Enum exr::image::crop::CropResult[−][src]

#[must_use]
pub enum CropResult<Cropped, Old> {
    Cropped(Cropped),
    Empty {
        original: Old,
    },
}
Expand description

Cropping an image fails if the image is fully transparent. Use [or_crop_to_1x1_if_empty] or [or_none_if_empty] to obtain a normal image again.

Variants

Cropped(Cropped)

The image contained some pixels and has been cropped or left untouched

Empty

All pixels in the image would be discarded, removing the whole image

Show fields

Fields of Empty

original: Old

The fully discarded image which caused the cropping to fail

Implementations

impl<Cropped, Original> CropResult<Cropped, Original>[src]

pub fn or_none_if_empty(self) -> Option<Cropped>[src]

If the image was fully empty, return None, otherwise return Some(cropped_image).

pub fn or_crop_to_1x1_if_empty(self) -> Cropped where
    Original: Crop<Cropped = Cropped> + GetBounds, [src]

If the image was fully empty, crop to one single pixel of all the transparent pixels instead, leaving the layer intact while reducing memory usage.

Trait Implementations

impl<Cropped: Clone, Old: Clone> Clone for CropResult<Cropped, Old>[src]

fn clone(&self) -> CropResult<Cropped, Old>[src]

Returns a copy of the value. Read more

fn clone_from(&mut self, source: &Self)1.0.0[src]

Performs copy-assignment from source. Read more

impl<Cropped: Debug, Old: Debug> Debug for CropResult<Cropped, Old>[src]

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

Formats the value using the given formatter. Read more

impl<Cropped: PartialEq, Old: PartialEq> PartialEq<CropResult<Cropped, Old>> for CropResult<Cropped, Old>[src]

fn eq(&self, other: &CropResult<Cropped, Old>) -> bool[src]

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

fn ne(&self, other: &CropResult<Cropped, Old>) -> bool[src]

This method tests for !=.

impl<Cropped: Copy, Old: Copy> Copy for CropResult<Cropped, Old>[src]

impl<Cropped: Eq, Old: Eq> Eq for CropResult<Cropped, Old>[src]

impl<Cropped, Old> StructuralEq for CropResult<Cropped, Old>[src]

impl<Cropped, Old> StructuralPartialEq for CropResult<Cropped, Old>[src]

Auto Trait Implementations

impl<Cropped, Old> RefUnwindSafe for CropResult<Cropped, Old> where
    Cropped: RefUnwindSafe,
    Old: RefUnwindSafe, 

impl<Cropped, Old> Send for CropResult<Cropped, Old> where
    Cropped: Send,
    Old: Send, 

impl<Cropped, Old> Sync for CropResult<Cropped, Old> where
    Cropped: Sync,
    Old: Sync, 

impl<Cropped, Old> Unpin for CropResult<Cropped, Old> where
    Cropped: Unpin,
    Old: Unpin, 

impl<Cropped, Old> UnwindSafe for CropResult<Cropped, Old> where
    Cropped: UnwindSafe,
    Old: UnwindSafe, 

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized, [src]

pub fn type_id(&self) -> TypeId[src]

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
    T: ?Sized, [src]

pub fn borrow(&self) -> &T[src]

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src]

pub fn borrow_mut(&mut self) -> &mut T[src]

Mutably borrows from an owned value. Read more

impl<T> From<T> for T[src]

pub fn from(t: T) -> T[src]

Performs the conversion.

impl<T, U> Into<U> for T where
    U: From<T>, [src]

pub fn into(self) -> U[src]

Performs the conversion.

impl<T> ToOwned for T where
    T: Clone, [src]

type Owned = T

The resulting type after obtaining ownership.

pub fn to_owned(&self) -> T[src]

Creates owned data from borrowed data, usually by cloning. Read more

pub fn clone_into(&self, target: &mut T)[src]

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

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src]

type Error = Infallible

The type returned in the event of a conversion error.

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

Performs the conversion.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src]

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

The type returned in the event of a conversion error.

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

Performs the conversion.