94 lines
2.8 KiB
Java
94 lines
2.8 KiB
Java
package de.vanitasvitae.omemoqrgenerator;
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import java.awt.Color;
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import java.awt.Graphics2D;
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import java.awt.image.BufferedImage;
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import java.util.Iterator;
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import com.google.zxing.BarcodeFormat;
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import com.google.zxing.WriterException;
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import com.google.zxing.common.BitMatrix;
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import com.google.zxing.qrcode.QRCodeWriter;
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import javafx.collections.ListChangeListener;
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import javafx.embed.swing.SwingFXUtils;
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import javafx.fxml.FXML;
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import javafx.scene.control.ListView;
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import javafx.scene.image.ImageView;
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public class QrDisplayController {
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@FXML
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private ImageView qr_view;
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@FXML
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private ListView listView;
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@FXML
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private ListViewController listViewController;
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private Repository repository = Repository.getInstance();
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@FXML
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public void initialize() {
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drawQRCode();
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repository.getIdentities().addListener((ListChangeListener<OmemoIdentity>) change -> drawQRCode());
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}
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public void drawQRCode() {
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System.out.println("Draw!");
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Repository repository = Repository.getInstance();
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int width = 360, height = 360;
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QRCodeWriter qrCodeWriter = new QRCodeWriter();
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String content = "xmpp:" + repository.getJid().toString();
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Iterator<OmemoIdentity> iterator = repository.getIdentities().iterator();
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while (iterator.hasNext()) {
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OmemoIdentity first = iterator.next();
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if (first.getEnabled()) {
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content += "?omemo-sid-" + first.getDevice().getDeviceId() + "=" + first.getFingerprint().toString();
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break;
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}
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}
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while (iterator.hasNext()) {
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OmemoIdentity next = iterator.next();
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if (next.getEnabled()) {
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content += ";omemo-sid-" + next.getDevice().getDeviceId() + "=" + next.getFingerprint().toString();
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}
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}
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BufferedImage image;
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try {
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BitMatrix byteMatrix = qrCodeWriter.encode(content, BarcodeFormat.QR_CODE, width, height);
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image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
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image.createGraphics();
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Graphics2D graphics = (Graphics2D) image.getGraphics();
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graphics.setColor(Color.WHITE);
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graphics.fillRect(0, 0, width, height);
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graphics.setColor(Color.BLACK);
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for (int i = 0; i < height; i++) {
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for (int j = 0; j < width; j++) {
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if (byteMatrix.get(i, j)) {
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graphics.fillRect(i, j, 1, 1);
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}
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}
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}
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System.out.println("Success...");
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} catch (WriterException ex) {
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ex.printStackTrace();
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return;
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}
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qr_view.setImage(SwingFXUtils.toFXImage(image, null));
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}
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}
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