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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  }