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@@ -1,61 +1,61 @@ |
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/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/* $Id$ */
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package org.apache.fop.afp;
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import java.awt.Color;
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import org.apache.xmlgraphics.java2d.color.ColorConverter;
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import org.apache.fop.util.ColorUtil;
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/**
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* Converts to grayscale using the standard RED=30%, GREEN=59% and BLUE=11%
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* weights (see http://en.wikipedia.org/wiki/Grayscale)
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*/
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final class GrayScaleColorConverter implements ColorConverter {
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private static final int RED_WEIGHT = 77;
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private static final int GREEN_WEIGTH = 150;
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private static final int BLUE_WEIGHT = 28;
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private static final GrayScaleColorConverter SINGLETON = new GrayScaleColorConverter();
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private GrayScaleColorConverter() { }
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/**
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* static factory
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*
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* @return singleton instance of GrayScaleColorConverter
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*/
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public static GrayScaleColorConverter getInstance() {
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return SINGLETON;
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}
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/**
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* The color is converted to CMYK with just the K component {@inheritDoc}
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*/
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public Color convert(Color color) {
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float kValue = (RED_WEIGHT * color.getRed() + GREEN_WEIGTH * color.getGreen() + BLUE_WEIGHT
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* color.getBlue()) / 255.0f / 255.0f;
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return ColorUtil.toCMYKGrayColor(kValue);
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}
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}
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/* |
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* Licensed to the Apache Software Foundation (ASF) under one or more |
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* contributor license agreements. See the NOTICE file distributed with |
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* this work for additional information regarding copyright ownership. |
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* The ASF licenses this file to You under the Apache License, Version 2.0 |
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* (the "License"); you may not use this file except in compliance with |
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* the License. You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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/* $Id$ */ |
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package org.apache.fop.afp; |
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import java.awt.Color; |
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import org.apache.xmlgraphics.java2d.color.ColorConverter; |
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import org.apache.fop.util.ColorUtil; |
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/** |
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* Converts to grayscale using the standard RED=30%, GREEN=59% and BLUE=11% |
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* weights (see http://en.wikipedia.org/wiki/Grayscale) |
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*/ |
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final class GrayScaleColorConverter implements ColorConverter { |
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private static final int RED_WEIGHT = 77; |
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private static final int GREEN_WEIGTH = 150; |
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private static final int BLUE_WEIGHT = 28; |
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private static final GrayScaleColorConverter SINGLETON = new GrayScaleColorConverter(); |
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private GrayScaleColorConverter() { } |
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/** |
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* static factory |
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* |
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* @return singleton instance of GrayScaleColorConverter |
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*/ |
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public static GrayScaleColorConverter getInstance() { |
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return SINGLETON; |
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} |
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/** |
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* The color is converted to CMYK with just the K component {@inheritDoc} |
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*/ |
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public Color convert(Color color) { |
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float kValue = (RED_WEIGHT * color.getRed() + GREEN_WEIGTH * color.getGreen() + BLUE_WEIGHT |
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* color.getBlue()) / 255.0f / 255.0f; |
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return ColorUtil.toCMYKGrayColor(kValue); |
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} |
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} |