Group.java

/*
 * $Id: Group.java 341 2012-06-18 14:38:54Z blowagie $
 *
 * This file is part of the iText (R) project.
 * Copyright (c) 1998-2012 1T3XT BVBA
 * Authors: VVB, Bruno Lowagie, et al.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License version 3
 * as published by the Free Software Foundation with the addition of the
 * following permission added to Section 15 as permitted in Section 7(a):
 * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY 1T3XT,
 * 1T3XT DISCLAIMS THE WARRANTY OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
 *
 * 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 Affero General Public License for more details.
 * You should have received a copy of the GNU Affero General Public License
 * along with this program; if not, see http://www.gnu.org/licenses or write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA, 02110-1301 USA, or download the license from the following URL:
 * http://itextpdf.com/terms-of-use/
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License.
 *
 * In accordance with Section 7(b) of the GNU Affero General Public License,
 * a covered work must retain the producer line in every PDF that is created
 * or manipulated using iText.
 *
 * You can be released from the requirements of the license by purchasing
 * a commercial license. Buying such a license is mandatory as soon as you
 * develop commercial activities involving the iText software without
 * disclosing the source code of your own applications.
 * These activities include: offering paid services to customers as an ASP,
 * serving PDFs on the fly in a web application, shipping iText with a closed
 * source product.
 *
 * For more information, please contact iText Software Corp. at this
 * address: sales@itextpdf.com
 */
package com.itextpdf.tool.xml.svg.graphic;

import java.util.HashMap;
import java.util.List;
import java.util.Map;


import com.itextpdf.awt.geom.AffineTransform;
import com.itextpdf.text.Element;
import com.itextpdf.text.pdf.PdfContentByte;
import com.itextpdf.text.pdf.PdfTemplate;
import com.itextpdf.tool.xml.svg.tags.Graphic;


public class Group extends Graphic {
	final List<Element> list;
	final float width, height, x, y;
	final boolean applyCSSToElements;
	
	public Group(List<Element> list, float x, float y, float width, float height, Map<String, String> css, boolean applyCSSToElements) {
		super(css);
		this.list = list;
		this.width = width;
		this.height = height;
		this.x = x;
		this.y = y;
		this.applyCSSToElements = applyCSSToElements;
	}	
	
	@Override
	public void draw(PdfContentByte cb) {
		//TODO if width and height not know: what to do
		//PdfTemplate template = cb.createTemplate(this.width, this.height);		
		PdfTemplate template = cb.createTemplate(500, 500);
		//draw the list of elements on the new template
		for (Element elem : this.list){
			Graphic graphic = (Graphic) elem;
			
			if(applyCSSToElements){
				graphic.draw(template, getCombinedCss(graphic.getCss(), getCss()));
			}else {
				graphic.draw(template, graphic.getCss());
			}
		}
		//add the template at the x, y position
		cb.concatCTM(AffineTransform.getTranslateInstance(this.x, this.y));
		
		cb.add(template);
	}
	
	private Map<String, String> getCombinedCss(Map<String, String> element, Map<String, String> parent){
		Map<String, String> result = new HashMap<String, String>();
		result.putAll(parent);
		result.putAll(element);
		return result;
	}
}