public void actionPerformed(ActionEvent e) {
      JGrid grid = (JGrid) e.getSource();
      SelectionModel sm = grid.getSelectionModel();
      anchorRow = sm.getAnchorRow();
      leadRow = sm.getLeadRow();
      anchorColumn = sm.getAnchorColumn();
      leadColumn = sm.getLeadColumn();

      int oldAnchorRow = anchorRow;
      int oldAnchorColumn = anchorColumn;

      if (grid.isEditing() && !grid.getCurrentCellEditor().stopCellEditing()) {
        return;
      }

      if (!inSelection) {
        moveWithinGridRange(grid, dx, dy, extend);
        if (!extend) {
          grid.changeSelection(anchorRow, anchorColumn, false, extend);
        } else {
          grid.changeSelection(leadRow, leadColumn, false, extend);
        }
      } else {
        if (moveWithinSelectedRange(grid, dx, dy, false)) {
          grid.changeSelection(anchorRow, anchorColumn, true, true);
        } else {
          grid.changeSelection(anchorRow, anchorColumn, false, false);
        }
      }
    }
 private int selectionSpan(SelectionModel sm, int orientation) {
   if (orientation == SwingConstants.VERTICAL) {
     return sm.getLastSelectedRow() - sm.getFirstSelectedRow() + 1;
   } else {
     return sm.getLastSelectedColumn() - sm.getFirstSelectedColumn() + 1;
   }
 }
  private void updateCursorHighlighting(boolean scroll) {
    hideBalloon();

    if (myCursorHighlighter != null) {
      HighlightManager.getInstance(mySearchResults.getProject())
          .removeSegmentHighlighter(mySearchResults.getEditor(), myCursorHighlighter);
      myCursorHighlighter = null;
    }

    final FindResult cursor = mySearchResults.getCursor();
    Editor editor = mySearchResults.getEditor();
    SelectionModel selection = editor.getSelectionModel();
    if (cursor != null) {
      Set<RangeHighlighter> dummy = new HashSet<RangeHighlighter>();
      highlightRange(
          cursor, new TextAttributes(null, null, Color.BLACK, EffectType.ROUNDED_BOX, 0), dummy);
      if (!dummy.isEmpty()) {
        myCursorHighlighter = dummy.iterator().next();
      }

      if (scroll) {
        if (mySearchResults.getFindModel().isGlobal()) {
          FoldingModel foldingModel = editor.getFoldingModel();
          final FoldRegion[] allRegions = editor.getFoldingModel().getAllFoldRegions();

          foldingModel.runBatchFoldingOperation(
              new Runnable() {
                @Override
                public void run() {
                  for (FoldRegion region : allRegions) {
                    if (!region.isValid()) continue;
                    if (cursor.intersects(TextRange.create(region))) {
                      region.setExpanded(true);
                    }
                  }
                }
              });
          selection.setSelection(cursor.getStartOffset(), cursor.getEndOffset());

          editor.getCaretModel().moveToOffset(cursor.getEndOffset());
          editor.getScrollingModel().scrollToCaret(ScrollType.CENTER);
        } else {
          if (!SearchResults.insideVisibleArea(editor, cursor)) {
            LogicalPosition pos = editor.offsetToLogicalPosition(cursor.getStartOffset());
            editor.getScrollingModel().scrollTo(pos, ScrollType.CENTER);
          }
        }
      }
      editor
          .getScrollingModel()
          .runActionOnScrollingFinished(
              new Runnable() {
                @Override
                public void run() {
                  showReplacementPreview();
                }
              });
    }
  }
 private int compare(int i, SelectionModel sm, int orientation) {
   int min = 0;
   int max = 0;
   if (orientation == SwingConstants.VERTICAL) {
     min = sm.getFirstSelectedRow();
     max = sm.getLastSelectedRow();
   } else {
     min = sm.getFirstSelectedColumn();
     max = sm.getLastSelectedColumn();
   }
   return compare(i, min, max + 1);
 }
    public void actionPerformed(ActionEvent e) {
      JGrid grid = (JGrid) e.getSource();
      if (toLimit) {
        if (vertically) {
          int rowCount = grid.getRowCount();
          this.dx = 0;
          this.dy = forwards ? rowCount : -rowCount;
        } else {
          int colCount = grid.getColumnCount();
          this.dx = forwards ? colCount : -colCount;
          this.dy = 0;
        }
      } else {
        if (!(grid.getParent().getParent() instanceof JScrollPane)) {
          return;
        }

