/* === S Y N F I G ========================================================= */
/*! \file valuedescbake.cpp
** \brief Template File
**
** $Id$
**
** \legal
** ......... ... 2019 Ivan Mahonin
**
** 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/general.h>
#include <synfig/valuenodes/valuenode_const.h>
#include <synfig/valuenodes/valuenode_animated.h>
#include <synfigapp/canvasinterface.h>
#include "valuedescconnect.h"
#include "valuedescbake.h"
#include <synfigapp/localization.h>
#endif
using namespace synfig;
using namespace synfigapp;
using namespace Action;
/* === M A C R O S ========================================================= */
ACTION_INIT_NO_GET_LOCAL_NAME(Action::ValueDescBake);
ACTION_SET_NAME(Action::ValueDescBake,"ValueDescBake");
ACTION_SET_LOCAL_NAME(Action::ValueDescBake,N_("Bake"));
ACTION_SET_TASK(Action::ValueDescBake,"convert");
ACTION_SET_CATEGORY(Action::ValueDescBake,Action::CATEGORY_VALUEDESC);
ACTION_SET_PRIORITY(Action::ValueDescBake,0);
ACTION_SET_VERSION(Action::ValueDescBake,"0.0");
ACTION_SET_CVS_ID(Action::ValueDescBake,"$Id$");
/* === G L O B A L S ======================================================= */
/* === P R O C E D U R E S ================================================= */
/* === M E T H O D S ======================================================= */
Action::ValueDescBake::ValueDescBake()
{ }
synfig::String
Action::ValueDescBake::get_local_name()const
{ return _("Bake"); }
Action::ParamVocab
Action::ValueDescBake::get_param_vocab()
{
ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
ret.push_back(ParamDesc("value_desc",Param::TYPE_VALUEDESC)
.set_local_name(_("ValueDesc"))
);
return ret;
}
bool
Action::ValueDescBake::is_candidate(const ParamList &x)
{
if (!candidate_check(get_param_vocab(), x))
return false;
const ValueDesc value_desc = x.find("value_desc")->second.get_value_desc();
if (!value_desc && !value_desc.is_value_node())
return false;
ValueNode::Handle value_node = value_desc.get_value_node();
if (!value_node)
return false;
if (ValueNode_Const::Handle::cast_dynamic(value_node))
return false;
if (!is_type_supported(value_node->get_type()))
return false;
return true;
}
bool
Action::ValueDescBake::set_param(const synfig::String& name, const Action::Param ¶m)
{
if(name=="value_desc" && param.get_type()==Param::TYPE_VALUEDESC)
{
value_desc = param.get_value_desc();
return true;
}
return Action::CanvasSpecific::set_param(name, param);
}
bool
Action::ValueDescBake::is_ready()const
{
if (!value_desc)
return false;
return Action::CanvasSpecific::is_ready();
}
void
Action::ValueDescBake::prepare()
{
clear();
const RendDesc &renddesc = get_canvas()->rend_desc();
ValueNode::Handle value_node = value_desc.get_value_node();
ValueNode::Handle baked = bake(
value_node,
renddesc.get_time_start(),
renddesc.get_time_end(),
renddesc.get_frame_rate() );
if (!baked)
throw Error(_("Unable to bake"));
Action::Handle action(ValueDescConnect::create());
action->set_param("canvas", get_canvas());
action->set_param("canvas_interface", get_canvas_interface());
action->set_param("src", baked);
action->set_param("dest", value_desc);
assert(action->is_ready());
if(!action->is_ready())
throw Error(Error::TYPE_NOTREADY);
add_action_front(action);
}
bool
Action::ValueDescBake::is_type_supported(synfig::Type &type)
{
try { ValueNode_Animated::create(type); }
catch(...) { return false; }
return true;
}
ValueNode::Handle
Action::ValueDescBake::bake(
const ValueNode::Handle &value_node,
Time begin,
Time end,
float fps )
{
if (!value_node)
return ValueNode::Handle();
if (!approximate_greater_lp(fps, 0.f))
fps = end - begin;
if (end < begin) {
end = begin;
fps = 1;
}
double step = 1/(double)fps;
Type &type = value_node->get_type();
ValueNode_Animated::Handle animated;
try {
animated = ValueNode_Animated::create(type);
} catch(...) {
error("ValueDescBake: Cannot create ValueNode_Animated, may be unsopported value type.");
return ValueNode::Handle();
}
Interpolation interpolation = INTERPOLATION_CONSTANT;
if ( type == type_time
|| type == type_real
|| type == type_angle
|| type == type_vector
|| type == type_color
|| type == type_gradient )
interpolation = INTERPOLATION_CLAMPED;
ValueBase prev_value;
int index = 0;
while(true) {
Time t = begin + step*index++;
if (index > 10000000) {
error("ValueDescBake: Reached limit of iterations.");
return ValueNode::Handle();
}
if (approximate_greater_lp((double)t, (double)end))
break;
if (t > end) // set exact end, for the last iteration
t = end;
ValueBase value = (*value_node)(t);
if (prev_value != value) {
Waypoint &wp = *animated->new_waypoint(t, value);
wp.set_before(interpolation);
wp.set_after(interpolation);
prev_value = value;
}
if (t == end) // stop the cycle (see upper comment)
break;
}
assert(!animated->waypoint_list().empty());
if (animated->waypoint_list().size() == 1)
return ValueNode_Const::create(prev_value);
return animated;
}