I got curious about this, had a peek at the docs and found this. The view does not take ownership of the model unless it is the model’s parent object because the model may be shared between many different views.
In your case, the model remains parent-less, which means it does not automatically get cleaned up. Having said that, it’s possible, even likely, that Python’s garbage collection takes care of it, since it will no longer be referenced anywhere. You can use the Python module gc to find out. - https://pymotw.com/2/gc/ Also from the docs, it says.. If both the old model and the old selection model do not have parents, or if their parents are long-lived objects, it may be preferable to call their deleteLater() functions to explicitly delete them. So if you’d rather not find out explicitly, deleting it yourself isn’t a terrible idea. - https://doc.qt.io/qt-5/qabstractitemview.html#setModel On 9 October 2016 at 13:42, johan Borgström <[email protected]> wrote: > Hi, > > I am using a tabwidget and on each tab I am creating a listview with a > standard model. My question is how do I make sure when I delete the tabs > that everything gets deleted, including the model. As far as I understand > if you delete the parent widget the children will also be deleted. > > Below you will find a simplified version of what I am creating. Should I > "manually" deleting the model? > > Thankful for all comments and feedback! > > BR, > Johan > > import sys > from PySide2 import QtGui, QtCore, QtWidgets > from maya import OpenMayaUI as omui > from shiboken2 import wrapInstance > from functools import partial > > > class TabWidget(QtWidgets.QWidget): > > def __init__(self, parent=None): > super(TabWidget, self).__init__(parent) > > self.setWindowFlags(QtCore.Qt.Tool) > self.setGeometry(50, 200, 300, 300) > self.setWindowTitle('Tabwidget') > > vbox = QtWidgets.QVBoxLayout(self) > > self.tab_widget = QtWidgets.QTabWidget() > vbox.addWidget(self.tab_widget) > > label_list = ['A', 'B', 'C'] > > # add tabs > add_tabs_button = QtWidgets.QPushButton('Add Tabs') > add_tabs_button.clicked.connect(partial(self.add_tabs, > label_list)) > vbox.addWidget(add_tabs_button) > > # remove tabs > remove_tabs_button = QtWidgets.QPushButton('Remove Tabs') > remove_tabs_button.clicked.connect(self.remove_tabs) > vbox.addWidget(remove_tabs_button) > > def remove_tabs(self): > #self.tab_widget.clear() > for i in range(self.tab_widget.count()): > #print self.tab_widget.removeTab(0) > self.tab_widget.widget(i).deleteLater() > > def add_tabs(self, label_list): > > for label in label_list: > > widget = QtWidgets.QWidget() > self.tab_widget.addTab(widget, label) > vbox = QtWidgets.QVBoxLayout(widget) > > model = QtGui.QStandardItemModel() > > for i in range(5): > model.appendRow(QtGui.QStandardItem('{} {}'.format(label, > i))) > > list_view = QtWidgets.QListView() > list_view.setModel(model) > vbox.addWidget(list_view) > > > def show(): > mayaMainWindow = wrapInstance(long(omui.MQtUtil.mainWindow()), > QtWidgets.QWidget) > win = TabWidget(parent=mayaMainWindow) > win.show() > return win > > > -- > You received this message because you are subscribed to the Google Groups > "Python Programming for Autodesk Maya" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit https://groups.google.com/d/ > msgid/python_inside_maya/c75a5e80-6f62-4b91-b38b- > d8b1dd8c8c0a%40googlegroups.com > <https://groups.google.com/d/msgid/python_inside_maya/c75a5e80-6f62-4b91-b38b-d8b1dd8c8c0a%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- *Marcus Ottosson* [email protected] -- You received this message because you are subscribed to the Google Groups "Python Programming for Autodesk Maya" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/python_inside_maya/CAFRtmOBftqKae3o8Nsi-ftWjU7nvTcZ3oBRzgXD3fJU%3Dd_de3g%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
