pnlscrollimage.java

这是我在北大青鸟的第一学期的一个毕业设计

import java.awt.BorderLayout;

import javax.swing.JPanel;
import javax.swing.JLabel;
import java.awt.*;
import javax.swing.ImageIcon;
import javax.swing.border.TitledBorder;

public class pnlScrollImage extends JPanel {
    public pnlScrollImage() {
        try {
            jbInit();
            this.ScrollImage();
        } catch (Exception exception) {
            exception.printStackTrace();
        }
    }

    private void jbInit() throws Exception {
        this.setLayout(null);
        lblImg1.setBorder(titledBorder1);
        lblImg1.setBounds(new Rectangle(100, 10, 150, 90));
        lblImg2.setBorder(titledBorder2);
        lblImg2.setBounds(new Rectangle(100, 100, 150, 90));
        this.add(lblImg1);
        this.add(lblImg2);
    }

    JLabel lblImg1 = new JLabel(new ImageIcon("toolbtn.gif"));
    JLabel lblImg2 = new JLabel(new ImageIcon("toolbtn.gif"));
    TitledBorder titledBorder1 = new TitledBorder("");
    TitledBorder titledBorder2 = new TitledBorder("");

    public void ScrollImage()
    {
        if(lblImg1.getY()>-100 || lblImg2.getY()>-100)
        {
            for (int i = 10, j = 100; i >= -100 || j >= -100; i--, j--) {
                lblImg1.setLocation(100, i);
                lblImg2.setLocation(100, j);
            }
        }
        else
        {
            for (int i = 100, j = 190; i <10 || j <100; i++,j++)
            {
                lblImg1.setLocation(100, i);
                lblImg2.setLocation(100, j);
            }
        }
    }
}