/**
* Draw a an (optionally filled) circle on an $image
*
* @param resource $image
* @param int $x
* @param int $y
* @param int|array $size
* @param string $fill
* @param string|int $outline
*/
static function drawCircle($image, $x, $y, $size, $fill, $outline)
{
if (!empty($fill)) {
$fill = CoreUtils::hex2Rgb($fill);
$fill = imagecolorallocate($image, $fill[0], $fill[1], $fill[2]);
}
if (is_string($outline)) {
$outline = CoreUtils::hex2Rgb($outline);
$outline = imagecolorallocate($image, $outline[0], $outline[1], $outline[2]);
}
if (is_array($size)) {
$width = $size[0];
$height = $size[1];
$x2 = $x + $width;
$y2 = $y + $height;
} else {
$x2 = $x + $size;
$y2 = $y + $size;
$width = $height = $size;
}
$cx = CoreUtils::average($x, $x2);
$cy = CoreUtils::average($y, $y2);
if (isset($fill)) {
imagefilledellipse($image, $cx, $cy, $width, $height, $fill);
}
imageellipse($image, $cx, $cy, $width, $height, $outline);
}