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
18 ;;; Set XEDITOR and add
19 ;;; #(ly:set-point-and-click 'line-column)
20 ;;; to your .ly to get point-and-click
23 ;;; * pango+feta font (see archives gtk-i18n-list@gnome.org and
25 ;;; - wait for/help with pango 1.6
26 ;;; - convert feta to OpenType (CFF) or TrueType (fontforge?)
27 ;;; - hack feta20/feta20.pfa?: use latin1 encoding for gnome backend
29 ;;; mftrace --encoding=$(kpsewhich cork.enc) --autotrace --output-base=feta-cork-20 feta20.mf
30 ;;; hmm --output-base broken?
31 ;;; * implement missing stencil functions
32 ;;; * implement missing commands (next, prev? page)
33 ;;; * user-interface, keybindings
35 ;;; Note: this install information is volatile
36 ;;; you'll probably want to pull all from
37 ;;; from guile-gnome-devel@gnu.org--2004 soon
39 ;;; move this into workbook?
42 ## install gnome-devel
44 ## use guile-1.6 for g-wrap/guile-gnome
48 tla register-archive a.rottmann@gmx.at--2004-main http://people.debian.org/~rotty/arch/a.rottmann@gmx.at/2004-main || true
51 tla get a.rottmann@gmx.at--2004-main/g-wrap--tng gw-pristine
54 AUTOMAKE=automake-1.8 AUTOCONF=autoconf2.50 sh autogen.sh --noconfigure
57 ../configure --prefix=$HOME/usr/pkg/g-wrap
63 tla register-archive guile-gnome-devel@gnu.org--2004 http://people.debian.org/~rotty/arch/guile-gnome-devel@gnu.org/2004/ || true
65 tla guile-gnome-devel@gnu.org--2004/dists--dev guile-gnome
67 tla build-config -r configs/gnu.org/dev
70 AUTOMAKE=automake-1.8 AUTOCONF=autoconf2.50 sh autogen.sh --noconfigure
74 export GUILE_LOAD_PATH=$HOME/usr/pkg/g-wrap/share/guile/site:$GUILE_LOAD_PATH
75 export LD_LIBRARY_PATH=$HOME/usr/pkg/g-wrap/lib:$LD_LIBRARY_PATH
76 export PKG_CONFIG_PATH=$HOME/usr/pkg/g-wrap/lib/pkgconfig:$PKG_CONFIG_PATH
78 ../src/configure --prefix=$HOME/usr/pkg/guile-gnome
80 G_WRAP_MODULE_DIR=$HOME/usr/pkg/g-wrap/share/guile/site make install
82 (cd $HOME/usr/pkg/guile-gnome/share/guile/gnome && mv gtk/g[dt]k.scm gw)
84 export GUILE_LOAD_PATH=$HOME/usr/pkg/guile-gnome/share/guile:$GUILE_LOAD_PATH
85 export LD_LIBRARY_PATH=$HOME/usr/pkg/guile-gnome/lib:$LD_LIBRARY_PATH
86 guile -s ../src/gtk/examples/hello.scm
93 (debug-enable 'backtrace)
95 (define-module (scm output-gnome))
96 (define this-module (current-module))
104 (gnome gtk gdk-event)
105 (gnome gw libgnomecanvas))
108 ;;; Lily output interface --- fix silly names and docme
111 The output interface has functions for
112 * formatting stencils, and
128 The Bare minimum interface for \score { \notes c } } should
131 INTERFACE-output-expression
136 and should intercept:
139 (define (dummy . foo) #f)
141 ;; minimal intercept list:
142 (define output-interface-intercept
158 (map (lambda (x) (module-define! this-module x dummy))
159 output-interface-intercept)
161 (define-public (gnome-output-expression expr port)
162 (display (dispatch expr) port))
164 (define (dispatch expr)
166 (let ((keyword (car expr)))
168 ((eq? keyword 'some-func) "")
169 ;;((eq? keyword 'placebox) (dispatch (cadddr expr)))
171 (if (module-defined? this-module keyword)
172 (apply (eval keyword this-module) (cdr expr))
175 (string-append "undefined: " (symbol->string keyword) "\n"))
180 (define main-window #f)
181 (define main-canvas #f)
182 (define canvas-root #f)
184 (define system-origin '(0 . 0))
187 (define item-locations (make-hash-table 31))
190 (define canvas-width 400)
191 (define canvas-height
192 (inexact->exact (round (* 1.42 canvas-width))))
194 ;; TODO: use canvas scaling, use output-scale for paper/canvas dimensions?
195 (define output-scale (* 2 2.83464566929134))
196 ;;(define output-scale 2.83464566929134)
197 ;;(define output-scale 1)
200 (define (stderr string . rest)
201 (apply format (cons (current-error-port) (cons string rest)))
202 (force-output (current-error-port)))
206 (define (get-x-editor)
208 (set! x-editor (getenv "XEDITOR")))
214 (set! ifs (getenv "IFS")))
219 (define (spawn-editor location)
220 (let* ((line (car location))
221 (column (cadr location))
222 (file-name (caddr location))
223 (template (substring (get-x-editor) 0))
225 ;; Adhere to %l %c %f?
