a9c7cc7b04
closes: #1374 . Use SPDX short-form identifiers instead of lengthy copyright header to document per-file license and copyright. This commit updates all files under src/ directory where applicable as well as org.flameshot.Flameshot.metainfo.xml.
94 lines
1.9 KiB
C++
94 lines
1.9 KiB
C++
// SPDX-License-Identifier: GPL-3.0-or-later
|
|
// SPDX-FileCopyrightText: 2017-2019 Alejandro Sirgo Rica & Contributors
|
|
|
|
#include "loadspinner.h"
|
|
#include <QApplication>
|
|
#include <QPaintEvent>
|
|
#include <QPainter>
|
|
#include <QTimer>
|
|
|
|
#define OFFSET 5
|
|
|
|
LoadSpinner::LoadSpinner(QWidget* parent)
|
|
: QWidget(parent)
|
|
, m_startAngle(0)
|
|
, m_span(0)
|
|
, m_growing(true)
|
|
{
|
|
setAttribute(Qt::WA_TranslucentBackground);
|
|
const int size = QApplication::fontMetrics().height() * 8;
|
|
setFixedSize(size, size);
|
|
updateFrame();
|
|
// init timer
|
|
m_timer = new QTimer(this);
|
|
connect(m_timer, &QTimer::timeout, this, &LoadSpinner::rotate);
|
|
m_timer->setInterval(30);
|
|
}
|
|
|
|
void LoadSpinner::setColor(const QColor& c)
|
|
{
|
|
m_color = c;
|
|
}
|
|
|
|
void LoadSpinner::setWidth(int w)
|
|
{
|
|
setFixedSize(w, w);
|
|
updateFrame();
|
|
}
|
|
|
|
void LoadSpinner::setHeight(int h)
|
|
{
|
|
setFixedSize(h, h);
|
|
updateFrame();
|
|
}
|
|
|
|
void LoadSpinner::start()
|
|
{
|
|
m_timer->start();
|
|
}
|
|
|
|
void LoadSpinner::stop()
|
|
{
|
|
m_timer->stop();
|
|
}
|
|
|
|
void LoadSpinner::paintEvent(QPaintEvent*)
|
|
{
|
|
QPainter painter(this);
|
|
painter.setRenderHint(QPainter::Antialiasing, true);
|
|
auto pen = QPen(m_color);
|
|
|
|
pen.setWidth(height() / 10);
|
|
painter.setPen(pen);
|
|
painter.setOpacity(0.2);
|
|
painter.drawArc(m_frame, 0, 5760);
|
|
painter.setOpacity(1.0);
|
|
painter.drawArc(m_frame, (m_startAngle * 16), (m_span * 16));
|
|
}
|
|
|
|
void LoadSpinner::rotate()
|
|
{
|
|
const int advance = 3;
|
|
const int grow = 8;
|
|
if (m_growing) {
|
|
m_startAngle = (m_startAngle + advance) % 360;
|
|
m_span += grow;
|
|
if (m_span > 260) {
|
|
m_growing = false;
|
|
}
|
|
} else {
|
|
m_startAngle = (m_startAngle + grow) % 360;
|
|
m_span = m_span + advance - grow;
|
|
if (m_span < 10) {
|
|
m_growing = true;
|
|
}
|
|
}
|
|
update();
|
|
}
|
|
|
|
void LoadSpinner::updateFrame()
|
|
{
|
|
m_frame =
|
|
QRect(OFFSET, OFFSET, width() - OFFSET * 2, height() - OFFSET * 2);
|
|
}
|