06-14-2011, 09:22 PM
Code:
1.
import java.awt.Container;
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import java.awt.FlowLayout;
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import java.awt.Font;
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import java.awt.FontMetrics;
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import java.awt.Graphics;
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import java.awt.Graphics2D;
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import java.awt.Image;
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import java.awt.RenderingHints;
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import java.awt.event.ActionEvent;
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import java.awt.event.ActionListener;
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import java.awt.image.BufferedImage;
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import java.awt.image.RescaleOp;
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import java.io.BufferedReader;
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import java.io.ByteArrayOutputStream;
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import java.io.DataOutputStream;
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import java.io.File;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.net.HttpURLConnection;
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import java.net.URL;
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import java.util.StringTokenizer;
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import javax.imageio.ImageIO;
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import javax.imageio.ImageWriteParam;
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import javax.imageio.ImageWriter;
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import javax.imageio.stream.ImageOutputStream;
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import javax.imageio.stream.MemoryCacheImageOutputStream;
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import javax.swing.JApplet;
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import javax.swing.JButton;
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import javax.swing.JOptionPane;
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import javax.swing.JTextArea;
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import javax.swing.JTextField;
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@SuppressWarnings("serial")
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public class AppletEE extends JApplet {
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private JTextField tf = new JTextField("", 15);
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private JTextArea ta = new JTextArea( "",8,40);
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private JButton button1 = new JButton("Preview");
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private JButton button2 = new JButton("Generate Image");
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Font font1;
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Font font2;
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BufferedImage bgImage;
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BufferedImage fgImage;
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BufferedImage overlayedImage;
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final int xc=170;
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public void init() {
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this.setSize(450, 550);
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Container cp = getContentPane();
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font1= new Font("Arial", Font.PLAIN, 50);
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font2= new Font("Arial", Font.PLAIN, 30);
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cp.setLayout(new FlowLayout());
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cp.add(tf);
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cp.add(ta);
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cp.add(button1);
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cp.add(button2);
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button1.addActionListener(new ActionListener() {
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public void actionPerformed(ActionEvent e) {
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try {
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// Read from a URL
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URL url = new URL("http://192.168.1.2/bg.png");
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bgImage = imageToBufferedImage(ImageIO.read(url));
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} catch (IOException e1) {
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System.out.println("url error");
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}
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overlayedImage=bgImage;
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generate();
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repaint();
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}
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});
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button2.addActionListener(new ActionListener() {
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public void actionPerformed(ActionEvent e) {
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try {
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// Read from a URL
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URL url = new URL("http://192.168.1.2/bg.png");
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bgImage = imageToBufferedImage(ImageIO.read(url));
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} catch (IOException e1) {
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System.out.println("url error");
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}
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overlayedImage=bgImage;
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generate();
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save();
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tf.setText("");
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ta.setText("");
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}
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});
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}
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public void paint(Graphics g){
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g.drawImage(overlayedImage,0,200,450,337,this);
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}
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public void generate(){
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if(tf.getText().length()==0){
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tf.setText(" ");
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}
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FontMetrics fm = this.getFontMetrics(font1);
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BufferedImage imageA = new BufferedImage(fm.stringWidth(tf.getText()), (int) (fm.getHeight()*1.5), BufferedImage.OPAQUE);
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Graphics2D g = imageA.createGraphics();
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g.setFont(font1);
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g.drawString(tf.getText(), 0, fm.getHeight());
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g.dispose();
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RescaleOp op=new RescaleOp(-1.0f, 255f,null);
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imageA=op.filter(imageA, null);
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int lines=ta.getLineCount();
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if(lines>8){
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lines=8;
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}
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int z=(int) ((bgImage.getHeight()-(font1.getSize()*1.5+font2.getSize()*1.5*lines))/2-font2.getSize());
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overlayedImage=overlayImages(bgImage, imageA, ((bgImage.getWidth())/2-(imageA.getWidth())/2), z);
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int enter=0;
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char[] temp0=new char[ta.getText().length()];
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ta.getText().getChars(0, ta.getText().length(), temp0, 0);
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if(ta.getText().length()>4){
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for(int t=0; t<ta.getText().length()-1; t++){
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if(temp0[t]=='\n'&&temp0[t+1]=='\n'){
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enter++;
