]> git.donarmstrong.com Git - lilypond.git/blobdiff - scm/page.scm
Add '-dcrop' option to ps and svg backends
[lilypond.git] / scm / page.scm
index 6be4d6450d1ba063ea8e18a33d75be3529ecbd5f..20e58b61e21c4bf0bcdac8a61318a15cebace630 100644 (file)
@@ -1,6 +1,6 @@
 ;;;; This file is part of LilyPond, the GNU music typesetter.
 ;;;;
-;;;; Copyright (C) 2006--2010 Han-Wen Nienhuys <hanwen@xs4all.nl>
+;;;; Copyright (C) 2006--2015 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
 (define-module (scm page)
 
   #:export (make-page
-           page-property
-           page-set-property!
-           page-prev
-           page-printable-height
-           layout->page-init
-           page-force
-           page-penalty
-           page-configuration
-           page-lines
-           page-page-number
-           page-system-numbers
-           page-stencil
-           page-free-height
-           page?
-           ))
+            page-property
+            page-set-property!
+            page-prev
+            page-printable-height
+            layout->page-init
+            page-force
+            page-penalty
+            page-configuration
+            page-lines
+            page-page-number
+            page-system-numbers
+            page-stencil
+            page-free-height
+            page?
+            ))
 
 (use-modules (lily)
-            (scm paper-system)
-            (srfi srfi-1))
+             (scm paper-system)
+             (srfi srfi-1))
 
 
 (define (annotate? layout)
@@ -48,9 +48,9 @@
 (define (make-page paper-book  . args)
   (let*
       ((p (apply ly:make-prob (append
-                              (list 'page (layout->page-init (ly:paper-book-paper paper-book))
-                                    'paper-book paper-book)
-                              args))))
+                               (list 'page (layout->page-init (ly:paper-book-paper paper-book))
+                                     'paper-book paper-book)
+                               args))))
 
     (page-set-property! p 'head-stencil (page-header p))
     (page-set-property! p 'foot-stencil (page-footer p))
@@ -69,7 +69,7 @@
  (lambda (j)
    (module-define!
     page-module
-    (string->symbol (format "page-~a" j))
+    (string->symbol (format #f "page-~a" j))
     (lambda (pg)
       (page-property pg j))))
 
 (define (page-translate-systems page)
   (for-each
 
-   (lambda (sys-off)
-     (let*
-        ((sys (car sys-off))
-         (off (cadr sys-off)))
+   (lambda (sys off)
+     (if (not (number? (ly:prob-property sys 'Y-offset)))
+         (ly:prob-set-property! sys 'Y-offset off)))
 
-       (if (not (number? (ly:prob-property sys 'Y-offset)))
-          (ly:prob-set-property! sys 'Y-offset off))))
-
-   (zip (page-property page 'lines)
-       (page-property page 'configuration))))
+   (page-property page 'lines)
+   (page-property page 'configuration)))
 
 (define (annotate-top-space first-system layout header-stencil stencil)
   (let* ((top-margin (ly:output-def-lookup layout 'top-margin))
-        (sym (if (paper-system-title? first-system)
-                 'top-title-spacing
-                 'top-system-spacing))
-        (spacing-spec (ly:output-def-lookup layout sym))
-        (X-offset (ly:prob-property first-system 'X-offset 5))
-        (header-extent (ly:stencil-extent header-stencil Y)))
+         (sym (if (paper-system-title? first-system)
+                  'top-markup-spacing
+                  'top-system-spacing))
+         (spacing-spec (ly:output-def-lookup layout sym))
+         (X-offset (ly:prob-property first-system 'X-offset 5))
+         (header-extent (ly:stencil-extent header-stencil Y)))
 
     (set! stencil
-         (ly:stencil-add stencil
-                         (ly:stencil-translate-axis
-                          (annotate-spacing-spec layout
-                                                 spacing-spec
-                                                 (- top-margin)
-                                                 (car header-extent)
-                                                 #:base-color red)
-                          X-offset X)))
+          (ly:stencil-add stencil
+                          (ly:stencil-translate-axis
+                           (annotate-spacing-spec layout
+                                                  (symbol->string sym)
+                                                  spacing-spec
+                                                  (- top-margin)
+                                                  (car header-extent)
+                                                  #:base-color red)
+                           X-offset X)))
     stencil))
 
