prafullakumar

import SwiftUI
import Foundation
import UIKit

struct ContentView: View {
    
    
    var body: some View {
        ZStack {
            QRView().frame(width: 300, height: 300, alignment: .center)

prafullakumar

private func addLogo(image: CIImage, logo: UIImage) -> CIImage? {
        
        guard let combinedFilter = CIFilter(name: "CISourceOverCompositing") else { return nil }
        guard let logo = logo.cgImage else {
            return image
        }
        
        let ciLogo = CIImage(cgImage: logo)

        

prafullakumar

private func updateColor(image: CIImage) -> CIImage? {
        guard let colorFilter = CIFilter(name: "CIFalseColor") else { return nil }
        
        colorFilter.setValue(image, forKey: kCIInputImageKey)
        colorFilter.setValue(color, forKey: "inputColor0")
        colorFilter.setValue(backgroundColor, forKey: "inputColor1")
        return colorFilter.outputImage
    }

prafullakumar

 private func createCIImage() -> CIImage? {
        guard let filter = CIFilter(name: "CIQRCodeGenerator") else {
            return nil
        }
        filter.setDefaults()
        filter.setValue(url.data(using: String.Encoding.ascii), forKey: "inputMessage")
        filter.setValue("H", forKey: "inputCorrectionLevel")
        //https://www.qrcode.com/en/about/error_correction.html
        return filter.outputImage
 }

prafullakumar

struct QRCodeDataSet {
    let logo: UIImage?
    let url: String
    let backgroundColor: CIColor
    let color: CIColor
    let size: CGSize
    
    init(logo: UIImage? = nil, url: String) {
        self.logo = logo
        self.url = url

prafullakumar

import SwiftUI

struct Club: Shape {
    func path(in rect: CGRect) -> Path {
        
        let (x, y, width, height) = rect.centeredSquare.flatten()
        let center = rect.centeredSquare.center
        
        let center1 = CGPoint(x: x + width / 2, y: (y + height/4 ))
        let center2 = CGPoint(x: x + width / 4, y: (y + height/2 ))

prafullakumar

import SwiftUI

struct Spade: Shape {
    func path(in rect: CGRect) -> Path {
        
        let (x, y, width, height) = rect.centeredSquare.flatten()
        
        var heartPath = Heart().rotation(.A180).path(in: CGRect(x: x, y: y, width: width, height: height * 0.9)) //take 10% for bottom rect
        let rectPath = Rectangle().path(in: CGRect(x: x + width * 0.4, y: y + height * 0.5, width: width * 0.2, height: height * 0.5))
        

prafullakumar

import SwiftUI

struct Diamond: Shape {
    
    func path(in rect: CGRect) -> Path {
        let (x, y, width, height) = rect.centeredSquare.flatten()
        let lowerPoint = CGPoint(x: x + width / 2, y: (y + height ))
        
        let path = Path { p in
            p.move(to: lowerPoint)

prafullakumar

import SwiftUI

struct Heart: Shape {
    func path(in rect: CGRect) -> Path {
        
        let (x, y, width, height) = rect.centeredSquare.flatten()
        let lowerPoint = CGPoint(x: x + width / 2, y: (y + height ))
        
        let path = Path { p in
            p.move(to: lowerPoint)

prafullakumar

import SwiftUI

extension CGRect {
    /// center of rect
    var center: CGPoint {
        return CGPoint(x: self.midX, y: self.midY)
    }
    /// if rect is not square take centered square to draw
    var centeredSquare: CGRect {
        let width = ceil(min(size.width, size.height))