IconNode.java

/*
Copyright 2011-2016 Google Inc. All Rights Reserved.

Licensed 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 com.google.security.zynamics.zylib.gui.jtree;

import javax.swing.Icon;
import javax.swing.tree.DefaultMutableTreeNode;

import com.google.common.base.Preconditions;

public class IconNode extends DefaultMutableTreeNode {
  private static final long serialVersionUID = -7079996631145030853L;

  protected Icon icon = null;
  protected String iconName;

  public IconNode() {
    this(null);
  }

  public IconNode(final Object userObject) {
    this(userObject, true, null);
  }

  public IconNode(final Object userObject, final boolean allowsChildren, final Icon icon) {
    super(userObject, allowsChildren);
    this.icon = icon;
  }

  public Icon getIcon() {
    return icon;
  }

  public String getIconName() {
    if (iconName != null) {
      return iconName;
    } else {
      if (userObject == null) {
        return null;
      } else {
        final String str = userObject.toString();
        int index = str.lastIndexOf(".");
        if (index != -1) {
          return str.substring(++index);
        } else {
          return null;
        }
      }
    }
  }

  public void setIcon(final Icon icon) {
    this.icon = Preconditions.checkNotNull(icon, "Error: icon argument can not be null");
  }

  public void setIconName(final String name) {
    iconName = Preconditions.checkNotNull(name, "Error: name argument can not be null");
  }
}