Add shortest path panel.
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Holt59
271
src/main/org/insa/graphics/ShortestPathPanel.java
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271
src/main/org/insa/graphics/ShortestPathPanel.java
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package org.insa.graphics;
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import java.awt.BorderLayout;
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import java.awt.Color;
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import java.awt.Component;
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import java.awt.Font;
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import java.awt.event.ActionEvent;
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import java.awt.event.ActionListener;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import javax.swing.Box;
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import javax.swing.BoxLayout;
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import javax.swing.ButtonGroup;
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import javax.swing.JButton;
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import javax.swing.JComboBox;
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import javax.swing.JComponent;
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import javax.swing.JFrame;
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import javax.swing.JLabel;
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import javax.swing.JPanel;
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import javax.swing.JRadioButton;
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import javax.swing.JSplitPane;
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import javax.swing.border.EmptyBorder;
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import org.insa.algo.shortestpath.AStarAlgorithm;
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import org.insa.algo.shortestpath.BellmanFordAlgorithm;
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import org.insa.algo.shortestpath.DijkstraAlgorithm;
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import org.insa.algo.shortestpath.ShortestPathAlgorithm;
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import org.insa.algo.shortestpath.ShortestPathData.Mode;
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import org.insa.graph.Graph;
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import org.insa.graph.Node;
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import org.insa.graph.io.BinaryGraphReaderV2;
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import org.insa.graph.io.GraphReader;
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import org.insa.graph.io.Openfile;
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import org.insa.graphics.NodesInputPanel.InputChangedEvent;
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import org.insa.graphics.drawing.BasicDrawing;
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import org.insa.graphics.drawing.Drawing;
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public class ShortestPathPanel extends JPanel {
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/**
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*
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*/
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private static final long serialVersionUID = 406148710808045035L;
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public class StartActionEvent extends ActionEvent {
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/**
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*
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*/
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private static final long serialVersionUID = 4090710269781229078L;
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protected static final String START_EVENT_COMMAND = "allInputFilled";
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protected static final int START_EVENT_ID = 0x1;
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private final Node origin, destination;
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private final Mode mode;
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private final Class<? extends ShortestPathAlgorithm> algoClass;
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public StartActionEvent(Class<? extends ShortestPathAlgorithm> algoClass, Node origin, Node destination,
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Mode mode) {
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super(ShortestPathPanel.this, START_EVENT_ID, START_EVENT_COMMAND);
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this.origin = origin;
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this.destination = destination;
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this.mode = mode;
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this.algoClass = algoClass;
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}
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/**
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* @return Origin node associated with this event.
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*/
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public Node getOrigin() {
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return this.origin;
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}
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/**
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* @return Destination node associated with this event.
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*/
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public Node getDestination() {
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return this.destination;
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}
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/**
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* @return Mode associated with this event.
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*/
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public Mode getMode() {
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return this.mode;
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}
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/**
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* @return Algorithm class associated with this event.
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*/
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public Class<? extends ShortestPathAlgorithm> getAlgorithmClass() {
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return this.algoClass;
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}
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};
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// Map between algorithm names and class, see end of this class for
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// initialization.
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private static Map<String, Class<? extends ShortestPathAlgorithm>> SHORTEST_PATH_ALGORITHMS = new HashMap<>();
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// Input panels for node.
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private NodesInputPanel nodesInputPanel;
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// Component that can be enabled/disabled.
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private ArrayList<JComponent> components = new ArrayList<>();
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// Start listeners
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List<ActionListener> startActionListeners = new ArrayList<>();
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public ShortestPathPanel(Drawing drawing, Graph graph) {
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super();
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setLayout(new BoxLayout(this, BoxLayout.PAGE_AXIS));
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setBorder(new EmptyBorder(15, 15, 15, 15));
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// Set title.
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JLabel titleLabel = new JLabel("Shortest-Path");
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titleLabel.setBackground(Color.RED);
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titleLabel.setHorizontalAlignment(JLabel.LEFT);
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titleLabel.setAlignmentX(Component.LEFT_ALIGNMENT);
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Font font = titleLabel.getFont();
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font = font.deriveFont(Font.BOLD, 18);
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titleLabel.setFont(font);
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add(titleLabel);
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add(Box.createVerticalStrut(8));
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// Add algorithm selection
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JComboBox<String> algoSelect = new JComboBox<>(SHORTEST_PATH_ALGORITHMS.keySet().toArray(new String[0]));
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algoSelect.setBackground(Color.WHITE);
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algoSelect.setAlignmentX(Component.LEFT_ALIGNMENT);
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add(algoSelect);
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components.add(algoSelect);
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// Add inputs for node.
