#include <string>
#include <cstring>
+#include <osg/Object>
#include <osgDB/Registry>
#include <boost/bind.hpp>
#include <simgear/math/SGMath.hxx>
#include <simgear/props/AtomicChangeListener.hxx>
#include <simgear/props/props.hxx>
+#include <simgear/scene/util/SGReaderWriterOptions.hxx>
#include <simgear/structure/exception.hxx>
#include <simgear/structure/SGSharedPtr.hxx>
#include <simgear/structure/Singleton.hxx>
{
class Effect;
class Pass;
+class SGReaderWriterOptions;
/**
* Builder that returns an object, probably an OSG object.
{
public:
virtual ~EffectBuilder() {}
- virtual T* build(Effect* effect, const SGPropertyNode*,
- const osgDB::ReaderWriter::Options* options) = 0;
- static T* buildFromType(Effect* effect, const std::string& type,
+ virtual T* build(Effect* effect, Pass* pass, const SGPropertyNode*,
+ const SGReaderWriterOptions* options) = 0;
+ static T* buildFromType(Effect* effect, Pass* pass, const std::string& type,
const SGPropertyNode*props,
- const osgDB::ReaderWriter::Options* options)
+ const SGReaderWriterOptions* options)
{
BuilderMap& builderMap = getMap();
typename BuilderMap::iterator iter = builderMap.find(type);
if (iter != builderMap.end())
- return iter->second->build(effect, props, options);
+ return iter->second->build(effect, pass, props, options);
else
return 0;
}
template<typename FromType,typename ToType>
struct bidirectional_map
{
+#if _MSC_VER >= 1600
+ struct value_type {
+ FromType first;
+ ToType second;
+ value_type(FromType f, ToType s) : first(f),second(s){}
+ };
+#else
typedef std::pair<FromType,ToType> value_type;
+#endif
/* A bidirectional map can be simulated as a multi_index_container
* of pairs of (FromType,ToType) with two unique indices, one
* for each member of the pair.
*/
-
typedef multi_index_container<
value_type,
indexed_by<
_map.insert(typename BMap::value_type(attrs[i].first, attrs[i].second));
}
+// A one-way map that can be initialized using an array
+template<typename T>
+struct SimplePropertyMap
+{
+ typedef std::map<string, T> map_type;
+ map_type _map;
+ template<int N>
+ SimplePropertyMap(const EffectNameValue<T> (&attrs)[N])
+ {
+ for (int i = 0; i < N; ++i)
+ _map.insert(typename map_type::value_type(attrs[i].first,
+ attrs[i].second));
+ }
+};
+
class BuilderException : public sg_exception
{
public:
findAttr(pMap, name, result);
}
+// Versions that don't throw an error
+
+template<typename T>
+const T* findAttr(const effect::EffectPropertyMap<T>& pMap,
+ const char* name)
+{
+ using namespace effect;
+ typename EffectPropertyMap<T>::BMap::iterator itr
+ = pMap._map.get<from>().find(name);
+ if (itr == pMap._map.end())
+ return 0;
+ else
+ return &itr->second;
+}
+
+template<typename T>
+const T* findAttr(const effect::SimplePropertyMap<T>& pMap,
+ const char* name)
+{
+ using namespace effect;
+ typename SimplePropertyMap<T>::map_type::const_iterator itr
+ = pMap._map.find(name);
+ if (itr == pMap._map.end())
+ return 0;
+ else
+ return &itr->second;
+}
+
+template<typename T, template<class> class Map>
+const T* findAttr(const Map<T>& pMap,
+ const std::string& name)
+{
+ return findAttr(pMap, name.c_str());
+}
+
+
template<typename T>
std::string findName(const effect::EffectPropertyMap<T>& pMap, T value)
{
* @return empty if prop doesn't contain a <use> clause; otherwise the
* mentioned node name.
