Printing QTableWidget

[rmagro]

Hi all guys,

I know there was a discussion in this forum in the past,
but even if I put the best of my attention I was not able to
get the goal

Can someone help?

Thank you in advance.

Roberto

[rmagro]

Hi all,

How to print aQTableWidget?
I know there was a discussion in this forum in the past,
but even if I put the best of my attention I was not able to
get the goal

If someone has example code please can help?

Thank you in advance.

Roberto

[rmagro]

Hi

about printing a QtableWidget,
I tried again the code suggested once by JPN,
but no success..

Attached you will find what I get

Any clue? any idead..?
What could be wrong?

Thank you,

Roberto

[jpn]

Hi. First of all, please don't start multiple threads on the same subject.

What could be wrong?

You might want to adjust the scaling a bit. Looks like the content is scaled to fit the page.

[rmagro]

Thanks JPN

You might want to adjust the scaling a bit. Looks like the content is scaled to fit the page.[/QUOTE]

Which line of your suggested code should I modify?

regards

[jpn]

Which line of your suggested code should I modify?

Sorry, but which code snippet are you referring to?

[rmagro]

Oh sorry..

this is the link you posted once..

http://www.qtcentre.org/forum/f-qt-p...g-3796.html#10

..should I add something??

If so how to complete it?

Thanka a lot

Roby

[jpn]

It depends how you want it to be. Maybe drawing it without scaling suits your needs:

// painter.drawPixmap(printer.pageRect(), pixmap, pixmap.rect());
painter.drawPixmap(printer.pageRect().topLeft(), pixmap);

// painter.drawPixmap(printer.pageRect(), pixmap, pixmap.rect());
painter.drawPixmap(printer.pageRect().topLeft(), pixmap);

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Or alternatively use HTML and QTextDocument as suggested by Jacek at the end of the thread.

[rmagro]

JPN,

following your suggestion it Prints the entire table ..in the top left corner of the page..

only a problem...

the table is extremely little...I can't even see it ..

How come?

is there a scaling problem?

Roby

[jpn]

Give it a try with QPrinter::ScreenResolution. Presumably the another option is to scale according to used resolution in case it doesn't look good enough.

[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