Crs parameters in algorithm settings in modeler
This makes it easier to pick static CRSes for the parameter,
and also makes it obvious to users that they can use a fixed
CRS parameter in their model (as opposed to one taken from
a layer or input)
fixes#14703
Include C++ and Python tests
Travis won: ported all test cases to Python
and disabled C++ companion test (still useful locally and
for debugging)
For the curious: QTemporaryFile is not working as expected
Moved to Qt5 new style signals
Disabled C++ test and connected cancel to progress
Make string comparison on SSL errors more robust
When inserting multiple features in a single prepared statement, the spatialite
provider would skip any default for individual features, even though they have
been specified in the field list, resulting in missing fields.
- use [close without saving][cancel][save] option when closing
a modeler with unsaved changes
- invert mouse wheel zoom in/out to match that of QGIS' main
canvas window
- holding the mouse middle click and dragging will pan the
modeler view
This adds a new input type for expression inputs. Expression
inputs can be linked to a parent layer so that the builder
shows the correct fields and layer variables.
It's designed for two use cases:
1. to be used when an algorithm specifically requires an expression,
eg Select by Expression and Extract by Expression.
2. to be potentially used as a replacement input instead of string
or number literals in algorithms. Eg - if the simplify algorithm
tolerance parameter was replaced with an expression paremeter, then
this expression would be evaluated for every feature before
simplifying that feature. It would allow parameters to be calculated
per feature, as opposed to the current approach of calculating
a parameter once before running the algorithm. It would also
mean algorithms like "variable distance buffer" would no longer
be needed, as a single "buffer" algorithm could then be used
for either a fixed distance, field based, or expression based
distance.
