From e6c4ebee5d250eb3f4267127be18d9f348a8edf3 Mon Sep 17 00:00:00 2001 From: Piotr Dobrowolski Date: Sun, 28 May 2017 02:53:46 +0200 Subject: [PATCH] Initial commit --- .editorconfig | 12 ++++++ .gitignore | 2 + Gemfile | 10 +++++ Gemfile.lock | 50 +++++++++++++++++++++++ main.rb | 109 ++++++++++++++++++++++++++++++++++++++++++++++++++ 5 files changed, 183 insertions(+) create mode 100644 .editorconfig create mode 100644 .gitignore create mode 100644 Gemfile create mode 100644 Gemfile.lock create mode 100644 main.rb diff --git a/.editorconfig b/.editorconfig new file mode 100644 index 0000000..235f3d9 --- /dev/null +++ b/.editorconfig @@ -0,0 +1,12 @@ +# top-most EditorConfig file +root = true + +# Unix-style newlines with a newline ending every file +[*] +end_of_line = lf +insert_final_newline = true +charset = utf-8 + +[*.rb] +indent_style = spaces +indent_size = 2 diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..180bf07 --- /dev/null +++ b/.gitignore @@ -0,0 +1,2 @@ +.bundle +vendor diff --git a/Gemfile b/Gemfile new file mode 100644 index 0000000..07bd885 --- /dev/null +++ b/Gemfile @@ -0,0 +1,10 @@ +source 'https://rubygems.org' + +gem 'prawn' +gem 'prawn-qrcode' +gem 'prawn-svg' +gem 'sinatra' +gem 'color' +gem 'excon' +gem 'rmagick' +gem 'json' diff --git a/Gemfile.lock b/Gemfile.lock new file mode 100644 index 0000000..628de18 --- /dev/null +++ b/Gemfile.lock @@ -0,0 +1,50 @@ +GEM + remote: https://rubygems.org/ + specs: + addressable (2.5.0) + public_suffix (~> 2.0, >= 2.0.2) + chunky_png (1.3.8) + color (1.8) + css_parser (1.4.9) + addressable + excon (0.55.0) + json (1.8.3) + pdf-core (0.6.1) + prawn (2.1.0) + pdf-core (~> 0.6.1) + ttfunk (~> 1.4.0) + prawn-qrcode (0.3.0) + prawn (>= 1) + rqrcode (>= 0.4.1) + prawn-svg (0.26.0) + css_parser (~> 1.3) + prawn (>= 0.11.1, < 3) + public_suffix (2.0.5) + rack (1.6.5) + rack-protection (1.5.3) + rack + rmagick (2.16.0) + rqrcode (0.10.1) + chunky_png (~> 1.0) + sinatra (1.4.8) + rack (~> 1.5) + rack-protection (~> 1.4) + tilt (>= 1.3, < 3) + tilt (2.0.6) + ttfunk (1.4.0) + +PLATFORMS + ruby + +DEPENDENCIES + color + excon + json + prawn + prawn-qrcode + prawn-svg + rmagick + sinatra + +BUNDLED WITH + 1.11.2 diff --git a/main.rb b/main.rb new file mode 100644 index 0000000..c69a89f --- /dev/null +++ b/main.rb @@ -0,0 +1,109 @@ +require 'rubygems' +require 'sinatra' +require 'prawn' +require 'prawn/measurements' +require 'prawn/qrcode' +require 'prawn-svg' +require 'color' +require 'excon' +require 'rmagick' +require 'json' +require 'zlib' + +include Prawn::Measurements + +module Excon + class Response + def json!() + puts body + JSON.parse(body) + end + end +end + +BACKEND_URL = 'http://127.0.0.1:8000/api/1/' +CODE_PREFIX = "HTTP://I/" + +def api(uri) + Excon.get(BACKEND_URL + uri + "/").json! +end + +def render_identicode(data, id, extent) + pts = [[0, 0], [0, 1], [1, 1], [1, 0], [0, 0]] + + 4.times do |n| + color = Color::HSL.from_fraction((id % 6) / 6.0, 1.0, 0.3).html[1..6] + id /= 6 + + save_graphics_state do + soft_mask do + fill_color 'ffffff' + polygon = [pts[n], [0.5, 0.5], pts[n+1]].map{ |v| [v[0]*bounds.height, v[1]*bounds.height] } + fill_polygon(*(polygon)) + end + + print_qr_code data, stroke: false, + extent: extent, foreground_color: color, + pos: [bounds.left, bounds.top] + end + end + + fill_color '000000' +end + +def render_label(label) + margin = 2 + + label = api("labels/#{label}") + + pdf = Prawn::Document.new(page_size: [89, 36].map { |x| mm2pt(x) }, + margin: mm2pt(margin)) do + font_families.update("DejaVuSans" => { + normal: "fonts/DejaVuSans.ttf", + italic: "fonts/DejaVuSans-Oblique.ttf", + bold: "fonts/DejaVuSans-Bold.ttf", + bold_italic: "fonts/DejaVuSans-BoldOblique.ttf" + }) + + font 'DejaVuSans' + + svg IO.read("hsyrenka.svg"), + position: :right, vposition: :bottom, + height: 0.5*bounds.height + + print_qr_code CODE_PREFIX + label['id'], stroke: false, + extent: mm2pt(36-2*margin), foreground_color: color, + pos: [bounds.left, bounds.top] + + text_box label['item']['name'], + size: 30, align: :center, valign: :center, + inline_format: true, + width: bounds.width - bounds.height - 8, + height: bounds.height - 10, + at: [bounds.left+bounds.height, bounds.top - 5], + overflow: :shrink_to_fit + end + + pdf.render +end + +get '/api/1/preview/:label.pdf' do + headers["Content-Type"] = "application/pdf; charset=utf8" + render_label params["label"] +end + +get '/api/1/preview/:label.png' do + headers["Content-Type"] = "image/png" + img = Magick::ImageList.new() + img = img.from_blob(render_label(params["label"])){ self.density = 200 }.first + img.format = 'png' + img.background_color = 'white' + img.to_blob +end + +post '/api/1/print/:label' do + temp = Tempfile.new('labelmaker') + temp.write(render_label(params["label"])) + temp.close + system("lpr -P DYMO_LabelWriter_450 #{temp.path}") +end