X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Futil%2FColorUtils.java;h=fd760862fdfcafa70938a49f2c787abbb58b7d94;hb=e0273ccaa778d70fea45dcca68b31f0cb66310f0;hp=1ab63617525d849daa255101c9bba52968db4080;hpb=b2f9a8d7bce642ff4011bc6d49e02bb0569fbb11;p=jalview.git

diff --git a/src/jalview/util/ColorUtils.java b/src/jalview/util/ColorUtils.java
index 1ab6361..fd76086 100644
--- a/src/jalview/util/ColorUtils.java
+++ b/src/jalview/util/ColorUtils.java
@@ -1,19 +1,21 @@
 /*
- * Jalview - A Sequence Alignment Editor and Viewer (Version 2.8.1)
+ * Jalview - A Sequence Alignment Editor and Viewer (Version 2.8.2)
  * Copyright (C) 2014 The Jalview Authors
  * 
  * This file is part of Jalview.
  * 
  * Jalview 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 3 of the License, or (at your option) any later version.
+ * as published by the Free Software Foundation, either version 3
+ * of the License, or (at your option) any later version.
  *  
  * Jalview 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 Jalview.  If not, see <http://www.gnu.org/licenses/>.
+ * You should have received a copy of the GNU General Public License
+ * along with Jalview.  If not, see <http://www.gnu.org/licenses/>.
  * The Jalview Authors are detailed in the 'AUTHORS' file.
  */
 /**
@@ -57,4 +59,28 @@ public class ColorUtils
 
   }
 
+  /**
+   * Returns a colour three shades darker. Note you can't guarantee that
+   * brighterThan reverses this, as darkerThan may result in black.
+   * 
+   * @param col
+   * @return
+   */
+  public static Color darkerThan(Color col)
+  {
+    return col == null ? null : col.darker().darker().darker();
+  }
+
+  /**
+   * Returns a colour three shades brighter. Note you can't guarantee that
+   * darkerThan reverses this, as brighterThan may result in white.
+   * 
+   * @param col
+   * @return
+   */
+  public static Color brighterThan(Color col)
+  {
+    return col == null ? null : col.brighter().brighter().brighter();
+  }
+
 }