#include <AH/Hardware/IncrementDecrementButtons.hpp>

Detailed Description

A class for buttons that increment and decrement some counter or setting.

It behaves the same way as a computer keyboard: when you press the increment (decrement) button, it increments (decrements) the counter once. If you keep on pressing it for longer than a certain threshold, it keeps on incrementing (decrementing) at a faster rate, until you release it.
If both the increment and the decrement button are pressed at once, it resets the counter.

Definition at line 22 of file IncrementDecrementButtons.hpp.

Collaboration diagram for IncrementDecrementButtons:

Public Types
enum	State { Nothing = 0 , IncrementShort , IncrementLong , IncrementHold , DecrementShort , DecrementLong , DecrementHold , Reset }
	An enumeration of the different actions to be performed by the counter. More...

Public Member Functions
	IncrementDecrementButtons (const Button &incrementButton, const Button &decrementButton)
	Create a IncrementDecrementButtons object.

void	begin ()

State	update ()
	Update and return the state of the increment/decrement button.

State	getState () const
	Return the state of the increment/decrement button without updating it.

void	invert ()

Protected Member Functions
State	updateImplementation ()

Private Types
enum	{ Initial , LongPress , AfterReset }

Private Attributes
Button	incrementButton

Button	decrementButton

enum AH::IncrementDecrementButtons:: { ... }	longPressState = Initial

unsigned long	longPressRepeat

State	state = Nothing

Member Enumeration Documentation

◆ State

enum State

An enumeration of the different actions to be performed by the counter.

Enumerator
Nothing	The counter should not be incremented.
IncrementShort	The counter must be incremented (after short press).
IncrementLong	The counter must be incremented (after long press).
IncrementHold	The counter must be incremented (still pressed).
DecrementShort	The counter must be decremented (after short press).
DecrementLong	The counter must be decremented (after long press).
DecrementHold	The counter must be decremented (still pressed).
Reset	The counter should be reset to the initial value.