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module RRTF
# This class represents a geometry object (shape or text box) within an RTF
# document.
# @author Wesley Hileman
# @since 1.0.0
class GeometryNode < CommandNode
attr_reader :properties
# Constructor for the GeometryNode class.
#
# @param [Hash, GeometryProperties] properties a hash or GeometryProperties
# object specifying the properties of the geometry object.
def initialize(parent, properties = nil)
case properties
when Hash
@properties = GeometryProperties.new(properties)
when GeometryProperties
@properties = properties
else
RTFError.fire("Invalid geometry properties '#{properties}'.")
end unless properties.nil?
prefix = '{\shp{\*\shpinst'
prefix << @properties.to_rtf unless properties.nil?
super(parent, prefix, '}}', false, false)
end
def to_rtf
text = StringIO.new
text << @prefix
unless self.size() == 0
text << '{\shptxt'
self.each do |entry|
text << "\n"
text << entry.to_rtf
end # each
text << '}'
end # unless
text << @suffix
text.string
end
# Overrides the {CommandNode#geometry} method to prevent geometry objects
# from being nested in other geometry objects.
#
# @raise [RTFError] whenever called.
def geometry(properties = nil)
RTFError.fire("Cannot place a geometry object inside of another.")
end
# Overrides the {CommandNode#<<} method to prevent text from being added
# to geometry objects directly. Calls {#paragraph} instead.
#
# @raise [RTFError] whenever called.
def <<(text)
self.paragraph << text
end
end # class GeometryNode
end # module RRTF
Version data entries
6 entries across 6 versions & 1 rubygems