tim/prune/undo/UndoCreatePoint.java

   1 package tim.prune.undo;
   2
   3 import tim.prune.I18nManager;
   4 import tim.prune.data.TrackInfo;
   5
   6 /**
   7  * Undo creation of new point
   8  */
   9 public class UndoCreatePoint implements UndoOperation
  10 {
  11         /**
  12          * @return description of operation
  13          */
  14         public String getDescription()
  15         {
  16                 return I18nManager.getText("undo.createpoint");
  17         }
  18
  19
  20         /**
  21          * Perform the undo operation on the given Track
  22          * @param inTrackInfo TrackInfo object on which to perform the operation
  23          */
  24         public void performUndo(TrackInfo inTrackInfo) throws UndoException
  25         {
  26                 if (inTrackInfo.getTrack().getNumPoints() < 1)
  27                 {
  28                         throw new UndoException(getDescription());
  29                 }
  30                 // Reset selection if last point selected
  31                 if (inTrackInfo.getSelection().getCurrentPointIndex() == (inTrackInfo.getTrack().getNumPoints()-1)) {
  32                         inTrackInfo.getSelection().clearAll(); // Note: Informers told twice now!
  33                 }
  34                 // Remove last point
  35                 inTrackInfo.getTrack().cropTo(inTrackInfo.getTrack().getNumPoints() - 1);
  36         }
  37 }