JAL-2388 Applied ViewportRanges to code

[jalview.git] / src / jalview / viewmodel / ViewportRanges.java

diff --git a/src/jalview/viewmodel/ViewportRanges.java b/src/jalview/viewmodel/ViewportRanges.java
index 5c8cdb6..c91d2d9 100644 (file)
--- a/src/jalview/viewmodel/ViewportRanges.java
+++ b/src/jalview/viewmodel/ViewportRanges.java
@@ -25,7 +25,9 @@ import jalview.datamodel.AlignmentI;
 /**
  * Embryonic class which: Supplies and updates viewport properties relating to
  * position such as: start and end residues and sequences; ideally will serve
- * hidden columns/rows too
+ * hidden columns/rows too. Intention also to support calculations for
+ * positioning, scrolling etc. such as finding the middle of the viewport,
+ * checking for scrolls off screen
  */
 public class ViewportRanges extends ViewportProperties
 {