125 lines
4.4 KiB
C++
125 lines
4.4 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef GFX_FONTCONFIG_FONTS_H
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#define GFX_FONTCONFIG_FONTS_H
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#include "cairo.h"
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#include "gfxTypes.h"
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#include "gfxTextRun.h"
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#include "nsAutoRef.h"
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#include "nsTArray.h"
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#include <pango/pango.h>
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class gfxFcFontSet;
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class gfxFcFont;
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typedef struct _FcPattern FcPattern;
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typedef struct FT_FaceRec_* FT_Face;
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typedef struct FT_LibraryRec_ *FT_Library;
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class gfxPangoFontGroup : public gfxFontGroup {
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public:
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gfxPangoFontGroup(const mozilla::FontFamilyList& aFontFamilyList,
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const gfxFontStyle *aStyle,
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gfxUserFontSet *aUserFontSet,
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gfxFloat aDevToCssSize);
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virtual ~gfxPangoFontGroup();
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virtual gfxFontGroup *Copy(const gfxFontStyle *aStyle);
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virtual gfxFont* GetFirstValidFont(uint32_t aCh = 0x20);
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virtual void UpdateUserFonts();
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virtual already_AddRefed<gfxFont>
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FindFontForChar(uint32_t aCh, uint32_t aPrevCh, uint32_t aNextCh,
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Script aRunScript, gfxFont *aPrevMatchedFont,
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uint8_t *aMatchType);
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static void Shutdown();
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// Used for @font-face { src: local(); }
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static gfxFontEntry *NewFontEntry(const nsAString& aFontName,
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uint16_t aWeight,
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int16_t aStretch,
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uint8_t aStyle);
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// Used for @font-face { src: url(); }
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static gfxFontEntry *NewFontEntry(const nsAString& aFontName,
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uint16_t aWeight,
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int16_t aStretch,
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uint8_t aStyle,
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const uint8_t* aFontData,
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uint32_t aLength);
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private:
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virtual gfxFont *GetFontAt(int32_t i, uint32_t aCh = 0x20);
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// @param aLang [in] language to use for pref fonts and system default font
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// selection, or nullptr for the language guessed from the
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// gfxFontStyle.
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// The FontGroup holds a reference to this set.
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gfxFcFontSet *GetFontSet(PangoLanguage *aLang = nullptr);
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class FontSetByLangEntry {
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public:
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FontSetByLangEntry(PangoLanguage *aLang, gfxFcFontSet *aFontSet);
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PangoLanguage *mLang;
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RefPtr<gfxFcFontSet> mFontSet;
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};
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// There is only one of entry in this array unless characters from scripts
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// of other languages are measured.
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AutoTArray<FontSetByLangEntry,1> mFontSets;
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gfxFloat mSizeAdjustFactor;
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PangoLanguage *mPangoLanguage;
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// @param aLang [in] language to use for pref fonts and system font
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// resolution, or nullptr to guess a language from the gfxFontStyle.
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// @param aMatchPattern [out] if non-nullptr, will return the pattern used.
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already_AddRefed<gfxFcFontSet>
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MakeFontSet(PangoLanguage *aLang, gfxFloat aSizeAdjustFactor,
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nsAutoRef<FcPattern> *aMatchPattern = nullptr);
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gfxFcFontSet *GetBaseFontSet();
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gfxFcFont *GetBaseFont();
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gfxFloat GetSizeAdjustFactor()
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{
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if (mFontSets.Length() == 0)
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GetBaseFontSet();
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return mSizeAdjustFactor;
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}
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// old helper methods from gfxFontGroup, moved here so that those methods
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// can be revamped without affecting the legacy code here
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// iterate over the fontlist, lookup names and expand generics
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void EnumerateFontListPFG(nsIAtom *aLanguage, void *aClosure);
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// expand a generic to a list of specific names based on prefs
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void FindGenericFontsPFG(mozilla::FontFamilyType aGenericType,
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nsIAtom *aLanguage,
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void *aClosure);
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// lookup and add a font with a given name (i.e. *not* a generic!)
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void FindPlatformFontPFG(const nsAString& aName,
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bool aUseFontSet,
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void *aClosure);
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static void
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ResolveGenericFontNamesPFG(mozilla::FontFamilyType aGenericType,
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nsIAtom *aLanguage,
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nsTArray<nsString>& aGenericFamilies);
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friend class gfxSystemFcFontEntry;
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static FT_Library GetFTLibrary();
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};
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#endif /* GFX_FONTCONFIG_FONTS_H */
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