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# encoding: UTF-8
#
# To create a custom class that extends Prawn's functionality,
# use the <code>Prawn::View</code> mixin. This approach is safer than creating
# subclasses of <code>Prawn::Document</code> while being just as convenient.
#
# By using this mixin, your state will be kept completely separate
# from <code>Prawn::Document</code>'s state, and you will avoid accidental method
# collisions within <code>Prawn::Document</code>.
#
# To build custom classes that make use of other custom classes,
# you can define a method named <code>document()</code> that returns
# any object that acts similar to a <code>Prawn::Document</code>
# object. <code>Prawn::View</code> will then direct all delegated
# calls to that object instead.
require_relative "../example_helper"
class Greeter
include Prawn::View
def initialize(name)
@name = name
end
def say_hello
text "Hello, #{@name}!"
end
def say_goodbye
font("Courier") do
text "Goodbye, #{@name}!"
end
end
end
greeter = Greeter.new("Gregory")
greeter.say_hello
greeter.say_goodbye
greeter.save_as("greetings.pdf")
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