main
Matthew Butterick 6 years ago committed by Matthew Butterick
parent cb798129f2
commit f432965911

@ -114,6 +114,7 @@
#:type [type quad]
#:attrs [attrs (make-hasheq)]
#:elems [elems null]
#:id [id #f]
#:size [size '(0 0)]
#:from-parent [from-parent #false]
#:from [from 'ne]
@ -148,8 +149,8 @@
draw-start
draw
draw-end))
(define id (string->symbol (~r (eq-hash-code args) #:base 36)))
(apply type (append args (list id)))]))
(define id-syn (string->symbol (if id (~a id) (~r (eq-hash-code args) #:base 36))))
(apply type (append args (list id-syn)))]))
(define-syntax (define-quad stx)
(syntax-case stx ()

@ -48,6 +48,7 @@
(define q:string (q #:type string-quad
#:from 'bo
#:to 'bi
#:id 'str
#:printable q:string-printable?
#:draw q:string-draw
#:draw-end q:string-draw-end))
@ -108,6 +109,7 @@
#:from 'sw
#:to 'nw
#:printable #true
#:id 'line
#:draw-start (if draw-debug-line? draw-debug void)))
(struct line-spacer quad () #:transparent)
@ -411,6 +413,7 @@
(draw-page-footer q doc))))
(define q:page (q
#:id 'page
#:from-parent 'nw
#:draw-start page-draw-start))
@ -460,6 +463,7 @@
(q #:from 'sw
#:to 'nw
#:elems (from-parent lines 'nw)
#:id 'block
#:size (delay (pt (pt-x (size first-line)) ;
(+ (for/sum ([line (in-list lines)])
(pt-y (size line)))
@ -504,7 +508,7 @@
(hash-set! h 'doc-title (string-titlecase (path->string name)))
h)]))
(list (struct-copy quad page-quad
[elems (cons footer (from-parent #R (insert-blocks #R lns) 'nw))])))
[elems (cons footer (from-parent (insert-blocks lns) 'nw))])))
(define (page-wrap xs vertical-height [page-quad q:page])
(unless (positive? vertical-height)
@ -526,8 +530,7 @@
(define (insert-blocks lines)
(define groups-of-lines (contiguous-group-by (λ (x) (quad-ref x 'display)) lines))
(append* (for/list ([line-group (in-list groups-of-lines)])
#R (quad-attrs (car line-group))
(if #R (quad-ref #R (car line-group) 'display)
(if (quad-ref (car line-group) 'display)
(list (block-wrap line-group))
line-group))))
@ -615,7 +618,7 @@
[right-margin (or (debug-x-margin)
(quad-ref (car qs) 'page-margin-right (λ () (quad-ref (car qs) 'page-margin-left default-y-margin))))]
[line-wrap-size (- (pdf-width pdf) left-margin right-margin)]
[qs (time-name line-wrap (line-wrap qs line-wrap-size))]
[qs (time-name line-wrap #R (line-wrap qs line-wrap-size))]
[qs (apply-keeps qs)]
;; if only top or bottom margin is provided, copy other value in preference to default margin
[top-margin (or (debug-y-margin)

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