PyQt5 – 胶囊状的进度条

在这篇文章中，我们将看到如何创建胶囊状的进度条。默认情况下，当我们创建进度条时，它是长方形的，尽管我们可以通过调整大小的方法来改变它的形状。但这只允许将形状从矩形改为方形。下面是普通进度条与胶囊形状的进度条的对比。

为了做到这一点，我们必须改变进度条的背景和条形的边界半径，这是通过改变CSS样式表来实现的，下面是样式表代码。

QProgressBar
{
border: solid grey;
border-radius: 15px;
color: black;
}
QProgressBar::chunk 
{
background-color: #05B8CC;
border-radius :15px;
}      

这个样式表被用于setStyleSheet方法，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 background color to window
        # self.setStyleSheet("background-color : yellow")
  
        # 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 progress bar
        bar = QProgressBar(self)
  
        # setting geometry to progress bar
        bar.setGeometry(200, 100, 200, 30)
  
        # setting the value
        bar.setValue(70)
  
        # setting alignment to center
        bar.setAlignment(Qt.AlignCenter)
  
        # setting background to color and radius
        # and bar color and bar radius
        bar.setStyleSheet("QProgressBar"
                          "{"
                          "border: solid grey;"
                          "border-radius: 15px;"
                          " color: black; "
                          "}"
                          "QProgressBar::chunk "
                          "{background-color: # 05B8CC;"
                          "border-radius :15px;"
                          "}")
  
  
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

输出 :