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Sizing

Enum Sizing 

Source
pub enum Sizing {
    Shrink,
    Fit,
    Scale(f64),
}
Expand description

Image sizing.

The default is Fit.

Variants§

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Shrink

Shrinks the image if it’s too big.

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Fit

Shrinks the image if it’s too big or expands it if it’s too small.

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Scale(f64)

Scale.

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impl Sizing

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pub fn original() -> Self

Keep the original size: Scale(1.).

Examples found in repository?
examples/scrollable.rs (line 24)
12fn main() {
13    let mut cursive = default();
14
15    cursive.add_layer(
16        Panel::new(
17            ImageView::default()
18                .with_image(
19                    // Note that RGBA is supported, too, if you need transparency
20                    Image::new_stream_from_jpeg_file(FILE, ImageFormat::RGB).expect("new_stream_from_jpeg_file"),
21                    // If you prefer to keep the image data in memory:
22                    // Image::new_owned_from_jpeg_file(FILE, ImageFormat::RGB, true).expect("new_owned_from_jpeg_file"),
23                )
24                .with_sizing(Sizing::original())
25                .scrollable()
26                .scroll_x(true),
27        )
28        .fixed_size((50, 20)),
29    );
30
31    cursive.add_global_callback('q', |cursive| cursive.quit());
32
33    cursive.run();
34}
More examples
Hide additional examples
examples/pdf.rs (line 23)
10fn main() {
11    let mut cursive = default();
12
13    // The constructor returns a vector of images, one for each page in the PDF
14    // PDF pages can be either PNG or RGBA (PNG is usually more efficient)
15    // Note that we can apply scaling during rendering
16    let images = Image::new_owned_from_pdf_file(FILE, ImageFormat::PNG, 1.5, false).expect("new_owned_from_pdf_file");
17
18    cursive.set_user_data(Pages::new(images));
19
20    cursive.add_layer(
21        Dialog::around(
22            Panel::new(
23                ImageView::default().with_sizing(Sizing::original()).with_name(NAME).scrollable().scroll_x(true),
24            )
25            .fixed_size((50, 30)),
26        )
27        .button("Previous", |cursive| flip_page(cursive, -1))
28        .button("Next", |cursive| flip_page(cursive, 1)),
29    );
30
31    select_page(&mut cursive, 0);
32
33    cursive.add_global_callback('q', |cursive| cursive.quit());
34
35    cursive.run();
36}

Trait Implementations§

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impl Clone for Sizing

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fn clone(&self) -> Sizing

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Copy for Sizing

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impl Debug for Sizing

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

Formats the value using the given formatter. Read more
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impl Default for Sizing

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fn default() -> Sizing

Returns the “default value” for a type. Read more
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impl PartialEq for Sizing

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

Tests for self and other values to be equal, and is used by ==.
1.0.0 (const: unstable) · Source§

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl StructuralPartialEq for Sizing

Auto Trait Implementations§

Blanket Implementations§

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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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> ErasedDestructor for T
where T: 'static,

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

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

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impl<T, S> SimdFrom<T, S> for T
where S: Simd,

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fn simd_from(value: T, _simd: S) -> T

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impl<F, T, S> SimdInto<T, S> for F
where T: SimdFrom<F, S>, S: Simd,

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fn simd_into(self, simd: S) -> T

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> With for T

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fn wrap_with<U, F>(self, f: F) -> U
where F: FnOnce(Self) -> U,

Calls the given closure and return the result. Read more
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fn with<F>(self, f: F) -> Self
where F: FnOnce(&mut Self),

Calls the given closure on self.
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fn try_with<E, F>(self, f: F) -> Result<Self, E>
where F: FnOnce(&mut Self) -> Result<(), E>,

Calls the given closure on self.
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fn with_if<F>(self, condition: bool, f: F) -> Self
where F: FnOnce(&mut Self),

Calls the given closure if condition == true.