Examples with ByteMatrix com.google.zxing.qrcode.encoder.ByteMatrix used on opensource projects

Example 1 with ByteMatrix

use of com.google.zxing.qrcode.encoder.ByteMatrix in project zxing by zxing.

the class QRCodeWriter method renderResult.

// Note that the input matrix uses 0 == white, 1 == black, while the output matrix uses
// 0 == black, 255 == white (i.e. an 8 bit greyscale bitmap).
private static BitMatrix renderResult(QRCode code, int width, int height, int quietZone) {
    ByteMatrix input = code.getMatrix();
    if (input == null) {
        throw new IllegalStateException();
    }
    int inputWidth = input.getWidth();
    int inputHeight = input.getHeight();
    int qrWidth = inputWidth + (quietZone * 2);
    int qrHeight = inputHeight + (quietZone * 2);
    int outputWidth = Math.max(width, qrWidth);
    int outputHeight = Math.max(height, qrHeight);
    int multiple = Math.min(outputWidth / qrWidth, outputHeight / qrHeight);
    // Padding includes both the quiet zone and the extra white pixels to accommodate the requested
    // dimensions. For example, if input is 25x25 the QR will be 33x33 including the quiet zone.
    // If the requested size is 200x160, the multiple will be 4, for a QR of 132x132. These will
    // handle all the padding from 100x100 (the actual QR) up to 200x160.
    int leftPadding = (outputWidth - (inputWidth * multiple)) / 2;
    int topPadding = (outputHeight - (inputHeight * multiple)) / 2;
    BitMatrix output = new BitMatrix(outputWidth, outputHeight);
    for (int inputY = 0, outputY = topPadding; inputY < inputHeight; inputY++, outputY += multiple) {
        // Write the contents of this row of the barcode
        for (int inputX = 0, outputX = leftPadding; inputX < inputWidth; inputX++, outputX += multiple) {
            if (input.get(inputX, inputY) == 1) {
                output.setRegion(outputX, outputY, multiple, multiple);
            }
        }
    }
    return output;
}

Example 2 with ByteMatrix

use of com.google.zxing.qrcode.encoder.ByteMatrix in project weex-example by KalicyZhou.

the class QRCodeWriter method renderResult.

// Note that the input matrix uses 0 == white, 1 == black, while the output matrix uses
// 0 == black, 255 == white (i.e. an 8 bit greyscale bitmap).
private static BitMatrix renderResult(QRCode code, int width, int height, int quietZone) {
    ByteMatrix input = code.getMatrix();
    if (input == null) {
        throw new IllegalStateException();
    }
    int inputWidth = input.getWidth();
    int inputHeight = input.getHeight();
    int qrWidth = inputWidth + (quietZone * 2);
    int qrHeight = inputHeight + (quietZone * 2);
    int outputWidth = Math.max(width, qrWidth);
    int outputHeight = Math.max(height, qrHeight);
    int multiple = Math.min(outputWidth / qrWidth, outputHeight / qrHeight);
    // Padding includes both the quiet zone and the extra white pixels to accommodate the requested
    // dimensions. For example, if input is 25x25 the QR will be 33x33 including the quiet zone.
    // If the requested size is 200x160, the multiple will be 4, for a QR of 132x132. These will
    // handle all the padding from 100x100 (the actual QR) up to 200x160.
    int leftPadding = (outputWidth - (inputWidth * multiple)) / 2;
    int topPadding = (outputHeight - (inputHeight * multiple)) / 2;
    BitMatrix output = new BitMatrix(outputWidth, outputHeight);
    for (int inputY = 0, outputY = topPadding; inputY < inputHeight; inputY++, outputY += multiple) {
        // Write the contents of this row of the barcode
        for (int inputX = 0, outputX = leftPadding; inputX < inputWidth; inputX++, outputX += multiple) {
            if (input.get(inputX, inputY) == 1) {
                output.setRegion(outputX, outputY, multiple, multiple);
            }
        }
    }
    return output;
}

Example 3 with ByteMatrix

use of com.google.zxing.qrcode.encoder.ByteMatrix in project zxing by zxing.

the class DataMatrixWriter method encodeLowLevel.

