1 ;;;; framework-gnome.scm --
3 ;;;; source file of the GNU LilyPond music typesetter
5 ;;;; (c) 2004--2005 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 basename book scopes fields )
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)
30 (define OUTPUT-SCALE (* 2.5 PIXELS-PER-UNIT))
31 (define-public output-scale OUTPUT-SCALE)
33 (define (debugf string . rest)
35 (apply stderr (cons string rest))))
37 (define-class <gnome-outputter> ()
38 (name #:init-value "untitled" #:init-keyword #:name #:accessor name)
41 (dragging #:init-value #f #:accessor dragging)
42 (drag-origin #:init-value #f #:accessor drag-origin)
43 (drag-location #:init-value #f #:accessor drag-location)
45 (page-stencils ;;#:init-value '#()
46 #:init-keyword #:page-stencils #:accessor page-stencils)
47 (window #:init-value (make <gtk-window> #:type 'toplevel) #:accessor window)
48 (scrolled #:init-value (make <gtk-scrolled-window>) #:accessor scrolled)
49 (canvas #:init-value #f #:accessor canvas)
50 (page-number #:init-value 0 #:accessor page-number)
51 (pixels-per-unit #:init-value PIXELS-PER-UNIT #:accessor pixels-per-unit)
52 (text-items #:init-value '() #:accessor text-items)
53 (grob #:init-value #f #:accessor grob)
54 (item-grobs #:init-value (make-hash-table 31) #:accessor item-grobs)
55 (window-width #:init-keyword #:window-width #:accessor window-width)
56 (window-height #:init-keyword #:window-height #:accessor window-height)
57 (canvas-width #:init-keyword #:canvas-width #:accessor canvas-width)
58 (canvas-height #:init-keyword #:canvas-height #:accessor canvas-height))
60 (define-method (initialize (go <gnome-outputter>))
61 (let* ((save (make <gtk-button> #:label "Save"))
62 (exit (make <gtk-button> #:label "Exit"))
63 (next (make <gtk-button> #:label "Next"))
64 (prev (make <gtk-button> #:label "Previous"))
65 (vbox (make <gtk-vbox> #:homogeneous #f))
66 (hbox (make <gtk-hbox> #:homogeneous #f)))
68 (set-size-request (window go) (window-width go) (window-height go))
70 (set-size-request (scrolled go) (window-width go) (- (window-height go)
76 (add (window go) vbox)
77 (add vbox (scrolled go))
79 (add (scrolled go) (canvas go))
83 (set-size-request hbox (window-width go) BUTTON-HEIGHT)
85 ;; hmm? These are broken when using <gnome-outputter>.
86 ;;(set-child-packing vbox hbox #f #f 0 'end)
87 ;;(set-child-packing hbox button #f #f 0 'end)
89 (set-size-request exit (quotient (window-width go) 2) BUTTON-HEIGHT)
98 (connect exit 'clicked (lambda (b) (gtk-main-quit)))
99 (connect save 'clicked (lambda (b) (save-tweaks go)))
100 (connect next 'clicked (lambda (b) (dump-page go (1+ (page-number go)))))
101 (connect prev 'clicked (lambda (b) (dump-page go (1- (page-number go)))))
102 (connect (window go) 'key-press-event
103 (lambda (w e) (key-press-event go w e)))
105 (show-all (window go))))
108 (define (gnome-main book name)
109 (let* ((paper (ly:paper-book-paper book))
110 (hsize (ly:output-def-lookup paper 'hsize))
111 (vsize (ly:output-def-lookup paper 'vsize))
112 (page-width (inexact->exact (ceiling (* OUTPUT-SCALE hsize))))
113 (page-height (inexact->exact (ceiling (* OUTPUT-SCALE vsize))))
114 ;;(page-width (inexact->exact (ceiling hsize)))
115 ;;(page-height (inexact->exact (ceiling vsize)))
117 (screen-width (gdk-screen-width))
118 (screen-height (gdk-screen-height))
119 (desktop-height (- screen-height PANELS-HEIGHT))
121 (go (make <gnome-outputter>
123 #:page-stencils (list->vector (ly:paper-book-pages book))
124 #:canvas-width page-width
125 #:canvas-height page-height
127 ;; huh, *2 -- pixels-per-unit?
128 (min (+ SCROLLBAR-SIZE (* page-width 2)) screen-width)
130 (min (+ BUTTON-HEIGHT SCROLLBAR-SIZE (* page-height 2))
133 ;; ugh. The GOOPS doc promises this is called automagically.
134 ;; possibly a goops 1.6.4 problem
141 (define (dump-page go number)
142 (if (or (not (page-stencils go))
144 (>= number (vector-length (page-stencils go))))
145 (stderr "No such page: ~S\n" (1+ number))
147 (let ((old-canvas (canvas go)))
149 (set! (page-number go) number)
151 ;; no destroy method for gnome-canvas-text yet.
