A class of MIDIOutputElements that read the input from a matrix of momentary push buttons or switches, and send out MIDI Note events. More...

#include <MIDI_Outputs/Bankable/NoteButtonMatrix.hpp>

Inheritance diagram for NoteButtonMatrix< nb_rows, nb_cols >:

Collaboration diagram for NoteButtonMatrix< nb_rows, nb_cols >:

Public Member Functions
	NoteButtonMatrix (const OutputBankConfig &config, const PinList< nb_rows > &rowPins, const PinList< nb_cols > &colPins, const AddressMatrix< nb_rows, nb_cols > &notes, MIDICNChannel channelCN={CHANNEL_1, 0}, uint8_t velocity=0x7F)
	Create a new Bankable NoteButtonMatrix object with the given pins, note numbers and channel. More...

void	setVelocity (uint8_t velocity)
	Set the velocity of the MIDI Note events. More...

uint8_t	getVelocity () const
	Get the velocity of the MIDI Note events. More...

void	begin () override
	Initialize this updatable. More...

void	update () override
	Update this updatable. More...

void	enable ()
	Enable this updatable: insert it into the linked list of instances, so it gets updated automatically. More...

void	disable ()
	Disable this updatable: remove it from the linked list of instances, so it no longer gets updated automatically. More...

bool	isEnabled ()
	Check if this updatable is enabled. More...

bool	getPrevState (uint8_t col, uint8_t row)
	Get the state of the button in the given column and row. More...

Static Public Member Functions
static void	enable (Updatable *element)

static void	enable (Updatable &element)

static void	enable (U(&array)[N])

static void	disable (Updatable< NormalUpdatable > *element)

static void	disable (Updatable< NormalUpdatable > &element)

static void	disable (U(&array)[N])

static void	beginAll ()
	Begin all enabled instances of this class. More...

static void	updateAll ()
	Update all enabled instances of this class. More...

Public Attributes
DigitalNoteSender	sender

Protected Attributes
Updatable< NormalUpdatable > *	next

Updatable< NormalUpdatable > *	previous

Private Member Functions
void	onButtonChanged (uint8_t row, uint8_t col, bool state) final override
	The callback function that is called whenever a button changes state. More...

void	setPrevState (uint8_t col, uint8_t row, bool state)

Static Private Member Functions
static uint8_t	positionToBits (uint8_t col, uint8_t row)

static uint8_t	bitsToIndex (uint8_t bits)

static uint8_t	bitsToBitmask (uint8_t bits)

Private Attributes
MatrixAddress< nb_rows, nb_cols >	address

uint16_t	activeButtons

unsigned long	prevRefresh = 0

uint8_t	prevStates [(nb_cols *nb_rows+7)/8]

const PinList< nb_rows >	rowPins

const PinList< nb_cols >	colPins

Static Private Attributes
static DoublyLinkedList< Updatable< NormalUpdatable > >	updatables

Detailed Description

template<uint8_t nb_rows, uint8_t nb_cols>
class Bankable::NoteButtonMatrix< nb_rows, nb_cols >

A class of MIDIOutputElements that read the input from a matrix of momentary push buttons or switches, and send out MIDI Note events.

A Note On event is sent when a button is pressed, and a Note Off event is sent when a button is released.
Crude software debouncing is implemented by limiting the refresh rate.
This version can be banked.

Template Parameters

nb_rows	The number of rows of the matrix.
nb_cols	The number of columns of the matrix.

Examples: Bank-Button-Matrix.ino.

Definition at line 29 of file Bankable/NoteButtonMatrix.hpp.

Constructor & Destructor Documentation

◆ NoteButtonMatrix()

NoteButtonMatrix	(	const OutputBankConfig &	config,
		const PinList< nb_rows > &	rowPins,
		const PinList< nb_cols > &	colPins,
		const AddressMatrix< nb_rows, nb_cols > &	notes,
		MIDICNChannel	channelCN = `{CHANNEL_1, 0}`,
		uint8_t	velocity = `0x7F`
	)

inline

Create a new Bankable NoteButtonMatrix object with the given pins, note numbers and channel.

