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981 lines
36 KiB
981 lines
36 KiB
from fontTools.ttLib import TTFont, newTable
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from fontTools.varLib import build, load_designspace
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from fontTools.varLib.errors import VarLibValidationError
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import fontTools.varLib.errors as varLibErrors
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from fontTools.varLib.mutator import instantiateVariableFont
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from fontTools.varLib import main as varLib_main, load_masters
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from fontTools.varLib import set_default_weight_width_slant
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from fontTools.designspaceLib import (
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DesignSpaceDocumentError, DesignSpaceDocument, SourceDescriptor,
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)
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from fontTools.feaLib.builder import addOpenTypeFeaturesFromString
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import difflib
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from io import BytesIO
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import os
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import shutil
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import sys
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import tempfile
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import unittest
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import pytest
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def reload_font(font):
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"""(De)serialize to get final binary layout."""
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buf = BytesIO()
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font.save(buf)
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# Close the font to release filesystem resources so that on Windows the tearDown
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# method can successfully remove the temporary directory created during setUp.
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font.close()
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buf.seek(0)
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return TTFont(buf)
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class BuildTest(unittest.TestCase):
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def __init__(self, methodName):
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unittest.TestCase.__init__(self, methodName)
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# Python 3 renamed assertRaisesRegexp to assertRaisesRegex,
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# and fires deprecation warnings if a program uses the old name.
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if not hasattr(self, "assertRaisesRegex"):
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self.assertRaisesRegex = self.assertRaisesRegexp
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def setUp(self):
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self.tempdir = None
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self.num_tempfiles = 0
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def tearDown(self):
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if self.tempdir:
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shutil.rmtree(self.tempdir)
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def get_test_input(self, test_file_or_folder, copy=False):
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parent_dir = os.path.dirname(__file__)
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path = os.path.join(parent_dir, "data", test_file_or_folder)
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if copy:
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copied_path = os.path.join(self.tempdir, test_file_or_folder)
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shutil.copy2(path, copied_path)
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return copied_path
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else:
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return path
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@staticmethod
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def get_test_output(test_file_or_folder):
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path, _ = os.path.split(__file__)
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return os.path.join(path, "data", "test_results", test_file_or_folder)
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@staticmethod
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def get_file_list(folder, suffix, prefix=''):
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all_files = os.listdir(folder)
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file_list = []
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for p in all_files:
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if p.startswith(prefix) and p.endswith(suffix):
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file_list.append(os.path.abspath(os.path.join(folder, p)))
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return file_list
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def temp_path(self, suffix):
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self.temp_dir()
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self.num_tempfiles += 1
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return os.path.join(self.tempdir,
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"tmp%d%s" % (self.num_tempfiles, suffix))
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def temp_dir(self):
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if not self.tempdir:
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self.tempdir = tempfile.mkdtemp()
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def read_ttx(self, path):
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lines = []
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with open(path, "r", encoding="utf-8") as ttx:
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for line in ttx.readlines():
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# Elide ttFont attributes because ttLibVersion may change,
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# and use os-native line separators so we can run difflib.
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if line.startswith("<ttFont "):
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lines.append("<ttFont>" + os.linesep)
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else:
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lines.append(line.rstrip() + os.linesep)
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return lines
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def expect_ttx(self, font, expected_ttx, tables):
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path = self.temp_path(suffix=".ttx")
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font.saveXML(path, tables=tables)
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actual = self.read_ttx(path)
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expected = self.read_ttx(expected_ttx)
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if actual != expected:
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for line in difflib.unified_diff(
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expected, actual, fromfile=expected_ttx, tofile=path):
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sys.stdout.write(line)
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self.fail("TTX output is different from expected")
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def check_ttx_dump(self, font, expected_ttx, tables, suffix):
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"""Ensure the TTX dump is the same after saving and reloading the font."""
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path = self.temp_path(suffix=suffix)
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font.save(path)
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self.expect_ttx(TTFont(path), expected_ttx, tables)
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def compile_font(self, path, suffix, temp_dir):
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ttx_filename = os.path.basename(path)
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savepath = os.path.join(temp_dir, ttx_filename.replace('.ttx', suffix))
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font = TTFont(recalcBBoxes=False, recalcTimestamp=False)
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font.importXML(path)
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font.save(savepath, reorderTables=None)
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return font, savepath
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def _run_varlib_build_test(self, designspace_name, font_name, tables,
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expected_ttx_name, save_before_dump=False,
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post_process_master=None):
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suffix = '.ttf'
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ds_path = self.get_test_input(designspace_name + '.designspace')
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ufo_dir = self.get_test_input('master_ufo')
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ttx_dir = self.get_test_input('master_ttx_interpolatable_ttf')
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self.temp_dir()
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ttx_paths = self.get_file_list(ttx_dir, '.ttx', font_name + '-')
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for path in ttx_paths:
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font, savepath = self.compile_font(path, suffix, self.tempdir)
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if post_process_master is not None:
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post_process_master(font, savepath)
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finder = lambda s: s.replace(ufo_dir, self.tempdir).replace('.ufo', suffix)
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varfont, model, _ = build(ds_path, finder)
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if save_before_dump:
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# some data (e.g. counts printed in TTX inline comments) is only
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# calculated at compile time, so before we can compare the TTX
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# dumps we need to save to a temporary stream, and realod the font
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varfont = reload_font(varfont)
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expected_ttx_path = self.get_test_output(expected_ttx_name + '.ttx')
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self.expect_ttx(varfont, expected_ttx_path, tables)
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self.check_ttx_dump(varfont, expected_ttx_path, tables, suffix)
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# -----
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# Tests
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# -----
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def test_varlib_build_ttf(self):
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"""Designspace file contains <axes> element."""
