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
|
/*
* Copyright (C) 2013 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 HOLDERS AND CONTRIBUTORS
* "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 OR CONTRIBUTORS 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.
*/
#include "core/layout/shapes/BoxShape.h"
#include "wtf/MathExtras.h"
namespace blink {
LayoutRect BoxShape::shapeMarginLogicalBoundingBox() const {
FloatRect marginBounds(m_bounds.rect());
if (shapeMargin() > 0)
marginBounds.inflate(shapeMargin());
return static_cast<LayoutRect>(marginBounds);
}
FloatRoundedRect BoxShape::shapeMarginBounds() const {
FloatRoundedRect marginBounds(m_bounds);
if (shapeMargin() > 0) {
marginBounds.inflate(shapeMargin());
marginBounds.expandRadii(shapeMargin());
}
return marginBounds;
}
LineSegment BoxShape::getExcludedInterval(LayoutUnit logicalTop,
LayoutUnit logicalHeight) const {
const FloatRoundedRect& marginBounds = shapeMarginBounds();
if (marginBounds.isEmpty() ||
!lineOverlapsShapeMarginBounds(logicalTop, logicalHeight))
return LineSegment();
float y1 = logicalTop.toFloat();
float y2 = (logicalTop + logicalHeight).toFloat();
const FloatRect& rect = marginBounds.rect();
if (!marginBounds.isRounded())
return LineSegment(marginBounds.rect().x(), marginBounds.rect().maxX());
float topCornerMaxY = std::max<float>(marginBounds.topLeftCorner().maxY(),
marginBounds.topRightCorner().maxY());
float bottomCornerMinY =
std::min<float>(marginBounds.bottomLeftCorner().y(),
marginBounds.bottomRightCorner().y());
if (topCornerMaxY <= bottomCornerMinY && y1 <= topCornerMaxY &&
y2 >= bottomCornerMinY)
return LineSegment(rect.x(), rect.maxX());
float x1 = rect.maxX();
float x2 = rect.x();
float minXIntercept;
float maxXIntercept;
if (y1 <= marginBounds.topLeftCorner().maxY() &&
y2 >= marginBounds.bottomLeftCorner().y())
x1 = rect.x();
if (y1 <= marginBounds.topRightCorner().maxY() &&
y2 >= marginBounds.bottomRightCorner().y())
x2 = rect.maxX();
if (marginBounds.xInterceptsAtY(y1, minXIntercept, maxXIntercept)) {
x1 = std::min<float>(x1, minXIntercept);
x2 = std::max<float>(x2, maxXIntercept);
}
if (marginBounds.xInterceptsAtY(y2, minXIntercept, maxXIntercept)) {
x1 = std::min<float>(x1, minXIntercept);
x2 = std::max<float>(x2, maxXIntercept);
}
ASSERT(x2 >= x1);
return LineSegment(x1, x2);
}
void BoxShape::buildDisplayPaths(DisplayPaths& paths) const {
paths.shape.addRoundedRect(m_bounds.rect(), m_bounds.getRadii().topLeft(),
m_bounds.getRadii().topRight(),
m_bounds.getRadii().bottomLeft(),
m_bounds.getRadii().bottomRight());
if (shapeMargin())
paths.marginShape.addRoundedRect(
shapeMarginBounds().rect(), shapeMarginBounds().getRadii().topLeft(),
shapeMarginBounds().getRadii().topRight(),
shapeMarginBounds().getRadii().bottomLeft(),
shapeMarginBounds().getRadii().bottomRight());
}
} // namespace blink
|