Parameters

config	The bank configuration to use: the bank to add this element to, and whether to change the address, channel or cable number.
rowPins	A list of pin numbers connected to the rows of the button matrix. ⚠ These pins will be driven LOW as outputs (Lo-Z).
colPins	A list of pin numbers connected to the columns of the button matrix. These pins will be used as inputs (Hi-Z), and the internal pull-up resistor will be enabled.
notes	A 2-dimensional array of the same dimensions as the button matrix that contains the note number of each button. [0, 127]
channelCN	The MIDI channel [CHANNEL_1, CHANNEL_16] and Cable Number [0, 15].
velocity	The velocity of the MIDI Note events.

Definition at line 58 of file Bankable/NoteButtonMatrix.hpp.

Member Function Documentation

◆ setVelocity()

void setVelocity ( uint8_t velocity )

inline

Set the velocity of the MIDI Note events.

Definition at line 73 of file Bankable/NoteButtonMatrix.hpp.

◆ getVelocity()

uint8_t getVelocity ( ) const

inline

Get the velocity of the MIDI Note events.

Definition at line 75 of file Bankable/NoteButtonMatrix.hpp.

◆ begin()

void begin ( )

inlineoverridevirtualinherited

Initialize this updatable.

Implements Updatable<>.

Definition at line 57 of file Bankable/Abstract/MIDIButtonMatrix.hpp.

◆ update()

void update ( )

inlineoverridevirtualinherited

Update this updatable.

Implements Updatable<>.

Definition at line 59 of file Bankable/Abstract/MIDIButtonMatrix.hpp.

◆ onButtonChanged()

void onButtonChanged	(	uint8_t	row,
		uint8_t	col,
		bool	state
	)

inlinefinaloverrideprivatevirtualinherited

The callback function that is called whenever a button changes state.

Parameters

row	The row of the button that changed state.
col	The column of the button that changed state.
state	The new state of the button.

Implements ButtonMatrix< nb_rows, nb_cols >.

Definition at line 62 of file Bankable/Abstract/MIDIButtonMatrix.hpp.

◆ enable() [1/4]

void enable ( )

inlineinherited

Enable this updatable: insert it into the linked list of instances, so it gets updated automatically.

Definition at line 45 of file Updatable.hpp.

◆ enable() [2/4]

static void enable ( Updatable<> * element )

inlinestaticinherited

Definition at line 85 of file Updatable.hpp.

◆ enable() [3/4]

static void enable ( Updatable<> & element )

inlinestaticinherited

Definition at line 87 of file Updatable.hpp.

◆ enable() [4/4]

static void enable ( U(&) array[N] )

inlinestaticinherited

Definition at line 90 of file Updatable.hpp.

◆ disable() [1/4]

void disable ( )

inlineinherited

Disable this updatable: remove it from the linked list of instances, so it no longer gets updated automatically.

Definition at line 55 of file Updatable.hpp.

◆ disable() [2/4]

static void disable ( Updatable< NormalUpdatable<> > * element )

inlinestaticinherited

Definition at line 95 of file Updatable.hpp.

◆ disable() [3/4]

static void disable ( Updatable< NormalUpdatable<> > & element )

inlinestaticinherited

Definition at line 97 of file Updatable.hpp.

◆ disable() [4/4]

static void disable ( U(&) array[N] )

inlinestaticinherited

Definition at line 100 of file Updatable.hpp.

◆ isEnabled()

bool isEnabled ( )

inlineinherited

Check if this updatable is enabled.

Note: Assumes that the updatable is not added to a different linked list by the user.

Definition at line 69 of file Updatable.hpp.

◆ beginAll()

static void beginAll ( )

inlinestaticinherited

Begin all enabled instances of this class.

See also: begin()

Definition at line 73 of file Updatable.hpp.

◆ updateAll()

static void updateAll ( )

inlinestaticinherited

Update all enabled instances of this class.

