Delete proxy and total samples, which have bit-rotted.

samples/total/client/Command.dart

-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-/**
- * The base class for commands that may be placed on the undo/redo stack.
- */
-class Command {
-
-  String _description;
-  Spreadsheet _spreadsheet;
-
-  String get description() => _description;
-
-  /**
-   * Constructs a new command on a given spreadsheet.
-   *
-   * The description is currently used for logging during undo/redo events.
-   */
-  Command(this._spreadsheet, this._description) { }
-
-  /**
-   * Perform the action associated with this command.
-   */
-  void execute() {
-    throw new NotImplementedException();
-  }
-
-  String toString() => "Command[${_description}]";
-
-  /**
-   * Undo the action.
-   *
-   * This method should reverse any operation done during [execute()].
-   */
-  void unexecute() {
-    throw new NotImplementedException();
-  }
-}
-
-/**
- * The command for inserting a block of cells and shifting down.
- */
-class InsertBlockAndShiftDownCommand extends Command {
-
-  RowCol _maxCorner;
-  RowCol _minCorner;
-
-  /**
-   * Create a new command.
-   *
-   * [minCorner] is the top left corner of the block to insert, while [maxCorner] is the
-   * bottom right corner. The shifted block includes both corners.
-   */
-  InsertBlockAndShiftDownCommand(Spreadsheet spreadsheet, this._minCorner, this._maxCorner)
-      : super(spreadsheet, "Insert/Shift Down") { }
-
-  void execute() {
-    _spreadsheet.insertBlockAndShiftDown(_minCorner, _maxCorner);
-  }
-
-  void unexecute() {
-    _spreadsheet.removeBlockAndShiftUp(_minCorner, _maxCorner);
-  }
-}
-
-/**
- * The command for inserting a block of cells and shifting right.
- */
-class InsertBlockAndShiftRightCommand extends Command {
-
-  RowCol _maxCorner;
-  RowCol _minCorner;
-
-  /**
-   * Create a new command.
-   *
-   * [minCorner] is the top left corner of the block to insert, while [maxCorner] is the
-   * bottom right corner. The shifted block includes both corners.
-   */
-  InsertBlockAndShiftRightCommand(Spreadsheet spreadsheet, this._minCorner, this._maxCorner)
-      : super(spreadsheet, "Insert/Shift Right") { }
-
-  void execute() {
-    _spreadsheet.insertBlockAndShiftRight(_minCorner, _maxCorner);
-  }
-
-  void unexecute() {
-    _spreadsheet.removeBlockAndShiftLeft(_minCorner, _maxCorner);
-  }
-}
-
-/**
- * The command for inserting columns into the spreadsheet.
- */
-class InsertColumnsCommand extends Command {
-
-  int _maxColumn;
-  int _minColumn;
-
-  /**
-   * Create a new command.
-   *
-   * [minColumn] is the leftmost column of the block to insert, while [maxColumn] is the rightmost
-   * column to be inserted.
-   */
-  InsertColumnsCommand(Spreadsheet spreadsheet, this._minColumn, this._maxColumn)
-      : super(spreadsheet, "Insert Columns") { }
-
-  void execute() {
-    _spreadsheet.insertColumns(_minColumn, _maxColumn);
-  }
-
-  void unexecute() {
-    _spreadsheet.removeColumns(_minColumn, _maxColumn);
-  }
-}
-
-/**
- * The command for inserting rows into the spreadsheet.
- */
-class InsertRowsCommand extends Command {
-
-  int _maxRow;
-  int _minRow;
-
-  /**
-   * Create a new command.
-   *
-   * [minRow] is the topmost row of the block to insert, while [maxRow] is the bottommost
-   * row to be inserted.
-   */
-  InsertRowsCommand(Spreadsheet spreadsheet, this._minRow, this._maxRow)
-      : super(spreadsheet, "Insert Rows") { }
-
-  void execute() {
-    _spreadsheet.insertRows(_minRow, _maxRow);
-  }
-
-  void unexecute() {
-    _spreadsheet.removeRows(_minRow, _maxRow);
-  }
-}
-
-/**
- * The command to reset the row and column sizes.
- */
-class ResetRowColumnSizesCommand extends Command {
-
-  List<List<int>> _rowColumnSizes;
-
-  ResetRowColumnSizesCommand(Spreadsheet spreadsheet)
-      : super(spreadsheet, "Reset Row/Column Sizes") {
-    _rowColumnSizes = _spreadsheet.layout.getRowColumnSizes();
-  }
-
-  void execute() {
-    _spreadsheet.layout.resetSizes();
-  }
-
-  void unexecute() {
-    _spreadsheet.layout.setRowColumnSizes(_rowColumnSizes);
-  }
-}
-
-/**
- * The command to resize a row or column.
- */
-class ResizeRowColumnCommand extends Command {
-
-  int _index;
-  int _oldSize;
-  int _rowOrCol;
-  int _size;
-
-  /**
-   * Create a new command.
-   *
-   * rowOrCol indicates which of a row or column we are resizing. Index indicates which
-   * row or column. Size is the new size and oldSize is the former size.
