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+/* -*- 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 */