[josm-dev] JOSM Selection

[Raphael Mack]

Hi,

as there have been many request to edit gpx files (filter or drop nodes), I 
tried to work in that direction and make GPX points (WayPoints) 
selectable.

Therefore I made quite a few changes on the selection handling:
- introduction of a interface Selectable
- the current selection is stored in the layer instead of the DataSet
- DataSet.getSelected() and setSelected* are deprecated, as 
Main.map.mapView.getActiveLayer().getSelected() should be used
- SelectionListDialog now can display any selectable
- Marker, OsmPrimitive and WayPoint implement new interface Selectable
- SelectionListeners are not stored and (un)-registered in DataSet, but in 
Main now
- SelectAction can select all Selectables now and handles ctrl and shift to 
add to/remove from existing selection, rotation is handled in the 
OsmDataLayer, which is an ugly hack - feel free to suggest better ideas

Deletion of gpx points is the next step and I think it should be done the 
same way (via DeleteAction) as selecting (with SelectAction). Moving and 
rotation does not make sense for all selectable objects (Markers, Gpx 
points, etc.), that's why I think this should be done layer-dependent. 
Which lead to my kind-of-chaos implementation with rotation code in 
OsmDataLayer and selection code in SelectAction.

As I won't have much time in the next few days, I wanted to publish my 
current state and would be happy to get feedback and ideas, how the 
interplay of Actions with layer-dependent behavior could be implemented 
nicely.

A compiled josm-custom.jar and a diff against r587 can be found at:
http://files.raphael-mack.de/josm/josm-selection/

Cheers,
Rapha