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}
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}
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if(enter!=0){
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temp0=new char[ta.getText().length()+enter];
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ta.getText().getChars(0, ta.getText().length(), temp0, 0);
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for(int t=0; t<ta.getText().length()-1; t++){
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if(temp0[t]=='\n'&&temp0[t+1]=='\n'){
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for(int u=temp0.length-1; u>t; u--){
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temp0[u]=temp0[u-1];
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}
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temp0[t+1]=' ';
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}
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}
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}
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}
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String s[] = new String[10];
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StringTokenizer st=new StringTokenizer(new String(temp0),"\n");
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int r=0;
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boolean done=false;
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while(st.hasMoreTokens()&&done==false){
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s[r]=st.nextToken();
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while(s[r].length()>47&&done==false){
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char[] temp1=new char[s[r].length()-47];
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char[] temp2=new char[47];
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s[r].getChars(47, s[r].length(), temp1, 0);
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s[r].getChars(0, 47, temp2, 0);
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s[r]=new String(temp2);
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s[r+1]=new String(temp1);
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r++;
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if(r>=8){
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done=true;
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}
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}
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r++;
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System.out.print(r);
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if(r>=8){
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done=true;
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}
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}
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fm = this.getFontMetrics(font2);
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BufferedImage textImage;
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for(int v=0; v<r; v++){
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textImage = new BufferedImage(fm.stringWidth(ta.getText()), (int) (fm.getHeight()*1.5), BufferedImage.OPAQUE);
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g = textImage.createGraphics();
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g.setFont(font2);
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g.drawString(s[v], 0, fm.getHeight());
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g.dispose();
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z=(int) ((bgImage.getHeight()-(font1.getSize()*1.5+font2.getSize()*1.5*lines))/2+font1.getSize()*1.5+font2.getSize()*1.5*v);
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textImage=op.filter(textImage, null);
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overlayedImage=overlayImages(overlayedImage, textImage, xc, z);
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}
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}
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public static BufferedImage imageToBufferedImage(Image im) {
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BufferedImage bi = new BufferedImage(im.getWidth(null),im.getHeight(null),BufferedImage.TYPE_INT_RGB);
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Graphics bg = bi.getGraphics();
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bg.drawImage(im, 0, 0, null);
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bg.dispose();
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return bi;
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}
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public void save(){
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if(overlayedImage!=null){
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int v=0;
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boolean found=false;
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while(found==false){
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try{
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URL url = new URL("http://192.168.1.2/text" + v + ".png");
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ImageIO.read(url);
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//ImageIO.read(new File(saveFilePath + "text" + v + ".png"));
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v++;
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}catch(Exception e){
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found=true;
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}
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}
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String s=writeImage(overlayedImage, "http://192.168.1.2/text" + v + ".png", "png");
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ta.setText(s);
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overlayedImage.flush();
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}else
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System.out.print("Problem with overlay...");
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}
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public static BufferedImage overlayImages(BufferedImage bgImage, BufferedImage fgImage, int mr, int nr ){//lägger en bild på en annan
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if(fgImage.getHeight()>bgImage.getHeight()||fgImage.getWidth()>fgImage.getWidth()){
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JOptionPane.showMessageDialog(null, "Use smaller text size");
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return null;
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}
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Graphics2D g=bgImage.createGraphics();
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g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
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g.drawImage(bgImage, 0, 0, null);
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g.drawImage(fgImage, mr, nr, null);
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g.dispose();
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return bgImage;
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}
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public static BufferedImage readImage(String filelocation){
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BufferedImage img=null;
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try{
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img=ImageIO.read(new File(filelocation));
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}catch(IOException e){
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e.printStackTrace();
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}
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return img;
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}
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public static String writeImage(BufferedImage img, String filelocation, String extension){
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DataUpload du = new DataUpload();
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boolean bo = du.UploadImage(filelocation, img);
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int rc = du.GetResponseCode();
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String feedback = du.GetServerFeedback();
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return (""+bo+rc+feedback);
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}
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}
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class DataUpload{
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/** The field name as expected by the PHP script, equivalent to the name in the tag input type="file"
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* in an HTML upload form.
