ProgramSelector.hpp

// Noise Plethora
// Copyright (c) 2021 Befaco / Jeremy Bernstein
// Open-source software
// Licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported
// See LICENSE.txt for the complete license text

#pragma once

#include "Banks.hpp"

#define CLAMP(x, a, b) (x) < (a) ? (a) : (x) > (b) ? (b) : (x);

enum {
  PROG_A = 0,
  PROG_B
};

class Selection {

public:

  Selection(int numPrograms = programsPerBank)
    : value(0)
    , min(0)
    , max(numPrograms - 1)
  {}

  int getValue() {
    return value;
  }

  int setValue(int val, int numValues = -1) {
    if (numValues == -1) numValues = max + 1;
    val = CLAMP(val, min, numValues - 1);
    value = val;
    return value;
  }

  void setMin(int v) {
    min = v;
  }

  void setMax(int v) {
    max = v;
  }

private:

  int value;
  int min;
  int max;

};

class ProgramSelection {

public:

  int getBank() { return bank.getValue(); }
  int getProgram() { return program.getValue(); }
  int setBank(int b) {
    if (getBankForIndex(b).getSize()) { // assumed that only top bank can be empty
      return bank.setValue(b);
    }
    return getBank();
  }
  int setProgram(int p) {
    return program.setValue(p, getBankForIndex(getBank()).getSize());
  }

  const char* getCurrentProgramName() {
    return getBankForIndex(getBank()).getProgramName(getProgram());
  }

  float getCurrentProgramGain() {
    return getBankForIndex(getBank()).getProgramGain(getProgram());
  }

private:

  Selection bank{numBanks};
  Selection program;

};

class ProgramSelector {

public:

  ProgramSelector()
    : currentProgram(PROG_A)
  {}

  ~ProgramSelector() {}

  ProgramSelection& getCurrent() { return currentProgram == PROG_A ? progA : progB; }
  ProgramSelection& getA() { return progA; }
  ProgramSelection& getB() { return progB; }

  unsigned int getMode() { return currentProgram; }
  void setMode(unsigned int current) { currentProgram = current ? PROG_B : PROG_A; }

private:

  ProgramSelection progA;
  ProgramSelection progB;
  unsigned int currentProgram;

};