gecko-dev/gfx/2d/ScaledFontMac.h
Lee Salzman 2b03a82ba0 Bug 1584268 - only instantiate Cairo fonts when drawing to Cairo target. r=jfkthame
This removes a lot of old cruft in thebes to instantiate Cairo scaled fonts.
Instead, we only instantiate the Cairo scaled font inside Moz2D when we actually
need it for DrawTargetCairo. This thus gets rid of the duplicated code we had
inside both Moz2D and thebes to deal with Cairo scaled fonts.

Differential Revision: https://phabricator.services.mozilla.com/D47297

--HG--
extra : moz-landing-system : lando
2019-10-01 21:56:30 +00:00

97 lines
3.3 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 MOZILLA_GFX_SCALEDFONTMAC_H_
#define MOZILLA_GFX_SCALEDFONTMAC_H_
#ifdef MOZ_WIDGET_COCOA
# include <ApplicationServices/ApplicationServices.h>
#else
# include <CoreGraphics/CoreGraphics.h>
# include <CoreText/CoreText.h>
#endif
#include "2D.h"
#include "ScaledFontBase.h"
namespace mozilla {
namespace gfx {
class UnscaledFontMac;
class ScaledFontMac : public ScaledFontBase {
public:
MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(ScaledFontMac, override)
ScaledFontMac(CGFontRef aFont, const RefPtr<UnscaledFont>& aUnscaledFont, Float aSize,
bool aOwnsFont = false, const Color& aFontSmoothingBackgroundColor = Color(),
bool aUseFontSmoothing = true, bool aApplySyntheticBold = false);
~ScaledFontMac();
FontType GetType() const override { return FontType::MAC; }
#ifdef USE_SKIA
SkTypeface* CreateSkTypeface() override;
void SetupSkFontDrawOptions(SkFont& aFont) override;
#endif
already_AddRefed<Path> GetPathForGlyphs(const GlyphBuffer& aBuffer,
const DrawTarget* aTarget) override;
bool GetFontInstanceData(FontInstanceDataOutput aCb, void* aBaton) override;
bool GetWRFontInstanceOptions(Maybe<wr::FontInstanceOptions>* aOutOptions,
Maybe<wr::FontInstancePlatformOptions>* aOutPlatformOptions,
std::vector<FontVariation>* aOutVariations) override;
bool CanSerialize() override { return true; }
Color FontSmoothingBackgroundColor() { return mFontSmoothingBackgroundColor; }
#ifdef USE_CAIRO_SCALED_FONT
cairo_font_face_t* CreateCairoFontFace(cairo_font_options_t* aFontOptions) override;
#endif
private:
friend class DrawTargetSkia;
friend class UnscaledFontMac;
CGFontRef mFont;
CTFontRef mCTFont; // only created if CTFontDrawGlyphs is available, otherwise null
Color mFontSmoothingBackgroundColor;
bool mUseFontSmoothing;
bool mApplySyntheticBold;
struct InstanceData {
explicit InstanceData(ScaledFontMac* aScaledFont)
: mFontSmoothingBackgroundColor(aScaledFont->mFontSmoothingBackgroundColor),
mUseFontSmoothing(aScaledFont->mUseFontSmoothing),
mApplySyntheticBold(aScaledFont->mApplySyntheticBold) {}
InstanceData(const wr::FontInstanceOptions* aOptions,
const wr::FontInstancePlatformOptions* aPlatformOptions);
Color mFontSmoothingBackgroundColor;
bool mUseFontSmoothing;
bool mApplySyntheticBold;
};
typedef void(CTFontDrawGlyphsFuncT)(CTFontRef, const CGGlyph[], const CGPoint[], size_t,
CGContextRef);
static bool sSymbolLookupDone;
public:
// function pointer for CTFontDrawGlyphs, if available;
// initialized the first time a ScaledFontMac is created,
// so it will be valid by the time DrawTargetCG wants to use it
static CTFontDrawGlyphsFuncT* CTFontDrawGlyphsPtr;
};
} // namespace gfx
} // namespace mozilla
#endif /* MOZILLA_GFX_SCALEDFONTMAC_H_ */