656 lines
17 KiB
JavaScript
656 lines
17 KiB
JavaScript
/**
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* Chart type enumerations
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*/
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var ChartType = {
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LINE: 'line',
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SPLINE: 'spline',
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AREA: 'area',
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BAR: 'bar',
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COLUMN: 'column',
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PIE: 'pie',
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TIMELINE: 'timeline',
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SCATTER: 'scatter'
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};
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/**
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* Column type enumeration
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*/
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var ColumnType = {
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STRING: 'string',
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NUMBER: 'number',
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BOOLEAN: 'boolean',
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DATE: 'date'
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};
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/**
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* Abstract chart factory which defines the contract for chart factories
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*/
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var ChartFactory = function () {};
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ChartFactory.prototype = {
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createChart: function () {
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throw new Error('createChart must be implemented by a subclass');
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}
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};
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/**
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* Abstract chart which defines the contract for charts
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*
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* @param elementId
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* id of the div element the chart is drawn in
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*/
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var Chart = function (elementId) {
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this.elementId = elementId;
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};
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Chart.prototype = {
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draw: function () {
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throw new Error('draw must be implemented by a subclass');
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},
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redraw: function () {
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throw new Error('redraw must be implemented by a subclass');
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},
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destroy: function () {
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throw new Error('destroy must be implemented by a subclass');
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},
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toImageString: function () {
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throw new Error('toImageString must be implemented by a subclass');
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}
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};
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/**
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* Abstract representation of charts that operates on DataTable where,<br>
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* <ul>
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* <li>First column provides index to the data.</li>
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* <li>Each subsequent columns are of type
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* <code>ColumnType.NUMBER<code> and represents a data series.</li>
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* </ul>
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* Line chart, area chart, bar chart, column chart are typical examples.
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*
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* @param elementId
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* id of the div element the chart is drawn in
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*/
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var BaseChart = function (elementId) {
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Chart.call(this, elementId);
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};
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BaseChart.prototype = new Chart();
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BaseChart.prototype.constructor = BaseChart;
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BaseChart.prototype.validateColumns = function (dataTable) {
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var columns = dataTable.getColumns();
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if (columns.length < 2) {
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throw new Error('Minimum of two columns are required for this chart');
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}
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for (var i = 1; i < columns.length; i++) {
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if (columns[i].type !== ColumnType.NUMBER) {
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throw new Error('Column ' + (i + 1) + ' should be of type \'Number\'');
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}
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}
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return true;
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};
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/**
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* Abstract pie chart
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*
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* @param elementId
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* id of the div element the chart is drawn in
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*/
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var PieChart = function (elementId) {
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BaseChart.call(this, elementId);
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};
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PieChart.prototype = new BaseChart();
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PieChart.prototype.constructor = PieChart;
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PieChart.prototype.validateColumns = function (dataTable) {
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var columns = dataTable.getColumns();
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if (columns.length > 2) {
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throw new Error('Pie charts can draw only one series');
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}
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return BaseChart.prototype.validateColumns.call(this, dataTable);
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};
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/**
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* Abstract timeline chart
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*
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* @param elementId
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* id of the div element the chart is drawn in
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*/
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var TimelineChart = function (elementId) {
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BaseChart.call(this, elementId);
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};
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TimelineChart.prototype = new BaseChart();
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TimelineChart.prototype.constructor = TimelineChart;
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TimelineChart.prototype.validateColumns = function (dataTable) {
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var result = BaseChart.prototype.validateColumns.call(this, dataTable);
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if (result) {
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var columns = dataTable.getColumns();
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if (columns[0].type !== ColumnType.DATE) {
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throw new Error('First column of timeline chart need to be a date column');
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}
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}
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return result;
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};
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/**
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* Abstract scatter chart
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*
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* @param elementId
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* id of the div element the chart is drawn in
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*/
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var ScatterChart = function (elementId) {
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BaseChart.call(this, elementId);
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};
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ScatterChart.prototype = new BaseChart();
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ScatterChart.prototype.constructor = ScatterChart;
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ScatterChart.prototype.validateColumns = function (dataTable) {
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var result = BaseChart.prototype.validateColumns.call(this, dataTable);
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if (result) {
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var columns = dataTable.getColumns();
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if (columns[0].type !== ColumnType.NUMBER) {
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throw new Error('First column of scatter chart need to be a numeric column');
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}
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}
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return result;
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};
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/**
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* The data table contains column information and data for the chart.
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*/
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// eslint-disable-next-line no-unused-vars
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var DataTable = function () {
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var columns = [];
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var data = null;
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this.addColumn = function (type, name) {
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columns.push({
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'type': type,
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'name': name
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});
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};
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this.getColumns = function () {
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return columns;
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};
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this.setData = function (rows) {
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data = rows;
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fillMissingValues();
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};
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this.getData = function () {
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return data;
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};
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var fillMissingValues = function () {
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if (columns.length === 0) {
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throw new Error('Set columns first');
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}
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var row;
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for (var i = 0; i < data.length; i++) {
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row = data[i];
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if (row.length > columns.length) {
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row.splice(columns.length - 1, row.length - columns.length);
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} else if (row.length < columns.length) {
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for (var j = row.length; j < columns.length; j++) {
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row.push(null);
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}
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}
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}
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};
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};
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/** *****************************************************************************
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* JQPlot specific code
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******************************************************************************/
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/**
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* Abstract JQplot chart
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*
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* @param elementId
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* id of the div element the chart is drawn in
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*/
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var JQPlotChart = function (elementId) {
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Chart.call(this, elementId);
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this.plot = null;
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this.validator = null;
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};
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JQPlotChart.prototype = new Chart();
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JQPlotChart.prototype.constructor = JQPlotChart;
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JQPlotChart.prototype.draw = function (data, options) {
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if (this.validator.validateColumns(data)) {
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this.plot = $.jqplot(this.elementId, this.prepareData(data), this.populateOptions(data, options));
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}
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};
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JQPlotChart.prototype.destroy = function () {
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if (this.plot !== null) {
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this.plot.destroy();
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}
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};
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JQPlotChart.prototype.redraw = function (options) {
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if (this.plot !== null) {
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this.plot.replot(options);
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}
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};
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JQPlotChart.prototype.toImageString = function () {
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if (this.plot !== null) {
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return $('#' + this.elementId).jqplotToImageStr({});
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}
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};
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JQPlotChart.prototype.populateOptions = function () {
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throw new Error('populateOptions must be implemented by a subclass');
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};
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JQPlotChart.prototype.prepareData = function () {
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throw new Error('prepareData must be implemented by a subclass');
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};
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/**
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* JQPlot line chart
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*
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* @param elementId
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* id of the div element the chart is drawn in
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*/
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var JQPlotLineChart = function (elementId) {
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JQPlotChart.call(this, elementId);
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this.validator = BaseChart.prototype;
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};
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JQPlotLineChart.prototype = new JQPlotChart();
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JQPlotLineChart.prototype.constructor = JQPlotLineChart;
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JQPlotLineChart.prototype.populateOptions = function (dataTable, options) {
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var columns = dataTable.getColumns();
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var optional = {
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axes: {
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xaxis: {
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label: columns[0].name,
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renderer: $.jqplot.CategoryAxisRenderer,
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ticks: []
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},
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yaxis: {
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label: columns.length === 2 ? columns[1].name : 'Values',
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labelRenderer: $.jqplot.CanvasAxisLabelRenderer
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}
