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Free Java Reporting Library
/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2023 Cloud Software Group, Inc. All rights reserved.
* http://www.jaspersoft.com
*
* Unless you have purchased a commercial license agreement from Jaspersoft,
* the following license terms apply:
*
* This program is part of JasperReports.
*
* JasperReports is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* JasperReports 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with JasperReports. If not, see .
*/
package net.sf.jasperreports.engine.export;
import java.awt.font.GlyphVector;
import java.awt.font.LineBreakMeasurer;
import java.awt.font.TextLayout;
import java.text.AttributedCharacterIterator;
import java.util.Locale;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfDictionary;
import com.lowagie.text.pdf.PdfName;
import com.lowagie.text.pdf.PdfObject;
import com.lowagie.text.pdf.PdfString;
import net.sf.jasperreports.engine.JRPrintText;
import net.sf.jasperreports.engine.JRRuntimeException;
import net.sf.jasperreports.engine.JasperReportsContext;
import net.sf.jasperreports.engine.util.JRStyledText;
import net.sf.jasperreports.export.pdf.PdfProducer;
import net.sf.jasperreports.export.pdf.classic.ClassicPdfProducer;
/**
* @author Lucian Chirita ([email protected])
*/
public class PdfGlyphRenderer extends AbstractPdfTextRenderer
{
private static final Log log = LogFactory.getLog(PdfGlyphRenderer.class);
private static final boolean PATCHED_LIBRARY;
static
{
//TODO not actually needed with OpenPDF
PATCHED_LIBRARY = determinePatchedLibrary();
}
private static boolean determinePatchedLibrary()
{
try
{
PdfContentByte.class.getMethod("showText", GlyphVector.class);
return true;
}
catch (NoSuchMethodException e)
{
log.warn("Unpatched PDF library found, cannot use glyph rendering");
return false;
}
catch (SecurityException e)
{
throw new JRRuntimeException(e);
}
}
public static boolean supported()
{
return PATCHED_LIBRARY;
}
private ClassicPdfProducer classicPdfProducer;
private PdfContentByte pdfContentByte;
private boolean addActualText;
private PdfGlyphGraphics2D pdfGraphics2D;
/**
* @deprecated Replaced by {@link #PdfGlyphRenderer(JasperReportsContext, boolean, boolean, boolean, boolean)}.
*/
public PdfGlyphRenderer(
JasperReportsContext jasperReportsContext,
boolean ignoreMissingFont,
boolean addActualText
)
{
this(
jasperReportsContext,
ignoreMissingFont,
true,
false,
addActualText
);
}
public PdfGlyphRenderer(
JasperReportsContext jasperReportsContext,
boolean ignoreMissingFont,
boolean defaultIndentFirstLine,
boolean defaultJustifyLastLine,
boolean addActualText
)
{
super(
jasperReportsContext,
ignoreMissingFont,
defaultIndentFirstLine,
defaultJustifyLastLine
);
this.addActualText = addActualText;
}
@Override
public void initialize(
JRPdfExporter pdfExporter,
PdfProducer pdfProducer,
JRPdfExporterTagHelper tagHelper,
JRPrintText text,
JRStyledText styledText,
int offsetX,
int offsetY
)
{
if (!(pdfProducer instanceof ClassicPdfProducer))
{
throw new IllegalArgumentException("Only ClassicPdfProducer is supported");
}
super.initialize(pdfExporter, pdfProducer, tagHelper, text, styledText, offsetX, offsetY);
classicPdfProducer = (ClassicPdfProducer) pdfProducer;
pdfContentByte = classicPdfProducer.getPdfContentByte();
}
@Override
public void render()
{
Locale locale = pdfExporter.getTextLocale(text);
pdfGraphics2D = new PdfGlyphGraphics2D(pdfContentByte, pdfExporter, classicPdfProducer, locale);
boolean addText = addActualText && !classicPdfProducer.getContext().isTagged();
if (addText)
{
PdfDictionary markedContentProps = new PdfDictionary();
markedContentProps.put(PdfName.ACTUALTEXT, new PdfString(allText, PdfObject.TEXT_UNICODE));
pdfContentByte.beginMarkedContentSequence(PdfName.SPAN, markedContentProps, true);
}
super.render();
if (addText)
{
pdfContentByte.endMarkedContentSequence();
}
pdfGraphics2D.dispose();
}
@Override
public void draw()
{
if (bulletChunk != null)
{
AttributedCharacterIterator bulletIterator = bulletChunk.getIterator();
LineBreakMeasurer lineMeasurer = new LineBreakMeasurer(bulletIterator, getFontRenderContext());//grx.getFontRenderContext()
TextLayout bulletLayout =
lineMeasurer.nextLayout(
1000,
bulletIterator.getEndIndex(),
true
);
bulletLayout.draw(
pdfGraphics2D,
x + drawPosX - bulletLayout.getVisibleAdvance() - 10,
y + topPadding + verticalAlignOffset + drawPosY
);
}
TabSegment segment = segments.get(segmentIndex);
segment.layout.draw(
pdfGraphics2D,
x + drawPosX,// + leftPadding,
y + topPadding + verticalAlignOffset + drawPosY
);
return;
}
@Override
public boolean addActualText()
{
return addActualText;
}
}