Roll Observatory packages and add a roll script

charted/lib/charts/src/chart_axis_impl.dart

Index: charted/lib/charts/src/chart_axis_impl.dart
diff --git a/charted/lib/charts/src/chart_axis_impl.dart b/charted/lib/charts/src/chart_axis_impl.dart
deleted file mode 100644
index 3f5d12d8259d3c6207a1cfe920b4c39bfdb7b682..0000000000000000000000000000000000000000
--- a/charted/lib/charts/src/chart_axis_impl.dart
+++ /dev/null
@@ -1,206 +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;
-
-class DefaultChartAxisImpl {
-  CartesianArea _area;
-  ChartAxisConfig _config;
-  ChartAxisTheme _theme;
-  SvgAxisTicks _axisTicksPlacement;
-
-  int _column;
-  bool _isDimension;
-  ChartColumnSpec _columnSpec;
-
-  bool _isVertical;
-  String _orientation;
-  Scale _scale;
-  SelectionScope _scope;
-
-  MutableRect size;
-
-  DefaultChartAxisImpl.withAxisConfig(this._area, this._config);
-  DefaultChartAxisImpl(this._area);
-
-  void initAxisDomain(int column, bool isDimension, Iterable domain) {
-    _columnSpec = _area.data.columns.elementAt(column);
-    _column = column;
-    _isDimension = isDimension;
-
-    // If we don't have a scale yet, create one.
-    if (scale == null) {
-      _scale = _columnSpec.createDefaultScale();
-    }
-
-    // We have the scale, get theme.
-    _theme = isDimension
-        ? _area.theme.getDimensionAxisTheme(scale)
-        : _area.theme.getMeasureAxisTheme(scale);
-
-    // Sets the domain if not using a custom scale.
-    if (_config == null || (_config != null && _config.scale == null)) {
-      scale.domain = domain;
-      scale.nice = !_isDimension;
-    }
-  }
-
-  void initAxisScale(Iterable range) {
-    assert(scale != null);
-    if (scale is OrdinalScale) {
-      var usingBands = _area.dimensionsUsingBands.contains(_column),
-          innerPadding = usingBands ? _theme.axisBandInnerPadding : 1.0,
-          outerPadding = usingBands ?
-              _theme.axisBandOuterPadding : _theme.axisOuterPadding;
-
-      // This is because when left axis is primary the first data row should
-      // appear on top of the y-axis instead of on bottom.
-      if (_area.config.isLeftAxisPrimary) {
-        range = range.toList().reversed;
-      }
-      (scale as OrdinalScale).
-          rangeRoundBands(range, innerPadding, outerPadding);
-    } else {
-      scale.range = range;
-      scale.ticksCount = _theme.axisTickCount;
-    }
-  }
-
-  void prepareToDraw(String orientation) {
-    if (orientation == null) orientation = ORIENTATION_BOTTOM;
-    _orientation = orientation;
-    _isVertical =
-        _orientation == ORIENTATION_LEFT || _orientation == ORIENTATION_RIGHT;
-
-    var layout = _area.layout.chartArea;
-    size = _isVertical
-        ? new MutableRect.size(_theme.verticalAxisWidth, layout.width)
-        : new MutableRect.size(layout.height, _theme.horizontalAxisHeight);
-
-    // Handle auto re-sizing of horizontal axis.
