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_PANGOFONTS_H
michael@0: #define GFX_PANGOFONTS_H
michael@0: 
michael@0: #include "cairo.h"
michael@0: #include "gfxTypes.h"
michael@0: #include "gfxFont.h"
michael@0: 
michael@0: #include "nsAutoRef.h"
michael@0: #include "nsTArray.h"
michael@0: 
michael@0: #include <pango/pango.h>
michael@0: 
michael@0: class gfxFcFontSet;
michael@0: class gfxFcFont;
michael@0: class gfxProxyFontEntry;
michael@0: typedef struct _FcPattern FcPattern;
michael@0: typedef struct FT_FaceRec_* FT_Face;
michael@0: typedef struct FT_LibraryRec_  *FT_Library;
michael@0: 
michael@0: class gfxPangoFontGroup : public gfxFontGroup {
michael@0: public:
michael@0:     gfxPangoFontGroup (const nsAString& families,
michael@0:                        const gfxFontStyle *aStyle,
michael@0:                        gfxUserFontSet *aUserFontSet);
michael@0:     virtual ~gfxPangoFontGroup ();
michael@0: 
michael@0:     virtual gfxFontGroup *Copy(const gfxFontStyle *aStyle);
michael@0: 
michael@0:     virtual gfxFont *GetFontAt(int32_t i);
michael@0: 
michael@0:     virtual void UpdateFontList();
michael@0: 
michael@0:     virtual already_AddRefed<gfxFont>
michael@0:         FindFontForChar(uint32_t aCh, uint32_t aPrevCh, int32_t aRunScript,
michael@0:                         gfxFont *aPrevMatchedFont,
michael@0:                         uint8_t *aMatchType);
michael@0: 
michael@0:     static void Shutdown();
michael@0: 
michael@0:     // Used for @font-face { src: local(); }
michael@0:     static gfxFontEntry *NewFontEntry(const gfxProxyFontEntry &aProxyEntry,
michael@0:                                       const nsAString &aFullname);
michael@0:     // Used for @font-face { src: url(); }
michael@0:     static gfxFontEntry *NewFontEntry(const gfxProxyFontEntry &aProxyEntry,
michael@0:                                       const uint8_t *aFontData,
michael@0:                                       uint32_t aLength);
michael@0: 
michael@0: private:
michael@0:     // @param aLang [in] language to use for pref fonts and system default font
michael@0:     //        selection, or nullptr for the language guessed from the
michael@0:     //        gfxFontStyle.
michael@0:     // The FontGroup holds a reference to this set.
michael@0:     gfxFcFontSet *GetFontSet(PangoLanguage *aLang = nullptr);
michael@0: 
michael@0:     class FontSetByLangEntry {
michael@0:     public:
michael@0:         FontSetByLangEntry(PangoLanguage *aLang, gfxFcFontSet *aFontSet);
michael@0:         PangoLanguage *mLang;
michael@0:         nsRefPtr<gfxFcFontSet> mFontSet;
michael@0:     };
michael@0:     // There is only one of entry in this array unless characters from scripts
michael@0:     // of other languages are measured.
michael@0:     nsAutoTArray<FontSetByLangEntry,1> mFontSets;
michael@0: 
michael@0:     gfxFloat mSizeAdjustFactor;
michael@0:     PangoLanguage *mPangoLanguage;
michael@0: 
michael@0:     void GetFcFamilies(nsTArray<nsString> *aFcFamilyList,
michael@0:                        nsIAtom *aLanguage);
michael@0: 
michael@0:     // @param aLang [in] language to use for pref fonts and system font
michael@0:     //        resolution, or nullptr to guess a language from the gfxFontStyle.
michael@0:     // @param aMatchPattern [out] if non-nullptr, will return the pattern used.
michael@0:     already_AddRefed<gfxFcFontSet>
michael@0:     MakeFontSet(PangoLanguage *aLang, gfxFloat aSizeAdjustFactor,
michael@0:                 nsAutoRef<FcPattern> *aMatchPattern = nullptr);
michael@0: 
michael@0:     gfxFcFontSet *GetBaseFontSet();
michael@0:     gfxFcFont *GetBaseFont();
michael@0: 
michael@0:     gfxFloat GetSizeAdjustFactor()
michael@0:     {
michael@0:         if (mFontSets.Length() == 0)
michael@0:             GetBaseFontSet();
michael@0:         return mSizeAdjustFactor;
michael@0:     }
michael@0: 
michael@0:     friend class gfxSystemFcFontEntry;
michael@0:     static FT_Library GetFTLibrary();
michael@0: };
michael@0: 
michael@0: #endif /* GFX_PANGOFONTS_H */