#[repr(transparent)]pub struct CenterBox { /* private fields */ }
Expand description
CenterBox
arranges three children in a row, keeping the middle child
centered as well as possible.
To add children to CenterBox
, use set_start_widget()
,
set_center_widget()
and
set_end_widget()
.
The sizing and positioning of children can be influenced with the align and expand properties of the children.
GtkCenterBox as GtkBuildable
The CenterBox
implementation of the Buildable
interface
supports placing children in the 3 positions by specifying “start”, “center”
or “end” as the “type” attribute of a <child>
element.
CSS nodes
CenterBox
uses a single CSS node with the name “box”,
The first child of the CenterBox
will be allocated depending on the
text direction, i.e. in left-to-right layouts it will be allocated on the
left and in right-to-left layouts on the right.
In vertical orientation, the nodes of the children are arranged from top to bottom.
Accessibility
CenterBox
uses the AccessibleRole::Group
role.
Properties
baseline-position
The position of the baseline aligned widget if extra space is available.
Readable | Writeable
center-widget
The widget that is placed at the center position.
Readable | Writeable
end-widget
The widget that is placed at the end position.
In vertical orientation, the end position is at the bottom. In horizontal orientation, the end position is at the trailing edge wrt. to the text direction.
Readable | Writeable
start-widget
The widget that is placed at the start position.
In vertical orientation, the start position is at the top. In horizontal orientation, the start position is at the leading edge wrt. to the text direction.
Readable | Writeable
Widget
can-focus
Whether the widget or any of its descendents can accept the input focus.
This property is meant to be set by widget implementations, typically in their instance init function.
Readable | Writeable
can-target
Whether the widget can receive pointer events.
Readable | Writeable
css-classes
A list of css classes applied to this widget.
Readable | Writeable
css-name
The name of this widget in the CSS tree.
This property is meant to be set by widget implementations, typically in their instance init function.
Readable | Writeable | Construct Only
cursor
The cursor used by @widget.
Readable | Writeable
focus-on-click
Whether the widget should grab focus when it is clicked with the mouse.
This property is only relevant for widgets that can take focus.
Readable | Writeable
focusable
Whether this widget itself will accept the input focus.
Readable | Writeable
halign
How to distribute horizontal space if widget gets extra space.
Readable | Writeable
has-default
Whether the widget is the default widget.
Readable
has-focus
Whether the widget has the input focus.
Readable
has-tooltip
Enables or disables the emission of the ::query-tooltip signal on @widget.
A value of true
indicates that @widget can have a tooltip, in this case
the widget will be queried using query-tooltip
to
determine whether it will provide a tooltip or not.
Readable | Writeable
height-request
Override for height request of the widget.
If this is -1, the natural request will be used.
Readable | Writeable
hexpand
Whether to expand horizontally.
Readable | Writeable
hexpand-set
Whether to use the hexpand
property.
Readable | Writeable
layout-manager
The LayoutManager
instance to use to compute the preferred size
of the widget, and allocate its children.
This property is meant to be set by widget implementations, typically in their instance init function.
Readable | Writeable
margin-bottom
Margin on bottom side of widget.
This property adds margin outside of the widget’s normal size
request, the margin will be added in addition to the size from
WidgetExt::set_size_request()
for example.
Readable | Writeable
margin-end
Margin on end of widget, horizontally.
This property supports left-to-right and right-to-left text directions.
This property adds margin outside of the widget’s normal size
request, the margin will be added in addition to the size from
WidgetExt::set_size_request()
for example.
Readable | Writeable
margin-start
Margin on start of widget, horizontally.
This property supports left-to-right and right-to-left text directions.
This property adds margin outside of the widget’s normal size
request, the margin will be added in addition to the size from
WidgetExt::set_size_request()
for example.
Readable | Writeable
margin-top
Margin on top side of widget.
This property adds margin outside of the widget’s normal size
request, the margin will be added in addition to the size from
WidgetExt::set_size_request()
for example.
Readable | Writeable
name
The name of the widget.
Readable | Writeable
opacity
The requested opacity of the widget.
Readable | Writeable
overflow
How content outside the widget’s content area is treated.
This property is meant to be set by widget implementations, typically in their instance init function.
Readable | Writeable
parent
The parent widget of this widget.
Readable
receives-default
Whether the widget will receive the default action when it is focused.
Readable | Writeable
root
The Root
widget of the widget tree containing this widget.
This will be None
if the widget is not contained in a root widget.
