/*
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 * $Id: common.h 2617 2011-09-30 21:37:23Z rusu $
 *
 */
#ifndef PCL_PCL_VISUALIZER_COMMON_H_
#define PCL_PCL_VISUALIZER_COMMON_H_
#include <vtkCommand.h>
#include <vtkTextActor.h>

#include <pcl/pcl_macros.h>

namespace pcl
{
  namespace visualization
  {
    /** \brief Get (good) random values for R/G/B.
      * \param r the resultant R color value
      * \param g the resultant G color value
      * \param b the resultant B color value
      * \param min minimum value for the colors
      * \param max maximum value for the colors
      */
    PCL_EXPORTS void 
    getRandomColors (double &r, double &g, double &b, double min = 0.2, double max = 2.8);

    enum RenderingProperties
    {
      PCL_VISUALIZER_POINT_SIZE,
      PCL_VISUALIZER_OPACITY,
      PCL_VISUALIZER_LINE_WIDTH,
      PCL_VISUALIZER_FONT_SIZE,
      PCL_VISUALIZER_COLOR,
      PCL_VISUALIZER_REPRESENTATION
    };

    enum RenderingRepresentationProperties
    {
      PCL_VISUALIZER_REPRESENTATION_POINTS,
      PCL_VISUALIZER_REPRESENTATION_WIREFRAME,
      PCL_VISUALIZER_REPRESENTATION_SURFACE
    };

    //////////////////////////////////////////////////////////////////////////////////////////////
    /** \brief Camera class holds a set of camera parameters together with the window pos/size. */
    class Camera
    {
      public:
        double clip[2];     // clipping range
        double focal[3];    // focal point
        double pos[3];      // position
        double view[3];     // viewup

        double window_size[2];  // window size
        double window_pos[2];   // window position
    };

    //////////////////////////////////////////////////////////////////////////////////////////////
    class PCL_EXPORTS FPSCallback : public vtkCommand
    {
      public:
        static FPSCallback *New () { return new FPSCallback;}
        inline void setTextActor (vtkTextActor *txt) { this->actor_ = txt; }
        virtual void Execute (vtkObject *, unsigned long, void*);
      protected:
        vtkTextActor *actor_;
    };
  }
}

#endif
