PyQt5 QSpinBox – 从子区域中减去区域
在本文中,我们将看到如何从旋转框的子区域中减去该区域,子区域包含旋转框的子区域所占据的组合区域。为了获得子区域,我们使用childrenRegion
方法。下面是减法区域的表示。
In order to do this we use subtracted method with the children region object of the spin box
Syntax : children_region.subtracted(region)
Argument : It takes QRegion object as 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(0, 999999)
# setting prefix to spin
self.spin.setPrefix("Prefix ")
# setting suffix to spin
self.spin.setSuffix(" Suffix")
# getting the children region
children_region = self.spin.childrenRegion()
# creating a label
label = QLabel(self)
label.setWordWrap(True)
# setting geometry to the label
label.setGeometry(100, 200, 200, 60)
# creating a region
region = QRegion(QRect(1, 1, 20, 20))
# subtracting a region
children_region.subtracted(region)
# setting text to the label
label.setText("New region : " + str(children_region))
# create pyqt5 app
App = QApplication(sys.argv)
# create the instance of our Window
window = Window()
window.spin.setFocus()
# start the app
sys.exit(App.exec())
输出 :