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- // Licensed to Cloudera, Inc. under one
- // or more contributor license agreements. See the NOTICE file
- // distributed with this work for additional information
- // regarding copyright ownership. Cloudera, Inc. licenses this file
- // to you under the Apache License, Version 2.0 (the
- // "License"); you may not use this file except in compliance
- // with the License. You may obtain a copy of the License at
- //
- // http://www.apache.org/licenses/LICENSE-2.0
- //
- // Unless required by applicable law or agreed to in writing, software
- // distributed under the License is distributed on an "AS IS" BASIS,
- // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- // See the License for the specific language governing permissions and
- // limitations under the License.
- nv.models.growingPieChart = function() {
- "use strict";
- //============================================================
- // Public Variables with Default Settings
- //------------------------------------------------------------
- var pie = nv.models.growingPie()
- , legend = nv.models.legend()
- ;
- var margin = {top: 30, right: 20, bottom: 20, left: 20}
- , width = null
- , height = null
- , showLegend = true
- , color = nv.utils.defaultColor()
- , tooltips = true
- , tooltip = function(key, y, e, graph) {
- return '<h3>' + key + '</h3>' +
- '<p>' + y + '</p>'
- }
- , state = {}
- , defaultState = null
- , noData = "No Data Available."
- , selectSlices = null
- , dispatch = d3.dispatch('tooltipShow', 'tooltipHide', 'stateChange', 'changeState')
- ;
- //============================================================
- //============================================================
- // Private Variables
- //------------------------------------------------------------
- var showTooltip = function(e, offsetElement) {
- var tooltipLabel = pie.description()(e.point) || pie.x()(e.point)
- var left = e.pos[0] + ( (offsetElement && offsetElement.offsetLeft) || 0 ),
- top = e.pos[1] + ( (offsetElement && offsetElement.offsetTop) || 0),
- y = pie.valueFormat()(pie.y()(e.point)),
- content = tooltip(tooltipLabel, y, e, chart);
- nv.tooltip.show([left, top], content, e.value < 0 ? 'n' : 's', null, offsetElement);
- };
- //============================================================
- function chart(selection) {
- selection.each(function(data) {
- var container = d3.select(this),
- that = this;
- var availableWidth = (width || parseInt(container.style('width')) || 960)
- - margin.left - margin.right,
- availableHeight = (height || parseInt(container.style('height')) || 400)
- - margin.top - margin.bottom;
- chart.update = function() { container.transition().call(chart); };
- chart.container = this;
- //set state.disabled
- state.disabled = data.map(function(d) { return !!d.disabled });
- if (!defaultState) {
- var key;
- defaultState = {};
- for (key in state) {
- if (state[key] instanceof Array)
- defaultState[key] = state[key].slice(0);
- else
- defaultState[key] = state[key];
- }
- }
- //------------------------------------------------------------
- // Display No Data message if there's nothing to show.
- if (!data || !data.length) {
- var noDataText = container.selectAll('.nv-noData').data([noData]);
- noDataText.enter().append('text')
- .attr('class', 'nvd3 nv-noData')
- .attr('dy', '-.7em')
- .style('text-anchor', 'middle');
- noDataText
- .attr('x', margin.left + availableWidth / 2)
- .attr('y', margin.top + availableHeight / 2)
- .text(function(d) { return d });
- return chart;
- } else {
- container.selectAll('.nv-noData').remove();
- }
- //------------------------------------------------------------
- //------------------------------------------------------------
- // Setup containers and skeleton of chart
- var wrap = container.selectAll('g.nv-wrap.nv-pieChart').data([data]);
- var gEnter = wrap.enter().append('g').attr('class', 'nvd3 nv-wrap nv-pieChart').append('g');
- var g = wrap.select('g');
- gEnter.append('g').attr('class', 'nv-pieWrap');
- gEnter.append('g').attr('class', 'nv-legendWrap');
- //------------------------------------------------------------
- //------------------------------------------------------------
- // Legend
- if (showLegend) {
- legend
- .width( availableWidth )
- .key(pie.x());
- wrap.select('.nv-legendWrap')
