X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=scm%2Ffont.scm;h=539e1aaee21ec42d4629a1c391b6db98b15546f1;hb=e90f0536f9be39ada0bef0aeb0d275dec3b2fb5b;hp=c29258860c2a6cabedf3623a3ec7c25da3fb21d8;hpb=a8c9e8a7ca320ab0df5fd32e717fd62cd7635ce6;p=lilypond.git diff --git a/scm/font.scm b/scm/font.scm index c29258860c..539e1aaee2 100644 --- a/scm/font.scm +++ b/scm/font.scm @@ -1,14 +1,32 @@ -;;;; font.scm -- construct font trees +;;;; This file is part of LilyPond, the GNU music typesetter. ;;;; -;;;; source file of the GNU LilyPond music typesetter -;;;; -;;;; (c) 2004--2009 Han-Wen Nienhuys +;;;; Copyright (C) 2004--2011 Han-Wen Nienhuys +;;;; +;;;; LilyPond is free software: you can redistribute it and/or modify +;;;; it under the terms of the GNU General Public License as published by +;;;; the Free Software Foundation, either version 3 of the License, or +;;;; (at your option) any later version. +;;;; +;;;; LilyPond is distributed in the hope that it will be useful, +;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of +;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +;;;; GNU General Public License for more details. +;;;; +;;;; You should have received a copy of the GNU General Public License +;;;; along with LilyPond. If not, see . ;; TODO: ;; ;; lookup-font should be written in C. ;; +;; We have a tree, where each level of the tree is a qualifier +;; (eg. encoding, family, shape, series etc.) this defines the levels +;; in the tree. The first one is encoding, so we can directly select +;; between text or music in the first step of the selection. +(define default-qualifier-order + '(font-encoding font-family font-shape font-series)) + (define-class ()) @@ -28,14 +46,14 @@ qualifier default) (make #:qualifier qualifier - #:default default + #:default default #:children (make-hash-table 11))) (define-method (display (leaf ) port) (map (lambda (x) (display x port)) (list "#" ))) @@ -50,7 +68,7 @@ "(def: " (font-default node) ") {\n")) - (for-each + (for-each (lambda (x) (display "\n") (display (car x) port) @@ -59,13 +77,11 @@ (hash-table->alist (font-children node))) (display "} }\n")) -(define default-qualifier-order - '(font-encoding font-family font-shape font-series)) (define-method (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) (make-font-tree-leaf (car size-family) (cdr size-family)) @@ -117,51 +133,80 @@ (define (lookup-font node alist-chain) (g-lookup-font node alist-chain)) - -;; Ugh. Currently, we load the PFB Feta fonts for `fetaDynamic' with -;; Pango. This should be changed to load the Emmentaler fonts instead -;; (with Pango too), but then we need support for a `font-style' -;; property which isn't implemented yet. -(define feta-alphabet-size-vector - (list->vector - (map (lambda (tup) - (cons (ly:pt (cdr tup)) - (format "feta-alphabet~a ~a" - (car tup) - (ly:pt (cdr tup))))) - '((11 . 11.22) - (13 . 12.60) - (14 . 14.14) - (16 . 15.87) - (18 . 17.82) - (20 . 20) - (23 . 22.45) - (26 . 25.20))))) +;; TODO - we could actually construct this by loading all OTFs and +;; inspecting their design size fields. +(define-public feta-design-size-mapping + '((11 . 11.22) + (13 . 12.60) + (14 . 14.14) + (16 . 15.87) + (18 . 17.82) + (20 . 20) + (23 . 22.45) + (26 . 