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self._run_varlib_build_test(
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designspace_name='Build',
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font_name='TestFamily',
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tables=['GDEF', 'HVAR', 'MVAR', 'fvar', 'gvar'],
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expected_ttx_name='Build'
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)
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def test_varlib_build_no_axes_ttf(self):
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"""Designspace file does not contain an <axes> element."""
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ds_path = self.get_test_input('InterpolateLayout3.designspace')
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with self.assertRaisesRegex(DesignSpaceDocumentError, "No axes defined"):
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build(ds_path)
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def test_varlib_avar_single_axis(self):
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"""Designspace file contains a 'weight' axis with <map> elements
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modifying the normalization mapping. An 'avar' table is generated.
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"""
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test_name = 'BuildAvarSingleAxis'
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self._run_varlib_build_test(
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designspace_name=test_name,
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font_name='TestFamily3',
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tables=['avar'],
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expected_ttx_name=test_name
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)
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def test_varlib_avar_with_identity_maps(self):
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"""Designspace file contains two 'weight' and 'width' axes both with
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<map> elements.
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The 'width' axis only contains identity mappings, however the resulting
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avar segment will not be empty but will contain the default axis value
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maps: {-1.0: -1.0, 0.0: 0.0, 1.0: 1.0}.
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This is to work around an issue with some rasterizers:
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https://github.com/googlei18n/fontmake/issues/295
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https://github.com/fonttools/fonttools/issues/1011
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"""
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test_name = 'BuildAvarIdentityMaps'
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self._run_varlib_build_test(
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designspace_name=test_name,
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font_name='TestFamily3',
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tables=['avar'],
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expected_ttx_name=test_name
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)
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def test_varlib_avar_empty_axis(self):
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"""Designspace file contains two 'weight' and 'width' axes, but
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only one axis ('weight') has some <map> elements.
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Even if no <map> elements are defined for the 'width' axis, the
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resulting avar segment still contains the default axis value maps:
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{-1.0: -1.0, 0.0: 0.0, 1.0: 1.0}.
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This is again to work around an issue with some rasterizers:
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https://github.com/googlei18n/fontmake/issues/295
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https://github.com/fonttools/fonttools/issues/1011
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"""
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test_name = 'BuildAvarEmptyAxis'
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self._run_varlib_build_test(
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designspace_name=test_name,
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font_name='TestFamily3',
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tables=['avar'],
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expected_ttx_name=test_name
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)
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def test_varlib_build_feature_variations(self):
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"""Designspace file contains <rules> element, used to build
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GSUB FeatureVariations table.
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"""
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self._run_varlib_build_test(
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designspace_name="FeatureVars",
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font_name="TestFamily",
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tables=["fvar", "GSUB"],
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expected_ttx_name="FeatureVars",
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save_before_dump=True,
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)
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def test_varlib_build_feature_variations_custom_tag(self):
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"""Designspace file contains <rules> element, used to build
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GSUB FeatureVariations table.
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"""
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self._run_varlib_build_test(
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designspace_name="FeatureVarsCustomTag",
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font_name="TestFamily",
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tables=["fvar", "GSUB"],
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expected_ttx_name="FeatureVarsCustomTag",
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save_before_dump=True,
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)
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def test_varlib_build_feature_variations_whole_range(self):
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"""Designspace file contains <rules> element specifying the entire design
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space, used to build GSUB FeatureVariations table.
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"""
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self._run_varlib_build_test(
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designspace_name="FeatureVarsWholeRange",
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font_name="TestFamily",
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tables=["fvar", "GSUB"],
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expected_ttx_name="FeatureVarsWholeRange",
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save_before_dump=True,
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)
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def test_varlib_build_feature_variations_whole_range_empty(self):
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"""Designspace file contains <rules> element without a condition, specifying
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the entire design space, used to build GSUB FeatureVariations table.
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"""
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self._run_varlib_build_test(
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designspace_name="FeatureVarsWholeRangeEmpty",
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font_name="TestFamily",
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tables=["fvar", "GSUB"],
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expected_ttx_name="FeatureVarsWholeRange",
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save_before_dump=True,
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)
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def test_varlib_build_feature_variations_with_existing_rclt(self):
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"""Designspace file contains <rules> element, used to build GSUB
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FeatureVariations table. <rules> is specified to do its OT processing
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"last", so a 'rclt' feature will be used or created. This test covers
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the case when a 'rclt' already exists in the masters.
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We dynamically add a 'rclt' feature to an existing set of test
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masters, to avoid adding more test data.
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The multiple languages are done to verify whether multiple existing
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'rclt' features are updated correctly.
