001 /* TreeCellRenderer.java --
002 Copyright (C) 2002, 2004, 2006, Free Software Foundation, Inc.
003
004 This file is part of GNU Classpath.
005
006 GNU Classpath is free software; you can redistribute it and/or modify
007 it under the terms of the GNU General Public License as published by
008 the Free Software Foundation; either version 2, or (at your option)
009 any later version.
010
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012 WITHOUT ANY WARRANTY; without even the implied warranty of
013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
014 General Public License for more details.
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019 02110-1301 USA.
020
021 Linking this library statically or dynamically with other modules is
022 making a combined work based on this library. Thus, the terms and
023 conditions of the GNU General Public License cover the whole
024 combination.
025
026 As a special exception, the copyright holders of this library give you
027 permission to link this library with independent modules to produce an
028 executable, regardless of the license terms of these independent
029 modules, and to copy and distribute the resulting executable under
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036 exception statement from your version. */
037
038
039 package javax.swing.tree;
040
041 import java.awt.Component;
042
043 import javax.swing.JTree;
044
045 /**
046 * A <code>TreeCellRenderer</code> is used by the {@link JTree} component to
047 * paint individual tree elements (nodes).
048 *
049 * @author Andrew Selkirk
050 */
051 public interface TreeCellRenderer
052 {
053 /**
054 * Returns a component that has been configured to display one element (or
055 * node) in a {@link JTree} component. The arguments to this method are used
056 * to pass in the value and state of the element to be rendered.
057 *
058 * @param tree the tree.
059 * @param value the value to render.
060 * @param selected is the tree element selected?
061 * @param expanded is the tree element expanded?
062 * @param leaf is the tree element a leaf node?
063 * @param row the row index.
064 * @param hasFocus does the tree element have the focus?
065 *
066 * @return A component that is configured for rendering the tree element.
067 */
068 Component getTreeCellRendererComponent(JTree tree, Object value,
069 boolean selected, boolean expanded,
070 boolean leaf, int row,
071 boolean hasFocus);
072
073 }