PyQt5 QSpinBox – 获取字体信息对象
在这篇文章中,我们将看到如何获得旋转盒子的字体信息对象,为了设置字体,使用setFont方法,该方法以QFont对象为参数,在旋转盒子对象中使用它将改变所有文本的字体。字体信息对象是一个告诉文本属性的对象,比如它是否是粗体字等等。
为了获得字体信息,我们使用fontInfo方法
语法: spin_box.fontInfo()
参数: 它不需要参数
返回: 它返回QFontInfo对象
下面是实现方法
# 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 range to the spin box
self.spin.setRange(0, 999999)
# setting prefix to spin
self.spin.setPrefix("Prefix ")
# setting suffix to spin
self.spin.setSuffix(" Suffix")
# setting font to the spin box
self.spin.setFont(QFont('Arial', 12))
# creating a label
label = QLabel(self)
# making it multi line
label.setWordWrap(True)
# setting its geometry
label.setGeometry(100, 200, 200, 60)
# getting font info of spin box
font_info = self.spin.fontInfo()
# setting text to the label
label.setText(str(font_info))
# create pyqt5 app
App = QApplication(sys.argv)
# create the instance of our Window
window = Window()
# start the app
sys.exit(App.exec())
输出: