|
1 /**************************************************************************** |
|
2 ** |
|
3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
|
4 ** All rights reserved. |
|
5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
|
6 ** |
|
7 ** This file is part of the examples of the Qt Toolkit. |
|
8 ** |
|
9 ** $QT_BEGIN_LICENSE:LGPL$ |
|
10 ** No Commercial Usage |
|
11 ** This file contains pre-release code and may not be distributed. |
|
12 ** You may use this file in accordance with the terms and conditions |
|
13 ** contained in the Technology Preview License Agreement accompanying |
|
14 ** this package. |
|
15 ** |
|
16 ** GNU Lesser General Public License Usage |
|
17 ** Alternatively, this file may be used under the terms of the GNU Lesser |
|
18 ** General Public License version 2.1 as published by the Free Software |
|
19 ** Foundation and appearing in the file LICENSE.LGPL included in the |
|
20 ** packaging of this file. Please review the following information to |
|
21 ** ensure the GNU Lesser General Public License version 2.1 requirements |
|
22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
|
23 ** |
|
24 ** In addition, as a special exception, Nokia gives you certain additional |
|
25 ** rights. These rights are described in the Nokia Qt LGPL Exception |
|
26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
|
27 ** |
|
28 ** If you have questions regarding the use of this file, please contact |
|
29 ** Nokia at qt-info@nokia.com. |
|
30 ** |
|
31 ** |
|
32 ** |
|
33 ** |
|
34 ** |
|
35 ** |
|
36 ** |
|
37 ** |
|
38 ** $QT_END_LICENSE$ |
|
39 ** |
|
40 ****************************************************************************/ |
|
41 |
|
42 #include "imageitem.h" |
|
43 |
|
44 //! [0] |
|
45 ImageItem::ImageItem(int id, const QPixmap &pixmap, QGraphicsItem *parent, |
|
46 QGraphicsScene *scene) |
|
47 : QGraphicsPixmapItem(pixmap, parent, scene) |
|
48 { |
|
49 recordId = id; |
|
50 setAcceptsHoverEvents(true); |
|
51 |
|
52 timeLine.setDuration(150); |
|
53 timeLine.setFrameRange(0, 150); |
|
54 |
|
55 connect(&timeLine, SIGNAL(frameChanged(int)), this, SLOT(setFrame(int))); |
|
56 connect(&timeLine, SIGNAL(finished()), this, SLOT(updateItemPosition())); |
|
57 |
|
58 adjust(); |
|
59 } |
|
60 //! [0] |
|
61 |
|
62 //! [1] |
|
63 void ImageItem::hoverEnterEvent(QGraphicsSceneHoverEvent * /*event*/) |
|
64 { |
|
65 timeLine.setDirection(QTimeLine::Forward); |
|
66 |
|
67 if (z != 1.0) { |
|
68 z = 1.0; |
|
69 updateItemPosition(); |
|
70 } |
|
71 |
|
72 if (timeLine.state() == QTimeLine::NotRunning) |
|
73 timeLine.start(); |
|
74 } |
|
75 //! [1] |
|
76 |
|
77 //! [2] |
|
78 void ImageItem::hoverLeaveEvent(QGraphicsSceneHoverEvent * /*event*/) |
|
79 { |
|
80 timeLine.setDirection(QTimeLine::Backward); |
|
81 if (z != 0.0) |
|
82 z = 0.0; |
|
83 |
|
84 if (timeLine.state() == QTimeLine::NotRunning) |
|
85 timeLine.start(); |
|
86 } |
|
87 //! [2] |
|
88 |
|
89 //! [3] |
|
90 void ImageItem::setFrame(int frame) |
|
91 { |
|
92 adjust(); |
|
93 QPointF center = boundingRect().center(); |
|
94 |
|
95 translate(center.x(), center.y()); |
|
96 scale(1 + frame / 330.0, 1 + frame / 330.0); |
|
97 translate(-center.x(), -center.y()); |
|
98 } |
|
99 //! [3] |
|
100 |
|
101 //! [4] |
|
102 void ImageItem::adjust() |
|
103 { |
|
104 QMatrix matrix; |
|
105 matrix.scale(150/ boundingRect().width(), 120/ boundingRect().height()); |
|
106 setMatrix(matrix); |
|
107 } |
|
108 //! [4] |
|
109 |
|
110 //! [5] |
|
111 int ImageItem::id() |
|
112 { |
|
113 return recordId; |
|
114 } |
|
115 //! [5] |
|
116 |
|
117 //! [6] |
|
118 void ImageItem::updateItemPosition() |
|
119 { |
|
120 setZValue(z); |
|
121 } |
|
122 //! [6] |
|
123 |
|
124 |