Roll Observatory packages and add a roll script

charted/lib/charts/cartesian_renderers/cartesian_base_renderer.dart

Index: charted/lib/charts/cartesian_renderers/cartesian_base_renderer.dart
diff --git a/charted/lib/charts/cartesian_renderers/cartesian_base_renderer.dart b/charted/lib/charts/cartesian_renderers/cartesian_base_renderer.dart
deleted file mode 100644
index 08d89176bf124e560d17a554e9964c583005fa7e..0000000000000000000000000000000000000000
--- a/charted/lib/charts/cartesian_renderers/cartesian_base_renderer.dart
+++ /dev/null
@@ -1,282 +0,0 @@
-/**
- * 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;
-
-abstract class CartesianRendererBase implements CartesianRenderer {
-  final SubscriptionsDisposer _disposer = new SubscriptionsDisposer();
-
-  CartesianArea area;
-  ChartSeries series;
-  ChartTheme theme;
-  ChartState state;
-  Rect rect;
-
-  List<int> _columnStateCache;
-  List<Iterable<String>> _columnStylesCache;
-
-  final _valueColorCache = new Map<int,String>();
-  final _valueFilterCache = new Map<int,String>();
-  final _valueStylesCache = new Map<int,Iterable<String>>();
-
-  Element host;
-  Selection root;
-  SelectionScope scope;
-
-  StreamController<ChartEvent> mouseOverController;
-  StreamController<ChartEvent> mouseOutController;
-  StreamController<ChartEvent> mouseClickController;
-
-  void _ensureAreaAndSeries(CartesianArea area, ChartSeries series) {
-    assert(area != null && series != null);
-    assert(this.area == null || this.area == area);
-    if (this.area == null) {
-      if (area.state != null) {
-        this.state = area.state;
-        _disposer.add(this.state.changes.listen((changes) {
-          resetStylesCache();
-          handleStateChanges(changes);
-        }));
-      }
-    }
-    this.area = area;
-    this.series = series;
-  }
-
-  void _ensureReadyToDraw(Element element) {
-    assert(series != null && area != null);
-    assert(element != null && element is GElement);
-
-    if (scope == null) {
-      host = element;
-      scope = new SelectionScope.element(element);
-      root = scope.selectElements([host]);
-    }
-
-    theme = area.theme;
-    rect = area.layout.renderArea;
-    resetStylesCache();
-  }
-
-  void resetStylesCache() {
-    var length = area.data.columns.length;
-    _columnStylesCache = new List(length);
-    _columnStateCache = new List(length);
-    _valueStylesCache.clear();
-    _valueColorCache.clear();
-    _valueFilterCache.clear();
-    _computeColumnStates();
-  }
-
-  /// Override this method to handle state changes.
-  void handleStateChanges(List<ChangeRecord> changes);
-
-  @override
-  Extent get extent {
-    assert(series != null && area != null);
-    var rows = area.data.rows,
-        measures = series.measures,
-        max = SMALL_INT_MIN,
-        min = SMALL_INT_MAX;
-
-    for (int i = 0, len = rows.length; i < len; ++i) {
-      var row = rows.elementAt(i);
-      for (int j = 0, jLen = measures.length; j < jLen; ++j) {
-        var value = row.elementAt(measures.elementAt(j));
-        if (value != null && value.isFinite) {
-          if (value > max) {
-            max = value;
-          } else if (value < min) {
-            min = value;
-          }
-        }
-      }
-    }
-    return new Extent(min, max);
-  }
-
-  @override
-  Extent extentForRow(Iterable row) {
-    assert(series != null && area != null);
-    var measures = series.measures,
-        max = SMALL_INT_MIN,
-        min = SMALL_INT_MAX;
-
-    for (int i = 0, len = measures.length;  i < len; ++i) {
-      var measure = measures.elementAt(i),
-          value = row.elementAt(measure);
-      if (value != null && value.isFinite) {
-        if (value > max) {
-          max = value;
-        } else if (value < min) {
-          min = value;
-        }
-      }
-    }
-    return new Extent(min, max);
-  }
-
-  @override
-  Stream<ChartEvent> get onValueMouseOver {
-    if (mouseOverController == null) {
-      mouseOverController = new StreamController.broadcast(sync: true);
-    }
-    return mouseOverController.stream;
-  }
-
-  @override
-  Stream<ChartEvent> get onValueMouseOut {
-    if (mouseOutController == null) {
-      mouseOutController = new StreamController.broadcast(sync: true);
-    }
-    return mouseOutController.stream;
-  }
-
-  @override
-  Stream<ChartEvent> get onValueClick {
-    if (mouseClickController == null) {
-      mouseClickController = new StreamController.broadcast(sync: true);
-    }
-    return mouseClickController.stream;
-  }
-
-  double get bandInnerPadding => 1.0;
-  double get bandOuterPadding =>
