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font mapping, naive

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Matthew Butterick 6 years ago
parent 97a18d4fb4
commit 3fcd1d9c3d
9 changed files with 49 additions and 26 deletions
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quad/qtest/fonts/fira-bold-italic.ttf
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quad/qtest/fonts/fira-bold.ttf
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quad/qtest/fonts/fira-italic.ttf
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quad/qtest/fonts/fira-light-bold-italic.ttf
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quad/qtest/fonts/fira-light-bold.ttf
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quad/qtest/fonts/fira-light-italic.ttf
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quad/qtest/fonts/fira.ttf
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61
quad/qtest/markdown.rkt
Unescape Escape View File

@ -17,7 +17,7 @@
(define mdash "—")
(define-tag-function (p attrs exprs)
(qexpr (append `((keep-first "2")(keep-last "3")(display ,(symbol->string (gensym)))) attrs) exprs))
(qexpr (append `((keep-first "2")(keep-last "3")(font-family "charter") (display ,(symbol->string (gensym)))) attrs) exprs))
(define-tag-function (hr attrs exprs)
hrbr)
@ -25,7 +25,7 @@
(define-tag-function (blockquote attrs exprs)
(qexpr (append '((display "block")
(background-color "#eee")
(font "fira") (fontsize "10") (line-height "15")
(font-family "fira") (fontsize "10") (line-height "15")
(border-width-top "0.5") (border-color-top "gray") (border-inset-top "8")
(border-width-left "3") (border-color-left "gray") (border-inset-left "20")
(border-width-bottom "0.5") (border-color-bottom "gray") (border-inset-bottom "-2")
@ -38,18 +38,18 @@
(define class (default-tag-function 'class))
(define-tag-function (strong attrs exprs)
(qexpr (cons '(font "charter-bold") attrs) exprs))
(qexpr (list* '(font-bold "true") attrs) exprs))
(define-tag-function (a attrs exprs)
(qexpr `((link ,(cadr (assoc 'href attrs)))(color "MediumVioletRed")) exprs))
(define-tag-function (em attrs exprs)
(qexpr (cons '(font "charter-italic") attrs) exprs))
(qexpr (list* '(font-italic "true") attrs) exprs))
(define-syntax-rule (attr-list . attrs) 'attrs)
(define (heading-base font-size attrs exprs)
(qexpr (append `((font "fira-light") (display "block") (fontsize ,(number->string font-size))(line-height ,(number->string (* 1.2 font-size))) (border-width-top "0.5")(border-inset-top "9")(border-inset-right "12") (inset-bottom "-3") (inset-top "6") (keep-with-next "true")) attrs) exprs))
(qexpr (append `((font-family "fira-light") (display "block") (fontsize ,(number->string font-size))(line-height ,(number->string (* 1.2 font-size))) (border-width-top "0.5")(border-inset-top "9")(border-inset-right "12") (inset-bottom "-3") (inset-top "6") (keep-with-next "true")) attrs) exprs))
(define-tag-function (h1 attrs exprs)
(heading-base 20 (append '() attrs) exprs))
@ -62,7 +62,7 @@
(define h6 h3)
(define-tag-function (code attrs exprs)
(qexpr (append '((font "fira-mono")(fontsize "10")(bg "aliceblue")) attrs) exprs))
(qexpr (append '((font-family "fira-mono")(fontsize "10")(bg "aliceblue")) attrs) exprs))
(define-tag-function (pre attrs exprs)
;; pre needs to convert white space to equivalent layout elements
@ -72,7 +72,7 @@
`(,(get-tag expr) ,(get-attrs expr) ,(string-replace str " " " ")))
lbr))
(qexpr (list* '(display "block") '(background-color "aliceblue")
'(font "fira-mono") '(fontsize "11") '(line-height "14")
'(font-family "fira-mono") '(fontsize "11") '(line-height "14")
'(border-inset-top "10")
'(border-width-left "2") '(border-color-left "#669") '(border-inset-left "0")
'(border-inset-right "10") '(border-inset-bottom "-4")
@ -110,7 +110,7 @@
;; draw with pdf text routine
#:draw (λ (q doc)
(when (pair? (quad-elems q))
(font doc (path->string (hash-ref (quad-attrs q) 'font)))
(font doc (path->string (hash-ref (quad-attrs q) font-path-key)))
(font-size doc (hash-ref (quad-attrs q) 'fontsize 12))
(fill-color doc (hash-ref (quad-attrs q) 'color "black"))
(define str (unsafe-car (quad-elems q)))
@ -127,10 +127,15 @@
(define-runtime-path charter-bold "fonts/charter-bold.ttf")
(define-runtime-path charter-italic "fonts/charter-italic.ttf")
(define-runtime-path fira "fonts/fira.ttf")
(define-runtime-path fira-bold "fonts/fira-bold.ttf")
(define-runtime-path fira-italic "fonts/fira.ttf")
(define-runtime-path fira-light "fonts/fira-light.ttf")
(define-runtime-path fira-light-bold "fonts/fira-light-bold.ttf")
(define-runtime-path fira-light-italic "fonts/fira-light-italic.ttf")
(define-runtime-path fira-mono "fonts/fira-mono.ttf")
(define default-font-face charter)
(define default-font-family "charter")
(define default-font-size 12)
(define (->string-quad doc q)
@ -144,24 +149,40 @@
;; so the first update will change every reference to the shared hash
;; hence why we ignore if val is already a path
;; but this op should ideally happen earlier
(hash-update! attrs 'font
(λ (val) (if (path? val)
val
(match (string-downcase (string-replace val " " "-"))
["charter" charter]
["charter-bold" charter-bold]
["charter-italic" charter-italic]
["fira" fira]
["fira-light" fira-light]
["fira-mono" fira-mono])))
default-font-face)
(unless (quad-ref q font-path-key)
(hash-set! attrs font-path-key
(match (string-downcase
(string-replace (or (quad-ref q 'font-family) default-font-family) " " "-"))
["charter" (if (quad-ref q 'font-bold)
(if (quad-ref q 'font-italic)
(error 'no-charter-bold-italic)
charter-bold)
(if (quad-ref q 'font-italic)
charter-italic
charter))]
["fira" (if (quad-ref q 'font-bold)
(if (quad-ref q 'font-italic)
(error 'no-fira-bold-italic)
fira-bold)
(if (quad-ref q 'font-italic)
fira-italic
fira))]
["fira-light" (if (quad-ref q 'font-bold)
(if (quad-ref q 'font-italic)
(error 'no-fira-light-italic)
fira-light-bold)
(if (quad-ref q 'font-italic)
fira-light-italic
fira-light))]
["fira-mono" fira-mono]
[_ default-font-face])))
(hash-ref! attrs 'fontsize default-font-size)
attrs)]
[elems (quad-elems q)]
[size (delay
(define fontsize (hash-ref (quad-attrs q) 'fontsize))
(font-size doc fontsize)
(font doc (path->string (hash-ref (quad-attrs q) 'font)))
(font doc (path->string (hash-ref (quad-attrs q) font-path-key)))
(define str (if (pair? (quad-elems q)) (unsafe-car (quad-elems q)) ""))
(define line-height (cond
[(and (pair? (quad-elems q)) (quad-ref q 'line-height))]

