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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#pragma once
/** \file
* \ingroup freestyle
* \brief Abstract class for scene graph nodes. Inherits from BaseObject which defines the addRef
* release mechanism.
*/
#include "SceneVisitor.h"
#include "../system/BaseObject.h"
#include "../system/FreestyleConfig.h"
#include "../system/Precision.h"
#include "../geometry/BBox.h"
#include "../geometry/Geom.h"
using namespace std;
namespace Freestyle {
using namespace Geometry;
class Node : public BaseObject {
public:
inline Node() : BaseObject()
{
}
inline Node(const Node &iBrother) : BaseObject()
{
_BBox = iBrother.bbox();
}
virtual ~Node()
{
}
/*! Accept the corresponding visitor
* Each inherited node must overload this method
*/
virtual void accept(SceneVisitor &v)
{
v.visitNode(*this);
}
/*! bounding box management */
/*! Returns the node bounding box
* If no bounding box exists, an empty bbox is returned
*/
virtual const BBox<Vec3r> &bbox() const
{
return _BBox;
}
/*! Sets the Node bounding box */
virtual void setBBox(const BBox<Vec3r> &iBox)
{
_BBox = iBox;
}
/*! Makes the union of _BBox and iBox */
virtual void AddBBox(const BBox<Vec3r> &iBox)
{
if (iBox.empty()) {
return;
}
if (_BBox.empty()) {
_BBox = iBox;
}
else {
_BBox += iBox;
}
}
/*! Updates the BBox */
virtual const BBox<Vec3r> &UpdateBBox()
{
return _BBox;
}
/*! Clears the bounding box */
virtual void clearBBox()
{
_BBox.clear();
}
protected:
private:
BBox<Vec3r> _BBox;
#ifdef WITH_CXX_GUARDEDALLOC
MEM_CXX_CLASS_ALLOC_FUNCS("Freestyle:Node")
#endif
};
} /* namespace Freestyle */
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