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| 1 /* | 1 /* |
| 2 * Copyright (c) 2012, Google Inc. All rights reserved. | 2 * Copyright (c) 2012, Google Inc. All rights reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
| 6 * met: | 6 * met: |
| 7 * | 7 * |
| 8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
| 9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
| 10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
| (...skipping 19 matching lines...) Expand all Loading... |
| 30 | 30 |
| 31 #ifndef WritingMode_h | 31 #ifndef WritingMode_h |
| 32 #define WritingMode_h | 32 #define WritingMode_h |
| 33 | 33 |
| 34 namespace blink { | 34 namespace blink { |
| 35 | 35 |
| 36 // These values are named to match the CSS keywords they correspond to: namely | 36 // These values are named to match the CSS keywords they correspond to: namely |
| 37 // horizontal-tb, vertical-rl and vertical-lr. | 37 // horizontal-tb, vertical-rl and vertical-lr. |
| 38 // Since these names aren't very self-explanatory, where possible use the | 38 // Since these names aren't very self-explanatory, where possible use the |
| 39 // inline utility functions below. | 39 // inline utility functions below. |
| 40 enum class WritingMode : unsigned { HorizontalTb, VerticalRl, VerticalLr }; | 40 enum class WritingMode : unsigned { kHorizontalTb, kVerticalRl, kVerticalLr }; |
| 41 | 41 |
| 42 // Lines have horizontal orientation; modes horizontal-tb. | 42 // Lines have horizontal orientation; modes horizontal-tb. |
| 43 inline bool isHorizontalWritingMode(WritingMode writingMode) { | 43 inline bool isHorizontalWritingMode(WritingMode writingMode) { |
| 44 return writingMode == WritingMode::HorizontalTb; | 44 return writingMode == WritingMode::kHorizontalTb; |
| 45 } | 45 } |
| 46 | 46 |
| 47 // Bottom of the line occurs earlier in the block; modes vertical-lr. | 47 // Bottom of the line occurs earlier in the block; modes vertical-lr. |
| 48 inline bool isFlippedLinesWritingMode(WritingMode writingMode) { | 48 inline bool isFlippedLinesWritingMode(WritingMode writingMode) { |
| 49 return writingMode == WritingMode::VerticalLr; | 49 return writingMode == WritingMode::kVerticalLr; |
| 50 } | 50 } |
| 51 | 51 |
| 52 // Block progression increases in the opposite direction to normal; modes | 52 // Block progression increases in the opposite direction to normal; modes |
| 53 // vertical-rl. | 53 // vertical-rl. |
| 54 inline bool isFlippedBlocksWritingMode(WritingMode writingMode) { | 54 inline bool isFlippedBlocksWritingMode(WritingMode writingMode) { |
| 55 return writingMode == WritingMode::VerticalRl; | 55 return writingMode == WritingMode::kVerticalRl; |
| 56 } | 56 } |
| 57 | 57 |
| 58 } // namespace blink | 58 } // namespace blink |
| 59 | 59 |
| 60 #endif // WritingMode_h | 60 #endif // WritingMode_h |
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