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Contents
module Rabbit
class Size
attr_reader :real_width
attr_reader :real_height
attr_reader :logical_width
attr_reader :logical_height
attr_reader :logical_margin_left
attr_reader :logical_margin_right
attr_reader :logical_margin_top
attr_reader :logical_margin_bottom
attr_reader :ratio
def initialize(width, height, ratio)
@real_width = width
@real_height = height
@ratio = ratio
compute_logical_size
end
def have_logical_margin_x?
@logical_margin_left > 0 or
@logical_margin_right > 0
end
def have_logical_margin_y?
@logical_margin_top > 0 or
@logical_margin_bottom > 0
end
def have_logical_margin?
have_logical_margin_x? or have_logical_margin_y?
end
private
def compute_logical_size
real_ratio = @real_width.to_f / @real_height.to_f
if real_ratio == @ratio
@logical_width = @real_width
@logical_height = @real_height
@logical_margin_left = 0
@logical_margin_right = 0
@logical_margin_top = 0
@logical_margin_bottom = 0
return
end
if real_ratio > @ratio
@logical_width = @real_width * (@ratio / real_ratio)
@logical_height = @real_height
width_margin = @real_width - @logical_width
@logical_margin_left = width_margin / 2
@logical_margin_right = width_margin / 2
@logical_margin_top = 0
@logical_margin_bottom = 0
else
@logical_width = @real_width
@logical_height = @real_height * (real_ratio / @ratio)
height_margin = @real_height - @logical_height
@logical_margin_left = 0
@logical_margin_right = 0
@logical_margin_top = height_margin / 2
@logical_margin_bottom = height_margin / 2
end
end
end
end
Version data entries
8 entries across 8 versions & 1 rubygems