Almond/libalmond/include/ImageExport.h

#ifndef LIBALMOND_IMAGEEXPORT_H
#define LIBALMOND_IMAGEEXPORT_H

#include "Mandel.h"
#include "Gradient.h"
#include <functional>
#include <vector>
#include <stdexcept>

namespace alm
{
    enum class ImageFormat
    {
        BMP,
        PNG,
        JPEG
    };
    bool supportsImageFormat(ImageFormat imgf);

    struct ImageOptions
    {
        int jpegQuality = 80;
    };

    struct ImageExportInfo
    {
        mnd::MandelInfo drawInfo;
        mnd::MandelGenerator* generator;
        Gradient gradient;
        ImageOptions options;
        std::string path;
    };

    struct ImageExportException :
        std::runtime_error
    {
        ImageExportException(const std::string& err);
    };


    /**
     * \brief generates and saves a fractal image. The format
     *        will be guessed by the file extension
     * 
     * \param iei               info to generate the image
     * \param progressCallback  optional function that is called to
     *                          report progress; the float parameter
     *                          contains a value from 0 to 100
     */
    void exportImage(const ImageExportInfo& iei,
        std::function<void(float)> progressCallback = [](float){});

    /**
     * \brief generates and saves a fractal image in png format.
     * 
     * \param iei               info to generate the image
     * \param progressCallback  optional function that is called to
     *                          report progress; the float parameter
     *                          contains a value from 0 to 100
     */
    void exportPng(const ImageExportInfo& iei,
        std::function<void(float)> progressCallback = [](float){});


#ifdef WITH_LIBJPEG
    /**
     * \brief generates and saves a fractal image in jpeg format.
     * 
     * \param iei               info to generate the image
     * \param progressCallback  optional function that is called to
     *                          report progress; the float parameter
     *                          contains a value from 0 to 100
     */
    void exportJpeg(const ImageExportInfo& iei,
        std::function<void(float)> progressCallback = [](float){});
#endif // WITH_LIBJPEG

    /**
     * \brief generates and saves a fractal image in jpeg format.
     * 
     * \param iei               info to generate the image
     * \param progressCallback  optional function that is called to
     *                          report progress; the float parameter
     *                          contains a value from 0 to 100
     */
    void exportBmp(const ImageExportInfo& iei,
        std::function<void(float)> progressCallback = [](float){});
}



#endif // LIBALMOND_IMAGEEXPORT_H