-;;;; output-gnome.scm -- implement GNOME canvas output
-;;;;
-;;;; source file of the GNU LilyPond music typesetter
-;;;;
-;;;; (c) 2004--2005 Jan Nieuwenhuizen <janneke@gnu.org>
-
-;;;; TODO:
-;;;;
-;;;; * .cff MUST NOT be in fc's fontpath.
-;;;; - workaround: remove mf/out from ~/.fonts.conf,
-;;;; instead add ~/.fonts and symlink all /mf/out/*otf there.
-;;;; - bug in fontconfig/freetype/pango?
-
-;;; * check: blot+scaling
-;;; * Figure out and fix font scaling and character placement
-;;; * EC font package: add missing X font directories and AFMs
-;;; * User-interface, keybindings
-;;; * Implement missing stencil functions
-;;; * Implement missing commands
-;;; * More information in stencils, e.g., location and grob tag.
-;;; * Embedded Lily:
-;;; - allow GnomeCanvas or `toplevel' GtkWindow to be created
-;;; outside of LilyPond
-;;; - lilylib.
-;;; * Release schedule and packaging of dependencies.
-;;; - g-wrap-1.9.3 is already in incoming.
-;;; - guile-gnome-platform-2.8.0 will probably be packaged early 2005.
-
-;;; You need:
-;;;
-;;; * Rotty's g-wrap >= 1.9.3
-;;; * guile-gnome-platform >= 2.7.97
-;;; * pango >= 1.6.0
-;;;
-;;; See also: guile-gtk-general@gnu.org
-
-;;; Try it
-;;;
-;;; * Install gnome/gtk and libffi development stuff
-;;;
-;;; * Install [pango, g-wrap and] guile-gnome from source,
-;;; see buildscripts/guile-gnome.sh
-;;;
-;;; * Build LilyPond with gui support: configure --enable-gui
-;;;
-;;; * Supposing that LilyPond was built in ~/cvs/savannah/lilypond,
-;;; tell fontconfig about the feta fonts dir and run fc-cache
-"
-cat > ~/.fonts.conf << EOF
-<fontconfig>
-<dir>~/cvs/savannah/lilypond/mf/out</dir>
-<dir>/usr/share/texmf/fonts/type1/public/ec-fonts-mftraced</dir>
-</fontconfig>
-EOF
-fc-cache
-"
-;;; or copy all your .pfa/.pfb's to ~/.fonts if your fontconfig
-;;; already looks there for fonts. Check if it works by doing:
-"
-fc-list | grep -i lily
-"
-;;;
-;;; * Setup environment
-"
-export GUILE_LOAD_PATH=$HOME/usr/pkg/g-wrap/share/guile/site:$HOME/usr/pkg/g-wrap/share/guile/site/g-wrap:$HOME/usr/pkg/guile-gnome/share/guile:$GUILE_LOAD_PATH
-export LD_LIBRARY_PATH=$HOME/usr/pkg/pango/lib:$HOME/usr/pkg/g-wrap/lib:$HOME/usr/pkg/guile-gnome/lib:$LD_LIBRARY_PATH
-export XEDITOR='/usr/bin/emacsclient --no-wait +%l:%c %f'
-"
-;;; * Also for GNOME point-and-click, you need to set XEDITOR and add
-"
-#(ly:set-point-and-click 'line-column)
-"
-;;; to your .ly.
-;;;
-;;; * Run lily:
-"
-lilypond -fgnome input/simple-song.ly
-"
-;;; point-and-click: (mouse-1) click on a graphical object;
-;;; grob-property-list: (mouse-3) click on a graphical object.
-
-(debug-enable 'backtrace)
-
-(define-module (scm output-gnome))
-(define this-module (current-module))
-
-(use-modules
- (guile)
- (ice-9 regex)
- (srfi srfi-13)
- (lily)
- (gnome gtk)
- (gnome gw canvas))
-
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;;; globals
-
-;;; set by framework-gnome.scm
-(define canvas-root #f)
-(define output-scale #f)
-
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;; helper functions
-
-(define (utf8 i)
- (cond
- ((< i #x80) (list (integer->char i)))
- ((< i #x800) (map integer->char
- (list (+ #xc0 (quotient i #x40))
- (+ #x80 (modulo i #x40)))))
- ((< i #x10000)
- (let ((x (quotient i #x1000))
- (y (modulo i #x1000)))
- (map integer->char
- (list (+ #xe0 x)
- (+ #x80 (quotient y #x40))
- (+ #x80 (modulo y #x40))))))
- (else (begin (stderr "programming-error: utf8 too big:~x\n" i)
- (list (integer->char 32))))))
-
-(define (integer->utf8-string integer)
- (list->string (utf8 integer)))
-
-(define (char->utf8-string char)
- (list->string (utf8 (char->integer char))))
-
-(define (string->utf8-string string)
- (apply
- string-append
- (map (lambda (x) (char->utf8-string x)) (string->list string))))
-
-(define (music-font? font)
- (let ((family (car (font-name-style font))))
- (string=? (substring family 0 (min (string-length family) 10))
- "Emmentaler")))
-
-;;; FONT may be font smob, or pango font string
-(define (pango-font-name font)
- (if (string? font)
- (list font "Regular")
- (apply format (append '(#f "~a, ~a") (font-name-style font)))))
-
-;;; FONT may be font smob, or pango font string
-(define (canvas-font-size font)
- ;; FIXME: 1.85?
