wpMandrill - Version 1.22

Version Description

  • UPDATED: Replacing Highcharts in favor of Flot
  • ADD: Cron job to fetch stats
Download this release

Release Info

Developer MC_Will
Plugin Icon wp plugin wpMandrill
Version 1.22
Comparing to
See all releases

Code changes from version 1.21 to 1.22

js/flot/LICENSE.txt ADDED
@@ -0,0 +1,22 @@
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+ Copyright (c) 2007-2009 IOLA and Ole Laursen
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+
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+ Permission is hereby granted, free of charge, to any person
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+ obtaining a copy of this software and associated documentation
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+ files (the "Software"), to deal in the Software without
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+ restriction, including without limitation the rights to use,
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+ copy, modify, merge, publish, distribute, sublicense, and/or sell
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+ copies of the Software, and to permit persons to whom the
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+ Software is furnished to do so, subject to the following
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+ conditions:
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+
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+ The above copyright notice and this permission notice shall be
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+ included in all copies or substantial portions of the Software.
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+
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+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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+ OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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+ HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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+ WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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+ FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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+ OTHER DEALINGS IN THE SOFTWARE.
js/flot/jquery.flot.js ADDED
@@ -0,0 +1,2599 @@
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+ /*! Javascript plotting library for jQuery, v. 0.7.
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+ *
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+ * Released under the MIT license by IOLA, December 2007.
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+ *
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+ */
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+
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+ // first an inline dependency, jquery.colorhelpers.js, we inline it here
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+ // for convenience
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+
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+ /* Plugin for jQuery for working with colors.
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+ *
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+ * Version 1.1.
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+ *
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+ * Inspiration from jQuery color animation plugin by John Resig.
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+ *
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+ * Released under the MIT license by Ole Laursen, October 2009.
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+ *
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+ * Examples:
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+ *
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+ * $.color.parse("#fff").scale('rgb', 0.25).add('a', -0.5).toString()
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+ * var c = $.color.extract($("#mydiv"), 'background-color');
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+ * console.log(c.r, c.g, c.b, c.a);
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+ * $.color.make(100, 50, 25, 0.4).toString() // returns "rgba(100,50,25,0.4)"
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+ *
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+ * Note that .scale() and .add() return the same modified object
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+ * instead of making a new one.
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+ *
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+ * V. 1.1: Fix error handling so e.g. parsing an empty string does
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+ * produce a color rather than just crashing.
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+ */
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+ (function(B){B.color={};B.color.make=function(F,E,C,D){var G={};G.r=F||0;G.g=E||0;G.b=C||0;G.a=D!=null?D:1;G.add=function(J,I){for(var H=0;H<J.length;++H){G[J.charAt(H)]+=I}return G.normalize()};G.scale=function(J,I){for(var H=0;H<J.length;++H){G[J.charAt(H)]*=I}return G.normalize()};G.toString=function(){if(G.a>=1){return"rgb("+[G.r,G.g,G.b].join(",")+")"}else{return"rgba("+[G.r,G.g,G.b,G.a].join(",")+")"}};G.normalize=function(){function H(J,K,I){return K<J?J:(K>I?I:K)}G.r=H(0,parseInt(G.r),255);G.g=H(0,parseInt(G.g),255);G.b=H(0,parseInt(G.b),255);G.a=H(0,G.a,1);return G};G.clone=function(){return B.color.make(G.r,G.b,G.g,G.a)};return G.normalize()};B.color.extract=function(D,C){var E;do{E=D.css(C).toLowerCase();if(E!=""&&E!="transparent"){break}D=D.parent()}while(!B.nodeName(D.get(0),"body"));if(E=="rgba(0, 0, 0, 0)"){E="transparent"}return B.color.parse(E)};B.color.parse=function(F){var E,C=B.color.make;if(E=/rgb\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*\)/.exec(F)){return C(parseInt(E[1],10),parseInt(E[2],10),parseInt(E[3],10))}if(E=/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(F)){return C(parseInt(E[1],10),parseInt(E[2],10),parseInt(E[3],10),parseFloat(E[4]))}if(E=/rgb\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*\)/.exec(F)){return C(parseFloat(E[1])*2.55,parseFloat(E[2])*2.55,parseFloat(E[3])*2.55)}if(E=/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(F)){return C(parseFloat(E[1])*2.55,parseFloat(E[2])*2.55,parseFloat(E[3])*2.55,parseFloat(E[4]))}if(E=/#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})/.exec(F)){return C(parseInt(E[1],16),parseInt(E[2],16),parseInt(E[3],16))}if(E=/#([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])/.exec(F)){return C(parseInt(E[1]+E[1],16),parseInt(E[2]+E[2],16),parseInt(E[3]+E[3],16))}var D=B.trim(F).toLowerCase();if(D=="transparent"){return C(255,255,255,0)}else{E=A[D]||[0,0,0];return C(E[0],E[1],E[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]}})(jQuery);
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+
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+ // the actual Flot code
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+ (function($) {
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+ function Plot(placeholder, data_, options_, plugins) {
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+ // data is on the form:
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+ // [ series1, series2 ... ]
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+ // where series is either just the data as [ [x1, y1], [x2, y2], ... ]
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+ // or { data: [ [x1, y1], [x2, y2], ... ], label: "some label", ... }
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+
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+ var series = [],
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+ options = {
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+ // the color theme used for graphs
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+ colors: ["#edc240", "#afd8f8", "#cb4b4b", "#4da74d", "#9440ed"],
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+ legend: {
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+ show: true,
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+ noColumns: 1, // number of colums in legend table
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+ labelFormatter: null, // fn: string -> string
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+ labelBoxBorderColor: "#ccc", // border color for the little label boxes
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+ container: null, // container (as jQuery object) to put legend in, null means default on top of graph
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+ position: "ne", // position of default legend container within plot
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+ margin: 5, // distance from grid edge to default legend container within plot
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+ backgroundColor: null, // null means auto-detect
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+ backgroundOpacity: 0.85 // set to 0 to avoid background
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+ },
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+ xaxis: {
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+ show: null, // null = auto-detect, true = always, false = never
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+ position: "bottom", // or "top"
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+ mode: null, // null or "time"
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+ color: null, // base color, labels, ticks
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+ tickColor: null, // possibly different color of ticks, e.g. "rgba(0,0,0,0.15)"
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+ transform: null, // null or f: number -> number to transform axis
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+ inverseTransform: null, // if transform is set, this should be the inverse function
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+ min: null, // min. value to show, null means set automatically
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+ max: null, // max. value to show, null means set automatically
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+ autoscaleMargin: null, // margin in % to add if auto-setting min/max
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+ ticks: null, // either [1, 3] or [[1, "a"], 3] or (fn: axis info -> ticks) or app. number of ticks for auto-ticks
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+ tickFormatter: null, // fn: number -> string
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+ labelWidth: null, // size of tick labels in pixels
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+ labelHeight: null,
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+ reserveSpace: null, // whether to reserve space even if axis isn't shown
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+ tickLength: null, // size in pixels of ticks, or "full" for whole line
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+ alignTicksWithAxis: null, // axis number or null for no sync
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+
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+ // mode specific options
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+ tickDecimals: null, // no. of decimals, null means auto
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+ tickSize: null, // number or [number, "unit"]
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+ minTickSize: null, // number or [number, "unit"]
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+ monthNames: null, // list of names of months
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+ timeformat: null, // format string to use
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+ twelveHourClock: false // 12 or 24 time in time mode
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+ },
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+ yaxis: {
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+ autoscaleMargin: 0.02,
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+ position: "left" // or "right"
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+ },
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+ xaxes: [],
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+ yaxes: [],
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+ series: {
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+ points: {
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+ show: false,
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+ radius: 3,
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+ lineWidth: 2, // in pixels
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+ fill: true,
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+ fillColor: "#ffffff",
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+ symbol: "circle" // or callback
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+ },
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+ lines: {
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+ // we don't put in show: false so we can see
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+ // whether lines were actively disabled
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+ lineWidth: 2, // in pixels
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+ fill: false,
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+ fillColor: null,
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+ steps: false
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+ },
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+ bars: {
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+ show: false,
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+ lineWidth: 2, // in pixels
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+ barWidth: 1, // in units of the x axis
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+ fill: true,
