/usr/share/gnucash/scm/html-barchart.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-barchart.scm : generate HTML programmatically, with support
;; for simple style elements.
;; 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-barchart>
(make-record-type "<html-barchart>"
'(width
height
title
subtitle
x-axis-label
y-axis-label
col-labels
row-labels
col-colors
legend-reversed?
row-labels-rotated?
stacked?
data
button-1-bar-urls
button-2-bar-urls
button-3-bar-urls
button-1-legend-urls
button-2-legend-urls
button-3-legend-urls)))
(define gnc:html-barchart?
(record-predicate <html-barchart>))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; <html-barchart> class
;; generate the <object> form for a barchart.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(define gnc:make-html-barchart-internal
(record-constructor <html-barchart>))
(define (gnc:make-html-barchart)
(gnc:make-html-barchart-internal -1 -1 #f #f #f #f '() '() '()
#f #f #f '() #f #f #f #f #f #f))
(define gnc:html-barchart-data
(record-accessor <html-barchart> 'data))
(define gnc:html-barchart-set-data!
(record-modifier <html-barchart> 'data))
(define gnc:html-barchart-width
(record-accessor <html-barchart> 'width))
(define gnc:html-barchart-set-width!
(record-modifier <html-barchart> 'width))
(define gnc:html-barchart-height
(record-accessor <html-barchart> 'height))
(define gnc:html-barchart-set-height!
(record-modifier <html-barchart> 'height))
(define gnc:html-barchart-x-axis-label
(record-accessor <html-barchart> 'x-axis-label))
(define gnc:html-barchart-set-x-axis-label!
(record-modifier <html-barchart> 'x-axis-label))
(define gnc:html-barchart-y-axis-label
(record-accessor <html-barchart> 'y-axis-label))
(define gnc:html-barchart-set-y-axis-label!
(record-modifier <html-barchart> 'y-axis-label))
(define gnc:html-barchart-row-labels
(record-accessor <html-barchart> 'row-labels))
(define gnc:html-barchart-set-row-labels!
(record-modifier <html-barchart> 'row-labels))
(define gnc:html-barchart-row-labels-rotated?
(record-accessor <html-barchart> 'row-labels-rotated?))
(define gnc:html-barchart-set-row-labels-rotated?!
(record-modifier <html-barchart> 'row-labels-rotated?))
(define gnc:html-barchart-stacked?
(record-accessor <html-barchart> 'stacked?))
(define gnc:html-barchart-set-stacked?!
(record-modifier <html-barchart> 'stacked?))
(define gnc:html-barchart-col-labels
(record-accessor <html-barchart> 'col-labels))
(define gnc:html-barchart-set-col-labels!
(record-modifier <html-barchart> 'col-labels))
(define gnc:html-barchart-col-colors
(record-accessor <html-barchart> 'col-colors))
(define gnc:html-barchart-set-col-colors!
(record-modifier <html-barchart> 'col-colors))
(define gnc:html-barchart-legend-reversed?
(record-accessor <html-barchart> 'legend-reversed?))
(define gnc:html-barchart-set-legend-reversed?!
(record-modifier <html-barchart> 'legend-reversed?))
(define gnc:html-barchart-title
(record-accessor <html-barchart> 'title))
(define gnc:html-barchart-set-title!
(record-modifier <html-barchart> 'title))
(define gnc:html-barchart-subtitle
(record-accessor <html-barchart> 'subtitle))
;; Note: Due to Bug726449 the input string's non-printable control
;; characters must translated to HTML format tags BEFORE
;; or WHEN calling this function.
;; AND:
;; To ensure that the generated subtitle doesn't contain any
;; unescaped quotes or backslashes, all strings must be freed
;; from those by calling jqplot-escape-string.
;; Otherwise we're opening the gates again for bug 721768.
;;
;; Example: "\n" must be translated to "<br /> to introduce
;; a line break into the chart subtitle.
;;
;; Example call:
;; (gnc:html-barchart-set-subtitle! chart
;; (string-append "Bgt:"
;; (jqplot-escape-string (number->string bgt-sum))
;; "<br /> Act:" ;; line break in the chart sub-title
;; (jqplot-escape-string (number->string act-sum))))
(define gnc:html-barchart-set-subtitle!
