--- a/web/data/jquery.flot.js Thu Oct 23 11:42:20 2014 +0200
+++ b/web/data/jquery.flot.js Tue Oct 21 18:01:06 2014 +0200
@@ -1,1 +1,2119 @@
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AT=Ae[Ad],AS=Ae[Ad+1],Ai=Ae[Ad+2];if(AT==null){continue}if(O[Af].bars.horizontal?(AZ<=Math.max(Ai,AT)&&AZ>=Math.min(Ai,AT)&&AW>=AS+AN&&AW<=AS+Ag):(AZ>=AT+AN&&AZ<=AT+Ag&&AW>=Math.min(Ai,AS)&&AW<=Math.max(Ai,AS))){Ah=[Af,Ad/Ac]}}}}if(Ah){Af=Ah[0];Ad=Ah[1];Ac=O[Af].datapoints.pointsize;return{datapoint:O[Af].datapoints.points.slice(Ad*Ac,(Ad+1)*Ac),dataIndex:Ad,series:O[Af],seriesIndex:Af}}return null}function D(AK){if(g.grid.hoverable){H("plothover",AK,function(AL){return AL.hoverable!=false})}}function d(AK){H("plotclick",AK,function(AL){return AL.clickable!=false})}function H(AL,AK,AM){var AN=AD.offset(),AS={pageX:AK.pageX,pageY:AK.pageY},AQ=AK.pageX-AN.left-e.left,AO=AK.pageY-AN.top-e.top;if(s.xaxis.used){AS.x=s.xaxis.c2p(AQ)}if(s.yaxis.used){AS.y=s.yaxis.c2p(AO)}if(s.x2axis.used){AS.x2=s.x2axis.c2p(AQ)}if(s.y2axis.used){AS.y2=s.y2axis.c2p(AO)}var AT=AF(AQ,AO,AM);if(AT){AT.pageX=parseInt(AT.series.xaxis.p2c(AT.datapoint[0])+AN.left+e.left);AT.pageY=parseInt(AT.series.yaxis.p2c(AT.datapoint[1])+AN.top+e.top)}if(g.grid.autoHighlight){for(var AP=0;AP<w.length;++AP){var AR=w[AP];if(AR.auto==AL&&!(AT&&AR.series==AT.series&&AR.point==AT.datapoint)){x(AR.series,AR.point)}}if(AT){AE(AT.series,AT.datapoint,AL)}}l.trigger(AL,[AS,AT])}function q(){if(!J){J=setTimeout(v,30)}}function v(){J=null;AJ.save();AJ.clearRect(0,0,y,Q);AJ.translate(e.left,e.top);var AL,AK;for(AL=0;AL<w.length;++AL){AK=w[AL];if(AK.series.bars.show){z(AK.series,AK.point)}else{u(AK.series,AK.point)}}AJ.restore();Z(L.drawOverlay,[AJ])}function AE(AM,AK,AN){if(typeof AM=="number"){AM=O[AM]}if(typeof AK=="number"){AK=AM.data[AK]}var AL=j(AM,AK);if(AL==-1){w.push({series:AM,point:AK,auto:AN});q()}else{if(!AN){w[AL].auto=false}}}function x(AM,AK){if(AM==null&&AK==null){w=[];q()}if(typeof AM=="number"){AM=O[AM]}if(typeof AK=="number"){AK=AM.data[AK]}var AL=j(AM,AK);if(AL!=-1){w.splice(AL,1);q()}}function j(AM,AN){for(var AK=0;AK<w.length;++AK){var AL=w[AK];if(AL.series==AM&&AL.point[0]==AN[0]&&AL.point[1]==AN[1]){return AK}}return -1}function u(AN,AM){var AL=AM[0],AR=AM[1],AQ=AN.xaxis,AP=AN.yaxis;if(AL<AQ.min||AL>AQ.max||AR<AP.min||AR>AP.max){return }var AO=AN.points.radius+AN.points.lineWidth/2;AJ.lineWidth=AO;AJ.strokeStyle=C.color.parse(AN.color).scale("a",0.5).toString();var AK=1.5*AO;AJ.beginPath();AJ.arc(AQ.p2c(AL),AP.p2c(AR),AK,0,2*Math.PI,false);AJ.stroke()}function z(AN,AK){AJ.lineWidth=AN.bars.lineWidth;AJ.strokeStyle=C.color.parse(AN.color).scale("a",0.5).toString();var AM=C.color.parse(AN.color).scale("a",0.5).toString();var AL=AN.bars.align=="left"?0:-AN.bars.barWidth/2;AB(AK[0],AK[1],AK[2]||0,AL,AL+AN.bars.barWidth,0,function(){return AM},AN.xaxis,AN.yaxis,AJ,AN.bars.horizontal)}function R(AM,AL,AQ,AO){if(typeof AM=="string"){return AM}else{var AP=Y.createLinearGradient(0,AQ,0,AL);for(var AN=0,AK=AM.colors.length;AN<AK;++AN){var AR=AM.colors[AN];if(typeof AR!="string"){AR=C.color.parse(AO).scale("rgb",AR.brightness);AR.a*=AR.opacity;AR=AR.toString()}AP.addColorStop(AN/(AK-1),AR)}return AP}}}C.plot=function(G,E,D){var F=new B(C(G),E,D,C.plot.plugins);return F};C.plot.plugins=[];C.plot.formatDate=function(H,E,G){var L=function(N){N=""+N;return N.length==1?"0"+N:N};var D=[];var M=false;var K=H.getUTCHours();var I=K<12;if(G==null){G=["Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"]}if(E.search(/%p|%P/)!=-1){if(K>12){K=K-12}else{if(K==0){K=12}}}for(var F=0;F<E.length;++F){var J=E.charAt(F);if(M){switch(J){case"h":J=""+K;break;case"H":J=L(K);break;case"M":J=L(H.getUTCMinutes());break;case"S":J=L(H.getUTCSeconds());break;case"d":J=""+H.getUTCDate();break;case"m":J=""+(H.getUTCMonth()+1);break;case"y":J=""+H.getUTCFullYear();break;case"b":J=""+G[H.getUTCMonth()];break;case"p":J=(I)?("am"):("pm");break;case"P":J=(I)?("AM"):("PM");break}D.push(J);M=false}else{if(J=="%"){M=true}else{D.push(J)}}}return D.join("")};function A(E,D){return D*Math.floor(E/D)}})(jQuery);
+/* Javascript plotting library for jQuery, v. 0.6.
+ *
+ * Released under the MIT license by IOLA, December 2007.
+ *
+ */
+
+// first an inline dependency, jquery.colorhelpers.js, we inline it here
+// for convenience
+
+/* Plugin for jQuery for working with colors.
+ *
+ * Version 1.0.
+ *
+ * Inspiration from jQuery color animation plugin by John Resig.
+ *
+ * Released under the MIT license by Ole Laursen, October 2009.
+ *
+ * Examples:
+ *
+ * $.color.parse("#fff").scale('rgb', 0.25).add('a', -0.5).toString()
+ * var c = $.color.extract($("#mydiv"), 'background-color');
+ * console.log(c.r, c.g, c.b, c.a);
+ * $.color.make(100, 50, 25, 0.4).toString() // returns "rgba(100,50,25,0.4)"
+ *
+ * Note that .scale() and .add() work in-place instead of returning
+ * new objects.
+ */
+(function(){jQuery.color={};jQuery.color.make=function(E,D,B,C){var F={};F.r=E||0;F.g=D||0;F.b=B||0;F.a=C!=null?C:1;F.add=function(I,H){for(var G=0;G<I.length;++G){F[I.charAt(G)]+=H}return F.normalize()};F.scale=function(I,H){for(var G=0;G<I.length;++G){F[I.charAt(G)]*=H}return F.normalize()};F.toString=function(){if(F.a>=1){return"rgb("+[F.r,F.g,F.b].join(",")+")"}else{return"rgba("+[F.r,F.g,F.b,F.a].join(",")+")"}};F.normalize=function(){function G(I,J,H){return J<I?I:(J>H?H:J)}F.r=G(0,parseInt(F.r),255);F.g=G(0,parseInt(F.g),255);F.b=G(0,parseInt(F.b),255);F.a=G(0,F.a,1);return F};F.clone=function(){return jQuery.color.make(F.r,F.b,F.g,F.a)};return F.normalize()};jQuery.color.extract=function(C,B){var D;do{D=C.css(B).toLowerCase();if(D!=""&&D!="transparent"){break}C=C.parent()}while(!jQuery.nodeName(C.get(0),"body"));if(D=="rgba(0, 0, 0, 0)"){D="transparent"}return jQuery.color.parse(D)};jQuery.color.parse=function(E){var D,B=jQuery.color.make;if(D=/rgb\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*\)/.exec(E)){return B(parseInt(D[1],10),parseInt(D[2],10),parseInt(D[3],10))}if(D=/rgba\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]+(?:\.[0-9]+)?)\s*\)/.exec(E)){return B(parseInt(D[1],10),parseInt(D[2],10),parseInt(D[3],10),parseFloat(D[4]))}if(D=/rgb\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*\)/.exec(E)){return B(parseFloat(D[1])*2.55,parseFloat(D[2])*2.55,parseFloat(D[3])*2.55)}if(D=/rgba\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\s*\)/.exec(E)){return B(parseFloat(D[1])*2.55,parseFloat(D[2])*2.55,parseFloat(D[3])*2.55,parseFloat(D[4]))}if(D=/#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})/.exec(E)){return B(parseInt(D[1],16),parseInt(D[2],16),parseInt(D[3],16))}if(D=/#([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])/.exec(E)){return B(parseInt(D[1]+D[1],16),parseInt(D[2]+D[2],16),parseInt(D[3]+D[3],16))}var C=jQuery.trim(E).toLowerCase();if(C=="transparent"){return B(255,255,255,0)}else{D=A[C];return B(D[0],D[1],D[2])}};var A={aqua:[0,255,255],azure:[240,255,255],beige:[245,245,220],black:[0,0,0],blue:[0,0,255],brown:[165,42,42],cyan:[0,255,255],darkblue:[0,0,139],darkcyan:[0,139,139],darkgrey:[169,169,169],darkgreen:[0,100,0],darkkhaki:[189,183,107],darkmagenta:[139,0,139],darkolivegreen:[85,107,47],darkorange:[255,140,0],darkorchid:[153,50,204],darkred:[139,0,0],darksalmon:[233,150,122],darkviolet:[148,0,211],fuchsia:[255,0,255],gold:[255,215,0],green:[0,128,0],indigo:[75,0,130],khaki:[240,230,140],lightblue:[173,216,230],lightcyan:[224,255,255],lightgreen:[144,238,144],lightgrey:[211,211,211],lightpink:[255,182,193],lightyellow:[255,255,224],lime:[0,255,0],magenta:[255,0,255],maroon:[128,0,0],navy:[0,0,128],olive:[128,128,0],orange:[255,165,0],pink:[255,192,203],purple:[128,0,128],violet:[128,0,128],red:[255,0,0],silver:[192,192,192],white:[255,255,255],yellow:[255,255,0]}})();
+
+// the actual Flot code
+(function($) {
+ function Plot(placeholder, data_, options_, plugins) {
+ // data is on the form:
+ // [ series1, series2 ... ]
+ // where series is either just the data as [ [x1, y1], [x2, y2], ... ]
+ // or { data: [ [x1, y1], [x2, y2], ... ], label: "some label", ... }
+
+ var series = [],
+ options = {
+ // the color theme used for graphs
+ colors: ["#edc240", "#afd8f8", "#cb4b4b", "#4da74d", "#9440ed"],
+ legend: {
