import QtQuick
import QtQuick.Controls
//import QtQuick.VirtualKeyboard 2.15

TextField {
    id: control
    placeholderText:qsTr("XX XX XX")
    //    font.pointSize: 13
    font.family: "微软雅黑"
    placeholderTextColor: "#A5A5A5"
    color: "#1D2129"
    focus: true
    selectByMouse: true
    //    validator: RegExpValidator { // 使用正则表达式验证器
    //           regExp: /[0-9A-F]+/ // 只能输入0~9的整数和A～F的大写字母
    //       }
    background: Rectangle {
        implicitWidth: 330
        implicitHeight: 30
        color: "#F2F3F5"
        border.color: "#0068B4"
    }
    property bool isDelete: false
    property bool isBack: false
    property bool isPaste: false
    //    maximumLength: 29//200
    Keys.onPressed: {
        isBack = (event.key === Qt.Key_Backspace)
        isDelete = (event.key === Qt.Key_Delete)
        isPaste = (event.modifiers === Qt.ControlModifier && event.key === Qt.Key_V)
        event.accepted = (event.text===" ")   //过滤键盘输入空格
    }
    onTextChanged: {

        if(isPaste){
            control.text = checkFormat(control.text)
            return
        }
        let temp = control.text
        if(!isBack&&!isDelete){

            var position = cursorPosition

            if(length === 2)
            {
                temp += " "

            }
            else if(length > 3 && (length - 2) % 3 === 0){
                temp += " "
            }
            else
            {
                position += 1
            }

            temp = checkFormat(temp)
            control.text = temp
            select(position,position)
        }
        isBack = false
        isDelete = false
        isPaste = false
    }


    function checkFormat(text){
        text = text.replace(/[^0-9a-f]/gi, '');
        let upertext = text.toUpperCase();
        let newText = upertext.split(" ").join("")
        var index = 0
        while(index < newText.length){
            if((index+1) %3 === 0){
                newText = newText.slice(0, index) + " " + newText.slice(index)
                index++
            }
            index++
        }
        return newText
    }
}