252 lines
12 KiB
C++
252 lines
12 KiB
C++
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/*
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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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// This file contains the implementations of the various AudioParameter[XYZ] classes..
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AudioProcessorParameterWithID::AudioProcessorParameterWithID (const String& idToUse,
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const String& nameToUse,
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const String& labelToUse,
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AudioProcessorParameter::Category categoryToUse)
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: paramID (idToUse), name (nameToUse), label (labelToUse), category (categoryToUse) {}
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AudioProcessorParameterWithID::~AudioProcessorParameterWithID() {}
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String AudioProcessorParameterWithID::getName (int maximumStringLength) const { return name.substring (0, maximumStringLength); }
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String AudioProcessorParameterWithID::getLabel() const { return label; }
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AudioProcessorParameter::Category AudioProcessorParameterWithID::getCategory() const { return category; }
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//==============================================================================
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AudioParameterFloat::AudioParameterFloat (const String& idToUse, const String& nameToUse,
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NormalisableRange<float> r, float def,
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const String& labelToUse, Category categoryToUse,
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std::function<String (float, int)> stringFromValue,
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std::function<float (const String&)> valueFromString)
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: AudioProcessorParameterWithID (idToUse, nameToUse, labelToUse, categoryToUse),
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range (r), value (def), defaultValue (def),
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stringFromValueFunction (stringFromValue),
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valueFromStringFunction (valueFromString)
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{
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if (stringFromValueFunction == nullptr)
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stringFromValueFunction = [] (float v, int length)
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{
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String asText (v, 2);
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return length > 0 ? asText.substring (0, length) : asText;
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};
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if (valueFromStringFunction == nullptr)
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valueFromStringFunction = [] (const String& text) { return text.getFloatValue(); };
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}
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AudioParameterFloat::AudioParameterFloat (String pid, String nm, float minValue, float maxValue, float def)
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: AudioParameterFloat (pid, nm, { minValue, maxValue }, def)
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{
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}
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AudioParameterFloat::~AudioParameterFloat() {}
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float AudioParameterFloat::getValue() const { return range.convertTo0to1 (value); }
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void AudioParameterFloat::setValue (float newValue) { value = range.convertFrom0to1 (newValue); valueChanged (get()); }
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float AudioParameterFloat::getDefaultValue() const { return range.convertTo0to1 (defaultValue); }
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int AudioParameterFloat::getNumSteps() const { return AudioProcessorParameterWithID::getNumSteps(); }
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String AudioParameterFloat::getText (float v, int length) const { return stringFromValueFunction (range.convertFrom0to1 (v), length); }
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float AudioParameterFloat::getValueForText (const String& text) const { return range.convertTo0to1 (valueFromStringFunction (text)); }
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void AudioParameterFloat::valueChanged (float) {}
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AudioParameterFloat& AudioParameterFloat::operator= (float newValue)
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{
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if (value != newValue)
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setValueNotifyingHost (range.convertTo0to1 (newValue));
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return *this;
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}
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//==============================================================================
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AudioParameterInt::AudioParameterInt (const String& idToUse, const String& nameToUse,
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int mn, int mx, int def,
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const String& labelToUse,
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std::function<String (int, int)> stringFromInt,
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std::function<int (const String&)> intFromString)
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: AudioProcessorParameterWithID (idToUse, nameToUse, labelToUse),
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minValue (mn), maxValue (mx), rangeOfValues (maxValue - minValue),
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value ((float) def),
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defaultValue (convertTo0to1 (def)),
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stringFromIntFunction (stringFromInt),
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intFromStringFunction (intFromString)
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{
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jassert (minValue < maxValue); // must have a non-zero range of values!
