/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2009 Jaspersoft Corporation. All rights reserved.
* http://www.jaspersoft.com
*
* Unless you have purchased a commercial license agreement from Jaspersoft,
* the following license terms apply:
*
* This program is part of JasperReports.
*
* JasperReports 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 3 of the License, or
* (at your option) any later version.
*
* JasperReports 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 JasperReports. If not, see <http://www.gnu.org/licenses/>.
*/
package net.sf.jasperreports.components.ofc;
import net.sf.jasperreports.engine.JRComponentElement;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JRGenericElementType;
import net.sf.jasperreports.engine.JRGenericPrintElement;
import net.sf.jasperreports.engine.JRPrintElement;
import net.sf.jasperreports.engine.component.BaseFillComponent;
import net.sf.jasperreports.engine.component.FillPrepareResult;
import net.sf.jasperreports.engine.fill.JRFillCloneFactory;
import net.sf.jasperreports.engine.fill.JRFillCloneable;
import net.sf.jasperreports.engine.fill.JRFillObjectFactory;
import net.sf.jasperreports.engine.fill.JRTemplateGenericElement;
import net.sf.jasperreports.engine.fill.JRTemplateGenericPrintElement;
import net.sf.jasperreports.engine.type.EvaluationTimeEnum;
/**
* @author Lucian Chirita (lucianc@users.sourceforge.net)
* @version $Id: FillBarChart.java 3031 2009-08-27 11:14:57Z teodord $
*/
public class FillBarChart extends BaseFillComponent implements JRFillCloneable
{
public static final JRGenericElementType CHART_PRINT_TYPE =
new JRGenericElementType("http://jasperreports.sourceforge.net/openflashchart", "chart");
private final BarChartComponent chart;
private final FillBarDataset dataset;
private String title;
public FillBarChart(BarChartComponent chart, JRFillObjectFactory factory)
{
this.chart = chart;
this.dataset = new FillBarDataset(chart.getDataset(), factory);
factory.registerElementDataset(this.dataset);
}
protected boolean isEvaluateNow()
{
return chart.getEvaluationTime() == EvaluationTimeEnum.NOW;
}
public void evaluate(byte evaluation) throws JRException
{
if (isEvaluateNow())
{
evaluateChart(evaluation);
}
}
protected void evaluateChart(byte evaluation) throws JRException
{
title = (String) fillContext.evaluate(chart.getTitleExpression(), evaluation);
dataset.evaluateDatasetRun(evaluation);
}
public JRPrintElement fill()
{
JRComponentElement element = fillContext.getComponentElement();
JRTemplateGenericElement template = new JRTemplateGenericElement(
fillContext.getElementOrigin(),
fillContext.getDefaultStyleProvider(),
CHART_PRINT_TYPE);
JRTemplateGenericPrintElement printElement = new JRTemplateGenericPrintElement(template);
printElement.setX(element.getX());
printElement.setY(fillContext.getElementPrintY());
printElement.setWidth(element.getWidth());
printElement.setHeight(element.getHeight());
if (isEvaluateNow())
{
copy(printElement);
}
else
{
fillContext.registerDelayedEvaluation(printElement,
chart.getEvaluationTime(), chart.getEvaluationGroup());
}
return printElement;
}
public FillPrepareResult prepare(int availableHeight)
{
return FillPrepareResult.PRINT_NO_STRETCH;
}
public JRFillCloneable createClone(JRFillCloneFactory factory)
{
throw new UnsupportedOperationException();
}
public void evaluateDelayedElement(JRPrintElement element, byte evaluation) throws JRException
{
evaluateChart(evaluation);
copy((JRGenericPrintElement) element);
}
protected void copy(JRGenericPrintElement printElement)
{
dataset.finishDataset();
String chartData = ChartDataGenerator.instance().generateBarChart(title, dataset);
printElement.setParameterValue(ChartHtmlHandler.PARAMETER_CHART_DATA, chartData);
}
}