tim/prune/undo/UndoEditPoint.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 import tim.prune.function.edit.FieldEditList;\r
   7 \r
   8 /**\r
   9  * Operation to undo the edit of a single point\r
  10  */\r
  11 public class UndoEditPoint implements UndoOperation\r
  12 {\r
  13         private DataPoint _originalPoint = null;\r
  14         private FieldEditList _undoFieldList = null;\r
  15 \r
  16 \r
  17         /**\r
  18          * Constructor\r
  19          * @param inPoint data point\r
  20          * @param inUndoFieldList FieldEditList for undo operation\r
  21          */\r
  22         public UndoEditPoint(DataPoint inPoint, FieldEditList inUndoFieldList)\r
  23         {\r
  24                 _originalPoint = inPoint;\r
  25                 _undoFieldList = inUndoFieldList;\r
  26         }\r
  27 \r
  28 \r
  29         /**\r
  30          * @return description of operation including point name if any\r
  31          */\r
  32         public String getDescription()\r
  33         {\r
  34                 String desc = I18nManager.getText("undo.editpoint");\r
  35                 String newName = _undoFieldList.getEdit(0).getValue();\r
  36                 String pointName = _originalPoint.getWaypointName();\r
  37                 if (newName != null && !newName.equals(""))\r
  38                         desc = desc + " " + newName;\r
  39                 else if (pointName != null && !pointName.equals(""))\r
  40                         desc = desc + " " + pointName;\r
  41                 return desc;\r
  42         }\r
  43 \r
  44 \r
  45         /**\r
  46          * Perform the undo operation on the given Track\r
  47          * @param inTrackInfo TrackInfo object on which to perform the operation\r
  48          */\r
  49         public void performUndo(TrackInfo inTrackInfo) throws UndoException\r
  50         {\r
  51                 // Restore contents of point into track\r
  52                 if (!inTrackInfo.getTrack().editPoint(_originalPoint, _undoFieldList, true))\r
  53                 {\r
  54                         // throw exception if failed\r
  55                         throw new UndoException(getDescription());\r
  56                 }\r
  57         }\r
  58 }