public boolean isButtonClick() {
		Component clickedComponent = getClickedComponent();
		if (clickedComponent instanceof JButton) {
			return true;
		}
		return false;
	}
A class that knows how and where a given vertex was clicked.  Further, this class knows how 
to get clicked components within a given vertex.

@param <V> the vertex type
@param <E> the edge type
Ghidra/Framework/Graph/src/main/java/ghidra/graph/viewer/event/mouse/VertexMouseInfo.java