-;;;; output-lib.scm -- implement Scheme output helper functions
+;;;; This file is part of LilyPond, the GNU music typesetter.
;;;;
-;;;; source file of the GNU LilyPond music typesetter
-;;;;
-;;;; (c) 1998--2006 Jan Nieuwenhuizen <janneke@gnu.org>
+;;;; Copyright (C) 1998--2012 Jan Nieuwenhuizen <janneke@gnu.org>
;;;; Han-Wen Nienhuys <hanwen@xs4all.nl>
-
-
+;;;;
+;;;; 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 <http://www.gnu.org/licenses/>.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; general
-(define-public (make-stencil-boxer thickness padding callback)
+(define-public (grob::has-interface grob iface)
+ (memq iface (ly:grob-interfaces grob)))
+(define-public (grob::is-live? grob)
+ (pair? (ly:grob-basic-properties grob)))
+
+(define-public (grob::x-parent-width grob)
+ (ly:grob-property (ly:grob-parent grob X) 'X-extent))
+
+(define-public (make-stencil-boxer thickness padding callback)
"Return function that adds a box around the grob passed as argument."
(lambda (grob)
-
(box-stencil (callback grob) thickness padding)))
(define-public (make-stencil-circler thickness padding callback)
"Return function that adds a circle around the grob passed as argument."
-
- (lambda (grob) (circle-stencil (callback grob) thickness padding)))
+ (lambda (grob)
+ (circle-stencil (callback grob) thickness padding)))
(define-public (print-circled-text-callback grob)
- (let* ((text (ly:grob-property grob 'text))
-
- (layout (ly:grob-layout grob))
- (defs (ly:output-def-lookup layout 'text-font-defaults))
- (props (ly:grob-alist-chain grob defs))
- (circle (ly:text-interface::interpret-markup
- layout props (make-circle-markup text))))
- circle))
-
-(define-public (music-cause grob)
- (let*
- ((event (event-cause grob)))
-
- (if (ly:stream-event? event)
- (ly:event-property event 'music-cause)
- #f)))
+ (grob-interpret-markup grob (make-circle-markup
+ (ly:grob-property grob 'text))))
(define-public (event-cause grob)
- (let*
- ((cause (ly:grob-property grob 'cause)))
-
+ (let ((cause (ly:grob-property grob 'cause)))
+
(cond
((ly:stream-event? cause) cause)
((ly:grob? cause) (event-cause cause))
(else #f))))
+(define-public (grob-interpret-markup grob text)
+ (let* ((layout (ly:grob-layout grob))
+ (defs (ly:output-def-lookup layout 'text-font-defaults))
+ (props (ly:grob-alist-chain grob defs)))
+
+ (ly:text-interface::interpret-markup layout props text)))
+
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;; tablature
-
-;; The TabNoteHead tablatureFormat callback.
-;; Compute the text grob-property
-(define-public (fret-number-tablature-format string tuning pitch)
- (make-whiteout-markup
- (make-vcenter-markup
- (number->string
- (- (ly:pitch-semitones pitch)
- (list-ref tuning
- ;; remove 1 because list index starts at 0 and guitar string at 1.
- (- string 1)))))))
-
-;; The 5-string banjo has got a extra string, the fifth (duh), wich
-;; starts at the fifth fret on the neck. Frets on the fifth string
-;; are referred to relative to the other frets:
-;; the "first fret" on the fifth string is really the sixth fret
-;; on the banjo neck.
-;; We solve this by defining a new fret-number-tablature function:
-(define-public (fret-number-tablature-format-banjo string tuning pitch)
- (make-whiteout-markup
- (make-vcenter-markup
- (let ((fret (- (ly:pitch-semitones pitch) (list-ref tuning (- string 1)))))
- (number->string (cond
- ((and (> fret 0) (= string 5))
- (+ fret 5))
- (else fret)))))))
-
-
-; default tunings for common string instruments
-(define-public guitar-tuning '(4 -1 -5 -10 -15 -20))
-(define-public guitar-open-g-tuning '(2 -1 -5 -10 -17 -22))
-(define-public bass-tuning '(-17 -22 -27 -32))
-(define-public mandolin-tuning '(16 9 2 -5))
-
-;; tunings for 5-string banjo
-(define-public banjo-open-g-tuning '(2 -1 -5 -10 7))
-(define-public banjo-c-tuning '(2 -1 -5 -12 7))
-(define-public banjo-modal-tuning '(2 0 -5 -10 7))
-(define-public banjo-open-d-tuning '(2 -3 -6 -10 9))
-(define-public banjo-open-dm-tuning '(2 -3 -6 -10 9))
-;; convert 5-string banjo tuning to 4-string by removing the 5th string
-(define-public (four-string-banjo tuning)
- (reverse (cdr (reverse tuning))))
+;; beam slope
+
+;; calculates each slope of a broken beam individually
+(define-public (beam::place-broken-parts-individually grob)
+ (ly:beam::quanting grob '(+inf.0 . -inf.0) #f))
+
+;; calculates the slope of a beam as a single unit,
+;; even if it is broken. this assures that the beam
+;; will pick up where it left off after a line break
+(define-public (beam::align-with-broken-parts grob)
+ (ly:beam::quanting grob '(+inf.0 . -inf.0) #t))
+
+;; uses the broken beam style from edition peters combines the
+;; values of place-broken-parts-individually and align-with-broken-parts above,
+;; favoring place-broken-parts-individually when the beam naturally has a steeper
+;; incline and align-with-broken-parts when the beam is flat
+(define-public (beam::slope-like-broken-parts grob)
+ (define (slope y x)
+ (/ (- (cdr y) (car y)) (- (cdr x) (car x))))
+ (let* ((quant1 (ly:beam::quanting grob '(+inf.0 . -inf.0) #t))
+ (original (ly:grob-original grob))
+ (siblings (if (ly:grob? original)
+ (ly:spanner-broken-into original)
+ '())))
+ (if (null? siblings)
+ quant1
+ (let* ((quant2 (ly:beam::quanting grob '(+inf.0 . -inf.0) #f))
+ (x-span (ly:grob-property grob 'X-positions))
+ (slope1 (slope quant1 x-span))
+ (slope2 (slope quant2 x-span))
+ (quant2 (if (not (= (sign slope1) (sign slope2)))
+ '(0 . 0)
+ quant2))
+ (factor (/ (atan (abs slope1)) PI-OVER-TWO))
+ (base (cons-map
+ (lambda (x)
+ (+ (* (x quant1) (- 1 factor))
+ (* (x quant2) factor)))
+ (cons car cdr))))
+ (ly:beam::quanting grob base #f)))))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;; note heads
+;; cross-staff stuff
+(define-public (script-or-side-position-cross-staff g)
+ (or
+ (ly:script-interface::calc-cross-staff g)
+ (ly:side-position-interface::calc-cross-staff g)))
+
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; note heads
(define-public (stem::calc-duration-log grob)
(ly:duration-log
(ly:event-property (event-cause grob) 'duration)))
+(define-public (stem::length grob)
+ (let* ((ss (ly:staff-symbol-staff-space grob))
+ (beg (ly:grob-property grob 'stem-begin-position))
+ (beam (ly:grob-object grob 'beam)))
+ (if (null? beam)
+ (abs (- (ly:stem::calc-stem-end-position grob) beg))
+ (begin
+ (ly:programming-error
+ "stem::length called but will not be used for beamed stem.")
