small refactoring
small refactoring

dagophil/vigra,cbecker/vigra,DaveRichmond-/vigra,timoMa/vigra,dstoe/vigra,ThomasWalter/vigra,xiwei-zhang/vigra,ThomasWalter/vigra,timoMa/vigra,dagophil/vigra,kod3r/vigra,funkey/vigra,hmeine/vigra,dstoe/vigra,DaveRichmond-/vigra,hmeine/vigra,cha007/vigra,cha007/vigra,psteinb/vigra,martinsch/vigra,kod3r/vigra,timoMa/vigra,cha007/vigra,funkey/vigra,mmuellner/vigra,mmuellner/vigra,cbecker/vigra,mmuellner/vigra,DaveRichmond-/vigra,psteinb/vigra,timoMa/vigra,xiwei-zhang/vigra,xiwei-zhang/vigra,timoMa/vigra,DaveRichmond-/vigra,DaveRichmond-/vigra,dagophil/vigra,hmeine/vigra,dagophil/vigra,capturePointer/vigra,mmuellner/vigra,ThomasWalter/vigra,hmeine/vigra,mmuellner/vigra,cbecker/vigra,funkey/vigra,dagophil/vigra,martinsch/vigra,cbecker/vigra,funkey/vigra,capturePointer/vigra,dagophil/vigra,psteinb/vigra,ThomasWalter/vigra,ThomasWalter/vigra,martinsch/vigra,dstoe/vigra,kod3r/vigra,xiwei-zhang/vigra,ThomasWalter/vigra,dstoe/vigra,timoMa/vigra,cbecker/vigra,hmeine/vigra,cha007/vigra,funkey/vigra,stuarteberg/vigra,xiwei-zhang/vigra,timoMa/vigra,capturePointer/vigra,capturePointer/vigra,DaveRichmond-/vigra,psteinb/vigra,kod3r/vigra,capturePointer/vigra,martinsch/vigra,stuarteberg/vigra,martinsch/vigra,cha007/vigra,psteinb/vigra,cbecker/vigra,xiwei-zhang/vigra,mmuellner/vigra,DaveRichmond-/vigra,hmeine/vigra,dstoe/vigra,mmuellner/vigra,kod3r/vigra,martinsch/vigra,xiwei-zhang/vigra,psteinb/vigra,kod3r/vigra,psteinb/vigra,stuarteberg/vigra,stuarteberg/vigra,stuarteberg/vigra,cha007/vigra,kod3r/vigra,dagophil/vigra,capturePointer/vigra,ThomasWalter/vigra,stuarteberg/vigra,hmeine/vigra,capturePointer/vigra,funkey/vigra,stuarteberg/vigra,dstoe/vigra,funkey/vigra,cha007/vigra,dstoe/vigra