Add Psytrance Visualizer macOS app with Metal rendering
A complete audio-reactive visualizer for psytrance music featuring: Audio Analysis (DSPEngine): - FFT spectrum analysis via Accelerate/vDSP - 64-band Mel spectrogram - Sub-bass energy extraction (<100Hz) - Automatic sidechain pump detection - Harmonic-to-Noise ratio (HNR) calculation - Peak/transient detection 8 Visualization Modes (Metal Shaders): 1. FFT Classic - Frequency spectrum bars with glow 2. Mel Spectrogram - Waterfall display 3. Sub-Bass - Pulsating rings 4. Sidechain Pump - Breathing zoom effect 5. Harmonic/Noise - Geometric vs chaotic particles 6. Mandelbrot - Audio-reactive fractal zoom 7. Tunnel Warp - Infinite tunnel with distortion 8. DMT Geometry - Sacred geometry patterns Features: - Selectable audio input device (BlackHole support) - Configurable buffer size (512/1024) - Reactivity slider for visual intensity - Auto-hiding control panel - Fullscreen support with keyboard shortcuts (1-8, F, ESC) - Persistent settings via UserDefaults - Psytrance-inspired neon/UV color palette
This commit is contained in:
Claude
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//
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// ControlPanel.swift
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// PsytranceVisualizer
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//
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// Auto-hiding control panel with audio and visualization settings
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//
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import AppKit
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import Combine
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/// Delegate protocol for control panel actions
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protocol ControlPanelDelegate: AnyObject {
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func controlPanel(_ panel: ControlPanel, didSelectDevice uid: String)
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func controlPanel(_ panel: ControlPanel, didSelectBufferSize size: Int)
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func controlPanel(_ panel: ControlPanel, didSelectMode mode: VisualizationMode)
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func controlPanel(_ panel: ControlPanel, didChangeReactivity value: Float)
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func controlPanelDidRequestFullscreen(_ panel: ControlPanel)
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}
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/// Auto-hiding control panel overlay
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final class ControlPanel: NSView {
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// MARK: - Properties
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weak var delegate: ControlPanelDelegate?
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private var isVisible = true
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private var hideTimer: Timer?
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private let hideDelay: TimeInterval = 3.0
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private var audioDevices: [AudioDevice] = []
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private var selectedMode: VisualizationMode = .fftClassic
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// MARK: - UI Elements
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private let containerView = NSVisualEffectView()
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private let devicePopup = NSPopUpButton()
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private let bufferSizePopup = NSPopUpButton()
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private let modeSegment = NSSegmentedControl()
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private let reactivitySlider = NSSlider()
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private let reactivityLabel = NSTextField(labelWithString: "Reactivity")
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private let fullscreenButton = NSButton()
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// MARK: - Layout Constants
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private let panelHeight: CGFloat = 60
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private let padding: CGFloat = 12
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private let elementHeight: CGFloat = 24
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// MARK: - Initialization
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override init(frame frameRect: NSRect) {
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super.init(frame: frameRect)
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setupUI()
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setupConstraints()
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startHideTimer()
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}
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required init?(coder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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// MARK: - Setup
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private func setupUI() {
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// Container with vibrancy effect
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containerView.material = .hudWindow
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containerView.blendingMode = .behindWindow
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containerView.state = .active
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containerView.wantsLayer = true
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containerView.layer?.cornerRadius = 12
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containerView.layer?.masksToBounds = true
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addSubview(containerView)
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// Device popup
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devicePopup.target = self
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devicePopup.action = #selector(deviceChanged)
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devicePopup.controlSize = .small
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devicePopup.font = .systemFont(ofSize: 11)
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containerView.addSubview(devicePopup)
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// Buffer size popup
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bufferSizePopup.target = self
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bufferSizePopup.action = #selector(bufferSizeChanged)
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bufferSizePopup.controlSize = .small
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bufferSizePopup.font = .systemFont(ofSize: 11)
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bufferSizePopup.addItems(withTitles: ["512", "1024"])
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bufferSizePopup.selectItem(withTitle: "1024")
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containerView.addSubview(bufferSizePopup)
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// Mode segment control
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modeSegment.segmentCount = 8
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for mode in VisualizationMode.allCases {
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modeSegment.setLabel(mode.shortcut, forSegment: mode.rawValue - 1)
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modeSegment.setToolTip(mode.displayName, forSegment: mode.rawValue - 1)
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}
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modeSegment.selectedSegment = 0
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modeSegment.target = self
