C++ (Cpp) calculateDisplayPeak Examples

Example #1

File: Fader.cpp Project: JohannesLorenz/lmms

void Fader::paintLinearLevels(QPaintEvent * ev, QPainter & painter)
{
	// peak leds
	//float fRange = abs( m_fMaxPeak ) + abs( m_fMinPeak );

	int height = m_back->height();
	int width = m_back->width() / 2;
	int center = m_back->width() - width;

	int peak_L = calculateDisplayPeak( m_fPeakValue_L - m_fMinPeak );
	int persistentPeak_L = qMax<int>( 3, calculateDisplayPeak( m_persistentPeak_L - m_fMinPeak ) );
	painter.drawPixmap( QRect( 0, peak_L, width, height - peak_L ), *m_leds, QRect( 0, peak_L, width, height - peak_L ) );

	if( m_persistentPeak_L > 0.05 )
	{
		painter.fillRect( QRect( 2, persistentPeak_L, 7, 1 ), ( m_persistentPeak_L < 1.0 )
			? peakGreen()
			: peakRed() );
	}

	int peak_R = calculateDisplayPeak( m_fPeakValue_R - m_fMinPeak );
	int persistentPeak_R = qMax<int>( 3, calculateDisplayPeak( m_persistentPeak_R - m_fMinPeak ) );
	painter.drawPixmap( QRect( center, peak_R, width, height - peak_R ), *m_leds, QRect( center, peak_R, width, height - peak_R ) );

	if( m_persistentPeak_R > 0.05 )
	{
		painter.fillRect( QRect( 14, persistentPeak_R, 7, 1 ), ( m_persistentPeak_R < 1.0 )
			? peakGreen()
			: peakRed() );
	}
}

Example #2

File: fader.cpp Project: AHudon/SOEN6471_LMMS

void fader::paintEvent( QPaintEvent * ev)
{
	QPainter painter(this);

	// background
//	painter.drawPixmap( rect(), m_back, QRect( 0, 0, 23, 116 ) );
	painter.drawPixmap( ev->rect(), m_back, ev->rect() );


	// peak leds
	//float fRange = abs( m_fMaxPeak ) + abs( m_fMinPeak );

	int peak_L = calculateDisplayPeak( m_fPeakValue_L - m_fMinPeak );
	int persistentPeak_L = qMax<int>( 3, calculateDisplayPeak( m_persistentPeak_L - m_fMinPeak ) );
	painter.drawPixmap( QRect( 0, peak_L, 11, 116 - peak_L ), m_leds, QRect( 0, peak_L, 11, 116 - peak_L ) );

	if( m_persistentPeak_L > 0.05 )
	{
		painter.fillRect( QRect( 2, persistentPeak_L, 7, 1 ), (m_persistentPeak_L < 1.0 )? QColor( 74, 253, 133) : QColor( 255, 100, 100));
	}

	int peak_R = calculateDisplayPeak( m_fPeakValue_R - m_fMinPeak );
	int persistentPeak_R = qMax<int>( 3, calculateDisplayPeak( m_persistentPeak_R - m_fMinPeak ) );
	painter.drawPixmap( QRect( 11, peak_R, 11, 116 - peak_R ), m_leds, QRect( 11, peak_R, 11, 116 - peak_R ) );

	if( m_persistentPeak_R > 0.05 )
	{
		painter.fillRect( QRect( 14, persistentPeak_R, 7, 1 ), (m_persistentPeak_R < 1.0 )? QColor( 74, 253, 133) : QColor( 255, 100, 100));
	}

	// knob
	painter.drawPixmap( 0, knobPosY() - m_knob.height(), m_knob );
}

Example #3

File: fader.cpp Project: bhattigurjot/lmms

void fader::paintEvent( QPaintEvent * ev)
{
	QPainter painter(this);

	// background
	painter.drawPixmap( ev->rect(), *s_back, ev->rect() );


	// peak leds
	//float fRange = abs( m_fMaxPeak ) + abs( m_fMinPeak );

	int peak_L = calculateDisplayPeak( m_fPeakValue_L - m_fMinPeak );
	int persistentPeak_L = qMax<int>( 3, calculateDisplayPeak( m_persistentPeak_L - m_fMinPeak ) );
	painter.drawPixmap( QRect( 0, peak_L, 11, 116 - peak_L ), *s_leds, QRect( 0, peak_L, 11, 116 - peak_L ) );

	if( m_persistentPeak_L > 0.05 )
	{
		painter.fillRect( QRect( 2, persistentPeak_L, 7, 1 ), ( m_persistentPeak_L < 1.0 )
			? peakGreen() 
			: peakRed() );
	}

	int peak_R = calculateDisplayPeak( m_fPeakValue_R - m_fMinPeak );
	int persistentPeak_R = qMax<int>( 3, calculateDisplayPeak( m_persistentPeak_R - m_fMinPeak ) );
	painter.drawPixmap( QRect( 11, peak_R, 11, 116 - peak_R ), *s_leds, QRect( 11, peak_R, 11, 116 - peak_R ) );

	if( m_persistentPeak_R > 0.05 )
	{
		painter.fillRect( QRect( 14, persistentPeak_R, 7, 1 ), ( m_persistentPeak_R < 1.0 )
			? peakGreen() 
			: peakRed() );
	}

	// knob
	painter.drawPixmap( 0, knobPosY() - ( *s_knob ).height(), *s_knob );
}