/usr/include/mapnik/text_path.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.
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*
* 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_TEXT_PATH_HPP
#define MAPNIK_TEXT_PATH_HPP
// mapnik
#include <mapnik/char_info.hpp>
#include <mapnik/pixel_position.hpp>
#include <mapnik/noncopyable.hpp>
//stl
#include <vector>
// boost
#include <boost/shared_ptr.hpp>
// uci
#include <unicode/unistr.h>
namespace mapnik
{
class string_info : private mapnik::noncopyable
{
protected:
typedef std::vector<char_info> characters_t;
characters_t characters_;
UnicodeString text_;
bool is_rtl;
public:
string_info(UnicodeString const& text)
: characters_(),
text_(text),
is_rtl(false)
{
}
string_info()
: characters_(),
text_(),
is_rtl(false)
{
}
void add_info(char_info const& info)
{
characters_.push_back(info);
}
void add_text(UnicodeString text)
{
text_ += text;
}
unsigned num_characters() const
{
return characters_.size();
}
void set_rtl(bool value)
{
is_rtl = value;
}
bool get_rtl() const
{
return is_rtl;
}
char_info const& at(unsigned i) const
{
return characters_[i];
}
char_info const& operator[](unsigned i) const
{
return at(i);
}
UnicodeString const& get_string() const
{
return text_;
}
bool has_line_breaks() const
{
UChar break_char = '\n';
return (text_.indexOf(break_char) >= 0);
}
// Resets object to initial state.
void clear()
{
text_.remove();
characters_.clear();
}
};
typedef char_info const * char_info_ptr;
// List of all characters and their positions and formats for a placement.
class text_path : mapnik::noncopyable
{
struct character_node
{
char_info_ptr c;
pixel_position pos;
double angle;
character_node(char_info_ptr c_, double x_, double y_, double angle_)
: c(c_),
pos(x_, y_),
angle(angle_)
{
}
~character_node() {}
void vertex(char_info_ptr & c_, double & x_, double & y_, double & angle_) const
{
c_ = c;
x_ = pos.x;
y_ = pos.y;
angle_ = angle;
}
};
mutable int itr_;
public:
typedef std::vector<character_node> character_nodes_t;
pixel_position center;
character_nodes_t nodes_;
text_path(double x, double y)
: itr_(0),
center(x,y),
nodes_()
{
}
~text_path() {}
/** Adds a new char to the list. */
void add_node(char_info_ptr c, double x, double y, double angle)
{
nodes_.push_back(character_node(c, x, y, angle));
}
/** Return node. Always returns a new node. Has no way to report that there are no more nodes. */
void vertex(char_info_ptr & c, double & x, double & y, double & angle) const
{
nodes_[itr_++].vertex(c, x, y, angle);
}
/** Start again at first node. */
void rewind() const
{
itr_ = 0;
}
/** Number of nodes. */
int num_nodes() const
{
return nodes_.size();
}
/** Delete all nodes. */
void clear()
{
nodes_.clear();
}
};
typedef boost::shared_ptr<text_path> text_path_ptr;
}
#endif // MAPNIK_TEXT_PATH_HPP
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