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|
;
; module providing gwave support for plot/export using GNU graph
; as the backend.
;
(define-module (app gwave export-gnugraph)
:use-module (gtk gtk)
:use-module (ice-9 optargs)
:use-module (ice-9 format)
:use-module (app gwave cmds)
:use-module (app gwave export)
:use-module (app gwave utils)
:use-module (app gwave gtk-helpers)
:use-module (app gwave gwave-config)
)
(read-set! keywords 'prefix)
(debug-enable 'backtrace)
(debug-enable 'debug)
; Build a sub-dialog for gnu GRAPH plot options
; Returns a list of two items:
; - A GtkWidget for the notebook pannel of the dialog.
; - A procedure, which when called, will return
; a plot options list. The plot options list will be
; passed unchanged to the export procedure.
(define (build-gnugraph-panel)
(let* ((frame (gtk-frame-new "GNU Graph"))
; (hbox (gtk-hbox-new #f 5))
(vbox (gtk-vbox-new #f 5))
(opt-format "ps")
(format-optmenu (build-option-menu
(lambda (f) (set! opt-format f))
(list '("Postscript" . "ps")
'("Portable Network Graphics" . "png")
'("Portable Anymap" . "pnm")
'("Scalable Vector Graphics" . "svg")
'("Fig" . "fig")
'("Gnu Graphics Metafile" . "meta"))))
(landscape-hbox (gtk-hbox-new #f 0))
(opt-landscape #f)
(landscape-rbtns (build-radiobutton-box
landscape-hbox
(lambda (v) (set! opt-landscape v))
(list '("Portrait" . #f)
'("Landscape" . #t))))
(opt-color #f)
(color-rbtns (build-radiobutton-box
(gtk-hbox-new #f 0)
(lambda (v) (set! opt-color v))
(list '("Greyscale" . #f)
'("Color" . #t) )))
)
(gtk-container-border-width frame 10)
(gtk-widget-set-usize frame 200 150)
(gtk-widget-show frame)
(gtk-container-add frame vbox)
(gtk-box-pack-start vbox format-optmenu #f #f 0)
(gtk-widget-show vbox)
(gtk-box-pack-start vbox landscape-rbtns #f #f 0)
(gtk-widget-show landscape-rbtns)
(gtk-box-pack-start vbox color-rbtns #f #f 0)
(gtk-widget-show color-rbtns)
(list frame
(lambda ()
; (format #t "opt-landscape=~s\n" opt-landscape)
(append (list "-T" opt-format)
(if opt-landscape
(list "--rotation" "90")
'())
(if opt-color
(list "-C")
'())
)))
))
; export a wavepanel's data in the format needed by gnu graph's
; "a" input format.
(define (export-wavepanel-to-ggfile f wp)
(let ((p (open f (logior O_WRONLY O_CREAT O_TRUNC) #o0777))
(minx (wtable-start-xval))
(maxx (wtable-end-xval)))
(for-each (lambda (vw)
(export-variables (cons vw '()) p minx maxx)
(display "\n" p))
(wavepanel-visiblewaves wp))
(close-port p)
))
; export-wavepanels-gnugraph -
;
; generate hardcopy or documentary representation of the displayed
; waveforms on one or more wavepanels, using gnu graph as
; the formatting backend.
;
(define (export-wavepanels-gnugraph fname panellist options keeptmp)
(let* ((args (append (list-copy options)
(list "--input-format" "a"
"--width-of-plot" "0.9")))
(shfile (format #f "~a.sh" (filter-metachars fname)))
(tmpbase (filter-metachars fname))
(tmpfilelist (list shfile))
(ngraphs (length panellist))
(idx 0))
(set! args (append args (list "--height-of-plot"
(format #f "~f" (- (/ 0.9 ngraphs) 0.05)))))
(set! args (append args '("--toggle-round-to-next-tick" "X"
"--font-size" "0.03"
"--grid-style" "3")))
(if (wtable-xlogscale?)
(append! args '("-l" "X")))
(for-each (lambda (wp)
; (format #t "\nwavepanel: ~s args: ~s\n" wp args)
(if (> idx 0)
(set! args (append args (list "--reposition" "0"
(format #f "~f" (* idx (/ 0.9 ngraphs)))
"1"))))
(if (wavepanel-ylogscale? wp)
(set! args (append args '("-l" "Y"))))
(let ((fname (format #f "~a.~s" tmpbase idx)))
; (let ((fname (string-append tmpbase (number->string idx))))
(export-wavepanel-to-ggfile fname wp)
(set! args (append args (list fname)))
(set! tmpfilelist (cons fname tmpfilelist))
(if (wavepanel-ylogscale? wp)
(set! args (append args '("-l" "Y"))))
(set! idx (+ 1 idx))
))
panellist)
; finally we have the arglist and tmpfilelist
; (format #t "export-graph shfile=~s args=~s\ntmpfilelist=~s\n"
; shfile args tmpfilelist)
(with-output-to-file shfile
(lambda ()
(display "#!/bin/sh\n")
(format #t "~a ~a\n" gnugraph-pathname (join " " args))
(if (not keeptmp)
(format #t "rm -f ~a\n" (join " " tmpfilelist)))))
; (format #t "running sh -C ~a\n" shfile)
(subprocess-to-file fname "/bin/sh" (list "sh" shfile))
))
(register-plotfilter "GNU Graph"
build-gnugraph-panel export-wavepanels-gnugraph)
|