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"""
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def add_rclt(font, savepath):
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features = """
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languagesystem DFLT dflt;
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languagesystem latn dflt;
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languagesystem latn NLD;
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feature rclt {
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script latn;
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language NLD;
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lookup A {
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sub uni0041 by uni0061;
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} A;
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language dflt;
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lookup B {
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sub uni0041 by uni0061;
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} B;
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} rclt;
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"""
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addOpenTypeFeaturesFromString(font, features)
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font.save(savepath)
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self._run_varlib_build_test(
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designspace_name="FeatureVars",
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font_name="TestFamily",
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tables=["fvar", "GSUB"],
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expected_ttx_name="FeatureVars_rclt",
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save_before_dump=True,
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post_process_master=add_rclt,
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)
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def test_varlib_gvar_explicit_delta(self):
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"""The variable font contains a composite glyph odieresis which does not
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need a gvar entry, because all its deltas are 0, but it must be added
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anyway to work around an issue with macOS 10.14.
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https://github.com/fonttools/fonttools/issues/1381
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"""
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test_name = 'BuildGvarCompositeExplicitDelta'
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self._run_varlib_build_test(
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designspace_name=test_name,
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font_name='TestFamily4',
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tables=['gvar'],
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expected_ttx_name=test_name
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)
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def test_varlib_nonmarking_CFF2(self):
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self.temp_dir()
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ds_path = self.get_test_input('TestNonMarkingCFF2.designspace', copy=True)
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ttx_dir = self.get_test_input("master_non_marking_cff2")
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expected_ttx_path = self.get_test_output("TestNonMarkingCFF2.ttx")
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for path in self.get_file_list(ttx_dir, '.ttx', 'TestNonMarkingCFF2_'):
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self.compile_font(path, ".otf", self.tempdir)
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ds = DesignSpaceDocument.fromfile(ds_path)
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for source in ds.sources:
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source.path = os.path.join(
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self.tempdir, os.path.basename(source.filename).replace(".ufo", ".otf")
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)
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ds.updatePaths()
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varfont, _, _ = build(ds)
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varfont = reload_font(varfont)
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tables = ["CFF2"]
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self.expect_ttx(varfont, expected_ttx_path, tables)
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def test_varlib_build_CFF2(self):
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self.temp_dir()
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ds_path = self.get_test_input('TestCFF2.designspace', copy=True)
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ttx_dir = self.get_test_input("master_cff2")
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expected_ttx_path = self.get_test_output("BuildTestCFF2.ttx")
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for path in self.get_file_list(ttx_dir, '.ttx', 'TestCFF2_'):
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self.compile_font(path, ".otf", self.tempdir)
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ds = DesignSpaceDocument.fromfile(ds_path)
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for source in ds.sources:
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source.path = os.path.join(
