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ProgressBar.php

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<?php
/* $Id: template.php,v 1.3 2003/09/21 10:33:12 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 ProgressBar
{
        var $pos;
        var $max;
        var $step;
        var $h;

        function ProgressBar($max = 100, $step = 1)
        {
                if ($max != 0)
                {
                        $this->max = $max;
                }
                else
                {
                        $this->max = 1;
                }
                $this->step = $step;
                $this->pos = 0;
        }

        function Init()
        {
                global $document;
                
                $img = $document->theme()."/images/progressbar.png";
                $im = getimagesize($img);
                $this->h = $im[1];
                $buf = jsBegin();
                $buf .= "document.write('<div id=\"pb\"><img id=\"progressbar\" src=\"$img\" height=\"{$im[1]}\" width=\"0\" alt=\"\" />');\n";
                $buf .= "document.write('<div id=\"pb_text\"></div>');\n";
                $buf .= "document.write('<div id=\"progressbar_status\"></div></div>');\n";
                $buf .= jsEnd();

                return $buf;
        }
        
        function setPosition($pos)
        {
                $this->pos = $pos;
        }

        function getPosition()
        {
                return $this->pos;
        }

        function step()
        {
                $this->pos += $this->step;
        }

        function render()
        {
                if ($this->max != 0)
                {
                        $width = 300 * ($this->pos / $this->max);
                }
                $p = round(($this->pos / $this->max) * 100, 2);
                $buf .= "<script type=\"text/javascript\">\n<!--\n";
                $buf .= "document.getElementById('progressbar').width=$width;\n";
                $buf .= "document.getElementById('progressbar').height=".$this->h.";\n";
                $buf .= jsReplace('pb_text', "$p %");
                $buf .= "// -->\n</script>\n";
                print $buf; flush();
        }

        function inc()
        {
                $this->step();
                $this->render();
        }

        function hide()
        {
                $buf .= jsBegin();
//              $buf .= "document.getElementById('pb').style.display = none;\n";
                $buf .= jsReplace('pb', null);
                $buf .= jsEnd();
                print $buf; flush();
        }

        function status($msg = null)
        {
                $buf = jsBegin();
                $buf .= jsReplace('progressbar_status', $msg);
                $buf .= jsEnd();

                print $buf; flush();
        }
}
?>

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