[ceph.git] / ceph / src / pybind / mgr / dashboard / static / AdminLTE-2.3.7 / plugins / flot / jquery.flot.time.js

/* Pretty handling of time axes.

Copyright (c) 2007-2013 IOLA and Ole Laursen.
Licensed under the MIT license.

Set axis.mode to "time" to enable. See the section "Time series data" in
API.txt for details.

*/

(function($) {

	var options = {
		xaxis: {
			timezone: null,		// "browser" for local to the client or timezone for timezone-js
			timeformat: null,	// format string to use
			twelveHourClock: false,	// 12 or 24 time in time mode
			monthNames: null	// list of names of months
		}
	};

	// round to nearby lower multiple of base

	function floorInBase(n, base) {
		return base * Math.floor(n / base);
	}

	// Returns a string with the date d formatted according to fmt.
	// A subset of the Open Group's strftime format is supported.

	function formatDate(d, fmt, monthNames, dayNames) {

		if (typeof d.strftime == "function") {
			return d.strftime(fmt);
		}

		var leftPad = function(n, pad) {
			n = "" + n;
			pad = "" + (pad == null ? "0" : pad);
			return n.length == 1 ? pad + n : n;
		};

		var r = [];
		var escape = false;
		var hours = d.getHours();
		var isAM = hours < 12;

		if (monthNames == null) {
			monthNames = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"];
		}

		if (dayNames == null) {
			dayNames = ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"];
		}

		var hours12;

		if (hours > 12) {
			hours12 = hours - 12;
		} else if (hours == 0) {
			hours12 = 12;
		} else {
			hours12 = hours;
		}

		for (var i = 0; i < fmt.length; ++i) {

			var c = fmt.charAt(i);

			if (escape) {
				switch (c) {
					case 'a': c = "" + dayNames[d.getDay()]; break;
					case 'b': c = "" + monthNames[d.getMonth()]; break;
					case 'd': c = leftPad(d.getDate()); break;
					case 'e': c = leftPad(d.getDate(), " "); break;
					case 'h':	// For back-compat with 0.7; remove in 1.0
					case 'H': c = leftPad(hours); break;
					case 'I': c = leftPad(hours12); break;
					case 'l': c = leftPad(hours12, " "); break;
					case 'm': c = leftPad(d.getMonth() + 1); break;
					case 'M': c = leftPad(d.getMinutes()); break;
					// quarters not in Open Group's strftime specification
					case 'q':
						c = "" + (Math.floor(d.getMonth() / 3) + 1); break;
					case 'S': c = leftPad(d.getSeconds()); break;
					case 'y': c = leftPad(d.getFullYear() % 100); break;
					case 'Y': c = "" + d.getFullYear(); break;
					case 'p': c = (isAM) ? ("" + "am") : ("" + "pm"); break;
					case 'P': c = (isAM) ? ("" + "AM") : ("" + "PM"); break;
					case 'w': c = "" + d.getDay(); break;
				}
				r.push(c);
				escape = false;
			} else {
				if (c == "%") {
					escape = true;
				} else {
					r.push(c);
				}
			}
		}

		return r.join("");
	}

	// To have a consistent view of time-based data independent of which time
	// zone the client happens to be in we need a date-like object independent
	// of time zones.  This is done through a wrapper that only calls the UTC
	// versions of the accessor methods.

	function makeUtcWrapper(d) {

		function addProxyMethod(sourceObj, sourceMethod, targetObj, targetMethod) {
			sourceObj[sourceMethod] = function() {
				return targetObj[targetMethod].apply(targetObj, arguments);
			};
        }
        var utc = {
			date: d
		};

		// support strftime, if found

		if (d.strftime != undefined) {
			addProxyMethod(utc, "strftime", d, "strftime");
		}

		addProxyMethod(utc, "getTime", d, "getTime");
		addProxyMethod(utc, "setTime", d, "setTime");

		var props = ["Date", "Day", "FullYear", "Hours", "Milliseconds", "Minutes", "Month", "Seconds"];

		for (var p = 0; p < props.length; p++) {
			addProxyMethod(utc, "get" + props[p], d, "getUTC" + props[p]);
			addProxyMethod(utc, "set" + props[p], d, "setUTC" + props[p]);
		}

		return utc;
    }
    // select time zone strategy.  This returns a date-like object tied to the
	// desired timezone

	function dateGenerator(ts, opts) {
		if (opts.timezone == "browser") {
			return new Date(ts);
		} else if (!opts.timezone || opts.timezone == "utc") {
			return makeUtcWrapper(new Date(ts));
		} else if (typeof timezoneJS != "undefined" && typeof timezoneJS.Date != "undefined") {
			var d = new timezoneJS.Date();
			// timezone-js is fickle, so be sure to set the time zone before
			// setting the time.
			d.setTimezone(opts.timezone);
			d.setTime(ts);
			return d;
		} else {
			return makeUtcWrapper(new Date(ts));
		}
	}
	
