/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package bradswebdavclient;
import java.awt.Component;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JTree;
import javax.swing.tree.DefaultTreeCellRenderer;
/**
*
* @author mcevoyb
*/
public class MyCellRenderer extends DefaultTreeCellRenderer {
public static Icon load(String s) {
InputStream in = MyCellRenderer.class.getResourceAsStream(s);
if( in == null ) {
System.out.println("Could not load: " + s);
return null;
}
MyByteArrayOutputStream out = new MyByteArrayOutputStream();
out.read(in);
return new ImageIcon(out.toByteArray());
}
private static Map<String,Icon> icons = new HashMap<String,Icon>();
public static synchronized Icon getIcon(String name) {
Icon ic = icons.get(name);
if( ic == null ) {
ic = load(name);
icons.put(name,ic);
}
return ic;
}
@Override
public Component getTreeCellRendererComponent( JTree tree,
Object value,
boolean sel,
boolean expanded,
boolean leaf,
int row,
boolean hasFocus) {
Component c = super.getTreeCellRendererComponent(tree,value,sel,expanded,leaf,row,hasFocus);
AbstractTreeNode node = (AbstractTreeNode) value;
node.populateCellRenderer(this);
return this;
}
public void defaultCellRendering(String iconName) {
if( !iconName.startsWith("/") ) iconName = "/" + iconName;
Icon ic = getIcon(iconName);
setIcon(ic);
}
}