PyQt5 QSpinBox – 从子区域获取边界矩形

在这篇文章中，我们将看到如何从自旋盒的子区域获得边界矩形，子区域持有自旋盒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。边界矩形指的是将覆盖即绑定整个子区域的矩形。

为了做到这一点，我们使用旋转盒的子区域对象的boundingRect方法。

语法： children_region.boundingRect()

参数： 它不需要参数

返回： 它返回QRect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")

        # getting the children region
        children_region = self.spin.childrenRegion()

        # creating a label
        label = QLabel(self)

        # setting geometry to the label
        label.setGeometry(100, 200, 200, 30)

        # getting bounding rectangle from the children region
        bounding_rectangle = children_region.boundingRect()

        # setting text to the label
        label.setText(str(bounding_rectangle))



# 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：