	// 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,
		"quarter": 3 * 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 baseSpec = [
		[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"]
	];

	// we don't know which variant(s) we'll need yet, but generating both is
	// cheap

	var specMonths = baseSpec.concat([[3, "month"], [6, "month"],
		[1, "year"]]);
	var specQuarters = baseSpec.concat([[1, "quarter"], [2, "quarter"],
		[1, "year"]]);

	function init(plot) {
		plot.hooks.processOptions.push(function (plot, options) {
			$.each(plot.getAxes(), function(axisName, axis) {

				var opts = axis.options;

				if (opts.mode == "time") {
					axis.tickGenerator = function(axis) {

						var ticks = [];
						var d = dateGenerator(axis.min, opts);
						var minSize = 0;

						// make quarter use a possibility if quarters are
						// mentioned in either of these options

						var spec = (opts.tickSize && opts.tickSize[1] ===
							"quarter") ||
							(opts.minTickSize && opts.minTickSize[1] ===
							"quarter") ? specQuarters : specMonths;

						if (opts.minTickSize != null) {
							if (typeof opts.tickSize == "number") {
								minSize = opts.tickSize;
							} else {
								minSize = opts.minTickSize[0] * timeUnitSize[opts.minTickSize[1]];
							}
						}

						for (var i = 0; i < spec.length - 1; ++i) {
							if (axis.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;
							}
						}

						var size = spec[i][0];
						var unit = spec[i][1];

						// special-case the possibility of several years

						if (unit == "year") {

							// if given a minTickSize in years, just use it,
							// ensuring that it's an integer

							if (opts.minTickSize != null && opts.minTickSize[1] == "year") {
								size = Math.floor(opts.minTickSize[0]);
							} else {

								var magn = Math.pow(10, Math.floor(Math.log(axis.delta / timeUnitSize.year) / Math.LN10));
								var norm = (axis.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;
							}

							// minimum size for years is 1

							if (size < 1) {
								size = 1;
							}
						}

						axis.tickSize = opts.tickSize || [size, unit];
						var tickSize = axis.tickSize[0];
						unit = axis.tickSize[1];

						var step = tickSize * timeUnitSize[unit];

						if (unit == "second") {
							d.setSeconds(floorInBase(d.getSeconds(), tickSize));
						} else if (unit == "minute") {
							d.setMinutes(floorInBase(d.getMinutes(), tickSize));
						} else if (unit == "hour") {
							d.setHours(floorInBase(d.getHours(), tickSize));
						} else if (unit == "month") {
							d.setMonth(floorInBase(d.getMonth(), tickSize));
						} else if (unit == "quarter") {
							d.setMonth(3 * floorInBase(d.getMonth() / 3,
								tickSize));
						} else if (unit == "year") {
							d.setFullYear(floorInBase(d.getFullYear(), tickSize));
						}

						// reset smaller components

						d.setMilliseconds(0);

						if (step >= timeUnitSize.minute) {
							d.setSeconds(0);
						}
						if (step >= timeUnitSize.hour) {
							d.setMinutes(0);
						}
						if (step >= timeUnitSize.day) {
							d.setHours(0);
						}
						if (step >= timeUnitSize.day * 4) {
							d.setDate(1);
						}
						if (step >= timeUnitSize.month * 2) {
							d.setMonth(floorInBase(d.getMonth(), 3));
						}
						if (step >= timeUnitSize.quarter * 2) {
							d.setMonth(floorInBase(d.getMonth(), 6));
						}
						if (step >= timeUnitSize.year) {
							d.setMonth(0);
						}

						var carry = 0;
						var v = Number.NaN;
						var prev;

						do {

							prev = v;
							v = d.getTime();
							ticks.push(v);

