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falkonOfficial/src/plugins/VerticalTabs/loadinganimator.cpp

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2018-02-02 11:28:29 +01:00
/* ============================================================
* VerticalTabs plugin for Falkon
* Copyright (C) 2018 David Rosca <nowrep@gmail.com>
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
* ============================================================ */
#include "loadinganimator.h"
#include "tabicon.h"
#include "tabmodel.h"
#include <QTimer>
class LoadingAnimation : public QObject
{
public:
explicit LoadingAnimation(LoadingAnimator *animator)
: QObject(animator)
, m_animator(animator)
{
QTimer *timer = new QTimer(this);
timer->setInterval(TabIcon::data()->animationInterval);
connect(timer, &QTimer::timeout, this, [this]() {
m_currentFrame = (m_currentFrame + 1) % TabIcon::data()->framesCount;
m_animator->updatePixmap(this);
});
timer->start();
}
QPixmap pixmap() const
{
const QPixmap p = TabIcon::data()->animationPixmap;
const int size = 16;
const int pixmapSize = qRound(size * p.devicePixelRatioF());
return p.copy(m_currentFrame * pixmapSize, 0, pixmapSize, pixmapSize);
}
private:
int m_currentFrame = 0;
LoadingAnimator *m_animator;
};
LoadingAnimator::LoadingAnimator(QObject *parent)
: QObject(parent)
{
}
QPixmap LoadingAnimator::pixmap(const QModelIndex &index)
{
LoadingAnimation *animation = m_animations.value(index);
if (!animation) {
animation = new LoadingAnimation(this);
m_indexes[animation] = index;
m_animations[index] = animation;
}
return animation->pixmap();
}
void LoadingAnimator::updatePixmap(LoadingAnimation *animation)
{
const QModelIndex index = m_indexes.value(animation);
if (!index.isValid() || !index.data(TabModel::LoadingRole).toBool()) {
animation->deleteLater();
m_indexes.remove(animation);
m_animations.remove(index);
} else {
emit updateIndex(index);
}
}