+ 0.0))))
+
+(define-public (stem::pure-length grob beg end)
+ (let* ((ss (ly:staff-symbol-staff-space grob))
+ (beg (ly:grob-pure-property grob 'stem-begin-position 0 1000)))
+ (abs (- (ly:stem::pure-calc-stem-end-position grob 0 2147483646) beg))))
+
+(define (stem-stub::do-calculations grob)
+ (and (ly:grob-property (ly:grob-parent grob X) 'cross-staff)
+ (not (ly:grob-property (ly:grob-parent grob X) 'transparent))))
+
+(define-public (stem-stub::pure-height grob beg end)
+ (if (stem-stub::do-calculations grob)
+ '(0 . 0)
+ '(+inf.0 . -inf.0)))
+
+(define-public (stem-stub::width grob)
+ (if (stem-stub::do-calculations grob)
+ (grob::x-parent-width grob)
+ '(+inf.0 . -inf.0)))
+
+(define-public (stem-stub::extra-spacing-height grob)
+ (if (stem-stub::do-calculations grob)
+ (let* ((dad (ly:grob-parent grob X))
+ (refp (ly:grob-common-refpoint grob dad Y))
+ (stem_ph (ly:grob-pure-height dad refp 0 1000000))
+ (my_ph (ly:grob-pure-height grob refp 0 1000000))
+ ;; only account for distance if stem is on different staff than stub
+ (dist (if (grob::has-interface refp 'hara-kiri-group-spanner-interface)
+ 0
+ (- (car my_ph) (car stem_ph)))))
+ (if (interval-empty? (interval-intersection stem_ph my_ph)) #f (coord-translate stem_ph dist)))
+ #f))
+
+;; FIXME: NEED TO FIND A BETTER WAY TO HANDLE KIEVAN NOTATION
(define-public (note-head::calc-duration-log grob)
- (min 2
- (ly:duration-log
- (ly:event-property (event-cause grob) 'duration))))
+ (let ((style (ly:grob-property grob 'style)))
+ (if (and (symbol? style) (string-match "kievan*" (symbol->string style)))
+ (min 3
+ (ly:duration-log
+ (ly:event-property (event-cause grob) 'duration)))
+ (min 2
+ (ly:duration-log
+ (ly:event-property (event-cause grob) 'duration))))))
(define-public (dots::calc-dot-count grob)
(ly:duration-dot-count
(ly:event-property (event-cause grob) 'duration)))
-(define (note-head::calc-tablature-stem-attachment grob)
- (cons 0.0 1.35))
-
+(define-public (dots::calc-staff-position grob)
+ (let* ((head (ly:grob-parent grob Y))
+ (log (ly:grob-property head 'duration-log)))
+ (cond
+ ((or (not (grob::has-interface head 'rest-interface))
+ (not (integer? log))) 0)
+ ((= log 7) 4)
+ ((> log 4) 3)
+ ((= log 0) -1)
+ ((= log 1) 1)
+ ((= log -1) 1)
+ (else 0))))
+
+;; Kept separate from note-head::calc-glyph-name to allow use by
+;; markup commands \note and \note-by-number
+(define-public (select-head-glyph style log)
+ "Select a note head glyph string based on note head style @var{style}
+and duration-log @var{log}."
+ (case style
+ ;; "default" style is directly handled in note-head.cc as a
+ ;; special case (HW says, mainly for performance reasons).
+ ;; Therefore, style "default" does not appear in this case
+ ;; statement. -- jr
+ ((xcircle) "2xcircle")
+ ((harmonic) "0harmonic")
+ ((harmonic-black) "2harmonic")
+ ((harmonic-mixed) (if (<= log 1) "0harmonic"
+ "2harmonic"))
+ ((baroque)
+ ;; Oops, I actually would not call this "baroque", but, for
+ ;; backwards compatibility to 1.4, this is supposed to take
+ ;; brevis, longa and maxima from the neo-mensural font and all
+ ;; other note heads from the default font. -- jr
+ (if (< log 0)
+ (string-append (number->string log) "neomensural")
+ (number->string log)))
+ ((altdefault)
+ ;; Like default, but brevis is drawn with double vertical lines
+ (if (= log -1)
+ (string-append (number->string log) "double")
+ (number->string log)))
+ ((mensural)
+ (string-append (number->string log) (symbol->string style)))
+ ((petrucci)
+ (if (< log 0)
+ (string-append (number->string log) "mensural")
+ (string-append (number->string log) (symbol->string style))))
+ ((blackpetrucci)
+ (if (< log 0)
+ (string-append (number->string log) "blackmensural")
+ (string-append (number->string log) (symbol->string style))))
+ ((semipetrucci)
+ (if (< log 0)
+ (string-append (number->string log) "semimensural")
+ (string-append (number->string log) "petrucci")))
+ ((neomensural)
+ (string-append (number->string log) (symbol->string style)))
+ ((kievan)
+ (string-append (number->string log) "kievan"))
+ (else
+ (if (string-match "vaticana*|hufnagel*|medicaea*" (symbol->string style))
+ (symbol->string style)
+ (string-append (number->string (max 0 log))
+ (symbol->string style))))))
-;; silly, use alist?
(define-public (note-head::calc-glyph-name grob)
- (let*
- ((style (ly:grob-property grob 'style))
- (log (min 2 (ly:grob-property grob 'duration-log))))
-
- (case style
- ;; "default" style is directly handled in note-head.cc as a
- ;; special case (HW says, mainly for performance reasons).
