Sun Mar 25, 2012 10:30 am
package Lab10;
import java.awt.*;
import java.awt.geom.Ellipse2D;
import java.awt.geom.Point2D;
import java.awt.geom.Point2D.Double;
import java.awt.geom.Rectangle2D;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Random;
public class Cloud implements Serializable
{
private static final long serialVersionUID = 1L;
//ArrayList of Points
static ArrayList<Point> cloud;
Shape circle;
static Random randomizer = new Random();
/**
* Default Constructor
*/
public Cloud()
{
//initializes vars
cloud = new ArrayList<Point>(100);
}
//adds the Point to the array list
/**
* @param point
*/
public static void add(Point point)
{
cloud.add(point);
}
//fills a small circle on the graphics context at each point in the arraylist
public static void draw(Graphics g)
{
Graphics2D ga = (Graphics2D)g;
for (Point point: cloud)
{
CloudPanel cp = new CloudPanel();
int height = cp.getHeight();
int width = cp.getWidth();
int x = randomizer.nextInt(width/2);
int y = randomizer.nextInt(height/2);
Shape circle = new Ellipse2D.Double(x, y, width, height);
cp.paint((Graphics) circle);
}
}
/**
* @return the pointList
*/
public static ArrayList<Point> getPointList()
{
return cloud;
}
}
/////////////////
cloudApp - displays a Cloud containing 100 random points centered on the panel.
//////////////////
package Lab10;
import java.awt.*;
import java.awt.image.*;
import java.io.*;
import java.util.Random;
import javax.imageio.ImageIO;
import javax.swing.*;
//import Lesson9.OtherApp.HousePanel;
public class CloudPanel extends JPanel
{
private static final long serialVersionUID = 1;
static Random randomizer = new Random();
CloudPanel()
{
Cloud myCloud = new Cloud();
repaint();
//paintComponent();
}
public boolean saveCloud()
{
try {
BufferedImage bi = ImageIO.read(new File("C:\\Libraries\\Documents\\lab10.bmp"));
BufferedImage biFiltered;
int w = bi.getWidth(null);
int h = bi.getHeight(null);
if (bi.getType() != BufferedImage.TYPE_INT_RGB)
{
BufferedImage bi2 = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
Graphics big = bi2.getGraphics();
big.drawImage(bi, 0, 0, null);
biFiltered = bi = bi2;
}
return true;
}
catch (IOException e)
{
System.out.println("Image could not be read");
System.exit(1);
return false;
}
}
public void loadCloud()
{
try
{
JFileChooser chooser = new JFileChooser("C:\\Libraries\\Documents\\lab10.bmp");
int returnVal= chooser.showOpenDialog(null);
File inputfile = chooser.getSelectedFile();
BufferedImage image = ImageIO.read(inputfile);
if (image != null)
{
CloudPanel.setBackgroundImage(image);
}
}
catch (IOException e1)
{
e1.printStackTrace();
}
}
public void newCloud()
{
int h = this.getHeight();
int w = this.getWidth();
int x = randomizer.nextInt(w/2);
int y = randomizer.nextInt(h/2);
Point point;
clear();
CloudPanel cloudpanel = new CloudPanel();
for(int k=0; k <100; k++)
{
point = new Point(x,y);
Cloud.add(point);
}
repaint();
}
public void clear()
{
Graphics g = getGraphics();
Dimension d = getSize();
Color c = getBackground();
g.setColor(c);
g.fillRect(0,0,d.width,d.height);
repaint();
}
public void paintComponent(Graphics g)
{
super.paintComponent(g);
Graphics2D g2 = (Graphics2D) g;
g2.setColor(Color.BLACK);
Cloud c = new Cloud();
Random generator = new Random();
int x = 0;
int y = 0;
for (int i = 0; i < 100; i++)
{
x = getWidth()/2 * generator.nextInt();
y = getHeight()/2 * generator.nextInt();
Cloud.add(new Point());
}
Cloud.draw(g2);
}
public static void setBackgroundImage(Image img)
{
// TODO Auto-generated method stub
}
}
CoudFrame:
package Lab10;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
//import java.awt.BorderLayout;
public class CloudFrame extends JFrame
{
private static final long serialVersionUID = 1;
private CloudPanel panel;
private JButton b_save;
private JButton b_new;
private JButton b_clear;
private JButton b_load;
public CloudFrame()
{
setTitle("Cloud");
setSize(600,350);
panel = new CloudPanel();
panel.setBackground(Color.BLUE);
b_new = new JButton("New Cloud");
b_save = new JButton("Save Cloud");
b_load = new JButton("Load Cloud");
b_clear = new JButton("Clear");
JPanel controlPanel = new JPanel();
controlPanel.setLayout(new GridLayout(1,1));
JPanel controlPanel2 = new JPanel();
controlPanel2.setLayout(new GridLayout(1,4));
controlPanel.add(panel);
controlPanel2.add(b_new);
controlPanel2.add(b_save);
controlPanel2.add(b_load);
controlPanel2.add(b_clear);
add(controlPanel,BorderLayout.CENTER);
add(controlPanel2,BorderLayout.SOUTH);
//o instantiate the class that implements the ActionListener interface
ActionListener NewListener = new NewButtonListener();
b_new.addActionListener(NewListener);
//o instantiate the class that implements the ActionListener interface
ActionListener SaveListener = new SaveButtonListener();
b_save.addActionListener(SaveListener);
//o instantiate the class that implements the ActionListener interface
ActionListener LoadListener = new LoadButtonListener();
b_load.addActionListener(LoadListener);
//o instantiate the class that implements the ActionListener interface
ActionListener ClearListener = new ClearButtonListener();
b_clear.addActionListener(ClearListener);
}
public static void main(String[] args)
{
JFrame myFrame = new CloudFrame();
myFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
myFrame.setVisible(true);
}
private class NewButtonListener implements ActionListener
{
//actionPerformed() method
public void actionPerformed(ActionEvent e)
{
if (e.getSource() == "New Cloud")
{
CloudPanel cp = new CloudPanel();
cp.newCloud();
}
else
{
return;
}
}
}
private class LoadButtonListener implements ActionListener
{
//actionPerformed() method
public void actionPerformed(ActionEvent e)
{
if (e.getSource() == "Load Cloud")
{
CloudPanel cp = new CloudPanel();
cp.loadCloud();
}
else
{
return;
}
}
}
private class ClearButtonListener implements ActionListener
{
//actionPerformed() method
public void actionPerformed(ActionEvent e)
{
if(e.getSource()=="Clear")
{
CloudPanel c = new CloudPanel();
c.clear();
}
else
{
return;
}
}
}
private class SaveButtonListener implements ActionListener
{
//actionPerformed() method
public void actionPerformed(ActionEvent e)
{
if(e.getSource()=="Save Cloud")
{
CloudPanel c = new CloudPanel();
c.saveCloud();
}
else
{
return;
}
}
}
}Sun Mar 25, 2012 11:56 am
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