Print QStandardItemModel

I want to print rows of "QStandardItemModel". I use this code, It works but table is not beautiful. I don't know how to adjust row height and I don't know how to set column widths based on the width of cells in the first row of the table.

Code:

---

QPrinter printer;
    printer.setPageSize(QPrinter::A4);
    printer.setFullPage(true);
 
    QPrintDialog *dlg = new QPrintDialog(&printer,0);
    if(dlg->exec() == QDialog::Accepted) {
 
        QPainter painter;
        if (painter.begin(&printer)) {
 
            painter.translate(0,0);
 
			int position = 0;
            int rowCount=newMyModel->rowCount(QModelIndex());
 
            for(int r=0;r<rowCount;r++)
			{
                if( position > painter.window().height()-100 ) 
				{
                    printer.newPage();
 
                    position = 0;
                    painter.resetTransform();
                    painter.translate(0, 0);
                }
 
                QString html="<table style='page-break-after:always' border='1' width='100%' cellpadding =10  style='border-width: 1px;border-style: solid;border-color: #9e9e9e;width:100%'>";
 
                    index=newMyModel->index(r, 0);
 
                    QVariant prop1=index.data(MyModel::prop1);
                    QVariant prop2=index.data(MyModel::prop2);
 
					'''
					'''
					'''
 
                    html.append(
                    "<tr style='background-color:red'>"
                    "<td style='border-width: 1px;padding:10; border-style: solid; border-color: #9e9e9e;width:16%'>"+prop1.toString()+" </td>"
                    "<td style='border-width: 1px;padding:10; border-style: solid; border-color: #9e9e9e;width:16%'>"+prop2.toString()+" </td>"
                    ...
					...
					...);
 
                }
 
                html.append("</table>");
 
                QRect rect = painter.boundingRect(painter.window(),
                                                  Qt::AlignJustify | Qt::TextWordWrap,
                                                  html);
                QTextDocument doc;                
                doc.setHtml(html);
                doc.drawContents(&painter, rect);
 
                painter.drawRect(rect);
                painter.translate(0, rect.height());
                position += rect.height();
            }
            painter.end();
        }
    }

---

And I use this code but it does not work (Print blank page).

Code:

---

QPrinter printer;
    printer.setPageSize(QPrinter::A4);
    printer.setFullPage(true);
 
    QPrintDialog *dlg = new QPrintDialog(&printer,0);
    if(dlg->exec() == QDialog::Accepted) {
 
        QTableView* pTableView = new QTableView;
        pTableView->setModel(newMyModel);
 
        int width = 0;
        int height = 0;
        int columns = newMyModel->columnCount();
        int rows = newMyModel->rowCount();
 
        pTableView->resizeColumnsToContents();
 
        for( int i = 0; i < columns; ++i ) {
            width += pTableView->columnWidth(i);
        }
 
        for( int i = 0; i < rows; ++i ) {
            height += pTableView->rowHeight(i);
        }
 
        pTableView->setFixedSize(width, height);
        pTableView->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
        pTableView->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
 
         pTableView->render(&printer);

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