Source for file FontFamilySC.class.php

<?php
 
require_once(HARMONI."GUIManager/StyleComponent.class.php");
 
/**
 * The FontFamilySC represents CSS "font-family" values. The allowed
 * values are:
 * <ul style="font-family: monospace;">
 *         <li> serif </li>
 *         <li> sans-serif </li>
 *         <li> cursive </li>
 *         <li> fantasy </li>
 *         <li> monospace </li>
 *         <li> [specific-font-family] - for example: Arial, "Courier New" (if there is white space
 *                                    in the name of the font, then it must be quoted)</li>
 * </ul>
 * <br /><br />
 * One or more values (comma separated) are allowed. Example: you can set the
 * value to "Arial" or "Courier, 'Courier New', monospace".
 * <br /><br />
 * The <code>StyleComponent</code> (SC) is the most basic of the three building pieces
 * of CSS styles. It combines a CSS property value with a ValidatorRule to ensure that
 * the value follows a certain format.<br /><br />
 *
 * @package  harmoni.gui.scs
 * 
 * @copyright Copyright &copy; 2005, Middlebury College
 * @license http://www.gnu.org/copyleft/gpl.html GNU General Public License (GPL)
 *
 * @version $Id: FontFamilySC.class.php,v 1.11 2007/09/04 20:25:22 adamfranco Exp $
 */
class FontFamilySC extends StyleComponent {
 
    /**
     * The constructor.
     * @param string value The value to assign to this SC.
     * @access public
     ***/
    function FontFamilySC($value=null) {
        $options = array("serif","sans-serif","cursive","fantasy","monospace");
 
        $errDescription = "Could not validate the font-family StyleComponent value \"%s\".
                           Allowed values are: ".implode(", ", $options)."
                             or a specific font-family name (names with white space must be quoted).
                           Also, you can specify one or many comma-separated values.";
        
        
        $rule = CSSFontFamilyValidatorRule::getRule();
        
        $displayName = "Font Family";
        $description = "Specifies the font to use. Allowed values are: ".implode(", ", $options)."
                        or a specific font-family name (names with white space must be quoted).
                        Also, you can specify one or many comma-separated values.";
        
        $this->StyleComponent($value, $rule, $options, false, $errDescription, $displayName, $description);
    }
}
 
 
 
class CSSFontFamilyValidatorRule extends RegexValidatorRule {
    //@todo not tested
    
    
    
    
    
    function CSSFontFamilyValidatorRule(){
        
        $singleQuote = "'[- A-Za-z0-9]+'";
        $doubleQuote = "\"[- A-Za-z0-9]+\"";
        $noQuote = "[-A-Za-z0-9]+";
        
        $fontName = "(".$singleQuote."|".$doubleQuote."|".$noQuote.")";
        
        
        $re = "^(serif|sans-serif|cursive|fantasy|monospace|".$fontName."(, *".$fontName.")?)$";
        
        $this->_regex=$re;
    }
    
    
    
    /*
    function check($val) {
        $regs = array();
        $fonts = explode(",", $val);
        
        foreach ($fonts as $font)
            // no quotes, no white space
            if (ereg("^ *([a-z|A-Z])+ *$", $font))
                continue;
            // single quotes with optional white space
            else if (ereg("^ *'([a-z|A-Z] *)+' *$", $font))
                continue;
            // double quotes with optional white space
            else if (ereg("^ *\"([a-z|A-Z] *)+\" *$", $font))
                continue;
            else
                return false;
 
        return true;
    }
    */
    
    /**
     * This is a static method to return an already-created instance of a validator
     * rule. There are at most about a hundred unique rule objects in use durring
     * any given execution cycle, but rule objects are instantiated hundreds of
     * thousands of times.
     *
     * This method follows a modified Singleton pattern
     * 
     * @return object ValidatorRule 
     * @access public
     * @static
     * @since 3/28/05
     */
    function getRule () {
        // Because there is no way in PHP to get the class name of the descendent
        // class on which this method is called, this method must be implemented
        // in each descendent class.
 
        if (!is_array($GLOBALS['validator_rules']))
            $GLOBALS['validator_rules'] = array();
        
        $class = __CLASS__;
        if (!isset($GLOBALS['validator_rules'][$class]))
            $GLOBALS['validator_rules'][$class] = new $class;
        
        return $GLOBALS['validator_rules'][$class];
    }
}
 
    
    
 
?>