[FIXED] Qt multiple widget in QHeader of TreeWidget

Issue

I want to add multiple buttons and a label inside the header of a tree widget.
This is what I want : wireframe. This is what I tried so far :

from PySide2 import QtWidgets, QtCore
import sys


class Header(QtWidgets.QHeaderView):
    def __init__(self, orientation, parent=None):
        super(Header, self).__init__(orientation, parent)

        self.layout_header = QtWidgets.QHBoxLayout()
        self.button = QtWidgets.QPushButton('Button text')
        self.button_2 = QtWidgets.QPushButton('Button text')
        self.label = QtWidgets.QLabel('label')
        self.layout_header.addWidget(self.button)
        self.layout_header.addWidget(self.button_2)
        self.layout_header.addWidget(self.label)
        self.setLayout(self.layout_header)


class TreeWidget(QtWidgets.QTreeWidget):
    def __init__(self, parent=None):
        super(TreeWidget, self).__init__(parent)
        item0 = QtWidgets.QTreeWidgetItem(["Item 0"])
        item1 = QtWidgets.QTreeWidgetItem(["Item 1"])
        self.addTopLevelItem(item0)
        self.addTopLevelItem(item1)
        self.createHeader()

    def createHeader(self):
        header = Header(QtCore.Qt.Horizontal, self)
        self.setHeader(header)


if __name__ == '__main__':
    app = QtWidgets.QApplication(sys.argv)
    w = TreeWidget()
    w.show()
    sys.exit(app.exec_())

I don't have any errors, but it doesn't work as well. Is it even possible to do that ?
Thank you

Solution

As musicamante said, I needed to declare a minimum height in order to see it.
answer :

from PySide6 import QtWidgets, QtCore
import sys


class Header(QtWidgets.QHeaderView):
    def __init__(self, orientation, parent=None):
        super(Header, self).__init__(orientation, parent)

        self.layout_header = QtWidgets.QHBoxLayout()
        self.button = QtWidgets.QPushButton('Button text')
        self.button_2 = QtWidgets.QPushButton('Button text')
        self.label = QtWidgets.QLabel('label')
        self.layout_header.addWidget(self.button)
        self.layout_header.addWidget(self.button_2)
        self.layout_header.addWidget(self.label)
        self.setMinimumHeight(50)
        self.setLayout(self.layout_header)


class TreeWidget(QtWidgets.QTreeWidget):
    def __init__(self, parent=None):
        super(TreeWidget, self).__init__(parent)
        item0 = QtWidgets.QTreeWidgetItem(["Item 0"])
        item1 = QtWidgets.QTreeWidgetItem(["Item 1"])
        self.addTopLevelItem(item0)
        self.addTopLevelItem(item1)
        self.createHeader()

    def createHeader(self):
        header = Header(QtCore.Qt.Horizontal, self)
        self.setHeader(header)


if __name__ == '__main__':
    app = QtWidgets.QApplication(sys.argv)
    w = TreeWidget()
    w.show()
    sys.exit(app.exec_())

Answered By - isaac