# robothon06
# interpolate two fonts with a series of factors.
# for each factor create a new font file.

from robofab.world import SelectFont, NewFont
from robofab.interface.all.dialogs import AskString, GetFolder
import os

font1 = SelectFont("Select font 1")
font2 = SelectFont("Select font 2")

where = GetFolder("Select a folder to save the interpolations")

instances = [ ("Light", 0),
		("NotTooLight", .25),
		("Regular", .5),
		("Demi", .75),
		("Medium", 1),
]

for thing in instances:
	name, value = thing
	print "generating", name, value
	dst = NewFont()
	
	# this interpolates the glyphs
	dst.interpolate(value, font1, font2, doProgress=True)

	# this interpolates the kerning
	# comment this line out of you're just testing
	#dst.kerning.interpolate(font1.kerning, font2.kerning, value)

	dst.info.familyName = "MyBigFamily"
	dst.info.styleName = name
	dst.info.autoNaming()
	dst.update()
	fileName = dst.info.familyName + "-" + dst.info.styleName + ".vfb"
	path = os.path.join(where, fileName)
	print 'saving at', path
	
	dst.save(path)
	dst.close()