| // Copyright 2016 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 "platform/fonts/shaping/CachingWordShapeIterator.h" |
| |
| #include "platform/fonts/shaping/HarfBuzzShaper.h" |
| |
| namespace blink { |
| |
| PassRefPtr<const ShapeResult> CachingWordShapeIterator::ShapeWordWithoutSpacing( |
| const TextRun& word_run, |
| const Font* font) { |
| ShapeCacheEntry* cache_entry = shape_cache_->Add(word_run, ShapeCacheEntry()); |
| if (cache_entry && cache_entry->shape_result_) |
| return cache_entry->shape_result_; |
| |
| unsigned word_length = 0; |
| std::unique_ptr<UChar[]> word_text = word_run.NormalizedUTF16(&word_length); |
| |
| HarfBuzzShaper shaper(word_text.get(), word_length); |
| RefPtr<const ShapeResult> shape_result = |
| shaper.Shape(font, word_run.Direction()); |
| if (!shape_result) |
| return nullptr; |
| |
| if (cache_entry) |
| cache_entry->shape_result_ = shape_result; |
| |
| return shape_result.Release(); |
| } |
| |
| } // namespace blink |
