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BridgeUtils.swift
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BridgeUtils.swift
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//
// Created by xudong wu on 23/02/2017.
// Copyright (c) wuxudong. All rights reserved.
//
import Foundation
import SwiftyJSON
import DGCharts
class BridgeUtils {
static func toIOSAlpha(_ alpha: NSNumber) -> CGFloat {
return CGFloat(Double(truncating: alpha) / 255.0);
}
static func parseColors(_ array: [JSON]) -> [NSUIColor] {
return array.map {
return RCTConvert.uiColor($0.intValue);
}
}
static func toJson(_ dict: NSDictionary) -> JSON {
let json = try! JSONSerialization.data(withJSONObject: dict);
return JSON.init(parseJSON: NSString(data: json, encoding: String.Encoding.utf8.rawValue)! as String);
}
static func parseLineChartMode(_ mode: String) -> LineChartDataSet.Mode {
let iosEnumString = androidEnumToIOSEnum(mode)
switch iosEnumString {
case "linear":
return .linear
case "stepped":
return .stepped
case "cubicBezier":
return .cubicBezier
case "horizontalBezier":
return .horizontalBezier
default:
return .linear
}
}
static func parseLegendHorizontalAlignment(_ horizontalAlignment: String) -> Legend.HorizontalAlignment {
let iosEnumString = androidEnumToIOSEnum(horizontalAlignment)
switch iosEnumString {
case "right":
return .right
case "center":
return .center
default:
return .left
}
}
static func parseLegendVerticalAlignment(_ verticalAlignment: String) -> Legend.VerticalAlignment {
let iosEnumString = androidEnumToIOSEnum(verticalAlignment)
switch iosEnumString {
case "top":
return .top
case "center":
return .center
default:
return .bottom
}
}
static func parseLegendOrientation(_ orientation: String) -> Legend.Orientation {
let iosEnumString = androidEnumToIOSEnum(orientation)
switch iosEnumString {
case "vertical":
return .vertical
default:
return .horizontal
}
}
static func parseLegendDirection(_ direction: String) -> Legend.Direction {
let iosEnumString = androidEnumToIOSEnum(direction)
switch iosEnumString {
case "rightToLeft":
return .rightToLeft
default:
return .leftToRight
}
}
static func parseYAxisLabelPosition(_ position: String) -> YAxis.LabelPosition {
let iosEnumString = androidEnumToIOSEnum(position)
switch iosEnumString {
case "outsideChart":
return .outsideChart
case "insideChart":
return .insideChart
default:
return .outsideChart
}
}
static func parseXAxisLabelPosition(_ position: String) -> XAxis.LabelPosition {
let iosEnumString = androidEnumToIOSEnum(position)
switch iosEnumString {
case "top":
return .top
case "bottom":
return .bottom
case "bothSided":
return .bothSided
case "topInside":
return .topInside
case "bottomInside":
return .bottomInside
default:
return .top
}
}
static func parseLegendForm(_ form: String) -> Legend.Form {
let iosEnumString = androidEnumToIOSEnum(form)
switch iosEnumString {
case "none":
return .none
case "empty":
return .empty
case "`default`":
return .`default`
case "square":
return .square
case "circle":
return .circle
case "line":
return .line
default:
return .square
}
}
static func parseScatterShape(_ shape: String) -> ScatterChartDataSet.Shape {
let iosEnumString = androidEnumToIOSEnum(shape)
switch iosEnumString {
case "square":
return .square
case "circle":
return .circle
case "triangle":
return .triangle
case "cross":
return .cross
case "x":
return .x
case "chevronUp":
return .chevronUp
case "chevronDown":
return .chevronDown
default:
return .square
}
}
static func parseEasingOption(_ option: String) -> ChartEasingOption {
let iosEnumString = String(option.first!).lowercased() + String(option.dropFirst())
switch iosEnumString {
case "linear":
return .linear
case "easeInQuad":
return .easeInQuad
case "easeOutQuad":
return .easeOutQuad
case "easeInOutQuad":
return .easeInOutQuad
case "easeInCubic":
return .easeInCubic
case "easeOutCubic":
return .easeOutCubic
case "easeInOutCubic":
return .easeInOutCubic
case "easeInQuart":
return .easeInQuart
case "easeOutQuart":
return .easeOutQuart
case "easeInOutQuart":
return .easeInOutQuart
case "easeInQuint":
return .easeInQuint
case "easeOutQuint":
return .easeOutQuint
case "easeInOutQuint":
return .easeInOutQuint
case "easeInSine":
return .easeInSine
case "easeOutSine":
return .easeOutSine
case "easeInOutSine":
return .easeInOutSine
case "easeInExpo":
return .easeInExpo
case "easeOutExpo":
return .easeOutExpo
case "easeInOutExpo":
return .easeInOutExpo
case "easeInCirc":
return .easeInCirc
case "easeOutCirc":
return .easeOutCirc
case "easeInOutCirc":
return .easeInOutCirc
case "easeInElastic":
return .easeInElastic
case "easeOutElastic":
return .easeOutElastic
case "easeInOutElastic":
return .easeInOutElastic
case "easeInBack":
return .easeInBack
case "easeOutBack":
return .easeOutBack
case "easeInOutBack":
return .easeInOutBack
case "easeInBounce":
return .easeInBounce
case "easeOutBounce":
return .easeOutBounce
case "easeInOutBounce":
return .easeInOutBounce
default:
return .linear
}
}
static func parseAxisDependency(_ option: String) -> YAxis.AxisDependency {
let iosEnumString = androidEnumToIOSEnum(option)
switch iosEnumString {
case "left":
return .left
case "right":
return .right
default:
return .left
}
}
static func parsePieChartDataSetValuePosition(_ option: String) -> PieChartDataSet.ValuePosition {
let iosEnumString = androidEnumToIOSEnum(option)
switch iosEnumString {
case "insideSlice":
return .insideSlice
case "outsideSlice":
return .outsideSlice
default:
return .insideSlice
}
}
static func androidEnumToIOSEnum(_ desc: String) -> String {
let components = desc.components(separatedBy: "_")
if components.count > 1 {
return components.enumerated().reduce("") {
accumulate, current in
return current.offset == 0 ? current.element.lowercased() :
accumulate + current.element.lowercased().capitalized;
}
} else {
return desc.lowercased();
}
}
// unfortunately, this function can only work with pure swift enum without @objc
// check http://stackoverflow.com/questions/42513337/why-does-an-objc-enum-have-a-different-description-than-a-pure-swift-enum
static func parseIntEnumFromString<T:RawRepresentable>(_ enumType: T.Type, desc: String) -> T? where T.RawValue == Int {
let iosEnumString = androidEnumToIOSEnum(desc);
var i = 0
while let item = enumType.init(rawValue: i) {
if String(describing: item) == iosEnumString {
return item
}
i += 1
}
return nil;
}
static func parseLimitlineLabelPosition(_ position: String) -> ChartLimitLine.LabelPosition {
let iosEnumString = androidEnumToIOSEnum(position)
// NSLog("this label position %@", iosEnumString)
switch iosEnumString {
case "rightBottom":
return .rightBottom
case "leftBottom":
return .leftBottom
case "rightTop":
return .rightTop
case "leftTop":
return .leftTop
default:
return .rightTop
}
}
static func parseDrawOrder(_ drawOrder: String) -> CombinedChartView.DrawOrder{
let iosEnumString = androidEnumToIOSEnum(drawOrder)
switch iosEnumString {
case "bar":
return .bar
case "bubble":
return .bubble
case "candle":
return .candle
case "scatter":
return .scatter
default:
return .line
}
}
}