picturepanel.java

基于mvc的java进销存系统

/*
 * PicturePanel.java
 *
 * Created on 2007年5月7日, 上午10:49
 */

package been;

import java.awt.Graphics;
import java.awt.Image;
import java.awt.MediaTracker;
import java.awt.Toolkit;
import java.net.URL;

/**
 *
 * @author  下雪天
 */
public class PicturePanel extends javax.swing.JPanel {
    
    /** Creates new form PicturePanel */
     private Image image;
    public PicturePanel() {
        initComponents();
    }
     public void setImage(URL imagePath){
         image=Toolkit.getDefaultToolkit().getImage(imagePath);
         MediaTracker tracker=new MediaTracker(this);
         tracker.addImage(image,0);
         try{
             tracker.waitForID(0);
         }catch(InterruptedException exception){
             exception.printStackTrace();
         }        
     } 
    public void paintComponent(Graphics g){
         super.paintComponent(g);
         
         if(image == null) return;
         //int imageWidth = image.getWidth(this);
         //int imageHeight = image.getHeight(this);
         g.drawImage(image,0,0,null);
     }
    
    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc=" Generated Code ">//GEN-BEGIN:initComponents
    private void initComponents() {
        
        org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(this);
        this.setLayout(layout);
        layout.setHorizontalGroup(
                layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                .add(0, 400, Short.MAX_VALUE)
                );
        layout.setVerticalGroup(
                layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                .add(0, 300, Short.MAX_VALUE)
                );
    }
    // </editor-fold>//GEN-END:initComponents
    
    
    // Variables declaration - do not modify//GEN-BEGIN:variables
    // End of variables declaration//GEN-END:variables
    
}