juce_AudioParameterFloat.h

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/*
  ==============================================================================
 
   This file is part of the JUCE library.
   Copyright (c) 2022 - Raw Material Software Limited
 
   JUCE is an open source library subject to commercial or open-source
   licensing.
 
   By using JUCE, you agree to the terms of both the JUCE 7 End-User License
   Agreement and JUCE Privacy Policy.
 
   End User License Agreement: www.juce.com/juce-7-licence
   Privacy Policy: www.juce.com/juce-privacy-policy
 
   Or: You may also use this code under the terms of the GPL v3 (see
   www.gnu.org/licenses).
 
   JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
   EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
   DISCLAIMED.
 
  ==============================================================================
*/
 
namespace juce
{

class AudioParameterFloatAttributes : public RangedAudioParameterAttributes<AudioParameterFloatAttributes, float> {};
 
//==============================================================================
class JUCE_API  AudioParameterFloat  : public RangedAudioParameter
{
public:
    AudioParameterFloat (const ParameterID& parameterID,
                         const String& parameterName,
                         NormalisableRange<float> normalisableRange,
                         float defaultValue,
                         const AudioParameterFloatAttributes& attributes = {});

    [[deprecated ("Prefer the signature taking an Attributes argument")]]
    AudioParameterFloat (const ParameterID& parameterID,
                         const String& parameterName,
                         NormalisableRange<float> normalisableRange,
                         float defaultValue,
                         const String& parameterLabel,
                         Category parameterCategory = AudioProcessorParameter::genericParameter,
                         std::function<String (float value, int maximumStringLength)> stringFromValue = nullptr,
                         std::function<float (const String& text)> valueFromString = nullptr)
        : AudioParameterFloat (parameterID,
                               parameterName,
                               std::move (normalisableRange),
                               defaultValue,
                               AudioParameterFloatAttributes().withLabel (parameterLabel)
                                                              .withCategory (parameterCategory)
                                                              .withStringFromValueFunction (std::move (stringFromValue))
                                                              .withValueFromStringFunction (std::move (valueFromString)))
    {
    }

    AudioParameterFloat (const ParameterID& parameterID,
                         const String& parameterName,
                         float minValue,
                         float maxValue,
                         float defaultValue);

    ~AudioParameterFloat() override;

    float get() const noexcept                  { return value; }

    operator float() const noexcept             { return value; }

    AudioParameterFloat& operator= (float newValue);

    const NormalisableRange<float>& getNormalisableRange() const override   { return range; }

    NormalisableRange<float> range;
 
protected:
    virtual void valueChanged (float newValue);
 
private:
    //==============================================================================
    float getValue() const override;
    void setValue (float newValue) override;
    float getDefaultValue() const override;
    int getNumSteps() const override;
    String getText (float, int) const override;
    float getValueForText (const String&) const override;
 
    std::atomic<float> value;
    const float valueDefault;
    std::function<String (float, int)> stringFromValueFunction;
    std::function<float (const String&)> valueFromStringFunction;
 
    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (AudioParameterFloat)
};
 
} // namespace juce