--- /dev/null
+;; As an excercise, do it with records.
+;; Should use GOOPS, really.
+
+;; TODO:
+;;
+;; lookup-font should be written in C.
+;;
+;; should dump tree to .texi as internal documentation
+;;
+;; * should extract design sizes from fonts.
+
+(define font-tree-record
+ (make-record-type
+ "font-tree-node"
+ '(qualifier default children)))
+
+(define-public font-tree-node?
+ (record-predicate font-tree-record))
+(define-public font-tree-default
+ (record-accessor font-tree-record 'default))
+(define-public font-tree-qualifier
+ (record-accessor font-tree-record 'qualifier))
+(define-public font-tree-children
+ (record-accessor font-tree-record 'children))
+
+
+(define (make-font-tree-node
+ qualifier default)
+ ((record-constructor font-tree-record)
+ qualifier
+ default
+ (make-hash-table 11))) ;ugh. hardcoded.
+
+(define default-qualifier-order
+ '(font-encoding font-family font-shape font-series))
+
+
+(define-public (add-font node fprops size-family)
+ (define (assoc-delete key alist)
+ (assoc-remove! (list-copy alist) key))
+ (define (make-node fprops size-family)
+ (if (null? fprops)
+ size-family
+ (let*
+ ((qual (next-qualifier default-qualifier-order fprops)))
+ (make-font-tree-node qual
+ (assoc-get qual fprops)))
+ ))
+ (define (next-qualifier order props)
+ (cond
+ ((and (null? props) (null? order))
+ #f)
+ ((null? props) (car order))
+ ((null? order) (caar props))
+ (else
+ (if (assoc-get (car order) props)
+ (car order)
+ (next-qualifier (cdr order) props))
+ )))
+
+ (if (font-tree-node? node)
+ (let*
+ ((q (font-tree-qualifier node))
+ (d (font-tree-default node))
+ (v (assoc-get q fprops d))
+ (new-fprops (assoc-delete q fprops))
+ (child (hashq-ref (font-tree-children node)
+ v #f)))
+
+
+ (if (not child)
+ (begin
+ (set! child (make-node new-fprops size-family))
+ (hashq-set! (font-tree-children node) v child)))
+
+ (add-font child new-fprops size-family))
+ (if (not (equal? size-family node))
+ (throw 'invalid-font props size-family)))
+ )
+
+(define-public (display-font-node node . rest)
+ (let*
+ ((port (if (pair? rest) (car rest) (current-output-port)))
+ )
+ (cond
+ ((font-tree-node? node)
+ (map
+ (lambda (x)
+ (display x port))
+
+ (list
+ "Font_node { \nqual: "
+ (font-tree-qualifier node)
+ "(def: "
+ (font-tree-default node)
+ ") {\n"))
+ (for-each
+ (lambda (x)
+ (display "\n")
+ (display (car x) port)
+ (display "=" port)
+ (display-font-node (cdr x) port))
+ (hash-table->alist (font-tree-children node)))
+ (display "} } \n"))
+
+ (else
+ (display node port))))
+ )
+
+(define-public (lookup-font node alist-chain)
+ (cond
+ ((font-tree-node? node)
+ (let*
+ ((qual (font-tree-qualifier node))
+ (def (font-tree-default node))
+ (val (chain-assoc-get qual alist-chain def))
+ (desired-font (lookup-font
+ (hashq-ref (font-tree-children node)
+ val) alist-chain))
+ (font (if desired-font
+ desired-font
+ (lookup-font (hashq-ref (font-tree-children node)
+ def) alist-chain)))
+ )
+ font))
+ (else node)))
+
+(define-public (make-font-tree factor)
+ (let*
+ ((n (make-font-tree-node 'font-encoding 'music))
+ )
+
+ (for-each
+ (lambda (x)
+ (add-font n
+ (list (cons 'font-encoding (car x)))
+ (cons (* factor (cadr x))
+ (caddr x))))
+ '((number 10
+ #((3.82 . "feta-nummer4")
+ (5.5 . "feta-nummer6")
+ (8.0 . "feta-nummer8")
+ (10.0 . "feta-nummer10")
+ (12.0 . "feta-nummer12")
+ (16.0 . "feta-nummer16")))
+ (dynamic 14.0 #((6.0 . "feta-din6")
+ (8.0 . "feta-din8")
+ (10.0 . "feta-din10")
+ (12.0 . "feta-din12")
+ (14.0 . "feta-din14")
+ (17.0 . "feta-din17")
+ ))
+ (math 10 #((10.0 . "msam10")))
+ (music 20.0
+ #((11.22 . ("feta11" "parmesan11"))
+ (12.60 . ("feta13" "parmesan13"))
+ (14.14 . ("feta14" "parmesan14"))
+ (15.87 . ("feta16" "parmesan16"))
+ (17.82 . ("feta18" "parmesan18"))
+ (20.0 . ("feta20" "parmesan20"))
+ (22.45 . ("feta23" "parmesan23"))
+ (25.20 . ("feta26" "parmesan26"))
+ ))
+ (braces 10 #((10.0 . ("feta-braces00"
+ "feta-braces10"
+ "feta-braces20"
+ "feta-braces30"
+ "feta-braces40"
+ "feta-braces50"
+ "feta-braces60"
+ "feta-braces70"
+ "feta-braces80"))
+ ))))
+
+ (for-each
+ (lambda (x)
+ (add-font
+ n
+ `((font-encoding . text)
+ (font-series . ,(vector-ref (car x) 2))
+ (font-shape . ,(vector-ref (car x) 1))
+ (font-family . ,(vector-ref (car x) 0)))
+ (cons (* factor (cadr x))
+ (cddr x))
+ ))
+ '((#(roman upright medium) .
