();
+                for ( size_t i = 0; i < count; i++ )
+                {
+                    const wxString& verb = entry->GetVerb(i);
+                    if ( !entryOld->HasVerb(verb) )
+                    {
+                        entryOld->AddOrReplaceVerb(verb, entry->GetCmd(i));
+                    }
+                }
+
+                // as we don't store it anywhere, it won't be deleted later as
+                // usual -- do it immediately instead
+                delete entry;
+            }
+        }
+    }
+
+    // always add the extensions to this mimetype
+    wxString& exts = m_aExtensions[nIndex];
+
+    // add all extensions we don't have yet
+    wxString ext;
+    size_t count = strExtensions.GetCount();
+    for ( size_t i = 0; i < count; i++ )
+    {
+        ext = strExtensions[i];
+        ext += wxT(' ');
+
+        if ( exts.Find(ext) == wxNOT_FOUND )
+        {
+            exts += ext;
+        }
+    }
+
+    // check data integrity
+    wxASSERT( m_aTypes.GetCount() == m_aEntries.GetCount() &&
+              m_aTypes.GetCount() == m_aExtensions.GetCount() &&
+              m_aTypes.GetCount() == m_aIcons.GetCount() &&
+              m_aTypes.GetCount() == m_aDescriptions.GetCount() );
+
+    return nIndex;
+}
+
+wxFileType * wxMimeTypesManagerImpl::GetFileTypeFromExtension(const wxString& ext)
+{
+    if (ext.empty() )
+        return NULL;
+
+    InitIfNeeded();
+
+    size_t count = m_aExtensions.GetCount();
+    for ( size_t n = 0; n < count; n++ )
+    {
+        wxStringTokenizer tk(m_aExtensions[n], wxT(' '));
+
+        while ( tk.HasMoreTokens() )
+        {
+            // consider extensions as not being case-sensitive
+            if ( tk.GetNextToken().IsSameAs(ext, false /* no case */) )
+            {
+                // found
+                wxFileType *fileType = new wxFileType;
+                fileType->m_impl->Init(this, n);
+
+                return fileType;
+            }
+        }
+    }
+
+    return NULL;
+}
+
+wxFileType * wxMimeTypesManagerImpl::GetFileTypeFromMimeType(const wxString& mimeType)
+{
+    InitIfNeeded();
+
+    wxFileType * fileType = NULL;
+    // mime types are not case-sensitive
+    wxString mimetype(mimeType);
+    mimetype.MakeLower();
+
+    // first look for an exact match
+    int index = m_aTypes.Index(mimetype);
+
+    if ( index != wxNOT_FOUND )
+    {
+        fileType = new wxFileType;
+        fileType->m_impl->Init(this, index);
+    }
+
+    // then try to find "text/*" as match for "text/plain" (for example)
+    // NB: if mimeType doesn't contain '/' at all, BeforeFirst() will return
+    //     the whole string - ok.