152 ;;(map destroy (gtk-container-get-children main-canvas))
153 ;;(map destroy text-items)
155 (set! (text-items go) '())
156 (debugf "page-stencil ~S: ~S\n"
158 (vector-ref (page-stencils go) (page-number go)))
160 (ly:interpret-stencil-expression
161 ;; ;;(vector-ref (page-stencils go) (page-number go))
162 (ly:stencil-expr (vector-ref (page-stencils go) (page-number go)))
163 gnome-output-expression go '(0 . 0))
165 (if old-canvas (destroy old-canvas))
166 (add (scrolled go) (canvas go))
167 (show (canvas go)))))
172 (set! ifs (getenv "IFS")))
177 (define (spawn-editor location)
178 (let* ((file-name (car location))
179 (line (cadr location))
180 (column (caddr location))
181 (command (get-editor-command file line column)))
182 (debugf "spawning: ~s\n" command)
183 (if (= (primitive-fork) 0)
184 (let ((command-list (string-split command #\ )));; (get-ifs))))
185 (apply execlp command-list)
188 (define location-callback spawn-editor)
190 (define (get-location grob)
191 (and-let* ((p? (procedure? point-and-click))
193 (cause (ly:grob-property grob 'cause))
194 (music-origin (if (ly:music? cause)
195 (ly:music-property cause 'origin)
196 ;; How come #<unspecied> [and '()]
199 (if (ly:input-location? music-origin)
200 (ly:input-location music-origin)
204 (define-method (tweak (go <gnome-outputter>) item offset)
205 (let* ((grob (hashq-ref (item-grobs go) item #f))
206 (extra-offset (ly:grob-property grob 'extra-offset))
207 (origin (if (null? extra-offset) '(0 . 0)
208 (offset-flip-y extra-offset))))
211 (ly:grob-replace-tweak
212 grob (list tweak-grob-property
214 (offset-flip-y (offset-add origin offset)))))))
216 (define-method (save-tweaks (go <gnome-outputter>))
217 (let* ((dumper (ly:make-dumper))
218 (tweaks (ly:all-tweaks))
221 (lambda (tweak) (append
222 (list (ly:dumper-key-serial dumper (car tweak))
223 (list 'unquote (procedure-name (cadr tweak))))
227 (if (not (null? serialized-tweaks))
228 (let ((file (open-file (string-append (name go) ".twy") "w")))
230 ";;;tweaks. Generated file. Do not edit.
231 (ly:tweak-clear-registry)
232 (ly:tweak-define-keys `~S)
233 (ly:tweak-define-tweaks `~S)"
234 (ly:dumper-definitions dumper)
235 serialized-tweaks)))))
237 ;;;(define (item-event go grob item event)
238 (define (item-event go item event)
239 ;;(stderr "EVENT: ~S\n" event)
240 ;;(stderr "TYPE: ~S\n" (gdk-event:type event))
241 (case (gdk-event:type event)
242 ((enter-notify) (gobject-set-property item 'fill-color "red"))
243 ((leave-notify) (gobject-set-property item 'fill-color "black"))
244 ((motion-notify) (if (ly:grob? (dragging go))
245 (let ((x (gdk-event-motion:x event))
246 (y (gdk-event-motion:y event))
248 (r (drag-location go)))
249 ;;(stderr "MOVED AT: ~S ~S\n" x y)
250 (move item (/ (- x (car r)) s) (/ (- y (cdr r)) s))
251 (set! (drag-location go) (cons x y)))))
252 ((button-release) (if (ly:grob? (dragging go))
253 (let ((x (gdk-event-button:x event))
254 (y (gdk-event-button:y event))
257 (r (drag-location go)))
258 (move item (/ (- x (car r)) s) (/ (- y (cdr r)) s))
259 (set! (drag-location go) #f)
260 (set! (drag-origin go) #f)
261 (stderr "RELEASE at: ~S ~S\n" x y)
262 (set! (dragging go) #f)
263 (tweak go item (cons (/ (- x (car o)) s)
264 (/ (- y (cdr o)) s))))))
266 (let ((button (gdk-event-button:button event)))
269 (if (null? (gdk-event-button:modifiers event))
270 (let ((x (gdk-event-button:x event))
271 (y (gdk-event-button:y event)))
272 (stderr "CLICK at: ~S ~S\n" x y)
273 (set! (dragging go) (hashq-ref (item-grobs go) item #f))
274 (set! (drag-origin go) (cons x y))
275 (set! (drag-location go) (cons x y)))
277 (stderr "CLICK WITH MODIFIERS: ~S\n"
278 (gdk-event-button:modifiers event))
280 ;; some modifier, do jump to source
281 (and-let* ((grob (hashq-ref (item-grobs go) item #f))
282 (location (get-location grob)))
283 (location-callback location)))))
285 (and-let* ((grob (hashq-ref (item-grobs go) item #f)))
287 (let ((properties (ly:grob-properties grob))
288 (basic-properties (ly:grob-basic-properties grob))
289 (x (inexact->exact (gdk-event-button:x-root event)))
290 (y (inexact->exact (gdk-event-button:y-root event))))
292 (debugf "GROB: ~S\n" grob)
293 (debugf "PROPERTIES: ~S\n" properties)
294 (debugf "BASIC PROPERTIES: ~S\n" basic-properties)
296 ;; FIXME: dialog iso window?
