Users should not be given the impression that they can modify these items.
This still does not solve the issue where library items cannot be dragged into prims or user inventory any time after they are initially seen.
Curiously, manually copying and pasting still appears to work.
On the surface, this seems to have something to do with library item caching on the client, since deleting the cache allows drag to work again once
Not sure what the exact problem is.
Some items had completely wrong permissions - this is easier than correcting them all.
The ability to set permissions in xml is retained since there are use cases for this (e.g. to create no-mod library scripts)
Library items always need the same permissions, so it doesn't make sense to load them from the xml files. This just opens the door to permissions mistakes.
Fixed this by inspecting Shape.SculptEntry at various places instead of Shape.SculptType. Sculpties actually have a SculptType of Cylinder - only true mesh is SculptType.Mesh
This addresses http://opensimulator.org/mantis/view.php?id=5595
This stops problems when we undo a few steps and start off down another path.
Surprisingly, apart from this now fixed problem, redo appears to be working too.
I think (ha ha) this largely fixes undo, except for the fact that rotation a set of prims with 'edit linked parts' selected doesn't quite work properly (though this works fine if the checkbox isn't selected).
Also, the double undo bug for resize is still present.
Redo might be incredibly buggy, haven't even looked at that yet.
The only obviously broken things right now are the undo of the position of just a root prim (stays in place) and the fact that resizes need two undoes.
However, what happens now is that undo just doesn't do anything when the root prim is selected on its own. This requires more code than just fiddling with undo states.
This involves implementing a boolean in UndoState to signal whether the undo needs to be done for an entire group/linkset or just a single prim
Resizing individual components of linksets is still dodgy.
Resizing still has to be down twice, since for some reason the client is sending two multiobjectupdate packets on every resize except the very first. This applies to single prims and linksets. Need to look into this.
Undo rotation and position appear to be working.
Resizing a single prim appears to be working, though the undo has to be done twice.
Resizing a group of prims still does not work properly - possibly because in the UndoState we don't store a knowledge of when we're resizing a whole group rather than individual prims.
This needs to be addressed.
Justin Clark-Casey (justincc)