14
quad/quad/position.rkt
Unescape Escape View File

@ -16,16 +16,18 @@
(define (get-font font-name)
(hash-ref! font-cache font-name (λ () (open-font font-name))))
(define font-path-key 'font-path)
(define ascender-cache (make-hash))
(define (ascender q)
(define font-key-val (hash-ref (quad-attrs q) 'font "Courier"))
(define font-key-val (hash-ref (quad-attrs q) font-path-key "Courier"))
(unless font-key-val
(error 'ascender-no-font-key))
(hash-ref! ascender-cache font-key-val (λ () (font-ascent (get-font font-key-val)))))
(define units-cache (make-hash))
(define (units-per-em q)
(define font-key-val (hash-ref (quad-attrs q) 'font "Courier"))
(define font-key-val (hash-ref (quad-attrs q) font-path-key "Courier"))
(unless font-key-val
(error 'units-per-em-no-font-key))
(hash-ref! units-cache font-key-val (λ () (font-units-per-em (get-font font-key-val)))))
@ -160,15 +162,15 @@
(require racket/runtime-path fontland/font)
(define-runtime-path fira "fira.ttf")
(define q1 (q (list 'in 'bi 'out 'bo 'size '(10 10) 'font fira 'fontsize 12)))
(define q2 (q (list 'in 'bi 'out 'bo 'size '(10 10) 'font fira 'fontsize 24)))
(define q3 (q (list 'in 'bi 'out 'bo 'size '(10 10) 'font fira 'fontsize 6)))
(define q1 (q (list 'in 'bi 'out 'bo 'size '(10 10) font-path-key fira 'fontsize 12)))
(define q2 (q (list 'in 'bi 'out 'bo 'size '(10 10) font-path-key fira 'fontsize 24)))
(define q3 (q (list 'in 'bi 'out 'bo 'size '(10 10) font-path-key fira 'fontsize 6)))
#;(position (q #f q1 q2 q3)))
#;(module+ test
(require rackunit)
(define q (q (list 'in 'bi 'out 'bo 'size '(10 10) 'font fira 'fontsize 12)))
(define q (q (list 'in 'bi 'out 'bo 'size '(10 10) font-path-key fira 'fontsize 12)))
(check-equal? (ascender q) 935)
(check-equal? (units-per-em q) 1000)
(define ascender-scaled (* (/ (ascender q) (units-per-em q)) (hash-ref (quad-attrs q) 'fontsize) 1.0))

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