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Side by Side Diff: packages/charted/lib/charts/chart_state.dart

Issue 1521693002: Roll Observatory deps (charted -> ^0.3.0) (Closed) Base URL: https://chromium.googlesource.com/external/github.com/dart-lang/observatory_pub_packages.git@master
Patch Set: Created 5 years ago
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1 // 1 //
2 // Copyright 2014 Google Inc. All rights reserved. 2 // Copyright 2014 Google Inc. All rights reserved.
3 // 3 //
4 // Use of this source code is governed by a BSD-style 4 // Use of this source code is governed by a BSD-style
5 // license that can be found in the LICENSE file or at 5 // license that can be found in the LICENSE file or at
6 // https://developers.google.com/open-source/licenses/bsd 6 // https://developers.google.com/open-source/licenses/bsd
7 // 7 //
8 8
9 part of charted.charts; 9 part of charted.charts;
10 10
11 /// 11 ///
12 /// Model to provide highlight, selection and visibility in a ChartArea. 12 /// Model to provide highlight, selection and visibility in a ChartArea.
13 /// Selection and visibility 13 /// Selection and visibility
14 /// 14 ///
15 abstract class ChartState implements ChangeNotifier { 15 abstract class ChartState implements ChangeNotifier {
16 static int COL_SELECTED = 0x001; 16 static int COL_SELECTED = 0x001;
17 static int COL_UNSELECTED = 0x002; 17 static int COL_UNSELECTED = 0x002;
18 static int COL_PREVIEW = 0x004; 18 static int COL_PREVIEW = 0x004;
19 static int COL_HIDDEN = 0x008; 19 static int COL_HIDDEN = 0x008;
20 static int COL_HIGHLIGHTED = 0x010; 20 static int COL_HIGHLIGHTED = 0x010;
21 static int COL_UNHIGHLIGHTED = 0x020; 21 static int COL_UNHIGHLIGHTED = 0x020;
22 static int COL_HOVERED = 0x040; 22 static int COL_HOVERED = 0x040;
23 static int VAL_HIGHLIGHTED = 0x080; 23 static int VAL_HIGHLIGHTED = 0x080;
24 static int VAL_UNHIGHLIGHTED = 0x100; 24 static int VAL_UNHIGHLIGHTED = 0x100;
25 static int VAL_HOVERED = 0x200; 25 static int VAL_HOVERED = 0x200;
26 26
27 static const COL_SELECTED_CLASS = 'col-selected'; 27 static const COL_SELECTED_CLASS = 'col-selected';
28 static const COL_UNSELECTED_CLASS = 'col-unselected'; 28 static const COL_UNSELECTED_CLASS = 'col-unselected';
29 static const COL_PREVIEW_CLASS = 'col-previewed'; 29 static const COL_PREVIEW_CLASS = 'col-previewed';
30 static const COL_HIDDEN_CLASS = 'col-hidden'; 30 static const COL_HIDDEN_CLASS = 'col-hidden';
31 static const COL_HIGHLIGHTED_CLASS = 'col-highlighted'; 31 static const COL_HIGHLIGHTED_CLASS = 'col-highlighted';
32 static const COL_UNHIGHLIGHTED_CLASS = 'col-unhighlighted'; 32 static const COL_UNHIGHLIGHTED_CLASS = 'col-unhighlighted';
33 static const COL_HOVERED_CLASS = 'col-hovered'; 33 static const COL_HOVERED_CLASS = 'col-hovered';
34 static const VAL_HIGHLIGHTED_CLASS = 'row-highlighted'; 34 static const VAL_HIGHLIGHTED_CLASS = 'row-highlighted';
35 static const VAL_UNHIGHLIGHTED_CLASS = 'row-unhighlighted'; 35 static const VAL_UNHIGHLIGHTED_CLASS = 'row-unhighlighted';
36 static const VAL_HOVERED_CLASS = 'row-hovered'; 36 static const VAL_HOVERED_CLASS = 'row-hovered';
37 37
38 static const COLUMN_CLASS_NAMES = const[ 38 static const COLUMN_CLASS_NAMES = const [
39 COL_SELECTED_CLASS, COL_UNSELECTED_CLASS, COL_PREVIEW_CLASS, 39 COL_SELECTED_CLASS,
40 COL_HIGHLIGHTED_CLASS, COL_UNHIGHLIGHTED_CLASS, COL_HIDDEN_CLASS, 40 COL_UNSELECTED_CLASS,
41 COL_HOVERED_CLASS]; 41 COL_PREVIEW_CLASS,
42 COL_HIGHLIGHTED_CLASS,
43 COL_UNHIGHLIGHTED_CLASS,
44 COL_HIDDEN_CLASS,
45 COL_HOVERED_CLASS
46 ];
42 47
43 static const VALUE_CLASS_NAMES = const[ 48 static const VALUE_CLASS_NAMES = const [
44 COL_SELECTED_CLASS, COL_UNSELECTED_CLASS, COL_PREVIEW_CLASS, 49 COL_SELECTED_CLASS,
45 COL_HIGHLIGHTED_CLASS, COL_UNHIGHLIGHTED_CLASS, COL_HIDDEN_CLASS, 50 COL_UNSELECTED_CLASS,
46 COL_HOVERED_CLASS, VAL_HIGHLIGHTED_CLASS, VAL_UNHIGHLIGHTED_CLASS, 51 COL_PREVIEW_CLASS,
47 VAL_HOVERED_CLASS]; 52 COL_HIGHLIGHTED_CLASS,
53 COL_UNHIGHLIGHTED_CLASS,
54 COL_HIDDEN_CLASS,
55 COL_HOVERED_CLASS,
56 VAL_HIGHLIGHTED_CLASS,
57 VAL_UNHIGHLIGHTED_CLASS,
58 VAL_HOVERED_CLASS
59 ];
48 60
49 /// List of selected items. 61 /// List of selected items.
