Method: #CheckTTF

Defined in:
lib/makefont.rb

#CheckTTF(file) ⇒ Object 



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# File 'lib/makefont.rb', line 1590

def CheckTTF(file)

    rl = false
    pp = false
    e  = false

    # Check if font license allows embedding
    File.open(file, 'rb') do |f|

        # Extract number of tables
        f.seek(4, IO::SEEK_CUR)
	nb = ReadShort(f)
        f.seek(6, IO::SEEK_CUR)

        # Seek OS/2 table
	found = false
        0.upto(nb - 1) do |i|
            if f.read(4) == 'OS/2' then
                found = true
                break
            end

           f.seek(12, IO::SEEK_CUR)
        end

	if ! found then
            return
        end

        f.seek(4, IO::SEEK_CUR)
        offset = ReadLong(f)
        f.seek(offset, IO::SEEK_SET)

        # Extract fsType flags
        f.seek(8, IO::SEEK_CUR)
	fsType = ReadShort(f)

	rl = (fsType & 0x02) != 0
	pp = (fsType & 0x04) != 0
	e  = (fsType & 0x08) != 0
    end

    if rl && ( ! pp) && ( ! e) then
        puts 'Warning: font license does not allow embedding'
    end
end