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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
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parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'gfx/thebes/gfxGraphiteShaper.h')
-rw-r--r--gfx/thebes/gfxGraphiteShaper.h59
1 files changed, 59 insertions, 0 deletions
diff --git a/gfx/thebes/gfxGraphiteShaper.h b/gfx/thebes/gfxGraphiteShaper.h
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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_GRAPHITESHAPER_H
+#define GFX_GRAPHITESHAPER_H
+
+#include "gfxFont.h"
+
+#include "mozilla/gfx/2D.h"
+
+struct gr_face;
+struct gr_font;
+struct gr_segment;
+
+class gfxGraphiteShaper : public gfxFontShaper {
+public:
+ explicit gfxGraphiteShaper(gfxFont *aFont);
+ virtual ~gfxGraphiteShaper();
+
+ virtual bool ShapeText(DrawTarget *aDrawTarget,
+ const char16_t *aText,
+ uint32_t aOffset,
+ uint32_t aLength,
+ Script aScript,
+ bool aVertical,
+ gfxShapedText *aShapedText);
+
+ static void Shutdown();
+
+protected:
+ nsresult SetGlyphsFromSegment(DrawTarget *aDrawTarget,
+ gfxShapedText *aShapedText,
+ uint32_t aOffset,
+ uint32_t aLength,
+ const char16_t *aText,
+ gr_segment *aSegment);
+
+ static float GrGetAdvance(const void* appFontHandle, uint16_t glyphid);
+
+ gr_face *mGrFace; // owned by the font entry; shaper must call
+ // gfxFontEntry::ReleaseGrFace when finished with it
+ gr_font *mGrFont; // owned by the shaper itself
+
+ struct CallbackData {
+ gfxFont* mFont;
+ mozilla::gfx::DrawTarget* mDrawTarget;
+ };
+
+ CallbackData mCallbackData;
+ bool mFallbackToSmallCaps; // special fallback for the petite-caps case
+
+ // Convert HTML 'lang' (BCP47) to Graphite language code
+ static uint32_t GetGraphiteTagForLang(const nsCString& aLang);
+ static nsTHashtable<nsUint32HashKey> *sLanguageTags;
+};
+
+#endif /* GFX_GRAPHITESHAPER_H */