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📜  PyQt5 - 更改标签的背景颜色以实现反悬停状态

📅  最后修改于: 2022-05-13 01:54:56.784000             🧑  作者: Mango

PyQt5 - 更改标签的背景颜色以实现反悬停状态

在本文中,我们将了解如何在标签处于反悬停状态时更改标签的背景颜色,即当光标未悬停在标签上时,当光标到达标签时,它将恢复其默认颜色,以及何时光标不在标签上,它会改变颜色

为此,我们必须更改与标签对象一起使用的样式表代码,并且必须为反悬停设置背景颜色。

下面是样式表代码——

QLabel::!hover
{
background-color : lightgreen;
}

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 label
        label = QLabel("Hello Geeks", self)
  
        # setting geometry of the label
        label.setGeometry(200, 150, 100, 40)
  
        # setting background color to label when 
        # mouse is not hovering over it(anti hover)
        label.setStyleSheet("QLabel::! hover"
                            "{"
                            "background-color : lightgreen;"
                            "}")
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

输出 :