FileManager.h

//-----------------------------------------------------------------------------
// Copyright (C) 2004 - 2006 ParaEngine Dev Studio, All Rights Reserved.
// Date:    2005.3
// Description: API for File IO in ParaEngine
//-----------------------------------------------------------------------------
#pragma once
#include "FileHandle.h"
#include "FilePath.h"
#include "FileSearchResult.h"
#include "ParaFile.h"

#if defined(PARAENGINE_MOBILE)
    #define USE_COCOS_FILE_API
#else
    #if !defined(WIN32) || !defined(PARAENGINE_CLIENT) //  || defined(_DEBUG)
        #define USE_BOOST_FILE_API
    #endif
#endif

namespace ParaEngine
{
    using namespace std;
    class CArchive;
    class CParaFile;
    class CSearchResult;
    class BlockReadWriteLock;

    class CFileManager : public ISearchPathManager
    {
    public:
        CFileManager(void);
        virtual ~CFileManager(void);
        
        ATTRIBUTE_DEFINE_CLASS(CFileManager);
        virtual int InstallFields(CAttributeClass* pClass, bool bOverride);

        virtual IAttributeFields* GetChildAttributeObject(const std::string& sName);
        virtual int GetChildAttributeObjectCount(int nColumnIndex = 0);
        virtual IAttributeFields* GetChildAttributeObject(int nRowIndex, int nColumnIndex = 0);


        PE_CORE_DECL static CFileManager * GetInstance();
    public:
        
        PE_CORE_DECL bool OpenArchive(const string&  path, bool bUseRelativePath=false);
        
        PE_CORE_DECL bool OpenArchiveEx(const string&  path, const string&  sRootDir);

        PE_CORE_DECL void CloseArchive(const string&  path);

        PE_CORE_DECL CArchive* GetArchive(const string&  path);

        PE_CORE_DECL void LoadFile(CParaFile* pFile, const char* fileName);

        
        PE_CORE_DECL bool OpenFile(const char* filename, FileHandle& handle);

        PE_CORE_DECL DWORD GetFileSize(FileHandle& handle);

        PE_CORE_DECL bool ReadFile(FileHandle& handle,LPVOID lpBuffer,DWORD nNumberOfBytesToRead,LPDWORD lpNumberOfBytesRead);

        PE_CORE_DECL bool ReadFileRaw(FileHandle& handle,LPVOID* lppBuffer,LPDWORD pnCompressedSize, LPDWORD pnUncompressedSize);

        PE_CORE_DECL bool CloseFile(FileHandle& hFile);

        PE_CORE_DECL CSearchResult* SearchFiles(const string& sRootPath, const string& sFilePattern, const string& sZipArchive, int nSubLevel=0, int nMaxFilesNum=50, int nFrom=0);

        PE_CORE_DECL bool DoesFileExist(const char* filename);

    protected:
        list <CArchive*> m_archivers;
        int m_priority;
        BlockReadWriteLock* m_pArchiveLock;
    private:
        static void FindDiskFiles(CSearchResult& result, const string& sRootPath, const string& sFilePattern, int nSubLevel);

        friend class CParaFile;
    };
}