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 | #ifndef UTILS_ANIMATEDITEM_H |
20 | #define UTILS_ANIMATEDITEM_H |
21 | |
22 | #include <QGraphicsObject> |
23 | class QPropertyAnimation; |
24 | |
25 | namespace Utils |
26 | { |
27 | /** |
28 | * \class AnimatedItem |
29 | * This QGraphicsItem has a simple interface for animated opacity changes. |
30 | */ |
31 | class AnimatedItem : public QGraphicsObject |
32 | { |
33 | Q_OBJECT |
34 | Q_PROPERTY(qreal correct_opacity READ opacity WRITE setOpacity) //I'm talking of AnimatedItem::setOpacity, not QGraphicsItem::setOpacity! |
35 | public: |
36 | AnimatedItem(QGraphicsItem* parent = 0); |
37 | |
38 | ///Returns the duration of opacity animations. |
39 | int animationTime() const; |
40 | ///\note This won't have an effect on running animations. |
41 | void setAnimationTime(int time); |
42 | ///Returns whether the object's visibility will be set to false when the opacity is reduced to 0. |
43 | bool hideWhenInvisible() const; |
44 | void setHideWhenInvisible(bool hideWhenInvisible); |
45 | void setOpacityAnimated(qreal opacity); |
46 | ///\warning Always use this instead of QGraphicsItem::setOpacity for direct opacity adjustments. |
47 | void setOpacity(qreal opacity); |
48 | |
49 | virtual QRectF boundingRect() const; |
50 | virtual void paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget = 0); |
51 | private: |
52 | int m_animationTime; |
53 | bool m_hideWhenInvisible; |
54 | QPropertyAnimation* m_animator; |
55 | }; |
56 | } |
57 | |
58 | #endif // KOLF_OVERLAY_P_H |
59 | |