#[repr(transparent)]pub struct Calendar { /* private fields */ }
Expand description
Calendar
is a widget that displays a Gregorian calendar, one month
at a time.
A Calendar
can be created with new()
.
The date that is currently displayed can be altered with
select_day()
.
To place a visual marker on a particular day, use
mark_day()
and to remove the marker,
unmark_day()
. Alternative, all
marks can be cleared with clear_marks()
.
The selected date can be retrieved from a Calendar
using
date()
.
Users should be aware that, although the Gregorian calendar is the legal calendar in most countries, it was adopted progressively between 1582 and 1929. Display before these dates is likely to be historically incorrect.
CSS nodes
calendar.view
├── header
│ ├── button
│ ├── stack.month
│ ├── button
│ ├── button
│ ├── label.year
│ ╰── button
╰── grid
╰── label[.day-name][.week-number][.day-number][.other-month][.today]
Calendar
has a main node with name calendar. It contains a subnode
called header containing the widgets for switching between years and months.
The grid subnode contains all day labels, including week numbers on the left (marked with the .week-number css class) and day names on top (marked with the .day-name css class).
Day labels that belong to the previous or next month get the .other-month style class. The label of the current day get the .today style class.
Marked day labels get the :selected state assigned.
Properties
day
The selected day (as a number between 1 and 31).
Readable | Writeable
month
The selected month (as a number between 0 and 11).
This property gets initially set to the current month.
Readable | Writeable
show-day-names
Determines whether day names are displayed.
Readable | Writeable
show-heading
Determines whether a heading is displayed.
Readable | Writeable
show-week-numbers
Determines whether week numbers are displayed.
Readable | Writeable
year
The selected year.
This property gets initially set to the current year.
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
day-selected
Emitted when the user selects a day.
next-month
Emitted when the user switched to the next month.
next-year
Emitted when user switched to the next year.
prev-month
Emitted when the user switched to the previous month.
prev-year
Emitted when user switched to the previous year.
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
WidgetExt
, glib::ObjectExt
, AccessibleExt
, BuildableExt
, ConstraintTargetExt
, WidgetExtManual
, AccessibleExtManual
Implementations§
source§impl Calendar
impl Calendar
sourcepub fn builder() -> CalendarBuilder
pub fn builder() -> CalendarBuilder
Creates a new builder-pattern struct instance to construct Calendar
objects.
This method returns an instance of CalendarBuilder
which can be used to create Calendar
objects.
sourcepub fn clear_marks(&self)
pub fn clear_marks(&self)
Remove all visual markers.
sourcepub fn date(&self) -> DateTime
pub fn date(&self) -> DateTime
Returns a GDateTime
representing the shown
year, month and the selected day.
The returned date is in the local time zone.
Returns
the GDate
representing the shown date
sourcepub fn day_is_marked(&self, day: u32) -> bool
pub fn day_is_marked(&self, day: u32) -> bool
sourcepub fn shows_day_names(&self) -> bool
pub fn shows_day_names(&self) -> bool
Returns whether @self is currently showing the names of the week days.
This is the value of the show-day-names
property.
Returns
Whether the calendar shows day names.
sourcepub fn shows_heading(&self) -> bool
pub fn shows_heading(&self) -> bool
Returns whether @self is currently showing the heading.
This is the value of the show-heading
property.
Returns
Whether the calendar is showing a heading.
sourcepub fn shows_week_numbers(&self) -> bool
pub fn shows_week_numbers(&self) -> bool
Returns whether @self is showing week numbers right now.
This is the value of the show-week-numbers
property.
Returns
Whether the calendar is showing week numbers.
sourcepub fn mark_day(&self, day: u32)
pub fn mark_day(&self, day: u32)
Places a visual marker on a particular day of the current month.
day
the day number to mark between 1 and 31.
sourcepub fn select_day(&self, date: &DateTime)
pub fn select_day(&self, date: &DateTime)
Switches to @date’s year and month and select its day.
date
a GDateTime
representing the day to select
sourcepub fn set_show_day_names(&self, value: bool)
pub fn set_show_day_names(&self, value: bool)
sourcepub fn set_show_heading(&self, value: bool)
pub fn set_show_heading(&self, value: bool)
Sets whether the calendar should show a heading.
The heading contains the current year and month as well as buttons for changing both.
value
Whether to show the heading in the calendar
sourcepub fn set_show_week_numbers(&self, value: bool)
pub fn set_show_week_numbers(&self, value: bool)
Sets whether week numbers are shown in the calendar.
value
whether to show week numbers on the left of the days
sourcepub fn unmark_day(&self, day: u32)
pub fn unmark_day(&self, day: u32)
sourcepub fn month(&self) -> i32
pub fn month(&self) -> i32
The selected month (as a number between 0 and 11).
This property gets initially set to the current month.
sourcepub fn set_month(&self, month: i32)
pub fn set_month(&self, month: i32)
The selected month (as a number between 0 and 11).
This property gets initially set to the current month.
sourcepub fn year(&self) -> i32
pub fn year(&self) -> i32
The selected year.
This property gets initially set to the current year.
sourcepub fn set_year(&self, year: i32)
pub fn set_year(&self, year: i32)
The selected year.
