Just wondering about future use cases... Is the DAGView a general implementation and may display arbitrary graph Data? or at least arbitrary set of ViewProviders/DocumentObjects? or is it nailed to display App::Document content?

Ah, I see.. The old interface is used mainly by the Group objects in FreeCAD. The new mimic will be broader but, as you saw already, needs more love. I stopped it till I get more of the basic Assembly stuff done to really use it.. Also note that currently both of modes are slightly broken: the old ...

For a drag target its important to know the position of the drop and the mouse button and keys pressed. Imagine you drag a Screw out of a catalog view and drop it on a 3D object. There you maybe want to check of you hit a hole-feature and do the right positioning. Especially in Assembly I want to u...

According to this you'd need to add a custom bb code...

I've already fixed that for Origin's planes in my branch if you wonder... I'm unsure now if we should to do that for non-PartDesign sketches, but it will be a single line fix and can be discussed later... Is there a risk to break file compatibility here? File designed in current assembly branch won'...

The Detail interface replace the usage of SoFCSelection node and gives you more control. Which kind of (Inventor) Detail shows what kind of string is completely on you. FreeCAD selection is only interested in an Subelement string. The rest is local to the viewProvider... Ok, as I can see to handle ...

If you see a document as a DAG, it can have more then one root objects, which are in no way easy to determine. Tip was introduced for a multi-document environment. A pure PartDesign document will have the Tip pointing to a Part. A Assembly document to the root Assembly/View. A FEM document to the A...

Other then the more complex types in FreeCAD, some of the simpler objects in the document can only be selected as a whole. There the string containing the subelement name is set to "Main", which means basically "there is no subelement selected use the whole thing". Yes, sure, but as I can see Main ...

Thanks for looking into this. I've made some changes, and a new branch: https://github.com/eivindkv/free-cad-code/tree/master-warnings-20150902 FreeCAD changes looks good but "Mod/Robot: Removed -Wunused-variable warnings." Salomemesh changes are still controversial in several ways IMHO, consider t...