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Diffstat (limited to 'guile/starlet/colours.scm')
| -rw-r--r-- | guile/starlet/colours.scm | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/guile/starlet/colours.scm b/guile/starlet/colours.scm index 5b2877a..b5ff71b 100644 --- a/guile/starlet/colours.scm +++ b/guile/starlet/colours.scm @@ -7,8 +7,21 @@ make-colour-rgb colour-as-cmy colour-as-rgb + + cyan + magenta + yellow + red + green + blue + interpolate-colour - white)) + white + + <colour-component-id> + colour-component-id? + colour-component-id + get-colour-component)) (define-class <colour> (<object>) @@ -121,3 +134,19 @@ (make-exception-with-message "Unrecognised colour interpolation type") (make-exception-with-irritants interpolation-type)))))) + + +(define-class <colour-component-id> (<object>) + (component + #:init-form (error "Colour component must be specified") + #:init-keyword #:component + #:getter get-colour-component)) + + +(define (colour-component-id? a) + (is-a? a <colour-component-id>)) + + +(define (colour-component-id a) + (make <colour-component-id> + #:component a)) |