private function handleImageEffects(&$imgHandle)
{
if (empty($this->effect)) {
return false;
}
switch ($this->effect) {
case self::EFFECT_BW:
if (defined("IMG_FILTER_GRAYSCALE")) {
imagefilter($imgHandle, IMG_FILTER_GRAYSCALE);
}
break;
case self::EFFECT_BRIGHTNESS:
if (defined("IMG_FILTER_BRIGHTNESS")) {
if (!is_numeric($this->effect_arg1)) {
$this->effect_arg1 = 50;
}
//set default value
UniteFunctionsHCar::validateNumeric($this->effect_arg1, "'ea1' argument");
imagefilter($imgHandle, IMG_FILTER_BRIGHTNESS, $this->effect_arg1);
}
break;
case self::EFFECT_CONTRAST:
if (defined("IMG_FILTER_CONTRAST")) {
if (!is_numeric($this->effect_arg1)) {
$this->effect_arg1 = -5;
}
//set default value
imagefilter($imgHandle, IMG_FILTER_CONTRAST, $this->effect_arg1);
}
break;
case self::EFFECT_EDGE:
if (defined("IMG_FILTER_EDGEDETECT")) {
imagefilter($imgHandle, IMG_FILTER_EDGEDETECT);
}
break;
case self::EFFECT_EMBOSS:
if (defined("IMG_FILTER_EMBOSS")) {
imagefilter($imgHandle, IMG_FILTER_EMBOSS);
}
break;
case self::EFFECT_BLUR:
if (defined("IMG_FILTER_GAUSSIAN_BLUR")) {
imagefilter($imgHandle, IMG_FILTER_GAUSSIAN_BLUR);
}
break;
case self::EFFECT_MEAN:
if (defined("IMG_FILTER_MEAN_REMOVAL")) {
imagefilter($imgHandle, IMG_FILTER_MEAN_REMOVAL);
}
break;
case self::EFFECT_SMOOTH:
if (defined("IMG_FILTER_SMOOTH")) {
if (!is_numeric($this->effect_arg1)) {
$this->effect_arg1 = 15;
}
//set default value
imagefilter($imgHandle, IMG_FILTER_SMOOTH, $this->effect_arg1);
}
break;
default:
$this->throwError("Effect not supported: <b>{$this->effect}</b>");
break;
}
}
