Set Transform Origin to Centre of Selection

Set Transform Origin to Centre of Selection.py

#MenuTitle: Set Transform Origin to Centre of Selection
# -*- coding: utf-8 -*-
__doc__="""
Sets origin point for Rotate tool to the centre of the selection.
"""
import GlyphsApp

Font = Glyphs.font
Doc = Glyphs.currentDocument
selectedLayer = Font.selectedLayers[0]

try:
	# until v2.1:
	selection = selectedLayer.bounds()
except:
	# since v2.2:
	selection = selectedLayer.bounds

newOriginX = selection.origin.x+selection.size.width/2
newOriginY = selection.origin.y+selection.size.height/2
newOriginPoint = NSPoint( newOriginX, newOriginY )

myController = Glyphs.currentDocument.windowController()
myController.graphicView().setNeedsDisplay_(False)

rotateToolClass = NSClassFromString("GlyphsToolRotate")
myRotateTool = myController.toolForClass_( rotateToolClass )
myRotateTool.setTransformOrigin_( newOriginPoint )

myController.graphicView().setNeedsDisplay_(True)

# print newOriginPoint
# print selection.origin.x, selection.origin.y, selection.size.width/2, selection.size.height/2

# except Exception, e:
# 	# brings macro window to front and reports error:
# 	Glyphs.showMacroWindow()
# 	print "Set Transform Origin Error: %s" % e