FourierSpectrumGraphDrawer Class Reference

The FourierSpectrumGraphDrawer class. More...

#include <fourierspectrumgraphdrawer.h>

Inheritance diagram for FourierSpectrumGraphDrawer:

Collaboration diagram for FourierSpectrumGraphDrawer:

Public Types
enum	RoleType { ROLE_GLOBAL = 1, ROLE_CHART = 2, ROLE_PEAK = 4 }
	< Roles of the items used here More...

Public Member Functions
	FourierSpectrumGraphDrawer (GraphicsViewAdapter *graphics)
	Constructor of a FourierSpectrumGraphDrawer. More...
	~FourierSpectrumGraphDrawer ()
	Empty destructor. More...
Public Member Functions inherited from DrawerBase
	DrawerBase (GraphicsViewAdapter *graphics, double intervall=1.0/24.0)
	Constructor of a drawer. More...
	~DrawerBase ()
void	redraw (bool force=false)
	Function to completely redraw the scene. More...
bool	requestRedraw (bool force=false)
	Check whether the content has to be redrawn. More...
Public Member Functions inherited from MessageListener
	MessageListener (bool defaultActivation=true)
virtual	~MessageListener ()
bool	isMessageListenerActive () const
void	activateMessageListener ()
void	deactivateMessageListener ()

Public Attributes
const double	updateInterval = 1.0
	Update interval at least 1 sec. More...

Protected Member Functions
virtual void	draw () overridefinal
	Draw the spectrum. More...
virtual void	clear () overridefinal
	Clear the spectrum. More...
virtual void	handleMessage (MessagePtr m) override
	Message dispatcher for FourierSpectrumGraphDrawer. More...
void	updateSpectrum ()
	Function for updating the red curve showing the spectrum. More...

Private Attributes
double	mConcertPitch
	Target freuqency of A4. More...
int	mKeyNumberOfA4
	Index of A4 key. More...
int	mNumberOfKeys
	Total number of keys. More...
int	mSamplingRate
	copy of sample rate More...
OperationMode	mCurrentOperationMode
	Current mode of operation. More...
std::shared_ptr< FFTPolygon >	mPolygon
	Shared pointer to spectral polygon. More...
std::shared_ptr< Key >	mKey
	Shared pointer to selected key, holding the peaks. More...

Additional Inherited Members
Protected Attributes inherited from DrawerBase
GraphicsViewAdapter *	mGraphics
	Pointer to the graphics view adapter. More...

Detailed Description

The FourierSpectrumGraphDrawer class.

This class is drawing the spectrum (the red line) and if available the peak markers on top of it.

The FourierSpectrumGraphDrawer is completely driven by messages.

Definition at line 42 of file fourierspectrumgraphdrawer.h.

Member Enumeration Documentation

enum FourierSpectrumGraphDrawer::RoleType

< Roles of the items used here

Enumerator
ROLE_GLOBAL	Global elements.
ROLE_CHART	Chart items (polygons)
ROLE_PEAK	Peak markers.

Definition at line 47 of file fourierspectrumgraphdrawer.h.

Constructor & Destructor Documentation

FourierSpectrumGraphDrawer::FourierSpectrumGraphDrawer

(

GraphicsViewAdapter *

graphics

)

Constructor of a FourierSpectrumGraphDrawer.

Parameters

graphics

: Pointer to the graphics adapter

Definition at line 42 of file fourierspectrumgraphdrawer.cpp.

FourierSpectrumGraphDrawer::~FourierSpectrumGraphDrawer ( )

inline

Empty destructor.

Definition at line 56 of file fourierspectrumgraphdrawer.h.

Member Function Documentation

void FourierSpectrumGraphDrawer::clear ( )

finaloverrideprotectedvirtual

Clear the spectrum.

Reimplemented from DrawerBase.

Definition at line 177 of file fourierspectrumgraphdrawer.cpp.

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void FourierSpectrumGraphDrawer::draw ( )

finaloverrideprotectedvirtual

Draw the spectrum.

This function first draws the background grid and then calls the function updateSpectrum() which does the actual drawing of the curve.

Implements DrawerBase.

Definition at line 64 of file fourierspectrumgraphdrawer.cpp.

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void FourierSpectrumGraphDrawer::handleMessage ( MessagePtr  m )

overrideprotectedvirtual

Message dispatcher for FourierSpectrumGraphDrawer.

Parameters

m	: Message pointer

Implements MessageListener.

Definition at line 190 of file fourierspectrumgraphdrawer.cpp.

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void FourierSpectrumGraphDrawer::updateSpectrum ( )

protected

Function for updating the red curve showing the spectrum.

This function actually draws the spectrum. It puts graphic items which are defined by different roles (global,chart,peak). First the old elements are removed (one chart, many peaks). The data used for plotting is held by the shared pointers mKey and mPolygon. Then the peaks are placed and finally the red line is plotted as a polygon.

Definition at line 92 of file fourierspectrumgraphdrawer.cpp.

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Member Data Documentation

double FourierSpectrumGraphDrawer::mConcertPitch

private

Target freuqency of A4.

Definition at line 66 of file fourierspectrumgraphdrawer.h.

OperationMode FourierSpectrumGraphDrawer::mCurrentOperationMode

private

Current mode of operation.

Definition at line 70 of file fourierspectrumgraphdrawer.h.

std::shared_ptr<Key> FourierSpectrumGraphDrawer::mKey

private

Shared pointer to selected key, holding the peaks.

Definition at line 72 of file fourierspectrumgraphdrawer.h.

int FourierSpectrumGraphDrawer::mKeyNumberOfA4

private

Index of A4 key.

Definition at line 67 of file fourierspectrumgraphdrawer.h.

int FourierSpectrumGraphDrawer::mNumberOfKeys

private

Total number of keys.

Definition at line 68 of file fourierspectrumgraphdrawer.h.

std::shared_ptr<FFTPolygon> FourierSpectrumGraphDrawer::mPolygon

private

Shared pointer to spectral polygon.

Definition at line 71 of file fourierspectrumgraphdrawer.h.

int FourierSpectrumGraphDrawer::mSamplingRate

private

copy of sample rate

Definition at line 69 of file fourierspectrumgraphdrawer.h.

const double FourierSpectrumGraphDrawer::updateInterval = 1.0

Update interval at least 1 sec.

Definition at line 45 of file fourierspectrumgraphdrawer.h.

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

• /home/hinrichsen/Dokumente/Aktuell/EPT/Entropy-Piano-Tuner/core/drawers/fourierspectrumgraphdrawer.h
• /home/hinrichsen/Dokumente/Aktuell/EPT/Entropy-Piano-Tuner/core/drawers/fourierspectrumgraphdrawer.cpp