#pragma once

#include <JuceHeader.h>
#include "../Resources.h"
#include "../Params.h"

namespace serum
{

// ===========================================================================
// Approximate filter frequency-response view (magnitude vs log frequency).
// ===========================================================================
class FilterDisplay : public juce::Component,
                      public juce::SettableTooltipClient
{
public:
    FilterDisplay() { setTooltip ("Approximate response preview; slope, drive and modulation are not modelled."); }
    void setParams (int type, float cutoff, float res, float drive, int slope);
    void setEnabled (bool e) { if (enabled != e) { enabled = e; repaint(); } }

    void paint (juce::Graphics& g) override;

    static float magnitude (float freqHz, float cutoffHz, float res, int type);

private:
    int   type = 0;
    float cutoff = 0.5f, res = 0.0f, drive = 0.0f;
    int   slope = 2;
    bool  enabled = true;
};

} // namespace serum