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
|
/*
* 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 ShapeInsideInfo_h
#define ShapeInsideInfo_h
#include "core/rendering/shapes/ShapeInfo.h"
#include "wtf/PassOwnPtr.h"
#include "wtf/Vector.h"
namespace WebCore {
class InlineIterator;
class RenderBlock;
class RenderObject;
struct LineSegmentIterator {
RenderObject* root;
RenderObject* object;
unsigned offset;
LineSegmentIterator(RenderObject* root, RenderObject* object, unsigned offset)
: root(root)
, object(object)
, offset(offset)
{
}
};
struct LineSegmentRange {
LineSegmentIterator start;
LineSegmentIterator end;
LineSegmentRange(const InlineIterator& start, const InlineIterator& end);
};
typedef Vector<LineSegmentRange> SegmentRangeList;
class ShapeInsideInfo FINAL : public ShapeInfo<RenderBlock> {
public:
static PassOwnPtr<ShapeInsideInfo> createInfo(const RenderBlock* renderer) { return adoptPtr(new ShapeInsideInfo(renderer)); }
static bool isEnabledFor(const RenderBlock* renderer);
bool updateSegmentsForLine(LayoutSize lineOffset, LayoutUnit lineHeight);
bool updateSegmentsForLine(LayoutUnit lineTop, LayoutUnit lineHeight);
bool hasSegments() const
{
return lineOverlapsShapeBounds() && m_segments.size();
}
const SegmentList& segments() const
{
ASSERT(hasSegments());
return m_segments;
}
SegmentRangeList& segmentRanges() { return m_segmentRanges; }
const SegmentRangeList& segmentRanges() const { return m_segmentRanges; }
const LineSegment* currentSegment() const
{
if (!hasSegments())
return 0;
ASSERT(m_segmentRanges.size() < m_segments.size());
return &m_segments[m_segmentRanges.size()];
}
void clearSegments() { m_segments.clear(); }
bool adjustLogicalLineTop(float minSegmentWidth);
LayoutUnit computeFirstFitPositionForFloat(const LayoutSize) const;
void setNeedsLayout(bool value) { m_needsLayout = value; }
bool needsLayout() { return m_needsLayout; }
virtual bool lineOverlapsShapeBounds() const OVERRIDE
{
return computedShape()->lineOverlapsShapePaddingBounds(m_shapeLineTop, m_lineHeight);
}
protected:
virtual LayoutRect computedShapeLogicalBoundingBox() const OVERRIDE { return computedShape()->shapePaddingLogicalBoundingBox(); }
virtual ShapeValue* shapeValue() const OVERRIDE;
virtual void getIntervals(LayoutUnit lineTop, LayoutUnit lineHeight, SegmentList& segments) const OVERRIDE
{
return computedShape()->getIncludedIntervals(lineTop, lineHeight, segments);
}
private:
ShapeInsideInfo(const RenderBlock* renderer)
: ShapeInfo<RenderBlock> (renderer)
, m_needsLayout(false)
{ }
SegmentRangeList m_segmentRanges;
bool m_needsLayout;
SegmentList m_segments;
};
}
#endif
|