							if (unit == "month" || unit == "quarter") {
								if (tickSize < 1) {

									// a bit complicated - we'll divide the
									// month/quarter up but we need to take
									// care of fractions so we don't end up in
									// the middle of a day

									d.setDate(1);
									var start = d.getTime();
									d.setMonth(d.getMonth() +
										(unit == "quarter" ? 3 : 1));
									var end = d.getTime();
									d.setTime(v + carry * timeUnitSize.hour + (end - start) * tickSize);
									carry = d.getHours();
									d.setHours(0);
								} else {
									d.setMonth(d.getMonth() +
										tickSize * (unit == "quarter" ? 3 : 1));
								}
							} else if (unit == "year") {
								d.setFullYear(d.getFullYear() + tickSize);
							} else {
								d.setTime(v + step);
							}
						} while (v < axis.max && v != prev);

						return ticks;
					};

					axis.tickFormatter = function (v, axis) {

						var d = dateGenerator(v, axis.options);

						// first check global format

						if (opts.timeformat != null) {
							return formatDate(d, opts.timeformat, opts.monthNames, opts.dayNames);
						}

						// possibly use quarters if quarters are mentioned in
						// any of these places

						var useQuarters = (axis.options.tickSize &&
								axis.options.tickSize[1] == "quarter") ||
							(axis.options.minTickSize &&
								axis.options.minTickSize[1] == "quarter");

						var t = axis.tickSize[0] * timeUnitSize[axis.tickSize[1]];
						var span = axis.max - axis.min;
						var suffix = (opts.twelveHourClock) ? " %p" : "";
						var hourCode = (opts.twelveHourClock) ? "%I" : "%H";
						var fmt;

						if (t < timeUnitSize.minute) {
							fmt = hourCode + ":%M:%S" + suffix;
						} else if (t < timeUnitSize.day) {
							if (span < 2 * timeUnitSize.day) {
								fmt = hourCode + ":%M" + suffix;
							} else {
								fmt = "%b %d " + hourCode + ":%M" + suffix;
							}
						} else if (t < timeUnitSize.month) {
							fmt = "%b %d";
						} else if ((useQuarters && t < timeUnitSize.quarter) ||
							(!useQuarters && t < timeUnitSize.year)) {
							if (span < timeUnitSize.year) {
								fmt = "%b";
							} else {
								fmt = "%b %Y";
							}
						} else if (useQuarters && t < timeUnitSize.year) {
							if (span < timeUnitSize.year) {
								fmt = "Q%q";
							} else {
								fmt = "Q%q %Y";
							}
						} else {
							fmt = "%Y";
						}

						var rt = formatDate(d, fmt, opts.monthNames, opts.dayNames);

						return rt;
					};
				}
			});
		});
	}

	$.plot.plugins.push({
		init: init,
		options: options,
		name: 'time',
		version: '1.0'
	});

	// Time-axis support used to be in Flot core, which exposed the
	// formatDate function on the plot object.  Various plugins depend
	// on the function, so we need to re-expose it here.

	$.plot.formatDate = formatDate;