+ show: true,
+ noColumns: 1, // number of colums in legend table
+ labelFormatter: null, // fn: string -> string
+ labelBoxBorderColor: "#ccc", // border color for the little label boxes
+ container: null, // container (as jQuery object) to put legend in, null means default on top of graph
+ position: "ne", // position of default legend container within plot
+ margin: 5, // distance from grid edge to default legend container within plot
+ backgroundColor: null, // null means auto-detect
+ backgroundOpacity: 0.85 // set to 0 to avoid background
+ },
+ xaxis: {
+ mode: null, // null or "time"
+ transform: null, // null or f: number -> number to transform axis
+ inverseTransform: null, // if transform is set, this should be the inverse function
+ min: null, // min. value to show, null means set automatically
+ max: null, // max. value to show, null means set automatically
+ autoscaleMargin: null, // margin in % to add if auto-setting min/max
+ ticks: null, // either [1, 3] or [[1, "a"], 3] or (fn: axis info -> ticks) or app. number of ticks for auto-ticks
+ tickFormatter: null, // fn: number -> string
+ labelWidth: null, // size of tick labels in pixels
+ labelHeight: null,
+
+ // mode specific options
+ tickDecimals: null, // no. of decimals, null means auto
+ tickSize: null, // number or [number, "unit"]
+ minTickSize: null, // number or [number, "unit"]
+ monthNames: null, // list of names of months
+ timeformat: null, // format string to use
+ twelveHourClock: false // 12 or 24 time in time mode
+ },
+ yaxis: {
+ autoscaleMargin: 0.02
+ },
+ x2axis: {
+ autoscaleMargin: null
+ },
+ y2axis: {
+ autoscaleMargin: 0.02
+ },
+ series: {
+ points: {
+ show: false,
+ radius: 3,
+ lineWidth: 2, // in pixels
+ fill: true,
+ fillColor: "#ffffff"
+ },
+ lines: {
+ // we don't put in show: false so we can see
+ // whether lines were actively disabled
+ lineWidth: 2, // in pixels
+ fill: false,
+ fillColor: null,
+ steps: false
+ },
+ bars: {
+ show: false,
+ lineWidth: 2, // in pixels
+ barWidth: 1, // in units of the x axis
+ fill: true,
+ fillColor: null,
+ align: "left", // or "center"
+ horizontal: false // when horizontal, left is now top
+ },
+ shadowSize: 3
+ },
+ grid: {
+ show: true,
+ aboveData: false,
+ color: "#545454", // primary color used for outline and labels
+ backgroundColor: null, // null for transparent, else color
+ tickColor: "rgba(0,0,0,0.15)", // color used for the ticks
+ labelMargin: 5, // in pixels
+ borderWidth: 2, // in pixels
+ borderColor: null, // set if different from the grid color
+ markings: null, // array of ranges or fn: axes -> array of ranges
+ markingsColor: "#f4f4f4",
+ markingsLineWidth: 2,
+ // interactive stuff
+ clickable: false,
+ hoverable: false,
+ autoHighlight: true, // highlight in case mouse is near
+ mouseActiveRadius: 10 // how far the mouse can be away to activate an item
+ },
+ hooks: {}
+ },
+ canvas = null, // the canvas for the plot itself
+ overlay = null, // canvas for interactive stuff on top of plot
+ eventHolder = null, // jQuery object that events should be bound to
+ ctx = null, octx = null,
+ axes = { xaxis: {}, yaxis: {}, x2axis: {}, y2axis: {} },
+ plotOffset = { left: 0, right: 0, top: 0, bottom: 0},
+ canvasWidth = 0, canvasHeight = 0,
+ plotWidth = 0, plotHeight = 0,
+ hooks = {
+ processOptions: [],
+ processRawData: [],
+ processDatapoints: [],
+ draw: [],
+ bindEvents: [],
+ drawOverlay: []
+ },
+ plot = this;
+
+ // public functions
+ plot.setData = setData;
+ plot.setupGrid = setupGrid;
+ plot.draw = draw;
+ plot.getPlaceholder = function() { return placeholder; };
+ plot.getCanvas = function() { return canvas; };
+ plot.getPlotOffset = function() { return plotOffset; };
+ plot.width = function () { return plotWidth; };
+ plot.height = function () { return plotHeight; };
+ plot.offset = function () {
+ var o = eventHolder.offset();
+ o.left += plotOffset.left;
+ o.top += plotOffset.top;
+ return o;
+ };
+ plot.getData = function() { return series; };
+ plot.getAxes = function() { return axes; };
+ plot.getOptions = function() { return options; };
+ plot.highlight = highlight;
+ plot.unhighlight = unhighlight;
+ plot.triggerRedrawOverlay = triggerRedrawOverlay;
+ plot.pointOffset = function(point) {
+ return { left: parseInt(axisSpecToRealAxis(point, "xaxis").p2c(+point.x) + plotOffset.left),
+ top: parseInt(axisSpecToRealAxis(point, "yaxis").p2c(+point.y) + plotOffset.top) };
+ };
+
+
+ // public attributes
+ plot.hooks = hooks;
+
+ // initialize
+ initPlugins(plot);
+ parseOptions(options_);
+ constructCanvas();
+ setData(data_);
+ setupGrid();
+ draw();
+ bindEvents();
+
+
+ function executeHooks(hook, args) {
+ args = [plot].concat(args);
+ for (var i = 0; i < hook.length; ++i)
+ hook[i].apply(this, args);
+ }
+
+ function initPlugins() {
+ for (var i = 0; i < plugins.length; ++i) {
+ var p = plugins[i];
+ p.init(plot);
+ if (p.options)
+ $.extend(true, options, p.options);
+ }
+ }
+
+ function parseOptions(opts) {
+ $.extend(true, options, opts);
+ if (options.grid.borderColor == null)
+ options.grid.borderColor = options.grid.color;
+ // backwards compatibility, to be removed in future
+ if (options.xaxis.noTicks && options.xaxis.ticks == null)
+ options.xaxis.ticks = options.xaxis.noTicks;
+ if (options.yaxis.noTicks && options.yaxis.ticks == null)
+ options.yaxis.ticks = options.yaxis.noTicks;
+ if (options.grid.coloredAreas)
+ options.grid.markings = options.grid.coloredAreas;
+ if (options.grid.coloredAreasColor)
+ options.grid.markingsColor = options.grid.coloredAreasColor;
+ if (options.lines)
+ $.extend(true, options.series.lines, options.lines);
+ if (options.points)
+ $.extend(true, options.series.points, options.points);
+ if (options.bars)
+ $.extend(true, options.series.bars, options.bars);
+ if (options.shadowSize)
+ options.series.shadowSize = options.shadowSize;
+
+ for (var n in hooks)
+ if (options.hooks[n] && options.hooks[n].length)
+ hooks[n] = hooks[n].concat(options.hooks[n]);
+
+ executeHooks(hooks.processOptions, [options]);
+ }
+
+ function setData(d) {
+ series = parseData(d);
+ fillInSeriesOptions();
+ processData();
+ }
+
+ function parseData(d) {
+ var res = [];
+ for (var i = 0; i < d.length; ++i) {
+ var s = $.extend(true, {}, options.series);
+
+ if (d[i].data) {
+ s.data = d[i].data; // move the data instead of deep-copy
+ delete d[i].data;
+
+ $.extend(true, s, d[i]);
+
+ d[i].data = s.data;
+ }
+ else
+ s.data = d[i];
+ res.push(s);
+ }
+
+ return res;
+ }
+
+ function axisSpecToRealAxis(obj, attr) {
+ var a = obj[attr];
+ if (!a || a == 1)
+ return axes[attr];
+ if (typeof a == "number")
+ return axes[attr.charAt(0) + a + attr.slice(1)];
+ return a; // assume it's OK
+ }
+
+ function fillInSeriesOptions() {
+ var i;
+
+ // collect what we already got of colors
+ var neededColors = series.length,
+ usedColors = [],
+ assignedColors = [];
+ for (i = 0; i < series.length; ++i) {
+ var sc = series[i].color;
+ if (sc != null) {
+ --neededColors;
+ if (typeof sc == "number")
+ assignedColors.push(sc);
+ else
+ usedColors.push($.color.parse(series[i].color));
+ }
+ }
+
+ // we might need to generate more colors if higher indices
+ // are assigned
+ for (i = 0; i < assignedColors.length; ++i) {
+ neededColors = Math.max(neededColors, assignedColors[i] + 1);
+ }
+
+ // produce colors as needed
+ var colors = [], variation = 0;
+ i = 0;
+ while (colors.length < neededColors) {
+ var c;
+ if (options.colors.length == i) // check degenerate case
+ c = $.color.make(100, 100, 100);
+ else
+ c = $.color.parse(options.colors[i]);
+
+ // vary color if needed
+ var sign = variation % 2 == 1 ? -1 : 1;
+ c.scale('rgb', 1 + sign * Math.ceil(variation / 2) * 0.2)
+
+ // FIXME: if we're getting to close to something else,
+ // we should probably skip this one
+ colors.push(c);
+
+ ++i;
+ if (i >= options.colors.length) {
+ i = 0;
+ ++variation;
+ }
+ }
+
+ // fill in the options
+ var colori = 0, s;
+ for (i = 0; i < series.length; ++i) {
+ s = series[i];
+
+ // assign colors
+ if (s.color == null) {
+ s.color = colors[colori].toString();
+ ++colori;
+ }
+ else if (typeof s.color == "number")
+ s.color = colors[s.color].toString();
+
+ // turn on lines automatically in case nothing is set
