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#include "config.h" 27#include "core/rendering/RenderTableCol.h" 28 29#include "core/HTMLNames.h" 30#include "core/html/HTMLTableColElement.h" 31#include "core/rendering/RenderTable.h" 32#include "core/rendering/RenderTableCell.h" 33 34namespace blink { 35 36using namespace HTMLNames; 37 38RenderTableCol::RenderTableCol(Element* element) 39 : RenderBox(element) 40 , m_span(1) 41{ 42 // init RenderObject attributes 43 setInline(true); // our object is not Inline 44 updateFromElement(); 45} 46 47void RenderTableCol::trace(Visitor* visitor) 48{ 49 visitor->trace(m_children); 50 RenderBox::trace(visitor); 51} 52 53void RenderTableCol::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle) 54{ 55 RenderBox::styleDidChange(diff, oldStyle); 56 57 // If border was changed, notify table. 58 if (parent()) { 59 RenderTable* table = this->table(); 60 if (table && !table->selfNeedsLayout() && !table->normalChildNeedsLayout() && oldStyle && oldStyle->border() != style()->border()) 61 table->invalidateCollapsedBorders(); 62 } 63} 64 65void RenderTableCol::updateFromElement() 66{ 67 unsigned oldSpan = m_span; 68 Node* n = node(); 69 if (isHTMLTableColElement(n)) { 70 HTMLTableColElement& tc = toHTMLTableColElement(*n); 71 m_span = tc.span(); 72 } else 73 m_span = !(style() && style()->display() == TABLE_COLUMN_GROUP); 74 if (m_span != oldSpan && style() && parent()) 75 setNeedsLayoutAndPrefWidthsRecalcAndFullPaintInvalidation(); 76} 77 78void RenderTableCol::insertedIntoTree() 79{ 80 RenderBox::insertedIntoTree(); 81 table()->addColumn(this); 82} 83 84void RenderTableCol::willBeRemovedFromTree() 85{ 86 RenderBox::willBeRemovedFromTree(); 87 table()->removeColumn(this); 88} 89 90bool RenderTableCol::isChildAllowed(RenderObject* child, RenderStyle* style) const 91{ 92 // We cannot use isTableColumn here as style() may return 0. 93 return child->isRenderTableCol() && style->display() == TABLE_COLUMN; 94} 95 96bool RenderTableCol::canHaveChildren() const 97{ 98 // Cols cannot have children. This is actually necessary to fix a bug 99 // with libraries.uc.edu, which makes a <p> be a table-column. 100 return isTableColumnGroup(); 101} 102 103LayoutRect RenderTableCol::clippedOverflowRectForPaintInvalidation(const RenderLayerModelObject* paintInvalidationContainer, const PaintInvalidationState* paintInvalidationState) const 104{ 105 // For now, just paint invalidate the whole table. 106 // FIXME: Find a better way to do this, e.g., need to paint invalidate all the cells that we 107 // might have propagated a background color or borders into. 108 // FIXME: check for paintInvalidationContainer each time here? 109 110 RenderTable* parentTable = table(); 111 if (!parentTable) 112 return LayoutRect(); 113 return parentTable->clippedOverflowRectForPaintInvalidation(paintInvalidationContainer, paintInvalidationState); 114} 115 116void RenderTableCol::imageChanged(WrappedImagePtr, const IntRect*) 117{ 118 // FIXME: Issue paint invalidation of only the rect the image paints in. 119 setShouldDoFullPaintInvalidation(true); 120} 121 122void RenderTableCol::clearPreferredLogicalWidthsDirtyBits() 123{ 124 clearPreferredLogicalWidthsDirty(); 125 126 for (RenderObject* child = firstChild(); child; child = child->nextSibling()) 127 child->clearPreferredLogicalWidthsDirty(); 128} 129 130RenderTable* RenderTableCol::table() const 131{ 132 RenderObject* table = parent(); 133 if (table && !table->isTable()) 134 table = table->parent(); 135 return table && table->isTable() ? toRenderTable(table) : 0; 136} 137 138RenderTableCol* RenderTableCol::enclosingColumnGroup() const 139{ 140 if (!parent()->isRenderTableCol()) 141 return 0; 142 143 RenderTableCol* parentColumnGroup = toRenderTableCol(parent()); 144 ASSERT(parentColumnGroup->isTableColumnGroup()); 145 ASSERT(isTableColumn()); 146 return parentColumnGroup; 147} 148 149RenderTableCol* RenderTableCol::nextColumn() const 150{ 151 // If |this| is a column-group, the next column is the colgroup's first child column. 152 if (RenderObject* firstChild = this->firstChild()) 153 return toRenderTableCol(firstChild); 154 155 // Otherwise it's the next column along. 156 RenderObject* next = nextSibling(); 157 158 // Failing that, the child is the last column in a column-group, so the next column is the next column/column-group after its column-group. 159 if (!next && parent()->isRenderTableCol()) 160 next = parent()->nextSibling(); 161 162 for (; next && !next->isRenderTableCol(); next = next->nextSibling()) { } 163 164 return toRenderTableCol(next); 165} 166 167const BorderValue& RenderTableCol::borderAdjoiningCellStartBorder(const RenderTableCell*) const 168{ 169 return style()->borderStart(); 170} 171 172const BorderValue& RenderTableCol::borderAdjoiningCellEndBorder(const RenderTableCell*) const 173{ 174 return style()->borderEnd(); 175} 176 177const BorderValue& RenderTableCol::borderAdjoiningCellBefore(const RenderTableCell* cell) const 178{ 179 ASSERT_UNUSED(cell, table()->colElement(cell->col() + cell->colSpan()) == this); 180 return style()->borderStart(); 181} 182 183const BorderValue& RenderTableCol::borderAdjoiningCellAfter(const RenderTableCell* cell) const 184{ 185 ASSERT_UNUSED(cell, table()->colElement(cell->col() - 1) == this); 186 return style()->borderEnd(); 187} 188 189} 190