Knob.h

/***************************************************************************************************
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            fantastic  spatial  holophonic               synthesis    tool    kit
 
                                    copyright (c) fabian hummel
                                       www.github.com/fshstk
                                           www.fshstk.com
 
         this file is part of the fantastic spatial holophonic synthesis toolkit (fsh::stk)
  fsh::stk is free software: it is provided under the terms of the gnu general public license v3.0
                                    www.gnu.org/licenses/gpl-3.0
***************************************************************************************************/
 
#pragma once
#include "Colors.h"
#include "StateManager.h"
#include <juce_gui_basics/juce_gui_basics.h>
 
namespace fsh::gui
{
class Knob : public juce::Slider
{
public:
  enum class Behavior
  {
    Bounded, 
    Endless  
  };
 
  struct Params
  {
    juce::Colour color = Colors::dark;     
    Behavior behavior = Behavior::Bounded; 
    float knobRangeDegrees = 270.0f;       
    float notchWidthDegrees = 7.0f;        
    float notchDepthFraction = 0.7f; 
  };
 
  explicit Knob(const Params&);
 
  void attach(plugin::StateManager&, juce::ParameterID);
 
private:
  std::unique_ptr<plugin::StateManager::SliderAttachment> _attachment;
  void paint(juce::Graphics& g) override;
  Params _params;
};
} // namespace fsh::gui