PPM.h

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/* Author: Ioan Sucan */

#ifndef OMPL_UTIL_PPM_
#define OMPL_UTIL_PPM_

#include <vector>

namespace ompl
{
    class PPM
    {
    public:
        struct Color
        {
            unsigned char red, green, blue;

            // needed for Python bindings
            bool operator==(const Color c)
            {
                return red == c.red && green == c.green && blue == c.blue;
            }
        };

        PPM() = default;

        /* \brief Load a .ppm file. Throw an exception in case of an error. */
        PPM(const char *filename)
        {
            loadFile(filename);
        }

        void loadFile(const char *filename);

        void saveFile(const char *filename);

        unsigned int getWidth() const
        {
            return width_;
        }

        unsigned int getHeight() const
        {
            return height_;
        }

        void setWidth(unsigned int width)
        {
            width_ = width;
        }

        void setHeight(unsigned int height)
        {
            height_ = height;
        }

        const std::vector<Color> &getPixels() const
        {
            return pixels_;
        }
        std::vector<Color> &getPixels()
        {
            return pixels_;
        }

        const Color &getPixel(const int row, const int col) const
        {
            return pixels_[row * width_ + col];
        }

        Color &getPixel(const int row, const int col)
        {
            return pixels_[row * width_ + col];
        }

    private:
        std::vector<Color> pixels_;
        unsigned int width_{0};
        unsigned int height_{0};
    };
}

#endif