JAL-1674 update both status bars when mousing over linked sequences

[jalview.git] / src / jalview / util / ColorUtils.java

diff --git a/src/jalview/util/ColorUtils.java b/src/jalview/util/ColorUtils.java
index f108da1..44ce010 100644 (file)
--- a/src/jalview/util/ColorUtils.java
+++ b/src/jalview/util/ColorUtils.java
@@ -59,4 +59,48 @@ public class ColorUtils
 
   }
 
+  /**
+   * Convert to Tk colour code format
+   * 
+   * @param colour
+   * @return
+   * @see http
+   *      ://www.cgl.ucsf.edu/chimera/current/docs/UsersGuide/colortool.html#
+   *      tkcode
+   */
+  public static final String toTkCode(Color colour)
+  {
+    String colstring = "#" + ((colour.getRed() < 16) ? "0" : "")
+            + Integer.toHexString(colour.getRed())
+            + ((colour.getGreen() < 16) ? "0" : "")
+            + Integer.toHexString(colour.getGreen())
+            + ((colour.getBlue() < 16) ? "0" : "")
+            + Integer.toHexString(colour.getBlue());
+    return colstring;
+  }
+
+  /**
+   * 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();
+  }
+
 }