Home Java Example Java Swing Graphics2D Another Example of Gradient Paint

Another Example of Gradient Paint
Posted on: October 11, 2008 at 12:00 AM

This section shows you the gradient Paint on rounded corner rectangle. A gradient is like a colored strip.

Another Example of Gradient Paint

This section shows you the gradient Paint on rounded corner rectangle. A gradient is like a colored strip. It is created by specifying a color at one point and another color at another point. Then the colors will starts changes gradually from one to the other along a straight line between the two points.

To use a Gradient paint, you must have a shape and two end points. The class RoundRectangle2D defines a rectangle with rounded corners. The class GradientPaint allows you to set up a gradient filled shape with a linear color gradient pattern.

Here is the code of GradientPaintRectangle.java


import java.awt.*;

import javax.swing.*;

import java.awt.geom.*;

import java.awt.event.*;

      

public class GradientPaintRectangle extends JApplet {

  public void init() {

  setBackground(Color.gray);

 }

  public void paint(Graphics g) {

  Graphics2D g2d = (Graphics2D) g;

  GradientPaint gp = new GradientPaint(5, 5, Color.cyan, 220,

          220,Color.red);

  g2d.setPaint(gp);

  g2d.fill(new RoundRectangle2D.Double(5, 5, 220, 220, 10, 10));

  g2d.setPaint(Color.black);

 }

 public static void main(String s[]) {

  JFrame frame = new JFrame("Paint Round Rectangle");

  frame.addWindowListener(new WindowAdapter() {

  public void windowClosing(WindowEvent event) {

  System.exit(0);

  }

  });

  JApplet applet = new GradientPaintRectangle();

  frame.getContentPane().add("Center", applet);

  applet.init();

  frame.setSize(new Dimension(300, 270));

  frame.show();

  }

}

Output will be displayed as:

Download Source Code

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