ColorSpace.h

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//---------------------------------------------------------------------------------------
// Copyright (c) 2001-2008 by PDFTron Systems Inc. All Rights Reserved.
// Consult legal.txt regarding legal and license information.
//---------------------------------------------------------------------------------------

#ifndef   H_CPPPDFColorSpace
#define   H_CPPPDFColorSpace

#include <C/PDF/TRN_ColorSpace.h>
#include <Common/Common.h>
#include <PDF/Function.h>

namespace pdftron { 
        namespace PDF {


class ColorPt
{
public:

        ColorPt(double x = 0, double y = 0, double z = 0, double w = 0);
        ColorPt(const ColorPt& co);
        ~ColorPt();

        ColorPt& operator= (const ColorPt& co);
        bool operator== (const ColorPt& co) const;

        void Set(double x = 0, double y = 0, double z = 0, double w = 0);

        void Set(int colorant_index, double colorant_value);

        double Get(int colorant_index);

        void SetColorantNum(int num);

        TRN_ColorPt m_c;
};




class ColorSpace
{
public:

        // Common ColorSpace methods ----------------------------------------------------

         static ColorSpace CreateDeviceGray();

         static ColorSpace CreateDeviceRGB();

         static ColorSpace CreateDeviceCMYK();

         static ColorSpace CreatePattern();

         ColorSpace (SDF::Obj color_space = 0);
         ColorSpace(const ColorSpace& c);
         ColorSpace& operator=(const ColorSpace& c);

         ~ColorSpace();
        
        enum Type
        {
                e_device_gray,
                e_device_rgb,
                e_device_cmyk,
                e_cal_gray,
                e_cal_rgb,
                e_lab,
                e_icc,
                e_indexed,
                e_pattern,
                e_separation,
                e_device_n,
                e_null
        };

        // Common Static/Global methods ----------------------------------------------------

         static int GetComponentNum(Type cs_type, SDF::Obj cs);

         static Type GetType(SDF::Obj cs);

         Type GetType() const;

         SDF::Obj GetSDFObj ();

         int GetComponentNum();

         void InitColor(ColorPt& out_colorants);

         void InitComponentRanges(std::vector<double>& out_decode_low, std::vector<double>& out_decode_range);

         void Convert2Gray(const ColorPt& in_color, ColorPt& out_color);

         void Convert2RGB(const ColorPt& in_color, ColorPt& out_color);

         void Convert2CMYK(const ColorPt& in_color, ColorPt& out_color);

         ColorSpace GetAlternateColorSpace();

         ColorSpace GetBaseColorSpace();

        // Indexed color space methods --------------------------------------------------

         int GetHighVal();

         const UChar* GetLookupTable();

         void GetBaseColor(UChar color_idx, ColorPt& out_color);

        // Separation color space methods -----------------------------------------------

         Function GetTintFunction();

         bool IsAll();

         bool IsNone();

        ColorSpace(TRN_ColorSpace impl);
        TRN_ColorSpace mp_cs;
};


#include <Impl/ColorSpace.inl>

        };      // namespace PDF
};      // namespace pdftron

#endif

---

© 2002-2008 PDFTron Systems Inc.