Enum titanium::desktop::gui::libdruid::piet::image_crate::error::ImageError

pub enum ImageError {
    Decoding(DecodingError),
    Encoding(EncodingError),
    Parameter(ParameterError),
    Limits(LimitError),
    Unsupported(UnsupportedError),
    IoError(Error),
}

Expand description

The generic error type for image operations.

This high level enum allows, by variant matching, a rough separation of concerns between underlying IO, the caller, format specifications, and the image implementation.

Variants§

Decoding(DecodingError)

An error was encountered while decoding.

This means that the input data did not conform to the specification of some image format, or that no format could be determined, or that it did not match format specific requirements set by the caller.

Encoding(EncodingError)

An error was encountered while encoding.

The input image can not be encoded with the chosen format, for example because the specification has no representation for its color space or because a necessary conversion is ambiguous. In some cases it might also happen that the dimensions can not be used with the format.

Parameter(ParameterError)

An error was encountered in input arguments.

This is a catch-all case for strictly internal operations such as scaling, conversions, etc. that involve no external format specifications.

Limits(LimitError)

Completing the operation would have required more resources than allowed.

Errors of this type are limits set by the user or environment, not inherent in a specific format or operation that was executed.

Unsupported(UnsupportedError)

An operation can not be completed by the chosen abstraction.

This means that it might be possible for the operation to succeed in general but

it requires a disabled feature,
the implementation does not yet exist, or
no abstraction for a lower level could be found.

IoError(Error)

An error occurred while interacting with the environment.

Trait Implementations§

impl Debug for ImageError

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

Formats the value using the given formatter. Read more

impl Display for ImageError

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

Formats the value using the given formatter. Read more

impl Error for ImageError

fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any. Read more

1.0.0 · source§

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

1.0.0 · source§

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, demand: &mut Demand<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type based access to context intended for error reports. Read more

impl From<DecoderError> for ImageError

fn from(e: DecoderError) -> ImageError

Converts to this type from the input type.

impl From<DecoderError> for ImageError

fn from(e: DecoderError) -> ImageError

Converts to this type from the input type.

impl From<DecoderError> for ImageError

fn from(e: DecoderError) -> ImageError

Converts to this type from the input type.

impl From<DecoderError> for ImageError

fn from(e: DecoderError) -> ImageError

Converts to this type from the input type.

impl From<DecoderError> for ImageError

fn from(e: DecoderError) -> ImageError

Converts to this type from the input type.

impl From<DecoderError> for ImageError

fn from(e: DecoderError) -> ImageError

Converts to this type from the input type.

impl From<DecoderError> for ImageError

fn from(e: DecoderError) -> ImageError

Converts to this type from the input type.

impl From<DecoderError> for ImageError

Note: should pnm be extracted into a separate crate, this will need to be hidden until that crate hits version 1.0.

fn from(e: DecoderError) -> ImageError

Converts to this type from the input type.

impl From<DecoderError> for ImageError

fn from(e: DecoderError) -> ImageError

Converts to this type from the input type.

impl From<EncoderError> for ImageError

fn from(e: EncoderError) -> ImageError

Converts to this type from the input type.

impl From<Error> for ImageError

fn from(error: Error) -> ImageError

Converts to this type from the input type.

impl From<Error> for ImageError

fn from(err: Error) -> ImageError

Converts to this type from the input type.

Auto Trait Implementations§

impl !RefUnwindSafe for ImageError

impl Send for ImageError

impl Sync for ImageError

impl Unpin for ImageError

impl !UnwindSafe for ImageError

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for Twhere T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for Twhere T: ?Sized,

const: unstable · source§

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

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self> ⓘ

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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

const: unstable · source§

fn into(self) -> U

Calls U::from(self).

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

impl<T> Pointable for T

const ALIGN: usize = mem::align_of::<T>()

The alignment of pointer.

type Init = T

The type for initializers.

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

impl<E> Provider for Ewhere E: Error + ?Sized,

fn provide<'a>(&'a self, demand: &mut Demand<'a>)

🔬This is a nightly-only experimental API. (provide_any)

Data providers should implement this method to provide all values they are able to provide by using demand. Read more

impl<T> RoundFrom<T> for T

fn round_from(x: T) -> T

Performs the conversion.

impl<T, U> RoundInto<U> for Twhere U: RoundFrom<T>,

fn round_into(self) -> U

Performs the conversion.

impl<T> Same<T> for T

type Output = T

Should always be Self

impl<T> ToString for Twhere T: Display + ?Sized,

default fn to_string(&self) -> String

Converts the given value to a String. Read more

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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

The type returned in the event of a conversion error.

const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

fn vzip(self) -> V

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘwhere S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more

fn with_current_subscriber(self) -> WithDispatch<Self> ⓘ

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more