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Fix: The viewport stops working when the program is minimized. #4832

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@rustbasic rustbasic commented Jul 16, 2024

Fix: The viewport stops working when the program is minimized.

Issue :

The viewport stops working when the program is minimized.

Solution :

When request_redraw() is performed in Minimized state, the occasional screen tearing phenomenon has disappeared.
( Probably expected to be the effect of #4814 )

To address the issue of the Immediate Viewport not updating in Minimized state, we can call request_redraw().

Comment on lines +192 to +193
window.request_redraw();
true
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@emilk emilk Jul 31, 2024

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This reverts the changes you added in:

Won't this cause high CPU usage on Windows when minimized again?

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@rustbasic rustbasic Jul 31, 2024

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Yes, it's ok as long as you don't keep calling request_repaint().

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If someone want to keep calling request_repaint() but not call it when minimized, someone can do the following.
It works fine.

            let is_maximized = ui.input(|i| i.viewport().maximized.unwrap_or(false));
            if !is_minimized {
                ui.ctx().request_repaint();
            }

@rustbasic rustbasic requested a review from emilk July 31, 2024 09:49
@rustbasic rustbasic closed this Jul 31, 2024
emilk pushed a commit that referenced this pull request Sep 1, 2024
Fix: The viewport stops working when the program is minimized.   

Fix: Logically, the weird parts have been normalized.
                                                               
**Issue :**
The viewport stops working when the program is minimized.
                         
* Related #3321
* Related #3877
* Related #3985
* Closes #3972
* Closes #4772
* Related #4832 
* Closes #4892
**Solution :**
When `request_redraw()` is performed in Minimized state, the occasional
screen tearing phenomenon has disappeared.
( Probably expected to be the effect of #4814 )
To address the issue of the `Immediate Viewport` not updating in
Minimized state, we can call `request_redraw()`.
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