mirror of
https://github.com/leozide/leocad
synced 2024-12-27 21:58:37 +01:00
82 lines
2.5 KiB
C++
82 lines
2.5 KiB
C++
#pragma once
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#include "lc_array.h"
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#ifdef DeleteFile
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#undef DeleteFile
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#endif
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class lcFile;
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// Date/time info.
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struct tm_unz
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{
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lcuint32 tm_sec; // seconds after the minute - [0,59]
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lcuint32 tm_min; // minutes after the hour - [0,59]
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lcuint32 tm_hour; // hours since midnight - [0,23]
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lcuint32 tm_mday; // day of the month - [1,31]
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lcuint32 tm_mon; // months since January - [0,11]
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lcuint32 tm_year; // years - [1980..2044]
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};
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// Information about a file in the zipfile.
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struct lcZipFileInfo
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{
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lcuint16 version; // version made by 2 bytes
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lcuint16 version_needed; // version needed to extract 2 bytes
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lcuint16 flag; // general purpose bit flag 2 bytes
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lcuint16 compression_method; // compression method 2 bytes
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lcuint32 dosDate; // last mod file date in Dos fmt 4 bytes
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lcuint32 crc; // crc-32 4 bytes
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lcuint64 compressed_size; // compressed size 8 bytes
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lcuint64 uncompressed_size; // uncompressed size 8 bytes
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lcuint16 size_filename; // filename length 2 bytes
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lcuint16 size_file_extra; // extra field length 2 bytes
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lcuint16 size_file_comment; // file comment length 2 bytes
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lcuint16 disk_num_start; // disk number start 2 bytes
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lcuint16 internal_fa; // internal file attributes 2 bytes
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lcuint32 external_fa; // external file attributes 4 bytes
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lcuint64 offset_curfile; // relative offset of local header 8 bytes
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char file_name[256];
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tm_unz tmu_date;
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lcMemFile* write_buffer;
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bool deleted;
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};
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class lcZipFile
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{
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public:
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lcZipFile();
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~lcZipFile();
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bool OpenRead(const QString& FileName);
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bool OpenRead(lcFile* File);
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bool OpenWrite(const QString& FileName);
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bool ExtractFile(int FileIndex, lcMemFile& File, lcuint32 MaxLength = 0xffffffff);
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bool ExtractFile(const char* FileName, lcMemFile& File, lcuint32 MaxLength = 0xffffffff);
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lcArray<lcZipFileInfo> mFiles;
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protected:
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bool Open();
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bool ReadCentralDir();
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lcuint64 SearchCentralDir();
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lcuint64 SearchCentralDir64();
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bool CheckFileCoherencyHeader(int FileIndex, lcuint32* SizeVar, lcuint64* OffsetLocalExtraField, lcuint32* SizeLocalExtraField);
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QMutex mMutex;
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lcFile* mFile;
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bool mModified;
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bool mZip64;
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lcuint64 mNumEntries;
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lcuint64 mCentralDirSize;
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lcuint64 mCentralDirOffset;
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lcuint64 mBytesBeforeZipFile;
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lcuint64 mCentralPos;
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};
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