class PixScale::Pic
Attributes
path[R]
type[R]
Public Class Methods
new(path)
click to toggle source
# File lib/pix_scale/pic.rb, line 14 def initialize(path) @path = path @pic = Gdk::Pixbuf.new(path) @type = (/\A\.jpg\z/i =~ extname) ? "jpeg" : extname.sub(/^\./, "").downcase end
scale_and_save(path, scale, type=nil)
click to toggle source
# File lib/pix_scale/pic.rb, line 9 def self.scale_and_save(path, scale, type=nil) new(path).scale_and_save(scale, type) end
Public Instance Methods
save(output_path, type=nil)
click to toggle source
# File lib/pix_scale/pic.rb, line 57 def save(output_path, type=nil) output_type = type || @type @pic.save(output_path, output_type) end
scale(scale)
click to toggle source
# File lib/pix_scale/pic.rb, line 28 def scale(scale) new_pic = self.dup new_pic.scale!(scale) new_pic end
scale!(scale)
click to toggle source
# File lib/pix_scale/pic.rb, line 34 def scale!(scale) if scale.is_a?(Float) width = @pic.width * scale height = @pic.height * scale elsif scale.is_a?(Integer) width = scale height = @pic.height * (scale.to_f / @pic.width) elsif /\A[0-9]+\.[0-9]+\z/ =~ scale width = @pic.width * scale.to_f height = @pic.height * scale.to_f elsif /\A[0-9]+[^\.0-9][0-9]+\z/ =~ scale width, height = scale.split(/[^\.0-9]/).map(&:to_i) elsif /\A[0-9]+\z/ =~ scale width = scale.to_i height = @pic.height * (scale.to_f / @pic.width) elsif /\A[^\.0-9]([0-9]+)\z/ =~ scale width = @pic.width * ($1.to_f / @pic.height) height = $1.to_i end @pic = @pic.scale(width, height) end
scale_and_save(scale, type=nil)
click to toggle source
# File lib/pix_scale/pic.rb, line 20 def scale_and_save(scale, type=nil) scale_string = scale.to_s.sub(/[^\.0-9]/, "_") extention = type || extname extention = ".#{extention}" unless /\A\./ =~ extention output_path = "#{dirname}/#{basename}-#{scale_string}#{extention}" scale(scale).save(output_path, type) end
Private Instance Methods
basename()
click to toggle source
# File lib/pix_scale/pic.rb, line 67 def basename File.basename(@path, ".*") end
dirname()
click to toggle source
# File lib/pix_scale/pic.rb, line 63 def dirname File.dirname(@path) end
extname()
click to toggle source
# File lib/pix_scale/pic.rb, line 71 def extname File.extname(@path) end