PyQt5 QSpinBox – 在反按下状态下为向下按钮添加边框

PyQt5 QSpinBox – 在反按下状态下为向下按钮添加边框

在这篇文章中,我们将看到如何在旋转盒的向下按钮上添加边框,当它处于反按下状态时。旋转框由上下两个按钮组成,向下按钮用于减少数值,它有自己的默认边框,尽管我们可以改变它。自定义的边框只有在按钮未被按下时才会出现在向下按钮上,否则就会出现正常的边框。

为了做到这一点,我们必须改变与旋转框相关的样式表代码,下面是样式表代码

QSpinBox::down-button:!pressed
{
border : 4px solid red;
}

下面是实现的过程

# 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 spin box
        self.spin = QSpinBox(self)

        # setting geometry to spin box
        self.spin.setGeometry(100, 100, 250, 40)

        # setting prefix to spin
        self.spin.setPrefix("Prefix ")

        # setting suffix to spin
        self.spin.setSuffix(" Suffix")

        # setting style sheet to the spin box
        # adding border to the down button of spin box
        # and it is in anti pressed state
        self.spin.setStyleSheet("QSpinBox::down-button:! pressed"
                                "{"
                                "border : 4px solid red;"
                                "}")

# create pyqt5 app
App = QApplication(sys.argv)

# create the instance of our Window
window = Window()

# start the app
sys.exit(App.exec())

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