- ;; Therefore, style "default" does not appear in this case
- ;; statement. -- jr
- ((xcircle) "2xcircle")
- ((harmonic) "0harmonic")
- ((baroque)
- ;; Oops, I actually would not call this "baroque", but, for
- ;; backwards compatibility to 1.4, this is supposed to take
- ;; brevis, longa and maxima from the neo-mensural font and all
- ;; other note heads from the default font. -- jr
- (if (< log 0)
- (string-append (number->string log) "neomensural")
- (number->string log)))
- ((mensural)
- (string-append (number->string log) (symbol->string style)))
- ((petrucci)
- (if (< log 0)
- (string-append (number->string log) "mensural")
- (string-append (number->string log) (symbol->string style))))
- ((neomensural)
- (string-append (number->string log) (symbol->string style)))
- (else
- (if (string-match "vaticana*|hufnagel*|medicaea*" (symbol->string style))
- (symbol->string style)
- (string-append (number->string (max 0 log))
- (symbol->string style)))))))
-
-;; TODO junk completely?
-(define (note-head-style->attachment-coordinates grob axis)
- "Return pair (X . Y), containing multipliers for the note head
-bounding box, where to attach the stem. e.g.: X==0 means horizontally
-centered, X==1 is at the right, X == -1 is at the left."
-
- '(1.0 . 0.0))
-
+ (let* ((style (ly:grob-property grob 'style))
+ (log (if (string-match "kievan*" (symbol->string style))
+ (min 3 (ly:grob-property grob 'duration-log))
+ (min 2 (ly:grob-property grob 'duration-log)))))
+ (select-head-glyph style log)))
+
+(define-public (note-head::brew-ez-stencil grob)
+ (let* ((log (ly:grob-property grob 'duration-log))
+ (pitch (ly:event-property (event-cause grob) 'pitch))
+ (pitch-index (ly:pitch-notename pitch))
+ (note-names (ly:grob-property grob 'note-names))
+ (pitch-string (if (and (vector? note-names)
+ (> (vector-length note-names) pitch-index))
+ (vector-ref note-names pitch-index)
+ (string
+ (integer->char
+ (+ (modulo (+ pitch-index 2) 7)
+ (char->integer #\A))))))
+ (staff-space (ly:staff-symbol-staff-space grob))
+ (line-thickness (ly:staff-symbol-line-thickness grob))
+ (stem (ly:grob-object grob 'stem))
+ (stem-thickness (* (if (ly:grob? stem)
+ (ly:grob-property stem 'thickness)
+ 1.3)
+ line-thickness))
+ (radius (/ (+ staff-space line-thickness) 2))
+ (letter (markup #:center-align #:vcenter pitch-string))
+ (filled-circle (markup #:draw-circle radius 0 #t)))
+
+ (ly:stencil-translate-axis
+ (grob-interpret-markup
+ grob
+ (if (>= log 2)
+ (make-combine-markup
+ filled-circle
+ (make-with-color-markup white letter))
+ (make-combine-markup
+ (make-combine-markup
+ filled-circle
+ (make-with-color-markup white (make-draw-circle-markup
+ (- radius stem-thickness) 0 #t)))
+ letter)))
+ radius X)))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;; bar numbers
-
-(define-public ((every-nth-bar-number-visible n) barnum) (= 0 (modulo barnum n)))
-
-(define-public ((modulo-bar-number-visible n m) barnum) (and (> barnum 1) (= m (modulo barnum n))))
-
-(define-public ((set-bar-number-visibility n) tr)
- (let* ((bn (ly:context-property tr 'currentBarNumber)))
- (ly:context-set-property! tr 'barNumberVisibility (modulo-bar-number-visible n (modulo bn n)))))
-
-(define-public (first-bar-number-invisible barnum) (> barnum 1))
+;; clipping
+
+(define-public (make-rhythmic-location bar-num num den)
+ (cons
+ bar-num (ly:make-moment num den)))
+
+(define-public (rhythmic-location? a)
+ (and (pair? a)
+ (integer? (car a))
+ (ly:moment? (cdr a))))
+
+(define-public (make-graceless-rhythmic-location loc)
+ (make-rhythmic-location
+ (car loc)
+ (ly:moment-main-numerator (rhythmic-location-measure-position loc))
+ (ly:moment-main-denominator (rhythmic-location-measure-position loc))))
+
+(define-public rhythmic-location-measure-position cdr)
+(define-public rhythmic-location-bar-number car)
+
+(define-public (rhythmic-location<? a b)
+ (cond
+ ((< (car a) (car b)) #t)
+ ((> (car a) (car b)) #f)
+ (else
+ (ly:moment<? (cdr a) (cdr b)))))
+
+(define-public (rhythmic-location<=? a b)
+ (not (rhythmic-location<? b a)))
+(define-public (rhythmic-location>=? a b)
+ (not (rhythmic-location<? a b)))
+(define-public (rhythmic-location>? a b)
+ (rhythmic-location<? b a))
+
+(define-public (rhythmic-location=? a b)
+ (and (rhythmic-location<=? a b)
+ (rhythmic-location<=? b a)))
+
+(define-public (rhythmic-location->file-string a)
+ (ly:format "~a.~a.~a"
+ (car a)
+ (ly:moment-main-numerator (cdr a))
+ (ly:moment-main-denominator (cdr a))))
+
+(define-public (rhythmic-location->string a)
+ (ly:format "bar ~a ~a"
+ (car a)
+ (ly:moment->string (cdr a))))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; break visibility
-(define-public begin-of-line-visible
- #(#f #f #t))
-(define-public end-of-line-visible
- #(#t #f #f))
-(define-public end-of-line-invisible
- #(#f #t #t))
-(define-public spanbar-begin-of-line-invisible
- #(#t #f #f))
-(define-public all-visible #(#t #t #t))
-(define-public all-invisible #(#f #f #f))
-(define-public begin-of-line-invisible
- #(#t #t #f))
-(define-public center-invisible #(#t #f #t))
+(define-public all-visible #(#t #t #t))
+(define-public begin-of-line-invisible #(#t #t #f))
+(define-public center-invisible #(#t #f #t))
+(define-public end-of-line-invisible #(#f #t #t))
+(define-public begin-of-line-visible #(#f #f #t))
+(define-public center-visible #(#f #t #f))
+(define-public end-of-line-visible #(#t #f #f))
+(define-public all-invisible #(#f #f #f))
+(define-public (inherit-x-parent-visibility grob)
+ (let ((parent (ly:grob-parent grob X)))
+ (ly:grob-property parent 'break-visibility all-invisible)))
+(define-public (inherit-y-parent-visibility grob)
+ (let ((parent (ly:grob-parent grob X)))
+ (ly:grob-property parent 'break-visibility)))
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;; Bar lines.
-;;
-;; How should a bar line behave at a break?
-;;
-;; Why prepend `default-' to every scm identifier?
-(define-public (bar-line::calc-glyph-name grob)
- (let* (
- (glyph (ly:grob-property grob 'glyph))
- (dir (ly:item-break-dir grob))
- (result (assoc glyph
- '((":|:" . (":|" . "|:"))
- ("||:" . ("||" . "|:"))
- ("dashed" . ("dashed" . '()))
- ("|" . ("|" . ()))
- ("||:" . ("||" . "|:"))
- ("|s" . (() . "|"))
- ("|:" . ("|" . "|:"))
- ("|." . ("|." . ()))
-
- ;; hmm... should we end with a bar line here?
- (".|" . ("|" . ".|"))
- (":|" . (":|" . ()))
- ("||" . ("||" . ()))
- (".|." . (".|." . ()))
- ("" . ("" . ""))
- (":" . (":" . ""))
- ("." . ("." . ()))
- ("empty" . (() . ()))
- ("brace" . (() . "brace"))
- ("bracket" . (() . "bracket")) )))
- (glyph-name (if (= dir CENTER)
- glyph
- (if (and result (string? (index-cell (cdr result) dir)))
- (index-cell (cdr result) dir)
- #f)))
- )
-
- (if (not glyph-name)
- (ly:grob-suicide! grob))
+(define-public spanbar-begin-of-line-invisible #(#t #f #f))
- glyph-name))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; neighbor-interface routines
(define-public (shift-right-at-line-begin g)
(equal? (ly:item-break-dir g) RIGHT))
(ly:grob-translate-axis! g 3.5 X)))
+(define-public (pure-from-neighbor-interface::extra-spacing-height-at-beginning-of-line grob)
+ (if (= 1 (ly:item-break-dir grob))
+ (pure-from-neighbor-interface::extra-spacing-height grob)
+ (cons -0.1 0.1)))
+
+(define-public (pure-from-neighbor-interface::extra-spacing-height grob)
+ (let* ((height (ly:grob-pure-height grob grob 0 10000000))
+ (from-neighbors (interval-union
+ height
+ (ly:axis-group-interface::pure-height
+ grob
+ 0
+ 10000000))))
+ (coord-operation - from-neighbors height)))
+
+(define-public (pure-from-neighbor-interface::account-for-span-bar grob)
+ (let* ((esh (pure-from-neighbor-interface::extra-spacing-height grob))
+ (hsb (ly:grob-property grob 'has-span-bar))
+ (ii (interval-intersection esh (cons -1.01 1.01))))
+ (if (pair? hsb)
+ (cons (car (if (and (car hsb)
+ (ly:grob-property grob 'allow-span-bar))
+ esh ii))
+ (cdr (if (cdr hsb) esh ii)))
+ ii)))
+
+(define-public (pure-from-neighbor-interface::extra-spacing-height-including-staff grob)
+ (let ((esh (pure-from-neighbor-interface::extra-spacing-height grob))
+ (to-staff (coord-operation -
+ (interval-widen
+ '(0 . 0)
+ (ly:staff-symbol-staff-radius grob))
+ (ly:grob::stencil-height grob))))
+ (interval-union esh to-staff)))
+
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Tuplets
+(define-public (tuplet-number::calc-direction grob)
+ (ly:tuplet-bracket::calc-direction (ly:grob-object grob 'bracket)))
+
(define-public (tuplet-number::calc-denominator-text grob)
(number->string (ly:event-property (event-cause grob) 'denominator)))
(define-public (tuplet-number::calc-fraction-text grob)
- (let*
- ((ev (event-cause grob)))
+ (let ((ev (event-cause grob)))
- (format "~a:~a"
+ (format #f "~a:~a"
(ly:event-property ev 'denominator)
(ly:event-property ev 'numerator))))
+;; a formatter function, which is simply a wrapper around an existing
+;; tuplet formatter function. It takes the value returned by the given
+;; function and appends a note of given length.
+(define-public ((tuplet-number::append-note-wrapper function note) grob)
+ (let ((txt (if function (function grob) #f)))
+
+ (if txt
+ (markup txt #:fontsize -5 #:note note UP)
+ (markup #:fontsize -5 #:note note UP))))
+
+;; Print a tuplet denominator with a different number than the one derived from
+;; the actual tuplet fraction
+(define-public ((tuplet-number::non-default-tuplet-denominator-text denominator)
+ grob)
+ (number->string (if denominator
+ denominator
+ (ly:event-property (event-cause grob) 'denominator))))
+
+;; Print a tuplet fraction with different numbers than the ones derived from
+;; the actual tuplet fraction
+(define-public ((tuplet-number::non-default-tuplet-fraction-text
+ denominator numerator) grob)
+ (let* ((ev (event-cause grob))
+ (den (if denominator denominator (ly:event-property ev 'denominator)))
+ (num (if numerator numerator (ly:event-property ev 'numerator))))
+
+ (format #f "~a:~a" den num)))
+
+;; Print a tuplet fraction with note durations appended to the numerator and the
+;; denominator
+(define-public ((tuplet-number::fraction-with-notes
+ denominatornote numeratornote) grob)
+ (let* ((ev (event-cause grob))
+ (denominator (ly:event-property ev 'denominator))
+ (numerator (ly:event-property ev 'numerator)))
+
+ ((tuplet-number::non-default-fraction-with-notes
+ denominator denominatornote numerator numeratornote) grob)))
+
+;; Print a tuplet fraction with note durations appended to the numerator and the
+;; denominator
+(define-public ((tuplet-number::non-default-fraction-with-notes
+ denominator denominatornote numerator numeratornote) grob)
+ (let* ((ev (event-cause grob))
+ (den (if denominator denominator (ly:event-property ev 'denominator)))
+ (num (if numerator numerator (ly:event-property ev 'numerator))))
+
+ (make-concat-markup (list
+ (make-simple-markup (format #f "~a" den))
+ (markup #:fontsize -5 #:note denominatornote UP)
+ (make-simple-markup " : ")
+ (make-simple-markup (format #f "~a" num))
+ (markup #:fontsize -5 #:note numeratornote UP)))))
+
+
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Color
-(define-public color? list?)
