1 ;;;; framework-gnome.scm --
3 ;;;; source file of the GNU LilyPond music typesetter
5 ;;;; (c) 2004 Jan Nieuwenhuizen <janneke@gnu.org>
7 ;;;; See output-gnome.scm for usage information.
10 (define-module (scm framework-gnome))
12 (use-modules (guile) (oop goops) (lily))
21 (define-public (output-framework outputter book scopes fields basename)
22 (gnome-main book basename))
24 (define SCROLLBAR-SIZE 20)
25 (define BUTTON-HEIGHT 25)
26 (define PANELS-HEIGHT 80)
28 (define PIXELS-PER-UNIT 2)
29 (define OUTPUT-SCALE (* 2.5 PIXELS-PER-UNIT))
30 (define-public output-scale OUTPUT-SCALE)
32 (define (stderr string . rest)
33 (apply format (cons (current-error-port) (cons string rest)))
34 (force-output (current-error-port)))
36 (define (debugf string . rest)
38 (stderr (cons string rest))))
40 (define-class <gnome-outputter> ()
41 (name #:init-value "untitled" #:init-keyword #:name #:accessor name)
42 (page-stencils ;;#:init-value '#()
43 #:init-keyword #:page-stencils #:accessor page-stencils)
44 (window #:init-value (make <gtk-window> #:type 'toplevel) #:accessor window)
45 (scrolled #:init-value (make <gtk-scrolled-window>) #:accessor scrolled)
46 (canvas #:init-value #f #:accessor canvas)
47 (page-number #:init-value 0 #:accessor page-number)
48 (pixels-per-unit #:init-value PIXELS-PER-UNIT #:accessor pixels-per-unit)
49 (text-items #:init-value '() #:accessor text-items)
50 (grob #:init-value #f #:accessor grob)
51 (item-grobs #:init-value (make-hash-table 31) #:accessor item-grobs)
52 (grob-tweaks #:init-value (make-hash-table 31) #:accessor grob-tweaks)
53 (window-width #:init-keyword #:window-width #:accessor window-width)
54 (window-height #:init-keyword #:window-height #:accessor window-height)
55 (canvas-width #:init-keyword #:canvas-width #:accessor canvas-width)
56 (canvas-height #:init-keyword #:canvas-height #:accessor canvas-height))
58 (define-method (initialize (go <gnome-outputter>))
59 (let* ((save (make <gtk-button> #:label "Save"))
60 (exit (make <gtk-button> #:label "Exit"))
61 (next (make <gtk-button> #:label "Next"))
62 (prev (make <gtk-button> #:label "Previous"))
63 (vbox (make <gtk-vbox> #:homogeneous #f))
64 (hbox (make <gtk-hbox> #:homogeneous #f)))
66 (set-size-request (window go) (window-width go) (window-height go))
68 (set-size-request (scrolled go) (window-width go) (- (window-height go)
74 (add (window go) vbox)
75 (add vbox (scrolled go))
77 (add (scrolled go) (canvas go))
81 (set-size-request hbox (window-width go) BUTTON-HEIGHT)
83 ;; hmm? These are broken when using <gnome-outputter>.
84 ;;(set-child-packing vbox hbox #f #f 0 'end)
85 ;;(set-child-packing hbox button #f #f 0 'end)
87 (set-size-request exit (quotient (window-width go) 2) BUTTON-HEIGHT)
96 (connect exit 'clicked (lambda (b) (gtk-main-quit)))
97 (connect save 'clicked (lambda (b) (save-tweaks go)))
98 (connect next 'clicked (lambda (b) (dump-page go (1+ (page-number go)))))
99 (connect prev 'clicked (lambda (b) (dump-page go (1- (page-number go)))))
100 (connect (window go) 'key-press-event
101 (lambda (w e) (key-press-event go w e)))
103 (show-all (window go))))
106 (define (gnome-main book name)
107 (let* ((paper (ly:paper-book-paper book))
108 (hsize (ly:output-def-lookup paper 'hsize))
109 (vsize (ly:output-def-lookup paper 'vsize))
110 (page-width (inexact->exact (ceiling (* OUTPUT-SCALE hsize))))
111 (page-height (inexact->exact (ceiling (* OUTPUT-SCALE vsize))))
112 ;;(page-width (inexact->exact (ceiling hsize)))
113 ;;(page-height (inexact->exact (ceiling vsize)))
115 (screen-width (gdk-screen-width))
116 (screen-height (gdk-screen-height))
117 (desktop-height (- screen-height PANELS-HEIGHT))
119 (go (make <gnome-outputter>
121 #:page-stencils (list->vector (ly:paper-book-pages book))
122 #:canvas-width page-width
123 #:canvas-height page-height
125 ;; huh, *2 -- pixels-per-unit?
