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| /* | ||
| * Copyright (c) 2002-2024 Gargoyle Software Inc. | ||
| * | ||
| * Licensed 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 | ||
| * https://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. | ||
| */ | ||
| package org.htmlunit.css; | ||
|
|
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| import java.util.HashMap; | ||
| import java.util.Locale; | ||
| import java.util.Map; | ||
|
|
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| /** | ||
| * Helper to work with colors. | ||
| * | ||
| * @author Ronald Brill | ||
| */ | ||
| public final class CssColors { | ||
|
|
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| private static final Map<String, String> CSSColors_ = new HashMap<>(); | ||
|
|
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| static { | ||
| CSSColors_.put("aqua", "rgb(0, 255, 255)"); | ||
| CSSColors_.put("black", "rgb(0, 0, 0)"); | ||
| CSSColors_.put("blue", "rgb(0, 0, 255)"); | ||
| CSSColors_.put("fuchsia", "rgb(255, 0, 255)"); | ||
| CSSColors_.put("gray", "rgb(128, 128, 128)"); | ||
| CSSColors_.put("green", "rgb(0, 128, 0)"); | ||
| CSSColors_.put("lime", "rgb(0, 255, 0)"); | ||
| CSSColors_.put("maroon", "rgb(128, 0, 0)"); | ||
| CSSColors_.put("navy", "rgb(0, 0, 128)"); | ||
| CSSColors_.put("olive", "rgb(128, 128, 0)"); | ||
| CSSColors_.put("purple", "rgb(128, 0, 128)"); | ||
| CSSColors_.put("red", "rgb(255, 0, 0)"); | ||
| CSSColors_.put("silver", "rgb(192, 192, 192)"); | ||
| CSSColors_.put("teal", "rgb(0, 128, 128)"); | ||
| CSSColors_.put("white", "rgb(255, 255, 255)"); | ||
| CSSColors_.put("yellow", "rgb(255, 255, 0)"); | ||
| } | ||
|
|
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| private CssColors() { | ||
| } | ||
|
|
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| /** | ||
| * Returns if the specified token is a reserved color keyword. | ||
| * @param token the token to check | ||
| * @return whether the token is a reserved color keyword or not | ||
| */ | ||
| public static boolean isColorKeyword(final String token) { | ||
| return CSSColors_.containsKey(token.toLowerCase(Locale.ROOT)); | ||
| } | ||
|
|
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| /** | ||
| * Gets the RGB equivalent of a CSS color if the provided color is recognized. | ||
| * @param color the color | ||
| * @return the provided color if this is not a recognized color keyword, the RGB value | ||
| * in the form "rgb(x, y, z)" otherwise | ||
| */ | ||
| public static String toRGBColor(final String color) { | ||
| final String rgbValue = CSSColors_.get(color.toLowerCase(Locale.ROOT)); | ||
| if (rgbValue != null) { | ||
| return rgbValue; | ||
| } | ||
| return color; | ||
| } | ||
| } |
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