<?php
/*
*    Written by Sean Dempsey - hide@address.com
*    http://www.seandempsey.com
*
*
*    This script is distributed under the GPL License
*
*    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.
*
*    http://www.gnu.org/licenses/gpl.txt
*
*/

class progress_bar{
	var $name;		// The name of the html element representing the progress bar.
	var $percent;   // The current percent value of the progress bar (in decimal).
	var $width;     // The maximum width of the progress bar.

    var $percentage; // the actial percent value of the progress bar (in percentage)

	/*Function progress_bar - The progress bar constructor function
    	$name -- the name of the html element representing the progress bar.
        $percent -- the initial percent value of the progress bar.
        $total -- total value possible.
    	$auto_create if set to TRUE the create() function will be called upon construction of the progress bar
        $animated -- is it animated?
        $css_path -- path to the bar images?
	*/
	function progress_bar($name = 'pbar', $complete=1, $total=100, $auto_create = TRUE, $animated = "TRUE", $css_path=""){
		$width = 200;
        $this->name = $name;

		$this->percent = round( ($complete / $total), 3);
        $this->percentage = ($this->percent * 100) . "%";
        $this->width = round($this->percent * $width);

        if ($css_path != ""){
            if ($css_path == ".") $css_path = "";

            if ($animated == "TRUE"){
                $bar_image = "bar_ani.gif";
            }
            else{
                $bar_image = "bar_static.gif";
            }

        ?>
            <style>

            /* PROGRESS BAR */

            .progressBar{
                width:216px;
                height:41px;
                background:url(<?=$css_path?>bg_bar.gif) no-repeat 0 0;
                position:relative;
            }
            .progressBar span{
                position:absolute;
                display:block;
                width:200px;
                height:25px;
                background:url(<?=$css_path . $bar_image?>) no-repeat 0 0;
                top:8px;
                left:8px;
                overflow:hidden;
                text-align: right;

            }
            .progressBar span b{
                overflow: visible;
                z-index: 1;
                margin-right: 10px;
                font-size: 1.2em;
            }

            .progressBar em{
                position:absolute;
                z-index: -1;
                display:block;
                width:200px;
                height:25px;
                background:url(<?=$css_path?>bg_cover.gif) repeat-x 0 0;
                top:0;
            }

            </style>

        <?
        }

        if($auto_create){
			$this->create();
		}
  	}

	/*Function create() - Dispalys the progress bar as an html
    	element. (Warning: do not call this function twice or if $auto_create is set to TRUE)
    	(This function becomes usless after the create(); function is called.)*/
	function create(){

        if ($this->percent > .85) $font_color = "style='color: #FFF';";
?>

    <p class="progressBar">
        <span><em style="left:<?=$this->width?>px"></em><b <?=$font_color?>><?=$this->percentage?></b></span>
    </p>

<?
	}

	/*Function set_name() - Sets the $percent of the object based on current tasks done and the total tasks to finish.
    	(This function becomes useless after the create(); function is called.)*/

	function set_name($name){
		$this->name = $name;
	}

	/*Function set_percent() - Sets the $percent of the progress bar using a pre-calculated percent.
	function set_percent($percent){
		$this->percent = $percent;
	}

 	/*Function set_percent_adv() - Sets the $percent of the object based
 	    on current tasks done and the total tasks to finish.
	    $cur_amount the curent number of tasks completed in a script
	    $max_amount the number of tasks to complete in a script*/

	function set_percent_adv($cur_amount,$max_amount){
		$this->percent = ($cur_amount / $max_amount) * 100;
	}

	/*Function set_width() - Sets the maximum $width of the progress bar.
	    $cur_amount the curent number of tasks completed in a script
	    $max_amount the number of tasks to complete in a script*/

	function set_width($width){
		$this->width = $width;
	}
}

?>