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make 2htdp/image's equality function ignore baselines

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also some Rackety and spelling

related to PR 14760

original commit: 0c8834d5672d5d196f537002313be38750b8ba3f
This commit is contained in:
Robby Findler 2014-10-05 07:16:34 -05:00
parent 4c589fdacc
commit 8049145f64
1 changed files with 22 additions and 14 deletions
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36
pkgs/gui-pkgs/gui-lib/mrlib/image-core.rkt
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@ -134,7 +134,8 @@ has been moved out).
(define-struct/reg-mk ellipse (width height angle mode color) #:transparent #:omit-define-syntaxes)
;;
;; - (make-text string angle number color
;; number (or/c #f string) family (or/c 'normal 'italic) (or/c 'normal 'light 'bold) boolean)
;; number (or/c #f string) family
;; (or/c 'normal 'italic) (or/c 'normal 'light 'bold) boolean)
;; NOTE: font can't be the raw mred font or else copy & paste won't work
(define-struct/reg-mk text (string angle y-scale color size face family style weight underline)
#:omit-define-syntaxes #:transparent)
@ -144,7 +145,8 @@ has been moved out).
;; a bitmap is:
;; - (make-ibitmap (and/c (is-a?/c bitmap%) (lambda (x) (send x has-alpha-channel?)))
;; angle positive-real
;; hash[(list boolean[flip] number[x-scale] number[y-scale] number[angle]) -o> (is-a?/c bitmap%)])
;; hash[(list boolean[flip] number[x-scale] number[y-scale] number[angle])
;; -o> (is-a?/c bitmap%)])
;; NOTE: bitmap copying needs to happen in 'write' and 'read' methods
(define-struct/reg-mk ibitmap #:reflect-id bitmap (raw-bitmap angle x-scale y-scale cache)
#:omit-define-syntaxes #:transparent
@ -152,7 +154,8 @@ has been moved out).
;; a flip is:
;; - (make-flip boolean bitmap)
;; * the boolean is #t if the bitmap should be flipped vertically (after applying whatever rotation is in there)
;; * the boolean is #t if the bitmap should be flipped vertically
;; (after applying whatever rotation is in there)
;; * this struct is here to avoid adding a field to bitmaps, so that old save files
;; from when the library did not support flipping still load
;; (since normalization will add a flip structure if necessary)
@ -171,7 +174,8 @@ has been moved out).
;; a curve-segment is
;;
;; - (make-curve-segment point real real point real real color)
(define-struct/reg-mk curve-segment (start s-angle s-pull end e-angle e-pull color) #:transparent #:omit-define-syntaxes)
(define-struct/reg-mk curve-segment (start s-angle s-pull end e-angle e-pull color)
#:transparent #:omit-define-syntaxes)
;; a normalized-shape (subtype of shape) is either
;; - (make-overlay normalized-shape cn-or-simple-shape)
@ -300,9 +304,9 @@ has been moved out).
[(is-a? that bitmap%) (bitmap->image that)]
[else that])])
(and (is-a? that image%)
(same-bb? bb (send that get-bb))
(same-width/height? bb (send that get-bb))
(equal? pinhole (send that get-pinhole))
(or (and (not (skip-image-equality-fast-path)) ;; this is here to make testing more effective
(or (and (not (skip-image-equality-fast-path)) ;; this makes testing more effective
(equal? (get-normalized-shape) (send that get-normalized-shape)))
;; some shapes (ie, rectangles) draw 1 outside the bounding box
@ -388,8 +392,9 @@ has been moved out).
(define/public (compute-cached-bitmap)
(when use-cached-bitmap?
(unless cached-bitmap
(set! cached-bitmap (make-bitmap (min (+ (inexact->exact (round (bb-right bb))) 1) maximum-width)
(min (+ (inexact->exact (round (bb-bottom bb))) 1) maximum-height)))
(set! cached-bitmap
(make-bitmap (min (+ (inexact->exact (round (bb-right bb))) 1) maximum-width)
(min (+ (inexact->exact (round (bb-bottom bb))) 1) maximum-height)))
(define bdc (make-object bitmap-dc% cached-bitmap))
(send bdc erase)
(render-image this bdc 0 0)
@ -432,10 +437,13 @@ has been moved out).
(set-snipclass snip-class)))
(define (same-bb? bb1 bb2)
(and (= (round (bb-right bb1)) (round (bb-right bb2)))
(= (round (bb-bottom bb1)) (round (bb-bottom bb2)))
(and (same-width/height? bb1 bb2)
(= (round (bb-baseline bb1)) (round (bb-baseline bb2)))))
(define (same-width/height? bb1 bb2)
(and (= (round (bb-right bb1)) (round (bb-right bb2)))
(= (round (bb-bottom bb1)) (round (bb-bottom bb2)))))
(define racket/base:read read)
(define image-snipclass%
(class snip-class%
@ -500,10 +508,10 @@ has been moved out).
[(and (eq? tag 'struct:bitmap)
(= arg-count 6))
;; we changed the arity of the bitmap constructor from old versions,
;; so fix it up here.
;; it used to have these fields: (raw-bitmap raw-mask angle x-scale y-scale cache)
;; and the mask field was dropped in favor of always having an alpha bitmap in the
;; raw-bitmap field. The bytes that were written out always had the mask
;; so fix it up here. it used to have these fields:
;; (raw-bitmap raw-mask angle x-scale y-scale cache)
;; and the mask field was dropped in favor of always having an alpha bitmap in
;; the raw-bitmap field. The bytes that were written out always had the mask
;; factored in, tho (which led to a bug) so we can just ignore the mask here
(make-ibitmap (list-ref parsed-args 0)
(list-ref parsed-args 2)