1/*
2 * Copyright (C) 1997 Martin Jones (mjones@kde.org)
3 * (C) 1997 Torben Weis (weis@kde.org)
4 * (C) 1998 Waldo Bastian (bastian@kde.org)
5 * (C) 1999 Lars Knoll (knoll@kde.org)
6 * (C) 1999 Antti Koivisto (koivisto@kde.org)
7 * Copyright (C) 2003, 2004, 2005, 2006, 2009 Apple Inc. All rights reserved.
8 * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
9 *
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Library General Public
12 * License as published by the Free Software Foundation; either
13 * version 2 of the License, or (at your option) any later version.
14 *
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Library General Public License for more details.
19 *
20 * You should have received a copy of the GNU Library General Public License
21 * along with this library; see the file COPYING.LIB. If not, write to
22 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
23 * Boston, MA 02110-1301, USA.
24 */
25
26#pragma once
27
28#include "RenderBox.h"
29
30namespace WebCore {
31
32class RenderTable;
33class RenderTableCell;
34
35class RenderTableCol final : public RenderBox {
36 WTF_MAKE_ISO_ALLOCATED(RenderTableCol);
37public:
38 RenderTableCol(Element&, RenderStyle&&);
39 Element& element() const { return downcast<Element>(nodeForNonAnonymous()); }
40
41 void clearPreferredLogicalWidthsDirtyBits();
42
43 unsigned span() const { return m_span; }
44 void setSpan(unsigned span) { m_span = span; }
45
46 bool isTableColumnGroupWithColumnChildren() const { return firstChild(); }
47 bool isTableColumn() const { return style().display() == DisplayType::TableColumn; }
48 bool isTableColumnGroup() const { return style().display() == DisplayType::TableColumnGroup; }
49
50 RenderTableCol* enclosingColumnGroup() const;
51 RenderTableCol* enclosingColumnGroupIfAdjacentBefore() const;
52 RenderTableCol* enclosingColumnGroupIfAdjacentAfter() const;
53
54 // Returns the next column or column-group.
55 RenderTableCol* nextColumn() const;
56
57 const BorderValue& borderAdjoiningCellStartBorder() const;
58 const BorderValue& borderAdjoiningCellEndBorder() const;
59 const BorderValue& borderAdjoiningCellBefore(const RenderTableCell&) const;
60 const BorderValue& borderAdjoiningCellAfter(const RenderTableCell&) const;
61
62 LayoutUnit offsetLeft() const override;
63 LayoutUnit offsetTop() const override;
64 LayoutUnit offsetWidth() const override;
65 LayoutUnit offsetHeight() const override;
66 void updateFromElement() override;
67
68private:
69 const char* renderName() const override { return "RenderTableCol"; }
70 bool isRenderTableCol() const override { return true; }
71 void computePreferredLogicalWidths() override { ASSERT_NOT_REACHED(); }
72
73 void insertedIntoTree() override;
74 void willBeRemovedFromTree() override;
75
76 bool isChildAllowed(const RenderObject&, const RenderStyle&) const override;
77 bool canHaveChildren() const override;
78 bool requiresLayer() const override { return false; }
79
80 LayoutRect clippedOverflowRectForRepaint(const RenderLayerModelObject* repaintContainer) const override;
81 void imageChanged(WrappedImagePtr, const IntRect* = 0) override;
82
83 void styleDidChange(StyleDifference, const RenderStyle* oldStyle) override;
84 void paint(PaintInfo&, const LayoutPoint&) override { }
85
86 RenderTable* table() const;
87
88 unsigned m_span { 1 };
89};
90
91inline RenderTableCol* RenderTableCol::enclosingColumnGroupIfAdjacentBefore() const
92{
93 if (previousSibling())
94 return nullptr;
95 return enclosingColumnGroup();
96}
97
98inline RenderTableCol* RenderTableCol::enclosingColumnGroupIfAdjacentAfter() const
99{
100 if (nextSibling())
101 return nullptr;
102 return enclosingColumnGroup();
103}
104
105} // namespace WebCore
106
107SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderTableCol, isRenderTableCol())
108