C++ QTextTableCell类代码示例

void
ChatDialog::appendChatMessage(const QString& nick, const QString& text, time_t timestamp)
{
  QTextCharFormat nickFormat;
  nickFormat.setForeground(Qt::darkGreen);
  nickFormat.setFontWeight(QFont::Bold);
  nickFormat.setFontUnderline(true);
  nickFormat.setUnderlineColor(Qt::gray);

  // Print who & when
  QTextCursor cursor(ui->textEdit->textCursor());
  cursor.movePosition(QTextCursor::End);
  QTextTableFormat tableFormat;
  tableFormat.setBorder(0);
  QTextTable *table = cursor.insertTable(1, 2, tableFormat);
  QString from = QString("%1 ").arg(nick);
  QTextTableCell fromCell = table->cellAt(0, 0);
  fromCell.setFormat(nickFormat);
  fromCell.firstCursorPosition().insertText(from);
  printTimeInCell(table, timestamp);

  // Print what
  QTextCursor nextCursor(ui->textEdit->textCursor());
  nextCursor.movePosition(QTextCursor::End);
  table = nextCursor.insertTable(1, 1, tableFormat);
  table->cellAt(0, 0).firstCursorPosition().insertText(text);

  // Popup notification
  showMessage(from, text);

  QScrollBar *bar = ui->textEdit->verticalScrollBar();
  bar->setValue(bar->maximum());
}

void DeckListModel::printDeckListNode(QTextCursor *cursor, InnerDecklistNode *node)
{
	static const int totalColumns = 3;

	if (node->height() == 1) {
		QTextBlockFormat blockFormat;
		QTextCharFormat charFormat;
		charFormat.setFontPointSize(11);
		charFormat.setFontWeight(QFont::Bold);
		cursor->insertBlock(blockFormat, charFormat);
		cursor->insertText(QString("%1: %2").arg(node->getVisibleName()).arg(node->recursiveCount(true)));

		QTextTableFormat tableFormat;
		tableFormat.setCellPadding(0);
		tableFormat.setCellSpacing(0);
		tableFormat.setBorder(0);
		QTextTable *table = cursor->insertTable(node->size() + 1, 2, tableFormat);
		for (int i = 0; i < node->size(); i++) {
			AbstractDecklistCardNode *card = dynamic_cast<AbstractDecklistCardNode *>(node->at(i));

			QTextCharFormat cellCharFormat;
			cellCharFormat.setFontPointSize(9);

			QTextTableCell cell = table->cellAt(i, 0);
			cell.setFormat(cellCharFormat);
			QTextCursor cellCursor = cell.firstCursorPosition();
			cellCursor.insertText(QString("%1 ").arg(card->getNumber()));

			cell = table->cellAt(i, 1);
			cell.setFormat(cellCharFormat);
			cellCursor = cell.firstCursorPosition();
			cellCursor.insertText(card->getName());
		}
	} else if (node->height() == 2) {
		QTextBlockFormat blockFormat;
		QTextCharFormat charFormat;
		charFormat.setFontPointSize(14);
		charFormat.setFontWeight(QFont::Bold);

		cursor->insertBlock(blockFormat, charFormat);
		cursor->insertText(QString("%1: %2").arg(node->getVisibleName()).arg(node->recursiveCount(true)));

		QTextTableFormat tableFormat;
		tableFormat.setCellPadding(10);
		tableFormat.setCellSpacing(0);
		tableFormat.setBorder(0);
		QVector<QTextLength> constraints;
		for (int i = 0; i < totalColumns; i++)
			constraints << QTextLength(QTextLength::PercentageLength, 100.0 / totalColumns);
		tableFormat.setColumnWidthConstraints(constraints);

		QTextTable *table = cursor->insertTable(1, totalColumns, tableFormat);
		for (int i = 0; i < node->size(); i++) {
			QTextCursor cellCursor = table->cellAt(0, (i * totalColumns) / node->size()).lastCursorPosition();
			printDeckListNode(&cellCursor, dynamic_cast<InnerDecklistNode *>(node->at(i)));
		}
	}
	cursor->movePosition(QTextCursor::End);
}

