strokepath.java

非常有用的操作pdf文件的java源码

/**
 * Copyright (c) 2005, www.pdfbox.org
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 * 3. Neither the name of pdfbox; nor the names of its
 *    contributors may be used to endorse or promote products derived from this
 *    software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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package org.pdfbox.util.operator.pagedrawer;

import java.util.List;
import org.pdfbox.pdfviewer.PageDrawer;
import org.pdfbox.util.PDFOperator;

import java.awt.Graphics2D;
import java.awt.geom.GeneralPath;
import java.io.IOException;

/**
 * Implementation of content stream operator for page drawer.
 * 
 * @author <a href="mailto:[e-mail]">Ben Litchfield</a>
 * @version $Revision: 1.2 $
 */
public class StrokePath extends org.pdfbox.util.operator.SetLineWidth
{

    /**
     * S stroke the path.
     * @param operator The operator that is being executed.
     * @param arguments List
     * 
     * @throws IOException If an error occurs while processing the font.
     */
    public void process(PDFOperator operator, List arguments) throws IOException
    {
        PageDrawer drawer = (PageDrawer)context;
        Graphics2D graphics = ((PageDrawer)context).getGraphics(); 
        graphics.setColor( drawer.getStrokingColor() );
        List subPaths = drawer.getLineSubPaths();
        for( int i=0; i<subPaths.size(); i++ )
        {
            GeneralPath subPath = (GeneralPath)subPaths.get( i );
            graphics.draw( subPath );
        }
        subPaths.clear();
        GeneralPath path = drawer.getLinePath();
        graphics.draw( path );
        path.reset();
    }
}