diff options
Diffstat (limited to 'src/widgets/graphicsview/qgraphicslayoutitem.cpp')
| -rw-r--r-- | src/widgets/graphicsview/qgraphicslayoutitem.cpp | 61 |
1 files changed, 23 insertions, 38 deletions
diff --git a/src/widgets/graphicsview/qgraphicslayoutitem.cpp b/src/widgets/graphicsview/qgraphicslayoutitem.cpp index 8694dcb36b..f6aad09810 100644 --- a/src/widgets/graphicsview/qgraphicslayoutitem.cpp +++ b/src/widgets/graphicsview/qgraphicslayoutitem.cpp @@ -1,41 +1,5 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtWidgets module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// 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 #include "qglobal.h" @@ -45,6 +9,7 @@ #include "qgraphicslayoutitem_p.h" #include "qwidget.h" #include "qgraphicswidget.h" +#include "qgraphicsitem_p.h" #include <QtDebug> @@ -826,6 +791,26 @@ void QGraphicsLayoutItem::updateGeometry() } /*! + \since 6.0 + + Returns \c true if this item is empty, i.e whether it has no content and + should not occupy any space. + + The default implementation returns \c true true if the item has been hidden, + unless its \l{sizePolicy()}{size policy} has retainSizeWhenHidden set to \c true + + \sa sizePolicy() +*/ +bool QGraphicsLayoutItem::isEmpty() const +{ + bool isHidden = false; + if (QGraphicsItem *item = graphicsItem()) + isHidden = QGraphicsItemPrivate::get(item)->explicitlyHidden; + + return isHidden && !sizePolicy().retainSizeWhenHidden(); +} + +/*! Returns the parent of this QGraphicsLayoutItem, or \nullptr if there is no parent, or if the parent does not inherit from QGraphicsLayoutItem (QGraphicsLayoutItem is often used through multiple inheritance with |