| // Copyright 2014 PDFium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| |
| #include "core/fxcrt/fx_unicode.h" |
| |
| #include "core/fxcrt/fx_ucddata.h" |
| |
| namespace { |
| |
| wchar_t GetMirrorChar(wchar_t wch, uint32_t dwProps) { |
| uint32_t dwTemp = (dwProps & kMirrorBitMask); |
| if (dwTemp == kMirrorBitMask) |
| return wch; |
| size_t idx = dwTemp >> kMirrorBitPos; |
| return idx < kFXTextLayoutBidiMirrorSize ? kFXTextLayoutBidiMirror[idx] : wch; |
| } |
| |
| } // namespace |
| |
| uint32_t FX_GetUnicodeProperties(wchar_t wch) { |
| size_t idx = static_cast<size_t>(wch); |
| if (idx < kTextLayoutCodePropertiesSize) |
| return kTextLayoutCodeProperties[idx]; |
| return 0; |
| } |
| |
| wchar_t FX_GetMirrorChar(wchar_t wch) { |
| return GetMirrorChar(wch, FX_GetUnicodeProperties(wch)); |
| } |
| |
| #ifdef PDF_ENABLE_XFA |
| static_assert(FX_CHARTYPEBITS == kCharTypeBitPos, "positions must match"); |
| |
| FX_CHARTYPE GetCharTypeFromProp(uint32_t prop) { |
| uint32_t result = (prop & kCharTypeBitMask); |
| ASSERT(result <= FX_CHARTYPE_Arabic); |
| return static_cast<FX_CHARTYPE>(result); |
| } |
| |
| uint32_t GetBreakPropertyFromProp(uint32_t prop) { |
| uint32_t result = (prop & kBreakTypeBitMask) >> kBreakTypeBitPos; |
| ASSERT(result <= kBreakPropertyTB); |
| return result; |
| } |
| |
| wchar_t FX_GetMirrorChar(wchar_t wch, uint32_t dwProps) { |
| return GetMirrorChar(wch, dwProps); |
| } |
| #endif // PDF_ENABLE_XFA |