gecko-dev/gfx/2d/PathD2D.h

/* -*- 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_PATHD2D_H_
#define MOZILLA_GFX_PATHD2D_H_

#include <d2d1.h>

#include "2D.h"

namespace mozilla {
namespace gfx {

class PathD2D;

class PathBuilderD2D : public PathBuilder {
 public:
  MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(PathBuilderD2D, override)
  PathBuilderD2D(ID2D1GeometrySink* aSink, ID2D1PathGeometry* aGeom,
                 FillRule aFillRule, BackendType aBackendType)
      : mSink(aSink),
        mGeometry(aGeom),
        mFigureActive(false),
        mFillRule(aFillRule),
        mBackendType(aBackendType) {}
  virtual ~PathBuilderD2D();

  virtual void MoveTo(const Point& aPoint);
  virtual void LineTo(const Point& aPoint);
  virtual void BezierTo(const Point& aCP1, const Point& aCP2,
                        const Point& aCP3);
  virtual void QuadraticBezierTo(const Point& aCP1, const Point& aCP2);
  virtual void Close();
  virtual void Arc(const Point& aOrigin, Float aRadius, Float aStartAngle,
                   Float aEndAngle, bool aAntiClockwise = false);

  virtual already_AddRefed<Path> Finish();

  virtual BackendType GetBackendType() const { return mBackendType; }

  ID2D1GeometrySink* GetSink() { return mSink; }

  bool IsFigureActive() const { return mFigureActive; }

  static already_AddRefed<PathBuilder> Create(FillRule aFillRule);

 private:
  friend class PathD2D;

  void EnsureActive(const Point& aPoint);

  RefPtr<ID2D1GeometrySink> mSink;
  RefPtr<ID2D1PathGeometry> mGeometry;

  bool mFigureActive;
  FillRule mFillRule;
  BackendType mBackendType;
};

class PathD2D : public Path {
 public:
  MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(PathD2D, override)
  PathD2D(ID2D1PathGeometry* aGeometry, bool aEndedActive,
          const Point& aEndPoint, FillRule aFillRule, BackendType aBackendType)
      : mGeometry(aGeometry),
        mEndedActive(aEndedActive),
        mEndPoint(aEndPoint),
        mFillRule(aFillRule),
        mBackendType(aBackendType) {}

  virtual BackendType GetBackendType() const { return mBackendType; }

  virtual already_AddRefed<PathBuilder> CopyToBuilder(FillRule aFillRule) const;
  virtual already_AddRefed<PathBuilder> TransformedCopyToBuilder(
      const Matrix& aTransform, FillRule aFillRule) const;

  virtual bool ContainsPoint(const Point& aPoint,
                             const Matrix& aTransform) const;

  virtual bool StrokeContainsPoint(const StrokeOptions& aStrokeOptions,
                                   const Point& aPoint,
                                   const Matrix& aTransform) const;

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

  virtual Rect GetStrokedBounds(const StrokeOptions& aStrokeOptions,
                                const Matrix& aTransform = Matrix()) const;

  virtual void StreamToSink(PathSink* aSink) const;

  virtual FillRule GetFillRule() const { return mFillRule; }

  ID2D1Geometry* GetGeometry() { return mGeometry; }

 private:
  friend class DrawTargetD2D;
  friend class DrawTargetD2D1;

  mutable RefPtr<ID2D1PathGeometry> mGeometry;
  bool mEndedActive;
  Point mEndPoint;
  FillRule mFillRule;
  BackendType mBackendType;
};

}  // namespace gfx
}  // namespace mozilla

#endif /* MOZILLA_GFX_PATHD2D_H_ */