+package tim.prune.undo;\r
+\r
+import tim.prune.I18nManager;\r
+import tim.prune.data.TrackInfo;\r
+\r
+/**\r
+ * Operation to undo an operation (such as create marker waypoints)\r
+ * in which a number of points were appended to the track\r
+ */\r
+public class UndoAppendPoints implements UndoOperation\r
+{\r
+ private int _previousTrackLength = -1;\r
+ private int _numAppended = 0;\r
+\r
+\r
+ /**\r
+ * Constructor\r
+ */\r
+ public UndoAppendPoints(int inTrackLength)\r
+ {\r
+ _previousTrackLength = inTrackLength;\r
+ }\r
+\r
+ /**\r
+ * @param inNumPoints number of points appended to track\r
+ */\r
+ public void setNumPointsAppended(int inNumPoints)\r
+ {\r
+ _numAppended = inNumPoints;\r
+ }\r
+\r
+ /**\r
+ * @return description of operation including number of points loaded\r
+ */\r
+ public String getDescription()\r
+ {\r
+ return I18nManager.getText("undo.insert") + " (" + _numAppended + ")";\r
+ }\r
+\r
+ /**\r
+ * Perform the undo operation on the given Track\r
+ * @param inTrackInfo TrackInfo object on which to perform the operation\r
+ */\r
+ public void performUndo(TrackInfo inTrackInfo) throws UndoException\r
+ {\r
+ // crop track to previous size\r
+ inTrackInfo.getTrack().cropTo(_previousTrackLength);\r
+ // clear selection\r
+ inTrackInfo.getSelection().clearAll();\r
+ }\r
+}\r