1 files changed, 97 insertions, 0 deletions
diff --git a/gfx/2d/PathCairo.h b/gfx/2d/PathCairo.h
new file mode 100644
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+++ b/gfx/2d/PathCairo.h
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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_CAIRO_H_
+#define MOZILLA_GFX_PATH_CAIRO_H_
+
+#include "2D.h"
+#include "cairo.h"
+#include <vector>
+
+namespace mozilla {
+namespace gfx {
+
+class PathCairo;
+
+class PathBuilderCairo : public PathBuilder {
+ public:
+  MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(PathBuilderCairo, override)
+
+  explicit PathBuilderCairo(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;
+
+  BackendType GetBackendType() const override { return BackendType::CAIRO; }
+
+  static already_AddRefed<PathBuilder> Create(FillRule aFillRule);
+
+ private:  // data
+  friend class PathCairo;
+
+  FillRule mFillRule;
+  std::vector<cairo_path_data_t> mPathData;
+};
+
+class PathCairo : public Path {
+ public:
+  MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(PathCairo, override)
+
+  PathCairo(FillRule aFillRule, std::vector<cairo_path_data_t>& aPathData,
+            const Point& aCurrentPoint, const Point& aBeginPoint);
+  explicit PathCairo(cairo_t* aContext);
+  virtual ~PathCairo();
+
+  BackendType GetBackendType() const override { return BackendType::CAIRO; }
+
+  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;
+
+  void StreamToSink(PathSink* aSink) const override;
+
+  FillRule GetFillRule() const override { return mFillRule; }
+
+  void SetPathOnContext(cairo_t* aContext) const;
+
+  void AppendPathToBuilder(PathBuilderCairo* aBuilder,
+                           const Matrix* aTransform = nullptr) const;
+
+ private:
+  void EnsureContainingContext(const Matrix& aTransform) const;
+
+  FillRule mFillRule;
+  std::vector<cairo_path_data_t> mPathData;
+  mutable cairo_t* mContainingContext;
+  mutable Matrix mContainingTransform;
+  Point mCurrentPoint;
+  Point mBeginPoint;
+};
+
+}  // namespace gfx
+}  // namespace mozilla
+
+#endif /* MOZILLA_GFX_PATH_CAIRO_H_ */