Examples with BitMatrix com.google.zxing.common.BitMatrix used on opensource projects

Example 66 with BitMatrix

use of com.google.zxing.common.BitMatrix in project BGAQRCode-Android by bingoogolapple.

the class QRCodeEncoder method syncEncodeQRCode.

/**
     * 同步创建指定前景色、指定背景色、带logo的二维码图片。该方法是耗时操作，请在子线程中调用。
     *
     * @param content         要生成的二维码图片内容
     * @param size            图片宽高，单位为px
     * @param foregroundColor 二维码图片的前景色
     * @param backgroundColor 二维码图片的背景色
     * @param logo            二维码图片的logo
     */
public static Bitmap syncEncodeQRCode(String content, int size, int foregroundColor, int backgroundColor, Bitmap logo) {
    try {
        BitMatrix matrix = new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, size, size, HINTS);
        int[] pixels = new int[size * size];
        for (int y = 0; y < size; y++) {
            for (int x = 0; x < size; x++) {
                if (matrix.get(x, y)) {
                    pixels[y * size + x] = foregroundColor;
                } else {
                    pixels[y * size + x] = backgroundColor;
                }
            }
        }
        Bitmap bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
        bitmap.setPixels(pixels, 0, size, 0, 0, size, size);
        return addLogoToQRCode(bitmap, logo);
    } catch (Exception e) {
        return null;
    }
}

Example 67 with BitMatrix

use of com.google.zxing.common.BitMatrix in project Signal-Android by WhisperSystems.

the class QrCode method create.

@NonNull
public static Bitmap create(String data) {
    try {
        BitMatrix result = new QRCodeWriter().encode(data, BarcodeFormat.QR_CODE, 512, 512);
        Bitmap bitmap = Bitmap.createBitmap(result.getWidth(), result.getHeight(), Bitmap.Config.ARGB_8888);
        for (int y = 0; y < result.getHeight(); y++) {
            for (int x = 0; x < result.getWidth(); x++) {
                if (result.get(x, y)) {
                    bitmap.setPixel(x, y, Color.BLACK);
                }
            }
        }
        return bitmap;
    } catch (WriterException e) {
        Log.w(TAG, e);
        return Bitmap.createBitmap(512, 512, Bitmap.Config.ARGB_8888);
    }
}

Example 68 with BitMatrix

use of com.google.zxing.common.BitMatrix in project KeyBox by skavanagh.

the class OTPAction method qrImage.

@Action(value = "/admin/qrImage")
public String qrImage() {
    String username = UserDB.getUser(AuthUtil.getUserId(servletRequest.getSession())).getUsername();
    String secret = AuthUtil.getOTPSecret(servletRequest.getSession());
    AuthUtil.setOTPSecret(servletRequest.getSession(), null);
    try {
        String qrCodeText = "otpauth://totp/KeyBox%20%28" + URLEncoder.encode(servletRequest.getHeader("host").replaceAll("\\:.*$", ""), "utf-8") + "%29:" + username + "?secret=" + secret;
        QRCodeWriter qrWriter = new QRCodeWriter();
        Hashtable<EncodeHintType, String> hints = new Hashtable<>();
        hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
        BitMatrix matrix = qrWriter.encode(qrCodeText, BarcodeFormat.QR_CODE, QR_IMAGE_WIDTH, QR_IMAGE_HEIGHT, hints);
        servletResponse.setContentType("image/png");
        BufferedImage image = new BufferedImage(QR_IMAGE_WIDTH, QR_IMAGE_HEIGHT, BufferedImage.TYPE_INT_RGB);
        Graphics2D graphics = (Graphics2D) image.getGraphics();
        graphics.setColor(Color.WHITE);
        graphics.fillRect(0, 0, QR_IMAGE_WIDTH, QR_IMAGE_HEIGHT);
        graphics.setColor(Color.BLACK);
        for (int x = 0; x < QR_IMAGE_WIDTH; x++) {
            for (int y = 0; y < QR_IMAGE_HEIGHT; y++) {
                if (matrix.get(x, y)) {
                    graphics.fillRect(x, y, 1, 1);
                }
            }
        }
        ImageIO.write(image, "png", servletResponse.getOutputStream());
        servletResponse.getOutputStream().flush();
        servletResponse.getOutputStream().close();
    } catch (Exception ex) {
        log.error(ex.toString(), ex);
    }
    return null;
}

Example 69 with BitMatrix

use of com.google.zxing.common.BitMatrix in project zxingfragmentlib by mitoyarzun.

the class QRCodeEncoder method encodeAsBitmap.

Bitmap encodeAsBitmap() throws WriterException {
    String contentsToEncode = contents;
    if (contentsToEncode == null) {
        return null;
    }
    Map<EncodeHintType, Object> hints = null;
    String encoding = guessAppropriateEncoding(contentsToEncode);
    if (encoding != null) {
        hints = new EnumMap<>(EncodeHintType.class);
        hints.put(EncodeHintType.CHARACTER_SET, encoding);
    }
    BitMatrix result;
    try {
        result = new MultiFormatWriter().encode(contentsToEncode, format, dimension, dimension, hints);
    } catch (IllegalArgumentException iae) {
        // Unsupported format
        return null;
    }
    int width = result.getWidth();
    int height = result.getHeight();
    int[] pixels = new int[width * height];
    for (int y = 0; y < height; y++) {
        int offset = y * width;
        for (int x = 0; x < width; x++) {
            pixels[offset + x] = result.get(x, y) ? BLACK : WHITE;
        }
    }
    Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
    return bitmap;
}

Example 70 with BitMatrix

use of com.google.zxing.common.BitMatrix in project zxing by zxing.

the class DataMatrixWriter method convertByteMatrixToBitMatrix.

/**
   * Convert the ByteMatrix to BitMatrix.
   *
   * @param matrix The input matrix.
   * @return The output matrix.
   */
private static BitMatrix convertByteMatrixToBitMatrix(ByteMatrix matrix) {
    int matrixWidgth = matrix.getWidth();
    int matrixHeight = matrix.getHeight();
    BitMatrix output = new BitMatrix(matrixWidgth, matrixHeight);
    output.clear();
    for (int i = 0; i < matrixWidgth; i++) {
        for (int j = 0; j < matrixHeight; j++) {
            // Zero is white in the bytematrix
            if (matrix.get(i, j) == 1) {
                output.set(i, j);
            }
        }
    }
    return output;
}