FrameIterator::FrameIterator(const QTextTableCell &cell)
{
    Q_ASSERT(cell.isValid());
    it = cell.begin();
    currentTableIterator = 0;
    currentSubFrameIterator = 0;
    lineTextStart = -1;
    endNoteIndex = 0;
}

void MessageAction::featureUpdate()
{
    QTextTableCell cell = textTable->cellAt(0,3);
    QTextTableCellFormat format;
    if (!isProcessed)
        format.setBackground(QColor(Qt::red));
    else
        format.setBackground(QColor(Qt::white));
    cell.setFormat(format);
}

void PrintDialog::fillCategoryTableLine(  QTextTable * table, const unsigned int & row,
		const QString & position, const QString & lastname,
		const QString & firstname, const QString & time)
{
	int realRow = row + 1;
	table->insertRows ( realRow, 1 );

	QTextCharFormat cellFormat;
	cellFormat.setFontPointSize(10.0);
	if(row%2)
		cellFormat.setBackground(QBrush(QColor(240,240,240)));

	QTextTableCell cell = table->cellAt(realRow, 0);
	QTextCursor cursor = cell.firstCursorPosition();
	cell.setFormat(cellFormat);
	cursor.insertText(position);

	cell = table->cellAt(realRow, 1);
	cursor = cell.firstCursorPosition();
	cell.setFormat(cellFormat);
	cursor.insertText(lastname);

	cell = table->cellAt(realRow, 2);
	cursor = cell.firstCursorPosition();
	cell.setFormat(cellFormat);
	cursor.insertText(firstname);

	cell = table->cellAt(realRow, 3);
	cursor = cell.firstCursorPosition();
	cell.setFormat(cellFormat);
	cursor.insertText(time);
}

int KTextDocumentLayout::hitTestIterated(QTextFrame::iterator begin, QTextFrame::iterator end, const QPointF &point, Qt::HitTestAccuracy accuracy) const
{
    int position = -1;
    QTextFrame::iterator it = begin;
    for (it = begin; it != end; ++it) {
        QTextBlock block = it.currentBlock();
        QTextTable *table = qobject_cast<QTextTable*>(it.currentFrame());
        QTextFrame *subFrame = it.currentFrame();

        if (table) {
            QTextTableCell cell = m_state->hitTestTable(table, point);
            if (cell.isValid()) {
                position = hitTestIterated(cell.begin(), cell.end(), point,
                                accuracy);
                if (position == -1)
                    position = cell.lastPosition();
                return position;
            }
            continue;
        } else if (subFrame) {
            position = hitTestIterated(subFrame->begin(), subFrame->end(), point, accuracy);
            if (position != -1)
                return position;
            continue;
        } else {
            if (!block.isValid())
                continue;
        }
        // kDebug(32500) <<"hitTest[" << point.x() <<"," << point.y() <<"]";
        QTextLayout *layout = block.layout();
        if (point.y() > layout->boundingRect().bottom()) {
            // just skip this block. position = block.position() + block.length() - 1;
            continue;
        }
        for (int i = 0; i < layout->lineCount(); i++) {
            QTextLine line = layout->lineAt(i);
            // kDebug(32500) <<" + line[" << line.textStart() <<"]:" << line.y() <<"-" << line.height();
            if (point.y() > line.y() + line.height()) {
                position = line.textStart() + line.textLength();
                continue;
            }
            if (accuracy == Qt::ExactHit && point.y() < line.y()) // between lines
                return -1;
            if (accuracy == Qt::ExactHit && // left or right of line
                    (point.x() < line.x() || point.x() > line.x() + line.width()))
                return -1;
            if (point.x() > line.width() && layout->textOption().textDirection() == Qt::RightToLeft) {
                // totally right of RTL text means the position is the start of the text.
                return block.position() + line.textStart();
            }
            return block.position() + line.xToCursor(point.x());
        }
    }
    return -1;
}

void
ChatDialog::printTimeInCell(QTextTable *table, time_t timestamp)
{
  QTextCharFormat timeFormat;
  timeFormat.setForeground(Qt::gray);
  timeFormat.setFontUnderline(true);
  timeFormat.setUnderlineColor(Qt::gray);
  QTextTableCell timeCell = table->cellAt(0, 1);
  timeCell.setFormat(timeFormat);
  timeCell.firstCursorPosition().insertText(formatTime(timestamp));
}

void TextEditWidget::sl_InsertColumnAction_Triggered() {
	QTextTable* table = textField->textCursor().currentTable();
	if (!table) {
		WARNING("Wrong button state");
		return;
	}

