Struct kas::TkAction [−][src]
pub struct TkAction { /* fields omitted */ }
Expand description
Action required after processing
This type is returned by many widgets on modification to self and is tracked
internally by event::Manager
to determine which updates are needed to
the UI.
Two TkAction
values may be combined via bit-or (a | b
). Bit-or
assignments are supported by both TkAction
and event::Manager
.
Users receiving a value of this type from a widget update method should
generally call *mgr |= action;
during event handling. Prior to
starting the event loop (toolkit.run()
), these values can be ignored.
Implementations
The whole window requires redrawing
Note that event::Manager::redraw
can instead be used for more
selective redrawing.
Some widgets within a region moved
Used when a pop-up is closed or a region adjusted (e.g. scroll or switch tab) to update which widget is under the mouse cursor / touch events. Identifier is that of the parent widget/window encapsulating the region.
Implies window redraw.
Update theme memory
Window requires reconfiguring
Configuring widgets assigns WidgetId
identifiers and calls
crate::WidgetConfig::configure
.
Convert from underlying bit representation, unless that representation contains bits that do not correspond to a flag.
Convert from underlying bit representation, dropping any bits that do not correspond to flags.
Convert from underlying bit representation, preserving all bits (even those not corresponding to a defined flag).
Safety
The caller of the bitflags!
macro can chose to allow or
disallow extra bits for their bitflags type.
The caller of from_bits_unchecked()
has to ensure that
all bits correspond to a defined flag or that extra bits
are valid for this bitflags type.
Returns true
if there are flags common to both self
and other
.
Returns true
if all of the flags in other
are contained within self
.
Inserts or removes the specified flags depending on the passed value.
Returns the intersection between the flags in self
and
other
.
Specifically, the returned set contains only the flags which are
present in both self
and other
.
This is equivalent to using the &
operator (e.g.
ops::BitAnd
), as in flags & other
.
Returns the union of between the flags in self
and other
.
Specifically, the returned set contains all flags which are
present in either self
or other
, including any which are
present in both (see Self::symmetric_difference
if that
is undesirable).
This is equivalent to using the |
operator (e.g.
ops::BitOr
), as in flags | other
.
Returns the difference between the flags in self
and other
.
Specifically, the returned set contains all flags present in
self
, except for the ones present in other
.
It is also conceptually equivalent to the “bit-clear” operation:
flags & !other
(and this syntax is also supported).
This is equivalent to using the -
operator (e.g.
ops::Sub
), as in flags - other
.
Returns the symmetric difference between the flags
in self
and other
.
Specifically, the returned set contains the flags present which
are present in self
or other
, but that are not present in
both. Equivalently, it contains the flags present in exactly
one of the sets self
and other
.
This is equivalent to using the ^
operator (e.g.
ops::BitXor
), as in flags ^ other
.
Returns the complement of this set of flags.
Specifically, the returned set contains all the flags which are
not set in self
, but which are allowed for this type.
Alternatively, it can be thought of as the set difference
between Self::all()
and self
(e.g. Self::all() - self
)
This is equivalent to using the !
operator (e.g.
ops::Not
), as in !flags
.
Trait Implementations
Disables all flags disabled in the set.
Performs the |=
operation. Read more
Adds the set of flags.
Toggles the set of flags.
Extends a collection with the contents of an iterator. Read more
extend_one
)Extends a collection with exactly one element.
extend_one
)Reserves capacity in a collection for the given number of additional elements. Read more
This method returns an ordering between self
and other
values if one exists. Read more
This method tests less than (for self
and other
) and is used by the <
operator. Read more
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
Disables all flags enabled in the set.
Auto Trait Implementations
impl RefUnwindSafe for TkAction
impl UnwindSafe for TkAction
Blanket Implementations
Mutably borrows from an owned value. Read more
impl<T> CallHasher for T where
T: Hash,
impl<T> CallHasher for T where
T: Hash,
pub fn cast_trunc(self) -> T
pub fn cast_trunc(self) -> T
Cast to integer, truncating Read more
pub fn cast_nearest(self) -> T
pub fn cast_nearest(self) -> T
Cast to the nearest integer Read more
pub fn cast_floor(self) -> T
pub fn cast_floor(self) -> T
Cast the floor to an integer Read more
pub fn try_cast_trunc(self) -> Result<T, Error>
pub fn try_cast_trunc(self) -> Result<T, Error>
Try converting to integer with truncation Read more
pub fn try_cast_nearest(self) -> Result<T, Error>
pub fn try_cast_nearest(self) -> Result<T, Error>
Try converting to the nearest integer Read more
pub fn try_cast_floor(self) -> Result<T, Error>
pub fn try_cast_floor(self) -> Result<T, Error>
Try converting the floor to an integer Read more
pub fn try_cast_ceil(self) -> Result<T, Error>
pub fn try_cast_ceil(self) -> Result<T, Error>
Try convert the ceiling to an integer Read more
Compare self to key
and return true
if they are equal.
Checks that type has a default value.