Program To Create a Snapshop System in Java Language Assignment Solution

Instructions

Objective

Write a java homework to create snapshop system in java language.

Requirements and Specifications

Programming Project - SnapShop

For this program, you are provided several .java source files. The first step is to create a Project in Eclipse and import those source files into the project. When you get the source code compiled and the application running, it should look and work like the provided “runnable .jar file”. You run the runnable .jar file by double-clicking on the java icon (the icon representing a hot cup of coffee).

What to submit: For maximum credit, you will have to modify some of the files you started with, and create some new java files.

• Submit any new files you’ve created, and any .java files you have modified.
• A runnable .jar file of your application. In Eclipse, right click on your Project name in Package Explorer and select Export -> Java -> Runnable JAR file.

You may have a number of files to send, you can either zip them into a single file, or attach them inpidually to a message to me.

Source Code

import java.awt.BorderLayout; import java.awt.Dimension; import java.awt.FlowLayout; import java.awt.Frame; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.GridLayout; import java.awt.Image; import java.awt.Label; import java.awt.MediaTracker; import java.awt.Point; import java.awt.Toolkit; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.image.BufferedImage; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JTextArea; import javax.swing.SwingUtilities; import javax.swing.UIManager; /** * A PhotoShop like application for filtering images This class is COMPLETE. * Don't change it. */ public class SnapShop extends JFrame { FileLoader fl; FilterButtons fb; ImagePanel ip; RenderingDialog rd; /** * Constructor for objects of class SnapShop */ public SnapShop() { super("CSC 142 - SnapShop"); // Take the default look of the computer (windows on a windows machine, // etc...) try { UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); SwingUtilities.updateComponentTreeUI(this); } catch (Exception e) { // crash if it didn't work throw new RuntimeException( "Could not set the default look and feel"); } this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); ip = new ImagePanel(this); this.getContentPane().add(ip, BorderLayout.CENTER); fl = new FileLoader(this); this.getContentPane().add(fl, BorderLayout.NORTH); fb = new FilterButtons(this); this.getContentPane().add(fb, BorderLayout.WEST); rd = new RenderingDialog(this); SnapShopConfiguration.configure(this); this.pack(); this.setVisible(true); } private class FileLoader extends JPanel implements ActionListener { private JTextArea filenameBox; private ImagePanel ip; private SnapShop s; public FileLoader(SnapShop s) { super(new FlowLayout()); this.s = s; this.ip = s.getImagePanel(); add(new JLabel("Enter file name: ")); filenameBox = new JTextArea(1, 50); add(filenameBox); JButton loadButton = new JButton("Load"); loadButton.addActionListener(this); add(loadButton); } public void actionPerformed(ActionEvent e) { String filename = filenameBox.getText().trim(); try { ip.loadImage(filename); } catch (Exception ex) { JOptionPane.showMessageDialog(s, "Could not open file", "Error", JOptionPane.ERROR_MESSAGE); } } public void setDefaultFilename(String filename) { filenameBox.setText(filename); } } private class FilterButtons extends JPanel { private SnapShop s; private ImagePanel ip; public FilterButtons(SnapShop s) { // 0 rows since we don't know how many buttons there are setLayout(new GridLayout(0, 1, 3, 3)); this.s = s; this.ip = s.getImagePanel(); ; } public void addFilter(Filter f, String description) { JButton filterButton = new JButton(description); filterButton.addActionListener(new FilterButtonListener(this, f)); add(filterButton); s.pack(); } public void applyFilter(Filter f) { try { ip.applyFilter(f); } catch (Exception e) { e.printStackTrace(System.out); } } private class FilterButtonListener implements ActionListener { private FilterButtons fb; private Filter f; public FilterButtonListener(FilterButtons fb, Filter f) { this.fb = fb; this.f = f; } public void actionPerformed(ActionEvent e) { fb.applyFilter(f); } } } private class ImagePanel extends JPanel { private BufferedImage bi; private SnapShop s; public ImagePanel(SnapShop s) { bi = null; this.s = s; } public void loadImage(String filename) { Image img = Toolkit.getDefaultToolkit().getImage(filename); try { MediaTracker tracker = new MediaTracker(this); tracker.addImage(img, 0); tracker.waitForID(0); } catch (Exception e) { } int width = img.getWidth(this); int height = img.getHeight(this); bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB); Graphics2D biContext = bi.createGraphics(); biContext.drawImage(img, 0, 0, null); setPreferredSize(new Dimension(bi.getWidth(), bi.getHeight())); revalidate(); s.pack(); s.repaint(); } protected void paintComponent(Graphics g) { super.paintComponent(g); if (bi != null) g.drawImage(bi, 0, 0, this); } public void applyFilter(Filter f) { if (bi == null) return; PixelImage newImage = new PixelImage(bi); s.showWaitDialog(); f.filter(newImage); s.hideWaitDialog(); bi = newImage.getImage(); repaint(); } } private class RenderingDialog extends Frame { public RenderingDialog(JFrame parent) { super("Message"); Point p = parent.getLocation(); setLocation((int) p.getX() + 100, (int) p.getY() + 100); Label label = new Label("Applying filter, please wait...", JLabel.CENTER); this.setLayout(new BorderLayout()); this.add(label, BorderLayout.CENTER); } } /** * Add a filter to the SnapShop interface. Creates a button and links it to * the filter. * * @param f * The filter to apply * @param description * English description of the filter */ public void addFilter(Filter f, String description) { fb.addFilter(f, description); } /** * Display a message box telling the user that the image is being processed */ protected void showWaitDialog() { rd.pack(); rd.setVisible(true); } /** * The image has been processed. Hide the message box. */ protected void hideWaitDialog() { rd.setVisible(false); } /** * Return the image panel of this SnapShop */ protected ImagePanel getImagePanel() { return ip; } /** * Set the default filename to appear in the box * * @param filename * The filename */ public void setDefaultFilename(String filename) { fl.setDefaultFilename(filename); } /** * Open a SnapShop */ public static void main(String[] args) { SnapShop s = new SnapShop(); } } Contact Details