PyQt5 – 当鼠标悬停在中间的复选框上时设置指标的背景颜色
在这篇文章中,我们将看到如何为一个处于中间状态的复选框设置背景色,并将鼠标悬停在它上面。默认情况下,复选框只有两种状态,但我们也可以在setTristate方法的帮助下建立第三种状态,即不检查或不检查的状态,它处于这两种状态之间,称为中间状态。
为了给中间状态的指示器添加背景色,我们必须改变中间状态的指示器的样式表,当光标悬停在它上面时,下面是样式表代码。
QCheckBox::indicator:indeterminate:hover
{
background-color : blue;
}
以下是实施情况。
# importing libraries
from PyQt5.QtWidgets import *
from PyQt5 import QtCore, QtGui
from PyQt5.QtGui import *
from PyQt5.QtCore import *
import sys
class Window(QMainWindow):
def __init__(self):
super().__init__()
# setting title
self.setWindowTitle("Python ")
# setting geometry
self.setGeometry(100, 100, 600, 400)
# calling method
self.UiComponents()
# showing all the widgets
self.show()
# method for widgets
def UiComponents(self):
# creating the check-box
checkbox = QCheckBox('Geek ?', self)
# setting geometry of check box
checkbox.setGeometry(200, 150, 100, 30)
# creating tri-state check box
checkbox.setTristate(True)
# adding background color to the indicator
# when it is in intermediate state and cursor hover over it
checkbox.setStyleSheet("QCheckBox::indicator:indeterminate:hover"
"{"
"background-color : blue;"
"}")
# create pyqt5 app
App = QApplication(sys.argv)
# create the instance of our Window
window = Window()
# start the app
sys.exit(App.exec())