michael@0: /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
michael@0:  * This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef MOZILLA_GFX_PATH_CAIRO_H_
michael@0: #define MOZILLA_GFX_PATH_CAIRO_H_
michael@0: 
michael@0: #include "2D.h"
michael@0: #include "cairo.h"
michael@0: #include <vector>
michael@0: 
michael@0: namespace mozilla {
michael@0: namespace gfx {
michael@0: 
michael@0: class DrawTargetCairo;
michael@0: class PathCairo;
michael@0: 
michael@0: class PathBuilderCairo : public PathBuilder
michael@0: {
michael@0: public:
michael@0:   MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(PathBuilderCairo)
michael@0:   PathBuilderCairo(FillRule aFillRule);
michael@0: 
michael@0:   virtual void MoveTo(const Point &aPoint);
michael@0:   virtual void LineTo(const Point &aPoint);
michael@0:   virtual void BezierTo(const Point &aCP1,
michael@0:                         const Point &aCP2,
michael@0:                         const Point &aCP3);
michael@0:   virtual void QuadraticBezierTo(const Point &aCP1,
michael@0:                                  const Point &aCP2);
michael@0:   virtual void Close();
michael@0:   virtual void Arc(const Point &aOrigin, float aRadius, float aStartAngle,
michael@0:                    float aEndAngle, bool aAntiClockwise = false);
michael@0:   virtual Point CurrentPoint() const;
michael@0:   virtual TemporaryRef<Path> Finish();
michael@0: 
michael@0: private: // data
michael@0:   friend class PathCairo;
michael@0: 
michael@0:   FillRule mFillRule;
michael@0:   std::vector<cairo_path_data_t> mPathData;
michael@0:   // It's easiest to track this here, parsing the path data to find the current
michael@0:   // point is a little tricky.
michael@0:   Point mCurrentPoint;
michael@0:   Point mBeginPoint;
michael@0: };
michael@0: 
michael@0: class PathCairo : public Path
michael@0: {
michael@0: public:
michael@0:   MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(PathCairo)
michael@0:   PathCairo(FillRule aFillRule, std::vector<cairo_path_data_t> &aPathData, const Point &aCurrentPoint);
michael@0:   PathCairo(cairo_t *aContext);
michael@0:   ~PathCairo();
michael@0: 
michael@0:   virtual BackendType GetBackendType() const { return BackendType::CAIRO; }
michael@0: 
michael@0:   virtual TemporaryRef<PathBuilder> CopyToBuilder(FillRule aFillRule = FillRule::FILL_WINDING) const;
michael@0:   virtual TemporaryRef<PathBuilder> TransformedCopyToBuilder(const Matrix &aTransform,
michael@0:                                                              FillRule aFillRule = FillRule::FILL_WINDING) const;
michael@0: 
michael@0:   virtual bool ContainsPoint(const Point &aPoint, const Matrix &aTransform) const;
michael@0: 
michael@0:   virtual bool StrokeContainsPoint(const StrokeOptions &aStrokeOptions,
michael@0:                                    const Point &aPoint,
michael@0:                                    const Matrix &aTransform) const;
michael@0: 
michael@0:   virtual Rect GetBounds(const Matrix &aTransform = Matrix()) const;
michael@0: 
michael@0:   virtual Rect GetStrokedBounds(const StrokeOptions &aStrokeOptions,
michael@0:                                 const Matrix &aTransform = Matrix()) const;
michael@0: 
michael@0:   virtual void StreamToSink(PathSink *aSink) const;
michael@0: 
michael@0:   virtual FillRule GetFillRule() const { return mFillRule; }
michael@0: 
michael@0:   void SetPathOnContext(cairo_t *aContext) const;
michael@0: 
michael@0:   void AppendPathToBuilder(PathBuilderCairo *aBuilder, const Matrix *aTransform = nullptr) const;
michael@0: private:
michael@0:   void EnsureContainingContext() const;
michael@0: 
michael@0:   FillRule mFillRule;
michael@0:   std::vector<cairo_path_data_t> mPathData;
michael@0:   mutable cairo_t *mContainingContext;
michael@0:   Point mCurrentPoint;
michael@0: };
michael@0: 
michael@0: }
michael@0: }
michael@0: 
michael@0: #endif /* MOZILLA_GFX_PATH_CAIRO_H_ */