class Prawn::Images::Image
Public Instance Methods
calc_image_dimensions(options)
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@group Extension API
# File lib/prawn/images/image.rb, line 16 def calc_image_dimensions(options) w = options[:width] || width h = options[:height] || height if options[:width] && !options[:height] wp = w / width.to_f w = width * wp h = height * wp elsif options[:height] && !options[:width] hp = h / height.to_f w = width * hp h = height * hp elsif options[:scale] w = width * options[:scale] h = height * options[:scale] elsif options[:fit] bw, bh = options[:fit] bp = bw / bh.to_f ip = width / height.to_f if ip > bp w = bw h = bw / ip else h = bh w = bh * ip end end self.scaled_width = w self.scaled_height = h [w, h] end