Re: how to scroll ListView to make a specific item visible (only when not visible already)

[Tomas Mikula]

On Wed, Sep 25, 2013 at 10:04 PM, Tomas Mikula tomas.mik...@gmail.com wrote:
 Hi,

 does anyone know of a way to make a specific ListView item visible,
 but don't scroll the ListView at all if the item is already in the
 viewport?

I will answer my question from months ago:

I have to dig up the VirtualFlow from ListView and the method
VirtualFlow.show(int index)
does exactly what I wanted.

Best,
Tomas


 I am working on a code editor, displaying lines in a ListView.
 Whenever the caret moves up/down, I want to bring the current line to
 the viewport.

 Thanks,
 Tomas

 P.S.: To determine if an item is visible, I tried tracking non-empty
 cells by listening to ListCell#emptyProperty(), but a non-empty cell
 is not necessarily visible.

Re: how to scroll ListView to make a specific item visible (only when not visible already)

[Stephen F Northover]

Thank for coming back and answering.

Steve

On 2013-12-13 5:34 PM, Tomas Mikula wrote:

On Wed, Sep 25, 2013 at 10:04 PM, Tomas Mikula tomas.mik...@gmail.com wrote:

Hi,

does anyone know of a way to make a specific ListView item visible,
but don't scroll the ListView at all if the item is already in the
viewport?

I will answer my question from months ago:

I have to dig up the VirtualFlow from ListView and the method
VirtualFlow.show(int index)
does exactly what I wanted.

Best,
Tomas


I am working on a code editor, displaying lines in a ListView.
Whenever the caret moves up/down, I want to bring the current line to
the viewport.

Thanks,
Tomas

P.S.: To determine if an item is visible, I tried tracking non-empty
cells by listening to ListCell#emptyProperty(), but a non-empty cell
is not necessarily visible.