75 lines
2.1 KiB
C++
75 lines
2.1 KiB
C++
/*****************************************************************************
|
|
*
|
|
* This file is part of Mapnik (c++ mapping toolkit)
|
|
*
|
|
* Copyright (C) 2024 Artem Pavlenko
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*
|
|
*****************************************************************************/
|
|
|
|
#ifndef DBFFILE_HPP
|
|
#define DBFFILE_HPP
|
|
|
|
// mapnik
|
|
#include <mapnik/feature.hpp>
|
|
#include <mapnik/util/noncopyable.hpp>
|
|
#include <mapnik/unicode.hpp>
|
|
|
|
#include <mapnik/util/mapped_memory_file.hpp>
|
|
|
|
// stl
|
|
#include <vector>
|
|
#include <string>
|
|
#include <cassert>
|
|
#include <fstream>
|
|
|
|
struct field_descriptor
|
|
{
|
|
int index_;
|
|
std::string name_;
|
|
char type_;
|
|
int length_;
|
|
int dec_;
|
|
std::streampos offset_;
|
|
};
|
|
|
|
class dbf_file : public mapnik::util::mapped_memory_file
|
|
{
|
|
private:
|
|
int num_records_;
|
|
int num_fields_;
|
|
std::size_t record_length_;
|
|
std::vector<field_descriptor> fields_;
|
|
char* record_;
|
|
|
|
public:
|
|
dbf_file();
|
|
dbf_file(std::string const& file_name);
|
|
~dbf_file();
|
|
int num_records() const;
|
|
int num_fields() const;
|
|
field_descriptor const& descriptor(int col) const;
|
|
void move_to(int index);
|
|
std::string string_value(int col) const;
|
|
void add_attribute(int col, mapnik::transcoder const& tr, mapnik::feature_impl& f) const;
|
|
|
|
private:
|
|
void read_header();
|
|
int read_short();
|
|
int read_int();
|
|
};
|
|
|
|
#endif // DBFFILE_HPP
|