ColorsBeanInfo.java Source code

Introduction

Here is the source code for ColorsBeanInfo.java

Source

    import java.beans.PropertyDescriptor;
    import java.beans.SimpleBeanInfo;

public class ColorsBeanInfo extends SimpleBeanInfo {
  public PropertyDescriptor[] getPropertyDescriptors() {
    try {
      PropertyDescriptor rectangular = new PropertyDescriptor("rectangular", Colors.class);
      PropertyDescriptor pd[] = { rectangular };
      return pd;
    } catch (Exception e) {
    }
    return null;
  }
}

    import java.awt.Color;
    import java.awt.Dimension;
    import java.awt.Graphics;
    import java.awt.event.MouseAdapter;
    import java.awt.event.MouseEvent;
    import java.io.Serializable;

    import javax.swing.JLabel;

    public class Colors extends JLabel implements Serializable {
        transient private Color color; // not persistent

        private boolean rectangular; // is persistent

        public Colors() {
            addMouseListener(new MouseAdapter() {
                public void mousePressed(MouseEvent me) {
                    change();
                }
            });
            rectangular = false;
            setSize(200, 100);
            change();
        }

        public boolean getRectangular() {
            return rectangular;
        }

        public void setRectangular(boolean flag) {
            this.rectangular = flag;
            repaint();
        }

        public void change() {
            color = randomColor();
            repaint();
        }

        private Color randomColor() {
            int r = (int) (255 * Math.random());
            int g = (int) (255 * Math.random());
            int b = (int) (255 * Math.random());
            return new Color(r, g, b);
        }

        public void paint(Graphics g) {
            Dimension d = getSize();
            int h = d.height;
            int w = d.width;
            g.setColor(color);
            if (rectangular) {
                g.fillRect(0, 0, w - 1, h - 1);
            } else {
                g.fillOval(0, 0, w - 1, h - 1);
            }
        }
    }