Subj : Lightbar question
To   : Alpha
From : apam
Date : Thu Mar 18 2021 11:49 am

 > Just curious about how, technically, lightbars work. Do you have to
 > re-draw each affected row -- basically decrement the Y positions,
 > triggered by arrow keys, page up, etc.? Plus, change the
 > foreground/background colors for the "active" rows? Phew!

Pretty much. I keep track of the start (the first row) the selected row
and the height of the terminal.

Then it is more or less, if the start changes, it needs to redraw the
whole screen, else just change the previously selected and newly selected
lines each time an arrow key is selected.

Now you mentioned it, I haven't added page up etc, i probably should.

Andrew

--
|03Andrew Pamment |08(|11apam|08)
|13Happy|10Land |14v2.0|08!


--- Talisman v0.13-dev (Linux/x86_64)
 * Origin: HappyLand v2.0 - telnet://happylandbbs.com:11892/ (21:1/182)

.