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fix issue with image type cases in 2.3.0. #1780

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4 changes: 2 additions & 2 deletions Source/Charts/Utils/ChartPlatform.swift
Original file line number Diff line number Diff line change
Expand Up @@ -520,15 +520,15 @@ types are aliased to either their UI* implementation (on iOS) or their NS* imple
image.lockFocus()
let rep = NSBitmapImageRep(focusedViewRect: NSMakeRect(0, 0, image.size.width, image.size.height))
image.unlockFocus()
return rep?.representationUsingType(.JPEG, properties: [:])
return rep?.representationUsingType(.NSPNGFileType, properties: [:])
}

func NSUIImageJPEGRepresentation(image: NSUIImage, _ quality: CGFloat = 0.9) -> NSData?
{
image.lockFocus()
let rep = NSBitmapImageRep(focusedViewRect: NSMakeRect(0, 0, image.size.width, image.size.height))
image.unlockFocus()
return rep?.representationUsingType(.JPEG, properties: [NSImageCompressionFactor: quality])
return rep?.representationUsingType(.NSJPEGFileType, properties: [NSImageCompressionFactor: quality])
}

private var imageContextStack: [CGFloat] = []
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