<?
class progressbar extends console
{
    
    private $escapeSequence = "\033[%sm";
    
	private $text = '';
	private $steps = 0;
	private $delim = '';
	private $step = 0;
	private $maxchars = 70;
	
	public function __construct($steps=100,$text='',$delim='#',$maxchars=70)
	{
		$this->steps = abs($steps);
		$this->step  = 0;
		$this->text  = $text;
		$this->delim = $delim;
		$this->maxchars = $maxchars;
		$this->draw();
	}
	
	public function update()
	{
		$this->step++;
		$this->redraw();
	}
	
	private function draw()
	{
		print $this->text.' [';
		
		$proc = round(($this->step/$this->steps)*100,0);
		$complete = $proc.'% complete';
		//$complete = sprintf($this->afterText,
		
		$isuse = strlen($complete) + 4 + strlen($this->text);
		
		$max = $this->maxchars - $isuse;
		
		$dash = round($max*($proc/100)+1);
		$free = $max - $dash;
		
		//print 'max:'.$max.' dash:'.$dash.' free:'.$free;
		if($dash>0) print str_repeat($this->delim,$dash);
		if($free>0) print str_repeat('-',$free);
		print '] '.$complete;
	}
	private function redraw()
	{
		$this->toPos();
		$this->draw();
	}
	private function toPos( $column = 1 ) 
	{
	    echo "\033[{$column}G";
	}
}
?>