180 lines
4.3 KiB
C++
180 lines
4.3 KiB
C++
/*****************************************************************************
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*
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* This file is part of Mapnik (c++ mapping toolkit)
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*
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* Copyright (C) 2006 Artem Pavlenko
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* Copyright (C) 2006 10East Corp.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*****************************************************************************/
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//$Id$
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#ifndef __TEXT_PATH_H__
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#define __TEXT_PATH_H__
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#include <boost/utility.hpp>
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#include <boost/shared_ptr.hpp>
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#include <unicode/unistr.h>
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namespace mapnik
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{
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struct character_info
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{
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int character;
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double width, height;
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character_info() : character(0), width(0), height(0) {}
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character_info(int c_, double width_, double height_) : character(c_), width(width_), height(height_) {}
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~character_info() {}
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character_info(const character_info &ci)
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: character(ci.character), width(ci.width), height(ci.height)
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{
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}
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};
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class string_info : private boost::noncopyable
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{
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protected:
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typedef boost::ptr_vector<character_info> characters_t;
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characters_t characters_;
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UnicodeString const& text_;
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double width_;
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double height_;
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public:
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string_info(UnicodeString const& text)
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: text_(text),
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width_(0),
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height_(0) {}
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void add_info(int c, double width, double height)
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{
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characters_.push_back(new character_info(c, width, height));
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}
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unsigned num_characters() const
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{
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return characters_.size();
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}
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character_info at(unsigned i) const
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{
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return characters_[i];
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}
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character_info operator[](unsigned i) const
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{
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return at(i);
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}
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void set_dimensions(double width, double height)
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{
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width_ = width;
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height_ = height;
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}
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std::pair<double, double> get_dimensions() const
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{
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return std::pair<double, double>(width_, height_);
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}
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UnicodeString const& get_string() const
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{
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return text_;
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}
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bool has_line_breaks() const
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{
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UChar break_char = '\n';
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return (text_.indexOf(break_char) >= 0);
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}
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};
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struct text_path : boost::noncopyable
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{
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struct character_node
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{
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int c;
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double x, y, angle;
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character_node(int c_, double x_, double y_, double angle_)
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: c(c_), x(x_), y(y_), angle(angle_) {}
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~character_node() {}
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void vertex(int *c_, double *x_, double *y_, double *angle_)
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{
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*c_ = c;
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*x_ = x;
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*y_ = y;
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*angle_ = angle;
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}
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};
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typedef std::vector<character_node> character_nodes_t;
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double starting_x;
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double starting_y;
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character_nodes_t nodes_;
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int itr_;
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std::pair<unsigned,unsigned> string_dimensions;
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text_path()
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: starting_x(0),
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starting_y(0),
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itr_(0) {}
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//text_path(text_path const& other) :
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// itr_(0),
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// nodes_(other.nodes_),
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// string_dimensions(other.string_dimensions)
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//{}
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~text_path() {}
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void add_node(int c, double x, double y, double angle)
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{
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nodes_.push_back(character_node(c, x, y, angle));
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}
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void vertex(int *c, double *x, double *y, double *angle)
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{
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nodes_[itr_++].vertex(c, x, y, angle);
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}
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void rewind()
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{
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itr_ = 0;
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}
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int num_nodes() const
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{
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return nodes_.size();
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}
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void clear()
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{
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nodes_.clear();
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}
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};
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typedef boost::shared_ptr<text_path> text_path_ptr;
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}
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#endif
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