file_access_zip.h

/*************************************************************************/
/*  file_access_zip.h                                                    */
/*************************************************************************/
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/*                           GODOT ENGINE                                */
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/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur.                 */
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#ifdef MINIZIP_ENABLED

#ifndef FILE_ACCESS_Zip_H
#define FILE_ACCESS_Zip_H

#include <stdlib.h>
#include "core/io/file_access_pack.h"
#include "unzip.h"
#include "map.h"

class ZipArchive : public PackSource {

public:

    struct File {

        int package;
        unz_file_pos file_pos;
        File() {

            package = -1;
        };
    };


private:

    struct Package {
        String filename;
        unzFile zfile;
    };
    Vector<Package> packages;

    Map<String,File> files;

    static ZipArchive* instance;

    FileAccess::CreateFunc fa_create_func;

public:

    void close_handle(unzFile p_file) const;
    unzFile get_file_handle(String p_file) const;

    Error add_package(String p_name);

    bool file_exists(String p_name) const;

    virtual bool try_open_pack(const String& p_path);
    FileAccess* get_file(const String& p_path, PackedData::PackedFile* p_file);

    static ZipArchive* get_singleton();

    ZipArchive();
    ~ZipArchive();
};


class FileAccessZip : public FileAccess {

    unzFile zfile;
    unz_file_info64 file_info;

    mutable bool at_eof;

    ZipArchive* archive;

public:

    virtual Error _open(const String& p_path, int p_mode_flags); 
    virtual void close(); 
    virtual bool is_open() const; 

    virtual void seek(size_t p_position); 
    virtual void seek_end(int64_t p_position=0); 
    virtual size_t get_pos() const; 
    virtual size_t get_len() const; 

    virtual bool eof_reached() const; 

    virtual uint8_t get_8() const; 
    virtual int get_buffer(uint8_t *p_dst,int p_length) const;

    virtual Error get_error() const; 

    virtual void store_8(uint8_t p_dest); 
    virtual bool file_exists(const String& p_name); 

    virtual uint64_t _get_modified_time(const String& p_file) { return 0; } // todo

    FileAccessZip(const String& p_path, const PackedData::PackedFile& p_file);
    ~FileAccessZip();
};

#endif // FILE_ACCESS_ZIP_H

#endif