source: trunk/src/gui/graphicsview/qgraphicsscenelinearindex.cpp@ 755

Last change on this file since 755 was 651, checked in by Dmitry A. Kuminov, 15 years ago

trunk: Merged in qt 4.6.2 sources.

  • Property svn:eol-style set to native
File size: 3.4 KB
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1/****************************************************************************
2**
3** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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41
42/*!
43 \class QGraphicsSceneLinearIndex
44 \brief The QGraphicsSceneLinearIndex class provides an implementation of
45 a linear indexing algorithm for discovering items in QGraphicsScene.
46 \since 4.6
47 \ingroup graphicsview-api
48 \internal
49
50 QGraphicsSceneLinearIndex index is default linear implementation to discover items.
51 It basically store all items in a list and return them to the scene.
52
53 \sa QGraphicsScene, QGraphicsView, QGraphicsSceneIndex, QGraphicsSceneBspTreeIndex
54*/
55
56#include <private/qgraphicsscenelinearindex_p.h>
57
58/*!
59 \fn QGraphicsSceneLinearIndex::QGraphicsSceneLinearIndex(QGraphicsScene *scene = 0):
60
61 Construct a linear index for the given \a scene.
62*/
63
64/*!
65 \fn QList<QGraphicsItem *> QGraphicsSceneLinearIndex::items(Qt::SortOrder order = Qt::DescendingOrder) const;
66
67 Return all items in the index and sort them using \a order.
68*/
69
70
71/*!
72 \fn virtual QList<QGraphicsItem *> QGraphicsSceneLinearIndex::estimateItems(const QRectF &rect, Qt::SortOrder order) const
73
74 Returns an estimation visible items that are either inside or
75 intersect with the specified \a rect and return a list sorted using \a order.
76*/
77
78/*!
79 \fn void QGraphicsSceneLinearIndex::clear()
80 \internal
81 Clear the all the BSP index.
82*/
83
84/*!
85 \fn virtual void QGraphicsSceneLinearIndex::addItem(QGraphicsItem *item)
86
87 Add the \a item into the index.
88*/
89
90/*!
91 \fn virtual void QGraphicsSceneLinearIndex::removeItem(QGraphicsItem *item)
92
93 Add the \a item from the index.
94*/
95
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