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)
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 (page-stencils ;;#:init-value '#()
42 #:init-keyword #:page-stencils #:accessor page-stencils)
43 (window #:init-value (make <gtk-window> #:type 'toplevel) #:accessor window)
44 (scrolled #:init-value (make <gtk-scrolled-window>) #:accessor scrolled)
45 (canvas #:init-value #f #:accessor canvas)
46 (page-number #:init-value 0 #:accessor page-number)
47 (pixels-per-unit #:init-value PIXELS-PER-UNIT #:accessor pixels-per-unit)
48 (text-items #:init-value '() #:accessor text-items)
49 (grob #:init-value #f #:accessor grob)
50 (item-grobs #:init-value (make-hash-table 31) #:accessor item-grobs)
51 (window-width #:init-keyword #:window-width #:accessor window-width)
52 (window-height #:init-keyword #:window-height #:accessor window-height)
53 (canvas-width #:init-keyword #:canvas-width #:accessor canvas-width)
54 (canvas-height #:init-keyword #:canvas-height #:accessor canvas-height))
56 (define-method (initialize (go <gnome-outputter>))
57 (let* ((button (make <gtk-button> #:label "Exit"))
58 (next (make <gtk-button> #:label "Next"))
59 (prev (make <gtk-button> #:label "Previous"))
60 (vbox (make <gtk-vbox> #:homogeneous #f))
61 (hbox (make <gtk-hbox> #:homogeneous #f)))
63 (set-size-request (window go) (window-width go) (window-height go))
65 (set-size-request (scrolled go) (window-width go) (- (window-height go)
71 (add (window go) vbox)
72 (add vbox (scrolled go))
74 (add (scrolled go) (canvas go))
78 (set-size-request hbox (window-width go) BUTTON-HEIGHT)
80 ;; hmm? These are broken when using <gnome-outputter>.
81 ;;(set-child-packing vbox hbox #f #f 0 'end)
82 ;;(set-child-packing hbox button #f #f 0 'end)
84 (set-size-request button (quotient (window-width go) 2) BUTTON-HEIGHT)
92 (connect button 'clicked (lambda (b) (gtk-main-quit)))
93 (connect next 'clicked (lambda (b) (dump-page go (1+ (page-number go)))))
94 (connect prev 'clicked (lambda (b) (dump-page go (1- (page-number go)))))
95 (connect (window go) 'key-press-event
96 (lambda (w e) (key-press-event go w e)))
98 (show-all (window go))))
101 (define (gnome-main book)
102 (let* ((book-paper (ly:paper-book-book-paper book))
103 (hsize (ly:output-def-lookup book-paper 'hsize))
104 (vsize (ly:output-def-lookup book-paper 'vsize))
105 (page-width (inexact->exact (ceiling (* OUTPUT-SCALE hsize))))
106 (page-height (inexact->exact (ceiling (* OUTPUT-SCALE vsize))))
107 ;;(page-width (inexact->exact (ceiling hsize)))
108 ;;(page-height (inexact->exact (ceiling vsize)))
110 (screen-width (gdk-screen-width))
111 (screen-height (gdk-screen-height))
112 (desktop-height (- screen-height PANELS-HEIGHT))
114 (go (make <gnome-outputter>
115 #:page-stencils (list->vector (ly:paper-book-pages book))
116 #:canvas-width page-width
117 #:canvas-height page-height
119 ;; huh, *2 -- pixels-per-unit?
120 (min (+ SCROLLBAR-SIZE (* page-width 2)) screen-width)
122 (min (+ BUTTON-HEIGHT SCROLLBAR-SIZE (* page-height 2))
125 ;; ugh. The GOOPS doc promises this is called automagically.
126 ;; possibly a goops 1.6.4 problem
129 (map ly:pango-add-afm-decoder
133 "lilypond-parmesan"))
139 (define (dump-page go number)
140 (if (or (not (page-stencils go))
142 (>= number (vector-length (page-stencils go))))
143 (stderr "No such page: ~S\n" (1+ number))
145 (let ((old-canvas (canvas go)))
147 (set! (page-number go) number)
149 ;; no destroy method for gnome-canvas-text yet.
150 ;;(map destroy (gtk-container-get-children main-canvas))
151 ;;(map destroy text-items)
153 (set! (text-items go) '())
154 (debugf "page-stencil ~S: ~S\n"
156 (vector-ref (page-stencils go) (page-number go)))
158 (ly:interpret-stencil-expression
159 ;; ;;(vector-ref (page-stencils go) (page-number go))
160 (ly:stencil-expr (vector-ref (page-stencils go) (page-number go)))
161 gnome-output-expression go '(0 . 0))
163 (if old-canvas (destroy old-canvas))
164 (add (scrolled go) (canvas go))
165 (show (canvas go)))))
168 (define (get-x-editor)
170 (set! x-editor (getenv "XEDITOR")))
176 (set! ifs (getenv "IFS")))
181 (define (spawn-editor location)
182 (let* ((file-name (car location))
183 (line (cadr location))
184 (column (caddr location))
185 (template (substring (get-x-editor) 0))
187 ;; Adhere to %l %c %f?
