charted/lib/charts/src/chart_config_impl.dart - Issue 1400473008: Roll Observatory packages and add a roll script

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Issue 1400473008: Roll Observatory packages and add a roll script (Closed) Base URL: git@github.com:dart-lang/observatory_pub_packages.git@master

Patch Set: Created 5 years, 2 months ago

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1 //

2 // Copyright 2014 Google Inc. All rights reserved.

3 //

4 // Use of this source code is governed by a BSD-style

5 // license that can be found in the LICENSE file or at

6 // https://developers.google.com/open-source/licenses/bsd

7 //

8

9 part of charted.charts;

10

11 class DefaultChartConfigImpl extends ChangeNotifier implements ChartConfig {

12 final Map<String,ChartAxisConfig> _measureAxisRegistry = {};

13 final Map<int,ChartAxisConfig> _dimensionAxisRegistry = {};

14 final SubscriptionsDisposer _disposer = new SubscriptionsDisposer();

15

16 bool _isRTL = false;

17 Iterable<ChartSeries> _series;

18 Iterable<int> _dimensions;

19 StreamSubscription _dimensionsSubscription;

20

21 @override

22 Rect minimumSize = const Rect.size(400, 300);

23

24 @override

25 bool isLeftAxisPrimary = false;

26

27 @override

28 bool autoResizeAxis = true;

29

30 @override

31 ChartLegend legend;

32

33 @override

34 Iterable<String> displayedMeasureAxes;

35

36 @override

37 bool renderDimensionAxes = true;

38

39 @override

40 bool switchAxesForRTL = true;

41

42 DefaultChartConfigImpl(Iterable<ChartSeries> series, Iterable<int> dimensions) {

43 this.series = series;

44 this.dimensions = dimensions;

45 }

46

47 @override

48 set series(Iterable<ChartSeries> values) {

49 assert(values != null && values.isNotEmpty);

50

51 _disposer.dispose();

52 _series = values;

53 notifyChange(const ChartConfigChangeRecord());

54

55 // Monitor each series for changes on them

56 values.forEach((item) {

57 if (item is Observable) {

58 _disposer.add(item.changes.listen(

59 (_) => notifyChange(const ChartConfigChangeRecord())), item);

60 }

61 });

62

63 // Monitor series for changes. When the list changes, update

64 // subscriptions to ChartSeries changes.

65 if (_series is ObservableList) {

66 var observable = _series as ObservableList;

67 _disposer.add(observable.listChanges.listen((records) {

68 records.forEach((record) {

69 record.removed.forEach((value) => _disposer.unsubscribe(value));

70 for (int i = 0; i < record.addedCount; i++) {

71 var added = observable[i + record.index];

72 _disposer.add(added.changes.listen(

73 (_) => notifyChange(const ChartConfigChangeRecord())));

74 }

75 });

76 notifyChange(const ChartConfigChangeRecord());

77 }));

78 }

79 }

80

81 @override

82 Iterable<ChartSeries> get series => _series;

83

84 @override

85 set dimensions(Iterable<int> values) {

86 _dimensions = values;

87

88 if (_dimensionsSubscription != null) {

89 _dimensionsSubscription.cancel();

90 _dimensionsSubscription = null;

91 }

92

93 if (values == null \|\| values.isEmpty) return;

94

95 if (_dimensions is ObservableList) {

96 _dimensionsSubscription =

97 (_dimensions as ObservableList).listChanges.listen(

98 (_) => notifyChange(const ChartConfigChangeRecord()));

99 }

100 }

101

102 @override

103 Iterable<int> get dimensions => _dimensions;

104

105 @override

106 void registerMeasureAxis(String id, ChartAxisConfig config) {

107 assert(config != null);

108 _measureAxisRegistry[id] = config;

109 }

110

111 @override

112 ChartAxisConfig getMeasureAxis(String id) => _measureAxisRegistry[id];

113

114 @override

115 void registerDimensionAxis(int column, ChartAxisConfig config) {

116 assert(config != null);

117 assert(dimensions.contains(column));

118 _dimensionAxisRegistry[column] = config;

119 }

120

121 @override

122 ChartAxisConfig getDimensionAxis(int column) =>

123 _dimensionAxisRegistry[column];

124

125 @override

126 set isRTL(bool value) {

127 if (_isRTL != value && value != null) {

128 _isRTL = value;

129 notifyChange(const ChartConfigChangeRecord());

130 }

131 }

132

133 @override

134 bool get isRTL => _isRTL;

135 }

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