import sys

from PySide6.QtGui import *
from PySide6.QtWidgets import *

app = QApplication()


class MyProxyStyle(QProxyStyle):
    def __init__(self):
        QProxyStyle.__init__(self)
        self.setBaseStyle(QApplication.style())


class emptyStyle(QProxyStyle):
    def __init__(self):
        QProxyStyle.__init__(self)


w = QWidget()
w.show()
model = QStandardItemModel()
for inx in range(0, 10):
    item = QStandardItem("Item_" + str(inx))
    model.appendRow(item)
lay = QGridLayout()
w.setLayout(lay)

global viewNormal
global viewInherited
global viewDefault


def addStandardView():
    global viewNormal
    viewNormal = QTreeView()
    viewNormal.setModel(model)
    lay.addWidget(viewNormal)


def addInherited():
    global viewInherited
    viewInherited = QTreeView()
    viewInherited.setStyle(MyProxyStyle())
    viewInherited.setModel(model)
    lay.addWidget(viewInherited)


def addDefault():
    global viewDefault
    viewDefault = QTreeView()
    viewDefault.setStyle(emptyStyle())
    viewDefault.setModel(model)
    lay.addWidget(viewDefault)

def addStandardView_delete():
    global viewNormal
    viewNormal.deleteLater()

def addInherited_delete():
    global viewInherited
    viewInherited.deleteLater()

def addDefault_delete():
    global viewDefault
    viewDefault.deleteLater()


btn_addNormalView = QPushButton("Add Normal")
btn_addStyleInherited = QPushButton("Add Inherited Style View")
btn_addStyleDefault = QPushButton("Add default style view")

btn_addNormalView_delete = QPushButton("delete Normal")
btn_addStyleInherited_delete = QPushButton("delete Inherited Style View")
btn_addStyleDefault_delete = QPushButton("delete default style view")

lay.addWidget(btn_addNormalView)
lay.addWidget(btn_addNormalView_delete)

lay.addWidget(btn_addStyleInherited)
lay.addWidget(btn_addStyleInherited_delete)

lay.addWidget(btn_addStyleDefault)
lay.addWidget(btn_addStyleDefault_delete)

btn_addNormalView.released.connect(addStandardView)
btn_addNormalView_delete.released.connect(addStandardView_delete)
btn_addStyleInherited.released.connect(addInherited)
btn_addStyleInherited_delete.released.connect(addInherited_delete)
btn_addStyleDefault.released.connect(addDefault)
btn_addStyleDefault_delete.released.connect(addDefault_delete)

darkPalette = QPalette()
darkPalette.setColor(QPalette.Highlight, QColor(175, 100, 0))

fusion = QStyleFactory.create("fusion")
app.setStyle(fusion)
app.setPalette(darkPalette)
app.setStyleSheet("""QWidget {background-color: rgb(150,150,250);}""")
sys.exit(app.exec_())