end of day commit
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@@ -0,0 +1,31 @@
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require 'action_controller'
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require 'rqrcode'
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require 'rqrcode-rails3/size_calculator.rb'
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require 'rqrcode-rails3/renderers/svg.rb'
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module RQRCode
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Mime::Type.register "image/svg+xml", :svg unless Mime::Type.lookup_by_extension(:svg)
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Mime::Type.register "image/png", :png unless Mime::Type.lookup_by_extension(:png)
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extend SizeCalculator
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ActionController::Renderers.add :qrcode do |string, options|
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format = self.request.format.symbol
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size = options[:size] || RQRCode.minimum_qr_size_from_string(string)
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level = options[:level] || :h
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qrcode = RQRCode::QRCode.new(string, :size => size, :level => level)
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svg = RQRCode::Renderers::SVG::render(qrcode, options)
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data = \
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if format == :png
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image = MiniMagick::Image.read(svg) { |i| i.format "svg" }
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image.format "png"
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png = image.to_blob
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else
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svg
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end
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self.response_body = render_to_string(:text => data, :template => nil)
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end
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end
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@@ -0,0 +1,109 @@
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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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<!-- Created with Inkscape (http://www.inkscape.org/) -->
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<svg
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xmlns:dc="http://purl.org/dc/elements/1.1/"
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xmlns:cc="http://creativecommons.org/ns#"
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xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
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xmlns:svg="http://www.w3.org/2000/svg"
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xmlns="http://www.w3.org/2000/svg"
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xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
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xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
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width="318.89764"
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height="318.89764"
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id="svg2991"
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version="1.1"
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inkscape:version="0.48.2 r9819"
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sodipodi:docname="table_qr_image.svg">
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<defs
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id="defs3">
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<filter
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id="filter3789"
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inkscape:label="Cutout"
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x="0"
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y="0"
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width="1"
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height="1"
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inkscape:menu="Shadows and Glows"
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inkscape:menu-tooltip="Drop shadow under the cut-out of the shape"
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color-interpolation-filters="sRGB">
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<feGaussianBlur
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id="feGaussianBlur3791"
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in="SourceAlpha"
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stdDeviation="4.2" />
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<feOffset
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id="feOffset3793"
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dy="5"
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dx="5"
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result="result91" />
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<feComposite
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id="feComposite3795"
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in2="result91"
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operator="out"
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in="SourceGraphic" />
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</filter>
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</defs>
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<sodipodi:namedview
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id="base"
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pagecolor="#ffffff"
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bordercolor="#666666"
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borderopacity="1.0"
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inkscape:pageopacity="0.0"
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inkscape:pageshadow="2"
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inkscape:zoom="1.3773478"
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inkscape:cx="107.03459"
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inkscape:cy="78.51279"
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inkscape:document-units="mm"
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inkscape:current-layer="layer1"
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showgrid="false"
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units="mm"
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inkscape:window-width="1440"
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inkscape:window-height="856"
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inkscape:window-x="0"
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inkscape:window-y="0"
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inkscape:window-maximized="0" />
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<metadata
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id="metadata2995">
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<rdf:RDF>
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<cc:Work
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rdf:about="">
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<dc:format>image/svg+xml</dc:format>
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<dc:type
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rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
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<dc:title />
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</cc:Work>
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</rdf:RDF>
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</metadata>
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<g
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inkscape:label="Layer 1"
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inkscape:groupmode="layer"
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id="layer1"
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transform="translate(0,141.73227)">
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<text
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xml:space="preserve"
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style="font-size:40px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:semi-expanded;text-align:start;line-height:125%;letter-spacing:0px;word-spacing:0px;writing-mode:lr-tb;text-anchor:start;fill:#ffb213;fill-opacity:1;stroke:none;font-family:BankGothic Md BT;-inkscape-font-specification:BankGothic Md BT Semi-Expanded"
