PyQt5 – 获取组合框中项目图标的大小

在这篇文章中，我们将看到如何获得组合框中项的图标大小。在默认情况下，虽然我们可以在setItemIcon方法的帮助下为每个项目设置图标，但在组合框中没有设置图标。有些时候需要调整图标的大小，为了改变项目图标的大小，我们将使用setIconSize方法。

语法： combobox.iconSize()

参数： 它不需要参数

返回： 它将返回QSize对象

以下是该方法的实现

# 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 a combo box widget
        self.combo_box = QComboBox(self)
  
        # setting geometry of combo box
        self.combo_box.setGeometry(200, 150, 120, 30)
  
        # geek list
        geek_list = ["Geek", "Geeky Geek"]
  
        # adding list of items to combo box
        self.combo_box.addItems(geek_list)
  
        # creating editable combo box
        self.combo_box.setEditable(True)
  
        # index
        index = 0
  
        # icon
        icon = QIcon('logo.png')
  
        # adding icon to the given index
        self.combo_box.setItemIcon(index, icon)
  
        # setting icon size
        self.combo_box.setIconSize(QSize(10, 10))
  
        # getting size
        size = self.combo_box.iconSize()
  
        # creating label to show the size
        label = QLabel("Icon size = " + str(size), self)
  
        # setting geometry to the label
        label.setGeometry(170, 100, 300, 30)
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())