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03-QAbstractButton-状态设置.py
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03-QAbstractButton-状态设置.py
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import sys
from PyQt5.Qt import *
app = QApplication(sys.argv)
window = QWidget()
window.setWindowTitle("QAbstractButton-状态设置")
window.resize(500, 500)
window.move(400, 250)
btn = QPushButton(window)
icon = QIcon("../Icons/minus_48px.ico")
btn.setIcon(icon)
push_button = QPushButton(window)
push_button.setText("这是QPushButton")
push_button.move(100, 100)
push_button.setStyleSheet(
"QPushButton:pressed {background-color: red;}"
) # 通过QSS设置了按下时的样式
radio_button = QRadioButton(window)
radio_button.setText("这是QRadioButton")
radio_button.move(100, 150)
check_box = QCheckBox(window)
check_box.setText("这是QCheckBox")
check_box.move(100, 200)
# 把三个按钮都置为按下状态
# push_button.setDown(True)
# radio_button.setDown(True)
# check_box.setDown(True)
push_button.setCheckable(True) # 设置按钮为可被选中
print("push_button 是否能被选中:", push_button.isCheckable())
print("radio_button 是否能被选中:", radio_button.isCheckable())
print("check_box 是否能被选中:", check_box.isCheckable())
push_button.setChecked(True) # 设置为被选中
radio_button.setChecked(True)
check_box.setChecked(True)
print("push_button是否被选中了:", push_button.isChecked())
print("radio_button是否被选中了:", radio_button.isChecked())
print("check_box是否被选中了:", check_box.isChecked())
def slot():
"""槽函数"""
push_button.toggle() # 交换 非选中/被选中 状态
radio_button.toggle()
# check_box.toggle()
check_box.setChecked(not check_box.isChecked()) # 等同于 toggle()
btn.pressed.connect(slot)
check_box.setEnabled(False) # 设置不可用,但仍然可被 btn 的槽函数控制是否被选中
window.show()
sys.exit(app.exec_())