ThumbCache.h

Go to the documentation of this file.

//
// ThumbCache.h
//
// Copyright (c) Shareaza Development Team, 2002-2005.
// This file is part of SHAREAZA (www.shareaza.com)
//
// Shareaza is free software; you can redistribute it
// and/or modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2 of
// the License, or (at your option) any later version.
//
// Shareaza is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Shareaza; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//

#if !defined(AFX_THUMBCACHE_H__EDC6DF1A_071C_4171_A709_C7CCD7FAE56A__INCLUDED_)
#define AFX_THUMBCACHE_H__EDC6DF1A_071C_4171_A709_C7CCD7FAE56A__INCLUDED_

#pragma once

class CImageFile;

typedef struct
{
        DWORD           nIndex;
        DWORD           nOffset;
        DWORD           nLength;
        FILETIME        pTime;
} THUMB_INDEX;


class CThumbCache
{
// Construction
public:
        CThumbCache();
        virtual ~CThumbCache();

// Attributes
protected:
        CCriticalSection m_pSection;
protected:
        CString         m_sPath;
        CFile           m_pFile;
        BOOL            m_bOpen;
        CSize           m_szThumb;
protected:
        DWORD                   m_nOffset;
        THUMB_INDEX*    m_pIndex;
        DWORD                   m_nIndex;
        DWORD                   m_nBuffer;

// Operations
public:
        BOOL    Load(LPCTSTR pszPath, CSize* pszThumb, DWORD nIndex, CImageFile* pImage);
        BOOL    Store(LPCTSTR pszPath, CSize* pszThumb, DWORD nIndex, CImageFile* pImage);
        void    Close();
protected:
        BOOL    Prepare(LPCTSTR pszPath, CSize* pszThumb, BOOL bCreate);
        BOOL    GetFileTime(LPCTSTR pszPath, FILETIME* pTime);
public:
        static BOOL Purge(LPCTSTR pszPath);

};

#endif // !defined(AFX_THUMBCACHE_H__EDC6DF1A_071C_4171_A709_C7CCD7FAE56A__INCLUDED_)

---