386 lines
15 KiB
Swift
386 lines
15 KiB
Swift
//
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// LabelViewController.swift
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// VDSSample
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//
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// Created by Matt Bruce on 8/16/22.
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//
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import Foundation
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import UIKit
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import VDS
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import VDSColorTokens
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class LabelViewController: BaseViewController<Label> {
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lazy var textSizePickerSelectorView = {
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TextSizePickerSelectorView(title: "",
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picker: self.picker)
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}()
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lazy var textPositionPickerSelectorView = {
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PickerSelectorView(title: TextPosition.left.rawValue,
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picker: self.picker,
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items: TextPosition.allCases)
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}()
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lazy var fontCategoryPickerSelectorView = {
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FontCategoryPickerSelectorView(title: "",
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picker: self.picker)
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}()
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//------------------------------------
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//testing only remove later
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//------------------------------------
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var useScaledLineHeight = Toggle().with { $0.isOn = NSMutableAttributedString.useScaledLineHeight }
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var pointSizeRange = Slider().with {
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$0.minimumValue = 5
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$0.value = 0
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}
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var lineheightRange = Slider()
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var lineSpacingRange = Slider()
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var topInsetRange = Slider().with {
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$0.maximumValue = 100
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$0.minimumValue = -100
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$0.value = 0
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}
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var bottomInsetRange = Slider().with {
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$0.maximumValue = 100
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$0.minimumValue = -100
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$0.value = 0
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}
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//------------------------------------
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var scaledMode: Bool { component.useScaledFont && TextStyle.canScaleFonts }
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var baseStyle: TextStyle! {
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didSet {
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baseStyleLabel.text = descriptionFor(style: baseStyle,
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useScaledLineHeight: useScaledLineHeight.isOn,
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scaledMode: scaledMode)
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}
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}
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var currentStyle: TextStyle! {
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didSet {
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//--------------------------------------------------------------
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#warning("testing only remove later")
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//--------------------------------------------------------------
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pointSizeRange.value = Float(currentStyle.pointSize.rounded())
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pointSizeRange.maximumValue = Float(baseStyle.pointSize * 1.50)
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lineheightRange.value = Float(currentStyle.lineHeight.rounded())
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lineheightRange.maximumValue = Float(pointSizeRange.value * 1.50)
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lineheightRange.minimumValue = 1
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topInsetRange.value = Float(currentStyle.edgeInsets.top).rounded()
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bottomInsetRange.value = Float(currentStyle.edgeInsets.bottom).rounded()
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updateStyleLabel()
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//--------------------------------------------------------------
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}
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}
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var useScaledFont = Toggle()
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var boldSwitch = Toggle()
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var disabledSwitch = Toggle()
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var textField = TextField()
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private var isBold: Bool = false
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fileprivate func updateStyleLabel() {
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baseStyleLabel.text = descriptionFor(style: baseStyle,
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useScaledLineHeight: useScaledLineHeight.isOn,
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scaledMode: scaledMode)
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currentStyleLabel.text = descriptionFor(style: currentStyle,
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useScaledLineHeight: useScaledLineHeight.isOn,
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scaledMode: scaledMode)
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}
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override func setup() {
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super.setup()
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NotificationCenter
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.Publisher(center: .default, name: UIContentSizeCategory.didChangeNotification)
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.sink { [weak self] notification in
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self?.checkForScaledFonts()
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}.store(in: &subscribers)
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}
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override func viewDidLoad() {
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super.viewDidLoad()
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let fullText = "Here is a sample of text that has an inline text link that you can click on!"
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let linkText = "inline text link"
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let sampleLabel = Label()
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sampleLabel.textStyle = .titleLarge
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sampleLabel.text = fullText
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if let link = ActionLabelAttribute(text: fullText, linkText: linkText) {
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link.action.sink { [weak self] in
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print("Clicked \(linkText)")
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self?.present(UIAlertController(title: "TextLink", message: "Clicked \(linkText)", preferredStyle: .alert).with{ $0.addAction(.init(title: "OK", style: .default)) }, animated: true)
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}.store(in: &subscribers)
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sampleLabel.attributes = [link]
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}
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let stack = UIStackView(arrangedSubviews: [component, sampleLabel])
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stack.spacing = 10
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stack.axis = .vertical
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addContentTopView(view: stack)
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setupPicker()
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setupModel()
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}
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var calculatedLabel = Label()
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var baseStyleLabel = Label()
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var scaledFontRow: UIView?
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var scaledLineHeightRow: UIView?
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var currentStyleRow: UIView?
