45 lines
1.4 KiB
C++
45 lines
1.4 KiB
C++
#include "CircularProgressBar.h"
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#include <QPainter>
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CircularProgressBar::CircularProgressBar( const QGradient& gradient, int progress, QQuickItem* parent )
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: QQuickPaintedItem( parent )
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, m_gradient( gradient )
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, m_progress( progress )
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{
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connect( this, &QQuickPaintedItem::contentsSizeChanged, [this]()
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{
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auto size = contentsSize();
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QRadialGradient ringGradient( size.width() / 2, size.height() / 2, 45 );
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QGradientStop stop1( 0.0, "#c0c0c0" );
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QGradientStop stop2( 0.5, "#f0f0f0" );
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QGradientStop stop3( 1.0, "#c0c0c0" );
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ringGradient.setStops( {stop1, stop2, stop3} );
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m_ringGradient = ringGradient;
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} );
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}
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void CircularProgressBar::paint( QPainter* painter )
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{
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auto size = contentsSize();
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QRectF outerRect( {0, 0}, size );
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painter->setRenderHint( QPainter::Antialiasing, true );
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painter->setBrush( m_ringGradient );
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painter->setPen( m_backgroundColor );
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painter->drawEllipse( outerRect );
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int startAngle = 1440;
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int endAngle = -16 * ( m_progress / 100.0 ) * 360;
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painter->setBrush( m_gradient );
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painter->drawPie( outerRect, startAngle, endAngle );
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painter->setBrush( m_backgroundColor );
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painter->setPen( m_backgroundColor );
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QRectF innerRect( width() / 2, width() / 2, size.width() - width(), size.height() - width() );
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painter->drawEllipse( innerRect );
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}
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