func init
	// checks installation Adobe Photoshop and adds references
	include("AdobePhotoshop")

	// initialize instance
	if(linked("Document") or not isdef("Name"))
		sys.add_var(this.name, 'ps.Document')
	end
end

func doNew(data)
	if(linked("Document") or not isdef("Name"))
		blk.println(this.codename, ' = ', this.make_new(data), ';')
		event("onComplete", this.codename)
	else
		event("onComplete", this.make_new(data))
	end
end

func Document
	if(sys.is_linked(1) or not isdef("Name"))
		return(this.codename)
	else
		return(this.make_new())
	end
end

func make_new(data)
	if(not isdef("RulerUnits"))
		blk.println(d("Photoshop", 20), '.Preferences.RulerUnits = ', sys.get_typed_field(0, 'RulerUnits', 14, 'ps.PsUnits'), ';')
	end
	return(d("Photoshop", 20) + '.Documents.Add(' +
		d("Width") + ', ' +
		d("Height") + ', ' +
		d("Resolution", 1, 'Type.Missing') + ', ' +
		d("FileName", 2, 'Type.Missing') + ', ' +
		sys.get_typed_field('Type.Missing', 'Mode', 14, 'ps.PsNewDocumentMode') + ', ' +
		sys.get_typed_field('Type.Missing', 'Fill', 14, 'ps.PsDocumentFill') + ', ' +
		d("Ratio", 7, 'Type.Missing') + ', ' +
		sys.get_typed_field('Type.Missing', 'BitsPerChannel', 14, 'ps.PsBitsPerChannelType') + ', ' +
		d("ColorProfile", 2, 'Type.Missing') +
	')')
end