NeuralSynthEd/PluginEditor.h

#pragma once
#include <JuceHeader.h>
class TwoOscAudioProcessor;

// ===== Retro 70s LookAndFeel for rotary knobs =====
class RetroLookAndFeel : public juce::LookAndFeel_V4
{
public:
    RetroLookAndFeel()
    {
        setColour (juce::Slider::textBoxTextColourId, juce::Colours::white.withAlpha (0.9f));
        setColour (juce::Slider::textBoxOutlineColourId, juce::Colours::transparentBlack);
    }

    void drawRotarySlider (juce::Graphics& g, int x, int y, int w, int h,
                           float sliderPosProportional,
                           float /*rotaryStartAngle*/, float /*rotaryEndAngle*/,
                           juce::Slider& /*slider*/) override
    {
        const float size   = (float) juce::jmin (w, h);
        const float r      = size * 0.5f;
        const juce::Point<float> c { x + w * 0.5f, y + h * 0.5f };
        const float bezelR = r * 0.98f;
        const float faceR  = r * 0.78f;
        const float capR   = r * 0.46f;

        // SW -> SE 270° clockwise sweep (min at bottom-left)
        const float start = juce::MathConstants<float>::pi * 0.75f; // 135°
        const float sweep = juce::MathConstants<float>::pi * 1.5f;  // 270°
        const float ang   = start + sliderPosProportional * sweep;

        g.setColour (juce::Colour::fromRGB (12,12,12));
        g.fillEllipse (c.x - bezelR, c.y - bezelR, bezelR*2, bezelR*2);
        g.setColour (juce::Colours::white.withAlpha (0.06f));
        g.drawEllipse (c.x - bezelR, c.y - bezelR, bezelR*2, bezelR*2, 1.2f);

        juce::ColourGradient faceGrad (juce::Colour::fromRGB (34,34,34), c.x, c.y - faceR,
                                       juce::Colour::fromRGB (22,22,22), c.x, c.y + faceR, false);
        g.setGradientFill (faceGrad);
        g.fillEllipse (c.x - faceR, c.y - faceR, faceR*2, faceR*2);

        g.setColour (juce::Colours::white.withAlpha (0.25f));
        const int ticks = 9;
        for (int i = 0; i < ticks; ++i)
        {
            const float t  = (float) i / (ticks - 1);
            const float aa = start + t * sweep;
            const float r1 = faceR * 0.92f, r2 = faceR * 1.04f;
            g.drawLine (c.x + r1*std::cos(aa), c.y + r1*std::sin(aa),
                        c.x + r2*std::cos(aa), c.y + r2*std::sin(aa),
                        (i % 2 == 0) ? 1.5f : 1.0f);
        }

        juce::ColourGradient capGrad (juce::Colour::fromRGB (210,210,210), c.x - capR*0.4f, c.y - capR*0.6f,
                                      juce::Colour::fromRGB (160,160,160), c.x + capR*0.6f, c.y + capR*0.6f, true);
        g.setGradientFill (capGrad);
        g.fillEllipse (c.x - capR, c.y - capR, capR*2, capR*2);

        g.setColour (juce::Colours::white.withAlpha (0.95f));
        juce::Point<float> tip   { c.x + faceR*0.9f * std::cos (ang),   c.y + faceR*0.9f * std::sin (ang) };
        juce::Point<float> inner { c.x + (capR+2.0f) * std::cos (ang),  c.y + (capR+2.0f) * std::sin (ang) };
        g.drawLine (inner.x, inner.y, tip.x, tip.y, juce::jlimit (1.2f, 2.0f, r * 0.06f));
    }
};

//==============================================================================

class TwoOscAudioProcessorEditor : public juce::AudioProcessorEditor
{
public:
    explicit TwoOscAudioProcessorEditor (TwoOscAudioProcessor&);
    ~TwoOscAudioProcessorEditor() override;

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

private:
    TwoOscAudioProcessor& processor;

    // Header
    juce::Label title;

    // Preset header: display + button that opens flyout menu
    juce::Label      presetDisplay;   // shows "Category - Name"
    juce::TextButton browseBtn { "Browse…" };

    // Controls
    juce::ComboBox oscA, oscB;
    juce::Slider   mix, detune, cutoff, reso, envAmt;
    juce::Slider   aA, dA, sA, rA, aF, dF, sF, rF;
    juce::Slider   masterGain;

    // NEW: LFO controls
    juce::Slider   lfoRate, lfoDepth; // lfoDepth mapped to lfoToCut (octaves)

    // Captions above knobs
    juce::Label lOscA, lOscB;
    juce::Label lMix, lDetune, lCutoff, lReso, lEnv;
    juce::Label lAA, lDA, lSA, lRA, lAF, lDF, lSF, lRF, lMaster;
    juce::Label lLfoRate, lLfoDepth;

    using CA = juce::AudioProcessorValueTreeState::ComboBoxAttachment;
    using SA = juce::AudioProcessorValueTreeState::SliderAttachment;

    std::unique_ptr<CA> aOscA, aOscB;
    std::unique_ptr<SA> aMix, aDetune, aCutoff, aReso, aEnv;
    std::unique_ptr<SA> aAA, aDA, aSA, aRA, aAF, aDF, aSF, aRF;
    std::unique_ptr<SA> aMaster;

    // NEW: attachments for LFO
    std::unique_ptr<SA> aLfoRate, aLfoDepth;

    RetroLookAndFeel retroLNF;

    // Helpers
    void styleKnob (juce::Slider& s);
    void styleLabel (juce::Label& l);
    void addLabeled (juce::Component& c, juce::Label& label, const juce::String& text);
    void showPresetPopup();
    void updatePresetDisplay();

    // Uniform sizing / spacing (smaller UI)
    static constexpr int knobSize   = 60;  // was 72
    static constexpr int headerH    = 48;  // was 56
    static constexpr int captionH   = 16;
    static constexpr int gap        = 10;  // was 12

    // Bounds of the framed "preset information screen" (drawn in paint)
    juce::Rectangle<int> presetBarBounds;

    // Background group rectangles (drawn in paint, set in resized)
    juce::Rectangle<int> groupCutResBounds; // Cutoff + Reso
    juce::Rectangle<int> groupMixDetBounds; // Mix + Detune
    juce::Rectangle<int> groupAmpBounds;    // Amp A/D/S/R
    juce::Rectangle<int> groupLfoBounds;    // LFO Rate + Depth

    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (TwoOscAudioProcessorEditor)
};