1 /*-------------------------------------------------------------------------- 2 * Copyright 2010 utgenome.org 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 *--------------------------------------------------------------------------*/ 16 //-------------------------------------- 17 // utgb-core Project 18 // 19 // ColorUtil.java 20 // Since: 2010/10/08 21 // 22 //-------------------------------------- 23 package org.utgenome.gwt.utgb.client.canvas; 24 25 import com.google.gwt.widgetideas.graphics.client.Color; 26 27 /** 28 * Color code generator 29 * 30 * @author leo 31 * 32 */ 33 public class ColorUtil { 34 35 public static Color toColor(String hex) { 36 if (hex.startsWith("#")) 37 hex = hex.substring(1); 38 39 int r = Integer.parseInt(hex.substring(0, 2), 16); 40 int g = Integer.parseInt(hex.substring(2, 4), 16); 41 int b = Integer.parseInt(hex.substring(4, 6), 16); 42 Color c = new Color(r, g, b); 43 return c; 44 } 45 46 public static Color toColor(String hex, float alpha) { 47 if (hex.startsWith("#")) 48 hex = hex.substring(1); 49 50 int r = Integer.parseInt(hex.substring(0, 2), 16); 51 int g = Integer.parseInt(hex.substring(2, 4), 16); 52 int b = Integer.parseInt(hex.substring(4, 6), 16); 53 return new Color(r, g, b, alpha); 54 } 55 56 }