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this.nodesInputPanel = new NodesInputPanel(drawing, graph);
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this.nodesInputPanel.setAlignmentX(Component.LEFT_ALIGNMENT);
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nodesInputPanel.addTextField("Origin: ", new Color(57, 172, 115));
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nodesInputPanel.addTextField("Destination: ", new Color(255, 77, 77));
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add(this.nodesInputPanel);
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components.add(this.nodesInputPanel);
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// Add mode selection
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JPanel modePanel = new JPanel();
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modePanel.setAlignmentX(Component.LEFT_ALIGNMENT);
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modePanel.setLayout(new BoxLayout(modePanel, BoxLayout.LINE_AXIS));
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JRadioButton lengthModeButton = new JRadioButton("Length");
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lengthModeButton.setSelected(true);
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JRadioButton timeModeButton = new JRadioButton("Time");
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ButtonGroup group = new ButtonGroup();
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group.add(lengthModeButton);
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group.add(timeModeButton);
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modePanel.add(Box.createHorizontalGlue());
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modePanel.add(lengthModeButton);
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modePanel.add(Box.createHorizontalGlue());
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modePanel.add(timeModeButton);
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modePanel.add(Box.createHorizontalGlue());
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add(modePanel);
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components.add(timeModeButton);
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components.add(lengthModeButton);
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// Bottom panel
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JPanel bottomPanel = new JPanel();
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bottomPanel.setLayout(new BoxLayout(bottomPanel, BoxLayout.LINE_AXIS));
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JButton startAlgoButton = new JButton("Start");
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startAlgoButton.setEnabled(false);
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startAlgoButton.addActionListener(new ActionListener() {
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@Override
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public void actionPerformed(ActionEvent e) {
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List<Node> nodes = nodesInputPanel.getNodeForInputs();
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Node origin = nodes.get(0), destination = nodes.get(1);
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Mode mode = lengthModeButton.isSelected() ? Mode.LENGTH : Mode.TIME;
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for (ActionListener lis: startActionListeners) {
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lis.actionPerformed(new StartActionEvent(SHORTEST_PATH_ALGORITHMS.get(algoSelect.getSelectedItem()),
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origin, destination, mode));
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}
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}
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});
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JButton hideButton = new JButton("Hide");
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hideButton.addActionListener(new ActionListener() {
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@Override
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public void actionPerformed(ActionEvent e) {
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nodesInputPanel.setEnabled(false);
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setVisible(false);
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}
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});
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bottomPanel.add(startAlgoButton);
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bottomPanel.add(Box.createHorizontalGlue());
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bottomPanel.add(hideButton);
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components.add(startAlgoButton);
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components.add(hideButton);
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bottomPanel.setAlignmentX(Component.LEFT_ALIGNMENT);
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add(Box.createVerticalStrut(8));
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add(bottomPanel);
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nodesInputPanel.addInputChangedListener(new ActionListener() {
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@Override
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public void actionPerformed(ActionEvent e) {
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InputChangedEvent evt = (InputChangedEvent) e;
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boolean allNotNull = true;
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for (Node node: evt.getNodes()) {
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if (node == null) {
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allNotNull = false;
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}
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}
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startAlgoButton.setEnabled(allNotNull);
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}
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});
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}
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@Override
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public void setEnabled(boolean enabled) {
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super.setEnabled(enabled);
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nodesInputPanel.setEnabled(enabled);
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for (JComponent component: components) {
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component.setEnabled(enabled);
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}
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}
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/**
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* Add a new start action listener to this class.
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*
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* @param listener
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*/
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public void addStartActionListener(ActionListener listener) {
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this.startActionListeners.add(listener);
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}
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static {
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SHORTEST_PATH_ALGORITHMS.put("Bellman-Ford", BellmanFordAlgorithm.class);
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SHORTEST_PATH_ALGORITHMS.put("Dijkstra", DijkstraAlgorithm.class);
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SHORTEST_PATH_ALGORITHMS.put("A*", AStarAlgorithm.class);
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}
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public static void main(String[] args) throws IOException {
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String nomcarte = "../BE_Graphe_Maps/morbihan3.mapgr";
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GraphReader reader = new BinaryGraphReaderV2(Openfile.open(nomcarte));
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Graph graph = reader.read();
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JFrame frame = new JFrame();
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frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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frame.setLayout(new BorderLayout());
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JSplitPane p = new JSplitPane();
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BasicDrawing drawing = new BasicDrawing();
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JPanel pane = new ShortestPathPanel(drawing, graph);
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p.setLeftComponent(drawing);
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p.setRightComponent(pane);
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p.setResizeWeight(0.8);
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frame.add(p, BorderLayout.CENTER);
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frame.show();
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frame.setSize(800, 600);
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// pane.setSize(new Dimension(400, 0));
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drawing.drawGraph(graph);
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}
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}
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