How to resize QCheckBox

Question

The code below creates a single Dialog window with two checkboxes. Second checkbox was constrained to a 8x8px size with setMaximumSize(8, 8) function. But it appears that the smaller size of the checkbox widget was not applied to the cross icon. So the icon is clipped by the boundaries of the checkbox widget. How to make sure the cross icon is scaled proportionally with the checkbox widget?

from PyQt4 import QtCore, QtGui
app = QtGui.QApplication([])

panel=QtGui.QDialog()
panel.setLayout(QtGui.QVBoxLayout())

checkbox1 = QtGui.QCheckBox()
panel.layout().addWidget(checkbox1)

checkbox2 = QtGui.QCheckBox()
checkbox2.setMaximumSize(8, 8)
panel.layout().addWidget(checkbox2)

panel.show()
app.exec_()

score 2 · Accepted Answer · answered Jan 22 '17 at 02:34

In this case it is best to resize using the stylesheet:

{your QCheckbox}.setStyleSheet("QCheckBox::indicator { width: npx; height: mpx;}")

Complete code:

import sys

from PyQt4 import QtGui

if __name__ == '__main__':
    app = QtGui.QApplication(sys.argv)

    panel = QtGui.QDialog()
    panel.setLayout(QtGui.QVBoxLayout())

    checkbox1 = QtGui.QCheckBox("normal1")
    panel.layout().addWidget(checkbox1)

    checkbox2 = QtGui.QCheckBox("small")
    checkbox2.setStyleSheet("QCheckBox::indicator { width: 10px; height: 10px;}")
    panel.layout().addWidget(checkbox2)

    checkbox1 = QtGui.QCheckBox("normal2")
    panel.layout().addWidget(checkbox1)

    panel.show()
    sys.exit(app.exec_())

When I do this, the checks stay the same size, but the box gets smaller. — Erik Aronesty, Apr 08 '19 at 15:11
@ErikAronesty What QStyle are you using ?, the geometrical characteristics depend on QStyle, try with `app.setStyle("fusion")` — eyllanesc, Apr 08 '19 at 15:14

How to resize QCheckBox

1 Answers1