Struct ImageComparison

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pub struct ImageComparison { /* private fields */ }

Expand description

The decoded two sides of an image change, plus a metadata summary line.

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impl ImageComparison

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pub fn from_blobs(blobs: &BlobPair) -> Option<Self>

Decode both sides of blobs. Returns None when neither side decodes to an image (so the caller falls back to the text diff).

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pub fn meta(&self) -> &str

The PNG 64x64 1.2KiB→1.4KiB-style summary shown above the image.

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pub fn render( &mut self, mode: CompareMode, slider: f32, box_w: u32, box_h: u32, ) -> &Canvas

The opaque canvas for mode at slider position slider (0..1), fitting within box_w × box_h. Returns a cached canvas when nothing that affects the pixels has changed since the last call, so repaints driven by unrelated UI activity don’t recompose the image (see [RenderCache]).

Auto Trait Implementations§

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impl UnwindSafe for ImageComparison

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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> Downcast for T
where T: Any,

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fn into_any(self: Box<T>) -> Box<dyn Any>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.

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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.

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fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.

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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.

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impl<T> DowncastSync for T
where T: Any + Send + Sync,

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fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Send + Sync>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait.

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