+++ /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 the deletion of field values\r
- */\r
-public class UndoDeleteFieldValues implements UndoOperation\r
-{\r
- /** Start and end indices of section */\r
- private int _startIndex, _endIndex;\r
- /** Field to be deleted */\r
- private Field _field = null;\r
- /** Field values before operation */\r
- private String[] _fieldValues = null;\r
-\r
- /**\r
- * Constructor\r
- * @param inTrackInfo track info object to copy values from\r
- * @param inField field to delete\r
- */\r
- public UndoDeleteFieldValues(TrackInfo inTrackInfo, Field inField)\r
- {\r
- _startIndex = inTrackInfo.getSelection().getStart();\r
- _endIndex = inTrackInfo.getSelection().getEnd();\r
- final int numPoints = _endIndex - _startIndex + 1;\r
- _fieldValues = new String[numPoints];\r
- _field = inField;\r
- // Loop over points in selection, and copy field values\r
- for (int i=_startIndex; i<=_endIndex; i++)\r
- {\r
- DataPoint point = inTrackInfo.getTrack().getPoint(i);\r
- _fieldValues[i-_startIndex] = point.getFieldValue(inField);\r
- }\r
- }\r
-\r
-\r
- /**\r
- * @return description of operation\r
- */\r
- public String getDescription()\r
- {\r
- return I18nManager.getText("undo.deletefieldvalues");\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 field values\r
- for (int i=_startIndex; i<=_endIndex; i++)\r
- {\r
- String storedValue = _fieldValues[i-_startIndex];\r
- if (storedValue != null) {\r
- track.getPoint(i).setFieldValue(_field, storedValue, true);\r
- }\r
- }\r
- track.requestRescale();\r
- inTrackInfo.getSelection().markInvalid();\r
- UpdateMessageBroker.informSubscribers();\r
- }\r
-}\r