-;;;; framework-gnome.scm --
-;;;;
-;;;; source file of the GNU LilyPond music typesetter
-;;;;
-;;;; (c) 2004 Jan Nieuwenhuizen <janneke@gnu.org>
-
-;;;; See output-gnome.scm for usage information.
-
-
-(define-module (scm framework-gnome))
-
-(use-modules (guile) (oop goops) (lily))
-
-(use-modules
- (srfi srfi-2)
- (ice-9 regex)
- (gnome gtk)
- (gnome gtk gdk-event)
- (gnome gw canvas))
-
-(define-public (output-framework outputter book scopes fields basename)
- (gnome-main book))
-
-(define SCROLLBAR-SIZE 20)
-(define BUTTON-HEIGHT 25)
-(define PANELS-HEIGHT 80)
-
-(define PIXELS-PER-UNIT 2)
-(define OUTPUT-SCALE (* 2.5 PIXELS-PER-UNIT))
-(define-public output-scale OUTPUT-SCALE)
-
-(define (stderr string . rest)
- (apply format (cons (current-error-port) (cons string rest)))
- (force-output (current-error-port)))
-
-(define (debugf string . rest)
- (if #f
- (stderr (cons string rest))))
-
-(define-class <gnome-outputter> ()
- (page-stencils ;;#:init-value '#()
- #:init-keyword #:page-stencils #:accessor page-stencils)
- (window #:init-value (make <gtk-window> #:type 'toplevel) #:accessor window)
- (scrolled #:init-value (make <gtk-scrolled-window>) #:accessor scrolled)
- (canvas #:init-value #f #:accessor canvas)
- (page-number #:init-value 0 #:accessor page-number)
- (pixels-per-unit #:init-value PIXELS-PER-UNIT #:accessor pixels-per-unit)
- (text-items #:init-value '() #:accessor text-items)
- (grob #:init-value #f #:accessor grob)
- (item-grobs #:init-value (make-hash-table 31) #:accessor item-grobs)
- (window-width #:init-keyword #:window-width #:accessor window-width)
- (window-height #:init-keyword #:window-height #:accessor window-height)
- (canvas-width #:init-keyword #:canvas-width #:accessor canvas-width)
- (canvas-height #:init-keyword #:canvas-height #:accessor canvas-height))
-
-(define-method (initialize (go <gnome-outputter>))
- (let* ((button (make <gtk-button> #:label "Exit"))
- (next (make <gtk-button> #:label "Next"))
- (prev (make <gtk-button> #:label "Previous"))
- (vbox (make <gtk-vbox> #:homogeneous #f))
- (hbox (make <gtk-hbox> #:homogeneous #f)))
-
- (set-size-request (window go) (window-width go) (window-height go))
-
- (set-size-request (scrolled go) (window-width go) (- (window-height go)
- BUTTON-HEIGHT
- SCROLLBAR-SIZE))
-
- (new-canvas go)
-
- (add (window go) vbox)
- (add vbox (scrolled go))
-
- (add (scrolled go) (canvas go))
-
- ;; buttons
- (add vbox hbox)
- (set-size-request hbox (window-width go) BUTTON-HEIGHT)
-
- ;; hmm? These are broken when using <gnome-outputter>.
- ;;(set-child-packing vbox hbox #f #f 0 'end)
- ;;(set-child-packing hbox button #f #f 0 'end)
-
- (set-size-request button (quotient (window-width go) 2) BUTTON-HEIGHT)
-
-
- (add hbox next)
- (add hbox prev)
- (add hbox button)
-
- ;; signals
- (connect button 'clicked (lambda (b) (gtk-main-quit)))
- (connect next 'clicked (lambda (b) (dump-page go (1+ (page-number go)))))
- (connect prev 'clicked (lambda (b) (dump-page go (1- (page-number go)))))
- (connect (window go) 'key-press-event
- (lambda (w e) (key-press-event go w e)))
-
- (show-all (window go))))
-
-
-(define (gnome-main book)
- (let* ((book-paper (ly:paper-book-book-paper book))
- (hsize (ly:output-def-lookup book-paper 'hsize))
- (vsize (ly:output-def-lookup book-paper 'vsize))
- (page-width (inexact->exact (ceiling (* OUTPUT-SCALE hsize))))
- (page-height (inexact->exact (ceiling (* OUTPUT-SCALE vsize))))
- ;;(page-width (inexact->exact (ceiling hsize)))
- ;;(page-height (inexact->exact (ceiling vsize)))
-
- (screen-width (gdk-screen-width))
- (screen-height (gdk-screen-height))
- (desktop-height (- screen-height PANELS-HEIGHT))
-
- (go (make <gnome-outputter>
- #:page-stencils (list->vector (ly:paper-book-pages book))
- #:canvas-width page-width
- #:canvas-height page-height
- #:window-width
- ;; huh, *2 -- pixels-per-unit?
