platform/vcs-impl/src/com/intellij/openapi/vcs/changes/ui/ChangesBrowserFilePathNode.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.vcs.changes.ui;

import com.intellij.openapi.util.io.FileUtil;
import com.intellij.openapi.vcs.FilePath;
import com.intellij.openapi.vcs.changes.Change;
import com.intellij.openapi.vcs.changes.ChangesUtil;
import com.intellij.ui.SimpleTextAttributes;
import com.intellij.util.PlatformIcons;

import java.io.File;

/**
 * @author yole
 */
public class ChangesBrowserFilePathNode extends ChangesBrowserNode<FilePath> {
  public ChangesBrowserFilePathNode(FilePath userObject) {
    super(userObject);
    if (!userObject.isDirectory()) {
      myCount = 1;
    }
  }

  @Override
  protected boolean isDirectory() {
    return getUserObject().isDirectory() && isLeaf();
  }

  @Override
  public void render(final ChangesBrowserNodeRenderer renderer, final boolean selected, final boolean expanded, final boolean hasFocus) {
    final FilePath path = (FilePath)userObject;
    if (path.isDirectory() || !isLeaf()) {
      renderer.append(getRelativePath(safeCastToFilePath(((ChangesBrowserNode)getParent()).getUserObject()), path),
             SimpleTextAttributes.REGULAR_ATTRIBUTES);
      if (!isLeaf()) {
        appendCount(renderer);
      }
      renderer.setIcon(PlatformIcons.DIRECTORY_CLOSED_ICON);
    }
    else {
      if (renderer.isShowFlatten()) {
        renderer.append(path.getName(), SimpleTextAttributes.REGULAR_ATTRIBUTES);
        final FilePath parentPath = path.getParentPath();
        renderer.append(" (" + FileUtil.getLocationRelativeToUserHome(parentPath.getPresentableUrl()) + ")", SimpleTextAttributes.GRAYED_ATTRIBUTES);
      }
      else {
        renderer.append(getRelativePath(safeCastToFilePath(((ChangesBrowserNode)getParent()).getUserObject()), path),
                        SimpleTextAttributes.REGULAR_ATTRIBUTES);
      }
      renderer.setIcon(path.getFileType().getIcon());
    }
  }

  @Override
  public String getTextPresentation() {
    return getUserObject().getName();
  }

  @Override
  public String toString() {
    return FileUtil.toSystemDependentName(getUserObject().getPath());
  }

  public static FilePath safeCastToFilePath(Object o) {
    if (o instanceof FilePath) return (FilePath)o;
    if (o instanceof Change) {
      return ChangesUtil.getAfterPath((Change)o);
    }
    return null;
  }

  public static String getRelativePath(FilePath parent, FilePath child) {
    final String systemDependentChild = child.getPath().replace('/', File.separatorChar);
    final String systemDependentParent = parent == null ? null : parent.getPath().replace('/', File.separatorChar);
    if (systemDependentParent == null || ! systemDependentChild.startsWith(systemDependentParent)) {
      return systemDependentChild;
    }
    final int beginOffset = (systemDependentParent.length() == 1 && '/' == systemDependentParent.charAt(0)) ? 0 : 1; // IDEADEV-35767
    return systemDependentChild.substring(systemDependentParent.length() + beginOffset).replace('/', File.separatorChar);
  }

  public int getSortWeight() {
    if (((FilePath)userObject).isDirectory()) return 4;
    return 5;
  }

  public int compareUserObjects(final Object o2) {
    if (o2 instanceof FilePath) {
      return getUserObject().getPath().compareToIgnoreCase(((FilePath)o2).getPath());
    }

    return 0;
  }

  public FilePath[] getFilePathsUnder() {
    return new FilePath[] { getUserObject() };
  }
}