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_ 59
