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Versions: 6
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Contents
module Vedeu
# Validates that the provided coordinates are within the terminal and
# interface's geometry (with or without a border).
#
class PositionValidator
extend Forwardable
def_delegators :border,
:bx,
:bxn,
:by,
:byn
# @!attribute [rw] x
# @return [Fixnum]
attr_accessor :x
# @!attribute [rw] x
# @return [Fixnum]
attr_accessor :y
# @param (see #initialize)
def self.validate(name, x, y)
new(name, x, y).validate
end
# Returns a new instance of Vedeu::PositionValidator.
#
# @param name [String]
# @param x [Fixnum]
# @param y [Fixnum]
# @return [Vedeu::PositionValidator]
def initialize(name, x, y)
@name = name
@x = x
@y = y
end
# Ensures the coordinates provided are within the terminal, interface and
# if applicable, bordered interface area.
#
# @return [PositionValidator]
def validate
@x = bx if x < bx
@x = bxn if x > bxn
@y = by if y < by
@y = byn if y > byn
self
end
protected
# @!attribute [r] name
# @return [String]
attr_reader :name
private
# @see Vedeu::Borders#by_name
def border
@border ||= Vedeu.borders.by_name(name)
end
end # PositionValidator
end # Vedeu
Version data entries
6 entries across 6 versions & 1 rubygems