property NSFont : a reference to current application’s NSFont
property NSAlert : a reference to current application’s NSAlert
property NSColor : a reference to current application’s NSColor
property NSArray : a reference to current application’s NSArray
property NSString : a reference to current application’s NSString
property NSImage : a reference to current application’s NSImage
property NSScreen : a reference to current application’s NSScreen
property NSDictionary : a reference to current application’s NSDictionary
property NSBezierPath : a reference to current application’s NSBezierPath
property NSImageView : a reference to current application’s NSImageView
property NSMutableArray : a reference to current application’s NSMutableArray
property NSBitmapImageRep : a reference to current application’s NSBitmapImageRep
property NSRunningApplication : a reference to current application’s NSRunningApplication
property NSFontAttributeName : a reference to current application’s NSFontAttributeName
property NSAlertSecondButtonReturn : a reference to current application’s NSAlertSecondButtonReturn
property NSForegroundColorAttributeName : a reference to current application’s NSForegroundColorAttributeName
property NSImageScaleProportionallyUpOrDown : a reference to current application’s NSImageScaleProportionallyUpOrDown

property returnCode : 0

set plotData to {20, 30, 100, 80, 150, 90}
set paramObj to {myMessage:"This is a graph", mySubMessage:"Browse bar graph", aPlotData:plotData}
my performSelectorOnMainThread:"displayBarGraph:" withObject:(paramObj) waitUntilDone:true

on displayBarGraph:paramObj
　　set aMainMes to myMessage of paramObj
　　set aSubMes to mySubMessage of paramObj
　　set aTList to (aPlotData of paramObj) as list
　　
　　— make NSIMageView with graph image
　　set anImage to makeGraphImage(aTList, 300, 200) of me
　　set anImageView to NSImageView’s alloc()’s initWithFrame:{origin:{x:0.0, y:0.0}, |size|:{width:300.0, height:200.0}}
　　anImageView’s setImageScaling:(NSImageScaleProportionallyUpOrDown)
　　anImageView’s setEditable:false
　　anImageView’s setImage:anImage
　　anImageView’s display()
　　
　　— set up alert　　
　　set theAlert to NSAlert’s alloc()’s init()
　　tell theAlert
　　　　its setMessageText:aMainMes
　　　　its setInformativeText:aSubMes
　　　　its addButtonWithTitle:"OK"
　　　　its addButtonWithTitle:"Cancel"
　　　　its setAccessoryView:anImageView
　　end tell
　　
　　— show alert in modal loop
　　NSRunningApplication’s currentApplication()’s activateWithOptions:0
　　my performSelectorOnMainThread:"doModal:" withObject:(theAlert) waitUntilDone:true
　　if (my returnCode as number) = 1001 then error number -128
end displayBarGraph:

on doModal:aParam
　　set (my returnCode) to aParam’s runModal()
end doModal:

on makeGraphImage(plotData, aWidth, aHeight)
　　set innerGapL to 30
　　set innerGapU to 10
　　set innerGapR to 20
　　set innerGapD to 20
　　set barGap to 10
　　
　　–パラメータから下地になる画像を作成する
　　set aSize to current application’s NSMakeSize(aWidth, aHeight)
　　set anImage to NSImage’s alloc()’s initWithSize:aSize
　　
　　–各種パラメータの計算
　　–copy plotArea to {plotWidth, plotHeight}
　　set itemNum to count every item of plotData
　　set barThickness to (aWidth – (itemNum * barGap * 2)) div itemNum
　　
　　–プロットデータの最大値
　　set anArray to NSArray’s arrayWithArray:plotData
　　set aYmax to (anArray’s valueForKeyPath:"@max.self")’s intValue()
　　set aMaxYVal to aHeight – innerGapU – innerGapD
　　set aYPlotArea to aHeight – innerGapU – innerGapD – 20
　　set aYUnit to aYPlotArea / aYmax
　　
　　–数値データをもとに描画データを組み立てる
　　set drawList to {}
　　
　　set startX to innerGapL
　　copy startX to origX
　　
　　repeat with i in plotData
　　　　set the end of drawList to current application’s NSMakeRect(startX, innerGapD, barThickness, innerGapD + (i * aYUnit))
　　　　set startX to startX + barThickness + barGap
　　end repeat
　　
　　–グラフ塗りつぶし処理呼び出し
　　set fillColor to (NSColor’s colorWithCalibratedRed:0.1 green:0.1 blue:0.1 alpha:0.3)
　　set resImage to drawImageWithColorFill(anImage, drawList, fillColor) of me
　　
　　–数値データ（文字）をグラフィックに記入
　　set fillColor2 to NSColor’s blackColor()
　　set resImage to drawImageWithString(resImage, drawList, fillColor2, plotData, "Eurostile Bold", 20.0) of me
　　
　　–補助線を引く
　　set fillColor3 to (NSColor’s colorWithCalibratedRed:0.0 green:0.0 blue:0.0 alpha:0.8)
　　set aVertical to current application’s NSMakeRect(origX, innerGapD, aWidth – innerGapL – innerGapR, 1)
　　set aHorizontal to current application’s NSMakeRect(origX, innerGapD, 1, aHeight – innerGapU – innerGapD)
　　set draw2List to {aVertical, aHorizontal}
　　set resImage to drawImageWithColorFill(resImage, draw2List, fillColor3) of me
　　
　　return resImage
end makeGraphImage

–NSImageに対して文字を描画する
on drawImageWithString(anImage, drawList, fillColor, dataList, aPSFontName, aFontSize)
　　set retinaF to (NSScreen’s mainScreen()’s backingScaleFactor()) as real
　　–>　　2.0 (Retina) / 1.0 (Non Retina)
　　
　　set aDict to (NSDictionary’s dictionaryWithObjects:{NSFont’s fontWithName:aPSFontName |size|:aFontSize, fillColor} forKeys:{NSFontAttributeName, NSForegroundColorAttributeName})
　　
　　anImage’s lockFocus() –描画開始
　　
　　set aLen to length of drawList
　　repeat with i from 1 to aLen
　　　　set i1 to contents of item i of drawList
　　　　
　　　　set v2 to system attribute "sys2"
　　　　if v2 ≤ 12 then
　　　　　　–To macOS 10.12.x
　　　　　　set origX to (x of origin of i1) / retinaF
　　　　　　set origY to (y of origin of i1) / retinaF
　　　　　　set sizeX to (width of |size| of i1) / retinaF
　　　　　　set sizeY to (height of |size| of i1) / retinaF
　　　　　　set theRect to {{x:origX, y:origY}, {width:sizeX, height:sizeY}}
　　　　else
　　　　　　–macOS 10.13 or later
　　　　　　set origX to (item 1 of item 1 of i1) / retinaF
　　　　　　set origY to (item 2 of item 1 of i1) / retinaF
　　　　　　set sizeX to (item 1 of item 2 of i1) / retinaF
　　　　　　set sizeY to (item 2 of item 2 of i1) / retinaF
　　　　　　set theRect to {{origX, origY}, {sizeX, sizeY}}
　　　　end if
　　　　
　　　　set aString to (current application’s NSString’s stringWithString:((contents of item i of dataList) as string))
　　　　(aString’s drawAtPoint:(current application’s NSMakePoint(origX + (sizeX / 2), sizeY)) withAttributes:aDict)
　　end repeat
　　
　　anImage’s unlockFocus() –描画ここまで
　　
　　return anImage –returns NSImage
end drawImageWithString