Make sure preview is stopped as soon as a drag operation starts. This
is done by overloading QAbstractItemView::startDrag() and emit a signal
from there which is connected to an according slot in ResourceBrowser.
Signed-off-by: Tobias Doerffel <tobias.doerffel@gmail.com>
Commit ea2b165cbd was incomplete.
Fixed some #include statements. All compile errors should be gone now.
Signed-off-by: Tobias Doerffel <tobias.doerffel@gmail.com>
Naming classes like ResourcesItem or ResourcesDatabase is bad style,
therefore rename all classes and files to be Resource*.
Signed-off-by: Tobias Doerffel <tobias.doerffel@gmail.com>