- .datum(data)
- .call(legend);
- if ( margin.top != legend.height()) {
- margin.top = legend.height();
- availableHeight = (height || parseInt(container.style('height')) || 400)
- - margin.top - margin.bottom;
- }
- wrap.select('.nv-legendWrap')
- .attr('transform', 'translate(0,' + (-margin.top) +')');
- }
- //------------------------------------------------------------
- wrap.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
- //------------------------------------------------------------
- // Main Chart Component(s)
- pie
- .width(availableWidth)
- .height(availableHeight);
- var pieWrap = g.select('.nv-pieWrap')
- .datum([data]);
- selectSlices = pie.selectSlices;
- d3.transition(pieWrap).call(pie);
- //------------------------------------------------------------
- //============================================================
- // Event Handling/Dispatching (in chart's scope)
- //------------------------------------------------------------
- legend.dispatch.on('stateChange', function(newState) {
- state = newState;
- dispatch.stateChange(state);
- chart.update();
- });
- pie.dispatch.on('elementMouseout.tooltip', function(e) {
- dispatch.tooltipHide(e);
- });
- // Update chart from a state object passed to event handler
- dispatch.on('changeState', function(e) {
- if (typeof e.disabled !== 'undefined') {
- data.forEach(function(series,i) {
- series.disabled = e.disabled[i];
- });
- state.disabled = e.disabled;
- }
- chart.update();
- });
- //============================================================
- });
- return chart;
- }
- //============================================================
- // Event Handling/Dispatching (out of chart's scope)
- //------------------------------------------------------------
- pie.dispatch.on('elementMouseover.tooltip', function(e) {
- e.pos = [e.pos[0] + margin.left, e.pos[1] + margin.top];
- dispatch.tooltipShow(e);
- });
- dispatch.on('tooltipShow', function(e) {
- if (tooltips) showTooltip(e);
- });
- dispatch.on('tooltipHide', function() {
- if (tooltips) nv.tooltip.cleanup();
- });
- //============================================================
- //============================================================
- // Expose Public Variables
- //------------------------------------------------------------
- // expose chart's sub-components
- chart.legend = legend;
- chart.dispatch = dispatch;
- chart.pie = pie;
- d3.rebind(chart, pie, 'valueFormat', 'values', 'x', 'y', 'description', 'id', 'showLabels', 'donutLabelsOutside', 'pieLabelsOutside', 'labelType', 'donut', 'donutRatio', 'labelThreshold');
- chart.options = nv.utils.optionsFunc.bind(chart);
- chart.margin = function(_) {
- if (!arguments.length) return margin;
- margin.top = typeof _.top != 'undefined' ? _.top : margin.top;
- margin.right = typeof _.right != 'undefined' ? _.right : margin.right;
- margin.bottom = typeof _.bottom != 'undefined' ? _.bottom : margin.bottom;
- margin.left = typeof _.left != 'undefined' ? _.left : margin.left;
- return chart;
- };
- chart.width = function(_) {
- if (!arguments.length) return width;
- width = _;
- return chart;
- };
- chart.height = function(_) {
- if (!arguments.length) return height;
- height = _;
- return chart;
- };
- chart.color = function(_) {
- if (!arguments.length) return color;
- color = nv.utils.getColor(_);
- legend.color(color);
- pie.color(color);
- return chart;
- };
- chart.showLegend = function(_) {
- if (!arguments.length) return showLegend;
- showLegend = _;
- return chart;
- };
- chart.tooltips = function(_) {
- if (!arguments.length) return tooltips;
- tooltips = _;
- return chart;
- };
- chart.tooltipContent = function(_) {
- if (!arguments.length) return tooltip;
- tooltip = _;
- return chart;
- };
- chart.state = function(_) {
- if (!arguments.length) return state;
- state = _;
- return chart;
- };
- chart.defaultState = function(_) {
- if (!arguments.length) return defaultState;
- defaultState = _;
- return chart;
- };
- chart.noData = function(_) {
- if (!arguments.length) return noData;
- noData = _;
- return chart;
- };
- chart.selectSlices = function(args) {
- if (!arguments.length) return selectSlices;
- selectSlices(args);
- return chart;
- };
- //============================================================
- return chart;
- }
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