/* === S Y N F I G ========================================================= */
-/*! \file spiralgradient.cpp
-** \brief Template Header
+/*! \file twirl.cpp
+** \brief Implementation of the "Twirl" layer
**
-** $Id: twirl.cpp,v 1.1.1.1 2005/01/04 01:23:10 darco Exp $
+** $Id$
**
** \legal
** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
SYNFIG_LAYER_INIT(Twirl);
SYNFIG_LAYER_SET_NAME(Twirl,"twirl");
-SYNFIG_LAYER_SET_LOCAL_NAME(Twirl,_("Twirl"));
-SYNFIG_LAYER_SET_CATEGORY(Twirl,_("Distortions"));
+SYNFIG_LAYER_SET_LOCAL_NAME(Twirl,N_("Twirl"));
+SYNFIG_LAYER_SET_CATEGORY(Twirl,N_("Distortions"));
SYNFIG_LAYER_SET_VERSION(Twirl,"0.1");
-SYNFIG_LAYER_SET_CVS_ID(Twirl,"$Id: twirl.cpp,v 1.1.1.1 2005/01/04 01:23:10 darco Exp $");
+SYNFIG_LAYER_SET_CVS_ID(Twirl,"$Id$");
/* === P R O C E D U R E S ================================================= */
distort_outside(false)
{
}
-
+
bool
Twirl::set_param(const String & param, const ValueBase &value)
{
IMPORT(rotations);
IMPORT(distort_inside);
IMPORT(distort_outside);
-
+
return Layer_Composite::set_param(param,value);
}
EXPORT(rotations);
EXPORT(distort_inside);
EXPORT(distort_outside);
-
+
EXPORT_NAME();
EXPORT_VERSION();
-
+
return false;
}
Twirl::get_param_vocab()const
{
Layer::Vocab ret;
-
+
ret.push_back(ParamDesc("center")
.set_local_name(_("Center"))
);
-
+
ret.push_back(ParamDesc("radius")
.set_local_name(_("Radius"))
.set_description(_("This is the radius of the circle"))
{
Point centered(pos-center);
Real mag(centered.mag());
-
+
Angle a;
if((distort_inside || mag>radius) && (distort_outside || mag<radius))
a=rotations*((centered.mag()-radius)/radius);
else
return pos;
-
+
if(reverse) a=-a;
-
- const Real sin(Angle::sin(a).get());
- const Real cos(Angle::cos(a).get());
+
+ const Real sin(Angle::sin(a).get());
+ const Real cos(Angle::cos(a).get());
Point twirled;
twirled[0]=cos*centered[0]-sin*centered[1];
etl::handle<const Twirl> layer;
public:
Twirl_Trans(const Twirl* x):Transform(x->get_guid()),layer(x) { }
-
+
synfig::Vector perform(const synfig::Vector& x)const
{
return layer->distort(x,true);
}
-
+
synfig::Vector unperform(const synfig::Vector& x)const
{
return layer->distort(x,false);
return true;
}
-
+
int x,y;
Surface::pen pen(surface->begin());
Point tl(renddesc.get_tl());
const int w(surface->get_w());
const int h(surface->get_h());
-
+
if(get_amount()==1.0 && get_blend_method()==Color::BLEND_STRAIGHT)
{
for(y=0,pos[1]=tl[1];y<h;y++,pen.inc_y(),pen.dec_x(x),pos[1]+=ph)