tracktion_VCA.h

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 /*
    ,--.                     ,--.     ,--.  ,--.
  ,-'  '-.,--.--.,--,--.,---.|  |,-.,-'  '-.`--' ,---. ,--,--,      Copyright 2024
  '-.  .-'|  .--' ,-.  | .--'|     /'-.  .-',--.| .-. ||      \   Tracktion Software
    |  |  |  |  \ '-'  \ `--.|  \  \  |  |  |  |' '-' '|  ||  |       Corporation
    `---' `--'   `--`--'`---'`--'`--' `---' `--' `---' `--''--'    www.tracktion.com
 
    Tracktion Engine uses a GPL/commercial licence - see LICENCE.md for details.
*/
 
namespace tracktion { inline namespace engine
{
 
class VCAPlugin   : public Plugin
{
public:
    VCAPlugin (PluginCreationInfo);
    ~VCAPlugin() override;
 
    static juce::ValueTree create();
 
    //==============================================================================
    float getSliderPos() const;
    void setVolumeDb (float dB);
    float getVolumeDb() const;
    void setSliderPos (float position);
    void muteOrUnmute();
 
    float updateAutomationStreamAndGetVolumeDb (TimePosition);
 
    //==============================================================================
    static const char* xmlTypeName;
 
    juce::String getName() const override               { return TRANS("VCA"); }
    juce::String getSelectableDescription() override    { return getName(); }
    juce::String getPluginType() override               { return xmlTypeName; }
    bool canBeAddedToClip() override                    { return false; }
    bool canBeAddedToRack() override                    { return false; }
    bool canBeAddedToFolderTrack()   override           { return true;  }
    bool canBeMoved() override;
    bool needsConstantBufferSize() override             { return false; }
 
    void initialise (const PluginInitialisationInfo&) override;
    void deinitialise() override;
    void applyToBuffer (const PluginRenderContext&) override;
 
    void restorePluginStateFromValueTree (const juce::ValueTree&) override;
 
    juce::CachedValue<float> volumeValue;
    AutomatableParameter::Ptr volParam;
 
private:
    float lastVolumeBeforeMute = 0.0f;
 
    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (VCAPlugin)
};
 
}} // namespace tracktion { inline namespace engine