class Prawn::Images::Image
Base class for image info objects @abstract
Public Instance Methods
Source
# File lib/prawn/images/image.rb, line 14 def calc_image_dimensions(options) w = options[:width] || width h = options[:height] || height if options[:width] && !options[:height] wp = w / Float(width) w = width * wp h = height * wp elsif options[:height] && !options[:width] hp = h / Float(height) 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 / Float(bh) ip = width / Float(height) 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
Calculate the final image dimensions from provided options. @private