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<?xml version="1.0" encoding="UTF-8"?>
<!--
// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-->
<typesystem package="PySide6.QtUiTools">
<load-typesystem name="QtWidgets/typesystem_widgets.xml" generate="no"/>
<object-type name="QUiLoader">
<extra-includes>
<include file-name="glue/plugins.h" location="local"/>
</extra-includes>
<inject-code class="native" position="beginning" file="../glue/qtuitools.cpp" snippet="uitools-loadui"/>
<inject-code file="../glue/qtuitools.cpp" snippet="quiloader"/>
<add-function signature="registerCustomWidget(PyObject*@customWidgetType@)" return-type="void">
<inject-documentation format="target" mode="append">
Registers a Python created custom widget to QUiLoader, so it can be recognized when
loading a `.ui` file. The custom widget type is passed via the ``customWidgetType`` argument.
This is needed when you want to override a virtual method of some widget in the interface,
since duck punching will not work with widgets created by QUiLoader based on the contents
of the `.ui` file.
(Remember that `duck punching virtual methods is an invitation for your own demise!
<https://doc.qt.io/qtforpython/shiboken6/wordsofadvice.html#duck-punching-and-virtual-methods>`_)
Let's see an obvious example. If you want to create a new widget it's probable you'll end up
overriding :class:`~PySide6.QtGui.QWidget`'s :meth:`~PySide6.QtGui.QWidget.paintEvent` method.
.. code-block:: python
class Circle(QWidget):
def paintEvent(self, event):
with QPainter(self) as painter:
painter.setPen(self.pen)
painter.setBrush(QBrush(self.color))
painter.drawEllipse(event.rect().center(), 20, 20)
# ...
loader = QUiLoader()
loader.registerCustomWidget(Circle)
circle = loader.load('circle.ui')
circle.show()
# ...
</inject-documentation>
<inject-code class="target" position="beginning" file="../glue/qtuitools.cpp" snippet="quiloader-registercustomwidget"/>
</add-function>
<modify-function signature="createAction(QObject*,const QString&)">
<modify-argument index="return">
<parent index="1" action="add"/>
<define-ownership class="native" owner="c++"/>
<define-ownership class="target" owner="default"/>
</modify-argument>
</modify-function>
<modify-function signature="createActionGroup(QObject*,const QString&)">
<modify-argument index="return">
<parent index="1" action="add"/>
<define-ownership class="native" owner="c++"/>
<define-ownership class="target" owner="default"/>
</modify-argument>
</modify-function>
<modify-function signature="createLayout(const QString&,QObject*,const QString&)">
<modify-argument index="return">
<parent index="2" action="add"/>
<define-ownership class="native" owner="c++"/>
<define-ownership class="target" owner="default"/>
</modify-argument>
</modify-function>
<modify-function signature="createWidget(const QString&,QWidget*,const QString&)">
<modify-argument index="return">
<parent index="2" action="add"/>
<define-ownership class="native" owner="c++"/>
<define-ownership class="target" owner="default"/>
</modify-argument>
</modify-function>
<modify-function signature="load(QIODevice*,QWidget*)">
<modify-argument index="2">
<replace-default-expression with="0"/>
<rename to="parentWidget"/>
</modify-argument>
<modify-argument index="return">
<define-ownership class="target" owner="target"/>
</modify-argument>
<inject-code file="../glue/qtuitools.cpp" snippet="quiloader-load-1"/>
</modify-function>
<!-- Syntax sugar -->
<add-function signature="load(PyPathLike,QWidget*@parentWidget@=nullptr)" return-type="QWidget*">
<modify-argument index="return">
<define-ownership class="target" owner="target"/>
</modify-argument>
<inject-code file="../glue/qtuitools.cpp" snippet="quiloader-load-2"/>
</add-function>
</object-type>
<!--
After the removal of the 'pysideuic' Python module, many users were unable to generate and
load UI classes dynamically.
This function was created to provide an equivalent solution to the 'loadUiType' function from
Riverbank's PyQt.
-->
<add-function signature="loadUiType(const QString& @uifile@)" return-type="PyObject*">
<inject-code file="../glue/qtuitools.cpp" snippet="loaduitype"/>
</add-function>
</typesystem>
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