Do not recompute Hausdorff distance if not necessary (feature point is not selected)

import cz.fidentis.analyst.feature.FeaturePointType;

import cz.fidentis.analyst.scene.DrawableFeaturePoints;

import cz.fidentis.analyst.symmetry.SymmetryPanel;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import javax.swing.AbstractAction;

import javax.swing.BorderFactory;

import javax.swing.ImageIcon;

import javax.swing.JCheckBox;

            final JTextField sliderInput = fpBuilder.addSliderOptionLine(null, null, 100, null);

            sliderInput.setText(ControlPanelBuilder.doubleToStringLocale(DrawableFeaturePoints.DEFAULT_SIZE));

            sliderInput.postActionEvent(); // Set correct position of slider

            sliderInput.addActionListener(createListener(action, ACTION_COMMAND_DISTANCE_RECOMPUTE));

            sliderInput.addActionListener(new AbstractAction() {

                private final ActionListener listener = createListener(action, ACTION_COMMAND_DISTANCE_RECOMPUTE);

                @Override

                public void actionPerformed(ActionEvent ae) {

                    if (!checkBox.isSelected()) {

                        return;

                    }

                    listener.actionPerformed(ae); // Recompute only if the feature point is selected

                }

            });

            sliderInput.addActionListener(createListener(action, ACTION_COMMAND_FEATURE_POINT_RESIZE, i));

            fpBuilder.addGap();