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},
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highlighter: {
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show: true,
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tooltipAxes: 'y',
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formatString: '%d'
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},
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series: []
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};
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$.extend(true, optional, options);
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if (optional.series.length === 0) {
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for (var i = 1; i < columns.length; i++) {
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optional.series.push({
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label: columns[i].name.toString()
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});
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}
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}
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if (optional.axes.xaxis.ticks.length === 0) {
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var data = dataTable.getData();
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for (var j = 0; j < data.length; j++) {
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optional.axes.xaxis.ticks.push(data[j][0].toString());
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}
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}
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return optional;
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};
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JQPlotLineChart.prototype.prepareData = function (dataTable) {
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var data = dataTable.getData();
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var row;
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var retData = [];
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var retRow;
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for (var i = 0; i < data.length; i++) {
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row = data[i];
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for (var j = 1; j < row.length; j++) {
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retRow = retData[j - 1];
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if (retRow === undefined) {
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retRow = [];
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retData[j - 1] = retRow;
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}
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retRow.push(row[j]);
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}
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}
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return retData;
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};
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/**
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* JQPlot spline chart
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*
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* @param elementId
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* id of the div element the chart is drawn in
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*/
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var JQPlotSplineChart = function (elementId) {
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JQPlotLineChart.call(this, elementId);
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};
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JQPlotSplineChart.prototype = new JQPlotLineChart();
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JQPlotSplineChart.prototype.constructor = JQPlotSplineChart;
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JQPlotSplineChart.prototype.populateOptions = function (dataTable, options) {
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var optional = {};
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var opt = JQPlotLineChart.prototype.populateOptions.call(this, dataTable, options);
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var compulsory = {
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seriesDefaults: {
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rendererOptions: {
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smooth: true
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}
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}
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};
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$.extend(true, optional, opt, compulsory);
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return optional;
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};
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/**
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* JQPlot scatter chart
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*
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* @param elementId
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* id of the div element the chart is drawn in
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*/
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var JQPlotScatterChart = function (elementId) {
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JQPlotChart.call(this, elementId);
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this.validator = ScatterChart.prototype;
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};
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JQPlotScatterChart.prototype = new JQPlotChart();
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JQPlotScatterChart.prototype.constructor = JQPlotScatterChart;
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JQPlotScatterChart.prototype.populateOptions = function (dataTable, options) {
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var columns = dataTable.getColumns();
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var optional = {
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axes: {
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xaxis: {
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label: columns[0].name
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},
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yaxis: {
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label: columns.length === 2 ? columns[1].name : 'Values',
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labelRenderer: $.jqplot.CanvasAxisLabelRenderer
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}
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},
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highlighter: {
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show: true,
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tooltipAxes: 'xy',
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formatString: '%d, %d'
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},
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series: []
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};
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for (var i = 1; i < columns.length; i++) {
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optional.series.push({
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label: columns[i].name.toString()
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});
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}
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var compulsory = {
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seriesDefaults: {
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showLine: false,
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markerOptions: {
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size: 7,
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style: 'x'
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}
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}
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};
