Roll Observatory packages and add a roll script

charted/lib/charts/chart_state.dart

Index: charted/lib/charts/chart_state.dart
diff --git a/charted/lib/charts/chart_state.dart b/charted/lib/charts/chart_state.dart
deleted file mode 100644
index d807677fed8741c6718aea035a7479cac7f16bc3..0000000000000000000000000000000000000000
--- a/charted/lib/charts/chart_state.dart
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-//
-// Copyright 2014 Google Inc. All rights reserved.
-//
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file or at
-// https://developers.google.com/open-source/licenses/bsd
-//
-
-part of charted.charts;
-
-///
-/// Model to provide highlight, selection and visibility in a ChartArea.
-/// Selection and visibility
-///
-abstract class ChartState implements ChangeNotifier {
-  static int COL_SELECTED       = 0x001;
-  static int COL_UNSELECTED     = 0x002;
-  static int COL_PREVIEW        = 0x004;
-  static int COL_HIDDEN         = 0x008;
-  static int COL_HIGHLIGHTED    = 0x010;
-  static int COL_UNHIGHLIGHTED  = 0x020;
-  static int COL_HOVERED        = 0x040;
-  static int VAL_HIGHLIGHTED    = 0x080;
-  static int VAL_UNHIGHLIGHTED  = 0x100;
-  static int VAL_HOVERED        = 0x200;
-
-  static const COL_SELECTED_CLASS       = 'col-selected';
-  static const COL_UNSELECTED_CLASS     = 'col-unselected';
-  static const COL_PREVIEW_CLASS        = 'col-previewed';
-  static const COL_HIDDEN_CLASS         = 'col-hidden';
-  static const COL_HIGHLIGHTED_CLASS    = 'col-highlighted';
-  static const COL_UNHIGHLIGHTED_CLASS  = 'col-unhighlighted';
-  static const COL_HOVERED_CLASS        = 'col-hovered';
-  static const VAL_HIGHLIGHTED_CLASS    = 'row-highlighted';
-  static const VAL_UNHIGHLIGHTED_CLASS  = 'row-unhighlighted';
-  static const VAL_HOVERED_CLASS        = 'row-hovered';
-
-  static const COLUMN_CLASS_NAMES = const[
-    COL_SELECTED_CLASS, COL_UNSELECTED_CLASS, COL_PREVIEW_CLASS,
-    COL_HIGHLIGHTED_CLASS, COL_UNHIGHLIGHTED_CLASS, COL_HIDDEN_CLASS,
-    COL_HOVERED_CLASS];
-
-  static const VALUE_CLASS_NAMES = const[
-    COL_SELECTED_CLASS, COL_UNSELECTED_CLASS, COL_PREVIEW_CLASS,
-    COL_HIGHLIGHTED_CLASS, COL_UNHIGHLIGHTED_CLASS, COL_HIDDEN_CLASS,
-    COL_HOVERED_CLASS, VAL_HIGHLIGHTED_CLASS, VAL_UNHIGHLIGHTED_CLASS,
-    VAL_HOVERED_CLASS];
-
-  /// List of selected items.
-  /// - Contains a column on CartesianArea if useRowColoring is false.
-  /// - Row index in all other cases.
-  Iterable<int> get selection;
-
-  /// List of visible items.
-  /// - Contains a column on CartesianArea if useRowColoring is false.
-  /// - Row index in all other cases.
-  Iterable<int> get hidden;
-
-  /// Currently previewed row or column. Hidden items can be previewed
-  /// by hovering on the corresponding label in Legend
-  /// - Contains a column on CartesianArea if useRowColoring is false.
-  /// - Row index in all other cases.
-  int preview;
-
-  /// Currently highlighted value, if any, represented as column and row.
-  /// Highlight is result of a click on certain value.
-  Iterable<Pair<int,int>> highlights;
-
-  /// Currently hovered value, if any, represented as column and row.
-  /// Hover is result of mouse moving over a certian value in chart.
-  Pair<int,int> hovered;
-
-  /// Ensure that a row or column is visible.
-  bool unhide(int id);
-
-  /// Ensure that a row or column is invisible.
-  bool hide(int id);
-
-  /// Returns current visibility of a row or column.
-  bool isVisible(int id);
-
-  /// Select a row or column.
-  bool select(int id);
-
-  /// Unselect a row or column.
-  bool unselect(int id);
-
-  /// Returns current selection state of a row or column.
-  bool isSelected(int id);
-
-  /// Select a row or column.
-  bool highlight(int column, int row);
-
-  /// Unselect a row or column.
-  bool unhighlight(int column, int row);
-
-  /// Returns current selection state of a row or column.
-  bool isHighlighted(int column, int row);
-
-  factory ChartState({bool isMultiSelect: false}) =>
-      new DefaultChartStateImpl(isMultiSelect: isMultiSelect);
-}
-
-///
-/// Implementation of [ChangeRecord], that is used to notify changes to
-/// values in [ChartData].
-///
-class ChartSelectionChangeRecord implements ChangeRecord {
-  final int add;
-  final int remove;
-  const ChartSelectionChangeRecord({this.add, this.remove});
-}
-
-///
-/// Implementation of [ChangeRecord], that is used to notify changes to
-/// values in [ChartData].
-///
-class ChartVisibilityChangeRecord implements ChangeRecord {
-  final int unhide;
-  final int hide;
-  const ChartVisibilityChangeRecord({this.unhide, this.hide});
-}
-
-///
-/// Implementation of [ChangeRecord], that is used to notify changes to
-/// values in [ChartData].
-///
-class ChartHighlightChangeRecord implements ChangeRecord {
-  final Pair<int,int> remove;
-  final Pair<int,int> add;
-  const ChartHighlightChangeRecord({this.add, this.remove});
-}
-
-///
-/// Implementation of [ChangeRecord], that is used to notify changes to
-/// values in [ChartData].
-///
-class ChartHoverChangeRecord implements ChangeRecord {
-  final Pair<int,int> hovered;
-  const ChartHoverChangeRecord(this.hovered);
-}
-
-///
-/// Implementation of [ChangeRecord], that is used to notify changes to
-/// values in [ChartData].
-///
-class ChartPreviewChangeRecord implements ChangeRecord {
-  final int previewed;
-  const ChartPreviewChangeRecord(this.previewed);
-}