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# ignore-this-changeset Depends on D28954 Differential Revision: https://phabricator.services.mozilla.com/D28956 --HG-- extra : moz-landing-system : lando
55 lines
1.8 KiB
C++
55 lines
1.8 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef GFX_GRAPHITESHAPER_H
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#define GFX_GRAPHITESHAPER_H
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#include "gfxFont.h"
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#include "mozilla/gfx/2D.h"
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struct gr_face;
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struct gr_font;
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struct gr_segment;
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class gfxGraphiteShaper : public gfxFontShaper {
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public:
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explicit gfxGraphiteShaper(gfxFont* aFont);
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virtual ~gfxGraphiteShaper();
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bool ShapeText(DrawTarget* aDrawTarget, const char16_t* aText,
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uint32_t aOffset, uint32_t aLength, Script aScript,
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bool aVertical, RoundingFlags aRounding,
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gfxShapedText* aShapedText) override;
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static void Shutdown();
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protected:
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nsresult SetGlyphsFromSegment(gfxShapedText* aShapedText, uint32_t aOffset,
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uint32_t aLength, const char16_t* aText,
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gr_segment* aSegment, RoundingFlags aRounding);
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static float GrGetAdvance(const void* appFontHandle, uint16_t glyphid);
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gr_face* mGrFace; // owned by the font entry; shaper must call
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// gfxFontEntry::ReleaseGrFace when finished with it
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gr_font* mGrFont; // owned by the shaper itself
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struct CallbackData {
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// mFont is a pointer to the font that owns this shaper, so it will
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// remain valid throughout our lifetime
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gfxFont* MOZ_NON_OWNING_REF mFont;
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};
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CallbackData mCallbackData;
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bool mFallbackToSmallCaps; // special fallback for the petite-caps case
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// Convert HTML 'lang' (BCP47) to Graphite language code
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static uint32_t GetGraphiteTagForLang(const nsCString& aLang);
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static nsTHashtable<nsUint32HashKey>* sLanguageTags;
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};
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#endif /* GFX_GRAPHITESHAPER_H */
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