1 ;; As an excercise, do it with records.
2 ;; Should use GOOPS, really.
6 ;; lookup-font should be written in C.
8 ;; should dump tree to .texi as internal documentation
10 ;; * should extract design sizes from fonts: fonts should
11 ;; be read off the disk, on demand, something like:
13 ;; cmr -> ((font-load "cmr6") (font-load "cmr8") .. )
16 (define-class <Font-tree-element>
20 (define-class <Font-tree-leaf> (<Font-tree-element>)
21 (default-size #:init-keyword #:default-size)
22 (size-vector #:init-keyword #:size-vector))
24 (define-class <Font-tree-node> (<Font-tree-element>)
25 (qualifier #:init-keyword #:qualifier #:accessor font-qualifier)
26 (default #:init-keyword #:default #:accessor font-default)
27 (children #:init-keyword #:children #:accessor font-children))
29 (define (make-font-tree-leaf size size-font-vector)
30 (make <Font-tree-leaf> #:default-size size #:size-vector size-font-vector))
32 (define (make-font-tree-node
34 (make <Font-tree-node>
37 #:children (make-hash-table 11)))
39 (define-method (display (leaf <Font-tree-leaf>) port)
40 (map (lambda (x) (display x port))
42 "Font-size-family: \n"
43 (slot-ref leaf 'default-size)
44 (slot-ref leaf 'size-vector) )))
46 (define-method (display (node <Font-tree-node>) port)
53 "Font_node { \nqual: "
61 (display (car x) port)
63 (display (cdr x) port))
64 (hash-table->alist (font-children node)))
68 (define default-qualifier-order
69 '(font-encoding font-family font-shape font-series))
71 (define-method (add-font (node <Font-tree-node>) fprops size-family)
72 (define (assoc-delete key alist)
73 (assoc-remove! (list-copy alist) key))
74 (define (make-node fprops size-family)
76 (make-font-tree-leaf (car size-family) (cdr size-family))
78 ((qual (next-qualifier default-qualifier-order fprops)))
79 (make-font-tree-node qual
80 (assoc-get qual fprops)))
82 (define (next-qualifier order props)
84 ((and (null? props) (null? order))
86 ((null? props) (car order))
87 ((null? order) (caar props))
89 (if (assoc-get (car order) props)
91 (next-qualifier (cdr order) props))
95 ((q (font-qualifier node))
96 (d (font-default node))
97 (v (assoc-get q fprops d))
98 (new-fprops (assoc-delete q fprops))
99 (child (hashq-ref (slot-ref node 'children)
105 (set! child (make-node new-fprops size-family))
106 (hashq-set! (slot-ref node 'children) v child)))
107 (if (pair? new-fprops)
108 (add-font child new-fprops size-family))))
111 (define-method (add-font (node <Font-tree-leaf>) fprops size-family)
112 (throw "must add to node, not leaf"))
115 (define-method (g-lookup-font (node <Font-tree-node>) alist-chain)
117 ((qual (font-qualifier node))
118 (def (font-default node))
119 (val (chain-assoc-get qual alist-chain def))
120 (desired-child (hashq-ref (font-children node) val))
124 (g-lookup-font desired-child alist-chain)
125 (g-lookup-font (hashq-ref (font-children node) def) alist-chain)
128 (define-method (g-lookup-font (node <Font-tree-leaf>) alist-chain)
131 ;; two step call is handy for debugging.
132 (define (lookup-font node alist-chain)
133 (g-lookup-font node alist-chain))
136 ; Each size family is a vector of fonts, loaded with a delay.
137 ; The vector should be sorted according to ascending design size.
140 (define-public (add-music-fonts node factor)
144 (list (cons 'font-encoding (car x)))
145 (cons (* factor (cadr x))
148 #(,(delay (ly:font-load "feta-nummer4"))
149 ,(delay (ly:font-load "feta-nummer6"))
150 ,(delay (ly:font-load "feta-nummer8"))
151 ,(delay (ly:font-load "feta-nummer10"))
152 ,(delay (ly:font-load "feta-nummer12"))
153 ,(delay (ly:font-load "feta-nummer16"))))
154 (fetaDynamic 14.0 #(,(delay (ly:font-load "feta-din6"))
155 ,(delay (ly:font-load "feta-din8"))
156 ,(delay (ly:font-load "feta-din10"))
157 ,(delay (ly:font-load "feta-din12"))
158 ,(delay (ly:font-load "feta-din14"))
159 ,(delay (ly:font-load "feta-din17"))
162 #(,(delay (ly:make-virtual-font
163 (ly:font-load "feta11")
164 (ly:font-load "parmesan11")))
165 ,(delay (ly:make-virtual-font
166 (ly:font-load "feta13")
167 (ly:font-load "parmesan13")))
168 ,(delay (ly:make-virtual-font
169 (ly:font-load "feta14")
170 (ly:font-load "parmesan14")))
171 ,(delay (ly:make-virtual-font
172 (ly:font-load "feta16")
173 (ly:font-load "parmesan16")))
174 ,(delay (ly:make-virtual-font
175 (ly:font-load "feta18")
176 (ly:font-load "parmesan18")))
177 ,(delay (ly:make-virtual-font
178 (ly:font-load "feta20")
179 (ly:font-load "parmesan20")))
180 ,(delay (ly:make-virtual-font
181 (ly:font-load "feta23")
182 (ly:font-load "parmesan23")))
183 ,(delay (ly:make-virtual-font
184 (ly:font-load "feta26")
185 (ly:font-load "parmesan26")))
188 (fetaBraces 15 #(,(delay
189 (ly:make-virtual-font
190 (ly:font-load "feta-braces-a")
191 (ly:font-load "feta-braces-b")
192 (ly:font-load "feta-braces-c")
193 (ly:font-load "feta-braces-d")
194 (ly:font-load "feta-braces-e")
195 (ly:font-load "feta-braces-f")
196 (ly:font-load "feta-braces-g")
197 (ly:font-load "feta-braces-h")
198 (ly:font-load "feta-braces-i"))
202 (define-public (add-cmr-fonts node factor)
205 '((font-encoding . TeX-math))
206 `(,(* factor 10) . #(,(delay (ly:font-load "msam10")))))
212 `((font-encoding . TeX-text)
213 (font-series . ,(vector-ref (car x) 2))
214 (font-shape . ,(vector-ref (car x) 1))
215 (font-family . ,(vector-ref (car x) 0)))
216 (cons (* factor (cadr x))
219 `((#(roman upright medium) .
