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Contents
# @provides module:MotionKit::SizeCalculator
module MotionKit
module SizeCalculator
def calculate_size(view, amount, full_view)
if amount.is_a?(Array) || amount.is_a?(Hash)
calculate_size_from_multiple(view, amount, full_view)
elsif amount == :full
w = calculate(view, :width, '100%', full_view)
h = calculate(view, :height, '100%', full_view)
return CGSize.new(w, h)
elsif amount == :auto
return intrinsic_size(view)
elsif amount.is_a?(Symbol)
raise "Unrecognized amount symbol #{amount.inspect} in MotionKit#calculate_size"
else
return amount
end
end
def calculate_size_from_multiple(view, amount, full_view)
w, h = resolve_width_and_height(view, amount)
if w == :scale || h == :scale
w, h = calculate_scaled_width_height(w, h, view, full_view)
else
w = calculate(view, :width, w, full_view)
h = calculate(view, :height, h, full_view)
end
return CGSize.new(w, h)
end
def calculate_scaled_width_height(w, h, view, full_view)
# scaling is handled a little differently, because it is dependent on
# the other amount and the intrinsic size.
if w == :scale && h == :scale
raise "Either width or height can be :scale, but not both"
elsif w == :scale
h = calculate(view, :height, h, full_view)
size = intrinsic_size(view)
w = h * size.width / size.height
elsif h == :scale
w = calculate(view, :width, w, full_view)
size = intrinsic_size(view)
h = w * size.height / size.width
end
return w, h
end
def resolve_width_and_height(view, amount)
if amount.is_a?(Hash)
w = amount[:w] || amount[:width] || view.frame.size.width
h = amount[:h] || amount[:height] || view.frame.size.height
else
w = amount[0]
h = amount[1]
end
return w, h
end
end
end
Version data entries
24 entries across 24 versions & 1 rubygems