/* -*- 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_SCALEDFONTBASE_H_

#define MOZILLA_GFX_SCALEDFONTBASE_H_

#include "2D.h"

// Skia uses cairo_scaled_font_t as the internal font type in ScaledFont

#if defined(USE_SKIA) || defined(USE_CAIRO)

#define USE_CAIRO_SCALED_FONT

#endif

#ifdef USE_SKIA

#include "skia/include/core/SkPath.h"

#include "skia/include/core/SkTypeface.h"

#endif

#ifdef USE_CAIRO_SCALED_FONT

#include "cairo.h"

#endif

namespace mozilla {

namespace gfx {

class ScaledFontBase : public ScaledFont

{

public:

  MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(ScaledFontBase, override)

  ScaledFontBase(const RefPtr<UnscaledFont>& aUnscaledFont, Float aSize);

  virtual ~ScaledFontBase();

  virtual already_AddRefed<Path> GetPathForGlyphs(const GlyphBuffer &aBuffer, const DrawTarget *aTarget) override;

  virtual void CopyGlyphsToBuilder(const GlyphBuffer &aBuffer, PathBuilder *aBuilder, const Matrix *aTransformHint) override;

  virtual void GetGlyphDesignMetrics(const uint16_t* aGlyphIndices, uint32_t aNumGlyphs, GlyphMetrics* aGlyphMetrics) override;

  virtual Float GetSize() const override { return mSize; }

#ifdef USE_SKIA

  SkTypeface* GetSkTypeface();

#endif

#ifdef USE_CAIRO_SCALED_FONT

  bool PopulateCairoScaledFont();

  virtual cairo_scaled_font_t* GetCairoScaledFont() override { return mScaledFont; }

  virtual void SetCairoScaledFont(cairo_scaled_font_t* font) override;

#endif

protected:

  friend class DrawTargetSkia;

#ifdef USE_SKIA

  Atomic<SkTypeface*> mTypeface;

  virtual SkTypeface* CreateSkTypeface() { return nullptr; }

  SkPath GetSkiaPathForGlyphs(const GlyphBuffer &aBuffer);

#endif

#ifdef USE_CAIRO_SCALED_FONT

  // Overridders should ensure the cairo_font_face_t has been addrefed.

  virtual cairo_font_face_t* GetCairoFontFace() { return nullptr; }

  cairo_scaled_font_t* mScaledFont;

#endif

  Float mSize;

};

} // namespace gfx

} // namespace mozilla

#endif /* MOZILLA_GFX_SCALEDFONTBASE_H_ */