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>
7 ;;; HIP -- hack in progress
11 ;;; * guile-1.6.4 (NOT CVS)
12 ;;; * Rotty's g-wrap--tng, possibly Janneke's if you have libffi-3.4.
14 ;;; see also: guile-gtk-general@gnu.org
18 ;;; * If using GUILE CVS , then compile LilyPond with GUILE 1.6,
20 ;;; PATH=/usr/bin/:$PATH ./configure --enable-config=g16 ; make conf=g16
22 ;;; * Install gnome/gtk development stuff and g-wrap, guile-gnome
23 ;;; see buildscripts/guile-gnome.sh
25 ;;; * Use latin1 encoding for gnome backend, do
28 ./configure --prefix=$(pwd) --enable-config=g16
29 make -C mf conf=g16 clean
30 make -C mf conf=g16 ENCODING_FILE=$(kpsewhich cork.enc)
31 (cd mf-g16/out && mkfontdir)
32 xset +fp $(pwd)/mf-g16/out
35 ;;; * Setup environment
37 export GUILE_LOAD_PATH=$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
38 export LD_LIBRARY_PATH=$HOME/usr/pkg/g-wrap/lib:$HOME/usr/pkg/guile-gnome/lib
39 export XEDITOR='/usr/bin/emacsclient --no-wait +%l:%c %f'
41 ;;; * For GNOME point-and-click, add
42 ;;; #(ly:set-point-and-click 'line-column)
43 ;;; to your .ly; just click an object on the canvas.
47 lilypond-bin -fgnome input/simple-song.ly
52 ;;; * pango+feta font (see archives gtk-i18n-list@gnome.org and
54 ;;; - wait for/help with pango 1.6
55 ;;; - convert feta to OpenType (CFF) or TrueType (fontforge?)
56 ;;; - hack feta20/feta20.pfa?:
57 ;;; * font, canvas, scaling?
58 ;;; * implement missing stencil functions
59 ;;; * implement missing commands
60 ;;; * user-interface, keybindings
61 ;;; * cleanups: (too many) global vars
62 ;;; * papersize, outputscale from book
65 ;;; SCRIPT moved to buildscripts/guile-gnome.sh
69 (debug-enable 'backtrace)
71 (define-module (scm output-gnome))
73 (define this-module (current-module))
81 (gnome gtk gdk-event))
83 ;; the name of the module will change to canvas rsn
84 (if (resolve-module '(gnome gw canvas))
85 (use-modules (gnome gw canvas))
86 (use-modules (gnome gw libgnomecanvas)))
88 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
90 (define-public (gnome-output-expression expr port)
91 (display (dispatch expr) port))
93 (define (dispatch expr)
95 (let ((keyword (car expr)))
97 ((eq? keyword 'some-func) "")
98 ;;((eq? keyword 'placebox) (dispatch (cadddr expr)))
100 (if (module-defined? this-module keyword)
101 (apply (eval keyword this-module) (cdr expr))
104 (string-append "undefined: " (symbol->string keyword) "\n"))
108 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
109 ;;; Lily output interface --- fix silly names and docme
111 The output interface has functions for
112 * formatting stencils, and
129 The Bare minimum interface for \score { \notes c } } should
132 INTERFACE-output-expression
137 and should intercept:
140 (define (dummy . foo) #f)
142 ;; minimal intercept list:
143 (define output-interface-intercept
148 (map (lambda (x) (module-define! this-module x dummy))
149 output-interface-intercept)
151 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
155 (define main-window #f)
156 (define main-scrolled #f)
157 (define main-canvas #f)
158 (define page-number 0)
160 (define page-stencils #f)
161 (define output-canvas #f)
163 (define system-origin '(0 . 0))
166 (define item-locations (make-hash-table 31))
169 (define button-height 25)
170 (define canvas-width 2000)
171 (define canvas-height 4000)
173 (define window-width 400)
174 (define window-height
175 (inexact->exact (round (* 1.42 window-width))))
177 (define font-paper #f)
179 (define pixels-per-unit 2.0)
180 (define OUTPUT-SCALE 2.83464566929134)
181 (define output-scale (* OUTPUT-SCALE pixels-per-unit))
183 ;; helper functions -- sort this out
184 (define (stderr string . rest)
188 (apply format (cons (current-error-port) (cons string rest)))
189 (force-output (current-error-port)))))
193 ((< i #x80) (make-string 1 (integer->char i)))
194 ((< i #x800) (list->string
196 (list (+ #xc0 (quotient i #x40))
197 (+ #x80 (modulo i #x40))))))
199 (let ((x (quotient i #x1000))
200 (y (modulo i #x1000)))
204 (+ #x80 (quotient y #x40))
205 (+ #x80 (modulo y #x40)))))))
208 (define (custom-utf8 i)
211 (utf8 (+ #xee00 i))))
214 (define (draw-rectangle x1 y1 x2 y2 color width-units)
215 (make <gnome-canvas-rect>
216 #:parent (root main-canvas) #:x1 x1 #:y1 y1 #:x2 x2 #:y2 y2
217 #:fill-color color #:width-units width-units))
220 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
221 ;;;; stencil outputters
224 (define (char font i)
225 (text font (utf8 i)))
227 (define (placebox x y expr)
228 (stderr "item: ~S\n" expr)
231 ;; FIXME ugly hack to skip #unspecified ...