- (min (+ SCROLLBAR-SIZE (* page-width 2)) screen-width)
- #:window-height
- (min (+ BUTTON-HEIGHT SCROLLBAR-SIZE (* page-height 2))
- desktop-height))))
-
- ;; ugh. The GOOPS doc promises this is called automagically.
- ;; possibly a goops 1.6.4 problem
- (initialize go)
-
- (map ly:pango-add-afm-decoder
- '("lilypond-feta"
- "lilypond-braces"
- "lilypond-dyn"
- "lilypond-parmesan"))
-
- (dump-page go 0)
-
- (gtk-main)))
-
-(define (dump-page go number)
- (if (or (not (page-stencils go))
- (< number 0)
- (>= number (vector-length (page-stencils go))))
- (stderr "No such page: ~S\n" (1+ number))
-
- (let ((old-canvas (canvas go)))
- (new-canvas go)
- (set! (page-number go) number)
-
- ;; no destroy method for gnome-canvas-text yet.
- ;;(map destroy (gtk-container-get-children main-canvas))
- ;;(map destroy text-items)
-
- (set! (text-items go) '())
- (debugf "page-stencil ~S: ~S\n"
- (page-number go)
- (vector-ref (page-stencils go) (page-number go)))
-
- (ly:interpret-stencil-expression
- ;; ;;(vector-ref (page-stencils go) (page-number go))
- (ly:stencil-expr (vector-ref (page-stencils go) (page-number go)))
- gnome-output-expression go '(0 . 0))
-
- (if old-canvas (destroy old-canvas))
- (add (scrolled go) (canvas go))
- (show (canvas go)))))
-
-(define x-editor #f)
-(define (get-x-editor)
- (if (not x-editor)
- (set! x-editor (getenv "XEDITOR")))
- x-editor)
-
-(define ifs #f)
-(define (get-ifs)
- (if (not ifs)
- (set! ifs (getenv "IFS")))
- (if (not ifs)
- (set! ifs " "))
- ifs)
-
-(define (spawn-editor location)
- (let* ((file-name (car location))
- (line (cadr location))
- (column (caddr location))
- (template (substring (get-x-editor) 0))
-
- ;; Adhere to %l %c %f?
- (command
- (regexp-substitute/global
- #f "%l" (regexp-substitute/global
- #f "%c"
- (regexp-substitute/global
- #f "%f" template 'pre file-name 'post)
- 'pre (number->string column)
- 'post)
- 'pre (number->string line) 'post)))
-
- (debugf "spawning: ~s\n" command)
- (if (= (primitive-fork) 0)
- (let ((command-list (string-split command #\ )));; (get-ifs))))
- (apply execlp command-list)
- (primitive-exit)))))
-
-(define location-callback spawn-editor)
-
-(define (get-location grob)
- (and-let* ((p? (procedure? point-and-click))
- (g grob)
- (cause (ly:grob-property grob 'cause))
- (music-origin (if (ly:music? cause)
- (ly:music-property cause 'origin)
- ;; How come #<unspecied> [and '()]
- ;; are #t? :-(
- #f)))
- (if (ly:input-location? music-origin)
- (ly:input-location music-origin)
- #f)))
-
-;;;(define (item-event go grob item event)
-(define (item-event go item event)
- (case (gdk-event:type event)
- ((enter-notify) (gobject-set-property item 'fill-color "red"))
- ((leave-notify) (gobject-set-property item 'fill-color "black"))
- ((button-press)
- (let ((button (gdk-event-button:button event)))
- (cond
- ((= button 1)
- (and-let* ((grob (hashq-ref (item-grobs go) item #f))
- (location (get-location grob)))
- (location-callback location)))
- ((= button 2)
-
- (and-let*
- ((grob (hashq-ref (item-grobs go) item #f)))
-
- (let ((properties (ly:grob-properties grob))
- (basic-properties (ly:grob-basic-properties grob))
- (x (inexact->exact (gdk-event-button:x-root event)))
- (y (inexact->exact (gdk-event-button:y-root event))))
-
- (debugf "GROB: ~S\n" grob)
- (debugf "PROPERTIES: ~S\n" properties)
- (debugf "BASIC PROPERTIES: ~S\n" basic-properties)
-
- (let ((window (make <gtk-window>))
- (vbox (make <gtk-vbox>))
- (button (make <gtk-button> #:label "Ok")))
-
- (add window vbox)
- (connect button 'clicked (lambda (b) (destroy window)))
-
- (for-each
- (lambda (x)
- (let ((button (make <gtk-button>
- #:xalign 0.0
- #:label
- (string-append
- (symbol->string (car x))
- ": "
- (format #f "~S" (cdr x))))))
- (set-size-request button 150 BUTTON-HEIGHT)
- (add vbox button)))
- properties)
- (add vbox button)
-
- ;; FIXME: how to do window placement?
