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Contents
module WhirledPeas
module Graphics
# Abstract base Painter class. Given a canvas and start coordinates (left, top), a painter
# is responsible for generating the "strokes" that display the element.
class Painter
attr_reader :name, :settings
def initialize(name, settings)
@settings = settings
@name = name
end
# Paint the element onto the canvas by yielding strokes to the block. A stroke is composed
# of a left, top, and chars. E.g.
#
# yield 10, 3, 'Hello World!'
#
# paints the string "Hello World!" in the 10th column from the left, 3rd row down.
def paint(canvas, left, top, &block)
end
# Return a dimension object that provider the `outer_width` and `outer_height` of the
# element being painted.
def dimensions
end
def inspect
"#{self.class.name.split('::').last}(name=#{name.inspect})"
end
end
private_constant :Painter
end
end
Version data entries
8 entries across 8 versions & 1 rubygems