227 (regexp-substitute/global
228 #f "%l" (regexp-substitute/global
230 (regexp-substitute/global
231 #f "%f" template 'pre file-name 'post)
232 'pre (number->string column)
234 'pre (number->string line) 'post)))
236 (stderr "spawning: ~s\n" command)
237 (if (= (primitive-fork) 0)
238 (let ((command-list (string-split command #\ )));; (get-ifs))))
239 (apply execlp command-list)
242 (define location-callback spawn-editor)
244 (define (item-event item event . data)
245 (case (gdk-event:type event)
246 ((enter-notify) (gobject-set-property item 'fill-color "white"))
247 ((leave-notify) (gobject-set-property item 'fill-color "black"))
249 (let ((location (hashq-ref item-locations item #f)))
251 (location-callback location)
252 (stderr "no location\n"))))
253 ((2button-press) (gobject-set-property item 'fill-color "red")))
256 (define pixels-per-unit 1.0)
257 (define (key-press-event item event . data)
258 (let ((keyval (gdk-event-key:keyval event))
259 (mods (gdk-event-key:modifiers event)))
260 (cond ((and (or (eq? keyval gdk:q)
262 (equal? mods '(control-mask modifier-mask)))
264 ((and #t ;;(null? mods)
265 (eq? keyval gdk:plus))
266 (set! pixels-per-unit (* pixels-per-unit 2))
267 (set-pixels-per-unit main-canvas pixels-per-unit))
268 ((and #t ;; (null? mods)
269 (eq? keyval gdk:minus))
270 (set! pixels-per-unit (/ pixels-per-unit 2))
271 (set-pixels-per-unit main-canvas pixels-per-unit)))
274 (define (char font i)
275 ;;(text font (make-string 1 (integer->char i))))
279 (text font (make-string 1 (integer->char i)))
282 (define (placebox x y expr)
287 (* output-scale (+ (car system-origin) x))
288 (* output-scale (- (car system-origin) y)))
289 (affine-relative item output-scale 0 0 output-scale 0 0)
291 (gtype-instance-signal-connect item 'event item-event)
293 (hashq-set! item-locations item location))
297 (define (round-filled-box breapth width depth height blot-diameter)
298 ;; FIXME: no rounded corners on rectangle
299 (make <gnome-canvas-rect>
301 #:x1 (- breapth) #:y1 (- depth) #:x2 width #:y2 height
302 #:fill-color "black" #:width-units blot-diameter))
304 (define (fontify font expr)
310 (define (header . rest)
311 (let* ((window (make <gtk-window> #:type 'toplevel))
312 (button (make <gtk-button> #:label "Exit"))
313 (canvas (make <gnome-canvas>))
314 (vbox (make <gtk-vbox> #:homogeneous #f))
315 (scrolled (make <gtk-scrolled-window>)))
319 (add scrolled canvas)
321 (set-size-request button canvas-width 20)
323 (set-child-packing vbox button #f #f 0 'end)
325 (gtype-instance-signal-connect button 'clicked
326 (lambda (b) (gtk-main-quit)))
329 (set-size-request canvas canvas-width canvas-height)
330 (set-scroll-region canvas 0 0 2000 4000)
332 (gtype-instance-signal-connect window 'key-press-event key-press-event)
335 (set! canvas-root (root canvas))
336 (set! main-canvas canvas)
337 (set! main-window window)))
339 (define (pango-font-name font)
341 ((equal? (ly:font-name font) "GNU-LilyPond-feta-20")
342 "lilypond-feta, regular 32")
344 (ly:font-filename font))))
346 (define (text font string)
347 (stderr "font-name: ~S\n" (ly:font-name font))
348 ;; TODO s/filename/file-name/
349 (stderr "font-filename: ~S\n" (ly:font-filename font))
350 (make <gnome-canvas-text>
355 ;; #:font "new century schoolbook, i bold 20"
356 #:font (pango-font-name font)
360 (define (filledbox a b c d)
361 (round-filled-box a b c d 0.001))
363 ;; WTF is this in every backend?
364 (define (horizontal-line x1 x2 thickness)
365 ;;(let ((thickness 2))
366 (filledbox (- x1) (- x2 x1) (* .5 thickness) (* .5 thickness)))
368 (define (start-system origin . rest)
369 (set! system-origin origin))
371 ;; origin -- bad name
372 (define (define-origin file line col)
373 ;; ughr, why is this not passed as [part of] stencil object
374 (set! location (if (procedure? point-and-click)
375 ;; duh, only silly string append
376 ;; (point-and-click line col file)