/*!
Returns a frame iterator pointing to the end of the table's cell.
\sa begin()
*/
QTextFrame::iterator QTextTableCell::end() const
{
QTextDocumentPrivate *p = table->docHandle();
int b = p->blockMap().findNode(firstPosition());
int e = p->blockMap().findNode(lastPosition()+1);
return QTextFrame::iterator(const_cast<QTextTable *>(table), e, b, e);
}
/*!
\since 4.1
Splits the specified cell at \a row and \a column into an array of multiple
cells with dimensions specified by \a numRows and \a numCols.
\note It is only possible to split cells that span multiple rows or columns, such as rows
that have been merged using mergeCells().
\sa mergeCells()
*/
void QTextTable::splitCell(int row, int column, int numRows, int numCols)
{
Q_D(QTextTable);
if (d->dirty)
d->update();
QTextDocumentPrivate *p = d->pieceTable;
QTextFormatCollection *c = p->formatCollection();
const QTextTableCell cell = cellAt(row, column);
if (!cell.isValid())
return;
row = cell.row();
column = cell.column();
QTextCharFormat fmt = cell.format();
const int rowSpan = fmt.tableCellRowSpan();
const int colSpan = fmt.tableCellColumnSpan();
// nothing to split?
if (numRows > rowSpan || numCols > colSpan)
return;
p->beginEditBlock();
const int origCellPosition = cell.firstPosition() - 1;
QVarLengthArray<int> rowPositions(rowSpan);
rowPositions[0] = cell.lastPosition();
for (int r = row + 1; r < row + rowSpan; ++r) {
// find the cell before which to insert the new cell markers
int gridIndex = r * d->nCols + column;
QVector<int>::iterator it = qUpperBound(d->cellIndices.begin(), d->cellIndices.end(), gridIndex);
int cellIndex = it - d->cellIndices.begin();
int fragment = d->cells.value(cellIndex, d->fragment_end);
rowPositions[r - row] = p->fragmentMap().position(fragment);
}
fmt.setTableCellColumnSpan(1);
fmt.setTableCellRowSpan(1);
const int fmtIndex = c->indexForFormat(fmt);
const int blockIndex = p->blockMap().find(cell.lastPosition())->format;
int insertAdjustement = 0;
for (int i = 0; i < numRows; ++i) {
for (int c = 0; c < colSpan - numCols; ++c)
p->insertBlock(QTextBeginningOfFrame, rowPositions[i] + insertAdjustement + c, blockIndex, fmtIndex);
insertAdjustement += colSpan - numCols;
}
for (int i = numRows; i < rowSpan; ++i) {
for (int c = 0; c < colSpan; ++c)
p->insertBlock(QTextBeginningOfFrame, rowPositions[i] + insertAdjustement + c, blockIndex, fmtIndex);
insertAdjustement += colSpan;
}
fmt.setTableCellRowSpan(numRows);
fmt.setTableCellColumnSpan(numCols);
p->setCharFormat(origCellPosition, 1, fmt);
p->endEditBlock();
}