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
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
/*
* Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef ShapeOutsideInfo_h
#define ShapeOutsideInfo_h
#include "core/rendering/shapes/Shape.h"
#include "core/rendering/style/RenderStyle.h"
#include "core/rendering/style/ShapeValue.h"
#include "platform/geometry/FloatRect.h"
#include "platform/geometry/LayoutSize.h"
#include "wtf/OwnPtr.h"
#include "wtf/Vector.h"
namespace WebCore {
class RenderBlockFlow;
class RenderBox;
class FloatingObject;
class ShapeOutsideInfo FINAL {
WTF_MAKE_FAST_ALLOCATED;
public:
void setReferenceBoxLogicalSize(LayoutSize);
SegmentList computeSegmentsForLine(LayoutUnit lineTop, LayoutUnit lineHeight) const;
LayoutUnit shapeLogicalTop() const { return computedShape().shapeMarginLogicalBoundingBox().y() + logicalTopOffset(); }
LayoutUnit shapeLogicalBottom() const { return computedShape().shapeMarginLogicalBoundingBox().maxY() + logicalTopOffset(); }
LayoutUnit shapeLogicalLeft() const { return computedShape().shapeMarginLogicalBoundingBox().x() + logicalLeftOffset(); }
LayoutUnit shapeLogicalRight() const { return computedShape().shapeMarginLogicalBoundingBox().maxX() + logicalLeftOffset(); }
LayoutUnit shapeLogicalWidth() const { return computedShape().shapeMarginLogicalBoundingBox().width(); }
LayoutUnit shapeLogicalHeight() const { return computedShape().shapeMarginLogicalBoundingBox().height(); }
LayoutUnit logicalLineTop() const { return m_referenceBoxLineTop + logicalTopOffset(); }
LayoutUnit logicalLineBottom() const { return m_referenceBoxLineTop + m_lineHeight + logicalTopOffset(); }
LayoutUnit leftMarginBoxDelta() const { return m_leftMarginBoxDelta; }
LayoutUnit rightMarginBoxDelta() const { return m_rightMarginBoxDelta; }
bool lineOverlapsShape() const { return m_lineOverlapsShape; }
static PassOwnPtr<ShapeOutsideInfo> createInfo(const RenderBox& renderer) { return adoptPtr(new ShapeOutsideInfo(renderer)); }
static bool isEnabledFor(const RenderBox&);
void updateDeltasForContainingBlockLine(const RenderBlockFlow&, const FloatingObject&, LayoutUnit lineTop, LayoutUnit lineHeight);
bool lineOverlapsShapeBounds() const
{
return computedShape().lineOverlapsShapeMarginBounds(m_referenceBoxLineTop, m_lineHeight);
}
static ShapeOutsideInfo& ensureInfo(const RenderBox& key)
{
InfoMap& infoMap = ShapeOutsideInfo::infoMap();
if (ShapeOutsideInfo* info = infoMap.get(&key))
return *info;
InfoMap::AddResult result = infoMap.add(&key, ShapeOutsideInfo::createInfo(key));
return *result.storedValue->value;
}
static void removeInfo(const RenderBox& key) { infoMap().remove(&key); }
static ShapeOutsideInfo* info(const RenderBox& key) { return infoMap().get(&key); }
void markShapeAsDirty() { m_shape.clear(); }
bool isShapeDirty() { return !m_shape.get(); }
LayoutSize shapeSize() const { return m_referenceBoxLogicalSize; }
LayoutRect computedShapePhysicalBoundingBox() const;
FloatPoint shapeToRendererPoint(FloatPoint) const;
FloatSize shapeToRendererSize(FloatSize) const;
const Shape& computedShape() const;
protected:
ShapeOutsideInfo(const RenderBox& renderer)
: m_renderer(renderer)
, m_lineOverlapsShape(false)
{ }
private:
PassOwnPtr<Shape> createShapeForImage(StyleImage*, float shapeImageThreshold, WritingMode, float margin) const;
LayoutUnit logicalTopOffset() const;
LayoutUnit logicalLeftOffset() const;
typedef HashMap<const RenderBox*, OwnPtr<ShapeOutsideInfo> > InfoMap;
static InfoMap& infoMap()
{
DEFINE_STATIC_LOCAL(InfoMap, staticInfoMap, ());
return staticInfoMap;
}
LayoutUnit m_referenceBoxLineTop;
LayoutUnit m_lineHeight;
const RenderBox& m_renderer;
mutable OwnPtr<Shape> m_shape;
LayoutSize m_referenceBoxLogicalSize;
LayoutUnit m_leftMarginBoxDelta;
LayoutUnit m_rightMarginBoxDelta;
LayoutUnit m_borderBoxLineTop;
bool m_lineOverlapsShape;
};
}
#endif
|
