change method signature to allow caller to test if panel actually scrolled or not

diff --git a/src/jalview/gui/AlignmentPanel.java b/src/jalview/gui/AlignmentPanel.java
index eaa685d..bbd9f72 100755 (executable)
--- a/src/jalview/gui/AlignmentPanel.java
+++ b/src/jalview/gui/AlignmentPanel.java
@@ -236,39 +236,42 @@ public class AlignmentPanel extends GAlignmentPanel implements
    * region in results (if any) and redraw the overview
    * @param results
    */
-  public void scrollToPosition(SearchResults results) {
-    scrollToPosition(results, true);
+  public boolean scrollToPosition(SearchResults results) {
+    return scrollToPosition(results, true);
   }
   /**
    * scroll the view to show the position of the highlighted
    * region in results (if any)
    * @param results
    * @param redrawOverview - when set, the overview will be recalculated (takes longer)
+   * @return false if results were not found
    */
-  public void scrollToPosition(SearchResults results, boolean redrawOverview) {
+  public boolean scrollToPosition(SearchResults results, boolean redrawOverview) {
+    // TODO: properly locate search results in view when large numbers of hidden columns exist before highlighted region
     // do we need to scroll the panel?
     if (results != null && results.getSize()>0)
     {
       int seqIndex = av.alignment.findIndex(results);
       if (seqIndex==-1)
       {
-        return;
+        return false;
       }
       SequenceI seq = av.alignment.getSequenceAt(seqIndex);
+      
       int [] r = results.getResults(seq, seq.getStart(), seq.getEnd());
       if (r==null)
       {
-        return;
+        return false;
       }
       int start = r[0];
       int end = r[1];
       if (start<0)
       {
-        return;
+        return false;
       }
       if (end==seq.getEnd())
       {
-        return;
+        return false;
       }
       if (!av.wrapAlignment)
       {
@@ -291,6 +294,7 @@ public class AlignmentPanel extends GAlignmentPanel implements
       overviewPanel.setBoxPosition();
     } 
     paintAlignment(!redrawOverview);
+    return true;
   }
 
   void scrollToWrappedVisible(int res)