/*  ColorHistory.h
 *
 *  Copyright (C) 2014-2016  Jim Evins <evins@snaught.com>
 *
 *  This file is part of gLabels-qt.
 *
 *  gLabels-qt 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 3 of the License, or
 *  (at your option) any later version.
 *
 *  gLabels-qt 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 gLabels-qt.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef ColorHistory_h
#define ColorHistory_h


#include <QColor>
#include <QObject>


namespace glabels
{

	///
	/// Color History
	///
	class ColorHistory : public QObject
	{
		Q_OBJECT

	public:
		static const int MAX_COLORS = 9;

		/////////////////////////////////
		// Life Cycle
		/////////////////////////////////
	private:
		ColorHistory();

	public:
		static ColorHistory* instance();


		/////////////////////////////////
		// Signals
		/////////////////////////////////
	signals:
		void changed();


		/////////////////////////////////
		// Public Methods
		/////////////////////////////////
	public:
		void   addColor( const QColor &color );
		QList<QColor> getColors();


		/////////////////////////////////
		// Private Methods
		/////////////////////////////////
	private:
		QList<QColor> readColorList();
		void writeColorList( const QList<QColor>& colorList );


		/////////////////////////////////
		// Private Members
		/////////////////////////////////
	private:

	};

}


#endif // ColorHistory_h