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.Field;\r
   6 import tim.prune.data.TrackInfo;\r
   7 import tim.prune.function.edit.FieldEditList;\r
   8 \r
   9 /**\r
  10  * Operation to undo the edit of a single point\r
  11  */\r
  12 public class UndoEditPoint implements UndoOperation\r
  13 {\r
  14         private DataPoint _originalPoint = null;\r
  15         private FieldEditList _undoFieldList = null;\r
  16 \r
  17 \r
  18         /**\r
  19          * Constructor\r
  20          * @param inPoint data point\r
  21          * @param inUndoFieldList FieldEditList for undo operation\r
  22          */\r
  23         public UndoEditPoint(DataPoint inPoint, FieldEditList inUndoFieldList)\r
  24         {\r
  25                 _originalPoint = inPoint;\r
  26                 _undoFieldList = inUndoFieldList;\r
  27         }\r
  28 \r
  29 \r
  30         /**\r
  31          * @return description of operation including point name if any\r
  32          */\r
  33         public String getDescription()\r
  34         {\r
  35                 String desc = I18nManager.getText("undo.editpoint");\r
  36                 String newName = null;\r
  37                 if (_undoFieldList.getEdit(0).getField() == Field.WAYPT_NAME)\r
  38                         newName = _undoFieldList.getEdit(0).getValue();\r
  39                 String pointName = _originalPoint.getWaypointName();\r
  40                 if (newName != null && !newName.equals(""))\r
  41                         desc = desc + " " + newName;\r
  42                 else if (pointName != null && !pointName.equals(""))\r
  43                         desc = desc + " " + pointName;\r
  44                 return desc;\r
  45         }\r
  46 \r
  47 \r
  48         /**\r
  49          * Perform the undo operation on the given Track\r
  50          * @param inTrackInfo TrackInfo object on which to perform the operation\r
  51          */\r
  52         public void performUndo(TrackInfo inTrackInfo) throws UndoException\r
  53         {\r
  54                 // Restore contents of point into track\r
  55                 if (!inTrackInfo.getTrack().editPoint(_originalPoint, _undoFieldList, true))\r
  56                 {\r
  57                         // throw exception if failed\r
  58                         throw new UndoException(getDescription());\r
  59                 }\r
  60         }\r
  61 }