+
+    index = wxNOT_FOUND;
+    wxString strCategory = mimetype.BeforeFirst(wxT('/'));
+
+    size_t nCount = m_aTypes.GetCount();
+    for ( size_t n = 0; n < nCount; n++ )
+    {
+        if ( (m_aTypes[n].BeforeFirst(wxT('/')) == strCategory ) &&
+                m_aTypes[n].AfterFirst(wxT('/')) == wxT("*") )
+        {
+            index = n;
+            break;
+        }
+    }
+
+    if ( index != wxNOT_FOUND )
+    {
+       // don't throw away fileType that was already found
+        if (!fileType)
+            fileType = new wxFileType;
+        fileType->m_impl->Init(this, index);
+    }
+
+    return fileType;
+}
+
+wxString wxMimeTypesManagerImpl::GetCommand(const wxString & verb, size_t nIndex) const
+{
+    wxString command, testcmd, sV, sTmp;
+    sV = verb + wxT("=");
+
+    // list of verb = command pairs for this mimetype
+    wxMimeTypeCommands * sPairs = m_aEntries [nIndex];
+
+    size_t i;
+    size_t nCount = sPairs->GetCount();
+    for ( i = 0; i < nCount; i++ )
+    {
+        sTmp = sPairs->GetVerbCmd (i);
+        if ( sTmp.Contains(sV) )
+            command = sTmp.AfterFirst(wxT('='));
+    }
+
+    return command;
+}
+
+void wxMimeTypesManagerImpl::AddFallback(const wxFileTypeInfo& filetype)
+{
+    InitIfNeeded();
+
+    wxString extensions;
+    const wxArrayString& exts = filetype.GetExtensions();
+    size_t nExts = exts.GetCount();
+    for ( size_t nExt = 0; nExt < nExts; nExt++ )
+    {
+        if ( nExt > 0 )
+            extensions += wxT(' ');
+
+        extensions += exts[nExt];
+    }
+
+    AddMimeTypeInfo(filetype.GetMimeType(),
+                    extensions,
+                    filetype.GetDescription());
+}
+
+void wxMimeTypesManagerImpl::AddMimeTypeInfo(const wxString& strMimeType,
+                                             const wxString& strExtensions,
+                                             const wxString& strDesc)
+{
+    // reading mailcap may find image/* , while
+    // reading mime.types finds image/gif and no match is made
+    // this means all the get functions don't work  fix this
+    wxString strIcon;
+    wxString sTmp = strExtensions;
+
+    wxArrayString sExts;
+    sTmp.Trim().Trim(false);
+
+    while (!sTmp.empty())
+    {
+        sExts.Add(sTmp.AfterLast(wxT(' ')));
+        sTmp = sTmp.BeforeLast(wxT(' '));
+    }
+
+    AddToMimeData(strMimeType, strIcon, NULL, sExts, strDesc, true);
+}
+
+size_t wxMimeTypesManagerImpl::EnumAllFileTypes(wxArrayString& mimetypes)
+{
+    InitIfNeeded();
+
+    mimetypes.Empty();
+
+    size_t count = m_aTypes.GetCount();
+    for ( size_t n = 0; n < count; n++ )
+    {
+        // don't return template types from here (i.e. anything containg '*')
+        const wxString &type = m_aTypes[n];
+        if ( type.Find(wxT('*')) == wxNOT_FOUND )
+        {
+            mimetypes.Add(type);
+        }
+    }
+
+    return mimetypes.GetCount();
+}
+
+// ----------------------------------------------------------------------------
+// writing to MIME type files
+// ----------------------------------------------------------------------------
+
+bool wxMimeTypesManagerImpl::Unassociate(wxFileType *ft)
+{
+    InitIfNeeded();
+
+    wxArrayString sMimeTypes;
+    ft->GetMimeTypes(sMimeTypes);
+
+    size_t i;
+    size_t nCount = sMimeTypes.GetCount();
+    for (i = 0; i < nCount; i ++)
+    {
+        const wxString &sMime = sMimeTypes.Item(i);
+        int nIndex = m_aTypes.Index(sMime);
+        if ( nIndex == wxNOT_FOUND)
+        {
+            // error if we get here ??
+            return false;
+        }
+        else
+        {
+            m_aTypes.RemoveAt(nIndex);
+            m_aEntries.RemoveAt(nIndex);
+            m_aExtensions.RemoveAt(nIndex);
+            m_aDescriptions.RemoveAt(nIndex);
+            m_aIcons.RemoveAt(nIndex);
+        }
+    }
+    // check data integrity
+    wxASSERT( m_aTypes.GetCount() == m_aEntries.GetCount() &&
+            m_aTypes.GetCount() == m_aExtensions.GetCount() &&
+            m_aTypes.GetCount() == m_aIcons.GetCount() &&
+            m_aTypes.GetCount() == m_aDescriptions.GetCount() );
+
+    return true;
+}
+
+#endif
+  // wxUSE_MIMETYPE && wxUSE_FILE