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package tim.prune.undo;
import tim.prune.I18nManager;
import tim.prune.data.DataPoint;
import tim.prune.data.TrackInfo;
/**
* Operation to undo an insertion (eg average)
*/
public class UndoInsert implements UndoOperation
{
private int _startPosition = 0;
private int _numInserted = 0;
private boolean _hasSegmentFlag = false;
private boolean _segmentFlag = false;
/**
* Constructor without segment flag
* @param inStart start of insert
* @param inNumInserted number of points inserted
*/
public UndoInsert(int inStart, int inNumInserted)
{
this(inStart, inNumInserted, false, false);
}
/**
* Constructor with segment flag
* @param inStart start of insert
* @param inNumInserted number of points inserted
* @param inSegmentFlag segment flag of following point
*/
public UndoInsert(int inStart, int inNumInserted, boolean inSegmentFlag)
{
this(inStart, inNumInserted, true, inSegmentFlag);
}
/**
* Constructor
* @param inStart start of insert
* @param inNumInserted number of points inserted
* @param inHasFlag is there a segment flag present
* @param inFlag segment flag, if any
*/
public UndoInsert(int inStart, int inNumInserted, boolean inHasFlag, boolean inFlag)
{
_startPosition = inStart;
_numInserted = inNumInserted;
_hasSegmentFlag = inHasFlag;
_segmentFlag = inFlag;
}
/**
* @return description of operation including parameters
*/
public String getDescription()
{
return I18nManager.getText("undo.insert") + " (" + _numInserted + ")";
}
/**
* Perform the undo operation on the given TrackInfo
* @param inTrackInfo TrackInfo object on which to perform the operation
*/
public void performUndo(TrackInfo inTrackInfo) throws UndoException
{
// restore track to previous values
inTrackInfo.getTrack().deleteRange(_startPosition, _startPosition + _numInserted - 1);
if (_hasSegmentFlag) {
DataPoint nextPoint = inTrackInfo.getTrack().getNextTrackPoint(_startPosition);
if (nextPoint != null) {nextPoint.setSegmentStart(_segmentFlag);}
}
// reset selection
inTrackInfo.getSelection().clearAll();
}
}
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