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OptaPlanner solves planning problems. This lightweight, embeddable planning engine implements powerful and scalable algorithms to optimize business resource scheduling and planning. This module contains the examples which demonstrate how to use it in a normal Java application.

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/*
 * Copyright 2012 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.vehiclerouting.swingui;

import java.awt.Graphics;
import java.awt.event.ComponentAdapter;
import java.awt.event.ComponentEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.image.BufferedImage;
import javax.swing.JPanel;

import org.optaplanner.examples.common.swingui.latitudelongitude.LatitudeLongitudeTranslator;
import org.optaplanner.examples.vehiclerouting.domain.VehicleRoutingSolution;

public class VehicleRoutingWorldPanel extends JPanel {

    private final VehicleRoutingPanel vehicleRoutingPanel;

    private VehicleRoutingSolutionPainter solutionPainter = new VehicleRoutingSolutionPainter();

    public VehicleRoutingWorldPanel(VehicleRoutingPanel vehicleRoutingPanel) {
        this.vehicleRoutingPanel = vehicleRoutingPanel;
        solutionPainter = new VehicleRoutingSolutionPainter();
        addComponentListener(new ComponentAdapter() {
            @Override
            public void componentResized(ComponentEvent e) {
                // TODO Not thread-safe during solving
                VehicleRoutingSolution solution = VehicleRoutingWorldPanel.this.vehicleRoutingPanel.getSolution();
                if (solution != null) {
                    resetPanel(solution);
                }
            }
        });
        addMouseListener(new MouseAdapter() {
            @Override
            public void mousePressed(MouseEvent e) {
                if (e.getButton() == MouseEvent.BUTTON2 || e.getButton() == MouseEvent.BUTTON3) {
                    LatitudeLongitudeTranslator translator = solutionPainter.getTranslator();
                    if (translator != null) {
                        double longitude = translator.translateXToLongitude(e.getX());
                        double latitude = translator.translateYToLatitude(e.getY());
                        VehicleRoutingWorldPanel.this.vehicleRoutingPanel.insertLocationAndCustomer(longitude, latitude);
                    }
                }
            }
        });
    }

    public void resetPanel(VehicleRoutingSolution solution) {
        solutionPainter.reset(solution, getSize(), this);
        repaint();
    }

    public void updatePanel(VehicleRoutingSolution solution) {
        resetPanel(solution);
    }

    @Override
    protected void paintComponent(Graphics g) {
        super.paintComponent(g);
        BufferedImage canvas = solutionPainter.getCanvas();
        if (canvas != null) {
            g.drawImage(canvas, 0, 0, this);
        }
    }

}