Add missing imports for iOS 7 support (issue ChartsOrg#44)

Charts/Classes/Animation/ChartAnimationEasing.swift

@@ -13,6 +13,7 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
 
 @objc
 public enum ChartEasingOption: Int

Charts/Classes/Charts/BarChartView.swift

@@ -12,6 +12,7 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
 
 /// Chart that draws bars.
 public class BarChartView: BarLineChartViewBase, BarChartRendererDelegate

Charts/Classes/Charts/BarLineChartViewBase.swift

@@ -12,6 +12,8 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
+import UIKit.UIGestureRecognizer
 
 /// Base-class of LineChart, BarChart, ScatterChart and CandleStickChart.
 public class BarLineChartViewBase: ChartViewBase, UIGestureRecognizerDelegate

Charts/Classes/Charts/CandleStickChartView.swift

@@ -12,6 +12,7 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
 
 /// Financial chart type that draws candle-sticks.
 public class CandleStickChartView: BarLineChartViewBase, CandleStickChartRendererDelegate

Charts/Classes/Charts/CombinedChartView.swift

@@ -12,6 +12,7 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
 
 /// This chart class allows the combination of lines, bars, scatter and candle data all displayed in one chart area.
 public class CombinedChartView: BarLineChartViewBase

Charts/Classes/Charts/HorizontalBarChartView.swift

@@ -12,6 +12,7 @@
 //
 
 import Foundation
+import UIKit
 
 /// BarChart with horizontal bar orientation. In this implementation, x- and y-axis are switched.
 public class HorizontalBarChartView: BarChartView

Charts/Classes/Charts/LineChartView.swift

@@ -12,6 +12,7 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
 
 /// Chart that draws lines, surfaces, circles, ...
 public class LineChartView: BarLineChartViewBase, LineChartRendererDelegate

Charts/Classes/Charts/PieChartView.swift

@@ -12,6 +12,7 @@
 //
 
 import Foundation
+import UIKit
 
 /// View that represents a pie chart. Draws cake like slices.
 public class PieChartView: PieRadarChartViewBase

Charts/Classes/Charts/PieRadarChartViewBase.swift

@@ -12,6 +12,8 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
+import UIKit.UIGestureRecognizer
 
 /// Base class of PieChartView and RadarChartView.
 public class PieRadarChartViewBase: ChartViewBase

Charts/Classes/Charts/RadarChartView.swift

@@ -12,6 +12,8 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
+import UIKit.UIColor
 
 /// Implementation of the RadarChart, a "spidernet"-like chart. It works best
 /// when displaying 5-10 entries per DataSet.

Charts/Classes/Charts/ScatterChartView.swift

@@ -12,6 +12,7 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
 
 /// The ScatterChart. Draws dots, triangles, squares and custom shapes into the chartview.
 public class ScatterChartView: BarLineChartViewBase, ScatterChartRendererDelegate

Charts/Classes/Data/BarChartData.swift

@@ -12,6 +12,7 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
 
 public class BarChartData: BarLineScatterCandleChartData
 {
@@ -39,4 +40,4 @@ public class BarChartData: BarLineScatterCandleChartData
     {
         return _dataSets.count > 1 ? true : false;
     }
-}
+}

Charts/Classes/Data/BarChartDataSet.swift

@@ -12,6 +12,8 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
+import UIKit.UIColor
 
 public class BarChartDataSet: BarLineScatterCandleChartDataSet
 {

Charts/Classes/Data/CandleChartDataSet.swift

@@ -12,6 +12,8 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
+import UIKit.UIColor
 
 public class CandleChartDataSet: BarLineScatterCandleChartDataSet
 {

Charts/Classes/Data/LineChartDataSet.swift

@@ -12,6 +12,8 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
+import UIKit.UIColor
 
 public class LineChartDataSet: LineRadarChartDataSet
 {

Charts/Classes/Data/LineRadarChartDataSet.swift

@@ -12,6 +12,8 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
+import UIKit.UIColor
 
 public class LineRadarChartDataSet: BarLineScatterCandleChartDataSet
 {

Charts/Classes/Data/PieChartDataSet.swift

@@ -13,6 +13,9 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
+import UIKit.UIColor
+import UIKit.UIFont
 
 public class PieChartDataSet: ChartDataSet
 {

Charts/Classes/Data/RadarChartData.swift

@@ -12,6 +12,8 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
+import UIKit.UIColor
 
 public class RadarChartData: ChartData
 {

Charts/Classes/Data/RadarChartDataSet.swift

@@ -13,6 +13,7 @@
 //
 
 import Foundation
+import UIKit.UIFont
 
 public class RadarChartDataSet: LineRadarChartDataSet
 {

Charts/Classes/Data/ScatterChartData.swift

@@ -11,7 +11,7 @@
 //  https://github.com/danielgindi/ios-charts
 //
 
-import Foundation
+import UIKit
 
 public class ScatterChartData: BarLineScatterCandleChartData
 {

Charts/Classes/Renderers/BarChartRenderer.swift

@@ -12,6 +12,8 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
+import UIKit.UIFont
 
