Initial checkin of Pika from heckimp

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2023-09-25 15:35:21 -07:00
commit 891e999216
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; tests of methods re masks on layers
; masks are a separate class in Pika PikaLayerMask
; but the methods are named strangely,
; e.g. there is no pika-layer-mask-get-layer
; setup
;
(define testImage (car (pika-image-new 21 22 RGB)))
(define
testLayer (car (pika-layer-new
testImage
21
22
RGB-IMAGE
"LayerNew"
50.0
LAYER-MODE-NORMAL)))
; assert layer is not inserted in image
; assert layerMask not on the layer yet!!!
(define
testLayerMask (car (pika-layer-create-mask
testLayer
ADD-MASK-WHITE)))
; mask is not on layer until added.
; Getting the mask for the layer yields -1.
(assert `(= (car (pika-layer-mask ,testLayer))
-1))
; add layerMask created on a layer to that layer succeeds
(assert `(pika-layer-add-mask
,testLayer
,testLayerMask))
; add layerMask to layer was effective:
; Getting the mask for the layer yields layerMask ID
(assert `(= (car (pika-layer-mask ,testLayer))
,testLayerMask))
; and vice versa
(assert `(= (car (pika-layer-from-mask ,testLayerMask))
,testLayer))
; creating and adding second mask
; creating a second mask from layer succeeds
(define
testLayerMask2
(car (pika-layer-create-mask
testLayer
ADD-MASK-WHITE)))
; adding a second layerMask fails
(assert-error `(pika-layer-add-mask
,testLayer
,testLayerMask2)
(string-append
"Procedure execution of pika-layer-add-mask failed: "
"Unable to add a layer mask since the layer already has one."))
; mask removal
; remove-mask fails if the layer is not on image
(assert-error `(pika-layer-remove-mask
,testLayer
MASK-APPLY) ; removal mode
"Procedure execution of pika-layer-remove-mask failed on invalid input arguments: ")
; "Item 'LayerNew' (12) cannot be used because it has not been added to an image"))
; adding layer to image succeeds
(assert `(pika-image-insert-layer
,testImage
,testLayer
0 ; parent
0 )) ; position within parent
; remove-mask succeeds
; when layer is in image
(assert `(pika-layer-remove-mask
,testLayer
MASK-APPLY)) ; removal mode
; and is effective
; layer no longer has a mask
(assert `(= (car (pika-layer-mask ,testLayer))
-1))
; and now we can add the second mask
(assert `(pika-layer-add-mask
,testLayer
,testLayerMask2))
; fails when mask different size from layer?
; fails create layerMask when ADD-CHANNEL-MASK and no active channel
; create layerMask ADD-ALPHA-MASK works even when no alpha channel
; TODO many variations of create

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; test Layer methods of PDB
; setup
(define testImage (car (pika-image-new 21 22 RGB)))
(define testLayer
(car (pika-layer-new
testImage
21
22
RGB-IMAGE
"LayerNew"
50.0
LAYER-MODE-NORMAL)))
; new layer is not in the image until inserted
(assert `(= (car (pika-image-get-layers ,testImage))
0))
; attributes of new layer
; defaulted attributes
; apply-mask default false
(assert `(=
(car (pika-layer-get-apply-mask ,testLayer))
0))
; blend-space default LAYER-COLOR-SPACE-AUTO
(assert `(=
(car (pika-layer-get-blend-space ,testLayer))
LAYER-COLOR-SPACE-AUTO))
; composite-mode default LAYER-COMPOSITE-AUTO
(assert `(=
(car (pika-layer-get-composite-mode ,testLayer))
LAYER-COMPOSITE-AUTO))
; composite-space default LAYER-COLOR-SPACE-AUTO
(assert `(=
(car (pika-layer-get-composite-space ,testLayer))
LAYER-COLOR-SPACE-AUTO))
; edit-mask default false
(assert `(=
(car (pika-layer-get-edit-mask ,testLayer))
0))
; lock-alpha default false
; deprecated? pika-layer-get-preserve-trans
(assert `(=
(car (pika-layer-get-lock-alpha ,testLayer))
0))
; mask not exist, ID -1
; deprecated? pika-layer-mask
(assert `(=
(car (pika-layer-get-mask ,testLayer))
-1))
; mode default LAYER-MODE-NORMAL
(assert `(=
(car (pika-layer-get-mode ,testLayer))
LAYER-MODE-NORMAL))
; show-mask default false
(assert `(=
(car (pika-layer-get-show-mask ,testLayer))
0))
; visible default true
; FIXME doc says default false
(assert `(=
(car (pika-layer-get-visible ,testLayer))
1))
; is-floating-sel default false
(assert `(=
(car (pika-layer-is-floating-sel ,testLayer))
0))
; !!! No get-offsets
; attributes are as given when created
; name is as given
(assert `(string=? (car (pika-layer-get-name ,testLayer))
"LayerNew"))
; opacity is as given
(assert `(=
(car (pika-layer-get-opacity ,testLayer))
50.0))
; generated attributes
; tattoo
; tattoo is generated unique within image?
(assert `(=
(car (pika-layer-get-tattoo ,testLayer))
2))

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; 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