| 1 | /* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield |
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| 2 | * |
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| 3 | * This library is open source and may be redistributed and/or modified under |
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| 4 | * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or |
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| 5 | * (at your option) any later version. The full license is in LICENSE file |
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| 6 | * included with this distribution, and on the openscenegraph.org website. |
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| 7 | * |
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| 8 | * This library is distributed in the hope that it will be useful, |
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| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 11 | * OpenSceneGraph Public License for more details. |
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| 12 | */ |
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| 13 | |
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| 14 | #ifndef OSG_HINT |
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| 15 | #define OSG_HINT 1 |
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| 16 | |
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| 17 | #include <osg/StateAttribute> |
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| 18 | |
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| 19 | namespace osg |
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| 20 | { |
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| 21 | |
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| 22 | class OSG_EXPORT Hint : public StateAttribute |
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| 23 | { |
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| 24 | public: |
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| 25 | |
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| 26 | Hint(): |
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| 27 | _target(GL_NONE), |
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| 28 | _mode(GL_DONT_CARE) {} |
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| 29 | |
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| 30 | Hint(GLenum target, GLenum mode): |
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| 31 | _target(target), |
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| 32 | _mode(mode) {} |
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| 33 | |
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| 34 | /** Copy constructor using CopyOp to manage deep vs shallow copy.*/ |
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| 35 | Hint(const Hint& hint,const CopyOp& copyop=CopyOp::SHALLOW_COPY): |
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| 36 | StateAttribute(hint,copyop), |
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| 37 | _target(hint._target), |
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| 38 | _mode(hint._mode) {} |
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| 39 | |
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| 40 | virtual osg::Object* cloneType() const { return new Hint( _target, GL_DONT_CARE ); } |
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| 41 | virtual osg::Object* clone(const osg::CopyOp& copyop) const { return new Hint(*this,copyop); } |
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| 42 | virtual bool isSameKindAs(const osg::Object* obj) const { return dynamic_cast<const Hint *>(obj)!=NULL; } |
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| 43 | virtual const char* libraryName() const { return "osg"; } |
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| 44 | virtual const char* className() const { return "Hint"; } |
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| 45 | virtual Type getType() const { return HINT; } |
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| 46 | |
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| 47 | virtual int compare(const StateAttribute& sa) const |
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| 48 | { |
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| 49 | // check the types are equal and then create the rhs variable |
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| 50 | // used by the COMPARE_StateAttribute_Parameter macros below. |
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| 51 | COMPARE_StateAttribute_Types(Hint,sa) |
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| 52 | |
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| 53 | // compare each parameter in turn against the rhs. |
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| 54 | COMPARE_StateAttribute_Parameter(_target) |
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| 55 | COMPARE_StateAttribute_Parameter(_mode) |
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| 56 | |
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| 57 | return 0; |
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| 58 | } |
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| 59 | |
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| 60 | /** Return the member identifier within the attribute's class type. Used for light number/clip plane number etc.*/ |
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| 61 | virtual unsigned int getMember() const { return static_cast<unsigned int>(_target); } |
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| 62 | |
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| 63 | void setTarget(GLenum target); |
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| 64 | inline GLenum getTarget() const { return _target; } |
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| 65 | |
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| 66 | inline void setMode(GLenum mode) { _mode = mode; } |
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| 67 | inline GLenum getMode() const { return _mode; } |
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| 68 | |
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| 69 | virtual void apply(State& state) const; |
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| 70 | |
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| 71 | protected: |
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| 72 | |
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| 73 | |
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| 74 | GLenum _target; |
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| 75 | GLenum _mode; |
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| 76 | }; |
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| 77 | |
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| 78 | |
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| 79 | } |
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| 80 | |
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| 81 | #endif |
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