Merge branch 'patch/JAL-3692enaEndpointFlatfile' into releases/Release_2_11_1_Branch

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

diff --git a/src/jalview/util/MappingUtils.java b/src/jalview/util/MappingUtils.java
index b552c21..915293e 100644 (file)
--- a/src/jalview/util/MappingUtils.java
+++ b/src/jalview/util/MappingUtils.java
@@ -1020,4 +1020,23 @@ public final class MappingUtils
       }
     }
   }
+
+  /**
+   * Converts a list of [start, end] ranges to a single array of [start, end,
+   * start, end ...]
+   * 
+   * @param ranges
+   * @return
+   */
+  public static int[] listToArray(List<int[]> ranges)
+  {
+    int[] result = new int[ranges.size() * 2];
+    int i = 0;
+    for (int[] range : ranges)
+    {
+      result[i++] = range[0];
+      result[i++] = range[1];
+    }
+    return result;
+  }
 }