116 lines
4.4 KiB
C++
116 lines
4.4 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 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 OSG_ProxyNode
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#define OSG_ProxyNode 1
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#include <osg/Group>
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namespace osg {
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/** ProxyNode.
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*/
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class OSG_EXPORT ProxyNode : public Group
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{
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public :
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ProxyNode();
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/** Copy constructor using CopyOp to manage deep vs shallow copy.*/
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ProxyNode(const ProxyNode&,const CopyOp& copyop=CopyOp::SHALLOW_COPY);
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META_Node(osg, ProxyNode);
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virtual void traverse(NodeVisitor& nv);
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virtual bool addChild(Node *child);
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virtual bool addChild(Node *child, const std::string& filename);
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virtual bool removeChildren(unsigned int pos,unsigned int numChildrenToRemove);
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/** Set the database path to prepend to children's filenames.*/
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void setDatabasePath(const std::string& path);
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/** Get the database path used to prepend to children's filenames.*/
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inline const std::string& getDatabasePath() const { return _databasePath; }
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typedef std::vector<std::string> FileNameList;
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void setFileName(unsigned int childNo, const std::string& filename) { expandFileNameListTo(childNo); _filenameList[childNo]=filename; }
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const std::string& getFileName(unsigned int childNo) const { return _filenameList[childNo]; }
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unsigned int getNumFileNames() const { return _filenameList.size(); }
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/** Modes which control how the center of object should be determined when computed which child is active.*/
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enum CenterMode
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{
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USE_BOUNDING_SPHERE_CENTER,
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USER_DEFINED_CENTER
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};
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/** Set how the center of object should be determined when computed which child is active.*/
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void setCenterMode(CenterMode mode) { _centerMode=mode; }
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/** Get how the center of object should be determined when computed which child is active.*/
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CenterMode getCenterMode() const { return _centerMode; }
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/** Modes which control how the proxynode external reference are loaded.*/
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enum LoadingExternalReferenceMode
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{
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LOAD_IMMEDIATELY,
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DEFER_LOADING_TO_DATABASE_PAGER,
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NO_AUTOMATIC_LOADING
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};
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/** Set how the child loading is done.*/
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void setLoadingExternalReferenceMode(LoadingExternalReferenceMode mode) { _loadingExtReference=mode; }
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/** Get the setted mode of loading.*/
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LoadingExternalReferenceMode getLoadingExternalReferenceMode() const { return _loadingExtReference; }
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/** Sets the object-space point which defines the center of the osg::ProxyNode.
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center is affected by any transforms in the hierarchy above the osg::ProxyNode.*/
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inline void setCenter(const Vec3& center) { _centerMode=USER_DEFINED_CENTER; _userDefinedCenter = center; }
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/** return the ProxyNode center point. */
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inline const Vec3& getCenter() const { if (_centerMode==USER_DEFINED_CENTER) return _userDefinedCenter; else return getBound().center(); }
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/** Set the object-space reference radius of the volume enclosed by the ProxyNode.
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* Used to determine the bounding sphere of the ProxyNode in the absence of any children.*/
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inline void setRadius(float radius) { _radius = radius; }
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/** Get the object-space radius of the volume enclosed by the ProxyNode.*/
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inline float getRadius() const { return _radius; }
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virtual BoundingSphere computeBound() const;
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protected :
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virtual ~ProxyNode() {}
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void expandFileNameListTo(unsigned int pos);
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FileNameList _filenameList;
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std::string _databasePath;
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LoadingExternalReferenceMode _loadingExtReference;
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CenterMode _centerMode;
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Vec3 _userDefinedCenter;
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float _radius;
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};
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}
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#endif
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