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package tim.prune.cmd;
import tim.prune.DataSubscriber;
import tim.prune.data.DataPoint;
import tim.prune.data.Field;
import tim.prune.data.Track;
import tim.prune.data.TrackInfo;
import tim.prune.data.Unit;
import tim.prune.function.edit.PointAltitudeEdit;
import java.util.ArrayList;
import java.util.List;
/**
* Command to edit the altitude values of one or more points
*/
public class EditAltitudeCmd extends Command
{
/** List of all the edits to be made */
private final List<PointAltitudeEdit> _editList;
/**
* Constructor
* @param inEditList list of edits
*/
public EditAltitudeCmd(List<PointAltitudeEdit> inEditList) {
this(null, inEditList);
}
/**
* Constructor giving parent as well (to construct an Undo)
* @param inParent parent command
* @param inEditList edit list
*/
protected EditAltitudeCmd(EditAltitudeCmd inParent, List<PointAltitudeEdit> inEditList)
{
super(inParent);
_editList = inEditList;
}
@Override
public int getUpdateFlags() {
return DataSubscriber.DATA_EDITED;
}
@Override
protected boolean executeCommand(TrackInfo inInfo) {
return executeCommand(inInfo.getTrack());
}
/**
* Additional entry point when the App isn't involved
* @param inTrack track object (for terrain data)
* @return true on success
*/
public boolean executeCommand(Track inTrack)
{
for (PointAltitudeEdit edit : _editList)
{
DataPoint point = inTrack.getPoint(edit.getPointIndex());
point.setAltitude(edit.getValue(), edit.getUnit(), isUndo());
}
inTrack.requestRescale();
return !_editList.isEmpty();
}
@Override
protected Command makeInverse(TrackInfo inInfo) {
return new EditAltitudeCmd(this, makeOppositeEdits(inInfo.getTrack()));
}
/**
* Copy the altitudes from the current track to make an Undo command
* @param inTrack track object
* @return reverse edit list
*/
private List<PointAltitudeEdit> makeOppositeEdits(Track inTrack)
{
List<PointAltitudeEdit> opposite = new ArrayList<>();
for (PointAltitudeEdit edit : _editList)
{
DataPoint point = inTrack.getPoint(edit.getPointIndex());
final String currValue;
final Unit currUnit;
if (point.hasAltitude()) {
currValue = point.getFieldValue(Field.ALTITUDE);
currUnit = point.getAltitude().getUnit();
}
else {
currValue = null;
currUnit = null;
}
opposite.add(new PointAltitudeEdit(edit.getPointIndex(), currValue, currUnit));
}
return opposite;
}
}
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