Line data    Source code

       1              : #pragma once
       2              : 
       3              : #include <AH/Hardware/Button.hpp>
       4              : #include <Def/Def.hpp>
       5              : #include <MIDI_Outputs/Abstract/MIDIOutputElement.hpp>
       6              : 
       7              : BEGIN_CS_NAMESPACE
       8              : 
       9              : /**
      10              :  * @brief   An abstract class for momentary push buttons that send MIDI events.
      11              :  *
      12              :  * The button is debounced.
      13              :  *
      14              :  * @see     Button
      15              :  */
      16              : template <class Sender>
      17              : class MIDIButton : public MIDIOutputElement {
      18              :   public:
      19              :     /**
      20              :      * @brief   Construct a new MIDIButton.
      21              :      *
      22              :      * @param   pin
      23              :      *          The digital input pin with the button connected.
      24              :      *          The internal pull-up resistor will be enabled.
      25              :      * @param   address
      26              :      *          The MIDI address to send to.
      27              :      * @param   sender
      28              :      *          The MIDI sender to use.
      29              :      */
      30            5 :     MIDIButton(pin_t pin, MIDIAddress address, const Sender &sender)
      31            5 :         : button(pin), address(address), sender(sender) {}
      32              : 
      33            2 :     void begin() override { button.begin(); }
      34            8 :     void update() override {
      35            8 :         AH::Button::State state = button.update();
      36            8 :         if (state == AH::Button::Falling) {
      37            2 :             sender.sendOn(address);
      38            6 :         } else if (state == AH::Button::Rising) {
      39            2 :             sender.sendOff(address);
      40              :         }
      41            8 :     }
      42              : 
      43              :     /// @see @ref AH::Button::invert()
      44              :     void invert() { button.invert(); }
      45              : 
      46              :     AH::Button::State getButtonState() const { return button.getState(); }
      47              : 
      48              :     /// Get the MIDI address.
      49              :     MIDIAddress getAddress() const { return this->address; }
      50              :     /// Set the MIDI address. Has unexpected consequences if used while the
      51              :     /// push button is pressed. Use banks if you need to support that.
      52              :     void setAddressUnsafe(MIDIAddress address) { this->address = address; }
      53              : 
      54              :   private:
      55              :     AH::Button button;
      56              :     MIDIAddress address;
      57              : 
      58              :   public:
      59              :     Sender sender;
      60              : };
      61              : 
      62              : END_CS_NAMESPACE