/**************************************************************************\
 * Copyright (c) Kongsberg Oil & Gas Technologies AS
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 * 
 * Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 * 
 * Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * 
 * Neither the name of the copyright holder nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
\**************************************************************************/

/*!
  \class SoPointSizeElement Inventor/elements/SoPointSizeElement.h
  \brief The SoPointSizeElement changes the pointsize setting of the render state.
  \ingroup elements

  Requests from the scenegraph to change the pointsize when rendering
  point primitives will be made through this element.

  The SoPointSizeElement class itself is just a generic abstraction
  for the underlying So*PointSizeElement classes with code specific
  for each supported immediate mode rendering library.
*/

#include <Inventor/elements/SoPointSizeElement.h>


#include <cassert>

SO_ELEMENT_SOURCE(SoPointSizeElement);

// Doc in super.
void
SoPointSizeElement::initClass(void)
{
  SO_ELEMENT_INIT_CLASS(SoPointSizeElement, inherited);
}

/*!
  Destructor.
*/
SoPointSizeElement::~SoPointSizeElement(void)
{
}

// Doc in super.
void
SoPointSizeElement::init(SoState * state)
{
  inherited::init(state);
  this->data = SoPointSizeElement::getDefault();
}

/*!
  Static method for setting the current \a pointSize value in the
  given traversal \a state.
*/
void
SoPointSizeElement::set(SoState * const state, SoNode * const node,
                        const float pointSize)
{
  inherited::set(SoPointSizeElement::classStackIndex, state, node, pointSize);
}

/*!
  Static method for setting the current \a pointSize value in the
  given traversal \a state.
*/
void
SoPointSizeElement::set(SoState * const state, const float pointSize)
{
  SoPointSizeElement::set(state, NULL, pointSize);
}

/*!
  Static method for returning the current pointsize setting in the
  given traversal \a state.
*/
float
SoPointSizeElement::get(SoState * const state)
{
  return inherited::get(SoPointSizeElement::classStackIndex, state);
}

/*!
  Returns default pointsize setting.
*/
float
SoPointSizeElement::getDefault(void)
{
  return 0.0f;
}
