| |
| nv.models.discreteBarChart = function() { |
| "use strict"; |
| //============================================================ |
| // Public Variables with Default Settings |
| //------------------------------------------------------------ |
| |
| var discretebar = nv.models.discreteBar() |
| , xAxis = nv.models.axis() |
| , yAxis = nv.models.axis() |
| ; |
| |
| var margin = {top: 15, right: 10, bottom: 50, left: 60} |
| , width = null |
| , height = null |
| , color = nv.utils.getColor() |
| , showXAxis = true |
| , showYAxis = true |
| , rightAlignYAxis = false |
| , staggerLabels = false |
| , tooltips = true |
| , tooltip = function(key, x, y, e, graph) { |
| return '<h3>' + x + '</h3>' + |
| '<p>' + y + '</p>' |
| } |
| , x |
| , y |
| , noData = "No Data Available." |
| , dispatch = d3.dispatch('tooltipShow', 'tooltipHide', 'beforeUpdate') |
| , transitionDuration = 250 |
| ; |
| |
| xAxis |
| .orient('bottom') |
| .highlightZero(false) |
| .showMaxMin(false) |
| .tickFormat(function(d) { return d }) |
| ; |
| yAxis |
| .orient((rightAlignYAxis) ? 'right' : 'left') |
| .tickFormat(d3.format(',.1f')) |
| ; |
| |
| //============================================================ |
| |
| |
| //============================================================ |
| // Private Variables |
| //------------------------------------------------------------ |
| |
| var showTooltip = function(e, offsetElement) { |
| var left = e.pos[0] + ( offsetElement.offsetLeft || 0 ), |
| top = e.pos[1] + ( offsetElement.offsetTop || 0), |
| x = xAxis.tickFormat()(discretebar.x()(e.point, e.pointIndex)), |
| y = yAxis.tickFormat()(discretebar.y()(e.point, e.pointIndex)), |
| content = tooltip(e.series.key, x, 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() { |
| dispatch.beforeUpdate(); |
| container.transition().duration(transitionDuration).call(chart); |
| }; |
| chart.container = this; |
| |
| |
| //------------------------------------------------------------ |
| // Display No Data message if there's nothing to show. |
| |
| if (!data || !data.length || !data.filter(function(d) { return d.values.length }).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 Scales |
| |
| x = discretebar.xScale(); |
| y = discretebar.yScale().clamp(true); |
| |
| //------------------------------------------------------------ |
| |
| |
| //------------------------------------------------------------ |
| // Setup containers and skeleton of chart |
| |
| var wrap = container.selectAll('g.nv-wrap.nv-discreteBarWithAxes').data([data]); |
| var gEnter = wrap.enter().append('g').attr('class', 'nvd3 nv-wrap nv-discreteBarWithAxes').append('g'); |
| var defsEnter = gEnter.append('defs'); |
| var g = wrap.select('g'); |
| |
| gEnter.append('g').attr('class', 'nv-x nv-axis'); |
| gEnter.append('g').attr('class', 'nv-y nv-axis') |
| .append('g').attr('class', 'nv-zeroLine') |
| .append('line'); |
| |
| gEnter.append('g').attr('class', 'nv-barsWrap'); |
| |
| g.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')'); |
| |
| if (rightAlignYAxis) { |
| g.select(".nv-y.nv-axis") |
| .attr("transform", "translate(" + availableWidth + ",0)"); |
| } |
| |
| //------------------------------------------------------------ |
| |
| |
| //------------------------------------------------------------ |
| // Main Chart Component(s) |
| |
| discretebar |
| .width(availableWidth) |
| .height(availableHeight); |
| |
| |
| var barsWrap = g.select('.nv-barsWrap') |
| .datum(data.filter(function(d) { return !d.disabled })) |
| |
| barsWrap.transition().call(discretebar); |
| |
| //------------------------------------------------------------ |
| |
| |
| |
| defsEnter.append('clipPath') |
| .attr('id', 'nv-x-label-clip-' + discretebar.id()) |
| .append('rect'); |
| |
| g.select('#nv-x-label-clip-' + discretebar.id() + ' rect') |
| .attr('width', x.rangeBand() * (staggerLabels ? 2 : 1)) |
