andrea antonello wrote:
We may have a problem here ... the layers view is not always open is it?
Good observation.
I usually hunt down the Map and try and see what is selected.
Is it possible to ask a layer if it is selected? I couldn't find that...
In the design docs there were a bunch of "bits" that can be thrown per
layer to indicate ....isSelected, isVisible and then a whole bunch of
extras for "isApplicable" - in order to check if a tool category will
work on a given layer (isEditable, isInfoable, etc...)
Checking the code:
- ILayer.isVisible() exists
- ILayer.isApplicable( String ) exists
- Layer.isSelectable()
But I do not see selection; I am going to check where the selection
lives hold on a second....
- I see the LayersView listening to the EditManager - and updating its
selection to match what is going on; but it looks like the EditManager
only records a single layer as selected at any one time
So best advise is to ...
- try the current workbench part and check if its selection has one (or
more) layers selected
- go through all the workbench parts and one that has one (or more)
layers selected
I am pretty sure it is this problem that Vitali was trying to solve - ie
a central service that would listen to the workbench and record the
"last" Layer/Layers selected. Similar in behavior to the tutorial I
mentioned earlier.
This is the downside to Eclipse RCP applications; there is often no
central point of control.
I suspect that we should allow the EditManager to record what layers are
selected; and then you can hunt down the current Map Editor; because the
Current Map is what any view or tool is supposed to be reflecting (not
another view that may or may not be around).
Jody
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