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/**
* ===========================================
* LibLayout : a free Java layouting library
* ===========================================
*
* Project Info: http://reporting.pentaho.org/liblayout/
*
* (C) Copyright 2006-2007, by Pentaho Corporation and Contributors.
*
* This library is free software; you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Foundation;
* either version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* ------------
* $Id: PdfOutputProcessor.java 6489 2008-11-28 14:53:40Z tmorgner $
* ------------
* (C) Copyright 2006-2007, by Pentaho Corporation.
*/
package org.jfree.layouting.modules.output.pdf;
import java.io.OutputStream;
import org.jfree.layouting.layouter.context.DocumentContext;
import org.jfree.layouting.output.OutputProcessorMetaData;
import org.jfree.layouting.output.pageable.AbstractPageableProcessor;
import org.jfree.layouting.output.pageable.AllPageFlowSelector;
import org.jfree.layouting.output.pageable.LogicalPageKey;
import org.jfree.layouting.output.pageable.PageFlowSelector;
import org.jfree.layouting.output.pageable.PhysicalPageKey;
import org.jfree.layouting.renderer.model.page.LogicalPageBox;
import org.jfree.layouting.renderer.model.page.PageGrid;
import org.pentaho.reporting.libraries.base.config.Configuration;
import org.pentaho.reporting.libraries.fonts.itext.ITextFontStorage;
import org.pentaho.reporting.libraries.fonts.encoding.EncodingRegistry;
/**
* A streaming target, which produces a PDF document.
*
* @author Thomas Morgner
*/
public class PdfOutputProcessor extends AbstractPageableProcessor
{
private PdfOutputProcessorMetaData metaData;
private PageFlowSelector flowSelector;
private OutputStream outputStream;
private PdfDocumentWriter writer;
public PdfOutputProcessor(final Configuration configuration,
final OutputStream outputStream)
{
super(configuration);
if (outputStream == null)
{
throw new NullPointerException();
}
this.outputStream = outputStream;
this.flowSelector = new AllPageFlowSelector();
// for the sake of simplicity, we use the AWT font registry for now.
// This is less accurate than using the iText fonts, but completing
// the TrueType registry or implementing an iText registry is too expensive
// for now.
final String encoding = configuration.getConfigProperty
("org.jfree.report.modules.output.pageable.pdf.Encoding", EncodingRegistry.getPlatformDefaultEncoding());
final ITextFontStorage fontStorage = new ITextFontStorage(PdfOutputModule.getFontRegistry(), encoding);
metaData = new PdfOutputProcessorMetaData(fontStorage);
}
public OutputProcessorMetaData getMetaData()
{
return metaData;
}
public PageFlowSelector getFlowSelector()
{
return flowSelector;
}
public void setFlowSelector(final PageFlowSelector flowSelector)
{
if (flowSelector == null)
{
throw new NullPointerException();
}
this.flowSelector = flowSelector;
}
public void processDocumentMetaData(final DocumentContext documentContext)
{
super.processDocumentMetaData(documentContext);
// we grab a few of them later ... like author, title etc
}
protected void processingContentFinished()
{
if (writer != null)
{
writer.close();
}
}
protected void processPhysicalPage(final PageGrid pageGrid,
final LogicalPageBox logicalPage,
final int row,
final int col,
final PhysicalPageKey pageKey)
{
try
{
if (writer == null)
{
writer = new PdfDocumentWriter(getConfiguration(), outputStream, metaData);
writer.open();
}
writer.processPhysicalPage(pageGrid, logicalPage, row, col, pageKey);
}
catch(Exception e)
{
e.printStackTrace();
}
}
protected void processLogicalPage(final LogicalPageKey key,
final LogicalPageBox logicalPage)
{
try
{
if (writer == null)
{
writer = new PdfDocumentWriter(getConfiguration(), outputStream, metaData);
writer.open();
}
writer.processLogicalPage(key, logicalPage);
}
catch(Exception e)
{
e.printStackTrace();
}
}
}
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