<?php
class Pie extends Graidle
{
	function drawPie($a,$b)
	{
		$incl=$this->incl;
		$AA=$this->AA;
		$tre_d=$this->tre_d*$AA;
		$radius=$this->radius;

		$Htmp=(($tre_d)+(($b*2)*$AA)/2);
		$Wtmp=(($a*2)*$AA)/2;

		$mul=0.95;
		
		if(isset($this->PieTitle))	$mul-=0.10;
		
		if(isset($this->PieExtLeg))
		{
			switch($this->PieExtLeg)
			{
				case 0: case 1: $mul-=0.15;break;
				case 2:	$mul-=0.25;break;
			}
		
		}

		for($t=0,$n=0;$t<count($this->value);$t++)
		{
			if($this->type[$t]=='p')
			{
				$pie_tmp = imagecreatetruecolor($Wtmp,$Htmp);
				$trasp=imagecolorallocatealpha($pie_tmp,0,0,0,127);
				imagefill($pie_tmp,0,0,$trasp);

				$cx=$Wtmp/2;
				$cy=($Htmp/2)-$tre_d/2;

				$tot=array_sum($this->value[$t]);

				for($i=0;$i<count($this->value[$t]);$i++)
				{
					$nx_deg+=(360*$this->value[$t][$i])/$tot;
					$deg[$i]=$nx_deg;
				}

				array_unshift($deg,0);

				for($y1=$tre_d;$y1>=0;$y1--)
				{
					for($i=0,$s=1;$i<count($this->value[$t]);$i++,$s++)
					{
						$c=$this->color[$i];
						list($name,$red,$green,$blue)=explode(',',$c);
						
						$x=$cx;
						$y=$cy+$y1;
						$h=($a*$mul)*$AA;
						$w=($b*$mul)*$AA;

						if($y1==0)
						{
							$mid_deg=($deg[$i]+$deg[$s])/2;
							$rgb=imagecolorallocate($this->im,$red,$green,$blue);
							imagefilledarc($pie_tmp,$x,$y,$h,$w,$deg[$i],$deg[$s],$rgb,IMG_ARC_PIE);
							
							if(isset($this->PieExtLeg))
							{
								
								switch($this->PieExtLeg)
								{
									case 0:	$legval=$this->value[$t][$i];$lngt=strlen($legval);break;
									case 1: $legval=round(($this->value[$t][$i]/$tot)*100,1)."%";$lngt=strlen($legval);break;
									case 2:	$legval=$this->value[$t][$i]." (".round(($this->value[$t][$i]/$tot)*100,1)."%)";$lngt=strlen($legval);break;
								}
								
								if($mid_deg<=90)						imagefttext($pie_tmp,$this->font_small*$AA,0,$x+($tre_d)+(($h/2)*cos(deg2rad($mid_deg))),$y+($tre_d)+($this->font_small*$AA)+(($w/2)*sin(deg2rad($mid_deg))),$rgb,$this->font,$legval);
								else if($mid_deg>90&&$mid_deg<=180)		imagefttext($pie_tmp,$this->font_small*$AA,0,$x-($lngt*($this->font_small*$AA))+(($h/2)*cos(deg2rad($mid_deg))),$y+($tre_d)+($this->font_small*$AA)+(($w/2)*sin(deg2rad($mid_deg))),$rgb,$this->font,$legval);
								else if($mid_deg>180&&$mid_deg<=270)	imagefttext($pie_tmp,$this->font_small*$AA,0,$x-($lngt*($this->font_small*$AA))+(($h/2)*cos(deg2rad($mid_deg))),$y+(($w/2)*sin(deg2rad($mid_deg))),$rgb,$this->font,$legval);
								else if($mid_deg>270)					imagefttext($pie_tmp,$this->font_small*$AA,0,$x+(($h/2)*cos(deg2rad($mid_deg))),$y+(($w/2)*sin(deg2rad($mid_deg))),$rgb,$this->font,$legval);
							}
						}
						else if($incl!=90)
						{
							$rgb=imagecolorallocate($this->im,$red/2,$green/2,$blue/2);
							imagefilledarc($pie_tmp,$x,$y,$h,$w,$deg[$i],$deg[$s],$rgb,IMG_ARC_NOFILL);
						}
					}
				}
				if(isset($this->PieTitle))	imagefttext($pie_tmp,$this->font_small*$AA,0,0,($this->font_small*$AA)+2,$black,$this->font,$this->PieTitle[$t]);

				imagecopyresampled($this->im,$pie_tmp, $this->s , $this->a+($Htmp/$AA)*$n,0,0,$Wtmp/$AA,$Htmp/$AA,$Wtmp,$Htmp);
				imagecolordeallocate($pie_tmp,$rgb);
				imagecolordeallocate($pie_tmp,$trasp);
				imagedestroy($pie_tmp);
				reset($deg);
				$nx_deg=0;
				$n++;
			}
		}
	}
}
?>