+ (10.0 . #((6.0 . "cmr6")
+ (8.0 . "cmr8")
+ (10.0 . "cmr10")
+ (17.0 . "cmr17")
+ )))
+
+ (#(roman upright bold) .
+ (10.0 . #((6.0 . "cmbx6")
+ (8.0 . "cmbx8")
+ (10.0 . "cmbx10")
+ (12.0 . "cmbx12")
+ )))
+
+ (#(roman italic medium) .
+ (10.0 . #((7.0 . "cmti7")
+ (10.0 . "cmti10")
+ (12.0 . "cmti12")
+ )))
+ (#(roman italic bold) .
+ (10.0 . #((8.0 . "cmbxti8")
+ (10.0 . "cmbxti10")
+ (14.0 . "cmbxti14")
+ )))
+
+ (#(roman caps medium) .
+ (10.0 . #((10.0 . "cmcsc10"))))
+
+ (#(roman upright bold-narrow ) .
+ (10.0 . #((10.0 . "cmb10")
+ )))
+
+ (#(sans upright medium) .
+ (10.0 . #((8.0 . "cmss8")
+ (10.0 . "cmss10")
+ (12.0 . "cmss12")
+ (17.0 . "cmss17")
+ )))
+ (#(typewriter upright medium) .
+ (10.0 . #((8.0 . "cmtt8")
+ (10.0 . "cmtt10")
+ (12.0 . "cmtt12")
+ )))
+ ))
+ n))
+
+(define-public (magstep x)
+ (exp (* (/ x 6) (log 2))))
+++ /dev/null
-;; As an excercise, do it with records.
-;; Should use GOOPS, really.
-
-;; TODO:
-;;
-;; lookup-font should be written in C.
-;;
-;; should dump tree to .texi as internal documentation
-;;
-;; * should extract design sizes from fonts.
-
-(define font-tree-record
- (make-record-type
- "font-tree-node"
- '(qualifier default children)))
-
-(define-public font-tree-node?
- (record-predicate font-tree-record))
-(define-public font-tree-default
- (record-accessor font-tree-record 'default))
-(define-public font-tree-qualifier
- (record-accessor font-tree-record 'qualifier))
-(define-public font-tree-children
- (record-accessor font-tree-record 'children))
-
-
-(define (make-font-tree-node
- qualifier default)
- ((record-constructor font-tree-record)
- qualifier
- default
- (make-hash-table 11))) ;ugh. hardcoded.
