/*!
\fn void QTextTable::insertColumns(int index, int columns)
Inserts a number of \a columns before the column with the specified \a index.
\sa insertRows() resize() removeRows() removeColumns() appendRows() appendColumns()
*/
void QTextTable::insertColumns(int pos, int num)
{
Q_D(QTextTable);
if (num <= 0)
return;
if (d->dirty)
d->update();
if (pos > d->nCols || pos < 0)
pos = d->nCols;
// qDebug() << "-------- insertCols" << pos << num;
QTextDocumentPrivate *p = d->pieceTable;
QTextFormatCollection *c = p->formatCollection();
p->beginEditBlock();
for (int i = 0; i < d->nRows; ++i) {
int cell;
if (i == d->nRows - 1 && pos == d->nCols)
cell = d->fragment_end;
else
cell = d->grid[i*d->nCols + pos];
QTextDocumentPrivate::FragmentIterator it(&p->fragmentMap(), cell);
QTextCharFormat fmt = c->charFormat(it->format);
if (pos > 0 && pos < d->nCols && cell == d->grid[i*d->nCols + pos - 1]) {
// cell spans the insertion place, extend it
fmt.setTableCellColumnSpan(fmt.tableCellColumnSpan() + num);
p->setCharFormat(it.position(), 1, fmt);
} else {
fmt.setTableCellRowSpan(1);
fmt.setTableCellColumnSpan(1);
Q_ASSERT(fmt.objectIndex() == objectIndex());
int position = it.position();
int cfmt = p->formatCollection()->indexForFormat(fmt);
int bfmt = p->formatCollection()->indexForFormat(QTextBlockFormat());
for (int i = 0; i < num; ++i)
p->insertBlock(QTextBeginningOfFrame, position, bfmt, cfmt, QTextUndoCommand::MoveCursor);
}
}
QTextTableFormat tfmt = format();
tfmt.setColumns(tfmt.columns()+num);
QVector<QTextLength> columnWidths = tfmt.columnWidthConstraints();
if (! columnWidths.isEmpty()) {
for (int i = num; i > 0; --i)
columnWidths.insert(pos, columnWidths[qMax(0, pos-1)]);
}
tfmt.setColumnWidthConstraints (columnWidths);
QTextObject::setFormat(tfmt);
// qDebug() << "-------- end insertCols" << pos << num;
p->endEditBlock();
}
/*!
\fn void QTextTable::removeColumns(int index, int columns)
Removes a number of \a columns starting with the column at the specified
\a index.
\sa insertRows() insertColumns() removeRows() resize()
*/
void QTextTable::removeColumns(int pos, int num)
{
Q_D(QTextTable);
// qDebug() << "-------- removeCols" << pos << num;
if (num <= 0 || pos < 0)
return;
if (d->dirty)
d->update();
if (pos >= d->nCols)
return;
if (pos + num > d->nCols)
pos = d->nCols - num;
QTextDocumentPrivate *p = d->pieceTable;
QTextFormatCollection *collection = p->formatCollection();
p->beginEditBlock();
// delete whole table?
if (pos == 0 && num == d->nCols) {
const int pos = p->fragmentMap().position(d->fragment_start);
p->remove(pos, p->fragmentMap().position(d->fragment_end) - pos + 1);
p->endEditBlock();
return;
}
for (int r = 0; r < d->nRows; ++r) {
for (int c = pos; c < pos + num; ++c) {
int cell = d->grid[r*d->nCols + c];
QTextDocumentPrivate::FragmentIterator it(&p->fragmentMap(), cell);
QTextCharFormat fmt = collection->charFormat(it->format);
int span = fmt.tableCellColumnSpan();
if (span > 1) {
fmt.setTableCellColumnSpan(span - 1);
p->setCharFormat(it.position(), 1, fmt);
} else {
// remove cell
int index = d->cells.indexOf(cell) + 1;
int f_end = index < d->cells.size() ? d->cells.at(index) : d->fragment_end;
p->remove(it.position(), p->fragmentMap().position(f_end) - it.position());
}
}
}
QTextTableFormat tfmt = format();
tfmt.setColumns(tfmt.columns()-num);
QTextObject::setFormat(tfmt);
p->endEditBlock();
// qDebug() << "-------- end removeCols" << pos << num;
}
/*!
\fn void QTextTable::removeColumns(int index, int columns)
Removes a number of \a columns starting with the column at the specified
\a index.
\sa insertRows(), insertColumns(), removeRows(), resize(), appendRows(), appendColumns()
*/
void QTextTable::removeColumns(int pos, int num)
{
Q_D(QTextTable);
// qDebug() << "-------- removeCols" << pos << num;
if (num <= 0 || pos < 0)
return;
if (d->dirty)
d->update();
if (pos >= d->nCols)
return;
if (pos + num > d->nCols)
pos = d->nCols - num;
QTextDocumentPrivate *p = d->pieceTable;
QTextFormatCollection *collection = p->formatCollection();
p->beginEditBlock();
// delete whole table?
