/src/sourcetree/animationhelper.cpp

  1/* === This file is part of Tomahawk Player - <http://tomahawk-player.org> ===
  2 *
  3 *   Copyright 2010-2011, Christian Muehlhaeuser <muesli@tomahawk-player.org>
  4 *   Copyright 2011, Michael Zanetti <mzanetti@kde.org>
  5 *
  6 *   Tomahawk is free software: you can redistribute it and/or modify
  7 *   it under the terms of the GNU General Public License as published by
  8 *   the Free Software Foundation, either version 3 of the License, or
  9 *   (at your option) any later version.
 10 *
 11 *   Tomahawk is distributed in the hope that it will be useful,
 12 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 13 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 14 *   GNU General Public License for more details.
 15 *
 16 *   You should have received a copy of the GNU General Public License
 17 *   along with Tomahawk. If not, see <http://www.gnu.org/licenses/>.
 18 */
 19
 20#include "AnimationHelper.h"
 21
 22#include <QDebug>
 23
 24AnimationHelper::AnimationHelper( const QModelIndex& index, QObject *parent )
 25    :QObject( parent )
 26    , m_index( index )
 27    , m_fullyExpanded( false )
 28    , m_expandAnimation( 0 )
 29{
 30    m_expandTimer.setSingleShot( true );
 31    m_expandTimer.setInterval( 600 );
 32    connect( &m_expandTimer, SIGNAL( timeout() ), SLOT(expandTimeout() ) );
 33
 34    m_collapseTimer.setSingleShot( true );
 35    m_collapseTimer.setInterval( 600 );
 36    connect( &m_collapseTimer, SIGNAL( timeout() ), SLOT(collapseTimeout() ) );
 37}
 38
 39
 40bool
 41AnimationHelper::initialized() const
 42{
 43    return m_expandAnimation != 0;
 44}
 45
 46
 47void
 48AnimationHelper::initialize( const QSize& startValue, const QSize& endValue, int duration )
 49{
 50    m_size = startValue;
 51    m_targetSize = endValue;
 52    m_startSize = startValue;
 53
 54    m_expandAnimation = new QPropertyAnimation( this, "size", this );
 55    m_expandAnimation->setStartValue( startValue );
 56    m_expandAnimation->setEndValue( endValue );
 57    m_expandAnimation->setDuration( duration );
 58    m_expandAnimation->setEasingCurve( QEasingCurve::OutExpo );
 59    qDebug() << "starting animation" << startValue << endValue << duration;
 60    connect( m_expandAnimation, SIGNAL( finished() ), SLOT( expandAnimationFinished() ) );
 61
 62    m_collapseAnimation= new QPropertyAnimation( this, "size", this );
 63    m_collapseAnimation->setStartValue( endValue );
 64    m_collapseAnimation->setEndValue( startValue );
 65    m_collapseAnimation->setDuration( duration );
 66    m_collapseAnimation->setEasingCurve( QEasingCurve::InExpo );
 67    connect( m_collapseAnimation, SIGNAL( finished() ), SLOT( collapseAnimationFinished() ) );
 68
 69}
 70
 71
 72void
 73AnimationHelper::setSize( const QSize& size )
 74{
 75    m_size = size;
 76    emit sizeChanged();
 77    //qDebug() << "animaton setting size to" << size;
 78}
 79
 80
 81void
 82AnimationHelper::expand()
 83{
 84    m_collapseTimer.stop();
 85    m_expandTimer.start();
 86}
 87
 88
 89void
 90AnimationHelper::collapse( bool immediately )
 91{
 92    if ( m_expandTimer.isActive() )
 93    {
 94        m_expandTimer.stop();
 95        emit finished( m_index );
 96        return;
 97    }
 98
 99    if ( immediately )
100    {
101        m_fullyExpanded = false;
102        m_collapseAnimation->start();
103    }
104    else
105        m_collapseTimer.start();
106}
107
108
109bool
110AnimationHelper::partlyExpanded()
111{
112    return m_size != m_startSize;
113//    return m_fullyExpanded
114//            || ( m_expandAnimation->state() == QPropertyAnimation::Running && m_expandAnimation->currentTime() > 250 )
115//            || ( m_collapseAnimation->state() == QPropertyAnimation::Running && m_collapseAnimation->currentTime() < 100 );
116}
117
118
119bool
120AnimationHelper::fullyExpanded()
121{
122    return m_fullyExpanded;
123}
124
125
126void
127AnimationHelper::expandTimeout()
128{
129    m_expandAnimation->start();
130}
131
132
133void
134AnimationHelper::collapseTimeout()
135{
136    m_fullyExpanded = false;
137    m_collapseAnimation->start();
138}
139
140
141void
142AnimationHelper::expandAnimationFinished()
143{
144    m_fullyExpanded = true;
145}
146
147
148void
149AnimationHelper::collapseAnimationFinished()
150{
151    emit finished( m_index );
152}
153
154
155QSize
156AnimationHelper::originalSize() const
157{
158    return m_startSize;
159}
160
161
162QSize
163AnimationHelper::size() const
164{
165    return m_size;
166}