1 ;;;; font.scm -- construct font trees
3 ;;;; source file of the GNU LilyPond music typesetter
5 ;;;; (c) 2004 Han-Wen Nienhuys <hanwen@xs4all.nl>
7 ;; As an excercise, do it with records.
8 ;; Should use GOOPS, really.
12 ;; lookup-font should be written in C.
14 ;; should dump tree to .texi as internal documentation
16 ;; * should extract design sizes from fonts: fonts should
17 ;; be read off the disk, on demand, something like:
19 ;; cmr -> ((font-load "cmr6") (font-load "cmr8") .. )
22 (define-class <Font-tree-element>
26 (define-class <Font-tree-leaf> (<Font-tree-element>)
27 (default-size #:init-keyword #:default-size)
28 (size-vector #:init-keyword #:size-vector))
30 (define-class <Font-tree-node> (<Font-tree-element>)
31 (qualifier #:init-keyword #:qualifier #:accessor font-qualifier)
32 (default #:init-keyword #:default #:accessor font-default)
33 (children #:init-keyword #:children #:accessor font-children))
35 (define (make-font-tree-leaf size size-font-vector)
36 (make <Font-tree-leaf> #:default-size size #:size-vector size-font-vector))
38 (define (make-font-tree-node
40 (make <Font-tree-node>
43 #:children (make-hash-table 11)))
45 (define-method (display (leaf <Font-tree-leaf>) port)
46 (map (lambda (x) (display x port))
48 "Font-size-family: \n"
49 (slot-ref leaf 'default-size)
50 (slot-ref leaf 'size-vector) )))
52 (define-method (display (node <Font-tree-node>) port)
59 "Font_node { \nqual: "
67 (display (car x) port)
69 (display (cdr x) port))
70 (hash-table->alist (font-children node)))
74 (define default-qualifier-order
75 '(font-encoding font-family font-shape font-series))
77 (define-method (add-font (node <Font-tree-node>) fprops size-family)
78 (define (assoc-delete key alist)
79 (assoc-remove! (list-copy alist) key))
80 (define (make-node fprops size-family)
82 (make-font-tree-leaf (car size-family) (cdr size-family))
84 ((qual (next-qualifier default-qualifier-order fprops)))
85 (make-font-tree-node qual
86 (assoc-get qual fprops)))))
88 (define (next-qualifier order props)
90 ((and (null? props) (null? order))
92 ((null? props) (car order))
93 ((null? order) (caar props))
95 (if (assoc-get (car order) props)
97 (next-qualifier (cdr order) props)))))
101 ((q (font-qualifier node))
102 (d (font-default node))
103 (v (assoc-get q fprops d))
104 (new-fprops (assoc-delete q fprops))
105 (child (hashq-ref (slot-ref node 'children)
111 (set! child (make-node new-fprops size-family))
112 (hashq-set! (slot-ref node 'children) v child)))
113 (if (pair? new-fprops)
114 (add-font child new-fprops size-family))))
117 (define-method (add-font (node <Font-tree-leaf>) fprops size-family)
118 (throw "must add to node, not leaf"))
121 (define-method (g-lookup-font (node <Font-tree-node>) alist-chain)
123 ((qual (font-qualifier node))
124 (def (font-default node))
125 (val (chain-assoc-get qual alist-chain def))
126 (desired-child (hashq-ref (font-children node) val)))
129 (g-lookup-font desired-child alist-chain)
130 (g-lookup-font (hashq-ref (font-children node) def) alist-chain))))
133 (define-method (g-lookup-font (node <Font-tree-leaf>) alist-chain)
136 ;; two step call is handy for debugging.
137 (define (lookup-font node alist-chain)
138 (g-lookup-font node alist-chain))
141 ; Each size family is a vector of fonts, loaded with a delay.
142 ; The vector should be sorted according to ascending design size.
145 (define-public (add-music-fonts node factor)
149 (list (cons 'font-encoding (car x)))
150 (cons (* factor (cadr x))
155 ,(delay (ly:font-load "feta-alphabet11"))
156 ,(delay (ly:font-load "feta-alphabet13"))
157 ,(delay (ly:font-load "feta-alphabet14"))
158 ,(delay (ly:font-load "feta-alphabet16"))
159 ,(delay (ly:font-load "feta-alphabet18"))
160 ,(delay (ly:font-load "feta-alphabet20"))
161 ,(delay (ly:font-load "feta-alphabet23"))
162 ,(delay (ly:font-load "feta-alphabet26"))))
165 ,(delay (ly:font-load "feta-alphabet11"))
166 ,(delay (ly:font-load "feta-alphabet13"))
167 ,(delay (ly:font-load "feta-alphabet14"))
168 ,(delay (ly:font-load "feta-alphabet16"))
169 ,(delay (ly:font-load "feta-alphabet18"))
170 ,(delay (ly:font-load "feta-alphabet20"))
171 ,(delay (ly:font-load "feta-alphabet23"))
172 ,(delay (ly:font-load "feta-alphabet26"))))
176 ,(delay (ly:font-load "bigcheese11"))
177 ,(delay (ly:font-load "bigcheese13"))
178 ,(delay (ly:font-load "bigcheese14"))
179 ,(delay (ly:font-load "bigcheese16"))
180 ,(delay (ly:font-load "bigcheese18"))
181 ,(delay (ly:font-load "bigcheese20"))
182 ,(delay (ly:font-load "bigcheese23"))
183 ,(delay (ly:font-load "bigcheese26"))))
185 (fetaBraces 100.0 #(,(delay
186 (ly:font-load "aybabtu")))))))
188 (define-public (add-cmr-fonts node factor)
189 (add-font node '((font-encoding . TeX-math))
190 `(,(* factor 10) . #(,(delay (ly:font-load "msam10")))))
193 (add-font node `((font-encoding . TeX-text)
194 (font-series . ,(vector-ref (car x) 2))
195 (font-shape . ,(vector-ref (car x) 1))
196 (font-family . ,(vector-ref (car x) 0)))
197 (cons (* factor (cadr x))
199 `((#(roman upright medium)
200 . (10.0 . #(,(delay (ly:font-load "cmr6"))
201 ,(delay (ly:font-load "cmr8"))
202 ,(delay (ly:font-load "cmr10"))
203 ,(delay (ly:font-load "cmr17")))))
204 (#(roman upright bold)
205 . (10.0 . #(,(delay (ly:font-load "cmbx6"))
206 ,(delay (ly:font-load "cmbx8"))
207 ,(delay (ly:font-load "cmbx10"))
208 ,(delay (ly:font-load "cmbx12")))))
209 (#(roman italic medium)
210 . (10.0 . #(,(delay (ly:font-load "cmti7"))
211 ,(delay (ly:font-load "cmti10"))
212 ,(delay (ly:font-load "cmti12")))))
213 (#(roman italic bold)
214 . (10.0 . #(,(delay (ly:font-load "cmbxti8"))
215 ,(delay (ly:font-load "cmbxti10"))
216 ,(delay (ly:font-load "cmbxti14")))))
217 (#(roman caps medium)
218 . (10.0 . #(,(delay (ly:font-load "cmcsc10")))))
219 (#(roman upright bold-narrow )
220 . (10.0 . #(,(delay (ly:font-load "cmb10")))))
221 (#(sans upright medium)
222 . (10.0 . #(,(delay (ly:font-load "cmss8"))
223 ,(delay (ly:font-load "cmss10"))
224 ,(delay (ly:font-load "cmss12"))
225 ,(delay (ly:font-load "cmss17")))))
226 (#(typewriter upright medium)
227 . (10.0 . #(,(delay (ly:font-load "cmtt8"))
228 ,(delay (ly:font-load "cmtt10"))
229 ,(delay (ly:font-load "cmtt12"))))))))
231 ;; Debian lmodern font support.
232 (define-public (add-cork-lm-fonts node factor)
235 (add-font node `((font-encoding . cork-lm)
236 (font-series . ,(vector-ref (car x) 2))
237 (font-shape . ,(vector-ref (car x) 1))
238 (font-family . ,(vector-ref (car x) 0)))
239 (cons (* factor (cadr x)) (cddr x))))
240 `((#(roman upright medium)
241 . (10.0 . #(,(delay (ly:font-load "lmr6"))
242 ,(delay (ly:font-load "lmr8"))
243 ,(delay (ly:font-load "lmr10"))
244 ,(delay (ly:font-load "lmr17")))))
245 (#(roman upright bold)
246 . (10.0 . #(,(delay (ly:font-load "lmbx6"))
247 ,(delay (ly:font-load "lmbx8"))
248 ,(delay (ly:font-load "lmbx10"))
249 ,(delay (ly:font-load "lmbx12")))))
250 (#(roman italic medium)
251 . (10.0 . #(,(delay (ly:font-load "lmri7"))
252 ,(delay (ly:font-load "lmri10"))
253 ,(delay (ly:font-load "lmri12")))))
254 (#(roman italic bold)
255 . (10.0 . #(,(delay (ly:font-load "lmbxi10")))))
256 (#(roman caps medium)
257 . (10.0 . #(,(delay (ly:font-load "lmcsc10")))))
258 (#(roman upright bold-narrow )
259 . (10.0 . #(,(delay (ly:font-load "lmb10")))))
260 (#(sans upright medium)
261 . (10.0 . #(,(delay (ly:font-load "lmss8"))
262 ,(delay (ly:font-load "lmss10"))
263 ,(delay (ly:font-load "lmss12"))
264 ,(delay (ly:font-load "lmss17")))))
265 (#(sans upright bold)
266 . (10.0 . #(,(delay (ly:font-load "lmssbx10")))))
268 (#(typewriter upright medium)
269 . (10.0 . #(,(delay (ly:font-load "lmtt8"))
270 ,(delay (ly:font-load "lmtt10"))
271 ,(delay (ly:font-load "lmtt12"))))))))
273 ;; ec-fonts-mftraced font support.
