src/pyams_skin/resources/js/ext/flot/jquery.flot.time.js
changeset 557 bca7a7e058a3
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/pyams_skin/resources/js/ext/flot/jquery.flot.time.js	Thu Feb 13 11:43:31 2020 +0100
@@ -0,0 +1,585 @@
+/* Pretty handling of time axes.
+
+Copyright (c) 2007-2014 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($) {
+    'use strict';
+
+    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
+            timeBase: 'seconds' // are the values in given in mircoseconds, milliseconds or seconds
+        },
+        yaxis: {
+            timeBase: 'seconds'
+        }
+    };
+
+    var floorInBase = $.plot.saturated.floorInBase;
+
+    // Method to provide microsecond support to Date like classes.
+    var CreateMicroSecondDate = function(dateType, microEpoch) {
+        var newDate = new dateType(microEpoch);
+
+        var oldSetTime = newDate.setTime.bind(newDate);
+        newDate.update = function(microEpoch) {
+            oldSetTime(microEpoch);
+
+            // Round epoch to 3 decimal accuracy
+            microEpoch = Math.round(microEpoch*1000)/1000;
+
+            // Microseconds are stored as integers
+            var seconds = microEpoch/1000;
+            this.microseconds = 1000000 * (seconds - Math.floor(seconds));
+        };
+
+        var oldGetTime = newDate.getTime.bind(newDate);
+        newDate.getTime = function () {
+            var microEpoch = oldGetTime() + this.microseconds / 1000;
+            return microEpoch;
+        };
+
+        newDate.setTime = function (microEpoch) {
+            this.update(microEpoch);
+        };
+
+        newDate.getMicroseconds = function() {
+            return this.microseconds;
+        };
+
+        newDate.setMicroseconds = function(microseconds) {
+            // Replace the microsecond part (6 last digits) in microEpoch
+            var epochWithoutMicroseconds = oldGetTime();
+            var newEpoch = epochWithoutMicroseconds + microseconds/1000;
+            this.update(newEpoch);
+        };
+
+        newDate.setUTCMicroseconds = function(microseconds) { this.setMicroseconds(microseconds); }
+
+        newDate.getUTCMicroseconds = function() { return this.getMicroseconds(); }
+
+        newDate.microseconds = null;
+        newDate.microEpoch = null;
+        newDate.update(microEpoch);
+        return newDate;
+    }
+
+    // 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 formatMicroseconds = function(n, dec) {
+			if (dec < 6 && dec > 0) {
+				var magnitude = parseFloat('1e' + (dec-6));
+				n = Math.round(Math.round(n*magnitude)/magnitude);
+				n = ('00000' + n).slice(-6,-(6 - dec));
+			} else {
+                n = Math.round(n)
+				n = ('00000' + n).slice(-6);
+			}
+			return n;
+		};
+
+        var r = [];
+        var escape = false;
+        var hours = d.getHours();
+		var isAM = hours < 12;
+
+        if (!monthNames) {
+            monthNames = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"];
+        }
+
+        if (!dayNames) {
+            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;
+		}
+
+        var decimals = -1;
+        for (var i = 0; i < fmt.length; ++i) {
+			var c = fmt.charAt(i);
+
+            if (!isNaN(Number(c)) && Number(c) > 0) {
+                decimals = Number(c);
+            } else 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 's': c = "" + formatMicroseconds(d.getMicroseconds(),decimals); 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", "Minutes", "Month", "Seconds", "Milliseconds", "Microseconds"];
+
+        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) {
+        var maxDateValue = 8640000000000000;
+
+        if (opts && opts.timeBase === 'seconds') {
+            ts *= 1000;
+        } else if (opts.timeBase === 'microseconds') {
+            ts /= 1000;
+        }
+
+        if (ts > maxDateValue) {
+            ts = maxDateValue;
+        } else if (ts < -maxDateValue) {
+            ts = -maxDateValue;
+        }
+
+        if (opts.timezone === "browser") {
+            return CreateMicroSecondDate(Date, ts);
+        } else if (!opts.timezone || opts.timezone === "utc") {
+            return makeUtcWrapper(CreateMicroSecondDate(Date, ts));
+        } else if (typeof timezoneJS !== "undefined" && typeof timezoneJS.Date !== "undefined") {
+            var d = CreateMicroSecondDate(timezoneJS.Date, ts);
+            // 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(CreateMicroSecondDate(Date, ts));
+        }
+    }
+
+    // map of app. size of time units in seconds
+    var timeUnitSizeSeconds = {
+        "microsecond": 0.000001,
+        "millisecond": 0.001,
+        "second": 1,
+        "minute": 60,
+        "hour": 60 * 60,
+        "day": 24 * 60 * 60,
+        "month": 30 * 24 * 60 * 60,
+        "quarter": 3 * 30 * 24 * 60 * 60,
+        "year": 365.2425 * 24 * 60 * 60
+    };
+
+    // map of app. size of time units in milliseconds
+    var timeUnitSizeMilliseconds = {
+        "microsecond": 0.001,
+        "millisecond": 1,
+        "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
+    };
+
+    // map of app. size of time units in microseconds
