juce_AudioParameterInt.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 AudioParameterIntAttributes : public RangedAudioParameterAttributes<AudioParameterIntAttributes, int> {};
 
//==============================================================================
class JUCE_API  AudioParameterInt  : public RangedAudioParameter
{
public:
    AudioParameterInt (const ParameterID& parameterID,
                       const String& parameterName,
                       int minValue,
                       int maxValue,
                       int defaultValue,
                       const AudioParameterIntAttributes& attributes = {});

    [[deprecated ("Prefer the signature taking an Attributes argument")]]
    AudioParameterInt (const ParameterID& parameterID,
                       const String& parameterName,
                       int minValue,
                       int maxValue,
                       int defaultValueIn,
                       const String& parameterLabel,
                       std::function<String (int value, int maximumStringLength)> stringFromInt = nullptr,
                       std::function<int (const String& text)> intFromString = nullptr)
        : AudioParameterInt (parameterID,
                             parameterName,
                             minValue,
                             maxValue,
                             defaultValueIn,
                             AudioParameterIntAttributes().withLabel (parameterLabel)
                                                          .withStringFromValueFunction (std::move (stringFromInt))
                                                          .withValueFromStringFunction (std::move (intFromString)))
    {
    }

    ~AudioParameterInt() override;

    int get() const noexcept                    { return roundToInt (value.load()); }

    operator int() const noexcept               { return get(); }

    AudioParameterInt& operator= (int newValue);

    Range<int> getRange() const noexcept        { return { (int) getNormalisableRange().start, (int) getNormalisableRange().end }; }

    const NormalisableRange<float>& getNormalisableRange() const override   { return range; }
 
protected:
    virtual void valueChanged (int 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;
 
    const NormalisableRange<float> range;
    std::atomic<float> value;
    const float defaultValue;
    std::function<String (int, int)> stringFromIntFunction;
    std::function<int (const String&)> intFromStringFunction;
 
    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (AudioParameterInt)
};
 
} // namespace juce