1 ;;;; output-gnome.scm -- implement GNOME canvas output
3 ;;;; source file of the GNU LilyPond music typesetter
5 ;;;; (c) 2004 Jan Nieuwenhuizen <janneke@gnu.org>
8 ;;; HIP -- hack in progress
10 ;;; status: hello-world
12 ;;; This first working version needs rotty's g-wrap--tng.
13 ;;; (janneke's guile-gnome patches now in main archive).
16 ;;; lilypond-bin -fgnome input/simple-song.ly
20 ;;; * pango+feta font (see archives gtk-i18n-list@gnome.org and
22 ;;; - wait for/help with pango 1.6
23 ;;; - convert feta to OpenType (CFF) or TrueType (fontforge?)
24 ;;; - hack feta20: use latin1 encoding for gnome backend
25 ;;; * implement missing stencil functions
26 ;;; * implement missing commands (next, prev? page)
28 ;;; Note: this install information is volatile
29 ;;; you'll probably want to pull all from
30 ;;; from guile-gnome-devel@gnu.org--2004 soon
32 ;;; move this into workbook?
35 ## install gnome-devel
37 ## use guile-1.6 for g-wrap/guile-gnome
41 tla register-archive a.rottmann@gmx.at--2004-main http://people.debian.org/~rotty/arch/a.rottmann@gmx.at/2004-main || true
44 tla get a.rottmann@gmx.at--2004-main/g-wrap--tng gw-pristine
47 AUTOMAKE=automake-1.8 AUTOCONF=autoconf2.50 sh autogen.sh --noconfigure
50 ../configure --prefix=$HOME/usr/pkg/g-wrap
56 tla register-archive guile-gnome-devel@gnu.org--2004 http://people.debian.org/~rotty/arch/guile-gnome-devel@gnu.org/2004/ || true
58 tla guile-gnome-devel@gnu.org--2004/dists--dev guile-gnome
60 tla build-config -r configs/gnu.org/dev
63 AUTOMAKE=automake-1.8 AUTOCONF=autoconf2.50 sh autogen.sh --noconfigure
67 export GUILE_LOAD_PATH=$HOME/usr/pkg/g-wrap/share/guile/site:$GUILE_LOAD_PATH
68 export LD_LIBRARY_PATH=$HOME/usr/pkg/g-wrap/lib:$LD_LIBRARY_PATH
69 export PKG_CONFIG_PATH=$HOME/usr/pkg/g-wrap/lib/pkgconfig:$PKG_CONFIG_PATH
71 ../src/configure --prefix=$HOME/usr/pkg/guile-gnome
73 G_WRAP_MODULE_DIR=$HOME/usr/pkg/g-wrap/share/guile/site make install
75 (cd $HOME/usr/pkg/guile-gnome/share/guile/gnome && mv gtk/g[dt]k.scm gw)
77 export GUILE_LOAD_PATH=$HOME/usr/pkg/guile-gnome/share/guile:$GUILE_LOAD_PATH
78 export LD_LIBRARY_PATH=$HOME/usr/pkg/guile-gnome/lib:$LD_LIBRARY_PATH
79 guile -s ../src/gtk/examples/hello.scm
82 lilypond-bin -fgnome input/simple-song.ly
89 (debug-enable 'backtrace)
91 (define-module (scm output-gnome))
92 (define this-module (current-module))
99 (gnome gw libgnomecanvas))
102 ;;; Lily output interface --- fix silly names and docme
105 The output interface has functions for
106 * formatting stencils, and
122 The Bare minimum interface for \score { \notes c } } should
125 INTERFACE-output-expression
130 and should intercept:
133 (define (dummy . foo) #f)
135 ;; minimal intercept list:
136 (define output-interface-intercept
152 (map (lambda (x) (module-define! this-module x dummy))
153 output-interface-intercept)
155 (define-public (gnome-output-expression expr port)
156 (display (dispatch expr) port))
158 (define (dispatch expr)
160 (let ((keyword (car expr)))
162 ((eq? keyword 'some-func) "")
163 ;;((eq? keyword 'placebox) (dispatch (cadddr expr)))
165 (if (module-defined? this-module keyword)
166 (apply (eval keyword this-module) (cdr expr))
169 (string-append "undefined: " (symbol->string keyword) "\n"))
174 (define (stderr string . rest)
175 (apply format (cons (current-error-port) (cons string rest)))
176 (force-output (current-error-port)))
178 (define (item-event item event . data)
179 (case (gdk-event:type event)
180 ((enter-notify) (gobject-set-property item 'fill-color "white"))
181 ((leave-notify) (gobject-set-property item 'fill-color "black"))
182 ((2button-press) (gobject-set-property item 'fill-color "red")))
185 (define (key-press-event item event . data)
186 (let ((keyval (gdk-event-key:keyval event))
187 (mods (gdk-event-key:modifiers event)))
188 (if (and (or (eq? keyval gdk:q)
190 (equal? mods '(control-mask modifier-mask)))
195 (define main-window #f)
196 (define canvas-root #f)
198 (define system-origin '(0 . 0))
200 (define canvas-width 400)
201 (define canvas-height
202 (inexact->exact (round (* 1.42 canvas-width))))
204 (define output-scale (* 2 2.83464566929134))
205 ;;(define output-scale 2.83464566929134)
206 ;;(define output-scale 1)
208 (define (char font i)
209 ;;(text font (make-string 1 (integer->char i))))
212 (define (placebox x y expr)
217 (* output-scale (+ (car system-origin) x))
218 (* output-scale (- (car system-origin) y)))
219 (affine-relative item output-scale 0 0 output-scale 0 0)
221 (gtype-instance-signal-connect item 'event item-event)
225 (define (round-filled-box breapth width depth height blot-diameter)
226 ;; FIXME: no rounded corners on rectangle
227 (make <gnome-canvas-rect>
229 #:x1 (- breapth) #:y1 (- depth) #:x2 width #:y2 height
230 #:fill-color "black" #:width-units blot-diameter))
232 (define (fontify font expr)
238 (define (header . rest)
239 (let* ((window (make <gtk-window> #:type 'toplevel))
240 (button (make <gtk-button> #:label "Exit"))
241 (canvas (make <gnome-canvas>))
242 (vbox (make <gtk-vbox> #:homogeneous #f))
243 (scrolled (make <gtk-scrolled-window>)))
247 (add scrolled canvas)
249 (set-size-request button canvas-width 20)
251 (set-child-packing vbox button #f #f 0 'end)
253 (gtype-instance-signal-connect button 'clicked
254 (lambda (b) (gtk-main-quit)))
257 (set-size-request canvas canvas-width canvas-height)
258 (set-scroll-region canvas 0 0 2000 4000)
260 (gtype-instance-signal-connect window 'key-press-event key-press-event)
263 (set! canvas-root (root canvas))
264 (set! main-window window)))
266 (define (text font string)
267 (make <gnome-canvas-text>
272 #:font "new century schoolbook, i bold 20"
276 (define (filledbox a b c d)
277 (round-filled-box a b c d 0.001))
279 ;; WTF is this in every backend?
280 (define (horizontal-line x1 x2 thickness)
281 ;;(let ((thickness 2))
282 (filledbox (- x1) (- x2 x1) (* .5 thickness) (* .5 thickness)))
284 (define (start-system origin . rest)
285 (set! system-origin origin))