Line data    Source code

       1             : #pragma once
       2             : 
       3             : #include <AH/Containers/Array.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   An abstract class for momentary push buttons that send MIDI events.
      15             :  *
      16             :  * The buttons are debounced.
      17             :  * 
      18             :  * @todo    Use BankAddresses?
      19             :  *
      20             :  * @see     Button
      21             :  */
      22             : template <class BankAddress, class Sender, uint8_t NumButtons>
      23             : class MIDIButtons : public MIDIOutputElement {
      24             :   protected:
      25             :     /**
      26             :      * @brief   Construct a new MIDIButtons.
      27             :      *
      28             :      * @todo    Documentation
      29             :      */
      30           4 :     MIDIButtons(BankAddress bankAddress,
      31             :                 const Array<AH::Button, NumButtons> &buttons,
      32             :                 RelativeMIDIAddress incrementAddress, const Sender &sender)
      33           4 :         : address(bankAddress), buttons(buttons),
      34           8 :           incrementAddress(incrementAddress), sender(sender) {}
      35             : 
      36             :   public:
      37           2 :     void begin() final override {
      38           6 :         for (auto &button : buttons)
      39           4 :             button.begin();
      40           2 :     }
      41          16 :     void update() final override {
      42          16 :         RelativeMIDIAddress offset = {0, 0, 0};
      43          48 :         for (auto &button : buttons) {
      44          32 :             AH::Button::State state = button.update();
      45          32 :             if (state == AH::Button::Falling) {
      46           5 :                 if (!activeButtons)
      47           3 :                     address.lock(); // Don't allow changing of the bank setting
      48           5 :                 MIDIAddress sendAddress = address.getActiveAddress() + offset;
      49           5 :                 sender.sendOn(sendAddress);
      50           5 :                 activeButtons++;
      51          27 :             } else if (state == AH::Button::Rising) {
      52           5 :                 MIDIAddress sendAddress = address.getActiveAddress() + offset;
      53           5 :                 sender.sendOff(sendAddress);
      54           5 :                 activeButtons--;
      55           5 :                 if (!activeButtons)
      56           3 :                     address.unlock();
      57             :             }
      58          32 :             offset += incrementAddress;
      59             :         }
      60          16 :     }
      61             : 
      62             :     /// @see @ref AH::Button::invert()
      63             :     void invert() {
      64             :         for (auto &button : buttons)
      65             :             button.invert();
      66             :     }
      67             : 
      68             :     AH::Button::State getButtonState(size_t index) const {
      69             :         return buttons[index].getState();
      70             :     }
      71             : 
      72             :   protected:
      73             :     BankAddress address;
      74             :     Array<AH::Button, NumButtons> buttons;
      75             :     RelativeMIDIAddress incrementAddress;
      76             :     uint8_t activeButtons = 0;
      77             : 
      78             :   public:
      79             :     Sender sender;
      80             : };
      81             : 
      82             : } // namespace Bankable
      83             : 
      84             : END_CS_NAMESPACE