shubhadownloader/src/util/Date.js

There is large amount of information available in market place. The markets are always in sync. In today's world investors find it very difficult to make effective use of information available to them. Shubha Downloader is great tool which resolves this problem and helps investor to increase his productivity and stay focused on decision making. Shubha Downloader enable end user to download market data from available sources and organize it. Shubha Downloader is Open source & FREE utility for end users. Shubha Downloader have main features as follows End of the day market data from web to your favorite charting application . Fundamental market data from web to your favorite charting application. Market reports from web to your favorite charting application.

Ext.define('Ext.calendar.util.Date', {
    
    singleton: true,
    
    diffDays: function(start, end) {
        var day = 1000 * 60 * 60 * 24,
            clear = Ext.Date.clearTime,
            diff = clear(end, true).getTime() - clear(start, true).getTime();
        
        return Math.ceil(diff / day);
    },

    copyTime: function(fromDt, toDt) {
        var dt = Ext.Date.clone(toDt);
        dt.setHours(
            fromDt.getHours(),
            fromDt.getMinutes(),
            fromDt.getSeconds(),
            fromDt.getMilliseconds());

        return dt;
    },

    compare: function(dt1, dt2, precise) {
        if (precise !== true) {
            dt1 = Ext.Date.clone(dt1);
            dt1.setMilliseconds(0);
            dt2 = Ext.Date.clone(dt2);
            dt2.setMilliseconds(0);
        }
        return dt2.getTime() - dt1.getTime();
    },

    // private helper fn
    maxOrMin: function(max) {
        var dt = (max ? 0: Number.MAX_VALUE),
        i = 0,
        args = arguments[1],
        ln = args.length;
        for (; i < ln; i++) {
            dt = Math[max ? 'max': 'min'](dt, args[i].getTime());
        }
        return new Date(dt);
    },

    max: function() {
        return this.maxOrMin.apply(this, [true, arguments]);
    },

    min: function() {
        return this.maxOrMin.apply(this, [false, arguments]);
    },
    
    today: function() {
        return Ext.Date.clearTime(new Date());
    },
    
    /**
     * Adds time to the specified date and returns a new Date instance as the result (does not
     * alter the original date object). Time can be specified in any combination of milliseconds
     * to years, and the function automatically takes leap years and daylight savings into account.
     * Some syntax examples:<code><pre>
var now = new Date();

// Add 24 hours to the current date/time:
var tomorrow = Extensible.Date.add(now, { days: 1 });

// More complex, returning a date only with no time value:
var futureDate = Extensible.Date.add(now, {
    weeks: 1,
    days: 5,
    minutes: 30,
    clearTime: true
});
</pre></code>
     * @param {Date} dt The starting date to which to add time
     * @param {Object} o A config object that can contain one or more of the following
     * properties, each with an integer value:
     * 
     * - millis
     * - seconds
     * - minutes
     * - hours
     * - days
     * - weeks
     * - months
     * - years
     * 
     * You can also optionally include the property "clearTime: true" which will perform all of the
     * date addition first, then clear the time value of the final date before returning it.
     * @return {Date} A new date instance containing the resulting date/time value
     */
    add : function(dt, o) {
        if (!o) {
            return dt;
        }
        var ExtDate = Ext.Date,
            dateAdd = ExtDate.add,
            newDt = ExtDate.clone(dt);
        
        if (o.years) {
            newDt = dateAdd(newDt, ExtDate.YEAR, o.years);
        }
        if (o.months) {
            newDt = dateAdd(newDt, ExtDate.MONTH, o.months);
        }
        if (o.weeks) {
            o.days = (o.days || 0) + (o.weeks * 7);
        }
        if (o.days) {
            newDt = dateAdd(newDt, ExtDate.DAY, o.days);
        }
        if (o.hours) {
            newDt = dateAdd(newDt, ExtDate.HOUR, o.hours);
        }
        if (o.minutes) {
            newDt = dateAdd(newDt, ExtDate.MINUTE, o.minutes);
        }
        if (o.seconds) {
            newDt = dateAdd(newDt, ExtDate.SECOND, o.seconds);
        }
        if (o.millis) {
            newDt = dateAdd(newDt, ExtDate.MILLI, o.millis);
        }
         
        return o.clearTime ? ExtDate.clearTime(newDt) : newDt;
    }
});