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var currentStyleLabel = Label()
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func checkForScaledFonts() {
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scaledFontRow?.isHidden = !TextStyle.canScaleFonts
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scaledLineHeightRow?.isHidden = !TextStyle.canScaleFonts
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updateLabelStyle()
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}
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override func setupForm(){
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super.setupForm()
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addFormRow(label: "Disabled", view: disabledSwitch)
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addFormRow(label: "Bold", view: boldSwitch)
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addFormRow(label: "Surface", view: surfacePickerSelectorView)
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//Scaled Fonts implementation
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scaledFontRow = addFormRow(label: "Use Scaled Font", view: useScaledFont)
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scaledLineHeightRow = addFormRow(label: "Use Scaled LineHeight", view: useScaledLineHeight)
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checkForScaledFonts()
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addFormRow(label: "Text Position", view: textPositionPickerSelectorView)
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addFormRow(label: "Font Category", view: fontCategoryPickerSelectorView)
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addFormRow(label: "Text Size", view: textSizePickerSelectorView)
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addFormRow(label: "Text", view: textField)
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disabledSwitch.onChange = { [weak self] sender in
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self?.component.isEnabled = !sender.isOn
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}
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boldSwitch
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.publisher(for: .valueChanged)
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.sink { [weak self] sender in
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self?.isBold = sender.isOn
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self?.updateLabelStyle()
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}.store(in: &subscribers)
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useScaledFont
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.publisher(for: .valueChanged)
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.sink { [weak self] sender in
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self?.component.useScaledFont = sender.isOn
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self?.updateLabelStyle()
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}.store(in: &subscribers)
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textField
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.textPublisher
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.sink { [weak self] text in
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self?.component.text = text
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}.store(in: &subscribers)
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//--------------------------------------------------------------
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#warning("testing only remove later")
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//--------------------------------------------------------------
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let testingSection = FormSection()
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testingSection.title = "Temporary Settings"
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testingSection.addFormRow(label: "Original Style Props", view: baseStyleLabel)
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currentStyleRow = testingSection.addFormRow(label: "Customized Style Props", view: currentStyleLabel)
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testingSection.addFormRow(label: "Calculated", view: calculatedLabel)
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testingSection.addFormRow(label: "Point Size", view: pointSizeRange)
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testingSection.addFormRow(label: "Line Height", view: lineheightRange)
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testingSection.addFormRow(label: "Top Inset", view: topInsetRange)
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testingSection.addFormRow(label: "Bottom Inset", view: bottomInsetRange)
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append(section: testingSection)
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useScaledLineHeight
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.publisher(for: .valueChanged)
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.sink { [weak self] toggle in
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NSMutableAttributedString.useScaledLineHeight = toggle.isOn
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self?.component.setNeedsUpdate()
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self?.updateStyleLabel()
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}.store(in: &subscribers)
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pointSizeRange.publisher(for: .valueChanged).sink(receiveValue: { [weak self] slider in
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guard let self else { return }
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let textStyle = self.component.textStyle
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self.component.textStyle = TextStyle(rawValue: textStyle.rawValue,
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fontFace: textStyle.fontFace,
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pointSize: slider.rounded,
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lineHeight: textStyle.lineHeight,
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letterSpacing: textStyle.letterSpacing,
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edgeInsets: textStyle.edgeInsets)
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self.currentStyle = self.component.textStyle
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}).store(in: &subscribers)
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lineheightRange.publisher(for: .valueChanged).sink(receiveValue: { [weak self] slider in
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guard let self else { return }
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let textStyle = self.component.textStyle
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self.component.textStyle = TextStyle(rawValue: textStyle.rawValue,
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fontFace: textStyle.fontFace,
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pointSize: textStyle.pointSize,
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lineHeight: slider.rounded,
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letterSpacing: textStyle.letterSpacing,
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edgeInsets: textStyle.edgeInsets)
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self.currentStyle = self.component.textStyle
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}).store(in: &subscribers)
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topInsetRange.publisher(for: .valueChanged).sink(receiveValue: { [weak self] slider in
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guard let self else { return }
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let textStyle = self.component.textStyle
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self.component.textStyle = TextStyle(rawValue: textStyle.rawValue,
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fontFace: textStyle.fontFace,
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pointSize: textStyle.pointSize,
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lineHeight: textStyle.lineHeight,
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letterSpacing: textStyle.letterSpacing,
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edgeInsets: .init(top: slider.rounded, left: 0, bottom: CGFloat(bottomInsetRange.value), right: 0))
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self.currentStyle = self.component.textStyle
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}).store(in: &subscribers)
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bottomInsetRange.publisher(for: .valueChanged).sink(receiveValue: { [weak self] slider in
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guard let self else { return }
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let textStyle = self.component.textStyle
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self.component.textStyle = TextStyle(rawValue: textStyle.rawValue,
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fontFace: textStyle.fontFace,
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pointSize: textStyle.pointSize,
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lineHeight: textStyle.lineHeight,
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letterSpacing: textStyle.letterSpacing,
