platform/platform-impl/src/com/intellij/openapi/fileChooser/ex/FileNodeDescriptor.java

/*
 * Copyright 2000-2009 JetBrains s.r.o.
 *
 * 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.intellij.openapi.fileChooser.ex;

import com.intellij.ide.util.treeView.NodeDescriptor;
import com.intellij.openapi.fileChooser.FileElement;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.IconLoader;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.ui.SimpleTextAttributes;
import org.jetbrains.annotations.NotNull;

import javax.swing.*;

public class FileNodeDescriptor extends NodeDescriptor {

  private FileElement myFileElement;
  private final Icon myOriginalIcon;
  private final String myComment;

  public FileNodeDescriptor(Project project,
                            @NotNull FileElement element,
                            NodeDescriptor parentDescriptor,
                            Icon closedIcon,
                            String name,
                            String comment) {
    super(project, parentDescriptor);
    myOriginalIcon = closedIcon;
    myComment = comment;
    myFileElement = element;
    myName = name;
  }

  public boolean update() {
    boolean changed = false;

    // special handling for roots with names (e.g. web roots)
    if (myName == null || myComment == null) {
      final String newName = myFileElement.toString();
      if (!newName.equals(myName)) changed = true;
      myName = newName;
    }

    VirtualFile file = myFileElement.getFile();

    if (file == null) return true;

    setIcon(myOriginalIcon);
    if (myFileElement.isHidden()) {
      setIcon(IconLoader.getTransparentIcon(getIcon()));
    }
    myColor = myFileElement.isHidden() ? SimpleTextAttributes.DARK_TEXT.getFgColor() : null;
    return changed;
  }

  @NotNull
  public final FileElement getElement() {
    return myFileElement;
  }

  protected final void setElement(FileElement descriptor) {
    myFileElement = descriptor;
  }

  public String getComment() {
    return myComment;
  }
}