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modeSegment.action = #selector(modeChanged)
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modeSegment.controlSize = .small
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modeSegment.segmentStyle = .capsule
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containerView.addSubview(modeSegment)
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// Reactivity label
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reactivityLabel.font = .systemFont(ofSize: 10)
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reactivityLabel.textColor = .secondaryLabelColor
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containerView.addSubview(reactivityLabel)
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// Reactivity slider
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reactivitySlider.minValue = 0.0
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reactivitySlider.maxValue = 1.0
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reactivitySlider.doubleValue = 0.5
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reactivitySlider.target = self
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reactivitySlider.action = #selector(reactivityChanged)
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reactivitySlider.controlSize = .small
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containerView.addSubview(reactivitySlider)
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// Fullscreen button
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fullscreenButton.title = "⛶"
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fullscreenButton.bezelStyle = .accessoryBarAction
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fullscreenButton.target = self
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fullscreenButton.action = #selector(fullscreenClicked)
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fullscreenButton.toolTip = "Toggle Fullscreen (F)"
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containerView.addSubview(fullscreenButton)
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// Set colors
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applyPsytranceTheme()
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}
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private func applyPsytranceTheme() {
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// Custom appearance for psytrance aesthetic
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containerView.appearance = NSAppearance(named: .darkAqua)
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}
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private func setupConstraints() {
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containerView.translatesAutoresizingMaskIntoConstraints = false
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devicePopup.translatesAutoresizingMaskIntoConstraints = false
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bufferSizePopup.translatesAutoresizingMaskIntoConstraints = false
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modeSegment.translatesAutoresizingMaskIntoConstraints = false
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reactivityLabel.translatesAutoresizingMaskIntoConstraints = false
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reactivitySlider.translatesAutoresizingMaskIntoConstraints = false
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fullscreenButton.translatesAutoresizingMaskIntoConstraints = false
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NSLayoutConstraint.activate([
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// Container
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containerView.leadingAnchor.constraint(equalTo: leadingAnchor, constant: padding),
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containerView.trailingAnchor.constraint(equalTo: trailingAnchor, constant: -padding),
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containerView.bottomAnchor.constraint(equalTo: bottomAnchor, constant: -padding),
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containerView.heightAnchor.constraint(equalToConstant: panelHeight),
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// Device popup
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devicePopup.leadingAnchor.constraint(equalTo: containerView.leadingAnchor, constant: padding),
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devicePopup.centerYAnchor.constraint(equalTo: containerView.centerYAnchor),
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devicePopup.widthAnchor.constraint(equalToConstant: 150),
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// Buffer size popup
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bufferSizePopup.leadingAnchor.constraint(equalTo: devicePopup.trailingAnchor, constant: 8),
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bufferSizePopup.centerYAnchor.constraint(equalTo: containerView.centerYAnchor),
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bufferSizePopup.widthAnchor.constraint(equalToConstant: 60),
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// Mode segment
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modeSegment.centerXAnchor.constraint(equalTo: containerView.centerXAnchor),
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modeSegment.centerYAnchor.constraint(equalTo: containerView.centerYAnchor),
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// Reactivity label
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reactivityLabel.trailingAnchor.constraint(equalTo: reactivitySlider.leadingAnchor, constant: -4),
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reactivityLabel.centerYAnchor.constraint(equalTo: containerView.centerYAnchor),
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// Reactivity slider
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reactivitySlider.trailingAnchor.constraint(equalTo: fullscreenButton.leadingAnchor, constant: -padding),
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reactivitySlider.centerYAnchor.constraint(equalTo: containerView.centerYAnchor),
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reactivitySlider.widthAnchor.constraint(equalToConstant: 80),
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// Fullscreen button
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fullscreenButton.trailingAnchor.constraint(equalTo: containerView.trailingAnchor, constant: -padding),
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fullscreenButton.centerYAnchor.constraint(equalTo: containerView.centerYAnchor),
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])
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}
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// MARK: - Public Methods
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/// Updates the list of available audio devices
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func updateDevices(_ devices: [AudioDevice], selectedUID: String?) {
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audioDevices = devices
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devicePopup.removeAllItems()
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for device in devices {
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devicePopup.addItem(withTitle: device.name)
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devicePopup.lastItem?.representedObject = device.uid
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}
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if let uid = selectedUID,
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let index = devices.firstIndex(where: { $0.uid == uid }) {
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devicePopup.selectItem(at: index)
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}