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+ fillColor: null,
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+ align: "left", // or "center"
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+ horizontal: false
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+ },
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+ shadowSize: 3
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+ },
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+ grid: {
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+ show: true,
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+ aboveData: false,
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+ color: "#545454", // primary color used for outline and labels
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+ backgroundColor: null, // null for transparent, else color
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+ borderColor: null, // set if different from the grid color
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+ tickColor: null, // color for the ticks, e.g. "rgba(0,0,0,0.15)"
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+ labelMargin: 5, // in pixels
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+ axisMargin: 8, // in pixels
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+ borderWidth: 2, // in pixels
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+ minBorderMargin: null, // in pixels, null means taken from points radius
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+ markings: null, // array of ranges or fn: axes -> array of ranges
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+ markingsColor: "#f4f4f4",
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+ markingsLineWidth: 2,
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+ // interactive stuff
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+ clickable: false,
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+ hoverable: false,
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+ autoHighlight: true, // highlight in case mouse is near
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+ mouseActiveRadius: 10 // how far the mouse can be away to activate an item
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+ },
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+ hooks: {}
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+ },
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+ canvas = null, // the canvas for the plot itself
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+ overlay = null, // canvas for interactive stuff on top of plot
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+ eventHolder = null, // jQuery object that events should be bound to
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+ ctx = null, octx = null,
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+ xaxes = [], yaxes = [],
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+ plotOffset = { left: 0, right: 0, top: 0, bottom: 0},
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+ canvasWidth = 0, canvasHeight = 0,
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+ plotWidth = 0, plotHeight = 0,
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+ hooks = {
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+ processOptions: [],
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+ processRawData: [],
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+ processDatapoints: [],
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+ drawSeries: [],
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+ draw: [],
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+ bindEvents: [],
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+ drawOverlay: [],
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+ shutdown: []
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+ },
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+ plot = this;
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+
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+ // public functions
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+ plot.setData = setData;
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+ plot.setupGrid = setupGrid;
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+ plot.draw = draw;
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+ plot.getPlaceholder = function() { return placeholder; };
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+ plot.getCanvas = function() { return canvas; };
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+ plot.getPlotOffset = function() { return plotOffset; };
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+ plot.width = function () { return plotWidth; };
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+ plot.height = function () { return plotHeight; };
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+ plot.offset = function () {
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+ var o = eventHolder.offset();
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+ o.left += plotOffset.left;
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+ o.top += plotOffset.top;
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+ return o;
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+ };
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+ plot.getData = function () { return series; };
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+ plot.getAxes = function () {
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+ var res = {}, i;
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+ $.each(xaxes.concat(yaxes), function (_, axis) {
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+ if (axis)
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+ res[axis.direction + (axis.n != 1 ? axis.n : "") + "axis"] = axis;
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+ });
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+ return res;
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+ };
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+ plot.getXAxes = function () { return xaxes; };
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+ plot.getYAxes = function () { return yaxes; };
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+ plot.c2p = canvasToAxisCoords;
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+ plot.p2c = axisToCanvasCoords;
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+ plot.getOptions = function () { return options; };
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+ plot.highlight = highlight;
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+ plot.unhighlight = unhighlight;
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+ plot.triggerRedrawOverlay = triggerRedrawOverlay;
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+ plot.pointOffset = function(point) {
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+ return {
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+ left: parseInt(xaxes[axisNumber(point, "x") - 1].p2c(+point.x) + plotOffset.left),
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+ top: parseInt(yaxes[axisNumber(point, "y") - 1].p2c(+point.y) + plotOffset.top)
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+ };
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+ };
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+ plot.shutdown = shutdown;
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+ plot.resize = function () {
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+ getCanvasDimensions();
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+ resizeCanvas(canvas);
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+ resizeCanvas(overlay);
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+ };
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+
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+ // public attributes
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+ plot.hooks = hooks;
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+
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+ // initialize
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+ initPlugins(plot);
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+ parseOptions(options_);
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+ setupCanvases();
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+ setData(data_);
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+ setupGrid();
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+ draw();
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+ bindEvents();
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+
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+
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+ function executeHooks(hook, args) {
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+ args = [plot].concat(args);
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+ for (var i = 0; i < hook.length; ++i)
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+ hook[i].apply(this, args);
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+ }
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+
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+ function initPlugins() {
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+ for (var i = 0; i < plugins.length; ++i) {
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+ var p = plugins[i];
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+ p.init(plot);
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+ if (p.options)
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+ $.extend(true, options, p.options);
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+ }
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+ }
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+
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+ function parseOptions(opts) {
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+ var i;
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+
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+ $.extend(true, options, opts);
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+
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+ if (options.xaxis.color == null)
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+ options.xaxis.color = options.grid.color;
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+ if (options.yaxis.color == null)
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+ options.yaxis.color = options.grid.color;
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+
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+ if (options.xaxis.tickColor == null) // backwards-compatibility
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+ options.xaxis.tickColor = options.grid.tickColor;
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+ if (options.yaxis.tickColor == null) // backwards-compatibility
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+ options.yaxis.tickColor = options.grid.tickColor;
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+
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+ if (options.grid.borderColor == null)
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+ options.grid.borderColor = options.grid.color;
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+ if (options.grid.tickColor == null)
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+ options.grid.tickColor = $.color.parse(options.grid.color).scale('a', 0.22).toString();
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+
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+ // fill in defaults in axes, copy at least always the
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+ // first as the rest of the code assumes it'll be there
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+ for (i = 0; i < Math.max(1, options.xaxes.length); ++i)
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+ options.xaxes[i] = $.extend(true, {}, options.xaxis, options.xaxes[i]);
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+ for (i = 0; i < Math.max(1, options.yaxes.length); ++i)
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+ options.yaxes[i] = $.extend(true, {}, options.yaxis, options.yaxes[i]);
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+
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+ // backwards compatibility, to be removed in future
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+ if (options.xaxis.noTicks && options.xaxis.ticks == null)
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+ options.xaxis.ticks = options.xaxis.noTicks;
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+ if (options.yaxis.noTicks && options.yaxis.ticks == null)
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+ options.yaxis.ticks = options.yaxis.noTicks;
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+ if (options.x2axis) {
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+ options.xaxes[1] = $.extend(true, {}, options.xaxis, options.x2axis);
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+ options.xaxes[1].position = "top";
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+ }
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+ if (options.y2axis) {
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+ options.yaxes[1] = $.extend(true, {}, options.yaxis, options.y2axis);
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+ options.yaxes[1].position = "right";
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+ }
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+ if (options.grid.coloredAreas)
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+ options.grid.markings = options.grid.coloredAreas;
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+ if (options.grid.coloredAreasColor)
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+ options.grid.markingsColor = options.grid.coloredAreasColor;
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+ if (options.lines)
