/*
* 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.engine.export;
import java.awt.Dimension;
import java.io.ByteArrayInputStream;
import net.sf.jasperreports.components.html.HtmlComponent;
import net.sf.jasperreports.engine.JRComponentElement;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JRGenericPrintElement;
import net.sf.jasperreports.engine.JRPrintImage;
import net.sf.jasperreports.engine.base.JRBasePrintImage;
import net.sf.jasperreports.engine.type.HorizontalAlignEnum;
import net.sf.jasperreports.engine.type.ScaleImageEnum;
import net.sf.jasperreports.engine.type.VerticalAlignEnum;
import net.sf.jasperreports.engine.util.HtmlPrintElement;
import net.sf.jasperreports.engine.util.JRExpressionUtil;
import net.sf.jasperreports.renderers.FlyingSaucerXhtmlToImageRenderer;
import org.w3c.dom.Document;
import org.w3c.tidy.Tidy;
/**
* @author Narcis Marcu (narcism@users.sourceforge.net)
* @version $Id: FlyingSaucerHtmlPrintElement.java 4253 2011-03-14 15:26:36Z narcism $
*/
public class FlyingSaucerHtmlPrintElement implements HtmlPrintElement {
public FlyingSaucerHtmlPrintElement(){
}
public JRPrintImage createImageFromElement(JRGenericPrintElement element) throws JRException {
String htmlContent = (String) element.getParameterValue(HtmlPrintElement.PARAMETER_HTML_CONTENT);
String scaleType = (String) element.getParameterValue(HtmlPrintElement.PARAMETER_SCALE_TYPE);
String horizontalAlignment = (String) element.getParameterValue(HtmlPrintElement.PARAMETER_HORIZONTAL_ALIGN);
String verticalAlignment = (String) element.getParameterValue(HtmlPrintElement.PARAMETER_VERTICAL_ALIGN);
JRBasePrintImage printImage = new JRBasePrintImage(element.getDefaultStyleProvider());
printImage.setStyle(element.getStyle());
printImage.setMode(element.getModeValue());
printImage.setBackcolor(element.getBackcolor());
printImage.setForecolor(element.getForecolor());
printImage.setX(element.getX());
printImage.setY(element.getY());
printImage.setWidth(element.getWidth());
printImage.setScaleImage(ScaleImageEnum.getByName(scaleType));
printImage.setHorizontalAlignment(HorizontalAlignEnum.getByName(horizontalAlignment));
printImage.setVerticalAlignment(VerticalAlignEnum.getByName(verticalAlignment));
FlyingSaucerXhtmlToImageRenderer renderer = new FlyingSaucerXhtmlToImageRenderer(getHtmlDocument(htmlContent), element.getWidth(), element.getHeight());
printImage.setRenderer(renderer);
if (printImage.getScaleImageValue() == ScaleImageEnum.REAL_HEIGHT || printImage.getScaleImageValue() == ScaleImageEnum.REAL_SIZE) {
printImage.setHeight(renderer.getComputedSize().height);
} else {
printImage.setHeight(element.getHeight());
}
return printImage;
}
public JRPrintImage createImageFromComponentElement(JRComponentElement componentElement) throws JRException {
HtmlComponent html = (HtmlComponent) componentElement.getComponent();
String htmlContent = "";
if (html.getHtmlContentExpression() != null) {
htmlContent = JRExpressionUtil.getExpressionText(html.getHtmlContentExpression());
}
JRBasePrintImage printImage = new JRBasePrintImage(componentElement.getDefaultStyleProvider());
printImage.setStyle(componentElement.getStyle());
printImage.setMode(componentElement.getModeValue());
printImage.setBackcolor(componentElement.getBackcolor());
printImage.setForecolor(componentElement.getForecolor());
printImage.setX(componentElement.getX());
printImage.setY(componentElement.getY());
printImage.setWidth(componentElement.getWidth());
printImage.setHeight(componentElement.getHeight());
printImage.setScaleImage(html.getScaleType());
printImage.setHorizontalAlignment(html.getHorizontalAlign());
printImage.setVerticalAlignment(html.getVerticalAlign());
FlyingSaucerXhtmlToImageRenderer renderer = new FlyingSaucerXhtmlToImageRenderer(getHtmlDocument(htmlContent), componentElement.getWidth(), componentElement.getHeight());
printImage.setRenderer(renderer);
return printImage;
}
public Dimension getComputedSize(JRGenericPrintElement element) {
String htmlContent = (String) element.getParameterValue(HtmlPrintElement.PARAMETER_HTML_CONTENT);
FlyingSaucerXhtmlToImageRenderer renderer = new FlyingSaucerXhtmlToImageRenderer(getHtmlDocument(htmlContent), element.getWidth(), element.getHeight());
return renderer.getComputedSize();
}
private Document getHtmlDocument(String htmlContent) {
StringBuffer buf = new StringBuffer();
buf.append("<html>");
buf.append("<head><style language='text/css'>");
buf.append("@page{ margin: 0; }");
buf.append("body{ margin:0;}");
buf.append("</style></head>");
buf.append("<body>");
buf.append(htmlContent);
buf.append("</body>");
buf.append("</html>");
Tidy tidy = new Tidy();
tidy.setXHTML(true);
tidy.setQuiet(true);
tidy.setShowWarnings(false);
return tidy.parseDOM(new ByteArrayInputStream(buf.toString().getBytes()), null);
}
}