Derrell Lipman schrieb: > On Mon, Feb 2, 2009 at 4:51 PM, Jean-Baptiste BRIAUD -- Novlog > <j-b.bri...@novlog.com <mailto:j-b.bri...@novlog.com>> wrote: > > I didn't had time to read as I would like that virtual widget for > qooxdoo, > so I might asked stupid question :-) > > I understood the benefit of that virtual widget as not rendering the a > part of widget that can't be seen (eg : a table with a lot of rows). > So, what is the point of pre-rendering a widget part that can't be > seen ? > > > The point of pre-rendering a few rows above and below, or a few > columns to the left and the right of the portion that can be seen is > that you can then scroll smoothly by simply moving the X and Y > coordinates of the viewport. Scrolling can be made as smooth, this > way, as if the entire page were rendered and browser scrollbars were > used... yet the benefits of virtual widgets remain, because NOT all > rows and/or columns are rendered; only a few to any side of the > visible area. > I couldn't have put it better :-)
> My suggestion was to allow rendering all of the rows and columns so > that the same code could be used both for on-screen rendering and for > generating reports that contain the widget. In the on-screen case, > only a few extra rows/columns would be rendered for smooth scrolling. > In the printable case, the entire widget would be rendered and the > widget's inner HTML plugged in to the report. For this purpose you could use the layers directly without the scroller or pane. Just tell the layer to render all rows and all columns and then copy the innerHTML into your report. I haven't thought about this use case before but I like this idea. Best Fabian -- Fabian Jakobs JavaScript Framework Developer 1&1 Internet AG Brauerstraße 48 76135 Karlsruhe Amtsgericht Montabaur HRB 6484 Vorstand: Henning Ahlert, Ralph Dommermuth, Matthias Ehrlich, Thomas Gottschlich, Matthias Greve, Robert Hoffmann, Markus Huhn, Oliver Mauss, Achim Weiss Aufsichtsratsvorsitzender: Michael Scheeren ------------------------------------------------------------------------------ Create and Deploy Rich Internet Apps outside the browser with Adobe(R)AIR(TM) software. With Adobe AIR, Ajax developers can use existing skills and code to build responsive, highly engaging applications that combine the power of local resources and data with the reach of the web. Download the Adobe AIR SDK and Ajax docs to start building applications today-http://p.sf.net/sfu/adobe-com _______________________________________________ qooxdoo-devel mailing list qooxdoo-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/qooxdoo-devel
