Drag Toggle Components

[Dreadrith]

Seems to be a popular request. The ability to click and drag the mouse over components to toggle them rather than clicking them individually. gif from lunarvoid

Best way I can think of is to do the following

On left mouse down

1. Set a custom hot control id unique to this feature
2. Have a Hashset<Object> ready and cleared
3. Add the clicked component to that hashset

While hot control is equal to the unique one from above

• If a component icon rect contains the mouse
  • if the hashset already contains the component, ignore it. That means it was already toggled.
  • If the hashset doesn't contain the component, toggle it, then add it to the hashet

That should work as requested and expected.

[Dreadrith]

Implemented with commit https://github.com/Dreadrith/HierarchyPlus/commit/58842e706fc8471ee0c33ab8670e5b7891b4c7f4