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#include <QPainter>
#include <QParallelAnimationGroup>
#include <QPen>
#include <QPropertyAnimation>
#include "CircularProgress.h"
#include "Theme.h"
CircularProgress::CircularProgress(QWidget *parent)
: QProgressBar{parent}
, progress_type_{ui::ProgressType::IndeterminateProgress}
, width_{6.25}
, size_{64}
{
delegate_ = new CircularProgressDelegate(this);
setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::MinimumExpanding);
auto group = new QParallelAnimationGroup(this);
group->setLoopCount(-1);
auto length_animation = new QPropertyAnimation(this);
length_animation->setPropertyName("dashLength");
length_animation->setTargetObject(delegate_);
length_animation->setEasingCurve(QEasingCurve::InOutQuad);
length_animation->setStartValue(0.1);
length_animation->setKeyValueAt(0.15, 0.2);
length_animation->setKeyValueAt(0.6, 20);
length_animation->setKeyValueAt(0.7, 20);
length_animation->setEndValue(20);
length_animation->setDuration(2050);
auto offset_animation = new QPropertyAnimation(this);
offset_animation->setPropertyName("dashOffset");
offset_animation->setTargetObject(delegate_);
offset_animation->setEasingCurve(QEasingCurve::InOutSine);
offset_animation->setStartValue(0);
offset_animation->setKeyValueAt(0.15, 0);
offset_animation->setKeyValueAt(0.6, -7);
offset_animation->setKeyValueAt(0.7, -7);
offset_animation->setEndValue(-25);
offset_animation->setDuration(2050);
auto angle_animation = new QPropertyAnimation(this);
angle_animation->setPropertyName("angle");
angle_animation->setTargetObject(delegate_);
angle_animation->setStartValue(0);
angle_animation->setEndValue(719);
angle_animation->setDuration(2050);
group->addAnimation(length_animation);
group->addAnimation(offset_animation);
group->addAnimation(angle_animation);
group->start();
}
void CircularProgress::setProgressType(ui::ProgressType type)
{
progress_type_ = type;
update();
}
void CircularProgress::setLineWidth(qreal width)
{
width_ = width;
update();
updateGeometry();
}
void CircularProgress::setSize(int size)
{
size_ = size;
update();
updateGeometry();
}
ui::ProgressType CircularProgress::progressType() const
{
return progress_type_;
}
qreal CircularProgress::lineWidth() const
{
return width_;
}
int CircularProgress::size() const
{
return size_;
}
void CircularProgress::setColor(const QColor &color)
{
color_ = color;
}
QColor CircularProgress::color() const
{
if (!color_.isValid()) {
return QColor("red");
}
return color_;
}
QSize CircularProgress::sizeHint() const
{
const qreal s = size_ + width_ + 8;
return QSize(s, s);
}
void CircularProgress::paintEvent(QPaintEvent *event)
{
Q_UNUSED(event);
QPainter painter(this);
painter.setRenderHint(QPainter::Antialiasing);
/*
* If the progress bar is disabled draw an X instead
*/
if (!isEnabled()) {
QPen pen;
pen.setCapStyle(Qt::RoundCap);
pen.setWidthF(lineWidth());
pen.setColor("gray");
auto center = rect().center();
painter.setPen(pen);
painter.drawLine(center - QPointF(20, 20), center + QPointF(20, 20));
painter.drawLine(center + QPointF(20, -20), center - QPointF(20, -20));
return;
}
if (progress_type_ == ui::ProgressType::IndeterminateProgress) {
painter.translate(width() / 2, height() / 2);
painter.rotate(delegate_->angle());
}
QPen pen;
pen.setCapStyle(Qt::RoundCap);
pen.setWidthF(width_);
pen.setColor(color());
if (ui::ProgressType::IndeterminateProgress == progress_type_) {
QVector<qreal> pattern;
pattern << delegate_->dashLength() * size_ / 50 << 30 * size_ / 50;
pen.setDashOffset(delegate_->dashOffset() * size_ / 50);
pen.setDashPattern(pattern);
painter.setPen(pen);
painter.drawEllipse(QPoint(0, 0), size_ / 2, size_ / 2);
} else {
painter.setPen(pen);
const qreal x = (width() - size_) / 2;
const qreal y = (height() - size_) / 2;
const qreal a = 360 * (value() - minimum()) / (maximum() - minimum());
QPainterPath path;
path.arcMoveTo(x, y, size_, size_, 0);
path.arcTo(x, y, size_, size_, 0, a);
painter.drawPath(path);
}
}
CircularProgress::~CircularProgress()
{
}
CircularProgressDelegate::CircularProgressDelegate(CircularProgress *parent)
: QObject(parent)
, progress_(parent)
, dash_offset_(0)
, dash_length_(89)
, angle_(0)
{
Q_ASSERT(parent);
}
CircularProgressDelegate::~CircularProgressDelegate()
{
}
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