mswfiletypes.h

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// Name:        mswfiletypes.h
// Author:      Joe Yates
// Purpose:     WIN32 file type information interface
// Created:     2004-11-25
// Copyright:   (c) Joe Yates
// License:     BSD license (see the file 'LICENSE.txt')

#ifndef __msw_filetypes_h__
#define __msw_filetypes_h__

#include "wx/defs.h"
#include "wx/string.h"
#include "wx/filetypes.h"
#include <wx/filename.h>

#include <map>

class wxWindowsFileTypes : public wxFileTypesImpl
  {
  private:
    class ExtensionCache : public std::map<wxString, wxArrayString *>
      {
      public:
        ~ExtensionCache()
          {
          }
      };
    class ClassCache : public std::map<wxString, wxString>
      {
      public:
        ~ClassCache()
          {
          }
      };

  public:
    wxWindowsFileTypes();
    ~wxWindowsFileTypes()
      {
      UnloadCaches();
      };

    bool              IsLoaded() const;
    wxString          GetFileType(const wxString& sFileURL) const;
    wxFileType2       LoadFileType(const wxString& sFileType) const;
    bool              SaveFileType(const wxFileType2& fti) const;
  
    wxArrayString     GetApplications(const wxString& sFileURL) const;
    bool              AddApplication(const wxString& sFileURL, const wxString& sNewApplication) const;
    bool              RemoveApplication(const wxString& sFileURL, const wxString& sApplication) const;
    wxString          GetCommand(const wxString& sApplicationId) const;
    bool              SetCommand(const wxString& sApplicationId, const wxString& sNewCommand) const;

    // TBI: should simply derive from wxObject and use its RTTI
    wxString          GetTypeName() const;
    //wxFileType2       LoadInfo(const wxString& sFileType) const;

  private:
    wxString          GetDescription(const wxString& sFileType) const;
    wxFileName        GetImagePath(const wxString& sFileType) const;
    wxString          GetDefaultCommand(const wxString& sFileType) const;
    wxArrayString     GetExtensions(const wxString& sFileType) const;

    wxString          GetClassFromExtension(const wxString& sExtension) const;

    // Caches
    void              LoadCaches();
    void              UnloadCaches();

  private:
    ClassCache *      cls;
    ExtensionCache *  ext;
  };

#endif
  // ndef __msw_filetypes_h__

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