(record-modifier <html-barchart> 'subtitle))
;; Note: ATM you can specify one url per column, but this url will be
;; used for all of the rows. Otherwise we could have cols*rows urls
;; (quite a lot), but this first requires fixing
;; guppi_bar_1_callback() in gnome/gnc-html-guppi.c .
;; FIXME url's haven't been working since GnuCash 1.x
;; GnuCash 2.x switched from guppy to goffice, which
;; made it very hard to remain the url functionality
;; At this point I (gjanssens) is in the process of
;; moving from goffice to jqplot for our charts
;; which perhaps may allow urls again in the charts
;; I'm keeping the parameters below around to remind
;; us this still has to be investigated again
(define gnc:html-barchart-button-1-bar-urls
(record-accessor <html-barchart> 'button-1-bar-urls))
(define gnc:html-barchart-set-button-1-bar-urls!
(record-modifier <html-barchart> 'button-1-bar-urls))
(define gnc:html-barchart-button-2-bar-urls
(record-accessor <html-barchart> 'button-2-bar-urls))
(define gnc:html-barchart-set-button-2-bar-urls!
(record-modifier <html-barchart> 'button-2-bar-urls))
(define gnc:html-barchart-button-3-bar-urls
(record-accessor <html-barchart> 'button-3-bar-urls))
(define gnc:html-barchart-set-button-3-bar-urls!
(record-modifier <html-barchart> 'button-3-bar-urls))
(define gnc:html-barchart-button-1-legend-urls
(record-accessor <html-barchart> 'button-1-legend-urls))
(define gnc:html-barchart-set-button-1-legend-urls!
(record-modifier <html-barchart> 'button-1-legend-urls))
(define gnc:html-barchart-button-2-legend-urls
(record-accessor <html-barchart> 'button-2-legend-urls))
(define gnc:html-barchart-set-button-2-legend-urls!
(record-modifier <html-barchart> 'button-2-legend-urls))
(define gnc:html-barchart-button-3-legend-urls
(record-accessor <html-barchart> 'button-3-legend-urls))
(define gnc:html-barchart-set-button-3-legend-urls!
(record-modifier <html-barchart> 'button-3-legend-urls))
(define (gnc:html-barchart-append-row! barchart newrow)
(let ((dd (gnc:html-barchart-data barchart)))
(set! dd (append dd (list newrow)))
(gnc:html-barchart-set-data! barchart dd)))
(define (gnc:html-barchart-prepend-row! barchart newrow)
(let ((dd (gnc:html-barchart-data barchart)))
(set! dd (cons newrow dd))
(gnc:html-barchart-set-data! barchart dd)))
(define (gnc:html-barchart-append-column! barchart newcol)
(let ((colnum 0)
(rownum 0)
(rows (gnc:html-barchart-data barchart))
(this-row #f)
(new-row #f))
;; find out how many cols are already there in the deepest row
(for-each
(lambda (row)
(let ((l (length row)))
(if (> l colnum)
(set! colnum l))))
rows)
;; append the elements of 'newrow' to the rowumns
(for-each
(lambda (newelt)
;; find the row, or append one
(if (not (null? rows))
(begin
(set! new-row #f)
(set! this-row (car rows))
(if (null? (cdr rows))
(set! rows #f)
(set! rows (cdr rows))))
(begin
(set! new-row #t)
(set! this-row '())))
;; make sure the rowumn is long enough, then append the data
(let loop ((l (length this-row))
(r (reverse this-row)))
(if (< l colnum)
(loop (+ l 1) (cons #f r))
(set! this-row
(reverse (cons newelt r)))))
(if new-row
(gnc:html-barchart-append-row! barchart this-row)
(list-set! (gnc:html-barchart-data barchart) rownum this-row))
(set! rownum (+ 1 rownum)))
newcol)))
(define (gnc:not-all-zeros data)
(define (myor list)
(begin
(gnc:debug "list" list)
(if (null? list) #f
