AndyDentFree

@IBAction public func onThicknesssliderChanged(_ sender: UISlider)  {
    let step: Float = 0.25 // using 0.1 causes text render backwards & slanted! Very weird SKLabel internal bug
    let roundedValue = roundf(sender.value / step) * step
    sender.value = roundedValue  // force it to jump in increments
    updatePreviewFromThicknessChange()
}

AndyDentFree

    @IBAction public func onThicknesssliderChanged(_ sender: UISlider)  {
        let step: Float = 0.25 // using 0.1 causes text render backwards & slanted! Very weird SKLabel internal bug
        let roundedValue = roundf(sender.value / step) * step
        sender.value = roundedValue  // force it to jump in increments
        updatePreviewFromThicknessChange()
    }

AndyDentFree

fileprivate func updatePreviewFromThicknessChange() {
    if thicknessAdjuster.value != lineWidth {
        thicknessSwatch.setNeedsDisplay()  // refresh assuming value adjusted
        lineWidth = thicknessAdjuster.value
        textStyle.drawStyle = textStyle.drawStyle.butWith(
          lineWidthTenths: Int(lineWidth*10))
        updateFontStyling()
        updateFontDisplay()
    }
}

AndyDentFree

    static func makeManyTextVaryingOutlines(workNum: UInt32) -> tgTouchgram {
        let fc = tgColor(systemColor: .red)
        let ec = tgColor(systemColor: .yellow)
        let pt: UInt16 = 48
        let lw:[CGFloat] = Array(stride(from: 0.0, through: 4.0, by: 0.5))
        return tgTouchgram(title: "Lots of Text Varying Outlines", scenes: [
            tgScene(background: tgColorBackground(fill: tgColor(systemColor: .blue)),
                    triggers: [],
                    nodes: tgNodeList(nodes: [
                        tgSimpleTextNode(position: tgNodePosition(anchored: .topLeft, paddingPixels: 8),

AndyDentFree

//  Created by Andy Dent on 9/2/22.
//  Copyright © 2022 Touchgram Pty Ltd. All rights reserved.

import Foundation
import UIKit

/// portions showing how the sizing works
class SimpleTextNodeDetailViewController: UIViewController {
    @IBOutlet var labelEntryWidthToOverall: NSLayoutConstraint!
    @IBOutlet var labelEntryWidthToPreview: NSLayoutConstraint!

AndyDentFree

// shows how C++11 can implement the "defer" introduced in Swift 2.0
#include <iostream>

using simpleClosure = std::function<void()>;  // new typedef syntax used for closure

// class only needs to be declared once then used all over to wrap closures
// see http://en.wikipedia.org/wiki/Resource_Acquisition_Is_Initialization
class deferRAII {
public:
  deferRAII(simpleClosure cl) : runOnDestruction(cl) {}

AndyDentFree

// the Swift direct equivalent of the F# gist https://gist.github.com/AndyDentFree/46ac476a31b07d103a03

import Darwin
enum Shape {
  case Circle (radius:Double)
  case Rectangle (width:Double, height:Double)
  case Triangle (tbase:Double, height:Double)
}

func area(shape:Shape) -> Double {

AndyDentFree

open Microsoft.FSharp.Math
type Shape = 
  | Circle of radius:float
  | Rectangle of width:float * height:float // tuple of float, float
  | Triangle of tbase:float * height:float

let area shape = 
  match shape with
  | Circle radius -> Math.PI * radius * radius
  | Rectangle (width, height) -> width * height

AndyDentFree

/*
Sometimes in iOS code, you need to be able to walk up the chain of parent views, especially if working on legacy code.

This has been hardcoded in the past with horrible assumptions like this, which broke again in iOS 8:
    if (IS_IOS7_AND_UP) { 
        spdVC = (SuperDuperViewController*)[(UITableView*)self.superview.superview.superview.superview.superview delegate];
    } else {
        spdVC = (SuperDuperViewController*)[(UITableView*)self.superview.superview.superview delegate];
    }