Export QTableView to PDF with a push button

imene

void MainWindow::on_SaveReport_Button_clicked()
{
    QString filename="users.pdf";
       //Parametres d'impression
       QPrinter printer(QPrinter::HighResolution);
       printer.setOutputFileName(filename);
       printer.setPageSize(QPrinter::A4);
       printer.setOutputFormat(QPrinter::PdfFormat);

       QPainter painter(&printer);
       painter.setRenderHints(QPainter::Antialiasing | QPainter::TextAntialiasing | QPainter::SmoothPixmapTransform);
       m_ui->Table_CSV->render( &painter );
       painter.end();
}

How can i change the table size to make it bigger in pdf file ?
Can i change the path where the file is saved ?

JonB

@imene said in Export QTableView to PDF with a push button:

Can i change the path where the file is saved ?

Yes, change QString filename="users.pdf"; to whatever you want, or use QFileDialog::getSaveFileName() if you mean you want the user to choose at runtime.

imene

i want to save pdf file in an other folder, and i want to change the size of the table in pdf file:

printer.setPageSize(QPrinter::A4);

how to deal with this function ?

JonB

@imene said in Export QTableView to PDF with a push button:

i want to save pdf file in an other folder

So do so.

imene

How to set the size of pdf file ?

JonB

@imene
You are trying to call QPrinter::setPageSize() which uses bool QPagedPaintDevice::setPageSize(const QPageSize &pageSize) but you are looking at documentation for void QPageLayout::setPageSize(const QPageSize &pageSize, const QMarginsF &minMargins = QMarginsF(0, 0, 0, 0)) for some reason.

imene

I used this code and it works !

void MainWindow::on_SaveReport_Button_clicked()
{
    QPixmap pix(m_ui->Table_CSV->size());
      QPainter painter(&pix);
      m_ui->Table_CSV->render(&painter);
      painter.end();
      QPrinter printer(QPrinter::HighResolution);
      printer.setOrientation(QPrinter::Landscape);
      printer.setOutputFormat(QPrinter::PdfFormat);
      printer.setPaperSize(QPrinter::A4);
      printer.setOutputFileName("test.pdf"); // will be in build folder
     
      painter.begin(&printer);
      double xscale = printer.pageRect().width() / double(pix.width());
      double yscale = printer.pageRect().height() / double(pix.height());
      double scale = qMin(xscale, yscale);
      painter.translate(printer.paperRect().x() + printer.pageRect().width() / 2,
                        printer.paperRect().y() + printer.pageRect().height() / 2);
      painter.scale(scale, scale);
      painter.translate(-m_ui->Table_CSV->width() / 2, -m_ui->Table_CSV->height() / 2);
      painter.drawPixmap(0, 0, pix);

    //QTextDocument doc;
    //doc.setHtml("htmlcontent");
    //doc.drawContents(&painter);
    painter.end();
      QMessageBox::information(this,"Done","PDF is saved successfully");
}

JonB

@imene said in Export QTableView to PDF with a push button:

printer.setOutputFileName("test.pdf"); // will be in build folder

No, it won't. This is "coincidence" (maybe from Qt Creator). It will actually be in whatever the "current working directory" happens to be when a user runs your program, which you don't know/control.

Normally --- unless you want this behaviour and know what you are doing --- do not use relative pathnames like this. Think about where you want the file to be, and perhaps use Qt's QStandardPaths Class to specify that.

imene

@JonB said in Export QTableView to PDF with a push button:

QString filename="users.pdf";

I fixe it:

auto filename = QFileDialog::getSaveFileName(this, "Save Report", QDir::rootPath(), "PDF File(*.pdf)");
      printer.setOutputFileName(filename);

Please help:
I've an other problem when the interface is minimized it only take a capture of the table view in the interface not the all the table!