89 lines
2.5 KiB
Scheme
89 lines
2.5 KiB
Scheme
|
; test Layer methods of PDB
|
||
|
|
; where methods are operations
|
||
|
|
|
||
|
|
|
||
|
|
; setup
|
||
|
|
|
||
|
|
(define testImage (car (pika-image-new 21 22 RGB)))
|
||
|
|
|
||
|
|
(define
|
||
|
|
testLayer (car (pika-layer-new
|
||
|
|
testImage
|
||
|
|
21
|
||
|
|
22
|
||
|
|
RGB-IMAGE
|
||
|
|
"LayerNew#2"
|
||
|
|
50.0
|
||
|
|
LAYER-MODE-NORMAL)))
|
||
|
|
; assert layer is not inserted in image
|
||
|
|
|
||
|
|
|
||
|
|
; errors when layer not in image
|
||
|
|
|
||
|
|
; resize fails
|
||
|
|
(assert-error `(pika-layer-resize ,testLayer 23 24 0 0)
|
||
|
|
(string-append
|
||
|
|
"Procedure execution of pika-layer-resize failed on invalid input arguments: "))
|
||
|
|
;"Item 'LayerNew#2' (10) cannot be used because it has not been added to an image"))
|
||
|
|
|
||
|
|
; scale fails
|
||
|
|
(assert-error `(pika-layer-scale ,testLayer
|
||
|
|
23 24 ; width height
|
||
|
|
0) ; is local origin?
|
||
|
|
(string-append
|
||
|
|
"Procedure execution of pika-layer-scale failed on invalid input arguments: "))
|
||
|
|
;"Item 'LayerNew#2' (10) cannot be used because it has not been added to an image"))
|
||
|
|
|
||
|
|
; pika-layer-resize-to-image-size fails
|
||
|
|
; TODO
|
||
|
|
|
||
|
|
; pika-layer-remove-mask fails when layer has no mask
|
||
|
|
(assert-error `(pika-layer-remove-mask
|
||
|
|
,testLayer
|
||
|
|
MASK-APPLY)
|
||
|
|
(string-append
|
||
|
|
"Procedure execution of pika-layer-remove-mask failed on invalid input arguments: "))
|
||
|
|
; "Item 'LayerNew#2' (10) cannot be used because it has not been added to an image"))
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
; alpha operations
|
||
|
|
|
||
|
|
; add-alpha succeeds
|
||
|
|
(assert `(pika-layer-add-alpha ,testLayer))
|
||
|
|
|
||
|
|
; and is effective
|
||
|
|
; Note method on superclass Drawable
|
||
|
|
(assert `(= (car (pika-drawable-has-alpha ,testLayer))
|
||
|
|
1))
|
||
|
|
|
||
|
|
; flatten succeeds
|
||
|
|
(assert `(pika-layer-flatten ,testLayer))
|
||
|
|
|
||
|
|
; flatten was effective: no longer has alpha
|
||
|
|
; flatten a layer means "remove alpha"
|
||
|
|
(assert `(= (car (pika-drawable-has-alpha ,testLayer))
|
||
|
|
0))
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
; delete
|
||
|
|
|
||
|
|
; delete succeeds
|
||
|
|
(assert `(pika-layer-delete ,testLayer))
|
||
|
|
|
||
|
|
; delete second time fails
|
||
|
|
(assert-error `(pika-layer-delete ,testLayer)
|
||
|
|
"runtime: invalid item ID")
|
||
|
|
|
||
|
|
; Error for flatten:
|
||
|
|
; "Procedure execution of pika-layer-delete failed on invalid input arguments: "
|
||
|
|
; "Procedure 'pika-layer-delete' has been called with an invalid ID for argument 'layer'. "
|
||
|
|
; "Most likely a plug-in is trying to work on a layer that doesn't exist any longer."))
|
||
|
|
|
||
|
|
; delete layer when image already deleted fails
|
||
|
|
; TODO
|
||
|
|
|
||
|
|
|