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+ $.extend(true, options.series.lines, options.lines);
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+ if (options.points)
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+ $.extend(true, options.series.points, options.points);
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+ if (options.bars)
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+ $.extend(true, options.series.bars, options.bars);
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+ if (options.shadowSize != null)
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+ options.series.shadowSize = options.shadowSize;
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+
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+ // save options on axes for future reference
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+ for (i = 0; i < options.xaxes.length; ++i)
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+ getOrCreateAxis(xaxes, i + 1).options = options.xaxes[i];
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+ for (i = 0; i < options.yaxes.length; ++i)
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+ getOrCreateAxis(yaxes, i + 1).options = options.yaxes[i];
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+
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+ // add hooks from options
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+ for (var n in hooks)
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+ if (options.hooks[n] && options.hooks[n].length)
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+ hooks[n] = hooks[n].concat(options.hooks[n]);
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+
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+ executeHooks(hooks.processOptions, [options]);
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+ }
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+
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+ function setData(d) {
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+ series = parseData(d);
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+ fillInSeriesOptions();
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+ processData();
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+ }
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+
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+ function parseData(d) {
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+ var res = [];
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+ for (var i = 0; i < d.length; ++i) {
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+ var s = $.extend(true, {}, options.series);
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+
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+ if (d[i].data != null) {
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+ s.data = d[i].data; // move the data instead of deep-copy
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+ delete d[i].data;
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+
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+ $.extend(true, s, d[i]);
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+
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+ d[i].data = s.data;
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+ }
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+ else
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+ s.data = d[i];
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+ res.push(s);
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+ }
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+
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+ return res;
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+ }
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+
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+ function axisNumber(obj, coord) {
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+ var a = obj[coord + "axis"];
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+ if (typeof a == "object") // if we got a real axis, extract number
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+ a = a.n;
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+ if (typeof a != "number")
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+ a = 1; // default to first axis
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+ return a;
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+ }
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+
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+ function allAxes() {
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+ // return flat array without annoying null entries
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+ return $.grep(xaxes.concat(yaxes), function (a) { return a; });
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+ }
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+
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+ function canvasToAxisCoords(pos) {
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+ // return an object with x/y corresponding to all used axes
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+ var res = {}, i, axis;
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+ for (i = 0; i < xaxes.length; ++i) {
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+ axis = xaxes[i];
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+ if (axis && axis.used)
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+ res["x" + axis.n] = axis.c2p(pos.left);
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+ }
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+
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+ for (i = 0; i < yaxes.length; ++i) {
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+ axis = yaxes[i];
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+ if (axis && axis.used)
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+ res["y" + axis.n] = axis.c2p(pos.top);
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+ }
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+
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+ if (res.x1 !== undefined)
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+ res.x = res.x1;
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+ if (res.y1 !== undefined)
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+ res.y = res.y1;
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+
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+ return res;
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+ }
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+
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+ function axisToCanvasCoords(pos) {
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+ // get canvas coords from the first pair of x/y found in pos
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+ var res = {}, i, axis, key;
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+
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+ for (i = 0; i < xaxes.length; ++i) {
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+ axis = xaxes[i];
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+ if (axis && axis.used) {
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+ key = "x" + axis.n;
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+ if (pos[key] == null && axis.n == 1)
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+ key = "x";
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+
374
+ if (pos[key] != null) {
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+ res.left = axis.p2c(pos[key]);
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+ break;
377
+ }
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+ }
379
+ }
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+
381
+ for (i = 0; i < yaxes.length; ++i) {
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+ axis = yaxes[i];
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+ if (axis && axis.used) {
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+ key = "y" + axis.n;
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+ if (pos[key] == null && axis.n == 1)
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+ key = "y";
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+
388
+ if (pos[key] != null) {
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+ res.top = axis.p2c(pos[key]);
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+ break;
391
+ }
392
+ }
393
+ }
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+
395
+ return res;
396
+ }
397
+
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+ function getOrCreateAxis(axes, number) {
399
+ if (!axes[number - 1])
400
+ axes[number - 1] = {
401
+ n: number, // save the number for future reference
402
+ direction: axes == xaxes ? "x" : "y",
403
+ options: $.extend(true, {}, axes == xaxes ? options.xaxis : options.yaxis)
404
+ };
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+
406
+ return axes[number - 1];
407
+ }
408
+
409
+ function fillInSeriesOptions() {
410
+ var i;
411
+
412
+ // collect what we already got of colors
413
+ var neededColors = series.length,
414
+ usedColors = [],
415
+ assignedColors = [];
416
+ for (i = 0; i < series.length; ++i) {
417
+ var sc = series[i].color;
418
+ if (sc != null) {
419
+ --neededColors;
420
+ if (typeof sc == "number")
421
+ assignedColors.push(sc);
422
+ else
423
+ usedColors.push($.color.parse(series[i].color));
424
+ }
425
+ }
426
+
427
+ // we might need to generate more colors if higher indices
428
+ // are assigned
429
+ for (i = 0; i < assignedColors.length; ++i) {
430
+ neededColors = Math.max(neededColors, assignedColors[i] + 1);
431
+ }
432
+
433
+ // produce colors as needed
434
+ var colors = [], variation = 0;
435
+ i = 0;
436
+ while (colors.length < neededColors) {
437
+ var c;
438
+ if (options.colors.length == i) // check degenerate case
439
+ c = $.color.make(100, 100, 100);
440
+ else
441
+ c = $.color.parse(options.colors[i]);
442
+
443
+ // vary color if needed
444
+ var sign = variation % 2 == 1 ? -1 : 1;
445
+ c.scale('rgb', 1 + sign * Math.ceil(variation / 2) * 0.2)
446
+
447
+ // FIXME: if we're getting to close to something else,
448
+ // we should probably skip this one
449
+ colors.push(c);
450
+
451
+ ++i;
452
+ if (i >= options.colors.length) {
453
+ i = 0;
454
+ ++variation;
455
+ }
456
+ }
457
+
458
+ // fill in the options
459
+ var colori = 0, s;
460
+ for (i = 0; i < series.length; ++i) {
461
+ s = series[i];
462
+
463
+ // assign colors
464
+ if (s.color == null) {
465
+ s.color = colors[colori].toString();
466
+ ++colori;
467
+ }
468
+ else if (typeof s.color == "number")
469
+ s.color = colors[s.color].toString();
470
+
471
+ // turn on lines automatically in case nothing is set
472
+ if (s.lines.show == null) {
473
+ var v, show = true;
474
+ for (v in s)
475
+ if (s[v] && s[v].show) {
476
+ show = false;
477
+ break;
478
+ }
479
+ if (show)
480
+ s.lines.show = true;
481
+ }
482
+
483
+ // setup axes
484
+ s.xaxis = getOrCreateAxis(xaxes, axisNumber(s, "x"));
485
+ s.yaxis = getOrCreateAxis(yaxes, axisNumber(s, "y"));
486
+ }
487
+ }
488
+
489
+ function processData() {
490
+ var topSentry = Number.POSITIVE_INFINITY,
491
+ bottomSentry = Number.NEGATIVE_INFINITY,
492
+ fakeInfinity = Number.MAX_VALUE,
493
+ i, j, k, m, length,
494
+ s, points, ps, x, y, axis, val, f, p;
495
+
496
+ function updateAxis(axis, min, max) {
497
+ if (min < axis.datamin && min != -fakeInfinity)
498
+ axis.datamin = min;
499
+ if (max > axis.datamax && max != fakeInfinity)
500
+ axis.datamax = max;
501
+ }
502
+
503
+ $.each(allAxes(), function (_, axis) {
504
+ // init axis
505
+ axis.datamin = topSentry;
506
+ axis.datamax = bottomSentry;
507
+ axis.used = false;
508
+ });
509
+
510
+ for (i = 0; i < series.length; ++i) {
511
+ s = series[i];
512
+ s.datapoints = { points: [] };
513
+
514
+ executeHooks(hooks.processRawData, [ s, s.data, s.datapoints ]);
515
+ }
516
+
517
+ // first pass: clean and copy data
518
+ for (i = 0; i < series.length; ++i) {
519
+ s = series[i];
520
+
521
+ var data = s.data, format = s.datapoints.format;
522
+
523
+ if (!format) {
524
+ format = [];
525
+ // find out how to copy
526
+ format.push({ x: true, number: true, required: true });
527
+ format.push({ y: true, number: true, required: true });
528
+
529
+ if (s.bars.show || (s.lines.show && s.lines.fill)) {
530
+ format.push({ y: true, number: true, required: false, defaultValue: 0 });
531
+ if (s.bars.horizontal) {
532
+ delete format[format.length - 1].y;
533
+ format[format.length - 1].x = true;
534
+ }
535
+ }
536
+
537
+ s.datapoints.format = format;
538
+ }
539
+
540
+ if (s.datapoints.pointsize != null)
541
+ continue; // already filled in
542
+
543
+ s.datapoints.pointsize = format.length;
544
+
545
+ ps = s.datapoints.pointsize;
546
+ points = s.datapoints.points;
547
+
548
+ insertSteps = s.lines.show && s.lines.steps;
549
+ s.xaxis.used = s.yaxis.used = true;
550
+
551
+ for (j = k = 0; j < data.length; ++j, k += ps) {
552
+ p = data[j];
553
+
554
+ var nullify = p == null;
555
+ if (!nullify) {
556
+ for (m = 0; m < ps; ++m) {
557
+ val = p[m];
558
+ f = format[m];
559
+
560
+ if (f) {
561
+ if (f.number && val != null) {
562
+ val = +val; // convert to number
563
+ if (isNaN(val))
564
+ val = null;
565
+ else if (val == Infinity)
566
+ val = fakeInfinity;
567
+ else if (val == -Infinity)
568
+ val = -fakeInfinity;
569
+ }
570
+
571
+ if (val == null) {
572
+ if (f.required)
573
+ nullify = true;
574
+
575
+ if (f.defaultValue != null)
576
+ val = f.defaultValue;
577
+ }
578
+ }
579
+
580
+ points[k + m] = val;
581
+ }
582
+ }
583
+
584
+ if (nullify) {
585
+ for (m = 0; m < ps; ++m) {
586
+ val = points[k + m];
587
+ if (val != null) {
588
+ f = format[m];
589
+ // extract min/max info
590
+ if (f.x)
591
+ updateAxis(s.xaxis, val, val);
592
+ if (f.y)
593
+ updateAxis(s.yaxis, val, val);
594
+ }
595
+ points[k + m] = null;
596
+ }
597
+ }
598
+ else {
599
+ // a little bit of line specific stuff that
600
+ // perhaps shouldn't be here, but lacking
601
+ // better means...
