1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 | /** * Flotr Date */ Flotr.Date = { set : function (date, name, mode, value) { mode = mode || 'UTC'; name = 'set' + (mode === 'UTC' ? 'UTC' : '') + name; date[name](value); }, get : function (date, name, mode) { mode = mode || 'UTC'; name = 'get' + (mode === 'UTC' ? 'UTC' : '') + name; return date[name](); }, format: function(d, format, mode) { if (!d) return; // We should maybe use an "official" date format spec, like PHP date() or ColdFusion // http://fr.php.net/manual/en/function.date.php // http://livedocs.adobe.com/coldfusion/8/htmldocs/help.html?content=functions_c-d_29.html var get = this.get, tokens = { h: get(d, 'Hours', mode).toString(), H: leftPad(get(d, 'Hours', mode)), M: leftPad(get(d, 'Minutes', mode)), S: leftPad(get(d, 'Seconds', mode)), s: get(d, 'Milliseconds', mode), d: get(d, 'Date', mode).toString(), m: (get(d, 'Month', mode) + 1).toString(), y: get(d, 'FullYear', mode).toString(), b: Flotr.Date.monthNames[get(d, 'Month', mode)] }; function leftPad(n){ n += ''; return n.length == 1 ? "0" + n : n; } var r = [], c, escape = false; for (var i = 0; i < format.length; ++i) { c = format.charAt(i); if (escape) { r.push(tokens[c] || c); escape = false; } else if (c == "%") escape = true; else r.push(c); } return r.join(''); }, getFormat: function(time, span) { var tu = Flotr.Date.timeUnits; if (time < tu.second) return "%h:%M:%S.%s"; else if (time < tu.minute) return "%h:%M:%S"; else if (time < tu.day) return (span < 2 * tu.day) ? "%h:%M" : "%b %d %h:%M"; else if (time < tu.month) return "%b %d"; else if (time < tu.year) return (span < tu.year) ? "%b" : "%b %y"; else return "%y"; }, formatter: function (v, axis) { var options = axis.options, scale = Flotr.Date.timeUnits[options.timeUnit], d = new Date(v * scale); // first check global format if (axis.options.timeFormat) return Flotr.Date.format(d, options.timeFormat, options.timeMode); var span = (axis.max - axis.min) * scale, t = axis.tickSize * Flotr.Date.timeUnits[axis.tickUnit]; return Flotr.Date.format(d, Flotr.Date.getFormat(t, span), options.timeMode); }, generator: function(axis) { var set = this.set, get = this.get, timeUnits = this.timeUnits, spec = this.spec, options = axis.options, mode = options.timeMode, scale = timeUnits[options.timeUnit], min = axis.min * scale, max = axis.max * scale, delta = (max - min) / options.noTicks, ticks = [], tickSize = axis.tickSize, tickUnit, formatter, i; // Use custom formatter or time tick formatter formatter = (options.tickFormatter === Flotr.defaultTickFormatter ? this.formatter : options.tickFormatter ); for (i = 0; i < spec.length - 1; ++i) { var d = spec[i][0] * timeUnits[spec[i][1]]; if (delta < (d + spec[i+1][0] * timeUnits[spec[i+1][1]]) / 2 && d >= tickSize) break; } tickSize = spec[i][0]; tickUnit = spec[i][1]; // special-case the possibility of several years if (tickUnit == "year") { tickSize = Flotr.getTickSize(options.noTicks*timeUnits.year, min, max, 0); // Fix for 0.5 year case if (tickSize == 0.5) { tickUnit = "month"; tickSize = 6; } } axis.tickUnit = tickUnit; axis.tickSize = tickSize; var step = tickSize * timeUnits[tickUnit]; d = new Date(min); function setTick (name) { set(d, name, mode, Flotr.floorInBase( get(d, name, mode), tickSize )); } switch (tickUnit) { case "millisecond": setTick('Milliseconds'); break; case "second": setTick('Seconds'); break; case "minute": setTick('Minutes'); break; case "hour": setTick('Hours'); break; case "month": setTick('Month'); break; case "year": setTick('FullYear'); break; } // reset smaller components if (step >= timeUnits.second) set(d, 'Milliseconds', mode, 0); if (step >= timeUnits.minute) set(d, 'Seconds', mode, 0); if (step >= timeUnits.hour) set(d, 'Minutes', mode, 0); if (step >= timeUnits.day) set(d, 'Hours', mode, 0); if (step >= timeUnits.day * 4) set(d, 'Date', mode, 1); if (step >= timeUnits.year) set(d, 'Month', mode, 0); var carry = 0, v = NaN, prev; do { prev = v; v = d.getTime(); ticks.push({ v: v / scale, label: formatter(v / scale, axis) }); if (tickUnit == "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 */ set(d, 'Date', mode, 1); var start = d.getTime(); set(d, 'Month', mode, get(d, 'Month', mode) + 1); var end = d.getTime(); d.setTime(v + carry * timeUnits.hour + (end - start) * tickSize); carry = get(d, 'Hours', mode); set(d, 'Hours', mode, 0); } else set(d, 'Month', mode, get(d, 'Month', mode) + tickSize); } else if (tickUnit == "year") { set(d, 'FullYear', mode, get(d, 'FullYear', mode) + tickSize); } else d.setTime(v + step); } while (v < max && v != prev); return ticks; }, timeUnits: { millisecond: 1, second: 1000, minute: 1000 * 60, hour: 1000 * 60 * 60, day: 1000 * 60 * 60 * 24, month: 1000 * 60 * 60 * 24 * 30, year: 1000 * 60 * 60 * 24 * 365.2425 }, // the allowed tick sizes, after 1 year we use an integer algorithm spec: [ [1, "millisecond"], [20, "millisecond"], [50, "millisecond"], [100, "millisecond"], [200, "millisecond"], [500, "millisecond"], [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"] ], monthNames: ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"] }; |