指定画像をPNG形式で保存

AppleScript名：指定画像をPNG形式で保存

— Created 2017-02-05 by Takaaki Naganoya
— 2017 Piyomaru Software
use AppleScript version "2.4"
use scripting additions
use framework "Foundation"
use framework "AppKit"

set aFile to POSIX path of (choose file of type {"public.image"} with prompt "Select Image A")
set aImage to current application’s NSImage’s alloc()’s initWithContentsOfFile:aFile

set fRes to retUUIDfilePath(aFile, "png") of me
set sRes to saveNSImageAtPathAsPNG(imgRes, fRes) of me

on retUUIDfilePath(aPath, aEXT)
　　set aUUIDstr to (current application’s NSUUID’s UUID()’s UUIDString()) as string
　　set aPath to ((current application’s NSString’s stringWithString:aPath)’s stringByDeletingLastPathComponent()’s stringByAppendingPathComponent:aUUIDstr)’s stringByAppendingPathExtension:aEXT
　　return aPath
end retUUIDfilePath

–NSImageを指定パスにPNG形式で保存
on saveNSImageAtPathAsPNG(anImage, outPath)
　　set imageRep to anImage’s TIFFRepresentation()
　　set aRawimg to current application’s NSBitmapImageRep’s imageRepWithData:imageRep
　　set pathString to current application’s NSString’s stringWithString:outPath
　　set newPath to pathString’s stringByExpandingTildeInPath()
　　set myNewImageData to (aRawimg’s representationUsingType:(current application’s NSPNGFileType) |properties|:(missing value))
　　set aRes to (myNewImageData’s writeToFile:newPath atomically:true) as boolean
　　return aRes –true/false
end saveNSImageAtPathAsPNG