Enum image::codecs::ico::decoder::DecoderError

enum DecoderError {
    NoEntries,
    IcoEntryTooManyPlanesOrHotspot,
    IcoEntryTooManyBitsPerPixelOrHotspot,
    PngShorterThanHeader,
    PngNotRgba,
    InvalidDataSize,
    ImageEntryDimensionMismatch {
        format: IcoEntryImageFormat,
        entry: (u16, u16),
        image: (u32, u32),
    },
}

Errors that can occur during decoding and parsing an ICO image or one of its enclosed images.

Variants

NoEntries

The ICO directory is empty

IcoEntryTooManyPlanesOrHotspot

The number of color planes (0 or 1), or the horizontal coordinate of the hotspot for CUR files too big.

IcoEntryTooManyBitsPerPixelOrHotspot

The bit depth (may be 0 meaning unspecified), or the vertical coordinate of the hotspot for CUR files too big.

PngShorterThanHeader

The entry is in PNG format and specified a length that is shorter than PNG header.

PngNotRgba

The enclosed PNG is not in RGBA, which is invalid: https://blogs.msdn.microsoft.com/oldnewthing/20101022-00/?p=12473/.

InvalidDataSize

The entry is in BMP format and specified a data size that is not correct for the image and optional mask data.

ImageEntryDimensionMismatch

The dimensions specified by the entry does not match the dimensions in the header of the enclosed image.

Fields

format: IcoEntryImageFormat

The mismatched subimage’s type

entry: (u16, u16)

The dimensions specified by the entry

image: (u32, u32)

The dimensions of the image itself

Trait Implementations

impl Clone for DecoderError

fn clone(&self) -> DecoderError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for DecoderError

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

Formats the value using the given formatter.

impl Display for DecoderError

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

Formats the value using the given formatter.

impl Error for DecoderError

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

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

fn description(&self) -> &str

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

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

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

fn provide<'a>(&'a self, request: &mut Request<'a>)

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

Provides type based access to context intended for error reports.

impl From<DecoderError> for ImageError

fn from(e: DecoderError) -> ImageError

Converts to this type from the input type.

impl Hash for DecoderError

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for DecoderError

fn cmp(&self, other: &DecoderError) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for DecoderError

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for DecoderError

fn partial_cmp(&self, other: &DecoderError) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for DecoderError

impl Eq for DecoderError

impl StructuralPartialEq for DecoderError