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node/interp.h

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#ifndef NODE_INTERP_H
#define NODE_INTERP_H

/*

  GLT OpenGL C++ Toolkit (LGPL)
  Copyright (C) 2000-2002 Nigel Stewart  

  Email: nigels.com@gmail.com   
  WWW:   http://www.nigels.com/glt/

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  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 GNU
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

*/

#include <glt/colmap.h>

#include <node/shape.h>
#include <misc/timer.h>

class GltColor;
class Matrix;

class GltInterpolator : public GltShape
{
public:
    GltInterpolator();
    virtual ~GltInterpolator();

    void start(const double duration,const bool loop = false);

    void start(const bool loop = false);

    void stop();

    void restart(void);

    // 
    // Get/Set
    //

    const bool   &active()   const;
    const bool   &loop()     const;
    const bool   &realTime() const;
    const double &duration() const;
    const int    &frame()    const;

          bool   &active();
          bool   &loop();
          bool   &realTime();
          double &duration();
          int    &frame();

protected:
    bool          _active;
    bool          _loop;
    bool          _realTime;
    Timer         _timer;
    double        _duration;
    int           _frame;
};

class GltInterpolatorColor : public GltInterpolator
{
public:
    GltInterpolatorColor(GltColor &color);
    ~GltInterpolatorColor();

    virtual void draw() const;

          GltColorMap &colorMap();
    const GltColorMap &colorMap() const;

private:
    GltColor    &_color;
    GltColorMap  _colorMap;
};

class GltInterpolatorRotation : public GltInterpolator
{
public:
    GltInterpolatorRotation(Matrix &matrix);
    ~GltInterpolatorRotation();

    virtual void draw() const;

          Vector &axis();
    const Vector &axis() const;

          Vector &center();
    const Vector &center() const;
           
private:
    Matrix    &_matrix;
    Vector     _axis;
    Vector     _center;
};

#endif

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