PyQt5 QSpinBox – 检查高度是否与宽度有关
在这篇文章中,我们将看到如何检查旋转盒的高度是否取决于旋转盒的宽度。高度取决于宽度意味着当宽度改变时,高度也会改变。默认情况下,高度并不取决于宽度。
为了做到这一点,我们对旋转盒对象使用hasHeightForWidth方法。
语法: spin_box.hasHeightForWidth()
参数: 它不需要参数
返回: 它返回bool
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(1, 999999)
# setting prefix to spin
self.spin.setPrefix("PREFIX ")
# setting suffix to spin
self.spin.setSuffix(" SUFFIX")
# creating a label
label = QLabel(self)
# making the label multi line
label.setWordWrap(True)
# setting geometry to the label
label.setGeometry(100, 200, 200, 60)
# checking if height depend on the width
check = self.spin.hasHeightForWidth()
# setting text to the label
label.setText("Height depends on width ? " + str(check))
# create pyqt5 app
App = QApplication(sys.argv)
# create the instance of our Window
window = Window()
# start the app
sys.exit(App.exec())
输出: