Here is a list of all files with brief descriptions:

AboutSlide.cpp
AboutSlide.h
CommandUI.cpp
CommandUI.h
Grid.cpp
Grid.h
Grid15.h
GridHelp.cpp
GridHelp.h
GridManager.cpp
GridManager.h
GTKSlide.h
main.cpp
MainWindow.cpp
MainWindow.h
ProgramStuff.h
SaveManager.h
SlideFileDialog.cpp
SlideFileDialog.h
TileGrid.cpp
TileGrid.h