Blender Git Commit Log

GP Add Primitives: Allow operator to work in Edit Mode too

It didn't really make sense why this was restricted to Draw mode only.
In particular, there are 2 good arguments for allowing it in editmode too:
1) In many ways, it's more similar to a Copy/Paste or Duplicate
operation in that it just dumps a bunch of stroke geometry
into the scene without you having to draw anything. We allow those,
so why not this.

2) Users are used to being able to go into Edit Mode and add a primitive
shape into the datablock to begin editing it. For consistency with
other modes, and also to prevent the "Creation" tab looking stupid
and redundant in EditMode, let's enable this.

Note:
* Sculpt/Weight Paint modes do not have this enabled for now. In those
modes, users are less likely to be concerned with adding geometry,
and more with modifying the existing geometry.