PyQt5 QSpinBox – 如何获得尺寸提示
在这篇文章中,我们将看到如何获得旋转盒的尺寸提示。尺寸提示是旋转盒的推荐尺寸。推荐的尺寸与布局的大小有关,如果窗口的大小很大,并且有很少的小部件,那么尺寸提示就会比正常的大。
为了做到这一点,我们使用自旋盒对象的sizeHint方法。
语法: spin_box.sizeHint()
参数: 它不需要参数
返回: 它返回QSize对象
以下是实现方法
# 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, 9)
# setting prefix to spin
self.spin.setPrefix("PREFIX ")
# setting suffix to spin
self.spin.setSuffix(" SUFFIX")
# creating a label
self.label = QLabel(self)
# making label multi line
self.label.setWordWrap(True)
# setting label geometry
self.label.setGeometry(100, 200, 250, 60)
# getting the size hint
value = self.spin.sizeHint()
# setting text to the label
self.label.setText("Recommended Size : " + str(value))
# create pyqt5 app
App = QApplication(sys.argv)
# create the instance of our Window
window = Window()
# start the app
sys.exit(App.exec())
输出: