+++ /dev/null
-/* === S Y N F I G ========================================================= */
-/*! \file timeloop.cpp
-** \brief Implementation of the "Time Loop" layer
-**
-** $Id$
-**
-** \legal
-** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
-** Copyright (c) 2007, 2008 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 "timeloop.h"
-#include <synfig/valuenode.h>
-#include <synfig/valuenode_const.h>
-#include <synfig/valuenode_subtract.h>
-#include <synfig/time.h>
-#include <synfig/context.h>
-#include <synfig/paramdesc.h>
-#include <synfig/renddesc.h>
-#include <synfig/value.h>
-
-#endif
-
-using namespace synfig;
-using namespace std;
-using namespace etl;
-
-/* === M A C R O S ========================================================= */
-
-/* === G L O B A L S ======================================================= */
-
-SYNFIG_LAYER_INIT(Layer_TimeLoop);
-SYNFIG_LAYER_SET_NAME(Layer_TimeLoop,"timeloop");
-SYNFIG_LAYER_SET_LOCAL_NAME(Layer_TimeLoop,N_("Time Loop"));
-SYNFIG_LAYER_SET_CATEGORY(Layer_TimeLoop,N_("Other"));
-SYNFIG_LAYER_SET_VERSION(Layer_TimeLoop,"0.2");
-SYNFIG_LAYER_SET_CVS_ID(Layer_TimeLoop,"$Id$");
-
-/* === P R O C E D U R E S ================================================= */
-
-/* === M E T H O D S ======================================================= */
-
-Layer_TimeLoop::Layer_TimeLoop()
-{
- old_version=false;
- only_for_positive_duration=false;
- symmetrical=true;
- link_time=0;
- local_time=0;
- duration=1;
-}
-
-Layer_TimeLoop::~Layer_TimeLoop()
-{
-}
-
-bool
-Layer_TimeLoop::set_param(const String & param, const ValueBase &value)
-{
- if(old_version)
- {
- IMPORT(start_time);
- IMPORT(end_time);
- }
- else
- {
- IMPORT(local_time);
- IMPORT(link_time);
- IMPORT(duration);
- IMPORT(only_for_positive_duration);
- IMPORT(symmetrical);
- }
-
- return Layer::set_param(param,value);
-}
-
-ValueBase
-Layer_TimeLoop::get_param(const String & param)const
-{
- EXPORT(link_time);
- EXPORT(local_time);
- EXPORT(duration);
- EXPORT(only_for_positive_duration);
- EXPORT(symmetrical);
- EXPORT_NAME();
- EXPORT_VERSION();
-
- return Layer::get_param(param);
-}
-
-Layer::Vocab
-Layer_TimeLoop::get_param_vocab()const
-{
- Layer::Vocab ret(Layer::get_param_vocab());
-
- ret.push_back(ParamDesc("link_time")
- .set_local_name(_("Link Time"))
- );
-
- ret.push_back(ParamDesc("local_time")
- .set_local_name(_("Local Time"))
- );
-
- ret.push_back(ParamDesc("duration")
- .set_local_name(_("Duration"))
- );
-
- ret.push_back(ParamDesc("only_for_positive_duration")
- .set_local_name(_("Only For Positive Duration"))
- );
-
- ret.push_back(ParamDesc("symmetrical")
- .set_local_name(_("Symmetrical"))
- );
-
- return ret;
-}
-
-bool
-Layer_TimeLoop::set_version(const String &ver)
-{
- if (ver=="0.1")
- old_version = true;
-
- return true;
-}
-
-void
-Layer_TimeLoop::reset_version()
-{
- // if we're not converting from an old version of the layer, there's nothing to do
- if (!old_version)
- return;
-
- old_version = false;
-
- // these are the conversions to go from 0.1 to 0.2:
- //
- // local_time = start_time
- // duration = end_time - start_time
- // if (time < start_time)
- // link_time = -duration : if we want to reproduce the old behaviour - do we?
- // else
- // link_time = 0
-
- // convert the static parameters
- local_time = start_time;
- duration = end_time - start_time;
- only_for_positive_duration = true;
- symmetrical = false;
-
- //! \todo layer version 0.1 acted differently before start_time was reached - possibly due to a bug
- link_time = 0;
-
- // convert the dynamic parameters
- const DynamicParamList &dpl = dynamic_param_list();
-
- // if neither start_time nor end_time are dynamic, there's nothing more to do
- if (dpl.count("start_time") == 0 && dpl.count("end_time") == 0)
- return;
-
- etl::rhandle<ValueNode> start_time_value_node, end_time_value_node;
- LinkableValueNode* duration_value_node;
-
- if (dpl.count("start_time"))
- {
- start_time_value_node = dpl.find("start_time")->second;
- disconnect_dynamic_param("start_time");
- }
- else
- start_time_value_node = ValueNode_Const::create(start_time);
-
- if (dpl.count("end_time"))
- {
- end_time_value_node = dpl.find("end_time")->second;
- disconnect_dynamic_param("end_time");
- }
- else
- end_time_value_node = ValueNode_Const::create(end_time);
-
- duration_value_node = ValueNode_Subtract::create(Time(0));
- duration_value_node->set_link("lhs", end_time_value_node);
- duration_value_node->set_link("rhs", start_time_value_node);
-
- connect_dynamic_param("local_time", start_time_value_node);
- connect_dynamic_param("duration", duration_value_node);
-}
-
-void
-Layer_TimeLoop::set_time(Context context, Time t)const
-{
- Time time = t;
-
- if (!only_for_positive_duration || duration > 0)
- {
- if (duration == 0)
- t = link_time;
- else if (duration > 0)
- {
- t -= local_time;
- t -= floor(t / duration) * duration;
- t = link_time + t;
- }
- else
- {
- t -= local_time;
- t -= floor(t / -duration) * -duration;
- t = link_time - t;
- }
-
- // for compatibility with v0.1 layers; before local_time is reached, take a step back
- if (!symmetrical && time < local_time)
- t -= duration;
- }
-
- context.set_time(t);
-}
-
-Color
-Layer_TimeLoop::get_color(Context context, const Point &pos)const
-{
- return context.get_color(pos);
-}
-
-bool
-Layer_TimeLoop::accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const
-{
- return context.accelerated_render(surface,quality,renddesc,cb);
-}
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