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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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