Blur() {}
Blur(const synfig::Point &s, int t, synfig::ProgressCallback *callb=0):size(s), type(t), cb(callb) {}
Blur(synfig::Real sx, synfig::Real sy, int t, synfig::ProgressCallback *callb = 0): size(sx,sy), type(t), cb(callb) {}
Blur() {}
Blur(const synfig::Point &s, int t, synfig::ProgressCallback *callb=0):size(s), type(t), cb(callb) {}
Blur(synfig::Real sx, synfig::Real sy, int t, synfig::ProgressCallback *callb = 0): size(sx,sy), type(t), cb(callb) {}