Printing QTableWidget

[rmagro]

Indeed now it look grater but not all the columns fit on the page..

"Presumably the another option is to scale according to used resolution in case it doesn't look good enough"

Can you show me how to do it?

[rmagro]

I tried the following:

QPrinter printer;
int dpi = printer.resolution();
printer.setResolution(dpi);

but it doesn't change the fact that the table is not entirely printed..

Roby

[jpn]

int dpi = printer.resolution();
printer.setResolution(dpi);

int dpi = printer.resolution();
printer.setResolution(dpi);

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I'm sorry to say but this does nothing at all. One option is to go with QPainter::scale(). A scale factor of 0.5 makes it half of the original size, 2 makes it double.

[rmagro]

Many thanks JPN
for your help!

I tried what you suggested but it does not look good yet..

The problem is that if I choose "painter.scale(0.5,0.5); "
it prints the entire table but che characters inside the cells
are not visible because of bad resolution(maybe too small)

Further suggestions?

Thank again

Roby

[rmagro]

I rolled back to

QPrinter printer(QPrinter::HighResolution);

QPrinter printer(QPrinter::HighResolution);

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and I added

printer.setOrientation(QPrinter::Landscape);
painter.scale(4,4);

printer.setOrientation(QPrinter::Landscape);
painter.scale(4,4);

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Now it fits the page...

but hey ...where is table bar titles??

How to get it ??

Thank for your reply

Roberto.

[rmagro]

JPN,

I tried doing this, but nothing..yet

what is wrong with the following..

// redirect table's painting on a pixmap 
        QPixmap pixmap(totalWidth, totalHeight);
		QPainter::setRedirected(tableWidget->horizontalHeader()->viewport(), &pixmap);
        QPaintEvent event(QRect(0, 0, totalWidth, totalHeight));
		QApplication::sendEvent(tableWidget->horizontalHeader()->viewport(), &event);
		QPainter::restoreRedirected(tableWidget->horizontalHeader()->viewport());
 
		QPixmap pixmap1(totalWidth, totalHeight);
		QPainter::setRedirected(tableWidget->viewport(), &pixmap1);
        QPaintEvent event1(QRect(0, 1, totalWidth, totalHeight));
        QApplication::sendEvent(tableWidget->viewport(), &event1);
		QPainter::restoreRedirected(tableWidget->viewport());
 
        // print scaled pixmap 
        QPainter painter(&printer);
		painter.scale(5,5);
		painter.drawPixmap(printer.pageRect().topLeft(), pixmap, pixmap.rect());
		painter.drawPixmap(printer.pageRect().topRight(), pixmap1, pixmap1.rect());

// redirect table's painting on a pixmap 
        QPixmap pixmap(totalWidth, totalHeight);
		QPainter::setRedirected(tableWidget->horizontalHeader()->viewport(), &pixmap);
        QPaintEvent event(QRect(0, 0, totalWidth, totalHeight));
		QApplication::sendEvent(tableWidget->horizontalHeader()->viewport(), &event);
		QPainter::restoreRedirected(tableWidget->horizontalHeader()->viewport());

		QPixmap pixmap1(totalWidth, totalHeight);
		QPainter::setRedirected(tableWidget->viewport(), &pixmap1);
        QPaintEvent event1(QRect(0, 1, totalWidth, totalHeight));
        QApplication::sendEvent(tableWidget->viewport(), &event1);
		QPainter::restoreRedirected(tableWidget->viewport());

        // print scaled pixmap 
        QPainter painter(&printer);
		painter.scale(5,5);
		painter.drawPixmap(printer.pageRect().topLeft(), pixmap, pixmap.rect());
		painter.drawPixmap(printer.pageRect().topRight(), pixmap1, pixmap1.rect());

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Thanks for your patience,

Roby

[jpn]

Perhaps it would be easier to convert contents of the table to HTML and use QTextDocument::print()?

[rmagro]

Please provide some examples,

Thank you

Roberto

[jpn]

What does the table contain? Plain text? Images? Could you provide a screenshot?

[rmagro]

Here it is..

Then, the following to show you how I fill in the table:

QTableWidgetItem *item = new QTableWidgetItem;
tableWidget->item(row, 1)->setText(tr("Verifica corretta"));

QTableWidgetItem *item = new QTableWidgetItem;
tableWidget->item(row, 1)->setText(tr("Verifica corretta"));

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many thanks..
Roby

[rmagro]

Hi Qt Community,

I'm using the following code to print out a QTableWidget,
but I only get the the contents inside the table and not the horizontalHeader..

QPrinter printer(QPrinter::HighResolution);
	printer.setOrientation(QPrinter::Landscape);
 
	QPrintDialog dlg(&printer, this);
 
    if (dlg.exec() == QDialog::Accepted) 
    {
        // calculate the total width/height table would need without scaling  
        const int rows = tableWidget->model()->rowCount(); 
        const int cols = tableWidget->model()->columnCount();  
        double totalWidth = 0.0;
 
        for (int c = 0; c < cols; ++c)  
        {  
			totalWidth += tableWidget->columnWidth(c); 
        }
 
        double totalHeight = 0.0;
 
        for (int r = 0; r < rows; ++r) 
        { 
            totalHeight += tableWidget->rowHeight(r);
        }
 
        // redirect table's painting on a pixmap 
        QPixmap pixmap(totalWidth, totalHeight);
		QPainter::setRedirected(tableWidget->viewport(), &pixmap);
        QPaintEvent event(QRect(0, 0, totalWidth, totalHeight));
        QApplication::sendEvent(tableWidget->viewport(), &event);
        QPainter::restoreRedirected(tableWidget->viewport());
 
        // print scaled pixmap 
        QPainter painter(&printer);
		painter.scale(4,4);
        //painter.drawPixmap(printer.pageRect(), pixmap, pixmap.rect());
		painter.drawPixmap(printer.pageRect().topLeft(), pixmap, pixmap.rect()); 
    }

QPrinter printer(QPrinter::HighResolution);
	printer.setOrientation(QPrinter::Landscape);
	
	QPrintDialog dlg(&printer, this);

    if (dlg.exec() == QDialog::Accepted) 
    {
        // calculate the total width/height table would need without scaling  
        const int rows = tableWidget->model()->rowCount(); 
        const int cols = tableWidget->model()->columnCount();  
        double totalWidth = 0.0;

        for (int c = 0; c < cols; ++c)  
        {  
			totalWidth += tableWidget->columnWidth(c); 
        }

        double totalHeight = 0.0;

        for (int r = 0; r < rows; ++r) 
        { 
            totalHeight += tableWidget->rowHeight(r);
        }

        // redirect table's painting on a pixmap 
        QPixmap pixmap(totalWidth, totalHeight);
		QPainter::setRedirected(tableWidget->viewport(), &pixmap);
        QPaintEvent event(QRect(0, 0, totalWidth, totalHeight));
        QApplication::sendEvent(tableWidget->viewport(), &event);
        QPainter::restoreRedirected(tableWidget->viewport());

        // print scaled pixmap 
        QPainter painter(&printer);
		painter.scale(4,4);
        //painter.drawPixmap(printer.pageRect(), pixmap, pixmap.rect());
		painter.drawPixmap(printer.pageRect().topLeft(), pixmap, pixmap.rect()); 
    }

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What to add to get it?

Thanks you very much for your help,

Roby

[jpn]

Here it is..

Alright, so the table contains multi line text and icons. What do you think about something like this?