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Created July 31, 2023 23:10
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/*
==============================================================================
This file is part of the JUCE tutorials.
Copyright (c) 2020 - Raw Material Software Limited
The code included in this file is provided under the terms of the ISC license
http://www.isc.org/downloads/software-support-policy/isc-license. Permission
To use, copy, modify, and/or distribute this software for any purpose with or
without fee is hereby granted provided that the above copyright notice and
this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES,
WHETHER EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR
PURPOSE, ARE DISCLAIMED.
==============================================================================
*/
/*******************************************************************************
The block below describes the properties of this PIP. A PIP is a short snippet
of code that can be read by the Projucer and used to generate a JUCE project.
BEGIN_JUCE_PIP_METADATA
name: SynthLevelControlTutorial
version: 2.0.0
vendor: JUCE
website: http://juce.com
description: Synthesiser with level control.
dependencies: juce_audio_basics, juce_audio_devices, juce_audio_formats,
juce_audio_processors, juce_audio_utils, juce_core,
juce_data_structures, juce_events, juce_graphics,
juce_gui_basics, juce_gui_extra
exporters: xcode_mac, vs2019, linux_make
type: Component
mainClass: MainContentComponent
useLocalCopy: 1
END_JUCE_PIP_METADATA
*******************************************************************************/
#pragma once
//==============================================================================
class MainContentComponent : public juce::AudioAppComponent
{
public:
MainContentComponent()
{
levelSlider.setRange (0.0, 0.25);
levelSlider.onValueChange = [this]()
{
gainLevel.store(levelSlider.getValue());
};
levelSlider.setTextBoxStyle (juce::Slider::TextBoxRight, false, 100, 20);
levelLabel.setText ("Noise Level", juce::dontSendNotification);
addAndMakeVisible (levelSlider);
addAndMakeVisible (levelLabel);
setSize (600, 100);
setAudioChannels (0, 2);
}
~MainContentComponent() override
{
shutdownAudio();
}
void prepareToPlay (int, double) override {}
//! [getNextAudioBlock full]
void getNextAudioBlock (const juce::AudioSourceChannelInfo& bufferToFill) override
{
auto level = gainLevel.load();
auto levelScale = level * 2.0f;
for (auto channel = 0; channel < bufferToFill.buffer->getNumChannels(); ++channel)
{
auto* buffer = bufferToFill.buffer->getWritePointer (channel, bufferToFill.startSample);
for (auto sample = 0; sample < bufferToFill.numSamples; ++sample)
buffer[sample] = random.nextFloat() * levelScale - level;
}
}
//! [getNextAudioBlock full]
void releaseResources() override {}
void resized() override
{
levelLabel .setBounds (10, 10, 90, 20);
levelSlider.setBounds (100, 10, getWidth() - 110, 20);
}
private:
juce::Random random;
juce::Slider levelSlider;
juce::Label levelLabel;
std::atomic<float> gainLevel{0.0f};
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (MainContentComponent)
};
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