/*
 * (C) Copyright 1996-2016 ECMWF.
 * 
 * This software is licensed under the terms of the Apache Licence Version 2.0
 * which can be obtained at http://www.apache.org/licenses/LICENSE-2.0. 
 * In applying this licence, ECMWF does not waive the privileges and immunities 
 * granted to it by virtue of its status as an intergovernmental organisation nor
 * does it submit to any jurisdiction.
 */

/*! \file ColourTable.h
    \brief Definition of the Template class ColourTable.
    
    Magics Team - ECMWF 2005
    
    Started: Wed 6-Apr-2005
    
    Changes:
    
*/

#ifndef ColourTable_H
#define ColourTable_H

#include "magics.h"
#include "Colour.h"


namespace magics {
	
	
class ColourTableEntry 
{
public:
	ColourTableEntry(const Colour& colour) : 
		min_(INT_MAX), max_(INT_MIN), colour_(colour) {}
	~ColourTableEntry() {}
	//void visit(LegendEntryList&) const;
	void value(double val) { 
		if ( min_ > val ) min_ = val; 
		if ( val > max_ ) max_ = val;		
	}
	
	const Colour& colour() const { return colour_; }
	
	double red()   const { return colour_.red(); }
	double blue()  const { return colour_.blue(); }
	double green() const { return colour_.green(); }
	double alpha() const { return colour_.alpha(); }

	bool operator==(const string& other) const {
	   return colour_ == other;
	}
	

protected:
	double min_;
	double max_; 
	Colour colour_;
	void print(ostream&) const; 
	friend ostream& operator<<(ostream& s,const ColourTableEntry& p)
		{ p.print(s); return s; }
};

class ColourTable : public magvector<ColourTableEntry> {

public:
    typedef magvector<ColourTableEntry>::const_iterator ColourIterator;
	ColourTable();
	virtual ~ColourTable();
    virtual void prepare();
    
    //void visit(LegendEntryList&) const;
    void push_pack(const Colour& colour) 
   		{ push_back(ColourTableEntry(colour)); }
protected:
     //! Method to print string about this class on to a stream of type ostream (virtual).
	 virtual void print(ostream&) const; 

private:
   

// -- Friends
    //! Overloaded << operator to call print().
	friend ostream& operator<<(ostream& s,const ColourTable& p)
		{ p.print(s); return s; }

};

} // namespace magics
#endif
