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Rendering improvment request: temporarily disable text layouting when window is doing maximizing and restoring from maximizing #19391

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opened 2026-01-31 06:41:56 +00:00 by claunia · 0 comments
claunia commented 2026-01-31 06:41:56 +00:00
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Originally created by @epiciskandar on GitHub (Feb 15, 2023).

Description of the new feature/enhancement

When the Terminal window maximizing/restoring under Windows 11, Windows(maybe DWM?) will make that action animationized. This will make Terminal recalculating the width/height of the display area per frame, and eventually cause text re-layouting and rendering with different results. At the first few frame, it will looks unstable and flashing。

below is some frames while Terminal window is maximizing:

  • the begining state: normal (misplaced prompts is intentional)
    image
  • the first few frames one by one:
    image
    image
    image
  • nearly to the last frame:
    image

The first one or two frame looks unstable, starting from the 3rd frame, it looks same to the final state.So, can the Terminal just shortly disable/ignore layout calculate works while it starts doing maximizing/restoring?

Proposed technical implementation details (optional)

Originally created by @epiciskandar on GitHub (Feb 15, 2023). <!-- 🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨 I ACKNOWLEDGE THE FOLLOWING BEFORE PROCEEDING: 1. If I delete this entire template and go my own path, the core team may close my issue without further explanation or engagement. 2. If I list multiple bugs/concerns in this one issue, the core team may close my issue without further explanation or engagement. 3. If I write an issue that has many duplicates, the core team may close my issue without further explanation or engagement (and without necessarily spending time to find the exact duplicate ID number). 4. If I leave the title incomplete when filing the issue, the core team may close my issue without further explanation or engagement. 5. If I file something completely blank in the body, the core team may close my issue without further explanation or engagement. All good? Then proceed! --> # Description of the new feature/enhancement <!-- A clear and concise description of what the problem is that the new feature would solve. Describe why and how a user would use this new functionality (if applicable). --> When the Terminal window maximizing/restoring under Windows 11, Windows(maybe DWM?) will make that action animationized. This will make Terminal recalculating the width/height of the display area per frame, and eventually cause text re-layouting and rendering with different results. At the first few frame, it will looks unstable and flashing。 below is some frames while Terminal window is maximizing: * the begining state: normal (***misplaced prompts is intentional***) ![image](https://user-images.githubusercontent.com/1884240/219036797-8d7f2732-7e2d-4b35-a21a-45b64ded7d67.png) * the first few frames one by one: ![image](https://user-images.githubusercontent.com/1884240/219037371-54f4d7b9-0431-45a8-9f6d-fbf821b4b58a.png) ![image](https://user-images.githubusercontent.com/1884240/219037429-79f6644b-112c-4324-aa4f-0c0eb29756aa.png) ![image](https://user-images.githubusercontent.com/1884240/219037499-52b89938-dad7-4b80-a49d-e5a050fd1db4.png) * nearly to the last frame: ![image](https://user-images.githubusercontent.com/1884240/219038956-e1de023a-0668-421e-be5c-45d1cf87633f.png) The first one or two frame looks unstable, starting from the 3rd frame, it looks same to the final state.So, can the Terminal just shortly disable/ignore layout calculate works while it starts doing maximizing/restoring? # Proposed technical implementation details (optional) <!-- A clear and concise description of what you want to happen. -->
claunia added the Issue-FeatureNeeds-TriageNeeds-Tag-FixNeeds-Attention labels 2026-01-31 06:41:57 +00:00
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Reference: starred/terminal#19391
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