/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim: set ts=8 sts=2 et sw=2 tw=80: */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ #ifndef mozilla_gfx_SFNTData_h #define mozilla_gfx_SFNTData_h #include "mozilla/UniquePtr.h" #include "mozilla/Vector.h" #include "u16string.h" namespace mozilla { namespace gfx { class SFNTData final { public: /** * Creates an SFNTData if the header is a format that we understand and * aDataLength is sufficient for the length information in the header data. * Note that the data is NOT copied, so must exist the SFNTData's lifetime. * * @param aFontData the SFNT data. * @param aDataLength length * @return UniquePtr to a SFNTData or nullptr if the header is invalid. */ static UniquePtr<SFNTData> Create(const uint8_t *aFontData, uint32_t aDataLength); /** * Creates a unique key for the given font data. * * @param aFontData the SFNT data * @param aDataLength length * @return unique key to be used for caching */ static uint64_t GetUniqueKey(const uint8_t *aFontData, uint32_t aDataLength); ~SFNTData(); /** * Gets the full name from the name table of the font corresponding to the * index. If the full name string is not present it will use the family space * concatenated with the style. * This will only read names that are already UTF16. * * @param aFontData SFNT data. * @param aDataLength length of aFontData. * @param aU16FullName string to be populated with the full name. * @return true if the full name is successfully read. */ bool GetU16FullName(uint32_t aIndex, mozilla::u16string& aU16FullName); /** * Populate a Vector with the first UTF16 full name from each name table of * the fonts. If the full name string is not present it will use the family * space concatenated with the style. * This will only read names that are already UTF16. * * @param aU16FullNames the Vector to be populated. * @return true if at least one name found otherwise false. */ bool GetU16FullNames(Vector<mozilla::u16string>& aU16FullNames); /** * Returns the index for the first UTF16 name matching aU16FullName. * * @param aU16FullName full name to find. * @param aIndex out param for the index if found. * @param aTruncatedLen length to truncate the compared font name to. * @return true if the full name is successfully read. */ bool GetIndexForU16Name(const mozilla::u16string& aU16FullName, uint32_t* aIndex, size_t aTruncatedLen = 0); private: SFNTData() {} bool AddFont(const uint8_t *aFontData, uint32_t aDataLength, uint32_t aOffset); // Internal representation of single font in font file. class Font; Vector<Font*> mFonts; }; } // gfx } // mozilla #endif // mozilla_gfx_SFNTData_h