textView does not respond to key presses

[LazarenkoA]

Hi. There is an application based on a table, data is filled into the table. By clicking on the hot key on a line, a textView opens in which the source data is displayed, there can be a lot of data (several thousand lines), if do it like this

txt: = fmt.Sprintf (`[" all "]% v [" "]`, strings.Join (v.sourceLines, "\ n"))
textView.SetText (txt)

there is a freezed when opening, if you display line by line in a separate goroutine then the textView opens immediately, but until all the lines are loaded the textView does not respond to key presses (up, down, other hot keys). In general, working with a textView with large volumes is very slow, can you tell me it is worth using something else instead of a textView, or is there some option that will help me?

[rivo]

TextView is not made for very large texts. So it will be slow. There are some proposals to speed up text views but I haven't gotten around to looking at them. The code is already pretty complex and rewriting it for speed will take a lot of time.

At the moment, there is no alternative.

[rivo]

I will close this issue. As mentioned, I don't see a major rewrite on the horizon. But I just upgraded to the latest rivo/uniseg package which may bring a slight improvement to the TextView. (I hope — I haven't run a benchmark yet.)