126 (min (+ SCROLLBAR-SIZE (* page-width 2)) screen-width)
128 (min (+ BUTTON-HEIGHT SCROLLBAR-SIZE (* page-height 2))
131 ;; ugh. The GOOPS doc promises this is called automagically.
132 ;; possibly a goops 1.6.4 problem
135 (map ly:pango-add-afm-decoder
139 "lilypond-parmesan"))
145 (define (dump-page go number)
146 (if (or (not (page-stencils go))
148 (>= number (vector-length (page-stencils go))))
149 (stderr "No such page: ~S\n" (1+ number))
151 (let ((old-canvas (canvas go)))
153 (set! (page-number go) number)
155 ;; no destroy method for gnome-canvas-text yet.
156 ;;(map destroy (gtk-container-get-children main-canvas))
157 ;;(map destroy text-items)
159 (set! (text-items go) '())
160 (debugf "page-stencil ~S: ~S\n"
162 (vector-ref (page-stencils go) (page-number go)))
164 (ly:interpret-stencil-expression
165 ;; ;;(vector-ref (page-stencils go) (page-number go))
166 (ly:stencil-expr (vector-ref (page-stencils go) (page-number go)))
167 gnome-output-expression go '(0 . 0))
169 (if old-canvas (destroy old-canvas))
170 (add (scrolled go) (canvas go))
171 (show (canvas go)))))
174 (define (get-x-editor)
176 (set! x-editor (getenv "XEDITOR")))
182 (set! ifs (getenv "IFS")))
187 (define (spawn-editor location)
188 (let* ((file-name (car location))
189 (line (cadr location))
190 (column (caddr location))
191 (template (substring (get-x-editor) 0))
193 ;; Adhere to %l %c %f?
195 (regexp-substitute/global
196 #f "%l" (regexp-substitute/global
198 (regexp-substitute/global
199 #f "%f" template 'pre file-name 'post)
200 'pre (number->string column)
202 'pre (number->string line) 'post)))
204 (debugf "spawning: ~s\n" command)
205 (if (= (primitive-fork) 0)
206 (let ((command-list (string-split command #\ )));; (get-ifs))))
207 (apply execlp command-list)
210 (define location-callback spawn-editor)
212 (define (get-location grob)
213 (and-let* ((p? (procedure? point-and-click))
215 (cause (ly:grob-property grob 'cause))
216 (music-origin (if (ly:music? cause)
217 (ly:music-property cause 'origin)
218 ;; How come #<unspecied> [and '()]
221 (if (ly:input-location? music-origin)
222 (ly:input-location music-origin)
225 (define-method (tweak (go <gnome-outputter>) item offset)
226 (let* ((grob (hashq-ref (item-grobs go) item #f))
227 (extra-offset (ly:grob-property grob 'extra-offset))
228 (origin (hashq-ref (grob-tweaks go) grob
229 (cons (car extra-offset)
230 (- 0 (cdr extra-offset))))))
232 (hashq-set! (grob-tweaks go) grob (cons (+ (car origin) (car offset))
233 (+ (cdr origin) (cdr offset)))))
234 (move item (car offset) (cdr offset))))
236 (define-method (save-tweaks (go <gnome-outputter>))
237 (let ;;((file (current-error-port)))
238 ((file (open-file (string-append (name go) ".ly.t") "w")))
239 (format file ";;; TWEAKS \n")
240 (format file ";;(define grob-id-tweak-alist \n'(\n")
242 (lambda (key value seed)
243 (format file "(~S extra-offset ~S)\n"
244 (if (ly:grob? key) (ly:grob-id key) ";;unidentified grob")
247 (format file ")\n;;)\n")))
249 ;;;(define (item-event go grob item event)
250 (define (item-event go item event)
251 (case (gdk-event:type event)
252 ((enter-notify) (gobject-set-property item 'fill-color "red"))
253 ((leave-notify) (gobject-set-property item 'fill-color "black"))
255 (let ((button (gdk-event-button:button event)))
258 (and-let* ((grob (hashq-ref (item-grobs go) item #f))
259 (location (get-location grob)))
260 (location-callback location)))
264 ((grob (hashq-ref (item-grobs go) item #f)))
266 (let ((properties (ly:grob-properties grob))
267 (basic-properties (ly:grob-basic-properties grob))
268 (id (ly:grob-id grob))
269 (x (inexact->exact (gdk-event-button:x-root event)))
270 (y (inexact->exact (gdk-event-button:y-root event))))
272 (debugf "GROB: ~S\n" grob)
273 (debugf "PROPERTIES: ~S\n" properties)
274 (debugf "BASIC PROPERTIES: ~S\n" basic-properties)
276 (let ((window (make <gtk-window>))
277 (vbox (make <gtk-vbox>))
278 (button (make <gtk-button> #:label "Ok")))
281 (connect button 'clicked (lambda (b) (destroy window)))
285 (let ((button (make <gtk-button>
289 (symbol->string (car x))
291 (format #f "~S" (cdr x))))))
292 (set-size-request button 150 BUTTON-HEIGHT)
294 (cons (list id) properties))
297 ;; FIXME: how to do window placement?
