The problem is that curve and dyna the image which isn't available in the
scratchpad. Not sure how to solve that.

SVN commit 1106769 by lukast:

o Clean up the code
o Fix the settings serialization/deserialization
o Remove KisImage dependency, so that we can work in Scratchpad

CCBUG:231468

 M  +46 -257   curve_brush.cpp  
 M  +4 -34     curve_brush.h  
 M  +7 -7      kis_curve_paintop.cpp  
 M  +1 -14     kis_curve_paintop.h  
 M  +8 -8      kis_curve_paintop_settings.cpp  
 M  +3 -4      kis_curve_paintop_settings.h  
 M  +22 -25    kis_curve_paintop_settings_widget.cpp  
 M  +7 -5      kis_curve_paintop_settings_widget.h  


WebSVN link: http://websvn.kde.org/?view=rev&revision=1106769

SVN commit 1175981 by lukast:

Make dyna paint in scratchpad.

Dyna paintop needs to know the dimension of the canvas,
KisImage is used for it, but scratchpad is KisImage-free,
so use some dummy dimension.

CCBUG:231468

 M  +14 -14    dyna_brush.cpp  
 M  +8 -5      dyna_brush.h  
 M  +6 -3      kis_dyna_paintop.cpp  
 M  +0 -1      kis_dyna_paintop.h  


WebSVN link: http://websvn.kde.org/?view=rev&revision=1175981

For users: the duplicate is too complex for scratchpad, so scratchpad is
disabled for duplicate.

For developers:
If we manage to get rid of the KisImage in paintops and allow to setup source
in the scrathpad, then we can add support to the duplicate too.