lib/Ext/picker/Date.js
function(name, days, months, years) {
        switch (name) {
            case 'year':
                return {
                    name: 'year',
                    align: 'center',
                    data: years,
                    title: this.getYearText(),
                    flex: 3
                };
            case 'month':
                return {
                    name: name,
                    align: 'right',
                    data: months,
                    title: this.getMonthText(),
                    flex: 4
                };
            case 'day':
                return {
                    name: 'day',
                    align: 'center',
                    data: days,
                    title: this.getDayText(),
                    flex: 2
                };
        }
    }
function(name, days, months, years) {
        switch (name) {
            case 'year':
                return {
                    name: 'year',
                    align: 'center',
                    data: years,
                    title: this.getYearText(),
                    flex: 3
                };
            case 'month':
                return {
                    name: name,
                    align: 'right',
                    data: months,
                    title: this.getMonthText(),
                    flex: 4
                };
            case 'day':
                return {
                    name: 'day',
                    align: 'center',
                    data: days,
                    title: this.getDayText(),
                    flex: 2
                };
        }
    }
Returns a slot config for a specified date.
@private