# font_styles.rb

    #!/usr/local/bin/ruby18 -w
    require 'rvg/rvg'

    rvg = Magick::RVG.new(200, 250) do |canvas|
        canvas.background_fill = 'white'

        canvas.g do |grp|
            grp.g.styles(:font_weight=>'normal', :font_style=>'normal') do |grp2|
              grp2.text(10, 30, "default size")
              grp2.text(10, 50, ":font_size=>14").styles(:font_size=>14)
              grp2.text(10, 70, ":font_size=>16").styles(:font_size=>16)
              grp2.text(10,100, ":font_size=>24").styles(:font_size=>24)
            end
        end

        canvas.g.styles(:font_size=>14, :font_weight=>'normal', :font_style=>'normal') do |grp|
          if RUBY_PLATFORM =~ /mswin32/
             grp.text( 8, 120, ":font_family=>'Courier-New'").styles(:font_family=>'Courier-New')
          else
             grp.text( 8, 120, ":font_family=>'Courier'").styles(:font_family=>'Courier')
          end
            grp.text(10, 140, ":font_weight=>'bold'").styles(:font_weight=>'bold')
            grp.text(10, 160, ":font_stretch=>'normal'").styles(:font_stretch=>'normal')
            grp.text(10, 180, ":font_stretch=>'condensed'").styles(:font_stretch=>'condensed')
            grp.text(10, 200, ":font_style=>'italic'").styles(:font_style=>'italic')
            grp.text(10, 220, ":font_weight=>900").styles(:font_weight=>900)
        end

        canvas.rect(199, 249).styles(:fill=>'none', :stroke=>'blue')
    end

    rvg.draw.write('font_styles.gif')

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