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module Rubyvis
module SvgScene
def self.label(scenes)
#e=scenes._g.elements[1]
e=scenes._g.get_element(1)
scenes.each_with_index do |s,i|
next unless s.visible
fill=s.text_style
next if(fill.opacity==0 or s.text.nil?)
x=0
y=0
dy=0
anchor='start'
case s.text_baseline
when 'middle'
dy=".35em"
when "top"
dy = ".71em"
y = s.text_margin
when "bottom"
y = "-" + s.text_margin.to_s
end
case s.text_align
when 'right'
anchor = "end"
x = "-" + s.text_margin.to_s
when "center"
anchor = "middle"
when "left"
x = s.text_margin
end
e=SvgScene.expect(e,'text', {
"pointer-events"=> s.events,
"cursor"=> s.cursor,
"x"=> x,
"y"=> y,
"dy"=> dy,
"transform"=> "translate(#{s.left},#{s.top})" + (s.text_angle!=0 ? " rotate(" + (180 * s.text_angle / Math::PI).to_s + ")" : "") + (self.scale != 1 ? " scale(" + 1 / self.scale + ")" : ""),
"fill"=> fill.color,
"fill-opacity"=> fill.opacity==0 ? nil : fill.opacity,
"text-anchor"=> anchor
}, {
"font"=> s.font,
"font-family"=> s.font_family.nil? ? nil : s.font_family,
"font-style"=> s.font_style.nil? ? nil: s.font_style,
"font-variant"=> s.font_variant.nil? ? nil : s.font_variant,
"font-weight"=> s.font_weight.nil? ? nil: s.font_weight,
"font-size"=> s.font_size.nil? ? nil: s.font_size,
"text-shadow"=> s.text_shadow,
"text-decoration"=> s.text_decoration})
e.text=s.text.frozen? ? s.text.to_s.dup : s.text
e=SvgScene.append(e,scenes,i)
end
e
end
end
end
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