602
+ if (insertSteps && k > 0
603
+ && points[k - ps] != null
604
+ && points[k - ps] != points[k]
605
+ && points[k - ps + 1] != points[k + 1]) {
606
+ // copy the point to make room for a middle point
607
+ for (m = 0; m < ps; ++m)
608
+ points[k + ps + m] = points[k + m];
609
+
610
+ // middle point has same y
611
+ points[k + 1] = points[k - ps + 1];
612
+
613
+ // we've added a point, better reflect that
614
+ k += ps;
615
+ }
616
+ }
617
+ }
618
+ }
619
+
620
+ // give the hooks a chance to run
621
+ for (i = 0; i < series.length; ++i) {
622
+ s = series[i];
623
+
624
+ executeHooks(hooks.processDatapoints, [ s, s.datapoints]);
625
+ }
626
+
627
+ // second pass: find datamax/datamin for auto-scaling
628
+ for (i = 0; i < series.length; ++i) {
629
+ s = series[i];
630
+ points = s.datapoints.points,
631
+ ps = s.datapoints.pointsize;
632
+
633
+ var xmin = topSentry, ymin = topSentry,
634
+ xmax = bottomSentry, ymax = bottomSentry;
635
+
636
+ for (j = 0; j < points.length; j += ps) {
637
+ if (points[j] == null)
638
+ continue;
639
+
640
+ for (m = 0; m < ps; ++m) {
641
+ val = points[j + m];
642
+ f = format[m];
643
+ if (!f || val == fakeInfinity || val == -fakeInfinity)
644
+ continue;
645
+
646
+ if (f.x) {
647
+ if (val < xmin)
648
+ xmin = val;
649
+ if (val > xmax)
650
+ xmax = val;
651
+ }
652
+ if (f.y) {
653
+ if (val < ymin)
654
+ ymin = val;
655
+ if (val > ymax)
656
+ ymax = val;
657
+ }
658
+ }
659
+ }
660
+
661
+ if (s.bars.show) {
662
+ // make sure we got room for the bar on the dancing floor
663
+ var delta = s.bars.align == "left" ? 0 : -s.bars.barWidth/2;
664
+ if (s.bars.horizontal) {
665
+ ymin += delta;
666
+ ymax += delta + s.bars.barWidth;
667
+ }
668
+ else {
669
+ xmin += delta;
670
+ xmax += delta + s.bars.barWidth;
671
+ }
672
+ }
673
+
674
+ updateAxis(s.xaxis, xmin, xmax);
675
+ updateAxis(s.yaxis, ymin, ymax);
676
+ }
677
+
678
+ $.each(allAxes(), function (_, axis) {
679
+ if (axis.datamin == topSentry)
680
+ axis.datamin = null;
681
+ if (axis.datamax == bottomSentry)
682
+ axis.datamax = null;
683
+ });
684
+ }
685
+
686
+ function makeCanvas(skipPositioning, cls) {
687
+ var c = document.createElement('canvas');
688
+ c.className = cls;
689
+ c.width = canvasWidth;
690
+ c.height = canvasHeight;
691
+
692
+ if (!skipPositioning)
693
+ $(c).css({ position: 'absolute', left: 0, top: 0 });
694
+
695
+ $(c).appendTo(placeholder);
696
+
697
+ if (!c.getContext) // excanvas hack
698
+ c = window.G_vmlCanvasManager.initElement(c);
699
+
700
+ // used for resetting in case we get replotted
701
+ c.getContext("2d").save();
702
+
703
+ return c;
704
+ }
705
+
706
+ function getCanvasDimensions() {
707
+ canvasWidth = placeholder.width();
708
+ canvasHeight = placeholder.height();
709
+
710
+ if (canvasWidth <= 0 || canvasHeight <= 0)
711
+ throw "Invalid dimensions for plot, width = " + canvasWidth + ", height = " + canvasHeight;
712
+ }
713
+
714
+ function resizeCanvas(c) {
715
+ // resizing should reset the state (excanvas seems to be
716
+ // buggy though)
717
+ if (c.width != canvasWidth)
718
+ c.width = canvasWidth;
719
+
720
+ if (c.height != canvasHeight)
721
+ c.height = canvasHeight;
722
+
723
+ // so try to get back to the initial state (even if it's
724
+ // gone now, this should be safe according to the spec)
725
+ var cctx = c.getContext("2d");
726
+ cctx.restore();
727
+
728
+ // and save again
729
+ cctx.save();
730
+ }
731
+
732
+ function setupCanvases() {
733
+ var reused,
734
+ existingCanvas = placeholder.children("canvas.base"),
735
+ existingOverlay = placeholder.children("canvas.overlay");
736
+
737
+ if (existingCanvas.length == 0 || existingOverlay == 0) {
738
+ // init everything
739
+
740
+ placeholder.html(""); // make sure placeholder is clear
741
+
742
+ placeholder.css({ padding: 0 }); // padding messes up the positioning
743
+
744
+ if (placeholder.css("position") == 'static')
745
+ placeholder.css("position", "relative"); // for positioning labels and overlay
746
+
747
+ getCanvasDimensions();
748
+
749
+ canvas = makeCanvas(true, "base");
750
+ overlay = makeCanvas(false, "overlay"); // overlay canvas for interactive features
751
+
752
+ reused = false;
753
+ }
754
+ else {
755
+ // reuse existing elements
756
+
757
+ canvas = existingCanvas.get(0);
758
+ overlay = existingOverlay.get(0);
759
+
760
+ reused = true;
761
+ }
762
+
763
+ ctx = canvas.getContext("2d");
764
+ octx = overlay.getContext("2d");
765
+
766
+ // we include the canvas in the event holder too, because IE 7
767
+ // sometimes has trouble with the stacking order
768
+ eventHolder = $([overlay, canvas]);
769
+
770
+ if (reused) {
771
+ // run shutdown in the old plot object
772
+ placeholder.data("plot").shutdown();
773
+
774
+ // reset reused canvases
775
+ plot.resize();
776
+
777
+ // make sure overlay pixels are cleared (canvas is cleared when we redraw)
778
+ octx.clearRect(0, 0, canvasWidth, canvasHeight);
779
+
780
+ // then whack any remaining obvious garbage left
781
+ eventHolder.unbind();
782
+ placeholder.children().not([canvas, overlay]).remove();
783
+ }
784
+
785
+ // save in case we get replotted
786
+ placeholder.data("plot", plot);
787
+ }
788
+
789
+ function bindEvents() {
790
+ // bind events
791
+ if (options.grid.hoverable) {
792
+ eventHolder.mousemove(onMouseMove);
793
+ eventHolder.mouseleave(onMouseLeave);
794
+ }
795
+
796
+ if (options.grid.clickable)
797
+ eventHolder.click(onClick);
798
+
799
+ executeHooks(hooks.bindEvents, [eventHolder]);
800
+ }
801
+
802
+ function shutdown() {
803
+ if (redrawTimeout)
804
+ clearTimeout(redrawTimeout);
805
+
806
+ eventHolder.unbind("mousemove", onMouseMove);
807
+ eventHolder.unbind("mouseleave", onMouseLeave);
808
+ eventHolder.unbind("click", onClick);
809
+
810
+ executeHooks(hooks.shutdown, [eventHolder]);
811
+ }
812
+
813
+ function setTransformationHelpers(axis) {
814
