private static Editor createEditor() {
   EditorFactory editorFactory = EditorFactory.getInstance();
   Document document = editorFactory.createDocument("");
   EditorEx editor = (EditorEx) editorFactory.createEditor(document);
   reinitSettings(editor);
   return editor;
 }
  public LanguageConsoleImpl(
      Project project, String title, LightVirtualFile lightFile, boolean initComponents) {
    myProject = project;
    myTitle = title;
    myVirtualFile = lightFile;
    EditorFactory editorFactory = EditorFactory.getInstance();
    myHistoryFile = new LightVirtualFile(getTitle() + ".history.txt", FileTypes.PLAIN_TEXT, "");
    myEditorDocument = FileDocumentManager.getInstance().getDocument(lightFile);
    reparsePsiFile();
    assert myEditorDocument != null;
    myConsoleEditor = (EditorEx) editorFactory.createEditor(myEditorDocument, myProject);
    myConsoleEditor.addFocusListener(myFocusListener);
    myCurrentEditor = myConsoleEditor;
    myHistoryViewer =
        (EditorEx)
            editorFactory.createViewer(
                ((EditorFactoryImpl) editorFactory).createDocument(true), myProject);
    myUpdateQueue = new MergingUpdateQueue("ConsoleUpdateQueue", 300, true, null);
    Disposer.register(this, myUpdateQueue);

    // action shortcuts are not yet registered
    ApplicationManager.getApplication()
        .invokeLater(
            new Runnable() {
              @Override
              public void run() {
                installEditorFactoryListener();
              }
            });

    if (initComponents) {
      initComponents();
    }
  }
  public ImplementationViewComponent(PsiElement[] elements, final int index) {
    super(new BorderLayout());

    final Project project = elements.length > 0 ? elements[0].getProject() : null;
    EditorFactory factory = EditorFactory.getInstance();
    Document doc = factory.createDocument("");
    doc.setReadOnly(true);
    myEditor = factory.createEditor(doc, project);
    ((EditorEx) myEditor).setBackgroundColor(EditorFragmentComponent.getBackgroundColor(myEditor));

    final EditorSettings settings = myEditor.getSettings();
    settings.setAdditionalLinesCount(1);
    settings.setAdditionalColumnsCount(1);
    settings.setLineMarkerAreaShown(false);
    settings.setIndentGuidesShown(false);
    settings.setLineNumbersShown(false);
    settings.setFoldingOutlineShown(false);

    myBinarySwitch = new CardLayout();
    myViewingPanel = new JPanel(myBinarySwitch);
    myEditor.setBorder(null);
    ((EditorEx) myEditor).getScrollPane().setViewportBorder(JBScrollPane.createIndentBorder());
    myViewingPanel.add(myEditor.getComponent(), TEXT_PAGE_KEY);

    myBinaryPanel = new JPanel(new BorderLayout());
    myViewingPanel.add(myBinaryPanel, BINARY_PAGE_KEY);

    add(myViewingPanel, BorderLayout.CENTER);

    myToolbar = createToolbar();
    myLocationLabel = new JLabel();
    myCountLabel = new JLabel();

    final JPanel header = new JPanel(new BorderLayout(2, 0));
    header.setBorder(
        BorderFactory.createCompoundBorder(
            IdeBorderFactory.createBorder(SideBorder.BOTTOM),
            IdeBorderFactory.createEmptyBorder(0, 0, 0, 5)));
    final JPanel toolbarPanel = new JPanel(new GridBagLayout());
    final GridBagConstraints gc =
        new GridBagConstraints(
            GridBagConstraints.RELATIVE,
            0,
            1,
            1,
            0,
            0,
            GridBagConstraints.WEST,
            GridBagConstraints.NONE,
            new Insets(0, 2, 0, 0),
            0,
            0);
    toolbarPanel.add(myToolbar.getComponent(), gc);

    setPreferredSize(new Dimension(600, 400));

    update(
        elements,
        new PairFunction<PsiElement[], List<FileDescriptor>, Boolean>() {
          @Override
          public Boolean fun(
              final PsiElement[] psiElements, final List<FileDescriptor> fileDescriptors) {
            if (psiElements.length == 0) return false;
            myElements = psiElements;

            myIndex = index < myElements.length ? index : 0;
            PsiFile psiFile = getContainingFile(myElements[myIndex]);

            VirtualFile virtualFile = psiFile.getVirtualFile();
            EditorHighlighter highlighter;
            if (virtualFile != null)
              highlighter = HighlighterFactory.createHighlighter(project, virtualFile);
            else {
              String fileName = psiFile.getName(); // some artificial psi file, lets do best we can
              highlighter = HighlighterFactory.createHighlighter(project, fileName);
            }

