/* === S Y N F I G ========================================================= */
/*!	\file renderer_bbox.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>
#endif

#include "renderer_bbox.h"
#include "workarea.h"
#include "canvasview.h"
#include "general.h"

#endif

/* === U S I N G =========================================================== */

using namespace std;
using namespace etl;
using namespace synfig;
using namespace studio;

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

/* === G L O B A L S ======================================================= */

/* === P R O C E D U R E S ================================================= */

/* === M E T H O D S ======================================================= */

Renderer_BBox::Renderer_BBox()
{
}

Renderer_BBox::~Renderer_BBox()
{
}

const synfig::Rect&
Renderer_BBox::get_bbox()
{
	return get_work_area()->get_canvas_view()->get_bbox();
}

void
Renderer_BBox::render_vfunc(
	const Glib::RefPtr<Gdk::Drawable>& drawable,
	const Gdk::Rectangle& /*expose_area*/
)
{
	assert(get_work_area());
	if(!get_work_area())
		return;

//	const synfig::RendDesc &rend_desc(get_work_area()->get_canvas()->rend_desc());

	const synfig::Vector focus_point(get_work_area()->get_focus_point());

//	std::vector< std::pair<Glib::RefPtr<Gdk::Pixbuf>,int> >& tile_book(get_tile_book());

	int drawable_w,drawable_h;
	drawable->get_size(drawable_w,drawable_h);

	// Calculate the window coordinates of the top-left
	// corner of the canvas.
//	const synfig::Vector::value_type
//		x(focus_point[0]/get_pw()+drawable_w/2-get_w()/2),
//		y(focus_point[1]/get_ph()+drawable_h/2-get_h()/2);

	/*const synfig::Vector::value_type window_startx(window_tl[0]);
	const synfig::Vector::value_type window_endx(window_br[0]);
	const synfig::Vector::value_type window_starty(window_tl[1]);
	const synfig::Vector::value_type window_endy(window_br[1]);
	*/
//	const int
//		tile_w(get_work_area()->get_tile_w()),
//		tile_h(get_work_area()->get_tile_h());

//	const int
//		w(get_w()),
//		h(get_h());

	Glib::RefPtr<Gdk::GC> gc(Gdk::GC::create(drawable));

	//const synfig::Vector grid_size(get_grid_size());

	const synfig::Vector::value_type window_startx(get_work_area()->get_window_tl()[0]);
//	const synfig::Vector::value_type window_endx(get_work_area()->get_window_br()[0]);
	const synfig::Vector::value_type window_starty(get_work_area()->get_window_tl()[1]);
//	const synfig::Vector::value_type window_endy(get_work_area()->get_window_br()[1]);
	const float pw(get_pw()),ph(get_ph());

	const synfig::Point curr_point(get_bbox().get_min());
	const synfig::Point drag_point(get_bbox().get_max());
	if(get_bbox().area()<10000000000000000.0)
	{
		gc->set_function(Gdk::INVERT);
		gc->set_rgb_fg_color(Gdk::Color("#FFFFFF"));
		//gc->set_line_attributes(1,Gdk::LINE_ON_OFF_DASH,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
		gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);

		Point tl(std::min(drag_point[0],curr_point[0]),std::min(drag_point[1],curr_point[1]));
		Point br(std::max(drag_point[0],curr_point[0]),std::max(drag_point[1],curr_point[1]));

		tl[0]=(tl[0]-window_startx)/pw;
		tl[1]=(tl[1]-window_starty)/ph;
		br[0]=(br[0]-window_startx)/pw;
		br[1]=(br[1]-window_starty)/ph;
		if(tl[0]>br[0])
			swap(tl[0],br[0]);
		if(tl[1]>br[1])
			swap(tl[1],br[1]);

		drawable->draw_rectangle(gc,false,
			round_to_int(tl[0]),
			round_to_int(tl[1]),
			round_to_int(br[0]-tl[0]),
			round_to_int(br[1]-tl[1])
		);
	}
}