Struct gtk4::ProgressBar
source · #[repr(transparent)]pub struct ProgressBar { /* private fields */ }
Expand description
ProgressBar
is typically used to display the progress of a long
running operation.
It provides a visual clue that processing is underway. ProgressBar
can be used in two different modes: percentage mode and activity mode.
When an application can determine how much work needs to take place
(e.g. read a fixed number of bytes from a file) and can monitor its
progress, it can use the ProgressBar
in percentage mode and the
user sees a growing bar indicating the percentage of the work that
has been completed. In this mode, the application is required to call
set_fraction()
periodically to update the progress bar.
When an application has no accurate way of knowing the amount of work
to do, it can use the ProgressBar
in activity mode, which shows
activity by a block moving back and forth within the progress area. In
this mode, the application is required to call pulse()
periodically to update the progress bar.
There is quite a bit of flexibility provided to control the appearance
of the ProgressBar
. Functions are provided to control the orientation
of the bar, optional text can be displayed along with the bar, and the
step size used in activity mode can be set.
CSS nodes
progressbar[.osd]
├── [text]
╰── trough[.empty][.full]
╰── progress[.pulse]
ProgressBar
has a main CSS node with name progressbar and subnodes with
names text and trough, of which the latter has a subnode named progress. The
text subnode is only present if text is shown. The progress subnode has the
style class .pulse when in activity mode. It gets the style classes .left,
.right, .top or .bottom added when the progress ‘touches’ the corresponding
end of the GtkProgressBar. The .osd class on the progressbar node is for use
in overlays like the one Epiphany has for page loading progress.
Accessibility
ProgressBar
uses the AccessibleRole::ProgressBar
role.
Properties
ellipsize
The preferred place to ellipsize the string.
The text will be ellipsized if the progress bar does not have enough room
to display the entire string, specified as a pango::EllipsizeMode
.
Note that setting this property to a value other than
pango::EllipsizeMode::None
has the side-effect that the progress bar requests
only enough space to display the ellipsis (“…”). Another means to set a
progress bar’s width is WidgetExt::set_size_request()
.
Readable | Writeable
fraction
The fraction of total work that has been completed.
Readable | Writeable
inverted
Invert the direction in which the progress bar grows.
Readable | Writeable
pulse-step
The fraction of total progress to move the bounding block when pulsed.
Readable | Writeable
show-text
Sets whether the progress bar will show a text in addition to the bar itself.
The shown text is either the value of the text
property or, if that is None
, the fraction
value, as a percentage.
To make a progress bar that is styled and sized suitably for showing text
(even if the actual text is blank), set show-text
to true
and text
to the empty string (not None
).
Readable | Writeable
text
Text to be displayed in the progress bar.
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
, AccessibleRangeExt
, OrientableExt
, WidgetExtManual
, AccessibleExtManual
Implementations§
source§impl ProgressBar
impl ProgressBar
sourcepub fn new() -> ProgressBar
pub fn new() -> ProgressBar
sourcepub fn builder() -> ProgressBarBuilder
pub fn builder() -> ProgressBarBuilder
Creates a new builder-pattern struct instance to construct ProgressBar
objects.
This method returns an instance of ProgressBarBuilder
which can be used to create ProgressBar
objects.
sourcepub fn ellipsize(&self) -> EllipsizeMode
pub fn ellipsize(&self) -> EllipsizeMode
sourcepub fn is_inverted(&self) -> bool
pub fn is_inverted(&self) -> bool
sourcepub fn pulse_step(&self) -> f64
pub fn pulse_step(&self) -> f64
sourcepub fn shows_text(&self) -> bool
pub fn shows_text(&self) -> bool
Returns whether the ProgressBar
shows text.
See set_show_text()
.
Returns
true
if text is shown in the progress bar
sourcepub fn text(&self) -> Option<GString>
pub fn text(&self) -> Option<GString>
Retrieves the text that is displayed with the progress bar.
The return value is a reference to the text, not a copy of it, so will become invalid if you change the text in the progress bar.
Returns
the text
sourcepub fn pulse(&self)
pub fn pulse(&self)
Indicates that some progress has been made, but you don’t know how much.
