wxGUI: Add the ProjPicker page to the Location Wizard (Continutation)

[ocsmit]

This pull request is a continuation of the work of #1770 in addressing #1253 to add a location wizard which is spatially queryable.

The goals/scope of the continuation are

• Inclusion of toolbar for users. ¹
• Smoother OSM map loading (e.g. lazy loading, separate thread, ...). ²
• Merge with standard EPSG search wizard. ²

@HuidaeCho Feel free to add anything I missed!

[HuidaeCho]

I think the problem with this replacing the current default is that it requires an Internet connection. We should either

1. add it as the default, but keep the EPSG search or
2. check for an Internet connection and enable it if available, otherwise fall back to the EPSG search (what if data is expensive?)

[nilason]

You’d be helped by checking the Python with Flake8, there are a few not insignificant warnings. For one, you should consider using raw strings (r”…”) for regex patterns.

[HuidaeCho]

Pan and draw icons are now functional. @ocsmit, do we need more icons?

[HuidaeCho]

There is an issue in the Summary window with wxPython 4.1.1.

[ocsmit]

Pan and draw icons are now functional. @ocsmit, do we need more icons?

That should be all that we need. Appreciate you making them functional.

There is an issue in the Summary window with wxPython 4.1.1.

I can not recreate the description issue on my machine, see below

System Info                                                                     
GRASS version: 8.0.dev                                                          
Code revision: 80cb7f91a                                                        
Build date: 2022-05-20                                                          
Build platform: x86_64-pc-linux-gnu                                             
GDAL: 3.0.4                                                                     
PROJ: 6.3.1                                                                     
GEOS: 3.8.0                                                                     
SQLite: 3.31.1                                                                  
Python: 3.8.10                                                                  
wxPython: 4.1.1                                                                 
Platform: Linux-5.4.0-110-generic-x86_64-with-glibc2.29 

[HuidaeCho]

Flake8 is happy with

l, r = 1, 2

but not with

l, O = 1, 2

and

l = 1
r = 2

Inconsistency... As a result, we have inconsistent naming.

• l, r, t, b
• le, ri, to, bo
• left, right, top, bottom
• n, s, w, e
• north, south, west, east

Many short variable names fail Pylint testing because this new module is not excluded from .pylintrc.

[HuidaeCho]

Working on pylint...