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*/
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private static final String FIELD_NAME = "image";
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/** PHP script name. */
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// I hard-code it here, I suppose there is no need for several scripts per applet...
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private static final String SCRIPT_NAME = "Upload.php";
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/** URL path to the PHP script. */
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private static final String BASE_URL = "http://192.168.1.2/EE";
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private String boundary;
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private String uploadURL;
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/** The connection to the server. */
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private HttpURLConnection connection;
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/** The output stream to write the binary data. */
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private DataOutputStream output;
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DataUpload(){
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// Mime boundary of the various parts of the message.
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boundary = "-----DataUploadClass-----PhiLhoSoft-----" + System.currentTimeMillis();
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// We can add a optional parameters, eg. a string given by the user, parameters used, etc.
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uploadURL = BASE_URL + "/" + SCRIPT_NAME;// + "?optionalParam=value&foo=bar";
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}
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/** Pushes image to server. */
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boolean UploadImage(String fileName, BufferedImage image)
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{
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String imageType = null, imageMimeType = null;
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boolean bUseOtherMethod = false;
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if (fileName.endsWith("png"))
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{
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imageType = "png";
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imageMimeType = "image/png";
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}
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else if (fileName.endsWith("jpg"))
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{
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imageType = "jpg";
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imageMimeType = "image/jpeg";
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}
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else if (fileName.endsWith("jpeg"))
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{
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imageType = "jpeg";
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imageMimeType = "image/jpeg";
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bUseOtherMethod = true;
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}
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else
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{
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return false; // Unsupported image format
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}
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try
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{
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boolean isOK = StartPOSTRequest(fileName, imageMimeType);
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if (!isOK)
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return false;
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// Output the encoded image data
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if (!bUseOtherMethod)
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{
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// Uses the default method
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ImageIO.write(image, imageType, output);
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}
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else
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{
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// Alternative for better Jpeg quality control
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ByteArrayOutputStream baos = new ByteArrayOutputStream();
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java.util.Iterator iter = ImageIO.getImageWritersByFormatName(imageType);
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if (iter.hasNext())
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{
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ImageWriter writer = (ImageWriter) iter.next();
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ImageWriteParam iwp = writer.getDefaultWriteParam();
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iwp.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
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iwp.setCompressionQuality(1.0f);
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ImageOutputStream ios = new MemoryCacheImageOutputStream(baos);
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writer.setOutput(ios);
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writer.write(image);
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byte[] b = baos.toByteArray();
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output.write(b, 0, b.length);
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}
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}
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// And actually do the send (flush output and close it)
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EndPOSTRequest();
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}
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catch (Exception e)
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{
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e.printStackTrace();
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return false; // Problem
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}
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finally
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{
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if (output != null)
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{
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try { output.close(); } catch (IOException ioe) {}
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}
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}
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return true; // OK
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}
326.
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/** Reads output from server. */
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String GetServerFeedback()
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{
330.
if (connection == null)
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{
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// ERROR: Can't get server feedback without first uploading data!
