1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/thebes/gfxPangoFonts.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,97 @@
1.4 +/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
1.5 + * This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef GFX_PANGOFONTS_H
1.10 +#define GFX_PANGOFONTS_H
1.11 +
1.12 +#include "cairo.h"
1.13 +#include "gfxTypes.h"
1.14 +#include "gfxFont.h"
1.15 +
1.16 +#include "nsAutoRef.h"
1.17 +#include "nsTArray.h"
1.18 +
1.19 +#include <pango/pango.h>
1.20 +
1.21 +class gfxFcFontSet;
1.22 +class gfxFcFont;
1.23 +class gfxProxyFontEntry;
1.24 +typedef struct _FcPattern FcPattern;
1.25 +typedef struct FT_FaceRec_* FT_Face;
1.26 +typedef struct FT_LibraryRec_ *FT_Library;
1.27 +
1.28 +class gfxPangoFontGroup : public gfxFontGroup {
1.29 +public:
1.30 + gfxPangoFontGroup (const nsAString& families,
1.31 + const gfxFontStyle *aStyle,
1.32 + gfxUserFontSet *aUserFontSet);
1.33 + virtual ~gfxPangoFontGroup ();
1.34 +
1.35 + virtual gfxFontGroup *Copy(const gfxFontStyle *aStyle);
1.36 +
1.37 + virtual gfxFont *GetFontAt(int32_t i);
1.38 +
1.39 + virtual void UpdateFontList();
1.40 +
1.41 + virtual already_AddRefed<gfxFont>
1.42 + FindFontForChar(uint32_t aCh, uint32_t aPrevCh, int32_t aRunScript,
1.43 + gfxFont *aPrevMatchedFont,
1.44 + uint8_t *aMatchType);
1.45 +
1.46 + static void Shutdown();
1.47 +
1.48 + // Used for @font-face { src: local(); }
1.49 + static gfxFontEntry *NewFontEntry(const gfxProxyFontEntry &aProxyEntry,
1.50 + const nsAString &aFullname);
1.51 + // Used for @font-face { src: url(); }
1.52 + static gfxFontEntry *NewFontEntry(const gfxProxyFontEntry &aProxyEntry,
1.53 + const uint8_t *aFontData,
1.54 + uint32_t aLength);
1.55 +
1.56 +private:
1.57 + // @param aLang [in] language to use for pref fonts and system default font
1.58 + // selection, or nullptr for the language guessed from the
1.59 + // gfxFontStyle.
1.60 + // The FontGroup holds a reference to this set.
1.61 + gfxFcFontSet *GetFontSet(PangoLanguage *aLang = nullptr);
1.62 +
1.63 + class FontSetByLangEntry {
1.64 + public:
1.65 + FontSetByLangEntry(PangoLanguage *aLang, gfxFcFontSet *aFontSet);
1.66 + PangoLanguage *mLang;
1.67 + nsRefPtr<gfxFcFontSet> mFontSet;
1.68 + };
1.69 + // There is only one of entry in this array unless characters from scripts
1.70 + // of other languages are measured.
1.71 + nsAutoTArray<FontSetByLangEntry,1> mFontSets;
1.72 +
1.73 + gfxFloat mSizeAdjustFactor;
1.74 + PangoLanguage *mPangoLanguage;
1.75 +
1.76 + void GetFcFamilies(nsTArray<nsString> *aFcFamilyList,
1.77 + nsIAtom *aLanguage);
1.78 +
1.79 + // @param aLang [in] language to use for pref fonts and system font
1.80 + // resolution, or nullptr to guess a language from the gfxFontStyle.
1.81 + // @param aMatchPattern [out] if non-nullptr, will return the pattern used.
1.82 + already_AddRefed<gfxFcFontSet>
1.83 + MakeFontSet(PangoLanguage *aLang, gfxFloat aSizeAdjustFactor,
1.84 + nsAutoRef<FcPattern> *aMatchPattern = nullptr);
1.85 +
1.86 + gfxFcFontSet *GetBaseFontSet();
1.87 + gfxFcFont *GetBaseFont();
1.88 +
1.89 + gfxFloat GetSizeAdjustFactor()
1.90 + {
1.91 + if (mFontSets.Length() == 0)
1.92 + GetBaseFontSet();
1.93 + return mSizeAdjustFactor;
1.94 + }
1.95 +
1.96 + friend class gfxSystemFcFontEntry;
1.97 + static FT_Library GetFTLibrary();
1.98 +};
1.99 +
1.100 +#endif /* GFX_PANGOFONTS_H */
