File indexing completed on 2024-05-12 04:19:40

 // vim: set tabstop=4 shiftwidth=4 expandtab:
 /*
 Gwenview: an image viewer
 Copyright 2011 Aurélien Gâteau <agateau@kde.org>
 
 This program is free software; you can redistribute it and/or
 modify it under the terms of the GNU General Public License
 as published by the Free Software Foundation; either version 2
 of the License, or (at your option) any later version.
 
 This program 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 General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 51 Franklin Street, Fifth Floor, Cambridge, MA 02110-1301, USA.
 
 */
 // Self
 #include "loadingindicator.h"
 
 // Local
 #include "gwenview_lib_debug.h"
 
 // KF
 #include <KIconLoader>
 #include <KPixmapSequence>
 
 #include <KPixmapSequenceLoader>
 
 // Qt
 #include <QPainter>
 #include <QTimer>
 
 namespace Gwenview
 {
 struct LoadingIndicatorPrivate {
     LoadingIndicator *q = nullptr;
     KPixmapSequence mSequence;
     int mIndex;
     QTimer *const mTimer;
 
     LoadingIndicatorPrivate(LoadingIndicator *qq)
         : q(qq)
         , mSequence(KPixmapSequenceLoader::load(QStringLiteral("process-working"), 22))
         , mIndex(0)
         , mTimer(new QTimer(qq))
     {
         mTimer->setInterval(100);
         QObject::connect(mTimer, SIGNAL(timeout()), q, SLOT(showNextFrame()));
     }
 };
 
 LoadingIndicator::LoadingIndicator(QGraphicsItem *parent)
     : QGraphicsWidget(parent)
     , d(new LoadingIndicatorPrivate(this))
 {
 }
 
 LoadingIndicator::~LoadingIndicator()
 {
     delete d;
 }
 
 QRectF LoadingIndicator::boundingRect() const
 {
     return QRectF(QPointF(0, 0), d->mSequence.frameSize());
 }
 
 void LoadingIndicator::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *)
 {
     painter->drawPixmap(0, 0, d->mSequence.frameAt(d->mIndex));
 }
 
 void LoadingIndicator::showNextFrame()
 {
     if (d->mSequence.frameCount() > 0) {
         d->mIndex = (d->mIndex + 1) % d->mSequence.frameCount();
         update();
     }
 }
 
 QVariant LoadingIndicator::itemChange(GraphicsItemChange change, const QVariant &value)
 {
     if (change == QGraphicsItem::ItemVisibleHasChanged) {
         if (value.toBool()) {
             d->mTimer->start();
         } else {
             d->mTimer->stop();
         }
     }
     return QGraphicsWidget::itemChange(change, value);
 }
 
 } // namespace
 
 #include "moc_loadingindicator.cpp"