/* -*- 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_GDIFONTLIST_H #define GFX_GDIFONTLIST_H #include "mozilla/MemoryReporting.h" #include "gfxWindowsPlatform.h" #include "gfxPlatformFontList.h" #include "nsGkAtoms.h" #include <windows.h> class AutoDC // get the global device context, and auto-release it on destruction { public: AutoDC() { mDC = ::GetDC(nullptr); } ~AutoDC() { ::ReleaseDC(nullptr, mDC); } HDC GetDC() { return mDC; } private: HDC mDC; }; class AutoSelectFont // select a font into the given DC, and auto-restore { public: AutoSelectFont(HDC aDC, LOGFONTW *aLogFont) : mOwnsFont(false) { mFont = ::CreateFontIndirectW(aLogFont); if (mFont) { mOwnsFont = true; mDC = aDC; mOldFont = (HFONT)::SelectObject(aDC, mFont); } else { mOldFont = nullptr; } } AutoSelectFont(HDC aDC, HFONT aFont) : mOwnsFont(false) { mDC = aDC; mFont = aFont; mOldFont = (HFONT)::SelectObject(aDC, aFont); } ~AutoSelectFont() { if (mOldFont) { ::SelectObject(mDC, mOldFont); if (mOwnsFont) { ::DeleteObject(mFont); } } } bool IsValid() const { return mFont != nullptr; } HFONT GetFont() const { return mFont; } private: HDC mDC; HFONT mFont; HFONT mOldFont; bool mOwnsFont; }; /** * List of different types of fonts we support on Windows. * These can generally be lumped in to 3 categories where we have to * do special things: Really old fonts bitmap and vector fonts (device * and raster), Type 1 fonts, and TrueType/OpenType fonts. * * This list is sorted in order from least prefered to most prefered. * We prefer Type1 fonts over OpenType fonts to avoid falling back to * things like Arial (opentype) when you ask for Helvetica (type1) **/ enum gfxWindowsFontType { GFX_FONT_TYPE_UNKNOWN = 0, GFX_FONT_TYPE_DEVICE, GFX_FONT_TYPE_RASTER, GFX_FONT_TYPE_TRUETYPE, GFX_FONT_TYPE_PS_OPENTYPE, GFX_FONT_TYPE_TT_OPENTYPE, GFX_FONT_TYPE_TYPE1 }; // A single member of a font family (i.e. a single face, such as Times Italic) // represented as a LOGFONT that will resolve to the correct face. // This replaces FontEntry from gfxWindowsFonts.h/cpp. class GDIFontEntry : public gfxFontEntry { public: LPLOGFONTW GetLogFont() { return &mLogFont; } nsresult ReadCMAP(FontInfoData *aFontInfoData = nullptr); virtual bool IsSymbolFont(); void FillLogFont(LOGFONTW *aLogFont, uint16_t aWeight, gfxFloat aSize); static gfxWindowsFontType DetermineFontType(const NEWTEXTMETRICW& metrics, DWORD fontType) { gfxWindowsFontType feType; if (metrics.ntmFlags & NTM_TYPE1) feType = GFX_FONT_TYPE_TYPE1; else if (metrics.ntmFlags & NTM_PS_OPENTYPE) feType = GFX_FONT_TYPE_PS_OPENTYPE; else if (metrics.ntmFlags & NTM_TT_OPENTYPE) feType = GFX_FONT_TYPE_TT_OPENTYPE; else if (fontType == TRUETYPE_FONTTYPE) feType = GFX_FONT_TYPE_TRUETYPE; else if (fontType == RASTER_FONTTYPE) feType = GFX_FONT_TYPE_RASTER; else if (fontType == DEVICE_FONTTYPE) feType = GFX_FONT_TYPE_DEVICE; else feType = GFX_FONT_TYPE_UNKNOWN; return feType; } bool IsType1() const { return (mFontType == GFX_FONT_TYPE_TYPE1); } bool IsTrueType() const { return (mFontType == GFX_FONT_TYPE_TRUETYPE || mFontType == GFX_FONT_TYPE_PS_OPENTYPE || mFontType == GFX_FONT_TYPE_TT_OPENTYPE); } virtual bool MatchesGenericFamily(const nsACString& aGeneric) const { if (aGeneric.IsEmpty()) { return true; } // Japanese 'Mincho' fonts do not belong to FF_MODERN even if // they are fixed pitch because they have variable stroke width. if (mWindowsFamily == FF_ROMAN && mWindowsPitch & FIXED_PITCH) { return aGeneric.EqualsLiteral("monospace"); } // Japanese 'Gothic' fonts do not belong to FF_SWISS even if // they are variable pitch because they have constant stroke width. if (mWindowsFamily == FF_MODERN && mWindowsPitch & VARIABLE_PITCH) { return aGeneric.EqualsLiteral("sans-serif"); } // All other fonts will be grouped correctly using family... switch (mWindowsFamily) { case FF_DONTCARE: return false; case FF_ROMAN: return aGeneric.EqualsLiteral("serif"); case FF_SWISS: return aGeneric.EqualsLiteral("sans-serif"); case FF_MODERN: return aGeneric.EqualsLiteral("monospace"); case FF_SCRIPT: return aGeneric.EqualsLiteral("cursive"); case FF_DECORATIVE: return aGeneric.EqualsLiteral("fantasy"); } return false; } virtual bool SupportsLangGroup(nsIAtom* aLangGroup) const override { if (!aLangGroup || aLangGroup == nsGkAtoms::Unicode) { return true; } int16_t