+(define-public (color? x)
+ (and (list? x)
+ (= 3 (length x))
+ (apply eq? #t (map number? x))
+ (apply eq? #t (map (lambda (y) (<= 0 y 1)) x))))
+
+(define-public (rgb-color r g b) (list r g b))
; predefined colors
(define-public black '(0.0 0.0 0.0))
(define-public darkmagenta '(0.5 0.0 0.5))
(define-public darkyellow '(0.5 0.5 0.0))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; key signature
+
+(define-public (key-signature-interface::alteration-position step alter
+ c0-position)
+ ;; TODO: memoize - this is mostly constant.
+
+ ;; fes, ges, as and bes typeset in lower octave
+ (define FLAT_TOP_PITCH 2)
+
+ ;; ais and bis typeset in lower octave
+ (define SHARP_TOP_PITCH 4)
+
+ (if (pair? step)
+ (+ (cdr step) (* (car step) 7) c0-position)
+ (let* ((from-bottom-pos (modulo (+ 4 49 c0-position) 7))
+ (p step)
+ (c0 (- from-bottom-pos 4)))
+
+ (if
+ (or (and (< alter 0)
+ (or (> p FLAT_TOP_PITCH) (> (+ p c0) 4)) (> (+ p c0) 1))
+ (and (> alter 0)
+ (or (> p SHARP_TOP_PITCH) (> (+ p c0) 5)) (> (+ p c0) 2)))
+
+ ;; Typeset below c_position
+ (set! p (- p 7)))
+
+ ;; Provide for the four cases in which there's a glitch
+ ;; it's a hack, but probably not worth
+ ;; the effort of finding a nicer solution.
+ ;; --dl.
+ (cond
+ ((and (= c0 2) (= p 3) (> alter 0))
+ (set! p (- p 7)))
+ ((and (= c0 -3) (= p -1) (> alter 0))
+ (set! p (+ p 7)))
+ ((and (= c0 -4) (= p -1) (< alter 0))
+ (set! p (+ p 7)))
+ ((and (= c0 -2) (= p -3) (< alter 0))
+ (set! p (+ p 7))))
+
+ (+ c0 p))))
+
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; annotations
+
+(define-public (numbered-footnotes int)
+ (markup #:tiny (number->string (+ 1 int))))
+
+(define-public (symbol-footnotes int)
+ (define (helper symbols out idx n)
+ (if (< n 1)
+ out
+ (helper symbols
+ (string-append out (list-ref symbols idx))
+ idx
+ (- n 1))))
+ (markup #:tiny (helper '("*" "†" "‡" "§" "¶")
+ ""
+ (remainder int 5)
+ (+ 1 (quotient int 5)))))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; accidentals
+
+(define-public (accidental-interface::calc-alteration grob)
+ (ly:pitch-alteration (ly:event-property (event-cause grob) 'pitch)))
+
+(define-public cancellation-glyph-name-alist
+ '((0 . "accidentals.natural")))
+
+(define-public standard-alteration-glyph-name-alist
+ '(
+ ;; ordered for optimal performance.
+ (0 . "accidentals.natural")
+ (-1/2 . "accidentals.flat")
+ (1/2 . "accidentals.sharp")
+
+ (1 . "accidentals.doublesharp")
+ (-1 . "accidentals.flatflat")
+
+ (3/4 . "accidentals.sharp.slashslash.stemstemstem")
+ (1/4 . "accidentals.sharp.slashslash.stem")
+ (-1/4 . "accidentals.mirroredflat")
+ (-3/4 . "accidentals.mirroredflat.flat")))
+
+;; FIXME: standard vs default, alteration-FOO vs FOO-alteration
+(define-public alteration-default-glyph-name-alist
+ standard-alteration-glyph-name-alist)
+
+(define-public makam-alteration-glyph-name-alist
+ '((1 . "accidentals.doublesharp")
+ (8/9 . "accidentals.sharp.slashslashslash.stemstem")
+ (5/9 . "accidentals.sharp.slashslashslash.stem")
+ (4/9 . "accidentals.sharp")
+ (1/9 . "accidentals.sharp.slashslash.stem")
+ (0 . "accidentals.natural")
+ (-1/9 . "accidentals.mirroredflat")
+ (-4/9 . "accidentals.flat.slash")
+ (-5/9 . "accidentals.flat")
+ (-8/9 . "accidentals.flat.slashslash")
+ (-1 . "accidentals.flatflat")))
+
+(define-public alteration-hufnagel-glyph-name-alist
+ '((-1/2 . "accidentals.hufnagelM1")
+ (0 . "accidentals.vaticana0")
+ (1/2 . "accidentals.mensural1")))
+
+(define-public alteration-medicaea-glyph-name-alist
+ '((-1/2 . "accidentals.medicaeaM1")
+ (0 . "accidentals.vaticana0")
+ (1/2 . "accidentals.mensural1")))
+
+(define-public alteration-vaticana-glyph-name-alist
+ '((-1/2 . "accidentals.vaticanaM1")
+ (0 . "accidentals.vaticana0")
+ (1/2 . "accidentals.mensural1")))
+
+(define-public alteration-mensural-glyph-name-alist
+ '((-1/2 . "accidentals.mensuralM1")
+ (0 . "accidentals.vaticana0")
+ (1/2 . "accidentals.mensural1")))
+
+(define-public alteration-kievan-glyph-name-alist
+ '((-1/2 . "accidentals.kievanM1")
+ (1/2 . "accidentals.kievan1")))
+
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; * Pitch Trill Heads
;; * Parentheses
+(define-public (parentheses-item::calc-parenthesis-stencils grob)
+ (let* ((font (ly:grob-default-font grob))
+ (lp (ly:font-get-glyph font "accidentals.leftparen"))
+ (rp (ly:font-get-glyph font "accidentals.rightparen")))
+
+ (list lp rp)))
+
+(define-public (parentheses-item::calc-angled-bracket-stencils grob)
+ (let* ((parent (ly:grob-parent grob Y))
+ (y-extent (ly:grob-extent parent parent Y))
+ (half-thickness 0.05) ; should it be a property?
