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96 lines
2.3 KiB
C++
96 lines
2.3 KiB
C++
// vim: set tabstop=4 shiftwidth=4 expandtab:
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/*
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Gwenview: an image viewer
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Copyright 2011 Aurélien Gâteau <agateau@kde.org>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Cambridge, MA 02110-1301, USA.
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*/
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// Self
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#include "moc_loadingindicator.cpp"
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// Local
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// KDE
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#include <KDebug>
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#include <KPixmapSequence>
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// Qt
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#include <QPainter>
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#include <QTimer>
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namespace Gwenview
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{
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struct LoadingIndicatorPrivate
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{
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LoadingIndicator* q;
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KPixmapSequence mSequence;
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int mIndex;
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QTimer* mTimer;
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LoadingIndicatorPrivate(LoadingIndicator* qq)
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: q(qq)
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, mSequence("process-working", 22)
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, mIndex(0)
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, mTimer(new QTimer(qq))
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{
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mTimer->setInterval(100);
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QObject::connect(mTimer, SIGNAL(timeout()), q, SLOT(showNextFrame()));
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}
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};
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LoadingIndicator::LoadingIndicator(QGraphicsItem* parent)
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: QGraphicsWidget(parent)
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, d(new LoadingIndicatorPrivate(this))
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{
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}
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LoadingIndicator::~LoadingIndicator()
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{
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delete d;
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}
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QRectF LoadingIndicator::boundingRect() const
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{
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return QRectF(QPointF(0, 0), d->mSequence.frameSize());
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}
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void LoadingIndicator::paint(QPainter* painter, const QStyleOptionGraphicsItem*, QWidget*)
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{
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painter->drawPixmap(0, 0, d->mSequence.frameAt(d->mIndex));
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}
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void LoadingIndicator::showNextFrame()
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{
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if (d->mSequence.frameCount() > 0) {
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d->mIndex = (d->mIndex + 1) % d->mSequence.frameCount();
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update();
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}
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}
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QVariant LoadingIndicator::itemChange(GraphicsItemChange change, const QVariant& value)
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{
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if (change == QGraphicsItem::ItemVisibleHasChanged) {
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if (value.toBool()) {
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d->mTimer->start();
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} else {
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d->mTimer->stop();
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}
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}
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return QGraphicsWidget::itemChange(change, value);
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}
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} // namespace
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