[][src]Enum gtk::PolicyType

#[non_exhaustive]pub enum PolicyType {
    Always,
    Automatic,
    Never,
    External,
    // some variants omitted
}

Determines how the size should be computed to achieve the one of the visibility mode for the scrollbars.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.
Always

The scrollbar is always visible. The view size is independent of the content.

Automatic

The scrollbar will appear and disappear as necessary. For example, when all of a TreeView can not be seen.

Never

The scrollbar should never appear. In this mode the content determines the size.

External

Don't show a scrollbar, but don't force the size to follow the content. This can be used e.g. to make multiple scrolled windows share a scrollbar. Since: 3.16

Trait Implementations

impl Clone for PolicyType[src]

impl Copy for PolicyType[src]

impl Debug for PolicyType[src]

impl Display for PolicyType[src]

impl Eq for PolicyType[src]

impl<'a> FromValue<'a> for PolicyType[src]

impl<'a> FromValueOptional<'a> for PolicyType[src]

impl Hash for PolicyType[src]

impl Ord for PolicyType[src]

impl PartialEq<PolicyType> for PolicyType[src]

impl PartialOrd<PolicyType> for PolicyType[src]

impl SetValue for PolicyType[src]

impl StaticType for PolicyType[src]

impl StructuralEq for PolicyType[src]

impl StructuralPartialEq for PolicyType[src]

Auto Trait Implementations

impl RefUnwindSafe for PolicyType

impl Send for PolicyType

impl Sync for PolicyType

impl Unpin for PolicyType

impl UnwindSafe for PolicyType

Blanket Implementations

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

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

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

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

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

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

type Owned = T

The resulting type after obtaining ownership.

impl<T> ToSendValue for T where
    T: ToValue + SetValue + Send + ?Sized

impl<T> ToString for T where
    T: Display + ?Sized
[src]

impl<T> ToValue for T where
    T: SetValue + ?Sized

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.

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.