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89 lines
3.0 KiB
C++
89 lines
3.0 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_MACFONT_H
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#define GFX_MACFONT_H
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#include "gfxFont.h"
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#include "gfxMacPlatformFontList.h"
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#include "mozilla/gfx/2D.h"
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#include "cairo.h"
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class gfxMacFont : public gfxFont
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{
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public:
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gfxMacFont(MacOSFontEntry *aFontEntry, const gfxFontStyle *aFontStyle,
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bool aNeedsBold);
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virtual ~gfxMacFont();
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CGFontRef GetCGFontRef() const { return mCGFont; }
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/* overrides for the pure virtual methods in gfxFont */
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virtual const gfxFont::Metrics& GetMetrics() {
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return mMetrics;
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}
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virtual PRUint32 GetSpaceGlyph() {
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return mSpaceGlyph;
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}
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virtual bool SetupCairoFont(gfxContext *aContext);
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/* override Measure to add padding for antialiasing */
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virtual RunMetrics Measure(gfxTextRun *aTextRun,
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PRUint32 aStart, PRUint32 aEnd,
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BoundingBoxType aBoundingBoxType,
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gfxContext *aContextForTightBoundingBox,
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Spacing *aSpacing);
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// override gfxFont table access function to bypass gfxFontEntry cache,
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// use CGFontRef API to get direct access to system font data
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virtual hb_blob_t *GetFontTable(PRUint32 aTag);
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mozilla::RefPtr<mozilla::gfx::ScaledFont> GetScaledFont();
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virtual void SizeOfExcludingThis(nsMallocSizeOfFun aMallocSizeOf,
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FontCacheSizes* aSizes) const;
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virtual void SizeOfIncludingThis(nsMallocSizeOfFun aMallocSizeOf,
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FontCacheSizes* aSizes) const;
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virtual FontType GetType() const { return FONT_TYPE_MAC; }
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protected:
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virtual void CreatePlatformShaper();
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// override to prefer CoreText shaping with fonts that depend on AAT
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virtual bool ShapeWord(gfxContext *aContext,
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gfxShapedWord *aShapedWord,
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const PRUnichar *aText,
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bool aPreferPlatformShaping = false);
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void InitMetrics();
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void InitMetricsFromPlatform();
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void InitMetricsFromATSMetrics(ATSFontRef aFontRef);
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// Get width and glyph ID for a character; uses aConvFactor
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// to convert font units as returned by CG to actual dimensions
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gfxFloat GetCharWidth(CFDataRef aCmap, PRUnichar aUniChar,
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PRUint32 *aGlyphID, gfxFloat aConvFactor);
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static void DestroyBlobFunc(void* aUserData);
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// a weak reference to the CoreGraphics font: this is owned by the
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// MacOSFontEntry, it is not retained or released by gfxMacFont
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CGFontRef mCGFont;
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cairo_font_face_t *mFontFace;
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Metrics mMetrics;
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PRUint32 mSpaceGlyph;
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mozilla::RefPtr<mozilla::gfx::ScaledFont> mAzureFont;
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};
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#endif /* GFX_MACFONT_H */
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