- (begin
- (set! head-stencil
- (ly:stencil-combine-at-edge
- stencil Y dir head-stencil
- sep 0.0))
-
-
- ;; add arrow markers
- (if (annotate? layout)
- (set! head-stencil
- (ly:stencil-add
- (ly:stencil-translate-axis
- (annotate-y-interval layout
- (symbol->string separation-symbol)
- (cons (min 0 (* dir sep))
- (max 0 (* dir sep)))
- #t)
- (/ (ly:output-def-lookup layout 'linewidth) 2)
- X)
- head-stencil
- ))
- )))
-
- head-stencil))
-
-(define-public (default-page-music-height layout scopes number last?)
- "Printable area for music and titles; matches default-page-make-stencil."
- (let* ((h (- (ly:output-def-lookup layout 'vsize)
- (ly:output-def-lookup layout 'topmargin)
- (ly:output-def-lookup layout 'bottommargin)))
-
- (head (page-headfoot layout scopes number 'make-header 'headsep UP last?))
- (foot (page-headfoot layout scopes number 'make-footer 'footsep DOWN last?))
- (available
- (- h (if (ly:stencil? head)
- (interval-length (ly:stencil-extent head Y))
- 0)
- (if (ly:stencil? foot)
- (interval-length (ly:stencil-extent foot Y))
- 0))))
-
- ;; (display (list "\n available" available head foot))
- available))
-
-(define-public (default-page-make-stencil
- lines offsets layout scopes number last?)
- "Construct a stencil representing the page from LINES.
-
- Offsets is a list of increasing numbers. They must be negated to
-create offsets.
- "
-
- (let* ((topmargin (ly:output-def-lookup layout 'topmargin))
-
- ;; TODO: naming vsize/hsize not analogous to TeX.
-
- (vsize (ly:output-def-lookup layout 'vsize))
- (hsize (ly:output-def-lookup layout 'hsize))
-
- (system-xoffset (ly:output-def-lookup layout 'horizontalshift 0.0))
- (system-separator-markup (ly:output-def-lookup layout 'systemSeparatorMarkup))
- (system-separator-stencil (if (markup? system-separator-markup)
- (interpret-markup layout
- (layout-extract-page-properties layout)
- system-separator-markup)
- #f))
- (lmargin (ly:output-def-lookup layout 'leftmargin))
- (leftmargin (if lmargin
- lmargin
- (/ (- hsize
- (ly:output-def-lookup layout 'linewidth)) 2)))
-
- (rightmargin (ly:output-def-lookup layout 'rightmargin))
- (bottom-edge (- vsize
- (ly:output-def-lookup layout 'bottommargin)))
-
- (head (page-headfoot layout scopes number 'make-header 'headsep UP last?))
- (foot (page-headfoot layout scopes number 'make-footer 'footsep DOWN last?))
-
- (head-height (if (ly:stencil? head)
- (interval-length (ly:stencil-extent head Y))
- 0.0))
-
- (height-proc (ly:output-def-lookup layout 'page-music-height))
-
- (page-stencil (ly:make-stencil '()
- (cons leftmargin hsize)
- (cons (- topmargin) 0)))
- (last-system #f)
- (last-y 0.0)
- (add-to-page (lambda (stencil y)
- (set! page-stencil
- (ly:stencil-add page-stencil
- (ly:stencil-translate stencil
- (cons
- system-xoffset
- (- 0 head-height y topmargin))
-
- )))))
- (add-system
- (lambda (stencil-position)
- (let* ((system (car stencil-position))
- (stencil (paper-system-stencil system))
- (y (cadr stencil-position))
- (is-title (paper-system-title?
- (car stencil-position))))
- (add-to-page stencil y)
- (if (and (ly:stencil? system-separator-stencil)
- last-system
- (not (paper-system-title? system))
- (not (paper-system-title? last-system)))
- (add-to-page
- system-separator-stencil
- (average (- last-y
- (car (paper-system-staff-extents last-system)))
- (- y
- (cdr (paper-system-staff-extents system))))))
- (set! last-system system)
- (set! last-y y))))
- )