http://xmlgraphics.apache.org/fop/: Apache FOP (Formatting Objects Processor) is the world's first print formatter driven by XSL formatting objects (XSL-FO) and the world's first output independent formatter. It is a Java application that reads a formatting object (FO) tree and renders the resulting pages to a specified output. Output formats currently supported include PDF, PCL, PS, AFP, TIFF, PNG, SVG, XML (area tree representation), Print, AWT and TXT. The primary output target is PDF. (Apache Software Foundation) 
/*
 * 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.
 */

/* $Id: Java2DGraphics2DAdapter.java 1502902 2013-07-13 22:26:09Z lbernardo $ */

package org.apache.fop.render.java2d;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics2D;
import java.awt.geom.AffineTransform;
import java.awt.geom.Rectangle2D;
import java.io.IOException;

import org.apache.xmlgraphics.java2d.Graphics2DImagePainter;

import org.apache.fop.render.AbstractGraphics2DAdapter;
import org.apache.fop.render.RendererContext;


Graphics2DAdapter implementation for Java2D.

/**
 * Graphics2DAdapter implementation for Java2D.
 */
public class Java2DGraphics2DAdapter extends AbstractGraphics2DAdapter {

    
{@inheritDoc} 
/** {@inheritDoc} */
    public void paintImage(Graphics2DImagePainter painter,
            RendererContext context,
            int x, int y, int width, int height) throws IOException {

        float fwidth = width / 1000f;
        float fheight = height / 1000f;
        float fx = x / 1000f;
        float fy = y / 1000f;

        // get the 'width' and 'height' attributes of the SVG document
        Dimension dim = painter.getImageSize();
        float imw = (float)dim.getWidth() / 1000f;
        float imh = (float)dim.getHeight() / 1000f;

        float sx = fwidth / imw;
        float sy = fheight / imh;

        Java2DRenderer renderer = (Java2DRenderer)context.getRenderer();
        Java2DGraphicsState state = renderer.state;

        //Create copy and paint on that
        Graphics2D g2d = (Graphics2D)state.getGraph().create();
        g2d.setColor(Color.black);
        g2d.setBackground(Color.black);

        //TODO Clip to the image area.

        // transform so that the coordinates (0,0) is from the top left
        // and positive is down and to the right. (0,0) is where the
        // viewBox puts it.
        g2d.translate(fx, fy);
        AffineTransform at = AffineTransform.getScaleInstance(sx, sy);
        if (!at.isIdentity()) {
            g2d.transform(at);
        }

        Rectangle2D area = new Rectangle2D.Double(0.0, 0.0, imw, imh);
        painter.paint(g2d, area);

        g2d.dispose();
    }

}