/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- * 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 GFX_CORETEXTSHAPER_H #define GFX_CORETEXTSHAPER_H #include "gfxFont.h" #include <ApplicationServices/ApplicationServices.h> class gfxMacFont; class gfxCoreTextShaper : public gfxFontShaper { public: explicit gfxCoreTextShaper(gfxMacFont *aFont); virtual ~gfxCoreTextShaper(); virtual bool ShapeText(DrawTarget *aDrawTarget, const char16_t *aText, uint32_t aOffset, uint32_t aLength, Script aScript, bool aVertical, gfxShapedText *aShapedText); // clean up static objects that may have been cached static void Shutdown(); protected: CTFontRef mCTFont; // attributes for shaping text with LTR or RTL directionality CFDictionaryRef mAttributesDictLTR; CFDictionaryRef mAttributesDictRTL; nsresult SetGlyphsFromRun(gfxShapedText *aShapedText, uint32_t aOffset, uint32_t aLength, CTRunRef aCTRun, int32_t aStringOffset); CTFontRef CreateCTFontWithFeatures(CGFloat aSize, CTFontDescriptorRef aDescriptor); CFDictionaryRef CreateAttrDict(bool aRightToLeft); CFDictionaryRef CreateAttrDictWithoutDirection(); static CTFontDescriptorRef CreateFontFeaturesDescriptor(const std::pair<SInt16,SInt16> aFeatures[], size_t aCount); static CTFontDescriptorRef GetDefaultFeaturesDescriptor(); static CTFontDescriptorRef GetDisableLigaturesDescriptor(); static CTFontDescriptorRef GetIndicFeaturesDescriptor(); static CTFontDescriptorRef GetIndicDisableLigaturesDescriptor(); // cached font descriptor, created the first time it's needed static CTFontDescriptorRef sDefaultFeaturesDescriptor; // cached descriptor for adding disable-ligatures setting to a font static CTFontDescriptorRef sDisableLigaturesDescriptor; // feature descriptors for buggy Indic AAT font workaround static CTFontDescriptorRef sIndicFeaturesDescriptor; static CTFontDescriptorRef sIndicDisableLigaturesDescriptor; }; #endif /* GFX_CORETEXTSHAPER_H */