gfx/2d/PathSkia.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef MOZILLA_GFX_PATH_SKIA_H_
   8 #define MOZILLA_GFX_PATH_SKIA_H_
   9
  10 #include "2D.h"
  11 #include "skia/include/core/SkPath.h"
  12
  13 namespace mozilla {
  14 namespace gfx {
  15
  16 class PathSkia;
  17
  18 class PathBuilderSkia : public PathBuilder {
  19  public:
  20   MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(PathBuilderSkia, override)
  21
  22   PathBuilderSkia(SkPath&& aPath, FillRule aFillRule,
  23                   const Point& aCurrentPoint, const Point& aBeginPoint);
  24   explicit PathBuilderSkia(FillRule aFillRule);
  25
  26   void MoveTo(const Point& aPoint) override;
  27   void LineTo(const Point& aPoint) override;
  28   void BezierTo(const Point& aCP1, const Point& aCP2,
  29                 const Point& aCP3) override;
  30   void QuadraticBezierTo(const Point& aCP1, const Point& aCP2) override;
  31   void Close() override;
  32   void Arc(const Point& aOrigin, float aRadius, float aStartAngle,
  33            float aEndAngle, bool aAntiClockwise = false) override;
  34   already_AddRefed<Path> Finish() override;
  35
  36   void AppendPath(const SkPath& aPath);
  37
  38   BackendType GetBackendType() const override { return BackendType::SKIA; }
  39
  40   bool IsActive() const override { return mPath.countPoints() > 0; }
  41
  42   static already_AddRefed<PathBuilder> Create(FillRule aFillRule);
  43
  44  private:
  45   friend class PathSkia;
  46
  47   void SetFillRule(FillRule aFillRule);
  48
  49   SkPath mPath;
  50   FillRule mFillRule;
  51 };
  52
  53 class PathSkia : public Path {
  54  public:
  55   MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(PathSkia, override)
  56
  57   PathSkia(SkPath& aPath, FillRule aFillRule, Point aCurrentPoint = Point(),
  58            Point aBeginPoint = Point())
  59       : mFillRule(aFillRule),
  60         mCurrentPoint(aCurrentPoint),
  61         mBeginPoint(aBeginPoint) {
  62     mPath.swap(aPath);
  63   }
  64
  65   BackendType GetBackendType() const override { return BackendType::SKIA; }
  66
  67   already_AddRefed<PathBuilder> CopyToBuilder(
  68       FillRule aFillRule) const override;
  69   already_AddRefed<PathBuilder> TransformedCopyToBuilder(
  70       const Matrix& aTransform, FillRule aFillRule) const override;
  71   already_AddRefed<PathBuilder> MoveToBuilder(FillRule aFillRule) override;
  72   already_AddRefed<PathBuilder> TransformedMoveToBuilder(
  73       const Matrix& aTransform, FillRule aFillRule) override;
  74
  75   bool ContainsPoint(const Point& aPoint,
  76                      const Matrix& aTransform) const override;
  77
  78   bool StrokeContainsPoint(const StrokeOptions& aStrokeOptions,
  79                            const Point& aPoint,
  80                            const Matrix& aTransform) const override;
  81
  82   Rect GetBounds(const Matrix& aTransform = Matrix()) const override;
  83
  84   Rect GetStrokedBounds(const StrokeOptions& aStrokeOptions,
  85                         const Matrix& aTransform = Matrix()) const override;
  86
  87   Rect GetFastBounds(
  88       const Matrix& aTransform = Matrix(),
  89       const StrokeOptions* aStrokeOptions = nullptr) const override;
  90
  91   void StreamToSink(PathSink* aSink) const override;
  92
  93   FillRule GetFillRule() const override { return mFillRule; }
  94
  95   const SkPath& GetPath() const { return mPath; }
  96
  97   Maybe<Rect> AsRect() const override;
  98
  99   bool GetFillPath(const StrokeOptions& aStrokeOptions,
 100                    const Matrix& aTransform, SkPath& aFillPath,
 101                    const Maybe<Rect>& aClipRect = Nothing()) const;
 102
 103   bool IsEmpty() const override;
 104
 105  private:
 106   friend class DrawTargetSkia;
 107
 108   SkPath mPath;
 109   FillRule mFillRule;
 110   Point mCurrentPoint;
 111   Point mBeginPoint;
 112 };
 113
 114 }  // namespace gfx
 115 }  // namespace mozilla
 116
 117 #endif /* MOZILLA_GFX_PATH_SKIA_H_ */