	QTextTableCell currentCell = table->cellAt(textField->textCursor());
	table->insertColumns(currentCell.column() + 1, 1);
	QTextTableCell cell = table->cellAt(0, currentCell.column() + 1);
	textField->setTextCursor(cell.firstCursorPosition());
}

/*!
    \fn QTextCursor QTextTable::rowStart(const QTextCursor &cursor) const

    Returns a cursor pointing to the start of the row that contains the
    given \a cursor.

    \sa rowEnd()
*/
QTextCursor QTextTable::rowStart(const QTextCursor &c) const
{
    Q_D(const QTextTable);
    QTextTableCell cell = cellAt(c);
    if (!cell.isValid())
        return QTextCursor();

    int row = cell.row();
    QTextDocumentPrivate *p = d->pieceTable;
    QTextDocumentPrivate::FragmentIterator it(&p->fragmentMap(), d->grid[row*d->nCols]);
    return QTextCursor(p, it.position());
}

void TextDocumentModel::fillTable(QTextTable *table, QStandardItem *parent)
{
    for (int row = 0; row < table->rows(); ++row) {
        for (int col = 0; col < table->columns(); ++col) {
            QTextTableCell cell = table->cellAt(row, col);
            auto *item = new QStandardItem;
            item->setText(tr("Cell %1x%2").arg(row).arg(col));
            appendRow(parent, item, cell.format());
            for (auto it = cell.begin(); it != cell.end(); ++it)
                fillFrameIterator(it, item);
        }
    }
}

/*!
    \fn QTextCursor QTextTable::rowEnd(const QTextCursor &cursor) const

    Returns a cursor pointing to the end of the row that contains the given
    \a cursor.

    \sa rowStart()
*/
QTextCursor QTextTable::rowEnd(const QTextCursor &c) const
{
    Q_D(const QTextTable);
    QTextTableCell cell = cellAt(c);
    if (!cell.isValid())
        return QTextCursor();

    int row = cell.row() + 1;
    int fragment = row < d->nRows ? d->grid[row*d->nCols] : d->fragment_end;
    QTextDocumentPrivate *p = d->pieceTable;
    QTextDocumentPrivate::FragmentIterator it(&p->fragmentMap(), fragment);
    return QTextCursor(p, it.position() - 1);
}

QRectF KoTextLayoutTableArea::selectionBoundingBox(QTextCursor &cursor) const
{
    int lastRow = d->endOfArea->row;
    if (d->lastRowHasSomething == false) {
        --lastRow;
    }
    if (lastRow <  d->startOfArea->row) {
        return QRectF(); // empty
    }

    int firstRow = qMax(d->startOfArea->row, d->headerRows);
    QTextTableCell startTableCell = d->table->cellAt(cursor.selectionStart());
    QTextTableCell endTableCell = d->table->cellAt(cursor.selectionEnd());

    if (startTableCell == endTableCell) {
        if (startTableCell.row() < d->startOfArea->row || startTableCell.row() > lastRow) {
            return QRectF(); // cell is not in this area
        }
        KoTextLayoutArea *area = d->cellAreas[startTableCell.row()][startTableCell.column()];
        Q_ASSERT(area);
        return area->selectionBoundingBox(cursor);
    } else {
        int selectionRow;
        int selectionColumn;
        int selectionRowSpan;
        int selectionColumnSpan;
        cursor.selectedTableCells(&selectionRow, &selectionRowSpan, &selectionColumn, &selectionColumnSpan);

        qreal top, bottom;

