使用zxing编写的二维码生成解析工具：QRCoder

TipDialog.java

package com.wolf_pan;

import java.util.Timer;

import java.util.TimerTask;

import javax.swing.JDialog;

import javax.swing.JFrame;

import javax.swing.JLabel;

public class TipDialog extends JDialog {

    public TipDialog(JFrame owner, String tip, int width, int height) {

        super.setUndecorated(true);

        super.setSize(width, height);

        super.setLocationRelativeTo(owner);

        super.add(new JLabel("<html><font color=\"red\">" + tip + "</font></html>", JLabel.CENTER));

    }

    public void show(long duration) {

        setVisible(true);

        new Timer().schedule(new TimerTask() {

            @Override

            public void run() {

                dispose();

            }

        }, duration);

    }

}

PicFileChooser.java

package com.wolf_pan;

import javax.swing.JFileChooser;

import javax.swing.filechooser.FileNameExtensionFilter;

public class PicFileChooser extends JFileChooser {

    public PicFileChooser() {

        FileNameExtensionFilter filter1 = new FileNameExtensionFilter("ICO (*.ico)", "ico");

        FileNameExtensionFilter filter2 = new FileNameExtensionFilter("PNG (*.png)", "png");

        FileNameExtensionFilter filter3 = new FileNameExtensionFilter("TIFF (*.tif;*.tiff)", "tif", "tiff");

        FileNameExtensionFilter filter4 = new FileNameExtensionFilter("GIF (*.gif)", "gif");

        FileNameExtensionFilter filter5 = new FileNameExtensionFilter("JPEG (*.jpg;*.jpeg;*.jpe;*.jfif)", "jpg", "jpeg", "jpe", "jfif");

        FileNameExtensionFilter filter6 = new FileNameExtensionFilter("Bitmap Files (*.bmp)", "bmp", "dib");

        FileNameExtensionFilter filter7 = new FileNameExtensionFilter("All Picture Files", "ico", "png", "tif", "tiff", "gif", "jpg", "jpeg", "jpe", "jfif", "bmp", "dib");

        super.setFileFilter(filter1);

        super.setFileFilter(filter2);

        super.setFileFilter(filter3);

        super.setFileFilter(filter4);

        super.setFileFilter(filter5);

        super.setFileFilter(filter6);

        super.setFileFilter(filter7);

        super.setAcceptAllFileFilterUsed(false);

    }

}

MainFrame.java

package com.wolf_pan;

import com.google.zxing.BarcodeFormat;

import com.google.zxing.BinaryBitmap;

import com.google.zxing.ChecksumException;

import com.google.zxing.EncodeHintType;

import com.google.zxing.FormatException;

import com.google.zxing.NotFoundException;

import com.google.zxing.WriterException;

import com.google.zxing.common.BitMatrix;

import com.google.zxing.common.HybridBinarizer;

import com.google.zxing.qrcode.QRCodeReader;

import com.google.zxing.qrcode.QRCodeWriter;

import java.awt.BorderLayout;

import java.awt.Color;

import java.awt.Desktop;

import java.awt.FlowLayout;

import java.awt.Toolkit;

import java.awt.event.ActionEvent;

import java.awt.event.MouseAdapter;

import java.awt.event.MouseEvent;

import java.awt.image.BufferedImage;

import java.io.File;

import java.io.IOException;

import java.net.URI;

import java.util.HashMap;

import java.util.logging.Level;

import java.util.logging.Logger;

import javax.imageio.ImageIO;

import javax.swing.ImageIcon;

import javax.swing.JButton;

import javax.swing.JFileChooser;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JMenuItem;

import javax.swing.JOptionPane;

import javax.swing.JPanel;

import javax.swing.JPopupMenu;

import javax.swing.JScrollPane;

import javax.swing.JTabbedPane;

import javax.swing.JTextArea;

import javax.swing.event.ChangeEvent;

import javax.swing.filechooser.FileNameExtensionFilter;

public class MainFrame extends JFrame {

    private JTabbedPane tabbedPane;

    private HintTextArea textToEncodeHintTextArea;

    private JTextArea decodedResultTextArea;

    private JLabel encodedImageLabel, qrcodeToDecodeLabel, tipLabel;

    private JButton encodeButton, chooseButton, decodeButton, contactAuthorButton;

    private JPopupMenu popupMenu;

    private JMenuItem copyMenuItem, saveMenuItem;

    private BufferedImage qrcodeBufferedImage;

    private String qrcodePicFilename;

    private static final Logger LOGGER = Logger.getLogger(MainFrame.class.getName());

    private MainFrame() {

        super("QRCoder");

        initializeComponents();

        initializeEventListeners();

