1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/thebes/gfxFT2Fonts.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,134 @@
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_FT2FONTS_H
1.10 +#define GFX_FT2FONTS_H
1.11 +
1.12 +#include "mozilla/MemoryReporting.h"
1.13 +#include "cairo.h"
1.14 +#include "gfxTypes.h"
1.15 +#include "gfxFont.h"
1.16 +#include "gfxFT2FontBase.h"
1.17 +#include "gfxContext.h"
1.18 +#include "gfxFontUtils.h"
1.19 +#include "gfxUserFontSet.h"
1.20 +
1.21 +class FT2FontEntry;
1.22 +
1.23 +class gfxFT2Font : public gfxFT2FontBase {
1.24 +public: // new functions
1.25 + gfxFT2Font(cairo_scaled_font_t *aCairoFont,
1.26 + FT2FontEntry *aFontEntry,
1.27 + const gfxFontStyle *aFontStyle,
1.28 + bool aNeedsBold);
1.29 + virtual ~gfxFT2Font ();
1.30 +
1.31 + FT2FontEntry *GetFontEntry();
1.32 +
1.33 + static already_AddRefed<gfxFT2Font>
1.34 + GetOrMakeFont(const nsAString& aName, const gfxFontStyle *aStyle,
1.35 + bool aNeedsBold = false);
1.36 +
1.37 + static already_AddRefed<gfxFT2Font>
1.38 + GetOrMakeFont(FT2FontEntry *aFontEntry, const gfxFontStyle *aStyle,
1.39 + bool aNeedsBold = false);
1.40 +
1.41 + struct CachedGlyphData {
1.42 + CachedGlyphData()
1.43 + : glyphIndex(0xffffffffU) { }
1.44 +
1.45 + CachedGlyphData(uint32_t gid)
1.46 + : glyphIndex(gid) { }
1.47 +
1.48 + uint32_t glyphIndex;
1.49 + int32_t lsbDelta;
1.50 + int32_t rsbDelta;
1.51 + int32_t xAdvance;
1.52 + };
1.53 +
1.54 + const CachedGlyphData* GetGlyphDataForChar(uint32_t ch) {
1.55 + CharGlyphMapEntryType *entry = mCharGlyphCache.PutEntry(ch);
1.56 +
1.57 + if (!entry)
1.58 + return nullptr;
1.59 +
1.60 + if (entry->mData.glyphIndex == 0xffffffffU) {
1.61 + // this is a new entry, fill it
1.62 + FillGlyphDataForChar(ch, &entry->mData);
1.63 + }
1.64 +
1.65 + return &entry->mData;
1.66 + }
1.67 +
1.68 + virtual void AddSizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf,
1.69 + FontCacheSizes* aSizes) const;
1.70 + virtual void AddSizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf,
1.71 + FontCacheSizes* aSizes) const;
1.72 +
1.73 +#ifdef USE_SKIA
1.74 + virtual mozilla::TemporaryRef<mozilla::gfx::GlyphRenderingOptions> GetGlyphRenderingOptions();
1.75 +#endif
1.76 +
1.77 +protected:
1.78 + virtual bool ShapeText(gfxContext *aContext,
1.79 + const char16_t *aText,
1.80 + uint32_t aOffset,
1.81 + uint32_t aLength,
1.82 + int32_t aScript,
1.83 + gfxShapedText *aShapedText,
1.84 + bool aPreferPlatformShaping);
1.85 +
1.86 + void FillGlyphDataForChar(uint32_t ch, CachedGlyphData *gd);
1.87 +
1.88 + void AddRange(const char16_t *aText,
1.89 + uint32_t aOffset,
1.90 + uint32_t aLength,
1.91 + gfxShapedText *aShapedText);
1.92 +
1.93 + typedef nsBaseHashtableET<nsUint32HashKey, CachedGlyphData> CharGlyphMapEntryType;
1.94 + typedef nsTHashtable<CharGlyphMapEntryType> CharGlyphMap;
1.95 + CharGlyphMap mCharGlyphCache;
1.96 +};
1.97 +
1.98 +#ifndef ANDROID // not needed on Android, uses the standard gfxFontGroup directly
1.99 +class gfxFT2FontGroup : public gfxFontGroup {
1.100 +public: // new functions
1.101 + gfxFT2FontGroup (const nsAString& families,
1.102 + const gfxFontStyle *aStyle,
1.103 + gfxUserFontSet *aUserFontSet);
1.104 + virtual ~gfxFT2FontGroup ();
1.105 +
1.106 +protected: // from gfxFontGroup
1.107 +
1.108 + virtual gfxFontGroup *Copy(const gfxFontStyle *aStyle);
1.109 +
1.110 +
1.111 +protected: // new functions
1.112 +
1.113 + static bool FontCallback (const nsAString & fontName,
1.114 + const nsACString & genericName,
1.115 + bool aUseFontSet,
1.116 + void *closure);
1.117 + bool mEnableKerning;
1.118 +
1.119 + void GetPrefFonts(nsIAtom *aLangGroup,
1.120 + nsTArray<nsRefPtr<gfxFontEntry> >& aFontEntryList);
1.121 + void GetCJKPrefFonts(nsTArray<nsRefPtr<gfxFontEntry> >& aFontEntryList);
1.122 + void FamilyListToArrayList(const nsString& aFamilies,
1.123 + nsIAtom *aLangGroup,
1.124 + nsTArray<nsRefPtr<gfxFontEntry> > *aFontEntryList);
1.125 + already_AddRefed<gfxFT2Font> WhichFontSupportsChar(const nsTArray<nsRefPtr<gfxFontEntry> >& aFontEntryList,
1.126 + uint32_t aCh);
1.127 + already_AddRefed<gfxFont> WhichPrefFontSupportsChar(uint32_t aCh);
1.128 + already_AddRefed<gfxFont>
1.129 + WhichSystemFontSupportsChar(uint32_t aCh, int32_t aRunScript);
1.130 +
1.131 + nsTArray<gfxTextRange> mRanges;
1.132 + nsString mString;
1.133 +};
1.134 +#endif // !ANDROID
1.135 +
1.136 +#endif /* GFX_FT2FONTS_H */
1.137 +
