/**
* Compile the necessary data for the image crop effect.
*
* @param string $focal_point
* @param int $image_width
* @param int $image_height
* @param int $crop_width
* @param int $crop_height
*
* @return array|bool
* An array containing the following keys:
* - width
* - height
* - x
* - y
*/
public static function calculateCropData($focal_point, $image_width, $image_height, $crop_width, $crop_height)
{
$crop_data = array();
$parsed_focal_point = FocalPoint::parse($focal_point);
// Get the pixel location of the focal point for the current image taking
// the image boundaries into account.
$crop_data['width'] = (int) $crop_width;
$crop_data['height'] = (int) $crop_height;
$crop_data['x'] = self::calculateAnchor($image_width, $crop_width, $parsed_focal_point['x-offset']);
$crop_data['y'] = self::calculateAnchor($image_height, $crop_height, $parsed_focal_point['y-offset']);
return $crop_data;
}
/**
* Tests the parse() method.
*
* @dataProvider providerParseFocalPoint
*/
public function testFocalPointParse($focal_point, $expected)
{
$this->assertSame($expected, FocalPoint::parse($focal_point));
}