})(jQuery);
Commit	Line	Data
31f18b77 FG	1	/* Pretty handling of time axes.
	2
	3	Copyright (c) 2007-2013 IOLA and Ole Laursen.
	4	Licensed under the MIT license.
	5
	6	Set axis.mode to "time" to enable. See the section "Time series data" in
	7	API.txt for details.
	8
	9	*/
	10
	11	(function($) {
	12
	13	var options = {
	14	xaxis: {
	15	timezone: null, // "browser" for local to the client or timezone for timezone-js
	16	timeformat: null, // format string to use
	17	twelveHourClock: false, // 12 or 24 time in time mode
	18	monthNames: null // list of names of months
	19	}
	20	};
	21
	22	// round to nearby lower multiple of base
	23
	24	function floorInBase(n, base) {
	25	return base * Math.floor(n / base);
	26	}
	27
	28	// Returns a string with the date d formatted according to fmt.
	29	// A subset of the Open Group's strftime format is supported.
	30
	31	function formatDate(d, fmt, monthNames, dayNames) {
	32
	33	if (typeof d.strftime == "function") {
	34	return d.strftime(fmt);
	35	}
	36
	37	var leftPad = function(n, pad) {
	38	n = "" + n;
	39	pad = "" + (pad == null ? "0" : pad);
	40	return n.length == 1 ? pad + n : n;
	41	};
	42
	43	var r = [];
	44	var escape = false;
	45	var hours = d.getHours();
	46	var isAM = hours < 12;
	47
	48	if (monthNames == null) {
	49	monthNames = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"];
	50	}
	51
	52	if (dayNames == null) {
	53	dayNames = ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"];
	54	}
	55
	56	var hours12;
	57
	58	if (hours > 12) {
	59	hours12 = hours - 12;
	60	} else if (hours == 0) {
	61	hours12 = 12;
	62	} else {
	63	hours12 = hours;
	64	}
65
66	for (var i = 0; i < fmt.length; ++i) {
67
68	var c = fmt.charAt(i);
69
70	if (escape) {
71	switch (c) {
72	case 'a': c = "" + dayNames[d.getDay()]; break;
73	case 'b': c = "" + monthNames[d.getMonth()]; break;
74	case 'd': c = leftPad(d.getDate()); break;
75	case 'e': c = leftPad(d.getDate(), " "); break;
76	case 'h': // For back-compat with 0.7; remove in 1.0
77	case 'H': c = leftPad(hours); break;
78	case 'I': c = leftPad(hours12); break;
79	case 'l': c = leftPad(hours12, " "); break;
80	case 'm': c = leftPad(d.getMonth() + 1); break;
81	case 'M': c = leftPad(d.getMinutes()); break;
82	// quarters not in Open Group's strftime specification
83	case 'q':
84	c = "" + (Math.floor(d.getMonth() / 3) + 1); break;
85	case 'S': c = leftPad(d.getSeconds()); break;
86	case 'y': c = leftPad(d.getFullYear() % 100); break;
87	case 'Y': c = "" + d.getFullYear(); break;
88	case 'p': c = (isAM) ? ("" + "am") : ("" + "pm"); break;
89	case 'P': c = (isAM) ? ("" + "AM") : ("" + "PM"); break;
90	case 'w': c = "" + d.getDay(); break;
91	}
92	r.push(c);
93	escape = false;
94	} else {
95	if (c == "%") {
96	escape = true;
97	} else {
98	r.push(c);
99	}
100	}
101	}
102
103	return r.join("");
104	}
105
106	// To have a consistent view of time-based data independent of which time
107	// zone the client happens to be in we need a date-like object independent
108	// of time zones. This is done through a wrapper that only calls the UTC
109	// versions of the accessor methods.
110
111	function makeUtcWrapper(d) {
112
113	function addProxyMethod(sourceObj, sourceMethod, targetObj, targetMethod) {
114	sourceObj[sourceMethod] = function() {
115	return targetObj[targetMethod].apply(targetObj, arguments);
116	};
117	}
118	var utc = {
119	date: d
120	};
121
122	// support strftime, if found
123
124	if (d.strftime != undefined) {
125	addProxyMethod(utc, "strftime", d, "strftime");
126	}
127
128	addProxyMethod(utc, "getTime", d, "getTime");
129	addProxyMethod(utc, "setTime", d, "setTime");
130
131	var props = ["Date", "Day", "FullYear", "Hours", "Milliseconds", "Minutes", "Month", "Seconds"];
132
133	for (var p = 0; p < props.length; p++) {
134	addProxyMethod(utc, "get" + props[p], d, "getUTC" + props[p]);
135	addProxyMethod(utc, "set" + props[p], d, "setUTC" + props[p]);