+    var timeUnitSizeMicroseconds = {
+        "microsecond": 1,
+        "millisecond": 1000,
+        "second": 1000000,
+        "minute": 60 * 1000000,
+        "hour": 60 * 60 * 1000000,
+        "day": 24 * 60 * 60 * 1000000,
+        "month": 30 * 24 * 60 * 60 * 1000000,
+        "quarter": 3 * 30 * 24 * 60 * 60 * 1000000,
+        "year": 365.2425 * 24 * 60 * 60 * 1000000
+    };
+
+    // the allowed tick sizes, after 1 year we use
+    // an integer algorithm
+
+    var baseSpec = [
+        [1, "microsecond"], [2, "microsecond"], [5, "microsecond"], [10, "microsecond"],
+        [25, "microsecond"], [50, "microsecond"], [100, "microsecond"], [250, "microsecond"], [500, "microsecond"],
+        [1, "millisecond"], [2, "millisecond"], [5, "millisecond"], [10, "millisecond"],
+        [25, "millisecond"], [50, "millisecond"], [100, "millisecond"], [250, "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"]
+    ];
+
+    // 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 dateTickGenerator(axis) {
+        var opts = axis.options,
+            ticks = [],
+            d = dateGenerator(axis.min, opts),
+            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;
+
+        var timeUnitSize;
+        if (opts.timeBase === 'seconds') {
+            timeUnitSize = timeUnitSizeSeconds;
+        } else if (opts.timeBase === 'microseconds') {
+            timeUnitSize = timeUnitSizeMicroseconds;
+        } else {
+            timeUnitSize = timeUnitSizeMilliseconds;
+        }
+
+        if (opts.minTickSize !== null && opts.minTickSize !== undefined) {
+            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 !== undefined && opts.minTickSize[1] === "year") {
+                size = Math.floor(opts.minTickSize[0]);
+            } else {
+                var magn = parseFloat('1e' + 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 === "microsecond") {
+            d.setMicroseconds(floorInBase(d.getMicroseconds(), tickSize));
+        } else if (unit === "millisecond") {
+            d.setMilliseconds(floorInBase(d.getMilliseconds(), tickSize));
+        } else 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
+
+        if (step >= timeUnitSize.millisecond) {
+            if (step >= timeUnitSize.second) {
+                d.setMicroseconds(0);
+            } else {
+                d.setMicroseconds(d.getMilliseconds()*1000);
+            }
+        }
+        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 v1000;
+        var prev;
+        do {
+            prev = v;
+            v1000 = d.getTime();
+            if (opts && opts.timeBase === 'seconds') {
+                v = v1000 / 1000;
+            } else if (opts && opts.timeBase === 'microseconds') {
+                v = v1000 * 1000;
+            } else {
+                v = v1000;
+            }
+
+            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 {
+                if (opts.timeBase === 'seconds') {
+                    d.setTime((v + step) * 1000);
+                } else if (opts.timeBase === 'microseconds') {
+                    d.setTime((v + step) / 1000);
+                } else {
+                    d.setTime(v + step);
+                }
+            }
+        } while (v < axis.max && v !== prev);
+
+        return ticks;
+    };
+
+    function init(plot) {
+        plot.hooks.processOptions.push(function (plot) {
+            $.each(plot.getAxes(), function(axisName, axis) {
+                var opts = axis.options;
+                if (opts.mode === "time") {
+                    axis.tickGenerator = dateTickGenerator;
+
+                    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 timeUnitSize;
+                        if (opts.timeBase === 'seconds') {
+                            timeUnitSize = timeUnitSizeSeconds;
+                        } else if (opts.timeBase === 'microseconds') {
+                            timeUnitSize = timeUnitSizeMicroseconds;
+                        } else {
+                            timeUnitSize = timeUnitSizeMilliseconds;
+                        }
+
+						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 factor;
+						var fmt;
+
+                        if (opts.timeBase === 'seconds') {
+                            factor = 1;
+                        } else if (opts.timeBase === 'microseconds') {
+                            factor = 1000000
+                        } else {
+                            factor = 1000;
+                        }
+
+                        if (t < timeUnitSize.second) {
+                            var decimals = -Math.floor(Math.log10(t/factor))
+
+                            // the two-and-halves require an additional decimal
+                            if (String(t).indexOf('25') > -1) {
+                                decimals++;
+                            }
+
+							fmt = "%S.%" + decimals + "s";
+                        } else
+                        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;
+    $.plot.dateGenerator = dateGenerator;
+    $.plot.dateTickGenerator = dateTickGenerator;
+    $.plot.makeUtcWrapper = makeUtcWrapper;
+})(jQuery);