YPQRCodeItem.java :  » UnTagged » qrcoder » th » co » yellowpages » javame » Android Open Source

//#condition polish.api.fileconnectionapi
package th.co.yellowpages.javame;

import java.io.IOException;

import javax.microedition.io.Connector;
import javax.microedition.io.file.FileConnection;
import javax.microedition.lcdui.Alert;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CustomItem;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;
import javax.microedition.lcdui.Item;
import javax.microedition.lcdui.ItemCommandListener;

public class YPQRCodeItem extends CustomItem implements ItemCommandListener {

  private final static Command CMD_SELECT = new Command("Select",
      Command.ITEM, 0);
  private final static Command CMD_INFO = new Command("Info", Command.ITEM, 1);

  private String qrContent;
  private Image qrImage;
  private int width, height;
  private String filename;
  private YPZXingMIDlet ypZXingMIDlet;
  private YPHistoryForm generateHistoryForm;

  protected YPQRCodeItem(String qrContent, Image qrImage, int width,
      int height, String filename, YPZXingMIDlet ypZXingMIDlet,
      YPHistoryForm generateHistoryForm) {
    super(null);
    try {


    this.qrContent = qrContent;
    this.qrImage = qrImage;
    this.width = width;
    this.height = height;
    this.filename = filename;
    this.ypZXingMIDlet = ypZXingMIDlet;
    this.generateHistoryForm = generateHistoryForm;

    setDefaultCommand(CMD_SELECT);
    addCommand(CMD_INFO);
    this.setItemCommandListener(this);
    } catch(Exception e) {
      System.out.println("Try catch block from YPQRCodeItem.");
      System.out.println(e.toString());
    }
  }

  protected int getMinContentHeight() {
    return height;
  }

  protected int getMinContentWidth() {
    return width;
  }

  protected int getPrefContentHeight(int width) {
    return this.height;
  }

  protected int getPrefContentWidth(int height) {
    return this.width;
  }

  protected void paint(Graphics g, int w, int h) {
    g.drawRect(1, 1, w - 2, h - 2);
    g.setColor(0xffff00);
    g.fillRect(1, 1, w - 2, h - 2);
    g.drawImage(qrImage, 2, 2, Graphics.TOP | Graphics.LEFT);

    g.setColor(0x000000);
    if (qrContent.length() >= 25) {
      g.drawSubstring(qrContent, 0, 25, qrImage.getWidth() + 3, qrImage
          .getHeight() / 2, Graphics.BASELINE | Graphics.LEFT);
    } else {
      g.drawString(qrContent, qrImage.getWidth() + 3,
          qrImage.getHeight() / 2, Graphics.BASELINE | Graphics.LEFT);
    }
  }

  public void commandAction(Command c, Item item) {
    if (c == CMD_SELECT) {
      System.out.println("Command select");
      Thread t = new Thread(new ShowQRThread());
      t.start();
    } else if (c == CMD_INFO) {
      Alert a = new Alert("Info");
      a.setString(qrContent);
      a.setTimeout(Alert.FOREVER);
      ypZXingMIDlet.getDisplay().setCurrent(a);
    }
  }

  private class ShowQRThread implements Runnable {

    public void run() {
      try {
        String url = YPZXingMIDlet.QRCODE_IMAGE_SAVE_PATH + filename;
        FileConnection fc = (FileConnection) Connector.open(url,
            Connector.READ);
        Image i = Image.createImage(fc.openInputStream());
        ypZXingMIDlet.getDisplay().setCurrent(
            new YPQRCodeShowCanvas(i, ypZXingMIDlet,
                generateHistoryForm));
        fc.close();
      } catch (IOException e) {
        e.printStackTrace();
      }
    }
  }
}