/*
 
* 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:
 
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* Redistributions of source code must retain the above copyright
 
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notice, this list of conditions and the following disclaimer.
 
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* Redistributions in binary form must reproduce the above copyright
 
*
       
notice, this list of conditions and the following disclaimer in the
 
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documentation and/or other materials provided with the distribution.
 
*
     
* Neither the name of Metron, Inc. nor the
 
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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
 
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package com.metsci.glimpse.axis;

import java.util.HashMap;
import java.util.Map;

import com.metsci.glimpse.axis.listener.AxisListener1D;
import com.metsci.glimpse.axis.listener.AxisListener2D;
import com.metsci.glimpse.context.GlimpseBounds;
import com.metsci.glimpse.context.GlimpseTargetStack;

/**
 
* A delegate class holding two orthogonal one dimensional axes. Contains convenience methods
 
* for accessing the individual "x" and "y" {@link Axis1D}.</p>
 
*
 
* @author ulman
 
* @see com.metsci.glimpse.axis.Axis1D
 
*/

public class Axis2D
{
    
protected Axis1D x;
    
protected Axis1D y;

    
protected Map<AxisListener2D,AxisListener1D> listeners;

    
public Axis2D( final Axis1D x, final Axis1D y )
    
{
        
this.x = x;
        
this.y = y;

        
this.listeners = new HashMap<>( );
    
}

    
public Axis2D( )
    
{
        
this( new Axis1D( ), new Axis1D( ) );
    
}

    
@Override
    
public Axis2D clone( )
    
{
        
Axis1D newX = x.clone( );
        
Axis1D newY = y.clone( );

        
if ( x.getLockedAspectAxis( ) == y )
        
{
            
newX.lockAspectRatio( newY, x.getLockedAspectRatio( ) );
        
}

        
if ( y.getLockedAspectAxis( ) == x )
        
{
            
newY.lockAspectRatio( newX, y.getLockedAspectRatio( ) );
        
}

        
return new Axis2D( newX, newY );
    
}

    
// synchronize to maintain thread safe access to listeners map
    
public synchronized void removeAxisListener( final AxisListener2D listener )
    
{
        
AxisListener1D listener1D = listeners.remove( listener );
        
x.removeAxisListener( listener1D );
        
y.removeAxisListener( listener1D );
    
}

    
// synchronize to maintain thread safe access to listeners map
    
public synchronized void addAxisListener( final AxisListener2D listener )
    
{
        
AxisListener1D listener1D = new AxisListener1D( )
        
{
            
@Override
            
public void axisUpdated( Axis1D axis )
            
{
                
listener.axisUpdated( Axis2D.this );
            
}
        
};

        
listeners.put( listener, listener1D );
        
x.addAxisListener( listener1D );
        
y.addAxisListener( listener1D );
    
}

    
public void lockAspectRatioXY( double x_to_y_ratio )
    
{
        
x.lockAspectRatio( y, x_to_y_ratio );
        
y.lockAspectRatio( x, 1.0 / x_to_y_ratio );

        
validate( );
    
}

    
public void validate( )
    
{
        
applyConstraints( );
        
updateLinkedAxes( );
    
}

    
public void applyConstraints( )
    
{
        
x.applyConstraints( );
        
y.applyConstraints( );
    
}

    
public void updateLinkedAxes( )
    
{
        
x.updateLinkedAxes( y );
        
y.updateLinkedAxes( );
    
}

    
public void unlockAspectRatioXY( )
    
{
        
x.unlockAspectRatio( );
        
y.unlockAspectRatio( );
    
}

    
public void centerOnPoint( double newCenterX, double newCenterY )
    
{
        
double minX = getMinX( );
        
double maxX = getMaxX( );
        
double minY = getMinY( );
        
double maxY = getMaxY( );

        
double centerX = ( maxX - minX ) / 2 + minX;
        
double centerY = ( maxY - minY ) / 2 + minY;

        
double transX = newCenterX - centerX;
        
double transY = newCenterY - centerY;

        
x.setMin( minX + transX );
        
x.setMax( maxX + transX );

        
y.setMin( minY + transY );
        
y.setMax( maxY + transY );

        
x.validate( );
        
y.validate( );
    
}

    
public void set( double minX, double maxX, double minY, double maxY )
    
{
        
x.setMin( minX );
        
x.setMax( maxX );
        
y.setMin( minY );
        
y.setMax( maxY );
    
}

    
public void lock( )
    
{
        
x.lock( );
        
y.lock( );
    
}

    
public void unlock( )
    
{
        
x.unlock( );
        
y.unlock( );
    
}

    
public double getMinX( )
    
{
        
return x.getMin( );
    
}

    
public double getMaxX( )
    
{
        
return x.getMax( );
    
}

    
public double getMinY( )
    
{
        
return y.getMin( );
    
}

    
public double getMaxY( )
    
{
        
return y.getMax( );
    
}

    
public Axis1D getAxisX( )
    
{
        
return x;
    
}

    
public Axis1D getAxisY( )
    
{
        
return y;
    
}

    
public void setParent( Axis2D parent )
    
{
        
if ( x != null ) x.setParent( parent == null ? null : parent.getAxisX( ) );
        
if ( y != null ) y.setParent( parent == null ? null : parent.getAxisY( ) );
    
}

    
public void setLinkChildren( boolean link )
    
{
        
if ( x != null ) x.setLinkChildren( link );
        
if ( y != null ) y.setLinkChildren( link );
    
}

    
public void setSizePixels( GlimpseTargetStack stack )
    
{
        
setSizePixels( stack.getBounds( ) );
    
}

    
public void setSizePixels( GlimpseBounds bounds )
    
{
        
if ( x != null ) x.setSizePixels( bounds.getWidth( ), false );
        
if ( y != null ) y.setSizePixels( bounds.getHeight( ), false );
        
if ( x != null ) x.setInitialized( );
        
if ( y != null ) y.setInitialized( );
    
}

    
@Override
    
public String toString( )
    
{
        
return String.format( "[%s %s]", x, y );
    
}
}