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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "ui/gfx/font_fallback_win.h" | 5 #include "ui/gfx/font_fallback_win.h" |
| 6 | 6 |
| 7 #include <dwrite_2.h> | 7 #include <dwrite_2.h> |
| 8 #include <usp10.h> | 8 #include <usp10.h> |
| 9 #include <wrl.h> | 9 #include <wrl.h> |
| 10 | 10 |
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| 352 | 352 |
| 353 // Check that we have at least as much text as was claimed. If we have less | 353 // Check that we have at least as much text as was claimed. If we have less |
| 354 // text than expected then DirectWrite will become confused and crash. This | 354 // text than expected then DirectWrite will become confused and crash. This |
| 355 // shouldn't happen, but crbug.com/624905 shows that it happens sometimes. | 355 // shouldn't happen, but crbug.com/624905 shows that it happens sometimes. |
| 356 DCHECK_GE(wcslen(text), static_cast<size_t>(text_length)); | 356 DCHECK_GE(wcslen(text), static_cast<size_t>(text_length)); |
| 357 text_length = std::min(wcslen(text), static_cast<size_t>(text_length)); | 357 text_length = std::min(wcslen(text), static_cast<size_t>(text_length)); |
| 358 | 358 |
| 359 base::win::ScopedComPtr<IDWriteFactory> factory; | 359 base::win::ScopedComPtr<IDWriteFactory> factory; |
| 360 gfx::win::CreateDWriteFactory(factory.Receive()); | 360 gfx::win::CreateDWriteFactory(factory.Receive()); |
| 361 base::win::ScopedComPtr<IDWriteFactory2> factory2; | 361 base::win::ScopedComPtr<IDWriteFactory2> factory2; |
| 362 factory.QueryInterface(factory2.Receive()); | 362 factory.CopyTo(factory2.Receive()); |
| 363 if (!factory2) { | 363 if (!factory2) { |
| 364 // IDWriteFactory2 is not available before Win8.1 | 364 // IDWriteFactory2 is not available before Win8.1 |
| 365 return GetUniscribeFallbackFont(font, text, text_length, result); | 365 return GetUniscribeFallbackFont(font, text, text_length, result); |
| 366 } | 366 } |
| 367 | 367 |
| 368 base::win::ScopedComPtr<IDWriteFontFallback> fallback; | 368 base::win::ScopedComPtr<IDWriteFontFallback> fallback; |
| 369 if (FAILED(factory2->GetSystemFontFallback(fallback.Receive()))) | 369 if (FAILED(factory2->GetSystemFontFallback(fallback.Receive()))) |
| 370 return false; | 370 return false; |
| 371 | 371 |
| 372 base::string16 locale = base::UTF8ToUTF16(base::i18n::GetConfiguredLocale()); | 372 base::string16 locale = base::UTF8ToUTF16(base::i18n::GetConfiguredLocale()); |
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| 406 base::string16 name; | 406 base::string16 name; |
| 407 if (FAILED(GetFamilyNameFromDirectWriteFont(mapped_font.Get(), &name))) | 407 if (FAILED(GetFamilyNameFromDirectWriteFont(mapped_font.Get(), &name))) |
| 408 return false; | 408 return false; |
| 409 *result = Font(base::UTF16ToUTF8(name), font.GetFontSize() * scale); | 409 *result = Font(base::UTF16ToUTF8(name), font.GetFontSize() * scale); |
| 410 return true; | 410 return true; |
| 411 } | 411 } |
| 412 return false; | 412 return false; |
| 413 } | 413 } |
| 414 | 414 |
| 415 } // namespace gfx | 415 } // namespace gfx |
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