95 lines
2.9 KiB
JavaScript
95 lines
2.9 KiB
JavaScript
var MonthsTicker, ONE_MONTH, SingleIntervalTicker, _, copy_date, date_range_by_year, last_year_no_later_than, p, util,
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extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
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hasProp = {}.hasOwnProperty;
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_ = require("underscore");
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SingleIntervalTicker = require("./single_interval_ticker");
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util = require("./util");
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p = require("../../core/properties");
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copy_date = util.copy_date;
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last_year_no_later_than = util.last_year_no_later_than;
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ONE_MONTH = util.ONE_MONTH;
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date_range_by_year = function(start_time, end_time) {
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var date, dates, end_date, start_date;
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start_date = last_year_no_later_than(new Date(start_time));
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end_date = last_year_no_later_than(new Date(end_time));
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end_date.setUTCFullYear(end_date.getUTCFullYear() + 1);
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dates = [];
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date = start_date;
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while (true) {
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dates.push(copy_date(date));
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date.setUTCFullYear(date.getUTCFullYear() + 1);
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if (date > end_date) {
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break;
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}
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}
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return dates;
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};
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MonthsTicker = (function(superClass) {
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extend(MonthsTicker, superClass);
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function MonthsTicker() {
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return MonthsTicker.__super__.constructor.apply(this, arguments);
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}
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MonthsTicker.prototype.type = 'MonthsTicker';
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MonthsTicker.define({
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months: [p.Array, []]
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});
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MonthsTicker.prototype.initialize = function(attrs, options) {
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var interval, months;
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MonthsTicker.__super__.initialize.call(this, attrs, options);
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months = this.get('months');
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interval = months.length > 1 ? (months[1] - months[0]) * ONE_MONTH : 12 * ONE_MONTH;
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return this.set('interval', interval);
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};
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MonthsTicker.prototype.get_ticks_no_defaults = function(data_low, data_high, desired_n_ticks) {
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var all_ticks, date, month_dates, months, months_of_year, ticks_in_range, year_dates;
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year_dates = date_range_by_year(data_low, data_high);
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months = this.get('months');
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months_of_year = function(year_date) {
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return months.map(function(month) {
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var month_date;
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month_date = copy_date(year_date);
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month_date.setUTCMonth(month);
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return month_date;
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});
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};
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month_dates = _.flatten((function() {
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var i, len, results;
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results = [];
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for (i = 0, len = year_dates.length; i < len; i++) {
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date = year_dates[i];
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results.push(months_of_year(date));
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}
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return results;
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})());
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all_ticks = _.invoke(month_dates, 'getTime');
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ticks_in_range = _.filter(all_ticks, (function(tick) {
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return (data_low <= tick && tick <= data_high);
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}));
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return {
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"major": ticks_in_range,
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"minor": []
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};
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};
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return MonthsTicker;
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})(SingleIntervalTicker.Model);
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module.exports = {
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Model: MonthsTicker
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};
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