Example usage for com.itextpdf.text.pdf.qrcode EncodeHintType ERROR_CORRECTION

Introduction

In this page you can find the example usage for com.itextpdf.text.pdf.qrcode EncodeHintType ERROR_CORRECTION.

Prototype

EncodeHintType ERROR_CORRECTION

To view the source code for com.itextpdf.text.pdf.qrcode EncodeHintType ERROR_CORRECTION.

Click Source Link

Document

Specifies what degree of error correction to use, for example in QR Codes (type Integer).

Usage

From source file:se.billes.pdf.renderer.model.QRCode.java

License:Open Source License

@SuppressWarnings("unchecked")
public void onRender(PdfContentByte cb) throws PdfRenderException {

    float[] positions = new BlockFactory().getBoundsInPs(this);

    try {/*from   w ww .  j a  v  a  2 s . c  o m*/
        @SuppressWarnings("rawtypes")
        Hashtable hintMap = new Hashtable();
        hintMap.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.L);
        PdfDocument req = getPage().getPdfDocument();
        QRCodeWriter qrCodeWriter = new QRCodeWriter();
        BitMatrix byteMatrix = qrCodeWriter.encode(getText(), BarcodeFormat.QR_CODE, (int) (positions[2]),
                (int) (positions[3]), hintMap);
        int matrixWidth = byteMatrix.getWidth();
        int matrixHeight = byteMatrix.getHeight();
        float pageHeight = req.getSize()[1];
        float top = getPosition()[1];

        if (getPage().getPdfDocument().getCutmarks() != null) {
            pageHeight += SizeFactory.CUT_MARK * 2;
            top += SizeFactory.CUT_MARK;
        }

        cb.setColorFill(getBaseColor());
        float pageHeightInPs = SizeFactory.millimetersToPostscriptPoints(pageHeight);
        float topInPs = SizeFactory.millimetersToPostscriptPoints(top);
        for (int i = byteMatrix.getTopLeftOnBit()[0]; i < matrixWidth; i++) {
            for (int j = byteMatrix.getTopLeftOnBit()[0]; j < matrixHeight; j++) {
                if (byteMatrix.get(i, j)) {

                    cb.rectangle(positions[0] + (i - byteMatrix.getTopLeftOnBit()[0]),
                            pageHeightInPs - ((topInPs + 1) + (j - byteMatrix.getTopLeftOnBit()[0])), 1, 1);
                }
            }
        }

        cb.fill();
        cb.setColorFill(new ColorFactory().getBlack());

    } catch (Exception e) {

    }
}

---