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path: root/plugins/git4idea/src/git4idea/ui/branch/GitCompareBranchesDialog.java
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/*
 * Copyright 2000-2011 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 git4idea.ui.branch;

import com.intellij.dvcs.DvcsUtil;
import com.intellij.icons.AllIcons;
import com.intellij.openapi.diff.impl.dir.FrameDialogWrapper;
import com.intellij.openapi.project.Project;
import com.intellij.ui.TabbedPaneImpl;
import git4idea.GitUtil;
import git4idea.repo.GitRepository;
import git4idea.util.GitCommitCompareInfo;
import icons.Git4ideaIcons;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

import javax.swing.*;

/**
 * Dialog for comparing two Git branches.
 */
public class GitCompareBranchesDialog extends FrameDialogWrapper {

  @NotNull private final Project myProject;

  @NotNull private final JPanel myLogPanel;
  @NotNull private final TabbedPaneImpl myTabbedPane;
  @NotNull private final String myTitle;

  @NotNull private final Mode myMode;

  public GitCompareBranchesDialog(@NotNull Project project,
                                  @NotNull String branchName,
                                  @NotNull String currentBranchName,
                                  @NotNull GitCommitCompareInfo compareInfo,
                                  @NotNull GitRepository initialRepo) {
    this(project, branchName, currentBranchName, compareInfo, initialRepo, false);
  }

  public GitCompareBranchesDialog(@NotNull Project project,
                                  @NotNull String branchName,
                                  @NotNull String currentBranchName,
                                  @NotNull GitCommitCompareInfo compareInfo,
                                  @NotNull GitRepository initialRepo,
                                  boolean dialog) {
    myProject = project;

    String rootString;
    if (compareInfo.getRepositories().size() == 1 && GitUtil.getRepositoryManager(myProject).moreThanOneRoot()) {
      rootString = " in root " + DvcsUtil.getShortRepositoryName(initialRepo);
    }
    else {
      rootString = "";
    }
    myTitle = String.format("Comparing %s with %s%s", currentBranchName, branchName, rootString);
    myMode = dialog ? Mode.MODAL : Mode.FRAME;

    JPanel diffPanel = new GitCompareBranchesDiffPanel(myProject, branchName, currentBranchName, compareInfo);
    myLogPanel = new GitCompareBranchesLogPanel(myProject, branchName, currentBranchName, compareInfo, initialRepo);

    myTabbedPane = new TabbedPaneImpl(SwingConstants.TOP);
    myTabbedPane.addTab("Log", Git4ideaIcons.Branch, myLogPanel);
    myTabbedPane.addTab("Diff", AllIcons.Actions.Diff, diffPanel);
    myTabbedPane.setKeyboardNavigation(TabbedPaneImpl.DEFAULT_PREV_NEXT_SHORTCUTS);
  }

  @NotNull
  @Override
  protected JComponent getPanel() {
    return myTabbedPane;
  }

  @Nullable
  @Override
  protected JComponent getPreferredFocusedComponent() {
    return myLogPanel;
  }

  @Nullable
  @Override
  protected String getDimensionServiceKey() {
    return GitCompareBranchesDialog.class.getName();
  }

  @NotNull
  @Override
  protected String getTitle() {
    return myTitle;
  }

  @NotNull
  @Override
  protected Project getProject() {
    return myProject;
  }

  @NotNull
  @Override
  protected Mode getMode() {
    return myMode;
  }
}