    }

    private void initializeComponents() {

        setSize(400, 600);

        setLocationRelativeTo(null);

        setDefaultCloseOperation(EXIT_ON_CLOSE);

        tabbedPane = new JTabbedPane();

        JPanel encodePanel = new JPanel(new BorderLayout()), decodePanel = new JPanel(new BorderLayout()), authorPanel = new JPanel(new BorderLayout());

        textToEncodeHintTextArea = new HintTextArea("Type text you want to encode here", 4);

        encodePanel.add(new JScrollPane(textToEncodeHintTextArea), BorderLayout.NORTH);

        encodedImageLabel = new JLabel();

        encodedImageLabel.setHorizontalAlignment(JLabel.CENTER);

        encodePanel.add(encodedImageLabel);

        JPanel southEncodePanel = new JPanel(new FlowLayout(FlowLayout.RIGHT, 10, 0));

        tipLabel = new JLabel("<html><font color=\"blue\" size=\"8\">Tip</font></html>");

        southEncodePanel.add(tipLabel);

        encodeButton = new JButton("Encode");

        southEncodePanel.add(encodeButton);

        encodePanel.add(southEncodePanel, BorderLayout.SOUTH);

        tabbedPane.add("Encode", encodePanel);

        JPanel northPanel = new JPanel(new BorderLayout());

        JPanel buttonPanel = new JPanel(new FlowLayout(FlowLayout.RIGHT));

        chooseButton = new JButton("Choose...");

        buttonPanel.add(chooseButton);

        decodeButton = new JButton("Decode");

        buttonPanel.add(decodeButton);

        northPanel.add(buttonPanel, BorderLayout.NORTH);

        decodedResultTextArea = new JTextArea(4, 0);

        decodedResultTextArea.setLineWrap(true);

        decodedResultTextArea.setEditable(false);

        JPanel decodedResultPanel = new JPanel(new BorderLayout());

        JLabel decodedResultLabel = new JLabel("<html><font size=\"5\">Decoded result:</font></html>");

        decodedResultPanel.add(decodedResultLabel, BorderLayout.NORTH);

        decodedResultPanel.add(new JScrollPane(decodedResultTextArea));

        northPanel.add(decodedResultPanel);

        decodePanel.add(northPanel, BorderLayout.NORTH);

        qrcodeToDecodeLabel = new JLabel(new ImageIcon(MainFrame.class.getResource("/images/author.jpg")));

        decodePanel.add(qrcodeToDecodeLabel);

        tabbedPane.add("Decode", decodePanel);

        JLabel authorLabel = new JLabel("<html><br /><font size=\"20\">作者：布伊什<br />QQ: 980639902</font></html>", JLabel.CENTER);

        authorPanel.add(authorLabel, BorderLayout.NORTH);

        JLabel authorQRCodeLabel = new JLabel(new ImageIcon(MainFrame.class.getResource("/images/author.jpg")));

        authorPanel.add(authorQRCodeLabel);

        contactAuthorButton = new JButton("联系作者");

        JPanel contactAuthorButtonPanel = new JPanel(new FlowLayout(FlowLayout.RIGHT));

        contactAuthorButtonPanel.add(contactAuthorButton);

        authorPanel.add(contactAuthorButtonPanel, BorderLayout.SOUTH);

        tabbedPane.add("Author", authorPanel);

        add(tabbedPane);

        popupMenu = new JPopupMenu();

        copyMenuItem = new JMenuItem("Copy");

        popupMenu.add(copyMenuItem);

        saveMenuItem = new JMenuItem("Save");

        popupMenu.add(saveMenuItem);

    }

    private void initializeEventListeners() {

        tabbedPane.addChangeListener((ChangeEvent ev) -> {

            if (tabbedPane.getSelectedIndex() == 0) {

                encodeButton.requestFocus();

            }

        });

        encodeButton.addActionListener((ActionEvent ev) -> {

            onEncodeButtonClicked();