Readable
scale-factor
The scale factor of the widget.
Readable
sensitive
Whether the widget responds to input.
Readable | Writeable
tooltip-markup
Sets the text of tooltip to be the given string, which is marked up with Pango markup.
Also see Tooltip::set_markup()
.
This is a convenience property which will take care of getting the
tooltip shown if the given string is not None
:
has-tooltip
will automatically be set to true
and there will be taken care of query-tooltip
in
the default signal handler.
Note that if both tooltip-text
and
tooltip-markup
are set, the last one wins.
Readable | Writeable
tooltip-text
Sets the text of tooltip to be the given string.
Also see Tooltip::set_text()
.
This is a convenience property which will take care of getting the
tooltip shown if the given string is not None
:
has-tooltip
will automatically be set to true
and there will be taken care of query-tooltip
in
the default signal handler.
Note that if both tooltip-text
and
tooltip-markup
are set, the last one wins.
Readable | Writeable
valign
How to distribute vertical space if widget gets extra space.
Readable | Writeable
vexpand
Whether to expand vertically.
Readable | Writeable
vexpand-set
Whether to use the vexpand
property.
Readable | Writeable
visible
Whether the widget is visible.
Readable | Writeable
width-request
Override for width request of the widget.
If this is -1, the natural request will be used.
Readable | Writeable
Accessible
accessible-role
The accessible role of the given Accessible
implementation.
The accessible role cannot be changed once set.
Readable | Writeable
Implements
WidgetExt
, glib::ObjectExt
, AccessibleExt
, BuildableExt
, ConstraintTargetExt
, OrientableExt
, WidgetExtManual
, AccessibleExtManual
Implementations§
source§impl CenterBox
impl CenterBox
sourcepub fn builder() -> CenterBoxBuilder
pub fn builder() -> CenterBoxBuilder
Creates a new builder-pattern struct instance to construct CenterBox
objects.
This method returns an instance of CenterBoxBuilder
which can be used to create CenterBox
objects.
sourcepub fn baseline_position(&self) -> BaselinePosition
pub fn baseline_position(&self) -> BaselinePosition
sourcepub fn center_widget(&self) -> Option<Widget>
pub fn center_widget(&self) -> Option<Widget>
sourcepub fn end_widget(&self) -> Option<Widget>
pub fn end_widget(&self) -> Option<Widget>
sourcepub fn start_widget(&self) -> Option<Widget>
pub fn start_widget(&self) -> Option<Widget>
sourcepub fn set_baseline_position(&self, position: BaselinePosition)
pub fn set_baseline_position(&self, position: BaselinePosition)
Sets the baseline position of a center box.
This affects only horizontal boxes with at least one baseline aligned child. If there is more vertical space available than requested, and the baseline is not allocated by the parent then @position is used to allocate the baseline wrt. the extra space available.
position
sourcepub fn set_center_widget(&self, child: Option<&impl IsA<Widget>>)
pub fn set_center_widget(&self, child: Option<&impl IsA<Widget>>)
sourcepub fn set_end_widget(&self, child: Option<&impl IsA<Widget>>)
pub fn set_end_widget(&self, child: Option<&impl IsA<Widget>>)
sourcepub fn set_start_widget(&self, child: Option<&impl IsA<Widget>>)
pub fn set_start_widget(&self, child: Option<&impl IsA<Widget>>)
pub fn connect_baseline_position_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId
pub fn connect_center_widget_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId
v4_10
only.pub fn connect_end_widget_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId
v4_10
only.pub fn connect_start_widget_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId
v4_10
only.Trait Implementations§
source§impl HasParamSpec for CenterBox
impl HasParamSpec for CenterBox
source§impl Ord for CenterBox
impl Ord for CenterBox
source§impl<OT: ObjectType> PartialEq<OT> for CenterBox
impl<OT: ObjectType> PartialEq<OT> for CenterBox
source§impl<OT: ObjectType> PartialOrd<OT> for CenterBox
impl<OT: ObjectType> PartialOrd<OT> for CenterBox
1.0.0 · source§fn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
self
and other
) and is used by the <=
operator. Read moresource§impl StaticType for CenterBox
impl StaticType for CenterBox
