asset_archive.h

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2021 KiCad Developers, see AUTHORS.txt for contributors.
 *
 * This program 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 3 of the License, or (at your
 * option) any later version.
 *
 * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef KICAD_ASSET_ARCHIVE_H
#define KICAD_ASSET_ARCHIVE_H
 
#include <kicommon.h>
#include <unordered_map>
#include <vector>
 
#include <core/wx_stl_compat.h>
 
class KICOMMON_API ASSET_ARCHIVE
{
public:
    ASSET_ARCHIVE( const wxString& aFilePath, bool aLoadNow = true );
 
    ~ASSET_ARCHIVE() = default;
 
    bool Load();
 
    long GetFileContents( const wxString& aFilePath, const unsigned char* aDest, size_t aMaxLen );
 
    long GetFilePointer( const wxString& aFilePath, const unsigned char** aDest );
 
private:
    struct FILE_INFO
    {
        size_t offset;
        size_t length;
    };
 
    std::unordered_map<wxString, FILE_INFO> m_fileInfoCache;
 
    std::vector<unsigned char> m_cache;
 
    wxString m_filePath;
};
 
#endif // KICAD_ASSET_ARCHIVE_H