programming-examples/java/Computer_Graphics/BufferedImageDrawer.java
2019-11-15 12:59:38 +01:00

53 lines
1.1 KiB
Java

import java.awt.*;
import java.awt.image.*;
/**
* A class for drawing a BufferedImage object. It can be used in
* connection with double buffering.
*
* @author Frank Klawonn
* Last change 27.05.2005
*/
public class BufferedImageDrawer extends Frame
{
//These image is drawn when the paint method is called.
public BufferedImage bi;
//This Graphics2D object can be used to draw on bi.
public Graphics2D g2dbi;
//The Graphics2D object used in the paint method.
private Graphics2D g2d;
/**
* Constructor
*/
public BufferedImageDrawer(BufferedImage buffIm, int width, int height)
{
bi = buffIm;
g2dbi = bi.createGraphics();
//Enables the closing of the window.
addWindowListener(new MyFinishWindow());
this.setTitle("Double-Buffering");
this.setSize(width,height);
this.setVisible(true);
}
public void paint(Graphics g)
{
update(g);
}
public void update(Graphics g)
{
g2d = (Graphics2D) g;
g2d.drawImage(bi,0,0,null);
}
}