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package tim.prune.cmd;
import tim.prune.DataSubscriber;
import tim.prune.data.Field;
import tim.prune.data.Track;
import tim.prune.data.TrackInfo;
import tim.prune.data.UnitSet;
import tim.prune.function.edit.PointEdit;
import java.util.ArrayList;
import java.util.List;
/**
* Command to edit a single field applied to one or more points
*/
public class EditSingleFieldCmd extends Command
{
private final Field _field;
private final List<PointEdit> _editList;
private final UnitSet _unitSet;
public EditSingleFieldCmd(Field inField, List<PointEdit> inEditList, UnitSet inUnitSet) {
this(null, inField, inEditList, inUnitSet);
}
protected EditSingleFieldCmd(EditSingleFieldCmd inParent, Field inField,
List<PointEdit> inEditList, UnitSet inUnitSet)
{
super(inParent);
_field = inField;
_editList = inEditList;
_unitSet = inUnitSet;
}
@Override
public int getUpdateFlags() {
return DataSubscriber.DATA_EDITED;
}
@Override
protected boolean executeCommand(TrackInfo inInfo)
{
if (_field == null) {
return false;
}
inInfo.getTrack().getFieldList().addField(_field);
for (PointEdit edit : _editList) {
inInfo.getTrack().getPoint(edit.getPointIndex()).setFieldValue(_field, edit.getValue(), _unitSet, isUndo());
}
if (_field == Field.LATITUDE || _field == Field.LONGITUDE) {
inInfo.getTrack().requestRescale();
}
return true;
}
@Override
protected Command makeInverse(TrackInfo inInfo) {
return new EditSingleFieldCmd(this, _field, makeOppositeEdits(inInfo.getTrack()), _unitSet);
}
private List<PointEdit> makeOppositeEdits(Track inTrack)
{
List<PointEdit> opposite = new ArrayList<>();
for (PointEdit edit : _editList)
{
final String currValue = inTrack.getPoint(edit.getPointIndex()).getFieldValue(_field);
opposite.add(new PointEdit(edit.getPointIndex(), currValue));
}
return opposite;
}
}
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