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
|
/*
* Copyright (C) 2009 Alex Milowski (alex@milowski.com). 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
* OWNER 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 "config.h"
#if ENABLE(MATHML)
#include "RenderMathMLUnderOver.h"
#include "MathMLNames.h"
namespace WebCore {
using namespace MathMLNames;
RenderMathMLUnderOver::RenderMathMLUnderOver(Element* element)
: RenderMathMLBlock(element)
{
// Determine what kind of under/over expression we have by element name
if (element->hasLocalName(MathMLNames::munderTag))
m_kind = Under;
else if (element->hasLocalName(MathMLNames::moverTag))
m_kind = Over;
else {
ASSERT(element->hasLocalName(MathMLNames::munderoverTag));
m_kind = UnderOver;
}
}
RenderMathMLOperator* RenderMathMLUnderOver::unembellishedOperator()
{
RenderObject* base = firstChild();
if (!base || !base->isRenderMathMLBlock())
return 0;
return toRenderMathMLBlock(base)->unembellishedOperator();
}
int RenderMathMLUnderOver::firstLineBoxBaseline() const
{
RenderBox* base = firstChildBox();
if (!base)
return -1;
LayoutUnit baseline = base->firstLineBoxBaseline();
if (baseline != -1)
baseline += base->logicalTop();
return baseline;
}
}
#endif // ENABLE(MATHML)
|