136	}
137
138	return utc;
139	}
140	// select time zone strategy. This returns a date-like object tied to the
141	// desired timezone
142
143	function dateGenerator(ts, opts) {
144	if (opts.timezone == "browser") {
145	return new Date(ts);
146	} else if (!opts.timezone \|\| opts.timezone == "utc") {
147	return makeUtcWrapper(new Date(ts));
148	} else if (typeof timezoneJS != "undefined" && typeof timezoneJS.Date != "undefined") {
149	var d = new timezoneJS.Date();
150	// timezone-js is fickle, so be sure to set the time zone before
151	// setting the time.
152	d.setTimezone(opts.timezone);
153	d.setTime(ts);
154	return d;
155	} else {
156	return makeUtcWrapper(new Date(ts));
157	}
158	}
159
160	// map of app. size of time units in milliseconds
161
162	var timeUnitSize = {
163	"second": 1000,
164	"minute": 60 * 1000,
165	"hour": 60 * 60 * 1000,
166	"day": 24 * 60 * 60 * 1000,
167	"month": 30 * 24 * 60 * 60 * 1000,
168	"quarter": 3 * 30 * 24 * 60 * 60 * 1000,
169	"year": 365.2425 * 24 * 60 * 60 * 1000
170	};
171
172	// the allowed tick sizes, after 1 year we use
173	// an integer algorithm
174
175	var baseSpec = [
176	[1, "second"], [2, "second"], [5, "second"], [10, "second"],
177	[30, "second"],
178	[1, "minute"], [2, "minute"], [5, "minute"], [10, "minute"],
179	[30, "minute"],
180	[1, "hour"], [2, "hour"], [4, "hour"],
181	[8, "hour"], [12, "hour"],
182	[1, "day"], [2, "day"], [3, "day"],
183	[0.25, "month"], [0.5, "month"], [1, "month"],
184	[2, "month"]
185	];
186
187	// we don't know which variant(s) we'll need yet, but generating both is
188	// cheap
189
190	var specMonths = baseSpec.concat([[3, "month"], [6, "month"],
191	[1, "year"]]);
192	var specQuarters = baseSpec.concat([[1, "quarter"], [2, "quarter"],
193	[1, "year"]]);
194
195	function init(plot) {
196	plot.hooks.processOptions.push(function (plot, options) {
197	$.each(plot.getAxes(), function(axisName, axis) {
198
199	var opts = axis.options;
200
201	if (opts.mode == "time") {
202	axis.tickGenerator = function(axis) {
203
204	var ticks = [];
205	var d = dateGenerator(axis.min, opts);
206	var minSize = 0;
207
208	// make quarter use a possibility if quarters are
209	// mentioned in either of these options
210
211	var spec = (opts.tickSize && opts.tickSize[1] ===
212	"quarter") \|\|
213	(opts.minTickSize && opts.minTickSize[1] ===
214	"quarter") ? specQuarters : specMonths;
215
216	if (opts.minTickSize != null) {
217	if (typeof opts.tickSize == "number") {
218	minSize = opts.tickSize;
219	} else {
220	minSize = opts.minTickSize[0] * timeUnitSize[opts.minTickSize[1]];
221	}
222	}
223
224	for (var i = 0; i < spec.length - 1; ++i) {
225	if (axis.delta < (spec[i][0] * timeUnitSize[spec[i][1]]
226	+ spec[i + 1][0] * timeUnitSize[spec[i + 1][1]]) / 2
227	&& spec[i][0] * timeUnitSize[spec[i][1]] >= minSize) {
228	break;
229	}
230	}
231
232	var size = spec[i][0];
233	var unit = spec[i][1];
234
235	// special-case the possibility of several years
236
237	if (unit == "year") {
238
239	// if given a minTickSize in years, just use it,
240	// ensuring that it's an integer
241
242	if (opts.minTickSize != null && opts.minTickSize[1] == "year") {
243	size = Math.floor(opts.minTickSize[0]);
244	} else {
245
246	var magn = Math.pow(10, Math.floor(Math.log(axis.delta / timeUnitSize.year) / Math.LN10));
247	var norm = (axis.delta / timeUnitSize.year) / magn;
248
249	if (norm < 1.5) {
250	size = 1;
251	} else if (norm < 3) {
252	size = 2;
253	} else if (norm < 7.5) {
254	size = 5;
255	} else {
256	size = 10;
257	}
258
259	size *= magn;
260	}
261
262	// minimum size for years is 1
263
264	if (size < 1) {
265	size = 1;
266	}
267	}
268
269	axis.tickSize = opts.tickSize \|\| [size, unit];
270	var tickSize = axis.tickSize[0];
271	unit = axis.tickSize[1];
272
273	var step = tickSize * timeUnitSize[unit];
274
275	if (unit == "second") {
276	d.setSeconds(floorInBase(d.getSeconds(), tickSize));
