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Amzd / StateObject.swift

Last active March 27, 2024 20:14

StateObject that works in iOS 13

	import Combine
	import PublishedObject // https://github.com/Amzd/PublishedObject
	import SwiftUI

	/// A property wrapper type that instantiates an observable object.
	@propertyWrapper
	public struct StateObject<ObjectType: ObservableObject>: DynamicProperty
	where ObjectType.ObjectWillChangePublisher == ObservableObjectPublisher {

	/// Wrapper that helps with initialising without actually having an ObservableObject yet

Amzd / ColorPicker.swift

Last active August 6, 2024 08:07

What SwiftUI's ColorPicker should have been.

	import SwiftUI

	@available(iOS 14.0, *)
	public struct ColorPickerWithoutLabel: UIViewRepresentable {
	@Binding var selection: Color
	var supportsAlpha: Bool = true

	public init(selection: Binding<Color>, supportsAlpha: Bool = true) {
	self._selection = selection
	self.supportsAlpha = supportsAlpha

thecodewarrior / App Icon Template.svg

Last active September 24, 2024 02:45

An SVG template for creating macOS app icons, including guides and the standard drop shadow

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wtsnz / ContentView.swift

Last active September 5, 2024 01:17

Playing around with hosting SwiftUI Views in an NSWindow from inside a View 🙃 (also works for the NSStatusBar item!)

	import SwiftUI

	struct ContentView: View {

	@State var now = Date()
	@State var showWindow = false
	@State var text: String = ""

	let timer = Timer.publish(every: 1, on: .current, in: .common).autoconnect()

jemmons / Create Input with Block.swift

Last active November 17, 2022 07:04

Sample CoreMIDI code…

	// See: https://forums.developer.apple.com/thread/65997

	MIDIInputPortCreateWithBlock(midiClient, "Instrument" as CFString, &inPort, {
	(unsafePacketList: UnsafePointer<MIDIPacketList>, pointer: UnsafeMutableRawPointer?) in
	let packetList = unsafePacketList.pointee
	if packetList.numPackets == 1 {
	let packet = packetList.packet
	if packet.length == 3 && packet.data.0 == 144 {
	/* Note-On */
	let note = packet.data.1

allenhumphreys / CreateCroppedPixelBufferBiPlanar.c

Last active May 3, 2024 06:58

Functions in Swift/C to Crop and Scale CVPixelBuffers in the BiPlanar formats

	CVPixelBufferRef createCroppedPixelBufferBiPlanar(CVPixelBufferRef srcPixelBuffer, CGRect croppingRect, CGSize scaleSize) {

	OSType inputPixelFormat = CVPixelBufferGetPixelFormatType(srcPixelBuffer);
	assert(inputPixelFormat == kCVPixelFormatType_420YpCbCr8BiPlanarFullRange
	\|\| inputPixelFormat == kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange);

	size_t inputWidth = CVPixelBufferGetWidth(srcPixelBuffer);
	size_t inputHeight = CVPixelBufferGetHeight(srcPixelBuffer);

	assert(CGRectGetMinX(croppingRect) >= 0);