        if (selectionRow < d->headerRows) {
            top = d->headerRowPositions[selectionRow] + d->headerOffsetY;
        } else {
            top = d->rowPositions[qMin(qMax(firstRow, selectionRow), lastRow)];
        }

        if (selectionRow + selectionRowSpan < d->headerRows) {
            bottom = d->headerRowPositions[selectionRow + selectionRowSpan] + d->headerOffsetY;
        } else {
            bottom = d->rowPositions[d->headerRows] + d->headerOffsetY;
            if (selectionRow + selectionRowSpan >= firstRow) {
                bottom = d->rowPositions[qMin(selectionRow + selectionRowSpan, lastRow + 1)];
            }
        }

        return QRectF(d->columnPositions[selectionColumn], top,
                      d->columnPositions[selectionColumn + selectionColumnSpan] - d->columnPositions[selectionColumn], bottom - top);
    }
}

void XmlWriter::processTableCell(QDomElement &parent, const QTextTableCell &cell)
{
    QDomElement element = document->createElement("cell");
    element.setAttribute("row", cell.row());
    element.setAttribute("column", cell.column());
    
    QTextFrame::iterator it;
    for (it = cell.begin(); !(it.atEnd()); ++it) {

        QTextFrame *childFrame = it.currentFrame();
        QTextBlock childBlock = it.currentBlock();

        if (childFrame)
            processFrame(element, childFrame);
        else if (childBlock.isValid())
            processBlock(element, childBlock);
    }
    parent.appendChild(element);
}

void ChatView::appendMessage(const QString &sender, const QString &message)
{
	QTextCursor cellCursor = table->cellAt(table->rows() - 1, 0).lastCursorPosition();
	cellCursor.insertText(QDateTime::currentDateTime().toString("[hh:mm]"));
	QTextTableCell senderCell = table->cellAt(table->rows() - 1, 1);
	QTextCharFormat senderFormat;
	if (sender == ownName) {
		senderFormat.setFontWeight(QFont::Bold);
		senderFormat.setForeground(Qt::red);
	} else
		senderFormat.setForeground(Qt::blue);
	senderCell.setFormat(senderFormat);
	cellCursor = senderCell.lastCursorPosition();
	cellCursor.insertText(sender);
	QTextTableCell messageCell = table->cellAt(table->rows() - 1, 2);
	QTextCharFormat messageFormat;
	if (sender.isEmpty())
		messageFormat.setForeground(Qt::darkGreen);
	messageCell.setFormat(messageFormat);
	cellCursor = messageCell.lastCursorPosition();
	cellCursor.insertText(message);
	
	table->appendRows(1);
	
	verticalScrollBar()->setValue(verticalScrollBar()->maximum());
}

void InsertTableColumnCommand::redo()
{
    KoTableColumnAndRowStyleManager carsManager = KoTableColumnAndRowStyleManager::getManager(m_table);
    if (!m_first) {
        carsManager.insertColumns(m_column, 1, m_style);
        KUndo2Command::redo();
    } else {
        m_first = false;
        QTextTableCell cell = m_table->cellAt(*m_textEditor->cursor());
        m_column = cell.column() + (m_right ? 1 : 0);
        m_style = carsManager.columnStyle(cell.column());
        m_table->insertColumns(m_column, 1);
        carsManager.insertColumns(m_column, 1, m_style);

        if (m_right && m_column == m_table->columns()-1) {
            // Copy the cell style. for the bottomright cell which Qt doesn't
            QTextTableCell cell = m_table->cellAt(m_table->rows()-1, m_column - 1);
            QTextCharFormat format = cell.format();
            cell = m_table->cellAt(m_table->rows()-1, m_column);
            cell.setFormat(format);
        }

        if (m_changeId) {
            for (int i=0; i < m_table->rows(); i++) {
                QTextTableCellFormat cellFormat = m_table->cellAt(i, m_column).format().toTableCellFormat();
                cellFormat.setProperty(KoCharacterStyle::ChangeTrackerId, m_changeId);
                m_table->cellAt(i, m_column).setFormat(cellFormat);
            }
        }
    }
}