f612924a45
copy constructor which takes an optional Cloner object, and the old osg::Object::clone() has changed so that it now requires a Cloner as paramter. This is passed on to the copy constructor to help control the shallow vs deep copying. The old functionality of clone() which was clone of type has been renamed to cloneType(). Updated all of the OSG to work with these new conventions, implemention all the required copy constructors etc. A couple of areas will do shallow copies by design, a couple of other still need to be updated to do either shallow or deep. Neither of the shallow or deep copy operations have been tested yet, only the old functionality of the OSG has been checked so far, such running the viewer on various demo datasets. Also fixed a problem in osg::Optimize::RemoveRendundentNodesVisitor which was not checking that Group didn't have have any attached StateSet's, Callbacks or UserData. These checks have now been added, which fixes a bug which was revealled by the new osgscribe demo, this related to removal of group acting as state decorator. method
76 lines
2.3 KiB
Plaintext
76 lines
2.3 KiB
Plaintext
//C++ header - Open Scene Graph - Copyright (C) 1998-2001 Robert Osfield
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//Distributed under the terms of the GNU Library General Public License (LGPL)
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//as published by the Free Software Foundation.
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#ifndef OSG_POINT
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#define OSG_POINT 1
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#include <osg/Vec3>
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#include <osg/StateAttribute>
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#include <osg/StateSet>
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namespace osg {
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/** Point - encapsulates the OpenGL point smoothing and size state.*/
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class SG_EXPORT Point : public StateAttribute
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{
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public :
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Point();
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/** Copy constructor using Cloner to manage deep vs shallow copy.*/
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Point(const Point& point,const Cloner& cloner=ShallowCopy()):
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StateAttribute(point,cloner),
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_size(point._size),
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_fadeThresholdSize(point._fadeThresholdSize),
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_distanceAttenuation(point._distanceAttenuation) {}
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META_StateAttribute(Point, POINT);
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/** return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs.*/
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virtual int compare(const StateAttribute& sa) const
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{
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// check the types are equal and then create the rhs variable
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// used by the COMPARE_StateAttribute_Paramter macro's below.
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COMPARE_StateAttribute_Types(Point,sa)
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// compare each paramter in turn against the rhs.
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COMPARE_StateAttribute_Parameter(_size)
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COMPARE_StateAttribute_Parameter(_fadeThresholdSize)
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COMPARE_StateAttribute_Parameter(_distanceAttenuation)
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return 0; // passed all the above comparison macro's, must be equal.
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}
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virtual void setStateSetModes(StateSet& ds,const GLModeValue value) const
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{
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ds.setMode(GL_POINT_SMOOTH,value);
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}
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void setSize(const float size);
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inline const float getSize() const { return _size; }
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void setFadeThresholdSize(const float fadeThresholdSize);
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inline const float getFadeThresholdSize() const { return _fadeThresholdSize; }
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void setDistanceAttenuation(const Vec3& distanceAttenuation);
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inline const Vec3& getDistanceAttenuation() const { return _distanceAttenuation; }
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virtual void apply(State& state) const;
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static void init_GL_EXT();
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protected :
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virtual ~Point();
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float _size;
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float _fadeThresholdSize;
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Vec3 _distanceAttenuation;
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};
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};
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#endif
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