Javaswing also stunning two: ring-ring Phase sets

I. Preamble

There has been a long-standing debate about "Java does not do well on the desktop." Although swing and java2d have more than 10 years of history, there are many open source swing components such as Jide, Jgoodies, Twaver, but it is still not easy to use Java as a desktop program. This "Java also stunning" series of articles, is to pass some simple and vivid examples, and everyone together to understand Java, explore swing. In fact, you just need a little more creativity, a little more patience, your Java program can also be "stunning"! This article will take you to the amazing journey of Java.

Second, three-dimensional casing effect

In network communication, the "bearer" relationship between protocols is often expressed. For example, an IP protocol can be hosted on SDH or hosted on an ATM protocol as a high-level protocol. Similarly, IP as a protocol can also host more high-level protocols, such as Voice over IP, and even telecommunications everything over IP concept. In performance, the use of nested three-dimensional casing to express the agreement of the "load" is more appropriate (pictured below).

The actual implementation is simple, the main code is as follows:

import java.awt.*;


import java.awt.geom.*;


import javax.swing.*;





import twaver.*;





public class Piplecomponent extends JComponent {





public void Paint (Graphics g) {


graphics2d g2d = (graphics2d) g;


G2d.setrenderinghint (renderinghints.key_antialiasing, renderinghints.value_antialias_on);


Shape parenthollowshape=createpiple (G2d,100,100,200,200,twaverutil.getrandomcolor (), NULL);


createpiple (G2d,120,120,280,40,twaverutil.getrandomcolor (), parenthollowshape);


createpiple (G2d,130,170,310,40,twaverutil.getrandomcolor (), parenthollowshape);


createpiple (G2d,140,220,290,50,twaverutil.getrandomcolor (), parenthollowshape);


createpiple (G2d,130,190,300,30,twaverutil.getrandomcolor (), parenthollowshape);


　　　　 }





private Shape createpiple (graphics2d g2d,int x, int y, int width, int height,color color,shape PE) {


if (parenthollowshape!=null) {


Rectangle bounds=parenthollowshape.getbounds ();


Rectangle rightclip=new Rectangle (bounds.x+bounds.width/2,bounds.y,3000,bounds.height);


Area clip=new Area (parenthollowshape);


Clip.add (New Area (Rightclip));


g2d.setclip (clip);


　　　　　　　　 }


int circlewidth = HEIGHT/3;


gradientpaint paint = new Gradientpaint (x,


y,


Color.brighter (),


x,


y + (int) (height * 0.65),


Color.darker (),


true);


g2d.setpaint (paint);


Ellipse2d.double leftcircle = new Ellipse2d.double (X-CIRCLEWIDTH/2, y, circlewidth, height);


ellipse2d.double rightcircle = new Ellipse2d.double (x + width-circlewidth/2, y, circlewidth, height);





int thickness=4;


ellipse2d.double righthollowcircle = new Ellipse2d.double (Rightcircle.getx () +thickness,


rightcircle.gety () +thickness,


rightcircle.getwidth ()-thickness*2,


rightcircle.getheight ()-thickness*2);





Rectangle rect = new Rectangle (x, y, width, height);


Area area = new Area (leftcircle);


Area.add (New Area (rect));


Area.subtract (New Area (rightcircle));


G2d.fill (area);


G2d.setcolor (Color.darker ());


G2d.fill (rightcircle);





paint = new Gradientpaint (x,


y,


Color.darkgray,


x,


y + (int) (height * 0.4),


Color.lightgray,


true);





g2d.setpaint (paint);


G2d.fill (righthollowcircle);





g2d.setclip (NULL);





return righthollowcircle;


　　　　 }





public static void Main (string[] args) {


JFrame frame = new JFrame ();


frame.setdefaultcloseoperation (jframe.exit_on_close);


frame.setsize (800, 600);


Frame.add (New Piplecomponent ());


frame.setvisible (TRUE);


　　　　 }


}