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/*
This file is part of the iText (R) project.
Copyright (c) 1998-2022 iText Group NV
Authors: Bruno Lowagie, Paulo Soares, et al.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License version 3
as published by the Free Software Foundation with the addition of the
following permission added to Section 15 as permitted in Section 7(a):
FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
OF THIRD PARTY RIGHTS
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program; if not, see http://www.gnu.org/licenses or write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA, 02110-1301 USA, or download the license from the following URL:
http://itextpdf.com/terms-of-use/
The interactive user interfaces in modified source and object code versions
of this program must display Appropriate Legal Notices, as required under
Section 5 of the GNU Affero General Public License.
In accordance with Section 7(b) of the GNU Affero General Public License,
a covered work must retain the producer line in every PDF that is created
or manipulated using iText.
You can be released from the requirements of the license by purchasing
a commercial license. Buying such a license is mandatory as soon as you
develop commercial activities involving the iText software without
disclosing the source code of your own applications.
These activities include: offering paid services to customers as an ASP,
serving PDFs on the fly in a web application, shipping iText with a closed
source product.
For more information, please contact iText Software Corp. at this
address: [email protected]
*/
package com.itextpdf.barcodes;
import com.itextpdf.barcodes.qrcode.ByteMatrix;
import com.itextpdf.barcodes.qrcode.EncodeHintType;
import com.itextpdf.barcodes.qrcode.QRCodeWriter;
import com.itextpdf.barcodes.exceptions.WriterException;
import com.itextpdf.kernel.geom.Rectangle;
import com.itextpdf.kernel.pdf.canvas.PdfCanvas;
import com.itextpdf.kernel.colors.Color;
import com.itextpdf.kernel.pdf.PdfArray;
import com.itextpdf.kernel.pdf.PdfDocument;
import com.itextpdf.kernel.pdf.xobject.PdfFormXObject;
import java.util.Map;
/**
* A QRCode implementation based on the zxing code.
*/
public class BarcodeQRCode extends Barcode2D {
ByteMatrix bm;
/**
* modifiers to change the way the barcode is create.
**/
Map hints;
String code;
/**
* Creates the QR barcode.
*
* @param code the text to be encoded
* @param hints barcode hints. See #setHints for description.
*/
public BarcodeQRCode(String code, Map hints) {
this.code = code;
this.hints = hints;
regenerate();
}
/**
* Creates the QR barcode with default error correction level (ErrorCorrectionLevel.L)
* and default character set (ISO-8859-1).
*
* @param content the text to be encoded
*/
public BarcodeQRCode(String content) {
this(content, null);
}
public BarcodeQRCode() {
}
/**
* Gets the current data.
* @return the encoded data
*/
public String getCode() {
return code;
}
/**
* Sets the data to be encoded by the barcode. If not specified in hints otherwise, the character set should be ISO-8859-1.
* @param code The data to encode
*/
public void setCode(String code) {
this.code = code;
regenerate();
}
/**
* @return modifiers to change the way the barcode is created.
*/
public Map getHints() {
return hints;
}
/**
* @param hints modifiers to change the way the barcode is created. They can be EncodeHintType.ERROR_CORRECTION
* and EncodeHintType.CHARACTER_SET. For EncodeHintType.ERROR_CORRECTION the values can be ErrorCorrectionLevel.L, M, Q, H.
* For EncodeHintType.CHARACTER_SET the values are strings and can be Cp437, Shift_JIS and ISO-8859-1 to ISO-8859-16.
* You can also use UTF-8, but correct behaviour is not guaranteed as Unicode is not supported in QRCodes.
* The default value is ISO-8859-1.
*/
public void setHints(Map hints) {
this.hints = hints;
regenerate();
}
/**
* Regenerates barcode after changes in hints or code.
*/
public void regenerate() {
if (code != null) {
try {
QRCodeWriter qc = new QRCodeWriter();
bm = qc.encode(code, 1, 1, hints);
} catch (WriterException ex) {
throw new IllegalArgumentException(ex.getMessage(), ex.getCause());
}
}
}
/**
* Gets the size of the barcode grid
*/
@Override
public Rectangle getBarcodeSize() {
return new Rectangle(0, 0, bm.getWidth(), bm.getHeight());
}
/**
* Gets the barcode size
* @param moduleSize The module size
* @return The size of the barcode
*/
public Rectangle getBarcodeSize(float moduleSize) {
return new Rectangle(0, 0, bm.getWidth() * moduleSize, bm.getHeight() * moduleSize);
}
@Override
public Rectangle placeBarcode(PdfCanvas canvas, Color foreground) {
return placeBarcode(canvas, foreground, DEFAULT_MODULE_SIZE);
}
/**
* * Places the barcode in a PdfCanvas. The
* barcode is always placed at coordinates (0, 0). Use the
* translation matrix to move it elsewhere.
*
* @param canvas the PdfCanvas where the barcode will be placed
* @param foreground the foreground color. It can be null
* @param moduleSide the size of the square grid cell
* @return the dimensions the barcode occupies
*/
public Rectangle placeBarcode(PdfCanvas canvas, Color foreground, float moduleSide) {
int width = bm.getWidth();
int height = bm.getHeight();
byte[][] mt = bm.getArray();
if (foreground != null) {
canvas.setFillColor(foreground);
}
for (int y = 0; y < height; ++y) {
byte[] line = mt[y];
for (int x = 0; x < width; ++x) {
if (line[x] == 0) {
canvas.rectangle(x * moduleSide, (height - y - 1) * moduleSide, moduleSide, moduleSide);
}
}
}
canvas.fill();
return getBarcodeSize(moduleSide);
}
/**
* Creates a PdfFormXObject with the barcode.
*
* @param foreground the color of the pixels. It can be null
* @return the XObject.
*/
@Override
public PdfFormXObject createFormXObject(Color foreground, PdfDocument document) {
return createFormXObject(foreground, DEFAULT_MODULE_SIZE, document);
}
/**
* Creates a PdfFormXObject with the barcode.
*
* @param foreground The color of the pixels. It can be null
* @param moduleSize The size of the pixels.
* @param document The document
* @return the XObject.
*/
public PdfFormXObject createFormXObject(Color foreground, float moduleSize, PdfDocument document) {
PdfFormXObject xObject = new PdfFormXObject((Rectangle) null);
Rectangle rect = placeBarcode(new PdfCanvas(xObject, document), foreground, moduleSize);
xObject.setBBox(new PdfArray(rect));
return xObject;
}
}
