treecellrenderer.java

来自「linux下建立JAVA虚拟机的源码KAFFE」· Java 代码 · 共 74 行

/* TreeCellRenderer.java --
   Copyright (C) 2002, 2004, 2006,  Free Software Foundation, Inc.

This file is part of GNU Classpath.

GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
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any later version.

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General Public License for more details.

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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.

Linking this library statically or dynamically with other modules is
making a combined work based on this library.  Thus, the terms and
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combination.

As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
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this exception to your version of the library, but you are not
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package javax.swing.tree;

import java.awt.Component;

import javax.swing.JTree;

/**
 * A <code>TreeCellRenderer</code> is used by the {@link JTree} component to
 * paint individual tree elements (nodes).
 * 
 * @author Andrew Selkirk
 */
public interface TreeCellRenderer
{
  /**
   * Returns a component that has been configured to display one element (or 
   * node) in a {@link JTree} component.  The arguments to this method are used
   * to pass in the value and state of the element to be rendered.
   * 
   * @param tree  the tree.
   * @param value  the value to render.
   * @param selected  is the tree element selected?
   * @param expanded  is the tree element expanded?
   * @param leaf  is the tree element a leaf node?
   * @param row  the row index.
   * @param hasFocus  does the tree element have the focus?
   * 
   * @return A component that is configured for rendering the tree element.
   */
  Component getTreeCellRendererComponent(JTree tree, Object value,
                                         boolean selected, boolean expanded,
                                         boolean leaf, int row,
                                         boolean hasFocus);

}