-    if (_isVertical) {
-      var ticks = (_config != null && !isNullOrEmpty(_config.tickValues))
-              ? _config.tickValues
-              : scale.ticks,
-          formatter = _columnSpec.formatter == null
-              ? scale.createTickFormatter()
-              : _columnSpec.formatter,
-          textMetrics = new TextMetrics(fontStyle: _theme.ticksFont),
-          formattedTicks = ticks.map((x) => formatter(x)).toList(),
-          shortenedTicks = formattedTicks;
-
-      var width = textMetrics.getLongestTextWidth(formattedTicks).ceil();
-      if (width > _theme.verticalAxisWidth) {
-        width = _theme.verticalAxisWidth;
-        shortenedTicks = formattedTicks.map(
-            (x) => textMetrics.ellipsizeText(x, width)).toList();
-      }
-      if (_theme.verticalAxisAutoResize) {
-        size.width =
-            width + _theme.axisTickPadding + math.max(_theme.axisTickSize, 0);
-      }
-      _axisTicksPlacement =
-          new PrecomputedAxisTicks(ticks, formattedTicks, shortenedTicks);
-    }
-  }
-
-  void draw(Element element, SelectionScope scope, {bool preRender: false}) {
-    assert(element != null && element is GElement);
-    assert(scale != null);
-
-    var rect = _area.layout.axes[_orientation],
-        renderAreaRect = _area.layout.renderArea,
-        range =  _isVertical ? [rect.height, 0] : [0, rect.width],
-        innerTickSize = _theme.axisTickSize <= ChartAxisTheme.FILL_RENDER_AREA
-            ? 0 - (_isVertical ? renderAreaRect.width : renderAreaRect.height)
-            : _theme.axisTickSize,
-        tickValues = _config != null && !isNullOrEmpty(_config.tickValues)
-            ? _config.tickValues
-            : null;
-
-    element.attributes['transform'] = 'translate(${rect.x}, ${rect.y})';
-
-    if (!_isVertical) {
-      _axisTicksPlacement =
-          new RotateHorizontalAxisTicks(rect,
-              _theme.ticksFont, _theme.axisTickSize + _theme.axisTickPadding);
-    }
-
-    initAxisScale(range);
-    var axis = new SvgAxis(orientation: _orientation,
-        innerTickSize: innerTickSize, outerTickSize: 0,
-        tickPadding: _theme.axisTickPadding,
-        tickFormat: _columnSpec.formatter, tickValues: tickValues,
-        scale: scale);
-
-    axis.create(element, scope,
-        axisTicksBuilder: _axisTicksPlacement, isRTL: _area.config.isRTL);
-  }
-
-  void clear() {
-  }
-
-  // Scale passed through configuration takes precedence
-  Scale get scale =>
-      (_config != null && _config.scale != null) ? _config.scale : _scale;
-
-  set scale(Scale value) => _scale = value;
-}
-
-class PrecomputedAxisTicks implements SvgAxisTicks {
-  final int rotation = 0;
-  final Iterable ticks;
-  final Iterable formattedTicks;
-  final Iterable shortenedTicks;
-  const PrecomputedAxisTicks(
-      this.ticks, this.formattedTicks, this.shortenedTicks);
-  void init(SvgAxis axis) {}
-}
-
-class RotateHorizontalAxisTicks implements SvgAxisTicks {
-  final Rect rect;
-  final String ticksFont;
-  final int tickLineLength;
-
-  int rotation = 0;
-  Iterable ticks;
-  Iterable formattedTicks;
-  Iterable shortenedTicks;
-
-  RotateHorizontalAxisTicks(this.rect, this.ticksFont, this.tickLineLength);
-
-  void init(SvgAxis axis) {
-    assert(
-        axis.orientation == ORIENTATION_BOTTOM ||
-        axis.orientation == ORIENTATION_TOP);
-    assert(ticksFont != null);
-    ticks = axis.tickValues;
-    formattedTicks = ticks.map((x) => axis.tickFormat(x)).toList();
-    shortenedTicks = formattedTicks;
-
-    var range = axis.scale.rangeExtent,
-        textMetrics = new TextMetrics(fontStyle: ticksFont),
-        allowedWidth = (range.max - range.min) ~/ ticks.length,
-        maxLabelWidth = textMetrics.getLongestTextWidth(formattedTicks);
-
-    // Check if we need rotation
-    if (0.90 * allowedWidth < maxLabelWidth) {
-      var rectHeight = tickLineLength > 0
-          ? rect.height - tickLineLength
-          : rect.height;
-      rotation = 45;
-
-      // Check if we have enough space to render full chart
-      allowedWidth = (1.4142 * (rectHeight)) - (textMetrics.fontSize / 1.4142);
-      if (maxLabelWidth > allowedWidth) {
-        shortenedTicks = formattedTicks.map(
-            (x) => textMetrics.ellipsizeText(x, allowedWidth)).toList();
-      }
-    }
-  }
-}