File indexing completed on 2024-04-21 03:42:34

 /*
 
     This file is part of QProgressIndicator,
     an open-source recent files menu widget
 
     SPDX-FileCopyrightText: 2009-2010 Morgan Leborgne
     SPDX-License-Identifier: LGPL-3.0-or-later
 */
 
 #include "QProgressIndicator.h"
 
 #include <QPainter>
 
 QProgressIndicator::QProgressIndicator(QWidget *parent)
     : QWidget(parent)
 {
     setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
     setFocusPolicy(Qt::NoFocus);
 }
 
 bool QProgressIndicator::isAnimated() const
 {
     return (m_timerId != -1);
 }
 
 void QProgressIndicator::setDisplayedWhenStopped(bool state)
 {
     m_displayedWhenStopped = state;
 
     update();
 }
 
 bool QProgressIndicator::isDisplayedWhenStopped() const
 {
     return m_displayedWhenStopped;
 }
 
 void QProgressIndicator::startAnimation()
 {
     m_angle = 0;
 
     if (m_timerId == -1)
         m_timerId = startTimer(m_delay);
 }
 
 void QProgressIndicator::stopAnimation()
 {
     if (m_timerId != -1)
         killTimer(m_timerId);
 
     m_timerId = -1;
 
     update();
 }
 
 void QProgressIndicator::setAnimationDelay(int delay)
 {
     if (m_timerId != -1)
         killTimer(m_timerId);
 
     m_delay = delay;
 
     if (m_timerId != -1)
         m_timerId = startTimer(m_delay);
 }
 
 void QProgressIndicator::setColor(const QColor &color)
 {
     m_color = color;
 
     update();
 }
 
 QSize QProgressIndicator::sizeHint() const
 {
     return QSize(20, 20);
 }
 
 int QProgressIndicator::heightForWidth(int w) const
 {
     return w;
 }
 
 void QProgressIndicator::timerEvent(QTimerEvent * /*event*/)
 {
     m_angle = (m_angle + 30) % 360;
 
     update();
 }
 
 void QProgressIndicator::paintEvent(QPaintEvent * /*event*/)
 {
     if (!m_displayedWhenStopped && !isAnimated())
         return;
 
     int width = qMin(this->width(), this->height());
 
     QPainter p(this);
     p.setRenderHint(QPainter::Antialiasing);
 
     int outerRadius = (width - 1) * 0.5;
     int innerRadius = (width - 1) * 0.5 * 0.38;
 
     int capsuleHeight = outerRadius - innerRadius;
     int capsuleWidth  = (width > 32) ? capsuleHeight * .23 : capsuleHeight * .35;
     int capsuleRadius = capsuleWidth / 2;
 
     for (int i = 0; i < 12; i++)
     {
         QColor color = m_color;
         color.setAlphaF(1.0f - (i / 12.0f));
         p.setPen(Qt::NoPen);
         p.setBrush(color);
         p.save();
         p.translate(rect().center());
         p.rotate(m_angle - i * 30.0f);
         p.drawRoundedRect(-capsuleWidth * 0.5, -(innerRadius + capsuleHeight), capsuleWidth, capsuleHeight,
                           capsuleRadius, capsuleRadius);
         p.restore();
     }
 }