277	} else if (unit == "minute") {
278	d.setMinutes(floorInBase(d.getMinutes(), tickSize));
279	} else if (unit == "hour") {
280	d.setHours(floorInBase(d.getHours(), tickSize));
281	} else if (unit == "month") {
282	d.setMonth(floorInBase(d.getMonth(), tickSize));
283	} else if (unit == "quarter") {
284	d.setMonth(3 * floorInBase(d.getMonth() / 3,
285	tickSize));
286	} else if (unit == "year") {
287	d.setFullYear(floorInBase(d.getFullYear(), tickSize));
288	}
289
290	// reset smaller components
291
292	d.setMilliseconds(0);
293
294	if (step >= timeUnitSize.minute) {
295	d.setSeconds(0);
296	}
297	if (step >= timeUnitSize.hour) {
298	d.setMinutes(0);
299	}
300	if (step >= timeUnitSize.day) {
301	d.setHours(0);
302	}
303	if (step >= timeUnitSize.day * 4) {
304	d.setDate(1);
305	}
306	if (step >= timeUnitSize.month * 2) {
307	d.setMonth(floorInBase(d.getMonth(), 3));
308	}
309	if (step >= timeUnitSize.quarter * 2) {
310	d.setMonth(floorInBase(d.getMonth(), 6));
311	}
312	if (step >= timeUnitSize.year) {
313	d.setMonth(0);
314	}
315
316	var carry = 0;
317	var v = Number.NaN;
318	var prev;
319
320	do {
321
322	prev = v;
323	v = d.getTime();
324	ticks.push(v);
325
326	if (unit == "month" \|\| unit == "quarter") {
327	if (tickSize < 1) {
328
329	// a bit complicated - we'll divide the
330	// month/quarter up but we need to take
331	// care of fractions so we don't end up in
332	// the middle of a day
333
334	d.setDate(1);
335	var start = d.getTime();
336	d.setMonth(d.getMonth() +
337	(unit == "quarter" ? 3 : 1));
338	var end = d.getTime();
339	d.setTime(v + carry * timeUnitSize.hour + (end - start) * tickSize);
340	carry = d.getHours();
341	d.setHours(0);
342	} else {
343	d.setMonth(d.getMonth() +
344	tickSize * (unit == "quarter" ? 3 : 1));
345	}
346	} else if (unit == "year") {
347	d.setFullYear(d.getFullYear() + tickSize);
348	} else {
349	d.setTime(v + step);
350	}
351	} while (v < axis.max && v != prev);
352
353	return ticks;
354	};
355
356	axis.tickFormatter = function (v, axis) {
357
358	var d = dateGenerator(v, axis.options);
359
360	// first check global format
361
362	if (opts.timeformat != null) {
363	return formatDate(d, opts.timeformat, opts.monthNames, opts.dayNames);
364	}
365
366	// possibly use quarters if quarters are mentioned in
367	// any of these places
368
369	var useQuarters = (axis.options.tickSize &&
370	axis.options.tickSize[1] == "quarter") \|\|
371	(axis.options.minTickSize &&
372	axis.options.minTickSize[1] == "quarter");
373
374	var t = axis.tickSize[0] * timeUnitSize[axis.tickSize[1]];
375	var span = axis.max - axis.min;
376	var suffix = (opts.twelveHourClock) ? " %p" : "";
377	var hourCode = (opts.twelveHourClock) ? "%I" : "%H";
378	var fmt;
379
380	if (t < timeUnitSize.minute) {
381	fmt = hourCode + ":%M:%S" + suffix;
382	} else if (t < timeUnitSize.day) {
383	if (span < 2 * timeUnitSize.day) {
384	fmt = hourCode + ":%M" + suffix;
385	} else {
386	fmt = "%b %d " + hourCode + ":%M" + suffix;
387	}
388	} else if (t < timeUnitSize.month) {
389	fmt = "%b %d";
390	} else if ((useQuarters && t < timeUnitSize.quarter) \|\|
391	(!useQuarters && t < timeUnitSize.year)) {
392	if (span < timeUnitSize.year) {
393	fmt = "%b";
394	} else {
395	fmt = "%b %Y";
396	}
397	} else if (useQuarters && t < timeUnitSize.year) {
398	if (span < timeUnitSize.year) {
399	fmt = "Q%q";
400	} else {
401	fmt = "Q%q %Y";
402	}
403	} else {
404	fmt = "%Y";
405	}
406
407	var rt = formatDate(d, fmt, opts.monthNames, opts.dayNames);
408
409	return rt;
410	};
411	}
412	});
413	});
414	}
415
416	$.plot.plugins.push({
417	init: init,
418	options: options,
419	name: 'time',
420	version: '1.0'
421	});
422
423	// Time-axis support used to be in Flot core, which exposed the
424	// formatDate function on the plot object. Various plugins depend
425	// on the function, so we need to re-expose it here.
426
427	$.plot.formatDate = formatDate;
428
429	})(jQuery);