+ // set helper functions on the axis, assumes plot area
815
+ // has been computed already
816
+
817
+ function identity(x) { return x; }
818
+
819
+ var s, m, t = axis.options.transform || identity,
820
+ it = axis.options.inverseTransform;
821
+
822
+ // precompute how much the axis is scaling a point
823
+ // in canvas space
824
+ if (axis.direction == "x") {
825
+ s = axis.scale = plotWidth / Math.abs(t(axis.max) - t(axis.min));
826
+ m = Math.min(t(axis.max), t(axis.min));
827
+ }
828
+ else {
829
+ s = axis.scale = plotHeight / Math.abs(t(axis.max) - t(axis.min));
830
+ s = -s;
831
+ m = Math.max(t(axis.max), t(axis.min));
832
+ }
833
+
834
+ // data point to canvas coordinate
835
+ if (t == identity) // slight optimization
836
+ axis.p2c = function (p) { return (p - m) * s; };
837
+ else
838
+ axis.p2c = function (p) { return (t(p) - m) * s; };
839
+ // canvas coordinate to data point
840
+ if (!it)
841
+ axis.c2p = function (c) { return m + c / s; };
842
+ else
843
+ axis.c2p = function (c) { return it(m + c / s); };
844
+ }
845
+
846
+ function measureTickLabels(axis) {
847
+ var opts = axis.options, i, ticks = axis.ticks || [], labels = [],
848
+ l, w = opts.labelWidth, h = opts.labelHeight, dummyDiv;
849
+
850
+ function makeDummyDiv(labels, width) {
851
+ return $('<div style="position:absolute;top:-10000px;' + width + 'font-size:smaller">' +
852
+ '<div class="' + axis.direction + 'Axis ' + axis.direction + axis.n + 'Axis">'
853
+ + labels.join("") + '</div></div>')
854
+ .appendTo(placeholder);
855
+ }
856
+
857
+ if (axis.direction == "x") {
858
+ // to avoid measuring the widths of the labels (it's slow), we
859
+ // construct fixed-size boxes and put the labels inside
860
+ // them, we don't need the exact figures and the
861
+ // fixed-size box content is easy to center
862
+ if (w == null)
863
+ w = Math.floor(canvasWidth / (ticks.length > 0 ? ticks.length : 1));
864
+
865
+ // measure x label heights
866
+ if (h == null) {
867
+ labels = [];
868
+ for (i = 0; i < ticks.length; ++i) {
869
+ l = ticks[i].label;
870
+ if (l)
871
+ labels.push('<div class="tickLabel" style="float:left;width:' + w + 'px">' + l + '</div>');
872
+ }
873
+
874
+ if (labels.length > 0) {
875
+ // stick them all in the same div and measure
876
+ // collective height
877
+ labels.push('<div style="clear:left"></div>');
878
+ dummyDiv = makeDummyDiv(labels, "width:10000px;");
879
+ h = dummyDiv.height();
880
+ dummyDiv.remove();
881
+ }
882
+ }
883
+ }
884
+ else if (w == null || h == null) {
885
+ // calculate y label dimensions
886
+ for (i = 0; i < ticks.length; ++i) {
887
+ l = ticks[i].label;
888
+ if (l)
889
+ labels.push('<div class="tickLabel">' + l + '</div>');
890
+ }
891
+
892
+ if (labels.length > 0) {
893
+ dummyDiv = makeDummyDiv(labels, "");
894
+ if (w == null)
895
+ w = dummyDiv.children().width();
896
+ if (h == null)
897
+ h = dummyDiv.find("div.tickLabel").height();
898
+ dummyDiv.remove();
899
+ }
900
+ }
901
+
902
+ if (w == null)
903
+ w = 0;
904
+ if (h == null)
905
+ h = 0;
906
+
907
+ axis.labelWidth = w;
908
+ axis.labelHeight = h;
909
+ }
910
+
911
+ function allocateAxisBoxFirstPhase(axis) {
912
+ // find the bounding box of the axis by looking at label
913
+ // widths/heights and ticks, make room by diminishing the
914
+ // plotOffset
915
+
916
+ var lw = axis.labelWidth,
917
+ lh = axis.labelHeight,
918
+ pos = axis.options.position,
919
+ tickLength = axis.options.tickLength,
920
+ axismargin = options.grid.axisMargin,
921
+ padding = options.grid.labelMargin,
922
+ all = axis.direction == "x" ? xaxes : yaxes,
923
+ index;
924
+
925
+ // determine axis margin
926
+ var samePosition = $.grep(all, function (a) {
927
+ return a && a.options.position == pos && a.reserveSpace;
928
+ });
929
+ if ($.inArray(axis, samePosition) == samePosition.length - 1)
930
+ axismargin = 0; // outermost
931
+
932
+ // determine tick length - if we're innermost, we can use "full"
933
+ if (tickLength == null)
934
+ tickLength = "full";
935
+
936
+ var sameDirection = $.grep(all, function (a) {
937
+ return a && a.reserveSpace;
938
+ });
939
+
940
+ var innermost = $.inArray(axis, sameDirection) == 0;
941
+ if (!innermost && tickLength == "full")
942
+ tickLength = 5;
943
+
944
+ if (!isNaN(+tickLength))
945
+ padding += +tickLength;
946
+
947
+ // compute box
948
+ if (axis.direction == "x") {
949
+ lh += padding;
950
+
951
+ if (pos == "bottom") {
952
+ plotOffset.bottom += lh + axismargin;
953
+ axis.box = { top: canvasHeight - plotOffset.bottom, height: lh };
954
+ }
955
+ else {
956
+ axis.box = { top: plotOffset.top + axismargin, height: lh };
957
+ plotOffset.top += lh + axismargin;
958
+ }
959
+ }
960
+ else {
961
+ lw += padding;
962
+
963
+ if (pos == "left") {
964
+ axis.box = { left: plotOffset.left + axismargin, width: lw };
965
+ plotOffset.left += lw + axismargin;
966
+ }
967
+ else {
968
+ plotOffset.right += lw + axismargin;
969
+ axis.box = { left: canvasWidth - plotOffset.right, width: lw };
970
+ }
971
+ }
972
+
973
+ // save for future reference
974
+ axis.position = pos;
975
+ axis.tickLength = tickLength;
976
+ axis.box.padding = padding;
977
+ axis.innermost = innermost;
978
+ }
979
+
980
+ function allocateAxisBoxSecondPhase(axis) {
981
+ // set remaining bounding box coordinates
982
+ if (axis.direction == "x") {
983
+ axis.box.left = plotOffset.left;
984
+ axis.box.width = plotWidth;
985
+ }
986
+ else {
987
+ axis.box.top = plotOffset.top;
988
+ axis.box.height = plotHeight;
989
+ }
990
+ }
991
+
992
+ function setupGrid() {
993
+ var i, axes = allAxes();
994
+
995
+ // first calculate the plot and axis box dimensions
996
+
997
+ $.each(axes, function (_, axis) {
998
+ axis.show = axis.options.show;
999
+ if (axis.show == null)
1000
+ axis.show = axis.used; // by default an axis is visible if it's got data
1001
+
1002
+ axis.reserveSpace = axis.show || axis.options.reserveSpace;
1003
+
1004
