portrequesteddialog.java

来自「基于SUN的javacomm20-win32 API中的例子SerialDemo」· Java 代码 · 共 54 行

package org.rien.rs;

import java.awt.*;
import java.awt.event.*;

public class PortRequestedDialog extends Dialog implements ActionListener {

	private MyComm parent;

	public PortRequestedDialog(MyComm parent) {
		super(parent, "端口已被占用！", true);
		this.parent = parent;

		String lineOne = "您选择的端口已被";
		String lineTwo = "另一个应用程序占用";
		String lineThree = "放弃选择这个端口吗?";
		Panel labelPanel = new Panel();
		labelPanel.setLayout(new GridLayout(3, 1));
		labelPanel.add(new Label(lineOne, Label.CENTER));
		labelPanel.add(new Label(lineTwo, Label.CENTER));
		labelPanel.add(new Label(lineThree, Label.CENTER));
		add(labelPanel, "Center");

		Panel buttonPanel = new Panel();
		Button yesButton = new Button("确认");
		yesButton.addActionListener(this);
		buttonPanel.add(yesButton);
		Button noButton = new Button("取消");
		noButton.addActionListener(this);
		buttonPanel.add(noButton);
		add(buttonPanel, "South");

		FontMetrics fm = getFontMetrics(getFont());
		int width = Math.max(fm.stringWidth(lineOne), Math.max(fm
				.stringWidth(lineTwo), fm.stringWidth(lineThree)));

		setSize(width + 40, 150);
		setLocation(parent.getLocationOnScreen().x + 30, parent
				.getLocationOnScreen().y + 30);
		setVisible(true);
	}

	public void actionPerformed(ActionEvent e) {
		String cmd = e.getActionCommand();

		if (cmd.equals("确认")) {
			parent.portClosed();
		}

		setVisible(false);
		dispose();
	}
}