if (pos == 0 && num == d->nCols) {
const int pos = p->fragmentMap().position(d->fragment_start);
p->remove(pos, p->fragmentMap().position(d->fragment_end) - pos + 1);
p->endEditBlock();
return;
}
p->aboutToRemoveCell(cellAt(0, pos).firstPosition(), cellAt(d->nRows - 1, pos + num - 1).lastPosition());
QList<int> touchedCells;
for (int r = 0; r < d->nRows; ++r) {
for (int c = pos; c < pos + num; ++c) {
int cell = d->grid[r*d->nCols + c];
QTextDocumentPrivate::FragmentIterator it(&p->fragmentMap(), cell);
QTextCharFormat fmt = collection->charFormat(it->format);
int span = fmt.tableCellColumnSpan();
if (touchedCells.contains(cell) && span <= 1)
continue;
touchedCells << cell;
if (span > 1) {
fmt.setTableCellColumnSpan(span - 1);
p->setCharFormat(it.position(), 1, fmt);
} else {
// remove cell
int index = d->cells.indexOf(cell) + 1;
int f_end = index < d->cells.size() ? d->cells.at(index) : d->fragment_end;
p->remove(it.position(), p->fragmentMap().position(f_end) - it.position());
}
}
}
QTextTableFormat tfmt = format();
tfmt.setColumns(tfmt.columns()-num);
QVector<QTextLength> columnWidths = tfmt.columnWidthConstraints();
if (columnWidths.count() > pos) {
columnWidths.remove(pos, num);
tfmt.setColumnWidthConstraints (columnWidths);
}
QTextObject::setFormat(tfmt);
p->endEditBlock();
// qDebug() << "-------- end removeCols" << pos << num;
}
/*!
\fn void QTextTable::insertColumns(int index, int columns)
Inserts a number of \a columns before the column with the specified \a index.
\sa insertRows(), resize(), removeRows(), removeColumns(), appendRows(), appendColumns()
*/
void QTextTable::insertColumns(int pos, int num)
{
Q_D(QTextTable);
if (num <= 0)
return;
if (d->dirty)
d->update();
if (pos > d->nCols || pos < 0)
pos = d->nCols;
// qDebug() << "-------- insertCols" << pos << num;
QTextDocumentPrivate *p = d->pieceTable;
QTextFormatCollection *c = p->formatCollection();
p->beginEditBlock();
QList<int> extendedSpans;
for (int i = 0; i < d->nRows; ++i) {
int cell;
if (i == d->nRows - 1 && pos == d->nCols) {
cell = d->fragment_end;
} else {
int logicalGridIndexBeforePosition = pos > 0
? d->findCellIndex(d->grid[i*d->nCols + pos - 1])
: -1;
// Search for the logical insertion point by skipping past cells which are not the first
// cell in a rowspan. This means any cell for which the logical grid index is
// less than the logical cell index of the cell before the insertion.
int logicalGridIndex;
int gridArrayOffset = i*d->nCols + pos;
do {
cell = d->grid[gridArrayOffset];
logicalGridIndex = d->findCellIndex(cell);
gridArrayOffset++;
} while (logicalGridIndex < logicalGridIndexBeforePosition
&& gridArrayOffset < d->nRows*d->nCols);
if (logicalGridIndex < logicalGridIndexBeforePosition
&& gridArrayOffset == d->nRows*d->nCols)
cell = d->fragment_end;
}
if (pos > 0 && pos < d->nCols && cell == d->grid[i*d->nCols + pos - 1]) {
// cell spans the insertion place, extend it
if (!extendedSpans.contains(cell)) {
QTextDocumentPrivate::FragmentIterator it(&p->fragmentMap(), cell);
QTextCharFormat fmt = c->charFormat(it->format);
fmt.setTableCellColumnSpan(fmt.tableCellColumnSpan() + num);
p->setCharFormat(it.position(), 1, fmt);
d->dirty = true;
extendedSpans << cell;
}
} else {
/* If the next cell is spanned from the row above, we need to find the right position
to insert to */
if (i > 0 && pos < d->nCols && cell == d->grid[(i-1) * d->nCols + pos]) {
int gridIndex = i*d->nCols + pos;
const int gridEnd = d->nRows * d->nCols - 1;
while (gridIndex < gridEnd && cell == d->grid[gridIndex]) {
++gridIndex;
}
if (gridIndex == gridEnd)
cell = d->fragment_end;
else
cell = d->grid[gridIndex];
}
QTextDocumentPrivate::FragmentIterator it(&p->fragmentMap(), cell);
QTextCharFormat fmt = c->charFormat(it->format);
fmt.setTableCellRowSpan(1);
fmt.setTableCellColumnSpan(1);
Q_ASSERT(fmt.objectIndex() == objectIndex());
int position = it.position();
int cfmt = p->formatCollection()->indexForFormat(fmt);
int bfmt = p->formatCollection()->indexForFormat(QTextBlockFormat());
for (int i = 0; i < num; ++i)
p->insertBlock(QTextBeginningOfFrame, position, bfmt, cfmt, QTextUndoCommand::MoveCursor);
}
}
QTextTableFormat tfmt = format();
tfmt.setColumns(tfmt.columns()+num);
QVector<QTextLength> columnWidths = tfmt.columnWidthConstraints();
if (! columnWidths.isEmpty()) {
for (int i = num; i > 0; --i)
columnWidths.insert(pos, columnWidths[qMax(0, pos-1)]);
}
tfmt.setColumnWidthConstraints (columnWidths);
QTextObject::setFormat(tfmt);
// qDebug() << "-------- end insertCols" << pos << num;
p->endEditBlock();
}
