squawk/ui/utils/progress.cpp

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2019-10-30 13:47:21 +00:00
/*
* Squawk messenger.
* Copyright (C) 2019 Yury Gubich <blue@macaw.me>
*
* 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 "progress.h"
Progress::Progress(quint16 p_size, QWidget* parent):
QWidget(parent),
pixmap(new QGraphicsPixmapItem(Shared::icon("view-refresh", true).pixmap(p_size))),
scene(),
label(&scene),
progress(false),
animation(),
size(p_size)
{
scene.addItem(pixmap);
label.setMaximumSize(size, size);
label.setMinimumSize(size, size);
label.setSceneRect(0, 0, size, size);
label.setFrameStyle(0);
label.setContentsMargins(0, 0, 0, 0);
label.setInteractive(false);
label.setStyleSheet("background: transparent");
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pixmap->setTransformOriginPoint(size / 2, size / 2);
pixmap->setTransformationMode(Qt::SmoothTransformation);
pixmap->setOffset(0, 0);
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animation.setDuration(500);
animation.setStartValue(0.0f);
animation.setEndValue(180.0f);
animation.setLoopCount(-1);
connect(&animation, &QVariantAnimation::valueChanged, this, &Progress::onValueChanged);
QGridLayout* layout = new QGridLayout();
setLayout(layout);
layout->setMargin(0);
layout->setVerticalSpacing(0);
layout->setHorizontalSpacing(0);
setContentsMargins(0, 0, 0, 0);
layout->addWidget(&label, 0, 0, 1, 1);
label.hide();
}
Progress::~Progress()
{
}
void Progress::onValueChanged(const QVariant& value)
{
pixmap->setRotation(value.toReal());
}
void Progress::start()
{
if (!progress) {
label.show();
animation.start();
progress = true;
}
}
void Progress::stop()
{
if (progress) {
label.hide();
animation.stop();
progress = false;
}
}