JAL-2728 use right denominator for min/max ratio calculations

diff --git a/src/jalview/gui/SplitFrame.java b/src/jalview/gui/SplitFrame.java
index d28bb14..c23ed7c 100644 (file)
--- a/src/jalview/gui/SplitFrame.java
+++ b/src/jalview/gui/SplitFrame.java
@@ -228,19 +228,19 @@ public class SplitFrame extends GSplitFrame implements SplitContainerI
      * two sequences visible in the top panel
      */
     int topPanelHeight = topFrame.getHeight();
+    int bottomPanelHeight = bottomFrame.getHeight();
     int topSequencesHeight = topFrame.alignPanel.getSeqPanel().seqCanvas
             .getHeight();
     int topPanelMinHeight = topPanelHeight
             - Math.max(0,
                     topSequencesHeight - 2 * topViewport.getCharHeight());
-    int myHeight = getHeight();
-    double minRatio = topPanelMinHeight / (double) myHeight;
+    double totalHeight = (double) topPanelHeight + bottomPanelHeight;
+    double minRatio = topPanelMinHeight / totalHeight;
 
     /*
      * calculate the maximum ratio that leaves at least 
      * two sequences visible in the bottom panel
      */
-    int bottomPanelHeight = bottomFrame.getHeight();
     int bottomSequencesHeight = bottomFrame.alignPanel.getSeqPanel().seqCanvas
             .getHeight();
     int bottomPanelMinHeight = bottomPanelHeight
@@ -248,7 +248,7 @@ public class SplitFrame extends GSplitFrame implements SplitContainerI
                     0,
                     bottomSequencesHeight - 2
                             * bottomViewport.getCharHeight());
-    double maxRatio = (myHeight - bottomPanelMinHeight) / (double) myHeight;
+    double maxRatio = (totalHeight - bottomPanelMinHeight) / totalHeight;
 
     /*
      * estimate ratio of (topFrameContent / bottomFrameContent)