1 | /*************************************************************************** |
2 | * Copyright 2010 Stefan Majewsky <majewsky@gmx.net> |
3 | * |
4 | * This program is free software; you can redistribute it and/or |
5 | * modify it under the terms of the GNU General Public |
6 | * License as published by the Free Software Foundation; either |
7 | * version 2 of the License, or (at your option) any later version. |
8 | * |
9 | * This program is distributed in the hope that it will be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
12 | * GNU General Public License for more details. |
13 | * |
14 | * You should have received a copy of the GNU General Public License |
15 | * along with this program; if not, write to the Free Software |
16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
17 | ***************************************************************************/ |
18 | |
19 | #include "utils-animateditem.h" |
20 | |
21 | #include <QPropertyAnimation> |
22 | |
23 | Utils::AnimatedItem::AnimatedItem(QGraphicsItem* parent) |
24 | : QGraphicsObject(parent) |
25 | , m_animationTime(200) |
26 | , m_hideWhenInvisible(false) |
27 | , m_animator(new QPropertyAnimation(this, "correct_opacity" , this)) |
28 | { |
29 | } |
30 | |
31 | int Utils::AnimatedItem::animationTime() const |
32 | { |
33 | return m_animationTime; |
34 | } |
35 | |
36 | void Utils::AnimatedItem::setAnimationTime(int time) |
37 | { |
38 | m_animationTime = time; |
39 | } |
40 | |
41 | bool Utils::AnimatedItem::hideWhenInvisible() const |
42 | { |
43 | return m_hideWhenInvisible; |
44 | } |
45 | |
46 | void Utils::AnimatedItem::setHideWhenInvisible(bool hideWhenInvisible) |
47 | { |
48 | m_hideWhenInvisible = hideWhenInvisible; |
49 | } |
50 | |
51 | void Utils::AnimatedItem::setOpacityAnimated(qreal targetOpacity) |
52 | { |
53 | qreal currentOpacity = opacity(); |
54 | m_animator->setDuration(m_animationTime); |
55 | m_animator->setStartValue(currentOpacity); |
56 | m_animator->setEndValue(targetOpacity); |
57 | m_animator->start(); |
58 | } |
59 | |
60 | void Utils::AnimatedItem::setOpacity(qreal opacity) |
61 | { |
62 | QGraphicsItem::setOpacity(opacity); |
63 | if (m_hideWhenInvisible) |
64 | QGraphicsItem::setVisible(!qFuzzyIsNull(opacity)); |
65 | } |
66 | |
67 | //empty QGraphicsItem reimplementation |
68 | |
69 | QRectF Utils::AnimatedItem::boundingRect() const |
70 | { |
71 | return QRectF(); |
72 | } |
73 | |
74 | void Utils::AnimatedItem::paint(QPainter*, const QStyleOptionGraphicsItem*, QWidget*) |
75 | { |
76 | } |
77 | |
78 | #include "utils-animateditem.moc" |
79 | |