232 (if (and item (not (eq? item (if #f #f))))
235 (* output-scale (+ (car system-origin) x))
236 (* output-scale (- (car system-origin) y)))
237 (affine-relative item output-scale 0 0 output-scale 0 0)
239 (gtype-instance-signal-connect item 'event item-event)
241 (hashq-set! item-locations item location))
245 (define (round-filled-box breapth width depth height blot-diameter)
246 ;; FIXME: no rounded corners on rectangle...
248 (draw-rectangle (- breapth) depth width (- height) "black" blot-diameter))
250 (define (pango-font-name font)
252 ((equal? (ly:font-name font) "GNU-LilyPond-feta-20")
253 "lilypond-feta, regular 32")
255 (ly:font-name font))))
257 (define (pango-font-size font)
258 (let* ((designsize (ly:font-design-size font))
259 (magnification (* (ly:font-magnification font)))
260 ;;(ops (ly:paper-lookup paper 'outputscale))
261 ;;(ops (* pixels-per-unit OUTPUT-SCALE))
262 ;;(ops (* pixels-per-unit pixels-per-unit))
263 (ops (* (/ 12 20) (* pixels-per-unit pixels-per-unit)))
264 (scaling (* ops magnification designsize)))
267 (define (text font string)
268 (stderr "font-name: ~S\n" (ly:font-name font))
269 ;; TODO s/filename/file-name/
270 (stderr "font-filename: ~S\n" (ly:font-filename font))
272 (stderr "pango-font-name: ~S\n" (pango-font-name font))
273 (stderr "pango-font-size: ~S\n" (pango-font-size font))
277 (make <gnome-canvas-text>
278 #:parent (root main-canvas)
280 #:font (pango-font-name font)
281 #:size-points (pango-font-size font)
284 ;;apparently no effect :-(
294 (define (filledbox a b c d)
295 (round-filled-box a b c d 0.001))
297 ;; WTF is this in every backend?
298 (define (horizontal-line x1 x2 thickness)
299 ;;(let ((thickness 2))
300 (filledbox (- x1) (- x2 x1) (* .5 thickness) (* .5 thickness)))
302 ;; origin -- bad name
303 (define (define-origin file line col)
304 ;; ughr, why is this not passed as [part of] stencil object
305 (set! location (if (procedure? point-and-click)
306 ;; duh, only silly string append
307 ;; (point-and-click line col file)
313 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
314 ;;;; gnome stuff --- move to framework-gnome
315 (define (dump-page number)
316 (if (or (not page-stencils)
318 (>= number (vector-length page-stencils)))
319 (stderr "No such page: ~S\n" (1+ number))
321 (let* ((old-canvas main-canvas)
322 (canvas (new-canvas)))
323 (set! page-number number)
325 ;; no destroy method for gnome-canvas-text?
326 ;;(map destroy (gtk-container-get-children main-canvas))
327 ;;(map destroy text-items)
330 ;;(set! main-canvas canvas)
331 (set! text-items '())
332 (ly:outputter-dump-stencil output-canvas
333 (vector-ref page-stencils page-number))
335 (if old-canvas (destroy old-canvas))
336 (add main-scrolled canvas)
340 (define (get-x-editor)
342 (set! x-editor (getenv "XEDITOR")))
348 (set! ifs (getenv "IFS")))
353 (define (spawn-editor location)
354 (let* ((line (car location))
355 (column (cadr location))
356 (file-name (caddr location))
357 (template (substring (get-x-editor) 0))
359 ;; Adhere to %l %c %f?