*/
-std::string getGlobalProperty(const SGPropertyNode* prop);
+std::string getGlobalProperty(const SGPropertyNode* prop,
+ const SGReaderWriterOptions *);
+
+template<typename NameItr>
+std::vector<std::string>
+getVectorProperties(const SGPropertyNode* prop,
+ const SGReaderWriterOptions *options, size_t vecSize,
+ NameItr defaultNames)
+{
+ using namespace std;
+ vector<string> result;
+ if (!prop)
+ return result;
+ PropertyList useProps = prop->getChildren("use");
+ if (useProps.size() == 1) {
+ string parentName = useProps[0]->getStringValue();
+ if (parentName.size() == 0 || parentName[0] != '/')
+ parentName = options->getPropertyNode()->getPath() + "/" + parentName;
+ if (parentName[parentName.size() - 1] != '/')
+ parentName.append("/");
+ NameItr itr = defaultNames;
+ for (size_t i = 0; i < vecSize; ++i, ++itr)
+ result.push_back(parentName + *itr);
+ } else if (useProps.size() == vecSize) {
+ string parentName = useProps[0]->getStringValue();
+ parentName += "/";
+ for (PropertyList::const_iterator itr = useProps.begin(),
+ end = useProps.end();
+ itr != end;
+ ++itr) {
+ string childName = (*itr)->getStringValue();
+ if (childName.size() == 0 || childName[0] != '/')
+ result.push_back(parentName + childName);
+ else
+ result.push_back(childName);
+ }
+ }
+ return result;
+}
class PassAttributeBuilder : public SGReferenced
{
struct PassAttrMapSingleton : public simgear::Singleton<PassAttrMapSingleton>
{
PassAttrMap passAttrMap;
+
};
public:
+ virtual ~PassAttributeBuilder(); // anchor into the compilation unit.
+
virtual void buildAttribute(Effect* effect, Pass* pass,
const SGPropertyNode* prop,
- const osgDB::ReaderWriter::Options* options)
+ const SGReaderWriterOptions* options)
= 0;
static PassAttributeBuilder* find(const std::string& str)
{
namespace effect
{
/**
- * Bridge between types stored in properties and what OSG wants.
+ * Bridge between types stored in properties and what OSG or the
+ * effects code want.
*/
-template<typename T> struct OSGBridge;
+template<typename T> struct Bridge;
+
+/**
+ * Default just passes on the same type.
+ *
+ */
+template<typename T>
+struct Bridge
+{
+ typedef T sg_type;
+ static T get(const T& val) { return val; }
+};
template<typename T>
-struct OSGBridge<const T> : public OSGBridge<T>
+struct Bridge<const T> : public Bridge<T>
{
};
+// Save some typing...
+template<typename InType, typename OutType>
+struct BridgeOSGVec
+{
+ typedef InType sg_type;
+ static OutType get(const InType& val) { return toOsg(val); }
+};
template<>
-struct OSGBridge<osg::Vec3f>
+struct Bridge<osg::Vec3f> : public BridgeOSGVec<SGVec3d, osg::Vec3f>
{
- typedef SGVec3d sg_type;
- static osg::Vec3f getOsgType(const SGVec3d& val) { return toOsg(val); }
};
template<>
-struct OSGBridge<osg::Vec3d>
+struct Bridge<osg::Vec3d> : public BridgeOSGVec<SGVec3d, osg::Vec3d>
{
- typedef SGVec3d sg_type;
- static osg::Vec3d getOsgType(const SGVec3d& val) { return toOsg(val); }
};
template<>
-struct OSGBridge<osg::Vec4f>
+struct Bridge<osg::Vec4f> : public BridgeOSGVec<SGVec4d, osg::Vec4f>
{
- typedef SGVec4d sg_type;
- static osg::Vec4f getOsgType(const SGVec4d& val) { return toOsg(val); }
};
template<>
-struct OSGBridge<osg::Vec4d>
+struct Bridge<osg::Vec4d> : public BridgeOSGVec<SGVec4d, osg::Vec4d>
+{
+};
+
+/**
+ * Functor for calling a function on an osg::Referenced object and a
+ * value (e.g., an SGVec4d from a property) which will be converted to
+ * the equivalent OSG type.
+ *
+ * General version, function takes obj, val
+ */
+template<typename OSGParam, typename Obj, typename Func>
+struct OSGFunctor : public Bridge<OSGParam>
{
- typedef SGVec4d sg_type;
- static osg::Vec4d getOsgType(const SGVec4d& val) { return toOsg(val); }
+ OSGFunctor(Obj* obj, const Func& func)
+ : _obj(obj), _func(func) {}
+ void operator()(const typename Bridge<OSGParam>::sg_type& val) const
+ {
+ _func(_obj, this->get(val));
+ }
+ osg::ref_ptr<Obj>_obj;
+ const Func _func;
};
-template<typename Obj, typename OSGParam>
-struct OSGFunctor : public OSGBridge<OSGParam>
+/**
+ * Version which uses a pointer to member function instead.