        Dimension delta = grid.getParent().getSize();
        SelectionModel sm = grid.getSelectionModel();

        int start = 0;
        if (vertically) {
          start = (extend) ? sm.getLeadRow() : sm.getAnchorRow();
        } else {
          start = (extend) ? sm.getLeadColumn() : sm.getAnchorColumn();
        }

        if (vertically) {
          Rectangle r = grid.getCellBounds(start, 0);
          r.y += forwards ? delta.height : -delta.height;
          this.dx = 0;
          int newRow = grid.rowAtPoint(r.getLocation());
          if (newRow == -1 && forwards) {
            newRow = grid.getRowCount();
          }
          this.dy = newRow - start;
        } else {
          Rectangle r = grid.getCellBounds(0, start);
          r.x += forwards ? delta.width : -delta.width;
          int newColumn = grid.columnAtPoint(r.getLocation());
          if (newColumn == -1 && forwards) {
            newColumn = grid.getColumnCount();
          }
          this.dx = newColumn - start;
          this.dy = 0;
        }
      }
      super.actionPerformed(e);
    }
  private void updateInSelectionHighlighters() {
    if (mySearchResults.getEditor() == null) return;
    final SelectionModel selectionModel = mySearchResults.getEditor().getSelectionModel();
    int[] starts = selectionModel.getBlockSelectionStarts();
    int[] ends = selectionModel.getBlockSelectionEnds();

    final HashSet<RangeHighlighter> toRemove = new HashSet<RangeHighlighter>();
    Set<RangeHighlighter> toAdd = new HashSet<RangeHighlighter>();
    for (RangeHighlighter highlighter : myHighlighters) {
      boolean intersectsWithSelection = false;
      for (int i = 0; i < starts.length; ++i) {
        TextRange selectionRange = new TextRange(starts[i], ends[i]);
        intersectsWithSelection =
            selectionRange.intersects(highlighter.getStartOffset(), highlighter.getEndOffset())
                && selectionRange.getEndOffset() != highlighter.getStartOffset()
                && highlighter.getEndOffset() != selectionRange.getStartOffset();
        if (intersectsWithSelection) break;
      }

