Re: Warnings in a filter

[Bernhard Herzog]

Antoon Pardon <address@hidden> writes:

> What is the best way to give a warning in a sketch filter.
> 
> Some format don't allow for all the possibilities available
> in sketch. What would be the best way to give the user
> a warning when the users has a design with such facilities
> that he wants to export?

The import filters have a warning mechanism with the add_message method.
Export filter don't have that, though.

For export filters it's probably best to implement something similar to
the add_message method which just accumulates all the warnings generated
during the export and at the end to call
Sketch.warn.warn(USER, complete_message)
with complete_message being an aggregate of all messages (see
Sketch/Base/load.py for the implementation of add_message and the
Messages method which creates a aggregated message).

The necessary import statement should be something like

from Sketch.warn import warn, USER


   Bernhard

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