Struct epaint::TextureAtlas

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pub struct TextureAtlas { /* private fields */ }
Expand description

Contains font data in an atlas, where each character occupied a small rectangle.

More characters can be added, possibly expanding the texture.

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impl TextureAtlas

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pub fn new(size: [usize; 2]) -> Self

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pub fn size(&self) -> [usize; 2]

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pub fn prepared_discs(&self) -> Vec<PreparedDisc>

Returns the locations and sizes of pre-rasterized discs (filled circles) in this atlas.

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pub fn fill_ratio(&self) -> f32

When this get high, it might be time to clear and start over!

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pub fn texture_options() -> TextureOptions

The texture options suitable for a font texture

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pub fn image(&self) -> &FontImage

The full font atlas image.

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pub fn take_delta(&mut self) -> Option<ImageDelta>

Call to get the change to the image since last call.

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pub fn allocate( &mut self, (w, h): (usize, usize) ) -> ((usize, usize), &mut FontImage)

Returns the coordinates of where the rect ended up, and invalidates the region.

Trait Implementations§

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impl Clone for TextureAtlas

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fn clone(&self) -> TextureAtlas

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

Auto Trait Implementations§

Blanket 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> 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.