Struct gtk4::ScaleButton
source · #[repr(transparent)]pub struct ScaleButton { /* private fields */ }
Expand description
ScaleButton
provides a button which pops up a scale widget.
This kind of widget is commonly used for volume controls in multimedia
applications, and GTK provides a VolumeButton
subclass that
is tailored for this use case.
CSS nodes
ScaleButton
has a single CSS node with name button. To differentiate
it from a plain Button
, it gets the .scale style class.
Properties
active
If the scale button should be pressed in.
Readable
adjustment
The Adjustment
that is used as the model.
Readable | Writeable
icons
The names of the icons to be used by the scale button.
The first item in the array will be used in the button when the current value is the lowest value, the second item for the highest value. All the subsequent icons will be used for all the other values, spread evenly over the range of values.
If there’s only one icon name in the @icons array, it will be used for all the values. If only two icon names are in the @icons array, the first one will be used for the bottom 50% of the scale, and the second one for the top 50%.
It is recommended to use at least 3 icons so that the
ScaleButton
reflects the current value of the scale
better for the users.
Readable | Writeable
value
The value of the scale.
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
Signals
popdown
Emitted to dismiss the popup.
This is a keybinding signal.
The default binding for this signal is Escape.
Action
popup
Emitted to popup the scale widget.
This is a keybinding signal.
The default bindings for this signal are Space, Enter and Return.
Action
value-changed
Emitted when the value field has changed.
Widget
destroy
Signals that all holders of a reference to the widget should release the reference that they hold.
May result in finalization of the widget if all references are released.
This signal is not suitable for saving widget state.
direction-changed
Emitted when the text direction of a widget changes.
hide
Emitted when @widget is hidden.
keynav-failed
Emitted if keyboard navigation fails.
See WidgetExt::keynav_failed()
for details.
map
Emitted when @widget is going to be mapped.
A widget is mapped when the widget is visible (which is controlled with
visible
) and all its parents up to the toplevel widget
are also visible.
The ::map signal can be used to determine whether a widget will be drawn,
for instance it can resume an animation that was stopped during the
emission of unmap
.
mnemonic-activate
Emitted when a widget is activated via a mnemonic.
The default handler for this signal activates @widget if @group_cycling
is false
, or just makes @widget grab focus if @group_cycling is true
.
move-focus
Emitted when the focus is moved.
Action
query-tooltip
Emitted when the widgets tooltip is about to be shown.
This happens when the has-tooltip
property
is true
and the hover timeout has expired with the cursor hovering
“above” @widget; or emitted when @widget got focus in keyboard mode.
Using the given coordinates, the signal handler should determine
whether a tooltip should be shown for @widget. If this is the case
true
should be returned, false
otherwise. Note that if
@keyboard_mode is true
, the values of @x and @y are undefined and
should not be used.
The signal handler is free to manipulate @tooltip with the therefore destined function calls.
realize
Emitted when @widget is associated with a gdk::Surface
.
This means that WidgetExt::realize()
has been called
or the widget has been mapped (that is, it is going to be drawn).
show
Emitted when @widget is shown.
state-flags-changed
Emitted when the widget state changes.
unmap
Emitted when @widget is going to be unmapped.
A widget is unmapped when either it or any of its parents up to the toplevel widget have been set as hidden.
As ::unmap indicates that a widget will not be shown any longer, it can be used to, for example, stop an animation on the widget.
unrealize
Emitted when the gdk::Surface
associated with @widget is destroyed.
This means that WidgetExt::unrealize()
has been called
or the widget has been unmapped (that is, it is going to be hidden).
Implements
ScaleButtonExt
, WidgetExt
, glib::ObjectExt
, AccessibleExt
, BuildableExt
, ConstraintTargetExt
, AccessibleRangeExt
, OrientableExt
, WidgetExtManual
, AccessibleExtManual
Implementations§
source§impl ScaleButton
impl ScaleButton
pub const NONE: Option<&'static ScaleButton> = None
sourcepub fn new(min: f64, max: f64, step: f64, icons: &[&str]) -> ScaleButton
pub fn new(min: f64, max: f64, step: f64, icons: &[&str]) -> ScaleButton
Creates a ScaleButton
.
