Instead of directly calling notifyTilingWindowActivated() the signal
clientActivated() is used and connected. Including tiling.h is no longer
needed in activation.cpp.
The direct method calls from class Client were removed and replaced by
connecting to the appropriate signals emitted by class Client. The
affected methods in class Tiling are notifyTilingWindowMinimizeToggle() and
updateAllTiles() which are now private Q_SLOTS.
Including tiling.h in class Client is no longer needed and was removed.
The direct method calls for createTile(), removeTile() and resizeing the
tiling layouts from class Workspace are replaced by connecting to the
appropriate signal. The methods are slots now and a new slot for resizeing
the tiling layouts was introduced.
This initial commit introduces a new class Tiling. It is provided by
the files tiling/tiling.h and tiling/tiling.cpp. It covers all the
Tiling functionality which was provided by Workspace. In this initial
commit, all the functions were just moved and adjusted.
A new member variable m_tiling is introduced to Workspace, which
makes the new class Tiling accessible from Workspace.
The Tiling pointer is created in the constructor and deleted in
the deconstructor. Also a getter method tiling() is provided.
All calls from other classes are updated to use the methods in class
Tiling now.
