/usr/share/gnucash/scm/html-scatter.scm is in gnucash-common 1:2.6.15-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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;; html-scatter.scm : generate HTML programmatically, with support
;; for simple style elements.
;; Copyright 2001 Christian Stimming <stimming@tuhh.de>
;;
;; Adapted from html-barchart.scm which is
;; Copyright 2000 Bill Gribble <grib@gnumatic.com>
;;
;; This program is free software; you can redistribute it and/or
;; modify it under the terms of the GNU General Public License as
;; published by the Free Software Foundation; either version 2 of
;; the License, or (at your option) any later version.
;;
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with this program; if not, contact:
;;
;; Free Software Foundation Voice: +1-617-542-5942
;; 51 Franklin Street, Fifth Floor Fax: +1-617-542-2652
;; Boston, MA 02110-1301, USA gnu@gnu.org
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(load-from-path "html-jqplot")
(define <html-scatter>
(make-record-type "<html-scatter>"
'(width
height
title
subtitle
x-axis-label
y-axis-label
;; a list of x-y-value lists.
data
;; Valid marker names are:
;; diamond, circle, square, x, plus, dash,
;; filledDiamond, filledCircle, filledSquare
marker
;; The color of the markers outline. Should be a hex string,
;; as returned by gnc:color-option->hex-string, prefixed by
;; #, like "#ff0000" for red
markercolor
)))
(define gnc:html-scatter?
(record-predicate <html-scatter>))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; <html-scatter> class
;; generate the <object> form for a scatter plot.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(define gnc:make-html-scatter-internal
(record-constructor <html-scatter>))
(define (gnc:make-html-scatter)
(gnc:make-html-scatter-internal -1 -1 #f #f #f #f '() #f #f))
(define gnc:html-scatter-width
(record-accessor <html-scatter> 'width))
(define gnc:html-scatter-set-width!
(record-modifier <html-scatter> 'width))
(define gnc:html-scatter-height
(record-accessor <html-scatter> 'height))
(define gnc:html-scatter-set-height!
(record-modifier <html-scatter> 'height))
(define gnc:html-scatter-title
(record-accessor <html-scatter> 'title))
(define gnc:html-scatter-set-title!
(record-modifier <html-scatter> 'title))
(define gnc:html-scatter-subtitle
(record-accessor <html-scatter> 'subtitle))
(define gnc:html-scatter-set-subtitle!
(record-modifier <html-scatter> 'subtitle))
(define gnc:html-scatter-x-axis-label
(record-accessor <html-scatter> 'x-axis-label))
(define gnc:html-scatter-set-x-axis-label!
(record-modifier <html-scatter> 'x-axis-label))
(define gnc:html-scatter-y-axis-label
(record-accessor <html-scatter> 'y-axis-label))
(define gnc:html-scatter-set-y-axis-label!
(record-modifier <html-scatter> 'y-axis-label))
(define gnc:html-scatter-data
(record-accessor <html-scatter> 'data))
(define gnc:html-scatter-set-data!
(record-modifier <html-scatter> 'data))
(define gnc:html-scatter-marker
(record-accessor <html-scatter> 'marker))
(define gnc:html-scatter-set-marker!
(record-modifier <html-scatter> 'marker))
(define gnc:html-scatter-markercolor
(record-accessor <html-scatter> 'markercolor))
(define gnc:html-scatter-set-markercolor!
(record-modifier <html-scatter> 'markercolor))
(define (gnc:html-scatter-add-datapoint! scatter newpoint)
(if (and (list? newpoint)
(not (null? newpoint)))
(gnc:html-scatter-set-data!
scatter
(cons newpoint (gnc:html-scatter-data scatter)))))
;; The Renderer
(define (gnc:html-scatter-render scatter doc)
(define (ensure-numeric elt)
(cond ((number? elt)
(exact->inexact elt))
((string? elt)
(with-input-from-string elt
(lambda ()
(let ((n (read)))
(if (number? n) n 0.0)))))
((gnc:gnc-numeric? elt)
(gnc-numeric-to-double elt))
(#t
0.0)))
(let* ((retval '())
(push (lambda (l) (set! retval (cons l retval))))
(title (gnc:html-scatter-title scatter))
(subtitle (gnc:html-scatter-subtitle scatter))
(x-label (gnc:html-scatter-x-axis-label scatter))
(y-label (gnc:html-scatter-y-axis-label scatter))
(data (gnc:html-scatter-data scatter))
(marker (gnc:html-scatter-marker scatter))
(markercolor (string-append "#" (gnc:html-scatter-markercolor scatter)))
; Use a unique chart-id for each chart. This prevents chart
; clashed on multi-column reports
(chart-id (string-append "chart-" (number->string (random 999999)))))
(if (and (list? data)
(not (null? data)))
(begin
(push (gnc:html-js-include "jqplot/jquery.min.js"))
(push (gnc:html-js-include "jqplot/jquery.jqplot.js"))
(push (gnc:html-css-include "jqplot/jquery.jqplot.css"))
(push "<div id=\"")(push chart-id)(push "\" style=\"width:")
(push (gnc:html-scatter-width scatter))
(push "px;height:")
(push (gnc:html-scatter-height scatter))
(push "px;\"></div>\n")
(push "<script id=\"source\">\n$(function () {")
(push "var data = [];")
(push "var series = [];\n")
(if (and data (list? data))
(let ((x-data (map-in-order car data))
(y-data (map-in-order cadr data)))
(for-each (lambda (x y)
(push " data.push([")
(push (ensure-numeric x))
(push ", ")
(push (ensure-numeric y))
(push "]);\n"))
x-data y-data)
))
(push "var options = {
legend: { show: false, },
seriesDefaults: {
markerOptions: {
style: '")
(push marker)
(push "',
color: '")
(push markercolor)
(push "', },
},
series: series,
axesDefaults: {
},
axes: {
xaxis: {
},
yaxis: {
autoscale: true,
},
},
};\n")
(if title
(begin
(push " options.title = \"")
(push title) (push "\";\n")))
(if subtitle
(begin
(push " options.title += \" (")
(push subtitle) (push ")\";\n")))
(if (and (string? x-label) (> (string-length x-label) 0))
(begin
(push " options.axes.xaxis.label = \"")
(push x-label)
(push "\";\n")))
(if (and (string? y-label) (> (string-length y-label) 0))
(begin
(push " options.axes.yaxis.label = \"")
(push y-label)
(push "\";\n")))
(push "$.jqplot.config.enablePlugins = true;\n")
(push "var plot = $.jqplot('")(push chart-id)(push "', [data], options);\n")
(push "});\n</script>"))
(begin
(gnc:warn "Scatter chart has no non-zero data")
" "))
retval))
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