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Contents
# frozen_string_literal: true
module Alchemy
class Picture < BaseRecord
module Calculations
# An Image smaller than dimensions
# can not be cropped to given size - unless upsample is true.
#
def can_be_cropped_to?(string, upsample = false)
return true if upsample
is_bigger_than? sizes_from_string(string)
end
# Returns true if both dimensions of the base image are bigger than the dimensions hash.
#
def is_bigger_than?(dimensions)
image_file_width > dimensions[:width] && image_file_height > dimensions[:height]
end
# Returns true is one dimension of the base image is smaller than the dimensions hash.
#
def is_smaller_than?(dimensions)
!is_bigger_than?(dimensions)
end
# Given a string with an x, this function returns a Hash with point
# :width and :height.
#
def sizes_from_string(string = "0x0")
string = "0x0" if string.nil? || string.empty?
raise ArgumentError unless string =~ /(\d*x\d*)/
width, height = string.scan(/(\d*)x(\d*)/)[0].map(&:to_i)
width = 0 if width.nil?
height = 0 if height.nil?
{
width: width,
height: height,
}
end
# This function returns the :width and :height of the image file
# as a Hash
def image_size
{
width: image_file_width,
height: image_file_height,
}
end
end
end
end
Version data entries
33 entries across 33 versions & 1 rubygems