- (* 1.85
- (if (string? font)
- 12
- (* output-scale (modified-font-metric-font-scaling font)))))
-
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;;; Wrappers from guile-gnome TLA
-;;; guile-gnome-devel@gnu.org--2004
-;;; http://arch.gna.org/guile-gnome/archive-2004
-;;;
-;;; janneke@gnu.org--2004-gnome
-;;; http://lilypond.org/~janneke/{arch}/2004-gnome
-;;;
-(if (not (defined? '<gnome-canvas-path-def>))
- (begin
- (define-class <gnome-canvas-path-def> (<gobject>)
- (closure #:init-value (gnome-canvas-path-def-new)
- #:init-keyword #:path-def
- #:getter get-def #:setter set-def))
-
- (define-method (moveto (this <gnome-canvas-path-def>) x y)
- (gnome-canvas-path-def-moveto (get-def this) x y))
- (define-method (curveto (this <gnome-canvas-path-def>) x1 y1 x2 y2 x3 y3)
- (gnome-canvas-path-def-curveto (get-def this) x1 y1 x2 y2 x3 y3))
- (define-method (lineto (this <gnome-canvas-path-def>) x y)
- (gnome-canvas-path-def-lineto (get-def this) x y))
- (define-method (closepath (this <gnome-canvas-path-def>))
- (gnome-canvas-path-def-closepath (get-def this)))
- (define-method (reset (this <gnome-canvas-path-def>))
- (gnome-canvas-path-def-reset (get-def this)))
-
- (define -set-path-def set-path-def)
- (define -get-path-def get-path-def)
-
- (define-method (set-path-def (this <gnome-canvas-shape>)
- (def <gnome-canvas-path-def>))
- (-set-path-def this (get-def def)))
-
- (define-method (get-path-def (this <gnome-canvas-shape>))
- (make <gnome-canvas-path-def> #:path-def (-get-path-def this)))))
-
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;;; stencil outputters
-;;;
-
-;;; catch-all for missing stuff
-;;; comment this out to see find out what functions you miss :-)
-(define (dummy . foo) #f)
-(map (lambda (x) (module-define! this-module x dummy))
- (append
- (ly:all-stencil-expressions)
- (ly:all-output-backend-commands)))
-
-(define (beam width slope thick blot)
- (define cursor '(0 . 0))
- (define (rmoveto def x y)
- (set! cursor (cons (+ x (car cursor)) (+ y (cdr cursor))))
- (moveto def (car cursor) (cdr cursor)))
- (define (rlineto def x y)
- (set! cursor (cons (+ x (car cursor)) (+ y (cdr cursor))))
- (lineto def (car cursor) (cdr cursor)))
- (let* ((def (make <gnome-canvas-path-def>))
- (bezier (make <gnome-canvas-bpath>
- #:parent (canvas-root)
- #:fill-color "black"
- #:outline-color "black"
- #:width-units blot
- #:join-style 'round))
- (t (- thick blot))
- (w (- width blot))
- (h (* w slope)))
-
- (reset def)
- (rmoveto def (/ blot 2) (/ t 2))
- (rlineto def w (- h))
- (rlineto def 0 (- t))
- (rlineto def (- w) h)
- (rlineto def 0 t)
- (closepath def)
- (set-path-def bezier def)
- bezier))
-
-(define (square-beam width slope thick blot)
- (let* ((def (make <gnome-canvas-path-def>))
- (y (* (- width) slope))
- (props (make <gnome-canvas-bpath>
- #:parent (canvas-root)
- #:fill-color "black"
- #:outline-color "black"
- #:width-units 0.0)))
-
- (reset def)
- (moveto def 0 0)
- (lineto def width y)
- (lineto def width (- y thick))
- (lineto def 0 (- thick))
- (lineto def 0 0)
- (closepath def)
- (set-path-def props def)
- props))
-
-;; two beziers
-(define (bezier-sandwich lst thick)
- (let* ((def (make <gnome-canvas-path-def>))
- (bezier (make <gnome-canvas-bpath>
- #:parent (canvas-root)
- #:fill-color "black"
- #:outline-color "black"
- #:width-units thick
- #:join-style 'round)))
-
- (reset def)
-
- ;; FIXME: LST is pre-mangled for direct ps stack usage
- ;; cl cr r l 0 1 2 3
- ;; cr cl l r 4 5 6 7
-
- (moveto def (car (list-ref lst 3)) (- (cdr (list-ref lst 3))))
- (curveto def (car (list-ref lst 0)) (- (cdr (list-ref lst 0)))
- (car (list-ref lst 1)) (- (cdr (list-ref lst 1)))
- (car (list-ref lst 2)) (- (cdr (list-ref lst 2))))
-
- (lineto def (car (list-ref lst 7)) (- (cdr (list-ref lst 7))))
