| // Copyright 2017 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "third_party/blink/renderer/core/layout/ng/geometry/ng_border_edges.h" |
| |
| namespace blink { |
| |
| NGBorderEdges NGBorderEdges::FromPhysical(unsigned physical_edges, |
| WritingMode writing_mode) { |
| if (writing_mode == WritingMode::kHorizontalTb) { |
| return NGBorderEdges(physical_edges & kTop, physical_edges & kRight, |
| physical_edges & kBottom, physical_edges & kLeft); |
| } |
| if (writing_mode != WritingMode::kSidewaysLr) { |
| return NGBorderEdges(physical_edges & kRight, physical_edges & kBottom, |
| physical_edges & kLeft, physical_edges & kTop); |
| } |
| return NGBorderEdges(physical_edges & kLeft, physical_edges & kTop, |
| physical_edges & kRight, physical_edges & kBottom); |
| } |
| |
| unsigned NGBorderEdges::ToPhysical(WritingMode writing_mode) const { |
| if (writing_mode == WritingMode::kHorizontalTb) { |
| return (block_start ? kTop : 0) | (line_right ? kRight : 0) | |
| (block_end ? kBottom : 0) | (line_left ? kLeft : 0); |
| } |
| if (writing_mode != WritingMode::kSidewaysLr) { |
| return (block_start ? kRight : 0) | (line_right ? kBottom : 0) | |
| (block_end ? kLeft : 0) | (line_left ? kTop : 0); |
| } |
| return (block_start ? kLeft : 0) | (line_right ? kTop : 0) | |
| (block_end ? kRight : 0) | (line_left ? kBottom : 0); |
| } |
| |
| } // namespace blink |
