/* ============================================================================== This file is part of the JUCE library. Copyright (c) 2020 - 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 6 End-User License Agreement and JUCE Privacy Policy (both effective as of the 16th June 2020). End User License Agreement: www.juce.com/juce-6-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 { AudioParameterInt::AudioParameterInt (const String& idToUse, const String& nameToUse, int minValue, int maxValue, int def, const String& labelToUse, std::function stringFromInt, std::function intFromString) : RangedAudioParameter (idToUse, nameToUse, labelToUse), range ([minValue, maxValue] { NormalisableRange rangeWithInterval { (float) minValue, (float) maxValue, [] (float start, float end, float v) { return jlimit (start, end, v * (end - start) + start); }, [] (float start, float end, float v) { return jlimit (0.0f, 1.0f, (v - start) / (end - start)); }, [] (float start, float end, float v) { return (float) roundToInt (juce::jlimit (start, end, v)); } }; rangeWithInterval.interval = 1.0f; return rangeWithInterval; }()), value ((float) def), defaultValue (convertTo0to1 ((float) def)), stringFromIntFunction (stringFromInt), intFromStringFunction (intFromString) { jassert (minValue < maxValue); // must have a non-zero range of values! if (stringFromIntFunction == nullptr) stringFromIntFunction = [] (int v, int) { return String (v); }; if (intFromStringFunction == nullptr) intFromStringFunction = [] (const String& text) { return text.getIntValue(); }; } AudioParameterInt::~AudioParameterInt() { #if __cpp_lib_atomic_is_always_lock_free static_assert (std::atomic::is_always_lock_free, "AudioParameterInt requires a lock-free std::atomic"); #endif } float AudioParameterInt::getValue() const { return convertTo0to1 (value); } void AudioParameterInt::setValue (float newValue) { value = convertFrom0to1 (newValue); valueChanged (get()); } float AudioParameterInt::getDefaultValue() const { return defaultValue; } int AudioParameterInt::getNumSteps() const { return ((int) getNormalisableRange().getRange().getLength()) + 1; } float AudioParameterInt::getValueForText (const String& text) const { return convertTo0to1 ((float) intFromStringFunction (text)); } String AudioParameterInt::getText (float v, int length) const { return stringFromIntFunction ((int) convertFrom0to1 (v), length); } void AudioParameterInt::valueChanged (int) {} AudioParameterInt& AudioParameterInt::operator= (int newValue) { if (get() != newValue) setValueNotifyingHost (convertTo0to1 ((float) newValue)); return *this; } //============================================================================== //============================================================================== #if JUCE_UNIT_TESTS struct AudioParameterIntTests : public UnitTest { AudioParameterIntTests() : UnitTest ("AudioParameterInt", UnitTestCategories::audioProcessorParameters) {} void runTest() override { beginTest ("Three options switches at the correct points"); { AudioParameterInt intParam ({}, {}, 1, 3, 1); intParam.setValueNotifyingHost (0.0f); expectEquals (intParam.get(), 1); intParam.setValueNotifyingHost (0.2f); expectEquals (intParam.get(), 1); intParam.setValueNotifyingHost (0.3f); expectEquals (intParam.get(), 2); intParam.setValueNotifyingHost (0.7f); expectEquals (intParam.get(), 2); intParam.setValueNotifyingHost (0.8f); expectEquals (intParam.get(), 3); intParam.setValueNotifyingHost (1.0f); expectEquals (intParam.get(), 3); } beginTest ("Out-of-bounds input"); { AudioParameterInt intParam ({}, {}, -1, 2, 0); intParam.setValueNotifyingHost (-0.5f); expectEquals (intParam.get(), -1); intParam.setValueNotifyingHost (1.5f); expectEquals (intParam.get(), 2); intParam = -5; expectEquals (intParam.get(), -1); intParam = 5; expectEquals (intParam.get(), 2); } } }; static AudioParameterIntTests audioParameterIntTests; #endif } // namespace juce