Struct kas::Popup [−][src]
Expand description
A widget which escapes its parent’s rect
A pop-up is a special widget drawn either as a layer over the existing
window or in a new borderless window. It should be precisely positioned
next to it’s parent
’s rect
, in the specified direction
(or, if not
possible, in the opposite direction).
A pop-up is in some ways an ordinary child widget and in some ways not.
The pop-up widget should be a permanent child of its parent, but is not
visible until Manager::add_popup
is called.
A pop-up widget’s rect is not contained by its parent, therefore the parent
must not call any Layout
methods on the pop-up (whether or not it is
visible). The window is responsible for calling these methods.
Other methods on the pop-up, including event handlers, should be called
normally, with one exception: after calling an event handler on the pop-up,
the parent should invoke Manager::pop_action
and handle the action
itself, where possible (using Manager::close_window
to close it).
Remaining actions should be added back to the Manager
.
Fields
id: WidgetId
parent: WidgetId
direction: Direction
Trait Implementations
Auto Trait Implementations
impl RefUnwindSafe for Popup
impl UnwindSafe for Popup
Blanket Implementations
Mutably borrows from an owned value. Read more
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