Task:     - 244263
RevBy:    - dt

Done with Roberto Raggi

RevBy:    - dt

RevBy: Eike

RevBy: Eike
Details: Remove leftover defines/includes

Should be pretty safe to cast the apparently unsigned return value of
"sizeof" to a regular integer.

Details:  - Happened in release builds when opening pro files with
CONFIG scopes and a non-valid Qt version set.

RevBy:    Thorbjorn
Details:  calls the newly introduced QLocalServer::removeServer()
function before listening. The problem was: When the socket file was
left there after the application quit (e.g. because of not closing it or
when the app crashed), the first call to listen failed with "address
already in use" error. Before, listen() would delete that file in that
case, but that behavior changed and the "removeServer()" method
introduced instead.

    RevBy:    dt
    Details:  create QDir objects ony when needed

Task:     -
RevBy:    thorbjorn
AutoTest: -
Details:  -

Prevented it from re-generating an icon for the large image every time
it needed to be drawn.

Task:     238307
RevBy:    thorbjorn
AutoTest: -
Details:  -

Task:     -
RevBy:    -
AutoTest: -
Details:  If the user wants to add a resource which is not located in the directory/a subdirectory of the qrc-file, he is asked what should be done. If he chose to copy the file to another directory, the check, if this directory is valid ((sub-)directory of the qrc-file) was missing. Added it.

Fixes:    "Add anyway" button must not be shown, when a resource file shall be added and it is not located in the (sub-)directory of the qrc-file

Task:     -
RevBy:    thorbjorn
AutoTest: -
Details:  -

The undo/redo was broken due to connections between
can{Undo,Redo}Changed() and updateCurrent(). This also caused the weird
cursor behaviour.

The resource tooltip had the string "Qt::ToolTipRole" prepended to it
due to a leftover debug line.

Task:     238308
RevBy:    -
AutoTest: -
Details:  Only files in unique list are added to the resource file (before file_list was used -> duplicates)

Task:     238308
RevBy:    eike
AutoTest: -
Details:  Instead of the text and prefix of the file to add, pointers were compared. Thus the function always returned false and duplicates were not recognized. Replaced struct FileList with a class FileList, which is inherited from QList and added the function containsList which checks the needed values.