ui/gfx/text_constants.h

   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   // Stop cursor movement on neighboring characters.
  14   CHARACTER_BREAK = 0,
  15   // Stop cursor movement on nearest word boundaries.
  16   WORD_BREAK,
  17   // Stop cursor movement on line ends as shown on screen.
  18   LINE_BREAK,
  19 };
  20
  21 // Horizontal text alignment modes.
  22 enum HorizontalAlignment {
  23   // Align the text's left edge with that of its display area.
  24   ALIGN_LEFT = 0,
  25   // Align the text's center with that of its display area.
  26   ALIGN_CENTER,
  27   // Align the text's right edge with that of its display area.
  28   ALIGN_RIGHT,
  29 };
  30
  31 // Vertical text alignment modes.
  32 enum VerticalAlignment {
  33   // Align the text's top edge with that of its display area.
  34   ALIGN_TOP = 0,
  35   // Align the text's center with that of its display area.
  36   ALIGN_VCENTER,
  37   // Align the text's bottom edge with that of its display area.
  38   ALIGN_BOTTOM,
  39 };
  40
  41 // The directionality modes used to determine the base text direction.
  42 enum DirectionalityMode {
  43   // Use the first strong character's direction.
  44   DIRECTIONALITY_FROM_TEXT = 0,
  45   // Use the UI locale's text reading direction.
  46   DIRECTIONALITY_FROM_UI,
  47   // Use LTR regardless of content or UI locale.
  48   DIRECTIONALITY_FORCE_LTR,
  49   // Use RTL regardless of content or UI locale.
  50   DIRECTIONALITY_FORCE_RTL,
  51 };
  52
  53 // Text styles and adornments.
  54 // TODO(msw): Merge with gfx::Font::FontStyle.
  55 enum TextStyle {
  56   BOLD = 0,
  57   ITALIC,
  58   STRIKE,
  59   DIAGONAL_STRIKE,
  60   UNDERLINE,
  61   NUM_TEXT_STYLES,
  62 };
  63
  64 }  // namespace gfx
  65
  66 #endif  // UI_GFX_TEXT_CONSTANTS_H_