 @objc
 public protocol BarChartRendererDelegate

Charts/Classes/Renderers/CandleStickChartRenderer.swift

@@ -12,6 +12,8 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
+import UIKit.UIColor
 
 @objc
 public protocol CandleStickChartRendererDelegate

Charts/Classes/Renderers/ChartDataRendererBase.swift

@@ -12,6 +12,7 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
 
 public class ChartDataRendererBase: ChartRendererBase
 {

Charts/Classes/Renderers/ChartLegendRenderer.swift

@@ -12,7 +12,9 @@
 //
 
 import Foundation
-import CoreGraphics;
+import CoreGraphics.CGBase
+import UIKit.UIColor
+import UIKit.UIFont
 
 public class ChartLegendRenderer: ChartRendererBase
 {

Charts/Classes/Renderers/ChartRendererBase.swift

@@ -12,6 +12,7 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
 
 public class ChartRendererBase: NSObject
 {

Charts/Classes/Renderers/ChartXAxisRenderer.swift

@@ -12,6 +12,8 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
+import UIKit.UIFont
 
 public class ChartXAxisRenderer: ChartAxisRendererBase
 {

Charts/Classes/Renderers/ChartXAxisRendererBarChart.swift

@@ -12,6 +12,8 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
+import UIKit.UIFont
 
 public class ChartXAxisRendererBarChart: ChartXAxisRenderer
 {

Charts/Classes/Renderers/ChartXAxisRendererHorizontalBarChart.swift

@@ -12,6 +12,8 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
+import UIKit.UIFont
 
 public class ChartXAxisRendererHorizontalBarChart: ChartXAxisRendererBarChart
 {

Charts/Classes/Renderers/ChartXAxisRendererRadarChart.swift

@@ -12,6 +12,8 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
+import UIKit.UIFont
 
 public class ChartXAxisRendererRadarChart: ChartXAxisRenderer
 {

Charts/Classes/Renderers/ChartYAxisRenderer.swift

@@ -12,6 +12,8 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
+import UIKit.UIFont
 
 public class ChartYAxisRenderer: ChartAxisRendererBase
 {

Charts/Classes/Renderers/ChartYAxisRendererHorizontalBarChart.swift

@@ -12,6 +12,8 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
+import UIKit.UIFont
 
 public class ChartYAxisRendererHorizontalBarChart: ChartYAxisRenderer
 {

Charts/Classes/Renderers/ChartYAxisRendererRadarChart.swift

@@ -12,6 +12,8 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
+import UIKit.UIFont
 
 public class ChartYAxisRendererRadarChart: ChartYAxisRenderer
 {

Charts/Classes/Renderers/CombinedChartRenderer.swift

@@ -12,6 +12,7 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
 
 public class CombinedChartRenderer: ChartDataRendererBase,
     LineChartRendererDelegate,

Charts/Classes/Renderers/HorizontalBarChartRenderer.swift

@@ -12,6 +12,8 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
+import UIKit.UIFont
 
 public class HorizontalBarChartRenderer: BarChartRenderer
 {

Charts/Classes/Renderers/LineChartRenderer.swift

@@ -12,6 +12,8 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
+import UIKit.UIFont
 
 @objc
 public protocol LineChartRendererDelegate

Charts/Classes/Renderers/PieChartRenderer.swift

@@ -12,6 +12,9 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
+import UIKit.UIColor
+import UIKit.UIFont
 
 public class PieChartRenderer: ChartDataRendererBase
 {

Charts/Classes/Renderers/RadarChartRenderer.swift

@@ -12,6 +12,8 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
+import UIKit.UIFont
 
 public class RadarChartRenderer: ChartDataRendererBase
 {

Charts/Classes/Renderers/ScatterChartRenderer.swift

@@ -12,6 +12,8 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
+import UIKit.UIFont
 
 @objc
 public protocol ScatterChartRendererDelegate

Charts/Classes/Utils/ChartFillFormatter.swift

@@ -12,6 +12,7 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
 
 /// Protocol for providing a custom logic to where the filling line of a DataSet should end. If setFillEnabled(...) is set to true.
 @objc

Charts/Classes/Utils/ChartTransformer.swift

@@ -12,6 +12,7 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
 
 /// Transformer class that contains all matrices and is responsible for transforming values into pixels on the screen and backwards.
 public class ChartTransformer: NSObject

Charts/Classes/Utils/ChartTransformerHorizontalBarChart.swift

@@ -12,6 +12,7 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
 
 public class ChartTransformerHorizontalBarChart: ChartTransformer
 {

Charts/Classes/Utils/ChartViewPortHandler.swift

@@ -12,6 +12,7 @@
 //
 
 import Foundation
+import CoreGraphics.CGBase
 
 public class ChartViewPortHandler
 {