typedatatree.java

java 调用windows的api

package org.jawin.browser.tree;

import javax.swing.*;
import javax.swing.event.*;
import java.util.Vector;
import org.jawin.browser.data.BaseData;
import javax.swing.tree.TreeSelectionModel;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import org.jawin.browser.popup.PopupManager;

/**
 * A JTree that can display type info and on selection can notify other components
 * that teh selection has changed by passing them the selected node or null
 *
 * <p>Title: Jawin Code Generation GUI</p>
 * <p>Description: GUI for exploring type libraries and generating Java code</p>
 * <p>Copyright: Copyright (c) 2003</p>
 * <p>Company: Open Source Incentive</p>
 *
 * @author Josh Passenger
 * @version 1.0
 */

public class TypeDataTree extends JTree implements MouseListener
{
	private TypeDataTreeCellRenderer renderer = new TypeDataTreeCellRenderer();
	private TypeDataTreeModel typeDataTreeModel = null;
	private Vector typeDataTreeSelectionListeners = new Vector();

	public TypeDataTree(TypeDataTreeModel treeModel)
	{
		super(treeModel);
		getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);
		typeDataTreeModel = treeModel;
		setCellRenderer(renderer);
		registerlisteners();
	}

	public void addTypeDataTreeSelectionListener(TypeDataTreeSelectionListener l)
	{
		typeDataTreeSelectionListeners.add(l);
	}

	public void removeTypeDataTreeSelectionListener(TypeDataTreeSelectionListener l)
	{
		typeDataTreeSelectionListeners.remove(l);
	}

	public TypeDataTreeSelectionListener getTypeDataTreeSelectionListenerAt(int index)
	{
		return (TypeDataTreeSelectionListener) typeDataTreeSelectionListeners.get(index);
	}

	public void fireSelectionChanged()
	{
		BaseData baseData = (BaseData) getLastSelectedPathComponent();

		for (int i = 0; i < typeDataTreeSelectionListeners.size(); i++)
		{
			getTypeDataTreeSelectionListenerAt(i).selectionChanged(baseData);
		}
	}

	private void registerlisteners()
	{
		addTreeSelectionListener(new TreeSelectionListener()
		{
			public void valueChanged(TreeSelectionEvent e)
			{
				fireSelectionChanged();
			}
		});

		addMouseListener(this);
	}

	/**
	 * Fetch the current tree as XML
	 *
	 * @param buffer the buffer to accumulate to
	 */
	public void toXML(StringBuffer buffer)
	{
		typeDataTreeModel.toXML(buffer);
	}

	public void selectedNodeToXML(StringBuffer buffer)
	{
		BaseData node = (BaseData) getLastSelectedPathComponent();

		if (node == null)
		{
			typeDataTreeModel.toXML(buffer);
			return;
		}

		node.toXML(0, buffer);
	}

	public void mouseClicked(MouseEvent e)
	{
		if ((e.getModifiers() & MouseEvent.BUTTON3_MASK) != 0)
		{
			PopupManager.getInstance().showMenu(this, e.getX(), e.getY());
		}
	}

	public void mousePressed(MouseEvent e)
	{
	}

	public void mouseReleased(MouseEvent e)
	{
	}

	public void mouseEntered(MouseEvent e)
	{
	}

	public void mouseExited(MouseEvent e)
	{
	}

}