Function extendImage

processing/extend.go:3–20

(c *Context, width, height int, gravity *GravityOptions)

package processing

func extendImage(c *Context, width, height int, gravity *GravityOptions) error {
	imgWidth := c.Img.Width()
	imgHeight := c.Img.Height()

	if width <= imgWidth && height <= imgHeight {
		return nil
	}

	if width <= 0 {
		width = imgWidth
	}
	if height <= 0 {
		height = imgHeight
	}

	offX, offY := calcPosition(width, height, imgWidth, imgHeight, gravity, c.DprScale, false)
	return c.Img.Embed(width, height, offX, offY)
}

func (p *Processor) extend(c *Context) error {
	if !c.PO.ExtendEnabled() {