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108 lines
3.8 KiB
Swift
108 lines
3.8 KiB
Swift
//
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// ChartVisibilityItem.swift
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// GraphCore
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//
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// Created by Mikhail Filimonov on 26.02.2020.
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// Copyright © 2020 Telegram. All rights reserved.
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//
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import Foundation
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#if os(macOS)
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import Cocoa
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#else
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import UIKit
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#endif
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public struct ChartVisibilityItem {
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public var title: String
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public var color: GColor
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public init(title: String, color: GColor) {
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self.title = title
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self.color = color
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}
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public static func generateItemsFrames(for chartWidth: CGFloat, items: [ChartVisibilityItem]) -> [CGRect] {
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if items.count == 1 {
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return []
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}
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var previousPoint = CGPoint(x: ChatVisibilityItemConstants.insets.left, y: ChatVisibilityItemConstants.insets.top)
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var frames: [CGRect] = []
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for item in items {
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let labelSize = textSize(with: item.title, font: ChatVisibilityItemConstants.textFont)
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let width = (labelSize.width + ChatVisibilityItemConstants.labelTextApproxInsets).rounded(.up)
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if previousPoint.x + width < (chartWidth - ChatVisibilityItemConstants.insets.left - ChatVisibilityItemConstants.insets.right) {
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frames.append(CGRect(origin: previousPoint, size: CGSize(width: width, height: ChatVisibilityItemConstants.itemHeight)))
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} else if previousPoint.x <= ChatVisibilityItemConstants.insets.left {
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frames.append(CGRect(origin: previousPoint, size: CGSize(width: width, height: ChatVisibilityItemConstants.itemHeight)))
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} else {
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previousPoint.y += ChatVisibilityItemConstants.itemHeight + ChatVisibilityItemConstants.itemSpacing
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previousPoint.x = ChatVisibilityItemConstants.insets.left
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frames.append(CGRect(origin: previousPoint, size: CGSize(width: width, height: ChatVisibilityItemConstants.itemHeight)))
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}
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previousPoint.x += width + ChatVisibilityItemConstants.itemSpacing
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}
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return frames
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}
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}
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enum ChatVisibilityItemConstants {
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static let itemHeight: CGFloat = 30
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static let itemSpacing: CGFloat = 8
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static let labelTextApproxInsets: CGFloat = 40
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static let insets = NSEdgeInsets(top: 0, left: 16, bottom: 16, right: 16)
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static let textFont = NSFont.systemFont(ofSize: 14, weight: .medium)
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}
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public struct ChartDetailsViewModel {
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public struct Value {
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public let prefix: String?
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public let title: String
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public let value: String
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public let color: GColor
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public let visible: Bool
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public init(prefix: String?,
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title: String,
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value: String,
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color: GColor,
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visible: Bool) {
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self.prefix = prefix
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self.title = title
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self.value = value
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self.color = color
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self.visible = visible
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}
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}
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public internal(set) var title: String
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public internal(set) var showArrow: Bool
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public internal(set) var showPrefixes: Bool
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public internal(set) var isLoading: Bool
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public internal(set) var values: [Value]
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public internal(set) var totalValue: Value?
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public internal(set) var tapAction: (() -> Void)?
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public internal(set) var hideAction: (() -> Void)?
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static let blank = ChartDetailsViewModel(title: "", showArrow: false, showPrefixes: false, isLoading: false, values: [], totalValue: nil, tapAction: nil, hideAction: nil)
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public init(title: String,
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showArrow: Bool,
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showPrefixes: Bool,
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isLoading: Bool,
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values: [Value],
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totalValue: Value?,
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tapAction: (() -> Void)?,
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hideAction: (() -> Void)?) {
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self.title = title
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self.showArrow = showArrow
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self.showPrefixes = showPrefixes
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self.isLoading = isLoading
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self.values = values
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self.totalValue = totalValue
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self.tapAction = tapAction
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self.hideAction = hideAction
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}
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}
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