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}
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/// Updates the selected buffer size
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func updateBufferSize(_ size: Int) {
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bufferSizePopup.selectItem(withTitle: "\(size)")
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}
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/// Updates the selected visualization mode
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func updateMode(_ mode: VisualizationMode) {
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selectedMode = mode
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modeSegment.selectedSegment = mode.rawValue - 1
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}
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/// Updates the reactivity slider
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func updateReactivity(_ value: Float) {
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reactivitySlider.doubleValue = Double(value)
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}
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/// Shows the control panel
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func show(animated: Bool = true) {
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guard !isVisible else { return }
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isVisible = true
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if animated {
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NSAnimationContext.runAnimationGroup { context in
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context.duration = 0.3
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self.animator().alphaValue = 1.0
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}
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} else {
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alphaValue = 1.0
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}
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startHideTimer()
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}
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/// Hides the control panel
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func hide(animated: Bool = true) {
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guard isVisible else { return }
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isVisible = false
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hideTimer?.invalidate()
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if animated {
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NSAnimationContext.runAnimationGroup { context in
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context.duration = 0.3
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self.animator().alphaValue = 0.0
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}
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} else {
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alphaValue = 0.0
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}
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}
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/// Resets the hide timer (call on mouse movement)
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func resetHideTimer() {
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show()
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startHideTimer()
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}
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// MARK: - Private Methods
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private func startHideTimer() {
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hideTimer?.invalidate()
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hideTimer = Timer.scheduledTimer(withTimeInterval: hideDelay, repeats: false) { [weak self] _ in
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self?.hide()
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}
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}
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// MARK: - Actions
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@objc private func deviceChanged() {
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guard let uid = devicePopup.selectedItem?.representedObject as? String else { return }
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delegate?.controlPanel(self, didSelectDevice: uid)
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}
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@objc private func bufferSizeChanged() {
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guard let title = bufferSizePopup.selectedItem?.title,
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let size = Int(title) else { return }
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delegate?.controlPanel(self, didSelectBufferSize: size)
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}
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@objc private func modeChanged() {
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let modeIndex = modeSegment.selectedSegment + 1
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guard let mode = VisualizationMode(rawValue: modeIndex) else { return }
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selectedMode = mode
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delegate?.controlPanel(self, didSelectMode: mode)
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}
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@objc private func reactivityChanged() {
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let value = Float(reactivitySlider.doubleValue)
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delegate?.controlPanel(self, didChangeReactivity: value)
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}
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@objc private func fullscreenClicked() {
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delegate?.controlPanelDidRequestFullscreen(self)
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}
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// MARK: - Mouse Tracking
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override func updateTrackingAreas() {
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super.updateTrackingAreas()
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// Remove existing tracking areas
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for area in trackingAreas {
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removeTrackingArea(area)
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}
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// Add new tracking area
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let options: NSTrackingArea.Options = [.mouseEnteredAndExited, .mouseMoved, .activeAlways]
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let trackingArea = NSTrackingArea(rect: bounds, options: options, owner: self, userInfo: nil)
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addTrackingArea(trackingArea)
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}
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override func mouseMoved(with event: NSEvent) {
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super.mouseMoved(with: event)
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resetHideTimer()
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}
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override func mouseEntered(with event: NSEvent) {
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super.mouseEntered(with: event)
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show()
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}
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}
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