/*
* 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) 2001 - 2013 Object Refinery Ltd, Pentaho Corporation and Contributors.. All rights reserved.
*/
package org.pentaho.reporting.engine.classic.core.filter.templates;
import java.net.URL;
import org.pentaho.reporting.engine.classic.core.ReportElement;
import org.pentaho.reporting.engine.classic.core.filter.DrawableLoadFilter;
import org.pentaho.reporting.engine.classic.core.filter.StaticDataSource;
import org.pentaho.reporting.engine.classic.core.filter.URLFilter;
import org.pentaho.reporting.engine.classic.core.function.ExpressionRuntime;
/**
* An image URL element template, which reads the image from a static URL.
*
* @author Thomas Morgner
*/
public class DrawableURLElementTemplate extends AbstractTemplate
{
/**
* The image load filter.
*/
private DrawableLoadFilter imageLoadFilter;
/**
* A static datasource.
*/
private StaticDataSource staticDataSource;
/**
* A URL filter.
*/
private URLFilter urlFilter;
/**
* Creates a new template.
*/
public DrawableURLElementTemplate()
{
staticDataSource = new StaticDataSource();
urlFilter = new URLFilter();
urlFilter.setDataSource(staticDataSource);
imageLoadFilter = new DrawableLoadFilter();
imageLoadFilter.setDataSource(urlFilter);
}
/**
* Sets the URL for the template.
*
* @param content the URL.
*/
public void setContent(final String content)
{
staticDataSource.setValue(content);
}
/**
* Returns the URL text for the template.
*
* @return The URL text.
*/
public String getContent()
{
return (String) (staticDataSource.getValue(null, null));
}
/**
* Returns the base URL.
*
* @return The URL.
*/
public URL getBaseURL()
{
return urlFilter.getBaseURL();
}
/**
* Sets the base URL.
*
* @param baseURL the URL.
*/
public void setBaseURL(final URL baseURL)
{
urlFilter.setBaseURL(baseURL);
}
/**
* Returns the current value for the data source.
*
* @param runtime the expression runtime that is used to evaluate formulas and expressions when computing the value of
* this filter.
* @param element
* @return the value.
*/
public Object getValue(final ExpressionRuntime runtime, final ReportElement element)
{
return imageLoadFilter.getValue(runtime, element);
}
/**
* Clones the template.
*
* @return the clone.
* @throws CloneNotSupportedException this should never happen.
*/
public DrawableURLElementTemplate clone()
throws CloneNotSupportedException
{
final DrawableURLElementTemplate template = (DrawableURLElementTemplate) super.clone();
template.imageLoadFilter = imageLoadFilter.clone();
template.urlFilter = (URLFilter) template.imageLoadFilter.getDataSource();
template.staticDataSource = (StaticDataSource) template.urlFilter.getDataSource();
return template;
}
}