/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.pdfbox.util.operator.pagedrawer;
import java.awt.geom.Point2D;
import java.awt.geom.Rectangle2D;
import java.util.List;
import org.apache.pdfbox.cos.COSBase;
import org.apache.pdfbox.cos.COSNumber;
import org.apache.pdfbox.pdfviewer.PageDrawer;
import org.apache.pdfbox.util.PDFOperator;
import org.apache.pdfbox.util.operator.OperatorProcessor;
/**
* Implementation of content stream operator for page drawer.
*
* @author <a href="mailto:ben@benlitchfield.com">Ben Litchfield</a>
* @version $Revision: 1.3 $
*/
public class AppendRectangleToPath extends OperatorProcessor
{
/**
* process : re : append rectangle to path.
* @param operator The operator that is being executed.
* @param arguments List
*/
public void process(PDFOperator operator, List<COSBase> arguments)
{
PageDrawer drawer = (PageDrawer)context;
COSNumber x = (COSNumber)arguments.get( 0 );
COSNumber y = (COSNumber)arguments.get( 1 );
COSNumber w = (COSNumber)arguments.get( 2 );
COSNumber h = (COSNumber)arguments.get( 3 );
double x1 = x.floatValue();
double y1 = y.floatValue();
// create a pair of coordinates for the transformation
double x2 = w.floatValue()+x1;
double y2 = h.floatValue()+y1;
Point2D startCoords = drawer.transformedPoint(x1,y1);
Point2D endCoords = drawer.transformedPoint(x2,y2);
double width = endCoords.getX()-startCoords.getX();
double height = endCoords.getY()-startCoords.getY();
double xStart = startCoords.getX();
double yStart = startCoords.getY();
// we have to calculate the width and height from the two pairs of coordinates
// if the endCoords are above the startCoords we have to switch them
if (width < 0)
{
xStart += width;
width = -width;
}
if (height < 0)
{
yStart += height;
height = -height;
}
Rectangle2D rect = new Rectangle2D.Double(xStart, yStart, width, height);
drawer.getLinePath().append( rect, false );
}
}