The new scale button has a range between @min and @max, with a stepping of @step.
min
the minimum value of the scale (usually 0)
max
the maximum value of the scale (usually 100)
step
the stepping of value when a scroll-wheel event, or up/down arrow event occurs (usually 2)
icons
a None
-terminated
array of icon names, or None
if you want to set the list
later with gtk_scale_button_set_icons()
Returns
a new ScaleButton
sourcepub fn builder() -> ScaleButtonBuilder
pub fn builder() -> ScaleButtonBuilder
Creates a new builder-pattern struct instance to construct ScaleButton
objects.
This method returns an instance of ScaleButtonBuilder
which can be used to create ScaleButton
objects.
Trait Implementations§
source§impl Clone for ScaleButton
impl Clone for ScaleButton
source§impl Debug for ScaleButton
impl Debug for ScaleButton
source§impl Default for ScaleButton
impl Default for ScaleButton
source§impl Display for ScaleButton
impl Display for ScaleButton
source§impl HasParamSpec for ScaleButton
impl HasParamSpec for ScaleButton
type ParamSpec = ParamSpecObject
§type SetValue = ScaleButton
type SetValue = ScaleButton
type BuilderFn = fn(_: &str) -> ParamSpecObjectBuilder<'_, ScaleButton>
fn param_spec_builder() -> Self::BuilderFn
source§impl Hash for ScaleButton
impl Hash for ScaleButton
source§impl<T: ScaleButtonImpl> IsSubclassable<T> for ScaleButton
impl<T: ScaleButtonImpl> IsSubclassable<T> for ScaleButton
source§fn class_init(class: &mut Class<Self>)
fn class_init(class: &mut Class<Self>)
source§fn instance_init(instance: &mut InitializingObject<T>)
fn instance_init(instance: &mut InitializingObject<T>)
source§impl Ord for ScaleButton
impl Ord for ScaleButton
source§impl ParentClassIs for ScaleButton
impl ParentClassIs for ScaleButton
source§impl<OT: ObjectType> PartialEq<OT> for ScaleButton
impl<OT: ObjectType> PartialEq<OT> for ScaleButton
source§impl<OT: ObjectType> PartialOrd<OT> for ScaleButton
impl<OT: ObjectType> PartialOrd<OT> for ScaleButton
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 ScaleButton
impl StaticType for ScaleButton
source§fn static_type() -> Type
fn static_type() -> Type
Self
.impl Eq for ScaleButton
impl IsA<Accessible> for ScaleButton
impl IsA<AccessibleRange> for ScaleButton
impl IsA<Buildable> for ScaleButton
impl IsA<ConstraintTarget> for ScaleButton
impl IsA<Orientable> for ScaleButton
impl IsA<ScaleButton> for VolumeButton
impl IsA<Widget> for ScaleButton
Auto Trait Implementations§
impl RefUnwindSafe for ScaleButton
impl !Send for ScaleButton
impl !Sync for ScaleButton
impl Unpin for ScaleButton
impl UnwindSafe for ScaleButton
Blanket Implementations§
source§impl<O> AccessibleExtManual for Owhere
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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) -> SignalHandlerIdwhere
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fn connect_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F ) -> SignalHandlerIdwhere F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,
signal_id
on this object. Read moresource§fn connect_local<F>(
&self,
signal_name: &str,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value> + 'static,
fn connect_local<F>( &self, signal_name: &str, after: bool, callback: F ) -> SignalHandlerIdwhere F: Fn(&[Value]) -> Option<Value> + 'static,
signal_name
on this object. Read moresource§fn connect_local_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value> + 'static,
fn connect_local_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F ) -> SignalHandlerIdwhere F: Fn(&[Value]) -> Option<Value> + 'static,
signal_id
on this object. Read moresource§unsafe fn connect_unsafe<F>(
&self,
signal_name: &str,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value>,
unsafe fn connect_unsafe<F>( &self, signal_name: &str, after: bool, callback: F ) -> SignalHandlerIdwhere F: Fn(&[Value]) -> Option<Value>,
signal_name
on this object. Read moresource§unsafe fn connect_unsafe_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value>,
unsafe fn connect_unsafe_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F ) -> SignalHandlerIdwhere F: Fn(&[Value]) -> Option<Value>,
signal_id
on this object. Read moresource§fn connect_closure(
&self,
signal_name: &str,
after: bool,
closure: RustClosure
) -> SignalHandlerId
fn connect_closure( &self, signal_name: &str, after: bool, closure: RustClosure ) -> SignalHandlerId
signal_name
on this object. Read moresource§fn connect_closure_id(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
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