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+/*************************************************************************
+ *
+ * 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 INCLUDED_BASEBMP_COLOR_HXX
+#define INCLUDED_BASEBMP_COLOR_HXX
+
+#include <sal/types.h>
+#include <rtl/math.hxx>
+
+namespace basebmp
+{
+
+class Color
+{
+private:
+ sal_uInt32 mnColor;
+
+public:
+ typedef sal_uInt32 value_type;
+ typedef sal_uInt8 component_type;
+
+ Color() : mnColor(0) {}
+ explicit Color( sal_uInt32 nVal ) : mnColor(nVal) {}
+ Color( sal_uInt8 nRed, sal_uInt8 nGreen, sal_uInt8 nBlue ) :
+ mnColor( ((sal_uInt32)nRed << 16) | ((sal_uInt32)nGreen << 8) | nBlue )
+ {}
+
+ void setRed( sal_uInt8 nRed ) { mnColor &= ~0x00FF0000UL; mnColor |= (sal_uInt32)nRed << 16; }
+ void setGreen( sal_uInt8 nGreen ) { mnColor &= ~0x0000FF00UL; mnColor |= (sal_uInt32)nGreen << 8; }
+ void setBlue( sal_uInt8 nBlue ) { mnColor &= ~0x000000FFUL; mnColor |= nBlue; }
+
+ void setGrey( sal_uInt8 nGreyVal ) { mnColor = (sal_uInt32)nGreyVal << 16 | (sal_uInt32)nGreyVal << 8 | nGreyVal; }
+
+ sal_uInt8 getRed() const { return 0xFF & (sal_uInt8)(mnColor >> 16); }
+ sal_uInt8 getGreen() const { return 0xFF & (sal_uInt8)(mnColor >> 8); }
+ sal_uInt8 getBlue() const { return 0xFF & (sal_uInt8)mnColor; }
+
+ sal_uInt8 getGreyscale() const { return (sal_uInt8)((getBlue()*28UL +
+ getGreen()*151 +
+ getRed()*77) / 256); }
+
+ sal_uInt32 toInt32() const { return mnColor; }
+
+ bool operator!() const { return mnColor == 0; }
+ Color operator&( sal_uInt32 nMask ) const { return Color(mnColor & nMask); }
+ Color operator^( Color col ) const { return Color(col.getRed()^getRed(),
+ col.getGreen()^getGreen(),
+ col.getBlue()^getBlue()); }
+ Color operator-( Color col ) const { return Color((sal_uInt8)abs((int)getRed()-col.getRed()),
+ (sal_uInt8)abs((int)getGreen()-col.getGreen()),
+ (sal_uInt8)abs((int)getBlue()-col.getBlue())); }
+ Color operator+( Color col ) const { return Color(getRed()+col.getRed(),
+ getGreen()+col.getGreen(),
+ getBlue()+col.getBlue()); }
+ Color operator*( Color col ) const { return Color((sal_uInt8)((sal_uInt32)col.getRed()*getRed()/SAL_MAX_UINT8),
+ (sal_uInt8)((sal_uInt32)col.getGreen()*getGreen()/SAL_MAX_UINT8),
+ (sal_uInt8)((sal_uInt32)col.getBlue()*getBlue()/SAL_MAX_UINT8)); }
+ Color operator*( sal_uInt8 n ) const { return Color((sal_uInt8)((sal_uInt32)n*getRed()/SAL_MAX_UINT8),
+ (sal_uInt8)((sal_uInt32)n*getGreen()/SAL_MAX_UINT8),
+ (sal_uInt8)((sal_uInt32)n*getBlue()/SAL_MAX_UINT8)); }
+ Color operator*( double n ) const { return Color((sal_uInt8)(n*getRed()+.5),
+ (sal_uInt8)(n*getGreen()+.5),
+ (sal_uInt8)(n*getBlue()+.5)); }
+ bool operator==( const Color& rhs ) const { return (getRed()==rhs.getRed() &&
+ getGreen()==rhs.getGreen() &&
+ getBlue()==rhs.getBlue()); }
+ bool operator!=( const Color& rhs ) const { return !(*this==rhs); }
+ double magnitude() const { return sqrt((double)getRed()*getRed()
+ + getGreen()*getGreen()
+ + getBlue()*getBlue()); }
+};
+
+} // namespace vigra
+
+#endif /* INCLUDED_BASEBMP_COLOR_HXX */