X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fgui%2FAlignViewport.java;h=f386bf323d75a45aef6eb924dc0d6ca7e7a58895;hb=c16d6b192b294503d2bd16294454cfe136426e7d;hp=fd1fa7d992089a066fec858fff415cce7c7f5747;hpb=bdffa0f9868c4600039b0aadea11d4f0bebcac69;p=jalview.git

diff --git a/src/jalview/gui/AlignViewport.java b/src/jalview/gui/AlignViewport.java
index fd1fa7d..f386bf3 100755
--- a/src/jalview/gui/AlignViewport.java
+++ b/src/jalview/gui/AlignViewport.java
@@ -2177,5 +2177,29 @@ public class AlignViewport implements SelectionSource
   {
     return this.showConsensusHistogram;
   }
-  
+  /**
+   * synthesize a column selection if none exists so it covers the given selection group.
+   * if wholewidth is false,  no column selection is made if the selection group covers the whole alignment width.
+   * @param sg
+   * @param wholewidth 
+   */
+  public void expandColSelection(SequenceGroup sg, boolean wholewidth)
+  {
+    int sgs,sge;
+    if (sg!=null && (sgs=sg.getStartRes())>=0 && sg.getStartRes()<=(sge=sg.getEndRes())&& (colSel==null || colSel.getSelected()==null || colSel.getSelected().size()==0))
+    {
+      if (!wholewidth && alignment.getWidth()==(1+sge-sgs))
+      {
+        // do nothing 
+        return;
+      }
+      if (colSel==null)
+      {
+        colSel = new ColumnSelection();
+      }
+      for (int cspos = sg.getStartRes(); cspos<=sg.getEndRes(); cspos++) {
+        colSel.addElement(cspos);
+      }
+    }    
+  }
 }