<?php
/**
 * File containing the ezcDocumentOdtPcssConverterTools class.
 *
 * 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 Document
 * @version //autogen//
 * @license http://www.apache.org/licenses/LICENSE-2.0 Apache License, Version 2.0
 * @access private
 */

/**
 * Tool class for ODT PCSS styles.
 *
 * Contains static helper functions which are used in multiple style converters.
 *
 * @package Document
 * @access private
 * @version //autogen//
 */
class ezcDocumentOdtPcssConverterTools
{
    /**
     * Serializes a color value.
     * 
     * @param array $colorValue 
     * @return string
     */
    public static function serializeColor( array $colorValue )
    {
        if ( $colorValue['alpha'] >= .5 )
        {
            return 'transparent';
        }
        else
        {
            return sprintf(
                '#%02x%02x%02x',
                round( $colorValue['red'] * 255 ),
                round( $colorValue['green'] * 255 ),
                round( $colorValue['blue'] * 255 )
            );
        }
    }
}

?>