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self.tempdir, os.path.basename(source.filename).replace(".ufo", ".otf")
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)
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ds.updatePaths()
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varfont, _, _ = build(ds)
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varfont = reload_font(varfont)
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tables = ["fvar", "CFF2"]
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self.expect_ttx(varfont, expected_ttx_path, tables)
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def test_varlib_build_CFF2_from_CFF2(self):
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self.temp_dir()
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ds_path = self.get_test_input('TestCFF2Input.designspace', copy=True)
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ttx_dir = self.get_test_input("master_cff2_input")
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expected_ttx_path = self.get_test_output("BuildTestCFF2.ttx")
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for path in self.get_file_list(ttx_dir, '.ttx', 'TestCFF2_'):
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self.compile_font(path, ".otf", self.tempdir)
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ds = DesignSpaceDocument.fromfile(ds_path)
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for source in ds.sources:
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source.path = os.path.join(
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self.tempdir, os.path.basename(source.filename).replace(".ufo", ".otf")
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)
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ds.updatePaths()
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varfont, _, _ = build(ds)
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varfont = reload_font(varfont)
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tables = ["fvar", "CFF2"]
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self.expect_ttx(varfont, expected_ttx_path, tables)
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def test_varlib_build_sparse_CFF2(self):
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self.temp_dir()
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ds_path = self.get_test_input('TestSparseCFF2VF.designspace', copy=True)
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ttx_dir = self.get_test_input("master_sparse_cff2")
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expected_ttx_path = self.get_test_output("TestSparseCFF2VF.ttx")
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for path in self.get_file_list(ttx_dir, '.ttx', 'MasterSet_Kanji-'):
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self.compile_font(path, ".otf", self.tempdir)
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ds = DesignSpaceDocument.fromfile(ds_path)
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for source in ds.sources:
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source.path = os.path.join(
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self.tempdir, os.path.basename(source.filename).replace(".ufo", ".otf")
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)
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ds.updatePaths()
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varfont, _, _ = build(ds)
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varfont = reload_font(varfont)
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tables = ["fvar", "CFF2"]
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self.expect_ttx(varfont, expected_ttx_path, tables)
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def test_varlib_build_vpal(self):
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self.temp_dir()
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ds_path = self.get_test_input('test_vpal.designspace', copy=True)
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ttx_dir = self.get_test_input("master_vpal_test")
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expected_ttx_path = self.get_test_output("test_vpal.ttx")
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for path in self.get_file_list(ttx_dir, '.ttx', 'master_vpal_test_'):
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self.compile_font(path, ".otf", self.tempdir)
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ds = DesignSpaceDocument.fromfile(ds_path)
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for source in ds.sources:
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source.path = os.path.join(
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self.tempdir, os.path.basename(source.filename).replace(".ufo", ".otf")
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)
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ds.updatePaths()
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varfont, _, _ = build(ds)
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varfont = reload_font(varfont)
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tables = ["GPOS"]
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self.expect_ttx(varfont, expected_ttx_path, tables)
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def test_varlib_main_ttf(self):
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"""Mostly for testing varLib.main()
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"""
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suffix = '.ttf'
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ds_path = self.get_test_input('Build.designspace')
