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#ifndef COIN_SOGLVIEWINGMATRIXELEMENT_H
#define COIN_SOGLVIEWINGMATRIXELEMENT_H
/**************************************************************************\
*
* This file is part of the Coin 3D visualization library.
* Copyright (C) 1998-2007 by Systems in Motion. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* ("GPL") version 2 as published by the Free Software Foundation.
* See the file LICENSE.GPL at the root directory of this source
* distribution for additional information about the GNU GPL.
*
* For using Coin with software that can not be combined with the GNU
* GPL, and for taking advantage of the additional benefits of our
* support services, please contact Systems in Motion about acquiring
* a Coin Professional Edition License.
*
* See http://www.coin3d.org/ for more information.
*
* Systems in Motion, Postboks 1283, Pirsenteret, 7462 Trondheim, NORWAY.
* http://www.sim.no/ sales@sim.no coin-support@coin3d.org
*
\**************************************************************************/
#include <Inventor/elements/SoViewingMatrixElement.h>
class COIN_DLL_API SoGLViewingMatrixElement : public SoViewingMatrixElement {
typedef SoViewingMatrixElement inherited;
SO_ELEMENT_HEADER(SoGLViewingMatrixElement);
public:
static void initClass(void);
protected:
virtual ~SoGLViewingMatrixElement();
public:
virtual void init(SoState * state);
virtual void push(SoState * state);
virtual void pop(SoState * state,
const SoElement * prevTopElement);
static uint32_t getNodeId(SoState * const state);
static SbMatrix getResetMatrix(SoState * state);
protected:
virtual void setElt(const SbMatrix & matrix);
private:
SoState * state;
SbMatrix modelmatrix;
SbBool mmidentity;
void updategl(void);
};
// private helper element to avoid caching problems with SoResetTransform
// FIXME: consider moving this element to a separate file.
class SoResetMatrixElement : public SoElement {
typedef SoElement inherited;
SO_ELEMENT_HEADER(SoResetMatrixElement);
public:
static void initClass(void);
protected:
virtual ~SoResetMatrixElement();
public:
virtual void init(SoState * state);
static void set(SoState * const state, const SbMatrix & m);
static const SbMatrix & get(SoState * state);
protected:
virtual void setElt(const SbMatrix & matrix);
virtual SbBool matches(const SoElement * element) const;
virtual SoElement * copyMatchInfo(void) const;
private:
SbMatrix matrix;
};
#endif // !COIN_SOGLVIEWINGMATRIXELEMENT_H
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