mirror of
https://github.com/fergalmoran/flameshot.git
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277eb2f437
* Replace foreach * Replace QRegExp with QRegularExpression * Replace QApplication::fontMetrics * Replace QColor::isValidColor * Replace canConvert(QVariant) * Replace QString::midRef and QCharRef * Add TODO for replacing QDesktopWidget for Qt 6 * Add TODO for replacing QTextCodec for Qt 6 * Fix QWidget::enterEvent for Qt 6 * qRegisterMetaTypeStreamOperators done automatically in Qt 6 * Fix QWidget::mapToGlobal for Qt 6 * Migrate QDesktopWidget replacement from old qt6 branch * Drop Qt 5 support
93 lines
1.9 KiB
C++
93 lines
1.9 KiB
C++
// SPDX-License-Identifier: GPL-3.0-or-later
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// SPDX-FileCopyrightText: 2017-2019 Alejandro Sirgo Rica & Contributors
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#include "loadspinner.h"
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#include <QApplication>
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#include <QPaintEvent>
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#include <QPainter>
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#include <QTimer>
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#define OFFSET 5
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LoadSpinner::LoadSpinner(QWidget* parent)
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: QWidget(parent)
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, m_span(0)
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, m_growing(true)
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{
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setAttribute(Qt::WA_TranslucentBackground);
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const int size = QFontMetrics(qApp->font()).height() * 8;
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setFixedSize(size, size);
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updateFrame();
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// init timer
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m_timer = new QTimer(this);
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connect(m_timer, &QTimer::timeout, this, &LoadSpinner::rotate);
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m_timer->setInterval(30);
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}
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void LoadSpinner::setColor(const QColor& c)
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{
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m_color = c;
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}
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void LoadSpinner::setWidth(int w)
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{
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setFixedSize(w, w);
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updateFrame();
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}
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void LoadSpinner::setHeight(int h)
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{
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setFixedSize(h, h);
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updateFrame();
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}
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void LoadSpinner::start()
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{
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m_timer->start();
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}
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void LoadSpinner::stop()
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{
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m_timer->stop();
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}
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void LoadSpinner::paintEvent(QPaintEvent*)
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{
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QPainter painter(this);
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painter.setRenderHint(QPainter::Antialiasing, true);
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auto pen = QPen(m_color);
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pen.setWidth(height() / 10);
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painter.setPen(pen);
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painter.setOpacity(0.2);
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painter.drawArc(m_frame, 0, 5760);
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painter.setOpacity(1.0);
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painter.drawArc(m_frame, (m_startAngle * 16), (m_span * 16));
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}
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void LoadSpinner::rotate()
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{
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const int advance = 3;
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const int grow = 8;
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if (m_growing) {
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m_startAngle = (m_startAngle + advance) % 360;
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m_span += grow;
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if (m_span > 260) {
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m_growing = false;
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}
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} else {
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m_startAngle = (m_startAngle + grow) % 360;
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m_span = m_span + advance - grow;
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if (m_span < 10) {
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m_growing = true;
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}
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}
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update();
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}
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void LoadSpinner::updateFrame()
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{
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m_frame =
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QRect(OFFSET, OFFSET, width() - OFFSET * 2, height() - OFFSET * 2);
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}
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