Hi Werner, On Mon, Dec 15, 2014 at 4:35 PM, Werner Lehmann <lehm...@media-interactive.de> wrote: > Hi Tomas, > > On 15.12.2014 16:10, Tomas Mikula wrote: >> >> To add an idea, semi-transparent scrollbars could be shown over the >> content when the mouse approaches the edge. This would avoid >> flickering andto save space at the same time. I realize one could not >> use this if the scrollbars would cover some interactive controls at >> the edge of the content. > > > Sounds similar to invisible scrollbars which appear on hover only. > Personally I don't like either one. I guess it is a matter of taste. In a > touch scenario it is a bit of problem though because usually you cannot rely > on hover events.
Show scrollbars on hover might be even a better idea. On a touch device, scrollbars could be shown after an initial tiny scroll by swipe. >> Also, I would like to see some new creative way of scrolling the >> content, especially for cases when the full length of the content is >> not known, e.g. a ListView with variable cell sizes, or a possibly >> infinite stream of items that are loaded as needed. In these cases, >> the scrollbar length always lies about the actual total length of the >> content. > > > If you have variable cell sizes an easy way to map this to a scrollbar is to > use the number of items, possibly with some adjustments involving the height > of the known cells. From my impression this is what virtual flow does but I > could be wrong. My point was that any such mapping to a scrollbar is only an estimate of the total content length. So why bother trying to indicate the total length by a scroll bar at all. > An infinite stream of items can be scrolled with the "Google Picasa" light > table approach. You can find an implementation of this concept in > ControlsFX, see the PlusMinusSlider control. Thanks, I wasn't aware of PlusMinusSlider. Best, Tomas