- ;; - no effect:
- (move window x y)
- (show-all window)
- ;; - shows actual movement:
- (move window x y)
- )))))))
-
- ((2button-press) (gobject-set-property item 'fill-color "green")))
- #t)
-
-(define (scale-canvas go factor)
- (set! (pixels-per-unit go) (* (pixels-per-unit go) factor))
- (set-pixels-per-unit (canvas go) (pixels-per-unit go))
- (for-each
- (lambda (x)
- (let ((scale (gobject-get-property x 'scale))
- (points (gobject-get-property x 'size-points)))
- ;;(gobject-set-property x 'scale pixels-per-unit)
- (gobject-set-property x 'size-points (* points factor))))
- (text-items go)))
-
-(define (key-press-event go item event)
- (let ((keyval (gdk-event-key:keyval event))
- (mods (gdk-event-key:modifiers event)))
- (cond ((and (or (eq? keyval gdk:q)
- (eq? keyval gdk:w))
- (equal? mods '(control-mask modifier-mask)))
- (gtk-main-quit))
- ((and #t ;;(null? mods)
- (eq? keyval gdk:plus))
- (scale-canvas go 2))
- ((and #t ;; (null? mods)
- (eq? keyval gdk:minus))
- (scale-canvas go 0.5))
- ((or (eq? keyval gdk:Page-Up)
- (eq? keyval gdk:BackSpace))
- (dump-page go (1- (page-number go))))
- ((or (eq? keyval gdk:Page-Down)
- (eq? keyval gdk:space))
- (dump-page go (1+ (page-number go)))))
- #f))
-
-(define (new-canvas go)
- (set! (canvas go) (make <gnome-canvas>))
- (set-size-request (canvas go) (window-width go) (window-height go))
- (set-scroll-region (canvas go) 0 0 (canvas-width go) (canvas-height go))
- (set-pixels-per-unit (canvas go) (pixels-per-unit go))
- (make <gnome-canvas-rect>
- #:parent (root (canvas go))
- #:x2 (canvas-width go) #:y2 (canvas-height go)
- #:fill-color "white"))
-
-(define output-gnome-module #f)
-(define (get-output-gnome-module go)
- (if (not output-gnome-module)
- (let ((m (resolve-module '(scm output-gnome))))
- (module-define! m 'canvas-root (lambda () (root (canvas go))))
- (module-define! m 'output-scale output-scale)
- (set! output-gnome-module m)))
- output-gnome-module)
-
-(define-public (gnome-output-expression go expr)
- (let* ((m (get-output-gnome-module go))
- (result (eval expr m)))
- (cond
- ((ly:grob? result) (set! (grob go) result))
- ((is-a? result <gnome-canvas-item>)
-
- ;; AAARGH; grobs happen after stencils
- ;; (connect result 'event (lambda (w e) (item-event go (grob go) w e)))
- (connect result 'event (lambda (w e) (item-event go w e)))
- (if (grob go)
- (hashq-set! (item-grobs go) result (grob go)))
- (set! (grob go) #f)
-
- (if (is-a? result <gnome-canvas-text>)
- (set! (text-items go) (cons result (text-items go))))))))
-
projects / lilypond.git / blobdiff