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/*
Copyright (C) 2010 Klarälvdalens Datakonsult AB,
a KDAB Group company, info@kdab.net,
author Stephen Kelly <stephen@kdab.com>
This library is free software; you can redistribute it and/or modify it
under the terms of the GNU Library General Public License as published by
the Free Software Foundation; either version 2 of the License, or (at your
option) any later version.
This library is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
*/
#include "progressspinnerdelegate_p.h"
#include "entitytreemodel.h"
#include <QTimerEvent>
#include <QAbstractItemView>
using namespace Akonadi;
DelegateAnimator::DelegateAnimator(QAbstractItemView *view)
: QObject(view), m_view(view), m_timerId(-1)
{
m_pixmapSequence = KPixmapSequence(QLatin1String("process-working"), 22);
}
void DelegateAnimator::timerEvent(QTimerEvent* event)
{
if (!(event->timerId() == m_timerId && m_view))
return QObject::timerEvent(event);
QRegion region;
foreach (const Animation &animation, m_animations)
{
// This repaints the entire delegate.
// TODO: See if there's a way to repaint only part of it.
animation.animate();
region += m_view->visualRect(animation.index);
}
m_view->viewport()->update(region);
}
QPixmap DelegateAnimator::sequenceFrame(const QModelIndex& index)
{
foreach(const Animation &animation, m_animations)
{
if (animation.index == index)
{
return m_pixmapSequence.frameAt(animation.frame);
}
}
return QPixmap();
}
ProgressSpinnerDelegate::ProgressSpinnerDelegate(DelegateAnimator *animator, QObject* parent)
: QStyledItemDelegate(parent), m_animator(animator)
{
}
void ProgressSpinnerDelegate::initStyleOption(QStyleOptionViewItem* option, const QModelIndex& index) const
{
QStyledItemDelegate::initStyleOption(option, index);
const Akonadi::Collection collection = index.data(Akonadi::EntityTreeModel::CollectionRole).value<Akonadi::Collection>();
if (!collection.isValid())
{
m_animator->pop(index);
return;
}
if (index.data(Akonadi::EntityTreeModel::FetchStateRole).toInt() != Akonadi::EntityTreeModel::FetchingState)
{
m_animator->pop(index);
return;
}
m_animator->push(index);
if (QStyleOptionViewItemV4 *v4 = qstyleoption_cast<QStyleOptionViewItemV4 *>(option)) {
v4->icon = m_animator->sequenceFrame(index);
}
}
uint Akonadi::qHash(Akonadi::DelegateAnimator::Animation anim)
{
return qHash(anim.index);
}
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