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https://github.com/GoldenCheetah/GoldenCheetah.git
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49cf6340a4
This commit is based on https://github.com/GoldenCheetah/GoldenCheetah/pull/3956 with the following additions / changes: * Upgraded to the latest version of the multiaxes-branch, thus eliminating crashes of GoldenCheetah on startup * Disabled the emitting of Layout Requests on geometry changes of QwtScaleWidget - without this, CPU utilization was up to 100% on one core * Added the class SplineLookup, reusing small portions of code from Qwt 6.1 * Re-added the splines in WPrime and RideFile (resampling), using the new interface of QwtSpline * Appveyor: qwt in cache-section now depends on qwt/qwtconfig.prin.in for refresh on version change
38 lines
1010 B
C++
38 lines
1010 B
C++
/*****************************************************************************
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* Qwt Examples - Copyright (C) 2002 Uwe Rathmann
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* This file may be used under the terms of the 3-clause BSD License
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*****************************************************************************/
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#pragma once
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#include <QwtSeriesData>
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#include <QVector>
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class CircularBuffer : public QwtSeriesData< QPointF >
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{
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public:
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CircularBuffer( double interval = 10.0, size_t numPoints = 1000 );
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void fill( double interval, size_t numPoints );
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void setReferenceTime( double );
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double referenceTime() const;
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virtual size_t size() const QWT_OVERRIDE;
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virtual QPointF sample( size_t index ) const QWT_OVERRIDE;
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virtual QRectF boundingRect() const QWT_OVERRIDE;
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void setFunction( double ( * y )( double ) );
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private:
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double ( * m_y )( double );
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double m_referenceTime;
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double m_interval;
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QVector< double > m_values;
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double m_step;
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int m_startIndex;
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double m_offset;
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};
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