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$.extend(true, optional, options, compulsory);
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return optional;
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};
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JQPlotScatterChart.prototype.prepareData = function (dataTable) {
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var data = dataTable.getData();
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var row;
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var retData = [];
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var retRow;
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for (var i = 0; i < data.length; i++) {
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row = data[i];
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if (row[0]) {
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for (var j = 1; j < row.length; j++) {
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retRow = retData[j - 1];
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if (retRow === undefined) {
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retRow = [];
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retData[j - 1] = retRow;
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}
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retRow.push([row[0], row[j]]);
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}
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}
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}
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return retData;
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};
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/**
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* JQPlot timeline chart
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*
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* @param elementId
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* id of the div element the chart is drawn in
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*/
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var JQPlotTimelineChart = function (elementId) {
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JQPlotLineChart.call(this, elementId);
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this.validator = TimelineChart.prototype;
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};
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JQPlotTimelineChart.prototype = new JQPlotLineChart();
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JQPlotTimelineChart.prototype.constructor = JQPlotTimelineChart;
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JQPlotTimelineChart.prototype.populateOptions = function (dataTable, options) {
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var optional = {
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axes: {
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xaxis: {
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tickOptions: {
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formatString: '%b %#d, %y'
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}
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}
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}
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};
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var opt = JQPlotLineChart.prototype.populateOptions.call(this, dataTable, options);
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var compulsory = {
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axes: {
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xaxis: {
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renderer: $.jqplot.DateAxisRenderer
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}
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}
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};
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$.extend(true, optional, opt, compulsory);
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return optional;
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};
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JQPlotTimelineChart.prototype.prepareData = function (dataTable) {
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var data = dataTable.getData();
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var row;
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var d;
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var retData = [];
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var retRow;
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for (var i = 0; i < data.length; i++) {
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row = data[i];
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d = row[0];
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for (var j = 1; j < row.length; j++) {
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retRow = retData[j - 1];
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if (retRow === undefined) {
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retRow = [];
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retData[j - 1] = retRow;
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}
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// See https://github.com/phpmyadmin/phpmyadmin/issues/14395 for the block
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if (d !== null && typeof d === 'object') {
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retRow.push([d.getTime(), row[j]]);
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} else if (typeof d === 'string') {
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d = new Date(d);
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retRow.push([d.getTime(), row[j]]);
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}
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}
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}
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return retData;
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};
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/**
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* JQPlot area chart
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*
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* @param elementId
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* id of the div element the chart is drawn in
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*/
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var JQPlotAreaChart = function (elementId) {
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JQPlotLineChart.call(this, elementId);
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};
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JQPlotAreaChart.prototype = new JQPlotLineChart();
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JQPlotAreaChart.prototype.constructor = JQPlotAreaChart;
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JQPlotAreaChart.prototype.populateOptions = function (dataTable, options) {
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var optional = {
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seriesDefaults: {
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fillToZero: true
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}
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};
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var opt = JQPlotLineChart.prototype.populateOptions.call(this, dataTable, options);
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var compulsory = {
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seriesDefaults: {
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fill: true
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}
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};
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$.extend(true, optional, opt, compulsory);
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return optional;
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};
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/**
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* JQPlot column chart
