controlpanel.java

来自「dijkstra algorithm, need complile and bu」· Java 代码 · 共 104 行

package dijkstra;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.ButtonGroup;
import javax.swing.JButton;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import static dijkstra.Constants.DIJKSTRA_ALGORITHM;
import static dijkstra.Constants.BRUTEFORCE_ALGORITHM;

public class ControlPanel extends JPanel implements ActionListener {
	DijkstraApplet parent;
	private JButton stepBtn;

	public ControlPanel(DijkstraApplet myparent) {
		parent = myparent;

		String dijkstra = "Dijkstra";
		JRadioButton dijkstraButton = new JRadioButton(dijkstra);
		dijkstraButton.setActionCommand(dijkstra);
		dijkstraButton.setSelected(true);
		dijkstraButton.addActionListener(this);

		String bruteForce = "Brute Force";
		JRadioButton bruteForceButton = new JRadioButton(bruteForce);
		bruteForceButton.setActionCommand(bruteForce);
		bruteForceButton.addActionListener(this);

		// Group the radio buttons.
		ButtonGroup group = new ButtonGroup();
		group.add(dijkstraButton);
		group.add(bruteForceButton);

		JButton b1 = new JButton("run");
		b1.addActionListener(this);

		JButton b2 = new JButton("clear");
		b2.addActionListener(this);

		stepBtn = new JButton("step");
		stepBtn.addActionListener(this);

		JButton b4 = new JButton("reset");
		b4.addActionListener(this);

		JButton b5 = new JButton("example");
		b5.addActionListener(this);

		JButton b6 = new JButton("exit");
		b6.addActionListener(this);

		add(dijkstraButton);
		add(bruteForceButton);
		add(b1);
		add(b2);
		add(stepBtn);
		add(b4);
		add(b5);
		add(b6);
	}

	/**
	 * {@inheritDoc}
	 */
	public void actionPerformed(ActionEvent e) {
		String action = e.getActionCommand();

		if (action.equals("step")) {
			stepBtn.setText("next step");
			parent.getGraphCanvas().stepAlgorithm();
		} else if (action.equals("next step")) {
			parent.getGraphCanvas().nextstep();
		} else if (action.equals("reset")) {
			parent.getGraphCanvas().reset();
			stepBtn.setEnabled(true);
			stepBtn.setText("step");
		} else if (action.equals("clear")) {
			parent.getGraphCanvas().clear();
			stepBtn.setEnabled(true);
			stepBtn.setText("step");
		} else if (action.equals("Dijkstra")) {
			parent.getGraphCanvas().setAlgprithm(DIJKSTRA_ALGORITHM);
			parent.getGraphCanvas().reset();
			stepBtn.setText("step");
		} else if (action.equals("Brute Force")) {
			parent.getGraphCanvas().setAlgprithm(BRUTEFORCE_ALGORITHM);
			parent.getGraphCanvas().reset();
			stepBtn.setText("step");
		} else if (action.equals("run")) {
			parent.getGraphCanvas().runAlgorithm();
		} else if (action.equals("example")) {
			parent.getGraphCanvas().drawExample();
		} else if (action.equals("exit")) {
			System.exit(0);
		}
	}

	public JButton getStepBtn() {
		return stepBtn;
	}
}