text: /*
   * 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.
   *
   * Copyright 2011, Blender Foundation.
   */
  
  #pragma once
  
  #include "COM_NodeOperation.h"
  #include "DNA_movieclip_types.h"
  
  typedef enum MovieClipAttribute {
    MCA_SCALE,
    MCA_X,
    MCA_Y,
    MCA_ANGLE,
  } MovieClipAttribute;
  /**
   * this program converts an input color to an output value.
   * it assumes we are in sRGB color space.
   */
  class MovieClipAttributeOperation : public NodeOperation {
   private:
    MovieClip *m_clip;
    float m_value;
    int m_framenumber;
    bool m_invert;
    MovieClipAttribute m_attribute;
  
   public:
    /**
     * Default constructor
     */
    MovieClipAttributeOperation();
  
    void initExecution();
  
    /**
     * the inner loop of this program
     */
    void executePixelSampled(float output[4], float x, float y, PixelSampler sampler);
    void determineResolution(unsigned int resolution[2], unsigned int preferredResolution[2]);
  
    void setMovieClip(MovieClip *clip)
    {
      this->m_clip = clip;
    }
    void setFramenumber(int framenumber)
    {
      this->m_framenumber = framenumber;
    }
    void setAttribute(MovieClipAttribute attribute)
    {
      this->m_attribute = attribute;
    }
    void setInvert(bool invert)
    {
      this->m_invert = invert;
    }
  };
  