(or (car list) (myor (cdr list))))))
(cond ((number? data) (not (= 0 data)))
((list? data) (myor (map gnc:not-all-zeros data)))
(else #f)))
(define (gnc:html-barchart-prepend-column! barchart newcol)
(let ((rows (gnc:html-barchart-data barchart))
(this-row #f)
(new-row #f)
(rownum 0))
(for-each
(lambda (elt)
(if (not (null? rows))
(begin
(set! new-row #f)
(set! this-row (car rows))
(if (null? (cdr rows))
(set! rows #f)
(set! rows (cdr rows))))
(begin
(set! new-row #t)
(set! this-row '())))
(if new-row
(gnc:html-barchart-append-row! barchart (list elt))
(list-set! (gnc:html-barchart-data barchart) rownum
(cons elt this-row)))
(set! rownum (+ 1 rownum)))
newcol)))
(define (gnc:html-barchart-render barchart 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)))
(define (catenate-escaped-strings nlist)
(if (not (list? nlist))
""
(with-output-to-string
(lambda ()
(for-each
(lambda (s)
(let ((escaped
(regexp-substitute/global
#f " "
(regexp-substitute/global
#f "\\\\" s
'pre "\\\\" 'post)
'pre "\\ " 'post)))
(display escaped)
(display " ")))
nlist)))))
(let* ((retval '())
(push (lambda (l) (set! retval (cons l retval))))
(title (gnc:html-barchart-title barchart))
(subtitle (gnc:html-barchart-subtitle barchart))
(url-1
(catenate-escaped-strings
(gnc:html-barchart-button-1-bar-urls barchart)))
(url-2
(catenate-escaped-strings
(gnc:html-barchart-button-2-bar-urls barchart)))
(url-3
(catenate-escaped-strings
(gnc:html-barchart-button-3-bar-urls barchart)))
(legend-1
(catenate-escaped-strings
(gnc:html-barchart-button-1-legend-urls barchart)))
(legend-2
(catenate-escaped-strings
(gnc:html-barchart-button-2-legend-urls barchart)))
(legend-3
(catenate-escaped-strings
(gnc:html-barchart-button-3-legend-urls barchart)))
(x-label (gnc:html-barchart-x-axis-label barchart))
(y-label (gnc:html-barchart-y-axis-label barchart))
(data (gnc:html-barchart-data barchart))
(dummy1 (gnc:debug "data " data))
(row-labels (catenate-escaped-strings
(gnc:html-barchart-row-labels barchart)))
(col-labels (catenate-escaped-strings
(gnc:html-barchart-col-labels barchart)))
(col-colors (catenate-escaped-strings
(gnc:html-barchart-col-colors barchart)))
(series-data-start (lambda (series-index)
(push "var d")
(push series-index)
(push " = [];\n")))
(series-data-add (lambda (series-index x y)
(push (string-append
" d"
(number->string series-index)
".push(["
(number->string x)
", "
(number->string y)
"]);\n"))))
(series-data-end (lambda (series-index label)
(push "data.push(d")
(push series-index)
(push ");\n")
(push "series.push({ label: \"")
(push (jqplot-escape-string label))
(push "\"});\n\n")))
; 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))
(gnc:not-all-zeros data))
(begin
(push (gnc:html-js-include "jqplot/jquery.min.js"))
(push (gnc:html-js-include "jqplot/jquery.jqplot.js"))
(push (gnc:html-js-include "jqplot/jqplot.barRenderer.js"))
(push (gnc:html-js-include "jqplot/jqplot.cursor.js"))
(push (gnc:html-js-include "jqplot/jqplot.categoryAxisRenderer.js"))
(push (gnc:html-js-include "jqplot/jqplot.highlighter.js"))
(push (gnc:html-js-include "jqplot/jqplot.canvasTextRenderer.js"))
(push (gnc:html-js-include "jqplot/jqplot.canvasAxisTickRenderer.js"))
(push (gnc:html-css-include "jqplot/jquery.jqplot.css"))
(push "<div id=\"")(push chart-id)(push "\" style=\"width:")
(push (gnc:html-barchart-width barchart))
(push "px;height:")
