+++ /dev/null
-/* === S Y N F I G ========================================================= */
-/*! \file twirl.cpp
-** \brief Implementation of the "Twirl" layer
-**
-** $Id$
-**
-** \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
-*/
-/* ========================================================================= */
-
-/* === H E A D E R S ======================================================= */
-
-#ifdef USING_PCH
-# include "pch.h"
-#else
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#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>
-#include "twirl.h"
-
-#endif
-
-/* === U S I N G =========================================================== */
-
-using namespace etl;
-using namespace std;
-using namespace synfig;
-
-/* === G L O B A L S ======================================================= */
-
-SYNFIG_LAYER_INIT(Twirl);
-SYNFIG_LAYER_SET_NAME(Twirl,"twirl");
-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,"$Id$");
-
-/* === P R O C E D U R E S ================================================= */
-
-/* === M E T H O D S ======================================================= */
-
-/* === E N T R Y P O I N T ================================================= */
-
-Twirl::Twirl():
- Layer_Composite(1.0,Color::BLEND_STRAIGHT),
- center(0,0),
- radius(1.0),
- rotations(Angle::zero()),
- distort_inside(true),
- distort_outside(false)
-{
-}
-
-bool
-Twirl::set_param(const String & param, const ValueBase &value)
-{
- IMPORT(center);
- IMPORT(radius);
- IMPORT(rotations);
- IMPORT(distort_inside);
- IMPORT(distort_outside);
-
- return Layer_Composite::set_param(param,value);
-}
-
-ValueBase
-Twirl::get_param(const String ¶m)const
-{
- EXPORT(center);
- EXPORT(radius);
- EXPORT(rotations);
- EXPORT(distort_inside);
- EXPORT(distort_outside);
-
- EXPORT_NAME();
- EXPORT_VERSION();
-
- return false;
-}
-
-Layer::Vocab
-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"))
- .set_is_distance()
- .set_origin("center")
- );
-
- ret.push_back(ParamDesc("rotations")
- .set_local_name(_("Rotations"))
- .set_origin("center")
- );
-
- ret.push_back(ParamDesc("distort_inside")
- .set_local_name(_("Distort Inside"))
- );
-
- ret.push_back(ParamDesc("distort_outside")
- .set_local_name(_("Distort Outside"))
- );
-
- return ret;
-}
-
-synfig::Point
-Twirl::distort(const synfig::Point &pos,bool reverse)const
-{
- 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());
-
- Point twirled;
- twirled[0]=cos*centered[0]-sin*centered[1];
- twirled[1]=sin*centered[0]+cos*centered[1];
-
- return twirled+center;
-}
-
-synfig::Layer::Handle
-Twirl::hit_check(synfig::Context context, const synfig::Point &pos)const
-{
- return context.hit_check(distort(pos));
-}
-
-Color
-Twirl::get_color(Context context, const Point &pos)const
-{
- return context.get_color(distort(pos));
-}
-
-class Twirl_Trans : public Transform
-{
- 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);
- }
-};
-etl::handle<Transform>
-Twirl::get_transform()const
-{
- return new Twirl_Trans(this);
-}
-
-/*
-bool
-Twirl::accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const
-{
- SuperCallback supercb(cb,0,9500,10000);
-
- if(get_amount()==1.0 && get_blend_method()==Color::BLEND_STRAIGHT)
- {
- surface->set_wh(renddesc.get_w(),renddesc.get_h());
- }
- else
- {
- if(!context.accelerated_render(surface,quality,renddesc,&supercb))
- return false;
- if(get_amount()==0)
- return true;
- }
-
-
- int x,y;
-
- Surface::pen pen(surface->begin());
- const Real pw(renddesc.get_pw()),ph(renddesc.get_ph());
- Point pos;
- 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)
- for(x=0,pos[0]=tl[0];x<w;x++,pen.inc_x(),pos[0]+=pw)
- pen.put_value(color_func(pos));
- }
- else
- {
- for(y=0,pos[1]=tl[1];y<h;y++,pen.inc_y(),pen.dec_x(x),pos[1]+=ph)
- for(x=0,pos[0]=tl[0];x<w;x++,pen.inc_x(),pos[0]+=pw)
- pen.put_value(Color::blend(color_func(pos),pen.get_value(),get_amount(),get_blend_method()));
- }
-
- // Mark our progress as finished
- if(cb && !cb->amount_complete(10000,10000))
- return false;
-
- return true;
-}
-*/
projects / synfig.git / blobdiff