Chris Hill-Scott 43296469d6 Add endpoint for generating an image of a letter ...

The PDF preview is all good, but it’s hard, finickeity and feels dirty
to embed a PDF in a web page. It’s a more natural thing to embed an
image in a web page.

So this commit adds another endpoint to return an image of a letter
template. It generates this image from the PDF preview, so the stack
looks like:

1. `template.png` (generated in admin)
2. `template.pdf` (generated in admin)
3. HTML preview (generated by a `Renderer` in utils)
4. `Template` instance
5. serialised template from API
6. Template stored in database

The library used to convert the PDF to an image is Wand[1], which binds
to ImageMagick underneath. So in order to get this working locally on a
Mac you will probably need to do:
`brew install imagemagick ghostscript cairo pango`.

To get it working on Ubuntu/EC2 is an exercise left to the reader…

1. http://docs.wand-py.org/en/0.4.4/

2016-12-13 10:34:18 +00:00

..

app

Add endpoint for generating an image of a letter

2016-12-13 10:34:18 +00:00

non_spreadsheet_files

…

spreadsheet_files

…

__init__.py

add tests for platform admin list ordering

2016-11-14 11:33:39 +00:00

conftest.py

add get_active_services method

2016-11-16 11:08:20 +00:00