platform/platform-api/src/com/intellij/openapi/diff/DiffContentUtil.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.diff;

import com.intellij.openapi.fileTypes.FileType;
import com.intellij.openapi.vfs.VirtualFile;

/**
 * @author dyoma
 */
public class DiffContentUtil {
  public static FileType getContentType(VirtualFile file) {
    if (file == null) return null;
    return file.getFileType();
  }

  public static boolean isTextFile(VirtualFile file) {
    return file != null && file.isValid() && !file.isDirectory() &&
           isTextType(file.getFileType());
  }

  public static boolean isTextType(FileType fileType) {
    return fileType != null && !fileType.isBinary();
  }

  public static String getTitle(VirtualFile virtualFile) {
    VirtualFile parent = virtualFile.getParent();
    if (parent == null) return virtualFile.getPresentableUrl();
    return virtualFile.getName() + " (" + parent.getPresentableUrl() + ")";
  }
}