/usr/include/mapnik/gradient.hpp is in libmapnik-dev 2.2.0+ds1-6build2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 | /*****************************************************************************
*
* This file is part of Mapnik (c++ mapping toolkit)
*
* Copyright (C) 2011 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 MAPNIK_GRADIENT_HPP
#define MAPNIK_GRADIENT_HPP
// agg
#include <agg_trans_affine.h>
// mapnik
#include <mapnik/color.hpp>
#include <mapnik/enumeration.hpp>
// stl
#include <vector>
namespace mapnik
{
typedef std::pair<double, mapnik::color> stop_pair;
typedef std::vector<stop_pair > stop_array;
enum gradient_enum
{
NO_GRADIENT,
LINEAR,
RADIAL,
gradient_enum_MAX
};
DEFINE_ENUM( gradient_e, gradient_enum );
enum gradient_unit_enum
{
USER_SPACE_ON_USE,
USER_SPACE_ON_USE_BOUNDING_BOX, // used to indicate % age values were specified. This are % of the svg image extent.
OBJECT_BOUNDING_BOX, // (i.e., the abstract coordinate system where (0,0) is at the top/left of the object bounding box and (1,1) is at the bottom/right of the object bounding box)
gradient_unit_enum_MAX
};
DEFINE_ENUM( gradient_unit_e, gradient_unit_enum );
class MAPNIK_DECL gradient
{
gradient_e gradient_type_;
stop_array stops_;
// control points for the gradient, x1/y1 is the start point, x2/y2 the stop point.
double x1_;
double y1_;
double x2_;
double y2_;
// for radial gradients r specifies the radius of the stop circle centered on x2/y2
double r_;
// units for the coordinates
gradient_unit_e units_;
// transform
agg::trans_affine transform_;
public:
gradient();
gradient(gradient const& other);
gradient& operator=(const gradient& rhs);
void set_gradient_type(gradient_e grad);
gradient_e get_gradient_type() const;
void set_transform(agg::trans_affine const& transform);
agg::trans_affine const& get_transform() const;
void set_units(gradient_unit_e units);
gradient_unit_e get_units() const;
void add_stop(double offset, color const& c);
bool has_stop() const;
stop_array const& get_stop_array() const;
void set_control_points(double x1, double y1, double x2, double y2, double r=0);
void get_control_points(double &x1, double &y1, double &x2, double &y2, double &r) const;
void get_control_points(double &x1, double &y1, double &x2, double &y2) const;
private:
void swap(const gradient& other) throw();
};
}
#endif // MAPNIK_GRADIENT_HPP
|