diff options
Diffstat (limited to 'basegfx/inc/basegfx/color')
| -rw-r--r-- | basegfx/inc/basegfx/color/bcolor.hxx | 237 | ||||
| -rw-r--r-- | basegfx/inc/basegfx/color/bcolormodifier.hxx | 143 | ||||
| -rw-r--r-- | basegfx/inc/basegfx/color/bcolortools.hxx | 72 |
3 files changed, 452 insertions, 0 deletions
diff --git a/basegfx/inc/basegfx/color/bcolor.hxx b/basegfx/inc/basegfx/color/bcolor.hxx new file mode 100644 index 000000000000..db66dd8dbdee --- /dev/null +++ b/basegfx/inc/basegfx/color/bcolor.hxx @@ -0,0 +1,237 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +#ifndef _BGFX_COLOR_BCOLOR_HXX +#define _BGFX_COLOR_BCOLOR_HXX + +#include <basegfx/tuple/b3dtuple.hxx> +#include <com/sun/star/uno/Reference.hxx> +#include <com/sun/star/uno/Sequence.hxx> +#include <vector> + +////////////////////////////////////////////////////////////////////////////// +// predeclarations + +namespace com { namespace sun { namespace star { namespace rendering { + class XGraphicDevice; +}}}} + +////////////////////////////////////////////////////////////////////////////// + +namespace basegfx +{ + /** Base Color class with three double values + + This class derives all operators and common handling for + a 3D data class from B3DTuple. All necessary extensions + which are special for colors will be added here. + + @see B3DTuple + */ + class BColor : public B3DTuple + { + public: + /** Create a Color with red, green and blue components from [0.0 to 1.0] + + The color is initialized to (0.0, 0.0, 0.0) + */ + BColor() + : B3DTuple() + {} + + /** Create a 3D Color + + @param fRed + @param fGreen + @param fBlue + These parameters are used to initialize the red, green and blue intensities of the color + */ + BColor(double fRed, double fGreen, double fBlue) + : B3DTuple(fRed, fGreen, fBlue) + {} + + /** Create a 3D Color + + @param fLuminosity + The parameter is used to initialize the red, green and blue intensities of the color + */ + BColor(double fLuminosity) + : B3DTuple(fLuminosity, fLuminosity, fLuminosity) + {} + + /** Create a copy of a Color + + @param rVec + The Color which will be copied. + */ + BColor(const BColor& rVec) + : B3DTuple(rVec) + {} + + /** constructor with tuple to allow copy-constructing + from B3DTuple-based classes + */ + BColor(const ::basegfx::B3DTuple& rTuple) + : B3DTuple(rTuple) + {} + + ~BColor() + {} + + // data access read + double getRed() const { return mfX; } + double getGreen() const { return mfY; } + double getBlue() const { return mfZ; } + + // data access write + void setRed(double fNew) { mfX = fNew; } + void setGreen(double fNew) { mfY = fNew; } + void setBlue(double fNew) { mfZ = fNew; } + + /** *=operator to allow usage from BColor, too + */ + BColor& operator*=( const BColor& rPnt ) + { + mfX *= rPnt.mfX; + mfY *= rPnt.mfY; + mfZ *= rPnt.mfZ; + return *this; + } + + /** *=operator to allow usage from BColor, too + */ + BColor& operator*=(double t) + { + mfX *= t; + mfY *= t; + mfZ *= t; + return *this; + } + + /** assignment operator to allow assigning the results + of B3DTuple calculations + */ + BColor& operator=( const ::basegfx::B3DTuple& rVec ) + { + mfX = rVec.getX(); + mfY = rVec.getY(); + mfZ = rVec.getZ(); + return *this; + } + + // blend to another color using luminance + void blend(const BColor& rColor) + { + const double fLuminance(luminance()); + mfX = rColor.getRed() * fLuminance; + mfY = rColor.getGreen() * fLuminance; + mfZ = rColor.getBlue() * fLuminance; + } + + // luminance + double luminance() const + { + const double fRedWeight(77.0 / 256.0); + const double fGreenWeight(151.0 / 256.0); + const double fBlueWeight(28.0 / 256.0); + + return (mfX * fRedWeight + mfY * fGreenWeight + mfZ * fBlueWeight); + } + + // distances in color space + double getDistanceRed(const BColor& rColor) const { return (getRed() > rColor.getRed() ? getRed() - rColor.getRed() : rColor.getRed() - getRed()); } + double getDistanceGreen(const BColor& rColor) const { return (getGreen() > rColor.getGreen() ? getGreen() - rColor.getGreen() : rColor.getGreen() - getGreen()); } + double getDistanceBlue(const BColor& rColor) const { return (getBlue() > rColor.getBlue() ? getBlue() - rColor.getBlue() : rColor.getBlue() - getBlue()); } + + double getDistance(const BColor& rColor) const + { + const double fDistR(getDistanceRed(rColor)); + const double fDistG(getDistanceGreen(rColor)); + const double fDistB(getDistanceBlue(rColor)); + + return sqrt(fDistR * fDistR + fDistG * fDistG + fDistB * fDistB); + } + + double getMinimumDistance(const BColor& rColor) const + { + const double fDistR(getDistanceRed(rColor)); + const double fDistG(getDistanceGreen(rColor)); + const double fDistB(getDistanceBlue(rColor)); + + double fRetval(fDistR < fDistG ? fDistR : fDistG); + return (fRetval < fDistB ? fRetval : fDistB); + } + + double getMaximumDistance(const BColor& rColor) const + { + const double fDistR(getDistanceRed(rColor)); + const double fDistG(getDistanceGreen(rColor)); + const double fDistB(getDistanceBlue(rColor)); + + double fRetval(fDistR > fDistG ? fDistR : fDistG); + return (fRetval > fDistB ? fRetval : fDistB); + } + + // clamp color to [0.0..1.0] values in all three intensity components + void clamp() + { + mfX = basegfx::clamp(mfX, 0.0, 1.0); + mfY = basegfx::clamp(mfY, 0.0, 1.0); + mfZ = basegfx::clamp(mfZ, 0.0, 1.0); + } + + void invert() + { + mfX = 1.0 - mfX; + mfY = 1.0 - mfY; + mfZ = 1.0 - mfZ; + } + + static const BColor& getEmptyBColor() + { + return (const BColor&) ::basegfx::B3DTuple::getEmptyTuple(); + } + + com::sun::star::uno::Sequence< double > colorToDoubleSequence(const com::sun::star::uno::Reference< com::sun::star::rendering::XGraphicDevice >& /*xGraphicDevice*/) const + { + com::sun::star::uno::Sequence< double > aRet(4); + double* pRet = aRet.getArray(); + + pRet[0] = mfX; + pRet[1] = mfY; + pRet[2] = mfZ; + pRet[3] = 1.0; + + return aRet; + } + }; +} // end of namespace basegfx + +#endif /* _BGFX_COLOR_BCOLOR_HXX */ + +////////////////////////////////////////////////////////////////////////////// +// eof diff --git a/basegfx/inc/basegfx/color/bcolormodifier.hxx b/basegfx/inc/basegfx/color/bcolormodifier.hxx new file mode 100644 index 000000000000..962da760f850 --- /dev/null +++ b/basegfx/inc/basegfx/color/bcolormodifier.hxx @@ -0,0 +1,143 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +#ifndef _BGFX_COLOR_BCOLORMODIFIER_HXX +#define _BGFX_COLOR_BCOLORMODIFIER_HXX + +#include <basegfx/color/bcolor.hxx> +#include <vector> + +////////////////////////////////////////////////////////////////////////////// + +namespace basegfx +{ + /** Descriptor for type of color modification + */ + enum BColorModifyMode + { + BCOLORMODIFYMODE_REPLACE, // replace all color with local color + BCOLORMODIFYMODE_INTERPOLATE, // interpolate color between given and local with local value + BCOLORMODIFYMODE_GRAY, // convert color to gray + BCOLORMODIFYMODE_BLACKANDWHITE // convert color to B&W, local value is treshhold + }; + + /** Class to hold a color, value and mode for a color modification. Color modification is + done calling the getModifiedColor() method + */ + class BColorModifier + { + protected: + ::basegfx::BColor maBColor; + double mfValue; + BColorModifyMode meMode; + + public: + BColorModifier( + const ::basegfx::BColor& rBColor, + double fValue = 0.5, + BColorModifyMode eMode = BCOLORMODIFYMODE_REPLACE) + : maBColor(rBColor), + mfValue(fValue), + meMode(eMode) + {} + + // compare operator(s) + bool operator==(const BColorModifier& rCompare) const + { + return (maBColor == rCompare.maBColor && mfValue == rCompare.mfValue && meMode == rCompare.meMode); + } + + bool operator!