/*
 
* Copyright (c) 2016, Metron, Inc.
 
* All rights reserved.
 
*
 
* Redistribution and use in source and binary forms, with or without
 
* modification, are permitted provided that the following conditions are met:
 
*
     
* Redistributions of source code must retain the above copyright
 
*
       
notice, this list of conditions and the following disclaimer.
 
*
     
* Redistributions in binary form must reproduce the above copyright
 
*
       
notice, this list of conditions and the following disclaimer in the
 
*
       
documentation and/or other materials provided with the distribution.
 
*
     
* Neither the name of Metron, Inc. nor the
 
*
       
names of its contributors may be used to endorse or promote products
 
*
       
derived from this software without specific prior written permission.
 
*
 
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 
* DISCLAIMED. IN NO EVENT SHALL METRON, INC. BE LIABLE FOR ANY
 
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 
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package com.metsci.glimpse.axis.factory;

import java.util.ArrayList;
import java.util.List;

import com.metsci.glimpse.axis.Axis2D;
import com.metsci.glimpse.context.GlimpseTargetStack;
import com.metsci.glimpse.util.Pair;

/**
 
* An axis factory which acts as a different AxisFactory depending on what
 
* context (defined by a GlimpseTargetStack) it is used under.
 
*
 
* @author ulman
 
*
 
*
 
*
 
*
 
*/

public abstract class ConditionalAxisFactory2D implements AxisFactory2D
{
    
protected List<Pair<GlimpseTargetStack, AxisFactory2D>> delegateList;
    
protected AxisFactory2D defaultFactory;

    
public ConditionalAxisFactory2D( )
    
{
        
delegateList = new ArrayList<Pair<GlimpseTargetStack, AxisFactory2D>>( );
        
defaultFactory = new DefaultAxisFactory2D( );
    
}

    
public ConditionalAxisFactory2D( GlimpseTargetStack stack, AxisFactory2D factory )
    
{
        
this( );

        
addFactory( stack, factory );
    
}

    
public void addFactory( GlimpseTargetStack stack, AxisFactory2D factory )
    
{
        
delegateList.add( new Pair<GlimpseTargetStack, AxisFactory2D>( stack, factory ) );
    
}

    
@Override
    
public Axis2D newAxis( GlimpseTargetStack stack, Axis2D axis )
    
{
        
return getAxisFactory( stack ).newAxis( stack, axis );
    
}

    
@Override
    
public AxisFactory1D getAxisFactoryX( GlimpseTargetStack stack )
    
{
        
return getAxisFactory( stack ).getAxisFactoryX( stack );
    
}

    
@Override
    
public AxisFactory1D getAxisFactoryY( GlimpseTargetStack stack )
    
{
        
return getAxisFactory( stack ).getAxisFactoryY( stack );
    
}

    
protected AxisFactory2D getAxisFactory( GlimpseTargetStack stack )
    
{
        
for ( Pair<GlimpseTargetStack, AxisFactory2D> pair : delegateList )
        
{
            
GlimpseTargetStack candidateStack = pair.first( );
            
AxisFactory2D candidateFactory = pair.second( );

            
if ( isConditionMet( stack, candidateStack ) )
            
{
                
return candidateFactory;
            
}
        
}

        
return defaultFactory;
    
}

    
protected abstract boolean isConditionMet( GlimpseTargetStack stack, GlimpseTargetStack candidate );

}