scrollingimage.java

来自「java编程开发技巧与实例的编译测试通过的所有例程」· Java 代码 · 共 61 行

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class ScrollingImage extends JFrame implements ActionListener
{
	private JLabel imageLabel	=	new JLabel();
	private JButton quit		=	new JButton("Quit");
	//private String fileName		=	"scenery999.jpg";
	private String fileName		=	"dsc04120_mthumb.jpg";
	public ScrollingImage()
	{
		super("Scrolling Image");
		ImageIcon icon	=	new ImageIcon(fileName);
		imageLabel.setIcon(icon);
		JScrollPane scrollingLabel	=	new JScrollPane(imageLabel);
		scrollingLabel.setPreferredSize(new Dimension(670, 300));
		JPanel info	=	new JPanel(new GridLayout(3, 1));
		info.add(new JLabel("Image Name: " + fileName));
		info.add(new JLabel("Image Width: " + icon.getIconWidth()));
		info.add(new JLabel("Image Height: " + icon.getIconHeight()));
		JSplitPane split	=	new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, scrollingLabel, info);
		split.setDividerSize(10);
		split.setOneTouchExpandable(true);
		split.setContinuousLayout(true);
		//JTabbedPane tabs	=	new JTabbedPane();
		//tabs.addTab("Image", scrollingLabel);
		//tabs.addTab("Info", info);
		JPanel buttons	=	new JPanel(new FlowLayout());
		buttons.add(quit);
		
		getContentPane().add("Center", split);
		//getContentPane().add("Center", scrollingLabel);
		getContentPane().add("South", buttons);
		quit.addActionListener(this);
		//setLocationRelativeTo(null);
		validate();
		pack();
		setVisible(true);
	}
	public void actionPerformed(ActionEvent ae)
	{
		System.exit(0);
	}
	public static void main(String args[])
	{
		try
		{
			String lf_wind	=	"com.sun.java.swing.plaf.windows.WindowsLookAndFeel";
			String lf_unix	=	"com.sun.java.swing.plaf.motif.MotifLookAndFeel";
			String lf_java	=	"javax.swing.plaf.metal.MetalLookAndFeel";
			UIManager.setLookAndFeel(lf_java);
		}
		catch	(Exception e)
		{
			System.err.println("Exception: " + e);
		}
		ScrollingImage si	=	new ScrollingImage();
	}
}