+ if (s.lines.show == null) {
+ var v, show = true;
+ for (v in s)
+ if (s[v].show) {
+ show = false;
+ break;
+ }
+ if (show)
+ s.lines.show = true;
+ }
+
+ // setup axes
+ s.xaxis = axisSpecToRealAxis(s, "xaxis");
+ s.yaxis = axisSpecToRealAxis(s, "yaxis");
+ }
+ }
+
+ function processData() {
+ var topSentry = Number.POSITIVE_INFINITY,
+ bottomSentry = Number.NEGATIVE_INFINITY,
+ i, j, k, m, length,
+ s, points, ps, x, y, axis, val, f, p;
+
+ for (axis in axes) {
+ axes[axis].datamin = topSentry;
+ axes[axis].datamax = bottomSentry;
+ axes[axis].used = false;
+ }
+
+ function updateAxis(axis, min, max) {
+ if (min < axis.datamin)
+ axis.datamin = min;
+ if (max > axis.datamax)
+ axis.datamax = max;
+ }
+
+ for (i = 0; i < series.length; ++i) {
+ s = series[i];
+ s.datapoints = { points: [] };
+
+ executeHooks(hooks.processRawData, [ s, s.data, s.datapoints ]);
+ }
+
+ // first pass: clean and copy data
+ for (i = 0; i < series.length; ++i) {
+ s = series[i];
+
+ var data = s.data, format = s.datapoints.format;
+
+ if (!format) {
+ format = [];
+ // find out how to copy
+ format.push({ x: true, number: true, required: true });
+ format.push({ y: true, number: true, required: true });
+
+ if (s.bars.show)
+ format.push({ y: true, number: true, required: false, defaultValue: 0 });
+
+ s.datapoints.format = format;
+ }
+
+ if (s.datapoints.pointsize != null)
+ continue; // already filled in
+
+ if (s.datapoints.pointsize == null)
+ s.datapoints.pointsize = format.length;
+
+ ps = s.datapoints.pointsize;
+ points = s.datapoints.points;
+
+ insertSteps = s.lines.show && s.lines.steps;
+ s.xaxis.used = s.yaxis.used = true;
+
+ for (j = k = 0; j < data.length; ++j, k += ps) {
+ p = data[j];
+
+ var nullify = p == null;
+ if (!nullify) {
+ for (m = 0; m < ps; ++m) {
+ val = p[m];
+ f = format[m];
+
+ if (f) {
+ if (f.number && val != null) {
+ val = +val; // convert to number
+ if (isNaN(val))
+ val = null;
+ }
+
+ if (val == null) {
+ if (f.required)
+ nullify = true;
+
+ if (f.defaultValue != null)
+ val = f.defaultValue;
+ }
+ }
+
+ points[k + m] = val;
+ }
+ }
+
+ if (nullify) {
+ for (m = 0; m < ps; ++m) {
+ val = points[k + m];
+ if (val != null) {
+ f = format[m];
+ // extract min/max info
+ if (f.x)
+ updateAxis(s.xaxis, val, val);
+ if (f.y)
+ updateAxis(s.yaxis, val, val);
+ }
+ points[k + m] = null;
+ }
+ }
+ else {
+ // a little bit of line specific stuff that
+ // perhaps shouldn't be here, but lacking
+ // better means...
+ if (insertSteps && k > 0
+ && points[k - ps] != null
+ && points[k - ps] != points[k]
+ && points[k - ps + 1] != points[k + 1]) {
+ // copy the point to make room for a middle point
+ for (m = 0; m < ps; ++m)
+ points[k + ps + m] = points[k + m];
+
+ // middle point has same y
+ points[k + 1] = points[k - ps + 1];
+
+ // we've added a point, better reflect that
+ k += ps;
+ }
+ }
+ }
+ }
+
+ // give the hooks a chance to run
+ for (i = 0; i < series.length; ++i) {
+ s = series[i];
+
+ executeHooks(hooks.processDatapoints, [ s, s.datapoints]);
+ }
+
+ // second pass: find datamax/datamin for auto-scaling
+ for (i = 0; i < series.length; ++i) {
+ s = series[i];
+ points = s.datapoints.points,
+ ps = s.datapoints.pointsize;
+
+ var xmin = topSentry, ymin = topSentry,
+ xmax = bottomSentry, ymax = bottomSentry;
+
+ for (j = 0; j < points.length; j += ps) {
+ if (points[j] == null)
+ continue;
+
+ for (m = 0; m < ps; ++m) {
+ val = points[j + m];
+ f = format[m];
+ if (!f)
+ continue;
+
+ if (f.x) {
+ if (val < xmin)
+ xmin = val;
+ if (val > xmax)
+ xmax = val;
+ }
+ if (f.y) {
+ if (val < ymin)
+ ymin = val;
+ if (val > ymax)
+ ymax = val;
+ }
+ }
+ }
+
+ if (s.bars.show) {
+ // make sure we got room for the bar on the dancing floor
+ var delta = s.bars.align == "left" ? 0 : -s.bars.barWidth/2;
+ if (s.bars.horizontal) {
+ ymin += delta;
+ ymax += delta + s.bars.barWidth;
+ }
+ else {
+ xmin += delta;
+ xmax += delta + s.bars.barWidth;
+ }
+ }
+
+ updateAxis(s.xaxis, xmin, xmax);
+ updateAxis(s.yaxis, ymin, ymax);
+ }
+
+ for (axis in axes) {
+ if (axes[axis].datamin == topSentry)
+ axes[axis].datamin = null;
+ if (axes[axis].datamax == bottomSentry)
+ axes[axis].datamax = null;
+ }
+ }
+
+ function constructCanvas() {
+ function makeCanvas(width, height) {
+ var c = document.createElement('canvas');
+ c.width = width;
+ c.height = height;
+ if ($.browser.msie) // excanvas hack
+ c = window.G_vmlCanvasManager.initElement(c);
+ return c;
+ }
+
+ canvasWidth = placeholder.width();
+ canvasHeight = placeholder.height();
+ placeholder.html(""); // clear placeholder
+ if (placeholder.css("position") == 'static')
+ placeholder.css("position", "relative"); // for positioning labels and overlay
+
+ if (canvasWidth <= 0 || canvasHeight <= 0)
+ throw "Invalid dimensions for plot, width = " + canvasWidth + ", height = " + canvasHeight;
+
+ if ($.browser.msie) // excanvas hack
+ window.G_vmlCanvasManager.init_(document); // make sure everything is setup
+
+ // the canvas
+ canvas = $(makeCanvas(canvasWidth, canvasHeight)).appendTo(placeholder).get(0);
+ ctx = canvas.getContext("2d");
+
+ // overlay canvas for interactive features
+ overlay = $(makeCanvas(canvasWidth, canvasHeight)).css({ position: 'absolute', left: 0, top: 0 }).appendTo(placeholder).get(0);
+ octx = overlay.getContext("2d");
+ octx.stroke();
+ }
+
+ function bindEvents() {
+ // we include the canvas in the event holder too, because IE 7
+ // sometimes has trouble with the stacking order
+ eventHolder = $([overlay, canvas]);
+
+ // bind events
+ if (options.grid.hoverable)
+ eventHolder.mousemove(onMouseMove);
+
+ if (options.grid.clickable)
+ eventHolder.click(onClick);
+
+ executeHooks(hooks.bindEvents, [eventHolder]);
+ }
+
+ function setupGrid() {
+ function setTransformationHelpers(axis, o) {
+ function identity(x) { return x; }
+
+ var s, m, t = o.transform || identity,
+ it = o.inverseTransform;
+
+ // add transformation helpers
+ if (axis == axes.xaxis || axis == axes.x2axis) {
+ // precompute how much the axis is scaling a point
+ // in canvas space
+ s = axis.scale = plotWidth / (t(axis.max) - t(axis.min));
+ m = t(axis.min);
+
+ // data point to canvas coordinate
+ if (t == identity) // slight optimization
+ axis.p2c = function (p) { return (p - m) * s; };
+ else
+ axis.p2c = function (p) { return (t(p) - m) * s; };
+ // canvas coordinate to data point
+ if (!it)
+ axis.c2p = function (c) { return m + c / s; };
+ else
+ axis.c2p = function (c) { return it(m + c / s); };
+ }
+ else {
+ s = axis.scale = plotHeight / (t(axis.max) - t(axis.min));
+ m = t(axis.max);
+
+ if (t == identity)
+ axis.p2c = function (p) { return (m - p) * s; };
+ else
+ axis.p2c = function (p) { return (m - t(p)) * s; };
+ if (!it)
+ axis.c2p = function (c) { return m - c / s; };
+ else
+ axis.c2p = function (c) { return it(m - c / s); };
+ }
+ }
+
+ function measureLabels(axis, axisOptions) {
+ var i, labels = [], l;
+
+ axis.labelWidth = axisOptions.labelWidth;
+ axis.labelHeight = axisOptions.labelHeight;
+
+ if (axis == axes.xaxis || axis == axes.x2axis) {
+ // to avoid measuring the widths of the labels, we
+ // construct fixed-size boxes and put the labels inside
+ // them, we don't need the exact figures and the
+ // fixed-size box content is easy to center
+ if (axis.labelWidth == null)
+ axis.labelWidth = canvasWidth / (axis.ticks.length > 0 ? axis.ticks.length : 1);
+
+ // measure x label heights
+ if (axis.labelHeight == null) {
+ labels = [];
+ for (i = 0; i < axis.ticks.length; ++i) {
+ l = axis.ticks[i].label;
+ if (l)
+ labels.push('<div class="tickLabel" style="float:left;width:' + axis.labelWidth + 'px">' + l + '</div>');
+ }
+
+ if (labels.length > 0) {
+ var dummyDiv = $('<div style="position:absolute;top:-10000px;width:10000px;font-size:smaller">'
+ + labels.join("") + '<div style="clear:left"></div></div>').appendTo(placeholder);
+ axis.labelHeight = dummyDiv.height();
+ dummyDiv.remove();
+ }
+ }
+ }
+ else if (axis.labelWidth == null || axis.labelHeight == null) {
+ // calculate y label dimensions
+ for (i = 0; i < axis.ticks.length; ++i) {
+ l = axis.ticks[i].label;
+ if (l)
+ labels.push('<div class="tickLabel">' + l + '</div>');
+ }
+
+ if (labels.length > 0) {