/**
   * Encode the given symbol info to a bit matrix.
   *
   * @param placement  The DataMatrix placement.
   * @param symbolInfo The symbol info to encode.
   * @return The bit matrix generated.
   */
private static BitMatrix encodeLowLevel(DefaultPlacement placement, SymbolInfo symbolInfo) {
    int symbolWidth = symbolInfo.getSymbolDataWidth();
    int symbolHeight = symbolInfo.getSymbolDataHeight();
    ByteMatrix matrix = new ByteMatrix(symbolInfo.getSymbolWidth(), symbolInfo.getSymbolHeight());
    int matrixY = 0;
    for (int y = 0; y < symbolHeight; y++) {
        // Fill the top edge with alternate 0 / 1
        int matrixX;
        if ((y % symbolInfo.matrixHeight) == 0) {
            matrixX = 0;
            for (int x = 0; x < symbolInfo.getSymbolWidth(); x++) {
                matrix.set(matrixX, matrixY, (x % 2) == 0);
                matrixX++;
            }
            matrixY++;
        }
        matrixX = 0;
        for (int x = 0; x < symbolWidth; x++) {
            // Fill the right edge with full 1
            if ((x % symbolInfo.matrixWidth) == 0) {
                matrix.set(matrixX, matrixY, true);
                matrixX++;
            }
            matrix.set(matrixX, matrixY, placement.getBit(x, y));
            matrixX++;
            // Fill the right edge with alternate 0 / 1
            if ((x % symbolInfo.matrixWidth) == symbolInfo.matrixWidth - 1) {
                matrix.set(matrixX, matrixY, (y % 2) == 0);
                matrixX++;
            }
        }
        matrixY++;
        // Fill the bottom edge with full 1
        if ((y % symbolInfo.matrixHeight) == symbolInfo.matrixHeight - 1) {
            matrixX = 0;
            for (int x = 0; x < symbolInfo.getSymbolWidth(); x++) {
                matrix.set(matrixX, matrixY, true);
                matrixX++;
            }
            matrixY++;
        }
    }
    return convertByteMatrixToBitMatrix(matrix);
}

Example 4 with ByteMatrix

use of com.google.zxing.qrcode.encoder.ByteMatrix in project weex-example by KalicyZhou.

the class DataMatrixWriter method encodeLowLevel.

/**
   * Encode the given symbol info to a bit matrix.
   *
   * @param placement  The DataMatrix placement.
   * @param symbolInfo The symbol info to encode.
   * @return The bit matrix generated.
   */
private static BitMatrix encodeLowLevel(DefaultPlacement placement, SymbolInfo symbolInfo) {
    int symbolWidth = symbolInfo.getSymbolDataWidth();
    int symbolHeight = symbolInfo.getSymbolDataHeight();
    ByteMatrix matrix = new ByteMatrix(symbolInfo.getSymbolWidth(), symbolInfo.getSymbolHeight());
    int matrixY = 0;
    for (int y = 0; y < symbolHeight; y++) {
        // Fill the top edge with alternate 0 / 1
        int matrixX;
        if ((y % symbolInfo.matrixHeight) == 0) {
            matrixX = 0;
            for (int x = 0; x < symbolInfo.getSymbolWidth(); x++) {
                matrix.set(matrixX, matrixY, (x % 2) == 0);
                matrixX++;
            }
            matrixY++;
        }
        matrixX = 0;
        for (int x = 0; x < symbolWidth; x++) {
            // Fill the right edge with full 1
            if ((x % symbolInfo.matrixWidth) == 0) {
                matrix.set(matrixX, matrixY, true);
                matrixX++;
            }
            matrix.set(matrixX, matrixY, placement.getBit(x, y));
            matrixX++;
            // Fill the right edge with alternate 0 / 1
            if ((x % symbolInfo.matrixWidth) == symbolInfo.matrixWidth - 1) {
                matrix.set(matrixX, matrixY, (y % 2) == 0);
                matrixX++;
            }
        }
        matrixY++;
        // Fill the bottom edge with full 1
        if ((y % symbolInfo.matrixHeight) == symbolInfo.matrixHeight - 1) {
            matrixX = 0;
            for (int x = 0; x < symbolInfo.getSymbolWidth(); x++) {
                matrix.set(matrixX, matrixY, true);
                matrixX++;
            }
            matrixY++;
        }
    }
    return convertByteMatrixToBitMatrix(matrix);
}