PyQt5 – 将背景颜色设置为从中间状态按下的指示器 |复选框
在本文中,我们将看到当我们在中间状态按下它时,如何为按下的指示器设置背景颜色。当它被按下并返回到其他状态的默认状态时,它的颜色应该会发生变化。默认情况下,复选框只有两个状态,虽然我们也可以在setTristate
方法的帮助下创建第三种状态,即未选中或未选中它在这两种状态之间称为中间状态。
为此,我们必须更改与复选框对象一起使用的中间指示器的样式表代码。下面是样式表代码。
QCheckBox::indicator:indeterminate:pressed
{
background-color : blue;
}
下面是实现。
# 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 pressed indicator
# when it is in intermediate state
checkbox.setStyleSheet("QCheckBox::indicator:indeterminate:pressed"
"{"
"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())
输出 :