Struct kas::widgets::ScrollRegion
source · pub struct ScrollRegion<W>where
W: Widget,{ /* private fields */ }
Expand description
A scrollable region
This region supports scrolling via mouse wheel and click/touch drag.
The ideal size of a ScrollRegion
is the ideal size of its content:
that is, all content may be shown at ideal size without scrolling.
The minimum size of a ScrollRegion
is somewhat arbitrary (currently,
fixed at the height of three lines of standard text). The inner size
(content size) is max(content_min_size, outer_size - content_margin)
.
Scroll bars are not included; use ScrollBarRegion
if you want those.
Implementations§
Trait Implementations§
source§impl<W> Clone for ScrollRegion<W>where
W: Clone + Widget,
impl<W> Clone for ScrollRegion<W>where W: Clone + Widget,
source§fn clone(&self) -> ScrollRegion<W>
fn clone(&self) -> ScrollRegion<W>
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresource§impl<W> Default for ScrollRegion<W>where
W: Default + Widget,
impl<W> Default for ScrollRegion<W>where W: Default + Widget,
source§fn default() -> ScrollRegion<W>
fn default() -> ScrollRegion<W>
Returns the “default value” for a type. Read more
source§impl<W> Deref for ScrollRegion<W>where
W: Widget,
impl<W> Deref for ScrollRegion<W>where W: Widget,
source§impl<W> DerefMut for ScrollRegion<W>where
W: Widget,
impl<W> DerefMut for ScrollRegion<W>where W: Widget,
source§impl<W> Layout for ScrollRegion<W>where
W: Widget,
impl<W> Layout for ScrollRegion<W>where W: Widget,
source§impl<W> Scrollable for ScrollRegion<W>where
W: Widget,
impl<W> Scrollable for ScrollRegion<W>where W: Widget,
source§impl<W> SetAccel for ScrollRegion<W>where
W: Widget + SetAccel,
impl<W> SetAccel for ScrollRegion<W>where W: Widget + SetAccel,
source§fn set_accel_string(&mut self, accel: AccelString) -> Action
fn set_accel_string(&mut self, accel: AccelString) -> Action
Set accel string
source§impl<W> Widget for ScrollRegion<W>where
W: Widget,
impl<W> Widget for ScrollRegion<W>where W: Widget,
source§fn translation(&self) -> Offset
fn translation(&self) -> Offset
Get translation of children relative to this widget Read more
source§fn handle_scroll(&mut self, mgr: &mut EventMgr<'_>, scroll: Scroll)
fn handle_scroll(&mut self, mgr: &mut EventMgr<'_>, scroll: Scroll)
Handler for scrolling Read more
Is this widget navigable via Tab key? Read more
Navigation in spatial order Read more
source§fn steal_event(
&mut self,
mgr: &mut EventMgr<'_>,
id: &WidgetId,
event: &Event
) -> Response
fn steal_event( &mut self, mgr: &mut EventMgr<'_>, id: &WidgetId, event: &Event ) -> Response
Potentially steal an event before it reaches a child Read more
source§fn handle_unused(&mut self, mgr: &mut EventMgr<'_>, event: Event) -> Response
fn handle_unused(&mut self, mgr: &mut EventMgr<'_>, event: Event) -> Response
Handle an event sent to child
index
but left unhandled Read moresource§fn handle_message(&mut self, mgr: &mut EventMgr<'_>)
fn handle_message(&mut self, mgr: &mut EventMgr<'_>)
Handler for messages from children/descendants Read more
source§impl<W> WidgetChildren for ScrollRegion<W>where
W: Widget,
impl<W> WidgetChildren for ScrollRegion<W>where W: Widget,
source§fn num_children(&self) -> usize
fn num_children(&self) -> usize
Get the number of child widgets Read more
source§fn get_child(&self, _index: usize) -> Option<&dyn Widget>
fn get_child(&self, _index: usize) -> Option<&dyn Widget>
Get a reference to a child widget by index, or
None
if the index is
out of bounds. Read moresource§fn get_child_mut(&mut self, _index: usize) -> Option<&mut dyn Widget>
fn get_child_mut(&mut self, _index: usize) -> Option<&mut dyn Widget>
Mutable variant of get Read more
source§impl<W> WidgetCore for ScrollRegion<W>where
W: Widget,
impl<W> WidgetCore for ScrollRegion<W>where W: Widget,
source§fn widget_name(&self) -> &'static str
fn widget_name(&self) -> &'static str
Get the name of the widget struct
source§fn as_widget_mut(&mut self) -> &mut dyn Widget
fn as_widget_mut(&mut self) -> &mut dyn Widget
Erase type
Auto Trait Implementations§
impl<W> RefUnwindSafe for ScrollRegion<W>where W: RefUnwindSafe,
impl<W> !Send for ScrollRegion<W>
impl<W> !Sync for ScrollRegion<W>