25.20))) ;; Each size family is a vector of fonts, loaded with a delay. The ;; vector should be sorted according to ascending design size. -(define-public (add-music-fonts node factor) +(define-public (add-music-fonts node name family design-size-alist factor) + "Set up music fonts. + +Arguments: +@itemize +@item +@var{node} is the font tree to modify. + +@item +@var{name} is the basename for the music font. +@file{@var{name}-.otf} should be the music font, +@file{@var{name}-brace.otf} should have piano braces. + +@item +@var{family} is the family name of the music font. + +@item +@var{design-size-alist} is a list of @code{(rounded . designsize)}. +@code{rounded} is a suffix for font filenames, while @code{designsize} +should be the actual design size. The latter is used for text fonts +loaded through pango/fontconfig. + +@item +@var{factor} is a size factor relative to the default size that is being +used. This is used to select the proper design size for the text fonts. +@end itemize" (for-each (lambda (x) (add-font node - (list (cons 'font-encoding (car x))) + (list (cons 'font-encoding (car x)) + (cons 'font-family family)) (cons (* factor (cadr x)) (caddr x)))) - `((fetaDynamic ,(ly:pt 20.0) ,feta-alphabet-size-vector) - (fetaNumber ,(ly:pt 20.0) ,feta-alphabet-size-vector) + + `((fetaText ,(ly:pt 20.0) + ,(list->vector + (map (lambda (tup) + (cons (ly:pt (cdr tup)) + (format "~a-~a ~a" + name + (car tup) + (ly:pt (cdr tup))))) + design-size-alist))) (fetaMusic ,(ly:pt 20.0) - #(,(delay (ly:system-font-load "emmentaler-11")) - ,(delay (ly:system-font-load "emmentaler-13")) - ,(delay (ly:system-font-load "emmentaler-14")) - ,(delay (ly:system-font-load "emmentaler-16")) - ,(delay (ly:system-font-load "emmentaler-18")) - ,(delay (ly:system-font-load "emmentaler-20")) - ,(delay (ly:system-font-load "emmentaler-23")) - ,(delay (ly:system-font-load "emmentaler-26")))) + ,(list->vector + (map (lambda (size-tup) + (delay (ly:system-font-load + (format "~a-~a" name (car size-tup))))) + design-size-alist + ))) (fetaBraces ,(ly:pt 20.0) - #(,(delay (ly:system-font-load "aybabtu"))))))) - + #(,(delay (ly:system-font-load + (format "~a-brace" name))))) + ))) + (define-public (add-pango-fonts node lily-family family factor) + ;; Synchronized with the `text-font-size' variable in + ;; layout-set-absolute-staff-size-in-module (see paper.scm). + (define text-font-size (ly:pt (* factor 11.0))) + (define (add-node shape series) (add-font node `((font-family . ,lily-family) @@ -169,7 +214,7 @@ (font-series . ,series) (font-encoding . latin1) ;; ugh. ) - `(,(ly:pt (* factor 11.0)) + `(,text-font-size . #(,(cons (ly:pt 12) (ly:make-pango-description-string @@ -178,15 +223,15 @@ (font-shape . ,shape))) (ly:pt 12))))))) - (add-node 'upright 'normal) - (add-node 'caps 'normal) - (add-node 'upright 'bold) + (add-node 'upright 'normal) + (add-node 'caps 'normal) + (add-node 'upright 'bold) (add-node 'italic 'normal) (add-node 'italic 'bold)) (define-public (make-pango-font-tree roman-str sans-str typewrite-str factor) (let ((n (make-font-tree-node 'font-encoding 'fetaMusic))) - (add-music-fonts n factor) + (add-music-fonts n "emmentaler" 'feta feta-design-size-mapping factor) (add-pango-fonts n 'roman roman-str factor) (add-pango-fonts n 'sans sans-str factor) (add-pango-fonts n 'typewriter typewrite-str factor) @@ -194,8 +239,16 @@ (define-public (make-century-schoolbook-tree factor) (make-pango-font-tree - "Century Schoolbook L" - "Sans" "Mono" factor)) + "Century Schoolbook L" + "sans-serif" "monospace" factor)) + +(define-public all-text-font-encodings + '(latin1)) + +(define-public all-music-font-encodings + '(fetaBraces + fetaMusic + fetaText)) (define-public (magstep s) (exp (* (/ s 6) (log 2))))