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#--
# $Id: clippath.rb,v 1.5 2009/02/28 23:52:13 rmagick Exp $
# Copyright (C) 2009 Timothy P. Hunter
#++
module Magick
class RVG
class ClipPath
include ShapeConstructors
include UseConstructors
include TextConstructors
include Describable
include Stylable
include Duplicatable
# Create a clipping path. Within the block create an outline
# from one or more paths, basic shapes, text objects, or +use+.
# Everything drawn within the outline will be displayed.
# Anything drawn outside the outline will not.
#
# If the clipping path contains a +use+, it
# must directly reference path, basic shape, or text objects.
#
# Attach the clipping path to an object with the :clip_path style.
def initialize(clip_path_units = 'userSpaceOnUse')
super()
raise ArgumentError, "undefined value for clip path units: #{clip_path_units}" unless %w[userSpaceOnUse objectBoundingBox].include?(clip_path_units)
@clip_path_units = clip_path_units
@content = Content.new
yield(self) if block_given?
end
# @private
def add_primitives(gc, _style)
name = __id__.to_s
gc.define_clip_path(name) do
gc.clip_units(@clip_path_units)
@content.each { |element| element.add_primitives(gc) }
end
gc.clip_path(name)
end
end # class ClipPath
end # class RVG
end # module Magick
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