/***************************************************************************
 *   Copyright (C) 2005 by David Saxton                                    *
 *   david@bluehaze.org                                                    *
 *                                                                         *
 *   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.                                   *
 ***************************************************************************/

#ifndef MATRIXDISPLAY_H
#define MATRIXDISPLAY_H

#include <component.h>
#include <q3valuevector.h>

const unsigned max_md_width = 100;
const unsigned max_md_height = 20;

/**
@author David Saxton
*/
class MatrixDisplay : public Component
{
	public:
		MatrixDisplay( ICNDocument *icnDocument, bool newItem, const char *id = 0L );
		~MatrixDisplay();
	
		static Item* construct( ItemDocument *itemDocument, bool newItem, const char *id );
		static LibraryItem *libraryItem();
	
		virtual void stepNonLogic();
		virtual bool doesStepNonLogic() const { return true; }
		
	protected:
		virtual void drawShape( QPainter &p );
		virtual void dataChanged();
		void initPins( unsigned numRows, unsigned numCols );
		QString colPinID( int col ) const;
		QString rowPinID( int row ) const;
		
		
		Q3ValueVector< Q3ValueVector<double> > m_avgBrightness;
		Q3ValueVector< Q3ValueVector<unsigned> > m_lastBrightness;
		Q3ValueVector< Q3ValueVector<Diode*> > m_pDiodes;
		
		ECNode * m_pRowNodes[max_md_height];
		ECNode * m_pColNodes[max_md_width];
		
		double m_lastUpdatePeriod;
		
		double m_r, m_g, m_b;
		bool m_bRowCathode;
		
		unsigned m_numRows;
		unsigned m_numCols;
};

#endif