+ var dummyDiv = $('<div style="position:absolute;top:-10000px;font-size:smaller">'
+ + labels.join("") + '</div>').appendTo(placeholder);
+ if (axis.labelWidth == null)
+ axis.labelWidth = dummyDiv.width();
+ if (axis.labelHeight == null)
+ axis.labelHeight = dummyDiv.find("div").height();
+ dummyDiv.remove();
+ }
+
+ }
+
+ if (axis.labelWidth == null)
+ axis.labelWidth = 0;
+ if (axis.labelHeight == null)
+ axis.labelHeight = 0;
+ }
+
+ function setGridSpacing() {
+ // get the most space needed around the grid for things
+ // that may stick out
+ var maxOutset = options.grid.borderWidth;
+ for (i = 0; i < series.length; ++i)
+ maxOutset = Math.max(maxOutset, 2 * (series[i].points.radius + series[i].points.lineWidth/2));
+
+ plotOffset.left = plotOffset.right = plotOffset.top = plotOffset.bottom = maxOutset;
+
+ var margin = options.grid.labelMargin + options.grid.borderWidth;
+
+ if (axes.xaxis.labelHeight > 0)
+ plotOffset.bottom = Math.max(maxOutset, axes.xaxis.labelHeight + margin);
+ if (axes.yaxis.labelWidth > 0)
+ plotOffset.left = Math.max(maxOutset, axes.yaxis.labelWidth + margin);
+ if (axes.x2axis.labelHeight > 0)
+ plotOffset.top = Math.max(maxOutset, axes.x2axis.labelHeight + margin);
+ if (axes.y2axis.labelWidth > 0)
+ plotOffset.right = Math.max(maxOutset, axes.y2axis.labelWidth + margin);
+
+ plotWidth = canvasWidth - plotOffset.left - plotOffset.right;
+ plotHeight = canvasHeight - plotOffset.bottom - plotOffset.top;
+ }
+
+ var axis;
+ for (axis in axes)
+ setRange(axes[axis], options[axis]);
+
+ if (options.grid.show) {
+ for (axis in axes) {
+ prepareTickGeneration(axes[axis], options[axis]);
+ setTicks(axes[axis], options[axis]);
+ measureLabels(axes[axis], options[axis]);
+ }
+
+ setGridSpacing();
+ }
+ else {
+ plotOffset.left = plotOffset.right = plotOffset.top = plotOffset.bottom = 0;
+ plotWidth = canvasWidth;
+ plotHeight = canvasHeight;
+ }
+
+ for (axis in axes)
+ setTransformationHelpers(axes[axis], options[axis]);
+
+ if (options.grid.show)
+ insertLabels();
+
+ insertLegend();
+ }
+
+ function setRange(axis, axisOptions) {
+ var min = +(axisOptions.min != null ? axisOptions.min : axis.datamin),
+ max = +(axisOptions.max != null ? axisOptions.max : axis.datamax),
+ delta = max - min;
+
+ if (delta == 0.0) {
+ // degenerate case
+ var widen = max == 0 ? 1 : 0.01;
+
+ if (axisOptions.min == null)
+ min -= widen;
+ // alway widen max if we couldn't widen min to ensure we
+ // don't fall into min == max which doesn't work
+ if (axisOptions.max == null || axisOptions.min != null)
+ max += widen;
+ }
+ else {
+ // consider autoscaling
+ var margin = axisOptions.autoscaleMargin;
+ if (margin != null) {
+ if (axisOptions.min == null) {
+ min -= delta * margin;
+ // make sure we don't go below zero if all values
+ // are positive
+ if (min < 0 && axis.datamin != null && axis.datamin >= 0)
+ min = 0;
+ }
+ if (axisOptions.max == null) {
+ max += delta * margin;
+ if (max > 0 && axis.datamax != null && axis.datamax <= 0)
+ max = 0;
+ }
+ }
+ }
+ axis.min = min;
+ axis.max = max;
+ }
+
+ function prepareTickGeneration(axis, axisOptions) {
+ // estimate number of ticks
+ var noTicks;
+ if (typeof axisOptions.ticks == "number" && axisOptions.ticks > 0)
+ noTicks = axisOptions.ticks;
+ else if (axis == axes.xaxis || axis == axes.x2axis)
+ // heuristic based on the model a*sqrt(x) fitted to
+ // some reasonable data points
+ noTicks = 0.3 * Math.sqrt(canvasWidth);
+ else
+ noTicks = 0.3 * Math.sqrt(canvasHeight);
+
+ var delta = (axis.max - axis.min) / noTicks,
+ size, generator, unit, formatter, i, magn, norm;
+
+ if (axisOptions.mode == "time") {
+ // pretty handling of time
+
+ // map of app. size of time units in milliseconds
+ var timeUnitSize = {
+ "second": 1000,
+ "minute": 60 * 1000,
+ "hour": 60 * 60 * 1000,
+ "day": 24 * 60 * 60 * 1000,
+ "month": 30 * 24 * 60 * 60 * 1000,
+ "year": 365.2425 * 24 * 60 * 60 * 1000
+ };
+
+
+ // the allowed tick sizes, after 1 year we use
+ // an integer algorithm
+ var spec = [
+ [1, "second"], [2, "second"], [5, "second"], [10, "second"],
+ [30, "second"],
+ [1, "minute"], [2, "minute"], [5, "minute"], [10, "minute"],
+ [30, "minute"],
+ [1, "hour"], [2, "hour"], [4, "hour"],
+ [8, "hour"], [12, "hour"],
+ [1, "day"], [2, "day"], [3, "day"],
+ [0.25, "month"], [0.5, "month"], [1, "month"],
+ [2, "month"], [3, "month"], [6, "month"],
+ [1, "year"]
+ ];
+
+ var minSize = 0;
+ if (axisOptions.minTickSize != null) {
+ if (typeof axisOptions.tickSize == "number")
+ minSize = axisOptions.tickSize;
+ else
+ minSize = axisOptions.minTickSize[0] * timeUnitSize[axisOptions.minTickSize[1]];
+ }
+
+ for (i = 0; i < spec.length - 1; ++i)
+ if (delta < (spec[i][0] * timeUnitSize[spec[i][1]]
+ + spec[i + 1][0] * timeUnitSize[spec[i + 1][1]]) / 2
+ && spec[i][0] * timeUnitSize[spec[i][1]] >= minSize)
+ break;
+ size = spec[i][0];
+ unit = spec[i][1];
+
+ // special-case the possibility of several years
+ if (unit == "year") {
+ magn = Math.pow(10, Math.floor(Math.log(delta / timeUnitSize.year) / Math.LN10));
+ norm = (delta / timeUnitSize.year) / magn;
+ if (norm < 1.5)
+ size = 1;
+ else if (norm < 3)
+ size = 2;
+ else if (norm < 7.5)
+ size = 5;
+ else
+ size = 10;
+
+ size *= magn;
+ }
+
+ if (axisOptions.tickSize) {
+ size = axisOptions.tickSize[0];
+ unit = axisOptions.tickSize[1];
+ }
+
+ generator = function(axis) {
+ var ticks = [],
+ tickSize = axis.tickSize[0], unit = axis.tickSize[1],
+ d = new Date(axis.min);
+
+ var step = tickSize * timeUnitSize[unit];
+
+ if (unit == "second")
+ d.setUTCSeconds(floorInBase(d.getUTCSeconds(), tickSize));
+ if (unit == "minute")
+ d.setUTCMinutes(floorInBase(d.getUTCMinutes(), tickSize));
+ if (unit == "hour")
+ d.setUTCHours(floorInBase(d.getUTCHours(), tickSize));
+ if (unit == "month")
+ d.setUTCMonth(floorInBase(d.getUTCMonth(), tickSize));
+ if (unit == "year")
+ d.setUTCFullYear(floorInBase(d.getUTCFullYear(), tickSize));
+
+ // reset smaller components
+ d.setUTCMilliseconds(0);
+ if (step >= timeUnitSize.minute)
+ d.setUTCSeconds(0);
+ if (step >= timeUnitSize.hour)
+ d.setUTCMinutes(0);
+ if (step >= timeUnitSize.day)
+ d.setUTCHours(0);
+ if (step >= timeUnitSize.day * 4)
+ d.setUTCDate(1);
+ if (step >= timeUnitSize.year)
+ d.setUTCMonth(0);
+
+
+ var carry = 0, v = Number.NaN, prev;
+ do {
+ prev = v;
+ v = d.getTime();
+ ticks.push({ v: v, label: axis.tickFormatter(v, axis) });
+ if (unit == "month") {
+ if (tickSize < 1) {
+ // a bit complicated - we'll divide the month
+ // up but we need to take care of fractions
+ // so we don't end up in the middle of a day
+ d.setUTCDate(1);
+ var start = d.getTime();
+ d.setUTCMonth(d.getUTCMonth() + 1);
+ var end = d.getTime();
+ d.setTime(v + carry * timeUnitSize.hour + (end - start) * tickSize);
+ carry = d.getUTCHours();
+ d.setUTCHours(0);
+ }
+ else
+ d.setUTCMonth(d.getUTCMonth() + tickSize);
+ }
+ else if (unit == "year") {
+ d.setUTCFullYear(d.getUTCFullYear() + tickSize);
+ }
+ else
+ d.setTime(v + step);
+ } while (v < axis.max && v != prev);
+
+ return ticks;
+ };
+
+ formatter = function (v, axis) {
+ var d = new Date(v);
+
+ // first check global format
+ if (axisOptions.timeformat != null)
+ return $.plot.formatDate(d, axisOptions.timeformat, axisOptions.monthNames);
+
+ var t = axis.tickSize[0] * timeUnitSize[axis.tickSize[1]];
+ var span = axis.max - axis.min;
+ var suffix = (axisOptions.twelveHourClock) ? " %p" : "";
+
+ if (t < timeUnitSize.minute)
+ fmt = "%h:%M:%S" + suffix;
+ else if (t < timeUnitSize.day) {
+ if (span < 2 * timeUnitSize.day)
+ fmt = "%h:%M" + suffix;
+ else
+ fmt = "%b %d %h:%M" + suffix;
+ }
+ else if (t < timeUnitSize.month)
+ fmt = "%b %d";
+ else if (t < timeUnitSize.year) {
+ if (span < timeUnitSize.year)
+ fmt = "%b";
+ else
+ fmt = "%b %y";
+ }
+ else
+ fmt = "%y";
+
+ return $.plot.formatDate(d, fmt, axisOptions.monthNames);
+ };
+ }
+ else {
+ // pretty rounding of base-10 numbers
+ var maxDec = axisOptions.tickDecimals;
+ var dec = -Math.floor(Math.log(delta) / Math.LN10);
+ if (maxDec != null && dec > maxDec)
+ dec = maxDec;
+
+ magn = Math.pow(10, -dec);
+ norm = delta / magn; // norm is between 1.0 and 10.0
+
+ if (norm < 1.5)
+ size = 1;
+ else if (norm < 3) {
+ size = 2;
+ // special case for 2.5, requires an extra decimal