This property gets initially set to the current year.
sourcepub fn connect_day_selected<F: Fn(&Self) + 'static>(
&self,
f: F
) -> SignalHandlerId
pub fn connect_day_selected<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId
Emitted when the user selects a day.
sourcepub fn connect_next_month<F: Fn(&Self) + 'static>(
&self,
f: F
) -> SignalHandlerId
pub fn connect_next_month<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId
Emitted when the user switched to the next month.
sourcepub fn connect_next_year<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId
pub fn connect_next_year<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId
Emitted when user switched to the next year.
sourcepub fn connect_prev_month<F: Fn(&Self) + 'static>(
&self,
f: F
) -> SignalHandlerId
pub fn connect_prev_month<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId
Emitted when the user switched to the previous month.
sourcepub fn connect_prev_year<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId
pub fn connect_prev_year<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId
Emitted when user switched to the previous year.
pub fn connect_day_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId
pub fn connect_month_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId
pub fn connect_show_day_names_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId
pub fn connect_show_heading_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId
pub fn connect_show_week_numbers_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId
pub fn connect_year_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId
Trait Implementations§
source§impl HasParamSpec for Calendar
impl HasParamSpec for Calendar
source§impl Ord for Calendar
impl Ord for Calendar
source§impl<OT: ObjectType> PartialEq<OT> for Calendar
impl<OT: ObjectType> PartialEq<OT> for Calendar
source§impl<OT: ObjectType> PartialOrd<OT> for Calendar
impl<OT: ObjectType> PartialOrd<OT> for Calendar
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 Calendar
impl StaticType for Calendar
source§fn static_type() -> Type
fn static_type() -> Type
Self
.impl Eq for Calendar
impl IsA<Accessible> for Calendar
impl IsA<Buildable> for Calendar
impl IsA<ConstraintTarget> for Calendar
impl IsA<Widget> for Calendar
Auto Trait Implementations§
impl RefUnwindSafe for Calendar
impl !Send for Calendar
impl !Sync for Calendar
impl Unpin for Calendar
impl UnwindSafe for Calendar
Blanket Implementations§
source§impl<O> AccessibleExtManual for Owhere
O: IsA<Accessible>,
impl<O> AccessibleExtManual for Owhere O: IsA<Accessible>,
source§fn update_property(&self, properties: &[Property<'_>])
fn update_property(&self, properties: &[Property<'_>])
source§fn update_relation(&self, relations: &[Relation<'_>])
fn update_relation(&self, relations: &[Relation<'_>])
source§fn update_state(&self, states: &[State])
fn update_state(&self, states: &[State])
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impl<T> Cast for Twhere T: ObjectType,
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of the object and cast it to the type V. Read moresource§fn property_value(&self, property_name: &str) -> Value
fn property_value(&self, property_name: &str) -> Value
property_name
of the object. Read moresource§fn property_type(&self, property_name: &str) -> Option<Type>
fn property_type(&self, property_name: &str) -> Option<Type>
property_name
of this object. Read moresource§fn find_property(&self, property_name: &str) -> Option<ParamSpec>
fn find_property(&self, property_name: &str) -> Option<ParamSpec>
ParamSpec
of the property property_name
of this object.source§fn list_properties(&self) -> PtrSlice<ParamSpec>
fn list_properties(&self) -> PtrSlice<ParamSpec>
ParamSpec
of the properties of this object.source§fn freeze_notify(&self) -> PropertyNotificationFreezeGuard
fn freeze_notify(&self) -> PropertyNotificationFreezeGuard
source§unsafe fn set_qdata<QD>(&self, key: Quark, value: QD)where
QD: 'static,
unsafe fn set_qdata<QD>(&self, key: Quark, value: QD)where QD: 'static,
key
. Read moresource§unsafe fn qdata<QD>(&self, key: Quark) -> Option<NonNull<QD>>where
QD: 'static,
unsafe fn qdata<QD>(&self, key: Quark) -> Option<NonNull<QD>>where QD: 'static,
key
. Read moresource§unsafe fn steal_qdata<QD>(&self, key: Quark) -> Option<QD>where
QD: 'static,
unsafe fn steal_qdata<QD>(&self, key: Quark) -> Option<QD>where QD: 'static,
key
. Read moresource§unsafe fn set_data<QD>(&self, key: &str, value: QD)where
QD: 'static,
unsafe fn set_data<QD>(&self, key: &str, value: QD)where QD: 'static,
key
. Read moresource§unsafe fn data<QD>(&self, key: &str) -> Option<NonNull<QD>>where
QD: 'static,
unsafe fn data<QD>(&self, key: &str) -> Option<NonNull<QD>>where QD: 'static,
key
. Read moresource§unsafe fn steal_data<QD>(&self, key: &str) -> Option<QD>where
QD: 'static,
unsafe fn steal_data<QD>(&self, key: &str) -> Option<QD>where QD: 'static,
key
. Read moresource§fn block_signal(&self, handler_id: &SignalHandlerId)
fn block_signal(&self, handler_id: &SignalHandlerId)
source§fn unblock_signal(&self, handler_id: &SignalHandlerId)
fn unblock_signal(&self, handler_id: &SignalHandlerId)
source§fn stop_signal_emission(&self, signal_id: SignalId, detail: Option<Quark>)
fn stop_signal_emission(&self, signal_id: SignalId, detail: Option<Quark>)
source§fn stop_signal_emission_by_name(&self, signal_name: &str)
fn stop_signal_emission_by_name(&self, signal_name: &str)
source§fn connect<F>(
&self,
signal_name: &str,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,
fn connect<F>( &self, signal_name: &str, after: bool, callback: F ) -> SignalHandlerIdwhere F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,
signal_name
on this object. Read moresource§fn connect_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,
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