189 (regexp-substitute/global
190 #f "%l" (regexp-substitute/global
192 (regexp-substitute/global
193 #f "%f" template 'pre file-name 'post)
194 'pre (number->string column)
196 'pre (number->string line) 'post)))
198 (debugf "spawning: ~s\n" command)
199 (if (= (primitive-fork) 0)
200 (let ((command-list (string-split command #\ )));; (get-ifs))))
201 (apply execlp command-list)
204 (define location-callback spawn-editor)
206 (define (get-location grob)
207 (and-let* ((p? (procedure? point-and-click))
209 (cause (ly:grob-property grob 'cause))
210 (music-origin (if (ly:music? cause)
211 (ly:music-property cause 'origin)
212 ;; How come #<unspecied> [and '()]
215 (if (ly:input-location? music-origin)
216 (ly:input-location music-origin)
219 ;;;(define (item-event go grob item event)
220 (define (item-event go item event)
221 (case (gdk-event:type event)
222 ((enter-notify) (gobject-set-property item 'fill-color "red"))
223 ((leave-notify) (gobject-set-property item 'fill-color "black"))
225 (let ((button (gdk-event-button:button event)))
228 (and-let* ((grob (hashq-ref (item-grobs go) item #f))
229 (location (get-location grob)))
230 (location-callback location)))
234 ((grob (hashq-ref (item-grobs go) item #f)))
236 (let ((properties (ly:grob-properties grob))
237 (basic-properties (ly:grob-basic-properties grob))
238 (x (inexact->exact (gdk-event-button:x-root event)))
239 (y (inexact->exact (gdk-event-button:y-root event))))
241 (debugf "GROB: ~S\n" grob)
242 (debugf "PROPERTIES: ~S\n" properties)
243 (debugf "BASIC PROPERTIES: ~S\n" basic-properties)
245 (let ((window (make <gtk-window>))
246 (vbox (make <gtk-vbox>))
247 (button (make <gtk-button> #:label "Ok")))
250 (connect button 'clicked (lambda (b) (destroy window)))
254 (let ((button (make <gtk-button>
258 (symbol->string (car x))
260 (format #f "~S" (cdr x))))))
261 (set-size-request button 150 BUTTON-HEIGHT)
266 ;; FIXME: how to do window placement?
270 ;; - shows actual movement:
274 ((2button-press) (gobject-set-property item 'fill-color "green")))
277 (define (scale-canvas go factor)
278 (set! (pixels-per-unit go) (* (pixels-per-unit go) factor))
279 (set-pixels-per-unit (canvas go) (pixels-per-unit go))
282 (let ((scale (gobject-get-property x 'scale))
283 (points (gobject-get-property x 'size-points)))
284 ;;(gobject-set-property x 'scale pixels-per-unit)
285 (gobject-set-property x 'size-points (* points factor))))
288 (define (key-press-event go item event)
289 (let ((keyval (gdk-event-key:keyval event))
290 (mods (gdk-event-key:modifiers event)))
291 (cond ((and (or (eq? keyval gdk:q)
293 (equal? mods '(control-mask modifier-mask)))
295 ((and #t ;;(null? mods)
296 (eq? keyval gdk:plus))
298 ((and #t ;; (null? mods)
299 (eq? keyval gdk:minus))
300 (scale-canvas go 0.5))
301 ((or (eq? keyval gdk:Page-Up)
302 (eq? keyval gdk:BackSpace))
303 (dump-page go (1- (page-number go))))
304 ((or (eq? keyval gdk:Page-Down)
305 (eq? keyval gdk:space))
306 (dump-page go (1+ (page-number go)))))
309 (define (new-canvas go)
310 (set! (canvas go) (make <gnome-canvas>))
311 (set-size-request (canvas go) (window-width go) (window-height go))
312 (set-scroll-region (canvas go) 0 0 (canvas-width go) (canvas-height go))
313 (set-pixels-per-unit (canvas go) (pixels-per-unit go))
314 (make <gnome-canvas-rect>
315 #:parent (root (canvas go))
316 #:x2 (canvas-width go) #:y2 (canvas-height go)
317 #:fill-color "white"))
319 (define output-gnome-module #f)
320 (define (get-output-gnome-module go)
321 (if (not output-gnome-module)
322 (let ((m (resolve-module '(scm output-gnome))))
323 (module-define! m 'canvas-root (lambda () (root (canvas go))))
324 (module-define! m 'output-scale output-scale)
325 (set! output-gnome-module m)))
328 (define-public (gnome-output-expression go expr)
329 (let* ((m (get-output-gnome-module go))
330 (result (eval expr m)))
332 ((ly:grob? result) (set! (grob go) result))
333 ((is-a? result <gnome-canvas-item>)
335 ;; AAARGH; grobs happen after stencils
336 ;; (connect result 'event (lambda (w e) (item-event go (grob go) w e)))
337 (connect result 'event (lambda (w e) (item-event go w e)))
339 (hashq-set! (item-grobs go) result (grob go)))
342 (if (is-a? result <gnome-canvas-text>)
343 (set! (text-items go) (cons result (text-items go))))))))