/*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program 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.
*
* Copyright (c) 2006 - 2013 Pentaho Corporation.. All rights reserved.
*/
package org.pentaho.reporting.engine.classic.core.modules.output.pageable.pdf.internal;
import java.awt.Color;
import java.io.IOException;
import com.lowagie.text.BadElementException;
import com.lowagie.text.Image;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.pentaho.reporting.engine.classic.core.DefaultImageReference;
import org.pentaho.reporting.engine.classic.core.InvalidReportStateException;
import org.pentaho.reporting.engine.classic.core.LocalImageContainer;
import org.pentaho.reporting.engine.classic.core.URLImageContainer;
import org.pentaho.reporting.engine.classic.core.layout.model.RenderableReplacedContentBox;
import org.pentaho.reporting.engine.classic.core.layout.output.OutputProcessorMetaData;
import org.pentaho.reporting.engine.classic.core.layout.output.RenderUtility;
import org.pentaho.reporting.engine.classic.core.util.geom.StrictBounds;
import org.pentaho.reporting.libraries.base.util.LFUMap;
import org.pentaho.reporting.libraries.resourceloader.ResourceData;
import org.pentaho.reporting.libraries.resourceloader.ResourceKey;
import org.pentaho.reporting.libraries.resourceloader.ResourceManager;
import org.pentaho.reporting.libraries.resourceloader.factory.drawable.DrawableWrapper;
public class PdfImageHandler
{
private static final Log logger = LogFactory.getLog(PdfImageHandler.class);
private LFUMap<ResourceKey, Image> imageCache;
private ResourceManager resourceManager;
private OutputProcessorMetaData metaData;
public PdfImageHandler(final OutputProcessorMetaData metaData,
final ResourceManager resourceManager,
final LFUMap<ResourceKey, Image> imageCache)
{
this.metaData = metaData;
this.resourceManager = resourceManager;
this.imageCache = imageCache;
}
public OutputProcessorMetaData getMetaData()
{
return metaData;
}
public ResourceManager getResourceManager()
{
return resourceManager;
}
public Image createImage(RenderableReplacedContentBox content)
{
try
{
final Object o = content.getContent().getRawObject();
if (o instanceof DrawableWrapper)
{
final DrawableWrapper drawableWrapper = (DrawableWrapper) o;
final StrictBounds bounds = new StrictBounds(content.getX(), content.getY(), content.getWidth(), content.getHeight());
DefaultImageReference imageContainer =
RenderUtility.createImageFromDrawable(drawableWrapper, bounds, content.getStyleSheet(), metaData);
return Image.getInstance(imageContainer.getImage(), Color.WHITE);
}
if (o instanceof java.awt.Image)
{
java.awt.Image img = (java.awt.Image) o;
return Image.getInstance(img, Color.WHITE);
}
if (o instanceof URLImageContainer)
{
final URLImageContainer imageContainer = (URLImageContainer) o;
final Image image = createImage(imageContainer);
if (image != null)
{
return image;
}
}
if (o instanceof LocalImageContainer)
{
final LocalImageContainer imageContainer = (LocalImageContainer) o;
final java.awt.Image image = imageContainer.getImage();
return Image.getInstance(image, Color.WHITE);
}
return null;
}
catch (IOException e)
{
logger.info("Unable to load image. Ignoring.", e);
}
catch (BadElementException e)
{
logger.info("Unable to load image. Ignoring.", e);
}
return null;
}
public Image createImage(URLImageContainer imageContainer)
{
if (!imageContainer.isLoadable())
{
logger.info("URL-image cannot be rendered, as it was declared to be not loadable: " +
imageContainer.getSourceURLString());
return null;
}
final ResourceKey resource = imageContainer.getResourceKey();
if (resource == null)
{
logger.info("URL-image cannot be rendered, as it did not return a valid URL.");
return null;
}
try
{
final ResourceManager resourceManager = getResourceManager();
final com.lowagie.text.Image instance;
final com.lowagie.text.Image maybeImage = imageCache.get(resource);
if (maybeImage != null)
{
instance = maybeImage;
}
else
{
final ResourceData data = resourceManager.load(resource);
instance = com.lowagie.text.Image.getInstance(data.getResource(resourceManager));
imageCache.put(resource, instance);
}
return instance;
}
catch (InvalidReportStateException re)
{
throw re;
}
catch (Exception e)
{
logger.info("URL-image cannot be rendered, as the image was not loadable.", e);
}
return null;
}
}