368 lines
9.1 KiB
C++
368 lines
9.1 KiB
C++
/*****************************************************************************
|
|
*
|
|
* 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_RULE_HPP
|
|
#define MAPNIK_RULE_HPP
|
|
|
|
// mapnik
|
|
#include <mapnik/building_symbolizer.hpp>
|
|
#include <mapnik/line_symbolizer.hpp>
|
|
#include <mapnik/line_pattern_symbolizer.hpp>
|
|
#include <mapnik/polygon_symbolizer.hpp>
|
|
#include <mapnik/polygon_pattern_symbolizer.hpp>
|
|
#include <mapnik/point_symbolizer.hpp>
|
|
#include <mapnik/raster_symbolizer.hpp>
|
|
#include <mapnik/shield_symbolizer.hpp>
|
|
#include <mapnik/text_symbolizer.hpp>
|
|
#include <mapnik/markers_symbolizer.hpp>
|
|
#include <mapnik/debug_symbolizer.hpp>
|
|
#include <mapnik/feature.hpp>
|
|
#include <mapnik/expression.hpp>
|
|
#include <mapnik/expression_string.hpp>
|
|
|
|
// boost
|
|
#include <boost/concept_check.hpp>
|
|
#include <boost/shared_ptr.hpp>
|
|
#include <boost/make_shared.hpp>
|
|
#include <boost/variant.hpp>
|
|
|
|
// stl
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
namespace mapnik
|
|
{
|
|
inline bool operator==(point_symbolizer const& lhs,
|
|
point_symbolizer const& rhs)
|
|
{
|
|
return (&lhs == &rhs);
|
|
}
|
|
inline bool operator==(line_symbolizer const& lhs,
|
|
line_symbolizer const& rhs)
|
|
{
|
|
return (&lhs == &rhs);
|
|
}
|
|
inline bool operator==(line_pattern_symbolizer const& lhs,
|
|
line_pattern_symbolizer const& rhs)
|
|
{
|
|
return (&lhs == &rhs);
|
|
}
|
|
|
|
inline bool operator==(polygon_symbolizer const& lhs,
|
|
polygon_symbolizer const& rhs)
|
|
{
|
|
return (&lhs == &rhs);
|
|
}
|
|
|
|
inline bool operator==(polygon_pattern_symbolizer const& lhs,
|
|
polygon_pattern_symbolizer const& rhs)
|
|
{
|
|
return (&lhs == &rhs);
|
|
}
|
|
|
|
inline bool operator==(raster_symbolizer const& lhs,
|
|
raster_symbolizer const& rhs)
|
|
{
|
|
return (&lhs == &rhs);
|
|
}
|
|
|
|
inline bool operator==(text_symbolizer const& lhs,
|
|
text_symbolizer const& rhs)
|
|
{
|
|
return (&lhs == &rhs);
|
|
}
|
|
|
|
inline bool operator==(shield_symbolizer const& lhs,
|
|
shield_symbolizer const& rhs)
|
|
{
|
|
return (&lhs == &rhs);
|
|
}
|
|
|
|
inline bool operator==(building_symbolizer const& lhs,
|
|
building_symbolizer const& rhs)
|
|
{
|
|
return (&lhs == &rhs);
|
|
}
|
|
|
|
inline bool operator==(markers_symbolizer const& lhs,
|
|
markers_symbolizer const& rhs)
|
|
{
|
|
return (&lhs == &rhs);
|
|
}
|
|
|
|
inline bool operator==(debug_symbolizer const& lhs,
|
|
debug_symbolizer const& rhs)
|
|
{
|
|
return (&lhs == &rhs);
|
|
}
|
|
|
|
typedef boost::variant<point_symbolizer,
|
|
line_symbolizer,
|
|
line_pattern_symbolizer,
|
|
polygon_symbolizer,
|
|
polygon_pattern_symbolizer,
|
|
raster_symbolizer,
|
|
shield_symbolizer,
|
|
text_symbolizer,
|
|
building_symbolizer,
|
|
markers_symbolizer,
|
|
debug_symbolizer> symbolizer;
|
|
|
|
class rule
|
|
{
|
|
public:
|
|
typedef std::vector<symbolizer> symbolizers;
|
|
private:
|
|
|
|
std::string name_;
|
|
double min_scale_;
|
|
double max_scale_;
|
|
symbolizers syms_;
|
|
expression_ptr filter_;
|
|
bool else_filter_;
|
|
bool also_filter_;
|
|
|
|
struct deepcopy_symbolizer : public boost::static_visitor<>
|
|
{
|
|
void operator () (raster_symbolizer & sym) const
|
|
{
|
|
raster_colorizer_ptr old_colorizer = sym.get_colorizer();
|
|
raster_colorizer_ptr new_colorizer = raster_colorizer_ptr();
|
|
new_colorizer->set_stops(old_colorizer->get_stops());
|
|
new_colorizer->set_default_mode(old_colorizer->get_default_mode());
|
|
new_colorizer->set_default_color(old_colorizer->get_default_color());
|
|
new_colorizer->set_epsilon(old_colorizer->get_epsilon());
|
|
sym.set_colorizer(new_colorizer);
|
|
}
|
|
|
|
void operator () (text_symbolizer & sym) const
|
|
{
|
|
copy_text_ptr(sym);
|
|
}
|
|
|
|
void operator () (shield_symbolizer & sym) const
|
|
{
|
|
copy_text_ptr(sym);
|
|
}
|
|
|
|
void operator () (building_symbolizer & sym) const