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ttx_dir = self.get_test_input('master_ttx_interpolatable_ttf')
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self.temp_dir()
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ttf_dir = os.path.join(self.tempdir, 'master_ttf_interpolatable')
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os.makedirs(ttf_dir)
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ttx_paths = self.get_file_list(ttx_dir, '.ttx', 'TestFamily-')
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for path in ttx_paths:
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self.compile_font(path, suffix, ttf_dir)
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ds_copy = os.path.join(self.tempdir, 'BuildMain.designspace')
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shutil.copy2(ds_path, ds_copy)
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# by default, varLib.main finds master TTFs inside a
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# 'master_ttf_interpolatable' subfolder in current working dir
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cwd = os.getcwd()
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os.chdir(self.tempdir)
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try:
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varLib_main([ds_copy])
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finally:
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os.chdir(cwd)
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varfont_path = os.path.splitext(ds_copy)[0] + '-VF' + suffix
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self.assertTrue(os.path.exists(varfont_path))
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|
|
|
# try again passing an explicit --master-finder
|
|
os.remove(varfont_path)
|
|
finder = "%s/master_ttf_interpolatable/{stem}.ttf" % self.tempdir
|
|
varLib_main([ds_copy, "--master-finder", finder])
|
|
self.assertTrue(os.path.exists(varfont_path))
|
|
|
|
# and also with explicit -o output option
|
|
os.remove(varfont_path)
|
|
varfont_path = os.path.splitext(varfont_path)[0] + "-o" + suffix
|
|
varLib_main([ds_copy, "-o", varfont_path, "--master-finder", finder])
|
|
self.assertTrue(os.path.exists(varfont_path))
|
|
|
|
varfont = TTFont(varfont_path)
|
|
tables = [table_tag for table_tag in varfont.keys() if table_tag != 'head']
|
|
expected_ttx_path = self.get_test_output('BuildMain.ttx')
|
|
self.expect_ttx(varfont, expected_ttx_path, tables)
|
|
|
|
def test_varlib_build_from_ds_object_in_memory_ttfonts(self):
|
|
ds_path = self.get_test_input("Build.designspace")
|
|
ttx_dir = self.get_test_input("master_ttx_interpolatable_ttf")
|
|
expected_ttx_path = self.get_test_output("BuildMain.ttx")
|
|
|
|
self.temp_dir()
|
|
for path in self.get_file_list(ttx_dir, '.ttx', 'TestFamily-'):
|
|
self.compile_font(path, ".ttf", self.tempdir)
|
|
|
|
ds = DesignSpaceDocument.fromfile(ds_path)
|
|
for source in ds.sources:
|
|
filename = os.path.join(
|
|
self.tempdir, os.path.basename(source.filename).replace(".ufo", ".ttf")
|
|
)
|
|
source.font = TTFont(
|
|
filename, recalcBBoxes=False, recalcTimestamp=False, lazy=True
|
|
)
|
|
source.filename = None # Make sure no file path gets into build()
|
|
|
|
varfont, _, _ = build(ds)
|
|
varfont = reload_font(varfont)
|
|
tables = [table_tag for table_tag in varfont.keys() if table_tag != "head"]
|
|
self.expect_ttx(varfont, expected_ttx_path, tables)
|
|
|
|
def test_varlib_build_from_ttf_paths(self):
|
|
self.temp_dir()
|
|
|
|
ds_path = self.get_test_input("Build.designspace", copy=True)
|
|
ttx_dir = self.get_test_input("master_ttx_interpolatable_ttf")
|
|
expected_ttx_path = self.get_test_output("BuildMain.ttx")
|
|
|
|
for path in self.get_file_list(ttx_dir, '.ttx', 'TestFamily-'):
|
|
self.compile_font(path, ".ttf", self.tempdir)
|
|
|
|
ds = DesignSpaceDocument.fromfile(ds_path)
|
|
for source in ds.sources:
|
|
source.path = os.path.join(
|
|
self.tempdir, os.path.basename(source.filename).replace(".ufo", ".ttf")
|
|
)
|
|
ds.updatePaths()
|
|
|
|
varfont, _, _ = build(ds)
|
|
varfont = reload_font(varfont)
|
|
tables = [table_tag for table_tag in varfont.keys() if table_tag != "head"]
|
|
self.expect_ttx(varfont, expected_ttx_path, tables)
|
|
|
|
def test_varlib_build_from_ttx_paths(self):
|
|
ds_path = self.get_test_input("Build.designspace")
|
|
ttx_dir = self.get_test_input("master_ttx_interpolatable_ttf")
|
|
expected_ttx_path = self.get_test_output("BuildMain.ttx")
|
|
|
|
ds = DesignSpaceDocument.fromfile(ds_path)
|
|
for source in ds.sources:
|
|
source.path = os.path.join(
|
|
ttx_dir, os.path.basename(source.filename).replace(".ufo", ".ttx")
|
|
)
|
|
ds.updatePaths()
|
|
|
|
varfont, _, _ = build(ds)
|
|
varfont = reload_font(varfont)
|
|
tables = [table_tag for table_tag in varfont.keys() if table_tag != "head"]
|
|
self.expect_ttx(varfont, expected_ttx_path, tables)
|
|
|
|
def test_varlib_build_sparse_masters(self):
|
|
ds_path = self.get_test_input("SparseMasters.designspace")
|
|
expected_ttx_path = self.get_test_output("SparseMasters.ttx")
|
|
|
|
varfont, _, _ = build(ds_path)
|
|
varfont = reload_font(varfont)
|
|
tables = [table_tag for table_tag in varfont.keys() if table_tag != "head"]
|
|
self.expect_ttx(varfont, expected_ttx_path, tables)
|
|
|
|
def test_varlib_build_lazy_masters(self):
|
|
# See https://github.com/fonttools/fonttools/issues/1808
|
|
ds_path = self.get_test_input("SparseMasters.designspace")
|
|
expected_ttx_path = self.get_test_output("SparseMasters.ttx")
|
|
|
|
def _open_font(master_path, master_finder=lambda s: s):
|
|
font = TTFont()
|
|
font.importXML(master_path)
|
|
buf = BytesIO()
