Notifies user that the drop was not succesfull.
If our clipboard is not found return the default system clipboard.
Returns drop type for given transferable and drop action If given transferable
contains multiple tra
Gets right transferable of given nodes (according to given drag action) and also
converts the transf
Returns array of paste types for given transferable. If given transferable
contains multiple transfe
Performs the drop. Performs paste on given paste type. (part of bugfix #37279,
Utility method created by Enno Sandner. Is it needed? I don't know (dstrupl).
Sets a runnable it will be executed after drop action is performed.
Utility method - chooses and returns right cursor for given user drag action.
Creates BufferedImage and Transparency.BITMASK Note: this method is copied from
Returns cursor created from given icon.