+ setRange(axis);
1005
+ });
1006
+
1007
+ allocatedAxes = $.grep(axes, function (axis) { return axis.reserveSpace; });
1008
+
1009
+ plotOffset.left = plotOffset.right = plotOffset.top = plotOffset.bottom = 0;
1010
+ if (options.grid.show) {
1011
+ $.each(allocatedAxes, function (_, axis) {
1012
+ // make the ticks
1013
+ setupTickGeneration(axis);
1014
+ setTicks(axis);
1015
+ snapRangeToTicks(axis, axis.ticks);
1016
+
1017
+ // find labelWidth/Height for axis
1018
+ measureTickLabels(axis);
1019
+ });
1020
+
1021
+ // with all dimensions in house, we can compute the
1022
+ // axis boxes, start from the outside (reverse order)
1023
+ for (i = allocatedAxes.length - 1; i >= 0; --i)
1024
+ allocateAxisBoxFirstPhase(allocatedAxes[i]);
1025
+
1026
+ // make sure we've got enough space for things that
1027
+ // might stick out
1028
+ var minMargin = options.grid.minBorderMargin;
1029
+ if (minMargin == null) {
1030
+ minMargin = 0;
1031
+ for (i = 0; i < series.length; ++i)
1032
+ minMargin = Math.max(minMargin, series[i].points.radius + series[i].points.lineWidth/2);
1033
+ }
1034
+
1035
+ for (var a in plotOffset) {
1036
+ plotOffset[a] += options.grid.borderWidth;
1037
+ plotOffset[a] = Math.max(minMargin, plotOffset[a]);
1038
+ }
1039
+ }
1040
+
1041
+ plotWidth = canvasWidth - plotOffset.left - plotOffset.right;
1042
+ plotHeight = canvasHeight - plotOffset.bottom - plotOffset.top;
1043
+
1044
+ // now we got the proper plotWidth/Height, we can compute the scaling
1045
+ $.each(axes, function (_, axis) {
1046
+ setTransformationHelpers(axis);
1047
+ });
1048
+
1049
+ if (options.grid.show) {
1050
+ $.each(allocatedAxes, function (_, axis) {
1051
+ allocateAxisBoxSecondPhase(axis);
1052
+ });
1053
+
1054
+ insertAxisLabels();
1055
+ }
1056
+
1057
+ insertLegend();
1058
+ }
1059
+
1060
+ function setRange(axis) {
1061
+ var opts = axis.options,
1062
+ min = +(opts.min != null ? opts.min : axis.datamin),
1063
+ max = +(opts.max != null ? opts.max : axis.datamax),
1064
+ delta = max - min;
1065
+
1066
+ if (delta == 0.0) {
1067
+ // degenerate case
1068
+ var widen = max == 0 ? 1 : 0.01;
1069
+
1070
+ if (opts.min == null)
1071
+ min -= widen;
1072
+ // always widen max if we couldn't widen min to ensure we
1073
+ // don't fall into min == max which doesn't work
1074
+ if (opts.max == null || opts.min != null)
1075
+ max += widen;
1076
+ }
1077
+ else {
1078
+ // consider autoscaling
1079
+ var margin = opts.autoscaleMargin;
1080
+ if (margin != null) {
1081
+ if (opts.min == null) {
1082
+ min -= delta * margin;
1083
+ // make sure we don't go below zero if all values
1084
+ // are positive
1085
+ if (min < 0 && axis.datamin != null && axis.datamin >= 0)
1086
+ min = 0;
1087
+ }
1088
+ if (opts.max == null) {
1089
+ max += delta * margin;
1090
+ if (max > 0 && axis.datamax != null && axis.datamax <= 0)
1091
+ max = 0;
1092
+ }
1093
+ }
1094
+ }
1095
+ axis.min = min;
1096
+ axis.max = max;
1097
+ }
1098
+
1099
+ function setupTickGeneration(axis) {
1100
+ var opts = axis.options;
1101
+
1102
+ // estimate number of ticks
1103
+ var noTicks;
1104
+ if (typeof opts.ticks == "number" && opts.ticks > 0)
1105
+ noTicks = opts.ticks;
1106
+ else
1107
+ // heuristic based on the model a*sqrt(x) fitted to
1108
+ // some data points that seemed reasonable
1109
+ noTicks = 0.3 * Math.sqrt(axis.direction == "x" ? canvasWidth : canvasHeight);
1110
+
1111
+ var delta = (axis.max - axis.min) / noTicks,
1112
+ size, generator, unit, formatter, i, magn, norm;
1113
+
1114
+ if (opts.mode == "time") {
1115
+ // pretty handling of time
1116
+
1117
+ // map of app. size of time units in milliseconds
1118
+ var timeUnitSize = {
1119
+ "second": 1000,
1120
+ "minute": 60 * 1000,
1121
+ "hour": 60 * 60 * 1000,
1122
+ "day": 24 * 60 * 60 * 1000,
1123
+ "month": 30 * 24 * 60 * 60 * 1000,
1124
+ "year": 365.2425 * 24 * 60 * 60 * 1000
1125
+ };
1126
+
1127
+
1128
+ // the allowed tick sizes, after 1 year we use
1129
+ // an integer algorithm
1130
+ var spec = [
1131
+ [1, "second"], [2, "second"], [5, "second"], [10, "second"],
1132
+ [30, "second"],
1133
+ [1, "minute"], [2, "minute"], [5, "minute"], [10, "minute"],
1134
+ [30, "minute"],
1135
+ [1, "hour"], [2, "hour"], [4, "hour"],
1136
+ [8, "hour"], [12, "hour"],
1137
+ [1, "day"], [2, "day"], [3, "day"],
1138
+ [0.25, "month"], [0.5, "month"], [1, "month"],
1139
+ [2, "month"], [3, "month"], [6, "month"],
1140
+ [1, "year"]
1141
+ ];
1142
+
1143
+ var minSize = 0;
1144
+ if (opts.minTickSize != null) {
1145
+ if (typeof opts.tickSize == "number")
1146
+ minSize = opts.tickSize;
1147
+ else
1148
+ minSize = opts.minTickSize[0] * timeUnitSize[opts.minTickSize[1]];
1149
+ }
1150
+
1151
+ for (var i = 0; i < spec.length - 1; ++i)
1152
+ if (delta < (spec[i][0] * timeUnitSize[spec[i][1]]
1153
+ + spec[i + 1][0] * timeUnitSize[spec[i + 1][1]]) / 2
1154
+ && spec[i][0] * timeUnitSize[spec[i][1]] >= minSize)
1155
+ break;
1156
+ size = spec[i][0];
1157
+ unit = spec[i][1];
1158
+
1159
+ // special-case the possibility of several years
1160
+ if (unit == "year") {
1161
+ magn = Math.pow(10, Math.floor(Math.log(delta / timeUnitSize.year) / Math.LN10));
1162
+ norm = (delta / timeUnitSize.year) / magn;
1163
+ if (norm < 1.5)
1164
+ size = 1;
1165
+ else if (norm < 3)
1166
+ size = 2;
1167
+ else if (norm < 7.5)
1168
+ size = 5;
1169
+ else
1170
+ size = 10;
1171
+
1172
+ size *= magn;
1173
+ }
1174
+
1175
+ axis.tickSize = opts.tickSize || [size, unit];
1176
+
1177
+ generator = function(axis) {
1178
+ var ticks = [],
1179
+ tickSize = axis.tickSize[0], unit = axis.tickSize[1],
1180
+ d = new Date(axis.min);
1181
+
1182
+ var step = tickSize * timeUnitSize[unit];
1183
+
1184
+ if (unit == "second")
1185
+ d.setUTCSeconds(floorInBase(d.getUTCSeconds(), tickSize));
1186
+ if (unit == "minute")
1187
+ d.setUTCMinutes(floorInBase(d.getUTCMinutes(), tickSize));
1188
+ if (unit == "hour")
1189