-      area.theme.getDimensionAxisTheme().axisOuterPadding;
-
-  void _computeColumnStates() {
-    area.config.series.forEach((ChartSeries series) {
-      series.measures.forEach((int column) {
-        if (_columnStateCache[column] != null) return;
-        int flags = 0;
-        if (state != null && area.useRowColoring == false) {
-          if (state.highlights.isNotEmpty) {
-            flags |= (state.highlights.any((x) => x.first == column)
-                ? ChartState.COL_HIGHLIGHTED
-                : ChartState.COL_UNHIGHLIGHTED);
-          }
-          if (state.selection.isNotEmpty) {
-            flags |= (state.isSelected(column)
-                ? ChartState.COL_SELECTED
-                : ChartState.COL_UNSELECTED);
-          }
-          if (!state.isVisible(column)) {
-            flags |= ChartState.COL_HIDDEN;
-          }
-          if (state.preview == column) {
-            flags |= ChartState.COL_PREVIEW;
-          }
-          if (state.hovered != null && state.hovered.first == column) {
-            flags |= ChartState.COL_HOVERED;
-          }
-        }
-        _columnStateCache[column] = flags;
-      });
-    });
-  }
-
-  Iterable<String> stylesForColumn(int column) {
-    if (_columnStylesCache[column] == null) {
-      if (state == null || area.useRowColoring) {
-        _columnStylesCache[column] = const[];
-      } else {
-        var styles = [],
-            flags = _columnStateCache[column];
-
-        if (flags & ChartState.COL_SELECTED != 0) {
-          styles.add(ChartState.COL_SELECTED_CLASS);
-        } else if (flags & ChartState.COL_UNSELECTED != 0){
-          styles.add(ChartState.COL_UNSELECTED_CLASS);
-        }
-
-        if (flags & ChartState.COL_HIGHLIGHTED != 0) {
-          styles.add(ChartState.COL_HIGHLIGHTED_CLASS);
-        } else if (flags & ChartState.COL_UNHIGHLIGHTED != 0) {
-          styles.add(ChartState.COL_UNHIGHLIGHTED_CLASS);
-        }
-
-        if (flags & ChartState.COL_HOVERED != 0) {
-          styles.add(ChartState.COL_HOVERED_CLASS);
-        }
-        if (flags & ChartState.COL_PREVIEW != 0) {
-          styles.add(ChartState.COL_PREVIEW_CLASS);
-        }
-        if (flags & ChartState.COL_HIDDEN != 0) {
-          styles.add(ChartState.COL_HIDDEN_CLASS);
-        }
-
-        _columnStylesCache[column] = styles;
-      }
-    }
-    return _columnStylesCache[column];
-  }
-
-  String colorForColumn(int column) =>
-      theme.getColorForKey(column, _columnStateCache[column]);
-
-  String filterForColumn(int column) =>
-      theme.getFilterForState(_columnStateCache[column]);
-
-  Iterable<String> stylesForValue(int column, int row) {
-    var hash = hash2(column, row);
-    if (_valueStylesCache[hash] == null) {
-      if (state == null) {
-        _valueStylesCache[hash] = const[];
-      } else {
-        var styles = stylesForColumn(column).toList();
-        if (state.highlights.isNotEmpty) {
-          styles.add(state.highlights.any((x) => x.last == row)
-              ? ChartState.VAL_HIGHLIGHTED_CLASS
-              : ChartState.VAL_UNHIGHLIGHTED_CLASS);
-        }
-        if (state.hovered != null && state.hovered.last == row) {
-          styles.add(ChartState.VAL_HOVERED_CLASS);
-        }
-        _valueStylesCache[hash] = styles;
-      }
-    }
-    return _valueStylesCache[hash];
-  }
-
-  String colorForValue(int column, int row) {
-    var hash = hash2(column, row);
-    if (_valueColorCache[hash] == null) {
-      _cacheColorsAndFilter(hash, column, row);
-    }
-    return _valueColorCache[hash];
-  }
-
-  String filterForValue(int column, int row) {
-    var hash = hash2(column, row);
-    if (_valueFilterCache[hash] == null) {
-      _cacheColorsAndFilter(hash, column, row);
-    }
-    return _valueFilterCache[hash];
-  }
-
-  _cacheColorsAndFilter(int hash, int column, int row) {
-    if (state == null) {
-      _valueColorCache[hash] =
-          theme.getColorForKey(area.useRowColoring ? row : column);
-      _valueFilterCache[hash] = theme.getFilterForState(0);
-    } else {
-      var flags = _columnStateCache[column];
-      if (state.highlights.isNotEmpty) {
-        flags |= (state.highlights.any((x) => x.last == row)
-        ? ChartState.VAL_HIGHLIGHTED
-        : ChartState.VAL_UNHIGHLIGHTED);
-      }
-      if (state.hovered != null && state.hovered.last == row) {
-        flags |= ChartState.VAL_HOVERED;
-      }
-      _valueColorCache[hash] =
-          theme.getColorForKey(area.useRowColoring ? row : column, flags);
-      _valueFilterCache[hash] = theme.getFilterForState(flags);
-    }
-  }
-}