html_tableimpl.cpp

khtml在gtk上的移植版本

        HTMLElementImpl::addChild(child);
        // Now simply return ourselves as the newnode.  This has the effect of
        // demoting the form to a leaf and moving it safely out of the way.
        return this;
    }
    return HTMLTablePartElementImpl::addChild(child);
}

// these functions are rather slow, since we need to get the row at
// the index... but they aren't used during usual HTML parsing anyway
HTMLElementImpl *HTMLTableSectionElementImpl::insertRow( long index, int& exceptioncode )
{
    HTMLTableRowElementImpl *r = 0L;
    NodeListImpl *children = childNodes();
    int numRows = children ? (int)children->length() : 0;
    //kdDebug(6030) << k_funcinfo << "index=" << index << " numRows=" << numRows << endl;
    if ( index < -1 || index > numRows ) {
        exceptioncode = DOMException::INDEX_SIZE_ERR; // per the DOM
    }
    else
    {
        r = new HTMLTableRowElementImpl(docPtr());
        if ( numRows == index || index == -1 )
            appendChild(r, exceptioncode);
        else {
            NodeImpl *n;
            if(index < 1)
                n = firstChild();
            else
                n = children->item(index);
            insertBefore(r, n, exceptioncode );
        }
    }
    delete children;
    return r;
}

void HTMLTableSectionElementImpl::deleteRow( long index, int &exceptioncode )
{
    NodeListImpl *children = childNodes();
    int numRows = children ? (int)children->length() : 0;
    if ( index == -1 ) index = numRows - 1;
    if( index >= 0 && index < numRows )
        HTMLElementImpl::removeChild(children->item(index), exceptioncode);
    else
        exceptioncode = DOMException::INDEX_SIZE_ERR;
    delete children;
}


int HTMLTableSectionElementImpl::numRows() const
{
    int rows = 0;
    const NodeImpl *n = firstChild();
    while (n) {
        if (n->id() == ID_TR)
            rows++;
        n = n->nextSibling();
    }

    return rows;
}

// -------------------------------------------------------------------------

NodeImpl::Id HTMLTableRowElementImpl::id() const
{
    return ID_TR;
}

NodeImpl *HTMLTableRowElementImpl::addChild(NodeImpl *child)
{
#ifdef DEBUG_LAYOUT
    kdDebug( 6030 ) << nodeName().string() << "(Trow)::addChild( " << child->nodeName().string() << " )" << endl;
#endif

    if (child->id() == ID_FORM) {
        // First add the child.
        HTMLElementImpl::addChild(child);
        // Now simply return ourselves as the newnode.  This has the effect of
        // demoting the form to a leaf and moving it safely out of the way.
        return this;
    }
    return HTMLTablePartElementImpl::addChild(child);
}

long HTMLTableRowElementImpl::rowIndex() const
{
    int rIndex = 0;

    NodeImpl *table = parentNode();
    if ( !table )
	return -1;
    table = table->parentNode();
    if ( !table || table->id() != ID_TABLE )
	return -1;

    HTMLTableSectionElementImpl *foot = static_cast<HTMLTableElementImpl *>(table)->tFoot();
    NodeImpl *node = table->firstChild();
    while ( node ) {
        if ( node != foot && (node->id() == ID_THEAD || node->id() == ID_TFOOT || node->id() == ID_TBODY) ) {
	    HTMLTableSectionElementImpl* section = static_cast<HTMLTableSectionElementImpl *>(node);
	    const NodeImpl *row = section->firstChild();
	    while ( row ) {
		if ( row == this )
		    return rIndex;
		rIndex++;
		row = row->nextSibling();
	    }
	}
	node = node->nextSibling();
    }
    const NodeImpl *row = foot->firstChild();
    while ( row ) {
	if ( row == this )
	    return rIndex;
	rIndex++;
	row = row->nextSibling();
    }
    // should never happen
    return -1;
}

long HTMLTableRowElementImpl::sectionRowIndex() const
{
    int rIndex = 0;
    const NodeImpl *n = this;
    do {
        n = n->previousSibling();
        if (n && n->isElementNode() && n->id() == ID_TR)
            rIndex++;
    }
    while (n);

    return rIndex;
}

HTMLElementImpl *HTMLTableRowElementImpl::insertCell( long index, int &exceptioncode )
{
    HTMLTableCellElementImpl *c = 0L;
    NodeListImpl *children = childNodes();
    int numCells = children ? children->length() : 0;
    if ( index < -1 || index > numCells )
        exceptioncode = DOMException::INDEX_SIZE_ERR; // per the DOM
    else
    {
        c = new HTMLTableCellElementImpl(docPtr(), ID_TD);
        if(numCells == index || index == -1)
            appendChild(c, exceptioncode);
        else {
            NodeImpl *n;
            if(index < 1)
                n = firstChild();
            else
                n = children->item(index);
            insertBefore(c, n, exceptioncode);
        }
    }
    delete children;
    return c;
}

void HTMLTableRowElementImpl::deleteCell( long index, int &exceptioncode )
{
    NodeListImpl *children = childNodes();
    int numCells = children ? children->length() : 0;
    if ( index == -1 ) index = numCells-1;
    if( index >= 0 && index < numCells )
        HTMLElementImpl::removeChild(children->item(index), exceptioncode);
    else
        exceptioncode = DOMException::INDEX_SIZE_ERR;
    delete children;
}

