/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.cocoon.components.elementprocessor.impl.poi.hssf.elements;

import org.apache.cocoon.components.elementprocessor.types.BooleanConverter;
import org.apache.cocoon.components.elementprocessor.types.BooleanResult;

import java.io.IOException;

/**
 * No-op implementation of ElementProcessor to handle the "grid" tag
 *
 * This element has a single attribute, value, which is boolean.
 *
 *
 * @version $Id$
 */
public class EP_Grid extends BaseElementProcessor {
    private static final String _value_attribute = "value";
    private BooleanResult showGrid;

    /**
     * constructor
     */
    public EP_Grid() {
        super(null);
        showGrid = null;
    }

    /**
     * @return value
     *
     * @exception IOException if the value is malformed or missing
     */
    public boolean getValue() throws IOException {
        if (showGrid == null) {
            showGrid = BooleanConverter.extractBoolean(this.getValue(_value_attribute));
        }
        return showGrid.booleanValue();
    }

    /**
     * set whether or not the grid is printed for the worksheet
     * @exception IOException
     */
    public void endProcessing() throws IOException{
        this.getSheet().setPrintGridLines(this.getValue());
    }

}   // end public class EP_Grid