Progress Info

[Michael Thaler]

Hello,

I tried to add progress info to the scaling code. To do this I included 
kis_progress_subject.h in kis_paint_device.h and tried to derrive 
KisPaintDevice from KisProgressSubject as done in
kis_gradient_painter.h and kis_gradient_painter.cc. Unfortunately this does 
not work because both KisPaintDevice and KisProgressSubject are derrived from 
QObject. A possible solution would probably be to not inherit KisPaintDevice 
from QObject because KisProgressSubject is already derrived from QObject and 
so KisPaintDevice is derrived from QObject automatically. But somehow this 
looks clumsy and I think the better solution would be to move the scaling 
code (and also the rotating code, even if the function is still empty) to a 
visitor that is then derrived from KisProgressSubject. I have no clue how to 
do this, so can someone do this for me? That would be great!

Greetings,
Michael