+++ /dev/null
-package tim.prune.undo;
-
-import tim.prune.I18nManager;
-import tim.prune.UpdateMessageBroker;
-import tim.prune.data.Altitude;
-import tim.prune.data.DataPoint;
-import tim.prune.data.TrackInfo;
-
-/**
- * Undo addition/subtraction of an altitude offset
- */
-public class UndoAddAltitudeOffset implements UndoOperation
-{
- /** Start index of section */
- private int _startIndex;
- /** altitude values before operation */
- private Altitude[] _altitudes;
-
-
- /**
- * Constructor
- * @param inTrackInfo track info object
- */
- public UndoAddAltitudeOffset(TrackInfo inTrackInfo)
- {
- _startIndex = inTrackInfo.getSelection().getStart();
- final int endIndex = inTrackInfo.getSelection().getEnd();
- final int numPoints = endIndex - _startIndex + 1;
- // Make array of cloned altitude objects
- _altitudes = new Altitude[numPoints];
- for (int i=0; i<numPoints; i++) {
- Altitude a = inTrackInfo.getTrack().getPoint(_startIndex+i).getAltitude();
- if (a != null && a.isValid()) {
- _altitudes[i] = a.clone();
- }
- }
- }
-
-
- /**
- * @return description of operation including number of points adjusted
- */
- public String getDescription()
- {
- return I18nManager.getText("undo.addaltitudeoffset") + " (" + (_altitudes.length) + ")";
- }
-
-
- /**
- * Perform the undo operation on the given Track
- * @param inTrackInfo TrackInfo object on which to perform the operation
- */
- public void performUndo(TrackInfo inTrackInfo) throws UndoException
- {
- // Perform the inverse operation
- final int numPoints = _altitudes.length;
- for (int i=0; i<numPoints; i++)
- {
- DataPoint point = inTrackInfo.getTrack().getPoint(i+_startIndex);
- point.resetAltitude(_altitudes[i]);
- }
- _altitudes = null;
- inTrackInfo.getSelection().markInvalid();
- UpdateMessageBroker.informSubscribers();
- }
-}