BlendColor
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/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* OpenSceneGraph Public License for more details.
*/
#ifndef OSG_BLENDCOLOR
#define OSG_BLENDCOLOR 1
#include <osg/GL>
#include <osg/StateAttribute>
#include <osg/ref_ptr>
#include <osg/Vec4>
namespace osg {
class OSG_EXPORT BlendColor : public StateAttribute
{
public :
BlendColor();
BlendColor(const osg::Vec4& constantColor);
BlendColor(const BlendColor& trans,const CopyOp& copyop=CopyOp::SHALLOW_COPY):
StateAttribute(trans,copyop),
_constantColor(trans._constantColor) {}
META_StateAttribute(osg, BlendColor,BLENDCOLOR);
virtual int compare(const StateAttribute& sa) const
{
// Check for equal types, then create the rhs variable
// used by the COMPARE_StateAttribute_Parameter macros below.
COMPARE_StateAttribute_Types(BlendColor,sa)
// Compare each parameter in turn against the rhs.
COMPARE_StateAttribute_Parameter(_constantColor)
return 0; // Passed all the above comparison macros, so must be equal.
}
virtual bool getModeUsage(StateAttribute::ModeUsage& usage) const
{
usage.usesMode(GL_BLEND);
return true;
}
void setConstantColor(const osg::Vec4& color) { _constantColor = color; }
inline osg::Vec4& getConstantColor() { return _constantColor; }
inline const osg::Vec4& getConstantColor() const { return _constantColor; }
virtual void apply(State& state) const;
protected :
virtual ~BlendColor();
osg::Vec4 _constantColor;
};
}
#endif
StateAttribute
COMPARE_StateAttribute_Parameter
#define COMPARE_StateAttribute_Parameter(parameter)
Definition StateAttribute:69
COMPARE_StateAttribute_Types
#define COMPARE_StateAttribute_Types(TYPE, rhs_attribute)
Definition StateAttribute:57
Vec4
osg::BlendColor::getConstantColor
const osg::Vec4 & getConstantColor() const
Definition BlendColor:64
osg::BlendColor::BlendColor
BlendColor()
osg::BlendColor::BlendColor
BlendColor(const BlendColor &trans, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
Definition BlendColor:35
osg::BlendColor::~BlendColor
virtual ~BlendColor()
osg::BlendColor::_constantColor
osg::Vec4 _constantColor
Definition BlendColor:72
osg::BlendColor::apply
virtual void apply(State &state) const
osg::BlendColor::META_StateAttribute
META_StateAttribute(osg, BlendColor, BLENDCOLOR)
osg::BlendColor::BlendColor
BlendColor(const osg::Vec4 &constantColor)
osg::BlendColor::compare
virtual int compare(const StateAttribute &sa) const
Definition BlendColor:42
osg::BlendColor::getModeUsage
virtual bool getModeUsage(StateAttribute::ModeUsage &usage) const
Definition BlendColor:54
osg::BlendColor::getConstantColor
osg::Vec4 & getConstantColor()
Definition BlendColor:62
osg::BlendColor::setConstantColor
void setConstantColor(const osg::Vec4 &color)
Definition BlendColor:60
osg::CopyOp
Definition CopyOp:41
osg::CopyOp::SHALLOW_COPY
@ SHALLOW_COPY
Definition CopyOp:47
osg::StateAttribute::StateAttribute
StateAttribute()
osg::StateAttribute::BLENDCOLOR
@ BLENDCOLOR
Definition StateAttribute:157
osg::State
Definition State:80
osg
Definition AlphaFunc:19
osg::Vec4
Vec4f Vec4
Definition Vec4:21
OSG_EXPORT
#define OSG_EXPORT
Definition osg/Export:39
ref_ptr
osg::StateAttribute::ModeUsage
Definition StateAttribute:308
osg::StateAttribute::ModeUsage::usesMode
virtual void usesMode(GLMode mode)=0