-
-(define default-qualifier-order
- '(font-encoding font-family font-shape font-series))
-
-
-(define-public (add-font node fprops size-family)
- (define (assoc-delete key alist)
- (assoc-remove! (list-copy alist) key))
- (define (make-node fprops size-family)
- (if (null? fprops)
- size-family
- (let*
- ((qual (next-qualifier default-qualifier-order fprops)))
- (make-font-tree-node qual
- (assoc-get qual fprops)))
- ))
- (define (next-qualifier order props)
- (cond
- ((and (null? props) (null? order))
- #f)
- ((null? props) (car order))
- ((null? order) (caar props))
- (else
- (if (assoc-get (car order) props)
- (car order)
- (next-qualifier (cdr order) props))
- )))
-
- (if (font-tree-node? node)
- (let*
- ((q (font-tree-qualifier node))
- (d (font-tree-default node))
- (v (assoc-get q fprops d))
- (new-fprops (assoc-delete q fprops))
- (child (hashq-ref (font-tree-children node)
- v #f)))
-
-
- (if (not child)
- (begin
- (set! child (make-node new-fprops size-family))
- (hashq-set! (font-tree-children node) v child)))
-
- (add-font child new-fprops size-family))
- (if (not (equal? size-family node))
- (throw 'invalid-font props size-family)))
- )
-
-(define-public (display-font-node node . rest)
- (let*
- ((port (if (pair? rest) (car rest) (current-output-port)))
- )
- (cond
- ((font-tree-node? node)
- (map
- (lambda (x)
- (display x port))
-
- (list
- "Font_node { \nqual: "
- (font-tree-qualifier node)
- "(def: "
- (font-tree-default node)
- ") {\n"))
- (for-each
- (lambda (x)
- (display "\n")
- (display (car x) port)
- (display "=" port)
- (display-font-node (cdr x) port))
- (hash-table->alist (font-tree-children node)))
- (display "} } \n"))
-
- (else
- (display node port))))
- )
-
-(define-public (lookup-font node alist-chain)
- (cond
- ((font-tree-node? node)
- (let*
- ((qual (font-tree-qualifier node))
- (def (font-tree-default node))
- (val (chain-assoc-get qual alist-chain def))
- (desired-font (lookup-font
- (hashq-ref (font-tree-children node)
- val) alist-chain))
- (font (if desired-font
- desired-font
- (lookup-font (hashq-ref (font-tree-children node)
- def) alist-chain)))
- )
- font))
- (else node)))
-
-(define-public (make-font-tree factor)
- (let*
- ((n (make-font-tree-node 'font-encoding 'music))
- )
-
- (for-each
- (lambda (x)
- (add-font n
- (list (cons 'font-encoding (car x)))
- (cons (* factor (cadr x))
- (caddr x))))
- '((number 10
- #((3.82 . "feta-nummer4")
- (5.5 . "feta-nummer6")
- (8.0 . "feta-nummer8")
- (10.0 . "feta-nummer10")
- (12.0 . "feta-nummer12")
- (16.0 . "feta-nummer16")))
- (dynamic 14.0 #((6.0 . "feta-din6")
- (8.0 . "feta-din8")
- (10.0 . "feta-din10")
- (12.0 . "feta-din12")
- (14.0 . "feta-din14")
- (17.0 . "feta-din17")
- ))
- (math 10 #((10.0 . "msam10")))
- (music 20.0
- #((11.22 . ("feta11" "parmesan11"))
- (12.60 . ("feta13" "parmesan13"))
- (14.14 . ("feta14" "parmesan14"))
- (15.87 . ("feta16" "parmesan16"))
- (17.82 . ("feta18" "parmesan18"))
- (20.0 . ("feta20" "parmesan20"))
- (22.45 . ("feta23" "parmesan23"))
- (25.20 . ("feta26" "parmesan26"))
- ))
- (braces 10 #((10.0 . ("feta-braces00"
- "feta-braces10"
- "feta-braces20"
- "feta-braces30"
- "feta-braces40"
- "feta-braces50"
- "feta-braces60"
- "feta-braces70"
- "feta-braces80"))
- ))))
-
- (for-each
- (lambda (x)
- (add-font
- n
- `((font-encoding . text)
- (font-series . ,(vector-ref (car x) 2))
- (font-shape . ,(vector-ref (car x) 1))
- (font-family . ,(vector-ref (car x) 0)))
- (cons (* factor (cadr x))
- (cddr x))
- ))
- '((#(roman upright medium) .
- (10.0 . #((6.0 . "cmr6")
- (8.0 . "cmr8")
- (10.0 . "cmr10")
- (17.0 . "cmr17")
- )))
-
- (#(roman upright bold) .
- (10.0 . #((6.0 . "cmbx6")
- (8.0 . "cmbx8")
- (10.0 . "cmbx10")
- (12.0 . "cmbx12")
- )))
-
- (#(roman italic medium) .
- (10.0 . #((7.0 . "cmti7")
- (10.0 . "cmti10")
- (12.0 . "cmti12")
- )))
- (#(roman italic bold) .
- (10.0 . #((8.0 . "cmbxti8")
- (10.0 . "cmbxti10")
- (14.0 . "cmbxti14")
- )))
-
- (#(roman caps medium) .
- (10.0 . #((10.0 . "cmcsc10"))))
-
- (#(roman upright bold-narrow ) .
- (10.0 . #((10.0 . "cmb10")
- )))
-
- (#(sans upright medium) .
- (10.0 . #((8.0 . "cmss8")
- (10.0 . "cmss10")
- (12.0 . "cmss12")
- (17.0 . "cmss17")
- )))
- (#(typewriter upright medium) .
- (10.0 . #((8.0 . "cmtt8")
- (10.0 . "cmtt10")
- (12.0 . "cmtt12")
- )))
- ))
- n))
-
-(define-public (magstep x)
- (exp (* (/ x 6) (log 2))))
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