            ((EditorEx) myEditor).setHighlighter(highlighter);

            gc.fill = GridBagConstraints.HORIZONTAL;
            gc.weightx = 1;
            if (myElements.length > 1) {
              myFileChooser =
                  new ComboBox(
                      fileDescriptors.toArray(new FileDescriptor[fileDescriptors.size()]), 250);
              updateRenderer(project);

              myFileChooser.addActionListener(
                  new ActionListener() {
                    @Override
                    public void actionPerformed(ActionEvent e) {
                      int index = myFileChooser.getSelectedIndex();
                      if (myIndex != index) {
                        myIndex = index;
                        updateControls();
                      }
                    }
                  });

              myLabel = new JLabel();
              myLabel.setVisible(false);
              toolbarPanel.add(myFileChooser, gc);
            } else {
              myFileChooser = new ComboBox();
              myFileChooser.setVisible(false);
              myCountLabel.setVisible(false);

              myLabel = new JLabel();
              VirtualFile file = psiFile.getVirtualFile();
              if (file != null) {
                myLabel.setIcon(getIconForFile(psiFile));
                myLabel.setForeground(
                    FileStatusManager.getInstance(project).getStatus(file).getColor());
                myLabel.setText(file.getPresentableName());
                myLabel.setBorder(
                    new CompoundBorder(
                        IdeBorderFactory.createRoundedBorder(),
                        IdeBorderFactory.createEmptyBorder(0, 0, 0, 5)));
              }
              toolbarPanel.add(myLabel, gc);
            }

            gc.fill = GridBagConstraints.NONE;
            gc.weightx = 0;
            toolbarPanel.add(myCountLabel, gc);

            header.add(toolbarPanel, BorderLayout.CENTER);
            header.add(myLocationLabel, BorderLayout.EAST);

            add(header, BorderLayout.NORTH);

            updateControls();
            return true;
          }
        });
  }
  /**
   * Inspects all lines of the given document and wraps all of them that exceed {@link
   * CodeStyleSettings#RIGHT_MARGIN right margin}.
   *
   * <p>I.e. the algorithm is to do the following for every line:
   *
   * <p>
   *
   * <pre>
   * <ol>
   *   <li>
   *      Check if the line exceeds {@link CodeStyleSettings#RIGHT_MARGIN right margin}. Go to the next line in the case of
   *      negative answer;
   *   </li>
   *   <li>Determine line wrap position; </li>
   *   <li>
   *      Perform 'smart wrap', i.e. not only wrap the line but insert additional characters over than line feed if necessary.
   *      For example consider that we wrap a single-line comment - we need to insert comment symbols on a start of the wrapped
   *      part as well. Generally, we get the same behavior as during pressing 'Enter' at wrap position during editing document;
   *   </li>
   * </ol>
   * </pre>
   *
   * @param file file that holds parsed document tree
   * @param document target document
   * @param startOffset start offset of the first line to check for wrapping (inclusive)
   * @param endOffset end offset of the first line to check for wrapping (exclusive)
   */
  private void wrapLongLinesIfNecessary(
      @NotNull final PsiFile file,
      @Nullable final Document document,
      final int startOffset,
      final int endOffset) {
    if (!mySettings.getCommonSettings(file.getLanguage()).WRAP_LONG_LINES
        || PostprocessReformattingAspect.getInstance(file.getProject())
            .isViewProviderLocked(file.getViewProvider())
        || document == null) {
      return;
    }

    final VirtualFile vFile = FileDocumentManager.getInstance().getFile(document);
    if ((vFile == null || vFile instanceof LightVirtualFile)
        && !ApplicationManager.getApplication().isUnitTestMode()) {
      // we assume that control flow reaches this place when the document is backed by a "virtual"
      // file so any changes made by
      // a formatter affect only PSI and it is out of sync with a document text
      return;
    }

    Editor editor = PsiUtilBase.findEditor(file);
    EditorFactory editorFactory = null;
    if (editor == null) {
      if (!ApplicationManager.getApplication().isDispatchThread()) {
        return;
      }
      editorFactory = EditorFactory.getInstance();
      editor = editorFactory.createEditor(document, file.getProject());
    }
    try {
      final Editor editorToUse = editor;
      ApplicationManager.getApplication()
          .runWriteAction(
              new Runnable() {
                @Override
                public void run() {
                  final CaretModel caretModel = editorToUse.getCaretModel();
                  final int caretOffset = caretModel.getOffset();
                  final RangeMarker caretMarker =
                      editorToUse.getDocument().createRangeMarker(caretOffset, caretOffset);
                  doWrapLongLinesIfNecessary(
                      editorToUse,
                      file.getProject(),
                      editorToUse.getDocument(),
                      startOffset,
                      endOffset);
                  if (caretMarker.isValid()
                      && caretModel.getOffset() != caretMarker.getStartOffset()) {
                    caretModel.moveToOffset(caretMarker.getStartOffset());
                  }
                }
              });
    } finally {
      PsiDocumentManager documentManager = PsiDocumentManager.getInstance(file.getProject());
      if (documentManager.isUncommited(document)) documentManager.commitDocument(document);
      if (editorFactory != null) {
        editorFactory.releaseEditor(editor);
      }
    }
  }