      final Object userData = highlighter.getUserData(IN_SELECTION_KEY);
      if (userData != null) {
        if (!intersectsWithSelection) {
          if (userData == IN_SELECTION2) {
            HighlightManager.getInstance(mySearchResults.getProject())
                .removeSegmentHighlighter(mySearchResults.getEditor(), highlighter);
            toRemove.add(highlighter);
          } else {
            highlighter.putUserData(IN_SELECTION_KEY, null);
          }
        }
      } else if (intersectsWithSelection) {
        TextRange cursor = mySearchResults.getCursor();
        if (cursor != null
            && highlighter.getStartOffset() == cursor.getStartOffset()
            && highlighter.getEndOffset() == cursor.getEndOffset()) continue;
        final RangeHighlighter toAnnotate =
            highlightRange(
                new TextRange(highlighter.getStartOffset(), highlighter.getEndOffset()),
                new TextAttributes(null, null, Color.WHITE, EffectType.ROUNDED_BOX, 0),
                toAdd);
        highlighter.putUserData(IN_SELECTION_KEY, IN_SELECTION1);
        toAnnotate.putUserData(IN_SELECTION_KEY, IN_SELECTION2);
      }
    }
    myHighlighters.removeAll(toRemove);
    myHighlighters.addAll(toAdd);
  }
 public void actionPerformed(ActionEvent e) {
   JGrid grid = (JGrid) e.getSource();
   if (!grid.hasFocus()) {
     CellEditor cellEditor = grid.getCurrentCellEditor();
     if (cellEditor != null && !cellEditor.stopCellEditing()) {
       return;
     }
     grid.requestFocus();
   }
   SelectionModel selectionModel = grid.getSelectionModel();
   int anchorRow = selectionModel.getAnchorRow();
   int anchorColumn = selectionModel.getAnchorColumn();
   grid.editCellAt(anchorRow, anchorColumn, null);
   Component editorComp = grid.getEditorComponent();
   if (editorComp != null) {
     editorComp.requestFocus();
   }
 }
  /**
   * Emulates pressing <code>Enter</code> at current caret position.
   *
   * @param editor target editor
   * @param project target project
   * @param shifts two-elements array which is expected to be filled with the following info: 1. The
   *     first element holds added lines number; 2. The second element holds added symbols number;
   */
  private static void emulateEnter(
      @NotNull final Editor editor, @NotNull Project project, int[] shifts) {
    final DataContext dataContext = prepareContext(editor.getComponent(), project);
    int caretOffset = editor.getCaretModel().getOffset();
    Document document = editor.getDocument();
    SelectionModel selectionModel = editor.getSelectionModel();
    int startSelectionOffset = 0;
    int endSelectionOffset = 0;
    boolean restoreSelection = selectionModel.hasSelection();
    if (restoreSelection) {
      startSelectionOffset = selectionModel.getSelectionStart();
      endSelectionOffset = selectionModel.getSelectionEnd();
      selectionModel.removeSelection();
    }
    int textLengthBeforeWrap = document.getTextLength();
    int lineCountBeforeWrap = document.getLineCount();

    DataManager.getInstance()
        .saveInDataContext(dataContext, WRAP_LONG_LINE_DURING_FORMATTING_IN_PROGRESS_KEY, true);
    CommandProcessor commandProcessor = CommandProcessor.getInstance();
    try {
      Runnable command =
          new Runnable() {
            @Override
            public void run() {
              EditorActionManager.getInstance()
                  .getActionHandler(IdeActions.ACTION_EDITOR_ENTER)
                  .execute(editor, dataContext);
            }
          };
      if (commandProcessor.getCurrentCommand() == null) {
        commandProcessor.executeCommand(editor.getProject(), command, WRAP_LINE_COMMAND_NAME, null);
      } else {
        command.run();
      }
    } finally {
      DataManager.getInstance()
          .saveInDataContext(dataContext, WRAP_LONG_LINE_DURING_FORMATTING_IN_PROGRESS_KEY, null);
    }
    int symbolsDiff = document.getTextLength() - textLengthBeforeWrap;
    if (restoreSelection) {
      int newSelectionStart = startSelectionOffset;
      int newSelectionEnd = endSelectionOffset;
      if (startSelectionOffset >= caretOffset) {
        newSelectionStart += symbolsDiff;
      }
      if (endSelectionOffset >= caretOffset) {
        newSelectionEnd += symbolsDiff;
      }
      selectionModel.setSelection(newSelectionStart, newSelectionEnd);
    }
    shifts[0] = document.getLineCount() - lineCountBeforeWrap;
    shifts[1] = symbolsDiff;
  }
  private void dumpEditorMarkupAndSelection(PrintStream dumpStream) {
    dumpStream.println(mySearchResults.getFindModel());
    if (myReplacementPreviewText != null) {
      dumpStream.println("--");
      dumpStream.println("Replacement Preview: " + myReplacementPreviewText);
    }
    dumpStream.println("--");

    Editor editor = mySearchResults.getEditor();

    RangeHighlighter[] highlighters = editor.getMarkupModel().getAllHighlighters();
    List<Pair<Integer, Character>> ranges = new ArrayList<Pair<Integer, Character>>();
    for (RangeHighlighter highlighter : highlighters) {
      ranges.add(new Pair<Integer, Character>(highlighter.getStartOffset(), '['));
      ranges.add(new Pair<Integer, Character>(highlighter.getEndOffset(), ']'));
    }

