/*

 * Copyright (C) 1997 Martin Jones (mjones@kde.org)

 *           (C) 1997 Torben Weis (weis@kde.org)

 *           (C) 1998 Waldo Bastian (bastian@kde.org)

 *           (C) 1999 Lars Knoll (knoll@kde.org)

 *           (C) 1999 Antti Koivisto (koivisto@kde.org)

 * Copyright (C) 2003, 2004, 2005, 2006, 2009 Apple Inc. All rights reserved.

 * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Library General Public

 * License as published by the Free Software Foundation; either

 * version 2 of the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Library General Public License for more details.

 *

 * You should have received a copy of the GNU Library General Public License

 * along with this library; see the file COPYING.LIB.  If not, write to

 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

 * Boston, MA 02110-1301, USA.

 */

#include "config.h"

#include "RenderTableCol.h"

#include "CachedImage.h"

#include "HTMLNames.h"

#include "HTMLTableColElement.h"

#include "RenderTable.h"

namespace WebCore {

using namespace HTMLNames;

RenderTableCol::RenderTableCol(Node* node)

    : RenderBox(node)

    , m_span(1)

{

    // init RenderObject attributes

    setInline(true); // our object is not Inline

    updateFromElement();

}

void RenderTableCol::updateFromElement()

{

    int oldSpan = m_span;

    Node* n = node();

    if (n && (n->hasTagName(colTag) || n->hasTagName(colgroupTag))) {

        HTMLTableColElement* tc = static_cast<HTMLTableColElement*>(n);

        m_span = tc->span();

    } else

        m_span = !(style() && style()->display() == TABLE_COLUMN_GROUP);

    if (m_span != oldSpan && style() && parent())

        setNeedsLayoutAndPrefWidthsRecalc();

}

bool RenderTableCol::isChildAllowed(RenderObject* child, RenderStyle* style) const

{

    return !child->isText() && style && (style->display() == TABLE_COLUMN);

}

bool RenderTableCol::canHaveChildren() const

{

    // Cols cannot have children. This is actually necessary to fix a bug

    // with libraries.uc.edu, which makes a <p> be a table-column.

    return style()->display() == TABLE_COLUMN_GROUP;

}

IntRect RenderTableCol::clippedOverflowRectForRepaint(RenderBoxModelObject* repaintContainer)

{

    // For now, just repaint the whole table.

    // FIXME: Find a better way to do this, e.g., need to repaint all the cells that we

    // might have propagated a background color or borders into.

    // FIXME: check for repaintContainer each time here?

    RenderTable* parentTable = table();

    if (!parentTable)

        return IntRect();

    return parentTable->clippedOverflowRectForRepaint(repaintContainer);

}

void RenderTableCol::imageChanged(WrappedImagePtr, const IntRect*)

{

    // FIXME: Repaint only the rect the image paints in.

    repaint();

}

void RenderTableCol::calcPrefWidths()

{

    setPrefWidthsDirty(false);

    for (RenderObject* child = firstChild(); child; child = child->nextSibling())

        child->setPrefWidthsDirty(false);

}

RenderTable* RenderTableCol::table() const

{

    RenderObject* table = parent();

    if (table && !table->isTable())

        table = table->parent();

    return table && table->isTable() ? toRenderTable(table) : 0;

}

}