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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)
+
+ \ No newline at end of file