;;;;
;;;; (c) 2004 Jan Nieuwenhuizen <janneke@gnu.org>
+;;;; See output-gnome.scm for usage information.
+
+
(define-module (scm framework-gnome))
-(use-modules
- (guile)
- (lily))
+(use-modules (guile) (oop goops) (lily))
-;; dump?
-(define (dump-page outputter page page-number page-count)
- (ly:outputter-dump-stencil outputter (ly:page-stencil page)))
+(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)
- (let* ((bookpaper (ly:paper-book-book-paper book))
- (pages (ly:paper-book-pages book))
- (page-number 0)
- (page-count (length pages)))
-
- ;;(header)
- ;; FIXME: should output command, not stencil?
- ;;(ly:outputter-dump-string outputter '(header))
- ;; hmm, probably need (ly:outputter-command but its too late for that
- ;; kind of elegancy now :-)
- (ly:outputter-dump-stencil outputter (ly:make-stencil '(header)
- '(0 . 0) '(0 . 0)))
-
- (for-each
- (lambda (page)
- (set! page-number (1+ page-number))
- (dump-page outputter page page-number page-count))
- pages)
-
- (ly:outputter-dump-stencil outputter (ly:make-stencil '(end-output)
- '(0 . 0) '(0 . 0)))))
+ (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