+ */
+template<typename OSGParam, typename Obj>
+struct OSGFunctor<OSGParam, Obj, void (Obj::* const)(const OSGParam&)>
+ : public Bridge<OSGParam>
{
- OSGFunctor(Obj* obj, void (Obj::*func)(const OSGParam&))
+ typedef void (Obj::*const MemFunc)(const OSGParam&);
+ OSGFunctor(Obj* obj, MemFunc func)
: _obj(obj), _func(func) {}
- void operator()(const typename OSGBridge<OSGParam>::sg_type& val) const
+ void operator()(const typename Bridge<OSGParam>::sg_type& val) const
{
- ((_obj.get())->*_func)(this->getOsgType(val));
+ (_obj->*_func)(this->get(val));
}
osg::ref_ptr<Obj>_obj;
- void (Obj::*_func)(const OSGParam&);
+ MemFunc _func;
};
-template<typename ObjType, typename OSGParamType>
+/**
+ * Typical convenience constructors
+ */
+template<typename OSGParam, typename Obj, typename Func>
+OSGFunctor<OSGParam, Obj, Func> make_OSGFunctor(Obj* obj, const Func& func)
+{
+ return OSGFunctor<OSGParam, Obj, Func>(obj, func);
+}
+
+template<typename OSGParam, typename Obj>
+OSGFunctor<OSGParam, Obj, void (Obj::*const)(const OSGParam&)>
+make_OSGFunctor(Obj* obj, void (Obj::*const func)(const OSGParam&))
+{
+ return OSGFunctor<OSGParam, Obj,
+ void (Obj::* const)(const OSGParam&)>(obj, func);
+}
+
+template<typename OSGParamType, typename ObjType, typename F>
class ScalarChangeListener
: public SGPropertyChangeListener, public InitializeWhenAdded,
public Effect::Updater
{
public:
- typedef void (ObjType::*setter_type)(const OSGParamType);
- ScalarChangeListener(ObjType* obj, setter_type setter,
+ ScalarChangeListener(ObjType* obj, const F& setter,
const std::string& propName)
: _obj(obj), _setter(setter)
{
}
void valueChanged(SGPropertyNode* node)
{
- _obj->*setter(node->getValue<OSGParamType>());
+ _setter(_obj.get(), node->getValue<OSGParamType>());
}
void initOnAddImpl(Effect* effect, SGPropertyNode* propRoot)
{
}
private:
osg::ref_ptr<ObjType> _obj;
- setter_type _setter;
+ F _setter;
std::string* _propName;
};
public:
template<typename Itr>
EffectExtendedPropListener(const Func& func,
- const std::string& propName, Itr childNamesBegin,
+ const std::string* propName, Itr childNamesBegin,
Itr childNamesEnd)
- : _func(func)
+ : _propName(0), _func(func)
{
- _propName = new std::string(propName);
+ if (propName)
+ _propName = new std::string(*propName);
_childNames = new std::vector<std::string>(childNamesBegin,
childNamesEnd);
}
}
void initOnAddImpl(Effect* effect, SGPropertyNode* propRoot)
{
- SGPropertyNode* parent = propRoot->getNode(*_propName, true);
+ SGPropertyNode* parent = 0;
+ if (_propName)
+ parent = propRoot->getNode(*_propName, true);
+ else
+ parent = propRoot;
_propListener
= new ExtendedPropListener<T, Func>(parent, _childNames->begin(),
_childNames->end(),
Func _func;
};
+template<typename T, typename Func, typename Itr>
+Effect::Updater*
+new_EEPropListener(const Func& func, const std::string* propName,
+ const Itr& namesBegin, const Itr& namesEnd)
+{
+ return new EffectExtendedPropListener<T, Func>
+ (func, 0, namesBegin, namesEnd);
+}
+
+/**
+ * Set DYNAMIC data variance on an osg::Object.
+ */
+
+inline void setDynamicVariance(void* obj)
+{
+}
+
+inline void setDynamicVariance(osg::Object* obj)
+{
+ obj->setDataVariance(osg::Object::DYNAMIC);
+}
+
/**
* Initialize the value and the possible updating of an effect
* attribute. If the value is specified directly, set it. Otherwise,
* own <use> tag referring to a property in the global property tree;
* install a change listener that will set the attribute when the
* property changes.
+ *
+ * For relative property names, the property root found in options is
+ * used.