|
|
font.save(buf, reorderTables=False)
|
|
buf.seek(0)
|
|
font = TTFont(buf, lazy=True) # reopen in lazy mode, to reproduce #1808
|
|
return font
|
|
|
|
ds = DesignSpaceDocument.fromfile(ds_path)
|
|
ds.loadSourceFonts(_open_font)
|
|
varfont, _, _ = build(ds)
|
|
varfont = reload_font(varfont)
|
|
tables = [table_tag for table_tag in varfont.keys() if table_tag != "head"]
|
|
self.expect_ttx(varfont, expected_ttx_path, tables)
|
|
|
|
def test_varlib_build_sparse_masters_MVAR(self):
|
|
import fontTools.varLib.mvar
|
|
|
|
ds_path = self.get_test_input("SparseMasters.designspace")
|
|
ds = DesignSpaceDocument.fromfile(ds_path)
|
|
load_masters(ds)
|
|
|
|
# Trigger MVAR generation so varLib is forced to create deltas with a
|
|
# sparse master inbetween.
|
|
font_0_os2 = ds.sources[0].font["OS/2"]
|
|
font_0_os2.sTypoAscender = 1
|
|
font_0_os2.sTypoDescender = 1
|
|
font_0_os2.sTypoLineGap = 1
|
|
font_0_os2.usWinAscent = 1
|
|
font_0_os2.usWinDescent = 1
|
|
font_0_os2.sxHeight = 1
|
|
font_0_os2.sCapHeight = 1
|
|
font_0_os2.ySubscriptXSize = 1
|
|
font_0_os2.ySubscriptYSize = 1
|
|
font_0_os2.ySubscriptXOffset = 1
|
|
font_0_os2.ySubscriptYOffset = 1
|
|
font_0_os2.ySuperscriptXSize = 1
|
|
font_0_os2.ySuperscriptYSize = 1
|
|
font_0_os2.ySuperscriptXOffset = 1
|
|
font_0_os2.ySuperscriptYOffset = 1
|
|
font_0_os2.yStrikeoutSize = 1
|
|
font_0_os2.yStrikeoutPosition = 1
|
|
font_0_vhea = newTable("vhea")
|
|
font_0_vhea.ascent = 1
|
|
font_0_vhea.descent = 1
|
|
font_0_vhea.lineGap = 1
|
|
font_0_vhea.caretSlopeRise = 1
|
|
font_0_vhea.caretSlopeRun = 1
|
|
font_0_vhea.caretOffset = 1
|
|
ds.sources[0].font["vhea"] = font_0_vhea
|
|
font_0_hhea = ds.sources[0].font["hhea"]
|
|
font_0_hhea.caretSlopeRise = 1
|
|
font_0_hhea.caretSlopeRun = 1
|
|
font_0_hhea.caretOffset = 1
|
|
font_0_post = ds.sources[0].font["post"]
|
|
font_0_post.underlineThickness = 1
|
|
font_0_post.underlinePosition = 1
|
|
|
|
font_2_os2 = ds.sources[2].font["OS/2"]
|
|
font_2_os2.sTypoAscender = 800
|
|
font_2_os2.sTypoDescender = 800
|
|
font_2_os2.sTypoLineGap = 800
|
|
font_2_os2.usWinAscent = 800
|
|
font_2_os2.usWinDescent = 800
|
|
font_2_os2.sxHeight = 800
|
|
font_2_os2.sCapHeight = 800
|
|
font_2_os2.ySubscriptXSize = 800
|
|
font_2_os2.ySubscriptYSize = 800
|
|
font_2_os2.ySubscriptXOffset = 800
|
|
font_2_os2.ySubscriptYOffset = 800
|
|
font_2_os2.ySuperscriptXSize = 800
|
|
font_2_os2.ySuperscriptYSize = 800
|
|
font_2_os2.ySuperscriptXOffset = 800
|
|
font_2_os2.ySuperscriptYOffset = 800
|
|
font_2_os2.yStrikeoutSize = 800
|
|
font_2_os2.yStrikeoutPosition = 800
|
|
font_2_vhea = newTable("vhea")
|
|
font_2_vhea.ascent = 800
|
|
font_2_vhea.descent = 800
|
|
font_2_vhea.lineGap = 800
|
|
font_2_vhea.caretSlopeRise = 800
|
|
font_2_vhea.caretSlopeRun = 800
|
|
font_2_vhea.caretOffset = 800
|
|
ds.sources[2].font["vhea"] = font_2_vhea
|
|
font_2_hhea = ds.sources[2].font["hhea"]
|
|
font_2_hhea.caretSlopeRise = 800
|
|
font_2_hhea.caretSlopeRun = 800
|
|
font_2_hhea.caretOffset = 800
|
|
font_2_post = ds.sources[2].font["post"]
|
|
font_2_post.underlineThickness = 800
|
|
font_2_post.underlinePosition = 800
|
|
|
|
varfont, _, _ = build(ds)
|
|
mvar_tags = [vr.ValueTag for vr in varfont["MVAR"].table.ValueRecord]
|
|
assert all(tag in mvar_tags for tag in fontTools.varLib.mvar.MVAR_ENTRIES)
|
|
|
|
def test_varlib_build_VVAR_CFF2(self):
|
|
self.temp_dir()
|
|
|
|
ds_path = self.get_test_input('TestVVAR.designspace', copy=True)
|
|
ttx_dir = self.get_test_input("master_vvar_cff2")
|
|
expected_ttx_name = 'TestVVAR'
|
|
suffix = '.otf'
|
|
|
|
for path in self.get_file_list(ttx_dir, '.ttx', 'TestVVAR'):
|
|
font, savepath = self.compile_font(path, suffix, self.tempdir)
|
|
|
|
ds = DesignSpaceDocument.fromfile(ds_path)
|
|
for source in ds.sources:
|
|
source.path = os.path.join(
|
|
self.tempdir, os.path.basename(source.filename).replace(".ufo", suffix)
|
|
)
|
|
ds.updatePaths()
|
|
|
|
varfont, _, _ = build(ds)
|
|
varfont = reload_font(varfont)
|
|
|
|
expected_ttx_path = self.get_test_output(expected_ttx_name + '.ttx')
|
|
tables = ["VVAR"]
|
|
self.expect_ttx(varfont, expected_ttx_path, tables)
|
|
self.check_ttx_dump(varfont, expected_ttx_path, tables, suffix)
|
|
|
|
def test_varlib_build_BASE(self):
|
|
self.temp_dir()
|
|
|
|
ds_path = self.get_test_input('TestBASE.designspace', copy=True)
|
|
ttx_dir = self.get_test_input("master_base_test")
|
|
expected_ttx_name = 'TestBASE'
|
|
suffix = '.otf'
|
|
|
|
for path in self.get_file_list(ttx_dir, '.ttx', 'TestBASE'):
|
|
font, savepath = self.compile_font(path, suffix, self.tempdir)
|
|
|
|
ds = DesignSpaceDocument.fromfile(ds_path)
|
|
for source in ds.sources:
|
|
source.path = os.path.join(
|
|
self.tempdir, os.path.basename(source.filename).replace(".ufo", suffix)
|
|
)
|
|
ds.updatePaths()
|
|
|
|
varfont, _, _ = build(ds)
|
|
varfont = reload_font(varfont)
|
|
|
|
expected_ttx_path = self.get_test_output(expected_ttx_name + '.ttx')
|
|
tables = ["BASE"]
|
|
self.expect_ttx(varfont, expected_ttx_path, tables)
|
|
self.check_ttx_dump(varfont, expected_ttx_path, tables, suffix)
|
|
|
|
def test_varlib_build_single_master(self):
|
|
self._run_varlib_build_test(
|
|
designspace_name='SingleMaster',
|
|
font_name='TestFamily',
|
|
tables=['GDEF', 'HVAR', 'MVAR', 'STAT', 'fvar', 'cvar', 'gvar', 'name'],
|
|
expected_ttx_name='SingleMaster',
|
|
save_before_dump=True,
|
|
)
|
|
|
|
def test_kerning_merging(self):
|
|
"""Test the correct merging of class-based pair kerning.
|
|
|
|
Problem description at https://github.com/fonttools/fonttools/pull/1638.
|
|
Test font and Designspace generated by
|
|
https://gist.github.com/madig/183d0440c9f7d05f04bd1280b9664bd1.
