CpuLoadWidget Class Reference

Shows the current CPU load using a meter similar to the one used in Fader. More...

#include <CpuLoadWidget.h>

Inheritance diagram for CpuLoadWidget:

Public Member Functions
	CpuLoadWidget (QWidget *pParent)
	~CpuLoadWidget ()
Public Member Functions inherited from EventListener
virtual	~EventListener ()
virtual void	actionModeChangeEvent (int nValue)
virtual void	bbtChangedEvent ()
virtual void	driverChangedEvent ()
virtual void	drumkitLoadedEvent ()
virtual void	errorEvent (int nErrorCode)
virtual void	gridCellToggledEvent ()
virtual void	instrumentParametersChangedEvent (int nInstrumentNumber)
virtual void	jacksessionEvent (int nValue)
virtual void	jackTimebaseStateChangedEvent (int nValue)
virtual void	jackTransportActivationEvent ()
virtual void	loopModeActivationEvent ()
virtual void	metronomeEvent (int nValue)
virtual void	midiActivityEvent ()
virtual void	midiMapChangedEvent ()
virtual void	nextPatternsChangedEvent ()
virtual void	nextShotEvent ()
virtual void	noteOnEvent (int nInstrument)
virtual void	patternEditorLockedEvent ()
virtual void	patternModifiedEvent ()
virtual void	playbackTrackChangedEvent ()
virtual void	playingPatternsChangedEvent ()
virtual void	playlistLoadSongEvent (int nIndex)
virtual void	progressEvent (int nValue)
virtual void	quitEvent (int nValue)
virtual void	relocationEvent ()
virtual void	selectedInstrumentChangedEvent ()
virtual void	selectedPatternChangedEvent ()
virtual void	songModeActivationEvent ()
virtual void	songModifiedEvent ()
virtual void	songSizeChangedEvent ()
virtual void	soundLibraryChangedEvent ()
virtual void	stackedModeActivationEvent (int nValue)
virtual void	stateChangedEvent (H2Core::AudioEngine::State state)
virtual void	tempoChangedEvent (int nValue)
virtual void	timelineActivationEvent ()
virtual void	timelineUpdateEvent (int nValue)
virtual void	undoRedoActionEvent (int nValue)
virtual void	updatePreferencesEvent (int nValue)
virtual void	updateSongEvent (int nValue)
Public Member Functions inherited from Object< CpuLoadWidget >
	Object ()
	Object (const Object< CpuLoadWidget > &other)
Public Member Functions inherited from Base
	Base ()
	Base (const Base &other)
virtual const char *	class_name () const
void	logBacktrace () const
	Print the current stack at point into the debug log.
void	Print (bool bShort=true) const
	Prints content of toQString() via DEBUGLOG.
virtual QString	toQString (const QString &sPrefix="", bool bShort=true) const
	Formatted string version for debugging purposes.

Private Slots
void	updateCpuLoadWidget ()

Private Member Functions
virtual void	paintEvent (QPaintEvent *ev) override
virtual void	XRunEvent () override

Private Attributes
float	m_fValue
uint	m_nXRunValue
std::vector< float >	m_recentValues
QSize	m_size

Additional Inherited Members
Static Public Member Functions inherited from Base
static const char *	_class_name ()
	return the class name
static QString	base_clock (const QString &sMsg)
	Measures the current time and stores it in __last_clock.
static QString	base_clock_in (const QString &sMsg)
static int	bootstrap (Logger *logger, bool count=false)
	must be called before any Object instantiation !
static bool	count_active ()
static int	getAliveObjectCount ()
static object_map_t	getObjectMap ()
static Logger *	logger ()
	return the logger instance
static int	objects_count ()
static void	printObjectMapDiff (object_map_t map)
	Creates the difference between a snapshot of the object map and its current state and prints it to std::cout.
static void	set_count (bool flag)
	enable/disable class instances counting
static void	write_objects_map_to (std::ostream &out, object_map_t *map=nullptr)
	output the full objects map to a given ostream
static void	write_objects_map_to_cerr ()
	output objects map to stderr
Static Public Attributes inherited from Base
static QString	sPrintIndention = " "
	String used to format the debugging string output of some core classes.
Protected Member Functions inherited from Object< CpuLoadWidget >
	~Object ()
Protected Member Functions inherited from Base
	~Base ()
Static Protected Member Functions inherited from Base
static void	registerClass (const char *name, const atomic_obj_cpt_t *counters)
Static Protected Attributes inherited from Base
static bool	__count = false
	should we count class instances
static timeval	__last_clock = { 0, 0 }
static Logger *	__logger = nullptr
static bool	bLogColors = true

Detailed Description

Shows the current CPU load using a meter similar to the one used in Fader.

All aspects of the widgets are directly drawn.

In order to not annoy and to give a better view on the overall CPU load, the widget measures the load at five consecutive points in time and displays the average.

In case an XRun event is reported by the JACK server, the outlines of he widget will be painted in red for 1.5 seconds.

Definition at line 49 of file CpuLoadWidget.h.

Constructor & Destructor Documentation

CpuLoadWidget()

CpuLoadWidget ( QWidget * pParent )

explicit

Definition at line 30 of file CpuLoadWidget.cpp.

~CpuLoadWidget()

~CpuLoadWidget

(

)

Definition at line 57 of file CpuLoadWidget.cpp.

Member Function Documentation

paintEvent()

void paintEvent ( QPaintEvent * ev )

overrideprivatevirtual

Definition at line 60 of file CpuLoadWidget.cpp.

updateCpuLoadWidget

void updateCpuLoadWidget ( )

privateslot

Definition at line 118 of file CpuLoadWidget.cpp.

XRunEvent()

void XRunEvent ( )

overrideprivatevirtual

Reimplemented from EventListener.

Definition at line 147 of file CpuLoadWidget.cpp.

Field Documentation

m_fValue

float m_fValue

private

Definition at line 63 of file CpuLoadWidget.h.

m_nXRunValue

uint m_nXRunValue

private

Definition at line 64 of file CpuLoadWidget.h.

m_recentValues

std::vector<float> m_recentValues

private

Definition at line 62 of file CpuLoadWidget.h.

m_size

QSize m_size

private

Definition at line 65 of file CpuLoadWidget.h.