net.sf.jasperreports.engine.export.PdfGlyphRenderer.java Source code

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Here is the source code for net.sf.jasperreports.engine.export.PdfGlyphRenderer.java

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/*
 * JasperReports - Free Java Reporting Library.
 * Copyright (C) 2001 - 2019 TIBCO Software 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 <http://www.gnu.org/licenses/>.
 */
package net.sf.jasperreports.engine.export;

import java.awt.font.GlyphVector;
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.JRRuntimeException;
import net.sf.jasperreports.engine.JasperReportsContext;

/**
 * @author Lucian Chirita (lucianc@users.sourceforge.net)
 */
public class PdfGlyphRenderer extends AbstractPdfTextRenderer {
    private static final Log log = LogFactory.getLog(PdfGlyphRenderer.class);

    private static final boolean PATCHED_ITEXT;
    static {
        PATCHED_ITEXT = determinePatchedItext();
    }

    private static boolean determinePatchedItext() {
        try {
            PdfContentByte.class.getMethod("showText", GlyphVector.class);
            return true;
        } catch (NoSuchMethodException e) {
            log.warn("Unpatched iText found, cannot use glyph rendering");
            return false;
        } catch (SecurityException e) {
            throw new JRRuntimeException(e);
        }
    }

    public static boolean supported() {
        return PATCHED_ITEXT;
    }

    private boolean addActualText;
    private PdfGlyphGraphics2D pdfGraphics2D;

    public PdfGlyphRenderer(JasperReportsContext jasperReportsContext, boolean ignoreMissingFont,
            boolean addActualText) {
        super(jasperReportsContext, ignoreMissingFont);
        this.addActualText = addActualText;
    }

    @Override
    public void render() {
        Locale locale = pdfExporter.getTextLocale(text);
        pdfGraphics2D = new PdfGlyphGraphics2D(pdfContentByte, pdfExporter, locale);
        super.render();
        pdfGraphics2D.dispose();
    }

    @Override
    public void draw() {
        if (addActualText) {
            PdfDictionary markedContentProps = new PdfDictionary();
            markedContentProps.put(PdfName.ACTUALTEXT, new PdfString(allText, PdfObject.TEXT_UNICODE));
            pdfContentByte.beginMarkedContentSequence(PdfName.SPAN, markedContentProps, true);
        }

        TabSegment segment = segments.get(segmentIndex);
        segment.layout.draw(pdfGraphics2D, x + drawPosX, // + leftPadding,
                y + topPadding + verticalAlignOffset + drawPosY);

        if (addActualText) {
            pdfContentByte.endMarkedContentSequence();
        }

        return;
    }

}