+ (width 0.5) ; should it be a property?
+ (angularity 1.5) ; makes angle brackets
+ (white-padding 0.1) ; should it be a property?
+ (lp (ly:stencil-aligned-to
+ (ly:stencil-aligned-to
+ (make-parenthesis-stencil y-extent
+ half-thickness
+ (- width)
+ angularity)
+ Y CENTER)
+ X RIGHT))
+ (lp-x-extent
+ (interval-widen (ly:stencil-extent lp X) white-padding))
+ (rp (ly:stencil-aligned-to
+ (ly:stencil-aligned-to
+ (make-parenthesis-stencil y-extent
+ half-thickness
+ width
+ angularity)
+ Y CENTER)
+ X LEFT))
+ (rp-x-extent
+ (interval-widen (ly:stencil-extent rp X) white-padding)))
+ (set! lp (ly:make-stencil (ly:stencil-expr lp)
+ lp-x-extent
+ (ly:stencil-extent lp Y)))
+ (set! rp (ly:make-stencil (ly:stencil-expr rp)
+ rp-x-extent
+ (ly:stencil-extent rp Y)))
+ (list (stencil-whiteout lp)
+ (stencil-whiteout rp))))
+
(define (parenthesize-elements grob . rest)
- (let*
- ((refp (if (null? rest)
- grob
- (car rest)))
- (elts (ly:grob-object grob 'elements))
- (x-ext (ly:relative-group-extent elts refp X))
-
- (font (ly:grob-default-font grob))
- (lp (ly:font-get-glyph font "accidentals.leftparen"))
- (rp (ly:font-get-glyph font "accidentals.rightparen"))
- (padding (ly:grob-property grob 'padding 0.1)))
-
+ (let* ((refp (if (null? rest)
+ grob
+ (car rest)))
+ (elts (ly:grob-object grob 'elements))
+ (x-ext (ly:relative-group-extent elts refp X))
+ (stencils (ly:grob-property grob 'stencils))
+ (lp (car stencils))
+ (rp (cadr stencils))
+ (padding (ly:grob-property grob 'padding 0.1)))
+
(ly:stencil-add
(ly:stencil-translate-axis lp (- (car x-ext) padding) X)
- (ly:stencil-translate-axis rp (+ (cdr x-ext) padding) X))
- ))
+ (ly:stencil-translate-axis rp (+ (cdr x-ext) padding) X))))
-(define (parentheses-item::print me)
- (let*
- ((elts (ly:grob-object me 'elements))
- (y-ref (ly:grob-common-refpoint-of-array me elts Y))
- (x-ref (ly:grob-common-refpoint-of-array me elts X))
- (stencil (parenthesize-elements me x-ref))
- (elt-y-ext (ly:relative-group-extent elts y-ref Y))
- (y-center (interval-center elt-y-ext)))
+(define-public (parentheses-item::print me)
+ (let* ((elts (ly:grob-object me 'elements))
+ (y-ref (ly:grob-common-refpoint-of-array me elts Y))
+ (x-ref (ly:grob-common-refpoint-of-array me elts X))
+ (stencil (parenthesize-elements me x-ref))
+ (elt-y-ext (ly:relative-group-extent elts y-ref Y))
+ (y-center (interval-center elt-y-ext)))
(ly:stencil-translate
stencil
(cons
- (-
- (ly:grob-relative-coordinate me x-ref X))
- (-
- y-center
- (ly:grob-relative-coordinate me y-ref Y))))
- ))
+ (- (ly:grob-relative-coordinate me x-ref X))
+ (- y-center (ly:grob-relative-coordinate me y-ref Y))))))
+
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;;
+;;
(define-public (chain-grob-member-functions grob value . funcs)
(for-each
value)
+
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;; falls
-
-(define-public (fall::print spanner)
- (let*
- ((delta-y (* 0.5 (ly:grob-property spanner 'delta-position)))
- (left-span (ly:spanner-bound spanner LEFT))
- (right-span (ly:spanner-bound spanner RIGHT))
- (thickness (* (ly:grob-property spanner 'thickness)
- (ly:output-def-lookup (ly:grob-layout spanner)
- 'line-thickness)))
- (padding (ly:grob-property spanner 'padding 0.5))
- (common (ly:grob-common-refpoint right-span
- (ly:grob-common-refpoint spanner
- left-span X)
- X))
- (left-x (+ padding
- (interval-end (ly:grob-robust-relative-extent
- left-span common X))))
- (right-x (- (interval-start
- (ly:grob-robust-relative-extent right-span common X))
- padding))
- (self-x (ly:grob-relative-coordinate spanner common X))
- (dx (- right-x left-x))
- (exp (list 'path thickness
- `(quote
- (rmoveto
- ,(- left-x self-x) 0
-
- rcurveto
- ,(/ dx 3)
- 0
- ,dx ,(* 0.66 delta-y)
- ,dx ,delta-y
- ))))
- )
+;; falls/doits
+
+(define-public (bend::print spanner)
+ (define (close a b)
+ (< (abs (- a b)) 0.01))
+
+ (let* ((delta-y (* 0.5 (ly:grob-property spanner 'delta-position)))
+ (left-span (ly:spanner-bound spanner LEFT))
+ (dots (if (and (grob::has-interface left-span 'note-head-interface)
+ (ly:grob? (ly:grob-object left-span 'dot)))
+ (ly:grob-object left-span 'dot) #f))
+
+ (right-span (ly:spanner-bound spanner RIGHT))
+ (thickness (* (ly:grob-property spanner 'thickness)
+ (ly:output-def-lookup (ly:grob-layout spanner)
+ 'line-thickness)))
+ (padding (ly:grob-property spanner 'padding 0.5))
+ (common (ly:grob-common-refpoint right-span
+ (ly:grob-common-refpoint spanner
+ left-span X)
+ X))
+ (common-y (ly:grob-common-refpoint spanner left-span Y))
+ (minimum-length (ly:grob-property spanner 'minimum-length 0.5))
+
+ (left-x (+ padding
+ (max
+ (interval-end (ly:grob-robust-relative-extent
+ left-span common X))
+ (if
+ (and dots
+ (close
+ (ly:grob-relative-coordinate dots common-y Y)
+ (ly:grob-relative-coordinate spanner common-y Y)))
+ (interval-end
+ (ly:grob-robust-relative-extent dots common X))
+ ;; TODO: use real infinity constant.
