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

/*!	\file renderer_guides.cpp

**	\brief Template File

**

**	$Id$

**

**	\legal

**	Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley

**  Copyright (c) 2011 Nikita Kitaev

**

**	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 "renderer_guides.h"

#include "workarea.h"

#include <etl misc=""></etl>

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

#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_Guides::Renderer_Guides()//:

	//dragging(false)

{

}

Renderer_Guides::~Renderer_Guides()

{

}

bool

Renderer_Guides::get_enabled_vfunc()const

{

	return get_work_area()->get_show_guides();

}

std::list<float>&</float>

Renderer_Guides::get_guide_list_x()

{

	return get_work_area()->get_guide_list_x();

}

std::list<float>&</float>

Renderer_Guides::get_guide_list_y()

{

	return get_work_area()->get_guide_list_y();

}

bool

Renderer_Guides::event_vfunc(GdkEvent* /*event*/)

{

	// TODO : All the guides stuff done in WorkArea::on_drawing_area_event(GdkEvent *event)

	// could be done here for better code maintenance (or not).

	return false;

}

void

Renderer_Guides::render_vfunc(

	const Glib::RefPtr<gdk::window>& drawable,</gdk::window>

	const Gdk::Rectangle& /*expose_area*/

)

{

	assert(get_work_area());

	if(!get_work_area())

		return;

	int drawable_w = drawable->get_width();

	int drawable_h = drawable->get_height();

	Cairo::RefPtr<cairo::context> cr = drawable->create_cairo_context();</cairo::context>

	const synfig::Vector::value_type window_startx(get_work_area()->get_window_tl()[0]);

	const synfig::Vector::value_type window_starty(get_work_area()->get_window_tl()[1]);

	const float pw(get_pw()),ph(get_ph());

	synfig::Color guides_color(get_work_area()->get_guides_color());

	// Draw out the guides

	{

		Duckmatic::GuideList::const_iterator iter;

		cr->save();

		cr->set_line_cap(Cairo::LINE_CAP_BUTT);

		cr->set_line_join(Cairo::LINE_JOIN_MITER);

		cr->set_antialias(Cairo::ANTIALIAS_NONE);

		cr->set_line_width(1.0);

		std::valarray<double> dashes(2);</double>

		dashes[0]=5.0;

		dashes[1]=5.0;

		cr->set_dash(dashes, 0);

		// vertical

		for(iter=get_guide_list_x().begin();iter!=get_guide_list_x().end();++iter)

		{

			const float x((*iter-window_startx)/pw);

			if(iter==get_work_area()->curr_guide)

				cr->set_source_rgb(GDK_COLOR_TO_RGB(GUIDE_COLOR_CURRENT));

			else

				cr->set_source_rgb(guides_color.get_r(),guides_color.get_g(),guides_color.get_b());

			cr->move_to(

				x,

				0

				);

			cr->line_to(

				x,

				drawable_h

			);

			cr->stroke();

		}

		// horizontal

		for(iter=get_guide_list_y().begin();iter!=get_guide_list_y().end();++iter)

		{

			const float y((*iter-window_starty)/ph);

			if(iter==get_work_area()->curr_guide)

				cr->set_source_rgb(GDK_COLOR_TO_RGB(GUIDE_COLOR_CURRENT));

			else

				cr->set_source_rgb(guides_color.get_r(),guides_color.get_g(),guides_color.get_b());

			cr->move_to(

				0,

				y

				);

			cr->line_to(

				drawable_w,

				y

			);

			cr->stroke();

		}

		cr->restore();

	}

}