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76 lines
2.1 KiB
C++
76 lines
2.1 KiB
C++
#pragma once
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/*
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* CZipLoader.h, part of VCMI engine
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*
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* Authors: listed in file AUTHORS in main folder
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*
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* License: GNU General Public License v2.0 or later
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* Full text of license available in license.txt file, in main folder
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*
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*/
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#include "ISimpleResourceLoader.h"
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#include "CInputStream.h"
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#include "ResourceID.h"
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#include "CCompressedStream.h"
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// Necessary here in order to get all types
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#ifdef USE_SYSTEM_MINIZIP
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#include <minizip/unzip.h>
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#else
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#include "../minizip/unzip.h"
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#endif
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class DLL_LINKAGE CZipStream : public CBufferedStream
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{
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unzFile file;
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public:
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/**
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* @brief constructs zip stream from already opened file
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* @param archive path to archive to open
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* @param filepos position of file to open
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*/
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CZipStream(const std::string & archive, unz_file_pos filepos);
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~CZipStream();
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si64 getSize() override;
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ui32 calculateCRC32() override;
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protected:
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si64 readMore(ui8 * data, si64 size) override;
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};
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class DLL_LINKAGE CZipLoader : public ISimpleResourceLoader
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{
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std::string archiveName;
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std::string mountPoint;
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std::unordered_map<ResourceID, unz_file_pos> files;
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std::unordered_map<ResourceID, unz_file_pos> listFiles(const std::string & mountPoint, const std::string &archive);
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public:
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CZipLoader(const std::string & mountPoint, const std::string & archive);
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/// Interface implementation
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/// @see ISimpleResourceLoader
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std::unique_ptr<CInputStream> load(const ResourceID & resourceName) const override;
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bool existsResource(const ResourceID & resourceName) const override;
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std::string getMountPoint() const override;
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std::unordered_set<ResourceID> getFilteredFiles(std::function<bool(const ResourceID &)> filter) const override;
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};
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namespace ZipArchive
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{
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/// List all files present in archive
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std::vector<std::string> DLL_LINKAGE listFiles(std::string filename);
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/// extracts all files from archive "from" into destination directory "where". Directory must exist
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bool DLL_LINKAGE extract(std::string from, std::string where);
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///same as above, but extracts only files mentioned in "what" list
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bool DLL_LINKAGE extract(std::string from, std::string where, std::vector<std::string> what);
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}
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