blob: 1c898bc98fd946eff7968ffa834c2641e89a3ee7 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
#include "qgraphicsscenelinearindex_p.h"
/*!
\class QGraphicsSceneLinearIndex
\brief The QGraphicsSceneLinearIndex class provides an implementation of
a linear indexing algorithm for discovering items in QGraphicsScene.
\since 4.6
\ingroup multimedia
\ingroup graphicsview-api
\mainclass
QGraphicsSceneLinearIndex index is default linear implementation to discover items.
It basically store all items in a list and return them to the scene.
\sa QGraphicsScene, QGraphicsView, QGraphicsSceneIndex, QGraphicsSceneBspTreeIndex
*/
/*!
\fn QGraphicsSceneLinearIndex::QGraphicsSceneLinearIndex(QGraphicsScene *scene = 0):
Construct a linear index for the given \a scene.
*/
/*!
\fn QList<QGraphicsItem *> QGraphicsSceneLinearIndex::items(Qt::SortOrder order = Qt::AscendingOrder) const;
Return all items in the index and sort them using \a order.
*/
/*!
\fn virtual QList<QGraphicsItem *> QGraphicsSceneLinearIndex::estimateItems(const QRectF &rect, Qt::SortOrder order, const QTransform &deviceTransform) const;
Returns an estimation visible items that are either inside or
intersect with the specified \a rect and return a list sorted using \a order.
\a deviceTransform is the transformation apply to the view.
*/
/*!
\fn QRectF QGraphicsSceneLinearIndex::indexedRect() const;
\reimp
Return the rect indexed by the the index.
*/
/*!
\fn void QGraphicsSceneLinearIndex::sceneRectChanged(const QRectF &rect);
\reimp
This method react to the \a rect change of the scene.
*/
/*!
\fn void QGraphicsSceneLinearIndex::clear();
\reimp
Clear the all the BSP index.
*/
/*!
\fn virtual void QGraphicsSceneLinearIndex::addItem(QGraphicsItem *item);
Add the \a item into the index.
*/
/*!
\fn virtual void QGraphicsSceneLinearIndex::removeItem(QGraphicsItem *item);
Add the \a item from the index.
*/
|