+ d.setUTCHours(floorInBase(d.getUTCHours(), tickSize));
1190
+ if (unit == "month")
1191
+ d.setUTCMonth(floorInBase(d.getUTCMonth(), tickSize));
1192
+ if (unit == "year")
1193
+ d.setUTCFullYear(floorInBase(d.getUTCFullYear(), tickSize));
1194
+
1195
+ // reset smaller components
1196
+ d.setUTCMilliseconds(0);
1197
+ if (step >= timeUnitSize.minute)
1198
+ d.setUTCSeconds(0);
1199
+ if (step >= timeUnitSize.hour)
1200
+ d.setUTCMinutes(0);
1201
+ if (step >= timeUnitSize.day)
1202
+ d.setUTCHours(0);
1203
+ if (step >= timeUnitSize.day * 4)
1204
+ d.setUTCDate(1);
1205
+ if (step >= timeUnitSize.year)
1206
+ d.setUTCMonth(0);
1207
+
1208
+
1209
+ var carry = 0, v = Number.NaN, prev;
1210
+ do {
1211
+ prev = v;
1212
+ v = d.getTime();
1213
+ ticks.push(v);
1214
+ if (unit == "month") {
1215
+ if (tickSize < 1) {
1216
+ // a bit complicated - we'll divide the month
1217
+ // up but we need to take care of fractions
1218
+ // so we don't end up in the middle of a day
1219
+ d.setUTCDate(1);
1220
+ var start = d.getTime();
1221
+ d.setUTCMonth(d.getUTCMonth() + 1);
1222
+ var end = d.getTime();
1223
+ d.setTime(v + carry * timeUnitSize.hour + (end - start) * tickSize);
1224
+ carry = d.getUTCHours();
1225
+ d.setUTCHours(0);
1226
+ }
1227
+ else
1228
+ d.setUTCMonth(d.getUTCMonth() + tickSize);
1229
+ }
1230
+ else if (unit == "year") {
1231
+ d.setUTCFullYear(d.getUTCFullYear() + tickSize);
1232
+ }
1233
+ else
1234
+ d.setTime(v + step);
1235
+ } while (v < axis.max && v != prev);
1236
+
1237
+ return ticks;
1238
+ };
1239
+
1240
+ formatter = function (v, axis) {
1241
+ var d = new Date(v);
1242
+
1243
+ // first check global format
1244
+ if (opts.timeformat != null)
1245
+ return $.plot.formatDate(d, opts.timeformat, opts.monthNames);
1246
+
1247
+ var t = axis.tickSize[0] * timeUnitSize[axis.tickSize[1]];
1248
+ var span = axis.max - axis.min;
1249
+ var suffix = (opts.twelveHourClock) ? " %p" : "";
1250
+
1251
+ if (t < timeUnitSize.minute)
1252
+ fmt = "%h:%M:%S" + suffix;
1253
+ else if (t < timeUnitSize.day) {
1254
+ if (span < 2 * timeUnitSize.day)
1255
+ fmt = "%h:%M" + suffix;
1256
+ else
1257
+ fmt = "%b %d %h:%M" + suffix;
1258
+ }
1259
+ else if (t < timeUnitSize.month)
1260
+ fmt = "%b %d";
1261
+ else if (t < timeUnitSize.year) {
1262
+ if (span < timeUnitSize.year)
1263
+ fmt = "%b";
1264
+ else
1265
+ fmt = "%b %y";
1266
+ }
1267
+ else
1268
+ fmt = "%y";
1269
+
1270
+ return $.plot.formatDate(d, fmt, opts.monthNames);
1271
+ };
1272
+ }
1273
+ else {
1274
+ // pretty rounding of base-10 numbers
1275
+ var maxDec = opts.tickDecimals;
1276
+ var dec = -Math.floor(Math.log(delta) / Math.LN10);
1277
+ if (maxDec != null && dec > maxDec)
1278
+ dec = maxDec;
1279
+
1280
+ magn = Math.pow(10, -dec);
1281
+ norm = delta / magn; // norm is between 1.0 and 10.0
1282
+
1283
+ if (norm < 1.5)
1284
+ size = 1;
1285
+ else if (norm < 3) {
1286
+ size = 2;
1287
+ // special case for 2.5, requires an extra decimal
1288
+ if (norm > 2.25 && (maxDec == null || dec + 1 <= maxDec)) {
1289
+ size = 2.5;
1290
+ ++dec;
1291
+ }
1292
+ }
1293
+ else if (norm < 7.5)
1294
+ size = 5;
1295
+ else
1296
+ size = 10;
1297
+
1298
+ size *= magn;
1299
+
1300
+ if (opts.minTickSize != null && size < opts.minTickSize)
1301
+ size = opts.minTickSize;
1302
+
1303
+ axis.tickDecimals = Math.max(0, maxDec != null ? maxDec : dec);
1304
+ axis.tickSize = opts.tickSize || size;
1305
+
1306
+ generator = function (axis) {
1307
+ var ticks = [];
1308
+
1309
+ // spew out all possible ticks
1310
+ var start = floorInBase(axis.min, axis.tickSize),
1311
+ i = 0, v = Number.NaN, prev;
1312
+ do {
1313
+ prev = v;
1314
+ v = start + i * axis.tickSize;
1315
+ ticks.push(v);
1316
+ ++i;
1317
+ } while (v < axis.max && v != prev);
1318
+ return ticks;
1319
+ };
1320
+
1321
+ formatter = function (v, axis) {
1322
+ return v.toFixed(axis.tickDecimals);
1323
+ };
1324
+ }
1325
+
1326
+ if (opts.alignTicksWithAxis != null) {
1327
+ var otherAxis = (axis.direction == "x" ? xaxes : yaxes)[opts.alignTicksWithAxis - 1];
1328
+ if (otherAxis && otherAxis.used && otherAxis != axis) {
1329
+ // consider snapping min/max to outermost nice ticks
1330
+ var niceTicks = generator(axis);
1331
+ if (niceTicks.length > 0) {
1332
+ if (opts.min == null)
1333
+ axis.min = Math.min(axis.min, niceTicks[0]);
1334
+ if (opts.max == null && niceTicks.length > 1)
1335
+ axis.max = Math.max(axis.max, niceTicks[niceTicks.length - 1]);
1336
+ }
1337
+
1338
+ generator = function (axis) {
1339
+ // copy ticks, scaled to this axis
1340
+ var ticks = [], v, i;
1341
+ for (i = 0; i < otherAxis.ticks.length; ++i) {
1342
+ v = (otherAxis.ticks[i].v - otherAxis.min) / (otherAxis.max - otherAxis.min);
1343
+ v = axis.min + v * (axis.max - axis.min);
1344
+ ticks.push(v);
1345
+ }
1346
+ return ticks;
1347
+ };
1348
+
1349
+ // we might need an extra decimal since forced
1350
+ // ticks don't necessarily fit naturally
1351
+ if (axis.mode != "time" && opts.tickDecimals == null) {
1352
+ var extraDec = Math.max(0, -Math.floor(Math.log(delta) / Math.LN10) + 1),
1353
+ ts = generator(axis);
1354
+
1355
+ // only proceed if the tick interval rounded
1356
+ // with an extra decimal doesn't give us a
1357
+ // zero at end
1358
+ if (!(ts.length > 1 && /\..*0#x2F;.test((ts[1] - ts[0]).toFixed(extraDec))))
1359
+ axis.tickDecimals = extraDec;
1360
+ }
1361
+ }
1362
+ }
1363
+
1364
+ axis.tickGenerator = generator;
1365
+ if ($.isFunction(opts.tickFormatter))
1366
+ axis.tickFormatter = function (v, axis) { return "" + opts.tickFormatter(v, axis); };
1367
+ else
1368
+ axis.tickFormatter = formatter;
1369
+ }
1370
+
1371
+ function setTicks(axis) {
1372
+ var oticks = axis.options.ticks, ticks = [];
1373
+ if (oticks == null || (typeof oticks == "number" && oticks > 0))
1374
+ ticks = axis.tickGenerator(axis);
1375
+ else if (oticks) {
1376
+ if ($.isFunction(oticks))
1377