Causes the progress bar to enter “activity mode,” where a block
bounces back and forth. Each call to pulse()
causes the block to move by a little bit (the amount of movement
per pulse is determined by set_pulse_step()
).
sourcepub fn set_ellipsize(&self, mode: EllipsizeMode)
pub fn set_ellipsize(&self, mode: EllipsizeMode)
Sets the mode used to ellipsize the text.
The text is ellipsized if there is not enough space to render the entire string.
mode
sourcepub fn set_fraction(&self, fraction: f64)
pub fn set_fraction(&self, fraction: f64)
Causes the progress bar to “fill in” the given fraction of the bar.
The fraction should be between 0.0 and 1.0, inclusive.
fraction
fraction of the task that’s been completed
sourcepub fn set_inverted(&self, inverted: bool)
pub fn set_inverted(&self, inverted: bool)
sourcepub fn set_pulse_step(&self, fraction: f64)
pub fn set_pulse_step(&self, fraction: f64)
sourcepub fn set_show_text(&self, show_text: bool)
pub fn set_show_text(&self, show_text: bool)
Sets whether the progress bar will show text next to the bar.
The shown text is either the value of the text
property or, if that is None
, the fraction
value,
as a percentage.
To make a progress bar that is styled and sized suitably for containing
text (even if the actual text is blank), set show-text
to true
and text
to the empty string (not None
).
show_text
whether to show text
sourcepub fn set_text(&self, text: Option<&str>)
pub fn set_text(&self, text: Option<&str>)
Causes the given @text to appear next to the progress bar.
If @text is None
and show-text
is true
,
the current value of fraction
will be displayed
as a percentage.
If @text is non-None
and show-text
is true
,
the text will be displayed. In this case, it will not display the progress
percentage. If @text is the empty string, the progress bar will still
be styled and sized suitably for containing text, as long as
show-text
is true
.
text
a UTF-8 string
pub fn connect_ellipsize_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId
pub fn connect_fraction_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId
pub fn connect_inverted_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId
pub fn connect_pulse_step_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId
pub fn connect_show_text_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId
pub fn connect_text_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId
Trait Implementations§
source§impl Clone for ProgressBar
impl Clone for ProgressBar
source§impl Debug for ProgressBar
impl Debug for ProgressBar
source§impl Default for ProgressBar
impl Default for ProgressBar
source§impl Display for ProgressBar
impl Display for ProgressBar
source§impl HasParamSpec for ProgressBar
impl HasParamSpec for ProgressBar
type ParamSpec = ParamSpecObject
§type SetValue = ProgressBar
type SetValue = ProgressBar
type BuilderFn = fn(_: &str) -> ParamSpecObjectBuilder<'_, ProgressBar>
fn param_spec_builder() -> Self::BuilderFn
source§impl Hash for ProgressBar
impl Hash for ProgressBar
source§impl Ord for ProgressBar
impl Ord for ProgressBar
source§impl ParentClassIs for ProgressBar
impl ParentClassIs for ProgressBar
source§impl<OT: ObjectType> PartialEq<OT> for ProgressBar
impl<OT: ObjectType> PartialEq<OT> for ProgressBar
source§impl<OT: ObjectType> PartialOrd<OT> for ProgressBar
impl<OT: ObjectType> PartialOrd<OT> for ProgressBar
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 ProgressBar
impl StaticType for ProgressBar
source§fn static_type() -> Type
fn static_type() -> Type
Self
.impl Eq for ProgressBar
impl IsA<Accessible> for ProgressBar
impl IsA<AccessibleRange> for ProgressBar
impl IsA<Buildable> for ProgressBar
impl IsA<ConstraintTarget> for ProgressBar
impl IsA<Orientable> for ProgressBar
impl IsA<Widget> for ProgressBar
Auto Trait Implementations§
impl RefUnwindSafe for ProgressBar
impl !Send for ProgressBar
impl !Sync for ProgressBar
impl Unpin for ProgressBar
impl UnwindSafe for ProgressBar
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<'_>])
source§fn update_state(&self, states: &[State])
fn update_state(&self, states: &[State])
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. 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