/*
* Copyright 2011 Red Hat, Inc. and/or its affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.optaplanner.examples.tsp.swingui;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import javax.swing.AbstractAction;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JViewport;
import javax.swing.Scrollable;
import javax.swing.SwingConstants;
import org.optaplanner.examples.tsp.domain.Domicile;
import org.optaplanner.examples.tsp.domain.Standstill;
import org.optaplanner.examples.tsp.domain.TspSolution;
import org.optaplanner.examples.tsp.domain.Visit;
import org.optaplanner.swing.impl.TangoColorFactory;
public class TspListPanel extends JPanel implements Scrollable {
public static final Dimension PREFERRED_SCROLLABLE_VIEWPORT_SIZE = new Dimension(800, 600);
private static final Color HEADER_COLOR = TangoColorFactory.BUTTER_1;
private final TspPanel tspPanel;
public TspListPanel(TspPanel tspPanel) {
this.tspPanel = tspPanel;
setLayout(new GridLayout(0, 1));
}
public void resetPanel(TspSolution tspSolution) {
removeAll();
if (tspSolution.getVisitList().size() > 1000) {
JLabel tooBigLabel = new JLabel("The dataset is too big to show.");
add(tooBigLabel);
return;
}
Domicile domicile = tspSolution.getDomicile();
add(new JLabel(domicile.getLocation().toString()));
// TODO If the model contains the nextVisit like in vehicle routing, use that instead
Map<Standstill, Visit> nextVisitMap = new LinkedHashMap<>();
List<Visit> unassignedVisitList = new ArrayList<>();
for (Visit visit : tspSolution.getVisitList()) {
if (visit.getPreviousStandstill() != null) {
nextVisitMap.put(visit.getPreviousStandstill(), visit);
} else {
unassignedVisitList.add(visit);
}
}
Visit lastVisit = null;
for (Visit visit = nextVisitMap.get(domicile); visit != null; visit = nextVisitMap.get(visit)) {
addVisitButton(tspSolution, visit);
lastVisit = visit;
}
if (lastVisit != null) {
JPanel backToDomicilePanel = new JPanel(new GridLayout(1, 2));
backToDomicilePanel.add(new JLabel("Back to " + domicile.getLocation()));
JLabel distanceLabel = new JLabel(
lastVisit.getDistanceTo(domicile) + " " + tspSolution.getDistanceUnitOfMeasurement());
distanceLabel.setHorizontalAlignment(SwingConstants.RIGHT);
backToDomicilePanel.add(distanceLabel);
add(backToDomicilePanel);
}
add(new JLabel("Unassigned"));
for (Visit visit : unassignedVisitList) {
addVisitButton(tspSolution, visit);
}
}
protected void addVisitButton(TspSolution tspSolution, Visit visit) {
JPanel visitPanel = new JPanel(new GridLayout(1, 2));
JButton button = new JButton(new VisitAction(visit));
visitPanel.add(button);
String distanceLabelString;
if (visit.getPreviousStandstill() == null) {
distanceLabelString = "Unassigned";
} else {
distanceLabelString = visit.getDistanceFromPreviousStandstill() + " " + tspSolution.getDistanceUnitOfMeasurement();
}
JLabel distanceLabel = new JLabel(distanceLabelString);
distanceLabel.setHorizontalAlignment(SwingConstants.RIGHT);
visitPanel.add(distanceLabel);
add(visitPanel);
}
public void updatePanel(TspSolution tspSolution) {
resetPanel(tspSolution);
}
private class VisitAction extends AbstractAction {
private Visit visit;
public VisitAction(Visit visit) {
super(visit.getLocation().toString());
this.visit = visit;
}
@Override
public void actionPerformed(ActionEvent e) {
TspSolution tspSolution = tspPanel.getSolution();
JComboBox previousStandstillListField = new JComboBox();
for (Standstill previousStandstill : tspSolution.getVisitList()) {
previousStandstillListField.addItem(previousStandstill);
}
previousStandstillListField.addItem(tspSolution.getDomicile());
previousStandstillListField.setSelectedItem(visit.getPreviousStandstill());
int result = JOptionPane.showConfirmDialog(TspListPanel.this.getRootPane(), previousStandstillListField,
"Visit " + visit.getLocation() + " after", JOptionPane.OK_CANCEL_OPTION);
if (result == JOptionPane.OK_OPTION) {
Standstill toStandstill = (Standstill) previousStandstillListField.getSelectedItem();
tspPanel.doMove(visit, toStandstill);
tspPanel.getWorkflowFrame().resetScreen();
}
}
}
@Override
public Dimension getPreferredScrollableViewportSize() {
return PREFERRED_SCROLLABLE_VIEWPORT_SIZE;
}
@Override
public int getScrollableUnitIncrement(Rectangle visibleRect, int orientation, int direction) {
return 20;
}
@Override
public int getScrollableBlockIncrement(Rectangle visibleRect, int orientation, int direction) {
return 20;
}
@Override
public boolean getScrollableTracksViewportWidth() {
if (getParent() instanceof JViewport) {
return (((JViewport) getParent()).getWidth() > getPreferredSize().width);
}
return false;
}
@Override
public boolean getScrollableTracksViewportHeight() {
if (getParent() instanceof JViewport) {
return (((JViewport) getParent()).getHeight() > getPreferredSize().height);
}
return false;
}
}