PyQt5 QDoubleSpinBox – 设置样式表

在这篇文章中，我们将看到如何为QDoubleSpinBox设置样式表。样式表是用来设置颜色、背景和双旋转框的各种样式的。通过样式表，我们可以为它添加边框，并制作我们自己的自定义双旋盒。

为了做到这一点，我们将使用双旋盒对象的setStyleSheet方法。

语法： dd_spin.setStyleSheet(code)

参数： 它接受字符串作为参数

返回： 它返回无。

下面是样式表的示例代码

QDoubleSpinBox
{
border : 2px solid black;
background : white;
}
QDoubleSpinBox::hover
{
border : 2px solid green;
background : lightgreen;
}
QDoubleSpinBox::up-arrow
{
border : 1px solid black;
background : blue;
}
QDoubleSpinBox::down-arrow
{
border : 1px solid black;
background : red;
}

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, 500, 400)
 
        # calling method
        self.UiComponents()
 
        # showing all the widgets
        self.show()
 
    # method for components
    def UiComponents(self):
 
        # creating double spin box
        d_spin = QDoubleSpinBox(self)
 
        # setting geometry to the double spin box
        d_spin.setGeometry(100, 100, 150, 40)
 
        # setting decimal precision
        d_spin.setDecimals(1)
 
        # step type
        step_type = QAbstractSpinBox.AdaptiveDecimalStepType
 
        # adaptive step type
        d_spin.setStepType(step_type)
 
        # setting style sheet to the double spin box
        d_spin.setStyleSheet("QDoubleSpinBox"
                             "{"
                             "border : 2px solid black;"
                             "background : white;"
                             "}"
                             "QDoubleSpinBox::hover"
                             "{"
                             "border : 2px solid green;"
                             "background : lightgreen;"
                             "}"
                             "QDoubleSpinBox::up-arrow"
                             "{"
                             "border : 1px solid black;"
                             "background : blue;"
                             "}"
                             "QDoubleSpinBox::down-arrow"
                             "{"
                             "border : 1px solid black;"
                             "background : red;"
                             "}"
                             )
 
 
        # creating a label
        label = QLabel("GeeksforGeeks", self)
 
        # setting geometry to the label
        label.setGeometry(100, 200, 300, 80)
 
        # making label multi line
        label.setWordWrap(True)
 
 
 
 
 
# create pyqt5 app
App = QApplication(sys.argv)
 
# create the instance of our Window
window = Window()
 
# start the app
sys.exit(App.exec())