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#!/usr/bin/fontforge -script
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__author__ = "Stevan White <stevan.white@googlemail.com>"
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import fontforge
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import sys
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from OpenType.UnicodeRanges import *
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def get_kern_subtables( font ):
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try:
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tables = []
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for lookup in font.gpos_lookups:
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if font.getLookupInfo( lookup )[0] == 'gpos_pair':
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sts = font.getLookupSubtables( lookup )
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for st in sts:
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if font.isKerningClass( st ):
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tables.append( st )
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return tables
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except EnvironmentError, ( e ):
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print >> sys.stderr, 'EnvironmentError ' + str( e )
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except TypeError, ( t ):
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print >> sys.stderr, 'TypeError ' + str( t )
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return None
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preamble = """
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<html>
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<head>
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<style type="text/css">
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.nonexistent { background-color: red; }
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td { text-align: right; font-family: inherit; }
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.I td { font-style: italic; }
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.B td { font-weight: bold; }
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.BI td { font-weight: bold; font-style: italic; }
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td { line-height: 1; }
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.classes td { text-align: left; vertical-align: top; }
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td span { font-weight: normal; font-style: normal; font-size: smaller; color: lime; }
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td span.pos { color: magenta; }
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td.zero { color: gray; }
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</style>
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</head>
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<body>
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"""
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postamble="""
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</body>
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</html>
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"""
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def print_kerns( fontPath ):
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font = fontforge.open( fontPath )
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print 'Kerning classes in ' + font.fontname + ''
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weight = ''
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if font.os2_weight > 500:
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weight = 'B'
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style = ''
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if font.italicangle < 0.0:
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style = 'I'
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print '
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+ 'class="' + weight + style + '">'
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subtables = get_kern_subtables( font )
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for st in subtables:
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print 'Subtable ' + st + ''
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printKernsOfSubtable( font, st )
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print ''
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sys.stdout.flush()
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def printKernsOfSubtable( font, subtable ):
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kclass = font.getKerningClass( subtable )
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n = 0
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leftclasses = kclass[0]
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rightclasses = kclass[1]
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kerns = kclass[2]
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nr = len( rightclasses )
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print ''
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print 'left classes: '
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print 'right classes: '
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print ''
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for lc in leftclasses:
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if lc:
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for c in lc:
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printentity( font, c )
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print "
"
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print ""
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print ""
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for rc in rightclasses:
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if rc:
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for c in rc:
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printentity( font, c )
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print "
"
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print ""
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print ""
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print ""
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print ""
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print ""
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print ""
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for rc in rightclasses:
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if rc:
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sys.stdout.write( "" )
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printentity( font, rc[0] )
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sys.stdout.write( "" )
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print ""
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for lc in leftclasses:
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m = 0
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if lc:
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print ""
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sys.stdout.write( "" )
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printentity( font, lc[0] )
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sys.stdout.write( "" )
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for rc in rightclasses:
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kern = kerns[ n * nr + m ]
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if rc:
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ccolor = ''
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ncolor = ''
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if kern > 0:
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ncolor = ' class="pos"'
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if kern == 0:
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ccolor = ' class="zero"'
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sys.stdout.write( '<td' + ccolor + '><span' + ncolor + '>' )
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if kern == 0:
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sys.stdout.write( ' ' )
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else:
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sys.stdout.write( str( kern ) )
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sys.stdout.write( '
' )
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printpair( font, lc[0], rc[0] )
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sys.stdout.write( '' )
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m += 1
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print ""
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n += 1
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print ""
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def printentity( font, a ):
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s = font.findEncodingSlot( a )
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v = formatted_hex_value( s )
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if s == -1:
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v = ' '
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print >> sys.stderr, font.fullname, 'Missing glyph: ' + a
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elif not codepointIsInSomeRange( s ):
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print >> sys.stderr, font.fullname, 'Non-unicode: ' + v
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sys.stdout.write( v )
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def printpair( font, p, q ):
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printentity( font, p )
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printentity( font, q )
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sys.stdout.write( ' ' )
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def formatted_hex_value( n ):
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return '%s%0.4x%s' %( "&#x", n, ";" )
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def printlist( lst ):
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s = ''
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delim = ''
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for m in lst:
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s += delim + m
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delim = ' '
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print s
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print preamble
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#print_kerns( '/home/swhite/font_stuff/urwsr-ttf/URWPalladioL-Roman-test.sfd' )
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print_kerns( '../../sfd/FreeSerif.sfd' )
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print_kerns( '../../sfd/FreeSerifItalic.sfd' )
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print_kerns( '../../sfd/FreeSerifBold.sfd' )
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print_kerns( '../../sfd/FreeSerifBoldItalic.sfd' )
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print_kerns( '../../sfd/FreeSans.sfd' )
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print_kerns( '../../sfd/FreeSansOblique.sfd' )
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print_kerns( '../../sfd/FreeSansBold.sfd' )
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print_kerns( '../../sfd/FreeSansBoldOblique.sfd' )
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print_kerns( '../../sfd/FreeMono.sfd' )
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print_kerns( '../../sfd/FreeMonoOblique.sfd' )
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print_kerns( '../../sfd/FreeMonoBold.sfd' )
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print_kerns( '../../sfd/FreeMonoBoldOblique.sfd' )
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print postamble
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