        });

        chooseButton.addActionListener((ActionEvent ev) -> {

            onChooseButtonClicked();

        });

        decodeButton.addActionListener((ActionEvent ev) -> {

            onDecodeButtonClicked();

        });

        contactAuthorButton.addActionListener((ActionEvent ev) -> {

            onContactAuthorButtonClicked();

        });

        encodedImageLabel.addMouseListener(new MouseAdapter() {

            @Override

            public void mouseClicked(MouseEvent ev) {

                onEncodedImageLabelClicked(ev);

            }

        });

        tipLabel.addMouseListener(new MouseAdapter() {

            private TipDialog tipDialog;

            @Override

            public void mouseEntered(MouseEvent ev) {

                tipDialog = new TipDialog(MainFrame.this, "右键单击生成的二维码弹出工具菜单", 220, 30);

                tipDialog.setVisible(true);

            }

            @Override

            public void mouseExited(MouseEvent ev) {

                tipDialog.dispose();

            }

        });

        copyMenuItem.addActionListener((ActionEvent ev) -> {

            onCopyMenuItemClicked();

        });

        saveMenuItem.addActionListener((ActionEvent ev) -> {

            onSaveMenuItemClicked();

        });

    }

    private void onEncodeButtonClicked() {

        try {

            String contents = textToEncodeHintTextArea.getText();

            int width = encodedImageLabel.getWidth() - 20;

            int height = encodedImageLabel.getHeight() - 20;

            HashMap<EncodeHintType, String> hints = new HashMap<>();

            hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");

            BitMatrix bitMatrix = new QRCodeWriter().encode(contents, BarcodeFormat.QR_CODE, width, height, hints);

            qrcodeBufferedImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);

            for (int y = 0; y < height; ++y) {

                for (int x = 0; x < width; ++x) {

                    Color color = bitMatrix.get(x, y) ? Color.BLACK : Color.WHITE;

                    qrcodeBufferedImage.setRGB(x, y, color.getRGB());

                }

            }

            encodedImageLabel.setIcon(new ImageIcon(qrcodeBufferedImage));

        } catch (WriterException ex) {

            LOGGER.log(Level.SEVERE, null, ex);

            JOptionPane.showMessageDialog(this, ex.getMessage(), "Error", JOptionPane.ERROR_MESSAGE);

        }

    }

    private void onChooseButtonClicked() {

        PicFileChooser picFileChooser = new PicFileChooser();

        if (picFileChooser.showOpenDialog(this) == PicFileChooser.APPROVE_OPTION) {

            qrcodePicFilename = picFileChooser.getSelectedFile().getAbsolutePath();

            qrcodeToDecodeLabel.setIcon(new ImageIcon(qrcodePicFilename));

        }

    }

    private void onDecodeButtonClicked() {

        try {

            BufferedImage qrcodeToDecodeBufferedImage;

            if (qrcodePicFilename == null) {

                qrcodeToDecodeBufferedImage = ImageIO.read(MainFrame.class.getResource("/images/author.jpg"));

            } else {

                qrcodeToDecodeBufferedImage = ImageIO.read(new File(qrcodePicFilename));

            }

            BufferedImageLuminanceSource source = new BufferedImageLuminanceSource(qrcodeToDecodeBufferedImage);

            String decodedText = new QRCodeReader().decode(new BinaryBitmap(new HybridBinarizer(source))).getText();

            decodedResultTextArea.setText(decodedText);

        } catch (ChecksumException | FormatException | NotFoundException | IOException ex) {

            LOGGER.log(Level.SEVERE, null, ex);

            if (ex instanceof NotFoundException) {

                JOptionPane.showMessageDialog(this, "QR code not found", "Error", JOptionPane.ERROR_MESSAGE);

            } else {

                JOptionPane.showMessageDialog(this, "Cannot decode the QR code", "Unknown Error", JOptionPane.ERROR_MESSAGE);

            }

        }

    }

    private void onContactAuthorButtonClicked() {

        try {

            Desktop.getDesktop().browse(URI.create("tencent://message/?uin=980639902"));

        } catch (IOException ex) {

            LOGGER.log(Level.SEVERE, null, ex);