|
|
"""
|
|
ds_path = self.get_test_input("KerningMerging.designspace")
|
|
ttx_dir = self.get_test_input("master_kerning_merging")
|
|
|
|
ds = DesignSpaceDocument.fromfile(ds_path)
|
|
for source in ds.sources:
|
|
ttx_dump = TTFont()
|
|
ttx_dump.importXML(
|
|
os.path.join(
|
|
ttx_dir, os.path.basename(source.filename).replace(".ttf", ".ttx")
|
|
)
|
|
)
|
|
source.font = reload_font(ttx_dump)
|
|
|
|
varfont, _, _ = build(ds)
|
|
varfont = reload_font(varfont)
|
|
|
|
class_kerning_tables = [
|
|
t
|
|
for l in varfont["GPOS"].table.LookupList.Lookup
|
|
for t in l.SubTable
|
|
if t.Format == 2
|
|
]
|
|
assert len(class_kerning_tables) == 1
|
|
class_kerning_table = class_kerning_tables[0]
|
|
|
|
# Test that no class kerned against class zero (containing all glyphs not
|
|
# classed) has a `XAdvDevice` table attached, which in the variable font
|
|
# context is a "VariationIndex" table and points to kerning deltas in the GDEF
|
|
# table. Variation deltas of any kerning class against class zero should
|
|
# probably never exist.
|
|
for class1_record in class_kerning_table.Class1Record:
|
|
class2_zero = class1_record.Class2Record[0]
|
|
assert getattr(class2_zero.Value1, "XAdvDevice", None) is None
|
|
|
|
# Assert the variable font's kerning table (without deltas) is equal to the
|
|
# default font's kerning table. The bug fixed in
|
|
# https://github.com/fonttools/fonttools/pull/1638 caused rogue kerning
|
|
# values to be written to the variable font.
|
|
assert _extract_flat_kerning(varfont, class_kerning_table) == {
|
|
("A", ".notdef"): 0,
|
|
("A", "A"): 0,
|
|
("A", "B"): -20,
|
|
("A", "C"): 0,
|
|
("A", "D"): -20,
|
|
("B", ".notdef"): 0,
|
|
("B", "A"): 0,
|
|
("B", "B"): 0,
|
|
("B", "C"): 0,
|
|
("B", "D"): 0,
|
|
}
|
|
|
|
instance_thin = instantiateVariableFont(varfont, {"wght": 100})
|
|
instance_thin_kerning_table = (
|
|
instance_thin["GPOS"].table.LookupList.Lookup[0].SubTable[0]
|
|
)
|
|
assert _extract_flat_kerning(instance_thin, instance_thin_kerning_table) == {
|
|
("A", ".notdef"): 0,
|
|
("A", "A"): 0,
|
|
("A", "B"): 0,
|
|
("A", "C"): 10,
|
|
("A", "D"): 0,
|
|
("B", ".notdef"): 0,
|
|
("B", "A"): 0,
|
|
("B", "B"): 0,
|
|
("B", "C"): 10,
|
|
("B", "D"): 0,
|
|
}
|
|
|
|
instance_black = instantiateVariableFont(varfont, {"wght": 900})
|
|
instance_black_kerning_table = (
|
|
instance_black["GPOS"].table.LookupList.Lookup[0].SubTable[0]
|
|
)
|
|
assert _extract_flat_kerning(instance_black, instance_black_kerning_table) == {
|
|
("A", ".notdef"): 0,
|
|
("A", "A"): 0,
|
|
("A", "B"): 0,
|
|
("A", "C"): 0,
|
|
("A", "D"): 40,
|
|
("B", ".notdef"): 0,
|
|
("B", "A"): 0,
|
|
("B", "B"): 0,
|
|
("B", "C"): 0,
|
|
("B", "D"): 40,
|
|
}
|
|
|
|
def test_designspace_fill_in_location(self):
|
|
ds_path = self.get_test_input("VarLibLocationTest.designspace")
|
|
ds = DesignSpaceDocument.fromfile(ds_path)
|
|
ds_loaded = load_designspace(ds)
|
|
|
|
assert ds_loaded.instances[0].location == {"weight": 0, "width": 50}
|
|
|
|
def test_varlib_build_incompatible_features(self):
|
|
with pytest.raises(
|
|
varLibErrors.ShouldBeConstant,
|
|
match = """
|
|
|
|
Couldn't merge the fonts, because some values were different, but should have
|
|
been the same. This happened while performing the following operation:
|
|
GPOS.table.FeatureList.FeatureCount
|
|
|
|
The problem is likely to be in Simple Two Axis Bold:
|
|
|
|
Incompatible features between masters.
|
|
Expected: kern, mark.
|
|
Got: kern.
