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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// AppDelegate.swift
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// PsytranceVisualizer
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//
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// Application delegate handling app lifecycle
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//
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import AppKit
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import AVFoundation
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/// Application delegate
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final class AppDelegate: NSObject, NSApplicationDelegate {
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// MARK: - Properties
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private var mainWindowController: MainWindowController?
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// MARK: - App Lifecycle
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func applicationDidFinishLaunching(_ notification: Notification) {
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// Request microphone permission
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requestMicrophonePermission()
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// Create and show main window
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mainWindowController = MainWindowController()
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mainWindowController?.showWindow(nil)
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mainWindowController?.window?.makeKeyAndOrderFront(nil)
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// Activate the application
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NSApp.activate(ignoringOtherApps: true)
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print("[AppDelegate] Application launched")
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}
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func applicationWillTerminate(_ notification: Notification) {
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// Save settings
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SettingsManager.shared.saveNow()
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print("[AppDelegate] Application terminating")
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}
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func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool {
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return true
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}
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func applicationSupportsSecureRestorableState(_ app: NSApplication) -> Bool {
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return true
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}
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// MARK: - Permissions
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private func requestMicrophonePermission() {
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switch AVCaptureDevice.authorizationStatus(for: .audio) {
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case .authorized:
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print("[AppDelegate] Microphone access already authorized")
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case .notDetermined:
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AVCaptureDevice.requestAccess(for: .audio) { granted in
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if granted {
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print("[AppDelegate] Microphone access granted")
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} else {
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print("[AppDelegate] Microphone access denied")
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self.showMicrophonePermissionAlert()
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}
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}
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case .denied, .restricted:
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print("[AppDelegate] Microphone access denied or restricted")
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showMicrophonePermissionAlert()
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@unknown default:
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break
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}
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}
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private func showMicrophonePermissionAlert() {
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DispatchQueue.main.async {
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let alert = NSAlert()
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alert.messageText = "Microphone Access Required"
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alert.informativeText = "Psytrance Visualizer needs access to your audio input to visualize music. Please enable microphone access in System Preferences > Security & Privacy > Privacy > Microphone."
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alert.alertStyle = .warning
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alert.addButton(withTitle: "Open System Preferences")
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alert.addButton(withTitle: "Cancel")
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if alert.runModal() == .alertFirstButtonReturn {
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if let url = URL(string: "x-apple.systempreferences:com.apple.preference.security?Privacy_Microphone") {
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NSWorkspace.shared.open(url)
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}
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}
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}
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}
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// MARK: - Menu Actions
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@IBAction func showAbout(_ sender: Any) {
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let alert = NSAlert()
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alert.messageText = "Psytrance Visualizer"
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alert.informativeText = """
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An audio-reactive visualizer for psytrance music.
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8 Visualization Modes:
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1 - FFT Classic
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2 - Mel Spectrogram
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3 - Sub-Bass
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4 - Sidechain Pump
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5 - Harmonic/Noise
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6 - Mandelbrot
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7 - Tunnel Warp
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8 - DMT Geometry
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Keyboard Shortcuts:
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1-8: Switch visualization mode
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F: Toggle fullscreen
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ESC: Exit fullscreen
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Tip: Use a virtual audio device like BlackHole to route system audio.
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"""
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alert.alertStyle = .informational
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alert.runModal()
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}
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}
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//
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// PsytranceVisualizerApp.swift
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// PsytranceVisualizer
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//
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// Main application entry point
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//
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import AppKit
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// MARK: - Main Entry Point
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/// Application entry point
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@main
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struct PsytranceVisualizerApp {
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static func main() {
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// Create the application
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let app = NSApplication.shared
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// Set up the delegate
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let delegate = AppDelegate()
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app.delegate = delegate
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// Set activation policy
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app.setActivationPolicy(.regular)
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// Create the main menu
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setupMainMenu()
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// Run the application
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app.run()
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}
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/// Sets up the application's main menu
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private static func setupMainMenu() {
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let mainMenu = NSMenu()
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// Application menu
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let appMenuItem = NSMenuItem()
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mainMenu.addItem(appMenuItem)
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let appMenu = NSMenu()
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appMenuItem.submenu = appMenu
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appMenu.addItem(withTitle: "About Psytrance Visualizer",
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action: #selector(AppDelegate.showAbout(_:)),
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keyEquivalent: "")
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appMenu.addItem(NSMenuItem.separator())
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appMenu.addItem(withTitle: "Hide Psytrance Visualizer",
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action: #selector(NSApplication.hide(_:)),
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keyEquivalent: "h")
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let hideOthersItem = appMenu.addItem(withTitle: "Hide Others",
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action: #selector(NSApplication.hideOtherApplications(_:)),
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keyEquivalent: "h")
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hideOthersItem.keyEquivalentModifierMask = [.command, .option]
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appMenu.addItem(withTitle: "Show All",
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action: #selector(NSApplication.unhideAllApplications(_:)),
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keyEquivalent: "")
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appMenu.addItem(NSMenuItem.separator())
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appMenu.addItem(withTitle: "Quit Psytrance Visualizer",
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action: #selector(NSApplication.terminate(_:)),
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keyEquivalent: "q")
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// View menu
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let viewMenuItem = NSMenuItem()
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mainMenu.addItem(viewMenuItem)
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let viewMenu = NSMenu(title: "View")
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viewMenuItem.submenu = viewMenu
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viewMenu.addItem(withTitle: "Toggle Fullscreen",
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action: #selector(NSWindow.toggleFullScreen(_:)),
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keyEquivalent: "f")
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viewMenu.addItem(NSMenuItem.separator())
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// Visualization mode submenu
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let modesMenuItem = NSMenuItem(title: "Visualization Mode", action: nil, keyEquivalent: "")
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let modesMenu = NSMenu()
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for mode in VisualizationMode.allCases {
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let item = NSMenuItem(title: mode.displayName,
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action: nil,
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keyEquivalent: mode.shortcut)
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item.tag = mode.rawValue
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modesMenu.addItem(item)
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}
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modesMenuItem.submenu = modesMenu
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viewMenu.addItem(modesMenuItem)
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// Window menu
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let windowMenuItem = NSMenuItem()
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mainMenu.addItem(windowMenuItem)
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let windowMenu = NSMenu(title: "Window")
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windowMenuItem.submenu = windowMenu
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windowMenu.addItem(withTitle: "Minimize",
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action: #selector(NSWindow.miniaturize(_:)),
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keyEquivalent: "m")
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windowMenu.addItem(withTitle: "Zoom",
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action: #selector(NSWindow.zoom(_:)),
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keyEquivalent: "")
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windowMenu.addItem(NSMenuItem.separator())
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windowMenu.addItem(withTitle: "Bring All to Front",
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action: #selector(NSApplication.arrangeInFront(_:)),
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keyEquivalent: "")
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// Help menu
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let helpMenuItem = NSMenuItem()
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mainMenu.addItem(helpMenuItem)
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let helpMenu = NSMenu(title: "Help")
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helpMenuItem.submenu = helpMenu
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helpMenu.addItem(withTitle: "Psytrance Visualizer Help",
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action: #selector(AppDelegate.showAbout(_:)),
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keyEquivalent: "?")
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NSApp.mainMenu = mainMenu
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NSApp.windowsMenu = windowMenu
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NSApp.helpMenu = helpMenu
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}
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}
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