2 * Copyright (C) 2009 Alex Milowski (alex@milowski.com). All rights reserved.
3 * Copyright (C) 2016 Igalia S.L.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
15 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
16 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
17 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
18 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
19 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
20 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 #ifndef RenderMathMLUnderOver_h
28 #define RenderMathMLUnderOver_h
32 #include "RenderMathMLBlock.h"
36 class RenderMathMLUnderOver final : public RenderMathMLBlock {
38 RenderMathMLUnderOver(Element&, Ref<RenderStyle>&&);
40 RenderMathMLOperator* unembellishedOperator() override;
42 Optional<int> firstLineBaseline() const override;
44 void computePreferredLogicalWidths() final;
45 void layoutBlock(bool relayoutChildren, LayoutUnit pageLogicalHeight = 0) final;
46 void paintChildren(PaintInfo& forSelf, const LayoutPoint&, PaintInfo& forChild, bool usePrintRect) final;
49 bool isRenderMathMLUnderOver() const override { return true; }
50 const char* renderName() const override { return "RenderMathMLUnderOver"; }
52 void computeOperatorsHorizontalStretch();
54 RenderBox& base() const;
55 RenderBox& under() const;
56 RenderBox& over() const;
57 LayoutUnit horizontalOffset(const RenderBox&) const;
59 enum UnderOverType { Under, Over, UnderOver };
60 UnderOverType m_scriptType;
65 #endif // ENABLE(MATHML)
67 #endif // RenderMathMLUnderOver_h