= Papywizard v2 internal design =

This is a draft document.

== Framework ==

The idea is to entirely build Papywizard as a framework, where different parts are just services, so new features can be added by users, at least to prototype them. It is also better for upgrading only a few parts of the code.

=== Engines ===

The core of Papywizard will be build arround '''engines''', which will be hard-coded. Main engines are:

 * pano engines
  * mosaic engine
  * preset engine
 * timelapse engine

Engines can use other engines (ex: a timelapse pano).

=== Plugins ===

Engines will use some plugins to be able to achieve their purpose. These plugins will be splitted in categories:

 * axis control - axis can be manual
 * camera shutter triggering - through hardware, tethered
 * hardware communication - transport and protocol
 * timer/intervalometer - or is it timelapse?
 * display - shooting area, text area, custom
 * GPS
 * data storage - file, database, server...
 * analysis - picture control for automatic bracketing

A plugin should be able to :

 * register itself in the framework according to its interface
 * add GUI features (display, preferences...)
 * be dynamically enabled/disabled
 * check if dependent plugins are available

=== Services ===

Services are low-level features, like logging, persistence, configuration...