+ -10000))))
+ (right-x (max (- (interval-start
+ (ly:grob-robust-relative-extent right-span common X))
+ padding)
+ (+ left-x minimum-length)))
+ (self-x (ly:grob-relative-coordinate spanner common X))
+ (dx (- right-x left-x))
+ (exp (list 'path thickness
+ `(quote
+ (rmoveto
+ ,(- left-x self-x) 0
+
+ rcurveto
+ ,(/ dx 3)
+ 0
+ ,dx ,(* 0.66 delta-y)
+ ,dx ,delta-y)))))
(ly:make-stencil
exp
- (cons 0 dx)
+ (cons (- left-x self-x) (- right-x self-x))
(cons (min 0 delta-y)
(max 0 delta-y)))))
+
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; grace spacing
-
(define-public (grace-spacing::calc-shortest-duration grob)
- (let*
- ((cols (ly:grob-object grob 'columns))
- (get-difference
- (lambda (idx)
- (ly:moment-sub (ly:grob-property
- (ly:grob-array-ref cols (1+ idx)) 'when)
- (ly:grob-property
- (ly:grob-array-ref cols idx) 'when))))
-
- (moment-min (lambda (x y)
- (cond
- ((and x y)
- (if (ly:moment<? x y)
- x
- y))
- (x x)
- (y y)))))
-
+ (let* ((cols (ly:grob-object grob 'columns))
+ (get-difference
+ (lambda (idx)
+ (ly:moment-sub (ly:grob-property
+ (ly:grob-array-ref cols (1+ idx)) 'when)
+ (ly:grob-property
+ (ly:grob-array-ref cols idx) 'when))))
+
+ (moment-min (lambda (x y)
+ (cond
+ ((and x y)
+ (if (ly:moment<? x y)
+ x
+ y))
+ (x x)
+ (y y)))))
+
(fold moment-min #f (map get-difference
(iota (1- (ly:grob-array-length cols)))))))
-
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; fingering
(define-public (fingering::calc-text grob)
- (let*
- ((event (event-cause grob))
- (digit (ly:event-property event 'digit)))
-
- (if (> digit 5)
- (ly:input-message (ly:event-property event 'origin)
- "Music for the martians"))
+ (let* ((event (event-cause grob))
+ (digit (ly:event-property event 'digit)))
- (number->string digit 10)
- ))
+ (number->string digit 10)))
(define-public (string-number::calc-text grob)
- (let*
- ((digit (ly:event-property (event-cause grob) 'string-number)))
-
- (number->string digit 10)
- ))
+ (let ((digit (ly:event-property (event-cause grob) 'string-number)))
+ (number->string digit 10)))
(define-public (stroke-finger::calc-text grob)
- (let*
- ((digit (ly:event-property (event-cause grob) 'digit))
- (text (ly:event-property (event-cause grob) 'text)))
+ (let* ((digit (ly:event-property (event-cause grob) 'digit))
+ (text (ly:event-property (event-cause grob) 'text)))
(if (string? text)
text
- (vector-ref (ly:grob-property grob 'digit-names) (1- (max (min 5 digit) 1))))))
+ (vector-ref (ly:grob-property grob 'digit-names)
+ (1- (max (min 5 digit) 1))))))
+
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; dynamics
+
(define-public (hairpin::calc-grow-direction grob)
- (if (eq? (ly:event-property (event-cause grob) 'class) 'decrescendo-event)
+ (if (ly:in-event-class? (event-cause grob) 'decrescendo-event)
START
- STOP
- ))
+ STOP))
+
+(define-public (dynamic-text-spanner::before-line-breaking grob)
+ "Monitor left bound of @code{DynamicTextSpanner} for absolute dynamics.
+If found, ensure @code{DynamicText} does not collide with spanner text by
+changing @code{'attach-dir} and @code{'padding}. Reads the
+@code{'right-padding} property of @code{DynamicText} to fine tune space
+between the two text elements."
+ (let ((left-bound (ly:spanner-bound grob LEFT)))
+ (if (grob::has-interface left-bound 'dynamic-text-interface)
+ (let* ((details (ly:grob-property grob 'bound-details))
+ (left-details (ly:assoc-get 'left details))
+ (my-padding (ly:assoc-get 'padding left-details))
+ (script-padding (ly:grob-property left-bound 'right-padding 0)))
+
+ (and (number? my-padding)
+ (ly:grob-set-nested-property! grob
+ '(bound-details left attach-dir)
+ RIGHT)
+ (ly:grob-set-nested-property! grob
+ '(bound-details left padding)
+ (+ my-padding script-padding)))))))
+
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; lyrics
(define-public (lyric-text::print grob)
"Allow interpretation of tildes as lyric tieing marks."
-
- (let*
- ((text (ly:grob-property grob 'text))
- (layout (ly:grob-layout grob))
- (defs (ly:output-def-lookup layout 'text-font-defaults))
- (props (ly:grob-alist-chain grob defs)))
-
- (ly:text-interface::interpret-markup layout
- props
- (if (string? text)
- (make-tied-lyric-markup text)
- text))))
+
+ (let ((text (ly:grob-property grob 'text)))
+
+ (grob-interpret-markup grob (if (string? text)
+ (make-tied-lyric-markup text)
+ text))))
(define-public ((grob::calc-property-by-copy prop) grob)
(ly:event-property (event-cause grob) prop))
+
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; fret boards
-(define (string-frets->description string-frets string-count)
- (let*
- ((desc (list->vector
- (map (lambda (x) (list 'mute (1+ x)))
- (iota string-count)))))
-
- (for-each (lambda (sf)
- (let*
- ((string (car sf))
- (fret (cadr sf))
- (finger (caddr sf)))
-
-
- (vector-set! desc (1- string)
- (if (= 0 fret)
- (list 'open string)
- (if finger
- (list 'place-fret string fret finger)
- (list 'place-fret string fret))
-
-
- ))
- ))
- string-frets)
-
- (vector->list desc)))
-
(define-public (fret-board::calc-stencil grob)
- (let* ((string-frets (ly:grob-property grob 'string-fret-finger-combinations))
- (string-count (ly:grob-property grob 'string-count))
+ (grob-interpret-markup
+ grob
+ (make-fret-diagram-verbose-markup
+ (ly:grob-property grob 'dot-placement-list))))
+
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; scripts
+
+(define-public (script-interface::calc-x-offset grob)
+ (ly:grob-property grob 'positioning-done)
+ (let* ((shift (ly:grob-property grob 'toward-stem-shift 0.0))
+ (note-head-location
+ (ly:self-alignment-interface::centered-on-x-parent grob))
+ (note-head-grob (ly:grob-parent grob X))
+ (stem-grob (ly:grob-object note-head-grob 'stem)))
+
+ (+ note-head-location
+ ;; If the property 'toward-stem-shift is defined and the script
+ ;; has the same direction as the stem, move the script accordingly.
