transform

type Transform struct {
	Rendition     image.Rendition `json:"rendition,omitempty"`
	ContentWidth  int             `json:"contentWidth,omitempty"`
	ContentHeight int             `json:"contentHeight,omitempty"`
	Resize        bool            `json:"resize,omitempty"`
	Crop          bool            `json:"crop,omitempty"`
}

type Transformer interface {
	CalculateTransform(contentAttributes *image.ContentAttributes, rendition *image.Rendition) (*Transform, error)
	TransformContent(reader io.Reader, transform *Transform) (io.ReadCloser, error)
}

type TransformerImpl struct{}