QTableWidgetItem 的 setBackground 不起作用

Question

from PyQt5 import QtGui, QtWidgets, QtCore

class Test(QtWidgets.QTableWidgetItem):
    def __init__(self):
        super().__init__()
        print("$",self.background()) # note
        try_1 = QtGui.QBrush(QtGui.QColor("orange"))
        print(try_1)
        self.setBackground(try_1)
        print("$",self.background()) # remains same
        try_2 = QtGui.QBrush(QtGui.QColor("orange"))
        print(try_2)
        self.setData(QtCore.Qt.BackgroundRole, try_2)
        print("$",self.background()) # same

Test()

setData() and self.setBackground() doesn't change the QBrush object of QTableWidgetItem .
we can see that self. background() returns the same object

setForeground and setFont works, but it doesn't work for the Background is there another way to set background for the QTableWidgetItem so that i can use it in QHeaderView ?

I have visited lots of similar posts but they didn't have any solutions.

Answer 1

Try to using the following code:

self.table.horizontalHeaderItem(col).setBackground(QtGui.QColor("green"))

"col" refers to the column of your table. Note: set 'Fusion' style in your app.

if __name__ == "__main__":
  app = QtWidgets.QApplication(sys.argv)
  app.setStyle(QtWidgets.QStyleFactory.create('Fusion')) # won't work on windows style.