/* === S Y N F I G ========================================================= */
/*! \file filecontainerzip.h
** \brief FileContainerZip
**
** $Id$
**
** \legal
** ......... ... 2013 Ivan Mahonin
**
** This package 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.
**
** This package 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.
** \endlegal
*/
/* ========================================================================= */
/* === S T A R T =========================================================== */
#ifndef __SYNFIG_FILECONTAINERZIP_H
#define __SYNFIG_FILECONTAINERZIP_H
/* === H E A D E R S ======================================================= */
#include <map>
#include <ctime>
#include "filecontainer.h"
/* === M A C R O S ========================================================= */
/* === T Y P E D E F S ===================================================== */
/* === C L A S S E S & S T R U C T S ======================================= */
namespace synfig
{
class FileContainerZip: public FileContainer
{
public:
typedef etl::handle<FileContainerZip> Handle;
class WholeZipReadStream : public FileSystem::ReadStream
{
public:
typedef etl::handle<WholeZipReadStream> Handle;
protected:
friend class FileContainerZip;
WholeZipReadStream(FileSystem::Handle file_system);
public:
virtual ~WholeZipReadStream();
virtual size_t read(void *buffer, size_t size);
};
typedef long long int file_size_t;
struct HistoryRecord {
file_size_t prev_storage_size;
file_size_t storage_size;
inline explicit HistoryRecord(file_size_t prev_storage_size = 0, file_size_t storage_size = 0):
prev_storage_size(prev_storage_size), storage_size(storage_size) { }
};
private:
struct FileInfo
{
String name;
bool is_directory;
bool directory_saved;
file_size_t size;
file_size_t header_offset;
unsigned int compression;
unsigned int crc32;
time_t time;
String name_part_directory;
String name_part_localname;
void split_name();
inline FileInfo():
is_directory(false), directory_saved(false),
size(0), header_offset(0), compression(0), crc32(0), time(0) { }
};
typedef std::map< String, FileInfo > FileMap;
FILE *storage_file_;
FileMap files_;
file_size_t prev_storage_size_;
bool file_reading_whole_container_;
bool file_reading_;
bool file_writing_;
FileMap::iterator file_;
file_size_t file_processed_size_;
bool changed_;
static unsigned int crc32(unsigned int previous_crc, const void *buffer, size_t size);
static String encode_history(const HistoryRecord &history_record);
static HistoryRecord decode_history(const String &comment);
static void read_history(std::list<HistoryRecord> &list, FILE *f, file_size_t size);
public:
FileContainerZip();
virtual ~FileContainerZip();
virtual bool create(const String &container_filename);
virtual bool open(const String &container_filename);
bool open_from_history(const String &container_filename, file_size_t truncate_storage_size = 0);
virtual void close();
virtual bool is_opened();
bool save();
static std::list<HistoryRecord> read_history(const String &container_filename);
virtual bool is_file(const String &filename);
virtual bool is_directory(const String &filename);
bool directory_check_name(const String &dirname);
virtual bool directory_create(const String &dirname);
virtual bool directory_scan(const String &dirname, FileList &out_files);
virtual bool file_remove(const String &filename);
bool file_check_name(const String &filename);
virtual bool file_open_read_whole_container();
virtual bool file_open_read(const String &filename);
virtual bool file_open_write(const String &filename);
virtual void file_close();
virtual bool file_is_opened_for_read();
virtual bool file_is_opened_for_write();
virtual size_t file_read(void *buffer, size_t size);
virtual size_t file_write(const void *buffer, size_t size);
virtual FileSystem::ReadStream::Handle get_read_stream(const String &filename);
};
}
/* === E N D =============================================================== */
#endif