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 * Licensed to the Apache Software Foundation (ASF) under one
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 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
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 * with the License.  You may obtain a copy of the License at
 * 
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#ifndef _TOOLS_COLOR_HXX
#define _TOOLS_COLOR_HXX

#include "tools/toolsdllapi.h"

class SvStream;
class ResId;
#include <tools/solar.h>

#ifndef _BGFX_COLOR_BCOLOR_HXX
#include <basegfx/color/bcolor.hxx>
#endif

// --------------------
// - ColorCount-Types -
// --------------------

#define COLCOUNT_MONOCHROM			((sal_uIntPtr)2)
#define COLCOUNT_16 				((sal_uIntPtr)16)
#define COLCOUNT_256				((sal_uIntPtr)256)
#define COLCOUNT_HICOLOR1			(((sal_uIntPtr)0x00007FFF)+1)
#define COLCOUNT_HICOLOR2			(((sal_uIntPtr)0x0000FFFF)+1)
#define COLCOUNT_TRUECOLOR			(((sal_uIntPtr)0x00FFFFFF)+1)

// ---------------
// - Color-Types -
// ---------------

typedef sal_uInt32 ColorData;
#define RGB_COLORDATA( r,g,b )		((ColorData)(((sal_uInt32)((sal_uInt8)(b))))|(((sal_uInt32)((sal_uInt8)(g)))<<8)|(((sal_uInt32)((sal_uInt8)(r)))<<16))
#define TRGB_COLORDATA( t,r,g,b )	((ColorData)(((sal_uInt32)((sal_uInt8)(b))))|(((sal_uInt32)((sal_uInt8)(g)))<<8)|(((sal_uInt32)((sal_uInt8)(r)))<<16)|(((sal_uInt32)((sal_uInt8)(t)))<<24))
#define COLORDATA_RED( n )			((sal_uInt8)((n)>>16))
#define COLORDATA_GREEN( n )		((sal_uInt8)(((sal_uInt16)(n)) >> 8))
#define COLORDATA_BLUE( n ) 		((sal_uInt8)(n))
#define COLORDATA_TRANSPARENCY( n ) ((sal_uInt8)((n)>>24))
#define COLORDATA_RGB( n )			((ColorData)((n) & 0x00FFFFFF))