50 /// - Contains a column on CartesianArea if useRowColoring is false. 62 /// - Contains a column on CartesianArea if useRowColoring is false.
51 /// - Row index in all other cases. 63 /// - Row index in all other cases.
52 Iterable<int> get selection; 64 Iterable<int> get selection;
53 65
54 /// List of visible items. 66 /// List of visible items.
55 /// - Contains a column on CartesianArea if useRowColoring is false. 67 /// - Contains a column on CartesianArea if useRowColoring is false.
56 /// - Row index in all other cases. 68 /// - Row index in all other cases.
57 Iterable<int> get hidden; 69 Iterable<int> get hidden;
58 70
59 /// Currently previewed row or column. Hidden items can be previewed 71 /// Currently previewed row or column. Hidden items can be previewed
60 /// by hovering on the corresponding label in Legend 72 /// by hovering on the corresponding label in Legend
61 /// - Contains a column on CartesianArea if useRowColoring is false. 73 /// - Contains a column on CartesianArea if useRowColoring is false.
62 /// - Row index in all other cases. 74 /// - Row index in all other cases.
63 int preview; 75 int preview;
64 76
65 /// Currently highlighted value, if any, represented as column and row. 77 /// Currently highlighted value, if any, represented as column and row.
66 /// Highlight is result of a click on certain value. 78 /// Highlight is result of a click on certain value.
67 Iterable<Pair<int,int>> highlights; 79 Iterable<Pair<int, int>> highlights;
68 80
69 /// Currently hovered value, if any, represented as column and row. 81 /// Currently hovered value, if any, represented as column and row.
70 /// Hover is result of mouse moving over a certian value in chart. 82 /// Hover is result of mouse moving over a certian value in chart.
71 Pair<int,int> hovered; 83 Pair<int, int> hovered;
72 84
73 /// Ensure that a row or column is visible. 85 /// Ensure that a row or column is visible.
74 bool unhide(int id); 86 bool unhide(int id);
75 87
76 /// Ensure that a row or column is invisible. 88 /// Ensure that a row or column is invisible.
77 bool hide(int id); 89 bool hide(int id);
78 90
79 /// Returns current visibility of a row or column. 91 /// Returns current visibility of a row or column.
80 bool isVisible(int id); 92 bool isVisible(int id);
81 93
(...skipping 37 matching lines...) Expand 10 before | Expand all | Expand 10 after
119 final int unhide; 131 final int unhide;
120 final int hide; 132 final int hide;
121 const ChartVisibilityChangeRecord({this.unhide, this.hide}); 133 const ChartVisibilityChangeRecord({this.unhide, this.hide});
122 } 134 }
123 135
124 /// 136 ///
125 /// Implementation of [ChangeRecord], that is used to notify changes to 137 /// Implementation of [ChangeRecord], that is used to notify changes to
126 /// values in [ChartData]. 138 /// values in [ChartData].
127 /// 139 ///
128 class ChartHighlightChangeRecord implements ChangeRecord { 140 class ChartHighlightChangeRecord implements ChangeRecord {
129 final Pair<int,int> remove; 141 final Pair<int, int> remove;
130 final Pair<int,int> add; 142 final Pair<int, int> add;
131 const ChartHighlightChangeRecord({this.add, this.remove}); 143 const ChartHighlightChangeRecord({this.add, this.remove});
132 } 144 }
133 145
134 /// 146 ///
135 /// Implementation of [ChangeRecord], that is used to notify changes to 147 /// Implementation of [ChangeRecord], that is used to notify changes to
136 /// values in [ChartData]. 148 /// values in [ChartData].
137 /// 149 ///
138 class ChartHoverChangeRecord implements ChangeRecord { 150 class ChartHoverChangeRecord implements ChangeRecord {
139 final Pair<int,int> hovered; 151 final Pair<int, int> hovered;
140 const ChartHoverChangeRecord(this.hovered); 152 const ChartHoverChangeRecord(this.hovered);
141 } 153 }
142 154
143 /// 155 ///
144 /// Implementation of [ChangeRecord], that is used to notify changes to 156 /// Implementation of [ChangeRecord], that is used to notify changes to
145 /// values in [ChartData]. 157 /// values in [ChartData].
146 /// 158 ///
147 class ChartPreviewChangeRecord implements ChangeRecord { 159 class ChartPreviewChangeRecord implements ChangeRecord {
148 final int previewed; 160 final int previewed;
149 const ChartPreviewChangeRecord(this.previewed); 161 const ChartPreviewChangeRecord(this.previewed);
150 } 162 }
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