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x="80.589668"
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y="-90.740822"
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id="text4695"
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sodipodi:linespacing="125%"><tspan
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sodipodi:role="line"
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id="tspan4697"
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x="80.589668"
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y="-90.740822">Qwaiter</tspan></text>
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<g
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id="g3838"
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transform="matrix(0.49177687,0,0,0.49177687,49.419301,-77.511451)">#qrcode
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</g>
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<text
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xml:space="preserve"
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style="font-size:18px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;text-align:end;line-height:125%;letter-spacing:0px;word-spacing:0px;writing-mode:lr-tb;text-anchor:end;fill:#000000;fill-opacity:1;stroke:none;font-family:Sans;-inkscape-font-specification:Sans"
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x="277.10553"
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y="160.40939"
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id="text3799"
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sodipodi:linespacing="125%"><tspan
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sodipodi:role="line"
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id="tspan3801"
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x="277.10553"
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y="160.40939">#table_number</tspan></text>
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</g>
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</svg>
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After Width: | Height: | Size: 3.5 KiB |
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module RQRCode
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module Renderers
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class SVG
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class << self
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# Render the SVG from the qrcode string provided from the RQRCode gem
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# Options:
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# offset - Padding around the QR Code (e.g. 10)
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# unit - How many pixels per module (Default: 11)
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# fill - Background color (e.g "ffffff" or :white)
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# color - Foreground color for the code (e.g. "000000" or :black)
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def render(qrcode, options={})
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offset = options[:offset].to_i || 0
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color = options[:color] || "000"
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unit = options[:unit] || 11
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# height and width dependent on offset and QR complexity
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dimension = (qrcode.module_count*unit) + (2*offset)
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xml_tag = %{<?xml version="1.0" standalone="yes"?>}
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open_tag = %{<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ev="http://www.w3.org/2001/xml-events" width="#{dimension}" height="#{dimension}">}
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close_tag = "</svg>"
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result = []
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qrcode.modules.each_index do |c|
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tmp = []
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qrcode.modules.each_index do |r|
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y = c*unit + offset
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x = r*unit + offset
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next unless qrcode.is_dark(c, r)
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tmp << %{<rect width="#{unit}" height="#{unit}" x="#{x}" y="#{y}" style="fill:##{color}"/>}
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end
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result << tmp.join("\n")
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end
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if options[:fill]
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result.unshift %{<rect width="#{dimension}" height="#{dimension}" x="0" y="0" style="fill:##{options[:fill]}"/>}
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end
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svg = [xml_tag, open_tag, result, close_tag].flatten.join("\n")
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svg = File.read(File.expand_path('../../qr_container.svg', __FILE__))
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svg.gsub!(/#table_number/, options[:table_number].to_s)
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svg.gsub!(/#qrcode/, result.join("\n"))
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svg
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end
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end
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end
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end
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end
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@@ -0,0 +1,40 @@
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module RQRCode
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module SizeCalculator
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# size - seems to follow this logic
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# # | input | modules
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# | size | created
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#-------|-------|--------
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# 1 | 7 | 21
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# 2 | 14 | 25 (+4)
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# 3 | 24 | 29 -
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# 4 | 34 | 33 -
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# 5 | 44 | 37 -
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# 6 | 58 | 41 -
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# 7 | 64 | 45 -
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# 8 | 84 | 49 -
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# 9 | 98 | 53 -
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# 10 | 119 | 57 -
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# 11 | 137 | 61 -
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# 12 | 155 | 65 -
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# 13 | 177 | 69 -
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# 14 | 194 | 73 -
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QR_CHAR_SIZE_VS_SIZE = [7, 14, 24, 34, 44, 58, 64, 84, 98, 119, 137, 155, 177, 194]
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def minimum_qr_size_from_string(string)
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QR_CHAR_SIZE_VS_SIZE.each_with_index do |size, index|
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return (index + 1) if string.size < size
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end
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# If it's particularly big, we'll try and create codes until it accepts
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i = QR_CHAR_SIZE_VS_SIZE.size
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begin
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i += 1
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RQRCode::QRCode.new(string, :size => i)
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return i
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rescue RQRCode::QRCodeRunTimeError
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retry
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end
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end
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end
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end
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