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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef TransformPaintPropertyNode_h | 5 #ifndef TransformPaintPropertyNode_h |
6 #define TransformPaintPropertyNode_h | 6 #define TransformPaintPropertyNode_h |
7 | 7 |
8 #include "platform/PlatformExport.h" | 8 #include "platform/PlatformExport.h" |
9 #include "platform/geometry/FloatPoint3D.h" | 9 #include "platform/geometry/FloatPoint3D.h" |
10 #include "platform/transforms/TransformationMatrix.h" | 10 #include "platform/transforms/TransformationMatrix.h" |
11 #include "wtf/PassRefPtr.h" | 11 #include "wtf/PassRefPtr.h" |
12 #include "wtf/RefCounted.h" | 12 #include "wtf/RefCounted.h" |
13 #include "wtf/RefPtr.h" | 13 #include "wtf/RefPtr.h" |
14 | 14 |
15 #include <iosfwd> | 15 #include <iosfwd> |
16 | 16 |
17 namespace blink { | 17 namespace blink { |
18 | 18 |
19 // A transform created by a css property such as "transform" or "perspective" | 19 // A transform created by a css property such as "transform" or "perspective" |
20 // along with a reference to the parent TransformPaintPropertyNode, or nullptr | 20 // along with a reference to the parent TransformPaintPropertyNode, or nullptr |
21 // for the root. | 21 // for the root. |
22 class PLATFORM_EXPORT TransformPaintPropertyNode : public RefCounted<TransformPa
intPropertyNode> { | 22 class PLATFORM_EXPORT TransformPaintPropertyNode : public RefCounted<TransformPa
intPropertyNode> { |
23 public: | 23 public: |
24 static PassRefPtr<TransformPaintPropertyNode> create( | 24 static PassRefPtr<TransformPaintPropertyNode> create( |
25 PassRefPtr<TransformPaintPropertyNode> parent, | 25 PassRefPtr<const TransformPaintPropertyNode> parent, |
26 const TransformationMatrix& matrix, | 26 const TransformationMatrix& matrix, |
27 const FloatPoint3D& origin, | 27 const FloatPoint3D& origin, |
28 bool flattensInheritedTransform = false, | 28 bool flattensInheritedTransform = false, |
29 unsigned renderingContextID = 0) | 29 unsigned renderingContextID = 0) |
30 { | 30 { |
31 return adoptRef(new TransformPaintPropertyNode(matrix, origin, parent, f
lattensInheritedTransform, renderingContextID)); | 31 return adoptRef(new TransformPaintPropertyNode(matrix, origin, parent, f
lattensInheritedTransform, renderingContextID)); |
32 } | 32 } |
33 | 33 |
34 void update(PassRefPtr<TransformPaintPropertyNode> parent, const Transformat
ionMatrix& matrix, const FloatPoint3D& origin, bool flattensInheritedTransform =
false, unsigned renderingContextID = 0) | 34 void update(PassRefPtr<const TransformPaintPropertyNode> parent, const Trans
formationMatrix& matrix, const FloatPoint3D& origin, bool flattensInheritedTrans
form = false, unsigned renderingContextID = 0) |
35 { | 35 { |
36 m_parent = parent; | 36 m_parent = parent; |
37 m_matrix = matrix; | 37 m_matrix = matrix; |
38 m_origin = origin; | 38 m_origin = origin; |
39 m_flattensInheritedTransform = flattensInheritedTransform; | 39 m_flattensInheritedTransform = flattensInheritedTransform; |
40 m_renderingContextID = renderingContextID; | 40 m_renderingContextID = renderingContextID; |
41 } | 41 } |
42 | 42 |
43 const TransformationMatrix& matrix() const { return m_matrix; } | 43 const TransformationMatrix& matrix() const { return m_matrix; } |
44 const FloatPoint3D& origin() const { return m_origin; } | 44 const FloatPoint3D& origin() const { return m_origin; } |
45 | 45 |
46 // Parent transform that this transform is relative to, or nullptr if this | 46 // Parent transform that this transform is relative to, or nullptr if this |
47 // is the root transform. | 47 // is the root transform. |
48 TransformPaintPropertyNode* parent() const { return m_parent.get(); } | 48 const TransformPaintPropertyNode* parent() const { return m_parent.get(); } |
49 | 49 |
50 // If true, content with this transform node (or its descendant) appears in | 50 // If true, content with this transform node (or its descendant) appears in |
51 // the plane of its parent. This is implemented by flattening the total | 51 // the plane of its parent. This is implemented by flattening the total |
52 // accumulated transform from its ancestors. | 52 // accumulated transform from its ancestors. |
53 bool flattensInheritedTransform() const { return m_flattensInheritedTransfor
m; } | 53 bool flattensInheritedTransform() const { return m_flattensInheritedTransfor
m; } |
54 | 54 |
55 // Content whose transform nodes have a common rendering context ID are 3D | 55 // Content whose transform nodes have a common rendering context ID are 3D |
56 // sorted. If this is 0, content will not be 3D sorted. | 56 // sorted. If this is 0, content will not be 3D sorted. |
57 unsigned renderingContextID() const { return m_renderingContextID; } | 57 unsigned renderingContextID() const { return m_renderingContextID; } |
58 bool hasRenderingContext() const { return m_renderingContextID; } | 58 bool hasRenderingContext() const { return m_renderingContextID; } |
59 | 59 |
60 private: | 60 private: |
61 TransformPaintPropertyNode( | 61 TransformPaintPropertyNode( |
62 const TransformationMatrix& matrix, | 62 const TransformationMatrix& matrix, |
63 const FloatPoint3D& origin, | 63 const FloatPoint3D& origin, |
64 PassRefPtr<TransformPaintPropertyNode> parent, | 64 PassRefPtr<const TransformPaintPropertyNode> parent, |
65 bool flattensInheritedTransform, | 65 bool flattensInheritedTransform, |
66 unsigned renderingContextID) | 66 unsigned renderingContextID) |
67 : m_matrix(matrix) | 67 : m_matrix(matrix) |
68 , m_origin(origin) | 68 , m_origin(origin) |
69 , m_parent(parent) | 69 , m_parent(parent) |
70 , m_flattensInheritedTransform(flattensInheritedTransform) | 70 , m_flattensInheritedTransform(flattensInheritedTransform) |
71 , m_renderingContextID(renderingContextID) | 71 , m_renderingContextID(renderingContextID) |
72 { | 72 { |
73 } | 73 } |
74 | 74 |
75 TransformationMatrix m_matrix; | 75 TransformationMatrix m_matrix; |
76 FloatPoint3D m_origin; | 76 FloatPoint3D m_origin; |
77 RefPtr<TransformPaintPropertyNode> m_parent; | 77 RefPtr<const TransformPaintPropertyNode> m_parent; |
78 bool m_flattensInheritedTransform; | 78 bool m_flattensInheritedTransform; |
79 unsigned m_renderingContextID; | 79 unsigned m_renderingContextID; |
80 }; | 80 }; |
81 | 81 |
82 // Redeclared here to avoid ODR issues. | 82 // Redeclared here to avoid ODR issues. |
83 // See platform/testing/PaintPrinters.h. | 83 // See platform/testing/PaintPrinters.h. |
84 void PrintTo(const TransformPaintPropertyNode&, std::ostream*); | 84 void PrintTo(const TransformPaintPropertyNode&, std::ostream*); |
85 | 85 |
86 } // namespace blink | 86 } // namespace blink |
87 | 87 |
88 #endif // TransformPaintPropertyNode_h | 88 #endif // TransformPaintPropertyNode_h |
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