/*
 * UltraStar Deluxe - Karaoke Game
 *
 * UltraStar Deluxe is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program 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 program 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; see the file COPYING. If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 *
 */

#ifndef TEXT_HPP
#define TEXT_HPP

#include <string>
#include <FTGL/ftgl.h>
#include <boost/thread/shared_mutex.hpp>
#include <log4cpp/Category.hh>

#include "drawable_control.hpp"
#include "container.hpp"
#include "utils/point.hpp"
#include "vertical_text_alignment.hpp"

namespace usdx
{
	class Text : public DrawableControl
	{
	private:
		static log4cpp::Category& log;

		/**
		 * text that should be displayed
		 */
		std::string text;

		/**
		 * If true, the text may overlap the rectangle of the control, otherwise
		 * it will be cut off, if the text is larger than the rectangle.
		 */
		bool auto_size;

		/**
		 * If true, and the text to long and would exceeds the bounds,
		 * the font size is shirked until the text fit to the
		 * bounds. (Works only if auto size is false.)
		 */
		bool stretch;

		/**
		 * Offset of the baseline of the text to the top left corner of the
		 * control.
		 */
		Point<int> offset;

		FTFont *font;
		const VerticalTextAlignment *valign;

		mutable boost::shared_mutex font_mutex;

		/**
		 * This function is used to recalculate the offset of the drawn
		 * text. It should be called every time the text or the font size is
		 * changed.
		 *
		 * @see: offset
		 */
		void realign(void);

		/**
		 * Helper to create a Rectangle<int> object out of an FTBBox. This is
		 * used for converting the BBox from ftgl to the common internal format.
		 */
		static Rectangle<int> makeRect(const FTBBox& bbox);


	protected:
		virtual void draw(void);

	public:
		Text(Container*, const std::string = "", const unsigned int = 60,
			 const VerticalTextAlignment* = new VerticalTextAlignmentTop());

		virtual ~Text();

		void set_font_size(const unsigned int value);
		unsigned int get_font_size(void) const;

		void set_text(const std::string value);
		std::string get_text(void) const;

		virtual void set_size(const Dimension<int>& size);
		virtual void set_size(int width, int height);

		void set_auto_size(const bool value);
		bool get_auto_size(void) const;
	};

}

#endif