301 ;; - shows actual movement:
305 ((2button-press) (gobject-set-property item 'fill-color "green"))
307 (let ((keyval (gdk-event-key:keyval event))
308 (mods (gdk-event-key:modifiers event))
309 (step (quotient (pixels-per-unit go) 2)))
310 (cond ((and (null? mods)
312 (tweak go item (cons 0 (- 0 step))))
314 (eq? keyval gdk:Down))
315 (tweak go item (cons 0 step)))
317 (eq? keyval gdk:Left))
318 (tweak go item (cons (- 0 step) 0)))
320 (eq? keyval gdk:Right))
321 (tweak go item (cons step 0)))))))
324 (define (scale-canvas go factor)
325 (set! (pixels-per-unit go) (* (pixels-per-unit go) factor))
326 (set-pixels-per-unit (canvas go) (pixels-per-unit go))
329 (let ((scale (gobject-get-property x 'scale))
330 (points (gobject-get-property x 'size-points)))
331 ;;(gobject-set-property x 'scale pixels-per-unit)
332 (gobject-set-property x 'size-points (* points factor))))
335 (define (key-press-event go item event)
336 (let ((keyval (gdk-event-key:keyval event))
337 (mods (gdk-event-key:modifiers event)))
338 (cond ((and (or (eq? keyval gdk:q)
340 (equal? mods '(control-mask modifier-mask)))
342 ((and #t ;;(null? mods)
343 (eq? keyval gdk:plus))
345 ((and #t ;; (null? mods)
346 (eq? keyval gdk:minus))
347 (scale-canvas go 0.5))
348 ((or (eq? keyval gdk:Page-Up)
349 (eq? keyval gdk:BackSpace))
350 (dump-page go (1- (page-number go))))
351 ((or (eq? keyval gdk:Page-Down)
352 (eq? keyval gdk:space))
353 (dump-page go (1+ (page-number go)))))
356 (define (new-canvas go)
357 (set! (canvas go) (make <gnome-canvas>))
358 (set-size-request (canvas go) (window-width go) (window-height go))
359 (set-scroll-region (canvas go) 0 0 (canvas-width go) (canvas-height go))
360 (set-pixels-per-unit (canvas go) (pixels-per-unit go))
361 (make <gnome-canvas-rect>
362 #:parent (root (canvas go))
363 #:x2 (canvas-width go) #:y2 (canvas-height go)
364 #:fill-color "white"))
366 (define output-gnome-module #f)
367 (define (get-output-gnome-module go)
368 (if (not output-gnome-module)
369 (let ((m (resolve-module '(scm output-gnome))))
370 (module-define! m 'canvas-root (lambda () (root (canvas go))))
371 (module-define! m 'output-scale output-scale)
372 (set! output-gnome-module m)))
375 (define-public (gnome-output-expression go expr)
376 (let* ((m (get-output-gnome-module go))
377 (result (eval expr m)))
379 ((ly:grob? result) (set! (grob go) result))
380 ((is-a? result <gnome-canvas-item>)
382 ;; AAARGH; grobs happen after stencils
383 ;; (connect result 'event (lambda (w e) (item-event go (grob go) w e)))
384 (connect result 'event (lambda (w e) (item-event go w e)))
386 (hashq-set! (item-grobs go) result (grob go)))
389 (if (is-a? result <gnome-canvas-text>)
390 (set! (text-items go) (cons result (text-items go))))))))