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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * Copyright 2000, 2010 Oracle and/or its affiliates.
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 * OpenOffice.org - a multi-platform office productivity suite
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
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 * version 3 along with OpenOffice.org.  If not, see
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package com.sun.star.report.pentaho.parser.office;

import com.sun.star.report.pentaho.OfficeNamespaces;
import com.sun.star.report.pentaho.model.FontFaceDeclsSection;
import com.sun.star.report.pentaho.model.FontFaceElement;
import com.sun.star.report.pentaho.parser.ElementReadHandler;
import com.sun.star.report.pentaho.parser.style.FontFaceReadHandler;

import java.util.ArrayList;
import java.util.List;

import org.jfree.report.structure.Element;

import org.pentaho.reporting.libraries.xmlns.parser.XmlReadHandler;

import org.xml.sax.Attributes;
import org.xml.sax.SAXException;


/**
 * Reads the font-face declarations section. This one can only contain
 * font-face elements.
 *
 * @author Thomas Morgner
 * @since 13.03.2007
 */
public class FontFaceDeclsReadHandler extends ElementReadHandler
{

    private final FontFaceDeclsSection fontFaceDecls;
    private final List fontFaceReadHandlers;

    public FontFaceDeclsReadHandler(final FontFaceDeclsSection fontFaceDecls)
    {
        this.fontFaceDecls = fontFaceDecls;
        this.fontFaceReadHandlers = new ArrayList();
    }

    public FontFaceDeclsSection getFontFaceDecls()
    {
        return fontFaceDecls;
    }

    /**
     * Returns the handler for a child element.
     *
     * @param tagName the tag name.
     * @param atts    the attributes.
     * @return the handler or null, if the tagname is invalid.
     *
     * @throws org.xml.sax.SAXException if there is a parsing error.
     */
    protected XmlReadHandler getHandlerForChild(final String uri,
            final String tagName,
            final Attributes atts)
            throws SAXException
    {
        if (!OfficeNamespaces.STYLE_NS.equals(uri))
        {
            return null;
        }

        if ("font-face".equals(tagName))
        {
            final FontFaceReadHandler frh = new FontFaceReadHandler();
            fontFaceReadHandlers.add(frh);
            return frh;
        }
        return null;
    }

    /**
     * Done parsing.
     *
     * @throws org.xml.sax.SAXException if there is a parsing error.
     */
    protected void doneParsing()
            throws SAXException
    {
        for (int i = 0; i < fontFaceReadHandlers.size(); i++)
        {
            final FontFaceReadHandler handler = (FontFaceReadHandler) fontFaceReadHandlers.get(i);
            fontFaceDecls.addFontFace((FontFaceElement) handler.getElement());
        }
    }

    public Element getElement()
    {
        return fontFaceDecls;
    }
}