280 lines
9.8 KiB
JavaScript
280 lines
9.8 KiB
JavaScript
'use strict';
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/*@
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Ox.Chart <f> Bar Chart
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() -> <o> Chart object
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(options) -> <o> Chart object
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(options, self) -> <o> Chart object
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options <o> Options
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color <[n]|[[n]]|[128, 128, 128]> Bar color
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data <o> {k: v, ...} or {k: {k: v, ...}, ...}
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formatKey <f|null> Format function for keys
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keyAlign <s|'right'> Alignment of keys
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keyWidth <n|128> Width of keys
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rows <n|1> undocumented
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sort <o|{key: 'value', operator: '-'}> Sort
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title <s|''> Chart title
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width <n|512> Chart width
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self <o> shared private variable
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@*/
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Ox.Chart = function(options, self) {
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self = self || {};
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var that = Ox.Element({}, self)
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.defaults({
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color: [128, 128, 128],
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data: {},
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formatKey: null,
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keyAlign: 'right',
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keyWidth: 128,
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rows: 1,
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sort: {key: 'value', operator: '-'},
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sortKey: null,
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title: '',
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width: 512
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})
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.options(options || {})
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.addClass('OxChart')
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.css({
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width: self.options.width + 'px',
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height: 16 + Ox.len(self.options.data) * 16 + 'px',
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overflowY: 'hidden'
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});
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self.valueWidth = self.options.width - self.options.keyWidth;
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self.keys = Object.keys(self.options.data);
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if (Ox.isObject(self.options.data[self.keys[0]])) {
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if (Ox.isUndefined(options.color)) {
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self.options.color = [
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[192, 64, 64], [ 64, 192, 64], [ 64, 64, 192],
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[192, 192, 64], [ 64, 192, 192], [192, 64, 192],
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[192, 128, 64], [ 64, 192, 128], [128, 64, 192],
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[192, 64, 128], [128, 192, 64], [ 64, 128, 192]
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];
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}
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self.subData = {};
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}
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// fixme: a lot of the sorting is unneeded, since it happens in the list
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self.sort = {};
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self.totals = {};
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Ox.forEach(self.options.data, function(value, key) {
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self.totals[key] = self.subData ? Ox.sum(value) : value;
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if (self.subData) {
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Object.keys(value).forEach(function(subKey) {
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self.subData[subKey] = (self.subData[subKey] || 0) + value[subKey];
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});
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}
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self.sort[key] = key.replace(/(\d+)/g, function(number) {
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return Ox.pad(number, 16);
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});
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});
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self.max = Ox.max(self.totals);
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self.sum = Ox.sum(self.totals);
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if (self.subData) {
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Ox.forEach(self.subData, function(subValue, subKey) {
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self.sort[subKey] = subKey.replace(/(\d+)/g, function(number) {
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return Ox.pad(number, 16);
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});
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});
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self.subKeys = Object.keys(self.subData).sort(function(a, b) {
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var aValue = self.subData[a],
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bValue = self.subData[b];
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return a === '' ? 1
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: b === '' ? -1
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//: aValue < bValue ? 1
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//: aValue > bValue ? -1
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: self.sort[a] < self.sort[b] ? -1
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: self.sort[a] > self.sort[b] ? 1
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: 0;
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});
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}
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self.items = self.keys.map(function(key) {
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return {key: key, value: self.options.data[key]};
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})
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.sort(function(a, b) {
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var key = self.options.sort.key,
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aValue = key == 'key' ? self.sort[a.key]
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: self.subData ? self.totals[a.key] : a.value,
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bValue = key == 'key' ? self.sort[b.key]
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: self.subData ? self.totals[b.key] : b.value;
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return aValue < bValue ? (self.options.sort.operator == '+' ? -1 : 1)
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: aValue > bValue ? (self.options.sort.operator == '+' ? 1 : -1)
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: key == 'value' && self.sort[a.key] < self.sort[b.key] ? -1
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: key == 'value' && self.sort[a.key] > self.sort[b.key] ? 1
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: 0;
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});
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if (self.options.rows == 2) {
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self.row = 0;
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}
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self.$title = Ox.Bar({size: 16})
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.append(
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$('<div>')
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.css({margin: '1px 0 0 4px'})
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.html(self.options.title)
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)
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.appendTo(that);
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self.$chart = $('<div>')
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.css({position: 'absolute', top: '16px'})
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.append(renderChart())
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.appendTo(that);
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function getColumns() {
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return [
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{
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align: self.options.keyAlign,
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format: self.options.formatKey,
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id: 'key',
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width: self.options.keyWidth,
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visible: true,
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},
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{
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format: renderValue,
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id: 'value',
