tim/prune/undo/UndoDeletePoint.java

   1 package tim.prune.undo;\r
   2 \r
   3 import tim.prune.I18nManager;\r
   4 import tim.prune.data.DataPoint;\r
   5 import tim.prune.data.TrackInfo;\r
   6 \r
   7 /**\r
   8  * Operation to undo a delete of a single point\r
   9  */\r
  10 public class UndoDeletePoint implements UndoOperation\r
  11 {\r
  12         private int _pointIndex = -1;\r
  13         private DataPoint _point = null;\r
  14 \r
  15 \r
  16         /**\r
  17          * Constructor\r
  18          * @param inIndex index number of point within track\r
  19          * @param inPoint data point\r
  20          */\r
  21         public UndoDeletePoint(int inIndex, DataPoint inPoint)\r
  22         {\r
  23                 _pointIndex = inIndex;\r
  24                 _point = inPoint;\r
  25         }\r
  26 \r
  27 \r
  28         /**\r
  29          * @return description of operation including point name if any\r
  30          */\r
  31         public String getDescription()\r
  32         {\r
  33                 String desc = I18nManager.getText("undo.deletepoint");\r
  34                 String pointName = _point.getWaypointName();\r
  35                 if (pointName != null && !pointName.equals(""))\r
  36                         desc = desc + " " + pointName;\r
  37                 return desc;\r
  38         }\r
  39 \r
  40 \r
  41         /**\r
  42          * Perform the undo operation on the given Track\r
  43          * @param inTrack Track object on which to perform the operation\r
  44          */\r
  45         public void performUndo(TrackInfo inTrackInfo) throws UndoException\r
  46         {\r
  47                 // restore point into track\r
  48                 if (!inTrackInfo.getTrack().insertPoint(_point, _pointIndex))\r
  49                 {\r
  50                         throw new UndoException(getDescription());\r
  51                 }\r
  52                 // TODO: Reinsert photo into list if necessary\r
  53         }\r
  54 }