treetablemodeladapter.java

来自「实现了jtree和jtable的联合功能」· Java 代码 · 共 64 行

import javax.swing.table.AbstractTableModel;
import javax.swing.JTree;
import javax.swing.event.TreeExpansionListener;
import javax.swing.event.TreeExpansionEvent;
import javax.swing.tree.TreePath;

public class TreeTableModelAdapter extends AbstractTableModel
{
    JTree tree;
    TreeTableModel treeTableModel;

    public TreeTableModelAdapter(TreeTableModel 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();
            }
        });
    }

  // 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);
    }
}