X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=scm%2Foutput-lib.scm;h=89d20b95509febf0f89ce443f0bd26282f9d5c29;hb=e8a9ef10aa3bfc2db7689aa58631aabb4095cd16;hp=23ff2640bb4f3efce22411efd1b6fbb907999a15;hpb=bd751630011a6fbfcf069ec1fc41a8eaed8a6b87;p=lilypond.git

diff --git a/scm/output-lib.scm b/scm/output-lib.scm
index 23ff2640bb..89d20b9550 100644
--- a/scm/output-lib.scm
+++ b/scm/output-lib.scm
@@ -620,8 +620,8 @@ and duration-log @var{log}."
 (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))))
+       (every number? x)
+       (every (lambda (y) (<= 0 y 1)) x)))
 
 (define-public (rgb-color r g b) (list r g b))
 
@@ -673,6 +673,20 @@ and duration-log @var{log}."
                                     (prepend (+ x 7) (cons x l))))
           (prepend first-position '())))))
 
+(define-public (key-signature-interface::alteration-position
+                step alter c0-position)
+;; Deprecated.  Not a documented interface, and no longer used in LilyPond,
+;; but needed for a popular file, LilyJAZZ.ily for version 2.16
+  (if (pair? step)
+    (+ (cdr step) (* (car step) 7) c0-position)
+    (let* ((c-pos (modulo c0-position 7))
+           (hi (list-ref
+                 (if (< alter 0)
+                   '(2 3 4 2 1 2 1) ; position of highest flat
+                   '(4 5 4 2 3 2 3)); position of highest sharp
+                 c-pos)))
+      (- hi (modulo (- hi (+ c-pos step)) 7)))))
+
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ;; annotations
 
@@ -854,6 +868,11 @@ and duration-log @var{log}."
    the previous calculated offset value."
   prev-offset)
 
+(define-public (scale-by-font-size x)
+  (ly:make-unpure-pure-container
+    (lambda (grob)
+      (* x (magstep (ly:grob-property grob 'font-size 0))))))
+
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ;;
 
@@ -893,8 +912,8 @@ and duration-log @var{log}."
 
          (left-x (+ padding
                     (max
-                     (interval-end (ly:grob-robust-relative-extent
-                                    left-span common X))
+                     (interval-end (ly:generic-bound-extent
+                                    left-span common))
                      (if
                       (and dots
                            (close
@@ -904,7 +923,7 @@ and duration-log @var{log}."
                        (ly:grob-robust-relative-extent dots common X))
                       (- INFINITY-INT)))))
          (right-x (max (- (interval-start
-                           (ly:grob-robust-relative-extent right-span common X))
+                           (ly:generic-bound-extent right-span common))
                           padding)
                        (+ left-x minimum-length)))
          (self-x (ly:grob-relative-coordinate spanner common X))
@@ -1241,6 +1260,31 @@ parent or the parent has no setting."
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ;; ambitus
 
+;; Calculate the gaps between ambitus heads and ends of ambitus line.
+;; Start by determining desired length of the ambitus line (based on
+;; length-fraction property), calc gap from that and make sure that
+;; it doesn't exceed maximum allowed value.
+
+(define-public (ambitus-line::calc-gap 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))
+              (fraction (ly:grob-property grob 'length-fraction 0.7))
+              (max-gap (ly:grob-property grob 'maximum-gap 0.45))
+              ;; distance between noteheads:
+              (distance (- (interval-start (ly:grob-extent head-up common Y))
+                          (interval-end (ly:grob-extent head-down common Y))))
+              (gap (* 0.5 distance (- 1 fraction))))
+
+         (min gap max-gap))
+      0)))
+
+;; Print a line connecting ambitus heads:
+
 (define-public (ambitus::print grob)
   (let ((heads (ly:grob-object grob 'note-heads)))
 
@@ -1249,13 +1293,15 @@ parent or the parent has no setting."
         (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))
+               ;; The value used when 'gap' property cannot be read is small
+               ;; to make sure that ambitus of a fifth will have a visible line.
+               (gap (ly:grob-property grob 'gap 0.25))
                (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)
+          (if (< (+ point-min 0.1) point-max) ; don't print lines shorter than 0.1ss
               (let* ((layout (ly:grob-layout grob))
                      (line-thick (ly:output-def-lookup layout 'line-thickness))
                      (blot (ly:output-def-lookup layout 'blot-diameter))