    SelectionModel selectionModel = editor.getSelectionModel();

    if (selectionModel.getSelectionStart() != selectionModel.getSelectionEnd()) {
      ranges.add(new Pair<Integer, Character>(selectionModel.getSelectionStart(), '<'));
      ranges.add(new Pair<Integer, Character>(selectionModel.getSelectionEnd(), '>'));
    }
    ranges.add(new Pair<Integer, Character>(-1, '\n'));
    ranges.add(new Pair<Integer, Character>(editor.getDocument().getTextLength() + 1, '\n'));
    ContainerUtil.sort(
        ranges,
        new Comparator<Pair<Integer, Character>>() {
          @Override
          public int compare(Pair<Integer, Character> pair, Pair<Integer, Character> pair2) {
            int res = pair.first - pair2.first;
            if (res == 0) {

              Character c1 = pair.second;
              Character c2 = pair2.second;
              if (c1 == '<' && c2 == '[') {
                return 1;
              } else if (c1 == '[' && c2 == '<') {
                return -1;
              }
              return c1.compareTo(c2);
            }
            return res;
          }
        });

    Document document = editor.getDocument();
    for (int i = 0; i < ranges.size() - 1; ++i) {
      Pair<Integer, Character> pair = ranges.get(i);
      Pair<Integer, Character> pair1 = ranges.get(i + 1);
      dumpStream.print(
          pair.second
              + document.getText(
                  TextRange.create(
                      Math.max(pair.first, 0), Math.min(pair1.first, document.getTextLength()))));
    }
    dumpStream.println("\n--");

    if (NotFound) {
      dumpStream.println("Not Found");
      dumpStream.println("--");
      NotFound = false;
    }

    for (RangeHighlighter highlighter : highlighters) {
      dumpStream.println(highlighter + " : " + highlighter.getTextAttributes());
    }
    dumpStream.println("------------");
  }
  @Nullable
  @Override
  public TextBlockTransferableData collectTransferableData(
      PsiFile file, Editor editor, int[] startOffsets, int[] endOffsets) {
    if (!Registry.is("editor.richcopy.enable")) {
      return null;
    }

    try {
      for (TextWithMarkupBuilder builder : myBuilders) {
        builder.reset();
      }
      SelectionModel selectionModel = editor.getSelectionModel();
      if (selectionModel.hasBlockSelection()) {
        return null; // unsupported legacy mode
      }

      RichCopySettings settings = RichCopySettings.getInstance();
      List<Caret> carets = editor.getCaretModel().getAllCarets();
      Caret firstCaret = carets.get(0);
      final int indentSymbolsToStrip;
      final int firstLineStartOffset;
      if (settings.isStripIndents() && carets.size() == 1) {
        Pair<Integer, Integer> p =
            calcIndentSymbolsToStrip(
                editor.getDocument(), firstCaret.getSelectionStart(), firstCaret.getSelectionEnd());
        firstLineStartOffset = p.first;
        indentSymbolsToStrip = p.second;
      } else {
        firstLineStartOffset = firstCaret.getSelectionStart();
        indentSymbolsToStrip = 0;
      }
      logInitial(editor, startOffsets, endOffsets, indentSymbolsToStrip, firstLineStartOffset);
      CharSequence text = editor.getDocument().getCharsSequence();
      EditorColorsScheme schemeToUse = settings.getColorsScheme(editor.getColorsScheme());
      EditorHighlighter highlighter =
          HighlighterFactory.createHighlighter(
              file.getVirtualFile(), schemeToUse, file.getProject());
      highlighter.setText(text);
      MarkupModel markupModel =
          DocumentMarkupModel.forDocument(editor.getDocument(), file.getProject(), false);
      Context context = new Context(text, schemeToUse, indentSymbolsToStrip);
      int shift = 0;
      int endOffset = 0;
      Caret prevCaret = null;

