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