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

/*!	\file canvasremove.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 "canvasremove.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::CanvasRemove);

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

ACTION_SET_LOCAL_NAME(Action::CanvasRemove,N_("Remove Canvas"));

ACTION_SET_TASK(Action::CanvasRemove,"remove");

ACTION_SET_CATEGORY(Action::CanvasRemove,Action::CATEGORY_CANVAS);

ACTION_SET_PRIORITY(Action::CanvasRemove,0);

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

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

/* === 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::CanvasRemove::CanvasRemove()

{

}

Action::ParamVocab

Action::CanvasRemove::get_param_vocab()

{

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

	return ret;

}

bool

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

{

	if(candidate_check(get_param_vocab(),x))

	{

		Canvas::Handle canvas=x.find("canvas")->second.get_canvas();

		assert(canvas);

		// We cannot remove the root canvas.

		if(canvas->is_root())

			return false;

		return true;

	}

	return false;

}

bool

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

{

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

}

bool

Action::CanvasRemove::is_ready()const

{

	return Action::CanvasSpecific::is_ready();

}

void

Action::CanvasRemove::perform()

{

	// We cannot remove the root canvas.

	if(get_canvas()->is_root())

		throw Error(_("You cannot remove the root canvas!"));

	if(get_canvas()->is_inline())

		throw Error(_("You cannot remove a canvas from a Group!"));

	parent_canvas=get_canvas()->parent();

	canvas_id=get_canvas()->get_id();

	assert(parent_canvas);

	parent_canvas->remove_child_canvas(get_canvas());

	if(get_canvas_interface())

	{

		get_canvas_interface()->signal_canvas_removed()(get_canvas());

	}

	else synfig::warning("CanvasInterface not set on action");

}

void

Action::CanvasRemove::undo()

{

	parent_canvas->add_child_canvas(get_canvas(), canvas_id);

	if(get_canvas_interface())

	{

		get_canvas_interface()->signal_canvas_added()(get_canvas());

	}

	else synfig::warning("CanvasInterface not set on action");

}