pcl_context_item.h

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 *
 *  Point Cloud Library (PCL) - www.pointclouds.org
 *  Copyright (c) 2012-, Open Perception, Inc.
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 *     notice, this list of conditions and the following disclaimer.
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 *     with the distribution.
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 *     from this software without specific prior written permission.
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 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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#pragma once
 
#include <pcl/pcl_macros.h>
#include <vtkContextItem.h>
#include <vector>
 
template <typename T> class vtkSmartPointer;
class vtkImageData;
class vtkContext2D;
 
namespace pcl
{
  namespace visualization
  {
    /** Struct PCLContextItem represents our own custom version of vtkContextItem, used by
      * the ImageViewer class.
      *
      * \author Nizar Sallem
      */
    struct PCL_EXPORTS PCLContextItem : public vtkContextItem
    {
      vtkTypeMacro (PCLContextItem, vtkContextItem);
      static PCLContextItem *New();
      bool Paint (vtkContext2D *) override { return (false); };
      void setColors (unsigned char r, unsigned char g, unsigned char b);
      void setColors (unsigned char rgb[3]) { memcpy (colors, rgb, 3 * sizeof (unsigned char)); }
      void setOpacity (double opacity) { SetOpacity (opacity); };
      unsigned char colors[3];
      std::vector<float> params;
    };
 
    /** Struct PCLContextImageItem a specification of vtkContextItem, used to add an image to the
      * scene in the ImageViewer class.
      *
      * \author Nizar Sallem
      */
    struct PCL_EXPORTS PCLContextImageItem : public vtkContextItem
    {
      vtkTypeMacro (PCLContextImageItem, vtkContextItem);
      PCLContextImageItem ();
 
      static PCLContextImageItem *New ();
      bool Paint (vtkContext2D *painter) override;
      void set (float _x, float _y, vtkImageData *_image);
      vtkSmartPointer<vtkImageData> image;
      float x, y;
    };
 
    namespace context_items
    {
      struct PCL_EXPORTS Point : public PCLContextItem
      {
        vtkTypeMacro (Point, PCLContextItem);
        static Point *New();
        bool Paint (vtkContext2D *painter) override;
        virtual void set (float _x, float _y);
      };
 
      struct PCL_EXPORTS Line : public PCLContextItem
      {
        vtkTypeMacro (Line, PCLContextItem);
        static Line *New();
        bool Paint (vtkContext2D *painter) override;
        virtual void set (float _x_1, float _y_1, float _x_2, float _y_2);
      };
 
      struct PCL_EXPORTS Circle : public PCLContextItem
      {
        vtkTypeMacro (Circle, PCLContextItem);
        static Circle *New();
        bool Paint (vtkContext2D *painter) override;
        virtual void set (float _x, float _y, float _r);
      };
 
      struct PCL_EXPORTS Disk : public Circle
      {
        vtkTypeMacro (Disk, Circle);
        static Disk *New();
        bool Paint (vtkContext2D *painter) override;
      };
 
      struct PCL_EXPORTS Rectangle : public PCLContextItem
      {
        vtkTypeMacro (Rectangle, Point);
        static Rectangle *New();
        bool Paint (vtkContext2D *painter) override;
        virtual void set (float _x, float _y, float _w, float _h);
      };
 
      struct PCL_EXPORTS FilledRectangle : public Rectangle
      {
        vtkTypeMacro (FilledRectangle, Rectangle);
        static FilledRectangle *New();
        bool Paint (vtkContext2D *painter) override;
      };
 
      struct PCL_EXPORTS Points : public PCLContextItem
      {
        vtkTypeMacro (Points, PCLContextItem);
        static Points *New();
        bool Paint (vtkContext2D *painter) override;
        void set (const std::vector<float>& _xy)  { params = _xy; }
      };
 
      struct PCL_EXPORTS Polygon : public Points
      {
        vtkTypeMacro (Polygon, Points);
        static Polygon *New();
        bool Paint (vtkContext2D *painter) override;
      };
 
      struct PCL_EXPORTS Text : public PCLContextItem
      {
        vtkTypeMacro (Text, PCLContextItem);
        static Text *New ();
        bool Paint (vtkContext2D *painter) override;
        virtual void set (float x, float y, const std::string& _text);
        std::string text;
      };
 
      struct PCL_EXPORTS Markers : public Points
      {
        vtkTypeMacro (Markers, Points);
        static Markers *New ();
        bool Paint (vtkContext2D *painter) override;
        void setSize (float _size) { size = _size; }
        void setPointColors (unsigned char r, unsigned char g, unsigned char b);
        void setPointColors (unsigned char rgb[3]);
        float size;
        unsigned char point_colors[3];
      };
    }
  }
}