      for (Caret caret : carets) {
        int caretSelectionStart = caret.getSelectionStart();
        int caretSelectionEnd = caret.getSelectionEnd();
        int startOffsetToUse;
        if (caret == firstCaret) {
          startOffsetToUse = firstLineStartOffset;
        } else {
          startOffsetToUse = caretSelectionStart;
          assert prevCaret != null;
          String prevCaretSelectedText = prevCaret.getSelectedText();
          // Block selection fills short lines by white spaces.
          int fillStringLength =
              prevCaretSelectedText == null
                  ? 0
                  : prevCaretSelectedText.length()
                      - (prevCaret.getSelectionEnd() - prevCaret.getSelectionStart());
          int endLineOffset = endOffset + shift + fillStringLength;
          context.builder.addText(endLineOffset, endLineOffset + 1);
          shift++; // Block selection ends '\n' at line end
          shift += fillStringLength;
        }
        shift += endOffset - caretSelectionStart;
        endOffset = caretSelectionEnd;
        context.reset(shift);
        prevCaret = caret;
        if (endOffset <= startOffsetToUse) {
          continue;
        }
        MarkupIterator markupIterator =
            new MarkupIterator(
                text,
                new CompositeRangeIterator(
                    schemeToUse,
                    new HighlighterRangeIterator(highlighter, startOffsetToUse, endOffset),
                    new MarkupModelRangeIterator(
                        markupModel, schemeToUse, startOffsetToUse, endOffset)),
                schemeToUse);
        try {
          context.iterate(markupIterator, endOffset);
        } finally {
          markupIterator.dispose();
        }
      }
      SyntaxInfo syntaxInfo = context.finish();
      logSyntaxInfo(syntaxInfo);

      for (TextWithMarkupBuilder builder : myBuilders) {
        builder.build(syntaxInfo);
      }
    } catch (Exception e) {
      // catching the exception so that the rest of copy/paste functionality can still work fine
      LOG.error(e);
    }
    return null;
  }
  public void moveCaretRelatively(
      int columnShift,
      int lineShift,
      boolean withSelection,
      boolean blockSelection,
      boolean scrollToCaret) {
    assertIsDispatchThread();
    SelectionModel selectionModel = myEditor.getSelectionModel();
    int selectionStart = selectionModel.getLeadSelectionOffset();
    LogicalPosition blockSelectionStart =
        selectionModel.hasBlockSelection() ? selectionModel.getBlockStart() : getLogicalPosition();
    EditorSettings editorSettings = myEditor.getSettings();
    VisualPosition visualCaret = getVisualPosition();

    int desiredX = myDesiredX;
    if (columnShift == 0) {
      if (myDesiredX < 0) {
        desiredX = myEditor.visualPositionToXY(visualCaret).x;
      }
    } else {
      myDesiredX = desiredX = -1;
    }

    int newLineNumber = visualCaret.line + lineShift;
    int newColumnNumber = visualCaret.column + columnShift;
    if (desiredX >= 0 && !ApplicationManager.getApplication().isUnitTestMode()) {
      newColumnNumber =
          myEditor.xyToVisualPosition(
                  new Point(desiredX, Math.max(0, newLineNumber) * myEditor.getLineHeight()))
              .column;
    }

    Document document = myEditor.getDocument();
    if (!editorSettings.isVirtualSpace()
        && columnShift == 0
        && getLogicalPosition().softWrapLinesOnCurrentLogicalLine <= 0) {
      newColumnNumber = myEditor.getLastColumnNumber();
    } else if (!editorSettings.isVirtualSpace() && lineShift == 0 && columnShift == 1) {
      int lastLine = document.getLineCount() - 1;
      if (lastLine < 0) lastLine = 0;
      if (EditorModificationUtil.calcAfterLineEnd(myEditor) >= 0
          && newLineNumber
              < myEditor.logicalToVisualPosition(new LogicalPosition(lastLine, 0)).line) {
        newColumnNumber = 0;
        newLineNumber++;
      }
    } else if (!editorSettings.isVirtualSpace() && lineShift == 0 && columnShift == -1) {
      if (newColumnNumber < 0 && newLineNumber > 0) {
        newLineNumber--;
        newColumnNumber = EditorUtil.getLastVisualLineColumnNumber(myEditor, newLineNumber);
      }
    }

    if (newColumnNumber < 0) newColumnNumber = 0;

