http://xmlgraphics.apache.org/commons/: Apache XML Graphics Commons is a library that consists of several reusable components used by Apache Batik and Apache FOP. Many of these components can easily be used separately outside the domains of SVG and XSL-FO. (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: PSDocumentGraphics2D.java 1681108 2015-05-22 13:26:12Z ssteiner $ */

package org.apache.xmlgraphics.java2d.ps;

import java.io.IOException;
import java.io.OutputStream;

import org.apache.xmlgraphics.ps.DSCConstants;


This class is a wrapper for the PSGraphics2D that
is used to create a full document around the PostScript rendering from
PSGraphics2D.

See Also:
Version:$Id: PSDocumentGraphics2D.java 1681108 2015-05-22 13:26:12Z ssteiner $
/**
 * This class is a wrapper for the <tt>PSGraphics2D</tt> that
 * is used to create a full document around the PostScript rendering from
 * <tt>PSGraphics2D</tt>.
 *
 * @version $Id: PSDocumentGraphics2D.java 1681108 2015-05-22 13:26:12Z ssteiner $
 * @see org.apache.xmlgraphics.java2d.ps.PSGraphics2D
 *
 * Originally authored by Keiron Liddle.
 */
public class PSDocumentGraphics2D extends AbstractPSDocumentGraphics2D {

    
Create a new AbstractPSDocumentGraphics2D.
This is used to create a new PostScript document, the height,
width and output stream can be setup later.
For use by the transcoder which needs font information
for the bridge before the document size is known.
The resulting document is written to the stream after rendering.

Params:
  • textAsShapes – set this to true so that text will be rendered
using curves and not the font.
/**
     * Create a new AbstractPSDocumentGraphics2D.
     * This is used to create a new PostScript document, the height,
     * width and output stream can be setup later.
     * For use by the transcoder which needs font information
     * for the bridge before the document size is known.
     * The resulting document is written to the stream after rendering.
     *
     * @param textAsShapes set this to true so that text will be rendered
     * using curves and not the font.
     */
    public PSDocumentGraphics2D(boolean textAsShapes) {
        super(textAsShapes);
    }

    
Create a new AbstractPSDocumentGraphics2D.
This is used to create a new PostScript document of the given height
and width.
The resulting document is written to the stream after rendering.

Params:
  • textAsShapes – set this to true so that text will be rendered
using curves and not the font.
  • stream – the stream that the final document should be written to.
  • width – the width of the document
  • height – the height of the document
Throws:
  • IOException – an io exception if there is a problem
        writing to the output stream
/**
     * Create a new AbstractPSDocumentGraphics2D.
     * This is used to create a new PostScript document of the given height
     * and width.
     * The resulting document is written to the stream after rendering.
     *
     * @param textAsShapes set this to true so that text will be rendered
     * using curves and not the font.
     * @param stream the stream that the final document should be written to.
     * @param width the width of the document
     * @param height the height of the document
     * @throws IOException an io exception if there is a problem
     *         writing to the output stream
     */
    public PSDocumentGraphics2D(boolean textAsShapes, OutputStream stream,
                                 int width, int height) throws IOException {
        this(textAsShapes);
        setupDocument(stream, width, height);
    }

    
{@inheritDoc} 
/** {@inheritDoc} */
    public void nextPage() throws IOException {
        closePage();
    }

    
{@inheritDoc} 
/** {@inheritDoc} */
    protected void writeFileHeader() throws IOException {
        final Long pagewidth = (long) this.width;
        final Long pageheight = (long) this.height;

        //PostScript Header
        gen.writeln(DSCConstants.PS_ADOBE_30);
        gen.writeDSCComment(DSCConstants.CREATOR,
                    new String[] {"Apache XML Graphics Commons"
                        + ": PostScript Generator for Java2D"});
        gen.writeDSCComment(DSCConstants.CREATION_DATE,
                    new Object[] {new java.util.Date()});
        gen.writeDSCComment(DSCConstants.PAGES, DSCConstants.ATEND);
        gen.writeDSCComment(DSCConstants.BBOX, new Object[]
                {ZERO, ZERO, pagewidth, pageheight});
        gen.writeDSCComment(DSCConstants.LANGUAGE_LEVEL, gen.getPSLevel());
        gen.writeDSCComment(DSCConstants.END_COMMENTS);

        //Defaults
        gen.writeDSCComment(DSCConstants.BEGIN_DEFAULTS);
        gen.writeDSCComment(DSCConstants.END_DEFAULTS);

        //Prolog
        gen.writeDSCComment(DSCConstants.BEGIN_PROLOG);
        gen.writeDSCComment(DSCConstants.END_PROLOG);

        //Setup
        gen.writeDSCComment(DSCConstants.BEGIN_SETUP);
        writeProcSets();
        if (customTextHandler instanceof PSTextHandler) {
            ((PSTextHandler)customTextHandler).writeSetup();
        }
        gen.writeDSCComment(DSCConstants.END_SETUP);
    }

    
{@inheritDoc} 
/** {@inheritDoc} */
    protected void writePageHeader() throws IOException {
        Integer pageNumber = this.pagecount;
        gen.writeDSCComment(DSCConstants.PAGE, new Object[]
                {pageNumber.toString(), pageNumber});
        gen.writeDSCComment(DSCConstants.PAGE_BBOX, new Object[]
                {ZERO, ZERO, width, height});
        gen.writeDSCComment(DSCConstants.BEGIN_PAGE_SETUP);
        gen.writeln("<<");
        gen.writeln("/PageSize [" + width + " " + height + "]");
        gen.writeln("/ImagingBBox null");
        gen.writeln(">> setpagedevice");
        if (customTextHandler instanceof PSTextHandler) {
            ((PSTextHandler)customTextHandler).writePageSetup();
        }
    }

    
{@inheritDoc} 
/** {@inheritDoc} */
    protected void writePageTrailer() throws IOException {
        gen.showPage();
    }

    
This constructor supports the create method

Params:
  • g – the PostScript document graphics to make a copy of
/**
     * This constructor supports the create method
     * @param g the PostScript document graphics to make a copy of
     */
    public PSDocumentGraphics2D(PSDocumentGraphics2D g) {
        super(g);
    }

}