Line data    Source code

       1             : #pragma once
       2             : 
       3             : #include <AH/Containers/BitArray.hpp>
       4             : #include <AH/Hardware/Button.hpp>
       5             : #include <Banks/BankableAddresses.hpp>
       6             : #include <Def/Def.hpp>
       7             : #include <MIDI_Outputs/Abstract/MIDIOutputElement.hpp>
       8             : 
       9             : BEGIN_CS_NAMESPACE
      10             : 
      11             : namespace Bankable {
      12             : 
      13             : /**
      14             :  * @brief   A class for momentary buttons and switches that send MIDI events.
      15             :  *
      16             :  * The button is debounced, and the button is latched (press once to enable, 
      17             :  * press again to disable) (toggle).
      18             :  *
      19             :  * @see     AH::Button
      20             :  */
      21             : template <uint8_t NumBanks, class BankAddress, class Sender>
      22           2 : class MIDIButtonLatched : public MIDIOutputElement {
      23             :   protected:
      24             :     /**
      25             :      * @brief   Create a new bankable MIDIButtonLatched object on the given pin
      26             :      *          and address.
      27             :      * 
      28             :      * @param   bankAddress
      29             :      *          The bankable MIDI address to send to.
      30             :      * @param   pin
      31             :      *          The digital input pin with the button connected.
      32             :      *          The internal pull-up resistor will be enabled.
      33             :      * @param   sender
      34             :      *          The MIDI sender to use.
      35             :      */
      36           2 :     MIDIButtonLatched(BankAddress bankAddress, pin_t pin,
      37             :                       const Sender &sender)
      38           4 :         : address{bankAddress}, button{pin}, sender{sender} {}
      39             : 
      40             :   public:
      41           0 :     void begin() override { button.begin(); }
      42             : 
      43           0 :     void update() override {
      44           0 :         AH::Button::State state = button.update();
      45           0 :         if (state == AH::Button::Falling)
      46           0 :             toggleState();
      47           0 :     }
      48             : 
      49           0 :     bool toggleState() {
      50           0 :         bool newstate = !getState();
      51           0 :         setState(newstate);
      52           0 :         return newstate;
      53           0 :     }
      54             : 
      55           0 :     bool getState() const { return states.get(address.getSelection()); }
      56             : 
      57           0 :     void setState(bool state) {
      58           0 :         states.set(address.getSelection(), state);
      59           0 :         if (state) {
      60           0 :             sender.sendOn(address.getActiveAddress());
      61           0 :         } else {
      62           0 :             sender.sendOff(address.getActiveAddress());
      63             :         }
      64           0 :     }
      65             : 
      66             :     AH::Button::State getButtonState() const { return button.getState(); }
      67             : 
      68             :   private:
      69             :     BankAddress address;
      70             :     AH::Button button;
      71             :     AH::BitArray<NumBanks> states;
      72             : 
      73             :   public:
      74             :     Sender sender;
      75             : };
      76             : 
      77             : } // namespace Bankable
      78             : 
      79             : END_CS_NAMESPACE