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JUCE/modules/juce_audio_processors/utilities/juce_AudioParameterBool.cpp
2019-03-15 14:10:14 +00:00

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/*
==============================================================================
This file is part of the JUCE library.
Copyright (c) 2017 - ROLI Ltd.
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 5 End-User License
Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
27th April 2017).
End User License Agreement: www.juce.com/juce-5-licence
Privacy Policy: www.juce.com/juce-5-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
{
AudioParameterBool::AudioParameterBool (const String& idToUse, const String& nameToUse,
bool def, const String& labelToUse,
std::function<String(bool, int)> stringFromBool,
std::function<bool(const String&)> boolFromString)
: RangedAudioParameter (idToUse, nameToUse, labelToUse),
value (def ? 1.0f : 0.0f),
defaultValue (value),
stringFromBoolFunction (stringFromBool),
boolFromStringFunction (boolFromString)
{
if (stringFromBoolFunction == nullptr)
stringFromBoolFunction = [] (bool v, int) { return v ? TRANS("On") : TRANS("Off"); };
if (boolFromStringFunction == nullptr)
{
StringArray onStrings;
onStrings.add (TRANS("on"));
onStrings.add (TRANS("yes"));
onStrings.add (TRANS("true"));
StringArray offStrings;
offStrings.add (TRANS("off"));
offStrings.add (TRANS("no"));
offStrings.add (TRANS("false"));
boolFromStringFunction = [onStrings, offStrings] (const String& text)
{
String lowercaseText (text.toLowerCase());
for (auto& testText : onStrings)
if (lowercaseText == testText)
return true;
for (auto& testText : offStrings)
if (lowercaseText == testText)
return false;
return text.getIntValue() != 0;
};
}
}
AudioParameterBool::~AudioParameterBool() {}
float AudioParameterBool::getValue() const { return value; }
void AudioParameterBool::setValue (float newValue) { value = newValue; valueChanged (get()); }
float AudioParameterBool::getDefaultValue() const { return defaultValue; }
int AudioParameterBool::getNumSteps() const { return 2; }
bool AudioParameterBool::isDiscrete() const { return true; }
bool AudioParameterBool::isBoolean() const { return true; }
void AudioParameterBool::valueChanged (bool) {}
float AudioParameterBool::getValueForText (const String& text) const
{
return boolFromStringFunction (text) ? 1.0f : 0.0f;
}
String AudioParameterBool::getText (float v, int maximumLength) const
{
return stringFromBoolFunction (v >= 0.5f, maximumLength);
}
AudioParameterBool& AudioParameterBool::operator= (bool newValue)
{
if (get() != newValue)
setValueNotifyingHost (newValue ? 1.0f : 0.0f);
return *this;
}
} // namespace juce