    // There is a possible case that caret is located at the first line and user presses 'Shift+Up'.
    // We want to select all text
    // from the document start to the current caret position then. So, we have a dedicated flag for
    // tracking that.
    boolean selectToDocumentStart = false;
    if (newLineNumber < 0) {
      selectToDocumentStart = true;
      newLineNumber = 0;

      // We want to move caret to the first column if it's already located at the first line and
      // 'Up' is pressed.
      newColumnNumber = 0;
      desiredX = -1;
    }

    VisualPosition pos = new VisualPosition(newLineNumber, newColumnNumber);
    int lastColumnNumber = newColumnNumber;
    if (!editorSettings.isCaretInsideTabs() && !myEditor.getSoftWrapModel().isInsideSoftWrap(pos)) {
      LogicalPosition log =
          myEditor.visualToLogicalPosition(new VisualPosition(newLineNumber, newColumnNumber));
      int offset = myEditor.logicalPositionToOffset(log);
      if (offset >= document.getTextLength()) {
        int lastOffsetColumn = myEditor.offsetToVisualPosition(document.getTextLength()).column;
        // We want to move caret to the last column if if it's located at the last line and 'Down'
        // is pressed.
        newColumnNumber = lastColumnNumber = Math.max(lastOffsetColumn, newColumnNumber);
        desiredX = -1;
      }
      CharSequence text = document.getCharsSequence();
      if (offset >= 0 && offset < document.getTextLength()) {
        if (text.charAt(offset) == '\t' && (columnShift <= 0 || offset == myOffset)) {
          if (columnShift <= 0) {
            newColumnNumber = myEditor.offsetToVisualPosition(offset).column;
          } else {
            SoftWrap softWrap = myEditor.getSoftWrapModel().getSoftWrap(offset + 1);
            // There is a possible case that tabulation symbol is the last document symbol
            // represented on a visual line before
            // soft wrap. We can't just use column from 'offset + 1' because it would point on a
            // next visual line.
            if (softWrap == null) {
              newColumnNumber = myEditor.offsetToVisualPosition(offset + 1).column;
            } else {
              newColumnNumber = EditorUtil.getLastVisualLineColumnNumber(myEditor, newLineNumber);
            }
          }
        }
      }
    }

    pos = new VisualPosition(newLineNumber, newColumnNumber);
    if (columnShift != 0 && lineShift == 0 && myEditor.getSoftWrapModel().isInsideSoftWrap(pos)) {
      LogicalPosition logical = myEditor.visualToLogicalPosition(pos);
      int softWrapOffset = myEditor.logicalPositionToOffset(logical);
      if (columnShift >= 0) {
        moveToOffset(softWrapOffset);
      } else {
        int line = myEditor.offsetToVisualLine(softWrapOffset - 1);
        moveToVisualPosition(
            new VisualPosition(line, EditorUtil.getLastVisualLineColumnNumber(myEditor, line)));
      }
    } else {
      moveToVisualPosition(pos);
      if (!editorSettings.isVirtualSpace() && columnShift == 0) {
        myEditor.setLastColumnNumber(lastColumnNumber);
      }
    }

    if (withSelection) {
      if (blockSelection) {
        selectionModel.setBlockSelection(blockSelectionStart, getLogicalPosition());
      } else {
        if (selectToDocumentStart) {
          selectionModel.setSelection(selectionStart, 0);
        } else if (pos.line >= myEditor.getVisibleLineCount()) {
          if (selectionStart < document.getTextLength()) {
            selectionModel.setSelection(selectionStart, document.getTextLength());
          }
        } else {
          selectionModel.setSelection(selectionStart, getVisualPosition(), getOffset());
        }
      }
    } else {
      selectionModel.removeSelection();
    }

    if (scrollToCaret) {
      myEditor.getScrollingModel().scrollToCaret(ScrollType.RELATIVE);
    }

    if (desiredX >= 0) {
      myDesiredX = desiredX;
    }

    EditorActionUtil.selectNonexpandableFold(myEditor);
  }