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GUIView.java
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GUIView.java
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package hw9;
import java.awt.BasicStroke;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.geom.Line2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.WindowConstants;
public class GUIView {
RouteWrapper w;
JPanel panel_right;
RouteWrapper getRouteWrapper() {
return w;
}
GUIView() {
w = new RouteWrapper();
JFrame frame = new JFrame("RPI Route Finder");
frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
frame.setLayout(new BorderLayout());
JLabel label_b1 = new JLabel("Start Building"); // Start label
final JComboBox<String> combo_b1 = combo_box(1); // Start combo box
JLabel label_b2 = new JLabel("End Building"); // End label
final JComboBox<String> combo_b2 = combo_box(2); // End combo box
JButton button_reset = new JButton("Reset"); // Reset button
button_reset.setActionCommand("reset");
button_reset.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
combo_b1.setSelectedIndex(0);
w.updatePoint(1,"Select a building");
combo_b2.setSelectedIndex(0);
w.updatePoint(2,"Select a building");
panel_right.repaint();
}
});
JPanel panel_left = new JPanel();
panel_left.setLayout(new BoxLayout(panel_left, BoxLayout.X_AXIS));
panel_left.add(label_b1);
panel_left.add(Box.createRigidArea(new Dimension(5,0)));
panel_left.add(combo_b1);
panel_left.add(Box.createRigidArea(new Dimension(5,0)));
panel_left.add(label_b2);
panel_left.add(Box.createRigidArea(new Dimension(5,0)));
panel_left.add(combo_b2);
panel_left.add(Box.createRigidArea(new Dimension(5,0)));
panel_left.add(button_reset);
panel_right = new MapImage();
panel_right.setPreferredSize(new Dimension(650,650));
frame.add(panel_left, BorderLayout.NORTH);
frame.add(panel_right, BorderLayout.CENTER);
frame.pack();
frame.setVisible(true);
}
JComboBox<String> combo_box(Integer order) {
JComboBox<String> cb = new JComboBox<String>(w.getBuildingOptions());
if (order.equals(1)) {
cb.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JComboBox cb = (JComboBox)e.getSource();
w.updatePoint(1, (String) (cb.getSelectedItem()));
panel_right.repaint();
}
});
} else {
cb.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JComboBox cb = (JComboBox)e.getSource();
w.updatePoint(2, (String) (cb.getSelectedItem()));
panel_right.repaint();
}
});
}
return cb;
}
}
class MapImage extends JPanel {
public void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2 = (Graphics2D) g;
BufferedImage img = null;
try {
img = ImageIO.read(new File("hw9/data/RPI_campus_map_2010_extra_nodes_edges.png"));
} catch (IOException e) {
System.err.println("File not found");
}
g2.drawImage(img,119,0,119+650,650,88,40,88+2000,40+2000,null);
g2.setStroke(new BasicStroke(3));
g2.setColor(Color.BLACK);
if (RouteWrapper.x_coords != null && RouteWrapper.y_coords != null) {
for (int i = 1; i < RouteWrapper.x_coords.size(); ++i) {
g2.draw(new Line2D.Double(scaleX(RouteWrapper.x_coords.get(i-1)),scaleY(RouteWrapper.y_coords.get(i-1)),
scaleX(RouteWrapper.x_coords.get(i)),scaleY(RouteWrapper.y_coords.get(i))));
}
}
if (RouteWrapper.b1 != null) {
g2.setColor(Color.BLACK);
g2.fillOval(scaleX(RouteWrapper.b1.x())-7,scaleY(RouteWrapper.b1.y())-7,14,14);
g2.setColor(Color.RED);
g2.fillOval(scaleX(RouteWrapper.b1.x())-4,scaleY(RouteWrapper.b1.y())-4,8,8);
}
if (RouteWrapper.b2 != null) {
g2.setColor(Color.BLACK);
g2.fillOval(scaleX(RouteWrapper.b2.x())-7,scaleY(RouteWrapper.b2.y())-7,14,14);
g2.setColor(Color.GREEN);
g2.fillOval(scaleX(RouteWrapper.b2.x())-4,scaleY(RouteWrapper.b2.y())-4,8,8);
}
}
static Integer scaleX(Integer x) {
return (int)(650*((float)x-88))/2000+119;
}
static Integer scaleY(Integer y) {
return (int)(650*((float)y-40))/2000;
}
}