#define COL_BLACK					RGB_COLORDATA( 0x00, 0x00, 0x00 )
#define COL_BLUE					RGB_COLORDATA( 0x00, 0x00, 0x80 )
#define COL_GREEN					RGB_COLORDATA( 0x00, 0x80, 0x00 )
#define COL_CYAN					RGB_COLORDATA( 0x00, 0x80, 0x80 )
#define COL_RED 					RGB_COLORDATA( 0x80, 0x00, 0x00 )
#define COL_MAGENTA 				RGB_COLORDATA( 0x80, 0x00, 0x80 )
#define COL_BROWN					RGB_COLORDATA( 0x80, 0x80, 0x00 )
#define COL_GRAY					RGB_COLORDATA( 0x80, 0x80, 0x80 )
#define COL_LIGHTGRAY				RGB_COLORDATA( 0xC0, 0xC0, 0xC0 )
#define COL_LIGHTBLUE				RGB_COLORDATA( 0x00, 0x00, 0xFF )
#define COL_LIGHTGREEN				RGB_COLORDATA( 0x00, 0xFF, 0x00 )
#define COL_LIGHTCYAN				RGB_COLORDATA( 0x00, 0xFF, 0xFF )
#define COL_LIGHTRED				RGB_COLORDATA( 0xFF, 0x00, 0x00 )
#define COL_LIGHTMAGENTA			RGB_COLORDATA( 0xFF, 0x00, 0xFF )
#define COL_YELLOW					RGB_COLORDATA( 0xFF, 0xFF, 0x00 )
#define COL_WHITE					RGB_COLORDATA( 0xFF, 0xFF, 0xFF )
#define COL_TRANSPARENT 			TRGB_COLORDATA( 0xFF, 0xFF, 0xFF, 0xFF )
#define COL_AUTO                    (ColorData)0xFFFFFFFF
#define COL_AUTHOR1_DARK			RGB_COLORDATA(198, 146, 0)
#define COL_AUTHOR1_NORMAL			RGB_COLORDATA(255, 255, 158)
#define COL_AUTHOR1_LIGHT			RGB_COLORDATA(255, 255, 195)
#define COL_AUTHOR2_DARK			RGB_COLORDATA(6,  70, 162)
#define COL_AUTHOR2_NORMAL			RGB_COLORDATA(216, 232, 255)
#define COL_AUTHOR2_LIGHT			RGB_COLORDATA(233, 242, 255)
#define COL_AUTHOR3_DARK			RGB_COLORDATA(87, 157,  28)
#define COL_AUTHOR3_NORMAL			RGB_COLORDATA(218, 248, 193)
#define COL_AUTHOR3_LIGHT			RGB_COLORDATA(226, 250, 207)
#define COL_AUTHOR4_DARK			RGB_COLORDATA(105,  43, 157)
#define COL_AUTHOR4_NORMAL			RGB_COLORDATA(228, 210, 245)
#define COL_AUTHOR4_LIGHT			RGB_COLORDATA(239, 228, 248)
#define COL_AUTHOR5_DARK			RGB_COLORDATA(197,   0,  11)
#define COL_AUTHOR5_NORMAL			RGB_COLORDATA(254, 205, 208)
#define COL_AUTHOR5_LIGHT			RGB_COLORDATA(255, 227, 229)
#define COL_AUTHOR6_DARK			RGB_COLORDATA(0, 128, 128)
#define COL_AUTHOR6_NORMAL			RGB_COLORDATA(210, 246, 246)
#define COL_AUTHOR6_LIGHT			RGB_COLORDATA(230, 250, 250)
#define COL_AUTHOR7_DARK			RGB_COLORDATA(140, 132,  0)
#define COL_AUTHOR7_NORMAL			RGB_COLORDATA(237, 252, 163)
#define COL_AUTHOR7_LIGHT			RGB_COLORDATA(242, 254, 181)
#define COL_AUTHOR8_DARK			RGB_COLORDATA(53,  85, 107)
#define COL_AUTHOR8_NORMAL			RGB_COLORDATA(211, 222, 232)
#define COL_AUTHOR8_LIGHT			RGB_COLORDATA(226, 234, 241)
#define COL_AUTHOR9_DARK			RGB_COLORDATA(209, 118,   0)
#define COL_AUTHOR9_NORMAL			RGB_COLORDATA(255, 226, 185)
#define COL_AUTHOR9_LIGHT			RGB_COLORDATA(255, 231, 199)

#define COLOR_CHANNEL_MERGE( _def_cDst, _def_cSrc, _def_cSrcTrans ) \
	((sal_uInt8)((((long)(_def_cDst)-(_def_cSrc))*(_def_cSrcTrans)+(((_def_cSrc)<<8L)|(_def_cDst)))>>8L))

// ---------
// - Color -
// ---------

class TOOLS_DLLPUBLIC Color
{
protected:
	ColorData			mnColor;

public:
						Color() { mnColor = COL_BLACK; }
						Color( ColorData nColor ) { mnColor = nColor; }
						Color( sal_uInt8 nRed, sal_uInt8 nGreen, sal_uInt8 nBlue )
							{ mnColor = RGB_COLORDATA( nRed, nGreen, nBlue ); }
						Color( sal_uInt8 nTransparency, sal_uInt8 nRed, sal_uInt8 nGreen, sal_uInt8 nBlue )
							{ mnColor = TRGB_COLORDATA( nTransparency, nRed, nGreen, nBlue ); }
						Color( const ResId& rResId );
						 // This ctor is defined in svtools, not tools!

						// constructor to create a tools-Color from ::basegfx::BColor
						explicit Color(const ::basegfx::BColor& rBColor) 
						{ 
							mnColor = RGB_COLORDATA( 
								sal_uInt8((rBColor.getRed() * 255.0) + 0.5), 
								sal_uInt8((rBColor.getGreen() * 255.0) + 0.5), 
								sal_uInt8((rBColor.getBlue() * 255.0) + 0.5));
						}

	void				SetRed( sal_uInt8 nRed );
	sal_uInt8				GetRed() const { return COLORDATA_RED( mnColor ); }
	void				SetGreen( sal_uInt8 nGreen );
	sal_uInt8				GetGreen() const { return COLORDATA_GREEN( mnColor ); }
	void				SetBlue( sal_uInt8 nBlue );
	sal_uInt8				GetBlue() const { return COLORDATA_BLUE( mnColor ); }
	void				SetTransparency( sal_uInt8 nTransparency );
	sal_uInt8				GetTransparency() const { return COLORDATA_TRANSPARENCY( mnColor ); }