bit = -1; /* map our langgroup names in to Windows charset bits */ if (aLangGroup == nsGkAtoms::x_western) { bit = ANSI_CHARSET; } else if (aLangGroup == nsGkAtoms::Japanese) { bit = SHIFTJIS_CHARSET; } else if (aLangGroup == nsGkAtoms::ko) { bit = HANGEUL_CHARSET; } else if (aLangGroup == nsGkAtoms::zh_cn) { bit = GB2312_CHARSET; } else if (aLangGroup == nsGkAtoms::zh_tw) { bit = CHINESEBIG5_CHARSET; } else if (aLangGroup == nsGkAtoms::el_) { bit = GREEK_CHARSET; } else if (aLangGroup == nsGkAtoms::he) { bit = HEBREW_CHARSET; } else if (aLangGroup == nsGkAtoms::ar) { bit = ARABIC_CHARSET; } else if (aLangGroup == nsGkAtoms::x_cyrillic) { bit = RUSSIAN_CHARSET; } else if (aLangGroup == nsGkAtoms::th) { bit = THAI_CHARSET; } if (bit != -1) { return mCharset.test(bit); } return false; } virtual bool SupportsRange(uint8_t range) { return mUnicodeRanges.test(range); } virtual bool SkipDuringSystemFallback() { return !HasCmapTable(); // explicitly skip non-SFNT fonts } virtual bool TestCharacterMap(uint32_t aCh); virtual void AddSizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf, FontListSizes* aSizes) const; // create a font entry for a font with a given name static GDIFontEntry* CreateFontEntry(const nsAString& aName, gfxWindowsFontType aFontType, uint8_t aStyle, uint16_t aWeight, int16_t aStretch, gfxUserFontData* aUserFontData, bool aFamilyHasItalicFace); // create a font entry for a font referenced by its fullname static GDIFontEntry* LoadLocalFont(const nsAString& aFontName, uint16_t aWeight, int16_t aStretch, uint8_t aStyle); uint8_t mWindowsFamily; uint8_t mWindowsPitch; gfxWindowsFontType mFontType; bool mForceGDI : 1; // For src:local user-fonts, we keep track of whether the platform family // contains an italic face, because in this case we can't safely ask GDI // to create synthetic italics (oblique) via the LOGFONT. // (For other types of font, this is just set to false.) bool mFamilyHasItalicFace : 1; gfxSparseBitSet mCharset; gfxSparseBitSet mUnicodeRanges; protected: friend class gfxWindowsFont; GDIFontEntry(const nsAString& aFaceName, gfxWindowsFontType aFontType, uint8_t aStyle, uint16_t aWeight, int16_t aStretch, gfxUserFontData *aUserFontData, bool aFamilyHasItalicFace); void InitLogFont(const nsAString& aName, gfxWindowsFontType aFontType); virtual gfxFont *CreateFontInstance(const gfxFontStyle *aFontStyle, bool aNeedsBold); virtual nsresult CopyFontTable(uint32_t aTableTag, nsTArray<uint8_t>& aBuffer) override; LOGFONTW mLogFont; }; // a single font family, referencing one or more faces class GDIFontFamily : public gfxFontFamily { public: GDIFontFamily(nsAString &aName) : gfxFontFamily(aName) {} virtual void FindStyleVariations(FontInfoData *aFontInfoData = nullptr); private: static int CALLBACK FamilyAddStylesProc(const ENUMLOGFONTEXW *lpelfe, const NEWTEXTMETRICEXW *nmetrics, DWORD fontType, LPARAM data); }; class gfxGDIFontList : public gfxPlatformFontList { public: static gfxGDIFontList* PlatformFontList() { return static_cast<gfxGDIFontList*>(sPlatformFontList); } // initialize font lists virtual nsresult InitFontListForPlatform() override; bool FindAndAddFamilies(const nsAString& aFamily, nsTArray<gfxFontFamily*>* aOutput, gfxFontStyle* aStyle = nullptr, gfxFloat aDevToCssSize = 1.0) override; virtual gfxFontEntry* LookupLocalFont(const nsAString& aFontName, uint16_t aWeight, int16_t aStretch, uint8_t aStyle); virtual gfxFontEntry* MakePlatformFont(const nsAString& aFontName, uint16_t aWeight, int16_t aStretch, uint8_t aStyle, const uint8_t* aFontData, uint32_t aLength); virtual void AddSizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf, FontListSizes* aSizes) const; virtual void AddSizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf, FontListSizes* aSizes) const; protected: virtual gfxFontFamily* GetDefaultFontForPlatform(const gfxFontStyle* aStyle) override; private: friend class gfxWindowsPlatform; gfxGDIFontList(); nsresult GetFontSubstitutes(); static int CALLBACK EnumFontFamExProc(ENUMLOGFONTEXW *lpelfe, NEWTEXTMETRICEXW *lpntme, DWORD fontType, LPARAM lParam); virtual already_AddRefed<FontInfoData> CreateFontInfoData(); #ifdef MOZ_BUNDLED_FONTS void ActivateBundledFonts(); #endif FontFamilyTable mFontSubstitutes; nsTArray<nsString> mNonExistingFonts; }; #endif /* GFX_GDIFONTLIST_H */