/usr/include/osgEarthSymbology/Symbol is in libosgearth-dev 2.5.0+dfsg-8build1.
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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 | /* -*-c++-*- */
/* osgEarth - Dynamic map generation toolkit for OpenSceneGraph
* Copyright 2008-2013 Pelican Mapping
* http://osgearth.org
*
* osgEarth 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 of the License, or
* (at your option) any later version.
*
* This program 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 program. If not, see <http://www.gnu.org/licenses/>
*/
#ifndef OSGEARTHSYMBOLOGY_SYMBOL_H
#define OSGEARTHSYMBOLOGY_SYMBOL_H 1
#include <osgEarthSymbology/Common>
#include <osgEarth/Config>
#include <osgEarth/URI>
#include <osg/Referenced>
#include <vector>
#define META_Symbol(name) \
virtual bool isSameKindAs(const Symbol* rhs) const { return dynamic_cast<const name *>(rhs)!=NULL; } \
virtual const char* className() const { return #name; }
namespace osgEarth { namespace Symbology
{
class Style;
/**
* Abstract base class for all Symbol types.
*/
class OSGEARTHSYMBOLOGY_EXPORT Symbol : public osg::Referenced
{
public:
const URIContext& uriContext() const { return _uriContext; }
virtual Config getConfig() const { return Config(); }
public: // META_Symbol methods
virtual bool isSameKindAs(const Symbol* sym) const =0;
virtual const char* className() const =0;
protected:
URIContext _uriContext;
static bool match(const std::string& key, const char* pattern);
Symbol( const Config& conf =Config() );
virtual ~Symbol() { }
};
typedef std::vector<osg::ref_ptr<Symbol> > SymbolList;
/**
* A Factory that can create a Symbol from a Config
*/
class OSGEARTHSYMBOLOGY_EXPORT SymbolFactory : public osg::Referenced
{
public:
virtual Symbol* create( const Config& conf ) = 0;
virtual void parseSLD(const Config& c, Style& style) const = 0;
};
typedef std::list< osg::ref_ptr< SymbolFactory > > SymbolFactoryList;
/**
* A registry of Symbol plugins
*/
class OSGEARTHSYMBOLOGY_EXPORT SymbolRegistry : public osg::Referenced
{
public:
/**
* The singleton instance of the factory
*/
static SymbolRegistry* instance();
/*
* Adds a new SymbolFactory to the list
*/
void add( SymbolFactory* factory );
/**
* Creates a Symbol with the registered plugins from the given Config
*/
Symbol* create( const Config& conf );
/**
* Parses the given SLD config into the given Style using all of the registered symbols
*/
void parseSLD(const Config& c, Style& style) const;
protected:
SymbolRegistry();
SymbolFactoryList _factories;
};
template<class T>
struct SimpleSymbolFactory : public SymbolFactory
{
SimpleSymbolFactory(const std::string& key):_key(key){}
virtual Symbol* create(const Config& conf)
{
if (conf.key() == _key) return new T(conf);
return 0;
}
virtual void parseSLD(const Config& c, class Style& style) const
{
T::parseSLD( c, style );
}
std::string _key;
};
template<class T>
struct RegisterSymbolProxy
{
RegisterSymbolProxy( T* factory) { SymbolRegistry::instance()->add( factory ); }
RegisterSymbolProxy() { SymbolRegistry::instance()->add( new T ); }
};
#define OSGEARTH_REGISTER_SYMBOL( CLASSNAME )\
static osgEarth::Symbology::RegisterSymbolProxy<CLASSNAME> s_osgEarthRegisterSymbolProxy_##CLASSNAME;
#define OSGEARTH_REGISTER_SIMPLE_SYMBOL( KEY, CLASSNAME)\
static osgEarth::Symbology::RegisterSymbolProxy< osgEarth::Symbology::SimpleSymbolFactory<CLASSNAME> > s_osgEarthRegisterSymbolProxy_##CLASSNAME##KEY(new osgEarth::Symbology::SimpleSymbolFactory<CLASSNAME>(#KEY));
} } // namespace osgEarth::Symbology
#endif // OSGEARTH_SYMBOLOGY_SYMBOL_H
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