Class: RqrcodePngBin::App
- Inherits:
-
Object
- Object
- RqrcodePngBin::App
- Defined in:
- lib/rqrcode_png_bin/app.rb
Instance Attribute Summary collapse
-
#canvas ⇒ Object
readonly
Returns the value of attribute canvas.
-
#file ⇒ Object
readonly
Returns the value of attribute file.
-
#level ⇒ Object
readonly
Returns the value of attribute level.
-
#size ⇒ Object
readonly
Returns the value of attribute size.
Instance Method Summary collapse
- #generate_png(str) ⇒ Object
-
#initialize(argv = []) ⇒ App
constructor
A new instance of App.
-
#opts ⇒ Object
- return
-
Hash.
-
#parser ⇒ Object
- return
-
OptionParser.
- #run ⇒ Object
-
#str ⇒ Object
- return
-
String.
Constructor Details
#initialize(argv = []) ⇒ App
Returns a new instance of App.
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# File 'lib/rqrcode_png_bin/app.rb', line 6 def initialize(argv = []) @argv = argv @canvas = nil @file = nil @level = :m @size = 4 parser.parse!(@argv) end |
Instance Attribute Details
#canvas ⇒ Object (readonly)
Returns the value of attribute canvas.
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# File 'lib/rqrcode_png_bin/app.rb', line 16 def canvas @canvas end |
#file ⇒ Object (readonly)
Returns the value of attribute file.
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# File 'lib/rqrcode_png_bin/app.rb', line 16 def file @file end |
#level ⇒ Object (readonly)
Returns the value of attribute level.
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# File 'lib/rqrcode_png_bin/app.rb', line 16 def level @level end |
#size ⇒ Object (readonly)
Returns the value of attribute size.
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# File 'lib/rqrcode_png_bin/app.rb', line 16 def size @size end |
Instance Method Details
#generate_png(str) ⇒ Object
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# File 'lib/rqrcode_png_bin/app.rb', line 32 def generate_png(str) png = RQRCode::QRCode.new(str, opts).to_img png = png.resize(*canvas) if canvas png end |
#opts ⇒ Object
- return
-
Hash
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# File 'lib/rqrcode_png_bin/app.rb', line 49 def opts h = { :size => @size, :level => @level } end |
#parser ⇒ Object
- return
-
OptionParser
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# File 'lib/rqrcode_png_bin/app.rb', line 59 def parser OptionParser.new do |opt| opt.version = VERSION opt. = "Usage: rqrcode_png [option] string" opt.on('-c', '--canvas CANVAS (ex 200x200)') {|v| re = %r{\A([0-9]+)x([0-9]+)\z} if v =~ re @canvas = [$1.to_i, $2.to_i] else raise ArgumentError, "option canvas should match #{re}" end } opt.on('-f', '--from-file FILE') {|v| if File.exist?(v) @file = v else raise ArgumentError, "file you specified '#{v}' does not exist" end } opt.on('-l', '--level LEVEL (default m)') {|v| = %w(l m q h) if .include?(v) @level = v.to_sym else raise ArgumentError, "option level should be included #{}" end } opt.on('-s', '--size SIZE (default 4)') {|v| re = %r{\A[0-9]+\z} if v =~ re @size = v.to_i else raise ArgumentError, "option size should match #{re}" end } end end |
#run ⇒ Object
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# File 'lib/rqrcode_png_bin/app.rb', line 18 def run if file FileReader.new(file).each {|str, dest| open(dest, 'wb') {|f| f.puts generate_png(str) } } elsif str STDOUT.puts generate_png(str) else STDERR.puts "rqrcode_png #{VERSION}", '', parser.help end end |
#str ⇒ Object
- return
-
String
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# File 'lib/rqrcode_png_bin/app.rb', line 42 def str str = @argv.first end |