package cn.itcast_06;

import java.awt.Button;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Frame;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.FocusAdapter;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

public class FrameDemo {
	public static void main(String[] args) {
		// 建立窗體物件
		final Frame f = new Frame("更改背景顏色");
		// 設定屬性及佈局
		f.setBounds(400, 200, 400, 300);
		f.setLayout(new FlowLayout());

		// 建立按鈕物件
		Button redButton = new Button("紅色");
		Button greenButton = new Button("綠色");
		Button blueButton = new Button("藍色");
		Button whiteButton = new Button("復原");

		// 新增按鈕
		f.add(redButton);
		f.add(greenButton);
		f.add(blueButton);
		f.add(whiteButton);

		// 對按鈕新增動作事件
		// redButton.addActionListener(new ActionListener() {
		//
		// @Override
		// public void actionPerformed(ActionEvent e) {
		// f.setBackground(Color.RED);
		// }
		// });

		// 對按鈕新增滑鼠點選事件
		// redButton.addMouseListener(new MouseAdapter() {
		// @Override
		// public void mouseClicked(MouseEvent e) {
		// f.setBackground(Color.RED);
		// }
		// });

		// 對按鈕新增滑鼠的進入事件
		redButton.addMouseListener(new MouseAdapter() {
			@Override
			public void mouseEntered(MouseEvent e) {
				f.setBackground(Color.RED);
			}

			// @Override
			// public void mouseExited(MouseEvent e) {
			// f.setBackground(Color.WHITE);
			// }
		});
		greenButton.addMouseListener(new MouseAdapter() {
			@Override
			public void mouseEntered(MouseEvent e) {
				f.setBackground(Color.GREEN);
			}

			// @Override
			// public void mouseExited(MouseEvent e) {
			// f.setBackground(Color.WHITE);
			// }
		});
		blueButton.addMouseListener(new MouseAdapter() {
			@Override
			public void mouseEntered(MouseEvent e) {
				f.setBackground(Color.BLUE);
			}

			// @Override
			// public void mouseExited(MouseEvent e) {
			// f.setBackground(Color.WHITE);
			// }
		});
		whiteButton.addMouseListener(new MouseAdapter() {
			@Override
			public void mouseEntered(MouseEvent e) {
				f.setBackground(Color.WHITE);
			}

			// @Override
			// public void mouseExited(MouseEvent e) {
			// f.setBackground(Color.WHITE);
			// }
		});

		// 設定關閉窗體
		f.addWindowListener(new WindowAdapter() {
			@Override
			public void windowClosing(WindowEvent e) {
				System.exit(0);
			}
		});

		// 設定窗體可見
		f.setVisible(true);
	}
}