+ if (norm > 2.25 && (maxDec == null || dec + 1 <= maxDec)) {
+ size = 2.5;
+ ++dec;
+ }
+ }
+ else if (norm < 7.5)
+ size = 5;
+ else
+ size = 10;
+
+ size *= magn;
+
+ if (axisOptions.minTickSize != null && size < axisOptions.minTickSize)
+ size = axisOptions.minTickSize;
+
+ if (axisOptions.tickSize != null)
+ size = axisOptions.tickSize;
+
+ axis.tickDecimals = Math.max(0, (maxDec != null) ? maxDec : dec);
+
+ generator = function (axis) {
+ var ticks = [];
+
+ // spew out all possible ticks
+ var start = floorInBase(axis.min, axis.tickSize),
+ i = 0, v = Number.NaN, prev;
+ do {
+ prev = v;
+ v = start + i * axis.tickSize;
+ ticks.push({ v: v, label: axis.tickFormatter(v, axis) });
+ ++i;
+ } while (v < axis.max && v != prev);
+ return ticks;
+ };
+
+ formatter = function (v, axis) {
+ return v.toFixed(axis.tickDecimals);
+ };
+ }
+
+ axis.tickSize = unit ? [size, unit] : size;
+ axis.tickGenerator = generator;
+ if ($.isFunction(axisOptions.tickFormatter))
+ axis.tickFormatter = function (v, axis) { return "" + axisOptions.tickFormatter(v, axis); };
+ else
+ axis.tickFormatter = formatter;
+ }
+
+ function setTicks(axis, axisOptions) {
+ axis.ticks = [];
+
+ if (!axis.used)
+ return;
+
+ if (axisOptions.ticks == null)
+ axis.ticks = axis.tickGenerator(axis);
+ else if (typeof axisOptions.ticks == "number") {
+ if (axisOptions.ticks > 0)
+ axis.ticks = axis.tickGenerator(axis);
+ }
+ else if (axisOptions.ticks) {
+ var ticks = axisOptions.ticks;
+
+ if ($.isFunction(ticks))
+ // generate the ticks
+ ticks = ticks({ min: axis.min, max: axis.max });
+
+ // clean up the user-supplied ticks, copy them over
+ var i, v;
+ for (i = 0; i < ticks.length; ++i) {
+ var label = null;
+ var t = ticks[i];
+ if (typeof t == "object") {
+ v = t[0];
+ if (t.length > 1)
+ label = t[1];
+ }
+ else
+ v = t;
+ if (label == null)
+ label = axis.tickFormatter(v, axis);
+ axis.ticks[i] = { v: v, label: label };
+ }
+ }
+
+ if (axisOptions.autoscaleMargin != null && axis.ticks.length > 0) {
+ // snap to ticks
+ if (axisOptions.min == null)
+ axis.min = Math.min(axis.min, axis.ticks[0].v);
+ if (axisOptions.max == null && axis.ticks.length > 1)
+ axis.max = Math.max(axis.max, axis.ticks[axis.ticks.length - 1].v);
+ }
+ }
+
+ function draw() {
+ ctx.clearRect(0, 0, canvasWidth, canvasHeight);
+
+ var grid = options.grid;
+
+ if (grid.show && !grid.aboveData)
+ drawGrid();
+
+ for (var i = 0; i < series.length; ++i)
+ drawSeries(series[i]);
+
+ executeHooks(hooks.draw, [ctx]);
+
+ if (grid.show && grid.aboveData)
+ drawGrid();
+ }
+
+ function extractRange(ranges, coord) {
+ var firstAxis = coord + "axis",
+ secondaryAxis = coord + "2axis",
+ axis, from, to, reverse;
+
+ if (ranges[firstAxis]) {
+ axis = axes[firstAxis];
+ from = ranges[firstAxis].from;
+ to = ranges[firstAxis].to;
+ }
+ else if (ranges[secondaryAxis]) {
+ axis = axes[secondaryAxis];
+ from = ranges[secondaryAxis].from;
+ to = ranges[secondaryAxis].to;
+ }
+ else {
+ // backwards-compat stuff - to be removed in future
+ axis = axes[firstAxis];
+ from = ranges[coord + "1"];
+ to = ranges[coord + "2"];
+ }
+
+ // auto-reverse as an added bonus
+ if (from != null && to != null && from > to)
+ return { from: to, to: from, axis: axis };
+
+ return { from: from, to: to, axis: axis };
+ }
+
+ function drawGrid() {
+ var i;
+
+ ctx.save();
+ ctx.translate(plotOffset.left, plotOffset.top);
+
+ // draw background, if any
+ if (options.grid.backgroundColor) {
+ ctx.fillStyle = getColorOrGradient(options.grid.backgroundColor, plotHeight, 0, "rgba(255, 255, 255, 0)");
+ ctx.fillRect(0, 0, plotWidth, plotHeight);
+ }
+
+ // draw markings
+ var markings = options.grid.markings;
+ if (markings) {
+ if ($.isFunction(markings))
+ // xmin etc. are backwards-compatible, to be removed in future
+ markings = markings({ xmin: axes.xaxis.min, xmax: axes.xaxis.max, ymin: axes.yaxis.min, ymax: axes.yaxis.max, xaxis: axes.xaxis, yaxis: axes.yaxis, x2axis: axes.x2axis, y2axis: axes.y2axis });
+
+ for (i = 0; i < markings.length; ++i) {
+ var m = markings[i],
+ xrange = extractRange(m, "x"),
+ yrange = extractRange(m, "y");
+
+ // fill in missing
+ if (xrange.from == null)
+ xrange.from = xrange.axis.min;
+ if (xrange.to == null)
+ xrange.to = xrange.axis.max;
+ if (yrange.from == null)
+ yrange.from = yrange.axis.min;
+ if (yrange.to == null)
+ yrange.to = yrange.axis.max;
+
+ // clip
+ if (xrange.to < xrange.axis.min || xrange.from > xrange.axis.max ||
+ yrange.to < yrange.axis.min || yrange.from > yrange.axis.max)
+ continue;
+
+ xrange.from = Math.max(xrange.from, xrange.axis.min);
+ xrange.to = Math.min(xrange.to, xrange.axis.max);
+ yrange.from = Math.max(yrange.from, yrange.axis.min);
+ yrange.to = Math.min(yrange.to, yrange.axis.max);
+
+ if (xrange.from == xrange.to && yrange.from == yrange.to)
+ continue;
+
+ // then draw
+ xrange.from = xrange.axis.p2c(xrange.from);
+ xrange.to = xrange.axis.p2c(xrange.to);
+ yrange.from = yrange.axis.p2c(yrange.from);
+ yrange.to = yrange.axis.p2c(yrange.to);
+
+ if (xrange.from == xrange.to || yrange.from == yrange.to) {
+ // draw line
+ ctx.beginPath();
+ ctx.strokeStyle = m.color || options.grid.markingsColor;
+ ctx.lineWidth = m.lineWidth || options.grid.markingsLineWidth;
+ //ctx.moveTo(Math.floor(xrange.from), yrange.from);
+ //ctx.lineTo(Math.floor(xrange.to), yrange.to);
+ ctx.moveTo(xrange.from, yrange.from);
+ ctx.lineTo(xrange.to, yrange.to);
+ ctx.stroke();
+ }
+ else {
+ // fill area
+ ctx.fillStyle = m.color || options.grid.markingsColor;
+ ctx.fillRect(xrange.from, yrange.to,
+ xrange.to - xrange.from,
+ yrange.from - yrange.to);
+ }
+ }
+ }
+
+ // draw the inner grid
+ ctx.lineWidth = 1;
+ ctx.strokeStyle = options.grid.tickColor;
+ ctx.beginPath();
+ var v, axis = axes.xaxis;
+ for (i = 0; i < axis.ticks.length; ++i) {
+ v = axis.ticks[i].v;
+ if (v <= axis.min || v >= axes.xaxis.max)
+ continue; // skip those lying on the axes
+
+ ctx.moveTo(Math.floor(axis.p2c(v)) + ctx.lineWidth/2, 0);
+ ctx.lineTo(Math.floor(axis.p2c(v)) + ctx.lineWidth/2, plotHeight);
+ }
+
+ axis = axes.yaxis;
+ for (i = 0; i < axis.ticks.length; ++i) {
+ v = axis.ticks[i].v;
+ if (v <= axis.min || v >= axis.max)
+ continue;
+
+ ctx.moveTo(0, Math.floor(axis.p2c(v)) + ctx.lineWidth/2);
+ ctx.lineTo(plotWidth, Math.floor(axis.p2c(v)) + ctx.lineWidth/2);
+ }
+
+ axis = axes.x2axis;
+ for (i = 0; i < axis.ticks.length; ++i) {
+ v = axis.ticks[i].v;
+ if (v <= axis.min || v >= axis.max)
+ continue;
+
+ ctx.moveTo(Math.floor(axis.p2c(v)) + ctx.lineWidth/2, -5);
+ ctx.lineTo(Math.floor(axis.p2c(v)) + ctx.lineWidth/2, 5);
+ }
+
+ axis = axes.y2axis;
+ for (i = 0; i < axis.ticks.length; ++i) {
+ v = axis.ticks[i].v;
+ if (v <= axis.min || v >= axis.max)
+ continue;
+
+ ctx.moveTo(plotWidth-5, Math.floor(axis.p2c(v)) + ctx.lineWidth/2);
+ ctx.lineTo(plotWidth+5, Math.floor(axis.p2c(v)) + ctx.lineWidth/2);
+ }
+
+ ctx.stroke();
+
+ if (options.grid.borderWidth) {
+ // draw border
+ var bw = options.grid.borderWidth;
+ ctx.lineWidth = bw;
+ ctx.strokeStyle = options.grid.borderColor;
+ ctx.strokeRect(-bw/2, -bw/2, plotWidth + bw, plotHeight + bw);
+ }
+
+ ctx.restore();
+ }
+
+ function insertLabels() {
+ placeholder.find(".tickLabels").remove();
+
+ var html = ['<div class="tickLabels" style="font-size:smaller;color:' + options.grid.color + '">'];
+
+ function addLabels(axis, labelGenerator) {
+ for (var i = 0; i < axis.ticks.length; ++i) {
+ var tick = axis.ticks[i];
+ if (!tick.label || tick.v < axis.min || tick.v > axis.max)
+ continue;
+ html.push(labelGenerator(tick, axis));
+ }
+ }
+
+ var margin = options.grid.labelMargin + options.grid.borderWidth;
+
+ addLabels(axes.xaxis, function (tick, axis) {
+ return '<div style="position:absolute;top:' + (plotOffset.top + plotHeight + margin) + 'px;left:' + Math.round(plotOffset.left + axis.p2c(tick.v) - axis.labelWidth/2) + 'px;width:' + axis.labelWidth + 'px;text-align:center" class="tickLabel">' + tick.label + "</div>";
+ });
+
+
+ addLabels(axes.yaxis, function (tick, axis) {
+ return '<div style="position:absolute;top:' + Math.round(plotOffset.top + axis.p2c(tick.v) - axis.labelHeight/2) + 'px;right:' + (plotOffset.right + plotWidth + margin) + 'px;width:' + axis.labelWidth + 'px;text-align:right" class="tickLabel">' + tick.label + "</div>";