impl<W> Unpin for ScrollRegion<W>where W: Unpin,
impl<W> UnwindSafe for ScrollRegion<W>where W: UnwindSafe,
Blanket Implementations§
source§impl<W> AdaptWidget for Wwhere
W: Widget + ?Sized,
impl<W> AdaptWidget for Wwhere W: Widget + ?Sized,
source§fn map_msg<M, N, F>(self, f: F) -> MapMessage<Self, M, N, F>where
M: Debug,
N: Debug,
Self: Sized,
F: FnMut(M) -> N,
fn map_msg<M, N, F>(self, f: F) -> MapMessage<Self, M, N, F>where M: Debug, N: Debug, Self: Sized, F: FnMut(M) -> N,
Construct a wrapper widget which maps a message of the given type
source§fn with_reserve<R>(self, r: R) -> Reserve<Self, R>where
R: FnMut(SizeMgr<'_>, AxisInfo) -> SizeRules,
Self: Sized,
fn with_reserve<R>(self, r: R) -> Reserve<Self, R>where R: FnMut(SizeMgr<'_>, AxisInfo) -> SizeRules, Self: Sized,
Construct a wrapper widget which reserves extra space Read more
source§fn with_min_size_px(self, w: i32, h: i32) -> Reserve<Self, WithMinSizePx>where
Self: Sized,
fn with_min_size_px(self, w: i32, h: i32) -> Reserve<Self, WithMinSizePx>where Self: Sized,
Construct a wrapper, setting minimum size in pixels Read more
source§fn with_min_size_em(self, w: f32, h: f32) -> Reserve<Self, WithMinSizeEm>where
Self: Sized,
fn with_min_size_em(self, w: f32, h: f32) -> Reserve<Self, WithMinSizeEm>where Self: Sized,
Construct a wrapper, setting minimum size in Em Read more
source§fn with_label<D, T>(self, direction: D, label: T) -> WithLabel<Self, D>where
D: Directional,
T: Into<AccelString>,
Self: Sized,
fn with_label<D, T>(self, direction: D, label: T) -> WithLabel<Self, D>where D: Directional, T: Into<AccelString>, Self: Sized,
Construct a wrapper widget adding a label
§impl<S, T> CastApprox<T> for Swhere
T: ConvApprox<S>,
impl<S, T> CastApprox<T> for Swhere T: ConvApprox<S>,
§fn try_cast_approx(self) -> Result<T, Error>
fn try_cast_approx(self) -> Result<T, Error>
§fn cast_approx(self) -> T
fn cast_approx(self) -> T
§impl<S, T> CastFloat<T> for Swhere
T: ConvFloat<S>,
impl<S, T> CastFloat<T> for Swhere T: ConvFloat<S>,
§fn cast_trunc(self) -> T
fn cast_trunc(self) -> T
Cast to integer, truncating Read more
§fn cast_nearest(self) -> T
fn cast_nearest(self) -> T
Cast to the nearest integer Read more
§fn cast_floor(self) -> T
fn cast_floor(self) -> T
Cast the floor to an integer Read more
§fn try_cast_trunc(self) -> Result<T, Error>
fn try_cast_trunc(self) -> Result<T, Error>
Try converting to integer with truncation Read more
§fn try_cast_nearest(self) -> Result<T, Error>
fn try_cast_nearest(self) -> Result<T, Error>
Try converting to the nearest integer Read more
§fn try_cast_floor(self) -> Result<T, Error>
fn try_cast_floor(self) -> Result<T, Error>
Try converting the floor to an integer Read more
§fn try_cast_ceil(self) -> Result<T, Error>
fn try_cast_ceil(self) -> Result<T, Error>
Try convert the ceiling to an integer Read more
source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
§impl<T> NoneValue for Twhere
T: Default,
impl<T> NoneValue for Twhere T: Default,
type NoneType = T
§fn null_value() -> T
fn null_value() -> T
The none-equivalent value.
§impl<T> Pointable for T
impl<T> Pointable for T
source§impl<R, P> ReadPrimitive<R> for Pwhere
R: Read + ReadEndian<P>,
P: Default,
impl<R, P> ReadPrimitive<R> for Pwhere R: Read + ReadEndian<P>, P: Default,
source§fn read_from_little_endian(read: &mut R) -> Result<Self, Error>
fn read_from_little_endian(read: &mut R) -> Result<Self, Error>
Read this value from the supplied reader. Same as
ReadEndian::read_from_little_endian()
.source§impl<W> WidgetExt for Wwhere
W: Widget + ?Sized,
impl<W> WidgetExt for Wwhere W: Widget + ?Sized,
source§fn eq_id<T>(&self, rhs: T) -> boolwhere
WidgetId: PartialEq<T>,
fn eq_id<T>(&self, rhs: T) -> boolwhere WidgetId: PartialEq<T>,
Test widget identifier for equality Read more
source§fn identify(&self) -> IdentifyWidget
fn identify(&self) -> IdentifyWidget
Display as “StructName#WidgetId”
source§fn is_ancestor_of(&self, id: &WidgetId) -> bool
fn is_ancestor_of(&self, id: &WidgetId) -> bool
Check whether
id
is self or a descendant Read moresource§fn is_strict_ancestor_of(&self, id: &WidgetId) -> bool
fn is_strict_ancestor_of(&self, id: &WidgetId) -> bool
Check whether
id
is not self and is a descendant Read more