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package com.vci.client.ui.treeTable;
 
import javax.swing.JTree;
import javax.swing.SwingUtilities;
import javax.swing.event.TreeExpansionEvent;
import javax.swing.event.TreeExpansionListener;
import javax.swing.event.TreeModelEvent;
import javax.swing.event.TreeModelListener;
import javax.swing.table.AbstractTableModel;
import javax.swing.tree.TreePath;
 
public class TreeTableModelAdapter extends AbstractTableModel {
 
    /**
     * 
     */
    private static final long serialVersionUID = 5462458834257787803L;
    
    JTree tree;
    InterfaceTreeTableModel treeTableModel;
    
    public TreeTableModelAdapter(InterfaceTreeTableModel treeTableModel, JTree tree) {
        this.tree = tree;
        this.treeTableModel = treeTableModel;
        
        tree.addTreeExpansionListener(new TreeExpansionListener() {
            // Don't use fireTableRowsInserted() here; the selection model
            // would get updated twice. 
            public void treeExpanded(TreeExpansionEvent event) {  
                fireTableDataChanged(); 
            }
            public void treeCollapsed(TreeExpansionEvent event) {  
                fireTableDataChanged(); 
            }
        });
        
        // Install a TreeModelListener that can update the table when
        // tree changes. We use delayedFireTableDataChanged as we can
        // not be guaranteed the tree will have finished processing
        // the event before us.
        treeTableModel.addTreeModelListener(new TreeModelListener() {
            public void treeNodesChanged(TreeModelEvent e) {
                delayedFireTableDataChanged();
            }
 
            public void treeNodesInserted(TreeModelEvent e) {
                delayedFireTableDataChanged();
            }
 
            public void treeNodesRemoved(TreeModelEvent e) {
                delayedFireTableDataChanged();
            }
 
            public void treeStructureChanged(TreeModelEvent e) {
                delayedFireTableDataChanged();
            }
        });
    }
    
    // Wrappers, implementing TableModel interface. 
 
    public int getColumnCount() {
        return treeTableModel.getColumnCount();
    }
 
    public String getColumnName(int column) {
        return treeTableModel.getColumnName(column);
    }
 
    public Class getColumnClass(int column) {
        return treeTableModel.getColumnClass(column);
    }
 
    public int getRowCount() {
        return tree.getRowCount();
    }
 
    protected Object nodeForRow(int row) {
        TreePath treePath = tree.getPathForRow(row);
        return treePath.getLastPathComponent();         
    }
 
    public Object getValueAt(int row, int column) {
        return treeTableModel.getValueAt(nodeForRow(row), column);
    }
 
    public boolean isCellEditable(int row, int column) {
        return treeTableModel.isCellEditable(nodeForRow(row), column); 
    }
 
    public void setValueAt(Object value, int row, int column) {
        treeTableModel.setValueAt(value, nodeForRow(row), column);
    }
    
    /**
     * Invokes fireTableDataChanged after all the pending events have been
     * processed. SwingUtilities.invokeLater is used to handle this.
     */
    protected void delayedFireTableDataChanged() {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                fireTableDataChanged();
            }
        });
    }
}