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Printing: Add progress updating ability to print dialog

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The progress bar shows the progress of both the rendering part and the
templating part, unfortunately we can't check the progress of Grantlee
templating engine so the progess bar doesn't have a constant pace it
stops a little around 20%.

Signed-off-by: Gehad elrobey <gehadelrobey@gmail.com>
Signed-off-by: Lubomir I. Ivanov <neolit123@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Gehad elrobey 2015-05-30 15:32:15 +02:00 • committed by Dirk Hohndel
parent 231f90bd26
commit a820688aeb
5 changed files with 42 additions and 2 deletions
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11
printer.cpp
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@ -17,6 +17,7 @@ Printer::Printer(QPrinter *printer)
printer->setPaperSize(QPrinter::A4);
printer->setPrintRange(QPrinter::AllPages);
printer->setResolution(300);
done = 0;
}
void Printer::render()
@ -33,15 +34,25 @@ void Printer::render()
for (int i = 0; i < Pages; i++) {
webView->page()->mainFrame()->render(&painter, QWebFrame::ContentsLayer);
webView->page()->mainFrame()->scroll(0, A4_300DPI_HIGHT);
//rendering progress is 4/5 of total work
emit(progessUpdated((i * 80.0 / Pages) + done));
if (i < Pages - 1)
printer->newPage();
}
painter.end();
}
//value: ranges from 0 : 100 and shows the progress of the templating engine
void Printer::templateProgessUpdated(int value)
{
done = value / 5; //template progess if 1/5 of total work
emit progessUpdated(done);
}
void Printer::print()
{
TemplateLayout t;
connect(&t, SIGNAL(progressUpdated(int)), this, SLOT(templateProgessUpdated(int)));
webView = new QWebView();
webView->setHtml(t.generate());
render();