PyQt5 QSpinBox – 如何重绘它
在本文中,我们将了解如何重新绘制旋转框。在画家事件的帮助下,我们可以绘制用户想要的旋转框,但有时需要重新绘制旋转框以确保画家事件的动作。
为了做到这一点,我们对旋转框对象使用repaint
方法。
Syntax : spin_box.repaint()
Argument : It takes no argument
Return : It returns None
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 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(1, 999999)
# setting prefix to spin
self.spin.setPrefix("PREFIX ")
# setting suffix to spin
self.spin.setSuffix(" SUFFIX")
# setting background color to the spin box
self.spin.setStyleSheet("QSpinBox"
"{"
"background : lightgreen;"
"}")
# repaint the spin box
self.spin.repaint()
# create pyqt5 app
App = QApplication(sys.argv)
# create the instance of our Window
window = Window()
# start the app
sys.exit(App.exec())
输出 :