	void				SetColor( ColorData nColor ) { mnColor = nColor; }
	ColorData			GetColor() const { return mnColor; }
	ColorData			GetRGBColor() const { return COLORDATA_RGB( mnColor ); }

	sal_uInt8				GetColorError( const Color& rCompareColor ) const;

	sal_uInt8				GetLuminance() const;
	void				IncreaseLuminance( sal_uInt8 cLumInc );
	void				DecreaseLuminance( sal_uInt8 cLumDec );

	void				IncreaseContrast( sal_uInt8 cContInc );
	void				DecreaseContrast( sal_uInt8 cContDec );

	void				Invert();

	void				Merge( const Color& rMergeColor, sal_uInt8 cTransparency );

	sal_Bool				IsRGBEqual( const Color& rColor ) const;

    // comparison with luminance thresholds
    sal_Bool                IsDark()    const;
    sal_Bool                IsBright()  const;

    // color space conversion tools
    // the range for h/s/b is:
    // Hue: 0-360 degree
    // Saturation: 0-100 %
    // Brightness: 0-100 %
    static ColorData    HSBtoRGB( sal_uInt16 nHue, sal_uInt16 nSat, sal_uInt16 nBri );
    void                RGBtoHSB( sal_uInt16& nHue, sal_uInt16& nSat, sal_uInt16& nBri ) const;

    // the range for cymk is 0 to 1.0
    static ColorData    CMYKtoRGB( double fCyan, double fMagenta, double fYellow, double fKey );
    void                RGBtoCMYK( double& fCyan, double& fMagenta, double& fYellow, double& fKey );

    sal_Bool            operator==( const Color& rColor ) const
                        { return (mnColor == rColor.mnColor); }
    sal_Bool            operator!=( const Color& rColor ) const
                        { return !(Color::operator==( rColor )); }

	SvStream&			Read( SvStream& rIStm, sal_Bool bNewFormat = sal_True );
	SvStream&			Write( SvStream& rOStm, sal_Bool bNewFormat = sal_True );

	TOOLS_DLLPUBLIC friend SvStream&	operator>>( SvStream& rIStream, Color& rColor );
	TOOLS_DLLPUBLIC friend SvStream&	operator<<( SvStream& rOStream, const Color& rColor );

	// get ::basegfx::BColor from this color
	::basegfx::BColor getBColor() const { return ::basegfx::BColor(GetRed() / 255.0, GetGreen() / 255.0, GetBlue() / 255.0); }
};

inline void Color::SetRed( sal_uInt8 nRed )
{
	mnColor &= 0xFF00FFFF;
	mnColor |= ((sal_uInt32)nRed)<<16;
}

inline void Color::SetGreen( sal_uInt8 nGreen )
{
	mnColor &= 0xFFFF00FF;
	mnColor |= ((sal_uInt16)nGreen)<<8;
}

inline void Color::SetBlue( sal_uInt8 nBlue )
{
	mnColor &= 0xFFFFFF00;
	mnColor |= nBlue;
}

inline void Color::SetTransparency( sal_uInt8 nTransparency )
{
	mnColor &= 0x00FFFFFF;
	mnColor |= ((sal_uInt32)nTransparency)<<24;
}

inline sal_Bool Color::IsRGBEqual( const Color& rColor ) const
{
	return (COLORDATA_RGB( mnColor ) == COLORDATA_RGB( rColor.mnColor ));
}

inline sal_uInt8 Color::GetLuminance() const
{
	return( (sal_uInt8) ( ( COLORDATA_BLUE( mnColor ) * 28UL +
						COLORDATA_GREEN( mnColor ) * 151UL +
						COLORDATA_RED( mnColor ) * 77UL ) >> 8UL ) );
}

inline void Color::Merge( const Color& rMergeColor, sal_uInt8 cTransparency )
{
	SetRed( COLOR_CHANNEL_MERGE( COLORDATA_RED( mnColor ), COLORDATA_RED( rMergeColor.mnColor ), cTransparency ) );
	SetGreen( COLOR_CHANNEL_MERGE( COLORDATA_GREEN( mnColor ), COLORDATA_GREEN( rMergeColor.mnColor ), cTransparency ) );
	SetBlue( COLOR_CHANNEL_MERGE( COLORDATA_BLUE( mnColor ), COLORDATA_BLUE( rMergeColor.mnColor ), cTransparency ) );
}

#endif // _TOOLS_COLOR_HXX