In this article we will see how we can get size of the spin box’s font i.e text. In order to get the size object we have to get the QFontMetrics object of the size box to get the size. The size will be in pixels.
In order to do this we use size method with the spin box’s QFontMetrics object.
Syntax : font_metrics.size(0, text)
Argument : It takes two argument one is the integer value which refer to the flags for example 0 represent single line text and second is the spin box text.
Return : It returns QSize 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 over line to the font font = self.spin.font() font.setOverline(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 size object value = f_metrics.size(0, text) # setting text to the label label.setText("Size : " + 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 :
