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Diffstat (limited to 'libjava/classpath/gnu/javax/swing/text/html/css/CSSColor.java')
-rw-r--r-- | libjava/classpath/gnu/javax/swing/text/html/css/CSSColor.java | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/javax/swing/text/html/css/CSSColor.java b/libjava/classpath/gnu/javax/swing/text/html/css/CSSColor.java new file mode 100644 index 000000000..ea4b94ae0 --- /dev/null +++ b/libjava/classpath/gnu/javax/swing/text/html/css/CSSColor.java @@ -0,0 +1,170 @@ +/* CSSColor.java -- Converts CSS color values + Copyright (C) 2006 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath 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 +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package gnu.javax.swing.text.html.css; + +import java.awt.Color; +import java.util.HashMap; +import java.util.Iterator; +import java.util.Set; + +/** + * Converts CSS color values into AWT Color values. + * + * @author Roman Kennke (kennke@aicas.com) + */ +public class CSSColor +{ + + private static final HashMap COLOR_MAP; + static + { + COLOR_MAP = new HashMap(); + COLOR_MAP.put("maroon", "#800000"); + COLOR_MAP.put("red", "#ff0000"); + COLOR_MAP.put("orange", "#ffa500"); + COLOR_MAP.put("yellow", "#ffff00"); + COLOR_MAP.put("olive", "#808000"); + COLOR_MAP.put("purple", "#800080"); + COLOR_MAP.put("fuchsia", "#ff00ff"); + COLOR_MAP.put("white", "#ffffff"); + COLOR_MAP.put("lime", "#00ff00"); + COLOR_MAP.put("green", "#008000"); + COLOR_MAP.put("navy", "#000080"); + COLOR_MAP.put("blue", "#0000ff"); + COLOR_MAP.put("aqua", "#00ffff"); + COLOR_MAP.put("teal", "#008080"); + COLOR_MAP.put("black", "#000000"); + COLOR_MAP.put("silver", "#c0c0c0"); + COLOR_MAP.put("gray", "#808080"); + } + + /** + * The CSS value. + */ + private String value; + + /** + * The converted color. + */ + private Color color; + + /** + * Creates a new instance. + * + * @param val the CSS value + */ + public CSSColor(String val) + { + value = val; + color = convertValue(value); + } + + /** + * Converts a CSS color value to an AWT color. + * + * @param value the CSS color value + * + * @return the converted color value + */ + public static Color convertValue(String value) + { + Color color; + String val1 = value.toLowerCase(); + if (val1.charAt(0) != '#') + val1 = (String) COLOR_MAP.get(val1); + if (val1 != null) + { + String hexVal = val1.substring(1).trim(); + try + { + int rgb = Integer.parseInt(hexVal, 16); + color = new Color(rgb); + } + catch (NumberFormatException ex) + { + color = Color.BLACK; + } + } + else + color = null; + return color; + } + + /** + * Returns the converted color. + * + * @return the converted color + */ + public Color getValue() + { + return color; + } + + public String toString() + { + return value; + } + + /** + * Returns <code>true</code> if the specified value is a valid color value, + * <code>false</code> otherwise. + * + * @param val the value to check + * + * @return <code>true</code> if the specified value is a valid color value, + * <code>false</code> otherwise + */ + public static boolean isValidColor(String val) + { + boolean ret = false; + if (val.charAt(0) == '#') + ret = true; + else + { + Set colors = COLOR_MAP.keySet(); + for (Iterator i = colors.iterator(); i.hasNext() && ret == false;) + { + String color = (String) i.next(); + if (color.equalsIgnoreCase(val)) + ret = true; + } + } + return ret; + } +} |