Method: #MakeFontDescriptor

Defined in:

lib/makefont.rb

#MakeFontDescriptor(fm, symbolic) ⇒ Object

# File 'lib/makefont.rb', line 1472

def MakeFontDescriptor(fm, symbolic)

    # Ascent
    asc = fm['Ascender'] ? fm['Ascender'] : 1000
    fd = "{\n        'Ascent' => '#{asc}'"

    # Descent
    desc = fm['Descender'] ? fm['Descender'] : -200
    fd += ", 'Descent' => '#{desc}'"

    # CapHeight
    if fm['CapHeight'] then
        ch = fm['CapHeight']
    elsif fm['CapXHeight']
        ch = fm['CapXHeight']
    else
        ch = asc
    end
    fd += ", 'CapHeight' => '#{ch}'"

    # Flags
    flags = 0

    if fm['IsFixedPitch'] then
        flags += 1 << 0
    end

    if symbolic then
        flags += 1 << 2
    else
        flags += 1 << 5
    end

    if fm['ItalicAngle'] && (fm['ItalicAngle'] != 0) then
        flags += 1 << 6
    end

    fd += ",\n        'Flags' => '#{flags}'"

    # FontBBox
    if fm['FontBBox'] then
        fbb = fm['FontBBox'].gsub(/,/, ' ')
    else
        fbb = "[0 #{desc - 100} 1000 #{asc + 100}]"
    end

    fd += ", 'FontBBox' => '#{fbb}'"

    # ItalicAngle
    ia = fm['ItalicAngle'] ? fm['ItalicAngle'] : 0
    fd += ",\n        'ItalicAngle' => '#{ia}'"

    # StemV
    if fm['StdVW'] then
        stemv = fm['StdVW']
    elsif fm['Weight'] && (/bold|black/i =~ fm['Weight'])
        stemv = 120
    else
        stemv = 70
    end

    fd += ", 'StemV' => '#{stemv}'"

    # MissingWidth
    if fm['MissingWidth'] then
        fd += ", 'MissingWidth' => '#{fm['MissingWidth']}'"
    end

    fd += "\n        }"
    return fd
end