--- /dev/null
+package tim.prune.undo;\r
+\r
+import tim.prune.I18nManager;\r
+import tim.prune.UpdateMessageBroker;\r
+import tim.prune.data.DataPoint;\r
+import tim.prune.data.Field;\r
+import tim.prune.data.Track;\r
+import tim.prune.data.TrackInfo;\r
+\r
+/**\r
+ * Operation to undo a conversion from names to times\r
+ */\r
+public class UndoConvertNamesToTimes implements UndoOperation\r
+{\r
+ /** Start and end indices of section */\r
+ private int _startIndex, _endIndex;\r
+ /** Waypoint names before operation */\r
+ private String[] _waypointNames = null;\r
+ /** Timestamp strings before operation */\r
+ private String[] _timestamps = null;\r
+\r
+ /**\r
+ * Constructor\r
+ * @param inTrackInfo track info object to copy values from\r
+ */\r
+ public UndoConvertNamesToTimes(TrackInfo inTrackInfo)\r
+ {\r
+ _startIndex = inTrackInfo.getSelection().getStart();\r
+ _endIndex = inTrackInfo.getSelection().getEnd();\r
+ final int numPoints = _endIndex - _startIndex + 1;\r
+ _waypointNames = new String[numPoints];\r
+ _timestamps = new String[numPoints];\r
+ // Loop over points in selection, and copy names and timestamps\r
+ for (int i=_startIndex; i<=_endIndex; i++)\r
+ {\r
+ DataPoint point = inTrackInfo.getTrack().getPoint(i);\r
+ if (point.isWaypoint())\r
+ {\r
+ _waypointNames[i-_startIndex] = point.getWaypointName();\r
+ _timestamps[i-_startIndex] = point.getFieldValue(Field.TIMESTAMP);\r
+ }\r
+ }\r
+ }\r
+\r
+\r
+ /**\r
+ * @return description of operation\r
+ */\r
+ public String getDescription()\r
+ {\r
+ return I18nManager.getText("undo.convertnamestotimes");\r
+ }\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
+ // Sanity check\r
+ Track track = inTrackInfo.getTrack();\r
+ if (track.getNumPoints() <= _endIndex || _endIndex <= _startIndex) {\r
+ throw new UndoException("Cannot undo conversion, track length doesn't match");\r
+ }\r
+ // Loop over points in selection and replace names and timestamps\r
+ for (int i=_startIndex; i<=_endIndex; i++)\r
+ {\r
+ String storedName = _waypointNames[i-_startIndex];\r
+ if (storedName != null)\r
+ {\r
+ // point had a name before the operation, so might have been converted\r
+ DataPoint point = track.getPoint(i);\r
+ point.setFieldValue(Field.WAYPT_NAME, storedName, true);\r
+ point.setFieldValue(Field.TIMESTAMP, _timestamps[i-_startIndex], true);\r
+ }\r
+ }\r
+ track.requestRescale();\r
+ UpdateMessageBroker.informSubscribers();\r
+ }\r
+}\r