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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_PATHCAPTURE_H_
#define MOZILLA_GFX_PATHCAPTURE_H_
#include "2D.h"
#include <vector>
#include <ostream>
#include "PathHelpers.h"
namespace mozilla {
namespace gfx {
class PathCapture;
class PathBuilderCapture : public PathBuilder {
public:
MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(PathBuilderCapture, override)
PathBuilderCapture(FillRule aFillRule, DrawTarget* aDT)
: mFillRule(aFillRule), mDT(aDT) {}
/* 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) override;
/* Add a linesegment to the current figure */
virtual void LineTo(const Point& aPoint) override;
/* Add a cubic bezier curve to the current figure */
virtual void BezierTo(const Point& aCP1, const Point& aCP2,
const Point& aCP3) override;
/* Add a quadratic bezier curve to the current figure */
virtual void QuadraticBezierTo(const Point& aCP1, const Point& aCP2) override;
/* Add an arc to the current figure */
virtual void Arc(const Point& aOrigin, float aRadius, float aStartAngle,
float aEndAngle, bool aAntiClockwise) override;
/* 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() override;
virtual already_AddRefed<Path> Finish() override;
virtual BackendType GetBackendType() const override {
return BackendType::CAPTURE;
}
private:
friend class PathCapture;
FillRule mFillRule;
std::vector<PathOp> mPathOps;
RefPtr<DrawTarget> mDT;
};
class PathCapture : public Path {
public:
MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(PathCapture, override)
PathCapture(const std::vector<PathOp> aOps, FillRule aFillRule,
DrawTarget* aDT, const Point& aCurrentPoint,
const Point& aBeginPoint)
: mPathOps(aOps),
mFillRule(aFillRule),
mDT(aDT),
mCurrentPoint(aCurrentPoint),
mBeginPoint(aBeginPoint) {}
virtual BackendType GetBackendType() const override {
return BackendType::CAPTURE;
}
virtual already_AddRefed<PathBuilder> CopyToBuilder(
FillRule aFillRule) const override;
virtual already_AddRefed<PathBuilder> TransformedCopyToBuilder(
const Matrix& aTransform, FillRule aFillRule) const override;
virtual bool ContainsPoint(const Point& aPoint,
const Matrix& aTransform) const override;
virtual bool StrokeContainsPoint(const StrokeOptions& aStrokeOptions,
const Point& aPoint,
const Matrix& aTransform) const override;
virtual Rect GetBounds(const Matrix& aTransform = Matrix()) const override;
virtual Rect GetStrokedBounds(
const StrokeOptions& aStrokeOptions,
const Matrix& aTransform = Matrix()) const override;
virtual void StreamToSink(PathSink* aSink) const override;
virtual FillRule GetFillRule() const override { return mFillRule; }
Path* GetRealizedPath() const;
private:
bool EnsureRealizedPath() const;
mutable RefPtr<Path> mRealizedPath;
std::vector<PathOp> mPathOps;
FillRule mFillRule;
RefPtr<DrawTarget> mDT;
Point mCurrentPoint;
Point mBeginPoint;
};
} // namespace gfx
} // namespace mozilla
#endif /* MOZILLA_GFX_PATHCAPTURE_H_ */