PathSkia.h - mozsearch

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/* -*- 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_PATH_SKIA_H_

#define MOZILLA_GFX_PATH_SKIA_H_

#include "2D.h"

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

namespace mozilla {

namespace gfx {

class PathSkia;

class PathBuilderSkia : public PathBuilder {

 public:

  MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(PathBuilderSkia, override)

  PathBuilderSkia(const Matrix& aTransform, const SkPath& aPath,

                  FillRule aFillRule);

  explicit PathBuilderSkia(FillRule aFillRule);

  void MoveTo(const Point& aPoint) override;

  void LineTo(const Point& aPoint) override;

  void BezierTo(const Point& aCP1, const Point& aCP2,

                const Point& aCP3) override;

  void QuadraticBezierTo(const Point& aCP1, const Point& aCP2) override;

  void Close() override;

  void Arc(const Point& aOrigin, float aRadius, float aStartAngle,

           float aEndAngle, bool aAntiClockwise = false) override;

  already_AddRefed<Path> Finish() override;

  void AppendPath(const SkPath& aPath);

  BackendType GetBackendType() const override { return BackendType::SKIA; }

  bool IsActive() const override { return mPath.countPoints() > 0; }

  static already_AddRefed<PathBuilder> Create(FillRule aFillRule);

 private:

  friend class PathSkia;

  void SetFillRule(FillRule aFillRule);

  SkPath mPath;

  FillRule mFillRule;

};

class PathSkia : public Path {

 public:

  MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(PathSkia, override)

  PathSkia(SkPath& aPath, FillRule aFillRule, Point aCurrentPoint = Point(),

           Point aBeginPoint = Point())

      : mFillRule(aFillRule),

        mCurrentPoint(aCurrentPoint),

        mBeginPoint(aBeginPoint) {

    mPath.swap(aPath);

  BackendType GetBackendType() const override { return BackendType::SKIA; }

  already_AddRefed<PathBuilder> CopyToBuilder(

      FillRule aFillRule) const override;

  already_AddRefed<PathBuilder> TransformedCopyToBuilder(

      const Matrix& aTransform, FillRule aFillRule) const override;

  bool ContainsPoint(const Point& aPoint,

                     const Matrix& aTransform) const override;

  bool StrokeContainsPoint(const StrokeOptions& aStrokeOptions,

                           const Point& aPoint,

                           const Matrix& aTransform) const override;

  Rect GetBounds(const Matrix& aTransform = Matrix()) const override;

  Rect GetStrokedBounds(const StrokeOptions& aStrokeOptions,

                        const Matrix& aTransform = Matrix()) const override;

  Rect GetFastBounds(

      const Matrix& aTransform = Matrix(),

      const StrokeOptions* aStrokeOptions = nullptr) const override;

  void StreamToSink(PathSink* aSink) const override;

  FillRule GetFillRule() const override { return mFillRule; }

  const SkPath& GetPath() const { return mPath; }

  Maybe<Rect> AsRect() const override;

  bool GetFillPath(const StrokeOptions& aStrokeOptions,

                   const Matrix& aTransform, SkPath& aFillPath,

                   const Maybe<Rect>& aClipRect = Nothing()) const;

  bool IsEmpty() const override;

 private:

  friend class DrawTargetSkia;

  SkPath mPath;

  FillRule mFillRule;

  Point mCurrentPoint;

  Point mBeginPoint;

};

}  // namespace gfx

}  // namespace mozilla

#endif /* MOZILLA_GFX_PATH_SKIA_H_ */