Module: FreeTypeApiTest

Includes:
FreeType::API
Defined in:
lib/freetype/api_test.rb

Instance Method Summary collapse

Methods included from FreeType::API

library_version

Instance Method Details

#font_open ⇒ Object 



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# File 'lib/freetype/api_test.rb', line 6

def font_open
  ['data/Prida01.otf', 'data/Starjedi.ttf'].each do |font|
    Font.open(font) do |f|
      yield f, font
    end
  end
end

#test_Font(t) ⇒ Object 



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# File 'lib/freetype/api_test.rb', line 24

def test_Font(t)
  font = nil
  ret = Font.open('data/Prida01.otf') do |f|
    font = f

    :abc
  end
  if font.nil?
    t.error('cannot get FT_Library in `open` with block')
  end
  if ret != :abc
    t.error 'want to return last value in block'
  end

  font_open do |f, _font|
    if f.char_index('a') == 0
      t.error('ascii char not defined this font')
    end
    if f.char_index('㍿') != 0
      t.error("I don't know why set character was defined in font")
    end

    v = f.kerning('A', 'W')
    unless v
      t.error('#kerning return object was changed')
    end
    unless Fixnum === v.x && Fixnum === v.y
      t.error('Not vector object. Check spec for FT_Get_Kerning()')
    end

    f.set_char_size(0, 0, 300, 300)

    bbox = f.bbox
    unless BBox === bbox
      t.error('FreeType::API::Face#bbox return value was break')
    end

    unless 0 < f.line_height
      t.error('Not expected behavior')
    end

    unless Glyph === f.glyph('a')
      t.error 'return value was break'
    end

    unless 0 < f.line_height
      t.error('Not expected behavior')
    end

    unless Glyph === f.notdef
      t.error 'return value was break'
    end
  end
end

#test_glyph(t) ⇒ Object 



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# File 'lib/freetype/api_test.rb', line 79

def test_glyph(t)
  font_open do |f|
    f.set_char_size(0, 0, 300, 300)
    table = { 'a' => nil, 'b' => nil, 'c' => nil, 'd' => nil }
    table.each do |char, _|
      glyph = f.glyph(char)

      metrics = glyph.metrics
      unless FreeType::C::FT_Glyph_Metrics === metrics
        t.error 'return value was break'
      end

      char_width = glyph.char_width
      unless Fixnum === char_width
        t.error 'return value was break'
      end

      outline = glyph.outline
      unless Outline === outline
        t.error('FreeType::API::Face#outline return value was break')
      end

      ret = glyph.bold
      unless ret.nil?
        t.error SystemCallError.new(FFI.errno).message
      end

      ret = glyph.italic
      unless ret.nil?
        t.error SystemCallError.new(FFI.errno).message
      end
    end
  end
end

#test_library_version(t) ⇒ Object 



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# File 'lib/freetype/api_test.rb', line 14

def test_library_version(t)
  v = FreeType::API.library_version
  unless String === v
    t.error 'return value was break'
  end
  unless /\A\d+.\d+.\d+\z/ =~ v
    t.error "version format was break got #{v}"
  end
end

#test_outline(t) ⇒ Object 



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# File 'lib/freetype/api_test.rb', line 114

def test_outline(t)
  font_open do |f|
    f.set_char_size(0, 0, 300, 300)
    table = { 'a' => nil, 'b' => nil, 'c' => nil, 'd' => nil }
    table.each do |char, _|
      outline = f.glyph(char).outline

      unless 0 < outline.points.length
        t.error('FT_Outline.points get failed from ffi')
      end

      unless outline.points.all? { |i| Point === i }
        t.error('Miss array of FreeType::API::Outline#points objects assignment')
      end

      unless outline.tags.all? { |i| Fixnum === i }
        t.error('Got values miss assigned from ffi')
      end

      unless outline.contours.all? { |i| Fixnum === i }
        t.error('Got values miss assigned from ffi')
      end

      unless outline.svg_path_data.empty?.!
        t.error('Could not get svg path data form outline')
      end

      table[char] = outline.points.map(&:x)
    end
    if table.values.uniq.length != table.length
      t.error 'char reference miss'
    end
  end
end