I am making a suggestion to have a second simple source view to show the folder structure instead of every source and header at once or like under the default view showing a file type hierarchy. Some thing like

Project
--> main.cpp
--> some_component/
--> some_component.cpp
--> some_component.h
--> some_other_component/
--> some_other_component.cpp
--> some_other_component.h

this is with qmake and not cmake.