1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
/* 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 CanvasPath_h
#define CanvasPath_h
#include "mozilla/Attributes.h"
#include "mozilla/RefPtr.h"
#include "nsWrapperCache.h"
#include "mozilla/gfx/2D.h"
#include "mozilla/dom/BindingDeclarations.h"
namespace mozilla {
class ErrorResult;
namespace dom {
enum class CanvasWindingRule : uint8_t;
struct DOMMatrix2DInit;
class CanvasPath final : public nsWrapperCache {
public:
NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(CanvasPath)
NS_DECL_CYCLE_COLLECTION_NATIVE_WRAPPERCACHE_CLASS(CanvasPath)
nsCOMPtr<nsISupports> GetParentObject() { return mParent; }
JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
static already_AddRefed<CanvasPath> Constructor(const GlobalObject& aGlobal);
static already_AddRefed<CanvasPath> Constructor(const GlobalObject& aGlobal,
CanvasPath& aCanvasPath);
static already_AddRefed<CanvasPath> Constructor(const GlobalObject& aGlobal,
const nsAString& aPathString);
void ClosePath();
void MoveTo(double x, double y);
void LineTo(double x, double y);
void QuadraticCurveTo(double cpx, double cpy, double x, double y);
void BezierCurveTo(double cp1x, double cp1y, double cp2x, double cp2y,
double x, double y);
void ArcTo(double x1, double y1, double x2, double y2, double radius,
ErrorResult& error);
void Rect(double x, double y, double w, double h);
void Arc(double x, double y, double radius, double startAngle,
double endAngle, bool anticlockwise, ErrorResult& error);
void Ellipse(double x, double y, double radiusX, double radiusY,
double rotation, double startAngle, double endAngle,
bool anticlockwise, ErrorResult& error);
void LineTo(const gfx::Point& aPoint);
void BezierTo(const gfx::Point& aCP1, const gfx::Point& aCP2,
const gfx::Point& aCP3);
already_AddRefed<gfx::Path> GetPath(const CanvasWindingRule& aWinding,
const gfx::DrawTarget* aTarget) const;
explicit CanvasPath(nsISupports* aParent);
// already_AddRefed arg because the return value from Path::CopyToBuilder()
// is passed directly and we can't drop the only ref to have a raw pointer.
CanvasPath(nsISupports* aParent,
already_AddRefed<gfx::PathBuilder> aPathBuilder);
void AddPath(CanvasPath& aCanvasPath, const DOMMatrix2DInit& aInit,
ErrorResult& aError);
private:
virtual ~CanvasPath() = default;
nsCOMPtr<nsISupports> mParent;
static gfx::Float ToFloat(double aValue) { return gfx::Float(aValue); }
mutable RefPtr<gfx::Path> mPath;
mutable RefPtr<gfx::PathBuilder> mPathBuilder;
void EnsurePathBuilder() const;
};
} // namespace dom
} // namespace mozilla
#endif /* CanvasPath_h */
|
