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Contents
# -*- encoding: utf-8 -*-
require 'test_helper'
require 'stringio'
require 'hexapdf/font/true_type'
describe HexaPDF::Font::TrueType::Subsetter do
before do
font_file = File.join(TEST_DATA_DIR, "fonts", "Ubuntu-Title.ttf")
@font = HexaPDF::Font::TrueType::Font.new(File.open(font_file))
@subsetter = HexaPDF::Font::TrueType::Subsetter.new(@font)
end
after do
@font.io.close
end
it "adds glyphs to the subset" do
assert_equal(1, @subsetter.use_glyph(5))
assert_equal(2, @subsetter.use_glyph(6))
assert_equal(1, @subsetter.use_glyph(5))
end
it "returns the subset glyph ID for already subset glyphs" do
assert_nil(@subsetter.subset_glyph_id(5))
value = @subsetter.use_glyph(5)
assert_equal(value, @subsetter.subset_glyph_id(5))
end
it "creates the subset font file" do
gid = @font[:cmap].preferred_table[0x41]
@subsetter.use_glyph(gid)
subset = HexaPDF::Font::TrueType::Font.new(StringIO.new(@subsetter.build_font))
assert(Time.now - subset[:head].modified < 10)
assert_equal(2, subset[:maxp].num_glyphs)
assert_equal(2, subset[:hhea].num_of_long_hor_metrics)
assert_equal(3, subset[:loca].offsets.length)
assert_equal(subset[:hmtx][0], @font[:hmtx][0])
assert_equal(subset[:hmtx][1], @font[:hmtx][gid])
assert_equal(subset[:glyf][1].raw_data, @font[:glyf][gid].raw_data)
end
it "correctly subsets compound glyphs" do
font_file = "/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf"
skip unless File.exist?(font_file)
begin
@font = HexaPDF::Font::TrueType::Font.new(File.open(font_file))
@subsetter = HexaPDF::Font::TrueType::Subsetter.new(@font)
@subsetter.use_glyph(@font[:cmap].preferred_table['À'.ord])
subset = HexaPDF::Font::TrueType::Font.new(StringIO.new(@subsetter.build_font))
assert_equal(4, subset[:maxp].num_glyphs)
assert_equal([2, 3], subset[:glyf][1].components)
ensure
@font.io.close
end
end
end
Version data entries
31 entries across 31 versions & 1 rubygems