In this article we will see how we can get the tight bounding rectangle of the spin box’s font i.e text. The bounding rectangle always covers at least the set of pixels the text would cover if drawn at (0, 0).
Note : Newline characters are processed as normal characters, not as line breaks.
In order to do this we use tightBoundingRect
method with the spin box’s QFontMetrics object.
Syntax : font_metrics.tightBoundingRect(text)
Argument : It takes string as argument
Return : It returns QRect object.
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( 1 , 999999 )
# setting prefix to spin
self .spin.setPrefix( "PREFIX " )
# setting suffix to spin
self .spin.setSuffix( " SUFFIX" )
# setting strike out to the font
font = self .spin.font()
font.setStrikeOut( True )
self .spin.setFont(font)
# 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()
# text
text = self .spin.text()
# getting the tight bounding rectangle
value = f_metrics.tightBoundingRect(text)
# setting text to the label
label.setText( "Tight Rectangle : " + str (value))
# create pyqt5 app App = QApplication(sys.argv)
# create the instance of our Window window = Window()
# start the app sys.exit(App. exec ())
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Output :