See also: update()

Definition at line 80 of file Updatable.hpp.

◆ getPrevState()

bool getPrevState	(	uint8_t	col,
		uint8_t	row
	)

inherited

Get the state of the button in the given column and row.

Note: No bounds checking is performed.

Definition at line 69 of file ButtonMatrix.ipp.

◆ positionToBits()

uint8_t positionToBits	(	uint8_t	col,
		uint8_t	row
	)

inlinestaticprivateinherited

Definition at line 52 of file ButtonMatrix.ipp.

◆ bitsToIndex()

uint8_t bitsToIndex ( uint8_t bits )

inlinestaticprivateinherited

Definition at line 59 of file ButtonMatrix.ipp.

◆ bitsToBitmask()

uint8_t bitsToBitmask ( uint8_t bits )

inlinestaticprivateinherited

Definition at line 64 of file ButtonMatrix.ipp.

◆ setPrevState()

void setPrevState	(	uint8_t	col,
		uint8_t	row,
		bool	state
	)

privateinherited

Definition at line 75 of file ButtonMatrix.ipp.

Member Data Documentation

◆ address

MatrixAddress< nb_rows, nb_cols > address

privateinherited

Definition at line 76 of file Bankable/Abstract/MIDIButtonMatrix.hpp.

◆ activeButtons

uint16_t activeButtons

privateinherited

Definition at line 77 of file Bankable/Abstract/MIDIButtonMatrix.hpp.

◆ sender

DigitalNoteSender sender

inherited

Definition at line 80 of file Bankable/Abstract/MIDIButtonMatrix.hpp.

◆ updatables

DoublyLinkedList< Updatable< NormalUpdatable > > updatables

staticprivateinherited

Definition at line 106 of file Updatable.hpp.

◆ next

Updatable< NormalUpdatable > * next

protectedinherited

Definition at line 305 of file LinkedList.hpp.

◆ previous

Updatable< NormalUpdatable > * previous

protectedinherited

Definition at line 306 of file LinkedList.hpp.

◆ prevRefresh

unsigned long prevRefresh = 0

privateinherited

Definition at line 82 of file ButtonMatrix.hpp.

◆ prevStates

uint8_t prevStates[(nb_cols *nb_rows+7)/8]

privateinherited

Definition at line 83 of file ButtonMatrix.hpp.

◆ rowPins

const PinList<nb_rows> rowPins

privateinherited

Definition at line 85 of file ButtonMatrix.hpp.

◆ colPins

const PinList<nb_cols> colPins

privateinherited

Definition at line 86 of file ButtonMatrix.hpp.

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

Bankable/NoteButtonMatrix.hpp

Public Member Functions

Static Public Member Functions

Public Attributes

Protected Attributes

Private Member Functions

Static Private Member Functions

Private Attributes

Static Private Attributes

Detailed Description

template<uint8_t nb_rows, uint8_t nb_cols> class Bankable::NoteButtonMatrix< nb_rows, nb_cols >

Constructor & Destructor Documentation

◆ NoteButtonMatrix()

Member Function Documentation

◆ setVelocity()

◆ getVelocity()

◆ begin()

◆ update()

◆ onButtonChanged()

◆ enable() [1/4]

◆ enable() [2/4]

◆ enable() [3/4]

◆ enable() [4/4]

◆ disable() [1/4]

◆ disable() [2/4]

◆ disable() [3/4]

◆ disable() [4/4]

◆ isEnabled()

◆ beginAll()

◆ updateAll()

◆ getPrevState()

◆ positionToBits()

◆ bitsToIndex()

◆ bitsToBitmask()

◆ setPrevState()

Member Data Documentation

◆ address

◆ activeButtons

◆ sender

◆ updatables

◆ next

◆ previous

◆ prevRefresh

◆ prevStates

◆ rowPins

◆ colPins

template<uint8_t nb_rows, uint8_t nb_cols>
class Bankable::NoteButtonMatrix< nb_rows, nb_cols >