Getting a higher quality image from QWebPage
I'm creating an image capture utility to allow uses to download snapshots of the charts and graphs that our web application generates. I've used the "Framecapture":http://qt-project.org/doc/qt-5.0/qtwebkitexamples/webkitwidgets-framecapture.html example application as a starting point.
It works well, but the image quality is too low for our needs. I need to be able to created higher resolution images.
My understanding from reading the "QWebPage documentation":http://qt-project.org/doc/qt-5.1/qtwebkit/qwebpage.html#details is that I need to increase the pixel density ratio in the Viewports Attributes.
Unfortunately, I cannot figure out how to do that. Seems like I might need to do something with the X11 server that QWebPage talks to to get the Viewports Attributes, but I'm not a real expert in any of this stuff, so am having a hard time figuring it out.
Could somebody please give me some pointers?
The code that I'm using is basically like this:
QImage image(m_page.mainFrame()->contentsSize(), QImage::Format_ARGB32_Premultiplied);