361 (regexp-substitute/global
362 #f "%l" (regexp-substitute/global
364 (regexp-substitute/global
365 #f "%f" template 'pre file-name 'post)
366 'pre (number->string column)
368 'pre (number->string line) 'post)))
370 (stderr "spawning: ~s\n" command)
371 (if (= (primitive-fork) 0)
372 (let ((command-list (string-split command #\ )));; (get-ifs))))
373 (apply execlp command-list)
376 (define location-callback spawn-editor)
378 (define (item-event item event . data)
379 (case (gdk-event:type event)
380 ((enter-notify) (gobject-set-property item 'fill-color "red"))
381 ((leave-notify) (gobject-set-property item 'fill-color "black"))
383 (let ((location (hashq-ref item-locations item #f)))
385 (location-callback location)
386 (stderr "no location\n"))))
387 ((2button-press) (gobject-set-property item 'fill-color "red")))
390 ;; TODO: one list per-page
391 (define text-items '())
392 (define (scale-canvas factor)
393 (set! pixels-per-unit (* pixels-per-unit factor))
394 (set-pixels-per-unit main-canvas pixels-per-unit)
397 (let ((scale (gobject-get-property x 'scale))
398 (points (gobject-get-property x 'size-points)))
399 ;;(gobject-set-property x 'scale pixels-per-unit)
400 (gobject-set-property x 'size-points (* points factor))))
403 (define (key-press-event item event . data)
404 (let ((keyval (gdk-event-key:keyval event))
405 (mods (gdk-event-key:modifiers event)))
406 (cond ((and (or (eq? keyval gdk:q)
408 (equal? mods '(control-mask modifier-mask)))
410 ((and #t ;;(null? mods)
411 (eq? keyval gdk:plus))
413 ((and #t ;; (null? mods)
414 (eq? keyval gdk:minus))
416 ((or (eq? keyval gdk:Page-Up)
417 (eq? keyval gdk:BackSpace))
418 (dump-page (1- page-number)))
419 ((or (eq? keyval gdk:Page-Down)
420 (eq? keyval gdk:space))
421 (dump-page (1+ page-number))))
424 (define (papersize window paper)
425 (let* ((hsize (ly:output-def-lookup paper 'hsize))
426 (vsize (ly:output-def-lookup paper 'vsize))
427 (width (inexact->exact (ceiling (* output-scale hsize))))
428 (height (inexact->exact (ceiling (* output-scale vsize))))
429 (max-width (gdk-screen-width))
430 (max-height (gdk-screen-height))
434 (set! max-height (- max-height 80))
437 ;;(set! OUTPUT-SCALE (ly:bookpaper-outputscale paper))
438 ;;(set! output-scale (* OUTPUT-SCALE pixels-per-unit))
442 (set! window-width (min (+ scrollbar-size (* width 2)) max-width))
443 (set! window-height (min (+ button-height scrollbar-size (* height 2))
446 (set! canvas-width width)
447 (set! canvas-height height)))
451 (let* ((canvas (make <gnome-canvas>))
452 (root (root canvas)))
454 (set-size-request canvas window-width window-height)
455 (set-scroll-region canvas 0 0 canvas-width canvas-height)
457 (set-pixels-per-unit canvas pixels-per-unit)
459 (set! main-canvas canvas)
460 (draw-rectangle 0 0 canvas-width canvas-height "white" 0)
464 (define (main outputter bookpaper pages)
465 (let* ((window (make <gtk-window> #:type 'toplevel))
466 (button (make <gtk-button> #:label "Exit"))
467 (next (make <gtk-button> #:label "Next"))
468 (prev (make <gtk-button> #:label "Previous"))
469 (vbox (make <gtk-vbox> #:homogeneous #f))
470 (hbox (make <gtk-hbox> #:homogeneous #f))
471 (scrolled (make <gtk-scrolled-window>))
472 (canvas (new-canvas)))
474 (papersize window bookpaper)
475 (set-size-request window window-width window-height)
479 (add scrolled canvas)
482 (set-size-request hbox window-width button-height)
483 (set-child-packing vbox hbox #f #f 0 'end)
485 (set-child-packing hbox button #f #f 0 'end)
486 (set-size-request button (quotient window-width 2) button-height)
492 (gtype-instance-signal-connect button 'clicked
493 (lambda (b) (gtk-main-quit)))
494 (gtype-instance-signal-connect next 'clicked
495 (lambda (b) (dump-page (1+ page-number))))
496 (gtype-instance-signal-connect prev 'clicked
497 (lambda (b) (dump-page (1- page-number))))
499 (gtype-instance-signal-connect window 'key-press-event key-press-event)
502 ;; HMMM. Make some class for these vars?
503 (set! main-window window)
504 (set! main-scrolled scrolled)
505 (set! output-canvas outputter)
506 (set! page-stencils pages)