/* -*- 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_PATHRECORDING_H_ #define MOZILLA_GFX_PATHRECORDING_H_ #include "2D.h" #include <vector> #include <ostream> #include "PathHelpers.h" namespace mozilla { namespace gfx { struct PathOp { enum OpType { OP_MOVETO = 0, OP_LINETO, OP_BEZIERTO, OP_QUADRATICBEZIERTO, OP_CLOSE }; OpType mType; Point mP1; Point mP2; Point mP3; }; const int32_t sPointCount[] = { 1, 1, 3, 2, 0, 0 }; class PathRecording; class DrawEventRecorderPrivate; class PathBuilderRecording : public PathBuilder { public: MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(PathBuilderRecording) PathBuilderRecording(PathBuilder *aBuilder, FillRule aFillRule) : mPathBuilder(aBuilder), mFillRule(aFillRule) { } /* Move the current point in the path, any figure currently being drawn will * be considered closed during fill operations, however when stroking the * closing line segment will not be drawn. */ virtual void MoveTo(const Point &aPoint); /* Add a linesegment to the current figure */ virtual void LineTo(const Point &aPoint); /* Add a cubic bezier curve to the current figure */ virtual void BezierTo(const Point &aCP1, const Point &aCP2, const Point &aCP3); /* Add a quadratic bezier curve to the current figure */ virtual void QuadraticBezierTo(const Point &aCP1, const Point &aCP2); /* Close the current figure, this will essentially generate a line segment * from the current point to the starting point for the current figure */ virtual void Close(); /* Add an arc to the current figure */ virtual void Arc(const Point &aOrigin, float aRadius, float aStartAngle, float aEndAngle, bool aAntiClockwise) { ArcToBezier(this, aOrigin, Size(aRadius, aRadius), aStartAngle, aEndAngle, aAntiClockwise); } /* Point the current subpath is at - or where the next subpath will start * if there is no active subpath. */ virtual Point CurrentPoint() const; virtual already_AddRefed<Path> Finish(); virtual BackendType GetBackendType() const { return BackendType::RECORDING; } private: friend class PathRecording; RefPtr<PathBuilder> mPathBuilder; FillRule mFillRule; std::vector<PathOp> mPathOps; }; class PathRecording : public Path { public: MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(PathRecording) PathRecording(Path *aPath, const std::vector<PathOp> aOps, FillRule aFillRule) : mPath(aPath), mPathOps(aOps), mFillRule(aFillRule) { } ~PathRecording(); virtual BackendType GetBackendType() const { return BackendType::RECORDING; } 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 { return mPath->ContainsPoint(aPoint, aTransform); } virtual bool StrokeContainsPoint(const StrokeOptions &aStrokeOptions, const Point &aPoint, const Matrix &aTransform) const { return mPath->StrokeContainsPoint(aStrokeOptions, aPoint, aTransform); } virtual Rect GetBounds(const Matrix &aTransform = Matrix()) const { return mPath->GetBounds(aTransform); } virtual Rect GetStrokedBounds(const StrokeOptions &aStrokeOptions, const Matrix &aTransform = Matrix()) const { return mPath->GetStrokedBounds(aStrokeOptions, aTransform); } virtual void StreamToSink(PathSink *aSink) const { mPath->StreamToSink(aSink); } virtual FillRule GetFillRule() const { return mFillRule; } void StorePath(std::ostream &aStream) const; static void ReadPathToBuilder(std::istream &aStream, PathBuilder *aBuilder); private: friend class DrawTargetRecording; friend class RecordedPathCreation; RefPtr<Path> mPath; std::vector<PathOp> mPathOps; FillRule mFillRule; // Event recorders that have this path in their event stream. std::vector<RefPtr<DrawEventRecorderPrivate>> mStoredRecorders; }; } // namespace gfx } // namespace mozilla #endif /* MOZILLA_GFX_PATHRECORDING_H_ */