|
|
{
|
|
copy_height_ptr(sym);
|
|
}
|
|
|
|
template <typename T> void operator () (T &sym) const
|
|
{
|
|
boost::ignore_unused_variable_warning(sym);
|
|
}
|
|
|
|
private:
|
|
|
|
template <class T>
|
|
void copy_text_ptr(T & sym) const
|
|
{
|
|
boost::ignore_unused_variable_warning(sym);
|
|
MAPNIK_LOG_WARN(rule) << "rule: deep copying TextSymbolizers is broken!";
|
|
}
|
|
|
|
template <class T>
|
|
void copy_height_ptr(T & sym) const
|
|
{
|
|
std::string height_expr = to_expression_string(*sym.height());
|
|
sym.set_height(parse_expression(height_expr,"utf8"));
|
|
}
|
|
};
|
|
|
|
public:
|
|
rule()
|
|
: name_(),
|
|
min_scale_(0),
|
|
max_scale_(std::numeric_limits<double>::infinity()),
|
|
syms_(),
|
|
filter_(boost::make_shared<mapnik::expr_node>(true)),
|
|
else_filter_(false),
|
|
also_filter_(false) {}
|
|
|
|
rule(std::string const& name,
|
|
double min_scale_denominator=0,
|
|
double max_scale_denominator=std::numeric_limits<double>::infinity())
|
|
: name_(name),
|
|
min_scale_(min_scale_denominator),
|
|
max_scale_(max_scale_denominator),
|
|
syms_(),
|
|
filter_(boost::make_shared<mapnik::expr_node>(true)),
|
|
else_filter_(false),
|
|
also_filter_(false) {}
|
|
|
|
rule(const rule& rhs, bool deep_copy = false)
|
|
: name_(rhs.name_),
|
|
min_scale_(rhs.min_scale_),
|
|
max_scale_(rhs.max_scale_),
|
|
syms_(rhs.syms_),
|
|
filter_(rhs.filter_),
|
|
else_filter_(rhs.else_filter_),
|
|
also_filter_(rhs.also_filter_)
|
|
{
|
|
if (deep_copy) {
|
|
|
|
std::string expr = to_expression_string(*filter_);
|
|
filter_ = parse_expression(expr,"utf8");
|
|
symbolizers::const_iterator it = syms_.begin();
|
|
symbolizers::const_iterator end = syms_.end();
|
|
|
|
for(; it != end; ++it)
|
|
{
|
|
boost::apply_visitor(deepcopy_symbolizer(),*it);
|
|
}
|
|
}
|
|
}
|
|
|
|
rule& operator=(rule const& rhs)
|
|
{
|
|
rule tmp(rhs);
|
|
swap(tmp);
|
|
return *this;
|
|
}
|
|
bool operator==(rule const& other)
|
|
{
|
|
return (this == &other);
|
|
}
|
|
|
|
void set_max_scale(double scale)
|
|
{
|
|
max_scale_=scale;
|
|
}
|
|
|
|
double get_max_scale() const
|
|
{
|
|
return max_scale_;
|
|
}
|
|
|
|
void set_min_scale(double scale)
|
|
{
|
|
min_scale_=scale;
|
|
}
|
|
|
|
double get_min_scale() const
|
|
{
|
|
return min_scale_;
|
|
}
|
|
|
|
void set_name(std::string const& name)
|
|
{
|
|
name_=name;
|
|
}
|
|
|
|
std::string const& get_name() const
|
|
{
|
|
return name_;
|
|
}
|
|
|
|
void append(const symbolizer& sym)
|
|
{
|
|
syms_.push_back(sym);
|
|
}
|
|
|
|
void remove_at(size_t index)
|
|
{
|
|
if (index < syms_.size())
|
|
{
|
|
syms_.erase(syms_.begin()+index);
|
|
}
|
|
}
|
|
|
|
const symbolizers& get_symbolizers() const
|
|
{
|
|
return syms_;
|
|
}
|
|
|
|
symbolizers::const_iterator begin() const
|
|
{
|
|
return syms_.begin();
|
|
}
|
|
|
|
symbolizers::const_iterator end() const
|
|
{
|
|
return syms_.end();
|
|
}
|
|
|
|
symbolizers::iterator begin()
|
|
{
|
|
return syms_.begin();
|
|
}
|
|
|
|
symbolizers::iterator end()
|
|
{
|
|
return syms_.end();
|
|
}
|
|
|
|
void set_filter(const expression_ptr& filter)
|
|
{
|
|
filter_=filter;
|
|
}
|
|
|
|
expression_ptr const& get_filter() const
|
|
{
|
|
return filter_;
|
|
}
|
|
|
|
void set_else(bool else_filter)
|
|
{
|
|
else_filter_=else_filter;
|
|
}
|
|
|
|
bool has_else_filter() const
|
|
{
|
|
return else_filter_;
|
|
}
|
|
|
|
void set_also(bool also_filter)
|
|
{
|
|
also_filter_=also_filter;
|
|
}
|
|
|
|
bool has_also_filter() const
|
|
{
|
|
return also_filter_;
|
|
}
|
|
|
|
bool active(double scale) const
|
|
{
|
|
return ( scale >= min_scale_ - 1e-6 && scale < max_scale_ + 1e-6);
|
|
}
|
|
|
|
private:
|
|
|
|
void swap(rule& rhs) throw()
|
|
{
|
|
name_=rhs.name_;
|
|
min_scale_=rhs.min_scale_;
|
|
max_scale_=rhs.max_scale_;
|
|
syms_=rhs.syms_;
|
|
filter_=rhs.filter_;
|
|
else_filter_=rhs.else_filter_;
|
|
also_filter_=rhs.also_filter_;
|
|
}
|
|
};
|
|
|
|
}
|
|
|
|
#endif // MAPNIK_RULE_HPP
|