tracktion_LevelMeter.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 LevelMeterPlugin  : public Plugin,
                          private juce::Timer
{
public:
    LevelMeterPlugin (PluginCreationInfo);
    ~LevelMeterPlugin() override;
 
    static juce::ValueTree create();
 
    //==============================================================================
    static const char* getPluginName()              { return NEEDS_TRANS("Level Meter"); }
    static const char* xmlTypeName;
 
    juce::String getName() const override               { return TRANS("Level Meter"); }
    juce::String getPluginType() override               { return xmlTypeName; }
    juce::String getShortName (int) override            { return "Meter"; }
    juce::String getTooltip() override                  { return TRANS("Level meter plugin") + "$levelmeterplugin"; }
    bool canBeDisabled() override                       { return false; }
    bool needsConstantBufferSize() override             { return false; }
    bool shoulMeasureCpuUsage() const noexcept final    { return false; }
 
    int getNumOutputChannelsGivenInputs (int numInputChannels) override     { return juce::jmin (numInputChannels, 2); }
 
    juce::String getSelectableDescription() override                        { return TRANS("Level Meter Plugin"); }
    void initialise (const PluginInitialisationInfo&) override;
    void initialiseWithoutStopping (const PluginInitialisationInfo&) override;
    void deinitialise() override;
    void applyToBuffer (const PluginRenderContext&) override;
    void timerCallback() override;
 
    void restorePluginStateFromValueTree (const juce::ValueTree&) override;
 
    //==============================================================================
    LevelMeasurer measurer;
 
    juce::CachedValue<bool> showMidiActivity;
 
private:
    int controllerTrack = -1;
 
    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (LevelMeterPlugin)
};
 
}} // namespace tracktion { inline namespace engine