| .attr('height', 16) |
| .attr('x', -x.rangeBand() / (staggerLabels ? 1 : 2 )); |
| |
| |
| //------------------------------------------------------------ |
| // Setup Axes |
| |
| if (showXAxis) { |
| xAxis |
| .scale(x) |
| .ticks( availableWidth / 100 ) |
| .tickSize(-availableHeight, 0); |
| |
| g.select('.nv-x.nv-axis') |
| .attr('transform', 'translate(0,' + (y.range()[0] + ((discretebar.showValues() && y.domain()[0] < 0) ? 16 : 0)) + ')'); |
| //d3.transition(g.select('.nv-x.nv-axis')) |
| g.select('.nv-x.nv-axis').transition() |
| .call(xAxis); |
| |
| |
| var xTicks = g.select('.nv-x.nv-axis').selectAll('g'); |
| |
| if (staggerLabels) { |
| xTicks |
| .selectAll('text') |
| .attr('transform', function(d,i,j) { return 'translate(0,' + (j % 2 == 0 ? '5' : '17') + ')' }) |
| } |
| } |
| |
| if (showYAxis) { |
| yAxis |
| .scale(y) |
| .ticks( availableHeight / 36 ) |
| .tickSize( -availableWidth, 0); |
| |
| g.select('.nv-y.nv-axis').transition() |
| .call(yAxis); |
| } |
| |
| // Zero line |
| g.select(".nv-zeroLine line") |
| .attr("x1",0) |
| .attr("x2",availableWidth) |
| .attr("y1", y(0)) |
| .attr("y2", y(0)) |
| ; |
| |
| //------------------------------------------------------------ |
| |
| |
| //============================================================ |
| // Event Handling/Dispatching (in chart's scope) |
| //------------------------------------------------------------ |
| |
| dispatch.on('tooltipShow', function(e) { |
| if (tooltips) showTooltip(e, that.parentNode); |
| }); |
| |
| //============================================================ |
| |
| |
| }); |
| |
| return chart; |
| } |
| |
| //============================================================ |
| // Event Handling/Dispatching (out of chart's scope) |
| //------------------------------------------------------------ |
| |
| discretebar.dispatch.on('elementMouseover.tooltip', function(e) { |
| e.pos = [e.pos[0] + margin.left, e.pos[1] + margin.top]; |
| dispatch.tooltipShow(e); |
| }); |
| |
| discretebar.dispatch.on('elementMouseout.tooltip', function(e) { |
| dispatch.tooltipHide(e); |
| }); |
| |
| dispatch.on('tooltipHide', function() { |
| if (tooltips) nv.tooltip.cleanup(); |
| }); |
| |
| //============================================================ |
| |
| |
| //============================================================ |
| // Expose Public Variables |
| //------------------------------------------------------------ |
| |
| // expose chart's sub-components |
| chart.dispatch = dispatch; |
| chart.discretebar = discretebar; |
| chart.xAxis = xAxis; |
| chart.yAxis = yAxis; |
| |
| d3.rebind(chart, discretebar, 'x', 'y', 'xDomain', 'yDomain', 'xRange', 'yRange', 'forceX', 'forceY', 'id', 'showValues', 'valueFormat'); |
| |
| 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(_); |
| discretebar.color(color); |
| return chart; |
| }; |
| |
| chart.showXAxis = function(_) { |
| if (!arguments.length) return showXAxis; |
| showXAxis = _; |
| return chart; |
| }; |
| |
| chart.showYAxis = function(_) { |
| if (!arguments.length) return showYAxis; |
| showYAxis = _; |
| return chart; |
| }; |
| |
| chart.rightAlignYAxis = function(_) { |
| if(!arguments.length) return rightAlignYAxis; |
| rightAlignYAxis = _; |
| yAxis.orient( (_) ? 'right' : 'left'); |
| return chart; |
| }; |
| |
| chart.staggerLabels = function(_) { |
| if (!arguments.length) return staggerLabels; |
| staggerLabels = _; |
| 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.noData = function(_) { |
| if (!arguments.length) return noData; |
| noData = _; |
| return chart; |
| }; |
| |
| chart.transitionDuration = function(_) { |
| if (!arguments.length) return transitionDuration; |
| transitionDuration = _; |
| return chart; |
| }; |
| |
| //============================================================ |
| |
| |
| return chart; |
| } |
