[ Suggestion ] Lister scrollbars PageSize calculation

[Alextp]

See the difference between Lister and UV:

http://atorg.net.ru/temp/tcClipboard01.gif
http://atorg.net.ru/temp/tcClipboard02.gif


Lister doesn't calculate scroll bars' PageSize. Why not to add this.

[m^2]

Can you do this w/out reading whole file? I don't think so...

[Alextp]

2m^2
UV does this w/out reading the whole file.

[m^2]

So I'm for
Could you say: how?
You need too know ho meny line breaks are there, don't you?

[Alextp]

2m^2
No: no line breaks.

I use this method:
PageSize is proportional to number of bytes (not lines!!)
currently on screen. Lister should know this number after redraw is complete.

[Sir_SiLvA]

2m^2
UV does this w/out reading the whole file.

What is UV ?

[Stitscher]

UniversalViewer!
See the link in the first post and search the forum.

[m^2]

Ok, so it's just approximation. But I'm still for.
Thank you.

[Clo]

2Stitscher

Hallo !

 :lol:  :lol:   :lol:

 VG
Claude
Clo

[ghisler(Author)]

Lister uses permille (0-1000) for the scroll bar, that's why it always has the same thumb size.

[Alextp]

2ghisler(Author)

Lister uses permille (0-1000) for the scroll bar, that's why it always has the same thumb size.

And what's the problem with permilles? I use Int16 for the scrollbar. But you may also use permilles, no problem with this. You just need to set bar size to a value proportional to visible area.