Pd::Graph::Layer Class Reference

Inheritance diagram for Pd::Graph::Layer:

Collaboration diagram for Pd::Graph::Layer:

Public Member Functions
	Layer (Graph *, QColor, Graph::State, std::chrono::nanoseconds)
	Constructor. More...
void	clearData ()
const ValueRing< double > &	getValues () const
void	setState (Graph::State)
void	setTimeRange (std::chrono::nanoseconds)
void	paint (QPainter &, double, const Scale &, const QRect &)
	Paint the graph layer. More...
void	resizeExtrema (unsigned int)
	Resizes the extrema ring buffer. More...
void	prepareSample (std::chrono::nanoseconds)
	Copy current values into trigger buffer. More...
bool	hasSampled () const

Private Types
typedef QPair< double, double >	Extrema
	Extrema type with minimum and maximum. More...

Private Member Functions
void	newValues (std::chrono::nanoseconds) override
	This virtual method is called by the ProcessVariable, if its value changes. More...
void	fillExtrema ()
	Fills the extrema with the values from the ring. More...
bool	appendToExtrema (std::chrono::nanoseconds, double)
	Appends a new data value to the extrema ring buffer. More...

Private Attributes
Graph *const	graph
	Parent graph. More...
QColor	color
	Graph color. More...
Graph::State	state
	Layer state. More...
double	value
	Current value. More...
bool	dataPresent
	value contains a valid value. More...
ValueRing< double >	values
	Ring buffer with time/value pairs. More...
ValueRing< double >	savedValues
	Buffer for saved values. More...
std::chrono::nanoseconds	timeToSample
QVector< Extrema >	extrema
	Vector containing the extrema to display. More...
int	extremaOffset
	Current offset in the extrema buffer. More...
std::chrono::nanoseconds	offsetTime
	Absolute time of the #offset. More...
unsigned int	validExtrema
	Number of valid extrema. More...
double	lastAppendedValue
	The last value appended by appendToExtrema(). More...

Member Typedef Documentation

Extrema

typedef QPair<double, double> Pd::Graph::Layer::Extrema

private

Extrema type with minimum and maximum.

Constructor & Destructor Documentation

Layer()

Pd::Graph::Layer::Layer	(	Graph *	parent,
		QColor	c,
		Graph::State	state,
		std::chrono::nanoseconds	timeRange
	)

Constructor.

References Pd::Graph::Layer::setTimeRange().

Member Function Documentation

appendToExtrema()

bool Pd::Graph::Layer::appendToExtrema ( std::chrono::nanoseconds  time, double  value  )

private

Appends a new data value to the extrema ring buffer.

Returns

true, if the widget has to be redrawn.

clearData()

void Pd::Graph::Layer::clearData

(

)

fillExtrema()

void Pd::Graph::Layer::fillExtrema ( )

private

Fills the extrema with the values from the ring.

References Pd::ValueRing< T >::getLength().

getValues()

const ValueRing< double > & Pd::Graph::Layer::getValues

(

)

const

Returns

The values currently displayed.

hasSampled()

bool Pd::Graph::Layer::hasSampled ( ) const

inline

References Pd::Graph::Layer::timeToSample.

newValues()

void Pd::Graph::Layer::newValues ( std::chrono::nanoseconds  ts )

overrideprivate

This virtual method is called by the ProcessVariable, if its value changes.

paint()

void Pd::Graph::Layer::paint	(	QPainter &	painter,
		double	scaleFactor,
		const Scale &	valueScale,
		const QRect &	graphRect
	)

Paint the graph layer.

References Pd::Scale::getMax(), and Pd::Scale::getMin().

prepareSample()

void Pd::Graph::Layer::prepareSample

(

std::chrono::nanoseconds

t

)

Copy current values into trigger buffer.

resizeExtrema()

void Pd::Graph::Layer::resizeExtrema

(

unsigned int

length

)

Resizes the extrema ring buffer.

Referenced by Pd::Graph::addVariable().

setState()

void Pd::Graph::Layer::setState

(

Graph::State

s

)

setTimeRange()

void Pd::Graph::Layer::setTimeRange

(

std::chrono::nanoseconds

range

)

Referenced by Pd::Graph::Layer::Layer().

Member Data Documentation

color

QColor Pd::Graph::Layer::color

private

Graph color.

dataPresent

bool Pd::Graph::Layer::dataPresent

private

value contains a valid value.

extrema

QVector<Extrema> Pd::Graph::Layer::extrema

private

Vector containing the extrema to display.

extremaOffset

int Pd::Graph::Layer::extremaOffset

private

Current offset in the extrema buffer.

graph

Graph* const Pd::Graph::Layer::graph

private

Parent graph.

lastAppendedValue

double Pd::Graph::Layer::lastAppendedValue

private

The last value appended by appendToExtrema().

offsetTime

std::chrono::nanoseconds Pd::Graph::Layer::offsetTime

private

Absolute time of the #offset.

savedValues

ValueRing<double> Pd::Graph::Layer::savedValues

private

Buffer for saved values.

state

Graph::State Pd::Graph::Layer::state

private

Layer state.

timeToSample

std::chrono::nanoseconds Pd::Graph::Layer::timeToSample

private

Referenced by Pd::Graph::Layer::hasSampled().

validExtrema

unsigned int Pd::Graph::Layer::validExtrema

private

Number of valid extrema.

value

double Pd::Graph::Layer::value

private

Current value.

values

ValueRing<double> Pd::Graph::Layer::values

private

Ring buffer with time/value pairs.

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The documentation for this class was generated from the following file:

• src/Graph.cpp