/
image.go
50 lines (45 loc) · 1.23 KB
/
image.go
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package processors
import "image"
// Generic image wraps the image.Image interface
// And provides methods for getting the Pix and Rect
// Values without typecasting
type GenericImage struct {
image.Image
}
// Get the pixel vaues from the image
func (img GenericImage) GetPix() ([]uint8, bool) {
switch img.Image.(type) {
case *image.Alpha:
return img.Image.(*image.Alpha).Pix, true
case *image.CMYK:
return img.Image.(*image.CMYK).Pix, true
case *image.Gray:
return img.Image.(*image.Gray).Pix, true
case *image.NRGBA:
return img.Image.(*image.NRGBA).Pix, true
case *image.RGBA:
return img.Image.(*image.RGBA).Pix, true
default:
return nil, false
}
}
// Get the rectangle of the image
func (img GenericImage) GetRect() (image.Rectangle, bool) {
switch img.Image.(type) {
case *image.Alpha:
return img.Image.(*image.Alpha).Rect, true
case *image.CMYK:
return img.Image.(*image.CMYK).Rect, true
case *image.Gray:
return img.Image.(*image.Gray).Rect, true
case *image.NRGBA:
return img.Image.(*image.NRGBA).Rect, true
case *image.RGBA:
return img.Image.(*image.RGBA).Rect, true
default:
return image.Rectangle{}, false
}
}
func NewGenericImage(img image.Image) GenericImage {
return GenericImage{Image: img}
}