Enum gtk::PolicyType
source · [−]#[non_exhaustive]
pub enum PolicyType {
Always,
Automatic,
Never,
External,
// some variants omitted
}
Expand description
Determines how the size should be computed to achieve the one of the visibility mode for the scrollbars.
Variants (Non-exhaustive)
This enum is marked as 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
sourceimpl Clone for PolicyType
impl Clone for PolicyType
sourcefn clone(&self) -> PolicyType
fn clone(&self) -> PolicyType
Returns a copy of the value. Read more
1.0.0 · sourceconst fn clone_from(&mut self, source: &Self)
const fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresourceimpl Debug for PolicyType
impl Debug for PolicyType
sourceimpl Display for PolicyType
impl Display for PolicyType
sourceimpl<'a> FromValue<'a> for PolicyType
impl<'a> FromValue<'a> for PolicyType
type Checker = GenericValueTypeChecker<PolicyType>
type Checker = GenericValueTypeChecker<PolicyType>
Value type checker.
sourceunsafe fn from_value(value: &'a Value) -> Self
unsafe fn from_value(value: &'a Value) -> Self
Get the contained value from a
Value
. Read moresourceimpl Hash for PolicyType
impl Hash for PolicyType
sourceimpl Ord for PolicyType
impl Ord for PolicyType
sourcefn cmp(&self, other: &PolicyType) -> Ordering
fn cmp(&self, other: &PolicyType) -> Ordering
1.21.0 · sourceconst fn max(self, other: Self) -> Self
const fn max(self, other: Self) -> Self
Compares and returns the maximum of two values. Read more
1.21.0 · sourceconst fn min(self, other: Self) -> Self
const fn min(self, other: Self) -> Self
Compares and returns the minimum of two values. Read more
1.50.0 · sourceconst fn clamp(self, min: Self, max: Self) -> Selfwhere
Self: PartialOrd<Self>,
const fn clamp(self, min: Self, max: Self) -> Selfwhere
Self: PartialOrd<Self>,
Restrict a value to a certain interval. Read more
sourceimpl PartialEq<PolicyType> for PolicyType
impl PartialEq<PolicyType> for PolicyType
sourcefn eq(&self, other: &PolicyType) -> bool
fn eq(&self, other: &PolicyType) -> bool
sourceimpl PartialOrd<PolicyType> for PolicyType
impl PartialOrd<PolicyType> for PolicyType
sourcefn partial_cmp(&self, other: &PolicyType) -> Option<Ordering>
fn partial_cmp(&self, other: &PolicyType) -> Option<Ordering>
1.0.0 · sourceconst fn le(&self, other: &Rhs) -> bool
const fn le(&self, other: &Rhs) -> bool
This method tests less than or equal to (for
self
and other
) and is used by the <=
operator. Read moresourceimpl StaticType for PolicyType
impl StaticType for PolicyType
sourcefn static_type() -> Type
fn static_type() -> Type
Returns the type identifier of
Self
.sourceimpl ToValue for PolicyType
impl ToValue for PolicyType
sourceimpl ValueType for PolicyType
impl ValueType for PolicyType
type Type = PolicyType
type Type = PolicyType
Type to get the
Type
from. Read moreimpl Copy for PolicyType
impl Eq for PolicyType
impl StructuralEq for PolicyType
impl StructuralPartialEq for PolicyType
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
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> StaticTypeExt for Twhere
T: StaticType,
impl<T> StaticTypeExt for Twhere
T: StaticType,
sourcefn ensure_type()
fn ensure_type()
Ensures that the type has been registered with the type system.
sourceimpl<T> ToClosureReturnValue for Twhere
T: ToValue,
impl<T> ToClosureReturnValue for Twhere
T: ToValue,
fn to_closure_return_value(&self) -> Option<Value>
sourceimpl<T> ToSendValue for Twhere
T: Send + ToValue + ?Sized,
impl<T> ToSendValue for Twhere
T: Send + ToValue + ?Sized,
sourcefn to_send_value(&self) -> SendValue
fn to_send_value(&self) -> SendValue
Returns a
SendValue
clone of self
.