PyQt5 – QDoubleSpinBox
QDoubleSpinBox allows the user to choose a value by clicking the up and down buttons or by pressing Up or Down on the keyboard to increase or decrease the value currently displayed. The user can also type the value in manually. The spin box supports double values but can be extended to use different strings. Below is how the double spin box looks like
Example :
A window having a Double Spinbox and a label, when value changes a message will appear in the label displaying the current value.
Below is the implementation
# 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 ) # adding action to the double spin box d_spin.valueChanged.connect( lambda : spin_method()) # creating a label label = QLabel( "w3wiki" , self ) # setting geometry to the label label.setGeometry( 100 , 200 , 300 , 80 ) # making label multi line label.setWordWrap( True ) def spin_method(): # getting current value of double spin box value = d_spin.value() # setting text to the label label.setText( "Current Value : " + str (value)) # create pyqt5 app App = QApplication(sys.argv) # create the instance of our Window window = Window() # start the app sys.exit(App. exec ()) |
Output :