removing Marble traces from the Subsurface tree

[Dirk Hohndel]

> On Aug 24, 2017, at 8:55 PM, Miika Turkia <miika.turkia at gmail.com> wrote:
> 
> On Thu, Aug 24, 2017 at 11:49 PM, Lubomir I. Ivanov <neolit123 at gmail.com> wrote:
>> with the new map widget we started phasing out the Marble globe...
>> the transition is smooth in the lines of using NO_MARBLE as toggle -
>> i.e. it either uses Marble or QtLocation.
>> 
>> we should probably start removing it as a dependency from both c++,
>> cmake and build scripts (i might needs some help for the later). but
>> the question is - should we? do we want to keep it?
>> 
>> i got no issue reports about the new Map widget which means all is good with it.
> 
> Any idea about the following error message?
> 
> qrc:/MapWidget.qml:45: Error: Cannot assign [undefined] to
> QDeclarativeGeoMapType*
> qml: MapWidget.qml: cannot find a plugin with the name 'googlemaps'
> 
> I am currently getting no map when compiling myself. I am pretty sure
> it did work earlier with this laptop, but not anymore. But then again,
> it might have been different laptop where the new map was working.

So now that this is fixed, I think we should go back to doing two things

a) figure out how to package this for the distros / AppImage
b) start ripping out all the Marble dependencies and code, etc

I could really use some help with a) - I'll be at a conference in Las Vegas
all week and doubt I'll have any time to spend on Subsurface :-(

/D