+ });
+
+ addLabels(axes.x2axis, function (tick, axis) {
+ return '<div style="position:absolute;bottom:' + (plotOffset.bottom + plotHeight + margin) + 'px;left:' + Math.round(plotOffset.left + axis.p2c(tick.v) - axis.labelWidth/2) + 'px;width:' + axis.labelWidth + 'px;text-align:center" class="tickLabel">' + tick.label + "</div>";
+ });
+
+ addLabels(axes.y2axis, function (tick, axis) {
+ return '<div style="position:absolute;top:' + Math.round(plotOffset.top + axis.p2c(tick.v) - axis.labelHeight/2) + 'px;left:' + (plotOffset.left + plotWidth + margin) +'px;width:' + axis.labelWidth + 'px;text-align:left" class="tickLabel">' + tick.label + "</div>";
+ });
+
+ html.push('</div>');
+
+ placeholder.append(html.join(""));
+ }
+
+ function drawSeries(series) {
+ if (series.lines.show)
+ drawSeriesLines(series);
+ if (series.bars.show)
+ drawSeriesBars(series);
+ if (series.points.show)
+ drawSeriesPoints(series);
+ }
+
+ function drawSeriesLines(series) {
+ function plotLine(datapoints, xoffset, yoffset, axisx, axisy) {
+ var points = datapoints.points,
+ ps = datapoints.pointsize,
+ prevx = null, prevy = null;
+
+ ctx.beginPath();
+ for (var i = ps; i < points.length; i += ps) {
+ var x1 = points[i - ps], y1 = points[i - ps + 1],
+ x2 = points[i], y2 = points[i + 1];
+
+ if (x1 == null || x2 == null)
+ continue;
+
+ // clip with ymin
+ if (y1 <= y2 && y1 < axisy.min) {
+ if (y2 < axisy.min)
+ continue; // line segment is outside
+ // compute new intersection point
+ x1 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1;
+ y1 = axisy.min;
+ }
+ else if (y2 <= y1 && y2 < axisy.min) {
+ if (y1 < axisy.min)
+ continue;
+ x2 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1;
+ y2 = axisy.min;
+ }
+
+ // clip with ymax
+ if (y1 >= y2 && y1 > axisy.max) {
+ if (y2 > axisy.max)
+ continue;
+ x1 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1;
+ y1 = axisy.max;
+ }
+ else if (y2 >= y1 && y2 > axisy.max) {
+ if (y1 > axisy.max)
+ continue;
+ x2 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1;
+ y2 = axisy.max;
+ }
+
+ // clip with xmin
+ if (x1 <= x2 && x1 < axisx.min) {
+ if (x2 < axisx.min)
+ continue;
+ y1 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1;
+ x1 = axisx.min;
+ }
+ else if (x2 <= x1 && x2 < axisx.min) {
+ if (x1 < axisx.min)
+ continue;
+ y2 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1;
+ x2 = axisx.min;
+ }
+
+ // clip with xmax
+ if (x1 >= x2 && x1 > axisx.max) {
+ if (x2 > axisx.max)
+ continue;
+ y1 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1;
+ x1 = axisx.max;
+ }
+ else if (x2 >= x1 && x2 > axisx.max) {
+ if (x1 > axisx.max)
+ continue;
+ y2 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1;
+ x2 = axisx.max;
+ }
+
+ if (x1 != prevx || y1 != prevy)
+ ctx.moveTo(axisx.p2c(x1) + xoffset, axisy.p2c(y1) + yoffset);
+
+ prevx = x2;
+ prevy = y2;
+ ctx.lineTo(axisx.p2c(x2) + xoffset, axisy.p2c(y2) + yoffset);
+ }
+ ctx.stroke();
+ }
+
+ function plotLineArea(datapoints, axisx, axisy) {
+ var points = datapoints.points,
+ ps = datapoints.pointsize,
+ bottom = Math.min(Math.max(0, axisy.min), axisy.max),
+ top, lastX = 0, areaOpen = false;
+
+ for (var i = ps; i < points.length; i += ps) {
+ var x1 = points[i - ps], y1 = points[i - ps + 1],
+ x2 = points[i], y2 = points[i + 1];
+
+ if (areaOpen && x1 != null && x2 == null) {
+ // close area
+ ctx.lineTo(axisx.p2c(lastX), axisy.p2c(bottom));
+ ctx.fill();
+ areaOpen = false;
+ continue;
+ }
+
+ if (x1 == null || x2 == null)
+ continue;
+
+ // clip x values
+
+ // clip with xmin
+ if (x1 <= x2 && x1 < axisx.min) {
+ if (x2 < axisx.min)
+ continue;
+ y1 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1;
+ x1 = axisx.min;
+ }
+ else if (x2 <= x1 && x2 < axisx.min) {
+ if (x1 < axisx.min)
+ continue;
+ y2 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1;
+ x2 = axisx.min;
+ }
+
+ // clip with xmax
+ if (x1 >= x2 && x1 > axisx.max) {
+ if (x2 > axisx.max)
+ continue;
+ y1 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1;
+ x1 = axisx.max;
+ }
+ else if (x2 >= x1 && x2 > axisx.max) {
+ if (x1 > axisx.max)
+ continue;
+ y2 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1;
+ x2 = axisx.max;
+ }
+
+ if (!areaOpen) {
+ // open area
+ ctx.beginPath();
+ ctx.moveTo(axisx.p2c(x1), axisy.p2c(bottom));
+ areaOpen = true;
+ }
+
+ // now first check the case where both is outside
+ if (y1 >= axisy.max && y2 >= axisy.max) {
+ ctx.lineTo(axisx.p2c(x1), axisy.p2c(axisy.max));
+ ctx.lineTo(axisx.p2c(x2), axisy.p2c(axisy.max));
+ lastX = x2;
+ continue;
+ }
+ else if (y1 <= axisy.min && y2 <= axisy.min) {
+ ctx.lineTo(axisx.p2c(x1), axisy.p2c(axisy.min));
+ ctx.lineTo(axisx.p2c(x2), axisy.p2c(axisy.min));
+ lastX = x2;
+ continue;
+ }
+
+ // else it's a bit more complicated, there might
+ // be two rectangles and two triangles we need to fill
+ // in; to find these keep track of the current x values
+ var x1old = x1, x2old = x2;
+
+ // and clip the y values, without shortcutting
+
+ // clip with ymin
+ if (y1 <= y2 && y1 < axisy.min && y2 >= axisy.min) {
+ x1 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1;
+ y1 = axisy.min;
+ }
+ else if (y2 <= y1 && y2 < axisy.min && y1 >= axisy.min) {
+ x2 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1;
+ y2 = axisy.min;
+ }
+
+ // clip with ymax
+ if (y1 >= y2 && y1 > axisy.max && y2 <= axisy.max) {
+ x1 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1;
+ y1 = axisy.max;
+ }
+ else if (y2 >= y1 && y2 > axisy.max && y1 <= axisy.max) {
+ x2 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1;
+ y2 = axisy.max;
+ }
+
+
+ // if the x value was changed we got a rectangle
+ // to fill
+ if (x1 != x1old) {
+ if (y1 <= axisy.min)
+ top = axisy.min;
+ else
+ top = axisy.max;
+
+ ctx.lineTo(axisx.p2c(x1old), axisy.p2c(top));
+ ctx.lineTo(axisx.p2c(x1), axisy.p2c(top));
+ }
+
+ // fill the triangles
+ ctx.lineTo(axisx.p2c(x1), axisy.p2c(y1));
+ ctx.lineTo(axisx.p2c(x2), axisy.p2c(y2));
+
+ // fill the other rectangle if it's there
+ if (x2 != x2old) {
+ if (y2 <= axisy.min)
+ top = axisy.min;
+ else
+ top = axisy.max;
+
+ ctx.lineTo(axisx.p2c(x2), axisy.p2c(top));
+ ctx.lineTo(axisx.p2c(x2old), axisy.p2c(top));
+ }
+
+ lastX = Math.max(x2, x2old);
+ }
+
+ if (areaOpen) {
+ ctx.lineTo(axisx.p2c(lastX), axisy.p2c(bottom));
+ ctx.fill();
+ }
+ }
+
+ ctx.save();
+ ctx.translate(plotOffset.left, plotOffset.top);
+ ctx.lineJoin = "round";
+
+ var lw = series.lines.lineWidth,
+ sw = series.shadowSize;
+ // FIXME: consider another form of shadow when filling is turned on
+ if (lw > 0 && sw > 0) {
+ // draw shadow as a thick and thin line with transparency
+ ctx.lineWidth = sw;
+ ctx.strokeStyle = "rgba(0,0,0,0.1)";
+ // position shadow at angle from the mid of line
+ var angle = Math.PI/18;
+ plotLine(series.datapoints, Math.sin(angle) * (lw/2 + sw/2), Math.cos(angle) * (lw/2 + sw/2), series.xaxis, series.yaxis);
+ ctx.lineWidth = sw/2;
+ plotLine(series.datapoints, Math.sin(angle) * (lw/2 + sw/4), Math.cos(angle) * (lw/2 + sw/4), series.xaxis, series.yaxis);
+ }
+
+ ctx.lineWidth = lw;
+ ctx.strokeStyle = series.color;
+ var fillStyle = getFillStyle(series.lines, series.color, 0, plotHeight);
+ if (fillStyle) {
+ ctx.fillStyle = fillStyle;
+ plotLineArea(series.datapoints, series.xaxis, series.yaxis);
+ }
+
+ if (lw > 0)
+ plotLine(series.datapoints, 0, 0, series.xaxis, series.yaxis);
+ ctx.restore();
+ }
+
+ function drawSeriesPoints(series) {
+ function plotPoints(datapoints, radius, fillStyle, offset, circumference, axisx, axisy) {
+ var points = datapoints.points, ps = datapoints.pointsize;
+
+ for (var i = 0; i < points.length; i += ps) {
+ var x = points[i], y = points[i + 1];
+ if (x == null || x < axisx.min || x > axisx.max || y < axisy.min || y > axisy.max)
+ continue;
+
+ ctx.beginPath();
+ ctx.arc(axisx.p2c(x), axisy.p2c(y) + offset, radius, 0, circumference, false);
+ if (fillStyle) {
+ ctx.fillStyle = fillStyle;
+ ctx.fill();
+ }
+ ctx.stroke();
+ }
+ }
+
+ ctx.save();
+ ctx.translate(plotOffset.left, plotOffset.top);
+
+ var lw = series.lines.lineWidth,
+ sw = series.shadowSize,
+ radius = series.points.radius;
+ if (lw > 0 && sw > 0) {
