/*******************************************************************************
* Copyright 2014 by E-Government Innovation Center EGIZ, Graz, Austria
* PDF-AS has been contracted by the E-Government Innovation Center EGIZ, a
* joint initiative of the Federal Chancellery Austria and Graz University of
* Technology.
*
* Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
* the European Commission - subsequent versions of the EUPL (the "Licence");
* You may not use this work except in compliance with the Licence.
* You may obtain a copy of the Licence at:
* http://www.osor.eu/eupl/
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the Licence is distributed on an "AS IS" basis,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the Licence for the specific language governing permissions and
* limitations under the Licence.
*
* This product combines work with different licenses. See the "NOTICE" text
* file for details on the various modules and licenses.
* The "NOTICE" text file is part of the distribution. Any derivative works
* that you distribute must include a readable copy of the "NOTICE" text file.
******************************************************************************/
/**
* Copyright 2006 by Know-Center, Graz, Austria
* PDF-AS has been contracted by the E-Government Innovation Center EGIZ, a
* joint initiative of the Federal Chancellery Austria and Graz University of
* Technology.
*
* Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
* the European Commission - subsequent versions of the EUPL (the "Licence");
* You may not use this work except in compliance with the Licence.
* You may obtain a copy of the Licence at:
* http://www.osor.eu/eupl/
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the Licence is distributed on an "AS IS" basis,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the Licence for the specific language governing permissions and
* limitations under the Licence.
*
* This product combines work with different licenses. See the "NOTICE" text
* file for details on the various modules and licenses.
* The "NOTICE" text file is part of the distribution. Any derivative works
* that you distribute must include a readable copy of the "NOTICE" text file.
*/
package at.knowcenter.wag.egov.egiz.pdf.operator.path.construction;
import at.knowcenter.wag.egov.egiz.pdf.PDFPage;
import at.knowcenter.wag.egov.egiz.pdf.operator.path.PathConstructionOperatorProcessor;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.pdfbox.cos.COSBase;
import org.apache.pdfbox.cos.COSNumber;
import org.apache.pdfbox.util.PDFOperator;
import java.awt.geom.Point2D;
import java.io.IOException;
import java.util.List;
/**
* Append a cubic Bezier curve to the current path. The curve shall extend from the current point to the point (x3, y3),
* using (x1, y1) and (x3, y3) as the Bezier control points (see 8.5.2.2, "Cubic Bezier Curves"). The new current point
* shall be (x3, y3).
*
* @see "PDF 1.7 specification, Section 8.5.2 'Path Construction Operators'"
* @author PdfBox, modified by Datentechnik Innovation GmbH
*/
public class CurveToReplicateFinalPoint extends PathConstructionOperatorProcessor {
private Log log = LogFactory.getLog(getClass());
public CurveToReplicateFinalPoint(PDFPage context) {
super(context);
}
@Override
public void process(PDFOperator operator, List operands) throws IOException {
try {
PDFPage pdfPage = (PDFPage) context;
COSNumber x1 = (COSNumber) operands.get(0);
COSNumber y1 = (COSNumber) operands.get(1);
COSNumber x3 = (COSNumber) operands.get(2);
COSNumber y3 = (COSNumber) operands.get(3);
Point2D p1 = transform(x1.doubleValue(), y1.doubleValue());
Point2D p3 = transform(x3.doubleValue(), y3.doubleValue());
pdfPage.getCurrentPath().curveTo(
(float) p1.getX(), (float) p1.getY(),
(float) p3.getX(), (float) p3.getY(),
(float) p3.getX(), (float) p3.getY()
);
if (log.isTraceEnabled()) {
log.trace("Appending cubic Bezier curve with x1:" + p1.getX() + ",y1:" + p1.getY() + ", x3:"
+ p3.getX() + ",y3:" + p3.getY());
}
} catch (Exception e) {
log.warn("Error processing operator 'y'.", e);
}
}
}