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/*
 * Copyright 2008 ZXing authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.zxing.client.j2se;

import com.google.zxing.BinaryBitmap;
import com.google.zxing.LuminanceSource;
import com.google.zxing.MultiFormatReader;
import com.google.zxing.ReaderException;
import com.google.zxing.Result;
import com.google.zxing.common.HybridBinarizer;

import java.awt.Container;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;

import javax.imageio.ImageIO;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextArea;

/**
 * 

Simple GUI frontend to the library. Right now, only decodes a local file. * This definitely needs some improvement. Just throwing something down to start.

* * @author Sean Owen */ public final class GUIRunner extends JFrame { private final JLabel imageLabel; private final JTextArea textArea; private GUIRunner() { imageLabel = new JLabel(); textArea = new JTextArea(); textArea.setEditable(false); textArea.setMaximumSize(new Dimension(400, 200)); Container panel = new JPanel(); panel.setLayout(new FlowLayout()); panel.add(imageLabel); panel.add(textArea); setTitle("ZXing"); setSize(400, 400); setDefaultCloseOperation(EXIT_ON_CLOSE); setContentPane(panel); setLocationRelativeTo(null); } public static void main(String[] args) throws MalformedURLException { GUIRunner runner = new GUIRunner(); runner.setVisible(true); runner.chooseImage(); } private void chooseImage() throws MalformedURLException { JFileChooser fileChooser = new JFileChooser(); fileChooser.showOpenDialog(this); File file = fileChooser.getSelectedFile(); Icon imageIcon = new ImageIcon(file.toURI().toURL()); setSize(imageIcon.getIconWidth(), imageIcon.getIconHeight() + 100); imageLabel.setIcon(imageIcon); String decodeText = getDecodeText(file); textArea.setText(decodeText); } private static String getDecodeText(File file) { BufferedImage image; try { image = ImageIO.read(file); } catch (IOException ioe) { return ioe.toString(); } if (image == null) { return "Could not decode image"; } LuminanceSource source = new BufferedImageLuminanceSource(image); BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source)); Result result; try { result = new MultiFormatReader().decode(bitmap); } catch (ReaderException re) { return re.toString(); } return result.getText(); } }




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