+ // draw shadow in two steps
+ var w = sw / 2;
+ ctx.lineWidth = w;
+ ctx.strokeStyle = "rgba(0,0,0,0.1)";
+ plotPoints(series.datapoints, radius, null, w + w/2, Math.PI,
+ series.xaxis, series.yaxis);
+
+ ctx.strokeStyle = "rgba(0,0,0,0.2)";
+ plotPoints(series.datapoints, radius, null, w/2, Math.PI,
+ series.xaxis, series.yaxis);
+ }
+
+ ctx.lineWidth = lw;
+ ctx.strokeStyle = series.color;
+ plotPoints(series.datapoints, radius,
+ getFillStyle(series.points, series.color), 0, 2 * Math.PI,
+ series.xaxis, series.yaxis);
+ ctx.restore();
+ }
+
+ function drawBar(x, y, b, barLeft, barRight, offset, fillStyleCallback, axisx, axisy, c, horizontal) {
+ var left, right, bottom, top,
+ drawLeft, drawRight, drawTop, drawBottom,
+ tmp;
+
+ if (horizontal) {
+ drawBottom = drawRight = drawTop = true;
+ drawLeft = false;
+ left = b;
+ right = x;
+ top = y + barLeft;
+ bottom = y + barRight;
+
+ // account for negative bars
+ if (right < left) {
+ tmp = right;
+ right = left;
+ left = tmp;
+ drawLeft = true;
+ drawRight = false;
+ }
+ }
+ else {
+ drawLeft = drawRight = drawTop = true;
+ drawBottom = false;
+ left = x + barLeft;
+ right = x + barRight;
+ bottom = b;
+ top = y;
+
+ // account for negative bars
+ if (top < bottom) {
+ tmp = top;
+ top = bottom;
+ bottom = tmp;
+ drawBottom = true;
+ drawTop = false;
+ }
+ }
+
+ // clip
+ if (right < axisx.min || left > axisx.max ||
+ top < axisy.min || bottom > axisy.max)
+ return;
+
+ if (left < axisx.min) {
+ left = axisx.min;
+ drawLeft = false;
+ }
+
+ if (right > axisx.max) {
+ right = axisx.max;
+ drawRight = false;
+ }
+
+ if (bottom < axisy.min) {
+ bottom = axisy.min;
+ drawBottom = false;
+ }
+
+ if (top > axisy.max) {
+ top = axisy.max;
+ drawTop = false;
+ }
+
+ left = axisx.p2c(left);
+ bottom = axisy.p2c(bottom);
+ right = axisx.p2c(right);
+ top = axisy.p2c(top);
+
+ // fill the bar
+ if (fillStyleCallback) {
+ c.beginPath();
+ c.moveTo(left, bottom);
+ c.lineTo(left, top);
+ c.lineTo(right, top);
+ c.lineTo(right, bottom);
+ c.fillStyle = fillStyleCallback(bottom, top);
+ c.fill();
+ }
+
+ // draw outline
+ if (drawLeft || drawRight || drawTop || drawBottom) {
+ c.beginPath();
+
+ // FIXME: inline moveTo is buggy with excanvas
+ c.moveTo(left, bottom + offset);
+ if (drawLeft)
+ c.lineTo(left, top + offset);
+ else
+ c.moveTo(left, top + offset);
+ if (drawTop)
+ c.lineTo(right, top + offset);
+ else
+ c.moveTo(right, top + offset);
+ if (drawRight)
+ c.lineTo(right, bottom + offset);
+ else
+ c.moveTo(right, bottom + offset);
+ if (drawBottom)
+ c.lineTo(left, bottom + offset);
+ else
+ c.moveTo(left, bottom + offset);
+ c.stroke();
+ }
+ }
+
+ function drawSeriesBars(series) {
+ function plotBars(datapoints, barLeft, barRight, offset, fillStyleCallback, axisx, axisy) {
+ var points = datapoints.points, ps = datapoints.pointsize;
+
+ for (var i = 0; i < points.length; i += ps) {
+ if (points[i] == null)
+ continue;
+ drawBar(points[i], points[i + 1], points[i + 2], barLeft, barRight, offset, fillStyleCallback, axisx, axisy, ctx, series.bars.horizontal);
+ }
+ }
+
+ ctx.save();
+ ctx.translate(plotOffset.left, plotOffset.top);
+
+ // FIXME: figure out a way to add shadows (for instance along the right edge)
+ ctx.lineWidth = series.bars.lineWidth;
+ ctx.strokeStyle = series.color;
+ var barLeft = series.bars.align == "left" ? 0 : -series.bars.barWidth/2;
+ var fillStyleCallback = series.bars.fill ? function (bottom, top) { return getFillStyle(series.bars, series.color, bottom, top); } : null;
+ plotBars(series.datapoints, barLeft, barLeft + series.bars.barWidth, 0, fillStyleCallback, series.xaxis, series.yaxis);
+ ctx.restore();
+ }
+
+ function getFillStyle(filloptions, seriesColor, bottom, top) {
+ var fill = filloptions.fill;
+ if (!fill)
+ return null;
+
+ if (filloptions.fillColor)
+ return getColorOrGradient(filloptions.fillColor, bottom, top, seriesColor);
+
+ var c = $.color.parse(seriesColor);
+ c.a = typeof fill == "number" ? fill : 0.4;
+ c.normalize();
+ return c.toString();
+ }
+
+ function insertLegend() {
+ placeholder.find(".legend").remove();
+
+ if (!options.legend.show)
+ return;
+
+ var fragments = [], rowStarted = false,
+ lf = options.legend.labelFormatter, s, label;
+ for (i = 0; i < series.length; ++i) {
+ s = series[i];
+ label = s.label;
+ if (!label)
+ continue;
+
+ if (i % options.legend.noColumns == 0) {
+ if (rowStarted)
+ fragments.push('</tr>');
+ fragments.push('<tr>');
+ rowStarted = true;
+ }
+
+ if (lf)
+ label = lf(label, s);
+
+ fragments.push(
+ '<td class="legendColorBox"><div style="border:1px solid ' + options.legend.labelBoxBorderColor + ';padding:1px"><div style="width:4px;height:0;border:5px solid ' + s.color + ';overflow:hidden"></div></div></td>' +
+ '<td class="legendLabel">' + label + '</td>');
+ }
+ if (rowStarted)
+ fragments.push('</tr>');
+
+ if (fragments.length == 0)
+ return;
+
+ var table = '<table style="font-size:smaller;color:' + options.grid.color + '">' + fragments.join("") + '</table>';
+ if (options.legend.container != null)
+ $(options.legend.container).html(table);
+ else {
+ var pos = "",
+ p = options.legend.position,
+ m = options.legend.margin;
+ if (m[0] == null)
+ m = [m, m];
+ if (p.charAt(0) == "n")
+ pos += 'top:' + (m[1] + plotOffset.top) + 'px;';
+ else if (p.charAt(0) == "s")
+ pos += 'bottom:' + (m[1] + plotOffset.bottom) + 'px;';
+ if (p.charAt(1) == "e")
+ pos += 'right:' + (m[0] + plotOffset.right) + 'px;';
+ else if (p.charAt(1) == "w")
+ pos += 'left:' + (m[0] + plotOffset.left) + 'px;';
+ var legend = $('<div class="legend">' + table.replace('style="', 'style="position:absolute;' + pos +';') + '</div>').appendTo(placeholder);
+ if (options.legend.backgroundOpacity != 0.0) {
+ // put in the transparent background
+ // separately to avoid blended labels and
+ // label boxes
+ var c = options.legend.backgroundColor;
+ if (c == null) {
+ c = options.grid.backgroundColor;
+ if (c && typeof c == "string")
+ c = $.color.parse(c);
+ else
+ c = $.color.extract(legend, 'background-color');
+ c.a = 1;
+ c = c.toString();
+ }
+ var div = legend.children();
+ $('<div style="position:absolute;width:' + div.width() + 'px;height:' + div.height() + 'px;' + pos +'background-color:' + c + ';"> </div>').prependTo(legend).css('opacity', options.legend.backgroundOpacity);
+ }
+ }
+ }
+
+
+ // interactive features
+
+ var highlights = [],
+ redrawTimeout = null;
+
+ // returns the data item the mouse is over, or null if none is found
+ function findNearbyItem(mouseX, mouseY, seriesFilter) {
+ var maxDistance = options.grid.mouseActiveRadius,
+ smallestDistance = maxDistance * maxDistance + 1,
+ item = null, foundPoint = false, i, j;
+
+ for (i = 0; i < series.length; ++i) {
+ if (!seriesFilter(series[i]))
+ continue;
+
+ var s = series[i],
+ axisx = s.xaxis,
+ axisy = s.yaxis,
+ points = s.datapoints.points,
+ ps = s.datapoints.pointsize,
+ mx = axisx.c2p(mouseX), // precompute some stuff to make the loop faster
+ my = axisy.c2p(mouseY),
+ maxx = maxDistance / axisx.scale,
+ maxy = maxDistance / axisy.scale;
+
+ if (s.lines.show || s.points.show) {
+ for (j = 0; j < points.length; j += ps) {
+ var x = points[j], y = points[j + 1];
+ if (x == null)
+ continue;
+
+ // For points and lines, the cursor must be within a
+ // certain distance to the data point
+ if (x - mx > maxx || x - mx < -maxx ||
+ y - my > maxy || y - my < -maxy)
+ continue;
+
+ // We have to calculate distances in pixels, not in
+ // data units, because the scales of the axes may be different
+ var dx = Math.abs(axisx.p2c(x) - mouseX),
+ dy = Math.abs(axisy.p2c(y) - mouseY),
+ dist = dx * dx + dy * dy; // we save the sqrt
+
+ // use <= to ensure last point takes precedence
+ // (last generally means on top of)
+ if (dist <= smallestDistance) {
+ smallestDistance = dist;
+ item = [i, j / ps];
+ }
+ }
+ }
+
+ if (s.bars.show && !item) { // no other point can be nearby
+ var barLeft = s.bars.align == "left" ? 0 : -s.bars.barWidth/2,
+ barRight = barLeft + s.bars.barWidth;
+
+ for (j = 0; j < points.length; j += ps) {
+ var x = points[j], y = points[j + 1], b = points[j + 2];
+ if (x == null)
+ continue;
+
+ // for a bar graph, the cursor must be inside the bar
+ if (series[i].bars.horizontal ?