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if (stringFromIntFunction == nullptr)
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stringFromIntFunction = [] (int v, int) { return String (v); };
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if (intFromStringFunction == nullptr)
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intFromStringFunction = [] (const String& text) { return text.getIntValue(); };
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}
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AudioParameterInt::~AudioParameterInt() {}
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int AudioParameterInt::limitRange (int v) const noexcept { return jlimit (minValue, maxValue, v); }
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float AudioParameterInt::convertTo0to1 (int v) const noexcept { return (limitRange (v) - minValue) / (float) rangeOfValues; }
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int AudioParameterInt::convertFrom0to1 (float v) const noexcept { return limitRange (roundToInt ((v * (float) rangeOfValues) + minValue)); }
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float AudioParameterInt::getValue() const { return convertTo0to1 (roundToInt (value)); }
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void AudioParameterInt::setValue (float newValue) { value = (float) convertFrom0to1 (newValue); valueChanged (get()); }
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float AudioParameterInt::getDefaultValue() const { return defaultValue; }
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int AudioParameterInt::getNumSteps() const { return rangeOfValues + 1; }
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float AudioParameterInt::getValueForText (const String& text) const { return convertTo0to1 (intFromStringFunction (text)); }
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String AudioParameterInt::getText (float v, int length) const { return stringFromIntFunction (convertFrom0to1 (v), length); }
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void AudioParameterInt::valueChanged (int) {}
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AudioParameterInt& AudioParameterInt::operator= (int newValue)
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{
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if (get() != newValue)
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setValueNotifyingHost (convertTo0to1 (newValue));
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return *this;
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}
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//==============================================================================
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AudioParameterBool::AudioParameterBool (const String& idToUse, const String& nameToUse,
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bool def, const String& labelToUse,
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std::function<String (bool, int)> stringFromBool,
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std::function<bool (const String&)> boolFromString)
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: AudioProcessorParameterWithID (idToUse, nameToUse, labelToUse),
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value (def ? 1.0f : 0.0f),
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defaultValue (value),
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stringFromBoolFunction (stringFromBool),
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boolFromStringFunction (boolFromString)
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{
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if (stringFromBoolFunction == nullptr)
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stringFromBoolFunction = [] (bool v, int) { return v ? TRANS("On") : TRANS("Off"); };
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if (boolFromStringFunction == nullptr)
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{
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StringArray onStrings;
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onStrings.add (TRANS("on"));
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onStrings.add (TRANS("yes"));
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onStrings.add (TRANS("true"));
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StringArray offStrings;
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offStrings.add (TRANS("off"));
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offStrings.add (TRANS("no"));
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offStrings.add (TRANS("false"));
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boolFromStringFunction = [onStrings, offStrings] (const String& text)
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{
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String lowercaseText (text.toLowerCase());
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for (auto& testText : onStrings)
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if (lowercaseText == testText)
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return true;
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for (auto& testText : offStrings)
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if (lowercaseText == testText)
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return false;
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return text.getIntValue() != 0;
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};
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}
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}
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AudioParameterBool::~AudioParameterBool() {}
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float AudioParameterBool::getValue() const { return value; }
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void AudioParameterBool::setValue (float newValue) { value = newValue; valueChanged (get()); }
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float AudioParameterBool::getDefaultValue() const { return defaultValue; }
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int AudioParameterBool::getNumSteps() const { return 2; }
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bool AudioParameterBool::isDiscrete() const { return true; }
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bool AudioParameterBool::isBoolean() const { return true; }
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void AudioParameterBool::valueChanged (bool) {}
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float AudioParameterBool::getValueForText (const String& text) const
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{
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return boolFromStringFunction (text) ? 1.0f : 0.0f;
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}
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String AudioParameterBool::getText (float v, int maximumLength) const
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{
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return stringFromBoolFunction (v >= 0.5f, maximumLength);
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}
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AudioParameterBool& AudioParameterBool::operator= (bool newValue)
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{
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if (get() != newValue)
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setValueNotifyingHost (newValue ? 1.0f : 0.0f);
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return *this;
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}
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//==============================================================================
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AudioParameterChoice::AudioParameterChoice (const String& idToUse, const String& nameToUse,
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const StringArray& c, int def, const String& labelToUse,
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std::function<String (int, int)> stringFromIndex,
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std::function<int (const String&)> indexFromString)
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: AudioProcessorParameterWithID (idToUse, nameToUse, labelToUse), choices (c),
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value ((float) def),
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maxIndex (choices.size() - 1),
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defaultValue (convertTo0to1 (def)),
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stringFromIndexFunction (stringFromIndex),
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indexFromStringFunction (indexFromString)
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{
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jassert (choices.size() > 0); // you must supply an actual set of items to choose from!
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if (stringFromIndexFunction == nullptr)
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stringFromIndexFunction = [this] (int index, int) { return choices [index]; };
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if (indexFromStringFunction == nullptr)
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indexFromStringFunction = [this] (const String& text) { return choices.indexOf (text); };
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}
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AudioParameterChoice::~AudioParameterChoice() {}
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int AudioParameterChoice::limitRange (int v) const noexcept { return jlimit (0, maxIndex, v); }
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float AudioParameterChoice::convertTo0to1 (int v) const noexcept { return jlimit (0.0f, 1.0f, v / (float) maxIndex); }
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int AudioParameterChoice::convertFrom0to1 (float v) const noexcept { return limitRange (roundToInt (v * (float) maxIndex)); }
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float AudioParameterChoice::getValue() const { return convertTo0to1 (roundToInt (value)); }
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void AudioParameterChoice::setValue (float newValue) { value = (float) convertFrom0to1 (newValue); valueChanged (getIndex()); }
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float AudioParameterChoice::getDefaultValue() const { return defaultValue; }
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int AudioParameterChoice::getNumSteps() const { return choices.size(); }
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bool AudioParameterChoice::isDiscrete() const { return true; }
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float AudioParameterChoice::getValueForText (const String& text) const { return convertTo0to1 (indexFromStringFunction (text)); }
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String AudioParameterChoice::getText (float v, int length) const { return stringFromIndexFunction (convertFrom0to1 (v), length); }
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void AudioParameterChoice::valueChanged (int) {}
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AudioParameterChoice& AudioParameterChoice::operator= (int newValue)
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{
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if (getIndex() != newValue)
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setValueNotifyingHost (convertTo0to1 (newValue));
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return *this;
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}
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} // namespace juce
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