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)))
69 (define default-qualifier-order
70 '(font-encoding font-family font-shape font-series))
72 (define-method (add-font (node <Font-tree-node>) fprops size-family)
73 (define (assoc-delete key alist)
74 (assoc-remove! (list-copy alist) key))
75 (define (make-node fprops size-family)
77 (make-font-tree-leaf (car size-family) (cdr size-family))
79 ((qual (next-qualifier default-qualifier-order fprops)))
80 (make-font-tree-node qual
81 (assoc-get qual fprops)))
83 (define (next-qualifier order props)
85 ((and (null? props) (null? order))
87 ((null? props) (car order))
88 ((null? order) (caar props))
90 (if (assoc-get (car order) props)
92 (next-qualifier (cdr order) props))
96 ((q (font-qualifier node))
97 (d (font-default node))
98 (v (assoc-get q fprops d))
99 (new-fprops (assoc-delete q fprops))
100 (child (hashq-ref (slot-ref node 'children)
106 (set! child (make-node new-fprops size-family))
107 (hashq-set! (slot-ref node 'children) v child)))
108 (if (pair? new-fprops)
109 (add-font child new-fprops size-family))))
112 (define-method (add-font (node <Font-tree-leaf>) fprops size-family)
113 (throw "must add to node, not leaf"))
116 (define-method (g-lookup-font (node <Font-tree-node>) alist-chain)
118 ((qual (font-qualifier node))
119 (def (font-default node))
120 (val (chain-assoc-get qual alist-chain def))
121 (desired-child (hashq-ref (font-children node) val))
125 (g-lookup-font desired-child alist-chain)
126 (g-lookup-font (hashq-ref (font-children node) def) alist-chain)
129 (define-method (g-lookup-font (node <Font-tree-leaf>) alist-chain)
132 ;; two step call is handy for debugging.
133 (define (lookup-font node alist-chain)
134 (g-lookup-font node alist-chain))
138 (define-public (make-font-tree factor)
140 ((n (make-font-tree-node 'font-encoding 'music))
146 (list (cons 'font-encoding (car x)))
147 (cons (* factor (cadr x))
150 #(,(delay (ly:font-load "feta-nummer4"))
151 ,(delay (ly:font-load "feta-nummer6"))
152 ,(delay (ly:font-load "feta-nummer8"))
153 ,(delay (ly:font-load "feta-nummer10"))
154 ,(delay (ly:font-load "feta-nummer12"))
155 ,(delay (ly:font-load "feta-nummer16"))))
156 (dynamic 14.0 #(,(delay (ly:font-load "feta-din6"))
157 ,(delay (ly:font-load "feta-din8"))
158 ,(delay (ly:font-load "feta-din10"))
159 ,(delay (ly:font-load "feta-din12"))
160 ,(delay (ly:font-load "feta-din14"))
161 ,(delay (ly:font-load "feta-din17"))
163 (math 10 #(,(delay (ly:font-load "msam10"))))
165 #(,(delay (ly:make-virtual-font
166 (ly:font-load "feta11")
167 (ly:font-load "parmesan11")))
168 ,(delay (ly:make-virtual-font
169 (ly:font-load "feta13")
170 (ly:font-load "parmesan13")))
171 ,(delay (ly:make-virtual-font
172 (ly:font-load "feta14")
173 (ly:font-load "parmesan14")))
174 ,(delay (ly:make-virtual-font
175 (ly:font-load "feta16")
176 (ly:font-load "parmesan16")))
177 ,(delay (ly:make-virtual-font
178 (ly:font-load "feta18")
179 (ly:font-load "parmesan18")))
180 ,(delay (ly:make-virtual-font
181 (ly:font-load "feta20")
182 (ly:font-load "parmesan20")))
183 ,(delay (ly:make-virtual-font
184 (ly:font-load "feta23")
185 (ly:font-load "parmesan23")))
186 ,(delay (ly:make-virtual-font
187 (ly:font-load "feta26")
188 (ly:font-load "parmesan26")))
192 (ly:make-virtual-font
193 (ly:font-load "feta-braces00")
194 (ly:font-load "feta-braces10")
195 (ly:font-load "feta-braces20")
196 (ly:font-load "feta-braces30")
197 (ly:font-load "feta-braces40")
198 (ly:font-load "feta-braces50")
199 (ly:font-load "feta-braces60")
200 (ly:font-load "feta-braces70")
201 (ly:font-load "feta-braces80"))
208 `((font-encoding . text)
209 (font-series . ,(vector-ref (car x) 2))
210 (font-shape . ,(vector-ref (car x) 1))
211 (font-family . ,(vector-ref (car x) 0)))
212 (cons (* factor (cadr x))
215 `((#(roman upright medium) .
216 (10.0 . #(,(delay (ly:font-load "cmr6"))
217 ,(delay (ly:font-load "cmr8"))
218 ,(delay (ly:font-load "cmr10"))
219 ,(delay (ly:font-load "cmr17"))
222 (#(roman upright bold) .
223 (10.0 . #(,(delay (ly:font-load "cmbx6"))
224 ,(delay (ly:font-load "cmbx8"))
225 ,(delay (ly:font-load "cmbx10"))
226 ,(delay (ly:font-load "cmbx12"))
229 (#(roman italic medium) .
230 (10.0 . #(,(delay (ly:font-load "cmti7"))
231 ,(delay (ly:font-load "cmti10"))
232 ,(delay (ly:font-load "cmti12"))
234 (#(roman italic bold) .
235 (10.0 . #(,(delay (ly:font-load "cmbxti8"))
236 ,(delay (ly:font-load "cmbxti10"))
237 ,(delay (ly:font-load "cmbxti14"))
240 (#(roman caps medium) .
241 (10.0 . #(,(delay (ly:font-load "cmcsc10")))))
243 (#(roman upright bold-narrow ) .
244 (10.0 . #(,(delay (ly:font-load "cmb10"))
247 (#(sans upright medium) .
248 (10.0 . #(,(delay (ly:font-load "cmss8"))
249 ,(delay (ly:font-load "cmss10"))
250 ,(delay (ly:font-load "cmss12"))
251 ,(delay (ly:font-load "cmss17"))
253 (#(typewriter upright medium) .
254 (10.0 . #(,(delay (ly:font-load "cmtt8"))
255 ,(delay (ly:font-load "cmtt10"))
256 ,(delay (ly:font-load "cmtt12"))
261 ; (display (make-font-tree 1.0))
263 (define-public (magstep x)
264 (exp (* (/ x 6) (log 2))))