 
 (define (annotate-page layout stencil)
   (let ((top-margin (ly:output-def-lookup layout 'top-margin))
-       (paper-height (ly:output-def-lookup layout 'paper-height))
-       (bottom-margin (ly:output-def-lookup layout 'bottom-margin))
-       (add-stencil (lambda (y)
-                      (set! stencil
-                            (ly:stencil-add stencil
-                                            (ly:stencil-translate-axis y 6 X))))))
+        (paper-height (ly:output-def-lookup layout 'paper-height))
+        (bottom-margin (ly:output-def-lookup layout 'bottom-margin))
+        (add-stencil (lambda (y)
+                       (set! stencil
+                             (ly:stencil-add stencil
+                                             (ly:stencil-translate-axis y 6 X))))))
     (add-stencil
      (ly:stencil-translate-axis
       (annotate-y-interval layout "paper-height"
-                          (cons (- paper-height) 0)
-                          #t)
+                           (cons (- paper-height) 0)
+                           #t)
       1 X))
     (add-stencil
      (ly:stencil-translate-axis
       (annotate-y-interval layout "top-margin"
-                          (cons (- top-margin) 0)
-                          #t)
+                           (cons (- top-margin) 0)
+                           #t)
       2 X))
     (add-stencil
      (ly:stencil-translate-axis
       (annotate-y-interval layout "bottom-margin"
-                          (cons (- paper-height) (- bottom-margin paper-height))
-                          #t)
+                           (cons (- paper-height) (- bottom-margin paper-height))
+                           #t)
       2 X))
     stencil))
 
       ((paper-book (page-property page 'paper-book))
        (layout (ly:paper-book-paper paper-book))
        (arrow (annotate-y-interval layout
-                                  "space left"
-                                  (cons (- 0.0
-                                           (page-property page 'bottom-edge)
-                                           (let ((foot (page-property page 'foot-stencil)))
-                                             (if (and (ly:stencil? foot)
-                                                      (not (ly:stencil-empty? foot)))
-                                                 (car (ly:stencil-extent foot Y))
-                                                 0.0)))
-                                        (page-property page  'bottom-system-edge))
-                                  #t)))
+                                   "space left"
+                                   (cons (- 0.0
+                                            (page-property page 'bottom-edge)
+                                            (let ((foot (page-property page 'foot-stencil)))
+                                              (if (and (ly:stencil? foot)
+                                                       (not (ly:stencil-empty? foot)))
+                                                  (car (ly:stencil-extent foot Y))
+                                                  0.0)))
+                                         (page-property page  'bottom-system-edge))
+                                   #t)))
 
     (set! arrow (ly:stencil-translate-axis arrow 8 X))
 
        (is-last-bookpart (page-property page 'is-last-bookpart))
        (is-bookpart-last-page (page-property page 'is-bookpart-last-page))
        (sym (if (= dir UP)
-               'make-header
-               'make-footer))
+                'make-header
+                'make-footer))
        (header-proc (ly:output-def-lookup layout sym)))
 
     (if (procedure? header-proc)
-       (header-proc layout scopes number is-last-bookpart is-bookpart-last-page)
-       #f)))
+        (header-proc layout scopes number is-last-bookpart is-bookpart-last-page)
+        #f)))
 
 
 (define (page-header page)
        (left-margin (ly:output-def-lookup layout 'left-margin))
        (right-margin (ly:output-def-lookup layout 'right-margin))
        (bottom-edge (- paper-height
-                      (ly:output-def-lookup layout 'bottom-margin)) )
+                       (ly:output-def-lookup layout 'bottom-margin)) )
        (top-margin (ly:output-def-lookup layout 'top-margin))
        )
 
        (system-xoffset (ly:output-def-lookup layout 'horizontal-shift 0.0))
        (system-separator-markup (ly:output-def-lookup layout 'system-separator-markup))
        (system-separator-stencil (if (markup? system-separator-markup)
-                                    (interpret-markup layout
-                                                      (layout-extract-page-properties layout)
-                                                      system-separator-markup)
-                                    #f))
+                                     (interpret-markup layout
+                                                       (layout-extract-page-properties layout)
+                                                       system-separator-markup)
+                                     #f))
 
-       (page-stencil (ly:make-stencil '()))
+       (page-stencil empty-stencil)
 
        (last-system #f)
        (last-y 0.0)
        (add-to-page (lambda (stencil x y)
-                     (set! page-stencil
-                           (ly:stencil-add page-stencil
-                                           (ly:stencil-translate stencil
-                                                                 (cons
-                                                                  (+ system-xoffset x)
-                                                                  (- 0 y (prop 'top-margin)))
-
-                                                                 )))))
+                      (set! page-stencil
+                            (ly:stencil-add page-stencil
+                                            (ly:stencil-translate stencil
+                                                                  (cons
+                                                                   (+ system-xoffset x)
+                                                                   (- 0 y (prop 'top-margin)))
+
+                                                                  )))))
        (add-system
-       (lambda (system)
-         (let* ((stencil (paper-system-stencil system))
-                (y (ly:prob-property system 'Y-offset))
-                (is-title (paper-system-title?
-                           system)))
-           (add-to-page stencil
-                        (ly:prob-property system 'X-offset 0.0)
-                        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
-                0
-                (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))))
+        (lambda (system)
+          (let* ((stencil (paper-system-stencil system))
+                 (extra-offset (ly:prob-property system 'extra-offset '(0 . 0)))
+                 (x (+ (ly:prob-property system 'X-offset 0.0)
+                       (car extra-offset)))
+                 (y (+ (ly:prob-property system 'Y-offset 0.0)
+                       (cdr extra-offset)))
+                 (is-title (paper-system-title?
+                            system)))
+            (add-to-page stencil x 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
+                 0
+                 (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))))
        (head (prop 'head-stencil))
        (foot (prop 'foot-stencil))
        )
 
