119 lines
4.5 KiB
C++
119 lines
4.5 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2013 Robert Osfield
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*
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* This library is open source and may be redistributed and/or modified under
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
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* (at your option) any later version. The full license is in LICENSE file
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* included with this distribution, and on the openscenegraph.org website.
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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
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* OpenSceneGraph Public License for more details.
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*/
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#ifndef OSGPRESENTATION_GROUP
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#define OSGPRESENTATION_GROUP 1
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#include <osg/MatrixTransform>
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#include <osg/ValueObject>
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#include <osgPresentation/Action>
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#include <sstream>
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namespace osgPresentation {
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typedef std::pair< osg::ref_ptr<osg::Object>, std::string> ObjectDescription;
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typedef std::list< ObjectDescription > PropertyList;
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/** META_Presentation macro define the standard clone, isSameKindAs, className
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* and accept methods. Use when subclassing from Node to make it
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* more convenient to define the required pure virtual methods.*/
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#define META_Presentation(name) \
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virtual osg::Object* cloneType() const { return new name (); } \
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virtual osg::Object* clone(const osg::CopyOp& copyop) const { return new name (*this,copyop); } \
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virtual bool isSameKindAs(const osg::Object* obj) const { return dynamic_cast<const name *>(obj)!=NULL; } \
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virtual const char* className() const { return #name; } \
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virtual const char* libraryName() const { return "osgPresentation"; } \
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virtual void accept(osg::NodeVisitor& nv) \
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{ \
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if (nv.validNodeMask(*this)) \
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{ \
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nv.pushOntoNodePath(this); \
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osgPresentation::Action* action = dynamic_cast<osgPresentation::Action*>(&nv); \
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if (action) action->apply(*this); \
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else nv.apply(*this); \
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nv.popFromNodePath(); \
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} \
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}
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/** osgPresentation::Group
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*/
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class OSGPRESENTATION_EXPORT Group : public osg::MatrixTransform
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{
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public :
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Group() {}
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/** Copy constructor using CopyOp to manage deep vs shallow copy. */
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Group(const Group& group,const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY) : osg::MatrixTransform(group,copyop) {}
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META_Presentation(Group);
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/** Convinience method that casts the named UserObject to osg::TemplateValueObject<T> and gets the value.
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* To use this template method you need to include the osg/ValueObject header.*/
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template<typename T>
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bool getProperty(const std::string& name, T& value) const
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{
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return getUserValue(name, value);
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}
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/** Convinience method that creates the osg::TemplateValueObject<T> to store the
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* specified value and adds it as a named UserObject.
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* To use this template method you need to include the osg/ValueObject header. */
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template<typename T>
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void setProperty(const std::string& name, const T& value)
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{
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setUserValue(name, value);
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}
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/** Check for named Property, if it doesn't exist on this object check parents recursively for instances.*/
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osg::Object* getPropertyObject(const std::string& name, bool checkParents = true);
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/** Check for name Property, and convert to desired template value where possible. */
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template<typename T>
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bool getPropertyValue(const std::string& name, T& value, bool checkParents = true)
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{
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osg::Object* object = getPropertyObject(name, checkParents);
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if (!object) return false;
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typedef osg::TemplateValueObject<T> UserValueObject;
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const UserValueObject* uvo = dynamic_cast<const UserValueObject*>(object);
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if (uvo)
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{
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value = uvo->getValue();
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return true;
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}
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osg::StringValueObject* svo = dynamic_cast<osg::StringValueObject*>(object);
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if (svo)
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{
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std::istringstream str(svo->getValue());
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str >> value;
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return !str.fail();
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}
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return false;
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}
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/** Get all types of Properties supported by Presentation Object type, return true if the Properties are supported, false otherwise.*/
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virtual bool getSupportedProperties(PropertyList&) { return false; }
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protected :
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virtual ~Group() {}
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};
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}
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#endif
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