// -------------------------------------------------------------------------

HTMLTableCellElementImpl::HTMLTableCellElementImpl(DocumentPtr *doc, int tag)
  : HTMLTablePartElementImpl(doc)
{
  _col = -1;
  _row = -1;
  cSpan = rSpan = 1;
  _id = tag;
  rowHeight = 0;
  m_solid = false;
}

HTMLTableCellElementImpl::~HTMLTableCellElementImpl()
{
}


bool HTMLTableCellElementImpl::mapToEntry(NodeImpl::Id attr, MappedAttributeEntry& result) const
{
    switch(attr) {
        case ATTR_NOWRAP:
            result = eUniversal;
            return false;
        case ATTR_WIDTH:
        case ATTR_HEIGHT:
            result = eCell; // Because of the quirky behavior of ignoring 0 values, cells are special.
            return false;
        default:
            break;
    }
    return HTMLTablePartElementImpl::mapToEntry(attr, result);
}

void HTMLTableCellElementImpl::parseHTMLAttribute(HTMLAttributeImpl *attr)
{
    switch(attr->id())
    {
    case ATTR_ROWSPAN:
        // ###
        rSpan = !attr->isNull() ? attr->value().toInt() : 1;
        // limit this to something not causing an overflow with short int
        if(rSpan < 1 || rSpan > 1024) rSpan = 1;
        break;
    case ATTR_COLSPAN:
        // ###
        cSpan = !attr->isNull() ? attr->value().toInt() : 1;
        // limit this to something not causing an overflow with short int
        if(cSpan < 1 || cSpan > 1024) cSpan = 1;
        break;
    case ATTR_NOWRAP:
        if (!attr->isNull())
            addCSSProperty(attr, CSS_PROP_WHITE_SPACE, CSS_VAL__KHTML_NOWRAP);
        break;
    case ATTR_WIDTH:
        if (!attr->value().isEmpty()) {
            int widthInt = attr->value().toInt();
            if (widthInt > 0) // width="0" is ignored for compatibility with WinIE.
                addCSSLength( attr, CSS_PROP_WIDTH, attr->value() );
        }
        break;
    case ATTR_HEIGHT:
        if (!attr->value().isEmpty()) {
            int heightInt = attr->value().toInt();
            if (heightInt > 0) // height="0" is ignored for compatibility with WinIE.
                addCSSLength( attr, CSS_PROP_HEIGHT, attr->value() );
        }
        break;
    case ATTR_NOSAVE:
	break;
    default:
        HTMLTablePartElementImpl::parseHTMLAttribute(attr);
    }
}

// used by table cells to share style decls created by the enclosing table.
CSSStyleDeclarationImpl* HTMLTableCellElementImpl::additionalAttributeStyleDecl()
{
    HTMLElementImpl* p = static_cast<HTMLElementImpl*>(parentNode());
    while(p && p->id() != ID_TABLE)
        p = static_cast<HTMLElementImpl*>(p->parentNode());

    if (p) {
        HTMLTableElementImpl* table = static_cast<HTMLTableElementImpl*>(p);
        return table->getSharedCellDecl();
    }

    return 0;
}

void HTMLTableCellElementImpl::attach()
{
    HTMLElementImpl* p = static_cast<HTMLElementImpl*>(parentNode());
    while(p && p->id() != ID_TABLE)
        p = static_cast<HTMLElementImpl*>(p->parentNode());

    HTMLTablePartElementImpl::attach();
}

bool HTMLTableCellElementImpl::isURLAttribute(AttributeImpl *attr) const
{
    return attr->id() == ATTR_BACKGROUND;
}

// -------------------------------------------------------------------------

HTMLTableColElementImpl::HTMLTableColElementImpl(DocumentPtr *doc, ushort i)
    : HTMLTablePartElementImpl(doc)
{
    _id = i;
    _span = (_id == ID_COLGROUP ? 0 : 1);
}

NodeImpl::Id HTMLTableColElementImpl::id() const
{
    return _id;
}

bool HTMLTableColElementImpl::mapToEntry(NodeImpl::Id attr, MappedAttributeEntry& result) const
{
    switch(attr) {
        case ATTR_WIDTH:
            result = eUniversal;
            return false;
        default:
            break;
    }
    return HTMLTablePartElementImpl::mapToEntry(attr, result);
}

void HTMLTableColElementImpl::parseHTMLAttribute(HTMLAttributeImpl *attr)
{
    switch(attr->id())
    {
    case ATTR_SPAN:
        _span = !attr->isNull() ? attr->value().toInt() : 1;
        break;
    case ATTR_WIDTH:
        if (!attr->value().isEmpty())
            addCSSLength(attr, CSS_PROP_WIDTH, attr->value());
        break;
    default:
        HTMLTablePartElementImpl::parseHTMLAttribute(attr);
    }

}

// -------------------------------------------------------------------------

NodeImpl::Id HTMLTableCaptionElementImpl::id() const
{
    return ID_CAPTION;
}

bool HTMLTableCaptionElementImpl::mapToEntry(NodeImpl::Id attr, MappedAttributeEntry& result) const
{
    if (attr == ATTR_ALIGN) {
        result = eCaption;
        return false;
    }
    return HTMLElementImpl::mapToEntry(attr, result);
}

void HTMLTableCaptionElementImpl::parseHTMLAttribute(HTMLAttributeImpl *attr)
{
    switch(attr->id())
    {
    case ATTR_ALIGN:
        if (!attr->value().isEmpty())
            addCSSProperty(attr, CSS_PROP_CAPTION_SIDE, attr->value());
        break;
    default:
        HTMLElementImpl::parseHTMLAttribute(attr);
    }

}