Optimizer.h

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//---------------------------------------------------------------------------------------
// Copyright (c) 2001-2018 by PDFTron Systems Inc. All Rights Reserved.
// Consult legal.txt regarding legal and license information.
//---------------------------------------------------------------------------------------
#ifndef PDFTRON_H_CPPPDFOptimizer
#define PDFTRON_H_CPPPDFOptimizer

#include <PDF/PDFDoc.h>
#include <C/PDF/TRN_Optimizer.h>

namespace pdftron{
    namespace PDF{


class Optimizer
{
public:

    class ImageSettings : public TRN_OptimizerImageSettings
    {
    public:
        enum CompressionMode
        {
            e_retain,
            e_flate, 
            e_jpeg,
            e_jpeg2000,
            e_none
        };

        enum DownsampleMode
        {
            e_off,
            e_default
        };
        ImageSettings();

        void SetImageDPI(double maximum,double resampling);

        void SetCompressionMode(enum CompressionMode mode);

        void SetDownsampleMode(enum DownsampleMode mode);

        void SetQuality(UInt32 quality);

        void ForceRecompression(bool force);

        void ForceChanges(bool force);
    };

    class MonoImageSettings : public TRN_OptimizerMonoImageSettings
    {
    public:
        enum CompressionMode
        {
            e_jbig2,
            e_flate,
            e_none
        };

        enum DownsampleMode
        {
            e_off,
            e_default
        };

        MonoImageSettings();

        void SetImageDPI(double maximum,double resampling);

        void SetCompressionMode(enum CompressionMode mode);


        void SetDownsampleMode(enum DownsampleMode mode);


        void ForceRecompression(bool force);

        void ForceChanges(bool force);

        void SetJBIG2Threshold(double jbig2_threshold);

    };

    class TextSettings : public TRN_OptimizerTextSettings
    {
    public:
        TextSettings();

        void SubsetFonts(bool subset);

        void EmbedFonts(bool embed);
    };

    class OptimizerSettings
    {
    public:
        OptimizerSettings();

        void SetColorImageSettings(const ImageSettings& settings);

        void SetGrayscaleImageSettings(const ImageSettings& settings);
        
        void SetMonoImageSettings(const MonoImageSettings& settings);
        
        void SetTextSettings(const TextSettings& settings);

        void RemoveCustomEntries(bool should_remove);

        ImageSettings m_color_image_settings;
        ImageSettings m_grayscale_image_settings;
        MonoImageSettings m_mono_image_settings;
        TextSettings m_text_settings;
        bool m_remove_custom;
    };
    
    static void Optimize(PDFDoc& doc, const OptimizerSettings& settings=OptimizerSettings());

    #ifndef SWIGHIDDEN
    private:
    Optimizer() {};
    #endif
};

#include <Impl/Optimizer.inl>

    } // namespace PDF
} // namespace pdftron

#endif // PDFTRON_H_CPPPDFOptimizer