1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
|
# -*- 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, six
from unittest import TestCase, main
from icu import *
try:
if ICU_VERSION >= '58':
raise NotImplementedError
from fontTools.ttLib import TTFont
except ImportError as e:
sys.stderr.write("\nfontTools package not found, skipping LayoutEngine tests\n")
except NotImplementedError:
sys.stderr.write("\nLayoutEngine not available in ICU %s" %(ICU_VERSION))
else:
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:
if ICU_VERSION >= '58':
raise NotImplementedError
import fontTools
except ImportError:
pass
except NotImplementedError:
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:
if ICU_VERSION >= '58':
raise NotImplementedError
import fontTools
except ImportError:
pass
except NotImplementedError:
pass
else:
main()
|
