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# -*- coding: utf-8 -*-
# ====================================================================
# Copyright (c) 2011-2011 Open Source Applications Foundation.
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
# ====================================================================
#
import sys, os
from unittest import TestCase, main
from icu import *
try:
from fontTools.ttLib import TTFont
except ImportError, e:
print >>sys.stderr, "\nfontTools package not found, skipping LayoutEngine tests\n"
class TTXLEFont(LEFontInstance):
def __init__(self, fname, size=12):
super(TTXLEFont, self).__init__()
self.ttx = TTFont(fname)
self.size = size
self.upem = self.ttx['head'].unitsPerEm
self.cmap = self.ttx['cmap'].getcmap(3, 1).cmap
def getFontTable(self, table):
return self.ttx.getTableData(table)
def getAscent(self):
self.ttx['hhea'].ascent * self.size * 1. / self.upem
def getDescent(self):
self.ttx['hhea'].descent * self.size * 1. / self.upem
def getLeading(self):
self.ttx['hhea'].lineGap * self.size * 1. / self.upem
def getUnitsPerEm(self):
return self.upem
def mapCharToGlyph(self, code):
return self.ttx.getGlyphID(self.cmap[code])
def getGlyphAdvance(self, glyph):
if glyph >= self.ttx['maxp'].numGlyphs:
return (0., 0.)
name = self.ttx.getGlyphName(glyph)
x = self.ttx['hmtx'][name][0] * self.size * 1. / self.upem
if 'vmtx' in self.ttx:
y = self.ttx['vmtx'][name][0] * self.size * 1. / self.upem
else:
y = 0.
return (x, y)
def getGlyphPoint(self, glyph, point):
return (0., 0.)
def getXPixelsPerEm(self):
return self.size
def getYPixelsPerEm(self):
return self.size
def getScaleFactorX(self):
return 1.
def getScaleFactorY(self):
return 1.
try:
import fontTools
except ImportError:
pass
else:
class TestLayoutEngine(TestCase):
def filePath(self, name):
module = sys.modules[TestLayoutEngine.__module__].__file__
return os.path.join(os.path.dirname(module), name)
def setUp(self):
self.font = TTXLEFont(self.filePath("lohit_hi.ttf"))
self.layout = LayoutEngine.layoutEngineFactory(self.font,
ScriptCode.deva,
LanguageCode.nul)
def testHello(self):
self.layout.layoutChars(u"नमस्ते दुनिया")
self.assertEqual(self.layout.getGlyphCount(), 13)
if __name__ == "__main__":
try:
import fontTools
except ImportError:
pass
else:
main()
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