Python/pyqt5/CODE/qt04x範例程式/qt0410_QCheckbox.py

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# -*- coding: utf-8 -*-
'''
簡介
PyQt5中QCheckBox範例
'''
import sys
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from PyQt5.QtCore import Qt
class CheckBoxDemo(QWidget):
def __init__(self, parent=None):
super(CheckBoxDemo , self).__init__(parent)
groupBox = QGroupBox("Checkboxes")
groupBox.setFlat( False )
layout = QHBoxLayout()
self.checkBox1= QCheckBox("&Checkbox1")
self.checkBox1.setChecked(True)
self.checkBox1.stateChanged.connect( lambda:self.btnstate(self.checkBox1) )
layout.addWidget(self.checkBox1)
self.checkBox2 = QCheckBox("Checkbox2")
self.checkBox2.toggled.connect( lambda:self.btnstate(self.checkBox2) )
layout.addWidget(self.checkBox2)
self.checkBox3 = QCheckBox("tristateBox")
self.checkBox3.setTristate(True)
self.checkBox3.setCheckState(Qt.PartiallyChecked )
self.checkBox3.stateChanged.connect( lambda:self.btnstate(self.checkBox3) )
layout.addWidget(self.checkBox3)
groupBox.setLayout(layout)
mainLayout = QVBoxLayout()
mainLayout.addWidget(groupBox)
self.setLayout(mainLayout)
self.setWindowTitle("checkbox demo")
def btnstate(self,btn ):
chk1Status = self.checkBox1.text()+", isChecked="+ str( self.checkBox1.isChecked() ) + ', chekState=' + str(self.checkBox1.checkState()) +"\n"
chk2Status = self.checkBox2.text()+", isChecked="+ str( self.checkBox2.isChecked() ) + ', checkState=' + str(self.checkBox2.checkState()) +"\n"
chk3Status = self.checkBox3.text()+", isChecked="+ str( self.checkBox3.isChecked() ) + ', checkState=' + str(self.checkBox3.checkState()) +"\n"
print(chk1Status + chk2Status + chk3Status )
if __name__ == '__main__':
app = QApplication(sys.argv)
checkboxDemo = CheckBoxDemo()
checkboxDemo.show()
sys.exit(app.exec_())