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from PyQt5.QtWidgets import QDialog, QFormLayout, QLineEdit, QComboBox, QDialogButtonBox, QApplication, QMessageBox
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from PyQt5.QtGui import QPixmap, QIcon
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from PyQt5.QtCore import Qt
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import sys
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import re
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class AreaSettingWidget(QDialog):
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def __init__(self, parent=None):
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super().__init__(parent)
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self.initUI()
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def initUI(self):
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layout = QFormLayout()
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varType = QComboBox()
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varType.addItems(['AI', 'AO', 'DI', 'DO'])
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varType.setObjectName('varType')
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channelNums = QLineEdit()
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channelNums.setObjectName('channelNums')
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channelBytes = QLineEdit()
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channelBytes.setObjectName('channelBytes')
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layout.addRow('协议类型：', varType)
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layout.addRow('通道数：', channelNums)
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layout.addRow("字节长度:", channelBytes)
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button_box = QDialogButtonBox(QDialogButtonBox.Ok | QDialogButtonBox.Cancel)
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button_box.accepted.connect(self.check_input)
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button_box.rejected.connect(self.reject)
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layout.addRow(button_box)
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self.setWindowIcon(QIcon('../Static/zhjt.ico'))
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self.setWindowFlags(self.windowFlags() & ~Qt.WindowContextHelpButtonHint) # 去掉标题栏的问号
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self.setLayout(layout)
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self.setWindowTitle("通道配置")
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def getParameters(self):
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varType = self.findChild(QComboBox, "varType").currentText()
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channelNums = self.findChild(QLineEdit, "channelNums").text()
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channelBytes = self.findChild(QLineEdit, "channelBytes").text()
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return varType, channelNums, channelBytes
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def check_input(self):
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varType, channelNums, channelBytes = self.getParameters()
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if not channelNums or not channelBytes:
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QMessageBox.warning(self, '警告', '有值未输入。')
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elif not re.match(r'^[-+]?\d*\.?\d*$', channelNums) or not re.match(r'^[-+]?\d*\.?\d*$', channelBytes):
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QMessageBox.warning(self, '警告', '请输入数字。')
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else:
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self.accept() # 所有输入都是数字且不为空时接受对话框
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if __name__ == '__main__':
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app = QApplication(sys.argv)
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window = AreaSettingWidget()
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window.show()
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sys.exit(app.exec_())
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