Defer text buffer redrawing

[skyline75489]

Summary of the Pull Request

This is a draft PR that's intended to defer all kinds of redrawing.

References

#2960 #3075

PR Checklist

• Closes #xxx
• CLA signed. If not, go over here and sign the CLA
• Tests added/passed
• Requires documentation to be updated
• I've discussed this with core contributors already. If not checked, I'm ready to accept this work might be rejected in favor of a different grand plan. Issue number where discussion took place: #xxx

Detailed Description of the Pull Request / Additional comments

Coming from #2960, combined with an inspiring issue from #3075 , we are indeed doing a lot of unnecessary redrawing when there are still incoming text.

I'd love to hear @miniksa 's thought on this.

Validation Steps Performed

[skyline75489]

I've tried several things and it turns out this can't be accomplished easily. To make WT more like iTerm2, we'll need to rerwrite the entire renderering pipeline to process as much input as we could before actually renderering it to screen. I'll close this for now. If anyone wants to pick it, feel free to do so.

[skyline75489]

I've tried several things and it turns out this can't be accomplished easily. To make WT more like iTerm2, we'll need to rerwrite the entire renderering pipeline to process as much input as we could before actually renderering it to screen. I'll close this for now. If anyone wants to pick it, feel free to do so.