=(const BColorModifier& rCompare) const + { + return !(operator==(rCompare)); + } + + // data access + const ::basegfx::BColor& getBColor() const { return maBColor; } + double getValue() const { return mfValue; } + BColorModifyMode getMode() const { return meMode; } + + // compute modified color + ::basegfx::BColor getModifiedColor(const ::basegfx::BColor& aSourceColor) const; + }; + + /** Class to hold a stack of BColorModifiers and to get the modified color with + applying all existing entry changes + */ + class BColorModifierStack + { + protected: + ::std::vector< BColorModifier > maBColorModifiers; + + public: + sal_uInt32 count() const + { + return maBColorModifiers.size(); + } + + const BColorModifier& getBColorModifier(sal_uInt32 nIndex) const + { + OSL_ENSURE(nIndex < count(), "BColorModifierStack: Access out of range (!)"); + return maBColorModifiers[nIndex]; + } + + ::basegfx::BColor getModifiedColor(const ::basegfx::BColor& rSource) const + { + if(count()) + { + ::basegfx::BColor aRetval(rSource); + ::std::vector< BColorModifier >::const_iterator aEnd(maBColorModifiers.end()); + + while(aEnd != maBColorModifiers.begin()) + { + aRetval = (--aEnd)->getModifiedColor(aRetval); + } + + return aRetval; + } + else + { + return rSource; + } + } + + void push(const BColorModifier& rNew) + { + maBColorModifiers.push_back(rNew); + } + + void pop() + { + maBColorModifiers.pop_back(); + } + }; +} // end of namespace basegfx + +#endif // _BGFX_COLOR_BCOLORMODIFIER_HXX + +////////////////////////////////////////////////////////////////////////////// +// eof diff --git a/basegfx/inc/basegfx/color/bcolortools.hxx b/basegfx/inc/basegfx/color/bcolortools.hxx new file mode 100644 index 000000000000..9121b145afa7 --- /dev/null +++ b/basegfx/inc/basegfx/color/bcolortools.hxx @@ -0,0 +1,72 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +#ifndef _BGFX_COLOR_BCOLORTOOLS_HXX +#define _BGFX_COLOR_BCOLORTOOLS_HXX + +#include <sal/types.h> + +////////////////////////////////////////////////////////////////////////////// + +namespace basegfx +{ + class BColor; + + namespace tools + { + /// Transform from RGB to HSL + BColor rgb2hsl(const BColor& rRGBColor); + /// Transform from HSL to RGB + BColor hsl2rgb(const BColor& rHSLColor); + + /// Transform from RGB to HSV + BColor rgb2hsv(const BColor& rRGBColor); + /// Transform from HSV to RGB + BColor hsv2rgb(const BColor& rHSVColor); + + /// Transform from R'G'B' to YIQ (NTSC color model - Y is used in monochrome mode) + BColor rgb2yiq(const BColor& rRGBColor); + /// Transform from YIQ to R'G'B' (NTSC color model - Y is used in monochrome mode) + BColor yiq2rgb(const BColor& rYIQColor); + + /// Transform from R'G'B' to Y'PbPr (the [0,1]x[-.5,.5]x[-.5,.5] equivalent of Y'CbCr (which is scaled into 8bit)) + BColor rgb2ypbpr(const BColor& rRGBColor); + /// Transform from Y'PbPr (the [0,1]x[-.5,.5]x[-.5,.5] equivalent of Y'CbCr (which is scaled into 8bit)) into R'G'B' + BColor ypbpr2rgb(const BColor& rYPbPrColor); + + /// Transform from CIE XYZ into Rec. 709 RGB (D65 white point) + BColor ciexyz2rgb( const BColor& rXYZColor ); + /// Transform from Rec. 709 RGB (D65 white point) into CIE XYZ + BColor rgb2ciexyz( const BColor& rRGBColor ); + + } +} // end of namespace basegfx + +#endif /* _BGFX_COLOR_BCOLORTOOLS_HXX */ + +////////////////////////////////////////////////////////////////////////////// +// eof |