1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
/*****************************************************************************
*
* This file is part of Mapnik (c++ mapping toolkit)
*
* Copyright (C) 2006 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
*
*****************************************************************************/
// $Id$
#ifndef SHAPE_HPP
#define SHAPE_HPP
#include <mapnik/datasource.hpp>
#include <mapnik/box2d.hpp>
#include <boost/shared_ptr.hpp>
#include "shape_io.hpp"
using mapnik::datasource;
using mapnik::parameters;
using mapnik::query;
using mapnik::featureset_ptr;
using mapnik::layer_descriptor;
using mapnik::coord2d;
class shape_datasource : public datasource
{
public:
shape_datasource(const parameters ¶ms, bool bind=true);
virtual ~shape_datasource();
int type() const;
static std::string name();
featureset_ptr features(const query& q) const;
featureset_ptr features_at_point(coord2d const& pt) const;
box2d<double> envelope() const;
layer_descriptor get_descriptor() const;
void bind() const;
private:
shape_datasource(const shape_datasource&);
shape_datasource& operator=(const shape_datasource&);
void init(shape_io& shape) const;
private:
int type_;
std::string shape_name_;
mutable boost::shared_ptr<shape_io> shape_;
mutable long file_length_;
mutable box2d<double> extent_;
mutable bool indexed_;
const int row_limit_;
mutable layer_descriptor desc_;
};
#endif //SHAPE_HPP
|