source§fn static_type() -> Type
fn static_type() -> Type
Self
.impl Eq for CenterBox
impl IsA<Accessible> for CenterBox
impl IsA<Buildable> for CenterBox
impl IsA<ConstraintTarget> for CenterBox
impl IsA<Orientable> for CenterBox
impl IsA<Widget> for CenterBox
Auto Trait Implementations§
impl RefUnwindSafe for CenterBox
impl !Send for CenterBox
impl !Sync for CenterBox
impl Unpin for CenterBox
impl UnwindSafe for CenterBox
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O: IsA<Accessible>,
impl<O> AccessibleExtManual for Owhere O: IsA<Accessible>,
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fn update_property(&self, properties: &[Property<'_>])
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fn update_relation(&self, relations: &[Relation<'_>])
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fn update_state(&self, states: &[State])
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closure: RustClosure
) -> SignalHandlerId
fn connect_closure_id( &self, signal_id: SignalId, details: Option<Quark>, after: bool, closure: RustClosure ) -> SignalHandlerId
signal_id
on this object. Read moresource§fn watch_closure(&self, closure: &impl AsRef<Closure>)
fn watch_closure(&self, closure: &impl AsRef<Closure>)
closure
to the lifetime of the object. When
the object’s reference count drops to zero, the closure will be
invalidated. An invalidated closure will ignore any calls to
invoke_with_values
, or
invoke
when using Rust closures.source§fn emit<R>(&self, signal_id: SignalId, args: &[&dyn ToValue]) -> Rwhere
R: TryFromClosureReturnValue,
fn emit<R>(&self, signal_id: SignalId, args: &[&dyn ToValue]) -> Rwhere R: TryFromClosureReturnValue,
source§fn emit_with_values(&self, signal_id: SignalId, args: &[Value]) -> Option<Value>
fn emit_with_values(&self, signal_id: SignalId, args: &[Value]) -> Option<Value>
Self::emit
but takes Value
for the arguments.source§fn emit_by_name<R>(&self, signal_name: &str, args: &[&dyn ToValue]) -> Rwhere
R: TryFromClosureReturnValue,
fn emit_by_name<R>(&self, signal_name: &str, args: &[&dyn ToValue]) -> Rwhere R: TryFromClosureReturnValue,
source§fn emit_by_name_with_values(
&self,
signal_name: &str,
args: &[Value]
) -> Option<Value>
fn emit_by_name_with_values( &self, signal_name: &str, args: &[Value] ) -> Option<Value>
source§fn emit_by_name_with_details<R>(
&self,
signal_name: &str,
details: Quark,
args: &[&dyn ToValue]
) -> Rwhere
R: TryFromClosureReturnValue,
fn emit_by_name_with_details<R>( &self, signal_name: &str, details: Quark, args: &[&dyn ToValue] ) -> Rwhere R: TryFromClosureReturnValue,
source§fn emit_by_name_with_details_and_values(
&self,
signal_name: &str,
details: Quark,
args: &[Value]
) -> Option<Value>
fn emit_by_name_with_details_and_values( &self, signal_name: &str, details: Quark, args: &[Value] ) -> Option<Value>
source§fn emit_with_details<R>(
&self,
signal_id: SignalId,
details: Quark,
args: &[&dyn ToValue]
) -> Rwhere
R: TryFromClosureReturnValue,
fn emit_with_details<R>( &self, signal_id: SignalId, details: Quark, args: &[&dyn ToValue] ) -> Rwhere R: TryFromClosureReturnValue,
source§fn emit_with_details_and_values(
&self,
signal_id: SignalId,
details: Quark,
args: &[Value]
) -> Option<Value>
fn emit_with_details_and_values( &self, signal_id: SignalId, details: Quark, args: &[Value] ) -> Option<Value>
source§fn disconnect(&self, handler_id: SignalHandlerId)
fn disconnect(&self, handler_id: SignalHandlerId)
source§fn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere
F: Fn(&T, &ParamSpec) + Send + Sync + 'static,
fn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere F: Fn(&T, &ParamSpec) + Send + Sync + 'static,
notify
signal of the object. Read moresource§fn connect_notify_local<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere
F: Fn(&T, &ParamSpec) + 'static,
fn connect_notify_local<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere F: Fn(&T, &ParamSpec) + 'static,
notify
signal of the object. Read moresource§unsafe fn connect_notify_unsafe<F>(
&self,
name: Option<&str>,
f: F
) -> SignalHandlerIdwhere
F: Fn(&T, &ParamSpec),
unsafe fn connect_notify_unsafe<F>( &self, name: Option<&str>, f: F ) -> SignalHandlerIdwhere F: Fn(&T, &ParamSpec),
notify
signal of the object. Read more