297 ;; http://www.gtk.org/tutorial/sec-textentries.html
298 (let ((window (make <gtk-window>))
299 (vbox (make <gtk-vbox>))
300 (ok (make <gtk-button> #:label "Ok")))
303 (connect ok 'clicked (lambda (b) (destroy window)))
307 (let ((label (make <gtk-label>
308 ;;#:label (symbol->string (car x))))
309 #:label (format #f "~S" (car x))))
310 ;;(symbol->string (car x))))
311 (entry (make <gtk-entry>
312 #:text (format #f "~S" (cdr x))))
313 (hbox (make <gtk-hbox>)))
316 (set-size-request label 150 BUTTON-HEIGHT)
318 (append properties basic-properties))
322 (move window x y))))))))
324 ((2button-press) (gobject-set-property item 'fill-color "green"))
326 (let ((keyval (gdk-event-key:keyval event))
327 (mods (gdk-event-key:modifiers event))
328 (step (quotient (pixels-per-unit go) 2)))
329 (cond ((and (null? mods)
331 (tweak go item (cons 0 (- 0 step))))
333 (eq? keyval gdk:Down))
334 (tweak go item (cons 0 step)))
336 (eq? keyval gdk:Left))
337 (tweak go item (cons (- 0 step) 0)))
339 (eq? keyval gdk:Right))
340 (tweak go item (cons step 0)))))))
343 (define (scale-canvas go factor)
344 (set! (pixels-per-unit go) (* (pixels-per-unit go) factor))
345 (set-pixels-per-unit (canvas go) (pixels-per-unit go))
348 (let ((scale (gobject-get-property x 'scale))
349 (points (gobject-get-property x 'size-points)))
350 ;;(gobject-set-property x 'scale pixels-per-unit)
351 (gobject-set-property x 'size-points (* points factor))))
354 (define (key-press-event go item event)
355 (let ((keyval (gdk-event-key:keyval event))
356 (mods (gdk-event-key:modifiers event)))
357 (cond ((and (or (eq? keyval gdk:q)
359 (equal? mods '(control-mask modifier-mask)))
361 ((and (eq? keyval gdk:s)
362 (equal? mods '(control-mask modifier-mask)))
364 ((and #t ;;(null? mods)
365 (eq? keyval gdk:plus))
367 ((and #t ;; (null? mods)
368 (eq? keyval gdk:minus))
369 (scale-canvas go 0.5))
370 ((or (eq? keyval gdk:Page-Up)
371 (eq? keyval gdk:BackSpace))
372 (dump-page go (1- (page-number go))))
373 ((or (eq? keyval gdk:Page-Down)
374 (eq? keyval gdk:space))
375 (dump-page go (1+ (page-number go)))))
378 (define (new-canvas go)
379 (set! (canvas go) (make <gnome-canvas>))
380 (set-size-request (canvas go) (window-width go) (window-height go))
381 (set-scroll-region (canvas go) 0 0 (canvas-width go) (canvas-height go))
382 (set-pixels-per-unit (canvas go) (pixels-per-unit go))
383 (make <gnome-canvas-rect>
384 #:parent (root (canvas go))
385 #:x2 (canvas-width go) #:y2 (canvas-height go)
386 #:fill-color "white"))
388 (define output-gnome-module #f)
389 (define (get-output-gnome-module go)
390 (if (not output-gnome-module)
391 (let ((m (resolve-module '(scm output-gnome))))
392 (module-define! m 'canvas-root (lambda () (root (canvas go))))
393 (module-define! m 'output-scale output-scale)
394 (set! output-gnome-module m)))
397 (define-public (gnome-output-expression go expr)
398 (let* ((m (get-output-gnome-module go))
399 (result (eval expr m)))
401 ((ly:grob? result) (set! (grob go) result))
402 ((is-a? result <gnome-canvas-item>)
404 ;; AAARGH; grobs happen after stencils
405 ;; (connect result 'event (lambda (w e) (item-event go (grob go) w e)))
406 (connect result 'event (lambda (w e) (item-event go w e)))
408 (hashq-set! (item-grobs go) result (grob go)))
411 (if (is-a? result <gnome-canvas-text>)
412 (set! (text-items go) (cons result (text-items go))))))))