+ // generate the ticks
1378
+ ticks = oticks({ min: axis.min, max: axis.max });
1379
+ else
1380
+ ticks = oticks;
1381
+ }
1382
+
1383
+ // clean up/labelify the supplied ticks, copy them over
1384
+ var i, v;
1385
+ axis.ticks = [];
1386
+ for (i = 0; i < ticks.length; ++i) {
1387
+ var label = null;
1388
+ var t = ticks[i];
1389
+ if (typeof t == "object") {
1390
+ v = +t[0];
1391
+ if (t.length > 1)
1392
+ label = t[1];
1393
+ }
1394
+ else
1395
+ v = +t;
1396
+ if (label == null)
1397
+ label = axis.tickFormatter(v, axis);
1398
+ if (!isNaN(v))
1399
+ axis.ticks.push({ v: v, label: label });
1400
+ }
1401
+ }
1402
+
1403
+ function snapRangeToTicks(axis, ticks) {
1404
+ if (axis.options.autoscaleMargin && ticks.length > 0) {
1405
+ // snap to ticks
1406
+ if (axis.options.min == null)
1407
+ axis.min = Math.min(axis.min, ticks[0].v);
1408
+ if (axis.options.max == null && ticks.length > 1)
1409
+ axis.max = Math.max(axis.max, ticks[ticks.length - 1].v);
1410
+ }
1411
+ }
1412
+
1413
+ function draw() {
1414
+ ctx.clearRect(0, 0, canvasWidth, canvasHeight);
1415
+
1416
+ var grid = options.grid;
1417
+
1418
+ // draw background, if any
1419
+ if (grid.show && grid.backgroundColor)
1420
+ drawBackground();
1421
+
1422
+ if (grid.show && !grid.aboveData)
1423
+ drawGrid();
1424
+
1425
+ for (var i = 0; i < series.length; ++i) {
1426
+ executeHooks(hooks.drawSeries, [ctx, series[i]]);
1427
+ drawSeries(series[i]);
1428
+ }
1429
+
1430
+ executeHooks(hooks.draw, [ctx]);
1431
+
1432
+ if (grid.show && grid.aboveData)
1433
+ drawGrid();
1434
+ }
1435
+
1436
+ function extractRange(ranges, coord) {
1437
+ var axis, from, to, key, axes = allAxes();
1438
+
1439
+ for (i = 0; i < axes.length; ++i) {
1440
+ axis = axes[i];
1441
+ if (axis.direction == coord) {
1442
+ key = coord + axis.n + "axis";
1443
+ if (!ranges[key] && axis.n == 1)
1444
+ key = coord + "axis"; // support x1axis as xaxis
1445
+ if (ranges[key]) {
1446
+ from = ranges[key].from;
1447
+ to = ranges[key].to;
1448
+ break;
1449
+ }
1450
+ }
1451
+ }
1452
+
1453
+ // backwards-compat stuff - to be removed in future
1454
+ if (!ranges[key]) {
1455
+ axis = coord == "x" ? xaxes[0] : yaxes[0];
1456
+ from = ranges[coord + "1"];
1457
+ to = ranges[coord + "2"];
1458
+ }
1459
+
1460
+ // auto-reverse as an added bonus
1461
+ if (from != null && to != null && from > to) {
1462
+ var tmp = from;
1463
+ from = to;
1464
+ to = tmp;
1465
+ }
1466
+
1467
+ return { from: from, to: to, axis: axis };
1468
+ }
1469
+
1470
+ function drawBackground() {
1471
+ ctx.save();
1472
+ ctx.translate(plotOffset.left, plotOffset.top);
1473
+
1474
+ ctx.fillStyle = getColorOrGradient(options.grid.backgroundColor, plotHeight, 0, "rgba(255, 255, 255, 0)");
1475
+ ctx.fillRect(0, 0, plotWidth, plotHeight);
1476
+ ctx.restore();
1477
+ }
1478
+
1479
+ function drawGrid() {
1480
+ var i;
1481
+
1482
+ ctx.save();
1483
+ ctx.translate(plotOffset.left, plotOffset.top);
1484
+
1485
+ // draw markings
1486
+ var markings = options.grid.markings;
1487
+ if (markings) {
1488
+ if ($.isFunction(markings)) {
1489
+ var axes = plot.getAxes();
1490
+ // xmin etc. is backwards compatibility, to be
1491
+ // removed in the future
1492
+ axes.xmin = axes.xaxis.min;
1493
+ axes.xmax = axes.xaxis.max;
1494
+ axes.ymin = axes.yaxis.min;
1495
+ axes.ymax = axes.yaxis.max;
1496
+
1497
+ markings = markings(axes);
1498
+ }
1499
+
1500
+ for (i = 0; i < markings.length; ++i) {
1501
+ var m = markings[i],
1502
+ xrange = extractRange(m, "x"),
1503
+ yrange = extractRange(m, "y");
1504
+
1505
+ // fill in missing
1506
+ if (xrange.from == null)
1507
+ xrange.from = xrange.axis.min;
1508
+ if (xrange.to == null)
1509
+ xrange.to = xrange.axis.max;
1510
+ if (yrange.from == null)
1511
+ yrange.from = yrange.axis.min;
1512
+ if (yrange.to == null)
1513
+ yrange.to = yrange.axis.max;
1514
+
1515
+ // clip
1516
+ if (xrange.to < xrange.axis.min || xrange.from > xrange.axis.max ||
1517
+ yrange.to < yrange.axis.min || yrange.from > yrange.axis.max)
1518
+ continue;
1519
+
1520
+ xrange.from = Math.max(xrange.from, xrange.axis.min);
1521
+ xrange.to = Math.min(xrange.to, xrange.axis.max);
1522
+ yrange.from = Math.max(yrange.from, yrange.axis.min);
1523
+ yrange.to = Math.min(yrange.to, yrange.axis.max);
1524
+
1525
+ if (xrange.from == xrange.to && yrange.from == yrange.to)
1526
+ continue;
1527
+
1528
+ // then draw
1529
+ xrange.from = xrange.axis.p2c(xrange.from);
1530
+ xrange.to = xrange.axis.p2c(xrange.to);
1531
+ yrange.from = yrange.axis.p2c(yrange.from);
1532
+ yrange.to = yrange.axis.p2c(yrange.to);
1533
+
1534
+ if (xrange.from == xrange.to || yrange.from == yrange.to) {
1535
+ // draw line
1536
+ ctx.beginPath();
1537
+ ctx.strokeStyle = m.color || options.grid.markingsColor;
1538
+ ctx.lineWidth = m.lineWidth || options.grid.markingsLineWidth;
1539
+ ctx.moveTo(xrange.from, yrange.from);
1540
+ ctx.lineTo(xrange.to, yrange.to);
1541
+ ctx.stroke();
1542
+ }
1543
+ else {
1544
+ // fill area
1545
+ ctx.fillStyle = m.color || options.grid.markingsColor;
1546
+ ctx.fillRect(xrange.from, yrange.to,
1547
+ xrange.to - xrange.from,
1548
+ yrange.from - yrange.to);
1549
+ }
1550
+ }
1551
+ }
1552
+
1553
+ // draw the ticks
1554
+ var axes = allAxes(), bw = options.grid.borderWidth;
1555
+
1556
+ for (var j = 0; j < axes.length; ++j) {
1557
+ var axis = axes[j], box = axis.box,
1558
+ t = axis.tickLength, x, y, xoff, yoff;
1559
+ if (!axis.show || axis.ticks.length == 0)
1560
+ continue
1561
+
1562
+ ctx.strokeStyle = axis.options.tickColor || $.color.parse(axis.options.color).scale('a', 0.22).toString();
1563
+ ctx.lineWidth = 1;
1564
+
1565
+ // find the edges
1566
+ if (axis.direction == "x") {
1567
+ x = 0;
1568
+ if (t == "full")
1569
+ y = (axis.position == "top" ? 0 : plotHeight);
1570
+ else
1571
+ y = box.top - plotOffset.top + (axis.position == "top" ? box.height : 0);
1572
+ }
1573
+ else {
1574
+