        }

    }

    private void onEncodedImageLabelClicked(MouseEvent ev) {

        if (ev.getButton() == MouseEvent.BUTTON3) {

            popupMenu.show(encodedImageLabel, ev.getX(), ev.getY());

        }

    }

    private void onCopyMenuItemClicked() {

        if (qrcodeBufferedImage != null) {

            ImageSelection contents = new ImageSelection(qrcodeBufferedImage);

            Toolkit.getDefaultToolkit().getSystemClipboard().setContents(contents, null);

            TipDialog tipDialog = new TipDialog(this, "Copied to clipboard", 150, 30);

            tipDialog.show(1500);

        }

    }

    private void onSaveMenuItemClicked() {

        if (qrcodeBufferedImage != null) {

            JFileChooser fileChooser = new JFileChooser();

            fileChooser.setFileFilter(new FileNameExtensionFilter("PNG (*.png)", "png"));

            fileChooser.setFileFilter(new FileNameExtensionFilter("Bitmap Files (*.bmp)", "bmp"));

            fileChooser.setAcceptAllFileFilterUsed(false);

            if (fileChooser.showSaveDialog(this) == PicFileChooser.APPROVE_OPTION) {

                try {

                    String formatName;

                    if (fileChooser.getFileFilter().getDescription().equals("PNG (*.png)")) {

                        formatName = "png";

                    } else {

                        formatName = "bmp";

                    }

                    File destinationFile = new File(fileChooser.getSelectedFile() + "." + formatName);

                    if (ImageIO.write(qrcodeBufferedImage, formatName, destinationFile)) {

                        TipDialog tipDialog = new TipDialog(this, "Saved to disk", 150, 30);

                        tipDialog.show(1500);

                    }

                } catch (IOException ex) {

                    LOGGER.log(Level.SEVERE, null, ex);

                }

            }

        }

    }

    public static void main(String[] args) {

        MainFrame mainFrame = new MainFrame();

        mainFrame.setVisible(true);

    }

}

ImageSelection.java

package com.wolf_pan;

import java.awt.Image;

import java.awt.datatransfer.DataFlavor;

import java.awt.datatransfer.Transferable;

import java.awt.datatransfer.UnsupportedFlavorException;

public class ImageSelection implements Transferable {

    private final Image image;

    public ImageSelection(Image image) {

        this.image = image;

    }

    @Override

    public DataFlavor[] getTransferDataFlavors() {

        return new DataFlavor[]{DataFlavor.imageFlavor};

    }

    @Override

    public boolean isDataFlavorSupported(DataFlavor flavor) {

        return flavor.equals(DataFlavor.imageFlavor);

    }

    @Override

    public Image getTransferData(DataFlavor flavor) throws UnsupportedFlavorException {

        if (!isDataFlavorSupported(flavor)) {

            throw new UnsupportedFlavorException(flavor);

        }

        return image;

    }

}

HintTextArea.java

package com.wolf_pan;

import java.awt.Color;

import java.awt.event.FocusEvent;

import java.awt.event.FocusListener;

import javax.swing.JTextArea;

public class HintTextArea extends JTextArea {

    public HintTextArea(String hint, int rows) {

        super(hint, rows, 0);

        super.setForeground(Color.GRAY);

        super.addFocusListener(new FocusListener() {

            @Override

            public void focusGained(FocusEvent e) {

                if (getForeground() == Color.GRAY && hint.equals(getText())) {

                    setText(null);

                    setForeground(Color.BLACK);

                }

            }

            @Override

            public void focusLost(FocusEvent e) {

                if (getText().equals("")) {

                    setText(hint);

                    setForeground(Color.GRAY);

                }

            }

        });

