1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the QtWidgets module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 3 as published by the Free Software 20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the 21 ** packaging of this file. Please review the following information to 22 ** ensure the GNU Lesser General Public License version 3 requirements 23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 24 ** 25 ** GNU General Public License Usage 26 ** Alternatively, this file may be used under the terms of the GNU 27 ** General Public License version 2.0 or (at your option) the GNU General 28 ** Public license version 3 or any later version approved by the KDE Free 29 ** Qt Foundation. The licenses are as published by the Free Software 30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31 ** included in the packaging of this file. Please review the following 32 ** information to ensure the GNU General Public License requirements will 33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34 ** https://www.gnu.org/licenses/gpl-3.0.html. 35 ** 36 ** $QT_END_LICENSE$ 37 ** 38 ****************************************************************************/ 39 40 /*! 41 \class QGraphicsSceneLinearIndex 42 \brief The QGraphicsSceneLinearIndex class provides an implementation of 43 a linear indexing algorithm for discovering items in QGraphicsScene. 44 \since 4.6 45 \ingroup graphicsview-api 46 \internal 47 48 QGraphicsSceneLinearIndex index is default linear implementation to discover items. 49 It basically store all items in a list and return them to the scene. 50 51 \sa QGraphicsScene, QGraphicsView, QGraphicsSceneIndex, QGraphicsSceneBspTreeIndex 52 */ 53 54 #include <private/qgraphicsscenelinearindex_p.h> 55 56 /*! 57 \fn QGraphicsSceneLinearIndex::QGraphicsSceneLinearIndex(QGraphicsScene *scene = 0): 58 59 Construct a linear index for the given \a scene. 60 */ 61 62 /*! 63 \fn QList<QGraphicsItem *> QGraphicsSceneLinearIndex::items(Qt::SortOrder order = Qt::DescendingOrder) const; 64 65 Return all items in the index and sort them using \a order. 66 */ 67 68 69 /*! 70 \fn virtual QList<QGraphicsItem *> QGraphicsSceneLinearIndex::estimateItems(const QRectF &rect, Qt::SortOrder order) const 71 72 Returns an estimation visible items that are either inside or 73 intersect with the specified \a rect and return a list sorted using \a order. 74 */ 75 76 /*! 77 \fn void QGraphicsSceneLinearIndex::clear() 78 \internal 79 Clear the all the BSP index. 80 */ 81 82 /*! 83 \fn virtual void QGraphicsSceneLinearIndex::addItem(QGraphicsItem *item) 84 85 Add the \a item into the index. 86 */ 87 88 /*! 89 \fn virtual void QGraphicsSceneLinearIndex::removeItem(QGraphicsItem *item) 90 91 Add the \a item from the index. 92 */ 93 94 #include "moc_qgraphicsscenelinearindex_p.cpp" 95