int QTextCopyHelper::appendFragment(int pos, int endPos, int objectIndex)
{
QTextDocumentPrivate::FragmentIterator fragIt = src->find(pos);
const QTextFragmentData * const frag = fragIt.value();
Q_ASSERT(objectIndex == -1
|| (frag->size_array[0] == 1 && src->formatCollection()->format(frag->format).objectIndex() != -1));
int charFormatIndex;
if (forceCharFormat)
charFormatIndex = primaryCharFormatIndex;
else
charFormatIndex = convertFormatIndex(frag->format, objectIndex);
const int inFragmentOffset = qMax(0, pos - fragIt.position());
int charsToCopy = qMin(int(frag->size_array[0] - inFragmentOffset), endPos - pos);
QTextBlock nextBlock = src->blocksFind(pos + 1);
int blockIdx = -2;
if (nextBlock.position() == pos + 1) {
blockIdx = convertFormatIndex(nextBlock.blockFormat());
} else if (pos == 0 && insertPos == 0) {
dst->setBlockFormat(dst->blocksBegin(), dst->blocksBegin(), convertFormat(src->blocksBegin().blockFormat()).toBlockFormat());
dst->setCharFormat(-1, 1, convertFormat(src->blocksBegin().charFormat()).toCharFormat());
}
QString txtToInsert(originalText.constData() + frag->stringPosition + inFragmentOffset, charsToCopy);
if (txtToInsert.length() == 1
&& (txtToInsert.at(0) == QChar::ParagraphSeparator
|| txtToInsert.at(0) == QTextBeginningOfFrame
|| txtToInsert.at(0) == QTextEndOfFrame
)
) {
dst->insertBlock(txtToInsert.at(0), insertPos, blockIdx, charFormatIndex);
++insertPos;
} else {
if (nextBlock.textList()) {
QTextBlock dstBlock = dst->blocksFind(insertPos);
if (!dstBlock.textList()) {
// insert a new text block with the block and char format from the
// source block to make sure that the following text fragments
// end up in a list as they should
int listBlockFormatIndex = convertFormatIndex(nextBlock.blockFormat());
int listCharFormatIndex = convertFormatIndex(nextBlock.charFormat());
dst->insertBlock(insertPos, listBlockFormatIndex, listCharFormatIndex);
++insertPos;
}
}
dst->insert(insertPos, txtToInsert, charFormatIndex);
const int userState = nextBlock.userState();
if (userState != -1)
dst->blocksFind(insertPos).setUserState(userState);
insertPos += txtToInsert.length();
}
return charsToCopy;
}
QTextCopyHelper::QTextCopyHelper(const QTextCursor &_source, const QTextCursor &_destination, bool forceCharFormat, const QTextCharFormat &fmt)
: formatCollection(*_destination.d->priv->formatCollection()), originalText(_source.d->priv->buffer())
{
src = _source.d->priv;
dst = _destination.d->priv;
insertPos = _destination.position();
this->forceCharFormat = forceCharFormat;
primaryCharFormatIndex = convertFormatIndex(fmt);
cursor = _source;
}
void QTextCopyHelper::copy()
{
if (cursor.hasComplexSelection()) {
QTextTable *table = cursor.currentTable();
int row_start, col_start, num_rows, num_cols;
cursor.selectedTableCells(&row_start, &num_rows, &col_start, &num_cols);
QTextTableFormat tableFormat = table->format();
tableFormat.setColumns(num_cols);
tableFormat.clearColumnWidthConstraints();
const int objectIndex = dst->formatCollection()->createObjectIndex(tableFormat);
Q_ASSERT(row_start != -1);
for (int r = row_start; r < row_start + num_rows; ++r) {
for (int c = col_start; c < col_start + num_cols; ++c) {
QTextTableCell cell = table->cellAt(r, c);
const int rspan = cell.rowSpan();
const int cspan = cell.columnSpan();
if (rspan != 1) {
int cr = cell.row();
if (cr != r)
continue;
}
if (cspan != 1) {
int cc = cell.column();
if (cc != c)
continue;
}
// add the QTextBeginningOfFrame
QTextCharFormat cellFormat = cell.format();
if (r + rspan >= row_start + num_rows) {
cellFormat.setTableCellRowSpan(row_start + num_rows - r);
}
if (c + cspan >= col_start + num_cols) {
cellFormat.setTableCellColumnSpan(col_start + num_cols - c);
}
const int charFormatIndex = convertFormatIndex(cellFormat, objectIndex);
int blockIdx = -2;
const int cellPos = cell.firstPosition();
QTextBlock block = src->blocksFind(cellPos);
if (block.position() == cellPos) {
blockIdx = convertFormatIndex(block.blockFormat());
}
dst->insertBlock(QTextBeginningOfFrame, insertPos, blockIdx, charFormatIndex);
++insertPos;
// nothing to add for empty cells
if (cell.lastPosition() > cellPos) {
// add the contents
appendFragments(cellPos, cell.lastPosition());
}
}
}
// add end of table
int end = table->lastPosition();
appendFragment(end, end+1, objectIndex);
} else {
appendFragments(cursor.selectionStart(), cursor.selectionEnd());
}
}
