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| author | Jeremias Maerki <jeremias@apache.org> | 2010-07-02 10:44:18 +0000 |
|---|---|---|
| committer | Jeremias Maerki <jeremias@apache.org> | 2010-07-02 10:44:18 +0000 |
| commit | 9708ccc61aa6a0689b4e0e39c6e072c44dab3f50 (patch) | |
| tree | 36d4120e4d75adb606c39c7344ef6063fae4542c /src/java/org/apache/fop/afp | |
| parent | 4ed47c3dd4e24ed8654695655493ac4283ed716b (diff) | |
| download | xmlgraphics-fop-9708ccc61aa6a0689b4e0e39c6e072c44dab3f50.tar.gz xmlgraphics-fop-9708ccc61aa6a0689b4e0e39c6e072c44dab3f50.zip | |
Restored ColorExt after removing it from XML Graphics Commons again.
Moved GrayScaleColorConverter as a package-local class from XGC to the AFP package (doesn't require deprecation when we can put the functionality in XGC later with the new color infrastructure).
git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@959945 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'src/java/org/apache/fop/afp')
| -rw-r--r-- | src/java/org/apache/fop/afp/AFPPaintingState.java | 1 | ||||
| -rw-r--r-- | src/java/org/apache/fop/afp/GrayScaleColorConverter.java | 61 |
2 files changed, 61 insertions, 1 deletions
diff --git a/src/java/org/apache/fop/afp/AFPPaintingState.java b/src/java/org/apache/fop/afp/AFPPaintingState.java index e92a6cdb2..85d3e914b 100644 --- a/src/java/org/apache/fop/afp/AFPPaintingState.java +++ b/src/java/org/apache/fop/afp/AFPPaintingState.java @@ -26,7 +26,6 @@ import org.apache.commons.logging.LogFactory; import org.apache.xmlgraphics.java2d.color.ColorConverter; import org.apache.xmlgraphics.java2d.color.DefaultColorConverter; -import org.apache.xmlgraphics.java2d.color.GrayScaleColorConverter; import org.apache.fop.afp.fonts.AFPPageFonts; import org.apache.fop.util.AbstractPaintingState; diff --git a/src/java/org/apache/fop/afp/GrayScaleColorConverter.java b/src/java/org/apache/fop/afp/GrayScaleColorConverter.java new file mode 100644 index 000000000..d9c85ca96 --- /dev/null +++ b/src/java/org/apache/fop/afp/GrayScaleColorConverter.java @@ -0,0 +1,61 @@ +/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/* $Id$ */
+
+package org.apache.fop.afp;
+
+import java.awt.Color;
+
+import org.apache.xmlgraphics.java2d.color.ColorConverter;
+
+import org.apache.fop.util.ColorUtil;
+
+/**
+ * Converts to grayscale using the standard RED=30%, GREEN=59% and BLUE=11%
+ * weights (see http://en.wikipedia.org/wiki/Grayscale)
+ */
+final class GrayScaleColorConverter implements ColorConverter {
+
+ private static final int RED_WEIGHT = 77;
+ private static final int GREEN_WEIGTH = 150;
+ private static final int BLUE_WEIGHT = 28;
+
+ private static final GrayScaleColorConverter SINGLETON = new GrayScaleColorConverter();
+
+ private GrayScaleColorConverter() { }
+
+ /**
+ * static factory
+ *
+ * @return singleton instance of GrayScaleColorConverter
+ */
+ public static GrayScaleColorConverter getInstance() {
+ return SINGLETON;
+ }
+
+ /**
+ * The color is converted to CMYK with just the K component {@inheritDoc}
+ */
+ public Color convert(Color color) {
+
+ float kValue = (RED_WEIGHT * color.getRed() + GREEN_WEIGTH * color.getGreen() + BLUE_WEIGHT
+ * color.getBlue()) / 255.0f / 255.0f;
+
+ return ColorUtil.toCMYKGrayColor(kValue);
+ }
+}
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