from PyQt5.QtWidgets import QDialog, QFormLayout, QLineEdit, QComboBox, QDialogButtonBox, QMessageBox
from PyQt5.QtGui import QPixmap, QIcon
from PyQt5.QtCore import Qt
import sys
import re
class DeviceDialog(QDialog):
    def __init__(self, parent=None):
        super().__init__(parent)
        self.initUI()

    def initUI(self):
        layout = QFormLayout()
        proType = QComboBox()
        proType.addItems(['DP', 'PA'])
        proType.setObjectName('ProtocolType')
        masterSlaveModel = QComboBox()
        masterSlaveModel.addItems(['主站', '从站'])
        masterSlaveModel.setObjectName('masterSlaveModel')

        deviceName = QLineEdit()
        deviceName.setObjectName('deviceName')

        pvUpperLimit = QLineEdit()
        pvUpperLimit.setObjectName('pvUpperLimit')

        pvLowerLimit = QLineEdit()
        pvLowerLimit.setObjectName('pvLowerLimit')

        pvUnit = QLineEdit()
        pvUnit.setObjectName('pvUnit')

        layout.addRow('协议类型', proType)
        layout.addRow('主从模式', masterSlaveModel)
        layout.addRow("设备名:", deviceName)
        layout.addRow("量程上限:", pvUpperLimit)
        layout.addRow("量程下限:", pvLowerLimit)
        layout.addRow("单位:", pvUnit)


        button_box = QDialogButtonBox(QDialogButtonBox.Ok | QDialogButtonBox.Cancel)
        ok_button = button_box.button(QDialogButtonBox.Ok)
        ok_button.setText("确定")  # 设置Ok按钮的文本
        cancel_button = button_box.button(QDialogButtonBox.Cancel)
        cancel_button.setText("取消")  # 设置Cancel按钮的文本

        button_box.accepted.connect(self.check_input)
        button_box.rejected.connect(self.reject)

        layout.addRow(button_box)
        self.setWindowIcon(QIcon('../Static/zhjt.ico'))
        self.setWindowFlags(self.windowFlags() & ~Qt.WindowContextHelpButtonHint)  # 去掉标题栏的问号
        self.setLayout(layout)
        self.setWindowTitle("设备信息")

    def getParameters(self):
        proType = self.findChild(QComboBox, "ProtocolType").currentText()
        masterSlaveModel = self.findChild(QComboBox, "masterSlaveModel").currentText()
        deviceName = self.findChild(QLineEdit, "deviceName").text()
        pvUpperLimit = self.findChild(QLineEdit, "pvUpperLimit").text()
        pvLowerLimit = self.findChild(QLineEdit, "pvLowerLimit").text()
        pvUnit = self.findChild(QLineEdit, "pvUnit").text()
        return deviceName, proType, masterSlaveModel, pvUpperLimit, pvLowerLimit, pvUnit

    def check_input(self):
        deviceName, proType, masterSlaveModel, pvUpperLimit, pvLowerLimit, pvUnit = self.getParameters()

        if not pvUpperLimit or not pvLowerLimit or not pvUnit or not deviceName:
            QMessageBox.warning(self, '警告', '有值未输入。')
        elif not re.match(r'^[-+]?\d*\.?\d*$', pvUpperLimit) or not re.match(r'^[-+]?\d*\.?\d*$', pvLowerLimit):
            QMessageBox.warning(self, '警告', '请输入数字。')
        elif pvUpperLimit < pvLowerLimit:
            QMessageBox.warning(self, '警告', '量程输入有误。')
        else:
            self.accept()  # 所有输入都是数字且不为空时接受对话框