+ ;; Since scripts can also be over skips, we need to check whether
+ ;; the grob has a stem at all.
+ (if (ly:grob? stem-grob)
+ (let ((dir1 (ly:grob-property grob 'direction))
+ (dir2 (ly:grob-property stem-grob 'direction)))
+ (if (equal? dir1 dir2)
+ (let* ((common-refp (ly:grob-common-refpoint grob stem-grob X))
+ (stem-location
+ (ly:grob-relative-coordinate stem-grob common-refp X)))
+ (* shift (- stem-location note-head-location)))
+ 0.0))
+ 0.0))))
+
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; instrument names
+
+(define-public (system-start-text::print grob)
+ (let* ((left-bound (ly:spanner-bound grob LEFT))
+ (left-mom (ly:grob-property left-bound 'when))
+ (name (if (moment<=? left-mom ZERO-MOMENT)
+ (ly:grob-property grob 'long-text)
+ (ly:grob-property grob 'text))))
+
+ (if (and (markup? name)
+ (!= (ly:item-break-dir left-bound) CENTER))
+
+ (grob-interpret-markup grob name)
+ (ly:grob-suicide! grob))))
+
+(define-public (system-start-text::calc-x-offset grob)
+ (let* ((left-bound (ly:spanner-bound grob LEFT))
+ (left-mom (ly:grob-property left-bound 'when))
(layout (ly:grob-layout grob))
- (defs (ly:output-def-lookup layout 'text-font-defaults))
- (props (ly:grob-alist-chain grob defs)))
+ (indent (ly:output-def-lookup layout
+ (if (moment<=? left-mom ZERO-MOMENT)
+ 'indent
+ 'short-indent)
+ 0.0))
+ (system (ly:grob-system grob))
+ (my-extent (ly:grob-extent grob system X))
+ (elements (ly:grob-object system 'elements))
+ (common (ly:grob-common-refpoint-of-array system elements X))
+ (total-ext empty-interval)
+ (align-x (ly:grob-property grob 'self-alignment-X 0))
+ (padding (min 0 (- (interval-length my-extent) indent)))
+ (right-padding (- padding
+ (/ (* padding (1+ align-x)) 2))))
+
+ ;; compensate for the variation in delimiter extents by
+ ;; calculating an X-offset correction based on united extents
+ ;; of all delimiters in this system
+ (let unite-delims ((l (ly:grob-array-length elements)))
+ (if (> l 0)
+ (let ((elt (ly:grob-array-ref elements (1- l))))
+
+ (if (grob::has-interface elt 'system-start-delimiter-interface)
+ (let ((dims (ly:grob-extent elt common X)))
+ (if (interval-sane? dims)
+ (set! total-ext (interval-union total-ext dims)))))
+ (unite-delims (1- l)))))
+
+ (+
+ (ly:side-position-interface::x-aligned-side grob)
+ right-padding
+ (- (interval-length total-ext)))))
+
+(define-public (system-start-text::calc-y-offset grob)
+
+ (define (live-elements-list me)
+ (let ((elements (ly:grob-object me 'elements)))
+
+ (filter! grob::is-live?
+ (ly:grob-array->list elements))))
+
+ (let* ((left-bound (ly:spanner-bound grob LEFT))
+ (live-elts (live-elements-list grob))
+ (system (ly:grob-system grob))
+ (extent empty-interval))
+
+ (if (and (pair? live-elts)
+ (interval-sane? (ly:grob-extent grob system Y)))
+ (let get-extent ((lst live-elts))
+ (if (pair? lst)
+ (let ((axis-group (car lst)))
+
+ (if (and (ly:spanner? axis-group)
+ (equal? (ly:spanner-bound axis-group LEFT)
+ left-bound))
+ (set! extent (add-point extent
+ (ly:grob-relative-coordinate
+ axis-group system Y))))
+ (get-extent (cdr lst)))))
+ ;; no live axis group(s) for this instrument name -> remove from system
+ (ly:grob-suicide! grob))
+
+ (+
+ (ly:self-alignment-interface::y-aligned-on-self grob)
+ (interval-center extent))))
+
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; ambitus
+
+(define-public (ambitus::print grob)
+ (let ((heads (ly:grob-object grob 'note-heads)))
+
+ (if (and (ly:grob-array? heads)
+ (= (ly:grob-array-length heads) 2))
+ (let* ((common (ly:grob-common-refpoint-of-array grob heads Y))
+ (head-down (ly:grob-array-ref heads 0))
+ (head-up (ly:grob-array-ref heads 1))
+ (gap (ly:grob-property grob 'gap 0.35))
+ (point-min (+ (interval-end (ly:grob-extent head-down common Y))
+ gap))
+ (point-max (- (interval-start (ly:grob-extent head-up common Y))
+ gap)))
+
+ (if (< point-min point-max)
+ (let* ((layout (ly:grob-layout grob))
+ (line-thick (ly:output-def-lookup layout 'line-thickness))
+ (blot (ly:output-def-lookup layout 'blot-diameter))
+ (grob-thick (ly:grob-property grob 'thickness 2))
+ (width (* line-thick grob-thick))
+ (x-ext (symmetric-interval (/ width 2)))
+ (y-ext (cons point-min point-max))
+ (line (ly:round-filled-box x-ext y-ext blot))
+ (y-coord (ly:grob-relative-coordinate grob common Y)))
+
+ (ly:stencil-translate-axis line (- y-coord) Y))
+ empty-stencil))
+ (begin
+ (ly:grob-suicide! grob)
+ (list)))))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; laissez-vibrer tie
+;;
+;; needed so we can make laissez-vibrer a pure print
+;;
+(define-public (laissez-vibrer::print grob)
+ (ly:tie::print grob))
- (make-fret-diagram layout props
- (string-frets->description string-frets 6))))
projects / lilypond.git / blobdiff