import QtQuick 2.15
import QtQuick.Controls 2.15
import QtQuick.Layouts 1.15

Column {
    id: root
    property alias text: input.text
    property bool valid: false
    property bool canEmpty: false
    property var regularExpression : /^(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9])\.(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9])\.(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9])\.(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9])$/
    TextField {
        height: 40
        width: 350
        id: input
        selectByMouse: true
        onTextChanged: {
            validate()
        }
    }
    Text {
        id: hint
        color: "red"
        font.pixelSize: 12
    }

    function reset() {
        hint.text = ""
    }
    function validate() {
        if (input.text.length <= 0) {
            hint.text = root.canEmpty ? "" : "参数不能为空"
            root.valid = root.canEmpty
            return root.valid
        }
        root.valid = root.regularExpression.test(input.text)
        if (!root.valid) {
            hint.text = "参数配置无效"
        } else {
            hint.text = ""
        }
        return root.valid
    }
}