*/
-template<typename ObjType, typename OSGParamType>
+template<typename OSGParamType, typename ObjType, typename F>
void
initFromParameters(Effect* effect, const SGPropertyNode* prop, ObjType* obj,
- void (ObjType::*setter)(const OSGParamType))
+ const F& setter, const SGReaderWriterOptions* options)
{
const SGPropertyNode* valProp = getEffectPropertyNode(effect, prop);
if (!valProp)
return;
+ setDynamicVariance(obj);
if (valProp->nChildren() == 0) {
- obj->*setter(valProp->getValue<OSGParamType>());
+ setter(obj, valProp->getValue<OSGParamType>());
} else {
- std::string propName = getGlobalProperty(prop);
- ScalarChangeListener<ObjType, OSGParamType>* listener
- = new ScalarChangeListener<ObjType, OSGParamType>(obj, setter,
- propName);
+ std::string propName = getGlobalProperty(valProp, options);
+ ScalarChangeListener<OSGParamType, ObjType, F>* listener
+ = new ScalarChangeListener<OSGParamType, ObjType, F>(obj, setter,
+ propName);
effect->addUpdater(listener);
}
}
-template<typename ObjType, typename OSGParamType, typename NameItrType>
+template<typename OSGParamType, typename ObjType, typename SetterReturn>
+inline void
+initFromParameters(Effect* effect, const SGPropertyNode* prop, ObjType* obj,
+ SetterReturn (ObjType::*setter)(const OSGParamType),
+ const SGReaderWriterOptions* options)
+{
+ initFromParameters<OSGParamType>(effect, prop, obj,
+ boost::bind(setter, _1, _2), options);
+}
+
+/*
+ * Initialize vector parameters from individual properties.
+ * The parameter may be updated at runtime.
+ *
+ * If the value is specified directly, set it. Otherwise, use the
+ * <use> tag to look at the parameters. Again, if there is a value
+ * there set it directly. Otherwise, the parameter contains one or several
+ * <use> tags. If there is one tag, it is a property that is the root
+ * for the values needed to update the parameter; nameIter holds the
+ * names of the properties relative to the root. If there are several
+ * <use> tags, they each hold the name of the property holding the
+ * value for the corresponding vector member.
+ *
+ * Install a change listener that will set the attribute when the
+ * property changes.
+ *
+ * For relative property names, the property root found in options is
+ * used.
+ */
+template<typename OSGParamType, typename ObjType, typename NameItrType,
+ typename F>
void
initFromParameters(Effect* effect, const SGPropertyNode* prop, ObjType* obj,
- void (ObjType::*setter)(const OSGParamType&),
- NameItrType nameItr)
+ const F& setter,
+ NameItrType nameItr, const SGReaderWriterOptions* options)
{
- typedef typename OSGBridge<OSGParamType>::sg_type sg_type;
+ typedef typename Bridge<OSGParamType>::sg_type sg_type;
+ const int numComponents = props::NumComponents<sg_type>::num_components;
const SGPropertyNode* valProp = getEffectPropertyNode(effect, prop);
if (!valProp)
return;
- if (valProp->nChildren() == 0) {
- (obj->*setter)(OSGBridge<OSGParamType>
- ::getOsgType(valProp->getValue<sg_type>()));
+ setDynamicVariance(obj);
+ if (valProp->nChildren() == 0) { // Has <use>?
+ setter(obj, Bridge<OSGParamType>::get(valProp->getValue<sg_type>()));
} else {
- string listenPropName = getGlobalProperty(valProp);
- if (listenPropName.empty())
- return;
- typedef OSGFunctor<ObjType, OSGParamType> Functor;
+ std::vector<std::string> paramNames
+ = getVectorProperties(valProp, options,numComponents, nameItr);
+ if (paramNames.empty())
+ throw BuilderException();
+ std::vector<std::string>::const_iterator pitr = paramNames.begin();
Effect::Updater* listener
- = new EffectExtendedPropListener<sg_type, Functor>
- (Functor(obj, setter), listenPropName, nameItr,
- nameItr + props::NumComponents<sg_type>::num_components);
+ = new_EEPropListener<sg_type>(make_OSGFunctor<OSGParamType>
+ (obj, setter),
+ 0, pitr, pitr + numComponents);
effect->addUpdater(listener);
}
}
+template<typename OSGParamType, typename ObjType, typename NameItrType,
+ typename SetterReturn>
+inline void
+initFromParameters(Effect* effect, const SGPropertyNode* prop, ObjType* obj,
+ SetterReturn (ObjType::*setter)(const OSGParamType&),
+ NameItrType nameItr, const SGReaderWriterOptions* options)
+{
+ initFromParameters<OSGParamType>(effect, prop, obj,
+ boost::bind(setter, _1, _2), nameItr,
+ options);
+}
extern const char* colorFields[];
}
}
projects / simgear.git / blobdiff