/* === S Y N F I G ========================================================= */
/*! \file zoom.cpp
-** \brief writeme
+** \brief Implementation of the "Zoom" layer
**
-** $Id: zoom.cpp,v 1.2 2005/01/24 03:08:17 darco Exp $
+** $Id$
**
** \legal
** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
SYNFIG_LAYER_INIT(Zoom);
SYNFIG_LAYER_SET_NAME(Zoom,"zoom");
-SYNFIG_LAYER_SET_LOCAL_NAME(Zoom,_("Zoom"));
-SYNFIG_LAYER_SET_CATEGORY(Zoom,_("Transform"));
+SYNFIG_LAYER_SET_LOCAL_NAME(Zoom,N_("Zoom"));
+SYNFIG_LAYER_SET_CATEGORY(Zoom,N_("Transform"));
SYNFIG_LAYER_SET_VERSION(Zoom,"0.1");
-SYNFIG_LAYER_SET_CVS_ID(Zoom,"$Id: zoom.cpp,v 1.2 2005/01/24 03:08:17 darco Exp $");
+SYNFIG_LAYER_SET_CVS_ID(Zoom,"$Id$");
/* === P R O C E D U R E S ================================================= */
amount(0)
{
}
-
+
bool
Zoom::set_param(const String & param, const ValueBase &value)
{
IMPORT(center);
IMPORT(amount);
-
+
return false;
}
EXPORT_NAME();
EXPORT_VERSION();
-
- return ValueBase();
+
+ return ValueBase();
}
Layer::Vocab
Zoom::get_param_vocab()const
{
Layer::Vocab ret;
-
+
ret.push_back(ParamDesc("amount")
.set_local_name(_("Amount"))
.set_description(_("Amount to zoom in"))
.set_local_name(_("Center"))
.set_description(_("Point to zoom in to"))
);
-
+
return ret;
}
etl::handle<const Zoom> layer;
public:
Zoom_Trans(const Zoom* x):Transform(x->get_guid()),layer(x) { }
-
+
synfig::Vector perform(const synfig::Vector& x)const
{
return (x-layer->center)*exp(layer->amount)+layer->center;
}
-
+
synfig::Vector unperform(const synfig::Vector& x)const
{
return (x-layer->center)/exp(layer->amount)+layer->center;
synfig::Rect
Zoom::get_full_bounding_rect(synfig::Context context)const
{
- return context.get_full_bounding_rect();
+ return (context.get_full_bounding_rect()-center)*exp(amount)+center;
}
-