PyQt5 QDoubleSpinBox – 仅选择值
在这篇文章中,我们将看到如何选择QDoubleSpinBox的值。双层旋转框的值可以用鼠标来选择,只选择值意味着只选择值的部分,前缀和后缀将不包括在选择的部分。选择的文本可以用于复制/删除功能。前缀和后缀可以分别在setPrefix和setSuffix方法的帮助下被添加到双旋转框中。
为了做到这一点,我们将使用selectAll方法来处理双旋转框对象。
语法: dd_spin.selectAll()
参数: 它不需要参数
返回: 它返回无。
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, 500, 400)
# calling method
self.UiComponents()
# showing all the widgets
self.show()
# method for components
def UiComponents(self):
# creating double spin box
d_spin = QDoubleSpinBox(self)
# setting geometry to the double spin box
d_spin.setGeometry(100, 100, 150, 40)
# setting suffix
d_spin.setSuffix(" is the Value")
# step type
step_type = QAbstractSpinBox.AdaptiveDecimalStepType
# adaptive step type
d_spin.setStepType(step_type)
# creating a label
label = QLabel("GeeksforGeeks", self)
# setting geometry to the label
label.setGeometry(100, 200, 300, 80)
# making label multi line
label.setWordWrap(True)
# push button
push = QPushButton("Press", self)
# setting geometry to the push button
push.setGeometry(100, 150, 100, 35)
# adding action to the push button
# selecting only value
push.clicked.connect(lambda: d_spin.selectAll())
# create pyqt5 app
App = QApplication(sys.argv)
# create the instance of our Window
window = Window()
# start the app
sys.exit(App.exec())