220 (10.0 . #(,(delay (ly:font-load "cmr6"))
221 ,(delay (ly:font-load "cmr8"))
222 ,(delay (ly:font-load "cmr10"))
223 ,(delay (ly:font-load "cmr17"))
226 (#(roman upright bold) .
227 (10.0 . #(,(delay (ly:font-load "cmbx6"))
228 ,(delay (ly:font-load "cmbx8"))
229 ,(delay (ly:font-load "cmbx10"))
230 ,(delay (ly:font-load "cmbx12"))
233 (#(roman italic medium) .
234 (10.0 . #(,(delay (ly:font-load "cmti7"))
235 ,(delay (ly:font-load "cmti10"))
236 ,(delay (ly:font-load "cmti12"))
238 (#(roman italic bold) .
239 (10.0 . #(,(delay (ly:font-load "cmbxti8"))
240 ,(delay (ly:font-load "cmbxti10"))
241 ,(delay (ly:font-load "cmbxti14"))
244 (#(roman caps medium) .
245 (10.0 . #(,(delay (ly:font-load "cmcsc10")))))
247 (#(roman upright bold-narrow ) .
248 (10.0 . #(,(delay (ly:font-load "cmb10"))
251 (#(sans upright medium) .
252 (10.0 . #(,(delay (ly:font-load "cmss8"))
253 ,(delay (ly:font-load "cmss10"))
254 ,(delay (ly:font-load "cmss12"))
255 ,(delay (ly:font-load "cmss17"))
257 (#(typewriter upright medium) .
258 (10.0 . #(,(delay (ly:font-load "cmtt8"))
259 ,(delay (ly:font-load "cmtt10"))
260 ,(delay (ly:font-load "cmtt12"))
267 `((font-encoding . latin1)
268 (font-series . ,(vector-ref (car x) 2))
269 (font-shape . ,(vector-ref (car x) 1))
270 (font-family . ,(vector-ref (car x) 0)))
271 (cons (* factor (cadr x))
274 `((#(roman upright medium) .
275 (10.0 . #(,(delay (ly:font-load "ecrm6"))
276 ,(delay (ly:font-load "ecrm8"))
277 ,(delay (ly:font-load "ecrm10"))
278 ,(delay (ly:font-load "ecrm17"))
281 (#(roman upright bold) .
282 (10.0 . #(,(delay (ly:font-load "ecbx6"))
283 ,(delay (ly:font-load "ecbx8"))
284 ,(delay (ly:font-load "ecbx10"))
285 ,(delay (ly:font-load "ecbx12"))
288 (#(roman italic medium) .
289 (10.0 . #(,(delay (ly:font-load "ecti7"))
290 ,(delay (ly:font-load "ecti10"))
291 ,(delay (ly:font-load "ecti12"))
293 (#(roman italic bold) .
294 (10.0 . #(,(delay (ly:font-load "ecbxti8"))
295 ,(delay (ly:font-load "ecbxti10"))
296 ,(delay (ly:font-load "ecbxti14"))
299 (#(roman caps medium) .
300 (10.0 . #(,(delay (ly:font-load "ecsc10")))))
302 (#(roman upright bold-narrow ) .
303 (10.0 . #(,(delay (ly:font-load "ecb10"))
306 (#(sans upright medium) .
307 (10.0 . #(,(delay (ly:font-load "ecss8"))
308 ,(delay (ly:font-load "ecss10"))
309 ,(delay (ly:font-load "ecss12"))
310 ,(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"))
320 ;; (display (make-font-tree 1.0))
322 ;; Century Schoolbook fonts filenames on Debian/Sid
323 (define-public (add-century-schoolbook-fonts node factor)
326 '((font-family . roman)
327 (font-shape . upright)
328 (font-series . medium)
329 (font-encoding . latin1))
330 `(10.0 . #(,(delay (ly:font-load "c059013l")))))
333 '((font-family . roman)
334 (font-shape . italic)
335 (font-series . medium)
336 (font-encoding . latin1))
337 `(10.0 . #(,(delay (ly:font-load "c059033l")))))
340 '((font-family . roman)
341 (font-shape . upright)
343 (font-encoding . latin1))
344 `(10.0 . #(,(delay (ly:font-load "c059016l")))))
347 '((font-family . roman)
348 (font-shape . italic)
350 (font-encoding . latin1))
351 `(10.0 . #(,(delay (ly:font-load "c059036l")))))
355 (define-public (make-cmr-tree factor)
358 ((n (make-font-tree-node 'font-encoding 'music)))
360 (add-music-fonts n factor)
361 (add-cmr-fonts n factor)
366 (define-public (make-century-schoolbook-tree factor)
369 ((n (make-font-tree-node 'font-encoding 'music)))
371 (add-music-fonts n factor)
372 (add-century-schoolbook-fonts n factor)
378 (define-public (magstep x)
379 (exp (* (/ x 6) (log 2))))