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edgeInsets: .init(top: CGFloat(topInsetRange.value), left: 0, bottom: slider.rounded, right: 0))
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self.currentStyle = self.component.textStyle
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}).store(in: &subscribers)
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component.publisher(for: \.bounds)
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.sink { [weak self] rect in
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self?.calculatedLabel.text = "Actual height (* LineHeight x Text Lines): \(rect.height)"
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}.store(in: &subscribers)
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//------------------------------------
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}
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func setupModel() {
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component.text = "Helg¹ worldg Hell¹ worldg"
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//setup UI
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surfacePickerSelectorView.text = component.surface.rawValue
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disabledSwitch.isOn = !component.isEnabled
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boldSwitch.isOn = isBold
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textField.text = component.text
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//set the font
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component.textStyle = .featureMedium
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fontCategory = .feature
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fontCategoryPickerSelectorView.text = fontCategory.rawValue.capitalized
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textSize = .medium
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textSizePickerSelectorView.text = textSize!.rawValue.capitalized
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updateLabelStyle()
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}
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override func showDebug(show: Bool) {
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component.layer.borderColor = UIColor.blue.cgColor
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component.layer.borderWidth = show ? 1 : 0
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}
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//Picker
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private var fontCategory: TextStyle.FontCategory = .feature {
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didSet {
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fontCategoryPickerSelectorView.text = fontCategory.rawValue
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textSizePickerSelectorView.items = fontCategory.sizes
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if textSizePickerSelectorView.items.count > 0 {
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textSize = textSizePickerSelectorView.items[0]
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} else {
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textSize = nil
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}
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updateLabelStyle()
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}
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}
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private var textSize: TextStyle.FontSize? = .medium {
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didSet {
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textSizePickerSelectorView.text = textSize?.rawValue ?? ""
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updateLabelStyle()
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}
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}
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var currentFont: UIFont {
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scaledMode ? currentStyle.font.scaledFont : currentStyle.font
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}
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func updateLabelStyle(){
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if let style = fontCategory.style(for: textSize, isBold: isBold) {
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component.textStyle = style
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baseStyle = style
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currentStyle = style
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}
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}
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func setupPicker(){
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surfacePickerSelectorView.onPickerDidSelect = { [weak self] item in
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self?.component.surface = item
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self?.contentTopView.backgroundColor = item.color
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}
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textPositionPickerSelectorView.onPickerDidSelect = { [weak self] item in
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self?.component.textPosition = item
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}
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textSizePickerSelectorView.onPickerDidSelect = { [weak self] item in
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self?.textSize = item
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}
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fontCategoryPickerSelectorView.onPickerDidSelect = { [weak self] item in
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self?.fontCategory = item
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}
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}
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}
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extension Slider {
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var rounded: CGFloat {
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CGFloat((value * 100).rounded() / 100)
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}
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}
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extension LabelViewController: ComponentSampleable {
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static func makeSample() -> ComponentSample {
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let component = Self.makeComponent()
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component.text = "Helg¹ worldg Hell¹ worldg"
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return ComponentSample(component: component)
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}
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}
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extension BaseViewController {
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func descriptionFor(style: TextStyle, useScaledLineHeight: Bool = false, scaledMode: Bool = false) -> String {
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let scaledFont = style.font.scaledFont
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var customizedDesc: String = "Name: \(style.rawValue) \nFont Face-Weight: \(style.font.fontName)"
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customizedDesc += "\nVDS LetterSpacing: \(style.letterSpacing)"
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if scaledMode {
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customizedDesc += "\nVDS PointSize: \(style.pointSize.rounded())"
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customizedDesc += "\n* iOS PointSize: \(scaledFont.pointSize.rounded())"
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} else {
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customizedDesc += "\n* VDS PointSize: \(style.pointSize.rounded())"
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}
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if scaledMode {
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if useScaledLineHeight {
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customizedDesc += "\nVDS LineHeight: \(style.lineHeight)"
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customizedDesc += "\n* VDS Ratio LineHeight: \(style.scaledLineHeight)"
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} else {
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customizedDesc += "\n* VDS LineHeight: \(style.lineHeight)"
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}
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customizedDesc += "\niOS LineHeight: \(scaledFont.lineHeight.rounded())"
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} else {
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customizedDesc += "\n* VDS LineHeight: \(style.lineHeight)"
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customizedDesc += "\niOS LineHeight: \(style.font.lineHeight.rounded())"
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}
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return customizedDesc
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}
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}
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