X-Git-Url: https://adrianiainlam.tk/git/?a=blobdiff_plain;f=plugins%2Faxes.js;h=cacda86e8d414e100144729a3ba4b1283f4622d7;hb=e3a1d6944b1474e507e99a5f497d506ae3de2120;hp=2e1834c8ecd8560cf0973e504116cd99da9b9cf4;hpb=7ff98630ca7cc2760e2115ad2372053184d3e717;p=dygraphs.git diff --git a/plugins/axes.js b/plugins/axes.js index 2e1834c..cacda86 100644 --- a/plugins/axes.js +++ b/plugins/axes.js @@ -4,17 +4,27 @@ * MIT-licensed (http://opensource.org/licenses/MIT) */ +/*global Dygraph:false */ + Dygraph.Plugins.Axes = (function() { "use strict"; /* - Bits of jankiness: - Direct layout access - Direct area access - Should include calculation of ticks, not just the drawing. +Options left to make axis-friendly. + ('axisTickSize') + ('drawAxesAtZero') + ('xAxisHeight') + +These too. What is the difference between axisLablelWidth and {x,y}AxisLabelWidth? + ('axisLabelWidth') + ('xAxisLabelWidth') + ('yAxisLabelWidth') */ /** @@ -44,23 +54,29 @@ axes.prototype.layout = function(e) { if (g.getOption('drawYAxis')) { var w = g.getOption('yAxisLabelWidth') + 2 * g.getOption('axisTickSize'); - var y_axis_rect = e.reserveSpaceLeft(w); + e.reserveSpaceLeft(w); } if (g.getOption('drawXAxis')) { var h; + // NOTE: I think this is probably broken now, since g.getOption() now + // hits the dictionary. (That is, g.getOption('xAxisHeight') now always + // has a value.) if (g.getOption('xAxisHeight')) { h = g.getOption('xAxisHeight'); } else { h = g.getOptionForAxis('axisLabelFontSize', 'x') + 2 * g.getOption('axisTickSize'); } - var x_axis_rect = e.reserveSpaceBottom(h); + e.reserveSpaceBottom(h); } if (g.numAxes() == 2) { - // TODO(danvk): per-axis setting. - var w = g.getOption('yAxisLabelWidth') + 2 * g.getOption('axisTickSize'); - var y2_axis_rect = e.reserveSpaceRight(w); + // TODO(danvk): introduce a 'drawAxis' per-axis property. + if (g.getOption('drawYAxis')) { + // TODO(danvk): per-axis setting. + var w = g.getOption('yAxisLabelWidth') + 2 * g.getOption('axisTickSize'); + e.reserveSpaceRight(w); + } } else if (g.numAxes() > 2) { g.error("Only two y-axes are supported at this time. (Trying " + "to use " + g.numAxes() + ")"); @@ -82,7 +98,6 @@ axes.prototype.detachLabels = function() { }; axes.prototype.clearChart = function(e) { - var g = e.dygraph; this.detachLabels(); }; @@ -112,17 +127,17 @@ axes.prototype.willDrawChart = function(e) { lineHeight: "normal", // Something other than "normal" line-height screws up label positioning. overflow: "hidden" }; - } + }; var labelStyles = { x : makeLabelStyle('x'), y : makeLabelStyle('y'), - y2 : makeLabelStyle('y2'), + y2 : makeLabelStyle('y2') }; var makeDiv = function(txt, axis, prec_axis) { /* - * This seems to be called with the following three sets of axis/perc_axis: + * This seems to be called with the following three sets of axis/prec_axis: * x: undefined * y: y1 * y: y2 @@ -145,8 +160,6 @@ axes.prototype.willDrawChart = function(e) { // axis lines context.save(); - context.strokeStyle = g.getOption('axisLineColor'); - context.lineWidth = g.getOption('axisLineWidth'); var layout = g.layout_; var area = e.dygraph.plotter_.area; @@ -215,11 +228,15 @@ axes.prototype.willDrawChart = function(e) { var axisX; if (g.getOption('drawAxesAtZero')) { var r = g.toPercentXCoord(0); - if (r > 1 || r < 0) r = 0; + if (r > 1 || r < 0 || isNaN(r)) r = 0; axisX = halfUp(area.x + r * area.w); } else { axisX = halfUp(area.x); } + + context.strokeStyle = g.getOptionForAxis('axisLineColor', 'y'); + context.lineWidth = g.getOptionForAxis('axisLineWidth', 'y'); + context.beginPath(); context.moveTo(axisX, halfDown(area.y)); context.lineTo(axisX, halfDown(area.y + area.h)); @@ -228,6 +245,8 @@ axes.prototype.willDrawChart = function(e) { // if there's a secondary y-axis, draw a vertical line for that, too. if (g.numAxes() == 2) { + context.strokeStyle = g.getOptionForAxis('axisLineColor', 'y2'); + context.lineWidth = g.getOptionForAxis('axisLineWidth', 'y2'); context.beginPath(); context.moveTo(halfDown(area.x + area.w), halfDown(area.y)); context.lineTo(halfDown(area.x + area.w), halfDown(area.y + area.h)); @@ -272,6 +291,8 @@ axes.prototype.willDrawChart = function(e) { } } + context.strokeStyle = g.getOptionForAxis('axisLineColor', 'x'); + context.lineWidth = g.getOptionForAxis('axisLineWidth', 'x'); context.beginPath(); var axisY; if (g.getOption('drawAxesAtZero')) {