1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/thebes/gfxGraphiteShaper.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,56 @@
1.4 +/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
1.5 + * This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef GFX_GRAPHITESHAPER_H
1.10 +#define GFX_GRAPHITESHAPER_H
1.11 +
1.12 +#include "gfxFont.h"
1.13 +
1.14 +struct gr_face;
1.15 +struct gr_font;
1.16 +struct gr_segment;
1.17 +
1.18 +class gfxGraphiteShaper : public gfxFontShaper {
1.19 +public:
1.20 + gfxGraphiteShaper(gfxFont *aFont);
1.21 + virtual ~gfxGraphiteShaper();
1.22 +
1.23 + virtual bool ShapeText(gfxContext *aContext,
1.24 + const char16_t *aText,
1.25 + uint32_t aOffset,
1.26 + uint32_t aLength,
1.27 + int32_t aScript,
1.28 + gfxShapedText *aShapedText);
1.29 +
1.30 + static void Shutdown();
1.31 +
1.32 +protected:
1.33 + nsresult SetGlyphsFromSegment(gfxContext *aContext,
1.34 + gfxShapedText *aShapedText,
1.35 + uint32_t aOffset,
1.36 + uint32_t aLength,
1.37 + const char16_t *aText,
1.38 + gr_segment *aSegment);
1.39 +
1.40 + static float GrGetAdvance(const void* appFontHandle, uint16_t glyphid);
1.41 +
1.42 + gr_face *mGrFace; // owned by the font entry; shaper must call
1.43 + // gfxFontEntry::ReleaseGrFace when finished with it
1.44 + gr_font *mGrFont; // owned by the shaper itself
1.45 +
1.46 + struct CallbackData {
1.47 + gfxFont *mFont;
1.48 + gfxGraphiteShaper *mShaper;
1.49 + gfxContext *mContext;
1.50 + };
1.51 +
1.52 + CallbackData mCallbackData;
1.53 +
1.54 + // Convert HTML 'lang' (BCP47) to Graphite language code
1.55 + static uint32_t GetGraphiteTagForLang(const nsCString& aLang);
1.56 + static nsTHashtable<nsUint32HashKey> *sLanguageTags;
1.57 +};
1.58 +
1.59 +#endif /* GFX_GRAPHITESHAPER_H */
