File indexing completed on 2025-02-02 07:28:26
0001 /*************************************************************************** 0002 * Copyright 2010 Stefan Majewsky <majewsky@gmx.net> 0003 * 0004 * This program is free software; you can redistribute it and/or 0005 * modify it under the terms of the GNU General Public 0006 * License as published by the Free Software Foundation; either 0007 * version 2 of the License, or (at your option) any later version. 0008 * 0009 * This program is distributed in the hope that it will be useful, 0010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 0011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 0012 * GNU General Public License for more details. 0013 * 0014 * You should have received a copy of the GNU General Public License 0015 * along with this program; if not, write to the Free Software 0016 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 0017 ***************************************************************************/ 0018 0019 #include "utils-animateditem.h" 0020 0021 #include <QPropertyAnimation> 0022 0023 Utils::AnimatedItem::AnimatedItem(QGraphicsItem* parent) 0024 : QGraphicsObject(parent) 0025 , m_animationTime(200) 0026 , m_hideWhenInvisible(false) 0027 , m_animator(new QPropertyAnimation(this, "correct_opacity", this)) 0028 { 0029 } 0030 0031 int Utils::AnimatedItem::animationTime() const 0032 { 0033 return m_animationTime; 0034 } 0035 0036 void Utils::AnimatedItem::setAnimationTime(int time) 0037 { 0038 m_animationTime = time; 0039 } 0040 0041 bool Utils::AnimatedItem::hideWhenInvisible() const 0042 { 0043 return m_hideWhenInvisible; 0044 } 0045 0046 void Utils::AnimatedItem::setHideWhenInvisible(bool hideWhenInvisible) 0047 { 0048 m_hideWhenInvisible = hideWhenInvisible; 0049 } 0050 0051 void Utils::AnimatedItem::setOpacityAnimated(qreal targetOpacity) 0052 { 0053 qreal currentOpacity = opacity(); 0054 m_animator->setDuration(m_animationTime); 0055 m_animator->setStartValue(currentOpacity); 0056 m_animator->setEndValue(targetOpacity); 0057 m_animator->start(); 0058 } 0059 0060 void Utils::AnimatedItem::setOpacity(qreal opacity) 0061 { 0062 QGraphicsItem::setOpacity(opacity); 0063 if (m_hideWhenInvisible) 0064 QGraphicsItem::setVisible(!qFuzzyIsNull(opacity)); 0065 } 0066 0067 //empty QGraphicsItem reimplementation 0068 0069 QRectF Utils::AnimatedItem::boundingRect() const 0070 { 0071 return QRectF(); 0072 } 0073 0074 void Utils::AnimatedItem::paint(QPainter*, const QStyleOptionGraphicsItem*, QWidget*) 0075 { 0076 } 0077 0078 #include "moc_utils-animateditem.cpp"