+ (mx <= Math.max(b, x) && mx >= Math.min(b, x) &&
+ my >= y + barLeft && my <= y + barRight) :
+ (mx >= x + barLeft && mx <= x + barRight &&
+ my >= Math.min(b, y) && my <= Math.max(b, y)))
+ item = [i, j / ps];
+ }
+ }
+ }
+
+ if (item) {
+ i = item[0];
+ j = item[1];
+ ps = series[i].datapoints.pointsize;
+
+ return { datapoint: series[i].datapoints.points.slice(j * ps, (j + 1) * ps),
+ dataIndex: j,
+ series: series[i],
+ seriesIndex: i };
+ }
+
+ return null;
+ }
+
+ function onMouseMove(e) {
+ if (options.grid.hoverable)
+ triggerClickHoverEvent("plothover", e,
+ function (s) { return s["hoverable"] != false; });
+ }
+
+ function onClick(e) {
+ triggerClickHoverEvent("plotclick", e,
+ function (s) { return s["clickable"] != false; });
+ }
+
+ // trigger click or hover event (they send the same parameters
+ // so we share their code)
+ function triggerClickHoverEvent(eventname, event, seriesFilter) {
+ var offset = eventHolder.offset(),
+ pos = { pageX: event.pageX, pageY: event.pageY },
+ canvasX = event.pageX - offset.left - plotOffset.left,
+ canvasY = event.pageY - offset.top - plotOffset.top;
+
+ if (axes.xaxis.used)
+ pos.x = axes.xaxis.c2p(canvasX);
+ if (axes.yaxis.used)
+ pos.y = axes.yaxis.c2p(canvasY);
+ if (axes.x2axis.used)
+ pos.x2 = axes.x2axis.c2p(canvasX);
+ if (axes.y2axis.used)
+ pos.y2 = axes.y2axis.c2p(canvasY);
+
+ var item = findNearbyItem(canvasX, canvasY, seriesFilter);
+
+ if (item) {
+ // fill in mouse pos for any listeners out there
+ item.pageX = parseInt(item.series.xaxis.p2c(item.datapoint[0]) + offset.left + plotOffset.left);
+ item.pageY = parseInt(item.series.yaxis.p2c(item.datapoint[1]) + offset.top + plotOffset.top);
+ }
+
+ if (options.grid.autoHighlight) {
+ // clear auto-highlights
+ for (var i = 0; i < highlights.length; ++i) {
+ var h = highlights[i];
+ if (h.auto == eventname &&
+ !(item && h.series == item.series && h.point == item.datapoint))
+ unhighlight(h.series, h.point);
+ }
+
+ if (item)
+ highlight(item.series, item.datapoint, eventname);
+ }
+
+ placeholder.trigger(eventname, [ pos, item ]);
+ }
+
+ function triggerRedrawOverlay() {
+ if (!redrawTimeout)
+ redrawTimeout = setTimeout(drawOverlay, 30);
+ }
+
+ function drawOverlay() {
+ redrawTimeout = null;
+
+ // draw highlights
+ octx.save();
+ octx.clearRect(0, 0, canvasWidth, canvasHeight);
+ octx.translate(plotOffset.left, plotOffset.top);
+
+ var i, hi;
+ for (i = 0; i < highlights.length; ++i) {
+ hi = highlights[i];
+
+ if (hi.series.bars.show)
+ drawBarHighlight(hi.series, hi.point);
+ else
+ drawPointHighlight(hi.series, hi.point);
+ }
+ octx.restore();
+
+ executeHooks(hooks.drawOverlay, [octx]);
+ }
+
+ function highlight(s, point, auto) {
+ if (typeof s == "number")
+ s = series[s];
+
+ if (typeof point == "number")
+ point = s.data[point];
+
+ var i = indexOfHighlight(s, point);
+ if (i == -1) {
+ highlights.push({ series: s, point: point, auto: auto });
+
+ triggerRedrawOverlay();
+ }
+ else if (!auto)
+ highlights[i].auto = false;
+ }
+
+ function unhighlight(s, point) {
+ if (s == null && point == null) {
+ highlights = [];
+ triggerRedrawOverlay();
+ }
+
+ if (typeof s == "number")
+ s = series[s];
+
+ if (typeof point == "number")
+ point = s.data[point];
+
+ var i = indexOfHighlight(s, point);
+ if (i != -1) {
+ highlights.splice(i, 1);
+
+ triggerRedrawOverlay();
+ }
+ }
+
+ function indexOfHighlight(s, p) {
+ for (var i = 0; i < highlights.length; ++i) {
+ var h = highlights[i];
+ if (h.series == s && h.point[0] == p[0]
+ && h.point[1] == p[1])
+ return i;
+ }
+ return -1;
+ }
+
+ function drawPointHighlight(series, point) {
+ var x = point[0], y = point[1],
+ axisx = series.xaxis, axisy = series.yaxis;
+
+ if (x < axisx.min || x > axisx.max || y < axisy.min || y > axisy.max)
+ return;
+
+ var pointRadius = series.points.radius + series.points.lineWidth / 2;
+ octx.lineWidth = pointRadius;
+ octx.strokeStyle = $.color.parse(series.color).scale('a', 0.5).toString();
+ var radius = 1.5 * pointRadius;
+ octx.beginPath();
+ octx.arc(axisx.p2c(x), axisy.p2c(y), radius, 0, 2 * Math.PI, false);
+ octx.stroke();
+ }
+
+ function drawBarHighlight(series, point) {
+ octx.lineWidth = series.bars.lineWidth;
+ octx.strokeStyle = $.color.parse(series.color).scale('a', 0.5).toString();
+ var fillStyle = $.color.parse(series.color).scale('a', 0.5).toString();
+ var barLeft = series.bars.align == "left" ? 0 : -series.bars.barWidth/2;
+ drawBar(point[0], point[1], point[2] || 0, barLeft, barLeft + series.bars.barWidth,
+ 0, function () { return fillStyle; }, series.xaxis, series.yaxis, octx, series.bars.horizontal);
+ }
+
+ function getColorOrGradient(spec, bottom, top, defaultColor) {
+ if (typeof spec == "string")
+ return spec;
+ else {
+ // assume this is a gradient spec; IE currently only
+ // supports a simple vertical gradient properly, so that's
+ // what we support too
+ var gradient = ctx.createLinearGradient(0, top, 0, bottom);
+
+ for (var i = 0, l = spec.colors.length; i < l; ++i) {
+ var c = spec.colors[i];
+ if (typeof c != "string") {
+ c = $.color.parse(defaultColor).scale('rgb', c.brightness);
+ c.a *= c.opacity;
+ c = c.toString();
+ }
+ gradient.addColorStop(i / (l - 1), c);
+ }
+
+ return gradient;
+ }
+ }
+ }
+
+ $.plot = function(placeholder, data, options) {
+ var plot = new Plot($(placeholder), data, options, $.plot.plugins);
+ /*var t0 = new Date();
+ var t1 = new Date();
+ var tstr = "time used (msecs): " + (t1.getTime() - t0.getTime())
+ if (window.console)
+ console.log(tstr);
+ else
+ alert(tstr);*/
+ return plot;
+ };
+
+ $.plot.plugins = [];
+
+ // returns a string with the date d formatted according to fmt
+ $.plot.formatDate = function(d, fmt, monthNames) {
+ var leftPad = function(n) {
+ n = "" + n;
+ return n.length == 1 ? "0" + n : n;
+ };
+
+ var r = [];
+ var escape = false;
+ var hours = d.getUTCHours();
+ var isAM = hours < 12;
+ if (monthNames == null)
+ monthNames = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"];
+
+ if (fmt.search(/%p|%P/) != -1) {
+ if (hours > 12) {
+ hours = hours - 12;
+ } else if (hours == 0) {
+ hours = 12;
+ }
+ }
+ for (var i = 0; i < fmt.length; ++i) {
+ var c = fmt.charAt(i);
+
+ if (escape) {
+ switch (c) {
+ case 'h': c = "" + hours; break;
+ case 'H': c = leftPad(hours); break;
+ case 'M': c = leftPad(d.getUTCMinutes()); break;
+ case 'S': c = leftPad(d.getUTCSeconds()); break;
+ case 'd': c = "" + d.getUTCDate(); break;
+ case 'm': c = "" + (d.getUTCMonth() + 1); break;
+ case 'y': c = "" + d.getUTCFullYear(); break;
+ case 'b': c = "" + monthNames[d.getUTCMonth()]; break;
+ case 'p': c = (isAM) ? ("" + "am") : ("" + "pm"); break;
+ case 'P': c = (isAM) ? ("" + "AM") : ("" + "PM"); break;
+ }
+ r.push(c);
+ escape = false;
+ }
+ else {
+ if (c == "%")
+ escape = true;
+ else
+ r.push(c);
+ }
+ }
+ return r.join("");
+ };
+
+ // round to nearby lower multiple of base
+ function floorInBase(n, base) {
+ return base * Math.floor(n / base);
+ }
+
+})(jQuery);