PyQt5 QSpinBox – Checking if the character is UTF-32 format
In this article we will see how we can check if the given character in the font of the spin box is in UTF-32 format. UTF-32 is a fixed-length encoding used to encode Unicode code points that uses exactly 32 bits per code point. UTF-32 is a fixed-length encoding, in contrast to all other Unicode transformation formats, which are variable-length encodings.
In order to do this we use inFontUcs4
method with the spin box’s QFontMetrics object.
Syntax : font_metrics.inFontUcs4(unit_character)
Argument : It takes integer as argument
Return : It returns bool.
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 , 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" ) # creating a label label = QLabel( self ) # making label multi line label.setWordWrap( True ) # setting geometry to the label label.setGeometry( 100 , 200 , 300 , 60 ) # getting font metrics f_metrics = self .spin.fontMetrics() # checking if the character is in the font check = f_metrics.inFontUcs4( 1 ) # setting text to the label label.setText( " UTF Format : " + str (check)) # create pyqt5 app App = QApplication(sys.argv) # create the instance of our Window window = Window() # start the app sys.exit(App. exec ()) |
Output :