pictureprocess.java

this small program about implement barcodes in mobile phone

package barcodereader;

import barcodereadercore.Processor;
import java.io.IOException;
import javax.microedition.lcdui.Canvas;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;
import javax.microedition.lcdui.game.Sprite;

public class PictureProcess implements Runnable{
    public Processor processor;
    private BarcodeReader barcodereader;
    private LoadingScreen loadingscreen;
    private Thread loadingscreent, processort;
    private char[] character = {'*', '-', '$', '%', ' ', '.', '/', '+', '0', 
        '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 
        'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 
        'T', 'U', 'V', 'W', 'X', 'Y', 'Z'};
    private String[] characterdata = {"bWbwBwBwb", "bWbwbwBwB", "bWbWbWbwb", 
        "bwbWbWbWb", "bWBwbwBwb", "BWbwbwBwb", "bWbWbwbWb", "bWbwbWbWb", 
        "bwbWBwBwb", "BwbWbwbwB", "bwBWbwbwB", "BwBWbwbwb", "bwbWBwbwB", 
        "BwbWBwbwb", "bwBWBwbwb", "bwbWbwBwB", "BwbWbwBwb", "bwBWbwBwb", 
        "BwbwbWbwB", "bwBwbWbwB", "BwBwbWbwb", "bwbwBWbwB", "BwbwBWbwb", 
        "bwBwBWbwb", "bwbwbWBwB", "BwbwbWBwb", "bwBwbWBwb", "bwbwBWBwb", 
        "BwbwbwbWB", "bwBwbwbWB", "BwBwbwbWb", "bwbwBwbWB", "BwbwBwbWb", 
        "bwBwBwbWb", "bwbwbwBWB", "BwbwbwBWb", "bwBwbwBWb", "bwbwBwBWb", 
        "BWbwbwbwB", "bWBwbwbwB", "BWBwbwbwb", "bWbwBwbwB", "BWbwBwbwb", 
        "bWBwBwbwb"};
    private boolean processcondition;
    
    public PictureProcess(BarcodeReader br) {
        barcodereader = br;
        
        processor = new Processor(null, character, characterdata, 44);
        loadingscreen = new LoadingScreen(processor);
        
        processcondition = true;
    }
    
    public void run() {
        processcondition = true;
        
        barcodereader.display.setCurrent(loadingscreen);
        loadingscreent = new Thread(loadingscreen);
        loadingscreent.start();
        
        processor.progress = 0;
        processort = new Thread(processor);
        processort.start();
    }
    
    public void backToMainMenu() {
        try{
            loadingscreent.join();
        }
        catch(InterruptedException ie) {
            ie.printStackTrace();
        }
        barcodereader.mainmenu.setFullScreenMode(true);
        barcodereader.display.setCurrent(barcodereader.mainmenu);
    }
    
    private class LoadingScreen extends Canvas implements Runnable{
        private Processor processor;
        private Image background, loading;
        private String[] wordbuffer;
        private int loadingindex;
        
        public LoadingScreen(Processor p) {
            processor = p;
            
            setFullScreenMode(true);
            
            try{
                background = Image.createImage(getClass().getResourceAsStream(
                    "/image/takepictureresultbackground.PNG"));
                loading = Image.createImage(getClass().getResourceAsStream(
                    "/image/loading.PNG"));
            }
            catch(IOException ioe) {
                ioe.printStackTrace();
            }
            
            loadingindex = 0;
        }
        
        public void paint(Graphics g) {
            barcodereader.graphics.setColor(0, 0, 0);
            barcodereader.graphics.fillRect(0, 0, barcodereader.bufferheight, 
                barcodereader.bufferwidth);
            barcodereader.graphics.drawImage(background, 0, 0, 
                Graphics.LEFT | Graphics.TOP);
            
            barcodereader.graphics.setColor(255, 200, 0);
            if(processcondition) {
                barcodereader.graphics.drawRegion(loading, 
                    0, loadingindex*30, 120, 30, Sprite.TRANS_NONE, 28, 80, 
                    Graphics.LEFT | Graphics.TOP);
                barcodereader.graphics.drawString("Loading ( " + 
                    processor.progress + "% )", 
                    (176-barcodereader.font.stringWidth("Loading ( " + 
                    processor.progress + "% )"))/2, 130, 
                    Graphics.LEFT | Graphics.TOP);
            }
            else{
                barcodereader.graphics.drawString("Failed To Read Barcode", 
                    (176-barcodereader.font.stringWidth("Failed To Read Barcode"))/2, 
                    (220-barcodereader.fontheight)/2, 
                    Graphics.LEFT | Graphics.TOP);
            }
            
            g.setColor(0, 0, 0);
            g.fillRect(0, 0, barcodereader.width, barcodereader.height);
            g.drawImage(barcodereader.background, barcodereader.halfwidth, 
                barcodereader.halfheight, Graphics.HCENTER | Graphics.VCENTER);
            g.drawImage(barcodereader.buffer, barcodereader.halfwidth, 
                barcodereader.halfheight, Graphics.HCENTER | Graphics.VCENTER);
        }
        
        public void run() {
            int a, b, c;
            
            while(processor.progress!=100) {
                if(processcondition) {
                    loadingindex++;
                    if(loadingindex>8) {
                        loadingindex = 0;
                    }
                }
                
                repaint();
                
                try{
                    Thread.sleep(50);
                }
                catch(InterruptedException ie) {
                    ie.printStackTrace();
                }
            }
            
            repaint();
            
            //debug
            /*barcodereader.mainmenu.setFullScreenMode(true);
            barcodereader.display.setCurrent(barcodereader.mainmenu);*/
            
            try{
                processort.join();
            }
            catch(InterruptedException ie) {
                ie.printStackTrace();
            }
            
            if(processor.word!=null) {
                b = 0;
                for(a=0;a<processor.word.length;a++) {
                    if(!processor.word[a].equals("")) {
                        b++;
                    }
                }
                if(b>0) {
                    wordbuffer = new String[b];
                    c = 0;
                    for(a=0;a<processor.word.length;a++) {
                        if(!processor.word[a].equals("")) {
                            wordbuffer[c] = processor.word[a];
                            c++;
                        }
                    }
                    processor.word = wordbuffer;
                    barcodereader.mainmenu.result.wordnumber = 
                        processor.word.length;
                    barcodereader.mainmenu.result.wordindex = 0;
                    barcodereader.mainmenu.result.setFullScreenMode(true);
                    barcodereader.display.setCurrent(
                        barcodereader.mainmenu.result);
                }
                else{
                    processcondition = false;
                    repaint();
                }
            }
            else{
                processcondition = false;
                repaint();
            }
        }
        
        public void keyPressed(int KeyCode) {
            if(!processcondition) {
                backToMainMenu();
            }
        }
    }
}