/**
* Rotates the specified image by the specified angles and returns a new
* object of the same type holding the rotated image.
*
* @param \Fine47\ImageMan\Prototype $image to rotate
* @param int $angles value for rotation
* @return \Fine47\ImageMan\Prototype rotated image
*/
public static function rotate(ImageMan\Prototype $image, $angles = 90)
{
// Get the transparent color of the attached image.
$color = $image->getTransparentColor();
// Ensure that we have a fill color.
Assert::that(['condition' => $color, 'message' => 'Unable to allocate a fill color for rotation', 'type' => Error::TYPE_IMAGE]);
// Rotate the image and use transparent color as filler (when available).
$rotated = Util\Image::getInfo(imagerotate($image->getResource(), $color, $image->supportsTransparency() ? 0 : 1));
// Ensure that we have a new image.
Assert::that(['condition' => $rotated, 'message' => 'Unable to rotate the image by [%d] degrees', 'args' => [$angles], 'type' => Error::TYPE_IMAGE]);
// Return as a new instance of the same image type.
return self::fromResource($image, $rotated);
}
public static function fromResource($resource)
{
$info = Util\Image::getInfo($resource);
Assert::that(['condition' => is_array($info), 'message' => 'The passed argument is not a resource', 'type' => Error::TYPE_ARGUMENT, 'magic' => 0xab4d]);
return new self($info['image'], $info['width'], $info['height']);
}