     (if (and
-        (ly:stencil? head)
-        (not (ly:stencil-empty? head)))
-       (begin
-         ;; Ensure that the top of the header just touches the top margin.
-         (set! head (ly:stencil-translate-axis head
-                                               (- 0 (cdr (ly:stencil-extent head Y)) (prop 'top-margin)) Y))
-         (set! page-stencil (ly:stencil-add page-stencil head))))
+         (ly:stencil? head)
+         (not (ly:stencil-empty? head)))
+        (begin
+          ;; Ensure that the top of the header just touches the top margin.
+          (set! head (ly:stencil-translate-axis head
+                                                (- 0 (cdr (ly:stencil-extent head Y)) (prop 'top-margin)) Y))
+          (set! page-stencil (ly:stencil-add page-stencil head))))
 
     (if (and
-        (annotate? layout)
-        (pair? lines))
+         (annotate? layout)
+         (pair? lines))
 
-       (begin
-         (set! page-stencil (annotate-top-space (car lines) layout head page-stencil))
+        (begin
+          (set! page-stencil (annotate-top-space (car lines) layout head page-stencil))
 
-         (for-each (lambda (sys next-sys)
-                     (paper-system-annotate sys next-sys layout))
-                   lines
-                   (append (cdr lines) (list #f)))
-         (paper-system-annotate-last (car (last-pair lines)) layout)))
+          (for-each (lambda (sys next-sys)
+                      (paper-system-annotate sys next-sys layout))
+                    lines
+                    (append (cdr lines) (list #f)))
+          (paper-system-annotate-last (car (last-pair lines)) layout)))
 
-    (map add-system lines)
+    (for-each add-system lines)
 
 
     (ly:prob-set-property! page 'bottom-system-edge
-                          (car (ly:stencil-extent page-stencil Y)))
+                           (car (ly:stencil-extent page-stencil Y)))
     (ly:prob-set-property! page 'space-left
-                          (+ (prop 'bottom-edge)
-                             (prop 'bottom-system-edge)
-                             (if (and (ly:stencil? foot)
-                                      (not (ly:stencil-empty? foot)))
-                                 (car (ly:stencil-extent foot Y))
-                                 0.0)))
+                           (+ (prop 'bottom-edge)
+                              (prop 'bottom-system-edge)
+                              (if (and (ly:stencil? foot)
+                                       (not (ly:stencil-empty? foot)))
+                                  (car (ly:stencil-extent foot Y))
+                                  0.0)))
 
     (if (annotate? layout)
-       (set! page-stencil
-             (ly:stencil-add page-stencil
-                             (annotate-space-left page))))
+        (set! page-stencil
+              (ly:stencil-add page-stencil
+                              (annotate-space-left page))))
 
     (if (and (ly:stencil? foot)
-            (not (ly:stencil-empty? foot)))
-       (set! page-stencil
-             (ly:stencil-add
-              page-stencil
-              (ly:stencil-translate
-               foot
-               (cons 0
-                     (+ (- (prop 'bottom-edge))
-                        (- (car (ly:stencil-extent foot Y)))))))))
+             (not (ly:stencil-empty? foot)))
+        (set! page-stencil
+              (ly:stencil-add
+               page-stencil
+               (ly:stencil-translate
+                foot
+                (cons 0
+                      (+ (- (prop 'bottom-edge))
+                         (- (car (ly:stencil-extent foot Y)))))))))
 
     (if (ly:output-def-lookup layout 'two-sided #f)
-       (set! page-stencil
-             (ly:stencil-translate page-stencil
-                                   (cons (prop (if (even? number)
-                                                   'left-margin
-                                                   'right-margin))
-                                         0)))
-       (set! page-stencil
-             (ly:stencil-translate page-stencil (cons (prop 'left-margin) 0))))
+        (set! page-stencil
+              (ly:stencil-translate page-stencil
+                                    (cons (prop (if (even? number)
+                                                    'left-margin
+                                                    'right-margin))
+                                          0)))
+        (set! page-stencil
+              (ly:stencil-translate page-stencil (cons (prop 'left-margin) 0))))
 
     ;; annotation.
     (if (annotate? layout)
-       (set! page-stencil (annotate-page layout page-stencil)))
+        (set! page-stencil (annotate-page layout page-stencil)))
 
     page-stencil))
 
       ((paper-book (page-property page 'paper-book))
        (layout (ly:paper-book-paper paper-book))
        (h (- (ly:output-def-lookup layout 'paper-height)
-            (ly:output-def-lookup layout 'top-margin)
-            (ly:output-def-lookup layout 'bottom-margin)))
+             (ly:output-def-lookup layout 'top-margin)
+             (ly:output-def-lookup layout 'bottom-margin)))
 
        (head (page-property page 'head-stencil))
        (foot (page-property page 'foot-stencil))
        (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))))
+        (- 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))
       (page-set-property! page 'printable-height (calc-printable-height page)))
 
   (page-property page 'printable-height))
-