9c5b5a3957
- Real-time FFT spectrum analyzer drawn behind EQ curves - Makeup gain knob (+/- 24 dB) after limiter - Draggable signal chain panel: reorder Master Gain / Limiter / Makeup Gain - Chain order saved/restored with DAW session - Scaled fonts in signal chain panel Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
77 sor
2.7 KiB
C++
77 sor
2.7 KiB
C++
#pragma once
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#include <JuceHeader.h>
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#include "EQBand.h"
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class EQCurveDisplay : public juce::Component
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{
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public:
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struct Listener
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{
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virtual ~Listener() = default;
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virtual void bandAdded (int index, float freq, float gainDb) = 0;
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virtual void bandRemoved (int index) = 0;
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virtual void bandChanged (int index, const EQBand& band) = 0;
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virtual void selectedBandChanged (int index) = 0;
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};
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EQCurveDisplay();
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void setListener (Listener* l) { listener = l; }
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void setBands (const std::vector<EQBand>& bands);
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void setMagnitudeResponse (const std::vector<float>& magnitudesDb, double sampleRate, int fftSize);
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void setSpectrum (const float* data, int numBins, double sampleRate, int fftSize);
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int getSelectedBandIndex() const { return selectedBand; }
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void setSelectedBand (int index);
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void paint (juce::Graphics& g) override;
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void mouseDown (const juce::MouseEvent& e) override;
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void mouseDrag (const juce::MouseEvent& e) override;
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void mouseUp (const juce::MouseEvent& e) override;
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void mouseDoubleClick (const juce::MouseEvent& e) override;
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void mouseWheelMove (const juce::MouseEvent& e, const juce::MouseWheelDetails& w) override;
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private:
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std::vector<EQBand> bands;
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std::vector<float> magnitudeResponseDb;
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std::vector<float> spectrumDb;
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double spectrumSampleRate = 44100.0;
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int spectrumFftSize = 2048;
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double responseSampleRate = 44100.0;
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int responseFftSize = 8192;
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int selectedBand = -1;
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int draggedBand = -1;
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Listener* listener = nullptr;
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static constexpr float minFreq = 20.0f;
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static constexpr float maxFreq = 20000.0f;
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static constexpr float minDb = -24.0f;
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static constexpr float maxDb = 24.0f;
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// Node colours (8 distinct colours for up to 8 bands)
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static inline const juce::Colour nodeColours[8] = {
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juce::Colour (0xffff6644), // orange-red
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juce::Colour (0xff44bbff), // sky blue
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juce::Colour (0xffff44aa), // pink
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juce::Colour (0xff44ff88), // green
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juce::Colour (0xffffff44), // yellow
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juce::Colour (0xffaa44ff), // purple
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juce::Colour (0xff44ffff), // cyan
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juce::Colour (0xffff8844), // orange
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};
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juce::Rectangle<float> getPlotArea() const;
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float freqToX (float freq) const;
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float xToFreq (float x) const;
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float dbToY (float db) const;
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float yToDb (float y) const;
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void drawGrid (juce::Graphics& g);
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void drawSpectrum (juce::Graphics& g);
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void drawResponseCurve (juce::Graphics& g);
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void drawPerBandCurves (juce::Graphics& g);
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void drawNodes (juce::Graphics& g);
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int findNodeAt (float x, float y, float radius = 14.0f) const;
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (EQCurveDisplay)
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};
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