package leaf.ui;

import java.awt.Insets;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.dnd.DropTarget;
import java.awt.dnd.DropTargetDragEvent;
import java.awt.dnd.DropTargetDropEvent;
import java.awt.dnd.DropTargetEvent;
import java.awt.dnd.DropTargetListener;

import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.TreeModel;
import javax.swing.tree.TreePath;

import com.evolute.entity.evo.EvoDataException;
import com.evolute.utils.error.ErrorLogger;

import siprp.data.outer.HsRiscoData;
import siprp.data.outer.HsRiscoMedidaData;
import siprp.data.outer.HsRiscoTemaData;


public abstract class DraggableLeafTree extends LeafTree 
{

	private static final long serialVersionUID = 1L;
	
	public DraggableLeafTree( TreeModel model )
	{
		super(model);
		setDragEnabled( true );
		setAutoscrolls( true );
		setDropTarget();
	}
	
	public abstract void setDropTarget( );
	
	public void autoscroll( Point cursorLocation )  
	{
        Insets insets = getAutoscrollInsets();
        Rectangle outer = getVisibleRect();
        Rectangle inner = new Rectangle( outer.x + insets.left, outer.y + insets.top, outer.width - ( insets.left+insets.right ), outer.height - ( insets.top+insets.bottom ) );
        
        if ( !inner.contains(cursorLocation ) )  
        {
                Rectangle scrollRect = new Rectangle( cursorLocation.x - insets.left, cursorLocation.y - insets.top, insets.left + insets.right, insets.top + insets.bottom );
                scrollRectToVisible(scrollRect);
        }
	}
	
	public Insets getAutoscrollInsets()  
	{
	     return new Insets( 20, 20, 20, 20 ); 
	}
	

	
	public Object getSelectedObject()
	{
		DefaultMutableTreeNode node = getSelectedNode();
		return node == null ? null : node.getUserObject();
	}

	public DefaultMutableTreeNode getSelectedNode()
	{
		TreePath path = getSelectionPath();
		return path == null ? null : (DefaultMutableTreeNode) path.getLastPathComponent();
	}

}