$this->numChars)) $this->numChars = $num;
# gerar string randmica
$this->texto = $this->gerString();
$_SESSION['vImageCodS'] = $this->texto;
}
function loadCodes(){
$this->postCode = $_POST['vImageCodP'];
$this->sessionCode = $_SESSION['vImageCodS'];
}
function checkCode(){
if (isset($this->postCode)) $this->loadCodes();
if ($this->postCode == $this->sessionCode)
return true;
else
return false;
}
function showCodBox($mode=0,$extra=''){
$str = " ";
if ($mode)
echo $str;
else
return $str;
}
function showImage(){
$this->gerImage();
header("Content-type: image/png");
ImagePng($this->im);
}
function gerImage(){
# Calcular tamanho para caber texto
$this->w = ($this->numChars*$this->charx) + 40; #5px de cada lado, 4px por char
# Criar img
$this->im = imagecreatetruecolor($this->w, $this->h);
#desenhar borda e fundo
imagefill($this->im, 0, 0, $this->getColor($this->colBorder));
imagefilledrectangle ( $this->im, 1, 1, ($this->w-2), ($this->h-2), $this->getColor($this->colBG) );
#desenhar circulos
for ($i=1;$i<=$this->numCirculos;$i++) {
$randomcolor = imagecolorallocate ($this->im , rand(100,255), rand(100,255),rand(100,255));
imageellipse($this->im,rand(0,$this->w-10),rand(0,$this->h-3), rand(20,60),rand(20,60),$randomcolor);
}
#escrever texto
$ident = 20;
for ($i=0;$i<$this->numChars;$i++){
$char = substr($this->texto, $i, 1);
$font = rand(5,5);
$y = round(($this->h-15)/2);
$col = $this->getColor($this->colTxt);
//if (($i%2) == 0){
imagechar ( $this->im, $font, $ident, $y, $char, $col );
//}else{
//imagecharup ( $this->im, $font, $ident, $y+10, $char, $col );
//}
$ident = $ident+$this->charx;
}
}
function getColor($var){
$rgb = explode(" ",$var);
$col = imagecolorallocate ($this->im, $rgb[0], $rgb[1], $rgb[2]);
return $col;
}
function gerString(){
rand(0,time());
$possible="AGHICEFHJKRSTVXY124579";
while(strlen($str)<$this->numChars)
{
$str.=substr($possible,(rand()%(strlen($possible))),1);
}
$txt = $str;
return $txt;
}
}
#dooms@terra.com.br# ?>