gecko/gfx/thebes/gfxFT2Fonts.h
Nicholas Nethercote 73046bbae3 Bug 921923 (part 4) - Make multi-output sizeOfFoo() functions more consistent in gfx/thebes/. r=jkew.
--HG--
extra : rebase_source : 02ddce0e34ec6619fcaf92aa30addc77bdd8b80f
2013-10-14 19:19:47 -07:00

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4.5 KiB
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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_FT2FONTS_H
#define GFX_FT2FONTS_H
#include "mozilla/MemoryReporting.h"
#include "cairo.h"
#include "gfxTypes.h"
#include "gfxFont.h"
#include "gfxFT2FontBase.h"
#include "gfxContext.h"
#include "gfxFontUtils.h"
#include "gfxUserFontSet.h"
class FT2FontEntry;
class gfxFT2Font : public gfxFT2FontBase {
public: // new functions
gfxFT2Font(cairo_scaled_font_t *aCairoFont,
FT2FontEntry *aFontEntry,
const gfxFontStyle *aFontStyle,
bool aNeedsBold);
virtual ~gfxFT2Font ();
FT2FontEntry *GetFontEntry();
static already_AddRefed<gfxFT2Font>
GetOrMakeFont(const nsAString& aName, const gfxFontStyle *aStyle,
bool aNeedsBold = false);
static already_AddRefed<gfxFT2Font>
GetOrMakeFont(FT2FontEntry *aFontEntry, const gfxFontStyle *aStyle,
bool aNeedsBold = false);
struct CachedGlyphData {
CachedGlyphData()
: glyphIndex(0xffffffffU) { }
CachedGlyphData(uint32_t gid)
: glyphIndex(gid) { }
uint32_t glyphIndex;
int32_t lsbDelta;
int32_t rsbDelta;
int32_t xAdvance;
};
const CachedGlyphData* GetGlyphDataForChar(uint32_t ch) {
CharGlyphMapEntryType *entry = mCharGlyphCache.PutEntry(ch);
if (!entry)
return nullptr;
if (entry->mData.glyphIndex == 0xffffffffU) {
// this is a new entry, fill it
FillGlyphDataForChar(ch, &entry->mData);
}
return &entry->mData;
}
virtual void AddSizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf,
FontCacheSizes* aSizes) const;
virtual void AddSizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf,
FontCacheSizes* aSizes) const;
#ifdef USE_SKIA
virtual mozilla::TemporaryRef<mozilla::gfx::GlyphRenderingOptions> GetGlyphRenderingOptions();
#endif
protected:
virtual bool ShapeText(gfxContext *aContext,
const PRUnichar *aText,
uint32_t aOffset,
uint32_t aLength,
int32_t aScript,
gfxShapedText *aShapedText,
bool aPreferPlatformShaping);
void FillGlyphDataForChar(uint32_t ch, CachedGlyphData *gd);
void AddRange(const PRUnichar *aText,
uint32_t aOffset,
uint32_t aLength,
gfxShapedText *aShapedText);
typedef nsBaseHashtableET<nsUint32HashKey, CachedGlyphData> CharGlyphMapEntryType;
typedef nsTHashtable<CharGlyphMapEntryType> CharGlyphMap;
CharGlyphMap mCharGlyphCache;
};
#ifndef ANDROID // not needed on Android, uses the standard gfxFontGroup directly
class gfxFT2FontGroup : public gfxFontGroup {
public: // new functions
gfxFT2FontGroup (const nsAString& families,
const gfxFontStyle *aStyle,
gfxUserFontSet *aUserFontSet);
virtual ~gfxFT2FontGroup ();
protected: // from gfxFontGroup
virtual gfxFontGroup *Copy(const gfxFontStyle *aStyle);
protected: // new functions
static bool FontCallback (const nsAString & fontName,
const nsACString & genericName,
bool aUseFontSet,
void *closure);
bool mEnableKerning;
void GetPrefFonts(nsIAtom *aLangGroup,
nsTArray<nsRefPtr<gfxFontEntry> >& aFontEntryList);
void GetCJKPrefFonts(nsTArray<nsRefPtr<gfxFontEntry> >& aFontEntryList);
void FamilyListToArrayList(const nsString& aFamilies,
nsIAtom *aLangGroup,
nsTArray<nsRefPtr<gfxFontEntry> > *aFontEntryList);
already_AddRefed<gfxFT2Font> WhichFontSupportsChar(const nsTArray<nsRefPtr<gfxFontEntry> >& aFontEntryList,
uint32_t aCh);
already_AddRefed<gfxFont> WhichPrefFontSupportsChar(uint32_t aCh);
already_AddRefed<gfxFont>
WhichSystemFontSupportsChar(uint32_t aCh, int32_t aRunScript);
nsTArray<gfxTextRange> mRanges;
nsString mString;
};
#endif // !ANDROID
#endif /* GFX_FT2FONTS_H */