--- /dev/null
+/* === S Y N F I G ========================================================= */
+/*! \file insideout.cpp
+** \brief Implementation of the "Inside Out" layer
+**
+** $Id$
+**
+** \legal
+** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+** Copyright (c) 2007 Chris Moore
+**
+** 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
+**
+** === N O T E S ===========================================================
+**
+** ========================================================================= */
+
+/* === H E A D E R S ======================================================= */
+
+#ifdef USING_PCH
+# include "pch.h"
+#else
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "insideout.h"
+
+#include <synfig/string.h>
+#include <synfig/time.h>
+#include <synfig/context.h>
+#include <synfig/paramdesc.h>
+#include <synfig/renddesc.h>
+#include <synfig/surface.h>
+#include <synfig/value.h>
+#include <synfig/valuenode.h>
+#include <synfig/transform.h>
+
+#endif
+
+/* === M A C R O S ========================================================= */
+
+/* === G L O B A L S ======================================================= */
+
+SYNFIG_LAYER_INIT(InsideOut);
+SYNFIG_LAYER_SET_NAME(InsideOut,"inside_out");
+SYNFIG_LAYER_SET_LOCAL_NAME(InsideOut,N_("Inside Out"));
+SYNFIG_LAYER_SET_CATEGORY(InsideOut,N_("Distortions"));
+SYNFIG_LAYER_SET_VERSION(InsideOut,"0.1");
+SYNFIG_LAYER_SET_CVS_ID(InsideOut,"$Id$");
+
+/* === P R O C E D U R E S ================================================= */
+
+/* === M E T H O D S ======================================================= */
+
+InsideOut::InsideOut():
+ origin(0,0)
+{
+}
+
+bool
+InsideOut::set_param(const String & param, const ValueBase &value)
+{
+ IMPORT(origin);
+ return false;
+}
+
+ValueBase
+InsideOut::get_param(const String & param)const
+{
+ EXPORT(origin);
+
+ EXPORT_NAME();
+ EXPORT_VERSION();
+
+ return ValueBase();
+}
+
+synfig::Layer::Handle
+InsideOut::hit_check(synfig::Context context, const synfig::Point &p)const
+{
+ Point pos(p-origin);
+ Real inv_mag=pos.inv_mag();
+ Point invpos(pos*inv_mag*inv_mag);
+ return context.hit_check(invpos+origin);
+}
+
+Color
+InsideOut::get_color(Context context, const Point &p)const
+{
+ Point pos(p-origin);
+ Real inv_mag=pos.inv_mag();
+ Point invpos(pos*inv_mag*inv_mag);
+ return context.get_color(invpos+origin);
+}
+
+class InsideOut_Trans : public Transform
+{
+ etl::handle<const InsideOut> layer;
+public:
+ InsideOut_Trans(const InsideOut* x):layer(x) { }
+
+ synfig::Vector perform(const synfig::Vector& x)const
+ {
+ Point pos(x-layer->origin);
+ Real inv_mag=pos.inv_mag();
+ if(!isnan(inv_mag))
+ return (pos*(inv_mag*inv_mag)+layer->origin);
+ return x;
+ }
+
+ synfig::Vector unperform(const synfig::Vector& x)const
+ {
+ Point pos(x-layer->origin);
+ Real inv_mag=pos.inv_mag();
+ if(!isnan(inv_mag))
+ return (pos*(inv_mag*inv_mag)+layer->origin);
+ return x;
+ }
+};
+etl::handle<Transform>
+InsideOut::get_transform()const
+{
+ return new InsideOut_Trans(this);
+}
+
+Layer::Vocab
+InsideOut::get_param_vocab()const
+{
+ Layer::Vocab ret;
+
+ ret.push_back(ParamDesc("origin")
+ .set_local_name(_("Origin"))
+ .set_description(_("Defines the where the center will be"))
+ );
+
+ return ret;
+}