274 (define-public (add-ec-fonts node factor)
276 (lambda (x) (add-font node
277 `((font-encoding . Extended-TeX-Font-Encoding---Latin)
278 (font-series . ,(vector-ref (car x) 2))
279 (font-shape . ,(vector-ref (car x) 1))
280 (font-family . ,(vector-ref (car x) 0)))
281 (cons (* factor (cadr x)) (cddr x))))
283 `((#(roman upright medium)
284 . (10.0 . #(,(delay (ly:font-load "ecrm6"))
285 ,(delay (ly:font-load "ecrm8"))
286 ,(delay (ly:font-load "ecrm10"))
287 ,(delay (ly:font-load "ecrm17")))))
288 (#(roman upright bold)
289 . (10.0 . #(,(delay (ly:font-load "ecbx6"))
290 ,(delay (ly:font-load "ecbx8"))
291 ,(delay (ly:font-load "ecbx10"))
292 ,(delay (ly:font-load "ecbx12")))))
293 (#(roman italic medium)
294 . (10.0 . #(,(delay (ly:font-load "ecti7"))
295 ,(delay (ly:font-load "ecti10"))
296 ,(delay (ly:font-load "ecti12")))))
297 (#(roman italic bold)
298 . (10.0 . #(,(delay (ly:font-load "ecbi8"))
299 ,(delay (ly:font-load "ecbi10"))
300 ,(delay (ly:font-load "ecbi14")))))
301 (#(roman caps medium)
302 . (10.0 . #(,(delay (ly:font-load "eccc10")))))
303 (#(roman slanted-caps medium)
304 . (10.0 . #(,(delay (ly:font-load "ecsc10")))))
305 (#(roman upright bold-narrow )
306 . (10.0 . #(,(delay (ly:font-load "ecrb10")))))
307 (#(sans upright medium)
308 . (10.0 . #(,(delay (ly:font-load "ecss8"))
309 ,(delay (ly:font-load "ecss10"))
310 ,(delay (ly:font-load "ecss12"))
311 ,(delay (ly:font-load "ecss17")))))
312 (#(typewriter upright medium)
313 . (10.0 . #(,(delay (ly:font-load "ectt8"))
314 ,(delay (ly:font-load "ectt10"))
315 ,(delay (ly:font-load "ectt12"))))))))
317 ;; (display (make-font-tree 1.0))
319 ;; Century Schoolbook fonts file names on Debian/Sid
320 (define-public (add-century-schoolbook-fonts node factor)
322 '((font-family . roman)
323 (font-shape . upright)
324 (font-series . medium)
325 (font-encoding . latin1))
326 `(10.0 . #(,(delay (ly:font-load "uncr8a")))))
328 '((font-family . roman)
329 (font-shape . italic)
330 (font-series . medium)
331 (font-encoding . latin1))
332 `(10.0 . #(,(delay (ly:font-load "uncri8a")))))
334 '((font-family . roman)
335 (font-shape . upright)
337 (font-encoding . latin1))
338 `(10.0 . #(,(delay (ly:font-load "uncb8a")))))
340 '((font-family . roman)
341 (font-shape . italic)
343 (font-encoding . latin1))
344 `(10.0 . #(,(delay (ly:font-load "uncbi8a"))))))
346 (define-public (make-cmr-tree factor)
347 (let ((n (make-font-tree-node 'font-encoding 'fetaMusic)))
348 (add-music-fonts n factor)
349 (add-cmr-fonts n factor)
350 (if (ly:kpathsea-find-file "lmr10.pfb")
351 (add-cork-lm-fonts n factor))
352 (if (ly:kpathsea-find-file "ecrm10.pfa")
353 (add-ec-fonts n factor))
356 (define-public (make-century-schoolbook-tree factor)
357 (let ((n (make-font-tree-node 'font-encoding 'fetaMusic)))
358 (add-music-fonts n factor)
359 (add-century-schoolbook-fonts n factor)
362 (define-public (magstep x)
363 (exp (* (/ x 6) (log 2))))