eu.europa.esig.dss.pdf.pdfbox.visible.nativedrawer.PdfBoxDSSFontMetrics Maven / Gradle / Ivy
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/**
* DSS - Digital Signature Services
* Copyright (C) 2015 European Commission, provided under the CEF programme
*
* This file is part of the "DSS - Digital Signature Services" project.
*
* This library 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 2.1 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
package eu.europa.esig.dss.pdf.pdfbox.visible.nativedrawer;
import eu.europa.esig.dss.model.DSSException;
import eu.europa.esig.dss.pdf.visible.AbstractDSSFontMetrics;
import org.apache.pdfbox.pdmodel.font.PDFont;
import java.io.IOException;
/**
* Contains font metrics for a PDFBox font
*/
public class PdfBoxDSSFontMetrics extends AbstractDSSFontMetrics {
/** PdfBox font */
private final PDFont pdFont;
/**
* Default constructor
*
* @param pdFont {@link PDFont}
*/
public PdfBoxDSSFontMetrics(PDFont pdFont) {
this.pdFont = pdFont;
}
@Override
public float getWidth(String str, float size) {
try {
return pdFont.getStringWidth(str) / 1000 * size;
} catch (IOException e) {
throw new DSSException(String.format("Unable to compute string width! Reason : %s", e.getMessage()), e);
}
}
@Override
public float getHeight(String str, float size) {
try {
return pdFont.getBoundingBox().getHeight() / 1000 * size;
} catch (IOException e) {
throw new DSSException(String.format("Unable to compute string height! Reason : %s", e.getMessage()), e);
}
}
}