108 lines
4.2 KiB
C++
108 lines
4.2 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2017 - ROLI Ltd.
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JUCE is an open source library subject to commercial or open-source
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licensing.
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By using JUCE, you agree to the terms of both the JUCE 5 End-User License
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Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
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27th April 2017).
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End User License Agreement: www.juce.com/juce-5-licence
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Privacy Policy: www.juce.com/juce-5-privacy-policy
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Or: You may also use this code under the terms of the GPL v3 (see
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www.gnu.org/licenses).
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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namespace juce
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{
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/**
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Provides a class of AudioProcessorParameter that can be used as an
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integer value with a given range.
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@see AudioParameterFloat, AudioParameterBool, AudioParameterChoice
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@tags{Audio}
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*/
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class JUCE_API AudioParameterInt : public AudioProcessorParameterWithID
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{
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public:
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/** Creates a AudioParameterInt with the specified parameters.
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@param parameterID The parameter ID to use
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@param name The parameter name to use
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@param minValue The minimum parameter value
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@param maxValue The maximum parameter value
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@param defaultValue The default value
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@param label An optional label for the parameter's value
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@param stringFromInt An optional lambda function that converts a int
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value to a string with a maximum length. This may
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be used by hosts to display the parameter's value.
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@param intFromString An optional lambda function that parses a string
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and converts it into an int. Some hosts use this
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to allow users to type in parameter values.
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*/
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AudioParameterInt (const String& parameterID, const String& name,
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int minValue, int maxValue,
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int defaultValue,
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const String& label = String(),
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std::function<String (int value, int maximumStringLength)> stringFromInt = nullptr,
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std::function<int (const String& text)> intFromString = nullptr);
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/** Destructor. */
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~AudioParameterInt();
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/** Returns the parameter's current value as an integer. */
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int get() const noexcept { return roundToInt (value); }
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/** Returns the parameter's current value as an integer. */
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operator int() const noexcept { return get(); }
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/** Changes the parameter's current value to a new integer.
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The value passed in will be snapped to the permitted range before being used.
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*/
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AudioParameterInt& operator= (int newValue);
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/** Returns the parameter's range. */
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Range<int> getRange() const noexcept { return Range<int> (minValue, maxValue); }
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protected:
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/** Override this method if you are interested in receiving callbacks
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when the parameter value changes.
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*/
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virtual void valueChanged (int newValue);
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private:
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//==============================================================================
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float getValue() const override;
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void setValue (float newValue) override;
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float getDefaultValue() const override;
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int getNumSteps() const override;
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String getText (float, int) const override;
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float getValueForText (const String&) const override;
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int limitRange (int) const noexcept;
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float convertTo0to1 (int) const noexcept;
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int convertFrom0to1 (float) const noexcept;
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const int minValue, maxValue, rangeOfValues;
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float value;
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const float defaultValue;
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std::function<String (int, int)> stringFromIntFunction;
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std::function<int (const String&)> intFromStringFunction;
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (AudioParameterInt)
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};
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} // namespace juce
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