1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/2d/PathCairo.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,93 @@
1.4 +/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
1.5 + * This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef MOZILLA_GFX_PATH_CAIRO_H_
1.10 +#define MOZILLA_GFX_PATH_CAIRO_H_
1.11 +
1.12 +#include "2D.h"
1.13 +#include "cairo.h"
1.14 +#include <vector>
1.15 +
1.16 +namespace mozilla {
1.17 +namespace gfx {
1.18 +
1.19 +class DrawTargetCairo;
1.20 +class PathCairo;
1.21 +
1.22 +class PathBuilderCairo : public PathBuilder
1.23 +{
1.24 +public:
1.25 + MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(PathBuilderCairo)
1.26 + PathBuilderCairo(FillRule aFillRule);
1.27 +
1.28 + virtual void MoveTo(const Point &aPoint);
1.29 + virtual void LineTo(const Point &aPoint);
1.30 + virtual void BezierTo(const Point &aCP1,
1.31 + const Point &aCP2,
1.32 + const Point &aCP3);
1.33 + virtual void QuadraticBezierTo(const Point &aCP1,
1.34 + const Point &aCP2);
1.35 + virtual void Close();
1.36 + virtual void Arc(const Point &aOrigin, float aRadius, float aStartAngle,
1.37 + float aEndAngle, bool aAntiClockwise = false);
1.38 + virtual Point CurrentPoint() const;
1.39 + virtual TemporaryRef<Path> Finish();
1.40 +
1.41 +private: // data
1.42 + friend class PathCairo;
1.43 +
1.44 + FillRule mFillRule;
1.45 + std::vector<cairo_path_data_t> mPathData;
1.46 + // It's easiest to track this here, parsing the path data to find the current
1.47 + // point is a little tricky.
1.48 + Point mCurrentPoint;
1.49 + Point mBeginPoint;
1.50 +};
1.51 +
1.52 +class PathCairo : public Path
1.53 +{
1.54 +public:
1.55 + MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(PathCairo)
1.56 + PathCairo(FillRule aFillRule, std::vector<cairo_path_data_t> &aPathData, const Point &aCurrentPoint);
1.57 + PathCairo(cairo_t *aContext);
1.58 + ~PathCairo();
1.59 +
1.60 + virtual BackendType GetBackendType() const { return BackendType::CAIRO; }
1.61 +
1.62 + virtual TemporaryRef<PathBuilder> CopyToBuilder(FillRule aFillRule = FillRule::FILL_WINDING) const;
1.63 + virtual TemporaryRef<PathBuilder> TransformedCopyToBuilder(const Matrix &aTransform,
1.64 + FillRule aFillRule = FillRule::FILL_WINDING) const;
1.65 +
1.66 + virtual bool ContainsPoint(const Point &aPoint, const Matrix &aTransform) const;
1.67 +
1.68 + virtual bool StrokeContainsPoint(const StrokeOptions &aStrokeOptions,
1.69 + const Point &aPoint,
1.70 + const Matrix &aTransform) const;
1.71 +
1.72 + virtual Rect GetBounds(const Matrix &aTransform = Matrix()) const;
1.73 +
1.74 + virtual Rect GetStrokedBounds(const StrokeOptions &aStrokeOptions,
1.75 + const Matrix &aTransform = Matrix()) const;
1.76 +
1.77 + virtual void StreamToSink(PathSink *aSink) const;
1.78 +
1.79 + virtual FillRule GetFillRule() const { return mFillRule; }
1.80 +
1.81 + void SetPathOnContext(cairo_t *aContext) const;
1.82 +
1.83 + void AppendPathToBuilder(PathBuilderCairo *aBuilder, const Matrix *aTransform = nullptr) const;
1.84 +private:
1.85 + void EnsureContainingContext() const;
1.86 +
1.87 + FillRule mFillRule;
1.88 + std::vector<cairo_path_data_t> mPathData;
1.89 + mutable cairo_t *mContainingContext;
1.90 + Point mCurrentPoint;
1.91 +};
1.92 +
1.93 +}
1.94 +}
1.95 +
1.96 +#endif /* MOZILLA_GFX_PATH_CAIRO_H_ */