- (curveto def (car (list-ref lst 4)) (- (cdr (list-ref lst 4)))
- (car (list-ref lst 5)) (- (cdr (list-ref lst 5)))
- (car (list-ref lst 6)) (- (cdr (list-ref lst 6))))
- (lineto def (car (list-ref lst 3)) (- (cdr (list-ref lst 3))))
-
- (closepath def)
- (set-path-def bezier def)
- bezier))
-
-(define (char font i)
- (text font (ly:font-index-to-charcode font i)))
-
-(define (dashed-line thick on off dx dy)
- (draw-line thick 0 0 dx dy))
-
-(define (draw-line thick x1 y1 x2 y2)
- (let* ((def (make <gnome-canvas-path-def>))
- (props (make <gnome-canvas-bpath>
- #:parent (canvas-root)
- #:fill-color "black"
- #:outline-color "black"
- #:width-units thick)))
- (reset def)
- (moveto def x1 (- y1))
- (lineto def x2 (- y2))
- (set-path-def props def)
- props))
-
-;; FIXME: naming
-(define (filledbox breapth width depth height)
- (make <gnome-canvas-rect>
- #:parent (canvas-root)
- #:x1 (- breapth) #:y1 depth #:x2 width #:y2 (- height)
- #:fill-color "black"
- #:join-style 'miter))
-
-;; FIXME: the framework-gnome backend needs to see every item that
-;; gets created. All items created here must should be put in a group
-;; that gets returned.
-(define (glyph-string font postscript-font-name x-y-named-glyphs)
- (for-each
- (lambda (x)
-
- ;; UGR, glyph names not found
- (stderr "GLYPH:~S\n" (caddr x))
- (stderr "ID:~S\n" (ly:font-glyph-name-to-charcode font (caddr x)))
- (placebox (car x) (cadr x)
- (make <gnome-canvas-text>
- #:parent (canvas-root)
- ;;#:x 0.0 #:y (if (music-font? font) 0.15 0.69)
- #:x 0.0 #:y 0.0
- #:anchor 'west
- #:font (pango-font-name font)
- #:size-points (canvas-font-size font)
- #:size-set #t
- #:text
- (integer->utf8-string
- (ly:font-glyph-name-to-charcode font (caddr x))))))
- x-y-named-glyphs))
-
-(define (grob-cause offset grob)
- grob)
-
-;; WTF is this in every backend?
-(define (horizontal-line x1 x2 thickness)
- (filledbox (- x1) (- x2 x1) (* .5 thickness) (* .5 thickness)))
-
-(define (named-glyph font name)
- (text font (ly:font-glyph-name-to-charcode font name)))
-
-(define (placebox x y expr)
- (let ((item expr))
- ;;(if item
- ;; FIXME ugly hack to skip #unspecified ...
- (if (and item (not (eq? item (if #f #f))))
- (begin
- (move item (* output-scale x) (* output-scale (- y)))
- (affine-relative item output-scale 0 0 output-scale 0 0)
- item)
- #f)))
-
-(define (polygon coords blot-diameter)
- (let* ((def (make <gnome-canvas-path-def>))
- (props (make <gnome-canvas-bpath>
- #:parent (canvas-root)
- #:fill-color "black"
- #:outline-color "black"
- #:join-style 'round)
- #:width-units blot-diameter)
- (points (ly:list->offsets '() coords))
- (last-point (car (last-pair points))))
-
- (reset def)
- (moveto def (car last-point) (cdr last-point))
- (for-each (lambda (x) (lineto def (car x) (cdr x))) points)
- (closepath def)
- (set-path-def props def)
- props))
-
-(define (round-filled-box breapth width depth height blot-diameter)
- (let ((r (/ blot-diameter 2)))
- (make <gnome-canvas-rect>
- #:parent (canvas-root)
- #:x1 (- r breapth) #:y1 (- depth r) #:x2 (- width r) #:y2 (- r height)
- #:fill-color "black"
- #:outline-color "black"
- #:width-units blot-diameter
- #:join-style 'round)))
-
-(define (text font s)
- (make <gnome-canvas-text>
- #:parent (canvas-root)
- ;;#:x 0.0 #:y 0.0
- #:x 0.0 #:y (if (music-font? font) 0.15 0.69)
- #:anchor (if (music-font? font) 'west 'south-west)
- #:font (pango-font-name font)
- #:size-points (canvas-font-size font)
- #:size-set #t
- #:text (if (integer? s)
- (integer->utf8-string s)
- (string->utf8-string s))))
-
-(define (utf8-string pango-font-description string)
- (make <gnome-canvas-text>
- #:parent (canvas-root)
- #:x 0.0 #:y 0.0
- #:anchor 'west
- #:font pango-font-description
- #:size-points (canvas-font-size pango-font-description)
- #:size-set #t
- #:text string))
projects / lilypond.git / blobdiff