/***************************************************************************
 *   Copyright (C) 2004 by Christoph Freundl                               *
 *   Christoph.Freundl@informatik.uni-erlangen.de                          *
 *                                                                         *
 *   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; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/

#ifndef SDLWIDGETS_TEXTFIELD_H
#define SDLWIDGETS_TEXTFIELD_H

#include <string>
#include <SDL.h>
#include <SDL_ttf.h>

#include "widget.h"
#include "action.h"
#include "focusable.h"
#include "rootcontainer.h"
#include "backgroundwidget.h"

namespace SDLwidgets {

class TextField : public WidgetLeaf, public ActionWidget, public Focusable {
public:
	enum Action {
		EDITING_FINISHED,
		EDITING_CANCELLED
	};
	
private:
	TTF_Font* _font;
	SDL_Surface* _rendered_text;
	std::string _text;
	int _width, _height;
	BackgroundWidget* _background;
	unsigned int _cursor_position;
	Uint16 _cursor_x;
	bool _has_focus;
	SDL_mutex* m_mutex;
	
public:
	TextField( int width, int height );
	TextField( std::string font_name, int font_size, std::string text );
	TextField( std::string text, int width = -1, int height = -1 );
	virtual ~TextField();
	void setFont( std::string fontName, int fontSize );
	void setText( std::string text ) {
		_text = text;
		renderText();
		_cursor_position = _text.length();
		updateCursorPosition();
	}
	std::string& getText() { return _text; }
	void clear() {
		_text.erase();
		renderText();
		_cursor_position = 0;
		updateCursorPosition();
	}
	virtual void setWidth( const Uint16 width ) {
		_background->setWidth( width );
		Widget::setWidth( width );
	}
	virtual int getWidth() const { return _width; }
	virtual void setHeight( const Uint16 height ) {
		_background->setHeight( height );
		Widget::setHeight( height );
	}
	virtual int getHeight() const { return _height; }
	void setColor( const SDL_Color& color );
	virtual void draw( SDL_Surface* surface );
	virtual bool handleEvent( SDL_Event* event );
	virtual void focusGained();
	virtual void focusLost();
private:
	void renderText();
	void updateCursorPosition();
};

}

#endif // SDLWIDGETS_TEXTFIELD_H