(push (gnc:html-barchart-height barchart))
(push "px;\"></div>\n")
(push "<script id=\"source\">\n$(function () {")
(push "var data = [];")
(push "var series = [];\n")
(if (and data (list? data))
(let ((rows (length data))
(cols 0))
(let loop ((col 0) (rowcnt 1))
(series-data-start col)
(if (list? (car data))
(begin
(set! cols (length (car data)))))
(for-each
(lambda (row)
(if (<= rowcnt rows)
(series-data-add col rowcnt
(ensure-numeric (list-ref-safe row col)))
)
(set! rowcnt (+ rowcnt 1)))
data)
(series-data-end col (list-ref-safe (gnc:html-barchart-col-labels barchart) col))
(if (< col (- cols 1))
(loop (+ 1 col) 1)))))
(push "var all_ticks = [")
(for-each
(lambda (val)
(push "\"")
(push val)
(push "\","))
(gnc:html-barchart-row-labels barchart))
(push "];\n")
(push "var options = {
shadowAlpha: 0.07,
stackSeries: false,
legend: {
show: true,
placement: \"outsideGrid\", },
seriesDefaults: {
renderer: $.jqplot.BarRenderer,
rendererOptions: {
shadowAlpha: 0.04,
shadowDepth: 3,
},
fillToZero: true,
},
series: series,
axesDefaults: {
},
grid: {
},
axes: {
xaxis: {
renderer:$.jqplot.CategoryAxisRenderer,
tickRenderer: $.jqplot.CanvasAxisTickRenderer,
tickOptions: {
angle: -30,
fontSize: '10pt',
},
},
yaxis: {
autoscale: true,
},
},
highlighter: {
tooltipContentEditor: formatTooltip,
},
cursor:{
show: true,
showTooltip: false,
zoom: true,
},
};\n")
(push " options.stackSeries = ")
(push (if (gnc:html-barchart-stacked? barchart)
"true;\n"
"false;\n"))
(if title
(begin
(push " options.title = \"")
(push (jqplot-escape-string title))
(push "\";\n")))
(if subtitle
(begin
(push " options.title += \" <br />")
(push subtitle)
(push "\";\n")))
(if (and (string? x-label) (> (string-length x-label) 0))
(begin
(push " options.axes.xaxis.label = \"")
(push x-label)
(push "\";\n")))
(if (and (string? y-label) (> (string-length y-label) 0))
(begin
(push " options.axes.yaxis.label = \"")
(push y-label)
(push "\";\n")))
(push " options.axes.xaxis.ticks = all_ticks;\n")
(push "$.jqplot.config.enablePlugins = true;\n")
(push "$(document).ready(function() {
var plot = $.jqplot('")(push chart-id)(push"', data, options);
var int_chart_width = document.getElementById(\"")(push chart-id)(push"\").getElementsByClassName(\"jqplot-zoom-canvas\")[0].width;
plot.axes.xaxis.ticks = getVisualTicks(int_chart_width);
plot.replot();
});
function formatTooltip(str, seriesIndex, pointIndex) {
if (options.axes.xaxis.ticks[pointIndex] !== undefined)
x = options.axes.xaxis.ticks[pointIndex];
else
x = pointIndex;
y = data[seriesIndex][pointIndex][1].toFixed(2);
return options.series[seriesIndex].label + '<br/>' + x + '<br/><b>' + y + '</b>';
}
function getVisualTicks(chart_width) {
var num_ticks = all_ticks.length;
var label_width = 25;
var num_labels = chart_width / label_width;
var show_every_nth_label = Math.ceil (num_ticks / num_labels);
var visual_ticks = [];
if (show_every_nth_label == 0)
show_every_nth_label = 1;
for (counter = 0; counter < all_ticks.length; counter++) {
if ((counter % show_every_nth_label) == 0)
visual_ticks.push (all_ticks[counter]);
else
visual_ticks.push (' ');
}
return visual_ticks;
}\n")
(push "});\n</script>")
(gnc:msg (string-join (reverse (map (lambda (e) (if (number? e) (number->string e) e)) retval)) ""))
)
(begin
(gnc:warn "barchart has no non-zero data.")
" "))
retval))
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