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ThemeEngine.php

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<?php
/* $Id: ThemeEngine.php,v 1.2 2003/10/03 15:27:41 mikko Exp $ */
/*
 * ImaComm - a web based photo album software
 * Copyright (C) 2003, Mikko Kokkonen
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or (at
 * your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
class ThemeEngine
{
        var $theme;
        var $template;

        function ThemeEngine()
        {
                global $config;

                $this->theme = $config->option("theme");
        }

        function loadTemplate($template)
        {
                $tpl = $this->theme."/templates/$template.php";

                if (file_exists($tpl))
                {
                        require_once "$tpl";
                        return $template;
                }
                else
                {
                        return deverror("Unable to open template <b>$tpl</b>!");
                }
        }

        // {{{ string loadTemplateNew($template)
        function loadTemplateNew($template)
        {
                $tpl = $this->theme."/templates/$template.tpl";

                if (file_exists($tpl))
                {
                        $file = file($tpl);
                        foreach ($file as $ln => $line)
                        {
                                $this->template[] = trim($line);
                        }
                        return null;
                }
                else
                {
                        return translate("Template $template doesn't exists!");
                }
        }
        // }}}

        // {{{ string applyTemplate($tags, $values)
        function applyTemplate($items, $tags)
        {
                if (!is_array($this->template) || !is_array($items) || !is_array($tags))
                {
                        return null;
                }

                // Let's start to parse...
                $rowloop = false;
                $itemloop = null;
                
                // Load item loop block...
                for ($l = 0; $l < count($this->template); $l++)
                {
                        $line = $this->template[$l];

                        if ($line == "<@row_begin>")
                        {
                                $rowloop = true;
                                continue;
                        }
                        if ($line == "<@row_end>")
                        {
                                $rowloop = false;
                                // Loop all items...
                                
                        }
                        if ($rowloop)
                        {
                                $itemloop[] = $line;
                        }
                }
                
                // Generate item loop block...
                $rowloop = false;
                for ($l = 0; $l < count($this->template); $l++)
                {
                        $line = $this->template[$l];
                        if ($line == "<@row_begin>")
                        {
                                $rowloop = true;
                                continue;
                        }
                        if ($line == "<@row_end>")
                        {
                                $rowloop = false;
                                continue;
                        }
                        if ($rowloop)
                        {
                                if (!$itemsdone)
                                {
                                        print "DG: Row loop on line $l<br />";
                                        // Generate search block..
                                        foreach ($tags as $tag)
                                        {
                                                $search[] = "/<@$tag>/";
                                        }
                                        // Put here all our items...
                                        for ($i = 0; $i < count($items); $i++)
                                        {
                                                print "DG: Item $i<br />";
                                                print dprint($items[$i]);
                                                $block = null;
                                                // How many item block do we have?
                                                $count = preg_match('/\<@item\>/', implode("\n", $itemloop), $match);
                                                print "$count<br />";
                                                for ($c = 0; $c < $count; $c++)
                                                {
                                                        // Generate replace block...
                                                        $replace = $items[$l];
        
                                                        // Substitute...
                                                        $block .= preg_replace($search, $replace, $itemloop, 1);
                                                        $l++;
                                                }
                                                $buf .= $block;
                                        }
                                        $itemsdone = true;
                                }
                        }
                        else
                        {
                                $buf .= $line;
                        }
                }
                print htmlentities($buf);
        }
        // }}}
}
?>

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