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/*
* Copyright 2002 by Paulo Soares.
*
*
* The Original Code is 'iText, a free JAVA-PDF library'.
*
* The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
* the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
* All Rights Reserved.
* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
* are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
*
* Contributor(s): all the names of the contributors are added in the source code
* where applicable.
*
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*
* If you didn't download this code from the following link, you should check if
* you aren't using an obsolete version:
* http://www.lowagie.com/iText/
*/
package com.lowagie.text.pdf;
import com.lowagie.text.Rectangle;
import java.awt.Color;
/** This class takes 2 barcodes, an EAN/UPC and a supplemental
* and creates a single barcode with both combined in the
* expected layout. The UPC/EAN should have a positive text
* baseline and the supplemental a negative one (in the supplemental
* the text is on the top of the barcode.<p>
* The default parameters are:
* <pre>
*n = 8; // horizontal distance between the two barcodes
* </pre>
*
* @author Paulo Soares (psoares@consiste.pt)
*/
public class BarcodeEANSUPP extends Barcode{
/** The barcode with the EAN/UPC.
*/
protected Barcode ean;
/** The barcode with the supplemental.
*/
protected Barcode supp;
/** Creates new combined barcode.
* @param ean the EAN/UPC barcode
* @param supp the supplemental barcode
*/
public BarcodeEANSUPP(Barcode ean, Barcode supp) {
n = 8; // horizontal distance between the two barcodes
this.ean = ean;
this.supp = supp;
}
/** Gets the maximum area that the barcode and the text, if
* any, will occupy. The lower left corner is always (0, 0).
* @return the size the barcode occupies.
*/
public Rectangle getBarcodeSize() {
Rectangle rect = ean.getBarcodeSize();
rect.setRight(rect.width() + supp.getBarcodeSize().width() + n);
return rect;
}
/** Places the barcode in a <CODE>PdfContentByte</CODE>. The
* barcode is always placed at coodinates (0, 0). Use the
* translation matrix to move it elsewhere.<p>
* The bars and text are written in the following colors:<p>
* <P><TABLE BORDER=1>
* <TR>
* <TH><P><CODE>barColor</CODE></TH>
* <TH><P><CODE>textColor</CODE></TH>
* <TH><P>Result</TH>
* </TR>
* <TR>
* <TD><P><CODE>null</CODE></TD>
* <TD><P><CODE>null</CODE></TD>
* <TD><P>bars and text painted with current fill color</TD>
* </TR>
* <TR>
* <TD><P><CODE>barColor</CODE></TD>
* <TD><P><CODE>null</CODE></TD>
* <TD><P>bars and text painted with <CODE>barColor</CODE></TD>
* </TR>
* <TR>
* <TD><P><CODE>null</CODE></TD>
* <TD><P><CODE>textColor</CODE></TD>
* <TD><P>bars painted with current color<br>text painted with <CODE>textColor</CODE></TD>
* </TR>
* <TR>
* <TD><P><CODE>barColor</CODE></TD>
* <TD><P><CODE>textColor</CODE></TD>
* <TD><P>bars painted with <CODE>barColor</CODE><br>text painted with <CODE>textColor</CODE></TD>
* </TR>
* </TABLE>
* @param cb the <CODE>PdfContentByte</CODE> where the barcode will be placed
* @param barColor the color of the bars. It can be <CODE>null</CODE>
* @param textColor the color of the text. It can be <CODE>null</CODE>
* @return the dimensions the barcode occupies
*/
public Rectangle placeBarcode(PdfContentByte cb, Color barColor, Color textColor) {
if (supp.getFont() != null)
supp.setBarHeight(ean.getBarHeight() + supp.getBaseline() - supp.getFont().getFontDescriptor(BaseFont.CAPHEIGHT, supp.getSize()));
else
supp.setBarHeight(ean.getBarHeight());
Rectangle eanR = ean.getBarcodeSize();
cb.saveState();
ean.placeBarcode(cb, barColor, textColor);
cb.restoreState();
cb.saveState();
cb.concatCTM(1, 0, 0, 1, eanR.width() + n, eanR.height() - ean.getBarHeight());
supp.placeBarcode(cb, barColor, textColor);
cb.restoreState();
return getBarcodeSize();
}
/** Creates a <CODE>java.awt.Image</CODE>. This image only
* contains the bars without any text.
* @param foreground the color of the bars
* @param background the color of the background
* @return the image
*/
public java.awt.Image createAwtImage(Color foreground, Color background) {
throw new UnsupportedOperationException("The two barcodes must be composed externally.");
}
}
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