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/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2004 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_LINEWIDTH
#define OSG_LINEWIDTH 1
#include <osg/StateAttribute>
namespace osg {
/** LineWidth - encapsulates the OpenGL glLineWidth for setting the width of lines in pixels. */
class OSG_EXPORT LineWidth : public StateAttribute
{
public :
LineWidth(float width=1.0f);
/** Copy constructor using CopyOp to manage deep vs shallow copy. */
LineWidth(const LineWidth& lw,const CopyOp& copyop=CopyOp::SHALLOW_COPY) :
StateAttribute(lw,copyop),
_width(lw._width) {}
META_StateAttribute(osg, LineWidth, LINEWIDTH);
/** return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs. */
virtual int compare(const StateAttribute& sa) const
{
// check if the types are equal and then create the rhs variable
// used by the COMPARE_StateAttribute_Parameter macros below.
COMPARE_StateAttribute_Types(LineWidth,sa)
// compare each parameter in turn against the rhs.
COMPARE_StateAttribute_Parameter(_width)
return 0; // passed all the above comparison macros, must be equal.
}
void setWidth(float width);
inline float getWidth() const { return _width; }
virtual void apply(State& state) const;
protected :
virtual ~LineWidth();
float _width;
};
}
#endif
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