/*
 * This macro defines a special constructor for GElement descendants.
 * The reason this is done is that we need to drop ownership of such
 * classes if they are given a containing GElement in their constructors.
 * If this isn't done, the objects would get destroyed twice -- first by
 * their containers and then by SWIG.
 */
%define DISOWN(CLASS)
%pythonappend Amanith::CLASS::CLASS "if len(args) and isinstance(args[0], GElement): self.thisown = 0"
%enddef

DISOWN(GElement)
DISOWN(GKernel)
DISOWN(GCurve1D)
DISOWN(GCurve2D)
DISOWN(GFont2D)
DISOWN(GPixelMap)
DISOWN(GAnimElement)
DISOWN(GImpExp)