1 /* 2 * Copyright (C) 1997 Martin Jones (mjones (at) kde.org) 3 * (C) 1997 Torben Weis (weis (at) kde.org) 4 * (C) 1998 Waldo Bastian (bastian (at) kde.org) 5 * (C) 1999 Lars Knoll (knoll (at) kde.org) 6 * (C) 1999 Antti Koivisto (koivisto (at) 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 "HTMLNames.h" 30 #include "core/html/HTMLTableColElement.h" 31 #include "core/rendering/RenderTable.h" 32 #include "core/rendering/RenderTableCell.h" 33 34 namespace WebCore { 35 36 using namespace HTMLNames; 37 38 RenderTableCol::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 47 void RenderTableCol::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle) 48 { 49 RenderBox::styleDidChange(diff, oldStyle); 50 51 // If border was changed, notify table. 52 if (parent()) { 53 RenderTable* table = this->table(); 54 if (table && !table->selfNeedsLayout() && !table->normalChildNeedsLayout() && oldStyle && oldStyle->border() != style()->border()) 55 table->invalidateCollapsedBorders(); 56 } 57 } 58 59 void RenderTableCol::updateFromElement() 60 { 61 unsigned oldSpan = m_span; 62 Node* n = node(); 63 if (n && (n->hasTagName(colTag) || n->hasTagName(colgroupTag))) { 64 HTMLTableColElement* tc = toHTMLTableColElement(n); 65 m_span = tc->span(); 66 } else 67 m_span = !(style() && style()->display() == TABLE_COLUMN_GROUP); 68 if (m_span != oldSpan && style() && parent()) 69 setNeedsLayoutAndPrefWidthsRecalc(); 70 } 71 72 void RenderTableCol::insertedIntoTree() 73 { 74 RenderBox::insertedIntoTree(); 75 table()->addColumn(this); 76 } 77 78 void RenderTableCol::willBeRemovedFromTree() 79 { 80 RenderBox::willBeRemovedFromTree(); 81 table()->removeColumn(this); 82 } 83 84 bool RenderTableCol::isChildAllowed(RenderObject* child, RenderStyle* style) const 85 { 86 // We cannot use isTableColumn here as style() may return 0. 87 return child->isRenderTableCol() && style->display() == TABLE_COLUMN; 88 } 89 90 bool RenderTableCol::canHaveChildren() const 91 { 92 // Cols cannot have children. This is actually necessary to fix a bug 93 // with libraries.uc.edu, which makes a <p> be a table-column. 94 return isTableColumnGroup(); 95 } 96 97 LayoutRect RenderTableCol::clippedOverflowRectForRepaint(const RenderLayerModelObject* repaintContainer) const 98 { 99 // For now, just repaint the whole table. 100 // FIXME: Find a better way to do this, e.g., need to repaint all the cells that we 101 // might have propagated a background color or borders into. 102 // FIXME: check for repaintContainer each time here? 103 104 RenderTable* parentTable = table(); 105 if (!parentTable) 106 return LayoutRect(); 107 return parentTable->clippedOverflowRectForRepaint(repaintContainer); 108 } 109 110 void RenderTableCol::imageChanged(WrappedImagePtr, const IntRect*) 111 { 112 // FIXME: Repaint only the rect the image paints in. 113 repaint(); 114 } 115 116 void RenderTableCol::clearPreferredLogicalWidthsDirtyBits() 117 { 118 clearPreferredLogicalWidthsDirty(); 119 120 for (RenderObject* child = firstChild(); child; child = child->nextSibling()) 121 child->clearPreferredLogicalWidthsDirty(); 122 } 123 124 RenderTable* RenderTableCol::table() const 125 { 126 RenderObject* table = parent(); 127 if (table && !table->isTable()) 128 table = table->parent(); 129 return table && table->isTable() ? toRenderTable(table) : 0; 130 } 131 132 RenderTableCol* RenderTableCol::enclosingColumnGroup() const 133 { 134 if (!parent()->isRenderTableCol()) 135 return 0; 136 137 RenderTableCol* parentColumnGroup = toRenderTableCol(parent()); 138 ASSERT(parentColumnGroup->isTableColumnGroup()); 139 ASSERT(isTableColumn()); 140 return parentColumnGroup; 141 } 142 143 RenderTableCol* RenderTableCol::nextColumn() const 144 { 145 // If |this| is a column-group, the next column is the colgroup's first child column. 146 if (RenderObject* firstChild = this->firstChild()) 147 return toRenderTableCol(firstChild); 148 149 // Otherwise it's the next column along. 150 RenderObject* next = nextSibling(); 151 152 // 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. 153 if (!next && parent()->isRenderTableCol()) 154 next = parent()->nextSibling(); 155 156 for (; next && !next->isRenderTableCol(); next = next->nextSibling()) { } 157 158 return toRenderTableCol(next); 159 } 160 161 const BorderValue& RenderTableCol::borderAdjoiningCellStartBorder(const RenderTableCell*) const 162 { 163 return style()->borderStart(); 164 } 165 166 const BorderValue& RenderTableCol::borderAdjoiningCellEndBorder(const RenderTableCell*) const 167 { 168 return style()->borderEnd(); 169 } 170 171 const BorderValue& RenderTableCol::borderAdjoiningCellBefore(const RenderTableCell* cell) const 172 { 173 ASSERT_UNUSED(cell, table()->colElement(cell->col() + cell->colSpan()) == this); 174 return style()->borderStart(); 175 } 176 177 const BorderValue& RenderTableCol::borderAdjoiningCellAfter(const RenderTableCell* cell) const 178 { 179 ASSERT_UNUSED(cell, table()->colElement(cell->col() - 1) == this); 180 return style()->borderEnd(); 181 } 182 183 } 184
