package com.algomagic.atn;

import att.grappa.*;

public class ClusterUpdate extends AbstractUpdate implements Update {
    private int _cluster;
    private boolean _start;
    private boolean _local;

    public ClusterUpdate( int cluster, boolean start, boolean local, int side ) {
	_cluster = cluster;
	_start = start;
	_local = local;
	_side = side;
    }

    public int initialize( VisualizationPanel visPanel ) {
// 	Graph graph = visPanel.getGraph( );
//  	Subgraph sg = graph.findSubgraphByName( _cluster );
//  	if( sg == null ) {
//  	    new Subgraph( graph, _cluster );
//  	}

	return 3;
    }

    public boolean apply( VisualizationPanel visPanel ) {

// 	Subgraph sg = visPanel.getGraph( ).findSubgraphByName( _cluster );
// 	if( sg == null ) {
// 	    return;
// 	}

	
// 	Subgraph current = visPanel.getCurrentCluster( );
// 	if( current != null && _start ) {
// 	    hide( current );
// 	}

// 	visPanel.setCurrentCluster( sg );
	if( _start && _local ) {
// 	    System.out.println( "raising local tab" );
	    visPanel.setRaised( _local );

	    visPanel.setLocal( true );
	} else {
	    visPanel.setLocal( false );
	}


// 	if( _start && _local ) {
// 	    hide( sg );
// 	} 
	
// 	if( _start && !_local ) {
// 	    show( sg );
// 	} 

// 	if( !_start ) {
// 	    show( sg );
// 	}

	return true;

    }


    public void undo( VisualizationPanel visPanel ) {
	if( _start && _local ) {
	    visPanel.setLocal( false );
	} else if( !_start && _local ) {
	    visPanel.setLocal( true );
	} else if( _start && !_local ) {
	    visPanel.setLocal( true );
	} else {
	    visPanel.setLocal( false );
	}

    }



//     private void show( Subgraph sg ) {
// 	sg.setAttribute( "style", "solid" );
// 	sg.setAttribute( "color", "black" );
//     }

//     private void hide( Subgraph sg ) {
// 	sg.setAttribute( "style", "dotted" );
// 	sg.setAttribute( "color", "whitesmoke" );
//     }

    public int getCluster( ) {
	return _cluster;
    }



    public boolean getLocal( ) {
	return _local;
    }


    public boolean getStart( ) {
	return _start;
    }

    public Element getElement( VisualizationPanel visPanel ) {
	throw new RuntimeException( );
    }
    

}