SUMMARY

This extension provides a "Print Invoice" button on the Admin Orders view screen which opens a printable html page with the order details.

It also adds the ability to create receipt, with the purpose of using it directly from a POS.

NOTE: If you need server-side pdf generation, use the spree-print-invoice extension.

INSTALLATION

To install you need to add the following lines to your Gemfile (no external dependencies)

gem 'spree_html_invoice' , :git => 'git://github.com/dancinglightning/spree-html-invoice.git'
run bundler

bundle install
Enjoy!

Have to re-write this part

Now we have more option for configuration.

Set the logo path preference to include your store / company logo.

Spree::HtmlInvoice::Config.set(:html_invoice_logo_path => "company-logo.png")

Somewhere in your asset path
Override any of the partial templates. they are address, footer, totals, header, thanks , and the line_items. The whole tanks is wrapped in a thanks hook, so replace or add at will.
Set Spree::HtmlInvoice::Config.set(:suppress_anonymous_address) option to get blank addresses for anonymous email addresses (as created by my spree_last_address extension for empty/unknown user info)
Enable packaging slips, by setting

Spree::HtmlInvoice::Config.set(:print_buttons => "invoice,packaging_slip") #comma separated list

Use above feature for your own template if you want. For each button_name, define a subsection with header, print, and thanks, in your locale.

There is now a receipt template, for a normal receipt printer (ie 70mm).