-;;;; 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
- (ice-9 regex)
- (gnome gtk)
- (gnome gtk gdk-event))
-
-;; the name of the module will change to canvas rsn
-(if (resolve-module '(gnome gw canvas))
- (use-modules (gnome gw canvas))
- (use-modules (gnome gw libgnomecanvas)))
-
-(define-public (output-framework-gnome outputter book scopes fields basename)
- (if #t
- (gnome-main book)
- (ly:outputter-dump-stencil
- outputter
- (ly:make-stencil (list 'gnome-main book) '(0 . 0) '(0 . 0)))))
-
-;; WTF? -- jcn
-;; Yay, I *finally* found it!
-(define-public output-framework output-framework-gnome)
-
-(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)
- ;; debugging
- (if #f
- (begin
- (apply format (cons (current-error-port) (cons string rest)))
- (force-output (current-error-port)))))
-
-(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)
- (location #:init-value #f #:accessor location)
- (item-locations #:init-value (make-hash-table 31) #:accessor item-locations)
- (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
- (gtype-instance-signal-connect
- button 'clicked (lambda (b) (gtk-main-quit)))
- (gtype-instance-signal-connect
- next 'clicked (lambda (b) (dump-page go (1+ (page-number go)))))
- (gtype-instance-signal-connect
- prev 'clicked (lambda (b) (dump-page go (1- (page-number go)))))
- (gtype-instance-signal-connect
- (window go) 'key-press-event key-press-event)
-
- (show-all (window go))))
-
-
-(define-public global-go #f)
-
-(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.
- (initialize go)
-
- (map ly:pango-add-afm-decoder
- '("lilypond-feta"
- "lilypond-braces"
- "lilypond-dyn"
- "lilypond-parmesan"))
-
- (dump-page go 0)
-
- ;; ugh
- (set! global-go go)
-
- (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?
- ;;(map destroy (gtk-container-get-children main-canvas))
- ;;(map destroy text-items)
-
- (set! (text-items go) '())
- (stderr "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* ((line (car location))
- (column (cadr location))
- (file-name (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)))
-
- (stderr "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 (item-event item event . data)
-(define-public (item-event item event . data)
- (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)
-
- ;;FIXME
- (let ((location (hashq-ref (item-locations global-go) item #f)))
-
- (if location
- (location-callback location)
- (stderr "no location\n"))))
- ((2button-press) (gobject-set-property item 'fill-color "red")))
- #t)
-
-(define (scale-canvas factor)
- (set! pixels-per-unit (* pixels-per-unit factor))
- (set-pixels-per-unit main-canvas pixels-per-unit)
- (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))
-
-(define (key-press-event item event . data)
- (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 2))
- ((and #t ;; (null? mods)
- (eq? keyval gdk:minus))
- (scale-canvas 0.5))
- ((or (eq? keyval gdk:Page-Up)
- (eq? keyval gdk:BackSpace))
- ;;FIXME
- (dump-page global-go (1- (page-number global-go))))
- ((or (eq? keyval gdk:Page-Down)
- (eq? keyval gdk:space))
- ;;FIXME
- (dump-page global-go (1+ (page-number global-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
- ((and (pair? result)
- (eq? (car result) 'location))
- (set! (location go) (cdr result)))
- ((is-a? result <gnome-canvas-item>)
- (gtype-instance-signal-connect result 'event item-event)
- (if (location go)
- (hashq-set! (item-locations go) result (location go)))))))
-
projects / lilypond.git / blobdiff