X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Futil%2FFormat.java;fp=src%2Fjalview%2Futil%2FFormat.java;h=712198547eb03dc64ec003455aa957410866310c;hb=83c546d91b47e08f790ad41f88d58e587905d0bc;hp=d14e4ad992f4c51e50c6b1fc24c440293cdfc11b;hpb=f269ceeb37293f592c4916dd91cff9c4fdd3f874;p=jalview.git

diff --git a/src/jalview/util/Format.java b/src/jalview/util/Format.java
index d14e4ad..7121985 100755
--- a/src/jalview/util/Format.java
+++ b/src/jalview/util/Format.java
@@ -947,4 +947,29 @@ public class Format
   {
     return formatString;
   }
+
+  /**
+   * Bespoke method to format percentage float value to the specified number of
+   * decimal places. Avoids use of general-purpose format parsers as a
+   * processing hotspot.
+   * 
+   * @param sb
+   * @param value
+   * @param dp
+   */
+  public static void appendPercentage(StringBuilder sb, float value, int dp)
+  {
+    sb.append((int) value);
+    if (dp > 0)
+    {
+      sb.append(".");
+      while (dp > 0)
+      {
+        value = value - (int) value;
+        value *= 10;
+        sb.append((int) value);
+        dp--;
+      }
+    }
+  }
 }