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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 Observable { |
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; |
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153 } | 153 } |
154 | 154 |
155 /// | 155 /// |
156 /// Implementation of [ChangeRecord], that is used to notify changes to | 156 /// Implementation of [ChangeRecord], that is used to notify changes to |
157 /// values in [ChartData]. | 157 /// values in [ChartData]. |
158 /// | 158 /// |
159 class ChartPreviewChangeRecord implements ChangeRecord { | 159 class ChartPreviewChangeRecord implements ChangeRecord { |
160 final int previewed; | 160 final int previewed; |
161 const ChartPreviewChangeRecord(this.previewed); | 161 const ChartPreviewChangeRecord(this.previewed); |
162 } | 162 } |
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