Introduced three new events:
* CONNECTING - fired just before starting the connection process
* DISCONNECTING - fired just before starting the (active) disconnection
process
* PRINTER_STATE_CHANGED - fired every time the printer state changes
Also introduced new GCODE script beforePrinterDisconnected, which will
get sent just before the printer gets (actively) disconnected. Also enabled
communication object to wait for the send queue to be emptied before
closing it, in order to allow sending all lines from the disconnect script.
Custom exception should be derived from Exception, not BaseException.
Not only is this specified in the python documentation, but also
tornado will be able to handle Exceptions in requests perfectly fine
and return an HTTP 500 for them, but crash hard (as in, server shut
down follows) for BaseExceptions.
(cherry picked from commit 29b047b)
Cut off of the temperature graph is now not based on the number of data points any more but on the actual time of the data points. Anything older than ``n`` minutes will be cut off, with ``n`` defaulting to 30min. This value can be changed under "Temperatures" in the Settings
Closes#343
Also, modify the cura slicer to recognize the setting and avoid
adjusting the model position, just leave it in the center where it would
be on a circular platform
Multiple mixins are allowed of course. Allowing multiple implementations lead to too many problems due to plugin names for referring to the APIs of SimpleApiPlugins or the assets of AssetPlugins.
Hence __plugin_implementations__ has been deprecated in favor of __plugin_implementation__. The plugin subsystem will automatically copy the first implementation from __plugin_implementations__ to __plugin_implementation__ and log a deprecation warning.
Adjusted documentation accordingly. Also added docs for helpers.
Preprocessing for better performancy, unit tests for preprocessing, controls don't need a type anymore (makes things way less complicated and repetitive)
Refactored some things in octoprint.util.comm and octoprint.settings, added migration function to get users of the devel version up to date with their gcode scripts. Migration function will be removed again one week from now.
- renamed methods from camelCase to snake_case
- renamed callback mathods from comm module from camelCase to snake_case
- extracted and documented public interface to be used by plugins
- extracted callback interface to be implemented by subscribed callbacks to printer
- moved standard implementation to custom package
- moved time estimation classes to custom package
OctoPrint got confused by prepended / in files on printer's SD cards
located within folders.
New handling makes comm always use absolute path names for SD card
file names (even those in the root), printer converts between
this representation and the storage interface compatible version
of file and folder names being stated relative to the root (so
no leading /)