    }

}

使用zxing编写的二维码生成解析工具：QRCoder的更多相关文章

[开源]C#二维码生成解析工具，可添加自定义Logo
二维码又称 QR Code,QR 全称 Quick Response,是一个近几年来移动设备上超流行的一种编码方式,它比传统的 Bar Code 条形码能存更多的信息,也能表示更多的数据类型:比如:字 ...
[开源]C#二维码生成解析工具，可添加自定义Logo (转)
二维码又称 QR Code,QR 全称 Quick Response,是一个近几年来移动设备上超流行的一种编码方式,它比传统的 Bar Code 条形码能存更多的信息,也能表示更多的数据类型:比如:字 ...
C#二维码生成解析
C#二维码生成解析工具,可添加自定义Logo 二维码又称 QR Code,QR 全称 Quick Response,是一个近几年来移动设备上超流行的一种编码方式,它比传统的 Bar Code 条形码能 ...
java二维码生成-谷歌（Google.zxing）开源二维码生成学习及实例
java二维码生成-谷歌(Google.zxing)开源二维码生成的实例及介绍我们使用比特矩阵(位矩阵)的QR码编码在缓冲图片上画出二维码实例有以下一个传入参数 OutputStream ou ...
Java二维码生成与解码
基于google zxing 的Java二维码生成与解码一.添加Maven依赖(解码时需要上传二维码图片,所以需要依赖文件上传包)  &l ...
Java二维码生成与解码工具Zxing使用
Zxing是Google研发的一款非常好用的开放源代码的二维码生成工具,目前源码托管在github上,源码地址: https://github.com/zxing/zxing 可以看到Zxing库有很 ...
atitit.二维码生成总结java zxing
atitit.二维码生成总结java zxing #-----zxing类库.. but zxing3.0 的类库core-3.0.jar 需要jdk7 只好zing2.2.jar ..jdk6走o ...
java利用Google Zxing实现二维码生成与解析
1.引入zxing 2.使用下面两个类:QRCodeUtil.java和BufferedImageLuminanceSource.java 3.新建单元测试类复制下面测试代码即可. 1.pom文件中 ...
谷歌zxing 二维码生成工具
一.加入maven依赖  <dependency> <groupId>com.google.zxing</groupI ...

随机推荐

好未来谢华亮：AI 在教育行业中的应用
11 月 23 日,在以「AI 产业技术的渗透与融合」为主题的 NIUDAY 北京站中,好未来 SEG 智慧教育事业部技术总监谢华亮为大家带来了关于「AI 在教育行业中的应用」的分享. 本文是对分享内 ...
常州模拟赛d3t2 灰狼呼唤着同胞
题目背景我的母亲柯蒂丽亚,是一个舞者.身披罗纱,一身异国装扮的她,来自灰狼的村子. 曾经在灰狼村子担任女侍的她,被认定在某晚犯下可怕的罪行之后,被赶出了村子. 一切的元凶,都要回到母亲犯下重罪的那一 ...
【leetcode 字符串】466. Count The Repetitions
https://leetcode.com/problems/count-the-repetitions/description/ 找循环节 https://www.cnblogs.com/grandy ...
JavaScript ES6中，export与export default
自述: 本来是对new Vue()和export default比较懵的,查了一下,发现我理解错了两者的关系,也没意识到export与export default的区别,先简单的记录一下基本概念,后续 ...
c字符和字符数组/字符串
一维和二维的都可以:一维的情况如下:1,char string0[10];2,char string1[]="prison break";3,char string2[100]=& ...
Loj #6307. 「雅礼国庆 2017 Day1」Clique
link: https://loj.ac/problem/6307 最大团转补图的独立集,这样的话只有r[x]<l[y]或者r[y]<l[x],x和y才能连边,所以排序之后乱搞就行了. 需 ...
HBASE的安装过程及运行HBASE程序的需要配置的内容
HBase安装配置 ①下载压缩包(选择与自己安装的Hadoop版本的兼容版本,见后面附录) 官网下载地址:https://mirrors.tuna.tsinghua.edu.cn/apache/hba ...
推荐几款屏幕录制工具（可录制GIF）
我们经常会遇到一些场景,需要你向别人展示一些操作或是效果——例如告诉别人某某软件的配置步骤啊.刚设计出来网站的动画效果怎么样啊.某某电影里面的一个镜头多么经典啊.打得大快人心的NBA绝杀瞬间是怎么回事 ...
C#使用PrintDocument打印多页打印预览
PrintDocument实例所有的订阅事件如下: 创建一个PrintDocument的实例.如下: System.Drawing.Printing.PrintDocument docToPrint ...
高级算法设计讲义 Lecture Notes for Advanced Algorithm Design
(Last modification: 2012-12-17) Textbooks: (1) David Williamson, David Shmoys. The Design of Approxi ...

使用zxing编写的二维码生成解析工具：QRCoder

使用zxing编写的二维码生成解析工具：QRCoder的更多相关文章

随机推荐

热门专题