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PerWindowState

Struct PerWindowState 

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pub struct PerWindowState {
    pub label: String,
    pub x: i32,
    pub y: i32,
    pub width: u32,
    pub height: u32,
    pub placement: WindowPlacement,
}
Expand description

Persisted geometry for one labeled window.

placement captures the full WindowPlacement enum (Floating / Maximized / Fullscreen / Minimized). On restore, Minimized is downgraded to Floating so the app doesn’t appear to fail to start; every other variant is honored if the OS supports it (Wayland will ignore position regardless — see sanitize’s docs).

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§label: String§x: i32§y: i32§width: u32§height: u32§placement: WindowPlacement

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impl PerWindowState

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pub fn sanitize( &self, min_size: (u32, u32), work_area: (u32, u32), ) -> PerWindowState

Validate this state against a (width, height) work area (typically the size of the largest available monitor’s usable region) and return a sanitized copy:

  • width / height are clamped to [min, work_area]. If the minimum is larger than the work area the work area wins — this should not happen with sensible mins (e.g. 320x240).
  • The position is checked: if the top-left point lies outside [0, work_area_w) x [0, work_area_h) and the window would not have at least 50 logical-pixel intersection with the work area, the position is recentered on the monitor so the window comes back on screen instead of spawning at coordinates from a missing monitor.
  • maximized and label are preserved.

Use this on app startup with (work_area_w, work_area_h) pulled from the OS (e.g. winit’s MonitorHandle::size() minus known taskbars). Without an OS hint, pass conservative fallbacks like (1920, 1080) — the result still improves on re-using stale coordinates from a monitor that’s no longer connected.

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impl Clone for PerWindowState

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fn clone(&self) -> PerWindowState

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for PerWindowState

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<'de> Deserialize<'de> for PerWindowState

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl PartialEq for PerWindowState

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fn eq(&self, other: &PerWindowState) -> bool

Tests for self and other values to be equal, and is used by ==.
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Serialize for PerWindowState

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl StructuralPartialEq for PerWindowState

Auto Trait Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.