Source for file GroupPrinter.class.php

<?php
/**
 * @package polyphony.HierarchyPrinter
 * 
 * @copyright Copyright &copy; 2005, Middlebury College
 * @license http://www.gnu.org/copyleft/gpl.html GNU General Public License (GPL)
 *
 * @version $Id: GroupPrinter.class.php,v 1.15 2007/09/19 14:04:46 adamfranco Exp $
 */
 
/**
 * This class will print an expandable view of Groups.
 * 
 *
 * @package polyphony.HierarchyPrinter
 * 
 * @copyright Copyright &copy; 2005, Middlebury College
 * @license http://www.gnu.org/copyleft/gpl.html GNU General Public License (GPL)
 *
 * @version $Id: GroupPrinter.class.php,v 1.15 2007/09/19 14:04:46 adamfranco Exp $
 * @since 11/11/04
 */
 
class GroupPrinter {
    
    /**
     * Print a group and the expanded children (other groups or members)
     * 
     * @param object $group 
     * @param string $printGroupFunction Prints current group in group format.
     * @param string $printMemberFunction Prints current group in member format.
     * @return void 
     * @access public
     * @since 11/8/04
     */
    function printGroup ($group, $harmoni,
                                $startingPathInfoKey,
                                $printGroupFunction,
                                $printMemberFunction ) 
    {
        // Get a string of our groupIds
        $groupId =$group->getId();
        $groupIdString = urlencode($groupId->getIdString());
        
        // Break the path info into parts for the enviroment and parts that
        // designate which groups to expand.
        $environmentInfo = array();
        $expandedGroups = array();
        if ($tmp = $harmoni->request->get("expandedGroups")) {
            $expandedGroups = explode(",", $tmp);
        }
        
        print "\n\n<table>\n\t<tr><td valign='top'>";
        
        // Print The Group
        print <<<END
 
<div style='
border: 1px solid #000; 
width: 15px; 
height: 15px;
text-align: center;
text-decoration: none;
font-weight: bold;
'>
 
END;
 
        // The child groups are already expanded for this group. 
        // Show option to collapse the list.        
        if (in_array($groupIdString, $expandedGroups)) {
            $groupsToRemove = array($groupIdString);
            $newGroups = array_diff($expandedGroups, $groupsToRemove); 
            $url =$harmoni->request->mkURL();
            $url->setValue("expandedGroups", implode(",",$newGroups));
            print "<a style='text-decoration: none;' href='";
            print $url->write();
            print "'>-</a>";
        
        // The group is not already expanded.  Show option to expand.    
        } else { 
            $newGroups = $expandedGroups;
            $newGroups[] = $groupIdString;
            print "<a style='text-decoration: none;' href='";
            $url =$harmoni->request->mkURL();
            $url->setValue("expandedGroups", implode(",", $newGroups));
            print $url->write();
            print "'>+</a>";
        }
        print "\n\t\t</div>";
        
        
        
        print "\n\t</td><td valign='top'>\n\t\t";
        eval($printGroupFunction.'($group);');
        print "\n\t</td></tr>\n</table>";
        
        
        // If the group was expanded, we need to recursively print its children.
        
        if (in_array($groupIdString, $expandedGroups)) {
            print <<<END
 
<div style='
    margin-left: 13px; 
    margin-right: 0px; 
    margin-top:0px; 
    padding-left: 10px;
    border-left: 1px solid #000;
'>
 
END;
            $childGroups =$group->getGroups(false);
            $childMembers =$group->getMembers(false);
            while ($childGroups->hasNext()) {
                $childGroup =$childGroups->next();
                GroupPrinter::printGroup( $childGroup,
                                            $harmoni,
                                            $startingPathInfoKey,
                                            $printGroupFunction,
                                            $printMemberFunction);
            }
            
            // And finally print all the members for the group
            
            while ($childMembers->hasNext()) {
                $childMember =$childMembers->next();
                
                print "\n\n<table>\n\t<tr><td valign='top'>";
                print "\n\t\t<div style='width: 15px;'>&nbsp;</div>";
                print "\n\t</td><td valign='top'>\n\t\t";
                eval($printMemberFunction.'($childMember);');
                print "\n\t</td></tr>\n</table>";
            }            
            print "\n</div>";
 
        }
        
    }
    
    
    
}
 
?>