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*
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* @param elementId
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* id of the div element the chart is drawn in
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*/
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var JQPlotColumnChart = function (elementId) {
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JQPlotLineChart.call(this, elementId);
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};
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JQPlotColumnChart.prototype = new JQPlotLineChart();
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JQPlotColumnChart.prototype.constructor = JQPlotColumnChart;
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JQPlotColumnChart.prototype.populateOptions = function (dataTable, options) {
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var optional = {
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seriesDefaults: {
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fillToZero: true
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}
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};
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var opt = JQPlotLineChart.prototype.populateOptions.call(this, dataTable, options);
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var compulsory = {
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seriesDefaults: {
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renderer: $.jqplot.BarRenderer
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}
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};
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$.extend(true, optional, opt, compulsory);
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return optional;
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};
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/**
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* JQPlot bar chart
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*
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* @param elementId
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* id of the div element the chart is drawn in
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*/
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var JQPlotBarChart = function (elementId) {
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JQPlotLineChart.call(this, elementId);
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};
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JQPlotBarChart.prototype = new JQPlotLineChart();
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JQPlotBarChart.prototype.constructor = JQPlotBarChart;
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JQPlotBarChart.prototype.populateOptions = function (dataTable, options) {
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var columns = dataTable.getColumns();
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var optional = {
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axes: {
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yaxis: {
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label: columns[0].name,
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labelRenderer: $.jqplot.CanvasAxisLabelRenderer,
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renderer: $.jqplot.CategoryAxisRenderer,
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ticks: []
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},
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xaxis: {
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label: columns.length === 2 ? columns[1].name : 'Values',
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labelRenderer: $.jqplot.CanvasAxisLabelRenderer
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}
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},
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highlighter: {
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show: true,
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tooltipAxes: 'x',
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formatString: '%d'
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},
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series: [],
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seriesDefaults: {
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fillToZero: true
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}
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};
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var compulsory = {
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seriesDefaults: {
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renderer: $.jqplot.BarRenderer,
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rendererOptions: {
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barDirection: 'horizontal'
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}
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}
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};
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$.extend(true, optional, options, compulsory);
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if (optional.axes.yaxis.ticks.length === 0) {
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var data = dataTable.getData();
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for (var i = 0; i < data.length; i++) {
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optional.axes.yaxis.ticks.push(data[i][0].toString());
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}
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}
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if (optional.series.length === 0) {
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|
for (var j = 1; j < columns.length; j++) {
|
|
optional.series.push({
|
|
label: columns[j].name.toString()
|
|
});
|
|
}
|
|
}
|
|
return optional;
|
|
};
|
|
|
|
/**
|
|
* JQPlot pie chart
|
|
*
|
|
* @param elementId
|
|
* id of the div element the chart is drawn in
|
|
*/
|
|
var JQPlotPieChart = function (elementId) {
|
|
JQPlotChart.call(this, elementId);
|
|
this.validator = PieChart.prototype;
|
|
};
|
|
JQPlotPieChart.prototype = new JQPlotChart();
|
|
JQPlotPieChart.prototype.constructor = JQPlotPieChart;
|
|
JQPlotPieChart.prototype.populateOptions = function (dataTable, options) {
|
|
var optional = {
|
|
highlighter: {
|
|
show: true,
|
|
tooltipAxes: 'xy',
|
|
formatString: '%s, %d',
|
|
useAxesFormatters: false
|
|
},
|
|
legend: {
|
|
renderer: $.jqplot.EnhancedPieLegendRenderer
|
|
}
|
|
};
|
|
var compulsory = {
|
|
seriesDefaults: {
|
|
shadow: false,
|
|
renderer: $.jqplot.PieRenderer,
|
|
rendererOptions: {
|
|
sliceMargin: 1,
|
|
showDataLabels: true
|
|
}
|
|
}
|
|
};
|
|
$.extend(true, optional, options, compulsory);
|
|
return optional;
|
|
};
|
|
JQPlotPieChart.prototype.prepareData = function (dataTable) {
|
|
var data = dataTable.getData();
|
|
var row;
|
|
var retData = [];
|
|
for (var i = 0; i < data.length; i++) {
|
|
row = data[i];
|
|
retData.push([row[0], row[1]]);
|
|
}
|
|
return [retData];
|
|
};
|
|
|
|
/**
|
|
* Chart factory that returns JQPlotCharts
|
|
*/
|
|
var JQPlotChartFactory = function () {};
|
|
JQPlotChartFactory.prototype = new ChartFactory();
|
|
JQPlotChartFactory.prototype.createChart = function (type, elementId) {
|
|
var chart = null;
|
|
switch (type) {
|
|
case ChartType.LINE:
|
|
chart = new JQPlotLineChart(elementId);
|
|
break;
|
|
case ChartType.SPLINE:
|
|
chart = new JQPlotSplineChart(elementId);
|
|
break;
|
|
case ChartType.TIMELINE:
|
|
chart = new JQPlotTimelineChart(elementId);
|
|
break;
|
|
case ChartType.AREA:
|
|
chart = new JQPlotAreaChart(elementId);
|
|
break;
|
|
case ChartType.BAR:
|
|
chart = new JQPlotBarChart(elementId);
|
|
break;
|
|
case ChartType.COLUMN:
|
|
chart = new JQPlotColumnChart(elementId);
|
|
break;
|
|
case ChartType.PIE:
|
|
chart = new JQPlotPieChart(elementId);
|
|
break;
|
|
case ChartType.SCATTER:
|
|
chart = new JQPlotScatterChart(elementId);
|
|
break;
|
|
}
|
|
return chart;
|
|
}; |