module Magick::RVG::Stylable

Use splat to splat out Array arguments such as stroke_dasharray.
For each style that has a value, add a style primitive to the gc.

def add_style_primitives(gc)
  @styles.each_value do |style, value|
    if value.respond_to? :add_primitives
      value.add_primitives(gc, style)
    else
      gc.__send__(style, *value)
    end
  end
end

def initialize
  super
  @styles = Styles.new
end

[:writing_mode] 'lr-tb', 'lr', 'rt-tb', 'rl', 'tb-rl', 'tb'
[:word_spacing] modify the spacing between words
[:text_decoration] 'none','underline','overline','line_through'
[:text_anchor] 'start','middle','end'
[:stroke_width] stroke width
[:stroke_opacity] the stroke opacity, 0.0<=N<=1.0
[:stroke_miterlimit] miter length constraint
[:stroke_linejoin] 'miter', 'round', 'bevel'
[:stroke_linecap] 'butt', 'round', 'square'
[:stroke_dashoffset] initial distance into dash pattern
[:stroke_dasharray] dash pattern (Array)
[:stroke] color name
[:opacity] both fill and stroke opacity, 0.0<=N<=1.0
[:letter_spacing] modify the spacing between letters
[:glyph_orientation_vertical] 0, 90, 180, 270
[:glyph_orientation_horizontal] 0, 90, 180, 270
a multiple of 100 between 100 and 900.
[:font_weight] 'normal','bold','bolder','lighter', or
[:font_style] 'normal','italic','oblique'
'expanded','extra_expanded','ultra_expanded'
'condensed','semi_condensed','semi_expanded',
[:font_stretch] 'normal','ultra_condensed','extra_condensed',
[:font_size] font size in points
[:font_family] font family name, ex. 'serif'
[:font] font name or font file name
[:fill_rule] 'evenodd' or 'nozero'
[:fill_opacity] the fill opacity, 0.0<=N<=1.0
[:fill] color name
[:clip_rule] 'evenodd' or 'nozero'
[:clip_path] clipping path defined by clip_path
[:baseline_shift] modify the text baseline
the hash keys. The style names and values are:
shape object. The argument is a hash. The style names are
This method can be used with any RVG, Group, Use, Text, or

def styles(styles)
  @styles.set(styles)
  yield(self) if block_given?
  self
end