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width: self.valueWidth,
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visible: true
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}
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];
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}
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function getWidths(values) {
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var max, maxKeys,
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total = Ox.sum(values),
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totalWidth = Math.round(total / self.max * self.valueWidth),
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widths = {};
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Ox.forEach(values, function(value, key) {
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widths[key] = Math.round(value / total * totalWidth);
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});
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while (Ox.sum(widths) != totalWidth) {
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max = Ox.max(widths);
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maxKeys = Ox.map(Object.keys(widths), function(key) {
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return widths[key] == max ? key : null;
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});
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widths[maxKeys[0]] += Ox.sum(widths) < totalWidth ? 1 : -1;
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}
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return widths;
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}
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function renderChart() {
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return Ox.TextList({
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columns: getColumns(),
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items: self.items,
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max: 0,
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min: 0,
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pageLength: self.items.length,
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sort: [self.options.sort],
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width: self.options.width
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})
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.css({
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left: 0,
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top: 0,
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width: self.options.width + 'px',
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height: self.items.length * 16 + 'px'
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});
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}
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function renderValue(value, data) {
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var $bars = [],
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$element,
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colors = [], len, widths;
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if (!self.subData) {
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$element = $bars[0] = Ox.Element({
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element: '<div>',
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tooltip: Ox.formatNumber(value)
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+ ' (' + Ox.formatPercent(value * self.options.rows, self.sum, 2) + ')'
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})
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.css({
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width: Math.round(value / self.max * self.valueWidth) + 'px',
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height: '14px',
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borderRadius: '4px',
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marginLeft: '-4px'
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});
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colors[0] = Ox.isFunction(self.options.color)
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? self.options.color(data.key) : self.options.color;
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} else {
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$element = $('<div>')
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.css({
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width: Math.round(self.totals[data.key] / self.max * self.valueWidth) + 'px',
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height: '14px',
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marginLeft: '-4px'
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});
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len = Ox.len(value);
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widths = getWidths(value);
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self.subKeys.forEach(function(subKey, subKeyIndex) {
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var i = $bars.length,
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subValue = value[subKey];
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if (subValue) {
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$bars[i] = Ox.Element({
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element: '<div>',
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/*
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tooltip: Ox.formatNumber(self.totals[data.key])
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+ ' (' + Ox.formatPercent(self.totals[data.key] * self.options.rows, self.sum, 2) + ')'
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+ '<br>' + subKey + ': ' + Ox.formatNumber(subValue)
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+ ' (' + Ox.formatPercent(subValue, self.totals[data.key], 2) + ')'
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*/
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tooltip: Ox.formatNumber(self.totals[data.key])
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+ ' (' + Ox.formatPercent(self.totals[data.key] * self.options.rows, self.sum, 2) + ')'
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})
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.css({
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float: 'left',
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width: widths[subKey] + 'px',
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height: '14px',
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borderTopLeftRadius: i == 0 ? '4px' : 0,
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borderBottomLeftRadius: i == 0 ? '4px' : 0,
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borderTopRightRadius: i == len - 1 ? '4px' : 0,
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borderBottomRightRadius: i == len - 1 ? '4px' : 0
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})
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.appendTo($element);
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colors[i] = subKey == '' ? [128, 128, 128]
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: Ox.isArray(self.options.color)
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? self.options.color[subKeyIndex % self.options.color.length]
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: Ox.isObject(self.options.color)
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? self.options.color[subKey]
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: self.options.color(subKey);
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}
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});
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}
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$bars.forEach(function($bar, i) {
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/*
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if (self.options.rows == 2) {
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colors[i] = colors[i].map(function(v) {
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return v + (self.row % 2 == 0 ? 16 : -16);
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});
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}
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*/
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['moz', 'o', 'webkit'].forEach(function(browser) {
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$bar.css({
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backgroundImage: '-' + browser
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+ '-linear-gradient(top, rgb(' + colors[i].map(function(v) {
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return Ox.limit(v + 16, 0, 255);
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}).join(', ') + '), rgb(' + colors[i].map(function(v) {
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return Ox.limit(v - 16, 0, 255);
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}) + '))'
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});
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});
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});
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if (self.options.rows == 2) {
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self.row++;
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}
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return $element;
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}
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self.setOption = function(key, value) {
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if (key == 'width') {
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self.$chart.empty();
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renderChart();
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}
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}
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return that;
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};
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