136 lines
3.4 KiB
Ruby
136 lines
3.4 KiB
Ruby
require 'rubygems'
|
|
require 'sinatra'
|
|
require 'rqrcode'
|
|
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 Prawn
|
|
# module Text
|
|
# module Formatted #:nodoc:
|
|
# # @private
|
|
# class LineWrap #:nodoc:
|
|
# def whitespace()
|
|
# # Wrap by these special characters as well
|
|
# "&:/\\" +
|
|
# "\s\t#{zero_width_space()}"
|
|
# end
|
|
# end
|
|
# end
|
|
# end
|
|
# end
|
|
|
|
module Excon
|
|
class Response
|
|
def json!()
|
|
# Convenience function
|
|
JSON.parse(body)
|
|
end
|
|
end
|
|
end
|
|
|
|
BACKEND_URL = 'https://inventory.hackerspace.pl/api/1/'
|
|
CODE_PREFIX = "https://inventory.hackerspace.pl/"
|
|
|
|
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
|
|
|
|
DYMO_LABEL_SIZE = [89, 36]
|
|
ZEBRA_LABEL_SIZE = [100, 60]
|
|
|
|
def render_label(item_or_label_id, size: DYMO_LABEL_SIZE)
|
|
item = api("items/#{item_or_label_id}")
|
|
|
|
pdf = Prawn::Document.new(page_size: size.map { |x| mm2pt(x) },
|
|
margin: [2, 2, 2, 6].map { |x| mm2pt(x) }) 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'
|
|
|
|
# Width of right side
|
|
qr_size = [bounds.height / 2, 27].max
|
|
|
|
# Right side
|
|
bounding_box([bounds.right - qr_size, bounds.top], width: qr_size) do
|
|
print_qr_code CODE_PREFIX + item['short_id'], stroke: false,
|
|
foreground_color: '000000',
|
|
extent: bounds.width, margin: 0, pos: bounds.top_left
|
|
|
|
owner_text = item["owner"] ? "owner: #{item['owner']}\n\n" : ""
|
|
metadata_text = owner_text # todo: creation date?
|
|
|
|
text_box metadata_text,
|
|
at: [bounds.right - qr_size, -7], size: 8, align: :right, overflow: :shrink_to_fit
|
|
end
|
|
|
|
# Left side
|
|
bounding_box(bounds.top_left, width: bounds.width - qr_size) do
|
|
text_box item['name'],
|
|
size: 40, align: :center, valign: :center, width: bounds.width-10,
|
|
inline_format: true, overflow: :shrink_to_fit, disable_wrap_by_char: true
|
|
end
|
|
end
|
|
|
|
pdf.render
|
|
end
|
|
|
|
set :bind, '0.0.0.0'
|
|
|
|
get '/api/1/preview/:id.pdf' do
|
|
headers["Content-Type"] = "application/pdf; charset=utf8"
|
|
render_label params["id"]
|
|
end
|
|
|
|
get '/api/1/preview/:id.png' do
|
|
headers["Content-Type"] = "image/png"
|
|
img = Magick::ImageList.new()
|
|
img = img.from_blob(render_label(params["id"])){ self.density = 200 }.first
|
|
img.format = 'png'
|
|
img.background_color = 'white'
|
|
img.to_blob
|
|
end
|
|
|
|
post '/api/1/print/:id' do
|
|
temp = Tempfile.new('labelmaker')
|
|
temp.write(render_label(params["id"]))
|
|
temp.close
|
|
system("lpr -P DYMO_LabelWriter_450 #{temp.path}")
|
|
end
|