forInvalidImageCreate example

    protected function supportedFormatCheck()
    {
        switch ($this->image()->imageType) {
            case IMAGETYPE_WEBP:
                if (! in_array('WEBP', Imagick::queryFormats(), true)) {
                    throw ImageException::forInvalidImageCreate(lang('images.webpNotSupported'));
                }
                break;
        }
    }

    /** * Handler-specific method for overlaying text on an image. * * @return void * * @throws Exception */

$this->ensureResource();

        // for png and webp we can actually preserve transparency         if (in_array($this->image()->imageType, $this->supportTransparency, true)) {
            imagealphablending($this->resource, false);
            imagesavealpha($this->resource, true);
        }

        switch ($this->image()->imageType) {
            case IMAGETYPE_GIF:
                if (! function_exists('imagegif')) {
                    throw ImageException::forInvalidImageCreate(lang('Images.gifNotSupported'));
                }

                if (! @imagegif($this->resource, $target)) {
                    throw ImageException::forSaveFailed();
                }
                break;

            case IMAGETYPE_JPEG:
                if (! function_exists('imagejpeg')) {
                    throw ImageException::forInvalidImageCreate(lang('Images.jpgNotSupported'));
                }