-   */
-  ResizeRowColumnCommand(Spreadsheet spreadsheet, this._rowOrCol, this._index, this._size,
-      this._oldSize) : super(spreadsheet, "Resize Row/Column") { }
-
-  void execute() {
-    if (_rowOrCol == Spreadsheet.COL) {
-      _spreadsheet.setColumnWidth(_index, _size);
-    } else {
-      _spreadsheet.setRowHeight(_index, _size);
-    }
-  }
-
-  void unexecute() {
-    if (_rowOrCol == Spreadsheet.COL) {
-      _spreadsheet.setColumnWidth(_index, _oldSize);
-    } else {
-      _spreadsheet.setRowHeight(_index, _oldSize);
-    }
-  }
-}
-
-/**
- * A command to set the content of a single cell, in string form.
- */
-class SetCellContentsCommand extends Command {
-
-  String _content;
-  String _oldContent;
-  RowCol _rowCol;
-  Style _style;
-
-  /**
-   * Create a new command, given the new content for the cell.
-   */
-  SetCellContentsCommand(CellLocation location, this._content)
-      : super(location.spreadsheet, "Set Cell Content") {
-    _rowCol = location.rowCol;
-    Cell oldCell = location.getCell();
-    if (oldCell == null) {
-      _oldContent = null;
-    } else {
-      _oldContent = oldCell.getContentString();
-    }
-  }
-
-  void execute() {
-    _spreadsheet.setCellFromContentString(_rowCol, _content);
-    _spreadsheet.markDirty(_rowCol);
-  }
-
-  void unexecute() {
-    String rowColString = _rowCol.toString();
-    if (_oldContent == null) {
-      _spreadsheet.setCellContent(_rowCol, null);
-    } else {
-      _spreadsheet.setCellFromContentString(_rowCol, _oldContent);
-    }
-    _spreadsheet.markDirty(_rowCol);
-  }
-}
-
-/**
- * A type for the action method used to set style properties.
- */
-typedef Style SetStyleFunction(Style s, int index);
-
-/**
- * A command to set the style of a range of cells.
- */
-class SetStyleCommand extends Command {
-
-  SetStyleFunction _action;
-  CellRange _cellRange;
-  int _index;
-  List<UndoableAction> _oldCellStyles;
-
-  /**
-   * Create a new command.
-   *
-   * [cellRange] is the range of cells to apply the style change to. [index] is passed to the
-   * action function, allowing a single action to be used for multiple properties. [action] is
-   * the function to apply to the range.
-   */
-  SetStyleCommand(CellRange cellRange, this._index, this._action) : super(cellRange.spreadsheet,
-      "Set Style") {
-    _cellRange = cellRange;
-  }
-
-  void execute() {
-    _spreadsheet.clearDirtyCells();
-    _oldCellStyles = new List<UndoableAction>();
-    _spreadsheet.trackDeltas(_oldCellStyles);
-
-    bool isSheet = _cellRange.isSheetSelection();
-    bool isCol = _cellRange.isColumnSelection();
-    bool isRow = _cellRange.isRowSelection();
-    RowColStyle s;
-    if (isSheet) {
-      s = _spreadsheet.getSheetStyle();
-      _spreadsheet.setSheetStyle(_updateStyle(s));
-    } else if (isRow) {
-      for (int row = _cellRange.minCorner.row; row <= _cellRange.maxCorner.row; row++) {
-        s = _spreadsheet.getRowStyle(row);
-        _spreadsheet.setRowStyle(row, _updateStyle(s));
-      }
-    } else if (isCol) {
-      for (int col = _cellRange.minCorner.col; col <= _cellRange.maxCorner.col; col++) {
-        s = _spreadsheet.getColumnStyle(col);
-        _spreadsheet.setColumnStyle(col, _updateStyle(s));
-      }
-    }
-
-    // Perform the action the intersection between the range and the active area
-    CellRange range = _cellRange.makeBounded();
-    _cellRange.forEach((CellLocation location) {
-      Cell c = location.getCell();
-      // Don't force cell creation for whole row/col selection
-      if (c == null && !isCol && !isRow) {
-        Style newStyle = _action(new Style(), _index);
-        location.spreadsheet.setCellStyle(location.rowCol, newStyle);
-      }
-      if (c != null) {
-        Style newStyle = _action(c.style, _index);
-        location.spreadsheet.setCellStyle(location.rowCol, newStyle);
-      }
-    });
-  }
-
-  void unexecute() {
-    _spreadsheet.clearDirtyCells();
-    int count = _oldCellStyles.length;
-    for (int i = count - 1; i >= 0; --i) {
-      _oldCellStyles[i].undoAction(_spreadsheet);
-    };
-    _oldCellStyles = null;
-  }
-
-  // Return a RowColStyle that is the result of performing the style setting action on
-  // an existing RowColStyle.
-  RowColStyle _updateStyle(RowColStyle s) {
-    Style oldStyle = s == null ? new Style() : s.style;
-    // Perform the style setting action
-    Style newStyle = _action(oldStyle, _index);
-    RowColStyle newRCStyle = new RowColStyle(newStyle);
-    return newRCStyle;
-  }
-}