org.jdesktop.swingx.renderer.DefaultTreeRenderer Maven / Gradle / Ivy
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/*
* $Id: DefaultTreeRenderer.java 3927 2011-02-22 16:34:11Z kleopatra $
*
* Copyright 2006 Sun Microsystems, Inc., 4150 Network Circle,
* Santa Clara, California 95054, U.S.A. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
package org.jdesktop.swingx.renderer;
import java.awt.Component;
import javax.swing.JTree;
import javax.swing.tree.TreeCellRenderer;
/**
* Adapter to glue SwingX renderer support to core api.
*
*
*
* @author Jeanette Winzenburg
*
*
*/
public class DefaultTreeRenderer extends AbstractRenderer
implements TreeCellRenderer {
private TreeCellContext cellContext;
/**
* Instantiates a default tree renderer with the default component
* provider.
*
*/
public DefaultTreeRenderer() {
this((ComponentProvider)null);
}
/**
* Instantiates a default tree renderer with the given component provider.
* If the controller is null, creates and uses a default. The default
* controller is of type WrappingProvider.
*
* @param componentProvider the provider of the configured component to
* use for cell rendering
*/
public DefaultTreeRenderer(ComponentProvider componentProvider) {
super(componentProvider);
this.cellContext = new TreeCellContext();
}
/**
* Instantiates a default tree renderer with the default
* wrapping provider, using the given IconValue for
* customizing the icons.
*
* @param iv the IconValue to use for mapping a custom icon
* for a given value
*
*/
public DefaultTreeRenderer(IconValue iv) {
this(new WrappingProvider(iv));
}
/**
* Instantiates a default tree renderer with a default component
* provider using the given converter.
*
* @param sv the converter to use for mapping the
* content value to a String representation.
*
*/
public DefaultTreeRenderer(StringValue sv) {
this(new WrappingProvider(sv));
}
/**
* Instantiates a default tree renderer with the default
* wrapping provider, using the given IconValue for
* customizing the icons and the given StringValue for
* node content.
*
* @param iv the IconValue to use for mapping a custom icon
* for a given value
* @param sv the converter to use for mapping the
* content value to a String representation.
*
*/
public DefaultTreeRenderer(IconValue iv, StringValue sv) {
this(new WrappingProvider(iv, sv));
}
/**
* Instantiates a default tree renderer with the default
* wrapping provider, using the given IconValue for
* customizing the icons and the given StringValue for
* node content.
*
* @param iv the IconValue to use for mapping a custom icon
* for a given value
* @param sv the converter to use for mapping the
* content value to a String representation.
* @param unwrapUserObject a flag indicating whether this provider
* should auto-unwrap the userObject from the context value.
*
*/
public DefaultTreeRenderer(IconValue iv, StringValue sv, boolean unwrapUserObject) {
this(new WrappingProvider(iv, sv, unwrapUserObject));
}
// -------------- implements javax.swing.table.TableCellRenderer
/**
*
* Returns a configured component, appropriate to render the given tree
* cell.
*
* @param tree the JTree
* @param value the value to assign to the cell
* @param selected true if cell is selected
* @param expanded true if the cell is expanded
* @param leaf true if the cell is a leaf
* @param hasFocus true if cell has focus
* @param row the row of the cell to render
* @return a component to render the given list cell.
*/
@Override
public Component getTreeCellRendererComponent(JTree tree, Object value,
boolean selected, boolean expanded, boolean leaf, int row,
boolean hasFocus) {
cellContext.installContext(tree, value, row, 0, selected, hasFocus,
expanded, leaf);
Component comp = componentController.getRendererComponent(cellContext);
// fix issue #1040-swingx: memory leak if value not released
cellContext.replaceValue(null);
return comp;
}
/**
* {@inheritDoc}
*/
@Override
protected ComponentProvider createDefaultComponentProvider() {
return new WrappingProvider();
}
}