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#!/usr/bin/env python
'FontForge: Sample functions to call from other demo scripts'
__url__ = 'http://github.com/silnrsi/pysilfont'
__copyright__ = 'Copyright (c) 2014 SIL International (http://www.sil.org)'
__license__ = 'Released under the MIT License (http://opensource.org/licenses/MIT)'
__author__ = 'David Raymond'
import fontforge
def colLtnAGlyphs(font) :
#print "Toggling colour of glyphs with LtnCapA in their name"
for glyph in font:
g = font[glyph]
if glyph.find('LtnCapA') >= 0:
if g.color != 0x00FF00:
g.color = 0x00FF00 # Green
else :
g.color = 0xFFFFFF # White
print "LtnCapA glyphs coloured"
def markOverlaps(font) :
print "Toggling colour of glyphs where contours overlap"
for glyph in font:
g = font[glyph]
if g.selfIntersects() :
if g.color != 0xFF0000:
g.color = 0xFF0000 # Red
else :
g.color = 0xFFFFFF # White
print "Glyphs coloured"
def markScaled(font) :
print "Toggling colour of glyphs with scaled components"
for glyph in font:
g = font[glyph]
for ref in g.references:
transform=ref[1]
if transform[0] != 1.0 or transform[3] != 1.0 :
if g.color != 0xFF0000:
g.color = 0xFF0000 # Red
else :
g.color = 0xFFFFFF # White
print "Glyphs coloured"
def clearColours(font) :
for glyph in font :
g = font[glyph]
g.color = 0xFFFFFF
def functionList() :
''' Returns a dictionary to be used by callFunctions() and demoAddToMenu.py
The dictionary is indexed by a group name which could be used as Tools menu
entry or to reference the group of functions. For each group there is a tuple
consisting of the Tools menu type (Font or Glyph) then one tuple per function.
For each function the tuple contains:
Function name
Label for the individual function in dialog box called from Tools menu
Actual function object'''
funcList = {
"Colour Glyphs":("Font",
("colLtnAGlyphs","Colour Latin A Glyphs",colLtnAGlyphs),
("markOverlaps","Mark Overlaps",markOverlaps),
("markScaled","Mark Scaled",markScaled),
("clearColours","Clear all colours",clearColours)),
"Group with single item":("Font",
("clearColours","Clear all colours",clearColours))}
return funcList
def callFunctions(functionGroup,font) :
funcList=functionList()[functionGroup]
i=0
for tuple in funcList :
if i == 0 :
pass # Font/Glyph parameter not relevant here
elif i == 1 :
functionDescs=[tuple[1]]
functions=[tuple[2]]
else :
functionDescs.append(tuple[1])
functions.append(tuple[2])
i=i+1
if i == 2 : # Only one function in the group, so just call the function
functions[0](font)
else :
functionNum=fontforge.ask(functionGroup,"Please choose the function to run",functionDescs)
functions[functionNum](font)
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