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return null;
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}
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BufferedReader input = null;
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StringBuffer answer = new StringBuffer();
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try
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{
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input = new BufferedReader(new InputStreamReader(connection.getInputStream()));
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String answerLine = null;
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do
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{
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answerLine = input.readLine();
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if (answerLine != null)
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{
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answer.append(answerLine + "\n");
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}
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} while (answerLine != null);
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}
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catch (Exception e)
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{
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// Can display some feedback to user there, or just ignore the issue
353.
e.printStackTrace();
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return null; // Problem
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}
356.
finally
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{
358.
if (input != null)
359.
{
360.
try { input.close(); } catch (IOException ioe) {}
361.
}
362.
}
363.
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return answer.toString();
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}
366.
367.
int GetResponseCode()
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{
369.
int responseCode = -1;
370.
if (connection == null)
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{
372.
// ERROR: Can't get server response without first uploading data!
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return -1;
374.
}
375.
// Note that 200 means OK
376.
try
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{
378.
responseCode = connection.getResponseCode();
379.
}
380.
catch (IOException ioe)
381.
{
382.
}
383.
return responseCode;
384.
}
385.
386.
/*-- Private section --*/
387.
388.
private boolean StartPOSTRequest(String fileName, String dataMimeType)
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{
390.
try
391.
{
392.
URL url = new URL(uploadURL); // throws MalformedURLException
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connection = (HttpURLConnection) url.openConnection(); // throws IOException
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// connection is probably of HttpURLConnection type now
395.
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connection.setDoOutput(true); // We output stuff
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connection.setRequestMethod("POST"); // With POST method
398.
connection.setDoInput(true); // We want feedback!
399.
connection.setUseCaches(false); // No cache, it is (supposed to be) a new image each time, even if URL is always the same
400.
401.
// Post multipart data
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// Set request headers
403.
// Might put something like "Content-Length: 8266"
404.
connection.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + boundary);
405.
// throws IllegalStateException, NullPointerException
406.
407.
// Open a stream which can write to the URL
408.
output = new DataOutputStream(connection.getOutputStream());
409.
// the get throws IOException, UnknownServiceException
410.
411.
// Write content to the server, begin with the tag that says a content element is coming
412.
output.writeBytes("--" + boundary + "\r\n"); // throws IOException
413.
414.
// Describe the content:
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// filename isn't really important here, it is probably ignored by the upload script, or can be set to user name if logged in
416.
output.writeBytes("Content-Disposition: form-data; name=\"" + FIELD_NAME +
417.
"\"; filename=\"" + fileName + "\"\r\n");
418.
// Mime type of the data, like image/jpeg or image/png
419.
// Likely to be ignored by the PHP script (which can't trust such external info) but (might be) mandatory and nice to indicate anyway
420.
output.writeBytes("Content-Type: " + dataMimeType + "\r\n");
421.
// By default it is Base64 encoding (that's what most browsers use), but here we don't use this,
422.
// for simplicity sake and because it is less data to transmit. As long as destination server understands it...
423.
// See http://www.freesoft.org/CIE/RFC/1521/5.htm for details
424.
output.writeBytes("Content-Transfer-Encoding: binary\r\n\r\n");
425.
}
426.
catch (Exception e) // Indistinctly catch all kinds of exceptions this code can throw at us
427.
{
428.
// Can display some feedback to user there, or just ignore the issue
429.
e.printStackTrace();
430.
return false; // Problem
431.
}
432.
433.
return true;
434.
}
435.
private boolean EndPOSTRequest()
436.
{
437.
try
438.
{
439.
// Close the multipart form request
440.
output.writeBytes("\r\n--" + boundary + "--\r\n\r\n");
441.
442.
// And actually do the send (flush output and close it)
443.
output.flush(); // throws IOException
444.
}
445.
catch (Exception e) // Indistinctly catch all kinds of exceptions this code can throw at us
446.
{
447.
// Can display some feedback to user there, or just ignore the issue
448.
e.printStackTrace();
449.
return false; // Problem
450.
}
451.
452.
return true;
453.
}
454.
}0300-9520262
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