class TTFunk::Table::Sbix
Constants
- BitmapData
Attributes
flags[R]
num_strikes[R]
strikes[R]
version[R]
Public Instance Methods
all_bitmap_data_for(glyph_id)
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# File lib/ttfunk/table/sbix.rb, line 32 def all_bitmap_data_for(glyph_id) strikes.each_index.map do |strike_index| bitmap_data_for(glyph_id, strike_index) end.compact end
bitmap_data_for(glyph_id, strike_index)
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# File lib/ttfunk/table/sbix.rb, line 13 def bitmap_data_for(glyph_id, strike_index) strike = strikes[strike_index] return if strike.nil? glyph_offset = strike[:glyph_data_offset][glyph_id] next_glyph_offset = strike[:glyph_data_offset][glyph_id + 1] if glyph_offset && next_glyph_offset bytes = next_glyph_offset - glyph_offset if bytes > 0 parse_from(offset + strike[:offset] + glyph_offset) do x, y, type = read(8, "s2A4") data = StringIO.new(io.read(bytes - 8)) BitmapData.new(x, y, type, data, strike[:ppem], strike[:resolution]) end end end end
Private Instance Methods
parse!()
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# File lib/ttfunk/table/sbix.rb, line 40 def parse! @version, @flags, @num_strikes = read(8, "n2N") strike_offsets = num_strikes.times.map { read(4, "N").first } @strikes = strike_offsets.map do |strike_offset| parse_from(offset + strike_offset) do ppem, resolution = read(4, "n2") data_offsets = (file.maximum_profile.num_glyphs + 1).times.map { read(4, "N").first } { ppem: ppem, resolution: resolution, offset: strike_offset, glyph_data_offset: data_offsets } end end end