/* === S Y N F I G ========================================================= */
/*! \file ducktransform_scale.h
** \brief Template Header
**
** $Id$
**
** \legal
** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
**
** This package is free software; you can redistribute it and/or
** modify it under the terms of the GNU General Public License as
** published by the Free Software Foundation; either version 2 of
** the License, or (at your option) any later version.
**
** This package is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
** General Public License for more details.
** \endlegal
*/
/* ========================================================================= */
/* === S T A R T =========================================================== */
#ifndef __SYNFIG_STUDIO_DUCK_TRANSFORM_SCALE_H
#define __SYNFIG_STUDIO_DUCK_TRANSFORM_SCALE_H
/* === H E A D E R S ======================================================= */
#include "duckmatic.h"
/* === M A C R O S ========================================================= */
/* === T Y P E D E F S ===================================================== */
/* === C L A S S E S & S T R U C T S ======================================= */
namespace studio {
class Transform_Scale : public synfig::Transform
{
private:
synfig::Vector scale;
synfig::Vector origin;
public:
Transform_Scale(const synfig::GUID& guid, const synfig::Vector& scale,const synfig::Vector& origin=synfig::Vector(0,0)):
Transform(guid), scale(scale), origin(origin) { }
synfig::Vector perform(const synfig::Vector& x)const { return synfig::Vector((x[0]-origin[0])*scale[0]+origin[0],(x[1]-origin[1])*scale[1]+origin[1]); }
synfig::Vector unperform(const synfig::Vector& x)const { return synfig::Vector((x[0]-origin[0])/scale[0]+origin[0],(x[1]-origin[1])/scale[1]+origin[1]); }
synfig::String get_string()const
{
return "duck scale";
}
};
};
/* === E N D =============================================================== */
#endif