PersianDatePicker

[khalili-mahdi]

i used some of your code and created something like this :

import QtQuick 2.8
import QtQuick.Window 2.2
import QtQuick.Controls 2.1

Rectangle {
    property date currentDate: new Date()
    width: frame.implicitWidth + 10
    height: frame.implicitHeight + 10

    function formatText(count, modelData) {
        var data = count === 12 ? modelData + 1 : modelData;
        return data.toString().length < 2 ? "0" + data : data;
    }

    FontMetrics {
        id: fontMetrics
    }

    Component {
        id: delegateComponent

        Label {
            text: formatText(Tumbler.tumbler.count, modelData)
            opacity: 1.0 - Math.abs(Tumbler.displacement) / (Tumbler.tumbler.visibleItemCount / 2)
            horizontalAlignment: Text.AlignHCenter
            verticalAlignment: Text.AlignVCenter
            font.pixelSize: fontMetrics.font.pixelSize * 1.25
        }
    }

    Frame {
        id: frame
        padding: 0
        anchors.centerIn: parent

        Row {
            id: row

            Tumbler {
                id: yearTumbler
                model: getYearList()
                currentIndex: today_as_jalali()
                delegate: delegateComponent
            }

            Tumbler {
                id: monthTumbler
                model: getMonthList()
                delegate: delegateComponent
            }

            Tumbler {
                id: dayTumbler
                model: getDayList()
                delegate: delegateComponent
            }
        }
    }
    function getDayList(){
        var temp = []
        var x = dayInMonth(yearTumbler.currentItem,monthTumbler.currentIndex+1)
        for(var i = 1;i<=x;i++){
            temp.push(i)
        }
        return temp;
    }

    function dayInMonth(year,month)
        {
            month = month - 1
            if(month<0)return -1;
            if(month<6)return 31;
            if(month<11)return 30;

            var ary = [1, 5, 9, 13, 17, 22, 26, 30];
            var b = year % 33;
            for (var i = 0;i < ary.length; i++)
                if (b === ary[i])
                    return 30;
            return 29;
        }

    function getYearList(){
        var temp = [];
        for (var i = 1300;i<=1410;i++){
            temp.push(i);
        }
        return temp
    }

    function getMonthList(){
        var temp = []
        for(var i = 1;i<=12;i++){
            temp.push(monthName(i));
        }
        return temp;
    }

    function monthName(i){
        switch(i)
        {
        case 1:
            return "فروردین";
        case 2:
            return "اردیبهشت";
        case 3:
            return "خرداد";
        case 4:
            return "تیر";
        case 5:
            return "مرداد";
        case 6:
            return "شهریور";
        case 7:
            return "مهر";
        case 8:
            return "آبان";
        case 9:
            return "آذر";
        case 10:
            return "دی";
        case 11:
            return "بهمن";
        case 12:
            return "اسفند";
        }
    }
    function today_as_jalali(){
        var cur = Qt.formatDateTime(new Date(), "yyMMdd")
        var x = gregorian_to_jalali(currentDate.getFullYear(),currentDate.getMonth(),currentDate.getDay());
        return x[0]%100;
    }

    function gregorian_to_jalali(gy,gm,gd){
            var g_d_m=[0,31,59,90,120,151,181,212,243,273,304,334];
            var jy=(gy<=1600)?0:979;
            gy-=(gy<=1600)?621:1600;
            var gy2=(gm>2)?(gy+1):gy;
            var days=(365*gy) +(parseInt((gy2+3)/4)) -(parseInt((gy2+99)/100))
                    +(parseInt((gy2+399)/400)) -80 +gd +g_d_m[gm-1];
            jy+=33*(parseInt(days/12053));
            days%=12053;
            jy+=4*(parseInt(days/1461));
            days%=1461;
            jy+=parseInt((days-1)/365);
            if(days > 365)days=(days-1)%365;
            var jm=(days < 186)?1+parseInt(days/31):7+parseInt((days-186)/30);
            var jd=1+((days < 186)?(days%31):((days-186)%30));
            return [jy,jm,jd];
        }
}

[khalili-mahdi]

you may want to edit and add this to your files too