/* === S Y N F I G ========================================================= */

/*!	\file valuenodeconstset.cpp

**	\brief Template File

**

**	$Id$

**

**	\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></config.h>

#endif

#include <synfig general.h=""></synfig>

#include "valuenodeconstset.h"

#include <synfigapp canvasinterface.h=""></synfigapp>

#include <synfigapp localization.h=""></synfigapp>

#endif

using namespace std;

using namespace etl;

using namespace synfig;

using namespace synfigapp;

using namespace Action;

/* === M A C R O S ========================================================= */

ACTION_INIT(Action::ValueNodeConstSet);

ACTION_SET_NAME(Action::ValueNodeConstSet,"ValueNodeConstSet");

ACTION_SET_LOCAL_NAME(Action::ValueNodeConstSet,N_("Set ValueNode_Const"));

ACTION_SET_TASK(Action::ValueNodeConstSet,"set");

ACTION_SET_CATEGORY(Action::ValueNodeConstSet,Action::CATEGORY_VALUENODE);

ACTION_SET_PRIORITY(Action::ValueNodeConstSet,0);

ACTION_SET_VERSION(Action::ValueNodeConstSet,"0.0");

ACTION_SET_CVS_ID(Action::ValueNodeConstSet,"$Id$");

/* === 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::ValueNodeConstSet::ValueNodeConstSet()

{

	set_dirty(true);

}

Action::ParamVocab

Action::ValueNodeConstSet::get_param_vocab()

{

	ParamVocab ret(Action::CanvasSpecific::get_param_vocab());

	ret.push_back(ParamDesc("value_node",Param::TYPE_VALUENODE)

		.set_local_name(_("ValueNode_Const"))

	);

	ret.push_back(ParamDesc("new_value",Param::TYPE_VALUE)

		.set_local_name(_("ValueBase"))

	);

	return ret;

}

bool

Action::ValueNodeConstSet::is_candidate(const ParamList &x)

{

	if(candidate_check(get_param_vocab(),x))

	{

		if(ValueNode_Const::Handle::cast_dynamic(x.find("value_node")->second.get_value_node()))

			return true;

	}

	return false;

}

bool

Action::ValueNodeConstSet::set_param(const synfig::String& name, const Action::Param ¶m)

{

	if(name=="value_node" && param.get_type()==Param::TYPE_VALUENODE)

	{

		value_node=ValueNode_Const::Handle::cast_dynamic(param.get_value_node());

		return (bool)value_node;

	}

	if(name=="new_value" && param.get_type()==Param::TYPE_VALUE)

	{

		new_value=param.get_value();

		return true;

	}

	return Action::CanvasSpecific::set_param(name,param);

}

bool

Action::ValueNodeConstSet::is_ready()const

{

	if(!value_node || !new_value.is_valid())

		return false;

	return Action::CanvasSpecific::is_ready();

}

void

Action::ValueNodeConstSet::perform()

{

	//set_dirty(true);

	old_value=value_node->get_value();

	// We shouldn't change the parameters properties when change its value

	new_value.copy_properties_of(old_value);

	value_node->set_value(new_value);

	// Signal that a layer has been inserted

	/*if(get_canvas_interface())

	{

		get_canvas_interface()->signal_value_node_changed()(value_node);

	}*/

}

void

Action::ValueNodeConstSet::undo()

{

	//set_dirty(true);

	value_node->set_value(old_value);

	// Signal that a layer has been inserted

	/*if(get_canvas_interface())

	{

		get_canvas_interface()->signal_value_node_changed()(value_node);

	}*/

}