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             :     const MIDIAddress address;
      57             : 
      58             :   public:
      59             :     Sender sender;
      60             : };
      61             : 
      62             : END_CS_NAMESPACE