88 lines
2.7 KiB
Java
88 lines
2.7 KiB
Java
package de.vanitasvitae.omemoqrgenerator;
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import java.awt.*;
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import java.awt.image.BufferedImage;
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import java.util.Iterator;
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import java.util.Map;
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import org.jivesoftware.smackx.omemo.internal.OmemoDevice;
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import org.jivesoftware.smackx.omemo.trust.OmemoFingerprint;
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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 com.jfoenix.controls.JFXTextArea;
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import javafx.embed.swing.SwingFXUtils;
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import javafx.fxml.FXML;
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import javafx.scene.image.ImageView;
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import org.jxmpp.jid.BareJid;
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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 JFXTextArea content_text;
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private BareJid jid;
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private Map<OmemoDevice, OmemoFingerprint> fingerprintMap;
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public void setFingerprints(BareJid jid, Map<OmemoDevice, OmemoFingerprint> fingerprints) {
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this.jid = jid;
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this.fingerprintMap = fingerprints;
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drawQRCode(jid, fingerprints);
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}
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public void drawQRCode(BareJid jid, Map<OmemoDevice, OmemoFingerprint> fingerprints) {
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int width = 300, height = 300;
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QRCodeWriter qrCodeWriter = new QRCodeWriter();
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String content = "xmpp:" + jid.toString();
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Iterator<OmemoDevice> iterator = fingerprints.keySet().iterator();
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if (iterator.hasNext()) {
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OmemoDevice first = iterator.next();
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content += "?omemo-sid-" + first.getDeviceId() + "=" + fingerprints.get(first);
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}
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while (iterator.hasNext()) {
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OmemoDevice next = iterator.next();
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content += ";omemo-sid-" + next.getDeviceId() + "=" + fingerprints.get(next);
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}
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content_text.setText(content);
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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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