[cg2121]

Description

This PR reduces code in the hpp file by using a vector for signals.

Motivation and Context

Reduces code

How Has This Been Tested?

Tested widgets with source labels to make sure they still worked.

Types of changes

• Code cleanup (non-breaking change which makes code smaller or more readable)

Checklist:

• I have read the contributing document.
• My code has been run through clang-format.
• My code follows the project's style guidelines
• My code is not on the master branch.
• My code has been tested.
• All commit messages are properly formatted and commits squashed where appropriate.
• I have included updates to all appropriate documentation.