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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef UI_GFX_TEXT_CONSTANTS_H_ | |
6 #define UI_GFX_TEXT_CONSTANTS_H_ | |
7 | |
8 namespace gfx { | |
9 | |
10 // TODO(msw): Distinguish between logical character stops and glyph stops? | |
11 // TODO(msw): Merge with base::i18n::BreakIterator::BreakType. | |
12 enum BreakType { | |
13 CHARACTER_BREAK = 0, // Stop cursor movement on neighboring characters. | |
14 WORD_BREAK, // Stop cursor movement on nearest word boundaries. | |
15 LINE_BREAK, // Stop cursor movement on line ends as shown on screen. | |
16 }; | |
17 | |
18 // Horizontal text alignment modes. | |
19 enum HorizontalAlignment { | |
20 ALIGN_LEFT = 0, // Align the text's left edge with that of its display area. | |
21 ALIGN_CENTER, // Align the text's center with that of its display area. | |
22 ALIGN_RIGHT, // Align the text's right edge with that of its display area. | |
23 ALIGN_TO_HEAD, // Align the text to its first strong character's direction. | |
24 }; | |
25 | |
26 // The directionality modes used to determine the base text direction. | |
27 enum DirectionalityMode { | |
28 DIRECTIONALITY_FROM_TEXT = 0, // Use the first strong character's direction. | |
29 DIRECTIONALITY_FROM_UI, // Use the UI locale's text reading direction. | |
30 DIRECTIONALITY_FORCE_LTR, // Use LTR regardless of content or UI locale. | |
31 DIRECTIONALITY_FORCE_RTL, // Use RTL regardless of content or UI locale. | |
32 }; | |
33 | |
34 // Text styles and adornments. | |
35 // TODO(msw): Merge with gfx::Font::FontStyle. | |
36 enum TextStyle { | |
37 BOLD = 0, | |
38 ITALIC, | |
39 STRIKE, | |
40 DIAGONAL_STRIKE, | |
41 UNDERLINE, | |
42 NUM_TEXT_STYLES, | |
43 }; | |
44 | |
45 // Elision behaviors of text that exceeds constrained dimensions. | |
46 enum ElideBehavior { | |
47 NO_ELIDE = 0, // Do not modify the text, it may overflow its available bounds. | |
48 TRUNCATE, // Do not elide or fade, just truncate at the end of the string. | |
49 ELIDE_HEAD, // Add an ellipsis at the start of the string. | |
50 ELIDE_MIDDLE, // Add an ellipsis in the middle of the string. | |
51 ELIDE_TAIL, // Add an ellipsis at the end of the string. | |
52 ELIDE_EMAIL, // Add ellipses to username and domain substrings. | |
53 FADE_TAIL, // Fade the string's end opposite of its horizontal alignment. | |
54 }; | |
55 | |
56 } // namespace gfx | |
57 | |
58 #endif // UI_GFX_TEXT_CONSTANTS_H_ | |
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