|
|
"""):
|
|
|
|
self._run_varlib_build_test(
|
|
designspace_name="IncompatibleFeatures",
|
|
font_name="IncompatibleFeatures",
|
|
tables=["GPOS"],
|
|
expected_ttx_name="IncompatibleFeatures",
|
|
save_before_dump=True,
|
|
)
|
|
|
|
def test_varlib_build_incompatible_lookup_types(self):
|
|
with pytest.raises(
|
|
varLibErrors.MismatchedTypes,
|
|
match = r"MarkBasePos, instead saw PairPos"
|
|
):
|
|
self._run_varlib_build_test(
|
|
designspace_name="IncompatibleLookupTypes",
|
|
font_name="IncompatibleLookupTypes",
|
|
tables=["GPOS"],
|
|
expected_ttx_name="IncompatibleLookupTypes",
|
|
save_before_dump=True,
|
|
)
|
|
|
|
def test_varlib_build_incompatible_arrays(self):
|
|
with pytest.raises(
|
|
varLibErrors.ShouldBeConstant,
|
|
match = """
|
|
|
|
Couldn't merge the fonts, because some values were different, but should have
|
|
been the same. This happened while performing the following operation:
|
|
GPOS.table.ScriptList.ScriptCount
|
|
|
|
The problem is likely to be in Simple Two Axis Bold:
|
|
Expected to see .ScriptCount==1, instead saw 0"""
|
|
):
|
|
self._run_varlib_build_test(
|
|
designspace_name="IncompatibleArrays",
|
|
font_name="IncompatibleArrays",
|
|
tables=["GPOS"],
|
|
expected_ttx_name="IncompatibleArrays",
|
|
save_before_dump=True,
|
|
)
|
|
|
|
def test_load_masters_layerName_without_required_font():
|
|
ds = DesignSpaceDocument()
|
|
s = SourceDescriptor()
|
|
s.font = None
|
|
s.layerName = "Medium"
|
|
ds.addSource(s)
|
|
|
|
with pytest.raises(
|
|
VarLibValidationError,
|
|
match="specified a layer name but lacks the required TTFont object",
|
|
):
|
|
load_masters(ds)
|
|
|
|
|
|
def _extract_flat_kerning(font, pairpos_table):
|
|
extracted_kerning = {}
|
|
for glyph_name_1 in pairpos_table.Coverage.glyphs:
|
|
class_def_1 = pairpos_table.ClassDef1.classDefs.get(glyph_name_1, 0)
|
|
for glyph_name_2 in font.getGlyphOrder():
|
|
class_def_2 = pairpos_table.ClassDef2.classDefs.get(glyph_name_2, 0)
|
|
kern_value = (
|
|
pairpos_table.Class1Record[class_def_1]
|
|
.Class2Record[class_def_2]
|
|
.Value1.XAdvance
|
|
)
|
|
extracted_kerning[(glyph_name_1, glyph_name_2)] = kern_value
|
|
return extracted_kerning
|
|
|
|
|
|
@pytest.fixture
|
|
def ttFont():
|
|
f = TTFont()
|
|
f["OS/2"] = newTable("OS/2")
|
|
f["OS/2"].usWeightClass = 400
|
|
f["OS/2"].usWidthClass = 100
|
|
f["post"] = newTable("post")
|
|
f["post"].italicAngle = 0
|
|
return f
|
|
|
|
|
|
class SetDefaultWeightWidthSlantTest(object):
|
|
@pytest.mark.parametrize(
|
|
"location, expected",
|
|
[
|
|
({"wght": 0}, 1),
|
|
({"wght": 1}, 1),
|
|
({"wght": 100}, 100),
|
|
({"wght": 1000}, 1000),
|
|
({"wght": 1001}, 1000),
|
|
],
|
|
)
|
|
def test_wght(self, ttFont, location, expected):
|
|
set_default_weight_width_slant(ttFont, location)
|
|
|
|
assert ttFont["OS/2"].usWeightClass == expected
|
|
|
|
@pytest.mark.parametrize(
|
|
"location, expected",
|
|
[
|
|
({"wdth": 0}, 1),
|
|
({"wdth": 56}, 1),
|
|
({"wdth": 57}, 2),
|
|
({"wdth": 62.5}, 2),
|
|
({"wdth": 75}, 3),
|
|
({"wdth": 87.5}, 4),
|
|
({"wdth": 100}, 5),
|
|
({"wdth": 112.5}, 6),
|
|
({"wdth": 125}, 7),
|
|
({"wdth": 150}, 8),
|
|
({"wdth": 200}, 9),
|
|
({"wdth": 201}, 9),
|
|
({"wdth": 1000}, 9),
|
|
],
|
|
)
|
|
def test_wdth(self, ttFont, location, expected):
|
|
set_default_weight_width_slant(ttFont, location)
|
|
|
|
assert ttFont["OS/2"].usWidthClass == expected
|
|
|
|
@pytest.mark.parametrize(
|
|
"location, expected",
|
|
[
|
|
({"slnt": -91}, -90),
|
|
({"slnt": -90}, -90),
|
|
({"slnt": 0}, 0),
|
|
({"slnt": 11.5}, 11.5),
|
|
({"slnt": 90}, 90),
|
|
({"slnt": 91}, 90),
|
|
],
|
|
)
|
|
def test_slnt(self, ttFont, location, expected):
|
|
set_default_weight_width_slant(ttFont, location)
|
|
|
|
assert ttFont["post"].italicAngle == expected
|
|
|
|
def test_all(self, ttFont):
|
|
set_default_weight_width_slant(
|
|
ttFont, {"wght": 500, "wdth": 150, "slnt": -12.0}
|
|
)
|
|
|
|
assert ttFont["OS/2"].usWeightClass == 500
|
|
assert ttFont["OS/2"].usWidthClass == 8
|
|
assert ttFont["post"].italicAngle == -12.0
|
|
|
|
|
|
if __name__ == "__main__":
|
|
sys.exit(unittest.main())
|