def base64_from_icon_obj(self, icon_obj, width, height):
"""Convert icon object to base64 encoding."""
image = QImage(icon_obj.pixmap(width, height).toImage())
byte_array = QByteArray()
buffer = QBuffer(byte_array)
image.save(buffer, "PNG")
return byte_array.toBase64().data().decode()
def qbytearray_to_str(qbyte: QByteArray) -> str:
"""Convert a window state to a string.
Used for restoring the state of the main window.
Parameters
----------
qbyte : QByteArray
State array.
"""
return QBYTE_FLAG + qbyte.toBase64().data().decode()