Composite Demo : AlphaComposite « 2D Graphics « Java Tutorial

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Java Tutorial » 2D Graphics » AlphaComposite 
16. 46. 1. Composite Demo
import java.awt.AlphaComposite;
import java.awt.Canvas;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Toolkit;

import javax.swing.JFrame;

public class MainClass extends JFrame {
  public static void main(String args[]) {
    MainClass app = new MainClass();
  }

  public MainClass() {
    super("Draw2D");
    add("Center"new MyCanvas());

    setSize(400400);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setVisible(true);
  }

  class MyCanvas extends Canvas {
    public void paint(Graphics graphics) {
      Graphics2D g = (Graphics2Dgraphics;
      float alpha = 0.5f;
      AlphaComposite composite = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, alpha);
      g.setComposite(composite);
      Toolkit toolkit = Toolkit.getDefaultToolkit();
      Image image0 = toolkit.getImage("image0.gif");
      Image image1 = toolkit.getImage("image1.gif");
      g.drawImage(image0, 200100this);
      g.drawImage(image1, 100150this);
    }
  }
}
16. 46. AlphaComposite
16. 46. 1. Composite Demo
16. 46. 2. Alpha Composite with BufferedImageAlpha Composite with BufferedImage
16. 46. 3. AlphaComposite.SRCAlphaComposite.SRC
16. 46. 4. AlphaComposite.SRC_OVERAlphaComposite.SRC_OVER
16. 46. 5. AlphaComposite.DST_OVERAlphaComposite.DST_OVER
16. 46. 6. AlphaComposite.SRC_INAlphaComposite.SRC_IN
16. 46. 7. AlphaComposite.DST_INAlphaComposite.DST_IN
16. 46. 8. AlphaComposite.SRC_OUTAlphaComposite.SRC_OUT
16. 46. 9. AlphaComposite.DST_OUTAlphaComposite.DST_OUT
16. 46. 10. Draw ten rectangles with different levels of transparency
16. 46. 11. Compositing is the combining of elements from separate sources into single images
16. 46. 12. Composition technique in this animation.
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