/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- * 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) explicit PathBuilderCairo(FillRule aFillRule); 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 Point CurrentPoint() const; virtual already_AddRefed<Path> Finish(); virtual BackendType GetBackendType() const { return BackendType::CAIRO; } private: // data friend class PathCairo; FillRule mFillRule; std::vector<cairo_path_data_t> mPathData; // It's easiest to track this here, parsing the path data to find the current // point is a little tricky. Point mCurrentPoint; Point mBeginPoint; }; class PathCairo : public Path { public: MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(PathCairo) PathCairo(FillRule aFillRule, std::vector<cairo_path_data_t> &aPathData, const Point &aCurrentPoint); explicit PathCairo(cairo_t *aContext); ~PathCairo(); virtual BackendType GetBackendType() const { return BackendType::CAIRO; } 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; } 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; }; } // namespace gfx } // namespace mozilla #endif /* MOZILLA_GFX_PATH_CAIRO_H_ */