BE-Graph/src/main/org/insa/graphics/ShortestPathSolutionPanel.java
2018-03-01 19:51:37 +01:00

208 lines
7.2 KiB
Java

package org.insa.graphics;
import java.awt.Color;
import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedOutputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.IdentityHashMap;
import java.util.Map;
import javax.swing.BorderFactory;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFileChooser;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.border.CompoundBorder;
import javax.swing.border.EmptyBorder;
import org.insa.algo.shortestpath.ShortestPathData;
import org.insa.algo.shortestpath.ShortestPathData.Mode;
import org.insa.algo.shortestpath.ShortestPathSolution;
import org.insa.graph.Graph;
import org.insa.graph.io.BinaryPathWriter;
import org.insa.graphics.drawing.Drawing;
import org.insa.graphics.drawing.overlays.PathOverlay;
public class ShortestPathSolutionPanel extends JPanel
implements DrawingChangeListener, GraphChangeListener {
/**
*
*/
private static final long serialVersionUID = 1L;
// Parent components
Component parent;
// Solution
private Drawing drawing;
// Solution selector
JComboBox<ShortestPathSolution> solutionSelect;
// Map solution -> panel
Map<ShortestPathSolution, JPanel> solutionToPanel = new IdentityHashMap<>();
public ShortestPathSolutionPanel(Component parent, Drawing drawing) {
super();
setLayout(new BoxLayout(this, BoxLayout.PAGE_AXIS));
setBorder(new CompoundBorder(BorderFactory.createMatteBorder(1, 0, 0, 0, Color.BLACK),
new EmptyBorder(15, 15, 15, 15)));
this.parent = parent;
this.drawing = drawing;
// TODO: Create select + Block for JPanel
solutionSelect = new JComboBox<>(new ShortestPathSolution[0]);
solutionSelect.setBackground(Color.WHITE);
solutionSelect.setAlignmentX(Component.LEFT_ALIGNMENT);
add(solutionSelect);
JPanel bottomPanel = new JPanel();
bottomPanel.setAlignmentX(Component.LEFT_ALIGNMENT);
add(bottomPanel);
solutionSelect.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
@SuppressWarnings("unchecked")
JComboBox<ShortestPathSolution> combo = (JComboBox<ShortestPathSolution>) e
.getSource();
ShortestPathSolution solution = (ShortestPathSolution) combo.getSelectedItem();
bottomPanel.removeAll();
bottomPanel.add(solutionToPanel.get(solution));
}
});
}
public void addSolution(ShortestPathSolution solution) {
// add info panel
JPanel panel = new JPanel();
panel.setLayout(new BoxLayout(panel, BoxLayout.PAGE_AXIS));
panel.add(createInformationLabel(solution));
if (solution != null && solution.isFeasible()) {
panel.add(Box.createVerticalStrut(8));
panel.add(createPathPanel(solution));
}
solutionToPanel.put(solution, panel);
solutionSelect.addItem(solution);
solutionSelect.setSelectedItem(solution);
}
protected JLabel createInformationLabel(ShortestPathSolution solution) {
ShortestPathData data = (ShortestPathData) solution.getInstance();
String info = null;
if (solution == null || !solution.isFeasible()) {
info = String.format("Shortest path: No path found from node #%d to node #%d.",
data.getOrigin().getId(), data.getDestination().getId());
}
else {
info = String.format("Shortest path: Found a path from node #%d to node #%d",
data.getOrigin().getId(), data.getDestination().getId());
if (data.getMode() == Mode.LENGTH) {
info = String.format("%s, %.2f kilometers.", info,
(solution.getPath().getLength() / 1000.0));
}
else {
info = String.format("%s, %.2f minutes.", info,
(solution.getPath().getMinimumTravelTime() / 60.0));
}
}
JLabel label = new JLabel(info);
label.setAlignmentX(Component.LEFT_ALIGNMENT);
label.setHorizontalAlignment(JLabel.LEFT);
return label;
}
protected JPanel createPathPanel(ShortestPathSolution solution) {
ShortestPathData data = (ShortestPathData) solution.getInstance();
final PathOverlay overlay = drawing.drawPath(solution.getPath());
JButton clearButton = new JButton("Hide");
clearButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if (overlay.isVisible()) {
overlay.setVisible(false);
clearButton.setText("Show");
}
else {
overlay.setVisible(true);
clearButton.setText("Hide");
}
}
});
JButton saveButton = new JButton("Save");
saveButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
String filepath = System.getProperty("user.dir");
filepath += File.separator
+ String.format("path_%#x_%d_%d.path", data.getGraph().getMapId(),
data.getOrigin().getId(), data.getDestination().getId());
JFileChooser fileChooser = new JFileChooser();
fileChooser.setSelectedFile(new File(filepath));
fileChooser.setApproveButtonText("Save");
if (fileChooser.showOpenDialog(parent) == JFileChooser.APPROVE_OPTION) {
File file = fileChooser.getSelectedFile();
try {
BinaryPathWriter writer = new BinaryPathWriter(new DataOutputStream(
new BufferedOutputStream(new FileOutputStream(file))));
writer.writePath(solution.getPath());
}
catch (IOException e1) {
JOptionPane.showMessageDialog(parent,
"Unable to write path to the selected file.");
e1.printStackTrace();
}
}
}
});
JPanel buttonPanel = new JPanel();
buttonPanel.setLayout(new BoxLayout(buttonPanel, BoxLayout.LINE_AXIS));
buttonPanel.add(Box.createHorizontalGlue());
buttonPanel.add(clearButton);
buttonPanel.add(saveButton);
buttonPanel.setAlignmentX(Component.LEFT_ALIGNMENT);
return buttonPanel;
}
@Override
public void newGraphLoaded(Graph graph) {
// TODO:
}
@Override
public void onDrawingLoaded(Drawing oldDrawing, Drawing newDrawing) {
if (newDrawing != drawing) {
drawing = newDrawing;
}
}
@Override
public void onRedrawRequest() {
// TODO:
}
}