Enum ExportError 

pub enum ExportError {
    Unsupported,
    TooLarge {
        width: u32,
        height: u32,
    },
    Invalid,
    Failed(String),
}

Why a canvas export could not answer (docs/canvas.md “Exporting”).

Variants

Unsupported

This toolkit has no path for the export (probe Cap::CanvasBitmap / Cap::CanvasPdf).

TooLarge

The bitmap would exceed EXPORT_MAX_SIDE or EXPORT_MAX_PIXELS; checked in day-core before the toolkit runs. The size is the one that was refused, in pixels.

Fields

width: u32

height: u32

Invalid

A zero, negative or non-finite size or scale, or a PDF with no pages.

Failed(String)

The platform refused (out of memory, a writer error); the text is the platform’s.

Trait Implementations

impl Clone for ExportError

fn clone(&self) -> ExportError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExportError

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

Formats the value using the given formatter.

impl Display for ExportError

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

Formats the value using the given formatter.

impl Error for ExportError

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

Returns 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 PartialEq for ExportError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ExportError