/******************************** LICENSE ********************************

 Copyright 2007 European Centre for Medium-Range Weather Forecasts (ECMWF)

 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at 

    http://www.apache.org/licenses/LICENSE-2.0

 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.

 ******************************** LICENSE ********************************/

/*! \file LabelPlotting.h
    \brief Definition of the Template class LabelPlotting.
    
    Magics Team - ECMWF 2004
    
    Started: Mon 2-Feb-2004
    
    Changes:
    
*/

#ifndef LabelPlotting_H
#define LabelPlotting_H

#include "magics.h"

#include "SceneVisitor.h"
#include "LabelPlottingAttributes.h"
#include "UserPoint.h"
#include "Text.h"
#include "Symbol.h"
#include "VectorOfPointers.h"
#include "Transformation.h"


namespace magics {

class NoGridPlotting;



class NoLabelPlotting {

public:
	NoLabelPlotting() {}
	virtual ~NoLabelPlotting() {}
    
    virtual void set(const XmlNode&) {}
    virtual void set(const map<string, string>&) {}
    virtual void toxml(ostream&, int = 0) const {} 
    virtual bool accept(const string&) { return false; }
    virtual NoLabelPlotting* clone() const { return new NoLabelPlotting(); }
    virtual void operator()(DrawingVisitor&) {}
    virtual void prepare(NoGridPlotting&) {}
    
    virtual void operator()(LeftAxisVisitor&) {}
    virtual void operator()(RightAxisVisitor&) {}
    virtual void operator()(BottomAxisVisitor&) {}
    virtual void operator()(TopAxisVisitor&) {}
    
    virtual void layer(BasicGraphicsObjectContainer*) {}
     virtual void label(Transformation&);
protected:
     //! Method to print string about this class on to a stream of type ostream (virtual).
	 virtual void print(ostream& out) const { out << "NoLabelPlotting\n"; } 

private:
    //! Copy constructor - No copy allowed
	NoLabelPlotting(const NoLabelPlotting&);
    //! Overloaded << operator to copy - No copy allowed
	NoLabelPlotting& operator=(const NoLabelPlotting&);

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

};

template <>
class MagTranslator<string, NoLabelPlotting> { 
public:
	NoLabelPlotting* operator()(const string& val )
	{
		return SimpleObjectMaker<NoLabelPlotting>::create(val);
	}     

	NoLabelPlotting* magics(const string& param)
	{
		string val;
		ParameterManager::get(param, val);
		return (*this)(val);
	}
};

class LabelPlotting: public NoLabelPlotting, public LabelPlottingAttributes {

public:
	LabelPlotting();
	virtual ~LabelPlotting();
	void prepare(NoGridPlotting& grid);
	
	virtual LabelPlotting* clone() const
	{
		LabelPlotting* object = new LabelPlotting();
		object->copy(*this);
		return object;
	}
	virtual void set(const XmlNode& node) { LabelPlottingAttributes::set(node); }
    virtual void set(const map<string, string>& map) { LabelPlottingAttributes::set(map);}
	
	bool accept(const string& node) { return LabelPlottingAttributes::accept(node); }

	template <class V>
	void label(V& visitor) {
		if (!layer_) layer_ = &visitor.layout();
		visitor.transformation().labels(*this, visitor);
		layer_ = 0;
	}
	void operator()(DrawingVisitor& visitor)       { label(visitor); }
	void operator()(LeftAxisVisitor& visitor)       { if ( left_ ) label(visitor); }
	void operator()(RightAxisVisitor& visitor)     { if ( right_ ) label(visitor); }
	void operator()(BottomAxisVisitor& visitor)  { if ( bottom_ ) label(visitor); }
	void operator()(TopAxisVisitor& visitor)        { if (top_) label(visitor); }
	void layer(BasicGraphicsObjectContainer* layer) { layer_ = layer; }
	void label(Transformation&);
	void add(Text* text) const
	{
		MagFont font(font_, font_style_, height_);
		font.colour(*colour_);
		text->setFont(font);
		text->setBlanking(blanking_);
		layer_->push_back(text);
	}

	const vector<double>& longitudes() const { return longitudes_; }
	const vector<double>& latitudes()  const { return latitudes_; }

protected:
	//! Method to print string about this class on to a stream of type ostream (virtual).
	virtual void print(ostream&) const;  
	vector<double> latitudes_;
	vector<double> longitudes_;
	BasicGraphicsObjectContainer* layer_;
private:
	//! Copy constructor - No copy allowed
	LabelPlotting(const LabelPlotting&);
	//! Overloaded << operator to copy - No copy allowed
	LabelPlotting& operator=(const LabelPlotting&);

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

};


} // namespace magics
#endif
