michael@0: /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
michael@0:  * This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef GFX_FT2FONTS_H
michael@0: #define GFX_FT2FONTS_H
michael@0: 
michael@0: #include "mozilla/MemoryReporting.h"
michael@0: #include "cairo.h"
michael@0: #include "gfxTypes.h"
michael@0: #include "gfxFont.h"
michael@0: #include "gfxFT2FontBase.h"
michael@0: #include "gfxContext.h"
michael@0: #include "gfxFontUtils.h"
michael@0: #include "gfxUserFontSet.h"
michael@0: 
michael@0: class FT2FontEntry;
michael@0: 
michael@0: class gfxFT2Font : public gfxFT2FontBase {
michael@0: public: // new functions
michael@0:     gfxFT2Font(cairo_scaled_font_t *aCairoFont,
michael@0:                FT2FontEntry *aFontEntry,
michael@0:                const gfxFontStyle *aFontStyle,
michael@0:                bool aNeedsBold);
michael@0:     virtual ~gfxFT2Font ();
michael@0: 
michael@0:     FT2FontEntry *GetFontEntry();
michael@0: 
michael@0:     static already_AddRefed<gfxFT2Font>
michael@0:     GetOrMakeFont(const nsAString& aName, const gfxFontStyle *aStyle,
michael@0:                   bool aNeedsBold = false);
michael@0: 
michael@0:     static already_AddRefed<gfxFT2Font>
michael@0:     GetOrMakeFont(FT2FontEntry *aFontEntry, const gfxFontStyle *aStyle,
michael@0:                   bool aNeedsBold = false);
michael@0: 
michael@0:     struct CachedGlyphData {
michael@0:         CachedGlyphData()
michael@0:             : glyphIndex(0xffffffffU) { }
michael@0: 
michael@0:         CachedGlyphData(uint32_t gid)
michael@0:             : glyphIndex(gid) { }
michael@0: 
michael@0:         uint32_t glyphIndex;
michael@0:         int32_t lsbDelta;
michael@0:         int32_t rsbDelta;
michael@0:         int32_t xAdvance;
michael@0:     };
michael@0: 
michael@0:     const CachedGlyphData* GetGlyphDataForChar(uint32_t ch) {
michael@0:         CharGlyphMapEntryType *entry = mCharGlyphCache.PutEntry(ch);
michael@0: 
michael@0:         if (!entry)
michael@0:             return nullptr;
michael@0: 
michael@0:         if (entry->mData.glyphIndex == 0xffffffffU) {
michael@0:             // this is a new entry, fill it
michael@0:             FillGlyphDataForChar(ch, &entry->mData);
michael@0:         }
michael@0: 
michael@0:         return &entry->mData;
michael@0:     }
michael@0: 
michael@0:     virtual void AddSizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf,
michael@0:                                         FontCacheSizes* aSizes) const;
michael@0:     virtual void AddSizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf,
michael@0:                                         FontCacheSizes* aSizes) const;
michael@0: 
michael@0: #ifdef USE_SKIA
michael@0:     virtual mozilla::TemporaryRef<mozilla::gfx::GlyphRenderingOptions> GetGlyphRenderingOptions();
michael@0: #endif
michael@0: 
michael@0: protected:
michael@0:     virtual bool ShapeText(gfxContext      *aContext,
michael@0:                            const char16_t *aText,
michael@0:                            uint32_t         aOffset,
michael@0:                            uint32_t         aLength,
michael@0:                            int32_t          aScript,
michael@0:                            gfxShapedText   *aShapedText,
michael@0:                            bool             aPreferPlatformShaping);
michael@0: 
michael@0:     void FillGlyphDataForChar(uint32_t ch, CachedGlyphData *gd);
michael@0: 
michael@0:     void AddRange(const char16_t *aText,
michael@0:                   uint32_t         aOffset,
michael@0:                   uint32_t         aLength,
michael@0:                   gfxShapedText   *aShapedText);
michael@0: 
michael@0:     typedef nsBaseHashtableET<nsUint32HashKey, CachedGlyphData> CharGlyphMapEntryType;
michael@0:     typedef nsTHashtable<CharGlyphMapEntryType> CharGlyphMap;
michael@0:     CharGlyphMap mCharGlyphCache;
michael@0: };
michael@0: 
michael@0: #ifndef ANDROID // not needed on Android, uses the standard gfxFontGroup directly
michael@0: class gfxFT2FontGroup : public gfxFontGroup {
michael@0: public: // new functions
michael@0:     gfxFT2FontGroup (const nsAString& families,
michael@0:                     const gfxFontStyle *aStyle,
michael@0:                     gfxUserFontSet *aUserFontSet);
michael@0:     virtual ~gfxFT2FontGroup ();
michael@0: 
michael@0: protected: // from gfxFontGroup
michael@0: 
michael@0:     virtual gfxFontGroup *Copy(const gfxFontStyle *aStyle);
michael@0: 
michael@0: 
michael@0: protected: // new functions
michael@0: 
michael@0:     static bool FontCallback (const nsAString & fontName, 
michael@0:                                 const nsACString & genericName, 
michael@0:                                 bool aUseFontSet,
michael@0:                                 void *closure);
michael@0:     bool mEnableKerning;
michael@0: 
michael@0:     void GetPrefFonts(nsIAtom *aLangGroup,
michael@0:                       nsTArray<nsRefPtr<gfxFontEntry> >& aFontEntryList);
michael@0:     void GetCJKPrefFonts(nsTArray<nsRefPtr<gfxFontEntry> >& aFontEntryList);
michael@0:     void FamilyListToArrayList(const nsString& aFamilies,
michael@0:                                nsIAtom *aLangGroup,
michael@0:                                nsTArray<nsRefPtr<gfxFontEntry> > *aFontEntryList);
michael@0:     already_AddRefed<gfxFT2Font> WhichFontSupportsChar(const nsTArray<nsRefPtr<gfxFontEntry> >& aFontEntryList,
michael@0:                                                        uint32_t aCh);
michael@0:     already_AddRefed<gfxFont> WhichPrefFontSupportsChar(uint32_t aCh);
michael@0:     already_AddRefed<gfxFont>
michael@0:         WhichSystemFontSupportsChar(uint32_t aCh, int32_t aRunScript);
michael@0: 
michael@0:     nsTArray<gfxTextRange> mRanges;
michael@0:     nsString mString;
michael@0: };
michael@0: #endif // !ANDROID
michael@0: 
michael@0: #endif /* GFX_FT2FONTS_H */
michael@0: