PyQt5 QCommandLinkButton – 为组合的 Checked 和 Hover 状态设置边框

在本文中，我们将看到如何根据选中和悬停状态组合为可选中的 QCommandLinkButton 设置边框。命令链接按钮是一种特殊类型的按钮，它具有按钮和单选按钮的特性。默认情况下，命令链接按钮没有额外的边框，尽管当它被按下时我们能够看到边框，我们也可以为其设置自定义边框。

我们可以借助setCheckable方法使命令链接按钮成为可检查状态，基本上有两种检查状态，一种是检查状态，即处于按下状态时，另一种是未检查状态，即处于释放状态时。

为此，我们将为它设置样式表代码，因为我们使用setStyleSheet方法和命令链接按钮对象，下面是样式表代码

QCommandLinkButton::checked
{
border : 4px solid green;
}
QCommandLinkButton::checked::hover
{
border : 4px solid pink;
}
QCommandLinkButton::!checked
{
border : 2px solid red;
}

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, 500, 400)
  
        # calling method
        self.UiComponents()
  
        # showing all the widgets
        self.show()
  
    # method for components
    def UiComponents(self):
  
        # creating a command link button
        cl_button = QCommandLinkButton("Press", self)
  
        # making it chekable
        cl_button.setCheckable(True)
  
        # setting geometry
        cl_button.setGeometry(150, 100, 200, 50)
  
        # setting style sheet
        # setting border to it for checked and unchecked state
        # setting border when checked and mouse hover over it
        cl_button.setStyleSheet("QCommandLinkButton::! checked"
                                "{"
                                "border : 2px solid red;"
                                "}"
                                "QCommandLinkButton::checked"
                                "{"
                                "border : 4px solid green;"
                                "}"
                                "QCommandLinkButton::checked::hover"
                                "{"
                                "border : 4px solid pink;"
                                "}")
  
  
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

输出 ：