Imported sources

[lilypond.git] / scm / slur.scm

diff --git a/scm/slur.scm b/scm/slur.scm
index 41150ef8d617e83292973c6a6194cf5506463d4c..bc13a4e6edb5b70dc2bd66a1dadefdd3c7791e29 100644 (file)
--- a/scm/slur.scm
+++ b/scm/slur.scm
@@ -1,12 +1,19 @@
+;;;;
+;;;; slur.scm -- Slur scheme stuff
+;;;;
+;;;; source file of the GNU LilyPond music typesetter
+;;;; 
+;;;; (c)  2000--2004 Jan Nieuwenhuizen <janneke@gnu.org>
+;;;;
 
 (define (attached-to-stem slur dir)
-  (let* ((note-columns (ly-get-elt-property slur 'note-columns))
+  (let* ((note-columns (ly:get-grob-property slur 'note-columns))
         (col (if (= dir 1) (car note-columns) (car (reverse note-columns))))
-        (stem (ly-get-elt-property col 'stem)))
+        (stem (ly:get-grob-property col 'stem)))
     (and
-     (eq? col (ly-get-spanner-bound slur dir))
+     (eq? col (ly:get-spanner-bound slur dir))
      stem
-     (ly-get-elt-property stem 'heads))))
+     (ly:get-grob-property stem 'heads))))
 
 
 ;; Slur-extremity-rules is a list of rules.  Each rule is a pair 
@@ -30,7 +37,7 @@
 
    ;; urg: don't crash on a slur without note-columns
    (cons (lambda (slur dir)
-          (< (length (ly-get-elt-property slur 'note-columns)) 1)) 'head)
+          (< (length (ly:get-grob-property slur 'note-columns)) 1)) 'head)
 
    ;; (cons (lambda (slur dir) (begin (display "before loose-end") (newline))#f) #f)
    (cons (lambda (slur dir) (not (attached-to-stem slur dir)))  'loose-end)
@@ -39,12 +46,13 @@
 
    (cons (lambda (slur dir)
           ;; urg, code dup
-          (let* ((note-columns (ly-get-elt-property slur 'note-columns))
-                 (col (if (= dir 1) (car note-columns) (car (reverse note-columns))))
-                 (stem (ly-get-elt-property col 'stem)))
+          (let* ((note-columns (ly:get-grob-property slur 'note-columns))
+                 (col (car (if (= dir 1) note-columns (reverse note-columns))))
+                 (stem (ly:get-grob-property col 'stem)))
+            
             (and stem
-                 (not (= (ly-get-elt-property slur 'direction) 
-                         (ly-get-elt-property stem 'direction))))))  'head)
+                 (not (equal? (ly:get-grob-property slur 'direction) 
+                              (ly:get-grob-property stem 'direction))))))  'head)
 
    ;; (cons (lambda (slur dir) (begin (display "before stem") (newline))#f) #f)
 
@@ -53,20 +61,21 @@
           (and (attached-to-stem slur dir)
                ;; and got beam
                ;; urg, code dup
-               (let* ((note-columns (ly-get-elt-property slur 'note-columns))
+               (let* ((note-columns (ly:get-grob-property slur 'note-columns))
                       (col (if (= dir 1) (car note-columns) (car (reverse note-columns))))
-                      (stem (ly-get-elt-property col 'stem)))
+                      (stem (ly:get-grob-property col 'stem)))
                  (and stem
-                      (ly-get-elt-property stem 'beam)
+                      (ly:get-grob-property stem 'beam)
                       ;; and beam on same side as slur
-                      (let ((beaming (ly-get-elt-property stem 'beaming)))
+                      (let ((beaming (ly:get-grob-property stem 'beaming)))
+                        ;; (display "beaming (") (display dir) (display "): ") (write beaming) (newline)
                         (if (pair? beaming)
-                            (<= 1
-                                (if (= dir -1) (car beaming) (cdr beaming)))
+                            (>= (length (if (= dir -1) (cdr beaming) (car beaming)))
+                               1)
                             #f))))))
         'stem)
 
-   ;;(cons (lambda (slur dir) (begin (display "before loose-end") (newline))#f) #f)
+   ;; (cons (lambda (slur dir) (begin (display "before loose-end") (newline))#f) #f)
    (cons (lambda (slur dir) (not (attached-to-stem slur dir)))  'loose-end)
    ;; (cons (lambda (slur dir) (begin (display "after loose-end") (newline))#f) #f)
 
@@ -77,7 +86,7 @@
 
 ;; This list defines the offsets for each type of attachment.
 ;; The format of each element is
-;; (stem-dir * dir . slur-dir * dir)
+;; (attachment stem-dir*dir slur-dir*dir)
 ;; Different attachments have different default points:
 ;;
 ;; head: Default position is centered in X, on outer side of head Y
@@ -85,13 +94,33 @@
 ;; stem: Default position is on stem X, at stem end Y
 (define default-slur-extremity-offset-alist
   '(
-    ((head 1 1) . (-0.25 . 0.25))
-    ((head 1 -1) . (-0.25 . -0.25))
-    ((head -1 1) . (-0.25 . 0.25))
-    ((head -1 -1) . (-0.85 . -0.25))
+    ((head 1 1) . (-0.25 . 0.75))
+    ((head 1 -1) . (-0.25 . 0.75))
+    ((head -1 1) . (-0.25 . 0.75))
+    ((head -1 -1) . (-0.85 . 0.75))
+
+    ((stem 1 1) . (-0.125 . 0.5))
+    ((stem -1 -1) . (-0.125 . 0.5))
+
+    ((loose-end 1 1) . (-0.4 . 0))
+    ((loose-end 1 -1) . (-0.4 . 0))
+    ((loose-end -1 -1) . (-4 . 0))
+    ((loose-end -1 1) . (-4 . 0))
+    ))
+
+;; This is a bit of a hack: slurs and phrasing slurs
+;; attaching at the same note must not collide.
+;; However, slurs (and phrasing slurs) should look
+;; at scripts and eachother.
+(define default-phrasing-slur-extremity-offset-alist
+  '(
+    ((head 1 1) . (-0.25 . 1.25))
+    ((head 1 -1) . (-0.25 . 1.25))
+    ((head -1 1) . (-0.25 . 1.25))
+    ((head -1 -1) . (-0.85 . 1.25))
 
-    ((stem 1 1) . (0 . 0.5))
-    ((stem -1 -1) . (0 . -0.5))
+    ((stem 1 1) . (-0.25 . 1.5))
+    ((stem -1 -1) . (-0.25 . 1.5))
 
     ((loose-end 1 1) . (-0.4 . 0))
     ((loose-end 1 -1) . (-0.4 . 0))
@@ -100,19 +129,3 @@
     ))
 
 
-(define default-basic-slur-properties
-  `(
-   (interfaces . (slur-interface))
-   (molecule-callback . ,Slur::brew_molecule)
-   (thickness . 1.2)           
-   (spacing-procedure . ,Slur::set_spacing_rods)               
-   (minimum-length . 1.5)
-   (after-line-breaking-callback . ,Slur::after_line_breaking)
-   (extremity-rules . ,default-slur-extremity-rules)
-   (extremity-offset-alist . ,default-slur-extremity-offset-alist)
-   (de-uglify-parameters . ( 1.5  0.8  -2.0))
-   (details . ((height-limit . 2.0) (ratio . 0.333) (force-blowfit . 0.5) (beautiful . 0.5)))
-   (y-free . 0.75)
-   (name . "Slur")
-   )
-  )